In essence, a drainage container is a sealed container for collecting liquid coming from drainage system. Depending on its purpose, it can accumulate water (sedimentary, groundwater, waste or technical), liquid hydrocarbons (oil, gasoline, diesel fuel, etc.), alkalis, acids and other substances of liquid consistency. The contents can be in the tank for a short time and removed as it is filled, or for a long time, ensuring proper storage.
Based on specific operating conditions, corresponding requirements are put forward. The containers in question must have sufficient mechanical strength, required volume, resistance to liquids inside and external factors outside, durability.
Types of containers
First of all, drainage containers are divided according to purpose:
- . They are designed to protect residential buildings and outbuildings. They drain rain, melt, flood and waste water. Tanks are installed on private property and suburban areas, when arranging your own drainage system.
- . They are part of the enterprise protection system and can have different purposes. In addition to the function performed household varieties, industrial tanks provide for the accumulation of various aggressive liquids that can appear during accidents, fuel spills, disruption of technological conditions and other unforeseen circumstances.
- Medical containers. This is a special type of device that is used in the drainage of biological fluids removed from the body during human treatment. The most common are thoracic drainage containers used to clean the human pleural area.
- Containers for long-term liquid storage. In essence, they do not differ from household or industrial types, but have additional structural elements, expanding functionality. The most common options are fire and watering tanks. In them, the water coming from the drainage system is not just recycled, but used for good.
Based on their location and installation method, drainage tanks are divided into underground and external types. For protective drainage, the first option is most often used. The underground tank goes deep into the ground, and only a hatch (or several hatches) remains outside for maintenance. The main advantages are savings in site area, increased fire safety, protection from atmospheric influences, the possibility of liquid flow by gravity, and no need for external design. The main disadvantage is more complex and time-consuming installation.
Outdoor installation is used much less frequently, because requires mandatory pumping equipment and clutters the site. Thoracic containers are only portable, external.
By technical parameters The main selection criterion is the volume of the tank. Typical containers have a volume in the range of 1-100 m 3 (1, 3, 5, 8, 10, 12.5, 16, 20, 25, 40, 50, 63 and 100 m 3). When ordering equipment, this parameter can be any, at the request of the buyer. In addition, depending on the material of the body, drainage tanks are available in metal and plastic versions, and can also be made in the form of a well made of concrete (pouring or reinforced concrete rings).
Design features
A typical drainage tank is a cylindrical tank with spherical or cone-shaped end parts. Its design includes the following elements:
- metal (usually steel), plastic or composite body;
- supports for installation in horizontal or vertical position;
- 2 necks with hatches: the first (working) - for supplying and pumping out liquid, the second (inspection) - for carrying out necessary work, incl. preventive and cleaning measures;
- electric pump;
- ladder to get inside.
- control devices and necessary components.
The container is equipped with pipes and fittings for connecting the supply pipe, installing devices, connecting ventilation system; safety and emergency valves; valves. The following monitoring devices are used: level gauge, thermometer, pressure gauge. The containers can be equipped with heating devices to prevent the liquid from freezing. An opening for emergency liquid discharge with shut-off valves, as well as valves for releasing the released gas, must be provided.
For external tanks it is necessary to provide protection from direct sun rays and precipitation.
Installation features
The most difficult part is installing an underground tank. A pit is dug for it according to the dimensions of the vessel. As a rule, the container is mounted on the foundation in the form reinforced concrete slab 20-40 cm thick. The body is positioned strictly horizontally, and the necks are directed strictly vertically. Moreover, the hatch of the necks should rise above the ground to a height of about 40-50 cm. On sandy (non-heaving soil) the container can be mounted without a slab, i.e. directly onto the crushed stone bed.
The housing is mounted on standard supports and attached to 2 metal strips. These strips are then secured to the slab with anchors. Next, a pipeline is supplied from the drainage system and backfilled with soil.
After connecting the necessary equipment and installing all components, it is necessary to carry out pressure testing with a pressure of 0.2 MPa.
Water containers
Private houses and suburban areas are provided with their own drainage system. While creating isolated circuit storage tanks are used - drainage tanks (wells). Finished structures have a steel or plastic body. In a homemade design, a sealed septic tank is often made from concrete rings.
The most popular are plastic containers with a volume of 1-5 m3. They are buried in the ground and connected to the drainage of groundwater, wastewater or storm water. To prevent freezing, the containers are covered with thermal insulation.
Among the popular models of water containers are the following products:
- S1400: plastic body, volume - 1.4 m3, dimensions - 1.3x1.6x!.55 m, weight - 60 kg. The average price is 17,500 rubles.
- S2000: plastic container volume 2 m3, dimensions - 1.3x2.27x!.55 m, weight - 80 kg. The average price is 23,500 rubles.
- S3000: volume – 3 m 3, dimensions – 1.3x3x1.5 m, weight – 120 kg. The average price is 33,200 rubles.
- U 2000: plastic container with a volume of 2 m 3, dimensions - 1.2x2.8x1.9 m. Price - from 38,000 rubles.
- Aquastore-5: plastic case, volume – 5 m3, dimensions 1.7x2.25x2.1 m, weight – 250 kg. The average price is 66,600 rubles.
When several owners unite, drainage tanks can be used to provide water reserves for unforeseen events (fires, watering during dry periods, etc.). Such reserves can be used for technical needs - for example, organizing washing (while providing filtration). In these cases, large, underground tanks with a volume of 40-50 m 3 are installed.
Industrial containers
At industrial enterprises of various profiles, metal drainage tanks of the EP and EPP types are widely used. They are designed to collect hydrocarbons and other aggressive liquids. Taking into account the increased danger of storing such substances, the design is explosion-proof. The main difference between these products is that the EPP has a liquid heater, while the EPP is produced without it. They are produced according to OST 26-02-2060-79.
Based on the material used for the body, containers are divided into 3 categories:
- Category 1 – body made of VSt3ps4 steel and designed for temperatures down to minus 20 degrees;
- Category 2 – steel 16GS, operating temperature – not lower than minus 40 degrees;
- Category 3 – steel 09G2S, minimum temperature – minus 60 degrees.
Metal protection is provided by internal and external special anti-corrosion coating. Heating in the EPP tank is carried out using a heating cable or coil with coolant (steam or hot water).
EP and EPP containers have the following main characteristics:
- the most popular volume is 1, 3, 5, 8, 12.5 and 50 m3;
- liquid temperature – from 0 to plus 80 degrees;
- pressure inside the tank – 0.7 MPa;
- liquid requirements: kinetic viscosity - no more than 30x106 sq.m/s, density - no higher than 1000 kg/m 3; hydrogen sulfide content – no more than 1.5%;
- The warranty period is up to 10 years.
Explosion protection corresponds to category IIA-TZ according to GOST 12.1.011-78. Oil, alkalis, acid, kerosene, diesel fuel, transformer oil, process water with various impurities, and gas condensate can be stored in the container for a long time.
Each container is equipped with an electric pump for pumping liquid. Submersible and semi-submersible devices can be used. Most often they are installed at the following levels - 3, 3.2, 3.8 and 4 m. Pumps of 2 main types are used - HB50/50 and AHPO-E45/54-K. The containers are produced in 3 climatic versions - HL1 (for cold regions), UHL1 (temperate climate) and T1 (tropical version).
Typical dimensions of underground drainage tanks are shown in the table:
|
Brand |
Volume, m3 |
Diameter, m |
Length, m |
Weight, kg |
|
EP (EPP)-5 |
||||
|
EP (EPP)-8 |
||||
|
EP (EPP) -12.5 |
12,5 |
|||
|
EP-50 and EPP-50 |
The main consumers of EP type tanks (EPP) can be identified: oil and gas processing and mining enterprises, chemical enterprises different specializations, gas stations and gas filling stations, pharmaceutical industry enterprises, fertilizer and herbicide manufacturers, various industrial enterprises, as well as motor transport organizations.
When choosing equipment, it is important to be able to decipher the markings. For this we can give an example - EPP 25-2000-1-2-K. This is an underground, drainage tank with heated liquid with a reservoir with a volume of 25 m 3, an internal diameter of 2000 mm. The designation "1" indicates design, “2” - housing material (steel 16GS), “K” - installation in a concrete well.
In the Russian Federation, underground tanks are produced by several large manufacturers. Particularly noteworthy are the products of the Saratov Reservoir Plant, Remstroymash LLC, Spetsneftekhimmash and UralHydroMash.
Thoracic containers
A special category of drainage systems is medical equipment. Doctors have to deal with significant volumes of pumped out fluid when draining the pleural cavity. In this case, special vessels are used, called thoracic drainage tanks.
A feature of such tanks is the installation of special water seals - valves, which prevent the phenomenon of reflux of liquid back into the cavity. Thoracic containers are made of plastic with low specific gravity and high impact strength. By design, there are one-, two- and three-can options. The units are equipped with a system of tubes that ensure the operation of the drainage system. Among manufacturers, Redax (Italy) and Rocket Medical (England) are especially popular.
Underground drainage tanks used for temporary storage and collection of petroleum products at enterprises in the oil and gas and coke-chemical industries, as a reservoir for draining fuel from technological systems, for storing gas condensate, for draining the remains of various aggressive liquids (oil, oil, diesel fuel, transformer oil, gasoline, alkalis, acids, waste water, etc.). It should be noted that they are not used for draining liquefied hydrocarbon gases LPG.
Performance characteristics of drainage tanks
There are several requirements for the stored product and the conditions at the facility:
- the temperature of the stored liquid should be in the range from -15°C to + 80°C
- kinematic viscosity of the liquid 30x10-6 m 2 /s
- working product density - no more than 1000 kg/m 3
- hazard class of working environments 2, 3, 4 (see GOST 12.1.007-76)
- H 2 S content should not exceed 1.8%
- liquid explosion protection category and group - IIA-T3, IIB-T3 (see GOST 12.1.011-78)
- the minimum ambient temperature should not exceed -60°C
The underground location of the EP/EPP reduces the risk of the stored product entering the environment.
Construction of underground drainage tanks
They are structurally a hollow, all-welded vessel, operating under pressure no higher than 0.07 MPa, with a volume from 1 m 3 to 200 m 3, consisting of metal cylinder and conical bottoms. For technological maintenance, two hatches are installed on the upper side of the shell: one for draining the stored product, the second for gaining access inside for routine inspection, technological maintenance and repair (cleaning, purging, rinsing). The stored product is drained using a semi-submersible pump.
The housing material must be resistant to the negative effects of soil to prevent corrosive, chemical and physical changes. To do this on outside A waterproofing coating made from bitumen-polymer mastics is applied.
The Saratov Reservoir Plant produces two types of underground drainage tanks:
- EP without heater
- EPP with heater for areas where the ambient temperature is below the freezing point of the liquid
The housing of the EPP container is heated by a metal coil in the form of pipes inside the shell, in which the steam-water mixture circulates (pipes), or by a heating cable.
Manufacturing of underground drainage tanks
The Saratov Reservoir Plant has the EP and EPP necessary for the production of underground drainage tanks.
In addition, during production and installation, our specialists are guided by the following regulatory documents:
- GOST R 34347-2017 "Welded steel vessels and apparatus. General technical conditions"
- PB 03-584-03 “Rules for the design, manufacture and acceptance of welded steel vessels and apparatus”
- Industrial safety rules for hazardous production facilities that use equipment operating under excess pressure
- STO 00220227-005-2009 “Welded steel vessels and apparatus high pressure. General technical requirements"
All underground drainage tanks are made from the following steel grades, depending on operating conditions:
- St3sp for operation at temperatures down to -20°C
- 09G2S-9 for operation at temperatures not exceeding -40°C
- 09G2S-8 for areas where the average five-day temperature is below -40°C
Depending on the temperature of the operating area, the following designs of drainage tanks are manufactured:
- version 1 - the estimated ambient temperature of the coldest five-day period is below -20°C
- version 2 - temperature up to -40°С
- version 3 - operating temperature up to -60°С
Depending on climatic conditions, all drainage tanks are produced in three climatic versions:
- HL 1 for use in cold climates
- UHL 1 for temperate climates
- T1 - for tropical climates
For reliable operation, waterproofing and thermal insulation are provided during the design process.
Technological piping of underground drainage tanks
On construction site all vessels are connected to a pipeline, which, on the one hand, approaches the drain filter of the pipe, and on the other, to a pump installed in one of the necks, or falls below the level of the so-called “dead residue”, thereby creating a hydraulic seal that prevents the formation of sparks in process of loading and unloading operations.
For reliable and safe use in EP/EPP tanks, pipes and fittings are provided for installing control, measuring and other equipment, for example, a thermometer, pressure gauge, devices for determining the amount of product (level gauges), thermoelectric converter, devices for automatically stopping the supply or pumping out of the product, alarm systems, shut-off and control valves.
The necessary equipment for draining and loading operations are pumps and pumping units various types and types that facilitate technological processes. The pumps are manufactured in an explosion-proof and corrosion-resistant design with a double seal to reduce the risk of flames and exposure to the working environment.
Pump installation is possible at four levels: 3 m, 3.2 m, 3.7 m, 3.9 m.
At the Customer's request, the pump can be installed in a concrete or metal well, which will protect the pump from the negative effects of the working product.
EP/EPP containers are supplied assembled. Only hatches and pipes whose length exceeds 1 m are transported separately. They (hatches and pipes) are cut off at a level of 0.4 m from the edge of the shell.
The height of the necks for routine maintenance and installation of pumps depends on the depth of immersion of the housing into the ground.
All manufactured products are supplied with a passport that has passed quality control and acceptance, certified by regulatory authorities.
Calculation, production and delivery of underground drainage tanks is carried out on the basis of the Questionnaire or Technical Specifications of the Customer.
Summary table of technical characteristics of underground drainage tanks EP/EPP
| Characteristics | EP-5 | EP-8 | EP-10 | EP-12.5 | EP-16 | EP-20 | EP-25 | EP-40 | EP-63 | EP-100 |
|---|---|---|---|---|---|---|---|---|---|---|
| Work Product | petroleum products, oils, condensate, oil-water mixture, acids, alkalis, waste water, etc. with a density of up to 1000 kg/m 3 and kinetic viscosity of up to 30x10 -6 m 2 /s, H 2 S content not more than 1% | |||||||||
| Nominal volume, m 3 | 5 | 8 | 10 | 12,5 | 16 | 20 | 25 | 40 | 63 | 100 |
| Operating temperature of the stored product, ºС | from -15 to +80 | |||||||||
| Working pressure, MPa | 0.07 MPa (test 0.2 MPa) | |||||||||
| Operating temperature, ºС | from -45 to +80 | |||||||||
| Type of bottoms | conical, elliptical | |||||||||
| Service life, years | 20 | |||||||||
dimensions(selected individually and given for reference) |
||||||||||
| Diameter D, mm | 1600 | 2000 | 2000 | 2000 | 2000 | 2400 | 2400 | 2400 | 3000 | 3000 |
| Length L, mm | 2821 | 2920 | 3320 | 4320 | 5320 | 4840 | 5850 | 9026 | 9300 | 14900 |
| Height H, mm | 4031 | 3440 | 3440 | 3440 | 3440 | 3525 | 3525 | 4100 | 4150 | 4150 |
| Neck height H1, mm | 1700 | 1300 | 1300 | 1300 | 1300 | 900 | 900 | 1600 | 1000 | 1000 |
| Width, mm | 1760 | 2051 | 2051 | 2051 | 2051 | 2450 | 2450 | 2450 | 3050 | 3050 |
| Pump depth | 3; 3,2; 3,7; 3,9 | |||||||||
| Weight, kg | 1500 | 2900 | 1838 | 2037 | 2418 | 2455 | 4300 | 6148 | 7296 | 10618 |
How to buy an underground drainage tank at the Saratov Reservoir Plant?
In order to find out the cost of an underground drainage tank, you can:
- contact our specialists by phone 8-800-555-9480
- send technical requirements (operating conditions, performance) or a completed Questionnaire to email
- use the form " "
Saratov Reservoir Plant offers a comprehensive supply of your facility with products of our production. We also carry out engineering surveys, facility design, delivery of metal structures of our own production, installation of EP/EPP tanks, tanks and vessels.
§ The operation of draining tanks and containers should be carried out in agreement with the operator treatment facilities workshop No. 11. When draining tanks, pay special attention to the condition of the drained liquid (water, waste alkali, soap).
§ The position of the siphon valve on tanks must be marked with letters IN(water), P(product).
§ Before starting drainage, make sure that the siphon valve is in working order.
§ Set the tap (valve) to position B “water”, marked on the tanks.
§ Using litmus paper, measure the pH.
§ If the drained liquid during sampling contains water or soap, then repeat the drainage.
§ The worker draining tanks and containers must be nearby and monitor the drained oil product.
§ When an oil product appears in the drained liquid, the tap should be closed until only water appears or closed completely and the tank or container should be considered prepared for pumping.
§ After completion of drainage, the siphon should be turned to position P “product” in the cold season.
§ In the logbook after stopping the drainage of tanks and containers, it is necessary to reflect: coordination of your actions, pH in the drained liquid, time of start and end of drainage.
§ Each watch, while inspecting tank farms, must make sure that all siphon valves are in the closed position and there is no uncontrolled and unauthorized discharge of petroleum products, which is possible as a result of the actions of persons not related to the maintenance of this facility. If such facts are discovered, inform the workshop management, the plant dispatcher, and act in accordance with the PLAS.
3.2. SAFETY REQUIREMENTS FOR DRAINAGE
Work on draining the tank belongs to gas hazardous work of the 2nd group. These works are carried out without issuing a work permit, but with the obligatory registration of such work before they begin in the site's shift log.
§ Drainage of produced water should be carried out no earlier than 2 hours after the cessation of movement of the petroleum product in the tank or container.
§ The team of performers consists of at least 2 people.
§ Drainage should be carried out in a filter gas mask and in the presence of a backup.
§ The drainer and the observer must stand with their backs to the wind.
§ When working with drainage water, it is necessary to use personal protective equipment: safety glasses, rubber gloves.
§ On contact, drainage water may cause eye, respiratory and skin irritation. Avoid contact with eyes and skin. Do not allow them to enter the gastrointestinal tract.
§ During sampling drainage water, when carrying out minor repair work (tightening valve seals, sealing flange connections, preparing for equipment repair, etc.), short-term contact of workers with petroleum products is possible, causing harmful effects. Therefore, all workers and engineers are allowed to independent work after completing safety training (introductory, primary, special), fire and gas safety, as well as on-the-job training and testing of acquired knowledge by a workshop commission.
3.3. STRICTLY PROHIBITED
§ Discharge of drained liquid past the sewer pit or undercut communications.
§ Drain oil products into the sewer system.
§ Leave the siphon valve in position B “water” in cold weather to avoid freezing.
§ Leave the siphon valve open unattended.
§ Use a tool not specifically designed for this purpose to open and close in order to avoid damage to the valve.
§ Turn the siphon valve in the open position.
§ To break rules, established by the instructions on labor protection “According to fire safety rules in workshop No. 3” section 3.5.2. IOT-3-008.
§ Allow persons who are not familiar with these instructions to work.
3.4. RESPONSIBILITY
If the instructions are violated, the culprit bears administrative and financial liability.
4. Registration of changes to a local regulatory document
Table 1
List of changes Instructions
|
Version |
Approval date |
Effective date |
Details of the approver document |
"Pervomaiskhimmash" sells underground tanks designed for receiving, storing and processing petrochemicals, condensates, and various liquids. Our factory has everything necessary equipment, designed for the production of tanks for storing petroleum products, which are indispensable in any modern enterprises. Wide range of designs and low prices Many large companies are attracted to underground tanks and order products from us. Our equipment is installed at enterprises in many cities Russian Federation(Moscow, Tomsk, Ufa, Kazan, Novy Urengoy, Usinsk, etc.).
Underground tanks: scope of application
The scope of application of underground tanks for petroleum products is extremely wide, since the tanks are suitable for storing very aggressive substances. The structures withstand pressure changes and maintain their integrity at different temperature conditions. High performance characteristics underground tanks are explained by high-quality raw materials, as well as a special manufacturing technology, which takes into account every little detail: the characteristics of the enterprise where the tanks will be installed, climatic conditions, intensity of operation, estimated volumes of the substance that will fill the tank, and much more. Taking into account these characteristics, as well as customer requirements, we manufacture high-quality underground tanks for petroleum products of various types. geometric shapes and sizes.
The containers are versatile and are actively used not only in the petrochemical industry and metallurgy, but also in agriculture, structures are installed within large agricultural complexes.
Many large oil companies specializing in field development, production and sale of oil cooperate with us and purchase equipment at very competitive prices. We have established the production of large-sized drainage tanks that are suitable for transporting petrochemicals over long distances. We mainly produce vertical type drainage tanks. They are easy to install, and their volume is approximately five cubic meters.
Our containers are good because they are solid durable structures designed in such a way that fuel leakage is almost completely eliminated, because the equipment is very sealed. Many tanks have thick double walls, a double bottom, and the space between the surfaces is filled with either liquid or gas. In addition, when producing drainage tanks, the equipment is equipped with a pressure gauge, with which the pressure level can be easily controlled.
Design features of underground tanks
Underground tanks are horizontal cylindrical tanks that have conical bottoms and a pair of hatches designed to drain substances. In addition, the cleaning process of the inside of the tank is carried out through the hatches.
The production of tanks for storing petroleum products is our core activity, therefore, if you need high-quality all-welded devices, then you can safely contact us, since we manufacture structures in any configuration and in any quantity.
We can supplement underground containers with various devices: nozzles, built-in heaters, concrete or metal wells, pumps, etc. These devices help protect the engine from negative influences: mechanical damage, precipitation, etc.
In some cases, drainage tanks for storing petroleum products can be equipped with heating means; as a rule, this is necessary to maintain the temperature at which a particular substance is supposed to be stored. A cable or coil is connected to the device, due to which liquid substances are heated by a steam or water mixture.
There are two types of construction:- EP – underground tanks without heating;
- EPP – underground tanks with heating.
The production of tanks for storing petroleum products involves the installation of thermal insulation that prevents heat dissipation into the external environment.
Underground tanks for petroleum products are designed taking into account physical and chemical properties substances that will be stored in vessels. Therefore, many designs have electric pumping units, and the devices themselves are manufactured strictly in a vertical position. Depending on the properties of the pumped medium, the tanks are equipped with:
- electric pump unit, type HB 50/50 – for containers that are not subject to heat treatment;
- electric pump unit AHPO-E 45/54-K-2G – for containers subject to heat treatment.
We produce drainage containers of any level of complexity, in any configuration. If you find it difficult to draw up technical specifications, we can help you draw up individual project, which will take into account the characteristics of your enterprise.
The most popular drainage tanks for storing petroleum products are made of steel. Durable welded structures ensure careful storage of liquids and gaseous substances in any climatic and temperature conditions.
Advantages of underground tanks for petroleum products
Pervomaiskhimash offers a wide range of equipment. Our drainage tanks for storing petroleum products are designed to receive and store aggressive substances of various classes of chemical activity. We strictly comply with technological standards, and the production of tanks for storing petroleum products is carried out using the latest materials.
Finished products differ:- versatility,
- low cost,
- high performance characteristics.
Many of our clients note that we have an extremely favorable price-quality ratio of the original specialized equipment, that’s why they order drainage tanks for storing petroleum products from us.
Contact us now and get detailed advice on our range. We are attentive to the requirements of each customer and offer comfortable conditions for cooperation. We are always happy to help you! Call the number listed in the “Contacts” section.
APPLICATION AREA
These technical specifications apply to underground horizontal drainage tanksnew types of EP and EPP (hereinafter referred to as “containers”, “products”, “equipment”) intended for the discharge of light and dark petroleum products, oil, oils, condensate (including mixed with water), washing liquid (detergent solutions) .
Climatic versions EP, EPP according to GOST 15150 are given in Table 1.
Table 1
Climatic versions EP, EPP
| Climatic performance | The steel grade used for the manufacture of EP, EPP | Estimated outside air temperature of the coldest five-day period, ºС |
| U | 09G2S-6, 16GS-6, 09G2S-12, 16GS-12 | minus 20ºС |
| HL | 09G2S-8, 10G2S1-8, 09G2S-14, 10G2S1-14 | minus 40ºС |
| UHL | minus 60ºС |
The designation diagram for an underground drainage tank is shown in Figure 1.
| EP | 16 | 2000 | 1 | A | K/V | WITH | UHL1 | |||||||||
| Type of climate control and placement category | ||||||||||||||||
| Type of design for seismic resistance: S0, S, PS |
||||||||||||||||
|
Well equipment: K - reinforced concrete well; MK - metal well; /B - water heater of the well; /E - electric well heater |
||||||||||||||||
| A - indicated if internal anti-corrosion coating of the container is required | ||||||||||||||||
|
With pump unit: Design: 1 - with a pumping unit with an immersion depth of up to 3 m; 2 - with a pumping unit with an immersion depth of up to 3.7 m. Without pump unit: hatches reach, mm |
||||||||||||||||
| Nominal diameter, mm | ||||||||||||||||
| Nominal volume, m 3 | ||||||||||||||||
|
Type of underground drainage tank: EP - underground drainage tank; EPP - underground drainage tank with heater |
||||||||||||||||
Rice. 1 - Symbol containers
A list of referenced documentation is provided in Appendix A.
TECHNICAL REQUIREMENTS
- Main parameters and characteristics
Tanks must comply with the requirements of these specifications, a set of design documentation developed and approved in in the prescribed manner, GOST R 52630-2012 “Welded steel vessels and apparatus. General technical conditions".
The main technical data, characteristics and parameters of the EP process fittings are given in Table 2.
Table 2.
Basic technical data of the EP
| Volume, m³ | L1, mm | L2, mm | L 3, mm | dimensions, mm (length × width × height) | Weight, kg | L, mm | S, mm |
| 3 | 848 | 512 | 1024 | 3148x1400x2700 | 669 | 2048 | 5 |
| 5 | 848 | 512 | 1024 | 3148x1900x3200 | 864 | 2048 | 5 |
| 10 | 1648 | 712 | 1424 | 3948x2220x3520 | 1184 | 2848 | 5 |
| 25 | 3078 | 1070 | 2140 | 5378x2758x4058 | 2276 | 4278 | 6 |
| 50 | 7850 | 2260 | 4520 | 10148x2768x4068 | 4352 | 9050 | 6 |
| 60 | 8300 | 2375 | 4750 | 10600x2870x4170 | 4756 | 9500 | 6 |
| 75 | 9308 | 2630 | 5260 | 11608x3000x4300 | 5160 | 10508 | 8 |
| 100 | 10730 | 2980 | 5960 | 13030x3240x3540 | 6575 | 11930 | 8 |
The main technical characteristics are given in Table 3.
Table 3.
Main technical characteristics
| Working pressure, MPa (kg/m 3), less | 0,07 | |
| Design pressure, MPa (kg/m3), less | 0,07 | |
| Test test pressure, MPa (kg/m3), less | Hydraulic | 0,1 |
| Pneumatic | - | |
| Operating temperature of the environment, °C | From 0 to 40 | |
| Temperature during steaming, °C | 120 | |
| Minimum allowable negative temperature walls, °C | - | |
| Name of working environment | Commercial oil, petroleum products, mixtures of oil or petroleum products with water, washing liquids | |
| Characteristics of the working environment | Hazard Class | 4 |
| Explosion hazard | T3, II A | |
| Corrosion penetration rate, mm/year | 0,1 | |
| Empty container weight, kg, no more | 8600 | |
| Estimated service life, years, not less | 20 | |
1.2. Design requirements
1.2.1 General design requirements for drainage tanks
The horizontal container EP has a cylindrical design with flat, conical or elliptical bottoms. The thickness of the container walls is from 4 to 12 mm. Design of the bottoms (end caps of the housing) - at an internal excess pressure in the gas space of 0.04 mPa (0.4 kgf/cm²) - flat bottoms, at 0.07 mPa (0.7 kgf/cm²) - conical or elliptical (design bottom depends on strength calculations). Inside the housing, depending on the technological requirements and operating conditions, stiffening ribs (diaphragms), intake chambers, and a ladder for descending and cleaning the walls can be placed.
The tank body houses the entire volume of process fluid
The design of the tank must ensure reliability and safety of operation throughout its entire service life and provide for the possibility of technical inspection, cleaning, complete emptying, purging, maintenance, repair, and operational inspection of metal and connections.
To provide access to the internal cavity, a hatch must be installed on the container. Hatch overhang and nominal diameter DN assigned when designing the tank. The amount of hatch overhang is determined by the depth of the tank and must ensure that the hatch protrudes above the ground by at least 500 mm. The hatch must be closed with a flat lid.
Welded steps are installed inside the hatch. The steps must meet the following requirements:
- the distance between steps along the entire height should be the same and not exceed 250 mm;
- the design of the steps must withstand a concentrated load of 4.5 kN.
For hatch covers weighing more than 20 kg, devices must be provided to facilitate their opening and closing.
The container must be equipped with stiffening rings to allow unobstructed and safe passage of service personnel inside the container. The need for installation and the parameters of the stiffening rings are determined by calculation.
The container can be equipped with clamps for fastening to the foundation. Clamps and fastenings must ensure that the container remains stationary for the entire period of its operation. The choice of clamp design and fastening must be confirmed by strength calculations for buoyant force. Maybe I shouldn’t write about these clamps
The container may be provided with the following pipes and fittings:
- medium supply pipe;
- medium outlet pipe;
- emergency outlet pipe;
- steam or inert gas supply fitting;
- fitting for connection to the gas-air line;
- fitting for installing a level gauge;
- fitting for installing a thermal converter;
- fitting for installing a pressure gauge;
- pipe for installing a breathing valve.
The need for installation and the nominal diameters of specific and additional pipes and fittings are determined when ordering the container.
The connection of the medium supply and discharge pipelines to the container can be flanged or wafer-type.
The location and design of the medium supply pipes must ensure that the medium enters the container below the residue contained in it. When filling an empty container with oil (petroleum products), it must be supplied at a speed of no more than 1 m/s until the inlet pipe is filled.
The design of the underground horizontal drainage tank is shown in Figure 2.
1 - shell; 2 - bottom; 3 - hatch; 4 - stiffening ring; 5 - stairs; 6 - level gauge fitting; 7 - pipe; 8 - manhole.
Figure 2 - Design of an underground horizontal drainage tank
The drainage tank must have the design parameters given in Table 4.
Table 4
Design parameters of drainage tanks
| Name of indicators and units of measurement | Meaning | |||||||
| 1 | 2 | |||||||
| Conditional volume | 8 | 12,5 | 16 | 20 | 25 | 40 | 63 | 100 |
| D (inner diameter of the housing shell), mm | 2000 | 2000 | 2000 | 2400 | 2400 | 2400 | 3000 | 3200 |
The outer surface of the container must have a protective anti-corrosion paint coating that meets the requirements of 1.3 of these technical conditions.
1.2.2 Design features of drainage tanks with a pumping unit
The design of drainage tanks with a pumping unit is shown in Figure 3 and must meet the requirements of subsection 1.2.1.
Depending on the design of the tank, underground horizontal drainage tanks must be made with a pumping unit with an immersion depth of up to 3 m- design 1, with pump unit with immersion depth up to 3.7 m- design 2 and without pump unit.
Number of pumping unitsdetermined when designing the tank.
To ensure installation of the pumping unit, a hatch with a nominal diameter must be installed on the tank to ensure installation of the pumping unit. The hatch overhang is determined when designing the tank. The amount of hatch overhang should be determined by the type of pumping unit, the amount of immersion of the pumping unit, the possibility of placing the pump in a container with installed internal devices(internal heaters), the depth of the container and should ensure that the hatch protrudes above the ground by 500 mm.
1 - shell; 2 - bottom; 3 - manhole; 4 - pump unit hatch;
5 - pumping unit; 6 - heater; 7 - stiffening ring; 8 - stairs; 9 - pipe; 10 - level gauge fitting.
Figure 3 - Design of an underground horizontal drainage tank with a pumping unit and a heater
1.2.3 Design features of drainage tanks with a heater
The design of drainage tanks with a heater is shown in Figure 2 and must meet the requirements of subsection 1.2.1.
Depending on the design of the tank, underground horizontal drainage tanks must be manufactured with or without a heater.
The design and surface area of the heater must ensure uniform heating and maintenance of the temperature of the medium in the container in the operating temperature range at minimum temperature operation of the container.
To ensure inspection and repair of the container, it must be possible to install and dismantle the heater components.
The design of the heater must provide the possibility of placing the housing of the pumping unit, provided that the tank is equipped with a pumping unit.
The design of the heater and its attachment points in the container must ensure the strength and tightness of the heater when moving due to thermal expansion during heating and cooling, and from vibration loads during seismic impact and during the transportation of the container to the installation site.
Additionally, the container must be provided with the following pipes:
- coolant supply pipe;
- coolant outlet pipe.
1.2.4 Design features drainage tanks with pump unit well
The design of drainage tanks with a pump unit well must meet the requirements of subsections 1.2.1 and 1.2.2.
The design of the pump unit well is shown in Figure 3.
The well must be installed on the ground above the hatch of the pumping unit and serve as a thermally insulated shelter for the pumping unit, pipeline fittings, automation and tank control systems to ensure the required temperature regime operation of container components and systems at low ambient temperatures.
Wells must be made of reinforced concrete and steel. In the case of reinforced concrete construction, the manufacturer completes the container with the necessary metal structures, allowing for on-site installation using construction methods make and install a well.
1 - container body; 2 - pump unit hatch; 3 - pumping unit; 4 - well of the pumping unit; 5 - well heater of the pumping unit.
Figure 3 - Well of the pumping unit
The design of the well must provide reliable shelter from precipitation and thermal insulation of all container components intended for installation in the well.
The design of the well must ensure maintenance and repair, installation and dismantling of all equipment installed in the well.
The design of the well and its attachment points must ensure strength when exposed to pressure bulk soil and vibration loads under seismic influence.
1.2.5 Design features of drainage tanks with a heated well of the pumping unit
The design of drainage tanks with a heated well of the pumping unit is shown in Figure 3 and must meet the requirements of subsections 1.2.1, 1.2.2 and 1.2.4.
The heater must be installed in the well of the pumping unit and, together with the well, serve as a thermally insulated heated shelter for the pumping unit, pipeline fittings, automation and control systems for the tank to ensure the required temperature conditions for the operation of the components and systems of the tank at low ambient temperatures.
The heater can be steam-water or electric. In the case of an electric version, the manufacturer completes the container with a thermoelectric cable and the necessary control and mounting components for the heating system, allowing the heater to be mounted in the well at the installation site.
The design of the heater must ensure heating and maintaining the temperature in the well within the operating temperature range at the minimum operating temperature of the container.
The design of the well heater must ensure maintenance and repair, installation and dismantling of all equipment installed in the well.
The design of the well heater and its mounting points in the well or on the hatch of the container must ensure the strength and tightness of the heater when moving from the action of thermal expansion during heating and cooling, from the action of vibration loads during seismic action and during transportation of the container to the installation site.
Additionally, the container must be provided with the following fittings:
- coolant supply fitting;
- coolant outlet fitting.
1.2.6 Design features of thermally insulated containers
The design of containers with thermal insulation must meet the requirements of subsection 1.2.1.
Thermal insulation must be installed on the outer surface of the containers to ensure the required operating temperature conditions at low ambient temperatures.
The design of the thermal insulation together with the heater must ensure that the temperature is maintained in the operating temperature range at the minimum operating temperature of the container.
The thermal insulation structure must be able to be dismantled to allow inspection and repair of the tank.
1.2.7 Design and purpose of tank hatches
Hatches are made from main pipelines DN 700 or 800 mm and a GOST 12820 flange, to which the ATK 24.200.02 plug of the corresponding nominal diameter is mounted. Design of the forming mating surfaces of the flanges in accordance with GOST 12815.
The first is intended for servicing an underground tank; a ladder is provided for descending and cleaning the tank cavity. Equipped with a lifting and turning device.
The second is used to remove the medium from the container. Designed for mounting a submersible pump into a tank body.
1.2.8 Design and purpose of process fittings
The fittings are made from hot-deformed seamless steel pipes according to GOST 8732 ( DN 20…300 mm) with GOST 12820 flanges of the corresponding diameter welded to them, the design of the forming mating surfaces of the flanges is in accordance with GOST 12815. These units provide product input/output, output of sediments, gases, ensuring product output into reserve tanks. Ensure normal circulation of process fluid in the container.
1.2.9 Design and purpose of instrumentation fittings
Fittings for installation of instrumentation are made from seamless hot-deformed steel pipes GOST 8732 ( DN 20…150 mm) with GOST 12820 flanges of the corresponding diameter welded to them, the design of the forming mating surfaces of the flanges is in accordance with GOST 12815. Technological plugs are mounted on the flanges in accordance with ATK 24.200.02 with bosses welded to them for subsequent connection of instrumentation devices - level meters, level alarms, pressure sensors and other measuring equipment.
1.2.10 Design and purpose of sling elements
Slinging elements of containers (slings, cross-beams, etc.) must ensure the ability of lifting devices to grip the container without deforming its body, components and strapping.
1.2.11 Manufacturing requirements
Containers must be manufactured in accordance with the requirements of this document, as well as GOST R 52630 and PB 03-584-03.
When manufacturing containers, a quality control system (input, operational and acceptance) must be used to ensure that work is performed in accordance with the requirements of the specified regulatory documents.
Before manufacturing containers and their components, it is necessary to carry out incoming inspection of basic and welding materials and semi-finished products. Welding materials must comply RD 03-613-03.
Welding equipment must be certified in accordance with the requirements RD 03-614-03.
Requirements for welding and quality of welded joints must comply GOST R 52630 and PB 03-584-03.
When manufacturing containers, welding technology certified in accordance with the requirements must be used GOST R 52630, RD 03-615-03.
Welding work must be performed by welders certified in accordance with the requirements PB 03-273-99, RD 03-495-02.
Welding work must be carried out according to the manufacturer’s instructions, approved in the prescribed manner.
Welding must be carried out after confirming the correct assembly and the absence (elimination) of defects on all surfaces to be welded.
All welding work in the manufacture of containers and their elements must be carried out at positive temperatures in enclosed spaces.
Quality control of welded joints must be carried out in accordance with the requirements of subsection 21.3 of this document.
The mechanical properties of welded joints must meet the following requirements:
- the tensile strength must not be lower than the minimum tensile strength of the base metal according to current standards or specifications for a given steel grade;
- the minimum value of the bending angle should be 100°, in the absence of cracks or tears with a length exceeding 20% of its width, but not more than 5 mm;
- the hardness of the weld metal of welded joints after welding low-carbon steel should be no more than 250 HV 10 (determination method according to GOST 2999); after welding low-alloy steel should be no more than 275 HV 10 (method of determination according to GOST 2999).
Impact bending tests of tank welded joints should be carried out on samples with a U-shaped notch along GOST 6996 . The impact strength value must be at least 30 J/cm 2 at the minimum operating temperature of the product.
Welded joints must have a smooth transition from the base metal to the weld metal without deposits or lack of fusion.
All container welds are subject to marking, which allows identification of the welder who performed these seams.
The mark must be applied at a distance of 20 to 50 mm from the edge of the weld with outside. If a seam is welded from the outside and inside by different welders, marks should be placed only on the outside side through a fraction: in the numerator the welder’s mark on the outside of the seam, in the denominator the welder’s mark from inside. If welded joints are performed by one welder, then it is permissible to place a mark near the plate or in another open area.
For longitudinal seams, the mark should be located at the beginning and end of the seam at a distance of 100 mm from the circumferential seam. On a shell with a longitudinal seam less than 400 mm long, one mark is allowed. For a circular seam, the stamp must be knocked out at the intersection of the circular seam with the longitudinal one and then every 2 m, but there must be at least two stamps on each seam. One mark may be placed on the circumferential seam of a container with a diameter of no more than 700 mm.
The place of branding must be enclosed in a clearly visible frame made with indelible paint.
By agreement with the customer, instead of marking welds, it is allowed to attach to the product passport a diagram of the location of the seams indicating the numbers of the welders' marks and the signature of the performers.
The distance between the edge of the welding seam of internal and external devices (parts) and the edge of the nearest body seam must be at least the wall thickness, but not less than 20 mm.
It is allowed to intersect the butt seams of the body with fillet welds for welding internal and external devices (supporting elements, etc.), provided that the entire overlapped section of the body seam and adjacent areas with a width of at least 50 mm are controlled by radiographic and ultrasonic methods.
The container body must be made of shells. Shells must be made with no more than two longitudinal seams. Shells should be made from sheets of the maximum possible length. Inserts are allowed with a width of at least 200 mm.
The longitudinal seams of adjacent shells must be offset relative to each other by an amount equal to three times the thickness of the thickest element, but not less than 100 mm between the axes of the seams.
Longitudinal welds of containers must be located outside the central angle of 140° of the lower part of the body in accordance with GOST R 52630.
The width of the shell sheet between the circumferential seams must be at least 800 mm, the width of the closing insert- not less than 400 mm.
After assembling and welding the shells, the tank body must meet the following requirements:
- length deviation no more than ±0.3% of the nominal length;
- deviation from straightness is no more than 2 mm over a length of 1 m, and the total deviation is no more than 0.2% of the length of the container;
- deviation of the internal diameter of the housing is allowed no more than ±1%.
The relative ovality “a” of the body should not exceed 1%. The value of relative ovality is determined by the formula:
Technical requirements for flanges of hatches and fittings must comply with GOST 28759.5 and GOST 12816.
Threaded connections should not have burrs or nicks. Breaking threads on fasteners is not allowed.
Tanks must be provided with elements for slinging. Sling devices must comply with the requirements GOST 13716 . The lifting capacity of each sling device must be no less than the force acting on the device with a minimum number of sling devices simultaneously involved in lifting.
The design and locations of sling devices must be established in the design documentation. The design and placement of sling devices must ensure that the sling ropes do not come into contact with the surface of the container during loading and unloading operations, in order to preserve the anti-corrosion coating.
On the container body, in a place accessible for inspection during operation, two terminals must be provided for connection to an external ground loop.
The angle of coverage of the container saddle support must be at least 120º.
When manufacturing heaters, the following conditions must be met:
- the distance between welded joints in coils of spiral, screw and other types must be at least 4 m. The length of the closing pipe at each end must be at least 500 mm, with the exception of the case of welding a branch pipe, fitting or outlet to the closing pipe;
When hot bending pipes with filler, no more than one welded joint is allowed on each turn, provided that the distance between the welded joints is at least 2 m.
- Requirements for protective coating
Underground tanks must have an external anti-corrosion coating applied at the factory.
At the customer's request, containers must have an internal anti-corrosion coating.
Anti-corrosion coating of internal surfaces must meet the following requirements:
- be resistant (oil, steam resistance) to stored products;
- be resistant to changes in the geometric parameters of the structure during operation;
- be resistant to loads resulting from daily temperature changes and temperature changes during operation;
- have strong adhesion to the metal surface;
- the surface of the coating must be uniform and easy to clean from the stored product before inspection;
- be continuous to provide a barrier effect;
- meet electrostatic safety requirements.
Before applying the anti-corrosion coating, all fasteners and connecting parts must be coated with a conservation lubricant or have protective caps.
The anti-corrosion coating must withstand environmental influences without peeling, cracking and loss of continuity during storage, transportation of the container and their subsequent operation.
The quality of incoming materials must be confirmed by certificates from the manufacturer.
- Reliability requirement
The equipment and means for measuring capacitance ensure a service life of at least 15 years in general. It is allowed to use equipment and measuring instruments with a service life of less than 15 years with their replacement during operation. Denomination The long service life of measuring instruments, pumping and other equipment supplied complete with containers is indicated in the passport of the manufacturer of this equipment.
1.5 Requirements for raw materials, supplies, purchased products
The container includes the use of measuring instruments, process equipment and shut-off and control valves of domestic and foreign production, which, according to technical characteristics, meet the safe conduct of technological process.
All technological equipment, measuring instruments and shut-off and control valves, have a Certificate of Conformity with the requirements of technical regulations and a Permit for Use issued by the Federal Service for Environmental, Technological and Nuclear Supervision, if another form of conformity assessment technical devices, used at a hazardous production facility, mandatory requirements for them are not established by technical regulations. All measuring instruments have a Certificate of Approval of the type of measuring instruments issued by the Federal Agency for Technical Regulation and Metrology.
The material of process equipment, measuring instruments, shut-off and control valves and pipelines is adopted taking into account the requirements of safety standards, climatic and operational conditions.
Containers must be made of carbon steel of ordinary quality or other grades of steel that are not inferior to those specified in terms of technological and strength characteristics.
The sling elements of the containers must provide the ability to be captured by lifting devices (slings, traverses, etc.).
The types and structural elements of the seams of welded joints must comply with GOST 5264. The places to be welded must be cleaned of dirt, oil, scale, and corrosion. Cracks, lack of penetration, local sagging, burn-throughs, melting of the base metal, unwelded craters, fistulas, porosity and slag inclusions are not allowed in the seams of welded joints.
The surface of metal parts of containers should not have cracks, flaws, or delaminations.
Depending on the properties of the substances stored in liquids, the requirements of the technological process, the location of installation and operation of the power supply, the requirements for occupational safety and explosion and fire safety, in each specific case the need to use thermal insulation is determined during the design. Thermal insulation pipelines must comply with the requirements of SNiP 2.04.14 or other regulatory documentation. Pipelines are subject to thermal insulation in the following cases:
If it is necessary to prevent and reduce heat loss (to maintain temperature, prevent condensation, the formation of ice hydrate or other plugs, etc.);
When the temperature of the pipeline wall is above 60°C, and at workplaces and in passages at temperatures above 45°C - to avoid burns;
If necessary, ensure normal temperature conditions in the room.
The choice of steel grades for fasteners of flange connections is carried out depending on the operating conditions.
Gasket materials for sealing flange connections are selected depending on operating conditions, current regulatory documentation, recommendations of specialized research organizations and are indicated in the design documentation.
The outer and inner surfaces of containers can be primed. Coating - primer according to GOST 9109 in two layers.
Apply the center of mass, slinging points, and grounding points to the container with bright paint PF-115 GOST 6465, different from the color of the device.
1.6 Delivery contents and documentation
The containers are supplied fully assembled. It is allowed to supply the container in parts or with elements removed for transportation, if this is specified in the design documentation and is determined by the transportation conditions.
Package Included:
A container fully equipped with products included in the complex;
Set of spare gaskets for flange and coupling connections;
A set of spare gaskets and sealing materials for installing measuring instruments (in accordance with the documentation for these instruments);
A set of spare parts, special tools and other devices, if specified in the design documentation;
The container is accompanied by technical and shipping documentation:
Passport in one copy;
Technical and shipping documentation for components (fittings, measuring instruments, process equipment and other products included in the complex);
Picking list;
Packing lists (for each shipping location) in 3 copies;
Installation marking diagram;
Manual.
1.7 Marking
Each container must be marked with:
Name or trademark of the manufacturer;
Name and designation;
Factory number;
Weight, kg;
Year of manufacture;
OTK stamp.
The metal markings must be preserved on the sheets and slabs accepted for the manufacture of shells and bottoms. If a sheet and slab are cut into pieces, the metal markings of the sheets and slabs must be transferred to each of them. The marking must contain the following information:
Steel grade (for two-layer steel - grade of the main and corrosion-resistant layers);
Heat or batch number;
Sheet number (for sheets with sheet-by-sheet tests and double-layer steel);
Technical control mark.
The marking must be located on the side of the sheet and plate that is not in contact with working environment, in the corner at a distance of 300 mm from the edges
1.8 Packaging
Containers must be delivered to the customer in dimensional units without packaging.
All openings, pipes, fittings must be closed with plugs or plugs to ensure protection from contamination and damage to the internal cavity and machining pipes
All removable, replaceable parts and assemblies of the container must be packed in wooden boxes.
When sent in boxes, fasteners must be preserved in accordance with the manufacturer's instructions, and the studs (bolts) of flange connections must be additionally packed in wrapping or waxed paper.
Technical and shipping documentation (hereinafter referred to as TD) attached to the container should be placed in a waterproof material or material with a polyethylene coating and placed in a sealed bag made of polyethylene film with a thickness of at least 150 microns. The seams of the bag must be welded (sealed). The bag must additionally be wrapped in waterproof paper or plastic film, the edges of which must be welded (sealed).
Each package must have its own packing list, which is placed in a bag made of waterproof or polyethylene-coated material. The package must additionally be placed in waterproof paper and placed in a special pocket made in accordance with the TD. The pocket should be attached near the load marking.
The second copy of the packing list or picking list, together with the TD, must be packed directly into the container.
Preservation of containers must be carried out according to the technology of the manufacturer, taking into account the requirements of this document, GOST 9.014 and conditions of transportation and storage.
When choosing means of temporary anti-corrosion protection, containers belong to group II according to GOST 9.014.
Temporary anti-corrosion protection of version VZ-4 according to GOST 9.014.
Conservation must provide protection against corrosion during transportation, storage and installation for 24 months from the date of shipment of the container from the manufacturer.
In case of storage for more than two years or detection of defects in temporary anti-corrosion protection during control inspections during storage, it is necessary to carry out re-preservation in accordance with GOST 9.014.
Preservation methods and materials used for this must ensure the possibility of re-preserving the assembled container and transported units (assemblies) without disassembling them.
Depreservation should be carried out in accordance with GOST 9.014. GOST 12.1.010
The electrical equipment used on the tanks (pump, level gauge, etc.) must be explosion-proof. Level and type of explosion protection- not lower than 1 Exed IIAT3 according to GOST R 51330.1.
- 2Safety requirements for operation
Operation of containers with parameters beyond the limits specified in the TD is not permitted.
After installing the tanks at the site of operation, grounding must be carried out and lightning protection must be provided in accordance with the requirements of RD-91.020.00-KTN-276-07.
Only qualified personnel who have been instructed and trained should be allowed to operate containers. safe methods and methods of servicing this equipment in accordance with the requirements of OR-03.180.00-KTN-222-09.
Repair work on tanks is carried out in accordance with the requirements of RD-13.110.00-KTN-319-09.
By doing repair work A non-sparking tool must be used.
When filling the container:
- it is necessary to ensure that the fittings on the drainage line are closed;
- It is prohibited to fill and empty the container when the breathing valve is inoperative;
- Filling should be stopped if cracks, bulges, bends, gaps, leaks or sweating in welds, or leaks are detected in the container elements.
The illumination of workplaces of controls and monitoring devices during the operation of tanks must comply with the requirements SNiP 23-05-95 *.
Containers should not be sources of noise, vibration, or ultrasonic vibrations.
- Safety requirements for transportation and storage
Safety requirements for loading and unloading operations must comply with the requirements GOST 12.3.009.
Slinging of containers must be carried out in accordance with the slinging diagram, which is given on the assembly drawing.
The operating manual must specify the requirements to ensure safety during transportation and storage of containers:
- transportation and storage of containers must be carried out taking into account all safety requirements provided by the container designer;
- after the expiration of the established storage period, the container must be re-preserved; in the case of planned use for its intended purpose - technical diagnostics and testing for performance and tightness;
- transportation of containers must be carried out in accordance with the rules in force for specific types of transport;
- loading, unloading, transportation and storage of containers must be carried out by certified personnel in compliance with safety requirements when performing these works.
Materials and substances used for packaging and preservation must be safe for people and the environment.
Installation and fastening of the container on the vehicle must exclude the possibility of mechanical damage and contamination of the internal surfaces of the containers and the ends of the pipes processed for welding to the pipeline.
2.4 Organizational security measures
The set of organizational measures to ensure safety includes the following:
Persons who have appropriate training, have been instructed and have passed a safety exam are allowed to work on the construction, installation and operation of equipment and structures;
When placing work areas, workplaces, passages for construction vehicles and Vehicle, passages for people should be fenced off in dangerous areas;
The organization of work areas and workplaces must ensure the safety of workers at all stages of work; the technological sequence of some production operations should not be a source of danger when performing subsequent ones;
Construction work and installation of equipment must be carried out in compliance with the requirements of SNiP 12-03 "Occupational safety in construction. Part 1. General requirements", SNiP 12-04 "Occupational safety in construction. Part 2. Construction production";
When carrying out hot work, it is necessary to be guided by the requirements of RD 09-364 “Standard instructions for organizing the safe conduct of hot work at explosive and fire-hazardous objects” and “Standard instructions for organizing the safe conduct of gas-hazardous work” dated 02.20.85, GOST 12.1.004 “SSBT. Fire safety. General requirements";
When testing, installing and operating pipeline fittings, the requirements of GOST R 53672 must be met;
When carrying out anti-corrosion work, the requirements of GOST 12.3.016 “SSBT. Construction. Anti-corrosion works. Safety requirements";
8. MANUFACTURER WARRANTY
The manufacturer guarantees the compliance of EP containers with the requirements of this standard subject to the conditions of transportation, storage, installation and operation.
The warranty period is at least 12 months. from the date of commissioning of the tank, but not more than 18 months. after shipment from the manufacturer.
The warranty does not apply:
For components that have their own warranty period;
For replaceable parts of devices and fittings that require periodic replacement or grinding in, the service life of which depends on operating conditions.
The manufacturer reserves the right to monitor the operating conditions of the unit during the warranty period.
The customer is obliged, at the request of the container manufacturer, to provide instrument readings and other indicators characterizing the operation of the container during the warranty period.
