Fan maintenance. Ventilation system maintenance

Although the fan does not require special prevention, during its use it is necessary not to forget about the operating rules. Maintaining cleanliness and monitoring the load, which should not exceed the power characteristics, will give the equipment a long life without breakdowns. However, if a problem arises, our company’s specialists will carry out high-quality repairs and fan maintenance.

Regular maintenance and quick repairs

If the fan is damaged, the first thing to do is disconnect it from the electrical network. Next you need to make sure that there are no foreign objects inside. If the fan does not work after turning it back on, it is better to call specialists for help.

Repair and maintenance of fans after work area If a foreign substance is found, it will be carried out by our employees efficiently and in a short time. They will assemble and disassemble the equipment, replace parts that are out of order, balance and, if necessary, paint the fan.

For most fan models, the only regular maintenance is cleaning. We will carry out these works, which are recommended to be carried out 2 times a year. This will prevent imbalance and equipment breakdowns.

What kind of work do we carry out?

The most popular fan repair job is balancing the impellers. The problem may occur after transportation, long-term storage or as a result of the adhesion of dirt and dust. Signs that balancing needs to be done are increased vibration and unusual noise during operation. Our employees will balance and service the fan using certified instruments. The cost of the service depends on the equipment model and the location where it is located.

Our specialists also carry out other types of work. Here is a short list of them:

  • Estimation of cost and volume necessary work with a specialist visiting the client;
  • Installation and dismantling of equipment;
  • Turning, milling, welding works;
  • Transportation of any type of equipment;
  • Installing and removing the fan impeller;
  • Measures to regulate belt tension;
  • Troubleshooting the electric motor or replacing it completely;
  • Other minor work.

Contact us and your equipment will be up and running very quickly! And regular maintenance will ensure it never breaks down.

Operation of installations supply ventilation includes this necessary stage, such as prevention and maintenance. Supply ventilation installations are important and necessary systems that serve the life processes of people or production processes at the enterprise. A ventilation system is a complex of ventilation installations or devices natural ventilation who serve separate room or the entire building as a whole. A ventilation unit is a set of ventilation elements equipped with equipment for moving air, in particular mechanical ones such as fans. Ventilation systems, like all others network engineering, require regular preventive maintenance and qualified maintenance.

At facilities equipped with large air ventilation systems, calendar plans are drawn up for scheduled preventive maintenance (PPR) of ventilation equipment and cleaning of ventilation system air ducts. Ventilation maintenance plans are drawn up in accordance with regulations and regulatory documents regulating the frequency of maintenance and safe operation ventilation systems at the enterprise, their good condition and Maintenance air ventilation systems. At large enterprises, a person is appointed responsible for the condition of the ventilation systems at the enterprise; the main responsibilities of the person in charge include drawing up schedules for scheduled preventative repairs of ventilation, monitoring the implementation of schedules for scheduled preventative repairs and ventilation maintenance.

Enterprises keep logs of scheduled preventive maintenance of ventilation and inspections of ventilation equipment, in which the results of inspections of ventilation and air conditioning systems, as well as measures to eliminate detected problems and deviations in the operation of ventilation system equipment should be entered. Keeping logs is necessary to track the current state of the ventilation system over time.

Ventilation maintenance activities

Service maintenance of the supply and exhaust ventilation unit consists of the following steps:

1. Monthly ventilation maintenance work:

General inspection and control of supply ventilation equipment

identification of mechanical damage, sources of noise and vibration in supply ventilation systems

checking the integrity of connecting pipelines and air ducts of supply ventilation systems

2. Quarterly workventilation maintenance:

Inspecting the condition of the air filter and fan of ventilation systems

replacement of air filters in supply ventilation systems

inspection of the condition of heat exchangers, if necessary, cleaning their surfaces in ventilation systems

3. Works,for maintenance of ventilation systems, produced once every six months:

Checking bolted, welded and joints in supply ventilation systems

inspection of flexible fan inserts in ventilation systems

checking the fan mounting on the foundation, bracket, or wall in supply ventilation systems

checking the condition of the impeller and fan motor in ventilation systems

checking the vibration level in supply ventilation systems

checking the condition of electric motor bearings in ventilation systems

prevention of automation systems in ventilation systems

inspection and testing of water and air valves in supply ventilation systems

inspection and quality control of grounding of electrical equipment in ventilation systems

Air supply service ventilation unit similarly service air handling unit ventilation and supply and exhaust systems.

Central air conditioner service

A central air conditioner is a unit that is used to cool air in large office buildings, swimming pools, industrial enterprises and so on. objects. A modern central air conditioner is a set of standard modules. Each module performs its specific function:

Central air conditioner cooling section

The cooling section of the central air conditioner is a freon or water heat exchanger. The refrigerant can be a mixture of water and glycol supplied from the chiller, or freon supplied from an external compressor-condensing unit.

Central air conditioner heating section

The air heating section of a central air conditioner uses water or electric heaters. A water heater is a heat exchanger to which hot water from boiler equipment or central heating systems.

Fan section of central air conditioner

Central air conditioner fans are designed to draw air and supply it to the rooms served through the central air conditioner. Air conditioners use centrifugal (radial) fans of various designs.

Central air conditioner filtration section

The filtration section of a central air conditioner is designed to clean the air passing through the central air conditioner. As the air passes through this central air conditioning system, the air is cleared of smoke and dust.

If you still have questions about the maintenance of ventilation systems, we will be happy to answer them in the appropriate section of our forum.

Good ventilation is the foundation of a healthy microclimate. Having spent once on the purchase and installation of supply and exhaust ventilation, you can forget about the problems of poor-quality air exchange for a long time. For a long time, but not forever. No matter how reliable and “smart” the air exchange system in your home is, maintenance of ventilation systems is required from time to time.

What is the danger?

During operation, air duct channels, fan blades and other surfaces in contact with the exhaust air become covered with a layer of grease and dust, and condensation also accumulates in the ventilation. Such plaque not only worsens the aerodynamic characteristics of the network and requires additional fan power, but is also an ideal environment for the proliferation of harmful microorganisms, which poses a potential threat to the health, and sometimes even the life, of people in the room. In addition, the dust-grease mixture is a fire hazard.

This problem is too specific to try to deal with it one-on-one. Therefore, it is better to resort to the services of professionals offering ventilation and air conditioning service.

Stages of repair and maintenance work

Untimely cleaning of ventilation can disrupt the entire operation of the air exchange system, reducing the design capacity of the equipment to zero, and even lead to its premature failure and subsequent repair of ventilation systems. But before cleaning the ventilation, it is necessary to inspect it and determine the nature of the contamination.
So, maintenance of ventilation systems comes down to the following operations.

Ventilation inspection and contamination diagnostics

If for any reason there is a suspicion that the air exchange in the room has deteriorated significantly, you need to pay attention directly to the ventilation and air conditioning system. At home, unfortunately, the entire assessment of ventilation systems comes down to an external inspection of the visible parts of the air exchange system. As a last resort, you can remove the ventilation duct grille and use a mirror to look inside the air duct route. But this is, perhaps, the maximum that you can do on your own. However, even such a cursory inspection may lead to the conclusion that urgent cleaning and disinfection of the ventilation is necessary.

The reason for a decrease in ventilation performance or its complete failure is not always so obvious, and then you have to resort to the services of third-party organizations. Specialized companies, which have at their disposal the entire necessary set of tools and devices (even mini-robots with built-in video cameras), will conduct a complete diagnosis of the ventilation network, issue a certificate confirming its condition, and give recommendations for the repair and maintenance of ventilation systems.

Cleaning ventilation systems

Depending on the reason for the failure of the ventilation network and the nature of its contamination, the method of cleaning the ventilation is selected. In this case, cleaning of ventilation systems is carried out without dismantling the network of air ducts and is possible mechanically and chemically. The choice of one or another cleaning method is also influenced by design ventilation ducts - a rigid or flexible air duct for ventilation.

The chemical method is effective when it is necessary to clean and disinfect ventilation systems contaminated primarily with fatty deposits, which is important for air ducts in kitchens, cafes, restaurants and similar premises. A chemically active substance in the form of an aerosol is introduced into the air duct and reacts with fatty deposits, modifying it, as a result of which it loses its adhesive properties and, together with the air flow, is removed from the ventilation system. As disadvantages of this technology, it should be noted that the aerosol can “fight” with an insignificant thickness of plaque, and in addition, before launching a chemical reagent into the air duct network, it is necessary to ensure its tightness.

Alternative chemical method- cleaning of ventilation and air conditioning systems using dry ice granules (dry ice blasting technology). Cleaning of ventilation occurs on the principle of bombarding fat deposits with dry ice crystals. Where the crystal hits the surface of the dust and grease deposit, a micro-explosion is formed, loosening the deposit layer. The loosened mass is picked up by the air flow created by an additional pressure or vacuum industrial fan, designed specifically for ventilation maintenance and repair, and removed from the air duct system. The advantage of this method over the chemical aerosol method is that the ventilation air and the air duct itself are cleaned without the risk of reagent leakage outside the ventilation network.

Mechanical ventilation maintenance

Cleaning and maintenance of ventilation is carried out using hydromechanical and hydropneumatic machines working in conjunction with vacuum units. Such maintenance of ventilation and air conditioning boils down to the fact that a self-propelled machine with an actuator in the form of brushes is placed in the cross-section of the air duct. Connected to the outlet section of the ventilation network Vacuum pump, creating sufficient air pressure. The separation of plaque from the internal walls of the air duct occurs purely mechanically with the help of rotating brushes, while the separated plaque is immediately picked up by air flows and removed from the ventilation ducts into special filters of the vacuum machine. And although this method is one of the most complex in terms of technical implementation, it gives an effective result even with the most heavy pollution channels.

Disinfection of ventilation systems

Ventilation diagnostics and cleaning services would be incomplete without treating the ventilation system with disinfectants. Mechanical cleaning It will only remove the accumulated dirt and plaque. But how to clean the ventilation from microorganisms, dust mites and pathogenic bacteria?

A contaminated air duct is an ideal environment for the proliferation of the above-mentioned microorganisms: temperature - 20...45°C, optimal humidity and the complete absence of ultraviolet radiation, so disinfection of ventilation and air conditioning systems is a mandatory and periodic procedure. Disinfection of ventilation is not only about disinfection ventilation ducts, but also the treatment of internal units of air conditioners and air duct filters.

Powdery masses or liquids based on activated hydrogen peroxide, peracetic acid and other reagents are used as disinfectants. When choosing a particular antiseptic substance, it is necessary to take into account not only the nature of contamination of the air ducts, but also the purpose of the room itself. Some remedies are good for production premises, but are prohibited for disinfecting schools, others are suitable only for kitchens, etc.

Often specialized companies offer full list services for maintenance of ventilation and air conditioning systems: from diagnostics to cleaning, disinfection and provision of a certificate of completion of work.

Entrust ventilation maintenance and repair to professionals, and enjoy clean air yourself!

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