Whether explosion-proof fan is required for ventilation of air compressor room
Whether explosion-proof fan is required for ventilation of air compressor room
this question cannot be answered across the line whether it is necessary or not. The key is to see what kind of environment the computer room is in.
First of all, the air compressor room of most ordinary hospitals does not need to be specially equipped with explosion-proof fans. However, if there is a gas or dust that is easy to burn around the engine room, it must be installed.
Why are general hospital rooms not needed?
Because of the explosion, the most feared thing is that three things are put together, namely combustibles, oxygen and ignition source. Traditional air compressors use oil to lubricate the internal parts of the machine. The oil will deteriorate over time and produce carbon deposits. Carbon deposits themselves are combustible things. Coupled with the high temperature of the compressor, it is possible to ignite the carbon deposits. This is one of the main reasons for the explosion of the air compressor.
But now many hospitals have begun to lubricate air compressors with water to do this job. Its reason is particularly simple, that is, water is used instead of oil to lubricate and cool the parts inside the machine. The water forms a layer of water film on the surface of the parts, which makes the parts turn smoothly and takes away the heat generated by friction. Because the whole process uses water and does not touch oil at all, it will not produce flammable things such as carbon deposits from the source. The compressed air is also completely free of oil and clean. In other words, after the air compressor is lubricated with water, the biggest explosion hazard in the machine room is directly eliminated.
Under what circumstances do you still need explosion-proof fans?
If the environment where the air compressor room is located has problems, such as an area where flammable and explosive materials are stored next to it, or combustible dust and gas are already floating in the air, explosion-proof measures need to be taken no matter what type of air compressor is used. At this time, the ventilation fan must be explosion-proof, that is, the motor and shell of the fan are specially designed, and even if sparks are generated inside, they will not be transmitted to the outside to ignite the surrounding combustible substances. At the same time, it is also necessary to cooperate with the installation of combustible gas detection and alarm device, once the concentration of combustible gas in the air exceeds the standard, it will automatically alarm or even automatically start the exhaust.
The role of ventilation itself.
Whether explosion-proof is required or not, the air compressor room must be well ventilated. Because the compressor will generate a lot of heat when it is working, if the heat is not dissipated, the temperature of the machine room will become higher and higher, which will not only affect the life of the equipment, but also make the moisture in the air more easily condensed and affect the quality of the output air. In particular, although there is no problem of carbon deposition in oil, the heat generated by the operation of the machine also needs to be discharged in time to keep the air circulation in the machine room.
So to summarize briefly
the air compressor room of ordinary hospitals, especially those that have already used water to lubricate the air compressor, because the combustion risk caused by oil is removed from the root, it is generally not necessary to set up explosion-proof fans, and it is enough to do a good job of ordinary ventilation and heat dissipation. However, if the computer room is in a special environment with flammable and explosive substances, it is necessary to set up explosion-proof fans, and at the same time, a series of safety measures such as gas monitoring and anti-static should be done. The specific choice should be judged according to the actual environment of the computer room and relevant safety regulations.
