Rotary vane vacuum pump in variable frequency air conditioning


Application of vane vacuum pump in variable frequency air conditioning
I believe that when it comes to variable frequency air conditioning, the first thing you think of is its energy saving characteristics, and there is a process before installation of variable frequency air conditioning, that is to use rotary vacuum pump to vacuum, which is often ignored by everyone. So, does frequency conversion air conditioning need to vacuum when installing? What is the necessary effect that pumping vacuum is having to frequency conversion air conditioning itself?
Today, small series to introduce the rotary vacuum pump vacuum role.
1. Does the rotary vane vacuum pump need to be used to vacuum the air conditioner before installation?
Vacuum pumping by rotary vane vacuum pump is an indispensable procedure in the installation of fvac and the most critical step to ensure high performance. But now the installation team's professional quality uneven, can not guarantee that everyone will consciously operate this process. The normal vacuum pumping time should be 15-20 minutes to ensure that the air in the system is completely removed. Otherwise, the overall performance of the air conditioner will be easily affected, resulting in poor cooling and heating effect and high energy consumption.
Second, the rotary plate vacuum pump has the function of vacuuming
1. Remove non-condensable gas in the system: the presence of non-condensable gas will increase the condensing pressure and exhaust temperature of the system, which will affect the refrigeration effect; It may also lead to carbonization of lubricating oil at high temperature, which may endanger the normal operation of the compressor and even burn out the motor of the compressor.
2. Remove water in the system: water is the biggest killer in the refrigeration system (especially freon system in the vapor compression refrigeration cycle), first of all, lubricating oil and water action will generate acid, will corrode the system, at the same time will cause "copper plating" phenomenon, damage the compressor; At the same time, water will cause expansion valve orifice or capillary ice, appear "ice block."

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