How to deal with refrigerant leakage in the constant temperature and humidity test chamber?

First, observe the pressure gauge on the back of the constant temperature and humidity test chamber to see if the pressure is within the normal range. If it is lower than the normal value, it means that the refrigerant is leaking. The refrigeration system of the high and low temperature test box must be leak-tested. Enter high-pressure nitrogen into the tube and use a combination of leak detector and soapy water to check for leaks. Usually there is only one leak, and sometimes there are multiple leaks, which are relatively rare.

After finding the leak, use oxygen welding to weld and seal the leak, and then fill the refrigeration system with nitrogen, and hold the pressure for 48 hours. During the pressure holding process, it is found that the pointer of the pressure gauge has not changed. Fill the system with environmentally friendly refrigerants R404 and R23, and the refrigeration system can resume normal operation. The BYH series of constant temperature and humidity test chamber and standard constant temperature and humidity test chambers produced by Shanghai Juyin are cooled by air-cooled compressors.

The working principle of the constant temperature and humidity test chamber is the same as the principle of air conditioning and refrigeration. In the refrigeration process, refrigerant is used for refrigeration. Once the refrigerant leaks, the test chamber will stop running, and the low temperature test cannot be performed and the humidity is less than 85%RH. Damp heat test.