The relevant knowledge and answer of the high and low temperature test chamber is a series of popular science articles compiled from the network to collect the questions from major customers. The core of today's question and answer is “maintenance and maintenance of high and low temperature test box compressorsâ€. help. Not much to say, the following directly into the body:
1. Q: What is the meaning of pressure before separation?
A: The pressure before separation is the pressure of the oil and gas mixture after the main unit is compressed.
2, Q: Hello, how should the oil circuit be cleaned, how to repair and clean the machine head?
Answer: The oil circuit can use special cleaning agent (carbon cleaning agent), and the main professional maintenance personnel will carry out maintenance service.
3. Q: In the recent operation of our high and low temperature test chamber, the exhaust pressure of the unit has continued to rise. The 0.75 machine has reached 0.8-0.9MPa but can be unloaded. What is going on? After adjusting the pressure switch. It is repeated for a while.
A: From the analysis of the machine, the pressure switch setting of the compressor drifts. By adjusting, the drift under vibration is a problem with the locking of the pressure switch. Replacement of the device can be solved.
4. Q: Please elaborate on the cold coal, the less, the impact on the cooling capacity.
Answer: The amount of refrigerant is not enough, so that the evaporation pressure of the high and low temperature test chamber can not reach the specified pressure. The machine runs intermittently, the surface of the compressor is frosted, and the pressure dew point cannot reach the required temperature. If the amount of refrigerant exceeds the specified value, the compressor load is large.
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