It is also very important to maintain the cryogenic chillers regularly, and the cooling system of the cryogenic chillers is also very important. The following is a brief introduction of some low-temperature chillers refrigeration system fault tips for your reference!
1, Pressure should be high, exhaust should be exhausted. There may be heat dissipation problems.
2, Double the pressure, refrigerant loss, otherwise the system shut down.
When both high and low pressures are low, there are two possibilities:
The main results are as follows: (1) when the system is blocked, the clogged part will produce throttling, and there will be obvious temperature difference in the throttling part, so the problem can be found manually.
(2) Refrigerant leakage, resulting in lack of refrigerant. This is more common. At this point, a cryogenic cooler detector must be used to find the leaking parts and repair them.
3, Low pressure, high pressure, low pressure, replace compressor.
When the low pressure of the low temperature water cooler system is higher than normal and the high pressure is lower than normal, the cooling effect of the cold water cooler will never reach the normal low temperature water cooler effect when the low temperature water cooler pressure gauge is used to detect the low pressure of the low temperature water cooler system. The reason is likely to be low-temperature water cooler pump wear, resulting in power decline. At this point, it is often necessary to replace the compressor to solve this problem.
4, When there is water vapor in the meter shaker system, it must be evacuated more thoroughly.
When the cryogenic refrigeration system works, if the meter hands keep shaking, the system will have moisture. In order to solve this problem, it is usually necessary to pump the vacuum again. Pump time must not be less than 15 minutes. If necessary, replace the dry bottle to completely drain the water from the system.