Causes and prevention of ice blockage in test chamber
The high and low temperature test chamber mainly tests and determines the parameters and performance of electronic devices, materials and other products after the temperature environment changes at high and low temperatures. During the test, what caused ice blockage in the high and low temperature test chamber? Causes of ice blockage in the test chamber and prevention of the national free service hotline
1. When the compressor of the low-temperature equipment leaks under pressure, the water vapor in the air is compressed into water, which is injected into the pipeline to cause ice blockage.
2. After the refrigeration evaporator is damaged, the water molecules in the freezing (storage) room and the water vapor in the air will be brought into the compressor together with the long-term startup (the negative pressure will be generated in the generator when the startup, the atmospheric pressure will be wet Water molecules in the air are carried into the machine).
3. The process tube of the high and low temperature machine is not sealed after opening, and it has not been repaired in time. This long-term shelving of frost, coupled with the occasional power on, will bring moisture from the air into the machine from outside the nozzle. There are also compressors that are unsealed and placed for a long period of time. If they are replaced with frost without drying, they will also cause ice blockage.
4. Too much refrigerant moisture, charging will cause ice blockage.
5. The drying filter is aging and fails and loses its proper function of drying and absorbing water. Among the above 5 items, the two items 1 and 2 are the most prominent.
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