Causes of ice formation and ice blockage in the constant temperature and humidity test chamber

Why does the phenomenon of icing and ice blocking occur in the constant temperature and humidity test chamber during the test?

1. When the box door is opened during the test, icing will occur in the working room.

2. Excessive refrigerant moisture, charging will cause ice blockage.

3. The drying filter is aging and fails, and it loses its proper function of drying and absorbing water.

4. When the compressor leaks under pressure, the water vapor in the air is compressed into water, which is injected into the pipeline to cause ice blockage.

5. After the refrigeration evaporator of the constant temperature and humidity test chamber is damaged, the water molecules in the freezing (storage) room, together with the water vapor in the air, will be brought into the compressor together for a long time.

6. The process tube is not sealed after being opened, and 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.

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