After a long period of use, the constant temperature and humidity test box often encounters the phenomenon of ice blockage. What is the specific cause? The following is a small series for you to analyze:
Reasons for constant temperature and humidity test box ice block:
1. When the low temperature equipment compressor is pressurized and leak tested, the water vapor in the air is condensed into water droplets, which are injected into the pipeline to cause ice blockage;
2. After the refrigeration evaporator is damaged, the water molecules in the frozen (storage) chamber are brought into the compressor together with the water vapor in the air for a long time (the negative pressure is generated in the generator when the machine is turned on, and the atmospheric pressure is Bring water molecules from humid air into the machine);
3. The constant temperature and humidity test box process tube is not sealed after opening, and it is not repaired in time. This long-term shelving of frost, coupled with the occasional start-up, will bring moisture from the air into the machine. There are also unsealed and long-term compressors that can be replaced by frost without drying, which can also cause ice blockage;
4. The refrigerant has too much moisture, and the filling will cause ice blockage;
5. Dry filter aging failure, losing the proper function of drying and absorbing water
PS: Two of the five above are the most prominent.
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