What are the factors of low temperature non-refrigeration in high and low temperature test chamber

When the compressor of the low-temperature equipment in the high-low temperature test chamber pressurizes, the water vapor in the air is compressed into water, which is injected into the pipeline to cause ice blocking. After the refrigeration evaporator is damaged, it will be turned on for a long time to bring the water molecules in the freezing room, together with the water in the air, into the compressor. The process tube of the high and low temperature test chamber is not sealed after opening, and there is no timely repair. 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 is also a compressor that is not sealed and placed for a long time, and it is used on the frost without drying, which will also cause ice blockage. Excessive refrigerant moisture will cause ice blockage due to charging, and the drying filter will lose its dry water absorption function due to aging and failure.

High and low temperature test chambers can prevent leakage under pressure by means of pressure blocking test method, which can completely eliminate the moisture in the air intake, and it will be indispensable to the outside. The following introduces several feasible and effective methods.

The price of the high and low temperature test box is to refrigerate an efficient drying filter, then find an iron can with a sealed cover, drill a 6cm round hole in the bottom of the box, weld a copper tube at the round hole, about 200 grams made Put dry calcium chloride in thick nylon socks or nylon cloth bag, put it in an iron can and close tightly. When not in use, plug the two nozzles tightly to prevent the entry of moist air. When in use, remove the plug and connect the exhaust port to the compressor intake pipe. After use, be sure to seal the two pipes.

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