How to prevent the ice blocking phenomenon of high and low temperature test chamber

The high and low temperature test chamber has the function of simulating the law of atmospheric environmental temperature changes. Mainly aimed at the adaptability test of electrical, electronic products and their components and other materials in the process of transportation and use in the high and low temperature comprehensive environment. Used for product design, improvement, identification and inspection. I will encounter the phenomenon of ice blocking in the high and low temperature test chamber during use. How to prevent this phenomenon?

   In the pressurization test leak, completely remove the moisture in the intake part of the high and low temperature test chamber. Rejecting moisture is the key to preventing ice blockage. An effective method is introduced below for reference.

Make a high-efficiency filter drier: Find an iron can with a sealed lid, drill 6mm round holes at the bottom of the chamber, and weld about 200 grams of dry calcium chloride at the round holes (you can also see the effective volume of the iron can) (optional Large pieces) Put them in thick nylon stockings or nylon bags. When putting them in a tin can, unplug the plug and connect the exhaust port and the air inlet pipe of the compressor with a hose. After use, the two pipes must be closed. mouth.