​Causes and solutions for easy clogging of refrigerating system in constant temperature humidity test chamber

1. Causes for easy clogging of refrigerating system in constant temperature humidity test chamber.

Dirty clog

When the compressor is worn and there is dirt in the refrigeration system, it is very easy for the dirt to be blocked in the capillary or filter, which is called dirty plugging. Dirty plugging is caused by impurities in the refrigeration system (copper oxide chip welding slag). When it circulates with the refrigerant, it will be blocked in the capillary or filter.

Solution for easy clogging of refrigerating system in constant temperature humidity test chamber.

Haotian has the solution of the dirty clog:Remove the capillary tube, filter, condenser, evaporator, replace the molecular sieve in capillary tube and filter by gas welding, clean the condenser and evaporator, dry them, vacuum them, reweld them and fill them with refrigerant.

2. The reason why the refrigeration system of constant temperature and humidity cabinet is easy to ice clog.

Ice clog

The ice plugging is caused by moisture entering the refrigeration system of the equipment. Due to its own moisture content, combined with the maintenance or fluoride extraction process requirements are not strict, so that moisture and air into the system. Under the high temperature and pressure of the compressor, the refrigerant changes from liquid to gas, so that moisture circulates with the refrigeration into the narrow and long capillaries. When the water content per kg exceeds 20mg, the filter water is saturated and can’t be filtered out. As the temperature at the outlet of the capillary tube reaches 0℃, the water is decomposed from the refrigerant and formed into ice and forming ice plug. In short, the system configuration is unreasonable, the throttle mechanism is inappropriate, the dryer does not work, too much water in the system will be like this.

Solution for the refrigeration system of constant temperature and humidity test chamber is easy to be blocked by ice: 

Try to use our Haotian upgraded constant temperature and humidity test chamber, it adopts cold balance technology, which can not only eliminate blocking problem, but also save energy and environmental protection.