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This paper analyzes the reason of the refrigerator compressor frosted

Release date:2016-03-22 11:53:54

Refrigerator compressor frost will not only reduce the service life of the compressor, refrigeration effect will decrease (refrigerant). So what are causes of the refrigerator compressor frosted?

1, filled volume of the refrigerant is too much, occupy the interior of the condenser volume and make the condensing pressure increase, more liquid into the evaporator. Fluid in the evaporator can't completely vaporized, with refrigerant compressor suction gas liquid. So, back to the gas pipe temperature drop, but the evaporation temperature did not change due to pressure did not drop, superheating temperature decreases. Without even turning down the expansion valve improved significantly.

2, spend big expansion valve to open. Due to the heat element binding too loose, contact with the muffler area is small, or insulating materials used for thermal components not taping and offset location error, etc., the temperature measurement is not accurate, temperature-sensing component, close to the ambient temperature, expansion valve opening degree increased, leading to excess amount of feed liquid.

3, filled volume of the refrigerant is insufficient, will from evaporator knot into the compressor;

4, due to external causes lack of refrigerant in the evaporator evaporation does not evaporate even, at this time cause severe frost, even cause wet compression. Such as lack of return air exhaust temperature is low


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