Multi-evaporator hot defrosting direct-cooling refrigerating system

Abstract

The invention relates to a multi-evaporator hot defrosting direct-cooling refrigerating system which comprises a compressor, a first pipeline, a condenser, a first filter, a capillary tube, a first evaporator, an air-liquid separator, a second evaporator, a liquid storage device, a second pipeline and a third pipeline. The air outlet end of the compressor is connected with the first pipeline, the condenser, the first filter, the capillary tube, the first evaporator, the gas-liquid separator, the second evaporator and the liquid storage device are sequentially mounted on the first pipeline from the gas inlet end, the air outlet end of the first pipeline is connected to the air inlet end of the compressor, the air outlet end of the compressor and the air inlet end of the first evaporator are connected with the second pipeline, and the third pipeline is connected and mounted between the air inlet end of the compressor and the air-liquid separator. According to the multi-evaporator hot defrosting direct-cooling refrigerating system, the hot defrosting effect is good, the heat utilization rate of the compressor is high, and the double-evaporator refrigerating system can be independently and separately used for defrosting.

Description

technical field [0001] The invention belongs to the related technical field of refrigeration and defrosting systems, and in particular relates to a multi-evaporator thermal defrosting and direct cooling refrigeration system. Background technique [0002] In the refrigeration system, after a long time of operation, the evaporator will produce a large amount of frost, and the compressor will also generate a large amount of heat. In order to use this part of heat, the compressor is usually connected to the The evaporators are connected together, and the heat generated by the compressor is used to remove the frost inside the evaporator. Thermal defrosting in the existing industry requires the high-temperature and high-pressure refrigerant vapor compressed by the compressor to pass through the entire low-temperature pipeline, which will cause waste of existing heat, and then make the defrosting effect of the evaporator not obvious; most of the equipment in the industry uses Most...

AI Technical Summary

Problems solved by technology

Thermal defrosting in the existing industry requires the high-temperature and high-pressure refrigerant vapor compressed by the compressor to pass through the entire low-temperature pipeline, which will cause waste of existing heat, and then make the defrosting effect of the evaporator not obvious; most of the equipment in the industry uses Most of them are refrigeration systems with a single evaporator, and for a single evaporator thermal defrosting system, all indoor frozen storage needs to be transferred during defrosting, which wastes a lot of manpower and material resources. A liquid reservoir with a large volume is arranged at the end of the device, which is prone to problems such as compressor liquid shock during defrosting

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