A Refrigeration System Preventing Liquid Hammer

Abstract

The invention provides a refrigeration system for preventing liquid hammer, which is characterized in that: the exhaust port of the refrigeration compressor communicates with the air inlet of the oil separator, and the air outlet of the oil separator communicates with the condenser with two independent chambers The air inlet of the condenser is connected, the liquid outlet of the condenser is connected with the liquid inlet of the liquid receiver, the liquid outlet of the liquid receiver is connected with the liquid inlet of the gas-liquid separator, and the liquid outlet of the gas-liquid separator is connected with the evaporation The liquid inlet of the evaporator is connected with the inlet of the gas-liquid separator, the gas outlet of the gas-liquid separator is connected with the suction port of the refrigeration compressor; the water outlet of the evaporator is connected with the first group of storage The water inlet of the tank is connected, the water outlet of the first group of storage tanks is connected with the water inlet of the cooling equipment, the water outlet of the cooling equipment is connected with the water inlet of the evaporator, the storage tank is also connected with the gas outlet of the oil separator, and the water outlet of the cooling equipment is connected. The water outlet is connected to the water inlet of the evaporator; the whole refrigeration system does not need cooling water, which saves energy; when defrosting, the temperature of the defrosting refrigerant is high, and the defrosting speed is fast.

Description

technical field [0001] The invention relates to the field of refrigeration, in particular to a refrigeration system for preventing liquid hammer. Background technique [0002] At present, the refrigeration system of the cold storage mostly adopts the refrigeration system in which the refrigerant is directly evaporated in the cooling equipment of the cold storage to cool the cold storage. The advantage of this refrigeration system is that the cooling capacity per unit mass of the refrigerant is relatively large. However, because the cooling equipment needs to be filled with refrigerant, the refrigerant charging amount of the entire system is relatively large, and the problem brought about by this is: if it is ammonia refrigerant, ammonia is a toxic substance, and the danger of the entire cold storage is greater; If the refrigerant is freon, the price of freon is high, which greatly increases the construction cost, operation and maintenance cost of the entire cold storage. Th...

AI Technical Summary

Problems solved by technology

However, because the cooling equipment needs to be filled with refrigerant, the refrigerant charging amount of the entire system is relatively large, and the problem brought about by this is: if it is ammonia refrigerant, ammonia is a toxic substance, and the danger of the entire cold storage is greater; If the refrigerant is freon, the price of freon is high, which greatly increases the construction cost, operation and maintenance cost of the entire cold storage

The only disadvantage of pump forced circulation liquid supply is the need to add a liquid pump to the system, which increases the energy consumption of the system

In addition, the current cold storage mostly uses hot gas defrosting to achieve the purpose of saving energy and reducing consumption, but there is a serious risk of "liquid hammer" in hot gas defrosting

If the cooling equipment is not filled with refrigerant, but with refrigerant, then the defrosting of hot refrigerant gas is not applicable

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