Liquid distributor, falling-film evaporator and air conditioner

Abstract

The invention relates to a liquid distributor, a falling-film evaporator and an air conditioner. The liquid distributor comprises a liquid homogenizing tank and a liquid stopping tank, wherein the bottom wall of the liquid homogenizing tank is provided with a plurality of liquid distribution through holes; the top space of the liquid homogenizing tank communicates with an air exhaust channel of the falling-film evaporator; the liquid stopping tank is arranged above the bottom wall of the liquid homogenizing tank; the liquid stopping tank comprises two opposite side walls; the two opposite sidewalls of the liquid stopping tank are separately provided with a plurality of overflow through holes; the top space of the liquid stopping tank communicates with the air exhaust channel of the falling-film evaporator; and a refrigerant can be injected into the liquid stopping tank. The gas-liquid mixing refrigerant can be separately subjected to primary gas-liquid separation and secondary gas-liquid separation in a process of entering into the liquid stopping tank and the liquid homogenizing tank, so that inclusion contents of the gaseous refrigerant in the liquid-state refrigerant which flows out of the bottom wall of the liquid homogenizing tank can be effectively reduced, so that the phenomenon that a uniform and stable liquid film of the liquid-state refrigerant is formed on the surface of a heat exchange pipe is ensured, and the heat exchange efficiency of the falling-film evaporator is improved.

Description

technical field [0001] The invention relates to the technical field of heat exchange equipment, in particular to a liquid distributor, a falling film evaporator and an air conditioner. Background technique [0002] During the working process of the falling film evaporator, the refrigerant in the gas-liquid mixed state enters the liquid distributor in the falling film evaporator from the top. user. After the liquid refrigerant itself is evaporated, it enters the suction port of the compressor, is compressed and then discharged into the condenser. The formation of a uniform and stable liquid film covering the surface of the heat exchange tube by the liquid refrigerant is a necessary condition to ensure sufficient heat exchange in the falling film evaporator. The refrigerant in the gas-liquid mixed state in the traditional falling film evaporator is not easy to separate, and the liquid refrigerant cannot form a uniform and stable liquid film on the surface of the heat exchang...

AI Technical Summary

Problems solved by technology

[0003] Based on this, it is necessary to solve the problem of low heat exchange efficiency caused by the difficulty of separating the refrigerant in the gas-liquid mixed state in the traditional falling film evaporator, and provide a liquid distribution system that can effectively separate the refrigerant in the gas-liquid mixed state and improve the heat exchange efficiency. evaporators, falling film evaporators and air conditioners

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