Energy-saving device with high-pressure liquid storage and supply function and low-pressure gas-liquid separation function

Abstract

The invention relates to an energy-saving device with a high-pressure liquid storage and supply function and a low-pressure gas-liquid separation function. The energy-saving device comprises an innercylinder and an outer cylinder which are coaxially arranged, wherein the top of the inner cylinder and the top of the outer cylinder are flush and are sealed by a flat cover, and an interlayer cavityis formed between the outer side of the inner cylinder and the inner side of the outer cylinder; a liquid inlet pipe and a liquid outlet pipe are arranged in the interlayer cavity, the liquid inlet pipe is connected with the output end of a compressor, the bottom end of the liquid outlet pipe extends into the bottom of the interlay cavity, and the top end of the liquid outlet pipe extends out of the flat cover and is connected with the input end of an evaporator through a throttling valve; an air inlet pipe and an air outlet pipe are arranged in the inner cylinder, the air inlet pipe is a U-shaped pipe, one end of the air inlet pipe extends out of the flat cover and is connected with a liquid outlet of the evaporator, and the other end of the air inlet pipe extends to the top of the innercylinder; and the inlet of the air outlet pipe extends into the inner cylinder, the inlet of the air outlet pipe is lower than the outlet of the air inlet pipe, and the outlet of the air outlet pipe is connected with the output end of the compressor.

Description

technical field [0001] The invention belongs to the technical field of heat pump air conditioners, in particular to a new structure of an economizer. Background technique [0002] At present, the most common heat pump air-conditioning system is that the high-temperature and high-pressure gas-phase refrigerant discharged from the compressor passes through the condenser for heat exchange, and the refrigerant is converted from a gas phase to a liquid phase. After being condensed in the condenser, the refrigerant enters the high-pressure liquid receiver through a dry filter. The pure liquid-phase refrigerant discharged from the high-pressure liquid receiver passes through the economizer, increases the supercooling degree, and then enters the throttle valve. After passing through the isenthalpy throttling of the throttle valve, it lowers the temperature and pressure and enters the evaporator together with the gas-liquid two-phase flow ( The refrigerant (usually water) in the heat...

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Problems solved by technology

[0003] In order to solve the problems of compressor liquid shock and low energy efficiency ratio in the prior art, the object of the present invention is to provide an economizer with complete gas-liquid separation and energy saving

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