Air-liquid separator, compressor assembly and air conditioner

Abstract

The invention provides an air-liquid separator, and relates to the technical field of air conditioners. The air-liquid separator comprises a shell, an outlet pipe and a liquid suction pipe, wherein the outlet pipe penetrates out of the shell from the side wall of the shell, one end of the liquid suction pipe extends to the bottom of an inner cavity of the air-liquid separator, and the other end ofthe liquid suction pipe is connected with the outlet pipe. A compressor assembly comprises the air-liquid separator. An air conditioner comprises the compressor assembly. Therefore, length of the outlet pipe is reduced, then first-order resonant frequency of a refrigerant is increased, air suction frequency of a compressor operating at high frequency is prevented from obviously exceeding the first-order resonant frequency of the refrigerant, a suction supercharging effect is conveniently produced when the compressor operates at the high frequency, intake efficiency of the compressor is enhanced, and performance of the compressor is enhanced; and besides, by means of the liquid suction pipe, lubricating oil at the bottom of the air-liquid separator is conveniently sucked into the compressor, so that the compressor is continuously lubricated, and long-term reliable operation of the compressor is guaranteed.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a gas-liquid separator, a compressor assembly and an air conditioner. Background technique [0002] In the prior art, there are known compressors that utilize the effect of suction boosting. Since the compressor periodically sucks air from the gas-liquid separator, the refrigerant in the gas-liquid separator forms periodic pulsations, and When the pulsation frequency of the refrigerant reaches the suction resonance frequency, the pulsation amplitude of the refrigerant in the gas-liquid separator reaches the maximum, and the suction frequency of this type of compressor is equivalent to the suction resonance frequency (the suction frequency of the compressor is generally not greater than the suction resonance frequency), the pressure wave generated by refrigerant resonance produces a suction boost effect on the suction of the compressor, which in turn increases the amount ...

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Problems solved by technology

[0006] However, since the outlet pipe generally passes through the bottom of the gas-liquid separator, shortening the length of the outlet pipe means simultaneously shortening the length of the gas-liquid separator and reducing the capacity of the gas-liquid separator, which means It is necessary to weaken the function of the gas-liquid separator, which increases the possibility of the compressor being subjected to liquid shock and affects the performance of the compressor.

[0007] In this regard, the patent with the publication number CN205349734U describes a technical scheme in which the outlet pipe passes through the side wall of the gas-liquid separator to the outside of the casing, so that only the length of the outlet pipe can be shortened without Shortening the outlet pipe L of the gas-liquid separator will not affect the capacity of the gas-liquid separator. However, this will easily cause oil accumulation in the area below the outlet pipe of the gas-liquid separator, reducing the lubricating oil in the compressor. This affects the reliability of the long-term operation of the compressor; in addition, since the outlet pipe passes through the side wall of the gas-liquid separator to the outside of the casing, most of the outlet pipe extends into the inner cavity of the gas-liquid separator. This makes the outlet pipe prone to greater vibration when the compressor is running, which can easily lead to increased noise, and may even cause damage and breakage of the outlet pipe

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