Liquid accumulator for refrigerant compressor in refrigeration cycle equipment

Abstract

A liquid accumulator for a refrigerant compressor in refrigeration cycle equipment comprises a sealed container, wherein the upper end of the sealed container is provided with a first fluid passageway communicated with an evaporator outlet, and the lower end of the sealed container is provided with a third fluid passageway communicated with a compressor suction pipe. A partition board is fixedly arranged in the sealed container to divide the interior of the sealed container into a liquid accumulation chamber on the upper portion and an anechoic chamber on the lower portion, and the liquid accumulation chamber is provided with a first fluid passageway communicated with the exterior. A communication second fluid passageway is arranged between the liquid accumulation chamber and the anechoic chamber of the sealed container, and the anechoic chamber of the sealed container is provided with the third fluid passageway communicated with the exterior. The sealed container is divided into the two chambers, and the inner diameter of the passageway between the two chambers is increased, and the length of a gas passageway is reduced, so that the refrigerating capacity loss of the compressor is reduced. In addition, pulsation of an air cylinder compression chamber is alleviated through the anechoic chamber, and the noise is reduced. The liquid accumulator has the effect that the phenomenon that when the compressor is started, a piston and a sliding piece are prone to being abraded is avoided.

Description

technical field [0001] The invention relates to a refrigeration cycle device, in particular to a liquid accumulator used for a refrigerant compressor in an air conditioner or a refrigerator. Background technique [0002] In the prior art, the liquid accumulator used in conjunction with the twin-cylinder rotary compressor with a variable speed motor with a maximum speed of about 120rps is an indispensable basic component for the comfort and efficiency of the air conditioner. However, the pressure loss of the suction refrigerant that occurs when passing through the accumulator at high speed is the cause of the low compressor power. In addition, the vibration of the refrigerant in the liquid receiver will make a lot of noise. Therefore, there is an urgent need to seek improved technologies. [0003] The following technical documents disclose the structure of the liquid accumulator used in the refrigerant compressor in the prior art: [0004] Patent Document 1: Japanese Paten...

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Problems solved by technology

[0009] 2. In the two-cylinder rotary compressor, the suction pressure of the same suction pipe is shared. If the pressure decreases, one of the compression chambers may suck the refrigerant in the other compression chamber at this time, and this phenomenon occurs during high-speed operation. Very obvious and easy to cause a drop in freezing capacity

[0010] 3. The suction vibration in the compression chamber of the compressor is directly transmitted to the whole liquid accumulator through the suction pipe of the compressor, so the noise of the liquid accumulator will be very loud

[0011] 4. After the compressor is stopped, the refrigerating machine oil in the compressor box will flow back into the accumulator, and the refrigerating machine oil flowing into the accumulator cannot flow back quickly when the compressor is restarted due to the structure of the existing accumulator in the compressor

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