Gas-liquid separator suitable for air conditioning system with multi-compressor parallel connection

A gas-liquid separator and air-conditioning system technology, applied in the direction of refrigerators, refrigeration and liquefaction, refrigeration components, etc., can solve the problems of difficult return of lubricating oil, slow air flow in the pipe, damage to the compressor, etc., and achieve stable liquid level and suction The effect of the same air pressure and basic suction pressure

Inactive Publication Date: 2009-05-13
WUXI TONGFANG ARTIFICIAL ENVIRONMENT +2
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AI Technical Summary

Problems solved by technology

Since the diameter of the suction main pipe is relatively thick, the airflow velocity in the pipe is slow during low-load operation. If it is lower than the minimum oil-carrying velocity, it will be difficult for the lubricating oil to return to the compressor, resulting in poor oil supply to the compressor and damage to the compressor.

Method used

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  • Gas-liquid separator suitable for air conditioning system with multi-compressor parallel connection
  • Gas-liquid separator suitable for air conditioning system with multi-compressor parallel connection
  • Gas-liquid separator suitable for air conditioning system with multi-compressor parallel connection

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Embodiment Construction

[0012] see figure 1 and figure 2 , the present invention includes a shell 1 of the gas-liquid separator and a refrigerant inlet pipe 2 connected to the upper end of the shell 1 and four suction pipes 3 . The refrigerant inlet pipe 2 is a main pipe communicating with the inner chamber 11 of the housing 1 . The multi-channel refrigerant flowing out from each evaporator / condenser 4 flows into the inner cavity 11 of the housing 1 through the refrigerant inlet pipe 2 . The suction pipes 3 are a plurality of U-shaped pipes placed at the bottom of the inner chamber 11 of the housing 1 , and the U-shaped section at the lower end of each suction pipe 3 is provided with a plurality of oil suction holes 32 .

[0013] see image 3 , when the present invention is used, the refrigerant flowing out from each evaporator / condenser 4 flows into the refrigerant inlet pipe 2 through the four-way valve 6, and enters the inner chamber 11 of the gas-liquid separator shell 1. A large amount of r...

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Abstract

A gas-liquid separator suitable for an air conditioning system with a plurality of parallel compressors relates to the gas-liquid separator in the air conditioning technical field. The gas-liquid separator comprises a shell, and a refrigerant feed tube and an air suction tube which are connected with the upper end of the shell. The structural feature of the gas-liquid separator is as follows: the refrigerant feed tube is a manifold communicated with the inner cavity of the shell, the air suction tube comprises a plurality of U-shaped tubes which are arranged at the bottom of the inner cavity of the shell, and the lower U-shaped section of each air suction tube is provided with a plurality of oil absorption holes. Compared with the prior art, the gas-liquid separator can smoothly take lubricating oil deposited in the pipeline of the system back into compressors to cause uniform oil return of each compressor and equalize suction pressure and suction amount of all compressors.

Description

technical field [0001] The invention relates to a gas-liquid separator in the technical field of air conditioning, in particular to a gas-liquid separator suitable for connecting multiple compressors in parallel to form an air-conditioning system. Background technique [0002] In an air conditioning system with multiple compressors connected in parallel, even if an oil separator is installed at the exhaust end of each compressor, lubricating oil will still enter the system along with the refrigerant in the refrigerant, and poor oil supply to the compressor will cause the compressor to Damage and oil return status have an important impact on the performance and safety of the entire system. During cooling operation, the refrigerant flowing in the pipeline from the compressor to the outdoor unit is a high-temperature and high-pressure gas with a high flow rate, and the refrigerant and lubricating oil can be well mixed, so the stored in this pipeline There is very little refrig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B43/02
Inventor 白俊文王洋范新李国强
Owner WUXI TONGFANG ARTIFICIAL ENVIRONMENT
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