Heat exchange system, gas-liquid separator and machining method of gas-liquid separator

Abstract

The invention discloses a gas-liquid separator which comprises a cylinder (3), a fixing plate (1) and a cold medium tube (2), wherein the fixing plate (1) and the cold medium tube (2) are fixed to the inside of the cylinder (3). The fixing plate (1) is provided with a through hole, the cold medium tube (2) is inserted into the through hole of the fixing plate (1), and the fixing plate (1) is connected with the cold medium tube (2) in an expansion mode. The cold medium tube in the gas-liquid separator can be fixed by being inserted into the through hole of the fixing plate through an expansion connection procedure, so that deformation, deviation and other problems of the cold medium tube caused by pressing installation are solved. Besides, the fixing plate and the cold medium tube are fixedly connected in the expansion mode, reliability is high, the machining process is simple, machining cost of the gas-liquid separator is greatly reduced, and product performance is good. Moreover, the invention further discloses a heat exchange system provided with the gas-liquid separator and a machining method of the gas-liquid separator.

Description

Technical field [0001] The present invention relates to the field of heat exchange technology, in particular to a gas-liquid separator. In addition, the present invention also relates to a heat exchange system and a processing method of the gas-liquid separator. Background technique [0002] Gas-liquid separators are generally used in medium and large heat exchange systems. They are installed between the evaporator and the compressor to separate gaseous and liquid refrigerants, so that the refrigerant enters the compressor from the compressor suction port in gaseous form. Prevent liquid shock to the compressor, and return the refrigerating oil to the compressor to lubricate the compressor, ensure the normal operation of the compressor, and store part of the liquid refrigerant. [0003] The main structure of the gas-liquid separator includes refrigerant pipes, end caps, cylinders, filter components, filters and other components. Among them, the end cover and the cylinder constitut...

AI Technical Summary

Problems solved by technology

[0005] The interference press-fitting structure is adopted, and the elastic deformation of the elbow, the fixing plate, and the cylinder is mainly used to fix the two. However, problems such as deformation and deflection will inevitably exist during the press-fitting process, which will cause the cylinder, the fixing plate, and the refrigerant There is a local gap between the pipe and the fixed plate, and there are loose positioning, noise, and abnormal noise, which may damage the parts in severe cases

[0006] Of course, the welding method in the integrated furnace is sometimes used in the processing method of the gas-liquid separator. Although the welding in the integrated furnace can solve the problem of local gaps, the processing procedure is relatively complicated, and the energy consumption is relatively large, which wastes costs. At the same time, the product The overall furnace is equivalent to annealing once, and the strength of the refrigerant tube is greatly reduced, resulting in a decrease in the pressure bearing performance of the product

[0007] In addition, it is inconvenient to press the fixing plate into the operation, and the product efficiency is relatively low

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