Compressor, manufacturing method and application of compressor

Abstract

The invention relates to the field of a compressor, in particular to the compressor, a manufacturing method and application of the compressor. The compressor comprises a compressor shell and a liquid reservoir shell, wherein the compressor shell is formed by welding at least two parts, and butt-joint ends of constituent parts of the compressor shell are subjected to flash welding butt welding; and the liquid reservoir shell is formed by welding at least two parts, and butt joint ends of constituent parts of the liquid reservoir shell are subjected to flash welding butt welding. The manufacturing method of the compressor shell and the liquid reservoir shell comprises preheating and upset-forging. The compressor is applied to optional one of an air conditioning compressor, a refrigerator compressor and a scroll compressor. According to the compressor disclosed by the invention, not only is the welding performance of welding parts of the compressor shell and the liquid reservoir shell excellent, but also the structural design is simpler, a flange is not needed to be additionally arranged for assisting the welding, the material is saved, and the cost is reduced.

Description

technical field [0001] The invention relates to the field of compressors, in particular to a compressor and its manufacturing method and application. Background technique [0002] The compressor is a fluid machine that raises low-pressure gas to high-pressure gas. It is the heart of the refrigeration system. There is a cylinder inside the shell of the compressor. When working, the low-temperature and low-pressure refrigerant gas enters the cylinder from the intake pipe, and the cylinder After it is compressed, high-temperature and high-pressure refrigerant gas is discharged from the exhaust pipe to provide power for the refrigeration cycle, thereby realizing the refrigeration cycle of compression→condensation→expansion→evaporation. [0003] During the operation of the system, it is impossible to guarantee that the refrigerant can be completely vaporized during the evaporation stage. In order to avoid the liquid refrigerant coming out of the evaporator from entering the cylin...

AI Technical Summary

Problems solved by technology

This kind of resistance welding is generally only used for welding workpieces with a diameter of less than 20mm, a simple cross-section and a small force. Although the operation is relatively simple, it requires high processing and cleaning of the end face of the weldment, otherwise it will cause uneven heating of the contact surface and produce Defects such as oxide inclusions and impenetrable welds; and there is still a lack of reliable non-destructive testing methods, and the welding quality can only be checked by destructive tests of process samples and workpieces

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