Compressor exhaust pipe and manufacturing method and application of compressor exhaust pipe

Abstract

The invention relates to the field of a compressor, in particular to a compressor exhaust pipe and a manufacturing method and application of the compressor exhaust pipe. The compressor exhaust pipe is arranged on an upper cover of the compressor and comprises a copper pipe section and an iron pipe section, the copper pipe section and the iron pipe section are in butt welding through flash welding, and the iron pipe section is connected with the upper cover of the compressor through electric resistance welding. The manufacturing method of the compressor exhaust pipe comprises preheating and upset-forging. The compressor exhaust pipe can be applied to an air conditioning compressor, a refrigerator compressor and a scroll compressor. The connection between the copper pipe section and the iron pipe section of the compressor exhaust pipe and the connection between the iron pipe section and the upper cover of the compressor adopt a welding method without welding materials, the use of the welding materials is completely eradicated, thus the environment cannot be polluted by waste gases such as carbon dioxide generated during a production process, the technology is simplified while the green production is realized, and the manufacturing cost is lowered; and the compressor exhaust pipe has the advantages that the welding quality is good, the welding strength is more reliable, the welding quality is increased, and the service life is prolonged.

Description

technical field [0001] The invention relates to the field of compressors, in particular to a compressor exhaust pipe 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] At present, most of the compressor exhaust pipes in the prior art adopt the structure of a whole copper pipe, which is connected to the upper cover of the compressor through silver solder flame brazing or high-frequency brazi...

AI Technical Summary

Problems solved by technology

This leads to the complexity of the connection structure between the copper pipe and the iron pipe. Moreover, since the copper pipe and the iron pipe are socket-type furnace welding (also known as seam welding), during welding, there will be Vibration and cracking are generated, which cannot meet the industry's requirements for the cleanliness of copper pipes. Moreover, when air-conditioning manufacturers re-solder, it is easy to cause secondary melting of the solder, resulting in poor quality. Furthermore, due to the use of solder, it becomes unfriendly to the environment.

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