Telescopic high-pressure pipeline compensator

Abstract

The invention discloses a telescopic high-pressure pipeline compensator, and relates to the technical field of pipeline compensators. The telescopic high-pressure pipeline compensator comprises a first telescopic part and a second telescopic part, the first telescopic part is used for connecting with a pipeline, and comprises a first pipe body, and an outer pipe shell and an inner pipe shell are arranged on one end face of the first pipe body; a first flange is fixed to the other end face of the first pipe body; the second telescopic part is used for connecting with another pipeline, and comprises a second pipe body, and an inserting pipe shell is located on one end face of the second pipe body, and is in clearance fit with an annular cavity in the first pipe body; and a second flange is fixed to the other end face of the second pipe body. According to the telescopic high-pressure pipeline compensator, relative contraction or extension is achieved through relative sliding connection between the independent first telescopic part pipe body and the second telescopic part pipe body so that the pipeline compensation effect is achieved, and the two pipe bodies are independent in structure; and the pipeline compensator is free of structural deformation, high in bearing pressure, convenient in installation, low in mechanical fatigue and long in service life.

Description

technical field [0001] The invention belongs to the technical field of pipeline compensators, in particular to a telescopic high-pressure pipeline compensator. Background technique [0002] Pipeline compensators, also known as expanders or expansion joints, expansion joints, are mainly used to compensate for thermal expansion and contraction of pipelines caused by temperature changes. If the pipe is not completely free to expand or contract when the temperature changes, thermal stresses will develop in the pipe. This stress must be considered in the pipeline design, otherwise it may cause the rupture of the pipeline and affect the normal production. As an important part of pipeline engineering, compensators play an important role in ensuring the long-term normal operation of pipelines. [0003] Pipeline compensators are divided into metal corrugated compensators, non-metallic compensators, sleeve compensators, and square compensators. Metal corrugated compensators and non...

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Problems solved by technology

[0006] It can be seen that the existing pipeline compensator realizes the compensation principle of the pipeline based on the combination of bellows. Since the bellows itself is a structure that can be stretched and deformed, the compensator itself will produce large axial and radial directions. Fluctuation, prone to mechanical fatigue, and the installation and fixing are more complicated, and the requirements for supporting parts are relatively high

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