Composite heat insulation structure high temperature resistant compensator

Abstract

The invention discloses a composite heat insulation structure high temperature resistant compensator which comprises a left end plate, a left flow guide barrel, a left external connection pipe, heat insulation filler, a corrugated pipe, a right flow guide barrel, a right external connection pipe and a right end plate. The left end plate, the left external connection pipe, the corrugated pipe, the right external connection pipe and the right end plate are sequentially and fixedly connected to form a corrugated pipe compensation structure. In the corrugated pipe compensation structure, the right flow guide barrel is in clearance coaxial sleeve fit with the left flow guide barrel, a plurality of rings are arranged in a gap of the sleeving portions of the left flow guide barrel and the right flow guide barrel, the rings are fixedly connected onto the outer wall at the right end of the left flow guide barrel and are in clearance fit with the inner wall of the right flow guide barrel, and an abrasion-resistant coating is arranged on the outer wall of each ring. The compensator is further characterized in that a lining pipe is arranged between the right external connection pipe and the right flow guide barrel, the right end of the lining pipe is fixedly connected onto the left end face of the right end plate, and the left end of the lining pipe is in clearance fit with the right end of the left external connection pipe. The high temperature resistant compensator adopts the composite heat insulation structure, can remarkably reduce the quantity of a heat insulation material flowing into a pipeline, and is good in heat insulation effect.

Description

technical field [0001] The invention relates to a pipeline compensator, in particular to a bellows compensator. Background technique [0002] The bellows compensator in the pipeline is used to absorb or compensate the axial deformation and axial thrust, so as to protect the safe operation of the pipeline. For pipelines conveying high-temperature media, in order to protect the bellows, the bellows compensator in the prior art adopts a heat insulation structure, and generally has a left diversion tube and a right diversion tube, and the left diversion tube and the right diversion tube are coaxial The gap fits, and the cavity between the outer wall of the left diversion pipe and the right diversion pipe and the bellows and the inner wall of the connection pipe is filled with heat insulating material to form a heat insulation structure. This kind of heat insulation structure can play the role of heat insulation, but because the gap between the left diversion pipe and the right ...

AI Technical Summary

Problems solved by technology

This kind of heat insulation structure can play the role of heat insulation, but because the gap between the left diversion pipe and the right diversion pipe is generally large, the heat insulation material is easy to lose a large amount from the gap, which affects on the one hand. The heat insulation effect will cause the corrugated pipe to fail prematurely due to high temperature. On the other hand, a large amount of heat insulation material flows into the pipe, causing the pollution of the medium in the pipe.

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