High-temperature-resistant reinforced corrugated expansion joint

Abstract

The invention discloses a high-temperature-resistant reinforced corrugated expansion joint, which comprises a left flange, a corrugated pipe, a right flange, a left guide cylinder, a first support rod, a right support rod and a right guide cylinder, wherein the right guide cylinder partially coaxially sleeves on the left guide cylinder; a thermal insulation structure is arranged in a cavity formed by the outer walls of the left guide cylinder and the right guide cylinder, and the inner wall of the corrugated pipe; one end of the first support rod is fixedly connected to the inner wall of the left flange and the other end of the first support rod is fixedly connected to the outer wall of the left guide cylinder; one end of the second support rod is fixedly connected to the inner wall of the right flange and the other end of the second support rod is fixedly connected to the outer wall of the right guide cylinder; the further improvements are that a support barrel clings to the outer wall of the left guide cylinder; the thermal insulation structure is formed by three layers from interior to exterior, a first thermal insulation layer is a composite reflective insulation board; a second thermal insulation is formed by multilayer ceramic fibers, and a third thermal insulation layer is a flocculent heat-resistant packing. The high-temperature-resistant corrugated expansion joint has the advantages of good heat insulation effect, capability of remarkably improving the stress state of the guide cylinder, reliable stream guidance effect and long service life.

Description

technical field [0001] The invention relates to a pipeline compensator, in particular to a bellows compensator. Background technique [0002] The main function of the bellows compensator guide tube is to keep the pipeline medium flowing smoothly and prevent the medium from directly impacting or eroding the bellows. For the flat bellows, during use, the cantilever-shaped guide tube may be deflected under the continuous action of medium gravity and the direct impact of the medium, which may affect the diversion effect, and the medium directly impacts or erodes the bellows ; It may also produce high-frequency vibration, which may cause the whole or part of the guide tube to fall off, and the service life of the compensator is short. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the utility model proposes a high-temperature-resistant reinforced bellows compensator which ensures the use state of the guide cylinder and significantly prolongs th...

AI Technical Summary

Problems solved by technology

For the flat bellows, during use, the cantilever-shaped guide tube may be deflected under the continuous action of medium gravity and the direct impact of the medium, which may affect the diversion effect, and the medium directly impacts or erodes the bellows ;It may also produce high-frequency vibration, which may cause the whole or part of the guide tube to fall off, and the service life of the compensator is short

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