Corrugation self-check double-protection compensator

Abstract

The invention discloses a corrugation self-check double-protection compensator. The compensator comprises an operating corrugated pipe, both ends of the operating corrugated pipe are provided with aninlet end pipe and an outlet end pipe respectively, a draft tube and an external protection tube are provided in and outside the corrugated pipe respectively. The compensator is characterized in that:a connection flange is welded between the operating corrugated pipe and the outlet end pipe, a protective corrugated pipe is connected between the connection flange and the external protection tube,and the protective corrugated pipe is sheathed on the outlet end pipe, and the external protection tube is fixedly provided with a leak detection device. The compensator has the advantages of being capable of ensuring flow quantity and flow rate of media, the protective corrugated pipe act sealing effect to protect the operating corrugated pipe from corrosion by external sewage and impurities, thus prolonging service life of the compensator; the compensate can continue work even the operating corrugated pipe present leakage, thus providing double protection; the protective corrugated pipe hasprotection and compensation effect, thus being capable of avoiding environment hazards caused by media leakage, so the compensator is especially applicable to pipes for conveying toxic and harmful dangerous media.

Description

technical field [0001] The invention particularly relates to a corrugated self-test double-guaranteed compensator. Background technique [0002] The existing pipeline compensators mainly have three structural forms: internal pressure type, external pressure type and internal and external pressure balanced type. Pipe and outlet pipe, the outer sleeve sleeved outside the bellows and the internal pressure bellows sleeved on the inlet pipe and fixedly connected with the outer sleeve. There is a medium flow port. The problem of this type of internal and external pressure balance compensator is that the flow port of the medium will affect the flow and velocity of the medium, increase the resistance of the medium flow, and affect the service life of the compensator. Once the compensator leaks, the compensator must be replaced. The internal pressure and external pressure compensators are composed of a working bellows (or combined bellows) and inlet pipes, outlet pipes and outer ca...

AI Technical Summary

Problems solved by technology

The problem of this kind of internal and external pressure balance compensator is: the flow port of the medium will affect the flow and velocity of the medium, increase the resistance of the medium flow, and affect the service life of the compensator. Once the compensator leaks, the compensator must be replaced

The internal press

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