Anti-explosion high-pressure resistant self-sealing rotating compensator

Abstract

The invention discloses an anti-explosion high-pressure resistant self-sealing rotating compensator. The anti-explosion high-pressure resistant self-sealing rotating compensator comprises a reducing outer pipe (11) and an inner pipe (1), and is characterized by also comprising an anti-explosion outer ring (7), wherein one end of the anti-explosion outer ring (7) is sleeved on the inner pipe (1); the other end of the anti-explosion outer ring (7) is connected with the reducing outer pipe (11); an outer convex shoulder (13) is formed at the insertion end of the inner pipe (1); an inner convex shoulder (12) is formed at the matching position between the reducing outer pipe (11) and the outer convex shoulder (13); the outer shoulder (13), the outer surface, out of the inner convex shoulder (12), of the corresponding inner pipe, and the inner surface of the reducing outer pipe (11) form an end surface sealing cavity for installing a high-pressure resistant end surface sealing ring (10); ananti-explosion inner ring (4) is also arranged on the outer circular surface of the inner pipe (1) at least; and an end surface sealing cavity for installing an end surface flexible sealing ring (3) is formed among the anti-explosion inner ring (4), the end surface of the anti-explosion outer ring (7) or the inner convex shoulder connected in the anti-explosion outer ring (7), the outer surface of the inner ring and the inner surface of the anti-explosion outer ring. By using the anti-explosion high-pressure resistant self-sealing rotating compensator, the safety of the rotating compensator is improved fundamentally; and the application range of the rotating compensator is further widened.

Description

technical field [0001] The invention relates to a rotary compensator, in particular to a rotary compensator with an explosion-proof function, in particular to an explosion-proof high-pressure resistant self-sealing rotary compensator. Background technique [0002] At present, as a new pipeline length compensation device, the rotary compensator has been widely used in petrochemical, metallurgy, heating and other industries, fully demonstrating its advantages of large compensation length, simple structure, convenient installation and use, and low cost. The existing structure of the rotary compensator has only one end face sealing structure, which can fully meet the requirements of use under normal circumstances, but from the perspective of safety, especially in some high-temperature and high-pressure pipelines and pipelines with frequent temperature changes and strict prevention of leakage There will be certain safety hazards during use. When the step surface of the inner ...

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Problems solved by technology

[0003] The purpose of this invention is to solve the problem that the existing rotation compensation has a low safety factor and cannot be applied to some pipelines with high safety requirements due to the lack of secondary explosion-proof measures, and to invent an explosion-proof and high-pressure resistant self-sealing suitable for all applications. rotary compensator

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