Novel double-gland high-pressure pipeline displacement compensator

Abstract

The invention discloses a novel double-gland high-pressure pipeline displacement compensator, which belongs to the technical field of heat distribution pipeline compensating device structures used in petroleum, chemical industry, light industry, heating power, metallurgy and other industries. The compensator comprises an inner tube, a follower flange, an outer sleeve, a reducing extension pipe, asealing filler, an outer sleeve internal bearing platform, an inner tube convex outer ring, a composite sealing ring, a reducing tube bearing platform and the like, wherein the inner tube convex outer ring is integrally arranged on the inner tube; one end of the inner tube is inserted into the outer sleeve; the inner tube convex outer ring is positioned between the outer sleeve internal bearing platform and the reducing tube bearing platform; the composite sealing ring is pressed against between the inner tube convex outer ring and the reducing tube bearing platform; and a convex end face of the outer sleeve internal bearing platform is pressed against the other end of the inner tube so as to press the sealing filler of the follower flange. By the structure, the novel double-gland high-pressure pipeline displacement compensator has the characteristics of high precision, lower friction coefficient, smaller torque, lower pressure loss, higher bending resistance and bearing capacity, unlimited medium flow direction, reliable sealing, high performance and convenience of pipeline maintenance.

Description

technical field [0001] The invention relates to a matching pipe fitting for pipelines, in particular to the technical field of compensation device structures for thermal pipelines, and specifically belongs to the technical field of compensation device structures for thermal pipelines used in industries such as petroleum, chemical industry, light industry, thermal power, and metallurgy. Background technique [0002] Due to the temperature change of the transmission medium, the thermal pipeline will inevitably cause thermal expansion and contraction of the pipeline, and the expansion and contraction deformation of the pipeline will appear in the form of axial thrust or axial displacement that is not conducive to the safe operation of the pipeline. Under normal circumstances, pipeline compensation devices are installed in thermal pipelines to absorb or compensate pipeline deformation. Pipeline compensators in the prior art have various structural forms, all of which have the ab...

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Problems solved by technology

In order to solve the problems mentioned in the prior art, such as inaccurate axis centering, excessive self-torque, friction coefficient, single sealing form, restricted fluid medium and medium flow direction, and pressure loss caused by unreasonable structure, etc., And at the same time eliminate the direct impact of internal pressure on the sealing packing and improve the durability of the sealing material

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