Corrosion-resistant rotary displacement adjuster for pipelines

Abstract

The invention discloses a corrosion-resistant rotary displacement adjuster for pipelines, which belongs to the technical field of heat supply pipeline compensation device structures. The corrosion-resistant rotary displacement adjuster comprises an inner tube, an inner tube pressing piece cushion cap, a reducing core tube, a reducing core tube convex outer ring, an outer sleeve, an outer sleeve inner cushion cap and the like, wherein the reducing core tube convex outer ring is arranged at one end of the reducing core tube; the inner tube pressing piece cushion cap is arranged on an outer ring of the inner tube; one end of the inner tube is straightly inserted into the reducing core tube convex outer ring and is lapped over the inner wall of the reducing core tube; the outer sleeve is wholly sleeved on the reducing core tube convex outer ring; the outer sleeve inner cushion cap is convexly arranged on the inner ring surface of the outer sleeve; and corrosion-resistant coating layers are adhered to the inside of the reducing core tube, the surface of the outer ring, the inner ring surface of the inner tube and the surface of the outer ring close to the inner end of the inner tube. By adopting the structure, the corrosion-resistant rotary displacement adjuster has the advantages of corrosion resistance, reliable sealing, small friction coefficient and torque, strong pressure bearing capacity, no pressure loss, unlimited medium flow direction, high performance and safe and reliable running of the pipelines.

Description

technical field [0001] The invention relates to a corrosion-resistant rotary displacement regulator for pipelines, which belongs to the technical field of the compensation device structure of the heating network pipeline, and specifically belongs to the technology of the compensation device structure of the heating network pipeline used in petroleum, chemical industry, light industry, metallurgy and other industries field. 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. The pipeline compensators in the prior art have various...

AI Technical Summary

Problems solved by technology

In order to solve the problems of the existing rotary compensator, such as inaccurate axis centering, excessive torque and friction coefficient, single sealing form, restricted fluid medium and medium flow direction, and increased pressure loss caused by the structure, and at the same time eliminate the impact of internal pressure The direct impact of the sealing packing, improving the durability of the sealing material and the purpose of effectively preventing corrosion

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