Three-dimensional spherical compensator with sealing device

Abstract

The invention discloses a three-dimensional spherical compensator with a sealing device. The three-dimensional spherical compensator with the sealing device comprises a ball head connecting tube and aliner tube. The ball head connecting tube comprises a first ball head connecting tube body and a second ball head connecting tube body. A middle connecting tube comprises a first connecting tube bodyand a second connecting tube body. The first ball head connecting tube body is arranged in the first connecting tube. A first flange is arranged at the left end of the first connecting tube body. A first filler chamber is arranged between the first ball head connecting tube body and the first connecting tube body. A first pressing cover is arranged on the left side of the first filler chamber. The first pressing cover is connected with the first flange through bolts. Skeleton sealing filler is arranged between the outer surface of the liner tube and the second connecting tube body. Accordingto the three-dimensional spherical compensator with sealing device, the movement gap of the compensator is narrowed because of the sealing filler, dust is stopped from entering the compensator at thesame time, and therefore, the axial displacement movement is smoother. The three-dimensional spherical compensator with the sealing device is applied to pulverized coal conveying pipelines, and because both the deflection angle and the axial displacement of the compensator are large, the displacement generated by pipeline equipment during running can be effectively compensated and absorbed. The three-dimensional spherical compensator with the sealing device is simple in structure, convenient to use, practical, long in service life, and very convenient to make, install and maintain.

Description

technical field [0001] The invention relates to the technical field of compensators, in particular to a three-dimensional spherical compensator with a sealing device. Background technique [0002] Chinese patent CN203223690U disclosed a "three-dimensional spherical axial compensator" on March 27, 2013, and the patent number is 201320141998.8. The three-dimensional spherical axial compensator includes a housing and a telescopic tube placed in the housing and capable of telescopic expansion. The two ends of the telescopic tube are respectively provided with spherical joints, and the guide limit rod connects the telescopic tube and the housing. A spherical joint is used to connect the compensator to the pipeline, which has the characteristics of convenient installation and flexible rotation; and the expansion tube and the shell are connected by a guide limit rod. When the pipeline is expanded or compressed, the expansion tube inside the shell can be free It is stretchable, and...

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Problems solved by technology

[0003] At present, there is a large gap in the moving parts of the above-mentioned spherical compensator, which may cause large resistance due to instability during axial displacement

On the other hand, the pulverized coal pipeline of the boiler is full of dust, and pulverized coal will enter the compensator during use, and the pulverized coal will grind the moving parts of the compensator, and the compensator will easily leak after several years of use phenomenon, which requires maintenance or replacement of the compensator, resulting in short service life of the compensator, heavy maintenance and replacement workload, high cost of use, and it will also affect the normal operation of the enterprise and cause economic losses

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