Two-way thrust-free directly-buried compensator

A direct-buried type compensator technology, which is applied in expansion compensation devices for pipelines, pipes/pipe joints/fittings, mechanical equipment, etc., can solve the problems of small compensation amount and single-directional installation, and achieve large compensation amount, Effects of improving reliability and improving installation efficiency

Inactive Publication Date: 2014-09-03
江苏晨光波纹管有限公司
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AI Technical Summary

Problems solved by technology

[0002] The direct-buried bellows compensator of the existing structure is usually one-way, one end is fixed, and the other end is movable. This kind of bellows compensator has disadvantages: on the one hand, it can only be installed in one direction, on the other hand, the compensation amount is small

Method used

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  • Two-way thrust-free directly-buried compensator

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Embodiment Construction

[0011] The present invention will be further described below according to the accompanying drawings and in conjunction with the embodiments.

[0012] The two-way non-thrust direct-buried compensator shown in the attached figure includes an end pipe 1, two bellows 2, an intermediate pipe 5 and a guide tube 8; the intermediate pipe 5 is connected to the bellows 2 and the end pipe 1 in sequence , forming a double bellows compensation structure; a protective cover 3 is provided outside the double bellows compensation structure; the protective cover 3 and the intermediate connecting pipe 5 are fixedly connected by a fixing ring 4; both ends of the protective cover 3 are fixedly connected to the end plate 7, and the end The gap between the plate 7 fits on the outer wall of the terminal pipe 1. In this embodiment, the inner hole wall of the end plate 7 is provided with a radial annular groove, and a sealing ring 6 is arranged in the radial annular groove, which is close to the outer w...

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Abstract

The invention discloses a two-way thrust-free directly-buried compensator which comprises an end connection tube, two corrugated tubes and a middle connection tube. The middle connection tube is sequentially connected with the corrugated tubes and the end connection tube to two ends to form a double-corrugated-tube compensation structure; the outer side of the double-corrugated-tube compensation structure is provided with a protective sleeve; the two ends of the protective sleeve are fixedly connected with end plates, and the end plates are in clearance fit with the outer wall of the end connection tube; the protective sleeve and the middle connection tube are fixedly connected through a fixing ring. The compensator is characterized in that the walls of inner holes of the end plates are provided with radial annular grooves, and sealing rings are arranged in the radial annular grooves and are attached to the outer wall of the end connection tube to form radial sealing structures. The compensator is of a horizontal symmetry structure, can be installed in two directions, and is large in compensation amount. Meanwhile, fixing supports do not need to be installed at the two ends of the compensator during installation, so that installation efficiency is effectively improved, and installation cost is saved. Meanwhile, the radial sealing structures are formed at the two ends, so that impurities, dust and the like can be effectively prevented from entering waves of the corrugated tubes, and use reliability is remarkably improved.

Description

technical field [0001] The invention relates to a pipeline compensator, in particular to a bellows compensator. Background technique [0002] The direct-buried bellows compensator of the existing structure is usually one-way, one end is fixed, and the other end is movable. This kind of bellows compensator has disadvantages: on the one hand, it can only be installed in one direction, and on the other hand, the compensation amount is small. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention proposes a two-way non-thrust direct-buried compensator which has a large compensation amount and can be installed in two directions. [0004] The present invention achieves technical goals through the following technical solutions. [0005] The improvement of the two-way non-thrust direct-buried compensator is that it includes an end pipe, two corrugated pipes, an intermediate pipe and a guide tube; Bellows compensation structure; a pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L51/03
CPCF16L51/03
Inventor 朱海军吴秧平
Owner 江苏晨光波纹管有限公司
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