High-stability sleeve corrugation composite compensator

Abstract

The invention discloses a high-stability sleeve corrugation composite compensator which comprises a padding pipe, a core pipe, a sealing gland, an anti-falling ring, gland packing, a corrugated pipe,connecting pipes and ring plates. The core pipe is sleeved with the padding pipe, the anti-falling ring, the gland packing and the sealing gland are sequentially arranged between the padding pipe andthe core pipe from inside to outside, the ring plates are connected to the outer surfaces of the padding pipe and the core pipe and are connected with the connecting pipes, and the connecting pipes are connected to the two ends of the corrugated pipe arranged on the surfaces of the padding pipe and the core pipe in a sleeving manner. By means of the high-stability sleeve corrugation composite compensator, the dual sealing structure is achieved, a first seal has the self-tightening performance, compensation of the pipe in the axial direction and the rotating direction is achieved, the stabilityof the corrugated pipe is effectively improved, in-advanced efficiency losing of products is prevented, and product maintenance and strengthening sealing are facilitated.

Description

technical field [0001] The invention relates to the field of bellows expansion joints, in particular to a compensator which is composed of a sleeve and a bellows and has anti-leakage, axial and rotational compensation. Background technique [0002] Metal bellows expansion joints are widely used in important industries such as electric power, metallurgy, chemical industry, construction, food, pharmaceuticals, etc., to compensate for the displacement of the piping system due to thermal expansion and contraction. The sleeve compensator is used to compensate the displacement of the pipeline caused by the change of the medium temperature. Compared with the corrugated compensator, the sleeve compensator is very effective in solving the problem of water hammer impact. In order to ensure the safe operation of the thermal pipe network, The problem of leakage is more important. Commonly used sleeve compensators are single-chamber sealed, and their ability to withstand high temperature...

AI Technical Summary

Problems solved by technology

The sleeve compensator is used to compensate the displacement of the pipeline caused by the change of the medium temperature. Compared with the corrugated compensator, the sleeve compensator is very effective in solving the problem of water hammer impact. In order to ensure the safe operation of the thermal pipe network, The problem of leakage is more important. Commonly used sleeve compensators are single-chamber sealed, and their ability to withstand high temperature and high pressure is relatively weak, and leakage is prone to occur

When the medium is high-temperature steam, the leakage problem of the single-type sealing chamber is particularly prominent. The double-type sealing of the superimposed bellows and the sleeve can improve the reliability of the sealing and provide an ideal compensation device for solving high-temperature and high-pressure steam pipe networks. , in the actual operation of the pipeline, the axial compensation is generally used, but in some special occasions, coupled with the influence of mechanical installation errors and pipeline layout structures, there is also a small amount of rotational moment, which easily causes the failure of the outer cover bellows ; and the use of double-sleeve structure composite form, there is a coaxial precision problem in processing and installation, and makes the product structure complicated; the present invention is a technical improvement based on the above situation

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