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Floating sealing type rotary compensator

A technology of rotary compensator and floating seal, which is applied to expansion compensating devices for pipelines, pipes/pipe joints/fittings, mechanical equipment, etc. The effect of lowering, increasing pressure, and increasing resistance to fluid erosion

Inactive Publication Date: 2017-09-29
高玉琴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that the tightness of the sealing packing close to the retaining ring and the outer cylinder and inner cylinder is the lowest, and this place is first corroded by the fluid (the fluid in the sleeve compensator has a certain pressure) , it is easy to reduce the sealing performance

Method used

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Embodiment Construction

[0009] The specific embodiment of the present invention will now be described in conjunction with the accompanying drawings.

[0010] A floating seal type rotary compensator, which includes an inner cylinder 1 and a sleeve 2, the inner cylinder 1 extends on the sleeve 2, and a sealing packing 3 is arranged between the inner cylinder and the sleeve, the sealing packing is made of graphite material, and the sleeve The end surface of the inner flange at the left end is in contact with the left side of the sealing packing, the inner diameter of the inner flange matches the outer diameter of the inner cylinder, and the outer cylinder 4 is set on the right part of the inner cylinder, and the left end of the outer cylinder extends over the sleeve In the middle, the left end surface of the outer cylinder is in contact with the right side surface of the sealing packing, an outer flange 8 extends from the left end of the sleeve, a flange 5 is welded on the outer circle of the outer cylin...

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Abstract

A floating sealing type rotary compensator is used for compensating thermal expansion of a pipeline. The floating sealing type rotary compensator comprises an inner cylinder (1) and sealing filler (3) which surrounds the inner cylinder. The outer circle part of the sealing filler is covered with a sleeve (2). The end face of an inner flange at the left end of the sleeve and the left end face of an outer cylinder (4) can pressurize the sealing filler. The floating sealing type rotary compensator further comprises a limiting device for the inner cylinder so that the axial position between the inner cylinder and the sleeve can be kept. The floating sealing type rotary compensator has the beneficial effects that the sleeve and the outer cylinder pressurize the two sides of the sealing filler, and the sealing filler can make uniform and tight contact with the sleeve and the inner cylinder; and compared with the prior art, the sleeve compensator has the beneficial effects that the right pressure of the sealing filler is improved, the fluid corrosion resisting capacity of the right part of the sealing filler is enhanced, and the reduction of the sealing performance is effectively prevented. The limiting device of the inner cylinder is arranged on the exterior, and assembling of the floating sealing type rotary compensator is facilitated.

Description

technical field [0001] The invention relates to a rotary compensator, which is used for compensating thermal expansion and cold contraction of pipelines. Background technique [0002] The structure of the rotary compensator generally includes an outer cylinder, an inner cylinder extending in the outer cylinder, a sealing packing is provided between the outer cylinder and the inner cylinder, a retaining ring is provided on one side of the sealing packing, and a compression ring is provided on the other side of the sealing packing. The cover and the retaining ring are fixed on the inner wall of the middle part of the outer cylinder, and the gland applies pressure to the sealing packing so that the sealing packing stretches in the radial direction and closely adheres to the outer cylinder and the inner cylinder. Its disadvantage is that the tightness of the sealing packing near the retaining ring and the outer cylinder and the inner cylinder is the lowest, and this place is the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L51/00
CPCF16L51/00
Inventor 高玉琴
Owner 高玉琴
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