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Bellows clamp valve with splittable tube body and dynamic sealing

A dynamic sealing and bellows technology, applied in the direction of pipes/pipe joints/fittings, valve details, diaphragm valves, etc., can solve the problems of short service life, affecting operation, insufficient heat resistance and fatigue resistance, and improve service life. , Easy disassembly and assembly, good anti-fatigue effect

Pending Publication Date: 2017-10-27
NANTONG YANGZI RUBBER & PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the rubber pinch valve is used in metallurgy, chemical industry, mining, pharmaceutical, ore-making cyanide, carbon slurry, sewage purification and other industries, due to insufficient heat resistance and fatigue resistance, the service life is short, and frequent replacement is required. Jobs affecting these industries

Method used

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  • Bellows clamp valve with splittable tube body and dynamic sealing

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Embodiment Construction

[0015] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments, which are only used to explain the present invention and do not limit the protection scope of the present invention.

[0016] Such as figure 1 As shown, the corrugated pipe pinch valve with detachable pipe body and dynamic seal includes a composite pipe body 1 and pipe joint flanges 2 connected at both ends, wherein the composite pipe body 1 includes reinforcing fiber layers 3 arranged in sequence from the inside to the outside , stainless steel bellows layer 4 and anti-aging rubber outer layer 5, and each pipe joint flange 2 includes a flange portion 21 and a connecting cylinder portion 22, wherein the side of the flange portion 21 facing the composite pipe body 1 is also provided There is an annular groove 23, and an extrusion gasket 10 is arranged on the outside of the composite pipe body 1...

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Abstract

The invention discloses a bellows clamp valve with a splittable tube body and dynamic sealing, comprising a composite tube body and tube joint flanges connected to the two ends of the composite tube body, wherein the composite tube body includes a reinforcing fiber layer, a stainless steel bellows layer and an outer anti-aging rubber layer which are arranged sequentially from inside to outside, and each tube joint flange includes a flange disc portion and a connection barrel portion, wherein the side of the flange disc portion facing the composite tube body is also provided with a circular groove, and an extrusion washer is arranged in the circular groove; the inner wall of the composite tube body is compressed to the inner wall of the connection barrel portion of each tube joint flange through a compressive bushing; the extrusion washers and the flange disc portions of the tube joint flanges are fixedly connected through a plurality of matched bolt and self-locking nut sets; the connection barrel portions of the tube joint flanges are fixedly connected to the composite tube body and the compressive bushings through a plurality of ball-head screws. The bellows clamp valve of the invention provides improved heat conductivity, fatigue resistance, improved disassembly performance for maintenance and corrosion resistance for a bellows clamp.

Description

technical field [0001] The invention relates to the technical field of pinch valves, in particular to bellows pinch valves with detachable pipe body and dynamic seal. Background technique [0002] At present, in metallurgy, chemical industry, mining, pharmaceutical, ore-making cyanide, carbon slurry, sewage purification and other industries, rigid and complex valves are mostly used, such as gate valves, ball valves, wax isolation valves, globe valves, pulp valves and For some other stainless steel valves, these valves are equipped with dynamic seals, and the seals cannot be separated from the valve body, which often causes problems such as medium running, popping, dripping, and leaking; these valves are not convenient to replace and maintain; The adaptability is different and the scope of use is narrow. [0003] Chinese patent application CN201210555305.X, a rubber pipe pinch valve, includes a section of composite rubber pipe body, and flanges are integrally formed on both ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K7/04F16K27/02F16L23/02F16L23/04
CPCF16K7/04F16K27/0236F16L23/02F16L23/04
Inventor 罗桂云
Owner NANTONG YANGZI RUBBER & PLASTIC
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