CN203442372U

CN203442372U - Environment-friendly semimetal wound gasket

Info

Publication number: CN203442372U
Application number: CN201320594201.XU
Authority: CN
Inventors: 龚旭远
Original assignee: CIXI HIGH NEW (COXIN) SEALING MATERIAL Co Ltd
Current assignee: CIXI HIGH NEW (COXIN) SEALING MATERIAL Co Ltd
Priority date: 2013-09-11
Filing date: 2013-09-11
Publication date: 2014-02-19
Anticipated expiration: 2023-09-11

Abstract

The utility model discloses an environment-friendly semimetal wound gasket which comprises an inner ring, a winding member, an inner ring and a sealing ring, wherein the inner ring, the winding member, the outer ring and the sealing ring are in closed connection sequentially from inside to outside; the winding member is of a V shape; the inner ring is connected with a concave surface of the winding member; the outer ring is connected with the convex surface of the winding member; bolt holes are spaced in the outer ring. According to the environment-friendly semimetal wound gasket disclosed by the utility model, the diameter of the outer ring is increased so that the diameter of the gasket is equal to the flange diameter; by arranging the sealing effect at the outer diameter, a sealing effect is generated inside the outer diameter; therefore, the flange surface, bolt and gasket are sealed, the isolation of the flange surface, bolt and gasket from external air and liquid is effectively protected, the service life of the flange, bolt and gasket is prolonged, and the pollution to the ground environment caused by rust is avoided at the same time.

Description

Environment protection type semimetal spiral wound gasket

Technical field

The utility model relates to a kind of environment protection type semimetal spiral wound gasket.

Background technique

In existing piping flange Sealing, adopt spiral wound gasket on a large scale, then realize sealing through bolt clipping forcee; But because the flanged surface of pipeline and clamping bolt, pad itself are owing to being subject to the external world to have etchant gas and liquid to invade, cause the corrosion of flanged surface and bolt and pad itself, greatly shortened working life and caused the environmental pollution of rusty stain to ground; In addition, as adopt nonmetal whole plane pad, because the relaxation force of nonmetallic material own is high, creep strain is large, Ge road sealing place As time goes on the factor such as vibrations, contraction change, spring-back force seems not enough than this environment protection type semimetal spiral wound gasket, can cause the life-span short and leak.

Model utility content

For addressing the above problem, the utility model proposes a kind of environment protection type semimetal spiral wound gasket, be intended to solve because the above part of traditional spiral wound gasket outer shroud exposes, cause corrosive material, the corrosion of gas to flanged surface, bolt and pad itself, cause the short and pollution of rusty stain to ground environment in working life.

Environment protection type semimetal spiral wound gasket of the present utility model, comprises interior ring, twisting member and outer shroud, also comprises seal ring; Described interior ring, twisting member, outer shroud and seal ring be airtight connection successively from inside to outside; Described twisting member is set to V character form structure, by metal steel band and nonmetal packing material, is entwined; Described interior ring is connected with the concave surface of twisting member; Described outer shroud is connected with the convex surface of twisting member; On described outer shroud, be arranged at intervals with bolt hole.

Further, in described twisting member Thickness Ratio, ring and outer shroud are large.

Further, described twisting member is comprised of metal steel band and nonmetal packing material.

Further, described seal ring is " recessed " font, spill mouth interlock outer shroud external diameter.

Further, described seal ring thickness is close with twisting member.

Environment protection type semimetal spiral wound gasket of the present utility model; increase outer ring diameter; diameter of the present utility model and flange diameter are maintained an equal level; and in outer radius, seal ring is set; make generation sealing effect in external diameter; thereby protected the isolation of flanged surface, bolt and pad with ambient air and liquid itself; effectively controlled the corrosion to flange, bolt and pad itself of corrosive material and gas; extend the working life of flange, bolt, pad itself, avoided the pollution of rusty stain to ground environment simultaneously.

Accompanying drawing explanation

Fig. 1 is plan view of the present utility model;

Fig. 2 is plan view of the present utility model.

Ring in 1-; 2-twisting member; 3-outer shroud; 4-seal ring; 5-bolt hole.

Embodiment

Environment protection type semimetal spiral wound gasket as depicted in figs. 1 and 2, comprises interior ring 1, twisting member 2 and outer shroud 3; Also comprise seal ring 4; Described interior ring 1, twisting member 2, outer shroud 3 and seal ring 4 be airtight connection successively from inside to outside; Described twisting member 2 is set to V font; Described interior ring 1 is connected with the concave surface of twisting member 2; Described outer shroud 3 is connected with the convex surface of twisting member 2; On described outer shroud 3, be arranged at intervals with bolt hole 5.

Wherein, in described twisting member 2 Thickness Ratios, ring 1 and outer shroud 3 are large; Described twisting member 2 is comprised of metal steel band and nonmetal packing material; Described seal ring 4 is " recessed " font, spill mouth interlock outer shroud; Described seal ring 4 thickness are close with twisting member.

Embodiment recited above is described preferred implementation of the present utility model, not design of the present utility model and scope is limited.Do not departing under the prerequisite of the utility model design concept; various modification and improvement that related domain ordinary person makes the technical solution of the utility model; all should drop into protection domain of the present utility model; the technology contents that the utility model is asked for protection, is all documented in claims.

Claims

1. environment protection type semimetal spiral wound gasket, comprises interior ring, twisting member and outer shroud, also comprises seal ring; It is characterized in that: described interior ring, twisting member, outer shroud and seal ring be airtight connection successively from inside to outside; Described twisting member is set to V font; Described interior ring is connected with the concave surface of twisting member; Described outer shroud is connected with the convex surface of twisting member; On described outer shroud, be arranged at intervals with bolt hole.

2. environment protection type semimetal spiral wound gasket according to claim 1, is characterized in that: in described twisting member Thickness Ratio, ring and outer shroud are large.

3. environment protection type semimetal spiral wound gasket according to claim 1, is characterized in that: described twisting member is comprised of metal steel band and nonmetal packing material.

4. environment protection type semimetal spiral wound gasket according to claim 1, is characterized in that: described seal ring is " recessed " font, spill mouth interlock outer shroud external diameter.

5. environment protection type semimetal spiral wound gasket according to claim 1, is characterized in that: described seal ring thickness is close with twisting member.