CN215257817U

CN215257817U - Temperature-resistant sealing gasket

Info

Publication number: CN215257817U
Application number: CN202121134856.XU
Authority: CN
Inventors: 田长鑫
Original assignee: Yantai Changxin Sealing Products Co ltd
Current assignee: Yantai Changxin Sealing Products Co ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-12-21
Anticipated expiration: 2031-05-25

Abstract

The utility model discloses a temperature resistant seal gasket, including seal gasket body, seal gasket body's centre is equipped with the through-hole, and the periphery of through-hole is equipped with interior solid fixed ring, seal gasket body's lateral wall is equipped with exterior solid fixed ring, be seal ring between exterior solid fixed ring and the interior solid fixed ring, seal ring's top surface is compound rubber bed course, seal ring's bottom surface is the fiber cloth bed course, be the mica layer between compound rubber bed course and the seal ring, still be equipped with metal gasket in the mica layer. The utility model discloses can keep good sealing performance in high temperature environment, and have high mechanical strength, good plasticity and corrosion resistance.

Description

Temperature-resistant sealing gasket

Technical Field

The utility model relates to a seal gasket technical field specifically is a temperature resistant seal gasket.

Background

The sealing gasket is a widely used sealing element, and the sealing gasket has the function of sealing the internal medium by the blocking function formed by the contact pressure of the sealing material on the joint surface and the elastic restoring force of the sealing material on the fastening external force, so as to prevent the joint surface from leaking. In process equipment of industrial departments in various fields, a sealing gasket occupies an important position, and particularly in the petroleum and chemical industries, a high-temperature-resistant sealing gasket is often needed for connecting pipelines in extreme environments.

Most of the existing sealing gaskets are made of asbestos, but the asbestos is harmful to the environment as a material, so that the sealing gaskets are not favorable for environmental protection, and the existing sealing gaskets cannot bear high temperature, are easy to crack under the high-temperature environment and are inconvenient for people to use. Therefore, there is a need for a gasket seal that can withstand high temperatures and can be used at ultra-low temperatures or under vacuum conditions to seal the flanges with which the gasket contacts.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical defects, the utility model provides a temperature resistant sealing gasket.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a temperature resistant seal gasket, includes the seal gasket body, and the centre of seal gasket body is equipped with the through-hole, and the periphery of through-hole is equipped with interior solid fixed ring, and the lateral wall of seal gasket body is equipped with outer solid fixed ring, is seal ring between outer solid fixed ring and the interior solid fixed ring, seal ring's top surface is the compound rubber bed course, seal ring's bottom surface is the fibre cloth bed course, be the mica layer between compound rubber bed course and the seal ring, still be equipped with the metal shim in the mica layer.

Preferably, the inner fixing ring and the outer fixing ring are made of stainless steel material.

Preferably, the composite rubber cushion layer is mainly made of silicon rubber and butadiene-acrylonitrile rubber, the fiber cloth cushion layer is made of glass fiber, and the metal gasket is mainly made of nickel-based alloy.

Preferably, the sealing gasket main body and the sealing washer are both circular rings.

Preferably, the thickness of the inner fixing ring and the outer fixing ring is 2.86-3.24mm, and the thickness of the sealing gasket is 3-3.4 mm.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the sealing washer is formed by overlapping and stamping the metal gasket nonmetal fillers, has good compression resilience and temperature resistance, is provided with the composite rubber cushion layer and the fiber cloth cushion layer on the surface to increase the sealing performance and the compression resistance, and is widely suitable for various processing environments;

(2) the utility model discloses a further promotion mechanical strength of interior solid fixed ring, prevent through outer solid fixed ring that the deformation plays the positioning action in the high temperature environment, strengthen the locking force, safe practical.

Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or technical solutions in related arts, the drawings used in the description of the embodiments or related arts will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a top view of a temperature resistant sealing gasket of the present invention;

FIG. 2 is a front view of a temperature resistant sealing gasket of the present invention;

in the figure: 1. seal gasket body, 2, interior solid fixed ring, 3, outer solid fixed ring, 4, through-hole, 5, seal ring, 6, compound rubber bed course, 7, fibre cloth bed course, 8, metal gasket, 9, mica layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms such as "above … …", "above … …", "above … …", "bottom", and the like, may be used herein for ease of description to describe the spatial relationship of one device or feature to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Referring to fig. 1, the temperature-resistant sealing gasket comprises a sealing gasket body 1, wherein a through hole 4 is formed in the middle of the sealing gasket body 1, an inner fixing ring 2 is arranged on the periphery of the through hole 4, an outer fixing ring 3 is arranged on the outer side wall of the sealing gasket body 1, a sealing gasket 5 is arranged between the outer fixing ring 3 and the inner fixing ring 2, the top surface of the sealing gasket 5 is a composite rubber cushion layer 6, the bottom surface of the sealing gasket 5 is a fiber cloth cushion layer 7, a mica layer 9 is arranged between the composite rubber cushion layer 6 and the sealing gasket 5, and a metal gasket 8 is further arranged in the mica layer 9.

Specifically, the inner fixing ring 2 and the outer fixing ring 3 are made of stainless steel material.

Further, the composite rubber cushion layer 6 is mainly made of silicon rubber and butadiene-acrylonitrile rubber, the fiber cloth cushion layer 7 is made of glass fiber, and the metal gasket 8 is mainly made of nickel-based alloy.

Furthermore, the sealing gasket main body 1 and the sealing gasket 5 are both in a circular ring shape.

Still further, the thickness of the inner fixing ring 2 and the outer fixing ring 3 is 2.86-3.24mm, and the thickness of the sealing washer 5 is 3-3.4 mm.

The utility model discloses an interior solid fixed ring 2 can play the reinforcing action, and outer solid fixed ring 3 plays the positioning action, and when seal gasket body 1 was compressed, outer solid fixed ring 3 and interior solid fixed ring 2 were in respectively and were drawn and the pressurized state, and at this moment, the energy release that interior solid fixed ring 2 and outer solid fixed ring 3 stored has improved the resilience force of seal gasket body 1, has increased seal gasket adaptability to temperature, pressure change, and can guarantee that seal gasket has sufficient intensity, when the external load was overloaded, not squashed; will the utility model discloses when installing on the flange, seal ring 5 is because soft characteristic itself, can compensate unevenness's gap between seal gasket body 1 and the flange seal face well, form good leakproofness, simultaneously fibre cloth sealing layer 7 can improve seal gasket's toughness, mica layer 9 can improve seal gasket's temperature resistance, metal gasket 8 can improve seal gasket's intensity, seal gasket's material still can improve holistic corrosion resistance simultaneously, in order to deal with different service environment's processing demand.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a temperature resistant seal gasket, includes seal gasket body (1), its characterized in that: the middle of seal gasket body (1) is equipped with through-hole (4), the periphery of through-hole (4) is equipped with interior solid fixed ring (2), the lateral wall of seal gasket body (1) is equipped with outer solid fixed ring (3), be seal ring (5) between outer solid fixed ring (3) and interior solid fixed ring (2), the top surface of seal ring (5) is composite rubber bed course (6), the bottom surface of seal ring (5) is fiber cloth bed course (7), be mica layer (9) between composite rubber bed course (6) and seal ring (5), still be equipped with metal shim (8) in mica layer (9).

2. The temperature-resistant sealing gasket of claim 1, wherein: the inner fixing ring (2) and the outer fixing ring (3) are made of stainless steel materials.

3. The temperature-resistant sealing gasket of claim 1, wherein: the composite rubber cushion layer (6) is mainly made of silicon rubber and butadiene-acrylonitrile rubber, the fiber cloth cushion layer (7) is made of glass fiber, and the metal gasket (8) is mainly made of nickel-based alloy.

4. The temperature-resistant sealing gasket of claim 1, wherein: the sealing gasket main body (1) and the sealing washer (5) are both circular.

5. The temperature-resistant sealing gasket of claim 1, wherein: the thickness of the inner fixing ring (2) and the outer fixing ring (3) is 2.86-3.24mm, and the thickness of the sealing washer (5) is 3-3.4 mm.