High-temperature-resistant sealing gasket

Abstract

The utility model relates to the technical field of sealing gaskets, and discloses a high-temperature-resistant sealing gasket which solves the problem that an existing sealing gasket is poor in high-temperature-resistant performance and comprises a sealing gasket body. The sealing gasket body is composed of a nitrile rubber sealing gasket base body, a heat conduction and dissipation lining, a plurality of externally-embedded type heat insulation rings, a plurality of internally-embedded type heat insulation rings and a plurality of interlayer heat insulation gaskets, and the heat conduction and dissipation lining is connected to the middle position of the interior of the nitrile rubber sealing gasket base body. The externally-embedded heat insulation rings are symmetrically connected to the top face and the bottom face of the nitrile rubber sealing gasket base body, the internally-embedded heat insulation rings are symmetrically connected to one sides of the top end and the bottom end of the interior of the nitrile rubber sealing gasket base body, and the interlayer heat insulation gaskets are symmetrically connected to the top end and the bottom end of the interior of the nitrile rubber sealing gasket base body. Through the sealing gasket, the sealing gasket has high temperature resistance and heat dissipation performance, and the sealing performance can be guaranteed in a high-temperature environment.

Description

Technical Field

[0001] The utility model belongs to the technical field of gaskets, and particularly relates to a high-temperature resistant gasket. Background Art

[0002] A gasket is a common material used for sealing inside machinery, equipment, pipelines, etc. It can be divided into metal sealing gaskets and non-metal sealing gaskets according to the material.

[0003] Non-metal sealing gaskets are widely used. However, the existing gaskets have relatively single functions and lack good high-temperature resistance. As a result, the gaskets are prone to deformation when exposed to high temperatures, which will affect the sealing effect and cannot meet the usage requirements under complex environmental conditions. Therefore, this application proposes a high-temperature resistant gasket to improve the overall high-temperature resistance of the gasket. Summary of the Utility Model

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a high-temperature resistant gasket, which effectively solves the problem of poor high-temperature resistance of the existing gaskets.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A high-temperature resistant gasket includes a gasket body, which is composed of a nitrile rubber gasket matrix, a heat conduction and dissipation lining, a plurality of externally embedded heat insulation rings, a plurality of internally embedded heat insulation rings and a plurality of interlayer heat insulation washers. The heat conduction and dissipation lining is connected to the middle position inside the nitrile rubber gasket matrix. The externally embedded heat insulation rings are symmetrically connected to the top and bottom surfaces of the nitrile rubber gasket matrix. The internally embedded heat insulation rings are symmetrically connected to one side of the top and bottom ends inside the nitrile rubber gasket matrix. The interlayer heat insulation washers are symmetrically connected to the top and bottom ends inside the nitrile rubber gasket matrix.

[0006] Preferably, annular installation grooves I matching the externally embedded heat insulation rings are respectively opened on the side edges of the top and bottom ends of the nitrile rubber gasket matrix. Annular installation grooves II matching the internally embedded heat insulation rings are respectively opened on one side of the top and bottom ends inside the nitrile rubber gasket matrix.

[0007] Preferably, annular clamping grooves matching the interlayer heat insulation washers are respectively opened at the top and bottom ends inside the nitrile rubber gasket matrix. An annular embedded groove matching the heat conduction and dissipation lining is opened at the middle position inside the nitrile rubber gasket matrix.

[0008] Preferably, a plurality of convex rings I are arranged at the top end of the nitrile rubber gasket matrix, and a plurality of convex rings II are arranged at the bottom end of the nitrile rubber gasket matrix. The convex rings I and the convex rings II are of an integral structure with the nitrile rubber gasket matrix.

[0009] Preferably, the externally-embedded heat insulation ring, the internally-embedded heat insulation ring and the interlayer heat insulation gasket are all composed of a graphite felt layer, a first fiberglass aluminum foil layer and a second fiberglass aluminum foil layer, and the first fiberglass aluminum foil layer and the second fiberglass aluminum foil layer are respectively fixedly connected to both sides of the graphite felt layer.

[0010] Preferably, the heat conduction and heat dissipation inner lining is composed of a heat conduction copper ring and a heat dissipation aluminum ring, and the heat dissipation aluminum ring is fixedly connected to the arc-shaped outer side of the heat conduction copper ring.

[0011] Preferably, a plurality of triangular reinforcement plates are fixedly arranged at the connection part of the heat conduction copper ring and the heat dissipation aluminum ring, and a plurality of annular convex ribs are fixedly arranged at the top end and the bottom end of the heat conduction copper ring.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] (1) During work, by providing a gasket body composed of a nitrile rubber gasket matrix, a heat conduction and heat dissipation inner lining, a plurality of externally-embedded heat insulation rings, a plurality of internally-embedded heat insulation rings and a plurality of interlayer heat insulation gaskets, heat insulation performance and heat conduction and heat dissipation performance can be achieved, avoiding deformation of the nitrile rubber gasket matrix due to excessive temperature, improving the overall heat resistance of the nitrile rubber gasket matrix, and thus improving the service life;

[0014] (2) By providing a first convex ring and a second convex ring, the sealing effect can be improved. By providing externally-embedded heat insulation rings, internally-embedded heat insulation rings and interlayer heat insulation gaskets composed of a graphite felt layer, a first fiberglass aluminum foil layer and a second fiberglass aluminum foil layer, the heat insulation effect can be improved. By providing a heat conduction and heat dissipation inner lining composed of a heat conduction copper ring and a heat dissipation aluminum ring, the heat conduction effect and the heat dissipation effect can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the utility model, and do not constitute a limitation to the utility model.

[0016] In the drawings:

[0017] Figure 1 is a schematic structural diagram of the high-temperature resistant gasket of the utility model;

[0018] Figure 2 is a cross-sectional view of the high-temperature resistant gasket of the utility model;

[0019] Figure 3 is of the utility model Figure 2 partial enlarged view;

[0020] Figure 4 is a partial cross-sectional view of the nitrile rubber gasket matrix of the utility model;

[0021] Figure 5Schematic diagram of the partial structure of the sandwich heat-insulating washer of the present utility model;

[0022] Figure 6 Schematic diagram of the heat-conducting and heat-dissipating inner lining structure of the present utility model;

[0023] Figure 7 Partial cross-sectional view of the heat-conducting and heat-dissipating inner lining of the present utility model;

[0024] In the figure: 1. Sealing gasket body; 2. Nitrile rubber sealing gasket matrix; 3. Heat-conducting and heat-dissipating inner lining; 4. Outer-embedded heat-insulating ring; 5. Inner-embedded heat-insulating ring; 6. Sandwich heat-insulating washer; 7. First annular installation groove; 8. Second annular installation groove; 9. Annular clamping groove; 10. Annular inner-embedded groove; 11. First convex ring; 12. Second convex ring; 13. Graphite felt layer; 14. First fiberglass aluminum foil layer; 15. Second fiberglass aluminum foil layer; 16. Heat-conducting copper ring; 17. Heat-dissipating aluminum ring; 18. Triangular reinforcement plate; 19. Annular rib. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Provided by Figures 1 to 3 A high-temperature resistant sealing gasket of the present utility model includes a sealing gasket body 1, and the sealing gasket body 1 is composed of a nitrile rubber sealing gasket matrix 2, a heat-conducting and heat-dissipating inner lining 3, a plurality of outer-embedded heat-insulating rings 4, a plurality of inner-embedded heat-insulating rings 5 and a plurality of sandwich heat-insulating washers 6. The heat-conducting and heat-dissipating inner lining 3 is connected to the middle position inside the nitrile rubber sealing gasket matrix 2. The outer-embedded heat-insulating rings 4 are symmetrically connected to the top and bottom surfaces of the nitrile rubber sealing gasket matrix 2. The inner-embedded heat-insulating rings 5 are symmetrically connected to one side of the top and bottom ends inside the nitrile rubber sealing gasket matrix 2. The sandwich heat-insulating washers 6 are symmetrically connected to the top and bottom ends inside the nitrile rubber sealing gasket matrix 2;

[0027] During use, the outer-embedded heat-insulating rings 4, the inner-embedded heat-insulating rings 5 and the sandwich heat-insulating washers 6 can effectively block the transfer of heat, avoiding deformation of the entire nitrile rubber sealing gasket matrix 2 due to excessive temperature. The heat-conducting and heat-dissipating inner lining 3 can achieve heat dissipation, further avoiding excessive temperature of the nitrile rubber sealing gasket matrix 2;

[0028] Provided by Figure 3 And Figure 4Given that annular mounting grooves one 7 matching the externally embedded heat insulation ring 4 are provided on both the top and bottom sides of the top and bottom of the nitrile rubber gasket matrix 2, annular mounting grooves two 8 matching the internally embedded heat insulation ring 5 are provided on one side of the top and bottom inside the nitrile rubber gasket matrix 2, annular clamping grooves 9 matching the sandwich heat insulation gasket 6 are provided on both the top and bottom inside the nitrile rubber gasket matrix 2, an annular embedded groove 10 matching the heat conduction and heat dissipation inner lining 3 is provided at the middle position inside the nitrile rubber gasket matrix 2, a number of first convex rings 11 are provided at the top of the nitrile rubber gasket matrix 2, and a number of second convex rings 12 are provided at the bottom of the nitrile rubber gasket matrix 2. The first convex rings 11 and the second convex rings 12 are an integral structure with the nitrile rubber gasket matrix 2;

[0029] The externally embedded heat insulation ring 4 can be installed through the annular mounting groove one 7, the internally embedded heat insulation ring 5 can be installed through the annular mounting groove two 8, the sandwich heat insulation gasket 6 can be installed through the annular clamping groove 9, the heat conduction and heat dissipation inner lining 3 can be installed through the annular embedded groove 10, and the sealing performance between the nitrile rubber gasket matrix 2 and the connecting device can be improved through the first convex rings 11 and the second convex rings 12;

[0030] It is given by Figure 3 and Figure 5 The externally embedded heat insulation ring 4, the internally embedded heat insulation ring 5 and the sandwich heat insulation gasket 6 are all composed of a graphite felt layer 13, a first fiberglass aluminum foil layer 14 and a second fiberglass aluminum foil layer 15. The first fiberglass aluminum foil layer 14 and the second fiberglass aluminum foil layer 15 are respectively fixedly connected to both sides of the graphite felt layer 13;

[0031] Through the combined structure composed of the graphite felt layer 13, the first fiberglass aluminum foil layer 14 and the second fiberglass aluminum foil layer 15, the heat insulation effect can be improved;

[0032] It is given by Figure 3 , Figure 6 and Figure 7 The heat conduction and heat dissipation inner lining 3 is composed of a heat conduction copper ring 16 and a heat dissipation aluminum ring 17. The heat dissipation aluminum ring 17 is fixedly connected to the arc-shaped outer side of the heat conduction copper ring 16. A number of triangular reinforcement plates 18 are fixedly arranged at the connection between the heat conduction copper ring 16 and the heat dissipation aluminum ring 17. A number of annular ribs 19 are fixedly arranged at both the top and bottom of the heat conduction copper ring 16;

[0033] The heat inside the nitrile rubber gasket matrix 2 is transferred through the heat conduction copper ring 16 and then dissipated through the heat dissipation aluminum ring 17, thereby improving the heat dissipation effect. The connection strength between the heat conduction copper ring 16 and the heat dissipation aluminum ring 17 can be improved through the triangular reinforcement plates 18. The heat conduction copper ring 16 can be limited through the annular ribs 19, and at the same time, the strength of the heat conduction copper ring 16 can be improved.

[0034] During work, by setting up a gasket body composed of a nitrile rubber gasket matrix, a heat-conducting and heat-dissipating inner lining, several externally-embedded heat-insulating rings, several internally-embedded heat-insulating rings, and several sandwich heat-insulating washers, it can achieve heat-insulating performance and heat-conducting and heat-dissipating performance, avoid the deformation of the nitrile rubber gasket matrix due to excessive temperature, improve the overall heat resistance of the nitrile rubber gasket matrix, and thus extend the service life; by setting up the first convex ring and the second convex ring, it can improve the sealing effect. By setting up the externally-embedded heat-insulating rings, internally-embedded heat-insulating rings, and sandwich heat-insulating washers composed of a graphite felt layer, a first fiberglass aluminum foil layer, and a second fiberglass aluminum foil layer, it can improve the heat-insulating effect. By setting up a heat-conducting and heat-dissipating inner lining composed of a heat-conducting copper ring and a heat-dissipating aluminum ring, it can improve the heat-conducting effect and the heat-dissipating effect.

Claims

1. A high-temperature resistant gasket, comprising a gasket body (1), characterized in that: The gasket body (1) is composed of a nitrile rubber gasket matrix (2), a heat-conducting and heat-dissipating inner lining (3), a plurality of externally-embedded heat-insulating rings (4), a plurality of internally-embedded heat-insulating rings (5) and a plurality of sandwich heat-insulating washers (6). The heat-conducting and heat-dissipating inner lining (3) is connected to the middle position inside the nitrile rubber gasket matrix (2). The externally-embedded heat-insulating rings (4) are symmetrically connected to the top surface and the bottom surface of the nitrile rubber gasket matrix (2). The internally-embedded heat-insulating rings (5) are symmetrically connected to one side of the top end and the bottom end inside the nitrile rubber gasket matrix (2). The sandwich heat-insulating washers (6) are symmetrically connected to the top end and the bottom end inside the nitrile rubber gasket matrix (2).

2. The high-temperature resistant gasket according to claim 1, wherein: Circular mounting grooves one (7) matching with the externally-embedded heat-insulating rings (4) are formed on the side edges of the top end and the bottom end of the nitrile rubber gasket matrix (2). Circular mounting grooves two (8) matching with the internally-embedded heat-insulating rings (5) are formed on one side of the top end and the bottom end inside the nitrile rubber gasket matrix (2).

3. The high-temperature resistant gasket according to claim 1, characterized in that: Circular clamping grooves (9) matching with the sandwich heat-insulating washers (6) are formed on the top end and the bottom end inside the nitrile rubber gasket matrix (2). A circular internal embedding groove (10) matching with the heat-conducting and heat-dissipating inner lining (3) is formed in the middle position inside the nitrile rubber gasket matrix (2).

4. A high-temperature resistant gasket according to claim 1, characterized in that: A plurality of first convex rings (11) are arranged at the top end of the nitrile rubber gasket matrix (2). A plurality of second convex rings (12) are arranged at the bottom end of the nitrile rubber gasket matrix (2). The first convex rings (11) and the second convex rings (12) are of an integral structure with the nitrile rubber gasket matrix (2).

5. A high-temperature resistant gasket according to claim 1, characterized in that: The externally-embedded heat-insulating rings (4), the internally-embedded heat-insulating rings (5) and the sandwich heat-insulating washers (6) are all composed of a graphite felt layer (13), a first fiberglass aluminum foil layer (14) and a second fiberglass aluminum foil layer (15). The first fiberglass aluminum foil layer (14) and the second fiberglass aluminum foil layer (15) are respectively fixedly connected to both sides of the graphite felt layer (13).

6. The high-temperature resistant gasket according to claim 1, wherein: The heat-conducting and heat-dissipating inner lining (3) is composed of a heat-conducting copper ring (16) and a heat-dissipating aluminum ring (17). The heat-dissipating aluminum ring (17) is fixedly connected to the arc-shaped outer side of the heat-conducting copper ring (16).

7. A high-temperature resistant gasket according to claim 6, characterized in that: A plurality of triangular reinforcing plates (18) are fixedly arranged at the connection position between the heat-conducting copper ring (16) and the heat-dissipating aluminum ring (17). A plurality of circular convex ribs (19) are fixedly arranged at the top end and the bottom end of the heat-conducting copper ring (16).

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