Universal composite flange sealing gasket

Abstract

The utility model belongs to the technical field of flange gaskets, and particularly discloses a universal composite flange sealing gasket which comprises a gasket body, a plurality of annular grooves are formed in the gasket body, a magnet ring is arranged in the annular groove located on the inner side, a composite layer is arranged in the annular groove close to the magnet ring, and a wear-resistant layer is arranged in the annular groove close to the composite layer. A graphite layer is arranged in the annular groove located in the outer side, the magnet rings, the high-temperature-resistant layer, the wear-resistant layer and the graphite layer are symmetrically installed, an elastic band is arranged on the gasket body, a hook-and-loop fastener is arranged on the elastic band, the elastic band bypasses the gasket body and is connected with the hook-and-loop fastener in a hook-and-loop fastener mode, and hand levers are connected to the two sides of the gasket body in a threaded mode. The composite flange sealing gasket adopts a groove combined structure, can be reused only by replacing a failed sealing material, adopts a magnet design, can be mounted by one person, is relatively convenient to mount, realizes accurate positioning and mounting by virtue of a hand lever, and reduces the labor intensity of workers.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange gasket technical field, concretely relates to a general composite flange sealing gasket. BACKGROUND

[0002] The working principle of the gasket is mainly through its elasticity and compressibility to generate friction between the connecting parts, thereby achieving the sealing effect. When the pipeline system is under pressure, the gasket will be compressed, and the friction between its surface and the connecting parts will increase, thereby preventing leakage. The sealing gasket of the pipeline connecting flange is widely used in the connection of pipeline equipment and containers in the petroleum, chemical, pharmaceutical, electric power, water supply and other industries. According to different application scenarios and requirements, appropriate types and materials of sealing gaskets are selected to ensure the safe operation of the pipeline system.

[0003] During on-site use, due to different working conditions, the gasket materials and forms used are also different, and the corresponding material sealing gasket must be replaced. However, since the gap between the flange pieces is very small, it is very troublesome to replace it, and the centering position of the newly replaced sealing gasket cannot be quickly adjusted. Once the placement is offset, it will cause leakage. Therefore, a flange gasket suitable for multiple working conditions and convenient to adjust the centering position is needed. SUMMARY

[0004] The utility model aims at providing a general composite flange sealing gasket to solve the problem that due to different working conditions, the gasket materials and forms used are also different, and the corresponding material sealing gasket must be replaced. However, since the gap between the flange pieces is very small, it is very troublesome to replace it, and the centering position of the newly replaced sealing gasket cannot be quickly adjusted. Once the placement is offset, it will cause leakage.

[0005] To achieve the above purpose, the utility model provides a basic scheme: a general composite flange sealing gasket, including gasket body, the positive and negative two sides of gasket body are equipped with a plurality of annular grooves, a plurality of annular grooves are symmetrical, the annular groove in the inside is equipped with a magnet ring, the annular groove close to the magnet ring is equipped with a composite layer, the annular groove close to the composite layer is equipped with a wear-resistant layer, the annular groove in the outside is equipped with a graphite layer, the magnet ring, the high temperature resistant layer, the wear-resistant layer and the graphite layer are all symmetrical installation, the gasket body is equipped with an elastic band, the fixed end of elastic band is located in the inner edge of gasket body, the fixed end of elastic band is equipped with a magic tape hook surface, the movable end of elastic band is equipped with a magic tape hair surface, the magic tape hair surface on the movable end of elastic band is buckled and connected with the magic tape hook surface on the fixed end around the outer edge of gasket body, the two sides of gasket body are screw connected with hand rods.

[0006] The utility model discloses a working principle at: the magnet ring on the gasket body is together with the flange magnetic suction, plays the positioning effect, avoids the gasket displacement in the flange fastening process, and graphite layer is sealed to the pipeline of relatively high environmental temperature, heating furnace gas sealing pipeline, flame nozzle sealing etc., when installing, the position adjustment of gasket is realized through hand lever, after adjusting, hand lever can be removed, and the cooperation of elastic band and magic tape can make sealing material and gasket body closely adhere in use, and when replacing sealing material, it can be replaced by opening elastic band, and the magnet ring, composite layer, wear -resisting layer and graphite layer are further enhanced in the originally and annular recess clamping state tightness.

[0007] The utility model discloses the beneficial effect lies in: composite flange sealing gasket adopts groove combination structure, just can be reused by replacing the invalid sealing material;The design of hand lever can make composite flange sealing gasket realize accurate positioning installation;Magnet design is adopted, and it is more convenient when installing, and one person can complete installation.

[0008] Scheme two, this is the preferred basis scheme, and the composite layer is glass fiber reinforced rubber material.Rubber has excellent elasticity, and after combining with glass fiber, the elasticity characteristics of rubber are reserved, and the gasket can recover to the original state after bearing pressure deformation due to the limiting effect of glass fiber, better guaranteeing the sealing effect, adapting to the working conditions such as vibration, impact and a certain degree of displacement in the equipment operation process, and ensuring the tightness and stability of flange connection.

[0009] Scheme three, this is the preferred basis scheme, and the end of hand lever is fixedly connected with a circular ring.The circular ring on the hand lever can conveniently adjust the sealing gasket between the two flanges, and it is relatively labor-saving compared with a single hand lever.

[0010] Scheme four, this is the preferred basis scheme, and the material of gasket body is nodular cast iron material.Compared with other materials of flange gasket, the price of nodular cast iron gasket is relatively low, and it has high strength, good corrosion resistance and sealing performance, long service life, and can reduce cost.

[0011] Scheme five, this is the preferred basis scheme, and the wear -resisting layer is brass material.The low friction coefficient of brass layer can reduce the friction force between the gasket and the flange surface, make the installation and disassembly process more smooth, reduce the operation difficulty, and also reduce the wear of the flange surface and the gasket.

[0012] Scheme six, which is preferred to the basic scheme, the gasket surface is sprayed with a corrosion-resistant coating, and the corrosion-resistant coating is a silicone coating. The silicone coating has good water resistance, can maintain the integrity of the coating in a humid environment, effectively blocks water, has good resistance to oil, and can be used for a long time at a temperature of 200-300 DEG C or even higher, has excellent high temperature resistance, and has good resistance to acids, bases, salts and other chemicals, and good corrosion resistance. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a front view of a universal composite flange sealing gasket of the utility model;

[0014] Figure 2 is an exploded view of a universal composite flange sealing gasket of the utility model;

[0015] Figure 3 is a top view of a universal composite flange sealing gasket of the utility model without an elastic band;

[0016] Figure 4 is Figure 3 is a sectional view of A-A in figure DETAILED DESCRIPTION

[0017] The utility model will be further described in detail through specific embodiments:

[0018] The reference signs in the drawings of the specification include: 1. gasket body, 2. annular groove, 3. magnet ring, 4. composite layer, 5. wear-resistant layer, 6. graphite layer, 7. elastic band, 8. magic tape hook surface, 9. magic tape hair surface, 10. hand rod, 11. circular ring.

[0019] EMBODIMENT

[0020] The embodiment is basically as shown in the accompanying drawings Figure 1 to the accompanying drawings Figure 4The utility model discloses a general composite flange sealing gasket, including gasket body 1, the material of gasket body 1 is nodular cast iron material, the positive and negative two sides of gasket body 1 are equipped with a plurality of annular grooves 2, the annular groove 2 in the inside is equipped with magnet ring 3, the annular groove 2 close to magnet ring 3 is equipped with composite layer 4, and the composite layer 4 is glass fiber reinforced rubber material, the annular groove 2 close to composite layer 4 is equipped with wear layer 5, and the wear layer 5 is brass material, the annular groove 2 in the outside is equipped with graphite layer 6, and magnet ring 3, composite layer 4, wear layer 5 and graphite layer 6 are all symmetrical installation, and gasket body 1 surface is sprayed with corrosion -resistant coating, and the corrosion -resistant coating is silicone paint, and gasket body 1 is equipped with two elastic bands 7, and the fixed end of two elastic bands 7 is located in the inside of gasket body 1, and the fixed end of two elastic bands 7 is equipped with magic tape hook face 8, and the movable end of two elastic bands 7 is equipped with magic tape nap surface 9, and the magic tape nap surface 9 on the movable end of each elastic band 7 is around the outside of gasket body 1 and is adhered with the magic tape hook face 8 on the fixed end and is buttoned connection, and the both sides of gasket body 1 are connected with hand bar 10, and the end of hand bar 10 is fixedly connected with circular ring 11.

[0021] The embodiment of the present application is:

[0022] When using the composite flange sealing gasket, first, the hand bar 10 is combined with the gasket body 1, then the circular ring 11 on the hand bar 10 is held by hand to install the composite flange sealing gasket to the appropriate position, so that one side of the composite flange sealing gasket is tightly attached to one side of the flange, and the composite flange sealing gasket is adsorbed on the flange surface, then the bolts connected with the flange are installed, if it is found that the position of the composite flange sealing gasket is not appropriate during the installation process, the hand bar 10 can be driven by the circular ring 11 to adjust the composite flange sealing gasket, after the flange bolts are connected and fastened, the circular ring 11 is rotated to detach the hand bar 10 from the gasket body 1, and the installation of the composite flange sealing gasket is completed.

[0023] The above is only an embodiment of the utility model, and the specific structure and characteristics of the scheme are not described in detail. It should be noted that for those skilled in the art, without departing from the structure of the utility model, some modifications and improvements can be made, which should also be considered as the protection scope of the utility model, and these will not affect the effect and practicality of the utility model. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A universal composite flange gasket, characterized by, The utility model provides a gasket body (1), the gasket body (1) is equipped with a plurality of annular grooves (2) on both sides, a plurality of annular grooves (2) are symmetrical, the annular groove (2) in inside is equipped with magnet ring (3), the annular groove (2) close to magnet ring (3) is equipped with composite layer (4), the annular groove (2) close to composite layer (4) is equipped with wear -resisting layer (5), the annular groove (2) in outside is equipped with graphite layer (6), magnet ring (3), composite layer (4), wear -resisting layer (5) and graphite layer (6) are all symmetrical installation, the gasket body (1) is equipped with two elastic bands (7), and the fixed end of two elastic bands (7) is located in the inner edge of gasket body (1), and the fixed end of two elastic bands (7) is equipped with magic tape hook face (8), and the movable end of two elastic bands (7) is equipped with magic tape nap surface (9), and the magic tape nap surface (9) on the movable end of each elastic band (7) is passed over the outer edge of gasket body (1) and is adhered with the magic tape hook face (8) on the fixed end and is buckled connection, and the both sides of gasket body (1) are screw -threaded and are connected with hand lever (10).

2. A universal composite flange gasket according to claim 1, wherein, The end of the hand lever (10) is fixedly connected with a circular ring (11).

3. A universal composite flange gasket according to claim 1, wherein, The composite layer (4) is made of glass fiber reinforced rubber material.

4. A universal composite flange gasket according to claim 1, wherein, The gasket body (1) is made of nodular cast iron material.

5. A universal composite flange gasket according to claim 1, wherein, The wear -resisting layer (5) is made of brass material.

6. A universal composite flange gasket according to claim 1, wherein, The surface of the gasket body (1) is sprayed with a corrosion -resistant coating, and the corrosion -resistant coating is made of silicone paint material.

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