CN215635597U - Novel pipeline is with anticorrosive sealed pad - Google Patents
Novel pipeline is with anticorrosive sealed pad Download PDFInfo
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- CN215635597U CN215635597U CN202121640916.5U CN202121640916U CN215635597U CN 215635597 U CN215635597 U CN 215635597U CN 202121640916 U CN202121640916 U CN 202121640916U CN 215635597 U CN215635597 U CN 215635597U
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Abstract
The utility model provides a novel anti-corrosion sealing gasket for a pipeline, which comprises an asbestos ring and an inner gasket, wherein the asbestos ring is sleeved on the outer ring of the inner gasket, and the inner gasket is sequentially provided with a stainless steel layer, a rubber layer and a polytetrafluoroethylene layer from inside to outside.
Description
Technical Field
The utility model relates to the technical field of chemical anti-corrosion gaskets, in particular to a novel anti-corrosion sealing gasket for a pipeline.
Background
In the chemical industry, the problem of pipeline connection generally exists, and a sealing gasket is needed to ensure the sealing property, the corrosion resistance and the like when two pipelines are connected;
the pipe sealing washer that chemical industry used at present mainly includes rubber class, stainless steel class, asbestos class and four fluorine classes, and these four kinds of washers all have certain drawback, for example: the rubber gasket has elasticity and good sealing performance, but the rubber material has different tolerance to a medium, so the universality is limited more; the stainless steel washer has relatively good tolerance, but has higher requirements on the surface processing of the workpiece, and the reusability of the washer is low; the asbestos gasket has good tolerance to a medium, but has small elasticity and poor sealing property; the tetrafluoro gasket has good tolerance to a medium, but has high cost, and also has the problems of insufficient elasticity and poor sealing effect, and the existing tetrafluoro gasket is mostly characterized in that a sharp-angled tetrafluoro shell covers other materials (such as asbestos, stainless steel and the like), so that the service life is relatively short;
the anti-corrosion flat washer with the application number of 'CN 202021341673.0' in the prior art comprises a flat washer body, wherein a first drainage groove is formed in one side of the flat washer body, a first notch is formed in the middle of the flat washer body, a second notch is formed in the middle of the first notch, a rubber pad is sleeved outside the first notch, a plurality of rubber lugs are laid at the bottom end of the flat washer body, a rubber embedded rod ring of the device is tightly attached to the surface of a screw rod, rainwater is accumulated at the rubber embedded rod ring, accumulated water at a screw cap and the rubber pad and accumulated water at the rubber embedded rod ring finally flow out of the first drainage groove, so that the corrosion caused by the reaction of rainwater and other liquids in the screw rod is avoided, the service life of the flat washer is prolonged, when a connecting piece fluctuates, small lugs and rubber lugs at the top end of the rubber pad body play a good role in shock absorption, and the looseness of the flat washer caused by vibration is avoided, the utility of the flat gasket is improved, and the anti-corrosion flat gasket is made of a single rubber material, so that the disadvantages listed above still exist.
Therefore, in order to make up for the defects of the gasket made of the single material, the utility model aims to design a novel anti-corrosion sealing ring for the pipeline, which is made of a composite material and solves the problems that the rubber gasket is unstable in medium tolerance, the stainless steel gasket is high in requirements on workpiece processing, the asbestos gasket is lack of elasticity, the tetrafluoro gasket is low in cost and high in elasticity and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a novel anti-corrosion sealing gasket for a pipeline, which aims to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a novel anticorrosive sealed pad for pipeline, includes asbestos ring and interior packing ring, asbestos ring suit is in interior packing ring outer lane, interior packing ring has set gradually stainless steel layer, rubber layer and polytetrafluoroethylene layer from inside to outside.
Preferably, the asbestos ring is provided with a plurality of bolt through holes along the axis of the asbestos ring in an annular array manner.
Preferably, the stainless steel layer is of an integrated annular structure, and the stainless steel layer and the inner gasket are arranged in a concentric circle manner.
Preferably, the stainless steel layers are arranged in a ring-shaped net structure in the inner gasket.
Preferably, the stainless steel layer is a plurality of annular stainless steel rings with different diameters, and the annular stainless steel rings and the inner gasket are arranged in a concentric circle shape.
Preferably, the rubber layer is an ethylene propylene diene monomer rubber layer.
Preferably, the thickness D of the polytetrafluoroethylene layer is 0.5-0.8 mm.
Compared with the prior art, the utility model has the beneficial effects that:
1. the outermost layer of the gasket is wrapped by the polytetrafluoroethylene material with excellent corrosion resistance, and the rubber layer formed by the ethylene propylene diene monomer arranged in the gasket has excellent weather resistance, ozone resistance, heat resistance, acid and alkali resistance, water vapor resistance, color stability, electrical property, oil filling property and normal temperature fluidity, and can be used for a long time at 120 ℃;
2. the polytetrafluoroethylene gasket has excellent surface flatness, and the ethylene propylene diene monomer rubber filled in the middle has good elasticity, so that in the assembling process, the gasket can be well attached to a flange mounting surface, the requirement on the machining flatness of a flange sealing surface is lowered, a good sealing effect is achieved, and the risk of medium leakage at the connecting position of a pipeline is effectively reduced;
3. the asbestos ring is sleeved outside the gasket, the installation size of the asbestos ring is consistent with that of a matched flange, the asbestos ring is used as a positioning ring during assembly, and the gasket is directly positioned in the middle of a pipeline, so that the structure is simple to operate on site and accurate in positioning, the influence of gasket assembly deflection on the flow of the pipeline and the service life of the gasket in the assembly process of workers is avoided, and meanwhile, the labor intensity and the operation difficulty of site operation are reduced;
4. the outer side of the inner gasket is made of asbestos materials as the positioning support, compared with the gasket which is completely coated and positioned by the tetrafluoro shell, the cost of the gasket is reduced, meanwhile, the service life of the gasket is prolonged, the problems of temporary production halt and machine halt caused by abnormal leakage of a sealing element at a pipeline joint can be remarkably reduced, and the later-stage use and maintenance cost is remarkably reduced.
The sealing gasket has the advantages of excellent corrosion resistance, good sealing property, convenient assembly and considerable economy, greatly prolongs the service life of the sealing gasket by compounding various materials, has a remarkable effect of reducing the later-stage use and maintenance cost, and is suitable for wide popularization.
Drawings
FIG. 1 is a perspective view of the overall structure of the novel anti-corrosion sealing gasket for pipelines of the present invention;
FIG. 2 is a schematic front view of the novel corrosion-resistant sealing gasket for pipelines of the present invention;
FIG. 3 is a schematic cross-sectional view of the novel corrosion-resistant sealing gasket for pipelines of the present invention;
fig. 4 is a schematic view of the installation structure of the novel anti-corrosion sealing gasket for the pipeline.
In the figure: 1 asbestos ring, 2 inner washers, 3 stainless steel layers, 4 rubber layers, 5 polytetrafluoroethylene layers, 6 bolt through holes and 7 flange connecting pipes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
referring to fig. 1-4, the present invention provides a technical solution:
the utility model provides a novel anticorrosive sealed pad for pipeline, includes asbestos ring 1 and interior packing ring 2, and 1 suit of asbestos ring is in 2 outer lanes of interior packing ring, and interior packing ring 2 has set gradually stainless steel layer 3, rubber layer 4 and polytetrafluoroethylene layer 5 from inside to outside.
The stainless steel layer 3 is used as a basic framework to ensure the effective transmission of pressing force when the inner gasket 2 is pressed, so that the pressed surface is uniformly stressed, and the better stability of the gasket can be ensured at higher temperature (above 100 ℃); the polytetrafluoroethylene layer 5 is used as a main anticorrosive layer, can resist almost all acid and alkali media, and ensures the stability of the anticorrosive performance of the gasket and the applicability of various media; the rubber layer 4 is added between the stainless steel layer 3 and the polytetrafluoroethylene layer 5 in a pouring mode and serves as a connecting layer between the stainless steel layer 3 framework and the polytetrafluoroethylene layer 5, certain elastic deformation capacity is provided for the polytetrafluoroethylene layer 5, and the sealing performance of the inner gasket 2 is better improved
Preferably, the asbestos ring 1 is provided with a plurality of bolt through holes 6 in an annular array along the axial center thereof, and the bolt through holes 6 are used for mounting bolts to pass through.
Preferably, the stainless steel layer 3 is of an integral annular structure, the stainless steel layer 3 and the inner gasket 2 are arranged in a concentric circle manner, and in this embodiment, the stainless steel layer 3 is a stainless steel ring, so that the novel anticorrosion sealing gasket for the pipeline has high hardness inside and is prevented from deforming.
Preferably, the stainless steel layers 3 are arranged in the inner gasket 2 in an annular net-shaped structure, in this embodiment, the stainless steel layers 3 arranged in a net shape have certain flexibility, and simultaneously, the tensile strength is improved, and compared with the stainless steel ring-shaped structure arranged in an integrated manner, the stainless steel layers 3 arranged in a net shape have better plasticity, so that good fit between the gasket and the flange mounting surface is further ensured.
Preferably, the stainless steel layer 3 is a plurality of annular stainless steel rings with different diameters, and the plurality of annular stainless steel rings and the inner gasket 2 are arranged in a concentric circle shape, in this embodiment, the stainless steel layer 3 is a plurality of stainless steel rings with different diameters arranged in a concentric circle, and in the installation process of the novel anti-corrosion sealing gasket for pipelines using the inner gasket 2, due to a certain interval between adjacent stainless steel rings, the installation section of the inner gasket 2 is wavy, and the sealing performance of the gasket is further improved.
Preferably, the rubber layer 4 is an ethylene propylene diene monomer rubber layer, and compared with common rubber, the ethylene propylene diene monomer rubber layer has the advantages of weather resistance, ozone resistance, heat resistance, acid and alkali resistance, water vapor resistance, color stability, electrical property, oil filling property and normal temperature fluidity, and can be used for a long time at 120 ℃.
Preferably, the thickness D of the polytetrafluoroethylene layer 5 is 0.5-0.8mm, and the excellent corrosion resistance of the polytetrafluoroethylene material can be better exerted by arranging the polytetrafluoroethylene layer 5 with the thickness of 0.5-0.8mm, and meanwhile, compared with a gasket which is completely coated and positioned by the polytetrafluoroethylene material, the material cost is greatly reduced.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a novel anticorrosive sealed pad for pipeline, includes asbestos ring (1) and interior packing ring (2), its characterized in that: the asbestos ring (1) is sleeved on the outer ring of the inner gasket (2), and the inner gasket (2) is sequentially provided with a stainless steel layer (3), a rubber layer (4) and a polytetrafluoroethylene layer (5) from inside to outside.
2. The novel anti-corrosion sealing gasket for the pipeline as claimed in claim 1, wherein: the asbestos ring (1) is provided with a plurality of bolt through holes (6) along the axis of the asbestos ring in an annular array manner.
3. The novel anti-corrosion sealing gasket for the pipeline as claimed in claim 2, wherein: stainless steel layer (3) formula annular structure as an organic whole, stainless steel layer (3) and inner washer (2) are concentric circles formula setting.
4. The novel anti-corrosion sealing gasket for the pipeline as claimed in claim 2, wherein: the stainless steel layers (3) are arranged in the inner gasket (2) in an annular net structure.
5. The novel anti-corrosion sealing gasket for the pipeline as claimed in claim 2, wherein: the stainless steel layer (3) is a plurality of annular stainless steel rings with different diameters, and the annular stainless steel rings and the inner washer (2) are arranged in a concentric circle shape.
6. The novel corrosion-resistant sealing gasket for the pipeline as claimed in claim 3, 4 or 5, wherein: the rubber layer (4) is an ethylene propylene diene monomer rubber layer.
7. The novel corrosion-resistant sealing gasket for the pipeline as claimed in claim 3, 4 or 5, wherein: the thickness D of the polytetrafluoroethylene layer (5) is 0.5-0.8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121640916.5U CN215635597U (en) | 2021-07-19 | 2021-07-19 | Novel pipeline is with anticorrosive sealed pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121640916.5U CN215635597U (en) | 2021-07-19 | 2021-07-19 | Novel pipeline is with anticorrosive sealed pad |
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| Publication Number | Publication Date |
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| CN215635597U true CN215635597U (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121640916.5U Active CN215635597U (en) | 2021-07-19 | 2021-07-19 | Novel pipeline is with anticorrosive sealed pad |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811224B (en) * | 2022-06-01 | 2023-09-12 | 濮阳市恒信橡塑有限公司 | High-pressure-resistant rubber sealing ring for oil field |
-
2021
- 2021-07-19 CN CN202121640916.5U patent/CN215635597U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811224B (en) * | 2022-06-01 | 2023-09-12 | 濮阳市恒信橡塑有限公司 | High-pressure-resistant rubber sealing ring for oil field |
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