CN213711858U - Two-way zero leakage C type seal structure of stop valve under high temperature high pressure environment - Google Patents
Two-way zero leakage C type seal structure of stop valve under high temperature high pressure environment Download PDFInfo
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- CN213711858U CN213711858U CN202022940718.2U CN202022940718U CN213711858U CN 213711858 U CN213711858 U CN 213711858U CN 202022940718 U CN202022940718 U CN 202022940718U CN 213711858 U CN213711858 U CN 213711858U
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Abstract
The utility model discloses a bidirectional zero-leakage C-shaped sealing structure of a stop valve in a high-temperature and high-pressure environment, which comprises a valve core component and a C-shaped sealing structure arranged on the valve core component; the valve core component is characterized in that the C-shaped sealing structure comprises a C-shaped sealing ring and a plurality of sealing grooves, wherein the C-shaped sealing ring is arranged on the valve core component; the C-shaped sealing ring comprises a main pipe body and a spiral spring arranged in the main pipe body; the main pipe body is also provided with a coating. The utility model discloses can improve the sealed effect of valve, reduce the damage of sealing washer and sealed face, increase of service life.
Description
Technical Field
The utility model relates to a valve technical field specifically indicates a two-way zero leakage C type seal structure of stop valve under high temperature high pressure environment.
Background
The valve internals of heavy-calibre stop valve generally can select cage single seat balanced type case structure, but general cage single seat case can not satisfy the two-way sealing requirement, in the prior art, the radial seal circle of conventional cage single seat valve internals can select rubber, nonmetal sealing members such as tetrafluoro, provide the high leakage grade, but the temperature resistance of non-metalwork has certain limitation, can not satisfy the sealed effect under the high temperature, and the processing on any surface is not done to conventional C type sealing washer, thereby the requirement of zero leakage can not be satisfied. Therefore, the bidirectional zero-leakage C-type sealing structure of the stop valve in the high-temperature and high-pressure environment is provided.
Disclosure of Invention
The utility model aims at solving the above problems and providing a two-way zero leakage C type seal structure of stop valve under high temperature high pressure environment.
In order to achieve the above purpose, the utility model provides a following technical scheme: a bidirectional zero-leakage C-shaped sealing structure of a stop valve in a high-temperature and high-pressure environment comprises a valve core assembly and a C-shaped sealing structure arranged on the valve core assembly; the valve core component is characterized in that the C-shaped sealing structure comprises a C-shaped sealing ring and a plurality of sealing grooves, wherein the C-shaped sealing ring is arranged on the valve core component; the C-shaped sealing ring comprises a main pipe body and a spiral spring arranged in the main pipe body; the main pipe body is also provided with a coating.
Preferably, the C-shaped sealing rings mounted on the two ends of the valve core assembly are mounted in opposite directions.
Preferably, the main pipe body of the C-shaped seal ring with the plating layer is made of a nickel-chromium-iron alloy material.
Preferably, the plating layer is a silver plating layer.
Preferably, the sealing groove is provided with an installation slope and a sealing slope.
The utility model has the advantages that: the bidirectional sealing structure can improve the sealing effect of the valve, reduce the damage of the sealing ring and the sealing surface and prolong the service life.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the installation of the present invention.
Fig. 3 is a schematic structural diagram of the sealing groove of the present invention.
Illustration of the drawings: 1, a valve core assembly; 101 sealing the groove; 102 installation inclination; 103 sealing slope; 2C type seal ring; 201 a primary tubular body; 202 a coil spring; 203, plating.
Detailed Description
The following description will be made with reference to the accompanying drawings for a bidirectional zero-leakage C-type sealing structure of a stop valve in a high-temperature and high-pressure environment.
Referring to fig. 1, in the present embodiment, the bidirectional zero-leakage C-type sealing structure of the stop valve in a high-temperature and high-pressure environment includes a valve core assembly 1 and a C-type sealing structure disposed on the valve core assembly 1; the valve core component is characterized in that the C-shaped sealing structure comprises a C-shaped sealing ring 2 arranged on the valve core component 1 and a plurality of sealing grooves 101; the C-shaped sealing ring 2 comprises a main pipe body 201 and a spiral spring 202 arranged in the main pipe body 201; the main pipe body 201 is also provided with a plating layer 203; the plating layer 203 is a silver plating layer; by installing the spiral spring 202 in the main pipe body 201, the spiral spring 202 is pressed when the C-shaped sealing ring 2 is installed, and permanent elasticity is provided for a sealing surface, so that auxiliary sealing is formed simultaneously with system pressure, effective sealing is formed under the double action, and the sealing effect is improved; through set up cladding material 203 on being responsible for the body 201, cladding material 203 is the silvered film, and the silvered film is softer, and easy deformation is high temperature resistant to can compensate the coarse texture of sealed face, block up the leakage pipeline, improve sealed effect, also can reduce the damage of C type sealing washer 2 and sealed face, can adapt to more operating mode environment.
Referring to fig. 2, the C-shaped seal rings 2 installed at both ends of the valve core assembly 1 are installed in opposite directions; the main pipe body 201 of the C-shaped sealing ring 2 provided with the plating layer 203 is made of nickel-chromium-iron alloy; the plating layer 203 is a silver plating layer; by adopting the metal C-shaped sealing ring, the high temperature resistance of the C-shaped sealing ring 2 can be improved, and the sealing effect is improved; the C-shaped sealing ring 2 is made of nickel-chromium-iron alloy, and the nickel-chromium-iron alloy has high strength, good toughness and corrosion resistance in high and low temperature environments, so that the service life is prolonged.
Referring to fig. 2-3, the seal groove 101 is provided with an installation slope 102 and a seal slope 103; by providing the installation slope 102 and the sealing slope 103 on the sealing groove 101, the installation can be facilitated and the sealing effect can be improved.
The utility model discloses in, installation C type sealing washer 2 in the sealed slot 101 of case subassembly 1, C type sealing washer 2 divides the opening of going up to opposite direction and installs, when medium on the stop valve from the side flow direction case subassembly 1, install the effect that C type sealing washer 2 above case subassembly 1 is the main seal, install C type sealing washer 2 below case subassembly 1 for the effect of supplementary seal, when the C type sealing washer 2 of initiative seal has the leakage, the effect of protection and compensation has just been played to supplementary sealed C type sealing washer 2, increase sealed effect, when medium on the stop valve flows to case subassembly 1 from the bottom, install C type sealing washer 2 below case subassembly 1 for the effect of main seal, install the effect that C type sealing washer 2 above case subassembly 1 is the supplementary seal.
The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.
Claims (5)
1. A bidirectional zero-leakage C-shaped sealing structure of a stop valve in a high-temperature and high-pressure environment comprises a valve core assembly (1) and a C-shaped sealing structure arranged on the valve core assembly (1); the valve core component is characterized in that the C-shaped sealing structure comprises a C-shaped sealing ring (2) arranged on the valve core component (1) and a plurality of sealing grooves (101); the C-shaped sealing ring (2) comprises a main pipe body (201) and a spiral spring (202) arranged in the main pipe body (201); the main pipe body (201) is also provided with a plating layer (203).
2. The bidirectional zero-leakage C-shaped sealing structure of the stop valve in the high-temperature and high-pressure environment as claimed in claim 1, wherein: the C-shaped sealing rings (2) arranged at the two ends of the valve core assembly (1) are arranged in opposite directions.
3. The bidirectional zero-leakage C-shaped sealing structure of the stop valve in the high-temperature and high-pressure environment as claimed in claim 2, wherein: the main pipe body (201) of the C-shaped sealing ring (2) provided with the plating layer (203) is made of a nickel-chromium-iron alloy material.
4. The bidirectional zero-leakage C-shaped sealing structure of the stop valve in the high-temperature and high-pressure environment as claimed in claim 3, wherein: the plating layer (203) is a silver plating layer.
5. The bidirectional zero-leakage C-shaped sealing structure of the stop valve in the high-temperature and high-pressure environment as claimed in claim 1, wherein: the sealing groove (101) is provided with an installation slope (102) and a sealing slope (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022940718.2U CN213711858U (en) | 2020-12-11 | 2020-12-11 | Two-way zero leakage C type seal structure of stop valve under high temperature high pressure environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022940718.2U CN213711858U (en) | 2020-12-11 | 2020-12-11 | Two-way zero leakage C type seal structure of stop valve under high temperature high pressure environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213711858U true CN213711858U (en) | 2021-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022940718.2U Active CN213711858U (en) | 2020-12-11 | 2020-12-11 | Two-way zero leakage C type seal structure of stop valve under high temperature high pressure environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213711858U (en) |
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2020
- 2020-12-11 CN CN202022940718.2U patent/CN213711858U/en active Active
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| CP01 | Change in the name or title of a patent holder |
Address after: 311400 No.41 Jinqiu Avenue, Fuchun street, Fuyang District, Hangzhou City, Zhejiang Province Patentee after: ZHEJIANG SANFANG CONTROL VALVE Co.,Ltd. Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: 311400 No.41 Jinqiu Avenue, Fuchun street, Fuyang District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG SANFANG CONTROL VALVE Co.,Ltd. Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. |