CN219655317U - High temperature and high pressure resistant ball valve seat structure - Google Patents
High temperature and high pressure resistant ball valve seat structure Download PDFInfo
- Publication number
- CN219655317U CN219655317U CN202320974955.1U CN202320974955U CN219655317U CN 219655317 U CN219655317 U CN 219655317U CN 202320974955 U CN202320974955 U CN 202320974955U CN 219655317 U CN219655317 U CN 219655317U
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- Prior art keywords
- valve seat
- temperature
- resistant
- high temperature
- valve
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- 238000007789 sealing Methods 0.000 claims abstract description 33
- 229910052902 vermiculite Inorganic materials 0.000 claims abstract description 12
- 235000019354 vermiculite Nutrition 0.000 claims abstract description 12
- 239000010455 vermiculite Substances 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims description 14
- 229910003460 diamond Inorganic materials 0.000 claims description 4
- 239000010432 diamond Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 230000005489 elastic deformation Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000011161 development Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a high-temperature-resistant high-pressure-resistant spherical valve seat structure which comprises a valve body, a valve seat and a spherical body, wherein the spherical body is positioned on the left side of the valve seat, a high-temperature-resistant vermiculite sealing ring is arranged between the right side of the valve seat and the valve body, and a high-temperature-resistant creep groove is formed in the inner side of the valve seat. Under the high temperature condition, the ball and the valve seat are made of materials which creep along with the temperature change sealing surface, and the deformation of the valve seat and the ball seal is compensated through the high temperature creep resisting groove on the valve seat and the elastic deformation of the high temperature resistant vermiculite sealing ring, so that the sealing reliability is ensured.
Description
Technical Field
The utility model relates to a high-temperature and high-pressure resistant ball valve seat structure.
Background
Along with the development of society, along with the rapid development of industries such as modern large-scale machinery, petroleum, chemical industry, new energy, nuclear industry and the like, the requirements on the sealing safety and reliability of the valve are increasingly high.
At present, a ball valve for high temperature and high pressure is generally characterized in that the surface of a ball body and the surface of a valve seat are sealed by springs in a pre-tight mode, but under the condition of high temperature, creep stress of spring materials is different and is easy to fail.
Disclosure of Invention
Aiming at the problems, the utility model provides a high-temperature and high-pressure resistant ball valve seat structure, which effectively solves the problems pointed out in the background technology.
The technical scheme adopted by the utility model is as follows:
the utility model provides a high temperature resistant high pressure spheroid disk seat structure, includes valve body, disk seat and spheroid, the spheroid be located the left side of disk seat, be equipped with high temperature resistant vermiculite sealing washer between the right side of disk seat and the valve body, high temperature resistant creep groove has been seted up to the inboard of disk seat.
The highest temperature of the high-temperature-resistant vermiculite sealing ring can bear 1000 ℃.
Preferably, a first metal sealing surface is formed between the valve seat and the ball body, and a second metal sealing surface is formed between the valve seat and the high-temperature-resistant vermiculite sealing ring.
The ball body and the valve seat are mounted in a pre-tightening mode, elastic force is generated through the high-temperature-resistant creep groove, the valve seat and the ball body are guaranteed to form a reliable metal sealing surface, the high-temperature-resistant creep groove is formed in the valve seat, the high-temperature-resistant creep groove changes along with the change of the first metal sealing surface at a high temperature, and the close fit of the valve seat and the ball body is guaranteed.
Preferably, the valve seat and the ball body are provided with diamond PVD processing surfaces at the first metal sealing surface.
The sealing surfaces of the valve seat and the ball body adopt a diamond PVD process, the hardness can reach 4000HV, the hardness is high, the friction coefficient of the coating is low and is 0.05-0.08, the valve torque is low, the structure is simple, the cost is low, and the valve seat and the ball body are suitable for high-temperature and high-pressure structures.
Under the high temperature condition, the ball and the valve seat are made of materials which creep along with the temperature change sealing surface, and the deformation of the valve seat and the ball seal is compensated through the high temperature creep resisting groove on the valve seat and the elastic deformation of the high temperature resistant vermiculite sealing ring, so that the sealing reliability is ensured.
Drawings
Fig. 1 is a schematic cross-sectional view of the present utility model.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
Furthermore, in the description of the present utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The utility model will now be described in further detail with reference to the accompanying drawings by means of specific examples.
As shown in FIG. 1, the high temperature and high pressure resistant ball valve seat structure comprises a valve body 1, a valve seat 2 and a ball body 3, wherein the ball body 3 is positioned on the left side of the valve seat 2, a high temperature resistant vermiculite sealing ring 4 is arranged between the right side of the valve seat 2 and the valve body 1, a high temperature resistant creep groove 5 is formed in the inner side of the valve seat 2, and the high temperature resistant creep groove 5 is an annular groove formed in the inner side of the valve seat 2.
A first metal sealing surface 6 is formed between the valve seat 2 and the ball body 3, and a second metal sealing surface 7 is formed between the valve seat 2 and the high-temperature-resistant vermiculite sealing ring 4.
The valve seat 2 and the ball body 3 are provided with diamond PVD processing surfaces at the first metal sealing surface 6.
The working principle of the utility model is as follows:
during installation, the ball body 3 and the valve seat 2 are in pre-tightening installation, a spring force is generated through the high-temperature-resistant creep groove 5, the valve seat 2 and the ball body 3 are guaranteed to form a first metal sealing surface 6, a second metal sealing surface 7 is formed between the valve seat 2 and the high-temperature-resistant vermiculite sealing ring 4, when the temperature is high, the ball body 3 and the valve seat 2 are in creep along with temperature change, the deformation of the valve seat 2 and the ball body 3 due to the elastic deformation of the high-temperature-resistant creep groove 5 and the high-temperature-resistant vermiculite sealing ring 4 on the valve seat 2 is compensated, and therefore the reliable sealing of the first metal sealing surface 6 is guaranteed, and the valve seat is free from being influenced by high temperature and fails.
Finally, it should be noted that the above list is only specific embodiments of the present utility model. Obviously, the utility model is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present utility model.
Claims (3)
1. The utility model provides a high temperature resistant high pressure spheroid disk seat structure, its characterized in that includes valve body (1), disk seat (2) and spheroid (3), spheroid (3) be located the left side of disk seat (2), be equipped with high temperature resistant vermiculite sealing washer (4) between the right side of disk seat (2) and valve body (1), high temperature resistant creep groove (5) have been seted up to the inboard of disk seat (2).
2. The high-temperature and high-pressure resistant spherical valve seat structure according to claim 1, wherein a first metal sealing surface (6) is formed between the valve seat (2) and the spherical body (3), and a second metal sealing surface (7) is formed between the valve seat (2) and the high-temperature resistant vermiculite sealing ring (4).
3. A high temperature and high pressure resistant ball valve seat structure according to claim 1, wherein the valve seat (2) and the ball (3) are provided with diamond PVD process surfaces at the first metal sealing surface (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320974955.1U CN219655317U (en) | 2023-04-26 | 2023-04-26 | High temperature and high pressure resistant ball valve seat structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320974955.1U CN219655317U (en) | 2023-04-26 | 2023-04-26 | High temperature and high pressure resistant ball valve seat structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219655317U true CN219655317U (en) | 2023-09-08 |
Family
ID=87879925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320974955.1U Active CN219655317U (en) | 2023-04-26 | 2023-04-26 | High temperature and high pressure resistant ball valve seat structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219655317U (en) |
-
2023
- 2023-04-26 CN CN202320974955.1U patent/CN219655317U/en active Active
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