CN215214841U - Plug sealing ring for cryogenic valve - Google Patents
Plug sealing ring for cryogenic valve Download PDFInfo
- Publication number
- CN215214841U CN215214841U CN202121030632.4U CN202121030632U CN215214841U CN 215214841 U CN215214841 U CN 215214841U CN 202121030632 U CN202121030632 U CN 202121030632U CN 215214841 U CN215214841 U CN 215214841U
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- Prior art keywords
- valve
- sealing ring
- metal
- valve body
- valve seat
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- 238000007789 sealing Methods 0.000 title claims abstract description 61
- 239000002184 metal Substances 0.000 claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 229910052755 nonmetal Inorganic materials 0.000 claims description 22
- 238000000034 method Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 2
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of the sealing washer technique and specifically relates to a cryrogenic valve is with general stopper sealing washer, including non-metallic seal circle, metal backpressure ring, a plurality of spring and becket insert, the back of metal backpressure ring and non-metallic seal circle cooperatees, and the equal fixed mounting of a plurality of springs is in non-metallic seal circle, and becket insert inlays inside non-metallic seal circle. The sealing element of the utility model adopts the double-layer spring support, which can effectively compensate the shrinkage of the valve body and the valve seat under the deep cooling working condition; meanwhile, the valve has a pressure self-tightening sealing function, and the influence of the microscopic unevenness of the sealing surfaces of the valve body and the valve seat on the sealing performance of the valve can be reduced.
Description
Technical Field
The utility model relates to a sealing washer technical field especially relates to a cryrogenic valve is with general stopper sealing washer.
Background
A sealed product, broadly defined as a product that controls and prevents the flow of liquid between adjacent localized areas in the device or to the external environment; the sealing element for the cryogenic valve has the advantages that the shrinkage of parts such as a valve body, a valve seat and the like under the ultralow-temperature working condition can be effectively compensated, the sealing element has a pressure self-tightening sealing function, and the spring in the flooding plug sealing ring can store elastic potential energy to realize pressure self-tightening sealing, so that the flooding plug sealing ring is widely applied to the cryogenic valve;
the valve seat structure of the ultralow temperature ball valve used under the deep cooling working condition in the prior art is a DIB-II structure, the valve seat at the downstream end needs to realize a double-piston effect, and the medium from two ends needs to be cut off in the sealing between the valve seat and the valve body, so that the valve seat does not have a self-pressure-relief function, and a large enough installation guide angle is generally designed for conveniently disassembling and assembling the valve seat and the valve body; the installed flood plug seals are typically installed in two sets back-to-back, as shown in fig. 1, however, this configuration has some drawbacks:
1. the two groups of flooding plug sealing rings have the possibility of radial movement under a high-pressure medium, and the sealing points of the flooding plug rings on the two sides are not aligned, so that flooding plug sealing failure is easily caused;
2. the circular spring is directly installed in the arc-shaped groove of the metal ring insert, the phenomenon that metal is in direct contact with metal is generated, and the possibility of shaking, wearing and failure exists when the valve is opened and closed frequently under the deep cooling high-pressure working condition.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the sealing point of the universal plug ring is not centered and the sealing failure of the universal plug is easy to cause in the prior art, and providing the universal plug sealing ring for the cryogenic valve.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the design is a general stopper sealing washer for cryrogenic valve, including non-metallic seal circle, metal backpressure ring, a plurality of spring and becket inserts, the back of metal backpressure ring and non-metallic seal circle cooperatees, and is a plurality of the equal fixed mounting of spring is in non-metallic seal circle, becket inserts inlays inside non-metallic seal circle.
Preferably, the upper end and the lower end of the non-metal sealing ring are respectively provided with a valve body and a valve seat, the valve seat is fixedly installed in the valve body, and the non-metal sealing ring is installed between the inner walls of the valve seat and the valve body.
Preferably, a valve cavity is formed in the valve body, and the valve seat is installed in the valve cavity.
Preferably, a valve body guide angle is formed in one end, in contact with the valve seat, of the valve body, and the other end, in contact with the valve body, of the valve seat is convenient to detach from the valve seat.
Preferably, the both sides of metal back clamping ring are processed into the groove structure, and become "worker" type structure, the back of non-metal seal circle process into with groove assorted convex surface structure, the convex surface of non-metal seal circle cooperatees with the recess of metal back clamping ring.
Preferably, the number of the springs is two, and the outer surfaces of the springs are all coated with a composite structure of PCTFE lips
Preferably, the opening side of the nonmetal sealing ring is provided with a mounting groove matched with the spring, and the spring is fixedly mounted in the corresponding mounting groove.
The utility model provides a pair of cryrogenic valve is with general stopper sealing washer, beneficial effect lies in: the sealing element of the utility model adopts the double-layer spring support, which can effectively compensate the shrinkage of the valve body and the valve seat under the deep cooling working condition; meanwhile, the valve has a pressure self-tightening sealing function, and the influence of the microscopic unevenness of the sealing surfaces of the valve body and the valve seat on the sealing performance of the valve can be reduced.
Drawings
FIG. 1 is a schematic view of a mounting structure of a flooding plug seal ring in the prior art;
FIG. 2 is a schematic structural view of a flooding plug sealing ring for a cryogenic valve according to the present invention;
fig. 3 is an enlarged schematic view of a portion a of fig. 2.
In the figure: the valve comprises a valve body 1, a valve body guide angle 11, a valve cavity 2, a valve seat 3, a valve seat guide angle 31 nonmetal sealing ring 4, a mounting groove 41, a metal back pressure ring 5, a spring 6 and a metal ring insert 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 2-3, the flooding plug sealing ring for the cryogenic valve comprises a nonmetal sealing ring 4, a metal back pressure ring 5, a plurality of springs 6 and a metal ring insert 7, wherein the metal back pressure ring 5 is matched with the back surface of the nonmetal sealing ring 4, two sides of the metal back pressure ring 5 are processed into a groove structure and an I-shaped structure, the back surface of the nonmetal sealing ring 4 is processed into a convex surface structure matched with the groove, and the convex surface of the nonmetal sealing ring 4 is matched with the groove of the metal back pressure ring 5; the function of automatically adjusting the center of the two ends of the metal back pressure ring 5 and preventing the root of the non-metal sealing ring 4 from being extruded out can be achieved.
The number of the springs 6 is two, the outer surfaces of the springs are all of a composite structure coated with PCTFE lip edges, and the metal ring inserts 7 are embedded in the non-metal sealing ring 4; the opening side of the non-metal sealing ring 4 is provided with an installation groove 41 matched with the spring 6, and the spring 6 is fixedly installed in the corresponding installation groove 41, so that direct contact between metal and metal is avoided, and the stability of the spring is ensured; in addition, the metal ring insert 7 is embedded in the nonmetal sealing ring 4, so that the degree of freedom of the nonmetal sealing ring can be limited, and a better supporting effect can be achieved.
The upper end and the lower end of the non-metal sealing ring 4 are respectively provided with a valve body 1 and a valve seat 3, the valve seat 3 is fixedly arranged in the valve body 1, and the non-metal sealing ring 4 is arranged between the valve seat 3 and the inner wall of the valve body 1; the valve body guide angle 11 is arranged at one end of the contact surface of the valve body 1 and the valve seat 3, and the valve seat guide angle 31 is arranged at the other end of the contact surface of the valve body 1 and the valve seat 3, so that the valve seat 3 and the valve body 1 can be conveniently detached.
The sealing element of the utility model adopts the double-layer spring support, which can effectively compensate the shrinkage of the valve body and the valve seat under the deep cooling working condition; meanwhile, the valve has a pressure self-tightening sealing function, and the influence of the microscopic unevenness of the sealing surfaces of the valve body and the valve seat on the sealing performance of the valve can be reduced.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a deep cooling valve is with general stopper sealing washer, includes non-metallic seal circle (4), metal backing ring (5), a plurality of spring (6) and becket inserts (7), its characterized in that, the back of metal backing ring (5) and non-metallic seal circle (4) cooperatees, and is a plurality of the equal fixed mounting of spring (6) is in non-metallic seal circle (4), becket inserts (7) inlay inside non-metallic seal circle (4).
2. The flooding plug sealing ring for the cryogenic valve according to claim 1, characterized in that the upper and lower ends of the non-metal sealing ring (4) are respectively provided with the valve body (1) and the valve seat (3), the valve seat (3) is fixedly installed in the valve body (1), and the non-metal sealing ring (4) is installed between the valve seat (3) and the inner wall of the valve body (1).
3. The flooding plug sealing ring for the cryogenic valve according to claim 2, characterized in that the valve cavity (2) is opened inside the valve body (1), and the valve seat (3) is installed inside the valve cavity (2).
4. The flooding plug sealing ring for the cryogenic valve according to claim 3, characterized in that a valve body guide angle (11) is formed at one end of the contact surface of the valve body (1) and the valve seat (3), and a valve seat guide angle (31) is formed at the other end of the contact surface of the valve body (1) and the valve seat (3), so that the valve seat (3) and the valve body (1) can be conveniently detached.
5. The flooding plug sealing ring for the cryogenic valve according to claim 3, characterized in that the two sides of the metal backpressure ring (5) are processed into a groove structure and an I-shaped structure, the back of the non-metal sealing ring (4) is processed into a convex structure matched with the groove, and the convex surface of the non-metal sealing ring (4) is matched with the groove of the metal backpressure ring (5).
6. The flooding plug sealing ring for the cryogenic valve according to claim 1, characterized in that the opening side of the non-metal sealing ring (4) is provided with a mounting groove (41) matched with the spring (6), and the spring (6) is fixedly mounted in the corresponding mounting groove (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121030632.4U CN215214841U (en) | 2021-05-14 | 2021-05-14 | Plug sealing ring for cryogenic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121030632.4U CN215214841U (en) | 2021-05-14 | 2021-05-14 | Plug sealing ring for cryogenic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215214841U true CN215214841U (en) | 2021-12-17 |
Family
ID=79418969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121030632.4U Active CN215214841U (en) | 2021-05-14 | 2021-05-14 | Plug sealing ring for cryogenic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215214841U (en) |
-
2021
- 2021-05-14 CN CN202121030632.4U patent/CN215214841U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231222 Address after: 363900 No.1 Shunda Road, Gunong Farm, Changtai District, Zhangzhou City, Fujian Province Patentee after: Fujian Huishang Technology Co.,Ltd. Address before: 363900 Yintang Industrial Zone, Gu Nong farm, Changtai County, Zhangzhou City, Fujian Province Patentee before: DATONG RECIPROCITY GROUP CO.,LTD. |
|
| TR01 | Transfer of patent right |