CN216519720U - Ultra-low temperature ends balanced sealing washer of governing valve - Google Patents
Ultra-low temperature ends balanced sealing washer of governing valve Download PDFInfo
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- CN216519720U CN216519720U CN202123169207.6U CN202123169207U CN216519720U CN 216519720 U CN216519720 U CN 216519720U CN 202123169207 U CN202123169207 U CN 202123169207U CN 216519720 U CN216519720 U CN 216519720U
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Abstract
The utility model provides an ultra-low temperature stop adjusting valve balance seal ring, which comprises a buffer gasket, a guide table, a seal ring, an arc-shaped bulge and a valve seat pressure plate main body, the buffer gasket, the guide platform, the sealing ring, the arc-shaped bulge and the valve seat pressing plate main body are arranged at the groove platform at the end part of the valve body, a valve core is arranged at the groove platform of the valve body, a floating cavity is arranged at the outer side of the valve core of the groove platform, a floating ring which is arranged in a floating cavity in a pressing way is arranged on the inner side of the valve seat pressing plate main body, a valve seat is arranged between the floating ring and the valve core, the outer circular surface of the valve seat is matched and sealed with the inner hole wall of the floating ring through a sealing ring, a plurality of arc-shaped bulges are arranged on the contact surface of the sealing ring and the floating ring, the inner side of the valve seat pressing plate main body is provided with a guide table fixedly connected with the valve seat pressing plate main body, a buffering guide groove in sliding connection with the guide table is arranged in the valve seat, and a buffering gasket fixedly connected with the end part of the guide table is arranged in the buffering guide groove. The utility model has good sealing effect and long service life.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to an ultra-low temperature stop adjusting valve balance sealing ring.
Background
The ball valve has the advantages of simple structure, convenient opening and closing, full-path circulation, small flow resistance and the like, is widely applied to medium conveying pipelines in various fields of national economy, and mainly structurally comprises a valve body, a valve cover, a valve seat, a ball body and a valve rod, wherein the ball body is installed by the valve rod, an inner cavity of the valve body is formed by the ball body and the valve seat, a spherical sealing pair matched with each other is formed by the ball body and the valve seat, the outer circular surface of the valve seat is in sealing fit with an inner hole of a channel of the valve body, and the ball body is driven by a transmission device through the valve rod to rotate for 90 degrees, so that the opening and closing operation of the ball valve is realized. The main disadvantages are: the valve seat is radially and fixedly arranged on the inner wall of the valve body channel, the central line of the valve seat is theoretically fixed on the central line of the valve body channel, however, after the ball body is arranged in the inner cavity of the valve body, the position of the center of the ball body is more or less deviated from the central line of the valve seat, machining errors exist on the spherical surface of the ball body and the spherical surface sealing surface of the valve seat, and the concentricity of the spherical surface of the ball body and the spherical surface sealing surface of the valve seat is deviated, so that the sealing specific pressure in the circumferential direction of the sealing pair is inconsistent when the ball body is matched with the valve seat, the improvement of the sealing performance of the ball valve is restricted, leakage occurs when the error is large, and the main reason that the factory pressure test qualification rate of the existing hard sealing ball valve is low is caused. And increase the wearing and tearing of spheroid and valve seat sealing surface in the use, reduce product life.
Although the bidirectional pressure universal automatic compensation valve seat and pressure plate type valve with the application publication number of CN 107842628A preliminarily solves the problem, the matching sealing effect of the end part of the valve seat and the floating ring and the floating sealing effect between the valve seat and the valve seat between the valve seat pressure plate and the valve seat are poor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a balance sealing ring of an ultra-low temperature stop regulating valve, which aims to solve the problems.
In order to achieve the purpose, the utility model is realized by the following technical scheme: an ultra-low temperature stop adjusting valve balance seal ring comprises a buffer gasket, a guide platform, a seal ring, an arc-shaped bulge and a valve seat pressure plate main body, the buffer gasket, the guide platform, the sealing ring, the arc-shaped bulge and the valve seat pressing plate main body are arranged at the groove platform at the end part of the valve body, a valve core is arranged at the groove platform of the valve body, a floating cavity is arranged at the outer side of the valve core of the groove platform, a floating ring which is arranged in a floating cavity in a pressing way is arranged on the inner side of the valve seat pressing plate main body, a valve seat is arranged between the floating ring and the valve core, the outer circular surface of the valve seat is matched and sealed with the inner hole wall of the floating ring through a sealing ring, a plurality of arc-shaped bulges are arranged on the contact surface of the sealing ring and the floating ring, the inner side of the valve seat pressing plate main body is provided with a guide table fixedly connected with the valve seat pressing plate main body, a buffering guide groove in sliding connection with the guide table is arranged in the valve seat, and a buffering gasket fixedly connected with the end part of the guide table is arranged in the buffering guide groove.
Preferably, a spherical sealing surface which is matched with each other is arranged between the valve core and the valve seat.
Preferably, the arc-shaped protrusion is in a spherical arc shape.
Preferably, the number of the arc-shaped bulges is a plurality of and the arc-shaped bulges are mutually connected and arranged on the outer side of the sealing ring.
Preferably, the buffer gasket is a wear-resistant silica gel ring.
The utility model provides a balance sealing ring of an ultralow temperature stop regulating valve. The method has the following beneficial effects:
(1) in the application, the outer circular surface of the valve seat is matched and sealed with the inner hole wall of the floating ring through the sealing ring to realize primary sealing, a plurality of arc-shaped bulges are arranged on the contact surface of the sealing ring and the floating ring, and the arc-shaped bulges adopt spherical arcs and are in a plurality, so that a plurality of spherical sealing surfaces are formed, and the sealing effect is greatly improved;
(2) the inner side of the valve seat pressing plate main body is provided with a guide table fixedly connected with the valve seat pressing plate main body, and the inside of the valve seat is provided with a buffering guide groove in sliding connection with the guide table, so that the guide table exists between the valve seat pressing plate main body and the valve seat to increase the sealing effect, and meanwhile, the guide table can guide the floating of the valve seat to avoid the problem that the sealing effect is poor or the valve seat is blocked.
(3) The buffer gasket ring fixedly connected with the end part of the guide table is arranged in the buffer guide groove, so that the sealing performance is improved, and the damage caused by the floating of the valve seat is reduced.
Drawings
FIG. 1 is a schematic view of an installation structure of a balance seal ring of an ultra-low temperature check valve of the utility model;
FIG. 2 is an enlarged schematic view of the balance seal ring of the ultra-low temperature stop regulating valve of the present invention shown in FIG. 1A.
In the figure: 1. a valve body; 2. a floating cavity; 3. a floating ring; 4. a valve core; 5. a valve seat pressure plate body; 6. a valve seat; 7. a buffer guide groove; 8. a cushion washer; 9. a guide table; 10. a seal ring; 11. and an arc-shaped bulge.
Detailed Description
The utility model is further described with reference to the following drawings and detailed description:
in the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-2, an ultra-low temperature stop adjusting valve balance seal ring comprises a cushion washer 8, a guide platform 9, a seal ring 10, an arc-shaped protrusion 11 and a valve seat press plate main body 5, wherein the cushion washer 8, the guide platform 9, the seal ring 10, the arc-shaped protrusion 11 and the valve seat press plate main body 5 are installed at the groove platform of the end part of a valve body 1, a valve core 4 is installed at the groove platform of the valve body 1, the groove platform is located at the outer side of the valve core 4 and is provided with a floating cavity 2, the inner side of the valve seat press plate main body 5 is provided with a floating ring 3 which is press-installed in the floating cavity 2, a valve seat 6 is arranged between the floating ring 3 and the valve core 4, the outer circular surface of the valve seat 6 is in fit sealing with the inner hole wall of the floating ring 3 through the seal ring 10, the contact surface of the seal ring 10 and the floating ring 3 is provided with a plurality of arc-shaped protrusions 11, the inner side of the valve seat press plate main body 5 is provided with the guide platform 9 which is fixedly connected with the seal ring, the inside of valve seat 6 is equipped with and leads to the buffering guide way 7 of platform 9 sliding connection, the inside of buffering guide way 7 is equipped with and leads to the buffer washer 8 of platform 9 tip fixed connection.
According to the scheme of the utility model, the valve core 4 and the valve seat 6 are provided with spherical sealing surfaces which are matched with each other.
According to the scheme of the utility model, the arc-shaped bulge 11 is in a spherical arc shape.
According to the above-mentioned aspect of the present invention, the number of the arc-shaped protrusions 11 is several and the arc-shaped protrusions are connected with each other and arranged outside the sealing ring 10.
According to the scheme of the utility model, the buffer gasket 8 is a wear-resistant silica gel ring.
When in use, the outer circular surface of the valve seat 6 is matched and sealed with the inner hole wall of the floating ring 3 through the sealing ring 10 to realize primary sealing, the contact surface of the sealing ring 10 and the floating ring 3 is provided with a plurality of arc-shaped bulges 11, the arc-shaped bulges 11 adopt spherical arcs and are a plurality of, thus a plurality of spherical sealing surfaces are formed, the sealing effect is greatly increased, a guide table 9 connected and fixed with the valve seat pressing plate main body 5 is arranged on the inner side of the valve seat pressing plate main body, a buffering guide groove 7 connected with the guide table 9 in a sliding way is arranged in the valve seat 6, so that the guide table 9 exists between the valve seat pressing plate main body 5 and the valve seat 6 to increase the sealing effect, meanwhile, the guide table 9 can guide the floating of the valve seat 6 to avoid the problem that the floating of the valve seat 6 causes poor sealing effect or blocking, and a buffer gasket 8 fixedly connected with the end part of the guide table 9 is arranged in the buffer guide groove 7 to increase the sealing performance and reduce the damage caused by the floating of the valve seat 6.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the utility model as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The ultra-low temperature stop regulating valve balance sealing ring is characterized by comprising a buffer gasket (8), a guide table (9), a sealing ring (10), an arc-shaped bulge (11) and a valve seat pressing plate main body (5), wherein the buffer gasket (8), the guide table (9), the sealing ring (10), the arc-shaped bulge (11) and the valve seat pressing plate main body (5) are arranged at the groove table of the end part of a valve body (1), a valve core (4) is arranged at the groove table of the valve body (1), a floating cavity (2) is arranged at the outer side of the valve core (4) of the groove table, a floating ring (3) which is arranged in the floating cavity (2) in a pressing manner is arranged at the inner side of the valve seat pressing plate main body (5), a valve seat (6) is arranged between the floating ring (3) and the valve core (4), the outer circular surface of the valve seat (6) is matched and sealed with the inner hole wall of the floating ring (3) through the sealing ring (10), sealing washer (10) with floating ring (3) contact surface is equipped with a plurality of arc archs (11), the inboard of disk seat clamp plate main part (5) is equipped with rather than connecting fixed direction platform (9), the inside of disk seat (6) is equipped with buffering guide way (7) with direction platform (9) sliding connection, the inside of buffering guide way (7) is equipped with and leads platform (9) tip fixed connection's cushion ring (8).
2. The ultra-low temperature stop adjusting valve balance seal ring according to claim 1, characterized in that: and spherical sealing surfaces which are mutually matched are arranged between the valve core (4) and the valve seat (6).
3. The ultra-low temperature stop adjusting valve balance seal ring according to claim 1, characterized in that: the arc-shaped bulge (11) is in a spherical arc shape.
4. The ultra-low temperature stop adjusting valve balance seal ring according to claim 1, characterized in that: the number of the arc-shaped bulges (11) is a plurality of and the arc-shaped bulges are mutually connected and arranged on the outer side of the sealing ring (10).
5. The ultra-low temperature stop adjusting valve balance seal ring according to claim 1, characterized in that: the buffer gasket (8) is a wear-resistant silica gel ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123169207.6U CN216519720U (en) | 2021-12-16 | 2021-12-16 | Ultra-low temperature ends balanced sealing washer of governing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123169207.6U CN216519720U (en) | 2021-12-16 | 2021-12-16 | Ultra-low temperature ends balanced sealing washer of governing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216519720U true CN216519720U (en) | 2022-05-13 |
Family
ID=81497690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123169207.6U Active CN216519720U (en) | 2021-12-16 | 2021-12-16 | Ultra-low temperature ends balanced sealing washer of governing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216519720U (en) |
-
2021
- 2021-12-16 CN CN202123169207.6U patent/CN216519720U/en active Active
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