CN203836266U - Upper-mounted self-sealing ball valve - Google Patents
Upper-mounted self-sealing ball valve Download PDFInfo
- Publication number
- CN203836266U CN203836266U CN201420251354.9U CN201420251354U CN203836266U CN 203836266 U CN203836266 U CN 203836266U CN 201420251354 U CN201420251354 U CN 201420251354U CN 203836266 U CN203836266 U CN 203836266U
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- valve
- valve seat
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- shift
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Abstract
The utility model relates to an upper-mounted self-sealing ball valve which comprises a valve body, a valve seat, a ball, a valve rod and a valve cover. Sealing faces of the ball and the valve seat are in hard sealing fit, and the valve seat is of a floating type structure; the upper-mounted self-sealing ball valve is characterized in that a pushing-open device is arranged between the ball and the valve seat and composed of a pushing ring, a pin roller, a locating shaft and a moving ring; the valve seat is pushed by the pushing-open device to be open in the rotating process of the ball to enable the valve seat to be out of contact with the ball, non-contact opening and closing of the sealing faces of the ball and the valve seat are achieved, and the upper-mounted self-sealing ball valve has the advantages of being reliable in sealing performance, long in service life and the like. The upper-mounted self-sealing ball valve is used for high-temperature and high-pressure valves of boiler feed water systems of petroleum, natural gas and thermal generator sets.
Description
Technical field
The utility model belongs to valve field, particularly about a kind of ball valve.The utility model is applicable to the high-temperature high pressure valve of the feed water system of boiler of oil, rock gas and thermal power generation unit.
Background technique
In the high temperature and high pressure condition of oil, rock gas, electric power system, more use hard seal ball valve.The structure of existing hard seal ball valve is generally made up of valve body, spheroid, valve seat, valve rod, valve gap, spheroid and sealing surface of seat adopt and are firmly sealed and matched, to use worst hot case, valve seat adopts floating structure, prevent that high temperature spheroid and valve seat high-temperature expansion are stuck, its major defect is in valve opening and closing process, when valve rod drives spheroid rotation, there are contact wearing and tearing in spheroid and sealing surface of seat, affects the sealability of ball seal face and sealing surface of seat and the working life of product.
Summary of the invention
The purpose of this utility model is the shortcoming existing for prior art, provides that a kind of sealability is reliable, the upper dress formula selfsealings ball valve of long product lifecycle.
The technical solution of the utility model comprises valve body, valve seat, spheroid, valve rod, valve gap, and spheroid and sealing surface of seat adopt and be firmly sealed and matched, and valve seat adopts floating structure; Be to be mainly provided with ejection means between spheroid and valve seat, this ejection means is made up of throw-out collar, roller, positioning shaft, shift(ing) ring; Throw-out collar is an annulus, is arranged on the spheroid table top perpendicular to valve rod center line; Roller is arranged in shift(ing) ring by positioning shaft, roller is a cylindrical body, this cylindrical center hole coordinates with positioning shaft is moving, shift(ing) ring is circle structure, be inlaid between valve channel inner round wall and valve seat cylindrical wall, the periphery of shift(ing) ring coordinates with valve channel inner round wall is moving, and shift(ing) ring is fixedly connected with valve seat cylindrical wall; The center line of roller is in the plane at valve rod center line and valve channel center line place, on throw-out collar, be shaped with two arc grooves, the central position of arc groove is being passed through in valve rod center line and the plane perpendicular to spheroid channel centerline, and the radius of arc of arc groove is greater than the radius of roller.
In above technological scheme, shift(ing) ring is arranged between valve channel inner round wall and valve seat cylindrical wall by retaining ring, retaining ring is an annulus, and retaining ring inner ring surface is inlaid in the circular groove of valve seat cylindrical wall, and retaining ring is near the plane of sealing surface of seat one side and the plane contact of shift(ing) ring one side.
The utility model has the advantages that between spheroid and valve seat and be provided with ejection means, in spheroid rotary course, ejection means is pushed valve seat open, valve seat and spheroid are disengaged, reach the contactless keying of spheroid and sealing surface of seat, there is the features such as sealability is reliable, long product lifecycle.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of ejection means in the utility model Fig. 1.
Embodiment
Upper dress formula selfsealings ball valve as shown in Figure 1, comprise valve body 1, valve seat 4, spheroid 3, valve rod 11, valve gap 12, spheroid 3 adopts and is firmly sealed and matched with valve seat 4 sealing surfaces, valve seat 4 adopts floating structure, spheroid 3 adopts gudgeon formula to fix ball, between its lower gudgeon and valve body 1 axis hole, be provided with Lower shaft sleeve 2, Lower shaft sleeve 2 upper-end surfaces and lower gudgeon are radially established thrust bearing between convex shoulder, upper gudgeon center is fixedly connected with valve rod 11 lower ends, upper gudgeon radially and between valve gap 12, establish Upper shaft sleeve 10, arranges self sealing structure between valve gap 12 and valve body 1; Between spheroid 3 and valve seat 4, be provided with ejection means, this ejection means is made up of throw-out collar 9, roller 6, positioning shaft 8, shift(ing) ring 7; Throw-out collar 9 is an annulus, is arranged on spheroid 3 table tops perpendicular to valve rod 11 center lines, and described spheroid 3 table tops are to manufacture respectively plane on the spheroid 3 in upper gudgeon and lower gudgeon outside, and throw-out collar 9 is fixedly mounted in this plane by screw; Roller 6 is arranged in shift(ing) ring 7 by positioning shaft 8, roller 6 is a cylindrical body, this cylindrical center hole coordinates with positioning shaft 8 is moving, roller 6 can rotated on positioning shaft 8, shift(ing) ring 7 is circle structure, is inlaid between valve body 1 passage inner round wall and valve seat 4 cylindrical walls, and the periphery of shift(ing) ring 7 coordinates with valve body 1 passage inner round wall is moving, shift(ing) ring 7 is fixedly connected with valve seat 4 cylindrical walls, and shift(ing) ring 7 and valve seat 4 one are moved; The center line of roller 6 is in the plane at valve rod 11 center lines and valve body 1 channel centerline place, be that the center line, valve rod 11 center lines, valve body 1 channel centerline of roller 6 are in same plane, on throw-out collar 9, be shaped with two arc grooves, the central position of arc groove is being passed through in valve rod 11 center lines and the plane perpendicular to spheroid 3 channel centerlines, and the radius of arc of arc groove is greater than the radius of roller 6.In the time that spheroid 3 and valve seat 4 are sealed and matched position, roller 6 enters in the arc groove of throw-out collar 9, spheroid 3 is contacted with valve seat 4 sealing surface sealings, spheroid 3 open or closing process in, roller 6 rolls out in the arc groove of throw-out collar 9, throw-out collar 9 promotes roller 6, shift(ing) ring 7, valve seat 4 and leaves spheroid 3, and spheroid 3 and valve seat 4 are opened and closed without friction.
Shift(ing) ring 7 is arranged between valve body 1 passage inner round wall and valve seat 4 cylindrical walls by retaining ring 5, retaining ring 5 is an annulus, retaining ring 5 inner ring surfaces are inlaid in the circular groove of valve seat 4 cylindrical walls, retaining ring 5 is near the plane of valve seat 4 sealing surface one sides and the plane contact of shift(ing) ring 7 one sides, shift(ing) ring 7 is fixed between valve seat 4 peripheries and valve body 1 vias inner walls, shift(ing) ring 7 also can adopt screw to be fixedly mounted on valve seat 4 peripheries, as shown in Figure 2.
Claims (2)
1. a upper dress formula selfsealings ball valve, comprise valve body (1), valve seat (4), spheroid (3), valve rod (11), valve gap (12), spheroid (3) adopts and is firmly sealed and matched with valve seat (4) sealing surface, and valve seat (4) adopts floating structure; It is characterized in that being provided with ejection means between spheroid (3) and valve seat (4), this ejection means is made up of throw-out collar (9), roller (6), positioning shaft (8), shift(ing) ring (7); Throw-out collar (9) is an annulus, is arranged on spheroid (3) table top perpendicular to valve rod (11) center line; Roller (6) is arranged in shift(ing) ring (7) by positioning shaft (8), roller (6) is a cylindrical body, this cylindrical center hole coordinates with positioning shaft (8) is moving, shift(ing) ring (7) is circle structure, be inlaid between valve body (1) passage inner round wall and valve seat (4) cylindrical wall, the periphery of shift(ing) ring (7) coordinates with valve body (1) passage inner round wall is moving, and shift(ing) ring (7) is fixedly connected with valve seat (4) cylindrical wall; The center line of roller (6) is in the plane at valve rod (11) center line and valve body (1) channel centerline place, on throw-out collar (9), be shaped with two arc grooves, the central position of arc groove is being passed through in valve rod (11) center line and the plane perpendicular to spheroid (3) channel centerline, and the radius of arc of arc groove is greater than the radius of roller (6).
2. upper dress formula selfsealings ball valve according to claim 1, it is characterized in that shift(ing) ring (7) is arranged between valve body (1) passage inner round wall and valve seat (4) cylindrical wall by retaining ring (5), retaining ring (5) is an annulus, retaining ring (5) inner ring surface is inlaid in the circular groove of valve seat (4) cylindrical wall, and retaining ring (5) is near the plane of valve seat (4) sealing surface one side and the plane contact of shift(ing) ring (7) one sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420251354.9U CN203836266U (en) | 2014-05-04 | 2014-05-04 | Upper-mounted self-sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420251354.9U CN203836266U (en) | 2014-05-04 | 2014-05-04 | Upper-mounted self-sealing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203836266U true CN203836266U (en) | 2014-09-17 |
Family
ID=51514108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420251354.9U Expired - Fee Related CN203836266U (en) | 2014-05-04 | 2014-05-04 | Upper-mounted self-sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203836266U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587886A (en) * | 2016-02-22 | 2016-05-18 | 曲德湖 | Novel ball valve opening and closing piece and spherical monoclinic weld joint type all-welded ball valve comprising same |
| CN105587885A (en) * | 2016-03-11 | 2016-05-18 | 航天长征化学工程股份有限公司 | Sealing ball valve |
| CN107830199A (en) * | 2017-10-20 | 2018-03-23 | 上海阀门厂股份有限公司 | A kind of valve spreading mechanism |
| CN114352763A (en) * | 2021-12-27 | 2022-04-15 | 浙江伯特利科技股份有限公司 | Top-mounted cryogenic ball valve and online assembly device and assembly process thereof |
-
2014
- 2014-05-04 CN CN201420251354.9U patent/CN203836266U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587886A (en) * | 2016-02-22 | 2016-05-18 | 曲德湖 | Novel ball valve opening and closing piece and spherical monoclinic weld joint type all-welded ball valve comprising same |
| CN105587886B (en) * | 2016-02-22 | 2018-02-06 | 曲德湖 | A kind of ball valve opening and closing element and the spherical monocline weld seam all-welded ball valve containing it |
| CN105587885A (en) * | 2016-03-11 | 2016-05-18 | 航天长征化学工程股份有限公司 | Sealing ball valve |
| CN105587885B (en) * | 2016-03-11 | 2024-05-28 | 航天长征化学工程股份有限公司 | Sealing ball valve |
| CN107830199A (en) * | 2017-10-20 | 2018-03-23 | 上海阀门厂股份有限公司 | A kind of valve spreading mechanism |
| CN114352763A (en) * | 2021-12-27 | 2022-04-15 | 浙江伯特利科技股份有限公司 | Top-mounted cryogenic ball valve and online assembly device and assembly process thereof |
| CN114352763B (en) * | 2021-12-27 | 2023-06-16 | 浙江伯特利科技股份有限公司 | Top-mounted cryogenic ball valve, on-line assembly device and assembly process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |