CN103591329A - C-type valve seat sealing structure of tapered-wedge type top-mounted ball valve - Google Patents
C-type valve seat sealing structure of tapered-wedge type top-mounted ball valve Download PDFInfo
- Publication number
- CN103591329A CN103591329A CN201310590363.0A CN201310590363A CN103591329A CN 103591329 A CN103591329 A CN 103591329A CN 201310590363 A CN201310590363 A CN 201310590363A CN 103591329 A CN103591329 A CN 103591329A
- Authority
- CN
- China
- Prior art keywords
- valve
- type
- valve seat
- ball
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 74
- 229910001026 inconel Inorganic materials 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0626—Easy mounting or dismounting means
- F16K5/0636—Easy mounting or dismounting means the spherical plug being insertable from the top of the housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention relates to a C-type valve seat sealing structure of a tapered-wedge type top-mounted ball valve. The C-type valve seat sealing structure comprises a valve body, a valve ball, valve seats and C-type elastic sealing rings. The valve seats are arranged in the symmetric positions on the two sides of the valve ball. The sealing surface of each valve seat is matched with the spherical surface of the valve ball to form a sealing pair. The C-type elastic sealing rings are arranged in grooves formed in the reverse sides of the valve seats. The valve ball, the valve seats and the C-type elastic sealing rings form an integrated assembly which is arranged in a cavity of the valve body from the top of the valve body. The reverse sides of the valve seats are tightly attached to the tapered-wedge type sealing surface of the valve body and press the C-type elastic sealing rings tightly. The C-type valve seat sealing structure can work under the compression condition for a long time and can prevent the C-type elastic sealing rings in energy increasing springs from moving and being extruded to cause seal failure. Moreover, the C-type valve seat sealing structure can ensure the stability of pretightening force which is exerted on the valve seats through the C-type elastic sealing rings, ensures sealing performance and reduces the torque of a valve to the maximum extent.
Description
Technical field
The present invention relates to a kind of inclined wedge type top dress ball valve C type valve base sealing structure, can realize that top dress ball seat is efficient, stabilized seal, belong to automatic control technology field.
Background technique
In the operating modes such as inclined wedge type top dress ball valve is rare at high pressure crude oil, high temperature Residual oil, liquefied petroleum gas (LPG), hydrocarbon, polymer, second, synthetic gas, application is very extensive, because its roof-mounted structural feature makes just can change trim, keep in repair without rolling off the production line, unique inclined wedge type valve body sealing surface can play the effect of auto-compensation after the prooving of valve seat, contributes to extend the working life of valve.But the also bottleneck of whole deck valve door performance and used life often of valve base sealing structure in inclined wedge type top dress ball valve, elastic sealing elements wherein plays a part very crucial, it not only needs for valve seat provides suitable pretightening force, also will between valve seat and valve body sealing surface, serve as the key player of Sealing simultaneously.
In current prior art, the valve base sealing structure of inclined wedge type top dress ball valve adopts U-shaped seal ring as elastic sealing elements conventionally.And being limit by its structural characteristics, U-shaped seal ring cannot protect the spring being embedded in wherein, along with valve event increased frequency, the sealing surface of valve seat and valve ball constantly weares and teares, now valve ball and valve seat, U-shaped seal ring is made the as a whole trend with the increasing inclined wedge type sealing surface down sliding along valve body, the impacting force that U-shaped seal ring is subject to valve seat and valve body increases gradually, the spring being embedded in U-shaped groove also moves at the opening direction toward U-shaped groove in distortion owing to being squeezed, the pretightening force that finally causes U-shaped seal ring to provide valve seat and valve body sealing surface is very limited, medium increases from the leakage rate of valve seat location, device is forced to out of service to valve is repaired or replaced, cause unnecessary economic loss and time waste.
Summary of the invention
The object of the invention is to overcome the deficiency in above-mentioned technology, thereby provide a kind of inclined wedge type top dress ball valve C type valve base sealing structure, sealing structure can improve the sealing reliability of inclined wedge type top dress ball valve and increase the service life, assurance device safety, stable, efficiently operation.
According to technological scheme provided by the invention, inclined wedge type top dress ball valve C type valve base sealing structure comprises
Valve body, valve ball, valve seat, C type elastic sealing ring; Described valve seat is arranged on the symmetrical position of valve ball both sides, sealing surface of seat coordinates formation sealing pair with the sphere of valve ball, described C type elastic sealing ring is arranged in the groove at the valve seat back side, described valve ball, valve seat, C type elastic sealing ring form a whole assembly and from valve body top, are arranged in the cavity of valve body, and the inclined wedge type sealing surface of the back side of described valve seat and valve body fits tightly and C type elastic sealing ring is compressed.
As a further improvement on the present invention, described C type elastic sealing ring is comprised of C type ring and energization spring, and described C type ring is closely coated on energization spring outside.
As a further improvement on the present invention, the opening of described C type ring is closed state.
As a further improvement on the present invention, described energization spring adopts Inconel high elastic modulus material to make, and described C type ring also adopts Inconel high elastic modulus material precise punch forming.
As a further improvement on the present invention, the back side of described valve seat is provided with groove.
Compared with the prior art the present invention has the following advantages:
1, opening adopts the C type ring of closed form design to be closely coated on energization spring outside, even long-term work can not make energization spring move and even deviate to cause seal failure yet under pressured state, guarantee the stability of C type elastic sealing ring to pretightening force that valve seat provides in C type ring.
2, adopt energization spring and the C type ring that Inconel material is made to there is good springiness, long feature of life-span.
3, the size of valve seat back side groove, according to the decrement accurate Calculation of C type elastic sealing ring, reduces to greatest extent valve torque when guaranteeing sealability.
Accompanying drawing explanation
Fig. 1 is use phase diagram of the present invention.
Fig. 2 is valve base sealing structure schematic diagram.
Fig. 3 is the structural representation of C type elastic sealing ring.
Fig. 4 is the A place partial schematic diagram of Fig. 3.
Fig. 5 is the structural representation of U-shaped elastic sealing ring.
Fig. 6 is the B place partial schematic diagram of Fig. 5.
Embodiment
Below in conjunction with concrete accompanying drawing, the invention will be further described.
As shown in Figure 1 to 4: inclined wedge type top dress ball valve C type valve base sealing structure comprises valve body 1, valve ball 4, valve seat 2, C type elastic sealing ring 3 etc.
According to technological scheme provided by the invention, described C type elastic sealing ring 3 is comprised of C type ring 3a and the energization spring 3b being coated in C type ring 3a.Described valve seat 2 is arranged on the symmetrical position of valve ball 4 both sides, valve seat 2 sealing surfaces coordinate formation sealing pair with the sphere of valve ball 4, the back side at described valve seat 2 is provided with groove, described C type elastic sealing ring 3 is arranged in the groove at valve seat 2 back sides, described valve ball 4, valve seat 2, C type elastic sealing ring 3 are arranged on from top in the cavity of valve body 1 as a whole assembly, and the inclined wedge type sealing surface of the back side of described valve seat 2 and valve body 1 fits tightly and C type elastic sealing ring 3 is compressed.
Described C type elastic sealing ring is comprised of C type ring and energization spring, and described C type ring is closely coated on energization spring outside.The opening of described C type ring is closed state.Described energization spring adopts Inconel high elastic modulus material to make, and described C type ring also adopts Inconel high elastic modulus material precise punch forming.
Working principle of the present invention: when valve is in running order, energization spring 3b is squeezed distortion and produces elastic potential energy, and by being coated on its outside C type ring 3a, elastic force is passed to valve seat 2, valve seat 2 is pressed on and on the sphere of valve ball 4, forms sealing, while, because the elastic force effect that C type ring 3a is subject to energization spring 3b produces the trend of outside expansion, makes the both sides of C type ring 3a form sealing with the inclined wedge type sealing surface of valve seat 2 back sides, valve body 1 respectively.Compare with traditional U-shaped elastic sealing ring, because the opening of C type ring 3a is closed state trend and is closely coated on energization spring 3b outside, therefore even if the long-term frequent movement of valve, sealing pair wearing and tearing cause valve ball 4 to move down also can't making that energization spring 3b is mobile in C type ring 3a even to be deviate from, guarantee that C type elastic sealing ring 3 is in optimum Working all the time, has more guaranteed the reliability of whole valve base sealing structure.
Claims (5)
1. inclined wedge type top dress ball valve C type valve base sealing structure, comprises valve body (1), valve ball (4), valve seat (2), it is characterized in that: also comprise C type elastic sealing ring (3); Described valve seat (2) is arranged on the symmetrical position of valve ball (4) both sides, valve seat (2) sealing surface coordinates formation sealing pair with the sphere of valve ball (4), described C type elastic sealing ring (3) is arranged in the groove at valve seat (2) back side, described valve ball (4), valve seat (2), C type elastic sealing ring (3) form a whole assembly and from valve body top, are arranged in the cavity of valve body (1), the inclined wedge type sealing surface of the back side of described valve seat (2) and valve body (1) fits tightly, and C type elastic sealing ring (3) is compressed.
2. inclined wedge type as claimed in claim 1 top fills ball valve C type valve base sealing structure, it is characterized in that: described C type elastic sealing ring (3) is comprised of C type ring (3a) and energization spring (3b), described C type ring (3a) is closely coated on energization spring (3b) outside.
3. inclined wedge type as claimed in claim 1 top dress ball valve C type valve base sealing structure, is characterized in that: the opening of described C type ring (3a) is closed state.
4. inclined wedge type as claimed in claim 1 top dress ball valve C type valve base sealing structure, is characterized in that: described energization spring (3b) adopts Inconel material to make, and described C type ring (3a) adopts the impact briquetting of Inconel material.
5. inclined wedge type as claimed in claim 1 top dress ball valve C type valve base sealing structure, is characterized in that: the back side of described valve seat (2) is provided with groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310590363.0A CN103591329A (en) | 2013-11-20 | 2013-11-20 | C-type valve seat sealing structure of tapered-wedge type top-mounted ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310590363.0A CN103591329A (en) | 2013-11-20 | 2013-11-20 | C-type valve seat sealing structure of tapered-wedge type top-mounted ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103591329A true CN103591329A (en) | 2014-02-19 |
Family
ID=50081574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310590363.0A Pending CN103591329A (en) | 2013-11-20 | 2013-11-20 | C-type valve seat sealing structure of tapered-wedge type top-mounted ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103591329A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180010A (en) * | 2014-08-28 | 2014-12-03 | 上海阀门厂有限公司 | Top-mounted ball valve |
| CN115076407A (en) * | 2022-07-20 | 2022-09-20 | 湖南西爱斯流体控制设备有限公司 | Top Entry Ball Valves and Fluid Systems |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4071220A (en) * | 1975-09-25 | 1978-01-31 | Kitazawa Shoji Kabushiki Kaisha | Ball valve |
| US4239242A (en) * | 1978-12-18 | 1980-12-16 | Burns William G | Pipe union and seal |
| JPH07180776A (en) * | 1993-12-24 | 1995-07-18 | Kubota Corp | Metal sheet structure for ball valve |
| CN2286814Y (en) * | 1995-10-11 | 1998-07-29 | 王树先 | Double-ring piston type guiding electromagnetic valve |
| EP1197686A1 (en) * | 1999-06-29 | 2002-04-17 | Ampo, S. Coop. | Superelastic seal for liquid natural gas processing plants |
| CN101865305A (en) * | 2010-06-13 | 2010-10-20 | 无锡智能自控工程有限公司 | U-shaped elastic sealing structure |
| CN203627873U (en) * | 2013-11-20 | 2014-06-04 | 无锡智能自控工程股份有限公司 | C-shaped valve seat sealing structure of wedge type top entry ball valve |
-
2013
- 2013-11-20 CN CN201310590363.0A patent/CN103591329A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4071220A (en) * | 1975-09-25 | 1978-01-31 | Kitazawa Shoji Kabushiki Kaisha | Ball valve |
| US4239242A (en) * | 1978-12-18 | 1980-12-16 | Burns William G | Pipe union and seal |
| JPH07180776A (en) * | 1993-12-24 | 1995-07-18 | Kubota Corp | Metal sheet structure for ball valve |
| CN2286814Y (en) * | 1995-10-11 | 1998-07-29 | 王树先 | Double-ring piston type guiding electromagnetic valve |
| EP1197686A1 (en) * | 1999-06-29 | 2002-04-17 | Ampo, S. Coop. | Superelastic seal for liquid natural gas processing plants |
| CN101865305A (en) * | 2010-06-13 | 2010-10-20 | 无锡智能自控工程有限公司 | U-shaped elastic sealing structure |
| CN203627873U (en) * | 2013-11-20 | 2014-06-04 | 无锡智能自控工程股份有限公司 | C-shaped valve seat sealing structure of wedge type top entry ball valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180010A (en) * | 2014-08-28 | 2014-12-03 | 上海阀门厂有限公司 | Top-mounted ball valve |
| CN115076407A (en) * | 2022-07-20 | 2022-09-20 | 湖南西爱斯流体控制设备有限公司 | Top Entry Ball Valves and Fluid Systems |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104653791A (en) | Splitting type valve seat self-adjustable sealing three-eccentric butterfly valve | |
| CN101413590A (en) | Supporting type double-seal double-gate plate flat plate gate valve | |
| CN103591329A (en) | C-type valve seat sealing structure of tapered-wedge type top-mounted ball valve | |
| CN203627873U (en) | C-shaped valve seat sealing structure of wedge type top entry ball valve | |
| CN202048221U (en) | Bidirectional pressure bearing metal sealing butterfly valve having movable valve seat | |
| CN204061903U (en) | The rod seal of ultrahigh pressure new type compound | |
| CN103711935A (en) | Valve seat structure of track ball valve | |
| CN202100754U (en) | Metal sealing ball valve | |
| CN201330855Y (en) | Anti-friction valve | |
| CN203374872U (en) | Valve base sealing structure of ball valve | |
| CN111022722A (en) | Gas-driven membrane overturning type normally-closed valve | |
| CN202091540U (en) | A self-compensating super-hard wear-resistant high-temperature and high-pressure metal hard-sealed ball valve | |
| CN201875176U (en) | Novel spherical ball valve | |
| CN205401805U (en) | Double track way groove ball valve sealed firmly | |
| CN105240550A (en) | Sealing device of pneumatic blow gun | |
| CN201062566Y (en) | Hydraulic turbine main-shaft sealing arrangement | |
| CN204062141U (en) | A kind of H type valve seat shape metallic leak-proof structure | |
| CN103615595A (en) | Lock hopper valve seat spring dust-preventing sealing structure | |
| CN203757161U (en) | Packing box and valve connecting and sealing structure | |
| CN202580063U (en) | Stop valve | |
| CN203404064U (en) | Valve body and valve seat for fracturing pump | |
| CN202867913U (en) | Valve seat structure of track ball valve | |
| CN203214872U (en) | Novel movable sealing device | |
| CN201715020U (en) | Abrasion auto-compensation sealed ball valve | |
| CN202484346U (en) | Ball valve seat structure with spring sealing mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140219 |