CN103672015A - Balanced metal valve seat sealing structure for high-temperature high-pressure regulating ball valve - Google Patents
Balanced metal valve seat sealing structure for high-temperature high-pressure regulating ball valve Download PDFInfo
- Publication number
- CN103672015A CN103672015A CN201310637677.1A CN201310637677A CN103672015A CN 103672015 A CN103672015 A CN 103672015A CN 201310637677 A CN201310637677 A CN 201310637677A CN 103672015 A CN103672015 A CN 103672015A
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- Prior art keywords
- valve
- valve seat
- ring
- metal
- seat
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- 239000002184 metal Substances 0.000 title claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 32
- 238000007789 sealing Methods 0.000 title claims abstract description 21
- 230000001105 regulatory effect Effects 0.000 title abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 23
- 239000010439 graphite Substances 0.000 claims description 23
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 2
- 238000001727 in vivo Methods 0.000 claims description 2
- 229910000990 Ni alloy Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 229910001090 inconels X-750 Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- 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
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention relates to a balanced metal valve seat sealing structure for a high-temperature high-pressure regulating ball valve. The balanced metal valve seat sealing structure comprises a valve body, a valve seat, an auxiliary valve seat, a first metal graphite ring, a thrust ring, an O-shaped metal ring, a supporting ring, a second metal graphite ring and a ball. The valve body and the valve seat are connected, and the auxiliary valve seat is mounted in the valve body. The first metal graphite ring, the thrust ring, the O-shaped metal ring, the supporting ring and the second metal graphite ring are sequentially mounted between the auxiliary valve seat and the valve seat. The O-shaped metal ring mounted between the thrust ring and the supporting ring has an elastic compensation effect; the auxiliary valve seat, namely the balanced valve seat, is attached to the ball. With the balanced metal valve seat sealing structure, the problems of failure in opening the valve and influence to regulating performance thereof due to excessive friction force and increased on-off torque of the ball are avoided, regulating performance of the high-temperature high-pressure regulating ball valve on site with high temperature difference can be improved while serve lives of valve sealing elements and the overall valve can be prolonged.
Description
Technical field
The present invention relates to a kind of High Temperature High Pressure and regulate ball valve balance type metal seat valve sealing configuration, specifically a kind of valve base sealing structure that is widely used in the occasions such as pure gas liquid medium, high temperature difference operating mode; Belong to instrument control technique field.
Background technique
The application of ball valve on the devices such as petrochemical industry, Coal Chemical Industry is very extensive, and particularly some high-temperature high-pressure metal seals regulate ball valve, can not be substituted especially, and the structure of its valve base sealing part has directly determined the usability of valve in specific operating mode.
In the prior art, valve is conventionally adopted to be spring-loaded to compensate and is aided with the sealing that the structures such as O type circle or graphite-seal ring realize valve seat and valve ball.O type circle is used extensively in valve seal technology, but due to the narrow limitation of its material, cannot under the operating modes such as superhigh temperature, ultralow temperature, High Pressure Difference, use, and the easy wear out failure of O type circle, and working life is short, needs often maintenance to change; And traditional graphite-seal ring is as easy as rolling off a log because of pressure extrusion deformation failure.In the selection of spring, conventionally adopt butterfly spring and complete cycle cylindrical spring to realize stretch compensation, but often ignore valve seat under the effect of medium power, valve ball can produce excessive frictional force, increase its switching torque, and cause valve to open, affect valve regulated performance.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, the High Temperature High Pressure that provides a kind of and can guarantee valve stable operation, extends valve working life and reduction valve repair rate regulates ball valve balance type metal seat valve sealing configuration.
According to technological scheme provided by the invention, High Temperature High Pressure regulates ball valve balance type metal seat valve sealing configuration to comprise valve body, valve seat, auxiliary valve seat, the first metallic graphite carbon ring, Thrust ring, metal O type circle, support ring, the second metallic graphite carbon ring and valve ball; Described valve body is connected with valve seat, and described auxiliary valve seat is installed in valve body; Described the first metallic graphite carbon ring, Thrust ring, metal O type circle, support ring, the second metallic graphite carbon ring are installed between auxiliary valve seat and valve seat successively; Metal O type circle is installed between described Thrust ring and support ring and can be played elastic compensating effect, described balance valve seat is close proximity to valve ball.
As a further improvement on the present invention, described valve seat is provided with equalizing orifice, can equilibrium valve in-vivo medium power.
As a further improvement on the present invention, described the first metallic graphite carbon ring, the second metallic graphite carbon ring
By multilayer stainless steel sheets and multi-layer thin graphite flake, be stacked alternately and process respectively.
As a further improvement on the present invention, described metal O type circle adopts Inconel X750 material, makes it have good elasticity capacity.
Compared with the prior art the present invention has the following advantages:
1, owing to having adopted equalizing orifice valve seat construction, effectively balance the various pressure in cavity.
2, the first metallic graphite carbon ring 4, the second metallic graphite carbon ring 8 are stacked alternately and are processed by multilayer stainless steel sheets and Multi-layer graphite sheet, have improved the usability under High Temperature High Pressure.
3, O type circle adopts Inconel alloy material, compares with conventional O type coil structures, can be applied to the operating modes such as superhigh temperature, low temperature, more can substitute the effect of spring, and necessary sealing compensation power is provided, and makes valve seat and valve ball efficient sealed.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is auxiliary valve seat sealing state schematic diagram of the present invention.
Fig. 3 is metal O type coil structures figure.
Embodiment
Below in conjunction with concrete accompanying drawing and implementation methods, the invention will be further described.
As shown in the figure: High Temperature High Pressure regulates ball valve balance type metal seat valve sealing configuration to comprise that the parts such as valve body 1, valve seat 2, auxiliary valve seat 3, the first metallic graphite carbon ring 4, Thrust ring 5, metal O type circle 6, support ring 7, the second metallic graphite carbon ring 8, equalizing orifice 9, valve ball 10 form.Described valve body 1 is connected with valve seat 2, and described auxiliary valve seat 3 is installed in valve body 1; Described the first metallic graphite carbon ring 4, Thrust ring 5, metal O type circle 6, support ring 7, the second metallic graphite carbon ring 8 are installed between auxiliary valve seat 3 and valve seat 2 successively; Metal O type circle 6 is installed between Thrust ring 5 and support ring 7 and can be played elastic compensating effect, described balance valve seat 3 is close proximity to valve ball 10.
Working principle of the present invention:
When medium passes through valve, medium is tried hard to recommend moving valve seat 2 and is relied on valve ball 10, because valve seat 2 is provided with equalizing orifice 9, makes partial pressure be full of part between auxiliary valve seat 3 and valve seat 2 by equalizing orifice 9; Support ring 7 is stressed compresses metal O type circle 6, Thrust ring 5 and the first metallic graphite carbon ring 4 to left dislocation, can make the back plane of auxiliary valve seat 3 be close to the convex surface of valve body 1, forms the sealing of valve seat aux. pressure, as shown in Figure 2; Same, the stressed also displacement to the right of support ring 7, compresses the second metallic graphite carbon ring 8, promotes valve seat 2 thereupon and produces sealing force with valve ball 10.When medium enters valve body, the thrust that the pressure medium that can disperse valve pocket by the equalizing orifice 9 on valve seat 2 produces valve seat, avoids valve ball to produce excessive frictional force, increases its switching torque, and causes valve to open, and affects valve regulated performance.
The thrust that the present invention utilizes equalizing orifice 9 that valve seat 2 is provided with to disperse the pressure medium of valve pocket to produce valve seat, avoids valve ball to produce excessive frictional force, increases its switching torque, and causes valve to open, and affects valve regulated performance.The present invention has improved the life-span that High Temperature High Pressure regulates ball valve to use at high temperature difference occasion adjusting function, valve seal element and whole valve.
Claims (4)
1. High Temperature High Pressure regulates ball valve balance type metal seat valve sealing configuration, comprise valve body (1), valve seat (2), described valve body (1) is connected with valve seat (2), it is characterized in that: also comprise auxiliary valve seat (3), the first metallic graphite carbon ring (4), Thrust ring (5), metal O type circle (6), support ring (7), the second metallic graphite carbon ring (8) and valve ball (10); Described auxiliary valve seat (3) is installed in valve body (1); Described the first metallic graphite carbon ring (4), Thrust ring (5), metal O type circle (6), support ring (7) and the second metallic graphite carbon ring (8) are installed between auxiliary valve seat (3) and valve seat (2) successively; Between described Thrust ring (5) and support ring (7), metal O type circle (6) is installed, described balance valve seat (3) is close proximity to valve ball (10).
2. High Temperature High Pressure as claimed in claim 1 regulates ball valve balance type metal seat valve sealing configuration, it is characterized in that: described valve seat (2) is provided with equilibrium valve in-vivo medium equilibrium of forces hole (9).
3. High Temperature High Pressure as claimed in claim 1 regulates ball valve balance type metal seat valve sealing configuration, it is characterized in that: described the first metallic graphite carbon ring (4), the second metallic graphite carbon ring (8) are stacked alternately and are processed by multilayer stainless steel sheets and multi-layer thin graphite flake respectively.
4. High Temperature High Pressure as claimed in claim 1 regulates ball valve balance type metal seat valve sealing configuration, it is characterized in that: described metal O type circle (6) adopts English section nickel alloy material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310637677.1A CN103672015A (en) | 2013-11-30 | 2013-11-30 | Balanced metal valve seat sealing structure for high-temperature high-pressure regulating ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310637677.1A CN103672015A (en) | 2013-11-30 | 2013-11-30 | Balanced metal valve seat sealing structure for high-temperature high-pressure regulating ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103672015A true CN103672015A (en) | 2014-03-26 |
Family
ID=50310422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310637677.1A Pending CN103672015A (en) | 2013-11-30 | 2013-11-30 | Balanced metal valve seat sealing structure for high-temperature high-pressure regulating ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103672015A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141805A (en) * | 2014-08-11 | 2014-11-12 | 苏州纽威阀门股份有限公司 | Valve seat with ball valve and ball valve provided with valve seat |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2384286A (en) * | 2001-11-14 | 2003-07-23 | Pacson Ltd | Sealing system for valve stem |
| JP2004360844A (en) * | 2003-06-06 | 2004-12-24 | Hidesaburo Ishii | Opening and closing valve device of connection pipe joint |
| CN202659942U (en) * | 2012-06-26 | 2013-01-09 | 慎江阀门有限公司 | Double sealing valve seat with auxiliary sealing |
| CN102927311A (en) * | 2012-11-10 | 2013-02-13 | 无锡智能自控工程股份有限公司 | One-way sealing top-installing adjusting ball valve |
| CN202955275U (en) * | 2012-12-25 | 2013-05-29 | 沃泰工业阀门（中国）有限公司 | Elastic energy storage sealing valve seat |
| CN203146883U (en) * | 2013-01-15 | 2013-08-21 | 辽宁万邦输油气管道设备制造有限公司 | Valve seat structure |
| CN204042065U (en) * | 2013-11-30 | 2014-12-24 | 无锡智能自控工程股份有限公司 | High Temperature High Pressure regulates ball valve balance type metal seat valve sealing configuration |
-
2013
- 2013-11-30 CN CN201310637677.1A patent/CN103672015A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2384286A (en) * | 2001-11-14 | 2003-07-23 | Pacson Ltd | Sealing system for valve stem |
| JP2004360844A (en) * | 2003-06-06 | 2004-12-24 | Hidesaburo Ishii | Opening and closing valve device of connection pipe joint |
| CN202659942U (en) * | 2012-06-26 | 2013-01-09 | 慎江阀门有限公司 | Double sealing valve seat with auxiliary sealing |
| CN102927311A (en) * | 2012-11-10 | 2013-02-13 | 无锡智能自控工程股份有限公司 | One-way sealing top-installing adjusting ball valve |
| CN202955275U (en) * | 2012-12-25 | 2013-05-29 | 沃泰工业阀门（中国）有限公司 | Elastic energy storage sealing valve seat |
| CN203146883U (en) * | 2013-01-15 | 2013-08-21 | 辽宁万邦输油气管道设备制造有限公司 | Valve seat structure |
| CN204042065U (en) * | 2013-11-30 | 2014-12-24 | 无锡智能自控工程股份有限公司 | High Temperature High Pressure regulates ball valve balance type metal seat valve sealing configuration |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141805A (en) * | 2014-08-11 | 2014-11-12 | 苏州纽威阀门股份有限公司 | Valve seat with ball valve and ball valve provided with valve seat |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140326 |
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| RJ01 | Rejection of invention patent application after publication |