CN104791501A - Bi-directional pressure self-balancing type stop valve - Google Patents
Bi-directional pressure self-balancing type stop valve Download PDFInfo
- Publication number
- CN104791501A CN104791501A CN201510210812.3A CN201510210812A CN104791501A CN 104791501 A CN104791501 A CN 104791501A CN 201510210812 A CN201510210812 A CN 201510210812A CN 104791501 A CN104791501 A CN 104791501A
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- valve
- piston
- piston cylinder
- valve body
- medium
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
Abstract
Provided is a bi-directional pressure self-balancing type stop valve. According to the pressure self-balancing theory, a medium which acts on a valve clack (2) is self-balanced in pressure, by using a valve in the bi-directional mode, the medium can be self-balanced in pressure, and therefore the influence on the valve operating performance and the sealing quality by the medium pressure can be thoroughly eliminated. The bi-directional pressure self-balancing type stop valve has the advantages of being compact in structure, small in starting and stopping torque, reliable in sealing, and capable of being used in the bi-directional mode. In addition, the using requirements of the stop valve which is high in pressure and large in diameter of a flowing medium pipeline can be met.
Description
[technical field]
The present invention relates to a kind of stop valve, be specifically related to a kind of bidirection press Self-balance valve.
[background technique]
Known, stop valve refers to the valve of flap along the movement of valve seat center line, because in its opening-closing process, between sealing surface, frictional force is little, the life-span is long, Lift is little, low cost of manufacture, the advantage such as easy to maintenance, be widely used in the fields such as petrochemical industry, boats and ships, power station, metallurgy.Because the structure of existing stop valve mainly comprises valve body, flap, valve rod, valve gap etc., the stop valve of this structure, when throttle down, because flap bears the impact of valve body inlet pressure, causes valve closing difficulty.Its degree of difficulty is aggravated with the rising of pipeline medium pressure and the increase of valve latus rectum.Have a strong impact on sealability and the operability of valve, also constrain the application of stop valve on high pressure, big orifice pipeline.
Inventor finds through retrieval, and in order to solve this technical problem, occur two kinds of pressure balancing type break valves, one is inner bypass stop valve; Another kind is plunger type Self-balance valve.Valve is required to import and export when the former inner bypass stop valve is installed and used contrary with traditional form; The latter's plunger stop valve is uniaxial pressure self-balance structure, is not suitable for bidirectional bearing environment.
[summary of the invention]
In order to overcome the deficiency existed in background technique, the invention provides a kind of bidirection press Self-balance valve, the present invention can pass through pressure self-balancing principle, make the pressure medium self balancing acted on flap, the two-way use of valve all can reach pressure medium self balancing, thus fundamentally eliminating the impact of pressure medium on valve operation performance and airtight quality, the present invention has compact structure, opens and closes the features such as moment is little, sealing is reliable, can two-wayly use.
For realizing goal of the invention as above, the present invention adopts technological scheme as described below:
A kind of bidirection press Self-balance valve, comprise valve body, flap, valve rod, piston, piston cylinder and valve gap, piston cylinder is provided with in described valve body neck hatchway, the outer edge surface of piston cylinder is provided with a plurality of through medium through hole in the middle part of piston cylinder, the inwall of valve body neck hatchway is provided with type guide channel, the corresponding medium through hole in one end of described guide channel, the other end of guide channel connects valve A mouth, piston is provided with in piston cylinder, the middle part of described piston is provided with valve rod, the outer edge surface of described valve rod is provided with annular boss, piston is provided with successively on annular boss, piston cylinder and end cap, flap is connected below annular boss, the upper end of described flap is provided with divided ring, end cap is movably equipped with in the lower end of described divided ring, the lower end of described end cap and piston is connected to form described bidirection press Self-balance valve.
Described bidirection press Self-balance valve, described valve body is straight-through type valve body or angie type valve body.
Described bidirection press Self-balance valve, the inwall of described valve body neck hatchway is provided with circular groove, and the bottom land of described circular groove is communicated with guide channel, and circular groove correspondence is arranged on the medium through hole on piston cylinder.
Described bidirection press Self-balance valve, described piston cylinder is fixed in valve body neck hatchway by valve gap, and described valve gap is connected by fastening piece and valve body.
Described bidirection press Self-balance valve, is interval with two seal rings between the outer edge surface of described piston cylinder and valve body neck hatchway, the outer edge surface of the piston cylinder between two seal rings is provided with medium through hole.
Described bidirection press Self-balance valve, is provided with seal ring between described valve rod and piston.
Described bidirection press Self-balance valve, is provided with seal ring between described piston cylinder and piston.
Described bidirection press Self-balance valve, described valve rod and and piston cylinder between be provided with seal ring.
Adopt technological scheme as above, the present invention has following beneficial effect:
A kind of bidirection press Self-balance valve of the present invention, the present invention can pass through pressure self-balancing principle, make the pressure medium self balancing acted on flap, the two-way use of valve all can reach pressure medium self balancing, thus fundamentally eliminating the impact of pressure medium on valve operation performance and airtight quality, the present invention has compact structure, opens and closes the features such as moment is little, sealing is reliable, can two-wayly use, and meets the usage requirement of high pressure, big orifice flowing medium pipeline stop valve.
[accompanying drawing explanation]
Fig. 1 is structural representation of the present invention;
In the drawings: 1, valve body; 2, flap; 3, valve rod; 4, divided ring; 5, end cap; 6, piston; 7, piston cylinder; 8, valve gap; 9, fastening piece; 10, seal ring; 11, guide channel; 12, counter balance pocket; 13, valve B mouth; 14, valve A mouth.
[embodiment]
Can explain the present invention in more detail by the following examples, the present invention is not limited to the following examples;
1 a kind of bidirection press Self-balance valve of the present invention by reference to the accompanying drawings, comprise valve body 1, flap 2, valve rod 3, piston 6, piston cylinder 7 and valve gap 8, described valve body 1 is straight-through type valve body or angie type valve body, piston cylinder 7 is provided with in described valve body 1 neck hatchway, described piston cylinder 7 is fixed in valve body 1 neck hatchway by valve gap 8, and described valve gap 8 is connected by fastening piece 9 and valve body 1; The outer edge surface of piston cylinder 7 is provided with a plurality of through medium through hole in the middle part of piston cylinder 7, the inwall of valve body 1 neck hatchway is provided with type guide channel 11, further, in order to better implement the present invention, make medium can enter counter balance pocket 12 smoothly, the inwall of valve body 1 neck hatchway is provided with circular groove, and the bottom land of described circular groove is communicated with guide channel 11, and circular groove correspondence is arranged on the medium through hole on piston cylinder 7; The corresponding medium through hole in one end of described guide channel 11, the other end of guide channel 11 connects valve A mouth 14, piston 6 is provided with in piston cylinder 7, the middle part of described piston 6 is provided with valve rod 3, the outer edge surface of described valve rod 3 is provided with annular boss, piston 6, piston cylinder 7 and end cap 5 is provided with successively on annular boss, flap 2 is connected below annular boss, the upper end of described flap 2 is provided with divided ring 4, be movably equipped with end cap 5 in the lower end of described divided ring 4, described end cap 5 is connected to form described bidirection press Self-balance valve with the lower end of piston 6.
Be interval with two seal rings 10 between the outer edge surface of wherein said piston cylinder 7 and valve body 1 neck hatchway, the outer edge surface of the piston cylinder 7 between two seal rings 10 is provided with medium through hole; Seal ring 10 is provided with between valve rod 3 and piston 6; Seal ring 10 is provided with between piston cylinder 7 and piston 6; Valve rod 3 and and piston cylinder 7 between be provided with seal ring 10.
The technical solution used in the present invention is as follows:
1, valve design: valve body 1 adopts straight-through type or angie type structure, and guide channel 11 is machining on valve body 1, port soldering and sealing after completing machining of guide channel 11; In addition, valve body 1 is also processed with the circular groove be communicated with guide channel 11, imports smoothly in counter balance pocket 12 to facilitate medium.
2, open-shut device design: open-shut device mainly comprises flap 2, valve rod 3, divided ring 4, end cap 5, piston 6, and wherein flap 2 adopts streamlined structure to design, is conducive to reducing valve flow resistance coefficient; End cap 5 and piston 6 by being threaded, and are designed with anti-loose structure; End cap 5 is connected by divided ring 4 with flap 2.
3, counter balance pocket design: counter balance pocket 12 is the cavity that piston 6 and piston cylinder 7 surround, and its sectional dimension is suitable with valve seat 1 sealing surface central diameter size; Piston cylinder 7 lateral layout has uniform medium through hole, ducted medium is introduced in counter balance pocket 12 smoothly; In addition, piston cylinder 7 is designed with leak detection groove with the junction plane place of valve gap 5, is convenient to leak check.Sealing between piston cylinder 7 and piston 6, valve body 1, valve rod 3 seals by seal ring 10.
4, opening/shutting mode design: bidirection press Self-balance valve of the present invention can adopt rotation and lifting to open and close or vertical lift opens and closes.
In the present invention, the working principle of pressure self-balancing is as follows:
When pressure medium is from valve A mouth 14, pressure medium is introduced in counter balance pocket 12 by the guide channel 11 on valve body 1, piston 6 is subject to downward medium power, the axial force that the medium power upwards that flap 2 is subject to being subject to bottom the downward impacting force of piston 6 and flap 2 forms a pair equal and opposite in direction, cancels out each other, achieves the pressure self-balancing of medium to flap 2; Equally, when pressure medium is from valve B mouth 13, the axial force that the power upwards that medium compresses the downward power of flap 2 and medium clamping piston 6 forms a pair equal and opposite in direction, cancels out each other, the present invention achieves the pressure self-balancing of medium to flap 2, so can realize the bidirection press self balancing of valve.
In the present invention, flap 2 is connected with piston 6 with end cap 5 by divided ring 4; End cap 5 and piston 6 for being threaded, and are designed with loosening configuration; Valve rod 3 is fixed between flap 2 and piston 6, and be Spielpassung between valve rod 3 and flap 2, piston 5, valve rod 3 head and flap 2 are sphere-contact, seal between valve rod 3 and piston 6 for seal ring 10; Piston 6 to-and-fro motion in piston cylinder 7 during valve opening and closing, the middle seal ring 10 that leans on seals; Piston cylinder 7 is fixed between valve body 1 and valve gap 8, seals between piston cylinder 7 and valve body 1 for seal ring 10; Valve body 1 and valve gap 8 are flange connection type, are close to firmware 9 and fix.During valve closing, be with ovable valve stem 3 to move down by handwheel or actuator, valve rod 3 passes to flap 2, divided ring 4, end cap 5 and piston 6 power successively, and open-shut device moves down, and completes the closing motion of valve; During valve opening, be with ovable valve stem 3 to move up by handwheel or actuator, valve rod 3 passes to piston 6, end cap 5, divided ring 4 and flap 2 power successively, and open-shut device moves up, thus realizes valve opening action.
Part not in the detailed description of the invention is prior art.
The embodiment selected in this article in order to open object of the present invention, currently thinks to be suitable for, but it is to be understood that the present invention is intended to comprise all changes belonging to the embodiment in this design and invention scope and improvement.
Claims (8)
1. a bidirection press Self-balance valve, comprise valve body (1), flap (2), valve rod (3), piston (6), piston cylinder (7) and valve gap (8), it is characterized in that: in described valve body (1) neck hatchway, be provided with piston cylinder (7), the outer edge surface of piston cylinder (7) is provided with a plurality of through medium through hole to piston cylinder (7) middle part, the inwall of valve body (1) neck hatchway is provided with type guide channel (11), the corresponding medium through hole in one end of described guide channel (11), the other end of guide channel (11) connects valve A mouth (14), piston (6) is provided with in piston cylinder (7), the middle part of described piston (6) is provided with valve rod (3), the outer edge surface of described valve rod (3) is provided with annular boss, piston (6) is provided with successively on annular boss, piston cylinder (7) and end cap (5), flap (2) is connected below annular boss, the upper end of described flap (2) is provided with divided ring (4), end cap (5) is movably equipped with in the lower end of described divided ring (4), described end cap (5) is connected to form described bidirection press Self-balance valve with the lower end of piston (6).
2. bidirection press Self-balance valve according to claim 1, is characterized in that: described valve body (1) is straight-through type valve body or angie type valve body.
3. bidirection press Self-balance valve according to claim 1, it is characterized in that: the inwall of described valve body (1) neck hatchway is provided with circular groove, the bottom land of described circular groove is communicated with guide channel (11), and circular groove correspondence is arranged on the medium through hole on piston cylinder (7).
4. bidirection press Self-balance valve according to claim 1, is characterized in that: described piston cylinder (7) is fixed in valve body (1) neck hatchway by valve gap (8), and described valve gap (8) is connected by fastening piece (9) and valve body (1).
5. bidirection press Self-balance valve according to claim 1, it is characterized in that: between the outer edge surface of described piston cylinder (7) and valve body (1) neck hatchway, be interval with two seal rings (10), the outer edge surface of the piston cylinder (7) between two seal rings (10) is provided with medium through hole.
6. bidirection press Self-balance valve according to claim 1, is characterized in that: be provided with seal ring (10) between described valve rod (3) and piston (6).
7. bidirection press Self-balance valve according to claim 1, is characterized in that: be provided with seal ring (10) between described piston cylinder (7) and piston (6).
8. bidirection press Self-balance valve according to claim 1, is characterized in that: described valve rod (3) and and piston cylinder (7) between be provided with seal ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510210812.3A CN104791501A (en) | 2015-04-29 | 2015-04-29 | Bi-directional pressure self-balancing type stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510210812.3A CN104791501A (en) | 2015-04-29 | 2015-04-29 | Bi-directional pressure self-balancing type stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104791501A true CN104791501A (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510210812.3A Pending CN104791501A (en) | 2015-04-29 | 2015-04-29 | Bi-directional pressure self-balancing type stop valve |
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| Country | Link |
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| CN (1) | CN104791501A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051171A (en) * | 2016-06-08 | 2016-10-26 | 中国船舶重工集团公司第七二五研究所 | Pressure self-balanced type stop check valve |
| CN107131353A (en) * | 2017-04-25 | 2017-09-05 | 中国船舶重工集团公司第七二五研究所 | A kind of two-way low operational torque high-pressure stop valve |
| CN108626404A (en) * | 2017-03-16 | 2018-10-09 | 费希尔控制产品国际有限公司 | Valve with whole machine balancing access |
| CN108708979A (en) * | 2018-08-01 | 2018-10-26 | 周君 | Bidirection press self-balance stop valve |
| CN108895166A (en) * | 2018-08-27 | 2018-11-27 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of valve |
| CN113339579A (en) * | 2021-07-01 | 2021-09-03 | 蓝晶晶 | Built-in pilot type stop valve |
| CN113700921A (en) * | 2021-08-31 | 2021-11-26 | 华中科技大学 | Electric direct-drive balanced type stop valve |
| EP3929476A4 (en) * | 2019-02-21 | 2022-11-16 | Fujikoki Corporation | Flow rate control valve |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB248843A (en) * | 1924-12-12 | 1926-03-12 | John Dewrance | Improvements in or applicable to steam stop-valves |
| US3888280A (en) * | 1973-08-20 | 1975-06-10 | Rockwell International Corp | Bi-directional pressure balanced valve |
| CN2584969Y (en) * | 2002-11-22 | 2003-11-05 | 宁波法兰特阀门有限公司 | Balance stop valve |
| CN200989447Y (en) * | 2006-04-12 | 2007-12-12 | 上海亚核阀业成套有限公司 | Self-operated balancing stop valve |
| CN201322127Y (en) * | 2008-11-17 | 2009-10-07 | 宁波骏嘉重型机械制造有限公司 | Manual high-pressure sluice valve |
| CN102434676A (en) * | 2011-09-27 | 2012-05-02 | 福建菲达阀门有限公司 | Self-balancing stop valve |
| CN202674331U (en) * | 2012-07-23 | 2013-01-16 | 开维喜阀门集团有限公司 | Pressurizing stop valve |
| CN203431210U (en) * | 2013-09-09 | 2014-02-12 | 大英县大科机械设备制造有限公司 | Bidirectional balancing type stop valve |
| CN103615549A (en) * | 2013-12-17 | 2014-03-05 | 北京航天益森风洞工程技术有限公司 | Large-caliber high-pressure pressure regulating valve for pneumatic test device |
| CN103939629A (en) * | 2014-02-18 | 2014-07-23 | 章华 | Double-seal linkage pilot valve element structure of high-pressure-difference valve |
-
2015
- 2015-04-29 CN CN201510210812.3A patent/CN104791501A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB248843A (en) * | 1924-12-12 | 1926-03-12 | John Dewrance | Improvements in or applicable to steam stop-valves |
| US3888280A (en) * | 1973-08-20 | 1975-06-10 | Rockwell International Corp | Bi-directional pressure balanced valve |
| CN2584969Y (en) * | 2002-11-22 | 2003-11-05 | 宁波法兰特阀门有限公司 | Balance stop valve |
| CN200989447Y (en) * | 2006-04-12 | 2007-12-12 | 上海亚核阀业成套有限公司 | Self-operated balancing stop valve |
| CN201322127Y (en) * | 2008-11-17 | 2009-10-07 | 宁波骏嘉重型机械制造有限公司 | Manual high-pressure sluice valve |
| CN102434676A (en) * | 2011-09-27 | 2012-05-02 | 福建菲达阀门有限公司 | Self-balancing stop valve |
| CN202674331U (en) * | 2012-07-23 | 2013-01-16 | 开维喜阀门集团有限公司 | Pressurizing stop valve |
| CN203431210U (en) * | 2013-09-09 | 2014-02-12 | 大英县大科机械设备制造有限公司 | Bidirectional balancing type stop valve |
| CN103615549A (en) * | 2013-12-17 | 2014-03-05 | 北京航天益森风洞工程技术有限公司 | Large-caliber high-pressure pressure regulating valve for pneumatic test device |
| CN103939629A (en) * | 2014-02-18 | 2014-07-23 | 章华 | Double-seal linkage pilot valve element structure of high-pressure-difference valve |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051171A (en) * | 2016-06-08 | 2016-10-26 | 中国船舶重工集团公司第七二五研究所 | Pressure self-balanced type stop check valve |
| CN108626404A (en) * | 2017-03-16 | 2018-10-09 | 费希尔控制产品国际有限公司 | Valve with whole machine balancing access |
| CN108626404B (en) * | 2017-03-16 | 2022-06-07 | 费希尔控制产品国际有限公司 | Valve with integral balancing passage |
| CN107131353A (en) * | 2017-04-25 | 2017-09-05 | 中国船舶重工集团公司第七二五研究所 | A kind of two-way low operational torque high-pressure stop valve |
| CN108708979A (en) * | 2018-08-01 | 2018-10-26 | 周君 | Bidirection press self-balance stop valve |
| CN108895166A (en) * | 2018-08-27 | 2018-11-27 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of valve |
| CN108895166B (en) * | 2018-08-27 | 2019-11-08 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of valve |
| EP3929476A4 (en) * | 2019-02-21 | 2022-11-16 | Fujikoki Corporation | Flow rate control valve |
| CN113339579A (en) * | 2021-07-01 | 2021-09-03 | 蓝晶晶 | Built-in pilot type stop valve |
| CN113700921A (en) * | 2021-08-31 | 2021-11-26 | 华中科技大学 | Electric direct-drive balanced type stop valve |
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| C06 | Publication | ||
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| EXSB | Decision made by sipo to initiate substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150722 |
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| RJ01 | Rejection of invention patent application after publication |