CN102086938A - Reducing valve - Google Patents
Reducing valve Download PDFInfo
- Publication number
- CN102086938A CN102086938A CN 201110027048 CN201110027048A CN102086938A CN 102086938 A CN102086938 A CN 102086938A CN 201110027048 CN201110027048 CN 201110027048 CN 201110027048 A CN201110027048 A CN 201110027048A CN 102086938 A CN102086938 A CN 102086938A
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- valve
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- spring
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Abstract
The invention discloses a reducing valve. The reducing valve comprises a valve body, a valve cap, a diaphragm, an adjusting screw, an adjusting spring, a spring briquette, a spring fill block, a pressing sleeve, a valve clack component, a reset spring and a screw plug, wherein the valve clack component mainly comprises a valve clack, an ejector rod on the valve clack and a sealing element; a ladder shaped mounting hole is formed on the valve clack, one end of the mounting hole is used for mounting the ejector rod, while the other end of the mounting hole is used for mounting the reset spring; an axial blind hole is formed at the bottom of the ejector rod, and a plurality of radial return through holes are uniformly formed on the inner wall at the bottom of the blind hole; the diaphragm is a modified rubber diaphragm, and has the effect of slowing down impact when the valve is started to ensure stable pressure in the valve; pressure gauge interfaces are formed on two sides of the valve body; and washers are arranged on the ejector rod and the valve clack respectively. When the reducing valve is closed, medium at the outlet can flow into the bottom of the valve clack through the through holes on the ejector rod if the medium returns, the valve clack component is accelerated to reset under the action of liquid pressure and can better seal the reducing valve, so that the medium in the valve is prevented from returning.
Description
Technical field
The present invention relates to a kind of pressure piping element, refer more particularly to a kind of reduction valve.
Background technique
Reduction valve is applied to liquid oxygen, and liquid argon in the low-temperature pressure container equipment and pipeline of the accumulating of liquefied gas at low temp such as liquid nitrogen and LNG Liquefied natural gas, plays pressure stabilization function to the low-temperature pressure container internal pressure.After common reduction valve cut out, flap only by return spring mortgage return, liquid refluence phenomenon usually occurred, made the maintenance of other parts of pipeline replace comparatively inconvenience.
Summary of the invention
Technical problem to be solved by this invention is: the valve internal pressure was stablized, is had when closing check function and can connect the reduction valve that pressure gauge shows the valve internal pressure when a kind of the unlatching was provided.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of reduction valve comprises: valve body, valve gap, diaphragm, adjusting screw rod, Regulation spring, spring lock block, the spring cushion block, gland, the flap assembly, return spring and plug screw, valve gap is arranged on the valve body, diaphragm arrangement is between valve gap and valve body, adjusting screw rod is located on the valve gap, spring lock block, Regulation spring and spring cushion block are successively set on the interior adjusting screw rod end of valve gap between diaphragm, valve body is provided with a dashpot at the diaphragm mounting end, be provided with admission chamber in the valve body, go out sap cavity and spiro pluging hole, admission chamber and go out sap cavity and be connected with spiro pluging hole, go out the sap cavity bottom and offer the radial direction through hole that is connected with dashpot, go out also to connect between sap cavity and dashpot and be provided with a pore, plug screw is arranged in the spiro pluging hole, be provided with mounting groove in the plug screw, the flap assembly is arranged in the valve body, gland is arranged on the flap assembly, return spring is arranged on plug screw and flap inter-module, described flap assembly is mainly by flap, push rod and seal ring are formed, flap is arranged in the mounting groove of plug screw, seal ring is arranged on flap and goes out on the contacted end face in sap cavity feed liquor place, flap is provided with the return spring mounting hole near an end of mounting groove bottom, return spring is arranged in the return spring mounting hole, the other end of flap is provided with the push rod positioning hole that is connected with the return spring mounting hole, push rod one end is arranged in the flap, the push rod the other end is located in the radial direction through hole, the end that push rod is arranged in the flap offers axial blind hole, evenly be provided with some through holes that radially reflux on the blind hole bottom interior wall, blind hole depth need satisfy makes the backflow through hole be positioned at sap cavity, and gland is arranged on the end that push rod is positioned at dashpot.
Described diaphragm is the modified rubber diaphragm.
Described valve body both sides have with valve body in admission chamber and go out the pressure gauge connection that sap cavity is connected.
Described push rod is being provided with packing ring with the contacted position of radial direction through hole wall, and described flap also is being provided with packing ring with the contacted position of the mounting groove of plug screw.
Advantage of the present invention is: when reduction valve cuts out, the medium that goes out in the sap cavity can flow into the flap bottom by the backflow through hole on the push rod, the flap assembly can quicken return and can better seal reduction valve under the effect of fluid pressure, so just guaranteed the phenomenon that medium can not occur flowing backwards in the valve.
Owing to adopted the modified rubber diaphragm, the effect of slowing down impact is arranged when valve opening, make the valve internal pressure more stable; Because the relief valve body both sides have pressure gauge connection, connect the pressure that can show behind the pressure gauge in the pressurized container.Owing to be respectively arranged with packing ring on push rod and the flap, medium is to the impact of push rod and flap when having slowed down the reduction valve use.
Description of drawings
Fig. 1 looks generalized section for master of the present invention.
Fig. 2 looks generalized section for the right side of the present invention.
Fig. 3 is a flap assembly schematic representation of the present invention.
Among Fig. 1 to Fig. 3: 1. valve body, 101. dashpot, 102. admission chamber, 103. go out sap cavity, 104. spiro pluging hole, 105. radial direction through hole, 106. pore, 2. valve gap, 3. diaphragm, 4. adjusting screw rod, 5. Regulation spring, 6. spring lock block, 7. spring cushion block, 8. gland, 9. flap assembly, 10. return spring, 11. plug screw, 111. mounting groove, 12. flap, 121. return spring mounting hole, 122. push rod positioning hole, 13. push rod, 131. blind hole, 132. backflow through hole, 14. seal ring, 15. pressure gauge connection, 16. packing ring.
Embodiment
Describe particular content of the present invention in detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 to Figure 3, a kind of reduction valve comprises: valve body 1, valve gap 2, diaphragm 3, adjusting screw rod 4, Regulation spring 5, spring lock block 6, spring cushion block 7, gland 8, flap assembly 9, return spring 10 and plug screw 11, valve gap 2 is arranged on the valve body 1, diaphragm 3 is arranged on 1 of valve gap 2 and valve body, adjusting screw rod 4 is located on the valve gap 2, spring lock block 6, Regulation spring 5 and spring cushion block 7 are successively set on valve gap 2 interior adjusting screw rod 4 ends to 3 on diaphragm, valve body 1 is provided with a dashpot 101 at diaphragm 3 mounting ends, be provided with admission chamber 102 in the valve body 1, go out sap cavity 103 and spiro pluging hole 104, admission chamber 102 and go out sap cavity 103 and be connected with spiro pluging hole 104, go out sap cavity 103 bottoms and offer the radial direction through hole 105 that is connected with dashpot 101, going out 101 of sap cavity 103 and dashpots also connects and is provided with a pore 106, plug screw 11 is arranged in the spiro pluging hole 104, be provided with mounting groove 111 in the plug screw 11, flap assembly 9 is arranged in the valve body 1, gland 8 is arranged on the flap assembly 9, return spring 10 is arranged on 9 of plug screw 11 and flap assemblies, described flap assembly 9 is mainly by flap 12, push rod 13 and seal ring 14 are formed, flap 12 is arranged in the mounting groove 111 of plug screw 11, seal ring 14 is arranged on flap 12 and goes out on the contacted end face in sap cavity 103 feed liquor places, flap 12 is provided with return spring mounting hole 121 near an end of mounting groove 111 bottoms, return spring 10 is arranged in the return spring mounting hole 121, the other end of flap 12 is provided with the push rod positioning hole 122 that is connected with return spring mounting hole 121, push rod 13 1 ends are arranged in the flap 12, push rod 13 the other ends are located in the radial direction through hole 105, the end that push rod 13 is arranged in the flap 12 offers axial blind hole 131, evenly be provided with some through holes 132 that radially reflux on blind hole 131 bottom interior wall, blind hole 131 degree of depth need satisfy makes backflow through hole 132 be positioned at sap cavity 103, and gland 8 is arranged on the end that push rod 13 is positioned at dashpot 101.
Described diaphragm 3 is the modified rubber diaphragm.
Described valve body 1 both sides have with valve body 1 interior admission chamber 102 and go out the pressure gauge connection 15 that sap cavity 103 is connected.
Described push rod 13 is being provided with packing ring 16 with the contacted position of radial direction through hole 105 walls, and described flap 12 also is provided with packing ring 16 in the mounting groove 111 contacted positions with plug screw 11.
When reduction valve need be opened, only need to rotate adjusting screw rod 4, make Regulation spring 5 compressions, and flap assembly 9 is depressed by spring cushion block 7, diaphragm 3, gland 8 and push rod 13 transmissions.The medium of high pressure feeds work system behind expenditure and pressure like this.Thereby rotating Lift that adjusting screw rod 4 can change flap assembly 9 regulates the rate-of flow that passes through and reaches required force value.
When reduction valve cuts out, the outlet port medium will flow into flap 12 bottoms by the backflow through hole on the push rod 13 132 if flow backwards, flap assembly 9 can quicken return and can better seal reduction valve under the effect of fluid pressure, so just guaranteed the phenomenon that medium can not occur flowing backwards in the valve.
Owing to adopted modified rubber diaphragm 3, the effect of slowing down impact is arranged when valve opening, make the valve internal pressure more stable.
Because relief valve body 1 both sides of this kind new structure have pressure gauge connection 15, connect the pressure that can show behind the pressure gauge in the pressurized container.
Owing to be respectively arranged with packing ring 16 on push rod 13 and the flap 12, medium is to the impact of push rod 13 and flap 12 when having slowed down the reduction valve use.
Claims (4)
1. a reduction valve comprises: valve body, valve gap, diaphragm, adjusting screw rod, Regulation spring, spring lock block, the spring cushion block, gland, the flap assembly, return spring and plug screw, valve gap is arranged on the valve body, diaphragm arrangement is between valve gap and valve body, adjusting screw rod is located on the valve gap, spring lock block, Regulation spring and spring cushion block are successively set on the interior adjusting screw rod end of valve gap between diaphragm, valve body is provided with a dashpot at the diaphragm mounting end, be provided with admission chamber in the valve body, go out sap cavity and spiro pluging hole, admission chamber and go out sap cavity and be connected with spiro pluging hole, go out the sap cavity bottom and offer the radial direction through hole that is connected with dashpot, go out also to connect between sap cavity and dashpot and be provided with a pore, plug screw is arranged in the spiro pluging hole, be provided with mounting groove in the plug screw, the flap assembly is arranged in the valve body, gland is arranged on the flap assembly, return spring is arranged on plug screw and flap inter-module, it is characterized in that: described flap assembly is mainly by flap, push rod and seal ring are formed, flap is arranged in the mounting groove of plug screw, seal ring is arranged on flap and goes out on the contacted end face in sap cavity feed liquor place, flap is provided with the return spring mounting hole near an end of mounting groove bottom, return spring is arranged in the return spring mounting hole, the other end of flap is provided with the push rod positioning hole that is connected with the return spring mounting hole, push rod one end is arranged in the flap, the push rod the other end is located in the radial direction through hole, the end that push rod is arranged in the flap offers axial blind hole, evenly be provided with some through holes that radially reflux on the blind hole bottom interior wall, blind hole depth need satisfy makes the backflow through hole be positioned at sap cavity, and gland is arranged on the end that push rod is positioned at dashpot.
2. reduction valve as claimed in claim 1 is characterized in that: described diaphragm is the modified rubber diaphragm.
3. reduction valve as claimed in claim 1 is characterized in that: described valve body both sides have with valve body in admission chamber and go out the pressure gauge connection that sap cavity is connected.
4. reduction valve as claimed in claim 1 is characterized in that: described push rod is being provided with packing ring with the contacted position of radial direction through hole wall, and described flap also is being provided with packing ring with the contacted position of the mounting groove of plug screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110027048 CN102086938B (en) | 2011-01-25 | 2011-01-25 | Reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110027048 CN102086938B (en) | 2011-01-25 | 2011-01-25 | Reducing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102086938A true CN102086938A (en) | 2011-06-08 |
| CN102086938B CN102086938B (en) | 2013-04-10 |
Family
ID=44098859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110027048 Active CN102086938B (en) | 2011-01-25 | 2011-01-25 | Reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102086938B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968119A (en) * | 2014-04-21 | 2014-08-06 | 中国航空工业集团公司沈阳空气动力研究所 | Vacuum pressure regulating valve |
| CN104676060A (en) * | 2015-02-09 | 2015-06-03 | 温州市隆潮阀门有限公司 | Decompression non-return digital control valve |
| CN105003734A (en) * | 2015-06-24 | 2015-10-28 | 何小平 | Flow diversion pressure reducing valve |
| CN106462170A (en) * | 2014-06-12 | 2017-02-22 | 彼得罗菲奥伦蒂尼有限公司 | Pressure relief valve for a pressure regulator and pressure regulator comprising said pressure relief valve |
| CN108443546A (en) * | 2018-05-09 | 2018-08-24 | 杭州华惠阀门有限公司 | A kind of steam converter valve convenient for adjusting |
| CN109357066A (en) * | 2018-10-04 | 2019-02-19 | 盐城欧润石化设备制造有限公司 | A kind of interlocking valve |
| CN109827001A (en) * | 2019-03-29 | 2019-05-31 | 宿迁菡束环保设备有限公司 | A kind of valve body |
| CN110985723A (en) * | 2019-12-06 | 2020-04-10 | 湖南天泓液压机械有限公司 | Overpressure valve for hydraulic device |
| US10907743B2 (en) | 2018-03-12 | 2021-02-02 | Ishizaki Co., Ltd. | Check valve and reciprocating body for check valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2567235B1 (en) * | 1984-07-06 | 1987-01-09 | Joly Luc | IMPROVED REGULATOR, ESPECIALLY FOR SMALL DEBITS |
| CN2460821Y (en) * | 2001-01-11 | 2001-11-21 | 唐琳海 | No-pressurization gas pressure reducer |
| CN2748724Y (en) * | 2004-05-03 | 2005-12-28 | 麦广海 | Pressure relief valve |
| CN201180829Y (en) * | 2007-09-17 | 2009-01-14 | 陈志聪 | High sensitivity adjustable pressure reducing valve |
| CN201661740U (en) * | 2010-01-20 | 2010-12-01 | 浙江三方控制阀股份有限公司 | Self-operated internal feedback miniature reducing valve |
| CN201934677U (en) * | 2011-01-25 | 2011-08-17 | 张家港富瑞特种装备股份有限公司 | Pressure relief valve |
-
2011
- 2011-01-25 CN CN 201110027048 patent/CN102086938B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2567235B1 (en) * | 1984-07-06 | 1987-01-09 | Joly Luc | IMPROVED REGULATOR, ESPECIALLY FOR SMALL DEBITS |
| CN2460821Y (en) * | 2001-01-11 | 2001-11-21 | 唐琳海 | No-pressurization gas pressure reducer |
| CN2748724Y (en) * | 2004-05-03 | 2005-12-28 | 麦广海 | Pressure relief valve |
| CN201180829Y (en) * | 2007-09-17 | 2009-01-14 | 陈志聪 | High sensitivity adjustable pressure reducing valve |
| CN201661740U (en) * | 2010-01-20 | 2010-12-01 | 浙江三方控制阀股份有限公司 | Self-operated internal feedback miniature reducing valve |
| CN201934677U (en) * | 2011-01-25 | 2011-08-17 | 张家港富瑞特种装备股份有限公司 | Pressure relief valve |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968119A (en) * | 2014-04-21 | 2014-08-06 | 中国航空工业集团公司沈阳空气动力研究所 | Vacuum pressure regulating valve |
| CN106462170A (en) * | 2014-06-12 | 2017-02-22 | 彼得罗菲奥伦蒂尼有限公司 | Pressure relief valve for a pressure regulator and pressure regulator comprising said pressure relief valve |
| CN106462170B (en) * | 2014-06-12 | 2021-05-18 | 彼得罗菲奥伦蒂尼有限公司 | Pressure relief valve for a pressure regulator and pressure regulator |
| CN104676060A (en) * | 2015-02-09 | 2015-06-03 | 温州市隆潮阀门有限公司 | Decompression non-return digital control valve |
| CN104676060B (en) * | 2015-02-09 | 2018-05-29 | 温州市隆潮阀门有限公司 | Pressure reduction non-return digital control valve |
| CN105003734A (en) * | 2015-06-24 | 2015-10-28 | 何小平 | Flow diversion pressure reducing valve |
| US10907743B2 (en) | 2018-03-12 | 2021-02-02 | Ishizaki Co., Ltd. | Check valve and reciprocating body for check valve |
| CN108443546A (en) * | 2018-05-09 | 2018-08-24 | 杭州华惠阀门有限公司 | A kind of steam converter valve convenient for adjusting |
| CN108443546B (en) * | 2018-05-09 | 2019-08-30 | 杭州华惠阀门有限公司 | A kind of steam converter valve convenient for adjusting |
| CN109357066A (en) * | 2018-10-04 | 2019-02-19 | 盐城欧润石化设备制造有限公司 | A kind of interlocking valve |
| CN109827001A (en) * | 2019-03-29 | 2019-05-31 | 宿迁菡束环保设备有限公司 | A kind of valve body |
| CN109827001B (en) * | 2019-03-29 | 2024-03-19 | 南京菡束环保设备有限公司 | Valve body |
| CN110985723A (en) * | 2019-12-06 | 2020-04-10 | 湖南天泓液压机械有限公司 | Overpressure valve for hydraulic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102086938B (en) | 2013-04-10 |
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