CN102865374B - Low-flow resistance stop valve - Google Patents
Low-flow resistance stop valve Download PDFInfo
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- CN102865374B CN102865374B CN201110186235.0A CN201110186235A CN102865374B CN 102865374 B CN102865374 B CN 102865374B CN 201110186235 A CN201110186235 A CN 201110186235A CN 102865374 B CN102865374 B CN 102865374B
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- flap
- valve body
- connecting rod
- rocking bar
- entrance channel
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Abstract
The invention discloses a low-flow resistance stop valve. The low-flow resistance stop valve comprises a valve body and is characterized in that an inlet runner (11) and an outlet runner (12) are symmetrically arranged at the two ends of the valve body, a valve clack (3) is arranged at an inner side edge (13) of the inlet runner (11), the valve body (1) also comprises a switching device (10) which is connected with the valve clack (3), when the stop valve is switched on, the switching device drives the valve clack (3) to rotate by a set angle so as to enable the valve clack (3) to be capable of avoiding that the axis of the inner side edge (13) of the inlet runner points at the extension line in the direction of the outlet runner (12) along with the inner side edge (13) of the inlet runner. The valve clack cannot block off fluid moving from the inlet runner to the outlet runner, so that the flow resistance of the stop valve is very small.
Description
Technical field
The present invention relates to valve technology field, particularly a kind of low flow resistance stop valve.
Background technique
Stop valve is because simple in structure, the feature such as cost is low, good airproof performance are widely used.But common stop valve is when opening, due to stopping or the impact of entrance channel and outlet flow shape of flap, fluid has larger loss through cut-off downstream pressure, for some fields, as aerospace fuel field requires fluid, reduce the pressure loss and fluctuation in course of conveying, this just requires stop valve flow resistance when having good sealing the smaller the better as far as possible.
In order to reduce the flow resistance of stop valve, Chinese patent CN 201141443Y, October 29 2008 publication date, a kind of heavy caliber low temperature Oblique Stop Valve is disclosed, in order to reduce the flow resistance of stop valve, the entrance channel of this stop valve and outlet flow are roughly in alignment, but the axis of the axis of entrance channel inside edge and outlet flow inside edge is perpendicular, the flap of stop valve can stop the moving direction of the fluid of entrance channel inflow after unlatching, so this stop valve reduces the limited in one's ability of flow resistance.
Summary of the invention
In order to solve the technical problem that stop valve flow resistance is larger, the invention provides a kind of low flow resistance stop valve, this stop valve has lower flow resistance.
The technological scheme that the present invention solves its technical problem employing is: a kind of low flow resistance stop valve, comprise valve body, it is characterized in that: the two ends of valve body are symmetrically arranged with entrance channel and outlet flow, entrance channel inside edge is provided with flap, valve body also comprises the switch gear being connected with flap, when opening stop valve, after switch gear drives flap to rotate a set angle, flap can be avoided the elongation line of entrance channel inside edge along the orientation of its axis outlet flow direction of entrance channel inside edge.
Entrance channel and outlet flow are symmetrical arranged, the axis of the axis of entrance channel inside edge and outlet flow inside edge is same axis, when opening stop valve, after switch gear drives flap to rotate a set angle, flap can be avoided the elongation line of entrance channel inside edge along the orientation of its axis outlet flow direction of entrance channel inside edge, flap can not stop the fluid of the motion from entrance channel to outlet flow direction like this, so reduced to the full extent the flow resistance of stop valve.
Preferably switch gear comprises rocking bar, rotating shaft and connecting rod, one end of rocking bar is connected the other end and is flexibly connected with connecting rod with flap, rotating shaft is fixedly connected with valve body and is flexibly connected with rocking bar, the connection part of rotating shaft and rocking bar is arranged between the connection part and rocking bar and the connection part of flap of connecting rod and rocking bar, and valve body is stretched out in one end of connecting rod.
Preferably switch gear comprises rocking bar, rotating shaft and connecting rod, one end of rocking bar is connected with flap, rotating shaft is fixedly connected with valve body and is flexibly connected with the other end of rocking bar, connecting rod is flexibly connected with rocking bar, the connection part of connecting rod and rocking bar is arranged between the connection part and flap and the connection part of rocking bar of rotating shaft and rocking bar, and valve body is stretched out in one end of connecting rod.
Preferably switch gear comprises rocking bar, rotating shaft and connecting rod, one end of rocking bar is connected with flap, the other end of rocking bar is flexibly connected with connecting rod, valve body is stretched out in one end of connecting rod, rotating shaft is fixed on the outside of entrance channel inside edge and is flexibly connected with flap, or rotating shaft is fixedly connected with valve body, rotating shaft is arranged on the outside of entrance channel inside edge and is flexibly connected with flap.
Preferably switch gear drives flap to rotate after a set angle, and flap is parallel with the axis of entrance channel inside edge, and flap and entrance channel inside edge tangent along the elongation line of the orientation of its axis outlet flow direction of entrance channel inside edge.
Preferably rocking bar is flexibly connected with flap, and the connection part of rocking bar and flap is arranged on the center of flap, or the connection part of rocking bar and flap is arranged on the edge of flap.
Preferably rocking bar is " > " font, and rotating shaft is arranged on the corner of " > " font rocking bar, and switch gear drives flap to rotate 80 °～100 °; Preferably 90 °.
Preferably the axis of connecting rod and the axis of entrance channel are parallel, and one end that preferred connecting rod stretches out valve body is provided with the first cylinder, or hydraulic jack.
Preferably the other end of connecting rod also stretches out valve body, and the connection part of connecting rod and rocking bar is arranged between the two ends that connecting rod stretches out valve body, and the other end that connecting rod stretches out valve body is also provided with the second cylinder, or hydraulic jack.
Preferably the arranged outside of valve body has vacuum layer; Or the arranged outside of valve body has adiabator layer; Or the arranged outside of valve body has vacuum layer, in vacuum layer, be also provided with adiabator layer.
The invention has the beneficial effects as follows, flap can not stop the fluid of the motion from entrance channel to outlet flow direction, so the flow resistance of stop valve is very little.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, low flow resistance stop valve of the present invention is specifically described.
Fig. 1 is the sectional view of low flow resistance stop valve under in off position in embodiment 1.
Fig. 2 is the sectional view of low flow resistance stop valve under opening state in embodiment 1.
Fig. 3 is the sectional view of low flow resistance stop valve under in off position in embodiment 2.。
Fig. 4 is the sectional view of low flow resistance stop valve under in off position in embodiment 3.
Fig. 5 is the sectional view of low flow resistance stop valve under opening state in embodiment 3.
1. valve bodies in figure, 2. vacuum layer, 3. flap, 4. adiabator layer, 5. the second cylinder, 6. rocking bar, 7. rotating shaft, 8. connecting rod, 9. the first cylinder, 10. switch gear, 11. entrance channels, 12. outlet flow, 13. entrance channel inside edges, 14. upper covers, 15. outlet flow inside edges.
Embodiment
In conjunction with Fig. 1 and Fig. 2, low flow resistance stop valve of the present invention is elaborated.Low flow resistance stop valve comprises valve body (1), valve body top is provided with upper cover 14, the two ends of valve body are symmetrically arranged with entrance channel 11 and outlet flow 12, entrance channel becomes cylindrical with outlet flow, the axis of the axis of entrance channel inside edge 13 and outlet flow inside edge 15 is same axis, entrance channel 11 inside edges 13 are provided with flap 3, valve body 1 also comprises the switch gear 10 being connected with flap 3, when opening stop valve, after switch gear 10 drives flap 3 to rotate a set angle, flap 3 can be avoided the elongation line of entrance channel inside edge 13 along orientation of its axis outlet flow 12 directions of entrance channel inside edge 13, be that flap 3 can be avoided the region between two dotted lines that in Fig. 2, entrance channel inside edge 13 extends to outlet flow inside edge 15.
In order to reduce the volume of valve body 1, more precisely reduce the height of valve body 1 on the axial direction of vertical and entrance channel 11, preferably switch gear 10 drives flap 3 to rotate after a set angle, flap 3 is parallel with the axis of entrance channel inside edge 13, and flap 3 is tangent along the elongation line of orientation of its axis outlet flow 12 directions of entrance channel inside edge 13 with entrance channel inside edge 13, in Fig. 2, cylindrical tangent shown in two dotted lines that flap 3 and entrance channel inside edge 13 extend to outlet flow inside edge 15.The height that reduces valve body can conveniently be installed, and avoids the limited space of mounting point and the valve body that causes conflicts mutually with building enclosed structure.
In order to reduce the volume of valve body, more precisely reduce valve body in the length along entrance channel 11 directions; Rocking bar 6 is " > " font, and the angle of " > " font rocking bar is 80 °～120 °, and rotating shaft 7 is arranged on the corner of " > " font rocking bar, and switch gear 10 drives flap 3 to rotate 80 °～100 °, preferably 90 °.Reducing valve body can avoid entrance channel 11 and outlet flow 12 spacings flow resistance excessive and that cause to increase along the length of entrance channel 11 directions.
In order further to reduce valve body 1 at the height perpendicular on entrance channel 11 axial directions, the axis of connecting rod 8 is parallel with the axis of entrance channel 11, the general valve rod of stop valve and the axis of entrance channel are vertical, reliable in order to guarantee sealing, along the direction of valve rod axis, arrange multi-sealed, so valve body is higher.The axis of connecting rod 8 is parallel with the axis of entrance channel 11, valve body is set like this and perpendicular to the height on entrance channel 11 axial directions, just can significantly reducing, and avoids valve to conflict mutually with the enclosed structure of pipeline when mounted.One end that preferred connecting rod 8 stretches out valve body 1 is provided with the first cylinder 9, or hydraulic jack.Cylinder or hydraulic jack promote connecting rod and raise the efficiency.
The other end of connecting rod 8 also stretches out valve body 1, and the connection part of connecting rod 8 and rocking bar 6 is arranged between the two ends that connecting rod 8 stretches out valve body 1, and the other end that connecting rod 8 stretches out valve body 1 is also provided with the second cylinder 5, or hydraulic jack.2 cylinders or hydraulic jack are set, and during opening stop valve, the second cylinder 5 starts, and pulls connecting rod 8; While closing stop valve, the first cylinder 9 starts, and pulls connecting rod 8.The benefit of design is like this, and opening and closing stop valve is all to pull connecting rod 8, and 8, connecting rod is subject to pulling force and is not stressed, and avoids the excessive and torsional deformation of connecting rod pressurized, and directly can reducing of connecting rod in addition saved material.
In order to make stop valve adapt to low temperature environment, improve the thermal insulation property of stop valve.The vacuum layer 2 that the arranged outside of valve body 1 has vacuum chamber to surround; Or the arranged outside of valve body 1 has adiabator layer 4; Or the arranged outside of valve body 1 has vacuum layer 2, vacuum layer 2 is interior is also provided with adiabator layer 4 near valve body one side.Described thermal insulating material be polymer foaming material as polyethylene foamed, polyurethane foam, expanded polystyrene, or be that organic fiber is if wool, inorfil are as rock wool, glass wool.
Low flow resistance stop valve of the present invention is because flap can not stop the fluid moving from entrance channel to outlet flow direction, so the flow resistance of stop valve is very little, the valve volume of this low flow resistance stop valve is relatively little easy for installation in addition, also has this low flow resistance stop valve to be also suitable for applying under low temperature environment.
The present embodiment is embodiment 1 one distortion, difference is that switch gear 10 comprises rocking bar 6, rotating shaft 7 and connecting rod 8, one end of rocking bar 6 is connected with flap 3, rotating shaft 7 is fixedly connected with valve body and is flexibly connected with the other end of rocking bar 6, connecting rod 8 is flexibly connected with rocking bar 6, the connection part of connecting rod 8 and rocking bar 6 is arranged between the connection part and flap 3 and the connection part of rocking bar 6 of rotating shaft 7 and rocking bar 6, and valve body 1 is stretched out in one end of connecting rod 8, sees Fig. 3.
The present embodiment is embodiment 1 another kind distortion, difference is that switch gear 10 comprises rocking bar 6, rotating shaft 7 and connecting rod 8, one end of rocking bar 6 is connected with flap 3, the other end of rocking bar 6 is flexibly connected with connecting rod 8, valve body 1 is stretched out in one end of connecting rod 8, and rotating shaft 7 is fixed on the outside of entrance channel 11 inside edges 13 and is flexibly connected with flap 3, or rotating shaft 7 is fixedly connected with valve body, rotating shaft is arranged on the outside of entrance channel 11 inside edges 13 and is flexibly connected with flap 3, sees Fig. 4, Fig. 5.While needing opening stop valve, connecting rod 8 pulls rocking bar 6, and rocking bar 6 drives flap 37 to rotate around the shaft.
The advantage of the present embodiment is simple in structure, and reliability is high, long service life.
Technical characteristics in embodiment 1 all can optionally be applied in embodiment 2 and embodiment 3, optionally independent assortment of the technical characteristics between different embodiments.
Claims (10)
1. one kind low flow resistance stop valve, comprise valve body (1), it is characterized in that: the two ends of valve body are symmetrically arranged with entrance channel (11) and outlet flow (12), entrance channel (11) inside edge (13) is provided with flap (3), valve body (1) also comprises the switch gear (10) being connected with flap (3), when opening stop valve, after switch gear (10) drives flap (3) to rotate a set angle, flap (3) can be avoided the elongation line of entrance channel inside edge (13) along orientation of its axis outlet flow (12) direction of entrance channel inside edge (13), described switch gear (10) comprises rocking bar (6), rotating shaft (7) and connecting rod (8), and one end of described rocking bar (6) is connected with flap (3), and valve body (1) is stretched out in one end of described connecting rod (8), described rotating shaft (7) is fixedly connected with valve body and is flexibly connected with the other end of rocking bar (6), connecting rod (8) is flexibly connected with rocking bar (6), and the connection part of connecting rod (8) and rocking bar (6) is arranged between the connection part and flap (3) and the connection part of rocking bar (6) of rotating shaft (7) and rocking bar (6), or, the other end of described rocking bar (6) is flexibly connected with connecting rod (8), rotating shaft (7) is fixed on the outside of entrance channel (11) inside edge (13) and is flexibly connected with flap (3), or rotating shaft (7) is fixedly connected with valve body, rotating shaft is arranged on the outside of entrance channel (11) inside edge (13) and is flexibly connected with flap (3).
2. one kind low flow resistance stop valve, comprise valve body (1), it is characterized in that: the two ends of valve body are symmetrically arranged with entrance channel (11) and outlet flow (12), entrance channel (11) inside edge (13) is provided with flap (3), valve body (1) also comprises the switch gear (10) being connected with flap (3), when opening stop valve, after switch gear (10) drives flap (3) to rotate a set angle, flap (3) can be avoided the elongation line of entrance channel inside edge (13) along orientation of its axis outlet flow (12) direction of entrance channel inside edge (13), switch gear (10) comprises rocking bar (6), rotating shaft (7) and connecting rod (8), one end of rocking bar (6) is connected the other end and is flexibly connected with connecting rod (8) with flap (3), rotating shaft (7) is fixedly connected with valve body and is flexibly connected with rocking bar (6), the connection part of rotating shaft (7) and rocking bar (6) is arranged between the connection part and rocking bar (6) and the connection part of flap (3) of connecting rod (8) and rocking bar (6), and valve body (1) is stretched out in one end of connecting rod (8), the axis of connecting rod (8) is parallel with the axis of entrance channel (11), and one end that connecting rod (8) stretches out valve body (1) is provided with the first cylinder (9), or hydraulic jack, the other end of connecting rod (8) also stretches out valve body (1), the connection part of connecting rod (8) and rocking bar (6) is arranged on connecting rod (8) and stretches out between the two ends of valve body (1), the other end that connecting rod (8) stretches out valve body (1) is also provided with the second cylinder (5), or hydraulic jack.
3. stop valve according to claim 1 and 2, it is characterized in that: switch gear drives flap (3) to rotate after a set angle, flap (3) is parallel with the axis of entrance channel inside edge (13), and flap (3) is tangent along the elongation line of orientation of its axis outlet flow (12) direction of entrance channel inside edge (13) with entrance channel inside edge (13).
4. stop valve according to claim 1 and 2, it is characterized in that: rocking bar (6) is flexibly connected with flap (3), the connection part of rocking bar (6) and flap (3) is arranged on the center of flap (3), or the connection part of rocking bar (6) and flap (3) is arranged on the edge of flap (3).
5. stop valve according to claim 2, is characterized in that: rocking bar (6) is " く " font, and rotating shaft (7) is arranged on the corner of " く " font rocking bar, and switch gear drives flap (3) to rotate 80 °～100 °.
6. stop valve according to claim 5, is characterized in that: described switch gear drives flap (3) to rotate 90 °.
7. stop valve according to claim 1, is characterized in that: the axis of connecting rod (8) is parallel with the axis of entrance channel (11).
8. stop valve according to claim 7, is characterized in that: one end that described connecting rod (8) stretches out valve body (1) is provided with the first cylinder (9), or hydraulic jack.
9. stop valve according to claim 8, it is characterized in that: the other end of connecting rod (8) also stretches out valve body (1), the connection part of connecting rod (8) and rocking bar (6) is arranged on connecting rod (8) and stretches out between the two ends of valve body (1), the other end that connecting rod (8) stretches out valve body (1) is also provided with the second cylinder (5), or hydraulic jack.
10. stop valve according to claim 1 and 2, is characterized in that: the arranged outside of valve body (1) has vacuum layer (2);
Or the arranged outside of valve body (1) has adiabator layer (4);
Or the arranged outside of valve body (1) has vacuum layer (2), in vacuum layer (2), be also provided with adiabator layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110186235.0A CN102865374B (en) | 2011-07-05 | 2011-07-05 | Low-flow resistance stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110186235.0A CN102865374B (en) | 2011-07-05 | 2011-07-05 | Low-flow resistance stop valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102865374A CN102865374A (en) | 2013-01-09 |
| CN102865374B true CN102865374B (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110186235.0A Expired - Fee Related CN102865374B (en) | 2011-07-05 | 2011-07-05 | Low-flow resistance stop valve |
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| CN (1) | CN102865374B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482004B (en) * | 2017-09-12 | 2021-09-14 | 苏州协昌环保科技股份有限公司 | Intelligent industrial flue gas and dust treatment cloud platform and control method thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482005B (en) * | 2017-09-12 | 2021-09-14 | 苏州协昌环保科技股份有限公司 | Off-line bag type dust collector of intelligent industrial flue gas and dust treatment cloud platform |
| CN112295328B (en) * | 2017-09-12 | 2022-05-20 | 苏州协昌环保科技股份有限公司 | Ash removal device of intelligent dust removal system and control method thereof |
| CN109372998A (en) * | 2018-12-27 | 2019-02-22 | 安徽新宁能源科技有限公司 | A kind of lower resistance loss quick-closing valve and its application method |
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| GB1062279A (en) * | 1963-07-24 | 1967-03-22 | Clement Ramsden | Improvements in non-return valves |
| CN2046958U (en) * | 1989-04-06 | 1989-11-01 | 杨玉思 | Hydraulic-control delayed on-off non-return valve |
| CN2114071U (en) * | 1991-08-01 | 1992-08-26 | 浙江大学 | Butterfly valve for controlling electrolyte proportion |
| CN2138224Y (en) * | 1992-09-24 | 1993-07-14 | 赵福远 | Check valve without block hammer |
| EP0885363B1 (en) * | 1996-03-11 | 1999-09-15 | North American Manufacturing Company | Diaphragm actuated air cycle valve |
| CN2395104Y (en) * | 1999-11-01 | 2000-09-06 | 山东省地质探矿机械厂 | Front to back circulation three way check device |
| CN2700659Y (en) * | 2004-06-03 | 2005-05-18 | 安徽铜都阀门有限公司 | Micro-resistance slowly-closing check-valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008075860A (en) * | 2006-09-25 | 2008-04-03 | Dmw Corp | Swing check valve |
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2011
- 2011-07-05 CN CN201110186235.0A patent/CN102865374B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1062279A (en) * | 1963-07-24 | 1967-03-22 | Clement Ramsden | Improvements in non-return valves |
| CN2046958U (en) * | 1989-04-06 | 1989-11-01 | 杨玉思 | Hydraulic-control delayed on-off non-return valve |
| CN2114071U (en) * | 1991-08-01 | 1992-08-26 | 浙江大学 | Butterfly valve for controlling electrolyte proportion |
| CN2138224Y (en) * | 1992-09-24 | 1993-07-14 | 赵福远 | Check valve without block hammer |
| EP0885363B1 (en) * | 1996-03-11 | 1999-09-15 | North American Manufacturing Company | Diaphragm actuated air cycle valve |
| CN2395104Y (en) * | 1999-11-01 | 2000-09-06 | 山东省地质探矿机械厂 | Front to back circulation three way check device |
| CN2700659Y (en) * | 2004-06-03 | 2005-05-18 | 安徽铜都阀门有限公司 | Micro-resistance slowly-closing check-valve |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2008-75860A 2008.04.03 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109482004B (en) * | 2017-09-12 | 2021-09-14 | 苏州协昌环保科技股份有限公司 | Intelligent industrial flue gas and dust treatment cloud platform and control method thereof |
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| CN102865374A (en) | 2013-01-09 |
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Inventor after: Teng Leijun Inventor after: Liang Huacheng Inventor after: Xu Honghao Inventor after: Lu Lanqing Inventor after: Shi Xiaoli Inventor after: He Changqing Inventor after: Wang Huiying Inventor after: Li Yapeng Inventor after: Shen Jing Inventor after: Zhang Hua Inventor before: Teng Leijun Inventor before: Lu Lanqing Inventor before: Shi Xiaoli Inventor before: He Changqing Inventor before: Wang Huiying Inventor before: Li Yapeng Inventor before: Shen Jing |
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Free format text: CORRECT: INVENTOR; FROM: TENG LEIJUN LU LANQING SHI XIAOLI HE CHANGQING WANG HUIYING LI YAPENG SHEN JING TO: TENG LEIJUN XU HONGHAO LU LANQING SHI XIAOLI HE CHANGQING WANG HUIYING LI YAPENG SHEN JING ZHANG HUA LIANG HUACHENG |
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Effective date of registration: 20160914 Address after: 100000, No. 6498, building 2, Heng Fu Street, Fengtai District Science Town, Beijing Patentee after: BEIJING AEROSPACE RATE MECHANICAL & ELECTRICAL ENGINEERING CO., LTD. Address before: 100074, Lane 1, Yungang Tian Town, Beijing, Fengtai District Patentee before: Beijing Institute of Aerospace Testing Technology |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20140423 Termination date: 20170705 |