CN100359230C - Composite dual-supporting double-speed multifunctional valve - Google Patents
Composite dual-supporting double-speed multifunctional valve Download PDFInfo
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- CN100359230C CN100359230C CNB2004100466737A CN200410046673A CN100359230C CN 100359230 C CN100359230 C CN 100359230C CN B2004100466737 A CNB2004100466737 A CN B2004100466737A CN 200410046673 A CN200410046673 A CN 200410046673A CN 100359230 C CN100359230 C CN 100359230C
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Abstract
The present invention relates to a valve which is installed on a pump outlet in a water pump water transfer pipeline system and has the functions of water hammer elimination, return prevention, regulation, etc. The valve comprises a lower valve cover, a valve body, a lower middle cover, a lower lug of a main valve plate, a main valve plate, a secondary valve plate lug, a valve rod, an upper lug of the main valve plate, an upper middle cover, an upper valve cover, a secondary valve plate, a sealing surface of the secondary valve plate, a small sealing surface of the main valve plate, a discharge hole of the main valve plate, and a big sealing surface of the main valve plate, wherein the main valve plate can agilely rotate by using the lower middle cover and the upper middle cover as a first pair of supports; the upper end and the bond of the valve rod are used as an external power transmission device, and an upper bearing and a lower bearing are used as a second pair of bearings to support the valve rod and the secondary valve plate; and the rotation center of the valve plate and the secondary valve plate, and the centerline of the valve body are not coincident to have certain eccentric distance. The dual speed, dual support and dual butterfly plate valve integrates the functions of slow closing, slow opening, return prevention, water hammer elimination, flow regulation and the like into a whole, and improves the work efficiency and the reliability of pipeline systems.
Description
Technical field
The present invention relates to be installed in a kind of water pump water transport pipeline system and have an elimination water hammer on the pump discharge, non-return is regulated the valve of function such as flow, belongs to the valve that two butterfly plate double speeds of composite-type dual-gripper that a kind of opening speed, closing velocity can control open and close.
Background technique
In water pump pipe-line for conveying liquids system, when pump startup, require the pump discharge valve to close, just opening valve after the pump startup operation is normal flows in the pipeline by liquid, the electric motor starting electric current that drives pump in the time of can guaranteeing pump startup like this is less, play the not effect of overcurrent of protection motor, therefore, will adorn a motor-operated control valve in the pump discharge section; When pump is out of service, require the pump discharge valve to close rapidly, cut-out liquid flows backwards, so just require also will adorn a safety check in the pump discharge section, but because when cutting off current, the inertia of current will produce water hammer, the pressure that water hammer produces usually is the several times of normal pressure in the pipeline, high like this water hammer pressure often causes pipeline breaking, and therefore the generation accident also should adorn a water-hammer arrester at the pump discharge place.Like this, in order to guarantee safe, the normal operation of pump pipeline system, in the pump discharge section three devices (motor-operated control valve, safety check, water-hammer arrester) should be housed at least, thereby pump discharge section apparatus is many, energy consumption is many, the fault point is many, maintenance workload is also big, wherein any one device is out of order and all will makes the whole system cisco unity malfunction, uses extremely inconvenience, has influenced the working efficiency of entire pump pipe-line system.And the two plate control valves of the double speed that uses at present are shared owing to two valve plates support, and promptly shared same valve rod is for supporting, and son, two valve plates of mother are controlled by valve rod all, inconvenience is movable respectively, also inconvenience control of speed, the valve rod control force is big, and it is poor to eliminate the impacts of performance such as water hammer, non-return, adjusting.
Summary of the invention
Technical problem to be solved by this invention is to be to provide a kind of valve with the two butterfly plates of double speed dual-gripper that can control unlatching, closing velocity, it integrates Slow Close, close soon, slowly open, non-return, elimination water hammer, regulate function such as flow, control its motion jointly by moment and external drive unit that the pressure flow body that flows through self acts on the eccentric valve plate, can replace the multiple composite set of pump discharge section and various pair of present plate double speed valve fully, improve the working efficiency and the reliability of pipe-line system.
The present invention solves its technical problem and adopts following technological scheme: the present invention is by seal ring, end cap, screw, thrust ring, lower bearing, lower valve sleeve, valve body, cover down, ear under the main-valve plate, the main-valve plate, key, sub-valve plate ear, pin, valve rod, ear on the main-valve plate, cover in going up, upper valve sleeve, upper bearing (metal), attachment hole, the valve rod upper end, sub-valve plate, sub-sealing surface of valve plate, main-valve plate primary sealing surface, main-valve plate discharge orifice, the big sealing surface of main-valve plate, the valve import, valve outlet port is formed, in valve body lower end lower valve sleeve is housed, cover in being equipped with down on the lower valve sleeve, lower bearing, thrust ring, with end cap push down thrust ring and with screw with end cap, lower valve sleeve and valve body are fastening, between lower valve sleeve and valve body, seal ring is housed, between lower valve sleeve and the end cap seal ring is housed, cover in being equipped with on the upper valve sleeve, upper bearing (metal), with screw with upper bearing (metal), upper valve sleeve is together fastening with valve body, between valve body and upper valve sleeve, seal ring is housed, between upper valve sleeve and the upper bearing (metal) seal ring is housed, the main-valve plate is by ear under the main-valve plate, ear is contained in respectively on lower valve sleeve and the upper valve sleeve on the main-valve plate, under the main-valve plate ear and down between the cover and on the main-valve plate ear with last in the equivalent gap is arranged between overlapping, cover and upward middle cover were as first pair of supporting rotation flexibly during main-valve plate energy was following, sub-valve plate ear is positioned under the main-valve plate on the ear and main-valve plate in the middle of the ear, key is housed on valve rod, valve rod passes upper bearing (metal), sub-valve plate ear, lower bearing, sub-valve plate is connected with valve rod by key and is fastening with pin, sub-sealing surface of valve plate is arranged on the sub-valve plate, have main-valve plate discharge orifice on the main-valve plate, main-valve plate primary sealing surface is arranged on the main-valve plate, the big sealing surface of main-valve plate, valve body sealing surface is arranged on the valve body, valve rod upper end and key are second pair of supporting supporting valve rod and sub-valve plate as external actuating unit with upper bearing (metal) and lower bearing, the center of rotation of main-valve plate and sub-valve plate does not overlap with the valve body center line, and certain throw of eccentric is arranged.
When valve of the present invention is in full closing state, the big sealing surface of main-valve plate closely contacts with valve body sealing surface, main-valve plate primary sealing surface closely contacts with sub-sealing surface of valve plate, the valve import, valve outlet port is isolated fully, fluid can not pass through: when valve is in opening process, valve inlet hydrodynamic pressure is higher than valve outlet port place hydrodynamic pressure, form a pressure difference, this pressure difference exists an eccentric moment to promote the main-valve plate on the main-valve plate and sub-valve plate together rotates unlatching, this moment, big sealing surface of main-valve plate and valve body sealing surface broke away from, the actuating unit that connects by valve rod upper end and key can the resisting moment size of control action on valve rod and sub-valve plate, thereby the opening speed of control valve reaches full-gear until valve, the valve import is communicated fully with valve outlet port, fluid flows through valve body with peak rate of flow, when perhaps adjusting resisting moment and equaling eccentric moment, can control main-valve plate and the sub-valve plate a certain position between between complete shut-down and full-gear, promptly be in the part opening state, valve import and valve outlet port are in the part connected state, flow through the fluid flow of valve body this moment between zero delivery and peak rate of flow, be that valve is in the Flow-rate adjustment state, realize slow opening and flow regulating function; When valve is in the pass closed procedure, valve outlet port place hydrodynamic pressure is greater than valve inlet hydrodynamic pressure, form a pressure difference, this pressure difference forms a reverse eccentric moment on the main-valve plate, main-valve plate quick rotation is closely contacted with valve body sealing surface up to the big sealing surface of main-valve plate, fluid is oppositely blocked from the fluid major part of valve outlet port flow valves import, realize the quick closedown check function, still have this moment segment fluid flow to pass through main-valve plate discharge orifice on the main-valve plate from the import of valve outlet port flow valves, this partial reflux fluid releases because the water hammer pressure that fluid inertia causes, realize eliminating the water hammer function, giving valve plate and valve rod slowly closes closely to contact with main-valve plate primary sealing surface up to sub-sealing surface of valve plate under the outer force actuators control of valve rod top and key and blocks main-valve plate discharge orifice, valve outlet port and valve import are isolated fully, block whole reflux fluids, realize closing slowly and complete check function.
The valve that can control unlatching, closing velocity provided by the invention with the two butterfly plates of double speed dual-gripper, integrate Slow Close, close soon, one slowly open, non-return, elimination water hammer, regulate function such as flow, control its motion jointly by moment and external drive unit that the pressure flow body that flows through self acts on the eccentric valve plate, can replace the multiple composite set of pump discharge section and various pair of present plate double speed valve fully, improve the working efficiency and the reliability of pipe-line system.
Description of drawings
Fig. 1 is an overall construction drawing of the present invention.
Fig. 2 is a buttoned-up status structural drawing of the present invention.
Fig. 3 is a complete opening structure graph of the present invention.
Fig. 4 is a main-valve plate quick closedown structure graph of the present invention.
Fig. 5 is the sub-valve plate of a present invention closed condition structural drawing at a slow speed.
Embodiment
The present invention is by seal ring 1,5,19,23,26, end cap 2, screw 3,22, thrust ring 4, lower bearing 6, lower valve sleeve 7, valve body 8, cover 9 down, ear 10 under the main-valve plate, main-valve plate 11, key 12,24, sub-valve plate ear 13, pin 14, valve rod 15, ear 16 on the main-valve plate, cover 17 in going up, upper valve sleeve 18, upper bearing (metal) 20, attachment hole 21, valve rod upper end 25, sub-valve plate 27, sub-sealing surface of valve plate 28, main-valve plate primary sealing surface 29, main-valve plate discharge orifice 30, the big sealing surface 31 of main-valve plate, valve import 101, valve outlet port 102 is formed, in valve body 8 lower ends lower valve sleeve 7 is housed, cover 9 in being equipped with down on the lower valve sleeve 7, lower bearing 6, thrust ring 4, push down thrust ring 4 and use screw 3 with end cap 2 end cap 2, lower valve sleeve 7 is fastening with valve body 8, between lower valve sleeve 7 and valve body 8, seal ring 5 is housed, between lower valve sleeve 7 and the end cap 2 seal ring 1 is housed, cover 17 in being equipped with on the upper valve sleeve 18, upper bearing (metal) 20, with screw 22 with upper bearing (metal) 20, upper valve sleeve 18 is together fastening with valve body 8, between valve body 8 and upper valve sleeve 18, seal ring 26 is housed, between upper valve sleeve 18 and the upper bearing (metal) 20 seal ring 23 is housed, main-valve plate 11 is by ear 10 under the main-valve plate, ear 16 is contained in respectively on lower valve sleeve 7 and the upper valve sleeve 18 on the main-valve plate, under the main-valve plate ear 10 and down between the cover 9 and on the main-valve plate ear 16 with last in the equivalent gap is arranged between overlapping 17, main-valve plate 11 can be following in cover 9 and last in cover 17 rotate flexibly as first pair of supporting, sub-valve plate ear 13 is positioned under the main-valve plate on the ear 10 and main-valve plate in the middle of the ear 16, key 12 is housed on valve rod 15,24, valve rod 15 passes upper bearing (metal) 20, sub-valve plate ear 13, lower bearing 6, sub-valve plate 27 is connected with valve rod 15 by key 12 and is fastening with pin 14, sub-sealing surface of valve plate 28 is arranged on the sub-valve plate 27, have main-valve plate discharge orifice 30 on the main-valve plate 11, main-valve plate primary sealing surface 29 is arranged on the main-valve plate 11, the big sealing surface 31 of main-valve plate, valve body sealing surface 32 is arranged on the valve body 8, valve rod upper end 25 and key 24 are second pair of supporting supporting valve rod 15 and sub-valve plate 27 as external actuating unit with upper bearing (metal) 20 and lower bearing 6, the center of rotation of main-valve plate 11 and sub-valve plate 27 does not overlap with valve body 8 center lines, and certain throw of eccentric is arranged.
The present invention with said structure can be achieved as follows function:
When valve of the present invention is in full closing state, the big sealing surface 31 of main-valve plate closely contacts with valve body sealing surface 32, main-valve plate primary sealing surface 29 closely contacts with sub-sealing surface of valve plate 28, valve import 101, valve outlet port 102 is isolated fully, fluid can not pass through: when valve is in opening process, valve import 101 place's hydrodynamic pressures are higher than valve outlet port 102 place's hydrodynamic pressures, form a pressure difference, this pressure difference exists an eccentric moment to promote main-valve plate 11 on main-valve plate 11 and sub-valve plate 27 together rotates unlatching, the big sealing surface 31 of main-valve plate this moment breaks away from valve body sealing surface 32, the actuating unit that connects by valve rod upper end 25 and key 24 can the resisting moment size of control action on valve rod 15 and sub-valve plate 27, thereby the opening speed of control valve reaches full-gear until valve, valve import 101 is communicated fully with valve outlet port 102, fluid flows through valve body with peak rate of flow, when perhaps adjusting resisting moment and equaling eccentric moment, can control main-valve plate 11 and the sub-valve plate 27 a certain position between between complete shut-down and full-gear, promptly be in the part opening state, valve import 101 is in the part connected state with valve outlet port 102, flow through the fluid flow of valve body this moment between zero delivery and peak rate of flow, be that valve is in the Flow-rate adjustment state, realize slow opening and flow regulating function; When valve is in the pass closed procedure, valve outlet port 102 place's hydrodynamic pressures are greater than valve import 101 place's hydrodynamic pressures, form a pressure difference, this pressure difference forms a reverse eccentric moment on main-valve plate 11, main-valve plate 11 quick rotation are closely contacted with valve body sealing surface 32 up to the big sealing surface 31 of main-valve plate, fluid is oppositely blocked from the fluid major part of valve outlet port 102 flow valves imports 101, realize the quick closedown check function, still have this moment segment fluid flow to pass through main-valve plate discharge orifice 30 on the main-valve plate 11 from valve outlet port 102 flow valves imports 101, this partial reflux fluid releases because the water hammer pressure that fluid inertia causes, realize eliminating the water hammer function, sub-valve plate 27 is slowly closed under the outer force actuators control of valve rod top 25 and key 24 up to sub-sealing surface of valve plate 28 with valve rod 15 and is blocked main-valve plate discharge orifice 30 with main-valve plate primary sealing surface 29 tight contacts, valve outlet port 102 and valve import 101 are isolated fully, blocked whole reflux fluids and realize closing slowly and complete check function.
Claims (1)
1, a kind of composite-type dual-supporting dual-speed multifunctional valve, by seal ring (1,5,19,23,26), end cap (2), screw (3,22), thrust ring (4), lower bearing (6), lower valve sleeve (7), valve body (8), cover (9) down, ear under the main-valve plate (10), main-valve plate (11), key (12,24), sub-valve plate ear (13), pin (14), valve rod (15), ear on the main-valve plate (16), cover (17) in going up, upper valve sleeve (18), upper bearing (metal) (20), attachment hole (21), valve rod upper end (25), sub-valve plate (27), sub-sealing surface of valve plate (28), main-valve plate primary sealing surface (29), main-valve plate discharge orifice (30), the big sealing surface of main-valve plate (31), valve import (101), valve outlet port (102) is formed, it is characterized in that lower valve sleeve (7) being housed in valve body (8) lower end, cover (9) in being equipped with down on the lower valve sleeve (7), lower bearing (6), thrust ring (4), push down thrust ring (4) and use screw (3) with end cap (2) end cap (2), lower valve sleeve (7) is fastening with valve body (8), between lower valve sleeve (7) and valve body (8), seal ring (5) is housed, between lower valve sleeve (7) and the end cap (2) seal ring (1) is housed, cover (17) in being equipped with on the upper valve sleeve (18), upper bearing (metal) (20), with screw (22) with upper bearing (metal) (20), upper valve sleeve (18) is together fastening with valve body (8), between valve body (8) and upper valve sleeve (18), seal ring (26) is housed, between upper valve sleeve (18) and the upper bearing (metal) (20) seal ring (23) is housed, main-valve plate (11) is by ear (10) under the main-valve plate, ear on the main-valve plate (16) is contained in respectively on lower valve sleeve (7) and the upper valve sleeve (18), ear under the main-valve plate (10) and down between the cover (9) and on the main-valve plate ear (16) with last in overlap between (17) the equivalent gap arranged, rotated flexibly as first pair of supporting cover (9) and last middle overlap (17) during main-valve plate (11) energy was following, sub-valve plate ear (13) is positioned at ear (16) centre on ear under the main-valve plate (10) and the main-valve plate, on valve rod (15), key (12 is housed, 24), valve rod (15) passes upper bearing (metal) (20), sub-valve plate ear (13), lower bearing (6), sub-valve plate (27) is connected with valve rod (15) by key (12) and is fastening with pin (14), sub-sealing surface of valve plate (28) is arranged on the sub-valve plate (27), have main-valve plate discharge orifice (30) on the main-valve plate (11), main-valve plate primary sealing surface (29) is arranged on the main-valve plate (11), the big sealing surface of main-valve plate (31), valve body sealing surface (32) is arranged on the valve body (8), valve rod upper end (25) and key (24) are second pair of supporting supporting valve rod (15) and sub-valve plate (27) as external actuating unit with upper bearing (metal) (20) and lower bearing (6), the center of rotation of main-valve plate (11) and sub-valve plate (27) does not overlap with valve body (8) center line, and certain throw of eccentric is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100466737A CN100359230C (en) | 2004-08-19 | 2004-08-19 | Composite dual-supporting double-speed multifunctional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100466737A CN100359230C (en) | 2004-08-19 | 2004-08-19 | Composite dual-supporting double-speed multifunctional valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1598377A CN1598377A (en) | 2005-03-23 |
| CN100359230C true CN100359230C (en) | 2008-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100466737A Expired - Fee Related CN100359230C (en) | 2004-08-19 | 2004-08-19 | Composite dual-supporting double-speed multifunctional valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN100359230C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100564965C (en) * | 2007-06-04 | 2009-12-02 | 占春龙 | Guiding high pressure butterfly valve |
| CN102155544B (en) * | 2010-04-28 | 2013-02-13 | 荆锁祥 | Valve plate eccentric valve with slowly-closed check function |
| CN102330824A (en) * | 2011-09-21 | 2012-01-25 | 铁岭方众阀门有限公司 | Butterfly valve provided with main and auxiliary butterfly plates |
| CN102563131A (en) * | 2011-12-30 | 2012-07-11 | 无锡市华东电力设备有限公司 | Diaphragm type check device with ball containing chamber |
| CN102644828A (en) * | 2012-03-16 | 2012-08-22 | 贵州省水利水电勘测设计研究院 | Method for eliminating water hammer effect and double-valve-plate control valve used in method |
| CN103423501B (en) * | 2013-09-17 | 2014-12-10 | 南通宏大机电制造有限公司 | Gas safety valve |
| CN107720305A (en) * | 2017-10-16 | 2018-02-23 | 无锡锡东能源科技有限公司 | Plate-turning door |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5536689A (en) * | 1978-09-08 | 1980-03-14 | Kubota Ltd | Check valve |
| JPS5655763A (en) * | 1979-10-13 | 1981-05-16 | Yutaka Yamada | Check valve equipped with auxiliary valve |
| US4286621A (en) * | 1979-12-17 | 1981-09-01 | Geosource Inc. | Dual acting check valve dampener |
| CN2154936Y (en) * | 1992-05-15 | 1994-02-02 | 辽宁省铁岭阀门厂 | Buffer check valve with double butterfly plate |
| CN1082680A (en) * | 1992-05-16 | 1994-02-23 | 杨玉思 | Liquid (gas) hydraulic (pneumatic) slowly closing off-axial butterfly valve |
| JPH07332515A (en) * | 1994-06-09 | 1995-12-22 | Kubota Corp | Check valve with slow closing mechanism |
| CN2604586Y (en) * | 2003-03-13 | 2004-02-25 | 湖南泵阀制造有限公司 | Double-butterfly type opening & closing device for non-return valve |
-
2004
- 2004-08-19 CN CNB2004100466737A patent/CN100359230C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5536689A (en) * | 1978-09-08 | 1980-03-14 | Kubota Ltd | Check valve |
| JPS5655763A (en) * | 1979-10-13 | 1981-05-16 | Yutaka Yamada | Check valve equipped with auxiliary valve |
| US4286621A (en) * | 1979-12-17 | 1981-09-01 | Geosource Inc. | Dual acting check valve dampener |
| CN2154936Y (en) * | 1992-05-15 | 1994-02-02 | 辽宁省铁岭阀门厂 | Buffer check valve with double butterfly plate |
| CN1082680A (en) * | 1992-05-16 | 1994-02-23 | 杨玉思 | Liquid (gas) hydraulic (pneumatic) slowly closing off-axial butterfly valve |
| JPH07332515A (en) * | 1994-06-09 | 1995-12-22 | Kubota Corp | Check valve with slow closing mechanism |
| CN2604586Y (en) * | 2003-03-13 | 2004-02-25 | 湖南泵阀制造有限公司 | Double-butterfly type opening & closing device for non-return valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1598377A (en) | 2005-03-23 |
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Granted publication date: 20080102 Termination date: 20170819 |