CN104832662A - Butterfly valve with two actuators - Google Patents
Butterfly valve with two actuators Download PDFInfo
- Publication number
- CN104832662A CN104832662A CN201510252830.8A CN201510252830A CN104832662A CN 104832662 A CN104832662 A CN 104832662A CN 201510252830 A CN201510252830 A CN 201510252830A CN 104832662 A CN104832662 A CN 104832662A
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- China
- Prior art keywords
- valve
- controlling element
- final controlling
- fixedly connected
- rotating shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- 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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
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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
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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
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a butterfly valve with two actuators, and belongs to the technical field of valves. The butterfly valve with the two actuators comprises a main actuator, a valve body, supports and a valve plate, and further comprises an auxiliary actuator, valve plate shafts and rotary shafts. The two supports are symmetrically and fixedly connected to the outer side of the valve body. The valve plate shafts are hollow, and are in sliding fit connection with the rotary shafts to form a valve rod. The left part and the right part, outside the valve body, of the valve rod are fixedly connected with bearings in the two supports respectively. The left end of the valve rod is fixedly connected with the main actuator. The end, at the right end of the valve rod, of the corresponding rotary shaft penetrates out of the corresponding valve plate shaft to be fixedly connected with the auxiliary actuator (2). Through holes communicated with a front cavity and a rear cavity of the valve plate are formed in the position where the valve rod and the valve plate are fixedly connected in the valve body. The problem that an existing buttery valve cannot be opened when the pressure of the front cavity and the rear cavity is unbalanced under the working condition of high pressure is solved, operation is convenient, and the buttery valve is not prone to being damaged, and long in service life.
Description
Technical field
The invention belongs to valve technology field, particularly relate to the butterfly valve of a kind of pair of final controlling element.
Background technique
When existing butterfly valve is used for large diameter pipeline, special under the operating mode of high pressure, medium in pipeline produces immense pressure to butterfly plate, when butterfly plate is opened, because butterfly plate both sides exist pressure reduction, the moment of torsion that valve rod bears is very large, and the moment of torsion that supporting drive unit needs is large, make the huge structure of valve, cause valve opening inconvenience.
Be currently used in the butterfly valve of metallurgy, environmental protection industry (epi) use, owing to opening the little congenital defect of moment, when before and after valve, chamber pressure is uneven, valve plate can be crushed to death and not open.
Chinese patent application day: 201420169222.1, publication date: 2014.09.10, invention and created name is a kind of high-pressure balancing butterfly valve, comprise valve body, large butterfly plate is installed in valve body, large butterfly plate is provided with bearing, valve rod is fixedly mounted in bearing, large butterfly plate has through hole, in through hole, a little butterfly plate is installed, little butterfly plate is connected with valve rod by a driving mechanism, valve rod is provided with gear shaft part, driving mechanism comprises gear, lever, gear is meshed with the gear shaft part of valve rod, lever one end has U-shaped bayonet socket and hinged with gear, the other end and little butterfly plate hinged, gear and lever are arranged on gear support and lever support respectively, lever is divided into left arm and right arm by lever support, the length of left arm is less than the length of right arm.The beneficial effect of this model utility is: on large butterfly plate, arrange little butterfly plate, can the little butterfly plate of instantaneous unlatching while the large butterfly plate of unlatching, reaches the effect of transient equilibrium butterfly plate both sides pressure reduction, reduces moment of torsion during valve opening.But this model utility adds little butterfly plate and the little parts such as gear, lever, if fixing loosely, easily washed out under high pressure impulse force, be even mixed in medium, improve the operational risk of equipment.
Summary of the invention
1. invent the technical problem that will solve
Butterfly valve for butterfly valve unlatching inconvenience and existing improvement under the operating mode of the high pressure existed in prior art easily damages and improves the problem of operational risk, the invention provides the butterfly valve of a kind of pair of final controlling element.Instant invention overcomes existing butterfly valve under the operating mode of high pressure, a difficult problem of not opening when front and back cavity pressure is uneven, and easy to operate, be not easy to damage, long service life.
2. technological scheme
For achieving the above object, technological scheme provided by the invention is:
A butterfly valve for pair final controlling element, comprise main final controlling element, valve body, bearing and valve plate, also comprise secondary final controlling element, valve shaft and rotating shaft, wherein: bearing has 2, symmetry is fixedly connected on outside valve body; Valve shaft is hollow shape, and connects into valve rod with rotating shaft sliding type; Valve rod left and right two-part outside valve body, the bearing in respectively with 2 bearings is fixedly connected with; Valve rod left end head is fixedly connected with main final controlling element; At valve rod right-hand member, the rotating shaft end head of rotating shaft passes valve shaft and is fixedly connected with secondary final controlling element; In valve body, the part that valve rod is fixedly connected with valve plate is provided with the through hole being communicated with cavity before and after valve plate.
Preferably, valve rod left end head pass left side bearing be fixedly connected with main final controlling element; Rotating shaft end head is fixedly connected with secondary final controlling element after passing valve shaft and right side bearing; The horizontal radial line that through hole prolongs valve shaft and rotating shaft passes.
Preferably, main final controlling element and secondary final controlling element are electronic or pneumatic actuator.
Preferably, valve plate is divided into two-part of upper and lower symmetry, and is fixedly connected with the upper and lower surface tight type of the valve rod of valve body interior respectively.
Preferably, before and after valve plate, the upper and lower two-part on two sides and the fixed connection place of valve rod, be vertically installed with stiffening rib up and down, and stiffening rib and through hole stagger setting.
Preferably, stiffening rib has 3, and valve plate is evenly arranged, and increase arrange and the vertical radial line of valve plate be " in " the square frame-shaped stiffening rib of character form structure.
Preferably, rotating shaft is solid spindle; Number of openings is 4.
Preferably, rotating shaft end head and secondary final controlling element fixed connection place form toroidal cavity, are fixedly installed the limiting stopper vertical with through hole antarafacial and in toroidal cavity and the restraining groove that is equipped with of limiting stopper in toroidal cavity, on rotating shaft end head.
Preferably, limiting stopper has 2, is symmetrical arranged up and down, corresponding restraining groove also has 2.
3. beneficial effect
Adopt technological scheme provided by the invention, compared with prior art, there is following beneficial effect:
(1) butterfly valve of a kind of pair of final controlling element of the present invention, on valve rod, the setting of through hole is connected with the sliding type of valve shaft, rotating shaft, rotating shaft rotates to it switch realizing through hole by secondary final controlling element, after through hole is opened, the pressure difference of valve plate both sides cavity reduces, restart main final controlling element and open butterfly valve by valve shaft, achieve the object of opening the little butterfly valve also can opened under high pressure operating mode of moment;
(2) butterfly valve of a kind of pair of final controlling element of the present invention, bearing and main final controlling element and secondary final controlling element all leave gap, prevent bearing from affecting the transmission to valve shaft and rotating shaft of main final controlling element and secondary final controlling element; The horizontal radial line that through hole prolongs valve shaft and rotating shaft passes, and that improves through hole subtracts poor efficiency;
(3) butterfly valve of a kind of pair of final controlling element of the present invention, electric actuator efficiency is high, and pneumatic actuator cost is low, and present situation is selected according to demand;
(4) butterfly valve of a kind of pair of final controlling element of the present invention, valve plate is divided into 2 parts, and centre arranges valve rod being closely fixedly connected with, and is conducive to valve plate and valve rod is produced flexibly and assembles, and reduces the manufacture cost of valve;
(5) butterfly valve of a kind of pair of final controlling element of the present invention, the setting of stiffening rib, improves the fixed effect of valve plate and valve rod;
(6) butterfly valve of a kind of pair of final controlling element of the present invention, stiffening rib has the setting of 3 and square frame-shaped stiffening rib, improves the fixed effect of valve plate and valve rod further;
(7) butterfly valve of a kind of pair of final controlling element of the present invention, rotating shaft is solid spindle, sturdy and durable, improves working life, and improves the effect of easing stress of through hole; Number of openings is 4, improves decompression efficiency;
(8) butterfly valve of a kind of pair of final controlling element of the present invention, the setting of limiting stopper and restraining groove, improves the validity that secondary final controlling element countershaft rotates;
(9) butterfly valve of a kind of pair of final controlling element of the present invention, the setting of limiting stopper and restraining groove 2, improves the Efficiency and accuracy that secondary final controlling element countershaft rotates;
(10) butterfly valve of a kind of pair of final controlling element of the present invention, structure is ingenious, is suitable for opening the little butterfly valve of moment in metallurgy or environment friendly system.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is structural representation after toroidal cavity of the present invention amplifies.
Label declaration in schematic diagram: 1, main final controlling element; 2, secondary final controlling element; 3, valve body; 4, bearing; 5, valve plate; 6, valve shaft; 7, rotating shaft; 8, valve rod; 9, through hole; 11, toroidal cavity; 13, stiffening rib; 15, square frame-shaped stiffening rib; 41, bearing; 71, rotating shaft end head; 72, limiting stopper; 111, restraining groove.
Embodiment
For understanding content of the present invention further, the present invention is described in detail by reference to the accompanying drawings.
Embodiment 1
As shown in Figure 1, the butterfly valve of a kind of pair of final controlling element, be applied to waste gas medium conveying in the duct in environmental protection industry (epi), waste gas medium pressure is 3 barometric pressure, and pipe diameter is 100mm, comprise the valve plate 5 that main final controlling element 1, valve body 3, bearing 4 and diameter are 100mm, also comprise secondary final controlling element 2, valve shaft 6 and rotating shaft 7, in the present embodiment, main final controlling element 1 is electric actuator, and secondary final controlling element 2 is pneumatic actuator, wherein: bearing 4 has 2, symmetry is fixedly connected on outside valve body 3; Valve shaft 6 is in hollow shape, and internal diameter is 7mm, and is the valve rod 8 that 6.9mm rotating shaft 7 sliding type connects into that external diameter is 8mm with external diameter; Valve rod 8 left and right two-part outside valve body 3, the bearing 41 in respectively with 2 bearings 4 is fixedly connected with, and the rotation being convenient to valve rod carrys out switch valve; Valve rod 8 left end head is fixedly connected with main final controlling element 1; At valve rod 8 right-hand member, the rotating shaft end head 71 of rotating shaft 7 passes valve shaft 6 and is fixedly connected with secondary final controlling element 2; In valve body 3, the part that valve rod 8 is fixedly connected with valve plate 5 is provided with the through hole 9 being communicated with cavity before and after valve plate 5, and through-hole diameter is 5mm.
The butterfly valve of two final controlling element of the present embodiment, during concrete use, be arranged on exhaust piping that diameter is 100mm, when needs open butterfly valve main body 3 need to supply gas time, first by secondary pneumatic actuator rotating shaft 7, open through hole 9, the exhaust gas pressure difference of valve plate 5 both sides cavity reduces, restart main electric actuator and open butterfly valve plate 5 by valve shaft 6, realize ventilating completely; When butterfly valve main body 3 closed by needs, start main electric actuator and close butterfly valve plate 5 by valve shaft 6, because now through hole 9 is in open mode, when main electric actuator closes butterfly valve plate 5, even if it is little to open moment, due to valve plate 5 two ends waste gas pressure balance, as long as main electric actuator overcomes the surface friction drag of valve plate 5, can realize closing butterfly valve plate 5, and then close through hole 9 by secondary pneumatic actuator rotating shaft 7, a use circulation of the butterfly valve of two final controlling element of the present embodiment terminates.
Embodiment 2
The butterfly valve of two final controlling element of the present embodiment, its basic structure is with embodiment 1, and improvements are: valve rod 8 left end head passes left side bearing 4 and is fixedly connected with main final controlling element 1; After rotating shaft end head 71 passes valve shaft 6 and right side bearing 4, be fixedly connected with secondary final controlling element 2; The horizontal radial line that through hole 9 prolongs valve shaft 6 and rotating shaft 7 passes; Main final controlling element 1 and secondary final controlling element 2 are electric actuator.Valve plate 5 is divided into two-part of upper and lower symmetry, and is fixedly connected with the upper and lower surface tight type of valve rod 8 respectively; The fixed connection place of the upper and lower two-part in two sides and valve rod 8 before and after valve plate 5, is vertically installed with 3 stiffening ribs 13 up and down, and stiffening rib 13 and through hole 9 stagger setting, and increase arrange and the vertical radial line of valve plate 5 be " in " the square frame-shaped stiffening rib 15 of character form structure; Rotating shaft 7 is solid spindle; Through hole 9 quantity is 4; As shown in Figure 2, rotating shaft end head 71 and secondary final controlling element 2 fixed connection place form toroidal cavity 11, the limiting stopper 72 vertical with through hole 9 antarafacial is fixedly installed and in toroidal cavity 11 and the restraining groove 111 that is equipped with of limiting stopper 72 in toroidal cavity 11, on rotating shaft end head 71, limiting stopper 72 has 2, is symmetrical arranged up and down, corresponding restraining groove 111 also has 2.
The butterfly valve of two final controlling element of the present embodiment, concrete using method is with embodiment 1, but valve plate 5 is divided into 2 parts, and centre arranges valve rod 8 and is closely fixedly connected with, and is conducive to valve plate 5 and valve rod 8 production and assembling flexibly, reduces the manufacture cost of valve; Stiffening rib 13 has the setting of 3 and square frame-shaped stiffening rib 15, improves the fixed effect of valve plate 5 and valve rod 8 further; Rotating shaft 7 is solid spindle, sturdy and durable, improves working life, and improves the effect of easing stress of through hole 9; Through hole 9 quantity is 4, improves decompression efficiency; The setting of 2 limiting stoppers 72 and restraining groove 111, improves the Efficiency and accuracy that secondary final controlling element 2 countershaft rotates.
Embodiment 3
The butterfly valve of two final controlling element of the present embodiment, its basic structure is with embodiment 2, and improvements are: valve rod 8 and main final controlling element 1 fixed connection place also form toroidal cavity 11, and relative set limiting stopper 72 and restraining groove 111.
The butterfly valve of two final controlling element of the present embodiment, improves the Efficiency and accuracy that main final controlling element 1 pair of valve rod 8 rotates.
Schematically above be described the present invention and mode of execution thereof, this description does not have restricted, and also just one of the embodiments of the present invention shown in accompanying drawing, actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the invention aim, designing the mode of structure similar to this technological scheme and embodiment without creationary, all should protection scope of the present invention be belonged to.
Claims (9)
1. the butterfly valve of a two final controlling element, comprise main final controlling element (1), valve body (3), bearing (4) and valve plate (5), it is characterized in that: also comprise secondary final controlling element (2), valve shaft (6) and rotating shaft (7), wherein:
Described bearing (4) has 2, and symmetry is fixedly connected on valve body (3) outside;
Described valve shaft (6) in hollow shape, and connects into valve rod (8) with rotating shaft (7) sliding type; Described valve rod (8) is at valve body (3) left and right two-part outward, and the bearing (41) in respectively with 2 bearings (4) is fixedly connected with; Valve rod (8) left end head is fixedly connected with main final controlling element (1); At valve rod (8) right-hand member, the rotating shaft end head (71) of rotating shaft (7) passes valve shaft (6) and is fixedly connected with secondary final controlling element (2);
In described valve body (3), the part that valve rod (8) is fixedly connected with valve plate (5) is provided with the through hole (9) being communicated with cavity before and after valve plate (5).
2. the butterfly valve of according to claim 1 pair of final controlling element, is characterized in that: described valve rod (8) left end head passes left side bearing (4) and is fixedly connected with main final controlling element (1); Rotating shaft end head (71) is fixedly connected with secondary final controlling element (2) after passing valve shaft (6) and right side bearing (4); The horizontal radial line that described through hole (9) prolongs valve shaft (6) and rotating shaft (7) passes.
3. the butterfly valve of according to claim 1 and 2 pair of final controlling element, is characterized in that: described main final controlling element (1) and secondary final controlling element (2) are electronic or pneumatic actuator.
4. the butterfly valve of according to claim 1 and 2 pair of final controlling element, it is characterized in that: described valve plate (5) is divided into two-part of upper and lower symmetry, and the upper and lower surface tight type of valve rod (8) inner with valve body (3) is respectively fixedly connected with.
5. the butterfly valve of according to claim 4 pair of final controlling element, it is characterized in that: the fixed connection place of the upper and lower two-part in two sides and valve rod (8) before and after described valve plate (5), be vertically installed with stiffening rib (13) up and down, stiffening rib (13) and through hole (9) stagger setting.
6. the butterfly valve of according to claim 5 pair of final controlling element, it is characterized in that: described stiffening rib (13) has 3, evenly arrange valve plate (5) is upper, and increase arrange and the vertical radial line of valve plate (5) be " in " the square frame-shaped stiffening rib (15) of character form structure.
7. the butterfly valve of according to claim 5 pair of final controlling element, is characterized in that: described rotating shaft (7) is solid spindle; Described through hole (9) quantity is 4.
8. the butterfly valve of according to claim 7 pair of final controlling element, it is characterized in that: described rotating shaft end head (71) and secondary final controlling element (2) fixed connection place form toroidal cavity (11), in toroidal cavity (11), on rotating shaft end head (71), be fixedly installed the limiting stopper (72) vertical with through hole (9) antarafacial and in toroidal cavity (11) and the restraining groove (111) that is equipped with of limiting stopper (72).
9. the butterfly valve of according to claim 7 pair of final controlling element, is characterized in that: described limiting stopper (72) has 2, is symmetrical arranged up and down, corresponding restraining groove (111) also has 2.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510252830.8A CN104832662B (en) | 2015-05-18 | 2015-05-18 | Butterfly valve with two actuators |
| CN201710277639.8A CN106958664B (en) | 2015-05-18 | 2015-05-18 | A kind of operating method of the butterfly valve of double actuators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510252830.8A CN104832662B (en) | 2015-05-18 | 2015-05-18 | Butterfly valve with two actuators |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710277639.8A Division CN106958664B (en) | 2015-05-18 | 2015-05-18 | A kind of operating method of the butterfly valve of double actuators |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104832662A true CN104832662A (en) | 2015-08-12 |
| CN104832662B CN104832662B (en) | 2017-05-17 |
Family
ID=53810749
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510252830.8A Active CN104832662B (en) | 2015-05-18 | 2015-05-18 | Butterfly valve with two actuators |
| CN201710277639.8A Active CN106958664B (en) | 2015-05-18 | 2015-05-18 | A kind of operating method of the butterfly valve of double actuators |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710277639.8A Active CN106958664B (en) | 2015-05-18 | 2015-05-18 | A kind of operating method of the butterfly valve of double actuators |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN104832662B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386553A (en) * | 2018-05-21 | 2018-08-10 | 南通升辉机械有限公司 | A kind of novel manual butterfly valve |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3030069A (en) * | 1961-02-03 | 1962-04-17 | Firewel Company Inc | High pressure butterfly valve |
| CN1699801A (en) * | 2004-12-23 | 2005-11-23 | 潘世永 | Double seal valve |
| CN101063490A (en) * | 2007-06-04 | 2007-10-31 | 占春龙 | Guiding high pressure butterfly valve |
| CN201963907U (en) * | 2011-03-30 | 2011-09-07 | 浙江正洲泵阀制造有限公司 | Double-shaft double-plate butterfly valve |
| CN202561069U (en) * | 2012-04-25 | 2012-11-28 | 安徽省繁昌县皖南阀门铸造有限公司 | Self pressure-relieving type double valve plate soft seal butterfly valve |
| CN203477352U (en) * | 2013-10-11 | 2014-03-12 | 石家庄阀门一厂股份有限公司 | Butterfly bamper opened and closed in high-pressure-difference mode |
| CN103807452A (en) * | 2014-02-27 | 2014-05-21 | 张周卫 | LNG butterfly valve |
| CN204628587U (en) * | 2015-05-18 | 2015-09-09 | 权岚 | The butterfly valve of a kind of pair of final controlling element |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4482128A (en) * | 1983-03-11 | 1984-11-13 | Dover Corporation | High pressure cam seal valve |
| CN2299967Y (en) * | 1997-04-10 | 1998-12-09 | 江冠中 | Flexible sealed eccentric butterfly valve |
| JPH11153232A (en) * | 1997-11-21 | 1999-06-08 | Toshiba Eng Co Ltd | Butterfly valve device |
-
2015
- 2015-05-18 CN CN201510252830.8A patent/CN104832662B/en active Active
- 2015-05-18 CN CN201710277639.8A patent/CN106958664B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3030069A (en) * | 1961-02-03 | 1962-04-17 | Firewel Company Inc | High pressure butterfly valve |
| CN1699801A (en) * | 2004-12-23 | 2005-11-23 | 潘世永 | Double seal valve |
| CN101063490A (en) * | 2007-06-04 | 2007-10-31 | 占春龙 | Guiding high pressure butterfly valve |
| CN201963907U (en) * | 2011-03-30 | 2011-09-07 | 浙江正洲泵阀制造有限公司 | Double-shaft double-plate butterfly valve |
| CN202561069U (en) * | 2012-04-25 | 2012-11-28 | 安徽省繁昌县皖南阀门铸造有限公司 | Self pressure-relieving type double valve plate soft seal butterfly valve |
| CN203477352U (en) * | 2013-10-11 | 2014-03-12 | 石家庄阀门一厂股份有限公司 | Butterfly bamper opened and closed in high-pressure-difference mode |
| CN103807452A (en) * | 2014-02-27 | 2014-05-21 | 张周卫 | LNG butterfly valve |
| CN204628587U (en) * | 2015-05-18 | 2015-09-09 | 权岚 | The butterfly valve of a kind of pair of final controlling element |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386553A (en) * | 2018-05-21 | 2018-08-10 | 南通升辉机械有限公司 | A kind of novel manual butterfly valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106958664B (en) | 2018-11-06 |
| CN106958664A (en) | 2017-07-18 |
| CN104832662B (en) | 2017-05-17 |
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Effective date of registration: 20200612 Address after: 055350 West Village, Longyao County, Hebei, Xingtai Patentee after: YUANDA VAVLE GROUP Co.,Ltd. Address before: 243000 Anhui city of Ma'anshan Province Yu Shan Economic Development Zone 3-1 Co-patentee before: MA'ANSHAN HUAYU ENVIRONMENTAL PROTECTION EQUIPMENT MANUFACTURING Co.,Ltd. Patentee before: Quan Lan |