CN108843798A - A kind of superhigh temperature butterfly valve - Google Patents
A kind of superhigh temperature butterfly valve Download PDFInfo
- Publication number
- CN108843798A CN108843798A CN201810686180.1A CN201810686180A CN108843798A CN 108843798 A CN108843798 A CN 108843798A CN 201810686180 A CN201810686180 A CN 201810686180A CN 108843798 A CN108843798 A CN 108843798A
- Authority
- CN
- China
- Prior art keywords
- valve
- butterfly plate
- cooling water
- butterfly
- valve rod
- 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
-
- 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
- F16K1/226—Shaping or arrangements of the sealing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—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
- F16K49/00—Means in or on valves for heating or cooling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
A kind of superhigh temperature butterfly valve, by on the inner flow passage of valve body and being respectively provided with Wear-resistant heat insulation lining on the outer surface of butterfly plate, cooperate the valve seals being obliquely installed, the co-planar of butterfly plate and the valve seals being obliquely installed when turning off butterfly valve, abrasion Wear-resistant heat insulation lining will not be caused in long-term opening-closing process, cooperate the valve body cooling water flow conduits being arranged in valve body and the butterfly plate water-cooled body by valve rod inflow and outflow, it realizes to the water-cooled cooling in valve inner and butterfly plate, it is stuck due to high-temperature expansion that valve inner after cooling is not easy to valve plate, protect product, increase the durability of product.
Description
Technical field
Present invention relates particularly to high temperature valve technical fields, and in particular to a kind of superhigh temperature butterfly valve.
Background technique
Flow regulating butterfly valve is commonly called as flue gas by-passing valve, flue gas stop valve etc., in metallurgy, steel, petrochemical industry, electric power, ring
The industries such as guarantor, hot blast stove system are used widely.Its sealing performance has national standard, for example, slip needs meet
National standard, the medium being applicable in are hot-air, flue gas；It is less than or equal to 450 °C using temperature.The structure letter of flow regulating butterfly valve
Single, small in size, light weight, operation are convenient, and have good flow regulating function, are the main execution in pipe-work system
Element.But existing flow regulating butterfly valve can not be applied to hot environment.Existing flow regulating butterfly valve makes under high temperature environment
Used time and valve inner are easy and valve plate is stuck by high-temperature expansion, eventually causes damage of product and frequently replacement.
Existing high temperature butterfly valve is in order to solve above-mentioned technological deficiency, often through outer with butterfly plate on the inner flow passage of valve body
The Wear-resistant heat insulation lining that Wear-resistant heat insulation lining is arranged on surface, but is arranged on the inner flow passage of the valve body and outer surface of butterfly plate holds
It easily causes to wear in the long-term opening-closing process of butterfly valve, influences the sealing performance of butterfly valve.
Summary of the invention
It is in order to solve the defects of prior art and insufficient.The present invention provides a kind of superhigh temperature butterfly valves.
The technical solution that the present invention uses is：A kind of superhigh temperature butterfly valve, including valve body, the valve body is interior to be equipped with valve
Bar, is additionally provided with butterfly plate on the valve rod, and the valve rod upper end is also connected with operating mechanism, on the inner flow passage of the valve body
With Wear-resistant heat insulation lining is equipped on the outer surface of butterfly plate, valve seals, institute are additionally provided in the runner inner wall of the valve body
The valve seals stated be U-shaped hollow structure, the valve seals be higher than valve flowing channel in Wear-resistant heat insulation lining face and
It is obliquely installed, the butterfly plate and valve seals sealing cooperate, and incline when the butterfly plate seals cooperation with valve seals
Loxosis is set, the sealing station and and valve seal of the co-planars of valve seals that the butterfly plate includes and is obliquely installed
The staggered open position of the plane of circle.
Butterfly plate water-cooled body is additionally provided in the superhigh temperature butterfly valve, the butterfly plate water-cooled body is by butterfly plate
The butterfly plate cooling water inlet and butterfly plate cooling water outlet at butterfly plate cooling water flow conduits and valve rod both ends composition.
The valve rod includes upper valve rod and lower valve rod, and the butterfly plate cooling water inlet is located at the top of upper valve rod, institute
The butterfly plate cooling water outlet stated is located at the bottom of lower valve rod.
The upper valve rod is interior equipped with the valve rod being connected to butterfly plate cooling water inlet and butterfly plate cooling water outlet with lower valve rod
Cooling water flow conduits, the valve rod cooling water flow conduits are connected to the butterfly plate cooling water flow conduits in butterfly plate.
The butterfly plate cooling water flow conduits include the inner flow passage of butterfly plate inner ring arc and positioned at the outer of inner flow passage outer arcuate
Drain flow path between runner and inner flow passage and outer flow passage, the drain flow path are divided into drain flow path and lower drainage stream
Inlet and outlet, the inlet and outlet are respectively equipped on road, the upper drain flow path and lower drain flow path
Respectively correspond with upper valve rod in lower valve rod butterfly plate cooling water inlet and butterfly plate cooling water outlet be connected to.
The outermost end of the outer flow passage is additionally provided with butterfly plate sealing ring, and the butterfly plate sealing ring protrudes from the outermost of butterfly plate
Side, the butterfly plate sealing ring and valve seals sealing cooperate.
The junction of the valve rod and butterfly plate is equipped with valve rod link block, and the junction of the butterfly plate and valve rod is additionally provided with
Butterfly plate link block, the butterfly plate are fixedly connected with valve rod by valve rod link block and butterfly plate link block, the valve rod connection
Link block runner, the link block runner and valve rod cooling water flow conduits and butterfly plate cooling water are equipped in block and butterfly plate link block
Runner connection.
It is all provided on the junction of the valve rod link block and valve rod and butterfly plate link block and the junction of valve rod link block
There is winding gasket seal.
It is connected between the valve rod link block and valve rod by flat key and the first screw, butterfly plate link block is connect with valve rod
Pass through the second screw and positioning pin connection between block.
Be additionally provided with valve body cooling water flow conduits in the valve interior wall, the valve body be equipped with valve body cooling water inlet with
Valve body cooling water outlet, the valve body cooling water inlet and valve body cooling water outlet are connected to valve body cooling water flow conduits, described
Valve body cooling water inlet and valve body cooling water outlet and valve body cooling water flow conduits between formed valve body water-cooled body.
The beneficial effects of the invention are as follows：The present invention provides a kind of superhigh temperature butterfly valve, by the inner flow passage of valve body and
It is respectively provided with Wear-resistant heat insulation lining on the outer surface of butterfly plate, cooperates the valve seals being obliquely installed, butterfly plate when turning off butterfly valve
With the co-planar for the valve seals being obliquely installed, abrasion Wear-resistant heat insulation lining will not be caused in long-term opening-closing process, is matched
The valve body cooling water flow conduits being arranged in valve body and the butterfly plate water-cooled body by valve rod inflow and outflow are closed, is realized to valve body
Water-cooled cooling in internal and butterfly plate, it is stuck due to high-temperature expansion that the valve inner after cooling is not easy to valve plate, protects production
Product increase the durability of product.
Detailed description of the invention
Fig. 1 is B--B cross-section profile structural schematic diagram of the present invention.
Fig. 2 is schematic structural view of the invention.
Fig. 3 is butterfly plate structural schematic diagram of the present invention.
Fig. 4 is schematic enlarged-scale view at I of the present invention.
Fig. 5 is schematic enlarged-scale view at II of the present invention.
1- valve body in figure, 2- valve rod, 3- operating mechanism, 4- Wear-resistant heat insulation lining, 5- butterfly plate cooling water flow conduits, 6- winding are close
Gasket, 7- flat key, the first screw of 8-, the second screw of 9-, 10- positioning pin, 11- valve seals, 12- valve body cooling water into
Mouthful, 13- valve body cooling water outlet, 21- upper valve rod, 22- lower valve rod, 23- valve rod cooling water flow conduits, 24- valve rod link block, 51-
Butterfly plate cooling water inlet, 52- butterfly plate cooling water outlet, 53- inner flow passage, 54- outer flow passage, 55- drain flow path, 56- water inlet,
57- water outlet, 58- butterfly plate sealing ring, 59- butterfly plate link block.
Specific embodiment
In order to be more clearly understood that technology contents of the invention, spy lifts following embodiment and is described in detail.
As shown in figure 1, figure 2, figure 3, figure 4 and figure 5, a kind of superhigh temperature butterfly valve, including valve body 1 are equipped in the valve body 1
Valve rod 2 is additionally provided with butterfly plate on the valve rod 2, and 2 upper end of valve rod is also connected with operating mechanism 3, the valve body 1
On runner and it is equipped with Wear-resistant heat insulation lining 4 on the outer surface of butterfly plate, is additionally provided with valve body in the runner inner wall of the valve body 1
Sealing ring 11, the valve seals 11 are U-shaped hollow structure, and the valve seals 11 are higher than in 1 runner of valve body
It 4 face of Wear-resistant heat insulation lining and is obliquely installed, the butterfly plate and the sealing of valve seals 11 cooperate, and the butterfly plate and valve body are close
It is obliquity, the co-planar of valve seals 11 that the butterfly plate includes and is obliquely installed when the sealing cooperation of seal 11
Sealing station and open position staggered with the plane of valve seals 11.The present invention is by the inner flow passage of valve body and butterfly
Be respectively provided with Wear-resistant heat insulation lining on the outer surface of plate, cooperate the valve seals being obliquely installed, when turning off butterfly valve butterfly plate with
The co-planar for the valve seals being obliquely installed will not cause abrasion Wear-resistant heat insulation lining in long-term opening-closing process.
Butterfly plate water-cooled body is additionally provided in the superhigh temperature butterfly valve, the butterfly plate water-cooled body is by butterfly plate
The butterfly plate cooling water inlet 51 and butterfly plate cooling water outlet 52 at 2 both ends of butterfly plate cooling water flow conduits 5 and valve rod form.The valve rod
2 include upper valve rod 21 and lower valve rod 22, and the butterfly plate cooling water inlet 51 is located at the top of upper valve rod 21, and the butterfly plate is cold
But water out 52 is located at the bottom of lower valve rod 22.It is equipped with and butterfly plate cooling water inlet 51 in the upper valve rod 21 and lower valve rod 22
Butterfly plate in the valve rod cooling water flow conduits 23 being connected to butterfly plate cooling water outlet 52, the valve rod cooling water flow conduits 23 and butterfly plate
Cooling water flow conduits 5 are connected to.The inner flow passage 53 of butterfly plate cooling water flow conduits 5 including butterfly plate inner ring arc and it is located at inner flow passage 53
Drain flow path 55 between the outer flow passage 54 and inner flow passage 53 and outer flow passage 54 of outer arcuate, the drain flow path 55, which divides, is
It is respectively equipped with water inlet 56 on upper drain flow path and lower drain flow path, the upper drain flow path 55 and lower drain flow path 55 and goes out
The mouth of a river 57, the water inlet 56 and water outlet 57 respectively correspond and the butterfly plate cooling water inlet in upper valve rod 21 and lower valve rod 22
51 are connected to butterfly plate cooling water outlet 52.The outermost end of the outer flow passage 54 is additionally provided with butterfly plate sealing ring 58, the butterfly plate
Sealing ring 58 protrudes from the outermost of butterfly plate, and the butterfly plate sealing ring 58 and the sealing of valve seals 11 cooperate.The valve
The junction of bar 2 and butterfly plate is equipped with valve rod link block 24, and the junction of the butterfly plate and valve rod 2 is additionally provided with butterfly plate link block
59, the butterfly plate is fixedly connected with valve rod 2 by valve rod link block 24 and butterfly plate link block 59, the valve rod link block 24
Be equipped with link block runner in butterfly plate link block 59, the link block runner and valve rod cooling water flow conduits 23 and butterfly plate are cooling
Water flow passage 5 is connected to.
The valve rod link block 24 and the junction of valve rod 2 and the junction of butterfly plate link block 59 and valve rod link block 24
On be equipped with winding gasket seal 6.
Connected between the valve rod link block 24 and valve rod 2 by flat key 7 and the first screw 8, butterfly plate link block 59 with
It is connected between valve rod link block 24 by the second screw 9 and positioning pin 10.
Valve body cooling water flow conduits are additionally provided in 1 inner wall of valve body, the valve body 1 is equipped with valve body cooling water inlet
12 with valve body cooling water outlet 13, the valve body cooling water inlet 12 and valve body cooling water outlet 13 and valve body cooling water flow conduits
Connection forms valve body water cooling between the valve body cooling water inlet 12 and valve body cooling water outlet 13 and valve body cooling water flow conduits
But mechanism.The present invention by abrasion Wear-resistant heat insulation lining cooperate valve body in be arranged valve body cooling water flow conduits and by valve rod into
The butterfly plate water-cooled body of water and water outlet realizes that the valve inner after cooling is not to the water-cooled cooling in valve inner and butterfly plate
It is stuck due to high-temperature expansion to be easy to valve plate, protects product, increases the durability of product.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply opposite
Importance.In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two
More than.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of superhigh temperature butterfly valve, including valve body（1）, the valve body（1）It is interior to be equipped with valve rod（2）, the valve rod（2）It is upper to go back
Equipped with butterfly plate, the valve rod（2）Upper end is also connected with operating mechanism（3）, which is characterized in that the valve body（1）Runner
Wear-resistant heat insulation lining is equipped on the upper and outer surface of butterfly plate（4）, the valve body（1）Runner inner wall on be additionally provided with valve body
Sealing ring（11）, the valve seals（11）For U-shaped hollow structure, the valve seals（11）Higher than valve body（1）
Wear-resistant heat insulation lining in runner（4）It face and is obliquely installed, the butterfly plate and valve seals（11）Sealing cooperation, it is described
Butterfly plate and valve seals（11）It is obliquity, the valve seals that the butterfly plate includes and is obliquely installed when sealing cooperation
（11）Co-planar sealing station and and valve seals（11）The staggered open position of plane.
2. a kind of superhigh temperature butterfly valve according to claim 1, which is characterized in that be additionally provided with butterfly in the superhigh temperature butterfly valve
Plate water-cooled body, the butterfly plate water-cooled body is by the butterfly plate cooling water flow conduits in butterfly plate（5）And valve rod（2）The butterfly at both ends
Plate cooling water inlet（51）With butterfly plate cooling water outlet（52）Composition.
3. a kind of superhigh temperature butterfly valve according to claim 2, which is characterized in that the valve rod（2）Including upper valve rod
（21）With lower valve rod（22）, the butterfly plate cooling water inlet（51）Positioned at upper valve rod（21）Top, the butterfly plate is cooling
Water out（52）Positioned at lower valve rod（22）Bottom.
4. a kind of superhigh temperature butterfly valve according to claim 3, which is characterized in that the upper valve rod（21）With lower valve rod
（22）It is interior to be equipped with and butterfly plate cooling water inlet（51）With butterfly plate cooling water outlet（52）The valve rod cooling water flow conduits of connection（23）, institute
The valve rod cooling water flow conduits stated（23）With the butterfly plate cooling water flow conduits in butterfly plate（5）Connection.
5. a kind of superhigh temperature butterfly valve according to claim 2, which is characterized in that the butterfly plate cooling water flow conduits（5）Packet
Include the inner flow passage of butterfly plate inner ring arc（53）Be located at inner flow passage（53）The outer flow passage of outer arcuate（54）And inner flow passage（53）
And outer flow passage（54）Between drain flow path（55）, the drain flow path（55）It is divided into drain flow path and lower drain flow path,
The upper drain flow path（55）With lower drain flow path（55）On be respectively equipped with water inlet（56）And water outlet（57）, it is described into
The mouth of a river（56）And water outlet（57）It respectively corresponds and upper valve rod（21）With lower valve rod（22）Interior butterfly plate cooling water inlet（51）With
Butterfly plate cooling water outlet（52）Connection.
6. a kind of superhigh temperature butterfly valve according to claim 5, which is characterized in that the outer flow passage（54）Outermost end also
Equipped with butterfly plate sealing ring（58）, the butterfly plate sealing ring（58）Protrude from the outermost of butterfly plate, the butterfly plate sealing ring
（58）With valve seals（11）Sealing cooperation.
7. a kind of superhigh temperature butterfly valve according to claim 2, which is characterized in that the valve rod（2）With the connection of butterfly plate
Place is equipped with valve rod link block（24）, the butterfly plate and valve rod（2）Junction be additionally provided with butterfly plate link block（59）, the butterfly
Plate and valve rod（2）Pass through valve rod link block（24）With butterfly plate link block（59）It is fixedly connected, the valve rod link block（24）With
Butterfly plate link block（59）Inside it is equipped with link block runner, the link block runner and valve rod cooling water flow conduits（23）It is cold with butterfly plate
But water flow passage（5）Connection.
8. a kind of superhigh temperature butterfly valve according to claim 7, which is characterized in that the valve rod link block（24）With valve rod
（2）Junction and butterfly plate link block（59）With valve rod link block（24）Junction on be equipped with winding gasket seal（6）.
9. a kind of superhigh temperature butterfly valve according to claim 7, which is characterized in that the valve rod link block（24）With valve rod
（2）Between pass through flat key（7）With the first screw（8）Connection, butterfly plate link block（59）With valve rod link block（24）Between pass through the
Two screws（9）And positioning pin（10）Connection.
10. a kind of superhigh temperature butterfly valve according to claim 1, which is characterized in that the valve body（1）It is additionally provided in inner wall
Valve body cooling water flow conduits, the valve body（1）It is equipped with valve body cooling water inlet（12）With valve body cooling water outlet（13）, described
Valve body cooling water inlet（12）With valve body cooling water outlet（13）It is connected to valve body cooling water flow conduits, the valve body cooling water
Import（12）With valve body cooling water outlet（13）Valve body water-cooled body is formed between valve body cooling water flow conduits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810686180.1A CN108843798B (en) | 2018-06-28 | 2018-06-28 | A kind of superhigh temperature butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810686180.1A CN108843798B (en) | 2018-06-28 | 2018-06-28 | A kind of superhigh temperature butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108843798A true CN108843798A (en) | 2018-11-20 |
| CN108843798B CN108843798B (en) | 2019-09-13 |
Family
ID=64200613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810686180.1A Active CN108843798B (en) | 2018-06-28 | 2018-06-28 | A kind of superhigh temperature butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108843798B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114263751A (en) * | 2021-12-11 | 2022-04-01 | 李岸隆 | Scour prevention butterfly valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB843845A (en) * | 1957-10-24 | 1960-08-10 | David F Wiseman & Sons Ltd | Improvements relating to butterfly valves |
| CN2307960Y (en) * | 1997-07-28 | 1999-02-17 | 成都阀门厂 | Three-eccentric butterfly valve |
| US6010114A (en) * | 1997-01-03 | 2000-01-04 | Fab-Tech Inc. | Damper system with internal sealing channels and method of assembly |
| CN203717961U (en) * | 2013-12-25 | 2014-07-16 | 秦皇岛中青冶金阀门有限公司 | Novel water-cooled high-temperature regulation butterfly valve |
| CN206786027U (en) * | 2017-05-25 | 2017-12-22 | 五洲阀门股份有限公司 | A kind of high temperature butterfly valve door |
-
2018
- 2018-06-28 CN CN201810686180.1A patent/CN108843798B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB843845A (en) * | 1957-10-24 | 1960-08-10 | David F Wiseman & Sons Ltd | Improvements relating to butterfly valves |
| US6010114A (en) * | 1997-01-03 | 2000-01-04 | Fab-Tech Inc. | Damper system with internal sealing channels and method of assembly |
| CN2307960Y (en) * | 1997-07-28 | 1999-02-17 | 成都阀门厂 | Three-eccentric butterfly valve |
| CN203717961U (en) * | 2013-12-25 | 2014-07-16 | 秦皇岛中青冶金阀门有限公司 | Novel water-cooled high-temperature regulation butterfly valve |
| CN206786027U (en) * | 2017-05-25 | 2017-12-22 | 五洲阀门股份有限公司 | A kind of high temperature butterfly valve door |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114263751A (en) * | 2021-12-11 | 2022-04-01 | 李岸隆 | Scour prevention butterfly valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108843798B (en) | 2019-09-13 |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Huaimin Inventor after: Xiang Guangwu Inventor after: Xue Hongquan Inventor after: Xiang Yongan Inventor after: Nan Fei Inventor after: Xiang Lisheng Inventor after: Xiang Wei Inventor before: Xiang Wei Inventor before: Xiang Guangwu Inventor before: Wu Huaimin Inventor before: Xue Hongquan Inventor before: Xiang Yongan Inventor before: Nan Fei Inventor before: Xiang Lisheng |
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Denomination of invention: Ultra high temperature butterfly valve Effective date of registration: 20211119 Granted publication date: 20190913 Pledgee: China Minsheng Banking Corp Wenzhou branch Pledgor: ZHEJIANG PETROCHEMICAL VALVE Co.,Ltd. Registration number: Y2021980012702 |