CN113719619A - Nitrogen-filled sealing butterfly valve - Google Patents
Nitrogen-filled sealing butterfly valve Download PDFInfo
- Publication number
- CN113719619A CN113719619A CN202111149134.6A CN202111149134A CN113719619A CN 113719619 A CN113719619 A CN 113719619A CN 202111149134 A CN202111149134 A CN 202111149134A CN 113719619 A CN113719619 A CN 113719619A
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing
- sealing washer
- nitrogen
- disk seat
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 69
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 18
- 239000007789 gas Substances 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims 1
- 238000000926 separation method Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- F16K1/16—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
- F16K1/221—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 specially adapted operating means therefor
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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
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
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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
- F16K1/42—Valve seats
-
- 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)
Abstract
The utility model provides a fill nitrogen sealing butterfly valve, includes valve body, disk seat, valve plate, valve shaft, swing arm, drive arrangement, and the valve body is equipped with sealed chamber, leads to air inlet, gas outlet on the sealed chamber, is equipped with the gas pocket on the disk seat, and the gas pocket communicates with each other with sealed chamber, is equipped with sealing washer I and sealing washer II on the valve plate, and when sealing washer I and II butts of sealing washer were on the disk seat, the gas pocket on the disk seat was located the centre of sealing washer I and sealing washer II. The double-channel sealing valve has the advantages that double-channel sealing of a single valve plate is realized, the weight of the valve is reduced, and when leakage occurs in the sealing ring I and the sealing ring II, media on two sides of the valve body are effectively separated by filling nitrogen.
Description
Technical Field
The invention relates to a butterfly valve, in particular to a nitrogen-filled sealing butterfly valve.
Background
Butterfly valves are commonly used for media such as air, flue gas, water, etc., and have regulating and cutting-off functions on pipelines. The butterfly valve is most commonly a single-plate single-channel sealing ring, has a simple structure and low manufacturing cost, but once the sealing ring fails, the valve fails, and the reliability is not high. Adopt the structure of double plate and double sealing ring after the improvement, though many sealing reliability, the valve weight is heavy, with high costs, and it is also inconvenient to maintain.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a nitrogen-filled sealing butterfly valve.
The technical scheme includes that the nitrogen-filled sealing butterfly valve comprises a valve body, a valve seat, a valve plate, a valve shaft, a swing arm and a driving device, the valve plate is connected with the valve shaft through a pin shaft, the driving device drives the valve plate to rotate through the swing arm and the valve shaft, the valve body is provided with a sealing cavity, an air inlet and an air outlet are communicated with the sealing cavity, an air hole is formed in the valve seat and communicated with the sealing cavity, a sealing ring I and a sealing ring II are arranged on the valve plate, and when the sealing ring I and the sealing ring II abut against the valve seat, the air hole in the valve seat is located between the sealing ring I and the sealing ring II.
Preferably, the air hole on the valve seat is in a shape with a wide top and a narrow bottom.
Preferably, sealing washer I is the rubber material, and sealing washer II is the metal material.
Preferably, the drive means is of the pneumatic or hydraulic type.
The double-way valve has the advantages that the sealing ring I and the sealing ring II are arranged on the valve plate, double-way sealing of a single valve plate is realized, the weight of the valve is reduced relative to two valve plates, the structure of the valve body is more compact, the moment of a driving device and the overall quality of the valve are reduced, and the double-way valve is convenient to install and maintain on site.
When the sealing ring I and the sealing ring II leak, nitrogen is filled into the sealing cavity of the valve body through the air inlet, the air outlet is closed, the nitrogen enters the air hole of the valve seat and enters the cavity between the sealing ring I and the sealing ring II, the pressure of the nitrogen is greater than the pressure of a medium, and effective separation of the medium on two sides of the valve body is achieved.
Drawings
FIG. 1 is a side view of the structure of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a front view of the overall structure of the present invention.
In the figure: 1. an air inlet; 2. a valve body; 201. sealing the cavity; 3. a valve seat; 301. air holes; 4. a sealing ring I; 5. a sealing ring II; 6. a valve plate; 7. a pin shaft; 8. a valve shaft; 9. an air outlet; 10. swinging arms; 11. a drive device.
Detailed Description
As shown in the figure, a fill nitrogen sealing butterfly valve, including valve body 2, disk seat 3, valve plate 6, valve shaft 8, swing arm 10, drive arrangement 11, connect through round pin axle 7 between valve plate 6 and the valve shaft 8, drive arrangement 11 passes through swing arm 10, valve shaft 8 drives valve plate 6 and rotates, valve body 2 is equipped with sealed chamber 201, it has air inlet 1 to lead to on the sealed chamber 201, gas outlet 9, 3 are equipped with gas pocket 301 on the disk seat, gas pocket 301 communicates with each other with sealed chamber 201, be equipped with sealing washer I4 and sealing washer II 5 on the valve plate 6, when sealing washer I4 and sealing washer II 5 butt on disk seat 3, gas pocket 301 on the disk seat 3 is located the centre of sealing washer I4 and sealing washer II 5.
When the valve plate 6 is in a closed position, the sealing ring I4 and the sealing ring II 5 are matched with the valve seat 3, sealing is achieved by sealing force transmitted by the driving device 11, the sealing ring I4 and the sealing ring II 5 form two sealing rings, double sealing of the single valve plate 6 is achieved, weight of the valve is reduced relative to the two valve plates, the valve body 2 is compact in structure, moment of the driving device 11 and overall quality of the valve are reduced, and on-site installation and maintenance are facilitated. When the sealing ring I4 and the sealing ring II 5 leak, nitrogen is filled into the sealing cavity 201 of the valve body 2 through the air inlet 1, the air outlet 9 is closed, the nitrogen enters the air hole 301 of the valve seat 3 and enters the cavity between the sealing ring I4 and the sealing ring II 5, the pressure of the nitrogen is larger than the pressure of a medium, and the effective separation of the media on the two sides of the valve body 2 is realized.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (4)
1. The utility model provides a fill nitrogen sealing butterfly valve, includes valve body, disk seat, valve plate, valve shaft, swing arm, drive arrangement, through round pin hub connection between valve plate and the valve shaft, drive arrangement passes through swing arm, valve shaft drive valve plate and rotates, its characterized in that, the valve body is equipped with sealed chamber, it has air inlet, gas outlet to lead to on the sealed chamber, be equipped with the gas pocket on the disk seat, the gas pocket communicates with each other with sealed chamber, be equipped with sealing washer I and sealing washer II on the valve plate, when sealing washer I and II butts of sealing washer are on the disk seat, the gas pocket on the disk seat is located the centre of sealing washer I and sealing washer II.
2. The nitrogen-filled sealed butterfly valve of claim 1, wherein the air hole in the valve seat is wide at the top and narrow at the bottom.
3. The nitrogen-filled sealed butterfly valve of claim 2, wherein the seal ring i is made of rubber and the seal ring ii is made of metal.
4. The nitrogen-filled sealed butterfly valve of claim 3, wherein the drive means is a pneumatic or hydraulic drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111149134.6A CN113719619A (en) | 2021-09-29 | 2021-09-29 | Nitrogen-filled sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111149134.6A CN113719619A (en) | 2021-09-29 | 2021-09-29 | Nitrogen-filled sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113719619A true CN113719619A (en) | 2021-11-30 |
Family
ID=78685323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111149134.6A Pending CN113719619A (en) | 2021-09-29 | 2021-09-29 | Nitrogen-filled sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113719619A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115614486A (en) * | 2022-11-23 | 2023-01-17 | 浙江中德自控科技股份有限公司 | Air pressure auxiliary sealing zero-leakage butterfly valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713468A (en) * | 2009-11-17 | 2010-05-26 | 江苏省鑫通阀门制造有限公司 | Butterfly valve with single valve seat and multi-sealing structure |
| CN102359610A (en) * | 2011-11-11 | 2012-02-22 | 石家庄石特阀门有限责任公司 | Double seal butterfly valve |
| WO2015024468A1 (en) * | 2013-08-20 | 2015-02-26 | 山东莱德机械有限公司 | Self-sealing butterfly valve |
| CN206036252U (en) * | 2016-07-06 | 2017-03-22 | 华北电力大学 | Novel inflatable seal butterfly valve |
| CN215928419U (en) * | 2021-09-29 | 2022-03-01 | 江苏神通阀门股份有限公司 | Nitrogen-filled sealing butterfly valve |
-
2021
- 2021-09-29 CN CN202111149134.6A patent/CN113719619A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713468A (en) * | 2009-11-17 | 2010-05-26 | 江苏省鑫通阀门制造有限公司 | Butterfly valve with single valve seat and multi-sealing structure |
| CN102359610A (en) * | 2011-11-11 | 2012-02-22 | 石家庄石特阀门有限责任公司 | Double seal butterfly valve |
| WO2015024468A1 (en) * | 2013-08-20 | 2015-02-26 | 山东莱德机械有限公司 | Self-sealing butterfly valve |
| CN206036252U (en) * | 2016-07-06 | 2017-03-22 | 华北电力大学 | Novel inflatable seal butterfly valve |
| CN215928419U (en) * | 2021-09-29 | 2022-03-01 | 江苏神通阀门股份有限公司 | Nitrogen-filled sealing butterfly valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115614486A (en) * | 2022-11-23 | 2023-01-17 | 浙江中德自控科技股份有限公司 | Air pressure auxiliary sealing zero-leakage butterfly valve |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |