CN107061822A - A kind of flame proof valve for explosive dust atmosphere - Google Patents
A kind of flame proof valve for explosive dust atmosphere Download PDFInfo
- Publication number
- CN107061822A CN107061822A CN201710018602.3A CN201710018602A CN107061822A CN 107061822 A CN107061822 A CN 107061822A CN 201710018602 A CN201710018602 A CN 201710018602A CN 107061822 A CN107061822 A CN 107061822A
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- China
- Prior art keywords
- valve
- disposed
- flame proof
- cavity
- dust atmosphere
- Prior art date
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/363—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position the closure members being rotatable or pivoting
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0058—Optical means, e.g. light transmission, observation ports
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a kind of flame proof valve for explosive dust atmosphere, it includes valve body, positioned at the valve cavity of valve inner, counterbalance device and valve locker and the valve in valve cavity, the two ends of the valve body are respectively arranged the upstream flange interface and downstream flange interface of connection valve cavity, the upper end of the valve is directly or indirectly hinged on by valve latch in valve cavity and valve is close to upstream flange interface, in normal work, valve is opened under the percussion of the gas-solid two-phase mixture air-flow flowed with blast pressure ripple opposite direction, generation explosion time, valve is rotated in the presence of pressure wave and will blocked in upstream flange interface positioned at one end of valve cavity, stop pressure wave and flame from the downstream of dust explosion along mounting process equipment or pipe transmmision to upstream.The problem of explosion wave and explosive flame that the present invention solves in the passage containing combustible dust are propagated, blast is blocked within the specific limits.
Description
Technical field
Safety device, particularly a kind of flame proof for explosive dust atmosphere are controlled the present invention relates to a kind of dust explosion
Valve.
Background technology
Dust explosion easily occurs in grain and agricultural product dust, metallic dust, coal dust, pharmaceutical engineering powder, petrochemical industry
The industries such as dust, textile industry fiber, timber processing.With the development of production-scale continuous expansion and powder retrofit,
Multiple trend is presented in the dust explosion accident of China.On August 2nd, 2014, Fauna of Kunshan, Jiangsu Zhong Rong metallic articles Co., Ltd occurs
Especially great aluminum dust explosion accident, ultimately results in 146 people death, 258 people injury, 3.51 hundred million yuan of direct economic loss.It is anti-
The only generation of fire and explosion accident, national departments concerned requires that these workplaces should take strict explosion precaution.Flame proof valve
It is anti-to pass through particular design, it can stop that pressure wave and flame are spread to from the process equipment of dust explosion along pipe laying other
The destroying infection that process equipment is produced, by blast cut-off in part, the loss that inevitable dust explosion accident is caused is dropped
To minimum.
The content of the invention
The purpose of the present invention, being that offer is a kind of effectively can control and reduce property loss and the personnel that dust explosion is caused
The flame proof valve for explosive dust atmosphere of injury.
The present invention solve its technical problem solution be：A kind of flame proof valve for explosive dust atmosphere, it is wrapped
Include valve body, the valve cavity positioned at valve inner, counterbalance device and valve locker and in valve cavity
Valve, the two ends of the valve body are respectively arranged the upstream flange interface and downstream flange interface of connection valve cavity, the valve
Upper end be directly or indirectly hinged on by valve latch in valve cavity and valve is close to upstream flange interface, the balance
Hammer device includes counterweight and the counterweight swing arm that is connected with one end of counterweight, and one end of the counterweight swing arm passes through the
One eccentric shaft bearing sleeve is arranged on valve latch, and the valve locker includes one end and is arranged on what the first capacity eccentric bearing was put
A lock buckling groove is disposed with locking-bar and the lock fixed pedestal on valve body, the lock fixed pedestal.
As the further improvement of above-mentioned technical proposal, it is disposed with the valve on one end of downstream flange interface
At least one valve rotates linking arm, and the valve rotates linking arm and is fixed on by linking arm fixing device on valve, valve
The one end for rotating linking arm is arranged on valve latch by the second eccentric shaft bearing sleeve, and valve rotates inclined away from second in linking arm
One end of heart bearing holder (housing, cover) is disposed with holddown spring, and one end of the holddown spring is screwed in valve and rotates linking arm
Upper surface, the other end of holddown spring extends after valve rotates linking arm to be contacted with valve.
As the further improvement of above-mentioned technical proposal, the top of the valve body is disposed with deashing apparatus for examination and repair, described clear
Grey apparatus for examination and repair includes deashing access panel and sealing ring, and the deashing access panel and sealing ring are bolted to by some
On valve body, the medial surface of deashing access panel, which is disposed with one, is used for the valve postive stop baffle of limiter valve slewing area.
As the further improvement of above-mentioned technical proposal, in addition to valve angle display device, the valve angle is shown
Device and counterbalance device are located at the two ends of valve latch, the valve angle display device include valve angle show pin and
The scale plate on the outside of valve body is arranged in, the valve angle shows that pin is arranged on valve latch by three eccentricity bearing holder (housing, cover).
As the further improvement of above-mentioned technical proposal, the valve latch is pacified by first bearing seat and second bearing seat
On valve body, the first bearing seat is close to counterbalance device, and the second bearing seat is close to valve angle display device.
As the further improvement of above-mentioned technical proposal, the lock fixed pedestal, which is disposed with one, to be used to consolidate locking-bar
It is scheduled on the sliding-tongue lock in lock buckling groove.
As the further improvement of above-mentioned technical proposal, the body base is provided with two support bases, the support base
Between be disposed with an antiknock observation window.
As the further improvement of above-mentioned technical proposal, the top corner of the valve body is respectively disposed with a hoisting ring.
As the further improvement of above-mentioned technical proposal, the end portion of the valve cavity is convex structure, described
The upper part of valve cavity is square shape structure.
As the further improvement of above-mentioned technical proposal, an inclination contacted with valve is disposed with the valve cavity
The through hole of one and upstream flange orifice are disposed with face, the inclined plane, the internal diameter of the through hole is less than the straight of valve
Footpath.
The beneficial effects of the invention are as follows：The present invention connected by downstream flange interface allow the process equipment that explodes or
Person's pipeline, upstream flange interface connection does not allow the process equipment or pipeline that explode, in normal work, valve with it is quick-fried
Opened under the percussion of the gas-solid two-phase mixture air-flow of fried pressure wave opposite direction flowing, occur explosion time, valve is in pressure
Rotate and will be blocked in upstream flange interface positioned at one end of valve cavity in the presence of Reeb, stop pressure wave and flame from powder
The downstream of dust explosion is along mounting process equipment or pipe transmmision to upstream.The present invention is solved in the passage containing combustible dust
In explosion wave and explosive flame the problem of propagate, blast is blocked within the specific limits.Avoid local process equipment quick-fried
The fried shock wave produced and flame cause the blast of the even whole workshop of other process equipments.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described.Obviously, described accompanying drawing is a part of embodiment of the present invention, rather than is all implemented
Example, those skilled in the art on the premise of not paying creative work, can also obtain other designs according to these accompanying drawings
Scheme and accompanying drawing.
Fig. 1 is the front view of the present invention；
Fig. 2 is the top view of the present invention；
Fig. 3 is the dorsal view of the present invention；
Fig. 4 is the sectional view of the present invention；
Fig. 5 is the structural representation of valve in the present invention；
Fig. 6 is the isometric view of angle one of the present invention；
Fig. 7 is the isometric view of angle two of the present invention.
Embodiment
The technique effect of the design of the present invention, concrete structure and generation is carried out below with reference to embodiment and accompanying drawing clear
Chu, it is fully described by, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this hair
Bright a part of embodiment, rather than whole embodiments, based on embodiments of the invention, those skilled in the art is not paying
The other embodiment obtained on the premise of creative work, belongs to the scope of protection of the invention.In addition, be previously mentioned in text
All connection/annexations, not singly refer to component and directly connect, and refer to be added deduct by adding according to specific implementation situation
Few couple auxiliary, to constitute more excellent draw bail.
1~Fig. 7 of reference picture, a kind of flame proof valve for explosive dust atmosphere, it includes valve body, positioned at valve inner
Valve cavity, counterbalance device and valve locker and the valve 24 in valve cavity, the two ends of the valve body
Be respectively arranged the upstream flange interface 23 and downstream flange interface 22 of connection valve cavity, the upper end of the valve 24 directly or
It is hinged on indirectly by valve latch 5 in valve cavity and valve 24 is close to upstream flange interface 23, the counterbalance device bag
Counterweight 1 and the counterweight swing arm 2 being connected with one end of counterweight 1 are included, one end of the counterweight swing arm 2 is inclined by first
Heart bearing holder (housing, cover) 3 is arranged on valve latch 5, and the valve locker includes one end and is arranged on the first eccentric shaft bearing sleeve 3
A lock buckling groove is disposed with locking-bar 6 and the lock fixed pedestal 7 on valve body, the lock fixed pedestal 7.It is flat
Weighing apparatus hammer 1 is protected valve 24 by counterweight swing arm 2 in the presence of its gravity during airless conveying in process equipment or pipeline
Hold in off position.
Cross downstream flange interface 22 and connect the process equipment or pipeline for allowing to explode, upstream flange interface 23 is connected
Do not allow the process equipment or pipeline exploded, in normal work, valve 24 flows with blast pressure ripple opposite direction
Gas-solid two-phase mixture air-flow percussion under open, occur explosion time, valve 24 rotates simultaneously in the presence of pressure wave
To be blocked in upstream flange interface 23 positioned at one end of valve cavity, stop pressure wave and flame from the downstream of dust explosion along
Mounting process equipment or pipe transmmision are to upstream.When valve 24 blocks upstream flange interface 23, valve latch 5 is with lock
Button bar 6 is rotated and one end of locking-bar 6 is embedded in lock buckling groove, prevent that impulse force is excessive, and locking-bar 6 rotates more than its turn
Dynamic scope.The problem of explosion wave and explosive flame that the present invention solves in the passage containing combustible dust are propagated, will
Blast is blocked within the specific limits.Shock wave and flame that local process equipment explosion is produced is avoided to cause other process equipments very
To the blast of whole workshop.
It is further used as preferred embodiment, is disposed with the valve 24 on one end of downstream flange interface 22
At least one valve rotates linking arm 16, and the valve rotates linking arm 16 and is fixed on valve 24 by linking arm fixing device 18
On, one end that valve rotates linking arm 16 is arranged on valve latch 5 by the second eccentric shaft bearing sleeve 17, and valve rotates linking arm
One end away from the second eccentric shaft bearing sleeve 17 is disposed with holddown spring 15 in 16, and one end of the holddown spring 15 is solid by screw
The upper surface that valve rotates linking arm 16 is scheduled on, the other end of holddown spring 15 extends after valve rotates linking arm to be connect with valve
Touch.Holddown spring 15 is in Z-shaped.In addition, after exploding and after blast discharge, after locking-bar 6 spins off from lock buckling groove,
The entrance point of upstream flange interface 23 is tightly attached to by the valve 24 of holddown spring 15.It is passed through when from downstream flange interface 22
After the gas-solid two-phase mixture air-flow flowed with blast pressure ripple opposite direction, valve 24 is in full opening of state.
It is further used as preferred embodiment, the top of the valve body is disposed with deashing apparatus for examination and repair, the deashing inspection
Repairing device includes deashing access panel 12 and sealing ring 13, if the deashing access panel 12 and sealing ring 13 are solid by bolt stem
It is scheduled on valve body, the medial surface of deashing access panel 12, which is disposed with one, is used for the valve limiting block of the slewing area of limiter valve 24
Plate 14, the medial surface of the deashing access panel 12 is upper wall on the inside of the valve cavity.In normal work, valve 24 with
Opened under the percussion of the gas-solid two-phase mixture air-flow of blast pressure ripple opposite direction flowing, pass through valve postive stop baffle 14
Limit the stroke for the valve 24 opened.
It is further used as preferred embodiment, in addition to valve angle display device, the valve angle display device
It is located at the two ends of valve latch 5 with counterbalance device, the valve angle display device includes valve angle and shows pin 9 and cloth
The scale plate 8 on the outside of valve body is put, the valve angle shows that pin 9 is arranged on valve latch 5 by three eccentricity bearing holder (housing, cover) 10
On, locking-bar 6, valve 24, counterweight 1 and state valve angle show pin 9 be connected by valve latch 5, valve insert
Under the rotation of pin 5, locking-bar 6, valve 24, counterweight 1 and state valve angle and show that pin 9 is acted simultaneously, and pass through valve angle
Degree shows that pin 9 shows the angle that valve 24 is opened.
It is further used as preferred embodiment, the valve latch 5 is pacified by first bearing seat 4 and second bearing seat 11
On valve body, the first bearing seat 4 is close to counterbalance device, and the second bearing seat 11 shows close to valve angle and filled
Put.
It is further used as preferred embodiment, the lock fixed pedestal 7, which is disposed with one, to be used to fix locking-bar 6
Sliding-tongue lock 8 in lock buckling groove, occurs explosion time, and valve 24 is rotated in the presence of pressure wave and by upstream flange interface 23
In be located at one end of valve cavity and block, stop pressure wave and flame from the downstream of dust explosion along mounting process equipment or pipe
Road propagates to upstream.When valve 24 blocks upstream flange interface 23, valve latch 5 is rotated and locked with locking-bar 6
One end of button bar 6 is embedded in lock buckling groove, and one end of locking-bar 6 is locked in lock buckling groove by sliding-tongue lock 8.Further make
For preferred embodiment, the body base, which is provided between two support bases 20, the support base 20, to be disposed with one and resists
Quick-fried observation window 21, the working condition of valve 24 is observed by antiknock observation window 21.
It is further used as preferred embodiment, the top corner of the valve body is respectively disposed with a hoisting ring 19, is easy to
Valve body is fixed into lifting and fixed.
It is further used as preferred embodiment, the end portion of the valve cavity is convex structure, the valve
The upper part of cavity is square shape structure.
It is further used as preferred embodiment, an inclined plane contacted with valve 24 is disposed with the valve cavity
25, a through hole connected with upstream flange interface 23 is disposed with the inclined plane 25, the internal diameter of the through hole is less than valve
24 diameter, is easy to valve 24 to block upstream flange interface 23.
Above is the better embodiment to the present invention is illustrated, but the invention is not limited to the reality
Apply example, those skilled in the art can also make a variety of equivalent modifications or replace on the premise of without prejudice to spirit of the invention
Change, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (10)
1. a kind of flame proof valve for explosive dust atmosphere, it is characterised in that：It includes valve body, the valve positioned at valve inner
Cavity, counterbalance device and valve locker and the valve in valve cavity, the two ends difference cloth of the valve body
The upstream flange interface and downstream flange interface of connection valve cavity are put, the upper end of the valve directly or indirectly passes through valve
Latch is hinged in valve cavity and valve is close to upstream flange interface, the counterbalance device include counterweight and with balance
The counterweight swing arm of one end connection of hammer, one end of the counterweight swing arm is arranged on valve latch by the first eccentric shaft bearing sleeve
On, the valve locker includes one end and is arranged on locking-bar and the lock on valve body that the first capacity eccentric bearing is put
Detain and be disposed with a lock buckling groove on fixed pedestal, the lock fixed pedestal.
2. the flame proof valve according to claim 1 for explosive dust atmosphere, it is characterised in that：It is close in the valve
At least one valve is disposed with one end of downstream flange interface and rotates linking arm, the valve rotates linking arm and passes through linking arm
Fixing device is fixed on valve, and one end that valve rotates linking arm is arranged on valve latch by the second eccentric shaft bearing sleeve,
Valve rotates one end away from the second eccentric shaft bearing sleeve in linking arm and is disposed with holddown spring, and one end of the holddown spring passes through
Screw is fixed on the upper surface that valve rotates linking arm, the other end of holddown spring extend valve rotate after linking arm with valve
Contact.
3. the flame proof valve according to claim 2 for explosive dust atmosphere, it is characterised in that：The top of the valve body
Deashing apparatus for examination and repair is disposed with, the deashing apparatus for examination and repair includes deashing access panel and sealing ring, the deashing access panel
It is bolted to sealing ring by some on valve body, the medial surface of deashing access panel is disposed with one and turned for limiter valve
The valve postive stop baffle of dynamic scope.
4. the flame proof valve according to claim 1 for explosive dust atmosphere, it is characterised in that：Also include valve angle
Display device, the valve angle display device and counterbalance device are located at the two ends of valve latch, and the valve angle is shown
Device includes valve angle and shows pin and the scale plate being arranged on the outside of valve body, and the valve angle shows that pin is inclined by the 3rd
Heart bearing holder (housing, cover) is arranged on valve latch.
5. the flame proof valve according to claim 4 for explosive dust atmosphere, it is characterised in that：The valve latch leads to
Cross first bearing seat and second bearing seat is arranged on valve body, the first bearing seat is close to counterbalance device, second axle
Bearing is close to valve angle display device.
6. the flame proof valve for explosive dust atmosphere according to any one of claim 1 ~ 4, it is characterised in that：The lock
Button fixed pedestal is disposed with a sliding-tongue for being used to locking-bar being fixed in lock buckling groove and latched.
7. the flame proof valve according to claim 1 for explosive dust atmosphere, it is characterised in that：The body base is set
It is equipped between two support bases, the support base and is disposed with an antiknock observation window.
8. the flame proof valve according to claim 1 for explosive dust atmosphere, it is characterised in that：The top of the valve body
Corner is respectively disposed with a hoisting ring.
9. the flame proof valve according to claim 1 for explosive dust atmosphere, it is characterised in that：The valve cavity
End portion is convex structure, and the upper part of the valve cavity is square shape structure.
10. the flame proof valve according to claim 1 for explosive dust atmosphere, it is characterised in that：The valve cavity
Inside be disposed be disposed with an inclined plane contacted with valve, the inclined plane one it is logical with upstream flange orifice
Hole, the internal diameter of the through hole is less than the diameter of valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710018602.3A CN107061822B (en) | 2017-01-10 | 2017-01-10 | Explosion-proof valve for explosive dust environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710018602.3A CN107061822B (en) | 2017-01-10 | 2017-01-10 | Explosion-proof valve for explosive dust environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107061822A true CN107061822A (en) | 2017-08-18 |
| CN107061822B CN107061822B (en) | 2023-05-16 |
Family
ID=59597950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710018602.3A Active CN107061822B (en) | 2017-01-10 | 2017-01-10 | Explosion-proof valve for explosive dust environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061822B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533765A (en) * | 2018-04-24 | 2018-09-14 | 东北大学 | A kind of intelligent self-cleaning reason one-way turnover flame proof valve |
| CN108843847A (en) * | 2018-08-16 | 2018-11-20 | 昆山嘉科环保设备有限公司 | Explode isolating valve locking device |
| CN109027354A (en) * | 2018-10-17 | 2018-12-18 | 河北锐智纳米科技有限公司 | Flame proof flap valve |
| CN112943996A (en) * | 2021-01-26 | 2021-06-11 | 广州特种机电设备检测研究院 | Dust explosion suppression device based on flow and vibration coupling excitation |
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| CN202531924U (en) * | 2012-03-21 | 2012-11-14 | 段宝林 | Explosion-proof one-way valve |
| CN103742696A (en) * | 2014-01-02 | 2014-04-23 | 朱志强 | Quick-valve magnetic control gravity emergency drive device |
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| TWM500185U (en) * | 2014-10-21 | 2015-05-01 | Hui-Ming Lin | Electronic type gas shutoff valve structure |
| CN104776253A (en) * | 2015-04-09 | 2015-07-15 | 英诺威阀业有限公司 | Hard sealing inclined seat slow opening and slow closing check valve |
| CN105351573A (en) * | 2015-11-13 | 2016-02-24 | 山东莱德机械有限公司 | Self-sealing swing flexible-sealing check valve |
| CN206478279U (en) * | 2017-01-10 | 2017-09-08 | 广东省安全生产技术中心（广东省安全生产宣传教育中心） | A kind of flame proof valve for explosive dust atmosphere |
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| GB190009069A (en) * | 1900-05-16 | 1901-03-09 | John Gaspard Villar | Improvements in the Propulsion of Boats, Yachts and the like. |
| FR2205167A5 (en) * | 1972-10-26 | 1974-05-24 | Lafon Georges | |
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| CN102644757A (en) * | 2011-07-12 | 2012-08-22 | 李庆国 | Full-closed type double-ball type interlocking separation valve |
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| CN103742696A (en) * | 2014-01-02 | 2014-04-23 | 朱志强 | Quick-valve magnetic control gravity emergency drive device |
| CN203784389U (en) * | 2014-04-21 | 2014-08-20 | 昆山嘉科环保设备有限公司 | Explosion isolating valve |
| TWM500185U (en) * | 2014-10-21 | 2015-05-01 | Hui-Ming Lin | Electronic type gas shutoff valve structure |
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| CN206478279U (en) * | 2017-01-10 | 2017-09-08 | 广东省安全生产技术中心（广东省安全生产宣传教育中心） | A kind of flame proof valve for explosive dust atmosphere |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533765A (en) * | 2018-04-24 | 2018-09-14 | 东北大学 | A kind of intelligent self-cleaning reason one-way turnover flame proof valve |
| CN108843847A (en) * | 2018-08-16 | 2018-11-20 | 昆山嘉科环保设备有限公司 | Explode isolating valve locking device |
| CN109027354A (en) * | 2018-10-17 | 2018-12-18 | 河北锐智纳米科技有限公司 | Flame proof flap valve |
| CN109027354B (en) * | 2018-10-17 | 2023-10-27 | 河北锐智纳米科技有限公司 | Explosion-proof flap valve |
| CN112943996A (en) * | 2021-01-26 | 2021-06-11 | 广州特种机电设备检测研究院 | Dust explosion suppression device based on flow and vibration coupling excitation |
| CN112943996B (en) * | 2021-01-26 | 2022-06-24 | 广州特种机电设备检测研究院 | Dust explosion and explosion suppression device based on flow and vibration coupling activation |
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| CN107061822B (en) | 2023-05-16 |
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