CN108331939A - Active pipe pressure type flame proof valve - Google Patents
Active pipe pressure type flame proof valve Download PDFInfo
- Publication number
- CN108331939A CN108331939A CN201810299336.0A CN201810299336A CN108331939A CN 108331939 A CN108331939 A CN 108331939A CN 201810299336 A CN201810299336 A CN 201810299336A CN 108331939 A CN108331939 A CN 108331939A
- Authority
- CN
- China
- Prior art keywords
- valve
- air inlet
- inlet electromagnetic
- sebific duct
- electromagnetic valve
- 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.)
- Granted
Links
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
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/02—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm
- F16K7/04—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force
- F16K7/07—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force by means of fluid pressure
-
- 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
- F16K27/0236—Diaphragm cut-off apparatus
-
- 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
- F16K27/10—Welded housings
- F16K27/102—Welded housings for lift-valves
-
- 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
- F16K31/42—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Valve Housings (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention provides a kind of active pipe pressure type flame proof valve, it includes valve casing, valve inner casing and sebific duct, valve casing is fixed on the outside of valve inner casing and forms the first air cavity of sealing between the two, sebific duct is coaxially threaded through in valve inner casing and the end of the two is fixedly linked, the second air cavity of sealing is formed between sebific duct and valve inner casing, is medium channel in sebific duct；The first air inlet electromagnetic valve, the second air inlet electromagnetic valve and the venting solenoid valve being placed on valve casing, first air inlet electromagnetic valve is used to supply for the first air cavity, the air inlet of second air inlet electromagnetic valve is located in the first air cavity, the gas outlet of second air inlet electromagnetic valve is communicated with the second air cavity, and venting solenoid valve is connected to the second air cavity and deflates for the second air cavity；It is additionally provided with the pressure detecting assembly for measuring the first gas cavity pressure on valve casing, and the first air inlet electromagnetic valve, the second air inlet electromagnetic valve, venting solenoid valve, pressure detecting assembly is equal is connected with controller.The configuration of the present invention is simple, and reduce and close the response time.
Description
Technical field
The present invention relates to explosion-proof device fields, more particularly to a kind of active pipe pressure type flame proof valve.
Background technology
With the development of modern industry, the potentially danger of dust explosion greatly increases.In actual production, it is only used only
Bursting diaphragm venting of dust explosion, does not carry out explosion isolation, and the flame for generation of exploding will be transferred to other phases with pressure wave by the pipeline that is connected
Attached device causes the generation of secondary or even bigger power explosion.Flame proof technology can prevent explosion from initial position to other works
Skill cell propagation avoids the generation of " secondary " explosion or system explosion accident, to mitigate explosion disaster.Dust explosion isolating valve
It is used to easily cause the occasion of dust explosion as a kind of passive device original paper.
Especially in the dust pelletizing system of explosive dust, when the dust of deduster explodes, the flame for generation of exploding
With shock wave along pipe transmmision to other region, it is likely that cause other region that the subsequent explosion of dust occurs, therefore in pipe
Among road setting it is a kind of can fast reaction and partition flame and the valve of shock motion just become very necessary.
Chinese patent 201621443591.0 discloses a kind of dust back pressure flame proof valve, including valve body, flap, in the valve body
Inclined end face is fixedly mounted in one, and flap is fixedly connected with flap rocking bar, and flap rocking bar upper end is fixed with locating shaft, beveled end
Face side is installed with limiting plate, and locating shaft is connect with the transmission device being installed on outside valve body, and valve deck is fixedly connected with the valve body,
Gasket seal is installed with the contact position of valve body on valve deck, detonation or explosion occurs in the outlet side of flame proof valve, because back pressure increases,
Flow reversal so that back pressure flap is closed, and the pressure wave meeting envoy's flap for generation of exploding closes the inclined end face in entrance side
On, to prevent detonation propagation to upstream line and equipment, play the role of isolation, but its response speed is difficult to meet use
Demand.
Therefore, it is necessary to a kind of simple in structure, closings to respond fast pipe pressure type flame proof valve.
Invention content
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of active pipe pressure type flame proof valve,
For solving the problems, such as that valve body structure is complicated in the prior art, closes low-response.
In order to achieve the above objects and other related objects, the present invention provides a kind of active pipe pressure type flame proof valve comprising valve
Shell, valve inner casing and sebific duct, valve casing are fixed on the outside of valve inner casing and form the first air cavity of sealing between the two, and the sebific duct is same
Axis is threaded through in valve inner casing and the end of the two is fixedly linked, and forms the second air cavity of sealing between sebific duct and valve inner casing, in sebific duct
For medium channel；The first air inlet electromagnetic valve, the second air inlet electromagnetic valve and the venting solenoid valve being placed on the valve casing, described first
Air inlet electromagnetic valve is communicated with first air cavity and for being supplied for the first air cavity, the air inlet of the second air inlet electromagnetic valve is located at institute
It states in the first air cavity, the gas outlet of the second air inlet electromagnetic valve is communicated with second air cavity, the venting solenoid valve connection second
Air cavity and for the second air cavity deflate；The pressure detecting assembly for measuring the first gas cavity pressure is additionally provided on the valve casing,
And first air inlet electromagnetic valve, the second air inlet electromagnetic valve, venting solenoid valve and pressure detecting assembly are connected with controller.
Preferably, the end of the valve inner casing is equipped with ring flange, and the end of the sebific duct is fastened on ring flange and external method
Between blue disk.
Preferably, the both ends wall thickness of the sebific duct is more than the wall thickness in the middle part of sebific duct.
Preferably, the gap among the sebific duct between the valve inner casing is more than the sebific duct both ends and the valve inner casing two
Gap between end.
Preferably, first air inlet electromagnetic valve, second air inlet electromagnetic valve and the venting solenoid valve are guide
Formula solenoid valve.
Preferably, the valve casing is welded on the valve inner casing.
Preferably, circumferentially upper ring more axially extending reinforcing ribs of cloth of the sebific duct.
Preferably, first air inlet electromagnetic valve, the second air inlet electromagnetic valve and venting solenoid valve with remote controllers phase
Even.
As described above, the pneumatic tubing clip valve of the present invention, has the advantages that：It is close that it uses valve casing and valve inner casing to surround
Envelope the first air cavity, make the first air cavity as the inlet air source storage of the second air cavity at, gas can be made by the second air inlet electromagnetic valve
Body quickly enters the closing that the second air cavity completes pneumatic tubing clip valve, reduces and closes the response time；In addition, the present invention sebific duct and
Valve inner casing both ends are fixed and valve casing is fixed on the outside of valve inner casing, are kept entire valve body structure simple, are readily produced, and are coaxially disposed
Valve inner casing and sebific duct can design its bore as needed, be applicable to the keying of small-bore pipeline, be equally applicable to big mouth
Diameter pipeline, such as the pipeline of DN1000.
Description of the drawings
Fig. 1 is shown as the front view of the active pipe pressure type flame proof valve of the present invention.
Fig. 2 is shown as the vertical view of the active pipe pressure type flame proof valve of the present invention.
Fig. 3 is shown as the sectional view of the active pipe pressure type flame proof valve of the present invention.
Status diagram when the active pipe pressure type flame proof valve that Fig. 4 is shown as the present invention is closed.
Fig. 5 is shown as the valve casing and valve inner casing schematic diagram of the active pipe pressure type flame proof valve of the present invention.
Component label instructions
1 dust cover
2 valve casings
3 ring flanges
4 sebific ducts
5 external ring flanges
6 venting solenoid valves
7 blowdown valves
8 first air inlet electromagnetic valves
9 pressure switches
10 pressure gauges
11 second air inlet electromagnetic valves
12 valve inner casings
100 first air cavitys
200 second air cavitys
300 mounting holes
Specific implementation mode
Illustrate that embodiments of the present invention, those skilled in the art can be by this explanations by particular specific embodiment below
Content disclosed by book understands other advantages and effect of the present invention easily.
It please refers to Fig.1 to Fig. 5.It should be clear that structure, ratio, size etc. depicted in this specification institute attached drawing, only to
Coordinate the revealed content of specification, so that those skilled in the art understands and reads, being not limited to the present invention can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, should all still fall in disclosed skill
In the range of art content can cover.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " centre " and
The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness
It is altered or modified, in the case where changing technology contents without essence, when being also considered as the enforceable scope of the present invention.
As shown in Figure 1, Figure 2 and Figure 3, the present invention provides a kind of active pipe pressure type flame proof valve of quick closedown comprising valve
Shell 2, valve inner casing 12 and sebific duct 4, valve casing 12 are fixed on the outside of valve inner casing 4 and form the first air cavity 100 of sealing between the two,
The sebific duct 4 is coaxially threaded through in valve inner casing 12 and the end of the two is fixedly linked, and sealing is formed between sebific duct 4 and valve inner casing 12
Second air cavity 200, interior sebific duct 4 is medium channel；The first air inlet electromagnetic valve 8, the second air inlet electromagnetic valve being placed on the valve casing 2
11 and venting solenoid valve 6, first air inlet electromagnetic valve 8 communicates with first air cavity 100 and for being supplied for the first air cavity 100
The air inlet of gas, the second air inlet electromagnetic valve 11 is located in first air cavity 100, the gas outlet of the second air inlet electromagnetic valve 11 and institute
It states the second air cavity 200 to communicate, the venting solenoid valve 6 is connected to the second air cavity and deflates for the second air cavity；On the valve casing 2 also
Pressure detecting assembly equipped with pressure in measurement first air cavity 100, and the first air inlet electromagnetic valve 8, the second air inlet electromagnetic valve
11 and venting solenoid valve 6, pressure detecting assembly be connected with controller signals, the controller in the present embodiment can be remote control
Device, or the controller on active pipe pressure type flame proof valve.The present invention surrounds sealing using valve casing 2 and valve inner casing 12
First air cavity 100 makes at inlet air source storage of first air cavity 100 as the second air cavity 200, can pass through the second air inlet electromagnetic valve
11 make gas quickly enter the closing that the second air cavity 200 completes pneumatic tubing clip valve, reduce and close the response time；In addition, this hair
Bright sebific duct 4 and 12 both ends of valve inner casing is fixed and valve casing 2 is fixed on the outside of valve inner casing 12, keeps entire valve body structure simple, easily
In production, and the valve inner casing and sebific duct that are coaxially disposed can design its bore as needed, be applicable to opening for small-bore pipeline
It closes, is equally applicable to large diameter pipeline, such as the pipeline of DN1000.
For ease of manufacturing, as shown in Figure 5, valve casing 2 and valve inner casing 12 in the present embodiment individually produce, by valve casing
2 are welded on the outer wall of valve inner casing 12, and welding manner can enhance the leakproofness of the first air cavity 100.It is all provided on valve casing and valve inner casing
There is mounting hole 300, mounting hole 300 is for installing above-mentioned first air inlet electromagnetic valve 8, the second air inlet electromagnetic valve 11 or venting solenoid valve
6.The quantity of above-mentioned first air inlet electromagnetic valve 8, the second air inlet electromagnetic valve 11 and venting solenoid valve 6 can be arranged as required to, for more
Plus-minus close less the response time, the second air inlet electromagnetic valve 11 can be it is multiple, can ring cloth valve inner casing 12 it is circumferentially disposed；Also can pass through
The second air inlet electromagnetic valve 11 of atm number is selected to close the response time to reduce；It is rung if the opening for accelerating pipe pressure type flame proof valve
It answers, above-mentioned venting solenoid valve 6 is alternatively multiple.
A ring flange 3 is welded in the end of valve inner casing 12 in the present embodiment, and the end of sebific duct 4 is fastened on ring flange 3 and outer
Between setting ring flange 5, sebific duct 4 and valve inner casing 12 it is easy for installation, and the close of the second air cavity 200 is ensured by the fixation of ring flange
Feng Xing.
To improve the service life of above-mentioned pipe pressure type flame proof valve, the both ends wall thickness of sebific duct 4 is more than in sebific duct in the present embodiment
The wall thickness in portion, when pneumatic tubing clip valve is in normal use, the medium in pipeline enters in the medium channel surrounded by sebific duct 4, when
When pneumatic tubing clip valve being needed to close, in closing process, medium can impact the both ends of sebific duct 4, therefore sebific duct both ends are thicker, increase
Its wearability improves its service life.
Gap in the present embodiment among sebific duct 4 between valve inner casing 12 is more than between sebific duct both ends and valve inner casing both ends
Gap, i.e. above-mentioned second air cavity 200 are primarily present in the interlude of sebific duct and valve inner casing, gap between the two, it can be ensured that air inlet
When air-flow flowing efficient stable.
More axially extending reinforcing ribs of ring cloth in the circumferential direction of sebific duct 4 in the present embodiment, reinforcing rib along sebific duct length direction,
When pneumatic tubing clip valve is closed, the valve number of sebific duct deformation is determined with the quantity of reinforcing rib, can also be reduced and be closed the response time.
In addition the valve number of sebific duct deformation is also by the influence of the quantity and its charge flow rate rate of above-mentioned second air inlet electromagnetic valve 11.
For ease of making pipe pressure type flame proof valve quick closedown, the first air inlet electromagnetic valve 8 in the present embodiment, described second are into pneumoelectric
Magnet valve 11 and the venting solenoid valve 6 are guide electromagnetic valve.Above-mentioned pressure detecting assembly includes pressure switch 9 and pressure gauge
10, pressure gauge 10 is used to detect pressure and the display in the first air cavity 100, and pressure switch 9 is used for when the pressure in the first air cavity 100
When power reaches preset value, the first air inlet electromagnetic valve 8 of cut-out is closed to the first gas interacvity air-filling.
For ease of better remote control, above-mentioned first air inlet electromagnetic valve 8, the second air inlet electromagnetic valve 11 and venting solenoid valve
6 are connected with remote controllers.To protect above-mentioned first air inlet electromagnetic valve 8, the second air inlet electromagnetic valve 11 and venting solenoid valve 6,
Dust cover 1 is set on above-mentioned valve casing, the first air inlet electromagnetic valve 8, the second air inlet electromagnetic valve 11 and venting solenoid valve 6 are placed in
1 in dust cover.
The operation principle of above-mentioned pipe pressure type flame proof valve is：First air inlet electromagnetic valve 8 is opened to be inflated into the first air cavity 100,
When reaching preset value, pressure switch 9 is cut off the first air inlet electromagnetic valve 8 and is closed to the first gas interacvity air-filling.When needing pneumatic tube
When pressing from both sides valve closing, shutdown signal is supplied to the second air inlet electromagnetic valve 11, and the second air inlet electromagnetic valve 11 is with the speed of Millisecond
It opens, the gas in the first air cavity 100 is entered with the speed of faster Millisecond by the gap shape between sebific duct 4 and valve inner casing 12
At the second air cavity 200 in, sebific duct is closed with the speed of Millisecond, the pressure in the first air cavity 100 is less than setting value, pressure at this time
Power switch makes the first air inlet electromagnetic valve 8 open, and realizes automatic inflating device to specified pressure.When needing to reopen pipe pressure type flame proof valve
When, it is first turned on venting solenoid valve 6 and excludes gas in the second air cavity between sebific duct 4 and valve inner casing 12 so that sebific duct 4 is multiple
Position.When needing maintenance, blowdown valve 7 is first opened, excludes the dirt in the second air cavity.
In conclusion the pipe pressure type flame proof valve of the present invention, uses valve casing and valve inner casing to surround the first air cavity of sealing, makes
First air cavity as the inlet air source storage of the second air cavity at, gas can be made to quickly enter the second gas by the second air inlet electromagnetic valve
Chamber completes the closing of pipe pressure type flame proof valve, reduces and closes the response time.So the present invention effectively overcome it is in the prior art
Various shortcoming and have high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology can all carry out modifications and changes to above-described embodiment without violating the spirit and scope of the present invention.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should by the present invention claim be covered.
Claims (7)
1. a kind of active pipe pressure type flame proof valve, which is characterized in that be fixed in valve including valve casing, valve inner casing and sebific duct, valve casing
The outside of shell and the first air cavity for forming sealing between the two, the sebific duct is coaxially threaded through in valve inner casing and the end of the two is fixed
It is connected, forms the second air cavity of sealing between sebific duct and valve inner casing, is medium channel in sebific duct；Be placed on the valve casing first into
Pneumoelectric magnet valve, the second air inlet electromagnetic valve and venting solenoid valve, first air inlet electromagnetic valve are communicated and are used with first air cavity
It is supplied in for the first air cavity, the air inlet of the second air inlet electromagnetic valve is located in first air cavity, and the second air inlet electromagnetic valve goes out
Gas port is communicated with second air cavity, and the venting solenoid valve is connected to the second air cavity and deflates for the second air cavity；The valve casing
On be additionally provided with the pressure detecting assembly for measuring the first gas cavity pressure, and the first air inlet electromagnetic valve, the second air inlet electromagnetic valve,
Venting solenoid valve and pressure detecting assembly are connected with controller.
2. active pipe pressure type flame proof valve according to claim 1, it is characterised in that：The end of the valve inner casing is equipped with flange
The end of disk, the sebific duct is fastened between ring flange and external ring flange.
3. active pipe pressure type flame proof valve according to claim 1, it is characterised in that：The both ends wall thickness of the sebific duct is more than glue
Wall thickness in the middle part of pipe.
4. active pipe pressure type flame proof valve according to claim 1, it is characterised in that：The sebific duct centre and the valve inner casing
Between gap be more than gap between the sebific duct both ends and valve inner casing both ends.
5. active pipe pressure type flame proof valve according to claim 1, it is characterised in that：It is first air inlet electromagnetic valve, described
Second air inlet electromagnetic valve and the venting solenoid valve are guide electromagnetic valve.
6. active pipe pressure type flame proof valve according to claim 1, it is characterised in that：The valve casing is welded on the valve inner casing
On.
7. active pipe pressure type flame proof valve according to claim 1, it is characterised in that：The circumferentially upper ring more axis of cloth of the sebific duct
To the reinforcing rib of extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810299336.0A CN108331939B (en) | 2018-04-04 | 2018-04-04 | Driving pipe pressure type explosion-proof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810299336.0A CN108331939B (en) | 2018-04-04 | 2018-04-04 | Driving pipe pressure type explosion-proof valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108331939A true CN108331939A (en) | 2018-07-27 |
| CN108331939B CN108331939B (en) | 2024-03-22 |
Family
ID=62932625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810299336.0A Active CN108331939B (en) | 2018-04-04 | 2018-04-04 | Driving pipe pressure type explosion-proof valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108331939B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586779A (en) * | 2021-08-17 | 2021-11-02 | 郑州中泰安科粉体科技有限公司 | Active two-way explosion-proof valve |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3617522C1 (en) * | 1986-05-24 | 1987-07-02 | Vsr Eng Foerdertechnik | Device for the abrupt shut-off of pipelines, especially dust-carrying pipelines, in the event of explosions |
| CN103542128A (en) * | 2012-07-10 | 2014-01-29 | 上海阀门五厂有限公司 | Pneumatic tube clamping valve |
| CN106090291A (en) * | 2016-05-26 | 2016-11-09 | 扬州市君睿创智工业设计有限公司 | A kind of operated pneumatic valve |
| CN106499840A (en) * | 2016-10-19 | 2017-03-15 | 上海盛唐阀门科技有限公司 | A kind of pneumatic tubing clip valve |
| CN106870942A (en) * | 2017-02-27 | 2017-06-20 | 江苏爵格工业设备有限公司 | A kind of pipe pressure type flame proof valve |
| CN107420579A (en) * | 2017-06-08 | 2017-12-01 | 江苏远洋阀门智控股份有限公司 | A kind of screw thread type pneumatic tube pinch valve |
| CN107575601A (en) * | 2017-08-23 | 2018-01-12 | 上海泽宁环保科技有限公司 | A kind of negative pressure source power vacuum valve element, sealing device and interface valve |
| CN208169585U (en) * | 2018-04-04 | 2018-11-30 | 江苏爵格工业设备有限公司 | Active pipe pressure type flame proof valve |
-
2018
- 2018-04-04 CN CN201810299336.0A patent/CN108331939B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3617522C1 (en) * | 1986-05-24 | 1987-07-02 | Vsr Eng Foerdertechnik | Device for the abrupt shut-off of pipelines, especially dust-carrying pipelines, in the event of explosions |
| CN103542128A (en) * | 2012-07-10 | 2014-01-29 | 上海阀门五厂有限公司 | Pneumatic tube clamping valve |
| CN106090291A (en) * | 2016-05-26 | 2016-11-09 | 扬州市君睿创智工业设计有限公司 | A kind of operated pneumatic valve |
| CN106499840A (en) * | 2016-10-19 | 2017-03-15 | 上海盛唐阀门科技有限公司 | A kind of pneumatic tubing clip valve |
| CN106870942A (en) * | 2017-02-27 | 2017-06-20 | 江苏爵格工业设备有限公司 | A kind of pipe pressure type flame proof valve |
| CN107420579A (en) * | 2017-06-08 | 2017-12-01 | 江苏远洋阀门智控股份有限公司 | A kind of screw thread type pneumatic tube pinch valve |
| CN107575601A (en) * | 2017-08-23 | 2018-01-12 | 上海泽宁环保科技有限公司 | A kind of negative pressure source power vacuum valve element, sealing device and interface valve |
| CN208169585U (en) * | 2018-04-04 | 2018-11-30 | 江苏爵格工业设备有限公司 | Active pipe pressure type flame proof valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586779A (en) * | 2021-08-17 | 2021-11-02 | 郑州中泰安科粉体科技有限公司 | Active two-way explosion-proof valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108331939B (en) | 2024-03-22 |
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