CN208311588U - The synergistic formula nonflame explosion venting device of series connection - Google Patents
The synergistic formula nonflame explosion venting device of series connection Download PDFInfo
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- CN208311588U CN208311588U CN201820613957.7U CN201820613957U CN208311588U CN 208311588 U CN208311588 U CN 208311588U CN 201820613957 U CN201820613957 U CN 201820613957U CN 208311588 U CN208311588 U CN 208311588U
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- rupture disk
- valve body
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- negative pressure
- cavity
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Abstract
The utility model discloses a kind of synergistic formula nonflame explosion venting devices of series connection, including being equipped with the valve body of inner cavity, the inflow tube and effluent conduit being located on valve body, inflow tube and effluent conduit are respectively provided at the both ends of valve body and are connected to the inner cavity of valve body, the first rupture disk is equipped in inflow tube, the second rupture disk is equipped in effluent conduit, the first rupture disk, the inner wall of valve body and the second rupture disk surround closed negative pressure cavity.The utility model has the advantages that the low pressure and Hypoxic habitats in negative pressure cavity make fray-out of flame.The fire extinguishing element of porous structure can further obstruct residual flame propagation.Explosion suppressant is diluted to possible few residual flame or elimination reaction free radical, to realize the thorough barrier of flame propagation, achievees the purpose that synergy.When vacuum meter detects the air pressure appearance exception of negative pressure cavity, minimum negative pressure requirements are unsatisfactory for, can judge whether that needing to start vacuum pump and solenoid valve carries out negative pressure holding by computer.The utility model relates to antiknock device fields.
Description
Technical field
The utility model relates to antiknock device fields, in particular to synergistic formula nonflame explosion venting device of connecting.
Background technique
In the prior art, general nonflame elongnated building device passes through heattransfer effect by the pressure releases back-fire relief element such as net metal
Realize nonflame elongnated building.Its technological deficiency is: due to different inflammable-explosive object qualitative attributions and the difference of explosive characteristic parameter,
There are complex working conditions such as combustible gas mixture, gas/powder mixture or a variety of dust mixtures even in explosion environment, and it is existing
Pressure release back-fire relief element haves the defects that heat transfer efficiency is lower and pore-size machining accuracy is not high, leads to existing nonflame venting of dust explosion
Device can not thoroughly prevent to propagate in interior environment of the explosive flame by enclosing backpack body or pipeline, can so as to cause outside
The subsequent explosion for firing environment, even more serious destruction and damage is caused to large number of equipment and personnel, and can not remote real-time monitoring
Whether explosion venting valve is in normal working condition, and there are biggish security risks.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of synergistic formula nonflame explosion venting devices of series connection, can lead to
Negative pressure cavity and fire extinguishing element barrier explosion conduction are crossed, and it is reliable to improve it remotely can to monitor and adjust the air pressure in negative pressure cavity
Property.
Used technical solution to solve above-mentioned technical problem: a kind of synergistic formula nonflame explosion venting device of series connection, packet
The valve body equipped with inner cavity, the inflow tube and effluent conduit being located on valve body are included, inflow tube and effluent conduit are respectively provided at valve
The both ends of body are simultaneously connected to the inner cavity of valve body, and the first rupture disk is equipped in inflow tube, is equipped with the second rupture disk in effluent conduit,
First rupture disk, the inner wall of valve body and the second rupture disk surround closed negative pressure cavity.
As an improvement, the material of the first rupture disk and the second rupture disk is with against corrosion, creep resistant and stable mechanical property
Metal or plastic film material.
As an improvement, thickness of the thickness of the first rupture disk less than the second rupture disk.
As an improvement, inflow tube and effluent conduit respectively include the pipe fitting being connected with valve body and are located at pipe fitting one end
Tube body, the end of pipe fitting is equipped with first flange, and one end of tube body is equipped with second flange, between first flange and second flange
It is bolted, the first rupture disk and the second rupture disk are fixed between first flange and second flange respectively.
As an improvement, being respectively equipped with seal washer between the first rupture disk and first flange and second flange, bolt is passed through
First flange, second flange and the first rupture disk simultaneously make it compress seal washer, the second rupture disk and first flange and the second method
Seal washer is respectively equipped between orchid, bolt passes through first flange, second flange and the second rupture disk and it is made to compress gasket
Circle.
As an improvement, valve body is spherical shell shape.
As an improvement, valve body is externally provided with the vacuum meter being connected to negative pressure cavity, valve body is externally provided with the vacuum being connected to negative pressure cavity
Pump is equipped with the solenoid valve of the on-off of the pipeline between control vacuum pump and negative pressure cavity between valve body and vacuum pump.
As an improvement, vacuum meter, solenoid valve and vacuum pump are connect with computer respectively.
As an improvement, being equipped with netted fire extinguishing element in valve body, the edge for element of putting out a fire is close to the inner wall of valve body and will be born
Pressure chamber, which is divided into, to be connected to the first cavity and the second cavity, the first cavity with inflow tube, and the second cavity is connected to effluent conduit,
Element of putting out a fire is equipped with several through-holes of connection the first cavity and the second cavity.
As an improvement, being equipped with third rupture disk between the second rupture disk and the nozzle of effluent conduit, third rupture disk goes out to flow
The tube wall of pipeline and the second rupture disk surround closed datonation-inhibition chamber, datonation-inhibition intracavitary filled with Explosion suppressant.
The utility model has the advantages that when explosion happens, flame impacts the first rupture disk first and makes its rupture, and flame is inhaled into negative
Press intracavitary, low pressure and Hypoxic habitats in negative pressure cavity make wholly or largely fray-out of flame.The fire extinguishing element of porous structure can
Further barrier residual flame is propagated.Explosion suppressant is diluted to possible few residual flame or elimination reaction free radical, from
And realize the thorough barrier of flame propagation, achieve the purpose that synergy.Vacuum meter, solenoid valve and vacuum pump respectively with computer
Connection.When vacuum meter detects the air pressure appearance exception of negative pressure cavity, minimum negative pressure requirements are unsatisfactory for, can be judged by computer
Whether need to start vacuum pump and solenoid valve carries out negative pressure holding.
Detailed description of the invention
The utility model is described further with reference to the accompanying drawing:
Fig. 1 is the structural schematic diagram of the utility model embodiment 1；
Fig. 2 is the structural schematic diagram of the utility model embodiment 2；
The noun and label that embodiment and Figure of description are related to include: valve body 1, inflow tube 2, effluent conduit 3, first
Rupture disk 4, the second rupture disk 5, negative pressure cavity 6, pipe fitting 7, tube body 8, first flange 9, second flange 10, vacuum meter 11, vacuum
Pump 12, solenoid valve 13, computer 14, fire extinguishing element 15, third rupture disk 16, Explosion suppressant 17.
Specific embodiment
Embodiment 1:
Referring to Fig.1, the synergistic formula nonflame explosion venting device of a kind of series connection, including being equipped with the valve body 1 of inner cavity, being located at valve body 1
On inflow tube 2 and effluent conduit 3, inflow tube 2 and effluent conduit 3 be respectively provided at the both ends of valve body 1 and in valve body 1
Chamber connection is equipped with the first rupture disk 4, is equipped with the second explosion in effluent conduit 3 to make to realize nonflame venting of dust explosion in inflow tube 2
Piece 5, the first rupture disk 4, the inner wall of valve body 1 and the second rupture disk 5 surround closed negative pressure cavity 6.In working condition, it will become a mandarin
Pipeline 2 is connected in the container for needing venting of dust explosion, and negative pressure cavity 6 is vacuumized.When explosion happens, flame impacts the first explosion first
Piece 4 simultaneously makes its rupture, and flame is inhaled into negative pressure cavity 6 and is completely eliminated.In order to make the first rupture disk 4 and the second rupture disk
5 are easily broken to promote nonflame venting of dust explosion effect, the material of the first rupture disk 4 and the second rupture disk 5 be with against corrosion, creep resistant and
The metal or plastic film material of stable mechanical property.
In order to further enhance nonflame venting of dust explosion effect, the thickness of the first rupture disk 4 makes less than the thickness of the second rupture disk 5
First rupture disk 4 is easier to rupture, and flame is easier to be inhaled into negative pressure cavity 6 to extinguish or weaken when explosion occurs.
In order to make the first rupture disk 4 and the second rupture disk 5 convenient for assembly and disassembly and replacement, inflow tube 2 and effluent conduit 3 respectively includes and valve
The connected pipe fitting 7 of body 1 and the tube body 8 for being located at 7 one end of pipe fitting, the end of pipe fitting 7 are equipped with the first flange of outwardly convex
9, one end of tube body 8 is equipped with the second flange 10 of outwardly convex, is bolted between first flange 9 and second flange 10,
First rupture disk 4 and the second rupture disk 5 are fixed on respectively between first flange 9 and second flange 10.In order to make the first explosion
There is good air-tightness between piece 4 and the second rupture disk 5 and the other components of synergistic formula nonflame explosion venting device of connecting, first
Seal washer is respectively equipped between rupture disk 4 and first flange 9 and second flange 10, bolt passes through first flange 9, second flange
10 and first rupture disk 4 and make its compress seal washer, between the second rupture disk 5 and first flange 9 and second flange 10 respectively
Equipped with seal washer, bolt passes through first flange 9, second flange 10 and the second rupture disk 5 and it is made to compress seal washer.In order to
It prevents flame from occurring accelerating to propagate even deflagration to detonation transition phenomenon occur, the spherical shell of 2 radius of inflow tube is much larger than using radius
Shape valve body 1 slows down rate of pressure rise when burning gases propagate to negative pressure cavity 6 using diffraction Undercrowding Effect.
In order to realize the air pressure for monitoring the working condition for synergistic formula nonflame explosion venting device of connecting and controlling negative pressure cavity 6,
Valve body 1 is externally provided with the vacuum meter 11 being connected to negative pressure cavity 6, and valve body 1 is externally provided with the vacuum pump 12 being connected to negative pressure cavity 6, valve body 1 with
The solenoid valve 13 of the on-off of the pipeline between control vacuum pump 12 and negative pressure cavity 6 is equipped between vacuum pump 12.Vacuum meter 11 can be shown
Show the air pressure in negative pressure cavity 6, be conducive to situation about monitoring in valve body 1 and its air pressure is avoided to occur abnormal and series connection collaboration is caused to increase
The failure of effect formula nonflame explosion venting device.Air pressure in 13 adjustable negative pressure chamber 6 of vacuum pump 12 and solenoid valve, keeps it in optimal
Working condition.In order to realize long-range monitoring connect synergistic formula nonflame explosion venting device working condition and remotely control negative pressure cavity
6 air pressure, vacuum meter 11, solenoid valve 13 and vacuum pump 12 are connect with computer 14 respectively.When vacuum meter 11 detects negative pressure cavity 6
When interior air pressure occurs abnormal, the working condition of vacuum pump 12 and solenoid valve 13 is adjusted in computer 14, makes the gas in negative pressure cavity 6
Pressure is kept constant, and the synergistic formula nonflame explosion venting device that makes to connect remains in reliable state.
In order to further improve nonflame venting of dust explosion effect, it is equipped with netted fire extinguishing element 15 in valve body 1, the side for element 15 of putting out a fire
Edge is close to the inner wall of valve body 1 and is divided into negative pressure cavity 6 connect with the first cavity and the second cavity, the first cavity and inflow tube 2
Logical, the second cavity be connected to effluent conduit 3, and fire extinguishing element 15, which is equipped with, to be connected to a large amount of of the first cavity and the second cavity and small lead to
Hole.When flame is by through-hole, big flame can be divided into lesser flame, and reticular structure is metal material, can absorb heat
Flame temperature is measured and reduced, can inhibit flame combustion, to reach extinguishing effect.In working condition, inflow tube 2 is connected
Into the container for needing venting of dust explosion, the pressure in negative pressure cavity 6 is controlled in negative 0.05MPa or less using vacuum pump 12.When in container
Explosion time occurs, the strong compressional wave of flame front acts on the first rupture disk 4 first and makes its rupture, and flame is inhaled into negative pressure
In chamber 6, the flame of combustible is wholly or largely extinguished in negative pressure and Hypoxic habitats, and element 15 of putting out a fire is to possible remnants
Flame further destroys extinguishing.
Embodiment 2:
Referring to Fig. 2, the present embodiment the difference from embodiment 1 is that: between the second rupture disk 5 and the nozzle of effluent conduit 3
Equipped with third rupture disk 16, third rupture disk 16, the tube wall of effluent conduit 3 and the second rupture disk 5 surround closed datonation-inhibition chamber, suppression
Filled with Explosion suppressant 17 in blast chamber.Explosion suppressant 17 in 17 fill pipe of Explosion suppressant possible few residual flame is diluted or
Elimination reaction free radical, tandem cooperative gain mechanism ensure the thorough barrier of flame propagation.
The embodiments of the present invention is explained in detail above in conjunction with attached drawing, but the utility model is not limited to
State embodiment, technical field those of ordinary skill within the scope of knowledge, can also do not depart from it is practical
Various changes can be made under the premise of novel objective.
Claims (10)
1. a kind of synergistic formula nonflame explosion venting device of series connection, it is characterised in that: including being equipped with the valve body of inner cavity, being located on valve body
Inflow tube and effluent conduit, inflow tube and effluent conduit be respectively provided at the both ends of valve body and be connected to the inner cavity of valve body,
It is equipped with the first rupture disk in inflow tube, is equipped with the second rupture disk, the first rupture disk, the inner wall of valve body and second in effluent conduit
Rupture disk surrounds closed negative pressure cavity.
2. the synergistic formula nonflame explosion venting device of series connection according to claim 1, it is characterised in that: first rupture disk
Material with the second rupture disk is metal or plastic film material with against corrosion, creep resistant and stable mechanical property.
3. the synergistic formula nonflame explosion venting device of series connection according to claim 1, it is characterised in that: first rupture disk
Thickness less than the second rupture disk thickness.
4. the synergistic formula nonflame explosion venting device of series connection according to claim 1, it is characterised in that: the inflow tube and
Effluent conduit respectively includes the pipe fitting being connected with valve body and is located at the tube body of pipe fitting one end, and the end of pipe fitting is equipped with first
One end of flange, tube body is equipped with second flange, is bolted between first flange and second flange, first rupture disk
And second rupture disk be fixed between first flange and second flange respectively.
5. the synergistic formula nonflame explosion venting device of series connection according to claim 4, it is characterised in that: first rupture disk
Seal washer is respectively equipped between first flange and second flange, the bolt passes through first flange, second flange and first
Rupture disk simultaneously makes it compress seal washer, is respectively equipped with gasket between second rupture disk and first flange and second flange
Circle, the bolt pass through first flange, second flange and the second rupture disk and it are made to compress seal washer.
6. the synergistic formula nonflame explosion venting device of series connection according to claim 1, it is characterised in that: the valve body is spherical shell
Shape.
7. the synergistic formula nonflame explosion venting device of series connection according to claim 1, it is characterised in that: the valve body is externally provided with
The vacuum meter being connected to negative pressure cavity, valve body are externally provided with the vacuum pump being connected to negative pressure cavity, and control is equipped between valve body and vacuum pump
The solenoid valve of the on-off of pipeline between vacuum pump and negative pressure cavity.
8. the synergistic formula nonflame explosion venting device of series connection according to claim 7, it is characterised in that: the vacuum meter, electricity
Magnet valve and vacuum pump are connect with computer respectively.
9. the synergistic formula nonflame explosion venting device of series connection according to claim 1, it is characterised in that: be equipped in the valve body
Netted fire extinguishing element, the edge of element of putting out a fire are close to the inner wall of valve body and are divided into the negative pressure cavity and the first cavity and the
Two cavitys, the first cavity are connected to inflow tube, and the second cavity is connected to effluent conduit, and fire extinguishing element is equipped with the first chamber of connection
Several through-holes of body and the second cavity.
10. the synergistic formula nonflame explosion venting device of series connection according to claim 1, it is characterised in that: second explosion
Third rupture disk is equipped between piece and the nozzle of effluent conduit, third rupture disk, the tube wall of effluent conduit and the second rupture disk enclose
It is datonation-inhibition intracavitary filled with Explosion suppressant at closed datonation-inhibition chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820613957.7U CN208311588U (en) | 2018-04-26 | 2018-04-26 | The synergistic formula nonflame explosion venting device of series connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820613957.7U CN208311588U (en) | 2018-04-26 | 2018-04-26 | The synergistic formula nonflame explosion venting device of series connection |
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| Publication Number | Publication Date |
|---|---|
| CN208311588U true CN208311588U (en) | 2019-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820613957.7U Active CN208311588U (en) | 2018-04-26 | 2018-04-26 | The synergistic formula nonflame explosion venting device of series connection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426071A (en) * | 2018-04-26 | 2018-08-21 | 广州特种机电设备检测研究院 | The synergistic formula nonflame explosion venting device of series connection |
-
2018
- 2018-04-26 CN CN201820613957.7U patent/CN208311588U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426071A (en) * | 2018-04-26 | 2018-08-21 | 广州特种机电设备检测研究院 | The synergistic formula nonflame explosion venting device of series connection |
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