CN103785123A - Explosion energy-absorbing fire-extinguishing device - Google Patents
Explosion energy-absorbing fire-extinguishing device Download PDFInfo
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- CN103785123A CN103785123A CN201210429962.XA CN201210429962A CN103785123A CN 103785123 A CN103785123 A CN 103785123A CN 201210429962 A CN201210429962 A CN 201210429962A CN 103785123 A CN103785123 A CN 103785123A
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Abstract
The invention relates to an explosion energy-absorbing fire-extinguishing device which comprises a low pressure cavity; a panel which is fragile due to the influence of environment pressure change is inlayed at a sealing part of the low pressure cavity; the inner wall of the low pressure cavity is coated with a wave-absorbing energy-absorbing layer; a fire-extinguishing device is disposed inside the low pressure cavity; the fire-extinguishing device is provided with fire extinguishing agents; a trigger switch of the fire-extinguishing device is linked with the fragile panel. According to the invention, fire extinguishing agents is additionally disposed in the low pressure cavity, which improves the fire extinguishing efficiency and fire extinguishing speed; meanwhile, the inner wall of the low pressure cavity is coated with a wave-absorbing energy-absorbing layer; once explosion occurs, the wave-absorbing energy-absorbing layer has the effects of wave absorption and energy absorption, which can effectively prevent the explosion disaster from further extension, and thus greatly reduce casualties and property loss caused by the explosion disaster.
Description
Technical field
The present invention relates to a kind of blast energy-absorbing extinguishing device, be particularly useful for the mine laneway that exists potential safety hazard inflammable and explosive, be also applicable to the place that other restricted clearance combustible explosion dangers exist.
Background technology
According to document and media report, casualties and property loss that the whole world causes because combustible explodes are very huge.In China, coal mine gas, coal-dust explosion happen occasionally, and its catastrophic consequence is very serious.For addressing this problem, in coal production process, extensively adopt the explosion isolation camp facilities such as tank, water bag and stone-dust barrier, belong to passive type explosion isolation device, respectively using water and rock dust as blast reducer.Blast reducer requires matter a large amount foot, and when action, necessary atomization is abundant.The triggering of explosion isolation camp action and the spraying of blast reducer are all that the forerunner's pressure wave being produced by gas, coal-dust explosion completes.In the time there is gas, coal-dust explosion, before explosive flame arrives explosion isolation camp district, forerunner's pressure wave that blast produces is thrown and is held the plank of rock dust or make tank, water bag fragmentation, inert dust or the water smoke of the state of flying upward is filled the air in formation, in tunnel, form the inhibition zone of stamping out the flames, play heat absorption, cooling, fire-retardant effect, gas and dust explosion flame be limited near quick-fried source, thus reach cut off detonation propagation, restriction Accidents Disasters scope continues the object expanding.The precondition of coal mine flame-proof canopy performance flame proof effect has two: the one, and forerunner's pressure wave energy explosion isolation camp of throwing, forms rock dust or the water smoke band of suspended state; The 2nd, the time of explosive flame hysteresis forerunner pressure wave arrival explosion isolation camp is greater than process actuation time of explosion isolation camp, is less than again the actuation time of explosion isolation camp and the duration sum of water smoke or rock dust simultaneously.
Find by a large amount of investigation and analysis, the resistance such as fluid barrier and stone-dust barrier explosion isolation device is playing a role aspect control gas explosion disaster, but generally also can come with some shortcomings while use, there is the situation of failure of apparatus, and the cost compare costliness of the Explosion suppressant having (machine hydrochlorate, carbonate and single ammonium phosphate etc.).The moisture of fluid barrier easily evaporates, lacks, need to often wash by water, change water, increase workman's workload and labour intensity, the exploiting field especially large at air quantity, temperature is high, in water, easily sneak into mine dust, cause fire extinguishing water smoke can not effectively cut off the propagation of explosive flame because of water shortage.Water bag canopy in stope drift active workings, should adopt the mode of easy unhook hanging by design code, but the multiplex iron wire of water bag canopy in practical application is fastened and is hung on capplce, make isolated blast establishment atomization in the time of action of this passive form further insufficient, greatly reduce the effect of flame proof.Down-hole wet environment can make rock dust moisture absorption caking dry in stone-dust barrier, reduces, even loses explosion insulation performance after the action of stone-dust barrier isolated blast establishment.In the time of the inertia sample analysis chemical examination to rock dust, if find, combustible content exceedes design code, must change rock dust, and this has increased difficulty to Technical Management Work.If the operating pressure of resistance explosion isolation device is too low, be that sensitivity is too high, before flame, the lower impulsive force of forerunner's pressure wave can make to hinder explosion isolation device and starts action at a distance, before arriving, flame just discharges inhibitor, like this in the time that flame arrives the quick-fried setting position of obstruct, because inhibitor is discharged in advance, and because Action of Gravity Field major part has sunk to the base plate in tunnel, be only left to be suspended in the lower inhibitor of concentration in space.Although the methane gas that contains inhibitor may exceed explosion limit, but because explosive flame has higher cohesive force and good globality, flame still may be under the promotion of huge explosion product pressure, also ignite methane gas above and continue to propagate forward through this region, resistance explosion isolation device does not have the quick-fried effect that intercepts.If resistance explosion isolation device does not have the quick-fried effect that intercepts.If the operating pressure of resistance explosion isolation device is higher than the pressure of forerunner's pressure wave, or the action of resistance explosion isolation device has exceeded flame time delay and has arrived the required time of device, the inhibitor of its release will drop to flame zone rear portion, after even dropping on flame zone, do not receive that the flame front portion of inhibitor impact will continue to propagate forward, resistance explosion isolation device does not have the quick-fried effect that intercepts yet.
Summary of the invention
The object of the invention is to overcome the defect that prior art exists, provide a kind of simple in structure, cost is low, easy to use, has practicality widely, and intercepts the blast energy-absorbing extinguishing device of quick-fried successful.
The technical scheme that realizes the object of the invention is: a kind of blast energy-absorbing extinguishing device, has a low pressure cavity; The sealing part of described low pressure cavity is inlayed and is provided with the frangible face that affected by ambient pressure variations, is covered with and inhales ripple absorbing energy layer on the inwall of low pressure cavity; Described low pressure inside cavity is provided with extinguishing device; In described extinguishing device, there is extinguishing chemical, the touch switch of extinguishing device and frangible face interlock.
Described in technique scheme, extinguishing device is arranged in the top inner wall of low pressure cavity.
Described in technique scheme, inhaling ripple absorbing energy layer is asbestos layer.
Described in technique scheme, frangible face is glass or pottery.
Described in technique scheme, frangible face is curved.
Described in technique scheme, extinguishing chemical is difluorochlobromo-methane extinguishing chemical.
Adopt after technique scheme, the present invention has following positive effect:
(1) the present invention sets up extinguishing chemical in low pressure inside cavity, has improved fire-fighting efficiency and blow-off velocity; Meanwhile, on the inwall of low pressure cavity, be covered with and inhale ripple absorbing energy layer; Once blast, can reach the effect of inhaling ripple energy-absorbing, the further expansion of explosion disaster be can effectively avoid, thereby casualties and property loss that explosion disaster causes reduced widely.
(2) in low pressure cavity of the present invention, be that negative pressure approaches vacuum, in the time that frangible face is broken, pressure in mine laneway declines suddenly, and expanding gas and explosion energy that absorption that just can be a large amount of blast produces suppress the spread speed of explosion wave and explosive flame to greatest extent, explosive flame is extinguished, intercept quick-fried successful, and apparatus structure is simple, cost is low, easy to use, there is practicality widely.
Accompanying drawing explanation
For content of the present invention is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein below
Fig. 1 is structural representation of the present invention;
Fig. 2 is the cutaway view of A-A direction in Fig. 1;
1. low pressure cavitys in figure, 2. frangible face, 3. inhales ripple absorbing energy layer, 4. extinguishing device.
The specific embodiment
(embodiment 1)
See Fig. 1 and Fig. 2, the present invention has a low pressure cavity 1; The sealing part of low pressure cavity 1 is inlayed and is provided with the frangible face 2 that is subject to the arc that ambient pressure variations affects, and is covered with and inhales ripple absorbing energy layer 3 on the inwall of low pressure cavity, and inhaling ripple absorbing energy layer 3 is asbestos layer; Low pressure cavity 1 top is provided with extinguishing device 4; In extinguishing device 4, have difluorochlobromo-methane extinguishing chemical, the touch switch of extinguishing device 4 and frangible face 2 link.Frangible face 2 is the friable material such as glass or pottery.
Operation principle of the present invention is: this device is preset in the tunnel of the inflammable and explosive section of mine or blast suspicion thing side, in the time that combustible is blasted, receive explosion wave once be preset in the low pressure cavity 1 of explosion scene, the frangible face 2 of low pressure cavity 1 is at once cracked, the expanding gas that blast is produced, explosion wave, explosive flames etc. suck in low pressure cavity 1, owing to being that negative pressure approaches vacuum in low pressure cavity 1, just expanding gas and explosion energy that absorption blast that can be a large amount of produces, suppress to greatest extent the spread speed of explosion wave and explosive flame, the positioned inside fire-fighting efficiency of low pressure cavity 1 is high simultaneously, the difluorochlobromo-methane extinguishing chemical that blow-off velocity is fast, can effectively avoid the further expansion of explosion disaster, thereby reduce widely casualties and property loss that explosion disaster causes.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a blast energy-absorbing extinguishing device, has a low pressure cavity (1); The sealing part of described low pressure cavity (1) is inlayed and is provided with the frangible face (2) that affected by ambient pressure variations, is covered with and inhales ripple absorbing energy layer (3) on the inwall of low pressure cavity; It is characterized in that: described low pressure cavity (1) inside is provided with extinguishing device (4); Described extinguishing device has extinguishing chemical in (4), the touch switch of extinguishing device (4) and frangible face (2) interlock.
2. blast energy-absorbing extinguishing device according to claim 1, is characterized in that: described extinguishing device (4) is arranged in the top inner wall of low pressure cavity (1).
3. blast energy-absorbing extinguishing device according to claim 1, is characterized in that: described suction ripple absorbing energy layer (3) is asbestos layer.
4. blast energy-absorbing extinguishing device according to claim 1 and 2, is characterized in that: described frangible face (2) is glass or pottery.
5. blast energy-absorbing extinguishing device according to claim 4, is characterized in that: described frangible face (2) is curved.
6. blast energy-absorbing extinguishing device according to claim 1, is characterized in that: described extinguishing chemical is difluorochlobromo-methane extinguishing chemical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210429962.XA CN103785123A (en) | 2012-10-31 | 2012-10-31 | Explosion energy-absorbing fire-extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210429962.XA CN103785123A (en) | 2012-10-31 | 2012-10-31 | Explosion energy-absorbing fire-extinguishing device |
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| Publication Number | Publication Date |
|---|---|
| CN103785123A true CN103785123A (en) | 2014-05-14 |
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| CN201210429962.XA Pending CN103785123A (en) | 2012-10-31 | 2012-10-31 | Explosion energy-absorbing fire-extinguishing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482412A (en) * | 2014-11-26 | 2015-04-01 | 中国矿业大学 | Gas flame capturing and extinguishing device |
| CN113578047A (en) * | 2021-08-30 | 2021-11-02 | 中国矿业大学 | Method for rapidly eliminating carbon monoxide toxic products generated by explosion in long and narrow limited space |
-
2012
- 2012-10-31 CN CN201210429962.XA patent/CN103785123A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482412A (en) * | 2014-11-26 | 2015-04-01 | 中国矿业大学 | Gas flame capturing and extinguishing device |
| CN104482412B (en) * | 2014-11-26 | 2017-06-23 | 中国矿业大学 | A kind of gas flame capture and extinguishing means |
| CN113578047A (en) * | 2021-08-30 | 2021-11-02 | 中国矿业大学 | Method for rapidly eliminating carbon monoxide toxic products generated by explosion in long and narrow limited space |
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Application publication date: 20140514 |