CN106267630A - Powder jet fire extinguisher is with non-pressure storage type low temperature gas generator - Google Patents
Powder jet fire extinguisher is with non-pressure storage type low temperature gas generator Download PDFInfo
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- CN106267630A CN106267630A CN201510550576.XA CN201510550576A CN106267630A CN 106267630 A CN106267630 A CN 106267630A CN 201510550576 A CN201510550576 A CN 201510550576A CN 106267630 A CN106267630 A CN 106267630A
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- gas generator
- gallbladder
- assembly
- inner bag
- fire extinguisher
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Abstract
The present invention is the non-pressure storage type low temperature gas generator of powder jet fire extinguisher in a kind of fire-fighting device of explosion suppression field.It is made up of with black box and startup assembly gallbladder body assembly, base, the outer gallbladder of gallbladder body assembly is provided with Laval nozzle formula steam vent, is provided with irreversible water absorption anti-blushing agent between outer gallbladder and inner bag, and base is connected outer gallbladder and inner bag with black box；Base and the buckling sealing gasket of employing gallbladder body plug crush seal plug mode in black box.Starting the gas generator propellant arranged in the inner bag of assembly is a kind of low form solid gas propellant, and the trigger starting assembly uses center Starting mode.The mode that it utilizes trigger jet direct projection low form solid gas propellant and powder jet fire extinguisher to spray ultra-fine dry powder firing-fighting medium realizes quick extinguishing, it is achieved the instantaneous suppression quick-fried to flash burn and sudden strain of a muscle.The present invention has the advantages such as startability is reliable, lag phase is short, chemical reaction temperature is low in triggering, one-tenth gas performance is higher, release nontoxic, the trigger instantaneous trigger of gas.
Description
Technical field
The present invention is the non-pressure storage type low temperature gas generator of powder jet fire extinguisher in a kind of fire-fighting device of explosion suppression field.
Background technology
In mine working operation and combustion gas storage and transport process, generally having the ambiances such as gas, liquefied gas, oil gas, natural gas, the fire-fighting device of explosion suppression such as powder jet fire extinguisher is its important configuration.Traditional powder jet fire extinguisher uses firing-fighting medium suppression to fire, i.e. using datonation-inhibition mode of dusting to suppress the flash burn of fuel gas and to dodge quick-fried, this just proposes the highest performance requirement to the explosion suppression device that dusts at aspects such as response time, operating temperature, sprinkling dynamics, spray rate and extinguishing effect.In prior art, there is following defect in the generator of the datonation-inhibition dusting device of separate unit and adapted thereof: (1) fire extinguishing response time is longer: in gas, liquefied gas, oil gas, natural gas environment, the flash burn of fuel gas and sudden strain of a muscle quick-fried time only have 30ms～200ms, fire extinguishing response time exceedes this scope, it is clear that lose effectiveness of explosion suppression.(2) working media temperature is higher: firing-fighting medium is usually ultra-fine dry powder extinguishing agent, and its operating temperature is higher than 90 DEG C, easily works the mischief personnel and environment.(3) spraying efficiency is not enough: no matter storing up and whether press, its common drawback is: sprays and is short of power, and spray rate is relatively slow, and extinguishing effect is not good enough.
Summary of the invention
The invention aims to provide a kind of non-pressure storage type low temperature gas generator of powder jet fire extinguisher, it can accelerate response time of putting out a fire effectively, reliably reduces working media temperature, is greatly enhanced fire extinguishing spraying efficiency.
The technical scheme is that
Design the non-pressure storage type low temperature gas generator of a kind of powder jet fire extinguisher, it is made up of with black box and startup assembly gallbladder body assembly, base, it is characterized in that: in gallbladder body assembly, it is provided with steam vent on outer gallbladder, being provided with anti-blushing agent between outer gallbladder and inner bag, base is connected outer gallbladder and inner bag with black box；Base and black box are provided with gallbladder body plug and seal plug；Starting assembly and be provided with gas generator propellant and trigger, gas generator propellant is arranged among inner bag.
The outer gallbladder the highest pressure-bearing of design is up to 60MPa, and the steam vent that outer gallbladder is arranged is Laval nozzle formula structure；In inner bag, inner bladder cover being provided with the aperture of some and diameter, inner bladder cover is that adjustable screw threads for fastening is connected with internal container cylinder.
The anti-blushing agent arranged between outer gallbladder and inner bag is irreversible water absorption anti-blushing agent, and described anti-blushing agent can absorb the moisture content in outer gallbladder, to keep dry environment and the initial performance of gas generator propellant of gallbladder body assembly.The gallbladder body plug arranged in base and black box and seal plug define the buckling sealing gasket of gallbladder body plug crush seal plug.Starting in assembly, the gas generator propellant arranged in inner bag is a kind of low form solid gas propellant, and the trigger starting assembly setting uses center Starting mode.
The method have the benefit that: owing to the outer gallbladder the highest pressure-bearing of design is up to 60MPa, the steam vent that outer gallbladder is arranged is Laval nozzle formula structure, thus improves the bearing capacity of gallbladder body, optimizes the exhaust effect of outer gallbladder upper air-vent.Simultaneously because the gallbladder body plug arranged in base and black box and seal plug define the buckling sealing gasket of gallbladder body plug crush seal plug, thus improve bearing capacity and the sealing effectiveness of gallbladder body.Have employed low form solid gas propellant and center startup formula trigger additionally, due to starting assembly, thus have the advantage that startability is reliable, lag phase is short, chemical reaction temperature is low in triggering, one-tenth gas performance is higher, release gas is nontoxic, trigger instantaneous trigger.
Accompanying drawing explanation
Fig. 1 is described gas generator structural representation；
Fig. 2 is described gas generator inner bag schematic diagram；
Fig. 3 is the assembling schematic diagram of described gas generator and powder jet fire extinguisher.
In figure, 1. gallbladder body assembly, 2. base and black box, 3. start assembly, outer gallbladder, 5. inner bag, 6. steam vent, 7. anti-blushing agent, 8. inner bladder cover, 9. internal container cylinder, 10. base, 11. gallbladder body plugs, 12. seal plugs, 13. sealing rings, 14. gas generator propellants, 15. triggers, 16. powder jet fire extinguishers, 17. fire extinguisher housings, 18. fire extinguisher nozzle parts.
Detailed description of the invention
The embodiment provided below by accompanying drawing divides three parts, and the invention will be further described.
Part I, structure forms.
Described gas generator includes: gallbladder body assembly (1), base and black box (2), starts assembly (3)；
Gallbladder body assembly (1) including: outer gallbladder (4), inner bag (5), steam vent (6), anti-blushing agent (7), inner bladder cover (8), internal container cylinder (9)；
Base including with black box (2): base (10), gallbladder body plug (11), seal plug (12), sealing gasket (13)；
Start assembly (3) to include: gas generator propellant (14), trigger (15).
Powder jet fire extinguisher (16) including: fire extinguisher housing (17), fire extinguisher nozzle parts (18).
Part II, the construction features of described gas generator.
In gallbladder body assembly (1), anti-blushing agent (7) owing to arranging between outer gallbladder (4) and inner bag (5) is irreversible water absorption anti-blushing agent, anti-blushing agent (7) can absorb the moisture content in outer gallbladder (4), and the moisture content absorbed will not discharge during normal temperature storage, to keep dry environment and the initial performance of gas generator propellant (14) of gallbladder body assembly (1), thus gallbladder body assembly (1) of described generator is in suitable environment state.
Outer gallbladder (4) designs the highest pressure-bearing up to 60MPa, the upper steam vent (6) arranged of outer gallbladder (4) is Laval nozzle formula structure, and the design of described steam vent (6) is to develop with the Laval nozzle of diffuser based on the band converging portion used by solid propellant rocket, straightway.Described steam vent (6) structure can ensure spray effect effectively, and the instantaneous pressure gas produced in making outer gallbladder (4) and inner bag (5) cavity through expanding, lowering the temperature, speed-raising process reaches optimum degree.Steam vent (6) double difference is towards axially becoming different angle from outer gallbladder, and during powder jet fire extinguisher work, the container inner bottom position of firing-fighting medium does not remain dead angle.
The aperture of some and diameter it is provided with, the gas release being beneficial in inner bag (5) on inner bladder cover (8)；Inner bladder cover (8) is that adjustable screw threads for fastening is connected with internal container cylinder (9), to adapt to the change of gas generator propellant (14) explosive payload in inner bag (5).
In base and black box (2), gallbladder body plug (11) and seal plug (12) define the buckling sealing gasket of gallbladder body plug (11) crush seal plug (12), the highest pressure-bearing of this sealing means reaches 60MPa, inner bag (5) can be made to bear the instantaneous pressure after low form gas generator propellant (14) triggers, to ensure reliability and the safety of described generator.
Start in assembly (3), the gas generator propellant (14) arranged in inner bag (5) is a kind of low form solid gas propellant (14), and described gas generator propellant (14) develops based on solid rocket propellant technology.Starting trigger (15) the employing center Starting mode that assembly (3) is arranged, described trigger (15) develops based on solid propellant rocket lighter.Start trigger (15) the employing center Starting mode that assembly (3) is arranged, described trigger (15) jet can be emitted directly toward low form solid gas propellant (14) center, the Starting mode bloomed with center, makes gas generator propellant (14) moment trigger comprehensively.
Start in assembly (3), the gas generator propellant (14) arranged in inner bag (5) is a kind of low form solid gas propellant (14), described gas generator propellant (14) develops based on solid rocket propellant technology, its advantage is: trigger the response time of chemical reaction, i.e. triggers short only 1ms～2ms of lag phase；Chemical reaction temperature is low, can guarantee that working media temperature is less than 60 DEG C；Become gas better performances, become tolerance to reach 1100L/kg；Release gas is nontoxic, and its major gaseous component is CO2、H2O、N2, HCl etc..
Datonation-inhibition process after Part III, described gas generator and powder jet fire extinguisher configuration.
Described gas generator is configured with powder jet fire extinguisher (16).When flash burn will occur and dodge quick-fried, trigger (15) starts, and described trigger (15) jet is emitted directly toward low form solid gas propellant (14) center, gas generator propellant (14) instantaneous trigger.Gas generator propellant (14) produces gases at high pressure after triggering, gases at high pressure promote the ultra-fine dry powder firing-fighting medium in powder jet fire extinguisher (16).Powder jet fire extinguisher (16) sprays ultra-fine dry powder firing-fighting medium.Ultra-fine dry powder firing-fighting medium jet length reaches 15m～20m, and covering coning angle is 120, and the temperature of the ultra-fine dry powder firing-fighting medium sprayed is close to room temperature, sprinkling kinetic energy is powerful, diffusion rate is exceedingly fast, and can cover each corner in space, it is achieved combustion and explosion suppression function within the extremely short time.
Claims (5)
1. a powder jet fire extinguisher is with non-pressure storage type low temperature gas generator, it is made up of with black box (2) and startup assembly (3) gallbladder body assembly (1), base, it is characterized in that: in gallbladder body assembly (1), steam vent (6) it is provided with on outer gallbladder (4), being provided with anti-blushing agent (7) between outer gallbladder (4) and inner bag (5), base is connected outer gallbladder (4) and inner bag (5) with black box (2)；Base and black box (2) are provided with gallbladder body plug (11) and seal plug (12)；Starting assembly (3) and be provided with gas generator propellant (14) and trigger (15), gas generator propellant (14) is arranged among inner bag (5).
Powder jet fire extinguisher the most according to claim 1 is with non-pressure storage type low temperature gas generator, it is characterized in that: outer gallbladder (4) the highest pressure-bearing of design is up to 60MPa, and the upper steam vent (6) arranged of outer gallbladder (4) is Laval nozzle formula structure；In inner bag (5), inner bladder cover (8) being provided with the aperture of some and diameter, inner bladder cover (8) is that adjustable screw threads for fastening is connected with internal container cylinder (9).
Powder jet fire extinguisher the most according to claim 1 is with non-pressure storage type low temperature gas generator, it is characterized in that: the anti-blushing agent (7) arranged between outer gallbladder (4) and inner bag (5) is irreversible water absorption anti-blushing agent, described anti-blushing agent (7) can absorb the moisture content in outer gallbladder (4), to keep dry environment and the initial performance of gas generator propellant (14) of gallbladder body assembly (1).
Powder jet fire extinguisher the most according to claim 1, with non-pressure storage type low temperature gas generator, is characterized in that: base gallbladder body plug (11) that arrange middle with black box (2) and seal plug (12) define the buckling sealing gasket of gallbladder body plug (11) crush seal plug (12).
Fire-fighting device of explosion suppression the most according to claim 1 is with non-pressure storage type low temperature gas generator, it is characterized in that: start in assembly (3), the gas generator propellant (14) arranged in inner bag (5) is a kind of low form solid gas propellant, starts trigger (15) the employing center Starting mode that assembly (3) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510550576.XA CN106267630A (en) | 2015-09-01 | 2015-09-01 | Powder jet fire extinguisher is with non-pressure storage type low temperature gas generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510550576.XA CN106267630A (en) | 2015-09-01 | 2015-09-01 | Powder jet fire extinguisher is with non-pressure storage type low temperature gas generator |
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| CN106267630A true CN106267630A (en) | 2017-01-04 |
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| CN201510550576.XA Pending CN106267630A (en) | 2015-09-01 | 2015-09-01 | Powder jet fire extinguisher is with non-pressure storage type low temperature gas generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110772731A (en) * | 2019-10-12 | 2020-02-11 | 湖北航天化学技术研究所 | Non-pressure storage type fire extinguishing device |
| CN113990029A (en) * | 2021-10-27 | 2022-01-28 | 中国兵器装备集团上海电控研究所 | Reliable disaster-tolerant fire extinguishing and explosion suppression system |
Citations (3)
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| CN202315048U (en) * | 2011-09-23 | 2012-07-11 | 李民 | Automatic fire-extinguishing device |
| CN203315600U (en) * | 2013-06-19 | 2013-12-04 | 西安航天化学动力厂 | Automatic fire extinguisher |
| CN204034111U (en) * | 2014-07-28 | 2014-12-24 | 江苏钜熙矿用设备科技有限公司 | A kind of gas-producing explosion suppressor with leaking powder protected location |
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2015
- 2015-09-01 CN CN201510550576.XA patent/CN106267630A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202315048U (en) * | 2011-09-23 | 2012-07-11 | 李民 | Automatic fire-extinguishing device |
| CN203315600U (en) * | 2013-06-19 | 2013-12-04 | 西安航天化学动力厂 | Automatic fire extinguisher |
| CN204034111U (en) * | 2014-07-28 | 2014-12-24 | 江苏钜熙矿用设备科技有限公司 | A kind of gas-producing explosion suppressor with leaking powder protected location |
Non-Patent Citations (1)
| Title |
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| 陈慧雄: "《国内外打火机修理技术（第1版）》", 31 March 1993, 山东科学技术出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110772731A (en) * | 2019-10-12 | 2020-02-11 | 湖北航天化学技术研究所 | Non-pressure storage type fire extinguishing device |
| CN113990029A (en) * | 2021-10-27 | 2022-01-28 | 中国兵器装备集团上海电控研究所 | Reliable disaster-tolerant fire extinguishing and explosion suppression system |
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Application publication date: 20170104 |