CN105971658A - Bubble atomizing goaf gas-liquid two-phase flow fire prevention and extinguishing system - Google Patents
Bubble atomizing goaf gas-liquid two-phase flow fire prevention and extinguishing system Download PDFInfo
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- CN105971658A CN105971658A CN201610295623.5A CN201610295623A CN105971658A CN 105971658 A CN105971658 A CN 105971658A CN 201610295623 A CN201610295623 A CN 201610295623A CN 105971658 A CN105971658 A CN 105971658A
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- 239000007788 liquid Substances 0.000 title claims abstract description 85
- 230000005514 two-phase flow Effects 0.000 title abstract description 11
- 230000002265 prevention Effects 0.000 title abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000007787 solid Substances 0.000 claims abstract description 31
- 230000000694 effects Effects 0.000 claims abstract description 27
- 239000007921 spray Substances 0.000 claims abstract description 21
- 238000013461 design Methods 0.000 claims abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 94
- 239000007789 gas Substances 0.000 claims description 57
- 238000000889 atomisation Methods 0.000 claims description 50
- 229910052757 nitrogen Inorganic materials 0.000 claims description 47
- 230000033228 biological regulation Effects 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 210000002445 nipple Anatomy 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 210000003437 trachea Anatomy 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000003595 mist Substances 0.000 abstract description 12
- 230000004907 flux Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 17
- 239000003245 coal Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000009692 water atomization Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 235000011399 aloe vera Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000006199 nebulizer Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a bubble atomizing goaf gas-liquid two-phase flow fire prevention and extinguishing system. The system is composed of a gas-liquid two-phase flow parameter control and adjusting device, a gas-liquid two-phase flow conveying pipeline and a gas-liquid two-phase flow three-dimensional spray pipe. The double pipe nesting design is adopted by the gas-liquid two-phase flow three-dimensional spray pipe, and a gas pipe densely provided with gas outlets is nested into a liquid pipe. Bubble atomizing nozzles which form 90-degree included angles with the spray pipe, bubble atomizing nozzles which form 60-degree included angles with the spray pipe, bubble atomizing nozzles which form 30-degree included angles with the spray pipe and a bubble atomizing nozzle which forms a 0-degree included angle with the spray pipe are sequentially arranged on the gas-liquid two-phase flow three-dimensional spray pipe. The four 90-degree bubble atomizing nozzles, the four 60-degree bubble atomizing nozzles and the four 30-degree bubble atomizing nozzles are evenly arranged around the spray pipe. The 0-degree bubble atomizing nozzle is arranged right ahead the center of the spray pipe. The atomizing taper angles of all the bubble atomizing nozzles are designed in 30-degree solid taper shapes. Through reasonable gas-liquid two-phase flow parameter control and adjustment, the gas-liquid two-phase flow three-dimensional spray pipe device can produce a large-area three-dimensional stopping fine water mist field with the good atomizing effect, large mist flux and high mist moving amount, and efficient fire prevention and extinguishing of a goaf is achieved.
Description
Technical field
The invention belongs to mine goaf fire prevention and control field, be specifically related to a kind of effervescent atomization goaf biphase gas and liquid flow
Fire extinguishing system.
Background technology
Mine fire has had a strong impact on coal production, is one of topmost disaster threatening Safety of Coal Mine Production, colliery
Annual nearly 10,000,000,000 yuan of the directly or indirectly economic loss caused due to spontaneous combustion.Spontaneous fire of mine accounts for total number of times 94% of getting angry, wherein
Heterogeneous goaf then accounts for the 60% of breeding fire.Goaf fire can be lost coal resources, burn plant equipment, causes gas, coal
Dust explosion, produces substantial amounts of thermal-flame and toxic and harmful, and the research to goaf fire protection technologies has important
Meaning.
The goaf fire hazard treating technology that presently, there are mainly has: leak stopping and pressure balance for air control technology, grouting fire extinguishing skill
The skills such as art, retardant preventing and extinguishing fire technology, three-phase foam extinguishing technique, inert gas for fire extinguishing technology prevention spontaneous fire in coal mine
Art.Different preventing and extinguishing fire technologies is all difficult to obtain preferable effect in prevention effect and economic benefit two aspect simultaneously, therefore, compels
It is essential and to propose a kind of cost-effective goaf preventing and extinguishing fire technology.
Nitrogen fire extinguishing has that technique is simple, easy and simple to handle, is prone to grasp, do not pollute fire extinguishing region, to closed area
In the equipment damage datonation-inhibition effect of dilution few, preferable, the advantage such as leak out in effective suppression fire extinguishing region, but there is fall simultaneously
Temp effect is poor, can not effectively eliminate the shortcomings such as high temperature dot.Though resistanceization water can play the fire extinguishing effect of preferable goaf, but often
Often owing to being difficult to play due effect in goaf by uniform fold；Fine mist fire-fighting is that a kind of novel fire is prevented
Control technology, the cooling effect of existing water sprinkler system, have again the smothering action of gas extinguishing system, it is possible to cooling down, suffocate, every
Adiabatic radiation and infiltration multiple action are issued to control fire, suppression fire and the purpose stamped out a fire.
CN103806932A discloses the atomization of one high-pressure nozzle and realizes chemical reaction prevention coal in goaf and catch fire
With the method for fire extinguishing, the method defect is that the high-pressure nozzle used atomization wants to produce preferable atomizing effect, needs the highest
Hydraulic pressure (producing the hydraulic pressure of 1 grade of water mists more than 10Mpa), considerably increase the cost of system, and simultaneously need to ensure nozzle
Spout sufficiently small (generally less than 1mm), nozzle easily blocks；CN101915113B authorizes a kind of mine nitrogen water mist and occurs
Device, by water guide cyclone and the setting of nebulizer, adds water mists during can be used for noting nitrogen, and CN103195462B authorizes
During mine note nitrogen, liquid adds and atomising device, a kind of mine nitrogen thin water that this device authorizes with CN101915113B
Mist generation device all utilizes traditional twin technology, by swiftly flowing gas, the shear action of water is realized water
Atomization, although this technology need not higher hydraulic pressure just can reach preferable atomizing effect (hydraulic pressure and air pressure all 0.3 ~
1 grade of water mists can be produced between 0.7Mpa), but this system structure is complex, by swiftly flowing Aerodynamic force action
Atomizing the liquid into, air consumption is excessive, and mist flux is relatively low；CN103362534B authorizes the thin water of nitrogen resistanceization preventing and treating mine fire
Mist preparation system and fire extinguishing method thereof, but concrete atomizing principles and atomising device are not described in detail.
Time marching Navier-Stokes code water mists preventing and extinguishing fire technology has significant effect to the preventing and treating of mine goaf fire, existing rank
To this technology, section includes that atomising device is not reasonable in the design of interior whole system, it is difficult to really play the excellent of this technology
Gesture, in the urgent need to proposing, a kind of atomizing effect is good, energy consumption is low, prevention effect is notable, the mine goaf gas-liquid of strong operability
Two phase flow fire extinguishing system.
Summary of the invention
The purpose of invention:
In order to overcome existing time marching Navier-Stokes code water mists preventing and extinguishing fire technology to ask present in atomising device and system design
Topic, the present invention designs a kind of effervescent atomization goaf biphase gas and liquid flow fire extinguishing system, and this system has that atomizing effect is good, power consumption
Measure the features such as low, fire prevention effect notable, strong operability, truly realize time marching Navier-Stokes code water mists fire extinguishing
Technology application in the fire preventing and controlling of mine goaf.
The technical scheme that invention provides:
A kind of effervescent atomization goaf biphase gas and liquid flow fire extinguishing system, using nitrogen as source of the gas, the outer liquid formula bubble of gas in using
Atomizing principles, is atomized resistanceization water, utilizes the flowing of nitrogen and diffusibility that resistanceization water mists is transported to each corner in goaf,
Goaf high temperature coal petrography carries out 3 D stereo covering, and comprehensive utilization nitrogen and retardant water mists are in fire preventing and treating side, goaf
The advantage in face, it is achieved effective preventing and treating of goaf fire.
A kind of effervescent atomization goaf biphase gas and liquid flow fire extinguishing system, controls including gas-liquid pipeline, gas-liquid and adjusts
Regulating device, biphase gas and liquid flow solid jet pipe.It is characterized in that: described gas-liquid controls and adjusting means is installed on gas-liquid pipeline
On, the end of gas-liquid pipeline connects biphase gas and liquid flow solid jet pipe, and biphase gas and liquid flow solid jet pipe sprays substantial amounts of gas-liquid
Biphase flow resistance water mists realizes effective preventing and treating of mine goaf fire.
Described gas-liquid delivery pipe line is made up of grid and Nitrogen pipe network, retardant current and air-flow separate inflow gas
Liquid two-phase solid Effuser device, in biphase gas and liquid flow solid Effuser device gassing atomizing.
Described gas-liquid state modulator and adjusting means comprise conduit control valve door, water filtering device, water ga(u)ge, hydraulic pressure tune
Joint valve, nitrogen tube control flap, nitrogen filtering device, nitrogen flow meter, nitrogen pressure regulation valve, it is possible to hydraulic pressure, air pressure, water
The parameter such as flow, throughput is controlled and regulates.
Set gradually, on described biphase gas and liquid flow solid Effuser device, the gas becoming 90 degree, 60 degree, 30 degree and 0 degree angles with jet pipe
Bubble atomizer；90 degree, 60 degree, 30 degree of angle effervescent atomization shower nozzles be respectively evenly arranged four around jet pipe, 0 degree of angle effervescent atomization spray
Head is arranged in jet pipe central authorities dead ahead；Each effervescent atomization shower nozzle atomization cone angle be designed to 30 degree solid tapered.Gas-liquid two-phase
The three-dimensional embedded air jet pipe of Effuser device of stream is evenly arranged fumarole along the hand of spiral, and each shower nozzle entrance is respectively provided with intensive
The jet orifice plate of spray orifice.
The beneficial effect of the invention:
A kind of effervescent atomization goaf biphase gas and liquid flow fire extinguishing system is capable of in inerting, cools down, suffocates, completely cuts off heat radiation
With the mine goaf fire preventing and treating under the multiple effect such as infiltration.
Pass through the strong shearing of high velocity air during effervescent atomization and tear effect produces a large amount of drop wrapping up bubble
And liquidus, the bubble wrapped up in forming primary atomization, liquid " bursts " under inside and outside differential pressure effect after jetting nozzle and forms two
Secondary atomization.Owing to the skin covering of the surface of bubble is much smaller than fluid column or the thickness of liquid film, the required energy of effervescent atomization technology atomization is less, mist
The granularity changed is the thinnest.Nozzle outlet diameter size is less on atomizing effect impact, and therefore, nozzle outlet diameter can be designed to
Several times of sizes of plain nozzle outlet diameter, have stopped the blocking of nozzle.
Using effervescent atomization principle relatively low to the requirement of hydraulic pressure and air pressure, air consumption is low, and mist flux is big, at hydraulic pressure and air pressure
Be respectively less than 0.5Mpa, gas-liquid mass flow ratio (GLR) be 0.1 situation just can produce mist droplet particle size be less than 100μmWater
Mist.
Reasonably the design of biphase gas and liquid flow solid Effuser device, makes system structure simpler reliably, the spreading of spray of jet pipe
Degree and range are greatly improved, it is achieved that goaf omnibearing stereo nitrogen on a large scale-resistanceization water mists covers, and is effectively increased and adopts
The fire extinguishing effect of dead zone.
Accompanying drawing explanation
Fig. 1 is the structural representation of biphase gas and liquid flow fire extinguishing system of the present invention.
Fig. 2 is that biphase gas and liquid flow solid Effuser device of the present invention partly cuts open schematic diagram.
Fig. 3 is the effervescent atomization shower nozzle profile of biphase gas and liquid flow solid jet pipe an angle of 90 degrees of the present invention.
Fig. 4 is the effervescent atomization shower nozzle profile at 60 degree of angles of biphase gas and liquid flow solid jet pipe of the present invention.
Fig. 5 is the effervescent atomization shower nozzle profile at 30 degree of angles of biphase gas and liquid flow solid jet pipe of the present invention.
Fig. 6 is the effervescent atomization shower nozzle profile at 0 degree of angle of biphase gas and liquid flow solid jet pipe of the present invention.
Fig. 7 is the effervescent atomization spray nozzle at 90 degree, 60 degree, 30 degree and 0 degree angles of biphase gas and liquid flow solid jet pipe of the present invention
The structural representation of plate 25.
Fig. 8 is nitrogen atomization jet pipe of the present invention and spray orifice layout 3 d effect graph.
Fig. 9 is that structural representation is looked in biphase gas and liquid flow solid Effuser device front of the present invention straight.
Figure 10 is biphase gas and liquid flow solid Effuser device jeting effect schematic diagram of the present invention.
In figure: 1: water pipe head, 2: conduit control valve door, 3: water filtering device, 4: water ga(u)ge, 5: hydraulic-pressure regulating valve,
6: nitrogen tube joint, 7: nitrogen tube control flap, 8: nitrogen filtering device, 9: nitrogen flow meter, 10: nitrogen pressure regulation valve；
11: water pipe head, 12: nitrogen tube joint, 13: nitrogen tube, 14: nitrogen tube fixed disc, 15: water pipe, 16: the outer wire connection of jet pipe
Head, 17: Threaded Connector Coupling in jet pipe, 18: biphase gas and liquid flow solid Effuser device, 19:90 degree angle effervescent atomization shower nozzle, 20:60 degree angle
Effervescent atomization shower nozzle, 21:30 degree angle effervescent atomization shower nozzle, 22:0 degree angle effervescent atomization shower nozzle, 23: nitrogen tube spray orifice, 24: gas-liquid
Mixing chamber, 25: jet orifice plate.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiments of the present invention are described in further detail.
As shown in drawings: a kind of effervescent atomization goaf biphase gas and liquid flow fire extinguishing system of the present invention is by gas-liquid parameter control
System and adjusting means, gas-liquid delivery pipe line, biphase gas and liquid flow solid Effuser device three part composition.
Effervescent atomization goaf biphase gas and liquid flow fire extinguishing working-flow:
(1) pipeline and biphase gas and liquid flow solid Effuser device are arranged.Nitrogen pipeline and resistanceization water lines are arranged in work surface and enter
In wind crossheading；By Threaded Connector Coupling 17 in jet pipe nipple 16 and jet pipe by biphase gas and liquid flow solid Effuser device and processing in advance
The water pipe of good embedded trachea connects；Biphase gas and liquid flow solid Effuser device 18 level in advance is imbedded goaf, Effuser device
18 bury with bulk rock mass or utilize overcoat rigidity ferrum cage to protect.
(2) gas-liquid state modulator and regulation.By water pipe head 1 and nitrogen tube joint 6 by this system and resistanceization water source and
Source nitrogen is attached；Regulation conduit control valve door 2 and nitrogen tube control flap 7, by resistanceization water and the pressure of nitrogen and flow
Regulation is to optimal atomization parameter.
(3) resistanceization water atomization and injection.Resistanceization water and nitrogen are fed forward by water pipe 15 and nitrogen tube 13 respectively；Resistanceization
After current and nitrogen arrive biphase gas and liquid flow solid Effuser device, swiftly flowing high pressure nitrogen passes through nitrogen atomization jet pipe and spray
On orifice plate nitrogen tube spray orifice 23 resistanceization current are carried out strong shearing and tear effect, thus produce and wrap up bubble in a large number
Drop and liquidus, successively in gas-liquid mixed room 24 formed uniform biphase gas and liquid flow；Bubble is transported during two-phase flow
Moving, accelerate, deform, the nozzle exit at 90 degree, 60 degree, 30 degree, 0 degree angle effervescent atomization shower nozzles 19,20,21,22 will successively
It is spouting that liquid is squeezed into filament wire；Leaving the jet expansion extremely short time and apart from interior, bubble is due to inside and outside simultaneously
The abrupt change of pressure reduction and drastically expand, until explosion, thus brin, liquidus are exploded into trickleer granule, it is achieved resistanceization
Water droplet is fully atomized.
(4) migration of resistanceization water mists.From the resistance water mists of biphase gas and liquid flow solid Effuser device ejection at nitrogen and
Under the effect of goaf air leaking, migrate to each corner in goaf.
(5) nitrogen-resistanceization water mists fire extinguishing.This system can play water, retardant, the fire extinguishing of nitrogen three simultaneously
Effect, it is achieved the fire extinguishing in goaf.
The effervescent atomization goaf biphase gas and liquid flow fire extinguishing system of the present invention, pipe laying injection, trustship can be used to inject,
Boring is injected, is intubated the techniques such as injection and airtight injection.
Finally should be noted that: the foregoing is only technical scheme, be not limited, all at this
Within the spirit of invention and principle, any amendment of being made, improvement, equivalent, should be included in protection scope of the present invention
Within.
Claims (6)
1. an effervescent atomization goaf biphase gas and liquid flow fire extinguishing system, it is characterised in that: system is by biphase gas and liquid flow parameter
Control and adjusting means, biphase gas and liquid flow feed-line, biphase gas and liquid flow solid Effuser device three part composition；Biphase gas and liquid flow
State modulator and adjusting means include water pipe head (1), conduit control valve door (2), water filtering device (3), water ga(u)ge (4),
Hydraulic-pressure regulating valve (5), nitrogen tube joint (6), nitrogen tube control flap (7), nitrogen filtering device (8), nitrogen flow meter (9),
Nitrogen pressure regulation valve (10)；Biphase gas and liquid flow feed-line includes water pipe head (11), nitrogen tube joint (12), nitrogen tube
(13), nitrogen tube fixed disc (14), water pipe (15), jet pipe nipple (16)；Biphase gas and liquid flow solid Effuser device (18)
Including Threaded Connector Coupling in jet pipe (17), an angle of 90 degrees effervescent atomization shower nozzle (19), 60 degree of angles effervescent atomization shower nozzle (20), 30 degree of angle bubbles
Atomizer (21) and 0 degree of angle effervescent atomization shower nozzle (22), nitrogen tube spray orifice (23).
A kind of effervescent atomization goaf the most according to claim 1 biphase gas and liquid flow fire extinguishing system, it is characterised in that: gas
Liquid two-phase solid Effuser device uses two-tube nested designs, inside the trachea nesting feed tube with intensive venthole.
A kind of effervescent atomization goaf the most according to claim 1 biphase gas and liquid flow fire extinguishing system, it is characterised in that: gas
The effervescent atomization shower nozzle becoming 90 degree, 60 degree, 30 degree and 0 degree angles with jet pipe is set gradually on liquid two-phase solid jet pipe；90 degree, 60
Degree, 30 degree of angle effervescent atomization shower nozzles are respectively evenly arranged four around jet pipe, and 0 degree of angle effervescent atomization nozzle layout of sprinkler is in jet pipe central authorities just
Front；Each effervescent atomization shower nozzle atomization cone angle be designed to 30 degree solid tapered.
A kind of effervescent atomization goaf the most according to claim 1 biphase gas and liquid flow fire extinguishing system, it is characterised in that: gas
Liquid two-phase solid Effuser device utilizes effervescent atomization principle, passes through the strong shearing of high velocity air and tear is made inside jet pipe
With producing a large amount of drop wrapping up bubble and liquidus, forming primary atomization, the bubble of the interior parcel of liquid is after ejection spray nozzle
" explode " under inside and outside differential pressure effect formation secondary-atomizing.
A kind of effervescent atomization goaf the most according to claim 1 biphase gas and liquid flow fire extinguishing system, it is characterised in that: gas
The parameters such as hydraulic pressure, air pressure and gas-liquid mass flow ratio (GLR) can be controlled by liquid two-phase state modulator and adjusting means
Regulation, it is achieved optimal atomizing effect.
A kind of effervescent atomization goaf the most according to claim 1 biphase gas and liquid flow fire extinguishing system, it is characterised in that: gas
Liquid two-phase solid Effuser device and biphase gas and liquid flow feed-line are by Threaded Connector Coupling in jet pipe nipple (16) and jet pipe
(17) it is attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295623.5A CN105971658B (en) | 2016-05-06 | 2016-05-06 | A kind of effervescent atomization goaf biphase gas and liquid flow fire extinguishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295623.5A CN105971658B (en) | 2016-05-06 | 2016-05-06 | A kind of effervescent atomization goaf biphase gas and liquid flow fire extinguishing system |
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| Publication Number | Publication Date |
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| CN105971658A true CN105971658A (en) | 2016-09-28 |
| CN105971658B CN105971658B (en) | 2018-05-18 |
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Cited By (5)
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| CN106761887A (en) * | 2016-11-18 | 2017-05-31 | 济宁学院 | A kind of coal mine gob extinguishing device |
| CN107083987A (en) * | 2017-03-24 | 2017-08-22 | 中国矿业大学(北京) | Prevent and treat the nitrogen resistanceization steam fog preparation method and system of underground goaf spontaneous combustionof coal |
| CN107642374A (en) * | 2017-10-23 | 2018-01-30 | 华北科技学院 | A kind of automatics and method that the hidden fire of heading is prevented and treated using water mists |
| CN110127012A (en) * | 2019-05-30 | 2019-08-16 | 武汉理工大学 | A kind of intelligent nitrogen-water mist system reducing naval vessel implosion damage and subsequent combustion |
| CN115845307A (en) * | 2022-09-09 | 2023-03-28 | 中国空气动力研究与发展中心空天技术研究所 | Water mist inert gas two-phase flow fire extinguishing system based on gas-liquid coaxial centrifugal nozzle |
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| CN106761887B (en) * | 2016-11-18 | 2018-11-16 | 济宁学院 | A kind of coal mine gob extinguishing device |
| CN107083987A (en) * | 2017-03-24 | 2017-08-22 | 中国矿业大学(北京) | Prevent and treat the nitrogen resistanceization steam fog preparation method and system of underground goaf spontaneous combustionof coal |
| CN107642374A (en) * | 2017-10-23 | 2018-01-30 | 华北科技学院 | A kind of automatics and method that the hidden fire of heading is prevented and treated using water mists |
| CN110127012A (en) * | 2019-05-30 | 2019-08-16 | 武汉理工大学 | A kind of intelligent nitrogen-water mist system reducing naval vessel implosion damage and subsequent combustion |
| CN110127012B (en) * | 2019-05-30 | 2022-01-11 | 武汉理工大学 | Intelligent nitrogen-water mist system for reducing ship implosion damage and subsequent combustion |
| CN115845307A (en) * | 2022-09-09 | 2023-03-28 | 中国空气动力研究与发展中心空天技术研究所 | Water mist inert gas two-phase flow fire extinguishing system based on gas-liquid coaxial centrifugal nozzle |
| CN115845307B (en) * | 2022-09-09 | 2023-08-11 | 中国空气动力研究与发展中心空天技术研究所 | Fine water mist inert gas two-phase flow fire extinguishing system based on gas-liquid coaxial centrifugal nozzle |
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