CN101058013B - Portable type superfine gas-water mist extinguishers - Google Patents
Portable type superfine gas-water mist extinguishers Download PDFInfo
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- CN101058013B CN101058013B CN2007101003967A CN200710100396A CN101058013B CN 101058013 B CN101058013 B CN 101058013B CN 2007101003967 A CN2007101003967 A CN 2007101003967A CN 200710100396 A CN200710100396 A CN 200710100396A CN 101058013 B CN101058013 B CN 101058013B
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- spray gun
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- pipeline
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 239000003595 mist Substances 0.000 title claims description 26
- 239000007921 spray Substances 0.000 claims abstract description 69
- 239000007788 liquid Substances 0.000 claims description 33
- 230000007246 mechanism Effects 0.000 claims description 22
- 238000005507 spraying Methods 0.000 claims description 19
- 239000000779 smoke Substances 0.000 claims description 15
- 239000003638 chemical reducing agent Substances 0.000 claims description 14
- 230000008859 change Effects 0.000 claims description 9
- 230000008676 import Effects 0.000 claims description 7
- 230000007480 spreading Effects 0.000 claims description 7
- 239000007789 gas Substances 0.000 description 30
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000005514 two-phase flow Effects 0.000 description 4
- 150000001350 alkyl halides Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920004449 Halon® Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000012925 reference material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention relates to a portable ultra thin air water spray fire-extinguisher, comprising two-way de-compressor (1), gas cylinder (2), water storage bottle (3) and ejection gun (4). The gas cylinder is connected with two -way de-compressor through pipeline (21), the output of two-way de-compressor comprises two ways, one is connected with water storage bottle though pipeline (11) and plug interface (111), another way is connected with ejection gun through pipeline (12) and plug interface (122), the output of water storage bottle is connected with ejection gun through pipeline (31) and pluginterface (311). Cocking ejection gun to open trigger valve, the ultra-thin air water spray is ejected out to extinguish fire.
Description
(1) technical field:
The present invention relates to a kind of portable type superfine gas-water mist extinguishers, is the substitute products of haloalkane extinguishing system, belongs to the fire prevention field.
(2) background technology:
At present, the Single-fluid Water Mist Fire of employing has following weak point;
(1) big fire of going out is easy, the little fire difficulty of going out.
This situation occurring is because single-phase fine mist fire-fighting mechanism causes, fine water mist fire-extinguishing system is a total flooding extinguishing system, its dominant mechanism is to suffocate, the caloric value of little fire is very little, oxygen demand is also little, therefore little fire makes thin water smoke evaporation capacity very little, and of such a size space can't suffocate by steam so in a small amount.Therefore going out the effect of little fire with thin water smoke just can't be satisfactory.
(2) go out B (liquid) class fire easily, the A that goes out (solid) class fire difficulty, particularly smoldering fire.
This mainly is that in the space of sealing, the heat absorption of single-phase thin water smoke and the effect of suffocating are very obvious because category-B fire burns speed is very fast, and caloric value is bigger, therefore puts out easier.And the category-A fire is at the fire early period of origination, and burning velocity is slower, and caloric value is less, and oxygen demand is also very little, can not make a large amount of thin water smoke evaporations, and the poor effect of suffocating of therefore thin water smoke causes the A that goes out (solid) class fire difficulty.For smoldering fire, this situation is just more serious.
(3) can not guarantee that water funk especially object of protection is not had any water stain influence.
Substituting the fire extinguishing system of breathing out dragon should have no effect to object of protection itself; present single-phase water mist system has only been done oil and transformer fire-extinguishing test; and some fire-extinguishing test and thin water smoke of breathing out imperial field of employment (computer floor, archive office etc.) is not carried out the influence test of object of protection (computer, books and reference materials); but from present thin water smoke product; its drop diameter is bigger than normal; diameter certainly will cause the appearance of water greatly, pollutes or the destruction object of protection.
(4) be difficult to single-phase thin water smoke is applied on the mobile extinguishing device.
Single-phase water mist system is in order to obtain thinner water smoke particle diameter under heavy traffic condition, must significantly improve the blowing pressure, by increasing the fogging degree that jet velocity improves jet, this will cause the increase of tank wall thickness and quality, make troubles for portable use.And its fire-fighting mode of current water mist system is total flooding, this fire-fighting mode can't be applied in the replacement of portable halon extinguisher.
(3) summary of the invention:
A kind of portable type superfine gas-water mist extinguishers of the present invention, this fire extinguisher are by two-way pressure reducer 1, gas cylinder 2, and water storage bottle 3 and spray gun 4 are formed;
Its annexation is: gas cylinder 2 connects two-way pressure reducer 1 by pipeline 21,1 output of two-way pressure reducer is divided into two-way, one the tunnel is to be connected with water storage bottle 3 by pipeline 11 and fast interface 111, another road is to be connected with spray gun 4 by pipeline 12 and fast interface 122, and the output of water storage bottle 3 is connected with spray gun 4 by pipeline 31 and fast interface 311;
Wherein, this spray gun 4 has two-way trigger valve 5, effervescent atomizer 6 and becomes spray shapes mechanism 7;
This two-way trigger valve 5 is seated in the spray gun 4, has valve body 51, spring 52, valve rod 53, import 54 and exports 55; This valve rod 53 is located in the valve body 51, and this spring 52 is set on the valve rod 53; When pulling the plate machine of this two-way plate machine valve 5, when valve rod 53 was moved to the left, import 54 was communicated with outlet 55, and the gentle two-way of water enters hybrid chamber 41 simultaneously;
This effervescent atomizer 6 is located at the spray gun front portion, is made up of hybrid chamber 41, gas feed 42, liquid-inlet 43, Laval nozzle 44 and liquid collecting cavity 45; The left side of this hybrid chamber 41 is provided with gas feed 42, the right side is provided with Laval nozzle 44, two of this Laval nozzle 44 is bell mouth shape, the centre is the narrow pipe shape that contracts, one horn mouth is connected with hybrid chamber 41, the horn mouth of other end is a spout 47, these Laval nozzle 44 latent being located in the gun barrel of spray gun 4 front portions; Outer wall outside in mixed chamber 41 is provided with liquid collecting cavity 45, and this liquid collecting cavity 45 is provided with the liquid-inlet 43 that enters for liquid, is provided with the aperture 46 that enters for liquid in the hybrid chamber 41 on the outer wall of hybrid chamber 41;
Wherein, the head of spray gun 4 is equiped with and becomes spraying deformation mechanism 7, is used for changing spraying square angle and range; This spraying deformation mechanism includes circular cone 71, hook 72, hook 72 has top locating hole 73 and bottom locating hole 74, when utilizing top locating hole 73 deformation mechanism 7 of will spraying to be hung on when aiming at spout 47 on the gun barrel of spray gun 4, water smoke by spout 47 ejections is beaten on circular cone 71, it is big that spreading of spray becomes, and realizes becoming for the first time mist shape; When utilizing bottom locating hole 74 deformation mechanism 7 of will spraying to be hung on when aiming at spout 47 on the gun barrel of spray gun 4, to beat on circular cone 71 by the water smoke of spout 47 ejections, spreading of spray becomes greatly again, realizes two-stage change mist shape with this.
A kind of portable type superfine gas-water mist extinguishers of the present invention, during work, pull spray gun trigger, two-way trigger valve 5 is opened, gas in this gas cylinder 2 is input in the two-way pressure reducer 1 by pipeline, gases at high pressure are divided into two-way after two-way pressure reducer 1 decompression, one road gases at high pressure enter water storage bottle 3 by pipeline, and the water in the water storage bottle 3 is entered in the hybrid chamber 41 by the aperture 46 on hybrid chamber 41 outer walls after being clamp-oned in the outer liquid collecting cavity 45 of the hybrid chamber 41 of spray gun 4 by gases at high pressure then; Another road gases at high pressure directly enter in the hybrid chamber 41 of spray gun 4 by pipeline; In addition, can also regulate according to the actual conditions in the scene of a fire and enter gas liquid ratio in the hybrid chamber 41, realize the air water mist of different qualities; In order to reach the fast reaction of fire extinguisher, adopt fast interface to connect various piece, improved the reaction speed and the scope of application of fire extinguisher; In the hybrid chamber 41 of spray gun 4, the liquid in the liquid collecting cavity 45 enters into hybrid chamber 41 by the aperture on the hybrid chamber outer wall 46; Gases at high pressure enter into hybrid chamber 41 by the gas feed 42 of hybrid chamber 41; The liquid that injects forms jet, and gas and liquid form two phase flow in hybrid chamber 41; Two phase flow is through Laval nozzle 44 time, and liquid is squeezed into fragment by bubble, after penetrating from spout 47, and the rapid expansion explosion of a large amount of minute bubbles in the dual-phase jet, thereby atomized liquid; In order to adapt to different extinguishment requirements and protect personal security under emergency situation, the present invention has installed the change spray shapes mechanism that can change spraying square angle and range at the head of spray gun 4.
A kind of portable type superfine gas-water mist extinguishers of the present invention, its advantage and powerful as follows:
1) air-water mixture (ultra-fine air water mist) of spout ejection has the quality mid diameter less than 100 microns, the speed characteristics greater than 100 meter per seconds, reaches the effect of atomization fire extinguishing; Effervescent atomizer is used in the design of spray gun, thereby it is light to have reached structure, can be used for moving fire extinguishing.
2) feature of environmental protection is good, fire extinguishing is rapid, water consumption is low, destructiveness is little and suitable face width, and has excellent electric insulating.
3) reach nontoxic, pollution-free, water damage is little, can substitute haloalkane fire extinguisher.
4) can put out up to 36000 volts of electrical equipment high pressure, the fire extinguishing personal security.
5) water system only need provide not too high pressure, makes water storage bottle withstand voltage reduce, and reduces installation weight, improve greatly fire extinguisher security, reach reliability and portability.
6) spout of spray gun can spray three kinds of different angles water smokes, to satisfy the different needs in the fire extinguishing procedure.
(4) description of drawings:
Fig. 1 portable type superfine gas-water mist extinguishers schematic diagram.
Fig. 2 effervescent atomizer schematic diagram.
The inner trigger valve structural representation of Fig. 3 spray gun.
Fig. 4 becomes spray shapes mechanism.
Number in the figure is described as follows:
1 two-way pressure reducer, 2 gas cylinders, 3 water storage bottles
4 spray guns, 5 two-way trigger valves, 6 effervescent atomizers
7 spraying distortion shape mechanism 11 pipelines, 111 fast interfaces
12 pipelines, 122 fast interface 21 pipelines
31 pipelines, 311 fast interface 41 hybrid chambers
42 gas feeds, 43 liquid-inlets, 44 Laval nozzles
45 liquid collecting cavities, 46 apertures, 47 spouts
51 valve bodies, 52 springs, 53 valve rods
54 imports, 55 outlets, 71 circular cones
72 hooks, 73 top locating holes, 74 bottom locating holes
(5) specific embodiment:
A kind of portable type superfine gas-water mist extinguishers of the present invention, this fire extinguisher are by two-way pressure reducer 1, gas cylinder 2, and water storage bottle 3 and spray gun 4 are formed;
See also shown in Figure 1, the annexation of this fire extinguisher is: gas cylinder 2 connects two-way pressure reducer 1 by pipeline 21,1 output of two-way pressure reducer is divided into two-way, one the tunnel is to be connected with water storage bottle 3 by pipeline 11 and fast interface 111, another road is to be connected with spray gun 4 by pipeline 12 and fast interface 122, and the output of water storage bottle 3 is connected with spray gun 4 by pipeline 31 and fast interface 311;
Wherein, this spray gun 4 has two-way trigger valve 5, effervescent atomizer 6 and becomes spray shapes mechanism 7;
See also shown in Figure 2ly, this two-way trigger valve 5 is seated in the spray gun 4, has valve body 51, spring 52, valve rod 53, import 54 and exports 55; This valve rod 53 is located in the valve body 51, and this spring 52 is set on the valve rod 53; When pulling the plate machine of this two-way plate machine valve 5, when valve rod 53 was moved to the left, import 54 was communicated with outlet 55, and the gentle two-way of water enters hybrid chamber 41 simultaneously;
See also shown in Figure 3ly, this effervescent atomizer 6 is located at the spray gun front portion, is made up of hybrid chamber 41, gas feed 42, liquid-inlet 43, Laval nozzle 44 and liquid collecting cavity 45; The left side of this hybrid chamber 41 is provided with gas feed 42, the right side is provided with Laval nozzle 44, two of this Laval nozzle 44 is bell mouth shape, the centre is the narrow pipe shape that contracts, one horn mouth is connected with hybrid chamber 41, the horn mouth of other end is a spout 47, these Laval nozzle 44 latent being located in the gun barrel of spray gun 4 front portions; Outer wall outside in mixed chamber 41 is provided with liquid collecting cavity 45, and this liquid collecting cavity 45 is provided with the liquid-inlet 43 that enters for liquid, is provided with the aperture 46 that enters for liquid in the hybrid chamber 41 on the outer wall of hybrid chamber 41;
See also shown in Figure 4ly, the head of spray gun 4 is equiped with and becomes spraying deformation mechanism 7, is used for changing spraying square angle and range; This spraying deformation mechanism includes circular cone 71, hook 72, hook 72 has top locating hole 73 and bottom locating hole 74, when utilizing top locating hole 73 deformation mechanism 7 of will spraying to be hung on when aiming at spout 47 on the gun barrel of spray gun 4, water smoke by spout 47 ejections is beaten on circular cone 71, it is big that spreading of spray becomes, and realizes becoming for the first time mist shape; When utilizing bottom locating hole 74 deformation mechanism 7 of will spraying to be hung on when aiming at spout 47 on the gun barrel of spray gun 4, to beat on circular cone 71 by the water smoke of spout 47 ejections, spreading of spray becomes greatly again, realizes two-stage change mist shape with this.
When using this fire extinguisher work, pull spray gun trigger, two-way trigger valve 5 is opened, gas in this gas cylinder 2 is input in the two-way pressure reducer 1 by pipeline, gases at high pressure are divided into two-way after 1 decompression of two-way pressure reducer, one road gases at high pressure enter water storage bottle 3 by pipeline, and the water in the water storage bottle 3 is entered in the hybrid chamber 41 by the aperture 46 on hybrid chamber 41 outer walls after being clamp-oned in the outer liquid collecting cavity 45 of the hybrid chamber 41 of spray gun 4 by gases at high pressure then; Another road gases at high pressure directly enter in the hybrid chamber 41 of spray gun 4 by pipeline; Ultra-fine air water mist in addition, can also be regulated according to the actual conditions in the scene of a fire and enter gas liquid ratio in the hybrid chamber 41 by spout 47 ejections after Bearing score is separated your jet pipe 44, realizes the air water mist of different qualities; In order to reach the fast reaction of fire extinguisher, adopt fast interface to connect various piece, improved the reaction speed and the scope of application of fire extinguisher; In the hybrid chamber 41 of spray gun 4, the liquid in the liquid collecting cavity 45 enters into hybrid chamber 41 by the aperture on the hybrid chamber outer wall 46; Gases at high pressure enter into hybrid chamber 41 by the gas feed 42 of hybrid chamber 41; The liquid that injects forms jet, and gas and liquid form two phase flow in hybrid chamber 41; Two phase flow is through Laval nozzle 44 time, and liquid is squeezed into fragment by bubble, after penetrating from spout 47, and the rapid expansion explosion of a large amount of minute bubbles in the dual-phase jet, thereby atomized liquid; In order to adapt to different extinguishment requirements and protection personnel under emergency situation.
Above-mentioned superfine spray from the working method of spout ejection, is main working method directly, and spray angle is no more than 15 degree under this working method, and the carry of spray can reach 10 meters.
The present invention has installed the change spray shapes mechanism that can change spraying square angle and range at the head of spray gun 4; Make working method change into the back work mode that two-stage changes: (to suddenly change as wind direction when in critical condition; flare blows against one's face to the user of service) time; the user can pull at once and become spray shapes mechanism 7, makes spreading of spray become big, the carry of spray and shortens to play the effect of self-protection.In addition,, also can use the back work mode instead and put out a fire during apart from the too near inconvenience of user when ignition point with main working method.
Because adopt above-mentioned portable type superfine water spray extinguisher fire extinguishing, the high-speed and high-density superfine spray of its generation sprays to and covers the scene of a fire, stamp out a fire immediately, and this fire extinguisher mobility strong, can avoid or the loss of minimizing personnel, property, social benefit is obvious.
Claims (2)
1. portable type superfine gas-water mist extinguishers is characterized in that: this fire extinguisher is by two-way pressure reducer (1), gas cylinder (2), and water storage bottle (3) and spray gun (4) form;
Its annexation is: gas cylinder (2) connects two-way pressure reducer (1) by pipeline (21), two-way pressure reducer (1) output is divided into two-way, one the tunnel is to be connected with water storage bottle (3) by pipeline (11) and fast interface (111), another road is to be connected with spray gun (4) by pipeline (12) and fast interface (122), and the output of water storage bottle (3) is connected with spray gun (4) by pipeline (31) and fast interface (311);
Wherein, this spray gun (4) has two-way trigger valve (5), effervescent atomizer (6) and spraying deformation mechanism (7);
This two-way trigger valve (5) is seated in the spray gun (4), has valve body (51), spring (52), valve rod (53), import (54) and outlet (55); This valve rod (53) is located in the valve body (51), and this spring (52) is set on the valve rod (53); When the plate machine of pulling on the spray gun, valve rod (53) is moved to the left, and import (54) is communicated with outlet (55), and the gentle two-way of water enters simultaneously in the hybrid chamber (41) and from spout (47) and sprays;
This effervescent atomizer (6) is located at the front portion of spray gun (4), and this effervescent atomizer (6) is made up of hybrid chamber (41), gas feed (42), liquid-inlet (43), Laval nozzle (44) and liquid collecting cavity (45); The left side of this hybrid chamber (41) is provided with gas feed (42), the right side is provided with Laval nozzle (44), two of this Laval nozzle (44) is bell mouth shape, the centre is the narrow pipe shape that contracts, one horn mouth is connected with hybrid chamber (41), the horn mouth of other end is spout (47), and this Laval nozzle (44) is latent to be located in the anterior gun barrel of spray gun (4); Outer wall outside in mixed chamber (41) is provided with liquid collecting cavity (45), and this liquid collecting cavity (45) is provided with the liquid-inlet (43) that enters for liquid, is provided with the aperture (46) that enters for liquid in the hybrid chamber (41) on the outer wall of hybrid chamber (41).
2. according to right 1 described portable type superfine gas-water mist extinguishers, it is characterized in that: the head of this spray gun (4) is equiped with the spraying deformation mechanism (7) that is used to change spraying square angle and range, this spraying deformation mechanism (7) includes circular cone (71), hook (72), hook (72) has top locating hole (73) and bottom locating hole (74), when utilizing top locating hole (73) deformation mechanism (7) of will spraying to be hung on when aiming at spout (47) on the gun barrel of spray gun (4), water smoke by spout (47) ejection is beaten on circular cone (71), it is big that spreading of spray becomes, realize becoming for the first time mist shape, when utilizing bottom locating hole (74) deformation mechanism (7) of will spraying to be hung on when aiming at spout (47) on the gun barrel of spray gun (4), water smoke by spout (47) ejection is beaten on circular cone (71), spreading of spray becomes greatly again, realizes that two-stage becomes mist shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101003967A CN101058013B (en) | 2007-06-11 | 2007-06-11 | Portable type superfine gas-water mist extinguishers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101003967A CN101058013B (en) | 2007-06-11 | 2007-06-11 | Portable type superfine gas-water mist extinguishers |
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| Publication Number | Publication Date |
|---|---|
| CN101058013A CN101058013A (en) | 2007-10-24 |
| CN101058013B true CN101058013B (en) | 2011-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101003967A Expired - Fee Related CN101058013B (en) | 2007-06-11 | 2007-06-11 | Portable type superfine gas-water mist extinguishers |
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| CN (1) | CN101058013B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102058948B (en) * | 2011-01-24 | 2013-07-17 | 北京航空航天大学 | Extinguishing method and device by water-mist of preheated water |
| CN102151629B (en) * | 2011-04-11 | 2013-05-01 | 北京航空航天大学 | Pulse combustion-driven hot fine water mist generation method and device |
| CN103845833B (en) * | 2014-03-11 | 2017-02-01 | 中国科学技术大学 | Double-fluid jet water mist fire gun |
| CN103949026B (en) * | 2014-03-28 | 2019-01-01 | 北京喜安妮科技发展有限公司 | Fine water mist fire-extinguishing system |
| CN104027918A (en) * | 2014-06-26 | 2014-09-10 | 无锡市崇安区科技创业服务中心 | Multi-bottle linkage Forrex liquid fire extinguisher |
| CN106669061A (en) * | 2015-11-09 | 2017-05-17 | 中国人民解放军军械工程学院 | Telescopic fire gun |
| CN106422125A (en) * | 2016-11-18 | 2017-02-22 | 北京天康达科技发展有限公司 | Backpack type perfluorinated ethyl isopropyl ketone special air-blast atomizing fire gun and application thereof |
| CN106606832A (en) * | 2016-12-30 | 2017-05-03 | 周洋 | Cart-type dodecafluoro-2-methylpentan-3-one fire extinguishing gun |
| CN109398602B (en) * | 2017-08-15 | 2021-09-10 | 上海船厂船舶有限公司 | Method for installing high-pressure air bottle assembly for drilling ship |
| CN110507926A (en) * | 2018-05-21 | 2019-11-29 | 曹庆焱 | The dedicated fine spray extinguisher of wind-driven generator |
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| CN2589006Y (en) * | 2002-11-04 | 2003-12-03 | 魏厚瑗 | Pulsating air pressure type injector |
| US20050145724A1 (en) * | 2003-12-30 | 2005-07-07 | 3M Innovative Properties Company | Liquid spray gun with manually separable portions |
| CN2863181Y (en) * | 2005-11-18 | 2007-01-31 | 殷广立 | Gas-liquid two-phase current extinguishing device |
| CN2875506Y (en) * | 2006-03-14 | 2007-03-07 | 王永利 | Multi-functional fire-gun by sprying water |
| CN201055627Y (en) * | 2007-06-11 | 2008-05-07 | 北京航空航天大学 | Portable ultra-fine air-water-mist fire extinguisher |
-
2007
- 2007-06-11 CN CN2007101003967A patent/CN101058013B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2589006Y (en) * | 2002-11-04 | 2003-12-03 | 魏厚瑗 | Pulsating air pressure type injector |
| US20050145724A1 (en) * | 2003-12-30 | 2005-07-07 | 3M Innovative Properties Company | Liquid spray gun with manually separable portions |
| CN2863181Y (en) * | 2005-11-18 | 2007-01-31 | 殷广立 | Gas-liquid two-phase current extinguishing device |
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| CN201055627Y (en) * | 2007-06-11 | 2008-05-07 | 北京航空航天大学 | Portable ultra-fine air-water-mist fire extinguisher |
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| CN101058013A (en) | 2007-10-24 |
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