CN102500080B - Foam fire extinguisher - Google Patents
Foam fire extinguisher Download PDFInfo
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- CN102500080B CN102500080B CN201110336463.1A CN201110336463A CN102500080B CN 102500080 B CN102500080 B CN 102500080B CN 201110336463 A CN201110336463 A CN 201110336463A CN 102500080 B CN102500080 B CN 102500080B
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- gas
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- water
- liquid
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- 239000006260 foam Substances 0.000 title claims abstract description 66
- 239000007789 gas Substances 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 239000011261 inert gas Substances 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims description 23
- 238000012856 packing Methods 0.000 claims description 16
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- 239000003595 mist Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000004088 foaming agent Substances 0.000 abstract description 4
- 239000006096 absorbing agent Substances 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 13
- 239000000243 solution Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 11
- 238000005187 foaming Methods 0.000 description 11
- 239000002351 wastewater Substances 0.000 description 6
- 239000004604 Blowing Agent Substances 0.000 description 4
- 241000009298 Trigla lyra Species 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 241000876443 Varanus salvator Species 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention provides a foam fire extinguisher, which comprises an inert gas steel bottle (12), water for fire demand (13), a water pump (11), foam liquid (14), a foam liquid pump (10), a gas adjusting valve (7), a water adjusting valve (8), a foam liquid adjusting valve (9) and a fire fighting water branch (4) and further comprises a self designed gas absorber (15) and a gas liquid separation section (3) which are both installed in a cylinder body (15). By means of the characteristic that solubility of gas in water increases with pressure, the gas is absorbed in fire fighting liquid under high pressure, the absorbed gas is released from the liquid with decrease of the pressure, the initial diameter is in nanometer grade, the foam stabilized in the nanometer grade is automatically and evenly distributed, so that foaming agent using quantity is remarkably reduced, and pollution to environment is reduced. Free gas is separated in the gas liquid section (3) and is not sprayed out from the fire fighting water branch, and the technical problem that post-fire immediate onsite rescue is affected caused by surplus air combustion support or the asphyxiating gas field is resolved.
Description
Technical field
The present invention relates to the security against fire facility, specifically is a kind of fixed froth installation.
Background technology
The explosion accident of different scales and fire incident etc. all can take place every year in China; the explosive fire accident accident on ground such as building, warehouse, factory, Craft in Chemical Industrial Area, forest for example; produce a large amount of fire-fighting waste water, along with environmental protection requirement improves, become very important pollution sources.
Use fire foam in recent years in a large number, improved fire-fighting efficiency, fire extinguishing effect for the category-B fire is more obvious, but also bring some side effects, especially the fire-fighting waste water water yield of Craft in Chemical Industrial Area is big, and is mixed with a large amount of various complicated organic matter and noxious material, complicated component, control bad meeting and enter urban water supply system, river, river, lake, sea and lithic drainage, cause water environment pollution.
Existing technology: blowing agent is various surfactants, and consumption is high, and contaminated environment own has increased the dissolving of oiliness organic matter in fire-fighting waste water simultaneously, has aggravated the pollution of fire-fighting waste water.In order to form foam, the device of existing multiple mixed foaming uses inert gas or air, and the method for foaming is mixing method, does not see gas is under high pressure absorbed, and discharges the device that forms foam under the normal pressure, and there is following problem in existing mixed foaming method:
1. the blowing agent use amount is big, and the water quality of fire-fighting waste water is degenerated, and has strengthened pollution and difficulty of governance thereof.
2. the compressed air of Shi Yonging or compressed inert are most of except forming foam sprays into the scene of a fire with free state, and compressed air causes combustion-supporting influence fire extinguishing effect; Inert gas causes the choke damp field, and fire extinguishing back rescue personnel can not enter the scene in the very first time and sue and labour.
3. the foam size of Xing Chenging is big, malleation mixed foaming method especially, and when foam enters the normal pressure scene of a fire, the rapid swelling fracture of foam influences the stability of foam.
4. the mixed foaming method needs the foaming agent of high concentration, big foaming tolerance and stirring energy consumption, contaminated environment, fire extinguishing cost height.
The China people Department of Intellectual Property's disclosed application number on April 29th, 2010 that benefits the nation altogether is CN201010162713.X, name is called the patent of invention of " pressure-storage premix type water mist foam fire extinguishing apparatus for ships ", and this device comprises gas cylinder, storage tank, flexible pipe, reel and thin water smoke foam nozzle; The tank top installed inside has the foam dope bottle, and the foam dope bottle is being communicated with pressurized gas inlet, and high pressure entry connects gas cylinder by high-pressure air pipe; Foam dope bottle outlet at bottom is equipped with triple valve; The downward outlet of triple valve is communicated with the foam dope shower nozzle by pipe fitting, and water is housed in the storage tank, and the water level liquid level is positioned at the gap place, and shower nozzle is positioned at storage and irritates below the liquid level; The outlet to the right of triple valve is positioned at storage and irritates more than the liquid level; The outlet left of triple valve is communicated with control valve by pipe fitting.This invention compact conformation, volume is little, fire extinguishing effectiveness is efficient, and fast moving on the flag-on-convenience vessel is used in time pouncing on initial stage and bigger fire; Adopt two foam dope shower nozzles 360 degree that foam dope is sprayed in the entry, and the gases at high pressure that spray subsequently carry out secondary to mixed liquor and mix, proportion speed mixes more even.
Intellectual Property Right Bureau of the RPC's disclosed application number on September 7th, 2005 is CN200420082250.6, name is called the utility model patent of " compressed-air type A foam extinguishing device ", and this fixed froth installation is by water pump, foam proportioning unit, air compressor, big gun air and liquid mixer, big gun flow spoiler, rifle air and liquid mixer, rifle flow spoiler, fire water monitor, fire-fighting lance etc.The pressure water source that water pump the provides foam proportioning unit of flowing through mixes the mixed liquor of formation to scale with class A foam liquid in the device; big gun with or rifle with air and liquid mixer in the air that provided by air compressor of adding; mixed liquor-compressed air the two phase flow that forms again through big gun with or rifle stir the back by fire water monitor or fire-fighting lance injection compressed air class A foam, to reach superior fire extinguishing and the effect of thermal insulation protection with flow spoiler.
Intellectual Property Right Bureau of the RPC's disclosed application number on July 26th, 2006 is CN200610038368.2, name is called the patent of invention of " compressed air foam fire-extinguishing apparatus ", this device comprises water pump, foam liquid tank, air compressor, wherein the air feed end of air compressor connects the air inlet of foam liquid tank by the valve control piper, the outlet of foam liquid tank crosses into water bubble liquid mixed flow pipeline with exit of pump by the pressure water line that the valve control piper constitutes by the foam solution pipeline that the valve control piper constitutes, the air feed end of air compressor also crosses into the compressed-air foam liquid pipeline that connects the fire-fighting Injection Facilities by the compressed air line that the valve control piper constitutes with water bubble liquid mixed flow pipeline, realizes the mixing of compressed-air foam.
Gases at high pressure in the above-mentioned patent are mainly used in driving force, and it mainly is the method that relies on gas-liquid mixed that foam produces, and this method no matter is in negative pressure or all there is following defective in direct draught:
1. fire water together sprays with the gas that does not form foam, if compressed air then plays combustion-supporting effect; If inert gas then causes the atmosphere of suffocating after the fire extinguishing, the rescue personnel can't enter the scene immediately and sue and labour and let slip a golden opportunity.
2. with the method for gas-liquid mixed, fire-fighting liquid is established foam before entering fire-fighting lance, thereby fire-fighting liquid apparent density is very little, and the inertia that leaves behind the hydraulic giant is also just little, so jet length is short.
3. blowing agent and foaming gas consumption are big, have increased environmental pollution and fire extinguishing cost.
4. the one-tenth bubble size of gas-liquid mixed foaming is big, and stability is not enough.
Summary of the invention
Still do not have at present otherwise effective technique and solve the side effect that foam fire-fighting brings, particularly alleviate the pollution to environment.The objective of the invention is to overcome the deficiencies in the prior art part, designed special construction utilizes the solubility with pressure of gas in water to increase and the characteristic of increase, under high pressure with GAS ABSORPTION in fire-fighting liquid, to discharge initial diameter in the gas from liquid be nanoscale along with pressure reduces to absorb, be stabilized in micron-sized foam, and evenly distribute automatically, even in a drop, also can separate out bubble, thereby make foaming agent consumption significantly reduce, reduced environmental pollution; Free gas separates in the gas-liquid separation section, can not spray with fire-fighting lance, has solved the technical barrier of suing and labouring in instant scene, unnecessary air-breathing or asphyxiant gas field influence fire extinguishing back, has improved fire-fighting efficiency, has reduced cost, is conducive to environmental protection; Further advantage is that the liquid-tight degree of fire-fighting increases, the exit momentum fire, thus range strengthens.Designed material filling type GAS ABSORPTION structure provides enough mass transfer boundaries, can absorb gas rapidly.
At the deficiencies in the prior art part, the invention provides a kind of fixed froth installation, the setting of the packing layer in this device (2) and gas-liquid segregation section (3) is the core summary of the invention.
This device comprises inert gas steel cylinder (12), fire demand water (13), water pump (11), foam solution (14), foam pump (10), gas control valve (7), water regulating valve (8), foam solution control valve (9), fire-fighting lance (4), it is characterized in that: this fixed froth installation also comprises one and water, the distributor that the two-phase mixture of foam solution and gas is connected with pipeline (1), described distributor (1) enters cylindrical shell (15) from the top of cylindrical shell (15), be provided with packing layer (2) below the distributor (1), be gas-liquid separation section (3) below this packing layer (2), the control valve (5) of exhaust-valve (6) and fire-fighting lance (4) is equipped with in the bottom of cylindrical shell (15), is connected with flexible pipe between fire-fighting lance (4) and the control valve (5).
Described fixed froth installation is characterized in that: the used filler of described packing layer (2) is wherein one or more the combination that annular is stacked filler, corrugated plate regular packing, tube bank.
Described fixed froth installation, it is characterized in that: described gas-liquid separation section (3) and packing layer (2) are installed in the same cylindrical shell (15), or gas-liquid separator is set separately, be preferably gas-liquid separation section (3) and packing layer (2) is installed in the same cylindrical shell (15).
Described fixed froth installation is characterized in that: described foam solution (14) is albumen, fluorocarbon surfactant, through the wherein one or more combination of surface-treated receiving/micro mist agent.
Described fixed froth installation is characterized in that: described inert gas steel cylinder (12), and wherein inert gas is a kind of of carbon dioxide gas, nitrogen, preferably carbon dioxide gas; Inert gas can replace with air, and this moment, steel cylinder replaced with air compressor.
Gas control valve in the described fixed froth installation (7), water regulating valve (8), foam solution control valve (9) can adjustments of gas, the ratio of water, foam solution, make it adapt to different extinguishment requirements.
It still is inert gas that gas in the described fixed froth installation is selected air for use, use which kind of inert gas to decide according to different extinguishment requirements and economic indicator.
Packing layer in the described fixed froth installation (2) is the core component of realizing the technical program, and is long-pending in order to the mass transfer phase interphase that provides liquid to absorb gas, and gas can be dissolved in the liquid rapidly.
The mixing of fire demand water, foam solution is to cross and the effect of distributor by pipeline in the described fixed froth installation, further mixes at packing layer to reach even.
Gas-liquid separation section (3) in the described fixed froth installation also is key member, reserve enough spaces in the cylindrical shell bottom, utilize gravity to realize separating of gas and liquid, remove those be free between the drop free gas and owing to mix the air pocket cause, this is because atmosphere bubbles out fire-fighting lance and namely can break, wherein gas just becomes free gas, influences the fire-fighting process.In order to reduce the fixed froth installation volume, preferred scheme is that gas-liquid separation section (3) is installed in the same cylindrical shell with packing layer.
It is fixed that the kind of the used foam solution of described fixed froth installation is come according to extinguishment requirement.
The present invention compares with existing technology and has the following advantages and good effect:
1. the main beneficial effect of the present invention is: the consumption that has reduced fire foam enters the scene of a fire with the free gas of having eliminated no foaming effect, solved current needing to be resolved hurrily and prior art insurmountable technical problem still: blowing agent aggravation environmental pollution and inertia free gas in the fire-fighting waste water form the atmosphere of suffocating, and the rescue personnel can't enter the scene immediately and sue and labour and let slip a golden opportunity.Be example with the carbon dioxide, be 1MP in gauge pressure, the volume ratio of absorbed carbon dioxide and water was 6: 1 when temperature was 25 ℃, enter under constant-pressure and high-temperature, all to separate out basically behind the scene of a fire and be bubble, can be the stability that guaranteed foam at 50% o'clock of usual amounts at foaming agent, realize same fire extinguishing effect.Gas usage is hybrid below 20% of institute's gas consumption that foams, and has eliminated the influence of free gas, aspect environmental protection and energy saving marked improvement is arranged.
2. the present invention to the beneficial effect of fire extinguishing procedure is: the gas of absorption is released to endothermic process, is conducive to scene of a fire cooling; The liquid-tight degree of fire-fighting increases, and exit momentum is big, thereby range strengthens.
3. the further beneficial effect of the present invention is: enter the scene of a fire owing to reduced the consumption of fire foam with the free gas of having eliminated no foaming effect, and the required energy consumption of mixing method foaming, thereby the fire extinguishing cost is reduced.
Description of drawings
Fig. 1 is a kind of fixed froth installation, wherein: 1---distributor, 2---packing layer, 3---the gas-liquid separation section, 4---fire-fighting lance, 5---the fire-fighting lance control valve, 6---exhaust-valve, 7---gas control valve, 8---water regulating valve, 9---the foam solution control valve, 10---foam pump, 11---water pump, 12---the inert gas steel cylinder, 13---fire demand water, 14---foam solution, 15---cylindrical shell.
Concrete embodiment
The invention will be further described below in conjunction with embodiment, but protection domain is not limited thereto.
Embodiment 1
Commercially available 3% type fluoro-protein foam concentrate mixes CO with water with 1.5%
2The steel cylinder air feed, by the ratio of water regulating valve (8), foam solution control valve (9) adjusting protein foam concentrate and water, gas control valve (7) is regulated steel cylinder pressure 0.5MPa, CO as shown in Figure 1
2Gas flow: discharge is 3: 1, changes this ratio of steel cylinder pressure and changes thereupon.
Commercially available 3% type fluoro-protein foam concentrate mixes with water with 1.5%, compressor is for air, pass through the ratio of water regulating valve (8), foam solution control valve (9) adjusting protein foam concentrate and water as shown in Figure 1, compressor gas supplied pressure 0.5MPa, air mass flow: discharge is 1: 20, changes this ratio of compressed air pressure and changes thereupon.
Claims (5)
1. fixed froth installation, comprise inert gas steel cylinder (12), fire demand water (13), water pump (11), foam solution (14), foam pump (10), gas control valve (7), water regulating valve (8), foam solution control valve (9), fire-fighting lance (4), it is characterized in that: this fixed froth installation also comprises one and water, the distributor that the two-phase mixture of foam solution and gas is connected with pipeline (1), described distributor (1) enters cylindrical shell (15) from the top of cylindrical shell (15), be provided with packing layer (2) below the distributor (1), be gas-liquid separation section (3) below this packing layer (2), the control valve (5) of exhaust-valve (6) and fire-fighting lance (4) is equipped with in the bottom of cylindrical shell (15), is connected with high-pressure hose between fire-fighting lance (4) and the control valve (5).
2. fixed froth installation according to claim 1 is characterized in that: the used filler of described packing layer (2) is wherein one or more the combination that annular is stacked filler, corrugated plate regular packing, tube bank.
3. fixed froth installation according to claim 1, it is characterized in that: described gas-liquid separation section (3) and packing layer (2) are installed in the same cylindrical shell (15).
4. fixed froth installation according to claim 1 is characterized in that: described foam solution (14) is for albumen, fluorocarbon surfactant, through the wherein one or more combination of surface-treated receiving/micro mist agent.
5. fixed froth installation according to claim 1, it is characterized in that: described inert gas steel cylinder (12), wherein inert gas is a kind of of carbon dioxide gas, nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110336463.1A CN102500080B (en) | 2011-10-31 | 2011-10-31 | Foam fire extinguisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110336463.1A CN102500080B (en) | 2011-10-31 | 2011-10-31 | Foam fire extinguisher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102500080A CN102500080A (en) | 2012-06-20 |
| CN102500080B true CN102500080B (en) | 2013-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110336463.1A Expired - Fee Related CN102500080B (en) | 2011-10-31 | 2011-10-31 | Foam fire extinguisher |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105879269A (en) * | 2016-06-03 | 2016-08-24 | 四川川消消防车辆制造有限公司 | Compressed nitrogen and foam fire-extinguishing system |
| CN108525168B (en) | 2017-03-01 | 2021-05-28 | 中国石油化工股份有限公司 | Foam generating method and application thereof and fire extinguishing method |
| CN113018722A (en) * | 2019-12-25 | 2021-06-25 | 应急管理部消防产品合格评定中心 | Airborne bi-component water-based fire extinguishing device for unmanned aerial vehicle |
| CN112295148B (en) * | 2020-09-28 | 2021-12-28 | 九江中船长安消防设备有限公司 | Air foam fire extinguishing device with high stability for warships |
| CN112843544B (en) * | 2020-12-29 | 2022-04-15 | 天津润木科技有限公司 | Portable high-efficient foaming device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5909775A (en) * | 1997-09-10 | 1999-06-08 | Grindley; Robert M. | Dual chamber foam pump |
| DE10132326B4 (en) * | 2001-07-02 | 2004-05-06 | Schmitz Gmbh | Fire fighting device with compressed air foam |
| CN2710690Y (en) * | 2004-05-26 | 2005-07-20 | 公安部上海消防研究所 | Forced foamed foam fire extinguishing appts. using fire fighting gas |
| CN201668905U (en) * | 2010-04-29 | 2010-12-15 | 中国科学技术大学 | Air-foam fire extinguishing device |
| CN101920086B (en) * | 2010-09-03 | 2013-06-05 | 中国石油化工股份有限公司 | Non-premixed pressure vessel with proportionally mixed foam and fire extinguisher and method thereof |
| CN201912669U (en) * | 2010-12-31 | 2011-08-03 | 西安新竹防灾救生设备有限公司 | Balanced proporting system |
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| CN102500080A (en) | 2012-06-20 |
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