CN102553116A - Thin water mist fire extinguishing system - Google Patents
Thin water mist fire extinguishing system Download PDFInfo
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- CN102553116A CN102553116A CN2010105926874A CN201010592687A CN102553116A CN 102553116 A CN102553116 A CN 102553116A CN 2010105926874 A CN2010105926874 A CN 2010105926874A CN 201010592687 A CN201010592687 A CN 201010592687A CN 102553116 A CN102553116 A CN 102553116A
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- water
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- valve
- extinguishing system
- pump
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 239000003595 mist Substances 0.000 title claims abstract description 28
- 239000007921 spray Substances 0.000 claims abstract description 12
- 239000000779 smoke Substances 0.000 claims description 17
- 239000008400 supply water Substances 0.000 claims description 16
- 230000000694 effects Effects 0.000 abstract description 7
- 239000002245 particle Substances 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization 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 relates to a thin water mist fire extinguishing system comprising a filter, a water tank, a water supply pump, a water pump control valve, zone valves, water mist spray nozzles and an alarm device. One end of the filter is connected with a water source through a water source valve, and the other end of the filter is connected with the water tank through a pipeline. One end of the water supply pump is connected with the water tank through the pipeline, and the other end of the water supply pump is connected with the zone valves through the pipelines. The water pump control valve is connected with the water supply pump, the zone valves and the alarm device respectively through electric signals. The water mist spray nozzles are connected with the zone valves through the pipelines. Compared with the prior art, the sum of the volume of water particles with the diameters of less than 200 MMum in water mist jet flow sprayed by the thin water mist fire-extinguishing system is not less than 90% of the total volume, the size of water drops of the thin water mist is small, and the thin water mist has large specific surface area, high density and good smoke-removing effect.
Description
Technical field
The present invention relates to a kind of fire extinguishing system, especially relate to a kind of fine water mist fire-extinguishing system.
Background technology
Water spray fire extinguish system of the prior art mainly comprises fixed and the semi-fixed type system.Fixed water spray fire extinguish system; Partly form by fire water pump house, wet type drench valve and high speed water mist shower nozzle and siamese fire department connection etc., during breaking out of fire, warning such as the fire detector that lays along power cable tunnel such as temperature sensing cable; The fireproof door that the fire compartment of breaking out of fire is closed in interlock cuts off; Open electric contact drench valve in the corresponding fire compartment simultaneously, waterfog head ejects high-pressure water mist, to reach cooling, cool off, suffocate and finally to put out the purpose of fire in the fire compartment.Fixed water injection system has response rapidly, the advantage of good extinguishing effect, but number of devices such as waterfog head, drench valve and fire pump are many in system's composition, and investment is big, and has increased a large amount of daily management maintaining work.Simultaneously, because the increase greatly of fire-fighting wastewater flow rate, make draining pump and all corresponding increase of waste water sump in the electric power tunnel, fire pump room and draining pump house take up an area of big, have increased design, difficulty of construction.
The semi-fixed type water injection system and the fixed main distinction are not to be with fire pump in the system.During breaking out of fire, fire detector is reported to the police, and corresponding fireproof door is closed in interlock, simultaneously fire signal is delivered to relevant fire department.Fire Department sends fire fighting truck, through siamese fire department connection water is delivered in the tunnel from the outdoor fire hydrant water intaking by fire fighting truck, implements fire extinguishing through waterfog head.The semi-fixed type system is not owing to itself establish fire pump, so during fire, system can not automatic sprinkling fire-extinguishing, has lost the most opportune time that puts out initial fire disaster.
The fire-fighting principle of water injection system be through water smoke surface cool, suffocate and blocking radiant heat to reach fire extinguishing and to prevent the purpose that fire draws out.System utilizes high voltage power and special waterfog head; Moisture is cleaved into the very little droplet of diameter, makes it meet the gasification rapidly of heat back, produce very big action face; (1 premium on currency becomes steam to make heat absorption efficient reach maximum; Need to absorb the heat of 335KJ), be that the burning surface temperature descends rapidly, reach cooling effect; Because fogdrop diameter is little, meet the heat back rapid evaporator expansion of water smoke (about more than 1640 times), effectively get rid of the air in the scene of a fire; And form screen around in the scene of a fire; Intercept the outer air in the scene of a fire and import, and dilute near the airborne oxygen content fire, make its generation reaction that suffocates; Research shows; The heat that burning discharges, quite major part is transmitted in the space with forms of radiation towards periphery, and the water smoke that water mist system produces is because fogdrop diameter is very little; Can effectively absorb and intercept the burning things which may cause a fire disaster radiant heat; Thereby safe escape and fire extinguishing personnel that can the help desk personnel rescue near the scene of fire, and resist the radiant heat spot fire that ignites effectively, effectively prevent spreading of fire.
In the conventional design, like the design of the water spray of main transformer, waterfog head generally be arranged in as far as possible the protected object body around and the top, in the hope of good envelope effect.It is less that but the electric power tunnel space compares; Cable testing bridge is layered arrangement again; And the cable laying on every layer of crane span structure is also comparatively dense, and the cable that multilayer is arranged has bigger barrier effect to spraying, as still with top or the side of nozzle layout of sprinkler at cable; Certainly can not satisfy that standard is desired to make water smoke direct injection, covering, and the requirement of envelope multi-layer cable fully.
Summary of the invention
The object of the invention is exactly for the defective that overcomes above-mentioned prior art existence a kind of excellent fine water mist fire-extinguishing system of smoke abatement effect of putting out a fire to be provided.
The object of the invention can be realized through following technical scheme:
A kind of fine water mist fire-extinguishing system; It is characterized in that; This fire extinguishing system comprises filter, water tank, supply-water pump, control valve for water pump, zone valve, waterfog head and warning device, and valve is connected with the water source described filter one end through the water source, and the other end is connected with water tank through pipeline; Described supply-water pump one end is connected with water tank through pipeline; The other end is through pipeline join domain valve, and described control valve for water pump is connected respectively with supply-water pump, zone valve and warning device through the signal of telecommunication, and described waterfog head is connected with zone valve through pipeline.
Be provided with the pump water inlet valve between described water tank and the supply-water pump.
Pressure sensor, pump discharge valve and feed water valve are set between described supply-water pump and the zone valve.
Pressure gauge and pressure switch are set on the described zone valve.
Described waterfog head is the open type fine mist spray head.
Described warning device comprises fire alarm control unit, smoke fire detector and cable formula heat fire detector; Described fire alarm control unit is connected with control valve for water pump through the signal of telecommunication, and described smoke fire detector and cable formula heat fire detector are connected with fire alarm control unit through the signal of telecommunication.
Compared with prior art, the present invention has the following advantages:
(1) heavy pressure fine spray is under shower nozzle minimum working pressure power, and Dv0.9 is less than 200 for the distribution of water smoke cumulative volume
μ m, promptly in the jet spray of shower nozzle ejection, diameter is not less than 90% of cumulative volume less than the water particle volume sum of 200 μ m;
(2) water droplet size of thin water smoke is very little, has very big specific area and very high density, and fine water mist fire-extinguishing system mainly is to stamp out a fire by vaporization absorbing and cooling temperature effect and starvation smothering action;
(3) thin water smoke also has good smoke abatement effect; Because thin water smoke specific area speed big, in light weight, that in air, land is slow; Long with flue gas time of contact, contact area is big, can absorb smog and poison gas in the scene of a fire in a large number, in fire extinguishing; Can protect cable, electrical equipment not to receive " secondary damage " of fire, make things convenient for evacuating personnel and strength of attack to implement to put out a fire to save life and property near burning things which may cause a fire disaster.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure, 1 is that water source valve, 2 is that filter, 3 is that water tank, 4 is that pump water inlet valve, 5 is that supply-water pump, 6 is that pressure sensor, 7 is that pump discharge valve, 8 is that control valve for water pump, 9 is that feed water valve, 10 is that zone valve, 11 is that control valve, 12 is that open type fine mist spray head, 13 is that smoke fire detector, 14 is that cable formula heat fire detector, 15 is that pressure switch, 16 is that Pressure gauge, 17 is a fire alarm control unit.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is elaborated.
Embodiment
A kind of fine water mist fire-extinguishing system; Its structure is as shown in Figure 1, and this fire extinguishing system comprises filter 2, water tank 3, supply-water pump 5, control valve for water pump 8, zone valve 10, open type fine mist spray head 12 and warning device, and valve 1 is connected with the water source end of filter 2 through the water source; Control the entering size of current through water source valve 1; The other end of filter 2 is connected with water tank 3 through pipeline, and the clear water after the filtration can be stored in the water tank 3, and an end of supply-water pump 5 is connected with water tank 3 through pipeline; The other end is through pipeline join domain valve 10; Be provided with pump water inlet valve 4 between water tank 3 and the supply-water pump 5,, pressure sensor 6, pump discharge valve 7 and feed water valve 9 be set between supply-water pump 5 and the zone valve 10 in order to the control inflow.
Control valve for water pump 8 is connected respectively with supply-water pump 5, zone valve 10 and warning device through the signal of telecommunication, and open type fine mist spray head 12 is connected with zone valve 10 through pipeline, also is provided with control valve 11 on this segment pipe, and zone valve 10 is provided with pressure switch 15 and Pressure gauge 16.
The warning device that native system uses comprises fire alarm control unit 17, smoke fire detector 13 and cable formula heat fire detector 14; Fire alarm control unit 17 is connected with control valve for water pump 8 through the signal of telecommunication, and smoke fire detector 13 and cable formula heat fire detector 14 are connected with fire alarm control unit 17 through the signal of telecommunication.
Claims (6)
1. fine water mist fire-extinguishing system; It is characterized in that; This fire extinguishing system comprises filter, water tank, supply-water pump, control valve for water pump, zone valve, waterfog head and warning device, and valve is connected with the water source described filter one end through the water source, and the other end is connected with water tank through pipeline; Described supply-water pump one end is connected with water tank through pipeline; The other end is through pipeline join domain valve, and described control valve for water pump is connected respectively with supply-water pump, zone valve and warning device through the signal of telecommunication, and described waterfog head is connected with zone valve through pipeline.
2. a kind of fine water mist fire-extinguishing system according to claim 1 is characterized in that, is provided with the pump water inlet valve between described water tank and the supply-water pump.
3. a kind of fine water mist fire-extinguishing system according to claim 1 is characterized in that, pressure sensor, pump discharge valve and feed water valve are set between described supply-water pump and the zone valve.
4. a kind of fine water mist fire-extinguishing system according to claim 1 is characterized in that, Pressure gauge and pressure switch are set on the described zone valve.
5. a kind of fine water mist fire-extinguishing system according to claim 1 is characterized in that, described waterfog head is the open type fine mist spray head.
6. a kind of fine water mist fire-extinguishing system according to claim 1; It is characterized in that; Described warning device comprises fire alarm control unit, smoke fire detector and cable formula heat fire detector; Described fire alarm control unit is connected with control valve for water pump through the signal of telecommunication, and described smoke fire detector and cable formula heat fire detector are connected with fire alarm control unit through the signal of telecommunication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105926874A CN102553116A (en) | 2010-12-17 | 2010-12-17 | Thin water mist fire extinguishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105926874A CN102553116A (en) | 2010-12-17 | 2010-12-17 | Thin water mist fire extinguishing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102553116A true CN102553116A (en) | 2012-07-11 |
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Family Applications (1)
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| CN2010105926874A Pending CN102553116A (en) | 2010-12-17 | 2010-12-17 | Thin water mist fire extinguishing system |
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| CN (1) | CN102553116A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055460A (en) * | 2012-12-24 | 2013-04-24 | 广州市设计院 | High pressure water mist fire extinguishing system used for open-type indoor historical relic historical site |
| CN103306708A (en) * | 2013-05-29 | 2013-09-18 | 武汉广益交通科技股份有限公司 | Tunnel energy-saving and firefighting system for cold region |
| CN103644568A (en) * | 2013-12-24 | 2014-03-19 | 河南海力特机电制造有限公司 | Cooling and dust-removing device used on cremator and achieving functions through high-pressure water mist |
| CN103967523A (en) * | 2014-04-07 | 2014-08-06 | 泰州市兴东煤矿机械制造有限公司 | Smoke alarm system under mine |
| CN104667459A (en) * | 2015-03-17 | 2015-06-03 | 国家电网公司 | Sub-regional protection type substation fire fighting monitoring and early warning and fire fighting system |
| CN106943699A (en) * | 2017-04-07 | 2017-07-14 | 天津神封科技发展有限公司 | High-pressure aerial fog linkage automatic fire extinguishing system |
| CN109550177A (en) * | 2018-12-11 | 2019-04-02 | 武汉理工大学 | A kind of jet stream induction type fine water mist fire-extinguishing system |
| CN110368615A (en) * | 2019-07-24 | 2019-10-25 | 国网湖南省电力有限公司 | A kind of fire extinguishing system and extinguishing method applied to power cable tunnel |
| CN112539166A (en) * | 2020-11-06 | 2021-03-23 | 江苏徐工工程机械研究院有限公司 | Hydraulic control system and dredging equipment |
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2010
- 2010-12-17 CN CN2010105926874A patent/CN102553116A/en active Pending
Patent Citations (4)
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| US5113944A (en) * | 1990-12-21 | 1992-05-19 | Morita Pump Kabushiki Kaisha | Simple fire extinguishing apparatus |
| CN2520183Y (en) * | 2001-12-05 | 2002-11-13 | 南京消防器材厂 | Spray automatic fireextinguishing device |
| CN2551274Y (en) * | 2002-06-11 | 2003-05-21 | 浙江大学 | Fixed fine mist automatic fire extinguisher capable of directly high-pressure atomizing |
| CN101699031A (en) * | 2009-11-03 | 2010-04-28 | 大连海事大学 | System for automatically extinguishing fire in long tunnel and extinguishing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 中华人民共和国公安部消防局: "《中国消防手册》", 31 December 2007, 上海科学技术出版社 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055460A (en) * | 2012-12-24 | 2013-04-24 | 广州市设计院 | High pressure water mist fire extinguishing system used for open-type indoor historical relic historical site |
| CN103055460B (en) * | 2012-12-24 | 2016-03-23 | 广州市设计院 | For the high-pressure fine water mist fire-extinguishing system of the indoor cultural sight of open type |
| CN103306708A (en) * | 2013-05-29 | 2013-09-18 | 武汉广益交通科技股份有限公司 | Tunnel energy-saving and firefighting system for cold region |
| CN103644568A (en) * | 2013-12-24 | 2014-03-19 | 河南海力特机电制造有限公司 | Cooling and dust-removing device used on cremator and achieving functions through high-pressure water mist |
| CN103967523A (en) * | 2014-04-07 | 2014-08-06 | 泰州市兴东煤矿机械制造有限公司 | Smoke alarm system under mine |
| CN104667459A (en) * | 2015-03-17 | 2015-06-03 | 国家电网公司 | Sub-regional protection type substation fire fighting monitoring and early warning and fire fighting system |
| CN106943699A (en) * | 2017-04-07 | 2017-07-14 | 天津神封科技发展有限公司 | High-pressure aerial fog linkage automatic fire extinguishing system |
| CN109550177A (en) * | 2018-12-11 | 2019-04-02 | 武汉理工大学 | A kind of jet stream induction type fine water mist fire-extinguishing system |
| CN110368615A (en) * | 2019-07-24 | 2019-10-25 | 国网湖南省电力有限公司 | A kind of fire extinguishing system and extinguishing method applied to power cable tunnel |
| CN112539166A (en) * | 2020-11-06 | 2021-03-23 | 江苏徐工工程机械研究院有限公司 | Hydraulic control system and dredging equipment |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA SHANGHAI ELECTRIC Free format text: FORMER OWNER: SHANGHAI JIULONG ELECTRIC POWER SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20121220 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121220 Address after: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant after: Shanghai Electric Power Corporation Applicant after: State Grid Corporation of China Applicant after: Shanghai Electric Power Communication Co., Ltd. Address before: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant before: Shanghai Electric Power Corporation Applicant before: Shanghai Jiulong Electric Power Co., Ltd. |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120711 |
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| RJ01 | Rejection of invention patent application after publication |