CN101737076A - Sectional type tunnel smoke exhaust system and method by water curtain separation - Google Patents
Sectional type tunnel smoke exhaust system and method by water curtain separation Download PDFInfo
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- CN101737076A CN101737076A CN201010028981A CN201010028981A CN101737076A CN 101737076 A CN101737076 A CN 101737076A CN 201010028981 A CN201010028981 A CN 201010028981A CN 201010028981 A CN201010028981 A CN 201010028981A CN 101737076 A CN101737076 A CN 101737076A
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Abstract
The invention relates to a sectional type tunnel smoke exhaust system by water curtain separation, comprising a smoke exhaust duct, a smoke exhaust vent and an air valve. The smoke exhaust duct is positioned on the top or the side wall of a tunnel; the smoke exhaust vent is communicated with the smoke exhaust duct; the air valve is installed on the smoke exhaust vent; and the top or the side wall of the tunnel is provided with devices used for forming fire control water curtains. The invention also provides a smoke exhaust method which uses the sectional type tunnel smoke exhaust system. The smoke exhaust method comprises the following steps of: starting the devices which are used for forming the fire control water curtains and positioned on both sides of a fire source to form the water curtains and separating smoke gas generated by the fire source between the two water curtains; and starting the smoke exhaust vent which is positioned near the fire source to exhaust smoke. The invention has the advantages of optimizing the smoke exhaust effect of a highway tunnel, improving the smoke exhaust efficiency under the condition of the same smoke exhaust configuration, reducing the range of smoke gas influence, effectively controlling the diffusion of smoke gas within 200 meters, greatly reducing the heat radiation near the fire source and supplying better safety space for people escape and fire control.
Description
Technical field
The present invention relates to a kind of segmented long tunnel smoke evacuation technology that adopts water curtain to isolate, the smoke evacuation when being mainly used in fire in the bigger tunnel of growing up of fire risk.
Background technology
Highway tunnel is a hemi-closure space, comburant mostly is gasoline, diesel oil etc., in case breaking out of fire, high temperature that is produced and poison gas are extremely difficult in time to be got rid of, can cause very big injury to facility and the personnel that are in the underground space, easily cause serious accident, so ventilation smoke exhaust is the most important measure of tunnel fire-fighting.In highway tunnel, suitable fume control system must be arranged.For the tunnel of growing up, along the tunnel vertically at the top or other positions smoke vent is set, vertically offering a series of smoke vent openings along smoke vent is a kind of effective tunnel Flue Gas Control Technology of generally acknowledging in the world.At present a lot of tunnels have adopted above-mentioned smoke exhaust method, but find in the actual engineering because the vertically existence of stack effect when wind and fire in the tunnel, make flue gas constantly vertically spread, thereby make that the smoke exhaust efficiency of smoke vent opening is very low, can't get rid of the flue gas that fire produces effectively along the tunnel.
Summary of the invention
The objective of the invention is according to above-mentioned the deficiencies in the prior art part, a kind of sectional type tunnel smoke exhaust method that adopts water curtain to isolate is proposed, this method can effectively be controlled Flue Gas Diffusion in 200 meters scopes, for evacuating personnel and fire attack are created the safe space to greatest extent.
The object of the invention realizes being finished by following technical scheme:
A kind of sectional type tunnel smoke evacuation system that adopts water curtain to isolate comprises smoke vent, smoke vent opening that is communicated with smoke vent that is positioned at tunnel top or side wall and the air-valve that is installed on smoke vent opening; The top in tunnel or side wall are provided with the device that is used to form the fire-fighting water curtain.
The above-mentioned device that is used to form the fire-fighting water curtain is along tunnel longitudinal separation setting, and the distance between the neighboring devices is not more than 200 meters.
Be used to form the nozzle of device for being communicated with of fire-fighting water curtain with the water source.The water source is from the municipal water supply pipe network or be arranged at fire cistern in the tunnel, and the volume of fire cistern is the 50-100 cubic meter.From nozzle ejection can be the mixture of water or water and additive, have the additive can be so that the retaining cigarette effect of heat insulation of water curtain is better.
The two ends, tunnel are provided with the smoke evacuation wind tower that is communicated with smoke vent, are provided with smoke extractor exhaust fan in the smoke evacuation wind tower.Described smoke vent opening is provided with along tunnel longitudinal separation, and the smoke vent opening spacing is a 30-100 rice, and smoke vent area is 2-10 square metre.
The present invention also provides the smoke exhaust method that adopts above-mentioned sectional type tunnel smoke evacuation system, and the device that is used to form the fire-fighting water curtain of opening the burning things which may cause a fire disaster both sides forms water curtain, and the flue gas that burning things which may cause a fire disaster is produced is isolated between two water curtains; Unlatching is positioned near the smoke vent opening smoke evacuation the burning things which may cause a fire disaster.
Advantage of the present invention: optimize the highway tunnel smoke discharging effect, under identical smoke evacuation configuring condition, improve smoke exhaust efficiency, reduce the flue gas influence basin, effectively the control Flue Gas Diffusion is in 200 meters scopes, significantly reduce near the heat radiation the burning things which may cause a fire disaster, for personnel escape and fire attack provide safe space preferably.
Description of drawings
Accompanying drawing is a principle schematic of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing feature of the present invention and other correlated characteristic are described in further details, so that technician's of the same trade understanding:
As shown in drawings, label 1-10 represents respectively: fire cistern 1, fire pump 2, blender 3, drencher head 4, water curtain main 5, water curtain arm 6, tunnel 7, smoke vent 8, smoke vent opening 9, burning things which may cause a fire disaster 10.
The selection of above-mentioned each device parameter is as follows: the volume of fire cistern is the 50-100 cubic meter, spacing between the water curtain is a 100-200 rice, and the drencher head number is no less than 2, and the sectional area of smoke vent is 6-12 square metre, the spacing of smoke vent opening is a 30-100 rice, and the size of smoke vent opening is 2-10 square metre.Its concrete choosing value should be determined according to mode of transportation, fire risk, tunnel longitudinal gradient, tunnel height and section, required exhaust smoke level etc.
As shown in drawings, after water in the fire cistern 1 pressurizes by fire pump 2, (described additive is prior art heat insulation compound or a mixture commonly used at blender 3 places and water curtain additive, as the additive of the disclosed water for fire of CN88102935 etc.) mixing the back (can certainly not doping, in this case, blender can be set) the water curtain main 5 arranged by 7 total lengths along the tunnel flow into water curtain arm 6, ejection forms water curtain from the drencher head 4 that is arranged in the smoke vent below at last, and the flue gas that burning things which may cause a fire disaster 10 is produced is isolated between two water curtains.Simultaneously on the smoke vent 8 that sets up along 7 tops, tunnel, be positioned near the burning things which may cause a fire disaster smoke vent opening 9 and open and discharge fume, smoke vent opening 9 is opened closed by remote control mode.Position when 7 tops also are equipped with the fire location sniffer and determine that fire takes place in the tunnel.
Be provided with central control room in tunnel 7, it connects valve on above-mentioned fire detecting arrangement, smoke vent opening air-valve, water pump and the water curtain pipeline by sensor-based system.Specifically, central control room is determined fire location according to the fire detecting arrangement of tunnel top, is presented at after the warning on the monitor screen of tunnel central control room, and water curtain and smoke evacuation system enter the fire operational mode that sets in advance after artificial affirmation.This moment the valve open before and after the water pump, water pump is opened, the valve that is positioned on the fire-fighting water curtain arm of burning things which may cause a fire disaster upstream and downstream is opened simultaneously, water sprays from corresponding water spray nozzle.The water of nozzle ejection drops on the tunnel road surface, enters into the waste water pump house after collecting by the drainage system in roadside and discharges.
Claims (7)
1. a sectional type tunnel smoke evacuation system that adopts water curtain to isolate comprises smoke vent, smoke vent opening that is communicated with smoke vent that is positioned at tunnel top or side wall and the air-valve that is installed on smoke vent opening; It is characterized in that: the device that on the top in tunnel or side wall, is provided for forming the fire-fighting water curtain.
2. sectional type tunnel smoke evacuation system according to claim 1 is characterized in that: the device that is used to form the fire-fighting water curtain is along tunnel longitudinal separation setting, and the distance between the neighboring devices is not more than 200 meters.
3. sectional type tunnel smoke evacuation system according to claim 1 and 2 is characterized in that: the nozzle of the device that is used to form the fire-fighting water curtain for being communicated with the water source, the water source is from the municipal water supply pipe network or be arranged at fire cistern in the tunnel.
4. sectional type tunnel smoke evacuation system according to claim 3 is characterized in that: the volume of fire cistern is the 50-100 cubic meter.
5. according to the smoke evacuation system of claim 1 or 2 described sectional type tunnels, it is characterized in that: the two ends, tunnel are provided with the smoke evacuation wind tower that is communicated with smoke vent, are provided with smoke extractor exhaust fan in the smoke evacuation wind tower.
6. sectional type tunnel smoke evacuation system according to claim 1 and 2 is characterized in that: described smoke vent opening is provided with along tunnel longitudinal separation, and the smoke vent opening spacing is a 30-100 rice, and smoke vent area is 2-10 square metre.
7. adopt the smoke exhaust method of claim 1 or 2 described sectional type tunnel smoke evacuation systems, the device that is used to form the fire-fighting water curtain of opening the burning things which may cause a fire disaster both sides forms water curtain, and the flue gas that burning things which may cause a fire disaster is produced is isolated between two water curtains; Unlatching is positioned near the smoke vent opening smoke evacuation the burning things which may cause a fire disaster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010028981A CN101737076A (en) | 2010-01-15 | 2010-01-15 | Sectional type tunnel smoke exhaust system and method by water curtain separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010028981A CN101737076A (en) | 2010-01-15 | 2010-01-15 | Sectional type tunnel smoke exhaust system and method by water curtain separation |
Publications (1)
| Publication Number | Publication Date |
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| CN101737076A true CN101737076A (en) | 2010-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010028981A Pending CN101737076A (en) | 2010-01-15 | 2010-01-15 | Sectional type tunnel smoke exhaust system and method by water curtain separation |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296980A (en) * | 2011-08-13 | 2011-12-28 | 合肥科大立安安全技术股份有限公司 | Water mist fire-extinguishing system in railway tunnel and fire-extinguishing method thereof |
| CN103245029A (en) * | 2013-04-26 | 2013-08-14 | 西安建筑科技大学 | Breathing zone air supply and forced draft combined tunnel fire escape system |
| CN104533505A (en) * | 2014-12-23 | 2015-04-22 | 武汉大学 | Water mist tunnel smoke control system adopting spaced arrangement method |
| CN106523022A (en) * | 2016-12-27 | 2017-03-22 | 同济大学 | Tunnel fire extinguishing system based on water curtain shielding effects |
| CN106621117A (en) * | 2016-12-29 | 2017-05-10 | 天津市安睿森科技有限公司 | Intelligent tunnel fire extinguishing system based on PLC |
| CN108187283A (en) * | 2018-03-08 | 2018-06-22 | 公安部四川消防研究所 | A kind of Combined type firefighting drencher and the tunnel fire proofing separating system being made from it |
| CN108325132A (en) * | 2018-04-12 | 2018-07-27 | 刘盛均 | A kind of water curtain for fire-proof nozzle and the tunnel fire proofing separating system being made from it |
| CN111027176A (en) * | 2019-11-07 | 2020-04-17 | 武汉科技大学 | Method for calculating flue gas countercurrent length of tunnel side-direction key smoke discharge fire |
| CN111508248A (en) * | 2020-04-14 | 2020-08-07 | 山东交通学院 | Tunnel traffic accident water curtain warning method and system |
| CN113153406A (en) * | 2021-04-22 | 2021-07-23 | 中铁第五勘察设计院集团有限公司 | Tunnel system and tunnel smoke discharge control method |
| CN113565558A (en) * | 2021-07-06 | 2021-10-29 | 河北省高速公路延崇管理中心 | Segmented water mist device for partition protection of spiral tunnel and control system |
| CN113565553A (en) * | 2021-07-22 | 2021-10-29 | 中交第二公路工程局有限公司 | Ventilation system and general gas tunnel comprehensive rapid disposal system |
| CN114508376A (en) * | 2022-01-28 | 2022-05-17 | 中国矿业大学 | Intelligent blowing-sucking type air curtain smoke prevention and exhaust device for tunnel and operation method |
-
2010
- 2010-01-15 CN CN201010028981A patent/CN101737076A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296980A (en) * | 2011-08-13 | 2011-12-28 | 合肥科大立安安全技术股份有限公司 | Water mist fire-extinguishing system in railway tunnel and fire-extinguishing method thereof |
| CN103245029A (en) * | 2013-04-26 | 2013-08-14 | 西安建筑科技大学 | Breathing zone air supply and forced draft combined tunnel fire escape system |
| CN103245029B (en) * | 2013-04-26 | 2015-05-06 | 西安建筑科技大学 | Breathing zone air supply and forced draft combined tunnel fire escape system |
| CN104533505A (en) * | 2014-12-23 | 2015-04-22 | 武汉大学 | Water mist tunnel smoke control system adopting spaced arrangement method |
| CN106523022B (en) * | 2016-12-27 | 2019-06-11 | 同济大学 | Tunnel fire extinguishing system based on water curtain shielding action |
| CN106523022A (en) * | 2016-12-27 | 2017-03-22 | 同济大学 | Tunnel fire extinguishing system based on water curtain shielding effects |
| CN106621117A (en) * | 2016-12-29 | 2017-05-10 | 天津市安睿森科技有限公司 | Intelligent tunnel fire extinguishing system based on PLC |
| CN108187283A (en) * | 2018-03-08 | 2018-06-22 | 公安部四川消防研究所 | A kind of Combined type firefighting drencher and the tunnel fire proofing separating system being made from it |
| CN108325132B (en) * | 2018-04-12 | 2023-05-09 | 宁津美华工业有限公司 | Fire-fighting water curtain spray head and tunnel fireproof separation system composed of same |
| CN108325132A (en) * | 2018-04-12 | 2018-07-27 | 刘盛均 | A kind of water curtain for fire-proof nozzle and the tunnel fire proofing separating system being made from it |
| CN111027176A (en) * | 2019-11-07 | 2020-04-17 | 武汉科技大学 | Method for calculating flue gas countercurrent length of tunnel side-direction key smoke discharge fire |
| CN111508248A (en) * | 2020-04-14 | 2020-08-07 | 山东交通学院 | Tunnel traffic accident water curtain warning method and system |
| CN113153406A (en) * | 2021-04-22 | 2021-07-23 | 中铁第五勘察设计院集团有限公司 | Tunnel system and tunnel smoke discharge control method |
| CN113565558A (en) * | 2021-07-06 | 2021-10-29 | 河北省高速公路延崇管理中心 | Segmented water mist device for partition protection of spiral tunnel and control system |
| CN113565558B (en) * | 2021-07-06 | 2023-11-28 | 河北省高速公路延崇管理中心 | Segmented water mist device for partition protection of spiral tunnel and control system |
| CN113565553A (en) * | 2021-07-22 | 2021-10-29 | 中交第二公路工程局有限公司 | Ventilation system and general gas tunnel comprehensive rapid disposal system |
| CN114508376A (en) * | 2022-01-28 | 2022-05-17 | 中国矿业大学 | Intelligent blowing-sucking type air curtain smoke prevention and exhaust device for tunnel and operation method |
| CN114508376B (en) * | 2022-01-28 | 2023-01-10 | 中国矿业大学 | Intelligent blowing-sucking type air curtain smoke prevention and exhaust device for tunnel and operation method |
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Application publication date: 20100616 |