CN100396347C - Fire smoke-proof air curtain system with additional power - Google Patents
Fire smoke-proof air curtain system with additional power Download PDFInfo
- Publication number
- CN100396347C CN100396347C CNB2004100149756A CN200410014975A CN100396347C CN 100396347 C CN100396347 C CN 100396347C CN B2004100149756 A CNB2004100149756 A CN B2004100149756A CN 200410014975 A CN200410014975 A CN 200410014975A CN 100396347 C CN100396347 C CN 100396347C
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- Prior art keywords
- jet
- smoke
- air
- static pressure
- fire
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- 239000000779 smoke Substances 0.000 claims abstract description 25
- 230000003068 static effect Effects 0.000 claims abstract description 24
- 235000019504 cigarettes Nutrition 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 10
- 238000009792 diffusion process Methods 0.000 claims description 6
- 230000002265 prevention Effects 0.000 abstract description 7
- 239000003517 fume Substances 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 11
- 239000003546 flue gas Substances 0.000 description 11
- 238000009423 ventilation Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Respiratory Apparatuses And Protective Means (AREA)
- Ventilation (AREA)
Abstract
The present invention discloses an effective fire smoke-proof air curtain system with additional power for smoke prevention and smoke bay establishment by utilizing the characteristic that air curtains can effectively baffle fumes and combining the advantage that a building is provided with a fan. The present invention is characterized in that the present invention comprises a fan, a wind channel, a wind valve and a jet device, wherein the fan is arranged on the inlet of the wind channel of a building; the jet device is arranged in a smoke-proof position, and comprises a jet case and a static pressure flow-guiding case and a flow-guiding plate arranged in the jet case; a jet orifice is positioned at the bottom of the jet case, and is communicated with the outlet of the static pressure flow-guiding case whose inlet is provided with the wind valve communicated with the wind channel. The fan blows wind to the wind channel, and after the pressure of the blown wind is uniformed after entering the static pressure flow-guiding case, the wind is jetted from top to the lower front in a smoke area from the jet orifice under the guide action of the flow-guiding plate with the jet velocity of 15 m/s to 20 m/s, the jet thickness of 2.5cm to 4.5cm and the jet angle which forms an angle of 25 degrees to 35 degrees with a vertical line and is inclined to the smoke area so as to generate air curtains performing the function of preventing fire smoke from diffusing to non-fire areas.
Description
Technical field
The present invention relates to a kind of building fire fume-resisting system, be specifically related to a kind of additionaling power fire smoke-preventing air curtain system that utilizes air curtain to realize anti-hood.
Background technology
The existing building that has the air channel generally all is equipped with blower fan in the porch in air channel, and blower fan is blown in the air channel, again by the device that links to each other with the air channel to indoor forced ventilation, reach the purpose of improving the room ventilation effect, its function ratio is more single.Especially at some large-scale public places such as subway, market place builet below the ground and area of business in places such as the market more than 500 square metres, dance halls, forced ventilation is more necessary.
The public place is because area is big, flow of the people is big, in case the breaking out of fire consequence is difficult to expectation, in order to gain time for escape, reduce because the generation of the casualty accident that flue gas causes, the equal equipment of existing building various Smoke prevention devices (seeing the regulation of relevant building ' s fire standard for details).Simultaneously, for the large space building of construction area at 500 square metres, for timely evacuation crowd when fire takes place, national Specification must be set up fire compartment, the fire generating region is separated, prevent the flue gas body that produces when fire takes place from the fire generating region to external diffusion, for escape tries to gain time precious to one.Existing smoke bay mainly is to adopt the mode of smoke-proof pendant wall to be realized, when fire takes place, smoke-proof pendant wall is put down certain height, the characteristics that handy flue gas upwards flows, fire smoke temporarily is blocked in the space of being made up of smoke-proof pendant wall on retaining cigarette subregion top, prevents that flue gas from spreading to non-fire generating region.But, generally be no more than 1 meter, therefore because the height that smoke-proof pendant wall puts down is very limited, can stretch to adjacent area rapidly after flue gas gathers fast, thereby the retaining cigarette time is very short, also very short to the time of survivor's escape, be easy to cause the confusion when withdrawing, make casualty accident unavoidable.Therefore, smoke-proof pendant wall can not fundamentally solve the resistance cigarette problem of large space public place, be difficult to win enough escape time for the survivor, still do not have at present and better can play the effect of resistance cigarette, can in time withdraw the corresponding measure and the equipment that win the quality time for the personnel in the retaining cigarette subregion again and come out.
Summary of the invention
The objective of the invention is to utilize air curtain can effectively stop the feature of flue gas, carry the characteristics of blower fan in conjunction with building, for Smoke prevention and set up smoke bay a kind of effective additionaling power fire smoke-preventing air curtain system is provided, fire smoke is blocked in the fire generating region, withdraws for the personal security in the fire generating region and win the quality time.
Technical scheme of the present invention is:
A kind of additionaling power fire smoke-preventing air curtain system, it is characterized in that comprising blower fan, air channel, air-valve, fluidic device, blower fan is installed in the porch, air channel in the building, fluidic device or be installed in elevator or stair cup door top, or be installed in the fire escape top, or be installed in the interior building furred ceiling of smoke bay or on the crossbeam; Fluidic device comprises static pressure guide tank and deflector, static pressure guide tank and deflector are installed in the jet case, jet orifice is positioned at the bottom of jet case and communicates with the outlet of static pressure guide tank, and the porch of static pressure guide tank is equipped with air-valve, and the entrance point of air-valve communicates with the air channel; Blower fan is blown in the air channel, the wind that sent through air-valve enter all press in the static pressure guide tank in the fluidic device after, the jet thickness of the flow angle through jet orifice becomes 25～35 ° and oblique cigarette district with the effluxvelocity of 15～20m/s, with vertical line in, 2.5～4.5cm under the guide effect of deflector from inferoanterior ejection in the cigarette district, produce air curtain, thereby play the effect of fire smoke that stop to non-fire generating region diffusion.
In order to obtain satisfied blocking effect, the air mass flow that flows out in the jet orifice at least should be more than or equal to 0.6 with the ratio of flue gas flow.
Beneficial effect of the present invention:
1, both had been used on elevator or the stair cup door as smoke-preventing air curtain and used, and also be used in more than 500 square metres the large space public place and set up smoke bay; Be used for substituting when having smoke-proof pendant wall now, its subregion is provided with flexible, and the retaining cigarette is effective, can win than the longer escape time of existing tangible smoke-proof pendant wall for the personnel escape.
2, simple in structure, easy for installation, invest little.
3, not only be suitable for newly-built and use, be particularly suitable for transformation, can effectively solve the fire Smoke prevention problem of area in the large-scale place more than 500 square metres to existing place.
4, get a clear view, help strengthening survivor's confidence.Cooperate the use of fire prevention curtain wall can guarantee can not to take place the generation of the serious fire incident of casualties.
5, applied range, can be used for market, supermarket, subway station, train Waiting Lounge, public place that automobile Waiting Lounge homalographic is bigger, also can be used for factory, workshop, large-scale office room and expensive instrument is installed and the small space of equipment, and the safe class occasion of having relatively high expectations uses, and also can be used for replacing in the skyscraper positive-pressure type Smoke prevention device.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the side-looking structural representation of fluidic device of the present invention.
Fig. 3 is the structural representation of the embodiment of the invention two.
The specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Embodiment one.
As shown in Figure 1, 2.
A kind of additionaling power fire smoke-preventing air curtain system comprises blower fan 1, air channel 2, air-valve 3, fluidic device 4, and blower fan 1 is installed in the porch in the air channel 2 in the building, and fluidic device 4 is installed around the construction wall in smoke bay 5; Fluidic device 4 comprises static pressure guide tank 6 and deflector 7, static pressure guide tank 6 and deflector 7 are installed in the jet case 8, jet orifice 9 is positioned at the bottom of jet case 8 and communicates with the outlet of static pressure guide tank 6, and the porch of static pressure guide tank 6 is equipped with air-valve 3, and the entrance point of air-valve 3 communicates with air channel 2; Blower fan 1 is blown in air channel 2, the wind that sent through air-valve 3 enter all press in the static pressure guide tank 6 in the fluidic device 4 after, the jet thickness of the flow angle through jet orifice 9 becomes 25～35 ° and oblique smoke bay 5 with the effluxvelocity of 15～20m/s, with vertical line in, 2.5～4.5cm under the guide effect of deflector 7 from inferoanterior ejection in smoke bay 5, produce air curtain, thereby play the effect of fire smoke that stop to non-fire generating region diffusion.
In order to obtain satisfied blocking effect, the air mass flow that flows out in the jet orifice 9 at least should be more than or equal to 0.6 with the ratio of flue gas flow.
During concrete enforcement, air-valve 3 is opened with closed and can be controlled automatically by the fire control centre in the building.
When fire takes place, after fire alarm system is found fire location, the start-up course of its Smoke prevention device is, if finding the blower motor of porch, air channel does not work, then start blower motor immediately, open the air-valve 3 of respective storey simultaneously, and close the air-valve of other respective storey, to guarantee being that the fire floor provides enough wind, and adjust turning to of deflector 7 automatically, make the jet orifice that formed by two deflectors 79 tiltedly aim at the fire generating region, additionaling power fire smoke-preventing air curtain of the present invention system promptly commences work without delay.Wind by blower fan 1 generation, enter opened air-valve 3 by wind logical 2, enter supercharging in the static pressure guide tank 6 in the fluidic device 4, all press after, thereby from jet orifice 9, penetrate the air curtain that forms a closure rapidly immediately, fire smoke is enclosed in the closed air curtain, prevent the flue gas diffusion, for the escape personnel wins enough escape time.
Embodiment two.
As shown in Figure 3.
A kind of additionaling power fire smoke-preventing air curtain system, comprise blower fan 1, air channel 2, air-valve 3, fluidic device 4, blower fan 1 is installed in the porch in the air channel 2 in the building, in the top of fire escape 5 (also can be elevator or stair cup door) fluidic device 4 is installed; Fluidic device 4 comprises static pressure guide tank 6 and deflector 7, static pressure guide tank 6 and deflector 7 are installed in the jet case 8, jet orifice 9 is positioned at the bottom of jet case 8 and communicates with the outlet of static pressure guide tank 6, and the porch of static pressure guide tank 6 is equipped with air-valve 3, and the entrance point of air-valve 3 communicates with air channel 2; Blower fan 1 is blown in air channel 2, the wind that sent through air-valve 3 enter supercharging in the static pressure guide tank 6 in the fluidic device 4, all press after, the jet thickness of the flow angle through jet orifice 9 becomes 25～35 ° and oblique flue gas generating region 5 with the effluxvelocity of 15～20m/s, with vertical line in, 2.5～4.5cm under the guide effect of deflector 7 from inferoanterior ejection in flue gas generating region 5, produce air curtain, thereby play the effect of fire smoke that stop to non-fire generating region diffusion.
The other parts of present embodiment are identical with embodiment one.
Claims (2)
1. additionaling power fire smoke-preventing air curtain system, it is characterized in that comprising blower fan, air channel, air-valve, fluidic device, blower fan is installed in the porch, air channel in the building, fluidic device or be installed in elevator or stair cup door top, or be installed in the fire escape top, or be installed in the interior building furred ceiling of smoke bay or on the crossbeam; Fluidic device comprises static pressure guide tank and deflector, static pressure guide tank and deflector are installed in the jet case, jet orifice is positioned at the bottom of jet case and communicates with the outlet of static pressure guide tank, and the porch of static pressure guide tank is equipped with air-valve, and the entrance point of air-valve communicates with the air channel; Blower fan is blown in the air channel, the wind that sent through air-valve enter all press in the static pressure guide tank in the fluidic device after, the jet thickness of the flow angle through jet orifice becomes 25～35 ° and oblique cigarette district with the effluxvelocity of 15～20m/s, with vertical line in, 2.5～4.5cm under the guide effect of deflector from inferoanterior ejection in the cigarette district, produce air curtain, thereby play the effect of fire smoke that stop to non-fire generating region diffusion.
2. additionaling power fire smoke-preventing air curtain according to claim 1 system, it is characterized in that deflector forms by two, every deflector all is fixedly linked with turning cylinder, and turning cylinder is driven by drive unit, and the corner sum of the arbitrary moment two turning cylinders is 180 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100149756A CN100396347C (en) | 2004-05-21 | 2004-05-21 | Fire smoke-proof air curtain system with additional power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100149756A CN100396347C (en) | 2004-05-21 | 2004-05-21 | Fire smoke-proof air curtain system with additional power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1579580A CN1579580A (en) | 2005-02-16 |
| CN100396347C true CN100396347C (en) | 2008-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100149756A Expired - Fee Related CN100396347C (en) | 2004-05-21 | 2004-05-21 | Fire smoke-proof air curtain system with additional power |
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| Country | Link |
|---|---|
| CN (1) | CN100396347C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032637A (en) * | 2010-12-31 | 2011-04-27 | 南京工业大学 | Method and system for preventing and discharging smokes caused by high-rise building fire based on smoke-prevention buffer region |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2944861A1 (en) * | 2009-04-24 | 2010-10-29 | Ltb Sa | SMOKING SALON WITH AIR RENEWAL BY LAMINAR FLOW |
| CN102538119B (en) * | 2011-12-13 | 2013-10-23 | 西安建筑科技大学 | Safe evacuation system for airflow closed channel on side of building element |
| CN102538120B (en) * | 2011-12-13 | 2013-10-23 | 西安建筑科技大学 | Safe escape system of enclosed airflow channel at L-shaped building member edge |
| CN102538121B (en) * | 2011-12-13 | 2013-10-23 | 西安建筑科技大学 | Safe evacuation system for airflow closed channel in middle of L-shaped building element |
| CN102563796B (en) * | 2011-12-13 | 2013-12-04 | 西安建筑科技大学 | Safe escape system for closed airflow channel in middle of building member |
| CN102526909B (en) * | 2012-02-16 | 2013-12-18 | 中国人民解放军海军工程大学 | Long-channel air vortex plug smoke isolation system |
| CN103244165B (en) * | 2013-04-26 | 2015-05-20 | 西安建筑科技大学 | Collision-type respiratory zone air supply system |
| CN103223215B (en) * | 2013-04-28 | 2015-10-28 | 中山大学 | For air-supply fume-resisting system and its implementation of subway and market associated channel |
| CN105221180B (en) * | 2015-10-10 | 2020-06-05 | 上海市政工程设计研究总院（集团）有限公司 | Subway platform fire prevention separation method |
| CN107261347B (en) * | 2016-07-04 | 2019-12-17 | 中铁建设集团有限公司 | Super high-rise building fire rescue and fire extinguishing system |
| CN111214780A (en) * | 2020-03-05 | 2020-06-02 | 极度智慧展览(上海)有限公司 | Fireproof system of exhibition hall |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510091Y (en) * | 2001-12-30 | 2002-09-11 | 南京工业大学 | High-rise building fire fume-proof air curtain |
-
2004
- 2004-05-21 CN CNB2004100149756A patent/CN100396347C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510091Y (en) * | 2001-12-30 | 2002-09-11 | 南京工业大学 | High-rise building fire fume-proof air curtain |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032637A (en) * | 2010-12-31 | 2011-04-27 | 南京工业大学 | Method and system for preventing and discharging smokes caused by high-rise building fire based on smoke-prevention buffer region |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1579580A (en) | 2005-02-16 |
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Granted publication date: 20080625 |