CN203706566U - Device for high-rise building stairwell or shaft-well fire experiment simulation under the action of external wind - Google Patents
Device for high-rise building stairwell or shaft-well fire experiment simulation under the action of external wind Download PDFInfo
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- CN203706566U CN203706566U CN201420057338.6U CN201420057338U CN203706566U CN 203706566 U CN203706566 U CN 203706566U CN 201420057338 U CN201420057338 U CN 201420057338U CN 203706566 U CN203706566 U CN 203706566U
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Abstract
The utility model provides a device for high-rise building stairwell or shaft-well fire experiment simulation under the action of external wind. The device can be used for simulating the combustion of a high-rise building fire in a laboratory and researching smoke flow regularity and control systems of high-rise building stairwells and shaft-wells under the action of external wind. The device comprises an experiment table body, a movable air curtain system and a matching measurement and control system. In the aspect of the experimental measurement system, smoke flow parameters and smoke control effect can be observed and researched in an all-around way by using an advanced and complete temperature, velocity, pressure and radiation heat flux measuring system, a smoke composition analysis system, a flow field measuring system, an observation system and the like. In the aspect of experimental cost, the small-size experiment table costs less than a large-size experiment table, the repeatability is high, the operation is convenient, and the accuracy is high compared with a computer simulation method.
Description
Technical field
The utility model relates to fire safety evaluating technical field, is specifically related to skyscraper stairwell or vertical shaft fire test analogue means under a kind of extraneous wind effect.
Background technology
Along with increasing of economic development and the size of population, more and more skyscrapers stand erect among city, and corresponding fire safety evaluating problem has caused people's extensive concern.When high-rise building with fire disaster, high-temperature flue gas is entered into the vertical passageway such as stairwell or vertical shaft and is upwards spread to other floor of skyscraper by room, corridor, cup, has a strong impact on personnel's safe escape.For example, in November, 2010, the one teacher apartment high residential building breaking out of fire of Jing'an District, Shanghai, causes 58 people's death, and more than 70 people are injured.Many researchers show, personnel deaths most in fire failure are caused by high-temperature flue gas, therefore, the Regularity of Smoke Movement of the vertical passageway such as research skyscraper stairwell and vertical shaft and smoke control scheme and fire spread rule are very meaningful and be necessary for the overall fire safety evaluating that guarantees skyscraper.
For flow of flue gas and the control of stairwell and vertical shaft, Chinese scholars has been carried out Related Experimental Study.Tanaka utilizes the vertical shaft experiment table (square cross section, two kinds of length 0.8m and 0.4m) of high 3m to study flue gas forward's rise time and the relation of fire source power.Mercier utilizes the vertical shaft experiment table (square cross section, length 1m) of high 4m, by changing vertical shaft inlet air flow speed, research different Reynolds number and the impact of grashof number on smoke movement state in vertical shaft.Zhang Jingyan utilizes 1/8 size vertical shaft experiment table (high 2.4m), has studied the plume rise time under different fire source power.Marshall utilizes the 5 floor stair shaft experimental provisions (the high 3.3m of experiment table) of 1/5 size, has measured the flue-gas temperature in stairwell experiment table.Sun Xiaoqian utilizes the 12 floor stair shaft experimental provisions (the high 12.2m of experiment table) of 1/3 size, has studied smoke movement rule and control program in stairwell.These experimental provisions are all not consider to carry out related experiment under extraneous landscape condition above, but for actual skyscraper, generally all there is larger extraneous wind, extraneous wind has material impact to stairwell and the inner smoke movement of vertical shaft, just carry out at present CFD numerical simulation study both at home and abroad, do not carried out the deep experimental study of system.
Full-scale fire test need to be transferred a large amount of human and material resources and financial resources, and experiment condition is difficult to control in addition, affected greatly by various factors, repeatable poor, therefore, for carrying out lot of experiments, find out the rule wherein existing, full-scale experiment device is not a kind of well selection.
Summary of the invention
The purpose of this utility model is to provide skyscraper stairwell (vertical shaft) fire test analogue means under a kind of extraneous wind effect, can be at laboratory simulation fire of high-rise building combustion case, Regularity of Smoke Movement and control system while studying skyscraper stairwell and vertical shaft under extraneous wind effect
The technical solution adopted in the utility model is:
Skyscraper stairwell or vertical shaft fire test analogue means under a kind of extraneous wind effect, comprise experiment table main body, removable air curtain system and supporting TT&C system;
Described experiment table main body, is the BUILDINGS MODELS proportional with actual skyscraper physical size, comprises the building elements such as stairwell, vertical shaft, cup, room, corridor.Entirety adopts steel plate to build, and welded seal forms, and its external door and window adopts flat evolution formula, and does elevated-temperature seal processing, reaches sealing effectiveness while making it to close; Experiment table main body rack adopts angle steel to build; The front side of experiment table main body all adopts tempered glass exterior wall, and convenient building interior experimentation and the phenomenon of observing of described tempered glass, also does elevated-temperature seal processing between this tempered glass and described angle steel; In other sides of experiment table main body and stairwell, stair step is by fire resistant plate (liner) and steel plate composition; The building elements such as stairwell, vertical shaft, cup, room, corridor all have opening, can pass through square flange UNICOM.
Described removable air curtain system, comprises the compositions such as air curtain support, bracket bottom head sheave, blower fan, air channel, electric block wire rope, electric block pulley; Described air curtain support adopts angle steel to build, and described support bottom wheel, for horizontal direction moving air curtain system.Described air channel adopts steel plate to build, and welded seal forms; Described electric block wire rope and pulley are used for regulating blower fan and air channel height;
Described supporting TT&C system, comprises flame and smoke temperature measurement system, wind velocity measurement system, pressure-measuring system, fume component analysis system, flue gas flow field measuring system, gas radiation heat flow measurement system; Described flame and smoke temperature measurement system comprise stairwell and the inner thermocouple arrays of the middle a string vertical thermopair of vertical shaft and cup, room and corridor; Described wind velocity measurement system comprises and is arranged in stairwell and vertical shaft window place, left side and cup, room, the high temperature wind speed probe array at doorway, corridor place and the data processing equipment being connected with its electric signal; Described pressure-measuring system comprises and is arranged in the data processing equipment that stairwell is connected with the pressure probe of vertical shaft inside and with its electric signal; Described fume component analysis system comprises and is arranged in the smoke components measuring sonde of stairwell and vertical shaft inside and the data processing equipment being connected with its electric signal; Described flue gas flow field measuring system comprises the laser light sheet that is arranged in stairwell and silo bottom and experiment table right openings, in experiment table front, video camera is set, with the flow of flue gas situation on sheet light face in observation experiment platform.Described gas radiation heat flow measurement system comprises and is arranged in the data processing equipment that stairwell is connected with its electric signal with the radiation heatflowmeter on vertical shaft wall.
Wherein, described stairwell and vertical shaft can be connected in free combination by members such as square flange and cup, room, corridors, meet different experiments demand.
Wherein, described experiment table is built in the ratio of the 1:6 of actual building, is divided into 6 layers, on described stairwell, vertical shaft, cup, room, corridor side wall, has the opening that can freely close, also can be used for experimenter and arranges measurement mechanism and cleaning experiment platform.
Wherein, described stairwell, vertical shaft, cup, room, corridor wall all have by fire resistant plate (liner) and steel plate and form, and similar with reality building wall heat transfer situation, experimental result is more accurate.
Wherein, described removable air curtain system not only position can move freely, and blower fan and air channel height can free adjustment, the pillar of support plays fixing and supporting role, on pillar, there is U-shaped sulculus, air channel contacts by pulley with U-shaped sulculus, reduces the upper and lower friction force of blower fan, increases the stability of blower fan motion.On U-shaped sulculus, there is aperture, blower fan is risen to after the height needing, safety rod is inserted into the inside of the aperture on U-shaped sulculus under air curtain, in case wire cable rupture increases security.Air curtain height adjustable extent 0-3.8m.
Wherein, the wind speed size of described removable air curtain system regulates by changing blower fan frequency, wind speed range 0-8m/s.
Wherein, the inner PVC plastic tube that diameter is 1cm, the long 70cm of plastic conduit of placing in described removable air curtain system air channel, can be evenly arranged in inside, air channel by plastic conduit, form rectification section, air is flowed out from rectification section uniformly, thereby guarantee to provide stable extraneous wind speed.
Wherein, described burning things which may cause a fire disaster can be positioned at the bottom surface in stairwell, vertical shaft, cup, room and corridor.
Wherein, described burning things which may cause a fire disaster can adopt the multiple standards fuel such as normal heptane, methyl alcohol, grillage, liquefaction fire to simulate actual combustible.
Wherein, described burning things which may cause a fire disaster also can adopt methyl alcohol fire, the smoke particle spike simulated fire flue gas that utilizes cake to produce, cake and methyl alcohol food tray keep certain distance, when experiment, first light cake, then light methyl alcohol, when methyl alcohol burning, entrainment air, the flue gas that cake generation is ordered about in the buoyancy of generation flows in experiment table, comparatively clearly the spread situation of simulated fire flue gas in skyscraper and the process of discharging from stairwell and vertical shaft.
Advantage of the present utility model and good effect are:
(1) aspect security and environmental friendliness, adopt methyl alcohol oil sump fire as burning things which may cause a fire disaster, sufficient combustion is complete, and product is clean; Meanwhile, utilize cake produce smoke modelling fire smoke, environmental friendliness, pollution-free, to human body without pessimal stimulation;
(2) aspect simulation of smoke movement experiment effect, experiment table is according to Froude similarity theory, intactly simulate under extraneous wind effect flow of flue gas state in the building elements such as skyscraper stairwell, vertical shaft, cup, room, corridor, and tempered glass view window in platform front side clearly monitors fire and flue gas in experimentation and spreads phenomenon by experiment;
(3) aspect extraneous wind simulate effect, removable air curtain system position, height and wind speed can free adjustment, and air channel is inner places the PVC plastic tube that diameter is 1cm can provide stable extraneous wind speed;
(4) aspect experimental implementation, on stairwell, vertical shaft, cup, room, corridor side wall, there is closable opening, can be used for experimenter and arrange measurement mechanism and cleaning experiment platform; Stairwell and vertical shaft can be connected in free combination by members such as square flange and cup, room, corridors, meet different experiments demand, easy to use;
(5) aspect experimental measurement system, advanced complete temperature, speed, pressure and radiant heat flux measuring system, fume component analysis system, flow field survey system, recording geometrys etc. can be carried out omnibearing observation and research to flow of flue gas parameter and cigarette control effect;
(6) aspect experimental cost, this small-scale experiment platform is compared large-sized experiment table and is expended less, and repeatable strong, easy to operate, accuracy is high compared with computer simulation method simultaneously.
Accompanying drawing explanation
Fig. 1 is vertical shaft one-piece construction schematic diagram described in the utility model;
Fig. 2 is stairwell one-piece construction schematic diagram described in the utility model;
Fig. 3 is cup described in the utility model and room one-piece construction schematic diagram;
Fig. 4 is corridor described in the utility model one-piece construction schematic diagram;
Fig. 5 is stairwell and vertical shaft left side window, anemoscope probe and fume component analysis instrument probe position view (left view);
Fig. 6 is thermopair and the pressure probe position view (front view) in the middle of stairwell and vertical shaft;
Fig. 7 is stairwell and vertical shaft right side radiation heatflowmeter position view (right view);
Fig. 8 is cup and room thermocouple location schematic diagram (front view);
Fig. 9 is corridor thermocouple location schematic diagram (front view);
Figure 10 is removable air curtain system one-piece construction schematic diagram described in the utility model.
Number in the figure: 1-vertical shaft left side window; 2-vertical shaft left side wall (PLASTIC LAMINATED and steel plate); 3-vertical shaft laser light sheet; 4-vertical shaft rear wall (PLASTIC LAMINATED and steel plate); 5-vertical shaft right side wall (PLASTIC LAMINATED and steel plate); 6-vertical shaft front side wall (tempered glass); 7-vertical shaft right side square flange; 8-shaft bracket; 9-stairwell left side window; 10-stairwell left side wall (PLASTIC LAMINATED and steel plate); 11-stairwell laser light sheet; 12-stair rear wall (PLASTIC LAMINATED and steel plate); 13-stair right side wall (PLASTIC LAMINATED and steel plate); 14-stairwell front side wall (tempered glass); Every layer of landing of 15-stairwell; Every layer of inclination staristep of 16-stairwell; 17-stair right side square flange; 18-stairwell support; 19-cup left side square flange; 20-cup front side wall (tempered glass); 21-cup left side wall (PLASTIC LAMINATED and steel plate); 22-cup rear wall (PLASTIC LAMINATED and steel plate); The door opening in 23-UNICOM cup and room; 24-room rear wall (PLASTIC LAMINATED and steel plate); 25-room right side wall (PLASTIC LAMINATED and steel plate); Right side, 26-room and the outdoor door opening being connected; 27-room front side wall (tempered glass); 28-cup and room support; 29-cup and front, room video camera; Left side, 30-corridor square flange; 31-corridor front side wall (tempered glass); 32-corridor left side wall (PLASTIC LAMINATED and steel plate); 33-corridor rear wall (PLASTIC LAMINATED and steel plate); 34-corridor right side wall (PLASTIC LAMINATED and steel plate); Right side, 35-corridor and the outdoor door opening being connected; 36-corridor support; Front, 37-corridor video camera; 38-vertical shaft and stairwell fume component analysis instrument probe; 39-left side wall window front view; 40-vertical shaft and stairwell high temperature hot-wire anemometer probe; 41-vertical shaft and stairwell armoured thermocouple; 42-vertical shaft and stairwell pressure probe; 43-vertical shaft and stairwell radiation heatflowmeter; 44-right side square flange; 45-cup and room armoured thermocouple; 46-cup front view; 47-room front view; 48-corridor armoured thermocouple; 49-corridor front view; The removable air curtain system of 50-bottom wheel; 51-air channel inner blower; 52-rectangular parallelepiped air channel; The removable air curtain system integral support of 53-; 54-electric block wire rope; 55-electric block pulley; 56-diameter is 1cm PVC plastic tube.
Embodiment
Further illustrate the utility model below in conjunction with accompanying drawing and specific embodiment.
Referring to Fig. 1, vertical shaft height overall is 3.5m, and the wherein high 0.5m of shaft bracket 8 adopts angle steel to build; Vertical shaft cross sectional dimensions is 0.75m × 0.5m.In the middle of vertical shaft left side wall 2, have six windows 1 that are of a size of 0.4m × 0.3m, window 1 adopts flat evolution formula, can freely open and close, the thick tempered glass of interior edge 5mm.Left side wall 2 outside surfaces are the steel plate that 5mm is thick, and liner is the PLASTIC LAMINATED that 8mm is thick.Vertical shaft rear wall 4, vertical shaft right side wall 5 are the same with the structure of vertical shaft left side wall 2.Vertical shaft front side wall 6 is the tempered glass that 8mm is thick, and surrounding adopts elevated-temperature seal processing, and laser light sheet 3 is fixed on vertical shaft top, for observing flow of flue gas state in vertical shaft.Vertical shaft low side square flange 7 is of a size of 0.35m × 0.3m, can be connected with cup left side square flange 19 and left side, corridor square flange 30.
Referring to Fig. 2, stairwell height overall is 3.5m, and the wherein high 0.5m of stairwell support 18 adopts angle steel to build; Stairwell cross sectional dimensions is 0.75m × 0.5m.In the middle of stairwell left side wall 10, have six windows 9 that are of a size of 0.4m × 0.3m, window 9 adopts flat evolution formula, can freely open and close, the thick tempered glass of interior edge 5mm.Left side wall 10 outside surfaces are the steel plate that 5mm is thick, and liner is the PLASTIC LAMINATED that 8mm is thick.Stairwell rear wall 12, stairwell right side wall 13 are the same with the structure of stairwell left side wall 10.Stairwell front side wall 14 is the tempered glass that 8mm is thick, and surrounding adopts elevated-temperature seal processing, and laser light sheet 11 is fixed on stairwell top, for observing flow of flue gas state in stairwell.Every layer, stair are all installed two landings 15 and two inclination staristeps 16, and material is all made up of steel plate and PLASTIC LAMINATED.Landing 15 is of a size of 0.15m × 0.5m, and inclination staristep 16 is of a size of 0.23m × 0.51m, and angle of inclination is 50 °.Stairwell low side square flange 7 is of a size of 0.35m × 0.3m, can be connected with cup left side square flange 19 and left side, corridor square flange 30.
Referring to Fig. 3, cup and room length and width height are 0.5m × 0.5m × 0.5m.Cup left side 21, cup rear side 22, room rear side 24, right side, room 25, top, cup room and bottom are by the thick steel plate of 5mm and the thick PLASTIC LAMINATED composition of 8mm, cup front side 20 and front side, room 27 are the tempered glass that 8mm is thick, surrounding adopts elevated-temperature seal processing, for observing flow of flue gas state in cup and room.Cup left side flange 19 can be connected with stairwell flange 17 with vertical shaft flange 7; Cup is connected by being of a size of 0.35m × 0.3m door opening 23 with room.Right side, room is connected with outdoor by 0.35m × 0.3m door opening 26.Cup and the high 0.5m of room support 28, adopt angle steel to build.Video camera 29 is placed on before cup and room, records flame forms and flow of flue gas state.
Referring to Fig. 4, length and width height in corridor is 2m × 0.5m × 0.5m.Left side, corridor 21, corridor rear side 22, right side, corridor 25, top, corridor and bottom are by the thick steel plate of 5mm and the thick PLASTIC LAMINATED composition of 8mm; Front side, corridor 31 is the tempered glass that 8mm is thick, and surrounding adopts elevated-temperature seal processing, for observing flow of flue gas state in corridor.Left side, corridor flange 30 can be connected with stairwell flange 17 with vertical shaft flange 7; Right side, corridor is connected with outdoor by 0.35m × 0.3m door opening 35.The high 0.5m of corridor support 36, adopts angle steel to build.Video camera 37 is placed on before corridor, records flame forms and flow of flue gas state.
Referring to Fig. 5, vertical shaft and a window 39 of every layer of middle installation of stairwell left side wall, window 39 is of a size of 0.4m × 0.3m, and fume component analysis instrument probe 38 and anemoscope probe 40 are arranged in the middle of the wall of left side, respectively arrange one for every layer, for measuring wind speed and the smoke components at window 39 places.Fume component analysis instrument probe 38 and anemoscope are popped one's head in 40 horizontal intervals apart from being 0.02m, and vertical spacing distance is 0.5m.
Referring to Fig. 6, a string armoured thermocouple 41(29 of vertical shaft and stairwell intermediate arrangement) and a string pressure probe 42(29), distribute for Temperature Distribution and the pressure of measuring vertical shaft and stairwell inside.Armoured thermocouple 41 and pressure probe 42 horizontal interval distances are 0.02m, and vertical spacing distance is 0.1m.
Referring to Fig. 7, on vertical shaft and stairwell right side wall, arrange a string radiation heatflowmeter 43, totally 11, for measuring the radiant heat flux of vertical shaft and stairwell internal heat flue gas, the vertical spacing distance of radiation heatflowmeter 43 is 0.25m.Vertical shaft and stairwell right side wall upper flange 44 are of a size of 0.35m × 0.3m, are connected with cup left side square flange 19 and left side, corridor square flange 30.
Referring to Fig. 8, a thermocouple arrays 45 is arranged in cup 46 and room 47, and totally 60 thermopairs 45 distribute for flame and the flue-gas temperature measured in cup and room.
Referring to Fig. 9, a thermocouple arrays 48 is arranged in corridor 49, and totally 105 thermopairs 48 distribute for flame and the flue-gas temperature measured in corridor.
Referring to Figure 10, moving air curtain system comprises air curtain support 53, support bottom wheel 50, blower fan 51, air channel 52, electric block wire rope 54, electric block pulley 55 etc., air curtain support 53 height are 3.8m, employing angle steel is built, the horizontal and vertical distance of support is respectively 1m and 2m, there is wheel 50 support 53 belows, for horizontal direction moving air curtain system.Air channel 52 length and width height are 1.5m × 0.8m × 0.8m, adopt steel plate to build, and welded seal form, and wherein blower fan 51 is fixed on air channel 52 left ends, and blower fan 51 frequencies can regulate, and different wind speed are provided, and wind speed range is 0-8m/s; It is 1cmPVC plastic tube 56 that air channel 52 left ends are placed many diameters, guarantees to provide stable extraneous wind speed.Air channel 52 can vertical adjustment height by cucurbit wire rope 54 and electric block pulley 55.
The part that the utility model does not elaborate belongs to techniques well known.
Although above the illustrative embodiment of the utility model is described; so that those skilled in the art understand the utility model; but should be clear; the utility model is not limited to the scope of embodiment; to those skilled in the art; as long as various variations appended claim limit and the spirit and scope of the present utility model determined in; these variations are apparent, and all innovation and creation that utilize the utility model design are all at the row of protection.
Claims (10)
1. skyscraper stairwell or a vertical shaft fire test analogue means under extraneous wind effect, is characterized in that, comprises experiment table main body, removable air curtain system and supporting TT&C system;
Described experiment table main body, the BUILDINGS MODELS proportional with actual skyscraper physical size, comprise stairwell, vertical shaft, cup, room, corridor building element, entirety adopts steel plate to build, and welded seal forms, its external door and window adopts flat evolution formula, and does elevated-temperature seal processing, reaches sealing effectiveness while making it to close; Experiment table main body rack adopts angle steel to build; The front side of experiment table main body all adopts tempered glass exterior wall, and convenient building interior experimentation and the phenomenon of observing of described tempered glass, also does elevated-temperature seal processing between this tempered glass and described angle steel; In other sides of experiment table main body and stairwell, stair step is by fire resistant plate and steel plate composition; Stairwell, vertical shaft, cup, room, corridor building element all have opening, can pass through square flange UNICOM;
Described removable air curtain system, comprises air curtain support, bracket bottom head sheave, blower fan, air channel, electric block wire rope, electric block pulley composition; Described air curtain support adopts angle steel to build, described support bottom wheel, and for horizontal direction moving air curtain system, described air channel adopts steel plate to build, and welded seal forms; Described electric block wire rope and pulley are used for regulating blower fan and air channel height;
Described supporting TT&C system, comprises flame and smoke temperature measurement system, wind velocity measurement system, pressure-measuring system, fume component analysis system, flue gas flow field measuring system, gas radiation heat flow measurement system; Described flame and smoke temperature measurement system comprise stairwell and the inner thermocouple arrays of the middle a string vertical thermopair of vertical shaft and cup, room and corridor; Described wind velocity measurement system comprises and is arranged in stairwell and vertical shaft window place, left side and cup, room, the high temperature wind speed probe array at doorway, corridor place and the data processing equipment being connected with its electric signal; Described pressure-measuring system comprises and is arranged in the data processing equipment that stairwell is connected with the pressure probe of vertical shaft inside and with its electric signal; Described fume component analysis system comprises and is arranged in the smoke components measuring sonde of stairwell and vertical shaft inside and the data processing equipment being connected with its electric signal; Described flue gas flow field measuring system comprises the laser light sheet that is arranged in stairwell and silo bottom and experiment table right openings, in experiment table front, video camera is set, with the flow of flue gas situation on sheet light face in observation experiment platform, described gas radiation heat flow measurement system comprises and is arranged in the data processing equipment that stairwell is connected with its electric signal with the radiation heatflowmeter on vertical shaft wall.
2. skyscraper stairwell or vertical shaft fire test analogue means under the extraneous wind effect of one according to claim 1, it is characterized in that, described stairwell and vertical shaft can be connected in free combination by square flange and cup, room, corridor member, meet different experiments demand.
3. skyscraper stairwell or vertical shaft fire test analogue means under the extraneous wind effect of one according to claim 1, it is characterized in that, described experiment table is built in the ratio of the 1:6 of actual building, be divided into 6 layers, on described stairwell, vertical shaft, cup, room, corridor side wall, there is the opening that can freely close, also can be used for experimenter and arrange measurement mechanism and cleaning experiment platform.
4. skyscraper stairwell or vertical shaft fire test analogue means under the extraneous wind effect of one according to claim 1, it is characterized in that, described stairwell, vertical shaft, cup, room, corridor wall are all by being made up of fire resistant plate and steel plate, similar with reality building wall heat transfer situation, experimental result is more accurate.
5. skyscraper stairwell or vertical shaft fire test analogue means under the extraneous wind effect of one according to claim 1, it is characterized in that, described removable air curtain system not only position can move freely, and blower fan and air channel height can free adjustment, the pillar of support plays fixing and supporting role, on pillar, there is U-shaped sulculus, air channel contacts by pulley with U-shaped sulculus, reduce the upper and lower friction force of blower fan, increase the stability of blower fan motion, on U-shaped sulculus, there is aperture, blower fan is risen to after the height needing, safety rod is inserted into the inside of the aperture on U-shaped sulculus under air curtain, in case wire cable rupture, increase security, air curtain height adjustable extent 0-3.8m.
6. skyscraper stairwell or vertical shaft fire test analogue means under the extraneous wind effect of one according to claim 1, is characterized in that, the wind speed size of described removable air curtain system regulates by changing blower fan frequency, wind speed range 0-8m/s.
7. skyscraper stairwell or vertical shaft fire test analogue means under the extraneous wind effect of one according to claim 1, it is characterized in that, the PVC plastic tube that described removable air curtain system air channel inner placement diameter is 1cm, the long 70cm of plastic conduit, can be evenly arranged in inside, air channel by plastic conduit, form rectification section, air is flowed out from rectification section uniformly, thereby guarantee to provide stable extraneous wind speed.
8. skyscraper stairwell or vertical shaft fire test analogue means under the extraneous wind effect of one according to claim 1, is characterized in that, described burning things which may cause a fire disaster can be positioned at the bottom surface in stairwell, vertical shaft, cup, room and corridor.
9. skyscraper stairwell or vertical shaft fire test analogue means under the extraneous wind effect of one according to claim 1, is characterized in that, described burning things which may cause a fire disaster can adopt normal heptane, methyl alcohol, grillage, liquefaction fire multiple standards fuel to simulate actual combustible.
10. skyscraper stairwell or vertical shaft fire test analogue means under the extraneous wind effect of one according to claim 1, it is characterized in that, described burning things which may cause a fire disaster also can adopt methyl alcohol fire, the smoke particle spike simulated fire flue gas that utilizes cake to produce, cake and methyl alcohol food tray keep certain distance, when experiment, first light cake, then light methyl alcohol, when methyl alcohol burning, entrainment air, the flue gas that cake generation is ordered about in the buoyancy producing flows in experiment table, comparatively clearly the spread situation of simulated fire flue gas in skyscraper and the process of discharging from stairwell and vertical shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420057338.6U CN203706566U (en) | 2014-01-29 | 2014-01-29 | Device for high-rise building stairwell or shaft-well fire experiment simulation under the action of external wind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420057338.6U CN203706566U (en) | 2014-01-29 | 2014-01-29 | Device for high-rise building stairwell or shaft-well fire experiment simulation under the action of external wind |
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| Publication Number | Publication Date |
|---|---|
| CN203706566U true CN203706566U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420057338.6U Withdrawn - After Issue CN203706566U (en) | 2014-01-29 | 2014-01-29 | Device for high-rise building stairwell or shaft-well fire experiment simulation under the action of external wind |
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| CN (1) | CN203706566U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103761918A (en) * | 2014-01-29 | 2014-04-30 | 中国科学技术大学 | High-rise building stairwell or vertical shaft fire experimental simulation device under action of external wind |
| CN106526069A (en) * | 2016-12-22 | 2017-03-22 | 公安部四川消防研究所 | Environment wind field simulation unit and environment wind field simulation system applied to fireproof performance test of building exterior wall |
| CN113624907A (en) * | 2021-08-10 | 2021-11-09 | 中国科学技术大学 | Ignition experiment simulation device |
-
2014
- 2014-01-29 CN CN201420057338.6U patent/CN203706566U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103761918A (en) * | 2014-01-29 | 2014-04-30 | 中国科学技术大学 | High-rise building stairwell or vertical shaft fire experimental simulation device under action of external wind |
| CN103761918B (en) * | 2014-01-29 | 2016-07-06 | 中国科学技术大学 | Skyscraper stairwell or vertical shaft fire test analog under a kind of external wind effect |
| CN106526069A (en) * | 2016-12-22 | 2017-03-22 | 公安部四川消防研究所 | Environment wind field simulation unit and environment wind field simulation system applied to fireproof performance test of building exterior wall |
| CN106526069B (en) * | 2016-12-22 | 2018-12-04 | 公安部四川消防研究所 | Surroundings wind field simulation system applied to external wall fire-protecting test |
| CN113624907A (en) * | 2021-08-10 | 2021-11-09 | 中国科学技术大学 | Ignition experiment simulation device |
| CN113624907B (en) * | 2021-08-10 | 2022-05-13 | 中国科学技术大学 | Ignition experiment simulation device |
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