CN206259108U - A kind of lower skyscraper solid fire behavior analogue experiment installation of ambient wind effect - Google Patents
A kind of lower skyscraper solid fire behavior analogue experiment installation of ambient wind effect Download PDFInfo
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- CN206259108U CN206259108U CN201621101762.1U CN201621101762U CN206259108U CN 206259108 U CN206259108 U CN 206259108U CN 201621101762 U CN201621101762 U CN 201621101762U CN 206259108 U CN206259108 U CN 206259108U
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Abstract
The utility model discloses a kind of lower skyscraper solid fire behavior analogue experiment installation of ambient wind effect.The device includes model of high-rise building, rotation platform, direction-adjustable wind-tunnel, three-dimensional packaged type thermocouple frame, burning things which may cause a fire disaster analogue means.The model of high-rise building is cube shelly, is divided into four chambers, and wherein igniting experiments chamber is provided with burning things which may cause a fire disaster analogue means and adjustable-size building window model；The connection rotation platform cooperation adjustable wind-tunnel of outside direction in model of high-rise building bottom can simulate the ambient wind of any direction and wind speed；Three-dimensional packaged type thermocouple frame is combined type rectangular structure, is capable of achieving the parameter measurement function of outside wall surface optional position.The utility model establishes the lower skyscraper solid fire spread analogue experiment installation of a set of research environment wind effect first, wind direction regulating system is safely, conveniently, accurately, experimental provision has complete parameter measurement system, can study skyscraper and spill into the final complete procedure for spreading to build upper strata, adjacent side from fire, flame.
Description
Technical field
The utility model belongs to technical field of fire hazard safety, and in particular to a kind of lower three-dimensional fire of skyscraper of ambient wind effect
Behavior modeling experimental provision, it is the presence of the skyscraper solid fire behavior and flame characteristic parameter under the effect of complex environment wind
The experiment of development law and research equipment.
Background technology
As China city continues to develop, nervous to alleviate land used, increasing skyscraper gradually rises, highly gets over
Come higher, structure becomes increasingly complex, function is more and more diversified, the thing followed is prominent fire of high-rise building problem, and
Become worse.There are many heavy construction event of fire in recent years, be respectively formed climing to outside wall surface fire by chamber fire
Prolong again to " three-dimensional fire spread " behavior being ignited inside superstructure, it is bigger than traditional outside wall surface fire spread harm, cause
Mass casualties and property loss, the thinking for causing society extensive and deep.
The Jing'an of Shanghai in 2010 Jiangzhou road teacher's apartment and flats cause combustibles around because electric welder is without card violation operation
Ignited by welding slag, cause scaffold burst big fire.The final people of wrecked number 58, injured more than 70 people.The Chinese Central Television (CCTV) in 2009
(CCTV) big fire occurs in new address BeiPeiLou building site, and the intensity of a fire has 80 meters to 100 meters high, and fire causes 1 people dead altogether and 7 people are injured.
Similar case also has the house of 13 building, 012 Guangzhou Liwan District recovery road recovery mansion that fire occurs, and fire occurs in restricted clearance
After calamity, flame is overflowed by window to the window of facade, and very big destruction is caused to superstructure.
In addition, fire is usually associated with extraneous wind action, skyscraper will with the increase wind speed of vertical height
Constantly increase, wind speed is about 3-8m/s on Hong Kong city, height above sea level 32m height, and maximum wind velocity can exceed 40m/s.When wind speed model
Enclose during for 5-20m/s, the blast that wind speed acts on building is up to 15-240Pa, and the pressure difference that general flame is produced is only 5Pa.
Certainly, external environment condition wind will be to fire dynamics, fire and smoke spread and the thermodynamic behavior generation for overflowing flame significantly
Influence, the research for causing fire development feature to be different under traditional calm condition.
Under strong external environment wind effect, can aggravate to overflow the process of flame " in entering outward ", promote skyscraper
The development of three-dimensional fire spread behavior, so as to trigger serious fire spread accident.Simultaneously as the wind direction of ambient wind is complicated more
Become, easily produce lateral wind that flame is blowed into adjacent bed and cause even more serious spreading.It is domestic at present three-dimensional for skyscraper fiery
Spread (overflow flame interior by entering outward) behavioral study less, the three-dimensional fire spread behavior under being acted in particular for complex environment wind
Research be nearly at blank, scientific research personnel's understanding related to this shortage, engineering staff and scene of fire are puted out a fire to save life and property and emergent tune
Degree is badly in need of corresponding forecast model as aid decision support.Therefore, research skyscraper solid fire spread behavior, especially in ring
Wind effect lower its three-dimensional fire spread behavior in border has very important significance.
Utility model content
In order to study complex environment wind to fire of high-rise building solid fire spread behavior and the influence of flame characteristic parameter, this
Utility model provides a set of fire simulation experimental apparatus that lower skyscraper solid fire spread behavior can be acted on research environment wind.
The technical solution adopted in the utility model is as follows：
A kind of lower skyscraper solid fire behavior analogue experiment installation of ambient wind effect, including model of high-rise building, burning things which may cause a fire disaster
Analogue means, rotation platform, three-dimensional packaged type thermocouple frame and direction-adjustable wind-tunnel, wherein：
The model of high-rise building is cube shelly, and outer layer is steel construction, embedded ceramic fiberboard as heat-barrier material,
Model of high-rise building is provided with four chambers altogether, and lower-left chamber is igniting experiments chamber, and its excess-three chamber is fire spread laboratory,
All chambers are equipped with opening simulant building window, and igniting experiments chamber opening is double-decker, and outer layer is prevented to move up and down formula
Fiery roller shutter, internal layer is the plug-type PLASTIC LAMINATED in left and right；Fire spread laboratory opening is provided with groove and equipped with common building glass；
Model of high-rise building side is provided with high temp glass observation window, and the igniting experiments chamber back side is provided with temperature survey hole, fire spread experiment
The chamber back side is provided with heat-flow measurement hole；
The burning things which may cause a fire disaster analogue means is three-decker, and top cube formula framework is double-deck dislocation hole diffusion layer, lower taper
Filling fine sand stone and woven wire in framework, burning things which may cause a fire disaster analogue means is arranged on combustion chamber bottom center of lower floor position, with special
Tracheae is connected to gas cylinder, and is provided with flow and Pneumatic controller；
The rotation platform is discoid, is erected on circular ground rail, its top connection model of high-rise building, circular
Ground rail is spline-simulating, and rotation platform bottom is provided with the gear being engaged with, and gear is driven by power transmission shaft and is capable of achieving around platform
The arbitrarily angled rotation at center, rotation platform is provided with angle dial to accurate adjustment and wind direction angle；
The three-dimensional packaged type thermocouple frame is combined long quadra, and its middle transverse rod is round outside but spuare inside shaped steel
Pipe, two ends connection screw fastener is fixed on two heel posts, and vertical position of the screw fastener on column can be adjusted arbitrarily,
Middle transverse rod is provided with transversely movable ceramic pipe holder, and ceramic pipe holder is telescopic mounting, and length range is 0.6-
1.5m, thermocouple may be arranged at the outer optional position in opening and quantity is adjustable, and two heel posts are equipped with graduated scale use with middle transverse rod
With accurate adjustment thermocouple location；
The direction-adjustable wind-tunnel is cuboid passage, and its section is square, including power section, rectification section, contraction
Section and experimental section, power are provided by the centrifugal speed-changing draught fans of 30kW, and adjust FREQUENCY CONTROL wind speed by frequency converter, and experimental section sets
There are wind direction regulating device and velocity-measuring system, wind direction regulating device is made up of a series of adjustable plates for unifying to rotate upwardly and downwardly.
The utility model advantage compared with prior art is：
The utility model establishes a set of research complex environment wind to skyscraper solid fire spread behavior and flame first
Characteristic parameter analogue experiment installation, wind direction, wind speed regulating system safe and convenient, numerical value are accurate, and experimental provision includes indoor and outdoor temperature
The characteristic parameter such as degree, heat-flow meter measuring system, inside fire Phenomena Observation system.Advantageous Effects of the present utility model embody
In the following aspects：
(1) skyscraper solid fire spread simulation aspect, model of high-rise building igniting experiments chamber opening is double-decker,
Width and height dimensions are easy to adjust, can study influencing mechanism of the open-mouth ruler degree to three-dimensional fire spread, and model of high-rise building side is provided with
High temp glass, can conveniently observe igniting, for the growth of lower floor's igniting experiments layer fire, flame spilling and upper strata fire spread experiment layer
The fiery three-dimensional fire spread complete procedure of contour level building；
(2) in terms of ambient wind simulation, the ambient wind of steady and continuous can be provided using the centrifugal adjustable engines of 30kW, its
Fluctuations in wind speed is less than 2%, and experimental section is provided with wind direction regulating device, coordinates rotation platform, can be with any side under simulating actual conditions
To the complex environment wind of, wind speed (0-15m/s), can truly the lower building fire of simulation complex environment wind effect (inside fire,
Outside wall surface spreads, upper strata or adjacent bed are on fire) complete procedure of development, can be used for research environment wind fire three-dimensional to skyscraper
The influencing mechanism of behavior；
(3) in terms of burning things which may cause a fire disaster simulation, it is made up of bilayer dislocation porous diffusion layer connection taper reducing pipe, in taper reducing pipe
Woven wire and fine sand stone are filled by portion, can fully reduce gas flow rate and gas is evenly distributed on burner and put down
On face, it is achieved thereby that truly simulant building inside phenomenon on fire, its underpart is connected to fuel gas bottle, connects on tracheae by tracheae
Pressure gauge and volume control device are connected to, the demand of convenient regulation and safety experiment is met；
(4) in terms of flame characteristic parameter measurement, three-dimensional packaged type thermocouple frame causes thermocouple in three directions
Any mobile and its quantity can arbitrarily be set, and can measure the three-dimensional temperature for overflowing flame in vertical, radial direction and opening both sides direction
Degree field, model of high-rise building is provided with multifunctional measuring hole, measurable indoor temperature, pressure distribution；Model of high-rise building upper strata
Opening surface is provided with Wall Radiation and heat-flow measurement device, and measurement apparatus position can arbitrarily be arranged, is easy to research to overflow flame to upper
The influencing mechanism of the three-dimensional fire spread of layer building.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is model of high-rise building structural representation；
Fig. 3 is simulant building hatch frame schematic diagram；
Fig. 4 is rotating platform structure schematic diagram, wherein, Fig. 4 (a) is overall schematic, and Fig. 4 (b) is partial enlarged drawing；
Fig. 5 is burning things which may cause a fire disaster analogue means structural representation, wherein, Fig. 5 (a) is stereoscopic model, and Fig. 5 (b) illustrates for layering
Figure；
Fig. 6 is three-dimensional packaged type thermocouple frame structural representation, wherein, Fig. 6 (a) is overall schematic, and Fig. 6 (b) is
Partial enlarged drawing.
Reference implication is in figure：1 is model of high-rise building, and 2 is rotation platform, and 3 is three-dimensional packaged type thermocouple
Frame, 4 is direction-adjustable wind-tunnel, and 5 is centrifugal fan, and 7 is wind direction regulating device, and 8 is igniting experiments chamber, and 9 is fire spread
Laboratory, 10 is windowpane, and 11 is fire resisting shutter, and 12 is PLASTIC LAMINATED, and 13 is groove, and 14 is building glass, and 15 is burning things which may cause a fire disaster mould
Intend device, 16 is temperature and pressure measxurement hole, and 17 is heat-flow measurement device, and 18 is circular ground rail, and 19 is gear, and 20 are
Power transmission shaft, 21 is angle dial, and 22 is double-deck dislocation hole diffusion layer, and 23 is conical diffuser, and 24 is woven wire, and 25 is thin
Sandstone, 26 is round outside but spuare inside cross bar, and 27 is column, and 28 is graduated scale, and 29 is screw fastener, and 30 is ceramic pipe holder.
Specific embodiment
Below in conjunction with the accompanying drawings, by embodiment, the utility model is further described.
Referring to Fig. 1, skyscraper solid fire spread analogue experiment installation includes model of high-rise building 1, rotation platform 2, three
Dimension packaged type thermocouple frame 3, direction-adjustable wind-tunnel 4.Direction-adjustable wind-tunnel 4 include power section, rectification section, telescopic section and
Experimental section, power section is provided with 30kW centrifugal fans 5, and blower fan can control power output by regulating frequency, and rectification section is provided with many
Layer screens 6, experimental section is provided with the wind direction regulating device 7 that can unify to adjust direction.
Referring to Fig. 2, model of high-rise building 1 is double-deck cube formula frame-like, and shell is formed by connecting by steel surface, embedded ceramic
Fiberboard is heat-barrier material, is divided into igniting experiments chamber 8 and fire spread laboratory 9, and upper and lower two-layer is provided with height in two sides
Warm windowpane 10.Igniting experiments chamber simulant building opening is double-decker, and outer layer is provided with upper and lower Bidirectional mobile fire resisting shutter
11, internal layer be provided with left and right it is two-way can plug-type PLASTIC LAMINATED 12, opening width and height dimensions can be controlled by adjusting spacing, be open chi high wide
Very little adjustable range is 0-0.25m.Fire spread laboratory is provided with groove 13 at opening, can install common building glass 14.
Referring to Fig. 3, igniting experiments cavity bottom center is provided with burning things which may cause a fire disaster analogue means 15, and the back side is provided with temperature and pressure
Measurement hole 16, the fire spread laboratory back side is provided with heat-flow measurement device 17.
Referring to Fig. 4, rotation platform is erected on circular ground rail 18, and its bottom is provided with gear 19 and engages, gear by
Power transmission shaft 20 drives may be implemented in and rotated on circular ground rail, and angle of regulation range is 0-180 °, and rotation platform is provided with angle
Degree dial 21.
Referring to Fig. 5, burning things which may cause a fire disaster analogue means is gas burner, and three layers of diffusion current stabilization layer, upper cubic framework are provided with altogether
It is bilayer dislocation hole diffusion layer 22, bottom is conical diffuser 23, its internal filling woven wire 24 and fine sand stone 25, it is possible to decrease
Air velocity, and gaseous fuel is evenly distributed on burner surface.
Referring to Fig. 6, three-dimensional packaged type thermocouple frame is made up of some round outside but spuare inside cross bars 26 with two heel posts 27, column
Be equipped with graduated scale 28 on cross bar, cross bar is fixed on two heel posts by screw fastener 29, cross bar be provided with it is removable, can stretch
The ceramic pipe holder 30 of contracting.
Experiment 1, when as research complex environment wind to skyscraper solid fire spread and flame characteristic parameter influence machine
When processed, first, indoor and outdoor temperature measuring system is arranged, and ensure that three-dimensional packaged type thermocouple frame and Multi-functional indoor are surveyed
Metering-orifice works well.Burning things which may cause a fire disaster analogue means is connected into gas cylinder as experiment fire by tracheae and pressure and volume control device
Source.Determine A/F, height by adjusting igniting laboratory ectonexine opening spacing.Wood is placed in fire spread laboratory
Stamp as combustible.Blower fan is opened, is progressively adjusted to test frequency, and wind direction is determined by wind direction regulating device.Preparatory work of experiment
It is ready, Kindling paper is lighted and is put into combustion chamber by opening, gas cylinder, flowmeter control valve are opened rapidly is lighted a fire.Igniting
While start gather relevant experimental data, by adjust flow control fire source power, it can be observed that inside fire increase and
The phenomenon of final solid fire spread, regulation blower fan frequency, Wind Control device coordinate the different wind directions of research, wind by rotation platform
The lower fire of high-rise building solid fire spread phenomenon of ambient wind effect of speed.(opening size, ambient wind wind direction, wind under different operating modes
Speed) experiment need wait BUILDINGS MODELS cooling after, repeat preparation process.
Experiment 2, when influencing mechanism is ruptured to external wall glass as research environment wind, tests chamber in fire spread first
Common building glass is installed at room simulation open recess, while radiation and heat-flow device are arranged in into three-dimensional packaged type thermoelectricity
On even frame, it is used to measure Wall Radiation and heat flow data.Install the empirically regulation of method described in 1 igniting experiments layer opening
Size, gas flow, ambient wind wind direction, wind speed, igniting experiments by experimental arrangement is ready start simultaneously at collection related experiment number
According to.After the experiment of (opening size, ambient wind wind direction, wind speed) needs to wait BUILDINGS MODELS to cool down under different operating modes, repeat accurate
Standby step.
Claims (1)
1. a kind of ambient wind acts on lower skyscraper solid fire spread analogue experiment installation, it is characterised in that：Including skyscraper
Model, burning things which may cause a fire disaster analogue means, rotation platform, three-dimensional packaged type thermocouple frame and direction-adjustable wind-tunnel, wherein：
The model of high-rise building is cube shelly, and outer layer is steel construction, and embedded ceramic fiberboard is high-rise as heat-barrier material
BUILDINGS MODELS is provided with four chambers altogether, and lower-left chamber is igniting experiments chamber, and its excess-three chamber is fire spread laboratory, is owned
Chamber is equipped with opening simulant building window, and igniting experiments chamber opening is double-decker, and outer layer is to move up and down formula fireproof rolling
Curtain, internal layer is the plug-type PLASTIC LAMINATED in left and right；Fire spread laboratory opening is provided with groove and equipped with common building glass；It is high-rise
BUILDINGS MODELS side is provided with high temp glass observation window, and the igniting experiments chamber back side is provided with temperature survey hole, fire spread laboratory
The back side is provided with heat-flow measurement hole；
The burning things which may cause a fire disaster analogue means is three-decker, and top cube formula framework is double-deck dislocation hole diffusion layer, lower taper framework
Interior filling fine sand stone and woven wire, burning things which may cause a fire disaster analogue means are arranged on combustion chamber bottom center of lower floor position, use special tracheae
Gas cylinder is connected to, and is provided with flow and Pneumatic controller；
The rotation platform is discoid, is erected on circular ground rail, its top connection model of high-rise building, circular ground
Track is spline-simulating, and rotation platform bottom is provided with the gear being engaged with, and gear is driven by power transmission shaft and is capable of achieving around Platform center
Arbitrarily angled rotation, rotation platform is provided with angle dial to accurate adjustment and wind direction angle；
The three-dimensional packaged type thermocouple frame is combined long quadra, and its middle transverse rod is round outside but spuare inside shape steel tube, two
End connection screw fastener is fixed on two heel posts, and vertical position of the screw fastener on column can be adjusted arbitrarily, middle
Cross bar is provided with transversely movable ceramic pipe holder, and ceramic pipe holder is telescopic mounting, and length range is 0.6-1.5m, heat
Galvanic couple may be arranged at the outer optional position in opening and quantity is adjustable, and two heel posts are equipped with graduated scale to accurate tune with middle transverse rod
Section thermocouple location；
The direction-adjustable wind-tunnel be cuboid passage, its section for square, including power section, rectification section, contraction section and
Experimental section, power is provided by the centrifugal speed-changing draught fans of 30kW, and adjusts FREQUENCY CONTROL wind speed by frequency converter, and experimental section is provided with wind
To adjusting means and velocity-measuring system, wind direction regulating device is made up of a series of adjustable plates for unifying to rotate upwardly and downwardly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621101762.1U CN206259108U (en) | 2016-09-30 | 2016-09-30 | A kind of lower skyscraper solid fire behavior analogue experiment installation of ambient wind effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621101762.1U CN206259108U (en) | 2016-09-30 | 2016-09-30 | A kind of lower skyscraper solid fire behavior analogue experiment installation of ambient wind effect |
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| CN206259108U true CN206259108U (en) | 2017-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621101762.1U Withdrawn - After Issue CN206259108U (en) | 2016-09-30 | 2016-09-30 | A kind of lower skyscraper solid fire behavior analogue experiment installation of ambient wind effect |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106228890A (en) * | 2016-09-30 | 2016-12-14 | 中国科学技术大学 | Skyscraper solid fire behavior analogue experiment installation under a kind of ambient wind effect |
| CN107131915A (en) * | 2017-06-26 | 2017-09-05 | 国网安徽省电力公司电力科学研究院 | A kind of transmission line of electricity overdoes Performance Evaluation detection platform |
| CN108872467A (en) * | 2018-08-06 | 2018-11-23 | 华侨大学 | A kind of building exterior wall heat preserving plate fire spread characteristic test device and test method |
| CN109100464A (en) * | 2018-07-18 | 2018-12-28 | 华侨大学 | The building wall body insulating board material fire combustion characteristics test device of adjustable complex configuration |
| CN109459257A (en) * | 2018-11-13 | 2019-03-12 | 重庆大学 | Pilot system is influenced on building structure under a kind of wind fire coupling |
| CN110221017A (en) * | 2019-04-23 | 2019-09-10 | 中广核工程有限公司 | Combustion experiment platform |
-
2016
- 2016-09-30 CN CN201621101762.1U patent/CN206259108U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106228890A (en) * | 2016-09-30 | 2016-12-14 | 中国科学技术大学 | Skyscraper solid fire behavior analogue experiment installation under a kind of ambient wind effect |
| CN106228890B (en) * | 2016-09-30 | 2022-09-06 | 中国科学技术大学 | Three-dimensional fire behavior simulation experiment device of high-rise building under effect of environmental wind |
| CN107131915A (en) * | 2017-06-26 | 2017-09-05 | 国网安徽省电力公司电力科学研究院 | A kind of transmission line of electricity overdoes Performance Evaluation detection platform |
| CN107131915B (en) * | 2017-06-26 | 2018-06-01 | 国网安徽省电力公司电力科学研究院 | A kind of transmission line of electricity overdoes Performance Evaluation detection platform |
| CN109100464A (en) * | 2018-07-18 | 2018-12-28 | 华侨大学 | The building wall body insulating board material fire combustion characteristics test device of adjustable complex configuration |
| CN109100464B (en) * | 2018-07-18 | 2021-05-11 | 华侨大学 | Building wall insulation board fire burning characteristic testing device with adjustable complex configuration |
| CN108872467A (en) * | 2018-08-06 | 2018-11-23 | 华侨大学 | A kind of building exterior wall heat preserving plate fire spread characteristic test device and test method |
| CN109459257A (en) * | 2018-11-13 | 2019-03-12 | 重庆大学 | Pilot system is influenced on building structure under a kind of wind fire coupling |
| CN109459257B (en) * | 2018-11-13 | 2019-09-03 | 重庆大学 | Pilot system is influenced on building structure under a kind of wind fire coupling |
| CN110221017A (en) * | 2019-04-23 | 2019-09-10 | 中广核工程有限公司 | Combustion experiment platform |
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