CN106875822B - A kind of facade fire disaster simulation device - Google Patents
A kind of facade fire disaster simulation device Download PDFInfo
- Publication number
- CN106875822B CN106875822B CN201710293156.7A CN201710293156A CN106875822B CN 106875822 B CN106875822 B CN 106875822B CN 201710293156 A CN201710293156 A CN 201710293156A CN 106875822 B CN106875822 B CN 106875822B
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- simulation
- side wall
- fire
- glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/04—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of buildings
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses a kind of facade fire disaster simulation device, feature include: multilayer combustion chamber, simulation side wall, mobile platform, armoured thermocouple probe, thermal radiation flux measuring instrument, thermocouple patch, glass frame, sunlight controlling coated glass, simulation combustible, water cooling heat-flow meter, axial flow blower, DV video camera, it is scalable prevent fires cornice；Multilayer combustion chamber is that two combustion chambers are formed by stacking, and simulation side wall is combined with the wall surface for being equipped with window respectively, forms U-shaped structure；Scalable fire prevention, which is corniced, is mounted on the window top of lower layer's combustion chamber.The invention patent can be used to study high-rise building external wall fire spread situation under ambient wind effect, it can be used for flame and smoke plume Characteristics of Development and alien invasion fire overflow under research side wall restrictive condition and be involved in upper layer chamber generation fire characteristic rule, thus to provide reference in the fire protection design of such building.
Description
Technical field
The invention belongs to building disaster prevention technical fields, and in particular to the U-shaped outer wall of the building face fire spread in city and side
Flame under confined condition and smoke plume feature, alien invasion fire overflow are involved in upper layer chamber there is a phenomenon where fire, with
And the improved test research device that cornices of preventing fires.
Background technique
In recent years, with economic development at full speed, city size constantly expands, and the population increasingly to increase sharply and country are in short supply
Soil contradiction increasingly intensifies, so country has built large quantities of high density, large-scale residential building Fang Qun.These housing groups
Structure have nothing in common with each other, especially have a kind of building structure similar to U-typed, " returning " type, even " L " type, more common building knot
Structure has preferable stability.However, both advantageous and disadvantageous, there is also some peaces while this kind of building possesses higher stability
Full hidden danger.Once fire occurs for this kind of building, flame will spread out along window, spread rapidly further along building wall surface,
The fiery overflow of What is more alien invasion can be crept up along outer wall, by radiant heat transfer to the combustibles of upper layer chamber, high temperature
Flame makes upper layer glass breaking and causes the further occurrence of fire, to cause heavy construction fire, to country and people
The people bring immeasurable casualties and economic loss.Since such building structure is according to there is certain particularity, building it is outer
Wall surface fire also can have certain particularity with the fire that common building form is occurred, it is possible to it is existing that three-dimensional fire spread occur
As.However it is not directed to the case where being ignited inside superstructure in the prior art, such as granted patent " fire disaster on external wall face of urban building
Imitative experimental appliance " (application number: 200910184963.0), do not consider that different lateral wall widths and ambient wind couple the cigarette to be formed yet
Influence of the chimney effect to alien invasion fire.
In addition to this, commonly using to prevent fires from cornicing in engineering technology at present is used to prevent flame along buildingsurface towards upper layer
Building continues to spread, and the size that China's existing building code for fire protection design cornices to fire prevention has following regulation:
In " Code for fire protection design of buildings " GB50016-2014 between the upper and lower layer opening of 6.2.5 money regulation external wall
Solid wall of the height not less than 1.2m should be set or choose fire prevention of the width not less than 1.0m, length not less than opening width and chosen
Eaves；When indoor setting automatic sprinkler system, O.8m the solid wall height between upper and lower layer opening is no less than.
Although achieving the effect that flame is inhibited to creep up to a certain extent, three-dimensional fire occurs for real alien invasion
In the case of, fire is greater, is easy to cornice in a short time around horizontal fire prevention rapidly, further spreads to superstructure, cause
Bigger loss, while in the prior art, it can not arbitrarily lengthen fire prevention and cornice, artistic architecture appearance can be largely effected on.How
It improves building field fire prevention to cornice setting, is an important research content.
Summary of the invention
The present invention to solve the deficiencies in the prior art place, a kind of facade fire disaster simulation device is proposed, to energy
For studying U-shaped buildingsurface face fire spread situation and under the confined condition of side, flame is with smoke plume feature and outside
Facade fire overflow is involved in upper layer combustion chamber and the universal law of fire occurs, and probes into improved influence of cornicing of preventing fires
Effect, thus to provide more preferably emergency plan and the precautionary measures when fire occurs for such building.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of the characteristics of facade fire disaster simulation device of the invention includes: multilayer combustion chamber, simulation side wall, movement
Platform, armoured thermocouple probe, thermal radiation flux measuring instrument, thermocouple patch, sunlight controlling coated glass, simulation combustible,
Water cooling heat-flow meter, DV video camera, axial flow blower, glass frame and scalable fire prevention are corniced；
The multilayer combustion chamber is that two hollow combustion chambers are formed by stacking, including upper layer combustion chamber and lower layer fire
Burn chamber；The upper layer combustion chamber and inner cavity top of lower layer's combustion chamber is provided with spray head, bottom is disposed as bottom
Face steel plate, lower layer's combustion chamber are equipped with fumarole；Wherein the simulation combustible is provided in the upper layer combustion chamber；
The same wall surface of the upper layer combustion chamber and lower layer's combustion chamber is disposed as thermostable transparent glass, with institute
It states the corresponding wall surface of thermostable transparent glass and is set as glass opposite steel plate, be arranged in array on the steel plate of the glass opposite
There is the armoured thermocouple to pop one's head in；
The wall surface of the simulation side wall and the simulation aileron vertically forms U-shaped structure, and is fixed on by triangle diagonal bar
On the mobile platform；Extended between arbitrarily simulate side wall by bolt and jack；Pass through iron on the simulation side wall
Silk, which is arranged in array, several armoured thermocouples probe, for measuring Characteristics of The Distribution of Temperature on side wall；
On the upper layer combustion chamber and lower layer's combustion chamber, and on the wall surface adjacent with the thermostable transparent glass
It is respectively arranged with window and lower window；Glass frame and sunlight control are installed on the upper window of the upper layer combustion chamber
Coated glass；The thermocouple patch has been arranged in array on the sunlight controlling coated glass；And it is controlled with the sunlight
On the adjacent position of coated glass, several are studded with for measuring positive total heat along vertical and radial direction at different height
The water cooling heat-flow meter of flow valuve；Thermocouple is installed inside combustion chamber alien invasion, for recording wall surface thermal conductivity law.
The scalable fire prevention, which is corniced, is arranged in the top of the lower window, and solid by spring, switch mobile bar, stainless steel
Determine block, magnet fixed block, pvc support frame, stainless steel bracing frame, inner casing and shell composition；
In shell setting nested with inner casing, the magnet fixed block is provided on the inner cavity backboard of the shell,
And it is supported by the pvc support frame；The switch mobile bar is adsorbed on the magnet fixed block；The switch moves
The spring is provided in lever；The outside of the spring connects the inner casing；In the front of the switch mobile bar, and it is in
The two sides of the spring are provided with the stainless steel fixed block, and the stainless steel fixed block is carried out by the stainless steel bracing frame
Support；Melted in burning with the pvc support frame and the magnet fixed block is caused to fall, so that the switch mobile bar exists
The magnetic force being subject in horizontal direction is less than the elastic force of the spring, thus under the elastic force effect of spring, the switch mobile bar
It is fitted on the stainless steel fixed block, and drive the inner casing to extend outwardly under the stretching, extension of spring, forms scalable fire prevention
The expansion structure to cornice；
It take face where the upper window of the multilayer combustion chamber and lower window as the front of the multilayer combustion chamber, in institute
It states positive front and is placed with axial flow blower, DV video camera and the thermal radiation flux detector, the axial flow blower is used for mould
Crosswind in quasi- actual environment；When the DV video camera is for recording flame image and sunlight controlling coated glass rupture
It carves；The thermal radiation flux detector is used to measure the heat radiation characteristic that the multilayer combustion chamber overflows flame.
The characteristics of facade fire disaster simulation device of the present invention, lies also in, in the positive two sides, and edge
Dampening square has set up telescopic extension device；The extension apparatus and the simulation side wall form the U-shaped knot of extension
Structure.
The relationship of the positive total heat flow valuve and the openings of sizes of U-shaped structure is characterized by formula:
In formula, ∝ indicates proportional relation, and A is the area of upper window or lower window, and H is the height of upper window or lower window, D
It is the spacing between the simulation side wall of the positive two sides, y is the height of the water cooling heat-flow meter,It is the water cooling heat-flow meter
Heat flow value in the horizontal direction,It is the heat flow value of the water cooling heat-flow meter in the vertical direction.
Compared with prior art, the present invention has fully considered building structure story height and different size side wall, side wall
A situation arises for the upper layer combustion chamber fire that influence of the depth to structure and fiery overflow may cause, using corresponding
Technical measures are protected to study U-shaped building fire, and have achieved the effect that easy to operate better economy, specifically, beneficial
Effect is embodied in:
1, in terms of sidewall structure, the side wall size and structure of usually different U-shaped buildings have many differences, suddenly
Influence of the adjacent building structure to the fiery overflow phenomena of facade opening is omited.The present invention can be by engaging multiple simulation side walls
To realize the distance between the change of side wall depth, change simulation side wall；So as to carry out multiple groups for different side wall conditions
Test, and the influence of ambient wind is coupled, study the influence of " stack effect " of U-shaped building formation to alien invasion fire；
2, the heat transfer direction inside burning alien invasion, the invention proposes setting internal thermocouples, for recording difference
Alien invasion heat transfer situation under thickness；For studying different openings, under the influence of side wall limitation and ambient wind, chamber wall heat-transfer machine
It is formed with important function, so as to understand the heat loss of building chamber in more detail, convenient for reasonable setting building heat insulation system.
3, in terms of fire research, forefathers not yet consider the case where being ignited inside superstructure.Type of the present invention is logical
The window setting glass frame in upper layer combustion chamber is crossed for installing different-thickness sunlight controlling coated glass simulant building glass
Glass curtain wall, and simulated combustion object is placed inside it.The front position bracing wire installation armouring heat of combustion chamber on upper layer
Galvanic couple can measure the outdoor temperature when burning of upper layer chamber.Axial flow blower is placed in combustion chamber front and imitates crosswind, is passed through
Thermocouple patch and water cooling heat-flow meter are set on glass, records combustion process with DV, exists to be conducive to study fiery overflow
Ambient wind effect is lower to cause combustibles in upper chamber room to occur to burn and correlated characteristic when glass breaking.
4, in terms of alien invasion heat-flow measurement, type of the present invention placed 3 or more water cooling heat-flow meters and be set on alien invasion, use
To measure the heat flow value of alien invasion in the case of fire；The present invention can be studied by the way that multiple heat-flow meters are arranged in flame radial direction
The relationship of the factors such as the distance between radial, different height heat flow value and side wall, window area, open height, can more in detail
Carefully, rigorously, comprehensively research occur facade fire when heat flow value with different parameters situation of change；
5, in terms of fire prevention is corniced, cornice structure of commonly preventing fires in engineering technology at present may be single, for alien invasion
Three-dimensional fire spread combustion phenomena, the effect for inhibiting flame to creep up is different to be set；The invention proposes one kind to pass through spring band
It moves flexible fire prevention to cornice, to reduce flame to the greatest extent directed along the three-dimensional sprawling upwards of building wall surface, so that in superstructure
A possibility that fire, occurs for portion；In addition to this, by the extension corniced of preventing fires, the length prevented fires and corniced is had studied to overflow
The influence of fiery characteristic parameter distribution, by comparing different the case where cornicing length of preventing fires come complex optimum, more systematicization is ground
Study carefully skyscraper alien invasion solid fire and fire prevention corniced the relationship of length, for fire prevention cornice length optimization design provide it is certain
Some theoretical reference foundations；
Therefore, the present invention has generation fire inside the outside wall surface fire of research skyscraper and superstructure
Important meaning.
Detailed description of the invention
Fig. 1-1 is the U-shaped buildingsurface face fire simulation experimental apparatus overall structure diagram in city in the present invention；
Fig. 1-2 is the experimental bench device front view in the present invention；
Fig. 2 is two layers of combustion chamber and hot radiation measurement device, water cooling heat-flow meter, DV video camera solid in the present invention
Figure；
Fig. 3 is the docking of simulation side wall and stretching three-dimensional figure in the present invention；
Fig. 4 is the bottom surface steel plate fumarole arrangement schematic diagram in the present invention；
Fig. 5 is that the pyroceram in the present invention arranges front view to panel thermocouple；
Fig. 6 arranges front view for thermocouple on the simulation side wall in the present invention；
Fig. 7 is the glass frame perspective view in the present invention:
Fig. 8 is that the sunlight controlling coated glass thermocouple in the present invention arranges front view；
Fig. 9-1 is that the scalable fire prevention in the present invention is corniced internal structure top view；
Fig. 9-2 is that the scalable fire prevention in the present invention is corniced internal structure side view；
Fig. 9-3 is that the scalable fire prevention in the present invention is corniced internal structure perspective view；
Figure 10 is that the wall surface internal thermocouples and heat-flow meter in the present invention arrange side view；
Figure 11-1 is the vertical and positive mapping of radial heat flows meter in the present invention；
Figure 11-2 is the radial heat flows distributed data schematic diagram in the present invention；
Figure label: the upper window of 1a, window under 1b, 2 simulation side walls, 3 analog orbits, 4 triangle diagonal bars, 5 movable pulleys, 6 move
Moving platform, 7 experiment porch, 8 combustion chambers, 9 spray heads, 10 bottom surface steel plates, 11 fumaroles, 12 glass opposite steel plates, 13 armourings
Thermocouple probe, 14 jacks, 15 bolts；16 measurement through-holes；17 hot radiation measurement devices；18 thermostable transparent glass；19 thermoelectricity
Even patch, 20 sunlight controlling coated glass；21 simulation combustibles；22 water cooling heat-flow meters；23DV video camera；24 axial flow blowers；25
Glass frame；26 iron wires；27 scalable fire prevention are corniced；28 springs；29 switch mobile bars；30 stainless steel fixed blocks；31 magnet are solid
Determine block；32pvc support frame；33 stainless steel bracing frames；34 inner casings；35 shells.
Specific embodiment
As shown in Fig. 1-1 and Fig. 1-2, a kind of facade fire disaster simulation device, feature includes: multilayer combustion chamber
8, side wall 2, mobile platform 6, armoured thermocouple probe 13, thermal radiation flux measuring instrument 17, thermocouple patch 19, sunlight control are simulated
Coated glass 20 processed, simulation combustible 21, water cooling, heat-flow meter 22, DV video camera 23, axial flow blower 24, glass frame 25 and can
Flexible fire prevention cornices 27；
As shown in Fig. 1-1 and Fig. 2, multilayer combustion chamber 8 is that two hollow combustion chambers are formed by stacking, including upper layer is fired
Burn chamber and lower layer's combustion chamber, cube of the combustion chamber having a size of 1m*1m*1m, wall surface by 3cm-5cm thickness thermal insulation board
Composition.8 bottom of multilayer combustion chamber is fixed on experiment porch 7, and the top of the combustion chamber of lower part can be with top combustion chamber
The bottom stacking of room, upper and lower two combustion chambers opening face is coplanar, collectively constitutes simulation aileron；As shown in figures 1 and 3, both sides
Simulation side wall 2 and the wall surface of simulation aileron vertically form U-shaped structure, and be fixed on mobile platform 6 by triangle diagonal bar 4,
It simulates the composite plane steel plate that side wall 2 is 6mm thickness to form, steel plain is simulated side wall and vertically fixed perpendicular to simulation aileron
In on mobile platform 6, and to be reinforced by triangle diagonal bar 4, triangle diagonal bar 4 uses 15 plain bar of φ, and simulation side wall is 2,
It is symmetric about the vertical middle line of simulation aileron opening, simulation side wall 2 connects with simulation aileron, and the gap that connects passes through resistance to height
Warm filler is filled up, and can change side wall depth by increasing the quantity of simulation side wall 2, the length of one of side wall is 30cm
To 100cm, height 220cm；Extended between arbitrarily simulate side wall 2 by bolt 15 and jack 14；Lead on simulation side wall 2
Crossing iron wire 26 and being arranged in array has several armoured thermocouples probe 13, for measuring Characteristics of The Distribution of Temperature on side wall；
Movable platform 6 is made of rectangular base and four movable pulleys 5, and wherein movable pulley carries out on ground simulation track 3
Transverse shifting, simulation side wall 2 carries out seam with the wall surface for being equipped with thermostable transparent glass 18, and is provided at its lateral edge
Telescopic extension device can stretch simulation side wall, change U-shaped width；The bottom of the combustion chamber of rectangular base and bottom
It is coplanar；The inner cavity top of each combustion chamber in place is provided with spray head 9 to study the extinguishing property in combustion chamber；
Ground simulation track 3 is parallel to simulation aileron, is steel channel steel, thickness of the size slightly larger than the movable pulley of movable platform
Degree, and ground rail have only admittedly movable pulley card slot, for determine simulation side wall the distance between.
As shown in Figures 2 and 3, using face where the upper window 1a of multilayer combustion chamber 8 and lower window 1b as multilayer combustion chamber
The front of room 8 is placed with axial flow blower 24, DV video camera and thermal radiation flux detector 17, axial flow blower in positive front
24 for simulating the crosswind in actual environment, wherein the voltage rating 220V of axial flow blower, maximum frequency 50HZ, rated power
3Kw, air quantity 9800m3/ h, axial flow blower 24 can adjust different wind speed, environmental test according to different experimental conditions
The influence of wind；DV video camera is for recording flame image and 20 moment of rupture of sunlight controlling coated glass and relevant flame figure
Picture；And opening 2 and its diameter above in 18 side of thermostable transparent glass is the spare through-hole 16 that 1~3cm can be blocked；Under
Hot radiation measurement device 17 is placed in the front of window 1b, and thermal radiation flux detector 17 overflows fire for measuring multilayer combustion chamber
The heat radiation characteristic of flame overflows the heat radiation characteristic of flame for measuring the multilayer combustion chamber；Such as Fig. 3, and combine Fig. 2 institute
Show, in the two sides of simulation aileron, and along being provided with telescopic extension device in horizontal direction；Extension apparatus and simulation side wall
2 form the U-shaped structure of extension.Simulation side wall 2 is mutually butted by jack 15, bolt 16, connects difference in this manner
Simulation side wall, change U-typed structure width and depth；From Fig. 2 it is also seen that simulating side wall 2 and being equipped with thermostable transparent
The wall surface of glass 18 carries out seam, and is provided with telescopic extension device at lateral edge and is stretched；
As Fig. 1-1 and with shown in Fig. 4, and combine Fig. 2 it is found that upper layer combustion chamber and lower layer's combustion chamber inner cavity top
Be provided with spray head 9, bottom is disposed as bottom surface steel plate 10, lower layer's combustion chamber be equipped with fumarole 11, lower layer's combustion chamber
Bottom surface steel plate 10 opens 9 fumaroles 11, diameter 2cm, for placing liquid fuel or solid fuel or gas burning spray head, nine
The position in hole be respectively center, in front of, in it is rear, left, left front, left back, right in, it is right before, behind the right side, spacing 25cm, each hole can
It blocks；The 10 not aperture of upper layer combustion chamber bottom surface steel plate；It is provided with simulation combustible 21 in combustion chamber at the middle and upper levels；Upper layer combustion
The burning indoor simulation combustible 21 of chamber is polystyrene material, and variable dimension, shape is square, for simulating different scale
Combustible is ignited situation, studies critical fire source power, the influence of alien invasion structure；When simulation combustible 21 is ignited, root
Environment temperature when upper layer combustion chamber causes fire is recorded according to the armoured thermocouple 13 arranged on simulation side wall 2, by environment
The temperature that temperature is ignited with upper layer combustion chamber indoor simulation combustible 21 compares；It is controlled in axial flow blower 24 not ipsilateral
Under wind wind speed, multiple groups different experiments are carried out, the combustion chamber when upper layer combustion chamber under different situations is ignited can be studied
Internal and external temperature, and environment wind effect mechanism is coupled, study the shadow of " stack effect " to alien invasion fire of U-shaped building formation
It rings；
Such as Fig. 5 and with shown in Fig. 6, the same wall surface of upper layer combustion chamber and lower layer's combustion chamber is disposed as high temperature resistant
Transparent glass 18, wall surface corresponding with thermostable transparent glass 18 are set as glass opposite steel plate 12, in glass opposite steel plate
Being arranged in array on 12 has 3 or more armoured thermocouple probes 13；Armouring is housed on upper layer combustion chamber glass opposite steel plate 12
Thermocouple 13, for measuring temperature when upper layer combustion chamber internal simulation combustible 21 is ignited；Square is pressed on simulation side wall 2
Shape array arranges several thermocouple detection devices, for measuring the temperature of fiery overflow；
Such as Fig. 7, and as shown in connection with fig. 1, on upper layer combustion chamber and lower layer's combustion chamber, and with thermostable transparent glass
Window 1a and lower window 1b are respectively arranged on 18 adjacent wall surfaces；Glass is installed on the upper window 1a of upper layer combustion chamber
Glass frame 25 and sunlight controlling coated glass 20；The sunlight for the 2mm~5mm that different-thickness can be installed according to requirement of experiment controls
Coated glass 20 ignites the characteristic of upper layer chamber to study different-thickness glass in lower chamber fire overflow, wherein upper window 1a,
The size of lower window 1b can change；As shown in figure 8, being arranged in array the thermocouple on sunlight controlling coated glass 20
Patch 19；And on the position adjacent with sunlight controlling coated glass 20, so 3 thermocouple patches 19 of setting are in array distribution
Temperature on 20 surface of sunlight controlling coated glass, when so as to precise measurement glass breaking；
As shown in Fig. 9-1, Fig. 9-2 and Fig. 9-3, scalable fire prevention is corniced 27 tops for being arranged in lower window 1b, and by bullet
Spring 28, switch mobile bar 29, stainless steel fixed block 30, magnet fixed block 31, pvc support frame 32, stainless steel bracing frame 33, inner casing
34 and shell 35 form；It is scalable fire prevention cornice 27 height 5cm, length 30cm, width 10cm, by thickness 3mm stainless steel group
At, simultaneous retractable device by spring 28, switch mobile bar 29, stainless steel fixed block 30, magnet fixed block 31, pvc support frame 32,
Stainless steel bracing frame 33 is constituted；
In the setting nested with inner casing 34 of shell 35, it is provided with magnet fixed block 31 on the inner cavity backboard of shell 35, and lead to
It crosses pvc support frame 32 to be supported, pvc material will fully consider red-hot sun baking effect, avoid under the red-hot sun
It is flexible；Switch mobile bar 29 is adsorbed on magnet fixed block 31；Spring 28 is provided in switch mobile bar 29；Outside spring 28
Side connects inner casing 34；In the front of switch mobile bar 29, and the two sides in the spring 28 are provided with stainless steel fixed block 30,
Stainless steel fixed block 30 is supported by stainless steel bracing frame 33；When the flame of lower layer's combustion chamber is crept up to scalable
Fire prevention cornice 27 when, overflow flame impingement fire prevention and cornice, according to selected pvc material, after being more than certain temperature, with pvc support frame
32 melt in burning and magnet fixed block 31 are caused to fall, so that the magnetic force that switch mobile bar 29 is subject in the horizontal direction is less than
The elastic force of spring 28, so that switch mobile bar 29 is fitted on stainless steel fixed block 30 under the elastic force effect of spring 28, and
Under the stretching, extension of spring 28 drive inner casing 34 extend outwardly, formed it is scalable fire prevention cornice 27 expansion structure；Reach inhibition flame
Along the purpose of the vertical three-dimensional sprawling in buildingsurface face, provide fundamental basis to study the different length corniced of preventing fires for us
Data；
As shown in Figure 10, several are inlaid with for measuring positive total heat along vertical and radial direction at different height
The water cooling heat-flow meter 22 of flow valuve；Thermocouple is installed inside combustion chamber alien invasion, for recording wall surface thermal conductivity law.
Such as Figure 11-1, and as shown in connection with fig. 10,3 or more water cooling heat-flow meters 22 are inlayed on combustion chamber alien invasion；3 with
Upper water cooling heat-flow meter 22 is embedded on the central axis of alien invasion respectively and lateral position, is in and can stretch for measuring different height
Contracting fire prevention is corniced vertical and radial heat flows distribution of the alien invasion under the influence of 27 when occurring fire, for probing into overthe openings center line
Heat flow value at heightWith heat flow value at radial positionRatio and opening area A, open height H, between U-shaped simulation side wall 2
Space D, the relationship between vertical height y.As shown in Figure 11-1, combustion chamber alien invasion inlays water cooling hot-fluid on own centre line
Meter 22 and lateral position water cooling heat-flow meter 22, for record alien invasion vertically and radial heat flows distribution characteristics, wherein radial direction position
It sets adjustable.
As shown in Figure 11-2, by the analysis and fitting of experimental data, coupling obtains positive total heat flow valuve and U-shaped structure
It is characterized with the relationship of openings of sizes by formula (1):
In formula (1), ∝ indicates proportional relation, and A is the area of upper window 1a or lower window 1b, and H is upper window 1a or lower window
The height of mouth 1b, D are the spacing between the simulation side wall 2 of the positive two sides, and y is the height of the water cooling heat-flow meter 22,
It is heat flow value of the water cooling heat-flow meter 22 in alien invasion horizontal direction,Be the water cooling heat-flow meter 22 in the vertical direction
Heat flow value, facade fire protection design can be instructed.
Claims (3)
1. a kind of facade fire disaster simulation device, feature includes: multilayer combustion chamber (8), simulation side wall (2), movement
Platform (6), armoured thermocouple probe (13), thermal radiation flux measuring instrument (17), thermocouple patch (19), solar control coated glass glass
Glass (20), simulation combustible (21), water cooling heat-flow meter (22), DV video camera (23), axial flow blower (24), glass frame (25) and
(27) are corniced in scalable fire prevention；
The multilayer combustion chamber (8) is that two hollow combustion chambers are formed by stacking, including upper layer combustion chamber and lower layer fire
Burn chamber；The inner cavity top of the upper layer combustion chamber and lower layer's combustion chamber is provided with spray head (9), bottom is disposed as
Bottom surface steel plate (10), lower layer's combustion chamber are equipped with fumarole (11)；It is wherein provided in the upper layer combustion chamber described
It simulates combustible (21)；
The same wall surface of the upper layer combustion chamber and lower layer's combustion chamber is disposed as thermostable transparent glass (18), with institute
It states the corresponding wall surface of thermostable transparent glass (18) and is set as glass opposite steel plate (12), in glass opposite steel plate (12)
On be arranged in array and have armoured thermocouple probe (13)；
Simulation side wall (2) and the wall surface for simulating aileron vertically form U-shaped structure, and are fixed on institute by triangle diagonal bar (4)
It states on mobile platform (6)；Extended between arbitrarily simulate side wall (2) by bolt (15) and jack (14)；In the simulation
Being arranged in array on side wall (2) by iron wire (26) has several armoured thermocouples to pop one's head in (13), for measuring temperature on side wall
Distribution characteristics；
On the upper layer combustion chamber and lower layer's combustion chamber, and on the wall surface adjacent with the thermostable transparent glass (18)
It is respectively arranged with window (1a) and lower window (1b)；Glass edge is installed on the upper window (1a) of the upper layer combustion chamber
Frame (25) and sunlight controlling coated glass (20)；The thermoelectricity has been arranged in array on the sunlight controlling coated glass (20)
Even patch (19)；And with the sunlight controlling coated glass (20) on adjacent position, along vertical and radial at different height
Direction studs with several for measuring the water cooling heat-flow meter (22) of positive total heat flow valuve；It is installed inside combustion chamber alien invasion
Thermocouple, for recording wall surface thermal conductivity law；
The scalable fire prevention cornices (27) setting in the top of the lower window (1b), and by spring (28), switch mobile bar
(29), stainless steel fixed block (30), magnet fixed block (31), pvc support frame (32), stainless steel bracing frame (33), inner casing (34)
It is formed with shell (35)；
In the shell (35) setting nested with inner casing (34), the magnet is provided on the inner cavity backboard of the shell (35)
Fixed block (31), and be supported by the pvc support frame (32)；Described open is adsorbed on the magnet fixed block (31)
It closes mobile bar (29)；The spring (28) are provided on the switch mobile bar (29)；The outside of the spring (28) connects institute
State inner casing (34)；It is described switch mobile bar (29) front, and in the spring (28) two sides be provided with it is described stainless
Steel fixed block (30), the stainless steel fixed block (30) are supported by the stainless steel bracing frame (33)；With the pvc branch
Support (32) melts in burning and the magnet fixed block (31) is caused to fall, so that the switch mobile bar (29) is in level
The magnetic force being subject on direction is less than the elastic force of the spring (28), so that the switch moves under the elastic force effect of spring (28)
Lever (29) is fitted on the stainless steel fixed block (30), and drives the inner casing (34) outside under the stretching, extension of spring (28)
Extend, forms scalable fire prevention and cornice the expansion structure of (27)；
With face where the upper window (1a) of the multilayer combustion chamber (8) and lower window (1b) for the multilayer combustion chamber (8)
Front, be placed with axial flow blower (24), DV video camera and the thermal radiation flux measuring instrument (17) in the positive front,
The axial flow blower (24) is used to simulate the crosswind in actual environment；The DV video camera is for recording flame image and the sun
Photocontrol coated glass (20) moment of rupture；The thermal radiation flux measuring instrument (17) is overflow for measuring the multilayer combustion chamber
The heat radiation characteristic of flame out.
2. facade fire disaster simulation device according to claim 1, characterized in that in the positive two sides, and
Along being provided with telescopic extension device in horizontal direction；The extension apparatus and simulation side wall (2) form the U of extension
Type structure.
3. facade fire disaster simulation device according to claim 1, characterized in that the positive total heat flow valuve with
The relationship of the openings of sizes of U-shaped structure is characterized by formula (1):
In formula (1), ∝ indicates that proportional relation, A are the areas of upper window (1a) or lower window (1b), H be upper window (1a) or under
The height of window (1b), D are the spacing between the simulation side wall (2) of the positive two sides, and y is the water cooling heat-flow meter (22)
Highly,It is the heat flow value of the water cooling heat-flow meter (22) in the horizontal direction,It is the water cooling heat-flow meter (22) vertical
Heat flow value on direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293156.7A CN106875822B (en) | 2017-04-28 | 2017-04-28 | A kind of facade fire disaster simulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293156.7A CN106875822B (en) | 2017-04-28 | 2017-04-28 | A kind of facade fire disaster simulation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106875822A CN106875822A (en) | 2017-06-20 |
| CN106875822B true CN106875822B (en) | 2019-04-05 |
Family
ID=59161456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710293156.7A Active CN106875822B (en) | 2017-04-28 | 2017-04-28 | A kind of facade fire disaster simulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106875822B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108320649B (en) * | 2018-04-04 | 2024-02-09 | 中国科学技术大学 | Limited space fire experiment simulation device with top opening |
| CN108806457A (en) * | 2018-06-21 | 2018-11-13 | 北京工业大学 | A kind of simulator that research wind environment moderate heat overflow is spread in long-narrow confined space |
| CN109003501B (en) * | 2018-08-09 | 2021-01-08 | 应急管理部天津消防研究所 | Fire simulation experiment device and method for researching building fireproof space |
| CN109637239B (en) * | 2019-03-01 | 2020-12-25 | 中国矿业大学 | Modularized visual fire experiment model |
| CN110221017A (en) * | 2019-04-23 | 2019-09-10 | 中广核工程有限公司 | Combustion experiment platform |
| CN110108834B (en) * | 2019-06-05 | 2024-01-19 | 南京工业大学 | Building outer wall heated board combustion characteristic test system |
| CN112697954B (en) * | 2020-12-01 | 2022-09-06 | 中国科学技术大学 | Experimental device for multi-functional large-scale facade fire spreading prevention and control separation |
| CN112697955B (en) * | 2020-12-01 | 2022-09-30 | 中国科学技术大学 | Multifunctional large-scale internal-external interaction three-dimensional fire spreading experimental device |
| CN113888950B (en) * | 2021-11-08 | 2023-04-28 | 中国科学技术大学 | Fire simulation experiment device for village ancient building fire induction building group under effect of environmental wind |
| CN114910603B (en) * | 2022-05-17 | 2024-08-09 | 应急管理部天津消防研究所 | Comprehensive simulation experiment platform and experiment method for fire disaster |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0973265A (en) * | 1995-09-04 | 1997-03-18 | Matsushita Electric Works Ltd | Disaster prevention simulation system |
| CN101696888A (en) * | 2009-10-23 | 2010-04-21 | 中国科学技术大学 | Simulation experiment device of fire disaster on external wall face of urban building |
| CN102052936A (en) * | 2010-12-09 | 2011-05-11 | 中国科学技术大学 | Fire experimental device for external wall heat-insulation system of building |
| 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 |
| CN104730198A (en) * | 2015-03-25 | 2015-06-24 | 中国科学技术大学 | Simulation experiment device aiming at building exterior wall fireproof structure and performance of fireproof structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090292509A1 (en) * | 2008-05-23 | 2009-11-26 | Thompson Benjamin P | Method and system for assessing response of a building system to an extreme event |
-
2017
- 2017-04-28 CN CN201710293156.7A patent/CN106875822B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0973265A (en) * | 1995-09-04 | 1997-03-18 | Matsushita Electric Works Ltd | Disaster prevention simulation system |
| CN101696888A (en) * | 2009-10-23 | 2010-04-21 | 中国科学技术大学 | Simulation experiment device of fire disaster on external wall face of urban building |
| CN102052936A (en) * | 2010-12-09 | 2011-05-11 | 中国科学技术大学 | Fire experimental device for external wall heat-insulation system of building |
| 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 |
| CN104730198A (en) * | 2015-03-25 | 2015-06-24 | 中国科学技术大学 | Simulation experiment device aiming at building exterior wall fireproof structure and performance of fireproof structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106875822A (en) | 2017-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106875822B (en) | A kind of facade fire disaster simulation device | |
| CN107687930B (en) | A kind of combustion wind tunnel experimental system and experimental method | |
| CN101696888B (en) | Simulation experiment device of fire disaster on external wall face of urban building | |
| CN108682269A (en) | Small-size multifunctional size-adjustable tunnel and train dual-purpose fire experiment platform and experiment method thereof | |
| CN110108834B (en) | Building outer wall heated board combustion characteristic test system | |
| CN106683557A (en) | Simulating device for fire spread in channel type limited space | |
| CN113888950B (en) | Fire simulation experiment device for village ancient building fire induction building group under effect of environmental wind | |
| CN106781983B (en) | Room-corridor opening fire overflow simulation experiment device coupled with mechanical ventilation | |
| CN109100464A (en) | The building wall body insulating board material fire combustion characteristics test device of adjustable complex configuration | |
| CN103512610B (en) | Test bed | |
| CN109003501B (en) | Fire simulation experiment device and method for researching building fireproof space | |
| Zhou et al. | Effectiveness of vertical barriers in preventing lateral flame spread over exposed EPS insulation wall | |
| CN104730198B (en) | It is a kind of for external wall fire proof construction and its analogue experiment installation of performance | |
| CN111145627A (en) | Adjustable Y-shaped tunnel simulation experiment system | |
| Yoshioka et al. | Real-scale fire wind tunnel experiment on generation of firebrands from a house on fire | |
| CN208922613U (en) | Small-size multifunctional size-adjustable tunnel and train dual-purpose fire experiment platform | |
| Zhang et al. | Experimental study of compartment fire development and ejected flame thermal behavior for a large-scale light timber frame construction | |
| CN107845301A (en) | A kind of Intelligence Simulation of compartment fire simulation Training scene | |
| Zhao et al. | Analysis of fire risk associated with photovoltaic power generation system | |
| CN207441093U (en) | A kind of fire prevention analogue experiment installation of the lower facade of side wall limitation | |
| Long-Fei et al. | Numerical simulation and analysis of on-building high-rise building fires | |
| Johnsson et al. | Effects of wind speed and angle on fire spread along privacy fences | |
| CN108806457A (en) | A kind of simulator that research wind environment moderate heat overflow is spread in long-narrow confined space | |
| CN212410485U (en) | Wall body insulation board fire burning characteristic testing device with variable coupling structure | |
| Yan et al. | Study on the Distribution of Fire Temperature Field of L-type Cable Corridor through Numerical Simulation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tunxi road in Baohe District of Hefei city of Anhui Province, No. 193 230009 Co-patentee after: Tianjin Institute of Fire Protection, Ministry of Emergency Management Patentee after: Hefei Polytechnic University Address before: Tunxi road in Baohe District of Hefei city of Anhui Province, No. 193 230009 Co-patentee before: Tianjin Fire Fighting Inst., Ministry of Public Security Patentee before: Hefei Polytechnic University |
|
| CP01 | Change in the name or title of a patent holder |