CN206311571U - It is applied to the surroundings wind field analogue unit and system of external wall fire-protecting test - Google Patents
It is applied to the surroundings wind field analogue unit and system of external wall fire-protecting test Download PDFInfo
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- CN206311571U CN206311571U CN201621416829.0U CN201621416829U CN206311571U CN 206311571 U CN206311571 U CN 206311571U CN 201621416829 U CN201621416829 U CN 201621416829U CN 206311571 U CN206311571 U CN 206311571U
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- wind field
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- wind
- external wall
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Abstract
The utility model discloses a kind of surroundings wind field analogue unit and system for being applied to executive information systems exterior wall fireproof performance test.The unit includes housing, and is arranged at speed-changing draught fan, Electric air valve, flow straightening grid and the supply air duct sequentially arranged in housing；The speed-changing draught fan is at least corresponding with three Electric air valves, and the flow straightening grid and supply air duct are identical with Electric air valve quantity and correspond, and the end of each supply air duct is equipped with Ball shape nozzle.The system includes multiple surroundings wind field analogue units, support and universal wheel for supporting and moving each unit, and for control system air supply velocity and the control system of wind direction.The utility model is by rational structure design, both can simultaneously reduced scale simulation whole building exterior wall different height at surroundings wind field, also chi can simulate certain and surroundings wind field outside fire bed entirely, so that for the accurate executive information systems fire-protecting test that carries out provides basis and guarantee.
Description
Technical field
The utility model is related to fire engineering technical field, and in particular to be that one kind is applied to external wall fire protecting performance
The surroundings wind field analogue unit and system of experiment.
Background technology
With the development and the aggravation of Development of China's Urbanization of social economy, urban land resource bearing capacity receives unprecedented
Challenge, the intensive utilization of land resource and the high effective integration of space turn into inevitable development trend, many high-rise and super
Skyscraper arises at the historic moment.But along with the huge building scale of construction, intensive personnel's distribution and fire load higher, once send out
Also single, tier building common absolutely not is comparable for calamity of lighting a fire its harmfulness, easily causes great casualties and property loss.Cause
Executive information systems are carried out experimental research under fire to the grasp of fire spread mechanism, the formulation of fireproof fire-extinguishing strategy by this
And the decision-making of evacuating personnel is respectively provided with extremely important directive function.
Many fire cases showed that external wall had turned into the rapid weight for spreading of executive information systems fire in recent years
Approach is wanted, the opening fire overflow behavioural characteristic under different exterior wall forms is studied to ensureing executive information systems security against fire tool
There is very important realistic meaning.Due to acting on the wind speed size of the high-rise surroundings wind field with high-rise building exterior wall with building
The increase of height refers to rule in the trend for incrementally increasing according to power, and the wind speed of outdoor environment wind field is every up to more than ten meters at higher floor
Second even tens metre per second (m/s)s, the fiery overflow behavior that is open during fire working certainly will be subject to the strong influence of surroundings wind field.Therefore, opening
If exhibition executive information systems experimental research under fire when do not consider outdoor environment wind field influence will be unable to it is more truly anti-
The actual fire scenario of external wall is mirrored, thus researches and develops a surroundings wind field mould for being applied to external wall fire-protecting test
Intend device and just seem particularly urgent and important.
Existing each surroundings wind field analogue means is applied to the field beyond Fire Science mostly.Such as Application No.
201110273861.3 patent discloses a kind of indoor sea surface wind field simulation test device, Application No. 201510683151.6
Patent disclose a kind of simulation of wind device of conductor galloping experiment, the patent of Application No. 200910196463.9 is disclosed
A kind of air-conditioning device of simulated comfortable natural wind.
And for the existing surroundings wind field analogue means for being applied to fire test few in number, it is in high-rise and Super High
Application in terms of external wall fire-protecting test still suffers from significant limitation.Such as Application No. 201510906813.1 is special
Profit discloses broad water surface liquid pool fire combustion simulation device under a kind of ambient wind effect, but is simply possible to use in reduced scale fire test.Its
Though in can be realized blowing the variable frequency adjustment of wind speed for the device of surroundings wind field simulation, wind direction can not change, also cannot
Different size of wind speed is exported at different height simultaneously.And for example the patent of Application No. 201420057338.6 discloses one kind
External wind effect lower skyscraper stairwell or vertical shaft fire test analogue means, are also simply possible to use in reduced scale fire test.Wherein
Though the device for surroundings wind field simulation employs moving air curtain system, the mould to any floor outdoor environment wind field is capable of achieving
Reproduced while intending, but cannot realize whole building exterior wall surroundings wind field, wind direction cannot change in addition, be only capable of perpendicular to building
Exterior wall is built, the interval of air supply velocity is also only 0~8m/s, it is difficult to the outdoor environment wind reflected at high-rise building higher floor
.Meanwhile, the geometry in environment simulation of wind device air-supply face is more single in above-mentioned two patent, it is impossible to produce with many
The surroundings wind field of the regularity of distribution is planted, and cannot preferably be applied to the external wall of complex geometric shapes.
Therefore, it is necessary to design one kind can be tried exclusively for the full chi of executive information systems exterior wall and reduced scale fire protecting performance
Test the system that surroundings wind field simulation is provided.
Utility model content
For above-mentioned technical deficiency, the utility model provides a kind of environment for being applied to external wall fire-protecting test
Simulation of wind unit and system, it can provide outside wind field condition for high-rise and super-high buildings fire-protecting test.
To achieve the above object, the technical solution adopted in the utility model is as follows：
The surroundings wind field analogue unit of external wall fire-protecting test, including housing are applied to, and are arranged at housing
Speed-changing draught fan, Electric air valve, flow straightening grid and the supply air duct inside sequentially arranged；The speed-changing draught fan at least with three electronic wind
Valve correspondence, described flow straightening grid and supply air duct are identical with Electric air valve quantity and correspond, and each supply air duct
End be equipped with Ball shape nozzle.
Further, the Electric air valve is single shaft rectangular wind valve, and valve body can freely be rotated in the range of 0 °~90 °.
Further, the quantity of the Ball shape nozzle of each supply air duct end is no less than three, and is evenly distributed, each
Exportable 0~20m/s the wind speed of spout, wind direction can be adjusted in the range of positive and negative 30 ° by artificial or executing agency.
It is applied to the surroundings wind field simulation system of external wall fire-protecting test, including at least two rings as described above
Border simulation of wind unit, all of surroundings wind field analogue unit is combined according to tiling or the mode being superimposed up and down, to provide
Air-supply section is the surroundings wind field of rectangle, triangle or the geometry such as trapezoidal；The surroundings wind field simulation system also includes simultaneously
Support and universal wheel for supporting and moving each surroundings wind field analogue unit, and for control system air supply velocity and wind
To control system.
Further, for convenience of lifting the utility model, the frame bottom is additionally provided with elevating mechanism.
Specifically, the control system includes wind speed Acquisition Instrument, switch board and computer；The switch board is while and ring
Speed-changing draught fan, Electric air valve and Ball shape nozzle connection in the simulation of wind unit of border；The wind speed Acquisition Instrument is located at Ball shape nozzle
Front end, the air speed value for that will collect feeds back to computer, and the computer is connected with switch board, for by switch board control
The wind direction of the rotating speed of speed-changing draught fan processed, the aperture of Electric air valve and Ball shape nozzle, makes the air supply velocity of each air-supply passage
With wind direction stabilization in preset value.
Compared with prior art, the utility model has the advantages that：
(1) the utility model is widely used, both can simultaneously reduced scale simulation whole building exterior wall different height at ambient wind
, also can simulate certain outdoor environment wind field for fire bed by chi entirely, can be applied to simultaneously executive information systems reduced scale and entirely
Chi fire test.
(2) surroundings wind field simulation system of the present utility model can be by support by multiple analogue unit Rapid Combinations and spelling
Connect, be easy to modularization and standardized production.Air-supply section can be combined as rectangle, triangle or trapezoidal etc. several as needed simultaneously
What shape, can be applied to the external wall opening form of various complex geometric shapes.
(3) the utility model is provided with multiple supply air ducts in vertical direction, can be according to somewhere surroundings wind field with height
Changing Pattern simulate the surroundings wind field of different wind speed and directions at multiple height simultaneously by control system, more truly reflect
Go out the distribution character of executive information systems exterior wall surroundings wind field.
(4) air-supply end of the present utility model is in the form of Ball shape nozzle, remote with air supplying distance and velocity attenuation is slow
Good characteristic, can ensure safety between surroundings wind field simulation system and reduced scale or full chi building on fire when carrying out fire test
On the premise of distance, for executive information systems exterior wall provides the surroundings wind field for meeting rate request.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model surroundings wind field simulation system.
Fig. 2 is the internal structure three-view diagram and flow straightening grid left view sectional view of the utility model surroundings wind field analogue unit.
Fig. 3 is the structural representation of Ball shape nozzle in the utility model.
Fig. 4 is the front view for coordinating the experimental rig for carrying out external wall fire-protecting test with the utility model.
Fig. 5 is the vertical view cutaway drawing of experimental rig.
Fig. 6 is the structural representation of parts thereof in experimental rig.
Fig. 7 is the structural representation of rack in experimental rig.
Wherein, the corresponding parts title of reference is：
1- speed-changing draught fans, 2- Electric air valves, 3- flow straightening grids, 4- supply air ducts, 5- Ball shape nozzles, 6- supports, 7- is universal
Wheel, 8- wind speed Acquisition Instruments, 9- switch boards, 10- computers, 11- simulation main walls, 12- simulation ailerons, 13- combustion chambers, 14- racks,
15- thermocouple sensor hole positions, 16- windows, 17- upright guide rails, 18- upper shifting boards, 19- lower shifting boards, 20- moves left plate,
21- moves right plate, 22- guide rails.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples, mode of the present utility model include but not
It is only limitted to following examples.
As shown in Figures 1 to 3, the utility model can be tried there is provided one kind for executive information systems exterior wall fireproof performance
Test the blowing unit and system that external environment condition wind field condition is provided.Its unit includes housing, and is arranged at the speed change in housing
Blower fan 1, the Electric air valve 2 that can arbitrarily adjust aperture, flow straightening grid 3, the supply air duct 4 for promoting air-supply uniformity, are arranged at and send
Wind air channel end Ball shape nozzle 5 (quantity and distribution mode of Ball shape nozzle can be adjusted arbitrarily, in the present embodiment, Ball shape nozzle
Quantity is at least nine, and is evenly distributed).Its system includes that multiple units (can be by tiling or the mode such as superposition is carried out up and down
Any combination, Fig. 1 show upper and lower stacked system), support 6 and universal wheel 7 for supporting and moving each unit, and comprising
Wind speed Acquisition Instrument 8, switch board 9 and computer 10 are interior for control system air supply velocity and the control system of wind direction.Meanwhile,
When full chi fire test is carried out, to enable the utility model preferably to match the external wall opening form of different height,
The bottom of the support 6 is additionally provided with elevating mechanism, can according to actual needs adjust the lifting of whole system.
When the utility model is used, start speed-changing draught fan 1, the wind speed Acquisition Instrument 8 positioned at the front end of Ball shape nozzle 5 will be collected
Air speed value feed back to computer 10, computer 10 controls rotating speed, the aperture of Electric air valve 2 of speed-changing draught fan 1 by switch board 9
And the wind direction of Ball shape nozzle 5, make the air supply velocity of each air-supply passage and wind direction stabilization in preset value.When this practicality is new
Type is used for full chi fire test to simulate during actual outdoor environment wind field that certain fire bed, due to wind speed vertical direction change compared with
It is small, all Electric air valves 2 can be set to standard-sized sheet, the air output of all speed-changing draught fans is set to same institute's required airflow, to provide
Wind speed is uniformly blown face.When the utility model is used for reduced scale fire test with the surroundings wind field for simulating whole building exterior wall,
Each air supply velocity at different height can be set to required size by adjusting the aperture of Electric air valve in each air-supply passage.
The utility model by rational structure design, using between speed-changing draught fan, Electric air valve and Ball shape nozzle
Coordinate, can well realize the simulation of outside space environment wind field, make executive information systems exterior wall fireproof performance test
More true and reliable, acquired test data can be that the formulation of fireproof fire-extinguishing strategy and the decision-making of evacuating personnel provide important ginseng
Examine.
A kind of fireproof performance test apparatus are set forth below, building is realized to illustrate that it coordinates with surroundings wind field analogue means
The fire protecting performance test of external wall structure form.Experimental rig cited by the present embodiment, can well simulate high-rise and superelevation
The influences of the structure type to overflow flame behavior such as layer external wall.And in the prior art on this respect, cannot meet and build
Build the demand of exterior wall form fireproof performance test apparatus.
As also shown in e.g. figs. 4-7, the experimental rig described in the present embodiment includes simulation main wall 11, simulation aileron 12, combustion chamber
13rd, rack 14, governor motion.Simulation main wall 11 bottom offers window 16, and the combustion chamber 13 is arranged on simulation master
By wall 11, and which is provided with the opening connected with window 16.Combustion chamber 13 is used for simulated combustion, so as to produce flame, and passes through
Overflowed on simulation main wall 11 by window 16.Specifically, burner assembly is provided with the combustion chamber 13, the burner assembly
Including the support being arranged in combustion chamber 13, the electronic balance on the support is placed on, is placed on the support on the electronic balance
Chassis, and it is arranged on the burner on support chassis；Electronic balance can measure burner on support chassis by support
Mass change.The size of the opening that described governor motion is then used on change burning room, to realize to building overflow
The analog study of flame influence, specifically, the governor motion includes being arranged in combustion chamber 13 and positioned at the perpendicular of opening both sides
Straight guide 17, while the upper shifting board 18 being slidably connected with two upright guide rails, while being slidably connected with two upright guide rails
Lower shifting board 19, while move left plate 20 with upper shifting board 18 and lower shifting board 19 are slidably connected, and simultaneously with upper movement
What plate 18 and lower shifting board 19 were slidably connected moves right plate 21.Plate is moved up and down by adjustment or the spacing of plate is moved left and right, i.e.,
It is capable of achieving the change of openings of sizes.
Described simulation aileron 12 has two, is divided into simulation main wall 11 both sides, and level correspondence.In the present embodiment,
Two simulation ailerons are slided with a guide rail 22 simultaneously, moving left and right for two simulation ailerons can be so realized, so as to change two
The spacing of individual simulation aileron, realizes the research of the overflow flame behavior of aileron spacing change.Meanwhile, simulation aileron can be fire prevention
Glass, is directly observed such that it is able to the form to flame.
Described rack 14 is arranged in the space that simulation main wall and two simulation ailerons are formed, and is provided with hot-fluid
Sensor, and thermocouple sensor hole position 15 (a diameter of 3mm) is also evenly distributed near the side of simulation main wall 7, for pacifying
Dress thermocouple.
When external wall fire-protecting test is carried out, the utility model is placed in by two simulation ailerons, and air-supply
Intend the space that main wall and two simulation ailerons are formed in face of quasi-mode, then openings of sizes respectively on regulation combustion chamber, and open
Dynamic speed-changing draught fan 1, the wind direction of rotating speed, the aperture of Electric air valve 2 and Ball shape nozzle 5 by controlling speed-changing draught fan 1 makes
Air supply velocity and the wind direction stabilization of each air-supply passage are in preset value.Then in burning lab simulation burning, flame is produced, and lead to
Cross in the space that the utility model is formed simulation main wall and two simulation ailerons and produce external environment condition wind field.In combining environmental
On the premise of wind field, described experimental rig can more realistically simulate executive information systems certain exterior wall overflow flame
Behavior, then by the heat flow density and temperature on heat flow transducer and the thermocouple respectively main wall of measurement simulation in real time, and then obtain
Truly, accurate data.
Experimental rig described in the present embodiment, it utilizes the opening on combustion chamber and the window design on simulation main wall, can
Realize the fire protecting performance research under the fire scenario and different external wall situations of indoor overflow fire.By window or so, up and down
The design of movable panel, and coordinate the utility model to the design of external wall surroundings wind field (while being simulated at different height
Go out different air speed values), realize research of the different executive information systems windows to overflow flame behavioral implications.And pass through
Two activity installations of simulation aileron, and adjust two spaced positions of simulation aileron, it is possible to achieve simulation aileron is outer to building
The research of wall flame behavioral implications.It can be said that after the utility model is coordinated, described experimental rig promotes high level well
And the change of high-rise building exterior wall aileron spacing influences on the behavioral implications of overflow flame and on window area change on overflow flame
Research, for executive information systems fire protection design provides reference.
Above-described embodiment is only one of preferred embodiment of the present utility model, be should not be taken to limit of the present utility model
Protection domain, it is all body design thought of the present utility model and mentally make have no the change of essential meaning or polishing,
The technical problem that it is solved is still consistent with the utility model, should be included in protection domain of the present utility model it
It is interior.
Claims (6)
1. the surroundings wind field analogue unit of external wall fire-protecting test is applied to, it is characterised in that including housing, Yi Jishe
It is placed in speed-changing draught fan (1), Electric air valve (2), flow straightening grid (3) and the supply air duct (4) sequentially arranged in housing；The speed change
Blower fan (1) is at least corresponding with three Electric air valves (2), and described flow straightening grid (3) and supply air duct (4) are and Electric air valve
(2) quantity is identical and corresponds, and the end of each supply air duct (4) is equipped with Ball shape nozzle (5).
2. the surroundings wind field analogue unit for being applied to external wall fire-protecting test according to claim 1, its feature
It is that the Electric air valve (2) is single shaft rectangular wind valve, valve body can freely be rotated in the range of 0 °~90 °.
3. the surroundings wind field analogue unit for being applied to external wall fire-protecting test according to claim 1 and 2, it is special
Levy and be, the quantity of the Ball shape nozzle (5) of each supply air duct (4) end is no less than three, and is evenly distributed, each spout
Exportable 0~20m/s wind speed, wind direction can be adjusted in the range of positive and negative 30 ° by artificial or executing agency.
4. the surroundings wind field simulation system of external wall fire-protecting test is applied to, it is characterised in that including at least two power
Profit requires the surroundings wind field analogue unit described in 1~3 any one, and all of surroundings wind field analogue unit is according to tiling or folds up and down
Plus mode be combined；The surroundings wind field simulation system also includes single for supporting and moving the simulation of each surroundings wind field simultaneously
The support (6) and universal wheel (7) of unit, and for control system air supply velocity and the control system of wind direction.
5. the surroundings wind field simulation system for being applied to external wall fire-protecting test according to claim 4, its feature
It is that support (6) bottom is provided with elevating mechanism.
6. the surroundings wind field simulation system for being applied to external wall fire-protecting test according to claim 4 or 5, it is special
Levy and be, the control system includes wind speed Acquisition Instrument (8), switch board (9) and computer (10)；The switch board (9) while
It is connected with the speed-changing draught fan (1) in surroundings wind field analogue unit, Electric air valve (2) and Ball shape nozzle (5)；The wind speed Acquisition Instrument
(8) positioned at Ball shape nozzle (5) front end, the air speed value for that will collect feeds back to computer (10), the computer (10) with
Switch board (9) is connected, rotating speed, the aperture of Electric air valve (2) and spherical for controlling speed-changing draught fan (1) by switch board (9)
The wind direction of spout (5), makes the air supply velocity of each air-supply passage and wind direction stabilization in preset value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621416829.0U CN206311571U (en) | 2016-12-22 | 2016-12-22 | It is applied to the surroundings wind field analogue unit and system of external wall fire-protecting test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621416829.0U CN206311571U (en) | 2016-12-22 | 2016-12-22 | It is applied to the surroundings wind field analogue unit and system of external wall fire-protecting test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206311571U true CN206311571U (en) | 2017-07-07 |
Family
ID=59247124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621416829.0U Withdrawn - After Issue CN206311571U (en) | 2016-12-22 | 2016-12-22 | It is applied to the surroundings wind field analogue unit and system of external wall fire-protecting test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206311571U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113959086A (en) * | 2021-09-26 | 2022-01-21 | 四川大学 | Simple laminar air supply device |
-
2016
- 2016-12-22 CN CN201621416829.0U patent/CN206311571U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113959086A (en) * | 2021-09-26 | 2022-01-21 | 四川大学 | Simple laminar air supply device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170707 Effective date of abandoning: 20181204 |