CN100585668C - Fire vortex experimental facility - Google Patents
Fire vortex experimental facility Download PDFInfo
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- CN100585668C CN100585668C CN200610149076A CN200610149076A CN100585668C CN 100585668 C CN100585668 C CN 100585668C CN 200610149076 A CN200610149076 A CN 200610149076A CN 200610149076 A CN200610149076 A CN 200610149076A CN 100585668 C CN100585668 C CN 100585668C
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Abstract
The present invention belongs to the technical field of the fire safety, in particular to a simulating experiment device for inflammation in a disaster. The device consists of a smoke exhaust pipeline, flaming cells, a fuel feeding system and a control system, wherein, the smoke exhaust pipeline comprises a rectangular column shaped casing, which is closely integrated to a base seat to form a rectangular column shaped inner space; the middle of the top has the smoke exhaust pipeline; a lateral wall of the inner space is provided with an air inlet which can be opened or closed; with being respectively arranged on four slider blocks, the flaming cells contact closely by twos when the slider blocks move inwards; the fuel feeding system consists of a fuel container arranged out of the casing and a hosepipe connected with the casing; the control system consists of a single-chip microcomputer and the operation system thereof controlling the feeding of the fuel, the moving of the flaming cells and the switching of an ignition device. In the experiment device, the four flaming cells of the same size are arranged on a plane and can be controlled to move flexibly to form a large flaming cell, therefore, the conditions and the rules for forming fire whirlwinds by flames in a plurality of small flaming cells can be studied, and the fire whirlwind experiment of a single large flaming cell can also be performed.
Description
Technical field:
The invention belongs to the fire safety evaluating technical field, be specifically related to the experimental simulation device of disaster combustion.
Background technology:
When forest fire and groups of building fire took place, a kind of strong convection fire phenomena of swirl flame can appear in the air pressure that burning causes height not to wait, when the intensity of swirl flame enough greatly the time, had just formed fire whirl, and at this moment flame height becomes order of magnitude increase.The fire whirl burning rate is fast, and the temperature height in case the HRR of conflagration takes place to add, is difficult to suppress and put out, and the danger coefficient of fire and destructive power are sharply risen, and fire whirl in the fire is in case take place will cause casualties and great property loss.Because duration and degree of heating and direction of heat flow can be undergone mutation in the fire whirl process, the personnel's of putting out the fire life security are brought have a strong impact on.Although people just have research to fire whirl from 60～seventies, in recent years more attract much attention, also obtained certain achievement in theory and experimentally, but also fail fully to grasp its rule up to now, for example development prediction takes place and how to take effective braking measure etc. to the temperature field distribution situation of fire whirl and to it.In existing technical information, find no the report that closes the special-purpose experimental provision of this respect.
Summary of the invention:
The object of the present invention is to provide a kind of can be at laboratory simulation fire whirl, and the experimental provision that can carry out relevant experiment and study.
Technical solution of the present invention is as follows:
Described fire vortex experimental facility, it is characterized in that, it is made of smoke discharging pipe, combustion cell, fuel add-on system and control system, described smoke discharging pipe comprises a square column type housing, it and base driving fit constitute space in the square column type, crown center has the hole that communicates with outer room, and to discharge flue gas, its four sidewall is provided with the air inlet that can open or close as smoke discharging pipe; Described combustion cell is four uncovered rectangular box that can hold fuel, and they are installed in respectively on four slide blocks; This slide block is provided with inner hole thread, they respectively with four screw engages that are installed on the base, this screw axis is vertical with the housing axis, and four combustion cells closely contacts in twos also were provided with drive motor when its length can guarantee that slide block moves inward on the every screw rod; Each combustion cell is provided with portfire; Described fuel add-on system is formed by being arranged on the outer flexible pipe that holds fuel container and be attached thereto of housing, and another termination of flexible pipe is communicated with four combustion cell inner chambers respectively, and has valve control to open and close; Described control system be in order to control fuel add, combustion cell moves, the single-chip microcomputer and the operating system thereof of portfire switch, this single-chip microcomputer has P0, P1, P2 and four input/output interfaces of P3, each interface all is 8, the P1 mouth is connected with power supply and keyboard respectively with the P3 mouth, the P0.5 of P0 mouth is connected with the lighter ignition switch with the fuel addition valve door switch respectively with two of P0.6, and the P2.0～P2.5 position of the P0.0 of P0 mouth～P0.4 position and P2 mouth is connected by the electric motor starting of peripheral circuit 22 with the screw rod controller respectively.The rotation of described four screw rods can manually be finished or be finished by driven by motor, and manually finishing device is that external part at screw rod is equipped with swing handle.
Experimental provision of the present invention by the four pairs of bolt and nut mechanisms with the little combustion cell layout of four same sizes in one plane and can move it by control to merge large-scale combustion pond of formation neatly.Both can study condition and rule that a plurality of little combustion cell burnings form fire whirl, can carry out the fire whirl experiment in single large-scale combustion pond again easily.This mode has greatly improved the flexibility of operation of experimental provision, has increased the diversity of experiment.
Be further described below by embodiment and accompanying drawing.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of fire vortex experimental facility of the present invention.
Fig. 2 is the synoptic diagram of four little combustion cells of the present invention when being separated position.
Fig. 3 is the synoptic diagram of four little combustion cells of the present invention when being merging phase.
Fig. 4 is a kind of embodiment synoptic diagram of portfire of the present invention.
Fig. 5 is a kind of embodiment synoptic diagram of slide block of the present invention.
Fig. 6 is a kind of embodiment circuit diagram of control system of the present invention.
Fig. 7 is a kind of embodiment circuit diagram of lighter in the control system of the present invention.
Fig. 8 is a kind of embodiment circuit diagram of lubricator in the control system of the present invention.
Embodiment
Referring to Fig. 1, housing 1 and base 2 are square, and both driving fits constitute space in the square cylindricality.Fireproof glass is adopted in four sides of housing 1, observes when being convenient to test.Four jiaos and four top margins adopt stainless steels or other metal to make with the fixing fireproof glass of side, make it that enough intensity be arranged.Place at the close stainless steel column in the right of each side has tangent air inlet 12, and air inlet door 13 serves as that axle is installed the aperture that can regulate air inlet easily with stainless steel column.When test was carried out, under buoyancy effect, tangential introduction of air entered, and drove the flow field rotation, thereby produced fire whirl.Case top is equipped with exhaust fume collecting hood 7 and leads to outdoor smoke discharging pipe 8, to discharge flue gas.Base 2 is made with metal material, is used for supporting housing mounted thereto 1 device such as grade.Referring to Fig. 2, four screw rods 9 and 4 guide rails 10 are installed on base 2, their axis overlaps with the diagonal line in housing 1 cross section.This screw rod and the engagement of slide block 17 (referring to Fig. 5) inner hole thread, four combustion cells 3 are separately fixed on four slide blocks.Four screw rods 9 are driven by the motor 11 that is installed in its underpart respectively, and the control of controlled system 6.If manual case then can extend to outer section of screw rod 9 outside the housing, and install handle and get final product.When screw rod 9 rotates, slide block mounted thereto is moved, and then drive moving of the combustion cell 3 that is fixed on the slide block.Portfire 4 places combustion cell 3 sides, above drive point firearm control motor 16 under the control of control system 6 moves to lighter 20 little combustion cell 3 and igniting, after lighting lighter is removed (referring to Fig. 4) when needing igniting.Combustion cell 3 adds container 5 by flexible pipe 14 and housing 1 outer fuel and links to each other, and add container 5 bottoms at fuel and be provided with valve 15, but the open and close manual operation of valve or control by control system 6 and to carry out automatically.This device with four same sizes (the little combustion cell 3 of 10cm * 10cm) orthogonally layout in one plane, referring to Fig. 2.Can rotate by the control screw rod, it is moved inward neatly along orthogonal directions, and large-scale combustion pond of merging formation (20cm * 20cm), referring to Fig. 3.Both can be used as condition and rule that a plurality of little combustion cell burnings of research form fire whirl, can carry out the fire whirl experiment in single large-scale combustion pond again.This experimental provision is a fuel with liquid combustibles such as alcohol.
Referring to Fig. 4, support 18 is installed in the side of little combustion cell 3 by screw retention, lighter control motor 16 is installed on this support 18, electric machine main shaft is a vertical direction, fixedly connected with the vertical section of right angle sway brace 19 in this electric machine main shaft end, lighter 20 is packed in the head of the horizontal segment of right angle sway brace 19.When electric machine main shaft rotates, drive this right angle arm and rotate, thereby make lighter 20 can be positioned at little combustion cell 3 tops or away from little combustion cell 3.Described lighter is the arc generator of using always, when needing igniting under the control of control system 6 energized can light a fire powered-down and forward lighter to place rapidly then away from little combustion cell.
Referring to Fig. 5, establish two guide-track grooves on the bottom surface of slide block 17, the guide rail on it and the base 2 matches.Mesopore is an internal thread hole, with screw rod 9 engagements.The rotation of screw rod 9 is moved slide block 17 on guide rail 10, move thereby drive little combustion cell 3.Two threaded holes of slide block 17 upper surfaces are used for and being connected of little combustion cell.
Referring to Fig. 6,7,8, control system 6 is by being that the control circuit that core and peripheral circuit 22, ignitor circuit 23, lubricator circuit 24 are formed constitutes with single-chip microcomputer 21, P0.0～P0.4 the position of this single-chip microcomputer P0 mouth and the P2.0～P2.5 position of P2 mouth all connect with peripheral circuit 22, peripheral circuit 22 is except there being transistor T 1～T11, outside 11 resistance R 1～R11, also be provided with five plug receptacles of CH1～CH5.Wherein CH5 connects ignition controller motor 16, is used for the position of reference mark firearm.CH1～CH4 is connected with four screw rod control motors 11 respectively, sends the 11 positive and negative rotations of instruction control motor by single-chip microcomputer 21 and drives screw rod 9 rotations, thereby control little combustion cell position.
In Fig. 7, ignitor circuit 23 is made up of transistor T 13, resistance R 23, resistance R 24, solenoid valve U5 and 4 pin socket CH8.Wherein, be connected in series R23 between the base stage of T13 and the port A6, emitter meets VCC, be connected in series R24 between 5 ends of collector and U5, the 1 end ground connection of 4 ends of U5 and CH8,3,2,1 end of U5 are joined with 4,3,2 ends of CH8 respectively, and 1,4 pin of CH8 are connected to lighter 4, the P2.7 pin of single-chip microcomputer 20 joins among port A6 and Fig. 6, goes out instruction control lighter 4 by single-chip microcomputer by the P2.7 human hair combing waste and gives little combustion cell 3 igniting.
Referring to Fig. 8, lubricator circuit 24, by transistor T 14, transistor T 15, resistance R 25 and resistance R 26, diode D4, solenoid valve U6 and port A7, A8, A9 form.Wherein, the emitter of T14 meets VCC, meets R25 between base stage and the port A7, and collector connects the base stage of T15 by R26, the grounded emitter of T15, and U6 and D4 and the anode that meets back D4 connect the collector of T15, the negative electrode of D4 meets VCC2; Port A8 is connected to power supply VCC2, and port A9 is connected to the earth terminal of electromagnetic valve switch, another termination VCC2 of electromagnetic valve switch; Port A7 is connected to the P0.7 pin of single-chip microcomputer 21, is given notice to instruct by the P0.7 position of P0 mouth by Single Chip Microcomputer (SCM) program and refuels for lubricator by-pass valve control 15 to little combustion cell burning food tray 3.
In the foregoing description, used lighter 20 is high-voltage spark lighters, the FBGD-6D explosion-proof type semiconductor electronic lighter that adopts market to buy, ignition controller motor 16 is DC24V direct current generators of buying from market, screw drive motor 11 is DC12V direct current generators, and the single-chip microcomputer 21 in the control system 6 is 89C51 single-chip microcomputers of ATM company.
Claims (2)
1. fire vortex experimental facility, it is characterized in that, it is made of square column type housing, base, smoke discharging pipe, combustion cell, fuel add-on system and control system, described square column type housing and described base driving fit constitute space in the square column type, crown center has the hole that communicates with outer room, as smoke discharging pipe being installed to discharge flue gas, its four sidewall is provided with the air inlet that can open or close; Described combustion cell is four uncovered rectangular box that can hold fuel, and they are installed in respectively on four slide blocks; Each slide block is provided with inner hole thread, they respectively with four screw engages that are installed on the base, on each slide block bottom surface, also establish two guide-track grooves, they respectively with base on four guide rails match, described screw rod and rail axis are vertical with the housing axis, and overlap with the diagonal line in housing cross section; Four combustion cells closely contacts in twos also were provided with drive motor when spiro rod length can guarantee that slide block moves inward on the every screw rod; Each combustion cell is provided with portfire; Described fuel add-on system is formed by being arranged on the outer flexible pipe that holds fuel container and be attached thereto of housing, and another termination of flexible pipe is communicated with four combustion cell inner chambers respectively, and has valve control to open and close; Described control system be in order to control fuel add, combustion cell moves, the single-chip microcomputer and the operating system thereof of portfire switch.
2. fire vortex experimental facility as claimed in claim 1 is characterized in that the external part of described four screw rods is equipped with swing handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610149076A CN100585668C (en) | 2006-11-24 | 2006-11-24 | Fire vortex experimental facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610149076A CN100585668C (en) | 2006-11-24 | 2006-11-24 | Fire vortex experimental facility |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101145296A CN101145296A (en) | 2008-03-19 |
| CN100585668C true CN100585668C (en) | 2010-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610149076A Expired - Fee Related CN100585668C (en) | 2006-11-24 | 2006-11-24 | Fire vortex experimental facility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100585668C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735415B (en) * | 2012-06-08 | 2015-04-08 | 中国科学技术大学 | Underground highway tunnel fire disaster experiment simulating device adopting vertical shaft to carry out natural smoke extraction |
| CN103542996B (en) * | 2012-07-12 | 2016-04-20 | 南京理工大学 | A kind of six flank fire vortex experimental facilities |
| CN106017848B (en) * | 2016-05-27 | 2019-01-22 | 中国科学技术大学 | A kind of fire whirl analogue measurement system |
| 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 |
| CN109959753A (en) * | 2019-03-26 | 2019-07-02 | 上海海事大学 | A kind of corrosion chamber for accelerating processing oil spilling |
| CN112945575B (en) * | 2021-02-25 | 2022-07-22 | 中国矿业大学 | Tower type combustion vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2462382Y (en) * | 2001-01-08 | 2001-11-28 | 中国科学技术大学 | Heat radiating fire disaster characteristic test-bed |
| JP3484566B2 (en) * | 1999-11-29 | 2004-01-06 | 機械研究株式会社 | Educational internal combustion engine experimental device |
| CN1226705C (en) * | 2004-01-09 | 2005-11-09 | 清华大学 | Fire disaster smoke imitation generating device |
-
2006
- 2006-11-24 CN CN200610149076A patent/CN100585668C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3484566B2 (en) * | 1999-11-29 | 2004-01-06 | 機械研究株式会社 | Educational internal combustion engine experimental device |
| CN2462382Y (en) * | 2001-01-08 | 2001-11-28 | 中国科学技术大学 | Heat radiating fire disaster characteristic test-bed |
| CN1226705C (en) * | 2004-01-09 | 2005-11-09 | 清华大学 | Fire disaster smoke imitation generating device |
Non-Patent Citations (6)
| Title |
|---|
| 旋转火焰动力学特性的研究. 夏云春，王清安.火灾科学，第12卷第4期. 2003 |
| 旋转火焰动力学特性的研究. 夏云春，王清安.火灾科学，第12卷第4期. 2003 * |
| 火旋风的三维数值模拟. 张孝华，孙德军，周建军，蒋勇.火灾科学，第14卷第4期. 2005 |
| 火旋风的三维数值模拟. 张孝华，孙德军，周建军，蒋勇.火灾科学，第14卷第4期. 2005 * |
| 火旋风的模拟实验研究. 秦俊，廖光煊，万玉田，范志航.火灾科学，第11卷第2期. 2002 |
| 火旋风的模拟实验研究. 秦俊，廖光煊，万玉田，范志航.火灾科学，第11卷第2期. 2002 * |
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| Publication number | Publication date |
|---|---|
| CN101145296A (en) | 2008-03-19 |
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Granted publication date: 20100127 Termination date: 20151124 |