CN106324182A - Device for automatically stabilizing space position of counterflow flame propagation front of solid material - Google Patents
Device for automatically stabilizing space position of counterflow flame propagation front of solid material Download PDFInfo
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- CN106324182A CN106324182A CN201610972320.2A CN201610972320A CN106324182A CN 106324182 A CN106324182 A CN 106324182A CN 201610972320 A CN201610972320 A CN 201610972320A CN 106324182 A CN106324182 A CN 106324182A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
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Abstract
The invention discloses a device for automatically stabilizing the space position of a counterflow flame propagation front of a solid material. A solid material to be measured is installed on a counterflow flame propagation experimental bench which can be automatically controlled by a motor to move along a slide rail; a video camera is used to capture the relative position relationships and relative movement speeds of a flame front of the solid material to be measured and a certain fixed reference baseline nearby in real time; a microcomputer control system is used to obtain these parameters in real time so as to regulate the motor for controlling the position of the counterflow flame propagation experimental bench, so that the position of the flame front relative to the solid reference baseline is always constant; and in this way, the space stabilization of the position of the flame front is realized by moving the relative position of the whole solid material. Stabilization of the space position of the counterflow flame facilitates fixed installation and measurement of measuring sensors and the device, so that gas temperature fields, composition fields and flame dynamic structures nearby the flame front can be carefully observed.
Description
Technical field
The present invention relates to solid material propagation of flame field, in particular, relate to a kind of solid material counter-flow flame climing
Prolong forward locus automatically in determining device.
Background technology
Heat and mass transfer process near flame front in solid material spread process is to affect its Spread Characteristics
Principal element.Therefore, flame front position and the temperature field of close region, the measurement of component field, climing for seeing clearly flame
Prolong mechanism and there is important effect.But under normal conditions, basic feature that solid flame spreads, just its flame front
Locus propelling over time and move forward pass so that we are difficult to accurately catch the heat transfer near flame front
Matter feature.The experimental technique of existing propagation of flame study mechanism is with device (such as: " Fire Science " calendar year 2001 the 2nd phase 88-91
The article " experiment of vertical walls fireclay weld is measured " of page, patent of invention 201320244793.2, patent of invention
201510870178.6), it is all to use video camera to record a video from the whole dynamic fire spread of front direct recording, meanwhile, because surveying
The dynamic arrangements of the instrument of amount fire spread is difficult to, thus static arrangement can only be used to substitute, and this causes cannot be in an experiment
Accurately and effectively flame front, pyrolysis leading edge being separated and positioned, this also counteracts that the follow-up gas for its neighborhood
Temperature field and the real-time measurement of component field, and the accurately measurement of this temperature field and component field is for analyzing and set up material fire
In Spread Model, " thermal-flame is to pyrolysis zone and the heat transfer of preheating zone material and chemical kinetics " has important
Meaning.
Summary of the invention
The purpose of the present invention is to propose to one can be in conjunction with image procossing and micro-processor controlled automatic technology so that solid
It is fixed that the locus of material upstream propagation of flame forward is stayed relatively, consequently facilitating arrange measuring instrument, sensor and equipment, enters
And can observe, position flame front and measure gas temperature field and component field near it.This solid material flame front is empty
Between automatically staying of position determine process and be: solid material to be measured is installed on one can by motor automatically control along slide rail move inverse
On stream propagation of flame experiment frame, by video camera captured in real-time solid material to be measured flame front and a certain fixed reference near it
The relative position relation of baseline and speed of related movement thereof, Control System of Microcomputer obtains these parameters in real time, thus regulates control
Counter-flow flame spreads the motor of experiment frame position so that flame front is the most constant relative to the position of this solid reference baseline, this
Sample, by the relative position of mobile whole solid material it is achieved thereby that the space of flame front position is stayed and determined.
The technical solution used in the present invention is: a kind of solid material counter-flow flame spreads forward locus stays fixed dress automatically
Put, including a driving screw 1, described driving screw disposes a slide plate 2 can by slide block 3 along left side the first slide rail 4 with
And second slide rail 5 on right side moves, two slide rail two ends are all fixed in device fixed plate 7 by fixing anchor 6, and slide plate 2 is by even
Extension bar 8 connects an experiment frame 9, and experiment frame 9 uses anti-Pyroxylin 10 to carry out left and right, three thermal insulation of the back of the body, and experiment frame 9 can be pacified
Putting testing sample sheet material 11, solid plate dead ahead to be measured arranges the first video camera 12, and the adverse current fire of video camera captured in real-time is climing
Prolong picture signal and be automatically transferred to the computer 14 of control room by data line 13, process through image program, read out
The position of flame front versus baseline 15, so calculate flame front speed of related movement and compensate flame front relative
Position returns baseline asynchronous machine 16 operating rate keeping speed of related movement to be 0, motor regulates signal and is transferred to control
The microcomputer chip 17 of motor speed processed, microcomputer chip 17 can operate with program control smooth adjustment asynchronous machine 16, by indexer 18,
Bearing 19, driving screw 1, drive ball screw 20 and then drive the slide plate 2 being fixed on ball screw and by connecting rod 8
The experiment frame 9 being fixed on slide plate carries out relative motion by slide block 3 along slide rail direction, to ensure flame front relative experimental room
The speed of referential is 0, and the locus that i.e. solid counter-flow flame spreads is stayed fixed.It is positioned at the second of solid material front to be measured to take the photograph
The overall situation of the motion of solid experiment material and propagation of flame is shot by camera 21.Whole device is just being placed in exhaust fume collecting hood 22
Lower section, after propagation of flame experiment terminates, can be discharged fume by smoke discharging pipe 23 in time.
The first video camera 12 that the dead ahead on described solid combustible material surface to be measured is laid, it is possible to real-time high-definition shoots
Solid material counter-flow flame to be measured spreads the image of forward, and is transferred to control room computer 14.
The second video camera 21 that the dead ahead on described solid combustible material surface to be measured is laid, it is possible to real-time high-definition shoots
Solid material to be measured motion and the general image of propagation of flame.
Computer 14 in described control room, in experimentation, by automatic programme control, reads camera transmissions
Picture signal, and synchronize to carry out image procossing, and then before calculating speed of related movement and the regulation flame of flame front
Cutting edge of a knife or a sword returns baseline asynchronous machine 16 operating rate keeping speed of related movement to be 0 relative to position, motor regulates signal and passes
It is defeated by microcomputer chip 17.
Described microcomputer chip 17, has higher sensitivity, can use program control asynchronous machine 16 rotating speed is carried out steadily,
It is accurately controlled and regulates.
The described smoke discharging pipe 23 being provided with blower fan, in being mainly used in discharging combustor, solid is tested in sheet material combustion process
The flue gas generated.
Compared with prior art, the present invention has a following technical advantage:
(1) a kind of solid material counter-flow flame spreads forward locus automatically in determining device, utilizes this device, to solid
The dynamic characteristic that material upstream propagation of flame is moved in space in time has carried out the decoupling, therefore of relative time and space
Solid material counter-flow flame is spread be changed into relative quiescent stay determine flame.
(2) a kind of solid material counter-flow flame spreads forward locus automatically in determining device, by making counter-flow flame
Locus is resident, and this will be easy to measure sensor and the fixed installation of device and measurement, so can be for flame before
Gas temperature field, component field and flame dynamic structure near cutting edge of a knife or a sword carries out fine observation, and this temperature field and component field
Accurately measure for analyzing and setting up in material fire spread model that " thermal-flame is to pyrolysis zone and the biography of the material of preheating zone
Heat and chemical kinetics " significant.
Accompanying drawing explanation
Fig. 1 is that a kind of solid material counter-flow flame spreads forward locus automatically in the overall structure signal determining device
Figure；
Fig. 2 is the side view of whole apparatus main body part；
Wherein: 1 is driving screw, 2 is slide plate, and 3 is slide block, and 4 is the first slide rail, and 5 is the second slide rail, and 6 is fixing anchor, and 7 are
Device fixed plate, 8 is connecting rod, and 9 is experiment frame, and 10 is anti-Pyroxylin, and 11 is solid experiment material plate to be measured, and 12 is the first shooting
Machine, 13 is data line, and 14 is control room computer, line on the basis of 15, and 16 is asynchronous machine, and 17 is microcomputer chip, and 18 are
Indexer, 19 is bearing, and 20 is ball screw, and 21 is the second video camera, and 22 is exhaust fume collecting hood, and 23 is smoke discharging pipe.
Detailed description of the invention
The detailed description of the invention of the present invention is described below in conjunction with accompanying drawing.
Fig. 1 gives a kind of solid material counter-flow flame and spreads forward locus and automatically stay and determine the overall structure of device and show
Being intended to, Fig. 2 is the side view of whole apparatus main body part.
As shown in Figure 1, 2, the driving screw 1 of diameter 10 centimetres, length 1.7 meters dispose a slide plate 2 can pass through slide block 3 edge
Diameter 4 centimetres, first slide rail 4 of a length of 1.7 meters and the second slide rail 5 to move, two slide rail two ends are all solid by fixing anchor 6
Be scheduled on 2 meters long, 0.5 meter wide, in the device fixed plate 7 of 2 meters high, slide plate 2 connects one by the connecting rod 8 of a length of 0.5 meter
A length of 0.5 meter, the experiment frame 9 of a height of 1 meter, experiment frame 9 uses fire prevention silicic acid cotton 10 to carry out left and right, three thermal insulation of the back of the body, experiment frame
Can lay solid material 11 to be measured on 9, sheet material dead ahead to be measured arranges the first video camera 12, captured in real-time solid material to be measured
11 flame front images, connect the computer 14 of control room by data line 13, process through image program, read out fire
The position of the versus baseline 15 of flame forward, and then calculate the movement velocity of flame front versus baseline, will regulation signal transmission
To chip 17, microcomputer chip 17 can operate with program control smooth adjustment asynchronous machine 16, connect guide screw by indexer 18, bearing 19
Bar 1, is driven ball screw 20 and then drives the slide plate 2 being fixed on ball screw, is fixed on slide plate by connecting rod 8
Experiment frame 9 and solid material to be measured 11 carry out relative motion by slide block 3 along slide rail direction.Arrange the second video camera 21 for
The overall situation of solid material motion and propagation of flame is recorded.Whole device is placed in immediately below exhaust fume collecting hood 22, has tested
Finish and discharged fume by smoke discharging pipe 23 in time.
Driving screw 1 in the present embodiment and ball screw 20, be changed into linear motion, and energy by the circular motion of motor
Enough carry the weight of experiment frame.
The computer 14 being positioned at control room in the present embodiment, is read and first is taken the photograph by what data line 13 transmitted
The flame front picture signal of the solid experiment material 11 of camera 12 shooting, and synchronize to carry out image procossing, and then calculate
The position of the versus baseline 15 of flame front relative to position recurrence baseline and keeps phase with movement velocity and regulation flame front
To asynchronous machine 16 operating rate that movement velocity is 0, asynchronous machine is regulated signal and is transferred to control the micro-of asynchronous machine 16
Movement sheet 17.
Microcomputer chip 17 in the present embodiment, can use the ARDUINO chip with higher sensitivity, uses PID to put down
Sliding control algolithm, carries out motor speed steadily, is accurately controlled and regulates.
When testing, the material before first testing is installed and is arranged with measuring instrument, including: experiment frame bottom is dropped
To slide rail and ground slightly fit, sheet material to be tested be installed on experiment frame, lay sheet material front first shooting
Machine also regulates the datum line of focal length alignment flame static position, lays the second video camera and carry out overall dynamics shooting, control room
In monitoring computer program-control confirm, ready after, successively: opened smoke-discharging blower fan, open videograph, ignition-material,
Personnel leave combustor, close combustor door, the computer that enters control room carries out automatic programme control, during experiment is carried out, logical
Cross the real time video image of camera head monitoring, grasp the static situation of flame front, and combine naked-eye observation experiment frame
Physical location, grasp experiment degree of carrying out, in time stop experiment by computer program controlled, anti-limited slip plate rises beyond ultimate range,
Whole device is caused damage.After experiment terminates, preserve experimental data, continue to get rid of the flue gas in combustor, afterwards, personnel
In entrance combustor, the remaining situation after terminating the burning of tested sheet material carries out record, all record complete after, to reality
The scene of testing is cleared up and recovers, and prepares for next group test.
Claims (6)
1. a solid material counter-flow flame spreads forward locus automatically in determining device, it is characterised in that: include that one is led
Screw rod (1), described driving screw disposes slide plate (2) can pass through slide block (3) along first slide rail (4) in left side and right side
The second slide rail (5) motion, two slide rail two ends are all fixed in device fixed plate (7) by fixing anchor (6), and slide plate (2) passes through
Connecting rod (8) connects an experiment frame (9), and experiment frame (9) uses anti-Pyroxylin (10) to carry out left and right, three thermal insulation of the back of the body, experiment frame
(9) can lay testing sample sheet material (11) on, solid plate dead ahead to be measured arranges the first video camera (12), and video camera is real-time
The adverse current fire spread picture signal of shooting is automatically transferred to the computer (14) of control room, Jing Guotu by data line (13)
As routine processes, read out the position of flame front versus baseline (15), and then calculate the speed of related movement of flame front
And compensation flame front returns datum line asynchronous machine (16) the operation speed keeping speed of related movement to be 0 relative to position
Rate, regulates motor signal and is transferred to control the microcomputer chip (17) of motor speed, and microcomputer chip (17) can be with program control smooth tune
Joint asynchronous machine (16) operating, by indexer (18), bearing (19), driving screw (1), drives ball screw (20) and then band
The dynamic slide plate (2) being fixed on ball screw (20) and the experiment frame (9) being fixed on slide plate by connecting rod (8) are passed through
Slide block (3) carries out relative motion along slide rail direction, so that flame front is maintained at baseline position and relative experimental room referential
Speed be 0, it is fixed that the locus that i.e. solid counter-flow flame spreads is stayed, and is positioned at second video camera in solid material front to be measured
(21) shooting the overall situation of the motion of solid experiment material and propagation of flame, whole device is just being placed in exhaust fume collecting hood (22)
Lower section, after propagation of flame experiment terminates, can pass through smoke discharging pipe (23) smoke evacuation in time.
A kind of solid material counter-flow flame the most according to claim 1 spreads forward locus automatically in determining device, its
It is characterised by: the first video camera (12) that the dead ahead on described solid combustible material surface to be measured is laid, it is possible to real-time high-definition
Shoot solid material counter-flow flame to be measured and spread the image of forward, and be transferred to control room computer (14).
A kind of solid material counter-flow flame the most according to claim 1 spreads forward locus automatically in determining device, its
It is characterised by: the second video camera (21) that the dead ahead on described solid combustible material surface to be measured is laid, it is possible to real-time high-definition
Shoot solid material to be measured motion and the general image of propagation of flame.
A kind of solid material counter-flow flame the most according to claim 1 spreads forward locus automatically in determining device, its
It is characterised by: the computer (14) in described control room, in experimentation, by automatic programme control, reads camera transmissions
The picture signal come, and synchronize to carry out image procossing, and then calculate speed of related movement and the regulation fire of flame front
Flame forward returns baseline and asynchronous machine (16) operating rate keeping speed of related movement to be 0 relative to position, is adjusted by motor
Joint signal is transferred to microcomputer chip (17).
A kind of solid material counter-flow flame the most according to claim 1 spreads forward locus automatically in determining device, its
It is characterised by: described microcomputer chip (17), there is higher sensitivity, can use and program control asynchronous machine (16) rotating speed be carried out
Steadily, it is accurately controlled and regulates.
A kind of solid material counter-flow flame the most according to claim 1 spreads forward locus automatically in determining device, its
Be characterised by: described in the smoke discharging pipe (23) of blower fan is installed, in being mainly used in discharging combustor, solid experiment sheet material is burned
The flue gas generated in journey.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610972320.2A CN106324182B (en) | 2016-10-28 | 2016-10-28 | A kind of solid material counter-flow flame sprawling forward spatial position is stayed automatically determines device |
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| CN201610972320.2A CN106324182B (en) | 2016-10-28 | 2016-10-28 | A kind of solid material counter-flow flame sprawling forward spatial position is stayed automatically determines device |
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| CN106324182B CN106324182B (en) | 2019-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169407A (en) * | 2017-12-28 | 2018-06-15 | 中国矿业大学 | A kind of vertical combustion characteristics experimental provision of controllable gas environment, abutment wall structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0299283A1 (en) * | 1987-07-11 | 1989-01-18 | Bodenseewerk Perkin-Elmer & Co. GmbH | Atomic absorption spectrometer |
| CN101840571A (en) * | 2010-03-30 | 2010-09-22 | 杭州电子科技大学 | Flame detection method based on video image |
| CN201859013U (en) * | 2010-10-15 | 2011-06-08 | 广州科易光电技术有限公司 | Infrared thermoviewer tobacco temperature measurement system |
| CN102175174A (en) * | 2011-01-24 | 2011-09-07 | 华南理工大学 | Visual measuring device and method of flame frontal surface structure of movable fire source |
| CN102879520A (en) * | 2012-10-15 | 2013-01-16 | 协和机电（无锡）有限公司 | Flame spreading combustion test device |
| CN102928552A (en) * | 2012-11-14 | 2013-02-13 | 中国计量学院 | Movable ignition device for chemicals combustion detection |
| CN105067655A (en) * | 2015-07-31 | 2015-11-18 | 中国科学技术大学 | Flame retardant electric cable vertical combustion performance testing apparatus under barrel-shaped annular radiation heating condition |
| CN205333591U (en) * | 2016-02-02 | 2016-06-22 | 中华人民共和国汕头出入境检验检疫局检验检疫技术中心 | Automatic testing arrangement of toy burning |
-
2016
- 2016-10-28 CN CN201610972320.2A patent/CN106324182B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0299283A1 (en) * | 1987-07-11 | 1989-01-18 | Bodenseewerk Perkin-Elmer & Co. GmbH | Atomic absorption spectrometer |
| CN101840571A (en) * | 2010-03-30 | 2010-09-22 | 杭州电子科技大学 | Flame detection method based on video image |
| CN201859013U (en) * | 2010-10-15 | 2011-06-08 | 广州科易光电技术有限公司 | Infrared thermoviewer tobacco temperature measurement system |
| CN102175174A (en) * | 2011-01-24 | 2011-09-07 | 华南理工大学 | Visual measuring device and method of flame frontal surface structure of movable fire source |
| CN102879520A (en) * | 2012-10-15 | 2013-01-16 | 协和机电（无锡）有限公司 | Flame spreading combustion test device |
| CN102928552A (en) * | 2012-11-14 | 2013-02-13 | 中国计量学院 | Movable ignition device for chemicals combustion detection |
| CN105067655A (en) * | 2015-07-31 | 2015-11-18 | 中国科学技术大学 | Flame retardant electric cable vertical combustion performance testing apparatus under barrel-shaped annular radiation heating condition |
| CN205333591U (en) * | 2016-02-02 | 2016-06-22 | 中华人民共和国汕头出入境检验检疫局检验检疫技术中心 | Automatic testing arrangement of toy burning |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169407A (en) * | 2017-12-28 | 2018-06-15 | 中国矿业大学 | A kind of vertical combustion characteristics experimental provision of controllable gas environment, abutment wall structure |
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