CN106596835B - A kind of controllable temperature and humidity, oxygen concentration combustible tilt combustion characteristics experimental provision - Google Patents
A kind of controllable temperature and humidity, oxygen concentration combustible tilt combustion characteristics experimental provision Download PDFInfo
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- CN106596835B CN106596835B CN201710006486.3A CN201710006486A CN106596835B CN 106596835 B CN106596835 B CN 106596835B CN 201710006486 A CN201710006486 A CN 201710006486A CN 106596835 B CN106596835 B CN 106596835B
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 59
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 239000001301 oxygen Substances 0.000 title claims abstract description 44
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 44
- 239000007789 gas Substances 0.000 claims abstract description 140
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 43
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003546 flue gas Substances 0.000 claims abstract description 21
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 21
- 238000002474 experimental method Methods 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 18
- 239000000779 smoke Substances 0.000 claims description 15
- 238000005303 weighing Methods 0.000 claims description 14
- 230000003750 conditioning effect Effects 0.000 claims description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 12
- 239000003517 fume Substances 0.000 claims description 11
- 230000004308 accommodation Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 239000000523 sample Substances 0.000 description 30
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000006101 laboratory sample Substances 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 230000001464 adherent effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen(.) Chemical compound [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
- G01N35/00594—Quality control, including calibration or testing of components of the analyser
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Combustion & Propulsion (AREA)
- Molecular Biology (AREA)
- Automation & Control Theory (AREA)
- Quality & Reliability (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses the combustibles of a kind of controllable temperature and humidity, oxygen concentration to tilt combustion characteristics experimental provision, including experimental bench, analysis and Control cabinet, gas gas cylinder group, gas needed for the gas gas cylinder group connect with the analysis and Control cabinet and provides experiment, the analysis and Control cabinet regulating gas parameter simultaneously analyzes experimental data, and the experimental bench record experimental data is transferred to the analysis and Control cabinet and receives gas from the analysis and Control cabinet；The present invention realizes gas mixing and heating, humidification using gas mixing control element and constant temperature and humidity control element, so as to effectively control ratio of nitrogen to oxygen and gas temperature and humidity in gas, real-time, qualitative assessment and analysis are carried out to mass loss rate, specimen surface temperature and the flue gas toxity during combustible combustion under the conditions of varying environment (different humidity, different oxygen concentrations), inclination combustion characteristics of combustible is quantitatively evaluated with this.
Description
Technical field
The present invention relates to the combustibles of a kind of controllable temperature and humidity, oxygen concentration to tilt combustion characteristics experimental provision, is mainly used for
In fire-fighting teaching and research work, belong to experimental teaching or scientific research apparatus field.
Background technique
With the rapid development of our country's economy, the large area combustible being vertically arranged is increasingly appearing in urban architecture
In.Such as adornment, the external wall large board, cinema of urban architecture finishing, large-scale amusement market hangs inside
Curtain etc..These slim combustibles are in fire fighting and rescue mostly, easily contact incendiary source, once being ignited, flame will
It rapidly spreads and the adjacent combustible that ignites, forms uncontrollable large area solid fire.The vertical burning fire of combustible
Occur to bring new research topic to building fire protection brainstrust, the vertical Preventive Measures for Fire of combustible needs new experimental study
The support of method and apparatus.Currently, domestic combustible inclination (vertical) combustion characteristics experimental provision is only capable of in a certain specific environment
The lower measurement for carrying out characterisitic parameter, can not simulate varying environment condition, such as different temperature and humidity, different oxygen concentrations, therefore cannot
The harmfulness of reflection combustible combustion process under the conditions of varying environment (such as altitude environment, high humidity environment) of science.
China Mining University application application No. is the patents of 201410652025.X to disclose a kind of large scale combustible
Combustion characteristics experimental provision is tilted, which includes experimental bench, analysis and Control cabinet, fuel gas storage cylinder, exhaust fume collecting hood and flue
Five parts；Experimental bench includes weighing sensor, igniter, embedded thermocouple and pedestal；It further include adjustable combustible
Fixed device, the fixed device of the combustible includes a rectangular body frame, and the two sides of the main body frame are symmetrically arranged with rail
Road, gliding in tracks are connected with the crossbeam that can hang combustible；It further include that can adjust the fixed device inclination of combustible
The angle adjustment device of angle, wherein side shaft is connect angle adjustment device with main body frame；Further including can be with combustible
Fixed device is embedded in, and realizes the adherent experimental plate of the adherent combustion experiment of combustible.The instrument can flexibly carry out the inclination of multi-angle
Combustion experiment (such as tilt angle is the inclination combustion experiment in the case of 30 °, 45 °, 60 °), quantitative determines specimen surface temperature, matter
Amount loss rate and flue gas toxity, but be only capable of carrying out combustible combustion experiment under a certain specific environment, it can not measure not
Combustible multi-angle oblique aptitude to burn parameter under the conditions of same environment (such as altitude environment, high humidity environment), can not disclose temperature
Moisture effect, oxygen concentration effect are to the influencing mechanism of combustible combustion.It is found that cannot to simulate different oxygen dense for existing laboratory apparatus
The particular surroundings of degree, different temperature and humidity is greatly limited effect to the development of experiment, thus urgent need research and develop one kind can be effective
Control oxygen concentration, the combustible of gas temperature and humidity tilts combustion characteristics experimental provision.
Summary of the invention
The combustible inclination that the present invention devises a kind of controllable temperature and humidity, oxygen concentration in view of the deficiencies of the prior art is burnt special
Property experimental provision, the experimental provision be able to carry out different sizes (full-size 0.3m*1.2m), differing tilt angles (0~
180 °, significant interval is 10 °) experiment of the inclination combustion characteristics of combustible, while can control in combustion chamber gas temperature and humidity and
The environmental conditions such as oxygen concentration can export the mass loss rate, flue gas toxity, examination of combustible combustion in experimentation in real time
Sample surface temperature, so that experimental situation provided by instrument is more wide in range.
The present invention is in order to achieve the above object, using following scheme: a kind of combustible inclination combustion of controllable temperature and humidity, oxygen concentration
Burn characteristic experimental apparatus, including experimental bench, analysis and Control cabinet, gas gas cylinder group, the gas gas cylinder group and the analysis
Gas needed for control cabinet connects and provides experiment, the analysis and Control cabinet regulating gas parameter simultaneously analyze experimental data, the reality
It tests platform record experimental data to be transferred to the analysis and Control cabinet and receive gas from the analysis and Control cabinet, the experimental bench includes
Combustion chamber, gas uniform device, sample frame, inclination angle regulator, adjustable combustible fixed device, weighing and sensing
The inside of device, linear ignition device, embedded thermocouple, smoke collecting device, exhaust fume collecting hood and flue, the combustion chamber forms one
The accommodation space of a upper opening, the exhaust fume collecting hood are arranged in the top of the combustion chamber and connect the opening of the combustion chamber
Portion, the flue are connect with the exhaust fume collecting hood, the gas uniform device, sample frame, inclination angle regulator, adjustable
Combustible is fixed device, weighing sensor, linear ignition device, embedded thermocouple, smoke collecting device and is arranged in the combustion
Interior is burnt, the weighing sensor is used to record the mass change during combustible combustion, and the linear ignition device is used for
Igniting flammable items, the embedded thermocouple is for recording specimen surface temperature, the smoke collecting device acquisition flue gas conveying
To the analysis and Control cabinet；The analysis and Control cabinet includes operation main panel, gas conditioning system, flue gas toxity analyzer, temperature
Data acquisition device, main frame, computer display, mouse-keyboard are spent, the gas conditioning system is for controlling gas
Mixed proportion and temperature and humidity, the flue gas toxity analyzer receive the flue gas sample of the smoke collecting device acquisition, analyze cigarette
Gas ingredient simultaneously exports analysis result to main frame, and the temperature data acquisition device receives the embedded thermocouple note
The data of record analyze specimen surface temperature and export analysis result to main frame, and the main frame records flue gas
Toxicity analyzer, temperature data acquisition device and weighing sensor data, the mouse-keyboard and the main frame connect
It connects, the computer display is connect with the main frame.
Further, the gas uniform device includes gas dispersing device and gas output board, and the gas breaks up dress
It installs in gas output board side, the gas dispersing device can be described around the disk of center axis rotation for one
Disk is circumferentially uniformly provided with several fan-shaped pylones, and the disk is parallel to the gas output board, on the gas output board
Several through-holes are uniformly provided with, gas uniformly breaks up flow direction by the gas dispersing device, then defeated by the gas
Through-hole on ejecting plate enters the combustion chamber.
Further, the gas output board is uniformly distributed 16 column, 21 row circular through hole.
Further, the inclination angle regulator includes pedestal, swivel bearing, fixing pin, the pedestal socket
On the swivel bearing, the swivel bearing is fixedly connected with the vertical frame of the sample frame, when the swivel bearing is along water
Flat axis drives the sample frame to rotate when rotating, 36 are uniformly provided on the circumference of the pedestal and the swivel bearing and is led to
Hole, when the sample frame is adjusted to proper angle, the fixing pin passes through corresponding on the pedestal and the swivel bearing
Through-hole complete fix.
Further, the inclination angle regulator is 2, is separately positioned on corresponding the two of the sample frame
End.
Further, the fixed device of the adjustable combustible is 2 pairs of vertical clamping plates, the upper and lower side frame of the sample frame
It is uniformly provided with screw hole, the both ends of the vertical clamping plate are connect by screw with the sample frame.
Further, the embedded thermocouple is uniformly laterally arranged in the frame of the sample frame.
Further, the gas conditioning system mainly include nitrogen input terminal, oxygen input terminal, mixing valve, solenoid valve,
Constant temperature and humidity chamber, humidifier, heating device, humidity sensor, temperature sensor, the proportion valve regulation nitrogen and oxygen
Input ratio, gas passes through solenoid valve after evenly mixing and enters constant temperature and humidity chamber, the humidifier, heating device difference
The humidity and temperature of the mixed gas are adjusted, the humidity sensor, temperature sensor acquire in the constant temperature and humidity chamber
Humidity, temperature data, the gas conditioning system passes through PID control.
Further, the operation main panel mainly includes temperature control dish, humidity regulation disk, nitrogen input pressure dial plate
And adjusting knob, oxygen input pressure dial plate and adjusting knob, mixed gas output pressure dial plate and adjusting knob, ratio of nitrogen to oxygen
Dial plate and adjusting knob, scram button, power switch button and start to measure button.
Further, the gas gas cylinder group includes nitrogen cylinder, oxygen cylinder and methane gas cylinder, the methane gas cylinder and institute
State the connection of linear ignition device.
Compared to the prior art the present invention, is had the following advantages and beneficial effects:
1, gas mixing and heating, humidification are realized using gas mixing control element and constant temperature and humidity control element,
So as to effectively control ratio of nitrogen to oxygen and temperature and humidity in gas, under the conditions of varying environment (different humidity, different oxygen concentrations)
Mass loss rate, specimen surface temperature and flue gas toxity during combustible combustion carry out real-time, qualitative assessment and divide
Analysis, is quantitatively evaluated the inclination combustion characteristics of the combustible with this；
2, add gas uniform device, it can be ensured that mixed gas with compared with low flow velocity even into combustion chamber；
3, inclination angle regulator realizes the tune of sample frame differing tilt angles (0~180 °, significant interval is 10 °)
It is whole, it adjusts the angle more accurate；
4, by the fixed device of adjustable combustible, the flexible modulation of laboratory sample size may be implemented, so as to
The experiment of kinds of experiments sample size is carried out, and maximum laboratory sample size reaches 0.3m*1.2m；
5, experimental bench is equipped with smoke collecting device, mass loss measures system, material surface temperature measuring system, Ke Yishi
The characteristics ginseng such as mass loss rate, specimen surface temperature and flue gas toxity in the existing vertical combustion process of dynamic monitoring combustible
Number.
Detailed description of the invention
Fig. 1 is overall structure of the present invention；
Fig. 2 is analysis and Control cabinet schematic diagram；
Fig. 3 is the schematic diagram of gas conditioning system；
Fig. 4 is gas uniform device structural schematic diagram；
Fig. 5 is sample frame, inclination angle regulator, adjustable combustible fixture structure schematic diagram；
Fig. 6 is inclination angle regulator enlarged diagram；
In figure: 1, experimental bench, 2, analysis and Control cabinet, 3, gas gas cylinder group, 4, combustion chamber, 5, gas uniform device, 6,
Weighing sensor, 7, linear ignition device, 8, embedded thermocouple, 9, exhaust fume collecting hood, 10, flue, 11, operation main panel, 12, gas
Body regulator control system, 13, flue gas toxity analyzer, 14, temperature data acquisition device, 15, main frame, 16, Computer display
Device, 17, mouse-keyboard, 18, constant temperature and humidity chamber, 19, gas dispersing device, 20, gas output board, 21, pedestal, 22, rotation
Bearing, 23, vertical clamping plate, 24, sample frame, 31, nitrogen input terminal, 32, oxygen input terminal, 33, mixing valve, 34, solenoid valve,
35, humidifier, 36, heating device, 37, humidity sensor, 38, temperature sensor, 39, ball valve, 40, pressure controller, 41,
Pressure gauge, 42, balanced valve, 43, check valve, 44, throttle valve, 45, fan.
Specific embodiment
As shown in Figure 1, the combustible of a kind of controllable temperature and humidity, oxygen concentration tilts combustion characteristics experimental provision, including experiment
Platform 1, analysis and Control cabinet 2, gas gas cylinder group 3, the gas gas cylinder group 3 connect with the analysis and Control cabinet 2 and provide reality
Required gas is tested, the 2 regulating gas parameter of analysis and Control cabinet simultaneously analyzes experimental data, and the experimental bench 1 records experimental data
It is transferred to the analysis and Control cabinet 2 and receives gas from the analysis and Control cabinet 2, the gas gas cylinder group 3 further comprises
Nitrogen cylinder, oxygen cylinder and methane gas cylinder, the methane gas cylinder are connect with the linear ignition device 7, combustion needed for providing igniting
Material.
The experimental bench 1 includes combustion chamber 4, gas uniform device 5, sample frame 24, inclination angle regulator, is adjusted
Formula combustible fixes device, weighing sensor 6, linear ignition device 7, embedded thermocouple 8, smoke collecting device, exhaust fume collecting hood 9
With flue 10, the inside of the combustion chamber 4 forms the accommodation space of a upper opening, and the exhaust fume collecting hood 9 is arranged in the combustion
It burns the top of room 4 and connects the opening portion of the combustion chamber 4, the flue 10 is connect with the exhaust fume collecting hood 9, and the gas is uniform
The fixed device of device 5, sample frame 24, inclination angle regulator, adjustable combustible, weighing sensor 6, linear ignition dress
7, embedded thermocouple 8, the setting of smoke collecting device are set in the combustion chamber 4, the weighing sensor 6 is flammable for recording
Mass change in object combustion process, the linear ignition device 7 are used for igniting flammable items, and the embedded thermocouple 8 is used for
Specimen surface temperature is recorded, the smoke collecting device acquisition flue gas sample is delivered to the analysis and Control cabinet 2.
As shown in Fig. 2, the analysis and Control cabinet 2 includes operation main panel 11, gas conditioning system 12, flue gas toxity analysis
Instrument 13, temperature data acquisition device 14, main frame 15, computer display 16, mouse-keyboard 17, the gas regulating system
System 12 receives the smoke collecting device acquisition for controlling gas mixing ratio and temperature and humidity, the flue gas toxity analyzer 13
Flue gas sample, analysis smoke components simultaneously will analysis result export to main frame 15, the temperature data acquisition device 14
The data that the embedded thermocouple 8 records are received, specimen surface temperature is analyzed and export analysis result to main frame
15, the main frame 15 records flue gas toxity analyzer 13, temperature data acquisition device 14 and the number of weighing sensor 6
According to the mouse-keyboard 17 is connect with the main frame 15, the computer display 16 and the main frame 15
Connection.The operation main panel 11 mainly includes temperature control dish, humidity regulation disk, nitrogen input pressure dial plate and adjusts rotation
Button, oxygen input pressure dial plate and adjusting knob, mixed gas output pressure dial plate and adjusting knob, ratio of nitrogen to oxygen dial plate and tune
It saves knob, scram button, power switch button and starts to measure button.
As shown in figure 3, the gas conditioning system 12 mainly includes nitrogen input terminal 31, oxygen input terminal 32, mixing valve
33, solenoid valve 34, constant temperature and humidity chamber 18, humidifier 35, heating device 36, humidity sensor 37, temperature sensor 38, institute
The input ratio that mixing valve 33 adjusts nitrogen and oxygen is stated, gas passes through solenoid valve 34 after evenly mixing and enters constant temperature and humidity chamber
18, which is made of temperature adjustment and humidification two parts, and the data acquired by internal temperature and relative humidity reach epidemic disaster control
Device processed carries out editing and processing, temperature and humidity needed for being finally reached gas control, while being equipped with gas stirring device, is wind in this example
Fan 45, to ensure the uniformity of gas heating in chamber, humidification.When the cavity indoor pressure drops to the pressure of setting, gas
Regulator control system 12 works, and when pressure reaches the upper limit value of setting, gas conditioning system 12 stops working.The humidifier
35, heating device 36 adjusts the humidity and temperature of the mixed gas respectively, and the humidity sensor 37, temperature sensor 38 are adopted
Collect humidity in the constant temperature and humidity chamber 18, temperature data, the gas conditioning system passes through PID control.
As shown in figure 4, the gas uniform device 5 includes gas dispersing device 19 and gas output board 20, the gas
For the setting of dispersing device 19 in 20 side of gas output board, the gas dispersing device 19 can be around center axis rotation for one
Disk, the disk is circumferentially uniformly provided with several fan-shaped pylones, and the disk is parallel to the gas output board 20, described
Several through-holes are uniformly provided on gas output board 20, gas uniformly breaks up flow direction by the gas dispersing device 19, so
The combustion chamber 4 is entered by the through-hole on the gas output board 20 afterwards.The gas output board 20 is uniformly distributed 16 column 21
Row circular through hole, it is ensured that mixed gas with compared with low flow velocity even into combustion chamber 4.The gas dispersing device 19 is arranged multiple
To cover the gas output board 20, reach better effect.
As shown in Figure 5 and Figure 6, the inclination angle regulator includes pedestal 21, swivel bearing 22, fixing pin, institute
Pedestal 21 to be stated to be socketed on the swivel bearing 22, the swivel bearing 22 is fixedly connected with the vertical frame of the sample frame 24,
The sample frame 24 is driven to rotate when the swivel bearing 22 is rotated along horizontal axis, the pedestal 21 and the swivel bearing
36 through-holes are uniformly provided on 22 circumference, due to being uniformly distributed on the pedestal 21 and swivel bearing 22 of inclination angle regulator
36 through-holes, rotate the sample frame 24, one hole distance of every rotation, and sample frame rotates 10 degree.When the sample frame is adjusted
When to proper angle, the fixing pin passes through corresponding through-hole on the pedestal 21 and the swivel bearing 22 and completes to fix.
The inclination angle regulator is 2, is separately positioned on the corresponding both ends of the sample frame.The adjustable combustible
Fixed device is 2 pairs of vertical clamping plates 23, and the upper and lower side frame of the sample frame 24 is uniformly provided with screw hole, the two of the vertical clamping plate 23
End is connect by screw with the sample frame 24.By adjusting the fixed device of adjustable combustible, laboratory sample may be implemented
The flexible modulation of size, so as to carry out the experiment of different sample sizes, and maximum laboratory sample size is up to 0.3m*
1.2m.The embedded thermocouple 8 is uniformly laterally arranged in the frame of the sample frame.
When carrying out combustion experiment, various sizes of combustible is adapted to by adjusting the vertical clamping plate 23；By described
Inclination angle regulator adjusts tilt angle, and 0~180 ° of adjustable range, significant interval is 10 °；Then combustible is direct
It is fixed on the sample frame；It turns on the power switch, starts gas conditioning system and gas uniform device.Open nitrogen and oxygen
Gas cylinder adjusts nitrogen, oxygen input pressure knob to specified input pressure, adjusts ratio of nitrogen to oxygen knob control nitrogen, oxygen
Input ratio, and be output in constant temperature and humidity chamber 18 with certain pressure.Humid control disk, temperature control disk are adjusted, until chamber
Indoor mixed gas reaches specified temperature and humidity, adjusts pressure output knob, controls the output pressure and flow velocity of gas, gaseous mixture
Body by gas uniform device with compared with low flow velocity evenly into combustion chamber 4.Computer 15 is opened, opens and matches with the equipment
The analysis software of set starts burn combustible object, analyzes experimental data.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications, these improvements and modifications can also be made
Also it should be regarded as protection scope of the present invention.
Claims (9)
1. the combustible of a kind of controllable temperature and humidity, oxygen concentration tilts combustion characteristics experimental provision, including experimental bench (1), analysis control
Cabinet (2) processed, gas gas cylinder group (3), the gas gas cylinder group (3) connect with the analysis and Control cabinet (2) and provide experiment
Required gas, analysis and Control cabinet (2) the regulating gas parameter simultaneously analyze experimental data, experimental bench (1) the record experiment number
According to be transferred to the analysis and Control cabinet (2) and from the analysis and Control cabinet (2) receive gas, it is characterised in that: the experimental bench
It (1) include that combustion chamber (4), gas uniform device (5), sample frame (24), inclination angle regulator, adjustable combustible are solid
Determine device, weighing sensor (6), linear ignition device (7), embedded thermocouple (8), smoke collecting device, exhaust fume collecting hood (9) and
Flue (10), the inside of the combustion chamber (4) form the accommodation space of a upper opening, and the exhaust fume collecting hood (9) is arranged in institute
It states the top of combustion chamber (4) and connects the opening portion of the combustion chamber (4), the flue (10) connect with the exhaust fume collecting hood (9),
The gas uniform device (5), sample frame (24), inclination angle regulator, the fixed device of adjustable combustible, weighing pass
Sensor (6), linear ignition device (7), embedded thermocouple (8), the setting of smoke collecting device are in the combustion chamber (4), institute
Weighing sensor (6) are stated for recording the mass change during combustible combustion, the linear ignition device (7) is for igniting
Combustible, for the embedded thermocouple (8) for recording specimen surface temperature, the smoke collecting device acquisition flue gas sample is defeated
It send to the analysis and Control cabinet (2)；
The analysis and Control cabinet (2) include operation main panel (11), gas conditioning system (12), flue gas toxity analyzer (13),
Temperature data acquisition device (14), main frame (15), computer display (16), mouse-keyboard (17), the gas tune
Control system (12) receives the smoke collecting for controlling gas mixing ratio and temperature and humidity, the flue gas toxity analyzer (13)
The flue gas sample of device acquisition analyzes smoke components and exports analysis result to main frame (15), the temperature data
Acquisition device (14) receives the data of embedded thermocouple (8) record, analyzes specimen surface temperature and will to analyze result defeated
Out to main frame (15), the main frame (15) records flue gas toxity analyzer (13), temperature data acquisition device
(14) and weighing sensor (6) data, the mouse-keyboard (17) connect with the main frame (15), the computer
Display (16) is connect with the main frame (15)；
The gas uniform device (5) includes gas dispersing device (19) and gas output board (20), the gas dispersing device
(19) setting can be around center axis rotation for one in gas output board (20) side, the gas dispersing device (19)
Disk, the disk are circumferentially uniformly provided with several fan-shaped pylones, and the disk is parallel to the gas output board (20), described
Several through-holes are uniformly provided on gas output board (20), gas uniformly breaks up flowing side by the gas dispersing device (19)
To the through-hole then passed through on the gas output board (20) enters the combustion chamber (4).
2. the combustible of a kind of controllable temperature and humidity as described in claim 1, oxygen concentration tilts combustion characteristics experimental provision, special
Sign is: the gas output board (20) is uniformly distributed 16 column, 21 row circular through hole.
3. the combustible of a kind of controllable temperature and humidity as described in claim 1, oxygen concentration tilts combustion characteristics experimental provision, special
Sign is: the inclination angle regulator includes pedestal (21), swivel bearing (22), fixing pin, pedestal (21) set
It connects on the swivel bearing (22), the swivel bearing (22) is fixedly connected with the vertical frame of the sample frame (24), works as institute
The sample frame (24) are driven to rotate when stating swivel bearing (22) along horizontal axis rotation, the pedestal (21) and the rotary shaft
It holds and is uniformly provided with 36 through-holes on the circumference of (22), when the sample frame (24) is adjusted to proper angle, the fixing pin
Corresponding through-hole is completed to fix on the pedestal (21) and the swivel bearing (22).
4. the combustible of a kind of controllable temperature and humidity as claimed in claim 3, oxygen concentration tilts combustion characteristics experimental provision, special
Sign is: the inclination angle regulator is 2, is separately positioned on the corresponding both ends of the sample frame (24).
5. the combustible of a kind of controllable temperature and humidity as described in claim 1, oxygen concentration tilts combustion characteristics experimental provision, special
Sign is: the fixed device of adjustable combustible is 2 pairs of vertical clamping plates (23), and the upper and lower side frame of the sample frame (24) is equal
Even to be equipped with screw hole, the both ends of the vertical clamping plate (23) are connect by screw with the sample frame (24).
6. the combustible of a kind of controllable temperature and humidity as described in claim 1, oxygen concentration tilts combustion characteristics experimental provision, special
Sign is: the embedded thermocouple (8) is uniformly laterally arranged in the frame of the sample frame (24).
7. the combustible of a kind of controllable temperature and humidity as described in claim 1, oxygen concentration tilts combustion characteristics experimental provision, special
Sign is: the gas conditioning system (12) mainly include nitrogen input terminal (31), oxygen input terminal (32), mixing valve (33),
Solenoid valve (34), constant temperature and humidity chamber (18), humidifier (35), heating device (36), humidity sensor (37), temperature sensing
Device (38), the mixing valve (33) adjust the input ratio of nitrogen and oxygen, and gas forms mixed gas after evenly mixing and passes through
Solenoid valve (34) enters constant temperature and humidity chamber (18), and the humidifier (35), heating device (36) adjust the mixing respectively
The humidity and temperature of gas, the humidity sensor (37), temperature sensor (38) acquire in the constant temperature and humidity chamber (18)
Humidity, temperature data, the gas conditioning system (12) passes through PID control.
8. the combustible of a kind of controllable temperature and humidity as described in claim 1, oxygen concentration tilts combustion characteristics experimental provision, special
Sign is: the operation main panel (11) mainly includes temperature control dish, humidity regulation disk, nitrogen input pressure dial plate and adjusting
Knob, oxygen input pressure dial plate and adjusting knob, mixed gas output pressure dial plate and adjusting knob, ratio of nitrogen to oxygen dial plate and
Adjusting knob, scram button, power switch button and start measure button.
9. the combustible of a kind of controllable temperature and humidity as described in claim 1, oxygen concentration tilts combustion characteristics experimental provision, special
Sign is: the gas gas cylinder group (3) includes nitrogen cylinder, oxygen cylinder and methane gas cylinder, the methane gas cylinder and described linear
Igniter connects (7).
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| CN108254487A (en) * | 2017-12-28 | 2018-07-06 | 中国矿业大学 | A kind of variable density, the smoldering feature experimental provision of gas flow rate and test method |
| 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 |
| CN110246408A (en) * | 2019-07-17 | 2019-09-17 | 北京石油化工学院 | Combustible combustion process and monitoring alarm demo system |
| CN110780023A (en) * | 2019-12-04 | 2020-02-11 | 浙江光华科技股份有限公司 | Flame retardant effect test furnace for saturated polyester resin |
| CN113625089B (en) * | 2021-08-17 | 2023-11-28 | 中国科学技术大学 | Fault arc ignition experimental device and experimental method thereof |
| CN114137024B (en) * | 2021-12-01 | 2024-05-14 | 太原理工大学 | System and method for testing burnout characteristics of combustible fluid under variable temperature and variable humidity conditions |
| CN114383987B (en) * | 2022-03-25 | 2022-07-01 | 江苏德尔瑞环保机械有限公司 | Device for detecting discharge pressure and concentration after boiler incineration flue gas purification treatment |
| CN117663193B (en) * | 2024-01-31 | 2024-05-07 | 西安交通大学 | Quick compressor combustion chamber pressure stabilizing device and method |
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