CN206788128U - A kind of underground coal mine combustible combustion characteristic curve determines device - Google Patents
A kind of underground coal mine combustible combustion characteristic curve determines device Download PDFInfo
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- CN206788128U CN206788128U CN201720244190.0U CN201720244190U CN206788128U CN 206788128 U CN206788128 U CN 206788128U CN 201720244190 U CN201720244190 U CN 201720244190U CN 206788128 U CN206788128 U CN 206788128U
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 46
- 239000003245 coal Substances 0.000 title claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 239000002937 thermal insulation foam Substances 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 230000002687 intercalation Effects 0.000 claims description 6
- 238000009830 intercalation Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 abstract description 4
- 238000004088 simulation Methods 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 11
- 230000008859 change Effects 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000000205 computational method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
A kind of underground coal mine combustible combustion characteristic curve determines device, belongs to underground mine fire prevention and control field.A kind of underground coal mine combustible combustion characteristic curve measure device of the present utility model, including air pump, airway tube, spinner flowmeter, heat insulation foam, thermocouple, retort, cooling layer, O2Sensor, CO sensors, CO2Sensor, notebook computer, temperature collect module, heating tube；Connected between air pump, spinner flowmeter and retort by airway tube；Retort is provided with air inlet, exhaust outlet, thermocouple socket and heating tube socket；During work, start air pump, air delivers to retort through spinner flowmeter；Start heating tube to switch, the combustible in heating response tank, the temperature in thermocouple collection retort；O2Sensor, CO sensors, CO2The concentration of gas in sensor collection retort.The utility model can realize quick, Accurate Determining underground coal mine combustible combustion characteristic curve, and the theoretical foundation of science is provided for mine fire simulation calculation.
Description
Technical field
It is bent more particularly to a kind of underground coal mine combustible combustion characteristic the invention belongs to underground mine fire prevention and control field
Line determines device.
Background technology
The burning things which may cause a fire disaster combustion characteristics of mine, thermal discharge and to generate the changing rule of gas be the distinguished and admirable dynamic analog of mine fire
Premise, its computational methods are divided into three classes：The first kind, mine fire can be reflected and burning situation factor complicated and changeable influences by establishing
Burning things which may cause a fire disaster MATHEMATICAL MODEL OF COMBUSTION, the parameter value of burning things which may cause a fire disaster state is obtained through solving；Second class, simple classification is carried out to mine fire, with
It is easy to describe the combustion characteristics of mine burning things which may cause a fire disaster respectively, there is provided the result of calculation such as thermal discharge, plume generation concentration；3rd class, according to
The fire test of experimental mine, the corresponding burning things which may cause a fire disaster combustion pattern to be burnt under various environment is made, carried for distinguished and admirable dynamic analog
The burning things which may cause a fire disaster heat release for for changing over time and the growing amount of burning gases.
Generally speaking, the first kind describes the combustion characteristics of different burning things which may cause a fire disaster with more accurate mathematical modeling, but until nowadays
There are still insoluble difficulty, while under the conditions of actual mine fire, to the thick of subsurface environment and burning things which may cause a fire disaster combustion position
Slightly understand and Accurate Model and method for solving and mismatch, very big error can be still caused, so being difficult in actual mine fire
In be applied；Although the second class simple classification method can simplify many parameters, error calculated is larger；3rd class burning things which may cause a fire disaster fires
It is a kind of promising method to burn characteristic curve, and under conditions of modern technologies and experimental level, adopting said method is necessary
Various fire tests are carried out under the conditions of experimental mine, it is necessary to which substantial amounts of fund, current China are also real without mine fire is used for
The mine tested, but the combustion process that mine burning things which may cause a fire disaster is simulated by way of laboratory experiment can equally obtain approximate colliery
The combustion pattern of underground combustible, selecting burning things which may cause a fire disaster combustion pattern more can be true to mine fire progress simulation calculation
Reflection fire smoke flow temperature changes with time rule, is the Main Trends of The Development of current fire simulation technology.
In order that mine fire simulation software more accords with when carrying out simulation calculation to fire smoke flow flowing and Temperature Distribution
Colliery scene actual conditions are closed, device is determined to measure coal mine by designing a kind of underground coal mine combustible combustion characteristic curve
The combustion pattern of lower combustible, and obtained combustible combustion characteristic curve is applied in mine fire simulation software.
The content of the invention
In view of the deficienciess of the prior art, the invention provides a kind of underground coal mine combustible combustion characteristic curve measure
Device, the combustion pattern of underground coal mine combustible is determined using experimental provision, experimental cost is reduced, is imitated for mine fire
The true foundation for providing science.
To achieve the above object, the present invention uses following technical scheme：
A kind of underground coal mine combustible combustion characteristic curve determines device, including air pump, airway tube, spinner flowmeter,
Heat insulation foam, thermocouple, retort, cooling layer, O2Sensor, CO sensors, CO2Sensor, notebook computer, temperature acquisition mould
Block, heating tube；
The retort in retort shell, retort inner casing, retort inner casing support, retort including covering；
Further, filled between described retort shell and retort inner casing by heat insulation foam, retort shell with it is anti-
Answer and supported by reaction tank bracket between tank inner casing；
Further, air inlet is arranged at described retort bottom, and exhaust outlet and thermocouple socket are arranged at top, and there is heating side
Pipe socket；
Described air pump is connected by one end of airway tube and spinner flowmeter, and the described spinner flowmeter other end leads to
Cross airway tube and be connected with reacting the air inlet of pot bottom, described retort upper air vent is connected by airway tube and atmospheric environment
Connect, described temperature collect module one end is connected with thermocouple, and the other end is connected by data wire with notebook computer, described
Thermocouple by retort top thermocouple socket intercalation reaction tank middle part；
Described O2Sensor, CO sensors, CO2Sensor is located at coupled reaction tank upper air vent and atmospheric environment
Inside airway tube, described O2Sensor, CO sensors, CO2Connected between sensor and notebook by data wire；
Described heating tube by the middle part of retort side heat pipe socket intercalation reaction tank, the other end of heating tube with
Power supply connects；
Described air pump is used to provide ventilation power for whole test device, ensures that the combustible in retort has enough
Oxygen participate in reaction；
Described spinner flowmeter is used to control the air mass flow being pumped into by air, wherein by two spinner flowmeter strings
Join to ensure that air-flow is in stable state, prevent because air pump pressure instability causes spinner flowmeter reading big ups and downs；
Described heating tube is used to light the combustible in retort；
Described thermocouple is used to determine burning things which may cause a fire disaster plume temperature, and temperature signal is sent into temperature collect module nearby；
Described temperature collect module is used to receive the temperature signal from thermocouple, and temperature signal is converted into numeral
Signal is delivered in notebook computer；
Described O2Sensor is used to determine the O in plume to be measured2Concentration, for calculating the consumption during combustible combustion
Oxygen amount and OUR；
Described CO sensors are used to determine the CO gas concentrations in plume to be measured, obtain producing during combustible combustion
CO generating rates；
Described CO2Sensor is used to determine the CO in plume to be measured2Gas concentration, obtain producing during combustible combustion
Raw CO2Generating rate；
Described notebook computer is used to gather by the data signal and CO, O of temperature collect module conversion2、CO2Gas
Data signal, and store data in hard disk, while each bar curve is shown in notebook computer screen；
The combustion pattern of combustible is determined using described underground coal mine combustible combustion characteristic curve measure device,
Comprise the following steps：
Step 1：The quantitative coal sample processed is taken with balance, opens and is covered in retort, combustible is put into retort, and
Close in retort and cover；
Step 2：Start air pump, and adjust the flow value of two spinner flowmeters, and ensure close to retort side
The buoy of spinner flowmeter is in stable state；
Step 3：Start the corresponding program in notebook computer, gather temperature and O in retort2, CO and CO2Gas
Concentration；
Step 4：Heating tube power supply is connected, and starts heating tube switch, after igniting flammable items, closes heating tube power supply；
Step 5：Combustible afterburnt in retort, the experimental data for arranging notebook computer collection obtain combustible
Oxygen demand change curve, CO generating rates change curve, CO in combustion process2Generating rate change curve.
A kind of underground coal mine combustible combustion characteristic curve measure device of the present invention is actively heated using thermal source
Combustible simulates the combustion process of underground coal mine combustible, and produces during gathering combustible combustion according to respective sensor
CO concentration, CO2Concentration and O2Concentration.
A kind of underground coal mine combustible combustion characteristic curve measure device of the present invention has advantages below：
1st, experimental provision simple structure of the present invention, cost is low, and can quickly, repeatedly test；
2nd, during the present invention can determine underground coal mine including a variety of combustible combustions such as coal, timber, cable, belts
CO2、O2, CO gases concentration curve；
Brief description of the drawings
Fig. 1 is the structure chart that a kind of underground coal mine combustible combustion characteristic curve of the present invention determines device；
Wherein, 1-air pump；2-airway tube；3-spinner flowmeter；4-heat insulation foam；5-thermocouple；6-retort；
7-cooling layer；8—O2Sensor；9-CO sensors；10—CO2Sensor；11-notebook computer；12-temperature acquisition mould
Block；13-heating tube；14-power supply.
Fig. 2 is the reaction jar structure that a kind of underground coal mine combustible combustion characteristic curve of the present invention determines device
Figure.
Wherein, 15-air inlet；16-reaction tank bracket；17-heat insulation foam；18-retort inner casing；Outside 19-retort
Shell；20-thermocouple socket；21-exhaust outlet；Covered in 22-retort；23-rubber stopper；24-heating tube socket.
Embodiment
With reference to embodiment, the present invention is described in further detail.
Embodiment 1
As shown in Figure 1 and Figure 2, underground coal mine combustible combustion characteristic curve measure device include air pump 1, airway tube 2,
Spinner flowmeter 3, heat insulation foam 4, thermocouple 5, retort 6, cooling layer 7, O2Sensor 8, CO sensors 9, CO2Sensor 10,
Notebook computer 11, temperature collect module 12, heating tube 13.
The retort in retort shell 19, retort inner casing 18, retort inner casing support 16, retort including covering
22；
Further, filled between described retort shell 19 and retort inner casing 18 by heat insulation foam 4, retort shell
Supported between 19 and retort inner casing 18 by reaction tank bracket 16；
Further, air inlet 15 is arranged at described retort bottom, and exhaust outlet 21 and thermocouple socket 20, side are arranged at top
There is heating tube socket 24 in face；
Described air pump 1 is connected by airway tube 2 with one end of spinner flowmeter 3, and described spinner flowmeter 3 is another
End is connected by airway tube 2 with reacting the air inlet 15 of pot bottom, described retort upper air vent 21 by airway tube 2 and
Atmospheric environment is connected, and described one end of temperature collect module 12 is connected with thermocouple 5, and the other end passes through data wire and notebook
Computer 11 connects, described thermocouple 5 by retort top the intercalation reaction tank of thermocouple socket 20 middle part；
Described O2Sensor 8, CO sensors 9, CO2Sensor 10 is located at coupled reaction tank upper air vent 21 and air
Inside the airway tube 2 of environment, described O2Sensor 8, CO sensors 9, CO2Pass through data between sensor 10 and notebook 11
Line connects；
Described heating tube 13 by the middle part of the intercalation reaction tank of retort side heat pipe socket 24, heating tube 13
The other end is connected with power supply 14；
The air pump 1 is used to provide ventilation power for whole test device, ensures that the combustible in retort 6 has enough
Oxygen participate in reaction；
The spinner flowmeter 3 is used to control the air mass flow being sent into by air pump 1, wherein by two spinner flowmeter strings
The air that UNPROFOR card flows through is in stable state, prevents because the pressure instability of air pump 1 causes the violent ripple of the reading of spinner flowmeter 3
It is dynamic；
The heating tube 13 is used to light the combustible in retort；
The thermocouple 5 is used to determine burning things which may cause a fire disaster plume temperature, and temperature signal is sent into temperature collect module nearby；
The temperature collect module 12 is used to receive the temperature signal from thermocouple, and temperature signal is converted into numeral
Signal is delivered in notebook computer；
The O2Sensor 8 is used to determine the O in plume to be measured2Concentration, for calculating the oxygen consumption during combustible combustion
Amount and OUR；
The CO sensors 9 are used to determine the CO gas concentrations in plume to be measured, obtain producing during combustible combustion
CO generating rates；
The CO2Sensor 10 is used to determine the CO in plume to be measured2Gas concentration, obtain producing during combustible combustion
Raw CO2Generating rate；
The notebook computer 11 is used to gather the data signal changed by temperature collect module, i.e. CO, O2、 CO2Gas
Data signal, and store data in hard disk while respective curve shown in notebook computer screen；
The combustion pattern of combustible is determined using described underground coal mine combustible combustion characteristic curve measure device,
Comprise the following steps：
Step 1：The quantitative coal sample processed is taken with balance, lid 22 in retort is opened, combustible is put into retort 6
In, and close lid 22 in retort；
Step 2：Start air pump 1, and adjust the flow value of two spinner flowmeters 3, and ensure close to retort side
The buoy of spinner flowmeter be in stable state；
Step 3：Start the corresponding program in notebook computer 11, gather temperature and O in retort 62, CO and CO2Gas
The concentration of body；
Step 4：The power supply of heating tube 13 is connected, and starts the switch of heating tube 13, after igniting flammable items, closes heating
The power supply of pipe 13；
Step 5：In the combustible afterburnt in retort 6, the experimental data that arrangement notebook computer 11 gathers obtains can
Oxygen demand change curve, CO generating rates change curve, CO in combustion things combustion process2Generating rate change curve.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations, although
The present invention is described in detail with reference to the foregoing embodiments, those skilled in the art can be remembered to foregoing embodiments
The technical scheme of load is modified, or equivalent substitution is carried out to which part technical characteristic, and these modifications or replacement, and
The essence of appropriate technical solution is not set to depart from the scope of various embodiments of the present invention technical scheme.
Claims (4)
1. a kind of underground coal mine combustible combustion characteristic curve determines device, it is characterised in that described measure device includes sky
Air pump, airway tube, spinner flowmeter, heat insulation foam, thermocouple, retort, cooling layer, O2Sensor, CO sensors, CO2Sensing
Device, notebook computer, temperature collect module, heating tube；
Connected in series by airway tube between described spinner flowmeter；
Described air pump is connected by one end of airway tube and spinner flowmeter, and the described spinner flowmeter other end is by leading
Tracheae is connected with reacting the air inlet of pot bottom；
Described retort upper air vent is connected by airway tube with atmospheric environment, described temperature collect module one end and heat
Galvanic couple is connected, and the other end is connected by data wire with notebook computer；
Described thermocouple by retort top thermocouple socket intercalation reaction tank middle part.
2. underground coal mine combustible combustion characteristic curve according to claim 1 determines device, it is characterised in that described
O2Sensor, CO sensors, CO2Sensor is located inside coupled reaction tank upper air vent and the airway tube of atmospheric environment, described
O2Sensor, CO sensors, CO2Connected between sensor and notebook computer by data wire.
3. underground coal mine combustible combustion characteristic curve according to claim 1 determines device, it is characterised in that described
Heating tube is connected by the middle part of retort side heat pipe socket intercalation reaction tank, the other end of heating tube with power supply.
4. underground coal mine combustible combustion characteristic curve according to claim 1 determines device, it is characterised in that described anti-
Tank is answered including being covered in retort shell, retort inner casing, retort inner casing support, retort；
Filled between described retort shell and retort inner casing by heat insulation foam, between retort shell and retort inner casing by
React tank bracket support；
Air inlet is arranged at described retort bottom, and exhaust outlet and thermocouple socket are arranged at top, and there is heating tube socket side.
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| CN201720244190.0U CN206788128U (en) | 2017-03-13 | 2017-03-13 | A kind of underground coal mine combustible combustion characteristic curve determines device |
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| CN201720244190.0U CN206788128U (en) | 2017-03-13 | 2017-03-13 | A kind of underground coal mine combustible combustion characteristic curve determines device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111766331A (en) * | 2020-07-09 | 2020-10-13 | 安徽工程大学 | Portable building material combustion performance testing device and testing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111766331A (en) * | 2020-07-09 | 2020-10-13 | 安徽工程大学 | Portable building material combustion performance testing device and testing method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20171222 Termination date: 20190313 |