CN104483350A - Device for simulating programmed temperature rising and adiabatic oxidation of coal - Google Patents

Device for simulating programmed temperature rising and adiabatic oxidation of coal Download PDF

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Publication number
CN104483350A
CN104483350A CN201410674101.7A CN201410674101A CN104483350A CN 104483350 A CN104483350 A CN 104483350A CN 201410674101 A CN201410674101 A CN 201410674101A CN 104483350 A CN104483350 A CN 104483350A
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temperature
coal sample
gas
sample tank
adiabatic
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朱红青
谭波
张振
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China University of Mining and Technology Beijing CUMTB
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China University of Mining and Technology Beijing CUMTB
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Abstract

The invention provides a device for simulating programmed temperature rising and adiabatic oxidation of coal. The device comprises a gas feeding and distributing part, an in-box temperature control part, a gas acquisition and analysis part and a data acquisition part, wherein the gas feeding and distributing part is used for automatically controlling the flow of gases flowing into the device and mixing the gases flowing into the device; the in-box temperature control part is used for controlling and recording the temperature in a programmed temperature control box by a plurality of control instruments according to a control mode selected by a control button; the gas acquisition and analysis part is used for automatically acquiring, detecting and recording gas compositions after the process of temperature rising and/or adiabatic oxidation; and the data acquisition part is used for automatically recording the temperature, flow and pressure data of a coal sample in at least one coal sample tank by utilizing a PC. The device provided by the invention has the advantages that the automatic control for simulating the process of programmed temperature rising and adiabatic oxidation of the coal can be realized by utilizing the device, the data such as temperature and flow of the gases and temperature of the coal sample can be automatically controlled and recorded, human errors are reduced and the accuracy and the efficiency of the simulation process are improved.

Description

The device of the intensification of simulation coal and adiabatic oxygenation
Technical field
The present invention relates to a kind of device of simulating coal intensification and adiabatic oxygenation, particularly relate to the device that a kind of energy automatic imitation analyzes coal intensification and Spontaneous Combustion Indication Gas and adiabatic oxygenation thereof.
Background technology
At underground coal mine, under condition of different temperatures, coal and oxygen reaction can produce the gases such as carbon monoxide, carbon dioxide, methane, ethene, acetylene, and the generation of oxygen consumption and these gases all has good corresponding relation with coal temperature.For this reason, a kind ofly can simulate coal at low temperatures and the adiabatic apparatus of spontaneous combustion oxidation detects the gas componant in coal combustion product by designing, and then effectively judge whether coal low temperature spontaneous combustion and spontaneous combustion degree thereof occur.
At present, the analysis of existing spontaneous combustion of simulated coal index gas is set of device, and the device of simulating the process of coal adiabatic oxygenation is another set of independently device, and thus cost is relatively high.And, the devices such as existing temperature programme device and adiabatic oxygenation device exist simulation process manual operation time-consuming, take a lot of work, and affect the shortcomings such as simulate effect with human error.Meanwhile, can't consider that multiple gases mixes when testing in gas circuit control procedure, gas circuit leakproofness is good not, is difficult to the effect reaching anticipation, is difficult to the different oxygen concentration of express-analysis to the impact of coal spontaneous combustion.
Summary of the invention
In view of this, be necessary to provide a kind of device of simulating coal intensification and adiabatic oxygenation, coal adiabatic oxygenation and intensification can be simulated automatically, fast and accurately, thus while providing cost savings, effectively can also improve precision and the efficiency of simulation.
The invention provides a kind of device of simulating coal intensification and adiabatic oxygenation, comprising:
Air inlet distribution portion, for automatically controlling the flow of the gas flowing into described device and mixing the gas flowing into described device, comprising: an air compressor, multiple pressure maintaining valve, multiple tensimeter, multiple flowmeter, an air inlet mixing bunker and multiple control instrument;
The temperature inside the box control part, comprises a temperature programmed control case, and described the temperature inside the box control part is used for, according to the control mode selected by a control knob, utilizing industrial control software program, being controlled and record the temperature in described temperature programmed control case by described multiple control instrument;
Gas collecting analysis portion, for automatically gathering, detect and recording the gas componant after intensification and/or adiabatic oxygenation process, comprising: mixing bunker of giving vent to anger, refrigeratory and gas chromatographicanalyzer; And
Data acquisition portion, comprise PC and at least one coal sample tank, for utilizing described PC automatically to record the temperature of the coal sample in described at least one coal sample tank, flow and pressure data, wherein, described at least one coal sample tank comprise following in one or more: heat transfer coal sample tank and adiabatic coal sample tank.
The present invention also provides a kind of coal of simulating to heat up and the device of adiabatic oxygenation, comprise by intensification simulation system and adiabatic oxygenation simulation system share as lower device:
Air inlet distribution portion, for automatically controlling the flow of the gas flowing into described device and mixing the gas flowing into described device;
The temperature inside the box control part, for according to the control mode selected by a control knob, is utilized industrial control software program, is controlled and record the temperature in a temperature programmed control case by described multiple control instrument;
Gas collecting analysis portion, for automatically gathering, detect and recording the gas componant after intensification and/or adiabatic oxygenation process; And
Data acquisition portion, for utilizing a PC automatically to record the temperature of the coal sample at least one coal sample tank, flow and pressure data, wherein, described at least one coal sample tank comprise following in one or more: heat transfer coal sample tank and adiabatic coal sample tank.
Compared to prior art, the device of simulation coal intensification provided by the invention and adiabatic oxygenation, controls inlet gas flow automatically by computer program, realizes multiple gases mixing, integrates spontaneous combustion of simulated coal temperature programme and simulation coal adiabatic oxygenation two kinds of functions.And automatically record the data such as temperature and flow, realize the simulation process Automated condtrol of this device.Thus the cost that more effective control multiple gases quantitatively mixes, ensures the good leakproofness of gas circuit, reduces simulation process.Meanwhile, the manual operation in simulation process can also be simplified, reduce human error, improve degree of accuracy and the efficiency of simulation.
Accompanying drawing explanation
Fig. 1 is the structural framing figure of the simulation coal intensification of an embodiment of the present invention and the device of adiabatic oxygenation.
Fig. 2 is the concrete structure schematic diagram of the device of the simulation coal intensification shown in Fig. 1 and adiabatic oxygenation.
Major components symbol description
Device 100
Air compressor 1
Pressure maintaining valve 2
Tensimeter 3
Flowmeter 4
Air inlet mixing bunker 5
Air preheat copper pipe 6
Heat transfer coal sample tank 7
Adiabatic coal sample tank 8
To give vent to anger mixing bunker 9
Thermofin 10
Temperature programmed control case 11
Well heater 12
Fan 13
Temperature sensor 14
Coal sample 15
Refrigeratory 16
Control instrument 17
Control knob 18
Gas chromatographicanalyzer 19
PC 20
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Refer to shown in Fig. 1, it is the schematic diagram of the simulation coal intensification of an embodiment of the present invention and the device 100 of adiabatic oxygenation.Device 100 comprises an intensification simulation system and an adiabatic oxygenation simulation system, can realize simulating the process that coal sample 15 (shown in Fig. 2) carries out temperature programme by the intensification simulation system of this device 100, can realize by the adiabatic oxygenation simulation system of this device 100 process simulating coal sample 15 (shown in Fig. 2) adiabatic oxygenation.In one embodiment, this device 100 is an experimental provision for testing.
In one embodiment, device 100 comprises air inlet distribution portion A, the temperature inside the box control part B, gas collecting analysis portion C, data acquisition portion D.Wherein, air inlet distribution portion A, the temperature inside the box control part B, gas collecting analysis portion C, data acquisition portion D are shared by heat up simulation system and adiabatic oxygenation simulation system.
See also Fig. 2, air inlet distribution portion A comprises air compressor 1, some gas cylinders (containing reduction valve), some pressure maintaining valves 2, some tensimeters 3, some flowmeters 4, air inlet mixing bunker 5 and some control instruments 17.Air inlet distribution portion A is mainly used in: after carrying out voltage stabilizing to the gas of inflow device 100, the flow of the gas of each flowmeter 4 correspondence is regulated again by control instrument 17, carry out gas and vapor permeation at air inlet mixing bunker 5, then enter air preheat copper pipe 6 in case, realize distribution in proportion and air feed.In present embodiment, the gas of inflow can comprise: carbon dioxide, oxygen, nitrogen, is provided accordingly by dioxide bottle, welding bottle, nitrogen cylinder.Pressure maintaining valve 2, tensimeter 3, flowmeter 4 all correspondence arrange 3.
The temperature inside the box control part B comprises air preheat copper pipe 6, thermofin 10, temperature programmed control case 11, well heater 12, fan 13, some temperature sensors 14, some control instruments 17 and some control knobs 18.The temperature inside the box control part B is the industrial control software program according to designed, designed, temperature control method is selected by control knob 18, according to temperature sensor 14, well heater 13 in control program temperature-controlled box 11 and fan 15, and by temperature sensor 14 temperature in control instrument 17 record controls temperature programmed control case 11 and in coal sample, realize distribution, constant temperature, from the operation such as motion tracking or temperature programme.
Gas collecting analysis portion C comprises mixing bunker 9 of giving vent to anger, refrigeratory 16 and gas chromatographicanalyzer 19.Gas collecting analysis portion C is mainly used in the gas discharged in heat transfer coal sample tank 7 or adiabatic coal sample tank 8 directly to pass through air pipe, access refrigeratory 16 cools, be input in gas chromatographicanalyzer 19, automatically complete gas componant by gas chromatographicanalyzer 19 and detect, and record corresponding data.
Data acquisition portion D is then made up of PC (personal computer) 20 and coal sample tank.Concrete, coal sample tank is made up of at least one heat transfer coal sample tank 7 and at least one adiabatic coal sample tank 8.Data acquisition portion D mainly utilizes the program software of designed, designed with PC 20 for platform realization is to the record of the data such as temperature, flow and the pressure in coal spontaneous combustion Cryo Heat Insulation oxidizing process and process.When wanting simulator program temperature-rise period, data acquisition portion D comprises 2 heat transfer coal sample tanks 7, and when simulating adiabatic oxygenation process, data acquisition portion D comprises, and comprises 1 heat transfer coal sample tank, 7,1 adiabatic coal sample tank 8.In other embodiments, kind and the quantity thereof of the coal sample tank that will use can also be selected as required.
Being specifically described as follows of each components and parts/equipment above.
In air inlet distribution portion A: air compressor 1 is used to pressurized air and provides certain pressure gas; Pressure maintaining valve 2 is that the aperture of opening and closing element in application valve body carrys out stabilization of export gaseous tension; Tensimeter 3 is for measuring and showing admission pressure; Flowmeter 4 is for controlling charge flow rate to configure different component gas; Air inlet mixing bunker 5 is that air inlet is fully mixed; Control instrument 17 for showing and the temperature of control program temperature-controlled box 11 and the flow of flowmeter 4, the reading of the temperature and pressure table 3 of display coal sample 15.
In present embodiment, control instrument 17 is also in the temperature inside the box control part B.
In the temperature inside the box control part B: air preheat copper pipe 6 is for making intake air temperature consistent with temperature in temperature programmed control case 11 by gas preheater; Thermofin 10 is mainly used in temperature programmed control case 11 function of heat insulation; Temperature programmed control case 11 is for controlling the intensification in it; Well heater 12 plays air themperature effect in heating schedule temperature-controlled box 11; Fan 13 is heat abstractor, mainly plays the effect of heat throughout in equilibrium code temperature-controlled box 11; Temperature sensor 14 is for the temperature of coal sample 15 in coal sample 15 in process of measurement temperature-controlled box 11 and adiabatic coal sample tank 8 or heat transfer coal sample tank 7; Control knob 18, for when being pressed, producing the operation signal of the starting or stoping of corresponding control machine, temperature programme or adiabatic oxygenation etc., performing steering order corresponding to this operation signal to transfer to opertaing device in corresponding equipment.
In gas collecting analysis portion C: mixing bunker 9 of giving vent to anger makes the gas of discharging from each coal sample tank fully be mixed; Refrigeratory 16 is mainly used in cooling air outlet temperature; Gas chromatograph 19 carries out qualitative and quantitative analysis for producing gas to coal sample 5.
In data acquisition portion D: PC 20 can be the computer equipment such as desk-top computer, notebook computer, the data for device 100 export and control system.Heat transfer coal sample tank 7 is mainly used in taking up coal sample 15 and for the heat conduction between the coal sample 12 in temperature programmed control case 11 and its tank.Adiabatic coal sample tank 8 is mainly used in taking up coal sample 15, and ensures that the heat of coal sample 15 oxidation heat liberation does not scatter and disappear.
In addition, coal sample 15 is test sample.In present embodiment, coal sample 15 is that (during temperature programme, granularity used is 1.25 ~ 1.6mm, 1.6 ~ 2mm, 2 ~ 3.5mm, 3.5 ~ 5mm, 5 ~ 7mm to granular coal; During adiabatic oxygenation, used is the coal particle of 0.180mm particle diameter).
In present embodiment, air preheat copper pipe 6 adopts the fine copper material of diameter 2mm, thickness 0.76mm, general 16m length, carries out preheating, make the temperature in intake air temperature and burner hearth almost completely the same to the gas entering heat transfer coal sample tank 7.
Heat transfer coal sample tank 7 is cylindrical fine copper material, and diameter of coalingging is 7cm, high 10cm, copper is all installed than net in top and two ends, bottom, arranges 1-2 platinum wire temperature probe, and stay the free space establishing about 0.5cm at middle part, be beneficial to coal sample 15 heat evenly, and detect gas componant.
Temperature programmed control case 11 comprises casing and chamber door, and whole casing and chamber door all adopt stainless steel inner container, and the double-layer structural of additional asbestos protective seam, to reach heat insulating effect.Fan 13 in temperature programmed control case 11 casing is used for forcing to carry out convection current to the gas in casing, makes box interior temperature field even.
PC 20 is connected by data line with the controller of temperature programmed control case 11, realizes controlling space environment temperature in temperature programmed control case 11 casing or following the tracks of under the control of the temperature control system of PC 20.
In the present embodiment, it is the Dewar flask thermal insulation form adopting quartz glass material, double-layer structural for the adiabatic coal sample tank 8 of simulating in coal adiabatic oxygenation process, surfaces externally and internally is bright and clean silver-plated to prevent and treat radiation, vacuumizes and prevents gaseous exchange heat exchange, thus effectively can reduce heat transfer in the middle of in tank.Air admission hole is bottom adiabatic coal sample tank 8, and venthole at adiabatic coal sample tank 8 top, and installs the heat that asbestos effectively completely cut off and delay oxidation of coal produces additional at coal sample top, and contributes to uniform air flow, prevents coal from entering gas circuit.PC 20 is connected by data line with the controller of temperature programmed control case 11, thus utilize PC20 machine to accomplish Real-Time Monitoring for the temperature in adiabatic coal sample tank 10, the temperature in adiabatic coal sample tank is recorded once at every certain hour interval automatically.
The following physical simulation implementation process introducing temperature programme simulation process and adiabatic oxygenation simulation process in detail.
1, temperature programme simulation.
In order to solve in experiment table body of heater coal sample in different temperatures, to the real-time change visual Simulation test problems of coal body internal temperature field and concentration field under the different condition such as amount of oxygen and different air humiditys, a kind of coal intensification of designed, designed simulation system, this system utilizes programmed temperature chromatography, namely the program that arranges according to component boiling point of the temperature of chromatographic column continuously linearly over time or non-linear gradual rising, make column temperature mutually corresponding with the boiling point of component, suitable reservation is had in the chromatography column to make low boiling component and high boiling component, chromatographic peak is evenly distributed and peak shape is symmetrical, relevant temperature and the retention temperature of the retention using chromatographic peak highest point of each component represent, and then the detection completed coal body internal temperature field and concentration field under different condition.
This intensification simulation system mainly comprises above-mentioned air inlet distribution portion A, the temperature inside the box control part B, gas collecting analysis portion C and data acquisition portion D.Wherein, data acquisition portion D includes 2 heat transfer coal sample tanks 7.
(1) coal sample is dry.By in figure in 2 adiabatic coal sample tank 8 be replaced by heat transfer coal 7, the coal sample that fragmentation is good is loaded 2 heat transfer coal sample tanks 7, connects draft tube, open nitrogen gas cylinder, by air inlet distribution portion A, nitrogen is linked in heat transfer coal sample tank 7 by gas.To be pressed switch to open temperature programmed control case 11 by " startup " on control knob 18, press " temperature programmed control " button, be switched to temperature programmed control pattern.Manual unlocking PC 20, by the control of the temperature programme software simulating temperature programmed control case 11 on it and medium intake.Utilize the control of cooperating realization to coal sample dry run programmed rate of PC 20, well heater 12 and fan 13, and to be brought into operation whole intensification simulation system by the temperature programme software on PC 20, in a preset time period, complete the drying to coal sample.
(2) temperature programme.Close nitrogen cylinder switch, start air compressor 1, through pressure maintaining valve 2, tensimeter 3, flowmeter 4 is set by the temperature inside the box control part A, then be linked into pre-heating pipe 6 after air inlet mixing bunker 5 fully mixing, enter in heat transfer coal sample tank 7.In present embodiment, be utilize the temperature programme software simulating installed to the control of air intake by PC 20.Utilize the cooperating of PC 20, well heater 12 and fan 13 to realize control to the programmed rate of coal sample Temperature Programmed Processes, and to be brought into operation whole temperature programme system by the temperature programme software on PC 20.
(3) gas collecting.By the control of software on PC 20, the gas of the coal sample in heat transfer coal sample tank 9 being discharged in the different temperatures stage collects in gas chromatographicanalyzer 19 through mixing bunker 9 of giving vent to anger and analyzes, and by the automatic record analysis the data obtained of gas chromatographicanalyzer 19.
(4) simulation stops.After completing coal sample temperature programme, by " stopping " button bolt down procedure temperature-controlled box 11 on supervisory keyboard 18, then close air compressor 1, gas chromatographicanalyzer 19 and PC 20, this temperature programme simulator program stops.
2, adiabatic oxygenation simulation.
In order to solve the large type simulated spontaneous combustion experiment of current appearance and use because test process is long, the not high coal generation heat that causes of degree of insulation scatters and disappears to environment in various degree, cause testing the problem that gained temperature rise curve can not represent the ignition quality of coal very well, the present invention adopts the little coal sample adiabatic oxygenation method spontaneous combustion of simulated coal process of designed, designed, the test duration generally a few hours by tens of hours between.While not making heat scatter and disappear in coal sample tank, this simulation system also ensure that environment does not heat to coal sample as far as possible.
This adiabatic oxygenation simulation system mainly comprises above-mentioned air inlet distribution portion A, the temperature inside the box control part B, gas collecting analysis portion C, data acquisition portion D.Wherein, data acquisition portion D includes 1 heat transfer coal sample tank 7 and 1 adiabatic coal sample tank 8.
(1) coal sample is dry.Only retain 1 heat transfer coal sample tank 7 in temperature programme case, and load coal sample 15, the dry simulation process of its coal sample 15 is identical with the coal sample dry run that temperature programme is simulated, and just repeats no more at this.
(2) adiabatic oxygenation.Close nitrogen cylinder switch, the coal sample of carrying out above-mentioned drying process in heat transfer coal sample tank 7 is replaced in adiabatic coal sample tank 8, draft tube is connected to adiabatic coal sample tank 8.Open welding bottle, through pressure maintaining valve 2, tensimeter 3, flowmeter 4 is set by the temperature inside the box control part B, then be linked into pre-heating pipe 6 after air inlet mixing bunker 5 fully mixing, enter in adiabatic coal sample tank 8.Same, by the temperature programme software simulating on PC 20 to the control of air intake." adiabatic oxygenation " button of upspringing on control knob 18, is switched to temperature automatic tracing pattern.Open temp autotrace the whole adiabatic oxygenation simulation process that brings into operation in temperature programme software on PC 20.
(3) data acquisition.By the temperature automatic tracing of temperature programmed control software on PC 20, realize the Real-Time Monitoring to the temperature in adiabatic coal sample tank 8, automatically record once the temperature in adiabatic coal sample tank 8 every a prefixed time interval.Finally derive experimental data.
(4) simulation stops.After completing the coal sample adiabatic oxygenation simulation process in adiabatic coal sample tank 8, by " stopping " button bolt down procedure temperature-controlled box 11 on control knob 18, then close welding bottle switch and PC 20, this adiabatic oxygenation simulator program stops.
The device 100 of simulation coal of the present invention temperature programme and adiabatic oxygenation, include can be shared by its heat up simulation system and adiabatic oxygenation simulation system air inlet distribution portion A, the temperature inside the box control part B, gas collecting analysis portion C, data acquisition portion D.Realize multiple use by set of device, control inlet gas flow by computer program, thus realize multiple gases mixing, integrate coal spontaneous combustion temperature programme and simulation coal adiabatic oxygenation two kinds of functions.Automatically temperature programme simulation process and adiabatic oxygenation simulation process under gas with various component can be completed in unattended duty situation.
This device 100 utilizes PC 20 and is arranged on the control software design of PC, gather the temperature of the coal sample 15 in each coal sample tank, the control temperature of setting temperature control instrument, make to enter gas flow temperature in Dewar flask consistent with coal temperature, and then realize the effect of adiabatic oxygenation, the thermal insulation automatically controlling coal sample 15 low temperature oxidization process can be realized, and the change law of gas of record coal sample 15 low temperature spontaneous combustion automatically and temperature changing regularity, conveniently draw coal sample 15 Spontaneous Combustion Indication Gas and the spontaneous combustion tendency of coal sampling 15 based on adiabatic oxygenation simulation process.
And, set each gas inlet flow by the air intake opening at temperature programmed control case 11 according to programmed control, realize multiple gases and quantitatively mix; And automatically recording the data such as temperature and flow, the simulation process of implement device 100 controls automatically.Thus, effectively can not only control the cost that multiple gases quantitatively mixes, ensures the good leakproofness of gas circuit, reduces simulation process.Meanwhile, the manual operation in simulation process can also be simplified, reduce the human error in simulation process, improve degree of accuracy and the efficiency of simulation.
Those skilled in the art will be appreciated that; above embodiment is only used to the present invention is described; and be not used as limitation of the invention; as long as within spirit of the present invention, the suitable change do above embodiment and change all drop within the scope of protection of present invention.

Claims (11)

1. simulate a device for coal intensification and adiabatic oxygenation, it is characterized in that, comprising:
Air inlet distribution portion, for automatically controlling the flow of the gas flowing into described device and mixing the gas flowing into described device, comprising: an air compressor, multiple pressure maintaining valve, multiple tensimeter, multiple flowmeter, an air inlet mixing bunker and multiple control instrument;
The temperature inside the box control part, comprises a temperature programmed control case, and described the temperature inside the box control part is used for, according to the control mode selected by a control knob, utilizing industrial control software program, being controlled and record the temperature in described temperature programmed control case by described multiple control instrument;
Gas collecting analysis portion, for automatically gathering, detect and recording the gas componant after intensification and/or adiabatic oxygenation process, comprising: mixing bunker of giving vent to anger, refrigeratory and gas chromatographicanalyzer; And
Data acquisition portion, comprise PC and at least one coal sample tank, for utilizing described PC automatically to record the temperature of the coal sample in described at least one coal sample tank, flow and pressure data, wherein, described at least one coal sample tank comprise following in one or more: heat transfer coal sample tank and adiabatic coal sample tank.
2. device as claimed in claim 1, is characterized in that: described the temperature inside the box control part also comprises:
Air preheat copper pipe, consistent with the temperature in described temperature programmed control case to intake air temperature for the gas preheater that will flow into described device;
Well heater, for heating the air themperature in described temperature programmed control case;
Multiple temperature sensor, is arranged in described temperature programmed control case, described adiabatic coal sample tank and in described heat transfer coal sample tank, for sensing the temperature of the coal sample in described temperature programmed control case, described adiabatic coal sample tank and the coal sample in described heat transfer coal sample tank respectively respectively.
3. device as claimed in claim 1, it is characterized in that: the gas discharged in described heat transfer coal sample tank fully mixes by mixing bunker of giving vent to anger described in described gas collecting portion utilizes, utilize described refrigeratory cool through described in give vent to anger the mixed gas of mixing bunker, be input in described gas chromatographicanalyzer by air pipe again, complete gas componant by described gas chromatographicanalyzer to detect, and record detects data accordingly.
4. the device as described in claim 1 or 2 or 3, is characterized in that: described air preheat copper pipe is fine copper material, and for carrying out preheating to the gas entering described heat transfer coal sample tank, and it is identical with the temperature in the burner hearth of described heat transfer coal sample tank to control intake air temperature.
5. the device as described in claim 1 or 2 or 3, is characterized in that: described heat transfer coal sample tank is the cylindrical tank of fine copper material, and copper is all installed than net in top and two ends, bottom, and middle part is provided with one or two platinum wire temperature probe.
6. the device as described in claim 1 or 2 or 3, is characterized in that: described adiabatic coal sample tank adopts the Dewar flask of quartz glass material, double-layer structural, and surfaces externally and internally is silver-plated, is vacuum in tank.
7. the device as described in claim 1 or 2 or 3, is characterized in that: described temperature programmed control case adopts stainless steel inner container, the double-layer structural of additional asbestos protective seam.
8. the device as described in claim 1 or 2 or 3, is characterized in that: described the temperature inside the box control part also comprises a thermofin and a fan.
9. simulate coal to heat up and the device of adiabatic oxygenation, it is characterized in that: comprise by intensification simulation system and adiabatic oxygenation simulation system share as lower device:
Air inlet distribution portion, for automatically controlling the flow of the gas flowing into described device and mixing the gas flowing into described device;
The temperature inside the box control part, for according to the control mode selected by a control knob, is utilized industrial control software program, is controlled and record the temperature in a temperature programmed control case by described multiple control instrument;
Gas collecting analysis portion, for automatically gathering, detect and recording the gas componant after intensification and/or adiabatic oxygenation process; And data acquisition portion, for utilizing a PC automatically to record the temperature of the coal sample at least one coal sample tank, flow and pressure data, wherein, described at least one coal sample tank comprise following in one or more: heat transfer coal sample tank and adiabatic coal sample tank.
10. device as claimed in claim 8, is characterized in that:
Described air inlet distribution portion comprises: an air compressor, multiple pressure maintaining valve, multiple tensimeter, multiple flowmeter, an air inlet mixing bunker and multiple control instrument;
Described the temperature inside the box control part comprises: air preheat copper pipe, well heater, multiple temperature sensor, a thermofin and a fan;
Described gas collecting analysis portion comprises: mixing bunker of giving vent to anger, refrigeratory and gas chromatographicanalyzer; And described data acquisition portion comprises: PC and at least one coal sample tank.
11. devices as claimed in claim 9, is characterized in that:
The gas preheater that described air preheat copper pipe is used for flowing into described device is consistent with the temperature in described temperature programmed control case to intake air temperature;
Described well heater is for heating the air themperature in described temperature programmed control case;
Described multiple temperature sensor, be arranged in described temperature programmed control case, described adiabatic coal sample tank and in described heat transfer coal sample tank respectively, for sensing the temperature of the coal sample in described temperature programmed control case, described adiabatic coal sample tank and the coal sample in described heat transfer coal sample tank respectively;
The gas discharged in described heat transfer coal sample tank fully mixes by mixing bunker of giving vent to anger described in described gas collecting portion utilizes, utilize described refrigeratory cool through described in give vent to anger the mixed gas of mixing bunker, be input in described gas chromatographicanalyzer by air pipe again, complete gas componant by described gas chromatographicanalyzer to detect, and record detects data accordingly.
CN201410674101.7A 2014-11-21 2014-11-21 Device for simulating programmed temperature rising and adiabatic oxidation of coal Pending CN104483350A (en)

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