CN204228645U - Coal seam with gas ignition quality program ascend temperature platform under dwell condition - Google Patents
Coal seam with gas ignition quality program ascend temperature platform under dwell condition Download PDFInfo
- Publication number
- CN204228645U CN204228645U CN201420753848.7U CN201420753848U CN204228645U CN 204228645 U CN204228645 U CN 204228645U CN 201420753848 U CN201420753848 U CN 201420753848U CN 204228645 U CN204228645 U CN 204228645U
- Authority
- CN
- China
- Prior art keywords
- gas
- pressure
- copper pipe
- valve
- coal sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model embodiment provides coal seam with gas ignition quality program ascend temperature platform under a kind of dwell condition, relates to disaster field, colliery, can realize the quantitative test of gas bearing capacity to coal spontaneous combustion properties influence.Described experiment table comprises: gas compressor (1); 5 needle-valves; 2 gas-holder; 3 tensimeters; Vacuum meter (7); Vacuum pump (8); Gas meter (9); Can pressure-bearing coal sample tank (10); Copper mesh (11); Temperature measuring gauge (12); Pressure transducer (13); Computing machine (14); 2 safety valve; Methane tank (19); Reduction valve (21); Gas chromatograph (24); Constant temperature oven (25).
Description
Technical field
The utility model relates to disaster field, colliery, particularly relates to coal seam with gas ignition quality program ascend temperature platform under a kind of dwell condition.
Background technology
Colliery enters deep mining, gas and coal spontaneous combustion disaster more serious, for realizing the dual control of gas and coal spontaneous combustion disaster, ensure downhole safety High-efficient Production, the affecting laws of gas bearing capacity to coal spontaneous combustion characteristic need be probed into, but because coal sample is after a certain pressure is issued to adsorption equilibrium, when carrying out spontaneous combustion program ascend temperature, owing to being filled with the pressure of nitrogen and air close to normal pressure, because pressure reduces, coal containing methane gas sample generation desorb, therefore cannot carry out the quantitative examination of gas bearing capacity to coal spontaneous combustion characteristic to coal seam with gas.
Utility model content
Embodiment of the present utility model provides coal seam with gas ignition quality program ascend temperature platform under a kind of dwell condition, can realize the quantitative test of gas bearing capacity to coal spontaneous combustion properties influence.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
Coal seam with gas ignition quality program ascend temperature platform under a kind of dwell condition, comprising:
Gas compressor (1), gas compressor (1) is connected by the import of copper pipe with the first gas-holder (3), the copper pipe between gas compressor (1) and the first gas-holder (3) is provided with the first needle-valve (2);
The copper pipe be connected with the outlet of described first gas-holder (3) is provided with the first tensimeter (4) and the second needle-valve (5), described copper pipe bifurcated after described second needle-valve (5) is No. 2 copper pipes, No. one copper pipe is connected with vacuum pump (8), and this road copper pipe is provided with the 3rd needle-valve (6) and vacuum meter (7); Another road copper pipe with can be connected by pressure-bearing coal sample tank (10), this another road copper pipe is provided with gas meter (9);
Describedly can be positioned at constant temperature oven (25) by pressure-bearing coal sample tank (10), in its tank, two ends are respectively provided with a copper mesh (11), describedly pressure-bearing coal sample tank (10) can also be connected with the second tensimeter (16), in order to monitor the pressure in tank; Described constant temperature oven (25) connects a temperature measuring gauge (12) outward, for monitoring the temperature in constant temperature oven (25);
Describedly can be connected with computing machine (14) by pressure transducer (13) by pressure-bearing coal sample tank (10), can be connected with methane tank (19) by pressure-bearing coal sample tank (10) simultaneously, describedly can be provided with the first safety valve (15) by copper pipe between pressure-bearing coal sample tank (10) and methane tank (19), 4th needle-valve (17), 3rd tensimeter (18), can be also connected by copper pipe one end with the second gas-holder (22) by pressure-bearing coal sample tank (10) in addition, the second safety valve (20) and reduction valve (21) can be provided with by copper pipe between pressure-bearing coal sample tank (10) and the second gas-holder (22),
The other end of described second gas-holder (22) is connected with gas chromatograph phase (24), and described second gas-holder (22) is provided with the 5th needle-valve (23) with the copper pipe between gas chromatograph phase (24).
Coal seam with gas ignition quality program ascend temperature platform under the dwell condition that technique scheme provides, same coal sample can be realized after different gas pressure adsorption equilibrium, carry out spontaneous combustion program ascend temperature, according to the equalized pressure that adsorption experiment computer-chronograph gathers, gas adsorption amount under using Langmuir mono molecule layer adsorption quantitatively to determine a certain adsorption equilibrium pressure, simultaneously coal sample is under pressure P after adsorption equilibrium, the N2 passed into is made by the outlet gas pressure of adjustments of gas compressor, the pressure of air reaches adsorption equilibrium pressure P, uninterrupted injecting gas, ensure the constant pressure in tank body, and use tensimeter real-time pressure to monitor, when constant pressure is constant, coal seam with gas because of pressure change, can ignore by the gas amount of desorb, eliminate due to pressure changing factor, gas chromatograph is finally utilized to carry out gas componant quantitative test to the gas in gas-holder, achieve the quantitative test of gas bearing capacity to coal spontaneous combustion properties influence.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of coal seam with gas ignition quality program ascend temperature platform under a kind of dwell condition that Fig. 1 provides for the utility model embodiment.
Reference numeral:
1-gas compressor, 2-first needle-valve, 3-gas-holder, 4-first tensimeter, 5-second needle-valve, 6-the 3rd needle-valve, 7-vacuum meter, 8-vacuum pump, 9-gas meter, 10-can pressure-bearing coal sample tank, 11-copper mesh, 12-temperature measuring gauge, 13-pressure transducer, 14-computing machine, 15-first safety valve, 16-second tensimeter, 17-the 4th needle-valve, 18-the 3rd tensimeter, 19-methane tank, 20-second safety valve, 21-reduction valve, 22-gas-holder, 23-the 5th needle-valve, 24-gas chromatograph phase, 25-constant temperature oven.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment provides coal seam with gas ignition quality program ascend temperature platform under a kind of dwell condition, as shown in Figure 1, described device comprises: gas compressor (1), gas compressor (1) is connected by the import of copper pipe with the first gas-holder (3), the copper pipe between gas compressor (1) and the first gas-holder (3) is provided with the first needle-valve (2).
The copper pipe be connected with the outlet of described first gas-holder (3) is provided with the first tensimeter (4) and the second needle-valve (5), described copper pipe bifurcated after described second needle-valve (5) is No. 2 copper pipes, No. one copper pipe is connected with vacuum pump (8), and this road copper pipe is provided with the 3rd needle-valve (6) and vacuum meter (7); Another road copper pipe with can be connected by pressure-bearing coal sample tank (10), this another road copper pipe is provided with gas meter (9).
Describedly can be positioned at constant temperature oven (25) by pressure-bearing coal sample tank (10), in its tank, two ends are respectively provided with a copper mesh (11), describedly pressure-bearing coal sample tank (10) can also be connected with the second tensimeter (16), in order to monitor the pressure in tank; Described constant temperature oven (25) connects a temperature measuring gauge (12) outward, for monitoring the temperature in constant temperature oven (25).
Describedly can be connected with computing machine (14) by pressure transducer (13) by pressure-bearing coal sample tank (10), can be connected with methane tank (19) by pressure-bearing coal sample tank (10) simultaneously, describedly can be provided with the first safety valve (15) by copper pipe between pressure-bearing coal sample tank (10) and methane tank (19), 4th needle-valve (17), 3rd tensimeter (18), can be also connected by copper pipe one end with the second gas-holder (22) by pressure-bearing coal sample tank (10) in addition, the second safety valve (20) and reduction valve (21) can be provided with by copper pipe between pressure-bearing coal sample tank (10) and the second gas-holder (22).
The other end of described second gas-holder (22) is connected with gas chromatograph phase (24), and described second gas-holder (22) is provided with the 5th needle-valve (23) with the copper pipe between gas chromatograph phase (24).
When the said apparatus that application the utility model provides is tested, the coal sample of required for experiment particle diameter is loaded can in pressure-bearing coal sample tank (10), after checking impermeability, close the second needle-valve (5), the first safety valve (15), the second safety valve (20), open the 3rd needle-valve (6), carry out degassed to coal sample in tank, vacuum pump (8) is used to be no less than 6 hours to coal sample is degassed, the pressure of the upper display of vacuum meter (7) lower than 4Pa, should ensure that the survival gas of coal sample inside is discharged completely, close the 3rd needle-valve (6), open the first safety valve (15), 4th needle-valve (17), methane tank (19) is to the gas that can be filled with certain pressure in pressure-bearing coal sample tank (10), force value in 3rd tensimeter (18) display methane tank (19), computing machine (14) can the pressure of Real-Time Monitoring coal sample tank internal gas by pressure transducer (13), treat that coal sample reaches adsorption equilibrium, the equilibrium pressure force value of computing machine (14) automated collection systems display, and close the first safety valve (15), 4th needle-valve (17), remove methane tank (19), then to carrying out pyrophorisity program ascend temperature by the coal containing methane gas in pressure-bearing coal sample tank (10), coal sample is loaded on the copper mesh (11) in coal sample tank (3), open the first needle-valve (2), second needle-valve (5), second safety valve (20), the gas outlet pressure of adjustments of gas compressor (1), the coal sample gas adsorption equalized pressure making pressure reach computing machine (14) to record, at injection 1 hour N
2after start to be pressed into fresh air, gas enters coal sample tank through the first gas-holder (3) buffer action, tensimeter (4) can show the gaseous tension in the first gas-holder (3), gas meter (9) display enters can the gas flow of pressure-bearing coal sample tank (10), constant temperature oven (25) controls can the temperature of pressure-bearing coal sample tank (10), gaseous tension in second tensimeter (16) Real-Time Monitoring coal sample tank, the second gas-holder (22) can be flowed into by the interior gases at high pressure flowed out of pressure-bearing coal sample tank (10) after reduction valve (21) step-down, open the 5th needle-valve (23), the gas componant detected in the second gas-holder (22) by gas chromatograph phase (24) is analyzed, thus complete the whole process of experiment.
This instrument can realize same coal sample and carry out spontaneous combustion program ascend temperature after different gas pressure adsorption equilibrium, according to the equalized pressure that adsorption experiment computer-chronograph gathers, gas adsorption amount under using Langmuir mono molecule layer adsorption quantitatively to determine a certain adsorption equilibrium pressure, coal sample after adsorption equilibrium, makes the N passed under pressure P by the outlet gas pressure of adjustments of gas compressor simultaneously
2, air pressure reach adsorption equilibrium pressure P, uninterrupted injecting gas, ensure the constant pressure in tank body, and use tensimeter real-time pressure to monitor, when constant pressure is constant, coal seam with gas because of pressure change, can ignore by the gas amount of desorb, eliminates due to pressure changing factor, finally utilize gas chromatograph to carry out gas composition analysis to the gas in gas-holder, achieve the quantitative test of gas bearing capacity to coal spontaneous combustion properties influence.
The above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (1)
1. a coal seam with gas ignition quality program ascend temperature platform under dwell condition, is characterized in that, comprising:
Gas compressor (1), gas compressor (1) is connected by the import of copper pipe with the first gas-holder (3), the copper pipe between gas compressor (1) and the first gas-holder (3) is provided with the first needle-valve (2);
The copper pipe be connected with the outlet of described first gas-holder (3) is provided with the first tensimeter (4) and the second needle-valve (5), described copper pipe bifurcated after described second needle-valve (5) is No. 2 copper pipes, No. one copper pipe is connected with vacuum pump (8), and this road copper pipe is provided with the 3rd needle-valve (6) and vacuum meter (7); Another road copper pipe with can be connected by pressure-bearing coal sample tank (10), this another road copper pipe is provided with gas meter (9);
Describedly can be positioned at constant temperature oven (25) by pressure-bearing coal sample tank (10), in its tank, two ends are respectively provided with a copper mesh (11), describedly pressure-bearing coal sample tank (10) can also be connected with the second tensimeter (16), in order to monitor the pressure in tank; Described constant temperature oven (25) connects a temperature measuring gauge (12) outward, for monitoring the temperature in constant temperature oven (25);
Describedly can be connected with computing machine (14) by pressure transducer (13) by pressure-bearing coal sample tank (10), can be connected with methane tank (19) by pressure-bearing coal sample tank (10) simultaneously, describedly can be provided with the first safety valve (15) by copper pipe between pressure-bearing coal sample tank (10) and methane tank (19), 4th needle-valve (17), 3rd tensimeter (18), can be also connected by copper pipe one end with the second gas-holder (22) by pressure-bearing coal sample tank (10) in addition, the second safety valve (20) and reduction valve (21) can be provided with by copper pipe between pressure-bearing coal sample tank (10) and the second gas-holder (22),
The other end of described second gas-holder (22) is connected with gas chromatograph phase (24), and described second gas-holder (22) is provided with the 5th needle-valve (23) with the copper pipe between gas chromatograph phase (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420753848.7U CN204228645U (en) | 2014-11-26 | 2014-11-26 | Coal seam with gas ignition quality program ascend temperature platform under dwell condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420753848.7U CN204228645U (en) | 2014-11-26 | 2014-11-26 | Coal seam with gas ignition quality program ascend temperature platform under dwell condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204228645U true CN204228645U (en) | 2015-03-25 |
Family
ID=52926725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420753848.7U Expired - Fee Related CN204228645U (en) | 2014-11-26 | 2014-11-26 | Coal seam with gas ignition quality program ascend temperature platform under dwell condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204228645U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897723A (en) * | 2015-06-19 | 2015-09-09 | 西安科技大学 | Experiment device for spontaneous combustion characteristic test during coal rock creep process |
| CN104977373A (en) * | 2015-06-28 | 2015-10-14 | 西安科技大学 | Experiment device for testing coal spontaneous combustion characteristics under rock burst simulated environment |
| CN105259091A (en) * | 2015-11-10 | 2016-01-20 | 河南理工大学 | Pressure-bearing broken residual coal permeability evolution and spontaneous combustion characteristic testing device |
| CN105806890A (en) * | 2016-03-26 | 2016-07-27 | 河南理工大学 | Coal spontaneous combustion characteristic parameter measuring device based on load pressurizing mode |
| CN106404589A (en) * | 2016-09-22 | 2017-02-15 | 安徽理工大学 | Coal oxidation characteristic testing device based on coal and gas cogeneration and testing method thereof |
| CN110749683A (en) * | 2019-11-04 | 2020-02-04 | 中国矿业大学 | Device and method for testing spontaneous combustion characteristics of gas-containing loaded coal |
| CN111175470A (en) * | 2020-03-09 | 2020-05-19 | 山东科技大学 | Test method for simulating spontaneous combustion and instability of coal body under true triaxial stress |
-
2014
- 2014-11-26 CN CN201420753848.7U patent/CN204228645U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897723A (en) * | 2015-06-19 | 2015-09-09 | 西安科技大学 | Experiment device for spontaneous combustion characteristic test during coal rock creep process |
| CN104977373A (en) * | 2015-06-28 | 2015-10-14 | 西安科技大学 | Experiment device for testing coal spontaneous combustion characteristics under rock burst simulated environment |
| CN105259091A (en) * | 2015-11-10 | 2016-01-20 | 河南理工大学 | Pressure-bearing broken residual coal permeability evolution and spontaneous combustion characteristic testing device |
| CN105259091B (en) * | 2015-11-10 | 2018-05-15 | 河南理工大学 | Pressure-bearing, which crushes, loses coal permeability evolution and ignition quality test device |
| CN105806890A (en) * | 2016-03-26 | 2016-07-27 | 河南理工大学 | Coal spontaneous combustion characteristic parameter measuring device based on load pressurizing mode |
| CN105806890B (en) * | 2016-03-26 | 2018-05-04 | 河南理工大学 | Characteristic Parameters of Coal Spontaneous Combustion measurement device based on load pressuring method |
| CN106404589A (en) * | 2016-09-22 | 2017-02-15 | 安徽理工大学 | Coal oxidation characteristic testing device based on coal and gas cogeneration and testing method thereof |
| CN110749683A (en) * | 2019-11-04 | 2020-02-04 | 中国矿业大学 | Device and method for testing spontaneous combustion characteristics of gas-containing loaded coal |
| CN111175470A (en) * | 2020-03-09 | 2020-05-19 | 山东科技大学 | Test method for simulating spontaneous combustion and instability of coal body under true triaxial stress |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204228645U (en) | Coal seam with gas ignition quality program ascend temperature platform under dwell condition | |
| CN104849300A (en) | Experiment table for researching influences of coal body gas content to coal spontaneous combustion characteristics and application method of experiment table | |
| CN203949905U (en) | The gas adsorption of coal and pyrophorisity temperature programme integrated experimental device | |
| CN108279182B (en) | Gas adsorbent evaluation device | |
| CN205138940U (en) | Test coal body gas adsorbs desorption heat effect experimental system | |
| CN201110847Y (en) | Adsorbing agent voltage transformation adsorptive separation performance test and infiltration flow experimental device | |
| CN207148052U (en) | A kind of experimental provision of dynamic and static two methods detection adsorbent absorption property | |
| CN202628051U (en) | Physical simulation device for substitution of coal bed methane by carbon dioxide | |
| CN105628811A (en) | Testing device for competitive adsorption of supercritical CO2 and CH4 in shale and testing method of device | |
| CN104897525A (en) | Diffusion coefficient and isothermal adsorption/desorption curve test system and method | |
| CN102944666A (en) | Shale gas reservoir recovery simulation experimental device | |
| CN202471559U (en) | Coal adsorption mixed gas experiment table | |
| CN101923098A (en) | Continuous on-line analysis device of benzene, total hydrocarbons, methane and CO in carbon dioxide | |
| CN103994960A (en) | Coal/shale isothermal adsorption experiment method | |
| CN105136922A (en) | Adsorbent performance dynamic detection device | |
| CN104819910A (en) | Experimental device and method for measuring amount of gas adsorbed by large quantity of coal samples under condition of normal pressure | |
| CN101839841B (en) | Adsorption/desorption experimental apparatus and method for gas in rock pore | |
| CN104713899A (en) | Coal spontaneous combustion tendency identification method based on double-oxygen uptake | |
| CN105973712A (en) | Acoustic emission testing device used in gassy coal rock fracturing process | |
| Wang et al. | Seepage law and permeability calculation of coal gas based on Klinkenberg effect | |
| CN109470834A (en) | Coal petrography adsorption-desorption deformation Visualizing Test System and test method under water and gas collective effect | |
| CN208239396U (en) | Pressure swing adsorption separation CH4/N2Performance evaluation device for adsorbent for mixed gas | |
| CN205353065U (en) | Detect marsh gas gas composition's integrated online analysis device simultaneously | |
| CN112903519B (en) | Rapid measuring system and method for desorbable amount of coal bed gas | |
| CN205333483U (en) | Gas permeability test system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20151126 |