CN205593876U - Coal column gas adsorbs many parameter testing of desorption system - Google Patents
Coal column gas adsorbs many parameter testing of desorption system Download PDFInfo
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- CN205593876U CN205593876U CN201620410760.4U CN201620410760U CN205593876U CN 205593876 U CN205593876 U CN 205593876U CN 201620410760 U CN201620410760 U CN 201620410760U CN 205593876 U CN205593876 U CN 205593876U
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Abstract
The utility model relates to a coal sample gas adsorption and desorption experiment system, concretely relates to are applicable to for one kind studies a coal column gas adsorbs many parameter testing of desorption system, including supplying gas appliance, negative pressure drainage device, adsorption equipment, desorption gas gathering system, supplying helium device, pressure measurement system, stress monitoring system and temperature monitoring system. Supply gas appliance, supply to connect in parallel between helium device, negative pressure drainage device, the adsorption equipment, adsorption equipment passes through pipeline and desorption gas gathering system intercommunication. Adsorption equipment includes sample can and reference jar, and sample can and reference jar all are arranged in the constant temperature water tank. The bottom of sample can is equipped with the coal column support, is equipped with the test coal column on the coal column support. The utility model discloses a test system can adsorb desorption in -process temperature variation and continuous accurate measurement is carried out to the variation of stresses to coal sample gas in the pit, avoids the tradition to utilize powder coal body experiment's drawback.
Description
Technical field
This utility model relates to a kind of coal sample gas adsorption desorption experiment system, is specifically related to one and is applicable to study coal column gas adsorption desorbing Multi parameters Test Macro.
Background technology
Coal and gas prominent process is extremely complex, does not the most propose unified prominent mechanism.Research coal body desorption of mash gas Diffusion Law, has critically important realistic meaning for Coal and Gas Outbursts Prediction, Gas Content Prediction in Coal Seam etc..Research shows: in coal seam, affect desorption of mash gas diffusion because have a lot: the molecular structure of coal, coal body internal void feature, coal and the physicochemical properties etc. of methane gas；Macroscopically there is original gas bearing capacity, adsorption equilibrium pressure etc. in coal sample size, the Failure type of coal, coal body.Coal body is in gas adsorption and desorption process, and the temperature of coal body and stress state can change.In recent years, coal gas desorption process rule is studied by many researcheres, and design coal body adsorption-desorption process heat effect experiment test device, but there is following defect: in the past during test coal gas adsorption-desorption heat effect, it is all that the coal sample that down-hole gathers is processed into coal dust, carry out the adsorption-desorption test of coal dust the most again, and record relevant experimental data.There is bigger difference in the so test of coal dust and down-hole coal body gas adsorption desorbing under initial condition, therefore testing the data recorded has bigger error with down-hole coal body gas adsorption desorbing situation；In addition in conventional coal dust gas adsorption desorption process, also the STRESS VARIATION of coal body in the coal body gas adsorption desorption process of down-hole cannot be recorded, therefore, it is necessary to design temperature and the test system of STRESS VARIATION in the coal body gas adsorption desorption process of a kind of energy true simulation test down-hole.
Summary of the invention
For solving above-mentioned technical problem, this utility model provides a kind of coal column gas adsorption desorbing Multi parameters Test Macro, can carry out variations in temperature and STRESS VARIATION in the coal sample gas adsorption desorption process of down-hole the most accurately measuring, avoid tradition to utilize coal dust to carry out the drawback tested, provide experiment basis for the temperature in research coal column gas adsorption desorption process comprehensively and STRESS VARIATION.
This utility model is realized by following technical proposals:
A kind of coal column gas adsorption desorbing Multi parameters Test Macro, including supplying gas device, negative pressure drainage device, adsorbent equipment, desorbing gas gathering system, supplying helium device and pressure measuring system.For gas device, in parallel between helium device, negative pressure drainage device, adsorbent equipment, adsorbent equipment is connected with desorbing gas gathering system by pipeline.Adsorbent equipment includes that sample and reference can, sample jar and reference can are respectively positioned in thermostatic water tank.Pressure measuring system includes two pressure transducers being positioned on the air inlet of sample jar, reference can；Pressure transducer is connected with control station by wire.The bottom of sample jar is provided with coal column support, and coal column support is provided with test coal column.Coal column gas adsorption desorbing Multi parameters Test Macro also includes stress monitoring system and temperature monitoring system；Stress monitoring system includes that at least one is positioned at the strain-ga(u)ge transducer of coal column side surface；Temperature monitoring system includes the infrared temperature sensor being positioned on sample jar inwall；Strain-ga(u)ge transducer and infrared temperature sensor are connected in series with data collecting instrument and computer by data wire.
Further, above-mentioned sample jar includes tank body and cover；Tank body and cover Flange joint.
Further, at least one " O " RunddichtringO it is provided with between above-mentioned tank body and cover.
Further, the inwall of above-mentioned tank body and the bottom of cover are equipped with heat ray filter.
Further, above-mentioned cover is provided with hollow bolt；The data wire of strain-ga(u)ge transducer and infrared temperature sensor is connected in series with data collecting instrument and computer by hollow bolt.
Further, above-mentioned hollow bolt is by silicone rubber seal.
The different coal samples that down-hole can directly be gathered by test system of the present utility model carry out gas adsorption desorption experiment under different gas pressures, analyse in depth coal sample gas adsorption desorbing Diffusion Law, can carry out framework deformation, variations in temperature and STRESS VARIATION in the coal sample gas adsorption desorption process of down-hole the most accurately measuring, tradition is avoided to utilize coal dust to carry out the drawback tested, experiment basis is provided for the temperature in research coal column gas adsorption desorption process and STRESS VARIATION, significant for research coal seam gas outburst prevention treatment.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of this utility model a kind of coal column gas adsorption desorbing Multi parameters Test Macro；
Accompanying drawing 2 is the structural representation of sample jar in this utility model；
In figure: 1-is for gas device；2-negative pressure drainage device；3-desorbing gas gathering system；4-sample jar；40-tank body；41-cover；42-heat ray filter；43-hollow bolt；44-air inlet；46-sealing ring；47-coal column support；48-coal column；49-reference can；5-is for helium device；61-strain-ga(u)ge transducer；62-infrared temperature sensor；63-data collecting instrument；64-computer；65-pressure transducer；66-control station.
Detailed description of the invention
With specific embodiment, this utility model is further described below in conjunction with the accompanying drawings, in order to those skilled in the art understand this utility model.
A kind of coal column gas adsorption desorbing Multi parameters Test Macro, including supplying gas device 1, negative pressure drainage device 2, adsorbent equipment, desorbing gas gathering system 3, supplying helium device 5 and pressure measuring system.For gas device 1, in parallel between helium device 5, negative pressure drainage device 2, adsorbent equipment；Adsorbent equipment is connected with desorbing gas gathering system 3 by pipeline.Adsorbent equipment includes that sample jar 4 and reference can 49, sample jar 40 and reference can 49 are respectively positioned in thermostatic water tank 7.Pressure measuring system includes two pressure transducers 65 being positioned on the air inlet 44 of sample jar 4, reference can 49；Pressure transducer 65 is connected with control station 66 by wire.The bottom of sample jar 4 is provided with coal column support 47, and coal column support 47 is provided with test coal column 48.Coal column gas adsorption desorbing Multi parameters Test Macro also includes stress monitoring system and temperature monitoring system；Stress monitoring system includes that at least one is positioned at the strain-ga(u)ge transducer 61 of coal column 48 side surface；Temperature monitoring system includes the infrared temperature sensor 62 being positioned on sample jar 4 inwall；Strain-ga(u)ge transducer 61 and infrared temperature sensor 62 are connected in series with data collecting instrument 62 and computer 63 by data wire.
Sample jar 4 includes tank body 40 and cover 41；Tank body 40 and cover 41 Flange joint.At least one " O " RunddichtringO 46 it is provided with between tank body 40 and cover 41.The inwall of tank body 40 and the bottom of cover 41 are equipped with heat ray filter 42.Cover 41 is provided with hollow bolt 43；The data wire of strain-ga(u)ge transducer 61 and infrared temperature sensor 62 is connected in series with data collecting instrument 62 and computer 63 by hollow bolt 43.Hollow bolt 43 is by silicone rubber seal.
When using this test system test, follow the steps below: (1) first, the fresh coal sample gathering mining face under mine is processed into coal column, and is placed on the coal column support 47 within sample jar 4, and installation connects stress monitoring system and temperature monitoring system, preparing experiment.(2) air-leakage test of system is tested: be connected with integrated testability system with reference can 49 by sample jar 4, then pressure monitor system is opened and for helium device 5, whole test system is inflated, meet or exceed needed for experiment after high methane pressure, continue more than 6h, observe sample jar 4 and the reference can 49 force value situation of change of pressure measuring system control station 66.If force value reduces substantially, then there is air leakage point in explanation system, it is necessary to investigates various piece and processes；If pressure does not has significant change, then explanation system air-tightness is good；(3) gas adsorption test is carried out: open negative pressure drainage device 2, make whole test system be in vacuum state, then open temp measuring system and pressure measuring system, and open for gas device 1, and persistently supply gas until setting gas pressure, form the required gas condition of test；Coal body in reference can 49 and sample jar 4 is made to carry out gas adsorption process respectively, monitor gas pressure in reference can 49 and sample jar 4 by pressure transducer 65 to change, and continue to monitor in reference can 49 and sample jar 4 temperature during coal column gas adsorption and variation of stress by temperature monitoring system and stress monitoring system, it is thus achieved that coal column gas absorption rule；(4) desorption of mash gas test is carried out: after gas adsorption off-test, to sample jar 4 and reference can 49 desorbing simultaneously.The starting stage of desorption of mash gas, desorption rate is very fast, and the desorption process of starting stage is carried out video recording preservation, and desorption experiment plays back video recording again after terminating and reads gas volume and the time of desorbing starting stage.Record and preserve variations in temperature and the pressure changing of whole process.(5) to different coal samples, repeat step (1) ~ (4) and carry out gas adsorption desorption experiment successively, to obtaining the coal column adsorption-desorption framework deformation of process coal body own, temperature, the change of stress, and coal column desorption of mash gas amount is carried out data process.
The different coal samples that down-hole can directly be gathered by test system of the present utility model carry out gas adsorption desorption experiment under different gas pressures, analyse in depth coal sample gas adsorption desorbing Diffusion Law, can carry out framework deformation, variations in temperature and STRESS VARIATION in the coal sample gas adsorption desorption process of down-hole the most accurately measuring, tradition is avoided to utilize coal dust to carry out the drawback tested, experiment basis is provided for the temperature in research coal column gas adsorption desorption process and STRESS VARIATION, significant for research coal seam gas outburst prevention treatment.
Embodiment of above is only in order to illustrate this utility model and and technical scheme described by unrestricted this utility model；Although therefore this specification has been carried out detailed description with reference to each above-mentioned embodiment to this utility model, it will be appreciated by those persons skilled in the art that still can modify this utility model or equivalent；And all are without departing from the technical scheme of spirit and scope of the present utility model and improvement thereof, it all should be contained in the middle of right of the present utility model.
Claims (6)
1. a coal column gas adsorption desorbing Multi parameters Test Macro, including supplying gas device (1), negative pressure drainage device (2), adsorbent equipment, desorbing gas gathering system (3), supplying helium device (5) and pressure measuring system, described for gas device (1), in parallel between helium device (5), negative pressure drainage device (2), adsorbent equipment, described adsorbent equipment is connected with desorbing gas gathering system (3) by pipeline；Described adsorbent equipment includes sample jar (4) and reference can (49), described sample jar (4) and reference can (49) are respectively positioned in thermostatic water tank (7), and described pressure measuring system includes two pressure transducers (65) being positioned on the air inlet (44) of sample jar (4), reference can (49)；Described pressure transducer (65) is connected with control station (66) by wire, it is characterised in that the bottom of described sample jar (4) is provided with coal column support (47), and described coal column support (47) is provided with test coal column (48)；Described coal column gas adsorption desorbing Multi parameters Test Macro also includes stress monitoring system and temperature monitoring system；Described stress monitoring system includes that at least one is positioned at the strain-ga(u)ge transducer (61) of coal column (48) side surface；Described temperature monitoring system includes the infrared temperature sensor (62) being positioned on sample jar (4) inwall；Described strain-ga(u)ge transducer (61) and infrared temperature sensor (62) are connected in series with data collecting instrument (63) and computer (64) by data wire.
2. a kind of coal column gas adsorption desorbing Multi parameters Test Macro as claimed in claim 1, it is characterised in that described sample jar (4) includes tank body (40) and cover (41)；Described tank body (40) and cover (41) Flange joint.
3. a kind of coal column gas adsorption desorbing Multi parameters Test Macro as claimed in claim 2, it is characterised in that be provided with at least one " O " RunddichtringO (46) between described tank body (40) and cover (41).
4. a kind of coal column gas adsorption desorbing Multi parameters Test Macro as claimed in claim 3, it is characterised in that the inwall of described tank body (40) and the bottom of cover (41) are equipped with heat ray filter (42).
5. a kind of coal column gas adsorption desorbing Multi parameters Test Macro as claimed in claim 4, it is characterised in that described cover (41) is provided with hollow bolt (43)；The data wire of described strain-ga(u)ge transducer (61) and infrared temperature sensor (62) is connected in series with data collecting instrument (62) and computer (63) by hollow bolt (43).
6. a kind of coal column gas adsorption desorbing Multi parameters Test Macro as claimed in claim 5, it is characterised in that described hollow bolt (43) is by silicone rubber seal.
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| CN107561247A (en) * | 2017-09-30 | 2018-01-09 | 贵州大学 | A kind of WT 1 type gas speed determinators of controllable temperature |
| CN107860681A (en) * | 2017-11-08 | 2018-03-30 | 石家庄铁道大学 | A kind of the gas adsorption desorption properties test device and its method of testing of pre- adsorption moisture coal sample |
| CN108169004A (en) * | 2017-12-26 | 2018-06-15 | 安徽理工大学 | Radiant temperature field observation system and method in a kind of coal containing methane gas destructive process |
| CN108593494A (en) * | 2018-05-14 | 2018-09-28 | 华北科技学院 | A kind of experimental method and device promoting desorption of mash gas using external rotary magnetic field |
| CN108627415A (en) * | 2018-04-13 | 2018-10-09 | 河南理工大学 | A kind of deep mining stand under load coal gas absorption-desorption experimental system and method |
| CN108717033A (en) * | 2018-05-14 | 2018-10-30 | 华北科技学院 | A kind of experimental provision and experimental method improving coal gas desorption efficiency using magnetic-particle |
| CN109540733A (en) * | 2019-01-10 | 2019-03-29 | 中国矿业大学(北京) | Changes of heat flux experimental apparatus for testing and method during a kind of coal adsorption-desorption gas |
| CN109655371A (en) * | 2017-10-11 | 2019-04-19 | 中国石油化工股份有限公司 | A kind of experiment analytical method of raw coal adsorbed gas characteristic |
| CN110749720A (en) * | 2019-09-29 | 2020-02-04 | 华北科技学院 | Simulation experiment device for researching gas desorption rule under condition of wind flow driving coal migration |
| CN111521516A (en) * | 2019-12-11 | 2020-08-11 | 南通市飞宇石油科技开发有限公司 | Coal body gas adsorption and strain test system |
| CN111579583A (en) * | 2020-05-21 | 2020-08-25 | 太原理工大学 | Infrared thermal imaging device for testing coal adsorbed gas |
| CN112198083A (en) * | 2020-08-13 | 2021-01-08 | 太原理工大学 | Experimental device and method for measuring temperature change in coal adsorption and desorption process |
| CN113834753A (en) * | 2021-09-18 | 2021-12-24 | 华北科技学院(中国煤矿安全技术培训中心) | Isothermal adsorption-desorption system under coal sample vibration condition |
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- 2016-05-09 CN CN201620410760.4U patent/CN205593876U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561247A (en) * | 2017-09-30 | 2018-01-09 | 贵州大学 | A kind of WT 1 type gas speed determinators of controllable temperature |
| CN109655371A (en) * | 2017-10-11 | 2019-04-19 | 中国石油化工股份有限公司 | A kind of experiment analytical method of raw coal adsorbed gas characteristic |
| CN107860681A (en) * | 2017-11-08 | 2018-03-30 | 石家庄铁道大学 | A kind of the gas adsorption desorption properties test device and its method of testing of pre- adsorption moisture coal sample |
| CN107860681B (en) * | 2017-11-08 | 2020-08-21 | 石家庄铁道大学 | Gas adsorption and desorption characteristic testing device and method for pre-adsorbing moisture coal sample |
| CN108169004A (en) * | 2017-12-26 | 2018-06-15 | 安徽理工大学 | Radiant temperature field observation system and method in a kind of coal containing methane gas destructive process |
| CN108169004B (en) * | 2017-12-26 | 2021-04-27 | 安徽理工大学 | System and method for observing radiation temperature field in process of destroying gas-containing coal |
| CN108627415A (en) * | 2018-04-13 | 2018-10-09 | 河南理工大学 | A kind of deep mining stand under load coal gas absorption-desorption experimental system and method |
| CN108717033B (en) * | 2018-05-14 | 2021-03-16 | 华北科技学院 | Experimental device and experimental method for improving coal gas desorption rate by using magnetic particles |
| CN108593494A (en) * | 2018-05-14 | 2018-09-28 | 华北科技学院 | A kind of experimental method and device promoting desorption of mash gas using external rotary magnetic field |
| CN108717033A (en) * | 2018-05-14 | 2018-10-30 | 华北科技学院 | A kind of experimental provision and experimental method improving coal gas desorption efficiency using magnetic-particle |
| CN109540733A (en) * | 2019-01-10 | 2019-03-29 | 中国矿业大学(北京) | Changes of heat flux experimental apparatus for testing and method during a kind of coal adsorption-desorption gas |
| CN110749720A (en) * | 2019-09-29 | 2020-02-04 | 华北科技学院 | Simulation experiment device for researching gas desorption rule under condition of wind flow driving coal migration |
| CN110749720B (en) * | 2019-09-29 | 2022-01-04 | 华北科技学院 | Simulation experiment device for researching gas desorption rule under condition of wind flow driving coal migration |
| CN111521516A (en) * | 2019-12-11 | 2020-08-11 | 南通市飞宇石油科技开发有限公司 | Coal body gas adsorption and strain test system |
| CN111579583A (en) * | 2020-05-21 | 2020-08-25 | 太原理工大学 | Infrared thermal imaging device for testing coal adsorbed gas |
| CN112198083A (en) * | 2020-08-13 | 2021-01-08 | 太原理工大学 | Experimental device and method for measuring temperature change in coal adsorption and desorption process |
| CN113834753A (en) * | 2021-09-18 | 2021-12-24 | 华北科技学院(中国煤矿安全技术培训中心) | Isothermal adsorption-desorption system under coal sample vibration condition |
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