CN202101920U - Testing device for researching effect of mechanical vibration to adsorption and desorption properties of coal samples - Google Patents
Testing device for researching effect of mechanical vibration to adsorption and desorption properties of coal samples Download PDFInfo
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- CN202101920U CN202101920U CN2011202033232U CN201120203323U CN202101920U CN 202101920 U CN202101920 U CN 202101920U CN 2011202033232 U CN2011202033232 U CN 2011202033232U CN 201120203323 U CN201120203323 U CN 201120203323U CN 202101920 U CN202101920 U CN 202101920U
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Abstract
The utility model discloses a testing device for researching effect of mechanical vibration to adsorption and desorption properties of coal samples, which comprises a testing device base, a first support and a second support, wherein the first support and the second support are installed on the top of the testing device base. An adsorption tank for containing coal samples is installed on the first support, a cover plate for sealing the absorption tank is arranged at the top of the absorption tank, an air duct extending into the adsorption tank is installed at the geometric center of the cover plate, and a pressure sensor for detecting pressure inside the adsorption tank is installed on the cover plate. A vibration generator is installed on the second support, and a force sensor for detecting exciting force of the vibration generator to the first support is arranged in a space between the vibration generator and the first support. One end of the force sensor is connected with the vibration generator through a screw, and the other end of the force sensor is connected with the first support. The testing device for researching effect of mechanical vibration to adsorption and desorption properties of coal samples is simple in structure, reasonable in design, convenient and easy to use and operate, high in testing accuracy, complete in function, good in using effect and convenient to popularize and use.
Description
Technical field
The utility model belongs to the studying technological domain of coal and rock gas adsorption-desorption performance, especially relates to a kind of test unit of studying mechanical vibration to coal sample adsorption-desorption performance impact.
Background technology
The coal-bed gas adsorption-desorption characteristics also receives earth electric field, terrestrial stress, ground temperature and people and is influence of various factors such as digging activity except outside the Pass having with own character of coal body such as the porosity of coal body, atures of coal.Study coal-bed gas adsorption-desorption characteristic under the different factor affecting, all have crucial meaning for migration, gas outburst mechanism and the coal-bed gas exploitation of understanding coal-bed gas, the methane drainage and utilization project of coal-bed gas etc.
Domestic and international many scholars have done great deal of experimental for geophysical field, sound field, electric field, electromagnetic field, effective stress, temperature etc. to the rule that influences of coal-bed gas adsorption-desorption.But to the research of the adsorption-desorption rule of coal-bed gas under the mechanical vibration effect also seldom, be not exclusively used in the test unit of research mechanical vibration to coal sample adsorption-desorption performance impact.
The utility model content
The utility model technical matters to be solved is to above-mentioned deficiency of the prior art a kind of test unit of studying mechanical vibration to coal sample adsorption-desorption performance impact to be provided, and it is simple in structure; Reasonable in design; Use simple operation, the degree of accuracy of test is high, complete function; Result of use is good, is convenient to promote the use of.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of test unit of studying mechanical vibration to coal sample adsorption-desorption performance impact; It is characterized in that: the support one and support two that comprise the test unit pedestal and be installed in test unit pedestal top; On the said support one adsorption tanks that are used to hold coal sample are installed; The top of said adsorption tanks is provided with the cover plate that is used to seal adsorption tanks, and the geometric center position of said cover plate is equipped with the wireway that extend in the adsorption tanks, and the pressure transducer that is used to detect pressure in the adsorption tanks is installed on the said cover plate; On the said support two vibrator is installed; The force transducer that is used to detect the exciting force size that vibrator produces support one is installed in the space between said vibrator and the support one, and an end of said force transducer joins through screw rod and vibrator, and the other end of said force transducer and support one join.
Above-mentioned research mechanical vibration is characterized in that the test unit of coal sample adsorption-desorption performance impact: the two ends of said test unit pedestal are provided with handle.
Above-mentioned research mechanical vibration are to the test unit of coal sample adsorption-desorption performance impact; It is characterized in that: said support one comprises rectangle support one base plate that is installed in test unit pedestal top, is fixedly connected on four support one supporting legs of top, four summits of said support one base plate and be installed in support one top board on four support one supporting leg tops respectively; Said adsorption tanks are installed on support one top board, and the other end of said force transducer and support one top board join.
Above-mentioned research mechanical vibration are to the test unit of coal sample adsorption-desorption performance impact; It is characterized in that: the geometric center position of said support one top board is provided with threaded hole; The outside surface of said adsorption tanks is provided with the external thread that matches with threaded hole, and said adsorption tanks were installed on support one top board through said external thread and cooperating of threaded hole.
Above-mentioned research mechanical vibration is characterized in that the test unit of coal sample adsorption-desorption performance impact: said pressure transducer is installed on the cover board with the through hole that is provided with on the cover board through being wrapped in the peripheral sealant tape of pressure transducer.
Above-mentioned research mechanical vibration are to the test unit of coal sample adsorption-desorption performance impact; It is characterized in that: said support two comprises four support two supporting legs being installed in test unit pedestal top, be installed in support two top boards on four support two supporting leg tops and be symmetricly set on two trapezoidal holders on support two top board tops, and said vibrator is installed between two trapezoidal holders.
Above-mentioned research mechanical vibration is characterized in that the test unit of coal sample adsorption-desorption performance impact: said vibrator is installed between two trapezoidal holders through the vibrator gib screw.
Above-mentioned research mechanical vibration is characterized in that the test unit of coal sample adsorption-desorption performance impact: said vibrator is the electrodynamic type vibrator.
Above-mentioned research mechanical vibration is characterized in that the test unit of coal sample adsorption-desorption performance impact: said force transducer is a CL-YD-211A type piezoelectric pressure indicator.
The utility model compared with prior art has the following advantages:
1, the utility model comprise the test unit pedestal, be installed in test unit pedestal top support one and support two, be installed in adsorption tanks on the support one, be installed in the vibrator on the support two; Be installed in the pressure transducer on the adsorption tanks and be installed in vibrator and support one between force transducer; Can connect peripherals easily; Can carry out under different excited frequencies and amplitude influence, the coal sample adsorption-desorption gas characteristic test of variable grain, simple in structure and reasonable in design.
2, the volume of the utility model is little, and it is convenient, easy to assembly to lay, and easy to connect with peripherals uses simple operation.
3, the force transducer of the utility model adopts CL-YD-211A type piezoelectric pressure indicator, and binding data acquisition memory and computing machine carry out data recording and analysis, and the degree of accuracy of test is high.
4, the complete function of the utility model through regulating vibration frequency and vibration amplitude, can be used for studying under the influence of various amplitude and different vibration frequencies, the coal sample adsorption-desorption gas characteristic of same particle, and can study coal sample adsorption-desorption rule; Can be used for research under same frequency and amplitude, different particle coal sample adsorption-desorption gas characteristics; Absorption and desorption process that can comparative control coal sample under the same amplitude of different frequencies; Absorption and desorption process that can also comparative control coal sample under the same frequency of different amplitudes.
5, the result of use of the utility model is good, is convenient to promote the use of.
In sum, the utility model is simple in structure, and is reasonable in design; Use simple operation, the degree of accuracy of test is high, complete function; Fill up the blank of prior art, can carry out under different excited frequencies and amplitude influence the coal sample adsorption-desorption gas characteristic test of variable grain; Result of use is good, is convenient to promote the use of.
Through accompanying drawing and embodiment, the technical scheme of the utility model is done further detailed description below.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
The annexation synoptic diagram of the utility model and peripherals when Fig. 4 studies mechanical vibration to coal sample adsorption-desorption performance for adopting the utility model.
Description of reference numerals:
1-test unit pedestal; 2-1-support one base plate; 2-2-support one supporting leg;
2-3-support one top board; 3-1-support two supporting legs; 3-2-support two top boards;
The trapezoidal holder of 3-3-; The 4-adsorption tanks; The 5-cover plate;
The 6-wireway; The 7-pressure transducer; The 8-vibrator;
8-1-external equipment input end 9-force transducer; The 10-screw rod;
Mouthful;
The 11-handle; 12-vibrator gib screw; The 13-sweep generator;
The 14-power amplifier; The 15-signal conditioner; The 16-pressure unit;
17-data acquisition storer; The 18-computing machine; 19-gas absorption constant is measured
Appearance;
The 20-reduction valve; The 21-gas bomb; The 22-constant temperature water tank.
Embodiment
Like Fig. 1, Fig. 2 and shown in Figure 3; Support one and support two that the utility model comprises test unit pedestal 1 and is installed in test unit pedestal 1 top; The adsorption tanks 4 that are used to hold coal sample are installed on the said support one; The top of said adsorption tanks 4 is provided with the cover plate 5 that is used to seal adsorption tanks 4, and the geometric center position of said cover plate 5 is equipped with the wireway 6 that extend in the adsorption tanks 4, and the pressure transducer 7 that is used to detect pressure in the adsorption tanks 4 is installed on the said cover plate 5; On the said support two vibrator 8 is installed; The big or small force transducer 9 of exciting force that is used to detect one generation of 8 pairs of supports of vibrator is installed in the space between said vibrator 8 and the support one, and an end of said force transducer 9 joins through screw rod 10 and vibrator 8, and the other end of said force transducer 9 and support one join.The two ends of said test unit pedestal 1 are provided with handle 11.
Like Fig. 1, Fig. 2 and shown in Figure 3; In the present embodiment; Said support one comprises the rectangle support one base plate 2-1 that is installed in test unit pedestal 1 top, is fixedly connected on four supports, the one supporting leg 2-2 of top, four summits of said support one base plate 2-1 and be installed in the support one top board 2-3 on four supports, one supporting leg 2-2 top respectively; Said adsorption tanks 4 are installed on the support one top board 2-3, and the other end of said force transducer 9 and support one top board 2-3 join.Particularly; The geometric center position of said support one top board 2-3 is provided with threaded hole; The outside surface of said adsorption tanks 4 is provided with the external thread that matches with threaded hole, and said adsorption tanks 4 are through being installed in said external thread and cooperating of threaded hole on the support one top board 2-3.
In the present embodiment, said pressure transducer 7 is installed on the cover plate 5 with the through hole that is arranged on the cover plate 5 through being wrapped in pressure transducer 7 peripheral sealant tapes.Said vibrator 8 is the electrodynamic type vibrator.Said force transducer 9 is a CL-YD-211A type piezoelectric pressure indicator.
Like Fig. 1, Fig. 2 and shown in Figure 3; In the present embodiment; Said support two comprises four supports, two supporting leg 3-1, support two top board 3-2 that are installed in four supports, two supporting leg 3-1 tops that are installed in test unit pedestal 1 top and two trapezoidal holder 3-3 that are symmetricly set on support two top board 3-2 tops, and said vibrator 8 is installed between two trapezoidal holder 3-3.Particularly, said vibrator 8 is installed between two trapezoidal holder 3-3 through vibrator gib screw 12.
When using the utility model research mechanical vibration to coal sample adsorption-desorption Effect on Performance; At first the described test unit of the utility model is assembled; Assembling process is: (1) utilizes screw and packing ring support one base plate 2-1 to be fixed on the top of test unit pedestal 1; Wherein, four support one supporting leg 2-2 and support one base plate 2-1 are welded as a whole, and then support one top board 2-3 are installed in the top of four support one supporting leg 2-2 with screw; (2) pressure transducer 7 is installed on the cover plate 5 with the through hole that is arranged on the cover plate 5 through being wrapped in pressure transducer 7 peripheral sealant tapes; (3) in cover plate 5, place O type rubber seal, and utilize internal thread that is arranged on cover plate 5 inwalls and the external thread that is arranged on adsorption tanks 4 outside surfaces that cover plate 5 and adsorption tanks 4 are tightly connected; (4) utilize the external thread on adsorption tanks 4 outside surfaces adsorption tanks 4 to be connected on the support one top board 2-3, and make the bottom surface of cover plate 5 be close to the end face of support one top board 2-3 with the threaded hole that is arranged on support one top board 2-3 geometric center position; (5) four supports, two supporting leg 3-1 are installed in the top of test unit pedestal 1 with screw; The support two top board 3-2 that will be provided with two trapezoidal holder 3-3 with screw again are installed in the top of four support two supporting leg 3-1, with vibrator gib screw 12 vibrator 8 are installed between two trapezoidal holder 3-3 then; (6) be connected with vibrator 8 with the end of screw rod 10, with screw rod the other end of force transducer 9 be connected with support one top board 2-3 again and compress force transducer 9.
Then connect peripheral test equipment, as shown in Figure 4: (1) is linked in sequence sweep generator 13 and power amplifier 14 with cable successively, the output port of power amplifier 14 is received on the external equipment input end 8-1 that is arranged on vibrator 8 tops again; (2) output terminal at pressure transducer 7 connects signal conditioner 15, the output terminal of signal conditioner 15 is connected to the input end of data acquisition storer 17 again; (3) output terminal at force transducer 9 connects pressure unit 16, the output terminal of pressure unit 16 is connected to the input end of data acquisition storer 17 again; (4) output terminal with data acquisition storer 17 is connected to computing machine 18; (5) wireway 6 is connected with gas absorption constant analyzer 19, and gas absorption constant analyzer 19 is connected with gas bomb 21 through reduction valve 20; (6) before in the process of assembling test device, being connected to adsorption tanks 4 on the support one top board 2-3, need on support one base plate 2-1, to place constant temperature water tank 22 earlier and adsorption tanks 4 are immersed in the constant temperature water tank 22, in the constant temperature water tank 22 automatic temperature control system is housed.
Just can begin test then, process of the test is: a spot of gas is put in (1) from gas bomb 21, checks the impermeability of this test unit, guarantees its good seal; (2) open the valve and degassing valve that gas absorption constant analyzer 19 links to each other with adsorption tanks 4, the gas filling valve of closed gas absorption constant analyzer 19, atmospheric valve and with the tank connected valve of coal sample; (3) utilize after the vacuum pump degassing, close degassing valve, open gas filling valve, adsorption tanks 4 are inflated; (4) after absorption reaches balance; Open data acquisition storer 17 and sweep generator 13; Open valve and atmospheric valve that gas absorption constant analyzer 19 links to each other with adsorption tanks 4, treat that adsorption tanks 4 interior free gas are discharged fully after, close this two valves at once simultaneously; (5) open power amplifier 14; It drives 8 pairs of coal samples of vibrator and applies exciting force, and force transducer 9 is transferred to data acquisition storer 17 after recording the size of the exciting force that 8 pairs of supports of vibrator one produce and converting this exciting force to electric signal through pressure unit 16; Simultaneously, pressure transducer 7 detects and exports to data acquisition storer 17 after adsorption tanks 4 interior pressure are also adjusted through signal conditioner 15; (6) data acquisition storer 17 data that will gather storage are exported to computing machine 18, pressure and exciting force curve over time in the adsorption tanks 4 in the whole process of computing machine 18 record.
In the process of the test; Manual potentiometer through regulating sweep generator 13 can be realized the adjusting to vibration frequency; The gain knob of regulatory work rate amplifier 14 can realize the adjusting to vibration amplitude, can carry out the adsorption-desorption test of different frequency, various amplitude to coal sample like this, can be used for studying under the influence of various amplitude and different vibration frequencies; The coal sample adsorption-desorption gas characteristic of same particle, and can study coal sample adsorption-desorption rule; Can be used for research under same frequency and amplitude, different particle coal sample adsorption-desorption gas characteristics; Absorption and desorption process that can comparative control coal sample under the same amplitude of different frequencies; Absorption and desorption process that can also comparative control coal sample under the same frequency of different amplitudes; Thereby the research low-frequency mechanical vibrations is to the characteristic of coal sample adsorption-desorption gas, and outstanding influence has the theoretical direction effect to gas in the coal seam in the vibration that research digging activity is produced.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any restriction; Everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of the utility model technical scheme according to the utility model technical spirit.
Claims (9)
1. test unit of studying mechanical vibration to coal sample adsorption-desorption performance impact; It is characterized in that: the support one and support two that comprise test unit pedestal (1) and be installed in test unit pedestal (1) top; The adsorption tanks (4) that are used to hold coal sample are installed on the said support one; The top of said adsorption tanks (4) is provided with the cover plate (5) that is used to seal adsorption tanks (4); The geometric center position of said cover plate (5) is equipped with the wireway (6) that extend in the adsorption tanks (4); The pressure transducer (7) that is used to detect the interior pressure of adsorption tanks (4) is installed on the said cover plate (5), vibrator (8) is installed on the said support two, the force transducer (9) that is used to detect the exciting force size that vibrator (8) produces support one is installed in the space between said vibrator (8) and the support one; One end of said force transducer (9) joins through screw rod (10) and vibrator (8), and the other end and the support one of said force transducer (9) join.
2. according to the test unit of the described research mechanical vibration of claim 1 to coal sample adsorption-desorption performance impact, it is characterized in that: the two ends of said test unit pedestal (1) are provided with handle (11).
3. according to claim 1 or 2 described research mechanical vibration test unit to coal sample adsorption-desorption performance impact; It is characterized in that: said support one comprises rectangle support one base plate (2-1) that is installed in test unit pedestal (1) top, is fixedly connected on four support one supporting legs (2-2) of top, four summits of said support one base plate (2-1) and be installed in support one top board (2-3) on four support one supporting legs (2-2) top respectively; Said adsorption tanks (4) are installed on support one top board (2-3), and the other end of said force transducer (9) and support one top board (2-3) join.
4. according to the test unit of the described research mechanical vibration of claim 3 to coal sample adsorption-desorption performance impact; It is characterized in that: the geometric center position of said support one top board (2-3) is provided with threaded hole; The outside surface of said adsorption tanks (4) is provided with the external thread that matches with threaded hole, and said adsorption tanks (4) were installed on support one top board (2-3) through said external thread and cooperating of threaded hole.
According to claim 1 or 2 described research mechanical vibration to the test unit of coal sample adsorption-desorption performance impact, it is characterized in that: said pressure transducer (7) is installed on the cover plate (5) with the through hole that is arranged on the cover plate (5) through being wrapped in the peripheral sealant tape of pressure transducer (7).
6. according to claim 1 or 2 described research mechanical vibration test unit to coal sample adsorption-desorption performance impact; It is characterized in that: said support two comprises four support two supporting legs (3-1) of being installed in test unit pedestal (1) top, be installed in support two top boards (3-2) on four support two supporting legs (3-1) top and be symmetricly set on two trapezoidal holders (3-3) on support two top boards (3-2) top, and said vibrator (8) is installed between two trapezoidal holders (3-3).
7. according to the test unit of the described research mechanical vibration of claim 6 to coal sample adsorption-desorption performance impact, it is characterized in that: said vibrator (8) is installed between two trapezoidal holders (3-3) through vibrator gib screw (12).
8. according to the test unit of the described research mechanical vibration of claim 1 to coal sample adsorption-desorption performance impact, it is characterized in that: said vibrator (8) is the electrodynamic type vibrator.
9. according to the test unit of the described research mechanical vibration of claim 1 to coal sample adsorption-desorption performance impact, it is characterized in that: said force transducer (9) is a CL-YD-211A type piezoelectric pressure indicator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202033232U CN202101920U (en) | 2011-06-16 | 2011-06-16 | Testing device for researching effect of mechanical vibration to adsorption and desorption properties of coal samples |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011202033232U CN202101920U (en) | 2011-06-16 | 2011-06-16 | Testing device for researching effect of mechanical vibration to adsorption and desorption properties of coal samples |
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| CN104990865A (en) * | 2015-06-24 | 2015-10-21 | 辽宁工程技术大学 | Experiment system and method for testing desorption characteristic of coal to gas under vibration condition |
| CN105372119A (en) * | 2015-12-05 | 2016-03-02 | 西安科技大学 | Vibration cracking test device under energy control |
| CN105466806A (en) * | 2016-01-08 | 2016-04-06 | 河南理工大学 | Dynamic pressure-variable desorption experiment system for drilling cuttings |
| CN105866020A (en) * | 2016-03-17 | 2016-08-17 | 南华大学 | Testing system for desorption and adsorption of shale under action of low-frequency mechanical-vibration triaxial stress |
| CN105891103A (en) * | 2016-04-07 | 2016-08-24 | 西安科技大学 | Device and method for testing energy coupling law of material under mechanical vibration |
| CN106644819A (en) * | 2016-11-21 | 2017-05-10 | 中国石油天然气股份有限公司 | Bulk sample shale isothermal adsorption and de-absorption device |
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| CN110568027A (en) * | 2019-09-29 | 2019-12-13 | 中国矿业大学(北京) | Coal rock adsorption and desorption integrated resistivity measurement system |
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- 2011-06-16 CN CN2011202033232U patent/CN202101920U/en not_active Expired - Fee Related
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| CN104990865A (en) * | 2015-06-24 | 2015-10-21 | 辽宁工程技术大学 | Experiment system and method for testing desorption characteristic of coal to gas under vibration condition |
| CN104990865B (en) * | 2015-06-24 | 2018-06-19 | 辽宁工程技术大学 | Coal is to the experimental system and experimental method of desorption of mash gas feature under measure vibration condition |
| CN105372119A (en) * | 2015-12-05 | 2016-03-02 | 西安科技大学 | Vibration cracking test device under energy control |
| CN105466806B (en) * | 2016-01-08 | 2018-05-25 | 河南理工大学 | A kind of dynamic drilling cuttings pressure-swing desorption experimental system |
| CN105466806A (en) * | 2016-01-08 | 2016-04-06 | 河南理工大学 | Dynamic pressure-variable desorption experiment system for drilling cuttings |
| CN105866020A (en) * | 2016-03-17 | 2016-08-17 | 南华大学 | Testing system for desorption and adsorption of shale under action of low-frequency mechanical-vibration triaxial stress |
| CN105891103A (en) * | 2016-04-07 | 2016-08-24 | 西安科技大学 | Device and method for testing energy coupling law of material under mechanical vibration |
| CN106644819A (en) * | 2016-11-21 | 2017-05-10 | 中国石油天然气股份有限公司 | Bulk sample shale isothermal adsorption and de-absorption device |
| 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 |
| 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 |
| CN110568027A (en) * | 2019-09-29 | 2019-12-13 | 中国矿业大学(北京) | Coal rock adsorption and desorption integrated resistivity measurement system |
| CN113281234A (en) * | 2021-05-14 | 2021-08-20 | 河南工程学院 | Coal dust gas diffusion seepage flow measuring device |
| CN113281234B (en) * | 2021-05-14 | 2023-09-01 | 河南工程学院 | Coal dust gas diffusion seepage flow measuring device |
| 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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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20120616 |