CN205262805U - Coalbed gas sampling device - Google Patents

Coalbed gas sampling device Download PDF

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Publication number
CN205262805U
CN205262805U CN201521066340.0U CN201521066340U CN205262805U CN 205262805 U CN205262805 U CN 205262805U CN 201521066340 U CN201521066340 U CN 201521066340U CN 205262805 U CN205262805 U CN 205262805U
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CN
China
Prior art keywords
gas
gas sampling
cavity
sampling apparatus
outer sleeve
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
Application number
CN201521066340.0U
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Chinese (zh)
Inventor
牛红亚
骈炜
程文净
张海岛
姚文博
高康
陆青锋
孟志强
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Hebei University of Engineering
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Hebei University of Engineering
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Priority to CN201521066340.0U priority Critical patent/CN205262805U/en
Application granted granted Critical
Publication of CN205262805U publication Critical patent/CN205262805U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a coalbed gas sampling device, its characterized in that: including sampling device and survey device, the sampling device includes outside sleeve pipe, is provided with the spiral ridge who is used for the ore bed sampling on the outside sleeve pipe, the intraductal gas sampling device that is provided with of outside cover, outside sleeve pipe cup joint useful tunnelling sleeve in tunnelling in the ore bed outward, outside sheathed tube top is provided with the mining cavity, be provided with in the mining cavity with the opening place parallel push pedal in plane of the cavity of digging up mine, the push pedal rear portion is provided with a travel switch, travel switch is connected with first potentiometer, the both sides of mining cavity rear end are provided with a gas through -hole respectively, and the gas through -hole is connected with the breather pipe, and the breather pipe rear portion is connected with the gas sampling device. The utility model has the advantages of prior art's drawback, the reasonable novelty of structural design can be overcome to it.

Description

A kind of coal-bed gas sampling apparatus
Technical field
The utility model relates to a kind of coal-bed gas sampling apparatus, belongs to winning equipment field.
Background technology
Rich coal resources in China, each large, medium and small colliery spreads all over domestic exhausted most provinces,municipalities and autonomous regions. In all collieries, the whole nation, except sub-fraction is present low gas colliery, most colliery is all high fiery colliery. Coal seam gas-bearing capacity is one of important parameter of the association area such as gas control and control and coal bed gas evaluation and exploitation, and gas bearing capacity mensuration is the international difficult problem in Predicting Gas and gas control field always simultaneously. " first take out afterwards and adopt " etc. regulation and the requirement of relevant policies according to coal industry, each high fiery colliery all equipment configurations gas sampling system. So far the main cause not breaking through has 2 points: the first, coal sample can not ensure fixed point collection, and second, gas loss amount cannot accomplish accurate calculating. Gas bearing capacity wants Accurate Determining just must meet above 2 requirements simultaneously. At present, what lot of domestic and international expert measured gas bearing capacity focused on, and that loss amount calculates is upper, has set up different models and has simulated gas adsorption and resolving, thereby shown that a series of computing formula calculates the loss amount of gas bearing capacity in mensuration; Because absorption, the parsing of gas are the coefficient processes such as chemistry, physics and a complicated environmental condition, but these models all set up in laboratory, condition is single, model is simple etc., and factor causes meeting coal-bed gas actual resolved situation completely. Therefore, none or a kind of equipment can be measured gas bearing capacity exactly so far.
Utility model content
The deficiency existing for prior art, technical problem to be solved in the utility model is, a kind of coal-bed gas sampling apparatus is provided, easy and simple to handle, the samples of coal pulled of can fixing a point Accurate Determining coal seam gas-bearing capacity.
For solving the problems of the technologies described above, the technical scheme that the utility model is taked is that a kind of coal-bed gas sampling apparatus, is characterized in that: comprise sampling apparatus and determinator; Described sampling apparatus comprises outer sleeve, is provided with the spiral salient for ore bed sampling on outer sleeve; In described outer sleeve, be provided with gas sampling apparatus, outer sleeve is socketed with the driving sleeve for tunneling at ore bed outward; The top of described outer sleeve is provided with mining cavity, and mining is provided with the parallel plane push pedal in opening place with the cavity of digging up mine in cavity, and push pedal rear portion is provided with the first travel switch, and travel switch is connected with the first potentiometer; The both sides of described mining cavity rear end are respectively arranged with a gas through hole, and gas through hole is connected with breather pipe, and breather pipe rear portion is connected with gas sampling apparatus; Described gas sampling apparatus comprises gas sampling cavity, is provided with sampling air bag in gas sampling cavity, and the both sides of sampling air bag are provided with the second travel switch, and the second travel switch is connected with the second potentiometer, and gas sampling cavity rear end is connected with gas interface channel; One end of described sampling air bag connects breather pipe, and the other end connects gas interface channel; Described gas interface channel rear portion is connected with determinator; Between described gas sampling apparatus and outer sleeve, be provided with pulling apparatus, pulling apparatus comprises the internal thread that is arranged at outer sleeve inwall, and gas sampling apparatus outer setting has the external screw thread with threaded engagement; On described driving sleeve lining, be provided with the internal thread coordinating with thread protrusion; Described the first potentiometer and the second potentiometer are connected with control module.
Optimize, above-mentioned coal-bed gas sampling apparatus, described determinator comprises the second buffer air chamber with gas interface channel UNICOM, the second buffer air chamber rear portion is provided with detection air chamber, detects in air chamber and is provided with spiral sense channel; The anterior both sides of described sense channel are respectively arranged with grating transmitting terminal and grating receiving terminal; The rear portion of described sense channel is provided with radio detector; Described radio detector, grating transmitting terminal and grating receiving terminal are connected with receiving circuit, and receiving circuit connects treatment circuit.
Optimize, above-mentioned coal-bed gas sampling apparatus, described grating transmitting terminal and grating receiving terminal are waveform.
Optimize, above-mentioned coal-bed gas sampling apparatus, the sectional dimension of described mining cavity is greater than the sectional dimension of gas sampling cavity.
Optimize, above-mentioned coal-bed gas sampling apparatus, the front-end and back-end of described driving sleeve are respectively arranged with the drill bit coaxial with tunneling sleeve and connector.
The utility model has the advantage of that it can overcome the drawback of prior art, reasonable in design novelty. The application's design can realize gas sampling and gas monitor in same device. The advantage of this mode is: if use two complete equipments first to sample and detect afterwards, connecting pipe exists the situation of gas leakage unavoidably like this; Because existing apparatus need to, by after gas sampling, be taken on ground and detect, testing process is long, complex operation. The application's scheme can be carried out gas sample detecting process under any environmental condition, and volume is little, is easy to carry, and has facilitated outdoor exploration to use.
Push pedal promotes the first travel switch, and travel switch drives the first potentiometer action, and control module draws by detecting potentiometer the volume data that breeze enters; Sampling air bag is because air inlet is expanded, thus promotion the second travel switch, the second travel switch drives the second potentiometer action, and control module is passed through to detect the second potentiometric data, thereby draws the data of gas air inflow. Control module, by calculating this two item number according to the desorption of mash gas amount that draws every cubic metre of coal amount, facilitates technical staff to calculate gas bearing capacity.
The front-end and back-end of driving sleeve are respectively arranged with the drill bit coaxial with tunneling sleeve and connector, as long as carry enough driving sleeves, can explore different depth ore bed.
Grating transmitting terminal and grating receiving terminal are waveform, have reduced the Negotiation speed of air-flow in limited length, can increase like this precision of detection.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the internal structure schematic diagram of the utility model determinator;
Fig. 3 is the structural representation of the utility model embodiment 2;
In figure: 1 for outer sleeve, 2 for driving sleeve, 3 for mining cavity, 4 for push pedal, 5 be the first travel switch, 6 be the first potentiometer, 7 for gas sampling cavity, 8 for sampling air bag, 9 be the second travel switch, 10 be the second potentiometer, 11 for control module, 12 be the second buffer air chamber, 13 for detect air chamber, 14 for sense channel, 15 for radio detector, 16 for grating transmitting terminal, 17 for grating receiving terminal, 18 be determinator.
Detailed description of the invention
Further set forth technical characterstic of the present utility model below in conjunction with accompanying drawing and specific embodiment.
Embodiment 1
The utility model is a kind of coal-bed gas sampling apparatus, it is characterized in that: comprise sampling apparatus and determinator; Described sampling apparatus comprises outer sleeve, is provided with the spiral salient for ore bed sampling on outer sleeve; In described outer sleeve, be provided with gas sampling apparatus, outer sleeve is socketed with the driving sleeve for tunneling at ore bed outward; The top of described outer sleeve is provided with mining cavity, and mining is provided with the parallel plane push pedal in opening place with the cavity of digging up mine in cavity, and push pedal rear portion is provided with the first travel switch, and travel switch is connected with the first potentiometer; The both sides of described mining cavity rear end are respectively arranged with a gas through hole, and gas through hole is connected with breather pipe, and breather pipe rear portion is connected with gas sampling apparatus; Described gas sampling apparatus comprises gas sampling cavity, is provided with sampling air bag in gas sampling cavity, and the both sides of sampling air bag are provided with the second travel switch, and the second travel switch is connected with the second potentiometer, and gas sampling cavity rear end is connected with gas interface channel; One end of described sampling air bag connects breather pipe, and the other end connects gas interface channel; Described gas interface channel rear portion is connected with determinator; Between described gas sampling apparatus and outer sleeve, be provided with pulling apparatus, pulling apparatus comprises the internal thread that is arranged at outer sleeve inwall, and gas sampling apparatus outer setting has the external screw thread with threaded engagement; On described driving sleeve lining, be provided with the internal thread coordinating with thread protrusion; Described the first potentiometer and the second potentiometer are connected with control module.
Described determinator comprises the second buffer air chamber with gas interface channel UNICOM, and the second buffer air chamber rear portion is provided with detection air chamber, detects in air chamber and is provided with spiral sense channel; The anterior both sides of described sense channel are respectively arranged with grating transmitting terminal and grating receiving terminal; The rear portion of described sense channel is provided with radio detector; Described radio detector, grating transmitting terminal and grating receiving terminal are connected with receiving circuit, and receiving circuit connects treatment circuit.
The sectional dimension of described mining cavity is greater than the sectional dimension of gas sampling cavity.
The front-end and back-end of described driving sleeve are respectively arranged with the drill bit coaxial with tunneling sleeve and connector.
The utility model has the advantage of that it can overcome the drawback of prior art, reasonable in design novelty. The application's design can realize gas sampling and gas monitor in same device. The advantage of this mode is: if use two complete equipments first to sample and detect afterwards, connecting pipe exists the situation of gas leakage unavoidably like this; Because existing apparatus need to, by after gas sampling, be taken on ground and detect, testing process is long, complex operation. The application's scheme can be carried out gas sample detecting process under any environmental condition, and volume is little, is easy to carry, and has facilitated outdoor exploration to use.
Push pedal promotes the first travel switch, and travel switch drives the first potentiometer action, and control module draws by detecting potentiometer the volume data that breeze enters; Sampling air bag is because air inlet is expanded, thus promotion the second travel switch, the second travel switch drives the second potentiometer action, and control module is passed through to detect the second potentiometric data, thereby draws the data of gas air inflow. Control module, by calculating this two item number according to the desorption of mash gas amount that draws every cubic metre of coal amount, facilitates technical staff to calculate gas bearing capacity.
The front-end and back-end of driving sleeve are respectively arranged with the drill bit coaxial with tunneling sleeve and connector, as long as carry enough driving sleeves, can explore different depth ore bed.
Embodiment 2
This enforcement is with the difference of embodiment 1: described grating transmitting terminal and grating receiving terminal are waveform.
Grating transmitting terminal and grating receiving terminal are waveform, have reduced the Negotiation speed of air-flow in limited length, can increase like this precision of detection.
Certainly, above-mentioned explanation is not to restriction of the present utility model, and the utility model is also not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present utility model, variation, remodeling, interpolation or the replacement made, all should belong to protection domain of the present utility model.

Claims (5)

1. a coal-bed gas sampling apparatus, is characterized in that: comprise sampling apparatus and determinator; Described sampling apparatus comprises outer sleeve, is provided with the spiral salient for ore bed sampling on outer sleeve; In described outer sleeve, be provided with gas sampling apparatus, outer sleeve is socketed with the driving sleeve for tunneling at ore bed outward; The top of described outer sleeve is provided with mining cavity, and mining is provided with the parallel plane push pedal in opening place with the cavity of digging up mine in cavity, and push pedal rear portion is provided with the first travel switch, and travel switch is connected with the first potentiometer; The both sides of described mining cavity rear end are respectively arranged with a gas through hole, and gas through hole is connected with breather pipe, and breather pipe rear portion is connected with gas sampling apparatus; Described gas sampling apparatus comprises gas sampling cavity, is provided with sampling air bag in gas sampling cavity, and the both sides of sampling air bag are provided with the second travel switch, and the second travel switch is connected with the second potentiometer, and gas sampling cavity rear end is connected with gas interface channel; One end of described sampling air bag connects breather pipe, and the other end connects gas interface channel; Described gas interface channel rear portion is connected with determinator; Between described gas sampling apparatus and outer sleeve, be provided with pulling apparatus, pulling apparatus comprises the internal thread that is arranged at outer sleeve inwall, and gas sampling apparatus outer setting has the external screw thread with threaded engagement; On described driving sleeve lining, be provided with the internal thread coordinating with thread protrusion; Described the first potentiometer and the second potentiometer are connected with control module.
2. coal-bed gas sampling apparatus according to claim 1, it is characterized in that: described determinator comprises the second buffer air chamber with gas interface channel UNICOM, the second buffer air chamber rear portion is provided with detection air chamber, detects in air chamber and is provided with spiral sense channel; The anterior both sides of described sense channel are respectively arranged with grating transmitting terminal and grating receiving terminal; The rear portion of described sense channel is provided with radio detector; Described radio detector, grating transmitting terminal and grating receiving terminal are connected with receiving circuit, and receiving circuit connects treatment circuit.
3. coal-bed gas sampling apparatus according to claim 2, is characterized in that: described grating transmitting terminal and grating receiving terminal are waveform.
4. coal-bed gas sampling apparatus according to claim 3, is characterized in that: the sectional dimension of described mining cavity is greater than the sectional dimension of gas sampling cavity.
5. coal-bed gas sampling apparatus according to claim 4, is characterized in that: the front-end and back-end of described driving sleeve are respectively arranged with the drill bit coaxial with tunneling sleeve and connector.
CN201521066340.0U 2015-12-21 2015-12-21 Coalbed gas sampling device Expired - Fee Related CN205262805U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521066340.0U CN205262805U (en) 2015-12-21 2015-12-21 Coalbed gas sampling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521066340.0U CN205262805U (en) 2015-12-21 2015-12-21 Coalbed gas sampling device

Publications (1)

Publication Number Publication Date
CN205262805U true CN205262805U (en) 2016-05-25

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Application Number Title Priority Date Filing Date
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105403439A (en) * 2015-12-21 2016-03-16 河北工程大学 Coal seam gas sampling device
CN108444637A (en) * 2018-03-17 2018-08-24 河南理工大学 Optical Fiber Sensing Array for coal-bed gas dynamic pressure measurement
CN110470510A (en) * 2019-08-26 2019-11-19 贵州大学 A kind of acquisition tank with gas bearing capacity measurement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105403439A (en) * 2015-12-21 2016-03-16 河北工程大学 Coal seam gas sampling device
CN108444637A (en) * 2018-03-17 2018-08-24 河南理工大学 Optical Fiber Sensing Array for coal-bed gas dynamic pressure measurement
CN108444637B (en) * 2018-03-17 2020-03-31 河南理工大学 Optical fiber sensing array for coal bed gas dynamic pressure measurement
CN110470510A (en) * 2019-08-26 2019-11-19 贵州大学 A kind of acquisition tank with gas bearing capacity measurement

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160525

Termination date: 20161221