CN103670377B - Double-sensor pressure gauge for underground coal-bed gas - Google Patents
Double-sensor pressure gauge for underground coal-bed gas Download PDFInfo
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- CN103670377B CN103670377B CN201310548787.0A CN201310548787A CN103670377B CN 103670377 B CN103670377 B CN 103670377B CN 201310548787 A CN201310548787 A CN 201310548787A CN 103670377 B CN103670377 B CN 103670377B
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Abstract
The invention discloses a kind of Double-sensor pressure gauge for underground coal-bed gas, the circuit board of the first detection device is individually fixed in bridgeware two ends with the circuit board of second detection device, the detection plug of the first detection device is located at described body the other end, the detection plug of second detection device and an isolation terminal connect, isolation terminal one end is connected with transmission cable at least provided with 2 connectivity ports, the other end draws the output cord that is connected with described connectivity port, and described output cord circuit board with each detection device respectively is connected.By the way, the present invention has the detector unit of at least two-way independence, and when wherein path loss bad time, another road can keep normally working, have the function of Hot Spare, provides guarantee for the most lasting mining that carries out；After a road detector unit is buried by flyash, sandstone etc., another road detector unit can normally single channel work, and reminds the timely sediment outflow of user, it is ensured that piezometer is resumed work in time, extends working life.
Description
Technical field
The present invention relates to coal bed gas extraction field, particularly relate to a kind of Double-sensor pressure gauge for underground coal-bed gas.
Background technology
During coal bed gas extraction, piezometer can measure the multiple measured value in down-hole, the pressure and temperature value of such as down-hole, can preferably judge that down-hole has very important significance with or without abnormal phenomena, mining smooth to coal bed gas according to these measured values.
In prior art, only one of which working sensor in piezometer, and the piezometer of single-sensor existing defects at work, such as, transmission wirerope is easily broken off under long-term pressure friction, is also easy in use be buried by flyash, sandstone etc., lose the effect of measurement, reduce service life.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of Double-sensor pressure gauge for underground coal-bed gas, independent two detector unit can be provided with in a body, avoid a detector unit to be easily damaged, cause the problem that piezometer cannot normally work, can also realize a measurement end buried, another measures the function that end works on simultaneously.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide a kind of Double-sensor pressure gauge for underground coal-bed gas, it is characterized in that, including: a body, described body one end is connected with transmission cable, described tubular body is provided with at least two set detecting devices, it is respectively the first detection device and second detection device, first detection device and second detection device all include a detection plug, a sensor and a circuit board, described detection plug is connected with the input of sensor, and the outfan of sensor is connected with circuit board；
The described circuit board of the first detection device is individually fixed in bridgeware two ends with the circuit board of second detection device, the detection plug of the first detection device is located at described body the other end, the detection plug of second detection device and an isolation terminal connect, described isolation terminal one end is connected with transmission cable at least provided with 2 connectivity ports, the other end draws the output cord that is connected with described connectivity port, and described output cord circuit board with each detection device respectively is connected.
In a preferred embodiment of the present invention, described transmission cable is three core cables, the isolation terminal mated with three core cables is three core isolation terminals, three core isolation terminals include 3 connectivity ports, and relatively draw 3 output cord, wherein an output cord is through bridgeware and the circuit board connection of the first detection device, and remaining two output cord is connected with the circuit board of second detection device.
In a preferred embodiment of the present invention, the sensor of described second detection device, detection plug and isolation terminal are integrated setting, and described connectivity port is located on isolation terminal, and output cord is drawn through detection plug and sensor.
In a preferred embodiment of the present invention, transmission cable is connected through a gas-tight silo with isolation terminal.
In a preferred embodiment of the present invention, sealing member between described sensor, bridgeware and isolation terminal and inboard wall of tube body, is all used to be tightly connected.
In a preferred embodiment of the present invention, described pipe diameter scope is 3-7cm.
In a preferred embodiment of the present invention, between sensor and the sensor of second detection device of described first detection device, it is provided with the difference in height of 60-80cm.
The invention has the beneficial effects as follows: Double-sensor pressure gauge for underground coal-bed gas of the present invention has the detector unit of at least two-way independence, when wherein path loss bad time, another road can keep normally working, and has the function of Hot Spare, provides guarantee for the most lasting mining that carries out；
Can also verify mutually between two-way detector unit, when two-way detector unit data variation is consistent, can accurately judge the situation of Jing Kuang, and when two-way detector unit data variation is inconsistent, then need by various investigations, it is judged that cause the reason that data are inconsistent；
Owing to there is difference in height between two-way detector unit, after a road detector unit is buried by flyash, sandstone etc., another road detector unit can normally single channel work, and remind the timely sediment outflow of user, guarantee that piezometer is resumed work in time, improve work efficiency, extend working life.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in describing embodiment below, the required accompanying drawing used is briefly described, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of Double-sensor pressure gauge for underground coal-bed gas one of the present invention preferred embodiment；
In accompanying drawing, the labelling of each parts is as follows: 1, body, and 2, detection plug, 3, sensor, 4, circuit board, 6, through hole, 7, output cord, 8, connectivity port, 9, gas-tight silo, 10, bridgeware, 11, isolation terminal.
Detailed description of the invention
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Referring to Fig. 1, the embodiment of the present invention includes:
A kind of Double-sensor pressure gauge for underground coal-bed gas, including: a body 1, described body 1 one end is connected with transmission cable, described body 1 is internal is provided with at least two set detecting devices, it is respectively the first detection device and second detection device, first detection device and second detection device all include detection plug 2, sensor 3 and a circuit board 4, and described detection plug 2 is connected with the input of sensor 3, and the outfan of sensor 3 is connected with circuit board 4.
Two set detecting devices there is independent circuit board 4, can work alone, not affect, when one group breaks down, and another road guarantees properly functioning.
Wherein, the difference in height of 60-80cm it is provided with between sensor 3 and the sensor 3 of second detection device of described first detection device.When such structure is it can be avoided that the relatively low sensor 3 in position is buried by flyash, sandstone etc., the sensor 3 being positioned at higher position can normally work.
The described circuit board 4 of the first detection device is individually fixed in bridgeware 10 two ends with the circuit board 4 of second detection device.
The detection plug 2 of the first detection device is located at described body 1 the other end, the detection plug 2 of second detection device is connected with an isolation terminal 11, described isolation terminal 11 one end is connected with transmission cable at least provided with 2 connectivity ports 8, the other end draws the output cord 7 that is connected with described connectivity port 8, and described output cord 7 circuit board 4 with each detection device respectively is connected.
The preferred transmission cable of the present invention is three core cables, the isolation terminal 11 mated with three core cables is three core isolation terminals, three core isolation terminals include 3 connectivity ports 8, and relatively draw 3 output cord 7, wherein output cord 7 is connected through the through hole 6 offered on bridgeware 10 with the first circuit board 4 detecting device, and remaining two output cord 7 is connected with the circuit board 4 of second detection device.
First detection device is by being located at the pressure that the detection plug 2 of body 1 the other end detects in mine, and signal is passed to sensor 3, sensor 3 transmits signals on circuit board 4, signal is processed by circuit board 4, and by an output cord 7, by three core cables, data signal is sent data to external device.
Second detection device is by being located at the pressure that the detection plug 2 of higher position detects in mine, and signal is passed to sensor 3, sensor 3 transmits signals on circuit board 4, signal is processed by circuit board 4, and by two output cord 7, by three core cables, data signal is sent data to external device.
The sensor 3 of described second detection device, detection plug 2 and isolation terminal 11 are integrated setting, and described connectivity port 8 is located on isolation terminal 11, and output cord 7 is drawn through detection plug 2 and sensor 3.
Transmission cable is connected through a gas-tight silo 9 with isolation terminal 11.The effect of gas-tight silo 9 is to avoid transmission cable and isolation terminal 11 junction drainage occur, affects whole manometric normal work.
Sealing member is all used to be tightly connected between described sensor 3, bridgeware 10 and isolation terminal 11 and body 1 inwall.Sealing member not only may insure that when long-term pressurized water-tight, has stronger voltage endurance capability, additionally it is possible to masked segment signal, it is to avoid signal interferes with each other, and causes measurement result inaccurate.
Currently preferred body 1 diameter range is 3-7cm, compact structure, and cost of transportation is low, assembles convenient storage, constructs the lightest.
Double-sensor pressure gauge for underground coal-bed gas of the present invention has the detector unit of at least two-way independence, and when wherein path loss bad time, another road can keep normally working, have the function of Hot Spare, provides guarantee for the most lasting mining that carries out；
Can also verify mutually between two-way detector unit, when two-way detector unit data variation is consistent, can accurately judge the situation of Jing Kuang, and when two-way detector unit data variation is inconsistent, then need by various investigations, it is judged that cause the reason that data are inconsistent；
Owing to there is difference in height between two-way detector unit, after a road detector unit is buried by flyash, sandstone etc., another road detector unit can normally single channel work, and remind the timely sediment outflow of user, guarantee that piezometer is resumed work in time, improve work efficiency, extend working life.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (6)
1. a Double-sensor pressure gauge for underground coal-bed gas, it is characterised in that including a: body, described body one end and biography
Defeated cable connects, and described tubular body is provided with at least two set detecting devices, and respectively first detects device and second detection device,
First detection device and second detection device all include a detection plug, a sensor and a circuit board, described detection plug
Being connected with the input of sensor, the outfan of sensor is connected with circuit board；
The circuit board of circuit board and the second detection device of described first detection device is individually fixed in bridgeware two ends, and first
The detection plug of detection device is located at described body the other end, and the detection plug of second detection device and an isolation terminal are even
Connecing, described isolation terminal one end is connected with transmission cable at least provided with 2 connectivity ports, and the other end is drawn and described connectivity port
The output cord connected, described output cord circuit board with each detection device respectively is connected；
Described transmission cable is three core cables, and the isolation terminal mated with three core cables is three core isolation terminals, three core isolation ends
Attached bag includes 3 connectivity ports, and relatively draws 3 output cord, and wherein an output cord is through bridgeware and the first detection
The circuit board of device connects, and remaining two output cord is connected with the circuit board of second detection device.
Double-sensor pressure gauge for underground coal-bed gas the most according to claim 1, it is characterised in that described second detection dress
Sensor, detection plug and the isolation terminal put are integrated setting, and described connectivity port is located on isolation terminal, and output cord is worn
Cross detection plug and sensor is drawn.
Double-sensor pressure gauge for underground coal-bed gas the most according to claim 1, it is characterised in that transmission cable passes one
Gas-tight silo is connected with isolation terminal.
Double-sensor pressure gauge for underground coal-bed gas the most according to claim 1, it is characterised in that described sensor, bridge
Sealing member is all used to be tightly connected between fitting and isolation terminal and inboard wall of tube body.
Double-sensor pressure gauge for underground coal-bed gas the most according to claim 1, it is characterised in that described pipe diameter model
Enclose for 3-7cm.
Double-sensor pressure gauge for underground coal-bed gas the most according to claim 1, it is characterised in that described first detection dress
The difference in height of 60-80cm it is provided with between sensor and the sensor of second detection device put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310548787.0A CN103670377B (en) | 2013-11-08 | 2013-11-08 | Double-sensor pressure gauge for underground coal-bed gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310548787.0A CN103670377B (en) | 2013-11-08 | 2013-11-08 | Double-sensor pressure gauge for underground coal-bed gas |
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| Publication Number | Publication Date |
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| CN103670377A CN103670377A (en) | 2014-03-26 |
| CN103670377B true CN103670377B (en) | 2016-11-23 |
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| CN201310548787.0A Expired - Fee Related CN103670377B (en) | 2013-11-08 | 2013-11-08 | Double-sensor pressure gauge for underground coal-bed gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971589B (en) * | 2016-06-01 | 2019-04-02 | 中国地质大学（武汉） | Pressure-detecting device under a kind of coal bed gas well |
| CN114215507B (en) * | 2021-05-21 | 2023-11-17 | 华北科技学院(中国煤矿安全技术培训中心) | Gas pressure measuring device and method based on directional drilling machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203584418U (en) * | 2013-11-08 | 2014-05-07 | 常州凯锐自动化控制设备有限公司 | Double-sensor pressure meter used under coal-bed gas well |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050257961A1 (en) * | 2004-05-18 | 2005-11-24 | Adrian Snell | Equipment Housing for Downhole Measurements |
| CN2871840Y (en) * | 2006-03-09 | 2007-02-21 | 西安市思坦电子科技有限公司 | Bi-sensor seal-testing pressure gauge of packer |
| CN201173115Y (en) * | 2008-04-02 | 2008-12-31 | 贵州航天凯山石油仪器有限公司 | Underground pressure gauge with double-layer structure for natural gas well |
| CN201193520Y (en) * | 2008-04-29 | 2009-02-11 | 大庆油田有限责任公司 | Double-measure press-guiding device under well of electric pump |
| CN201620882U (en) * | 2009-12-17 | 2010-11-03 | 西安思坦仪器股份有限公司 | Permanent pressure measurement system |
| CN201723216U (en) * | 2010-06-24 | 2011-01-26 | 北京阿达尔石油技术有限责任公司 | Two-probe pressure gauge |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203584418U (en) * | 2013-11-08 | 2014-05-07 | 常州凯锐自动化控制设备有限公司 | Double-sensor pressure meter used under coal-bed gas well |
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Effective date of registration: 20170222 Address after: 213000 Taihu East Road, Xinbei District, Jiangsu, China, 9-1, No., No. 1201 Patentee after: Jiangsu Shandao Kai Rui energy Polytron Technologies Inc. Address before: 213000 Jiangsu Province, the clock tower Development Zone, ERON Road, No. 6 high tech Venture Center, No. 6690 Patentee before: CHANGZHOU KAIRUI AUTOMATION CONTROL EQUIPMENT Co.,Ltd. |
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Granted publication date: 20161123 Termination date: 20211108 |
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