CN103670377A - 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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- CN103670377A CN103670377A CN201310548787.0A CN201310548787A CN103670377A CN 103670377 A CN103670377 A CN 103670377A CN 201310548787 A CN201310548787 A CN 201310548787A CN 103670377 A CN103670377 A CN 103670377A
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Abstract
The invention discloses a double-sensor pressure gauge for underground coal-bed gas. A circuit board of a first detecting device and a circuit board of a second detecting device are fixed at the two ends of a bridge connection piece respectively. A detecting end cap of the first detecting device is arranged at the other end of a pipe body, a detecting end cap of the second detecting device is connected with an isolated terminal, one end of the isolated terminal is at least provided with two connecting ports to be connected with a transmission cable, output cables connected with the connecting ports are led out from the other end of the isolated terminal, and the output cables are connected with the circuit boards of the detecting devices respectively. Through the mode, the double-sensor pressure gauge is provided with at least two independent detecting units, when one detecting unit is damaged, the other detecting unit can keep normal working, the function of warm backup is achieved, and smooth and continuous discharging and mining are guaranteed; after one detecting unit is buried by coal ash, dinas and the like, the other detecting unit can work normally in a one way mode, a user is reminded to discharge dinas timely, timely returning to work of the pressure gauge is guaranteed, and the service life is prolonged.
Description
Technical field
The present invention relates to coal bed gas extraction field, particularly relate under a kind of coal bed gas well and use dual sensor pressure meter.
Background technology
In coal bed gas extraction process, pressure gauge can be measured a plurality of measured values in down-hole, such as the pressure and temperature value of down-hole, according to these measured values, can better judge that down-hole has or not anomaly, and the smooth mining of coal bed gas is had very important significance.
In prior art, in pressure gauge, only has a working sensor, and there is at work defect in the pressure gauge of single-sensor, such as, the easily fracture under long-term pressure friction of transmission wirerope, also easily in use by flyash, sandstone etc., buried, lose the effect of measurement, reduce application life.
Summary of the invention
The technical problem that the present invention mainly solves is to provide under a kind of coal bed gas well with dual sensor pressure meter, can in a body, be provided with independently two detecting units, avoided a detecting unit easily to damage, the problem that causes pressure gauge normally to work, can also realize a measuring junction buried, the function that another measuring junction works on simultaneously.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide under a kind of coal bed gas well with dual sensor pressure meter, it is characterized in that, comprise: a body, described body one end is connected with transmission cable, described body inside is provided with at least two set detecting devices, be respectively the first checkout gear and second detection device, the first checkout gear and second detection device include a detection plug, a sensor and a circuit board, described detection plug is connected with the input of sensor, and the output of sensor is connected with circuit board;
The circuit board of described the first checkout gear and the circuit board of second detection device are individually fixed in bridgeware two ends, the detection plug of the first checkout gear is located at described body the other end, the detection plug of second detection device is connected with an isolation terminal, described isolation terminal one end is at least provided with 2 connectivity ports and is connected with transmission cable, the other end is drawn the output cable being connected with described connectivity port, and described output cable is connected with the circuit board of each checkout gear respectively.
In a preferred embodiment of the present invention, described transmission cable is three core cables, the isolation terminal mating with three core cables is three core isolation terminals, three core isolation terminals comprise 3 connectivity ports, and relatively draw 3 and export cables, wherein an output cable is connected with the circuit board of the first checkout gear through bridgeware, and all the other two output cables are 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 cable is drawn through detecting plug and sensor.
In a preferred embodiment of the present invention, transmission cable is connected with isolation terminal through a gas-tight silo.
In a preferred embodiment of the present invention, between described sensor, bridgeware and isolation terminal and inboard wall of tube body, all adopt seal 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 the sensor of described the first checkout gear and the sensor of second detection device, be provided with the difference in height of 60-80cm.
The invention has the beneficial effects as follows: under coal bed gas well of the present invention, with dual sensor pressure meter, there is at least independently detecting unit of two-way, when path loss bad time wherein, another road can keep normal work, has the function of Hot Spare, for the mining of carrying out continuing smoothly provides guarantee;
Between two-way detecting unit, can also carry out mutually verification, when two-way detecting unit data variation is consistent, can accurately judge the situation of Jing Kuang, and two-way detecting unit data variation is when inconsistent, needs by various investigations, judgement causes the inconsistent reason of data;
Owing to having difference in height between two-way detecting unit, after Dang Yi road detecting unit is buried by flyash, sandstone etc., the normally single channel work of another road detecting unit, and the timely sediment outflow of reminding user, guarantee that pressure gauge resumes work in time, increase work efficiency, extend working life.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also according to these accompanying drawings, obtain other accompanying drawing, wherein:
Fig. 1 uses the structural representation of dual sensor pressure meter one preferred embodiment under coal bed gas well of the present invention;
In accompanying drawing, the mark of each parts is as follows: 1, body, 2, detect plug, 3, sensor, 4, circuit board, 6, through hole, 7, output cable, 8, connectivity port, 9, gas-tight silo, 10, bridgeware, 11, isolation terminal.
The specific embodiment
Below the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
Under a kind of coal bed gas well, use dual sensor pressure meter, comprise: a body 1, described body 1 one end is connected with transmission cable, described body 1 inside is provided with at least two set detecting devices, be respectively the first checkout gear and second detection device, the first checkout gear and second detection device include a detection plug 2, a sensor 3 and a circuit board 4, and described detection plug 2 is connected with the input of sensor 3, and the output of sensor 3 is connected with circuit board 4.
Two set detecting devices there is independently circuit board 4, can work alone, do not affect mutually, break down when one group, normal operation is guaranteed on another road.
Wherein, between the sensor 3 of described the first checkout gear and the sensor 3 of second detection device, be provided with the difference in height of 60-80cm.When such structure can avoid the lower sensor in position 3 to be buried by flyash, sandstone etc., the sensor 3 that is positioned at higher position can normally be worked.
The circuit board 4 of described the first checkout gear is individually fixed in bridgeware 10 two ends with the circuit board 4 of second detection device.
The detection plug 2 of the first checkout gear 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 are at least provided with 2 connectivity ports 8 and are connected with transmission cable, the other end is drawn the output cable 7 being connected with described connectivity port 8, and described output cable 7 is connected with the circuit board 4 of each checkout gear respectively.
The preferred transmission cable of the present invention is three core cables, the isolation terminal 11 mating with three core cables is three core isolation terminals, three core isolation terminals comprise 3 connectivity ports 8, and relatively draw 3 and export cables 7, wherein an output cable 7 is connected with the circuit board 4 of the first checkout gear through the through hole 6 of offering on bridgeware 10, and all the other two output cables 7 are connected with the circuit board 4 of second detection device.
The pressure that the first checkout gear is surveyed in mine by being located at the detection plug 2 of body 1 the other end, and signal is passed to sensor 3, sensor 3 is passed to signal on circuit board 4, circuit board 4 is processed signal, and by an output cable 7, data-signal is sent data to external device by three core cables.
The pressure that second detection device is surveyed in mine by being located at the detection plug 2 of higher position, and signal is passed to sensor 3, sensor 3 is passed to signal on circuit board 4, circuit board 4 is processed signal, and by two output cables 7, data-signal is sent data to external device by three core cables.
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 cable 7 is drawn through detecting plug 2 and sensor 3.
Transmission cable is connected with isolation terminal 11 through a gas-tight silo 9.The effect of gas-tight silo 9 is to avoid transmission cable and isolation terminal 11 junctions to occur drainage, affects whole manometric normal work.
Between described sensor 3, bridgeware 10 and isolation terminal 11 and body 1 inwall, all adopt seal to be tightly connected.Seal not only can be guaranteed under the state of long-term pressurized water-tight, has stronger voltage endurance capability, can also masked segment signal, and avoid signal to interfere with each other, cause measurement result inaccurate.
Preferred body 1 diameter range of the present invention is 3-7cm, and structure is small and exquisite, and cost of transportation is low, and assembling convenient storage, constructs light flexibly.
Under coal bed gas well of the present invention, with dual sensor pressure meter, have at least independently detecting unit of two-way, when path loss bad time wherein, another road can keep normal work, has the function of Hot Spare, for the mining of carrying out continuing smoothly provides guarantee;
Between two-way detecting unit, can also carry out mutually verification, when two-way detecting unit data variation is consistent, can accurately judge the situation of Jing Kuang, and two-way detecting unit data variation is when inconsistent, needs by various investigations, judgement causes the inconsistent reason of data;
Owing to having difference in height between two-way detecting unit, after Dang Yi road detecting unit is buried by flyash, sandstone etc., the normally single channel work of another road detecting unit, and the timely sediment outflow of reminding user, guarantee that pressure gauge resumes work in time, increase work efficiency, extend working life.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (7)
1. under a coal bed gas well, use dual sensor pressure meter, it is characterized in that, comprise: a body, described body one end is connected with transmission cable, described body inside is provided with at least two set detecting devices, is respectively the first checkout gear and second detection device, and the first checkout gear and second detection device include a detection plug, a sensor and a circuit board, described detection plug is connected with the input of sensor, and the output of sensor is connected with circuit board;
The circuit board of described the first checkout gear and the circuit board of second detection device are individually fixed in bridgeware two ends, the detection plug of the first checkout gear is located at described body the other end, the detection plug of second detection device is connected with an isolation terminal, described isolation terminal one end is at least provided with 2 connectivity ports and is connected with transmission cable, the other end is drawn the output cable being connected with described connectivity port, and described output cable is connected with the circuit board of each checkout gear respectively.
2. under coal bed gas well according to claim 1, use dual sensor pressure meter, it is characterized in that, described transmission cable is three core cables, the isolation terminal mating with three core cables is three core isolation terminals, three core isolation terminals comprise 3 connectivity ports, and relatively draw 3 output cables, and wherein an output cable is connected with the circuit board of the first checkout gear through bridgeware, and all the other two output cables are connected with the circuit board of second detection device.
3. under coal bed gas well according to claim 1, use dual sensor pressure meter, it is characterized in that, 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 cable is drawn through detecting plug and sensor.
4. under coal bed gas well according to claim 1, use dual sensor pressure meter, it is characterized in that, transmission cable is connected with isolation terminal through a gas-tight silo.
5. under coal bed gas well according to claim 1, use dual sensor pressure meter, it is characterized in that, between described sensor, bridgeware and isolation terminal and inboard wall of tube body, all adopt seal to be tightly connected.
6. under coal bed gas well according to claim 1, use dual sensor pressure meter, it is characterized in that, described pipe diameter scope is 3-7cm.
7. under coal bed gas well according to claim 1, use dual sensor pressure meter, it is characterized in that, between the sensor of described the first checkout gear and the sensor of second detection device, be provided with the difference in height of 60-80cm.
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 |
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| 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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| CN103670377A true CN103670377A (en) | 2014-03-26 |
| CN103670377B 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971589A (en) * | 2016-06-01 | 2016-09-28 | 中国地质大学（武汉） | Coalbed methane downhole pressure detection device |
| CN114215507A (en) * | 2021-05-21 | 2022-03-22 | 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 (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1598519A2 (en) * | 2004-05-18 | 2005-11-23 | Reedhycalog LP | 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 |
| 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 |
-
2013
- 2013-11-08 CN CN201310548787.0A patent/CN103670377B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1598519A2 (en) * | 2004-05-18 | 2005-11-23 | Reedhycalog LP | 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 |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971589A (en) * | 2016-06-01 | 2016-09-28 | 中国地质大学（武汉） | Coalbed methane downhole pressure detection device |
| 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 |
| CN114215507A (en) * | 2021-05-21 | 2022-03-22 | 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 |
| 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 |
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| CN103670377B (en) | 2016-11-23 |
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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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