CN107120143A - A kind of real time gas concentration monitoring system for the different depth that drills - Google Patents
A kind of real time gas concentration monitoring system for the different depth that drills Download PDFInfo
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- CN107120143A CN107120143A CN201710317766.6A CN201710317766A CN107120143A CN 107120143 A CN107120143 A CN 107120143A CN 201710317766 A CN201710317766 A CN 201710317766A CN 107120143 A CN107120143 A CN 107120143A
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- concentration monitoring
- gas density
- different depth
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 39
- 238000005553 drilling Methods 0.000 claims description 21
- 238000001514 detection method Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 7
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 229910000737 Duralumin Inorganic materials 0.000 claims description 3
- 238000012644 addition polymerization Methods 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000011083 cement mortar Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 3
- 239000003245 coal Substances 0.000 description 16
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000005065 mining Methods 0.000 description 6
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910018569 Al—Zn—Mg—Cu Inorganic materials 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013401 experimental design Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention provides a kind of real time gas concentration monitoring system for the different depth that drills, including gas density collection main frame, an Acquisition Instrument and some concentration sensors, gas density collection main frame is connected by cable with concentration sensor, by being wirelessly connected with Acquisition Instrument, including a real time gas concentration monitoring module；Each concentration sensor is both secured in a protecting tube, is detected gas density information and is generated electric signal, and the electric signal is sent into gas density by cable gathers main frame；The Acquisition Instrument with computer by being wirelessly connected.The system can realize the real time gas concentration monitoring to the different depth that drills, and gas density information and change in concentration feature are obtained in real time, gas high concentration early warning is sent in time, it is to avoid the generation of gas accident, improve the security of underground work.The system is simple in construction, and intelligence degree is high, easy to operate.
Description
Technical field
The invention belongs to technical field of mine safety, it is related to a kind of coal mine gas concentration monitoring system, and in particular to a kind of
The real time gas concentration monitoring system of drilling different depth.
Background technology
During China's conventional energy resource is constituted, coal resources total amount is 5.57 trillion tons, in China's primary energy production and consumption
Proportion in structure accounts for 76% and 69% respectively, coal as China the main body energy, in Chinese national economy development is promoted
Play the role of important.As superficial part resource is gradually decreased, exploitation of coal resources has progressed into the new normality of deep mining, coal
Resource exploitation enters after deep, and basic mechanical property damaged deformation rule and the superficial part of coal petrography have obvious otherness, right
Safety in production in colliery proposes brand-new challenge.For coal mine, it is cause coal mining accident main that gas density is too high
One of reason, into deep after change with the mechanical characteristics of coal and rock, the bearing features of its deep fractures gas, gas with
The variation characteristic of exploitation is obvious different from the presence of superficial part coal seam, and deep exploitation of coal resources faces gas safety problem also increasingly
It is severe.Therefore, in order to probe into the migration rule of gas under deep fractures gas bearing feature and mining effect, in engineering practice
Gas density in coal seam is monitored in real time, it is to avoid gas is too high and the disaster accident that causes, is the extraction and improvement of gas
Foundation is provided.
Gas concentration monitoring system and gas concentration monitoring equipment in coal mining enterprise, be directed primarily to different operating face,
Coal-bed gas concentration monitor in difference drilling.However, due to the inhomogeneities of the preservation in coal seam, and deep fractures its gas exhibitions
Reveal the visibly different feature of superficial part, therefore the same different drilling depths, the change of its gas density content of drilling in deep fractures
It is unknown to change.In coal mining enterprise's gas control, gas control scheme is carried out according further to traditional mode and experience mostly
Design, for deep fractures gas control, the gas pumping hole arrangement that is related in engineering practice, drilling depth, drilling are straight
The determination value in footpath, dip angle of hole and sealed borehole length must be considered.Therefore a kind of simple and convenient, high-intelligentization, high-precision brill are needed badly
Hole different depth real time gas concentration monitoring system.
The content of the invention
In view of above-mentioned deficiency, the present invention provides a kind of real time gas concentration monitoring system for the different depth that drills, realization pair
Drilled the real time gas concentration monitoring of different depth, and gas density information and change in concentration feature are obtained in real time, is sent in time watt
This high concentration early warning, it is to avoid the generation of gas accident, improves the security of underground work, and the system is simple in construction, intelligent journey
Degree is high, easy to operate.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of real time gas concentration monitoring system for the different depth that drills, including gas density collection main frame, a collection
Instrument and some concentration sensors, the gas density collection main frame be connected by cable with concentration sensor, by wirelessly with collection
Instrument is connected, including a real time gas concentration monitoring module；Each concentration sensor is both secured in a protecting tube, and detection gas is dense
Degree information simultaneously generates electric signal, and the electric signal is sent into gas density by cable gathers main frame；The Acquisition Instrument passes through wireless
It is connected with computer.
Further, the protecting tube is tubular, closed at both ends, and multiple holes are provided with the wall of side.
Further, opposite sides is provided with two mounting holes in the middle part of the side wall of the protecting tube, the concentration sensor
Shell is provided with two screwed holes corresponding with two mounting holes, by bolt by mounting hole connection corresponding with screwed hole, so that
Concentration sensor is fixedly connected in protecting tube.
Further, the protecting tube is extra super duralumin alloy (mainly Al-Zn-Mg-Cu systems alloy).
Further, the concentration sensor is 2 to 8, in parallel each other；The gas density collection main frame is 8
Passage, connection is not more than the concentration sensor of 8.
Further, the gas density scope of the concentration sensor detection is 0~5000ppm.
Further, the real time gas concentration monitoring module includes a gas concentration monitoring submodule, a processing submodule
Block, a sub-module stored and a transmission submodule, the gas concentration monitoring submodule monitor the electricity of the information containing gas density in real time
Signal is simultaneously converted to data signal, and gas density information is carried out treatment classification by the processing submodule, and the sub-module stored is appearance
Memory of the amount more than or equal to 1TB, the transmission submodule is wireless communication module.
Further, the real time gas concentration monitoring module includes early warning submodule and figure shows submodule, and this is pre-
Alert submodule connects an early-warning lamp, and a threshold values is set by the early warning submodule, when gas density exceedes the threshold values, then triggers
The early-warning lamp is alarmed；The figure shows submodule is a LED LCDs.
Further, the concentration sensor includes a detection unit, a microprocessing unit and a transmission unit, the detection
Unit is used to detect gas density information, and the gas density information of detection is converted into electric signal by the microprocessing unit, by passing
Electric signal is inputted cable by defeated unit.
Further, the protecting tube equipped with concentration sensor is placed in drilling, is fixed by hole sealing agent, the hole sealing agent
Including the polyurethane positioned at two ends and positioned at middle cement mortar, sealed by solid hole plug addition polymerization urethane, the solid hole plug is stopper.
The beneficial effects of the invention are as follows：
The system is simple in construction, and its protecting tube is tubular, and side wall is loose structure, inside sets concentration sensor, can be effective
Ensure the seepage flow aggregation of monitored area gas, improve gas density data validity；Gas density collection main frame can be automatically
Detection gas density information, intelligent high in real time, and mass data can be stored by its massive store unit, without artificial detection
And storage, operating efficiency is improved, human resources are saved；Acquisition Instrument gathers the information of main frame by wireless collection gas density, and
Can remotely it send to computer, operation is convenient；By the concentration sensor of multiple different depths in drilling, the system can be real-time
Monitoring drilling in different depth gas density information and change in concentration feature, be gas pumping hole arrangement, drilling depth,
Bore diameter, dip angle of hole and sealed borehole length provide data and supported；By provided with early warning mechanism sent out when gas density is too high
Go out warning information, it is to avoid the generation of gas accident, improve the security of underground work.The system monitoring gradient is more, monitors depth
Greatly, it is easy for installation, it is easy to operate, it is adaptable in the engineering such as mining, gas control, roadway support.
Brief description of the drawings
Fig. 1 is a kind of real time gas concentration monitoring system structure diagram of drilling different depth of embodiment.
Fig. 2 is protecting tube and concentration sensor schematic diagram.
Fig. 3 is a kind of data transmission scheme of the real time gas concentration monitoring system of drilling different depth of embodiment.
In figure：1- protecting tubes, 11- mounting holes, 2- concentration sensors, 21- screwed holes, 22- shells, 23- bolts, 3- sealing of holes
Agent, 4- solid hole plugs, 5- cables, 6- gas densities collection main frame, 7- Acquisition Instruments, 8- computers, 9- early-warning lamps.
Embodiment
To enable the features described above and advantage of the present invention to become apparent, special embodiment below, and coordinate institute's accompanying drawing work
Describe in detail as follows.
The present embodiment provides a kind of real time gas concentration monitoring system for the different depth that drills, as shown in figure 1, including protection
The bar of top in pipe 1, concentration sensor 2, cable 5, gas density collection main frame 6, Acquisition Instrument 7, computer 8, early-warning lamp 9, figure
Shape is drilling, is easy to understand the position of concentration sensor 2, fixed position will use hole sealing agent 3 and solid hole plug 4.Wherein, it is dense
It is several to spend sensor 2, and generally no more than 8, the present embodiment selects 3, and each concentration sensor 2 is located at a protecting tube 1
It is interior and be connected with each other, it is fixed on by hole sealing agent 3 and solid hole plug 4 in drilling, it is connected with cable 5, and cable 5 uses multicore structure,
It is parallel with one another between each concentration sensor 2；Cable 5 and gas density collection main frame 6 are connected, gas density collection main frame 6 with
Acquisition Instrument 7, by wireless connection, is provided with pre- with computer 8 by wireless connection, Acquisition Instrument 7 on gas density collection main frame 6
Warning lamp 9.
As shown in Fig. 2 protecting tube 1 is tubular, closed at both ends, both sides are left above and below centre is provided with mounting hole 11, side wall
Intensive hole, is easy to gas to enter aggregation.Protecting tube 1 selects extra super duralumin alloy material, it is to avoid drilling is in great horizontal stress bar
Collapse hole under part.The external diameter of protecting tube 1 is 90mm × 500mm, and internal diameter is 87mm × 500mm, each weighs about 1kg.Concentration sensor 2
The size of shell 22 is diameter 85mm × 150mm, and both sides are provided with screwed hole 21 up and down.The external screw thread of bolt 23 and mounting hole 11 and spiral shell
The internal thread matching of pit 21, concentration sensor 2 is fixed in protecting tube 1.
Concentration sensor 2 includes detection unit, microprocessing unit and the transmission unit being sequentially connected, detection unit detection watt
The gas density information of detection is converted into electric signal by this concentration information, microprocessing unit, is inputted by transmission unit to cable
5, and then gas density collection main frame 6 is transferred to, the detectable gas density scope of detection unit is in 0~5000ppm, detection essence
Degree is high.
Gas density collection main frame 6 includes the real-time detection module of a gas density, and the module specifically includes gas density prison
Submodule, processing submodule, sub-module stored and transmission submodule are surveyed, gas concentration monitoring submodule monitors gas density in real time
The electric signal of information simultaneously converts electrical signals to data signal, and gas density information is carried out classification processing and passed by processing submodule
Sub-module stored storage is delivered to, sub-module stored is the mass storage that capacity is more than or equal to 1TB, and transmission submodule uses nothing
The mode of line communication.Gas density collection main frame 6 also includes early warning submodule and figure shows submodule, early warning submodule and place
Manage in submodule connection, early warning submodule and set a threshold values, when gas density exceedes the threshold values, will trigger and early warning
The early-warning lamp 9 of module connection, sends warning information；Figure shows submodule selects LED LCDs.Concentration gathers main frame 6
For 8 passages, 8 concentration sensors can be at most connected.Gas density collection main frame 6 also includes collection button, transmission button, concentration
Sensor select button etc., can realize the functions such as the collection, transmission and the selection to various concentrations sensor of data accordingly.
Data transfer is as shown in figure 3, gas density information is converted into electric signal transmission to gas density by concentration sensor
Main frame is gathered, gas density collection main frame is further handled by each submodule of the real-time detection module of gas density, with number
Word aspect is wirelessly transmitted to Acquisition Instrument, and Acquisition Instrument is transmitted to computer by wireless communication, and the post processing on computer is soft
The variation ofgas density feature of each depth of part analysis drilling.
One concrete application of the system is as follows：
1. according to experimental designs, horizontal bore is drilled through to layer in coal cutting roadway, aperture is 90mm, and drilling depth is
40m, azimuth vertical working arrangement, inclination angle is 5 °, cleans residue in drilling.
2. after drilling is finished, first from bottom hole pitch aperture 40m positions, it is put into first protection for being provided with concentration sensor
Pipe, then carries out sealing of hole, sealed borehole length 8m；The anti-of concentration sensor then is installed being put into second away from aperture 30m positions
Pillar, then carries out sealing of hole, sealed borehole length 8m；It is last that concentration sensor is installed away from aperture 20m positions, being put into the 3rd
Protecting tube, then carries out sealing of hole, sealed borehole length 18m；Sealing of hole will use hole sealing agent, hole sealing agent includes poly- in end positions
Urethane and cement mortar in an intermediate position；Solid hole (sealing) is carried out using stopper addition polymerization urethane at the 2m of aperture.
3. treat after the completion of sealing of hole, gas density collection main frame is installed near aperture the more stable area of country rock on lane side
Domain, and cable is attached with gas density collection main frame.
4. gas density is set to gather main frame：Gas density collection main frame is adjusted to open state, it is right into Setting pattern
Answer each concentration sensor that label No. 1, No. 2, No. 3 is set respectively；Collection button is clicked on after being provided with and enters gas density
Drainage pattern is monitored in real time, and data acquisition is at interval of 5 minutes records, one data.
5. gone into the well every 24 hours and carry out a data acquisition, step is as follows：Transmission button is clicked on, into data transfer mould
Formula, selects corresponding concentration sensor numbering, while opening Acquisition Instrument, selects corresponding concentration sensor numbering, clicks on and determine,
All data that concentration sensor is monitored can be exported.
6. Acquisition Instrument is taken back into ground, computer is imported by the pattern being wirelessly transferred；Computer is equipped with special USB
Wireless receiver, is wirelessly connected with Acquisition Instrument, completes methane Concentration Measurement work.
Claims (10)
1. a kind of real time gas concentration monitoring system for the different depth that drills, including gas density collection main frame, an Acquisition Instrument
With some concentration sensors, gas density collection main frame is connected by cable with concentration sensor, passes through wireless and Acquisition Instrument
Connection, including a real time gas concentration monitoring module；Each concentration sensor is both secured in a protecting tube, detects gas density
Information simultaneously generates electric signal, and the electric signal is sent into gas density by cable gathers main frame；The Acquisition Instrument by wirelessly with
Computer is connected.
2. a kind of real time gas concentration monitoring system of different depth that drills according to claim 1, it is characterised in that institute
Protecting tube is stated for tubular, it is closed at both ends, multiple holes are provided with the wall of side.
3. a kind of real time gas concentration monitoring system of different depth that drills according to claim 1 or 2, its feature exists
In opposite sides is provided with two mounting holes in the middle part of the side wall of the protecting tube, and the shell of the concentration sensor is provided with and two
Corresponding two screwed holes of individual mounting hole, by bolt by mounting hole connection corresponding with screwed hole, so that concentration sensor is fixed
It is connected in protecting tube.
4. a kind of real time gas concentration monitoring system of different depth that drills according to claim 1, it is characterised in that institute
Protecting tube is stated for extra super duralumin alloy.
5. a kind of real time gas concentration monitoring system of different depth that drills according to claim 1, it is characterised in that institute
Concentration sensor is stated for 2 to 8, it is in parallel each other；The gas density collection main frame is 8 passages, and connection is not more than 8
Concentration sensor.
6. a kind of real time gas concentration monitoring system of different depth that drills according to claim 1, it is characterised in that institute
The gas density scope for stating concentration sensor detection is 0~5000ppm.
7. a kind of real time gas concentration monitoring system of different depth that drills according to claim 1, it is characterised in that institute
Stating real time gas concentration monitoring module includes a gas concentration monitoring submodule, a processing submodule, a sub-module stored and one
Submodule is transmitted, the gas concentration monitoring submodule monitors the electric signal of the information containing gas density and is converted to digital letter in real time
Number, gas density information is carried out treatment classification by the processing submodule, and the sub-module stored is the storage that capacity is more than or equal to 1TB
Device, the transmission submodule is wireless communication module.
8. a kind of real time gas concentration monitoring system of drilling different depth according to claim 1 or 7, its feature exists
In the real time gas concentration monitoring module includes early warning submodule and figure shows submodule, early warning submodule connection one
Early-warning lamp, a threshold values is set by the early warning submodule, when gas density exceedes the threshold values, then triggers early-warning lamp alarm；
The figure shows submodule is a LED LCDs.
9. a kind of real time gas concentration monitoring system of different depth that drills according to claim 1, it is characterised in that institute
Stating concentration sensor includes a detection unit, a microprocessing unit and a transmission unit, and the detection unit is used to detect that gas is dense
Information is spent, and the gas density information of detection is converted into electric signal, electric signal is inputted by transmission unit by the microprocessing unit
Cable.
10. a kind of real time gas concentration monitoring system of different depth that drills according to claim 1, it is characterised in that
The protecting tube equipped with concentration sensor is placed in drilling, is fixed by hole sealing agent, and the hole sealing agent is included positioned at the poly- of two ends
Urethane and the cement mortar positioned at centre, are sealed by solid hole plug addition polymerization urethane, and the solid hole plug is stopper.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710317766.6A CN107120143A (en) | 2017-05-08 | 2017-05-08 | A kind of real time gas concentration monitoring system for the different depth that drills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710317766.6A CN107120143A (en) | 2017-05-08 | 2017-05-08 | A kind of real time gas concentration monitoring system for the different depth that drills |
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| CN107120143A true CN107120143A (en) | 2017-09-01 |
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| CN201710317766.6A Pending CN107120143A (en) | 2017-05-08 | 2017-05-08 | A kind of real time gas concentration monitoring system for the different depth that drills |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320142A (en) * | 2019-07-03 | 2019-10-11 | 中煤能源研究院有限责任公司 | Adopt lithostructure and gas variation observation Inversion System and method |
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Cited By (2)
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| CN110320142A (en) * | 2019-07-03 | 2019-10-11 | 中煤能源研究院有限责任公司 | Adopt lithostructure and gas variation observation Inversion System and method |
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Address after: 467000 miner Middle Road No. 21, Henan Province, Pingdingshan Applicant after: China Pingmei Shenma Holding Group Co.,Ltd. Applicant after: PINGDINGSHAN TIANAN COAL MINING Co.,Ltd. Applicant after: SICHUAN University Address before: 467000 miner Middle Road No. 21, Henan Province, Pingdingshan Applicant before: CHINA PINGMEI SHENMA ENERGY CHEMICAL GROUP Co.,Ltd. Applicant before: PINGDINGSHAN TIANAN COAL MINING Co.,Ltd. Applicant before: SICHUAN University |