CN109085289A - A kind of fixed wind energy gas detector of mine - Google Patents
A kind of fixed wind energy gas detector of mine Download PDFInfo
- Publication number
- CN109085289A CN109085289A CN201810731698.2A CN201810731698A CN109085289A CN 109085289 A CN109085289 A CN 109085289A CN 201810731698 A CN201810731698 A CN 201810731698A CN 109085289 A CN109085289 A CN 109085289A
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- gas detector
- detector
- fully automatic
- wind energy
- generator
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- 230000006698 induction Effects 0.000 claims abstract description 12
- 239000000523 sample Substances 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 13
- 238000007726 management method Methods 0.000 abstract description 12
- 238000005259 measurement Methods 0.000 abstract description 10
- 230000005611 electricity Effects 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a kind of fixed wind energy gas detectors of mine, it pops one's head in including generator, negative pressure generating device, fully automatic gas detector, alarm and gas management, the generator is arranged at the top of fully automatic gas detector, is equipped with blade in the shaft of generator；The fully automatic gas detector includes detector shell, and fully automatic gas detector is equipped with negative pressure generating device and air entry, and the enclosure interior of fully automatic gas detector is arranged in negative pressure generating device and its suction end is connected to air entry；Air entry connects gas management probe by air induction hose；Using traditional wind generating technology, being generated electricity using wind energy caused by artificial air blast and providing electric energy carries out real-time monitoring and alarm to watt instrument is surveyed；It eliminates security risk existing for existing measurement fire damp concentration and solves retardance existing for measurement fire damp now；And accomplishes that real-time delivery fire damp makes information, reduce the incidence of disaster caused by mine Yin Wasi.
Description
Technical field
The present invention relates to a kind of device of the measurement gas density of wind power generation, feature is capable of fixing in any area in underground
Domain, the detecting instrument for measuring and alarming in time, more specifically, it relates to a kind of fixed wind energy gas detector of mine.
Background technique
Gas is the phonemic loans of the English of gas in fact, and the definition of gas is quite extensive, is not single a certain kind east
West, including the natural gas and coal mine gas in life, gas is initial stage of the archaeophyte in accumulation coal-forming, cellulose and organic matter
Effect through anaerobic bacteria is decomposed, high temperature, high pressure environment in, while coal-forming, due to physics and chemical action, after
Continuous to generate gas, gas is colourless, tasteless, odorless gas, currently, the application of gas is extremely general in mining technique field
Time, gas burst accident is also one of the accident of underground most serious.When gas reaches a certain concentration in formation downhole, easily send out
Raw gas burst accident.
At present, it is common to use fire damp measuring instrument be power autonomous portable survey watt instrument, need people to be entrained into
Enter underground to be detected.Firstly, its measurement has delay, carried out secondly, people is needed to enter inside the unknown mine of gas density
Detection, there are biggish security risks.
Summary of the invention
In order to overcome hidden danger and retardance existing for existing measurement fire damp concentration, the purpose of the present invention is to provide one
Kind can be fixed on the survey watt instrument of any vent position in mine, generated electricity and mentioned using wind energy caused by artificial air blast
Real-time monitoring and alarm are carried out to watt instrument is surveyed for electric energy, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of fixed wind energy gas detector of mine, including the detection of generator, negative pressure generating device, fully automatic gas
Instrument, alarm and gas management probe, the generator are arranged at the top of fully automatic gas detector, pacify in the shaft of generator
Equipped with blade；The fully automatic gas detector includes detector shell, and fully automatic gas detector is equipped with negative pressure and generates dress
It sets and air entry, the enclosure interior of fully automatic gas detector is arranged in negative pressure generating device and its suction end and air entry connect
It is logical；Air entry connects gas management probe by air induction hose, and de-watering apparatus is connected on air induction hose.
Further, the blade surface is equipped with dust-proof coating.
Further, the generator connects motor cabinet by support rod, and motor cabinet is mounted on fully automatic gas detector shell
On body, fully automatic gas detector and generator thereon are fixed on any vent position in mine.
Further, it is bolted to connection between the motor cabinet and the detector shell of fully automatic gas detector.
Further, there are three the blade is arranged altogether, and three blades are uniformly mounted on shaft one end of generator.
Further, the side of the detector shell is provided with computer connector, and fully automatic gas detector bottom passes through
Gas management conducting wire connects alarm.
Further, the detector shell of the fully automatic gas detector is made of high rigidity metal.
Further, the generator connects battery, and battery is mounted in motor cabinet, and battery is connected negative by conducting wire
Press generation device.
Further, the negative pressure generating device in the fully automatic gas detector is vacuum pumping pump.
In conclusion compared with the prior art, the invention has the following beneficial effects:
The present invention uses traditional wind generating technology, makes multiple groups small-sized machine transmission device using the artificial air blast in underground
Mechanical movement occurs to produce electricl energy to cut magnetic induction line caused by electromagnetic assembly, and electrical energy transportation is reached to surveying in watt instrument
To real-time monitoring and early warning.Further, it is also possible to which having route real-time delivery by mine surveys watt instrument metrical information.
It is generated electricity using wind energy caused by artificial air blast and electric energy is provided and carry out real-time monitoring and police to watt instrument is surveyed
Report；It eliminates security risk existing for existing measurement fire damp concentration and solves the existing delay of measurement fire damp now
Property；And accomplishes that real-time delivery fire damp makes information, reduce the incidence of disaster caused by mine Yin Wasi.
In order to explain the structural features and functions of the invention more clearly, come with reference to the accompanying drawing with specific embodiment to this hair
It is bright to be described in detail.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Appended drawing reference: 1- generator, 2- shaft, 3- blade, the dust-proof coating of 4-, 5- support rod, 6- motor cabinet, 7- voltage electricity
Stream transformer, 8- negative pressure generating device, 9- fully automatic gas detector, 10- gas management conducting wire, 11- alarm, 12- are calculated
Machine connector, 13- de-watering apparatus, 14- air induction hose, 15- gas management probe.
Specific embodiment
The following further describes the technical solution of the present invention in the following with reference to the drawings and specific embodiments.
Referring to Fig. 1, a kind of fixed wind energy gas detector of mine, including it is generator 1, negative pressure generating device 8, full-automatic
Gas detector 9, alarm 11 and gas management probe 15, the generator 1 are arranged at 9 top of fully automatic gas detector,
Blade 3 is installed, 3 surface of blade is equipped with dust-proof coating 4, and generator 1 connects motor by support rod 5 in the shaft 2 of generator 1
Seat 6, motor cabinet 6 is mounted on 9 shell of fully automatic gas detector, the fully automatic gas detector 9 and power generation thereon
Machine 1 is fixed on any vent position in mine, using traditional wind generating technology, makes generator using the artificial air blast in underground
Interior multiple groups small-sized machine transmission device occurs mechanical movement and produces electricl energy to cut magnetic induction line caused by electromagnetic assembly, and
By in electrical energy transportation to fully automatic gas detector 9, electric energy progress real-time monitoring is provided for the work of fully automatic gas detector 9
With alarm.
In order to further improve the fastness that motor cabinet 6 and fully automatic gas detector 9 connect, it is preferred that in this reality
It applies in example, is bolted to connection between the detector shell of motor cabinet 6 and fully automatic gas detector 9.
Referring to Fig. 1, in order to further improve the generating efficiency of generator 1, it is preferred that in the present embodiment, blade 3 is total
There are three settings, and three blades 3 are uniformly mounted on 2 one end of shaft of generator 1.
The fully automatic gas detector 9 includes detector shell, and the side of detector shell is provided with computer connector
12,9 bottom of fully automatic gas detector connects alarm 11 by gas management conducting wire 10, accomplishes that real-time delivery fire damp is done
Information is obtained, the incidence of disaster caused by mine Yin Wasi is reduced.
The fully automatic gas detector 9 is equipped with negative pressure generating device 8 and air entry, and negative pressure generating device 8 is arranged
Fully automatic gas detector 9 enclosure interior and its suction end be connected to air entry, air entry is connected by air induction hose 14
Gas management probe 15, is connected with de-watering apparatus 13 on air induction hose 14；When in use, fully automatic gas detector 9 is negative
It presses the work of generation device 8 to generate negative pressure, the mixed gas in mine is drawn into gas management probe 15, if the gas of sucking
In be mixed with water, then water filters out water by de-watering apparatus 13, filters out the gas of water by air induction hose 14 and enters fully automatic gas
Detector 9 ensure that the aridity for entering gas in fully automatic gas detector 9 to realize the filtering to methane gas,
Realize accurate measurement.
In gas density measurement, it is only necessary to the gas management probe 15 that air induction hose 14 connects is placed under mine and need to survey
Position is measured, enters inside the unknown mine of gas density without people and detects, measurement result real-time delivery, there is no prolong for measurement
Late, the safety of gas surveying is improved, the generation of disaster caused by mine Yin Wasi is reduced.
Preferably, in the present embodiment, generator 1 connects battery, and the electric energy for generating wind-power electricity generation is stored in
In battery, battery is mounted in motor cabinet 6, and battery connects negative pressure generating device 8 by conducting wire, is negative pressure generating device
8 work provide electric energy, voltage current adapter 7 are electrically connected between battery and negative pressure generating device 8, by the voltage of battery
Electric current is converted to consistent with the voltage of negative pressure generating device 8.
Preferably, in the present embodiment, the detector shell of fully automatic gas detector 9 is made of high rigidity metal, protects
Its interior detectors part under the high pressure in mine has been demonstrate,proved not to be damaged.
Preferably, in the present embodiment, the negative pressure generating device 8 in fully automatic gas detector 9 is vacuum pumping pump, can also
To use other negative pressure generating devices, this is not limited by the present invention.
Preferably, in the present embodiment, the fully automatic gas detector 9 in detection system can also use other analyzers
To detect other gases, this is not limited by the present invention.
It should be strongly noted that generator 1, battery, voltage current adapter 7 and fully automatic gas in the application
Detector 9 is the application of the prior art, and model, specification are directly selected on the market, bought, repeat no more in the present invention,
This is not limited by the present invention.
The technical principle of the invention is described above in combination with a specific embodiment, is only the preferred embodiment of the present invention.This
The protection scope of invention is not limited merely to above-described embodiment, and all technical solutions belonged under thinking of the present invention belong to the present invention
Protection scope.Those skilled in the art, which does not need to pay for creative labor, can associate other specific realities of the invention
Mode is applied, these modes will fall within the scope of protection of the present invention.
Claims (9)
1. a kind of fixed wind energy gas detector of mine, including the inspection of generator (1), negative pressure generating device (8), fully automatic gas
Survey instrument (9), alarm (11) and gas management probe (15), which is characterized in that the generator (1) is arranged in fully automatic gas
At the top of detector (9), blade (3) are installed in the shaft (2) of generator (1)；The fully automatic gas detector (9) includes inspection
Instrument shell is surveyed, fully automatic gas detector (9) is equipped with negative pressure generating device (8) and air entry, negative pressure generating device (8) setting
Fully automatic gas detector (9) enclosure interior and its suction end be connected to air entry；Air entry passes through air induction hose (14)
Gas management probe (15) is connected, de-watering apparatus (13) are connected on air induction hose (14).
2. the fixed wind energy gas detector of a kind of mine according to claim 1, which is characterized in that the blade (3)
Surface is equipped with dust-proof coating (4).
3. the fixed wind energy gas detector of a kind of mine according to claim 1, which is characterized in that the generator
(1) by support rod (5) connection motor cabinet (6), motor cabinet (6) is mounted on fully automatic gas detector (9) shell, automatically
Gas detector (9) and generator (1) thereon are fixed on any vent position in mine.
4. the fixed wind energy gas detector of a kind of mine according to claim 3, which is characterized in that the motor cabinet
(6) it is bolted to connection between the detector shell of fully automatic gas detector (9).
5. the fixed wind energy gas detector of a kind of mine according to claim 1 or 2, which is characterized in that the blade
(3) altogether there are three settings, and three blades (3) are uniformly mounted on shaft (2) one end of generator (1).
6. the fixed wind energy gas detector of a kind of mine according to claim 1, which is characterized in that the detector shell
The side of body is provided with computer connector (12), and fully automatic gas detector (9) bottom is connected by gas management conducting wire (10)
Alarm (11).
7. the fixed wind energy gas detector of a kind of mine according to claim 6, which is characterized in that the fully-automatic tile
The detector shell of this detector (9) is made of high rigidity metal.
8. the fixed wind energy gas detector of a kind of mine according to claim 1, which is characterized in that the generator
(1) battery is connected, battery is mounted in motor cabinet (6), and battery connects negative pressure generating device (8) by conducting wire.
9. the fixed wind energy gas detector of a kind of mine according to claim 1, which is characterized in that the fully-automatic tile
Negative pressure generating device (8) in this detector (9) is vacuum pumping pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810731698.2A CN109085289A (en) | 2018-07-05 | 2018-07-05 | A kind of fixed wind energy gas detector of mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810731698.2A CN109085289A (en) | 2018-07-05 | 2018-07-05 | A kind of fixed wind energy gas detector of mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109085289A true CN109085289A (en) | 2018-12-25 |
Family
ID=64836986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810731698.2A Pending CN109085289A (en) | 2018-07-05 | 2018-07-05 | A kind of fixed wind energy gas detector of mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109085289A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111042855A (en) * | 2020-01-14 | 2020-04-21 | 广州力寄采矿设备有限公司 | Mine methane detection processing vehicle |
| CN112696234A (en) * | 2019-10-23 | 2021-04-23 | 太原理工大学 | Coal mine underground gas concentration monitoring system |
| CN113565571A (en) * | 2021-09-26 | 2021-10-29 | 山东世纪智慧农业科技有限公司 | Multipath branch line signal determining and positioning device and using method thereof |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201830249U (en) * | 2010-09-08 | 2011-05-11 | 清华大学 | Mine wireless transceiver system capable of using wind energy as energy |
| CN103511195A (en) * | 2012-06-15 | 2014-01-15 | 歌美飒创新技术公司 | Method for optimizing the efficiency of wind turbine blades |
| CN203420701U (en) * | 2013-08-06 | 2014-02-05 | 淮南矿业(集团)有限责任公司 | Gas detection and protection device and extraction drill hole gas detection system |
| CN104076008A (en) * | 2014-06-18 | 2014-10-01 | 华电电力科学研究院 | Infrared analysis method and instrument for measuring content of carbon dioxide in carbonate of coal |
| CN104614221A (en) * | 2015-02-17 | 2015-05-13 | 淮南矿业(集团)有限责任公司 | Gas-water separation device for gas detection and detection system |
| CN204386809U (en) * | 2014-11-28 | 2015-06-10 | 江河机电装备工程有限公司 | Wind electricity blade |
| CN105704251A (en) * | 2016-04-25 | 2016-06-22 | 南阳师范学院 | Mine WSN safety monitoring system based on wind-induced vibration piezoelectric energy self-energizing |
| CN106194577A (en) * | 2015-05-28 | 2016-12-07 | 菱重维斯塔斯海上风力有限公司 | Air vane and wind power generation plant and the manufacture of air vane or remodeling method |
| CN107102205A (en) * | 2017-04-06 | 2017-08-29 | 河南理工大学 | Coal petrography adsorption-desorption integral resistance rate measuring method |
| CN105092410B (en) * | 2015-07-14 | 2017-11-10 | 中煤科工集团重庆研究院有限公司 | Method and device for measuring desorption amount of large-block-size residual coal gas in goaf |
| CN206669575U (en) * | 2017-04-19 | 2017-11-24 | 贵州大学 | A kind of multi-functional colliery Special back wind generating mine lamp |
| CN207245756U (en) * | 2017-07-26 | 2018-04-17 | 吴晓强 | A kind of coal mining gas management equipment |
| CN108169128A (en) * | 2018-01-10 | 2018-06-15 | 绵阳鑫阳知识产权运营有限公司 | For the equipment of Coal mine methane Concentration Testing |
-
2018
- 2018-07-05 CN CN201810731698.2A patent/CN109085289A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201830249U (en) * | 2010-09-08 | 2011-05-11 | 清华大学 | Mine wireless transceiver system capable of using wind energy as energy |
| CN103511195A (en) * | 2012-06-15 | 2014-01-15 | 歌美飒创新技术公司 | Method for optimizing the efficiency of wind turbine blades |
| CN203420701U (en) * | 2013-08-06 | 2014-02-05 | 淮南矿业(集团)有限责任公司 | Gas detection and protection device and extraction drill hole gas detection system |
| CN104076008A (en) * | 2014-06-18 | 2014-10-01 | 华电电力科学研究院 | Infrared analysis method and instrument for measuring content of carbon dioxide in carbonate of coal |
| CN204386809U (en) * | 2014-11-28 | 2015-06-10 | 江河机电装备工程有限公司 | Wind electricity blade |
| CN104614221A (en) * | 2015-02-17 | 2015-05-13 | 淮南矿业(集团)有限责任公司 | Gas-water separation device for gas detection and detection system |
| CN106194577A (en) * | 2015-05-28 | 2016-12-07 | 菱重维斯塔斯海上风力有限公司 | Air vane and wind power generation plant and the manufacture of air vane or remodeling method |
| CN105092410B (en) * | 2015-07-14 | 2017-11-10 | 中煤科工集团重庆研究院有限公司 | Method and device for measuring desorption amount of large-block-size residual coal gas in goaf |
| CN105704251A (en) * | 2016-04-25 | 2016-06-22 | 南阳师范学院 | Mine WSN safety monitoring system based on wind-induced vibration piezoelectric energy self-energizing |
| CN107102205A (en) * | 2017-04-06 | 2017-08-29 | 河南理工大学 | Coal petrography adsorption-desorption integral resistance rate measuring method |
| CN206669575U (en) * | 2017-04-19 | 2017-11-24 | 贵州大学 | A kind of multi-functional colliery Special back wind generating mine lamp |
| CN207245756U (en) * | 2017-07-26 | 2018-04-17 | 吴晓强 | A kind of coal mining gas management equipment |
| CN108169128A (en) * | 2018-01-10 | 2018-06-15 | 绵阳鑫阳知识产权运营有限公司 | For the equipment of Coal mine methane Concentration Testing |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696234A (en) * | 2019-10-23 | 2021-04-23 | 太原理工大学 | Coal mine underground gas concentration monitoring system |
| CN111042855A (en) * | 2020-01-14 | 2020-04-21 | 广州力寄采矿设备有限公司 | Mine methane detection processing vehicle |
| CN113565571A (en) * | 2021-09-26 | 2021-10-29 | 山东世纪智慧农业科技有限公司 | Multipath branch line signal determining and positioning device and using method thereof |
| CN113565571B (en) * | 2021-09-26 | 2021-12-17 | 山东世纪智慧农业科技有限公司 | Multipath branch line signal determining and positioning device and using method thereof |
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Application publication date: 20181225 |