CN101839130B - Gas sample acquisition and analysis device for coal mine gob - Google Patents
Gas sample acquisition and analysis device for coal mine gob Download PDFInfo
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- CN101839130B CN101839130B CN2009101298110A CN200910129811A CN101839130B CN 101839130 B CN101839130 B CN 101839130B CN 2009101298110 A CN2009101298110 A CN 2009101298110A CN 200910129811 A CN200910129811 A CN 200910129811A CN 101839130 B CN101839130 B CN 101839130B
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Abstract
The invention discloses a gas sample acquisition and analysis device for a coal mine gob, relating to safety production equipment in coal industry, in particular relating to a simple, fast and safe gas sample acquisition and analysis device for a coal mine gob, which is suitable for one person to operate fast and conveniently in limited space down a mine to finish gas sample acquisition. The gas sample acquisition and analysis device comprises a gas sample acquisition part and a multi-parameter measurement part, and is characterized in that a piston is arranged in a sleeve, the piston is meshed with the pinion of the double-layer gear outside the sleeve through a planar gear rod, and a crank gear drives the double-layer gear to rotate through the alternative action between a handle and a return spring to form an integral gas acquisition system; three ports are arranged at a tail end of the sleeve, a middle port is connected with a multi-parameter meter, the other two ports are connected with an automatic gas inlet and outlet valve formed by a cone nozzle, steel beads and a spring. After the valve connected with an automatic gas inlet and outlet pipeline is closed, the composition and content of gas sample can be measured by opening the valve on the pipeline of the multi-parameter meter.
Description
One, technical field
Apparatus of the present invention relate to the coal industry safety in production, are specifically related to simple, quick, safe coal mine gob gas sample acquisition and analytical equipment.
Two, background technology
At present, the acquisition method of coal mine gob gas sample is mainly by pre-buried beam tube, gathers gas sample in the goaf with aspiration pump, then takes ground to and analyzes.Under coal mine, this not only requires aspiration pump must be explosion-proof type, and needs external power supply, increases current circuit and interface, makes the very trouble that operates, and has also increased many safety factors; And the gas sample of having adopted must take on ground and analyze, the unavoidable escape of gas sample and sneaking into of other gases in the middle of this, thus cause gas sample analytical error, affect the accuracy that goaf gas sample is analyzed, thereby affect judgement and three divisions of being with of coal spontaneous combustion.
Three, summary of the invention
1, technical problem
The purpose of patent of the present invention is to provide a kind of quick, easy, safe gas sample collecting device for air, and can directly measure composition and content in the gas sample.
2, technical scheme
A kind of gas sample acquisition and analysis device for coal mine gob, be grouped into by gas sample acquisition part and multi-parameter measurement, wherein gas sample acquisition partly includes sleeve, piston, face gear bar, double-layer gear, bent gear, holder, rule and two automatic air inlet/outlets.It is characterized in that gas sample acquisition is partly a sleeve, be provided with piston in sleeve, piston is connected with the face gear bar, there is the pair of lamina gear sleeve outside, the face gear bar is meshed with cogging of double-layer gear, the lower gear of double-layer gear is meshed with bent gear, one end of bent gear is connected with handle by a fixed screw, the other end is connected with back-moving spring, double-layer gear and bent gear all are fixed on holder, except being provided with rule, also have dead bolt on holder, dead bolt is mainly to increase steady that the face gear bar rotates; Bent gear axle back and forth movement centered by screw drives double-layer gear and rotates, and the upper wheel disc of double-layer gear drives the face gear bar and moves up and down, and makes coupled piston back-and-forth movement, and the air-flow in sleeve is by the regular air inlet of automatic air valve and exhaust.Air inlet port is connected with the pre-buried beam tube in goaf, and the gas outlet can connect the gas production bag, also can directly close the valve of giving vent to anger the gas sample is directly measured, thereby form a complete gas sample acquisition process.Barrel end is except these two air inlet/outlets, also have another interface to be connected with multi-parameter through valve, in needs are surveyed the goaf during gas sample ingredient, close the valve on two other interface, open the upper valve of this interface, the gas sample is communicated with multi-parameter, gas sample ingredient and content are measured.Simultaneously can change gas sample density by the volume of gas sample in the demonstration compression sleeve of rule, detect the micro-concentrations in the gas sample ingredient, reach early prediction and heat up with identification goaf oxidation of coal; So direct gas sample acquisition is also measured, and has avoided gas the belt transect loss of gas sample and sneaking into of ambient atmos in the surface process have also been improved the accuracy of testing simultaneously.
3, technique effect
From the above mentioned, apparatus of the present invention are to adopt full mechanical realization manual mode to carry out gas sample acquisition, by moment, transmit power according to gear, and compact conformation is solid, and stable drive is laborsaving; Simultaneously automatically air valve opens and closes rapidly, small volume and less weight, and durable, operation is very easy, under coal mine in limited space, the single extraction gas sample of just can carrying out.And close valve on the air inlet/outlet pipeline, open the valve that is connected with measuring instrument, can directly read composition and the content of conventional gas sample, efficient and convenient, the error of avoiding gathering the loss of gas sample gas sample in the surface process and sneaking into of ambient atmos and bringing improves the accuracy of test.During apart from the pre-buried beam tube in goaf, because negative pressure in beam tube is large, gather gas sample difficulty in the goaf for long, can be according to actual needs, lengthen decreased food increase moment and laborsaving, flexible, simple to operate; Use this sampling apparatus, not only can be used in goaf coal spontaneous combustion gas sample acquisition and incipient fire Forecasting recognition, also can be used for gas drainage under suction gas sample ingredient fast detecting, especially be fit to observation and the division of goaf coal spontaneous combustion three bands.
Four, description of drawings
Fig. 1 is the general structure schematic diagram of apparatus of the present invention.Sleeve 9, piston 7, face gear bar 8, double-layer gear 11, bent gear 10, dead bolt 12, back-moving spring 13, holder 14, rule 15, valve 2, valve 3, valve 18, steel ball 5, spring 4, auto-admission pipe 1, automatic escape pipe 23, multi-parameter 24 are wherein arranged.
Fig. 2 is auto-admission pipe 23 structural representations.
Five, the specific embodiment
Embodiment 1:
A kind of gas sample acquisition and analysis device for coal mine gob, formed by gas sample acquisition part and multi-parameter, be that gas sample acquisition is partly a sleeve, be installed on piston in sleeve, this piston is connected with the face gear bar, the pinion of the outer double-layer gear of face gear bar and sleeve connects engagement, the gear wheel of double-layer gear is meshed with bent gear, drive double-layer gear when making bent gear do clockwise motion by handle and also clockwise rotate, the face gear bar was driven by the steamboat of double-layer gear and outwards did the action of bleeding this moment; Admission valve is opened valve automatically under the effect of inside and outside differential pressure enter in sleeve the gas sample.
Embodiment 2:
After device is finished the action of bleeding, spring will recover deformation, pull bent gear to return counterclockwise, thereby bent gear driven double-layer gear is also done counterclockwise motion, double-layer gear is pushing away the face gear bar and is moving downward, admission valve is because of the differential pressure action autoshutdown, and air outlet valve is opened automatically simultaneously, completes exhaust process.
Embodiment 3:
Gas sample collecting device for air is before collection analysis gas sample, air inlet pipe is connected with the beam tube that is embedded in the goaf, escape pipe is emptying, first through the exhaust process of repeatedly bleeding, device self is reached original gas discharge in the beam tube that is connected, then connect the gas production bag at escape pipe, then exhaust sample again, until the gas production bag is adopted full gas sample for this reason.
Embodiment 4:
Gas sample collecting device for air is before collection analysis gas sample, air inlet pipeline is connected with the beam tube that is embedded in the goaf, and escape pipe is emptying, first through the exhaust process of repeatedly bleeding, after in device self and the beam tube that is connected, original gas is discharged, close the valve on outlet pipe, and then once bleed, after exhausting the gas sample, close the air inlet pipeline valve, open the valve on the multi-parameter pipeline, wait the gas sample stable, just can directly measure gas sample composition and content in sleeve by multi-parameter.
Claims (5)
1. gas sample acquisition and analysis device for coal mine gob, partly, automatically passing in and out gas part and multi-parameter (24) by gas sample acquisition is formed, wherein gas sample acquisition partly includes sleeve (9), piston (7), face gear bar (8), double-layer gear (11) is with the bent gear (10) of handle; It is characterized in that gas sample acquisition is partly a sleeve (9), be installed on piston (7) in sleeve (9), and mesh by the pinion of the outer double-layer gear (11) of face gear bar (8) and sleeve (9), intermeshing with the gear wheel of double-layer gear (11) under the staggered effect of bent gear (10) by handle (17) and back-moving spring (13), form the gas sample acquisition part.
2. gas sample acquisition and analysis device for coal mine gob according to claim 1, it is characterized in that automatically passing in and out the gas part is comprised of auto-admission pipe (23) and automatic escape pipe (1), the aperture of auto-admission pipe (23) is bellmouth mouth (22), steel ball (21) and spring (20) are arranged in pipe, and what be connected with sleeve (9) has a by-pass valve control (18); Automatically in escape pipe (1) pipe, steel ball (5) and spring (4) are arranged, what be connected with sleeve (9) is bellmouth mouth (6), is connected with valve (2) simultaneously, forms turnover gas part automatically.
3. gas sample acquisition and analysis device for coal mine gob according to claim 1, is characterized in that the gear of face gear bar (8) wants the pinion of complete and double-layer gear (11) to mesh at grade; The gear of bent gear (10) and the gear wheel of double-layer gear (11) mesh at grade.
4. down-hole gas detection in coal mine sample acquisition and analysis device according to claim 1, it is characterized in that three interfaces of sleeve (9) end are triangular shape and distribute, two interfaces in the outside are automatically to pass in and out tracheae, intermediary interface is connected with multi-parameter (24) through valve (3), forms multi-parameter gas sample ingredient and measures system.
5. down-hole gas detection in coal mine sample acquisition and analysis device according to claim 1, it is characterized in that double-layer gear (11) and bent gear (10) are fixed on holder (14), there is rule (15) holder (14) lower end, reads the interior gas sample of sleeve (9) volume by handle (17) and rule (15); Face gear bar (8) is fixed by the dead bolt (12) on holder (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101298110A CN101839130B (en) | 2009-03-19 | 2009-03-19 | Gas sample acquisition and analysis device for coal mine gob |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101298110A CN101839130B (en) | 2009-03-19 | 2009-03-19 | Gas sample acquisition and analysis device for coal mine gob |
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| Publication Number | Publication Date |
|---|---|
| CN101839130A CN101839130A (en) | 2010-09-22 |
| CN101839130B true CN101839130B (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101298110A Expired - Fee Related CN101839130B (en) | 2009-03-19 | 2009-03-19 | Gas sample acquisition and analysis device for coal mine gob |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104948167B (en) * | 2015-07-15 | 2018-03-13 | 贵州盘江精煤股份有限公司 | A kind of method of observation single hole gas density after return airway high position drill site is closed |
| CN112049791A (en) * | 2020-09-22 | 2020-12-08 | 西南石油大学 | Plunger of oil-well pump without traveling valve |
| CN113818841B (en) * | 2021-09-22 | 2023-04-18 | 华北科技学院(中国煤矿安全技术培训中心) | Triaxial loaded gas drainage simulation platform |
| CN115792118A (en) * | 2022-12-01 | 2023-03-14 | 应急管理部研究中心 | Gas sample collecting and analyzing device for coal mine underground goaf |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2106639A (en) * | 1981-09-22 | 1983-04-13 | Coal Ind | Method and apparatus for determining gas flow rate |
| FR2852387A1 (en) * | 2003-03-10 | 2004-09-17 | Saint Louis Inst | Land mine detection probe has hollow rod fitted with removable and interchangeable core that can be replaced by optical fibers |
| CN1542257A (en) * | 2003-04-30 | 2004-11-03 | 淮南矿业(集团)有限责任公司 | Multiple upper protective-seam gas burst-preventing exploitation method used in the exploitation of coal seams |
| CN1562416A (en) * | 2004-04-07 | 2005-01-12 | 聂绍春 | Fire fighting method of feeding gas of carbon dioxide into roadways in mine |
| CN1700041A (en) * | 2005-05-18 | 2005-11-23 | 李建 | Application of ultra-low frequency geological remote sensing and detecting device in mash gas detection |
| KR100551246B1 (en) * | 2004-11-18 | 2006-02-09 | 한국지질자원연구원 | Sensor apparatus for measuring gas in heap of mine-waste matter |
| CN201763345U (en) * | 2009-03-19 | 2011-03-16 | 河南理工大学 | Gas sample collecting and analyzing device in underground gob area of coal mine |
-
2009
- 2009-03-19 CN CN2009101298110A patent/CN101839130B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2106639A (en) * | 1981-09-22 | 1983-04-13 | Coal Ind | Method and apparatus for determining gas flow rate |
| FR2852387A1 (en) * | 2003-03-10 | 2004-09-17 | Saint Louis Inst | Land mine detection probe has hollow rod fitted with removable and interchangeable core that can be replaced by optical fibers |
| CN1542257A (en) * | 2003-04-30 | 2004-11-03 | 淮南矿业(集团)有限责任公司 | Multiple upper protective-seam gas burst-preventing exploitation method used in the exploitation of coal seams |
| CN1562416A (en) * | 2004-04-07 | 2005-01-12 | 聂绍春 | Fire fighting method of feeding gas of carbon dioxide into roadways in mine |
| KR100551246B1 (en) * | 2004-11-18 | 2006-02-09 | 한국지질자원연구원 | Sensor apparatus for measuring gas in heap of mine-waste matter |
| CN1700041A (en) * | 2005-05-18 | 2005-11-23 | 李建 | Application of ultra-low frequency geological remote sensing and detecting device in mash gas detection |
| CN201763345U (en) * | 2009-03-19 | 2011-03-16 | 河南理工大学 | Gas sample collecting and analyzing device in underground gob area of coal mine |
Non-Patent Citations (1)
| Title |
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| 采空区遗煤温度及气样参数的回归分析模型;胡越; 马韵新; 原保全;《焦作大学学报》;19990630(第2期);第75-77页 * |
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| CN101839130A (en) | 2010-09-22 |
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