CN203430573U - Portable coal mine underground gas extraction parameter detection device - Google Patents
Portable coal mine underground gas extraction parameter detection device Download PDFInfo
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- CN203430573U CN203430573U CN201320459401.4U CN201320459401U CN203430573U CN 203430573 U CN203430573 U CN 203430573U CN 201320459401 U CN201320459401 U CN 201320459401U CN 203430573 U CN203430573 U CN 203430573U
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Abstract
The utility model discloses a portable coal mine underground gas extraction parameter detection device, which comprises a PVC (polyvinyl chloride) gas extraction pipe main pipeline, wherein PVC gas extraction pipe fast joints are respectively arranged at the two ends of the PVC gas extraction pipe main pipeline, and a pore plate flow rate mater branch path and a flow guide pipe branch pipe are connected in parallel between the two fast joints. The portable coal mine underground gas extraction parameter detection device is matched with a differential pressure gauge and a gas integral parameter test instrument, the flow rate, the concentration, the negative pressure and the temperature testing of any one underground gas extraction drilling single pore or pore group can be realized, and meanwhile, the accuracy of the frequently-used gas integral parameter test instrument in site can also be corrected. The device has the characteristics that the accuracy is high, the structure is simple, the cost is low, the use is simple, convenient and fast, and the like. The device solves the problems that the underground extraction drilling single pore or partial pore group is not provided with a flow guide pipe, the testing on parameters of the flow rate, the concentration and the like cannot be realized. Therefore, the comprehensiveness, the accuracy and the reliability of the extraction parameter tests can be ensured.
Description
Technical field
The utility model relates to coal mine gas measuring technology.Specifically refer to when the parameter testing of coal mine down-hole drilling gas pumping, support the use with gas drainage under suction comprehensive parameters analyzer, optics watt inspection instrument, U-shaped differential manometer, have advantages of simple in structure, with low cost, easy and simple to handle, solve extraction borehole single hole or part Kong Zuwei mozzle is installed, cannot realize the parameter effect expedition shortcomings such as flow, concentration, ensure accuracy and the reliability of extraction parameter testing.
Background technology
Development along with coal industry, mine quantity and coal production increase sharply, mine is in deep extension process, some low gaseous mines become highly gassy mine and projecting mine, coal seam gas-bearing capacity increases gradually, coal-bed gas pressure increases, and causes gas accident to take place frequently, and has become the bottleneck that restriction mine safety status takes a turn for the better.Therefore, gas control is the top priority of current Safety Work in Colliery.Gas pumping to take precautions against gas accident have take away the firewood under the cauldron, the effect that effects a permanent cure in source, be basic, the key measure of Safety of Coal Mine Production.At present, mine adopts construction extraction borehole more, and the gas pumping manifold of these borings is always connected on extraction bye-pass, with the gas pumping pump mash gas extraction of high negative pressure, after gas pumping is up to standard, then produces exploitation.In gas pumping process, need to test gas pumping parameter.Most mines adopt installs orifice flowmeter or mozzle on methane gas extraction pipeline, utilizes orifice flowmeter or comprehensive gas parameter determinator to measure concentration, flow, the negative pressure in extraction pipeline, could evaluate gas pumping amount.But down-hole extraction borehole single hole or part hole group are installed orifice flowmeter or mozzle cost is higher, and adopt the measurement of comprehensive gas parameter determinator to have error, the new measurement that invention overcomes above-mentioned shortcoming becomes very necessary problem.
Summary of the invention
The purpose of this utility model is to solve the above-mentioned technical problem existing in prior art, and a kind of portable coal mine underground gas extraction parameter detection device is provided.
For achieving the above object, the technical solution adopted in the utility model is as follows:
Portable coal mine underground gas extraction parameter detection device of the present utility model, comprise PVC gas pumping pipe main pipeline, at PVC gas pumping pipe main pipeline two ends, be respectively equipped with the snap joint of PVC gas pumping pipe, between two snap joint, parallel connection is provided with orifice flowmeter branch road and mozzle branch road, described mozzle is the tubular body identical with pipe-line system caliber, in tubular body wall, be provided with four energy and the matching used measured hole of gas drainage under suction comprehensive parameters analyzer, realize concentration, flow, negative pressure, temperature parameter mensuration; Described orifice flowmeter caliber is identical with pipe-line system caliber, can support the use with U-shaped differential manometer, realizes flow parameter and measures.
The utility model is preferably provided with ball valve I on abacus flow meter branch road, and orifice flowmeter is connected by PVC gas pipe pipe collar with PVC gas pumping pipe main pipeline.
In the utility model, preferably on mozzle branch road, be provided with ball valve II, mozzle is connected by PVC gas pipe pipe collar with PVC gas pumping pipe main pipeline.
The utility model is preferably equipped with the dual anti-flexible pipe of resistance to negative pressure between two snap joints and PVC gas pumping pipe main pipeline.
The utility model coordinates differential manometer and comprehensive gas parameter determinator can realize underground gas extraction hole flow, concentration, negative pressure, the temperature test of arbitrary single hole or hole group, the accuracy that simultaneously also can proofread on-the-spot conventional comprehensive gas parameter determinator.This device has high, simple in structure, with low cost, the easy to use feature such as quick of the degree of accuracy, solve extraction borehole single hole or part Kong Zuwei installation mozzle under coal mine, the parameter testings such as flow, concentration be cannot realize, thereby comprehensive, accuracy and the reliability of extraction parameter testing ensured.
Accompanying drawing explanation
Fig. 1 is portable coal mine underground gas extraction parameter detection device structural representation.
The specific embodiment
Portable coal mine underground gas extraction parameter detection device of the present utility model, comprise PVC gas pumping pipe main pipeline 5, PVC gas pumping pipe main pipeline 5 is identical with hole pumping and mining pipe caliber, adopt PVC flame-retardant and anti-static material, at PVC gas pumping pipe main pipeline two ends, be respectively equipped with PVC gas pumping pipe snap joint 9-A and 9-B, can be connected fast with hole pumping and mining pipe, guarantee tightness.Between two snap joints and PVC gas pumping pipe main pipeline, be equipped with the dual anti-flexible pipe of resistance to negative pressure 10.
Between two snap joint, parallel connection is provided with orifice flowmeter branch road and mozzle branch road, is provided with ball valve I 8-B on abacus flow meter branch road 5, and orifice flowmeter 3 is connected by PVC gas pipe pipe collar 4 with PVC gas pumping pipe main pipeline.Described orifice flowmeter caliber is identical with pipe-line system caliber, can support the use with U-shaped differential manometer, realizes flow parameter and measures.
On mozzle branch road, be provided with ball valve II 8-A, mozzle 2 is connected by PVC gas pipe pipe collar with PVC gas pumping pipe main pipeline.Described mozzle is the tubular body identical with pipe-line system caliber, is provided with four energy and the matching used measured hole of gas drainage under suction comprehensive parameters analyzer in tubular body wall, realizes concentration, flow, negative pressure, temperature parameter mensuration.
implementation step is as follows:
1,, according to the size of down-hole drainage tube, select supporting portable coal mine underground gas extraction parameter detection device.
2, PVC gas pumping pipe snap joint A end is connected on drilling gas drainage tube, B end is connected on extraction bye-pass, portable coal mine underground gas extraction parameter detection device pipe-line system is connected with extraction system, and guarantee airtight air tight.
3, open ball valve II 8-A, close ball valve I 8-B, utilize gas drainage under suction comprehensive parameters analyzer to be connected to mozzle 2, detect temperature, negative pressure, concentration, the flow of extraction pipeline, and record.
4, open ball valve I 8-B, close ball valve II 8-A, high negative pressure gas sampler and an optics watt inspection instrument are connected to orifice flowmeter 3, detect the concentration of extraction pipeline.
5, open ball valve I 8-B, close ball valve II 8-A, U-shaped differential manometer is connected to orifice flowmeter 3, record U-shaped differential manometer pressure reduction, calculate the flow of extraction pipeline.
The concentration flow contrast that concentration, flow and the gas drainage under suction comprehensive parameters analyzer of the extraction pipeline 6, detecting according to orifice flowmeter 3 detects, verification gas drainage under suction comprehensive parameters analyzer detects the accuracy of data, to check in time gas drainage under suction comprehensive parameters analyzer.
Claims (4)
1. a portable coal mine underground gas extraction parameter detection device, it is characterized in that: comprise PVC gas pumping pipe main pipeline, at PVC gas pumping pipe main pipeline two ends, be respectively equipped with the snap joint of PVC gas pumping pipe, between two snap joint, parallel connection is provided with orifice flowmeter branch road and mozzle branch road, described mozzle is the tubular body identical with pipe-line system caliber, in tubular body wall, be provided with four energy and the matching used measured hole of gas drainage under suction comprehensive parameters analyzer, realize concentration, flow, negative pressure, temperature parameter mensuration; Described orifice flowmeter caliber is identical with pipe-line system caliber, can support the use with U-shaped differential manometer, realizes flow parameter and measures.
2. portable coal mine underground gas extraction parameter detection device according to claim 1, is characterized in that: on abacus flow meter branch road, be provided with ball valve I, orifice flowmeter is connected by PVC gas pipe pipe collar with PVC gas pumping pipe main pipeline.
3. portable coal mine underground gas extraction parameter detection device according to claim 1, is characterized in that: on mozzle branch road, be provided with ball valve II, mozzle is connected by PVC gas pipe pipe collar with PVC gas pumping pipe main pipeline.
4. portable coal mine underground gas extraction parameter detection device according to claim 1, is characterized in that: between two snap joints and PVC gas pumping pipe main pipeline, be equipped with the dual anti-flexible pipe of resistance to negative pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320459401.4U CN203430573U (en) | 2013-07-30 | 2013-07-30 | Portable coal mine underground gas extraction parameter detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320459401.4U CN203430573U (en) | 2013-07-30 | 2013-07-30 | Portable coal mine underground gas extraction parameter detection device |
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| CN203430573U true CN203430573U (en) | 2014-02-12 |
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| CN201320459401.4U Expired - Fee Related CN203430573U (en) | 2013-07-30 | 2013-07-30 | Portable coal mine underground gas extraction parameter detection device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969802A (en) * | 2017-05-16 | 2017-07-21 | 中煤科工集团重庆研究院有限公司 | A kind of portable gas explosion extraction pipeline gas parameter determines device and method |
| CN107701221A (en) * | 2017-09-30 | 2018-02-16 | 河南理工大学 | A kind of high negative pressure pipeline gas extraction metering device and its application method |
| CN109540792A (en) * | 2018-10-08 | 2019-03-29 | 煤科集团沈阳研究院有限公司 | Methane gas extraction pipeline methane concentration detection device |
| CN110359948A (en) * | 2019-08-01 | 2019-10-22 | 煤科集团沈阳研究院有限公司 | Porous pumping single hole gas drainage parameter touring sorting device and method automatically |
| CN110595550A (en) * | 2019-10-08 | 2019-12-20 | 霍州煤电集团有限责任公司 | Coal mine gas drainage pipeline gas flow parameter measuring device |
-
2013
- 2013-07-30 CN CN201320459401.4U patent/CN203430573U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969802A (en) * | 2017-05-16 | 2017-07-21 | 中煤科工集团重庆研究院有限公司 | A kind of portable gas explosion extraction pipeline gas parameter determines device and method |
| CN106969802B (en) * | 2017-05-16 | 2023-07-18 | 中煤科工集团重庆研究院有限公司 | Portable gas parameter measuring device and method for gas drainage pipeline |
| CN107701221A (en) * | 2017-09-30 | 2018-02-16 | 河南理工大学 | A kind of high negative pressure pipeline gas extraction metering device and its application method |
| CN109540792A (en) * | 2018-10-08 | 2019-03-29 | 煤科集团沈阳研究院有限公司 | Methane gas extraction pipeline methane concentration detection device |
| CN110359948A (en) * | 2019-08-01 | 2019-10-22 | 煤科集团沈阳研究院有限公司 | Porous pumping single hole gas drainage parameter touring sorting device and method automatically |
| CN110359948B (en) * | 2019-08-01 | 2024-04-12 | 中煤科工集团沈阳研究院有限公司 | Automatic tour sorting device and method for multi-hole combined extraction single-hole gas extraction parameters |
| CN110595550A (en) * | 2019-10-08 | 2019-12-20 | 霍州煤电集团有限责任公司 | Coal mine gas drainage pipeline gas flow parameter measuring device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20170730 |
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| CF01 | Termination of patent right due to non-payment of annual fee |