CN201358815Y - Gas concentration flowmeter for coal-mine gas drainage - Google Patents
Gas concentration flowmeter for coal-mine gas drainage Download PDFInfo
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- CN201358815Y CN201358815Y CNU2008201701969U CN200820170196U CN201358815Y CN 201358815 Y CN201358815 Y CN 201358815Y CN U2008201701969 U CNU2008201701969 U CN U2008201701969U CN 200820170196 U CN200820170196 U CN 200820170196U CN 201358815 Y CN201358815 Y CN 201358815Y
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Abstract
The utility model relates to a gas concentration flowmeter for coal-mine gas drainage. The concentration flowmeter comprises a shell, which is provided with a flow sensor, a temperature sensor, a pressure sensor, a concentration sensor and a flow integrating meter. The concentration flowmeter is characterized in that the concentration sensor, the pressure sensor and the temperature sensor are arranged in the same chamber of the shell, the parameters acquired by the four sensors are respectively displayed on the display screen of the flow integrating meter, and an vortex maker and an vortex eliminator are arranged in the chamber of the shell. The concentration sensor is mounted in the expanded section of the shell, and the vortex maker and the vortex eliminator are respectively arranged at the inlet and outlet of the chamber of the shell. The structure of the concentration flowmeter is simple and compact, measurement and monitoring are direct, and mounting and maintenance are convenient. The utility model solves the following technical problems: the prior four sensors cannot be arranged in the same shell, and the vortex precession flowmeter cannot be integrated with the methane concentration sensor. The utility model is suitable to be used to measure and monitor gas concentration and flow parameters in the process of coal-mine gas drainage.
Description
Technical field
The utility model relates to a kind of gas (methane) concentration flow meter of gas discharge in mine.
Background technology
Coal is the main energy sources of China, accounts for more than 70% of primary energy.Coal resources in China is very abundant, and distributed areas are wide, but the coal seam geological condition more complicated, the mine natural calamity is many, mainly is the outstanding and blast of gas.Therefore, country has proposed 12 word policies of " take out afterwards earlier adopt, with wind fixed output quota, monitoring " comprehensive regulation gas disaster aspect safety of coal mines.Analyze from technological layer, realize this " 12 word " policy, at first to carry out monitoring to concentration, pressure, temperature, flow and the explosion limit of gas, secondly (main component is a methane to the gas in the coal bed gas, contain more than 80%) be a kind of real natural gas, a kind of high-grade fuel (1m
3Pure gas is equivalent to 1kg gasoline or is equivalent to that the 1.21kg standard coal-7000cal/kg), economic worth is very big, therefore need measure; At present, the domestic sensor of using when gas drainage under suction all is separate use, independent installation, the independent monitoring, mainly be concentration sensor (containing warning), temperature pick up, pressure sensor, standard orifice plate, this has not only increased investment, also strengthened the efficient of plant maintenance and reduction underground work, security performance is lower, and the monitoring difficulty increases; On the other hand, flow, temperature and pressure that domestic existing two probe precession vortex flowmeters can only measurement gas, can't measurement gas in the concentration of contained methane.
Summary of the invention
For overcoming above-mentioned deficiency, the purpose of this utility model is the gas density flow meter that provides a kind of gas discharge in mine to use to coal industry, makes it can solve the technical problem that original four kinds of separate measurements of sensor, independent displaying and two probe precession vortex flowmeter can not integrate with the methane concentration meter.The purpose of this utility model is to be achieved through the following technical solutions.
The gas density flow meter that a kind of gas discharge in mine is used, this concentration flow meter comprises housing, be provided with the inductor of four kinds of functions, be flow transmitter, temperature pick up, pressure sensor, concentration sensor, and flow integrator, its main points are that concentration sensor, pressure sensor and temperature pick up are arranged in the cavity of same housing, and four kinds of parameters that sensor collected are presented at respectively on the display screen of flow integrator.Described concentration sensor is installed on the expanding reach place of housing; The cavity of housing has been provided with the whirlpool device and the whirlpool device that disappears, and plays the import and export two ends that the whirlpool device and the whirlpool device that disappears are separately positioned on the housing cavity.Gas concentration sensor is installed in a whirlpool device of two probes and disappears between the whirlpool device, and the expanding reach of precession vortex flowmeter cavity is presented on the same display screen of flow integrator its parameter that records.
The gas density flow meter that a kind of gas discharge in mine is used, this concentration flow meter comprises housing, be provided with the inductor of four kinds of functions, be flow transmitter, temperature pick up, pressure sensor, concentration sensor, and flow integrator, the main points of its another design scheme are temperature pick up and pressure sensors or select and choose in the cavity of housing.Other function setting (referring to Fig. 1) same as described above helps user's ordering products according to actual needs like this.
This gas density flow meter has concentration sensor, pressure sensor, temperature pick up and flow transmitter, it is surveyed obtaining in temperature, pressure, total flow and the cumulative volume amount of gas, also with concentration, flow and the volume of contained gas (methane) in the coal bed gas (or gas) that records.After the unified processing and computing of the signal that they collected through flow integrator, be presented on the same display screen, and constitute an integral body (being flow meter), have the function that various parameter teletransmissions are carried simultaneously with flow integrator.
The utility model is simple in structure, compact, and it is comparatively reasonable to design, and monitoring is direct, and installation, maintenance is convenient.Solved that original four sensors can not concentrate on the same housing and technical problem that the precession vortex flowmeter can not integrate with the sensing methane concentration device.Gas density when being applicable to the colliery extraction, the measurement of flow parameter and monitoring.
Description of drawings
Fig. 1 is a structural representation of the present utility model, and the arrow direction is a gas flow direction.
Fig. 2 is the structural representation that the utility model is set up pressure sensor and temperature pick up, and the arrow direction is a gas flow direction.
The specific embodiment
The utility model is mounted in the down-hole passage that records the coal bed gas methane concentration, or is arranged on the scene of operation, or needs the occasion of gas (methane) extraction and metering.Embodiment is in conjunction with shown in Figure 1, and the through hole at housing 1 middle part is provided with concentration sensor 3, and the electronic circuit of concentration sensor is connected with the electronic circuit of flow integrator 2 by the housing linkage section, and concentration signal is fed back on the display screen.Play the entrance point that whirlpool device 5 is fixedly connected on housing cavity gas flow direction, when the gas that contains gas (methane) flows to the entrance point of housing 1 cavity by flow direction, play a whirlpool device 5 and will induce gas to flow out the port of export along the housing flow direction.The whirlpool device 4 that disappears is fixedly connected on the port of export of housing cavity gas flow direction.Fig. 2 sets up pressure sensor 7, temperature pick up 6 at the through hole at housing 1 middle part, pressure sensor, temperature pick up are fixedly connected on the housing cavity, the electronic circuit of these two elements is connected with the electronic circuit of flow integrator 2 by the housing linkage section, and pressure sensor signal, temperature signal are fed back on the display screen.Flow out housing through pressure sensor 7, concentration sensor 3, temperature pick up 6.That is to say, above-mentioned described concentration, temperature, signal that pressure sensor collected through electronic circuit amplification, processing, computing after, directly be presented on the display screen of flow integrator 2, and export various parameters by the communication function of flow integrator; When the concentration of methane (gas) surpasses setting value or explosion limit, on the display screen of flow integrator, with flicker display light signal or send the song of security alarm.
Claims (2)
1, the gas density flow meter used of a kind of gas discharge in mine, this concentration flow meter comprises housing, be provided with the inductor of four kinds of functions, be flow transmitter, temperature pick up, pressure sensor, concentration sensor, and flow integrator, it is characterized in that concentration sensor (3), pressure sensor (7) and temperature pick up (6) are arranged in the cavity of same housing (1), four kinds of parameters that sensor collected are presented at respectively on the display screen of flow integrator (2), and described concentration sensor (3) is installed on the expanding reach place of housing (1); The cavity of housing has been provided with whirlpool device (5) and the whirlpool device (4) that disappears, and plays the import and export two ends that the whirlpool device and the whirlpool device that disappears are separately positioned on housing (1) cavity.
2, the gas density flow meter used of a kind of gas discharge in mine, this concentration flow meter comprises housing, be provided with the inductor of four kinds of functions, be flow transmitter, temperature pick up, pressure sensor, concentration sensor, and flow integrator, it is characterized in that in the cavity of housing (1) temperature pick up (6) and pressure sensor (7) or select one and choose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201701969U CN201358815Y (en) | 2008-12-12 | 2008-12-12 | Gas concentration flowmeter for coal-mine gas drainage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201701969U CN201358815Y (en) | 2008-12-12 | 2008-12-12 | Gas concentration flowmeter for coal-mine gas drainage |
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| Publication Number | Publication Date |
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| CN201358815Y true CN201358815Y (en) | 2009-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201701969U Expired - Fee Related CN201358815Y (en) | 2008-12-12 | 2008-12-12 | Gas concentration flowmeter for coal-mine gas drainage |
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| CN (1) | CN201358815Y (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261241A (en) * | 2010-05-25 | 2011-11-30 | 淮南矿业(集团)有限责任公司 | Device and method for measuring signal hole in mine gas extraction system |
| CN102296981A (en) * | 2010-06-22 | 2011-12-28 | 淮南矿业(集团)有限责任公司 | Mine gas extraction and outburst elimination processing system |
| CN102312678A (en) * | 2010-07-08 | 2012-01-11 | 淮南矿业(集团)有限责任公司 | Digital blow-out preventing extraction on-line monitoring system for coal mine |
| CN102373956A (en) * | 2010-08-17 | 2012-03-14 | 淮南矿业(集团)有限责任公司 | Coal extraction single-hole monitoring method |
| CN102788622A (en) * | 2012-07-31 | 2012-11-21 | 河南汉威电子股份有限公司 | Target gas metering gas meter and target gas metering method thereof |
| CN102798424A (en) * | 2012-09-07 | 2012-11-28 | 河南汉威电子股份有限公司 | Target gas gauge |
| CN102809397A (en) * | 2012-07-31 | 2012-12-05 | 河南汉威电子股份有限公司 | Target gas metering prepayment gas meter and target gas metering method thereof |
| CN103148900A (en) * | 2012-12-04 | 2013-06-12 | 山东迪泽仪表科技有限公司 | Natural gas trade flow meter |
| CN103267545A (en) * | 2013-05-17 | 2013-08-28 | 杭州冠一流体技术有限公司 | Procession vortex flow meter |
| CN104034372A (en) * | 2014-06-12 | 2014-09-10 | 杭州冠一流体技术有限公司 | Density correction type multi-parameter flowmeter and density correction method |
| CN104133048A (en) * | 2014-08-01 | 2014-11-05 | 淮南润成科技股份有限公司 | Gas extraction-exhaust multiparameter monitoring device for mine |
| CN104266690A (en) * | 2014-10-11 | 2015-01-07 | 杭州冠一流体技术有限公司 | Integrating instrument circuit of differential pressure flowmeter |
| CN104832157A (en) * | 2015-05-25 | 2015-08-12 | 开滦(集团)有限责任公司技术中心 | Outburst prediction and forecast device based on coal bed drilled hole gas parameter detection |
| CN108757007A (en) * | 2018-04-24 | 2018-11-06 | 山东科技大学 | A kind of drilling gas extraction pipeline aperture energy-saving control device and control method |
| CN108955780A (en) * | 2018-09-07 | 2018-12-07 | 广州南控自动化设备有限公司 | Turbine flowmeter capable of detecting gas quality |
-
2008
- 2008-12-12 CN CNU2008201701969U patent/CN201358815Y/en not_active Expired - Fee Related
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261241A (en) * | 2010-05-25 | 2011-11-30 | 淮南矿业(集团)有限责任公司 | Device and method for measuring signal hole in mine gas extraction system |
| CN102261241B (en) * | 2010-05-25 | 2013-11-20 | 淮南矿业(集团)有限责任公司 | Device and method for measuring signal hole in mine gas extraction system |
| CN102296981A (en) * | 2010-06-22 | 2011-12-28 | 淮南矿业(集团)有限责任公司 | Mine gas extraction and outburst elimination processing system |
| CN102296981B (en) * | 2010-06-22 | 2014-05-14 | 淮南矿业(集团)有限责任公司 | Mine gas extraction and outburst elimination processing system |
| CN102312678A (en) * | 2010-07-08 | 2012-01-11 | 淮南矿业(集团)有限责任公司 | Digital blow-out preventing extraction on-line monitoring system for coal mine |
| CN102373956A (en) * | 2010-08-17 | 2012-03-14 | 淮南矿业(集团)有限责任公司 | Coal extraction single-hole monitoring method |
| CN102788622B (en) * | 2012-07-31 | 2014-04-16 | 河南汉威电子股份有限公司 | Target gas metering gas meter and target gas metering method thereof |
| CN102788622A (en) * | 2012-07-31 | 2012-11-21 | 河南汉威电子股份有限公司 | Target gas metering gas meter and target gas metering method thereof |
| CN102809397A (en) * | 2012-07-31 | 2012-12-05 | 河南汉威电子股份有限公司 | Target gas metering prepayment gas meter and target gas metering method thereof |
| CN102809397B (en) * | 2012-07-31 | 2014-07-02 | 河南汉威电子股份有限公司 | Target gas metering prepayment gas meter and target gas metering method thereof |
| CN102798424A (en) * | 2012-09-07 | 2012-11-28 | 河南汉威电子股份有限公司 | Target gas gauge |
| CN102798424B (en) * | 2012-09-07 | 2014-07-02 | 河南汉威电子股份有限公司 | Target gas gauge |
| CN103148900A (en) * | 2012-12-04 | 2013-06-12 | 山东迪泽仪表科技有限公司 | Natural gas trade flow meter |
| CN103267545A (en) * | 2013-05-17 | 2013-08-28 | 杭州冠一流体技术有限公司 | Procession vortex flow meter |
| CN103267545B (en) * | 2013-05-17 | 2016-01-13 | 杭州冠一流体技术有限公司 | Precession spiral flowmeter |
| CN104034372A (en) * | 2014-06-12 | 2014-09-10 | 杭州冠一流体技术有限公司 | Density correction type multi-parameter flowmeter and density correction method |
| CN104133048A (en) * | 2014-08-01 | 2014-11-05 | 淮南润成科技股份有限公司 | Gas extraction-exhaust multiparameter monitoring device for mine |
| CN104266690A (en) * | 2014-10-11 | 2015-01-07 | 杭州冠一流体技术有限公司 | Integrating instrument circuit of differential pressure flowmeter |
| CN104266690B (en) * | 2014-10-11 | 2017-05-24 | 杭州冠一流体技术有限公司 | Integrating instrument circuit of differential pressure flowmeter |
| CN104832157A (en) * | 2015-05-25 | 2015-08-12 | 开滦(集团)有限责任公司技术中心 | Outburst prediction and forecast device based on coal bed drilled hole gas parameter detection |
| CN108757007A (en) * | 2018-04-24 | 2018-11-06 | 山东科技大学 | A kind of drilling gas extraction pipeline aperture energy-saving control device and control method |
| CN108757007B (en) * | 2018-04-24 | 2019-09-27 | 山东科技大学 | An energy-saving control device and control method for the orifice of a borehole gas drainage pipeline |
| CN108955780A (en) * | 2018-09-07 | 2018-12-07 | 广州南控自动化设备有限公司 | Turbine flowmeter capable of detecting gas quality |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20171212 |