CN201496105U - Colliery safety monitoring system - Google Patents
Colliery safety monitoring system Download PDFInfo
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- CN201496105U CN201496105U CN2009203093290U CN200920309329U CN201496105U CN 201496105 U CN201496105 U CN 201496105U CN 2009203093290 U CN2009203093290 U CN 2009203093290U CN 200920309329 U CN200920309329 U CN 200920309329U CN 201496105 U CN201496105 U CN 201496105U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The utility model relates to a colliery safety monitoring system, which comprises a plurality of analog quantity measuring devices and an intelligent monitoring unit which is connected with each analog quantity measuring device, wherein the analog quantity measuring devices are used for an upper corner arranged on a coal-cutting working face in the colliery, a working face, a return-air lane, an air intake tunnel in the colliery, a return air tunnel or the coal-cutting working face or an excavating working face to detect methane or carbonic oxide gas concentration, and according to 'normal representative models of monitoring data' , the intelligent monitoring unit is a device of judging whether measured values of measured analog quantity accord with 'normal representative models of monitoring data' and of alarming when in discovering abnormal situations. The identification judgment of the utility model is characterized by establishing sensors 'normal representative models of monitoring data by non-transfinite principles', including the associated relation of measured values among a plurality of sensors and the relation of changes along with time, and not merely referring to sizes of simple concentration indexes.
Description
Technical field
The utility model relates to a kind of coal mine safety monitoring system.
Background technology
Coal mine safety monitoring system is widely used a kind of watch-dog in the colliery, is mainly used in various environment and equipment state under the monitoring coal mine, and the control of cutting off the power supply when finding gas exceeding limit is found to report to the police when other are unusual.Present coal mine safety monitoring system mainly is that value surpasses or is lower than certain value (being called overload alarm) to (CH4, CO, wind speed etc.) unusual method of discrimination of analog signals.It is distinguishing rule with the size of measured value merely that these methods all are based on single survey mark, and the other unusual (using unusual) in using for the mine supervision system can not be found.For example: Chinese patent application 200510017856.0 discloses a kind of method that a kind of mine gas prevention and control shows with the multisystem informix, it is characterized in that of the identification judging unit of Ti Chuing wherein: index system comprises gas density control index, threshold index, the CO concentration index of varying environment condition, target oxygen concentration, temperature index, wind speed index etc., this method belongs to the overload alarm method.The unusual model of Chinese patent application 200710113902.6 disclosed differentiations also belongs to conventional overload alarm pattern.
Therefore, how to find metrical information unusual (be not placed on the position of regulation as sensor, with foreign matter stop probe detect mouthful wait use unusual) situation, be the technical problem that this area will solve.
The utility model content
Technical problem to be solved in the utility model provides a kind of coal mine safety monitoring system, is used to find situation about not using in accordance with regulations, such as sensor be not placed on assigned position, stop that probe detects mouthful etc. and use with foreign matter unusual.
For solving the problems of the technologies described above, the utility model provides a kind of coal mine safety monitoring system, comprising:
A plurality of analog measurement devices are used for being arranged in upper corner, work plane and the return airway of colliery coal-face and the intake in the colliery, the return aircourse or coal-face or driving face, to detect the concentration of methane or CO gas; Be that the analog measurement device is that output valve is the methane transducer or the carbon monoxide transducer of analog signal.
With the intelligent monitoring unit that each analog measurement device links to each other, this intelligent monitoring unit is to judge the device that whether the analog measurement value of surveying meets " monitored data normally shows model " and report to the police according to " monitored data normally shows model " when noting abnormalities.
During this system works, earlier analog measurement value and measurement place are set up contact, and set up the analog measurement value and measure place pairing " monitored data normally shows model " (being the allowable value scope), whether the corresponding relation by analog measurement value and measurement place meets " monitored data normally shows model ", comes unusual circumstance and warning.Set up " monitored data normally shows model " of the non-principle that transfinites of sensor, comprise the incidence relation and the time dependent relation of measured value between a plurality of sensors, rather than the size of simple concentration index.
Further, described infield comprises upper corner, work plane and the return airway of coal-face in the colliery, also comprise air intake, return aircourse, described analog measurement value is meant the analog measurement value that methane or carbonomonoxide concentration are measured, and described " monitored data normally shows model " comprising: should there be the relation that is arranged in order from big to small in methane that described upper corner, work plane and return airway three places are recorded or carbonomonoxide concentration value.Methane or carbonomonoxide concentration value that methane that intake records or carbonomonoxide concentration value record greater than the return aircourse; For two work planes that adopt series ventilation, methane or carbonomonoxide concentration value that methane that early-stage work face records or carbonomonoxide concentration value record greater than downstream work plane correspondence position; If do not satisfy in the above-mentioned relation and reach Preset Time, just send warning.
Further, described infield comprises the tunnel everywhere in the colliery, and described " monitored data normally shows model " comprising: the sum of products of the measured methane in the tunnel, a downstream in colliery or the concentration value of carbon monoxide and air mass flow equals the fixed proportion of the sum of products of the concentration value of the measured methane in each tunnel, upstream or carbon monoxide and air mass flow.If do not satisfy this condition and reach Preset Time, just send warning; This fixed proportion is the air mass flow in the tunnel, described downstream and the ratio of the air mass flow sum in all tunnels, downstream.
Further, described infield comprises coal-face and the driving face in the colliery, described " monitored data normally shows model " comprising: in 2-3 cycle, the amplitude of variation of the measured value of the methane of survey mark or the concentration of carbon monoxide has at least and once reaches preset range, then is considered as normal; Otherwise be considered as unusual and warning.
Further, the maximum value of described preset range and minimum value are by the gas bearing capacity and the decision of used coal winning technology of institute's mining coal seam; The time span in this single cycle determines by coal winning technology, and it is blown out greater than twice or coal-winning machine leaves or the interval of a large amount of coal breakage work steps such as caving coal.
Further, the described cycle can be fixed, and also can be consistent but unfixed in time with the start-stop cycle of coal-winning machine, development machine.
The utlity model has positive effect: the monitoring method of coal mine safety monitoring system of the present utility model according to " the non-principle that transfinites " by setting up measurement value sensor " monitored data normally shows model ", incidence relation and time dependent relation that it comprises measured value between a plurality of sensors are not to make judgement according to the size of concentration index merely.Particularly, the utility model is set up contact with the analog measurement point and the coal mine environment condition of coal mine safety monitoring system, characteristics according to coal mine production system are set up " monitored data normally shows model ", whether meet " monitored data normally shows model " by the performance of checking the analog measurement data, come unusual circumstance.By this technology, can find the situation that the mine supervision system does not use in using in accordance with regulations, such as not with probe placement at assigned position, probe is artificially shielded or damage etc., it is unusual to find that production system occurs simultaneously.For the mine supervision system provides a kind of new unusual method of detection, enlarged the function of system, also further improved the reliability of system.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is the schematic diagram of the monitoring method of a kind of coal mine safety monitoring system of realization among the embodiment.
Fig. 2 is the schematic diagram that the another kind among the embodiment is realized a kind of monitoring method of coal mine safety monitoring system, and the arrow among the figure is a wind direction.
Fig. 3 is the structured flowchart of the coal mine safety monitoring system among the embodiment.
The specific embodiment
(embodiment 1)
See Fig. 3, a kind of coal mine safety monitoring system of the present utility model comprises:
A plurality of analog measurement devices are used for being arranged in upper corner, work plane and the return airway of colliery coal-face and the intake in the colliery, the return aircourse or coal-face or driving face, to detect the concentration of methane or CO gas;
With the intelligent monitoring unit that each analog measurement device links to each other, this intelligent monitoring unit is to judge the device that whether the analog measurement value of surveying meets " monitored data normally shows model " and report to the police according to " monitored data normally shows model " when noting abnormalities.
Intelligent monitoring unit comprises: telecommunication unit and remote monitoring computer that central control unit, the AD conversion unit that is used to be connected each analog measurement device that links to each other with described each analog measurement device, the warning device that links to each other with the warning output of central control unit, being used for of linking to each other with central control unit link to each other with the remote monitoring computer.
The monitoring method of above-mentioned coal mine safety monitoring system comprises: analog measurement value and measurement place are set up contact, and set up the analog measurement value and measure place pairing " monitored data normally shows model ", whether the corresponding relation by analog measurement value and measurement place meets " monitored data normally shows model ", comes unusual circumstance and warning.
Described infield comprises upper corner, work plane and the return airway in the colliery, described analog measurement value is meant the analog measurement value that methane or carbonomonoxide concentration are measured, and described " monitored data normally shows model " comprising: should there be the relation that is arranged in order from big to small in methane that described upper corner, work plane and return airway three places are recorded or carbonomonoxide concentration value.
See Fig. 1, coal-face should be provided with three sensors in accordance with regulations and (be separately positioned on the upper corner of stipulating in the rules of colliery, work plane, three positions of return airway), in the mine supervision system, adopt following method to realize the abnormal alarm function: to add position attribution respectively for above-mentioned three firedamp sensors that are arranged in coal-face when on the main frame of monitoring system, disposing firedamp sensor or carbon monoxide transducer, if being placed on the measured value of the sensor of upper corner is T0, the measured value that is placed on the sensor of work plane is T1, the measured value that is placed on the sensor of return airway is T2, then, should there be following relation: T0＞T2＞T1 according to " monitored data normally shows model ".The monitoring system main frame is differentiated the measured value of these three sensors, if the measured value of three sensors satisfies T0＞T2＞T1, then is considered as normal.If do not satisfy this condition and reach Preset Time (such as 1-3 minute), just send warning.
(embodiment 2)
On the basis of embodiment 1, present embodiment also has following distortion:
According to the relation of the distinguished and admirable formation upstream and downstream in the coal mine roadway, described " monitored data normally shows model " also comprises: the 1) methane that records of intake or the carbonomonoxide concentration value methane or the carbonomonoxide concentration value that should record greater than the return aircourse.2) adopt two work planes of series ventilation, methane or carbonomonoxide concentration value that methane that early-stage work face records or carbonomonoxide concentration value should record greater than downstream work plane correspondence position.
(embodiment 3)
On the basis of embodiment 1, present embodiment also has following distortion:
See Fig. 2, according to the relation of the distinguished and admirable formation upstream and downstream in the coal mine roadway, described " monitored data normally shows model " also comprises: the sum of products of the concentration value of measured methane or carbon monoxide and air mass flow equals the fixed proportion of the sum of products of the concentration value of methane measured in each tunnel, upstream (for example tunnel, upstream A1 and A2) or carbon monoxide and air mass flow in certain tunnel, downstream in colliery (for example tunnel, downstream A3).If do not satisfy this condition and reach Preset Time (such as 0.5-1.5 minute), just send warning.This fixed proportion is the air mass flow in the tunnel, described downstream and the ratio of the air mass flow sum in all tunnels, downstream.Owing to the air mass flow variation in each tunnel under the normal condition in the colliery is little, so can think in the implementation model that the flow in each tunnel is a fixed value.
For example, for tunnel, two downstreams is arranged, and have the colliery in tunnel, 3 upstreams, if the concentration value of the methane in tunnel, upstream 1 is 0.4%, air mass flow is 3 a cubes/per second; The concentration value of the methane in tunnel, upstream 2 is 0.5%, and air mass flow is 3 a cubes/per second; The concentration value of the methane in tunnel, upstream 3 is 0.6%, and air mass flow is 4 a cubes/per second; If the air mass flow in the tunnel, two downstreams is respectively 6 and 4 cubes/per second, then the concentration value of the methane in the tunnel, two downstreams should all be 0.51%.(above for not considering the situation that tunnel, downstream self methane normally appears, if in the tunnel, two downstreams self methane normally the amount of appearing be respectively 0.2 and 0.3 cube/per second, then the concentration value of the methane in the tunnel, two downstreams should be 0.543% and 0.585%).For the monitoring method of carbon monoxide, identical with methane.
(embodiment 4)
On the basis of embodiment 1 and 2, present embodiment also has following distortion:
The gas that (driving) work plane of mining is gushed out changes with the coal seam speed of peeling off, and the coal seam speed of peeling off is not uniformly in each circulation of great majority coal mining (driving) technology, changes so face gas content also is fluctuation.In the blasting process, the after gas content of at every turn blowing out can obviously raise, and gas bearing capacity can be lower before blowing out; Caving coal technology then can obviously raise at caving coal link gas bearing capacity; Even speed fully mechanized mining is relatively uniformly peeled off in the coal seam, coal-winning machine leaves and peels off speed with the stopping time coal seam and gas emission also has notable difference.
Described " monitored data normally shows model " also comprises: in 2-3 cycle, the amplitude of variation of the measured value of the methane of survey mark or the concentration of carbon monoxide has at least once in preset range, then is considered as normal; Otherwise be considered as unusual and warning.The time span in this single cycle is determined that by coal winning technology it is blown out greater than twice or coal-winning machine leaves or the interval of a large amount of coal breakage work steps of caving coal.
The maximum value of described preset range and minimum value are by the gas bearing capacity and used coal winning technology (generally being the coal amount of the peeling off) decision of institute's mining coal seam at every turn; Described maximum value and minimum value are set according to detected value after can detecting at the scene.
The monitoring system main frame is constantly differentiated the measured value of the sensor of this work plane, if the measured value of firedamp sensor satisfies described " monitored data normally shows model ", then is considered as normal.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection domain of the present utility model.
Claims (2)
1. coal mine safety monitoring system is characterized in that comprising:
A plurality of analog measurement devices are used for being arranged in upper corner, work plane and the return airway of colliery coal-face and the intake in the colliery, the return aircourse or coal-face or driving face, to detect the concentration of methane or CO gas;
With the intelligent monitoring unit that each analog measurement device links to each other, this intelligent monitoring unit is to judge the device that whether the analog measurement value of surveying meets " monitored data normally shows model " and report to the police according to " monitored data normally shows model " when noting abnormalities.
2. a kind of coal mine safety monitoring system according to claim 1, it is characterized in that: intelligent monitoring unit comprises: telecommunication unit and remote monitoring computer that central control unit, the AD conversion unit that is used to be connected each analog measurement device that links to each other with described each analog measurement device, the warning device that links to each other with the warning output of central control unit, being used for of linking to each other with central control unit link to each other with the remote monitoring computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203093290U CN201496105U (en) | 2009-08-31 | 2009-08-31 | Colliery safety monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009203093290U CN201496105U (en) | 2009-08-31 | 2009-08-31 | Colliery safety monitoring system |
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| CN201496105U true CN201496105U (en) | 2010-06-02 |
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| CN2009203093290U Expired - Fee Related CN201496105U (en) | 2009-08-31 | 2009-08-31 | Colliery safety monitoring system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122159A (en) * | 2010-12-30 | 2011-07-13 | 北京天地玛珂电液控制系统有限公司 | Production automation system of fully mechanized mining face |
| CN102155264A (en) * | 2011-03-29 | 2011-08-17 | 天地（常州）自动化股份有限公司 | Method for detecting abnormal gas quantity monitoring information in coal mine monitoring system |
| CN102375425A (en) * | 2010-08-17 | 2012-03-14 | 淮南矿业(集团)有限责任公司 | Coal mine safety monitoring system |
| CN104989455A (en) * | 2015-07-03 | 2015-10-21 | 陕西煤业化工技术研究院有限责任公司 | Mine gas and coal fire collaboration prevention and control method and device |
| CN111830208A (en) * | 2020-07-24 | 2020-10-27 | 精英数智科技股份有限公司 | Method and system for monitoring position state of methane sensor |
| CN112240223A (en) * | 2020-10-14 | 2021-01-19 | 精英数智科技股份有限公司 | Underground abnormal signal identification method and device, electronic equipment and storage medium |
| CN112989533A (en) * | 2021-02-22 | 2021-06-18 | 中煤科工集团重庆研究院有限公司 | Mine series ventilation identification method based on component proton method |
| CN114704331A (en) * | 2022-04-22 | 2022-07-05 | 中煤科工集团重庆研究院有限公司 | Coal mine coal and gas outburst alarm rapid identification method |
-
2009
- 2009-08-31 CN CN2009203093290U patent/CN201496105U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102375425A (en) * | 2010-08-17 | 2012-03-14 | 淮南矿业(集团)有限责任公司 | Coal mine safety monitoring system |
| CN102122159A (en) * | 2010-12-30 | 2011-07-13 | 北京天地玛珂电液控制系统有限公司 | Production automation system of fully mechanized mining face |
| CN102122159B (en) * | 2010-12-30 | 2012-09-05 | 北京天地玛珂电液控制系统有限公司 | Production automation system of fully mechanized mining face |
| CN102155264A (en) * | 2011-03-29 | 2011-08-17 | 天地（常州）自动化股份有限公司 | Method for detecting abnormal gas quantity monitoring information in coal mine monitoring system |
| CN104989455A (en) * | 2015-07-03 | 2015-10-21 | 陕西煤业化工技术研究院有限责任公司 | Mine gas and coal fire collaboration prevention and control method and device |
| CN104989455B (en) * | 2015-07-03 | 2017-03-22 | 陕西煤业化工技术研究院有限责任公司 | Mine gas and coal fire collaboration prevention and control method |
| CN111830208A (en) * | 2020-07-24 | 2020-10-27 | 精英数智科技股份有限公司 | Method and system for monitoring position state of methane sensor |
| CN112240223A (en) * | 2020-10-14 | 2021-01-19 | 精英数智科技股份有限公司 | Underground abnormal signal identification method and device, electronic equipment and storage medium |
| CN112240223B (en) * | 2020-10-14 | 2022-11-15 | 精英数智科技股份有限公司 | Underground abnormal signal identification method and device, electronic equipment and storage medium |
| CN112989533A (en) * | 2021-02-22 | 2021-06-18 | 中煤科工集团重庆研究院有限公司 | Mine series ventilation identification method based on component proton method |
| CN112989533B (en) * | 2021-02-22 | 2022-09-23 | 中煤科工集团重庆研究院有限公司 | Mine series ventilation identification method based on component proton method |
| CN114704331A (en) * | 2022-04-22 | 2022-07-05 | 中煤科工集团重庆研究院有限公司 | Coal mine coal and gas outburst alarm rapid identification method |
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