CN201953414U - Underground fire disaster and toxic and harmful gas positive pressure bundle pipe monitoring system of mine - Google Patents
Underground fire disaster and toxic and harmful gas positive pressure bundle pipe monitoring system of mine Download PDFInfo
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- CN201953414U CN201953414U CN2011200196907U CN201120019690U CN201953414U CN 201953414 U CN201953414 U CN 201953414U CN 2011200196907 U CN2011200196907 U CN 2011200196907U CN 201120019690 U CN201120019690 U CN 201120019690U CN 201953414 U CN201953414 U CN 201953414U
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- malleation
- positive pressure
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Abstract
The utility model discloses an underground fire disaster and toxic and harmful gas positive pressure bundle pipe monitoring system of a mine, which belongs to the technical field of mine safety monitoring. The system comprises five parts, namely a positive pressure conveying system, a gas analyzing system, a control system, a data acquisition system and a working station. Gas in a monitored area is centralized and conveyed to an underground place or a place on the ground in a way of positive pressure conveying to be subjected to centralized detection on the components and the concentration of the gas by the system. Because of the adoption of the way of positive pressure conveying, in the gas conveying process, the components and the concentration of the gas are not distorted, pipes are not easy to block, the conveying distance is long, no outer water enters, whether a pipeline is broken or leaks air is easy to detect, and the gas can automatically enter an analyzing and detecting device. The detection result is accurate and reliable. The system is applicable to analysis and detection on coal spontaneous combustion of a coal mine, fire ignition due to external heat of the mine and the toxic and harmful gas in the mine, and is also applicable to the analysis and detection on a fire disaster and the toxic and harmful gas in a metal mine.
Description
Affiliated technical field
The utility model relates to a kind of safety monitoring system, and the especially monitoring of fire and toxic and harmful in the mine belongs to the mining safety monitoring technical field.
Background technology
At present, beam tube monitoring is that the mine many places are easy to breaking out of fire and toxic and harmful is easy to gather the monitoring that the gas in the zone carries out, mine gas is transported to the down-hole by pipeline or centralized Analysis is carried out in the somewhere, ground, detect gas component and concentration, judge the danger of mine down-hole freely burning fire, exogenous fire generation state of development and toxic and harmful.
Can be divided into aboveground type beam tube system and down-hole type beam tube system according to centralized detecting place difference.Aboveground type beam tube system is transported to ground with all gas to carry out centralized Analysis and detect monitoring; Down-hole type beam tube system carries out analyzing and testing in the down-hole with all road gases, and will detect transfer of data and monitor to ground.
According to detection method, can be divided into sensor beam tube system and chromatogram beam tube system.Sensor type beam tube system comes check and analysis gas component and concentration with different sensors, for example CO, CO
2, CH
4And O
2Deng; Chromatogram type beam tube system comes gas componant and concentration are analyzed with gas chromatography.
But above-mentioned all beam tube systems utilize the way of negative pressure ventilation (generally adopting water ring vacuum pump to bleed) that gas is concentrated to pump in the analyzing and testing system (gas concentration sensor or gas chromatograph) to carry out analyzing and testing, this type beam tube can be referred to as the negative pressure beam tube, also be a kind of beam tube system that generally uses at present both at home and abroad.The type beam tube no matter is theoretically or from practice, the problem that all exists some itself to be difficult to overcome makes that the type beam tube is difficult to reach effect preferably on application in practice, mainly show:
(1) negative pressure beam tube environmental gas on the way is easy to enter in the beam tube, cause the gas component of examining and concentration distortion;
(2) breakage of negative pressure beam tube is difficult for discovering the observation detection;
(3) the negative pressure beam tube is easy to plugging and frozen pipe, may cause pipeline to be flattened by self negative pressure under the big situation of negative pressure;
(4) adopting water ring vacuum pump in pumping process, can additional water in inspection gas, to get, the accuracy that influence detects and the application life of detector;
(5) the gas sample can not enter in the analytical equipment automatically and go.
The utility model content
In order to overcome the above-mentioned deficiency of existing negative pressure beam tube monitoring system, the utility model provides a kind of malleation beam tube monitoring system.This system mainly adopt a plurality of malleation delivery pumps with the gas in a plurality of monitored areas places such as (mainly be) being easy to take place that spontaneous combustion of coal seam fire, exogenous fire and toxic and harmful are easy to gather through being pressed and delivered to ground or somewhere, down-hole, concentrate gas componant and concentration are analyzed, predict, forecast and monitor with this generation state of development and danger of coming mine freely burning fire, exogenous fire and toxic and harmful are gathered.
The technical scheme that its technical problem that solves the utility model adopts is: mine underground fire and toxic and harmful malleation beam tube monitoring system comprise gas malleation induction system, gas analysis system, control system, data collecting system and work station five major parts; The gas pressurized of drawing in the negative inspiratory pressure pipeline is transported to gas chromatograph by the malleation aspirating pipeline with the malleation delivery pump or the multiple gases concentration sensor carries out gas component and concentration analysis detects; Utilizing electromagnetic valve according to preset program multipath gas to be switched makes it pursue the road to enter in gas chromatograph or the multiple gases concentration sensor; Flow transmitter is monitored gas flow; By control system controlling to electromagnetic valve, gas chromatograph; The data of data collecting system flow sensor, gas chromatograph or multiple gases concentration sensor are gathered; Control system, data collecting system are all interconnected with work station.
The gas pressurized of drawing in the negative inspiratory pressure pipeline is transported to gas chromatograph by the malleation aspirating pipeline with the malleation delivery pump or the multiple gases concentration sensor carries out gas component and concentration analysis detects; Utilizing electromagnetic valve according to preset program multipath gas to be switched makes it pursue the road to enter in gas chromatograph or the multiple gases concentration sensor; Flow transmitter is monitored gas flow; By control system controlling to electromagnetic valve, gas chromatograph; The data of data collecting system flow sensor, gas chromatograph or multiple gases concentration sensor are gathered; Control system, data collecting system are all interconnected with work station.
The beneficial effects of the utility model are: owing to be that malleation is carried gas, in the gas course of conveying its component and concentration undistorted, be difficult for that plugging, fed distance are far away, no external moisture enters, whether breakage of signal piping easily, gas can enter analysis and detection device automatically, and a certain road gas malleation delivery pump breaks down and does not influence other gas circuit and normally monitor.Can be continuously the component and the concentration of multiple gases be detected, testing result accurately and reliably.The utility model is applicable to the generation state of development of coal mine underground coal bed spontaneous combustion and danger thereof is carried out monitoring, gas in the fire closed area is carried out analysis and judgement, analyze and monitor being easy to take place in the exogenous fire zone gas and mine gas toxic and harmful composition, concentration and the process of gathering thereof.This system also is applicable to metalliferous mine fire and toxic and harmful is analyzed and monitored.
Description of drawings
Fig. 1 is the utility model general structure schematic diagram;
Component and numbering among the figure:
1-filter dirt air hatch; 2-negative inspiratory pressure pipeline; 3-malleation delivery pump; 4-malleation aspirating pipeline;
The 5-flow transmitter; Many gas circuits of 6-switching device shifter; The 7-electromagnetic valve; The 8-air inlet pipe;
The 9-total inlet pipe; The 10-evacuated tube; The 11-gas chromatograph; 12-multiple gases concentration sensor;
13-transfer of data and collection cable; 14-control signal cable; The 15-control system;
The 16-data collecting system; The 17-work station.
The specific embodiment
Below in conjunction with embodiment the utility model is further specified.
Referring to Fig. 1, mine underground fire and toxic and harmful malleation beam tube monitoring system comprise gas malleation induction system, gas analysis system, control system 15, data collecting system 16 and workstation1 7 five major parts; The gas pressurized of drawing in the negative inspiratory pressure pipeline 2 is transported to gas chromatograph 11 by malleation aspirating pipeline 4 with malleation delivery pump 3 or multiple gases concentration sensor 12 carries out gas component and concentration analysis detects; Utilizing electromagnetic valve 7 according to preset program multipath gas to be switched makes it pursue the road to enter in gas chromatograph 11 or the multiple gases concentration sensor 12; 5 pairs of gas flows of flow transmitter are monitored; By controlling of 15 pairs of electromagnetic valves 7 of control system, gas chromatograph 11; The data of data collecting system 16 flow sensor 5, gas chromatograph 11 or multiple gases concentration sensor 12 are gathered; Control system 15, data collecting system 16 are all interconnected with workstation1 7.
This monitoring system comprises following concrete part:
Filter dirt air hatch 1: before gas enters gas circuit, utilize screen pack, strainer etc. that the dust in most gases is filtered.
Negative inspiratory pressure pipeline 2: till from filter dirt air hatch 1 to malleation delivery pump 3.Inside and outside caliber size and material design according to actual conditions, and length is determined according to site specific, but distance is short more good more.This pipe need carry out resistance to compression, shock resistance design when imbedding position such as goaf, and conventional method is the hard sleeve that installs the resistance to compression strong shock resistance outside additional.
Malleation delivery pump 3: require this pump to satisfy anti-flame proof requirement under the coal mine.The type selecting of pump is according to the distance of required conveying gas circuit, and tolerance size and elevation design.The tolerance that finally reaches gas analyser need surpass the requirement of gas analyser.Can produce certain negative pressure for filter dirt air hatch 1 end is that gas can be inhaled in the pump housing, just malleation delivery pump 3 has certain negative inspiratory pressure ability and stronger malleation pressure capacity simultaneously, and must guarantee that the gas of malleation aspirating pipeline 4 is the gas that comes from fully in the negative inspiratory pressure pipeline 2.
Malleation aspirating pipeline 4: this pipe is the major part of whole beam tube system, according to on-the-spot different needs, this length of tube does not wait to tens thousand of rice from hundreds of rice, and the material of pipe, interior external diameter size, flame-retardant and anti-static ability, laying requirement need be determined according to site specific according to relevant design requirement and standard.
Flow transmitter 5: can carry out on-line monitoring to each road gas flow, also can switch to total inlet pipe 9 to multipath gas simultaneously and monitor.Also can only observe, can adopt gas flow meter in the case gas flow.
Many gas circuits switching device shifter 6: this device effect is switched the gas of multichannel air inlet pipe 8 successively and is entered gas chromatograph 11 or multiple gases concentration sensor 12, adopt electromagnetic valve 7 to be installed in malleation aspirating pipeline 4 ends, every road, the gas of air inlet pipe 8 can be switched in the total inlet pipe 9, also can switch in the evacuated tube 10 and emit.
Gas analysis checkout gear (gas chromatograph 11 or multiple gases sensor 12): can adopt gas chromatograph 11 to carry out to gas component and concentration detection, detected components generally comprises CH
4, CO, CO
2, O
2, N
2, C
2H
4, C
2H
6, C
2H
2And C
3H
8Deng; Or can be to CO, CH with multiple gases sensor 12
4, O
2Carry out the concentration detection etc. gas component.
Control system 15: this system mainly controls by control signal cable 14 electromagnetic valve 7 of many gas circuits switching device shifter 6 and the hardware system of gas chromatograph 11.
Data collecting system 16: the data of the data of the main flow sensor 5 of this system, the data of gas chromatograph 11, multiple gases concentration sensor 12 are effectively gathered with gathering cable 13 by transfer of data, and upload to workstation1 7.
Workstation1 7: workstation1 7 is made of hardware system and software systems, on the one hand control system 15 and data collecting system 16 is carried out Comprehensive Control, initiatively obtains the data of whole beam tube system and analyzes, handles, stores, and forms form and printing etc.Also can on the basis of these software systems, add expert system, automatic analysis and judgment is carried out in the generation evolution of mine fire and the dangerous state of toxic and harmful.
The base program of the malleation beam tube system operation that enforcement the utility model forms is as follows:
Monitored gas is inhaled in the negative inspiratory pressure pipeline 2 under the effect of malleation delivery pump 3 by filter dirt air hatch 1, be pressed and delivered in the malleation aspirating pipeline 4 during by malleation delivery pump 3, before the electromagnetic valve 7 in entering many gas circuits switching device shifter 6, its flow is by flow transmitter 5 records.Gas in certain road air inlet pipe 8 is in being switched to total inlet pipe 9 time, and the gas of other all pipelines all is switched in the evacuated tube 10, by emptying simultaneously.Entering gases in the total inlet pipe 9 enters gas chromatograph 11 and carries out the analysis of gas componant and concentration; If adopt multiple gases concentration sensor 12 analytical gas concentration, so just the gas in the total inlet pipe 9 is introduced in all multiple gases concentration sensors 12 simultaneously and analyzed.Gas flow data and gas component and concentration data be by data collecting system 16 acquisition process, and be sent in the workstation1 7 and analyze, handle, show, store and print.Control system 15 is controlled many gas circuits switching device shifter 6 according to the programmed instruction of workstation1 7, so that all gas circuits enter gas chromatograph 11 successively according to certain time interval or multiple gases concentration sensor 12 carries out analyzing and testing.Meanwhile, workstation1 7 carries out data acquisition control according to predefined program to data acquisition system 16.
The correlated characteristic that this system also possesses is described as follows:
(1) gas carry to adopt the method that distributed malleation is carried, and promptly each road gas is transported to ground or somewhere, down-hole with gas pressurized its composition and concentration are carried out the centralized Analysis detection near gas collecting point.
(2) to get gas sample mouth be the negative inspiratory pressure section to one section pipeline of gas malleation delivery pump closing on the area to be monitored, and the required negative pressure of this section can be produced by gas malleation delivery pump self-priming.
(3) have or not gas and the monitoring of gas flow size at each road gas outlet.As long as be transported in the gas analysis checkout gear tolerance greater than this analysis and detection device institute air demand just can guarantee detect gas component and concentration is undistorted.Carry out the gas flow detection method and can adopt soap film flowmeter, also can adopt machinery or electronic flow checkout gear.
(4) analyzing and testing to gas component and concentration can adopt gas-chromatography detection method, also can adopt CO, CO
2, CH
4And O
2Carry out analyzing and testing Deng gas concentration sensor, and can carry out the increase and decrease of sensor kind and quantity according to actual needs.
(5) place that gas is carried out centralized detecting can be arranged near the mine well head the ground, also can be arranged on suitable position, mine down-hole.
(6) relevant apparatus that is arranged under the mine all need be prevented the flame proof design according to related request, satisfies anti-flame proof requirement.
Claims (1)
1. mine underground fire and toxic and harmful malleation beam tube monitoring system, it comprises gas malleation induction system, gas analysis system, control system (15), data collecting system (16) and work station (17) five major parts; It is characterized in that: the gas pressurized of drawing in the negative inspiratory pressure pipeline (2) is transported to gas chromatograph (11) by malleation aspirating pipeline (4) with malleation delivery pump (3) or multiple gases concentration sensor (12) carries out gas component and concentration analysis detects; Utilizing electromagnetic valve (7) according to preset program multipath gas to be switched makes it pursue the road to enter in gas chromatograph (11) or the multiple gases concentration sensor (12); Flow transmitter (5) is monitored gas flow; By control system (15) controlling to electromagnetic valve (7), gas chromatograph (11); The data of data collecting system (16) flow sensor (5), gas chromatograph (11) or multiple gases concentration sensor (12) are gathered; Control system (15), data collecting system (16) are all interconnected with work station (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200196907U CN201953414U (en) | 2011-01-21 | 2011-01-21 | Underground fire disaster and toxic and harmful gas positive pressure bundle pipe monitoring system of mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200196907U CN201953414U (en) | 2011-01-21 | 2011-01-21 | Underground fire disaster and toxic and harmful gas positive pressure bundle pipe monitoring system of mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953414U true CN201953414U (en) | 2011-08-31 |
Family
ID=44497531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200196907U Expired - Fee Related CN201953414U (en) | 2011-01-21 | 2011-01-21 | Underground fire disaster and toxic and harmful gas positive pressure bundle pipe monitoring system of mine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182511A (en) * | 2011-01-21 | 2011-09-14 | 谢晓莉 | Positive pressure bundle pipe monitoring system for mine underground fire and toxic and harmful gases |
| CN110187667A (en) * | 2019-04-24 | 2019-08-30 | 南京航空航天大学 | A kind of air pressure acquisition control system and test method controlling more gas circuit free switchings |
| CN110907397A (en) * | 2019-12-19 | 2020-03-24 | 山东光安智能科技有限公司 | ARM-based underground laser multi-gas beam tube sampling system |
| CN112798707A (en) * | 2020-12-29 | 2021-05-14 | 国家能源集团宁夏煤业有限责任公司 | Mining monitoring equipment and goaf gas monitoring method |
-
2011
- 2011-01-21 CN CN2011200196907U patent/CN201953414U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182511A (en) * | 2011-01-21 | 2011-09-14 | 谢晓莉 | Positive pressure bundle pipe monitoring system for mine underground fire and toxic and harmful gases |
| CN102182511B (en) * | 2011-01-21 | 2014-11-26 | 马汉鹏 | Positive pressure bundle pipe monitoring system for mine underground fire and toxic and harmful gases |
| CN110187667A (en) * | 2019-04-24 | 2019-08-30 | 南京航空航天大学 | A kind of air pressure acquisition control system and test method controlling more gas circuit free switchings |
| CN110907397A (en) * | 2019-12-19 | 2020-03-24 | 山东光安智能科技有限公司 | ARM-based underground laser multi-gas beam tube sampling system |
| CN112798707A (en) * | 2020-12-29 | 2021-05-14 | 国家能源集团宁夏煤业有限责任公司 | Mining monitoring equipment and goaf gas monitoring method |
| CN112798707B (en) * | 2020-12-29 | 2023-01-13 | 国家能源集团宁夏煤业有限责任公司 | Mining monitoring equipment and goaf gas monitoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20140121 |