CN203271727U - Coal mine underground hydrologic monitoring system based on optical fiber sensing technology - Google Patents
Coal mine underground hydrologic monitoring system based on optical fiber sensing technology Download PDFInfo
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- CN203271727U CN203271727U CN 201320331707 CN201320331707U CN203271727U CN 203271727 U CN203271727 U CN 203271727U CN 201320331707 CN201320331707 CN 201320331707 CN 201320331707 U CN201320331707 U CN 201320331707U CN 203271727 U CN203271727 U CN 203271727U
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Abstract
The utility model relates to a coal mine underground hydrologic monitoring system based on an optical fiber sensing technology. The coal mine underground hydrologic monitoring system based on the optical fiber sensing technology mainly comprises a sensor and a monitoring instrument host, wherein the sensor is arranged under a coal mine and is used for monitoring water pressure and/or water level information of corresponding monitoring points in real time; the monitoring instrument host is connected with the sensor through optical fiber and receives a monitoring signal from the sensor; a fiber bragg grating sensor, such as an optical fiber water pressure sensor and/or an optical fiber water level sensor, is used as the sensor, and is at least arranged in any one or more of the following monitoring points: a water-containing layer, a working surface gob ponding area, a water sump inlet, a closed wall, a wellhole, a drainage lane, an area with goaf water and a low-lying place in the same horizontal plane; the water-containing layer is at least provided with the optical fiber water pressure sensor; and the working surface gob ponding area, the water sump inlet and the closed wall are at least provided with the optical fiber water level sensor. The coal mine underground hydrologic monitoring system based on the optical fiber sensing technology can cover most of hydrologic monitoring points well and can be used for grasping underground hydrogeological conditions, so that early finding, prediction, prevention and control for water disasters can be realized.
Description
Technical field
The utility model relates under a kind of coal mine the hydrologic monitoring system, and is especially a kind of based on hydrologic monitoring system under the coal mine of optical fiber sensing technology.
Background technology
Mine water inrush is considered to one of disaster of Safety of Coal Mine Production always, is also the great safe working difficult problem that countries in the world face, and water inrush accident occurs in mining process usually cause great economic loss and casualties.Since the establishment of the nation, in the great coal mining accident more than dead 3 people once, water damage occupies the 3rd, and average each death by accident 7.06 people are only second to gas and fire incident.
Mine leaks and mainly contains two sources, down-hole gushing water and surface water.Water bursting in mine is a kind of complex geological conditions and mining influence phenomenon, it is the coal seam obstruct that the goaf water in artesian water or adjacent goaf breaks through base plate water barrier, barrier pillar of underliing, enter work plane with burst, the form of deferred or stagnant, cause inflow rate of mine water to increase or flood the disaster such as well.Main water damage mainly contains 4 kinds at present: the ponding water damage in the high pressure-bearing karst water of main mining coal seam base plate gushing water water damage, main mining coal seam top board sandstone and the permeable water damage of unconsolidated formation pore water, abandoned working ponding water damage and goaf.
Wherein, especially take the downhole coal mine Water Inrush as main, its normally the Shuitu that underlies in artesian aquifer of coal seam so pour in getting working face, make inflow rate of mine water increase or flood well, the presentation that it embodies is the bump sudden outburst.
The focus of administering coal mine flood is prevention, and the water damage prediction is the basis of prevention.Traditional electronic type hydrologic monitoring system generally need to be unfavorable for analyzing the water burst situation of issue by manually regularly to selected observation point point-to-point measurement, when particularly gushing water occuring, can not in time find.Both wastes of manpower, material resources also waste financial resources, and simultaneously, because hydrologic monitoring point disperses, the more difficult covering of electronic type hydrologic monitoring system most of monitoring points can not the whole hydrologic regime of grasping mine.
Summary of the invention
In order to overcome the defects of prior art, it is a kind of based on hydrologic monitoring system under the coal mine of optical fiber sensing technology that the utility model purpose is to provide, can realize the continuous monitoring to hydrological regime, and can grasp the whole hydrologic regime of mine, be conducive to early warning and prevention to coal mine flood, guarantee that the safety of coal production is carried out.
In order to achieve the above object, the main technical schemes of the utility model employing is:
A kind of based on hydrologic monitoring system under the coal mine of optical fiber sensing technology, it mainly comprises:
Sensor is located under coal mine and hydraulic pressure and/or the water level information of Real-Time Monitoring corresponding monitoring point;
The monitor main frame is connected with sensor by optical fiber and receives monitor signal from sensor.
Be preferably, described sensor is the grating type optical fiber sensor.
Described grating type optical fiber sensor can be optical fiber hydraulic pressure sensor and/or optical fiber level sensor.
Be preferably, described sensor also comprises the optical fiber cooling-water temperature sensor.
Be preferably, described optical fiber hydraulic pressure sensor and optical fiber cooling-water temperature sensor are integrated.
Be preferably, above-mentioned any based on hydrologic monitoring system under the coal mine of optical fiber sensing technology, described sensor is located at least any in following monitoring point or is appointed several: in aquifer, work plane old empty pools zone, sump entrance, fire dam, wellhole, sluicing lane, the zone that goaf water is arranged and same level more low-lying place.
Be preferably, described aquifer is provided with the optical fiber hydraulic pressure sensor at least, and described work plane old empty pools zone is provided with the optical fiber level sensor at least, and described sump entrance is provided with the optical fiber level sensor at least, is provided with at least the optical fiber level sensor in described fire dam.
Be preferably, above-mentioned any based on hydrologic monitoring system under the coal mine of optical fiber sensing technology, it also comprises microcomputer and splice tray, microcomputer is connected with the monitor main frame by transmission cable, sensor is connected with the monitor main frame by splice tray.
Be preferably, described sensor is located in pvc pipe, and the tube wall of pvc pipe is provided with some permeable holes, and tube wall is wrapped with filter cloth.
The sensor of being located in the tunnel is fixed in the tunnel wall by support.
The beneficial effects of the utility model are:
The optical fiber sensing technology that the utility model adopts has the characteristics such as essential safety, multiplexing capacity are strong, long transmission distance, make the utility model can cover preferably most of hydrologic monitoring points, better grasp down-hole hydrology geological condition, reach the effect that found, early forecast, early prevent and treat the morning of water damage accident.Simultaneously, by with corresponding sensor setting in position, make the utility model can be convenient to the whole down-hole hydrologic regime of grasping, for the further development trend of prediction water damage provides accurate full and accurate data bases, be convenient to the carrying out of coal mine flood preventing and controlling, guaranteed that the safety of production is carried out.
Description of drawings
Fig. 1 is the system architecture schematic diagram of an embodiment of the utility model;
Fig. 2 is the structural representation of an embodiment of the utility model;
Fig. 3 is the monitoring result schematic diagram of an embodiment of the utility model.
The specific embodiment
For the ease of understanding, the utility model is described in further detail by the specific embodiment below in conjunction with accompanying drawing.
Referring to Fig. 1, Fig. 2 and Fig. 3, of the present utility model based on hydrologic monitoring system under the coal mine of optical fiber sensing technology, mainly comprise:
Sensor is located under coal mine and hydraulic pressure and/or the water level information of Real-Time Monitoring corresponding monitoring point;
Monitor main frame 2 is connected with sensor by optical fiber 3 and receives monitor signal from sensor.
Described sensor is optical fiber hydraulic pressure sensor 101 and/or optical fiber level sensor 102.
Described sensor also comprises optical fiber cooling-water temperature sensor 103.
Described optical fiber hydraulic pressure sensor 101, optical fiber level sensor 102 and optical fiber cooling-water temperature sensor 103 can be the grating type optical fiber sensor.
Described optical fiber hydraulic pressure sensor 101 and optical fiber cooling-water temperature sensor 103 can be integrated, and in other words, described optical fiber hydraulic pressure sensor 101 ＇ are integrated with the water temperature detection function, and in other words, described optical fiber cooling-water temperature sensor 103 ＇ are integrated with the water pressure monitoring function.
Described sensor is located at least any in following monitoring point or is appointed several: in aquifer, work plane old empty pools zone, sump entrance, fire dam, wellhole, sluicing lane, the zone that goaf water is arranged and same level more low-lying place.
Wherein, described aquifer 10(such as monitoring point 2# and monitoring point 5#) be provided with at least optical fiber hydraulic pressure sensor 101 in order to water pressure monitoring is carried out in the aquifer, the old empty pools zone 11(of described work plane such as monitoring point 3# and monitoring point 6#) be provided with at least optical fiber level sensor 102, described sump entrance 12(such as monitoring point 7#) be provided with at least optical fiber level sensor 102,13(such as monitoring point 1# and monitoring point 4# in described fire dam) be provided with at least optical fiber level sensor 102, in order to water level monitoring is carried out in corresponding position.
Usually, each position that need to monitor is equipped with at least one monitoring point, is preferably each monitoring location and is provided with several monitoring points, causes monitoring result inaccurate to avoid single monitoring point.
Be preferably, each monitoring point is provided with several sensors, and these several sensors can be a type, also can be a plurality of types, are preferably a plurality of types, in order to realize multi-parameter monitoring.
Be preferably, the sensor of every type in each monitoring point is a plurality of.
Described optical fiber hydraulic pressure sensor 101 is preferably the grating type optical fiber sensor, when variation in water pressure, and the flexible sheet that the causes optical fiber hydraulic pressure sensor 101 bottoms variation that is stressed, different pressure causes the deformation quantity that flexible sheet is different.Through transmission mechanism, the deformation of flexible sheet is converted into the deformation of fiber grating, and finally changes the variation of optical wavelength into.As long as measure the relation between optical wavelength variation and variation in water pressure, just can come by the variation of light characteristic parameter Real-time Measuring amount hydraulic pressure value.This sensor reliability is high, and long-play is stable.Make the Real-Time Monitoring variation in water pressure that the utility model can be steady in a long-term.
Described sensor is located in pvc pipe, and the tube wall of pvc pipe is provided with some permeable holes, and tube wall is wrapped with filter cloth.Some permeable holes evenly are arranged on the tube wall of pvc pipe.
The sensor of being located in the tunnel can be fixed in the tunnel wall by support.
Above-mentioned any based on hydrologic monitoring system under the coal mine of optical fiber sensing technology, it also comprises microcomputer and splice tray, microcomputer is connected with the monitor main frame by transmission cable, sensor is connected with the monitor main frame by splice tray.
Mounting software in microcomputer as required is to process monitored data according to actual needs.For example, can be achieved as follows function:
1, Presentation Function: the Presentation Function of three-dimensional flow process picture; Have polytype chart, system drawing, curve map, rod figure etc., user interface is more directly perceived.
2, analytic function: historical trend shows, future trend is assessed, and the maintenance reference information is provided;
3, warning function: alert levels and the geographic position name of setting the different location according to actual conditions; System can arrange sound alarm function;
4, printing function: can carry out various Print reports;
5, upload function: the real time data network is uploaded, and easily realizes unmanned.
6, self-checking function: in system, some sensors break down, and can screen out fault sensor by software.
7, form customization: the various forms of user customizable: real time data table, historical data and statistical report form, warning list etc.
8, query function: can be on system drawing directly inquiry apparatus information, operation history data etc.
Level sensor of the present utility model should meet the parameter request of table 1 usually.
The parameter of table 1 level sensor
| Project | Unit | Parameter value |
| Range | M | 20 |
| Certainty of measurement | FS | 0.5% |
| Sensitivity | % | 0.1 |
Monitoring system of the present utility model can reach the index of table 2 usually.
The index of table 2 monitoring system of the present utility model
In sum, monitoring system of the present utility model compared with prior art has following advantage:
1, the water level real time on-line monitoring of multiple spot;
2, measurement is more accurate, and precision is higher;
3, monitoring sensor need not power supply, handling safety;
4, monitoring information with the transmission of optical signal form, is not subjected to electromagnetic interference, moisture proof, and the signal processing and control element (PCE) of whole system is in the control room away from the working region;
5, human and material resources are saved in disposable calibration, and cost is low;
6, system run all right, reliable, easily expansion;
7, with fiber grating perception water level information, insulating properties is strong, essential safety, and stability is high;
8, simple, intuitive: can directly see the water level situation of each monitoring point on the display screen of system, after setting alarm threshold, system's automatic lifting is for sound and light alarm.
Monitoring system of the present utility model has the optical fiber sensing technology of the characteristics such as essential safety, multiplexing capacity are strong, long transmission distance by employing, make the utility model can cover preferably most of hydrologic monitoring points, better grasp down-hole hydrology geological condition, reach the effect that found, early forecast, early prevent and treat the morning of water damage accident.Simultaneously, by with corresponding sensor setting in position, make the utility model can be convenient to the whole down-hole hydrologic regime of grasping, for the further development trend of prediction water damage provides accurate full and accurate data bases, be convenient to the carrying out of coal mine flood preventing and controlling, guaranteed that the safety of production is carried out.
Claims (10)
1. one kind based on hydrologic monitoring system under the coal mine of optical fiber sensing technology, it is characterized in that, comprising:
Sensor is located under coal mine and hydraulic pressure and/or the water level information of Real-Time Monitoring corresponding monitoring point;
The monitor main frame is connected with sensor by optical fiber and receives monitor signal from sensor.
2. as claimed in claim 1 based on hydrologic monitoring system under the coal mine of optical fiber sensing technology, it is characterized in that: described sensor is the grating type optical fiber sensor.
3. as claimed in claim 2 based on hydrologic monitoring system under the coal mine of optical fiber sensing technology, it is characterized in that: described grating type optical fiber sensor is optical fiber hydraulic pressure sensor and/or optical fiber level sensor.
4. as claimed in claim 3 based on hydrologic monitoring system under the coal mine of optical fiber sensing technology, it is characterized in that: described sensor also comprises the optical fiber cooling-water temperature sensor.
5. as claimed in claim 4 based on hydrologic monitoring system under the coal mine of optical fiber sensing technology, it is characterized in that: described optical fiber hydraulic pressure sensor and optical fiber cooling-water temperature sensor are integrated.
6. as claimed in claim 1 based on hydrologic monitoring system under the coal mine of optical fiber sensing technology, it is characterized in that: described sensor is located at least any in following monitoring point or is appointed several: in aquifer, work plane old empty pools zone, sump entrance, fire dam, wellhole, sluicing lane, the zone that goaf water is arranged and same level more low-lying place.
7. as claimed in claim 6 based on hydrologic monitoring system under the coal mine of optical fiber sensing technology, it is characterized in that: described aquifer is provided with the optical fiber hydraulic pressure sensor at least, the old empty pools zone of described work plane is provided with the optical fiber level sensor at least, described sump entrance is provided with the optical fiber level sensor at least, is provided with at least the optical fiber level sensor in described fire dam.
8. as described in any one in claim 1 to 7 based on hydrologic monitoring system under the coal mine of optical fiber sensing technology, it is characterized in that: also comprise microcomputer and splice tray, microcomputer is connected with the monitor main frame by transmission cable, and sensor is connected with the monitor main frame by splice tray.
9. as claimed in claim 8 it is characterized in that: described sensor is located in pvc pipe based on hydrologic monitoring system under the coal mine of optical fiber sensing technology, and the tube wall of pvc pipe is provided with some permeable holes, and tube wall is wrapped with filter cloth.
10. as claimed in claim 9 based on hydrologic monitoring system under the coal mine of optical fiber sensing technology, it is characterized in that: the sensor of being located in the tunnel is fixed in the tunnel wall by support.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320331707 CN203271727U (en) | 2013-06-08 | 2013-06-08 | Coal mine underground hydrologic monitoring system based on optical fiber sensing technology |
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| CN 201320331707 CN203271727U (en) | 2013-06-08 | 2013-06-08 | Coal mine underground hydrologic monitoring system based on optical fiber sensing technology |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484802A (en) * | 2016-01-15 | 2016-04-13 | 西安科技大学 | Coal mine rock burst united monitoring and early warning system and monitoring and early warning method thereof |
| WO2016095462A1 (en) * | 2014-12-15 | 2016-06-23 | 中国矿业大学 | TS-q METHOD FOR EVALUATING FLOOR WATER INRUSH RISK IN DEEP MINE COAL SEAM MINING |
| CN108318931A (en) * | 2017-12-14 | 2018-07-24 | 中国矿业大学 | In high precision, essential safety roof height of water flowing fractured zone method of real-time |
| CN108442917A (en) * | 2017-12-14 | 2018-08-24 | 中国矿业大学 | A kind of roof height of water flowing fractured zone underground continuous real-time monitoring method |
| CN114278380A (en) * | 2021-12-31 | 2022-04-05 | 北京景通科信科技有限公司 | Experimental device for simulating detection of disaster condition after mine disaster |
-
2013
- 2013-06-08 CN CN 201320331707 patent/CN203271727U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016095462A1 (en) * | 2014-12-15 | 2016-06-23 | 中国矿业大学 | TS-q METHOD FOR EVALUATING FLOOR WATER INRUSH RISK IN DEEP MINE COAL SEAM MINING |
| CN105484802A (en) * | 2016-01-15 | 2016-04-13 | 西安科技大学 | Coal mine rock burst united monitoring and early warning system and monitoring and early warning method thereof |
| CN108318931A (en) * | 2017-12-14 | 2018-07-24 | 中国矿业大学 | In high precision, essential safety roof height of water flowing fractured zone method of real-time |
| CN108442917A (en) * | 2017-12-14 | 2018-08-24 | 中国矿业大学 | A kind of roof height of water flowing fractured zone underground continuous real-time monitoring method |
| CN108318931B (en) * | 2017-12-14 | 2019-12-31 | 中国矿业大学 | High-precision and intrinsically safe real-time monitoring method for height of coal seam roof water flowing fractured zone |
| CN114278380A (en) * | 2021-12-31 | 2022-04-05 | 北京景通科信科技有限公司 | Experimental device for simulating detection of disaster condition after mine disaster |
| CN114278380B (en) * | 2021-12-31 | 2024-06-04 | 北京景通科信科技有限公司 | Experimental device for disaster situation detection after simulation mine disaster |
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Granted publication date: 20131106 Termination date: 20190608 |
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