CN201896630U - Coal-mine digital outburst prevention mining on-line monitoring system - Google Patents
Coal-mine digital outburst prevention mining on-line monitoring system Download PDFInfo
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- CN201896630U CN201896630U CN2010202593831U CN201020259383U CN201896630U CN 201896630 U CN201896630 U CN 201896630U CN 2010202593831 U CN2010202593831 U CN 2010202593831U CN 201020259383 U CN201020259383 U CN 201020259383U CN 201896630 U CN201896630 U CN 201896630U
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- line monitoring
- single hole
- extraction
- monitoring system
- monitoring module
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Abstract
The utility model provides a coal-mine digital outburst prevention mining on-line monitoring system, which comprises a coal bed gas pressure on-line monitoring module, a single-hole on-line monitoring module, an automatic drain on-line monitoring module and a monitoring terminal, wherein the coal bed gas pressure on-line monitoring module, the single-hole on-line monitoring module and the automatic drain on-line monitoring module are respectively connected with the monitoring terminal; the single-hole on-line monitoring module is a single-hole flowmeter arranged a the single hole, and the single-hole flowmeter comprises a flow unit used for measuring the gas flow of the single hole. The coal-mine digital outburst prevention mining on-line monitoring system increases the accuracy of the single-hole measurement through adopting the way that the single-hole flowmeter is directly installed at the single hole to measure the relevant parameters of the single hole, the software of the monitoring terminal does not need to be changed, and the terminal application is simplified.
Description
Technical field
The utility model relates to the mine supervision technology, particularly a kind of colliery digitlization protrusion-dispelling extraction on-line monitoring system.
Background technology
For guaranteeing the safety in production in colliery, adopt colliery digitlization protrusion-dispelling extraction on-line monitoring system to carry out the monitoring of associated safety parameter usually.For example, as shown in Figure 1, Fig. 1 is the monitor terminal display page schematic diagram of prior art colliery digitlization protrusion-dispelling extraction on-line monitoring system.Can carry out the single hole flow examination of coal-bed gas pressure measurement, extraction drill site and the control that discharges water of extraction system by this on-line monitoring system.Wherein, the single hole flow of measuring the extraction drill site generally adopts " subtraction " mode.Concrete, adopt the V cone flow meter to carry out single hole flow measurement usually, but because the minimum pipe of V cone flow meter incompatibility drill site single hole DN50 (DN is an inside nominal diameter) caliber still; Therefore, can only measure the flow of main pipe rail, adopt the closure of solenoid control single hole, do " subtraction " then and try to achieve main pipe rail and promptly obtain the single hole flow in the difference in flow of closing before and after the single hole by the V cone flow meter.
But there is following technical problem in above-mentioned colliery digitlization protrusion-dispelling extraction on-line monitoring system: " subtraction " mode of employing is measured drill site single hole flow and is had many defectives.For example, on the one hand, the variation of the survey data of the V cone flow meter in the pipeline may be caused by multiple factor; According to hydromechanical character, the flow of fluid (particularly gas) can be subjected to the temperature of gas, pressure and constantly change, even do not do " subtraction ", the survey data of V cone flow meter also has difference and occurs; So the measured flow difference actual flow of single hole not necessarily when closing single hole, promptly the subtraction mode may cause measure inaccurate.On the other hand,, therefore,, then need software is changed, in software, increase subtraction function, improved the complexity of system's operation thus if do " subtraction " computing because the monitor terminal software of conventional online monitoring system does not possess " subtraction " function.
The utility model content
The purpose of this utility model provides a kind of colliery digitlization protrusion-dispelling extraction on-line monitoring system, with the degree of accuracy of raising single hole measurement, and simplifies terminal applies.
The utility model provides a kind of colliery digitlization protrusion-dispelling extraction on-line monitoring system, comprise coal-bed gas pressure on-line monitoring module, single hole on-line monitoring module, discharge water on-line monitoring module and monitor terminal automatically, described coal-bed gas pressure on-line monitoring module, single hole on-line monitoring module, the on-line monitoring module that discharges water is connected with described monitor terminal respectively automatically; Described single hole on-line monitoring module is the single hole flow meter that is used to be installed in the single hole place, and described single hole flow meter comprises the flow cell of the gas flow that is used to measure described single hole.
Aforesaid colliery digitlization protrusion-dispelling extraction on-line monitoring system, described single hole flow meter also comprises: the temperature unit that is used to measure the gas temperature of described single hole.
Aforesaid colliery digitlization protrusion-dispelling extraction on-line monitoring system, described single hole flow meter also comprises: the pressure unit that is used to measure the gas pressure of described single hole.
Aforesaid colliery digitlization protrusion-dispelling extraction on-line monitoring system also comprises: concentration sensor is used to measure the gas density of described single hole.
Aforesaid colliery digitlization protrusion-dispelling extraction on-line monitoring system, described single hole flow is counted the precession vortex flowmeter.
Aforesaid colliery digitlization protrusion-dispelling extraction on-line monitoring system, comprise Temperature probe, pressure sensing head and flow meter integrating instrument in the described precession vortex flowmeter, described Temperature probe, pressure sensing head are arranged on the housing of described precession vortex flowmeter, and communicate with the fluid passage of described precession vortex flowmeter.
Aforesaid colliery digitlization protrusion-dispelling extraction on-line monitoring system, described coal-bed gas pressure on-line monitoring module is positive pressure sensor.
Aforesaid colliery digitlization protrusion-dispelling extraction on-line monitoring system, the described on-line monitoring module that discharges water automatically is automatic tailrace; Comprise liquid level sensor, water inlet check common valve, electronic pressure-relief valve and the non retern valve that discharges water in the described automatic tailrace, described liquid level sensor is connected with electronic pressure-relief valve, and described electronic pressure-relief valve is communicated with water inlet check common valve.
Aforesaid colliery digitlization protrusion-dispelling extraction on-line monitoring system communicates to connect between described water inlet check common valve and the monitor terminal.
Colliery digitlization protrusion-dispelling extraction on-line monitoring system of the present utility model, by adopting the single hole flow meter directly to be installed on the relevant parameter that the single hole place measures single hole, improve the accuracy that single hole is measured, and do not needed to change the software of monitor terminal, workable, portable strong.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the monitor terminal display page schematic diagram of prior art colliery digitlization protrusion-dispelling extraction on-line monitoring system;
Fig. 2 is the structural representation of the utility model colliery digitlization protrusion-dispelling extraction on-line monitoring system;
Fig. 3 is the structural representation of the precession vortex flowmeter that adopted in the utility model colliery digitlization protrusion-dispelling extraction on-line monitoring system;
Fig. 4 is the mounting structure schematic diagram of the precession vortex flowmeter that adopted in the utility model colliery digitlization protrusion-dispelling extraction on-line monitoring system;
Fig. 5 shows schematic diagram for the measurement result example of the precession vortex flowmeter that adopted in the utility model colliery digitlization protrusion-dispelling extraction on-line monitoring system;
Fig. 6 is the structural representation of the automatic tailrace that adopted in the utility model colliery digitlization protrusion-dispelling extraction on-line monitoring system.
Description of reference numerals:
11-coal-bed gas pressure on-line monitoring module; 12-single hole on-line monitoring module; The 13-on-line monitoring module that discharges water automatically;
The 14-monitor terminal; 15-plays the whirlpool device; The 16-housing;
17-flow meter integrating instrument; 18-piezo-electric crystal sensing head; The 19-Temperature probe;
20-pressure sensing head; The 21-whirlpool device that disappears; The 22-container that discharges water;
The 23-liquid level sensor; 24-water inlet check common valve; The electronic pressure-relief valve of 25-;
The 26-non retern valve that discharges water; The 27-flow meter; The 28-bypass line.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Main technical schemes of the present utility model is, be provided with at drill site single hole place and can be used to carry out for example single hole on-line monitoring module measured of gas flow of single hole parameter separately, thereby not needing to carry out " subtraction " formula measures again, improve the accuracy that single hole is measured, and do not need the monitor terminal software of the system that changes, simplified terminal applies.
Below by the drawings and specific embodiments, the technical solution of the utility model is described in further detail.
Fig. 2 is the structural representation of the utility model colliery digitlization protrusion-dispelling extraction on-line monitoring system.As shown in Figure 2, this monitoring system can comprise coal-bed gas pressure on-line monitoring module 11, single hole on-line monitoring module 12, discharge water on-line monitoring module 13 and monitor terminal 14 automatically.
Wherein, coal-bed gas pressure on-line monitoring module 11 is used to measure the gas pressure in coal seam; Single hole on-line monitoring module 12 can be measured the relevant parameter of single hole; Automatically the on-line monitoring module 13 that discharges water is used for the extraction system is discharged water automatically.Above-mentioned coal-bed gas pressure on-line monitoring module 11, single hole on-line monitoring module 12 and the on-line monitoring module 13 that discharges water automatically are connected with monitor terminal 14 respectively, data such as gas pressure numerical value that it can be measured and single hole flow number are sent to monitor terminal 14 and show, are beneficial to monitor.
Wherein, the single hole on-line monitoring module 12 in the present embodiment can be for being installed in the single hole flow meter at single hole place, and this flow meter can be arranged in each single hole.It can comprise flow cell, is used for directly the gas flow of single hole being measured.By directly the single hole flow meter being set at the single hole place, directly measure the single hole parameter, overcome " subtraction " of the prior art inaccurate defective of data that metering system caused, improved the accuracy that single hole is measured; And owing to no longer need to carry out " subtraction " computing, thus no longer need to change monitor terminal software, simplified terminal applies.In addition, present embodiment is also verified the measured single hole data on flows of single hole flow meter, being about to flow meter data compares with the orifice plate test data that is installed on the same pipeline, can obtain, the single hole gas flow value that employing present embodiment single hole flow meter records is between simple formula result of calculation numerical value and unified formula result of calculation numerical value, therefore, has the higher degree of accuracy.
Further, the single hole flow meter that single hole on-line monitoring module in the present embodiment 12 is for example above-mentioned can also comprise temperature unit, pressure unit.Wherein, temperature unit is used to measure the gas temperature of single hole, and pressure unit is used to measure the gas pressure of single hole.In addition, can also comprise concentration sensor, be used to measure the gas density of single hole.The single hole flow meter of present embodiment can only obtain single hole gas flow parameter with respect to of the prior art, has increased gas temperature, pressure and other parameters, thereby can more fully monitor the gas state of single hole, improves the ability of security monitoring; Simultaneously also can provide more foundation for gas control.In addition, also show the gas scale of single hole in the monitor terminal 14, this scalar values is the product of gas flow and gas density.
Concrete, for example, this single hole flow meter can adopt the precession vortex flowmeter of the CX series that is applicable to low flow velocity, low discharge, and its minimum measurement flow can be 0.05m
3/ min.The structure of this precession vortex flowmeter can be referring to Fig. 3, and Fig. 3 is the structural representation of the precession vortex flowmeter that adopted in the utility model colliery digitlization protrusion-dispelling extraction on-line monitoring system.The integrated flow meter of this flow meter, it can comprise whirlpool device 15, housing 16, flow meter integrating instrument 17, piezo-electric crystal sensing head 18, Temperature probe 19, pressure sensing head 20 and the whirlpool device 21 that disappears.Described Temperature probe 19, pressure sensing head 20 are arranged on the housing 16, and communicate with the fluid passage of this precession vortex flowmeter.Its principle is roughly, and when for example gas is entered by the inlet of flow meter along axial fluid, is playing the whirlpool device 15 times, is forced to produce eddy-currents around the center line rotation; Eddy-currents arrives the unexpected throttling of contraction section along housing 16 and quickens; When by diffuser, the whirlpool center is along a conical helix precession.At this moment, after front end circuit amplification, filtering, shaping, be converted to the pulse signal that two-way is directly proportional with flow velocity by two piezo-electric crystal sensing heads, 18 detected eddy-currents precession frequency signals, treatment circuit carries out the comparison and the judgement of phase place in flow meter integrating instrument 17, and after rejecting external interfering signal, send into flow meter integrating instrument 17 with Temperature probe 19, pressure sensing head 20 detected signals and carry out calculation process, and the volume flow of fluid and total amount directly are shown on the LCD screen.The whirlpool device 21 that disappears is fixed on outlet section, can eliminate eddy-currents.
Above-mentioned precession vortex flowmeter is easy for installation, its restriction to ambient conditions is few, can detect temperature, pressure and the flow value of gas automatically, exactly, and directly show and upload (Pb=101.325kPa, gas volume cumulant Tb=293.15K) under the standard state.Fig. 4 is the mounting structure schematic diagram of the precession vortex flowmeter that adopted in the utility model colliery digitlization protrusion-dispelling extraction on-line monitoring system, referring to Fig. 4, flow meter 27 should with the coaxial installation of the pipeline of single hole, and can arbitrarily angledly install, need to guarantee that the flow direction of gas should be consistent with the flow direction that identifies on the flow meter.In addition, for the normal conveying that do not influence gas be convenient to safeguard, by-pass line can be installed.Arrow among Fig. 4 is depicted as air flow inlet; Preceding straight length a is more than or equal to 3DN, and back straight length b is more than or equal to 1DN; Bypass line 28 also is installed.
In addition, Fig. 5 shows schematic diagram for the measurement result example of the precession vortex flowmeter that adopted in the utility model colliery digitlization protrusion-dispelling extraction on-line monitoring system.Can from Fig. 5, see, adopt this precession vortex flowmeter can measure data such as the temperature of gas in the single hole, pressure, flow, in addition, can also measure the gas density data, with respect to recording gas flow in the prior art, not only improved the accuracy of measurement of data, and measurement parameter increases the raising of security monitoring ability.In addition, also can make the change curve of above-mentioned four parameters at monitor terminal software.
Wherein, coal-bed gas pressure on-line monitoring module 11 can adopt the positive pressure sensor of GPD100 type 0～6MPA to carry out the gas pressure on-line monitoring, because the range of this pressure sensor is consistent with manometric range, therefore the data that record are more accurate.In addition, because the positive pressure sensor of GPD100 is split type, head is what to separate with demonstration, is not subjected to the influence of pipeline position in the drill site, is more convenient for installing and personnel's observation.Pressure sensor signal can generate real-time monitoring curve after inserting the monitor terminal 14 of present embodiment automatically, and the technician is by analyzing this curve, can judge coal-bed gas pressure with the variation relation of extraction time, and then examine or check out the extraction radius.
Wherein, the on-line monitoring module 13 that discharges water automatically is an automatic tailrace.Compare with the artificial tailrace of mechanical type used in the prior art, there are many defectives in tailrace of the prior art, for example, adopts float-ball type or mechanical type usually, and by manually discharging water, efficient is very low; Tailrace does not have communication function, can not can not in time be found even break down at ground observation to the state of discharging water; Perhaps, can only carry out the control that regularly discharges water, for example, discharge water once in per 5 minutes tailrace, no matter and whether should discharge water, cause the wasting of resources.And the automatic tailrace of present embodiment has increased communication interface, and this communication interface adopts the limit switch one passive contact of pneumatic operated valve to output to monitor terminal, shows in real time that on monitor terminal tailrace is in the state of discharging water or catchments state; When anhydrous, do not start the execution unit pneumatic operated valve, prolonged the application life of execution unit; Do not carry out the action that discharges water when water is discontented in container, realized that " automatically " truly discharges water, improved the extraction efficient of extraction system greatly.
Concrete, Fig. 6 is the structural representation of the automatic tailrace that adopted in the utility model colliery digitlization protrusion-dispelling extraction on-line monitoring system, as shown in Figure 6, the container that discharges water of this automatic tailrace can comprise the container 22 that discharges water, liquid level sensor 23, water inlet check common valve 24, electronic pressure-relief valve 25 and the non retern valve 26 that discharges water.When normally catchmenting, water inlet check common valve 24 is in open mode, and electronic pressure-relief valve 25 is in closed condition; When the water in the container 22 that discharges water is full, liquid level sensor 23 sends the instruction that discharges water, pass to electronic pressure-relief valve 25, electronic pressure-relief valve 25 is opened, water inlet check common valve 24 is closed under extraction pipe suction function, and atmospheric pressure enters automatic tailrace header tank, and the tailrace dewatering orifice discharges water like this, the non retern valve 26 that discharges water just discharges water, and the extraction pipe continues mash gas extraction.When the discharging of the water water in the container 22 that discharges water finished, liquid level sensor 23 sent instruction, closes electronic pressure-relief valve 25, and water inlet check common valve 24 pressure at two ends balances are opened into water check common valve 24 in the header tank under the effect of water, enter next state that catchments.
The water inlet check common valve 24 of this automatic tailrace can be used as communication interface and exports one group of RS-485 signal and be uploaded to monitor terminal 14, make that on ground just can observe tailrace is in the state of discharging water or catchments state, also be convenient to simultaneously the operator on duty and supervise tailrace and whether be in serviceable condition.In addition, it can insert monitoring system, also can be irrelevant with supervision department, and therefore, do not need additionally to change monitoring system software, thereby can not increase extra maintenance of system software administrative burden.Further, can be when adopting intelligent RS-485 mode to carry out signal feedback, two holding wires can be saved communication line 80% with the feedback signal of 16 tailraces.Whole devices of this automatic tailrace can be installed in the explosion-proof chamber, avoid the invasion of tunnel trickle fully and exempt from artificial destruction; It is simple in structure, only uses the intrinsic safety dc source, has therefore significantly reduced installation procedure than similar tailrace, has reduced installation cost.
The colliery digitlization protrusion-dispelling extraction on-line monitoring system of present embodiment, by adopting the single hole flow meter directly to be installed on the relevant parameter that the single hole place measures single hole, improved the accuracy that single hole is measured, and do not need to change the software of monitor terminal, workable, portable strong, be applicable to domestic all types of coal mine safety monitoring system, have stronger promotional value.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (9)
1. colliery digitlization protrusion-dispelling extraction on-line monitoring system, it is characterized in that, comprise coal-bed gas pressure on-line monitoring module, single hole on-line monitoring module, discharge water on-line monitoring module and monitor terminal automatically, described coal-bed gas pressure on-line monitoring module, single hole on-line monitoring module, the on-line monitoring module that discharges water is connected with described monitor terminal respectively automatically;
Described single hole on-line monitoring module is the single hole flow meter that is used to be installed in the single hole place, and described single hole flow meter comprises the flow cell of the gas flow that is used to measure described single hole.
2. colliery digitlization protrusion-dispelling extraction on-line monitoring system according to claim 1 is characterized in that described single hole flow meter also comprises: the temperature unit that is used to measure the gas temperature of described single hole.
3. colliery digitlization protrusion-dispelling extraction on-line monitoring system according to claim 1 is characterized in that described single hole flow meter also comprises: the pressure unit that is used to measure the gas pressure of described single hole.
4. colliery digitlization protrusion-dispelling extraction on-line monitoring system according to claim 1 is characterized in that, also comprises: concentration sensor is used to measure the gas density of described single hole.
5. according to the arbitrary described colliery digitlization protrusion-dispelling extraction on-line monitoring system of claim 1～4, it is characterized in that described single hole flow is counted the precession vortex flowmeter.
6. colliery digitlization protrusion-dispelling extraction on-line monitoring system according to claim 5, it is characterized in that, comprise Temperature probe, pressure sensing head and flow meter integrating instrument in the described precession vortex flowmeter, described Temperature probe, pressure sensing head are arranged on the housing of described precession vortex flowmeter, and communicate with the fluid passage of described precession vortex flowmeter.
7. colliery digitlization protrusion-dispelling extraction on-line monitoring system according to claim 5 is characterized in that described coal-bed gas pressure on-line monitoring module is positive pressure sensor.
8. colliery digitlization protrusion-dispelling extraction on-line monitoring system according to claim 5 is characterized in that the described on-line monitoring module that discharges water automatically is automatic tailrace; Comprise liquid level sensor, water inlet check common valve, electronic pressure-relief valve and the non retern valve that discharges water in the described automatic tailrace, described liquid level sensor is connected with electronic pressure-relief valve, and described electronic pressure-relief valve is communicated with water inlet check common valve.
9. colliery digitlization protrusion-dispelling extraction on-line monitoring system according to claim 8 is characterized in that, communicates to connect between described water inlet check common valve and the monitor terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202593831U CN201896630U (en) | 2010-07-08 | 2010-07-08 | Coal-mine digital outburst prevention mining on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202593831U CN201896630U (en) | 2010-07-08 | 2010-07-08 | Coal-mine digital outburst prevention mining on-line monitoring system |
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| Publication Number | Publication Date |
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| CN201896630U true CN201896630U (en) | 2011-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202593831U Expired - Fee Related CN201896630U (en) | 2010-07-08 | 2010-07-08 | Coal-mine digital outburst prevention mining on-line monitoring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107727163A (en) * | 2017-10-11 | 2018-02-23 | 迈格仪表(成都)有限公司 | A kind of control method and control system for steam type vortex precession flowmeter |
-
2010
- 2010-07-08 CN CN2010202593831U patent/CN201896630U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107727163A (en) * | 2017-10-11 | 2018-02-23 | 迈格仪表(成都)有限公司 | A kind of control method and control system for steam type vortex precession flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ViewSonic energy (Fukang) Coal Industry Co Ltd Assignor: National Engineering Research Center for Gas Controlling of Pingan Mine Contract record no.: 2013990000576 Denomination of utility model: Digital blow-out preventing extraction on-line monitoring system for coal mine Granted publication date: 20110713 License type: Common License Record date: 20130911 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| 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: 20110713 Termination date: 20190708 |