CN103615289A - Mine gas bundle pipeline monitoring system - Google Patents
Mine gas bundle pipeline monitoring system Download PDFInfo
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- CN103615289A CN103615289A CN201310585845.7A CN201310585845A CN103615289A CN 103615289 A CN103615289 A CN 103615289A CN 201310585845 A CN201310585845 A CN 201310585845A CN 103615289 A CN103615289 A CN 103615289A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 106
- 238000004891 communication Methods 0.000 claims abstract description 32
- 239000000523 sample Substances 0.000 claims description 29
- 238000005070 sampling Methods 0.000 claims description 15
- 238000013519 translation Methods 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 239000013307 optical fiber Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 14
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 230000003292 diminished effect Effects 0.000 abstract 1
- 238000013024 troubleshooting Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 42
- 239000003245 coal Substances 0.000 description 17
- 230000004907 flux Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 6
- 230000000740 bleeding effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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Abstract
The invention relates to a mine gas bundle pipeline monitoring system which comprises a power source, an air pump, a bundle pipe PLC (programmable logic control) cabinet and an industrial personal computer. The power source on a ground is electrically connected with the air pump. The mine gas bundle pipeline monitoring system is characterized in that the industrial personal computer is electrically connected with a signal conversion interface, bundle pipes of the bundle pipe PLC cabinet are connected with a plurality of underground branched boxes with external power boxes, and the signal conversion interface is connected with communication interfaces of the branched boxes by communication lines of the system. The mine gas bundle pipeline monitoring system has the advantages that the mine gas bundle pipeline monitoring system is combined with a monitoring method, so that faults of bundle pipelines can be assuredly timely and effectively cleared, the usability and the reliability of the mine gas bundle pipeline monitoring system can be improved, a bundle pipeline troubleshooting range can be greatly diminished, and maintenance staff can accurately determine properties of the faults of the pipelines and particular locations where the faults of the pipelines occur according to displayed contents of the industrial personal computer, alarm information of audible alarms and real-time data and working states which are displayed on real-time data display windows and real-time working state windows.
Description
Affiliated technical field
The present invention relates to coal mine underground gas Tube Bundle Monitoring System, relate in particular to mine gas beam tube pipeline monitoring system.
Background technology
At present, home and abroad colliery down-hole forecast spontaneous fire mainly adopts eudiometry, and main way of realization is to use beam tube monitoring system for gases in coal mine, can provide gas preventing and control foundation simultaneously.Universal and extensive use in China's coal-mine.In mine main, carrying out conventional prediction, is disaster relief service in mine disaster relief period.Basic principle is from ground, to lay multichannel beam tube to need monitoring place to coal work place or goaf etc., utilizes vacuum air pump that sample gas is evacuated to ground gas chromatograph and carries out gas composition analysis, according to CO, CH
4, C
2h
4, O
2deng the temperature of gas composition change calculations sampled point etc., realize the early prediction to mine spontaneous combustion fire, also can be used to carry out that mine flammable gas explosion is dangerous, the identification of fire hazard degree.Beam tube monitoring system for gases in coal mine goes wrong and the highest part of fault rate is the beam tube pipeline portions of beam tube monitoring system for gases in coal mine, because beam tube pipeline number is more, long to gas production place, down-hole circuit by ground, beam tube shunt case, snap joint are more, beam tube is originally less as plastic material and caliber, the easy ponding of beam tube pipeline, laying dust cause beam tube pipeline blockage fault, even occur that beam tube pipeline blocks fault; Ore deposit Rock in Well or coal avalanche and mechanical collision have beam tube pipeline principal fault to occur, even cause the open circuit fault of beam tube pipeline fracture, current without any effective alarm mechanism to this, cause beam tube monitoring system for gases in coal mine testing result to differ and be decided to be true value, have a strong impact on beam tube monitoring system for gases in coal mine availability and reliability.At present beam tube monitoring system for gases in coal mine beam tube pipeline adopts that maintenance personal is irregular carries out pipeline inspection, the personnel of monitoring can be according to the situation of the manometric negative pressure value judgement of ground switch board pipeline simultaneously, when lowering suddenly, negative pressure value illustrates that the gas leak phenomenon that opens circuit has appearred in pipeline, when negative pressure value increases, illustrate that obstruction has occurred pipeline.By ground pressure table, change and can qualitatively find out the fault that pipeline exists, but it is very difficult specifically to search circuit failure point, need attendant that beam tube pipeline is searched from the beginning to the end, general beam tube length of pipe reaches more than more than ten kilometers, time-consuming, effort that the numerous maintenances of pipeline number are got up, overall efficiency is low, has affected the Real-Time Monitoring of beam tube monitoring system for gases in coal mine to coal mine underground gas, has the possibility of the security incident of causing.The beam tube monitoring system for gases in coal mine that has the mine gas beam tube pipeline of automatic monitoring beam tube circuit failure function monitoring system, in order to guarantee safety in production, is badly in need of having in colliery.
Summary of the invention
For overcoming the deficiency of the above technical disadvantages of existing beam tube monitoring system for gases in coal mine and existence, guarantee the timely and effective eliminating of beam tube circuit failure, guarantee beam tube monitoring system for gases in coal mine availability and reliability.
The invention provides a kind of mine gas beam tube pipeline monitoring system, it comprises that ground power source is electrically connected to aspiration pump, the beam tube switch board of PLC control able to programme, Industrial Personal Computer (IPC), feature is: Industrial Personal Computer (IPC) is electrically connected to signal translation interface, the beam tube switch board beam tube connecting downhole of PLC control able to programme is furnished with some shunt cases of external power supply case, and signal translation interface is connected the communication interface of some shunt cases by system communication line.
Wherein: in shunt case, be provided with single-chip microcomputer and be electrically connected to respectively communication interface, external power supply case, real time data display window, real-time working status window, voice guard, single-chip microcomputer is also electrically connected to respectively flow transmitter probe, the pressure sensor probe being arranged in each single beam tube joint.
Wherein: single beam tube joint comprises with the give vent to anger branching unit top of interface of beam tube pipeline single channel intake interface, beam tube pipeline single channel, with the branching unit bottom of reservoir chamber, dewatering outlet, discharging valve, built-in water strainer, branching unit top and branching unit bottom are fixed by retaining thread.
Wherein: in shunt case, be provided with single-chip microcomputer and be electrically connected to respectively communication interface, external power supply case, real time data display window, real-time working status window, voice guard, single-chip microcomputer is also electrically connected to respectively the flow transmitter probe be arranged on in the flow measurement air chamber of beam tube pipeline single channel intake interface, is arranged on the pressure sensor probe of giving vent to anger in the pressure measxurement air chamber of interface with beam tube pipeline single channel.
Wherein: shunt case is connected to gas-monitoring point sampling entrance by beam tube.
Wherein: system communication line is cable or optical fiber.
Wherein: in beam tube switch board, be also provided with single-chip microcomputer and be electrically connected to respectively communication interface, real time data display window, real-time working status window, voice guard, single-chip microcomputer is also electrically connected to respectively flow transmitter probe, the pressure sensor probe being arranged in each single beam tube joint.
A kind of monitoring method of mine gas beam tube pipeline monitoring system is introduced in convenient understanding,
1. first carry out beam tube pipeline air tight test, after mine gas beam tube pipeline monitoring system is installed, gas-monitoring point sampling entrance is closed, beam tube switch board and aspiration pump by the control able to programme of Industrial Personal Computer (IPC) control PLC are bled to gas-monitoring point single channel beam tube, when the beam tube switch board place negative pressure of observing PLC control able to programme reaches high negative pressure, by Industrial Personal Computer (IPC), closed the beam tube switch board one minute of PLC control able to programme, the unchanged identification gas-monitoring point of the negative pressure value place, beam tube switch board place of now PLC control able to programme is good to beam tube pipeline tightness between the beam tube switch board of PLC control able to programme, feature is:
2. carry out system calibrating, gas-monitoring point sampling entrance is opened, by the beam tube switch board of Industrial Personal Computer (IPC) control PLC control able to programme and aspiration pump to the operation of bleeding of gas-monitoring point place, on Industrial Personal Computer (IPC), show that gas-monitoring puts ground beam tube single channel pipeline in real-time pressure and the data on flows at the beam tube switch board place of each shunt case and PLC control able to programme and be stored under corresponding pipeline label, obtain gas-monitoring and put ground beam tube single channel pipeline at the system pressure calibration value P at each shunt case place
iwith flux scale definite value Q
i, gas-monitoring is put ground beam tube single channel pipeline at the system pressure calibration value P at the beam tube switch board place of PLC control able to programme
0with flux scale definite value Q
0,
3. the Real-Time Monitoring of mine gas beam tube pipeline monitoring system, during system works, Industrial Personal Computer (IPC) is by the force value p at each shunt case place of signal translation interface Real-time Collection
i(I>=i>=1) and flow value q
i(I>=i>=1) is also stored under corresponding pipeline label, and wherein a minute bobbin carriage number for label pipeline process is I, gathers the force value p at the beam tube switch board place of PLC control able to programme simultaneously
0with flow value q
0and be stored under corresponding pipeline label, calculate Δ p
i=p
i-P
i(I>=i>=0), Δ q
i=q
i-Q
i(I>=i>=0) value, when | Δ p
i|≤P
i* 5% or | Δ q
i|≤Q
iin the time of * 5%, (I>=i>=0) represents that pipe-line system is working properly,
When | Δ p
i| > P
iin the time of * 5%, calculate | (p
i-p
i+1 ) | value (I > i>=0), as | (p
i-p
i+1 ) | value maximum, i.e. max | (p
i-p
i+1 ) | time, assert that between i to the i+1 shunt case, beam tube pipeline blocks fault or plugging fault, be specially and work as p
i+1≈ 0 and q
i+1during ≈ 0 (I > i>=0), judge that between i and i+1 shunt case, beam tube pipeline blocks fault, Industrial Personal Computer (IPC) and voice guard are reported to the police,
Work as p
i-1≈ 0 and q
i-1during ≈ 0 (I>=i>=1), judge that between i and i-1 shunt case, beam tube pipeline blocks fault, Industrial Personal Computer (IPC) and voice guard are reported to the police,
When | Δ p
i+1| > P
i+1in the time of * 5% (I > i>=0), judge beam tube pipeline blockage fault between i and i+1 shunt case, Industrial Personal Computer (IPC) and voice guard are reported to the police,
When | Δ p
i-1| > P
i-1in the time of * 5% (I>=i>=1), judge beam tube pipeline blockage fault between i and i-1 shunt case, Industrial Personal Computer (IPC) and voice guard are reported to the police,
When | Δ q
i| > Q
iin the time of * 5%, calculate | (q
i-q
i+1 ) | value (I > i>=0), as | (q
i-q
i+1 ) | value maximum, i.e. max | (q
i-q
i+1 ) | time, assert beam tube pipeline open circuit fault or principal fault between i to the i+1 shunt case, be specially and work as q
i+1≈ 0 and p
i+1during ≈ 0 (I > i>=0), judge beam tube pipeline open circuit fault between i and i+1 shunt case, Industrial Personal Computer (IPC) and voice guard are reported to the police,
Work as q
i-1≈ 0 and p
i-1during ≈ 0 (I>=i>=1), judge beam tube pipeline open circuit fault between i and i-1 shunt case, Industrial Personal Computer (IPC) and voice guard are reported to the police,
When | Δ q
i+1| > q
i+1in the time of * 5% (I > i>=0), judge beam tube pipeline principal fault between i and i+1 shunt case, Industrial Personal Computer (IPC) and voice guard are reported to the police,
When | Δ q
i-1| > q
i-1in the time of * 5% (I>=i>=1), judge beam tube pipeline open circuit fault between i and i-1 shunt case, Industrial Personal Computer (IPC) and voice guard are reported to the police,
Real time data and duty, show at Industrial Personal Computer (IPC), real time data display window and implementation status window simultaneously.
The invention has the beneficial effects as follows a kind of mine gas beam tube pipeline monitoring system is provided, in conjunction with monitoring method, guarantee the timely and effective eliminating of beam tube circuit failure, beam tube monitoring system for gases in coal mine availability and reliability have been improved, the fault having realized between two shunt cases is determined, determined nature of trouble simultaneously, greatly dwindled beam tube circuit failure investigation scope, maintenance personal reports to the police according to voice guard, real time data and duty in real time data display window and the demonstration of real-time working status window, can determine exactly circuit failure scope, be conducive to forecast spontaneous fire under coal mine, better carry out mine flammable gas explosion dangerous, the identification of fire hazard degree, gas preventing and control foundation is provided, guaranteed Safety of Coal Mine Production.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 structural principle schematic diagram of the present invention.
Single beam tube pipeline monitoring principle schematic diagram in Fig. 2 first embodiment of the invention shunt case.
Single beam tube pipeline monitoring principle schematic diagram in Fig. 3 second embodiment of the invention shunt case.
1. single-chip microcomputers in figure, 2. communication interface, 10. beam tube pipeline single channel intake interface, 11. flow transmitter probes, 12. flow measurement air chambers, 13. flow sensor signals and power line, 14. branching unit bottoms, 15. power supplys, 16. Industrial Personal Computer (IPC)s, 17. aspiration pumps, 18. beam tube switch boards, 19. ground, 20. discharging valves, 21. dewatering outlets, 22. water strainers, 23. branching unit tops, 24. retaining threads, 25. reservoir chambers, 27. signal translation interfaces, 31. pressure measxurement air chambers, 32. pressure sensor probes, the 33. beam tube pipeline single channel interface of giving vent to anger, 34. pressure sensor signals and power line, 41. real time data display windows, 42. real-time working status windows, 43. voice guards, 51. work planes, 52. upper corners, 53. goafs, 54. return airways, 61. external power supply casees four, 62. external power supply casees five, 63. external power supply casees one, 64. external power supply casees two, 65. external power supply casees three, 80. system communication lines, 81. beam tube pipelines, 82. down-holes, 91. shunt cases three, 92. shunt cases two, 93. shunt cases one, 94. shunt cases four, 95. shunt cases five.
The specific embodiment
the first embodiment, referring to Fig. 1, Fig. 2, a kind of mine gas beam tube pipeline monitoring system, it comprises that ground 19 power sources 15 are electrically connected to aspiration pump 17, the beam tube switch board 18 of PLC control able to programme, Industrial Personal Computer (IPC) 16, feature is: Industrial Personal Computer (IPC) 16 is electrically connected to signal translation interface 27, the beam tube switch board 18 beam tube connecting downholes 82 of PLC control able to programme are furnished with external power supply case 1, external power supply case 2 64, external power supply case 3 65, external power supply case 4 61, the shunt case 1 of external power supply case 5 62, shunt case 2 92, shunt case 3 91, shunt case 4 94, shunt case 5 95, signal translation interface 27 is connected the communication interface 2 of each shunt case by system communication line 80.Shunt case number and external power supply case number are determined according to actual needs.
Wherein: in shunt case, be provided with single-chip microcomputer 1 and be electrically connected to respectively communication interface 2, external power supply case, real time data display window 41, real-time working status window 42, voice guard 43, single-chip microcomputer 1 is also electrically connected to respectively by flow sensor signal and power line 13 and pressure sensor signal and power line 34 flow transmitter probe 11, the pressure sensor probe 32 being arranged in each single beam tube joint.
Wherein: single beam tube joint comprises with the give vent to anger branching unit top 23 of interface 33 of beam tube pipeline single channel intake interface 10, beam tube pipeline single channel, with the branching unit bottom 14 of reservoir chamber 25, dewatering outlet 21, discharging valve 20, built-in water strainer 22, branching unit top 23 and branching unit bottom 14 are fixed by retaining thread 24.
Wherein: shunt case 3 91 is connected to gas-monitoring point work plane 51, upper corner 52 sampling entrances by beam tube, shunt case 5 95 is connected to gas-monitoring point goaf 53, return airway 54 sampling entrances by beam tube, and gas-monitoring point is determined according to actual needs.
Wherein: system communication line 80 is cable.
Wherein: in beam tube switch board 18, be also provided with single-chip microcomputer 1 and be electrically connected to respectively communication interface 2, real time data display window 41, real-time working status window 42, voice guard 43, single-chip microcomputer 1 is also electrically connected to respectively flow transmitter probe 11, the pressure sensor probe 32 being arranged in each single beam tube joint.
the second embodiment, referring to Fig. 1, Fig. 3, a kind of mine gas beam tube pipeline monitoring system, it comprises that ground 19 power sources 15 are electrically connected to aspiration pump 17, the beam tube switch board 18 of PLC control able to programme, Industrial Personal Computer (IPC) 16, feature is: Industrial Personal Computer (IPC) 16 is electrically connected to signal translation interface 27, the beam tube switch board 18 beam tube connecting downholes 82 of PLC control able to programme are furnished with external power supply case 1, external power supply case 2 64, external power supply case 3 65, external power supply case 4 61, the shunt case 1 of external power supply case 5 62, shunt case 2 92, shunt case 3 91, shunt case 4 94, shunt case 5 95, signal translation interface 27 is connected the communication interface 2 of each shunt case by system communication line 80.Shunt case number and external power supply case number are determined according to actual needs.
Wherein: in shunt case, be provided with single-chip microcomputer 1 and be electrically connected to respectively communication interface 2, external power supply case, real time data display window 41, real-time working status window 42, voice guard 43, single-chip microcomputer 1 is also electrically connected to respectively by flow sensor signal and power line 13 and pressure sensor signal and power line 34 the flow transmitter probe 11 being arranged on in the flow measurement air chamber 12 of beam tube pipeline single channel intake interface 10, is arranged on the pressure sensor probe 32 of giving vent to anger in the pressure measxurement air chamber 31 of interface 33 with beam tube pipeline single channel.
Wherein: single beam tube joint comprises with the give vent to anger branching unit top 23 of interface 33 of beam tube pipeline single channel intake interface 10, beam tube pipeline single channel, with the branching unit bottom 14 of reservoir chamber 25, dewatering outlet 21, discharging valve 20, built-in water strainer 22, branching unit top 23 and branching unit bottom 14 are fixed by retaining thread 24.
Wherein: shunt case 3 91 is connected to gas-monitoring point work plane 51, upper corner 52 sampling entrances by beam tube, shunt case 5 95 is connected to gas-monitoring point goaf 53, return airway 54 sampling entrances by beam tube, and gas-monitoring point is determined according to actual needs.
Wherein: system communication line 80 is optical fiber.
Wherein: in beam tube switch board 18, be also provided with single-chip microcomputer 1 and be electrically connected to respectively communication interface 2, real time data display window 41, real-time working status window 42, voice guard 43, single-chip microcomputer 1 is also electrically connected to respectively flow transmitter probe 11, the pressure sensor probe 32 being arranged in each single beam tube joint.
A kind of monitoring method the first embodiment of mine gas beam tube pipeline monitoring system is introduced in convenient understanding, referring to Fig. 1, Fig. 2, Fig. 3, a kind of monitoring method of mine gas beam tube pipeline monitoring system, 1. first carry out beam tube pipeline air tight test, after mine gas beam tube pipeline monitoring system is installed, gas-monitoring is put to work plane 51 sampling entrances closes, beam tube switch board 18 and 17 pairs of gas-monitoring point work planes of aspiration pump, 51 single channel beam tubes by the control able to programme of Industrial Personal Computer (IPC) 16 control PLC are bled, when beam tube switch board 18 place's negative pressure of observing PLC control able to programme reach high negative pressure, by Industrial Personal Computer (IPC) 16, closed the beam tube switch board 18 1 minutes of PLC control able to programme, beam tube switch board 18 place's negative pressure value unchanged identification gas-monitoring point work plane 51 places of now PLC control able to programme are good to beam tube pipeline tightness between the beam tube switch board 18 of PLC control able to programme, according to above same procedure to gas-monitoring point upper corner 52, goaf 53, return airway 54 carries out same beam tube pipeline air tight test, feature is:
2. carry out system calibrating, gas-monitoring point work plane 51 sampling entrances are opened, by the operation of bleeding of the beam tube switch board 18 of Industrial Personal Computer (IPC) 16 control PLC control able to programme and 17 pairs of gas-monitoring point work plane 51 places of aspiration pump, on Industrial Personal Computer (IPC) 16, show gas-monitoring point work plane 51 to ground beam tube single channel pipeline at shunt case 3 91, shunt case 2 92, shunt case 1, with real-time pressure and the data on flows at beam tube switch board 18 places of PLC control able to programme and be stored under corresponding pipeline label, obtain gas-monitoring point work plane 51 and arrive ground beam tube single channel pipeline at shunt case 1, shunt case 2 92, the system pressure calibration value P at shunt case 3 91 places
iwith flux scale definite value Q
i, gas-monitoring point work plane 51 is the system pressure calibration value P at beam tube switch board 18 places of PLC control able to programme to ground beam tube single channel pipeline
0with flux scale definite value Q
0, use the same method gas-monitoring point upper corner 52, goaf 53, return airway 54 are carried out to system calibrating, obtain corresponding pressure calibration value and flux scale definite value.
3. the Real-Time Monitoring of mine gas beam tube pipeline monitoring system, monitors gas-monitoring point work plane 51, and during system works, Industrial Personal Computer (IPC) 16 is by the force value p at signal translation interface 27 Real-time Collection shunt cases 1, shunt case 2 92, shunt case 3 91 places
i(3>=i>=1) and flow value q
i(3>=i>=1) is also stored under corresponding pipeline label, and wherein a minute bobbin carriage number for label pipeline process is I=3, gathers the force value p at the beam tube switch board place of PLC control able to programme simultaneously
0with flow value q
0and be stored under corresponding pipeline label, calculate Δ p
i=p
i-P
i(3>=i>=0), Δ q
i=q
i-Q
i(3>=i>=0) value, when | Δ p
i|≤P
i* 5% or | Δ q
i|≤Q
iin the time of * 5%, (3>=i>=0) represents that pipe-line system is working properly,
When | Δ p
i| > P
iin the time of * 5%, calculate | (p
i-p
i+1 ) | value (3 > i>=0), as | (p
i-p
i+1 ) | value maximum, i.e. max | (p
i-p
i+1 ) | time, assert that between i to the i+1 shunt case, beam tube pipeline blocks fault or plugging fault, be specially and work as p
i+1≈ 0 and q
i+1during ≈ 0 (3 > i>=0), judge that between i and i+1 shunt case, beam tube pipeline blocks fault, Industrial Personal Computer (IPC) and voice guard are reported to the police,
Work as p
i-1≈ 0 and q
i-1during ≈ 0 (3>=i>=1), judge that between i and i-1 shunt case, beam tube pipeline blocks fault, Industrial Personal Computer (IPC) and voice guard are reported to the police,
When | Δ p
i+1| > P
i+1in the time of * 5% (3 > i>=0), judge beam tube pipeline blockage fault between i and i+1 shunt case, Industrial Personal Computer (IPC) and voice guard are reported to the police,
When | Δ p
i-1| > P
i-1in the time of * 5% (3>=i>=1), judge beam tube pipeline blockage fault between i and i-1 shunt case, Industrial Personal Computer (IPC) and voice guard are reported to the police,
When | Δ q
i| > Q
iin the time of * 5%, calculate | (q
i-q
i+1 ) | value (3 > i>=0), as | (q
i-q
i+1 ) | value maximum, i.e. max | (q
i-q
i+1 ) | time, assert beam tube pipeline open circuit fault or principal fault between i to the i+1 shunt case, be specially and work as q
i+1≈ 0 and p
i+1during ≈ 0 (3 > i>=0), judge beam tube pipeline open circuit fault between i and i+1 shunt case, Industrial Personal Computer (IPC) and voice guard are reported to the police,
Work as q
i-1≈ 0 and p
i-1during ≈ 0 (3>=i>=1), judge beam tube pipeline open circuit fault between i and i-1 shunt case, Industrial Personal Computer (IPC) and voice guard are reported to the police,
When | Δ q
i+1| > q
i+1in the time of * 5% (3 > i>=0), judge beam tube pipeline principal fault between i and i+1 shunt case, Industrial Personal Computer (IPC) and voice guard are reported to the police,
When | Δ q
i-1| > q
i-1in the time of * 5% (3>=i>=1), judge beam tube pipeline open circuit fault between i and i-1 shunt case, Industrial Personal Computer (IPC) and voice guard are reported to the police,
Real time data and duty, show at Industrial Personal Computer (IPC) 16, real time data display window 41 and implementation status window 42 simultaneously.
A kind of monitoring method the second embodiment of mine gas beam tube pipeline monitoring system is introduced in convenient understanding, referring to Fig. 1, Fig. 2, Fig. 3, a kind of monitoring method of mine gas beam tube pipeline monitoring system, 1. first carry out beam tube pipeline air tight test, after mine gas beam tube pipeline monitoring system is installed, gas-monitoring is put to return airway 54 sampling entrances closes, beam tube switch board 18 and 17 pairs of gas-monitoring point return airways of aspiration pump, 54 single channel beam tubes by the control able to programme of Industrial Personal Computer (IPC) 16 control PLC are bled, when beam tube switch board 18 place's negative pressure of observing PLC control able to programme reach high negative pressure, by Industrial Personal Computer (IPC) 16, closed the beam tube switch board 18 1 minutes of PLC control able to programme, beam tube switch board 18 place's negative pressure value unchanged identification gas-monitoring point return airway 54 places of now PLC control able to programme are good to beam tube pipeline tightness between the beam tube switch board 18 of PLC control able to programme, according to above same procedure to gas-monitoring point upper corner 52, goaf 53, work plane 51 carries out same beam tube pipeline air tight test, feature is:
2. carry out system calibrating, gas-monitoring point return airway 54 sampling entrances are opened, by the operation of bleeding of the beam tube switch board 18 of Industrial Personal Computer (IPC) 16 control PLC control able to programme and 17 pairs of gas-monitoring point return airway 54 places of aspiration pump, on Industrial Personal Computer (IPC) 16, show gas-monitoring point return airway 54 to ground beam tube single channel pipeline at shunt case 5 95, shunt case 4 94, shunt case 3 91, shunt case 2 92, shunt case 1, with real-time pressure and the data on flows at beam tube switch board 18 places of PLC control able to programme and be stored under corresponding pipeline label, obtain gas-monitoring point return airway 54 and arrive ground beam tube single channel pipeline at shunt case 1, shunt case 2 92, shunt case 3 91, shunt case 4 94, the system pressure calibration value P at shunt case 5 95 places
iwith flux scale definite value Q
i, gas-monitoring point return airway 54 is the system pressure calibration value P at beam tube switch board 18 places of PLC control able to programme to ground beam tube single channel pipeline
0with flux scale definite value Q
0, use the same method gas-monitoring point upper corner 52, goaf 53, work plane 51 are carried out to system calibrating, obtain corresponding pressure calibration value and flux scale definite value.
3. the Real-Time Monitoring of mine gas beam tube pipeline monitoring system, gas-monitoring point return airway 54 is monitored, and during system works, Industrial Personal Computer (IPC) 16 is by the force value p at signal translation interface 27 Real-time Collection shunt cases 1, shunt case 2 92, shunt case 3 91, shunt case 4 94, shunt case 5 95 places
i(5>=i>=1) and flow value q
i(5>=i>=1) is also stored under corresponding pipeline label, and wherein a minute bobbin carriage number for label pipeline process is I=5, gathers the force value p at the beam tube switch board place of PLC control able to programme simultaneously
0with flow value q
0and be stored under corresponding pipeline label, calculate Δ p
i=p
i-P
i(5>=i>=0), Δ q
i=q
i-Q
i(5>=i>=0) value, when | Δ p
i|≤P
i* 5% or | Δ q
i|≤Q
iin the time of * 5%, (5>=i>=0) represents that pipe-line system is working properly,
When | Δ p
i| > P
iin the time of * 5%, calculate | (p
i-p
i+1 ) | value (5 > i>=0), as | (p
i-p
i+1 ) | value maximum, i.e. max | (p
i-p
i+1 ) | time, assert that between i to the i+1 shunt case, beam tube pipeline blocks fault or plugging fault, be specially and work as p
i+1≈ 0 and q
i+1during ≈ 0 (5 > i>=0), judge that between i and i+1 shunt case, beam tube pipeline blocks fault, Industrial Personal Computer (IPC) and voice guard are reported to the police,
Work as p
i-1≈ 0 and q
i-1during ≈ 0 (5>=i>=1), judge that between i and i-1 shunt case, beam tube pipeline blocks fault, Industrial Personal Computer (IPC) and voice guard are reported to the police,
When | Δ p
i+1| > P
i+1in the time of * 5% (5 > i>=0), judge beam tube pipeline blockage fault between i and i+1 shunt case, Industrial Personal Computer (IPC) and voice guard are reported to the police,
When | Δ p
i-1| > P
i-1in the time of * 5% (5>=i>=1), judge beam tube pipeline blockage fault between i and i-1 shunt case, Industrial Personal Computer (IPC) and voice guard are reported to the police,
When | Δ q
i| > Q
iin the time of * 5%, calculate | (q
i-q
i+1 ) | value (5 > i>=0), as | (q
i-q
i+1 ) | value maximum, i.e. max | (q
i-q
i+1 ) | time, assert beam tube pipeline open circuit fault or principal fault between i to the i+1 shunt case, be specially and work as q
i+1≈ 0 and p
i+1during ≈ 0 (5 > i>=0), judge beam tube pipeline open circuit fault between i and i+1 shunt case, Industrial Personal Computer (IPC) and voice guard are reported to the police,
Work as q
i-1≈ 0 and p
i-1during ≈ 0 (5>=i>=1), judge beam tube pipeline open circuit fault between i and i-1 shunt case, Industrial Personal Computer (IPC) and voice guard are reported to the police,
When | Δ q
i+1| > q
i+1in the time of * 5% (5 > i>=0), judge beam tube pipeline principal fault between i and i+1 shunt case, Industrial Personal Computer (IPC) and voice guard are reported to the police,
When | Δ q
i-1| > q
i-1in the time of * 5% (5>=i>=1), judge beam tube pipeline open circuit fault between i and i-1 shunt case, Industrial Personal Computer (IPC) and voice guard are reported to the police,
Real time data and duty, show at Industrial Personal Computer (IPC) 16, real time data display window 41 and implementation status window 42 simultaneously.
In the Industrial Personal Computer (IPC) 16 of above technology in a kind of mine gas beam tube pipeline monitoring system and single-chip microcomputer 1, programming realizes.
Single tube quantity or gas-monitoring point quantity that the present invention relates in actual monitoring reach tens of roads, and it is common that shunt case reaches more than ten, and the gas-monitoring point of large quantity and a large amount of shunt case settings, more can embody beneficial effect of the present invention.
Claims (9)
1. a mine gas beam tube pipeline monitoring system, it comprises that ground power source is electrically connected to aspiration pump, the beam tube switch board of PLC control able to programme, Industrial Personal Computer (IPC), be characterised in that: Industrial Personal Computer (IPC) is electrically connected to signal translation interface, the beam tube switch board beam tube connecting downhole of PLC control able to programme is furnished with some shunt cases of external power supply case, and signal translation interface is connected the communication interface of some shunt cases by system communication line.
2. a kind of mine gas beam tube pipeline monitoring system according to claim 1, be characterised in that: in shunt case, be provided with single-chip microcomputer and be electrically connected to respectively communication interface, external power supply case, real time data display window, real-time working status window, voice guard, single-chip microcomputer is also electrically connected to respectively flow transmitter probe, the pressure sensor probe being arranged in each single beam tube joint.
3. a kind of mine gas beam tube pipeline monitoring system according to claim 1, be characterised in that: single beam tube joint comprises with the give vent to anger branching unit top of interface of beam tube pipeline single channel intake interface, beam tube pipeline single channel, with the branching unit bottom of reservoir chamber, dewatering outlet, discharging valve, built-in water strainer, branching unit top and branching unit bottom are fixed by retaining thread.
4. a kind of mine gas beam tube pipeline monitoring system according to claim 2, be characterised in that: single beam tube joint comprises with the give vent to anger branching unit top of interface of beam tube pipeline single channel intake interface, beam tube pipeline single channel, with the branching unit bottom of reservoir chamber, dewatering outlet, discharging valve, built-in water strainer, branching unit top and branching unit bottom are fixed by retaining thread.
5. a kind of mine gas beam tube pipeline monitoring system according to claim 1, be characterised in that: in shunt case, be provided with single-chip microcomputer and be electrically connected to respectively communication interface, external power supply case, real time data display window, real-time working status window, voice guard, single-chip microcomputer is also electrically connected to respectively the flow transmitter probe being arranged on in the flow measurement air chamber of beam tube pipeline single channel intake interface, be arranged on the pressure sensor probe of giving vent to anger in the pressure measxurement air chamber of interface with beam tube pipeline single channel, shunt case is connected to gas-monitoring point sampling entrance by beam tube, system communication line is cable or optical fiber.
6. a kind of mine gas beam tube pipeline monitoring system according to claim 2, be characterised in that: in shunt case, be provided with single-chip microcomputer and be electrically connected to respectively communication interface, external power supply case, real time data display window, real-time working status window, voice guard, single-chip microcomputer is also electrically connected to respectively the flow transmitter probe being arranged on in the flow measurement air chamber of beam tube pipeline single channel intake interface, be arranged on the pressure sensor probe of giving vent to anger in the pressure measxurement air chamber of interface with beam tube pipeline single channel, shunt case is connected to gas-monitoring point sampling entrance by beam tube, system communication line is cable or optical fiber.
7. a kind of mine gas beam tube pipeline monitoring system according to claim 3, be characterised in that: in shunt case, be provided with single-chip microcomputer and be electrically connected to respectively communication interface, external power supply case, real time data display window, real-time working status window, voice guard, single-chip microcomputer is also electrically connected to respectively the flow transmitter probe being arranged on in the flow measurement air chamber of beam tube pipeline single channel intake interface, be arranged on the pressure sensor probe of giving vent to anger in the pressure measxurement air chamber of interface with beam tube pipeline single channel, shunt case is connected to gas-monitoring point sampling entrance by beam tube, system communication line is cable or optical fiber.
8. a kind of mine gas beam tube pipeline monitoring system according to claim 4, be characterised in that: in shunt case, be provided with single-chip microcomputer and be electrically connected to respectively communication interface, external power supply case, real time data display window, real-time working status window, voice guard, single-chip microcomputer is also electrically connected to respectively the flow transmitter probe being arranged on in the flow measurement air chamber of beam tube pipeline single channel intake interface, be arranged on the pressure sensor probe of giving vent to anger in the pressure measxurement air chamber of interface with beam tube pipeline single channel, shunt case is connected to gas-monitoring point sampling entrance by beam tube, system communication line is cable or optical fiber.
9. according to a kind of mine gas beam tube pipeline monitoring system described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8, be characterised in that: in beam tube switch board, be also provided with single-chip microcomputer and be electrically connected to respectively communication interface, real time data display window, real-time working status window, voice guard, single-chip microcomputer is also electrically connected to respectively flow transmitter probe, the pressure sensor probe being arranged in each single beam tube joint.
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Effective date of registration: 20190102 Address after: 113122 No. 11 Binhe Road, Fushun Economic Development Zone, Liaoning Province Co-patentee after: China Shenhua Energy Co., Ltd. Patentee after: Co., Ltd of Shenyang research institute of Mei Ke group Co-patentee after: Fushun Chinacoal Kegong Safety Instrument Co., Ltd. Address before: 113122 No. 11 Binhe Road, Fushun Economic Development Zone, Liaoning Province Co-patentee before: Fushun Chinacoal Kegong Safety Instrument Co., Ltd. Patentee before: Co., Ltd of Shenyang research institute of Mei Ke group |