CN109026158A - Tunnel gas containing coal and ventilation condition remote real time monitoring device - Google Patents
Tunnel gas containing coal and ventilation condition remote real time monitoring device Download PDFInfo
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- CN109026158A CN109026158A CN201811114635.9A CN201811114635A CN109026158A CN 109026158 A CN109026158 A CN 109026158A CN 201811114635 A CN201811114635 A CN 201811114635A CN 109026158 A CN109026158 A CN 109026158A
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- 239000003245 coal Substances 0.000 title claims abstract description 66
- 238000009423 ventilation Methods 0.000 title claims abstract description 58
- 238000012806 monitoring device Methods 0.000 title claims abstract description 22
- 238000012544 monitoring process Methods 0.000 claims abstract description 78
- 238000010276 construction Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 230000000007 visual effect Effects 0.000 claims abstract description 20
- 238000005553 drilling Methods 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 16
- 238000004880 explosion Methods 0.000 claims description 13
- 238000005065 mining Methods 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 4
- 238000007639 printing Methods 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 109
- 238000005520 cutting process Methods 0.000 description 11
- 230000005611 electricity Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a kind of tunnel gas containing coal and ventilation condition remote real time monitoring devices, including monitoring host, it monitors host and 5 Monitor Sub-Station of Less is connected by data port, gas pressure Monitor Sub-Station of Less connects gas pressure sensor, gas concentration monitoring substation connects gas concentration sensor, ventilation monitoring substation connects wind speed wind direction sensor, the connection of construction power source Monitor Sub-Station of Less switchs the switch unit formed by power switch, water source switch and pressure wind, and sound-light alarm Monitor Sub-Station of Less connects combined aural and visual alarm.Four gas pressure sensors for being located at tunnel wall drilling hole bottom and three gas concentration sensors for being located at tunnel wall vault form gas monitor unit；Three wind speed wind direction sensors for being located at tunnel wall vault form wind speed and direction monitoring unit；Three power switch, water source switch and the pressure wind switch composition switch units for being located at tunnel wall；One combined aural and visual alarm for being located at tunnel wall side arch springing forms acousto-optic warning unit.5 meters of adjacent gas monitor unit interval, 20 meters of adjacent wind speed and direction monitoring unit interval, adjacent 100 meters of the combined aural and visual alarm interval at the arch springing of tunnel wall side, 1000 meters of adjacent switch unit interval.
Description
Technical field
The invention belongs to the actual measurement of the parameter of tunnel gas containing coal and the security fields of constructing tunnel and operational management, are related to
One kind tunnel gas containing coal and ventilation condition remote real time monitoring device.
Background technique
The case where in China, constructing tunnel is more and more frequent, and coal is encountered in constructing tunnel is also more and more, and tunnel is caused to be applied
Work gas accident is continuously increased.For this purpose, the real time measure of coal-bed gas parameter and ventilation parameter etc. is carried out to tunnel section containing coal, with
And early warning, alarm and cutting construction power source (electricity, water, pressure wind) of the parameter variation range etc. are particularly important.
Once encounter coal during constructing tunnel, the pernicious gases such as gas will be volatilized in coal, its is caused all to apply
Work sequence, technique, material, or even equipment etc. are many-sided will all to occur biggish change；Since technological means is backward, monitoring
The detection of the scarcities such as equipment, present Gas explosion burns and ventilation parameter etc. is all artificial circling measurment, and data are also manual record,
Especially under conditions of tunnel big cross section, inconvenience is brought to artificial detection, bring main problem is to check precision by ring
Border condition, human factor are affected, can not continuously monitor in real time the changing rule of gas pressure and gas density so as to
In the management of work progress, security risk is left to site operation.During constructing tunnel, ventilation parameter (wind speed, wind direction)
It is also the important parameter in construction, when wind speed of divulging information is less than normal or bigger than normal, easily causes methane accumulation accident, or endanger ring
Border, this is always ignored problem during constructing tunnel containing coal.As for tunnel gas containing coal and ventilation parameter variation
It is monitored, scene is substantially without relevant device；When Gas explosion burns and ventilation parameter exception, without early warning, alarm and cutting work
Make the construction power sources such as the power supply, water source and pressure wind in region；Personnel in the case where no early warning, do not cut again by construction power source
Break and work on, staff once has act of violating regulations at work, it will leads to the weight such as gas explosion and Gas Outburst
The generation of major break down, cause casualties, tunnel destroy and construction equipment damage, bring major hidden danger to safety in production.Therefore,
During constructing tunnel containing coal, it is necessary to reinforce the real-time monitoring to tunnel section containing coal gas situation and ventilation situation, when there is this
When a little parameters occur abnormal, the emergency measures such as early warning, alarm and cutting all working place construction power source can be taken, when extensive
Construction power source (electricity, water, pressure wind) etc. can be restored when multiple normal automatically again, it is ensured that construction personnel, equipment, material and entire tunnel
The production safety of road environment.
Summary of the invention
In order to achieve the above object, the present invention provides one kind tunnel gas containing coal and ventilation condition remote real time monitoring dress
It sets, remote real time monitoring working space gas pressure, gas density and ventilation wind speed, wind direction can be dense in gas pressure, gas
Early warning, alarm and cutting construction power source are carried out when degree and ventilation wind speed, wind direction exception, solve current tunnel gas containing coal and
Power source is constructed not in time without early warning, alarm and cutting when ventilation condition monitoring is manual, Gas explosion burns test abnormal with ventilation
The safety accident problem of equal initiations, the safety of effective guarantee constructing tunnel.
In order to solve the above technical problems, the technical scheme adopted by the invention is that, tunnel gas containing coal and ventilation condition are remote
Journey real-time monitoring device include monitoring host, data port, gas monitor unit, wind speed and direction monitoring unit, switch unit and
Sound-light alarm monitoring unit；The monitoring host is through data port and gas pressure Monitor Sub-Station of Less, gas concentration monitoring substation, logical
Wind Monitor Sub-Station of Less, construction power source Monitor Sub-Station of Less are connected with acousto-optic alert detecting substation；The gas monitor unit is same by being located at
Four gas pressure sensors of one perpendicular and three gas concentration sensor compositions；Have an area of in the tunnel tunnel wall of section containing coal
Segmental arc uniformly dissipates setting drilling, and four gas pressure sensors are uniformly distributed in drilling hole bottom, three gas concentration sensors
Uniform vertical is fixed on the tunnel tunnel wall vault of section containing coal, and is located at the top of gas concentration sensor and the tunnel wall of two sides
Distance≤300mm and tunnel wall side wall distance >=200mm；Drilling runs through tunnel wall, and foot of hole is coal body；The wind speed and wind
The wind speed wind direction sensor for being located at same perpendicular by three to monitoring unit forms, and three wind speed wind direction sensors are uniformly solid
It is scheduled on the tunnel tunnel wall vault of section containing coal；The switch unit is made of power switch, water source switch and pressure wind switch；First
Group switch unit is located in the tunnel wall of tunnel tunnel face, remaining is set in tunnel internal tunnel wall；Combined aural and visual alarm installation
At the arch springing of the tunnel wall side of tunnel section containing coal；The adjacent gas monitor unit interval is 5 meters, the adjacent wind speed and wind
To being divided into 20 meters between monitoring unit, wind speed and direction monitoring unit with away from nearest gas monitor unit at a distance of 2.5 meters, it is adjacent
It is divided into 100 meters between the combined aural and visual alarm, 1000 meters are divided between the adjacent switch unit, the gas pressure sensor passes through
Data line is connect with gas pressure Monitor Sub-Station of Less, and the gas concentration sensor is supervised by data line and gas density
Survey substation connection；The wind speed wind direction sensor is connect by data line with ventilation monitoring substation；The power switch, water
Source switch and pressure wind switch are connect by data line with construction power source Monitor Sub-Station of Less respectively；The combined aural and visual alarm passes through
Data line is connect with sound-light alarm Monitor Sub-Station of Less.
Further, the monitoring host is equipped with the printer for printing Gas explosion burns and ventilation parameter.
Further, the gas pressure sensor is PY204 pressure gauge, and range is 0~10MPa, precision is ±
0.2%, the response time≤5ms.
Further, the gas concentration sensor is national standard GJ4/40 coal mine high-low concentration methane sensor, range
It is low dense: (0.00~10.00) %CH4, highly concentrated: (10.0~100.0) %CH4。
Further, wind speed wind direction sensor is made of velocity sensor, wind transducer and sensor stand, and speed passes
Sensor and wind transducer are fixed in tunnel wall by sensor stand.
Further, the data port is KJ328-J mining information coffret.
Further, the gas pressure Monitor Sub-Station of Less, gas concentration monitoring substation, ventilation monitoring substation, construction power
Source Monitor Sub-Station of Less and acousto-optic alert detecting substation are KJ328-F mining monitoring substations.
Further, the combined aural and visual alarm is TLHD2L dual horn sound-light alarm.
Further, the power switch is KBZ-1000/1140/660 flame-proof type vacuum feed switch；It opens at the water source
Pass is the automatic water proof switch of ZDKS-2；The pressure wind switch is that ZDKF-1 is switched from dynamic pressure air control system.
Further, the velocity sensor range is 0~20m/s, and error range is ± 0.5m/s, has automatic adjustment
Zero point function and automatic adjustment sensitivity function；The wind transducer range is 0~360 °, and precision is ± 3 °；The sensing
Device bracket is made of sleeve and screw.
The invention has the advantages that tunnel gas containing coal and ventilation condition remote real time monitoring device, gas pressure is passed
The Gas explosion burns and ventilation parameter of sensor, gas concentration sensor and wind speed wind direction sensor monitoring tunnel section containing coal, utilize prison
Host is surveyed to be monitored and control；When gas, ventilation parameter exception, real-time early warning, alarm and cutting construction power source, comprehensively
Implement the real-time monitoring monitoring of the parameter of tunnel gas containing coal and ventilation parameter.It solves the current parameter of tunnel gas containing coal and leads to
When wind parameter etc. monitors manual, Gas explosion burns and ventilation parameter exception not in time without early warning, alarm and cutting construction power source
The safety accident problem of equal initiations, by gas situation and ventilation condition in monitoring host supervision tunnel, timely early warning, alarm are simultaneously
Control disconnection, closure, locking and the unlock of each construction power source switch, it is ensured that construction personnel, equipment, material and tunnel environment
Production safety.
Detailed description of the invention
Fig. 1 is tunnel gas containing coal and ventilation condition remote real time monitoring apparatus structure schematic diagram of the invention；
Fig. 2 is tunnel gas containing coal and ventilation condition remote real time monitoring device longitudinal sectional drawing of the invention；
Fig. 3 is I-I transverse cross-sectional view of tunnel gas containing coal and ventilation condition remote real time monitoring device of the invention；
Fig. 4 is II-II transverse cross-sectional view of tunnel gas containing coal and ventilation condition remote real time monitoring device of the invention；
Fig. 5 is III-III transverse cross-sectional view of tunnel gas containing coal and ventilation condition remote real time monitoring device of the invention.
In figure, 1. monitoring hosts, 2. data port, 3. printers, 4. gas pressure Monitor Sub-Station of Less, 5. gas concentration monitorings
Substation, 6. ventilation monitoring substations, 7. construction power source Monitor Sub-Station of Less, 8. sound-light alarm Monitor Sub-Station of Less, 9. gas pressure sensors,
10. gas concentration sensor, 11. wind speed wind direction sensors, 12. power switches, 13. water source switch, 14. pressure wind switches, 15. sound
Light crossing-signal, 16. tunnels, 17. tunnel walls, 18. country rocks, 19. coal bodies, 20. working faces, 21. data lines, 22. drillings.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Tunnel gas containing coal and ventilation condition remote real time monitoring device, as shown in Figure 1, including monitoring host 1, data terminal
Mouth 2, gas monitor unit, wind speed and direction monitoring unit, switch unit and acousto-optic alert detecting unit；Host 1 is monitored through data
Port 2 and gas pressure Monitor Sub-Station of Less 4, gas concentration monitoring substation 5, ventilation monitoring substation 6, construction power source Monitor Sub-Station of Less 7
It is connected with acousto-optic alert detecting substation 8；As shown in Fig. 2~Fig. 5, tunnel wall 17, coal body 19 are equipped between tunnel 16 and country rock 18
In country rock 18, monitoring device is arranged in the subsequent tunnel 16 of working face 20 in the present invention.Gas monitor unit is same by being located at
Four gas pressure sensors 9 and three gas concentration sensors 10 in one perpendicular form；Wherein, four gas pressures
Sensor 9 is uniformly distributed in the 22 bottom hole coal body of drilling of 16 dome portions of section containing coal of tunnel, and three gas concentration sensors 10 are equal
It is even to be vertically fixed on 16 dome portions of section containing coal of tunnel, and it is located at the gas concentration sensor 10 and tunnel of the two sides of tunnel arch foot containing coal
Wall 17 is more than or equal to 200mm apart from less than or equal to 300mm, with 17 side wall of tunnel wall distance；Drilling 22 runs through tunnel wall 17, bottom
Portion is coal body 19；Wind speed and direction monitoring unit is made of three wind speed wind direction sensors 11 being located in the same vertical plane, and three
A wind speed wind direction sensor 11 is evenly distributed on 17 dome portions of tunnel wall；Switch unit is by power switch 12,13 and of water source switch
Wind switch 14 is pressed to form, first group of switch unit is arranged in the tunnel wall 17 of 16 tunnel face of tunnel, remaining is set to tunnel 16
On internal tunnel wall 17；Combined aural and visual alarm 15 is mounted at the arch springing of 16 tunnel wall of section containing coal of tunnel, 17 side；Due to each watt
The measurement range of this monitoring unit can achieve 2.5 meters, and the measurement range of each wind speed and direction monitoring unit can achieve 10 meters,
Effective transmission data area of switch unit is 500 meters, so it is 5 meters that adjacent gas monitor unit interval, which is arranged, adjacent wind speed
Be divided into 20 meters between wind direction monitoring unit, wind speed and direction monitoring unit with away from nearest gas monitor unit at a distance of 2.5 meters, phase
Adjacent switch unit is set to 1000 meters；Furthermore, it is contemplated that downhole noise is larger, the sound transmission of combined aural and visual alarm 15 is effective
Range is selected as 50 meters, so being divided into 100 meters between adjacent combined aural and visual alarm 15.Gas pressure Monitor Sub-Station of Less 4 is transmitted by data
Line 21 connects gas pressure sensor 9, and gas concentration monitoring substation 5 connects gas concentration sensor by data line 21
10, ventilation monitoring substation 6 connects wind speed wind direction sensor 11 by data line 21, and construction power source Monitor Sub-Station of Less 7 passes through
Data line 21 connects power switch 12, water source switch 13 and pressure wind switch 14, sound-light alarm Monitor Sub-Station of Less 8 and is passed by data
Defeated line 21 connects combined aural and visual alarm 15.It monitors host 1 and is equipped with printer 3, the Gas explosion burns acquired for printing monitoring host 1
And ventilation parameter.
The range of gas pressure sensor 9 is 0~10MPa, and precision is ± 0.2%, and operating temperature is -20 °~85 °, wet
Spend 0~95%RH, response time≤5ms, stability≤± 0.15%FS/.
The range of gas concentration sensor 10 are as follows: low dense: (0.00~10.00) %CH4, it is highly concentrated: (10.0~100.0) %
CH4。
Velocity sensor monitors 16 wind speed of section containing coal of tunnel, and range is 0~20m/s, and error range is ± 0.5m/s, work
Environment temperature meets local temperature condition, has the function of to automatically adjust zero point and automatically adjusts sensitivity function, stability is good；Wind
Wind direction is monitored to sensor, range is 0~360 °, and precision is ± 3 °, and operating ambient temperature meets local temperature condition；Sensor
Bracket is made of sleeve and screw, plays fixed function.
In view of gas bulk density is lighter than air, gas is tended to accumulate at the top of 16 section containing coal of tunnel, so respectively in tunnel
A gas concentration sensor 10, gas pressure sensor 9 and wind speed and direction is equipped at 16 vaults of section containing coal and both sides arch springing to pass
Sensor 11, it is also contemplated that the problem of 16 coal seam of section containing coal of tunnel may be subjected to Geological Structure Effect, therefore in 16 section containing coal of tunnel
Top is equipped with 2 gas pressure sensors 9, and the gas pressure, gas at monitoring tunnel containing coal variation section methane accumulation place are dense
Degree and ventilation wind speed and direction.
Five Monitor Sub-Station of Less have two-way communication and working status indication function, cumulative amount acquisition and display function, and being used for will
Each sensor output signal is passed to data port 2, receives the control command that data port 2 transmits, and control combined aural and visual alarm
15 alarms and switch unit are respectively closed the switch and are disconnected；The hardware configuration of each Monitor Sub-Station of Less includes: central controller, data acquisition
And analysis processing circuit, host computer communication interface.
The model of data port 2 is KJ328-J mining information coffret, is easy to implement data electronization, data transmission
High-speeding；The model of Monitor Sub-Station of Less is KJ328-F mining monitoring substation, so that the compatibility of equipment is good；Gas pressure sensing
The model of device 9 is PY204 water proof type pressure sensor, and measurement error is small；The model of gas concentration sensor 10 is national standard GJ4/
40 coal mine high-low concentration methane sensors, effective measuring area is wide, precision is high；The model of air velocity transducer is DP-FS485,
Measuring accuracy height, fast response time；The model of combined aural and visual alarm 15 is the industrial combined aural and visual alarm of TLHD2L double horn, can be connected
It is continuous monitoring, small in size, light weight, easy to operate；The model of power switch 12 is the feedback of KBZ-1000/1140/660 explosion-proof vacuum
Electric switch, reliable performance effectively prevent " vacation power-off " phenomenon；The model for pressing wind switch 14 is that ZDKF-1 is opened from dynamic pressure air control system
It closes, easily uses, is easy to maintain；The model of water source switch 13 is the automatic water control switch of ZDKS-2, consumes low, strong shock resistance.
Monitoring host 1 is connected by data line 21 with each Monitor Sub-Station of Less, is acquired 16 section containing coal of tunnel in real time and was constructed
Journey Gas explosion burns and ventilation parameter, and acquisition data are stored, data collection interval is every 5 minutes primary, realizes tunnel 16
The real-time monitoring of section containing coal work progress Gas explosion burns and ventilation parameter.When Gas explosion burns and ventilation parameter exception, i.e. parameter
When reaching limits value, monitoring host 1 makes decisions, and sends a command to each Monitor Sub-Station of Less by data line 21, and then control
Combined aural and visual alarm 15 processed is alarmed, switch unit disconnects, and realizes abnormity early warning, alarm and cutting construction power source, in order to avoid exception thing
Therefore occur.
0.55MPa, gas density are reached by the gas pressure value that gas pressure Monitor Sub-Station of Less 4 acquires in monitoring host 1
The gas concentration that Monitor Sub-Station of Less 5 acquires reaches 0.5%CH4Or ventilation monitoring substation 6 acquire wind speed be lower than 0.25m/s when,
It monitors host 1 and 15 luminous and sounding type of combined aural and visual alarm is controlled by sound-light alarm Monitor Sub-Station of Less 8, carry out early warning；It is logical in monitoring host 1
The gas that the gas pressure value for crossing the acquisition of gas pressure Monitor Sub-Station of Less 4 reaches 0.74MPa, gas concentration monitoring substation 5 acquires is dense
Angle value reaches 1%CH4Or the wind speed that ventilation monitoring substation 6 acquires is monitored lower than 0.25m/s or when being higher than 12m/s, change of the wind
Host 1 is controlled in 15 luminous and sounding type early warning of combined aural and visual alarm, alarm and cutting tunnel 16 by sound-light alarm Monitor Sub-Station of Less 8 to be owned
Switch unit is simultaneously latched, and is stopped work and is waited gas drawing station；Pass through the gas pressure that gas pressure Monitor Sub-Station of Less 4 acquires in monitoring host 1
Force value is lower than 1%CH lower than the gas concentration that 0.74MPa, gas concentration monitoring substation 5 acquire4Or ventilation monitoring substation 6 is adopted
When the wind speed of collection returns normal between 0.25m/s and 12m/s, wind direction, monitoring host 1 passes through construction power source Monitor Sub-Station of Less 7, into
Row automatic unlocking, and restore power source of constructing.
The present invention carries out gas pressure and gas density abnormity early warning, alarm and cutting electricity, water, pressure by monitoring host 1
The real-time monitoring monitoring of tunnel gas containing coal and ventilation condition has been implemented in full in the control of the construction power source such as wind.It solves and works as
Preceding 16 gas data monitoring of tunnel is manual；Gas explosion burns and when ventilation parameter exception, by real-time early warning, alarm and cutting electricity,
The problem of water, pressure wind etc. construct power source not in time, cause safety accident；By monitoring the control of host 1, accomplish relevant device
Locking and unlock, it is ensured that construction personnel, 16 environment of equipment, material and tunnel production safety.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (10)
1. tunnel gas containing coal and ventilation condition remote real time monitoring device, which is characterized in that including monitoring host (1), data
Port (2), gas monitor unit, wind speed and direction monitoring unit, switch unit and acousto-optic alert detecting unit；
The monitoring host (1) is through data port (2) and gas pressure Monitor Sub-Station of Less (4), gas concentration monitoring substation (5), logical
Wind Monitor Sub-Station of Less (6), construction power source Monitor Sub-Station of Less (7) and acousto-optic alert detecting substation (8) connection；
The gas monitor unit is passed by the four gas pressure sensors (9) and three gas densities for being located at same perpendicular
Sensor (10) composition；Arc section uniformly dissipates setting drilling (22), four gas above tunnel (16) tunnel wall of section containing coal (17)
Pressure sensor (9) is uniformly distributed in drilling (22) bottom hole, and three gas concentration sensor (10) uniform verticals are fixed on tunnel
(16) on the tunnel wall of section containing coal (17) vault, and be located at two sides gas concentration sensor (10) and tunnel wall (17) at the top of away from
From≤300mm, with a distance from tunnel wall (17) side wall >=200mm；(22) are drilled through tunnel wall (17), drilling (22) bottom is coal
Body (19)；
The wind speed wind direction sensor (11) that the wind speed and direction monitoring unit is located at same perpendicular by three forms, three wind
Fast wind transducer (11) is uniformly fixed on tunnel (16) tunnel wall of section containing coal (17) vault；
The switch unit is made of power switch (12), water source switch (13) and pressure wind switch (14)；First group of switch unit
In the tunnel wall (17) of tunnel (16) tunnel face, remaining is set on tunnel (16) internal tunnel wall (17)；Sound-light alarm
Device (15) is mounted at the arch springing of tunnel wall (17) side of tunnel (16) section containing coal；
The adjacent gas monitor unit interval is 5 meters, is divided into 20 meters between the adjacent wind speed and direction monitoring unit, wind speed and direction
Monitoring unit is divided into 100 between 2.5 meters, the adjacent combined aural and visual alarm (15) with away from nearest gas monitor unit
Meter, 1000 meters are divided between the adjacent switch unit, the gas pressure sensor (9) passes through data line (21) and gas
Pressure monitoring substation (4) connection, the gas concentration sensor (10) pass through data line (21) and gas concentration monitoring point
Stand (5) connection；The wind speed wind direction sensor (11) is connect by data line (21) with ventilation monitoring substation (6)；It is described
Power switch (12), water source switch (13) and pressure wind switch (14) pass through data line (21) and construction power source monitoring respectively
Substation (7) connection；The combined aural and visual alarm (15) is connect by data line (21) with sound-light alarm Monitor Sub-Station of Less (8).
2. tunnel gas containing coal according to claim 1 and ventilation condition remote real time monitoring device, which is characterized in that institute
Monitoring host (1) is stated equipped with the printer (3) for printing Gas explosion burns and ventilation parameter.
3. tunnel gas containing coal according to claim 1 or 2 and ventilation condition remote real time monitoring device, feature exist
In, the gas pressure sensor (9) is PY204 pressure gauge, and range is 0~10MPa, and precision is ± 0.2%, the response time≤
5ms。
4. tunnel gas containing coal according to claim 1 and ventilation condition remote real time monitoring device, which is characterized in that institute
Stating gas concentration sensor (10) is national standard GJ4/40 coal mine high-low concentration methane sensor, and range is low dense: (0.00~
10.00) %CH4, highly concentrated: (10.0~100.0) %CH4。
5. tunnel gas containing coal according to claim 1 and ventilation condition remote real time monitoring device, which is characterized in that every
A wind speed wind direction sensor (11) is made of velocity sensor, wind transducer and sensor stand, velocity sensor and wind direction
Sensor is fixed on tunnel wall (17) by sensor stand.
6. tunnel gas containing coal according to claim 1 and ventilation condition remote real time monitoring device, which is characterized in that institute
Stating data port (2) is KJ328-J mining information coffret.
7. tunnel gas containing coal according to claim 1 and ventilation condition remote real time monitoring device, which is characterized in that institute
State gas pressure Monitor Sub-Station of Less (4), gas concentration monitoring substation (5), ventilation monitoring substation (6), construction power source Monitor Sub-Station of Less
(7) and acousto-optic alert detecting substation (8) is KJ328-F mining monitoring substation.
8. tunnel gas containing coal according to claim 1 and ventilation condition remote real time monitoring device, which is characterized in that institute
Stating combined aural and visual alarm (15) is TLHD2L dual horn sound-light alarm.
9. tunnel gas containing coal according to claim 1 and ventilation condition remote real time monitoring device, which is characterized in that institute
Stating power switch (12) is KBZ-1000/1140/660 flame-proof type vacuum feed switch；The water source switch (13) is ZDKS-2
Automatic water proof switch；The pressure wind switch (14) is that ZDKF-1 is switched from dynamic pressure air control system.
10. tunnel gas containing coal according to claim 5 and ventilation condition remote real time monitoring device, which is characterized in that
The velocity sensor range is 0~20m/s, and error range is ± 0.5m/s, has the function of to automatically adjust zero point and adjust automatically
Save sensitivity function；The wind transducer range is 0~360 °, and precision is ± 3 °；The sensor stand is by sleeve and spiral shell
Nail composition.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811114635.9A CN109026158A (en) | 2018-09-25 | 2018-09-25 | Tunnel gas containing coal and ventilation condition remote real time monitoring device |
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|---|---|---|---|
| CN201811114635.9A CN109026158A (en) | 2018-09-25 | 2018-09-25 | Tunnel gas containing coal and ventilation condition remote real time monitoring device |
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| CN109026158A true CN109026158A (en) | 2018-12-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267915A (en) * | 2020-10-23 | 2021-01-26 | 重庆市交通工程监理咨询有限责任公司 | Gas early warning system for tunnel construction |
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