CN205532720U - Digital safety control system of blow tunnel construction - Google Patents
Digital safety control system of blow tunnel construction Download PDFInfo
- Publication number
- CN205532720U CN205532720U CN201620188667.3U CN201620188667U CN205532720U CN 205532720 U CN205532720 U CN 205532720U CN 201620188667 U CN201620188667 U CN 201620188667U CN 205532720 U CN205532720 U CN 205532720U
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- gas
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- tunnel
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- 238000010276 construction Methods 0.000 title claims abstract description 24
- 238000012544 monitoring process Methods 0.000 claims abstract description 85
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000007689 inspection Methods 0.000 claims abstract description 13
- 230000009429 distress Effects 0.000 claims abstract description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 10
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000009825 accumulation Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 238000013508 migration Methods 0.000 abstract 2
- 230000005012 migration Effects 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 229940052961 longrange Drugs 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 66
- 239000003245 coal Substances 0.000 description 11
- 238000009412 basement excavation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 208000001408 Carbon monoxide poisoning Diseases 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- Emergency Alarm Devices (AREA)
Abstract
The utility model discloses a digital safety control system of blow tunnel construction, including gas monitored control system, automatic broadcasting system, video monitored control system and gas migration inspection system, gas monitored control system includes gas monitoring subsystem and personnel's locator system, and gas monitoring subsystem is connected with sensors such as methane through monitoring substation, monitoring substation is equipped with the feed switch control circuit's that is used for in the tunnel long -range electrical shutoff control and feed sensing monitoring's outage appearance, personnel's locator personnel of system location and dynamic management, automatic broadcasting system's signal input part and gas monitoring subsystem's gas transfinite the distress signal output of alarm signal output and personnel's locator system to be connected, video monitor system is used for carrying out real time monitoring to the job site, gas migration inspection system is used for the monitoring of flowing to gas density. The beneficial effects of the utility model are that, it is accurate reliable that the monitoring that the function is complete, gas transfinites is reported to the police, and the specially adapted contains the tunnelling construction of blow tunnel.
Description
Technical Field
The utility model relates to a tunnel construction safety control system, especially a digital safety control system of outstanding tunnel construction of gas.
Background
With the development of the traffic industry of China, the situation that the tunnel is built by penetrating through the gas-containing stratum is more and more, and the number of high gas tunnels is also increased continuously. The main component of the gas, namely methane, is the main cause of coal mine accidents, and 70-80% of domestic coal mine accidents are caused by gas explosion. The gas accidents mainly comprise coal and gas outburst, gas explosion, suffocation of gas and the like, and once the accidents happen, the accidents often have great influence, so that destructive loss is brought to the local part of a mine, normal operation of coal production is influenced, and inestimable economic loss and psychological damage are brought to enterprise staff, miners and family members. The most important step for avoiding gas accumulation is to find out the place where the gas is over-limited through gas monitoring, so that various gas monitoring systems must be relied on. The application of the coal mine gas monitoring and monitoring system plays an important role in improving the safety condition of coal mines in China, reducing the loss of personnel and property, and improving the production efficiency and the modernization level of the coal mines. Meanwhile, under the guidance of a 12-word guideline of 'first pumping and then mining, monitoring and monitoring, fixed production by wind' and related terms of coal mine safety regulations, in 2007, 1 month, the national safety production supervision and administration bureau requires that all coal mines (including high gas mines and low gas mines) must be provided with a gas monitoring system. Various gas monitoring and controlling systems currently used in coal mines in China are as many as ten, have the functions of gas monitoring and alarming, personnel positioning and the like, and basically meet the requirements of underground operation of coal mines. However, in tunnel construction, a management system with more reliable safety is required due to the particularity of the operation, particularly the urgency required for the construction period. To this end, improvements and improvements to existing security systems are needed.
Disclosure of Invention
The utility model aims at providing a digital safety control system of outstanding tunnel construction of gas to prior art not enough to ensure operation safety.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a digital safety management system for construction of a gas outburst tunnel comprises a gas monitoring system, an automatic broadcasting system, a video monitoring system and a gas flowing inspection system;
the gas monitoring system comprises a gas monitoring subsystem and a personnel positioning subsystem, wherein the gas monitoring subsystem is connected with a methane sensor, an air speed sensor, a carbon monoxide sensor and a temperature sensor through a monitoring substation; the monitoring substation is provided with a power cut-off instrument which is used for remote power cut-off control and feed sensing monitoring of a feed switch control loop in the tunnel; the personnel positioning subsystem is used for positioning personnel in the tunnel and dynamically monitoring and managing;
the signal input end of the automatic broadcasting system is connected with the gas overrun alarm signal output end of the gas monitoring subsystem and the distress signal output end of the personnel positioning subsystem;
the video monitoring system is used for monitoring the personnel entering and exiting condition, the mechanical vehicle condition and the construction production condition in real time;
The gas flowing inspection system is used for carrying out flowing type monitoring on the gas concentration of the working face.
Adopt above-mentioned technical scheme the utility model discloses, utilize current gas monitoring system, integrate automatic broadcasting system, video monitoring system and gas flow inspection system, it collects gas automatic monitoring warning, gas flow monitoring, personnel location management, multiple functions in an organic whole such as personnel's sparse automatic broadcasting, on-the-spot video monitoring, especially have two sets of subsystems of gas automated inspection and flow monitoring, the two can complement each other. The mobile monitoring is usually carried out by professional tile inspectors, security personnel, team leaders and the like, so that the missing detection and the missing report risks caused by the faults of sensors, lines, substations and the like of automatic monitoring or the faults of manual monitoring instruments can be effectively avoided, and the operation reliability of the management system is improved.
Preferably, the methane sensor is vertically suspended at a stable position of wind flow above the tunnel, and is not larger than 300mm from a top plate and not smaller than 200mm from the side wall of the tunnel. The methane concentration in the tunnel is accurately monitored, and the reliability of monitoring the system gas is further improved.
Preferably, the set points of the methane sensor comprise an arch part in the range of 5m of a tunnel face in an air supply flow of an excavation working face, an arch part in the range of 10-15 m of a tunnel opening side at the tunnel face in a return air flow of the excavation working face, air flows in 20m near various operation trolleys and machinery, a distance hole in the range of 30-50 m of a total return air flow of a tunnel, air flows in 10m in front of and behind a local fan and an electric switch, an air inlet side of an electromechanical chamber in the return air flow, 10-15 m of the upper side of electric equipment in the return air roadway and gas accumulation parts in a tunnel chamber and a transverse channel. Further ensure the accuracy of the monitoring result of the gas at the relevant key parts in the tunnel, and is particularly suitable for tunnel driving construction.
Preferably, the carbon monoxide sensor is arranged on the center line of the arch, and the distance from the carbon monoxide sensor to the top plate is not more than 300 mm; the temperature sensor is arranged at the middle upper part of the roadway; the wind speed sensors are arranged at the front and the rear 10m of the roadway, and the middle upper part of the roadway is free of branch wind current, turning, obstacle and section change. The accuracy of the carbon monoxide monitoring result of the relevant key parts in the tunnel is ensured, carbon monoxide poisoning of constructors is avoided, the safety of the constructors is ensured, and the method is particularly suitable for tunnel driving construction.
Preferably, the gas flow patrol system is patrolled by patrol personnel through a portable methane detection alarm instrument and/or a portable optical interference optical methane detector. The patrol is completed by professional tile inspectors, security personnel and team leaders, and a portable methane detection alarm instrument or a portable optical interference methane detector or both are equipped according to the functional requirements so as to adapt to the patrol duty requirements of different personnel, for example, a gas inspector must use the optical interference methane detector to detect the gas concentration at the positions of a tunnel face, a template trolley, a cavity, a transverse passage, a section change and the like; the workers on duty, the workmans on duty, the security inspector and the like use the portable methane detection alarm to frequently check the gas content in the hole. Obviously, the patrol personnel can also detect parameters such as wind speed, carbon monoxide and hydrogen sulfide of the patrol points according to the safety management requirements, alarm in time when the detection result exceeds the standard, and report and transmit by matching with an automatic broadcasting system, so that the personnel in dangerous areas can be evacuated and evacuated in time, and the construction safety is ensured.
Further preferably, the patrol points of the gas flow patrol system on any patrol section of the tunnel comprise 5 patrol points at positions which are 200mm away from the periphery of the tunnel respectively, such as an arch crown, arch feet at two sides and wall feet at two sides. The integrity of the manual inspection part ensures the accuracy of the inspection result.
The utility model has the advantages of compared with the prior art, the function is complete, the gas transfinites monitoring alarm is accurate reliable, and specially adapted contains the outstanding tunnel tunnelling construction of gas.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic position diagram of the arrangement of partial sensors in the roadway of the gas monitoring system of the present invention.
Fig. 3 is the monitoring point position schematic diagram of the middle manual inspection system on the tunnel section.
Detailed Description
The invention will be further described with reference to the drawings, without thereby restricting the invention to the described embodiments.
A digital safety management system for gas outburst tunnel construction comprises a gas monitoring system 10, an automatic broadcasting system 20, a video monitoring system 30 and a gas flowing inspection system 40. Wherein,
the gas monitoring system 10 comprises a gas monitoring subsystem 11 and a personnel positioning subsystem 12, wherein the gas monitoring subsystem 11 is connected with a methane sensor 2, an air speed sensor 3, a carbon monoxide sensor 4 and a temperature sensor 5 through a monitoring substation 1; the monitoring substation 1 is provided with a power cut-off instrument 6, and the power cut-off instrument 6 is used for remote power cut-off control and feed sensing monitoring of a feed switch control loop in a tunnel; if the existing gas monitoring system 10 of a certain model is utilized, a monitoring signal cable is laid in a tunnel, a methane sensor 2, an air velocity sensor 3 and the like are arranged on a tunneling working face for timely monitoring, a 1-5 mA current type equipment start-stop sensor is adopted for monitoring by a ventilator, and the monitoring is processed according to an analog signal; when the gas concentration is more than 0.5%, the methane sensor 2 gives out sound-light alarm; when the gas concentration is greater than 1.0 percent or the ventilator is powered off or the wind speed is less than 0.25m/s, the monitoring substation 1 sends out a control signal to realize power failure. When the gas concentration is less than 0.3% and the ventilator recovers air supply, the control signal is stopped, the lock is released, and the power supply can be recovered; when the gas concentration of a tunneling working face exceeds the limit or a ventilator stops running and the wind speed is lower than a set value, a sensor transmits a signal to a monitoring substation 1, the monitoring substation 1 transmits data to a ground monitoring central station through a data transmission cable and a transmission interface, the ground monitoring central station converts an analysis result into a methane power locking control signal according to the upper/lower limit value of the gas concentration and other numerical values set by software, and the signal is transmitted to the monitoring substation 1 to execute a local breaker to disconnect and control controlled power supply equipment distributed in the tunneling working face and a return air tunnel. The personnel positioning subsystem 12 is used for positioning personnel in the tunnel and carrying out dynamic monitoring management; the set points of the methane sensor 2 comprise an arch part in the range of 5m of a face surface in an air supply flow of an excavation working surface, an arch part in the range of 10-15 m of the wind cylinder opening side at the face surface in a return air flow of the excavation working surface, air flows in the vicinity of various operation trolleys and machinery and 20m of the vicinity of the machinery, a distance cave opening in the range of 30-50 m of a total return air flow of a gallery, air flows in the range of 10m in front of and behind a local fan and an electrical switch, an air inlet side of an electromechanical chamber in the return air flow, the upper side of electrical equipment in a return air roadway and a gas accumulation part in a tunnel chamber and a transverse channel; the methane sensor 2 is vertically suspended at a position above the tunnel where the air flow is stable, and is not more than 300mm away from a top plate and not less than 200mm away from the side wall of the tunnel; the carbon monoxide sensor 4 is arranged on the center line of the vault, and the distance from the carbon monoxide sensor to the top plate is not more than 300 mm; the temperature sensor 5 is arranged at the middle upper part of the roadway; the wind speed sensors 3 are arranged in the front 10m and the rear 10m of the roadway, and are arranged at the middle upper part of the roadway without branch wind current, turning, obstacles and section changes.
The signal input end of the automatic broadcasting system 20 is connected with the gas overrun alarm signal output end of the gas monitoring subsystem 11 and the distress signal output end of the personnel positioning subsystem 12.
The video monitoring system 30 is used for monitoring the personnel entering and exiting condition, the mechanical vehicle condition and the construction production condition in real time through the monitoring camera 9 and the monitoring display terminal.
The gas flowing inspection system 40 is used for monitoring the gas concentration of the working surface in time; the gas flowing patrol system comprises a portable methane detection alarm instrument 7 and a portable optical interference optical methane detector 8, as shown in figure 3, patrol points of the gas flowing patrol system on any patrol section of the tunnel comprise 5 patrol points at 200mm positions of an arch crown, arch feet at two sides and wall feet at two sides from the periphery of the tunnel, and the flowing patrol positions also monitor wind speed, hydrogen sulfide, dust and the like.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art will also recognize that various changes and modifications can be made within the scope of the appended claims, and that such changes and modifications are to be understood as being within the scope and intent of the present invention.
Claims (6)
1. A digital safety management system for gas outburst tunnel construction comprises a gas monitoring system (10), and is characterized by also comprising an automatic broadcasting system (20), a video monitoring system (30) and a gas flowing inspection system (40);
the gas monitoring system (10) comprises a gas monitoring subsystem (11) and a personnel positioning subsystem (12), wherein the gas monitoring subsystem (11) is connected with a methane sensor (2), a wind speed sensor (3), a carbon monoxide sensor (4) and a temperature sensor (5) through a monitoring substation (1); the monitoring substation (1) is provided with a power-off instrument (6), and the power-off instrument (6) is used for remote power-off control and feed sensing monitoring of a feed switch control loop in the tunnel; the personnel positioning subsystem (12) is used for positioning personnel in the tunnel and dynamically monitoring and managing;
the signal input end of the automatic broadcasting system (20) is connected with the gas overrun alarm signal output end of the gas monitoring subsystem (11) and the distress signal output end of the personnel positioning subsystem (12);
the video monitoring system (30) is used for monitoring the personnel entering and exiting condition, the mechanical vehicle condition and the construction production condition in real time;
the gas flowing inspection system (40) is used for carrying out flowing monitoring on the gas concentration of the working face.
2. The digital safety management system for gas outburst tunnel construction according to claim 1, wherein the methane sensor (2) is vertically suspended above the tunnel at a position where wind flow is stable, and is not more than 300mm from a top plate and not less than 200mm from a side wall of a roadway.
3. The digital safety management system for gas outburst tunnel construction according to claim 1, wherein the set points of the methane sensor (2) comprise an arch part within 5m of a tunnel face in an air supply flow of an excavated working face, an arch part within 10-15 m of a tunnel mouth side at the tunnel face in a return air flow of the excavated working face, air flows within 20m near various operation trolleys and machinery, a distance opening within 30-50 m of a distance opening in a total return air flow of a gallery, air flows within 10m before and after a local fan and an electrical switch, an air inlet side of an electromechanical chamber in the return air flow, an upper side of electrical equipment within 10-15 m of a return tunnel, and gas accumulation parts in a tunnel chamber and a transverse channel.
4. The digital safety management system for gas outburst tunnel construction according to any one of claims 1 to 3, wherein the carbon monoxide sensor (4) is installed on the center line of the vault and is not more than 300mm away from the top plate; the temperature sensor (5) is arranged at the middle upper part of the roadway; the wind speed sensors (3) are arranged at the front and the rear of the roadway by 10m, and are arranged at the middle upper part of the roadway without branch wind current, turning, obstacle and section change.
5. The digital safety management system for gas outburst tunnel construction according to any one of claims 1 to 3, wherein the gas flow patrol system is patrolled by patrollers through a portable methane detection alarm (7) and/or a portable optical interference optical methane detector (8).
6. The digital safety management system for construction of the gas outburst tunnel according to claim 5, wherein the patrol points of the manual gas patrol system on any patrol section of the tunnel comprise 5 patrol points at positions of 200mm away from the periphery of the tunnel of each of the vault, the two side arch springing and the two side wall springing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620188667.3U CN205532720U (en) | 2016-03-11 | 2016-03-11 | Digital safety control system of blow tunnel construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620188667.3U CN205532720U (en) | 2016-03-11 | 2016-03-11 | Digital safety control system of blow tunnel construction |
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| CN205532720U true CN205532720U (en) | 2016-08-31 |
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| CN201620188667.3U Expired - Fee Related CN205532720U (en) | 2016-03-11 | 2016-03-11 | Digital safety control system of blow tunnel construction |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643939A (en) * | 2018-08-15 | 2018-10-12 | 中铁工程装备集团有限公司 | A kind of formwork jumbo construction monitoring system and monitoring method |
| CN110130989A (en) * | 2019-05-21 | 2019-08-16 | 华中科技大学 | Firedamp remote monitoring and alarm system during a kind of constructing tunnel |
| CN110349369A (en) * | 2019-07-18 | 2019-10-18 | 精英数智科技股份有限公司 | A kind of monitoring method, device, system and the storage medium in the blind lane of mine |
| CN112904844A (en) * | 2021-01-14 | 2021-06-04 | 广东核电合营有限公司 | Intelligent inspection method and system for nuclear power station |
| CN112967413A (en) * | 2021-02-01 | 2021-06-15 | 重庆梅安森科技股份有限公司 | Coal mine gas dynamic patrol system and method |
-
2016
- 2016-03-11 CN CN201620188667.3U patent/CN205532720U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643939A (en) * | 2018-08-15 | 2018-10-12 | 中铁工程装备集团有限公司 | A kind of formwork jumbo construction monitoring system and monitoring method |
| CN110130989A (en) * | 2019-05-21 | 2019-08-16 | 华中科技大学 | Firedamp remote monitoring and alarm system during a kind of constructing tunnel |
| CN110349369A (en) * | 2019-07-18 | 2019-10-18 | 精英数智科技股份有限公司 | A kind of monitoring method, device, system and the storage medium in the blind lane of mine |
| CN112904844A (en) * | 2021-01-14 | 2021-06-04 | 广东核电合营有限公司 | Intelligent inspection method and system for nuclear power station |
| CN112967413A (en) * | 2021-02-01 | 2021-06-15 | 重庆梅安森科技股份有限公司 | Coal mine gas dynamic patrol system and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 |
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| CF01 | Termination of patent right due to non-payment of annual fee |