CN103967633B - A kind of diesel locomotive autocontrol method for highway gas tunnel - Google Patents
A kind of diesel locomotive autocontrol method for highway gas tunnel Download PDFInfo
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- CN103967633B CN103967633B CN201410221083.7A CN201410221083A CN103967633B CN 103967633 B CN103967633 B CN 103967633B CN 201410221083 A CN201410221083 A CN 201410221083A CN 103967633 B CN103967633 B CN 103967633B
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Abstract
The invention discloses a kind of diesel locomotive autocontrol method for highway gas tunnel, comprise the following steps: a, the first automatic control system that following structure is set on locomotive: this system comprises low-concentration methane sensor, main control system; B, when locomotive uses, low-concentration methane sensor is adopted to detect the volume percent methane gathered in locomotive position air, and by detected parameters signal transmission to main control system; C, main control system receive volume percent methane detected parameters signal, and after multilevel iudge, main control system sends acoustooptic alarm; Make the action of diesel locomotive blanket, diesel locomotive is stopped working; D, when volume percent methane be more than or equal to telegram in reply setting limit value time, control system automatic blocking diesel locomotive.Controlling method of the present invention, can control diesel locomotive lower work in a safe condition in gas tunnel, once gas exceeding limit, control system implements warning, power-off, flame-out and locking at once.
Description
Technical field
Patent of the present invention relates to a kind of diesel locomotive autocontrol method for highway gas tunnel.
Background technique
China is built and building gas tunnel more than 200 seat at present, and annual also at the speed increase increased newly in the amount of building with 30 ~ 50.At present, tunnel mainly adopts artificial and automatic detecting environment gas.Be equipped with full-time fireboss during construction, utilize optics watt inspection instrument to the CH in tunnel
4detect, methane monitoring system monitoring of environmental gas is installed simultaneously.
For the control of the large-sized diesel locomotive in tunnel, notification number CN201991566 discloses a kind of vehicle-mounted gas monitoring system, it is characterized in that comprising the control substation be connected with Computer Maintenance system by data-interface, and by datawire respectively with control the substation first sensor, the second sensor, power-down control device, electronic flameout apparatus, the alarm that are connected, controlling substation is arranged in engineering vehicle cab, and first sensor and the second sensor are arranged on operator cabin top portion ventilation place and car bottom ventilation place respectively.But this technological scheme still has complex structure, control poor sensitivity, the many and dispersion of parts of use, electronic flameout apparatus (adopt oil-break and power-off stop working principle) poor reliability and defect, be unfavorable for supervision and the construction safety of the gas in Highway Tunnel Construction.
Summary of the invention
For above-mentioned the deficiencies in the prior art, technical problem to be solved by this invention how to provide a kind of circuit structure simple, and it is convenient to implement, and controls reliably for the diesel locomotive autocontrol method of highway gas tunnel, to obtain the supervision effect of better gas, guarantee construction safety.
In order to solve the problems of the technologies described above, in the present invention, have employed following technological scheme:
For a diesel locomotive autocontrol method for highway gas tunnel, it is characterized in that, comprise the following steps:
1, the automatic control system of following structure is first set on locomotive: this system comprises low-concentration methane sensor and main control system:
Low-concentration methane sensor, described low-concentration methane sensor is arranged on locomotive outer surface and for gathering locomotive position volume percent methane signal;
Main control system, described main control system is arranged in diesel locomotive, main control system comprises the unit such as Signal reception, acoustooptic alarm and control switch, main control system is connected with described low-concentration methane sensor and for receiving low-concentration methane sensor signal, be connected with diesel locomotive blanket simultaneously, stop working to control diesel locomotive;
2, when locomotive uses, low-concentration methane sensor is adopted to detect the volume percent methane gathered in the air of locomotive position, and by detected parameters signal transmission to main control system;
3, volume percent methane detected parameters signal and predefined value contrast after receiving volume percent methane detected parameters signal by main control system, and when volume percent methane is more than or equal to alarm settings limit value, main control system sends acoustooptic alarm; When volume percent methane is more than or equal to power-off flame-out setting limit value, main control system electronic switch closes open in usual, makes the action of diesel locomotive blanket simultaneously, and diesel locomotive is stopped working;
4, when volume percent methane is more than or equal to telegram in reply setting limit value, control system automatic blocking diesel locomotive, until volume percent methane is less than telegram in reply setting limit value just can restart diesel locomotive work.
Diesel locomotive autocontrol method for highway gas tunnel of the present invention, the automatic control system of said structure is first set on locomotive, volume percent methane detected parameters signal and predefined value contrast after receiving volume percent methane detected parameters signal by the main control system in this automatic control system, when volume percent methane is more than or equal to alarm settings limit value, main control system sends acoustooptic alarm, tunnel construction site stops operation immediately, notify that related personnel processes in time, after eliminating safe hidden trouble, row operation again, guarantees construction safety; When volume percent methane is more than or equal to power-off flame-out setting limit value, main control system electronic switch closes open in usual, make the action of diesel locomotive blanket simultaneously, make diesel locomotive flame-out and locking, to prevent in construction operation workmen to the false tripping of diesel locomotive, and therefore may cause explosive accident.When volume percent methane is more than or equal to telegram in reply setting limit value, control system automatic blocking diesel locomotive, until volume percent methane is less than telegram in reply setting limit value just can restart diesel locomotive work, can removes and report to the police and restart diesel locomotive work and construct.
The present invention can be real-time monitoring highway gas tunnel volume percent methane and effectively warn workmen and the engine control circuit of diesel locomotive is controlled.In addition, further, when electronic switch open in usual, low-concentration methane sensor are in abnormal operating state (conjunction cable or sensor degradation) and main control system cisco unity malfunction, main control system can artificially not started by locking diesel locomotive, guarantee that the diesel locomotive in gas tunnel work progress is in state safe against all possibilities, ensure gas tunnel construction safety.Wherein, adopt circuit structure simple, it is convenient to implement, and controls reliable.
In sum, compared with the existing technology, it is high that the present invention has automaticity, detection range is wide, is active in one's movements reliable, the advantage that Security is high, significantly reduce the security risk of diesel locomotive operation in tunnel, achieve the supervision effect of better gas, improve construction safety guarantee.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
During concrete enforcement, a kind of diesel locomotive autocontrol method for highway gas tunnel, is characterized in that, comprise the following steps:
1, the automatic control system of following structure is first set on diesel locomotive: this system comprises low-concentration methane sensor and main control system:
Low-concentration methane sensor: described low-concentration methane sensor is arranged on locomotive outer surface and for gathering locomotive position volume percent methane signal;
Main control system: described main control system is arranged in diesel locomotive, main control system comprises the unit such as Signal reception, acoustooptic alarm and control switch, main control system is connected with described low-concentration methane sensor and for receiving low-concentration methane sensor signal, be connected with diesel locomotive blanket simultaneously, stop working to control diesel locomotive;
2, when diesel locomotive uses, low-concentration methane sensor is adopted to detect the volume percent methane gathered in the air of diesel locomotive position, and by detected parameters signal transmission to main control system;
3, volume percent methane detected parameters signal and predefined value contrast after receiving volume percent methane detected parameters signal by main control system, and when volume percent methane is more than or equal to alarm settings limit value, main control system sends acoustooptic alarm; When volume percent methane is more than or equal to power-off flame-out setting limit value, main control system electronic switch closes open in usual, makes the action of diesel locomotive blanket simultaneously, and diesel locomotive is stopped working;
4, when volume percent methane is more than or equal to telegram in reply setting limit value, control system automatic blocking diesel locomotive, until volume percent methane is less than telegram in reply setting limit value just can restart diesel locomotive work.
Specifically, this method comprises the following steps:
1, at diesel locomotive peak, low-concentration methane sensor is installed and gathers diesel locomotive position volume percent methane signal, and in real time testing signal is passed to main control system;
2, in diesel locomotive, install main control system, and be connected with main control system signal input by low-concentration methane sensor signaling line, the zip that simultaneously guide line and diesel locomotive stopped working is in parallel;
3, connection control main frame is to spraying cooling solenoid electric valve;
4, volume percent methane detected parameters signal and predefined value contrast after receiving volume percent methane detected parameters signal by main control system, and when volume percent methane is more than or equal to alarm settings limit value, main control system sends acoustooptic alarm; When volume percent methane is more than or equal to power-off flame-out setting limit value, main control system electronic switch closes open in usual, makes the action of diesel locomotive blanket simultaneously, makes diesel locomotive flame-out and locking.
During concrete enforcement, described low-concentration methane sensor and main control system adopt the blasting resistance structure product with safety of coal mines mark.
During concrete enforcement, the present invention can further include gas componant and detects, and described gas componant detecting sensor is arranged on diesel locomotive outer surface and O for gathering diesel locomotive position
2, CO and H
2the toxic and harmful signals such as S; Described main control system is connected with described gas componant detecting sensor and signal for receiving toxic and harmful composition detection sensor.So, toxic and harmful composition detection sensor carries out component analysis to the toxic and harmful in tunnel, when in tunnel, carrier of oxygen volume concentrations is less than or equal to CO and H in setting value or air
2when S is more than or equal to setting value, main control system sends acoustooptic alarm signal immediately, avoid workmen's anoxic or because of suck CO and H
2s and produce the generation of intoxication conditions.
The diesel locomotive autocontrol method for highway gas tunnel that this embodiment relates to, the volume percent methane of monitoring highway gas tunnel that can be real-time, and effectively warn workmen and the engine control circuit of diesel locomotive is controlled.In addition, when main control system and low-concentration methane sensor are in abnormal operating state (conjunction cable or sensor degradation), system can implement lock-in control to diesel locomotive, until could unlock after in system, all devices is in normal state, guarantee that the diesel locomotive in gas tunnel work progress is in state safe against all possibilities, ensure gas tunnel construction safety.
Claims (1)
1., for a diesel locomotive autocontrol method for highway gas tunnel, it is characterized in that, comprise the following steps:
A, the first automatic control system that following structure is set on diesel locomotive: this system comprises low-concentration methane sensor and main control system:
Low-concentration methane sensor: described low-concentration methane sensor is arranged on locomotive outer surface and for gathering locomotive position volume percent methane signal;
Main control system: described main control system is arranged in diesel locomotive, main control system comprises the unit such as Signal reception, acoustooptic alarm and control switch, main control system is connected with described low-concentration methane sensor and for receiving low-concentration methane sensor signal, be connected with diesel locomotive blanket simultaneously, stop working to control diesel locomotive;
B, when diesel locomotive uses, low-concentration methane sensor is adopted to detect the volume percent methane gathered in diesel locomotive position air, and by detected parameters signal transmission to main control system;
Volume percent methane detected parameters signal and predefined value contrast after receiving volume percent methane detected parameters signal by c, main control system, and when volume percent methane is more than or equal to alarm settings limit value, main control system sends acoustooptic alarm; When volume percent methane is more than or equal to power-off flame-out setting limit value, main control system electronic switch closes open in usual, makes the action of diesel locomotive blanket simultaneously, and diesel locomotive is stopped working; When volume percent methane is more than or equal to telegram in reply setting limit value, control system automatic blocking diesel locomotive, until volume percent methane is less than telegram in reply setting limit value just can restart diesel locomotive work;
D, when main control system and low-concentration methane sensor conjunction cable damage or sensor degradation time, this automatic control system implements lock-in control to diesel locomotive, until all devices unlocks after being in normal state in this automatic system.
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| CN201410221083.7A CN103967633B (en) | 2014-05-23 | 2014-05-23 | A kind of diesel locomotive autocontrol method for highway gas tunnel |
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| CN105971731B (en) * | 2016-07-29 | 2018-08-14 | 中煤科工集团西安研究院有限公司 | A kind of coal bed gas drilling machine engine health protection system and method |
| US11268472B2 (en) | 2017-02-24 | 2022-03-08 | Carrier Corporation | Methane safety systems for transport refrigeration units |
| CN114407020B (en) * | 2022-02-24 | 2023-07-25 | 南京北路智控科技股份有限公司 | Mining robot methane locking control device and control method |
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| JP2007323118A (en) * | 2006-05-30 | 2007-12-13 | Yazaki Corp | Gas alarm |
| CN201096024Y (en) * | 2007-08-27 | 2008-08-06 | 常州澳丰机电制造有限公司 | flame proof and intrinsically safe protection device for diesel locomotive |
| CN201433820Y (en) * | 2009-06-08 | 2010-03-31 | 昆山晋桦豹胶轮车制造有限公司 | Electrical automatic protection device of explosion-proof diesel locomotive |
| CN101825014A (en) * | 2010-04-22 | 2010-09-08 | 吉林长城机械制造有限公司 | Automatic protection device for coal mine explosion-proof diesel locomotive |
| CN201991566U (en) * | 2011-03-15 | 2011-09-28 | 中铁十二局集团第一工程有限公司 | Vehicle-mounted gas monitoring system |
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Inventor after: Yu Shigang Inventor after: Liu Jie Inventor after: Yuan Kun Inventor after: Hong Zebing Inventor after: Yu Qing Inventor after: Li Mengquan Inventor after: Wang Zhiguo Inventor after: Liu Rong Inventor before: Yu Shigang Inventor before: Liu Jie Inventor before: Yuan Kun Inventor before: Hong Zebin Inventor before: Yu Qing Inventor before: Li Mengquan Inventor before: Wang Zhiguo Inventor before: Liu Rong |
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