CN203362230U - Tunnel gas monitoring system - Google Patents
Tunnel gas monitoring system Download PDFInfo
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- CN203362230U CN203362230U CN 201320421511 CN201320421511U CN203362230U CN 203362230 U CN203362230 U CN 203362230U CN 201320421511 CN201320421511 CN 201320421511 CN 201320421511 U CN201320421511 U CN 201320421511U CN 203362230 U CN203362230 U CN 203362230U
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Abstract
The utility model discloses a tunnel gas monitoring system which mainly comprises a methane sensor, a carbonic oxide sensor, a wind speed sensor, a monitoring substation, a sound and light alarm and a monitoring center computer. The methane sensor, the carbonic oxide sensor and the wind speed sensor are respectively connected with the monitoring substation, and the monitoring substation is respectively connected with the sound and light alarm and the monitoring center computer. Sensor data in the monitoring substation are read by the monitoring center computer in real time and stored in the computer, the computer judges whether the concentration of gas in a tunnel exceeds a standard or not by analyzing the data, and a safety instruction and an alarm are timely given.
Description
Technical field
The utility model relates to a kind of monitoring system, specifically refers to a kind of tunnel gas monitoring system.
Background technology
Gas is to take methane to be the general designation of main various pernicious gases, and its composition is extremely complicated, mainly contains heavy hydrocarbon that methane, carbon monoxide, carbon dioxide, nitrogen and quantity do not wait and the rare gas of trace etc.It is a kind of colourless, tasteless, odorless, nontoxic gas, and the standard state lower density is 0.716kg/m3, with respect to the proportion of air, is 0.554, because gas is little than atmospheric density, therefore often accumulate in the top in tunnel.The chemical property torpescence of gas, be slightly soluble in water, and gas itself is nontoxic, but can not breathe for the people.Gas itself is can spontaneous combustion and blast, but when and after air (oxygen) mixes with certain proportion and reaches certain concentration, run into burning things which may cause a fire disaster, just can burn and blast.
The Gas Disaster accident mainly contains gas combustion, gas explosion, Gas Outburst, and gas asphyxiation etc., wherein, with the destructiveness maximum of gas explosion, gas burst accident, occurrence frequency is the highest.The Gas Disaster accident is that several accidents recur sometimes, and therefore, the gas density in the Real-Time Monitoring tunnel is the effective means of prevention Gas Disaster accident.
The utility model content
The purpose of this utility model is to provide a kind of tunnel gas monitoring system, read in real time each sensing data in outstation by Surveillance center's computer, and store data in computer, by data analysis, judge whether the gas density in tunnel exceeds standard, and give in time safety instruction and warning.
The utility model is achieved through the following technical solutions:
A kind of tunnel gas monitoring system, mainly by methane transducer, carbon monoxide transducer, air velocity transducer, outstation, audible-visual annunciator and Surveillance center's computer, formed, methane transducer, carbon monoxide transducer and air velocity transducer are connected with outstation respectively, and outstation is connected with the Surveillance center computer with audible-visual annunciator respectively.In tunnel, face and two lining chassis and other specific positions are installed respectively outstation, outstation connects respectively 2 methane transducers, 1 carbon monoxide transducer, the fast sensor of 1 typhoon and 1 temperature pick up, near 1 Surveillance center's computer of security monitoring tunnel portal indoor location on duty, 1 data transmission interface and 1 cover audible-visual annunciator, in hole, outstation is connected with the Surveillance center computer by cable.Surveillance center's computer reads each sensing data in outstation in real time, and stores data in computer, by data analysis, judges whether the gas density in tunnel exceeds standard, and gives in time safety instruction and warning.
Described methane transducer is selected low-concentration methane sensor, and model is KG9701A.Methane transducer is mainly the ambient parameter that gathers tunnel, and the KG9701A methane transducer can convert down-hole biogas to the standard electric signal continuously and automatically and flow to relevant device, and has and show on the spot gas concentration, and the functions such as sound and light alarm transfinite.
Described carbon monoxide transducer adopts the MQ-7 gas sensor.The gas sensitive that the MQ-7 gas sensor is used is the lower tin ash of electrical conductivity in clean air.Adopt high low temperature cycle detection mode low temperature to detect carbon monoxide, the electrical conductivity of sensor increases with the CO in Air gas concentration, the spuious gas that high temperature adsorbs while cleaning low temperature.Use simple circuit by the variation of electrical conductivity, to be converted to the output signal corresponding with this gas concentration.The MQ-7 gas sensor is highly sensitive to carbon monoxide, and this sensor can detect the multiple gas containing carbon monoxide, is a low-cost sensor that is applicable to multiple application.
Described air velocity transducer adopts WFS-1 type air velocity transducer, and the vane of this sensor and weathercock are by high-weatherability, high-strength engineering plastic manufacture, and sensor housing is used the ABS engineering plastics to be shaped, and upper-lower casing is sealed by rubber o-ring.Internal circuit is all processed through the anti-paint of spraying three, and whole air velocity transducer has the compliance of good adverse environment resistant.
Compared with prior art, the beneficial effect had is the utility model:
(1) by the gas density in monitoring tunnel methane, carbonomonoxide concentration Real-Time Monitoring tunnel, realize safety in production.
(2) by data transmission interface and systems soft ware intelligent processing method, by terminal, shown, and with sound and light alarm, preparation can be arranged, prediction arranged prevent gas hidden danger, guaranteed that tunnel carries out without any confusion in production safety management.
The accompanying drawing explanation
Fig. 1 is the overall system block diagram.
The specific embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment 1:
As shown in Figure 1, the utility model is in order to overcome the defect of prior art, read in real time each sensing data in outstation by Surveillance center's computer, and store data in computer, by data analysis, judge whether the gas density in tunnel exceeds standard, and give in time safety instruction and warning.
A kind of tunnel gas monitoring system, mainly by methane transducer, carbon monoxide transducer, air velocity transducer, outstation, audible-visual annunciator and Surveillance center's computer, formed, methane transducer, carbon monoxide transducer and air velocity transducer are connected with outstation respectively, and outstation is connected with the Surveillance center computer with audible-visual annunciator respectively.In tunnel, face and two lining chassis and other specific positions are installed respectively outstation, outstation connects respectively 2 methane transducers, 1 carbon monoxide transducer, the fast sensor of 1 typhoon and 1 temperature pick up, near 1 Surveillance center's computer of security monitoring tunnel portal indoor location on duty, 1 data transmission interface and 1 cover audible-visual annunciator, in hole, outstation is connected with the Surveillance center computer by cable.Surveillance center's computer reads each sensing data in outstation in real time, and stores data in computer, by data analysis, judges whether the gas density in tunnel exceeds standard, and gives in time safety instruction and warning.
Embodiment 2:
The present embodiment has proposed a kind of preferred structure of tunnel gas monitoring system on the basis of embodiment 1, and described methane transducer is selected low-concentration methane sensor, and model is KG9701A.Methane transducer is mainly the ambient parameter that gathers tunnel, and the KG9701A methane transducer can convert down-hole biogas to the standard electric signal continuously and automatically and flow to relevant device, and has and show on the spot gas concentration, and the functions such as sound and light alarm transfinite.
Described carbon monoxide transducer adopts the MQ-7 gas sensor.The gas sensitive that the MQ-7 gas sensor is used is the lower tin ash of electrical conductivity in clean air.Adopt high low temperature cycle detection mode low temperature to detect carbon monoxide, the electrical conductivity of sensor increases with the CO in Air gas concentration, the spuious gas that high temperature adsorbs while cleaning low temperature.Use simple circuit by the variation of electrical conductivity, to be converted to the output signal corresponding with this gas concentration.The MQ-7 gas sensor is highly sensitive to carbon monoxide, and this sensor can detect the multiple gas containing carbon monoxide, is a low-cost sensor that is applicable to multiple application.
Described air velocity transducer adopts WFS-1 type air velocity transducer, and the vane of this sensor and weathercock are by high-weatherability, high-strength engineering plastic manufacture, and sensor housing is used the ABS engineering plastics to be shaped, and upper-lower casing is sealed by rubber o-ring.Internal circuit is all processed through the anti-paint of spraying three, and whole air velocity transducer has the compliance of good adverse environment resistant.
The above; it is only preferred embodiment of the present utility model; not the utility model is done to any pro forma restriction, any simple modification, equivalent variations that every foundation technical spirit of the present utility model is done above embodiment, within all falling into protection domain of the present utility model.
Claims (6)
1. a tunnel gas monitoring system, it is characterized in that: mainly by methane transducer, carbon monoxide transducer, air velocity transducer, outstation, audible-visual annunciator and Surveillance center's computer, formed, methane transducer, carbon monoxide transducer and air velocity transducer are connected with outstation respectively, and outstation is connected with the Surveillance center computer with audible-visual annunciator respectively.
2. a kind of tunnel gas monitoring system according to claim 1 is characterized in that: described outstation is arranged on respectively face in tunnel, two lining chassis places.
3. a kind of tunnel gas monitoring system according to claim 1 is characterized in that: described outstation connects respectively 2 methane transducers, 1 carbon monoxide transducer, 1 typhoon speed sensor and 1 temperature pick up.
4. a kind of tunnel gas monitoring system according to claim 1, it is characterized in that: described methane transducer is selected low-concentration methane sensor, and model is KG9701A.
5. a kind of tunnel gas monitoring system according to claim 1, is characterized in that: described carbon monoxide transducer employing MQ-7 gas sensor.
6. a kind of tunnel gas monitoring system according to claim 1, is characterized in that: described air velocity transducer employing WFS-1 type air velocity transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320421511 CN203362230U (en) | 2013-07-16 | 2013-07-16 | Tunnel gas monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320421511 CN203362230U (en) | 2013-07-16 | 2013-07-16 | Tunnel gas monitoring system |
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| Publication Number | Publication Date |
|---|---|
| CN203362230U true CN203362230U (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320421511 Expired - Fee Related CN203362230U (en) | 2013-07-16 | 2013-07-16 | Tunnel gas monitoring system |
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| CN (1) | CN203362230U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267170A (en) * | 2014-09-28 | 2015-01-07 | 中铁隧道集团有限公司 | Method for wirelessly monitoring gas between excavation working face of tunnel and monitoring substation |
| CN104405443A (en) * | 2014-10-16 | 2015-03-11 | 中国矿业大学(北京) | Coal and gas outburst alarming method of coal face |
| CN109026158A (en) * | 2018-09-25 | 2018-12-18 | 湖南科技大学 | Tunnel gas containing coal and ventilation condition remote real time monitoring device |
| 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 |
-
2013
- 2013-07-16 CN CN 201320421511 patent/CN203362230U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267170A (en) * | 2014-09-28 | 2015-01-07 | 中铁隧道集团有限公司 | Method for wirelessly monitoring gas between excavation working face of tunnel and monitoring substation |
| CN104267170B (en) * | 2014-09-28 | 2016-01-20 | 中铁隧道集团有限公司 | Wireless gas monitoring method between a kind of tunnel work face and outstation |
| CN104405443A (en) * | 2014-10-16 | 2015-03-11 | 中国矿业大学(北京) | Coal and gas outburst alarming method of coal face |
| CN109026158A (en) * | 2018-09-25 | 2018-12-18 | 湖南科技大学 | Tunnel gas containing coal and ventilation condition remote real time monitoring device |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20131225 Termination date: 20150716 |
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| EXPY | Termination of patent right or utility model |