CN103884678A - Automatic cruise type laser methane gas concentration monitoring device - Google Patents
Automatic cruise type laser methane gas concentration monitoring device Download PDFInfo
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- CN103884678A CN103884678A CN201410151305.2A CN201410151305A CN103884678A CN 103884678 A CN103884678 A CN 103884678A CN 201410151305 A CN201410151305 A CN 201410151305A CN 103884678 A CN103884678 A CN 103884678A
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Abstract
The invention provides an automatic cruise type laser methane gas concentration monitoring device which comprises a laser reflection plate, sensor probes, a laser detection host arranged in a safety control center chamber, a monitoring upper computer, an intelligent automatic cruise holder and a holder control server, wherein the laser reflection plate is arranged in an important checking region in which methane gas possibly leaks out; the sensor probes are erected on the intelligent automatic cruise holder and are all arranged in working regions of a gas station, a checking station, a gas tank station and the like; the sensor probes are connected with the laser detection host arranged in the safety control center chamber through optical cables. The automatic cruise type laser methane gas concentration monitoring device has the characteristics of high security, simplicity and convenience in arrangement and automation in monitoring a plurality of important regions, and is generally suitable for industries such as petroleum, chemical engineering, coal, energy transportation and the like.
Description
Technical field
The present invention relates to gas detection technology field, especially a kind of automatic cruising formula laser methane gas concentration inspect device.
Background technology
At present, petrochemical complex gas is as the major hidden danger of workspace, and perform region need to adopt a kind of reliable, stable method to detect in real time its concentration to inflammable gas, monitors it and is no more than critical value, to ensure routine safety production.Because methane content in air exceedes 5.3%, meet fire and will blast, so be again a kind of explosion hazard gases, therefore, in inflammable gas safety in production is administered, gas control becomes the core of improvement, and it is the key point of effective prevention work region gas accident that gas density is detected.
Conventional combustible gas probe is mainly divided into hand-held detector, single-point type detector, multipoint mode detector.Hand-held detector is mainly used in carries out routine safety production maintenance, maintenance job.Single-point type detector is mainly used in the monitoring of single area, is used for family.Multipoint mode is mainly used in the monitoring in large region, in commercial production or large-area covil construction, uses.But in the time that surveyed area area is very large, multipoint mode detector needs independent wiring when to each check point installation and measuring device, workload and the consumption of materials of installation wiring are sharply increased with the increase of check point, and debugging work is very loaded down with trivial details.Standard reflecting plate also can be described as standard mesh target (Diffuse Reflectance Standards), comprises standard reflectivity blank; The standard grayscale plate of various reflectivity; The Standard colour board of different colours; The more mutatis mutandis wavelength of wavelength is compared with quasi-reflection plate; Infrared 700nm-20um's is infrared with the gold-plated standard reflecting plate of mark; Fluorescence standard plate under different excitation wavelengths.The present invention selects gold-plated infrared external reflection Target Board to be called for short laser reflection plate, high diffuse reflectance reaches as high as 99%, good permanance, water proofing property, corrosion-resistant, be widely used in space flight and laser application, difficult drop-off, long service life, tasteless, nontoxic, high stability, high-low temperature resistant, radiation hardness, stands various test condition tests.
The Cloud Terrace automatic cruising function is widely used in video monitoring system at present, the present invention is applied to gas detection technology field by The Cloud Terrace automatic cruising function first, the comprehensive above-mentioned problem running into, sensor probe is erected on the The Cloud Terrace of intelligent automatic cruising, set in advance a methane gas Leak Detection point rotary motion trace, make The Cloud Terrace by this track cycle rotation.
, all there is above-mentioned security classes problem in other large-scale application places of all methane gass described above or inflammable gas.Therefore, utilize laser sensor probe, be erected on the The Cloud Terrace of intelligent automatic cruising, controlling under the control of The Cloud Terrace, the function of realize regularly, the periodically automatic methane gas that detects fixed target and on-fixed target area leaking, territory, focus detection area, hangs laser reflection plate on each emphasis Leak Detection point, is beneficial to obtain better detection effect.How in the time that methane gas detects, the initial period is found, can be safely, efficiently directly judge and the leakage scope of methane gas in large-scale application places become the problem of needing solution badly.
Summary of the invention
(1) technical matters that will solve
The object of the invention is, a kind of automatic cruising formula laser methane gas concentration inspect device is provided, reflecting plate is fixed in advance the region that methane gas leaks may occur, can realize the detection to there is methane gas leakage region, laser sensor probe holder is located on the The Cloud Terrace of intelligent automatic cruising, controlling under the control of The Cloud Terrace, the cruise allocating time of track and the track that respectively cruises of control, realize timing, periodically automatically, detect the function of the methane gas leakage of fixed target and on-fixed target area, territory, focus detection area, on each emphasis Leak Detection point, hang laser reflection plate, be beneficial to the reflection source that receives laser reflection plate, be convenient to search Leakage Gas point, can not produce owing to missing the danger such as the blast that leakage point causes, reduce to greatest extent potential safety hazard node, can realize fast the judgement of methane being leaked to scope simultaneously, and be shown in monitoring master system, adapt to the on-the-spot unattended requirement of Petroleum Production.
(2) technical scheme
For solving the problems of the technologies described above, the invention provides a kind of automatic cruising formula laser methane gas concentration inspect device, comprise: The Cloud Terrace and the cradle head control server of laser reflection plate, sensor probe, the laser detection main frame that is arranged on security control center chamber, monitoring host computer, intelligent automatic cruising, laser reflection plate is arranged on the emphasis inspection area that methane gas leakage may occur.
Sensor probe is erected on the The Cloud Terrace of intelligent automatic cruising; Sensor probe is installed on the workspaces such as gas station, test house, gas tank station.
Sensor probe connects by optical cable the laser detection main frame that is arranged on security control center chamber respectively; Optical cable transmission light signal distance can reach ten kilometers.
Detect main frame connects the monitoring host computer that is arranged on place of safety network interface by netting twine.
Laser methane sensor probe Output of laser signal is by laser reflection plate reflected light signal; Laser methane sensor probe receives the laser signal of laser reflection plate reflection.
The The Cloud Terrace of intelligence automatic cruising connects the cradle head control server that is arranged on place of safety by electric wire.
For solving the problems of the technologies described above, another kind of technical scheme provided by the invention is: a kind of automatic cruising formula laser methane gas concentration inspect method is provided, comprises:
Excitation laser signal, aims at reflecting plate by laser signal;
The The Cloud Terrace of intelligence automatic cruising, wherein The Cloud Terrace is by the cruise allocating time of track and the track that respectively cruises of cradle head control server controls, the track that cruises comprises preset methane gas Leak Detection point and acquiescence The Cloud Terrace preset point, cradle head control server determines according to allocating time the track that cruises that The Cloud Terrace need to be carried out, and the The Cloud Terrace preset point of setting in the track that cruises of notifying cloud platform rotation to carry out to needs;
Transmitting excitation laser light beam, wherein, the light path of excitation laser light beam is passed through the reflecting plate on the emphasis inspection area that methane gas leakage may occur;
Reflection is through the laser beam in methane Leak Detection district;
Receive the reflect beams of laser light through methane Leak Detection district, obtain target laser signal;
The spectrum of evaluating objects laser signal, demonstrate the concentration value of methane according to the spectrum change host computer display module of target laser signal, judge whether methane Leak Detection district has methane to leak, and send alerting signal by host computer alarm module in the situation that being determined with methane leakage.
(3) beneficial effect
Be different from background technology, the invention provides a kind of automatic cruising formula laser methane gas concentration inspect device, be provided with on the The Cloud Terrace that sensor probe is erected at intelligent automatic cruising, laser reflection plate is fixed in advance the region that methane gas leaks may occur, be beneficial to the cruise allocating time of track and the track that respectively cruises of cradle head control server controls, the reflection source of reception laser reflection plate, check point is many, debugging is convenient, and cost is low, and efficiency is high.The present invention pops one's head in by passive sensor and detects main frame optical fiber and be connected transmitting optical signal, makes perception velocities 1-2s, the life-span is long, the demarcation cycle is long, and optical fiber connection ultimate range can reach ten kilometers.Sensor probe connects the detection main frame that is arranged on excitation laser signal in place of safety by optical cable, and laser light beam is passive detection body, the function of realize regularly, the periodically automatic methane gas that detects fixed target and on-fixed target area leaking, territory, focus detection area, on each emphasis Leak Detection point, hang laser reflection plate, be beneficial to obtain better detection effect.Meet the demand detecting in petroleum gas station, test house or the application of gas tank station completely.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is space of the present invention schematic diagram;
Fig. 3 is schematic flow sheet of the present invention.
Embodiment
For making object of the present invention, content and advantage clearer, below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.Refer to Fig. 1 and Fig. 2, present embodiment provides a kind of automatic cruising formula laser methane gas concentration inspect device, comprise: The Cloud Terrace 2 and the cradle head control server 5 of laser reflection plate 9, sensor probe 1, the laser detection main frame 3 that is arranged on security control center chamber, monitoring host computer 4, intelligent automatic cruising, laser reflection plate 8 is arranged on the emphasis inspection area 11 that methane gas leakage may occur.Sensor probe 1 is erected on the The Cloud Terrace 2 of intelligent automatic cruising; Sensor probe 1 is installed on the workspaces such as gas station, test house, gas tank station.Probe sensor 1 connects by optical cable 6 the laser detection main frame 3 that is arranged on security control center chamber.Optical cable 6 transmitting optical signal distances can reach ten kilometers.Detect main frame 3 connects the monitoring host computer 4 that is arranged on place of safety network interface by netting twine 8.Laser methane sensor probe 1 Output of laser signal is by laser reflection plate 9 reflected light signals.Laser methane sensor 1 probe receives the laser signal that laser reflection plate 9 reflects.The The Cloud Terrace 2 of intelligence automatic cruising connects by electric wire 7 the cradle head control server 5 that is arranged on place of safety.
More preferred, refer to Fig. 2, in order further spatially to determine the position range of gas leakage, sensor probe 1 is erected on the The Cloud Terrace 2 of intelligent automatic cruising, on gas station, field operations district, test house or operation oil producing region, gas tank station, all can pop one's head in 1 by sensor installation, laser reflection plate 9 comprises the first laser reflection plate 9, the second laser reflection plate 10 etc. that Leak Detection district 11 arranges.
Refer to Fig. 3, present embodiment provides a kind of automatic cruising formula laser methane gas concentration inspect device, and the method originates in step S401, detect main frame Emission Lasers signal, spectral information obtains, and laser signal is excited, light path control laser beam, laser signal is aimed at reflecting plate.
Step S402, the The Cloud Terrace of intelligence automatic cruising, wherein The Cloud Terrace is by the cruise allocating time of track and the track that respectively cruises of cradle head control server controls, the track that cruises comprises preset methane gas Leak Detection point and acquiescence The Cloud Terrace preset point, cradle head control server determines according to allocating time the track that cruises that The Cloud Terrace need to be carried out, and the The Cloud Terrace preset point of setting in the track that cruises of notifying cloud platform rotation to carry out to needs;
Step S403, transmitting excitation laser light beam, wherein, the light path of laser beam is through optical cable transmission, to sensor probe;
Step S404, the light path of excitation laser light beam is passed through the reflecting plate on the emphasis inspection area that methane gas leakage may occur;
Step S405, receives the laser beam through inflammable gas detection zone, obtains target laser signal.On probe, collimating element passes by optical fiber flange-interface access optical cable the concentration laser signal detecting back detection main frame.
Step S406, detect for main frame TDLAS technology (TDLAS is the abbreviation of Tunable Diode Laser Absorption Spectroscopy.Translator of Chinese: tunable diode laser absorption spectroscopy) analyze the spectrum change of the light signal that receives, the spectrum of evaluating objects laser signal, judge according to the spectrum change of target laser signal whether inflammable gas detection zone has methane gas to leak, and in the situation that being determined with combustible gas leakage, determine the position range of combustible gas leakage according to respective sensor probe.
Concrete, when methane concentration exceeds alarming value, detect main frame and monitor host computer and send alerting signal, show to control concentration is shown in and detects main frame and monitor host computer display screen.Staff takes safety measures according to alerting signal.
In the present embodiment, laser sensor probe holder is located on the The Cloud Terrace of intelligent automatic cruising, controlling under the control of The Cloud Terrace, the cruise allocating time of track and the track that respectively cruises of control, the function of realize regularly, the periodically automatic methane gas that detects fixed target and on-fixed target area leaking, territory, focus detection area, on each emphasis Leak Detection point, hang laser reflection plate, be beneficial to the reflection source that receives laser reflection plate, be convenient to search Leakage Gas point, measuring distance is also all ten kilometers of left and right.Meet the demand detecting in the application of Oilfield Operation District completely, can solve the problem of mentioning in background technology.Ability technician it should be understood that, the methane gas in other similar large-scale places detects all can apply technical scheme of the present invention, and can also be applied in widely industrial enterprise, large-scale oil field oil depot etc. needs emphasis to strengthen all indoor and outdoor surroundingses such as monitoring, strick precaution.Certainly the gas that need to monitor for other is as CO, SO
2deng, also can thought according to the present invention convert, belong to protection scope of the present invention.
These are only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes instructions of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. an automatic cruising formula laser methane gas concentration inspect device, comprise: The Cloud Terrace and the cradle head control server of laser reflection plate, sensor probe, the laser detection main frame that is arranged on security control center chamber, monitoring host computer, intelligent automatic cruising, laser reflection plate is arranged on the emphasis inspection area that methane gas leakage may occur;
Sensor probe is erected on the The Cloud Terrace of intelligent automatic cruising;
Sensor probe is installed on the workspaces such as gas station, test house, gas tank station.
2. a kind of automatic cruising formula laser methane gas concentration inspect device according to claim 1, is characterized in that, probe sensor connects the laser detection main frame that is arranged on security control center chamber by optical cable, and optical cable transmission light signal distance can reach ten kilometers; Detect main frame connects the monitoring host computer that is arranged on place of safety network interface by netting twine.
3. a kind of automatic cruising formula laser methane gas concentration inspect device according to claim 1, is characterized in that, laser methane sensor probe Output of laser signal is by laser reflection plate reflected light signal; Laser methane sensor probe receives the laser signal of laser reflection plate reflection.
4. a kind of automatic cruising formula laser methane gas concentration inspect device according to claim 1, is characterized in that, the The Cloud Terrace of intelligent automatic cruising connects the cradle head control server that is arranged on place of safety by electric wire.
5. a kind of automatic cruising formula laser methane gas concentration inspect device according to claim 1, its application characteristic is, comprising:
Excitation laser signal, aims at reflecting plate by laser signal;
The The Cloud Terrace of intelligence automatic cruising, wherein The Cloud Terrace is by the cruise allocating time of track and the track that respectively cruises of cradle head control server controls, the track that cruises comprises preset methane gas Leak Detection point and acquiescence The Cloud Terrace preset point, cradle head control server determines according to allocating time the track that cruises that The Cloud Terrace need to be carried out, and the The Cloud Terrace preset point of setting in the track that cruises of notifying cloud platform rotation to carry out to needs;
Transmitting excitation laser light beam, wherein, the light path of excitation laser light beam is passed through the reflecting plate on the emphasis inspection area that methane gas leakage may occur;
Reflection is through the laser beam in methane Leak Detection district;
Receive the reflect beams of laser light through methane Leak Detection district, obtain target laser signal;
The spectrum of evaluating objects laser signal, demonstrate the concentration value of methane according to the spectrum change host computer display module of target laser signal, judge whether methane Leak Detection district has methane to leak, and send alerting signal by host computer alarm module in the situation that being determined with methane leakage.
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| CN201410151305.2A CN103884678A (en) | 2014-04-16 | 2014-04-16 | Automatic cruise type laser methane gas concentration monitoring device |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101571A (en) * | 2014-07-27 | 2014-10-15 | 北京航星网讯技术股份有限公司 | Methane gas detecting method and device with laser distance-measuring function |
| CN105372178A (en) * | 2014-08-08 | 2016-03-02 | 仕富梅集团公司 | Alignment device and transmitter/receiver system with two angular degrees of freedom |
| CN106053736A (en) * | 2016-07-26 | 2016-10-26 | 中冶长天国际工程有限责任公司 | Rotary kiln valve set platform CO detection apparatus and method |
| CN106198881A (en) * | 2016-07-26 | 2016-12-07 | 中冶长天国际工程有限责任公司 | A kind of ignition furnace furnace roof CO detection device and detection method |
| CN106290720A (en) * | 2016-07-26 | 2017-01-04 | 中冶长天国际工程有限责任公司 | A kind of combustion gas blow CO&H2detection device and detection method |
| CN108051402A (en) * | 2017-12-13 | 2018-05-18 | 天津大学 | Drawing system and method are built in natural gas leaking gas distribution based on rotor wing unmanned aerial vehicle |
| CN109211913A (en) * | 2018-08-29 | 2019-01-15 | 大连晋为光电技术有限公司 | The method of the on-line proving of laser methane detection device and on-line performance diagnosis |
| CN109360381A (en) * | 2018-12-05 | 2019-02-19 | 大连兰特科技有限公司 | A kind of gas transmission station combustible gas leakage laser acquisition early warning system |
| CN109632671A (en) * | 2019-01-03 | 2019-04-16 | 北京航星网讯技术股份有限公司 | Speed and concentration compensation method and device in laser gas remote measurement |
| CN109632701A (en) * | 2019-01-10 | 2019-04-16 | 北京航星网讯技术股份有限公司 | The laser gas detection device for having compensated distance function and concentration offsets function |
| CN110379136A (en) * | 2019-07-26 | 2019-10-25 | 北京讯腾智慧科技股份有限公司 | Supervisory control for gas leak device and method for combustion gas station |
| CN110440146A (en) * | 2019-07-09 | 2019-11-12 | 青岛北创智能科技有限公司 | A kind of gas pipeline leakage point determines method, apparatus, robot and storage medium |
| CN110553587A (en) * | 2019-09-23 | 2019-12-10 | 新地能源工程技术有限公司 | Method for accurately positioning leakage point by using laser telemetering methane tester |
| CN110736816A (en) * | 2019-10-08 | 2020-01-31 | 西安安森智能仪器股份有限公司 | methane leakage detection and positioning method based on intelligent inspection robot |
| CN112577672A (en) * | 2020-11-06 | 2021-03-30 | 清华大学 | Methane remote sensing spatial distribution monitoring alarm system based on grid method |
| CN114460040A (en) * | 2022-01-10 | 2022-05-10 | 东北石油大学 | System and method for reconstructing methane leakage laser scanning chromatographic concentration field of natural gas station |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104101571A (en) * | 2014-07-27 | 2014-10-15 | 北京航星网讯技术股份有限公司 | Methane gas detecting method and device with laser distance-measuring function |
| CN105372178A (en) * | 2014-08-08 | 2016-03-02 | 仕富梅集团公司 | Alignment device and transmitter/receiver system with two angular degrees of freedom |
| CN106053736A (en) * | 2016-07-26 | 2016-10-26 | 中冶长天国际工程有限责任公司 | Rotary kiln valve set platform CO detection apparatus and method |
| CN106198881A (en) * | 2016-07-26 | 2016-12-07 | 中冶长天国际工程有限责任公司 | A kind of ignition furnace furnace roof CO detection device and detection method |
| CN106290720A (en) * | 2016-07-26 | 2017-01-04 | 中冶长天国际工程有限责任公司 | A kind of combustion gas blow CO&H2detection device and detection method |
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| CN109360381A (en) * | 2018-12-05 | 2019-02-19 | 大连兰特科技有限公司 | A kind of gas transmission station combustible gas leakage laser acquisition early warning system |
| CN109632671A (en) * | 2019-01-03 | 2019-04-16 | 北京航星网讯技术股份有限公司 | Speed and concentration compensation method and device in laser gas remote measurement |
| CN109632671B (en) * | 2019-01-03 | 2021-07-13 | 北京航星网讯技术股份有限公司 | Speed and concentration compensation method and device in laser gas remote measurement |
| CN109632701A (en) * | 2019-01-10 | 2019-04-16 | 北京航星网讯技术股份有限公司 | The laser gas detection device for having compensated distance function and concentration offsets function |
| CN110440146A (en) * | 2019-07-09 | 2019-11-12 | 青岛北创智能科技有限公司 | A kind of gas pipeline leakage point determines method, apparatus, robot and storage medium |
| CN110379136A (en) * | 2019-07-26 | 2019-10-25 | 北京讯腾智慧科技股份有限公司 | Supervisory control for gas leak device and method for combustion gas station |
| CN110553587A (en) * | 2019-09-23 | 2019-12-10 | 新地能源工程技术有限公司 | Method for accurately positioning leakage point by using laser telemetering methane tester |
| CN110736816A (en) * | 2019-10-08 | 2020-01-31 | 西安安森智能仪器股份有限公司 | methane leakage detection and positioning method based on intelligent inspection robot |
| CN112577672A (en) * | 2020-11-06 | 2021-03-30 | 清华大学 | Methane remote sensing spatial distribution monitoring alarm system based on grid method |
| CN114460040A (en) * | 2022-01-10 | 2022-05-10 | 东北石油大学 | System and method for reconstructing methane leakage laser scanning chromatographic concentration field of natural gas station |
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Application publication date: 20140625 |