CN205424432U - On -vehicle overhead type multiple beam laser natural gas leakage telegauge - Google Patents
On -vehicle overhead type multiple beam laser natural gas leakage telegauge Download PDFInfo
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- CN205424432U CN205424432U CN201620184387.5U CN201620184387U CN205424432U CN 205424432 U CN205424432 U CN 205424432U CN 201620184387 U CN201620184387 U CN 201620184387U CN 205424432 U CN205424432 U CN 205424432U
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Abstract
An object of the utility model is to provide an on -vehicle overhead type multiple beam laser natural gas leakage telegauge has solved long distance natural gas pipe line and has patrolled and examined needs a large amount of manpowers of consumption and the artifical technical problem such as traffic safety that bring that patrol and examine. But this system is based on the tuning diode absorption spectrum technique, including cloud platform and laser telemetry appearance. The position of its medium cloud platform control laser telemetry appearance realizes that the fan beam that the telegauge sent can carry out wider cover to the burning line, greatly reduces the false dismissal probability to the detection of different targets, non - same distance, and when the methane concentration value of a certain position was higher than the setting value, real -time geographic coordinates was obtained to the GPS module, and GPRS communication module passes concentration information and coordinate figure back monitor, and on -vehicle map carries out the mark to the leakage point simultaneously, and the convenience is investigated in the future and is keeped in repair.
Description
Technical field
The utility model belongs to natural gas leaking detection field, is specially a kind of vehicle mounted overhead type multi-beam laser natural gas leaking remote sensing instrument.
Background technology
Along with a large amount of development and utilizations of the energy, methane gas is increasing on the work of resident and the impact of life.Popularizing with China combustion gas to family engineering, the personnel, the loss event of property that cause because of gas leakage in burning line increase increasingly.Government, enterprise and society are to gas pipeline safety and the pay attention to day by day of environmental protection, and the safety patrol inspection of gas pipeline, especially leak detection increasingly seem important.
In the gas sensor of current natural gas pipeline leakage testing, chemical sensor is in the majority, but it generally has response time length, easily poisoning and easily by shortcomings such as other gas interference.And due to natural gas line distance, patrol and examine and need to consume substantial amounts of manpower and materials.
In recent years, the extensive application of spectral absorption technical know-how so that laser instrument detection concentration of methane gas has become as a kind of trend.Therefore, how to make full use of spectral technique realize natural gas line quick, to detect extensively, accurately will be a problem with applications well prospect.
Summary of the invention
The purpose of this utility model is to provide a kind of vehicle mounted overhead type multi-beam laser natural gas leaking remote sensing instrument, solves distance natural gas line and patrols and examines and need to consume a large amount of manpower and the technical problem such as traffic safety that manual inspection is brought.
The utility model adopts the following technical scheme that realization: a kind of vehicle mounted overhead type multi-beam laser natural gas leaking remote sensing instrument, including a laser telemeter；Described laser telemeter includes ray machine R-T unit, signal processing apparatus and data source and sink；Described ray machine R-T unit includes multiple first collimators, concave mirror and the detector set that laser instrument, beam splitter and beam splitter exit end match；Laser emitting end is connected with beam splitter incidence end；Each exit end of beam splitter is all connected by optical fiber and a first collimator；The reflecting surface of described concave mirror is positioned at the rear of first collimator exit end to collect the scattered light of the exploring laser light through first collimator outgoing；Described detector set is arranged in the optically focused focus of concave mirror；Described signal processing apparatus includes signal transacting mainboard；The signal output part of detector set is connected with the signal input part of signal transacting mainboard；Described data source and sink includes GPS location and GPRS communication module；The signal output part of described signal transacting mainboard is connected with the signal input part of GPS location and GPRS communication module.
The problem existed for prior art, the utility model discloses a kind of vehicle mounted overhead type multi-beam laser natural gas leaking remote sensing instrument, for detecting the leak case of gas pipeline fast and accurately.Described vehicle mounted overhead type multi-beam laser natural gas leaking remote sensing instrument can be with the detection along the line to burning line of speed per hour 40km/h.The methane gas sensitivity of detection reaches 5ppm m, simultaneously can be by parameters such as the locus at leakage, synchronous feedback, to gas pipeline Control Room, can the most efficiently pinpoint the leakage situation of instruction Urban Pipeline Carrying Natural Gas, reduces the personnel and property loss caused because of gas leakage.In conjunction with digital city system, can will more effectively, more intuitively show the timing variations of leak position, the order of severity, beneficially commanding and decision-making person's disposal to accident.The utility model not only can be used for the detection of natural gas leaking it can also be used to the detection of other gas.
Further, the plurality of first collimator is fan-shaped array and sector is positioned at vertical plane so that the multi beam exploring laser light of outgoing is a fan-shaped arrangement.
Laser carries out equal proportion beam splitting by beam splitter, beat on ground in sector after multiple collimating device collimations, it is possible to achieve covering larger range of to roadside pipeline, the most a branch of in multiple beam leakage detected, i.e. can determine that this region exists leakage possibility, reduce false dismissal probability.
The laser signal that ground scatter is returned by laser collection system by concave mirror is collected, and then laser converge in detector surface, and the absorption signal received is processed by signal processing apparatus, is finally inversed by real-time methane concentration value.
GPS location in system and GPRS communication module, when the concentration value in a certain place is higher than the alarming value set, GPS obtains real-time coordinates value, is then passed through GPRS communication module and data is transmitted to terminal monitoring system, it is simple to track walker investigates further and keeps in repair.
Further, indication laser and the second collimater being connected with indication laser are also included；Described second collimater is located at the lower section of the first collimator of bottom and exit direction is parallel with the exit direction of this first collimator.
The instruction laser that indication laser is launched, for detection position is carried out auxiliary positioning, accurately determines that detection position particularly occurs the pipeline location of leakage.
Further, described laser telemeter also includes that one is horizontally disposed with and the cylindrical case of front and back end opening；Described signal transacting mainboard is arranged on the interior side body of shell, and described laser instrument, beam splitter, indication laser and GPS location and GPRS communication module are installed in the top of signal transacting mainboard；The plurality of first collimator and the second collimater are all arranged on the front port of shell and exit end towards outside by support and transparent window film；Described concave mirror is arranged on the rear port of shell and reflecting surface towards case nose.
As it is shown in figure 1, laser telemeter described in the utility model is provided with a shell, before and after shell, end is respectively equipped with collimater and concave mirror；Remaining device is installed in enclosure, it is simple to the integrated and assembling of each parts.
Further, The Cloud Terrace is also included；Described laser telemeter is fixed on The Cloud Terrace by shell.
Laser telemeter can follow The Cloud Terrace carry out 360 degree rotate freely and the angle of pitch regulation, it is possible to achieve vehicle's surroundings different azimuth is detected.
Leakage region is investigated further by track walker according to coordinate position, that can effectively improve distance natural gas transmission pipeline patrols and examines efficiency, reduce human cost, the false dismissal probability during the distribution mode of covering of the fan light beam reduces motor vehicle Fast marching to a great extent simultaneously greatly.
Detection car travels along gas distributing system with the speed less than 40km/h, owing to pipeline position is not fixed, thus fan beam greatly improves detection probability, if the pipeline in the range of detection car side 25m has natural gas leaking, system just can capture gas leakage, and leakage point is positioned, facilitate follow-up investigation.Native system can effectively solve distance natural gas line and patrol and examine and need to consume a large amount of manpower and the problem such as traffic safety that manual inspection is brought.
Accompanying drawing explanation
The structural representation of Fig. 1 laser telemeter described in the utility model.
Structural representation when Fig. 2 the utility model is specifically applied.
1-concave mirror, 2-detector set, 3-signal transacting mainboard, 4-laser instrument, 5-beam splitter, 6-first collimator, 7-optical fiber, 8-coaxial cable, 9-GPS location and GPRS communication module, 10-indication laser, 11-The Cloud Terrace, 12-laser telemeter, 13-the second collimater, 14-shell, 15-gas leakage, 16-burning line.
Detailed description of the invention
A kind of vehicle mounted overhead type multi-beam laser natural gas leaking remote sensing instrument, including a laser telemeter 12；Described laser telemeter 12 includes ray machine R-T unit, signal processing apparatus and data source and sink；Described ray machine R-T unit includes multiple first collimators 6, concave mirror 1 and the detector set 2 that laser instrument 4, beam splitter 5 match with beam splitter 5 exit end；Laser instrument 4 exit end is connected with beam splitter 5 incidence end；Each exit end of beam splitter 5 is all connected with a first collimator 6 by optical fiber 7；The reflecting surface of described concave mirror 1 is positioned at the rear of first collimator 6 exit end to collect the scattered light of the exploring laser light through first collimator 6 outgoing；Described detector set 2 is arranged in the optically focused focus of concave mirror 1；Described signal processing apparatus includes signal transacting mainboard 3；The signal output part of detector set 2 is connected with the signal input part of signal transacting mainboard 3；Described data source and sink includes GPS location and GPRS communication module 9；The signal output part of described signal transacting mainboard 3 is connected with the signal input part of GPS location and GPRS communication module 9.
The plurality of first collimator 6 is in fan-shaped array and sector is positioned at vertical plane so that the multi beam exploring laser light of outgoing is a fan-shaped arrangement.
Also include indication laser 10 and the second collimater 13 being connected with indication laser 10；Described second collimater 13 is located at the lower section of the first collimator 6 of bottom and exit direction is parallel with the exit direction of this first collimator 6.
Described laser telemeter 12 also includes that one is horizontally disposed with and the cylindrical case 14 of front and back end opening；Described signal transacting mainboard 3 is arranged on the interior side body of shell 14, and described laser instrument 4, beam splitter 5, indication laser 10 and GPS location and GPRS communication module 9 are installed in the top of signal transacting mainboard 3；The plurality of first collimator 6 and the second collimater 13 are all arranged on the front port of shell 14 and exit end towards outside by support and transparent window film；Described concave mirror 1 is arranged on the rear port of shell 14 and reflecting surface towards shell 14 front end.As it is shown in figure 1, transparent window film is arranged on the front port of shell 14, it is used for fixing first, second collimater, and the scattered light being easy to exploring laser light passes through.
Also include The Cloud Terrace 11；Described laser telemeter 12 is fixed on The Cloud Terrace 11 by shell 14.
Described laser instrument 4 uses tunable diode laser；Described detector set 2 is connected with signal transacting mainboard 3 by coaxial cable 8.
When detecting the specific compound that light beam passes through in light path, the radiant light that only those frequencies are consistent is absorbed, thus is produced characteristic absorption band, obtains a spectral absorption figure, just as " fingerprint ", may be used to determine the concentration of compound.The scattered light of detection light beam is gathered by detector group 2 after being reflected back toward concave mirror 1 and is converted to the corresponding signal of telecommunication and inputs to signal transacting mainboard 3.The characteristic absorption spectrum collected is resolved by signal transacting mainboard 3, thus obtains real-time methane concentration data.What signal transacting mainboard was used be analyzed spectrum and then show that the method for gas to be measured (methane) concentration is technology known in the field, and the software used also is known software.Described data source and sink includes GPS location and GPRS communication module, and when high concentration data being detected, GPS location and GPRS communication module obtain real-time geographic coordinate value, and information sends back Control Room in time, it is simple to investigate in the future and keep in repair.
Mode associated with detector employing is multiple, to increase concave mirror field of view of receiver.
Workflow of the present utility model is as follows:
Self-inspection and carry out background noise level calculation during system boot, deducts for background concentration.Owing to city gas pipeline is normally at below road green belt and pavement, regulate The Cloud Terrace orientation, by instruction laser positioning, enable fan beam to cover whole greenbelt or pavement.When vehicle advances along pipeline, as a certain position has gas to leak, then detector will send back Control Room by geographical coordinate, and this position is marked by vehicular map simultaneously, it is simple to investigation maintenance.
Owing to detection light beam is that sector covers whole greenbelt or pavement, if any a branch of laser detection is to leakage, i.e. can determine that this position exists leakage possibility, this mode can reduce false dismissal probability greatly.
Claims (6)
1. a vehicle mounted overhead type multi-beam laser natural gas leaking remote sensing instrument, it is characterised in that include a laser telemeter (12)；Described laser telemeter (12) includes ray machine R-T unit, signal processing apparatus and data source and sink；Described ray machine R-T unit includes multiple first collimators (6), concave mirror (1) and the detector set (2) that laser instrument (4), beam splitter (5) and beam splitter (5) exit end match；Laser instrument (4) exit end is connected with beam splitter (5) incidence end；Each exit end of beam splitter (5) is all connected with a first collimator (6) by optical fiber (7)；The reflecting surface of described concave mirror (1) is positioned at the rear of first collimator (6) exit end to collect the scattered light of the exploring laser light through first collimator (6) outgoing；Described detector set (2) is arranged in the optically focused focus of concave mirror (1)；Described signal processing apparatus includes signal transacting mainboard (3)；The signal output part of detector set (2) is connected with the signal input part of signal transacting mainboard (3)；Described data source and sink includes GPS location and GPRS communication module (9)；The signal output part of described signal transacting mainboard (3) is connected with the signal input part of GPS location and GPRS communication module (9).
2. vehicle mounted overhead type multi-beam laser natural gas leaking remote sensing instrument as claimed in claim 1, it is characterised in that the plurality of first collimator (6) is in fan-shaped array and sector is positioned at vertical plane so that the multi beam exploring laser light of outgoing is a fan-shaped arrangement.
3. vehicle mounted overhead type multi-beam laser natural gas leaking remote sensing instrument as claimed in claim 2, it is characterised in that also include indication laser (10) and the second collimater (13) being connected with indication laser (10)；Described second collimater (13) is located at the lower section of the first collimator (6) of bottom and exit direction is parallel with the exit direction of this first collimator (6).
4. vehicle mounted overhead type multi-beam laser natural gas leaking remote sensing instrument as claimed in claim 3, it is characterised in that described laser telemeter (12) also includes that is horizontally disposed with and the cylindrical case (14) of front and back end opening；Described signal transacting mainboard (3) is arranged on the interior side body of shell (14), and described laser instrument (4), beam splitter (5), indication laser (10) and GPS location and GPRS communication module (9) are installed in the top of signal transacting mainboard (3)；The plurality of first collimator (6) and the second collimater (13) are all arranged on the front port of shell (14) and exit end towards outside by support and transparent window film；Described concave mirror (1) is arranged on the rear port of shell (14) and reflecting surface towards shell (14) front end.
5. vehicle mounted overhead type multi-beam laser natural gas leaking remote sensing instrument as claimed in claim 4, it is characterised in that also include The Cloud Terrace (11)；Described laser telemeter (12) is fixed on The Cloud Terrace (11) by shell (14).
6. the vehicle mounted overhead type multi-beam laser natural gas leaking remote sensing instrument as described in right wants 1 ~ 5 any one, it is characterised in that described laser instrument (4) uses tunable diode laser；Described detector set (2) is connected with signal transacting mainboard (3) by coaxial cable (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620184387.5U CN205424432U (en) | 2016-03-11 | 2016-03-11 | On -vehicle overhead type multiple beam laser natural gas leakage telegauge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620184387.5U CN205424432U (en) | 2016-03-11 | 2016-03-11 | On -vehicle overhead type multiple beam laser natural gas leakage telegauge |
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| CN205424432U true CN205424432U (en) | 2016-08-03 |
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| CN201620184387.5U Expired - Fee Related CN205424432U (en) | 2016-03-11 | 2016-03-11 | On -vehicle overhead type multiple beam laser natural gas leakage telegauge |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124130A (en) * | 2016-08-17 | 2016-11-16 | 山西中科华仪科技有限公司 | A kind of automatic detection device for natural gas leaking and method |
| CN107035972A (en) * | 2017-03-24 | 2017-08-11 | 北京华夏艾科激光科技有限公司 | A kind of gas pipe inspection car intelligent inspection system |
| 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 |
| CN109340581A (en) * | 2018-11-21 | 2019-02-15 | 郑州如阳科技有限公司 | A kind of lateral Blind Test scanning means of combustion gas buried pipeline leakage |
| 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 |
| CN109630907A (en) * | 2019-02-27 | 2019-04-16 | 北京航星网讯技术股份有限公司 | Vehicle-mounted laser CH_4 detection device |
| CN110390737A (en) * | 2019-07-25 | 2019-10-29 | 新奥（中国）燃气投资有限公司 | A kind of gas leakage intelligent polling method and intelligent patrol detection vehicle |
| CN110388568A (en) * | 2019-07-25 | 2019-10-29 | 新奥（中国）燃气投资有限公司 | A kind of gas leakage intelligent polling method, apparatus and system |
| CN110442127A (en) * | 2019-07-15 | 2019-11-12 | 广州杰赛科技股份有限公司 | Intelligent polling method, equipment and device |
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- 2016-03-11 CN CN201620184387.5U patent/CN205424432U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106124130B (en) * | 2016-08-17 | 2018-11-23 | 山西中科华仪科技有限公司 | A kind of automatic detection device and method for natural gas leaking |
| CN106124130A (en) * | 2016-08-17 | 2016-11-16 | 山西中科华仪科技有限公司 | A kind of automatic detection device for natural gas leaking and method |
| CN107035972A (en) * | 2017-03-24 | 2017-08-11 | 北京华夏艾科激光科技有限公司 | A kind of gas pipe inspection car intelligent inspection system |
| CN107035972B (en) * | 2017-03-24 | 2019-04-23 | 北京华夏艾科激光科技有限公司 | A kind of automobile-used intelligent inspection system of gas pipe inspection |
| 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 |
| CN109340581B (en) * | 2018-11-21 | 2024-04-09 | 郑州如阳科技有限公司 | Transverse blind test scanning device for gas buried pipeline leakage |
| CN109340581A (en) * | 2018-11-21 | 2019-02-15 | 郑州如阳科技有限公司 | A kind of lateral Blind Test scanning means of combustion gas buried pipeline leakage |
| 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 |
| CN109630907A (en) * | 2019-02-27 | 2019-04-16 | 北京航星网讯技术股份有限公司 | Vehicle-mounted laser CH_4 detection device |
| CN109630907B (en) * | 2019-02-27 | 2020-05-22 | 北京航星网讯技术股份有限公司 | Vehicle-mounted laser methane detection device |
| CN110442127A (en) * | 2019-07-15 | 2019-11-12 | 广州杰赛科技股份有限公司 | Intelligent polling method, equipment and device |
| CN110442127B (en) * | 2019-07-15 | 2022-06-17 | 广州杰赛科技股份有限公司 | Intelligent inspection method, equipment and device |
| CN110388568A (en) * | 2019-07-25 | 2019-10-29 | 新奥（中国）燃气投资有限公司 | A kind of gas leakage intelligent polling method, apparatus and system |
| CN110388568B (en) * | 2019-07-25 | 2021-08-17 | 新奥（中国）燃气投资有限公司 | Intelligent inspection method, device and system for gas leakage |
| CN110390737A (en) * | 2019-07-25 | 2019-10-29 | 新奥（中国）燃气投资有限公司 | A kind of gas leakage intelligent polling method and intelligent patrol detection vehicle |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20200311 |