CN110108651A - Gas leak point positioning device - Google Patents
Gas leak point positioning device Download PDFInfo
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- CN110108651A CN110108651A CN201910472186.3A CN201910472186A CN110108651A CN 110108651 A CN110108651 A CN 110108651A CN 201910472186 A CN201910472186 A CN 201910472186A CN 110108651 A CN110108651 A CN 110108651A
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- 238000001514 detection method Methods 0.000 claims abstract description 50
- 238000010183 spectrum analysis Methods 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims abstract description 3
- 238000010168 coupling process Methods 0.000 claims abstract description 3
- 238000005859 coupling reaction Methods 0.000 claims abstract description 3
- 239000013307 optical fiber Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000009776 industrial production Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
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- Engineering & Computer Science (AREA)
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- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention proposes a kind of gas leak point positioning devices, including control unit, gas detection cell and positioned light source and image acquisition units；The gas detection cell includes gas detection light source and photodetector, coaxial transmitting after the detection light beam for the specific wavelength that the gas detection light source issues issues positioning light beam coupling with positioned light source, the detection of gas leakage point is carried out, the detection light beam and the wavelength for positioning light beam be not identical；The photodetector receives reflected detection light beam, and transmits it to carry out spectrum analysis in described control unit in real time, judges whether there is object gas leakage, and gas leaks if it exists, then image acquisition units carry out Image Acquisition.The gas leak point positioning device improves the accuracy that gas leakage point quickly positions.
Description
Technical field
The present invention relates to Leakage inspection fields, and in particular to a kind of gas leak point positioning device.
Background technique
In recent years, industrial production safety monitoring becomes increasingly important with industry, rapid economic development, especially pair
The leakage monitoring of dangerous flammable explosive gas, it has also become the most important thing of industrial production safety detection.Because without sampling, being not required to
The advantages such as gas are contacted, so that spectrum telemetry obtains significant progress.
The country, the method that absorption spectrum is mostly used to the telemetry scheme of gas leakage.But the gas in industrial production
Its absorption line many places is located at except visible-range in infrared and ultraviolet band, is unfavorable for safety supervision personnel and examines to on-site target
The observation of measuring point.This is a great problem that current gaseous spectrum telemetry field must solve.
Gas remote measurement mostly uses point type to detect greatly, i.e., detects a region just for very little every time.And its monitoring range
Often very big, then tens meters small, then several hundred rice greatly are unfavorable for security staff and check, position to leakage point.How to leakage
The point quick precise marking in position improves working efficiency, prevention personal safety accident, becomes pendulum primarily asking in face of security staff
Topic.
Summary of the invention
In order to overcome above-mentioned defect existing in the prior art, the object of the present invention is to provide a kind of gas leak point positionings
Device.
In order to realize above-mentioned purpose of the invention, the present invention provides a kind of gas leak point positioning devices, including control
Unit, gas detection cell and positioned light source；
The gas detection cell includes gas detection light source and photodetector, the spy that the gas detection light source issues
The long detection light beam of standing wave and coaxial transmitting after the positioning light beam coupling that positioned light source issues, progress gas leakage point detection, institute
It is not identical as the wavelength of positioning light beam to state detection light beam；
The photodetector receives reflected detection light beam, and transmit it in real time in described control unit into
Row spectrum analysis judges whether there is object gas leakage.
The gas leak point positioning apparatus structure is simple, and gas detection light source and the coaxial setting of positioned light source optical axis lead to
Gas leakage point is marked by the positioning light beam for crossing positioned light source sending, and it is quickly positioningly accurate to improve gas leakage point
Property.It is also convenient for carrying out real-time monitoring to the gas of production scene simultaneously, gas-monitoring point and leakage point is grasped in real time, to safety check people
Member's first time processing gas leakage accident, reduction accident harm are of great significance.
The preferred embodiment of the application: the gas leak point positioning device further includes the Image Acquisition list connecting with control unit
Member, the hot spot that the positioned light source is formed is in the field range of described image acquisition unit, when there are gas for control unit judgement
When body leaks, described control unit controls image acquisition units and acquires realtime graphic.It is security staff by image acquisition units
Intuitive image information is provided, convenient for the quick judgement to leakage point position.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the schematic illustration of gas leak point positioning device；
Fig. 2 is by optical-fiber bundling device by the schematic illustration of gas detection light source and the coaxial setting of positioned light source optical axis.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, unless otherwise specified and limited, it should be noted that term " installation ", " connected ",
" connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, the connection being also possible to inside two elements can
, can also indirectly connected through an intermediary, for the ordinary skill in the art to be to be connected directly, it can basis
Concrete condition understands the concrete meaning of above-mentioned term.
As shown in Figure 1, the present invention provides a kind of gas leak point positioning device, including control unit (not shown), gas
Body detection unit (not shown), positioned light source 4 and image acquisition units 5, control unit are separately connected the gas detection cell
With image acquisition units 5, positioned light source 4 works independently, can also connect with control unit, control its work by control unit.
Gas detection cell includes gas detection light source and photodetector, the specific wavelength inspection that gas detection light source issues
Coaxial transmitting after survey light beam 1 is coupled with the positioning light beam 3 that positioned light source 4 issues, the detection light beam 1 and the wave for positioning light beam 3
Length is not identical, and gas detection light source issues detection light beam 1 and carries out the detection of gas leakage point, and photodetector receives reflected
Light beam 1 is detected, and transmits it to carry out spectrum analysis in control unit in real time, judges whether there is object gas leakage, here
Used analysis method is existing method, is not detailed herein.
The hot spot that the positioning light beam 3 that positioned light source 4 is issued is formed is arranged in the field range of image acquisition units 5
It is interior.When control unit is analyzed there are when object gas leakage, the synchronous triggering image acquisition units 5 of control unit are clapped
According to.When gas detection light source detects certain point, coaxially therewith because of positioned light source 4, therefore the area that light beam 3 is identified is positioned
Domain is detection zone, if the region, there are object gas leakage, the positioning light beam 3 that positioned light source 4 is issued is just fixed
Position has gone out gas leakage point, while the hot spot that the formation of light beam 3 is positioned at the leakage point can also be imaged in image acquisition units 5,
The formed image can be used to quick positioning of the safety supervision personnel to gas leakage point.
In the present embodiment, image acquisition units 5 are preferably but not limited to as video monitoring apparatus, such as camera.
Gas detection light source and the method for the coaxial setting of 4 optical axis of positioned light source are preferably two kinds:
The first: is as shown in Figure 1, the positioning light that detection light beam 1 and positioned light source 4 that gas detection light source issues are issued
For beam 3 by the coaxial setting of dichroscope 2, the detection light beam 1 that gas detection light source issues penetrates dichroscope 2 and positioned light source 4
The positioning light beam 3 of sending closes beam, coaxial transmitting.
Second: as shown in Fig. 2, the light output end of gas detection light source and positioned light source 4 is separately connected different optical fiber
Afterwards by optical-fiber bundling device 6 will test light beam 1 and positioning light beam 3 couple it is coaxial, then pass through the coaxial hair of optical fiber for reforming transmitting mirror 7
It penetrates.
The hot spot that the positioning light beam 3 that positioned light source 4 is issued is formed is arranged in the field range of image acquisition units 5
Preferred method be that positioned light source 4 and 5 light shaft coaxle of described image acquisition unit are arranged, the parallel meaning of light shaft coaxle, that is, optical axis
Think.
In the application, detection light beam 1 is special wavelength light, can be visible light, is also possible to black light, as long as can be right
Object gas is detected, and when being visible light, if environmental light intensity is very bright, the equally more difficult gas that navigates to of naked eyes is let out
Leak source, therefore, there is still a need for positioning light beams 3 at this time to position；The light that light beam 3 is with detects 1 different wave length of light beam is positioned, can be
Visible light is also possible to black light, it is only necessary to can be imaged in the image acquisition units；When positioning light beam 3 be can not
When light-exposed, image acquisition units are imaged using spectrum camera corresponding with the black light.
The luminous intensity of the preferred embodiment of the present embodiment, positioned light source 4 is adjustable, adjustable in the case that environmental light intensity is very bright
The luminous intensity for saving positioned light source 4, keeps it higher than ambient light intensity, is more advantageous to and navigates to gas leakage point.
When needing to take remote measurement, for more accurate locating gas leakage point, gas detection light source and positioned light source 4 are excellent
It selects but is not limited to laser.
Gas leakage point can be found in time for the ease of security staff, which further includes intelligent end
End, intelligent terminal and control unit communication connection, the object gas leakage point position that control unit acquires image acquisition units 5
Image is sent on intelligent terminal, is checked in time for security staff.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (6)
1. a kind of gas leak point positioning device, it is characterised in that: including control unit, gas detection cell and positioned light source；
The gas detection cell includes gas detection light source and photodetector, the certain wave that the gas detection light source issues
Coaxial transmitting after long detection light beam issues positioning light beam coupling with positioned light source, carries out the detection of gas leakage point, the detection
Light beam is not identical as the wavelength of positioning light beam；
The photodetector receives reflected detection light beam, and transmits it to carry out light in described control unit in real time
Spectrum analysis judges whether there is object gas leakage.
2. gas leak point positioning device according to claim 1, it is characterised in that: further include being connect with control unit
Image acquisition units, the hot spot that the positioned light source is formed work as control unit in the field range of described image acquisition unit
There are when gas leakage, described control unit controls image acquisition units and acquires realtime graphic for judgement.
3. gas leak point positioning device according to claim 1, it is characterised in that: what the gas detection light source issued
The positioning light beam that detection light beam and positioned light source are issued passes through the coaxial setting of dichroscope.
4. gas leak point positioning device according to claim 1, it is characterised in that: what the gas detection light source issued
The positioning light beam that detection light beam and positioned light source are issued is coupled coaxial by optical-fiber bundling device.
5. gas leak point positioning device according to claim 1, it is characterised in that: the positioned light source and described image
The setting of acquisition unit light shaft coaxle.
6. gas leak point positioning device according to claim 1, it is characterised in that: it further include intelligent terminal, the intelligence
It can terminal and described control unit communication connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910472186.3A CN110108651A (en) | 2019-05-31 | 2019-05-31 | Gas leak point positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910472186.3A CN110108651A (en) | 2019-05-31 | 2019-05-31 | Gas leak point positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110108651A true CN110108651A (en) | 2019-08-09 |
Family
ID=67493505
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910472186.3A Pending CN110108651A (en) | 2019-05-31 | 2019-05-31 | Gas leak point positioning device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189975A (en) * | 2020-01-08 | 2020-05-22 | 北京航天试验技术研究所 | Gas leakage positioning device and positioning method |
| CN115711858A (en) * | 2022-10-14 | 2023-02-24 | 北京英特威视科技有限公司 | Smoke and gas detection method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01213540A (en) * | 1988-02-22 | 1989-08-28 | Idemitsu Kosan Co Ltd | Leakage detecting system |
| JPH05142088A (en) * | 1991-03-27 | 1993-06-08 | Osaka Gas Co Ltd | Gas leakage detector |
| JP2003294573A (en) * | 2002-03-29 | 2003-10-15 | Osaka Gas Co Ltd | Gas leakage position indicator |
| US20060238741A1 (en) * | 2003-03-07 | 2006-10-26 | Hideki Ninomiya | Gas leakage monitoring method and its system |
| CN101226098A (en) * | 2008-01-31 | 2008-07-23 | 杭州大有科技发展有限公司 | Sulfur hexafluoride laser imaging leakage detector |
| CN101387568A (en) * | 2007-09-11 | 2009-03-18 | 上海电缆研究所 | Positioning method for leakage point of sulphur hexafluoride and positioning system thereof |
| JP2014185914A (en) * | 2013-03-22 | 2014-10-02 | Mitsubishi Heavy Ind Ltd | Device and method for detecting fuel leakage |
| US20190003918A1 (en) * | 2017-06-30 | 2019-01-03 | Aurora Innovative Technology LLC | Multi-laser gas leakage detector |
| CN210665483U (en) * | 2019-05-31 | 2020-06-02 | 杭州国翌科技有限公司 | Gas leakage point positioning device |
-
2019
- 2019-05-31 CN CN201910472186.3A patent/CN110108651A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01213540A (en) * | 1988-02-22 | 1989-08-28 | Idemitsu Kosan Co Ltd | Leakage detecting system |
| JPH05142088A (en) * | 1991-03-27 | 1993-06-08 | Osaka Gas Co Ltd | Gas leakage detector |
| JP2003294573A (en) * | 2002-03-29 | 2003-10-15 | Osaka Gas Co Ltd | Gas leakage position indicator |
| US20060238741A1 (en) * | 2003-03-07 | 2006-10-26 | Hideki Ninomiya | Gas leakage monitoring method and its system |
| CN101387568A (en) * | 2007-09-11 | 2009-03-18 | 上海电缆研究所 | Positioning method for leakage point of sulphur hexafluoride and positioning system thereof |
| CN101226098A (en) * | 2008-01-31 | 2008-07-23 | 杭州大有科技发展有限公司 | Sulfur hexafluoride laser imaging leakage detector |
| JP2014185914A (en) * | 2013-03-22 | 2014-10-02 | Mitsubishi Heavy Ind Ltd | Device and method for detecting fuel leakage |
| US20190003918A1 (en) * | 2017-06-30 | 2019-01-03 | Aurora Innovative Technology LLC | Multi-laser gas leakage detector |
| CN210665483U (en) * | 2019-05-31 | 2020-06-02 | 杭州国翌科技有限公司 | Gas leakage point positioning device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189975A (en) * | 2020-01-08 | 2020-05-22 | 北京航天试验技术研究所 | Gas leakage positioning device and positioning method |
| CN115711858A (en) * | 2022-10-14 | 2023-02-24 | 北京英特威视科技有限公司 | Smoke and gas detection method |
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