CN103852220A - Oil tank truck oil leakage early-warning device based on FBG sensors - Google Patents
Oil tank truck oil leakage early-warning device based on FBG sensors Download PDFInfo
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- CN103852220A CN103852220A CN201410057177.5A CN201410057177A CN103852220A CN 103852220 A CN103852220 A CN 103852220A CN 201410057177 A CN201410057177 A CN 201410057177A CN 103852220 A CN103852220 A CN 103852220A
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- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 13
- 239000013307 optical fiber Substances 0.000 claims description 55
- 230000008878 coupling Effects 0.000 claims description 36
- 238000010168 coupling process Methods 0.000 claims description 36
- 238000005859 coupling reaction Methods 0.000 claims description 36
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 abstract 1
- 238000011897 real-time detection Methods 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 231100001261 hazardous Toxicity 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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Abstract
An oil tank truck oil leakage early-warning device based on FBG sensors comprises a hose, wherein one end of the hose is inserted into liquid, the other end of the hose extends outside the liquid level, the inner wall of the hose outside the liquid level and the inner wall of the hose inside the liquid are respectively provided with one FBG sensor in an attaching mode, the two FBG sensors are electrically connected with a first coupler and a second coupler respectively, the first coupler and the second coupler are respectively connected with an photoelectric detector respectively, the photoelectric detector is electrically connected with a signal processing module, the signal processing module is electrically connected with an alarm, wavelength shift change amount caused by oil leakage of the two FBG sensors is resolved through analysis of the signal processing module, if wavelength shift difference values change, it can be judged that oil leakage accidents are happening, the alarm is started immediately to give an alarm, real-time detection and alarming on an oil tank truck and other dangerous areas can be achieved, potential safety hazards are eliminated, and the device has the advantages of being high in accuracy and high in instantaneity.
Description
Technical field
The present invention relates to optical fiber FBG sensor technical field, particularly a kind of tank wagon leakage of oil prior-warning device based on optical fiber FBG sensor.
Background technology
Concerning tank wagon, the reason that causes leakage of oil may be because equipment is outmoded, or bumps, and may be also that the reasons such as the mouth of pipe becomes flexible cause leakage of oil, and leakage of oil point is also not easy to determine.And leakage of oil early warning to tank wagon generally all adopts temperature monitoring or pressure to change and detects, be all measurement data accurately, then to data analysis, thereby carry out the judgement of whether leakage of oil, equipment needed thereby is many, process more complicated.In addition from fiber grating FBG(FiberBraggGrating) sensor developmental research, optical fiber FBG sensor is also seldom studied and utilization in tank wagon leakage of oil early warning, especially do not need Measurement accuracy changing value, only need know there is the unchanged early warning that just can realize.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of the invention is to propose a kind of tank wagon leakage of oil prior-warning device based on optical fiber FBG sensor, can realize Real-Time Monitoring and the warning of the hazardous locations such as tank wagon, in time, judge whether exactly to occur leakage of oil event, eliminate safe hidden trouble, there is high, the real-time feature of accuracy.
To achieve these goals, the technical solution used in the present invention is:
A kind of tank wagon leakage of oil prior-warning device based on optical fiber FBG sensor, comprise flexible pipe 3, liquid internal is inserted in one end of flexible pipe 3, the other end extends to outside liquid level, on the inwall of liquid level outer flexible tube 3, be attached with optical fiber FBG sensor 1, on the inwall of liquid internal flexible pipe 3, be attached with optical fiber FBG sensor 2, optical fiber FBG sensor 1, optical fiber FBG sensor 2 respectively with the first coupling mechanism 4, the second coupling mechanism 5 is electrically connected, the first coupling mechanism 4, the second coupling mechanism 5 is electrically connected with photoelectric detector 6 respectively, photoelectric detector 6 is electrically connected with signal processing module 7, signal processing module 7 is electrically connected with alarm 8.
The diameter of described flexible pipe 3 is 6mm, and length is 200mm.
Described flexible pipe 3 materials are corrosion-resistant, high voltage bearing liquefaction special (purpose) rubber flexible pipe.
The standoff distance of described optical fiber FBG sensor 1 and optical fiber FBG sensor 2 is within the scope of 0-2cm.
Described photoelectric detector 6 quantity are 2.
Described the first coupling mechanism 4, the second coupling mechanism 5 are directly connected with the 3rd coupling mechanism 9 by optical fiber respectively.
Described the 3rd coupling mechanism 9 is electrically connected with wideband light source 10.
Described the first coupling mechanism 4, the second coupling mechanism 5, the 3rd coupling mechanism 9 are 1x2 coupling mechanism.
Because the present invention adopts optical fiber FBG sensor, because optical fiber FBG sensor is minimum, two optical fiber FBG sensor distance can be set very near, and think that two optical fiber FBG sensors are due to environment temperature, pressure and other parameters changes and causes that wave length shift is identical, in actual applications, do not need to process the relation of calculating between photo eye variable signal and actual leakage of oil amount, the parameter that only need analyze and obtain optical fiber FBG sensor by signal processing module has unchanged, can judge and have or not leakage of oil event to occur, realize that related personnel withdraws in time or fast processing leakage of oil event, therefore without expensive optical fiber FBG sensor demodulated equipment, can greatly reduce equipment cost, can realize Real-Time Monitoring and the warning of the hazardous locations such as tank wagon, in time, judge whether exactly to occur leakage of oil event, eliminate safe hidden trouble, there is accuracy high, real-time feature.
Brief description of the drawings
Fig. 1 is the structural principle block diagram of prior-warning device of the present invention, and black arrow represents incident light, and dotted arrow represents reflected light.
Fig. 2 is the structural representation of prior-warning device optical fiber FBG sensor of the present invention.
Fig. 3 is prior-warning device signal processing flow figure of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Referring to accompanying drawing 1, a kind of tank wagon leakage of oil prior-warning device based on optical fiber FBG sensor, comprise flexible pipe 3, liquid internal is inserted in one end of flexible pipe 3, the other end extends to outside liquid level, on the inwall of liquid level outer flexible tube 3, be attached with optical fiber FBG sensor 1, on the inwall of liquid internal flexible pipe 3, be attached with optical fiber FBG sensor 2, optical fiber FBG sensor 1, optical fiber FBG sensor 2 respectively with the first coupling mechanism 4, the second coupling mechanism 5 is electrically connected, the first coupling mechanism 4, the second coupling mechanism 5 is electrically connected with photoelectric detector 6 respectively, photoelectric detector 6 is electrically connected with signal processing module 7, signal processing module 7 is electrically connected with alarm 8.The diameter of flexible pipe 3 is 6mm, and length is 200mm, and material is corrosion-resistant, high voltage bearing liquefaction special (purpose) rubber flexible pipe.Optical fiber FBG sensor 1 is with the standoff distance of optical fiber FBG sensor 2 within the scope of 0-2cm, and in order to ensureing that the temperature that two optical fiber FBG sensors detect is identical, photoelectric detector 6 quantity are 2.The first coupling mechanism 4, the second coupling mechanism 5 are directly connected with the 3rd coupling mechanism 9 by optical fiber respectively.The 3rd coupling mechanism 9 is electrically connected with wideband light source 10.The first coupling mechanism 4, the second coupling mechanism 5, the 3rd coupling mechanism 9 are 1x2 coupling mechanism.
Referring to accompanying drawing 1,2,3, principle of work of the present invention is:
After signal processing module 7 is started working, transfer respectively not wavelength variations in the same time of two optical fiber FBG sensors, the wave length shift variable quantity causing while analyzing and obtain two optical fiber FBG sensors due to leakage of oil, optical fiber FBG sensor 1 is compared in judgement and optical fiber FBG sensor 2 wave length shift differences have unchanged, if be judged as NO after calculating, there is not leakage of oil event, returning to previous step proceeds, if be judged as YES after calculating, can know that leakage of oil event occurs, start immediately alarm 8 and report to the police.Do not need to process the relation of calculating between photo eye 6 variable signals and actual leakage of oil amount.
Claims (8)
1. the tank wagon leakage of oil prior-warning device based on optical fiber FBG sensor, comprise flexible pipe (3), it is characterized in that, liquid internal is inserted in one end of flexible pipe (3), the other end extends to outside liquid level, on the inwall of liquid level outer flexible tube (3), be attached with optical fiber FBG sensor (1), on the inwall of liquid internal flexible pipe (3), be attached with optical fiber FBG sensor (2), optical fiber FBG sensor (1), optical fiber FBG sensor (2) respectively with the first coupling mechanism (4), the second coupling mechanism (5) electrical connection, the first coupling mechanism (4), the second coupling mechanism (5) is electrically connected with photoelectric detector (6) respectively, photoelectric detector (6) is electrically connected with signal processing module (7), signal processing module (7) is electrically connected with alarm (8).
2. a kind of tank wagon leakage of oil prior-warning device based on optical fiber FBG sensor according to claim 1, is characterized in that, the diameter of described flexible pipe (3) is 6mm, and length is 200mm.
3. a kind of tank wagon leakage of oil prior-warning device based on optical fiber FBG sensor according to claim 1, is characterized in that, described flexible pipe (3) material is corrosion-resistant, high voltage bearing liquefaction special (purpose) rubber flexible pipe.
4. a kind of tank wagon leakage of oil prior-warning device based on optical fiber FBG sensor according to claim 1, is characterized in that, the standoff distance of described optical fiber FBG sensor (1) and optical fiber FBG sensor (2) is within the scope of 0-2cm.
5. a kind of tank wagon leakage of oil prior-warning device based on optical fiber FBG sensor according to claim 1, is characterized in that, described photoelectric detector (6) quantity is 2.
6. a kind of tank wagon leakage of oil prior-warning device based on optical fiber FBG sensor according to claim 1, is characterized in that, described the first coupling mechanism (4), the second coupling mechanism (5) are directly connected with the 3rd coupling mechanism (9) by optical fiber respectively.
7. a kind of tank wagon leakage of oil prior-warning device based on optical fiber FBG sensor according to claim 6, is characterized in that, described the 3rd coupling mechanism (9) is electrically connected with wideband light source (10).
8. according to a kind of tank wagon leakage of oil prior-warning device based on optical fiber FBG sensor described in claim 1,6 or 7, it is characterized in that, described the first coupling mechanism (4), the second coupling mechanism (5), the 3rd coupling mechanism (9) are 1x2 coupling mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410057177.5A CN103852220B (en) | 2014-02-20 | 2014-02-20 | A kind of oil truck leakage of oil prior-warning device based on optical fiber FBG |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410057177.5A CN103852220B (en) | 2014-02-20 | 2014-02-20 | A kind of oil truck leakage of oil prior-warning device based on optical fiber FBG |
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| CN103852220A true CN103852220A (en) | 2014-06-11 |
| CN103852220B CN103852220B (en) | 2016-09-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567996A (en) * | 2014-12-18 | 2015-04-29 | 陕西科技大学 | Temperature and pressure measurement image demodulation method and device based on FBG (Fiber Bragg Grating) sensor |
| CN105509968A (en) * | 2015-12-28 | 2016-04-20 | 中国航天空气动力技术研究院 | Fuel tank leakage early-warning device and fuel tank leakage early-warning method of gas-liquid heat pipe exchanger |
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| CN101907507A (en) * | 2010-06-28 | 2010-12-08 | 武汉理工大学 | Leakage monitoring and warning system of large fiber-grating liquid gas storage tank |
| CN101968161A (en) * | 2010-11-10 | 2011-02-09 | 于晋龙 | Distributed optical fiber polarization sensor based automatic early warning system of intelligent pipeline |
| GB2491082A (en) * | 2010-02-18 | 2012-11-21 | Us Seismic Systems Inc | Fiber optic pipeline monitoring systems and methods of using the same |
| JP2014502345A (en) * | 2010-11-05 | 2014-01-30 | エヌコーテー ケーブルス グループ アクティーゼルスカブ | Stationary structure integrity monitoring system and integrity monitoring method |
| CN203908732U (en) * | 2014-02-20 | 2014-10-29 | 陕西科技大学 | Early warning apparatus for oil leakage of oil tank truck |
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2014
- 2014-02-20 CN CN201410057177.5A patent/CN103852220B/en not_active Expired - Fee Related
Patent Citations (5)
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| GB2491082A (en) * | 2010-02-18 | 2012-11-21 | Us Seismic Systems Inc | Fiber optic pipeline monitoring systems and methods of using the same |
| CN101907507A (en) * | 2010-06-28 | 2010-12-08 | 武汉理工大学 | Leakage monitoring and warning system of large fiber-grating liquid gas storage tank |
| JP2014502345A (en) * | 2010-11-05 | 2014-01-30 | エヌコーテー ケーブルス グループ アクティーゼルスカブ | Stationary structure integrity monitoring system and integrity monitoring method |
| CN101968161A (en) * | 2010-11-10 | 2011-02-09 | 于晋龙 | Distributed optical fiber polarization sensor based automatic early warning system of intelligent pipeline |
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| 王晓霞等: "同时测量多参数FBG传感器的应用与研究", 《电子元件与材料》 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567996A (en) * | 2014-12-18 | 2015-04-29 | 陕西科技大学 | Temperature and pressure measurement image demodulation method and device based on FBG (Fiber Bragg Grating) sensor |
| CN104567996B (en) * | 2014-12-18 | 2016-09-07 | 陕西科技大学 | Temperature, pressure based on FBG measures image demodulation method and apparatus |
| CN105509968A (en) * | 2015-12-28 | 2016-04-20 | 中国航天空气动力技术研究院 | Fuel tank leakage early-warning device and fuel tank leakage early-warning method of gas-liquid heat pipe exchanger |
| CN105509968B (en) * | 2015-12-28 | 2017-10-13 | 中国航天空气动力技术研究院 | The fuel tank oil leak prior-warning device and method of gas-liquid heat exchange of heat pipe |
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| CN103852220B (en) | 2016-09-07 |
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