CN103852220B - A kind of oil truck leakage of oil prior-warning device based on optical fiber FBG - Google Patents
A kind of oil truck leakage of oil prior-warning device based on optical fiber FBG Download PDFInfo
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- CN103852220B CN103852220B CN201410057177.5A CN201410057177A CN103852220B CN 103852220 B CN103852220 B CN 103852220B CN 201410057177 A CN201410057177 A CN 201410057177A CN 103852220 B CN103852220 B CN 103852220B
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- optical fiber
- coupler
- oil
- fiber fbg
- fbg
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 57
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 12
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
nullA kind of oil truck leakage of oil prior-warning device based on optical fiber FBG，Including flexible pipe，Liquid internal is inserted in one end of flexible pipe，The other end extends to outside liquid level，Optical fiber FBG it is attached with respectively on the inwall of liquid level outer flexible tube and on the inwall of liquid internal flexible pipe，Two optical fiber FBG respectively with the first coupler、Second coupler electrical connection，First coupler、Second coupler electrically connects with photoelectric detector respectively，Photoelectric detector electrically connects with signal processing module，Signal processing module electrically connects with alarm，Signal processing module analysis the wave length shift variable quantity caused when obtaining two optical fiber FBG due to leakage of oil，If its wave length shift difference changes，Then can determine whether that leakage of oil event occurs，Start alarm immediately to report to the police，It is capable of monitoring in real time and the warning of the deathtraps such as oil truck，Eliminate safe hidden trouble，There is accuracy high、Real-time feature.
Description
Technical field
The present invention relates to optical fiber FBG technical field, particularly to one based on optical fiber
The oil truck leakage of oil prior-warning device of FBG.
Background technology
For oil truck, cause the reason of leakage of oil to be likely due to equipment outmoded, or occur
Collision, it is also possible to the reasons such as the mouth of pipe is loosening cause leakage of oil, leakage of oil point to be also not easy to determine.And
Leakage of oil early warning to oil truck, the most all uses temperature monitoring or pressure change detection, is all
Need measurement data accurately, then data be analyzed, thus be made whether the judgement of leakage of oil,
Equipment needed thereby is the most, and process is more complicated.Additionally from fiber grating FBG (Fiber Bragg
Grating) seeing in sensor developmental research, optical fiber FBG is in oil truck leakage of oil early warning
In the most studied and utilize, especially need not accurately measure changing value, it is only necessary to know that have
Unchanged achieve that early warning.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, it is an object of the invention to propose a kind of based on
The oil truck leakage of oil prior-warning device of optical fiber FBG, it is possible to realize the deathtraps such as oil truck
In real time monitoring with report to the police, judge whether accurately and in time leakage of oil event, eliminate safety
Hidden danger, has the advantages that accuracy is high, real-time.
To achieve these goals, the technical solution used in the present invention is:
A kind of oil truck leakage of oil prior-warning device based on optical fiber FBG, including flexible pipe 3,
Liquid internal is inserted in one end of flexible pipe 3, and the other end extends to outside liquid level, liquid level outer flexible tube 3
It is attached with optical fiber FBG 1 on inwall, the inwall of liquid internal flexible pipe 3 is attached with
Optical fiber FBG 22, optical fiber FBG 1, optical fiber FBG 22 points
Not electrically connecting with first coupler the 4, second coupler 5, the first coupler 4, second couples
Device 5 electrically connects with photoelectric detector 6 respectively, photoelectric detector 6 and signal processing module 7 electricity
Connecting, signal processing module 7 electrically connects with alarm 8.
A diameter of 6mm of described flexible pipe 3, a length of 200mm.
Described flexible pipe 3 material is liquefaction special (purpose) rubber flexible pipe corrosion-resistant, high voltage bearing.
Described optical fiber FBG 1 exists with the standoff distance of optical fiber FBG 22
In the range of 0-2cm.
Described photoelectric detector 6 quantity is 2.
Described first coupler the 4, second coupler 5 is respectively by optical fiber and the 3rd coupler 9
It is joined directly together.
Described 3rd coupler 9 electrically connects with wideband light source 10.
Described first coupler the 4, second coupler the 5, the 3rd coupler 9 is 1x2 coupling
Device.
Owing to the present invention uses optical fiber FBG, owing to optical fiber FBG is minimum, can
Two optical fiber FBG are set apart from close, and think two optical fiber FBG due to
The change of environment temperature, pressure and other parameters causes wave length shift identical, in actual applications, is not required to
Process the relation calculated between photo eye variable signal and actual leakage of oil amount, only need to lead to
Cross signal processing module analysis and obtain the parameter of optical fiber FBG and have unchanged,
Determine whether leakage of oil event to occur, it is achieved related personnel withdraws in time or quickly processes
Leakage of oil event, therefore without expensive optical fiber FBG demodulated equipment, can greatly reduce
Equipment cost, it is possible to realize monitoring in real time and the warning of the deathtraps such as oil truck, timely, accurate
Really judge whether leakage of oil event, eliminate safe hidden trouble, there is accuracy height, real-time
Strong feature.
Accompanying drawing explanation
Fig. 1 is the structural principle block diagram of prior-warning device of the present invention, and black arrow represents incident light,
Dotted arrow represents reflection light.
Fig. 2 is the structural representation of prior-warning device optical fiber FBG of the present invention.
Fig. 3 is prior-warning device signal processing flow figure of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described in further detail.
See accompanying drawing 1, a kind of oil truck leakage of oil prior-warning device based on optical fiber FBG,
Including flexible pipe 3, liquid internal is inserted in one end of flexible pipe 3, and the other end extends to outside liquid level, liquid
Optical fiber FBG 1 it is attached with on the inwall of face outer flexible tube 3, liquid internal flexible pipe 3
Optical fiber FBG 22, optical fiber FBG 1, optical fiber FBG it is attached with on inwall
Sensor 22 electrically connects with first coupler the 4, second coupler 5 respectively, the first coupler
4, the second coupler 5 electrically connects with photoelectric detector 6 respectively, photoelectric detector 6 and signal
Processing module 7 electrically connects, and signal processing module 7 electrically connects with alarm 8.Flexible pipe 3 straight
Footpath is 6mm, a length of 200mm, and material is liquefaction special (purpose) rubber flexible pipe corrosion-resistant, high voltage bearing.
The standoff distance of optical fiber FBG 1 and optical fiber FBG 22 is in 0-2cm scope
In, in order to ensureing that the temperature that two optical fiber FBG detect is identical, Photoelectric Detection
Device 6 quantity is 2.First coupler the 4, second coupler 5 is respectively by optical fiber and the 3rd
Coupler 9 is joined directly together.3rd coupler 9 electrically connects with wideband light source 10.First coupling
Device the 4, second coupler the 5, the 3rd coupler 9 is 1x2 coupler.
Seeing accompanying drawing 1,2,3, the operation principle of the present invention is:
Flexible pipe 3 inserts liquid internal, and regulation makes optical fiber FBG 22 submerge liquid,
And optical fiber FBG 1 exposes liquid level, pass by photoelectric detector 6 detection fiber FBG
Sensor 1, records because of environment temperature, pressure, and vibration etc. changes optical fiber FBG sensing
The impact of device 1, optical fiber FBG 22 existing due to ambient environment temperature, pressure,
The wave length shift that it is caused by the Parameters variation such as vibration, when having again because there is leakage of oil, liquid surface
The impact that it is produced by tension force.Owing to two optical fiber FBG are apart from close, can approximate and recognize
Ambient parameter change suffered by optical fiber FBG 1 and optical fiber FBG 22 causes
Wave length shift identical.Wavelength with photoelectric detector 6 detection fiber FBG 1
Scope, also by the wave-length coverage of photoelectric detector 6 detection fiber FBG 22.
After signal processing module 7 is started working, transfer two optical fiber FBG respectively different
The wavelength change in moment, causes when analyzing and obtain two optical fiber FBG due to leakage of oil
Wave length shift variable quantity, it is judged that compare optical fiber FBG 1 and optical fiber FBG sensing
Device 22 wave length shift difference has unchanged, if be judged as NO after Ji Suaning, does not the most occur
Leakage of oil event, returns previous step and proceeds, if be judged as YES after Ji Suaning, then understands
Road leakage of oil event occurs, and starts alarm 8 immediately and reports to the police.Need not process meter
Calculate the relation between photo eye 6 variable signal and actual leakage of oil amount.
Claims (6)
1. an oil truck leakage of oil prior-warning device based on optical fiber FBG, including flexible pipe
(3), it is characterised in that liquid internal is inserted in one end of flexible pipe (3), and the other end extends to
Outside liquid level, the inwall of liquid level outer flexible tube (3) is attached with optical fiber FBG one (1),
Optical fiber FBG two (2), described light it is attached with on the inwall of liquid internal flexible pipe (3)
The standoff distance of fine FBG one (1) and optical fiber FBG two (2) is at 0-2cm
In the range of, optical fiber FBG one (1), optical fiber FBG two (2) are respectively with
One coupler (4), the second coupler (5) electrically connect, the first coupler (4), the second coupling
Clutch (5) is joined directly together by optical fiber and the 3rd coupler (9) respectively, the first coupler (4),
Second coupler (5) electrically connects with photoelectric detector (6) respectively, photoelectric detector (6)
Electrically connect with signal processing module (7), signal processing module (7) and alarm (8) electricity
Connect.
A kind of oil truck based on optical fiber FBG the most according to claim 1 leaks
Oil prior-warning device, it is characterised in that a diameter of 6mm of described flexible pipe (3), a length of 200mm.
A kind of oil truck based on optical fiber FBG the most according to claim 1 leaks
Oil prior-warning device, it is characterised in that described flexible pipe (3) material is corrosion-resistant, high voltage bearing
Liquefaction special (purpose) rubber flexible pipe.
A kind of oil truck based on optical fiber FBG the most according to claim 1 leaks
Oil prior-warning device, it is characterised in that described photoelectric detector (6) quantity is 2.
A kind of oil truck based on optical fiber FBG the most according to claim 1 leaks
Oil prior-warning device, it is characterised in that described 3rd coupler (9) and wideband light source (10)
Electrical connection.
A kind of oil tank based on optical fiber FBG
Car leakage of oil prior-warning device, it is characterised in that described first coupler (4), the second coupler (5),
3rd coupler (9) is 1x2 coupler.
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103852220A CN103852220A (en) | 2014-06-11 |
| CN103852220B true CN103852220B (en) | 2016-09-07 |
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| CN201410057177.5A Expired - Fee Related 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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN203908732U (en) * | 2014-02-20 | 2014-10-29 | 陕西科技大学 | Early warning apparatus for oil leakage of oil tank truck |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK177172B1 (en) * | 2010-11-05 | 2012-04-16 | Nkt Cables Group As | An integrity monitoring system and a method of monitoring integrity of a stationary structure |
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2014
- 2014-02-20 CN CN201410057177.5A patent/CN103852220B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101968161A (en) * | 2010-11-10 | 2011-02-09 | 于晋龙 | Distributed optical fiber polarization sensor based automatic early warning system of intelligent pipeline |
| CN203908732U (en) * | 2014-02-20 | 2014-10-29 | 陕西科技大学 | Early warning apparatus for oil leakage of oil tank truck |
Non-Patent Citations (2)
| Title |
|---|
| 同时测量多参数FBG传感器的应用与研究;王晓霞等;《电子元件与材料》;20070630;第26卷(第6期);第58-60、68页 * |
| 基于FBG传感器皮革弹性测量设计与实现;王晓霞等;《计算机测量与控制》;20111231;第19卷(第5期);第1047-1049页，尤其参见第1048页第2节测量***设计与实现 * |
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| CN103852220A (en) | 2014-06-11 |
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Granted publication date: 20160907 |