CN203908732U - Early warning apparatus for oil leakage of oil tank truck - Google Patents
Early warning apparatus for oil leakage of oil tank truck Download PDFInfo
- Publication number
- CN203908732U CN203908732U CN201420074493.9U CN201420074493U CN203908732U CN 203908732 U CN203908732 U CN 203908732U CN 201420074493 U CN201420074493 U CN 201420074493U CN 203908732 U CN203908732 U CN 203908732U
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- coupling mechanism
- optical fiber
- leakage
- flexible pipe
- fiber fbg
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Abstract
An early warning apparatus for oil leakage of an oil tank truck comprises a flexible pipe. One end of the flexible pipe is inserted into a liquid, and the other end of the flexible pipe extends out of a liquid level. A first fiber FBG sensor and a second fiber FBG sensor are attached to the inner wall of the portion, outside the liquid, of the flexible pipe and to the inner wall of the portion, in the liquid, of the flexible pipe respectively. The two fiber FBG sensors are in electrically connection with a first coupler and a second coupler respectively. The first coupler and the second coupler are electrically connected with a photoelectric detector. The photoelectric detector is electrically connected with a signal processing module. The signal processing module is electrically connected with an alarm. The signal processing module analyzes and solves the wavelength drift variation of the two fiber FBG sensors during oil leakage. If the wavelength drift difference changes, it can be determined that oil leakage is occurring, and then the alarm is started immediately to alarm. Therefore, an oil tank truck and other hazardous areas can be monitored in real time, and alarming is emitted to eliminate safety hidden trouble. The early warning apparatus has the characteristics of high accuracy and high time effectiveness.
Description
Technical field
The utility model relates to optical fiber FBG sensor technical field, particularly a kind of tank wagon leakage of oil prior-warning device.
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 (Fiber Bragg Grating) 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 to have and unchangedly just can realize early warning.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the purpose of this utility model is to propose a kind of tank wagon leakage of oil prior-warning device, 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 adopted in the utility model is:
Tank wagon leakage of oil prior-warning device, 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 22, optical fiber FBG sensor 1, optical fiber FBG sensor 22 respectively with the first coupling mechanism 4, the second coupling mechanism 5 is electrically connected to, the first coupling mechanism 4, the second coupling mechanism 5 is electrically connected to photoelectric detector 6 respectively, photoelectric detector 6 is electrically connected to signal processing module 7, signal processing module 7 is electrically connected to 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 22 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 to 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 utility model 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.
Accompanying drawing explanation
Fig. 1 is the structural principle block diagram of the utility model prior-warning device, and black arrow represents incident light, and dotted arrow represents reflected light.
Fig. 2 is the structural representation of the utility model prior-warning device optical fiber FBG sensor.
Fig. 3 is the utility model prior-warning device signal processing flow figure.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to accompanying drawing 1, a kind of tank wagon leakage of oil prior-warning device, 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 22, optical fiber FBG sensor 1, optical fiber FBG sensor 22 respectively with the first coupling mechanism 4, the second coupling mechanism 5 is electrically connected to, the first coupling mechanism 4, the second coupling mechanism 5 is electrically connected to photoelectric detector 6 respectively, photoelectric detector 6 is electrically connected to signal processing module 7, signal processing module 7 is electrically connected to 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 22 within the scope of 0-2cm, and in order to guaranteeing 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 to 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 utility model is:
Flexible pipe 3 is inserted to liquid internal, adjusting makes optical fiber FBG sensor 22 liquid that submerges, and optical fiber FBG sensor 1 exposes liquid level, with photoelectric detector 6 detection fiber FBG sensors 1, record because of environment temperature, pressure, vibration etc. change the impact on optical fiber FBG sensor 1, and optical fiber FBG sensor 22 is existing because the parameters such as environment environment temperature, pressure, vibration change the wave length shift that it is caused, while having again because of generation leakage of oil, the impact of surface tension of liquid on its generation.Because two optical fiber FBG sensor distance are very near, can be similar to that to think that the suffered environmental parameter of optical fiber FBG sensor 1 and optical fiber FBG sensor 22 changes the wave length shift causing identical.By the wavelength coverage of photoelectric detector 6 detection fiber FBG sensors 1, also use the wavelength coverage of photoelectric detector 6 detection fiber FBG sensors 22.
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 obtaining two optical fiber FBG sensors due to leakage of oil, optical fiber FBG sensor 1 is compared in judgement and optical fiber FBG sensor 22 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. a tank wagon leakage of oil prior-warning device, 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 one (1), on the inwall of liquid internal flexible pipe (3), be attached with optical fiber FBG sensor two (2), optical fiber FBG sensor one (1), optical fiber FBG sensor two (2) respectively with the first coupling mechanism (4), the second coupling mechanism (5) is electrically connected to, the first coupling mechanism (4), the second coupling mechanism (5) is electrically connected to photoelectric detector (6) respectively, photoelectric detector (6) is electrically connected to signal processing module (7), signal processing module (7) is electrically connected to alarm (8).
2. a kind of tank wagon leakage of oil prior-warning device 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 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 according to claim 1, is characterized in that, the standoff distance of described optical fiber FBG sensor one (1) and optical fiber FBG sensor two (2) is within the scope of 0-2cm.
5. a kind of tank wagon leakage of oil prior-warning device 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 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 according to claim 6, is characterized in that, described the 3rd coupling mechanism (9) is electrically connected to wideband light source (10).
8. according to the 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 |
|---|---|---|---|
| CN201420074493.9U CN203908732U (en) | 2014-02-20 | 2014-02-20 | Early warning apparatus for oil leakage of oil tank truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420074493.9U CN203908732U (en) | 2014-02-20 | 2014-02-20 | Early warning apparatus for oil leakage of oil tank truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203908732U true CN203908732U (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420074493.9U Expired - Fee Related CN203908732U (en) | 2014-02-20 | 2014-02-20 | Early warning apparatus for oil leakage of oil tank truck |
Country Status (1)
| Country | Link |
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| CN (1) | CN203908732U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852220A (en) * | 2014-02-20 | 2014-06-11 | 陕西科技大学 | Oil tank truck oil leakage early-warning device based on FBG sensors |
| 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 |
-
2014
- 2014-02-20 CN CN201420074493.9U patent/CN203908732U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852220A (en) * | 2014-02-20 | 2014-06-11 | 陕西科技大学 | Oil tank truck oil leakage early-warning device based on FBG sensors |
| CN103852220B (en) * | 2014-02-20 | 2016-09-07 | 陕西科技大学 | A kind of oil truck leakage of oil prior-warning device based on optical fiber FBG |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20150220 |
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| EXPY | Termination of patent right or utility model |