CN114063189A - Oil leak detection optical cable and oil leak detection device - Google Patents
Oil leak detection optical cable and oil leak detection device Download PDFInfo
- Publication number
- CN114063189A CN114063189A CN202111438878.XA CN202111438878A CN114063189A CN 114063189 A CN114063189 A CN 114063189A CN 202111438878 A CN202111438878 A CN 202111438878A CN 114063189 A CN114063189 A CN 114063189A
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- China
- Prior art keywords
- optical cable
- oil leakage
- leakage detection
- light
- oil
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 55
- 238000001514 detection method Methods 0.000 title claims abstract description 50
- 239000000835 fiber Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 239000012780 transparent material Substances 0.000 claims description 2
- 239000005445 natural material Substances 0.000 claims 1
- 239000013307 optical fiber Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers
- G01V8/24—Detecting, e.g. by using light barriers using multiple transmitters or receivers using optical fibres
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses an oil leakage detection optical cable and an oil leakage detection device, wherein the oil leakage detection optical cable comprises an optical cable outer sleeve, an outer sleeve fixing layer and light-conducting fibers; the oil leakage detection device comprises a light source emitting device, an oil leakage detection cable and an optical receiver. The working principle of the oil leakage detection optical cable and the oil leakage detection device is as follows: the light source emits light signals on one side of the optical cable, and the other side of the optical cable or the optical cable is provided with the light receiver; when oil contacts the outer sleeve of the optical cable, the outer sleeve absorbs the oil to be dissolved or becomes transparent, light in the light conduction fiber is transmitted at the position, the signal of the light receiver is weakened, and the position of oil leakage can be judged according to the weakened strength of the signal. The device has the advantages of high stability, accurate detection and simple device composition.
Description
Technical Field
The invention relates to the technical field of oil leakage detection, in particular to an oil leakage detection optical cable and an oil leakage detection device.
Background
Energy has been an important substance in relation to the steady development of human society, and petroleum products have been very important substances in the field of energy. The petroleum and petroleum product transportation pipeline is long, the storage equipment occupies a large area, the storage area is good in tightness, and the problems of environmental pollution and energy waste can be caused because the leakage is not easy to detect in the transportation or use process. Therefore, oil leakage detection techniques are particularly important.
The existing typical oil leakage detection cable comprises an oil absorption expansion main body, an optical fiber and a limiting ring, wherein when an oil leakage event occurs, the oil absorption expansion main body of the cable can be subjected to oil absorption expansion, and under the limiting effect of the limiting ring, the expansion main body extrudes the internal optical fiber, so that the optical fiber is refracted or scattered, an optical signal inside the optical fiber is changed, and an oil leakage area is detected. However, the existing oil leakage detection cable is relatively complex in structure, high in preparation difficulty and easy to increase detection cost, and the intensity change of an optical signal caused by refraction and scattering is relatively small, so that a false alarm phenomenon is easily caused.
Disclosure of Invention
It is an object of the present invention to provide a cable for oil leakage detection and an oil leakage detection apparatus, which solve at least one of the above problems.
The purpose of the invention is realized as follows:
in order to achieve the above object, the present invention provides an oil leakage detection optical cable, which includes an optical cable jacket, an inner light-conducting fiber, and a jacket fixing layer.
When an oil leakage event occurs, the oil dissolves the outer sleeve of the optical cable or makes the outer sleeve transparent, and light in the optical fiber is transmitted at the oil leakage position, so that the light intensity is obviously reduced, and the occurrence of the oil leakage event and even the oil leakage position can be judged according to the intensity of the optical signal.
Further, the optical cable jacket is made of an oil-absorbing and dissolving or oil-absorbing transparent material, the jacket material includes but is not limited to polymers, inorganic non-metallic materials and natural materials, and the jacket can be one layer or multiple layers.
Further, the jacket fixing layer is made of a filamentous material, including but not limited to metal wires and plastic wires. The outer cover fixing layer may be absent or may be one or more layers.
Further, the light conducting fibers in the optical cable have the capability of conducting light, and the number of the light conducting fibers is one or more.
The invention also provides an oil leakage detection device which comprises the oil leakage detection optical cable, the light source transmitter connected with the optical cable and the optical receiver connected with the optical cable.
Further, the light source emitter connected with the optical cable is one or more.
Further, the optical receiver connected with the optical cable is one or more.
Furthermore, the oil leakage detection device absorbs oil and dissolves or becomes transparent by using the outer jacket material of the optical cable, so that light in the optical conduction fiber is transmitted from the oil leakage position, the signal of the optical receiver is weakened, and the occurrence and the position of an oil leakage event are judged.
The invention has the beneficial effects that:
the invention provides an oil leakage detection optical cable and an oil leakage detection device. Compared with the prior art, the optical cable is simple in composition, low in cost, simple and convenient to prepare, and the signal response intensity of the detection device is strong.
Drawings
In order to more clearly describe the embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below.
FIG. 1 is a schematic structural view of an embodiment of an oil leak detection cable according to the present invention;
FIG. 2 is a cross-sectional view of an oil leak detection cable;
FIG. 3 is a schematic structural diagram of an embodiment of an oil leakage detection apparatus according to the present invention;
description of the reference numerals
1-optical cable jacket
2-light conducting fiber
3-coat fixing layer
4-light source emitter
5-optical receiver
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will further describe the present invention with reference to the accompanying drawings.
As shown in fig. 1 to 2, in one embodiment, the present invention provides an oil leakage detection optical cable and an oil leakage detection apparatus, the oil leakage detection optical cable being a main component of the oil leakage detection apparatus. The oil leakage detection optical cable comprises an optical cable outer sleeve 1 which absorbs oil to be dissolved or becomes transparent, light conduction fibers 2 inside the optical cable and an outer sleeve fixing layer 3 outside the optical cable outer sleeve.
Specifically, the optical cable jacket 1 can be determined according to the use environment and the cost requirement, and is beneficial to selecting a polypropylene nano fiber film jacket with the diameter of 5 mm; the material and the number of the light-transmitting fibers 2 can be determined according to the requirement of detection precision, for example, 4 polymethacrylate fibers with 2mm can be selected; the jacket fixing layer 3 may be determined according to the use condition of the material, for example, a nylon wire having a diameter of 1mm may be selected and wound around the outer layer of the cable jacket at intervals of 1 mm.
In addition to the oil leak detection cable described above, the present invention also provides an oil leak detection apparatus including an oil leak detection optical cable, including the oil leak detection optical cable described above, a light source transmitter 4 connected to the light-transmitting fiber 2, and a light receiver 5 connected to the light-transmitting fiber 2. The light source emitter emits a light source with fixed intensity, the optical signal value of the optical receiver is a fixed value in a normal state, and when an oil leakage event occurs, the optical signal of the optical receiver is obviously reduced, so that the occurrence of the oil leakage event and the oil leakage position are judged.
The above description is only exemplary of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims (8)
1. An oil leakage detection optical cable is characterized by comprising an optical cable outer sleeve (1), internal light conduction fibers (2) and an outer sleeve fixing layer (3).
2. The oil leakage detection optical cable according to claim 1, wherein the optical cable jacket (1) is an oil-absorbing and dissolving or oil-absorbing transparent material, the jacket material includes but is not limited to polymer, inorganic non-metallic material, natural material, and the jacket can be one or more layers.
3. Oil leakage detection optical cable according to claim 1, characterized in that the jacket fixing layer (3) is a filamentous material including but not limited to metal wires, plastic wires, metal mesh, nylon mesh. The outer cover fixing layer may be absent or may be one or more layers.
4. An oil-leakage detection optical cable according to claim 1, wherein the light-conducting fibers (2) in the optical cable have the ability to conduct light, and the number of the light-conducting fibers is one or more.
5. An oil leakage detection apparatus, comprising an oil leakage detection cable according to any one of claims 1-4, a light source transmitter (4) connected to the cable, and a light receiver (5) connected to the cable.
6. Oil leakage detection device according to claim 5, characterized in that the light source emitter (4) connected to the optical cable is one or more.
7. Oil leakage detection device according to claim 5, characterized in that the optical receiver (5) connected to the optical cable is one or more.
8. The oil leakage detection device according to claim 5, characterized in that the device uses the material of the cable jacket (1) to absorb oil, dissolve or become transparent, so that the light in the light-conducting fiber (2) is transmitted from the oil leakage position, and the signal (5) of the light receiver is weakened, thereby determining the occurrence of the oil leakage event and the oil leakage position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111438878.XA CN114063189A (en) | 2021-11-25 | 2021-11-25 | Oil leak detection optical cable and oil leak detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111438878.XA CN114063189A (en) | 2021-11-25 | 2021-11-25 | Oil leak detection optical cable and oil leak detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114063189A true CN114063189A (en) | 2022-02-18 |
Family
ID=80277366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111438878.XA Pending CN114063189A (en) | 2021-11-25 | 2021-11-25 | Oil leak detection optical cable and oil leak detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114063189A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4386269A (en) * | 1979-11-15 | 1983-05-31 | Avon Rubber Company Limited | Method and device for detecting leaks from pipelines |
| CN108760162A (en) * | 2018-05-23 | 2018-11-06 | 北京目黑科技有限公司 | leakage detection device and method |
| CN108799845A (en) * | 2018-07-12 | 2018-11-13 | 北京目黑科技有限公司 | A kind of leakage detection device and its Oil Leakage Detecting cable and detection method |
-
2021
- 2021-11-25 CN CN202111438878.XA patent/CN114063189A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4386269A (en) * | 1979-11-15 | 1983-05-31 | Avon Rubber Company Limited | Method and device for detecting leaks from pipelines |
| CN108760162A (en) * | 2018-05-23 | 2018-11-06 | 北京目黑科技有限公司 | leakage detection device and method |
| CN108799845A (en) * | 2018-07-12 | 2018-11-13 | 北京目黑科技有限公司 | A kind of leakage detection device and its Oil Leakage Detecting cable and detection method |
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Application publication date: 20220218 |