CN206617767U - A kind of ring adjustable optic fibre grating sensor for detecting hydraulic pipeline leakage - Google Patents
A kind of ring adjustable optic fibre grating sensor for detecting hydraulic pipeline leakage Download PDFInfo
- Publication number
- CN206617767U CN206617767U CN201720353218.4U CN201720353218U CN206617767U CN 206617767 U CN206617767 U CN 206617767U CN 201720353218 U CN201720353218 U CN 201720353218U CN 206617767 U CN206617767 U CN 206617767U
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- China
- Prior art keywords
- becket
- grating
- optical fiber
- optic fibre
- ring
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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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of ring adjustable optic fibre grating sensor for detecting hydraulic pipeline leakage, it is characterised in that：Including becket; grating region is provided with becket; grating is provided with grating region, the two ends of the grating are connected with optical fiber respectively, and the optical fiber circumferentially extends outside grating region respectively; and interior be respectively placed in optical fiber protective tube; the optical fiber protective tube is installed on becket, and the becket includes fixing end and free end, and adjusting means is provided with fixing end; free end is connected with adjusting means, and the size of metal ring diameter is adjusted by adjusting means.The utility model uses the ring becket of adjustable in length, can adapt to mainly for detection of the less hydraulic pipeline of diameter and within the specific limits the pipeline of different-diameter, with measurement sensitivity is high, Stability Analysis of Structures and the features such as strong adaptability.
Description
Technical field
The utility model is related to a kind of fiber-optic grating sensor, more particularly to a kind of ring for detecting hydraulic pipeline leakage can
Dim fiber grating sensor.
Background technology
The today developed rapidly in economy, pipeline transportation all plays more next in terms of national defence, economy, industry, production
More important effect.The yield and demand of oil and gas suddenly increase, and small, loss is low, transport because it takes up space for pipeline transportation
Throughput rate turns into greatly the preferred manner that oil gas is transported.The problem of safe operation of pipeline also turns into overriding concern.As pipeline is used
The growth of the time limit and the influence of external environment, pipeline also can gradually produce the defects such as burn into rupture.Once pipeline is let out
Leakage, not only can severe contamination environment, the lives and properties of people can also produce huge loss.
Compared with traditional electrical sensor.The sensor made using fiber grating, small volume high with sensitivity,
It is corrosion-resistant, anti-electromagnetic-radiation and the advantages of be easy to implement remote control.Simultaneously also overcome traditional electrical sensor stability it is poor,
Signal transmits short shortcoming.Multiple fiber grating composition Distributed Measurement Systems can be laid, multimetering is realized with a grating.
Bare optical fibers and bare optical gratings are easily snapped off in bending, therefore when being applied to measurement ring variable quantity in real process, often
Often need to carry out grating certain construction packages.And do not related to for the ring stickup sensor of hydraulic pipeline at present
Arrive, therefore the research that ring is pasted on the small pipeline of diameter to fiber grating is highly significant.
Utility model content
Technical problem to be solved in the utility model is can for not enough offer one kind that above-mentioned prior art is present
Adjust the ring adjustable optic fibre grating sensor of the detection hydraulic pipeline leakage of diameter.
The technical scheme that the utility model is used for：A kind of ring adjustable optic fibre grating for detecting hydraulic pipeline leakage is passed
Sensor, it is characterised in that：Including becket, grating region is provided with becket, grating, the two of the grating are provided with grating region
End be connected respectively with optical fiber, the optical fiber circumferentially extends outside grating region respectively, and it is interior respectively be placed in optical fiber protective tube, it is described
Optical fiber protective tube is installed on becket, and the becket includes fixing end and free end, and adjusting means is provided with fixing end, from
It is connected by end with adjusting means, the size of metal ring diameter is adjusted by adjusting means.
By above-mentioned technical proposal, the grating positioned at grating region by epoxide-resin glue is encapsulated in grating region, and the optical fiber is protected
Pillar is pasted onto on becket by epoxide-resin glue.
By above-mentioned technical proposal, the grating is located at the axial centre position of becket, the two ends of the optical fiber protective tube
Correspondence is pasted onto the both sides of grating region.
By above-mentioned technical proposal, the worm screw that the adjusting means includes fastening kit, set on fastening kit is described tight
Gu external member is connected with becket fixing end, the worm screw and the adjustment hole phase configuration set on becket free end.
By above-mentioned technical proposal, multiple adjustment holes, the inclination of the adjustment hole are evenly arranged with becket free end
Angle is consistent with worm thread angle of inclination.
By above-mentioned technical proposal, the screw thread of the metal screw is nested with adjustment hole, and rotating metallic screw rod is to realize metal
The change of ring diameter.
By above-mentioned technical proposal, the adjustable extent of the becket is 12-20 ㎜.
By above-mentioned technical proposal, the becket material is aluminum alloy material.
Having the beneficial effect that acquired by the utility model：
1st, the utility model uses the ring becket of adjustable in length, mainly for detection of the less hydraulic pipeline of diameter
And the pipeline of different-diameter can be adapted within the specific limits, with measurement sensitivity height, Stability Analysis of Structures and strong adaptability etc.
Feature；
2nd, on the one hand the utility model overcomes the inherent defect of traditional sensors, effectively improves bare optical fibers and bare optical gratings easy
Disconnected, on the other hand the shortcomings of easily being disturbed by extraneous factor avoid bare optical fibers and bare optical gratings and directly paste what application secondary can not be utilized
Problem；
3rd, the utility model is simple in construction, cheap, using convenient, can be widely applied for Aero-Space, petrochemical industry
Deng the leak detection of hydraulic pipeline under industrial condition.
Brief description of the drawings
Fig. 1 is structure chart of the present utility model.
Fig. 2 is state diagram when the utility model becket deploys.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, 2, a kind of ring adjustable optic fibre grating sensing for detecting hydraulic pipeline leakage is present embodiments provided
Device, including becket 3, grating region 5 is provided with becket, has grating by epoxy encapsulation in grating region, grating is located at
At the axial centre position of becket, optical fiber is connected at the two ends of grating, the two ends of the optical fiber circumferentially extend respectively
Go out outside grating region, and it is interior respectively be placed in the fine protection pipe 4 of rubber light, the two ends of the optical fiber protective tube 4 pass through asphalt mixtures modified by epoxy resin respectively
Fat is pasted onto the both sides of grating region 5.The becket 3 includes fixing end and free end, is provided with adjusting means in fixing end, freely
End is connected with adjusting means, and the size of metal ring diameter is adjusted by adjusting means.
In the present embodiment, the worm screw 1 that the adjusting means includes fastening kit 2, set on fastening kit, the fastening
External member 2 is connected with becket fixing end, and multiple adjustment holes 6 are evenly arranged with the free end of becket 3, the adjustment hole 6
Angle of inclination is consistent with worm thread angle of inclination, it is possible to be nested, by rotary screw 1 to realize the diameter of becket 3
Change, wherein, the adjustable extent of the becket 3 is 12-20 ㎜.
In the present embodiment, the becket material is aluminum alloy material, can carry out bending and stretch processing.
The utility model manufacturing process is as follows：First there is provided strip metal ring 3, used again after processing is stretched to becket 3
Sandpapering surface makes its smooth；Secondly, centered on grating region 5, cut respectively at the 20cm of its left and right sides, in grating
Area 5 installs optical fiber, then unfolds it as stretch processing fiber grating, and epoxide-resin glue is applied simultaneously to the grating of grating region 5
Optical fiber is placed at the axial centre of becket 5, protected after the optical fiber for after adhesive curing, extending grating region to the left and right sides plus optical fiber
Pillar 4, and use epoxy resin glue sticking optical fiber protective tube and becket.Optical fiber fusion machine and solution are used to side optical fiber connector
Instrument detecting head is adjusted to complete connection.Whole grid region finally is covered using epoxide-resin glue, that is, completes the encapsulation of fiber grating.Will sensing
Device stands 24h, you can be applied on hydraulic pipeline.
Claims (8)
1. a kind of ring adjustable optic fibre grating sensor for detecting hydraulic pipeline leakage, it is characterised in that：Including becket, in gold
Belong to ring and be provided with grating region, grating is provided with grating region, the two ends of the grating are connected with optical fiber respectively, the optical fiber is all respectively
To extending outside grating region, and it is interior respectively be placed in optical fiber protective tube, the optical fiber protective tube is installed on becket, the gold
Belonging to ring includes fixing end and free end, and adjusting means is provided with fixing end, and free end is connected with adjusting means, passes through adjusting means
Adjust the size of metal ring diameter.
2. adjustable optic fibre grating sensor according to claim 1, it is characterised in that：Grating positioned at grating region passes through ring
Oxygen resin glue is encapsulated in grating region, and the optical fiber protective tube is pasted onto on becket by epoxide-resin glue.
3. adjustable optic fibre grating sensor according to claim 2, it is characterised in that：The grating is located at the axle of becket
To center, the two ends correspondence of the optical fiber protective tube is pasted onto the both sides of grating region.
4. adjustable optic fibre grating sensor according to claim 1 or 2, it is characterised in that：The adjusting means includes tight
Gu external member, the worm screw set on fastening kit, the fastening kit and becket fixing end are connected, the worm screw with metal
The adjustment hole phase configuration set on ring free end.
5. adjustable optic fibre grating sensor according to claim 4, it is characterised in that：Uniformly set on becket free end
Multiple adjustment holes are equipped with, the angle of inclination of the adjustment hole is consistent with worm thread angle of inclination.
6. adjustable optic fibre grating sensor according to claim 1 or 2, it is characterised in that：The screw thread of the metal screw
Nested with adjustment hole, rotating metallic screw rod is to realize the change of metal ring diameter.
7. adjustable optic fibre grating sensor according to claim 1 or 2, it is characterised in that：The adjustable model of the becket
Enclose for 12-20 ㎜.
8. adjustable optic fibre grating sensor according to claim 1 or 2, it is characterised in that：The becket material is aluminium
Alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720353218.4U CN206617767U (en) | 2017-04-06 | 2017-04-06 | A kind of ring adjustable optic fibre grating sensor for detecting hydraulic pipeline leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720353218.4U CN206617767U (en) | 2017-04-06 | 2017-04-06 | A kind of ring adjustable optic fibre grating sensor for detecting hydraulic pipeline leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206617767U true CN206617767U (en) | 2017-11-07 |
Family
ID=60235562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720353218.4U Expired - Fee Related CN206617767U (en) | 2017-04-06 | 2017-04-06 | A kind of ring adjustable optic fibre grating sensor for detecting hydraulic pipeline leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206617767U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443430A (en) * | 2018-10-31 | 2019-03-08 | 武汉理工大学 | Fluid pressure line real time on-line monitoring and fault diagnosis system based on optical fiber grating sensing |
-
2017
- 2017-04-06 CN CN201720353218.4U patent/CN206617767U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443430A (en) * | 2018-10-31 | 2019-03-08 | 武汉理工大学 | Fluid pressure line real time on-line monitoring and fault diagnosis system based on optical fiber grating sensing |
| CN109443430B (en) * | 2018-10-31 | 2020-10-16 | 武汉理工大学 | Hydraulic pipeline real-time online monitoring and fault diagnosis system based on fiber bragg grating sensing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171107 Termination date: 20180406 |