CN206920039U - It is easy to the arranging device of optical fiber Raman temperature sensor detection pipeline - Google Patents

It is easy to the arranging device of optical fiber Raman temperature sensor detection pipeline Download PDF

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Publication number
CN206920039U
CN206920039U CN201720637131.XU CN201720637131U CN206920039U CN 206920039 U CN206920039 U CN 206920039U CN 201720637131 U CN201720637131 U CN 201720637131U CN 206920039 U CN206920039 U CN 206920039U
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China
Prior art keywords
optical fiber
temperature sensor
detection
detection pipeline
conversion zone
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Expired - Fee Related
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CN201720637131.XU
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Chinese (zh)
Inventor
宋俊俊
王强
范昕伟
谷小红
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China Jiliang University
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China Jiliang University
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Priority to CN201720637131.XU priority Critical patent/CN206920039U/en
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Abstract

It is easy to the arranging device of optical fiber Raman temperature sensor detection pipeline, it collects the unconspicuous problem of signal for solving distributed optical fiber temperature sensor, it is characterised in that:It includes detection pipeline (P), conversion layer (1), separation layer (2), detection fiber (3), conversion zone (4), after the liquid in detection pipeline (P) has liquid leakage to come out in detection position, liquid, which runs into conversion zone (4), can cause to react the temperature field around (4) release amount of heat and modulation detection optical fiber (3), now optical fiber Raman temperature sensor can collect the explicitly delta data of pipe leakage according to this change, and this development for optical fiber Raman temperature sensor and application are significant.

Description

It is easy to the arranging device of optical fiber Raman temperature sensor detection pipeline
Technical field
The invention belongs to fluid pipeline leak detection field, more particularly to one kind to be easy to optical fiber Raman temperature sensor to detect The arranging device of pipeline.
Background technology
At present, as the development of optical fiber sensing technology, the development of fiber Raman temperature sensor technology can also be applied to fire Calamity detection etc. technical field, the technology for temperature change detect it is more obvious, in recent years pipe leakage event happen occasionally to People's life brings very big inconvenience, the especially leakage in the junction of water pipe or some easily leakage rapid wear harms, therefore right The detection and monitoring of pipe leakage also have been to be concerned by more and more people, but optical fiber sensing technology is for the leak detection of water pipe Can not directly it apply, temperature change is not notable enough when its one of the main reasons is due to pipe leakage, and easily by extraneous rain The factors such as water are influenceed, so if can have a kind of device, either method can be changed the signal of pipe leakage or temperature Signal amplifies, and so for detecting that pipe leakage creates condition by optical fiber Raman temperature sensor, this is for water pipe Leak detection and on-line monitoring are significant, will necessarily also promote the application of fibre optic temperature sensor.
The content of the invention
It is an object of the present invention to:In order to realize above-mentioned " leak detection and on-line monitoring of water pipe ", the invention provides one Kind is easy to the arranging device of optical fiber Raman temperature sensor detection pipeline.
To realize the purpose of the present invention, it is achieved using following technical scheme:
It collects the unconspicuous problem of signal for solving distributed optical fiber temperature sensor, and it includes detection pipeline, The conversion layer being tightly arranged on the outside of the detection pipeline, and it is arranged on the separation layer outside the conversion layer;
Described conversion layer is provided with conversion zone in subaerial side, and the inner side of the conversion zone is (i.e. close to the one of pipeline Side) it is made of water-tight material, the outside of the conversion zone is made of the material of infiltration.
And cause the bottom of the separation layer apart from the distance of above-mentioned at least 1 centimetre of conversion zone bottom.
Further, described conversion layer is made using special media, and the special media runs into liquid inside detection pipeline Amount of heat can be distributed during body so as to cause surrounding environment to be brought rapidly up.
Further, described separation layer is made of antiseep, resistant material, and the bottom of the separation layer is tank Shape.
The beneficial effects of the invention are as follows:
1st, the bottom for tightly arranging the conversion layer conversion layer outside detection pipeline due to the present invention is provided with conversion zone, and this is anti- Layer is answered to be made using special media, the special media can distribute amount of heat so as to draw when running into detection pipeline internal liquid Play surrounding environment to be brought rapidly up, conversion layer release amount of heat so may result in when detecting the liquid leakage in pipeline, Cause the temperature field around detection fiber that significant changes occur, because the change meeting modulation optical fiber in temperature field is in the strong of Raman scattering Degree, changes into obvious temperature change signal, this just provides convenience for detection by liquid leakage signal.
2nd, described conversion layer of the invention is provided with conversion zone, the inner side of the conversion zone in subaerial side when setting It is made of water-tight material, the outside of the conversion zone is made of seepage material, and the outside of the conversion zone isolates with above-mentioned The bottom of layer sets at least 1 centimetre of distance, and described detection fiber is arranged on the inner side for being close to above-mentioned conversion zone;
Because the conversion zone set on conversion layer is positioned at side near the ground, so no matter water pipe which side leak, by Duct bottom can be all flow in gravity principle further to react with conversion zone;So only it need to arrange that a detection fiber can be with standard Really detect leakage problem;
Because the inner side of the conversion zone is water-tight, even if waterpipe wall causes have the globule to be attached to its surface due to environment reason Also the temperature of conversion zone will not be caused to change, the situation for reducing erroneous judgement occurs;
Because the outside of the conversion zone and the bottom of above-mentioned separation layer set at least 1 centimetre of distance, so only work as Water surface elevation is caused just to cause that the medium of conversion zone meets water when exceeding 1 centimetre of the separation layer bottom when water pipe leaks anti- Temperature change should occur, improve the accuracy of detection.
Brief description of the drawings
Fig. 1 is that the present invention lays schematic diagram.
1st, conversion layer;2nd, separation layer;3rd, detection fiber;4th, conversion zone;P, pipeline is detected.
Embodiment
Below according to accompanying drawing, the present invention will be described in detail:
As shown in figure 1, method and device of the invention is done specifically by detecting exemplified by liquid is running water in pipeline 1 It is bright:The present invention includes detection pipeline P, the conversion layer 1 being tightly arranged on the outside of detection pipeline P, and is arranged on outside the conversion layer 1 The separation layer 2 in portion;
Described conversion layer 1 is provided with conversion zone 4 in subaerial side, and the inner side of the conversion zone 4 is (i.e. close to pipeline Side) it is made of water-tight material, the outside of the conversion zone 4 is made of the material of infiltration.
Described conversion layer 1 is made using containing equally distributed calcia material medium, and inner side is using water-tight Plastics, outside are made of permeable membrane material.
Described separation layer 2 uses waterproof, anti-corrosion, the polyurethane material of insulation is made and water is in the bottom of the separation layer 2 Channel-shaped.
Its method it is as follows:
When detection pipeline P does not have water leakage, then detecting the temperature field outside pipeline P will not change, then detects institute Obtained temperature does not have significant change, even if summer water wall has the globule, is not leaked because the inner side of above-mentioned conversion zone 4 uses Water material is made, and the globule can't be caused to be reacted with conversion zone 4;
When detection pipeline P has water leakage, because the bottom of separation layer 2 is tank shape, the water leakage in pipeline P is detected Afterwards, when the depth of the water in the bottom of separation layer 2 make it that the water surface touches the outside of conversion zone 4 so that water and the change of conversion zone 4 Learn material to react, discharge heat, modulated the temperature field around detection fiber 3 so that optical fiber Raman temperature sensor The temperature detected is varied widely, and more accurate leakage information is can obtain by post-processing.
The leakage that the present invention is applied to water pipe for fibre optic temperature sensor creates condition, and greatly reduces test leakage mistake The probability of survey, the development for fiber Raman sensor are significant.

Claims (2)

1. being easy to the arranging device of optical fiber Raman temperature sensor detection pipeline, it includes detection pipeline (P), it is characterised in that:
The conversion layer (1) being tightly arranged on the outside of the detection pipeline (P), and it is arranged on the outside separation layer of the conversion layer (1) (2);
Described conversion layer (1) is provided with conversion zone (4) in subaerial side;
Distance of the bottom of described separation layer (2) apart from least 1 centimetre of above-mentioned conversion zone (4) bottom.
2. the arranging device according to claim 1 for being easy to optical fiber Raman temperature sensor detection pipeline, it is characterised in that: Described separation layer (2) bottom is tank shape.
CN201720637131.XU 2017-05-25 2017-05-25 It is easy to the arranging device of optical fiber Raman temperature sensor detection pipeline Expired - Fee Related CN206920039U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720637131.XU CN206920039U (en) 2017-05-25 2017-05-25 It is easy to the arranging device of optical fiber Raman temperature sensor detection pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720637131.XU CN206920039U (en) 2017-05-25 2017-05-25 It is easy to the arranging device of optical fiber Raman temperature sensor detection pipeline

Publications (1)

Publication Number Publication Date
CN206920039U true CN206920039U (en) 2018-01-23

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110529744A (en) * 2019-07-30 2019-12-03 江阴爱科森博顿聚合体有限公司 A kind of dedicated optical cable nylon sheath wire material of pipe leakage detection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110529744A (en) * 2019-07-30 2019-12-03 江阴爱科森博顿聚合体有限公司 A kind of dedicated optical cable nylon sheath wire material of pipe leakage detection

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Granted publication date: 20180123

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