CN205118673U - Device of monitoring and location direct -burried heating power pipeline leakage point - Google Patents
Device of monitoring and location direct -burried heating power pipeline leakage point Download PDFInfo
- Publication number
- CN205118673U CN205118673U CN201520837409.9U CN201520837409U CN205118673U CN 205118673 U CN205118673 U CN 205118673U CN 201520837409 U CN201520837409 U CN 201520837409U CN 205118673 U CN205118673 U CN 205118673U
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- China
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- insulation layer
- sensor fibre
- leakage point
- heat insulation
- distribution pipeline
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Abstract
The utility model discloses a device of monitoring and location direct -burried heating power pipeline leakage point, heating power pipeline are equipped with the heat insulation layer outward, and the device is equipped with the computer, the computer pass through the optical fiber sensing module and connect sensing fiber, sensing fiber follow extend between heating power pipeline and the heat insulation layer. The utility model discloses monitoring and the device of location leakage point can be automatically distributing type monitoring direct -burried heating power pipeline whether take place to leak to can judge the leakage point in the roughly position of pipeline cross section, when the pipeline take place to leak, this device can pinpoint and in time send the alarm to the leakage point and report with the leakage point location. And leakage point locating speed is fast, the precision is high, and generator tube says and leak the back that alright fault localization point shortens heating power pipeline repair duration in several minutes. And a plurality of leakage points can be fixed a position simultaneously to this device, realize monitoring of direct -burried heating power pipeline distributing type and location.
Description
Technical field
The utility model relates to monitoring and positioning device, particularly relates to the device of a kind of automatic distributed monitoring and location direct-burried heat distribution pipeline leakage point.
Background technique
Along with the raising of living standards of the people, the Thermal facilities such as heating installation have become the indispensability of passing the winter, and Cemented filling has become a kind of convenient economic heating power means of transportation.But because pipe-line equipment is aging and artificial destruction often can cause heat distribution pipeline to leak, seriously affect heating.Therefore, leakage monitoring is carried out to pipeline and location is very important.
At present heat distribution pipeline is studied accordingly also fewer, when pipeline occurs to leak, utilize personnel to utilize the mode such as infrared detection technique, manual observation to find leakage point along the line to pipeline more.Mostly the temperature sensor monitors heat distribution pipeline that utilizes occurred is also point type detection, and need multiple prober, detectyion range is inaccurate, and cost is high, difficult in maintenance.
Model utility content
Whether technical problem to be solved in the utility model realizes one can monitor pipeline and leak, when pipeline occurs to leak, pipe leakage point position can be determined quickly and accurately, and the device of leakage point in the general orientation of cross-section of pipeline can be judged
To achieve these goals, the technical solution adopted in the utility model is: the device of a kind of monitoring and location direct-burried heat distribution pipeline leakage point, heat insulation layer is provided with outside heat distribution pipeline, this device is provided with computer, described computer connects sensor fibre by fiber sensing module, and described sensor fibre extends along between described heat distribution pipeline and heat insulation layer.
Described sensor fibre is provided with at least three, and is set in qually spaced between heat distribution pipeline and heat insulation layer.
Described heat insulation layer is provided with the first sensor fibre be connected with fiber sensing module, and the first described sensor fibre is arranged along heat insulation layer, and has spacing with heat insulation layer.
Three are provided with along the sensor fibre extended between described heat distribution pipeline and heat insulation layer, be respectively the second sensor fibre the 3rd sensor fibre and the 4th sensor fibre, the sensor fibre cross section described in three is that inverted equilateral triangle is arranged between heat distribution pipeline and heat insulation layer.
Described heat insulation layer is provided with a point of release at interval of a segment distance, and the described point of release is positioned at lower surface or the oblique upper of heat insulation layer.
The first described sensor fibre is positioned at directly over heat insulation layer, and is 8-12cm with heat insulation layer spacing.
Whether the device of the utility model monitoring and locating leaks point can automatically leak in distributed monitoring directly buried heat distribution pipeline road, and the general orientation of leakage point at cross-section of pipeline can be judged, when pipeline occurs to leak, this device accurately can be located leakage point and be given the alarm in time and leak point positioning report.And leak point positioning speed is fast, precision is high, occur after pipe leakage, just can fault point in several minutes, shortening heat hydraulic piping repair time.And this device can locate multiple leakage point, realizes directly buried heat distribution pipeline road distributed monitoring and location simultaneously.
Accompanying drawing explanation
Mark in the content expressed every width accompanying drawing in the utility model specification below and figure is briefly described:
Fig. 1 is this apparatus structure schematic diagram;
Fig. 2 is the structural drawing of cross section after this device heat distribution pipeline laying optical fiber and heat insulation layer;
Fig. 3 is this apparatus control method flow chart;
Mark in above-mentioned figure is: 1, computer; 2, fiber sensing module; 3, the first sensor fibre; 4, the second sensor fibre; 5, the 3rd sensor fibre; 6, the 4th sensor fibre; 7, heat distribution pipeline; 8, heat insulation layer.
Embodiment
The device of monitoring and location direct-burried heat distribution pipeline 7 leakage point comprises computer 1, fiber sensing module 2 and sensor fibre, and its Computer 1 and sensor fibre are peripheral unit, and fiber sensing module 2 is enclosed in a casing.
Computer 1, adopts technical grade computer 1, controls fiber sensing module 2 work by communication interface, and the data reading fiber sensing module 2 output carry out storing and analyzing, and draw work report and show; Fiber sensing module 2, adopt based on the backward scattered distributed fiber temperature sensing module of Raman, the temperature information along the line to heat distribution pipeline 7 carries out distributed measurement.Sensor fibre, adopts the SM-28e+ general single mode fiber of Corning Incorporated, for measuring heat distribution pipeline 7 distributed temperature information along the line.
Computer 1 connecting fiber sensing module 2 input end transmits work order, and periodically can send work order, realize this device automatically to monitor and positioning work, the output terminal of fiber sensing module 2 connects computer 1 by communication interface, and the data after gathering are transferred to computer 1.Monitoring and positioning device are when working beginning, fiber sensing module 2 is to sensor fibre Transmitted pulse optical signal, and receive the distributed Raman backscattering optical signal of heat distribution pipeline 7 optical fiber along the line, noise reduction is carried out to the optical signal received, light-splitting processing obtains stokes light and anti-Stokes light, gather after amplifying, be transferred to computer 1 and store and analyze, utilize the optical time domain reflection technology based on Raman scattering to draw the temperature distribution information that heat distribution pipeline 7 is along the line.
As shown in Figure 1, be provided with heat insulation layer 8 outside heat distribution pipeline 7, be provided with sensor fibre along between heat distribution pipeline 7 and heat insulation layer 8, in order to can locating leaks position accurately, preferred setting at least three sensor fibres, sensor fibre three is set in qually spaced between heat distribution pipeline 7 and heat insulation layer 8.But for the larger heat distribution pipeline 7 of caliber, the sensor fibre being greater than three can be set, improve the accuracy of location.At heat distribution pipeline 7 outer surface along wire routing first sensor fibre 3, for measures ambient temperature, can distinguish that whether heat insulation layer 8 occurs leaks in addition.First sensor fibre 3 needs to have certain spacing with heat insulation layer 8, spacing is 8-12cm, be preferably 10cm, position is positioned at directly over heat insulation layer 8, because the first sensor fibre 3 had both needed the ambient temperature can measuring heat distribution pipeline 7, also need to improve accuracy, therefore excessive or too small spacing etc. may impact measurement parameter, therefore controlling at about 10cm is the distance of best results, directly over position better can obtain outside temperature regime, because great majority have interfering thermal source come from earth's surface.
Preferred version: for most of heat distribution pipeline 7, three sensor fibres are set, both can well control cost, also leakage point position can be obtained accurately, be respectively the second sensor fibre 4, the 3rd sensor fibre 5 and the 4th sensor fibre 6, as shown in Figure 2, three sensor fibre cross sections are that inverted equilateral triangle is arranged between heat distribution pipeline 7 and heat insulation layer 8, because the hot water leaked generally can stay the bottom in heat distribution pipeline 7 and heat insulation layer 8 gap, inverted structure can make every root sensor fibre measure the temperature parameter of leakage as far as possible accurately.
Heat insulation layer 8 opens an osculum every a segment distance, as the point of release, the point of release is positioned at lower surface or the oblique upper of heat insulation layer 8, be preferably placed at the oblique upper becoming 60 ° with horizontal line, when preventing heat distribution pipeline 7 from leaking, pressure crosses holocaust heat insulation layer 8, can not impact the first sensor fibre 3 simultaneously.
As shown in Figure 3, when positioning work starts, computer 1 sends work order, fiber sensing module 2 launches a pulsed optical signals to the first sensor fibre 3, second sensor fibre 4, the 3rd sensor fibre 5 and the 4th sensor fibre 6, and receive the distributed Raman scattered light signal returned in heat distribution pipeline 7 optical fiber along the line, then noise reduction, light splitting is carried out, obtain stokes light and anti-Stokes light, gather after amplifying, be transferred to computer 1 to store and analyze, utilize the optical time domain reflection technology based on Raman scattering to draw the temperature distribution information that heat distribution pipeline 7 is along the line.
When directly buried heat distribution pipeline road 7 occurs to leak, leakage point environment temperature raises, far above the temperature of non-leakage point.Whether the threshold temperature that environment set one is suitable residing for heat distribution pipeline 7, through the analysis of computer 1, exist leakage point, if exist, then gives the alarm and provide the positioning reporting of pipe leakage point.
As shown in Figure 3, the device of a kind of monitoring based on Raman scattering optical time domain reflection technology and location direct-burried heat distribution pipeline 7 leakage point, its workflow is:
Computer 1 sends work order, and fiber sensing module 2 is started working;
Fiber sensing module 2 is launched a laser pulse and is entered the first sensor fibre 3, second sensor fibre 4, the 3rd sensor fibre 5 and the 4th sensor fibre 6, receive the Raman scattering optical signal returned in heat distribution pipeline 7 optical fiber along the line, then noise reduction, light splitting is carried out, obtain stokes light and anti-Stokes light, gather after amplifying, be transferred to computer 1;
Computer 1 is analyzed the heat distribution pipeline 7 collected digital signal along the line, utilizes the optical time domain reflection technology principle based on Raman scattering to draw the temperature distribution of heat distribution pipeline 7 each point along the line;
The threshold temperature that environment set one is suitable residing for heat distribution pipeline 7, judges whether that the temperature that sensor fibre detects exceedes this threshold temperature, if do not have, then continues image data, carry out next round judgement;
If the temperature having sensor fibre to detect exceedes threshold temperature, then judge whether the temperature that sensor fibre detects exceedes threshold temperature, if not, then locate this point, and the temperature the second sensor fibre 4, the 3rd sensor fibre 5 and the 4th sensor fibre 6 detected sorts, and on cross-section of pipeline, leakage point is between the optical fiber of first two of temperature, and mark heat insulation layer 8 does not leak, computer 1 provides leak point positioning report;
If the temperature that the first sensor fibre 3 detects exceedes threshold temperature, then judge whether temperature that the second sensor fibre 4, the 3rd sensor fibre 5 and the 4th sensor fibre 6 detect has and exceed threshold temperature.If no, then continue image data, carry out next round analysis.If have, then locate this point, and the temperature that the second sensor fibre 4, the 3rd sensor fibre 5 and the 4th sensor fibre 6 are detected sequence, on cross-section of pipeline, leakage point is between the optical fiber of first two of temperature, and mark heat insulation layer 8 leaks, and computer 1 provides leak point positioning report.
By reference to the accompanying drawings the utility model is exemplarily described above; obvious the utility model specific implementation is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present utility model is conceived and technological scheme is carried out; or design of the present utility model and technological scheme directly applied to other occasion, all within protection domain of the present utility model without to improve.
Claims (6)
1. the device of a monitoring and location direct-burried heat distribution pipeline leakage point, heat insulation layer is provided with outside heat distribution pipeline, it is characterized in that: this device is provided with computer, described computer connects sensor fibre by fiber sensing module, and described sensor fibre extends along between described heat distribution pipeline and heat insulation layer.
2. the device of monitoring according to claim 1 and location direct-burried heat distribution pipeline leakage point, is characterized in that: described sensor fibre is provided with at least three, and is set in qually spaced between heat distribution pipeline and heat insulation layer.
3. the device of monitoring according to claim 1 and 2 and location direct-burried heat distribution pipeline leakage point, it is characterized in that: described heat insulation layer is provided with the first sensor fibre be connected with fiber sensing module, the first described sensor fibre is arranged along heat insulation layer, and has spacing with heat insulation layer.
4. the device of monitoring according to claim 3 and location direct-burried heat distribution pipeline leakage point, it is characterized in that: be provided with three along the sensor fibre extended between described heat distribution pipeline and heat insulation layer, be respectively the second sensor fibre the 3rd sensor fibre and the 4th sensor fibre, the sensor fibre cross section described in three is that inverted equilateral triangle is arranged between heat distribution pipeline and heat insulation layer.
5. the device of monitoring according to claim 4 and location direct-burried heat distribution pipeline leakage point, it is characterized in that: described heat insulation layer is provided with a point of release at interval of a segment distance, the described point of release is positioned at lower surface or the oblique upper of heat insulation layer.
6. the device of monitoring according to claim 5 and location direct-burried heat distribution pipeline leakage point, is characterized in that: the first described sensor fibre is positioned at directly over heat insulation layer, and is 8-12cm with heat insulation layer spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520837409.9U CN205118673U (en) | 2015-10-26 | 2015-10-26 | Device of monitoring and location direct -burried heating power pipeline leakage point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520837409.9U CN205118673U (en) | 2015-10-26 | 2015-10-26 | Device of monitoring and location direct -burried heating power pipeline leakage point |
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| Publication Number | Publication Date |
|---|---|
| CN205118673U true CN205118673U (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520837409.9U Expired - Fee Related CN205118673U (en) | 2015-10-26 | 2015-10-26 | Device of monitoring and location direct -burried heating power pipeline leakage point |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221936A (en) * | 2015-10-26 | 2016-01-06 | 安徽师范大学 | The device of a kind of monitoring and location direct-burried heat distribution pipeline leakage point and controlling method thereof |
| CN107990153A (en) * | 2017-12-25 | 2018-05-04 | 北京市热力工程设计有限责任公司 | A kind of heat distribution pipeline with optical cable |
-
2015
- 2015-10-26 CN CN201520837409.9U patent/CN205118673U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221936A (en) * | 2015-10-26 | 2016-01-06 | 安徽师范大学 | The device of a kind of monitoring and location direct-burried heat distribution pipeline leakage point and controlling method thereof |
| CN105221936B (en) * | 2015-10-26 | 2018-09-14 | 安徽师范大学 | A kind of device and its control method of monitoring and positioning directly buried heat distribution pipeline road leakage point |
| CN107990153A (en) * | 2017-12-25 | 2018-05-04 | 北京市热力工程设计有限责任公司 | A kind of heat distribution pipeline with optical cable |
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| 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: 20160330 Termination date: 20161026 |
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| CF01 | Termination of patent right due to non-payment of annual fee |