CN105221936A - The device of a kind of monitoring and location direct-burried heat distribution pipeline leakage point and controlling method thereof - Google Patents
The device of a kind of monitoring and location direct-burried heat distribution pipeline leakage point and controlling method thereof Download PDFInfo
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- CN105221936A CN105221936A CN201510705374.8A CN201510705374A CN105221936A CN 105221936 A CN105221936 A CN 105221936A CN 201510705374 A CN201510705374 A CN 201510705374A CN 105221936 A CN105221936 A CN 105221936A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims description 9
- 239000000835 fiber Substances 0.000 claims abstract description 90
- 238000009413 insulation Methods 0.000 claims abstract description 57
- 238000004904 shortening Methods 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 description 9
- 238000001069 Raman spectroscopy Methods 0.000 description 8
- 239000013307 optical fiber Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
Present invention is disclosed 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, and described computer connects sensor fibre by fiber sensing module, and described sensor fibre extends along between described heat distribution pipeline and heat insulation layer.Whether the device of monitoring of the present invention 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.
Description
Technical field
The present invention relates to monitoring and positioning device, particularly relate 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.
Summary of the invention
Whether technical problem to be solved by this invention realizes one can monitor pipeline and leak, and when pipeline occurs to leak, can determine pipe leakage point position quickly and accurately, and can judge the device of leakage point in the general orientation of cross-section of pipeline
To achieve these goals, the technical solution used in the present invention 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.
A controlling method for the device of monitoring and location direct-burried heat distribution pipeline leakage point, is characterized in that:
Step 1, start measure;
Step 2, gather temperature between heat distribution pipeline and heat insulation layer;
Step 3, the temperature of collection to be compared with predetermined threshold value;
If step 4 is less than threshold value, return step 2; If be greater than threshold value, judge to occur leaking;
Step 5, draw the fiber position point being greater than predetermined threshold value;
Step 6: export and leak report.
Described step 2 gathers the temperature outside heat insulation layer simultaneously;
Temperature outside the heat insulation layer of collection compares with predetermined threshold value by described step 3 simultaneously;
Described step 4 judges simultaneously, if the temperature outside heat insulation layer is greater than predetermined threshold value, then judges that leaking appears in heat insulation layer, if the temperature outside heat insulation layer is less than predetermined threshold value, then judges that leaking does not appear in heat insulation layer.
In described step 5, the temperature that collection heat distribution pipeline and heat insulation layer sensor fibre detect sorted, leakage point is between the sensor fibre of first two of temperature.
Whether the device of monitoring of the present invention 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 specification of the present invention 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.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technological scheme is carried out; or design of the present invention and technological scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (9)
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.
7. a controlling method for the device of the monitoring as described in claim 1-6 and location direct-burried heat distribution pipeline leakage point, is characterized in that:
Step 1, start measure;
Step 2, gather temperature between heat distribution pipeline and heat insulation layer;
Step 3, the temperature of collection to be compared with predetermined threshold value;
If step 4 is less than threshold value, return step 2; If be greater than threshold value, judge to occur leaking;
Step 5, draw the fiber position point being greater than predetermined threshold value;
Step 6: export and leak report.
8. controlling method according to claim 7, is characterized in that:
Described step 2 gathers the temperature outside heat insulation layer simultaneously;
Temperature outside the heat insulation layer of collection compares with predetermined threshold value by described step 3 simultaneously;
Described step 4 judges simultaneously, if the temperature outside heat insulation layer is greater than predetermined threshold value, then judges that leaking appears in heat insulation layer, if the temperature outside heat insulation layer is less than predetermined threshold value, then judges that leaking does not appear in heat insulation layer.
9. the controlling method according to claim 7 or 8, is characterized in that: in described step 5, and the temperature that collection heat distribution pipeline and heat insulation layer sensor fibre detect sorted, leakage point is between the sensor fibre of first two of temperature.
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| CN201510705374.8A CN105221936B (en) | 2015-10-26 | 2015-10-26 | A kind of device and its control method of monitoring and positioning directly buried heat distribution pipeline road leakage point |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107559600A (en) * | 2017-09-28 | 2018-01-09 | 江苏明江机械制造有限公司 | The online leak detection system of heat distribution pipeline optical fiber |
| CN107842714A (en) * | 2017-11-23 | 2018-03-27 | 中国石油化工股份有限公司 | The oil pipeline defect experimental system and method for a kind of temperature-measuring system of distributed fibers |
| CN111022833A (en) * | 2019-12-10 | 2020-04-17 | 张声振 | Direct-buried heat-insulation steam pipe with pipeline leakage monitoring function |
| CN111306450A (en) * | 2019-12-24 | 2020-06-19 | 陕西建工安装集团有限公司 | Buried thermal pipeline water leakage detection device and method |
| CN113052220A (en) * | 2021-03-16 | 2021-06-29 | 洛阳城市建设勘察设计院有限公司郑州工程分公司 | Sealing performance strength detection system, terminal and medium for direct-buried heat supply pipeline research |
| CN113944890A (en) * | 2021-10-22 | 2022-01-18 | 中国计量大学 | Pipeline detection method, equipment, device, use method and storage medium |
| CN116066764A (en) * | 2023-02-22 | 2023-05-05 | 河北君业科技股份有限公司 | Leakage detection and positioning method for thermal pipeline |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113052220A (en) * | 2021-03-16 | 2021-06-29 | 洛阳城市建设勘察设计院有限公司郑州工程分公司 | Sealing performance strength detection system, terminal and medium for direct-buried heat supply pipeline research |
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| CN116066764A (en) * | 2023-02-22 | 2023-05-05 | 河北君业科技股份有限公司 | Leakage detection and positioning method for thermal pipeline |
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Effective date of registration: 20230526 Address after: Room 210-1, Building 1, West Side, No. 13 Government Street, Taihu Town, Tongzhou District, Beijing, 101100 Patentee after: BEIJING XINCHENG GUOTAI ENERGY TECHNOLOGY CO.,LTD. Address before: 241000 Wuhu Road, Yijiang District, Anhui, Patentee before: ANHUI NORMAL University |
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Effective date of registration: 20231008 Address after: Room 210-1, Building 1, West Side, No. 13 Government Street, Taihu Town, Tongzhou District, Beijing, 101100 Patentee after: BEIJING XINCHENG GUOTAI ENERGY TECHNOLOGY CO.,LTD. Patentee after: BEIJING XINCHENG HEATING POWER Co.,Ltd. Address before: Room 210-1, Building 1, West Side, No. 13 Government Street, Taihu Town, Tongzhou District, Beijing, 101100 Patentee before: BEIJING XINCHENG GUOTAI ENERGY TECHNOLOGY CO.,LTD. |