CN107576420A - A kind of energy conduit leakage monitoring system - Google Patents
A kind of energy conduit leakage monitoring system Download PDFInfo
- Publication number
- CN107576420A CN107576420A CN201710853417.6A CN201710853417A CN107576420A CN 107576420 A CN107576420 A CN 107576420A CN 201710853417 A CN201710853417 A CN 201710853417A CN 107576420 A CN107576420 A CN 107576420A
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- heat
- insulation layer
- dts
- thermometrics
- Prior art date
- 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.)
- Pending
Links
Landscapes
- Examining Or Testing Airtightness (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a kind of energy conduit leakage monitoring system, including energy supply pipeline, temperature sensing optical fiber, GPZ, DTS thermometrics main frame and industrial computer, axial direction of the temperature sensing optical fiber along the energy supply pipeline is layed in the wall of the whole energy supply pipeline, and the temperature sensing optical fiber is connected by the GPZ with the DTS thermometrics main frame, the DTS thermometrics main frame is connected with industrial computer；The temperature sensing optical fiber gathers the temperature signal of each position of the whole energy supply pipeline, and the temperature signal collected is sent into the DTS thermometrics main frame；The DTS thermometrics main frame receives the temperature signal from the temperature sensing optical fiber, and monitors the profiling temperatures of the whole energy supply pipeline.The energy conduit leakage monitoring system of the present invention, " profile fiber thermometry " is applied and used in energy pipe network system, improves forecasting reliability, accuracy and stability；The use of temperature sensing optical fiber can not only detect leakage point, also collect the temperature real-time working condition of each point on whole piece pipeline.
Description
Technical field
The present invention relates to a kind of energy conduit leakage monitoring system.
Background technology
At present, the technology such as water source heat pump system, energy recovery and accumulation of energy of avoiding the peak hour is applied in some business districts, using centralization
District cooling and heating pattern, the freestanding central air conditioner system solution of traditional architecture is substituted, realize intensive, efficient and section
The purpose of energy.
Energy pipeline is directly embedded at 3~5 meters of below ground, is vulnerable to ground external force, soil body sedimentation, pipeline and welding matter
The factors such as amount, burn into temperature stress influence, and produce leakage.Its outer layer is wrapped up by waterproof and heat-insulation layer, causes searching leak source to be stranded
Difficulty, maintenance time are long, costly.Leak reduces the thermal insulation properties of pipe network heat-insulation layer, while is lost in the energy of pipe network system；Add
Fast corrosive pipeline；The soil erosion of initiation and road surface collapse, and produce the City Disasters such as traffic injury accident, energy supply interruption.
Distributed optical fiber temperature measurement technology is anti-based on Effect of Optical Fiber Raman Scatter (Raman Scattering) and optical time domain
E measurement technology (Optical Time-Domain Reflectometry) is penetrated to obtain spatial temperature distribution information.By in pipe
Road surface lay temperature sensing optical fiber, collection and analysis light pulse propagated in temperature sensing optical fiber caused by Raman back-reflection light when
Between and strength information obtain corresponding position and temperature information, after the temperature and positional information of every bit is learnt, so that it may with
To a temperature curve on whole optical fiber diverse location.For measurement distance up to 30 kilometers, space orientation reaches the quantity of rice
Level, can carry out continual automatic measurement, particularly suitable for needing multimetering application scenario a wide range of over long distances.
At present the technology in tunnel, oil depot, dangerous cargo warehouse, arsenal, industrial and mining enterprises workshop temperature detection
It is widely used with the cable of fire alarm warning system and electric power overload temperature monitoring.Distributed optical fiber temperature measurement technology there is no
The precedent put into practice in energy pipe network.
The content of the invention
The purpose of the present invention is the defects of overcoming prior art, there is provided a kind of energy conduit leakage monitoring system, will " distribution
Optical fiber temperature-measurement method " is applied to be used in energy pipe network system, improves forecasting reliability, accuracy and stability；Temperature-sensitive light
Fine use can not only detect leakage point, also collect the temperature real-time working condition of each point on whole piece pipeline, improve whereby daily
O＆M it is horizontal, reduce energy consumption.
Realizing the technical scheme of above-mentioned purpose is：A kind of energy conduit leakage monitoring system, including energy supply pipeline, temperature-sensitive light
Fibre, GPZ, DTS (optical fiber distributed type) thermometric main frames and industrial computer, wherein：
Axial direction of the temperature sensing optical fiber along the energy supply pipeline is layed in the wall of the whole energy supply pipeline, and described
Temperature sensing optical fiber is connected by the GPZ with the DTS thermometrics main frame, and the DTS thermometrics main frame is connected with industrial computer；
The temperature sensing optical fiber gathers the temperature signal of each position of the whole energy supply pipeline, and the temperature that will be collected
Signal is sent to the DTS thermometrics main frame；
The DTS thermometrics main frame receives the temperature signal from the temperature sensing optical fiber, and monitors the whole energy supply pipeline
Profiling temperatures；
The industrial computer is used for the temperature signal for remotely checking each position of the whole energy supply pipeline and whole institute
State the profiling temperatures of energy supply pipeline；
Alarming threshold value is provided with the DTS thermometrics main frame, when the temperature signal of the optional position of the energy supply pipeline surpasses
When crossing the alarming threshold value, the DTS thermometrics main frame sends alarm signal to the industrial computer；Display pipes are let out on the industrial computer
The particular location of leakage.
A kind of above-mentioned energy conduit leakage monitoring system, wherein, the temperature measurement accuracy of the temperature sensing optical fiber is 1 DEG C；It is minimum
Resolution ratio reaches 0.1 DEG C；Position resolution reaches 0.5 meter.
A kind of above-mentioned energy conduit leakage monitoring system, wherein, the energy supply pipeline includes inner tube, heat-insulation layer, outer tube
With two optical fiber protective tubes；
Said inner tube, heat-insulation layer and outer tube are sequentially coaxially set from the inside to the outside；
Two optical fiber protective tubes are described respectively along the outer surface for being axially disposed within the heat-insulation layer of the heat-insulation layer
Two symmetrical distributions of optical fiber protective tube；And on the cross section of the heat-insulation layer, wherein optical fiber protective tube
Between the center at the center and heat-insulation layer of line between center and the center of heat-insulation layer and another optical fiber protective tube
Sharp angle between line is less than 160 degree；
Piece temperature sensing optical fiber of equal grafting in the every optical fiber protective tube.
A kind of above-mentioned energy conduit leakage monitoring system, wherein, along the heat-insulation layer on the outer surface of the heat-insulation layer
Axial direction offer two through holes, two optical fiber protective tubes are interspersed in described two through holes correspondingly.
A kind of above-mentioned energy conduit leakage monitoring system, wherein, two optical fiber protective tubes and the heat-insulation layer one
Body cast molding.
A kind of above-mentioned energy conduit leakage monitoring system, wherein, the optical fiber protective tube uses zinc-plated protection pipe.
A kind of above-mentioned energy conduit leakage monitoring system, wherein, on the cross section of the heat-insulation layer, wherein described in one
The center and heat-insulation layer of line between the center of optical fiber protective tube and the center of heat-insulation layer and another optical fiber protective tube
Center between line between sharp angle be 120 degree.
The energy conduit leakage monitoring system of the present invention, has advantages below：
(1) " profile fiber thermometry " is applied and used in energy pipe network system, improve forecasting reliability, precisely
Property and stability；
(2) use of temperature sensing optical fiber can not only detect leakage point, and the temperature for also collecting each point on whole piece pipeline is real-time
Operating mode, daily O＆M level is improved whereby, reduces energy consumption；
(3) the energy conduit leakage monitoring system in business district is applied, demonstration and promotion prospect are boundless, meaning weight
Greatly.
Brief description of the drawings
Fig. 1 is the structural representation of the energy conduit leakage monitoring system of the present invention；
Fig. 2 is the structural representation (main view direction) of the energy supply pipeline of the energy conduit leakage monitoring system of the present invention；
Fig. 3 is the structural representation (rear apparent direction) of the energy supply pipeline of the energy conduit leakage monitoring system of the present invention；
Fig. 4 is the cross-sectional view of the energy supply pipeline of the energy conduit leakage monitoring system of the present invention.
Embodiment
In order that those skilled in the art are better understood when technical scheme, it is right below in conjunction with the accompanying drawings
Its embodiment is described in detail：
Referring to Fig. 1, highly preferred embodiment of the present invention, a kind of energy conduit leakage monitoring system, including energy supply pipeline 10,
Temperature sensing optical fiber 5, GPZ 6, DTS thermometrics main frame 7 and industrial computer 8.
Axial direction of the temperature sensing optical fiber 5 along energy supply pipeline 10 is layed in the wall of whole energy supply pipeline 10, and temperature sensing optical fiber 5 is logical
Cross GPZ 6 with DTS thermometrics main frame 7 to be connected, DTS thermometrics main frame 7 is connected with industrial computer 8.
Temperature sensing optical fiber 5 gathers the temperature signal of each position of whole energy supply pipeline 10, and the temperature signal that will be collected
It is sent to DTS thermometrics main frame 7；DTS thermometrics main frame 7 receives the temperature signal from temperature sensing optical fiber 5, and monitors whole energy supply pipeline
10 profiling temperatures；Industrial computer 8 is used for the temperature signal of each position for remotely checking whole energy supply pipeline 10 and whole
Root energizes the profiling temperatures of pipeline 10.Alarming threshold value is provided with DTS thermometrics main frame 7, when any position of energy supply pipeline 10
When the temperature signal put exceedes the alarming threshold value, DTS thermometrics main frame 7 sends alarm signal to industrial computer 8；Shown on industrial computer 8
The particular location of pipe leakage.
The temperature measurement accuracy of temperature sensing optical fiber 5 is 1 DEG C；Minimum resolution reaches 0.1 DEG C；Position resolution reaches 0.5 meter.
When energizing the generation leakage infiltration of pipeline 10, energizing the energy of the water in pipeline 10 can be transmitted on temperature sensing optical fiber,
We on industrial computer 8 can temperature and its change at leakage point with Real Time Observation, then measured by optical time domain reflection technology
To the physical location of leakage point, so as to realize pipe leakage judgement and positioning.
In monitoring, temperature sensing optical fiber 5 is little to the thermometric amplitude of variation and speed response of the seepage in underground of jacket exterior, but
To the amplitude of variation and speed height of the internal pressure energy leak for energizing pipeline 10.Main cause is that daily soil environment temperature is done
Disturb the interference characteristic for being different from pipe network energy leakage.Soil environment temperature is slowly varying, is consistent with weather information, and
And change while being global whole conduit region；And energy leakage is just the opposite.Temperature sensing optical fiber 5 can be attached to energy supply pipeline
The inner surface laying of the 10 outer tube i.e. outer surface laying of the heat-insulation layer of energy supply pipeline 10, it is similar to underground environment temperature；Hair
During raw outboard leak, underground water is to extravasate into heat-insulation layer by pipeline extroversion, and the temperature for just starting optical fiber has almost no change, after
Phase causes heat-insulation layer insulating capacity to decline, and the region triggered the temperature of optical fiber and occurred is slowly varying；And occur to let out inside pipeline
During leakage, situation is then on the contrary, be swift in response.
It can be wrapped up outside source capsule by waterproof and heat-barrier material, regardless of happening part and mode is leaked, water all can be because of weight
Liquid level rising again after power is acted on toward the movement below pipeline, initiation temperature field produces change, therefore temperature measuring optical cable is preferably in pipeline both sides
Middle lower section lay.
Fig. 2, Fig. 3 and Fig. 4 are referred to, energy supply pipeline 10 includes inner tube 1, heat-insulation layer 2, outer tube 3 and two optical fiber protective tubes
4.Inner tube 1, heat-insulation layer 2 and outer tube 3 are sequentially coaxially set from the inside to the outside；Two optical fiber protective tubes 4 are respectively along the axial direction of heat-insulation layer 2
The outer surface of heat-insulation layer 2 is arranged on, specifically, two through holes are offered along the axial direction of heat-insulation layer 3 on the outer surface of heat-insulation layer 2,
Two optical fiber protective tubes 4 are interspersed in two through holes correspondingly.And two optical fiber protective tubes 4 are cast with the one of heat-insulation layer 2
Shaping.Optical fiber protective tube 4 uses zinc-plated protection pipe.
Two 4 symmetrical distributions of optical fiber protective tube, and on the cross section of heat-insulation layer 2, wherein an optical fiber protective tube 4
Center and heat-insulation layer 2 center between line a and the center of another optical fiber protective tube 4 and the center of heat-insulation layer 2 between
Line b between sharp angle α be less than 160 degree；Intert a temperature sensing optical fiber 5 in every optical fiber protective tube 4.
Wrapped up outside traditional energy conduit by waterproof and heat-barrier material, regardless of leaking happening part and mode, water
Will be because Action of Gravity Field to be toward liquid level rising again after the movement below pipeline, initiation temperature field produces change, therefore temperature sensing optical fiber preferably exists
Lay the middle lower section of pipeline both sides.It is therefore preferable that the company between the center of wherein one optical fiber protective tube and the center of heat-insulation layer
The sharp angle α between line b between the center at the center and heat-insulation layer of line a and another optical fiber protective tube is 120 degree, so
Two temperature sensing optical fibers 5 are laid along the eight and four direction of the cross section of heat-insulation layer 2 correspondingly.
The energy conduit leakage monitoring system of the present invention, along the cross section of heat-insulation layer inside the heat-insulation layer of energy supply pipeline
Four and opening position eight respectively lay a zinc-plated protection pipe, then penetrate temperature sensing optical fiber along zinc-plated protection pipe,
Temperature sensing optical fiber is layed in inside whole energy supply pipeline.When in use, when leakage infiltration occurs for pipeline, the energy of the water in pipeline
It can be transmitted on temperature sensing optical fiber, our industrial computers on backstage can be with Real Time Observation at leakage point by DTS thermometrics main frame
Temperature and change, then measure by optical time domain reflection technology the physical location of leakage point, can realize pipe leakage judge and
Positioning.
The energy conduit leakage monitoring system of the present invention, temperature sensing optical fiber are both used as leakage point temperature acquisition sensor, simultaneously
And the optical cable of signal transmission.DTS thermometrics main frame can be monitored whole in real time by the temperature monitoring software in industrial computer
Root pipe temperature distribution situation, according to the alarming threshold value pre-set, sends alarm signal.
DTS thermometrics main frame 7 is the fire product of the Ministry of Public Security's exclusive " 3C certifications ", is used in numerous domestic engineering.
The energy conduit leakage monitoring system of the present invention, 1) realize long-range Centralizing inspection and management；2) realize that pipeline is let out
Leak monitoring, alarming and positioning；3) less rate of false alarm and the higher degree of accuracy, alert news many reference amounts cross validation is realized:4) can day
Normal service data collection, easy access, possesses preferable economy.
In summary, energy conduit leakage monitoring system of the invention, " profile fiber thermometry " is applied in energy source capsule
Used in net system, improve forecasting reliability, accuracy and stability；The use of temperature sensing optical fiber can not only detect leakage
Point, the temperature real-time working condition of each point on whole piece pipeline is also collected, improve daily O＆M level whereby, reduce energy consumption.
Those of ordinary skill in the art it should be appreciated that the embodiment of the above be intended merely to explanation the present invention,
And be not used as limitation of the invention, as long as in the spirit of the present invention, the change to embodiment described above
Change, modification will all fall in the range of claims of the present invention.
Claims (7)
- A kind of 1. energy conduit leakage monitoring system, it is characterised in that including energy supply pipeline, temperature sensing optical fiber, GPZ, DTS thermometrics main frame and industrial computer, wherein：Axial direction of the temperature sensing optical fiber along the energy supply pipeline is layed in the wall of the whole energy supply pipeline, and the temperature-sensitive Optical fiber is connected by the GPZ with the DTS thermometrics main frame, and the DTS thermometrics main frame is connected with industrial computer；The temperature sensing optical fiber gathers the temperature signal of each position of the whole energy supply pipeline, and the temperature signal that will be collected It is sent to the DTS thermometrics main frame；The DTS thermometrics main frame receives the temperature signal from the temperature sensing optical fiber, and monitors the temperature of the whole energy supply pipeline Spend distribution situation；The industrial computer is used for the temperature signal for remotely checking each position of the whole energy supply pipeline and the whole confession The profiling temperatures of energy pipeline；Alarming threshold value is provided with the DTS thermometrics main frame, is somebody's turn to do when the temperature signal of the optional position of the energy supply pipeline exceedes During alarming threshold value, the DTS thermometrics main frame sends alarm signal to the industrial computer；Display pipes leak on the industrial computer Particular location.
- A kind of 2. energy conduit leakage monitoring system according to claim 1, it is characterised in that the survey of the temperature sensing optical fiber Warm precision is 1 DEG C；Minimum resolution reaches 0.1 DEG C；Position resolution reaches 0.5 meter.
- 3. a kind of energy conduit leakage monitoring system according to claim 1, it is characterised in that the energy supply pipeline includes Inner tube, heat-insulation layer, outer tube and two optical fiber protective tubes；Said inner tube, heat-insulation layer and outer tube are sequentially coaxially set from the inside to the outside；Two optical fiber protective tubes are respectively along the outer surface for being axially disposed within the heat-insulation layer of the heat-insulation layer, described two The symmetrical distribution of optical fiber protective tube；And on the cross section of the heat-insulation layer, wherein the center of an optical fiber protective tube Line between the center at the center and heat-insulation layer of line between the center of heat-insulation layer and another optical fiber protective tube Between sharp angle be less than 160 degree；Piece temperature sensing optical fiber of equal grafting in the every optical fiber protective tube.
- A kind of 4. energy conduit leakage monitoring system according to claim 3, it is characterised in that the appearance of the heat-insulation layer Two through holes are offered along the axial direction of the heat-insulation layer on face, two optical fiber protective tubes are interspersed in described two correspondingly In individual through hole.
- A kind of 5. energy conduit leakage monitoring system according to claim 4, it is characterised in that two fiber optic protections Pipe and the heat-insulation layer one cast molding.
- 6. a kind of energy conduit leakage monitoring system according to claim 3, it is characterised in that the optical fiber protective tube is adopted With zinc-plated protection pipe.
- A kind of 7. energy conduit leakage monitoring system according to claim 3, it is characterised in that the heat-insulation layer it is transversal On face, wherein line and another fiber optic protection between the center of optical fiber protective tube and the center of heat-insulation layer The sharp angle between line between the center of pipe and the center of heat-insulation layer is 120 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710853417.6A CN107576420A (en) | 2017-09-20 | 2017-09-20 | A kind of energy conduit leakage monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710853417.6A CN107576420A (en) | 2017-09-20 | 2017-09-20 | A kind of energy conduit leakage monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107576420A true CN107576420A (en) | 2018-01-12 |
Family
ID=61036233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710853417.6A Pending CN107576420A (en) | 2017-09-20 | 2017-09-20 | A kind of energy conduit leakage monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107576420A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108955938A (en) * | 2018-07-02 | 2018-12-07 | 青岛汇安谷科技发展有限公司 | One kind being used for room temperature feed-line distributed fiber temperature measuring device and temp measuring method |
| CN109186717A (en) * | 2018-11-07 | 2019-01-11 | 沈阳工业大学 | A kind of continuous contactless seedless liquid level measuring system |
| CN109540300A (en) * | 2018-12-21 | 2019-03-29 | 青岛汇安谷科技发展有限公司 | The online Subarea calibration method and device of DTS based on wireless temperature acquisition unit |
| CN110906171A (en) * | 2019-10-29 | 2020-03-24 | 中国石油化工股份有限公司 | Pipeline heat preservation condition monitoring and hierarchical control method based on dynamic envelope curve method |
| CN111120877A (en) * | 2019-12-12 | 2020-05-08 | 同济大学 | Drainage pipe network leakage monitoring equipment based on distributed optical fiber temperature measurement |
| CN112683416A (en) * | 2020-12-15 | 2021-04-20 | 电子科技大学 | Distributed optical fiber temperature sensing system based on graphene optical fiber |
| CN113063518A (en) * | 2021-03-24 | 2021-07-02 | 山东特种设备检验检测集团有限公司 | Atmospheric storage tank bottom plate corrosion monitoring method based on optical fiber sensing |
| CN113503844A (en) * | 2021-07-12 | 2021-10-15 | 浙江大学 | System and method for detecting sinking hollow-out characteristics of pipeline heat-insulating layer |
| CN113669637A (en) * | 2021-07-15 | 2021-11-19 | 安徽复盛信息科技有限公司 | Drainage pipeline monitoring system capable of realizing leakage point positioning based on distributed optical fiber |
| CN115541118A (en) * | 2022-09-21 | 2022-12-30 | 深圳盛和通信有限公司 | Monitoring system and method based on optical fiber temperature sensor |
| CN117781884A (en) * | 2023-12-04 | 2024-03-29 | 云南农业大学 | A comprehensive detection system and method for crack information in long-distance water conveyance tunnels |
| WO2024244290A1 (en) * | 2023-06-02 | 2024-12-05 | 三峡智慧水务科技有限公司 | Temperature-based multi-point groundwater infiltration monitoring device and method for pipe network |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996026425A1 (en) * | 1995-02-24 | 1996-08-29 | Geso, Gesellschaft Für Sensorik, Geotechnischen Umweltschutz Und Mathematische Modellierung Mbh, Jena | Method and device for checking and monitoring the state of tubes, containers, pipelines or the like |
| CN1712919A (en) * | 2005-07-04 | 2005-12-28 | 秦一涛 | Positioning distributed fibre-optical temperature sensing monitor and method for pipeline leakage |
| CN2809618Y (en) * | 2005-07-04 | 2006-08-23 | 秦一涛 | Distributed optical fiber temperature sensing and monitoring device for positioning pipeline leakage |
| CN102900955A (en) * | 2012-11-09 | 2013-01-30 | 天津亿利科能源科技发展股份有限公司 | Pipeline leakage on-line monitoring device and method based on f fiber temperature detection |
| CN106641739A (en) * | 2016-12-30 | 2017-05-10 | 天津市誉航润铭科技发展有限公司 | Water delivery pipe leakage locating system |
-
2017
- 2017-09-20 CN CN201710853417.6A patent/CN107576420A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996026425A1 (en) * | 1995-02-24 | 1996-08-29 | Geso, Gesellschaft Für Sensorik, Geotechnischen Umweltschutz Und Mathematische Modellierung Mbh, Jena | Method and device for checking and monitoring the state of tubes, containers, pipelines or the like |
| CN1712919A (en) * | 2005-07-04 | 2005-12-28 | 秦一涛 | Positioning distributed fibre-optical temperature sensing monitor and method for pipeline leakage |
| CN2809618Y (en) * | 2005-07-04 | 2006-08-23 | 秦一涛 | Distributed optical fiber temperature sensing and monitoring device for positioning pipeline leakage |
| CN102900955A (en) * | 2012-11-09 | 2013-01-30 | 天津亿利科能源科技发展股份有限公司 | Pipeline leakage on-line monitoring device and method based on f fiber temperature detection |
| CN106641739A (en) * | 2016-12-30 | 2017-05-10 | 天津市誉航润铭科技发展有限公司 | Water delivery pipe leakage locating system |
Non-Patent Citations (1)
| Title |
|---|
| 郭泊远等: "感温光纤测温法在供能管道监测技术的应用研究", 《科技视界》 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108955938A (en) * | 2018-07-02 | 2018-12-07 | 青岛汇安谷科技发展有限公司 | One kind being used for room temperature feed-line distributed fiber temperature measuring device and temp measuring method |
| CN109186717A (en) * | 2018-11-07 | 2019-01-11 | 沈阳工业大学 | A kind of continuous contactless seedless liquid level measuring system |
| CN109540300A (en) * | 2018-12-21 | 2019-03-29 | 青岛汇安谷科技发展有限公司 | The online Subarea calibration method and device of DTS based on wireless temperature acquisition unit |
| CN110906171B (en) * | 2019-10-29 | 2021-08-10 | 中国石油化工股份有限公司 | Pipeline heat preservation condition monitoring and hierarchical control method based on dynamic envelope curve method |
| CN110906171A (en) * | 2019-10-29 | 2020-03-24 | 中国石油化工股份有限公司 | Pipeline heat preservation condition monitoring and hierarchical control method based on dynamic envelope curve method |
| CN111120877A (en) * | 2019-12-12 | 2020-05-08 | 同济大学 | Drainage pipe network leakage monitoring equipment based on distributed optical fiber temperature measurement |
| CN112683416A (en) * | 2020-12-15 | 2021-04-20 | 电子科技大学 | Distributed optical fiber temperature sensing system based on graphene optical fiber |
| CN113063518A (en) * | 2021-03-24 | 2021-07-02 | 山东特种设备检验检测集团有限公司 | Atmospheric storage tank bottom plate corrosion monitoring method based on optical fiber sensing |
| CN113063518B (en) * | 2021-03-24 | 2022-07-26 | 山东特种设备检验检测集团有限公司 | Atmospheric storage tank bottom plate corrosion monitoring method based on optical fiber sensing |
| CN113503844A (en) * | 2021-07-12 | 2021-10-15 | 浙江大学 | System and method for detecting sinking hollow-out characteristics of pipeline heat-insulating layer |
| CN113669637A (en) * | 2021-07-15 | 2021-11-19 | 安徽复盛信息科技有限公司 | Drainage pipeline monitoring system capable of realizing leakage point positioning based on distributed optical fiber |
| CN115541118A (en) * | 2022-09-21 | 2022-12-30 | 深圳盛和通信有限公司 | Monitoring system and method based on optical fiber temperature sensor |
| WO2024244290A1 (en) * | 2023-06-02 | 2024-12-05 | 三峡智慧水务科技有限公司 | Temperature-based multi-point groundwater infiltration monitoring device and method for pipe network |
| CN117781884A (en) * | 2023-12-04 | 2024-03-29 | 云南农业大学 | A comprehensive detection system and method for crack information in long-distance water conveyance tunnels |
| CN117781884B (en) * | 2023-12-04 | 2024-08-09 | 云南农业大学 | System and method for comprehensively detecting crack information of long-distance water delivery tunnel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107576420A (en) | A kind of energy conduit leakage monitoring system | |
| Ren et al. | Pipeline corrosion and leakage monitoring based on the distributed optical fiber sensing technology | |
| CN105805556B (en) | A kind of distribution type fiber-optic leakage monitoring system | |
| CN109140250B (en) | Gas-liquid transport pipeline leakage point on-line monitoring system based on distributed optical fiber sensing | |
| Peng et al. | Application of the fiber-optic distributed temperature sensing for monitoring the liquid level of producing oil wells | |
| CN103939748B (en) | Underground piping based on fiber-optic grating sensor leakage early warning system and method thereof | |
| Zhang et al. | Leakage detection in a buried gas pipeline based on distributed optical fiber time-domain acoustic wave signal | |
| CN204678066U (en) | Optical fiber distributed type heat distribution pipe network monitoring system | |
| Zhao et al. | Scour monitoring system of subsea pipeline using distributed Brillouin optical sensors based on active thermometry | |
| CN206488060U (en) | A kind of underground pipe gallery natural gas line leakage on-line monitoring prior-warning device | |
| Cheng et al. | An experimental study on monitoring the phreatic line of an embankment dam based on temperature detection by OFDR | |
| CN203868702U (en) | Underground pipeline leakage early-warning system based on fiber bragg grating sensors | |
| CN104931525B (en) | A kind of insulating layer efficiency real-time online distributed monitoring method and system | |
| CN105547518A (en) | Mined-out-area distributed optical fiber temperature monitoring and early warning system and method thereof | |
| CN203404621U (en) | Pipeline system with functions of sensing and communication | |
| CN112728424A (en) | Pipeline leakage monitoring system and monitoring method based on spiral wound optical fiber | |
| CN109442561A (en) | A kind of distributed heat hydraulic piping leakage monitoring system | |
| CN201689198U (en) | High heat conduction type distributed temperature measurement sensing optical cable | |
| CN207279151U (en) | A kind of energy supply pipeline with temperature sensing optical fiber | |
| Liu et al. | Pipeline safety monitoring technology based on FBG-ROTDR joint system and its case study of urban drainage pipeline monitoring | |
| CN202755964U (en) | Underground medium interface monitoring device | |
| CN107830890A (en) | A kind of tunnel safety monitoring system based on fibre optical sensor | |
| CN205262640U (en) | Colliery collecting space area temperature monitoring early warning system | |
| CN211926782U (en) | Underground pipeline monitoring system based on distributed optical fiber sensing | |
| CN111613004B (en) | A tunnel distributed temperature monitoring fire warning system based on temperature sensing optical fiber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180112 |
|
| WD01 | Invention patent application deemed withdrawn after publication |