CN114738676A - Pipeline monitoring system of distributed optical fiber sensor and monitoring method thereof - Google Patents
Pipeline monitoring system of distributed optical fiber sensor and monitoring method thereof Download PDFInfo
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- CN114738676A CN114738676A CN202210274342.7A CN202210274342A CN114738676A CN 114738676 A CN114738676 A CN 114738676A CN 202210274342 A CN202210274342 A CN 202210274342A CN 114738676 A CN114738676 A CN 114738676A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The invention discloses a pipeline monitoring system of a distributed optical fiber sensor and a monitoring method thereof, which comprises the distributed optical fiber sensor, a monitoring module, a data transmission module, a central processing unit, a data simulation demonstration module, a distributed optical fiber temperature measurement module and a server processing module, wherein the distributed optical fiber sensor is connected with the monitoring module, the monitoring module is connected with the data transmission module, and the data transmission module is respectively connected with the central processing unit and the distributed optical fiber temperature measurement module. The analysis efficiency is improved, and the accuracy of the analysis result is ensured.
Description
Technical Field
The invention relates to the technical field of pipeline monitoring, in particular to a pipeline monitoring system of a distributed optical fiber sensor and a monitoring method thereof.
Background
Pipeline transportation is an important way for water resource and oil gas transportation, but leakage accidents often occur in pipelines in the long-term service process. The main reasons for the relief include corrosion of the pipeline and artificial damage.
When the traditional pipeline is used, the traditional pipeline is easily interfered by external environmental factors to cause temperature abnormality so as to cause accidents, if the traditional pipeline cannot be processed in time, the whole line can be damaged, and therefore, the early-stage leakage monitoring of the pipeline and early warning of geological disasters, machinery and manual construction which endanger the safety of the pipeline, even malicious pipeline damage and punching and stealing behaviors are particularly important. The traditional leakage monitoring method cannot monitor pipeline leakage, cannot judge the position and the area of a leakage point, and cannot perform real-time monitoring and early warning on dangerous events which harm pipeline safety, such as various natural disasters, mechanical operations, manual operations and the like, so that the pipeline monitoring system of the distributed optical fiber sensor and the monitoring method thereof are provided.
Disclosure of Invention
The present invention provides a pipeline monitoring system of a distributed optical fiber sensor and a monitoring method thereof, so as to solve the problems proposed in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a pipeline monitoring system of a distributed optical fiber sensor comprises the distributed optical fiber sensor, a monitoring module, a data transmission module, a central processing unit, a data simulation demonstration module, a distributed optical fiber temperature measurement module and a server processing module, wherein the distributed optical fiber sensor is connected with the monitoring module, the monitoring module is connected with the data transmission module, the data transmission module is respectively connected with the central processing unit and the distributed optical fiber temperature measurement module, the distributed optical fiber temperature measurement module is connected with the server processing module, the central processing unit is interactively connected with the server processing module, and the central processing unit is connected with the data simulation demonstration module;
the distributed optical fiber sensor comprises a distributed temperature sensor and a distributed disturbance sensor, wherein the distributed temperature sensor is used for acquiring temperature change information outside the pipeline;
the central processing unit is used for summarizing the data and processing the data;
and the server processing module is used for performing cloud storage on the processed data.
As further preferable in the present technical solution: the server processing module is connected with the fault alarm module;
and the fault alarm module is used for alarming when a temperature fault occurs and quickly determining the position of the fault.
As further preferable in the present technical solution: the distributed optical fiber temperature measurement module comprises an optical coupler and an optical splitter, and the optical coupler performs temperature measurement on the pipeline through Raman scattered light and the optical splitter.
As further preferable in the present technical solution: the data simulation demonstration module is connected with the analysis result display module;
the data simulation demonstration module is used for receiving the comprehensive data processed by the central processing unit, simulating and demonstrating the data according to an internal database of the data simulation demonstration module, and analyzing the probability of pipeline temperature caused by each data according to the simulation demonstration result.
As further preferable in the present technical solution: the analysis result display module is connected with the server processing module;
and the analysis result display module is used for displaying the probability analyzed by the data simulation demonstration module in a percentage mode and then transmitting the displayed output to the server processing module.
As further preferable in the present technical solution: the time for backward Raman scattering light at a certain point of the optical fiber in the distributed optical fiber temperature measurement module to return to the input end is t, and the distance formula from the point to the incident end is as follows:
The invention provides a pipeline monitoring method of a distributed optical fiber sensor, which comprises the following steps:
s1, detecting whether temperature change accidents occur in the pipeline through the distributed optical fiber sensor, wherein a certain temperature difference generally exists between the conveyed liquid and the outside in the conveying process of the crude oil pipeline, the tap water pipeline and other conveying pipelines through the distributed optical fiber sensor;
s2, receiving the distributed optical fiber sensor through the monitoring module, and starting the fault alarm module to work through the monitoring module when the temperature of the leaked liquid is different from the outside temperature and the temperature field of the peripheral medium changes along with the generation of a coupling condition of heat transfer between the leaked liquid and the peripheral medium and the diffusion of the leaked liquid;
s3, transmitting the data received by the monitoring module to a central processing unit through a data transmission module, and processing and summarizing the data through the central processing unit;
s4, receiving the data processed and aggregated by the central processing unit through the data simulation demonstration module, performing simulation demonstration on the data through the internal database so as to analyze the probability of pipeline temperature caused by each item of data, and transmitting the analysis result to the server processing module through the analysis result display module;
and S5, sending the alarm information to a user through the server processing module, accessing the server processing module through the user connection cloud end, and checking the data and the analysis result stored by the server processing module.
S6, embedding several sensing optical fibers at different positions of the pipeline based on the Raman temperature measurement principle, and realizing long-term, distributed and real-time online monitoring of the temperature field change around the whole pipeline through the distributed optical fiber temperature measurement system.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, various data which are easy to interfere with the pipeline in the external environment are monitored through the distributed optical fiber sensor, then whether the pipeline has temperature change or not is detected, and when the pipeline temperature is detected, various data in the external environment are simulated and analyzed through the data simulation demonstration module, so that the probability of the pipeline temperature caused by various data is obtained, further, the manual analysis of workers is not needed, the analysis efficiency is improved, and the accuracy of an analysis result is ensured.
Drawings
FIG. 1 is a schematic block diagram of a system of the present invention;
fig. 2 is a schematic view of the pipeline monitoring principle of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-2, the present invention provides a technical solution: a pipeline monitoring system of a distributed optical fiber sensor comprises the distributed optical fiber sensor, a monitoring module, a data transmission module, a central processing unit, a data simulation demonstration module, a distributed optical fiber temperature measurement module and a server processing module, wherein the distributed optical fiber sensor is connected with the monitoring module, the monitoring module is connected with the data transmission module, the data transmission module is respectively connected with the central processing unit and the distributed optical fiber temperature measurement module, the distributed optical fiber temperature measurement module is connected with the server processing module, the central processing unit is interactively connected with the server processing module, and the central processing unit is connected with the data simulation demonstration module;
the distributed optical fiber sensor comprises a distributed temperature sensor and a distributed disturbance sensor, wherein the distributed temperature sensor is used for acquiring temperature change information outside the pipeline;
the central processing unit is used for summarizing the data and processing the data;
and the server processing module is used for performing cloud storage on the processed data.
In this embodiment, specifically: the server processing module is connected with the fault alarm module;
and the fault alarm module is used for alarming when a temperature fault occurs and quickly determining the position of the fault.
In this embodiment, specifically: the distributed optical fiber temperature measurement module comprises an optical coupler and a light splitter, and the optical coupler performs temperature measurement on the pipeline through Raman scattering light and the light splitter.
In this embodiment, specifically: the data simulation demonstration module is connected with the analysis result display module;
the data simulation demonstration module is used for receiving the comprehensive data processed by the central processing unit, simulating and demonstrating the data according to the internal database of the central processing unit, and analyzing the probability of pipeline temperature caused by each item of data according to the simulation demonstration result.
In this embodiment, specifically: the analysis result display module is connected with the server processing module;
and the analysis result display module is used for displaying the probability analyzed by the data simulation demonstration module in a percentage mode and then transmitting the displayed output to the server processing module.
In this embodiment, specifically: the time for backward Raman scattering light at a certain point of the optical fiber in the distributed optical fiber temperature measurement module to return to the input end is t, and the distance formula from the point to the incident end is as follows:
The invention provides a pipeline monitoring method of a distributed optical fiber sensor, which comprises the following steps:
s1, detecting whether temperature change accidents occur in the pipeline through the distributed optical fiber sensor, wherein a certain temperature difference generally exists between the conveying liquid and the outside in the conveying process of the crude oil pipeline, the tap water pipeline and other conveying pipelines through the distributed optical fiber sensor;
s2, receiving the distributed optical fiber sensor through the monitoring module, and starting the fault alarm module to work through the monitoring module when the temperature of the leaked liquid is different from the outside temperature and the temperature field of the peripheral medium changes along with the generation of a coupling condition of heat transfer between the leaked liquid and the peripheral medium and the diffusion of the leaked liquid;
s3, transmitting the data received by the monitoring module to a central processing unit through a data transmission module, and processing and summarizing the data through the central processing unit;
s4, receiving the data processed and aggregated by the central processing unit through the data simulation demonstration module, performing simulation demonstration on the data through the internal database so as to analyze the probability of pipeline temperature caused by each item of data, and transmitting the analysis result to the server processing module through the analysis result display module;
and S5, sending the alarm information to the user through the server processing module, accessing the server processing module through the user connection cloud end, and checking the data and the analysis result stored in the server processing module.
S6, embedding several sensing optical fibers at different positions of the pipeline based on the Raman temperature measurement principle, and realizing long-term, distributed and real-time online monitoring of the temperature field change around the whole pipeline through the distributed optical fiber temperature measurement system.
When the system is used, a certain temperature difference generally exists between the conveyed liquid and the outside in the conveying process of the conveying pipelines such as the crude oil pipeline, the tap water pipeline and the like. When the temperature of the leaking liquid is different from the external temperature, the temperature field of the surrounding medium will change as a coupled condition occurs in which the leaking liquid transfers heat with the surrounding medium and the leaking liquid itself diffuses. Therefore, the problem of liquid leakage in the pipeline can be converted into the problem of detection of abnormal temperature of the medium around the pipeline. The pipeline leakage monitoring based on the distributed optical fiber sensor is an advanced technology for monitoring the temperature field change, and long-term distributed real-time online monitoring of the temperature field change around the whole pipeline can be realized through a distributed optical fiber temperature measuring system by burying a plurality of sensing optical fibers at different positions of the pipeline based on the Raman temperature measuring principle.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a distributed optical fiber sensor's pipeline monitoring system, includes distributed optical fiber sensor, monitoring module, data transmission module, central processing unit, data simulation demonstration module, distributed optical fiber temperature measurement module and server processing module, its characterized in that: the distributed optical fiber sensor is connected with a monitoring module, the monitoring module is connected with a data transmission module, the data transmission module is respectively connected with a central processing unit and a distributed optical fiber temperature measurement module, the distributed optical fiber temperature measurement module is connected with a server processing module, the central processing unit is interactively connected with the server processing module, and the central processing unit is connected with a data simulation demonstration module;
the distributed optical fiber sensor comprises a distributed temperature sensor and a distributed disturbance sensor, wherein the distributed temperature sensor is used for acquiring temperature change information outside the pipeline;
the central processing unit is used for summarizing the data and processing the data;
and the server processing module is used for performing cloud storage on the processed data.
2. The pipeline monitoring system of the distributed optical fiber sensor according to claim 1, wherein: and the server processing module is connected with the fault alarm module.
3. The pipeline monitoring system of the distributed optical fiber sensor according to claim 2, wherein: the server processing module is connected with the fault alarm module, and the fault alarm module is used for alarming when temperature faults occur and quickly determining the fault position.
4. The pipeline monitoring system of the distributed optical fiber sensor according to claim 1, wherein: the distributed optical fiber temperature measurement module comprises an optical coupler and an optical splitter.
5. The pipeline monitoring system of the distributed optical fiber sensor according to claim 4, wherein: the optical coupler measures the temperature of the pipeline through the Raman scattering light and the optical splitter.
6. The pipeline monitoring system of the distributed optical fiber sensor according to claim 1, wherein: the data simulation demonstration module is connected with the analysis result display module.
7. The pipeline monitoring system of the distributed optical fiber sensor according to claim 6, wherein: the data simulation demonstration module is used for receiving the comprehensive data processed by the central processing unit, simulating and demonstrating the data according to the internal database of the central processing unit, and analyzing the probability of pipeline temperature caused by each item of data according to the simulation demonstration result.
8. The pipeline monitoring system of the distributed optical fiber sensor according to claim 1, wherein: the analysis result display module is connected with the server processing module;
and the analysis result display module is used for displaying the probability analyzed by the data simulation demonstration module in a percentage mode and then transmitting the displayed output to the server processing module.
9. The pipeline monitoring system of the distributed optical fiber sensor according to claim 4, wherein: the time for backward Raman scattering light at a certain point of the optical fiber in the distributed optical fiber temperature measurement module to return to the input end is t, and the distance formula from the point to the incident end is as follows:
10. A method of pipeline monitoring of a distributed fibre optic sensor according to claims 1-6, comprising the steps of:
s1, detecting whether temperature change accidents occur in the pipeline through the distributed optical fiber sensor, wherein a certain temperature difference generally exists between the conveyed liquid and the outside in the conveying process of the crude oil pipeline, the tap water pipeline and other conveying pipelines through the distributed optical fiber sensor;
s2, receiving the distributed optical fiber sensor through the monitoring module, and starting the fault alarm module to work through the monitoring module when the temperature of the leaked liquid is different from the outside temperature and the temperature field of the peripheral medium changes along with the generation of a coupling condition of heat transfer between the leaked liquid and the peripheral medium and the diffusion of the leaked liquid;
s3, transmitting the data received by the monitoring module to a central processing unit through a data transmission module, and processing and summarizing the data through the central processing unit;
s4, receiving the data processed and aggregated by the central processing unit through the data simulation demonstration module, performing simulation demonstration on the data through the internal database so as to analyze the probability of pipeline temperature caused by each item of data, and transmitting the analysis result to the server processing module through the analysis result display module;
and S5, sending the alarm information to the user through the server processing module, accessing the server processing module through the user connection cloud end, and checking the data and the analysis result stored in the server processing module.
S6, embedding several sensing optical fibers at different positions of the pipeline based on the Raman temperature measurement principle, and realizing long-term, distributed and real-time online monitoring of the temperature field change around the whole pipeline through the distributed optical fiber temperature measurement system.
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