CN115127034A

CN115127034A - Intelligent management system for operation safety of pipe network

Info

Publication number: CN115127034A
Application number: CN202210691907.1A
Authority: CN
Inventors: 张声振
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-09-30

Abstract

The invention relates to a pipe network operation safety intelligent management system, which comprises a distributed optical fiber monitoring system, a point type remote centralized monitoring system and an operation safety monitoring platform, wherein the data output ends of the distributed optical fiber monitoring system and the point type remote centralized monitoring system can be connected to the operation safety monitoring platform, and the distributed optical fiber monitoring system comprises two formation modes, namely a monitoring host, a sensing optical cable and a user machine, or a monitoring host, a sensing optical cable, a novel digital pipeline and a user machine. Has the advantages that: the invention greatly improves the signal detection sensitivity, the reliability of the detection result and the safety protection level of the pipeline, and is assisted with the full-time coverage of networking monitoring with the established pipe network, so that the monitoring efficiency is comprehensively improved, the pipe network fault repairing cost is obviously saved, the service life is prolonged to reduce the operation cost, the use experience of users is greatly enriched and friendly, and the precious time is won for the timely disposal of events.

Description

Intelligent management system for operation safety of pipe network

Technical Field

The invention relates to the technical field of a pipe network safety intelligent management system for fluid conveying, in particular to a pipe network operation safety intelligent management system.

Background

The pipe network bears heavy working medium carrying tasks for a long time, and particularly for a trunk line which runs in a long distance and is embedded in a hidden or special environment, the operation condition is complex, and hidden dangers are easy to grow and are not easy to perceive. Once a fault is predicted, the troubleshooting operation involves many aspects such as production reduction (stop), coordination, repair, environment restoration, and claim settlement, which are often very expensive. Economic losses and negative social effects are even more difficult to measure if escalation is a security incident, or even a major security incident endangering human life. Therefore, the method has great significance for timely finding hidden dangers and eliminating faults to ensure the healthy and safe operation of the pipe network.

Currently, after years of construction, the accumulated stock of pipe networks in various places is large, and many pipe networks reach or approach the service life, so that the aging is serious, hidden dangers are clustered, and the form of operation safety management is increasingly severe. As a precondition for this, effective monitoring measures cannot be followed up in time, so that the response and handling of the abnormal event often lags behind, resulting in a continuously expanding loss that is difficult to withstand. Therefore, it is the subject matter of the solution to take an active monitoring technique.

In view of the foregoing, it is particularly urgent to develop new monitoring techniques. The network management system has the advantages that the internet of things technology is rapidly spread in recent years, and the achievement of the intelligent management of the network management has basic conditions. The development of the internet of things is rooted in the parallel advance of information digitization and sensing technologies, and particularly depends on deep excavation of a bottom-layer digitization technology. Therefore, the network which is supported on the basis of information digitization and is subject to management intelligence and is gradually upgraded is called as a digital network, and the digital network is used as a pipeline which forms a network main body. After preliminary upgrade, the pipe network has situation self-perception ability when being competent in original working medium carrying task concurrently, realizes the preliminary intellectuality of operation safety control, has also buried the pile foundation for the intellectuality of the comprehensive management of operation in the future.

Disclosure of Invention

The invention aims to provide an intelligent management system for pipe network operation safety, which relates to the technical field of pipe network intelligent control systems for conveying fluids, in particular to an intelligent management system for pipe network operation safety for water, oil and gas, heat supply, chemical engineering and mines, and solves the technical problems that the device cannot timely identify, respond and effectively handle safety threat events of the pipe network, such as leakage (seepage), invasion of a third party, PCCP (prestressed concrete Cylinder pipe) broken wire, uneven settlement of a pipeline, water hammer, pipe explosion and the like, so that the fault loss is continuously expanded, and serious safety accidents endangering the life safety of personnel are possibly caused, and the following scheme is adopted.

In order to achieve the above purpose, the invention adopts the technical scheme that: the intelligent management system for the operation safety of the pipe network is characterized by comprising a distributed optical fiber monitoring system, a point type remote centralized monitoring system and an operation safety monitoring platform, wherein the data output ends of the distributed optical fiber monitoring system and the point type remote centralized monitoring system can be connected to the operation safety monitoring platform.

The distributed optical fiber monitoring system is composed of a monitoring host, a sensing optical cable and a user machine together or composed of the monitoring host, the sensing optical cable, a digital pipeline and the user machine together, wherein the monitoring host is connected with the sensing optical cable, the sensing optical cable is parallel to the pipeline in direction and is arranged outside the pipeline which is overhead, a pipe ditch and buried and laid in a concealed mode, and the monitoring host is connected with a monitoring center in a local area network/4G/5G transmission mode; the monitoring host is connected with a sensing optical cable, the sensing optical cable is parallel to the direction of the pipeline and is arranged in a pipeline supplement layer which is laid in an overhead manner, a pipe ditch and the like in an exposed manner and a concealed manner and needs to take pipeline external supplement measures or in a cavity formed between an inner pipe and an outer pipe of a double-layer composite pipeline structure, and the monitoring host is connected with a monitoring center in a local area network/4G/5G transmission manner.

The point type remote centralized monitoring system comprises remote monitoring units and a monitoring host computer, wherein the remote monitoring units are arranged at nodes distributed on a pipeline edge line according to a certain distance, the monitoring host computer is positioned at a remote centralized control center, the remote monitoring units are connected with the monitoring host computer in a wide area network/local area network transmission mode, and the monitoring host computer is connected with the monitoring center through an intranet.

The distributed optical fiber monitoring system is constructed on a newly-built pipe network synchronously with the construction of the pipe network or is additionally arranged on the built pipe network at the later stage, and the point type remote centralized monitoring system is additionally arranged on the built pipe network or is arranged on the newly-built pipe network synchronously with the construction of the pipe network.

Furthermore, the digital pipeline is made by upgrading a double-layer composite pipe as a base type, and the optical cable is reasonably arranged in a cavity formed between the inner pipe and the outer pipe of the composite pipe in an optical cable built-in mode.

Furthermore, the point-type remote centralized monitoring system is provided with a measuring unit connected with the pipeline at a node distributed along the pipeline at a certain distance, the measuring unit comprises one or more of a pressure transmitter, a flowmeter and a hydrophone, and the system center comprehensively analyzes and judges the time point and the position of the occurrence of safety threat events such as leakage, pipe burst and water hammer by utilizing captured data such as flow and pressure fluctuation.

Furthermore, the distributed optical fiber monitoring system can simultaneously monitor one or more safety events of pipelines such as leakage, third-party construction damage and pipeline settlement, such as monitoring pipeline leakage, in a given time and space, when working medium leakage occurs, a signal to be detected in a pipeline monitoring field can be axially normally converged by taking a leakage point or a time point as an original point, a sensing optical fiber passing through the vicinity of the leakage point can sense and report signal change in the field, the system center judges the time point and the position of the event by extracting the signal change characteristic of the event, and the third-party damage and the occurrence of the pipeline uneven settlement event can be judged by comparing vibration sound line characteristics of various construction operations with pipeline stress deformation caused by geological disasters such as road surface bearing overload or soil collapse.

Further, the operation monitoring platform mainly comprises, but is not limited to, one or more combinations of the following types such as pipeline map, alarm notification, event log, event processing, authority management, system integration, and mobile phone APP, and at the same time, gains the following functions, 1) data analysis and mining functions: 2) intelligent early warning function: 3) the alarm log function: 4) intelligent assessment function: 5) the self-diagnosis function of the system: 6) pressure pulsation analysis function: 7) the intelligent patrol function: 8) the pipeline map component: 9) an event processing component: 10) a rights management component: 11) and (5) system integration components.

The invention has the technical effects that: the new pipe network is constructed by synchronously laying a set of distributed optical fiber monitoring system or additionally arranging a set of point type remote centralized monitoring system (according to the requirement for monitoring the expansion of the types of security threat events), and the built pipe network is additionally laid by a set of point type remote centralized monitoring system or additionally arranging a set of distributed optical fiber monitoring system (suitable for the overhead laying of pipelines, pipe corridors and the like). For a newly-built pipe network, the functions of a pipe network carrying and monitoring system are combined and constructed by matching the distributed optical fiber measurement technology and the digital pipeline, so that the obvious economy and convenience in pipe network construction are brought; the signal detection sensitivity, the reliability of a detection result and the safety protection level of a pipeline are greatly improved, the full-time-domain coverage of the whole pipe network monitored by the established pipe network is assisted, the monitoring efficiency is comprehensively improved, the pipe network fault repairing cost is remarkably saved, the service life is prolonged, and the operation cost is reduced; by means of deep data mining, on the basis of completing warning, recording and processing suggestions of abnormal events, the functions of current working condition evaluation of a pipe network and future intelligent upgrade backup of a system are expanded; the whole network monitoring platform of the safety information is displayed in a centralized mode and mobile pushing of mobile phone APP (application) hierarchical authorities is achieved, the user experience is greatly enriched and friendly, and precious time is won for timely disposal of events.

Drawings

FIG. 1 is a schematic diagram of the system of the present invention;

FIG. 2 is a schematic diagram of the connection of the monitoring platform according to the present invention;

FIG. 3 is a schematic diagram of a pressure transmitter of the present invention;

fig. 4 is a schematic diagram of the novel digital pipeline of the present invention.

Detailed Description

Referring to the attached figures 1-4, the intelligent management system for the operation safety of the pipe network is characterized by comprising a distributed optical fiber monitoring system, a point type remote centralized monitoring system and an operation safety monitoring platform, wherein the data output ends of the distributed optical fiber monitoring system and the point type remote centralized monitoring system can be connected to the operation safety monitoring platform;

the distributed optical fiber monitoring system is composed of a monitoring host, a sensing optical cable and a user machine together or composed of the monitoring host, the sensing optical cable, a digital pipeline and the user machine together, wherein the monitoring host is connected with the sensing optical cable, the sensing optical cable is parallel to the pipeline in direction and is arranged outside the pipeline which is overhead, a pipe ditch and buried and laid in a concealed mode, and the monitoring host is connected with a monitoring center in a local area network/4G/5G transmission mode; the monitoring host is connected with a sensing optical cable, the sensing optical cable is parallel to the direction of the pipeline and is arranged in a pipeline supplement layer which is exposed, laid and concealed in a pipe ditch and the like and needs to take pipeline external supplement measures or in a cavity formed between an inner pipe and an outer pipe of a double-layer composite pipeline structure, and the monitoring host is connected with a monitoring center in a local area network/4G/5G transmission mode;

the point type remote centralized monitoring system comprises remote monitoring units and a monitoring host computer, wherein the remote monitoring units are arranged at nodes distributed on a pipeline edge line according to a certain distance, the monitoring host computer is positioned at a remote centralized control center, the remote monitoring units are connected with the monitoring host computer in a wide area network/local area network transmission mode, and the monitoring host computer is connected with the monitoring center through an intranet;

The digital pipeline is made by upgrading a double-layer composite pipe serving as a base, and the optical cable is reasonably arranged in a cavity formed between an inner pipe and an outer pipe of the composite pipe in an optical cable built-in mode.

The specific embodiment of the scheme is that the point-type remote centralized monitoring system is provided with a measuring unit connected with a pipeline at a node distributed along the pipeline at a certain distance, the measuring unit comprises one or more sensor combinations mainly but not limited to the following types such as a pressure transmitter, a flowmeter and a hydrophone, and the system center comprehensively analyzes and judges the time point and the position of the occurrence of safety threat events such as leakage, pipe explosion and water attack by utilizing captured data such as flow and pressure fluctuation.

The distributed optical fiber monitoring system can simultaneously monitor one or more safety events of pipeline leakage, third-party construction damage and pipeline settlement, when working medium leakage occurs in given time and space, a signal to be detected in a pipeline monitoring field can be axially normally converged by taking a leakage point or a time point as an original point, a sensing optical fiber passing through the vicinity of the leakage point can sense signal change in the field and report the signal change, the system center judges the time point and the position of the event by extracting the signal change characteristics of the event, the vibration acoustic line characteristics of various construction operations and pipeline stress deformation caused by geological disasters such as road surface bearing overload or soil collapse are compared, and the third-party damage and the pipeline settlement event are judged.

The specific embodiment of the scheme is that the operation monitoring platform mainly comprises but is not limited to one or more combinations of the following types such as a pipeline map, an alarm notification, an event log, event processing, authority management, system integration and a mobile phone APP, and simultaneously gains the following functions, namely 1) data analysis and mining functions: 2) intelligent early warning function: 3) the alarm log function: 4) intelligent assessment function: 5) the self-diagnosis function of the system: 6) pressure pulsation analysis function: 7) the intelligent patrol function: 8) the pipeline map component: 9) an event processing component: 10) a rights management component: 11) and (5) system integration components.

The specific embodiment of the scheme is that the distributed optical fiber monitoring system adopts a direct measurement method, namely, sensing optical fibers arranged in a monitoring field are utilized to directly monitor the occurrence of abnormal events of a workshop section; the point-type remote centralized monitoring system adopts an indirect measurement method, namely, a remote monitoring unit arranged at each node of the workshop section detects the change of the running parameters of the workshop section to deduce the occurrence of abnormal events. The two can realize function complementation and can be connected to an operation safety monitoring platform in a grid mode.

The specific embodiment of the scheme is that the distributed optical fiber safety monitoring system comprises: the system consists of a monitoring host, a sensing optical cable and a user machine together, or consists of the monitoring host, the sensing optical cable, a digital pipeline and the user machine together, wherein the monitoring host and the sensing optical cable are main core components of the system; the monitoring host, the sensing optical cable and the digital pipeline are main core components of the system.

Monitoring the host computer: generally arranged among special equipment of a centralized control center. The intelligent air conditioner adopts a modular design and consists of core modules such as an optical system, an embedded control system, an algorithm server and a data server and auxiliary modules such as a UPS, an air conditioner and a hardware firewall. The device has the advantages of high integration, and convenient installation and maintenance.

The main functions of the monitoring host machine are to modulate, emit and measure signal light to obtain the measured change of the monitoring field, and to calculate, display and store the obtained data.

A sensing optical cable: the sensing optical cable has the functions of a sensing element and a transmission medium, namely the sensing optical cable is arranged along the whole direction of the pipeline, senses the measured axial spatial distribution and time-varying information and bears the function of the signal transmission medium.

Digital pipeline: the novel pipeline which is upgraded and manufactured by taking the double-layer composite pipe as a base is adopted, and the optical cable is reasonably arranged in a cavity between the inner pipe and the outer pipe of the composite pipe in an optical cable built-in mode.

The annular cavity naturally formed between the inner pipe and the outer pipe of the composite pipe is fully utilized as a laying platform of the sensing optical cable, and the carrying function and the sensing function are structurally combined into a whole. The pipeline is a main body for forming the carrying of the working medium in the pipe network transportation system, is an important component of a signal transmission component in the pipe network monitoring system, is an armor for protecting the buried optical cable, and is used for constructing the rich sensing ecology of the monitoring system by utilizing the sensitive characteristics of signal light to various physical quantities in cooperation with all departments of the monitoring system. Greatly improving the use performance of the pipe network and the economic convenience of construction

The specific embodiment of this scheme is, point type remote centralized monitoring system mainly constitutes: the remote monitoring units are arranged at nodes distributed along the pipeline at a certain distance, and the centralized control center at the remote end monitors the host and the user machine.

A remote monitoring unit: the system comprises a Remote Terminal Unit (RTU), a data acquisition unit, a sensor assembly, a power supply assembly, a lightning protection facility and the like. The sensor package is typically selected from a combination of high frequency dynamic pressure sensors, hydrophones, flow meters, and the like, primarily but not limited to the following types. The power supply mode is solar energy or a storage battery.

The remote monitoring unit has the functions of completing the tasks of data acquisition, processing and storage on site of the node, interacting with a remote centralized control management center in real time, reporting measured data characteristics to the management center and receiving instructions of the management center. The communication between the two is in a 4G/5G wireless communication mode.

Monitoring the host computer: the monitoring host computer is responsible for receiving and processing various collected data reported by the node monitoring units,

the system center monitors the following types of information such as real-time flow, pressure and the like through data analysis nodes, and judges the abnormal working conditions of the working section after comprehensive analysis, thereby realizing the functions of restoring, displaying, storing, alarming, processing suggestions and the like of abnormal events.

The specific embodiment of the scheme is that the operation safety monitoring platform mainly comprises the following types of pipeline maps, alarm notifications, event logs and event processing; the system comprises functional components such as authority management, system integration, mobile phone APP and the like. At the same time, the following functions are gained.

1) Data analysis and mining functions: through a oscillogram, a spectrogram, a spectral waterfall graph and the like, real-time and historical data are called for analysis and display, screening is carried out according to various conditions such as pipelines, data types, graph types, time periods, measuring points and the like, the detailed characteristics of signals are analyzed from two dimensions of a time domain and a frequency domain, the characteristics are grabbed, compared and learned, a signal characteristic library of the system is perfected, and the system performance is improved. And mutual comparison among characteristic curves can be formed through real-time trend analysis, historical trend analysis and trend comparison analysis of related trends, so that the effectiveness of pipeline operation measure improvement is judged, and the pipeline safety management level is improved.

2) Intelligent early warning function: the method comprises the steps of continuously monitoring the safety state of a pipeline for 24 hours, automatically judging and generating alarm information when safety threat events such as leakage, pipe explosion, displacement settlement, third party invasion, water attack and the like mainly but not limited to the following types occur, pushing the alarm information into an alarm notification assembly of a user software interface, displaying the alarm information on a foreground of software in a list mode in detail, identifying events on a pipeline map assembly, and displaying key information such as time, position, types and the like. The alarm information can be simultaneously pushed to related responsible persons by combining with the operation management rules of the pipeline operator, so that the related responsible persons can know the alarm at the first time so as to respond.

3) The alarm log function: the alarm log is a memorandum of alarm information, the record list comprises all alarm information such as sensor alarm, pipeline alarm and the like, a user can screen the events according to dimensions such as interested event types, time ranges, space ranges and the like, and can derive an event list of an excel version, so that the overall effective management of the events is facilitated.

4) Intelligent assessment function: the system can carry out overall evaluation on the health state of the pipeline, and visually display the pipeline state, namely, good (green), attention (yellow), inspection (brown), shutdown (red) and no data (grey) according to the state evaluation result. Meanwhile, state monitoring operation reports (daily report, weekly report, monthly report and annual report) can be generated periodically according to customization of users.

5) The self-diagnosis function of the system: the system has a self-diagnosis function, can monitor the running states of the sensing optical cable, each monitoring unit and the monitoring host, adopts a standard flow to recover equipment after abnormity occurs, and informs a manager at the first time if the recovery fails.

6) Pressure pulsation analysis function: the system can monitor and identify pressure pulsation signals including pressure fluctuation caused by valve switch, pump stop and start, working medium flow fluctuation of large customers and the like, especially water hammer. Whether the pressure fluctuation exceeds the standard or not and has resonance property can be evaluated according to the design of the pipeline. The system helps a user to monitor pipeline threat events caused by pressure, and improves or prevents disasters.

7) The intelligent patrol function: the system can be provided with an intelligent patrol function, so that the patrol frequency is improved, and meanwhile, the consumption of manpower field patrol is reduced.

8) The pipeline map component: in order to facilitate a user to directly obtain a specific geographic position where an abnormal event occurs, a pipeline map component is built by using a GIS map system, and the geographic trend of the pipeline is drawn on an interface of the pipeline map component. When an event occurs, the staff can guide the incident position by using the GPS at the first time to deal with the related event.

9) An event processing component: the system is used for closed-loop management of security events, not only alarm information is provided, but also operation management personnel can use the event processing component to perform complete management of the events, for example, when third-party intrusion occurs, a patrol officer is arranged to confirm and stop on site, the process and the result of event processing can be directly recorded in the system, and the alarm is closed through the system.

10) A rights management component: the system configures different permissions for related personnel according to different levels. The administrator has the highest authority, can use all functions of the system and consult all information; the role of the rights management function is to avoid the leakage of important information.

11) System integration component (open interface): the system has an open interface, and the central system can obtain the pipeline safety early warning information through the open interface, so that unnecessary work that monitoring personnel need to switch between different systems is reduced. Meanwhile, the system can be linked with an automatic system to ensure that action can be taken at the first time after a pipeline safety event occurs, so that steam transmission operation is closed, and loss and secondary disasters caused are reduced.

The specific embodiment of the scheme is that for leakage (seepage) of the optical fiber distributed monitoring pipeline, in a given time and space, when working medium leakage occurs, a signal to be detected in a lumen monitoring field can be in axial normal convergence by taking a leakage point or a time point as an original point. The sensing optical fiber near the passing leakage point can sense the signal change in the field and report the signal change, and the system center judges the time point and the position of the incident by extracting the signal change characteristics of the incident. Especially for monitoring leakage of the buried and laid pipeline, the detection sensitivity and reliability can be greatly improved by matching the optical fiber distributed monitoring technology with the digital pipeline, the leakage of the working pipe and the outer sleeve of the composite pipeline can be simultaneously detected, the monitoring efficiency is obviously improved, and the safety protection level is improved.

For the third party infringement of the buried pipeline monitored in an optical fiber distributed mode, when a threat event occurs near the pipeline, the phase of light transmitted in the optical fiber is changed due to external vibration, and vibration signals near the pipeline can be obtained by measuring the phase change of light waves. Through a unique identification algorithm, the vibration signal can be qualitatively analyzed, pipeline security threat events can be found in time, and the events can be tracked and positioned.

For monitoring the sedimentation of the buried pipeline in an optical fiber distributed mode, the occurrence of the uneven sedimentation event of the pipeline caused by geological disasters such as overload bearing on the road surface or soil collapse is judged by measuring the stress deformation of the sensing optical fiber distributed on the pipeline.

The specific embodiment of the scheme is that for the leakage event of the pipeline adopting point-type remote centralized monitoring, when working medium leaks, the working medium is lost to cause the density of the working medium to be reduced and the pressure to be reduced at a leakage point, the pressure drop is continuously diffused in a waveform mode to the upstream and the downstream of the leakage point along the pipe wall of a working pipe, the pressure sensors positioned at two sides of the leakage point can capture the leakage information contained in pressure waves and report the leakage information, and the time point and the position of the event are judged by the system center by utilizing the wave speed and the captured time difference and adopting a flow and pressure comprehensive analysis method. And the positioning accuracy and the detection sensitivity can be further improved by means of a real-time model and a multi-stage flow balance calculation method.

For the point-type remote centralized monitoring of pipe explosion, sensing units (RTUs) are arranged at nodes distributed at a certain distance along the pipeline, optional combinations comprise pressure gauges, flow meters, underwater acoustic sensors and the like, the RTUs acquire real-time pipe information and report the real-time pipe information to a central control system in a wireless or wired transmission mode, and the system monitors the pipe explosion event by integrating the real-time flow, pressure and underwater acoustic information of all monitoring points.

For the point-type remote centralized monitoring of pipeline water hammer: if the sharp change of working medium flow is continuously pushed forward during operation of the long-distance pipeline with pressure, the sharp fluctuation and vibration of the working medium pressure in the pipeline can be caused, and water hammer is formed. The weak part of the piping system pressure-bearing is easily damaged by the severe pressure fluctuation, and the external fixing piece of the piping system is often destroyed by the huge inertia momentum.

The point-type remote centralized monitoring technology can effectively identify the occurrence of water hammer events, and can also utilize big data and ai technology to judge the elimination effect of water hammer and assist in evaluating the quality of a pipe network to retrieve the weak points. The working process of the system is that a high-frequency dynamic pressure sensor at a node transmits a collected pressure change analog signal to a Remote Terminal Unit (RTU) through analog-to-digital conversion of a data collection unit, the RTU based on a linux operating system sinks the data collection and processing work, the pressure characteristic of a pipe network water hammer is screened out, the characteristic is reported to a management center, and the center displays an event on a pipeline map interface based on a GIS system.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A pipe network operation safety intelligent management system is characterized by comprising a distributed optical fiber monitoring system, a point type remote centralized monitoring system and an operation safety monitoring platform, wherein the data output ends of the distributed optical fiber monitoring system and the point type remote centralized monitoring system can be connected to the operation safety monitoring platform;

the distributed optical fiber monitoring system is composed of a monitoring host, a sensing optical cable and a user machine together or composed of the monitoring host, the sensing optical cable, a digital pipeline and the user machine together, wherein the monitoring host is connected with the sensing optical cable, the sensing optical cable is parallel to the pipeline in direction and is arranged outside the pipeline which is overhead, a pipe ditch and embedded and laid, and the monitoring host is connected with a monitoring center in a local area network/4G/5G transmission mode; the monitoring host is connected with a sensing optical cable, the sensing optical cable is parallel to the direction of the pipeline and is arranged in a pipeline supplement layer which is exposed, laid and concealed in a pipe ditch and the like and needs to take pipeline external supplement measures or in a cavity formed between an inner pipe and an outer pipe of a double-layer composite pipeline structure, and the monitoring host is connected with a monitoring center in a local area network/4G/5G transmission mode;

2. The intelligent management system for the operation safety of the pipe network according to claim 1, wherein the digital pipeline is made by upgrading a double-layer composite pipe as a basic type, and the optical cable is reasonably arranged in a cavity formed between an inner pipe and an outer pipe of the composite pipe in an optical cable built-in mode.

3. The intelligent management system for the operation safety of the pipe network according to claim 1, wherein the point-type remote centralized monitoring system is provided with a measuring unit connected with the pipe at a node distributed along the pipeline at a certain distance, the measuring unit comprises one or more combinations of a pressure transmitter, a flowmeter and a hydrophone, and the system center comprehensively analyzes and judges the time point and the position of the occurrence of safety threat events such as leakage, pipe burst and water attack by utilizing captured data such as flow and pressure fluctuation.

4. The intelligent management system for operation security of pipe network according to claim 1, the distributed optical fiber monitoring system can simultaneously monitor one or more safety events such as pipeline leakage, PCCP broken wire, third-party construction invasion and pipeline settlement, wherein the safety events are mainly but not limited to the following types, such as in a given time and space, when working medium leakage occurs, a signal to be detected in a pipeline monitoring field can be converged in an axial normal mode by taking a leakage point or a time point as an original point, a sensing optical fiber passing through the vicinity of the leakage point can sense and report signal change in the field, the system center judges the time point and the position of an incident by extracting signal change characteristics of the incident, and if vibration sound-print characteristics of various construction operations are compared with pipeline stress deformation caused by geological disasters such as road surface bearing overload or soil collapse, infringement of a third party and pipeline settlement events are judged.

5. The intelligent management system for the operation security of the pipe network according to claim 1, wherein the operation monitoring platform mainly comprises but not limited to one or more of the following types such as pipe map, alarm notification, event log, event processing, authority management, system integration, and mobile APP, and at the same time, the following functions are gained, 1) data analysis and mining functions: 2) intelligent early warning function: 3) the alarm log function: 4) intelligent assessment function: 5) the system self-diagnosis function: 6) pressure pulsation analysis function: 7) the intelligent patrol function: 8) the pipeline map component: 9) an event processing component: 10) a rights management component: 11) and (5) system integration components.