CN115077816A - Gathering and transportation pipeline corrosion leakage experiment system - Google Patents

Gathering and transportation pipeline corrosion leakage experiment system Download PDF

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Publication number
CN115077816A
CN115077816A CN202110264701.6A CN202110264701A CN115077816A CN 115077816 A CN115077816 A CN 115077816A CN 202110264701 A CN202110264701 A CN 202110264701A CN 115077816 A CN115077816 A CN 115077816A
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pipeline
leakage
corrosion
simulation pipeline
data processing
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CN115077816B (en
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孙秉才
邓金睿
罗方伟
赵辉
苗文成
黄伟
姜瑞景
和宁宁
何毅
曹航博
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Petrochina Co Ltd
CNPC Research Institute of Safety and Environmental Technology Co Ltd
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Petrochina Co Ltd
CNPC Research Institute of Safety and Environmental Technology Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/24Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
    • G01M3/2815Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00Investigating resistance of materials to the weather, to corrosion, or to light

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  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
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  • Environmental & Geological Engineering (AREA)
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Abstract

The application discloses defeated pipeline of collection corrodes leakage experiment system. Wherein, this system includes: a medium circulation system, wherein the medium circulation system comprises at least a circulation line; the corrosion simulation pipeline and the leakage simulation pipeline are connected in parallel to the circulating pipeline and are provided with communication modules at least for receiving control signals of the data processing system; and the data processing system is used for receiving and processing the acquisition signals acquired by each sensor in the preset sensor set, generating a control instruction, and sending the control instruction to the corrosion simulation pipeline and the leakage simulation pipeline through the communication module to control the running states of the corrosion simulation pipeline and the leakage simulation pipeline. The method and the device solve the technical problems of long time consumption, low efficiency and inaccurate detection result caused by adopting a manual detection mode in the correlation technique.

Description

Gathering and transportation pipeline corrosion leakage experiment system
Technical Field
The application relates to the field of pipeline corrosion and leakage detection, in particular to a gathering and transportation pipeline corrosion leakage experiment system.
Background
Pipeline transportation is a high-efficient convenient oil gas transportation mode, because factors such as pipeline corrosion, natural environment, artificial destruction, pipeline leakage takes place occasionally. The pipeline is subjected to erosion corrosion or electrochemical corrosion in different degrees due to different materials, parts, types of conveying media and conveying conditions (temperature, pressure and the like), so that pipeline leakage accidents are caused, and the pipeline leakage not only causes serious economic loss and pollutes the ecological environment, but also causes negative social influence. The pipeline leakage is monitored in real time, and when the leakage condition of the pipeline is found, the pipeline leakage point is accurately positioned in time, so that the risk loss caused by leakage in the process of maintaining the pipeline safety to the maximum extent is reduced.
The related pipeline leakage monitoring and positioning technology mainly comprises manual inspection, a pressure difference method and the like. In the practical application process, the problems of noise interference, low monitoring sensitivity, large error and the like exist in the single pipeline leakage monitoring and positioning technology probably due to the fact that pipelines are not fully transported or the pressure of the first station and the last station of the pipelines is unbalanced, and accordingly monitoring is inaccurate and the false alarm rate is high. At present, an effective pipeline leakage monitoring and positioning technology integrating multiple detection technologies and a pipeline corrosion evaluation method aiming at working conditions such as different pipeline materials, parameters, different conveying medium components, temperature, pressure and the like are lacked. Namely, in the related art, a manual mode is generally adopted when the corrosion degree of the pipeline is evaluated, and leakage monitoring and positioning are carried out, so that the problems of single technology, time and labor consumption and large error exist.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the application provides a gathering and transportation pipeline corrosion leakage experiment system, which at least solves the technical problems of long time consumption, low efficiency and inaccurate detection result caused by adopting a manual detection mode in the related technology.
According to an aspect of an embodiment of the present application, there is provided a gathering and transportation pipeline corrosion leakage experiment system, including: the medium circulation system at least comprises a circulation pipeline, wherein a preset sensor set for acquiring various types of acquisition signals is respectively arranged at the inlet end and the outlet end of the circulation pipeline; the corrosion simulation pipeline and the leakage simulation pipeline are connected in parallel to the circulating pipeline and are provided with communication modules at least for receiving control signals of the data processing system, wherein the corrosion simulation pipeline is a physical pipeline for detecting a corrosion state, and the leakage simulation pipeline is a physical pipeline for detecting a leakage state; and the data processing system is used for receiving and processing the acquisition signals acquired by each sensor in the preset sensor set, generating a control instruction, sending the control instruction to the corrosion simulation pipeline and the leakage simulation pipeline through the communication module, and controlling the running states of the corrosion simulation pipeline and the leakage simulation pipeline so as to simulate and measure different corrosion and/or leakage conditions.
Optionally, the corrosion simulation pipeline and the leakage simulation pipeline are connected in parallel to the circulation pipeline through a three-way valve, wherein the leakage simulation pipeline is provided with at least one set of electromagnetic valves and leakage holes corresponding to the electromagnetic valves.
Optionally, the electromagnetic valve is connected to the communication module, and is configured to receive a control signal of the data processing system through the communication module, and control the opening of the leakage hole and the leakage duration of the leakage hole through a processor corresponding to the electromagnetic valve, so as to simulate different leakage conditions.
Optionally, the leakage hole is a leakage hole with an adjustable notch shape and size, and the leakage hole is used for receiving a control signal of the data processing system through the communication module and adjusting the notch shape and/or size of the leakage hole through a processor corresponding to the leakage hole so as to simulate different leakage conditions, wherein the notch shape is a shape simulated according to the shape of the notch when leakage actually occurs.
Optionally, the data processing system is configured to receive corresponding acquisition signals from an inlet end and an outlet end of the circulation pipeline, respectively; and comparing the magnitude of the acquired signals at the inlet end and the outlet end, and determining the leakage condition of the leakage simulation pipeline according to the comparison result.
Optionally, the data processing system is configured to receive an infrasonic signal in the collected signal, and after the infrasonic signal is received, the data processing system determines that the magnitude of the flow signal corresponding to the inlet port is larger than that of the flow signal corresponding to the outlet port, and the magnitude of the negative pressure wave signals at the inlet port and the outlet port are both reduced, and then determines that the leakage simulation pipeline leaks; and the data processing system is used for receiving the infrasonic wave signals in the acquired signals, and after the infrasonic wave signals are received, determining that the flow signal size corresponding to the inlet end and the flow signal size corresponding to the outlet end do not change and that the negative pressure wave signals at the inlet end and the outlet end do not change or have the same change trend in the data processing system, and determining that the leakage simulation pipeline does not leak.
Optionally, the data processing system is further configured to receive an infrasonic signal in the collected signal, and determine a corrosion site of the corrosion simulation pipeline according to an echo signal of the infrasonic signal.
Optionally, the data processing system is further configured to determine a first position of the leakage simulation pipeline where the leakage occurs according to a time difference between transmission of the infrasonic wave signal and/or the negative pressure wave signal in the collected signal from the inlet end to the outlet end and a transmission speed of the infrasonic wave signal and/or the negative pressure wave signal in the leakage simulation pipeline.
Optionally, the data processing system is further configured to compare the first position with a second position, and adjust the monitoring accuracy of the data processing system according to the comparison result, where the second position is a position where the leakage actually occurs in the leakage simulation pipeline.
Optionally, the preset set of sensors comprises: detectors, pressure sensors, flow meters, and temperature sensors.
Optionally, the preset sensor set further comprises: the image acquisition device is arranged inside the corrosion simulation pipeline and used for acquiring the internal image of the corrosion simulation pipeline and sending the internal image to the data processing system, and the data processing system determines the corrosion degree of the corrosion simulation pipeline according to the internal image.
Optionally, the medium circulation system further comprises: the device comprises an air inlet pipeline, a liquid inlet pipeline, a gas-liquid mixing pipeline, a tank body, a heating device, a circulating pump and a gas-liquid mixer; the heating device is used for heating the tank body, and the tank body is connected with the circulating pump through the liquid inlet pipeline and is connected into the circulating pipeline; the gas-liquid mixer is arranged at the intersection of the gas inlet pipeline and the liquid inlet pipeline and is connected to the circulating pipeline through the gas-liquid mixing pipeline.
According to another aspect of the embodiments of the present application, there is also provided a method for monitoring an operating state of a pipeline, including: receiving acquisition signals acquired by each sensor in a preset sensing set; generating a control instruction according to the acquired signal, wherein the control instruction is used for controlling the running state of the corrosion simulation pipeline and/or the leakage simulation pipeline so as to simulate and measure different corrosion and/or leakage conditions; the corrosion simulation pipeline and the leakage simulation pipeline are connected in parallel to a circulation pipeline, and the inlet end and the outlet end of the circulation pipeline are respectively provided with a preset sensor set for acquiring acquisition signals of various types.
Optionally, the corrosion simulation pipe and the leakage simulation pipe are connected in parallel to a circulation line, comprising: the corrosion simulation pipeline and the leakage simulation pipeline are connected in parallel to the circulating pipeline through a three-way valve, wherein the leakage simulation pipeline is at least provided with a group of electromagnetic valves and leakage holes corresponding to the electromagnetic valves.
According to another aspect of the embodiments of the present application, there is also provided a non-volatile storage medium, where the non-volatile storage medium includes a stored program, and where the program is executed to control a device in which the non-volatile storage medium is located to perform any one of the monitoring methods for the running state of the pipeline.
According to another aspect of the embodiments of the present application, there is also provided a processor, configured to run a program, where the program executes any one of the methods for monitoring the running state of the pipeline when running.
In the embodiment of the application, a leakage and corrosion condition is simulated based on signals acquired by various sensors, and the medium circulating system at least comprises a circulating pipeline, wherein the inlet end and the outlet end of the circulating pipeline are respectively provided with a preset sensor set for acquiring various types of acquired signals; the corrosion simulation pipeline and the leakage simulation pipeline are connected in parallel to the circulating pipeline and are provided with communication modules at least for receiving control signals of the data processing system, wherein the corrosion simulation pipeline is a physical pipeline for detecting a corrosion state, and the leakage simulation pipeline is a physical pipeline for detecting a leakage state; a data processing system for receiving and processing the collected signals collected by each sensor in the preset sensor set, generates a control instruction, sends the control instruction to the corrosion simulation pipeline and the leakage simulation pipeline through the communication module, controls the running states of the corrosion simulation pipeline and the leakage simulation pipeline, so as to simulate and measure different corrosion and/or leakage conditions, achieve the purpose of analyzing the corrosion and leakage conditions of the pipeline based on the collected signals collected by each sensor in the preset sensor set, thereby realizing the technical effects of automatically analyzing the leakage and corrosion conditions of the pipeline based on the data processing system, avoiding adopting a manual mode to carry out the on-site detection of the abnormal conditions of the pipeline, and further solves the technical problems of long time consumption, low efficiency and inaccurate detection result caused by adopting a manual detection mode in the related technology.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic structural diagram of an alternative gathering pipeline corrosion leakage experimental system according to an embodiment of the application;
FIG. 2 is a schematic view of an alternative pipeline corrosion and leak detection data collection process according to an embodiment of the present application;
FIG. 3 is a schematic view of an alternative pipeline corrosion and leak detection data analysis flow according to an embodiment of the present application;
FIG. 4 is a schematic flow chart illustrating an alternative method for monitoring the operational status of a pipeline according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of an alternative pipeline operating condition monitoring device according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In accordance with an embodiment of the present application, there is provided an embodiment of a gathering and transportation pipeline corrosion leakage experimental system, it should be noted that the steps illustrated in the flowchart of the drawings may be executed in a computer system such as a set of computer executable instructions, and that while a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be executed in an order different than that illustrated herein.
Fig. 1 is a system for testing corrosion leakage of a gathering and transportation pipeline according to an embodiment of the present application, as shown in fig. 1, the system includes:
the medium circulation system 10, wherein the medium circulation system 10 at least includes a circulation pipeline 100, wherein the inlet end and the outlet end of the circulation pipeline 100 are respectively provided with a preset sensor 60 set for acquiring multiple types of acquisition signals;
the corrosion simulation pipeline 20 and the leakage simulation pipeline 30 are connected in parallel to the circulation pipeline 100, and the corrosion simulation pipeline 20 and the leakage simulation pipeline 30 are both provided with a communication module 40 for at least receiving a control signal of the data processing system 50, wherein the corrosion simulation pipeline 20 is a physical pipeline for detecting a corrosion state, and the leakage simulation pipeline 30 is a physical pipeline for detecting a leakage state;
and the data processing system 50 is used for receiving and processing the acquisition signals acquired by each sensor in the preset sensor 60 set, generating a control instruction, sending the control instruction to the corrosion simulation pipeline 20 and the leakage simulation pipeline 30 through the communication module 40, and controlling the running states of the corrosion simulation pipeline 20 and the leakage simulation pipeline 30 so as to simulate and measure different corrosion and/or leakage conditions.
In the gathering and transportation pipeline corrosion leakage experiment system, a medium circulating system 10, wherein the medium circulating system 10 at least comprises a circulating pipeline 100, and a preset sensor 60 set for acquiring various types of acquisition signals is respectively arranged at an inlet end and an outlet end of the circulating pipeline 100; the corrosion simulation pipeline 20 and the leakage simulation pipeline 30 are connected in parallel to the circulation pipeline 100, and the corrosion simulation pipeline 20 and the leakage simulation pipeline 30 are both provided with a communication module 40 for at least receiving a control signal of the data processing system 50, wherein the corrosion simulation pipeline 20 is a physical pipeline for detecting a corrosion state, and the leakage simulation pipeline 30 is a physical pipeline for detecting a leakage state; a data processing system 50, the data processing system 50 is used for receiving and processing the collected signals collected by each sensor in the preset sensor 60 set, generates a control instruction, sends the control instruction to the corrosion simulation pipeline 20 and the leakage simulation pipeline 30 through the communication module 40, controls the operation state of the corrosion simulation pipeline 20 and the leakage simulation pipeline 30, so as to simulate and measure different corrosion and/or leakage conditions, achieve the purpose of analyzing the corrosion and leakage conditions of the pipeline based on the collected signals collected by each sensor in the preset sensor set, thereby realizing the technical effects of automatically analyzing the leakage and corrosion conditions of the pipeline based on the data processing system, avoiding adopting a manual mode to carry out the on-site detection of the abnormal conditions of the pipeline, and further solves the technical problems of long time consumption, low efficiency and inaccurate detection result caused by adopting a manual detection mode in the related technology.
In some optional embodiments of the present application, the corrosion simulation pipe 20 and the leakage simulation pipe 30 are connected in parallel to the circulation line 100 by the three-way valve 70, wherein the leakage simulation pipe 30 is provided with at least one set of solenoid valves 300 and leakage holes 302 corresponding to the solenoid valves 300.
Optionally, the solenoid valve 300 is connected to the communication module 40, and configured to receive a control signal from the data processing system 50 through the communication module 40, and control the opening of the leakage hole 302 and the leakage duration of the leakage hole 302 through a processor corresponding to the solenoid valve 300, so as to simulate different leakage conditions, for example, when the opening of the leakage hole 302 is adjusted to be larger, the leakage duration may be set for a longer time, that is, a situation with larger leakage may be simulated.
It should be noted that the leakage hole 302 may be a leakage hole with an adjustable notch shape and size, and the leakage hole 302 is configured to receive a control signal of the data processing system 50 through the communication module 40, and adjust the notch shape and/or size of the leakage hole through a processor corresponding to the leakage hole 302, so as to simulate different leakage conditions, where the notch shape is a shape simulated according to a shape of a notch when leakage actually occurs, and it should be noted that the notch shape includes, but is not limited to: triangular, circular, rectangular, trapezoidal and various irregular images to simulate the shape of the gap when the pipe leaks under various conditions.
In some alternative embodiments of the present application, the leak simulation conduit 30 is provided with a plurality of leak pipe pressure sensors 304, and the leak pipe pressure sensors 304 are used for detecting the pressure magnitude of the leak simulation conduit 30.
In some alternative embodiments of the present application, the data processing system 50 is configured to receive corresponding acquisition signals from the inlet and outlet ends of the circulation pipeline 100; and comparing the magnitude of the acquired signals at the inlet end and the outlet end, and determining the leakage condition of the leakage simulation pipeline according to the comparison result.
In some embodiments of the present application, the data processing system 50 is configured to receive an infrasonic signal in the collected signal, and after the infrasonic signal is received, the data processing system 50 determines that a magnitude of a flow signal corresponding to the inlet port is greater than a magnitude of a flow signal corresponding to the outlet port, and negative pressure wave signals at the inlet port and the outlet port are both reduced, and then determines that the leakage simulation pipeline leaks; and the data processing system 50 is configured to receive the infrasonic wave signals in the acquired signals, and after receiving the infrasonic wave signals, determine that the magnitude of the flow signal corresponding to the inlet end and the magnitude of the flow signal corresponding to the outlet end do not change and that the negative pressure wave signals at the inlet end and the outlet end do not change or have the same change trend, determine that the leakage simulation pipeline does not leak.
In some optional embodiments of the present application, the data processing system 50 is further configured to receive an infrasonic signal from the collected signal, and determine a corrosion site of the corrosion-simulated pipe 20 according to an echo signal of the infrasonic signal.
In some optional embodiments of the present application, the data processing system 50 is further configured to determine a first position of the leak in the leak simulation pipeline 30 according to a time difference between transmission of the infrasonic signal and/or the negative pressure signal in the collected signal from the inlet end to the outlet end and a transmission speed of the infrasonic signal and/or the negative pressure signal in the leak simulation pipeline 30, for example, according to a constant speed of the infrasonic signal generated at the leak point in the pipeline propagating along the pipeline to the inlet end and the outlet end, and according to the propagation time difference, a position of the leak point away from the inlet end can be located, for example, by the following formula: l 1 =1/2×[L+Δt×v];
Wherein l 1 In order to locate the distance from the leakage point to the inlet end, L is the total length of the pipeline, v is the propagation velocity of infrasonic wave, and delta t is t 1 -t 2 The time difference of receiving data signals for the inlet and outlet acoustic wave sensors.
In some optional embodiments of the present application, the data processing system 50 is further configured to compare the first position with a second position, and adjust the monitoring accuracy of the data processing system 50 according to the comparison result, where the second position is a position where a leakage actually occurs in the leakage simulation pipeline 30, for example, if the leakage occurs in the leakage hole a (at the first position) but actually occurs in the leakage hole B (at the second position), the data processing system may adjust its own processing algorithm according to a position difference between the leakage hole a and the leakage hole B according to analysis and display of the collected signals, so as to further improve the monitoring accuracy.
Specifically, the above determination process may be implemented by the following method:
step 1: the method comprises the steps of carrying out pipeline corrosion and leakage monitoring experiments by taking water as a medium, firstly ensuring that the whole experiment platform is intact, opening a three-way valve and a three-way valve until a leakage simulation pipeline is unobstructed and sealed, starting a central control computer (namely a data processing system), and opening control software to carry out online monitoring and data acquisition, analysis and identification.
Step 2: after a proper amount of water is stored in the tank body, the circulating pump is started, the centrifugal water pump is set to a certain rotating speed value (frequency value), the water flow in the corresponding pipeline is kept to be constant, the tank body heater is started, and a temperature value is set, so that the inside of the pipeline of the experiment platform is filled with circulating water.
And 3, step 3: the system comprises a liquid flow meter at the inlet end of a circulating pipeline, two detectors, a pressure sensor, a temperature sensor, a flow meter at the outlet end of the pipeline, the two detectors, the pressure sensor and the temperature sensor, wherein infrasonic wave signals, negative pressure wave signals, flow data and temperature data of the inlet end and the outlet end of the pipeline in a normal state are recorded by the two detectors, the pressure sensor and the temperature sensor respectively, and the data signals are transmitted to a central control computer through a signal acquisition transmitter.
And 4, step 4: analyzing according to the acquired data signals, specifically: controlling the start and stop of the hearth heater by comparing and analyzing temperature values of the inlet end and the outlet end of the pipeline; comparing and analyzing data of the inlet end flowmeter, the outlet end flowmeter, the flowmeter and the detector information within a data signal acquisition precision error range, displaying an infrasonic wave signal by a central control computer, reducing the volume flow of the outlet end of the pipeline when the volume flow of the outlet end of the pipeline is smaller than the volume flow of the inlet end, and judging that the pipeline has a leakage condition; when the central control computer displays infrasonic wave signals and the volume flow of the inlet end and the outlet end and the negative pressure wave signals are not changed or are increased or decreased, the pipeline is judged to be in a normal condition.
The method comprises the steps that a central control computer opens a standard leakage hole electromagnetic ball valve of a pipeline, the leakage condition of the pipeline is simulated, a leakage hole with a certain size is selected, the leakage duration time is 10 minutes, signals and data of a liquid flowmeter at the inlet end, a detector, a pressure sensor and a temperature sensor as well as signals and data of a flowmeter, a detector, a pressure sensor and a temperature sensor at the outlet end of the pipeline in the time are read on software, the time of signal transmission to the inlet end and the outlet end of the pipeline, the signal transmission speed in the pipeline and analysis spectrum signals are measured through the sensors, and the position of a leakage point of the pipeline is calculated through an infrasonic wave or negative pressure wave time difference positioning method.
Taking an infrasonic wave monitoring method as an example to locate the pipeline leakage point, the method specifically comprises the following steps: based on the fact that the infrasonic signal generated at the leakage point in the pipeline propagates along the pipeline at a constant speed to the inlet end and the outlet end, the position of the leakage point from the inlet end can be located according to the propagation time difference.
Equation 1: l 1 =1/2×[L+Δt×v]
Wherein l 1 In order to locate the distance from the leakage point to the inlet end, L is the total length of the pipeline, v is the propagation velocity of infrasonic wave, and delta t is t 1 -t 2 The time difference of receiving data signals for the inlet and outlet acoustic wave sensors.
Taking a negative pressure wave monitoring method as an example to locate the leakage point of the pipeline, the method specifically comprises the following steps: the negative pressure wave generated at the leakage point in the pipeline is transmitted to the inlet end and the outlet end by taking the leakage point as a center, and the position of the pipeline leakage point can be calculated by measuring the time difference of the negative pressure wave reaching the detector at the inlet end and the detector at the outlet end of the pipeline and the transmission speed of the negative pressure wave in the pipeline.
Equation 2: l is 1 =1/2×[L+ΔT×V]
Wherein L is 1 In order to locate the distance from the leakage point to the inlet end, L is the total length of the pipeline, V is the propagation speed of the negative pressure wave in the pipeline medium, and delta T is T 1 -T 2 The time difference of the data signal received for the entrance detector (121) and the exit detector (132).
And comparing the actually measured data of the position of the leakage point with the actual real data, and further calculating the monitoring precision of the experiment platform.
A standard leakage hole with a certain size is selected, the pipeline electromagnetic ball valve is opened by a central control computer, the leakage duration is 5 minutes, the leakage conditions of different positions of the pipeline are simulated, and the process is repeated for detection.
After the simulation leakage experiment is finished, the valve of the air inlet pipeline can be opened to carry out corrosion and leakage monitoring experiments on the air medium after the air-liquid mixed medium or air-air is blown to drain water in the pipeline, the temperature of the medium in the circulating pipeline is changed, the hole shape, the opening degree, the leakage duration and the leakage point position of the standard leakage hole are changed to simulate different working conditions, and the experiment steps are repeated.
And opening the three-way valve and the three-way valve to switch the pipeline to the leakage simulation pipeline, keeping the corrosion simulation pipeline smooth, and monitoring an echo signal caused by the structural defect of the corrosion part by using the information of the detector and the detector so as to monitor the corrosion. The above process is repeated for detection, so that different conditions can be simulated.
It should be noted that the preset sensor set 60 includes: the sensor comprises a detector 602, a pressure sensor 604, a flow meter 608 and a temperature sensor 610, wherein the sensors are respectively used for acquiring infrasonic wave signals, negative pressure wave signals, flow and temperature data of a pipeline inlet section.
In some optional embodiments of the present application, the preset sensor set 60 further includes: the image acquisition device 612 is arranged inside the corrosion simulation pipeline 20, the image acquisition device 612 is used for acquiring an internal image of the corrosion simulation pipeline 20 and sending the internal image to the data processing system 50, and the data processing system 50 determines the corrosion degree of the corrosion simulation pipeline 20 according to the internal image.
In some optional embodiments of the present application, the media circulation system 10 further comprises: an air inlet pipeline 102, an air inlet pipeline 104, an air-liquid mixing pipeline 106, a tank 108, a heating device (heater) 110, a circulating pump 112 and an air-liquid mixer 114; the liquid inlet pipeline 104 is connected with the tank 108, the heating device 110 is used for heating the tank 108, and the tank 108 is connected with the circulating pump 112 through the liquid inlet pipeline 104 and is connected to the circulating pipeline 100; the gas-liquid mixer 114 is disposed at the junction of the gas inlet pipe 102 and the gas inlet pipe 104, and is connected to the circulation line 100 through the gas-liquid mixing pipe 106.
Fig. 2 is a schematic view of a pipeline corrosion and leakage detection data acquisition process provided in the embodiment of the present application, and as shown in fig. 2, the data acquisition mainly includes control and signal acquisition, and the main principle is to control related components according to the acquired signals, and the specific control process is described in the above embodiment and is not described herein again.
Fig. 3 is a schematic view illustrating an analysis process of pipeline corrosion and leakage detection data provided in an embodiment of the present application, and as shown in fig. 3, the analysis process mainly includes four parts, where the first part is used for collecting signals, the second part is used for collecting signals, and the third part is used for completing recognition, calculation and analysis according to the collected signals, and performing feedback and early warning according to actual time conditions, for example, when an experimental system detects that a leakage hole leaks, an alarm can be given in a voice prompt manner.
Fig. 4 is a monitoring method for an operation state of a pipeline according to an embodiment of the present application, as shown in fig. 4, the monitoring method includes the following steps:
s102, receiving acquisition signals acquired by each sensor in a preset sensing set;
and S104, generating a control instruction according to the acquired signals, wherein the control instruction is used for controlling the running state of the corrosion simulation pipeline and/or the leakage simulation pipeline so as to simulate and measure different corrosion and/or leakage conditions.
It should be noted that the corrosion simulation pipeline and the leakage simulation pipeline are connected in parallel to a circulation pipeline, and a preset sensor set is respectively arranged at the inlet end and the outlet end of the circulation pipeline for acquiring acquisition signals of various types.
In the monitoring method, firstly, collected signals collected by each sensor in a preset sensing set can be received, and then a control instruction is generated according to the collected signals, wherein the control instruction is used for controlling the running state of a corrosion simulation pipeline and/or a leakage simulation pipeline and is used for simulating and measuring different corrosion and/or leakage conditions, so that the purpose of analyzing the corrosion and leakage conditions of the pipeline based on the collected signals collected by each sensor in the preset sensor set is achieved, the pipeline leakage and corrosion conditions are automatically analyzed based on a data processing system, the technical effect of detecting the abnormal conditions of the pipeline on site in a manual mode is avoided, and the technical problems of long consumed time, low efficiency and inaccurate detection result caused by the adoption of the manual detection mode in the related technology are solved.
Further, the corrosion simulation pipeline and the leakage simulation pipeline are connected in parallel to the circulation pipeline, and the corrosion simulation pipeline and the leakage simulation pipeline comprise: the corrosion simulation pipeline and the leakage simulation pipeline are connected into the circulating pipeline in parallel through a three-way valve, wherein the leakage simulation pipeline is at least provided with a group of electromagnetic valves and leakage holes corresponding to the electromagnetic valves.
Fig. 5 is a monitoring device for monitoring an operation state of a pipeline according to an embodiment of the present application, and as shown in fig. 5, the monitoring method includes the following steps:
the receiving module 40 is configured to receive an acquisition signal acquired by each sensor in a preset sensing set;
the control module 42 is used for generating a control instruction according to the collected signal, wherein the control instruction is used for controlling the running state of the corrosion simulation pipeline and/or the leakage simulation pipeline so as to simulate and measure different corrosion and/or leakage conditions; it should be noted that the corrosion simulation pipeline and the leakage simulation pipeline are connected in parallel to a circulation pipeline, and a preset sensor set is respectively arranged at the inlet end and the outlet end of the circulation pipeline for acquiring acquisition signals of various types.
In the monitoring device, a receiving module 40 is used for receiving acquisition signals acquired by each sensor in a preset sensing set; the control module 42 is used for generating a control instruction according to the collected signal, wherein the control instruction is used for controlling the running state of the corrosion simulation pipeline and/or the leakage simulation pipeline so as to simulate and measure different corrosion and/or leakage conditions; it should be noted that the corrosion simulation pipeline and the leakage simulation pipeline are connected in parallel to the circulation pipeline, the inlet end and the outlet end of the circulation pipeline are respectively provided with a preset sensor set for acquiring acquisition signals of various types, and the purpose of analyzing the corrosion and leakage conditions of the pipeline based on the acquisition signals acquired by the sensors in the preset sensor set is achieved, so that the automatic analysis of the leakage and corrosion conditions of the pipeline based on a data processing system is realized, the technical effect of manually detecting the abnormal conditions of the pipeline on site is avoided, and the technical problems of long time consumption, low efficiency and inaccurate detection results caused by the manual detection mode in the related art are solved.
According to another aspect of the embodiments of the present application, there is also provided a non-volatile storage medium, where the non-volatile storage medium includes a stored program, and where the program is executed to control a device in which the non-volatile storage medium is located to perform any one of the monitoring methods for the running state of the pipeline.
Specifically, the storage medium is used for storing program instructions for executing the following functions, and the following functions are realized:
receiving acquisition signals acquired by each sensor in a preset sensing set; generating a control instruction according to the acquired signal, wherein the control instruction is used for controlling the running state of the corrosion simulation pipeline and/or the leakage simulation pipeline so as to simulate and measure different corrosion and/or leakage conditions; the corrosion simulation pipeline and the leakage simulation pipeline are connected in parallel to a circulation pipeline, and the inlet end and the outlet end of the circulation pipeline are respectively provided with a preset sensor set for acquiring acquisition signals of various types.
According to another aspect of the embodiments of the present application, there is also provided a processor, configured to run a program, where the program executes any one of the methods for monitoring the running state of the pipeline when running.
Specifically, the processor is configured to call a program instruction in the memory, and implement the following functions: receiving acquisition signals acquired by each sensor in a preset sensing set; generating a control instruction according to the acquired signal, wherein the control instruction is used for controlling the running state of the corrosion simulation pipeline and/or the leakage simulation pipeline so as to simulate and measure different corrosion and/or leakage conditions; the corrosion simulation pipeline and the leakage simulation pipeline are connected in parallel to a circulation pipeline, and the inlet end and the outlet end of the circulation pipeline are respectively provided with a preset sensor set for acquiring acquisition signals of various types.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present application, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims (16)

1. The utility model provides a gathering pipeline corrodes leakage experiment system which characterized in that includes:
the medium circulation system at least comprises a circulation pipeline, wherein a preset sensor set for acquiring multiple types of acquisition signals is respectively arranged at an inlet end and an outlet end of the circulation pipeline;
the corrosion simulation pipeline and the leakage simulation pipeline are connected in parallel to the circulating pipeline and are provided with communication modules at least for receiving control signals of a data processing system, wherein the corrosion simulation pipeline is a physical pipeline for detecting a corrosion state, and the leakage simulation pipeline is a physical pipeline for detecting a leakage state;
and the data processing system is used for receiving and processing the acquisition signals acquired by each sensor in the preset sensor set, generating a control instruction, sending the control instruction to the corrosion simulation pipeline and the leakage simulation pipeline through the communication module, and controlling the running states of the corrosion simulation pipeline and the leakage simulation pipeline so as to simulate and measure different corrosion and/or leakage conditions.
2. The system of claim 1, wherein the corrosion simulation pipeline and the leakage simulation pipeline are connected in parallel to the circulation pipeline through a three-way valve, wherein the leakage simulation pipeline is provided with at least one set of electromagnetic valves and leakage holes corresponding to the electromagnetic valves.
3. The system of claim 2, wherein the solenoid valve is connected to the communication module, and configured to receive a control signal from a data processing system via the communication module, and control the opening of the leakage hole and the leakage duration of the leakage hole via a processor corresponding to the solenoid valve, so as to simulate different leakage conditions.
4. The system of claim 2, wherein the leakage hole is a leakage hole with adjustable notch shape and size, and the leakage hole is used for receiving a control signal of a data processing system through the communication module and adjusting the notch shape and/or size of the leakage hole through a processor corresponding to the leakage hole so as to simulate different leakage conditions, wherein the notch shape is a shape simulated according to the shape of the notch when leakage actually occurs.
5. The system of claim 1, comprising:
the data processing system is used for receiving corresponding acquisition signals from the inlet end and the outlet end of the circulating pipeline respectively; and comparing the magnitude of the acquired signals of the inlet end and the outlet end, and determining the leakage condition of the leakage simulation pipeline according to the comparison result.
6. The system of claim 5, comprising:
the data processing system is used for receiving the infrasonic wave signals in the acquired signals, and after the infrasonic wave signals are received, the data processing system determines that the flow signal corresponding to the inlet end is larger than the flow signal corresponding to the outlet end, and the negative pressure wave signals of the inlet end and the outlet end are reduced, so that the leakage of the leakage simulation pipeline is determined;
and the data processing system is used for receiving the infrasonic wave signals in the acquired signals, and after the infrasonic wave signals are received, determining that the flow signal size corresponding to the inlet end and the flow signal size corresponding to the outlet end do not change and that the negative pressure wave signals of the inlet end and the outlet end do not change or have the same change trend, and determining that the leakage simulation pipeline does not leak.
7. The system of claim 5, comprising:
and the data processing system is also used for receiving the infrasonic wave signals in the acquired signals and determining the corrosion part of the corrosion simulation pipeline according to the echo signals of the infrasonic wave signals.
8. The system of claim 5, comprising:
the data processing system is further used for determining a first position of the leakage simulation pipeline where leakage occurs according to the time difference of transmission of the infrasonic wave signal and/or the negative pressure wave signal in the collected signals from the inlet end to the outlet end and the transmission speed of the infrasonic wave and/or the negative pressure wave signal in the leakage simulation pipeline.
9. The system of claim 8, comprising:
and the data processing system is also used for comparing the first position with a second position and adjusting the monitoring precision of the data processing system according to the comparison result, wherein the second position is the position where the leakage actually occurs in the leakage simulation pipeline.
10. The system of claim 1, wherein the preset set of sensors comprises: detectors, pressure sensors, flow meters, and temperature sensors.
11. The system of claim 1, wherein the preset set of sensors further comprises: the image acquisition device is arranged inside the corrosion simulation pipeline and used for acquiring the internal image of the corrosion simulation pipeline and sending the internal image to the data processing system, and the data processing system determines the corrosion degree of the corrosion simulation pipeline according to the internal image.
12. The system of claim 1, wherein the media circulation system further comprises:
the device comprises an air inlet pipeline, a liquid inlet pipeline, a gas-liquid mixing pipeline, a tank body, a heating device, a circulating pump and a gas-liquid mixer;
the liquid inlet pipeline is connected with the tank body, the heating device is used for heating the tank body, and the tank body is connected with the circulating pump through the liquid inlet pipeline and is connected into the circulating pipeline;
the gas-liquid mixer is arranged at the intersection of the gas inlet pipeline and the liquid inlet pipeline and is connected to the circulating pipeline through the gas-liquid mixing pipeline.
13. A method for monitoring the running state of a pipeline is characterized by comprising the following steps:
receiving acquisition signals acquired by each sensor in a preset sensing set;
generating a control instruction according to the acquisition signal, wherein the control instruction is used for controlling the running state of the corrosion simulation pipeline and/or the leakage simulation pipeline so as to simulate and measure different corrosion and/or leakage conditions;
the corrosion simulation pipeline and the leakage simulation pipeline are connected in parallel to be connected into a circulating pipeline, and the inlet end and the outlet end of the circulating pipeline are respectively provided with the preset sensor set for acquiring the acquisition signals of all types.
14. The method of claim 13, wherein the corrosion and leakage simulating pipes are connected in parallel into a circulation line, comprising:
the corrosion simulation pipeline and the leakage simulation pipeline are connected into the circulating pipeline in parallel through a three-way valve, wherein the leakage simulation pipeline is at least provided with a group of electromagnetic valves and leakage holes corresponding to the electromagnetic valves.
15. A non-volatile storage medium, comprising a stored program, wherein the program, when running, controls a device in which the non-volatile storage medium is located to execute the method for monitoring the running state of the pipeline according to any one of claims 13 to 14.
16. A processor, for running a program, wherein the program is run to perform the method for monitoring the running status of the pipeline according to any one of claims 13 to 14.
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