Buried pipeline data acquisition system

By installing current and voltage acquisition devices on buried pipelines and combining them with soil parameter monitoring, the automated acquisition and storage of cathodic protection data for buried pipelines has been achieved. This solves the problems of inaccurate manual measurement and inefficient data management, and improves the level of intelligent data analysis and pipeline safety management.

CN223784379UActive Publication Date: 2026-01-09PETROCHINA CO LTD
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Patent Information

Application Number
CN202423023541.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2026-01-09
Estimated Expiration
2034-12-06

AI Technical Summary

Technical Problem

In existing technologies, the acquisition of cathodic protection data for buried pipelines mainly relies on manual measurement, which suffers from problems such as inaccurate measurement, cumbersome data recording, and low management and query efficiency, making it difficult to meet the needs of data analysis and utilization.

Method used

An automated buried pipeline data acquisition system is adopted, including current acquisition devices and voltage acquisition devices, to monitor and store the current and voltage data of buried pipelines in real time. The system enables automatic storage and background data retrieval through a data storage device. Combined with soil parameter acquisition and data analysis, it supports real-time data processing and early warning functions.

Benefits of technology

It enables accurate, real-time acquisition and automatic storage of cathodic protection data for buried pipelines, improves data management and query efficiency, supports intelligent data analysis and fault early warning, and enhances pipeline safety and management efficiency.

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Abstract

The utility model discloses a buried pipeline data acquisition system, and relates to the technical field of pipeline detection. The buried pipeline data acquisition system comprises a data acquisition device and a data storage device, and the data acquisition device and the data storage device are in communication connection. The data acquisition device is connected with the buried pipeline and is used for continuously acquiring cathode protection data of the buried pipeline, and the data storage device is used for storing the acquired cathode protection data. Real-time acquisition and automatic storage of data are realized, and the problems of inaccurate measurement, time and labor waste, tedious data acquisition and recording and the like in data monitoring of the cathode protection system caused by manual detection are solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline detection technical field especially relates to a buried pipeline data acquisition system. BACKGROUND

[0002] Most buried pipelines are metal pipelines, such as various oil pipelines, gas pipelines and water pipelines. In order to improve the corrosion resistance of metal pipelines and prolong the service life, the outer layer of metal pipelines generally has a corrosion protection layer, and cathodic protection measures are also used to further improve the corrosion protection capability. Cathodic protection data plays an important role in the design and construction of cathodic protection circuits, as well as the subsequent system operation, maintenance and other work.

[0003] However, the current way of obtaining cathodic protection data is almost through manual field measurement, which not only is time-consuming and laborious, but also has many problems such as inaccurate pipeline potential measurement, cumbersome data recording method, low data management and query efficiency, which is not conducive to subsequent data analysis and data utilization. UTILITY MODEL CONTENT

[0004] The utility model provides a buried pipeline data acquisition system, which can obtain buried pipeline cathodic protection data in real time and accurately, realize real-time data acquisition and automatic storage, and does not require manual intervention in the process, solving the problems of existing methods in terms of cathodic protection data accuracy, cumbersome acquisition and recording, and low data management and query efficiency.

[0005] The utility model realizes the following technical scheme:

[0006] A buried pipeline data acquisition system is provided, which comprises:

[0007] A data acquisition device, comprising a current acquisition device and a voltage acquisition device connected to the buried pipeline, the current acquisition device being used to acquire current data of the buried pipeline, and the voltage acquisition device being used to acquire voltage data of the buried pipeline;

[0008] A data storage device, in communication connection with the data acquisition device, used to receive and store the acquired data.

[0009] The utility model uses automatic acquisition means, installs the current acquisition device and the voltage acquisition device in the buried pipeline, can continuously monitor the buried pipeline in use without interruption, acquires the data change condition of the buried pipeline in the working process, and communicates the data acquisition device with the data storage device, automatically saves the acquired data, the background can directly retrieve and analyze the data, solves the problems of manual measurement being time-consuming and laborious, inaccurate measurement, cumbersome data recording, and low data management and query efficiency.

[0010] As a preferred embodiment, the current collecting device comprises a direct current collecting device for collecting direct current values of the buried pipeline and / or an alternating current collecting device for collecting alternating current values of the buried pipeline.

[0011] As a preferred embodiment, the direct current collecting device is connected to the buried pipeline in series with an inductor.

[0012] As a preferred embodiment, the alternating current collecting device is connected to the buried pipeline in parallel with a capacitor.

[0013] As a preferred embodiment, the data collecting device further comprises a soil layer collector for collecting soil layer parameters.

[0014] As a preferred embodiment, the soil layer collector comprises a pH sensor, a humidity sensor and a temperature sensor, the pH sensor being used to collect the pH value of the soil layer, the humidity sensor being used to collect the humidity of the soil layer, and the temperature sensor being used to collect the temperature of the soil layer.

[0015] As a preferred embodiment, the data analysis device is further comprised, which is in communication connection with the data storage device and is used to analyze the collected data.

[0016] As a preferred embodiment, the early warning device is further comprised, which is in communication connection with the data analysis device and the terminal and is used to receive the analysis results of the data analysis device and send early warning information to the terminal.

[0017] As a preferred embodiment, the terminal is a PC terminal, a mobile phone or a tablet computer.

[0018] As a preferred embodiment, the data processing device is further comprised, which is in communication connection with the data collecting device and the data storage device and is used to receive and process the collected signals of the data collecting device; the data storage device is used to store the collected information processed by the data processing device.

[0019] As a preferred embodiment, the current collecting device and the voltage collecting device are respectively provided with multiple ones, and the multiple current collecting devices and voltage collecting devices are connected to different positions of the buried pipeline.

[0020] As a preferred embodiment, the buried pipeline is a metal pipeline with cathodic protection measures.

[0021] As a preferred embodiment, the buried pipeline comprises an oil pipeline, a gas pipeline and a water pipeline.

[0022] Compared with the prior art, the utility model has the following advantages and beneficial effects: through installing current collection device and voltage collection device in the buried pipeline, realize the continuous monitoring of buried pipeline cathodic protection data, through data collection device and data storage device communication connection, realize the automatic storage of collection data. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the exemplary embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, it should be understood that the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.In the drawings:

[0024] Figure 1 The block diagram of the buried pipeline data acquisition system of the utility model embodiment is shown;

[0025] Figure 2 The block diagram of another buried pipeline data acquisition system of the utility model embodiment is shown.

[0026] The signs and their explanations are as follows:

[0027] 100-data collection device, 200-data storage device, 300-data processing device, 400-data analysis device, 500-warning device, 600-terminal, 101-current collection device, 102-voltage collection device, 103-soil layer collection instrument. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further detailed to the utility model by combining with the embodiments and drawings, the illustrative embodiment of the utility model and its explanation are only used to explain the utility model, and not as the limitation to the utility model.

[0029] It should be noted that the specification and claims of the utility model and the above-mentioned drawings the terms "include" and "have" and their any deformation, it is intended to cover the non-exclusive inclusion, for example, the process, method, system, product or equipment containing a series of steps or units does not have to be limited to or other steps or units inherent in the equipment.

[0030] The terminology used in the various embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of the present application belong. The terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0031] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details. In other instances, well-known structures, circuits, materials or processes have not been described in detail in order to avoid obscuring aspects of the present application.

[0032] The utility model provides a kind of buried pipeline data acquisition system, it is applied to the automatic continuous acquisition and storage of buried pipeline cathodic protection data, solve pipeline potential measurement inaccuracy, data record mode is tedious, data management and query efficiency is low and many problems.

[0033] Figure 1 As shown is a block diagram of a buried pipeline data acquisition system of the utility model embodiment, system includes at least one data acquisition device 100 and at least one data storage device 200, data acquisition device 100 and data storage device 200 are communicatively connected, wherein, one data acquisition device can be connected with one or more data storage devices, one data storage device can also be connected with one or more data acquisition devices. The communication connection can be wireless connection or wired connection.

[0034] Data acquisition device is used to acquire buried pipeline cathodic protection data, mainly current data and voltage data. Data acquisition device 100 includes current acquisition device 101 and voltage acquisition device 102, and current acquisition device 101 acquires current data, and voltage acquisition device 102 acquires voltage data. Among them, current acquisition device and voltage acquisition device all use existing current sensor and voltage sensor, such as ammeter or voltmeter etc. Current acquisition device and voltage acquisition device signal acquisition end are all connected with buried pipeline, and the wiring of measuring circuit uses conventional wiring mode in the art.

[0035] Data storage device 200 can use high-speed random access memory, or nonvolatile memory, for example, disk storage device, flash memory device, or other nonvolatile solid-state storage device.

[0036] Because the buried pipeline is not easy to measure when it is put into use, the artificial measurement method is time-consuming and laborious, and continuous monitoring data cannot be obtained, and continuous analysis data is lacking for cathodic protection design, therefore, the utility model discloses a data acquisition device is connected with buried pipeline through being set, data acquisition device can be connected with buried pipeline and is encapsulated and is buried in the ground together, and the uninterrupted, continuous data acquisition is carried out, and the collected data is automatically stored through data storage device.According to the time of saving data of data storage device, data can be conveniently called back and inquired.

[0037] In a preferred embodiment, the current acquisition device 101 is a direct current acquisition device or an alternating current acquisition device, or simultaneously includes a direct current acquisition device and an alternating current acquisition device. The direct current acquisition device adopts a direct current sensor for acquiring a direct current value, and the alternating current acquisition device adopts an alternating current sensor for acquiring an alternating current value. In addition, the direct current acquisition device and the alternating current acquisition device can both adopt a universal current sensor, such as a Hall current sensor, which can simultaneously monitor the alternating current and the direct current of the buried pipeline. The direct current acquisition unit and the alternating current acquisition unit preferably adopt an ACS172ELC-05B chip of the ACS712 chip series, which includes a current path circuit and a stable chopping type low bias Hall circuit.

[0038] In a preferred embodiment, the current acquisition device acquires not only the current value and the data, but also the energized potential, the de-energized potential, the natural potential, and the current density. Among them, the energized potential refers to the ground potential measured when the cathodic protection system is put into operation; the de-energized potential refers to the potential measured when the cathodic protection current is instantaneously interrupted (the potential reading does not include IR drop); the natural potential refers to the voltage between the double electric layer formed by the metal and the electrolyte (soil) cross section when the metal is placed in the electrolyte; and the current density refers to the electric quantity per unit area per unit time.

[0039] Further, the direct current acquisition device is connected with the buried pipeline in series with an inductor. The inductor element plays a role in stabilizing the current in the direct current circuit, making the measurement result more accurate. When the direct current passes through the inductor element, the inductor element will generate a magnetic field, and the change of the magnetic field will generate an induced electromotive force, thereby hindering the change of the current, thereby stabilizing the current.

[0040] Further, the alternating current acquisition device is connected with the buried pipeline in parallel with a capacitor. The parallel capacitor can play a role in filtering out direct current and retaining alternating current, and its main role in the circuit is filtering, which can block direct current components and only allow alternating current components to pass through, thereby acquiring alternating current data.

[0041] In a preferred embodiment, the buried pipeline data acquisition system further includes a data processing device 300, as shown inFigure 2 As shown, the data processing device 300 is in communication connection with the data acquisition device 100 and the data storage device 200. The data processing device 300 receives and processes the signals collected by the data acquisition device 100, and the data storage device 200 receives and stores the collected signals processed by the data processing device 300. The processing device can be a data conversion device, a filter, an amplifier, etc., or an integrated device integrating a filter and an amplifier. By performing digital conversion, filtering, and amplification on the electrical signals before storage, the quality of the collected data can be improved.

[0042] In a preferred embodiment, the data acquisition device 100 further comprises a soil layer acquisition instrument 103 for collecting soil layer parameters to obtain environmental parameters of the buried pipeline and collect comprehensive monitoring data. The soil layer parameters include, but are not limited to, the PH value, humidity, and temperature of the soil layer, such as the RS-WS-USB-TR-1 type USB soil parameter detector.

[0043] The soil layer acquisition instrument 103 comprises integrated PH sensors, humidity sensors, and temperature sensors, which collect the PH value, humidity, and temperature of the soil layer, respectively.

[0044] In a preferred embodiment, the buried pipeline data acquisition system further comprises a data analysis device 400 in communication connection with the data storage device 200 for analyzing the stored collected data. In addition, the buried pipeline data acquisition system can be in communication with existing data analysis systems, such as data centers, control centers, and geographic information systems, to provide the data stored in the data storage device 200 to the data analysis systems for backup and data analysis.

[0045] The buried pipeline data acquisition system of the present embodiment is based on a geographic information system (GIS) platform, uses a public wireless data communication method (GPRS) and a wired remote communication method as data transmission means, and establishes a monitoring system in cooperation with an auxiliary decision analysis function. Once the output voltage, current, protection potential signal, and power-off test remote control interface of the entire line of cathode protection stations are transmitted to the cathode protection monitoring system of the pipeline control center via Ethernet, the system will quickly handle various faults of the cathode protection station and adjust the operating parameters of the equipment as needed, thereby promoting the intelligent upgrading of the cathode protection system.

[0046] In a preferred embodiment, the buried pipeline data acquisition system further comprises a warning device 500, which is in communication connection with the data analysis device 400 and the terminal 600. The warning device receives the analysis result of the data analysis device, and sends a warning information to the terminal when the cathodic protection data collected by the data storage device 200 deviates from the preset value in the data analysis system. The terminal is the working terminal of the manager, which can be a PC terminal, a mobile phone or a tablet computer.

[0047] In a preferred embodiment, the current acquisition device 101 and the voltage acquisition device 102 are multiple respectively, and different circuit acquisition devices are arranged at different positions of the buried pipeline, and different voltage acquisition devices are arranged at different positions of the buried pipeline to monitor the cathodic protection data at different positions of the pipeline. One current acquisition device and one voltage acquisition device can be arranged at the same monitoring position, and the number of the current acquisition device and the voltage acquisition device is flexibly arranged according to the length of the monitored buried pipeline, and a suitable distance is arranged between adjacent current acquisition devices / voltage acquisition devices.

[0048] Further, the soil layer acquisition instrument 103 is also multiple, which is arranged at different buried pipelines. When the detected pipeline is long, the soil layer parameters of different pipeline sections can be different.

[0049] The buried pipeline is usually a metal pipeline, and a corrosion-resistant layer is coated on the outer side of the metal pipeline. In order to improve the corrosion resistance of the corrosion-resistant layer, a voltage is usually applied to the metal pipeline, so that the metal pipeline presents a negative potential to the ground, forming cathodic protection. The buried pipeline data acquisition system of the embodiment is applied to a metal buried pipeline with cathodic protection, and the buried pipeline data acquisition system supports the mode of uninterrupted continuous monitoring to obtain data. The data is analyzed by the data analysis system, and the data analysis system is in communication connection with the data storage device and the warning system. When the cathodic protection information collected by the data storage device deviates from the preset value in the data analysis system, the warning information is sent to the terminal through the warning system to remind the staff to eliminate the fault, so as to eliminate and alleviate the pipeline safety hidden danger, and play an active role in ensuring the long-term safe and reliable stable operation of the pipeline.

[0050] Further, the buried pipeline in the above embodiment includes an oil pipeline, a gas pipeline and a water pipeline.

[0051] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above description is only a specific embodiment of the utility model, and is not used to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A buried pipeline data acquisition system, characterized by, The application relates to a data acquisition device for buried pipelines. The data acquisition device comprises a current acquisition device connected with a buried pipeline, a voltage acquisition device connected with the buried pipeline and a soil layer acquisition instrument. The data storage device is connected with the data acquisition device and is used for receiving and storing the acquisition data.

2. The buried pipeline data collection system of claim 1, wherein, The current acquisition device comprises a direct current acquisition device and / or an alternating current acquisition device.

3. The buried conduit data collection system of claim 2, wherein, The direct current acquisition device is connected with the buried pipeline in series with an inductor.

4. The buried conduit data collection system of claim 2, wherein, The alternating current acquisition device is connected with the buried pipeline in parallel with a capacitor.

5. The buried conduit data collection system of claim 1, wherein, The soil layer acquisition instrument comprises a PH sensor, a humidity sensor and a temperature sensor.

6. The buried conduit data collection system of claim 1, wherein, The data analysis device is connected with the data storage device and is used for analyzing the stored acquisition data.

7. The buried pipeline data collection system of claim 6, wherein, The early warning device is connected with the data analysis device and a terminal and is used for receiving the analysis result of the data analysis device and sending early warning information to the terminal.

8. The buried pipeline data collection system of claim 7, wherein, The terminal is a PC terminal, a mobile phone or a tablet computer.

9. The buried conduit data collection system of claim 1, wherein, The data processing device is connected with the data acquisition device and the data storage device and is used for receiving and processing the acquisition signal of the data acquisition device.

10. The buried conduit data collection system of claim 1, wherein, The data storage device is used for storing the acquisition information processed by the data processing device.

11. The buried conduit data collection system of any one of claims 1-10, wherein, The buried pipeline is a metal pipeline with cathodic protection measures.

12. The buried pipeline data collection system of claim 11, wherein, The buried pipeline comprises an oil pipeline, a gas pipeline and a water pipeline.