WO2013033870A1 - Oil and gas pipeline cathodic protection parameter detection system - Google Patents
Oil and gas pipeline cathodic protection parameter detection system Download PDFInfo
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- WO2013033870A1 WO2013033870A1 PCT/CN2011/001535 CN2011001535W WO2013033870A1 WO 2013033870 A1 WO2013033870 A1 WO 2013033870A1 CN 2011001535 W CN2011001535 W CN 2011001535W WO 2013033870 A1 WO2013033870 A1 WO 2013033870A1
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- oil
- gas pipeline
- cathodic protection
- signal
- protection parameter
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/22—Monitoring arrangements therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/02—Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
- C23F2213/30—Anodic or cathodic protection specially adapted for a specific object
- C23F2213/32—Pipes
Definitions
- the present invention relates to a metal corrosion detecting system, and more particularly to a hydrocarbon gas pipeline cathodic protection parameter detecting system.
- the protection potential and the protection current density are the two main parameters used to judge whether the protected metal has reached full protection and to adjust and control the operation of the cathodic protection system.
- the correct selection and control of the main parameters of cathodic protection is to determine the protective effect.
- the essential the detection of cathodic protection parameters of oil and gas pipelines at home and abroad is basically the manual selection of periodic multi-meter multi-stage detection. It has a long duration, a large workload, a large investment, and some even need excavation detection, which cannot be discovered in time. The problem is that some oil and gas pipeline protection fails or is overprotected.
- the existing detection means can not continuously obtain the objective and true parameters of the whole process or a certain pipe section at the same time, and cannot meet the requirements of corrosion control.
- the continuous increase in social power consumption has become increasingly prominent.
- Real-time and accurate detection of the cathodic protection parameters of the oil and gas pipelines is a key measure to ensure the maximum effectiveness of the cathodic protection system and improve the service life of the oil and gas pipelines. It is necessary to establish a remote on-line detection system for the cathodic protection parameters of oil and gas pipelines. Summary of the invention
- the object of the present invention is to overcome the deficiencies in the prior art and provide a real-time and accurate automatic detection of a cathode protection parameter detection system for a gas pipeline.
- the object of the present invention is achieved by the following technical solutions, comprising more than one sensor combined as a signal acquisition unit for collecting the corresponding cathodic protection coefficient signal of the pipe segment and connecting with the cable, and the cable transmission signal is connected with the corresponding interface of the display device, and the display device will After the input signal is processed, a plurality of signal collection units are arranged along the pipeline, and respectively connected to the corresponding interface of the display through the cable, and the power supply system supplies power to the signal acquisition unit and the display device.
- the cathodic protection parameters of the oil and gas pipelines detected by the system truly reflect the working conditions of the pipeline at a certain distance at the same time, overcoming the parameters of the cathodic protection system of the oil and gas pipelines detected by the prior art for a long time only reflecting the working conditions of a certain point at a certain point, which is not only It provides scientific and feasible basis for adjusting and controlling the cathodic protection system of oil and gas pipelines, and plays an important role in the detection and location of oil and gas pipeline anti-corrosion layer defects and damage points.
- the existing oil and gas pipeline cathodic protection system can automatically adjust the injection and discharge operations in real time under the strong disturbance of stray current, so as to maximize the functional effect of the system and prolong the service life of the pipeline.
- the system can be installed in part of the pipe section or in the whole process. It can be self-contained or docked with the existing oil and gas pipeline data collection and monitoring system (SCADA system).
- SCADA system existing oil and gas pipeline data collection and monitoring system
- FIG. 1 is a structural block diagram of a cathodic protection detection system for an oil and gas pipeline of the present invention. detailed description
- the signal acquisition unit 1 consists of more than one sensor.
- the current sensor and voltage sensor are used to collect the pipeline current and the ground potential signal output is connected to the cable 2.
- the cable 2 transmission signal is connected to the display device 3, and the display device 3 is selected from the smart display device.
- the display 3 displays the input signal after processing.
- a plurality of signal acquisition units 1 are arranged along the pipeline, and are respectively connected to the corresponding interface of the display device 3 via the cable 2, and the power supply 4 supplies power to the signal acquisition unit and the display device 3.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Ecology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Environmental & Geological Engineering (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
An oil and gas pipeline cathodic protection parameter detection system relates to the technical field of oil and gas pipeline cathodic protection parameter detection. The system comprises more than one sensor combined as a signal collection unit (1), used for collecting a cathodic protection parameter signal of a corresponding pipe segment and being connected with a cable (2). The cable (2) transmits the signal to a corresponding interface of a display instrument (3). The display instrument (3) processes and displays the input signal. Several signal collection units (1) are arranged along the oil and gas pipeline in order, and are respectively connected to the corresponding interface of the display instrument (3) through the cable (2). A power supply system (4) supplies power to the signal collection unit (1) and the display instrument (3). The present invention mainly functions to accurately and automatically detect the oil and gas pipeline cathodic protection parameter in real-time, thereby providing a reliable basis for the timely adjustment and control on the high-efficient normal running of the oil and gas pipeline protection system.
Description
油气管道阴极保护参数检测系统 技术领域 Oil and gas pipeline cathodic protection parameter detection system
本发明涉及一种金属腐蚀检测系统， 具体地说是涉及一种油气管 道阴极保护参数检测系统。 The present invention relates to a metal corrosion detecting system, and more particularly to a hydrocarbon gas pipeline cathodic protection parameter detecting system.
背景技术 Background technique
腐蚀给国民经济造成的损失是巨大的。 仅我国每年因腐蚀造成的 损失约占国民生产总值的 5%, 高达 5000亿元， 而石油和石化行业为 6%, 特别是油气管道因腐蚀发生的爆炸着火、 开裂泄漏等而造成的经 济损失、 人身伤亡、 环境危害更为严重。 为了保证油气管道长期安全 运行和延长油气管道的使用寿命， 减少腐蚀事故的发生， 各国政府和 油气管道企业都制定了一系列油气管道防腐蚀规则。 阴极保护与防腐 层技术结合的联合保护是当今世界公认的， 行之有效的油气管道防护 措施。 The damage caused by corrosion to the national economy is enormous. Only China's annual losses due to corrosion account for about 5% of the gross national product, up to 500 billion yuan, while the oil and petrochemical industry is 6%, especially the oil and gas pipelines caused by the explosion of fire, cracking and other economics caused by corrosion. Losses, personal injury and death, and environmental hazards are more serious. In order to ensure the long-term safe operation of oil and gas pipelines and prolong the service life of oil and gas pipelines and reduce the occurrence of corrosion accidents, governments and oil and gas pipeline companies have formulated a series of anti-corrosion rules for oil and gas pipelines. The combined protection of cathodic protection and anti-corrosion technology is recognized in the world as an effective oil and gas pipeline protection measure.
在阴极保护技术中， 保护电位和保护电流密度是判断被保护金属 是否达到完全保护以及调整和控制阴极保护系统运行过程采用的两个 主要参数，正确选择和控制阴极保护主要参数是决定保护效果的关键。 然而， 目前国内外对油气管道阴极保护参数检测基本上是人工选点周 期性主要应用万用表逐段检测， 持续时间长， 工作量大， 投入多， 甚 至有的还需开挖检测， 不能及时发现问题， 致使部分油气管道保护失 效或过保护。 特别是在杂散电流干扰的情况下， 现有检测手段不能同 时连续获得全程或某管段客观真实的参数，无法满足腐蚀控制的要求。
而且这种情况随经济发展， 社会用电量持续增长越来越突出。 实时准 确自动地检测采集油气管道的阴极保护参数是保证阴极保护系统效果 最大化， 提高油气管道使用寿命的关键措施， 建立油气管道阴极保护 参数远程在线检测系统非常必要。 发明内容 In the cathodic protection technology, the protection potential and the protection current density are the two main parameters used to judge whether the protected metal has reached full protection and to adjust and control the operation of the cathodic protection system. The correct selection and control of the main parameters of cathodic protection is to determine the protective effect. The essential. However, at present, the detection of cathodic protection parameters of oil and gas pipelines at home and abroad is basically the manual selection of periodic multi-meter multi-stage detection. It has a long duration, a large workload, a large investment, and some even need excavation detection, which cannot be discovered in time. The problem is that some oil and gas pipeline protection fails or is overprotected. Especially in the case of stray current interference, the existing detection means can not continuously obtain the objective and true parameters of the whole process or a certain pipe section at the same time, and cannot meet the requirements of corrosion control. Moreover, with the development of the economy, the continuous increase in social power consumption has become increasingly prominent. Real-time and accurate detection of the cathodic protection parameters of the oil and gas pipelines is a key measure to ensure the maximum effectiveness of the cathodic protection system and improve the service life of the oil and gas pipelines. It is necessary to establish a remote on-line detection system for the cathodic protection parameters of oil and gas pipelines. Summary of the invention
本发明的目的是克服现有技术中的不足， 提供一种实时准确自动 检测釆集油气管道阴极保护参数检测系统。 The object of the present invention is to overcome the deficiencies in the prior art and provide a real-time and accurate automatic detection of a cathode protection parameter detection system for a gas pipeline.
本发明的目的是通过以下技术方案实现的， 包括一个以上传感器 组合为信号采集单元， 用以釆集相应管段阴极保护系数信号且与电缆 连接， 电缆传输信号与显示仪对应接口连接， 显示仪将输入信号处理 后显示， 由若干个信号釆集单元沿管道顺延排列， 分别经电缆与显示 仪对应接口连接， 电源系统向信号采集单元和显示仪供电。 The object of the present invention is achieved by the following technical solutions, comprising more than one sensor combined as a signal acquisition unit for collecting the corresponding cathodic protection coefficient signal of the pipe segment and connecting with the cable, and the cable transmission signal is connected with the corresponding interface of the display device, and the display device will After the input signal is processed, a plurality of signal collection units are arranged along the pipeline, and respectively connected to the corresponding interface of the display through the cable, and the power supply system supplies power to the signal acquisition unit and the display device.
本发明的有益效果是： The beneficial effects of the invention are:
1、本系统所检测的油气管道阴极保护参数真实反映同一时间在一 定距离管段工况， 克服了长期以来现有技术所检测油气管道阴极保护 系统参数只反映某一时某一点管段工况， 这不仅对调整和控制油气管 道阴极保护系统提供科学可行的依据， 而且对油气管道防腐层缺陷、 损伤点的探测和定位具有重要作用。 1. The cathodic protection parameters of the oil and gas pipelines detected by the system truly reflect the working conditions of the pipeline at a certain distance at the same time, overcoming the parameters of the cathodic protection system of the oil and gas pipelines detected by the prior art for a long time only reflecting the working conditions of a certain point at a certain point, which is not only It provides scientific and feasible basis for adjusting and controlling the cathodic protection system of oil and gas pipelines, and plays an important role in the detection and location of oil and gas pipeline anti-corrosion layer defects and damage points.
2、 保证现有油气管道阴极保护系统在杂散电流强烈干扰情况下， 也能实时自动调整注入与排流操作， 使该系统的功能效果最大化， 延 长管道使用寿命。
3、 该系统既可部分管段安装， 也可全程安装； 可自成体系， 也可 与现有的油气管道数据釆集与监控系统 （SCADA系统） 对接。 附图说明 2. Ensure that the existing oil and gas pipeline cathodic protection system can automatically adjust the injection and discharge operations in real time under the strong disturbance of stray current, so as to maximize the functional effect of the system and prolong the service life of the pipeline. 3. The system can be installed in part of the pipe section or in the whole process. It can be self-contained or docked with the existing oil and gas pipeline data collection and monitoring system (SCADA system). DRAWINGS
图 1是本发明油气管道阴极保护检测系统结构框图。 具体实施方式 1 is a structural block diagram of a cathodic protection detection system for an oil and gas pipeline of the present invention. detailed description
下面结合附图与具体实施方式对本发明作详细描述。 The present invention will be described in detail below with reference to the drawings and specific embodiments.
请参阅附图： 信号采集单元 1 由一个以上传感器组成， 选用电流 传感器和电压传感器釆集管道电流、 管地电位信号输出与电缆 2相连 接。 电缆 2传输信号与显示仪 3连接， 显示仪 3选用智能显示仪。 显 示仪 3将输入信号处理后显示。 由若干个信号采集单元 1沿管道顺延 排列， 分别经电缆 2与显示仪 3对应接口相连接， 电源.4向信号采集 单元和显示仪 3供电。
Please refer to the attached figure: The signal acquisition unit 1 consists of more than one sensor. The current sensor and voltage sensor are used to collect the pipeline current and the ground potential signal output is connected to the cable 2. The cable 2 transmission signal is connected to the display device 3, and the display device 3 is selected from the smart display device. The display 3 displays the input signal after processing. A plurality of signal acquisition units 1 are arranged along the pipeline, and are respectively connected to the corresponding interface of the display device 3 via the cable 2, and the power supply 4 supplies power to the signal acquisition unit and the display device 3.
Claims
1、 一种油气管道阴极保护参数检测系统， 其特征在于它包括一个 以上传感器组合为信号采集单元， 用以采集相应管段阴极保护参数信 号且与电缆连接， 电缆传输信号与显示仪对应接口连接， 显示仪将输 入信号处理后显示； 由若干个信号釆集单元沿油气管道顺延排列， 分 别经电缆与显示仪对应接口连接， 电源系统向信号采集单元和显示仪 供电。 1. A cathode protection parameter detection system for oil and gas pipelines, characterized in that it comprises more than one sensor combined as a signal acquisition unit for collecting a cathode protection parameter signal of a corresponding pipe segment and connected with a cable, and the cable transmission signal is connected with a corresponding interface of the display device. The display device displays the input signal after processing; a plurality of signal collection units are arranged along the oil and gas pipeline, respectively, and are respectively connected to the corresponding interface of the display device via the cable, and the power supply system supplies power to the signal acquisition unit and the display device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2011/001535 WO2013033870A1 (en) | 2011-09-09 | 2011-09-09 | Oil and gas pipeline cathodic protection parameter detection system |
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| PCT/CN2011/001535 WO2013033870A1 (en) | 2011-09-09 | 2011-09-09 | Oil and gas pipeline cathodic protection parameter detection system |
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| CN1388367A (en) * | 2002-06-26 | 2003-01-01 | 谢自力 | Round inspection monitoring system and method for cathode protection signal of long conveying pipeline |
| CN1472363A (en) * | 2003-06-07 | 2004-02-04 | 胜利油田胜利工程设计咨询有限责任公 | Zone negative electrode protective intelligent monitoring systems |
| CN102021584A (en) * | 2010-07-20 | 2011-04-20 | 中石油北京天然气管道有限公司 | Pipe transmission oriented cathode protection system |
| CN102358941A (en) * | 2011-09-09 | 2012-02-22 | 黄盛富 | Oil gas pipe cathode protection parameter detection system |
-
2011
- 2011-09-09 WO PCT/CN2011/001535 patent/WO2013033870A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1388367A (en) * | 2002-06-26 | 2003-01-01 | 谢自力 | Round inspection monitoring system and method for cathode protection signal of long conveying pipeline |
| CN1472363A (en) * | 2003-06-07 | 2004-02-04 | 胜利油田胜利工程设计咨询有限责任公 | Zone negative electrode protective intelligent monitoring systems |
| CN102021584A (en) * | 2010-07-20 | 2011-04-20 | 中石油北京天然气管道有限公司 | Pipe transmission oriented cathode protection system |
| CN102358941A (en) * | 2011-09-09 | 2012-02-22 | 黄盛富 | Oil gas pipe cathode protection parameter detection system |
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