Offshore platform impressed current cathodic protection complete equipment with independent system

Abstract

The invention relates to the technical field of offshore platform steel structure protection, and discloses offshore platform impressed current cathodic protection complete equipment with an independent system, which comprises a system server host and a complete machine power distribution device, the system server host is electrically connected with a distributed multi-path potential monitoring device through a cable, the system server host is electrically connected with an intelligent multi-path output potentiostat through a cable, and the system server host, the distributed multi-path potential monitoring device and the intelligent multi-path output potentiostat are all electrically connected with a complete machine power distribution device. The impressed current cathodic protection complete equipment for the offshore platform is designed into a completely independent system, does not depend on an external power supply or a network, ensures continuous protection of the offshore platform, can stably operate even in a severe marine environment, and is simple in connection, easy to disassemble and replace and high in reliability due to the modular design. And the maintenance cost of the system is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of offshore platform steel structure protection, in particular to a system-independent offshore platform impressed current cathodic protection complete set of equipment. Background Art

[0002] In offshore oil production, offshore platforms are usually built with steel materials, and seawater is highly corrosive to steel. In order to protect steel from corrosion, cathodic protection must be applied. Currently, the commonly used cathodic protection methods include impressed current and sacrificial anode. However, the service life of sacrificial anode is limited, and the replacement and maintenance workload is large. Summary of the invention

[0003] The object of the present invention is to provide a complete set of impressed current cathodic protection equipment for offshore platforms with a system independence, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a system-independent offshore platform impressed current cathodic protection complete set of equipment, including a system server host and a complete machine power distribution device, the system server host is internally loaded with cathodic protection monitoring software, the system server host is electrically connected to a distributed multi-channel potential monitoring device through a cable, the system server host is electrically connected to an intelligent multi-channel output constant potentiostat through a cable, the system server host, the distributed multi-channel potential monitoring device, and the intelligent multi-channel output constant potentiostat are all electrically connected to the complete machine power distribution device, and the distributed multi-channel potential monitoring device and the intelligent multi-channel output constant potentiostat are electrically connected to a cathodic protection structure; The cathodic protection structure includes a mounting bracket, an auxiliary anode and a reference electrode. The mounting bracket is used to install the auxiliary anode and the reference electrode. The auxiliary anode is installed at a place far away from the protected steel structure and is still set on the offshore platform. The reference electrode is installed on the offshore platform or in the nearby seawater. A DC closed loop is formed between the auxiliary anode, the protected steel structure and the intelligent multi-channel output constant potentiostat.

[0005] Furthermore, the system server host serves as the core of the entire cathodic protection system and is responsible for receiving, processing, storing and sending data. The cathodic protection monitoring software is used to intelligently manage the entire cathodic protection system and realize functions such as data collection, analysis, storage, monitoring and alarm, joint control and coordination to ensure that the protected steel structure is in the safest protection state. The distributed multi-channel potential monitoring device is installed at a key position of the protected steel structure to monitor the potential changes of the steel structure in real time and transmit the monitored data to the system server host in real time for analysis and processing by the cathodic protection monitoring software. The intelligent multi-channel output constant potentiostat automatically adjusts the output current and voltage according to the instructions of the cathodic protection monitoring software to ensure that the potential of the protected steel structure is stable within the set safety range. The whole machine power distribution device provides a stable power supply for the entire cathodic protection system.

[0006] Furthermore, the cathodic protection monitoring software includes a data acquisition unit, a storage and query unit, a data processing unit, a monitoring and alarm unit, a joint control and adjustment unit, and a user interface and operation unit.

[0007] Furthermore, the data acquisition unit of the cathodic protection monitoring software collects the potential data of the protected steel structure in real time through a distributed multi-channel potential monitoring device, and the joint control and adjustment unit of the cathodic protection monitoring software is mainly linked with an intelligent multi-channel output constant potentiostat, a fire protection system of an offshore platform, a safety system, etc.

[0008] Furthermore, the distributed multi-channel potential monitoring device is distributed in accordance with the three basic principles of comprehensiveness, accuracy and reliability.

[0009] Furthermore, the specific distribution mode of the distributed multi-channel potential monitoring device is as follows: S1. Distribution along the surface of the steel structure: The monitoring devices can be distributed along the surface of the steel structure, especially in the corrosion-prone areas such as joints and welding points, and the number of monitoring points should be appropriately increased; S2. Encrypted distribution in key areas: For key areas in steel structures, such as supporting structures, stress points, etc., the number of monitoring devices should be appropriately increased to improve the accuracy and reliability of monitoring; S3. Layered distribution: For large and complex steel structures, they can be divided into multiple layers or areas, and monitoring devices can be set up in each layer or area; S4. Linkage with other systems: Linkage with other equipment in the cathodic protection system (such as intelligent multi-channel output constant potentiostat) to achieve real-time data sharing and collaborative work.

[0010] Furthermore, the sensors used in the distributed multi-channel potential monitoring device include a potential sensor, a current sensor, a temperature sensor, a pH sensor, a dissolved oxygen sensor, and a chloride ion sensor.

[0011] Furthermore, the specific monitoring method of the distributed multi-channel potential monitoring device is as follows: S1. Sensor arrangement: Potential sensors, current sensors and other sensors are arranged at key locations according to the layout, size and protection requirements of the steel structure; S2. Data collection: collect the potential data and current data of the steel structure in real time through sensors; S3, data transmission: the collected data is transmitted to the data processing center by wireless or wired means; S4, Data Analysis: After receiving the data, the data processing center performs preprocessing, feature extraction and pattern recognition; S5. Monitoring and alarm: The monitoring software monitors the received data in real time and makes judgments based on preset thresholds.

[0012] Furthermore, the storage and query unit stores the collected potential data and analysis results in the database of the system server host, and the alarm information of the monitoring alarm unit is sent to relevant personnel through sound and light alarms, SMS notifications, email reminders, etc., to ensure that they can take timely measures to deal with it.

[0013] Furthermore, the data processing unit adopts three working modes: real-time monitoring, anomaly detection and trend prediction. In real-time monitoring, after the monitoring software receives the potential data, it will immediately perform real-time monitoring, and then judge whether the current potential of the steel structure is in a safe state according to the preset safe potential range. When the anomaly detection detects that the potential of the steel structure exceeds the safety range, the monitoring software will immediately trigger the anomaly detection mechanism, and then analyze the cause of the potential change, such as whether there is current leakage, anode performance degradation or coating damage. Trend prediction is that in addition to the real-time monitoring work scope, the monitoring software performs trend prediction on the potential data, and through the analysis of historical data, predicts the potential change of the steel structure in the future period of time, providing a scientific basis for preventive maintenance.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The offshore platform impressed current cathodic protection complete set of equipment of the present invention is designed as a completely independent system, which does not rely on external power supply or network, ensuring the continuous protection of the offshore platform and can operate stably even in harsh marine environment. The modular design makes the connection between each component simple, easy to disassemble and replace, and reduces the maintenance cost of the system; 2. All cathodic protection data and equipment are intelligently managed by the cathodic protection monitoring software in the server host, without the need for human intervention, which greatly improves the operating efficiency and reliability of the system. The system can monitor the potential changes of the protected steel structure in real time and automatically send out an alarm signal when an abnormality occurs, ensuring that potential safety hazards are discovered and dealt with in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a distribution diagram of the equipment of the present invention; Figure 2 It is a system diagram of the cathodic protection monitoring software of the present invention. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] See also Figure 1-Figure 2 The present invention provides a technical solution: a system-independent offshore platform impressed current cathodic protection complete set of equipment, including a system server host and a complete machine power distribution device, the system server host is internally loaded with cathodic protection monitoring software, the system server host is electrically connected to a distributed multi-channel potential monitoring device through a cable, the system server host is electrically connected to an intelligent multi-channel output constant potentiostat through a cable, the system server host, the distributed multi-channel potential monitoring device, and the intelligent multi-channel output constant potentiostat are all electrically connected to the complete machine power distribution device, the distributed multi-channel potential monitoring device and the intelligent multi-channel output constant potentiostat are electrically connected to a cathodic protection structure, all cathodic protection data and equipment are intelligently managed by the monitoring software, no manual intervention is required, the operation efficiency and reliability of the system are greatly improved, the system adopts a modular design, the connection between each component is simple, easy to disassemble and replace, and the maintenance cost of the system is reduced; The cathodic protection structure includes a mounting bracket, an auxiliary anode and a reference electrode. The mounting bracket is used to mount the auxiliary anode and the reference electrode. The auxiliary anode is mounted at a place far away from the protected steel structure and is still set on the offshore platform. The reference electrode is mounted on the offshore platform or in the nearby seawater. A DC closed loop is formed between the auxiliary anode, the protected steel structure and the intelligent multi-channel output constant potentiostat. The intelligent multi-channel output constant potentiostat can automatically adjust the output current and voltage according to the instructions of the monitoring software to ensure that the potential of the protected steel structure is stable within the set safety range, thereby achieving high-precision protection. The system server host is the core of the entire cathodic protection system and is responsible for receiving, processing, storing and sending data. The system server host needs to have high-performance computing power and a stable operating environment to ensure that the system can process large amounts of data in real time and accurately. The cathodic protection monitoring software is used to intelligently manage the entire cathodic protection system and realize functions such as data collection, analysis, storage, monitoring and alarm, joint control and joint adjustment to ensure that the protected steel structure is in the safest protection state. The distributed multi-channel potential monitoring device is installed at the key position of the protected steel structure to monitor the potential change of the steel structure in real time and transmit the monitored data to the system server host in real time for analysis and processing by the cathodic protection monitoring software. The intelligent multi-channel output constant potentiostat automatically adjusts the output current and voltage according to the instructions of the cathodic protection monitoring software to ensure that the potential of the protected steel structure is stable within the set safety range. The intelligent multi-channel output constant potentiostat needs to have multiple protection functions, such as overcurrent, overvoltage, undervoltage, etc., to ensure the safe operation of the system. The whole machine power distribution device provides a stable power supply for the entire cathodic protection system. The whole machine power distribution device needs to have overload, short circuit and other protection functions to ensure the stable operation of the system. The cathodic protection monitoring software includes a data acquisition unit, a storage and query unit, a data processing unit, a monitoring and alarm unit, a joint control and adjustment unit, and a user interface and operation unit. The data acquisition unit of the cathodic protection monitoring software collects the potential data of the protected steel structure in real time through a distributed multi-channel potential monitoring device. The collected data is transmitted to the system server host through a dedicated communication protocol or interface for subsequent processing by the cathodic protection monitoring software. The joint control and adjustment unit of the cathodic protection monitoring software is mainly linked with the intelligent multi-channel output constant potentiostat, the fire protection system of the offshore platform, the safety system, etc. For example, when the potential of the steel structure is detected to be abnormal, the joint control and adjustment unit can automatically adjust the output current and voltage of the intelligent multi-channel output constant potentiostat to restore the potential to a safe range. The storage and query unit stores the collected potential data and analysis results in the database of the system server host. These data can be queried and exported according to time, location or other conditions, which is convenient for users to conduct subsequent analysis and processing. The alarm information of the monitoring and alarm unit is transmitted through sound and light alarms, SMS notifications, and email notifications. The data processing unit adopts three working modes: real-time monitoring, anomaly detection and trend prediction. After the monitoring software receives the potential data, it will immediately conduct real-time monitoring, and then judge whether the current potential of the steel structure is in a safe state according to the preset safe potential range. When the monitoring software detects that the potential of the steel structure exceeds the safe range, the monitoring software will immediately trigger the anomaly detection mechanism, and then analyze the cause of the potential change, such as whether there is current leakage, anode performance degradation or coating damage. Trend prediction is that in addition to the real-time monitoring scope, the monitoring software predicts the trend of the potential data, and predicts the potential change of the steel structure in the future by analyzing the historical data, so as to provide a scientific basis for preventive maintenance. The user interface and operation unit improve the visual operation interface. Users can intuitively view the potential change of the steel structure, the system operation status and the alarm information through the graphical interface. At the same time, users can also perform parameter setting and data export through the interface. The distributed multi-channel potential monitoring device is distributed according to the three basic principles of comprehensiveness, accuracy and reliability. The comprehensiveness principle is to ensure that the monitoring device can cover all key areas of the protected steel structure to avoid monitoring blind spots. The accuracy principle is that the monitoring device should be installed at a position that can accurately reflect the potential changes of the steel structure, such as the surface of the steel structure, the connection, etc. The reliability principle is that the monitoring device should have a high degree of reliability and stability, and can operate stably for a long time in the harsh marine environment. The specific distribution method of the distributed multi-channel potential monitoring device is as follows: S1. Distribution along the surface of steel structure: The monitoring devices can be distributed along the surface of steel structure, especially in corrosion-prone areas such as joints and welding points. The number of monitoring points should be appropriately increased. By setting multiple monitoring points on the surface of steel structure, the potential changes on the surface of steel structure can be monitored in real time, and potential corrosion risks can be discovered in time. S2. Intensive distribution of key areas: For key areas in steel structures, such as supporting structures and stress points, the number of monitoring devices should be appropriately increased to improve the accuracy and reliability of monitoring. These key areas are often more susceptible to corrosion, so intensified monitoring helps to timely discover and deal with potential safety hazards; S3. Layered distribution: For large and complex steel structures, they can be divided into multiple layers or areas, and monitoring devices can be set up in each layer or area. Through layered distribution, layered monitoring of the entire steel structure can be achieved, improving the efficiency and accuracy of monitoring; S4. Linkage with other systems: Linkage with other equipment in the cathodic protection system (such as intelligent multi-channel output constant potentiostat) to achieve real-time data sharing and collaborative work, which helps to achieve comprehensive, real-time and accurate protection of steel structures and improve the reliability and safety of the entire system; The sensors used in the distributed multi-channel potential monitoring device include potential sensors, current sensors, temperature sensors, pH sensors, dissolved oxygen sensors, and chloride ion sensors. The potential sensor is used to monitor the potential difference between the protected steel structure and the reference electrode to determine whether the steel structure is within a safe protection potential range. The current sensor is used to monitor the magnitude and direction of the cathodic protection current to ensure the normal operation of the cathodic protection system and provide sufficient protection current. The temperature sensor can be used to monitor the temperature of the protected steel structure and its surrounding environment to evaluate the impact of temperature on the cathodic protection effect. The pH sensor is used to monitor the pH value of the water body to evaluate its impact on the cathodic protection effect. The dissolved oxygen sensor is used to measure the dissolved oxygen content in the environment, which is of great significance for evaluating the cathodic protection effect and corrosion rate. The chloride ion sensor is used to measure the chloride ion content in the soil or water body. Chloride ion is one of the common corrosive media, and its content has an important impact on the cathodic protection effect. The specific monitoring method of the distributed multi-channel potential monitoring device is as follows: S1. Sensor arrangement: Potential sensors, current sensors and other sensors shall be arranged at key locations according to the layout, size and protection requirements of the steel structure. The sensors shall be installed in locations that are easy to monitor and maintain to avoid interference and damage from external factors. S2. Data collection: The potential data and current data of the steel structure are collected in real time through sensors. The data collection process should ensure the accuracy and stability of the data to avoid errors and losses in data transmission; S3. Data transmission: The collected data is transmitted to the data processing center by wireless or wired means. During the transmission process, the real-time and reliability of the data should be ensured to avoid data transmission delays or interruptions; S4. Data analysis: After receiving the data, the data processing center performs preprocessing, feature extraction and pattern recognition, and determines whether there is any abnormality in the protection status of the steel structure by analyzing the change trend and characteristics of the potential data and current data; S5. Monitoring and alarm: The monitoring software monitors the received data in real time and makes judgments based on the preset thresholds. If the potential data or current data exceeds the preset range, the monitoring software will trigger the alarm mechanism to remind relevant personnel to take timely measures to deal with it; The distributed multi-channel potential monitoring device has the characteristics of real-time, accuracy, comprehensiveness and reliability. The distributed multi-channel potential monitoring device can monitor the potential changes of the steel structure in real time and discover potential corrosion risks in time. Through high-precision sensors and data processing algorithms, it can accurately reflect the potential distribution of the steel structure and improve the accuracy of monitoring. The monitoring device covers multiple key areas of the steel structure to avoid monitoring blind spots and achieve comprehensive protection of the steel structure. The monitoring device adopts advanced sensing technology and communication technology, has high reliability and stability, and can operate stably for a long time in harsh marine environments.

[0018] Working principle: When in use, the distributed multi-channel potential monitoring device monitors the potential changes of the protected steel structure in real time and transmits the data to the system server host. The system server host receives and stores this data for analysis and processing by the cathodic protection monitoring software. The cathodic protection monitoring software analyzes the received data in real time to determine whether the potential of the protected steel structure is within the set safety range. If the potential exceeds the safety range, the monitoring software will issue a command to the intelligent multi-channel output constant potentiostat to adjust its output current and voltage to restore the potential to the safe range. When the system is abnormal or fails, the cathodic protection monitoring software will automatically send an alarm signal. At the same time, the monitoring software can also realize joint control and coordination with other related systems to ensure the safe operation of the entire offshore platform.

[0019] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. A complete set of impressed current cathodic protection equipment for offshore platforms with independent systems, including a system server host and a complete power distribution device, characterized in that: The system server host is internally loaded with cathode protection monitoring software, the system server host is electrically connected to a distributed multi-channel potential monitoring device through cables, the system server host is electrically connected to an intelligent multi-channel output constant potentiostat through cables, the system server host, the distributed multi-channel potential monitoring device, and the intelligent multi-channel output constant potentiostat are all electrically connected to the whole machine power distribution device, and the distributed multi-channel potential monitoring device and the intelligent multi-channel output constant potentiostat are electrically connected to a cathode protection structure; The cathodic protection structure includes a mounting bracket, an auxiliary anode and a reference electrode. The mounting bracket is used to install the auxiliary anode and the reference electrode. The auxiliary anode is installed at a place far away from the protected steel structure and is still set on the offshore platform. The reference electrode is installed on the offshore platform or in the nearby seawater. A DC closed loop is formed between the auxiliary anode, the protected steel structure and the intelligent multi-channel output constant potentiostat.

2. The system-independent offshore platform impressed current cathodic protection complete set of equipment according to claim 1, characterized in that: The system server host serves as the core of the entire cathodic protection system and is responsible for receiving, processing, storing and sending data. The cathodic protection monitoring software is used to intelligently manage the entire cathodic protection system and realize functions such as data collection, analysis, storage, monitoring and alarm, joint control and adjustment, to ensure that the protected steel structure is in the safest protection state. The distributed multi-channel potential monitoring device is installed at a key position of the protected steel structure to monitor the potential changes of the steel structure in real time, and transmit the monitored data to the system server host in real time for analysis and processing by the cathodic protection monitoring software. The intelligent multi-channel output constant potentiostat automatically adjusts the output current and voltage according to the instructions of the cathodic protection monitoring software to ensure that the potential of the protected steel structure is stable within the set safety range. The whole machine power distribution device provides a stable power supply for the entire cathodic protection system.

3. The system-independent offshore platform impressed current cathodic protection complete set of equipment according to claim 1, characterized in that: The cathodic protection monitoring software includes a data acquisition unit, a storage and query unit, a data processing unit, a monitoring and alarm unit, a joint control and adjustment unit, and a user interface and operation unit.

4. The system-independent offshore platform impressed current cathodic protection complete set of equipment according to claim 1, characterized in that: The data acquisition unit of the cathodic protection monitoring software collects the potential data of the protected steel structure in real time through a distributed multi-channel potential monitoring device. The joint control and adjustment unit of the cathodic protection monitoring software is mainly linked with an intelligent multi-channel output constant potentiostat, a fire protection system of an offshore platform, a safety system, etc.

5. The system-independent offshore platform impressed current cathodic protection complete set of equipment according to claim 1, characterized in that: The distributed multi-channel potential monitoring device is distributed in accordance with three basic principles: comprehensiveness, accuracy and reliability.

6. The system-independent offshore platform impressed current cathodic protection complete set of equipment according to claim 1, characterized in that: The specific distribution mode of the distributed multi-channel potential monitoring device is as follows: S1. Distribution along the surface of the steel structure: The monitoring devices can be distributed along the surface of the steel structure, especially in the corrosion-prone areas such as joints and welding points, and the number of monitoring points should be appropriately increased; S2. Encrypted distribution in key areas: For key areas in steel structures, such as supporting structures, stress points, etc., the number of monitoring devices should be appropriately increased to improve the accuracy and reliability of monitoring; S3. Layered distribution: For large and complex steel structures, they can be divided into multiple layers or areas, and monitoring devices can be set up in each layer or area; S4. Interaction with other systems: Interaction with other equipment in the cathodic protection system (such as intelligent multi-channel output constant potentiostat) to achieve real-time data sharing and collaborative work.

7. The system-independent offshore platform impressed current cathodic protection complete set of equipment according to claim 1, characterized in that: The sensors used in the distributed multi-channel potential monitoring device include a potential sensor, a current sensor, a temperature sensor, a pH value sensor, a dissolved oxygen sensor, and a chloride ion sensor.

8. The system-independent offshore platform impressed current cathodic protection complete set of equipment according to claim 1, characterized in that: The specific monitoring method of the distributed multi-channel potential monitoring device is as follows: S1. Sensor arrangement: Potential sensors, current sensors and other sensors are arranged at key locations according to the layout, size and protection requirements of the steel structure; S2. Data collection: collect the potential data and current data of the steel structure in real time through sensors; S3, data transmission: the collected data is transmitted to the data processing center by wireless or wired means; S4, Data Analysis: After receiving the data, the data processing center performs preprocessing, feature extraction and pattern recognition; S5. Monitoring and alarm: The monitoring software monitors the received data in real time and makes judgments based on preset thresholds.

9. The system-independent offshore platform impressed current cathodic protection complete set of equipment according to claim 3, characterized in that: The storage and query unit stores the collected potential data and analysis results in the database of the system server host, and the alarm information of the monitoring alarm unit is sent to relevant personnel through sound and light alarms, SMS notifications, email reminders, etc., to ensure that they can take timely measures to deal with it.

10. The system-independent offshore platform impressed current cathodic protection complete set of equipment according to claim 3, characterized in that: The data processing unit adopts three working modes: real-time monitoring, anomaly detection and trend prediction. In real-time monitoring, after the monitoring software receives the potential data, it will immediately conduct real-time monitoring, and then judge whether the current potential of the steel structure is in a safe state according to the preset safe potential range. When the anomaly detection detects that the potential of the steel structure exceeds the safe range, the monitoring software will immediately trigger the anomaly detection mechanism, and then analyze the cause of the potential change, such as whether there is current leakage, anode performance degradation or coating damage. Trend prediction is in addition to the real-time monitoring work scope. The monitoring software performs trend prediction on the potential data, and through the analysis of historical data, predicts the potential change of the steel structure in the future period of time, providing a scientific basis for preventive maintenance.

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