Marine jacket with ICCP system protection

Abstract

The utility model relates to an ocean jacket with ICCP system protection, which comprises an ocean jacket, an ICCP system and a remote monitoring system, the ICCP system comprises a direct current power supply, an auxiliary anode and a reference electrode and is used for protecting the outer wall of the jacket, and the remote monitoring system comprises an intelligent acquisition instrument and an upper computer centralized processing system. The sensor is used for acquiring the protection state of the jacket and the operation state of the auxiliary anode; through combination of the ICCP system and the remote monitoring system, corrosion of the jacket is effectively prevented or slowed down, the protection state of the jacket and the operation state of the auxiliary anode can be monitored in real time, potential problems can be found and processed in time, and long-term stable operation of the system is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to offshore jacket technical field especially, it is a kind of ocean jacket with ICCP system protection. BACKGROUND

[0002] In marine environment, metal structure such as jacket is long-term exposed in corrosive medium, is vulnerable to electrochemical corrosion, leading to structural performance decline, even cause safety accident.In prior art, ocean jacket mainly uses the method of sacrificial anode cathodic protection, although simple and easy to operate, but in large structure and high corrosive environment, protection effect is limited, and sacrificial anode needs to be frequently replaced, increase maintenance cost.Ocean jacket corrosion in marine environment is mainly electrochemical corrosion, by using ICCP (Impressed Current Cathodic Protection) system can effectively prevent metal in marine corrosion environment electrochemical corrosion.But the ocean jacket using ICCP system of prior art is influenced by multiple factors, cannot ensure its long-term stability. UTILITY MODEL CONTENT

[0003] To solve the above problems, the utility model provides a kind of ocean jacket with ICCP system protection, including ocean jacket, ICCP system and remote monitoring system, the ICCP system includes direct-current power supply, auxiliary anode and reference electrode, for protecting the outer wall of jacket, the remote monitoring system includes intelligent acquisition instrument and host computer centralized processing system, for obtaining the protection state of jacket and the operating condition of auxiliary anode.

[0004] On the basis of the above scheme, the direct-current power supply adopts potentiostat, the potentiostat is installed on the upper working platform of jacket, the intelligent acquisition instrument is integrated in potentiostat, the auxiliary anode and reference electrode are fixedly installed on jacket by pedestal, the auxiliary anode is connected to the anode output end of potentiostat by cable, the reference electrode is connected to the reference electrode input end of potentiostat by cable.

[0005] On the basis of the above scheme, the jacket is fixedly installed with cladding, support pipe extends out from the inside of the cladding, passes through cladding and is closely connected with cladding, cable protection tube is connected with support pipe by connecting body and is connected with pedestal, connecting flange is fixedly installed at the other end of support pipe.

[0006] On the basis of the above scheme, the auxiliary anode is mixed metal oxide anode, the reference electrode is zinc reference electrode, with discoid structure.

[0007] On the basis of the above scheme, the ICCP system further comprises a cathode cable and a measurement cable, the cathode cable is connected to a cathode ground and electrically connected to the jacket structure, and the measurement cable is connected to a measurement ground and electrically connected to the jacket structure.

[0008] On the basis of the above scheme, the remote monitoring system further comprises a first ICCP system background cabinet, a first data server, a first optical communication cabinet, a second data server, a second optical communication cabinet and a monitoring terminal; the constant potential instrument, the first ICCP system background cabinet and the first data server are connected with each other through CAT5E network cable, the first optical communication cabinet is connected with the second optical communication cabinet through submarine optical cable, the second optical communication cabinet is connected with the second data server through CAT5E network cable, and the second data server is further connected to the monitoring terminal through CAT5E network cable.

[0009] Compared with the prior art, the beneficial effects of the utility model are that: through the combination of the ICCP system and the remote monitoring system, the corrosion of the jacket is effectively prevented or slowed down, the protection state of the jacket and the operation state of the auxiliary anode can be monitored in real time, potential problems can be found and handled in time, and the long-term stable operation of the system is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is the jacket structure schematic diagram of the utility model;

[0011] Figure 2 is the installation structure schematic diagram of the utility model;

[0012] Figure 3 is the auxiliary anode structure schematic diagram of the utility model;

[0013] Figure 4 is the reference electrode structure schematic diagram of the utility model;

[0014] Figure 5 is the ICCP system wiring schematic diagram of the utility model;

[0015] Figure 6 is the remote monitoring system schematic diagram of the utility model; DETAILED DESCRIPTION

[0016] In order to facilitate understanding of the utility model, the utility model will be described more comprehensively below with reference to relevant drawings and examples.

[0017] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be direct connection, also can pass through intermediate medium indirectly link, can be two element inside link or two element mutual action relation.For ordinary skilled person in the art, can understand the specific meaning of above-mentioned terms in the utility model according to specific circumstances.

[0018] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "left", "right", "front", "back", "top", "bottom" and the like are all based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0019] The utility model provides a kind of ocean jacket with ICCP system protection, including ocean jacket, ICCP system and remote monitoring system, ICCP system can effectively prevent the electrochemistry corrosion of jacket, and remote detection system ensures the stable operation of system, promptly discovers and solves potential problem, to extend the service life of jacket.

[0020] As Figure 1 And Figure 2 As shown, according to the embodiment of the utility model, ICCP system includes DC power supply, auxiliary anode 2 and reference electrode 3, wherein, the DC power supply is installed on jacket platform, the auxiliary anode and reference electrode are fixedly installed on jacket 1 by base, and the cable sheath is passed through or connected to base.

[0021] Further, the specific installation mode of ICCP system and auxiliary components and jacket is that cladding 4 is fixedly installed on jacket 1, support pipe 5 extends out from the inside of cladding, passes through cladding and is closely connected, cable sheath 6 is connected with support pipe by connecting body 7, and connecting flange 8 is fixedly installed on the other end of support pipe.

[0022] In order to the sealing property of connection and structural strength, cable sheath and support pipe are welded and rounded.

[0023] In actual installation process, according to the position of connecting component, the connecting body selects equal-diameter tee joint or equal-diameter cross joint.

[0024] Preferably, the direct current power supply adopts a constant potential instrument, which is a silicon controlled forced current cathodic protection power supply, has the advantages of high efficiency, high reliability, small ripple coefficient, etc., and has a complete computer management system, which can collect all running parameters, running states, fault information in the central control room (upper computer). According to the embodiment, the communication of the constant potential instrument meets the Modbus TCP protocol, and the signal is transmitted through the network port and network cable.

[0025] Further, as shown in Figure 3 , the reference electrode is in a disc structure, and the model selected in the embodiment is FCXX-1. The installation mode is welding fixed base, bolt fixing uses an insulating bracket, and a stuffing box is sealed, and a water tight cover is added to ensure the stability and sealing of the electrode. The auxiliary anode structure is shown in Figure 4 , which is set as a mixed metal oxide anode (MMO).

[0026] Preferably, the zinc reference electrode is less affected by environmental factors and has a long service life, and is more suitable for seawater, brackish water, freshwater medium as a long-term reference electrode.

[0027] Further, as shown in Figure 5 , 12 auxiliary anodes are provided in the system, which are marked as A1 to A12. Each anode has a corresponding trailing current number from B001 to B012 for uniquely identifying and tracking the output current of each anode; there are 4 reference electrodes in the system, numbered C1 to C4, each equipped with a trailing cable, numbered C001 to C004, which are used to monitor the potential change in the system. And the system is provided with multiple junction boxes, two anode bus cables are connected in the junction box, numbered B101 and B102, which are responsible for collecting the current of each auxiliary anode and guiding it to the structure to be protected; similarly in the junction box, there are four reference electrode adapter cables, numbered C101 to C104, which are used to transmit the signal of the reference electrode to the monitoring equipment. A cathode cable numbered B201 is connected to the cathode ground, ensuring good electrical connection between the jacket structure and the ground, thereby realizing effective cathodic protection. In addition, there is a measurement cable numbered C201, which is connected to the measurement ground and connected to the jacket structure to facilitate monitoring the running state of the entire system.

[0028] Further, the cathode cable is used to transmit the protection current from the auxiliary anode to the metal structure that needs protection. One end of the cathode cable is connected to the cathode output of the potentiostat, and the other end is connected to the metal structure to be protected, realizing electrical connection. In this way, the cathode protection system can provide sufficient negative charge to the metal structure, so that its surface remains at a lower potential state, thereby avoiding or slowing down corrosion. The function of the measurement cable is to connect the reference electrode with the potentiostat, so as to monitor the potential value of the protected metal structure relative to the reference electrode. The reference electrode is a standard electrode with a stable potential, through which accurate potential readings can be obtained, and then the effect of cathodic protection is evaluated whether it meets the expected effect.

[0029] Specifically, the junction box anode bus cable has 4 lines, which respectively collect the output current of a plurality of auxiliary anodes (for example, A1-A12) and then uniformly transmit to the potentiostat or directly connect to the metal structure to be protected. In this way, the wiring can be simplified, the number of individual wires from the potentiostat to each anode can be reduced, and the installation of the entire system is more convenient and neat.

[0030] In order to effectively obtain the protection condition of the offshore jacket, the reference electrode is used to obtain the protection potential, the cathodic protection state of the jacket is evaluated and alarmed by testing the output parameters of the potentiostat, and the protection state of the jacket and the running condition of the auxiliary anode are obtained in time. The intelligent data acquisition system transmits all the collected data to the control terminal, integrates the jacket information and related data on the map information system through the online monitoring system of the cathodic protection, and displays the information on the map information platform in a timely manner by using intuitive statistical charts and reports, so as to realize the visual management of the cathodic protection based on the map information.

[0031] Specifically, the remote monitoring system is an intelligent measurement and control system based on wired signal transmission data communication mode to realize remote data acquisition. The remote monitoring system is composed of the following parts: intelligent acquisition instrument: installed on the upper working platform of the jacket and integrated in the potentiostat; upper computer centralized processing system: sending monitoring instructions, receiving telemetry data, data analysis and processing, and user interface operation; the reference electrode connects the intelligent acquisition instrument and is installed on the jacket.

[0032] As Figure 6As shown, the offshore wind power booster station control room includes an ICCP system power supply, an ICCP system background cabinet, a first data server and a first optical communication cabinet, the booster station land control center includes a second data server, a second optical communication cabinet and a monitoring terminal; the ICCP system power supply, the ICCP system background cabinet and the first data server are connected with each other through CAT5E network cable, the first optical communication cabinet is connected with the second optical communication cabinet through submarine optical cable, data transmission between the offshore wind power booster station and the land control center is realized, the second optical communication cabinet is connected with the second data server through CAT5E network cable, the second data server is further connected to the monitoring terminal through CAT5E network cable, and the monitoring terminal is used for displaying data.

[0033] In summary, by combining the ICCP system and the remote monitoring system, the corrosion of the jacket can be effectively prevented or slowed down, the protection state of the jacket and the operation state of the auxiliary anode can be monitored in real time, potential problems can be found and handled in time, and long-term stable operation of the system can be ensured.

[0034] The basic principle and main features of the utility model are shown and described above, for those skilled in the art, obviously, the utility model is not limited to the details of the above exemplary embodiments, therefore the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model.

[0035] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, the description manner of the specification is only for clarity, the skilled in the art should regard the specification as a whole, the technical solutions in each embodiment can also be combined appropriately to form other embodiments that the skilled in the art can understand.

Claims

1. A marine jacket structure with ICCP system protection, characterized in that, The system includes a marine jacket, an ICCP system, and a remote monitoring system. The ICCP system includes a DC power supply, auxiliary anodes, and a reference electrode to protect the outer wall of the jacket. The DC power supply uses a potentiostat. The remote monitoring system includes an intelligent data acquisition unit and a host computer centralized processing system to obtain the protection status of the jacket and the operating status of the auxiliary anodes. The remote monitoring system also includes a first ICCP system back-end cabinet, a first data server, a first optical communication cabinet, a second data server, a second optical communication cabinet, and a monitoring terminal. The potentiostat, the first ICCP system back-end cabinet, and the first data server are interconnected via CAT5E network cables. The first optical communication cabinet is connected to the second optical communication cabinet via a submarine optical cable. The second optical communication cabinet is connected to the second data server via a CAT5E network cable. The second data server is further connected to the monitoring terminal via a CAT5E network cable.

2. A marine jacket structure with ICCP system protection according to claim 1, characterized in that, The potentiostat is mounted on the upper working platform of the guide frame. The intelligent data acquisition device is integrated into the potentiostat. The auxiliary anode and the reference electrode are fixedly mounted on the guide frame via a base. The auxiliary anode is connected to the anode output terminal of the potentiostat via a cable, and the reference electrode is connected to the reference electrode input terminal of the potentiostat via a cable.

3. A marine jacket structure with ICCP system protection according to claim 2, characterized in that, A sheath is fixedly installed on the conduit frame. A support pipe extends from inside the sheath, passes through the sheath, and is tightly connected to the sheath. The cable conduit is connected to the support pipe and the base through a connector. A connecting flange is fixedly installed at the other end of the support pipe.

4. A marine jacket structure with ICCP system protection according to claim 1, characterized in that, The auxiliary anode is a mixed metal oxide anode, and the reference electrode is a zinc reference electrode with a disk-shaped structure.

5. A marine jacket structure with ICCP system protection according to claim 1, characterized in that, The ICCP system also includes a cathode cable and a measuring cable. The cathode cable is connected to the cathode ground and electrically connected to the jacket structure. The measuring cable is connected to the measuring ground and electrically connected to the jacket structure.

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