Intelligent protective device for jacket underwater structure

Abstract

The utility model provides an intelligent protective device for an underwater structure of a jacket, and relates to the technical field of ocean engineering, the device comprises an anode system, a sensor, a cable assembly and an intelligent multi-channel power supply, the anode system and the sensor are both installed on the jacket to be protected; the cable assembly at least comprises a cathode cable, an anode cable and a signal cable, the cathode of the intelligent multi-channel power supply is connected with the upper part of the jacket through the cathode cable, and the anode of the intelligent multi-channel power supply is connected with the anode system through the anode cable; the intelligent multi-channel power supply is provided with a control system, a control end wiring terminal of the control system is connected with a sensor through a signal cable, intelligent protection can be effectively carried out on the jacket, and seawater is prevented from corroding the jacket.

Description

Technical Field

[0001] The utility model relates to the technical field of marine engineering, in particular to an intelligent protective device for an underwater structure of a conductor frame. Background Art

[0002] Offshore oil platforms are important equipment for offshore oil drilling, oil production, and production operations. Their underwater structures are generally built in the form of steel jackets. Since seawater is a highly corrosive medium, if effective anti-corrosion measures are not taken, the steel offshore jacket underwater structure will be severely corroded, which will shorten the service life of the platform and increase the cost of platform maintenance and repair. In order to prevent seawater from corroding the jacket, cathodic protection methods are usually required to protect the jacket underwater structure.

[0003] Cathodic protection methods are divided into sacrificial anode method and impressed current method.

[0004] Among them, the advantages of the sacrificial anode system are that it does not require an external power supply, requires less maintenance in the later stage, has reliable performance, and has no risk of over-protection. However, its disadvantages are that the driving voltage is limited, it is not suitable for use in environments with high resistivity, the installation cost is high, and the weight of the anode increases the load on the platform, which pollutes the environment.

[0005] The advantages of impressed current system are adjustable output voltage and current, quick installation, low cost, long life and low environmental pollution. The disadvantages are that it requires external power supply, large amount of post-maintenance, and requires professional personnel to perform system maintenance and parameter adjustment. If the design is unreasonable, there will be a risk of uneven current distribution.

[0006] In recent years, with the improvement of environmental awareness of the marine environment and the advancement of impressed current technology in marine engineering, impressed current cathodic protection technology has been increasingly used in marine engineering equipment. However, it is found in applications that the intelligence and reliability of the impressed current system are still the key factors affecting system performance and application effects. Therefore, a more intelligent and highly reliable impressed current protection system is needed for marine engineering equipment. Utility Model Content

[0007] The purpose of the utility model is to overcome the above problems existing in the prior art and provide an intelligent protection device for the underwater structure of a jacket, which can effectively protect the jacket intelligently and prevent the jacket from being corroded by seawater. The preferred technical solution among the many technical solutions provided by the utility model can produce many technical effects as described below.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] The utility model provides an intelligent protection device for underwater structures of a conductor frame, comprising an anode system, a sensor, a cable assembly and an intelligent multi-channel power supply, wherein:

[0010] The anode system and the sensor are both installed on the conduit frame to be protected;

[0011] The cable assembly includes at least a cathode cable, an anode cable and a signal cable, wherein: the negative pole of the intelligent multi-channel power supply is connected to the upper part of the conduit rack through the cathode cable, and the positive pole of the intelligent multi-channel power supply is connected to the anode system through the anode cable; the intelligent multi-channel power supply is provided with a control system, and the control end terminal of the control system is connected to the sensor via the signal cable.

[0012] Preferably, the anode system is configured in plurality, and both ends of each anode system are respectively fixedly connected to the conduit rack.

[0013] Preferably, the anode system comprises a plurality of sections of waterproof cables and a plurality of anode system monomers, and every two adjacent anode system monomers are connected by at least one section of the waterproof cable.

[0014] Preferably, the intelligent multi-channel power supply comprises a cabinet, and the cabinet is arranged on the deck of the conductor frame or in an electrical equipment room located on the upper part of the conductor frame.

[0015] Preferably, a plurality of the sensors are arranged from the upper part to the lower part of the catheter rack.

[0016] Preferably, the control system comprises at least a cathodic protection parameter database, a data receiving module, a judgment module and an adjustment module, wherein:

[0017] The data receiving module is used to receive the data fed back by the sensor;

[0018] The judgment module is used to compare the data fed back by the sensor with the data in the cathode protection parameter database, and judge the protection status of the cathode of the conductor rack according to the comparison result;

[0019] The regulating module can select a suitable protection potential to automatically regulate the output of each channel of the intelligent multi-channel power supply, so that it can emit a suitable cathode protection current to act on the catheter rack through the anode system.

[0020] Preferably, the control system further comprises a remote communication module, wherein:

[0021] The remote communication module can transmit data to the host computer system via optical fiber or satellite communication.

[0022] Preferably, the control system further includes a fault judgment module and an early warning module, wherein:

[0023] The fault judgment module is used to automatically judge the fault cause of the cathodic protection system according to preset conditions;

[0024] The early warning module is used to provide sound and / or light early warning through one or more of a display screen, an alarm light or a built-in speaker.

[0025] The utility model provides an intelligent protection device for the underwater structure of a conductor frame, which is provided with an anode system, a sensor, a cable assembly and an intelligent multi-channel power supply. The anode system is used to effectively protect the conductor frame to prevent the corrosion of the conductor frame by seawater. The sensor can be communicated with the control system arranged inside the intelligent multi-channel power supply to realize the intelligent protection of the underwater structure of the conductor frame, which is particularly suitable for large and complex conductor frames. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a structural schematic diagram of an embodiment of the intelligent protective device for underwater structure of a jacket of the utility model;

[0028] Figure 2 The utility model is a control principle diagram of an intelligent protective device for underwater structure of a jacket.

[0029] In the figure: 1. anode system; 11. waterproof cable; 12. anode system unit; 2. sensor; 3. cable assembly; 31. cathode cable; 32. anode cable; 33. signal cable; 4. intelligent multi-channel power supply; 41. control system; 411. cathodic protection parameter database; 412. data receiving module; 413. judgment module; 414. adjustment module; 415. remote communication module; 416. fault judgment module; 417. early warning module; 5. conductor rack; 6. deck. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0031] In the description of the present invention, it should be understood that the terms "center", "lateral", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0033] Figure 1 Schematic diagram of the structure of this embodiment. Figure 1 As shown, this embodiment provides an intelligent protection device for underwater structures of a conductor frame, including an anode system 1, a sensor 2, a cable assembly 3 and an intelligent multi-channel power supply 4. The anode system 1 and the sensor 2 are both installed on the conductor frame 5. The cable assembly 3 at least includes a cathode cable 31, an anode cable 32 and a signal cable 33, wherein the negative pole of the intelligent multi-channel power supply 4 is connected to the upper part of the conductor frame 5 through the cathode cable 31, and the positive pole of the intelligent multi-channel power supply 4 is connected to the anode system 1 through the anode cable 32; the intelligent multi-channel power supply 4 is provided with a control system 41, and the control terminal of the control system 41 is connected to the sensor 2 through the signal cable 33.

[0034] The intelligent protection device for the underwater structure of the conductor frame is provided with an anode system 1, a sensor 2, a cable assembly 3 and an intelligent multi-channel power supply 4. The anode system 1 is used to effectively protect the conductor frame 5 to prevent the corrosion of the conductor frame 5 by seawater. The sensor 2 can be communicated with a control system 41 provided inside the intelligent multi-channel power supply 4 to realize the intelligent protection of the underwater structure of the conductor frame.

[0035] In this embodiment, a plurality of anode systems 1 are configured, and both ends of each anode system 1 are fixedly connected to the conduit frame 5 .

[0036] Specifically, the anode system 1 is set to be stretched, including multiple sections of waterproof cables 11 and multiple anode system monomers 12, and every two adjacent anode system monomers 12 are connected by at least one section of waterproof cable 11. The waterproof cable 11 in this embodiment adopts a multi-core waterproof cable. And the cathode cable 31 and the anode cable 32 also adopt multi-core cables.

[0037] As an optional implementation, the intelligent multi-channel power supply 4 includes a cabinet, that is, the intelligent multi-channel power supply 4 adopts a cabinet structure for easy installation and use. In this embodiment, the cabinet is arranged on the deck 6 of the conductor frame 5 or in an electrical equipment room located above the conductor frame 5.

[0038] As an optional embodiment, multiple sensors 2 are arranged from the upper part to the lower part of the catheter frame 5. In this embodiment, the sensor 2 adopts a multi-parameter sensor, which can at least collect parameters such as cathodic protection potential and cathodic protection current. The model and structure of the sensor can be selected from those available on the market according to the needs of use, and no specific limitation is made here.

[0039] During specific installation and use, the multiple multi-parameter sensors in this embodiment are respectively installed on the conductor frame 5 through the mounting flanges. In particular, the sensors 2 need to be installed at typical locations on the conductor frame 5 that require key protection, so as to better monitor and protect them.

[0040] As an optional implementation, Figure 2 It is the control principle diagram of this embodiment, such as Figure 2 As shown, the control system 41 in this embodiment includes a single chip microcomputer, which can be selected from existing products on the market according to actual use needs, and the specific model is not specifically limited here. The control system 41 at least includes a cathodic protection parameter database 411, a data receiving module 412, a judgment module 413 and an adjustment module 414.

[0041] The data receiving module 412 is used to receive the data fed back by the sensor 2; the judging module 413 is used to compare the data fed back by the sensor with the data in the cathode protection parameter database 411, and judge the protection status of the cathode of the conductor frame according to the comparison result;

[0042] The regulating module 414 can select a suitable protection potential to automatically adjust the output of each channel of the intelligent multi-channel power supply 4, so that it can emit a suitable cathode protection current, which acts on the conduit rack 5 through the anode system 1, thereby making each part of the conduit rack 5 in a good protection state.

[0043] Optionally, the control system 41 in this embodiment further includes a remote communication module 415 , and the remote communication module 415 can transmit data to the host computer system via optical fiber or satellite communication.

[0044] Preferably, the control system 41 further includes a fault judgment module 416 and an early warning module 417 .

[0045] Among them, the fault judgment module 416 is used to automatically judge the fault cause of the cathodic protection system according to preset conditions; the early warning module 417 is used to provide sound and / or light early warning through one or more of a display screen, an alarm light or a built-in speaker.

[0046] Specifically, the data fed back by the sensor 2 and the operation data of the intelligent multi-channel power supply 4 can be combined with the built-in cathodic protection parameter database 411 to perform intelligent analysis and evaluation of the data, automatically determine the abnormal parameters of the cathodic protection, and then automatically determine the cause of the fault of the cathodic protection system. Sound and light warnings can be given in real time through the display screen, alarm lights and built-in speakers.

[0047] The installation method of the intelligent protection device for the underwater structure of the jacket comprises the following steps:

[0048] S1: Before the construction of the conductor frame platform, the anode system monomer 12 and the multi-core waterproof cable 11 in the anode system 1 are assembled and installed to form the anode system 1;

[0049] S2: At the initial stage of the construction of the conductor frame platform, the sensor 2 is installed on the conductor frame 5 through a flange connection. The sensor 2 adopts a multi-parameter sensor. The signal cable 33 used to connect the sensor 2 is temporarily fixed on the top of the conductor frame 5. The sensors 2 are placed at typical positions from the top to the bottom of the conductor frame 5.

[0050] S3: In the middle and late stages of the construction of the conductor frame platform, the anode system 1 is installed on the conductor frame 5 by means of tensioning and fixing at both ends. The anode cable 32 used to connect the intelligent anode system 1 is temporarily fixed on the top of the conductor frame 5. Multiple anode systems 1 can be installed on the entire conductor frame 5.

[0051] S4: After the conductor frame platform is installed in place at sea, the intelligent multi-channel power supply 4 is placed on the deck of the conductor frame 5 or in the upper module electrical room; one end of the cathode cable 31 is connected to the upper part of the conductor frame 5 by welding, and the other end is connected to the negative electrode of the intelligent multi-channel power supply 4; the anode cable 32 is connected to the positive electrode of the intelligent multi-channel power supply 4, and the signal cable 33 is connected to the wiring terminal of the control system 41 in the intelligent multi-channel power supply 4.

[0052] S5: After checking that everything is correct, the intelligent multi-channel power supply 4 is connected to the power supply, the sensor 2 collects the cathodic protection potential and the cathodic protection current, and the control system 41 automatically determines the cathodic protection status of the catheter rack through the data fed back by the sensor 2, and adjusts the output of each channel of the intelligent multi-channel power supply 4, and sends out a suitable cathodic protection current, which acts on the catheter rack 5 through the anode system 1, so that each part of the catheter rack 5 is in a good protection state.

[0053] This intelligent protection device for underwater structures of jackets is easy and quick to install, requires less underwater work, is more economical, and has the functions of automatic adjustment and fault diagnosis and early warning of cathodic protection status, solving the problem of difficult operation for non-professionals. It can be applied to offshore platforms, steel pile docks, steel piles of offshore wind turbines, etc.

[0054] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An intelligent protection device for underwater structure of a jacket, characterized in that: Includes anode system, sensors, cable assemblies and intelligent multi-channel power supply, including: The anode system and the sensor are both installed on the conduit frame to be protected; The cable assembly at least includes a cathode cable, an anode cable and a signal cable, wherein: the negative electrode of the intelligent multi-channel power supply is connected to the upper part of the conduit frame through the cathode cable, and the positive electrode of the intelligent multi-channel power supply is connected to the anode system through the anode cable; the intelligent multi-channel power supply is provided with a control system, and the control terminal of the control system is connected to the sensor through the signal cable; The anode system is configured in plurality, and both ends of each anode system are fixedly connected to the conduit frame respectively; the anode system comprises a plurality of sections of waterproof cables and a plurality of anode system monomers, and every two adjacent anode system monomers are connected by at least one section of the waterproof cable.

2. The intelligent protection device for underwater structure of a jacket according to claim 1, characterized in that: The intelligent multi-channel power supply comprises a cabinet, and the cabinet is arranged on the deck of the conductor frame or in an electrical equipment room located on the upper part of the conductor frame.

3. The intelligent protection device for underwater structure of a jacket according to claim 1, characterized in that: A plurality of sensors are arranged from the upper part to the lower part of the catheter rack.

4. The intelligent protection device for underwater structure of a jacket according to claim 1, characterized in that: The control system at least includes a cathodic protection parameter database, a data receiving module, a judgment module and an adjustment module, wherein: The data receiving module is used to receive the data fed back by the sensor; The judgment module is used to compare the data fed back by the sensor with the data in the cathode protection parameter database, and judge the protection status of the cathode of the conductor rack according to the comparison result; The regulating module can select a suitable protection potential to automatically regulate the output of each channel of the intelligent multi-channel power supply so that it can emit a suitable cathode protection current to act on the catheter rack through the anode system.

5. The intelligent protection device for underwater structure of a jacket according to claim 4, characterized in that: The control system also includes a remote communication module, wherein: The remote communication module can transmit data to the host computer system via optical fiber or satellite communication.

6. The intelligent protection device for underwater structure of a jacket according to claim 5, characterized in that: The control system also includes a fault judgment module and an early warning module, wherein: The fault judgment module is used to automatically judge the fault cause of the cathodic protection system according to preset conditions; The early warning module is used to provide sound and / or light early warning through one or more of a display screen, an alarm light or a built-in speaker.

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