A subsea pipeline cathodic protection monitoring assembly

Abstract

The application discloses a submarine pipeline cathodic protection monitoring assembly, relates to the technical field of submarine pipeline monitoring, and aims to improve the performance of a submarine pipeline cathodic protection monitoring device in terms of installation, maintenance and replacement. The submarine pipeline cathodic protection monitoring assembly comprises a main body, a reference electrode component, a control assembly and a communication component. The reference electrode component comprises a reference electrode component main body and at least one reference electrode arranged on the reference electrode component main body; the reference electrode component main body is arranged in the main body, and the at least one reference electrode is exposed outside the main body. The control assembly comprises a control assembly main body, a control component arranged inside the control assembly main body and a cover plate used for enclosing the control assembly main body; the control assembly main body is arranged in the main body, and the cover plate is exposed outside the main body. The control component is electrically connected with the reference electrode component and a pipeline anode block. The communication component is electrically connected with the control component and is in communication connection with another device.

Description

Technical Field

[0001] This application relates to the field of submarine pipeline monitoring technology, and in particular to a submarine pipeline cathodic protection monitoring component. Background Technology

[0002] Submarine pipelines are widely used for transporting resources such as oil and natural gas, and are of great significance to national energy security and economic development. However, due to the complex and variable marine environment, submarine pipelines are susceptible to corrosion during long-term operation, which affects their safety and service life.

[0003] Cathodic protection technology, as an effective corrosion prevention measure, is widely used in the protection of subsea pipelines. Cathodic protection monitoring devices are configured to monitor the operation of cathodic protection systems on subsea pipelines to determine the effectiveness of the cathodic protection measures implemented.

[0004] However, the unique characteristics of the seabed environment present numerous challenges to the installation, operation, and maintenance of monitoring devices. Existing technologies are not sufficiently adaptable in this regard. Utility Model Content

[0005] The purpose of this application is to provide a cathodic protection monitoring component for subsea pipelines, which aims to improve the performance of cathodic protection monitoring devices for subsea pipelines in terms of installation, operation and maintenance.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] This application provides a cathodic protection monitoring component for a subsea pipeline. The component is electrically connected to a pipeline anode block installed on the subsea pipeline. The component includes: a main body; a reference electrode component, comprising a main body and at least one reference electrode disposed on the main body, the main body being disposed within the main body and the at least one reference electrode exposed outside the main body; a control component, comprising a main body, a control unit disposed inside the main body, and a cover plate for sealing the main body, the main body being disposed within the main body and the cover plate exposed outside the main body; the control unit being electrically connected to the reference electrode component and the pipeline anode block; and a communication component, electrically connected to the control unit and communicatively connected to another device.

[0008] The subsea pipeline cathodic protection monitoring component provided in this application embodiment integrates the main body of the reference electrode component and the main body of the control component within the main body of the subsea pipeline cathodic protection monitoring component. This allows the reference electrode component and the control component to be securely fixed integrally within the main body, facilitating installation and protecting them from impacts, thereby extending their service life. Simultaneously, at least one reference electrode of the reference electrode component is disposed outside the main body of the subsea pipeline cathodic protection monitoring component, and the control component is electrically connected to the reference electrode component and the pipeline anode block on the subsea pipeline. This allows the control component to acquire the potential data of the at least one reference electrode and the pipeline anode block, and then transmit this data to another device connected to it via a communication component, enabling personnel to understand the cathodic protection operation status of the subsea pipeline based on the potential data. Furthermore, a cover plate for the control component is disposed outside the main body of the subsea pipeline cathodic protection monitoring component, allowing for easy access for maintenance or replacement of the control component. In summary, the subsea pipeline cathodic protection monitoring component provided in this application embodiment improves the convenience of installation, maintenance, and replacement, and extends its service life.

[0009] In some embodiments, the control component includes: a data acquisition device electrically connected to a reference electrode component and a pipe anode block; and a power supply device electrically connected to the data acquisition device for supplying power to the data acquisition device.

[0010] In some embodiments, a sealing ring is provided between the cover plate and the control component body, and the cover plate is sealed to the control component body by screws.

[0011] In some embodiments, the communication component includes: a communication module electrically connected to the control component and communicatively connected to another device; and a rod-shaped member, the communication module being disposed at one end of the rod-shaped member and closer to the sea surface than the main body, the other end of the rod-shaped member being disposed in the main body.

[0012] In some embodiments, the rod-shaped member is a conduit, and the cable for electrically connecting the communication module and the control component is disposed inside the conduit.

[0013] In some embodiments, the body is made of at least cement, and the various components disposed in the body are cast in the body.

[0014] In some embodiments, the subsea pipeline cathodic protection monitoring assembly further includes a connecting clamp, which includes a first clamping plate and a second clamping plate; wherein, after the first clamping plate and the second clamping plate are connected in place by bolts, they clamp the pipeline anode block and the cable for electrically connecting the pipeline anode block and the control components.

[0015] In some embodiments, the subsea pipeline cathodic protection monitoring assembly further includes at least one sacrificial anode block disposed in the body and at least one surface of each sacrificial anode block exposed outside the body.

[0016] In some embodiments, the body includes at least one through passage.

[0017] In some embodiments, at least one lug is provided on the surface of the main body on the side closest to the sea surface. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of a cathodic protection monitoring component for a subsea pipeline according to some embodiments.

[0020] Figure 2 This is a structural diagram of another subsea pipeline cathodic protection monitoring component according to some embodiments.

[0021] Figure 3 This is a structural diagram of a reference electrode component according to some embodiments.

[0022] Figure 4 This is a structural diagram of a control component according to some embodiments.

[0023] Figure 5 This is a structural diagram of a connector according to some embodiments. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or relative positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Unless otherwise specified, the above-mentioned orientational descriptions can be flexibly set in practical applications, provided that the relative positional relationships shown in the accompanying drawings are satisfied.

[0026] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "communication" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.

[0029] In the embodiments of this application, the words "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplarily" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of the words "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0030] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0031] As mentioned above, cathodic protection technology, as an effective corrosion prevention measure, is widely used in the protection of subsea pipelines. Cathodic protection monitoring devices are configured to monitor the operation of cathodic protection on subsea pipelines to determine the effectiveness of the cathodic protection measures implemented.

[0032] The inventors of this application discovered through research that existing cathodic protection monitoring devices are often installed in overly simplistic ways and are not specifically designed for marine environments. This makes them unable to effectively cope with the dynamic changes in the marine environment, leading to problems such as positional displacement and damage during long-term use, thus affecting the accuracy and reliability of monitoring data. Furthermore, some monitoring devices are not securely connected to pipelines after installation, making them susceptible to interference from ocean currents, sediment, and other factors.

[0033] To at least partially address the above problems, this application provides a cathodic protection monitoring component for subsea pipelines. This component is electrically connected to a pipeline anode block installed on the subsea pipeline. The component includes: a main body; a reference electrode component, comprising a main body and at least one reference electrode disposed on the main body, the main body being disposed within the main body and the at least one reference electrode exposed outside the main body; a control component, comprising a main body, a control unit disposed inside the main body, and a cover plate for sealing the main body, the main body being disposed within the main body and the cover plate exposed outside the main body; the control unit being electrically connected to the reference electrode component and the pipeline anode block; and a communication component, electrically connected to the control unit and communicatively connected to another device.

[0034] The subsea pipeline cathodic protection monitoring component provided in this application embodiment integrates the main body of the reference electrode component and the main body of the control component within the main body of the subsea pipeline cathodic protection monitoring component. This allows the reference electrode component and the control component to be securely fixed integrally within the main body, facilitating installation and protecting them from impacts, thereby extending their service life. Simultaneously, at least one reference electrode of the reference electrode component is disposed outside the main body of the subsea pipeline cathodic protection monitoring component, and the control component is electrically connected to the reference electrode component and the pipeline anode block on the subsea pipeline. This allows the control component to acquire the potential data of at least one reference electrode of the reference electrode component and the pipeline anode block, and then transmit this data to another device connected to it via a communication component, enabling personnel to understand the cathodic protection operation status of the subsea pipeline based on the potential data. Furthermore, a cover plate for the control component is disposed outside the main body of the subsea pipeline cathodic protection monitoring component, allowing for easy access for maintenance or replacement of the control component. In summary, the subsea pipeline cathodic protection monitoring component provided in this application embodiment improves the convenience of installation, maintenance, and replacement, and extends its service life.

[0035] The structure of the subsea pipeline cathodic protection monitoring component provided in the embodiments of this application will be described below with reference to the accompanying drawings.

[0036] like Figure 1 and Figure 2 As shown, the subsea pipeline cathodic protection monitoring component 100 provided in this application embodiment is used for electrical connection with the pipeline anode block 200 installed on the subsea pipeline. The subsea pipeline cathodic protection monitoring component 100 includes: a main body 10; a reference electrode component 20, which includes a reference electrode component main body 201 and at least one reference electrode 202 disposed on the reference electrode component main body 201, wherein the reference electrode component main body 201 is disposed in the main body 10 and the at least one reference electrode 202 is exposed outside the main body 10; a control component 30, which includes a control component main body 301, a control component 300 disposed inside the control component main body 301, and a cover plate 302 for closing the control component main body 301, wherein the control component main body 301 is disposed in the main body 10 and the cover plate 302 is exposed outside the main body 10; the control component 300 is electrically connected to the reference electrode component 20 and the pipeline anode block 200; and a communication component 40, which is electrically connected to the control component 300 and communicates with another device.

[0037] In some embodiments, the pipeline anode block 200 can be welded to the subsea pipeline. It should be understood that the connection method between the pipeline anode block 200 and the subsea pipeline is not limited to this.

[0038] In some embodiments, the body 10 is made of at least cement, and the various components disposed in the body 10 are cast within the body 10. Exemplarily, the body 10 is as follows: Figure 2 The cylinder shown is placed with its bottom surface facing down to enhance stability after placement. Exemplarily, the body 10 is a cement component with pressure-resistant sealing properties.

[0039] In some examples, the reference electrode component body 201 and the control component body 301 are cast into a body 10 made of at least cement. This allows the reference electrode component body 201 and the control component body 301 to be firmly fixed to the body 10 through the setting of the cement. Furthermore, due to the high strength (e.g., compressive strength) of cement, when the body 10 is made of at least cement, the body 10 is well-suited for high-pressure applications in the deep sea, protecting the various components housed within the body 10 from damage.

[0040] In some examples, at least one reference electrode 202 and cover plate 302 may be exposed on the same surface of body 10, such as the surface of body 10 near the sea surface.

[0041] In some examples, at least a portion of the communication component 40 may also be disposed within the body 10. In such examples, for the reasons stated above, the communication component 40 can be securely fixed to the body 10, thereby ensuring that the communication component 40 does not deviate from its initial placement position.

[0042] In some examples, the main body 10 is made of cement and reinforced steel. This further enhances the structural strength of the main body 10, thereby extending the service life of the subsea pipeline cathodic protection monitoring assembly 100. It should be understood that the main body 10 may also be made of cement and other reinforcing elements besides reinforced steel.

[0043] In other embodiments, in addition to cement, the body 10 may also be made of any other suitable material suitable for use on the seabed and capable of securing the various components disposed in the body 10.

[0044] In some embodiments, since the control unit 300 is electrically connected to the reference electrode unit 20 and the pipe anode block 200, the control unit 300 can acquire at least one of the following: first potential data of at least one reference electrode 202 and second potential data of the pipe anode block 200; or the difference between the first potential data of at least one reference electrode 202 and the second potential data of the pipe anode block 200.

[0045] In some examples, after the control unit 300 acquires first potential data through the at least one reference electrode 202 and second potential data through the pipeline anode block 200, the communication unit 40 can acquire the first and second potential data and send them to another device (e.g., an operator's computer) communicatively connected to the communication unit 40, so that the operator can calculate the difference between the two based on the received first and second potential data. For example, when the difference between the first and second potential data is within a specified numerical range, the cathodic protection of the subsea pipeline can be considered to be operating well, and no maintenance of the subsea pipeline or related components is required.

[0046] In other examples, the difference is that after the control unit 300 acquires the first potential data and the second potential data, it calculates the difference between the two data. Then, the communication unit 40 acquires this difference and sends it to another device. In this way, the operator (or the other device) can determine the cathodic protection operation status of the subsea pipeline based on this difference.

[0047] In some other examples, after calculating the difference between the first potential data and the second potential data, the control unit 300 also determines whether the cathodic protection of the subsea pipeline is operating well within the specified numerical range. Subsequently, the communication unit 40 sends the judgment result of the control unit 300 to another device.

[0048] The reference electrode component 20 in the subsea pipeline cathodic protection monitoring component 100 provided in the embodiments of this application will be described exemplarily below with reference to the accompanying drawings.

[0049] like Figure 3 As shown, the reference electrode component body 201 is generally cuboid, and at least one reference electrode 202 can be disposed on the same surface of the reference electrode component body 201. Exemplarily, the at least one reference electrode 202 can be snap-fitted, welded to the reference electrode component body 201, or otherwise disposed on the reference electrode component body 201.

[0050] exist Figure 3 The diagram shows two reference electrodes 202 of identical shape and size, positioned at opposite ends of the same surface of the reference electrode component body 201. In this configuration, for example, data related to the cathodic protection operation of the subsea pipeline can be calculated based on the average potential data of these two reference electrodes 202, thereby improving the accuracy of monitoring results. Furthermore, using two or more reference electrodes 202 provides multiple layers of protection; that is, even if some of the reference electrodes 202 are damaged or fail, data related to the cathodic protection operation of the subsea pipeline can still be obtained through the remaining reference electrodes 202.

[0051] It should be understood that, Figure 3 The shape of the reference electrode component body 201, the number and shape of the reference electrodes 202 shown are merely examples, and this application is not limited thereto.

[0052] In some examples, a connector 203 is provided on one side surface of the reference electrode component body 201, through which at least one reference electrode 202 is electrically connected to the control component 300 via a cable and the connector 203. Exemplarily, the connector 203 can be a prior art connector suitable for use in marine environments, such as a pressure-resistant and waterproof connector. The waterproof connector 203 can seal the electrical connection between the control component 300 and the at least one reference electrode 202.

[0053] The control component 30 in the cathodic protection monitoring component 100 for subsea pipelines provided in this application will be described exemplarily below with reference to the accompanying drawings.

[0054] In some embodiments, such as Figure 4 As shown, the control component 300 includes: a data acquisition device 303, the data acquisition device 303 being connected to the reference electrode component 20 and the pipeline anode block 200 (e.g., Figure 1 (As shown) Electrical connection; and power supply device 304, which is electrically connected to data acquisition device 303 to supply power to data acquisition device 303. Data acquisition device 303 and power supply device 304 are disposed in control component body 301. A sealing ring 305 is provided between cover plate 302 and control component body 301. Cover plate 302 is sealed to control component body 301 by screws.

[0055] In some examples, the data acquisition device 303 can be any component capable of acquiring data related to the cathodic protection operation of the subsea pipeline, such as a microprocessor. The power supply device 304 can be, for example, a battery.

[0056] In this embodiment, the data acquisition device 303 and the power supply device 304 that powers it are sealed within the control component body 301 to prevent damage or malfunction of components due to water leakage or other problems during use, thereby ensuring the accuracy of the acquired data related to the cathodic protection operation of the subsea pipeline. Furthermore, the cover plate 302 is sealed to the control component body 301 with screws, allowing for easy removal of the cover plate 302 for inspection or replacement.

[0057] In some examples, reference Figure 4 The control component body 301 is generally cylindrical, with an internal cavity for accommodating the data acquisition device 303 and the power supply device 304. It should be understood that the control component body 301 provided in this embodiment may also have other suitable shapes and structures.

[0058] In some examples, the cover plate 302 may be made of materials suitable for marine environments, such as stainless steel, to extend the service life of the subsea pipeline cathodic protection monitoring assembly 100.

[0059] In some examples, such as Figure 4 As shown, the cover plate 302 has multiple holes for installing waterproof connectors. This allows cables for electrically connecting the data acquisition device 303 to other components (such as the reference electrode component 20) to pass through the control assembly 30 via the waterproof connectors, thereby electrically connecting the data acquisition device 303 to other components and ensuring the waterproof seal of the subsea pipeline cathodic protection monitoring assembly 100.

[0060] In some examples, the main body 10 also contains multiple cable trays (not shown) and connectors (e.g., tees) for connecting these cable trays. In this example, cables for electrically connecting the data acquisition device 303 to other components (e.g., the reference electrode component 20) can pass through the cable trays within the main body 10 after exiting the control assembly 30. This provides better protection for the cables from damage.

[0061] The communication component 40 in the subsea pipeline cathodic protection monitoring assembly 100 provided in the present application will be described exemplarily below with reference to the accompanying drawings.

[0062] In some embodiments, continue to refer to Figure 2 The communication component 40 includes: a communication module 401, which is electrically connected to the control component 300 and communicatively connected to another device; and a rod-shaped member 402, wherein the communication module 401 is disposed at one end of the rod-shaped member 402 and is closer to the sea surface than the main body 10, and the other end of the rod-shaped member 402 is disposed in the main body 10.

[0063] In this embodiment, the communication module 401 is supported by the rod-like member 402 at a position higher than the main body 10. This ensures that after the subsea pipeline cathodic protection monitoring assembly 100 is placed on the seabed, the communication module 401 is less likely to be covered by seabed sediment, thus preventing interference with communication and ensuring that data related to the cathodic protection operation of the subsea pipeline can be transmitted to another device via the communication module 401.

[0064] For example, the communication module 401 can be a message transceiver device using any suitable communication technology (such as underwater acoustic communication technology).

[0065] In some examples, the rod-shaped member 402 is a conduit in which cables for electrically connecting the communication module 401 and the control unit 300 are disposed.

[0066] For example, the cable for electrically connecting the communication module 401 and the control component 300 extends downward from the communication module 401 inside the conduit, then passes through the wiring channel communicating with the control component 300 and connects to the control component 300.

[0067] In some examples, the rod 402 may be made of materials suitable for marine environments, such as stainless steel, to extend the service life of the subsea pipeline cathodic protection monitoring assembly 100.

[0068] The other components included in the cathodic protection monitoring assembly 100 for submarine pipelines provided in this application embodiment will be described exemplarily below with reference to the accompanying drawings.

[0069] In some embodiments, the subsea pipeline cathodic protection monitoring assembly 100 further includes: a connecting clip 70 (e.g., Figure 5 As shown, the connecting clamp 70 includes a first clamping plate 701 and a second clamping plate 702. After the first clamping plate 701 and the second clamping plate 702 are connected in place by bolts 703, they clamp the pipe anode block 200 and the cable (not shown) for electrically connecting the pipe anode block 200 and the control component 300.

[0070] by Figure 5 For example, after the first clamping plate 701 and the second clamping plate 702 are connected in place by bolts, the gap between the first clamping plate 701 and the second clamping plate 702 is larger at one end and smaller at the other, roughly in the shape of a "T". This allows the larger gap to clamp the pipeline anode block 200, while the smaller gap clamps the cables used for electrically connecting the pipeline anode block 200 and the control component 300. Thus, the cables used for electrically connecting the pipeline anode block 200 and the control component 300 can be fixed to the pipeline anode block 200 using the connecting clamp 70, facilitating the acquisition of data related to the cathodic protection operation of the subsea pipeline based on the pipeline anode block 200.

[0071] In some examples, continue to refer to Figure 5 Bolt 703 can be secured with wing nut 704 for easy tightening and loosening.

[0072] Figure 5 Two sets of bolts 703 and wing nuts 704 are shown, which helps to improve the secure fixing of the pipe anode block 200 and the aforementioned cable. However, it should be understood that the embodiments of this application do not limit the number, shape, etc. of the bolts 703 and nuts.

[0073] In some embodiments, continue to refer to Figure 2 The subsea pipeline cathodic protection monitoring assembly 100 further includes: at least one sacrificial anode block 50, which is disposed within the body 10 and at least one surface of each sacrificial anode block 50 is exposed outside the body 10. Exemplarily, Figure 2Two sacrificial anode blocks 50 are shown in the figure.

[0074] In such an embodiment, the provision of at least one sacrificial anode block 50 enables cathodic protection of the subsea pipeline cathodic protection monitoring component 100 itself, thereby effectively preventing the subsea pipeline cathodic protection monitoring component 100 from rusting and corrosion, and extending the service life of the subsea pipeline cathodic protection monitoring component 100.

[0075] In some embodiments, the body 10 includes at least one through channel (not shown in the figures). Exemplarily, each through channel is a vent pipe with a sealing function. For example, each through channel has sealing elements at both ends. For example, the at least one through channel can be in a sealed state when the subsea pipeline cathodic protection monitoring assembly 100 is placed in place.

[0076] In some examples, the main body 10 may include at least one through-channel arranged in the vertical direction. In such examples, during the process of placing the subsea pipeline cathodic protection monitoring component 100 downward from the sea surface, vertical water flow and air flow can pass through the main body 10 via the at least one through-channel, thereby reducing the resistance experienced by the subsea pipeline cathodic protection monitoring component 100 in the vertical direction and facilitating the stability of the subsea pipeline cathodic protection monitoring component 100.

[0077] In other examples, the main body 10 may include at least one through-channel arranged in the horizontal direction. In this example, horizontal water flow and air flow can pass through the main body 10 through the at least one through-channel, thereby reducing the resistance experienced by the subsea pipeline cathodic protection monitoring component 100 in the horizontal direction and preventing the subsea pipeline cathodic protection monitoring component 100 from tipping over.

[0078] It should be understood that the main body 10 may also include at least one through channel arranged in a vertical direction and at least one through channel arranged in a horizontal direction. Alternatively, the main body 10 may also include at least one through channel arranged in directions other than vertical and horizontal. This application does not impose any limitations on this.

[0079] In some embodiments, refer again Figure 2 At least one lifting lug 60 is provided on the surface of the main body 10 near the sea surface. Exemplarily, Figure 2 Three lugs 60 are shown.

[0080] In this embodiment, the at least one lifting lug 60 can be used to hoist the cathodic protection monitoring component 100 of the subsea pipeline, thereby facilitating the placement and retrieval of the cathodic protection monitoring component 100 of the subsea pipeline, or the adjustment of the position of the cathodic protection monitoring component 100 of the subsea pipeline.

[0081] It should be understood that Figure 2 The number, shape, and position of the lifting lugs 60 shown are merely examples, and this application is not limited thereto. Additionally, by way of example, the lifting lugs 60 may be made of materials suitable for marine environments, such as stainless steel, to extend the service life of the subsea pipeline cathodic protection monitoring assembly 100.

[0082] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A cathodic protection monitoring component for subsea pipelines, used for electrical connection with a pipeline anode block installed on the subsea pipeline, characterized in that, The cathodic protection monitoring component for the subsea pipeline includes: main body; A reference electrode component, the reference electrode component comprising a reference electrode component body and at least one reference electrode disposed on the reference electrode component body, the reference electrode component body being disposed within the body and the at least one reference electrode being exposed outside the body; A control assembly includes a control assembly body, a control component disposed inside the control assembly body, and a cover plate for closing the control assembly body, wherein the control assembly body is disposed within the body and the cover plate is exposed outside the body; the control component is electrically connected to the reference electrode component and the pipeline anode block; A communication component, which is electrically connected to the control component and communicatively connected to another device.

2. The subsea pipeline cathodic protection monitoring component according to claim 1, characterized in that, The control component includes: Data acquisition device, the data acquisition device being electrically connected to the reference electrode component and the pipeline anode block; and A power supply device, which is electrically connected to the data acquisition device for supplying power to the data acquisition device.

3. The subsea pipeline cathodic protection monitoring component according to claim 1 or 2, characterized in that, A sealing ring is provided between the cover plate and the main body of the control component, and the cover plate is sealed to the main body of the control component by screws.

4. The subsea pipeline cathodic protection monitoring component according to claim 1 or 2, characterized in that, The communication component includes: A communication module, electrically connected to the control component and communicatively connected to another device; and A rod-shaped member, wherein the communication module is disposed at one end of the rod-shaped member and closer to the sea surface than the main body, and the other end of the rod-shaped member is disposed in the main body.

5. The subsea pipeline cathodic protection monitoring component according to claim 4, characterized in that, The rod-shaped member is a pipe, and the cable for electrically connecting the communication module and the control component is disposed inside the pipe.

6. The subsea pipeline cathodic protection monitoring component according to claim 1 or 2, characterized in that, The main body is made of at least cement, and the various components disposed in the main body are cast in the main body.

7. The subsea pipeline cathodic protection monitoring component according to claim 1 or 2, characterized in that, The cathodic protection monitoring component for the subsea pipeline also includes: A connecting clamp, comprising a first clamping plate and a second clamping plate; wherein, after the first clamping plate and the second clamping plate are connected in place by bolts, they clamp the pipe anode block and the cable for electrically connecting the pipe anode block and the control component.

8. The subsea pipeline cathodic protection monitoring component according to claim 1 or 2, characterized in that, The cathodic protection monitoring component for the subsea pipeline also includes: At least one sacrificial anode block is disposed in the body and at least one surface of each sacrificial anode block is exposed outside the body.

9. The subsea pipeline cathodic protection monitoring component according to claim 1 or 2, characterized in that, The main body includes at least one through channel.

10. The subsea pipeline cathodic protection monitoring component according to claim 1 or 2, characterized in that, At least one lifting lug is provided on the surface of the main body on the side closest to the sea surface.

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