Marine cooling system anti-corrosion device and ship

By using removable corrosion-resistant metal parts inside the protective box to connect to the cable in the seawater cooling system, the problem of inconvenient replacement of existing devices is solved, achieving convenient corrosion protection and flexible installation.

CN224349107UActive Publication Date: 2026-06-12GUANGZHOU WENCHONG SHIPYARD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-25
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The existing anti-corrosion devices for seawater cooling systems are inconvenient to replace due to the weight of the sacrificial flange and sacrificial short pipe and the limited installation location, which consumes manpower and time.

Method used

The system utilizes removable corroded metal parts within the protective enclosure to connect to the seawater cooling system piping via cables. It employs the chemical activity of the corroded metal parts for electrochemical protection, facilitating easy replacement and allowing for unrestricted installation locations.

Benefits of technology

It achieves corrosion protection for seawater cooling systems, facilitates the replacement of corroded metal parts, reduces labor and time costs, and allows for flexible installation locations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to ship technology field especially relates to a seawater cooling system anticorrosive device and ship, seawater cooling system anticorrosive device includes protection box, the protection box has the accommodation cavity, the protection box is provided with the apron, the apron can open or close with the accommodation cavity relative, corrosion metal piece, the chemical nature of corrosion metal piece is more active than iron, corrosion metal piece is detachably arranged in the protection box, cable, one end of cable is connected with corrosion metal piece electricity, the other end of cable is connected with the pipeline of seawater cooling system from the protection box and goes out. The utility model discloses the protection of seawater cooling system simultaneously, is convenient to replace, and the installation position is not restricted.
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Description

Technical Field

[0001] This utility model relates to the field of marine technology, and in particular to a corrosion prevention device for a seawater cooling system and a ship. Background Technology

[0002] Seawater cooling systems are one of the most important auxiliary power systems on ships, playing a crucial role in their normal operation. However, seawater is a complex electrolyte solution, rich in various salts, dissolved oxygen, and marine microorganisms, making it highly susceptible to electrochemical corrosion of shipboard pipes and equipment. Once corroded, these pipes and equipment may perforate or rupture, posing a risk of seawater leakage and ultimately threatening the ship's navigational safety.

[0003] Currently, commonly used corrosion protection devices employ sacrificial flanges or sacrificial short pipes made of untreated carbon steel. Because seawater cooling system piping diameters are generally large, the sacrificial flanges and short pipes must match the pipe diameter, resulting in their weight and making subsequent replacement inconvenient, labor-intensive, and time-consuming. Furthermore, sacrificial flanges and short pipes can only be installed between pipe flanges, limiting their installation location and making replacement difficult.

[0004] Therefore, a corrosion-resistant device for seawater cooling systems and a vessel are needed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a corrosion protection device for a seawater cooling system and a ship, which can protect the seawater cooling system, facilitate replacement, and has no restrictions on the installation location.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Corrosion protection devices for seawater cooling systems include:

[0008] A protective box having a receiving cavity and a cover plate that can be opened or closed relative to the receiving cavity;

[0009] A corrosive metal component, wherein the chemical activity of the corrosive metal component is greater than that of iron, and the corrosive metal component is detachably housed in the protective box;

[0010] A cable, one end of which is electrically connected to the corroded metal component, and the other end of which passes through the protective box and connects to the piping of the seawater cooling system.

[0011] In some embodiments, the protective box is provided with an observation port, and an observation mirror is installed at the observation port.

[0012] In some embodiments, a bracket is also included, which is fixedly disposed in the protective box. The bracket has a mounting groove, in which the corroded metal part is placed, and the cable is connected to the bracket.

[0013] In some embodiments, the bracket has connecting lugs at both ends, and fasteners pass through the connecting lugs to connect to the protective box.

[0014] In some embodiments, one end of the cable connected to the bracket has a first connecting lug, and the first connecting lug is connected to the bracket.

[0015] In some embodiments, the first connecting lug is provided with a first mounting hole, and the bracket is provided with a second mounting hole opposite to the first mounting hole. The connector passes through the first mounting hole and connects to the second mounting hole.

[0016] In some embodiments, a second connecting lug is provided at one end of the cable that connects to the seawater cooling system.

[0017] In some embodiments, a handle is provided at the end of the cover plate opposite to the receiving cavity.

[0018] In some embodiments, the protective box is provided with a stuffing box at the location where the cable exits.

[0019] The ship includes a hull, a seawater cooling system, and a seawater cooling system anti-corrosion device as described above. Both the seawater cooling system and the seawater cooling system anti-corrosion device are installed in the hull, and the cable of the seawater cooling system anti-corrosion device is connected to the pipeline of the seawater cooling system.

[0020] The beneficial effects of this utility model are:

[0021] This utility model provides a corrosion protection device for a seawater cooling system. The protective box has a receiving cavity and a cover that can be opened or closed relative to the receiving cavity. The corrosive metal component is chemically more reactive than iron and is detachably housed within the protective box. One end of a cable is electrically connected to the corrosive metal component, and the other end extends from the protective box and connects to the piping of the seawater cooling system. Through this arrangement, the cable connects the corrosive metal component and the piping of the seawater cooling system. During electrochemical corrosion by seawater, the more reactive nature of the corrosive metal component allows it to exchange electrons with the seawater medium through the cable, resulting in corrosion and thus protecting the piping of the seawater cooling system. Once the corrosive metal component is sufficiently corroded, the cover can be opened to remove it, and a new component can be replaced. This seawater cooling system corrosion protection device not only protects the seawater cooling system but also facilitates replacement and is not limited by installation location.

[0022] The present invention provides a ship, including a hull, a seawater cooling system, and a seawater cooling system anti-corrosion device as described above. The device protects the seawater cooling system, is easy to replace, and is not limited in its installation location. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of an anti-corrosion device for a seawater cooling system according to this utility model;

[0025] Figure 2 This is a top view of the protective box for the anti-corrosion device of a seawater cooling system according to this utility model;

[0026] Figure 3 This is a side view of the protective box in the anti-corrosion device of a seawater cooling system according to this utility model.

[0027] In the picture:

[0028] 1. Protective box; 11. Cover plate; 111. Handle; 2. Corroded metal parts; 3. Cable; 31. Second connecting lug; 32. First connecting lug; 4. Bracket; 41. Mounting groove; 42. Connecting lug plate; 5. Stuffing box; 6. Observation mirror. Detailed Implementation

[0029] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0030] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, 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, method, 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, method, article, or apparatus that includes that element.

[0031] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0032] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0033] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0034] Seawater cooling systems are one of the important auxiliary power systems of ships, playing a crucial role in the normal operation of the vessel. To prevent seawater corrosion of the cooling system's pipes and the risk of seawater leakage, and to ensure the system is easily replaceable and can be installed anywhere, such as… Figures 1-3 As shown, this utility model provides a corrosion protection device for a seawater cooling system. The corrosion protection device for a seawater cooling system includes a protective box 1, corrosive metal parts 2, and cables 3.

[0035] The protective box 1 has a receiving cavity and a cover 11, which can be opened or closed relative to the receiving cavity. The corrosive metal part 2 is chemically more reactive than iron and is detachably installed in the protective box 1. One end of the cable 3 is electrically connected to the corrosive metal part 2, and the other end of the cable 3 extends out of the protective box 1 and connects to the piping of the seawater cooling system.

[0036] With the above setup, cable 3 connects the corroded metal component 2 and the piping of the seawater cooling system. During the electrochemical corrosion process in the seawater, the more chemically active corroded metal component 2 exchanges electrons with the seawater medium through cable 3, causing it to corrode and thus protecting the piping of the seawater cooling system. Once the corroded metal component 2 is fully corroded, it can be removed by opening cover 11 and replaced with a new one. This seawater cooling system anti-corrosion device not only protects the seawater cooling system but also facilitates replacement and is not limited by installation location.

[0037] In some embodiments, the material of the corroded metal component 2 is zinc. Utilizing the principle that zinc is more chemically reactive than iron, zinc is preferentially corroded during electrochemical corrosion. The piping in seawater cooling systems is typically galvanized steel pipe, and the connections between pipes are galvanized steel flanges. Because galvanized steel pipes and flanges have other metals as a base, while the corroded metal component 2, made of pure zinc, has no other metal base, it is preferentially corroded under the same environment, thus protecting the system piping.

[0038] In some embodiments, the protective housing 1 is provided with an observation port, and an observation lens 6 is installed at the observation port. This arrangement facilitates observation of the corrosion status of the corroded metal component 2 located inside the receiving cavity through the observation lens 6. When the corroded metal component 2 is corroded to the point of being unable to function, it can be directly replaced.

[0039] In some embodiments, a bracket 4 is also included, which is fixedly disposed in the protective box 1. The bracket 4 has a mounting groove 41 in which the corroded metal part 2 is placed, and the cable 3 is connected to the bracket 4. The bracket 4 is used to install and position the corroded metal part 2. Since the corroded metal part 2 is located in the mounting groove 41, it can be prevented from shaking. In this embodiment, both the protective box 1 and the bracket 4 are made of carbon steel.

[0040] In some embodiments, the bracket 4 has connecting lugs 42 at both ends, and fasteners pass through the connecting lugs 42 to connect with the protective box 1. Specifically, the fasteners can be bolts, which pass through the connecting lugs 42 to connect with the bottom surface of the protective box 1, thereby fixing the bracket 4 in the protective box 1. The above arrangement facilitates the installation and fixation of the bracket 4.

[0041] In some embodiments, the end of the cable 3 connected to the bracket 4 has a first connecting lug 32, which is connected to the bracket 4. The first connecting lug 32 facilitates electrical connection between the cable 3 and the corroded metal part 2 via the first connecting lug 32 and the bracket 4. In this embodiment, the first connecting lug 32 is made of copper, ensuring good conductivity.

[0042] In some embodiments, the first connecting lug 32 has a first mounting hole, and the bracket 4 has a second mounting hole opposite to the first mounting hole. The connector passes through the first mounting hole and connects to the second mounting hole. In this embodiment, the connector is a bolt, which can stably fix the first connecting lug 32 and prevent the first connecting lug 32 from shifting or falling off the bracket 4 during ship operation.

[0043] In some embodiments, a second connecting lug 31 is provided at the end of the cable 3 that connects to the seawater cooling system. The second connecting lug 31 can be installed at any location in the piping of the seawater cooling system, such as at the flange bolt connection, and the second connecting lug 31 can be clamped to the flange bolt with bolts, or it can be fixed by using pipe clamps on the piping of the seawater cooling system.

[0044] In some embodiments, a handle 111 is provided at the end of the cover 11 away from the receiving cavity. By providing the handle 111, it is convenient for the crew to operate the cover 11, thereby facilitating the movement of the cover 11 so that the protective box 1 can be opened or closed.

[0045] In some embodiments, a stuffing box 5 is provided in the protective box 1 at the position where the cable 3 exits. By providing the stuffing box 5, the gap between the protective box 1 and the cable 3 can be effectively sealed, thereby ensuring that the accommodating cavity of the protective box 1 forms a sealed space. Moreover, the stuffing box 5 can fix the relative position between the cable 3 and the protective box 1, and can also prevent the protective sheath of the cable 3 from being scratched.

[0046] This application also provides a vessel comprising a hull, a seawater cooling system, and a corrosion protection device for the seawater cooling system as described above. Both the seawater cooling system and the corrosion protection device are installed within the hull, and the cable 3 of the corrosion protection device is connected to the piping of the seawater cooling system. The corrosion protection device for the seawater cooling system protects the seawater cooling system, is easy to replace, and its installation location is unrestricted.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A corrosion protection device for a seawater cooling system, characterized in that, include: A protective box (1) has a receiving cavity, and the protective box (1) is provided with a cover plate (11) that can be opened or closed relative to the receiving cavity; Corrosion metal part (2), the corrosion metal part (2) is more chemically active than iron, and the corrosion metal part (2) is detachably installed in the protective box (1); Cable (3), one end of which is electrically connected to the corroded metal part (2), and the other end of which passes through the protective box (1) and is connected to the pipeline of the seawater cooling system.

2. The anti-corrosion device for a seawater cooling system according to claim 1, characterized in that, The protective box (1) is provided with an observation port, and an observation mirror (6) is installed at the observation port.

3. The anti-corrosion device for a seawater cooling system according to claim 1, characterized in that, It also includes a bracket (4), which is fixedly installed in the protective box (1). The bracket (4) has a mounting groove (41), the corroded metal part (2) is placed in the mounting groove (41), and the cable (3) is connected to the bracket (4).

4. The anti-corrosion device for a seawater cooling system according to claim 3, characterized in that, The bracket (4) has connecting ear plates (42) at both ends, and fasteners pass through the connecting ear plates (42) to connect to the protective box (1).

5. The anti-corrosion device for a seawater cooling system according to claim 3, characterized in that, The cable (3) has a first connecting lug (32) at one end connected to the bracket (4), and the first connecting lug (32) is connected to the bracket (4).

6. The anti-corrosion device for a seawater cooling system according to claim 5, characterized in that, The first connecting lug (32) has a first mounting hole, and the bracket (4) has a second mounting hole opposite to the first mounting hole. The connector passes through the first mounting hole and connects to the second mounting hole.

7. The anti-corrosion device for a seawater cooling system according to claim 1, characterized in that, The cable (3) is provided with a second connecting lug (31) at one end where it is connected to the seawater cooling system.

8. The anti-corrosion device for a seawater cooling system according to claim 1, characterized in that, A handle (111) is provided at the end of the cover plate (11) opposite to the receiving cavity.

9. The anti-corrosion device for a seawater cooling system according to claim 1, characterized in that, The protective box (1) is provided with a stuffing box (5) at the position where the cable (3) passes through.

10. A ship, characterized in that, It includes a hull, a seawater cooling system, and a seawater cooling system anti-corrosion device as described in any one of claims 1-9, wherein the seawater cooling system and the seawater cooling system anti-corrosion device are both installed in the hull, and the cable (3) of the seawater cooling system anti-corrosion device is connected to the pipeline of the seawater cooling system.