Antifouling treatment device for ship seawater piping system

By installing copper alloy pipe anodes and grounding devices inside titanium alloy seawater pipes, copper ions are used to prevent marine organisms from attaching, thus solving the problem of blockage in titanium alloy pipes and achieving antifouling effect and extended service life.

CN223764653UActive Publication Date: 2026-01-06SHANGHAI SHENBI MARINE EQUIP CO LTD
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Patent Information

Application Number
CN202520353247.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-01-06
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

Existing marine titanium alloy seawater pipelines are susceptible to attachment by marine organisms, which can reduce the pipe diameter or cause blockages, affecting the normal operation of the system.

Method used

A copper alloy pipe anode, grounding screw, sealing gasket and grounding wire are installed inside the titanium alloy pipe. The copper ions released by the copper alloy pipe anode prevent marine organisms from attaching. The copper alloy pipe is fixed by flange connection, forming an antifouling treatment device.

Benefits of technology

It effectively prevents marine organisms from attaching, keeps pipelines unobstructed, extends service life, is safe and reliable, and does not affect system pressure or flow area.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an antifouling treatment device for a ship seawater piping system, which comprises a copper alloy pipeline anode, a grounding screw, a sealing gasket and a grounding wire, and is characterized in that the copper alloy pipeline anode is fixedly arranged on the inner wall of a titanium alloy pipeline of the ship seawater piping system; a grounding bolt hole is formed in the titanium alloy pipeline; the grounding screw is arranged in the grounding bolt hole; the sealing gasket is sleeved on the grounding screw; and a grounding wire is connected with the grounding screw. According to the device, a large number of copper ions can be simply, conveniently, effectively and continuously added into the titanium alloy pipe system, the content of the copper ions in the titanium alloy pipe system is increased, and therefore marine organisms are prevented from being attached to the titanium alloy pipe system through the copper ions.
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Description

Technical Field

[0001] This utility model relates to an accessory for ship pipelines, specifically to a fouling prevention device for ship seawater piping systems. Background Technology

[0002] With the development of the shipbuilding industry, human activities are gradually extending into the open ocean and deep sea areas, making the corrosion problem of pipelines by seawater increasingly prominent. The current solution is to use titanium alloys as the material for ship pipelines. This is because titanium alloys have excellent resistance to seawater corrosion, low specific gravity, excellent mechanical properties, excellent resistance to erosion corrosion, high strength, and low density, among other advantages. Furthermore, titanium alloys have good biocompatibility; almost all marine organisms can attach to their surfaces. However, precisely because of this good biocompatibility, after prolonged underwater use, the attachment and growth of marine organisms on the pipeline surface can lead to a reduction in pipe diameter or even blockage, thus affecting the normal operation of the pipeline system. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an antifouling treatment device for marine seawater piping systems, which can protect titanium alloy seawater piping systems from contamination by marine organisms and prevent the pipe diameter from being reduced or even blocked.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model for antifouling treatment device for marine seawater piping systems is as follows:

[0005] The system includes a copper alloy pipe anode, a grounding screw, a sealing gasket, and a grounding wire. The copper alloy pipe anode is fixedly installed on the inner wall of the titanium alloy pipe of the ship's seawater piping system. A grounding bolt hole is opened on the titanium alloy pipe. The grounding screw is installed in the grounding bolt hole. The sealing gasket is sleeved on the grounding screw. The grounding wire is connected to the grounding screw.

[0006] In another embodiment, the sealing gasket is disposed between the outer wall of the titanium alloy pipe and the nut of the grounding screw.

[0007] In another embodiment, the grounding wire is disposed between the sealing gasket and the nut of the grounding screw.

[0008] In another embodiment, the titanium alloy pipe is made of titanium-nickel alloy.

[0009] This utility model also provides another antifouling treatment device for marine seawater piping systems, the technical solution of which is as follows:

[0010] The device includes a titanium alloy pipe, a copper alloy pipe anode, a grounding screw, a sealing gasket, and a grounding wire. The titanium alloy pipe has a grounding bolt hole. The copper alloy pipe anode is fixedly installed on the inner wall of the titanium alloy pipe. The grounding screw is installed in the grounding bolt hole. The sealing gasket is sleeved on the grounding screw. The grounding wire is connected to the grounding screw.

[0011] In another embodiment, the sealing gasket is disposed between the outer wall of the titanium alloy pipe and the nut of the grounding screw.

[0012] In another embodiment, the grounding wire is disposed between the sealing gasket and the nut of the grounding screw.

[0013] In another embodiment, the titanium alloy pipe is made of titanium-nickel alloy.

[0014] In another embodiment, both ends of the titanium alloy pipe are fixedly connected to the pipes of the ship's seawater piping system via flanges.

[0015] The technical effects that this utility model can achieve are:

[0016] This invention can easily, effectively, and continuously add a large amount of copper ions to titanium alloy pipe systems, thereby increasing the copper ion content within the titanium alloy pipe system and using copper ions to prevent marine organisms from attaching to the titanium alloy pipes.

[0017] The use of this invention does not change the pressure of the pipeline system, meets the system pressure requirements, and does not reduce the flow area of ​​the pipeline system.

[0018] This invention will not pose any safety hazards even if the copper alloy anode material is completely consumed, and its application is safe and reliable.

[0019] This invention can effectively enhance the marine organism resistance of titanium alloy pipe systems, and greatly extend the service life and safety and reliability of titanium alloy seawater pipeline systems. Attached Figure Description

[0020] Those skilled in the art will understand that the following description is merely illustrative of the principles of this invention, and these principles can be applied in various ways to achieve many different alternative implementations. These descriptions are only intended to illustrate the general principles of the teachings of this invention and are not intended to limit the inventive concept disclosed herein.

[0021] Embodiments of the present invention are illustrated in conjunction with the accompanying drawings, which are incorporated in and form part of this specification, and together with the foregoing general description and the following detailed description of the drawings, serve to explain the principles of the present invention.

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0023] Figure 1 This is a schematic diagram of the antifouling treatment device for marine seawater piping systems according to this utility model;

[0024] Figure 2 This is a schematic diagram of the present invention from another angle.

[0025] Explanation of the reference numerals in the figure:

[0026] 1 is a copper alloy pipe anode, 2 is a titanium alloy pipe.

[0027] 3 is the grounding bolt hole, and 4 is the grounding screw.

[0028] 5 is the grounding wire, and 6 is the sealing gasket. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art to which this utility model pertains. The terms "first," "second," and similar words used herein do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Words such as "comprising" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, but does not exclude other elements or objects. Words such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0030] like Figures 1 to 2 As shown, the antifouling treatment device for marine seawater piping systems of this utility model is installed on a titanium alloy pipe 2; it includes a copper alloy pipe anode 1, which is fixedly installed on the inner wall of the titanium alloy pipe 2; a grounding bolt hole 3 is opened on the titanium alloy pipe 2, and a grounding screw 4 is installed in the grounding bolt hole 3; a sealing gasket 6 is fitted on the grounding screw 4, and the sealing gasket 6 is installed between the outer wall of the titanium alloy pipe 2 and the nut of the grounding screw 4;

[0031] The grounding screw 4 is connected to the grounding wire 5, which is located between the sealing gasket 6 and the nut of the grounding screw 4.

[0032] Preferably, the material of the titanium alloy pipe 2 is a titanium-nickel alloy.

[0033] This invention provides a sealing gasket 6 at the opening of the titanium alloy pipe 2. Even if the anode 1 of the copper alloy pipe is completely sacrificed, the sealing gasket 6 can still ensure the sealing of the titanium alloy pipe 2.

[0034] In use, the titanium alloy pipe 2 is fixedly connected to the ship's seawater piping system by means of flange clamping, that is, the fixed connection between the titanium alloy pipe 2 and the ship's seawater piping system is achieved by flange.

[0035] The anti-fouling principle of this utility model is as follows:

[0036] This utility model is installed in the seawater piping system of a ship; during the operation of the piping system, the copper alloy pipe anode 1 continuously releases copper ions under the corrosive effect of seawater. The released copper ions have a certain killing effect on marine organisms and slow down the growth of marine organisms, thereby preventing marine organisms from attaching to the titanium alloy pipe, so as to ensure the normal and safe operation of the seawater system.

[0037] Experiments show that the titanium alloy pipe 2 showed no corrosion loss after immersion in seawater for 30 days, had a relatively positive self-corrosion potential and stable potential, a small self-corrosion current, and good corrosion resistance. The copper alloy pipe anode 1 showed corrosion products and corrosion loss after immersion in seawater, had a more negative self-corrosion potential than the titanium alloy, and a larger self-corrosion current, which could generate copper ions that could kill marine organisms to a certain extent.

[0038] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An anti-fouling treatment device for a marine vessel sea water piping system, characterized by, The application relates to a copper alloy pipe anode, a titanium alloy pipe of a ship seawater system, a grounding screw, a sealing gasket and a grounding wire. The sealing gasket is arranged between the outer wall of the titanium alloy pipe and the nut of the grounding screw. The grounding wire is arranged between the sealing gasket and the nut of the grounding screw. The titanium alloy pipe is made of titanium-nickel alloy. The application relates to a titanium alloy pipe, a copper alloy pipe anode, a grounding screw, a sealing gasket and a grounding wire.

2. The anti-fouling treatment device for a ship's sea water piping system according to claim 1, characterized by, The sealing gasket is arranged between the outer wall of the titanium alloy pipe and the nut of the grounding screw.

3. The anti-fouling treatment device for a ship's sea water piping system according to claim 1 or 2, characterized by, The grounding wire is arranged between the sealing gasket and the nut of the grounding screw.

4. The anti-fouling treatment apparatus for a marine water piping system according to claim 1, characterized by The titanium alloy pipe is made of titanium-nickel alloy.

5. An anti-fouling treatment device for a marine vessel sea water piping system, characterised in that, The titanium alloy pipe is fixedly connected with pipes of the ship seawater system through flanges at two ends. ​ ​ ​ ​ ​ 6. The anti-fouling treatment apparatus for a marine water piping system according to claim 5, characterized by ​ 7. The anti-fouling treatment device for a ship's sea water piping system according to claim 5 or 6, characterized by ​ 8. The anti-fouling treatment apparatus for a marine water piping system according to claim 5, characterized by ​ 9. The anti-fouling treatment apparatus for a marine water piping system according to claim 5, characterized by ​