Novel corrosion-resistant seamless steel pipe for ship

By installing an outer sleeve and a cleaning tooth structure on the outer surface of the seamless steel pipe, the corrosion problem caused by barnacles is solved, achieving efficient cleaning and corrosion prevention of the steel pipe and extending its service life.

CN224201274UActive Publication Date: 2026-05-05JIANGSU WUCHANG NEW MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU WUCHANG NEW MATERIAL TECH CO LTD
Filing Date
2025-05-28
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Seamless steel pipes on existing ships are prone to barnacles during operation, which increases the corrosion rate and affects service life.

Method used

An outer sleeve is fitted onto the outer surface of a seamless steel pipe. The outer sleeve is equipped with a sliding groove and a cleaning seat. The cleaning seat is equipped with cleaning teeth. The cleaning teeth are moved by a rotating shaft and a moving frame. The outer sleeve absorbs external pressure in conjunction with a buffer groove and a buffer plate. The inner surface of the outer sleeve is equipped with a sealing groove and a sealing strip for sealing.

Benefits of technology

It effectively cleans barnacles, reduces corrosion rate, extends service life, and ensures proper fluid transport and movement of the outer casing, preventing rust.

✦ Generated by Eureka AI based on patent content.

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Abstract

According to the technical scheme, the novel corrosion-resistant seamless steel pipe for the ship comprises a pipe body and an outer sleeve, the outer sleeve is connected to the outer surface of the pipe body in a sleeved mode, a sliding groove is formed in the outer surface of the outer sleeve, a cleaning base is installed at the position, located at the sliding groove, of the outer surface of the pipe body, and cleaning teeth are arranged on the outer surface of the cleaning base. A connecting base A is installed on one side of the outer surface of the pipe body, a movable frame is installed on the side, close to the connecting base A, of the outer surface of the outer sleeve, a buffer groove is formed in the portion, close to the outer surface, in the pipe body, a buffer plate is installed in the buffer groove, and the portion, located in a gap of the buffer plate, in the buffer groove is filled with an energy absorption lining. The novel corrosion-resistant seamless steel tube for the ship solves the problems that the corrosion rate of the seamless steel tube is increased and the service life of the seamless steel tube is influenced due to the fact that more barnacles are easily parasitized on the surface of a tube body of the existing seamless steel tube on the ship during operation of the ship, and improves the cleanliness of the seamless steel tube, thereby prolonging the service life of the seamless steel tube.
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Description

Technical Field

[0001] This utility model relates to the field of seamless steel pipe production technology, specifically a new type of corrosion-resistant seamless steel pipe for ships. Background Technology

[0002] Seamless steel pipe is a type of steel pipe without welded joints. It is usually produced by solid pressure processing or rotary processing. This type of steel pipe has no obvious weld seams, so it has high strength and pressure resistance. It is suitable for various high-pressure, high-temperature or critical engineering and applications. Seamless steel pipe is commonly used in petroleum, chemical, natural gas, heating, water supply and other fields. It is favored for its excellent sealing and corrosion resistance. It is especially needed on ships.

[0003] The seamless steel pipes used in existing ships are prone to the growth of barnacles on their surface during ship operation, which increases the corrosion rate and affects the service life of the seamless steel pipes. To address this, we propose a new type of corrosion-resistant seamless steel pipe for ships. Utility Model Content

[0004] The purpose of this invention is to provide a new type of corrosion-resistant seamless steel pipe for ships, which facilitates the cleaning of barnacles on the outer surface of the pipe. This solves the problem that existing seamless steel pipes on ships are prone to the growth of barnacles on the pipe surface during ship operation, leading to an increased corrosion rate and affecting the service life of the seamless steel pipe.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel corrosion-resistant seamless steel pipe for ships, comprising a pipe body and an outer sleeve, wherein the outer sleeve is fitted onto the outer surface of the pipe body, the outer surface of the outer sleeve is provided with a groove, a cleaning seat is installed on the outer surface of the pipe body at the location of the groove, the outer surface of the cleaning seat is provided with cleaning teeth, a connecting seat A is installed on one side of the outer surface of the pipe body, a movable frame is installed on the outer surface of the outer sleeve near the connecting seat A, a rotating shaft is installed inside the movable frame, and an adjusting screw is installed at one end of the rotating shaft.

[0006] Preferably, the rotating shaft is movably connected inside the connecting seat A, and the rotating shaft is connected to the movable frame by a threaded engagement.

[0007] Preferably, a buffer groove is provided inside the tube near the outer surface, a buffer plate is installed inside the buffer groove, and an energy-absorbing liner is filled inside the buffer groove in the gap between the buffer plate.

[0008] Preferably, a connecting seat B is installed on the outer surface of the tube opposite to the connecting seat A, and both the connecting seat A and the connecting seat B are provided with connecting holes.

[0009] Preferably, a connecting platform is installed on the side of the tube body near the connecting seat A, and a connecting groove is provided on the inner surface of the tube body away from the connecting platform, and the connecting groove fits into the connecting platform.

[0010] Preferably, the inner surface of the outer sleeve is provided with sealing grooves B on both sides, and a sealing strip B is installed inside the sealing grooves B.

[0011] Preferably, the inner surface of the outer sleeve is provided with a sealing groove A located on the outer surface of the slide groove, and a sealing strip A is installed inside the sealing groove A.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model achieves convenient cleaning of barnacles on the outer surface of the tube by setting up a rotating shaft, a movable frame, an outer sleeve, a cleaning seat, and cleaning teeth. An outer sleeve is fitted onto the outer surface of the tube, and a groove is provided on the outer surface of the outer sleeve. A cleaning seat is set at the location of the groove on the outer surface of the tube, and cleaning teeth are provided on the outer surface of the cleaning seat. This solves the problem that seamless steel pipes on ships are prone to barnacles on their surface during ship operation, which leads to an increased corrosion rate and affects the service life of the seamless steel pipes. This invention improves the cleanliness of the seamless steel pipes, thereby increasing their service life.

[0014] 2. This utility model achieves the effect of absorbing and buffering external pressure on the pipe body by setting a buffer groove, a buffer plate and an energy-absorbing liner. A buffer groove is set inside the pipe body near the outer surface, a buffer plate is set inside the buffer groove, and an energy-absorbing liner is filled in the gap between the buffer plate and the buffer groove. This solves the problem that existing seamless steel pipes are easily deformed by external seawater pressure when ships are sailing, which affects the normal transportation of fluids. It reduces the probability of deformation of the inner wall of the seamless steel pipe, thereby ensuring the normal transportation of fluids.

[0015] 3. This utility model achieves the effect of sealing the inner surface of the outer sleeve by setting sealing strip A and sealing strip B. Sealing grooves B are provided on both sides of the inner surface of the outer sleeve, and sealing strip B is set inside the sealing grooves B. Sealing groove A is provided on the inner surface of the outer sleeve located on the outer surface of the sliding groove, and sealing strip A is set inside the sealing groove A. This solves the problem that seawater can easily seep into the gap between the outer sleeve and the tube body when the ship is sailing, causing corrosion of the tube body and the outer sleeve, which affects the subsequent movement of the outer sleeve. It reduces the probability of corrosion of the outer sleeve and the tube body, thereby ensuring the normal movement of the outer sleeve. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 for Figure 1 A magnified structural diagram of A;

[0018] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 4 for Figure 3 The enlarged structural diagram of B is shown below.

[0020] Reference numerals: 1. Pipe body; 2. Connecting seat A; 3. Outer tube; 4. Connecting seat B; 5. Rotating shaft; 6. Moving frame; 7. Adjusting screw head; 8. Cleaning tooth; 9. Slide groove; 10. Cleaning seat; 11. Connecting platform; 12. Buffer groove; 13. Buffer plate; 14. Sealing groove A; 15. Sealing strip A; 16. Energy-absorbing liner; 17. Sealing groove B; 18. Sealing strip B; 19. Connecting groove. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1

[0023] like Figure 1-3 As shown, to achieve the above objectives, this utility model provides the following technical solution: A novel corrosion-resistant seamless steel pipe for ships, comprising a pipe body 1 and an outer sleeve 3. The outer sleeve 3 is fitted onto the outer surface of the pipe body 1. The outer surface of the outer sleeve 3 is provided with a groove 9. A cleaning seat 10 is installed on the outer surface of the pipe body 1 at the position of the groove 9. The outer surface of the cleaning seat 10 is provided with cleaning teeth 8. A connecting seat A2 is installed on one side of the outer surface of the pipe body 1. A movable frame 6 is installed on the outer surface of the outer sleeve 3 near the connecting seat A2. A rotating shaft 5 is installed inside the movable frame 6. An adjusting screw head 7 is installed at one end of the rotating shaft 5. The rotating shaft 5 is movably connected to the inside of the connecting seat A2. The rotating shaft 5 and the movable frame 6 are connected by a threaded connection. A buffer groove 12 is provided inside the pipe body 1 near the outer surface. A buffer plate 13 is installed inside the buffer groove 12. An energy-absorbing liner 16 is filled in the gap between the buffer plate 13 inside the buffer groove 12. The energy-absorbing liner 16 absorbs the impact pressure.

[0024] like Figure 3 and Figure 4 As shown, both sides of the inner surface of the outer sleeve 3 are provided with sealing grooves B17, and sealing strips B18 are installed inside the sealing grooves B17. The sealing strips B18 are used to seal the inner surface of the outer sleeve 3, thereby protecting the pipe body 1. The inner surface of the outer sleeve 3 is provided with a sealing groove A14 located on the outer surface of the slide groove 9. Seawater is blocked and protected by the sealing sleeve A.

[0025] The working principle of a novel corrosion-resistant seamless steel pipe for ships based on Embodiment 1 is as follows: After the present invention is installed, fluid is transported through the set pipe body 1. The energy-absorbing inner liner 16 and the buffer plate 13 are set to absorb the external impact pressure, thereby ensuring the normal transport of fluid inside the pipe body 1. When it is necessary to clean the barnacles on the outer surface of the outer sleeve 3, the adjusting screw head 7 is rotated by the tool. The adjusting screw head 7 drives the rotating shaft 5 to rotate, the rotating shaft 5 drives the moving frame 6 to move, and the moving frame 6 drives the outer sleeve 3 to move. The barnacles can then be cleaned through the cleaning teeth 8 on the outer surface of the cleaning seat 10, thereby ensuring the normal use of the present invention. At this point, the working process of the equipment is completed.

[0026] Example 2

[0027] like Figure 1 and Figure 3 As shown, the present invention proposes a novel corrosion-resistant seamless steel pipe for ships. Compared with Embodiment 1, this embodiment further includes: a connecting seat B4 installed on the outer surface of the pipe body 1 away from the connecting seat A2; both the connecting seat A2 and the connecting seat B4 are provided with connecting holes; a connecting platform 11 is installed on the side of the pipe body 1 near the connecting seat A2; and a connecting groove 19 is provided on the inner surface of the pipe body 1 away from the connecting platform 11, with the connecting groove 19 fitting into the connecting platform 11.

[0028] In this embodiment, when the pipe bodies 1 are connected, the connecting platform 11 of one pipe body 1 is inserted into the connecting groove 19 of another pipe body 1 to connect the pipe bodies 1, and the connecting bolts are installed through the connecting seat A2 and connecting seat B4 to connect the pipe bodies 1.

[0029] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A novel corrosion-resistant seamless steel pipe for ships, comprising a pipe body (1) and an outer casing (3), characterized in that: The outer surface of the tube body (1) is fitted with an outer sleeve (3). The outer surface of the outer sleeve (3) is provided with a groove (9). A cleaning seat (10) is installed on the outer surface of the tube body (1) at the position of the groove (9). The outer surface of the cleaning seat (10) is provided with cleaning teeth (8). A connecting seat A (2) is installed on one side of the outer surface of the tube body (1). A movable frame (6) is installed on the outer surface of the outer sleeve (3) near the connecting seat A (2). A rotating shaft (5) is installed inside the movable frame (6). An adjusting screw (7) is installed at one end of the rotating shaft (5).

2. The novel corrosion-resistant seamless steel pipe for ships according to claim 1, characterized in that: The rotating shaft (5) is movably connected inside the connecting seat A (2), and the rotating shaft (5) is connected to the movable frame (6) by a threaded engagement.

3. The novel corrosion-resistant seamless steel pipe for ships according to claim 1, characterized in that: The tube body (1) has a buffer groove (12) near the outer surface inside. A buffer plate (13) is installed inside the buffer groove (12). An energy-absorbing liner (16) is filled in the gap between the buffer plate (13) and the buffer groove (12).

4. The novel corrosion-resistant seamless steel pipe for ships according to claim 1, characterized in that: A connecting seat B (4) is installed on the outer surface of the tube body (1) away from the connecting seat A (2), and both the connecting seat A (2) and the connecting seat B (4) are provided with connecting holes.

5. A novel corrosion-resistant seamless steel pipe for ships according to claim 1, characterized in that: A connecting platform (11) is installed on the side of the tube body (1) near the connecting seat A (2). A connecting groove (19) is provided on the inner surface of the tube body (1) away from the connecting platform (11). The connecting groove (19) fits into the connecting platform (11).

6. A novel corrosion-resistant seamless steel pipe for ships according to claim 1, characterized in that: The inner surface of the outer sleeve (3) is provided with sealing grooves B (17) on both sides, and a sealing strip B (18) is installed inside the sealing grooves B (17).

7. A novel corrosion-resistant seamless steel pipe for ships according to claim 1, characterized in that: The inner surface of the outer sleeve (3) is provided with a sealing groove A (14) on the outer surface of the slide groove (9), and a sealing strip A (15) is installed inside the sealing groove A (14).