Ship low-temperature pipe cabin penetrating piece

By designing a ship's low-temperature pipe penetration section including stainless steel pipes, insulation plates, casings and polyurethane pipes, the problem of direct transmission of the low-temperature pipes to the hull bulkhead is solved, and the effect of avoiding bulkhead deformation and frostbite is achieved.

CN223019651UActive Publication Date: 2025-06-24COSCO SHIPPING (QIDONG) OFFSHORE CO LTD +1
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Patent Information

Application Number
CN202422389766.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-06-24
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

In dual fuel ships, the low temperature of the cryogenic pipeline will be directly transmitted to the hull bulkhead, causing deformation of the bulkhead and frostbite on board.

Method used

A ship's low-temperature pipe penetration section is designed to form an isolation layer through a combination of stainless steel pipes, insulation plates, casings and polyurethane pipes to prevent direct contact between the stainless steel pipes and the hull bulkheads, and to isolate the low temperature through a foam layer and polyurethane pipes.

Benefits of technology

It effectively avoids direct contact between the pipeline and the hull structure, and prevents bulkhead deformation and frostbite caused by low temperature.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of ship pipeline cabin penetration, in particular to a ship low-temperature pipe cabin penetration piece which comprises a stainless steel pipe and a ship body cabin wall, a first isolation plate is fixedly installed outside the stainless steel pipe, a second isolation plate is fixedly installed outside the first isolation plate, and a sleeve is fixedly installed on one side of the second isolation plate. The sleeve is fixedly installed in the opening, a foam layer is arranged between the sleeve and the stainless steel pipe, polyurethane pipes are arranged on one side of the second isolation plate and one side of the foam layer, and the stainless steel pipe is sleeved with the polyurethane pipes. The first isolation plate, the second isolation plate and the sleeve form a special cabin penetrating piece, low temperature of the stainless steel pipe is prevented from being directly conducted to the cabin wall of the ship body, meanwhile, the space between the sleeve and the stainless steel pipe is filled with the formed foam layer, the stainless steel pipe is wrapped with the polyurethane pipe, and direct contact between the stainless steel pipe and the outside is isolated through combination of the foam layer and the polyurethane pipe; the problem that the hull bulkhead deforms due to low temperature is solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of ship pipeline penetration through the cabin, in particular to a ship low-temperature pipeline penetration component. Background Art

[0002] In dual-fuel ships, the medium temperatures of liquefied natural gas pipelines and low-temperature steam pipelines are as low as below -162°C. To keep the medium in the pipelines at a low temperature, the pipelines will be wrapped with insulation and stainless steel iron sheets. However, when the pipe body penetrates through the cabin body, using the traditional penetration type, the low temperature will directly conduct to the cabin wall, damaging the galvanized layer on the inner wall of the ship body, and causing frostbite to the shipboard operators who come into contact with the cabin wall.

[0003] In the prior art, a patent with the publication number CN217784438U discloses a ship pipeline penetration component and a ship, including a pipe body. A first flange is fixedly connected to the first end of the pipe body, a second flange is fixedly connected to the second end of the pipe body, a ring protruding outward is fixedly connected to the middle of the outer peripheral side of the pipe body, a web and a pressing ring are sleeved outside the pipe body, the web is located between the ring and the second flange, and the pressing ring is located between the ring and the first flange.

[0004] The above structure welds the outer wall of the pipe body to the ship deck or cabin wall using the flange, avoiding damage to the galvanized layer on the inner wall of the pipe body. However, the pipe body will be in direct contact with the cabin wall, and the liquefied natural gas pipeline and the low-temperature steam pipeline are low-temperature pipelines, and the low temperature will cause deformation of the ship's cabin wall. Summary of the Invention

[0005] In view of this, the purpose of the present utility model is to provide a ship low-temperature pipeline penetration component to solve the problem that the pipe body will be in direct contact with the cabin wall and the low temperature will cause deformation of the ship's cabin wall.

[0006] Based on the above purpose, the present utility model provides a ship low-temperature pipeline penetration component, including a stainless steel pipe and a ship's cabin wall. An opening for the stainless steel pipe to penetrate through is provided inside the ship's cabin wall;

[0007] An isolation plate one is fixedly installed outside the stainless steel pipe, an isolation plate two is fixedly installed outside the isolation plate one, and a sleeve is fixedly installed on one side of the isolation plate two;

[0008] The sleeve is fixedly installed inside the opening, and a foam layer is provided between the sleeve and the stainless steel pipe;

[0009] Polyurethane pipes are provided on one side of the isolation plate two and one side of the foam layer, and the polyurethane pipes are sleeved outside the stainless steel pipe.

[0010] Preferably, the size of the foam layer matches the size of the sleeve.

[0011] Preferably, the first partition board and the second partition board are perpendicular to each other. The thicknesses of both the first partition board and the second partition board are 12 mm, and both the first partition board and the second partition board are made of stainless steel.

[0012] Preferably, the length of the sleeve is 250 mm, and the distance between the second partition board and the ship hull bulkhead is 200 mm.

[0013] Preferably, the inner diameter of the polyurethane pipe matches the outer diameter of the stainless steel pipe, and the polyurethane pipe is made of insulating material.

[0014] Preferably, the radius of the sleeve matches the radius of the opening, and the foam layer is formed into a hollow cylindrical member after molding.

[0015] The beneficial effects of the present utility model: A special through-hull component is formed by the first partition board, the second partition board and the sleeve, so that the stainless steel pipe and the ship hull bulkhead do not directly contact each other, and it also prevents the low temperature of the stainless steel pipe from directly conducting to the ship hull bulkhead. At the same time, the foam layer formed by filling between the sleeve and the stainless steel pipe, and the polyurethane pipe is wrapped outside the stainless steel pipe. The combination of the two isolates the direct contact between the stainless steel pipe and the outside world, solves the problem of deformation of the ship hull bulkhead caused by low temperature, and eliminates the hidden danger of frostbite to the staff caused by the low temperature of the bulkhead. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only those of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a three-dimensional structure schematic diagram of the whole of the present utility model;

[0018] Figure 2 It is a cross-sectional structure schematic diagram of the stainless steel pipe and the ship hull bulkhead of the present utility model.

[0019] The labels in the figure are: 1, stainless steel pipe; 2, first partition board; 3, second partition board; 4, sleeve; 5, polyurethane pipe; 6, foam layer; 7, ship hull bulkhead; 8, opening. Detailed Embodiments

[0020] To make the purpose, technical solutions and advantages of the present utility model clearer, the following further details the present utility model in combination with specific embodiments.

[0021] Such as Figure 1 、 Figure 2As shown in the figure, a low-temperature pipe penetration component for a ship includes a stainless steel pipe 1, and an opening 8 for the stainless steel pipe 1 to penetrate is provided inside the hull bulkhead 7;

[0022] An isolation plate 1 is fixedly installed outside the stainless steel pipe 1, an isolation plate 2 is fixedly installed outside the isolation plate 1, and a sleeve 4 is fixedly installed on one side of the isolation plate 2;

[0023] The sleeve 4 is fixedly installed inside the opening 8, and a foam layer 6 is provided between the sleeve 4 and the stainless steel pipe 1;

[0024] Polyurethane pipes 5 are provided on one side of the isolation plate 2 and one side of the foam layer 6, and the polyurethane pipes 5 are sleeved outside the stainless steel pipe 1.

[0025] In this embodiment, outside the stainless steel pipe 1, the isolation plate 1, the isolation plate 2 and the sleeve 4 form a special penetration component, so that the stainless steel pipe 1 does not directly contact the hull bulkhead 7, and also prevents the low temperature of the stainless steel pipe 1 from directly conducting to the hull bulkhead 7. At the same time, under the combination of the isolation plate 2 and the sleeve 4, the foam layer 6 formed by filling between them and the polyurethane pipes 5 wrapped outside the stainless steel pipe 1 together isolate the direct contact between the stainless steel pipe 1 and the outside world, avoiding the direct contact between the pipeline and the hull structure, solving the problem of deformation of the hull bulkhead 7 caused by low temperature, and eliminating the hidden danger of frostbite to the staff caused by the low temperature of the bulkhead.

[0026] As an embodiment, as Figure 2 shown, the size of the foam layer 6 matches the size of the sleeve 4, and the foam layer 6 is made of polyurethane.

[0027] In this embodiment, the polyurethane foam foamed on-site by the foam layer 6, under the characteristics of polyurethane, both combinations can isolate the direct contact between the stainless steel pipe 1 and the outside world, avoiding the direct contact between the pipeline and the hull structure, and ensuring the watertightness of the hull bulkhead 7.

[0028] As an embodiment, as Figure 2 shown, the isolation plate 1 is perpendicular to the isolation plate 2, the thicknesses of both the isolation plate 1 and the isolation plate 2 are 12 mm, and both the isolation plate 1 and the isolation plate 2 are stainless steel components.

[0029] In this embodiment, the isolation plate 1, the isolation plate 2 and the sleeve 4 are used to form a special penetration component, so that the stainless steel pipe 1 does not directly contact the hull bulkhead 7, and also prevents the low temperature of the stainless steel pipe 1 from directly conducting to the hull bulkhead 7.

[0030] As an embodiment, as Figure 1 、 Figure 2As shown, the length of the casing 4 is 250 mm, and the distance between the second insulating plate 3 and the hull bulkhead 7 is 200 mm.

[0031] In this embodiment, the casing 4 passes through the opening 8. There is a 200-mm distance between one end of the casing 4 and the hull bulkhead 7, and the other end of the casing 4 extends 50 mm out of the opening 8, making the casing 4 tangent to the hull bulkhead 7 vertically, thus preventing the stainless-steel pipe 1 from directly contacting the hull bulkhead 7.

[0032] As an embodiment, as Figure 1 、 Figure 2 shown, the inner diameter of the polyurethane pipe 5 matches the outer diameter of the stainless-steel pipe 1, and the polyurethane pipe 5 is an insulating material component.

[0033] In this embodiment, the polyurethane foam formed by on-site foaming of the foam layer 6, under the characteristics of polyurethane, can isolate the stainless-steel pipe 1 from direct contact with the outside world when the two are combined, avoiding direct contact between the pipeline and the hull structure.

[0034] As an embodiment, as Figure 2 shown, the radius of the casing 4 matches the radius of the opening 8, and the foam layer 6 is a hollow cylindrical component after molding.

[0035] In the present utility model, between the casing 4 and the stainless-steel pipe 1, the hollow cylindrical component formed by on-site foaming of the foam layer 6 wraps around the outside of the stainless-steel pipe 1, thus fitting more closely to the stainless-steel pipe 1 and preventing the stainless-steel pipe 1 from directly contacting the hull bulkhead 7.

[0036] Working principle: During use, outside the stainless-steel pipe 1, the first insulating plate 2, the second insulating plate 3, and the casing 4 form a special through-hull component. The through-hull component is inside the opening 8, preventing the stainless-steel pipe 1 from directly contacting the hull bulkhead 7 and also preventing the low temperature of the stainless-steel pipe 1 from directly conducting to the hull bulkhead 7. At the same time, under the combination of the second insulating plate 3 and the casing 4, a polyurethane foam layer 6 is filled between them and the stainless-steel pipe 1, and the polyurethane pipe 5 wraps around the outside of the stainless-steel pipe 1;

[0037] The polyurethane foam formed by on-site foaming of the foam layer 6, under the characteristics of polyurethane, can isolate the stainless-steel pipe 1 from direct contact with the outside world when the two are combined, avoiding direct contact between the pipeline and the hull structure, ensuring the watertightness of the hull bulkhead 7, solving the problem of deformation of the hull bulkhead 7 caused by low temperature, and eliminating the hidden danger of frostbite to the staff caused by the low temperature of the bulkhead.

[0038] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, and for the sake of brevity, they are not provided in detail.

[0039] The present invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A ship cryogenic pipe penetration component, comprising a stainless steel pipe (1) and a ship hull bulkhead (7), wherein an opening (8) for the stainless steel pipe (1) to penetrate is provided inside the ship hull bulkhead (7), characterized in that; An isolation plate 1 (2) is fixedly mounted on the outside of the stainless steel pipe (1), an isolation plate 2 (3) is fixedly mounted on the outside of the isolation plate 1 (2), and a sleeve (4) is fixedly mounted on one side of the isolation plate 2 (3); the sleeve (4) is fixedly mounted inside the opening (8), and a foam layer (6) is provided between the sleeve (4) and the stainless steel pipe (1); a polyurethane pipe (5) is provided on one side of the isolation plate 2 (3) and one side of the foam layer (6), and the polyurethane pipe (5) is sleeved on the outside of the stainless steel pipe (1).

2. A ship cryogenic pipe penetration member according to claim 1, characterized in that: The size of the foam layer (6) matches the size of the sleeve (4).

3. A ship cryogenic pipe penetration member according to claim 1, characterized in that: The isolation plate 1 (2) and the isolation plate 2 (3) are perpendicular to each other, the thickness of the isolation plate 1 (2) and the isolation plate 2 (3) are both 12 mm, and the isolation plate 1 (2) and the isolation plate 2 (3) are both stainless steel components.

4. A ship cryogenic pipe penetration member according to claim 3, characterized in that: The length of the sleeve (4) is 250 mm, and the distance between the second isolation plate (3) and the hull bulkhead (7) is 200 mm.

5. A ship cryogenic pipe penetration member according to claim 1, characterized in that: The inner diameter of the polyurethane tube (5) matches the outer diameter of the stainless steel tube (1), and the polyurethane tube (5) is an insulating material component.

6. A ship cryogenic pipe penetration member according to claim 1, characterized in that: The radius of the sleeve (4) matches the radius of the opening (8), and the foam layer (6) is a hollow cylindrical component after being formed.

Citation Information

Patent Citations

  • Ship pipeline cabin penetrating piece and ship

    CN217784438U