Cabin penetrating piece with inner plastic-coated pipe

Abstract

The utility model provides an internal plastic-coated pipe cabin penetrating piece which comprises an internal plastic-coated steel pipe, connecting flanges, reinforcing rings and webs, the connecting flanges are arranged at the two ends of the internal plastic-coated steel pipe respectively, the reinforcing rings are arranged outside the internal plastic-coated steel pipe in a sleeving mode, a gap is formed between the reinforcing rings and the internal plastic-coated steel pipe, and the webs are arranged on the two sides of the exterior of the reinforcing rings respectively. The ends, away from the reinforcing rings, of the webs are welded to a hull structure. According to the utility model, the reinforcing ring with the gap is arranged outside the inner plastic-coated steel pipe, so that the welding heat is transferred in the air when the web plate is welded with the ship body structure, and the damage to the plastic-coated layer in the inner plastic-coated steel pipe when the web plate is welded with the ship body structure is avoided.

Description

Technical Field

[0001] This utility model relates to the field of shipbuilding technology, and in particular to a plastic-coated pipe through-hull component. Background Technology

[0002] Internally coated steel pipe penetration fittings are connecting components used to pass internally coated steel pipes through the bulkhead. They serve to connect pipelines, maintain seals, and prevent corrosion. If ordinary pipe penetration fittings are used, the plastic coating on the inner wall of the internally coated pipe will be damaged during the welding and installation process. Therefore, there is an urgent need for an internally coated steel pipe penetration fitting that will not damage the plastic coating. Utility Model Content

[0003] To address the aforementioned problems in the prior art, this utility model provides an internally coated plastic pipe penetration component, which avoids damage to the plastic coating layer inside the internally coated plastic steel pipe.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] In a first aspect, this utility model provides an internally coated plastic pipe through-chamber fitting, including an internally coated plastic steel pipe, a connecting flange, a reinforcing ring, and a web plate. The connecting flange is provided at both ends of the internally coated plastic steel pipe. The reinforcing ring is sleeved on the outside of the internally coated plastic steel pipe with a gap between them. The web plate is provided on both sides of the outside of the reinforcing ring.

[0006] The end of the web plate away from the reinforcing ring is used for welding to the hull structure.

[0007] The beneficial effects of this utility model are as follows: by setting a reinforcing ring with gaps around the inner plastic-coated steel pipe, the welding heat during the welding of the web plate to the hull structure is transferred in the air, thus avoiding damage to the plastic coating layer inside the inner plastic-coated steel pipe during the welding of the web plate to the hull structure.

[0008] Optionally, a marine fireproof blanket is filled between the reinforcing ring and the inner plastic-coated steel pipe.

[0009] Optionally, the reinforcing ring and the annular openings on both sides of the inner-coated plastic steel pipe are respectively sealed with expanding fireproof sealant.

[0010] Optionally, the internally coated steel pipe is a seamless steel pipe with an internal plastic coating layer.

[0011] Optionally, the web plate and the reinforcing ring are fixed by welding.

[0012] Optionally, the web includes an integral suspended portion and a welded portion, wherein the length of the suspended portion is greater than or equal to 35 mm and the length of the welded portion is greater than or equal to 50 mm. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of an internally coated plastic tube through-cabin component according to an embodiment of the present utility model;

[0014] Explanation of reference numerals in the attached figures:

[0015] 1. Internally coated plastic steel pipe; 2. Connecting flange; 3. Reinforcing ring; 4. Web plate; 5. Fire blanket; 6. Expanding fireproof sealant;

[0016] 100. Hull structure. Detailed Implementation

[0017] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0018] Example 1

[0019] Please refer to Figure 1 This embodiment provides an internally coated plastic pipe through-cabin component, including an internally coated plastic steel pipe 1, a connecting flange 2, a reinforcing ring 3, and a web plate 4. The connecting flange 2 is provided at both ends of the internally coated plastic steel pipe 1. The reinforcing ring 3 is sleeved on the outside of the internally coated plastic steel pipe 1 with a gap between them. The web plate 4 is provided on both sides of the outside of the reinforcing ring 3.

[0020] Among them, the connecting flanges 2 at both ends are used to connect the pipelines before and after the cabin, and the end of the web plate 4 away from the reinforcing ring 3 is used to weld to the hull structure 100.

[0021] Among them, the internally coated steel pipe 1 is a seamless steel pipe with an internal plastic coating layer. In this way, the pipe material of the main body is the same as that of the pipe material of the hull, giving it sufficient strength and stability. At the same time, the plastic coating layer inside the seamless steel pipe can protect the main pipe, prevent corrosion, and extend the service life of the pipe.

[0022] The web plate 4 and the reinforcing ring 3 are fixed by welding. Specifically, the web plate 4 includes an integral suspended part and a welded part, such as... Figure 1 As shown, the suspended portion is the part of the web plate 4 that is not welded to the hull structure 100, while the welded portion is the part of the web plate 4 that is welded to the hull structure 100. In this embodiment, the length of the suspended portion is greater than or equal to 35 mm, and the length of the welded portion is greater than or equal to 50 mm, to ensure welding quality.

[0023] The manufacturing process of an internally coated plastic pipe through-hull component in this embodiment is as follows: First, the web plate 4 and the reinforcing ring 3 are welded together. Then, the internally coated plastic steel pipe 1 is passed through the reinforcing ring 3. Finally, connecting flanges 2 are welded to both ends of the internally coated plastic steel pipe 1 to obtain the internally coated plastic pipe through-hull component. When this internally coated plastic pipe through-hull component needs to be installed on the hull, only the welded part of the web plate 4 needs to be welded to the hull structure 100.

[0024] This embodiment is particularly suitable for situations where the wall thickness of the internally coated steel pipe 1 is less than 7 mm or where the welding skills of the construction workers are inadequate. In existing technologies, heat insulation is typically achieved using a protective sleeve. However, in the aforementioned scenarios, the plastic coating inside the seamless steel pipe may melt and be damaged during welding of the web plate 4 to the hull structure 100. This embodiment employs a hollow design with the reinforcing ring 3, allowing the welding heat from the welding of the web plate 4 to the hull structure 100 to be transferred through the air, thus preventing damage to the plastic coating inside the internally coated steel pipe 1 during welding.

[0025] Example 2

[0026] Please refer to Figure 1 This embodiment provides a plastic-coated pipe penetration component. Based on the above embodiment one, if it needs to be installed on a bulkhead with a fire resistance rating of A-0 or higher on the ship structure, and the length of the plastic-coated steel pipe 1 needs to be greater than or equal to 900 mm, this embodiment fills the space between the reinforcing ring 3 and the plastic-coated steel pipe 1 with a marine fireproof blanket 5 and seals the annular openings on both sides with expanding fireproof sealant 6.

[0027] In practical applications, after the welded portion of the web plate 4 is welded to the hull structure 100, the gap between the reinforcing ring 3 and the inner plastic-coated steel pipe 1 is filled with a fireproof blanket 5 and an expanding fireproof sealant 6. The watertightness and airtightness tests conducted between the reinforcing ring 3 and the inner plastic-coated steel pipe 1 are as follows:

[0028] (1) Water tightness: No leakage was observed under 0.25MPa water pressure for 60 minutes.

[0029] (2) Air tightness: 0.10M air pressure, no air leakage at the scene for 30 minutes.

[0030] Therefore, in this embodiment, the gap between the reinforcing ring 3 and the inner plastic-coated steel pipe 1 is sealed by a combination of fireproof blanket 5 and expanding fireproof sealant 6, so as to avoid direct connection between the two sides of the bulkhead.

[0031] In the description of this utility model, it should be understood that 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 indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0033] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0035] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A plastic-coated tube through-cabin fitting, characterized in that, The device includes an internally coated plastic steel pipe, connecting flanges, reinforcing rings, and a web. One connecting flange is provided at each end of the internally coated plastic steel pipe. The reinforcing ring is fitted over the internally coated plastic steel pipe with a gap between them. One web is provided on each of the outer sides of the reinforcing ring. The end of the web plate away from the reinforcing ring is used for welding to the hull structure.

2. The internally coated plastic tube through-chamber fitting according to claim 1, characterized in that, A marine fireproof blanket is filled between the reinforcing ring and the inner plastic-coated steel pipe.

3. The internally coated plastic tube through-chamber fitting according to claim 2, characterized in that, The reinforcing ring and the two annular openings on both sides of the inner-coated plastic steel pipe are respectively sealed with expanding fireproof sealant.

4. A plastic-coated tube insertion fitting according to any one of claims 1 to 3, characterized in that, The internally coated steel pipe is a seamless steel pipe with an internal plastic coating layer.

5. A plastic-coated tube insertion fitting according to any one of claims 1 to 3, characterized in that, The web plate and the reinforcing ring are fixed by welding.

6. A plastic-coated tube insertion fitting according to any one of claims 1 to 3, characterized in that, The web plate includes an integral suspended portion and a welded portion, wherein the length of the suspended portion is greater than or equal to 35 mm and the length of the welded portion is greater than or equal to 50 mm.

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