CN109305302B - Anti-leakage containment system of cargo tank - Google Patents
Anti-leakage containment system of cargo tank Download PDFInfo
- Publication number
- CN109305302B CN109305302B CN201811222391.6A CN201811222391A CN109305302B CN 109305302 B CN109305302 B CN 109305302B CN 201811222391 A CN201811222391 A CN 201811222391A CN 109305302 B CN109305302 B CN 109305302B
- Authority
- CN
- China
- Prior art keywords
- cargo tank
- liquid
- main body
- body part
- heat preservation
- Prior art date
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- 239000007788 liquid Substances 0.000 claims abstract description 74
- 238000004321 preservation Methods 0.000 claims abstract description 38
- 238000009413 insulation Methods 0.000 claims description 37
- 238000007789 sealing Methods 0.000 claims description 16
- 239000013013 elastic material Substances 0.000 claims description 12
- 230000002265 prevention Effects 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 4
- 239000011491 glass wool Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
Abstract
In the anti-leakage containment system of the cargo tank, the upper surface of the first main body part of one or more Z-shaped heat preservation blocks at the bottom of the heat preservation layer is provided with the liquid collecting pit, when liquid cargo leaks into a leakage channel from the cargo tank, the leaked liquid cargo can be collected into the liquid collecting pit, the liquid collecting pit is arranged on the upper surface of the first main body part of the Z-shaped heat preservation block and can have a larger area, and leaked liquid flows into the liquid collecting pit and is not easy to flow out along with the bump of a ship body; the leakage liquid in the liquid collecting pit flows into the liquid storage container through the liquid guide pipe. In this way, the leaked liquid cargo does not directly flow onto the hull, causing the local temperature of the hull to be too low and affecting the strength of the hull steel plates.
Description
Technical Field
The invention relates to a leakage-proof containment system of a cargo tank, in particular to a leakage-proof containment system of a ship cargo tank for transporting liquefied gas similar cargoes.
Background
Liquefied gas vessels are used for transporting liquefied gas cargo, the temperature of liquefied gas is very low, if the liquefied gas leaks to the hull during transportation, the temperature of a local area of the hull is reduced to affect the strength of a steel plate of the hull, and the liquefied gas is a very dangerous condition for ships running on the sea. Therefore, the cargo tank needs to be protected to prevent the leaked liquefied gas from directly flowing to the ship body. The cargo tank enclosure system in the prior art is complex in structure, and can not collect and store leaked liquefied gas well, so that the liquefied gas has the risk of leaking onto the ship body.
Disclosure of Invention
In view of the above-described drawbacks of the prior art, an object of the present invention is to provide a leakage prevention containment system of a cargo tank, which can collect and store leakage liquid conveniently.
In order to achieve the above purpose, the invention provides a leakage-proof containment system of a cargo tank, comprising a heat preservation layer wrapped on the outer side of the outer side wall of the cargo tank, wherein the outer side of the heat preservation layer is wrapped with a sealing layer; a gap is formed between the heat preservation layer and the outer side wall of the cargo tank to form a leakage channel; the heat insulation layer is formed by splicing a plurality of heat insulation blocks, the bottom of the heat insulation layer comprises a plurality of Z-shaped heat insulation blocks and a plurality of convex heat insulation blocks which are spliced together, the Z-shaped heat insulation blocks comprise a first main body part, a first wing plate and a second wing plate, the first wing plate and the second wing plate are arranged on two sides of the first main body part, the convex heat insulation blocks comprise a second main body part and flat wing plates arranged on two sides of the second main body part, and the first wing plate is matched with the adjacent second wing plate or flat wing plate in a clamping mode; the upper surface of the first main body part of one or more Z-shaped heat preservation blocks at the bottom of the heat preservation layer is provided with a liquid collecting pit, the bottom surface of the liquid collecting pit is connected with a liquid guide pipe, and the liquid guide pipe sequentially passes through the inner heat preservation layer, the outer heat preservation layer and the sealing layer downwards and is connected to a liquid storage container arranged below the sealing layer.
Preferably, a gap is formed between the first wing plate side surface and the first main body portion side surface or the second main body portion side surface, and the gap is filled with an elastic material.
Preferably, a gap is formed between the second wing plate side surface and the first main body portion side surface or between the flat wing plate side surface and the first main body portion side surface, and the gap is filled with an elastic material.
More preferably, the elastic material is glass wool or polyurethane.
Preferably, a Z-shaped heat preservation block with a liquid collecting pit is arranged near four corners of the bottom of the heat preservation layer.
Preferably, a plurality of supporting gaskets are arranged between the outer side wall of the cargo tank and the inner side wall of the heat preservation layer, studs are connected to the supporting gaskets, the first wing plate and the second wing plate which are matched with each pair of clamps are connected together through one stud, and the first wing plate and the flat wing plate which are matched with each pair of clamps are also connected together through one stud.
Preferably, the sealing layer is made of aluminum foil.
As described above, the anti-leakage containment system of the cargo tank has the following beneficial effects: in the anti-leakage containment system of the cargo tank, the upper surface of the first main body part of one or more Z-shaped heat preservation blocks at the bottom of the heat preservation layer is provided with the liquid collecting pit, when liquid cargo leaks into a leakage channel from the cargo tank, the leaked liquid cargo can be gathered into the liquid collecting pit, the liquid collecting pit is arranged on the upper surface of the first main body part of the Z-shaped heat preservation blocks and can have a larger area, and the leaked liquid flows into the liquid collecting pit and is not easy to flow out along with the bumping of a ship body; the leakage liquid in the liquid collecting pit flows into the liquid storage container through the liquid guide pipe. In this way, the leaked liquid cargo does not directly flow onto the hull, causing the local temperature of the hull to be too low and affecting the strength of the hull steel plates.
Drawings
Fig. 1 is a schematic cross-sectional view of a leakage protection enclosure system of a cargo tank according to the present invention.
Fig. 2 is an enlarged schematic view of the structure at C in fig. 1.
Fig. 3 is an enlarged schematic view of the structure shown at D in fig. 1.
Fig. 4 shows a schematic structure of the "Z" shaped thermal insulation block.
Fig. 5 shows a schematic structure of the heat-insulating block in a shape of a "convex".
Fig. 6 shows a schematic diagram of the cargo tank and the reservoir below it.
Description of element reference numerals
1. Cargo tank
2. Thermal insulation layer
3. Sealing layer
4. Leakage path
5Z-shaped heat insulation block
6. A first main body part
7. First wing plate
8. Second wing plate
9 'Convex' shape thermal insulation block
10. A second main body part
11. Flat wing plate
12. Liquid collecting pit
13. Liquid guiding tube
14. Elastic material
15. Support gasket
16. Stud bolt
17. Strong structural member
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
As shown in fig. 1 to 3, the invention provides a leakage-proof containment system of a cargo tank, which comprises a heat preservation layer 2 wrapped on the outer side of the outer side wall of the cargo tank 1, wherein the outer side of the heat preservation layer 2 is wrapped with a sealing layer 3; a gap is formed between the heat insulation layer 2 and the outer side wall of the cargo tank 1 to form a leakage channel 4; the heat insulation layer 2 is formed by splicing a plurality of heat insulation blocks, the bottom of the heat insulation layer 2 comprises a plurality of Z-shaped heat insulation blocks 5 and convex heat insulation blocks 9 which are spliced together, as shown in fig. 4, the Z-shaped heat insulation blocks 5 comprise a first main body part 6, a first wing plate 7 and a second wing plate 8 which are arranged on two sides of the first main body part 6, as shown in fig. 5, the convex heat insulation blocks 9 comprise a second main body part 10 and flat wing plates 11 which are arranged on two sides of the second main body part 10, as shown in fig. 2 and 3, and the first wing plates 7 are suitably matched with the adjacent second wing plates 8 or flat wing plates 11 in a clamping way; the upper surface of the first main body part 6 of one or more Z-shaped heat preservation blocks 5 at the bottom of the heat preservation layer 2 is provided with a liquid collecting pit 12, the bottom surface of the liquid collecting pit 12 is connected with a liquid guide pipe 13, and the liquid guide pipe 13 sequentially passes through the inner heat preservation layer 2, the outer heat preservation layer 2 and the sealing layer 3 downwards and is connected to a liquid storage container arranged below the sealing layer 3.
In the anti-leakage containment system of the cargo tank, the upper surface of the first main body part 6 of one or more Z-shaped heat preservation blocks 5 at the bottom of the heat preservation layer 2 is provided with the liquid collecting pit 12, when liquid cargo leaks into the leakage channel 4 from the cargo tank 1, the leaked liquid cargo can be gathered into the liquid collecting pit 12, the liquid collecting pit 12 is arranged on the upper surface of the first main body part 6 of the Z-shaped heat preservation block 5 and can have a larger area, and leaked liquid flows into the liquid collecting pit 12 and is not easy to flow out along with the bump of a ship body; the leaked liquid in the liquid collecting pit 12 flows into the liquid storage container through the liquid guide tube 13. In this way, the leaked liquid cargo does not directly flow onto the hull, causing the local temperature of the hull to be too low and affecting the strength of the hull steel plates.
In the anti-leakage containment system of the cargo tank, the heat preservation layer 2 is wrapped on the outer side of the cargo tank 1, a gap is reserved between the heat preservation layer 2 and the cargo tank 1, so that a leakage channel 4 is formed, if the cargo tank in the cargo tank 1 leaks out, the cargo tank can flow into the leakage channel 4, the outer side of the heat preservation layer 2 is further wrapped with the sealing layer 3, moisture or gas cannot permeate through the sealing layer 3, therefore, the material of the heat preservation layer 2 cannot be corroded by moisture or gas in the external environment, and the cargo tank in the leakage channel 4 cannot leak onto a ship body through the heat preservation layer 2 and the sealing layer 3. As a preferred embodiment, the sealing layer 3 is made of aluminum foil, and the aluminum foil can be easily coated on the outer side of the heat insulation layer 2, so that the cost is low and the installation is convenient.
In the anti-leakage containment system of the cargo tank according to the present invention, the thermal insulation layer 2 is deformed due to thermal expansion and contraction caused by temperature change, and in order to reduce the internal stress generated in the thermal insulation layer 2, as a preferred embodiment, as shown in fig. 2 and 3, a gap is formed between the side surface of the first wing plate 7 and the side surface of the first main body portion 6 or the side surface of the second main body portion 10, and the gap is filled with the elastic material 14. Thus, when the Z-shaped heat-insulating block 5 or the convex-shaped heat-insulating block 9 is subjected to expansion and contraction deformation, the elastic material 14 can adapt to the generated deformation. Further, as shown in fig. 3, a gap is formed between the side surface of the second wing plate 8 and the side surface of the first body portion 6, or between the side surface of the flat wing plate 11 and the side surface of the first body portion 6, and the gap is filled with an elastic material 14. The elastic material 14 is preferably made of a material with good elasticity, good heat insulation performance and good watertight and airtight effects, and preferably, the elastic material 14 is glass wool or polyurethane.
In the anti-leakage containment system of the cargo tank, in order to facilitate the connection of the Z-shaped heat-preserving blocks 5 and the convex-shaped heat-preserving blocks 9, as shown in fig. 2 and 3, a plurality of supporting gaskets 15 are arranged between the outer side wall of the cargo tank 1 and the inner side wall of the heat-preserving layer 2, the supporting gaskets 15 are welded at positions corresponding to the strong structural parts 17 of the inner wall of the cargo tank 1, the supporting gaskets 15 are connected with studs 16, the first wing plate 7 and the second wing plate 8 which are matched in each pair of the clamping devices are connected together through one stud 16, and the first wing plate 7 and the flat wing plate 11 which are matched in each pair of the clamping devices are also connected together through one stud 16.
In the anti-leakage containment system of the cargo tank, as the liquid collecting pit 12 is arranged on the upper surface of the bottom of the heat preservation layer 2, if liquid cargo leaks out of the cargo tank 1, the leaked liquid cargo flows to the bottom of the heat preservation layer 2 and is gathered into the liquid collecting pit 12, and the liquid cargo gathered into the liquid collecting pit 12 flows into the liquid storage container from the liquid guide pipe 13 for temporary storage. Generally, the reservoir needs to be able to store any liquid cargo that is expected to leak for a period of 15 days. In order that the leaked liquid cargo does not stay at the bottom of the heat insulation layer 2 for too long, and can flow into the liquid storage container sufficiently, preferably, as shown in fig. 6, a zigzag heat insulation block 5 with liquid collecting pits 12 is arranged near four corners of the bottom of the heat insulation layer 2. In this way, the leaked liquid cargo can more easily flow into any one of the liquid collecting pits 12 and into the liquid storage container.
Based on the technical scheme of the embodiment, the leakage prevention enclosure system of the cargo tank can conveniently collect and store leakage liquid, so that the leakage liquid is prevented from flowing onto a ship body to influence the strength of a ship body steel plate, and the safety of the ship is improved.
In summary, the present invention effectively overcomes the disadvantages of the prior art and has high industrial utility value.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (7)
1. The anti-leakage containment system of the cargo tank is characterized by comprising an insulation layer (2) wrapped on the outer side of the outer side wall of the cargo tank (1), wherein the outer side of the insulation layer (2) is wrapped with a sealing layer (3); a gap is formed between the heat insulation layer (2) and the outer side wall of the liquid cargo tank (1) to form a leakage channel (4);
The heat insulation layer (2) is formed by splicing a plurality of heat insulation blocks, the bottom of the heat insulation layer (2) comprises a plurality of Z-shaped heat insulation blocks (5) and convex-shaped heat insulation blocks (9) which are spliced together, the Z-shaped heat insulation blocks (5) comprise a first main body part (6) and first wing plates (7) and second wing plates (8) which are arranged on two sides of the first main body part (6), the convex-shaped heat insulation blocks (9) comprise a second main body part (10) and flat wing plates (11) which are arranged on two sides of the second main body part (10), and the first wing plates (7) are suitably matched with the adjacent second wing plates (8) or flat wing plates (11) in a clamping mode;
the upper surface of the first main body part (6) of one or more Z-shaped heat preservation blocks (5) at the bottom of the heat preservation (2) is provided with a liquid collecting pit (12), the bottom surface of the liquid collecting pit (12) is connected with a liquid guide pipe (13), and the liquid guide pipe (13) sequentially penetrates through the inner heat preservation (2), the outer heat preservation (2) and the sealing layer (3) downwards and is connected to a liquid storage container arranged below the sealing layer (3).
2. The cargo tank leakage prevention containment system of claim 1, wherein: a gap is formed between the side surface of the first wing plate (7) and the side surface of the first main body part (6) or the side surface of the second main body part (10), and the gap is filled with an elastic material (14).
3. The cargo tank leakage prevention containment system of claim 1, wherein: a gap is formed between the side surface of the second wing plate (8) and the side surface of the first main body part (6) or between the side surface of the Ping Yiban (11) and the side surface of the first main body part (6), and the gap is filled with an elastic material (14).
4. The cargo tank leakage prevention containment system of claim 3 wherein: the elastic material (14) is glass wool or polyurethane.
5. The cargo tank leakage prevention containment system of claim 1, wherein: the vicinity of four corners of the bottom of the heat preservation layer (2) is provided with a Z-shaped heat preservation block (5) with a liquid collecting pit (12).
6. The cargo tank leakage prevention containment system of claim 1, wherein: a plurality of supporting gaskets (15) are arranged between the outer side wall of the cargo tank (1) and the inner side wall of the heat insulation layer (2), studs (16) are connected to the supporting gaskets (15), the first wing plate (7) and the second wing plate (8) which are matched with each pair of cards are connected together through one stud (16), and the first wing plate (7) and the flat wing plate (11) which are matched with each pair of cards are also connected together through one stud (16).
7. The cargo tank leakage prevention containment system of claim 1, wherein: the sealing layer (3) is made of aluminum foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811222391.6A CN109305302B (en) | 2018-10-19 | Anti-leakage containment system of cargo tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811222391.6A CN109305302B (en) | 2018-10-19 | Anti-leakage containment system of cargo tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109305302A CN109305302A (en) | 2019-02-05 |
| CN109305302B true CN109305302B (en) | 2024-06-11 |
Family
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| CN103562061A (en) * | 2011-05-25 | 2014-02-05 | 三星重工业株式会社 | Storage tank for liquefied materials and ship comprising same |
| KR20130045433A (en) * | 2011-10-26 | 2013-05-06 | 삼성중공업 주식회사 | Liquid cargo tank and ship having the same |
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