Liquid tank heat preservation and insulation layer structure and C-shaped liquid tank

Abstract

This utility model relates to a liquid tank insulation layer structure and a C-type liquid tank, comprising: a tank body, a support unit, and a spraying and casting unit. The support unit includes multiple support blocks equidistantly arranged on the surface of the tank body. A support plate is provided between any two adjacent support blocks, and the support plate is connected to the side of the support block away from the tank body. A filling cavity is formed between the tank body and the support plate and support blocks. The spraying and casting unit includes a base coat, a support layer, and a filler layer. The base coat is placed on the surface of the tank body, the support layer is placed on the surface of the base coat, and the filler layer is placed between the support plate and the support layer. This utility model divides the surface of the tank body into multiple cavities by installing support units on the surface of the tank body, and lays the insulation layer on the surface of the liquid tank by casting. This enables normal spraying of the insulation layer in the confined space inside the ship's cabin, ensuring the spraying quality and thickness of the insulation layer.

Description

Technical Field

[0001] This utility model relates to the field of shipbuilding tooling technology, and in particular to a liquid tank insulation layer structure and a C-type liquid tank. Background Technology

[0002] Type C tanks are pressure vessels used for storing and transporting liquid cargoes such as liquefied natural gas (LNG), liquefied petroleum gas (LPG), and liquid carbon dioxide. They are a type of freestanding liquid cargo tank and are named for their cross-sectional shape, which resembles the letter "C." They feature unique design and performance characteristics and are widely used in shipping, industrial storage, and other fields.

[0003] Type C tanks typically store cryogenic media (such as liquid ammonia and LNG). To prevent excessive external heat from entering the tank and reduce the evaporation of the media, Type C tanks are coated with an insulating layer. In existing technology, the coating of this insulating layer is usually applied in the field where space is sufficient, allowing the tank body to be directly coated according to the established process. However, for Type C tanks located inside ship cabins, some areas have limited space, making it difficult to meet the required spraying distance. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the difficulty in meeting the spraying requirements in some areas inside the ship's cabin of the existing C-type tank.

[0005] To solve the above technical problems, this utility model provides a liquid tank insulation layer structure, comprising:

[0006] Tank body;

[0007] A support unit includes multiple support blocks, which are equidistantly arranged on the surface of the tank. A support plate is provided between any two adjacent support blocks, and the support plate is connected to the side of the support block away from the tank. A filling cavity is formed between the tank and the support plate and support blocks.

[0008] The spraying and casting unit includes a base coat, a support layer, and a filler layer. The base coat is disposed on the surface of the tank, the support layer is disposed on the surface of the base coat, and the filler layer is disposed between the support plate and the support layer.

[0009] In one embodiment of the present invention, a glass mesh is provided between the support layer and the filling layer.

[0010] In one embodiment of this utility model, a protective layer is sprayed on the side of the support plate away from the filling layer.

[0011] In one embodiment of this utility model, a sealing layer is filled between any two adjacent support plates.

[0012] In one embodiment of this utility model, both the protective layer and the sealing layer are made of polyurea.

[0013] In one embodiment of this utility model, a first fixing adhesive is provided between the support block and the tank body.

[0014] In one embodiment of this utility model, a second fixing adhesive is provided between the support block and the support plate.

[0015] In one embodiment of this utility model, the materials of the first fixing adhesive, the second fixing adhesive, the underlayer, the support layer, and the filler layer are all polyurethane.

[0016] A type C liquid tank, including the aforementioned liquid tank insulation layer structure.

[0017] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0018] This utility model discloses a liquid tank insulation layer structure and a C-type liquid tank. By installing support units on the surface of the tank, the surface is divided into multiple cavities, and the insulation layer is laid on the surface of the liquid tank using a casting method. This allows for normal spraying of the insulation layer within the confined space of a ship's cabin, without the need to control the spraying distance, thus meeting the requirements for laying the insulation layer in confined spaces and ensuring the quality of the insulation layer spraying. Attached Figure Description

[0019] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a construction flowchart of this utility model;

[0022] Explanation of reference numerals in the accompanying drawings: 1. Tank body; 2. Support unit; 3. Spraying and casting unit; 4. First fixing adhesive; 5. Second fixing adhesive; 6. Protective layer; 7. Sealing layer; 21. Support block; 22. Support plate; 31. Undercoat; 32. Support layer; 33. Glass mesh; 34. Filler layer. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0024] Reference Figures 1-2 As shown, this utility model discloses a liquid tank insulation layer structure to solve the above-mentioned technical problems, comprising:

[0025] Tank 1;

[0026] Support unit 2 includes multiple support blocks 21, which are equidistantly arranged on the surface of tank 1. A support plate 22 is provided between any two adjacent support blocks 21. The support plate 22 is connected to the side of the support block 21 away from the tank 1. A filling cavity is formed between the tank 1 and the support plate 22 and support blocks 21.

[0027] The spraying and casting unit 3 includes a base layer 31, a support layer 32, and a filler layer 34. The base layer 31 is disposed on the surface of the tank body 1, the support layer 32 is disposed on the surface of the base layer 31, and the filler layer 34 is disposed between the support plate 22 and the support layer 32.

[0028] In this utility model, the thermal insulation layer structure employs a support unit 2 installed on the surface of the tank body 1. The support unit 2 divides the surface of the tank body 1 into multiple sub-units, and then fills the sub-units with spray-casting units. Specifically, the support unit 2 is constructed using support blocks 21 and support plates 22. In actual operation, the support blocks 21 are first attached to the surface of the tank body 1, and then the support plates 22 are bonded to the support blocks 21. Any two adjacent support blocks 21 are sealed together by the support plates 22, forming multiple filling cavities on the surface of the tank body 1.

[0029] The spray-coating casting unit 3 comprises a multi-layer structure, wherein the base layer 31 directly contacts the tank body 1 and is relatively thin. After the base layer 31 cures, a support layer 32 is sprayed onto its surface. After the support layer 32 cures, a filling layer 34 is cast between the support layer 32 and the support plate 22. The support unit 2 serves as part of the thermal insulation layer. This invention eliminates the need to control the spraying distance, thus satisfying the requirements for laying thermal insulation layers in confined spaces.

[0030] This invention divides the surface of tank 1 into multiple cavities by installing a support unit 2 on the surface of the tank body 1, and then lays the thermal insulation layer on the surface of the liquid tank by casting. This enables normal spraying of the thermal insulation layer in the confined space inside the ship's cabin, ensuring the spraying quality and thickness of the thermal insulation layer.

[0031] Furthermore, a glass mesh 33 is provided between the support layer 32 and the filling layer 34.

[0032] Specifically, due to the large thickness of the entire thermal insulation layer, this invention employs a multi-layer spraying method to create a multi-layer structure. This ensures the performance of the sprayed material and improves the adhesion effect. As a preferred embodiment of this invention, a glass mesh 33 is added inside the thermal insulation layer to enhance the adhesion of the sprayed material.

[0033] Furthermore, a protective layer is sprayed on the side of the support plate 22 away from the filling layer 34.

[0034] Specifically, after the filling layer 34 is poured, a protective layer is applied to the surface of the support plate 22. The protective layer can improve the wear resistance, waterproofing and corrosion resistance of the entire tank 1, further enhance the heat preservation performance of the liquid tank, and extend the service life of the tank 1.

[0035] Furthermore, a sealing layer 7 is filled between any two adjacent support plates 22.

[0036] Specifically, after each pair of adjacent support plates 22 are spliced ​​and fixed, they need to be filled with a sealing layer 7. This serves two purposes: firstly, to beautify the connection gaps, and secondly, to further improve the insulation and protection of the tank body 1 by filling the connection gaps with the sealing layer 7.

[0037] Furthermore, as a preferred embodiment of this utility model, both the protective layer and the sealing layer 7 are made of polyurea. Polyurea material has high hardness and good wear resistance and impact resistance; secondly, the polyurea coating is dense and seamless, which can prevent water, salt spray, acid and alkali and other corrosive media from contacting the substrate, thereby improving the corrosion resistance of the tank 1; in addition, the liquid spraying cures instantly, forming a continuous and seamless waterproof film with excellent sealing performance, preventing rainwater and moisture from penetrating into the insulation layer or the interior of the tank 1.

[0038] Furthermore, a first fixing adhesive 4 is provided between the support block 21 and the tank body 1. A second fixing adhesive 5 is provided between the support block 21 and the support plate 22.

[0039] Specifically, when bonding the support block 21 to the tank body 1, the first fixing adhesive 4 is applied to the surface of the tank body 1, and then the support block 21 is bonded. It should be noted that during the bonding process, the surface of the tank body 1 must be free of oil, water, dust, etc. Similarly, the support plate 22 and the support block 21 are bonded together using the second fixing adhesive 5.

[0040] As a preferred embodiment of this utility model, the first fixing adhesive 4, the second fixing adhesive 5, the underlayer 31, the support layer 32, and the filler layer 34 are all made of polyurethane. Polyurethane is in foam form and can be sprayed and poured. When used as an adhesive, it is directly sprayed onto the surface of the tank 1, and the wet foam will actively adhere to the tank 1 without the need for additional adhesives. This adhesion ensures a seamless connection between the foam and the substrate, preventing heat loss or moisture penetration and improving insulation performance. It can also adhere to complex-shaped substrates such as curved surfaces and corners, making it particularly suitable for arc-shaped structures like C-type tanks. Similarly, the support block 21 and the support plate 22 are also made of polyurethane, cut from solid polyurethane (foam block). Polyurethane also exhibits excellent low thermal conductivity, strong thermal stability, and high-efficiency thermal insulation; it also has good electrical insulation and sealing properties; making it a preferred material for thermal insulation layers.

[0041] A type C liquid tank includes the liquid tank insulation layer structure described in the above embodiments.

[0042] In summary, this utility model introduces a liquid tank insulation layer structure and a C-type liquid tank, with reference to... Figure 2 As shown, the specific operating steps are as follows: First, clean the surface of the tank 1 in the confined area to ensure that the surface of the tank 1 is free of oil, water, and dust; use spray foam to attach foam support blocks 21 in special locations (confined spaces). Protect the surface of the prefabricated support blocks 21 with a protective film. Begin spraying the primer 31, spraying the entire surface of the tank 1 (including the normal construction area) with primer 31. After the primer 31 has cured, spray the support layer 32, ensuring that the total thickness of the support layer 32 and primer 31 is 50mm as required. Then, lay the glass mesh 33, similarly laying the glass mesh 33 in all areas of the entire tank 1. After the glass mesh 33 is laid, attach support plates 22 to the special locations (confined spaces), inject foam (filler layer 34) between the support plates 22 and the glass mesh 33, and spray foam in the normal areas to the set thickness (the thickness of the normal sprayed area is flush with the surface of the support plate 22). Finally, a protective layer 6 is sprayed onto the entire surface of the tank 1, and a sealing layer 7 is filled into the gaps between the support plates 22.

[0043] This invention divides the surface of tank 1 into multiple cavities by installing a support unit 2 on the surface of the tank 1, and then applies a thermal insulation layer to the surface of the liquid tank using a casting method. This allows for normal spraying of the thermal insulation layer within the confined space of a ship's cabin, ensuring the quality of the thermal insulation layer application.

[0044] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A liquid tank thermal insulation layer structure, characterized by, include: Tank body; A support unit includes multiple support blocks, which are equidistantly arranged on the surface of the tank. A support plate is provided between any two adjacent support blocks, and the support plate is connected to the side of the support block away from the tank. A filling cavity is formed between the tank and the support plate and support blocks. The spraying and casting unit includes a base coat, a support layer, and a filler layer. The base coat is disposed on the surface of the tank, the support layer is disposed on the surface of the base coat, and the filler layer is disposed between the support plate and the support layer.

2. The liquid tank insulation structure according to claim 1, characterized by: A glass mesh is disposed between the support layer and the filling layer.

3. The liquid tank insulation layer structure according to claim 1, characterized in that: The side of the support plate away from the filler layer is coated with a protective layer.

4. The liquid tank insulation layer structure according to claim 3, characterized in that: A sealing layer is filled between any two adjacent support plates.

5. The liquid tank insulation layer structure according to claim 4, characterized in that: Both the protective layer and the sealing layer are made of polyurea.

6. The liquid tank insulation layer structure according to claim 1, characterized in that: A first fixing adhesive is provided between the support block and the tank body.

7. The liquid tank insulation layer structure according to claim 6, characterized in that: A second fixing adhesive is provided between the support block and the support plate.

8. The liquid tank insulation layer structure according to claim 7, characterized in that: The materials of the first fixing adhesive, the second fixing adhesive, the underlayer, the support layer, and the filler layer are all polyurethane.

9. A type C liquid tank, characterized in that, Includes the liquid tank insulation layer structure as described in any one of claims 1-8.

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