Thermal protection belt for mounting liquid cargo containment system in LNG (Liquefied Natural Gas) ship

Abstract

The utility model relates to a thermal protection belt for installing a liquid cargo containment system in an LNG (Liquefied Natural Gas) ship, which comprises an aluminum foil layer and at least one glass fiber cloth layer, and the aluminum foil layer and the glass fiber cloth layer are connected in a laminated manner; the aluminum foil layer comprises aluminum foil pieces and aluminum foil connecting pieces, the aluminum foil pieces are rectangular, and the aluminum foil pieces are sequentially connected end to end through the aluminum foil connecting pieces; the glass fiber cloth layer comprises glass fiber cloth pieces and glass fiber cloth connecting pieces, the glass fiber cloth pieces are rectangular, and the multiple glass fiber cloth pieces are sequentially connected end to end through the glass fiber cloth connecting pieces; the glass fiber cloth connecting piece is located under the aluminum foil connecting piece. The device has the advantages that in the installation process of the liquid cargo containment system in the LNG ship, the thermal protection belt is cushioned on the surface of the insulating plate during welding operation, and the thermal insulation and protection effects are achieved; and therefore, the surface of the insulating plate of the liquid cargo containment system in the LNG ship is prevented from being damaged by welding slag and flames in the welding process.

Description

Technical Field

[0001] The utility model relates to the technical field of a liquid cargo containment system in an LNG ship, in particular to a thermal protection belt used for installing a liquid cargo containment system in an LNG ship. Background Art

[0002] LNG carriers are internationally recognized products with high technology, high difficulty and high added value. LNG carriers are special ships used to transport liquefied gas at low temperatures of -162°C.

[0003] The containment system of the liquid cargo tank of an LNG carrier is the core technology of the LNG carrier. The main function of the liquid cargo containment system is to store LNG cargo with a liquid temperature of -162°C.

[0004] The liquid cargo containment system is the isolation barrier and thermal insulation system of the liquid cargo tank, in which the liquid cargo tank is composed of two layers of insulation, primary and secondary, and two corresponding protective films. The insulation layer is composed of multiple insulation boxes, and the protective film is an invar material called "unchanged steel". The primary and secondary insulation layers play an effective role in heat insulation to maintain the temperature of the cargo in the tank during transportation. Ammonia is filled in during normal loading to ensure safety. In addition, there is a liquid dome and a gas dome, which are used for loading and unloading LNG cargo and recycling of volatile gases respectively.

[0005] The liquid cargo containment system has two main functions:

[0006] 1. Completely dense metal film ensures no leakage of LNG;

[0007] 2. Good thermal insulation capability to prevent the hull from being cooled and losing strength and toughness;

[0008] However, the current LNG shipboard liquid cargo containment system requires welding during installation; however, welding slag and flames during the welding operation may damage the surface of the insulation board of the LNG shipboard liquid cargo containment system.

[0009] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Utility Model Content

[0010] The utility model aims to provide a heat protection belt for installing a liquid cargo containment system in an LNG ship, which prevents welding slag and flames from damaging the surface of an insulation board of the liquid cargo containment system in the LNG ship during welding.

[0011] The utility model provides a thermal protection belt for the installation of a liquid cargo containment system in an LNG ship, comprising an aluminum foil layer and at least one glass fiber cloth layer, wherein the aluminum foil layer and the glass fiber cloth layer are stacked and connected; the aluminum foil layer comprises an aluminum foil sheet and an aluminum foil connecting sheet, wherein the aluminum foil sheet is rectangular, and a plurality of the aluminum foil sheets are connected end to end in sequence through the aluminum foil connecting sheet; the glass fiber cloth layer comprises a glass fiber cloth sheet and a glass fiber cloth connecting sheet, wherein the glass fiber cloth sheet is rectangular, and a plurality of the glass fiber cloth sheets are connected end to end in sequence through the glass fiber cloth connecting sheet; and the glass fiber cloth connecting sheet is located directly below the aluminum foil connecting sheet.

[0012] By adopting the above technical solution, during the installation of the liquid cargo containment system in the LNG ship, the heat protection tape is placed on the surface of the insulation board during the welding operation to provide heat insulation protection, thereby preventing welding slag and flames from damaging the surface of the insulation board of the liquid cargo containment system in the LNG ship during the welding process.

[0013] Furthermore, the glass fiber cloth connecting sheet and the aluminum foil connecting sheet are provided with dense through holes.

[0014] By adopting the above technical solution, the dense through holes are designed on the glass fiber cloth connecting sheet and the aluminum foil connecting sheet, so that the structural strength of the glass fiber cloth connecting sheet and the aluminum foil connecting sheet is greatly weakened, and the aluminum foil sheets and the glass fiber cloth sheets on the aluminum foil layer and the glass fiber cloth layer can be removed with a little force; it is convenient to remove the aluminum foil sheets and glass fiber cloth sheets of corresponding sizes according to needs.

[0015] Furthermore, the aluminum foil sheet and the glass fiber cloth sheet are disposable.

[0016] Furthermore, the heat protection belt used for installing the liquid cargo containment system in the LNG ship comprises an aluminum foil layer and five glass fiber cloth layers, and the aluminum foil layer and the five glass fiber cloth layers are sequentially stacked and connected.

[0017] Furthermore, the width of the aluminum foil layer is smaller than the width of the glass fiber cloth layer.

[0018] Furthermore, the thermal protection belt used for installation of the liquid cargo containment system in an LNG ship also includes a drum, and the aluminum foil layer and the glass fiber cloth layer are wrapped around the drum.

[0019] The utility model provides a heat protection belt for installing a liquid cargo containment system in an LNG ship. During the installation of the liquid cargo containment system in the LNG ship, the heat protection belt is placed on the surface of an insulating plate during welding to play a heat insulation protection role, thereby preventing welding slag and flames from damaging the surface of the insulating plate of the liquid cargo containment system in the LNG ship during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1A schematic structural diagram of a thermal protection belt for installation in a liquid cargo containment system in an LNG ship provided in an embodiment of the utility model.

[0021] Figure 2 for Figure 1 Schematic diagram of the structure of the aluminum foil layer and glass fiber cloth layer of the heat protection tape used for the installation of the liquid cargo containment system in the LNG ship.

[0022] Figure 3 for Figure 1 Schematic diagram of the structure of the aluminum foil layer of the heat protection tape installed in the liquid cargo containment system of the LNG ship.

[0023] Figure 4 for Figure 1 Schematic diagram of the structure of the glass fiber cloth layer of the heat protection tape used for installation in the liquid cargo containment system on LNG ships.

[0024] Figure 5 for Figure 1 Schematic diagram of the structure of the reel of the thermal protection tape used for installation in the liquid cargo containment system on LNG ships.

[0025] The reference numerals and components involved in the drawings are as follows:

[0026] 1. Aluminum foil layer

[0027] 11. Aluminum foil

[0028] 12. Aluminum foil connector

[0029] 2. Glass fiber cloth layer

[0030] 21. Fiberglass cloth

[0031] 22. Glass fiber cloth connecting piece

[0032] 3. Through hole

[0033] 4. Roll DETAILED DESCRIPTION

[0034] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] The terms "first", "second", "third", "fourth" and the like in the specification and claims of the present utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0036] Example 1

[0037] Figure 1A schematic diagram of the structure of a heat protection belt for installation in a liquid cargo containment system in an LNG ship provided by an embodiment of the utility model. Figure 2 for Figure 1 Schematic diagram of the structure of the aluminum foil layer and glass fiber cloth layer of the heat protection tape used for the installation of the liquid cargo containment system in the LNG ship. Figure 3 for Figure 1 Schematic diagram of the structure of the aluminum foil layer of the heat protection tape used for the installation of the liquid cargo containment system in LNG ships. Please refer to Figure 1 , Figure 2 , Figure 3 The thermal protection belt for installation of the liquid cargo containment system in an LNG ship provided by an embodiment of the utility model comprises an aluminum foil layer 1 and at least one glass fiber cloth layer 2, wherein the aluminum foil layer 1 and the glass fiber cloth layer 2 are stacked and connected; the aluminum foil layer 1 comprises an aluminum foil sheet 11 and an aluminum foil connecting sheet 12, wherein the aluminum foil sheet 11 is rectangular, and a plurality of the aluminum foil sheets 11 are connected end to end in sequence through the aluminum foil connecting sheet 12; the glass fiber cloth layer 2 comprises a glass fiber cloth sheet 21 and a glass fiber cloth connecting sheet 22, wherein the glass fiber cloth sheet 21 is rectangular, and a plurality of the glass fiber cloth sheets 21 are connected end to end in sequence through the glass fiber cloth connecting sheet 22; the glass fiber cloth connecting sheet 22 is located directly below the aluminum foil connecting sheet 12.

[0038] The utility model discloses a heat protection belt for installing a liquid cargo containment system in an LNG ship. During the installation process of the liquid cargo containment system in the LNG ship, the heat protection belt is placed on the surface of an insulating plate during welding to play a heat insulation protection role, thereby preventing welding slag and flames from damaging the surface of the insulating plate of the liquid cargo containment system in the LNG ship during the welding process.

[0039] Further references Figure 2 The glass fiber cloth connecting sheet 22 and the aluminum foil connecting sheet 12 of the utility model are provided with dense through holes 3.

[0040] It should be noted that the design of the dense through holes 3 on the glass fiber cloth connecting sheet 22 and the aluminum foil connecting sheet 12 greatly weakens the structural strength of the glass fiber cloth connecting sheet 22 and the aluminum foil connecting sheet 12, and the aluminum foil sheet 11 and the glass fiber cloth sheet 21 on the aluminum foil layer 1 and the glass fiber cloth layer 2 can be removed with a little force; it is convenient to remove the aluminum foil sheet 11 and the glass fiber cloth sheet 21 of corresponding size according to needs.

[0041] Furthermore, the aluminum foil sheet 11 and the glass fiber cloth sheet 21 of the present invention are disposable.

[0042] Figure 4 for Figure 1 Schematic diagram of the structure of the glass fiber cloth layer of the heat protection tape used for the installation of the liquid cargo containment system in LNG ships. Please refer to Figure 4The utility model discloses a heat protection belt for installing a liquid cargo containment system in an LNG ship, comprising an aluminum foil layer 1 and five glass fiber cloth layers 2, wherein the aluminum foil layer 1 and the five glass fiber cloth layers 2 are sequentially stacked and connected.

[0043] Furthermore, the width of the aluminum foil layer 1 of the present invention is smaller than the width of the glass fiber cloth layer 2 .

[0044] Figure 5 for Figure 1 Schematic diagram of the structure of the heat protection tape reel used for the installation of the liquid cargo containment system in LNG ships. Please refer to Figure 5 The thermal protection belt for installation of the liquid cargo containment system in an LNG ship of the utility model further comprises a reel 4, on which the aluminum foil layer 1 and the glass fiber cloth layer 2 are wrapped for easy storage.

[0045] Based on the above description, it can be seen that the advantages of the utility model are:

[0046] The utility model discloses a heat protection belt for installing a liquid cargo containment system in an LNG ship. During the installation process of the liquid cargo containment system in the LNG ship, the heat protection belt is placed on the surface of an insulating plate during welding to play a heat insulation protection role, thereby preventing welding slag and flames from damaging the surface of the insulating plate of the liquid cargo containment system in the LNG ship during the welding process.

[0047] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A thermal protection belt for installation of a liquid cargo containment system in an LNG ship, characterized in that: It comprises an aluminum foil layer (1) and at least one glass fiber cloth layer (2), wherein the aluminum foil layer (1) and the glass fiber cloth layer (2) are stacked and connected; The aluminum foil layer (1) comprises an aluminum foil sheet (11) and an aluminum foil connecting sheet (12); the aluminum foil sheet (11) is rectangular, and a plurality of the aluminum foil sheets (11) are connected end to end in sequence via the aluminum foil connecting sheet (12); The glass fiber cloth layer (2) comprises a glass fiber cloth piece (21) and a glass fiber cloth connecting piece (22); the glass fiber cloth piece (21) is rectangular, and a plurality of the glass fiber cloth pieces (21) are connected end to end in sequence via the glass fiber cloth connecting piece (22); The glass fiber cloth connecting piece (22) is located directly below the aluminum foil connecting piece (12).

2. The thermal protection belt for installation of the liquid cargo containment system in an LNG ship according to claim 1 is characterized in that: The glass fiber cloth connecting piece (22) and the aluminum foil connecting piece (12) are provided with dense through holes (3).

3. The thermal protection belt for installation of the liquid cargo containment system in an LNG ship according to claim 1 is characterized in that: The aluminum foil sheet (11) and the glass fiber cloth sheet (21) are disposable.

4. The thermal protection belt for installation of the liquid cargo containment system in an LNG ship according to claim 1, characterized in that: The thermal protection belt used for installing the liquid cargo containment system in an LNG ship comprises an aluminum foil layer (1) and five glass fiber cloth layers (2), wherein the aluminum foil layer (1) and the five glass fiber cloth layers (2) are sequentially stacked and connected.

5. The thermal protection belt for installation of the liquid cargo containment system in an LNG ship according to claim 1, characterized in that: The width of the aluminum foil layer (1) is smaller than the width of the glass fiber cloth layer (2).

6. The thermal protection belt for installation of the liquid cargo containment system in an LNG ship according to claim 1, characterized in that: The thermal protection belt used for installing the liquid cargo containment system in an LNG ship also includes a reel (4), and the aluminum foil layer (1) and the glass fiber cloth layer (2) are wrapped around the reel (4).

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