Three-surface fixing corner fitting for liquid cargo containment system in LNG (Liquefied Natural Gas) ship

Abstract

The utility model relates to a three-surface fixing corner fitting for a liquid cargo containment system in an LNG (Liquefied Natural Gas) ship. The three-surface fixing corner fitting comprises a first connecting plate, a second connecting plate, a third connecting plate, an inner surface connecting stud and an outer surface connecting stud, the first connecting plate and the second connecting plate are both in a rectangular plate shape, and the third connecting plate is in a pentagonal plate shape. The first connecting plate and the second connecting plate are vertically connected to two adjacent edge openings of the third connecting plate respectively, and the adjacent edge openings of the first connecting plate and the second connecting plate are connected; the middle portions of the inner faces of the first connecting plate, the second connecting plate and the third connecting plate are fixedly connected with the inner face connecting studs, and the outer faces of the first connecting plate, the second connecting plate and the third connecting plate are fixedly connected with the four outer face connecting studs. The three-face fixing corner fitting has the advantages that the connecting strength and the connecting stability of insulating plates at the corners of a liquid cargo containment system in an LNG ship are improved.

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 three-sided fixed angle piece used for 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, when the insulating plate of the current LNG ship's in-vessel liquid cargo containment system is attached to the inner wall of the LNG ship's in-vessel liquid cargo containment system, it is easy to fall off, thereby causing an unstable connection.

[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 three-sided fixed angle piece for a liquid cargo containment system in an LNG ship, which improves the connection strength and connection stability of insulating plates at corners of the liquid cargo containment system in the LNG ship.

[0011] The utility model provides a three-sided fixed angle piece for a liquid cargo containment system in an LNG ship, comprising a first connecting plate, a second connecting plate, a third connecting plate, an inner connecting stud and an outer connecting stud; the first connecting plate and the second connecting plate are both in the shape of a rectangular plate, and the third connecting plate is in the shape of a pentagonal plate; the first connecting plate and the second connecting plate are respectively vertically connected at two adjacent edge portions of the third connecting plate, and the adjacent edge portions of the first connecting plate and the second connecting plate are connected; the inner connecting stud is fixedly connected to the middle of the inner surface of the first connecting plate, the second connecting plate and the third connecting plate, and four outer connecting studs are fixedly connected to the outer surfaces of the first connecting plate, the second connecting plate and the third connecting plate.

[0012] By adopting the above technical solution, the three-sided fixed angle fittings are installed on the insulating plates at the corners of the liquid cargo containment system in the LNG ship, which play a role in connecting and fixing the insulating plates; they are respectively connected to the three insulating plates at the corners through the first connecting plate, the second connecting plate and the third connecting plate, and are locked and fixed through the inner connecting studs and the outer connecting studs; thereby improving the connection strength and stability of the insulating plates.

[0013] Furthermore, the angle between the first connecting plate and the second connecting plate is 90 degrees or 135 degrees.

[0014] Furthermore, the four outer connecting studs are respectively connected to four corners of the outer sides of the first connecting plate and the second connecting plate.

[0015] Furthermore, the four outer connecting studs are respectively connected to the remaining four corners of the third connecting plate.

[0016] Furthermore, the first connecting plate, the second connecting plate and the third connecting plate are all integrally connected.

[0017] The three-sided fixed angle piece for the liquid cargo containment system in an LNG ship provided by the utility model is installed on the insulating board at the corner of the liquid cargo containment system in the LNG ship, and plays a connecting and fixing role for the insulating board; it is respectively connected to the three insulating boards at the corner through the first connecting plate, the second connecting plate and the third connecting plate, and is locked and fixed through the inner connecting studs and the outer connecting studs; thereby improving the connection strength and connection stability of the insulating board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a three-sided fixed angle piece for a liquid cargo containment system in an LNG ship provided in an embodiment of the utility model.

[0019] Figure 2 for Figure 1A structural schematic diagram from another perspective of the three-sided fixed angle fittings used in the liquid cargo containment system on LNG ships.

[0020] Figure 3 for Figure 1 A structural schematic diagram showing another perspective of the three-sided fixed angle fittings used in the liquid cargo containment system in an LNG ship.

[0021] Figure 4 for Figure 1 A structural schematic diagram from another perspective of the three-sided fixed angle fittings used in the liquid cargo containment system on LNG ships.

[0022] Figure 5 for Figure 1 Schematic diagram of the cross-sectional structure of the three-sided fixed angle fittings used in the liquid cargo containment system on LNG ships.

[0023] The reference numerals and components involved in the drawings are as follows:

[0024] 1. First connecting plate

[0025] 2. Second connecting plate

[0026] 3. The third connecting plate

[0027] 4. Internal connection studs

[0028] 5. External connection studs DETAILED DESCRIPTION

[0029] 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.

[0030] 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.

[0031] Example 1

[0032] Figure 1 A schematic diagram of the structure of a three-sided fixed angle piece for a liquid cargo containment system in an LNG ship provided by an embodiment of the utility model. Figure 2 for Figure 1 Another structural diagram of the three-sided fixed angle fittings used in the LNG carrier liquid cargo containment system. Figure 3 for Figure 1 Another structural diagram of the three-sided fixed angle fittings used in the liquid cargo containment system in LNG ships. Figure 4 for Figure 1 Another structural diagram of the three-sided fixed angle fittings used in the liquid cargo containment system in LNG ships. Figure 5 for Figure 1 The cross-sectional structure diagram of the three-sided fixed angle fittings used in the liquid cargo containment system in LNG ships. Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The three-sided fixed angle fitting for the liquid cargo containment system in an LNG ship provided by an embodiment of the utility model comprises a first connecting plate 1, a second connecting plate 2, a third connecting plate 3, an inner connecting stud 4 and an outer connecting stud 5; the first connecting plate 1 and the second connecting plate 2 are both rectangular plates, and the third connecting plate 3 is pentagonal plate; the first connecting plate 1 and the second connecting plate 2 are respectively vertically connected at two adjacent edges of the third connecting plate 3, and the adjacent edges of the first connecting plate 1 and the second connecting plate 2 are connected; the inner connecting stud 4 is fixedly connected to the middle of the inner surface of the first connecting plate 1, the second connecting plate 2 and the third connecting plate 3, and four outer connecting studs 5 are fixedly connected to the outer surfaces of the first connecting plate 1, the second connecting plate 2 and the third connecting plate 3.

[0033] It should be noted that the three-sided fixed angle fitting of the utility model is installed on the insulating board at the corner of the liquid cargo containment system in the LNG ship, and plays a role in connecting and fixing the insulating board; specifically, the first connecting plate 1, the second connecting plate 2 and the third connecting plate 3 are respectively connected to the three insulating boards at the corner, and are locked and fixed by the inner connecting studs 4 and the outer connecting studs 5; thereby improving the connection strength and stability of the insulating board.

[0034] Furthermore, the angle between the first connecting plate 1 and the second connecting plate 2 is 90 degrees or 135 degrees.

[0035] Further references Figure 2 The four outer connecting studs 5 of the utility model are respectively connected to the four corners of the outer sides of the first connecting plate 1 and the second connecting plate 2.

[0036] Further references Figure 4 The four outer connecting studs 5 of the utility model are respectively connected to the remaining four corners of the third connecting plate 3.

[0037] Furthermore, the first connecting plate 1 , the second connecting plate 2 and the third connecting plate 3 are all integrally connected.

[0038] Based on the above description, it can be seen that the advantages of the utility model are:

[0039] The three-sided fixed angle piece for the liquid cargo containment system in an LNG ship provided by the utility model is installed on the insulating board at the corner of the liquid cargo containment system in the LNG ship, and plays a connecting and fixing role for the insulating board; the first connecting plate 1, the second connecting plate 2 and the third connecting plate 3 are respectively connected to the three insulating boards at the corner, and are locked and fixed by the inner connecting studs 4 and the outer connecting studs 5; thereby improving the connection strength and connection stability of the insulating board.

[0040] 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 three-sided fixed angle fitting for a liquid cargo containment system in an LNG ship, characterized in that: It comprises a first connecting plate (1), a second connecting plate (2), a third connecting plate (3), an inner connecting stud (4) and an outer connecting stud (5); The first connecting plate (1) and the second connecting plate (2) are both in the shape of rectangular plates, and the third connecting plate (3) is in the shape of a pentagonal plate; The first connecting plate (1) and the second connecting plate (2) are respectively vertically connected to two adjacent edges of the third connecting plate (3), and the adjacent edges of the first connecting plate (1) and the second connecting plate (2) are connected; The inner surface connecting studs (4) are fixedly connected to the middle of the inner surfaces of the first connecting plate (1), the second connecting plate (2) and the third connecting plate (3), and the outer surfaces of the first connecting plate (1), the second connecting plate (2) and the third connecting plate (3) are fixedly connected to four outer surface connecting studs (5).

2. The three-sided fixed angle fitting for the liquid cargo containment system in an LNG ship according to claim 1 is characterized in that: The included angle between the first connecting plate (1) and the second connecting plate (2) is 90 degrees or 135 degrees.

3. The three-sided fixed angle fitting for the liquid cargo containment system in an LNG ship according to claim 1 is characterized in that: The four outer connecting studs (5) are respectively connected to the four outer corners of the first connecting plate (1) and the second connecting plate (2).

4. The three-sided fixed angle fitting for the liquid cargo containment system in an LNG ship according to claim 1 is characterized in that: The four outer connecting studs (5) are respectively connected to the remaining four corners of the third connecting plate (3).

5. The three-sided fixed angle fitting for the liquid cargo containment system in an LNG ship according to claim 1 is characterized in that: The first connecting plate (1), the second connecting plate (2) and the third connecting plate (3) are all integrally connected.

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