S-shaped swash plate structure of C-shaped liquefied natural gas (LNG) ship liquid cargo tank

Abstract

The utility model discloses an S-shaped swash plate structure of a C-shaped liquefied natural gas (LNG) ship liquid cargo tank, relates to the technical field of C-shaped LNG ship liquid cargo tanks, and is used for solving the problem of LNG sloshing in the C-shaped LNG ship liquid cargo tank. The left view of the swash plate body is S-shaped, the front view of the swash plate body is circular, an opening is formed in the swash plate body, the front view diameter of the swash plate is consistent with the inner diameter of the LNG ship liquid cargo tank, and the edge of the swash plate extends to serve as a connecting part and is connected to the tank wall of the LNG ship liquid cargo tank through bolts. Two S-shaped swash plates are arranged in the liquid cargo tank and symmetrically arranged on the inner wall of the C-shaped LNG ship liquid cargo tank, the distance between each S-shaped swash plate and the center of the LNG ship liquid cargo tank is 0.25 times of the total length of the LNG ship liquid cargo tank, and the aperture of each swash plate is 0.5 m. After the C-shaped LNG ship cargo tank oscillation suppression device is adopted, liquid is blocked by the oscillation suppression plate, oscillation is reduced, the liquid can freely flow through a small number of small holes in the oscillation suppression plate, the phenomenon that the oscillation is more violent due to liquid accumulation is avoided, and the oscillation suppression effect on the C-shaped LNG ship cargo tank is remarkable.

Description

Technical Field

[0001] The utility model relates to the technical field of C-type LNG ship liquid cargo tanks, in particular to an annular sway control plate structure of a C-type LNG ship liquid cargo tank. Background Art

[0002] In the existing C-type LNG carrier cargo tanks, since the temperature of liquid natural gas is much lower than the ambient temperature, part of the liquid natural gas will gradually evaporate into gaseous natural gas through heat transfer. However, since the LNG carrier cargo tanks are not full, sloshing will occur during transportation, aggravating the evaporation loss and posing a safety hazard to components that may damage the cargo tanks. Summary of the invention

[0003] In view of the above problems, the utility model provides an S-shaped sloshing plate structure for a C-type LNG ship's liquid cargo tank, which can eliminate the energy generated by sloshing through the sloshing plate in time, reduce evaporation losses, and ensure the safety of the C-type LNG ship's liquid cargo tank.

[0004] The S-shaped swash plate structure of the C-type LNG carrier cargo tank has an S-shaped left view and a circular front view with holes on it. The edge of the swash plate extends as a connection part and is bolted to the bulkhead of the LNG carrier cargo tank. There are two S-shaped swash plates in the cargo tank, symmetrically arranged on the inner wall of the C-type LNG carrier cargo tank.

[0005] The distance between the S-shaped damping plate and the center of the LNG ship's liquid cargo tank is 0.25 times the total length of the LNG ship's liquid cargo tank. The diameter of the front view of the damping plate is consistent with the inner diameter of the LNG ship's liquid cargo tank. The aperture of the damping plate is 0.5m.

[0006] After the utility model is adopted, the liquid is blocked by the sloshing plate, the sloshing is reduced, and the liquid can flow freely through a small number of small holes on the sloshing plate, and there will be no liquid accumulation to make the sloshing more severe, and the sloshing effect on the liquid cargo tank of the C-type LNG ship is remarkable. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a C-type LNG carrier liquid cargo tank S-shaped swing plate structure diagram

[0008] Figure 2 A front view of an S-shaped sway plate in a C-type LNG tank tank.

[0009] Among them: 1. swing control plate, 2. bolts. DETAILED DESCRIPTION

[0010] C-type LNG carrier liquid cargo tank S-shaped swing plate structure Figure 1In the figure, two S-shaped swing control plates 1 are arranged at a distance from the center of the LNG ship's liquid cargo tank that is 0.25 times the total length of the LNG ship's liquid cargo tank. The swing control plates are fixed to the inner wall of the LNG ship's liquid cargo tank in four directions by bolts 2. The diameter of the front view of the swing control plate is consistent with the inner diameter of the LNG ship's liquid cargo tank, and the opening of the swing control plate is 0.5m.

[0011] Here’s how it works:

[0012] The LNG sloshing is blocked and stopped after hitting the sloshing plate. At the same time, LNG can flow through the small holes on the sloshing plate to avoid liquid accumulation and greater sloshing, effectively reducing the sloshing of LNG in the liquid cargo tank of the C-type LNG carrier.

Claims

1. A C-type LNG carrier liquid cargo tank S-shaped swing plate structure, characterized in that The left view of the swing plate body is S-shaped, and the front view is circular, with openings on it. The edge of the swing plate extends as a connecting part, which is connected to the bulkhead of the liquid cargo tank of the LNG ship by bolts. There are two S-shaped swing plates in the liquid cargo tank, which are symmetrically arranged on the inner wall of the liquid cargo tank of the C-type LNG ship.

2. The S-shaped sway plate structure of a C-type LNG carrier liquid cargo tank according to claim 1 is characterized in that The distance between the S-shaped damping plate and the center of the LNG ship's liquid cargo tank is 0.25 times the total length of the LNG ship's liquid cargo tank. The diameter of the front view of the damping plate is consistent with the inner diameter of the LNG ship's liquid cargo tank. The aperture of the damping plate is 0.5m.

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