CN111439336A - FSRU ship deck - Google Patents

Abstract

The invention provides an FSRU ship deck which comprises a main deck, wherein a mooring cable pile is arranged on the main deck close to a bow, a cable guide hole is formed in the edge of the main deck, a mooring cable is bound on the mooring cable pile, a raised deck is arranged in the middle of the main deck, and the raised deck comprises a narrow vertical part, a trapezoidal part and a wide vertical part from the bow to the stern. According to the invention, the convex deck is designed into a step-shaped shape, so that the width of the pedestrian passageway at the bow part is increased on the premise of the same mooring range of the bow part; under the condition that the pedestrian passageways on the main deck are the same in width, the cable guide hole can be designed to be farther away from the bow, and the range of a mooring area at the bow is enlarged; the deck design mode in the invention does not need to modify the hull line type, shortens the design period and reduces the cost.

Description

A FSRU ship deck

technical field

The present invention relates to the technical field of large-scale FSRU deck design, and more particularly, to an FSRU ship deck.

Background technique

FSRU (Floating Storage and Regasification Unit) is referred to as floating LNG storage and regasification unit. It integrates various functions such as LNG receiving, storage, transshipment and regasification. It can be divided into two types. One is It is moored to a wharf (fixed wharf or floating wharf) as an LNG receiving terminal, and the other has self-propelled function and can carry out LNG transportation. FSRU can be roughly divided into three categories according to the size of the cabin capacity: small (with a cabin capacity of less than 100,000 cubic meters), medium (with a cabin capacity of 100,000 to 200,000 cubic meters) and large (with a cabin capacity of more than 200,000 cubic meters).

At present, a large part of the large FSRUs on the market use GTT MARK III as the cargo maintenance system. This system has the advantages of low cargo evaporation rate and light weight, and is favored by the market. However, due to the shape of its first cargo tank Requirements, it brings great difficulties to the determination of the hull arrangement and speed index, the mooring arrangement is difficult at the linear shrinkage of the bow, and the pedestrian passage is narrow. The existing technical scheme generally spends a lot of manpower and material resources to carry out model tests, modify the hull line type and the hull main deck form, and extend the flat edge line to meet the layout requirements. However, such treatment will lead to poor ship performance, higher fuel consumption, increased bow slap, and extended design cycles and increased costs.

Therefore, in the prior art, there is an urgent need for a technical solution that does not modify the line shape, and can ensure the excellent rapidity of the ship, reduce the design cycle, and reduce the design cost.

SUMMARY OF THE INVENTION

In view of the above-mentioned deficiencies of the prior art, the present invention provides an FSRU ship deck which can increase the mooring range of the bow or the range of the walkway of the bow.

To achieve the above object, the present invention is achieved through the following technical solutions:

An FSRU ship deck, including a main deck, on which a bollard is arranged at a position close to the bow, a fairlead is arranged on the edge of the main deck, and a mooring cable is bundled on the bollard. The middle part of the main deck is provided with a raised deck, and the raised deck includes a narrow vertical part, a trapezoidal part and a wide vertical part from the bow to the stern.

The fairlead is provided at the edge of the main deck, in the region of the flanks of the wide vertical.

The fairlead is provided at the edge of the main deck, in the region of the flanks of the trapezoid.

The fairlead is provided at the edge of the main deck, in the region of the flanks of the narrow vertical.

The lower half of the two sides of the raised deck is a vertical plane, and the upper half is an inclined plane.

The inclination angle of the inclined plane is 45°.

Compared with the prior art, the present invention has the following beneficial effects: by designing the raised deck into a step-like shape, on the premise of the same mooring range at the bow, the width of the pedestrian passage at the bow is enlarged; Under the condition of the same width of the pedestrian passage on the upper part of the ship, the fairlead can be designed farther away from the bow, and the scope of the mooring area of the bow part is enlarged; the deck design method in the present invention does not need to modify the hull line type, shortening the design cycle, reducing costs.

Description of drawings

FIG. 1 is a schematic top view of the structure of the present invention.

Fig. 2 is a cross-sectional view taken along the line A-A of Fig. 1 .

FIG. 3 is a schematic top-view structural diagram of a deck of an FSRU ship in the prior art.

Reference numerals: 1 - mooring line, 2 - raised deck, 3 - main deck, 4 - fairlead, 5 - bollard, 6 - narrow vertical, 7 - trapezoid, 8 - wide vertical department.

Detailed ways

The present invention will be further described below according to specific embodiments.

As shown in Figure 1-2, the FSRU ship deck includes the main deck 3. The main deck 3 is provided with a bollard 5 near the bow of the ship. The edge of the main deck 3 is provided with a fairlead 4, and the bollard 5 is bundled with There is a mooring line 1, and a raised deck 2 is provided in the middle part of the main deck 3. The raised deck 2 includes a narrow vertical part 6, a trapezoidal part 7 and a wide vertical part 8 from the bow to the stern. In this embodiment, on one side edge of the main deck, the fairlead 4 is located in the area corresponding to the flank of the narrow vertical part 6 , and on the other side edge of the main deck, the edge of the main deck 3 is located in the wide vertical part 8 Fairleads 4 are provided in the area of the flanks of the trapezoid portion 7, in the area of the flanks located in the trapezoidal portion 7, and in the area of the flanks located in the narrow vertical portion 6, and the furthest fairlead 4 can be set to the wide vertical portion. In the area of the flank of 8, the mooring range of the mooring line 1 on the deck is expanded. Starting from the narrowed area of the bow, adjust the structure of the raised deck 2, and design a stepped structure such as a wide vertical part 8, a trapezoidal part 7 and a narrow vertical part 6, so that the main deck 3 at the narrowed part has a stepped structure. The space is enlarged, which neither affects the structural strength of the main hull nor the safety passage in the raised deck 2. In the case of the same mooring length at the bow, the pedestrian passage of the main deck 3 at the bow can be increased after the ship is moored. Space, the pedestrian passage space is the area between the edge of the raised deck 2 and the edge of the main deck 3 in Figure 1, which is conducive to the movement and operation of personnel when the ship is in the mooring state; when the size of the pedestrian passage space is the same, the use of this Compared with the simple rectangular raised deck 2 in the prior art in the design of the invention, the mooring range of the bow is larger.

The lower half of the two sides of the raised deck 2 is a vertical plane, and the upper half is an inclined plane. The inclination angle of the inclined plane is 45°. This design also satisfies the shape requirements and volume of the cargo tank below the raised deck 2, saves the space on both sides of the raised deck 2, and makes the pedestrian passage space on the main deck 3 wider.

The above are only the preferred embodiments of the present invention, but the present invention is not limited to the above-mentioned specific embodiments. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, the Several modifications and improvements are made, which all belong to the protection scope of the present invention.

Claims (6)

1. The utility model provides a FSRU boats and ships deck, includes main deck (3), the position that is close to the bow on main deck (3) is provided with mooring bollard (5), the edge of main deck (3) is provided with fairlead (4), mooring rope (1) have been binded on mooring bollard (5), characterized by, mid portion on main deck (3) is provided with protruding deck (2), protruding deck (2) include narrow vertical portion (6), trapezoidal portion (7) and wide vertical portion (8) from the bow to the stern direction.

2. An FSRU vessel deck according to claim 1, wherein the fairlead (4) is provided in the edge of the main deck (3) in the area of the side wings of the wide vertical section (8).

3. An FSRU vessel deck according to claim 1, wherein the edge of the main deck (3) in the area of the side wings of the trapezoidal section (7) is provided with the fairlead (4).

4. An FSRU vessel deck according to claim 1, wherein the fairlead (4) is provided in the edge of the main deck (3) in the area of the side wings of the narrow vertical portion (6).

5. An FSRU vessel deck according to claim 1, wherein the lower half of the two sides of the raised deck (2) is a vertical plane and the upper half is an inclined plane.

6. An FSRU vessel deck as claimed in claim 5, wherein the inclination angle of the inclined plane is 45 °.

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