Methanol fuel cabin arrangement structure of semi-submerged ship

Abstract

The utility model relates to a methanol fuel cabin arrangement structure of a semi-submerged ship, which is characterized in that methanol fuel storage cabins are respectively arranged on a left board and a right board on a main deck close to the rear end of a forecastle of the semi-submerged ship, and the two methanol fuel storage cabins are symmetrically arranged by taking a medial axis surface of the semi-submerged ship as a central surface. The methanol storage cabins are arranged on the two broadsides above the main deck and are adjacent to the rear end of the first building, the volume of the water ballast space is not occupied, the adverse effect on the stability of the semi-submerged ship is minimized, and therefore the semi-submerged ship effectively uses methanol fuel as second fuel.

Description

TECHNICAL FIELD

[0001] The utility model relates to a methanol fuel cabin arrangement structure of semi-submersible ship belongs to semi-submersible ship fuel cabin design technical field. BACKGROUND

[0002] With the increasingly stringent environmental regulations, using methanol fuel as clean energy has become a major trend in the shipping industry. Compared with other traditional marine fuels, the most important feature of methanol fuel is small environmental impact and small emission pollution. Using methanol as fuel can reduce about 10% of CO2 emissions and reduce about 99% of sulfur oxide emissions, and if green methanol is used, nearly 100% of CO2 emissions can be reduced. In recent years, large container ships, bulk carriers and other ships have adopted methanol dual fuel design, but methanol has not been used on semi-submersible ships.

[0003] With the entry into force of EU ETS and other regulations, semi-submersible ships, as a special type of offshore ship, also need to develop new designs with low carbon emissions to reduce operating costs and improve market competitiveness. Methanol, as a new type of clean marine energy, has the characteristics of storage at room temperature and normal pressure, and compared with LNG and ammonia and other low-carbon fuels, the layout and design of the fuel cabin and gas supply system have less impact on the main performance of the semi-submersible ship, making it a suitable choice for the development of semi-submersible ships towards low carbon. SUMMARY

[0004] The existing semi-submersible ships basically use conventional fuel propulsion, which has high carbon emission intensity and cannot adapt to the increasingly stringent emission regulations. Due to the special layout characteristics of semi-submersible ships, arranging the methanol fuel cabin in the main hull will occupy the volume of the ballast water tank, affecting the submergence stability and submergence depth of the semi-submersible ship and other core technical indicators. The methanol fuel cabin of the utility model is arranged at the rear end of the forecastle, does not occupy the volume of the ballast water tank, minimizes the adverse effects on the stability of the semi-submersible ship, and reasonably arranges the methanol fuel preparation room, filling station and ventilation mast, etc. on the basis of meeting the design regulations of the methanol system, the impact on the technical performance of the semi-submersible ship is minimized.

[0005] The utility model adopts the following technical scheme:

[0006] A methanol fuel cabin arrangement structure of semi-submersible ship, the left and right sides of the main deck adjacent to the rear end of the forecastle of the semi-submersible ship are arranged with a methanol fuel storage cabin 4 respectively, and the two methanol fuel storage cabins 4 are symmetrically arranged with the center plane of the semi-submersible ship as the center plane.

[0007] Preferably, the methanol daily cabin 2 and the methanol fuel preparation room 3 are arranged at the top of the methanol fuel storage cabin 4, and the methanol gas supply system is arranged in the methanol fuel preparation room 3.

[0008] Furthermore, the methanol refueling station 7 is located on both sides of the main deck, at the stern of the methanol fuel storage tank 4, at the position furthest from the semi-submersible ship's forecastle.

[0009] Furthermore, the semi-submersible vessel has a superstructure living quarters 5 located on the upper part of the forecastle.

[0010] Furthermore, it also includes a methanol venting mast 1, which is located at the top of the methanol fuel preparation room 2 at the position furthest from the superstructure living quarters 5.

[0011] Preferably, an isolated empty compartment is set between the methanol fuel storage tank and adjacent compartments and spaces.

[0012] Preferably, the two methanol fuel storage tanks 4 are of the same shape and size.

[0013] Furthermore, the methanol refueling station 7 is embedded in the space separated at the edge of the methanol storage tank.

[0014] Preferably, the maximum water level after the semi-submersible vessel submerges is located at the height of the upper middle part of the first deck.

[0015] Preferably, a space is stored between the first floor and the two methanol storage tanks, and the space houses a movable pontoon.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1) The methanol storage tanks are located on both sides above the main deck and adjacent to the rear of the forecastle, without occupying the volume of the ballast water tanks, thus minimizing the adverse impact on the stability of the semi-submersible vessel.

[0018] 2) The methanol fuel preparation room, refueling station and venting mast are arranged in a reasonable manner, so as to minimize the impact on the technical performance of the semi-submersible vessel while meeting the design regulations of the methanol system.

[0019] 3) The methanol refueling station is located on both sides of the main deck, aft of the fuel tanks, as far away from the forecastle as possible. The methanol fuel preparation room and methanol day use room are located on top of the fuel tanks, and the nitrogen generator is located on top of the fuel tanks or inside the engine room. The vent mast is located on top of the fuel preparation room, as far away from the superstructure as possible. The methanol gas supply system is located inside the fuel preparation room. The layout is reasonable and the structure has good stability. Attached Figure Description

[0020] Figure 1 This is a front view of the methanol fuel tank layout structure of the semi-submersible vessel of this utility model.

[0021] Figure 2 This is a top view of the methanol fuel tank arrangement structure of the semi-submersible vessel of this utility model at the height of the main deck.

[0022] Figure 3The utility model discloses a methanol fuel cabin arrangement structure of semi-submersible ship is located the plan view of the bottom height of superstructure.

[0023] In the drawing, 1. air permeable mast, 2. methanol daily cabin, 3. methanol fuel preparation room, 4. methanol storage cabin, 5. superstructure living cabin, 6. forecastle, 7 methanol filling station, 8. nitrogen generator room. DETAILED DESCRIPTION

[0024] The utility model is further explained below in connection with the drawings and specific embodiments.

[0025] Referring to Figures 1-3 , a methanol fuel cabin arrangement structure of semi-submersible ship, the left and right sides of the main deck close to the rear end of the forecastle of semi-submersible ship are each arranged with a methanol fuel storage cabin 4, and the two methanol fuel storage cabins 4 are symmetrically arranged with the center plane of the center axis of semi-submersible ship as the center plane.

[0026] In this embodiment, referring to Figure 1 , the methanol daily cabin 2 and the methanol fuel preparation room 3 are arranged on the top of the methanol fuel storage cabin 4, and the methanol gas supply system is arranged in the methanol fuel preparation room 3.

[0027] Referring to Figure 2 , the methanol filling station 7 is arranged on the two sides of the main deck and is located at the position farthest from the forecastle of semi-submersible ship at the tail of the methanol fuel storage cabin 4.

[0028] In this embodiment, referring to Figure 1 , 3 , the upper part of the forecastle of semi-submersible ship is provided with the superstructure living cabin 5.

[0029] In this embodiment, referring to Figure 1 , the utility model further includes a methanol air permeable mast 1, and the methanol air permeable mast 1 is arranged at the position farthest from the superstructure living cabin 5 on the top of the methanol fuel preparation room 2.

[0030] In this embodiment, the methanol fuel storage cabin is provided with an isolated empty cabin between the adjacent cabin and space. The drawing does not show this.

[0031] In this embodiment, referring to Figure 2 , the shape and size of the two methanol fuel storage cabins 4 are the same.

[0032] In this embodiment, referring to Figure 2 , the methanol filling station 7 is embedded in the space separated by the edge position inside the methanol storage cabin.

[0033] In this embodiment, referring to Figure 1 , the maximum water level after the semi-submersible ship is submerged is located at the upper height of the middle part of the forecastle.

[0034] In this embodiment, referring to Figure 2and Figure 3 A space is stored between the bow and the two methanol storage cabins, and the space stores movable pontoons.

[0035] The methanol storage cabin is arranged at the two sides of the upper part of the main deck and is adjacent to the rear end of the bow, does not occupy the volume of the ballast water tank, minimizes the adverse effect on the stability of the semi-submersible ship, and has the advantages that the methanol fuel preparation room, the filling station and the air vent mast are reasonably arranged, the influence on the technical performance of the semi-submersible ship is minimized on the basis of meeting the methanol system design regulations, the methanol filling station is arranged at the two sides of the main deck and the rear end of the fuel cabin, is far away from the bow as far as possible, the methanol fuel preparation room and the methanol daily use cabin are arranged on the top of the fuel cabin, the nitrogen generator is arranged on the top of the fuel cabin or in the engine room, the air vent mast is arranged on the top of the fuel preparation room and is far away from the upper building as far as possible, and the methanol gas supply system is arranged in the fuel preparation room. The layout is reasonable, and the structure is stable.

[0036] The above is the preferred embodiment of the utility model, and various transformations or improvements can be made on the basis of the utility model by those skilled in the art, and these transformations or improvements shall belong to the range required to be protected by the utility model without departing from the general concept of the utility model.

Claims

1. A methanol fuel cabin arrangement of a semi-submersible vessel, characterized in that: two methanol fuel storage cabins (4) are arranged on the main deck close to the stern of the semi-submersible vessel, one on each side, and the two methanol fuel storage cabins (4) are symmetrically arranged with the center plane of the semi-submersible vessel as the center plane.

2. A methanol fuel tank arrangement for a semi-submersible vessel as claimed in claim 1, characterised in that: a methanol daily use cabin (2) and a methanol fuel preparation room (3) are arranged on the top of the methanol fuel storage cabin (4), and a methanol gas supply system is arranged in the methanol fuel preparation room (3).

3. A methanol fuel tank arrangement for a semi-submersible vessel as claimed in claim 2, characterised in that: a methanol filling station (7) is arranged on the main deck on both sides, located at the farthest position from the bow of the semi-submersible vessel at the stern of the methanol fuel storage cabin (4).

4. A methanol fuel tank arrangement for a semi-submersible vessel as claimed in claim 2, characterised in that: the upper part of the bow of the semi-submersible vessel is provided with superstructure living cabin (5).

5. A methanol fuel tank arrangement for a semi-submersible vessel as claimed in claim 4, characterised in that: a methanol gas vent mast (1) is also included, which is arranged on the top of the methanol fuel preparation room (3) at the position farthest from the superstructure living cabin (5).

6. The methanol fuel tank arrangement of a semi-submersible vessel according to claim 1, characterized in that: an isolated empty cabin is arranged between the methanol fuel storage cabin and the adjacent cabin and space.

7. A methanol fuel tank arrangement for a semi-submersible vessel according to claim 1, characterized in that: the two methanol fuel storage cabins (4) are the same in shape and size.

8. A methanol fuel tank arrangement for a semi-submersible vessel as claimed in claim 3, characterised in that: the methanol filling station (7) is embedded in the space separated by the edge position inside the methanol storage cabin.

9. Semi-submersible vessel's methanol fuel tank arrangement according to claim 1, characterized in that: the maximum water level after the semi-submersible vessel is submerged is located at an upper height in the middle of the bow.

10. The methanol fuel tank arrangement of a semi-submersible vessel as claimed in claim 1, characterized in that: a space is stored between the bow and the two methanol storage cabins, and a movable floating box is stored in the space.

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