A ship's independent methanol fuel tank

Abstract

The present invention relates to the field of ship design and manufacturing technology, and discloses an independent methanol fuel tank for a ship, comprising a methanol fuel tank shell, the methanol fuel tank shell being a single-shell structure, a methanol fuel tank shell frame being provided on the exterior of the methanol fuel tank shell, a methanol fuel tank shell strong frame being provided on the bottom of the methanol fuel tank shell, and at least four modular support brackets being provided on the methanol fuel tank shell strong frame. The methanol fuel tank shell is supported on a deck platform via the modular support brackets, and the modular support brackets can limit the longitudinal, transverse, and vertical movement of the methanol fuel tank shell. The present invention provides modular support brackets at the bottom of the methanol fuel tank, so that the methanol fuel tank does not constitute part of the hull structure and thus does not contribute to the overall longitudinal strength of the hull, forming an independent methanol fuel tank system. The methanol fuel tank can adopt a single-shell structure, effectively reducing the weight of the methanol fuel tank structure and saving shipyard construction costs.

Description

Technical Field

[0001] The present invention relates to the technical field of ship design and manufacturing, and in particular to an independent methanol fuel tank for a ship. Background Art

[0002] Methanol fuel tanks are generally categorized as either integral or standalone. Integral methanol fuel tanks are those that form part of the ship's hull structure. In existing integral methanol fuel tank designs, the tank, along with the adjacent hull structure, is subject to the total longitudinal load of the hull beam, resulting in significant external loads. This necessitates a double hull design to ensure the safety of the fuel containment system. This involves installing an additional protective structure outside the tank's liner. Consequently, the protective hull is relatively heavy for integral fuel tanks.

[0003] In addition, considering the special coating requirements of the methanol fuel tank, the aggregates on the hull of the methanol fuel tank need to be turned outward to the outside of the fuel tank, which forms a narrow space with the aggregates on the isolation shell, which has an adverse impact on the construction of the shipyard, especially for ships with limited deck space layout requirements. It is also not conducive to maintenance and inspection in daily operations in the later stage. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the existing integral methanol fuel tank is heavy, occupies a large space, and is inconvenient to build and maintain.

[0005] In order to solve the above technical problems, the technical solution of the present invention is to provide an independent methanol fuel tank for ships, including a methanol fuel tank shell, the methanol fuel tank shell is a single-shell structure, a methanol fuel tank shell frame is provided on the outside of the methanol fuel tank shell, a methanol fuel tank shell strong frame is provided on the bottom of the methanol fuel tank shell, at least 4 modular support brackets are provided on the methanol fuel tank shell strong frame, the methanol fuel tank shell is supported on the deck platform by the modular support brackets, and the modular support brackets can limit the longitudinal, lateral and vertical movement of the methanol fuel tank shell.

[0006] Optionally, the methanol fuel tank shell strong frame includes a methanol fuel tank shell strong frame panel and a methanol fuel tank shell strong frame web, the module support support includes a module support support side panel and a module support support top plate, and a vertical elastic pad is provided on the module support support top plate, and the methanol fuel tank shell strong frame panel is in contact and connected with the module support support top plate through the vertical elastic pad.

[0007] Optionally, a limiting structure is provided on the strong frame panel of the methanol fuel tank shell, and the limiting structure is located around the side panels of the module support bracket. The limiting structure includes a limiting structure web and a limiting structure panel. The limiting structure panel includes an inner panel and an outer panel. The inner panel is close to the side panel of the module support bracket, and the limiting structure web is arranged between the inner panel and the outer panel. The bottom of the outer panel has an additional bottom of the limiting structure web, and the inner panel and the outer panel are respectively connected to the side panels of the module support bracket.

[0008] Optionally, the module support support includes a first module support support, and four limiting structures are symmetrically arranged around the first module support support in the longitudinal and transverse directions. The module support support side panels of the first module support support are connected to the inner panels of the limiting structure panel through horizontal elastic pads, which are used to limit the longitudinal and transverse movement of the methanol fuel tank shell, and are connected to the outer panels of the limiting structure panel through vertical limiting elbow plates, which are used to limit the vertical movement of the methanol fuel tank shell.

[0009] Optionally, the module support support includes a second module support support, and two limiting structures are symmetrically arranged around the second module support support along the longitudinal direction. The module support support side panels of the second module support support are connected to the inner panel of the limiting structure panel through horizontal elastic pads, which are used to limit the longitudinal movement of the methanol fuel tank shell, and are connected to the outer panel of the limiting structure panel through vertical limiting elbow plates, which are used to limit the vertical movement of the methanol fuel tank shell.

[0010] Optionally, the module support support includes a third module support support, and two limiting structures are symmetrically arranged around the third module support support along the transverse direction. The module support support side panels of the third module support support are connected to the inner panel of the limiting structure panel through horizontal elastic pads, which are used to limit the lateral movement of the methanol fuel tank shell, and are connected to the outer panel of the limiting structure panel through vertical limiting elbow plates, which are used to limit the vertical movement of the methanol fuel tank shell.

[0011] Optionally, the module support support includes a fourth module support support, and at least two limiting structures are evenly and symmetrically arranged around the fourth module support support. The module support support side panel of the fourth module support support is connected to the outer panel of the limiting structure panel through a vertical limiting elbow plate, which is used to limit the vertical movement of the methanol fuel tank shell.

[0012] Optionally, a transition elbow plate is provided on the strong frame web of the methanol fuel tank shell, and the transition elbow plate is aligned with the outer panel.

[0013] Optionally, the height of the module support base is 1000 mm to 1500 mm, the thickness of the module support base side panels 21 is 20 mm to 50 mm, and the thickness of the module support base top panel 22 is 30 mm to 70 mm.

[0014] Optionally, the interior of the methanol fuel tank shell is smooth and the exterior is provided with heat-insulating and fire-proof materials.

[0015] In summary, the present invention has at least one of the following beneficial effects:

[0016] 1. The present invention sets a modular support bracket at the bottom of the methanol fuel tank, so that the methanol fuel tank does not constitute a part of the hull structure and does not contribute to the overall longitudinal strength of the hull, forming an independent methanol fuel tank system. The methanol fuel tank can adopt a single-shell structure, effectively reducing the weight of the methanol fuel tank structure and saving shipyard construction costs.

[0017] 2. The methanol fuel tank of the present invention can be flexibly arranged under limited space, effectively expanding the capacity of the methanol fuel tank.

[0018] 3. The methanol fuel tank of the present invention does not require a double-layer protective shell, thus avoiding the creation of a narrow space and effectively improving the convenience of construction and subsequent maintenance and inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a side view of the independent methanol fuel tank of the present invention;

[0020] Figure 2 is a cross-sectional view of the independent methanol fuel tank of the present invention;

[0021] Figure 3 This is a diagram of the module support bracket of the independent methanol fuel tank of the present invention;

[0022] In the figure: 11. Methanol fuel tank shell; 12. Platform deck; 13. Methanol fuel tank shell strong frame; 14. Methanol fuel tank shell skeleton; 15. First module support bearing; 16. Second module support bearing; 17. Third module support bearing; 18. Fourth module support bearing; 21. Module support bearing side plate; 22. - Module support bearing top plate; 23. Vertical elastic pad; 24. Methanol fuel tank shell strong frame panel; 25. Limiting structure web; 26. Limiting structure panel; 27. Methanol fuel tank shell strong frame web; 28. Horizontal elastic pad; 29. ​​Transition bracket; 30. Vertical limiting bracket. DETAILED DESCRIPTION

[0023] The following combination Figure 1-3 The present invention is described in further detail.

[0024] The present invention discloses a ship independent methanol fuel tank, referring to Figure 1 and Figure 2, including a methanol fuel tank shell 11, the methanol fuel tank shell 11 is a single-shell structure, a methanol fuel tank shell frame 14 is provided on the outside of the methanol fuel tank shell 11, a methanol fuel tank shell strong frame 13 is provided at the bottom of the methanol fuel tank shell 11, and at least 4 module support supports are provided on the methanol fuel tank shell strong frame 13. The methanol fuel tank shell 11 is supported on the deck platform 12 through the module support supports. The module support supports can limit the longitudinal, lateral and vertical movement of the methanol fuel tank shell.

[0025] In a further embodiment, referring to Figure 3 The methanol fuel tank shell strong frame 13 includes a methanol fuel tank shell strong frame panel 24 and a methanol fuel tank shell strong frame web 27. The module support bracket includes a module support bracket side panel 21 and a module support bracket top plate 22. A vertical elastic pad 23 is provided on the module support bracket top plate 22. The height of the module support bracket is approximately 1000mm~1500mm, the thickness of the module support bracket side panel 21 is approximately 20mm~50mm, the thickness of the module support top plate 22 is approximately 30mm~70mm, the thickness of the vertical elastic pad 23 is 50mm~200mm, and the methanol fuel tank shell strong frame panel 24 is in contact with the module support bracket top plate 22 through the vertical elastic pad 23.

[0026] In a further embodiment, a limiting structure is provided on the strong frame panel 24 of the methanol fuel tank shell, and the limiting structure is located around the module support bracket side panel 21. The limiting structure includes a limiting structure web 25 and a limiting structure panel 26. The limiting structure web 25 is approximately 20mm to 70mm thick and the height is approximately 300mm to 600mm; the limiting structure panel 26 is approximately 20mm to 100mm thick and the width is approximately 400mm to 600mm. The limiting structure panel 26 includes an inner panel and an outer panel. The inner panel is close to the module support bracket side panel 21, the limiting structure web 25 is arranged between the inner panel and the outer panel, and the bottom of the outer panel is further than the bottom of the limiting structure web 25. The inner panel is connected to the module support bracket side panel 21 through a horizontal elastic pad 28, and the thickness of the horizontal elastic pad 28 is 50 to 200mm. The outer panel is connected to the module support bracket side panel 21 through a vertical limiting bracket 30, and the thickness of the vertical limiting bracket 30 is approximately 20mm to 100mm.

[0027] In a further embodiment, the module support support includes a first module support support 15, and four limiting structures are symmetrically arranged around the first module support support 15 in the longitudinal and transverse directions. The module support support side panel 21 of the first module support support 15 is connected to the inner panel of the limiting structure panel 26 through a horizontal elastic pad 28, which is used to limit the longitudinal and transverse movement of the methanol fuel tank shell 11, and is connected to the outer panel of the limiting structure panel 26 through a vertical limiting elbow plate 30, which is used to limit the vertical movement of the methanol fuel tank shell 11.

[0028] In a further embodiment, the module support support includes a second module support support 16, and two limiting structures are symmetrically arranged along the longitudinal direction around the second module support support 16. The module support support side panel 21 of the second module support support 16 is connected to the inner panel of the limiting structure panel 26 through a horizontal elastic pad 28, which is used to limit the longitudinal movement of the methanol fuel tank shell 11, and is connected to the outer panel of the limiting structure panel 26 through a vertical limiting elbow plate 30, which is used to limit the vertical movement of the methanol fuel tank shell 11.

[0029] In a further embodiment, the module support support includes a third module support support 17, and two limiting structures are symmetrically arranged around the third module support support 17 along the horizontal direction. The module support support side panel 21 of the third module support support 17 is connected to the inner panel of the limiting structure panel 26 through a horizontal elastic pad 28, which is used to limit the lateral movement of the methanol fuel tank shell 11, and is connected to the outer panel of the limiting structure panel 26 through a vertical limiting elbow plate 30, which is used to limit the vertical movement of the methanol fuel tank shell 11.

[0030] In a further embodiment, the module support support includes a fourth module support support 18, and at least two limiting structures are evenly and symmetrically arranged around the fourth module support support 18. The module support support side panel 21 of the fourth module support support 18 is connected to the outer panel of the limiting structure panel 26 through a vertical limiting elbow plate 30, which is used to limit the vertical movement of the methanol fuel tank shell 11.

[0031] In a further embodiment, a transition elbow plate 29 is provided on the strong frame web 27 of the methanol fuel tank shell. The transition elbow plate 29 is aligned with the outer panel. The thickness of the transition elbow plate 29 is about 20mm to 100mm. The interior of the methanol fuel tank shell 11 is smooth and the exterior is provided with heat-insulating and fire-proof materials.

[0032] The present invention arranges a module support bracket at the bottom of the methanol fuel tank shell 11. The methanol fuel tank does not constitute a part of the hull structure and thus does not participate in the overall longitudinal strength of the hull, forming an independent methanol fuel tank system. The methanol fuel tank can adopt a single-shell structure, which effectively reduces the weight of the methanol fuel tank structure and saves shipyard construction costs. In the case of limited space, it can be flexibly arranged to effectively expand the capacity of the methanol fuel tank; avoid the creation of a small space, and effectively improve the convenience of construction and subsequent maintenance and inspection.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A ship independent methanol fuel tank, characterized in that: The invention comprises a methanol fuel tank shell (11), wherein the methanol fuel tank shell (11) is a single shell structure, a methanol fuel tank shell frame (14) is provided on the outside of the methanol fuel tank shell (11), a methanol fuel tank shell strong frame (13) is provided on the bottom of the methanol fuel tank shell (11), and at least four module support supports are provided on the methanol fuel tank shell strong frame (13), and the methanol fuel tank shell (11) is supported on the deck platform (12) through the module support supports, and the module support supports can limit the longitudinal, transverse and vertical movement of the methanol fuel tank shell; The methanol fuel tank shell strong frame (13) includes a methanol fuel tank shell strong frame panel (24) and a methanol fuel tank shell strong frame web (27); the module support bracket includes a module support bracket side plate (21) and a module support bracket top plate (22); a vertical elastic pad (23) is provided on the module support bracket top plate (22); the methanol fuel tank shell strong frame panel (24) is in contact with and connected to the module support bracket top plate (22) via the vertical elastic pad (23); A limiting structure is provided on the strong frame panel (24) of the methanol fuel tank shell. The limiting structure is located around the module support support side panel (21). The limiting structure includes a limiting structure web (25) and a limiting structure panel (26). The limiting structure panel (26) includes an inner panel and an outer panel. The inner panel is close to the module support support side panel (21). The limiting structure web (25) is provided between the inner panel and the outer panel. The bottom of the outer panel extends beyond the bottom of the limiting structure web (25). The inner panel and the outer panel are respectively connected to the module support support side panel (21). The module support support comprises a first module support support (15), four limiting structures are symmetrically arranged around the first module support support (15) in the longitudinal and transverse directions, the module support support side plate (21) of the first module support support (15) is connected to the inner panel of the limiting structure panel (26) through a horizontal elastic pad (28), and is used to limit the longitudinal and transverse movement of the methanol fuel tank shell (11), and is connected to the outer panel of the limiting structure panel (26) through a vertical limiting bracket (30), and is used to limit the vertical movement of the methanol fuel tank shell (11).

2. The independent methanol fuel tank for ships according to claim 1, characterized in that: The module support support includes a second module support support (16), and two limiting structures are symmetrically arranged around the second module support support (16) along the longitudinal direction. The module support support side plate (21) of the second module support support (16) is connected to the inner panel of the limiting structure panel (26) through a horizontal elastic pad (28) to limit the longitudinal movement of the methanol fuel tank shell (11), and is connected to the outer panel of the limiting structure panel (26) through a vertical limiting bracket (30) to limit the vertical movement of the methanol fuel tank shell (11).

3. The independent methanol fuel tank for ships according to claim 1, characterized in that: The module support support includes a third module support support (17), and two limiting structures are symmetrically arranged around the third module support support (17) in the transverse direction. The module support support side plate (21) of the third module support support (17) is connected to the inner panel of the limiting structure panel (26) through a horizontal elastic pad (28) to limit the lateral movement of the methanol fuel tank shell (11), and is connected to the outer panel of the limiting structure panel (26) through a vertical limiting bracket (30) to limit the vertical movement of the methanol fuel tank shell (11).

4. The independent methanol fuel tank for ships according to claim 1, characterized in that: The module support support includes a fourth module support support (18), at least two limiting structures are evenly and symmetrically arranged around the fourth module support support (18), and the module support support side panel (21) of the fourth module support support (18) is connected to the outer panel of the limiting structure panel (26) through a vertical limiting bracket (30) for limiting the vertical movement of the methanol fuel tank shell (11).

5. The independent methanol fuel tank for ships according to claim 1, characterized in that: A transition bracket (29) is provided on the strong frame web (27) of the methanol fuel tank shell, and the transition bracket (29) is aligned with the outer panel.

6. The independent methanol fuel tank for ships according to claim 1, characterized in that: The height of the module support base is 1000 mm to 1500 mm, the thickness of the module support base side plate (21) is 20 mm to 50 mm, and the thickness of the module support base top plate (22) is 30 mm to 70 mm.

7. The independent methanol fuel tank for ships according to claim 1, characterized in that: The methanol fuel tank shell (11) is smooth inside and provided with heat-insulating and fire-proof materials outside.

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