Hull double-layer bottom structure and mounting method thereof

Abstract

The invention belongs to the technical field of ship body structures, and discloses a ship body double-layer bottom structure and an installation method thereof, in the installation process of the ship body double-layer bottom structure, when a worker assembles an inner bottom plate body, a ship outer plate, a solid rib plate and a rib, installation of a slow-installation cover plate can be delayed, and when the structure is assembled, installation of the slow-installation cover plate is facilitated. In addition, after installation of the inner bottom plate body, the ship outer plate, the solid rib plate and the ribs is completed, a worker can also firstly install other equipment in the bilge of the ship body, due to the fact that the slow installation cover plate is not installed yet, the large operation space is achieved at the moment, and after installation of the structure is completed, the worker can conveniently install the inner bottom plate body, the ship outer plate, the solid rib plate and the ribs. The buffer cover plate is installed in the containing groove and fixedly connected with the ship outer plate, the groove wall of the containing groove, the solid rib plate and the ribs at the same time, due to the fact that the surface of the buffer cover plate is flush with the surface of the inner bottom plate body, the space above the inner bottom plate cannot be occupied, and more installation space can be reserved for a liquid tank or cabin equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of hull structures, in particular to a hull double bottom structure and an installation method thereof. Background Art

[0002] There are local narrow spaces in the bilge area of ​​the double bottom of the ship, which cannot be constructed normally using conventional methods.

[0003] Currently, to address this issue, related technologies typically design the inner bottom plate in a stepped shape, with the portion of the inner bottom plate near the bilge protruding upward. This creates a larger construction space between the inner bottom plate and the ship's outer plating in the bilge area. However, this design has the problem of reducing the space above the inner bottom plate, thereby reducing the space occupied by the liquid tank above the inner bottom plate. Furthermore, in the engine room area, this design also results in insufficient height for the cabin equipment, affecting the overall layout of the cabin. Summary of the Invention

[0004] According to one aspect of the present invention, the present invention provides a double bottom structure of a hull to solve the problem in the prior art that there is a local narrow space in the bilge area of ​​the double bottom of a ship, which cannot be normally constructed by conventional methods without affecting the space above the inner bottom plate.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] The double bottom structure of the hull includes:

[0007] The inner bottom plate comprises an inner bottom plate body and a slow-installation cover plate, wherein the inner bottom plate body has a receiving groove;

[0008] The outer plate of the ship, along the width direction of the ship, the receiving groove is arranged opposite to the outer plate of the ship;

[0009] a solid rib, welded to the outer plate, the solid rib being located below the inner bottom plate body;

[0010] a rib mounted on the bilge of the outer plate, wherein the rib is located on one side of the inner bottom plate body along the width direction of the ship;

[0011] The slow-installation cover plate can be installed in the receiving groove and is fixedly connected to the outer plate, the groove wall of the receiving groove, the solid rib plate and the ribs at the same time, and the surface of the slow-installation cover plate is flush with the surface of the inner bottom plate body.

[0012] As a preferred solution for the double bottom structure of the hull, a corner steel pad is provided between the solid ribs and the ribs, the lower surface of the corner steel pad is welded to the solid ribs, and the buffer cover plate can be placed above the corner steel pad and welded to the corner steel pad.

[0013] As a preferred solution for the double bottom structure of the hull, the slow-installation cover plate is provided with a plug welding hole, and the hole wall of the plug welding hole can be welded to the corner steel liner.

[0014] As a preferred solution for the double-bottom structure of the hull, the lower surface of the rib is in contact with the corner steel pad, the slow-installation cover plate is provided with an installation groove, the rib can be inserted into the installation groove, and the groove wall of the installation groove can be welded to the rib and the corner steel pad at the same time.

[0015] As a preferred solution for the double bottom structure of the hull, a butt joint steel liner is further included, and the outer periphery of the slow-installation cover plate and the groove wall of the accommodating groove can be fixedly connected to the butt joint steel liner.

[0016] As a preferred solution for the double bottom structure of the hull, a side girder is fixedly connected below the inner bottom plate body, and the side girder is fixedly connected to the outer plate.

[0017] As a preferred solution for the double bottom structure of the hull, a plurality of the solid ribs and the ribs are provided, the plurality of the solid ribs are arranged in one-to-one correspondence with the plurality of the ribs, and the plurality of the solid ribs are arranged at intervals along the length direction of the ship.

[0018] As a preferred solution for the double bottom structure of the hull, a gap is provided between the side of the slow-installation cover plate close to the outer plate and the outer plate.

[0019] As a preferred solution for the double bottom structure of the hull, the side wall of the slow-installed cover plate close to the outer plate is a welding surface, and the welding surface forms an angle β with the height direction of the ship, 15°≤β≤30°.

[0020] According to another aspect of the present invention, a method for installing a double bottom structure of a hull is provided, for assembling the above-mentioned double bottom structure of the hull; the method for installing the double bottom structure of the hull comprises:

[0021] S100: The inner bottom plate body is fixedly mounted on the outer plate, with the receiving groove facing the outer plate along the width direction of the ship;

[0022] S200: Installing the solid floor and the ribs on the outer plate; wherein the solid floor is located below the inner bottom plate body, and the ribs are located on one side of the inner bottom plate body along the ship width direction;

[0023] S300: Installing the slow-installation cover plate on the receiving tank, and simultaneously fixing the slow-installation cover plate to the outer plate, the tank wall of the receiving tank, the solid ribs and the ribs.

[0024] The beneficial effects of the present invention are:

[0025] The present invention provides a double bottom structure of a hull, comprising an inner bottom plate, an outer plate, a solid rib plate and ribs, wherein the inner bottom plate comprises an inner bottom plate body and a slow-installation cover plate, and the inner bottom plate body has a receiving groove; along the width direction of the ship, the receiving groove is arranged opposite to the outer plate; the solid rib plate is welded to the outer plate, and the solid rib plate is located below the inner bottom plate body; the ribs are installed at the bilge of the outer plate, and along the width direction, the ribs are located on one side of the inner bottom plate body; the slow-installation cover plate can be installed in the receiving groove and is fixedly connected to the outer plate, the groove wall of the receiving groove, the solid rib plate and the ribs at the same time, and the surface of the slow-installation cover plate is flush with the surface of the inner bottom plate body, and workers can operate the double bottom structure. When assembling the inner bottom plate body, outer plate, solid ribs and ribs, the staff can temporarily postpone the installation of the slow-installation cover plate. When assembling the above structure, a larger working space can be formed at the receiving groove. In addition, after completing the installation of the inner bottom plate body, outer plate, solid ribs and ribs, the staff can also install other equipment on the bilge of the hull first. Since the slow-installation cover plate has not been installed yet, there is also a larger working space at this time. After completing the installation of the above structure, the slow-installation cover plate will be installed in the receiving groove and fixedly connected to the outer plate, the groove wall of the receiving groove, the solid ribs and ribs at the same time. In addition, since the surface of the slow-installation cover plate is flush with the surface of the inner bottom plate body, it will not occupy the space above the inner bottom plate, thereby reserving more installation space for liquid tanks or engine room equipment.

[0026] The present invention also provides a method for installing a double-bottom structure of a hull, which is used to assemble the above-mentioned double-bottom structure of the hull. In the method for installing the double-bottom structure of the hull, the inner bottom plate body is fixedly installed on the outer plate, and the receiving groove is arranged opposite the outer plate in the direction of the ship width. Subsequently, solid ribs and ribs are installed on the outer plate; wherein the solid ribs are located below the inner bottom plate body, and the ribs are located on one side of the inner bottom plate body in the direction of the ship width. At this time, since the slow-installation cover plate has not yet been installed, a larger working space can be formed at the receiving groove when assembling the above-mentioned structure. In addition, after completing the installation of the inner bottom plate body, the outer plate, the solid ribs and the ribs, the staff can also first install other equipment on the bilge of the hull, and at this time there is also a larger working space. Finally, the slow-installation cover plate is installed in the receiving groove, and the slow-installation cover plate is fixedly connected to the outer plate, the groove wall of the receiving groove, the solid ribs and the ribs at the same time. In addition, since the surface of the slow-install cover is flush with the surface of the inner bottom plate body, it will not occupy the space above the inner bottom plate, thereby reserving more installation space for liquid tanks or cabin equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 1 is a schematic structural diagram of a double bottom structure of a hull according to an embodiment of the present invention (from a top view);

[0028] Figure 2 yes Figure 1 Cross-sectional view of the AA section (front view);

[0029] Figure 3 2 is a schematic structural diagram of a slow-installation cover plate according to an embodiment of the present invention (from a top view);

[0030] Figure 4 yes Figure 2 Cross-sectional view of the middle BB section (side view);

[0031] Figure 5 yes Figure 2 Schematic diagram of the structure of the part indicated by arrow C (front view);

[0032] Figure 6 yes Figure 2 Schematic diagram of the structure of the part indicated by the arrow D (front view);

[0033] Figure 7 It is a flow chart of a method for installing a double bottom structure of a hull according to an embodiment of the present invention.

[0034] In the picture:

[0035] 1. Inner bottom plate; 11. Inner bottom plate body; 111. Accommodation groove; 12. Slow-install cover plate; 121. Plug welding hole; 122. Mounting groove;

[0036] 2. Outer board;

[0037] 3. Solid ribs;

[0038] 4. Ribs;

[0039] 5. Side girder;

[0040] 6. Angle steel liner;

[0041] 7. Butt steel liner. DETAILED DESCRIPTION

[0042] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0043] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0044] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0045] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0046] The bilge area of ​​a ship's double bottom has a narrow local space that cannot be constructed normally using conventional methods. Currently, to address this problem, related technologies usually set the inner bottom plate in a stepped shape, with the portion of the inner bottom plate near the bilge protruding upward, thereby creating a larger construction space between the inner bottom plate and the ship's outer plate in the bilge area. However, there is a problem that the upward protrusion of the portion of the inner bottom plate near the bilge will result in a reduction in the space above the inner bottom plate, resulting in a reduction in the space occupied by the liquid tank above the inner bottom plate. In addition, if it is in the engine room area, such a setting will also result in insufficient height for the layout of the cabin equipment, affecting the overall layout of the cabin.

[0047] In this regard, this embodiment provides a double-bottom structure for a hull to solve the problem in the prior art that there is a local narrow space in the bilge area of ​​the double-bottom ship, which cannot be normally constructed by conventional methods, and does not affect the space above the inner bottom plate. It can be used in the field of hull structure technology.

[0048] Reference Figures 1-6The double bottom structure of the hull includes an inner bottom plate 1, an outer plate 2, a solid rib 3 and a rib 4. The inner bottom plate 1 includes an inner bottom plate body 11 and a slow-installation cover plate 12. The inner bottom plate body 11 has a receiving groove 111; along the width direction of the ship, the receiving groove 111 is arranged opposite to the outer plate 2; the solid rib 3 is welded to the outer plate 2, and the solid rib 3 is located below the inner bottom plate body 11; the rib 4 is installed at the bilge of the outer plate 2, and along the width direction of the ship, the rib 4 is located on one side of the inner bottom plate body 11; the slow-installation cover plate 12 can be installed in the receiving groove 111, and at the same time fixedly connected to the outer plate 2, the groove wall of the receiving groove 111, the solid rib 3 and the rib 4, and the surface of the slow-installation cover plate 12 is flush with the surface of the inner bottom plate body 11 When the staff assembles the inner bottom plate body 11, the outer plate 2, the solid ribs 3 and the ribs 4, they can temporarily postpone the installation of the slow-installation cover plate 12. When the above structure is assembled, a larger working space can be formed at the receiving groove 111. In addition, after completing the installation of the inner bottom plate body 11, the outer plate 2, the solid ribs 3 and the ribs 4, the staff can also install other equipment on the bilge of the hull first. Since the slow-installation cover plate 12 has not been installed yet, there is also a larger working space at this time. After completing the installation of the above structure, the slow-installation cover plate 12 is installed in the receiving groove 111 and fixedly connected to the outer plate 2, the groove wall of the receiving groove 111, the solid ribs 3 and the ribs 4 at the same time. In addition, since the surface of the slow-installation cover plate 12 is flush with the surface of the inner bottom plate body 11, it will not occupy the space above the inner bottom plate, thereby reserving more installation space for liquid tanks or engine room equipment. In this embodiment, the upper and lower surfaces of the slow-install cover plate 12 are flush with the inner bottom plate body 11, that is, the upper surface of the slow-install cover plate 12 is flush with the upper surface of the inner bottom plate body 11, and the lower surface of the slow-install cover plate 12 is flush with the lower surface of the inner bottom plate body 11.

[0049] Continue to refer to Figures 1-6 A corner steel pad 6 is provided between the solid rib 3 and the rib 4. The lower surface of the corner steel pad 6 is welded to the solid rib 3. The slow-installation cover plate 12 can be placed above the corner steel pad 6 and welded to the corner steel pad 6. Therefore, when installing the slow-installation cover plate 12, the slow-installation cover plate 12 can be placed above the corner steel pad 6 first, and then the slow-installation cover plate 12 is welded to the corner steel pad 6, which is convenient for the installation of the replacement cover plate 12. At the same time, the slow-installation cover plate 12 is fixedly connected to the solid rib 3 through the corner steel pad 6.

[0050] Furthermore, in order to facilitate welding between the slow-installation cover plate 12 and the corner steel liner 6, the slow-installation cover plate 12 is provided with a plug welding hole 121, which is used to accommodate solder so that the hole wall of the plug welding hole 121 can be welded to the corner steel liner 6.

[0051] Continue to refer to Figures 1-6The lower surface of the rib 4 abuts against the corner steel liner 6, and the slow-installation cover plate 12 is provided with a mounting groove 122. The rib 4 can be inserted into the mounting groove 122. The groove wall of the mounting groove 122 can be welded to the rib 4 and the corner steel liner 6 at the same time. Therefore, when the slow-installation cover plate 12 is welded to the corner steel liner 6, the slow-installation cover plate 12 is also welded to the rib 4. Optionally, a plurality of plug welding holes 121 are provided, and the plurality of plug welding holes 121 are all arranged in the extension direction of the mounting groove 122, thereby increasing the stability of the connection between the slow-installation cover plate 12 and the corner steel liner 6.

[0052] In this embodiment, the mounting groove 122 has two sidewalls, and both sidewalls are angled with the height direction of the vessel to facilitate welding. The angle is α, and 30°≤α≤60°. Specifically, it can be 30°, 31°, 32°, 33°, 34°, 35°, 36°, 37°, 38°, 39°, 40°, 41°, 42°, 43°, 44°, 45°, 46°, 47°, 48°, 49°, 50°, 51°, 52°, 53°, 54°, 55°, 56°, 57°, 58°, 59°, or 60°. In this embodiment, it is specifically 45°.

[0053] Optionally, there is a certain gap between the rib 4 and the two mounting groove side walls of the mounting groove 122. On the one hand, the gap between the rib 4 and the two mounting groove side walls of the mounting groove 122 is used to accommodate solder. On the other hand, a certain processing error is allowed between the rib 4 and the mounting groove 122. The position of the slow-install cover 12 can be fine-tuned according to actual conditions. The range of the above gap is 4mm to 8mm, specifically 4mm, 5mm, 6mm, 7mm or 8mm, and specifically 6mm in this embodiment.

[0054] Continue to refer to Figures 1-6 The double bottom structure of the hull also includes a butt-jointed steel liner 7. The outer periphery of the slow-loading cover plate 12 and the groove wall of the receiving groove 111 can be fixedly connected to the butt-jointed steel liner 7, specifically by welding in this embodiment. With such an arrangement, the outer periphery of the slow-loading cover plate 12 can be connected to the groove wall of the receiving groove 111 through the butt-jointed steel liner 7. Specifically, a groove is formed between the three, and the groove is used to accommodate solder. In addition, such an arrangement also allows a certain processing error between the inner bottom plate body 11 and the slow-loading cover plate 12, and the position of the slow-loading cover plate 12 can be fine-tuned according to actual conditions. During assembly, the inner bottom plate body 11 can be welded to the butt-jointed steel liner 7 first. Subsequently, when installing the slow-loading cover plate 12, the slow-loading cover plate 12 can be placed on the butt-jointed steel liner 7 first. At this time, the slow-loading cover plate 12 is supported by the corner steel liner 6 and the butt steel liner 7 at the same time, and the installation is stable. Then, the slow-loading cover plate 12 is welded to the corner steel liner 6 and the butt steel liner 7 to complete the installation of the slow-loading cover plate 12.

[0055] Continue to refer to Figures 1-6 There is a gap between the side of the slow-installation cover plate 12 close to the outer plate 2 and the outer plate 2, so as to allow a certain processing error between the inner bottom plate body 11, the slow-installation cover plate 12 and the outer plate 2, and the position of the slow-installation cover plate 12 can be fine-tuned according to actual conditions. Among them, along the width of the ship, the shortest distance of the gap is L, 0<L≤4mm, specifically 0.2mm, 0.4mm, 0.6mm, 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2.0mm, 2.2mm, 2.4mm, 2.6mm, 2.8mm, 3.0mm, 3.2mm, 3.4mm, 3.6mm, 3.8mm or 4.0mm. In this embodiment, the specific value can be between 0 and 2mm.

[0056] Continue to refer to Figures 1-6 The sidewall of the slow-install cover plate 12 adjacent to the outer plate 2 is a welding surface. The welding surface forms an angle with the height of the ship, thereby facilitating welding between the welding surface and the outer plate 2. The angle β is 15°≤β≤30°, and can specifically be 15°, 16°, 17°, 18°, 19°, 20°, 21°, 22°, 23°, 24°, 25°, 26°, 27°, 28°, 29°, or 30°. In this embodiment, it is specifically 20°.

[0057] As mentioned above, the slow-installation cover plate 12 can be installed in the accommodating groove 111, and at the same time fixedly connected to the outer plate 2, the groove wall of the accommodating groove 111, the solid rib 3 and the rib 4. Specifically, the slow-installation cover plate 12 is directly welded to the outer plate 2; a groove is formed between the slow-installation cover plate 12, the groove wall of the accommodating groove 111 and the docking steel pad 7, and the groove is used to accommodate solder so that the three are welded; the hole wall of the plug welding hole 121 is welded to the corner steel pad 6, and the corner steel pad 6 is welded to the solid rib 3, so that the slow-installation cover plate 12 is fixedly connected to the solid rib 3; the groove wall of the installation groove 122 is welded to the rib 4 and the corner steel pad 6 at the same time, so that the slow-installation cover plate 12 is welded to the rib 4.

[0058] Continue to refer to Figures 1-6 A side girder 5 is fixedly connected to the bottom of the inner bottom plate body 11, and the two are fixedly connected by welding. The side girder 5 is fixedly connected to the outer plate 2, so that before the slow-installation cover plate 12 is installed, the inner bottom plate body 11 can be stably installed on the outer plate 2 through the side girder 5, wherein the side girder 5 extends along the length of the ship.

[0059] Continue to refer to Figures 1-6There are multiple solid ribs 3 and ribs 4, and the multiple solid ribs 3 are arranged in a one-to-one correspondence with the multiple ribs 4. The multiple solid ribs 3 are arranged at intervals along the length of the ship, so that the slow-installed cover plate 12 is connected to the multiple solid ribs 3 and the multiple ribs 4, making the overall structure of the double bottom structure of the hull more stable.

[0060] Example 2

[0061] This embodiment provides a method for installing a double bottom structure of a hull, which is used to assemble the double bottom structure of the hull in the above embodiments.

[0062] Reference Figure 7 , the hull double bottom structure installation method includes the following steps.

[0063] S100: The inner bottom plate body 11 is fixedly mounted on the outer plate 2, and the receiving groove 111 is arranged facing the outer plate 2 along the width direction of the ship.

[0064] Specifically, the side girder 5 is first welded to the outer plate 2 , and then the inner bottom plate body 11 is welded to the side girder 5 , so that the inner bottom plate body 11 is fixedly mounted to the outer plate 2 .

[0065] S200: Installing the solid floor 3 and the ribs 4 on the outer plate 2. The solid floor 3 is located below the inner bottom plate body 11, and the ribs 4 are located on one side of the inner bottom plate body 11 along the ship width direction.

[0066] At this time, since the slow-install cover plate 12 has not been installed yet, a larger working space can be formed at the accommodating groove 111 when assembling the above-mentioned structure. In addition, after completing the installation of the inner bottom plate body 11, the outer plate 2, the solid rib plate 3 and the rib 4, the staff can also install other equipment on the bilge of the hull first, and there is also a larger working space at this time.

[0067] After the installation of the solid ribs 3 and ribs 4 is completed, the corner steel pads 6 and the butt steel pads 7 can be installed. The lower surface of the corner steel pads 6 is welded to the solid ribs 3 , and the inner bottom plate body 11 is welded to the butt steel pads 7 .

[0068] S300: Install the slow-installation cover plate 12 in the receiving groove 111, and fix the slow-installation cover plate 12 to the outer plate 2, the groove wall of the receiving groove 111, the solid rib 3 and the rib 4 at the same time.

[0069] After placing the slow-installation cover plate 12 in the receiving groove 111, the slow-installation cover plate 12 is placed on top of the corner steel pad 6 and the butt steel pad 7 at the same time, and the slow-installation cover plate 12 is supported by the corner steel pad 6 and the butt steel pad 7. Subsequently, the position of the slow-installation cover plate 12 is adjusted, and the slow-installation cover plate 12 is directly welded to the outer plate 2. The slow-installation cover plate 12, the groove wall of the receiving groove 111 and the butt steel pad 7 are welded to the slow-installation cover plate 12, the groove wall of the receiving groove 111 and the butt steel pad 7 through the groove formed between the slow-installation cover plate 12, the groove wall of the receiving groove 111 and the butt steel pad 7, the hole wall of the plug welding hole 121 is welded to the corner steel pad 6, and the groove wall of the installation groove 122 is welded to the rib 4 and the corner steel pad 6 at the same time, so that the slow-installation cover plate 12 is fixedly connected to the outer plate 2, the groove wall of the receiving groove 111, the solid rib 3 and the rib 4 at the same time to complete the installation of the slow-installation cover plate 12.

[0070] After the slow-installation cover plate 12 is installed, since the surface of the slow-installation cover plate 12 is flush with the surface of the inner bottom plate body 11, it will not occupy the space above the inner bottom plate, thereby reserving more installation space for liquid tanks or cabin equipment.

[0071] In the method for installing a double bottom structure of a hull provided in this embodiment, an inner bottom plate body 11 is fixedly mounted to an outer plate 2, with a receiving groove 111 disposed directly opposite the outer plate 2 along the ship's width. Subsequently, solid ribs 3 and ribs 4 are installed on the outer plate 2; the solid ribs 3 are located below the inner bottom plate body 11, and the ribs 4 are located to one side of the inner bottom plate body 11 along the ship's width. At this point, since the slow-install cover plate 12 has not yet been installed, a larger working space is created at the receiving groove 111 during assembly of the structure. Furthermore, after completing the installation of the inner bottom plate body 11, outer plate 2, solid ribs 3, and ribs 4, workers can proceed with the installation of other equipment on the bilge, also providing a larger working space. Finally, the slow-install cover plate 12 is installed in the receiving groove 111 and fixedly connected to the outer plate 2, the wall of the receiving groove 111, the solid ribs 3, and the ribs 4. In addition, since the surface of the slow-install cover plate 12 is flush with the surface of the inner bottom plate body 11, it will not occupy the space above the inner bottom plate, thereby reserving more installation space for liquid tanks or cabin equipment.

[0072] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. The double bottom structure of the hull is characterized by: include: The inner bottom plate (1) comprises an inner bottom plate body (11) and a slow-installation cover plate (12), wherein the inner bottom plate body (11) has a receiving groove (111); The outer plate (2) is provided with the receiving groove (111) facing the outer plate (2) along the width direction of the ship; A solid rib (3) is welded to the outer plate (2), and the solid rib (3) is located below the inner bottom plate body (11); A rib (4) is mounted on the bilge of the outer plate (2), and along the width direction of the ship, the rib (4) is located on one side of the inner bottom plate body (11); The slow-installation cover plate (12) can be installed in the receiving groove (111) and is fixedly connected to the outer plate (2), the groove wall of the receiving groove (111), the solid rib (3) and the rib (4) at the same time, and the surface of the slow-installation cover plate (12) is flush with the surface of the inner bottom plate body (11).

2. The double bottom structure of a ship according to claim 1, characterized in that: A corner steel liner (6) is provided between the solid rib (3) and the rib (4), the lower surface of the corner steel liner (6) is welded to the solid rib (3), and the slow-install cover plate (12) can be placed above the corner steel liner (6) and welded to the corner steel liner (6).

3. The double bottom structure of a ship according to claim 2, characterized in that: The slow-installation cover plate (12) is provided with a plug welding hole (121), and the hole wall of the plug welding hole (121) can be welded to the corner steel liner (6).

4. The double bottom structure of a ship according to claim 2, characterized in that: The lower surface of the rib (4) abuts against the corner steel liner (6); the slow-installation cover plate (12) is provided with a mounting groove (122); the rib (4) can be inserted into the mounting groove (122); and the groove wall of the mounting groove (122) can be welded to the rib (4) and the corner steel liner (6) at the same time.

5. The double bottom structure of a ship according to claim 1, characterized in that: It also includes a butt-jointed steel liner (7), and the outer periphery of the slow-installation cover plate (12) and the groove wall of the accommodating groove (111) can be fixedly connected to the butt-jointed steel liner (7).

6. The double bottom structure of a ship according to any one of claims 1 to 5, characterized in that: A side girder (5) is fixedly connected below the inner bottom plate body (11), and the side girder (5) is fixedly connected to the outer plate (2).

7. The double bottom structure of a ship according to any one of claims 1 to 5, characterized in that: A plurality of the solid ribs (3) and the ribs (4) are provided, and the plurality of solid ribs (3) and the plurality of ribs (4) are provided in a one-to-one correspondence, and the plurality of solid ribs (3) are provided at intervals along the length direction of the ship.

8. The double bottom structure of a ship according to any one of claims 1 to 5, characterized in that: A gap is formed between the side of the slow-installation cover plate (12) close to the outer plate (2) and the outer plate (2).

9. The double bottom structure of a ship according to any one of claims 1 to 5, characterized in that: The side wall of the slow-install cover plate (12) close to the outer plate (2) is a welding surface, and the welding surface forms an angle β with the height direction of the ship, and the angle is 15°≤β≤30°.

10. A method for installing a double bottom structure of a ship, characterized in that: Used for assembling the double bottom structure of a hull according to any one of claims 1 to 9; the installation method of the double bottom structure of a hull comprises: S100: The inner bottom plate body (11) is fixedly mounted on the outer plate (2), and the receiving groove (111) is arranged facing the outer plate (2) along the width direction of the ship; S200: Installing the solid floor (3) and the rib (4) on the outer plate (2); wherein the solid floor (3) is located below the inner bottom plate body (11), and along the width direction of the ship, the rib (4) is located on one side of the inner bottom plate body (11); S300: Install the slow-install cover plate (12) on the receiving groove (111), and simultaneously fix the slow-install cover plate (12) to the outer plate (2), the groove wall of the receiving groove (111), the solid rib (3) and the rib (4).

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