Liquid cargo tank of chemical tanker
By designing multiple storage spaces and convex structures with different volumes in the cargo tank of the chemical ship, the problems of low utilization rate of the cargo tank and complex ship control are solved, and a larger loading capacity and stability are achieved, avoiding the use of ballast water.
Patent Information
- Application Number
- CN202421796315.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The cargo tank utilization rate of chemical ships is low, and the overall control of the ship is complex, making it difficult to maintain the consistency of the center of gravity and floating center in the direction of the ship. It is usually necessary to load ballast water to adjust the floating state.
A cargo tank structure is designed, including an outer shell and an inner shell. A gap is provided between the inner shell and the shell. The inner shell is surrounded by the top wall, the bottom wall, the side wall and the front and rear walls to form multiple accommodation spaces with different volumes. A bent section is provided at the connection between the side wall and the front and rear walls. A convex rib is arranged on the bent section, and the convex ribs are arranged toward the outside of the inner shell, which is adapted to the requirements of ship-type lines and anti-pollution isolation capsules, adjust the direction and position of the convex ribs, and improve the volume utilization rate.
The loading capacity of the cargo tank is increased, the impact on other parts of the ship is reduced, and the consistency of the center of gravity and floating center position is achieved, without the need to load ballast water, which improves loading convenience and overall stability.
Smart Images
Figure CN223132307U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of liquid cargo tanks for special ships, and in particular to a liquid cargo tank for a chemical ship. Background Art
[0002] The information provided in this section is for the purpose of generally presenting the background of the present disclosure. To the extent described in this section, the work of the presently named inventors and aspects of the description that may not constitute prior art at the time of filing are neither explicitly nor implicitly admitted to be prior art to the present disclosure.
[0003] The layout design of the liquid cargo tanks of chemical tankers usually designs the lengths of multiple cargo holds in the length direction to be consistent, and the top of the cargo hold is designed to be flat. Due to the loading characteristics of chemicals, the volume of the liquid cargo tanks is limited, the utilization efficiency is low, and when the interval cargo holds are loaded with special dangerous goods, it is difficult to ensure that the center of gravity and the center of buoyancy of the ship are at the same position in the length direction. It is usually necessary to adjust the buoyancy of the ship by loading ballast water. Utility Model Content
[0004] In view of the defects existing in the prior art, the present application provides a liquid cargo tank of a chemical tanker to solve the problems of low utilization rate of the liquid cargo tank and complex overall control of the ship in the prior art.
[0005] The above-mentioned purpose of the present application is mainly achieved through the following technical solutions:
[0006] A liquid cargo tank of a chemical tanker, the liquid cargo tank comprising:
[0007] A shell, wherein a first cavity is provided in the shell;
[0008] An inner shell, wherein the inner shell is arranged on the inner side of the first cavity and has a first gap with the outer shell, the inner shell comprises a top wall and a bottom wall arranged oppositely, two side walls arranged oppositely, and a front wall and a rear wall arranged oppositely, and the top wall, the bottom wall, the side walls, the front wall and the rear wall are enclosed to form a liquid cargo tank, wherein a plurality of accommodating spaces with different volumes are separated and arranged in the liquid cargo tank, a first bending section is respectively provided at the top edge and the bottom edge of the side wall, a plurality of second bending sections are respectively provided at the end portions of the side wall connecting the front wall and the rear wall, and the plurality of second bending sections are sequentially arranged along the direction from the front wall to the rear wall, and a plurality of convex ridges facing the outside of the inner shell are respectively provided on each of the first bending section and the second bending section.
[0009] In an optional embodiment, the thickness of the second bending section is the same as the thickness of the side wall.
[0010] In an optional embodiment, inclined surfaces are arranged obliquely on both sides of each convex ridge.
[0011] In an alternative embodiment, the convex ribs extend in a straight line direction.
[0012] In an alternative embodiment, the projection of the side wall on the symmetry plane in the length direction of the liquid cargo tank is arranged in a rectangle.
[0013] In an alternative embodiment, the projection of each second bent section on the symmetry plane in the length direction of the liquid cargo tank is arranged in a rectangle.
[0014] In an alternative embodiment, the side wall is a trough-shaped bulkhead.
[0015] In an alternative embodiment, the width of the side wall is an integer multiple of the ship's frame space.
[0016] In an alternative embodiment, the first bent section located at the top edge of the side wall is used to extend above the deck so that the top wall is arranged higher than the deck.
[0017] In an alternative embodiment, the top wall is at least 2.4 meters higher than the deck.
[0018] Compared with the prior art, the advantages of the present application are as follows:
[0019] The liquid cargo tank in the present application includes an outer shell and an inner shell. A first cavity is provided inside the outer shell. The inner shell is arranged inside the first cavity and there is a first gap between the inner shell and the outer shell. The inner shell includes a top wall and a bottom wall arranged oppositely, two side walls arranged oppositely, and a front wall and a rear wall arranged oppositely. The top wall, the bottom wall, the side walls, the front wall and the rear wall enclose to form a liquid cargo tank. A plurality of accommodation spaces with different volumes are separated and arranged in the liquid cargo tank. First bent sections are respectively provided at the top edge and the bottom edge of the side wall. A plurality of second bent sections are respectively provided at the end parts of the side wall connecting the front wall and the rear wall. The plurality of second bent sections are arranged in sequence along the direction from the front wall to the rear wall. A plurality of convex ribs are respectively provided on each first bent section and each second bent section and face the outside of the inner shell. The arrangement of the plurality of convex ribs on the plurality of second bent sections enables the liquid cargo tank where the second bent section is located to obtain a larger-volume accommodation space, reduces the impact on other parts of the ship while increasing the loading capacity, and can adaptively adjust the arrangement direction and position of the convex ribs according to the external hull line of the ship and the width requirement of the anti-pollution isolation empty tank, further improving the volume of the liquid cargo tank. By arranging accommodation spaces with different volumes in the liquid cargo tank and loading with spaced accommodation spaces, the loading volume is as large as possible when loading in the spaced cargo tank, and the positions of the center of gravity and the center of buoyancy are the same, without loading ballast water, improving the convenience. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.
[0021] Figure 1 It is the top view of the liquid cargo tank provided by the embodiment of the present application;
[0022] Figure 2 It is the partial cross-sectional view of the liquid cargo tank provided by the embodiment of the present application;
[0023] Figure 3 It is the cross-sectional view of the inner shell provided by the embodiment of the present application;
[0024] Figure 4 It is the structural schematic diagram of the inner shell provided by the embodiment of the present application;
[0025] In the figure: 100, outer shell; 101, first gap; 200, inner shell; 201, top wall; 202, bottom wall; 203, front wall; 204, rear wall; 205, side wall; 300, accommodation space; 401, first bending section; 402, second bending section; 403, convex rib; 404, inclined surface. Detailed implementation manners
[0026] The following further elaborates on the present utility model in conjunction with the accompanying drawings and specific embodiments. It should be noted here that the description of these embodiments is used to help understand the present utility model, but does not constitute a limitation on the present utility model. The specific structural and functional details disclosed herein are only used to describe the exemplary embodiments of the present utility model. However, the present utility model can be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.
[0027] As Figure 1 shown, Figure 1 It is the top view of the liquid cargo tank provided by the embodiment of the present application. A liquid cargo tank of a chemical tanker, the liquid cargo tank includes an outer shell 100 and an inner shell 200, wherein:
[0028] A first cavity is provided inside the outer shell 100.
[0029] The inner shell 200 is arranged inside the first cavity, and there is a first gap 101 between the inner shell 200 and the outer shell 100. The inner shell 200 includes a top wall 201 and a bottom wall 202 arranged opposite to each other, two side walls 205 arranged opposite to each other, and a front wall 203 and a rear wall 204 arranged opposite to each other. The top wall 201, the bottom wall 202, the side walls 205, the front wall 203 and the rear wall 204 enclose a liquid cargo tank. A plurality of accommodating spaces 300 with different volumes are separately arranged in the liquid cargo tank. The accommodating spaces 300 with different volumes form a plurality of relatively independent liquid cargo tank spaces, and can be adaptively arranged at intervals according to a set volume ratio during loading to maintain the overall stability of the hull.
[0030] As Figure 2 , Figure 3 shown, Figure 2 is a partial cross-sectional view of the liquid cargo tank provided by the embodiment of the present application. Figure 3 is a cross-sectional view of the inner shell 200 provided by the embodiment of the present application. At the top edge and the bottom edge of the side wall 205, there are respectively provided first bending segments 401. At the end parts where the side wall 205 connects the front wall 203 and the rear wall 204, there are respectively provided a plurality of second bending segments 402. The plurality of second bending segments 402 are arranged in sequence along the direction from the front wall 203 to the rear wall 204. On each of the first bending segments 401 and the second bending segments 402, there are respectively provided a plurality of ridges 403 facing the outside of the inner shell 200.
[0031] As Figure 2 , Figure 3 and Figure 4 shown, Figure 4Schematic diagram of the structure of the inner shell 200 provided by the embodiments of the present application. In an alternative embodiment, the working principle of the liquid cargo tank in the present application is as follows: The liquid cargo tank includes an outer shell 100 and an inner shell 200. A first cavity is provided inside the outer shell 100. The inner shell 200 is arranged inside the first cavity and there is a first gap 101 between the inner shell 200 and the outer shell 100. The inner shell 200 includes a top wall 201 and a bottom wall 202 arranged opposite to each other, two side walls 205 arranged opposite to each other, and a front wall 203 and a rear wall 204 arranged opposite to each other. The top wall 201, the bottom wall 202, the side walls 205, the front wall 203, and the rear wall 204 enclose to form a liquid cargo tank. A plurality of accommodating spaces 300 with different volumes are separately arranged in the liquid cargo tank. At the top edge and the bottom edge of the side wall 205, first bending segments 401 are respectively provided. At the end parts where the side wall 205 connects the front wall 203 and the rear wall 204, a plurality of second bending segments 402 are respectively provided. The plurality of second bending segments 402 are arranged in sequence along the direction from the front wall 203 to the rear wall 204. On each of the first bending segments 401 and the second bending segments 402, a plurality of ridges 403 facing the outside of the inner shell 200 are respectively provided. The arrangement of the plurality of ridges 403 on the plurality of second bending segments 402 enables the liquid cargo tank where the second bending segments 402 are located to obtain an accommodating space 300 with a larger volume, while increasing the loading capacity, reducing the impact on other parts of the ship, and being able to adaptively adjust the arrangement direction and position of the ridges 403 according to the external profile of the ship and the width requirements of the anti-pollution isolation empty tank, further improving the volume of the liquid cargo tank. By arranging accommodating spaces 300 with different volumes in the liquid cargo tank and loading with the spaced accommodating spaces 300, the loading volume is made as large as possible during the loading of the spaced cargo tank, and the positions of the center of gravity and the center of buoyancy are the same, without loading ballast water, thus improving the convenience.
[0032] In an alternative embodiment, the thickness of the second bending segment 402 is the same as the thickness of the side wall 205. On the premise of maintaining the volumes of the plurality of accommodating spaces 300, the volume of the liquid cargo tank at the bow and stern parts is increased through the arrangement of the second bending segments 402, thereby improving the loading capacity.
[0033] As Figure 3 、 Figure 4 shown, in an alternative embodiment, inclined surfaces 404 are respectively arranged on both sides of each ridge 403. Each inclined surface 404 is arranged as a straight wall panel, and every two adjacent straight wall panels are arranged obliquely to each other and form a ridge 403 at the connection.
[0034] As Figure 3 、 Figure 4As shown, in an alternative embodiment, the rib 403 extends in a straight line direction to maintain the overall strength of the structure, and the rib 403 can be arranged to extend horizontally and obliquely to adapt to the structural arrangement of the outer shell 100 and the structural arrangement within the outer shell 100.
[0035] As Figure 3 shown, in an alternative embodiment, the projection of the side wall 205 on the symmetry plane in the length direction of the liquid cargo tank is arranged in a rectangle, restricting the relative distance between the side wall 205 connecting the top wall 201 and the bottom wall 202, controlling the height of the liquid cargo tank, and controlling the top wall 201 at a set height position.
[0036] As Figure 3 shown, in an alternative embodiment, the projection of each second bent section 402 on the symmetry plane in the length direction of the liquid cargo tank is arranged in a rectangle, and the width control of each second bent section 402 makes it more convenient for the control formed by the rib 403 on each second bent section 402.
[0037] In an alternative embodiment, the side wall 205 is a corrugated bulkhead. The corrugated bulkhead enhances the strength and sealing performance of the structure by setting notches on the bulkhead. The notches of the corrugated bulkhead are usually designed to be able to insert other materials or structures to improve the overall stiffness and watertightness. This design allows for improving the pressure resistance and stability of the hull or submarine without adding too much weight. The design of the corrugated bulkhead can have different forms, such as U-shaped, V-shaped or more complex geometric shapes, depending on the application requirements and manufacturing processes. The corrugated bulkhead helps to form multiple independent compartments to improve the buoyancy and safety of the ship.
[0038] In an alternative embodiment, the width of the side wall 205 is an integer multiple of the ship's frame space, which is convenient for arrangement and can be reused during the arrangement process of different specifications of hulls, improving the usability.
[0039] As Figure 2 、 Figure 3 shown, in an alternative embodiment, the first bent section 401 located at the top edge of the side wall 205 is used to extend above the deck so that the top wall 201 is arranged higher than the deck, so that the deck and the top wall 201 form stepped surfaces with different heights. Without affecting the function of the deck, the volume of the liquid cargo tank is further increased, improving the loading capacity.
[0040] In an alternative embodiment, the top wall 201 is at least 2.4 meters higher than the deck, which is suitable for the coordination of the ship's body functionality and volume.
[0041] It should be understood that the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance. Although the terms "first", "second", etc. may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another. For example, the first unit may be referred to as the second unit, and similarly, the second unit may be referred to as the first unit, without departing from the scope of the exemplary embodiments of the present invention.
[0042] It should be understood that the term "and / or" herein is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" herein describes another association relationship of associated objects, indicating that two relationships may exist. For example, A / and B may represent: A exists alone, and A and B exist alone. In addition, the character " / " herein generally indicates that the associated objects before and after are in an "or" relationship.
[0043] It should be understood that in the description of the present invention, the orientation or positional relationship indicated by the terms "upper", "vertical", "inner", "outer", etc. is the orientation or positional relationship in which the disclosed product is customarily placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.
[0044] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0045] The terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments of the present invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "comprises", "comprising", "includes" and / or "including" when used herein specify the presence of the stated features, integers, steps, operations, units and / or components, and do not preclude the presence or addition of one or more other features, quantities, steps, operations, units, components and / or their combinations.
[0046] Specific details are provided in the following description to facilitate a thorough understanding of the example embodiments. However, those of ordinary skill in the art should understand that the example embodiments may be implemented without these specific details. In other embodiments, well-known processes, structures, and techniques may not be shown in unnecessary detail to avoid obscuring the example embodiments.
[0047] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather will conform to the widest scope consistent with the principles and novel features claimed herein.
[0048] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present disclosure, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art.
Claims
1. A liquid cargo tank of a chemical tanker, characterized in that, The liquid cargo tank includes: An outer shell with a first cavity formed therein; An inner shell disposed inside the first cavity, with a first gap provided between the inner shell and the outer shell. The inner shell includes a top wall and a bottom wall arranged oppositely, two side walls arranged oppositely, and a front wall and a rear wall arranged oppositely. The top wall, the bottom wall, the side walls, the front wall, and the rear wall enclose to form the liquid cargo tank. A plurality of accommodation spaces with different volumes are arranged separately in the liquid cargo tank. First bending segments are respectively provided at the top edge and the bottom edge of the side wall. A plurality of second bending segments are respectively provided at the end portions of the side wall connecting the front wall and the rear wall. The plurality of second bending segments are arranged in sequence along the direction from the front wall to the rear wall. A plurality of convex ribs facing the outside of the inner shell are respectively provided on each of the first bending segments and the second bending segments.
2. The liquid cargo tank of the chemical tanker according to claim 1, characterized in that: The thickness of the second bending segment is the same as the thickness of the side wall.
3. The cargo tank of the chemical tanker according to claim 1, characterized in that: Inclined surfaces are respectively arranged on both sides of each convex rib.
4. The liquid cargo tank of the chemical tanker as claimed in claim 3, characterized in that: The convex rib extends in a straight line direction.
5. The liquid cargo tank of the chemical tanker according to claim 1, characterized in that: The projection of the side wall on the symmetry plane in the length direction of the liquid cargo tank is arranged in a rectangle.
6. The liquid cargo tank of the chemical tanker as claimed in claim 1, characterized in that: The projection of each second bending segment on the symmetry plane in the length direction of the liquid cargo tank is arranged in a rectangle.
7. The liquid cargo tank of the chemical tanker according to claim 1, characterized in that: The side wall is a trough-shaped bulkhead.
8. The cargo tank of the chemical tanker according to claim 1, characterized in that: The width of the side wall is an integer multiple of the ship's frame space.
9. The liquid cargo tank of the chemical tanker according to claim 1, characterized in that: The first bending segment located at the top edge of the side wall is used to extend above the deck so that the top wall is arranged higher than the deck.
10. The liquid cargo tank of the chemical tanker according to claim 9, characterized in that: The top wall is at least 2.4 meters higher than the deck.