A method for arranging corrugated plates and corrugated units in an LNG carrier cargo containment system.

Abstract

This application relates to a corrugated plate and a method for arranging corrugated units in an LNG carrier cargo containment system. The corrugated plate is formed by staggered splicing of multiple identical corrugated units with corrugated protrusions. The bottom surfaces of any two adjacent corrugated units are not aligned on a continuous straight line, and there is a blank area without corrugated protrusions between any two non-adjacent corrugated units. This application avoids the design limitations of traditional corrugated unit arrangement methods, allowing for more choices and optimization of the corrugated unit's form. The edges with the weakest tensile strength of the corrugated units are not aligned on a continuous straight line, thus avoiding the concentration of cold contraction stress along a continuous straight line.

Description

Technical Field

[0001] This application relates to the field of shipbuilding technology, and in particular to a method for arranging corrugated plates and corrugated units in an LNG carrier cargo containment system. Background Technology

[0002] Currently, the corrugated plate corrugated units of the commonly used LNG carrier cargo containment system are arranged in a cross or parallel manner. This arrangement greatly restricts the design of the corrugated units, limiting their diversity and optimization direction. Furthermore, the edge with the worst tensile strength of the corrugated unit is on a continuous straight line, resulting in the concentration of cold shrinkage stress on the continuous straight line. Summary of the Invention

[0003] (1) Technical problems to be solved

[0004] This application provides a method for arranging corrugated plates and corrugated units in an LNG carrier cargo containment system, thereby solving the problems mentioned in the background art.

[0005] (2) Technical solution

[0006] In a first aspect, this application provides a corrugated plate for an LNG carrier cargo containment system. The corrugated plate is obtained by staggered splicing of multiple identical corrugated units with corrugated protrusions. The bottom surfaces of each pair of adjacent corrugated units are not on a continuous straight line, and there is a blank area without corrugated protrusions between each pair of non-adjacent corrugated units.

[0007] Furthermore, the shape of the blank area is the same as the shape of the bottom surface of the corrugated unit.

[0008] Furthermore, the area of ​​the blank area is smaller than the area of ​​the bottom surface of the corrugated unit.

[0009] Furthermore, the bottom surface of the corrugated unit is square, and the blank area is square.

[0010] Furthermore, every four of the corrugated units are arranged around the same blank area.

[0011] Furthermore, the length of the connecting portion between any two adjacent corrugated units is half the length of the connecting edge.

[0012] Furthermore, the side length of the blank area is half the side length of the bottom surface of the corrugated unit.

[0013] Secondly, this application provides a method for arranging corrugated units in an LNG carrier cargo containment system, including:

[0014] The corrugated plate of the LNG carrier cargo containment system is obtained by arranging four identical corrugated units with corrugated protrusions around the same blank area and splicing them in a staggered manner.

[0015] (3) Beneficial effects

[0016] The above-mentioned technical solution of this application has the following advantages:

[0017] The corrugated plate of the LNG carrier cargo containment system provided in the first aspect of this application can avoid the design limitations of the corrugated unit by the traditional commonly used corrugated unit arrangement method, and give more choices and optimization space for the form of the corrugated unit. The edge with the worst tensile strength of the corrugated unit is not on a continuous straight line in the arrangement, thus avoiding the concentration of cold shrinkage stress on a continuous straight line.

[0018] It is understandable that the beneficial effects of the second aspect mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the corrugated plate of the LNG carrier cargo containment system provided in this application;

[0021] Figure 2 This is a partial enlarged view of the corrugated plate of the LNG carrier cargo containment system provided in this application.

[0022] Reference numerals: 1. Corrugated element; 11. Each pair of corresponding edges on the bottom surface of two adjacent corrugated elements; 12. The connecting part of two adjacent corrugated elements; 13. The connecting edge of two adjacent corrugated elements; 2. Blank area. Detailed Implementation

[0023] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized.

[0027] This application provides a corrugated plate for an LNG carrier cargo containment system. The aim is to design a method for arranging corrugated units to avoid their edges being on a continuous straight line. This avoids the design limitations imposed by traditional corrugated unit arrangement methods, allowing for more choices and optimization of the corrugated unit's form. This application is applicable to LNG carrier cargo tanks, LNG fuel tanks on other vessels, and land-based LNG storage tanks.

[0028] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application.

[0029] This application provides a corrugated plate for an LNG carrier cargo containment system, such as... Figure 1 and Figure 2As shown, the corrugated plate of the LNG carrier cargo containment system is obtained by staggered splicing of multiple identical corrugated units 1 with corrugated protrusions. The bottom surfaces of each pair of corrugated units 1 are not on a continuous straight line, and there is a blank area 2 without corrugated protrusions between each pair of non-adjacent corrugated units 1.

[0030] In some embodiments, the shape of the blank area 2 is the same as the shape of the bottom surface of the corrugated unit 1.

[0031] In some embodiments, the area of ​​the blank area 2 is smaller than the area of ​​the bottom surface of the corrugated unit 1.

[0032] In some embodiments, the bottom surface of the corrugated unit 1 is square, and the blank area 2 is square.

[0033] In some embodiments, every four corrugated units 1 are arranged around the same blank area 2.

[0034] In some embodiments, the length of the connecting portion 12 of each pair of adjacent corrugated units 1 is half the length of the connecting edge 13.

[0035] In some embodiments, the side length of the blank area 2 is half the side length of the bottom surface of the corrugated unit 1.

[0036] In applications, such as Figure 2 As shown, the central square blank area is a flat area with no corrugated protrusions, defined by half the side length of the bottom surface of the corrugated unit. The corrugated unit contains stamped protrusions, which have the ability to absorb deformation.

[0037] Place one corrugated unit close to the blank area of ​​the central square, and make one side of the central square coincide with the side of the corrugated unit, with the endpoints of the two sides coinciding. Repeat the above steps for the other three corrugated units, rotating them 90 degrees around the center to correspond to the other three sides of the central square, forming a four-corrugated unit arrangement surrounding the central square.

[0038] The corrugated plate has no continuous planar straight lines in any direction, thus avoiding stress concentration due to cold contraction. In this embodiment, a four-sided pyramidal corrugated unit is used; the specific form of the corrugated unit can be adjusted according to requirements.

[0039] This application embodiment also provides a method for arranging corrugated units of an LNG carrier cargo containment system, including: arranging four identical corrugated units with corrugated protrusions around the same blank area as the center, and splicing them in a staggered manner to obtain the corrugated plate of the LNG carrier cargo containment system.

[0040] In application, the arrangement of corrugated units in the LNG carrier cargo containment system includes leaving a blank area in the center and arranging the corrugated units around the blank area in a manner that overlaps with the first half-width of the central blank area.

[0041] The blank area in the center refers to leaving a blank area without corrugations in the center when arranging the corrugated units. The arrangement of the corrugated units surrounding the central blank area with the first half-width overlap refers to arranging four corrugated units around the central blank area with the first half-width overlapping with the central square edge.

[0042] Specifically, leaving a blank area in the center means reserving a square blank area with no corrugations at the center, with a side length equal to half the side length of the bottom surface of the corrugated unit.

[0043] The arrangement of corrugated units surrounding the central blank area with half a width overlap involves placing one corrugated unit close to the central square plane area, aligning one side of the central square with the bottom edge of the corrugated unit, and keeping one end of each side aligned. The other three corrugated units are arranged in the same way, rotating 90 degrees around the center to correspond to the other three sides of the central square, thus forming a four-corrugated unit arrangement surrounding the central square.

[0044] Leaving a square blank area in the center provides a positioning reference and misalignment space for the surrounding corrugated units, and reserves a position for anchoring welding of the corrugated plate.

[0045] The arrangement of corrugated elements overlapping the central blank area at the first half-width ensures that the edges with the worst tensile strength of the corrugated elements are not on a continuous straight line, thus avoiding the concentration of cold shrinkage stress on a continuous straight line.

[0046] The method for arranging corrugated plates and corrugated units in the LNG carrier cargo containment system provided in this application has a simple arrangement of corrugated units, is easy to manufacture, has strong adaptability to different corrugated units, and exhibits low cold shrinkage stress at low temperatures. Using this arrangement method broadens the design possibilities for corrugated units, providing more choices and optimization space for their form, which is beneficial for the design and manufacturing of corrugated plates. It can be applied to, but is not limited to, LNG carriers, LNG fuel tanks, and LNG land-based storage tanks.

[0047] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application.

[0048] It should be noted that the various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. For the embodiments of the method, relevant parts can be referred to the description of the device embodiments (as used in the writing). This application is not limited to the specific steps and structures described above and shown in the figures. Furthermore, for the sake of brevity, detailed descriptions of known method techniques are omitted here.

[0049] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A corrugated plate for an LNG carrier cargo containment system, characterized in that, The corrugated plate of the LNG carrier cargo containment system is obtained by staggered splicing of multiple identical corrugated units with corrugated protrusions. The bottom surfaces of each pair of adjacent corrugated units are not on a continuous straight line, and there is a blank area without corrugated protrusions between each pair of non-adjacent corrugated units. The shape of the blank area is the same as the shape of the bottom surface of the corrugated unit. The area of ​​the blank area is smaller than the area of ​​the bottom surface of the corrugated unit. The bottom surface of the corrugated unit is square. The blank area is square. Every four corrugated units are arranged around the same blank area. The length of the connecting part of every two adjacent corrugated units is half the length of the connecting side. The side length of the blank area is half the side length of the bottom surface of the corrugated unit.

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