A segmented structure for the main body of an offshore platform

Abstract

This utility model provides a segmented structure for the main body of an offshore platform, belonging to the field of offshore platform construction technology. It includes a bow annular section, a mid-section annular section, and a stern annular section. The mid-section annular section comprises multiple interconnected platform segments and a first connecting structure disposed between adjacent platform segments. The first connecting structure includes a first extending seam structure and a first contracting seam structure that match each other. The mid-section and stern annular sections are interconnected along the length of the hull. This utility model divides the platform into bow, mid-section, and stern annular sections, each consisting of one segment, while the mid-section annular section can be arbitrarily set to eight segments. This facilitates flexible assembly and allows for timely adjustment of the positions of each segment during construction based on the construction progress, thereby improving construction accuracy, reducing rework rates, and effectively shortening the platform construction cycle.

Description

Technical Field

[0001] This utility model belongs to the field of offshore platform construction technology and relates to a segmented structure for the main body of an offshore platform. Background Technology

[0002] Offshore platforms can be categorized into three main types based on their structural characteristics and operational status: fixed, mobile, and semi-fixed. In addition, there are some special types of platforms, such as jack-up platforms, drilling vessels, and wind turbine installation vessels. With the increasing development and utilization of the ocean, the functional requirements for offshore platforms are becoming more diversified, leading to an increase in the number of customized offshore platforms for special purposes. Some offshore platforms have unique design features based on customer needs, which brings challenges in construction design, parts fabrication, assembly construction, and segmented assembly. Utility Model Content

[0003] This utility model provides a segmented structure for the main body of an offshore platform, including a bow annular section, a mid-section annular section and a stern annular section, wherein the bow annular section and the stern annular section are each provided as one piece, and the mid-section annular section is provided as at least one piece;

[0004] The central annular section includes multiple interconnected platform segments and a first connecting structure disposed between two adjacent platform segments. The first connecting structure includes a first protruding seam structure and a first contracting seam structure that match each other.

[0005] The central annular section and the stern annular section are connected to each other along the length of the hull.

[0006] Optionally, the central annular section includes a port bottom section, a mid-bottom section, and a starboard bottom section arranged sequentially. The port bottom section, mid-bottom section, and starboard bottom section are interconnected to form a U-shaped structure, and the port bottom section and starboard bottom section are arranged symmetrically.

[0007] Optionally, the port bottom section, mid-bottom section, and starboard bottom section are respectively set in a staggered overlapping manner along the width direction of the ship.

[0008] Optionally, a second connecting structure is provided between the port bottom section and the mid-bottom section, and between the mid-bottom section and the starboard bottom section. The second connecting structure includes a matching second extension seam structure and a second contraction seam structure.

[0009] Optionally, the stern annular section includes an upper mid-bottom section, a lower mid-bottom section, a port upper section, a port lower bottom section, a starboard upper section, and a starboard lower bottom section;

[0010] The upper port side section, the upper mid-bottom section, and the upper starboard side section are connected in sequence to form the upper annular section of the stern.

[0011] The lower left bottom section, the lower middle bottom section, and the lower right bottom section are connected in sequence to form the annular lower section of the stern.

[0012] The upper annular section and the lower annular section of the stern are connected sequentially from bottom to top.

[0013] Optionally, a third connecting structure is provided between the upper mid-bottom section and the upper left side section, and between the upper mid-bottom section and the upper right side section. The third connecting structure includes a third protruding seam structure and a third contracting seam structure that match each other.

[0014] A fourth connecting structure is provided between the lower mid-bottom section and the lower left bottom section, as well as between the lower mid-bottom section and the lower right bottom section. The fourth connecting structure includes a fourth extending seam structure and a fourth contracting seam structure that match each other.

[0015] Optionally, a fifth connecting structure is provided between the upper mid-bottom section and the lower mid-bottom section, between the upper port section and the lower port bottom section, and between the upper starboard section and the lower starboard bottom section. The fifth connecting structure includes a fifth extending seam structure and a fifth contracting seam structure that match each other.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This utility model provides a segmented structure for the main body of an offshore platform, which is divided into a bow annular section, a mid-section annular section, and a stern annular section. Specifically, the bow and stern annular sections each consist of one piece, and the mid-section annular section consists of eight pieces. This segmented structure allows for flexible assembly and timely adjustment of the positions between the segments according to the construction progress, thereby improving construction accuracy, reducing rework rate, and effectively shortening the platform construction cycle.

[0018] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of a segmented main body structure of an offshore platform according to an embodiment of this utility model;

[0021] Figure 2 yes Figure 1 Front view diagram;

[0022] Figure 3 yes Figure 1 A typical cross-sectional diagram;

[0023] Figure 4 yes Figure 1 A typical transverse bulkhead diagram;

[0024] Figure 5 yes Figure 1 A schematic diagram of the joint structure where the port bottom section and the midsole section overlap.

[0025] Figure 6 yes Figure 1 A left-side view of the annular section of the midship and stern;

[0026] Figure 7 yes Figure 1 A schematic front view cross-section of the annular section in the mid-stern.

[0027] in:

[0028] 1. Main body of the offshore platform, 101. Mid-bottom section, 102. Port bottom section, 103. Starboard bottom section, 2. Stern annular section, 201. Upper mid-bottom section, 202. Lower mid-bottom section, 203. Upper port section, 204. Lower port bottom section, 205. Upper starboard section, 206. Lower starboard bottom section. Detailed Implementation

[0029] To make the above-mentioned objectives, features, and advantages of this utility model clearer and easier to understand, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that the accompanying drawings of this utility model are all in a simplified form and use non-precise proportions, and are only used to facilitate and clearly assist in illustrating the implementation of this utility model; the "several" mentioned in this utility model are not limited to the specific number shown in the examples in the drawings; the directions or positional relationships indicated by "front," "middle," "rear," "left," "right," "up," "down," "top," "bottom," and "middle" mentioned in this utility model are all based on the directions or positional relationships shown in the accompanying drawings of this utility model, and do not indicate or imply that the device or component referred to must have a specific orientation, nor should they be construed as limitations on this utility model.

[0030] Example:

[0031] See Figure 1 and Figure 2 As shown, the present invention provides a segmented structure for the main body of a marine platform, including a bow annular section, a mid-section annular section, and a stern annular section; preferably, each of the bow and stern annular sections is one piece, and the mid-section annular section is preferably at least one piece; preferably, the mid-section annular section is preferably eight pieces.

[0032] The platform section comprises multiple interconnected platform segments. Specifically, the platform section is divided into 10 segments on an average basis, and the joints between adjacent segments are designed to avoid cutting into the vertical transverse bulkhead structure or the area where the main engine / equipment is located, so as to avoid creating narrow spaces with significant construction safety hazards and reduce the difficulty of merging and connecting adjacent segments.

[0033] See Figures 3 to 5 As shown, the central annular section includes a port bottom section 102, a mid-bottom section 101, and a starboard bottom section 103 arranged sequentially. The port bottom section 102, the mid-bottom section 101, and the starboard bottom section 103 are interconnected to form a U-shaped structure.

[0034] Preferably, the port bottom section 102 and the starboard bottom section 103 are arranged symmetrically.

[0035] Further preferably, the port bottom section 102, mid-bottom section 101, and starboard bottom section 103 are respectively arranged in a staggered overlapping manner along the beam direction. Specifically, the portions of the mid-bottom section 101 that connect to the port bottom section 102 and the portions of the mid-bottom section 101 that connect to the starboard bottom section 103 are both designed as protruding seam structures, while the portions of the port bottom section 102 that connect to the mid-bottom section 101 and the portions of the starboard bottom section 103 that connect to the mid-bottom section 101 are preferably designed as contraction seam structures. The protruding seam structures and contraction seam structures cooperate to form a staggered overlapping seam structure. The staggered overlapping seam design of the mid-section annular section facilitates the assembly of the annular section into segments, and at the same time, the staggered overlapping makes it easier to control the accuracy of the width direction of the mid-section annular section.

[0036] See Figure 6 and Figure 7 As shown, the stern annular section 2 includes an upper mid-bottom section 201, a lower mid-bottom section 202, a port upper-side section 203, a port lower-side bottom section 204, a starboard upper-side section 205, and a starboard lower-side bottom section 206. The port upper-side section 203, the upper mid-bottom section 201, and the starboard upper-side section 205 are connected sequentially to form the upper annular section of the stern. The port lower-side bottom section 204, the lower mid-bottom section 202, and the starboard lower-side bottom section 206 are connected sequentially to form the lower annular section of the stern. The upper annular section and the lower annular section are connected sequentially from bottom to top. By configuring the stern annular section 2 to include the upper annular section and the lower annular section, the installation processes of the main engine, auxiliary engines, and equipment can be moved forward, improving equipment installation accuracy and reducing the difficulty of equipment entry into the cabin.

[0037] Preferably, the height of the upper mid-bottom section 201 (i.e., the vertical dimension of the upper mid-bottom section 201) is preferably set to 1 meter, and the heights of the upper port side section 203 and the upper starboard side section 205 are both preferably set to 5 meters.

[0038] Further preferably, the portions of the upper mid-bottom section 201 that connect to the upper port side section 203 and the portions of the upper mid-bottom section 201 that connect to the upper starboard side section 205 are both preferably configured as protruding seam structures; the portions of the upper port side section 203 that connect to the upper mid-bottom section 201 and the portions of the upper starboard side section 205 that connect to the upper mid-bottom section 201 are both preferably configured as contraction seam structures; the upper mid-bottom section 201 and the upper port side section 203, as well as the upper mid-bottom section 201 and the upper starboard side section 205, are interconnected by a staggered overlapping method.

[0039] Further preferably, the portions of the lower mid-bottom section 202 that connect to the lower port bottom section 204 and the portions of the lower mid-bottom section 202 that connect to the lower starboard bottom section 206 are both preferably configured as protruding seam structures; the portions of the lower port bottom section 204 that connect to the lower mid-bottom section 202 and the portions of the lower starboard bottom section 206 that connect to the lower mid-bottom section 202 are both preferably configured as contraction seam structures; the lower mid-bottom section 202 and the lower port bottom section 204, as well as the lower mid-bottom section 202 and the lower starboard bottom section 206, are interconnected by a staggered overlapping method.

[0040] More preferably, the portions of the upper mid-bottom section 201 that connect with the lower mid-bottom section 202, the portions of the upper left side section 203 that connect with the lower left side bottom section 204, and the portions of the upper right side section 205 that connect with the lower right side bottom section 206 are all preferably provided as protruding seam structures; shrinkage seam structures for cooperating and connecting with the protruding seam structures are respectively provided on the lower mid-bottom section 202, the lower left side bottom section 204, and the lower right side bottom section 206; the upper mid-bottom section 201 and the lower mid-bottom section 202, the upper left side section 203 and the lower left side bottom section 204, and the upper right side section 205 and the lower right side bottom section 206 are all connected to each other by a staggered overlapping method.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An offshore platform main body segmented structure, characterized by, It includes a bow annular section, a mid-section annular section and a stern annular section, wherein the bow annular section and the stern annular section are each one piece, and the mid-section annular section is at least one piece; The central annular section includes multiple interconnected platform segments and a first connecting structure disposed between two adjacent platform segments. The first connecting structure includes a first protruding seam structure and a first contracting seam structure that match each other. The central annular section and the stern annular section are connected to each other along the length of the hull.

2. A structure of segments of a platform offshore main body according to claim 1, characterized in that, The central annular section includes a port bottom section (102), a mid-bottom section (101), and a starboard bottom section (103) arranged sequentially. The port bottom section (102), mid-bottom section (101), and starboard bottom section (103) are connected to each other to form a U-shaped structure, and the port bottom section (102) and starboard bottom section (103) are arranged symmetrically.

3. The segmented structure of the main body of the offshore platform according to claim 2, characterized in that, The port bottom section (102), mid-bottom section (101), and starboard bottom section (103) are respectively set in a staggered overlapping manner along the width of the ship.

4. The segmented structure of the main body of the offshore platform according to claim 3, characterized in that, A second connecting structure is provided between the port bottom section (102) and the mid-bottom section (101) and between the mid-bottom section (101) and the starboard bottom section (103). The second connecting structure includes a second protruding seam structure and a second contracting seam structure that match each other.

5. The segmented structure of the main body of the offshore platform according to claim 1, characterized in that, The stern annular section (2) includes an upper mid-bottom section (201), a lower mid-bottom section (202), a port upper section (203), a port lower bottom section (204), a starboard upper section (205), and a starboard lower bottom section (206); The upper port side section (203), the upper mid-bottom section (201), and the upper starboard side section (205) are connected in sequence to form the upper annular section of the stern. The lower left bottom section (204), the lower middle bottom section (202), and the lower right bottom section (206) are connected in sequence to form the annular lower section of the stern. The upper annular section and the lower annular section of the stern are connected sequentially from bottom to top.

6. The segmented structure of the main body of the offshore platform according to claim 5, characterized in that, A third connecting structure is provided between the upper mid-bottom section (201) and the upper left side section (203) and between the upper mid-bottom section (201) and the upper right side section (205). The third connecting structure includes a third protruding seam structure and a third contracting seam structure that match each other. A fourth connecting structure is provided between the lower mid-bottom section (202) and the lower left bottom section (204) and between the lower mid-bottom section (202) and the lower right bottom section (206). The fourth connecting structure includes a fourth extending seam structure and a fourth contracting seam structure that match each other.

7. The segmented structure of the main body of the offshore platform according to claim 5, characterized in that, A fifth connecting structure is provided between the upper mid-bottom section (201) and the lower mid-bottom section (202), between the upper port side section (203) and the lower port side bottom section (204), and between the upper starboard side section (205) and the lower starboard side bottom section (206). The fifth connecting structure includes a fifth extending seam structure and a fifth contracting seam structure that match each other.

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