CN114715342B - Soft connection mechanism for floating body and offshore floating platform - Google Patents
Soft connection mechanism for floating body and offshore floating platform Download PDFInfo
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- CN114715342B CN114715342B CN202210480040.5A CN202210480040A CN114715342B CN 114715342 B CN114715342 B CN 114715342B CN 202210480040 A CN202210480040 A CN 202210480040A CN 114715342 B CN114715342 B CN 114715342B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/446—Floating structures carrying electric power plants for converting wind energy into electric energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
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- Ocean & Marine Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
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Abstract
The invention discloses a flexible connection mechanism for a floating body and an offshore floating platform. The flexible connection mechanism for the floating body comprises a first connector; a second connector; the first end of the telescopic damping piece is rotationally connected with the first connecting body, the second end of the telescopic damping piece is rotationally connected with the second connecting body, and the two ends of the telescopic damping piece can perform telescopic movement under the action of external force; the first elastic rope is connected with the first connector and the second connector; the first elastic rope and the second elastic rope are symmetrically arranged on two sides of the telescopic damping piece. When the floating body is acted by multidirectional wind and waves, the flexible connecting mechanism can be subjected to bending deformation, pulling-pressing deformation or torsional deformation, so that the shearing force and torsion of the flexible connecting mechanism in the use process are reduced, the fatigue damage or limit damage phenomenon is reduced, and the connecting stability of the floating body is improved.
Description
Technical Field
The invention relates to the technical field of connecting mechanisms, in particular to a flexible connecting mechanism for a floating body and an offshore floating platform.
Background
The connecting piece between the modularized floating bodies plays a key role in the stability of the offshore wind power platform, and due to the influence of offshore wind waves, the connecting piece is often subjected to larger tensile force, compressive force and torsional force in the use process, so that fatigue damage or limit damage of the connecting piece is often caused, and the stability of the connection of the floating bodies is reduced.
Therefore, how to improve the stability of the floating body connection is a technical problem that the skilled person needs to solve at present.
Disclosure of Invention
In view of the above, the present invention is directed to a flexible connection mechanism for a floating body to improve the stability of the connection of the floating body.
In order to achieve the above object, the present invention provides the following technical solutions:
a flexible connection mechanism for a floating body for connecting a first floating body and a second floating body, the flexible connection mechanism for a floating body comprising:
the first connecting body is used for being connected with the first floating body;
the second connector is used for being connected with the second floating body;
the first end of the telescopic damping piece is rotationally connected with the first connector, the second end of the telescopic damping piece is rotationally connected with the second connector, and the two ends of the telescopic damping piece can perform telescopic movement under the action of external force;
a first elastic cord connecting the first connector and the second connector; and
the second elastic rope is connected with the first connecting body and the second connecting body, and the first elastic rope and the second elastic rope are symmetrically arranged on two sides of the telescopic damping piece.
Preferably, in the flexible connection mechanism for the floating body, the telescopic damping member is a hydraulic telescopic cylinder, a pneumatic telescopic cylinder or a high damping spring.
Preferably, in the flexible connection mechanism for a floating body, a first rotary connection ball is provided at a first end of the telescopic damping member, a first rotary connection hole for being in rotary fit with the first rotary connection ball is provided at the first connection body, a second rotary connection ball is provided at a second end of the telescopic damping member, and a second rotary connection hole for being in rotary fit with the second rotary connection ball is provided at the second connection body.
Preferably, in the flexible connection mechanism for a floating body, the first elastic rope and the second elastic rope have the same structure;
the two ends of the first elastic rope are respectively connected with the first connector and the second connector in a rotating way.
Preferably, in the above flexible connection mechanism for a floating body, a first hinge ball is provided at a first end of the first elastic cord, a first hinge hole is provided at the first connection body for being in running fit with the first hinge ball, a second hinge ball is provided at a second end of the first elastic cord, and a second hinge hole is provided at the second connection body for being in running fit with the second hinge ball.
Preferably, in the flexible connection mechanism for a floating body, the first connection body includes a first connection split, a second connection split and a third connection split, and the second connection body includes a fourth connection split, a fifth connection split and a sixth connection split;
the first connecting split body and the fourth connecting split body are arranged in parallel, and two ends of the first elastic rope are respectively connected with the first connecting split body and the fourth connecting split body; the second connecting split body and the fifth connecting split body are arranged in parallel, and two ends of the telescopic damping piece are respectively connected with the second connecting split body and the fifth connecting split body; the third connecting split body and the sixth connecting split body are arranged in parallel, and two ends of the second elastic rope are respectively connected with the third connecting split body and the sixth connecting split body.
Preferably, in the above flexible connection mechanism for a floating body, a length of the first connection body in a first direction is adjustable, and the first direction is a direction from a connection position of the first elastic rope and the first connection body to a connection position of the second elastic rope and the first connection body.
Preferably, in the flexible connection mechanism for a floating body, the first connector and the second connector have the same structure; or one of the first connector and the second connector is of a split structure, the other is of a structure capable of adjusting the length in a first direction, and the first direction is a direction pointing from the connection position of the first elastic rope and the first connector to the connection position of the second elastic rope and the first connector.
Preferably, in the flexible connection mechanism for a floating body, the first elastic rope and the second elastic rope are both high polymer polyester fiber cables.
The floating type platform comprises a plurality of floating type platforms and any one of the soft connecting mechanisms for the floating bodies, wherein the floating type platforms are arranged in a square array, and the adjacent floating type platforms are connected through the soft connecting mechanisms for the floating bodies.
When the flexible connecting mechanism for the floating body is used, the flexible connecting mechanism is connected with the first floating body through the first connecting body and connected with the second floating body through the second connecting body, and as the two ends of the telescopic damper are respectively connected with the first connecting body and the second connecting body in a rotating way, the two ends of the telescopic damper can perform telescopic movement under the action of external force, when the floating body is subjected to the action of multidirectional storms, the flexible connecting mechanism can perform bending deformation, tension-compression deformation or torsional deformation, so that the floating body array connected through the flexible connecting mechanism can deform along with different wave heights, the shearing force and torsion of the flexible connecting mechanism in the use process are reduced, the fatigue damage or limit damage phenomenon of the flexible connecting mechanism is reduced, and the stability of the connection of the floating body is improved; and the flexible connecting mechanism is also connected with the first connecting body and the second connecting body through the first elastic ropes and the second elastic ropes which are arranged on two sides of the telescopic damping piece, the axial load of the telescopic damping piece can be shared through the first elastic ropes and the second elastic ropes, the phenomenon that the telescopic damping piece is damaged in a limiting way is reduced, and the resetting of the first connecting body and the second connecting body can be accelerated through the first elastic ropes and the second elastic ropes, namely, the resetting of the flexible connecting mechanism for the floating body is accelerated, so that the stability of the connection of the floating body is further improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a flexible connection mechanism for a floating body according to an embodiment of the present invention;
FIG. 2 is a schematic view of another flexible connection mechanism for a floating body according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a front structure of a flexible connection mechanism for a floating body according to an embodiment of the present invention when the flexible connection mechanism is not deformed;
fig. 4 is a schematic diagram of a front structure of a flexible connection mechanism for a floating body when the middle part of the flexible connection mechanism is bent upwards;
FIG. 5 is a schematic view showing a front structure of a flexible connection mechanism for a floating body when the middle part of the flexible connection mechanism is bent downwards;
fig. 6 is a schematic diagram of a front structure of a flexible connection mechanism for a floating body according to an embodiment of the present invention when the flexible connection mechanism is deformed by stretching;
fig. 7 is a schematic front structural view of a flexible connection mechanism for a floating body according to an embodiment of the present invention when the flexible connection mechanism is compressively deformed;
fig. 8 is a schematic front view of a flexible connection mechanism for a floating body according to an embodiment of the present invention when the flexible connection mechanism is torsionally deformed;
FIG. 9 is a schematic diagram of a flexible connection mechanism for floating bodies connecting adjacent floating platforms according to an embodiment of the present invention;
fig. 10 shows a large array of offshore floating platforms connected by flexible connection means according to an embodiment of the present invention.
Wherein 100 is a first connector, 101 is a first connection split, 102 is a second connection split, 103 is a third connection split, 200 is a second connector, 201 is a fourth connection split, 202 is a fifth connection split, 203 is a sixth connection split, 300 is a telescopic damping element, 400 is a first elastic rope, 500 is a second elastic rope, and 600 is a floating platform.
Detailed Description
In view of the above, the core of the present invention is to provide a flexible connection mechanism for floating bodies to improve the stability of the connection of the floating bodies.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 10, an embodiment of the present invention discloses a flexible connection mechanism for a floating body for connecting a first floating body and a second floating body, which includes a first connection body 100, a second connection body 200, a telescopic damping member 300, a first elastic string 400, and a second elastic string 500.
Wherein the first connecting body 100 is used for connecting with the first floating body; the second connector 200 is used for connecting with a second floating body; the first end of the telescopic damping piece 300 is rotatably connected with the first connector 100, the second end of the telescopic damping piece 300 is rotatably connected with the second connector 200, and the two ends of the telescopic damping piece 300 can perform telescopic movement under the action of external force; the first elastic string 400 connects the first connector 100 and the second connector 200; the second elastic cord 500 is connected to the first connector 100 and the second connector 200, and the first elastic cord 400 and the second elastic cord 500 are symmetrically disposed at both sides of the telescopic damping member 300.
When the flexible connecting mechanism for the floating body is used, the flexible connecting mechanism is connected with the first floating body through the first connecting body 100 and connected with the second floating body through the second connecting body 200, and as the two ends of the telescopic damper are respectively connected with the first connecting body 100 and the second connecting body 200 in a rotating way, the two ends of the telescopic damper 300 can perform telescopic movement under the action of external force, when the floating body is subjected to the action of multidirectional stormy waves, the flexible connecting mechanism can perform bending deformation, tension-compression deformation or torsional deformation, so that the floating body array connected through the flexible connecting mechanism can deform along with different wave heights, the shearing force and the torsion force of the flexible connecting mechanism in the using process are reduced, the fatigue damage or limit damage phenomenon of the flexible connecting mechanism is reduced, and the stability of the connection of the floating body is improved; in addition, the flexible connection mechanism is further connected with the first connection body 100 and the second connection body 200 through the first elastic rope 400 and the second elastic rope 500 which are arranged at two sides of the telescopic damping piece 300, the axial load of the telescopic damping piece 300 can be shared through the first elastic rope 400 and the second elastic rope 500, the phenomenon that the telescopic damping piece 300 is broken in a limiting mode is reduced, and the resetting of the first connection body 100 and the second connection body 200, namely the resetting of the flexible connection mechanism for the floating body, can be accelerated through the first elastic rope 400 and the second elastic rope 500, so that the stability of the connection of the floating body is further improved.
It should be noted that, the telescopic damper 300 may be a hydraulic telescopic cylinder, a pneumatic telescopic cylinder, a high damping spring, or the like, and any type capable of meeting the use requirement is within the scope of the present invention.
In addition, two ends of the telescopic damping member 300 may be respectively connected with the first connector 100 and the second connector 200 in a rotating manner through universal joints, universal bearings or rotating connection balls, and any connection manner capable of meeting the use requirements is within the protection scope of the present invention; alternatively, the two ends of the telescopic damping member 300 provided in the embodiment of the present invention are respectively connected to the first connector 100 and the second connector 200 by a ball hinge.
Specifically, the first end of the telescopic damping member 300 is provided with a first rotating connection ball, the first connecting body 100 is provided with a first rotating connection hole for rotating and matching with the first rotating connection ball, so that the rotating connection is realized through the matching of the first rotating connection ball and the first rotating connection hole, and the flexible connection mechanism is convenient for deformation at the connection position of the telescopic damping member 300 and the first connecting body 100 when the flexible connection mechanism is subjected to external force, and the load born by the telescopic damping member 300 is reduced; the second end of the telescopic damping piece 300 is provided with a second rotating connecting ball, the second connecting body 200 is provided with a second rotating connecting hole for being in rotating fit with the second rotating connecting ball, so that rotating connection is realized through the matching of the second rotating connecting ball and the second rotating connecting hole, and the connecting position of the telescopic damping piece 300 and the second connecting body 200 can be deformed when the flexible connecting mechanism is subjected to external force, and the load born by the telescopic damping piece 300 is reduced.
The structures of the first elastic cord 400 and the second elastic cord 500 provided by the invention can be the same or different, and all the structures capable of meeting the use requirements are within the protection scope of the invention; optionally, the first elastic cord 400 and the second elastic cord 500 provided in the embodiment of the present invention have the same structure, so as to improve the universalization rate of the parts and reduce the design development cost and the manufacturing cost.
The two ends of the first elastic rope 400 are respectively rotatably connected with the first connector 100 and the second connector 200, so as to increase the degree of freedom of the first elastic rope 400, improve the flexibility of the first elastic rope 400, facilitate the rotation when the flexible connection mechanism is stressed, reduce the load borne by the first elastic rope 400, alleviate the abrasion borne by the first elastic rope 400, and prolong the service life of the first elastic rope 400.
It should be understood that the two ends of the first elastic cord 400 may be rotatably connected to the first connecting body 100 and the second connecting body 200 through universal joints, universal bearings or hinged balls, and any connection manner capable of meeting the use requirements is within the scope of the present invention.
Specifically, the first end of the first elastic string 400 is provided with a first hinge ball, the first connector 100 is provided with a first hinge hole for being in running fit with the first hinge ball, the second end of the first elastic string 400 is provided with a second hinge ball, and the second connector 200 is provided with a second hinge hole for being in running fit with the second hinge ball, so that the first elastic string 400 is in running connection with the first connector 100 through the cooperation of the first hinge ball and the first hinge hole, and the first elastic string 400 is in running connection with the second connector 200 through the cooperation of the second hinge ball and the second hinge hole.
Further, the first connector 100 and the second connector 200 may be of a split type structure, an integrally fixed type structure, or an integrally telescopic type structure, and the like, so long as the types can meet the use requirements, and the types are within the scope of the present invention; alternatively, as shown in fig. 1, in an embodiment of the present invention, the first connector 100 and the second connector 200 have the same structure and are all split structures.
Specifically, the first connection body 100 includes a first connection split 101, a second connection split 102 and a third connection split 103, and the second connection body 200 includes a fourth connection split 201, a fifth connection split 202 and a sixth connection split 203, so that the length of the first connection body 100 and the second connection body 200 can be adjusted by adjusting the distance between two adjacent link splits, the flexible connection mechanism can be adjusted according to the length adaptability of the floating body to be connected, and the versatility of the flexible connection mechanism is improved.
As shown in fig. 1, the first connection sub-body 101 and the fourth connection sub-body 201 are arranged in parallel, and both ends of the first elastic cord 400 are respectively connected with the first connection sub-body 101 and the fourth connection sub-body 201; the second connecting split body 102 and the fifth connecting split body 202 are arranged in parallel, and two ends of the telescopic damping piece 300 are respectively connected with the second connecting split body 102 and the fifth connecting split body 202; the third connecting split body 103 and the sixth connecting split body 203 are arranged in parallel, and two ends of the second elastic rope 500 are respectively connected with the third connecting split body 103 and the sixth connecting split body 203, so that the stress directions of the first elastic rope 400, the telescopic damping piece 300 and the second elastic rope 500 are parallel, and the stress balance of the soft connecting mechanism is improved.
Optionally, in another embodiment of the present invention, the length of the first connecting body 100 in the first direction is adjustable, and the first direction is a direction from the connection position of the first elastic cord 400 and the first connecting body 100 to the connection position of the second elastic cord 500 and the first connecting body 100, so that the flexible connection mechanism for the floating body can adaptively adjust the length according to the length of the floating body to be connected by adjusting the length of the first connecting body 100, thereby improving the versatility of the flexible connection mechanism.
It should be understood that the first connector 100 may be a telescopic sleeve mechanism, a sliding rail mechanism, a scissor type telescopic frame, or any other type of structure capable of adjusting the length in the first direction, and all structures are within the scope of the present invention.
The first connector 100 and the second connector 200 may be of a split type structure, an integrally fixed type structure, or an integrally telescopic type structure, or the first connector 100 may be of one of a split type structure, an integrally fixed type structure, or an integrally telescopic type structure, and the second connector 200 may be of a different structure from the first connector 100, that is, the first connector 100 and the second connector 200 may be of a different structure, so long as the installation manner is capable of meeting the use requirement.
Alternatively, in an embodiment of the present invention, the first connector 100 and the second connector 200 have the same structure; in another embodiment of the present invention, one of the first and second connection bodies 100 and 200 is a split structure, and the other is a structure capable of adjusting a length in a first direction from a connection position of the first elastic string 400 to the first connection body 100 to a connection position of the second elastic string 500 to the first connection body 100.
The first elastic rope 400 and the second elastic rope 500 provided by the invention can be of rubber ropes, high polymer polyester fiber ropes or latex ropes and the like, and all types which can meet the use requirements are within the protection scope of the invention; optionally, the first elastic cord 400 and the second elastic cord 500 provided by the embodiment of the invention are both made of polymer polyester fiber cables, which are light in weight and have high strength and elastic recovery capability.
In addition, the invention also discloses an offshore floating platform, which comprises a plurality of floating platforms 600 and the soft connecting mechanism for the floating bodies, wherein the floating platforms 600 are distributed in a square array, and the adjacent floating platforms 600 are connected through the soft connecting mechanism for the floating bodies to form the offshore floating platform in a large array form.
The terms first and second and the like in the description and in the claims and in the above-described figures are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to the listed steps or elements but may include steps or elements not expressly listed.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A flexible connection mechanism for a floating body for connecting a first floating body and a second floating body, the flexible connection mechanism for a floating body comprising:
the first connecting body is used for being connected with the first floating body;
the second connector is used for being connected with the second floating body;
the first end of the telescopic damping piece is rotationally connected with the first connector, the second end of the telescopic damping piece is rotationally connected with the second connector, and the two ends of the telescopic damping piece can perform telescopic movement under the action of external force;
a first elastic cord connecting the first connector and the second connector; and
the first elastic rope and the second elastic rope are symmetrically arranged on two sides of the telescopic damping piece;
two ends of the first elastic rope are respectively connected with the first connector and the second connector in a rotating way;
the length of the first connecting body in the first direction can be adjusted, and the first direction is the direction pointing to the connection position of the second elastic rope and the first connecting body from the connection position of the first elastic rope and the first connecting body.
2. The flexible connection mechanism for a floating body of claim 1, wherein the telescopic damping member is a hydraulic telescopic cylinder, a pneumatic telescopic cylinder, or a high damping spring.
3. The flexible connection mechanism for a floating body according to claim 1, wherein a first end of the telescopic damping member is provided with a first rotational connection ball, the first connection body is provided with a first rotational connection hole for rotational engagement with the first rotational connection ball, a second end of the telescopic damping member is provided with a second rotational connection ball, and the second connection body is provided with a second rotational connection hole for rotational engagement with the second rotational connection ball.
4. The flexible connection mechanism for a floating body of claim 1, wherein the first bungee cord and the second bungee cord are identical in construction;
5. the flexible connection mechanism for a floating body of claim 4, wherein a first end of the first bungee cord is provided with a first hinge-ball, the first connector is provided with a first hinge-hole for rotational engagement with the first hinge-ball, a second end of the first bungee cord is provided with a second hinge-ball, and the second connector is provided with a second hinge-hole for rotational engagement with the second hinge-ball.
6. The flexible connection unit for a floating body of claim 1, wherein the first connection body comprises a first connection split, a second connection split, and a third connection split, the second connection body comprises a fourth connection split, a fifth connection split, and a sixth connection split;
the first connecting split body and the fourth connecting split body are arranged in parallel, and two ends of the first elastic rope are respectively connected with the first connecting split body and the fourth connecting split body; the second connecting split body and the fifth connecting split body are arranged in parallel, and two ends of the telescopic damping piece are respectively connected with the second connecting split body and the fifth connecting split body; the third connecting split body and the sixth connecting split body are arranged in parallel, and two ends of the second elastic rope are respectively connected with the third connecting split body and the sixth connecting split body.
7. The flexible connection mechanism for a floating body of claim 1, wherein the first connector and the second connector are identical in structure; or one of the first connector and the second connector is of a split structure, the other is of a structure capable of adjusting the length in a first direction, and the first direction is a direction pointing from the connection position of the first elastic rope and the first connector to the connection position of the second elastic rope and the first connector.
8. The flexible connection unit for a floating body of claim 1, wherein the first elastic cord and the second elastic cord are both polymeric polyester fiber cables.
9. An offshore floating platform, comprising a plurality of floating platforms and a flexible connection mechanism for a floating body according to any one of claims 1 to 8, wherein a plurality of floating platforms are arranged in a square array, and adjacent floating platforms are connected through the flexible connection mechanism for the floating body.
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| CN202210480040.5A CN114715342B (en) | 2022-05-05 | 2022-05-05 | Soft connection mechanism for floating body and offshore floating platform |
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| CN202210480040.5A CN114715342B (en) | 2022-05-05 | 2022-05-05 | Soft connection mechanism for floating body and offshore floating platform |
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| CN114715342B true CN114715342B (en) | 2023-08-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7444909B2 (en) | 2022-01-31 | 2024-03-06 | 太平電業株式会社 | Caisson and floating structure floats |
| CN115180081A (en) * | 2022-07-18 | 2022-10-14 | 中国华能集团清洁能源技术研究院有限公司 | Flexible connecting mechanism, floating type platform and offshore photovoltaic power station |
| CN116101440A (en) * | 2023-04-14 | 2023-05-12 | 广州睿海海洋科技有限公司 | Offshore platform for carrying marine equipment and offshore solar photovoltaic equipment |
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