Please select the most similar patent number from A, B, C and D. Which number is?
Disclosed are a multi-anchor point mooring power installation anchor (1) and an installation method therefor, belonging to the technical field of ocean engineering. The multi-anchor point mooring power installation anchor (1) has a plurality of anchor eyes (103), can be simultaneously connected to a plurality of floating structures (10), and therefore, is very suitable for the fields of offshore wind turbines, marine pastures, offshore solar power generators, etc. arranged in groups or clusters. The design of the multi-anchor point mooring power installation anchor (1) helps to reduce or even eliminate the horizontal load acting on an anchor body (101), so that the load acting on the anchor body (101) is mainly vertical uplift load, optimizing the load mode of the anchor body (101) and helping to improve the bearing efficiency of the anchor body (101); and the design of normal wing plates (106) helps to reduce the resistance to a combined anchor (4). During the recovery of a booster (2), the normal wing plates (106) gradually extend out of the anchor body (101), increasing the normal load area of the multi-anchor point mooring power installation anchor (1), thereby significantly improving the bearing efficiency of the anchor. Therefore, the anchor has high installation efficiency, low cost, high bearing efficiency and good load mode, and can significantly reduce the installation cost of an anchoring foundation.
A: The present invention relates to the technical field of marine renewable energy application, and particularly relates to a deep sea energy integration system based on a floating fan and a tidal current energy apparatus, being of a power generation structure having fans with a Spar platform as a foundation and integrating vertical axis tidal current energy, and comprising a Spar floating type wind power generation system and a tidal current energy power generation system. The Spar floating type wind power generation system of the present invention is simple in structure and high in stability, is suitable for middle and far sea areas, and is simple and convenient to mount and wide in application water depth. By combining an offshore wind power generation apparatus with the tidal current energy power generation apparatus to share the Spar platform, an anchor mooring line, a voltage transformation device, and a power transmission device, the power generation performance of the system is improved, the total power generation capacity is increased, marine renewable energy sources are effectively utilized, the investment costs are reduced, and the commercial application is accelerated. An external support of the tidal current energy power generation system of the present invention is of a cylindrical shape, thereby reducing wave loads, utilizing the tide current energy to the maximum extent, and moreover, ensuring the stability of the structure.
B: A combined power anchor (100) having a folding anchor shank, comprising a plate-shaped anchor (1) having a folding anchor shank, a counterweight shaft (2), an extension rod (4), tail wings (5) and a recovery hole (6) in sequence from bottom to top. The plate-shaped anchor (1) is mainly composed of a wing plate (11), an anchor shank (12), a support (13) and a connecting rod (17); the counterweight shaft (2) is mainly composed of a semi-ellipsoidal front end (22), a cylindrical middle connecting section (21) and a truncated cone-shaped tapered tail end (23); the extension rod (4) is a cylindrical rod, and the cross-sectional dimension thereof is consistent with the minimum cross-sectional dimension of the tapered tail end of the counterweight shaft (2); the tail wings (5) are installed on the extension rod (4) near the tail end, and is located below the recovery hole (6); and the tail wings (5) include plate-shaped tail wings (5a) and arc-shaped tail wings (5b). The central axes of the plate-shaped anchor (1), the counterweight shaft (2) and the extension rod (4) of the folding anchor shrank are collinear. Further comprised is a method for controlling perpendicularity of the combined power anchor having the folding anchor shank during dropping in water. The present invention can increase the installation success rate of power anchors, and reduce the installation cost.
C: A method and semisubmersible equipment for electricity generation with marine energy. The method is implemented by means of a separately constructed offshore platform or based on an existing offshore platform. Electricity generating equipment and an impeller (8) mechanically connected to the electricity generating equipment are mounted on the platform. Blades (12) of the impeller (8) are arranged perpendicular to the direction of a fluid flow along the water surface. The upper part of the impeller (8) is arranged above the sea surface; the lower part is submerged in seawater. The ocean pushes the impeller (8) to rotate, thereby driving the electricity generating equipment to generate electricity. When the blades (12) are rotating in the circumferential direction, the blades (12) underwater continuously work under a fluid thrust, and the blades (12) in the air are free from the effects of fluid impact resistance even while moving in the direction opposite that of the fluid flow, thus greatly reducing power loss, and increasing electricity generation efficiency. In addition, the rotation of the impeller (8) and the structural design of the blades (12) increase the thrust applied to a main shaft of the impeller (8), reduce water energy loss, and increase ocean energy conversion efficiency. Moreover, a housing (11) sleeved on the impeller (8) allows the screening of ocean winds of different directions and the reasonable utilization of the thrust of a same-direction wind to increase the electricity generating capacity of the electricity generating equipment.
D: Provided is a protective device (100) for an offshore wind power base submarine cable, the protective device comprising: a connecting flange (101), an intermediate tube body (102), a tapered connecting tube (103), and a connector (104). The protective device (100) for the offshore wind power base submarine cable has a simple overall structure and does not need segmented mould making during manufacturing so the production cost is reduced. During installation and use, the length of the intermediate tube body (102) can be increased or decreased according to actual requirements, the overall installation is easy and the assembly work of the protective device (100) for the offshore wind power base submarine cable can be completed quickly and efficiently, thereby increasing the installation efficiency in actual use and reducing the duration and workload related to the installation work. Moreover, the protective device may be connected to a cable conduit on a wind power generator via the connecting flange (101) so as to achieve the protection of an output cable (300) of the wind power generator.
Answer: B