Please select the most similar patent number from A, B, C and D. Which number is?
A floating power plant and a bearing apparatus thereof. The bearing apparatus comprises support assemblies and operation/maintenance passages composed of a plurality of operation/maintenance floating bodies (3) arranged in sequence. Two adjacent operation/maintenance passages are connected by the support assemblies, the support assemblies are provided with electrical device installation positions (1-1) for installing electrical devices, and the electrical devices are installed at the electrical device installation positions (1-1) of the support assemblies. The installation of electrical devices is not affected by the distance between two adjacent operation/maintenance passages, thereby improving the versatility of the bearing apparatus.
A: Disclosed is a multifunctional module-type light, comprising a light-emitting module (1) and a supporting assembly (2). The light-emitting module (1) is composed of at least one LED module (10), and a plurality of the LED modules (10) are connected via a connecting assembly (3). The supporting assembly (2) comprises a supporting frame (21) and a positioning assembly (22), wherein the supporting frame (21) is installed on the light-emitting module (1) in the manner that the angle thereof is adjustable via the positioning assembly (22), and the supporting frame (21) has installation feet (211) for connecting the light-emitting module (1) and a supporting surface (212) for connecting the two installation feet (211). The supporting surface (212) is a flat surface or an inclined surface, and the light-emitting module (1) is secured on the flat surface via the supporting surface (212). Such multifunctional module-type light uses a modularized designed unit structure, which breaks the power constraints that a conventional lamp has only a single-housing. The light-emitting module (1) can be formed by connecting a plurality of the independent LED modules (10) via the connecting assembly (3), and a suitable number of the LED modules (10) can be chosen according to the requirements of the outdoor environment so as to adapt to different environments. The supporting frame (21) is installed on the light-emitting module (1) in the manner that the angle thereof is adjustable, and the illuminating range can be adjusted according to different using requirements to meet different using demands.
B: A floating unit and a waterborne pipeline supporting system consisting of floating units. The floating unit comprises a floating body (1), a supporting body (2), and a ballasting device. The floating unit descends or ascends by installing or removing a load. When the floating body (1) suspends underwater, the supporting body (2) is at least partially exposed and kept above the water surface. The pipeline supporting system comprises a plurality of floating units that are sequentially arranged at intervals in water. A connector for mounting or erecting a pipeline is arranged on the upper end of a supporting rod. The floating body (1) is fixed to the water bottom by a cable (4), and the cable (4) is straightened and subjected to an upward pulling force. A power transmission line (7) or a gas transmission pipeline (8) is erected on the upper end of the supporting rod so as to transmit electric energy and gas produced offshore to the mainland. The floating body suspends below the sea surface and is less affected by wind waves, thereby having the ability of resisting severe sea conditions.
C: Provided is a fuel assembly transport container, comprising an outer housing (1) and a support structure (2) arranged in the outer housing (1); the outer housing (1) comprises a lower housing (11) and an upper housing (12) mounted on the upper side of the lower housing (11); the side walls of the lower housing (11) and the upper housing (12) are double-layered structures having hollow interlayers; the support structure (2) comprises a support frame (21) mounted inside the outer housing (1) and a support assembly (22) mounted on the support frame (21); an accommodating chamber (4) is formed in the support assembly (22) to accommodate and secure the fuel assembly (3); an end of the support assembly (22) is provided with a loading/unloading port (221), and when the support assembly (22) is stood upright, the loading/unloading port (221) is located at the upper end of the accommodating chamber (4); a lower end cover (225) positioned circumferentially with respect to the fuel assembly (3) is provided at the end of the accommodating chamber (4) opposite to the loading/unloading port (221); an upper end cover (222) which sealingly covers the accommodating chamber (4) and axially positions the fuel assembly (3) in the accommodating chamber (4) is mounted on the loading/unloading port (221). The outer housing (1) is made of double-layer stainless steel and has the advantages of corrosion resistance and higher structural strength; the outer housing (1) double-layer structure is filled with heat-insulating, shock-absorbing material, and has good thermal insulation and shock absorption performance; the invention improves the safety and stability of transportation.
D: Disclosed is a yarn spool storage rack for use in textiles, the rack comprising a rack body, wherein the rack body comprises a bottom plate, a side plate, a central column and a shielding plate; a support assembly is adjustably mounted on the central column; a U-shaped connecting rod is arranged on a rear side of the support assembly; two bearing frames are symmetrically arranged on left and right sides of the support assembly; opposite ends of the two bearing frames are provided with limiting assemblies; and the limiting assemblies are fixedly connected to the U-shaped connecting rod. The support assembly of the present invention supports the bearing frames, and ensures stable storage and placement of yarn spools. The position of the support assembly on the central column can be adjusted so that spacing between two adjacent support assemblies can be adjusted according to the actual height of the yarn spools. The bearing frames can rotate towards the front side to totally expose the yarn spools on the bearing frames so as to facilitate taking and placing the yarn spools. In addition, when the bearing frames do not rotate, the bearing frames can be limited and fixed by means of the limiting assemblies at end parts, which ensures firmness of the bearing frames and improves overall structural strength and safety performance of the storage rack.
Answer: B