10 results about "Moon pool" patented technology

The application belongs to the technical field of ships, and discloses an energy dissipation device, a moon pool and a ship. The energy dissipation device is arranged on the inner wall of the moon pool of the ship and comprises a buffer plate arranged in the vertical direction and parallel to the inner wall of the moon pool, a perforated plate arranged on the side of the buffer plate away from the inner wall of the moon pool and parallel to the buffer plate, a plurality of through holes for fluid passing being arranged on the perforated plate, each through hole penetrating the perforated plate in the direction perpendicular to the buffer plate, and a turbulence assembly arranged on the side of the buffer plate away from the perforated plate and used for guiding and dispersing the sloshing fluid in the moon pool. The perforated plate is used for dissipating the energy of the dispersed fluid, and the buffer plate is used for dissipating the energy of the fluid passing through the perforated plate. The energy dissipation device can effectively dissipate the energy generated by the fluid sloshing in the moon pool, suppresses the amplitude and impact force of the fluid sloshing, reduces the vibration and noise of the equipment, and improves the safety, stability and safety of the equipment.

The application relates to the technical field of ocean engineering equipment, and discloses a launching device of an underwater vehicle and a control method thereof. The launching device of the underwater vehicle comprises a first lifting group and a second lifting group. The first lifting group comprises a plurality of first pile legs which are arranged at intervals along a first direction, the first pile legs are slidingly arranged on one side wall of a moon pool along a vertical direction, and the lower ends of the first pile legs are rotationally provided with crosspieces. The second lifting group is arranged at intervals along a second direction with the first lifting group, the second lifting group comprises a plurality of second pile legs which are the same in number as the first pile legs, the second pile legs are arranged at intervals along the first direction, the second pile legs are slidingly arranged on the other side wall of the moon pool along the vertical direction, and the lower ends of the second pile legs are provided with supporting plates. One crosspiece can be lapped on one supporting plate, so that the plurality of crosspieces form a bearing surface capable of bearing the underwater vehicle. The launching device of the underwater vehicle is accurate in positioning, stable in operation, efficient and convenient, and can adapt to complex marine environments.

This application discloses an offshore floating semi-submersible platform and an offshore power generation system. The offshore floating semi-submersible platform provided by this application includes a platform body equipped with wind turbine components and photovoltaic components to achieve wind and solar complementary power generation. A heave assembly is provided below the platform body, which includes at least two different sizes of heave plates and forms at least two moon pool structures, which together constitute a damping coupling system. The differentiated heave plates provide a graded response to broadband waves, and the moon pool structure adds additional mass and radiation damping, thereby continuously consuming wave energy, significantly reducing the platform's heave response, and improving operational stability. The photovoltaic components include fixed photovoltaic panels and telescopic photovoltaic panels. The fixed photovoltaic panels are located on the top surface of the platform body, and the telescopic photovoltaic panels can switch between a retracted state and an extended state, effectively increasing the photovoltaic power generation area and improving power generation efficiency.

This invention relates to a dual-mode rocker-plate wave energy generation device and energy harvesting method based on a stepped moon pool. At least one moon pool is set within a square barge carrier. A rectangular step is set at the bottom of the moon pool, and a rocker-plate float is installed inside the cavity, with a rotating shaft passing through the center of the float. Slots perpendicular to the surface of the square barge carrier are respectively opened on two opposite side walls of the moon pool cavity. A piston rod is slidably connected within the slots, with one end of the piston rod rigidly connected to the end of the adjacent rotating shaft via a crank-connecting rod, and the other end connected to a hydraulic transmission power generation system. The rectangular step within the moon pool amplifies the wave response amplitude, causing the heave-roll dual-degree-of-freedom rocker-plate assembly to generate heave and roll motions. The rotating shaft converts the wave energy accumulated in the expanded moon pool into electrical energy through the hydraulic transmission power generation system. This invention achieves an organic unity of wave focusing effect, efficient energy harvesting, wide-frequency response, and structural durability, providing a reliable technical solution for the large-scale application of wave energy power generation technology.

The application discloses a water body profile observation buoy based on single-anchor mooring, which adopts a single-anchor mooring mechanism, and the main structure of the buoy is in a long circular shape; a profile operation cabin is arranged at one end of the long axis of the long circular main structure, and the profile operation cabin is used for water body profile observation; and the single-anchor mooring mechanism is arranged at the bottom of the other end of the long axis of the long circular main structure. The main structure of the buoy is composed of two half-disc structures which are symmetrically spliced from two ends of a box-shaped structure. The short axis length of the main structure of the buoy is at least 3 m. The profile operation cabin is provided with a moon pool, an instrument package and a winch device. The winch device comprises a winch, a pulley arranged on the top of the profile operation cabin and a cable for hanging the instrument package through the winch and the pulley, and is used for putting the instrument package into the water body to be observed through the moon pool and recovering the instrument package from the water body.

The present application relates to a kind of underwater blowout preventer transfer system of deepwater floating drilling platform, comprising: blowout preventer trolley, blowout preventer crane, hoisting and righting device and moon pool righting device, blowout preventer trolley is used to carry and fix blowout preventer group, and drive blowout preventer group along the left and right direction of hull movement;Blowout preventer crane is controlled using first electric control system, blowout preventer crane is used to lift blowout preventer group, and drive blowout preventer group between storage location and blowout preventer trolley transfer;Hoisting and righting device is controlled using second electric control system, hoisting and righting device is used to right blowout preventer trolley in the process that blowout preventer crane lifts blowout preventer group;Moon pool righting device is used to right blowout preventer group in the center area of moon pool wellhole.This application eliminates the risk of blowout preventer group and other equipment or moon pool collision by the dual action of moon pool righting device and hoisting and righting device, significantly improves the operation safety of transfer system, greatly extends the operation window period.

The application discloses a semi-submersible floating wind turbine foundation with moon pool structure, comprising a plurality of pontoons, the center of each pontoon is a hollow moon pool structure, the top of each pontoon is provided with a cover plate for closing the top of each moon pool structure and forming a closed air cabin above the moon pool; each pontoon is connected by a support structure to form a foundation platform. The application forms a closed air cabin above the moon pool, when the pontoon swings, the gas in one side of the air cabin is compressed to generate positive pressure, and the other side generates negative pressure to generate a restoring moment, so that the moon pool has its own characteristics, and the swing amplitude of the foundation platform is further reduced by the restoring moment. At the same time, by combining the vibration water column characteristics of the moon pool and the aerodynamic characteristics of the air cabin with the self structural dynamic characteristics of the semi-submersible wind turbine foundation, the suppression ability to low-frequency and high-frequency waves is enhanced, so that the widely applicable roll reduction effect is achieved, and the stability of the foundation platform is further improved.

The present application relates to a kind of riprap leveling boat and gravel bed leveling construction method, belong to bed leveling technical field.The riprap leveling boat includes hull and leveling device;Hull middle is opened with moon pool;Leveling device includes travelling car, travelling trolley and leveling actuator;Travelling car one end extends to moon pool outside, and travelling car is equipped with first turnover position and second turnover position;Wherein, leveling actuator is overturned by travelling trolley in first turnover position and second turnover position, to make leveling actuator convert between first working state, second working state and non-working state;When first working state, leveling actuator carries out leveling work to the bed in the moon pool surrounded range;When second working state, leveling actuator carries out leveling work to the bed outside the moon pool surrounded range;When non-working state, leveling actuator is overturned to the moon pool above.The riprap leveling boat, and leveling efficiency is higher, and widely applicable.

This invention relates to the field of drag reduction technology for moon pool engineering vessels, and particularly to a moon pool bottom sealing device and method; comprising: a baffle assembly, disposed at the bottom of the moon pool, for closing and opening the moon pool, including multiple baffles connected in series, with adjacent baffles hinged together; a drive assembly, including multiple first drive cylinders; and a locking assembly, disposed opposite to the drive assembly and fixed to the other side wall of the moon pool opposite to the drive assembly, wherein the locking assembly locks and limits the baffle assembly when the baffle assembly closes the moon pool; the moon pool bottom sealing device has a simple structure, occupies little space in the moon pool, and is low in cost. By using the first drive cylinders to drive the baffle assembly to close the moon pool, it reduces the drag of the moon pool vessel during navigation, saving costs; the baffle assembly can be vertically folded and stored on one side of the moon pool, making it easy to operate and possessing high promotion and practical value.