63results about How to "Reduce wave loads" patented technology

The invention provides an offshore solar energy, wind energy and wave energy complementary power generation device. The offshore solar energy, wind energy and wave energy complementary power generation device comprises a wave energy capturing device, a wind energy capturing device, a hydraulic transmission system, a solar photovoltaic panel, a power conversion system, a floating platform upper-layer deck, a floating platform lower-layer deck, a supporting column, an underwater buoyancy tank and a mooring system. The hydraulic transmission system is composed of a wave energy conversion hydraulic subsystem and a fan hydraulic subsystem. The wave energy capturing device and the wind energy capturing device are connected with the two subsystems correspondingly to drive a generator to generatepower, and are combined with electric energy generated by the solar photovoltaic panel through the power conversion system to form a microgrid, and the electric energy is stored in an energy storage device or directly supplied to a user. Main oil ways of the wave energy conversion hydraulic subsystem and the fan hydraulic subsystem are connected through communicating pipelines, and connection anddisconnection of the two main oil ways are controlled through a cartridge valve. When resources are good, the two subsystems operate independently; and when the resources are poor, the two subsystemsoperate in a complementary mode to drive the generator to generate power.

The invention discloses breakwater units and breakwater system which can achieve wave elimination under normal sea conditions and can sink or float in extreme sea conditions. The breakwater system comprises the plurality of breakwater units. Each breakwater unit is composed of a floating body part and an underwater part, wherein the floating body part is composed of a sealing empty box on the upper layer, a ballast water tank on the middle layer and an air bag box on the bottom layer, and the sealing empty box, the ballast water tank and the air bag box are fixedly connected; the ballast watertank on the middle layer is a hollow inclosed cavity, the ballast water tank is provided with a water drain valve and a water inlet valve, and the water drain valve and the water inlet valve are connected to an external buoy I through a connecting pipe; and at least one air bag fills the air bag box on the middle layer, the air bag is provided with an air inlet valve and an air vent valve, the air inlet valve and the air vent valve are connected to an external buoy II through a connecting pipe, the underwater part is composed of rigid supports and suspended tires, and the rigid supports are arranged in parallel. The breakwater units and the breakwater system can not only reasonably avoid extreme sea conditions and reduce the cost of a mooring system, but also meet the requirements of waveresistance and elimination in normal working conditions. The breakwater units and the breakwater system have the characteristics of low cost and environmental friendliness.

The invention discloses an offshore wind turbine integral transportation and installation ship which mainly comprises a multi-hull ship body and a fan transportation and installation tower, a motion compensation hoop is arranged on the fan transportation and installation tower; an opening for mounting a fan is formed in a deck at the middle rear part of the ship; the fan transportation and installation tower is a rotatable single-column mast type fan transportation and installation tower and is installed on the front edge of an opening in a triple-hulled vessel body main deck. The motion compensation hoop is arranged on the fan transportation and installation tower; in the installation process of the fan, six-freedom-degree motion compensation can be provided for the bottom of the fan, twofans of the fan transportation and installation tower shuttle back and forth between a wind power plant and a land wharf, overall transportation and offshore installation of the fan can be achieved,the transportation and installation process is rapid, efficient and safe, the development period of the wind power plant is shortened, and offshore operation cost is reduced; the integral transportation and installation ship for the offshore wind turbine can also be used for transportation and installation of a wind turbine foundation, disassembly of the offshore wind turbine and the like.

The invention discloses a wave dissipation terminal of a wave dissipation plate. The wave dissipation terminal of the wave dissipation plate comprises a head portion, a first elastic piece and an installing block, wherein one end of the first elastic piece is connected with one side of the head portion, the other end of the first elastic piece is connected with the installing block, and the outside of the head portion protrudes outwards. The wave dissipation terminal can effectively dissipate the energy of a wave, the wave after being dissipated reduces the wave loading exerted on an object where the wave dissipation terminal is installed, and therefore the impact and the damage on the object where the wave dissipation terminal is installed are reduced to a great extent. The wave dissipation terminal is simple in structure, capable of achieving modular production, low in production cost, convenient to assemble and disassemble, capable of changing an arrangement mode according to specific needs, capable of being recycled and capable of being widely applied to water conservancy projects of large-scale water bodies like oceans, lakes, reservoirs and rivers. The invention further discloses the wave dissipation plate provided with the wave dissipation terminal. In addition, the invention further discloses a breakwater provided with the wave dissipation plate.

The invention discloses a self-stabilized multi-column offshore floating wind power Spar platform. The self-stabilized multi-column offshore floating wind power Spar platform is characterized by comprising a central column and a wind turbine arranged at the upper end face of the central column, the lower end face of the central column is provided with a center stand column, the diameter of the center stand column is greater than that of the central column, the periphery of the center stand column is provided with a plurality of side stand columns, the side stand columns fit the center stand column, the lower end of the center stand column is provided with a damping plate, the damping plate is arranged horizontally, the center stand column is connected with a mooring system, the center stand column and the side stand columns are provided with a plurality of compartments respectively, the lowest compartment of the same center stand column or side stand column is a fixed ballast compartment, and the compartment, located above the fixed ballast compartment, of the same center stand column or side stand column is a ballast adjustment compartment. The self-stabilized multi-column offshore floating wind power Spar platform has the advantages that the requirement for the water depth can be effectively reduced, and the application range is increased.

The invention provides a floating type wind power generation platform. The floating type wind power generation platform comprises a floating type foundation and a fan unit. The floating foundation comprises three buoyancy units, three truss units and a fan base arranged on one or two of the buoyancy units. Each buoyancy unit comprises a stand column and a swash deep cabin fixed to the bottom of the stand column. Ballast tanks are arranged in the stand column and the swash deep tank; the section size of the top of the stand column is larger than that of the bottom of the stand column, and any first position and any second position located above the first position in the height direction of the stand column meet the conditions that the section size of the stand column at the second positionis larger than or equal to that of the first position; the swash deep cabin is used as a vertical damping structure; the section size of the swash deep cabin is larger than that of the stand column. The draught fan unit is installed on the draught fan base, and the height of the swash deep cabin of the buoyancy unit where the draught fan unit is located is larger than that of the swash deep cabinof the buoyancy unit where the draught fan unit is not arranged. The wind power generation device has good movement performance, and the power generation efficiency is improved.

The invention discloses a large on-water floating structure which comprises multiple lower-portion floating bodies, upper-portion structures and middle connecting structures. Each lower-portion floating body comprises multiple dispersedly arranged strip-shaped floating bodies, the floating bodies are spaced for a certain distance, the sum of water discharging volumes of the floating bodies is greater than that of the floating structure in a whole full-load state. Each middle connecting structure at least comprises multiple connecting structures in the first direction, the first direction is intersected with a horizontal plane, the single strip-shaped floating bodies corresponding to the connecting structures in the first direction are connected with three or more mutually spaced structures, and the cross section widths of the middle connecting structures in the horizontal direction are smaller than the widths of the corresponding strip-shaped floating bodies. The on-water floating structure is wholly in an ultra-flat shape. The large on-water floating structure has a wave height nonlinear response characteristic, can reduce wave load, can achieve ultra large scale, has excellent wave resistance, has structural integrity and stable height redundancy and has the characteristics of no disassembly and no capsizing and sinking under the accident conditions such as collision, reef striking and stranding, and the safety of the floating structure and the life safety of persons on the structure can be ensured.

The invention provides a multi-floater wave energy driven power generation device based on a modular truss platform, belongs to the field of wave energy driven power generation and ocean engineering equipment and solves the technical problems that the energy utilization efficiency of a unit-area sea area is low, the construction cost of a unit-capacity generator set is high, floaters are shieldedmutually, and the wave permeation property of the platform is poor, of an existing oscillating floater type wave energy driven power generation device. The multi-floater wave energy driven power generation device is characterized in that the truss platform is of a regular polygonal structure and provides a bearing platform for the overall power generation device; a plurality of floating blocks areinstalled on the side surface of the truss platform and are used for providing floating force for the overall power generation device; a plurality of floaters are uniformly distributed surrounding the truss platform in a planetary form and are connected with the truss platform by adopting connecting rods; hydraulic transmission devices are correspondingly connected with the connecting rods; a generator set is placed on an upper deck of the truss platform; all floaters share one generator set for generating power; and a mooring system is used for positioning the overall power generation device. The multi-floater wave energy driven power generation device provided by the invention is especially applicable to power supply of offshore equipment, islands and the like.

The invention provides perforated floating breakwater units and circular-arc-shaped multilayer perforated floating breakwaters. The perforated floating breakwater units comprise perforated floating breakwater unit base bodies, and through penetrating holes are formed in the floating breakwater unit base bodies. All the perforated floating breakwater units are connected through connecting chains toform the circular-arc-shaped perforated floating breakwaters, the two or more layers of circular-arc-shaped perforated floating breakwaters are arranged outside a protected body, all the layers of circular-arc-shaped perforated floating breakwaters are arranged in a staggered mode, and intervals are reserved among all the layers of circular-arc-shaped perforated floating breakwaters. The circular-arc-shaped arrangement mode is adopted, and thus the good wave absorbing effect on long peak waves and multidirectional short peak waves is achieved; the total length of the breakwaters is decreased,and the breakwaters has good adaptability to islands of various contour shapes; the multilayer staggered arrangement mode is adopted, thus the wave absorbing effect of the breakwaters is further enhanced, and the high reliability under the extreme sea conditions is still achieved; and through the perforated structures, energy dissipation of the waves can be greatly enhanced, and the wave loads borne by the floating breakwaters are reduced.

The invention discloses a truss inhaul cable type floating offshore wind turbine generator structure. The structure comprises ballast tanks arranged in a triangular shape, mooring systems are fixedlyconnected to all corners of the ballast tanks, truss type structures are fixedly connected to the upper portions of the ballast tanks through first stay cables, and the truss type structures are connected through transverse inhaul cables; and a mounting platform is fixedly connected to a certain elevation above the truss type structures through a plurality of inclined struts, the upper surface ofthe mounting platform is fixedly connected with the bottom end of a fan tower, and a fan is fixedly connected to the top end of the fan tower. By means of the special truss structure types, the wave load borne by the structure near a water plane is reduced, the requirement of the structure for restoring force is lowered, then the appearance size of the structure is reduced, and the steel consumption is reduced; and by means of the special inhaul cable design, the steel consumption of the fan tower at the upper portion is effectively reduced, the design of lower floating body connecting transverse supports and connecting inclined supports is effectively omitted, the dead weight is reduced, and the construction cost is saved.

The invention provides an ice-breaking and wave-eliminating composite device for an offshore wind power pile-type foundation. The ice-breaking and wave-eliminating composite device is installed on a vertical steel pipe pile, and an upper annular plate and a lower annular plate are arranged on the outer wall of the steel pipe pile in the circumferential direction. The ice-breaking and wave-eliminating composite device comprises an ice-breaking cone, a plurality of ice-breaking blades and a sleeve, the ice-breaking cone is in an annular shape, a plurality of wave-eliminating holes are formed inthe ice-breaking blades , all the ice-breaking blades are vertically fixed to the ice-breaking cone at intervals, the ice-breaking cone sleeves the outer wall of the sleeve, the sleeve sleeves the outer side of the steel pipe pile, and is located between the upper annular plate and the lower annular plate and slidably connected with the steel pipe pile; a plurality of first telescopic springs arearranged at the top of the sleeve in the circumferential direction, and a plurality of second telescopic springs are arranged at the bottom of the sleeve in the circumferential direction. The ice-breaking and wave-eliminating composite device has the beneficial effects that the structure is simple, the cone volume is small, the vertical height is less than the difference between the average high tide level and the average low tide level in the sea area where the device is located, the self-adaption change with the tide level can be achieved, and the ice load during the ice period and the waveload during the ice-free period are effectively reduced.

The invention provides an offshore wind power foundation, an installation method thereof and a wind generating set. The offshore wind power foundation comprises the following parts: a floating box, wherein a cavity is formed in the floating box, and a through hole communicating with the cavity is formed in the upper surface of the floating box; a suction cylinder, which is arranged on the lower surface of the floating box; and a jacket, which is arranged on the upper surface of the floating box. According to the offshore wind power foundation, the self-floating capacity can be achieved, self-installation can be achieved, the installation time can be saved, and the wave load can be reduced.

The invention discloses a flexible assembly type offshore photovoltaic power generation and aquaculture net cage comprehensive development platform, and relates to the field of offshore photovoltaic power generation structure design and offshore net cage culture. The platform comprises photovoltaic units, mooring units and net cage units, and the mooring units are arranged on the outermost side of the whole structure array and surround the whole structure. The photovoltaic units are arranged in a ring defined by the mooring units, and the net cage units are distributed in the photovoltaic units or arranged on the ring defined by the mooring units. According to the platform, the photovoltaic units are of an array structure formed by splicing small units, the units are connected through double-hinge connectors, and the platform structure has high wind wave resistance, can achieve comprehensive development and utilization of offshore photovoltaic power generation and offshore net cage culture, has a certain wave dissipation capacity, and has the advantages of being easy and convenient to construct, convenient and fast to maintain and the like.

The invention provides a semisubmersible octagonal prism-shaped floating type nuclear power station carrier platform and belongs to the technical field of nuclear power. The semisubmersible octagonal prism-shaped floating type nuclear power station carrier platform comprises an upper ship body, a lower floating body and an upright. The upper ship body and the lower floating body are connected through the upright and are both in an octagonal prism shape, the lower floating body is of a double layer structure, so that the safety is improved. A core component bin is arranged in the middle of an inner cavity of the lower floating body, double layer protection is arranged, persistence and safety of running are ensured, and the radiation prevention ability is higher. The lower floating body and the upper ship body are divided into a plurality of bins, the arrangement space is increased effectively, and arrangement is convenient. A permanent ballast tank and a pressure water tank are arranged between a double layer ship bottom and a double layer bottom structure, the severe weather resistance is improved, adaptability is higher, and the operation time is prolonged effectively. Four sets of mooring systems are arranged, every two adjacent groups are arranged at 90 degrees, and the mooring stability is higher.

The invention relates to a pile-shoe-shaped semi-submersible type at-sea wind power platform. The platform comprises an at-sea floating wind generator unit, a unit supporting vertical post, outer vertical posts, transverse supporting structures and outer vertical post pile-shoes, wherein the three outer vertical posts are positioned in three top points of an equilateral triangle, the unit supporting vertical post is located at the central position of the equilateral triangle, and the at-sea floating wind generator unit is mounted above the unit supporting vertical post. The bottoms of the three outer vertical posts are provided with the outer vertical post pile-shoes, and no connection exists between the three outer vertical posts. The portions between the three outer vertical posts and the unit supporting vertical post are connected through the transverse supporting structures so as to form a stable semi-submersible type at-sea wind power platform structure. The pile-shoe-shaped semi-submersible type at-sea wind power platform has the advantages of being better in stability and motion performance, light in weight, low in cost, low in manufacturing difficulties and the like.

The invention belongs to the technical field of sea renewable energy source utilization, and discloses a four-pile fixed type wind energy-wave energy integrated power generation system based on suction barrels. The integrated system integrating a wind energy system and a vibration water column type wave energy system is built through a four-pile type supporting structure, and the wind energy system and the vibration water column type wave energy system share the supporting structure and a power transmission system. Sea renewable resources can be fully utilized, and therefore the aims of increasing the utilization rate of a four-pile foundation and reducing the total cost are achieved, the overall economical efficiency of an offshore wind plant is improved, and the application of the systemto the industry can be pushed effectively. According to the four-pile fixed type wind energy-wave energy integrated power generation system based on the suction barrels, the effective utilization rate of the sea area is improved, the building cost and the maintenance cost are reduced, the existing mature fan technology is fully utilized, commercial application of a wave energy device is promoted,and the system is a reliable sea renewable energy power generation platform.

The invention discloses a floating type wind turbine foundation mooring device and a mounting method. The device comprises a plurality of mooring ropes, the first end of each mooring rope is connectedwith a floating type wind turbine foundation, and the second end of each mooring rope is connected with an anchoring point; each mooring rope comprises a first mooring rope section and a second mooring rope section, the first end of the first mooring rope section is connected with the floating type wind turbine foundation, the second end of the first mooring rope section is connected with the first end of the second mooring rope section, and the second end of the second mooring rope section is connected with the anchoring point; and the second mooring rope section comprises a first sub-mooring rope section, a second sub-mooring rope section and a plurality of gravity block chains, and the gravity block chains are arranged between the first sub-mooring rope section and the second sub-mooring rope section at intervals. The device has the advantages that the mooring radius and the using amount of mooring ropes are reduced, and the cost is reduced.

The invention relates to a device in the technical field of floating wind power generation, and concretely relates to a floating wind power platform suitable for a near-shore shallow water area. The platform comprises a wind rod 1, a buoy 2, a disc 3 and a ballast 4, the wind rod 1 is connected with one end of the buoy 2, the disc 3 is connected with the other end of the buoy 2, the disc 3 and thebuoy 2 form a main floating body of the platform, and the disc 3 is connected with the ballast 4 and arranged above the ballast 4. The platform is simple in structure, the deepwater construction difficulty is greatly reduced, the utilization rate of renewable energy sources on the sea is increased, and certain reference can be provided for follow-up specific engineering practice.

The invention discloses a lifting type aquaculture net cage suitable for offshore wind power generation. The lifting type aquaculture net cage comprises a ship body, wherein a water pump and an air pump are arranged on the ship body, the lifting type aquaculture net cage further comprises a net cage body, a plurality of floating ball mechanisms are arranged on the outer side of the net cage body in the circumferential direction, a wave height meter and an ocean current meter are further fixed to the outer side of the net cage body, a plurality of first openings capable of being opened and closed are formed in the floating ball mechanisms, the first openings in the floating ball mechanisms are connected with the water pump and the air pump through pipelines respectively, stand columns are arranged in the net cage body, the floating ball mechanisms are connected with the stand columns, and wind power devices are arranged at the top ends of the stand columns. With application of two operation modes, the wave load borne by the net cage body on the water surface is relatively small, the culture space is a water body surrounded by the net cage under the water surface, the hemispherical culture space is guaranteed when the lifting type aquaculture net cage floats upwards or dives downwards, the stress of the whole system of the net cage is relatively small, in addition, when the lifting type aquaculture net cage floats upwards or dives downwards, at least a symmetrical hemispherical culture space is ensured, the stress of the whole system of the net cage is relatively small, and the safety of the net cage is ensured.

The invention belongs to the technical field of ocean and provides a holing caisson permeable breakwater with holing slope baffles designed in energy dissipation chambers. The holing caisson permeablebreakwater comprises a caisson and a wave stop wall. Holing partition walls are arranged in the caisson, so that a plurality of divisions are formed. The outer wall of the upper portion of the caisson is provided with caisson holes, the divisions obtained after holing of the caisson serve as the energy dissipation chambers, and other divisions of the caisson except the energy dissipation chambersare filled with sand. The holing slope baffles are arranged in the energy dissipation chambers. The wave stop wall is arranged on the tops of the energy dissipation chambers. According to the permeable breakwater, kinetic energy of waves is utilized to dissipate energy, wave loads borne by the structure are reduced, secondary reflection of the waves in a harbor is reduced, and the wave height behind the breakwater is reduced; the upper portions are holed and permeable, water bodies inside and outside the harbor can be exchanged, and the breakwater is environmentally friendly to zoology; the lower portion is impermeable, and silt can be stopped from entering the harbor; and the structure gravity center is low, and the stability of the breakwater is improved.