Wave power generation device and method for operating and maintaining the same

Patent metadata

Field	Value
Publication number	US-9902467-B2
Application number	US-201615227928-A
Country	US
Kind code	B2
Filing date	Aug 3, 2016
Priority date	Aug 14, 2015
Publication date	Feb 27, 2018
Grant date	Feb 27, 2018

Abstract

A wave power generation device, including a power generation assembly, a mooring system, a floating platform, floating towers, control cabins, a connecting member, and anti-sway plates. The floating platform is a square floating box. The power generation assembly includes a swing plate, a hydraulic cylinder, an energy accumulator, a hydraulic motor, a generator, a battery, and a power generation and distribution device. The floating platform includes a main deck. The main deck includes a manhole and a support for supporting the swing plate. The swing plate is connected to the support via a first hinge. One end of the hydraulic cylinder is connected to the swing plate, and another end of the hydraulic cylinder is connected to a floating platform. The mooring system includes four anchor windlasses. A method for operating and maintaining the wave power generation device is also provided.

First claim

The invention claimed is:

1. A wave power generation device, comprising:
a power generation assembly, the power generation assembly comprising a swing plate, a hydraulic cylinder, an energy accumulator, a hydraulic motor, a generator, a battery, and a power generation and distribution device;
a mooring system, the mooring system comprising anchor windlasses;
a floating platform, the floating platform comprising a main deck; the main deck comprising a manhole and a support for supporting the swing plate of the power generation assembly;
floating towers;
control cabins, the control cabins being disposed on tops of the floating towers, respectively, and each control cabin comprising a control unit;
a connecting member; and
anti-sway plates;

wherein:
the floating platform is a square floating box;
the swing plate is connected to the support via a first hinge;
one end of the hydraulic cylinder is connected to the swing plate via a second hinge;
the energy accumulator, the hydraulic motor, the generator, the battery, and the power generation and distribution device are disposed in the floating platform;
the swing plate is configured to drive the hydraulic cylinder which is connected to the energy accumulator via a first pipe; the energy accumulator is adapted to receive pressure from the hydraulic cylinder and is connected to the hydraulic motor via a second pipe; in operation, the generator is driven by the hydraulic motor and generates electricity; the generator is electrically connected to the battery and transmits electricity to the power generation and distribution device via a transmission cable;
the floating towers have an elliptic cylindrical structure, and the anti-sway plates are disposed on an outer side of the floating towers, respectively; the floating towers are symmetrically disposed around a center of the floating platform; the floating towers are fixedly connected to the floating platform via the connecting member;
the anchor windlasses are disposed in the floating towers respectively, and the anchor windlasses are connected to gravity anchors via anchor chains, respectively; and
the connecting member is a truss structure, and comprises a plurality of longitudinal rods, transverse rods, and diagonal rods; cross sections of the longitudinal rods, the transverse rods, and the diagonal rods are circular, and a joint of the diagonal rods is a spherical structure.

2. The device of claim 1 , wherein one end of the hydraulic cylinder is connected to the swing plate via the second hinge, and another end of the hydraulic cylinder is connected to the floating platform via a third hinge or to the longitudinal rods of the truss structure via a fourth hinge.

3. A wave power generation device, comprising:
a power generation assembly, the power generation assembly comprising a swing plate, a hydraulic cylinder, an energy accumulator, a hydraulic motor, a generator, a battery, and a power generation and distribution device;
a mooring system, the mooring system comprising anchor windlasses;
a floating platform, the floating platform comprising a main deck; the main deck comprising a manhole and a support for supporting the swing plate of the power generation assembly;
floating towers;
control cabins, the control cabins being disposed on tops of the floating towers, respectively, and each control cabin comprising a control unit;
a connecting member; and
anti-sway plates;

wherein:
the floating platform is a square floating box;
the swing plate is connected to the support via a first hinge;
one end of the hydraulic cylinder is connected to the swing plate via a second hinge;
the energy accumulator, the hydraulic motor, the generator, the battery, and the power generation and distribution device are disposed in the floating Platform;
the swing plate is configured to drive the hydraulic cylinder which is connected to the energy accumulator via a first pipe; the energy accumulator is adapted to receive pressure from the hydraulic cylinder and is connected to the hydraulic motor via a second pipe; in operation, the generator is driven by the hydraulic motor and generates electricity; the generator is electrically connected to the battery and transmits electricity to the power generation and distribution device via a transmission cable;
the floating towers have an elliptic cylindrical structure, and the anti-sway plates are disposed on an outer side of the floating towers, respectively; the floating towers are symmetrically disposed around a center of the floating platform; the floating towers are fixedly connected to the floating platform via the connecting member;
the anchor windlasses are disposed in the floating towers respectively, and the anchor windlasses are connected to gravity anchors via anchor chains, respectively; and
the floating towers each comprise a pump room, a windlass room, a chain locker, and a ballast tank; the pump room and the windlass room are disposed above a safety deck, and the anti-sway plates are disposed on an underwater part of the floating towers and face waves; each floating tower comprises a first diagonal bracing which is disposed between the floating tower and the connecting member.

4. The device of claim 3 , wherein the chain locker comprises a hawse pipe comprising an upper mouth and a lower mouth; the upper mouth of the hawse pipe is disposed on a bottom of the windlass room, and the lower mouth of the hawse pipe is disposed on a lower part of an outer wall of the floating towers; the anchor chains pass through the hawse pipe and are connect to the anchor windlasses in the windlass room.

5. A wave power generation device, comprising:
a power generation assembly, the power generation assembly comprising a swing plate, a hydraulic cylinder, an energy accumulator, a hydraulic motor, a generator, a battery, and a power generation and distribution device;
a mooring system, the mooring system comprising anchor windlasses;
a floating platform, the floating platform comprising a main deck; the main deck comprising a manhole and a support for supporting the swing plate of the power generation assembly;
floating towers;
control cabins, the control cabins being disposed on tops of the floating towers, respectively, and each control cabin comprising a control unit;
a connecting member; and
anti-sway plates;

wherein:
the floating platform is a square floating box;
the swing plate is connected to the support via a first hinge;
one end of the hydraulic cylinder is connected to the swing plate via a second hinge;
the energy accumulator, the hydraulic motor, the generator, the battery, and the power generation and distribution device are disposed in the floating platform;
the swing plate is configured to drive the hydraulic cylinder which is connected to the energy accumulator via a first pipe; the energy accumulator is adapted to receive pressure from the hydraulic cylinder and is connected to the hydraulic motor via a second pipe; in operation, the generator is driven by the hydraulic motor and generates electricity; the generator is electrically connected to the battery and transmits electricity to the power generation and distribution device via a transmission cable;
the floating towers have an elliptic cylindrical structure, and the anti-sway plates are disposed on an outer side of the floating towers, respectively; the floating towers are symmetrically disposed around a center of the floating platform; the floating towers are fixedly connected to the floating platform via the connecting member;
the anchor windlasses are disposed in the floating towers respectively, and the anchor windlasses are connected to gravity anchors via anchor chains, respectively; and
the connecting member is a box bridge structure; each floating to

Assignees

• Univ Dalian Tech
• Lin Yan

Inventors

• Lin Yan
• Jiang Xiaoning
• Yu Yanyun
• Zhang Zhikang
• Pei Fei

Classifications

• B63B21/50 Primary

  Anchoring arrangements {or methods} for special vessels, e.g. for floating drilling platforms or dredgers · CPC title

• F03B13/16

  using the relative movement between a wave-operated member, {i.e. a "wom"} and another member, {i.e. a reaction member or "rem"} · CPC title

• B63B2035/4466

  for converting water energy into electric energy, e.g. from tidal flows, waves or currents · CPC title

• F15B2211/7135

  Combinations of output members of different types, e.g. single-acting cylinders with rotary motors · CPC title

• F15B1/04

  Accumulators · CPC title