CN102269103A

CN102269103A - Wave energy power generation device for crankshaft buoy

Info

Publication number: CN102269103A
Application number: CN2010101887461A
Authority: CN
Inventors: 王世明; 吴爱平; 李成龙; 李永乐; 王芳
Original assignee: Shanghai Maritime University
Current assignee: Shanghai Maritime University
Priority date: 2010-06-01
Filing date: 2010-06-01
Publication date: 2011-12-07

Abstract

The invention relates to a wave energy power generation device for a crankshaft buoy. The device is mainly used for the supply of large and medium buoy electric quantity, and can also be used for the electric quantity supply of light houses, ships and the like; and the device comprises a power generator, a slide bearing, a crankshaft, a connecting rod, a floater and the like, has a simple structure, and is convenient to connect and dismount. The wave energy power generation device for the crankshaft buoy provided by the invention converts the kinetic energy and potential energy of waves into the relative up and down movements of two floaters, thus a crank shaft is driven to rotate, further the power generator is driven to rotate and operate to generate electricity, and the power generation device can generate electricity stably under various wind conditions.

Description

Curved shaft type buoy wave energy generating set

Technical field

The present invention is used for marine energy and utilizes technical field, is mainly used in the supply of medium-and-large-sized buoy electric weight, also can be used for the electric weight supply of beacon and boats and ships etc.

Background technique

Along with the minimizing of nonrenewable resources storages such as oil, coal, the energy more and more becomes the key of restriction various countries' economic development, and ocean wave energy is subject to people's attention day by day as a kind of inexhaustible, nexhaustible renewable resources.Ocean wave energy is as a kind of renewable energy sources of cleanliness without any pollution, and success and the high efficiency wave energy that utilizes are done the fixed point mark and are the main purposes that various countries develop small-sized wave energy generating set for marine military installations provide electric power for marine navigation, for marine scientific research.

Present stage, the wave-energy power generation The Application of Technology also mainly concentrated on seashore or the island, in also not developing into, the deep-sea, and the wave-energy power generation technology of present stage is converted into air pressure energy or hydraulic pressure energy to the potential energy of wave and kinetic energy mostly earlier, be converted into the kinetic energy that drives generator work again, and not directly driving generator work, in this transfer process, certainly will will have energy loss, reduce the generating efficiency of wave energy generating set greatly.

Summary of the invention

The objective of the invention is to electric generator using sea wave energy in, deep-sea development, design a kind of buoy wave energy generating set, and float be designed to down the shape of cylinder on the end toper, directly wave energy is driven generator for electricity generation by crankshaft system.

Curved shaft type buoy of the present invention can respectively be installed one with wave energy generating set around buoy, joint design is flexible, be convenient to connect and dismounting, also this device can be installed on boats and ships or the beacon, this curved shaft type buoy adopts the mode that directly drives the work of drive generator to make generating efficiency improve more with wave energy generating set, the shape that float is designed to down end toper upper end cylinder makes float reduce seawater to its resistance that causes when moving downward, make its easier dive, improve generating efficiency.

Description of drawings

Below in conjunction with accompanying drawing curved shaft type buoy of the present invention is further elaborated and illustrates with wave energy generating set.

Fig. 1: buoy wave energy generating set structure diagram

Fig. 2: bent axle is connected sketch with motor

Fig. 3: float is connected sketch with connecting rod

Fig. 1: buoy wave energy generating set structure diagram, comprising the joint (1) that is connected usefulness with buoy float, fix the framework (2) that all component are used, the coupling (4) that connects generator (3) and bent axle (6), support the bearing (5) of bent axle (6), the connecting rod (7) that connects bent axle (6) and float (8), the sliding bearing (9) of skidding bearing (5) and bent axle (6), the float sleeve (10) of restriction float side-to-side movement.

Fig. 2: bent axle is connected sketch with motor, comprising generator (3), coupling (4) and bent axle (6), have this as can be seen bent axle will rotatablely move and be directly passed to generator.

Fig. 3: float is connected sketch with connecting rod, comprising connecting rod (7) and float (8).

Embodiment

Curved shaft type buoy of the present invention is converted into relative the moving up and down of two floats (8) with wave energy generating set with the kinetic energy of wave and potential energy, thereby drives the rotation of bent axle (6), and then drives generator (3) rotary work and generate electricity.

Curved shaft type buoy of the present invention is in wave energy generating set that bottom float is positioned at the sea or a little more than the sea

1) when small-sized wave passes through this wave energy generating set, be that wave height does not have to surpass the bottom that is in the upper end float, the float that then is in is bottom moved upward by floating function, and the float on being in is moved downward by the effect of bent axle, and buoyancy is increasing; Run to upper end when the float of original lower end this moment, and originally Shang Duan float runs to bottom that buoyancy reaches maximum; Enter next circulation and so forth and drive generator operation.

2) when medium-sized wave passes through this wave energy generating set, be that wave height surpasses the bottom of upper end float but also surpasses beyond the float conical region of upper end, the buoyancy that then is in the lower end float is greater than the buoyancy that is in the upper end float, device can rotate around a direction is fixing, as above-mentioned said this device can move in circles and carry out generating work.

3) when this wave energy generating set of big kohoona process, be that wave height has surpassed upper end float conical region, the water-immersed volume of lower end float this moment is greater than the upper end float, and then its buoyancy also greater than the buoyancy of upper end float, carries out generating work so this device can move in circles equally.

Claims

1. a curved shaft type buoy wave energy generating set mainly is made up of parts such as generator, sliding bearing, bent axle, connecting rod, floats.It is characterized in that impelling two rising and descending motions that float is relative, drive bent axle and rotate, and then drive generator for electricity generation by wave.

2. according to the described curved shaft type buoy of claim 1 wave energy generating set, it is characterized in that float (8) links to each other with bent axle (6) by connecting rod (7), bent axle (7) is fixed on the shelf (2) by bearing (5), bent axle (6) links to each other with generator (3) by coupling (4), and whole curved shaft type buoy links to each other with buoy float by joint (1) with the wave energy generating set framework.

3. according to the described curved shaft type buoy of claim 1 wave energy generating set, float (8) is done tapered, reduce the resistance and the buoyancy that cause when seawater descends to float, realize that two floats can rise and descend relatively.

4. according to the described curved shaft type buoy of claim 1 wave energy generating set,, prevent from that float is too much when moving up and down to swing even break away from buoy wave energy generating set framework at float (8) installation float sleeve (10) down.

5. according to the described curved shaft type buoy of claim 2 wave energy generating set, sliding bearing (9) is installed, is reduced because the energy consumption that friction brings at bent axle (7) and bearing (5) joint.