Environment-friendly long-service-life matrix-combinable wave power generation unit

Abstract

The invention discloses an environment-friendly long-service-life matrix-combinable wave power generation unit which comprises a floater outer shell. A positive pressure container bin, a negative pressure container bin, a pneumatic impeller, a power generating device, a main shaft and at least two water barrels are arranged in the floater outer shell. The bottoms of the water barrels are communicated through channels. The water barrels are distributed evenly on the outer circle of the main shaft in a ring shape. The water barrels are communicated with the positive pressure container bin and the negative pressure container bin through single-way valves. The direction of a single-way valve I communicated with the negative pressure container bin is opposite to the direction of a single-way valve II communicated with the positive pressure container bin. The positive pressure bin is communicated with a gas spraying opening of the pneumatic impeller through a gas spraying channel. The negative pressure bin is communicated with a gas sucking opening of the pneumatic impeller through a gas sucking channel. The impeller is fixed at a rotor end of the power generating device and drives a rotor to rotate, then power generation is achieved, the top of the main shaft is communicated with the gas sucking opening of the impeller. The unit is designed to be of a floating structure and cannot be affected by tides as long as a placing position has a certain water depth.

Description

[0001] technical field [0002] The invention specifically relates to an environment-friendly long-life matrix-combinable wave generator set. Background technique [0003] Energy is the main material basis for economic and social development, and the consumption of fossil energy will bring about the greenhouse effect. As a clean energy, waves should be developed and utilized. Existing wave power generation devices include the following: [0004] ⑴ Raft wave power generation device: developed by the British Cockerell in 1971, the three rafts floating on the water surface are connected by hinges. The two-way oil pressure piston and the generator generate electricity. Later, his design was changed to a two-section raft. The front section is divided into two parts. The width of the raft is 25 meters, and the width of the latter part is 50 meters. To control the live valve, the seawater is pumped into the pool of the rear raft, and then pressed into the seawater under the ...

AI Technical Summary

Problems solved by technology

Since wave energy mainly exists near the sea level, those rigidly fixed devices based on the coast or the seabed will be affected by the subsidence of the tidal sea level (10 meters) (when the sea level is low, the function will be lost or the efficiency will be reduced or the cost will be increased), which will not be stable and efficient. Disadvantages of economically harvesting wave energy

[0016] ⑵ Insufficient design to deal with the highly corrosive marine environment, mainly reflected in the failure to isolate the marine environment from the precision power generation device

The power device based on the mechanical rod cannot realize completely isolated power transmission (the internal precision parts are hard to avoid corrosion damage), the bearing of the swing reversing part is stressed and the environment is harsh and the life is short; the air exchanged by the power transmission It is directly taken from the surrounding environment of the device, and it is difficult to isolate the gas with seawater droplets from invading and corroding vulnerable power components such as impellers

[0017] ⑶ short life of movable or soft parts

It is mainly reflected in the fact that for devices that work in a purely mechanical way, the supporting or conversion joint bearings bear the impact of all the conversion forces of waves, and the force is large, and most of them will be exposed to the marine environment and have a short life; devices based on air bags have two problems. Unfavorable factors affect the service life: ①Repeated large-scale deformation movement under high pressure (only large deformation can produce sufficient internal volume changes to drive the impeller to generate electricity), and high-amplitude long-term fatigue under the harsh conditions of direct seawater Cause fracture or decrease in elasticity; ②From the consideration of high efficiency, this part of the component must be as soft as possible (inner volume change requirements), so its thickness and strength are limited, and to obtain wave energy, this part of the component is designed to directly meet the waves, the waves The destructive force is sometimes huge (such as the impact of a huge wave caused by an instant gale or the hammer blow when falling)

In addition, the movable or soft parts bear all the impact force of the sea wave or its conversion force, and there is no force threshold protection design

Rapidly damaged when repeatedly impacted by larger waves

[0018] ⑷Many devices do not have the ability to accurately adjust the direction of incoming waves

If the wave force conversion device cannot be adjusted to face the fluctuation head-on, its conversion efficiency will inevitably decrease

[0019] ⑸Insufficient design of fixing method

In addition to the fact that the device directly fixed on the seabed is affected by the tide, there are also two problems with the floating device: ① The anchor chain brings restrictions and drag to the fixed end of the device

For the device based on horizontal swing, the fixed end is affected by the joint action of the anchor chain's own weight and fixed traction, so the swing is limited and the efficiency is reduced

For the device that moves up and down on the vertical water surface, it will be dragged and tilted to hinder the vertical movement, reducing the efficiency

②The fixed anchor chain only considers the fixation of a single device, lacks the coordinated design of the close combination of multiple devices, and does not have the ability to obtain wave force energy in a large area (wave force energy is dispersed and distributed, and it needs to cover a large area to cover the water surface to obtain commercially valuable energy)

[0020] ⑹ Pollution caused by equipment oil

Many power generation devices use hydraulic components as the energy-transforming medium and a large number of mechanical bearings require lubrication, which involves the use of engine oil, and the engine oil is easy to leak without complete sealing, causing pollution around the device

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