WO2014194831A1

WO2014194831A1 - Vertical shaft hydraulic power generation device

Info

Publication number: WO2014194831A1
Application number: PCT/CN2014/079203
Authority: WO
Inventors: 徐文和
Original assignee: Xu Wenhe
Priority date: 2013-06-05
Filing date: 2014-06-05
Publication date: 2014-12-11
Also published as: CN103291527A

Abstract

Disclosed is a vertical shaft hydraulic power generation device, comprising a vertical shaft (4) which is connected to a gearbox and a generator set (6), and arm levers (1), of which one end is connected to the vertical shaft (4), and the other end of each of the arm levers (1) is connected to a turbine blade (2) via a spacing shaft (3); wherein the vertical shaft (4) is a driving centre; all the arm levers (1) are connected by using the vertical shaft (4) as a centre; in the same plane, a right angle is formed between the arm levers (1) mutually; in the direction of the vertical shaft (4), the arm levers (1) are distributed at an equal distance; the spacing shaft (3) is a rotation limiting device which can only rotate in a single direction, and the rotation angle is only within the range of less than 90º; and the rotatory force is transmitted to the gearbox and the generator set (6) by the vertical shaft (4). The vertical shaft hydraulic power generation device has the advantages that the structure is simple, and small flow energy can be collected and used; the flow energy can be used regardless of having a fixed direction, the integral structure is stable, and there is no noise, so as not to influence the ecological environment of the ocean; and the gyroscopic moment is large, and the starting performance is good.

Description

Vertical axis hydroelectric generating device

[Technical Field]

The present invention relates to the use of hydraulic energy to generate electricity, and more particularly to a vertical axis hydroelectric power plant.

【Background technique】

Energy is an indispensable requirement for human beings, and ocean energy is a renewable energy source attached to seawater. Due to the gravitational influence of the sun and the moon on the earth, it causes 71% of the surface area of the earth to flow, with tides, waves, Ocean currents can move in various forms. These huge amounts of energy in seawater have less energy per unit volume, unit area, and unit length. To obtain large energy, they have to be obtained from a large amount of seawater. This is the biggest difficulty at present. Secondly, the irregular movement of ocean energy, without clear direction, can not be controlled, the current technology can not take advantage of the enormous energy in the ocean.

The current technology only builds dykes, increases water level difference, and increases unit water energy to achieve operational benefits, such as the Three Gorges Power Station, or the French Langs Power Station that uses tidal power generation, and the Jiangxi Power Station in China. The technology currently in the laboratory: Savomus rotor, Madaras rotor, Darrieus VAWT, after the National Research Council of Canada (NRC), the National Experiment of the United States Laboratory (SNL), UK (VAWT), France (CENGD), Netherlands (Pionierl), Romania (TEV100), Switzerland (Alpha Real) and other laboratory research improvements, their blade shape varies widely, mainly arc Type, triangle, Y, H, S, fan, arch, wedge, etc. These technologies cannot extract micro energy from seawater with a flow velocity of less than 2M/s, and thus obtain economical energy.

[Summary of the Invention]

The main object of the present invention is to provide a vertical axis hydropower generating device which adopts a novel turbine blade structure, which can collect flow micro energy without a fixed direction from a large amount of seawater, and has a large impeller function. Under the same direction, it always rotates in the same direction, and is not affected by water flow and eddy current. The rotating turbine blades always maintain vertical or side-to-side transformation. Synchronous turbine blades of different angles have a good direction of driving force guiding, omnidirectional Work, water flow can work in any direction on the turbine blades, the working state is the same, the energy flowing from any direction to the turbine blades will work together in concert, and in order to obtain greater force, you can use the principle of leverage, you can arbitrarily extend The area of the boom and turbine blades can be arbitrarily adjusted from the height and width to increase the area of the turbine blades to achieve the desired working efficiency.

According to Lord Rayleigh's fluid resistance equation:

FD = 1⁄2pv ² CDA

among them

FD is the resistance, which is the component of the direction parallel to the flow field. p is the fluid density

V is the velocity of the fluid relative to the object

CD is the drag coefficient

A is the reference area (the area of the orthogonal projection of the object in the direction of motion)

From the above formula, p v CD is a constant. To extract a large amount of micro energy from seawater, only the area A can be enlarged to increase the resistance FD. In order to achieve the above object, the present invention provides a vertical axis hydropower generating apparatus which mainly includes a vertical shaft connected to a gearbox and a generator device and an arm connected to the vertical shaft at one end, the other end of the arm passing through The limiting shaft is connected to the turbine blade; wherein the vertical axis is the driving center, and all the arms are connected with it as the center. In the same plane, the arm and the arm are at right angles to each other, the vertical axis direction, the arm Isometrically distributed with the arm, the limiting shaft is a limiting rotating device, which can only rotate in one direction, and the angle of rotation can only be within a range of less than 90°, and the ideal angle should be less than 45°, by the limiting shaft Controls the opening and closing directions of the turbine blades.

In the same plane, the main drive shaft extends from four sets of arms to the periphery, so that the energy flowing in either direction can be formed around the main drive shaft by the arm, the limit shaft, and the turbine blade. The combination of the arm blades forms a side closed, one side open motion state, the closed end is the main rotation direction, and the open end is on the limit shaft due to the force of the turbine blade, and the limit shaft is in the turbine blade force Pushing and moving in the opposite direction to the flow direction, forming a resultant force in the same direction as the closed end.

In order to make the turbine blades and the arm well closed, a corresponding arcuate groove is provided on the side of the turbine blade opposite the arm.

The rotational force is transmitted from the vertical axis to the gearbox and the generator unit. In order to improve the utilization rate, it is necessary to enlarge the turbine blade. In addition to extending the length of the arm, the height of the vertical axis and the blade can be extended, and as the height increases, Under the action of the rotation of the turbine blades, resonance and swing are formed. Therefore, it is necessary to provide the connecting plate connecting plates at the upper and lower ends, and the plurality of vertical axis hydroelectric generating devices are connected together by the connecting plate connecting plates to form a whole, because each The rotation direction of the vertical axis hydropower unit can be set, so in the same whole, the unit rotation direction is symmetrical to ensure smooth operation.

The hydroelectric generating set device provided by the invention has the following advantages: the structure is simple, the manufacturing specifications can be adjusted according to the demand, no matter how small the flow energy can be collected and utilized, as long as there is displacement, the energy utilization can be extracted; no direction, no flow energy It can be used with fixed direction or no fixed direction. The overall structure is stable, suitable for low speed operation, no noise, no impact on the marine ecological environment; simple design, low cost, large turning moment, good starting performance and easy manufacturing.

[Description of the Drawings]

The present invention will be further described below in conjunction with the accompanying drawings:

Figure 1 is a plan view of the operation mode of the vertical axis hydropower generating unit

Figure 1A is a schematic diagram showing the structure of the vertical axis hydraulic generating unit's façade limit shaft

Figure 2 is a plan view of the operation of the vertical axis hydropower generating unit Figure 3 is a vertical view of the vertical axis hydroelectric generating unit

Figure 4 is a schematic diagram of the overall plane connection of the vertical axis hydro-generator set

Figure 5 is the overall elevation of the vertical axis hydroelectric generating unit

In the figure, the boom 1, the turbine blade 2, the limit shaft 3, the vertical shaft 4, the working platform 5, the gearbox and the generator set 6, the attachment plate 7, the 10A arm blade combination outer end, the 10B arm blade combination End, 10C boom blade combination outer end, 10D arm blade combination outer end.

[Specific implementation method]

The present invention is achieved by the following methods:

According to Fig. 1, Fig. 2, Fig. 3, the vertical axis hydropower generating device of the present invention mainly comprises: an arm 1, a turbine blade 2, a limit shaft 3, a vertical shaft 4, a working platform 5, a gearbox and a generator set 6. 10A boom blade combination outer end by vertical shaft 4, arm 1, limit shaft 3, turbine blade 2 combination, 10B arm blade combination outer end, 10C arm blade combination outer end, 10D arm blade combination end. The arm 1 has one end connected to the rotating vertical shaft 4, the other end connected to the limiting shaft 3, the limiting shaft 3 is directly connected to the turbine blade 2, and the turbine blade 2 side is provided with an arcuate groove 2-1 and an arm. Corresponding to the rod 1, when the turbine blade 2 is closed, the arcuate groove coincides with the curved surface of the side of the arm 1, and the vertical shaft 4 is directly connected to the transmission and the generator set 6 through the working platform 5. When the vertical axis hydro-generator unit is constituted by a plurality of vertical shafts and corresponding arm and turbine blades, the attachment plate 7 is provided at the upper and lower ends of the vertical shaft 4 to prevent the vertical shaft 4 from swinging under the turbine blades 2. Resonance is formed, especially because of the controllability of the rotating direction of the unit (the closed end of the turbine blade is the main direction of rotation), and the adjacent units in the group are symmetrically rotated, which plays a vital role in the overall smooth operation. .

It can be seen from Fig. 1 that when the ocean can surge from any direction, the turbine blades at the outer end of the 10D boom blade combination on both sides of the vertical axis are closed, showing the maximum positive force, and the turbine blades at the outer end of the 10B boom blade combination are opened, the turbine blade The side is opened outwards, so that the force acting on the opened turbine blade is concentrated on the limit shaft, forming a force opposite to the direction of the water flow, forming a resultant force with the positive force, and the 10C arm blade conforming to the direction of the ocean capability. The turbine blade at the outer end of the combination is just closed, and the turbine blade at the outer end of the 10A boom blade combination is gradually opened. Figure 2 Due to the rotation, the outer end of the 10D boom blade combination, the turbine blade at the outer end of the 10C boom blade combination is closed, and the 10A boom blade combination The turbine blades at the outer end and the outer end of the 10B boom blade combination are gradually opened under the centrifugal force, and the forces acting on the turbine blades are concentrated on the limit shaft. The limit shaft is caused by the thrust of the turbine blade to cause the arm to reverse the flow direction. , forming the same force as the outer end of the combination of the 10D arm blade and the outer end of the 10C arm blade combination, with After the turned angle, i.e., inwardly closed by centripetal force, acting repeat blade arm outer end of the blade combination 10C is formed continuous rotational work.

Figure 3 Turbine blade generator set, it can be seen from the figure that the outer end of the 10B boom blade combination and the outer end of the 10D boom blade combination can be one piece or multiple pieces, mainly due to energy conversion requirements and structural stability. Need to consider, Figure 4, Figure 5, 5 is the working platform, 6 is the gearbox and generator set, 7 is the attached plate connecting plate, the working platform is set at sea level, the vertical axis hydro-generator set is suspended on the working platform, The attachment plate connects the adjacent units into a complete box turbine blade work unit. If it is used for wind power, it is only necessary to place the 6 gearbox and generator underneath the complete box turbine blade working group, and it can work on the base frame.

The turbine blade unit has obvious features such as simple design, low cost, large turning torque, good starting performance, easy manufacturing and processing, low rotation speed, good safety and no noise pollution, and can be widely popularized and applied to meet the requirements of energy saving and emission reduction.

Claims

claims

1. A vertical axis hydroelectric power generation device, characterized by: It mainly includes a vertical axis connected to a gearbox and a generator device and an arm connected to the vertical axis at one end, and the other end of the arm passes through a limiter The shaft is connected to the turbine blade; the vertical axis is the driving center, and all the arms are connected around it. On the same plane, the arms are at right angles to each other. In the vertical axis direction, the arms are connected to the arms. Distributed at equal distances, the limit shaft is a rotation limiting device. It can only rotate in one direction, and the angle of rotation can only be within a range of less than 90°. The ideal angle should be less than 45°. The turbine blades are controlled by the limit shaft. opening and closing directions.

2. The vertical axis hydroelectric power generation device according to claim 1, characterized in that: a corresponding arc-shaped groove is provided on the side of the turbine blade opposite to the arm.