CN102817774A

CN102817774A - Vertical-axis micro-wind level wind turbine with flow guiding structure

Info

Publication number: CN102817774A
Application number: CN2011101622569A
Authority: CN
Inventors: 韩万金; 郭云飞; 韩万龙; 颜培刚; 王洪鹏; 黄洪雁; 顾忠华
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-07
Filing date: 2011-06-07
Publication date: 2012-12-12

Abstract

The invention provides a vertical-axis micro-wind level wind turbine with a flow guiding structure. The vertical-axis micro-wind level wind turbine is a vertical-axis unidirectional rotating mechanism and a device capable of converting wind power into mechanical power. The vertical-axis micro-wind level wind turbine is formed by a group of movable blades capable of rotating vertically, an external flow guiding structure, an internal flow guiding structure, a control plate in the flow guiding direction and a generator support. The movable blades, the internal flow guiding structure and the external flow guiding structure use the vertical axes as the rotating axes. The external flow guiding structure is arranged in front of the movable blades on a windward portion for adjusting the flowing direction and speed of most fluid, and then the fluid can impact the movable blades to rotate with a proper angle. When the air flow penetrates through the movable blades on the windward portion, the air flow continues to move with certain speed, the flowing direction and the speed of the air flow are regulated through the internal flow guiding structure, resistance power is reduced, further conversion of the wind power to the mechanical power is improved, and efficient utilization of the micro-wind level wind energy is achieved. The vertical-axis micro-wind level wind turbine is low in cost, stable in operation, low in starting wind speed, capable of using 3.5m/s and above wind power for generation efficiently and is particularly suitable for household power supply, highway lighting and the like of wide urban and rural regions of our country.

Description

The vertical shaft gentle breeze level wind energy conversion system that has flow guide structure

Technical field

The present invention relates to gentle breeze rank field of wind energy utilization, is a kind of through the unidirectional rotating machinery of vertical shaft, wind energy is changed into the device of mechanical energy.

Technical background

In field of wind power generation, how the above wind speed of 5m/s can be utilized other wind energy of gentle breeze level below the 3-4m/s to be paid close attention to by people by people's good use always, does not still have relevant patent at present.

Summary of the invention

It is low that this invention not only starts wind speed, and well solved the difficult problem of the wind energy power of efficient sharp gentle breeze rank wind speed, is fit to the power supply of China's both urban and rural area, frontier sentry and highway lighting facility etc.

This invention has adopted following technical proposals.

In order to make air-flow promote the movable vane rotation with suitable angle; Be mechanical energy with wind energy transformation to greatest extent; In the front of movable vane outside flow guide structure is set, adjusts whole or most of air current flow directions and speed, make it to impact movable vane to obtain maximum rotation kinetic energy with suitable angle.Air-flow continues motion with certain speed after passing the movable vane of the part of facining the wind, if continue to flow according to this speed, will produce at leeward part movable vane place and significantly hinder moment, and this can balance out most of moment of rotation.In order to reduce resisting moment; Make this part air-flow promote movable vane rotation acting once more, in the border circular areas that rotary area surrounded of movable vane, inner flow guide structure is set, adjust its flow direction and speed; Make this part air-flow impact the movable vane of leeward part with suitable angle; Reduce the work of resistance, further improved wind energy utilization, in the whole circumference scope, can both produce thrust as far as possible.

Outside flow guide device is fixed into as a whole through the certain thickness disk of top and bottom; The certain thickness disk of inner flow guide device through top and bottom is fixed into as a whole, and movable vane is fixed into as a whole through the certain thickness disk at middle part.Total moment design load around the shaft that outside flow guide device and inner flow guide device receive is 0, can fix in the windward side direction.A distance is provided with the wind direction control panel of certain-length on the flow guide device top, its objective is the direction of adjusting wind direction and flow guide device at any time, guarantees that it is over against coming flow path direction.

Above-mentioned explanation is the present invention program's general introduction, for can clearer understanding technological means of the present invention, and can implement according to the content of specification, below with accompanying drawing of the present invention specify as after.

Provide embodiment of the present invention and accompanying drawing thereof below in detail.

Description of drawings

Fig. 1 is a middle cross sectional planes schematic representation of the present invention

Fig. 2 is outside flow guide structure figure of the present invention

Fig. 3 is a movable vane schematic representation of the present invention

Fig. 4 is inner flow guide structure figure of the present invention

Fig. 5 is the flat board up and down and the water conservancy diversion direction control panel profile diagram of outside flow guide structure of the present invention

Fig. 6 is the left view of appearance profile of the present invention

Fig. 7 is appearance profile of the present invention and supporting structure schematic representation

Fig. 8 is a running shaft schematic representation of the present invention

Among the figure: 1, movable vane; 2, outside flow guide structure; 3, inner flow guide structure; 4, water conservancy diversion direction control panel; 5, running shaft; 6, metal cylinder; 7, the association of hollow circular-tube and movable vane middle part disk; 8, movable vane middle part disk; 9, the disk of inside and outside flow guide structure upper end; 10, the disk of inside and outside flow guide structure lower end.

Embodiment

Below in conjunction with accompanying drawing embodiment the specific embodiment of the invention, structure, characteristic and effect thereof are described in detail:

Among the present invention, the curve among Fig. 1 is the streamline of incoming flow fluid, and the great circle outside is outside water conservancy diversion zone, and the zone in the middle of great circle and the roundlet is the movable vane rotary area, and roundlet inside is inner water conservancy diversion zone, and running shaft (5) is arranged in the centre of roundlet.

Outside flow guide structure (2) is fixed together with inner flow guide structure (3), water conservancy diversion direction control panel (4); With running shaft (5) is the rotatingshaft rotation; The integral body that outside flow guide structure (2), inner flow guide structure (3), water conservancy diversion direction control panel (4) constitute can slowly be adjusted to the direction over against incoming flow according to coming flow path direction.Fluid is through behind the outside flow guide structure (2), and its direction and velocity magnitude promote movable vane (1) and rotate around axle (5) through adjustment.Fluid continues motion with certain speed after passing the movable vane of the part of facining the wind.In order to make this part fluid promote movable vane rotation acting once more; Inner flow guide structure (3) is set in the border circular areas that rotary area surrounded of movable vane; Adjust its flow direction and speed, make this part fluid impact the movable vane of leeward part, reduce the work of resistance with suitable angle; Further improve wind energy utilization.

Be provided with flat board in the centre of movable vane and the two ends up and down of inside and outside flow guide structure; The main fixation that rises; Need to prove that inner flow guide structure will be separated into from the centre and be upper and lower identical two-part, so that being connected of flat board and running shaft in the middle of the movable vane; Top inside flow guide structure is affixed on the flat board of outside flow guide structure and inner flow guide structure upper end, and following inside flow guide structure is affixed on the flat board of outside flow guide structure and inner flow guide structure lower end.Dull and stereotyped top and the water conservancy diversion direction control panel (4) in the upper end of inside and outside flow guide structure is fixed together, and the center of upper end flat board all through bearing fixing on running shaft (5).As shown in Figure 8, the lower semisection of running shaft (5) is double-deck bearing structure, and wherein middle is fixed metal cylinder (6); Two bearings are up and down passed through in the metal cylinder outside; Hollow circular-tube is fixed on can carries out on the metal cylinder with respect to metal cylinder rotation, the upper end of hollow circular-tube is the middle part of metal cylinder, fixes with the flat board in the middle of the movable vane; The lower end of hollow circular-tube directly links to each other with generator or links to each other with generator through belt or gear structure, and mechanical energy is converted into electric energy.The lower end of inside and outside flow guide structure can be done relatively rotating with respect to hollow circular-tube through bearing fixing on hollow circular-tube.Metal cylinder (6) lower end of axle (5) directly links to each other with supporting structure.

Claims

1. one kind is passed through the unidirectional rotating machinery of vertical shaft; Wind energy is changed into the device of mechanical energy; It is characterized in that it is made up of the movable vane of vertical rotation, outside flow guide structure and inner flow guide structure, make air-flow, promote the movable vane rotation once more through inner flow guide structure again through promoting the movable vane rotation behind the outside flow guide structure; Its principle is to adopt the wind energy conversion system structure that has multiple turbulence structure; Direction and speed to inside and outside two side liquids of movable vane are reasonably regulated, and make the fluid of movable vane rotary area both sides promote the unidirectional rotation of movable vane simultaneously, in most of circumference range, can both utilize the kinetic energy of gas to promote the movable vane acting.

2. direction adjusting apparatus is characterized in that water conservancy diversion direction control panel and outside flow guide structure, the inner flow guide structure coaxial rotation that is fixed together, and guarantees water conservancy diversion direction control panel all the time and comes flow path direction consistent.

3. a rotating supporting device is characterized in that double-deck running shaft, and the centre is a cylinder, links to each other with the tubular rotating shaft of hollow through bearing, and the tubular rotating shaft of hollow links to each other with other rotational structures through bearing outward.

4. a means of fixation is characterized in that using flat board that outside flow guide structure, inner flow guide structure top and bottom are fixed, to guarantee that its intensity and maximum deformation quantity are in the limit that does not influence the normal rotation of movable vane.

5. a means of fixation is characterized in that the movable vane that rotates is fixed in same flat board, connects the axle center transmitted power through flat board.