KR200304626Y1 - Funneling and Shielding Device around Virtical Axis Wind Turbine - Google Patents

Abstract

The present invention is installed around the rotating source of the vertical axis wind turbine in order to increase the rotational torque of the vertical axis wind turbine using drag, and the four side plate sets which collect the wind as the direction of the wind changes and block the wind are multi-layered It relates to a wind collecting and wind blowing device constituted by

According to the present invention, as shown in the embodiment of FIG. 1, four 45 ° side plates which are inclined toward the axis are installed at 90 ° intervals around the rotation source of the vertical shaft wind turbine using drag, and the wind direction is forward and the turbine rotation direction. The rotating semicircle (circle circle) of the wind collects the wind, and the rotating semicircle (reverse semicircle) of the turbine whose wind direction is opposite to the rotation direction of the turbine blocks the wind, thereby increasing the effective amount of rotating air acting on the rotor blades. The function of increasing the rotational torque of the rotor blades on both sides about the axis of rotation and the set of four side plates consist of double layers in the axial direction, and the side plates of adjacent layers are staggered at intervals of 45 ° to each other. A function of equally distributing wind and wind effect by mutually adding and subtracting the effective rotational air volume according to the rotation and the wind flows along the 45 ° inclined side plate The induction of in all directions to provide a vertical axis wind turbine chapung jippung, device characterized the functions to increase the rotational torque of the wind turbine.

Description

FUNneling and Shielding Device around Virtical Axis Wind Turbine}

The present invention is installed around the rotational source of the vertical axis wind turbine using drag to collect wind and block wind to increase the rotational torque of the turbine to increase the wind turbine. In general, a vertical wind turbine using drag force rotates due to a difference in force (force) to push an object in a direction of wind flow. Vertical drag wind turbines using these drags include Savonius Rotor, Half-tube Shaped Turbine Blade, Cup Anemometer, and other similarly shaped rotors. Because it can not be faster than the speed of the engine is mainly used as a wind power generator, such as a low-speed pump, and because it is limited to increase the speed of the transmission, it is partly applied to small wind power generators, but commercialization as a wind power generator is not properly achieved There is this.

The purpose of the present invention is to reduce the rotational efficiency of the vertical axis wind turbine using drag, which is not practically used for power generation. It is to provide a wind collecting and wind blowing device configured to be separately installed around a circle.

1 is a perspective view showing an embodiment of the present invention

2 is a partial plan view and an elevation view of a wind collecting and wind blowing device according to the present invention

3 is a flow rate of the forward and reverse air flow received by the rotor blades of the vertical axis wind turbine

Illustrated diagram

4 is a rotary blade when the windshield is installed on the reverse semicircle of the vertical shaft wind turbine

Illustrated diagram showing air volume received

Figure 5a and the forward air volume received by the rotary blades when installing the device of the present invention

Esido showing reverse air flow

5B is an exemplary view when the wind direction of FIG. 5A moves 22.5 ° clockwise.

FIG. 5C is an exemplary view when the wind direction of FIG. 5A moves 45 ° clockwise. FIG.

5D is an exemplary view when the wind direction of FIG. 5A moves 67.5 ° clockwise;

Figure 6 receives the rotary blades of the vertical axis wind turbine according to the change in the wind direction

Diagram showing the change in the air flow rate (when no device of the present invention is installed)

Figure 7 receives the rotary blade according to the change in the wind direction when installing the device of the present invention

Diagram showing the change in air volume

8 is an average value of the effective amount of rotation of two adjacent layers when installing the device of the present invention

Illustrated diagram

9 is a windshield installed in the reverse semicircle of the vertical axis wind turbine (in the case of Figure 4)

Diagram showing rotation effective air volume

<Description of symbols for important parts of the drawings>

(11), (12), (13), (14): Side plate set of upper layer

(21), (22), (23), (24): Side plate set of lower layer part

(5): Rotating source of rotary blades of vertical shaft wind turbine

(6): wind direction

(7): rotational direction of wind turbine (clockwise)

(31): Savonius rotor (general example of vertical shaft wind turbine)

(32): rotation source of Savonius rotor

41: windshield

(61): Forward wind volume received by the rotor blades of a vertical wind turbine

(62): Reverse wind volume received by the rotor blades of a vertical wind turbine

(63): Effective rotational wind volume received by the rotor blades of a vertical wind turbine (V _c = V _a -V _b )

(71): Forward air volume received by the rotor blades during the implementation of the present invention

(72): reverse air flow received by the rotary blades in the implementation of the present invention

(73): Effective rotational air volume received by the rotor blades during the implementation of the present invention

(81): effective rotational air volume of the upper layer during the implementation of the present invention

(82): effective rotational air volume of the lower layer during the implementation of the present invention

(83): Effective amount of rotational air received by the whole rotor blade during implementation of the present invention

(93): Effective rotational air volume when a windshield is installed in a reverse semicircle

(V _a ): Air volume acting on the rotor blades in the direction of rotation and forward

(V _b ): Air volume acting on the rotor blades in the opposite direction of rotation

(V _c ): Rotating effective air volume received by turbine rotor blades (V _c = V _a -V _b )

According to the present invention, four side plates which are inclined 45 ° toward the axis around the rotational source of the wind turbine using drag force collect and block the wind as the wind direction changes, so that the effective amount of rotational air acting on the rotor blades Provided are a wind collecting and wind blowing device characterized by a function of increasing the rotational torque of a wind turbine by an increase and induction in the direction of rotation. Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. The vertical axis wind turbine using the drag force such as Savonius rotor 31 has the air volume (V _a ) acting in the rotational direction and the forward direction of the rotary blade as shown in FIG. _b ) is the same, so both rotor blades receive the same wind pressure but are used as wind turbines because the rotation torque is generated by the difference in drag due to the difference in drag coefficient (C _d ) of the wind receiving surface. (5) Four side plates (11), (12), (13), and (14) are installed at 90 ° intervals with the side plates inclined toward the axis as shown in FIG. Wind flows between the side plate and the side plate 12 and receives twice as much air volume than without the device of the present invention, and in the reverse semicircle area, the side plate 12 blocks most of the wind, so that the effective amount of rotational air flow Wind volume and wind received from the semicircle The difference in the amount) is increased by more than two times than without the device of the present invention, the difference in the drag received by the two rotor blades is further increased, thereby increasing the rotation torque by more than two times.

Of course, when the wind direction is changed, the angle of the wind received by each side plate is also changed, and the air flow rate in the forward direction and the reverse direction is different as shown in FIGS. 5B, 5C, and 5D, but four side plates are installed at 90 ° intervals. The relative position between each side plate and the wind direction is the same condition, and the effective amount of rotational air acting on the rotor blades is increased by about 1.2 ~ 2 times more than before the installation of the device of the present invention as shown in (73). You can expect the effect.

In addition, the four side plate sets are composed of multiples of multiples in the axial direction. In the case of the two-layer configuration, as shown in FIG. Since the effective amount of wind and wind is evenly distributed by adding and subtracting, the effective amount of rotational air received by the entire rotary blades of the upper and lower layers is maintained to be substantially constant as shown in (83), thereby allowing smooth rotational movement.

As described above, according to the present invention, by installing the device of the present invention around the rotating source of the vertical axis wind turbine using drag force, the wind gathers in the forward semicircle and blocks the wind in the reverse semicircle, so that the effective amount of rotating wind acting on the rotor blade As shown in FIG. 4, the reverse wind is completely blocked by the windshield 10 and greatly increases above the effective rotational wind amount 93 in the case of receiving only the forward wind volume, thereby increasing the rotational torque of the wind turbine as much as possible. And since the device of the present invention is simple to manufacture, easy to install, cheap to manufacture and can be used semi-permanently, the vertical axis wind turbine using drag can activate commercialization as a wind power generator. Can provide wind collecting and wind blowing devices.

Claims (1)

The side plates at 45 degrees with the center line of the rotating source are installed at equal intervals around the rotating source of the vertical axis wind turbine using drag to increase the effective amount of rotational air acting on the rotor blade as much as possible. Each side plate of the upper and lower layers is composed of a double multiple layer so that the intervals are maintained at 45 degrees from each other, so that the upper and lower layers are equally distributed in the effective amount of rotating wind acting on the rotor blades.