JP2006291791A - Wind force prime mover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wind force prime mover of a structure having a high wind power use rate as a whole body by making wind coming through a wind tunnel hit on a windmill without attenuation of wind force and effectively utilizing reaction of wind force between the blade of the windmill and a wind tunnel outlet on a windward side. <P>SOLUTION: The windmill 2 is opened to allow ventilation in a horizontal direction, and is closed by an upper plate and a lower plate to prevent ventilation in a vertical direction. Two or more blades 9 are freely reversed and swung inwardly/outwardly within a range of a predetermined defection angle on vertical shafts 10 on the windmill 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a wind power generator of a type that rotates a windmill by collecting wind in the center in all directions in order to perform wind power generation or the like.

Patent Document 1 (Japanese Patent No. 3225326) discloses the following structure as this type of wind power generator. The names in parentheses are part names in the same publication.
A windmill (rotary body) provided with a large number of blades (rotating blades) in a centrifugal shape is rotatably installed at the center, and a large number of wind tunnels (wind introduction paths) tapering toward the center are installed on the top plate ( The upper fixed plate), the bottom plate (lower fixed plate), and the partition plate (external introduction blade) form a concentric section, and wind turbines (rotating bodies) by wind power gathered in the center through the wind tunnel (wind introduction path) ). A large number of inclined plates (inner introduction blades) are arranged around the entire circumference of the windmill (rotary body) and between it and the exit of the wind tunnel (wind introduction path), as the distance between them approaches the windmill (rotary body). The wind turbine (rotary body) is fixed by inclining in the same direction so as to be narrow, and deflecting the wind that has passed through the wind tunnel (wind introduction path) in one direction by these inclined deflection plates (inner introduction blades) Rotate in one direction.

  However, according to this, since many blades of the windmill are all fixed in the same direction with respect to the axle of the windmill, many blades that receive wind force in the opposite direction to rotation in one direction of the windmill also occur, Use efficiency of wind power becomes low.

  In addition, all the exits of all the wind tunnels that are concentrically arranged are always open, so that part of the wind that has passed through the wind tunnel on the leeward side passes directly through the wind tunnel on the leeward side. The problem is that the use efficiency of wind power is lowered here as well because it does not contribute to the rotation of the windmill.

Furthermore, between the wind tunnel exit and the entire circumference of the windmill, a large number of inclined deflecting plates are fixedly arranged in one direction while narrowing the interval as described above. On the other hand, these are great resistances against wind power, and the wind is attenuated.
Japanese Patent No. 3225326

  An object of the present invention is to solve such problems in the prior art, and to efficiently apply the wind that has passed through the wind tunnel to the wind turbine without attenuation of the wind force, and between the blades of the wind turbine and the wind tunnel outlet on the windward side. An object of the present invention is to provide a wind power prime mover that can effectively utilize the reaction of wind power between them and can have a structure with high wind power utilization efficiency as a whole.

  In order to achieve such a problem, the present invention provides a wind turbine in which a plurality of blades are provided at intervals in the circumferential direction, and is installed in the center so as to be rotatable around an axle that is a vertical axis. A large number of wind tunnels that taper toward the concentric section formed by a top plate, a bottom plate, and a partition plate, and a wind turbine that rotates the wind turbine by wind force that gathers in the center through the wind tunnel. Is open to allow the passage of wind and closed in the vertical direction to prevent the passage of wind, and each of the plurality of blades has a predetermined deflection angle range with the vertical axis on the wind turbine as a fulcrum. It is characterized in that it can be inverted and swung inward and outward.

  In addition, a rectifying plate is provided at each wind tunnel outlet formed around the windmill.

According to the wind power generator of the present invention, the blades on the windward side of the wind turbine are reversed inward by the wind force as a rectifying plate while receiving wind force at a required inclination angle with respect to the wind force entrance direction and applying a rotational force to the wind turbine. Also works. On the other hand, since the blades on the leeward side of the wind turbine are inverted outward by the wind force, the wind force concentrated on the windward side is received from the front almost and ejected to the wind tunnel side. The wind tunnel partition plate and rectifying plate also act as a reaction plate against the blown wind force, and give the wind turbine rotational force. When the windmill rotates in one direction in this way, the leeward blades are reversed to the outside as they move to the leeward side, and the leeward blades are reversed to the inside as they move to the leeward side, This function is repeated, and this is repeated.
Therefore, it becomes a structure with high wind-use efficiency as a whole.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  As shown in FIGS. 1 to 3, this wind power prime mover has a wind turbine 2 that rotates around an axle 1 that is a vertical axis at the center, and a large number of wind tunnels 3 that surround the wind turbine 3 at intervals. The top plate 4, the bottom plate 5, and a number of partition plates 6 are concentrically defined, and the wind turbine 2 is rotated by wind power gathered from the periphery of the wind power generator through the wind tunnel 3 to the center. 7 is supported.

  The top plate 4 forming the wind tunnel 3 is inclined downward from the outer peripheral edge toward the inner peripheral edge, whereas the bottom plate 5 is inclined upward from the outer peripheral edge toward the inner peripheral edge, and a number of partition plates 6, each interval is gradually narrowed from the outer end toward the inner end, so that each wind tunnel 3 is tapered to gradually reduce the cross-sectional rectangle from the outer end inlet 3 a toward the inner end outlet 3 b. It has become a shape. A predetermined number of rectifying plates 8 are fixedly installed inside the outlet 3b of each wind tunnel 3.

  In addition, in the wind tunnel 3, a beam material or the like for reinforcement is installed if necessary. Moreover, the top plate 4 may be horizontal.

  The windmill 2 is open in the horizontal direction so as to allow the passage of wind, but is closed by the upper plate 13 and the lower plate 14 in the vertical direction so as to prevent the passage of wind. ing.

  A plurality of plate-like blades 9 are mounted on the wind turbine 2 between the upper plate 13 and the lower plate 14 so as to be able to be inverted and swung at equal intervals around the axle 1. Each blade 9 can be individually reversed in both the inner and outer directions of the wind turbine 2 within a predetermined deflection angle range with a longitudinal axis 10 extending between the upper plate 13 and the lower plate 14 as a fulcrum. In order to cause each blade 9 to reversely swing in this way, a stopper (not shown) for determining the reverse swing angle of the blade 9 is provided for each blade 9. In the wind turbine 2, a rectifying plate 11 for each blade 9 is fixedly installed on the inner side of the vertical axis 10 and on the line connecting the vertical axis 10 and the axle 1.

  The shaft 1 of the windmill 2 is supported at both upper and lower sides, and a generator 12 having the axle 1 as a common shaft is connected to the lower side of the shaft 1 so that power is generated by the rotation of the windmill 2.

  Since the wind power generator has the structure as described above, in the wind tunnel 3 on the windward side, the wind entering from the inlet 3a is throttled by the wind tunnel 3 that is tapered toward the outlet 3b, and the outlet 3b is rectified. It passes through the plate 8 while being rectified, and hits the blade 9 on the windward side of the windmill 2. Among the plurality of blades 9 on the windward side, the blades 9 rearward in the rotation direction (arrow direction) of the windmill 2 are reversed inward as indicated by the wavy lines, whereas the blades 9 are directed in the rotation direction (arrow direction). The front blade 9 reverses from the inside to the outside as indicated by the wavy line.

  Accordingly, the windward blades 9 are reversed to the inside by the wind force and act as a rectifying plate while receiving wind force at a required inclination angle with respect to the approach direction of the wind force and applying a rotational force to the windmill 2.

  On the other hand, the wings 9 on the leeward side are reversed to the outside by the wind force, so that the wind force concentrated on the windward side is almost received from the front and ejected to the wind tunnel 3 side. The wind tunnel partition plate 6 and the rectifying plate 8 also act as reaction plates against the blown wind force, and impart a rotational force to the windmill 2. When the windmill 2 rotates in one direction in this way, the windward blades 9 are reversed to the outside as they move to the leeward side, and the leeward blades 9 are reversed to the inside as they move to the windward side. Since the above functions are changed and repeated, the wind power use efficiency is high.

It is a front view of the Example of this invention. It is sectional drawing of the AA line of FIG. It is sectional drawing of the BB line of FIG. It is a fragmentary perspective view of a windmill.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Axle 2 Windmill 3 Wind tunnel 3a Inlet 3b Outlet 4 Top plate 5 Bottom plate 6 Partition plate 7 Base frame 8 Current plate 9 Blade 10 Vertical axis 11 Current plate 12 Generator 13 Upper plate 14 Lower plate

Claims (2)

A wind turbine having a plurality of blades spaced apart in the circumferential direction is installed in the center so as to be rotatable around the longitudinal axis, and a number of wind tunnels tapering toward the center are In a wind power prime mover that is concentrically defined by a bottom plate and a partition plate, and rotates a windmill by wind power that gathers in the center through a wind tunnel
The windmill is opened in such a manner as to allow passage of wind in the horizontal direction and closed so as to prevent passage of wind in the vertical direction, and each of the plurality of blades is arranged vertically on the windmill. A wind power prime mover characterized in that it can be swung inwardly and outwardly within a predetermined deflection angle range with a shaft as a fulcrum.   The wind power prime mover according to claim 1, wherein a rectifying plate is provided at each wind tunnel outlet formed around the wind turbine.

Images