JPH018699Y2 - - Google Patents

Description

[Detailed description of the invention] A. Purpose of the invention a. Industrial application field The present invention relates to a wind power generation device, which can sufficiently withstand strong winds and can stably generate power even in strong or weak winds. This is related to.

b. Conventional technology Wind power generation utilizes natural energy such as sunlight, heat, wave power, geothermal heat, etc., and can be used permanently, is non-polluting, and requires a relatively small installation area. There are advantages such as However, challenges include how to protect wind turbines and generators during typhoons and other strong winds, and how to stably generate power during strong and weak winds. Therefore, several methods have been proposed in the past, for example,
As described in Publication No. 109337, a Savonius wind turbine in which the blades of the wind turbine are moved in and out of a shield according to the wind speed, and the air volume is controlled so that a nearly constant rotation speed can be obtained despite changes in wind speed. is proposed.

Furthermore, as described in Japanese Patent Application Laid-Open No. 54-132034, a rotating body having blades rotatably attached to a bearing is rotated around a rotating body in the same direction with respect to the tangent of a circle whose origin is the center of rotation of the rotating body. , a rotating device having guide vanes arranged at appropriate intervals from each other has been proposed. In addition, some guide vanes are provided with a second guide vane that can be adjusted to any angle between or on the outside of each adjacent guide vane.

c. Problems to be solved by the invention Each of the above-mentioned conventional technologies has its advantages, but the former, that is, the one that takes the blades of the wind turbine in and out of the shield, may be a small device, but it is not suitable for a large device. A large amount of force is required to raise and lower the entire blade or shield, and it is difficult to finely adjust the air volume in response to the wind speed.

On the other hand, the latter, that is, those in which guide vanes are provided around the rotating body facing in the same direction, or a second guide vane is provided between the guide vanes or outside the guide vanes whose angle can be adjusted, are rotary vanes installed on a vertical axis. In order to turn the
The guide vanes concentrate the wind only on one side of the rotating vanes. Therefore, the guide vanes do not have the effect of collecting sufficient wind, and since the guide vanes all face in the same direction after rotating the rotary vanes, it is difficult for the wind to be discharged out of the device on the side opposite to the wind guide side. There is a high possibility that water will accumulate inside. Rather, it is conceivable that it may impede the inflow of wind or the rotation of the rotating blades.

The present invention is an attempt to solve the above-mentioned problems that conventional wind power generators have. In other words, the purpose is to have a structure that is strong enough to withstand strong winds such as those during typhoons, and also to collect or reduce wind in response to weak or strong winds, to prevent wind from hitting the wind turbine inside. An object of the present invention is to provide a wind power generation device that is adjustable and capable of stable power generation.

B. Structure of the invention a Means for solving the problems The wind power generation device of the invention has a large number of opening/closing panels surrounding the supporting column 3 of the power generation wind turbine 2 that rotates around the horizontal axis 1. The upper and lower shafts 5 of the plate 4 respectively
Each opening/closing plate 4 is provided with an air volume adjustment horizontal hole 9 with an air volume adjustment valve 11 and a small air guide port 12 that is always open. Lower axis 5,
The plate 4 is connected to an opening/closing plate control motor 8 so as to be openable/closable, and the air volume adjustment valve 11 is opened toward the front side of the air volume adjustment horizontal hole 9 by retracting according to the wind force when the opening/closing plate 4 is closed. In order to reduce the amount of wind force, the motor 8 for controlling the opening/closing plate is supported by an adjustment spring 10, and the motor 8 for controlling the opening/closing plate is connected to the wind force detecting means 7 for detecting the wind force in order to close the opening/closing plate 4 when the wind force exceeds a certain level. At the same time, it is connected to a wind direction detection means 6 for detecting the wind direction in order to orient each opening/closing plate 4 parallel to the wind direction when the wind force is below a certain level.

In the above configuration, it is desirable that the horizontal holes 9 for adjusting air volume in each opening/closing plate 4 have a tapered shape that becomes larger toward the outside. The relationship between the wind direction detection means 6, the wind force detection means 7, and the control motor 8 is based on a case where the wind speed is constant, for example, 7 m/sec, and when the wind speed is lower than that, the control motor 8 is Each opening/closing plate 4 is rotated only by the wind direction signal from the wind direction detection means 6 without being actuated by the detection means 7.
Set it so that it is parallel to the wind direction. When the wind speed is 7 m/sec or more, the control motor 8
is set so that the opening/closing plate 4 is closed upon receiving the signal from the wind force detection means 7, regardless of the wind direction signal from the wind direction detection means 6.

Further, the adjustment valve 11 is formed in such a manner that the force of the adjustment spring 10 is stronger during normal wind power, and the horizontal adjustment hole 9 is opened. The strength of the adjustment spring 10 is such that when a strong wind force above a certain level, for example, a wind force equivalent to a wind speed of 20 m/sec, is applied to the adjustment valve 11, the adjustment spring 10 completely retreats due to the wind force, and the horizontal adjustment hole 9 Keep it closed. Note that the normally open air guide port 12 may be formed in the center of the regulating valve 11, but in other cases, for example, when there is a strong wind, the valve 11 does not seal the regulating horizontal hole 9, leaving a small gap on both sides. In this way, the gap may be used as the air guide port 12, and further, the gap between each opening/closing plate 4 may be used as the air guide port 12. In the illustrated example, each opening/closing plate 4 is a single piece in the vertical direction, but if the power generation device of the present invention is made large-sized, a plurality of opening/closing plates 4 are arranged in the vertical direction via the vertical shaft 5. All you have to do is connect. In addition, since the wind force is generally stronger as it goes upward from the ground, it is desirable that the wind guide opening 12 be formed smaller as it goes upward from the ground.

In the figure, 13 is a top plate, 14 is a bottom plate, and 15 is a generator.

b. Effect The operating state of the present invention is such that during weak winds or normal wind speeds of up to 7 m/sec, the control motors 8 of each opening/closing plate 4 receive a signal from the wind direction detection means 6, and each The fully opening/closing plate 4 becomes parallel to the wind direction as shown by the solid line in FIG. Therefore, the wind is not obstructed by the opening/closing plate 4, but rather is rectified and flows into the device, rotating the central power generation wind turbine 2 to generate electricity, and then passing through the parallel opening/closing plate 4 on the opposite side. It flows out from between them without any hindrance. Also, when the wind direction changes from time to time, each control motor 8 of each opening/closing plate 4 is rotated by the required amount in response to a signal from the wind direction detecting means 6, and all opening/closing plates 4 are rotated by the required amount. parallel to the wind direction. Therefore, when the wind is weak or normal, the wind is efficiently utilized to rotate the power generation windmill 2.

Next, when the wind speed exceeds, for example, 7 m/sec, the wind force detection means 7
In response to the signal, the control motor 8 rotates, and the full opening/closing plate 4 is closed as shown by the two-dot chain line in FIG. However, the power generation wind turbine 2 does not stop due to this, but the adjustment valve 11 in each opening/closing plate 4 opens the adjustment horizontal hole 9 according to the wind force by the spring 10. Therefore, a part of the wind flows in through the horizontal hole 9, rotates the windmill 2, and then flows out through the adjusting horizontal hole 9 of the opening/closing plate 4 on the opposite side.

Furthermore, in the event of a typhoon or other strong winds, the fully opening/closing plate 4
remain closed as described above, and each horizontal hole 9 for adjusting air volume also springs 10 due to the wind pressure on the adjusting valve 11.
The horizontal adjustment hole 9 is closed. At this time, if the air guide port 12 is provided in the center of the control valve 11, even if the control valve 11 completely closes the horizontal control hole 9, the air will not be introduced from the center air guide port 12. Turn the power generation wind turbine 2 using the
flows out from In addition, the air guide port 12 is connected to the control valve 11.
If there is a gap between the wind turbine and the adjusting horizontal hole 9, wind will be introduced from the air guide port in the gap and rotate the wind turbine 2, resulting in stable power generation.

When the wind weakens, the wind direction detecting means 6 gives priority again, and in response to its signal, the fully opening/closing plate 4 is opened in the same manner as described above, and the wind flows in to rotate the power generation windmill 2. Further, unlike the above, it is also possible to make the opening/closing plate 4 open slightly even in strong winds.

C. Effects of the invention As is clear from the above, the invention has the following effects.

[a] For example, even in strong winds such as during a typhoon, power generation wind turbines and generators will not be damaged in any way. In other words, for windmills etc. that are erected independently,
It collapses or is damaged during strong winds. However, in the present invention, an opening/closing plate is erected around the power generating wind turbine, etc., so that it closes during strong winds, so that the wind turbine, etc. inside does not collapse or get damaged. In addition, when the opening/closing plate is closed, the wind does not pass through at all, but a small amount is allowed to escape, so the wind force applied to the opening/closing plate is reduced, causing the opening/closing plate to collapse or be damaged. There's nothing to do.

[b] Stable power generation is possible even in weak or strong winds. In other words, with conventional systems, it is not possible to adjust the amount of wind applied to power generation wind turbines in response to weak or strong winds.
Or insufficient and stable power generation was not possible.
In contrast, with the present invention, when the wind is weak or normal, the full opening/closing plate is placed parallel to the wind direction, so the wind does not receive any resistance, but rather is rectified and flows in and out, maximizing the wind. It can be used to rotate windmills for power generation.

In addition, when the wind is strong, all the opening/closing plates are closed, but even at that time, the regulating valves on each opening/closing plate move back against the regulating springs according to the wind force, regulating the inflow of wind from the horizontal regulating holes. Then, rotate the windmill with an appropriate amount of wind power. Furthermore, when the wind is strong, even if the control valve closes the control horizontal hole, the wind guide port remains open, so the wind turbine for power generation will still rotate with a moderate amount of wind, so it will always be stable. It can generate electricity.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Figure 1 is a plan view when the top plate is omitted in normal wind power, Figure 2 is a side view taken from a direction perpendicular to the wind direction during normal wind power, and
FIG. 3 is a side view taken from a direction parallel to the wind direction during normal wind power, and FIG. 4 is a partially enlarged perspective view of the opening/closing plate. Drawing code 1...horizontal axis, 2...wind turbine for power generation, 3
...Support column, 4...Opening/closing plate, 5...Shaft, 6...
Wind direction detection means, 7...Wind force detection means, 8...Control motor, 9...Horizontal hole, 10...Spring, 11...
Control valve, 12...Air guide port.

Claims (1)

[Claims for Utility Model Registration] A large number of opening/closing plates 4 are arranged around a supporting column 3 of a power generating wind turbine 2 rotating around a horizontal axis 1, and can be rotated by upper and lower axes 5, respectively. Each opening/closing plate 4 has an air volume adjustment horizontal hole 9 with an air volume adjustment valve 11, and a small air guide port 1 that is always open.
2, and the upper and lower shafts 5 of the opening/closing plate 4 are connected to the opening/closing plate control motor 8 so as to be able to open and close the plate 4.
An adjustment spring 1 is installed near the front side of the opening/closing plate 4 in order to reduce the opening amount by retracting according to the wind force when the opening/closing plate 4 is closed.
The opening/closing plate control motor 8 is connected to a wind force detecting means 7 for detecting wind force in order to close the opening/closing plate 4 when the wind force is above a certain level, and when the wind force is below a certain level. A wind power generation device in which each opening/closing plate 4 is connected to a wind direction detection means 6 for detecting the wind direction in order to orient it parallel to the wind direction. The wind power generation device according to claim 1, wherein a small hole is formed in the center of the air volume control valve 11 of the opening/closing plate 4 as the small air guide port 12 that is always open. The wind power generation device according to claim 1, wherein a space is provided between each opening/closing plate 4 as a small wind guide port 12 that is always open.