JPS5925091A - Tornado type wind power generating apparatus - Google Patents

Abstract

PURPOSE:To aim at improvements in power generating efficiency, by installing a heat receiving body in close vicinity to the lower end of a cylindrical body, and condensing the sunlight onto the heat receiving body in making full use of a reflecting mirror, while heating a suction stream passing around the heat receiving body. CONSTITUTION:A heat receiving body 13 and a reflecting mirror 14 are installed in position, and then the sunlight S is condensed onto the heat receiving body 13 through the reflecting mirror 14, making the heat receiving body into a high temperature. Therefore, a suction stream flowing upward around the heat receiving body 13 is heated. When the suction stream is forcibly heated, a rising current of air due to a temperature rise is produced there and simultaneously the central suction pressure of a swirly stream is much intensified whereby the speed of an air current in a stream contraction part 9 increases. Moreover, with the swirly stream intensified, an incoming air quantity also increases, through which the swirly stream is as well intensified. That is to say, not only supplying energy to a generator 2 grows larger but also a power generating value increases.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tornato type wind power generator, and more particularly to a tornato type wind power generator which improves power generation efficiency by also utilizing solar heat in addition to the two original wind energy.

One type of wind power generation device is a tornado type wind power generation device, and since this is a power generation device that utilizes wind energy in the natural world, it is expected to be used effectively not only from the viewpoint of resource and energy conservation but also from the perspective of environmental conservation.

This tornado type wind power generation device includes a constrictor member having an inlet opening formed around the circumference, an exhaust outlet formed at the upper end, a constrictor part formed from the inlet opening toward the exhaust outlet, and a constrictor member that has a constrictor part formed from the inlet opening toward the exhaust outlet, and A cylindrical body arranged in a vertical position and having an opening for introducing air around the periphery and having an open upper and lower end, and a generator installed so as to be rotatably driven by a blade located near the smallest cross-section part of the contraction part, The structure is such that the generator is driven by utilizing the airflow generated within the contracted flow member due to the swirling flow generated within the cylindrical body.

As is clear from its structure, the tornado type wind power generation device generates a swirling flow within the cylinder by orienting the air introduction opening upwind, and the negative pressure at the center of this swirling flow causes the contracted flow to flow upward. An accelerated suction flow is generated through the member into the cylindrical body, and the kinetic energy of this suction flow is used to drive a generator.

However, since the conventional tornado type wind power generation device as described above has a structure that simply uses wind energy, the power generation efficiency is low and the range of its practical application is limited.

An object of the present invention is to provide a tornado type wind power generation device that uses not only wind energy but also thermal energy of sunlight to increase the kinetic energy of upward flow and improve power generation efficiency. That's true.

The present invention provides a conventional tornado type wind power generation device having the above-described structure, further disposing a heat receiving body near the lower end of the cylindrical body, and concentrating sunlight on the heat receiving body using a reflecting mirror. By heating the suction flow passing around the heat receiving body V, an upward air flow is generated and the swirling flow is strengthened (3), thereby achieving an improvement in power generation efficiency.

The present invention will be described in detail below with reference to the drawings.

1 to 3 are diagrams showing one embodiment of the present invention.

1 and 2, a power generator 2 is installed on a base 1, and a blade 4 is fixed to the tip of a generator shaft 3 that projects upward from the generator 2. As shown in FIGS. - Further, on the base l, a contracting member 6 is supported by a plurality of legs 5 and is arranged to cover the blade 4 concentrically.

In the illustrated example, this contracted flow member 6 has a Mt. Fuji shape,
A suction lower is formed around it, and the upper part thereof is open to form an exhaust port 8. In addition, inside the contraction member,
A contracted flow section 9 is formed that is narrowed from the lower suction amount toward the exhaust port 8.

The blade 4 is located near the minimum cross section of the contracted flow section 9.

The cylindrical body 1 is mounted on the contraction member 6 via a plurality of legs lO.
1 is supported. This cylindrical body is supported in a vertical position with its (4) lower end surface being close to the flow contraction member 6, and its upper and lower ends are open.

Around the cylindrical body 11, as shown in FIG. 3, a plurality of door-type air introduction openings 12 which can be opened and closed are provided in the circumferential direction. As shown in the third factor, when the wind is blowing in the direction of arrow F, a desired number (four in the illustrated example) of these air introduction openings 12 are provided at substantially tangential positions on the negative side.
2, the door portion 12Ak is opened to introduce air into the interior, and the rest are all closed during use.

The door portion 12A functions as a guide vane, and the number of openings and the opening angle can be appropriately set in consideration of the air introduction effect.

A heat receiving body 13 is disposed in a suitable manner at the center of the cylindrical body 11 near its lower end. Further, an appropriate number of reflecting mirrors 14 are installed around the contraction member 6 of the base 1. Each reflecting mirror 14 is supported by legs 15 and is rotatably supported so that it can be oriented in a desired direction according to the height and direction of the sun. In use, each reflecting mirror 14 reflects sunlight S and focuses the sunlight S on the heat receiving body 13, so that the heat receiving body is heated to a high temperature and the upward flow flowing around it is heated by heat transfer. It has become.

The functions and effects of the embodiments described above will be explained below.

As shown in FIG. 3, an appropriate number of air introduction openings 12' are provided according to the wind direction F! When opened, air flows tangentially through these openings and a swirling flow is formed within the cylinder 11. In the swirling flow, the pressure is lower and the degree of negative pressure is higher as it approaches the center, so this negative pressure suction action causes the flow to permeate into the contracted flow member 6, and this flow flows from the exhaust port 8 to the cylindrical body ll. It is sucked into the interior and flows out from the upper end along with the swirling flow.

Therefore, within the flow contraction member 6, the flow speed is increased in the flow contraction section 9, and the kinetic energy thereof is converted into rotational motion of the blades 4, thereby driving the generator 2.

The above action is the same as that of the conventional design, but in this embodiment, the heat receiving body 3 and the reflecting mirror 14 are provided, so that the sunlight S can be focused on the heat receiving body 13 by the reflecting mirror 14. This allows the heat receiving element to reach a high temperature. Therefore, the suction flow flowing upward along the bends of the heat receiving body 13 is heated.

When the suction flow is forcibly heated in this manner, an upward air flow is generated due to the temperature increase, and the central negative pressure of the swirling flow is strengthened, so that the flow velocity in the contracted flow section 9 is further increased. Further, due to the strengthening of the swirling flow due to the strengthening of the central low pressure, the amount of air introduced into one cylindrical member 11 is further increased, and this also strengthens the swirling flow.

That is, by heating the counter-directed suction flow with solar energy, an updraft is generated and the swirling flow is strengthened, and the synergistic effect of these effects further strengthens the swirling flow and the suction flow. The amount of energy supplied to the area will increase significantly, and the amount of electricity generated will increase. In other words, solar energy can be added to wind energy to make effective use of it.

According to the embodiment described above, by additionally utilizing solar energy in addition to wind energy, an upward air current is generated inside the cylinder, and a stronger swirling flow (tornato) is generated, thereby greatly improving power generation efficiency. can be achieved.

Note that the tornado type wind power generation device according to the present invention can be operated quietly and safely, and since the propeller part is not visible unlike in the case of a wind turbine, it does not give a sense of anxiety, and it is environmentally friendly even when used in residential areas. It is a device that cannot be damaged at all. Furthermore, each part of the device can be made of plastic, and the present invention can be applied to all types of devices, whether large or small, such as for factory use or home use.

FIG. 4 is a diagram showing another embodiment of the present invention.

In the embodiment shown in FIG. 4, one permanently open air intake port 16 is provided as an air introduction opening provided around the cylindrical body 11, and the cylindrical body itself is supported so as to be rotatable according to the direction of the wind. There is.

The embodiment shown in FIG. 4 differs from the embodiment shown in FIGS. 1 to 3 only in the method of supporting the cylindrical body 11 described above and the structure of the air introduction opening; all other parts are substantially the same. This is the same as above, and corresponding parts are denoted by the same reference numerals and their explanation will be omitted.

The embodiment shown in FIG. 4 can also achieve the same effects as the embodiments shown in FIGS. 1 to 3.

As is clear from the above description, according to the present invention, a tornado type wind power generation device having higher power generation efficiency than conventional devices can be obtained.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a perspective view showing an embodiment of a tornado type wind power generation device according to the present invention, FIG. 2 is a longitudinal sectional view of FIG. 1, and FIG. 3 is a line taken along lines in FIG. 2. FIG. 4 is a perspective view showing another embodiment of the tornado type wind power generator according to the present invention. 2... Generator, 3... Generator shaft, 4... Blade, 6... Contraction member, 7... Suction opening, 8... Air exhaust port. 9... Contraction part, 11... Cylindrical body, 12.16...
Air introduction opening, 13...heat receiving body, 14...reflector. F...Wind direction, S...Sunlight. Agent Tatsuyuki Unuma (and 2 others)

Claims (1)

[Claims] (1) A constrictor member having a suction opening formed around the circumference, an exhaust port formed at the upper end, and a constrictor portion formed from the suction opening toward the exhaust port, and arranged in a vertical position near the top of the exhaust port. 5. A cylindrical body with open upper and lower ends and an opening for introducing air around the periphery, and a generator installed so as to be rotatably driven by blades located near the minimum cross section of the contraction section, In a tornado type wind power generation device that drives the generator by using a suction flow generated in the contracted flow member due to a swirling flow caused by A tornado type wind power generation device characterized in that light is focused on the heat receiving body to completely heat the suction flow.