JP5635652B1 - Wind power generator - Google Patents

Abstract

[PROBLEMS] To provide a wind power generator capable of securing an air current acting on a wind turbine while maintaining a rising air current, which is a source of power generation, in a stable state, thereby enabling efficient and stable power generation. Let it be an issue. A wind guide tower 1 is provided along a substantially vertical direction in which an intake portion 3 is provided at a lower portion and an exhaust portion 4 is provided at an upper portion, and an upward air flow from the intake portion toward the exhaust portion is formed. An intake pipe 5 that communicates with the vicinity of the intake section of the wind guide tower and sucks outside air by the rising air current in the wind guide tower, and a windmill 6 that is connected to the upstream side of the intake pipe and rotated by the sucked external air flow. And a generator 7 that is rotationally driven by a windmill, and a heat storage layer H is formed on the inner surface of the wind guide tower. [Selection] Figure 1

Description

  The present invention relates to a wind turbine generator, and more particularly to a wind turbine generator that generates power using an air flow generated by a pressure difference in the atmosphere.

  In general, a wind power generator using wind is known in which a large windmill is rotated using natural wind, and the rotation of the windmill is transmitted to a generator to generate power.

  In wind power generation using such a windmill, natural wind is used, but since the volume and direction of the natural wind are not constant, the amount of power generation varies and the power supply is not stable. There is a problem.

  In order to improve such problems, for example, a wind power generator as described in Patent Document 1 or Patent Document 2 has been proposed.

  The former wind power generator has a high-rise building with a vertical air passage that communicates from the lower floor area to the roof, an air intake at the lower floor of the air passage, an opening near the roof, and A wind power generator and its rotating blades are installed for each predetermined floor in the air passage.

  Then, an upward air flow is generated in the air passage due to a pressure difference caused by a difference between the wind speed near the opening located in the upper layer and the wind speed near the air intake port located in the lower layer, and the rotation air causes the rotation The blades are rotated, and this rotation is used to generate power in the wind power generator.

  In the latter wind power generator, a spiral fan is installed in the chimney along the length direction thereof, and a generator is installed in an intake passage formed continuously in the lower part of the chimney. The rotation of the spiral fan is transmitted to the generator via a rotation transmission mechanism installed through the wall.

  And this technique also rotates the spiral fan provided in the chimney by the rising airflow generated in the chimney, and transmits the rotation to the generator via the rotation transmission mechanism. To do.

Utility Model Registration No. 3153015 JP 2009-121451 A

  However, the following points to be improved still remain in the above-described technique.

  That is, in any of the above-described techniques, since the rotating blades and the spiral fan are installed in the flow of the updraft from the air inlet (chimney) to the outlet, the large updraft is generated. In addition to resistance, this air flow is greatly disturbed, and the efficient rotation of the rotating blades and the spiral fan is impeded, and these rotations become unstable.

  As a result, there is a risk that the power generation efficiency is lowered or the power generation amount becomes unstable.

  In addition, by arranging the spiral fan or wind power generator in the air path (chimney), the size and weight of these devices are restricted by the shape of the air path or chimney, and the generator that can be used is restricted. Will be.

Furthermore, in wind power generation using such updrafts, as a means for increasing the power generation efficiency and power generation amount, the temperature of the gas flowing into the wind path or chimney is increased and the buoyancy generated thereby is used. Is mentioned.

  When such a means is executed, in any of the above-described techniques, all the devices used for power generation are exposed to high temperatures, and the durability thereof is impaired or the devices become expensive.

  The present invention has been made in view of such conventional problems, and ensures an airflow acting on the windmill while maintaining a rising airflow that is a source of power generation in a stable state, thereby improving efficiency. Perform stable power generation, the specifications of the equipment used for power generation do not depend on the means for generating the updraft, and that the updraft directly acts on the equipment used for power generation. It is an object of the present invention to provide a wind turbine generator that can prevent and improve its durability.

In order to solve the above-described problem, the wind turbine generator according to the present invention is provided with an intake portion at a lower portion and an exhaust portion at an upper portion to form an upward air flow from the intake portion to the exhaust portion. A building having a wind guide tower installed along the vertical direction and the vicinity of the intake section of the wind guide tower are connected to the vicinity of the intake section, and the outside air is sucked using negative pressure generated by the rising air current in the wind guide tower. An intake pipe, a windmill connected to the upstream side of the intake pipe and rotated by the sucked external airflow, and a generator driven to rotate by the windmill, the windmill and the generator being It is arranged outside the building , and a heat storage layer is formed on the inner surface of the wind guide tower.

With such a configuration, when an updraft is generated in the wind guide tower, outside air is sucked from an intake pipe provided at a lower portion of the wind guide tower so as to be drawn into the flow.

  Here, the outside air to be sucked is performed through an intake pipe communicated with the intake section, and a windmill and a generator used for power generation are provided on the upstream side of the intake pipe. The updraft does not act directly on the windmill or generator.

  As a result, the ascending air current is kept in a constant and uniform flow, while the resistance from the wind guide tower is always kept constant.

On the other hand, since the ascending airflow is maintained in a stable state as described above, the flow of outside air in the intake pipe drawn in by this is also stabilized.
Accordingly, the rotation of the windmill and the operation of the generator that are operated by the airflow of the outside air are stabilized, and a stable power generation amount can be ensured.

  Since the windmill and generator used for the power generation are provided independently from the wind guide tower via the intake pipe, these devices are not affected by the shape of the wind guide tower, and can be freely used. It can be created based on various specifications.

Further, even if it is necessary to increase the temperature of the updraft in order to increase the energy of the updraft, the updraft does not directly act on the windmill or generator. The above-mentioned rising air temperature can be raised without impairing durability.
Therefore, it is possible to easily improve the power generation efficiency and increase the power generation amount.

  Furthermore, since the wind guide tower is provided only for generating an updraft, it is sufficient that the wind guide tower has only a cylindrical shape. Therefore, not only a normal chimney, but also an elevator equipment of a high-rise building, for example. It is also possible to use an elevator shaft which is an installation space.

  And, by providing a heat storage layer on the inner surface of the wind guide tower, the heat of the updraft (if the wind guide tower is provided integrally with the building, it is generated from this building, Exhaust heat from the outdoor unit of the cooler, heat generated by guiding the heat generated by the electrical equipment to the wind guide tower), heat transmitted through the wind guide tower (for example, the wind guide tower) , Etc., is stored in the heat storage layer, and the temperature of the updraft is gradually increased by this heat. .

  As a result, the energy of the updraft can be increased, and improvement in power generation efficiency and increase in power generation can be expected.

  As a preferred embodiment of the present invention, a clutch mechanism that connects and disconnects the wind turbine and the generator is provided.

  By setting it as such a structure, the maintenance of the said generator can be performed, without stopping the rotation of the said windmill by canceling | releasing the connection state of the said windmill and the said generator.

  Further, as a preferred embodiment of the present invention, a speed change mechanism for changing the speed of the windmill and transmitting it to the generator may be provided between the windmill and the generator.

With such a configuration, the rotational force of the windmill transmitted to the generator is adjusted by the speed change mechanism, and the rotational force of the windmill and the driving force applied to the generator are appropriately adjusted. can do.
Thereby, the rotational force generated in the windmill can be converted into a driving force optimal for driving the generator, and efficient power generation can be performed.

  And the said heat storage layer can be formed by apply | coating a heat storage paint to the inner surface of the said induction tower.

  According to the present invention, an airflow acting on a windmill is ensured while maintaining an updraft that is a source of power generation in a stable state, thereby efficiently and stably generating power, and a device used for power generation The specifications are not affected by the means for generating the updraft, and further, the updraft can be prevented from acting directly on the equipment used for power generation, and the durability can be improved. A wind turbine generator can be provided.

It is a system block diagram which shows the outline of one Embodiment of this invention. It is an expanded vertical sectional view of the principal part which shows the external air intake system by an updraft in one Embodiment of this invention. It is an expanded longitudinal cross-sectional view of the principal part which shows the external air intake system by an updraft in other embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a system block diagram showing an outline of an embodiment of the present invention. A building B such as a high-rise building provided with a wind guide tower 1 for generating an updraft, and the wind guide tower 1 And a power generation unit 2 connected to the lower portion.

  The building B preferably has a height of 100 mm or more. In this embodiment, one of the elevator shafts provided in the building B is used, and the lifting mechanism is removed. The wind guide tower 1 is formed.

  The wind guide tower 1 is provided at its lower part with an intake part 3 opened inside the building B, and at its upper end with an exhaust part 4 opened to high outside air.

  The power generation unit 2 includes an intake pipe 5 laid outside from the lower part of the wind guide tower 1 through the building B, and a wind turbine 6 connected to the intake pipe 5 outside the building B. , And a generator 7 that is rotationally driven by the wind turbine 6.

  Inside the wind guide tower 1, an orifice part Z formed by gradually narrowing the inner diameter of the wind guide tower 1 is provided in the upper part of the air intake part 3. One end of the intake pipe 5 is attached.

  That is, as shown in FIG. 2, the intake pipe 5 is laid through the peripheral wall of the wind guide tower 1 in a portion between the orifice part Z and the intake part 3, and one end thereof is The wind guide tower 1 is bent toward the exhaust part 4 at the center thereof, and its tip is positioned in the vicinity of the minimum diameter part of the orifice part Z.

The wind turbine 6 is connected to the other end of the intake pipe 5 (the end located outside the building B).
The wind turbine 6 is rotatably mounted in a casing 8, and the casing 8 is provided with a wind introduction pipe 9 that draws in outside air. The wind introduction pipe 9 is included in the outside air that is drawn in. A filter 10 for removing dust and the like is attached.

  Then, outside air is drawn into the casing 8 from the wind introduction pipe 9, and this outside air is drawn into the wind guide tower 1 from the intake pipe 5 after acting on the wind turbine 6 in the casing 8. The wind turbine 6 is rotated while the outside air passes through the casing 8.

  As shown in FIG. 1, a clutch mechanism 12 is connected to the wind turbine 6 through a rotation transmission shaft 11 that penetrates the casing 8, and the clutch mechanism 12 is connected through a rotation transmission shaft 13. A transmission mechanism 14 is connected to the transmission mechanism 14, and the generator 7 is connected to the transmission mechanism 14 via a rotation transmission shaft 15.

  In the present embodiment, the intake pipe 5, the wind turbine 6, the generator 7, the casing 8, the wind introduction pipe 9, the filter 10, the rotation transmission shafts 11, 13, 15, the clutch mechanism 12, and the speed change mechanism 14 are used to generate a power generation unit. 2 is configured.

Furthermore, a heat storage layer H is formed on the inner surface of the wind guide tower 1 as shown in FIG.
This heat storage layer H is formed, for example, by applying a heat storage paint, or by applying a heat storage material.

  In the wind turbine generator according to the present embodiment configured as described above, an updraft is generated in the wind guide tower 1 based on the difference in gas pressure between the intake section 3 and the exhaust section 4. Power is generated using

The ascending air current is generated by, for example, a collapse of pressure balance caused by a difference between a wind speed near the exhaust portion 4 located at the high place and a wind speed near the intake portion 3 located at the low place, and the gas in the low place Is sucked in from the intake portion 3 and exhausted from the high exhaust portion 4.
Here, the wind guide tower 1 does not have a member that resists the flow of the updraft in the interior thereof, and thus a uniform updraft is generated.

  Thus, when an ascending air flow is generated in the wind guide tower 1, when the rising gas passes through the orifice part Z (shown by a solid line arrow in FIG. 2), a pressure drop is generated in the orifice part Z. And a negative pressure region having a pressure lower than the atmospheric pressure is formed.

  When the orifice portion Z is in a negative pressure state in this way, a negative pressure is applied to the tip of the intake pipe 5 positioned in the vicinity of the orifice portion Z, and the gas in the intake pipe 5 is guided to the wind induction. It is sucked into the tower 1 (indicated by a broken line arrow in FIG. 2), and is discharged from the exhaust part 4 to the outside air while generating an upward air flow with the gas inside.

  When the gas in the intake pipe 5 is sucked into the wind guide tower 1, the pressure in the casing 8 is reduced accordingly. Outside air is sucked through the introduction pipe 9.

  As a result, an airflow is generated from the filter 10 through the wind introduction pipe 9, the casing 8, and the intake pipe 5 into the wind guide tower 1, and the windmill 6 is rotated by the gas flowing in the casing 8. The rotation of the wind turbine 6 is transmitted to the generator 7 through the rotation transmission shaft 11, the clutch mechanism 12, the rotation transmission shaft 13, the speed change mechanism 14, and the rotation transmission shaft 15. The generator 7 is driven to rotate to generate power.

  In the present embodiment, the wind guide tower 1 and the power generation unit 2 are connected via an intake pipe 5 and main components of the power generation unit 2 are installed independently from the wind guide tower 1. ing.

  As a result, the power generation unit 2 can be manufactured based on independent specifications regardless of the shape and dimensions of the building B and the wind guide tower 1, and the degree of freedom in design is extremely large. It can be set as the wind power generator of the appropriate specification according to the climate condition etc. of the place where a wind power generator is installed.

  On the other hand, in this embodiment, the wind guide tower 1 is formed inside the building B, and the outside air sucked into the wind guide tower 1 is drawn from the outside of the building B, and the building It is sucked together with the gas in B.

  Here, the internal gas of the building B is heated by the heat generated from the electrical equipment in the building B, and when it is drawn into the air intake section 3 of the wind guide tower 1, the wind induction A temperature difference is formed between the upper part and the lower part of the tower 1.

  Due to this temperature difference, the speed of the updraft in the wind guide tower 1 is accelerated. Along with this, the suction force of the gas from the intake pipe 5 in the orifice part Z also rises, and the gas flow velocity in the casing 8 increases. And the driving energy for the wind turbine 6 also increases.

  As a result, the driving force of the generator 7 that is rotationally driven by the wind turbine 6 is also increased, and the amount of power generation and the power generation efficiency are improved.

On the other hand, in the wind guide tower 1, the gas inside the wind guide tower 1 moves up and in contact with the heat storage layer H.
Due to such contact, the heat of the gas is conducted and accumulated in the heat storage layer H.

  The heat stored in the heat storage layer H keeps the inside of the wind guide tower 1 warmed. For example, when a low-temperature gas is sucked, the gas is warmed and rises to this gas. Can give energy for.

  By such an action of the heat storage layer H, the rising airflow in the wind guide tower 1 is stabilized, and also from this point, the power generation efficiency and the power generation amount in the power generation unit 2 can be stabilized.

By the way, in this embodiment, the clutch mechanism 12 is provided between the windmill 6 and the generator 7.
Even when the windmill 6 is in a rotating state, the clutch mechanism 12 can block the rotation transmission between the windmill 6 and the generator 7. The work can be performed without being influenced by the operating state of the wind turbine 6.

A transmission mechanism 14 is provided between the clutch mechanism 12 and the generator 7.
The speed change mechanism 14 is configured to change the rotation of the windmill 6 and transmit the speed to the generator 7. By appropriately setting the speed ratio, the transmission applied from the windmill 6 to the generator 7 is performed. The operating state of the generator 7 can be stabilized by adjusting the force to an appropriate value.

  Note that the shapes, dimensions, and the like of the constituent members shown in the above embodiment are merely examples, and various changes can be made based on design requirements and the like.

  For example, in the above-described embodiment, an example is shown in which the tip of the intake pipe 5 is bent upward at the center of the wind guide tower 1 so that the tip is positioned at the orifice Z. However, instead of this, as shown in FIG. 3, it is also possible to install the tip of the intake pipe 5 so as to open to the minimum diameter portion of the orifice portion Z.

DESCRIPTION OF SYMBOLS 1 Wind guide tower 2 Power generation unit 3 Intake part 4 Exhaust part 5 Intake pipe 6 Windmill 7 Generator 8 Casing 9 Wind introduction pipe 10 Filter 11 Rotation transmission shaft 12 Clutch mechanism 13 Rotation transmission shaft 14 Transmission mechanism 15 Rotation transmission shaft B Building (skyscraper)
H Heat storage layer Z Orifice

Claims (3)

A building having a wind guide tower provided at a lower portion and an exhaust portion at an upper portion, and having a wind guide tower installed along a substantially vertical direction forming an upward air flow from the intake portion toward the exhaust portion; An intake pipe that communicates with the vicinity of the intake section of the wind guide tower and receives the negative pressure generated by the updraft in the wind guide tower and sucks outside air, and an intake pipe that is connected upstream of the intake pipe. A windmill rotated by an external airflow and a generator driven to rotate by the windmill, the windmill and the generator are arranged outside the building , and a heat storage layer is provided on the inner surface of the wind guide tower. A wind power generator characterized by being formed.
  A clutch mechanism that connects and disconnects the wind turbine and the generator, and a transmission mechanism that shifts the rotation of the wind turbine and transmits the rotation to the generator are provided between the wind turbine and the generator. The wind power generator according to 1. The wind power generator according to claim 1, wherein the heat storage layer is formed by applying a heat storage paint on an inner surface of the induction tower.

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