JPH0536084Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a device that generates a large eddy current on the water surface of an hydrosphere such as a lake or a reservoir.

[Conventional technology]

BACKGROUND ART Conventionally, as a method of artificially creating a vortex on a water surface, a method of stirring the water and exerting its influence on the water surface has been known.

[The problem that the idea aims to solve]

However, with conventional methods, creating a large vortex with a large vortex radius requires a very large amount of stirring power, and in reality it is impossible to use such a large amount of power to stir water. Ta.
For this reason, it has been difficult to artificially create large whirlpools, such as those that occur in nature due to the collision of currents, such as the ``Naruto whirlpools.''

This idea was made in view of the above circumstances.
It is an object of the present invention to provide a large-scale eddy current generating device that does not require large power and can easily create a large-scale eddy current comparable to large-scale eddy currents that occur in nature at a desired location and at a desired timing. .

[Means to solve the problem]

The large-scale eddy current generating device of the present invention includes a closed partition wall in the hydrosphere such that the top part thereof is submerged under the water surface, a drainage area surrounded by the closed partition wall, and a water reservoir provided below the drainage area. An on-off valve is interposed in the water passage connecting the drainage area and the water reservoir, and by opening the on-off valve and allowing the water in the drainage area to fall into the water reservoir, a vortex is formed on the water surface of the drainage area, A means is provided for circulating the water dropped into the water reservoir into the hydrosphere.

[Effect]

When draining water from a hole in the bottom of an aquarium, it is a common experience that swirling currents occur on the water surface. The vortex generating device of the present invention applies this principle, and creates a vortex on the water surface when water is dropped into a water reservoir below from a drainage area surrounded by a closed bulkhead using gravity or pump power. It is something that makes you The size of the vortex radius of the vortex flow is determined by the size of the closing partition (volume of the drainage area), the amount of water discharged from the drainage area per unit time, etc., and the eddy current is generated at the drainage area or the opening of the water passage facing the drainage area. Determined by location, number, etc.

In addition, with the vortex generator of the present invention, the water dropped into the water reservoir is returned to the hydrosphere, and the water in the hydrosphere overflows the top of the closed partition and flows into the drainage area. By controlling the amount in relation to the amount of water overflowing into the drainage area,
A vortex can be generated on the water surface of the drainage area at any timing or continuously.

〔Example〕

FIG. 1 is a schematic diagram of a vortex generator according to an embodiment of the present invention. 1 is a hydrosphere such as a reservoir or a lake, and in the hydrosphere 1, a closed partition wall 2 is provided such that its top part 3 is immersed in the water surface WL, and a drainage area A surrounded by the closed partition wall 2 is set. Closing bulkhead 2
may have a cylindrical shape as shown in FIGS. 2 and 3, or a polygonal cylindrical shape. A water reservoir 4 is provided below the drainage area A, and is separated from the hydrosphere 1 by the bottom wall 5 of the hydrosphere 1. And drainage area A
An on-off valve 7 is interposed in a water passage (a large-diameter hole provided in the bottom wall 5) 6 that connects the water reservoir 4 and the water reservoir 4.
The on-off valve 7 is capable of fully opening the large-diameter water passage 6 in a short period of time or setting it to a desired degree of opening, and for example, a valve using a cylinder is used. A weight W made of collected stones and the like is placed at the bottom of the water reservoir 4, and the weight of the weight prevents the water reservoir 4 from floating up due to the influence of groundwater. 8 is a means for returning the water dropped into the water reservoir 4 from the drainage area A to the hydrosphere 1, and is composed of, for example, a water pump P and a piping element 9, and the water in the water reservoir 4 sucked up by the water pump P is returned to the hydrosphere 1. It's starting to get spit out. The amount of reflux water can be increased or decreased. 10
is an air vent pipe that opens the internal space of the water reservoir 4 to the atmosphere.

With the above configuration, when the on-off valve 7 is opened, the drainage area A
of water is dropped into the water reservoir 4 by gravity through the large-diameter water passage 6, and along with this, the water in the drainage area A
The water surface is concave in the shape of a mortar, as shown by the imaginary line, and a vortex X is generated on the water surface. The size of the vortex radius of the vortex X generated in this way is determined by the size of the closing partition wall 2 (volume of the drainage area), the amount of drainage per unit time from the drainage area A, etc., and the amount of drainage is controlled by relating these factors. As a result, various forms of vortices such as vortices with a large vortex radius and strong force, vortices with a large vortex radius and low force, vortices with a small vortex radius and strong force, and vortices with a small vortex radius and low force are generated. easily produced. By making the size of the drainage area A sufficiently large, even extremely large and powerful whirlpools, such as the "Naruto whirlpools" that occur in nature, can be easily created. Further, the location where the vortex X is generated can be easily set at a desired location by changing the setting position of the drainage area A, the opening position of the water passage 6 facing the drainage area A, etc. In addition, in order to drop the water in the drainage area A into the water reservoir 4, it is possible to use only gravity as described above or only use pump power.
You may use them together.

The water dropped into the water reservoir 4 is pumped by the water pump P.
is returned to the hydrosphere 1 through the piping element 9.
Therefore, if the amount of reflux water is controlled to be equal to the amount of water dropped into the water reservoir 4 (drainage amount), the difference in time between the timing of water dropping into the water reservoir 4 and the timing of the reflux will reduce the amount of water in the drainage area A. The water that has overflowed the top of the closing partition wall 2 constantly flows into the tank, and a vortex flow is generated continuously without interruption. The closing bulkhead 2 is therefore not visible from above. Also,
If you alternately increase the amount of water returned to the hydrosphere 1 compared to the amount of water discharged to the water reservoir 4, or reduce it to the extent that the water in the reservoir 4 does not run out,
The water level in the drainage area A repeatedly fluctuates up and down accordingly, and even during these fluctuations, eddy currents are generated continuously while increasing and weakening their force. Furthermore, if the amount of water returned to the hydrosphere 1 is increased or decreased to such an extent that the water in the water reservoir 4 is reduced compared to the amount of water discharged to the water reservoir 4, which is alternately repeated, a vortex is generated intermittently. It is also possible to generate intermittent vortices by repeatedly opening and closing the on-off valve 7.

Only one water passage 6 is not necessarily provided in one drainage area A, but a plurality of water passages 6 may be provided in one drainage area A in a predetermined positional relationship, as shown in FIG. 2, for example. In this way, by opening all or any of the on-off valves 7 of the water passages 6, a plurality of vortices or a single vortex can be created on the water surface of the drainage area A. FIG. 3 is an explanatory diagram showing how the on-off valves 7 of the three water passages 6 are opened to form a vortex X. As is clear from this, when multiple vortices X are created at the same time, their The eddy currents interact with each other, creating a situation very similar to the eddy currents that occur in nature when tidal currents collide.

[Effect of idea]

According to the vortex generator of the present invention, the size of the vortex can be varied by controlling the size of the closing partition (volume of the drainage area) and the amount of water discharged from the drainage area per unit time. It will be possible to easily create super-large and powerful whirlpools like the ``Naruto whirlpools.''
In addition, the location where the vortex is generated can be easily set at a desired location by changing the setting position of the drainage area or the opening position of the water passage facing the drainage area, and the amount of water falling into the water reservoir can be adjusted to the desired location. It is possible to generate eddy currents on the water surface of the drainage area at any timing or continuously by controlling the relationship with the amount of water overflowing to the reservoir, which is installed as a hydrosphere at an event venue etc. In cases such as this, what used to be nothing more than a static viewing object now has powerful dynamic elements added to it.
It will be possible to dramatically improve its usage, topicality, attention, etc.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram of a vortex generation device according to an embodiment of the present invention, Fig. 2 is a plan view when a plurality of water passages are provided in one drainage area, and Fig. 3 is an explanation showing how vortex generation occurs. It is a diagram. DESCRIPTION OF SYMBOLS 1... Hydrosphere, 2... Closed partition, 3... Top of the closed partition, 4... Water reservoir, 6... Water passage, 8... Means for returning water dropped into the water reservoir to the hydrosphere, 10 ...Opening/closing valve, A...Drainage area, WL...
water surface.

Claims (1)

[Scope of utility model registration request] A closed bulkhead is provided in the hydrosphere so that its top is submerged under the water surface, and a drainage area surrounded by the closed bulkhead is set up, and a water reservoir is provided below the drainage area, and a water tank is provided that connects the drainage area and the water reservoir. An on-off valve is interposed in the passage, and by opening the on-off valve and allowing water in the drainage area to fall into a water reservoir, a vortex is formed on the water surface in the drainage area. A large-scale vortex generating device characterized by being provided with means for causing the flow to flow back into the hydrosphere.