JP2532679Y2 - Suction vortex generator - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction vortex generator for producing an ornamental vortex, which is used for a reservoir of a park or the like.

[0002]

2. Description of the Related Art As means for adding a landscape to a reservoir or the like,
Conventionally, a fountain facility for blowing water has been the mainstream. However, this fountain has a drawback that it feels unsatisfactory because the monotonous blowing shape and the watering sound are repeated.

[0003] Thus, for example, it is conceivable to create an aesthetic effect full of freshness by generating a suction vortex on the water surface, by using the suction sound and the dynamic scene of the vortex.

[0004]

However, in order to generate a suction vortex on the water surface, it is necessary to suck a large amount of water using a water pump or the like. Therefore, when this pump is provided, for example, on land, there is a problem that the pump is not only large in size at a high head, but also the installation place cannot be easily secured.

[0005] In view of such conventional problems, the present invention provides a suction vortex generator which can easily generate a suction vortex on the water surface by using a small hydraulic machine. The purpose is.

[0006]

The suction vortex generator of the present invention is installed at the bottom of a pond, such as a reservoir, and has a vertically variable length frame, and the upper end of the frame has An inverted conical funnel body whose upper edge is supported vertically in a state of being submerged from the surface of the water, and a conduit supported on the frame in a vertical state so that water in the funnel body flows down below the funnel body. A submersible mixer arranged in the conduit so as to allow the water flowing into the conduit to flow downward, and connected to a lower end of the submerged mixer, so that water flowing downward by the submersible mixer is surrounded by the underwater mixer. And a blow-off pipe that blows out to diffuse.

[0007] A reflux pipe is connected to the conduit to recirculate a part of the water flowing in the conduit into the funnel.

[0008]

In the suction vortex generator of the present invention, the water in the funnel immersed below the water surface is passed downward through the conduit by the underwater mixer, and is blown by the outlet pipe connected to the lower end of the underwater mixer. It is blown out to diffuse to the surroundings. When the water in the funnel flows down into the conduit by the underwater mixer, the air is entrained therein, so that a vortex with a large suction noise is generated on the water surface. In addition, the water containing the air is blown out by the blowing pipe so as to diffuse to the surroundings.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

A suction vortex generator 1A shown in FIG. 1 is for generating an ornamental suction vortex on a water surface L of a reservoir P or the like, and mainly includes a frame 2, an underwater mixer 3, a funnel body 4, and an outlet pipe 5. It is configured as a unit.

In the frame 2, for example, a frame-shaped base 6 is installed on a pond bottom B via a base member 7, and, for example, four columns 8 are erected on the base 6. This post 8
Are composed of an upper column 8a and a lower column 8b, respectively, and can be disassembled and assembled with bolts 9.

Further, a receiving plate 10 for supporting a support frame 15 described later is provided at an upper end of the upper column 8a, and a gantry 11 for supporting the underwater mixer 3 is provided at an intermediate portion. Have been. A large-diameter water hole 12 is formed in the center of the gantry 11.

The underwater mixer 3 includes a known axial impeller 13.
A small underwater mixer or the like equipped with a shaft is applied to the inside of a conduit 14 for guiding the flow of water by the axial impeller 13 downward. Then, the lower end opening of the conduit 14 is fixed on the gantry 11 so as to match the water passage hole 12.

The funnel body 4 is supported by a support frame 15 to support the supporting plate 10 on each of the receiving plates 10 of the support column 8, while the central part of the funnel body 4 is aligned with the axial impeller 13 of the submersible mixer 3. 14 is supported. In addition, the outer peripheral part of the funnel body 4 may be configured to be supported by brackets or the like interposed between the receiving plates 10 instead of the support frame 15 of the present example.

The outlet pipe 5 has a bell mouth 5a at the lower end.
The upper end portion is fixed to the lower surface of the gantry 11 so that the upper end portion matches the water passage hole 12.

Reference numeral 16 denotes a guide blade which guides the stored water W at the outer periphery of the upper end of the funnel body 4 in a direction in which suction vortex is likely to occur. They are provided at equal intervals on the outer peripheral portion (see FIG. 3).

H is the suction depth, and the upper edge of the funnel 4 is submerged from the water surface L to an appropriate depth by setting the installation height S of the frame 2 based on the head and flow rate of the underwater mixer 3. The installation height S is set by selecting the connection height between the upper column 8a and the lower column 8b of the column 8, or by selecting the thickness of the base member 7.

Next, the operation of the above embodiment will be described.

When the underwater mixer 3 is activated, the funnel 4
The stored water W is sucked into the conduit 14 by the axial impeller 13. The water sucked into the conduit 14 is supplied to the underwater mixer 3
As a result, the water is forced to flow downward in the conduit 14, reaches the discharge pipe 5, and is discharged from the lower end face of the discharge pipe 5 to the pond bottom B so as to diffuse to the surroundings. The water blown out from the lower end face of the blow-out pipe 5 circulates inside the reservoir P by moving from the pond bottom B to the water surface L again.

At this time, the stored water W near the water surface supplied from the funnel body 4 to the underwater mixer 3 is supplied to the funnel body 4 because the funnel body 4 is installed at the position of the suction depth H. Is insufficient for the amount of water discharged from the underwater mixer 3.
Therefore, a suction vortex that attracts the atmosphere on the water surface L is generated inside the funnel body 4 (that is, the water surface L portion) with a large suction sound.

Suction vortex generator 1 shown in FIGS. 2 and 3
B is the suction vortex generator 1A provided with a reflux pipe 21.

The reflux pipe 21 is provided to return a part of the water flowing through the conduit 14 by the underwater mixer 3 to the inside of the funnel body 4. In this embodiment, two reflux pipes are provided. ing. Each of the reflux pipes 21 has a base end at the axial impeller 13.
Are respectively connected in the middle of the conduit 14 close to
The tips are connected to the funnel 4 respectively. As shown in FIG. 3, the distal end of each reflux pipe 21 is connected to the bottom surface of the funnel body 4, and the discharge port 2 at the distal end is provided.
1a has a long hole shape along the tangential direction of the outer peripheral edge of the funnel body 4 so that a swirling flow is generated inside the funnel body 4.
Part of the water flowing through the conduit 14 while being pressurized by the submersible mixer 3 flows into each of the reflux pipes 21, and enters the funnel body 4 that has been in a negative pressure state due to the generation of the suction vortex. Discharged vigorously. Discharge port 21a at the tip of each return pipe 21
Thereafter, the water is vigorously discharged along the tangential direction of the funnel body 4, so that the vortex generated in the funnel body 4 is in an increased state.

Therefore, the suction vortex inside the funnel body 4 is
Since the air is accelerated by the water discharged from the reflux pipe 21, the blowing noise is also stronger than in the case of the suction vortex generator 1A.

[0024]

According to the suction vortex generator of the present invention, the water in the funnel immersed below the water surface is flowed downward through the conduit by the underwater mixer, and is connected to the lower end of the underwater mixer. Since the water is blown out by the blowoff pipe so as to diffuse to the surroundings, a vortex with a large suction noise is generated on the water surface. As a result, landscapes such as reservoirs are in a state of change. Also, the water that entrained the air
Since the water is blown out so as to be diffused to the surroundings by the blow-out pipe, the bottom of the pond such as a reservoir is subjected to aeration treatment to purify water in the reservoir and the like. Furthermore, since the structure is simple and small, it can be manufactured at low cost, and the installation is extremely easy. In addition, the use of an underwater mixer provided with an axial flow impeller having a low head and a large flow rate has an excellent advantage that the operating cost can be greatly reduced.

Further, by circulating the discharge water to the funnel body by the return pipe, the vortex can be increased, so that the blowing noise is also increased, and the landscape is further improved. Aeration efficiency is also improved.

[Brief description of the drawings]

FIG. 1 is a front view showing an installation state of a suction vortex generator.

FIG. 2 is a front view showing an installation state of a suction vortex generator provided with a reflux pipe.

FIG. 3 is a plan view of the funnel in FIG. 2;

[Explanation of symbols]

 1A, 1B Suction vortex generator 2 Frame 3 Underwater mixer 4 Funnel 5 Blow-off tube 21 Reflux tube 21a Discharge port S Installation height H Suction depth B Pond bottom L Water surface P Reservoir

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Hei 2-30506 (JP, U) Japanese Utility Model Showa 61-31054 (JP, U) Special Table Japanese Patent Application Hei 2-501111 (JP, A)

Claims (2)

(57) [Scope of request for utility model registration] Claims: 1. It is installed at the bottom of a pond such as a reservoir.
A frame whose length in the downward direction can be changed and the upper edge of this frame is submerged from the water surface.
An inverted conical funnel body supported in a vertical state, and the water in the funnel body flows down below the funnel body.
A conduit vertically supported by the frame, and a conduit for allowing water flowing into the conduit to flow downward.
An underwater mixer placed inside the underwater mixer and connected to the lower end of the underwater mixer
Spread the water flowing downward by the sir to the surroundings
A suction vortex generator , comprising: a blow-off pipe for blowing . 2. The system according to claim 1, wherein said conduit has water flowing through said conduit.
A reflux pipe for refluxing part into the funnel is connected
The suction vortex generator according to claim 1 .