JP2001269605A - Fountain device and method of presenting fountain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To present a fountain having a peculiar figure composed of an under body part formed of a water film and an upper body part formed of water drops coupled to the under body part upper side. SOLUTION: A V-shaped notch 7 is formed at the tip part of a fountain nozzle 2 and the outlet of a nozzle hole 5 is formed into an arcuate hyperbolic long hole 6 having a major axis equal to the inside diameter (d) of the nozzle hole 5. By jetting water for fountain forcibly fed by a forcible feed pump 3 from the nozzle hole 5, the fountain 10 having the peculiar figure formed by coupling the under body part 8 formed from the water film and the upper body part 9 formed from the water drops to each other in the vertical direction is presented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fountain device and a method for producing a fountain. More particularly, the present invention relates to a peculiar body consisting of a lower body composed of a water film and an upper body composed of a group of water droplets continuous above the lower body. The present invention relates to a fountain device capable of performing a fountain in a figure and a method of producing a fountain.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 8, a vertical fountain nozzle 30, a pump 31 for pumping fountain water to the fountain nozzle 30, an inlet of the fountain nozzle 30 and a discharge port of the pump 31 are provided. A fountain water supply pipe 32 is provided for communication with the fountain nozzle 30. The inner diameter of the nozzle hole of the fountain nozzle 30 is small (2 to 3 m).
m), and a high-pressure water having a pressure of 0.5 MPa is ejected from a small-diameter nozzle hole by operation of the pressure-feeding pump 31 and is rapidly expanded in the atmosphere to form the mist group 33. ing.

On the other hand, as shown in FIG. 9 and FIG. 10, a horizontal axis water film screen forming nozzle 40 and a pressure pump 41 for pumping fountain water to the water film screen forming nozzle 40.
And a water supply pipe 42 for fountain, which connects the inlet of the water film screen forming nozzle 40 and the discharge port of the pressure pump 41, and closes the front end of the water film screen forming nozzle 40 with this plate 43. This plate 43 in
Notch the upper half of the vicinity to form an upward opening 44,
The high-pressure water flowing in the lateral direction introduced into the water film screen forming nozzle 40 by the operation of the pressure pump 41 is turned upward by the interference of the abutment plate 43 and ejected from the opening 44,
A water film screen forming apparatus for forming the water film screen 45 is already known.

[0004]

However, the former fountain device is merely capable of producing a mist fountain, and the latter water film screen forming device is merely capable of forming a water film screen. Is only possible. Therefore, it cannot be expected that the viewer will be satisfied with watching the novel fountain molding.

Accordingly, the present invention provides a unique fountain consisting of a lower body composed of a water film and an upper body composed of a group of water droplets continuous on the upper side of the lower body. It is an object of the present invention to provide a fountain device and a fountain effect method that can be expected to give a sense of satisfaction that the fountain modeling has been enjoyed.

[0006]

According to a first aspect of the present invention, there is provided a fountain device comprising: a fountain nozzle; and a pump for pumping fountain water to the fountain nozzle. The outlet of the nozzle hole of the fountain nozzle is characterized by being formed as a long hole whose major axis is the inner diameter of the nozzle hole.

[0007] In the invention according to claim 2, the exit cross section of the nozzle hole is concave.

Further, in the invention according to claim 3, the inner diameter of the nozzle hole is set in the range of 10 mm to 32 mm, and the pressure of the fountain water pumped to the fountain nozzle by the pump is 0.02 MPa to 0 MPa. .15 MPa.

Further, in order to achieve the above object, a method for producing a fountain according to a fourth aspect of the present invention provides a method for producing a fountain by pumping at least one fountain nozzle having an inner diameter of a nozzle hole set in a range of 10 mm to 32 mm. The pressure is reduced to 0 by the pump.
The water for fountain set in the range of 02 MPa to 0.15 MPa is pumped, and the water for fountain is ejected from a long hole having a long axis with an inner diameter of the nozzle hole formed at the outlet of the nozzle hole, and the water film is used. It is characterized in that a fountain consisting of a lower body portion and an upper body portion formed by a group of water droplets continuous on the upper side of the lower body portion is performed.

According to the fountain device according to the first aspect of the present invention, since the outlet of the nozzle hole is formed as a long hole whose major axis is the inside diameter of the nozzle hole, the size of the short axis of the long hole is reduced. Spout from the outlet of the nozzle hole with the equivalent thickness as the minimum thickness,
As the distance from the outlet of the nozzle hole increases, the wall thickness increases slightly, and a width substantially corresponding to the long axis dimension of the long hole is ejected from the outlet of the nozzle hole with a minimum width, and the nozzle leaves the outlet of the nozzle hole. The lower part made of a water film whose width gradually increases in accordance with the above, and the upper part made up of water droplets whose thickness is slightly larger than this lower part and whose width is substantially on the extension of the lower part is vertically oriented With this, a continuous fountain can be performed. The morphological change from the lower body part formed by the water film to the upper body part formed by the water droplet group is such that the high-speed flow of the jet water capable of forming a water film is reduced to the point of the morphological change into the water droplet group due to the surface tension of the water. Done by

According to the second aspect of the present invention, it is easy to form a long hole.

According to the third aspect of the invention, it is possible to perform a fountain in which the clear lower body portion and upper body portion are vertically continuous.

According to the fountain production method according to the fourth aspect of the present invention, the thickness substantially corresponds to the dimension of the minor axis of the long hole whose major axis is the inner diameter of the nozzle hole set in the range of 10 mm to 32 mm. The thickness is spouted from the outlet of the nozzle hole as the minimum thickness, and as the distance from the outlet of the nozzle hole increases slightly, the width substantially corresponds to the long axis dimension of the long hole,
In other words, the lower portion made of a water film whose width is gradually increased as the distance from the outlet of the nozzle hole is spouted from the outlet of the nozzle hole with the width substantially corresponding to the inner diameter of the nozzle hole as the minimum width, and The upper part composed of water droplets whose thickness is slightly increased and whose width is substantially on the extension of the lower part can produce a fountain that is continuous in the vertical direction.

[0014]

An embodiment of the present invention will be described below with reference to the drawings. 1 is a system diagram showing an embodiment of a fountain device according to the present invention, FIG. 2 is a vertical sectional front view of a fountain nozzle, FIG. 3 is a plan view of FIG. 2, and FIG. 4 is an enlarged view of FIG. In FIG. 1, a fountain device 1 includes a vertical fountain nozzle 2, a pump 3 for pumping fountain water to the fountain nozzle 2, and a fountain water supply for connecting an inlet of the fountain nozzle 2 and a discharge port of the pump 3. A tube 4 is provided.

The nozzle hole 5 of the fountain nozzle 2 has a perfect circular cross section with a uniform inner diameter d, and the inner diameter d is 10 mm to 32 m.
m.

The outlet of the nozzle hole 5 has an inner diameter d of the nozzle hole 5 as a major axis Ld and a minor axis S orthogonal to the major axis Ld.
d, and the ratio of the major axis Ld to the minor axis Sd is 1: 0.5-0.
It is formed in a long hole 6 of an arc-shaped hyperbola set in the range of 7. The bottom of the fountain nozzle 2 is positioned on one straight line YY of two straight lines XX and YY orthogonal to each other through the center O of the nozzle hole 5. A V-shaped notch 7 is provided which extends toward the surface 2A with an inner angle θ of 90 to 100 degrees and has a width W on the straight line XX set slightly larger than the inner diameter d of the nozzle hole 5. Can be formed. That is, by making the exit cross section of the nozzle hole 5 concave, the arc-shaped hyperbolic slot 6 can be easily formed.

In the above configuration, the pressure from the pressure pump 3 to the nozzle hole 5 of the fountain nozzle 2 is 0.02 MPa to 0.1.
The fountain water set in the range of 5 MPa is pumped, and the fountain water is ejected from the arc-shaped hyperbolic slot 6 formed at the outlet of the nozzle hole 5. Thereby, FIGS. 5 and 6
As shown in the figure, the thickness t, which substantially corresponds to the dimension of the short axis Sd of the long hole 6 of the arc-shaped hyperbola, is set to the minimum thickness, and the thickness t increases slightly as the distance from the outlet of the nozzle hole 5 increases (t).
In addition to 1), the width w substantially corresponding to the dimension of the major axis Ld of the long hole 6 of the arc-shaped hyperbolic shape is set to the minimum width, and the width gradually increases as the distance from the outlet of the nozzle hole 5 increases. The upper part formed by the part 8 and the thickness t2 of the rising area slightly larger than the thickness t1 of the lower body part 8, and the maximum width w2 of the rising area is formed by a group of water droplets existing substantially on the extension of the lower body part 8. 9 can produce a fountain 10 that is continuous in the up-down direction, that is, a fountain 10 in a unique form. Therefore, it can be expected that the viewer will be satisfied with watching the novel fountain molding.

The morphological change from the lower body 8 composed of the water film to the upper body 9 composed of the water droplets is caused by the point at which the high-speed flow of the jetted water capable of forming the water film changes the morphology into water droplets due to the surface tension of the water. Is done by lowering.

The inner diameter d of the nozzle hole 5 is 10 mm to 32 mm
And the fountain nozzle 2
Pressure of the fountain water pumped to
Since it is set in the range of 5 MPa, a clear lower body 8
Fountain 10 with a unique appearance in which the upper part 9 and the upper part 9 are continuous in the vertical direction
Can be produced.

That is, the inner diameter d of the nozzle hole 5 is 10 mm
Less than or more than 32 mm, the fountain water pressure is 0.02
Experiments have confirmed that if the pressure is lower than MPa or higher than 0.15 MPa, it is difficult to produce a fountain 10 in which the clear lower body 8 and upper body 9 are continuous in the vertical direction. Therefore, it is preferable that the inner diameter d of the nozzle hole 5 is set in the range of 10 mm to 32 mm, and the pressure of the fountain water pumped to the fountain nozzle 2 by the pump 3 is set in the range of 0.02 MPa to 0.15 MPa.

On the other hand, the inner diameter d of the nozzle hole 5 is 10 mm to 3 mm.
The fountain water pressure set to a range of 2 mm and pumped to the fountain nozzle 2 by the pump 3 is 0.02 MPa to
Even if it is set in the range of 0.15 MPa, the nozzle hole 5
The ratio of the long axis Ld to the short axis Sd of the long hole 6 of the arc-shaped hyperbolic hole formed at the outlet of the nozzle hole exceeds 1: 0.7, and the shape of the outlet of the nozzle hole 5 approaches a perfect circle, Long axis Ld and short axis Sd
It has been confirmed by an experiment that the lower portion 8 made of a water film is not formed when the ratio of the ratio is less than 1: 0.5 and the shape of the outlet of the nozzle hole 5 is excessively elongated. Therefore, it is preferable to set the ratio between the major axis Ld and the minor axis Sd in the range of 1: 0.5 to 0.7.

In the above embodiment, the fountain device 1 using one fountain nozzle 2 has been described. However, a fountain device using a plurality of fountain nozzles 2 may be used. Also, the width dimension W at the outlet of the nozzle hole 5 is the inner diameter d of the nozzle hole 5.
Although the V-shaped notch 7 which is slightly larger than that, that is, the exit cross section of the nozzle hole 5 is made concave, the configuration is described in which the long hole 6 of the arc-shaped hyperbola can be easily formed.
The V-shaped notch 7 may be omitted, and the outlet of the nozzle hole 5 may be formed so as to be gradually deformed from a perfect circle into an arc-shaped hyperbolic slot 6 to form the arc-shaped hyperbolic slot 6. .

The outlet of the nozzle hole 5 is replaced with the long hole 6 of the arc-shaped hyperbola described in the above embodiment, and FIG.
, An oval shape shown in FIG. 7A, or a rectangular shape shown in FIG. 7C.

[0024]

As described above, since the present invention is constituted, the following special effects can be obtained.

That is, the fountain water is spouted from the long hole formed at the outlet of the nozzle hole, and the fountain in a unique form in which the lower body composed of a water film and the upper body composed of water droplets are vertically continuous. Can be produced clearly. Therefore, it can be expected that the viewer will be satisfied with watching the novel fountain molding.

[Brief description of the drawings]

FIG. 1 is a system diagram showing an embodiment of a fountain device according to the present invention.

FIG. 2 is a vertical sectional front view of a fountain nozzle.

FIG. 3 is a plan view of FIG. 2;

FIG. 4 is an enlarged view of FIG. 3;

FIG. 5 is a front view showing an effect example of a fountain.

FIG. 6 is a side view of FIG. 5;

FIG. 7 is a plan view showing a modified example of a long hole.

FIG. 8 is a system diagram of a conventional fog fountain device.

FIG. 9 is a system diagram of a conventional water film screen forming apparatus.

FIG. 10A is a view showing the state of formation of the water film screen;
FIG. 3 is a sectional view taken along line A.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 fountain device 2 fountain nozzle 3 pressure pump 5 nozzle hole 6 long hole of arc-shaped hyperbola (long hole) 8 lower body composed of water film 9 upper body composed of water droplet group 10 fountain in unique form (fountain) 17 two-way electromagnetic Switching valve (switching valve) E High-pressure air W Fountain water

Claims (4)

[Claims] 1. A fountain nozzle, and a pressure pump for pumping fountain water to the fountain nozzle, wherein an outlet of a nozzle hole of the fountain nozzle is formed in a long hole whose major axis is the inner diameter of the nozzle hole. A fountain device characterized by that: 2. The fountain device according to claim 1, wherein an outlet cross section of said nozzle hole is concave. 3. An inner diameter of the nozzle hole is 10 mm to 32 m.
m, and the pressure of the fountain water pumped to the fountain nozzle by the pump is 0.02 MPa or more.
The fountain device according to claim 1, wherein the fountain device is set in a range of 0.15 MPa. 4. A pressure of 0.02 MPa to 0.15 MPa by a pressure pump to at least one fountain nozzle having an inner diameter of the nozzle hole set in a range of 10 mm to 32 mm.
Pumping the fountain water set in the range of, spraying the fountain water from a long hole having a long axis with the inner diameter of the nozzle hole formed at the outlet of the nozzle hole, a lower body part formed by a water film, A method for producing a fountain, comprising: performing a fountain comprising an upper body composed of a group of water droplets continuous on an upper side of the lower body.