JPH09103724A - Fountain method using compressed air and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a fountain of a firework-shaped pattern by using compressed air. SOLUTION: This invention relates to a method in which air is compressed and fed to a water supply circuit provided with a fountain port 3 at the tip thereof together with water to form a fountain. Compressed air is intermittently fed from the upstream side of a pressurizing chamber 4 of prescribed volume formed on the upstream side of the fountain port 3. An air piston is formed in the pressurizing chamber 4 by the compressed air to instantaneously jet water on the downstream side of the air piston, thus controlling the shape and the action of the fountain to a desired form. An air supply path 6 for feeding compressed air is connected to an air supply path 2 on the upstream side of the fountain port 3. The pressurizing chamber 4 which is composed of a tubular flowing water space and in which an air piston is formed on the upstream side of water on the fountain port 3 side by supplied compressed air and in which water on the downstream side of the air piston is discharged to the fountain port 3, is formed between the fountain port 3 and the connecting part of the air supply path 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fountain method and apparatus using compressed air.

[0002]

2. Description of the Related Art Conventionally, fountains have generally been produced by ejecting pressure water from a fountain nozzle and creating various fountain shapes and movements by controlling the nozzle shape, water pressure or valves. This is limited to the case where the water is made into a jet water state or the case where it is made into a mist state. In this case, the air is jetted in a mixed state of water.

[0003]

SUMMARY OF THE INVENTION According to the present invention, compressed air is supplied to a fountain to form an air piston on the upstream side of the fountain with compressed air instead of the above-mentioned simple fog or jet water fountain. The present invention provides a method and apparatus for forming a fountain having various shapes and motions by changing the instantaneous water ejection amount and ejection timing.

[0004]

A method of the present invention for solving the above-mentioned problems is a method of forming a fountain S by pressurizing and supplying air together with water to a water supply circuit having a fountain port 3 at its tip. Compressed air is intermittently supplied from the upstream side of a pressurizing chamber 4 having a predetermined capacity formed on the upstream side of the water fountain 3, and the compressed air forms an air piston in the pressurizing chamber. The feature is that the shape and operation of the fountain S are controlled to a desired shape by instantaneously ejecting water.

Similarly, the first feature of the device of the present invention is that in the device in which the air supply path 6 for supplying compressed air is connected to the water supply path 2 on the upstream side of the fountain opening 3, the fountain opening 3 and the air supply path are connected. 6) A tubular running water space having a predetermined volume is formed between the connecting portion and the connecting portion, and an air piston is formed on the upstream side of the water on the side of the fountain 3 by the supplied compressed air. 3 is that a pressurizing chamber 4 for discharging to 3 is formed.

A second feature is that a check valve 7 is provided upstream of the connection portion of the air supply passage 6 in the water supply passage 2 to prevent reverse negative pressure to the water supply source side when compressed air is supplied. is there.

Similarly, the third feature is that an electromagnetic valve 8 for switching and controlling the air supply is provided so that the compressed air is intermittently supplied to the compressed air supply passage.

[0008]

1 is a front view showing an example of a fountain unit 1 of an apparatus according to the present invention, in which a pump 5 is connected to a water source side of a water supply passage 2 which is piped in a fountain basin or the like. A fountain nozzle 3 is attached as a fountain port on the tip end side of 2, and a cylinder-shaped pressurizing chamber 4 having a predetermined volume and serving as a water supply passage is provided on the upstream side adjacent to the fountain port 3. Further, a tip end of a compressed air supply pipe 6 is connected and opened on an upstream side of the pressurizing chamber 4, and an upstream water supply source is provided on a downstream side of a water supply passage 2 of a connecting portion to which the air supply pipe 6 is connected. A check valve 7 is provided on the side so as not to exert an influence of the reverse negative pressure of the compressed air. Reference numeral 8 is a solenoid valve provided in the air supply pipe 6 for switching the supply of compressed air to the pressurizing chamber 4 between the on and off states.

In the illustrated example, the nozzle diameter is 17 mm, the nozzle length is 100 mm, the pressure chamber pipe diameter is 25 mm, and the pressure chamber pipe length is 700 mm.
mm, water supply pipe diameter 40 mm, air supply pipe diameter 8 mm is used, and the opening / closing timing of the solenoid valve 8 is controlled by a sequencer, for example, a closing time of 0.1 to 10 seconds.
c, the opening time is preset within a range of 0, 01 to 5 seconds, etc. and controlled. The air supply pressure is also set within the range of about 0.5 to 7 kg / cm, and automatic control is possible if necessary. Similarly, the supply water pressure is set to about 0.1 to 3 kg / cm, and any of these values can be freely set depending on the fountain formation to be obtained.

The fountain unit 1 is mounted by mounting a mounting bracket 9 for supporting valves such as a check valve 7 on a mounting base 12 fixed on a floor 11 of a fountain basin. These fountain units 1 are used for water supply mains 13
And a plurality of air supply mains 14 are connected in parallel. In this example, the water supply amount and the water supply pressure of each unit 1 are common, but the opening / closing timing of the solenoid valve 8 on the air supply pipe side is different for each unit. You can control different things.

FIG. 3 shows an example of the actual arrangement of a large number of fountain units 1 by means of the above-mentioned piping, in which the wave-eliminating plate 16 is arranged on the water surface (W / L) or below the water surface in a circular pipe. Then, the fountain S is jetted and formed from the nozzle 3 of each unit.

FIGS. 4 to 7 show examples of changes with time in the formation process of the specially shaped fountain according to the present invention, of which FIGS.
Is the fountain S ejected through the pressurizing chamber 4 and the nozzle 3.
However, an example in which the elements are dispersed and deformed by the wind pressure (air resistance) received by the jet speed of water is shown. That is, in the case of FIG. 4, when the air pressure is 5 kg and the closing time of the solenoid valve 8 is 0.1 sec or more and the opening time is 0.01 sec, the first fountain S ₁ is crushed and diffused by the wind pressure into a circular umbrella shape. As a result, the next fountain S ₂ is ejected and undergoes similar deformation, and such changes are repeated at arbitrary time intervals.

At this time, the cylinder-shaped pressurizing chamber 4 is continuously supplied with water from the water supply pipe 2 and a predetermined amount of water is stored therein. The compressed space (air piston) formed by air instantly ejects from the nozzle 3 to form the fountains S ₁ , S _2, ..., However, due to the action of the check valve 7, back pressure to the water supply source side is produced. Is blocked. When the amount of water is small with respect to the compressed air, it is jetted in the form of jet water or mist.

In FIG. 5, the air pressure is 4.5 kg / cm, the electromagnetic valve closing time is 1.0 sec, and the opening time is 0.01 sec.
The change of the fountain S in the case of c is shown. In this case, one fountain receives the air resistance (wind pressure) at the time of ejection and diffuses into a spherical shape.

[0015] Figure 6-7 Other changes due wind pressure both to fountain for _{S 1} of the two fountains _S 1, _{S 2} is intermittently ejected by the subsequent fountain _{S 2} is rear-ended, the This is an example in which the fountain S is formed by being diffused under the influence of a rear impact.

In the example shown in FIG. 6, the air pressure is 3.5 kg / c.
m, solenoid valve closing time 0.5 sec, opening time 0.02 sec
Then, the subsequent fountain S ₂ collides against the preceding fountain S ₁ whose ejection velocity has decreased, and a synthetic fountain of fountains S ₁ and S ₂ is formed, and a new fountain S ₃ is formed on the upper axis line by this rear impact, In the same figure (C), the generated fountain S ₃ diffuses upward like a saw, but the synthetic fountains S ₁ and S ₂ are reduced in rising energy and reduced to a small spherical shape.

Similarly, in FIG. 7, the air pressure is 4.5 kg / cm, the electromagnetic valve closing time is 0.7 sec, and the opening time is 0.06 sec. The succeeding fountain S ₂ collides with the preceding fountain S ₁ whose ejection speed has decreased. While continuing to rise, it diffuses into a spherical shape, and at this time, a linear water column is formed so as to penetrate on the upper and lower axes. Further, in FIGS. 8A to 8E, the subsequent fountain S ₂ rapidly ejected by the air is rear-end collision-dispersed as shown in FIG. 8C with respect to the water columnar fountain S ₁ .
The case where the change is as shown in (D) is shown, and the fountain due to the water pressure and the fountain due to the air pressure are combined.

In addition to the above, according to the present invention, FIG.
As shown in (E), it is possible to form various patterns of fountains by changing the water pressure, the water amount, the air pressure, and the electromagnetic valve opening / closing time by the same device. By changing the nozzle shape, the structure and volume of the pressurizing chamber 4, and the like, it is possible to obtain innumerable patterns of fountains ejecting in a fireworks pattern.

Further, by combining fountains of these various patterns, it is possible to form an original fountain group by combining various fountains in one fountain, and further add lighting effects, acoustic effects, etc. This will enable a more varied fountain design.

[0020]

According to the present invention configured as described above, it is possible to instantaneously form a fireworks-shaped fountain, which has heretofore been impossible, and in addition to changing the device settings such as the nozzle shape, There is an advantage that a myriad of fountain shapes and combinations of them are possible by setting the supply pressure of air and water, the supply amount, and the timing of pressurization by air. The fountain also has a high lighting effect because it is dispersed by mixing minute water droplets by air or wind pressure.

[Brief description of the drawings]

FIG. 1 is a front view of a fountain unit of the present invention.

FIG. 2 is a main part piping diagram of the fountain device.

FIG. 3 is a plan view of an example of piping of a fountain device.

4A to 4E are explanatory views showing a changing process of a fountain.

5A to 5C are explanatory diagrams showing a changing process of a fountain.

6A to 6C are explanatory views showing a changing process of a fountain.

7A to 7C are explanatory views showing a changing process of a fountain.

8A to 8E are explanatory views showing a changing process of a fountain.

9A to 9E are explanatory views showing examples of various fountains other than the above.

[Explanation of symbols]

1 Fountain Unit 2 Water Supply Channel 3 Fountain Port (Nozzle) 4 Pressurizing Chamber 6 Air Supply Channel 7 Check Valve 8 Solenoid Valve S, S ₁ , S ₂ , S ₃ Fountain

Claims (4)

[Claims] 1. A method for forming a fountain (S) by pressurizing and supplying air together with water to a water supply circuit having a fountain (3) at its tip, wherein a predetermined volume formed upstream of the fountain (3). By intermittently supplying compressed air from the upstream side of the pressurizing chamber (4), forming an air piston in the pressurizing chamber by the compressed air, and instantaneously ejecting water on the downstream side of the air piston. A fountain device that uses compressed air to control the shape and operation of the fountain (S) to a desired shape. 2. A device in which an air supply passage (6) for supplying compressed air is connected to a water supply passage (2) upstream of the fountain opening (3), wherein the fountain opening (3) and the air supply passage (6) are provided. A tubular running water space of a predetermined volume is formed between the connecting portion and the compressed air, and an air piston is formed on the upstream side of the water on the side of the fountain (3) by the supplied compressed air. A fountain device using compressed air in which a pressurizing chamber (4) for discharging to a mouth (3) is formed. 3. An air supply passage (6) in the water supply passage (2).
3. The fountain apparatus using compressed air according to claim 2, further comprising a check valve (7) provided upstream of the connection portion of the check valve for preventing reverse negative pressure to the water supply source side when compressed air is supplied. 4. A solenoid valve (8) for switching and controlling the air supply so that the compressed air is intermittently supplied to the compressed air supply passage.
A fountain device using compressed air according to claim 2 or 3.