JP4164012B2 - Fountain equipment - Google Patents

Description

The present invention relates to a fountain apparatus that discharges water, for example, above a water surface of a pond to form, for example, a rod-shaped fountain column.

A conventional fountain apparatus is configured to connect a pressure pump to an injection nozzle disposed in water and discharge water pressurized by the pump upward from the injection nozzle to form a fountain column. Various contrivances have been made so that a fountain column is formed in, for example, a dome-like form to entertain human eyes (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 6-32870

However, the above-mentioned conventional fountain apparatus has a very complicated structure in order to obtain a creative and beautiful appearance, and even a skilled person requires careful attention and a long adjustment time. However, there is a problem that it is difficult to continuously maintain the required form.

The present invention has been made in view of the above-described conventional situation, and it is an object of the present invention to provide a fountain device capable of presenting a completely new appearance without complicating the structure of the device itself and requiring a long adjustment time. Yes.

The invention of claim 1 includes a fountain generating mechanism for forming a fountain column to extend upward by pressurizing and discharging water from an opening of the injection nozzle, and a gaseous fuel from the lower side of the opening of the injection nozzle. A fuel supply mechanism that mixes the water in the injection nozzle so as to form a bubble, and an ignition mechanism that ignites the gaseous fuel leaking to the surface of the fountain column that has passed through the opening of the injection nozzle. The fountain apparatus is characterized in that the fuel blown upward from the fountain column is ignited by the combustion flame of the leaked fuel, and a flame is formed above the fountain column .

Here, the fountain columns in the invention of claim 1 include not only those formed so as to be ejected above the water surface but also those formed simply in the air. The ignition mechanism includes not only an automatic type using a pilot burner or the like but also a manual type.

The invention of claim 2 is characterized in that, in claim 1 , the fuel is supplied to water after pressurization or water before pressurization.

According to a third aspect of the present invention, in the first or second aspect , the fountain generating mechanism is a submerged jet nozzle that is disposed in water and has a tip opening positioned near the water surface, and a pump that supplies pressurized water to the jet nozzle. The fuel supply mechanism includes a fuel supply source, a fuel supply passage connecting the fuel supply source in the middle of the injection nozzle, and a fuel pressure and a fuel interposed in the middle of the fuel supply passage. A flow rate adjusting valve for adjusting a flow rate, and the ignition mechanism includes a pilot burner disposed near an outlet of the injection nozzle and a spark rod for supplying an ignition spark to the pilot burner. It is a feature.

According to the invention of claim 1, a fountain column is formed by pressurizing and discharging water, and gaseous fuel is mixed in the water in a bubble shape, and the mixed fuel leaks out to the surface of the fountain column. Since the fuel is ignited, a flame can be formed on the upper side of the fountain column, a completely new appearance can be presented, and human eyes can be enjoyed.

  Various methods can be employed as the fuel mixing method in the present invention, and the fuel is supplied to pressurized water (water on the discharge side of the pump) or added as shown in the invention of claim 2. It is supplied to the pre-pressurized water (water on the pump suction side), and in any case, by igniting the mixed fuel, a novel appearance as if the fountain column is burning up can be exhibited.

According to the invention of claim 3 , pressurized water is supplied to the cylindrical injection nozzle by a pump, a fuel supply source is connected to the middle of the injection nozzle by a fuel supply passage, and a flow rate adjusting valve is provided to the middle of the fuel supply passage. Since a pilot burner is disposed near the outlet of the injection nozzle and an ignition spark is supplied to the pilot burner with a spark rod, it is possible to realize an appearance in which the fountain column is burning up.

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a configuration diagram schematically showing a fountain device according to an embodiment of the present invention.

In the figure, reference numeral 1 denotes a fountain device, which includes, for example, a fountain generating mechanism 3 installed in a fountain pond 2, a fuel supply mechanism 4 for mixing gas fuel into a fountain column by the fountain generating mechanism 3, and the fountain column. And an ignition mechanism 5 that ignites the mixed gas fuel.

The fountain generating mechanism 3 is installed on the bottom surface of the fountain pond 2, sucks water in the fountain pond 2, pressurizes it to a predetermined pressure and discharges it, and a flow rate / pressure regulating valve at the discharge port of the pump 6 7 and an injection nozzle 8 which is connected via 7 and extends vertically upward. The injection nozzle 8 has a cylindrical shape having a required diameter and length, and is arranged in the water so that the opening 8a at the upper end protrudes slightly above the water surface WL.

The fuel supply mechanism 4 connects a gas supply source (LP gas tank) 9 disposed outside the fountain pond 2 and a gas nozzle 10 a disposed so as to protrude into the injection nozzle 8. A gas supply passage 10, a needle valve and a pressure reducing valve interposed in the middle of the gas supply passage 10, a flow rate adjusting valve 11 b for adjusting the gas pressure and flow rate, and an electromagnetic shut-off valve for opening and closing the gas supply passage 10 11a and a check valve 11c that is interposed immediately upstream of the gas nozzle 10a and prevents the pressurized water from the pump 6 from flowing back to the gas supply source 9 side.

The ignition mechanism 5 is disposed in the immediate downstream of the opening 8a of the injection nozzle 8 and injects fuel gas toward the fountain column A. The ignition mechanism 5 communicates the gas supply passage 10 with the pilot burner 12a. A branch passage 10b, a flow rate adjusting valve 12c for adjusting a gas pressure and a flow rate, and an electromagnetic shut-off valve 12b for opening and closing the branch passage 10b, which are composed of a needle valve and a pressure reducing valve interposed in the middle of the branch passage 10b. ing.

The ignition mechanism 5 is connected to a spark rod 12d for generating an ignition spark at the discharge portion of the pilot burner 12a, and connected to the spark rod 12d by a high voltage cable 12e, and supplies a high voltage to the spark rod 12d. And an igniter 12f for generating a spark.

In the fountain device 1 of the present embodiment, the water in the fountain pond 2 is sucked and pressurized by the pump 6 of the fountain generating mechanism 3 and discharged from the injection nozzle 8 to form a fountain column A having a required shape. Further, the electromagnetic shut-off valve 12b of the branch passage 10b is opened to supply gas to the pilot burner 12a, and the pilot burner 12a is ignited by an ignition spark from the spark rod 12d. Then, at a predetermined flame formation timing, the electromagnetic shut-off valve 11a of the gas supply passage 10 is opened and gas is supplied into the injection nozzle 8 in the form of fine bubbles, and the flame from the pilot burner 12a in the opening 8a of the injection nozzle 8 When ignited, a large flame B is formed above the fountain column A so as to extend in the same direction as the fountain column. More specifically, part of the gas supplied in the injection nozzle 8 leaks to the outer surface of the fountain column A when passing through the opening 8a, and the leaked gas rises while burning, At the upper end portion of the fountain column A, the internal gas touches the outside air, and a large flame B is formed. In addition, since the amount of gas leaking to the outer surface of the fountain column A is small, even if it burns, it is hardly visible to the naked eye.

As described above, in this embodiment, the gas is mixed into the pressurized water from the pump 6 in the injection nozzle 8, and the gas is ignited in the vicinity of the opening 8a of the injection nozzle 8. A large flame B can be generated on the upper side of the glass, and a completely new appearance that has not been provided in the past can be presented, so that human eyes can be entertained.

In the above embodiment, gas fuel is used. However, in the present invention, liquid fuel can also be used. In the above embodiment, the gas fuel is supplied into the water pressurized by the pump 6. It is also possible to supply liquid fuel to the suction side 6.

Further, in the above embodiment, the case where a flame is formed on the upper side of the fountain column has been described, but in the present invention, it is also possible to form a flame inside the fountain column. It is desirable to supply the fuel previously mixed with air into the injection nozzle.

Moreover, although the case where it ignited near the opening part 8a of the fountain nozzle 8 was demonstrated in the said embodiment, there is no restriction | limiting about an ignition position, For example, you may ignite near the upper end of the fountain column A, and also about an ignition method For example, the ignition may be performed manually.

It is a mimetic diagram of a fountain device by one embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fountain device 3 Fountain generating mechanism 4 Fuel supply mechanism 5 Ignition mechanism 6 Pump 8 Injection nozzle 8a Tip opening 9 Fuel supply source 10 Fuel supply passage 11b Flow rate adjusting valve 12a Pilot burner 12b Spark rod A Fountain column B Flame
WL water surface

Claims (3)

A fountain generating mechanism that forms a fountain column extending upward by pressurizing and discharging water from an opening of an injection nozzle;
A fuel supply mechanism that supplies gaseous fuel from the lower side of the opening of the injection nozzle and mixes the water in the injection nozzle so as to form a bubble;
An ignition mechanism for igniting gaseous fuel leaking to the surface of the fountain column that has passed through the opening of the injection nozzle ;
A fountain apparatus characterized in that the fuel that blows upward from the fountain column is ignited by the combustion flame of the leaked fuel, and a flame is formed above the fountain column . The fountain apparatus according to claim 1, wherein the fuel is supplied to water after pressurization or water before pressurization. In Claim 1 or 2 , the fountain generating mechanism includes a cylindrical injection nozzle that is disposed in water and has a tip opening located near the water surface, and a pump that supplies pressurized water to the injection nozzle. The fuel supply mechanism includes a fuel supply source, a fuel supply passage that connects the fuel supply source in the middle of the injection nozzle, and a flow rate adjustment valve that is interposed in the middle of the fuel supply passage and adjusts the fuel pressure and the fuel flow rate. And the ignition mechanism includes a pilot burner disposed near the outlet of the injection nozzle and a spark rod for supplying an ignition spark to the pilot burner.

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