JPH0512802B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention uses a running water film forming device, more specifically, a water pumping means to raise water to a predetermined height and drop it in the form of a water film, and use the running water film to close a closed space. Concerning types of fountains and artificial waterfalls that form.

(Prior Art) Conventionally, some fountains and artificial waterfalls are equipped with lighting devices such as colored lights to illuminate the fountain in various colors.

However, there have never been any fountains or artificial waterfalls that pursue beauty by combining water and gas flames.

(Problems to be Solved by the Invention) The present invention has been made in view of the current situation, and its purpose is to create a mysterious and elegant atmosphere that cannot be obtained with illumination such as colored lights, using the combustion flame of water and gas. The idea is to create fountains and artificial waterfalls.

(Means for Achieving the Object) In order to achieve the above object, a running water film forming device such as a fountain or an artificial waterfall of the present invention is provided in a closed space formed by a falling running water film. a gas burner that forms a flame toward the gas burner; a fuel supply means that connects a fuel gas supply source outside the closed space to the gas burner via a gas supply path to supply fuel gas to the gas burner; The provided air supply blower is connected to the gas supply path near the gas burner via the primary air supply path, and the fuel gas is supplied to the combustion source 1.
a primary air supply means for premixing secondary air; and a secondary air supply means for connecting the inside of the closed space to the outside of the closed space via a secondary air supply path, and supplying the outside air to the vicinity of the gas burner in the closed space. It comprises an air supply means, and a combustion gas discharge means that connects the inside of the closed space to an exhaust blower provided outside the closed space via an exhaust passage, and discharges combustion exhaust gas in the closed space to the outside of the closed space. be.

Then, in order to color the gas combustion flame in a desired color, an aqueous metal chloride solution is atomized in the middle of the gas supply path or the primary air supply path, and a mist of the aqueous metal chloride solution is supplied to these supply paths. A mist generator is provided to mix the mist into the fuel gas either directly or via the primary air.

In addition, in order to vary the color of the gas combustion flame, multiple mist generators that atomize different types of aqueous metal chloride solutions are installed in parallel, and these multiple mist generators can be controlled as desired by the controller. Activate the switch to .

(Function) In fountains and artificial waterfalls configured as described above, gas burns in a closed space formed by a falling water film. This can be seen from the outside through the running water film.

At this time, the primary air and secondary air necessary for combustion are 1
The combustion exhaust gas is supplied from the outside of the closed space via the secondary air supply means and the secondary air supply means, and the combustion exhaust gas is discharged to the outside of the closed space via the combustion gas discharge means.

In addition, the mist of the metal chloride aqueous solution generated by the mist generator is mixed with the fuel gas either directly or by being carried into the primary air, and the metal chloride in the combustion flame is Color objects according to their color.

By sequentially switching the operations of the plurality of mist generators, the type of metal chloride supplied to the combustion section is switched, and the color of the flame changes sequentially due to the flame color reaction of the metal chloride.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

In FIG. 1, the running water film forming device is a fountain, and a water pump J is set up in the center of a pond or tank-shaped water storage part I, and a water outlet 1 is provided at the bottom of the water storage part I.
0 and a water intake port 11 provided at the bottom of the water pump J are connected through a water supply channel 13 having a circulation pump 12, and when the circulation pump 12 operates, the water in the water storage section I is transferred to the water pump J.
It has a basic structure and form conventionally known as a fountain that pumps up water into the water tank and jets it out from the upper end of the pipe J to fall into the water storage part I. A water spouting guide 14 is provided to surround the water and cause the water to fall in the form of a running film.

The water discharging guide 14 has a guide surface 1 inclined outwardly and upwardly at a required angle (for example, 30°) on the lower surface of the periphery.
5, is screwed onto a support 27 provided in the water pump J, is horizontally attached to a screw rod 28 that stands up on the axis of the water pipe J, and has a slight gap from the upper end of the water pipe J.

The water spouted from the upper end of the water pump J collides with the water discharge guide 14, is guided by the guide surface 15, spreads around the water pump J, and once rises obliquely upward along the guide surface 15. It falls and forms a roughly bell-shaped running water film a around the water pump J.

Therefore, this running water film a forms a closed space b together with the reservoir water surface of the water reservoir I.

In addition, the above-mentioned running water film a is connected to the water discharge guide 14 and the water pump J.
The thickness can be adjusted by adjusting the gap at the upper end.

In addition to the basic structure and form described above, this fountain also includes a gas burner A, a fuel supply means C that supplies fuel gas to the gas burner A, a primary air supply means D for combustion, and a secondary air supply means. Supply means E;
A combustion gas discharge means F is provided for discharging combustion gas generated by combustion of gas in the gas burner A.

The gas burner A and the secondary air blowing tube 16 of the secondary air supply means E are provided integrally with the water pumping tube J.

That is, the secondary air supply means E is formed by forming a secondary air blowing cylinder 16 in a cylindrical shape concentric with the lifting cylinder J surrounding the outer periphery of the lifting cylinder J, and opening the starting end of the secondary air blowing cylinder 16 in the middle part. A secondary air supply path 4 with an air intake blower 37 interposed therebetween is connected, and the gas burner A further surrounds the outer periphery of the secondary air blow-off tube 16 and is concentric with the secondary air blow-off tube 16 and the water pump J. It is formed into a cylindrical shape and the gas supply path 1 of the fuel supply means C is connected to it.

Further, the secondary air supply means E is the secondary air blowing pipe 1.
A slit-shaped outlet 19 opening in the circumferential direction is formed by outwardly projecting flange-like protrusions 17 and 18 provided at the upper end of 6 and the upper end of the water pumping tube J, respectively. A slit-shaped flame port 21 that opens in the circumferential direction is formed by the protruding piece 20 that protrudes in the direction and the protruding piece 17 provided at the upper end of the secondary air blowing cylinder 16.

The flame port 21 may be opened horizontally, but
If the opening is slightly (for example, 30°) diagonally downward, it is easier for the flame to follow the running water film a, and it is easier to prevent the flame from breaking through the running water film.

The water pumping tube J, the secondary air blowing tube 16 and the gas burner A each penetrate through the bottom of the water storage section I.
It extends downward, and the water supply channel 13, the secondary air supply channel 4, and the gas supply channel 1 are connected to the open space e formed below the water storage section I in the installed state, respectively.

The secondary air blow-off tube 16 and the gas burner A can also be arranged inside out and out with respect to each other. A gas flow rate control device 22 and an on-off valve 23 are sequentially provided in the gas supply path 1, and a primary air supply means D is connected downstream of the on-off valve 23.

The primary air supply means D consists of a primary air supply blower 2 and a primary air supply path 3 whose starting end is connected to the blower 2 and whose rear end is connected to the gas supply path 1. The passage 3 is provided with an on-off valve 24 .

On the other hand, the combustion gas discharge means F includes a water pump J in the center of the water storage part I, a secondary air blow-off pipe 16, and a gas burner A.
A cylindrical exhaust pipe 25 is formed so that its upper end is higher than the water line of the water storage part I, and the exhaust passage 6 is connected from the bottom of the exhaust pipe 25 to the water storage part I.
An exhaust blower 5 is provided in this exhaust passage 6 by drawing it out into the lower empty chamber e.

Note that an exhaust pipe 25 is located slightly above the exhaust pipe 25.
A skirt-shaped cover 26 is provided to cover up the exhaust pipe 25 and prevent water falling from above from entering the exhaust pipe 25.

Next, in the embodiment shown in FIG. 3, a mist generator G is interposed in the middle of the primary air supply path 3.

In the case of this embodiment, the mist generator G is provided with a vibrator 9 electrically connected to a high-frequency current oscillator 8 at the bottom of a closed container 7, and a metal chloride aqueous solution d is placed in the closed container 7 above the liquid surface. The high-frequency current oscillator 8 is supplied with power to generate a high-frequency current, vibrating the vibrator 9, and the generated ultrasonic waves cause the metal chloride aqueous solution d to dissolve near the liquid surface. The air molecules are vibrated violently to generate air bubbles, and when the air bubbles burst, a mist is generated. It is desirable to affix titanium foil or the like to the surface of the vibrator 9 to prevent corrosion thereof.

Thus, the metal chloride aqueous solution mist generated by the mist generator G mixes with the primary air passing through the space above the liquid level of the airtight container 7 of the mist generator G, and is supplied to the gas supply path 1. , is supplied to gas burner A together with the gas.

Therefore, when the gas burner A is ignited, the flame color reaction of the metal chloride causes the flame to be colored in a color corresponding to the metal chloride.

The metal chloride aqueous solution d is, for example, KCl,
It is a 10% aqueous solution of _BaCl2 , _CaCl2 , LiCl, _CuCl2 , for KCl _the flame is colored pink, for BaCl2
is yellow, CaCl ₂ is red-orange, LiCl is red,
In CuCl ₂ , each is colored green.

In the embodiment shown in FIG. 4, a plurality of, specifically four, mist generators G ₁ , G ₂ , G ₃ , and G ₄ are arranged in parallel, each containing a different metal chloride aqueous solution in a closed container 7. The primary air supply path 3 branches into four lines in the middle, and each branch is connected to each mist generator.
It connects to the airtight container 7 of G ₁ , G ₂ , G ₃ , G ₄ , and also connects to the airtight container 7 of each mist generator G ₁ , G ₂ , G ₃ , G ₄ again.
They are assembled into a book and connected to the gas supply path 1.

A controller H using a microcomputer is connected to the high frequency current oscillator 8 of each mist generator _G1 to _G4 , and the controller H performs desired control, for example, controlling the first mist generator _G1 to the fourth mist generator G1. Control is performed to switch and operate up to G ₄ in sequence at a predetermined time.

Therefore, when the metal chloride aqueous solution d contained in the airtight container 7 of each mist generator G ₁ , G ₂ , G ₃ , G ₄ is an aqueous solution of KCl, BaCl ₂ , CaCl ₂ , LiCl, respectively, the controller H start switch 29
When is pressed, power is first supplied to the high frequency current oscillator 8 of the first mist generator _G1 to generate a mist of KCl aqueous solution.
It mixes with the primary air in the primary air supply path 3 passing through G ₁ and is supplied to the gas supply path 1, and is supplied to the gas burner A together with the gas.

Therefore, when gas burner A is ignited, the flame is colored pink due to the flame color reaction of KCl.

Then, after a predetermined period of time has elapsed, the operation of the first mist generator G ₁ is stopped, and the second mist generator G ₂ is activated instead. In the same manner, the operation of the third and fourth mist generators G ₃ and G ₄ is sequentially switched, and this is repeated until the stop switch 30 is pressed.

When the second mist generator G ₂ is operating,
A mist of an aqueous solution of BaCl ₂ is supplied to gas burner A, and the flame is colored yellow due to the flame color reaction of BaCl ₂ , and the color of the flame changes from pink to yellow.

Next, when the third mist generator G ₃ is activated, a mist of CaCl ₂ aqueous solution is supplied to the gas burner A, and the flame is colored red-orange due to the flame color reaction of CuCl ₂ .
The color of the flame changes from yellow to red-orange.

In addition, a fourth mist generator G 3 is installed instead of the third mist generator G ₃ .
When the mist generator _G4 is activated, a mist of LiCl aqueous solution is supplied to the gas burner A, and the flame is colored red due to the flame color reaction of LiCl, and the color of the flame changes from red-orange to red.

Next, the embodiment shown in FIG. 5 is not substantially different from the embodiment shown in FIG. Water is ejected from the water pump J at a certain point to form a water pipe J, and the ejected water is applied to the water discharge guide 14 above the water pump J, and the guide surface 15 forms a bell-shaped running water film. This is different from the embodiment shown in FIG. 4, which is guided to fall.

The water pumping tube J is provided with an eave-shaped overflow guide 31 that protrudes outward and curves downward at the upper end periphery in order to separate the overflow water from the peripheral surface on the side of the water pumping tube J and allow it to fall in a film form. An exhaust cover 26 is positioned slightly above the water line and protrudes like a brim, and a gas burner A and an air blowing pipe of the secondary air supply means E are provided in a space below the overflow guide 31 where water is not splashed. 32 is disposed, and an exhaust pipe 25 is disposed between the cover 26 and the water line of the water storage portion I.

The gas burner A has a ring-shaped pipe surrounding the water pump J, and the overflow guide 3 of the water pump J
1 This overflow guide 31 is located close to the bottom surface.
It is disposed near the tip, and a slit-shaped burner port 21 is formed slightly downward on its outer periphery, and projecting piece-shaped frame guides 33 are provided relatively protruding along both side edges of the burner port 21. .

A gas supply path 1 of a fuel supply means C is connected to the gas burner A, and a primary air supply path 3 of a primary air supply means D is connected to the gas supply path 1 at a position close to the gas burner A. .

Note that a mist generator G is interposed in the middle of the primary air supply path 3.

The air blowing pipe 32 is similar to the gas burner A, and the water pump J
The air outlet 19 is formed in a ring shape surrounding the outer circumference of the ring.
Gas burner A is installed inside of gas burner A.
be placed close to the And this air blowing pipe 3
2 is connected to the secondary air supply path 4 of the secondary air supply means E.

In the illustrated example, the running water film a formed by the overflow from the water pump J is one stage, but it is also made to overflow from the water storage part I and drop into the water storage part below, so that it can be formed in multiple stages. It is also optional to form a fountain, and in that case, the gas burner A, the secondary air blowing pipe 32, the exhaust pipe 25, etc. are arranged at each stage.

In the embodiment shown in FIG. 6, the water film forming device is modified from the fountain shown in FIG. 5 to an artificial waterfall, and is essentially the same as the embodiment shown in FIG.

Therefore, in this embodiment, the same elements are designated by the same reference numerals in the drawings, and the explanation thereof will be omitted.

Next, in the embodiment shown in FIG.
In addition, one or more auxiliary gas burners A' are installed so that a desired shape or pattern such as a flower can be expressed by the flame c' generated at the flame opening. Downstream from the connection point of the secondary air supply passage 3, the gas supply passage 1 is connected to the branch 1' via a switching valve 35.

Therefore, this device can selectively burn the main gas burner A and the auxiliary gas burner A' by operating the switching valve 35, and by the combustion of the main gas burner A, the flame is spread along the back surface of the flowing water film a. It stretches out and appears like a fluctuating aurora,
By burning the auxiliary gas burner A', the flame can be made to appear like an underwater flower.

In each of the embodiments described above, the mist of the metal chloride aqueous solution d generated by the mist generator G is
Although the mist is fed into the gas supply path 3, it is also possible to interpose a mist generator G in the gas supply path 1 and feed the mist directly into the gas supply path 1.

In addition, as explained above, the mist generator G is not limited to a structure in which the metal chloride aqueous solution d in the container is vibrated and atomized by ultrasonic waves, but is also a pipe connected to the gas supply path or the primary air supply path. High-pressure gas or air is ejected from the nozzle, and the aqueous metal chloride solution is suctioned from the container using a suction pipe or the like using the negative pressure generated around the ejection port of the nozzle. It is also optional to have a structure in which it is blown into a mist and sent into the gas supply path or the primary air supply path.

(Effects of the Invention) Since the present invention is configured as described above, it produces the effects described below.

The flame that forms on the back side of the running water film is pulled downward along the running water film and spreads due to the Coanda effect, and the flickering of the flame appears through the running water film like an aurora, which is different from the conventional method. It can exhibit a mysterious, elegant, and fantastical beauty that is completely different from fountains illuminated with colored lights.

By making the metal chloride aqueous solution into a mist and mixing it into the fuel gas together with the primary air, the color of the flame can be colored to a predetermined color depending on the metal chloride due to the flame color reaction of the metal chloride. It can make your beauty stand out even more.

Furthermore, by installing multiple mist generators that turn different metal chlorides into mist, and operating them arbitrarily, the color of the flame can be changed one after another, making fountains and artificial waterfalls even more fun and beautiful. It can be done.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram showing an outline of a running water film forming apparatus showing one embodiment of the present invention, Fig. 2 is a cross-sectional view taken along the line - - of Fig. 1, and Figs. 3 to 7 show other embodiments. FIG. A: Gas burner, B: Fuel gas supply source, C:
Fuel supply means, D: Primary air supply means, E: Secondary air supply means, F: Combustion gas discharge means, G: Mist generator, H: Controller, a: Running water film,
b: closed space, c: flame, d: metal chloride aqueous solution,
1: Gas supply path, 2: Primary air supply blower,
3: Primary air supply path, 4: Secondary air supply path, 5:
Exhaust blower, 6: Exhaust path.

Claims (1)

[Scope of Claims] 1. In a running water film forming device that is equipped with water pumping means and forms a closed space with the running water film by dropping water from a predetermined height in the form of a film, within the closed space formed by the running water film. a gas burner that is disposed in the gas burner and forms a flame toward the flowing water film, and a fuel supply means that connects a fuel gas supply source outside the closed space to the gas burner via a gas supply path and supplies fuel gas to the gas burner. and a primary air supply means that connects an air supply blower provided outside the closed space to the gas supply passage via the primary air supply passage to premix primary air for combustion with the fuel gas, and the closed space. a secondary air supply means that connects the inside of the closed space to the outside of the closed space via a secondary air supply path and supplies the outside air to the vicinity of the gas burner in the closed space, and the inside of the closed space is provided outside of the closed space. A running water film forming device comprising: a combustion gas discharge means that communicates with an exhaust blower via an exhaust passage and discharges combustion exhaust gas within the closed space to the outside of the closed space. 2. A claim characterized in that a mist generator is interposed in the middle of a gas supply path or a primary air supply path to atomize an aqueous metal chloride solution and supply a mist of the metal chloride aqueous solution to these supply paths. Item 1. The running water film forming device according to item 1. 3. A plurality of mist generators are installed in parallel in the middle of the gas supply path or the primary air supply path, each of which atomizes a different type of metal chloride, and the plurality of mist generators are arbitrarily switched. 3. The running water film forming apparatus according to claim 2, further comprising a controller for activating the water film forming apparatus.