JPH08206558A - Bubble fountain device - Google Patents

Abstract

PURPOSE: To make it possible to vividly express characters, graphics, etc., by continuously generating uniform microbubble groups at a high density on a water surface. CONSTITUTION: Air permeable cylindrical bodies 4 which are formed by joining particles of ceramics and metals or materials mixed with thermoplastics by methods, such as heating and baking, are enclosed with passages 4A in the central part of the diametral direction by cylindrical walls 4B and are formed with microgap groups 4D, 4D... communicating with each other via communicating paths 4C in the cylindrical walls 4B are arranged on the bottom of a fountain pond in desired patterns. High-pressure air is supplied from a high-pressure air supply source to the passages 4A in the central parts in the radial direction of these air permeable cylindrical bodies 4 to eject the microbubbles into the water at nearly uniform and continuous ejection density from the entire periphery and entire length of the cylindrical walls 4B so that the characters, graphics, etc., corresponding to the arranging patterns of the air permeable cylindrical bodies 4 are expressed on the water surface by the microbubble groups.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bubble fountain device capable of generating a group of fine bubbles on a water surface such as a fountain and expressing various characters and figures by the group of fine bubbles.

[0002]

2. Description of the Related Art As a conventional fountain device, there is known a fountain device in which a large number of fountain nozzles are arranged at the bottom of a fountain and the fountain nozzles are intermittently or continuously spouted toward the water surface. ing. This type of fountain device is intended to generate various ripples on the water surface by intermittently or continuously spraying water from a large number of fountain nozzles toward the water surface, and to focus the viewpoint on the ripples.

However, the ripples on the water surface generated by the water ejected from the fountain nozzle have a low expression function and a poor landscape effect. Therefore, there is a difficulty that it cannot be expected to increase the degree of attention. Moreover, in order to pump and circulate water, relatively large-scale water pumping and circulating equipment must be installed, which increases the initial cost and requires large power consumption for pumping and circulating water. Therefore, there is a drawback that the running cost becomes high.

Therefore, a vent pipe is arranged at the bottom of the water such as a fountain, a large number of vent holes are formed through the vent pipe, and a high pressure air supply source is connected to the inlet of the vent pipe to form a bubble fountain device. By ejecting air from the ventilation holes of the fountain to generate bubbles on the surface of the water such as a fountain, the expression function and landscape effect can be improved compared with the fountain device that generated ripples on the surface as described above. , It is possible to improve the degree of attention.

According to this type of bubble fountain device, the expression function and the landscape effect can be enhanced more than those of the fountain device which has generated ripples on the water surface, and the attention level can be improved. By using a facility with a relatively simple structure that only supplies high-pressure air to the trachea, it is possible to reduce the initial cost and running cost by being able to execute the bubble fountain and the consumption power not becoming too large. In addition, you can expect a back-up effect.

However, in a bubble fountain device constituted by a ventilation pipe having a large number of ventilation holes formed therethrough, the amount of air ejected from the ventilation hole formed at the inlet side of the ventilation pipe and the amount of air formed at the back side of the ventilation pipe. The difference with the amount of air ejected from the vent holes is increased. That is, while a large amount of air is ejected from the vent hole formed on the inlet side of the vent pipe near the high pressure air supply source, it is ejected from the vent hole formed on the back side of the vent pipe away from the high pressure air supply source. The amount of air used is reduced. This phenomenon becomes more remarkable as the length of the ventilation pipe increases, and when the length exceeds a certain length, the amount of air ejected from the ventilation hole formed on the far side extremely decreases. . Therefore, there is a drawback that it is impossible to express characters and figures by ejecting air in a uniform amount over the entire length of the ventilation pipe to generate bubbles having a uniform density on the water surface. Moreover, since the ejection form from many vents is discontinuous, the bubbles generated on the water surface are also discontinuous, which makes it difficult to represent continuous characters and figures, and also from the vents. Since it cannot be expected to eject minute bubbles, it also has a drawback that characters and figures cannot be vividly expressed by high-density minute bubbles.

[0007]

The problem to be solved is to reduce the initial cost and running cost, to enhance the expression function and the landscape effect, and to increase the attention of the ventilation pipe. Even if air is ejected from the vent holes of the bubble to perform bubble fountain, the air is ejected in a uniform amount over the entire length of the vent pipe to generate a group of bubbles with a uniform density on the water surface. In addition to being impossible to express, it is difficult to express these characters and figures in succession, and moreover, it is not possible to express them vividly by the high density of minute bubbles.

[0008]

According to the present invention, there is provided a high-pressure air supply source, a ventilation pipe to which high-pressure air is supplied from the high-pressure air supply source, and a breathable tube which is connected to the ventilation pipe and is installed in water. This air-permeable cylinder body is characterized in that a group of minute voids are formed in communication with each other on a cylinder wall that surrounds the passage in the radial center part, and reduce the initial cost and running cost, and By enhancing the expression function and the landscape effect to improve the attention, in addition to obtaining the bagging effect, it is possible to generate characters with high density and uniform microbubbles continuously on the water surface, so that characters and figures can be displayed. Achieved the purpose of vivid expression.

[0009]

According to the present invention, the high-pressure air supplied from the high-pressure air supply source is sent through the ventilation pipe to the passage in the radial center of the air-permeable cylinder. The high-pressure air sent into this passage permeates the cylinder wall through the group of minute voids that communicate with each other, and becomes almost uniform and continuous as minute bubbles from the outer periphery of the cylinder wall and the entire length of the breathable cylinder. Ejects into water at the eruption density. Therefore, a group of micro bubbles corresponding to characters and figures corresponding to the arrangement pattern of the breathable cylinder can be vividly expressed on the water surface. Of course, you can expect the effect of bagging.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing an embodiment of the present invention. In this figure, a bubble fountain device is provided with a high pressure air supply source 1 composed of an air compressor, and is connected to the high pressure air supply source 1 to supply high pressure air. Ventilation pipe 2 and this ventilation pipe 2
And a breathable cylindrical body 4 that is installed in the fountain pond 3 in communication with.

The air-permeable cylinder 4 is made of, for example, a porous body obtained by joining particles of ceramics or metal or a thermoplastic mixed material by a method such as heating and firing, and as shown in FIG. , The radial center passage 4A has a cross-sectional shape surrounded by an annular tubular wall 4B, and the microcavity groups 4D, 4D ... Are formed in the tubular wall 4B so as to communicate with each other via a communicating passage 4C. There is. Then, as shown in FIG. 1, three groups formed by the triple concentric circles 5A, 5B, and 5C are prepared, and these groups are arranged on the bottom of the fountain 3 in a pattern in which they are positioned at the vertices of a triangle. Therefore, the ventilation pipe 2 includes an upstream ventilation pipe 2A provided with the valves V1, V2 and V3,
It is constituted by three sets of ventilation pipes 2B, 2B, 2B on the downstream side, which are provided with valves v1, v2, v3.

With such a structure, the valves V1, V
2, V3 and 3 sets of downstream ventilation pipes 2B, 2B, 2B
When the high-pressure air supply source 1 is operated with all of the valves v1, v2, v3 interposed in the air-conditioning system open, the high-pressure air supplied from the high-pressure air supply source 1 becomes the ventilation pipe on the upstream side of the ventilation pipe 2. 2A and the ventilation pipes 2B, 2B, 2B on the downstream side, and is fed into the passage 4A at the radial center of each of the three groups formed by the triple concentric circles 5A, 5B, 5C. The high-pressure air sent into the passage 4A passes through the communication passage 4C, passes through the cylinder wall 4B through the minute void groups 4D, 4D, ... Which communicate with each other via the communication passage 4C, and as a minute bubble, the cylinder wall 4B. Almost uniform from the entire circumference and length of
And it jets into the water with a continuous jet density. Therefore,
In each group, a group of micro bubbles corresponding to the triple concentric circles can be visibly expressed on the water surface, and as a whole, a V-shaped pattern, that is, a group of micro bubbles corresponding to a V character is visibly expressed on the water surface. be able to. Of course, the bag effect of the fountain 3 can also be expected.

By performing such a hubble fountain, the initial cost and running cost can be reduced, and the expression function and the landscape effect can be enhanced, as compared with the conventional fountain device that causes ripples on the water surface. The degree can be improved. Moreover, high-pressure air is sent into the passage 4A at the radial center of the breathable tubular body 4, and the high-pressure air is communicated with each other via the communication passage 4C.
Since it is configured so as to permeate and eject the gas, there is no variation in the amount of air ejected in the circumferential direction and no bubbles are discontinuous as in the conventional bubble fountain device. Moreover, since the minute bubbles are ejected, a high density and uniform minute bubble group is continuously generated on the water surface, and the triple minute bubble group in each group and the minute bubble group corresponding to the V character as a whole are generated on the water surface. It can be expressed vividly.

Although an example of expressing a triple bubble group and a bubble group corresponding to the V character as a whole has been described, the present invention is not limited to the valves V1, V2, V3 and the valves v1, v2, v3. By changing the opening / closing pattern and opening / closing time of the air bubbles, it is possible to express the micro-bubble group with various patterns on the water surface, and the breathable cylinder 4
By varying the shape, size (length), arrangement pattern, and the like of various types, it is possible to express various forms of characters and figures on the water surface by the microbubble group.

[0015]

As described above, according to the present invention, the high-pressure air supplied from the high-pressure air supply source is sent into the passage in the radial center of the air-permeable cylinder, and the cylinder wall is passed through a group of minute voids communicating with each other. Since it is made to permeate through it, it is ejected into the water as fine air bubbles from the entire circumference of the cylinder wall of the breathable cylinder and the entire length of the breathable cylinder in a substantially uniform and continuous spray density to form a breathable cylinder. A group of micro bubbles corresponding to characters and figures corresponding to the arrangement pattern of the body can be vividly expressed on the water surface.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view showing a cylinder wall of a breathable cylinder.

[Explanation of symbols]

 1 High-pressure air supply source 2 Water passage pipe 4 Breathable cylinder 4A Radial central passage 4B Cylindrical wall 4C Communication passage 4D Micro void

Claims (1)

[Claims] 1. A high-pressure air supply source, a ventilation pipe to which high-pressure air is supplied from the high-pressure air supply source, and a breathable cylinder that is placed in water and communicates with the ventilation pipe. The bubble fountain device is characterized in that the cylindrical body is formed with a group of minute voids communicating with each other on a cylindrical wall that surrounds a passage at the center in the radial direction.