JPS6045930B2 - foaming machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a foaming machine, and particularly to a foaming machine that supplies oxygen to water by foaming.

Generally, when raising eels, freshwater fish, etc. in a pond, aquarium, etc., a foaming machine such as a water wheel or a compressor is used to generate bubbles and supply oxygen to the water.

At that time, conventional compressors etc. blow air directly into the water to generate bubbles. However, with such conventional devices, the bubbles generated are large in size and have a high buoyancy, so they reach the water surface before sufficient oxygen is supplied to the water, and the amount of oxygen is small compared to the amount of bubbles generated. supply is low. In addition, if the bubbles are large, the number of bubbles per fixed amount of air blown is small, so the contact area between the bubbles and water cannot be made large, which also prevents oxygen from being supplied effectively. do not have. This is a big problem because the number of eels, freshwater fish, etc. that can be raised in a pond, aquarium, etc. of a certain volume is determined by the amount of oxygen supplied to the water in the pond or aquarium.

The present invention was made in view of the problems of conventional foaming machines as described above, and its purpose is to supply a large amount of oxygen to water by generating a large amount of fine bubbles, The purpose of the present invention is to propose a foaming machine that can increase the amount of eels, freshwater fish, etc. per unit volume.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings showing a preferred embodiment. FIG. 1 is a partially cutaway external view of a foaming machine according to an embodiment of the present invention, and FIG. 2 is a sectional view of the main parts thereof.

1 is a motor, and this motor 1 is fixed to a part of a motor mount 3 provided on a base 2.

Reference numeral 4 designates four leg fixtures attached to the base 2, each of which has a leg 5 supported at its tip.

Reference numeral 6 denotes a hollow support shaft of a predetermined length fixed to a portion of the base 2 located below the extension of the rotating shaft 7 of the motor 1, and extends toward the lower surface of the base 2 as shown.

Note that the portion of the base 2 where the support shaft 6 is located is provided with a hole into which a hollow pipe, which will be described next, is inserted into the support shaft 6. Reference numeral 8 denotes a hollow pipe rotatably supported within the support shaft 6 by bearings 9 and 9' provided within the outlet portion and lower end of the support shaft 6.

The tip of the hollow pipe 8 located on the base 2 is connected to the rotating shaft 7 of the motor 1 by a coupling 10. Further, an air hole 11 for taking in air is provided on the side surface of the portion protruding above the base 2. Reference numeral 12 denotes a hollow rotary disk connected to the lower end of the hollow vibrator 8 that protrudes from the lower end of the support shaft 6, and as shown in the cross-sectional view of FIG. It has a similar shape.

Small holes 13 with a diameter of about 1 TI$L are formed at a pitch of 3 TWL on the front and back surfaces of a portion 12'' located a predetermined width toward the center from the outer periphery of the rotating disk 12 (FIG. 3). The diameter of the rotating disk 12 in this case is approximately 25C) TWL.The foaming machine configured as described above has a water tank, etc. (Fig. (not shown) above the water surface.

In this case, the support shaft 6 and rotating disk 12 are submerged in water to a predetermined depth. Further, since the height of the legs 5 can be changed at the leg mount 4, the position of the base 2 can be adjusted according to the height of the water surface. Furthermore, it goes without saying that the motor 1 is connected to an external power source (not shown). Next, the operation of the foaming machine described above will be explained.

Place the foaming machine in a water tank as described above, and motor 1
When the power is turned on and the motor 1 is rotated, the hollow vibrator 8 and the rotary disk 12 rotate as the motor 1 rotates.
The rotation speed in this case is 1400 to 1500 revolutions per minute. Due to this rotation, the water that had entered into the rotating disk 12 and the hollow vibe 8 through the small hole 13 of the rotating disk 12 is removed by centrifugal force! On the contrary, it flows back into the water from the small hole 13. As a result, the inside of the rotating disk 12 and the hollow vibe 8 become empty. As the rotation continues, the rotation of the rotating disk 12 causes the water located near the rotating disk 12 to flow over the rotating disk 12 as shown by the arrow in FIG. 3! It will be done. Since the direction of this water flow is nearly perpendicular to the small holes 13 of the rotating disk 12, this flow of water causes a Ventury effect, and the pressure on the surface of the rotating disk 12 where the small holes 13 are located is reduced. The pressure becomes negative compared to the pressure of Then, due to the pressure difference, the air inside the rotating disk 12 flows out from the small holes 13 into the water. Further, the air that has flowed out is instantly cut off from the small holes 13 by the flow of water, becomes bubbles, and is released one after another into the water. These bubbles are instantly released by the flow of water, so they are formed into very fine bubbles and are generated continuously. Therefore, countless bubbles are generated one after another from the rotating disk 12 having a large number of small holes 13. Further, the generated air bubbles are released into the turbulent water by the rotation of the rotary disk 12, and are therefore spread over a wide area in the water by the water flow. Since the bubbles generated by the above operations are fine and diffused in the water, they float in the water for a long time, and as a result, oxygen in the bubbles is sufficiently supplied into the water.

It goes without saying that during the above operation, air is constantly supplied into the rotating disk 12 from the air hole 11 on the hollow vibe 8. As explained above, according to the present invention, a sufficiently large amount of oxygen can be supplied by generating a large number of fine bubbles and diffusing the bubbles in water. The amount of rearing per unit volume can be significantly increased.

[Brief explanation of the drawing]

Fig. 1 is an external sketch showing a partially cut away state of a foaming machine according to an embodiment of the present invention, Fig. 2 is a sectional view of the main parts of the embodiment, and Fig. 3 is a structure of a rotating disk and It is a sectional view showing a flow. Here, 1... motor, 2... base, 3... motor mount, 4... leg mount, 5... leg, 6...
Support shaft, 7...Rotation shaft, 8...Hollow vibe, 9,9″
...Bearing, 10...Coupling, 11...
・Air hole, 12...Rotating disk, 13...Small hole.

Claims (1)

[Claims] 1. A motor, a hollow pipe connected to the rotating shaft of the motor whose lower part is placed underwater, and which has an air hole in the upper part located above the water surface, and a hollow pipe connected to the lower end of the hollow pipe and placed underwater. The hollow body is a disc-shaped hollow body arranged in a shape where the thickness becomes thinner from the center toward the outer periphery, and a large number of small holes are provided on the surface near the outer periphery. A foaming machine featuring