JPH0614822B2 - Ventilation plate for multiple vapor phases - Google Patents

Description

TECHNICAL FIELD The present invention relates to a multiple vapor phase aeration plate in a multiple vapor phase breeding method capable of breeding seafood in multiple stages.

[Conventional technology]

In the conventional aquaculture of seafood and the like, in order to cultivate a large amount of water, oxygen is dissolved in water by agitating the water in a pond or the like with a water wheel or an aerator and strongly aerating the air.

[Problems to be Solved by the Invention]

However, the conventional method has a problem that oxygen deficiency occurs in a fixed-capacity aquarium, pond, etc., and productivity cannot be increased, and the removal of food residue and excrement It is difficult to do so, and problems such as deterioration of water tanks and ponds occur.
Therefore, it is necessary to ventilate the air by taking measures such as stirring water vigorously. Therefore, there is a possibility that cells or microorganisms may be physically destroyed by the means for strongly stirring the water.

In view of the above-mentioned problems, the present applicant fixes a large number of containers in water to solve the problem of oxygen supply, makes it possible to control the mass of the gas by keeping the gas in multiple layers and increasing the efficiency of aquatic organisms. Has developed a multiple gas-phase breeding method that enables large-scale breeding (Japanese Patent Application No. 62-231725). The present invention relates to the improvement of the container used in the above multiple vapor-phase rearing method, in which the container is provided with a vent, and the amount of gas is controlled by the height thereof, and a large amount of aquatic organisms are reared in the multiple vapor-phase rearing method. It is an object of the present invention to provide a multi-gas phase ventilation plate capable of effectively performing the above.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, a plurality of container-like isolation plates having a flat bottom surface are installed in the water tank vertically in a plurality of stages at predetermined intervals downward, and air is supplied into the water tank. Thus, in a multiple vapor phase breeding method in which a vapor phase is placed in each of the isolation plates, a gas pool is formed in the lower portion of the container-like isolation plate and the gas is aerated to extend downward from the isolation plate. It is characterized in that the formed ventilation holes are provided, the positions of the ventilation holes are alternately shifted between the isolation plates, and the height of the ventilation holes is shorter than the height of the side wall of the isolation plate. There is.

[Action]

When ventilating into the aquarium, a gas pool is formed at the bottom according to the height of the vent through the ventilation hole of the isolation plate, and the gas phase is retained in multiple stages in the aquarium, creating an optimal environment for breeding aquatic organisms. provide.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a container-shaped multiple gas-phase aeration plate (hereinafter, simply referred to as a plate) according to the present invention, and as shown in the drawing, is installed in water in multiple stages at predetermined intervals in the vertical direction. The construction of this plate 1 is carried out, for example, by arranging a supporting column (not shown) penetrating the center of each plate 1 in water and installing the plate 1 in multiple stages by this supporting column, or by arranging four corners of each plate 1 It can also be installed in multiple stages by supporting it with a support pillar (not shown). This plate 1
Has a flat bottom surface and is installed with its opening facing downward. Reference numeral 2 denotes a vent hole formed so as to extend below the plate 1, which forms a gas reservoir in the lower portion of the plate 1 and also vents gas. The positions of the vent holes 2 are arranged so as to be alternately shifted between the plates, and the height of the vent holes 2 is formed to be shorter than the height of the side wall of the plate 1. With this structure, as will be described later, when gas is fed from below, an air pool 3 shown by a chain line in the figure corresponding to the length of the vent hole 2 is formed in the lower portion of the plate 1. It is like this.

In the present invention configured as described above, the lowermost plate 1
When the air is supplied from below, the gas is retained in the space corresponding to the height of the vent hole 2 of the plate 1 at the lowest stage. Then, when air is continuously supplied, the gas formed below the overflowing plate 1 rises through the gas reservoir 3 and is retained in the upper plate 1. In this manner, a breeding ground for aquatic organisms is formed on the upper surface (upper surface of the bottom of the container) of each plate 1 placed in water, and gas is stored in each plate below the plate 1 in many stages. And many breeding grounds will be formed in the water in multiple stages. Therefore, it is possible to set innumerable atmospheric environments similar to those under the surface of nature.

FIG. 3 shows another embodiment of the present invention. In this embodiment, the multiple vapor phase plate 1 of the present invention is installed and fixed in three stages on a part of the inner wall of the water tank 4 for viewing. In this embodiment as well, the formation of the vapor phase and the breeding ground is the same as in the previous embodiment, so a detailed description will be omitted, but the vapor phase formation is visually observable for viewing, and has a novel aeration action which has not existed before. Can provide an aquarium.

〔The invention's effect〕

Since the present invention is configured as described above, it is possible to structurally solve the problem of oxygen supply in breeding a certain aquatic organism, and to inexpensively and efficiently breed a large amount of aquatic organisms. And since oxygen is always abundant below the multiple gas phase plate, it is possible to create an environment favorable for survival and reproduction for aquatic organisms, and to effect three-dimensional breeding of seafood. Play.

[Brief description of drawings]

FIG. 1 is a perspective view, FIG. 2 is a sectional view of FIG. 1, and FIG. 3 is a perspective view showing another embodiment of the present invention. 1 ... Multiple gas phase ventilation plate, 2 ... Vent hole, 33 ...
… Gas pool.

Claims (1)

[Claims] 1. A plurality of container-shaped isolating plates having a flat bottom surface are installed in a vertical direction in a plurality of stages at a predetermined interval downward in the water tank, and air is supplied into the water tank. In a multiple vapor phase breeding method in which a vapor phase is placed in each of the isolation plates, a gas reservoir is formed in the lower portion of the container-like isolation plate and is formed so as to extend downward from the isolation plate for aeration of gas. A plurality of ventilation holes are provided, and the positions of the ventilation holes are alternately shifted between the isolation plates, and the height of the ventilation holes is shorter than the height of the side wall of the isolation plate. Gas phase isolation plate.