JPH038179B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an aquarium in which fish and shellfish can survive for a long time, such as a live fish aquarium suitable for use in a live fish transport vehicle.

(Prior technology) In order for fish and shellfish to survive for a long time in a fixed aquarium on land or in an aquarium on a live fish transport vehicle, it is necessary to maintain a constant temperature of the water in the aquarium and to maintain a constant dissolved oxygen concentration in the water. It is said that the following three elements are required as a minimum: to maintain the water in the aquarium, and to constantly move the water in the aquarium to keep the water flowing.

Therefore, there is no problem if a fresh water stream can be constantly supplied to the aquarium, but if it is a stationary aquarium or a tank on a live fish transport vehicle where a fresh water stream cannot be supplied, the same water must be circulated and the fish and shellfish cannot be fed. It was considered difficult to keep them alive for long periods of time.

However, in recent years, in the process of circulating the same water,
By supplying oxygen using oxygen cylinders and keeping the water temperature constant using artificial cooling devices, fish and shellfish can now survive for long periods of time.

However, fish and shellfish that live in an aquarium emit various excreta, carbon dioxide gas, and ammonia nitrogen, which interfere with the long-term survival of fish and shellfish, and artificially supplement oxygen and lower the water temperature. Cooling alone was not enough.

For this reason, in the past, a filtration layer was placed in the water circulation path, and a filter material that neutralized carbon dioxide gas, a filter material that adsorbed ammonia nitrogen, and a filter material that filtered impurities were used in the filter material constituting this filtration layer. was.

(Problems to be solved by the invention) As mentioned above, in conventional aquariums in which a limited amount of the same water is circulated, oxygen must be constantly supplied using artificially constructed compressed oxygen or liquid oxygen. Therefore, oxygen cylinders were indispensable, and in order to filter out fine impurities, expensive filter media with high filtration functions had to be used, which was uneconomical.

This invention mainly eliminates the need for oxygen cylinders during normal operation, makes it possible to dissolve oxygen in water very effectively using ozone, and efficiently removes fine impurities without using expensive filter media. This was done with the purpose of keeping seafood alive for a long time.

(Means for Solving the Problems) For this purpose, the present invention is equipped with an aquarium for storing fish and shellfish, a filtration tank having a filtration layer therein, and a circulation pump for circulating water through the aquarium and the filtration tank. The aquarium for live fish has a circulation path, which is equipped with a stirring tank that generates countless air bubbles between the aquarium and the filtration tank and rises, and an ozone generator is installed in the circulation path, At the same time, a bubble generator is placed at the bottom of the tank and on the side opposite to where the filtration tank is connected, and a blower pump is connected to this bubble generator. While making countless bubbles rise, a separate defoaming tank is provided, and the exit opening of the closed top lid of the water tank and the outlet opening of the upper end of the stirring tank are connected to the defoaming tank through a communicating pipe. It is characterized in that a check valve is interposed at the outlet opening of the airtight top lid of the water tank.

(Function) In this invention, a stirring tank is provided in addition to the water tank and the filtration tank, and an ozone generator is provided in the circulation path equipped with a circulation pump to supply ozone into the water in the tank. Carbon dioxide and fine impurities are attached to the countless rising bubbles generated in the tank and discharged and removed, and the ozone supplied into the water neutralizes the carbon dioxide gas, reducing the concentration of carbon dioxide in the water. The ammonia nitrogen in the water is decomposed and converted into oxygen, which is then dissolved in the water, increasing the oxygen concentration in the water.

Furthermore, in the present invention, the water in the water tank is circulated by the circulation pump action in the circulation path and guided to the stirring tank and the filtration tank. In some cases, it is difficult for water flow to occur,
Water tends to stagnate. Therefore, in the present invention, a bubble generator is placed at the bottom position on the opposite side of this water tank,
Compressed air is sent from a blower pump to cause countless air bubbles to rise, creating an upward flow of water and eliminating stagnation of water in the aquarium.

In addition, in this invention, a defoaming tank is provided separately, and the outlet opening of the closed top lid of the water tank and the upper end of the stirring tank are connected to the exit opening and the defoaming tank through a communicating pipe.
The numerous bubbles discharged from the aquarium and stirring tank can be extinguished in the defoaming tank, and a check valve is interposed at the outlet opening of the airtight top lid of the aquarium.
The internal pressure of the aquarium can be increased, and the environment can be made similar to the atmospheric pressure at the depth where fish actually live in the sea.

(Example) The details of the present invention will be explained below with reference to schematic diagrams of examples shown in the drawings.

In the figure, 1 and 1 are water tanks, which have a double bottom, and a large number of through holes 3 are formed in the inner bottom plate 2.
Both water tanks 1, 1 are in communication at the bottom. Both water tanks 1,1 are closed by a closed top cover 4,4, which has an outlet opening 5,5.

A filtration tank 6 and a stirring tank 7 are interposed between the pair of water tanks 1, 1. The filtration tank 6 has a filtration layer 8, which communicates with the stirring tank 7 at the bottom and an outlet 9 at the top.
Water is now being pumped out. The stirring tank 7 communicates with the water tanks 1, 1 at its bottom and, in the illustrated embodiment, has a stirring fan 11 rotated by a drive motor 10, by means of which the stirring fan 11 causes water to flow inside the stirring tank 7. It is designed to generate countless air bubbles.

In the figure, reference numerals 12 and 12 are circulation pumps, and a circulation pipe 13 from the circulation pump is connected to the water tanks 1 and 1 to supply circulating water into the water tanks 1 and 1. Then, the circulating water is supplied to the circulating pumps 12, 12 through the circulating pipe 14 connected to the outlet 9 on the filtration tank 6.
It is set back to . These constitute a circulation path.

In the figure, 15 is an ozone generator, which is installed on the circulation pipe 13. As shown in FIG. 3, this ozone generator consists of a power supply unit 16 and an ultraviolet lamp 17, and irradiates the atmosphere with ultraviolet rays to generate ozone.
This ozone is dissolved in the water flowing through the circulation pipe 13. Further, a cooler 18 is interposed in the circulation pipe 14 to cool the circulating water to an appropriate temperature.

Furthermore, in the figure, reference numerals 19 and 19 indicate bubble generators having a large number of holes;
It is located at the bottom of the aquarium on the opposite side of the tank.
Blower pumps 21, 21 are connected to this bubble generator 19 via connecting pipes 20, 20, and a large number of bubbles are caused to rise from this bubble generator 19.

In addition, numeral 22 in the figure is a defoaming tank, which is communicated through the outlet openings 5, 5 of the closed top lids 4, 4 of the respective water tanks 1, 1 and the communication pipe 24 of the upper end outlet 23 of the stirring tank 7, and is connected to the water tanks 1, 1, 1 and the stirring tank 7. and an outlet opening 5 of each water tank 1,1,
Check valves 25, 25 are interposed in the water tank 5, respectively, and the air pressure inside the water tank can be adjusted by the check valves 25. In addition, 26 in the figure is an emergency oxygen cylinder.

When water is filled in the water tanks 1, 1 of the present invention constructed as described above and the circulation pumps 12, 12 are operated, the water passes through the circulation pipe 13 to the water tanks 1, 1.
sent to. Then, when the ozone generator 15 in the circulation pipe 13 is operated, the generated ozone is dissolved in the water being sent and sent into the water tank 1. The ozone thus sent into the aquarium 1 is
It neutralizes carbon dioxide gas in the aquarium and converts ammonia nitrogen in the water, which is unfavorable for fish, to oxygen, increasing the oxygen concentration in the water.

The water in the water tank 1 is then sent into the stirring tank 7, where it is stirred by the stirring fan 11. A large number of bubbles generated by stirring by the stirring fan 11 rise, and these bubbles attach carbon dioxide gas and fine impurities in the water and send them upward into the stirring tank 7. Further, the water is sent to the filter tank 6, impurities in the water are filtered by the filter layer 8, and sent back through the circulation pipe 14, where it is cooled to an appropriate temperature by the cooler 18 along the way.

In the water circulation described above, water is sent from the bottom of the water tank 1 to the stirring tank 7, so the water flow becomes uneven, and the water stagnates on the side opposite to the stirring tank 7.
Undesirable. Therefore, when compressed air is sent from the blower pump 21 to a bubble generator 19 placed at the bottom of the water tank on the opposite side from the stirring tank, numerous bubbles are generated from the bubble generator and rise in the water. Therefore, an ascending water flow is generated on this bubble generator 19, and the water flow in the water tank 1 is evenly generated, thereby eliminating a portion where water stagnates. Moreover, these bubbles also work to attach and discharge carbon dioxide gas and fine impurities in the water.

Next, the bubbles sent out from the bubble generator and the bubbles generated on the stirring tank 7 are transferred to the communication pipe 24, respectively.
This defoaming tank 2 is fed into the defoaming tank 22 through
It will be deleted within 2. Therefore, when used in a live fish transport vehicle, no foam is released onto the road.

Furthermore, by operating a check valve provided at the outlet of the airtight top lid, the pressure inside the aquarium can be adjusted, making it possible to create an environment similar to that in which fish naturally live under the sea.

(Effects of the Invention) As described above, according to the aquarium of the present invention, ozone is used to supply oxygen to the water and change ammonia nitrogen in the water to oxygen, without requiring an oxygen cylinder. In addition to increasing oxygen concentration, it can eliminate minute impurities in the water without using an expensive filtration layer, and has the great effect of keeping seafood alive for a long time, achieving the desired purpose. That's what I got. In particular, in the present invention, a defoaming tank is provided separately, and the outlet opening of the airtight top lid of the water tank and the upper end of the stirring tank are communicated with the exit opening and the defoaming tank through a communication pipe. The numerous bubbles discharged from the tank can be extinguished in the defoaming tank, and a check valve is inserted at the outlet opening of the sealed top of the aquarium, making it possible to increase the internal pressure of the aquarium and ensure that the fish actually live in the sea. This has the great effect of creating an environment similar to the atmospheric pressure at the depth of the water.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram of a water tank of the present invention, FIG. 2 is a schematic diagram of a stirring tank and a filtration tank, and FIG. 3 is a schematic diagram of an ozone generator. 1...water tank, 4...tight upper lid, 5...outlet opening, 6...filtration tank, 7...stirring tank, 8...filtration layer, 12...circulation pump, 13, 14...circulation pipe, 15...Ozone generator, 19...Bubble generator, 21...Blower pump, 22...Defoaming tank,
23...Top end outlet, 24...Communication pipe, 25...Check valve.

Claims (1)

[Claims] 1. A live fish aquarium comprising an aquarium containing seafood, a filtration tank containing a filtration layer, and a circulation path equipped with a circulation pump for circulating water through the aquarium and the filtration tank; A stirring tank is provided between the filtration tank and the filtration tank, which rises by generating countless bubbles, and an ozone generator is installed in the circulation path to supply ozone into the water in the tank, and the filtration tank is A bubble generator is placed at the bottom of the water tank on the opposite side to the connected side, and a blower pump is connected to this bubble generator to raise countless bubbles from the bubble generator, while a separate defoaming tank is installed. The defoaming tank is connected to the outlet opening of the sealed upper lid of the water tank and the outlet opening of the upper end of the stirring tank through a communication pipe, and a check valve is interposed in the outlet opening of the sealed upper lid of the water tank. A live fish tank characterized by: