JP2011244694A - Storage apparatus and ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a storage apparatus that can prevent fish spoilage, and to provide a ship.SOLUTION: The storage apparatus includes: a water tank 5 that stores fish with conditioned water W mixed with 60-40 mass.% of fresh water and 40-60 mass.% of sea water; a conducting terminal 10 that is arranged in the conditioned water of the water tank; a power supply 12 that applies electric power in which a current is 0.2-3 mA and 1.6-11.1 W to a conducting terminal; and a cooling device 7 that cools the conditioned water in the water tank.

Description

  The present invention relates to a storage device suitable for a fishing rod for a fishing boat, and more particularly to a storage device that suppresses corruption of collected fish stored in a ginger and a ship such as a fishing boat equipped with the storage device.

  Traditionally, fishing boats have been equipped with ginger to store and store collected fish live. This conventional ginger contains fresh water and ice, or contains cold water, and the collected fish is stored in a state cooled with ice water or cold water.

  However, such stuffed ice and cold-water ginger quickly spoil the collected fish. For this reason, the fishing boat has to return to the home port from the fishing ground before landing to rot the fish, and there is a problem that the operation time of the fish collected at sea is shortened.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a storage device and a ship that can suppress the decay of fish.

  As a result of many years of research on how to maintain the freshness of fish and foods, the present inventors have inherent biopotentials in living organisms such as fish and vegetables (plants), and activate the living organisms by applying the required potentials to these organisms. Focusing on the fact that it is possible to slow down the decay of the body, and the fact that the oxidation of the living body can be suppressed by generating an oxidation-reduction action by giving electrons to the living body, thereby suppressing the corrosion of the living body. The composition of aquarium water when keeping fresh fish with ginger, the current, voltage, power, frequency, and the temperature of the aquarium water that were given to the fish were considered important, and experiments that varied these were repeated. As a result, it was possible to find a method that can suppress the decay of fish. The present invention is configured based on this new knowledge.

  The storage device according to claim 1 is provided in a basin for accommodating both conditioned water and fish, which are a mixture of 60 to 40% by mass of fresh water and 40 to 60% by mass of seawater, and in the conditioned water of the aquarium. An energization terminal, a power supply device for energizing the energization terminal with a current of 0.2 mA to 3 mA and an electric current of 1.6 W to 11.1 W, and a cooling device for cooling the adjustment water in the water tank It is characterized by comprising.

  The storage device according to claim 2 is characterized in that the frequency of the current is 50 Hz to 1000 Hz.

  The storage device according to a third aspect is characterized in that the energizing terminal has at least a portion that is suspended in the adjustment water in a chain shape.

  The storage device according to claim 4 is characterized in that the cooling device is configured to cool the adjusted water to 0 ° C. to −1 ° C.

  The storage device according to claim 5 is characterized in that a heat exchanger of the cooling device is disposed along an inner surface of the water tank, and an electrical insulator is disposed inside the heat exchanger.

  The ship which concerns on Claim 6 has arrange | positioned the storage apparatus of any one of Claims 1-5 in the hull.

  ADVANTAGE OF THE INVENTION According to this invention, decaying of fish can be suppressed by supplying required electric power in an aquarium and giving a required electric potential and an electron to the fish in an aquarium.

The schematic diagram which shows the structure of the storage device which concerns on one Embodiment of this invention in a partial cross section. The top view of the fishing boat carrying the storage apparatus shown in FIG. The table | surface which shows the experimental data for investigating the fish spoilage suppression effect by the storage apparatus shown in FIG. The graph which shows the experimental result of FIG. 3 by a broken line. The schematic diagram which shows the structure of the storage apparatus which concerns on other embodiment of this invention in a partial cross section.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected to the same or an equivalent part in several drawing.

  FIG. 2 is a plan view of a fishing boat which is an example of a ship. As shown in FIG. 2, a fishing boat 1 has a storage device 3 such as a ginger mounted on its hull 2. The hull 2 is provided with a cabin 4 having a cockpit for maneuvering the fishing boat 1.

  As shown in FIG. 1, the storage device 3 includes a water tank 5 that accommodates adjusted water W and fish F. The adjusted water W is composed of 60 to 40% by mass of fresh water and 40 to 60% by mass of seawater. Seawater has a salinity of about 3.5%, for example. The water tank 5 includes a bottomed cylindrical or bottomed rectangular water tank body 5a and an openable / closable upper lid 6 that closes an upper opening 5b of the water tank body 5a.

  The aquarium body 5a is configured to have a required size with a high-strength synthetic resin such as carbon fiber-containing reinforced plastic, or a metal such as stainless steel. It is fixed.

  The aquarium body 5a is reduced in diameter to the required diameter in FIG. 1 to form a neck portion 5d, and the neck portion 5d is substantially flush with the upper surface of the deck 2a of the hull 2 at the end of the upper opening 5b. So as to extend. On the one side of the upper lid 6, the deck 2 a forms a concave portion 2 a 1 having a depth substantially equivalent to the plate thickness of the upper lid 6 and the size of the planar shape of the upper lid 6, and the upper lid 6 moves to one side of the concave portion 2 a 1 side. The upper opening 5b of the water tank main body 5a can be fully opened by sliding. The upper lid 6 is opened at a required opening degree from fully closed to fully open, and is provided with a locking mechanism that can appropriately maintain the opened state. The upper lid 6 is made of a synthetic resin or metal substantially the same as the water tank body 5a.

  The storage device 3 is provided with a cooling device 7 in the water tank 5. The cooling device 7 is constituted by, for example, a heat pump type refrigeration cycle device, and the cooling pipe 8 that is a heat exchange tube is almost entirely or partially along the inner surface of the side wall in the vicinity of the inner side of the inner surface of the side wall of the water tank 5. It arrange | positions over and the adjustment water W in the water tank 5 is cooled to required temperature.

  Inside these cooling pipes 8 (that is, the center side of the water tank main body 5a), an insulating sheet 9 having electrical insulation is disposed so as to cover almost the entire side surface of the water tank main body 5a. The electric insulation of the water tank main body 5a is aimed at.

  In the upper lid 6, the energization terminal 10 is disposed so as to penetrate in the thickness direction at the center or the like. The current-carrying terminal 10 has a current-carrying terminal body 10a inside the inner surface of the upper lid 6 (downward in FIG. 1) formed in a chain shape and suspended in the water tank 5, and the lower end in the figure extends into the adjusted water W. The energizing terminal main body 10a swings with the swinging of the adjustment water W, and is also configured to prevent the fish F from being damaged by swinging when it collides with the fish F. ing. An electric output terminal of the power supply device 12 is connected to the outer end portion 10 b through which the energization terminal 10 penetrates the upper lid 6 and protrudes to the outside through a power cable 11.

  The power supply device 12 is connected to a power generator (not shown) disposed in the hull 2 to receive required power, and a current of 50 Hz to 1000 Hz is 0.2 mA to 3 mA and 1.0 W to 20 W. Power is supplied to the energization terminal 10.

  The power supply device 12 includes an operation unit for adjusting a current output to the energization terminal 10 to 0.2 A to 3 mA and adjusting a voltage and a frequency, respectively.

  3 and 4 show a case where a plurality of live sardines are accommodated in the aquarium 5 as an example of the fish F, and high, medium, and low three levels of power are supplied from the power supply device 12 to the energizing terminal 10, respectively. The time-dependent growth change of the sardine live fungi in the water tank 5 is shown. The number of viable bacteria indicates the number of E. coli per sardine. Here, the high power means that the current is 3 mA and the voltage is 3700 V and the power is 11.1 W, the medium power means that the current is 1.8 mA and the voltage is 1700 V and the power is 3.6 W, and the low power means that the current is 0 The power of 0.2 mA and the voltage of 800 V was 1.6 W, and the frequency of these currents was 50 Hz to 1000 Hz. The water temperature of the adjustment water W was cooled to 0.1 ° C. to −1 ° C. by the cooling device 7. 3 and 4, the growth change of E. coli when one sardine dead as a normal refrigerator was stored at 5 ° C. in the refrigerator was examined by a standard agar culture method.

  According to these FIG. 3 and FIG. 4, in the case of this embodiment, while it is 3 days from the experiment start date (the first day) and when it is normally stored in a refrigerator, the number of viable bacteria exceeds 15000. The viable count has hardly grown from the first day. In addition, according to the present embodiment, the number of viable bacteria is only slightly increased in 4 days. The theory about the reason why the freshness of the fish can be maintained in this way is not necessarily elucidated by the present embodiment, and the fish F in the adjusted water W is supplied by supplying the required power to the adjusted water W. It can be understood that by applying an intrinsic biopotential to the oxidant and activating it while giving an electron to exert a redox action, oxidation, that is, decay can be suppressed. For this reason, the fish F collected and stored in the aquarium 5 can maintain freshness at least about the same as the first day of storage for at least 4 days. As a result, the fishing boat stays at the fishing ground for about 4 days and can continue to operate sufficiently without returning to the home port. Therefore, the catch can be increased. Moreover, the fuel consumption of the fishing boat can be saved by reducing the number of times of returning to the port.

  In addition, as shown in FIG. 5, this invention arrange | positions the cooling piping 8 of the cooling device 7 out of the water tank main body 5a, is comprised so that the outer surface of the water tank main body 5a may be enclosed, and the insulating sheet 9 of the water tank main body 5a is comprised. You may arrange | position in the state closely_contact | adhered to the inner surface. According to this, since the storage capacity of the aquarium body 5a can be increased, the number of fish F to be stored can be increased accordingly.

  Moreover, the electric power supplied in the adjustment water W in the water tank 5 is not limited to the combination of the above current and voltage, and the electric current is a weak current of 0.2 mA to 3 mA, and the electric power is 1.6 W to The range of 11.1 W is sufficient, and even when the combination of the current and voltage is appropriately changed, the freshness maintaining effect shown in FIGS. 3 and 4 could be achieved.

  Further, the water tank 5 may be provided with a voltage detector for detecting the voltage in the adjusted water W so that an alarm is output from the alarm device when a high voltage exceeding a predetermined level is detected. In addition, the ship is not limited to the fishing boat 1, and the present invention is also applied to a boat equipped with a fish storage device such as a fishing boat or a sightseeing boat.

  And since the cooling pipe 8 and the inner surface of the water tank 5 were covered with the insulating sheet 9, the electric shock of the cooling device 7 and the water tank 5 when the energization terminal 10 is energized is prevented, and the cooling device 7 is damaged by the energization of the cooling pipe 8 Prevention of electric shock to people.

1 Fishing boat (ship)
2 Hull 3 Storage Device 5 Water Tank 5a Water Tank Body 6 Upper Lid 7 Cooling Device 8 Cooling Pipe 9 Insulating Sheet 10 Current Terminal 10a Current Terminal Body 12 Power Supply Device

Claims (6)

A water tank that accommodates both conditioned water obtained by mixing 60 to 40% by mass of fresh water and 40 to 60% by mass of seawater and fish;
An energization terminal disposed in the adjustment water of the aquarium;
A power supply device for passing a current of 0.2 W to 3 mA and a power of 1.6 W to 11.1 W to the current-carrying terminal;
A cooling device for cooling the adjustment water in the water tank;
A storage device comprising: The storage device according to claim 1, wherein a frequency of the current is 50 Hz to 1000 Hz. The storage device according to claim 1, wherein the energizing terminal is configured in a chain at least at a portion depending on the adjustment water. The said cooling device is comprised so that the said adjustment water may be cooled to 0 degreeC--1 degreeC, The storage apparatus of any one of Claims 1-3 characterized by the above-mentioned. The heat exchanger of the said cooling device is arrange | positioned along the inner surface of the said water tank, and the electrical insulator was arrange | positioned inside this heat exchanger, The any one of Claims 1-4 characterized by the above-mentioned. Storage device. A ship, wherein the storage device according to any one of claims 1 to 5 is disposed on a hull.

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