Seafood freshness preservation device

Abstract

This invention provides a seafood freshness preservation device that effectively cools seafood and maintains its freshness by efficiently circulating the water in the fish tank to maintain a uniform temperature inside the tank. [Solution] A fish freshness preservation device that maintains the freshness of seafood in a fish tank 2 by circulating cooled water in the fish tank 2 to equalize the water temperature, comprising a pump 10 positioned at the bottom of the fish tank 2 to draw up water from the lower part of the fish tank 2, and a discharge pipe 12 connected to the pump 10 and positioned substantially around the entire circumference of the upper part of the fish tank 2, which discharges the water drawn up by the pump 10 into the fish tank 2 from a plurality of discharge ports 18 provided on its side wall.

Claims

1. A fish freshness preservation device that circulates cooled water in a fish tank to equalize the water temperature and preserve the freshness of the fish and shellfish in the tank, A pump is placed at the bottom of the fish tank to draw up water from the bottom of the fish tank, A discharge pipe is connected to the pump and is positioned substantially around the entire circumference of the upper part of the fish tank, and discharges the water drawn up by the pump into the fish tank from multiple discharge ports provided on its side wall, A seafood freshness preservation device characterized by being equipped with [a specific feature].

2. The seafood freshness preservation device according to claim 1, further comprising one or more auxiliary discharge pipes positioned below the discharge pipes positioned around the upper part of the fish tank and along the perimeter of the fish tank, which discharge water drawn up by the pump into the fish tank from a plurality of discharge ports provided on its side wall.

3. The seafood freshness preservation device according to claim 2, characterized in that the auxiliary water discharge pipe is in communication with the water discharge pipe.

4. The seafood freshness preservation device according to claim 2, characterized in that the auxiliary water discharge pipe comprises a first auxiliary water discharge pipe positioned below the main water discharge pipe and a second auxiliary water discharge pipe positioned even further below the first auxiliary water discharge pipe.

5. The seafood freshness preservation device according to claim 4, characterized in that the first auxiliary discharge pipe is a pipe that connects the intermediate portions of two extension pipes that extend downward from the discharge pipe, and the second auxiliary discharge pipe is a pipe that connects the ends of the two extension pipes.

6. The seafood freshness preservation device according to claim 2, characterized in that the auxiliary water discharge pipe is positioned at a height of 15 to 60% from the upper end of the fish tank.

7. The seafood freshness preservation device according to claim 1, characterized in that the pump is covered with a protective case having water passages that surround it.

8. The freshness preservation device for seafood according to claim 1, characterized in that it is connected to the pump and provided with a water intake channel that is located at the bottom of the fish tank and guides the inflow of water to the pump.

9. The freshness preservation device for seafood according to claim 1, characterized in that the water is seawater.

10. The seafood freshness preservation device according to claim 1, characterized in that it is installed in the fish tank of a fishing vessel.

11. A method for cooling and preserving seafood, characterized by using a seafood freshness preservation device according to any one of claims 1 to 10 to circulate the water in the fish tank and cool the seafood in the fish tank.

12. The method for cooling and preserving seafood according to claim 11, characterized in that it is performed on a fishing vessel.

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