Marine seawater quick freezer

Abstract

The invention discloses a marine seawater instant freezer used for instantly freezing marine products on a ship. The marine seawater instant freezer is arranged in a cabin or a refrigeratory of a cabin and provided with a freezing tank, a water tank, a refrigeration unit matched with the freezing tank, a conveying system and a hanging basket used for containing marine products. A liquid freezing medium used for freezing marine products is contained in the freezing tank. The hanging basket containing marine products is arranged in the freezing tank, the marine products is placed into the water tank after being cooled through the freezing medium, the surfaces of the marine products are instantly frozen, and therefore instant freezing of marine products is completed. Energy consumption can be greatly reduced, the purpose of instantly freezing marine products on sea better more rapidly is achieved, and the quality and delicious taste of the marine products can be kept.

Description

technical field [0001] The invention relates to the field of marine fishery, in particular to a marine seawater quick-freezing machine. Background technique [0002] Sea fishing ships go to sea for a long time, and freezing and preservation is an essential means, otherwise, the fished aquatic products will rot quickly at sea. At present, the sea fishing ships all adopt the air quick freezing method to freeze and keep seafood fresh. The freezing process is divided into two stages: the first stage, in the quick freezing warehouse, the air temperature in the warehouse is lowered to about -35°C, and the seafood is placed in the cold storage. Quick freezing in. After the seafood is fully frozen, it is transferred to the second cold storage; in the second stage, the air temperature in the second cold storage is reduced to about -20°C, and the aquatic products are frozen for a long time until they land on the shore and are transported to the market. At present, although the first...

AI Technical Summary

Problems solved by technology

However, there are four deficiencies. One is that quick freezing consumes a lot of power, so high-power refrigeration equipment must be used. Generally, 20 tons of seafood per day needs a refrigeration compressor with a power of about 200KW, otherwise, the purpose of quick freezing will not be achieved; the second is quick freezing. The stage time is relatively long, the output is low, and sometimes it cannot meet the needs; the third is to perform low-temperature quick-freezing in the air environment. Due to the long time, the cells of aquatic products are destroyed, so that the quality and taste of frozen seafood are compared with fresh seafood. Great changes, significantly lower than fresh seafood

In the market, the price of frozen seafood by traditional methods is far lower than that of fresh seafood

Fourth, the entire freezing process has not been automated, and many links are manually operated, which increases labor costs

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