High-precision control system and method for shipborne cryogenic flash freezing of aquatic product using liquid nitrogen

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United States of America Patent

PATENT NO 11519656
APP PUB NO 20210190404A1
SERIAL NO

16817227

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Abstract

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A high-precision control system and method for shipborne cryogenic flash freezing of an aquatic product using liquid nitrogen is described. The system may include a main control system, a display unit, a liquid nitrogen supply system, a valve control unit, an acquisition unit, and a power unit. A flash freezing process is divided into four stages: a precooling stage, a flash freezing stage, a deep freezing stage, and a thermal insulation stage. Different cooling rates and flash freezing times are used for different stages, where a cooling rate is used in the flash freezing stage is the highest, a cooling rate used in the deep freezing stage is next, a cooling rate used in the precooling stage is the lowest, and an ambient temperature in a device is kept stable in the thermal insulation stage.

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Patent Owner(s)

Patent OwnerAddress
ZHEJIANG UNIVERSITY310058 YUHANG TANG ROAD XIHU DISTRICT HANGZHOU ZHEJIANG 866 HANGZHOU CITY ZHEJIANG PROVINCE 310058
OCEAN RESEARCH CENTER OF ZHOUSHAN ZHEJIANG UNIVERSITY316000 NO 10 TIYU ROAD QIANDAO STREET DINGHAI DISTRICT ZHOUSHAN CITY ZHEJIANG PROVINCE ZHOUSHAN CITY ZHEJIANG PROVINCE 316000

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cai, Yong Zhoushan, CN 65 422
Chen, Lei Zhoushan, CN 979 4055
Ding, Fan Zhoushan, CN 43 368
Jiang, Kaiyou Zhoushan, CN 3 0
Lin, Wanglin Zhoushan, CN 4 0
Liu, Shuo Zhoushan, CN 108 187
Qiao, Kai Zhoushan, CN 17 0
Sun, Zhiyong Zhoushan, CN 32 68
Wang, Hao Zhoushan, CN 906 6386
Yang, Zhijian Zhoushan, CN 52 447
Zhang, Bo Zhoushan, CN 1006 7322
Zhang, Yu Zhoushan, CN 1971 9206

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