Raw material gas liquefying device and method of controlling this raw material gas liquefying device

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United States of America Patent

PATENT NO 11662140
APP PUB NO 20190285339A1
SERIAL NO

16465529

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Abstract

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A raw material gas liquefying device includes a feed line; a refrigerant circulation line; and a controller. In a refrigerant liquefaction route, a refrigerant flows through a compressor, a heat exchanger, a circulation system JT valve, a liquefied refrigerant storage tank, and the heat exchanger, and returns to the compressor. In a cryogenic energy generation route, the refrigerant flows through the compressor, the heat exchanger, an expansion unit, and the heat exchanger, and returns to the compressor. The controller determines if a refrigerant storage tank liquid level is within an allowable range, manipulates a feed system JT valve opening rate to control refrigerant temperature at the high-temperature-side refrigerant flow path exit side of the heat exchanger, and manipulates the opening rate of the feed system JT valve to control the refrigerant storage tank liquid level so that the refrigerant storage tank liquid level falls into the predetermined allowable range.

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Patent Owner(s)

  • KAWASAKI JUKOGYO KABUSHIKI KAISHA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kariya, Daisuke Kobe, JP 6 16
Kimura, Yosuke Kakogawa, JP 51 2350
Komiya, Toshihiro Kakogawa, JP 3 17
Matsuda, Yoshihiro Kobe, JP 26 417
Miwa, Yasuo Kobe, JP 5 38
Miyazaki, Hidetaka Kobe, JP 10 86
Nakagawa, Keisuke Kobe, JP 6 7
Saitou, Yuichi Akashi, JP 3 20
Sakamoto, Tomohiro Akashi, JP 17 75
Yamazoe, Naotaka Akashi, JP 2 1

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