The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 30, 2023
Filed:
Dec. 04, 2017
Raw material gas liquefying device and method of controlling this raw material gas liquefying device
Kawasaki Jukogyo Kabushiki Kaisha, Kobe, JP;
Tomohiro Sakamoto, Akashi, JP;
Hidetaka Miyazaki, Kobe, JP;
Naotaka Yamazoe, Akashi, JP;
Daisuke Kariya, Kobe, JP;
Yasuo Miwa, Kobe, JP;
Yuichi Saitou, Akashi, JP;
Yosuke Kimura, Kakogawa, JP;
Toshihiro Komiya, Kakogawa, JP;
Yoshihiro Matsuda, Kobe, JP;
Keisuke Nakagawa, Kobe, JP;
KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe, JP;
Abstract
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.