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:
Aug. 02, 2022
Filed:
Jan. 11, 2019
Hitachi-ge Nuclear Energy, Ltd., Hitachi, JP;
Hajime Furuichi, Tokyo, JP;
Takahisa Matsuzaki, Tokyo, JP;
Hitachi-GE Nuclear Energy, Ltd., Hitachi, JP;
Abstract
The invention provides a reactor containment vessel vent system capable of continuously releasing steam generated in a reactor containment vessel to the atmosphere even when a power supply is lost. In the reactor containment vessel vent system (), the noble gas filter () that allows steam to pass through but does not allow radioactive noble gases to pass through among vent gas discharged from the reactor containment vessel () is provided at a most downstream portion of the vent line. An immediate upstream portion of the noble gas filter () and the reactor containment vessel () are connected to each other by the return pipe () via the intermediate vessel (). Further, when the radioactive noble gases having pressure equal to or higher than predetermined pressure stays in the immediate upstream portion of the noble gas filter (), the staying radioactive noble gases flows into the intermediate vessel () by the relief valve (). Thus, the noble gas filter () does not lose steam permeability, and the reactor containment vessel vent system () can continuously release the steam to the atmosphere.