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:
Oct. 08, 2019
Filed:
Jan. 31, 2017
Hitachi—ge Nuclear Energy, Ltd., Hitachi-shi, Ibaraki, JP;
Hitachi-GE Nuclear Energy, Ltd., Hitachi-shi, JP;
Abstract
An atomic power plant is provided including a primary containment vessel (PCV), a reactor pressure vessel (RPV), a main steam line, two steam safety relief valves (SRVs), a pressure suppression pool (S/P), an SRV exhaust pipewhich is connected to a quencher, a temperature measuring instrumentwhich measures a temperature inside the quencher, an SRV controllerwhich controls opening and closing of the SRVs. After a lapse of predetermined time from when the SRVis opened, in a case where it is determined that a temperature detected by the temperature measuring instrumentis equal to or smaller than a predetermined threshold value, the SRV controllercauses the SRVto which the temperature measuring instrumentdetecting the temperature leads, to be closed and to be prohibited from being opened.