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:
Apr. 21, 2009
Filed:
Oct. 01, 2003
Jae-hyuk Eoh, Seoul, KR;
Yoon-sub Sim, Daejeon, KR;
Seong-o Kim, Daejeon, KR;
Dohee Hahn, Daejeon, KR;
Jae-Hyuk Eoh, Seoul, KR;
Yoon-Sub Sim, Daejeon, KR;
Seong-O Kim, Daejeon, KR;
Dohee Hahn, Daejeon, KR;
Korea Atomic Energy Research Institute, Daejeon, KR;
Korea Hydro & Nuclear Power Co., Ltd., Seoul, KR;
Abstract
A direct pool cooling type passive safety grade decay heat removal method and system for removing core decay heat in a pool type liquid metal reactor when a normal heat removal system breaks down. In the liquid metal reactor comprising a reactor vessel, the interior of which is partitioned into a hot pool above a core and a cold pool around the core so that liquid level difference between the hot pool and the cold pool is maintained by a primary pumping head under normal steady-state conditions, is disposed at least one circular vertical tube in such a manner that the sodium in the circular vertical tube is maintained with the same liquid level as the liquid level of the sodium in the cold pool. In the circular vertical tube is disposed a sodium-sodium heat exchanger, which is connected to a sodium-air heat exchanger mounted above a reactor building via a heat removing sodium loop, in such a manner that it is placed at the position higher than a liquid level of the sodium in the cold pool under the normal steady-state conditions.