发明名称 |
HOLD-DOWN SPRING UNIT FOR TOP NOZZLE OF NUCLEAR FUEL ASSEMBLY HAVING IMPROVED HOLD-DOWN PERFORMANCE AND TOP NOZZLE FOR NUCLEAR FUEL ASSEMBLY HAVING THE SAME |
摘要 |
Disclosed herein is a hold-down spring unit for a top nozzle of a nuclear fuel assembly. The hold-down spring unit is coupled to the upper end of the top nozzle of the nuclear fuel assembly. The hold-down spring unit includes a first spring which acts against a hold-down force with respect to the nuclear fuel assembly under start-up conditions or hot full power conditions of a nuclear reactor, and a second spring which acts against a hold-down force with respect to the nuclear fuel assembly under start-up conditions of the nuclear reactor. The present invention reduces the hold-down margin under start-up conditions or hot full power conditions, thus enhancing the mechanical and structural stability of the nuclear fuel assembly.
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申请公布号 |
US2011182395(A1) |
申请公布日期 |
2011.07.28 |
申请号 |
US20100748369 |
申请日期 |
2010.03.26 |
申请人 |
PARK JOON KYOO;LEE JIN SEOK;JEON KYEONG LAK;SUH JUNG MIN;GWON GI-JUN;PARK NAM GYU;EOM KYONG BO;KIM JIN SUN;HA DONG GEUN;KIM KYOUNG JOO |
发明人 |
PARK JOON KYOO;LEE JIN SEOK;JEON KYEONG LAK;SUH JUNG MIN;GWON GI-JUN;PARK NAM GYU;EOM KYONG BO;KIM JIN SUN;HA DONG GEUN;KIM KYOUNG JOO |
分类号 |
G21C3/02 |
主分类号 |
G21C3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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