Invention Grant
- Patent Title: Reactor shutdown system
- Patent Title (中): 反应堆停机系统
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Application No.: US13296313Application Date: 2011-11-15
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Publication No.: US09589683B2Publication Date: 2017-03-07
- Inventor: Hiroshi Fujimoto , Hironobu Shinohara , Yasutake Akizuki , Toshiki Fukui , Yuichi Tanaka , Shinji Kiuchi , Hiroshi Shirasawa , Toshiaki Matsumura
- Applicant: Hiroshi Fujimoto , Hironobu Shinohara , Yasutake Akizuki , Toshiki Fukui , Yuichi Tanaka , Shinji Kiuchi , Hiroshi Shirasawa , Toshiaki Matsumura
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.,MITSUBISHI ELECTRIC CORPORATION
- Current Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.,MITSUBISHI ELECTRIC CORPORATION
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2010-275120 20101209
- Main IPC: G21C9/02
- IPC: G21C9/02 ; G21C9/027 ; G21D3/06 ; G21C7/08 ; G21C7/12
Abstract:
A reactor shutdown system includes a reactor, a control-rod drive unit that can drive a control rod in pulling and inserting directions with respect to a fuel assembly, a power source that can supply power to the control-rod drive unit, and a power converter that is provided between the control-rod drive unit and the power source, in which when power supply is cut off, the control-rod drive unit inserts the control rod into the fuel assembly to stop nuclear reaction in the reactor, and the reactor shutdown system includes a reactor trip breaker provided between the power converter and the control-rod drive unit, a safety protection-system device that controls the reactor trip breaker to cut off power supply to the control-rod drive unit, and a CCF device that controls the power converter to cut off power supply to the control-rod drive unit.
Public/Granted literature
- US20120148005A1 REACTOR SHUTDOWN SYSTEM Public/Granted day:2012-06-14
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