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AssigneeMitsubishi Heavy Industries, Ltd.
InventorsYasutaka Harai, Satoru Kamohara, Tadakatsu Yodo, Shota Kobayashi, Shohei Otsuki, Nozomu Murakami, Wataru Nakazato, Takashi Hasegawa, Yutaka Tanaka, Tatsuo Ishiguro, Hironori Noguchi, Hideyuki Kudo, Takafumi Noda, Kazuhiro Yoshida
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Provided is a nuclear reactor unit that can reduce a temperature increase in a reactor core at the occurrence of an abnormality with a simple structure. Included are a reactor core having radioactive fuel and causing the radioactive fuel to cause a nuclear reaction and a nuclear reactor vessel housing the reactor core and hermetically sealing the reactor core. The nuclear reactor vessel includes an inner shroud covering the entire periphery of the reactor core and an outer shroud covering the entire periphery of the inner shroud. A first space formed by the outer shroud and the inner shroud is in a vacuum condition. The inner shroud includes a main body and a communicating part placed in part of the main body and communicating the first space to a second space, which is a space inside the inner shroud, when the reactor core reaches a threshold temperature or higher.
A nuclear reactor unit comprising:
A method for cooling a nuclear reactor unit that includes a reactor core that has radioactive fuel and causes the radioactive fuel to cause a nuclear reaction, a nuclear reactor vessel that houses the reactor core and hermetically seals the reactor core and a heat conductive part inserted into the reactor core, exposed to an exterior of the reactor vessel, and transmitting heat from the reactor core to the exterior of the reactor vessel by solid heat conduction, wherein
Dependencies are inferred from the claim text.