Emergency condenser for boiling water reactor
专利汇可以提供Emergency condenser for boiling water reactor专利检索，专利查询，专利分析的服务。并且PURPOSE: To reduce the stresses due to the thermal expansion of heat-transfer pipes, and to enhance the heat-transfer performance, antiseismic resistance, and maintainability, in an emergency condenser for condensing the steam produced in a nuclear reactor by the decay heat at the time of the isolation of a BWR reactor for returning it into the reactor.
CONSTITUTION: To the upper tube sheet 14 facing to a steam chamber 13, a steam pipe 9 and the upper ends of L-shaped heat-transfer pipes 12 are connected, and the lower ends of the heat-transfer pipes 12 are connected to a lower tube sheet 15. These elements are immersed in pool water D. A condensate chamber 16 facing to the lower tube sheet 15 is situated inside the concrete wall 2' of a pool, and thereto a condensate piping 8 and a noncondensable-gas discharge piping 11 are connected, and also a manhole 17 is connected. When a nuclear reactor is isolated, the steam coming from the nuclear pressure vessel passes through the steam piping 9 and the steam chamber 13, and is cooled by the pool water through the heat-transfer pipes 12 and becomes condensate water, and it is returned by its water head from the condensate chamber 16 to the reactor pressure vessel via the condensate piping 8. To the upper tube sheet 14, supports 19, 19' for supporting the weight and earthquake load are fitted.
COPYRIGHT: (C)1992,JPO&Japio，下面是Emergency condenser for boiling water reactor专利的具体信息内容。
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