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    • 53. 发明公开
    • Pressurized water reactor having improved calandria assembly
    • Druckwasserreaktor mit mitesserter Innenmantelkonstruktion。
    • EP0240335A2
    • 1987-10-07
    • EP87302834.4
    • 1987-04-01
    • WESTINGHOUSE ELECTRIC CORPORATION
    • Gillett, James EdwinGoossen, John E.
    • G21C5/10G21C1/08G21C15/18
    • G21C1/086G21C5/10G21C15/18Y02E30/32
    • A nuclear reactor with control-rods movable into and out of its core has a calandria structure (50) above the area of movement of the control-rods. The coolant flow from the core remains axially upward in the area of movement of the control-rods. Radial coolant flow occurs through the calandria (50) past the tubes (56) between upper and lower calandria plates (54, 52) which receive the drive shafts (200, 201) for the control-rods so as to protect the drive shafts (200, 201) from the transverse flow of coolant within the calandria (39). Connecting tubes (60, 61) surround the drive shafts (200, 201) above the calandria (50) and at least some of the connecting tubes (66, 61) have flow holes (221) just above the calandria and diverter means (222) disposed within so as to prevent water from jetting directly onto the drive shafts (200,201).
    • 具有可移入和移出其核心的控制棒的核反应堆具有位于控制棒运动区域之上的卡兰德里亚结构(50)。 来自芯体的冷却剂流在控制棒的运动区域中保持轴向向上。 径向冷却剂流动通过卡管(50)通过容纳用于控制棒的驱动轴(200,201)的上压缩弹簧板(54,52)之间的管(56)发生,以保护驱动轴( (39)中的冷却剂的横向流动。 连接管(60,61)围绕加热器(50)上方的驱动轴(200,201)包围,并且连接管(66,61)中的至少一些具有位于加热器正上方的流动孔(221)和分流装置(222) ),以防止水直接喷射到驱动轴(200,201)上。