NUCLEAR REACTOR
    8.
    发明公开
    NUCLEAR REACTOR 审中-公开
    核反应堆

    公开(公告)号:EP3306618A1

    公开(公告)日:2018-04-11

    申请号:EP16803839.6

    申请日:2016-05-27

    IPC分类号: G21C1/20 G21C15/04

    摘要: The invention relates to the field of nuclear energy, more particularly to low-power and particularly low-power reactors. A nuclear reactor contains a housing with a reflector which forms a reactor core. The core has arranged therein primary process tubes, which are intended for circulating a coolant, and secondary process tubes, which are intended for accommodating elements of a control and protection system. The reactor also contains an intake chamber for coolant of a primary loop, and a discharge chamber for coolant of the primary loop, which are separated by a partition. The primary process tubes are designed in the form of Field tubes, the outer tubes of which are secured on the bottom of the intake chamber for the coolant of the primary loop, and the inner tubes are secured on the partition. Fuel assemblies are mounted in the inner tubes of the Field tubes on suspensions, which are secured on an upper portion of the discharge chamber for the coolant of the primary loop. The secondary process tubes are sealed off from the intake and discharge chambers for the coolant of the primary loop, and the inter-tube space of the core is filled with a medium or material which is transparent to neutrons.

    摘要翻译: 本发明涉及核能领域,更具体地涉及低功率且特别低功率的反应器。 核反应堆包含一个带反射器的外壳,形成反应堆堆芯。 核心在其中布置用于循环冷却剂的主过程管和用于容纳控制和保护系统的元件的辅助过程管。 该反应器还包含用于主回路的冷却剂的吸入腔室和用于主回路的冷却剂的排出腔室,其由隔板分开。 主过程管设计为现场管的形式,其外管固定在进气室的底部以用于主回路的冷却剂,并且内管固定在隔板上。 燃料组件安装在悬架上的Field管的内管中,悬架固定在排放腔的上部用于主回路的冷却剂。 次级处理管与主回路的冷却剂的进入和排出室密封,并且芯的管间空间填充有对中子透明的介质或材料。

    PASSIVE TECHNIQUES FOR LONG-TERM REACTOR COOLING
    9.
    发明公开
    PASSIVE TECHNIQUES FOR LONG-TERM REACTOR COOLING 有权
    长期反应堆冷却的被动技术

    公开(公告)号:EP2973595A2

    公开(公告)日:2016-01-20

    申请号:EP14810719.6

    申请日:2014-03-17

    申请人: BWXT mPower, Inc.

    IPC分类号: G21C15/04

    摘要: In a pressurized water reactor (PWR), emergency core cooling (ECC) responds to depressurization due to a vessel penetration break at the top of the pressure vessel by draining water from a body of water through an injection line into the pressure vessel. A barrier operates concurrently with the ECC to suppress flow of liquid water from the pressure vessel out the vessel penetration break. The barrier may comprise one or more of: (1) an injection line extension passing through the central riser to drain water into the central riser; (2) openings in a lower portion of a central riser to shunt some upward flow from the central riser into a lower portion of the downcomer annulus; and (3) a surge line providing fluid communication between a pressurizer volume at the top of the pressure vessel and the remainder of the pressure vessel which directs water outboard toward the downcomer annulus.

    摘要翻译: 在压水反应堆(PWR)中,应急堆芯冷却(ECC)响应由于压力容器顶部的容器穿透破坏而导致的减压,其中通过注入管线将水从水体排入压力容器。 屏障与ECC同时工作以抑制来自压力容器的液态水流出容器穿透破裂。 屏障可以包括以下中的一个或多个:(1)穿过中央立管以将水排入中央立管的注入管线延伸部; (2)中心立管下部的开口,以将来自中心立管的一些向上流动分流到下降管环的下部; (3)喘振线,其提供压力容器顶部处的加压容积和压力容器的其余部分之间的流体连通,所述压力容器将水引导向下降管的环空。