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公开(公告)号：US4371495A
公开(公告)日：1983-02-01
申请号：US228007
申请日：1981-01-23
申请人： George R. Marlatt
发明人： George R. Marlatt
摘要： An arrangement for controlling the moderation of a nuclear reactor which includes multiple fuel assemblies each of which includes top and bottom nozzles with fuel rods and control rod guide thimbles located therebetween. Certain ones of said assemblies include at least one tube initially filled with a gas. One end of the tube rests on the lower nozzle upper surface while the upper end terminates at a point just below the lower plate in the upper nozzle. A spike immovably fixed in the lower plate of the upper nozzle is directed downwardly toward the end of the tube. As the tube expands or grows during operation in a reactor, and at a point where the criticality factor may proceed to less than one, the expanded tube will be pierced by the spike and thus permit the escape of gas from the tube which is then replaced by water coolant circulating through the reactor. The additional water represented by the filled tube will act to slow down fast neutrons to a thermal neutron level and thus provide a greater amount of neutron effective in carrying forward the fissioning process.
摘要翻译： 一种用于控制核反应堆的调节的装置，其包括多个燃料组件，每个燃料组件包括顶部和底部喷嘴，燃料棒和控制棒导向套管位于它们之间。 所述组件中的某些组件包括至少一个最初填充有气体的管。 管的一端位于下喷嘴上表面上，而上端终止于上喷嘴中下板正下方的一点。 不可移动地固定在上喷嘴的下板中的钉指向下朝向管的端部。 当管在反应器运行期间膨胀或生长时，并且在临界因子可能进行到小于1的点，膨胀管将被尖钉刺穿，并且因此允许气体从管中逸出，然后被替换 通过冷却剂循环通过反应器。 由填充管代表的附加水将用于将快中子减慢到热中子水平，从而提供更大量的中子有效地推进分裂过程。
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公开(公告)号：US4934335A
公开(公告)日：1990-06-19
申请号：US302520
申请日：1989-01-27
申请人： George R. Marlatt
发明人： George R. Marlatt
CPC分类号： F23L17/005 , F24C15/002
摘要： A power vent for a furnace or the like comprises an air inlet tube having axially opposed ends; one end has an air intake opening which will normally locate outdoors; the opposed end connects to the inlet of a blower, with the outlet of the blower connecting to a vent tube. The flue of the furnace connects to the air inlet tube intermediate the ends thereof. The vent tube may suitably locate coaxilly within the inlet tube. The system will normally be sized such that the ratio of fresh air to flue gas is from about 5:1 to about 50:1, and residence times between the flue entry to the air inlet tube and the blower outlet are low, of the order of 0.01 second, thereby reducing the incidence of condensation and icing in the power vent. The system may be balanced, for example by varying the area of the air intake opening, whereby negative pressures within the furnace are avoided, thereby increasing the efficiency of furnace operation.
摘要翻译： 用于炉等的电源通风口包括具有轴向相对端的进气管; 一端有通常在户外定位的进气口; 相对端连接到鼓风机的入口，鼓风机的出口连接到排气管。 炉的烟道在其末端的中间连接到进气管。 排气管可适当地定位在入口管内同轴。 该系统通常的尺寸应使得新鲜空气与烟气的比率为约5:1至约50:1，并且进入空气入口管和鼓风机出口的烟道入口之间的停留时间较低 0.01秒，从而减少电源通风口中的冷凝和结冰的发生。 该系统可以是平衡的，例如通过改变进气口的面积，从而避免炉内的负压，从而提高炉的操作效率。
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公开(公告)号：US4427624A
公开(公告)日：1984-01-24
申请号：US239787
申请日：1981-03-02
CPC分类号： G21C3/32 , G21C3/3206 , G21C3/324 , Y02E30/40
摘要： A composite nozzle for a fuel assembly adapted for installation on the upper or lower end thereof and which is constructed from two components. The first component includes a casting weldment or forging designed to carry handling loads, support fuel assembly weight and flow loads, and interface with structural members of both the fuel assembly and reactor internal structures. The second component of the nozzle consists of a thin stamped bore machine flow plate adapted for attachment to the casting body. The plate is designed to prevent fuel rods from being ejected from the core and provide orifices for coolant flow to a predetermined value and pressure drop which is consistent with the flow at other locations in the core.
摘要翻译： 一种用于燃料组件的复合喷嘴，其适于安装在其上端或下端，并由两部分构成。 第一部件包括铸造焊件或锻造，其设计用于承载处理负载，支撑燃料组件的重量和流动负载，以及与燃料组件和反应堆内部结构的结构构件的连接。 喷嘴的第二部件包括适于附接到铸造体的薄冲压孔机流动板。 板被设计成防止燃料棒从芯部排出并且提供用于冷却剂流动的孔到与芯中的其它位置处的流动一致的预定值和压降。
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公开(公告)号：USRE33030E
公开(公告)日：1989-08-22
申请号：US827172
申请日：1986-02-05
申请人： George R. Marlatt
发明人： George R. Marlatt
摘要： An arrangement for controlling the moderation of a nuclear reactor which includes multiple fuel assemblies each of which includes top and bottom nozzles with fuel rods and control rod guide thimbles located therebetween. Certain ones of said assemblies include at least one tube initially filled with a gas. One end of the tube rests on the lower nozzle upper surface while the upper end terminates at a point just below the lower plate in the upper nozzle. A spike immovably fixed in the lower plate of the upper nozzle is directed downwardly toward the end of the tube. As the tube expands or grows during operation in a reactor, and at a point where the criticality factor may proceed to less than one, the expanded tube will be pierced by the spike and thus permit the escape of gas from the tube which is then replaced by water coolant circulating through the reactor. The additional water represented by the filled tube will act to slow down fast neutrons to a thermal neutron level and thus provide a greater amount of neutron effective in carrying forward the fissioning process.
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公开(公告)号：US4575448A
公开(公告)日：1986-03-11
申请号：US357237
申请日：1982-03-11
申请人： George R. Marlatt
发明人： George R. Marlatt
摘要： A nuclear reactor system in which the neutron-energy spectrum is displaced towards lower energy (enthalpy) by a control selectively operable by commands outside of the reactor. The core of the reactor contains, in addition to fuel assemblies, sealed tubes filled with helium. The selective control of the neutron energy spectrum includes a master cylinder having a master piston. The master cylinder is immersed in the coolant and admits the coolant through a check valve. The admitted coolant serves as hydraulic fluid of the cylinder. When the external command to shift the neutron-energy spectrum is entered, the master piston compresses the coolant in the master cylinder. The compressed coolant flows into slave cylinders displacing their slave pistons. The slave pistons carry piston rods which drive rupturing tools into engagement with the tubes rupturing the tubes and admitting the coolant which is a neutron moderator and enhances the moderaton of the neutron energy.
摘要翻译： 核反应堆系统，其中中子能谱通过由反应器外部的指令有选择地操作的控制向较低能量（焓）移动。 除了燃料组件之外，反应器的核心还包含充满氦气的密封管。 中子能谱的选择性控制包括具有主活塞的主缸。 主缸浸入冷却液中，并通过止回阀使冷却液进入。 允许的冷却剂用作气缸的液压流体。 当输入转移中子能谱的外部命令时，主活塞压缩主缸中的冷却液。 压缩的冷却剂流入从动缸，使其从动活塞移位。 从动活塞带有活塞杆，其驱动破裂工具与管破裂的管接合，并允许作为中子减速器的冷却剂，并增强中子能量的中等偏差。
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