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    NUCLEAR REACTOR CONTROL METHOD AND APPARATUS
    3.
    发明申请
    NUCLEAR REACTOR CONTROL METHOD AND APPARATUS 审中-公开
    核反应堆控制方法和装置

    公开(公告)号：US20130301773A1

    公开(公告)日：2013-11-14

    申请号：US13782121

    申请日：2013-03-01

    Applicant: Neal Lawrence Mann

    Inventor： Neal Lawrence Mann

    IPC: G21C7/22

    CPC classification number: G21C7/22 ,  G21C5/02 ,  G21C15/00 ,  Y02E30/39

    Abstract: A method for controlling a nuclear reactor is disclosed. The method includes providing a moderator zone in a core of the nuclear reactor, providing a fuel in the moderator zone, and providing one or more housings, each having a cavity, adjacent to the fuel. The method also includes allowing movement of a moderator between the moderator zone and the cavity of the one or more housings at a lower portion of the one or more housings. The method further includes confining moderator in the cavity of the one or more housings at an upper portion of the one or more housings.

    Abstract translation: 公开了一种用于控制核反应堆的方法。 该方法包括在核反应堆的核心中提供调节区，在调节区中提供燃料，并且提供一个或多个与燃料相邻的具有空腔的壳体。 该方法还包括允许调节剂在一个或多个外壳的下部在调节器区域和一个或多个外壳的空腔之间移动。 该方法还包括在一个或多个壳体的上部将调节剂限制在一个或多个壳体的空腔中。

    Reactivity control system and method
    5.
    发明授权
    Reactivity control system and method 失效
    反应控制系统及方法

    公开(公告)号：US5130078A

    公开(公告)日：1992-07-14

    申请号：US667797

    申请日：1991-03-11

    Applicant: Charles W. Dillman

    Inventor： Charles W. Dillman

    IPC: F04D7/08 ,  F04D13/04 ,  F04D15/00 ,  F04D29/04 ,  F04D29/047 ,  F04D29/42 ,  F04D29/44 ,  G21C1/08 ,  G21C1/28 ,  G21C5/02 ,  G21C7/22 ,  G21C9/033 ,  G21C15/24 ,  G21C15/243

    CPC classification number: F04D29/047 ,  F04D13/043 ,  F04D15/0005 ,  F04D29/426 ,  F04D29/448 ,  F04D7/08 ,  G21C1/084 ,  G21C15/24 ,  G21C15/243 ,  G21C7/22 ,  G21C9/033 ,  G21C1/28 ,  G21C5/02 ,  G21Y2002/201 ,  G21Y2002/601 ,  G21Y2004/40 ,  Y02E30/31 ,  Y02E30/39

    Abstract: A method and system for controlling nuclear reactivity in a nuclear reactor are disclosed. The method includes maintaining a nuclear position solution at an initial poison pressure less than the steam pressure within the reactor vessel. The method further includes channeling a pressurizing fluid into the holding tank for pressurizing the poison solution to a pressure greater than the initial pressure thereof, and draining by gravity the poison solution from the holding tank and into the reactor vessel for mixing with the water to reduce reactivity in the core.The system includes the holding tank, apparatus for channeling the pressurizing fluid from the reactor vessel to the holding tank, apparatus for channeling the poison solution from the holding tank by gravity into the reactor vessel, and a controller for opening a normally closed pressurizing valve and a normally closed drain valve to allow flow of the pressurizing fluid to, and the drained poison solution from, the holding tank through the respective channeling apparatus.

    Abstract translation: 公开了一种用于控制核反应堆中的核反应性的方法和系统。 该方法包括维持核位置溶液的初始毒性压力小于反应器容器内的蒸汽压力。 该方法还包括将加压流体引导到储存罐中，以将毒液溶液加压至大于其初始压力的压力，并通过重力排出毒液从储存罐排入反应器容器中以与水混合以减少 核心反应性。 该系统包括储罐，用于将加压流体从反应器容器引导到储存罐的装置，用于将毒液从重力引导到反应堆容器中的装置，用于将毒液从重力引导到反应堆容器中的装置，以及用于打开常闭加压阀的控制器， 一个常闭的排水阀，以允许加压流体通过相应的通道装置从储液罐流出并排出毒液。

    Method of and device for the reduction of reactivity of a nuclear reactor core
    7.
    发明授权
    Method of and device for the reduction of reactivity of a nuclear reactor core 失效
    降低核反应堆核心反应性的方法和装置

    公开(公告)号：US4681732A

    公开(公告)日：1987-07-21

    申请号：US656989

    申请日：1984-10-03

    Applicant: Werner Mallener ,  Theodor Overhoff

    Inventor： Werner Mallener ,  Theodor Overhoff

    IPC: G21C7/06 ,  G21C7/22 ,  G21C9/02

    CPC classification number: G21C9/022 ,  G21C7/22 ,  Y02E30/33 ,  Y02E30/39

    Abstract: A method of operating a gas-cooled nuclear reactor having graphite fuel elements in which, to reduce the reactor, a quenching element is introduced which takes a particle of a reaction-reducing substance in a sheath which will melt or release the substance in vapor form so that the substance can penetrate in gaseous form through the surrounding graphite body and deposit upon fuel elements.

    Abstract translation: 一种操作具有石墨燃料元件的气冷式核反应堆的方法，其中为了减少反应器而引入淬火元件，该淬火元件将反应还原物质的颗粒置于鞘中，该鞘将蒸气形式熔化或释放物质 使得物质可以通过周围的石墨体以气态渗透并沉积在燃料元件上。

    Self rupturing gas moderator rod for a nuclear reactor
    8.
    发明授权
    Self rupturing gas moderator rod for a nuclear reactor 失效
    用于核反应堆的自破裂气体调节杆

    公开(公告)号：US4371495A

    公开(公告)日：1983-02-01

    申请号：US228007

    申请日：1981-01-23

    Applicant: George R. Marlatt

    Inventor： George R. Marlatt

    IPC: G21C3/32 ,  G21C3/326 ,  G21C7/22 ,  G21C7/27 ,  G21C7/26

    CPC classification number: G21C3/326 ,  G21C7/22 ,  Y02E30/34 ,  Y02E30/38 ,  Y02E30/39

    Abstract: 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.

    Abstract translation: 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。

    System for concentrating a moderating solution utilized in a pressurized water nuclear power plant
    9.
    发明授权
    System for concentrating a moderating solution utilized in a pressurized water nuclear power plant 失效
    用于浓缩加压水核电站的现代解决方案系统

    公开(公告)号：US3839159A

    公开(公告)日：1974-10-01

    申请号：US20339771

    申请日：1971-11-30

    Applicant: WESTINGHOUSE ELECTRIC CORP

    Inventor： DUNNAVANT A ,  GIARDINA A ,  VARGO A ,  VOTA J

    IPC: G21C7/22 ,  G21C19/32 ,  B01D3/00

    CPC classification number: G21C7/22 ,  Y02E30/32 ,  Y02E30/39 ,  Y10S203/19

    Abstract: A system for concentrating a solution of boric acid solution to a predetermined concentration and stripping the radioactive gases from the solution. The system is generally operable so that there is a continuous feed of weak boric acid solution and a continuous discharge of pure water from the system during the concentrating portion of the cycle and the system is operable so that when the boric acid solution reaches a predetermined concentration, the weak acid feed and pure water discharge are shut off, the pure water is recirculated through the system until the boric acid of predetermined concentration is removed to storage tanks. The system has sequentially operated controls which minimize the thermodynamic shock as the system is switched from the recycle portion of the cycle to the distillate discharge portion of the cycle.

    Abstract translation: 一种将硼酸溶液浓缩至预定浓度并从溶液中汽提放射性气体的系统。 该系统通常是可操作的，使得在循环的浓缩部分期间存在弱的硼酸溶液的连续进料和来自系统的纯水的连续排出，并且系统可操作使得当硼酸溶液达到预定浓度 ，弱酸进料和纯水排放被关闭，纯水通过系统再循环，直到预定浓度的硼酸被除去到储罐。 当系统从循环的循环部分切换到循环的馏出物排出部分时，系统具有使热力学冲击最小化的系统。

    Control system for gas-filled control rod
    10.
    发明授权
    Control system for gas-filled control rod 失效
    气体充填控制杆控制系统

    公开(公告)号：US3726760A

    公开(公告)日：1973-04-10

    申请号：US3726760D

    申请日：1968-11-08

    Applicant: COMMISSARIAT ENERGIE ATOMIQUE

    Inventor： ROCHE R

    IPC: G05D16/06 ,  G21C7/22

    CPC classification number: G05D16/0619 ,  G21C7/22 ,  Y02E30/39

    Abstract: A method and apparatus for regulating the pressure of a gaseous neutron-absorbing mixture contained in a circulation loop which is placed within a nuclear reactor core. The loop is respectively connected to a low-pressure reservoir and to a high-pressure reservoir by means of two electrovalve assemblies, the two reservoirs being connected to each other by means of a pump. The areas of the openings of the throttles which provide a communication between the circulation loop and each of the two reservoirs are variably controlled in dependence on the highest value of the pressures established within the vessels which are connected to each throttle.

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