Temporary hot cell and related method for handling high radiation level
sources
    1.
    发明授权
    Temporary hot cell and related method for handling high radiation level sources 失效
    临时热电池及相关处理高辐射源的方法

    公开(公告)号:US4876593A

    公开(公告)日:1989-10-24

    申请号:US158009

    申请日:1988-02-19

    IPC分类号: G21F7/03

    CPC分类号: G21F7/03

    摘要: A temporary hot cell and related method for handling high radiation level sources having wall, ceiling and floor structures comprised at least in part of temporary structures forming an enclosure to reduce to acceptable levels radiation of the surround from high level radiation sources handled within the enclosure. Preferably one or more manipulator arms extended through a wall structure of the enclosure to permit handling of the high level radiation sources within the enclosure by an operator located external to the enclosure. A window is positioned in the wall structure of the enclosure to allow an external operator to view handling of the radiation sources. The hot cell preferably also has a false floor, a filter and vent system sheeting to cover portions of the inner surface of the temporary structure forming the enclosure hot cell.

    摘要翻译: 一种用于处理具有墙壁,天花板和地板结构的高辐射水平源的临时热电池和相关方法,其包括至少部分临时结构,形成外壳,以将外壳中的高级辐射源的环绕辐射降低到可接受的水平。 优选地,一个或多个操纵器臂延伸穿过外壳的壁结构,以允许位于外壳外部的操作者处理外壳内的高级辐射源。 窗口被定位在外壳的壁结构中,以允许外部操作者观察辐射源的处理。 热电池还优选地还具有假地板,过滤器和通风系统,以覆盖形成封闭热电池的临时结构的内表面的部分。

    Process for electric power production using a biogas
    2.
    发明授权
    Process for electric power production using a biogas 失效
    使用沼气的电力生产工艺

    公开(公告)号:US4638629A

    公开(公告)日:1987-01-27

    申请号:US841670

    申请日:1986-03-19

    IPC分类号: F02C3/22 F02C3/28

    CPC分类号: F02C3/22 F02C3/28 Y02E50/12

    摘要: Electric power is produced in an electric power generating combustion turbine using a biogas as fuel thereto, where a biogas, leaving a biomass gasification system at an elevated temperature of 650.degree.-875.degree. C. and containing tars, is partially cooled by injection of a spray of water thereto to a lower temperature of about 260.degree.-555.degree. but above that which would condense tars. The partially cooled biogas stream is then filtered to remove solid particulate matter therefrom and is directly charged as fuel to the electric power producing combustion turbine for the production of electric power.

    摘要翻译: 在使用生物气体作为燃料的发电用燃气轮机中产生电力,其中将生物质气化系统留在650℃-875℃的高温并含有焦油的生物气体通过注入 将水喷雾至约260°-555°的较低温度,但高于将焦化焦油的温度。 然后将部分冷却的沼气流过滤以从其中除去固体颗粒物质,并将其直接作为燃料加载到发电用燃料涡轮机中以产生电力。

    System and method for cleaning the inner surface of tubular members
    4.
    发明授权
    System and method for cleaning the inner surface of tubular members 失效
    用于清洁管状构件内表面的系统和方法

    公开(公告)号:US5046289A

    公开(公告)日:1991-09-10

    申请号:US307103

    申请日:1989-02-06

    IPC分类号: B24C3/32 G21F9/00

    CPC分类号: G21F9/005 B24C3/325

    摘要: System and method for abrading radioactive contaminants from the inside surface of a pipe. The system includes a nozzle block capable of mixing a liquid and an abrasive grit into a suitable liquid-abrasive grit cleaning composition and impinging the cleaning composition against the inside surface of the pipe. The system further includes an inflatable torus-shaped seal for confining the liquid-abrasive grit cleaning composition to a predetermined portion of the inside surface of the pipe so that substantially all of the contaminants and cleaning composition can be suitably vacuumed from the surface.

    摘要翻译: 从管内表面研磨放射性污染物的系统和方法。 该系统包括能够将液体和磨料砂粒混合到合适的液体磨料砂粒清洁组合物中并将清洁组合物抵靠在管的内表面上的喷嘴块。 该系统还包括一个可膨胀的环形密封件,用于将液体磨料砂粒清洁组合物限制在管子内表面的预定部分,使得基本上所有的污染物和清洁组合物都可以从表面被适当地抽真空。

    Clean-up sub-system for chemical decontamination of nuclear reactor
primary systems
    7.
    发明授权
    Clean-up sub-system for chemical decontamination of nuclear reactor primary systems 失效
    核反应堆主要系统化学除污清理子系统

    公开(公告)号:US5089217A

    公开(公告)日:1992-02-18

    申请号:US621129

    申请日:1990-11-26

    IPC分类号: G21F9/00 G21F9/06 G21F9/12

    CPC分类号: G21F9/06 G21F9/002 G21F9/12

    摘要: A unique clean-up sub-system for chemical decontamination of nuclear reactor primary systems is disclosed. Chemically-processed fluids containing suspended and dissolved solids are directed through a back-flushable filter and, thereafter, through one or more cartridge filters. After this initial filtering of suspended solids, the process fluid is directed to one or more demineralizer banks for removal of dissolved solids, followed by additional cartridge filtering to remove any resin fines carried out of the demineralizer banks. After final filtering, the process fluids are returned to the primary system, with or without chemical injection.

    摘要翻译: 公开了用于核反应堆主要系统的化学去污的独特清理子系统。 含有悬浮和溶解固体的化学处理流体被引导通过可反冲洗的过滤器,然后通过一个或多个筒式过滤器。 在初始过滤悬浮固体之后,将过程流体引导至一个或多个去矿物质组以除去溶解的固体,随后进行另外的滤筒过滤以除去从脱盐剂组中进行的任何树脂细粉。 在最终过滤之后,将过程流体返回到初级系统,无论是否进行化学注入。

    Clean-up system for the chemical decontamination of a nuclear reactor
primary system
    9.
    发明授权
    Clean-up system for the chemical decontamination of a nuclear reactor primary system 失效
    核反应堆主要系统的化学除污清理系统

    公开(公告)号:US5325410A

    公开(公告)日:1994-06-28

    申请号:US983503

    申请日:1992-11-30

    IPC分类号: G21C19/307 G21F9/12 G21C19/42

    摘要: A chemical decontamination clean-up system for use on-line in a nuclear reactor primary system includes a pump arrangement within the nuclear reactor primary system for pumping primary system fluids to a cleaning system located directly downstream from the pump assembly. The cleaning system includes a plurality of first demineralizer banks arranged in a predetermined flow pattern for receiving the primary system fluids. Each of the first demineralizer banks comprises at least two individual, resin-filled demineralizers arranged in parallel wherein primary system fluids are demineralized. Each of the demineralizer banks includes valving for selectively directing the primary system fluids from the pump arrangement to selected demineralizer banks in the plurality of the first demineralizer banks. A second demineralizer bank receives the primary system fluids from the plurality of first demineralizer banks. The second demineralizer bank includes at least two individual, resin-filled demineralizers arranged in parallel wherein primary system fluids are "finish" demineralized. A return system receives the primary system fluids from the second demineralizer bank and directs the fluids back to the nuclear reactor primary system. The return system includes at least one trap for receiving the primary system fluids from the second demineralizer bank and operable to remove resin suspended in the primary system fluids, and at least one filter downstream from the trap for removing solids suspended in the primary system fluids prior to the return of the fluids to the nuclear reactor primary system.

    摘要翻译: 在核反应堆主系统中在线使用的化学净化清理系统包括在核反应堆主系统内的泵装置,用于将初级系统流体泵送到位于泵组件正下游的清洁系统。 清洁系统包括以预定的流动方向布置的用于接收主要系统流体的多个第一去矿化剂组。 每个第一脱盐剂组包括平行布置的至少两个单独的充满树脂的脱盐装置,其中主系统流体被软化。 每个软化器组包括阀,用于将主系统流体从泵装置选择性地引导到多个第一脱盐剂组中的选定的脱盐剂组。 一个第二脱盐机组从多个第一脱盐机组接收主系统流体。 第二脱盐器组包括平行布置的至少两个单独的树脂充填的软化器,其中主系统流体被“完成”去矿物质。 返回系统接收来自第二脱盐器组的主系统流体并将流体引导回到核反应堆主系统。 返回系统包括至少一个用于从第二脱盐剂组接收主要系统流体的捕集器,并可操作以移除悬浮在主系统流体中的树脂,以及至少一个过滤器下游的过滤器,用于去除悬浮在主系统流体中的固体 将流体返回到核反应堆主要系统。

    Resin processing system
    10.
    发明授权
    Resin processing system 失效
    树脂加工系统

    公开(公告)号:US5139734A

    公开(公告)日:1992-08-18

    申请号:US621130

    申请日:1990-11-26

    IPC分类号: G21C19/307

    CPC分类号: G21C19/307

    摘要: A unique resin processing system for providing and removing resin to large demineralizer vessels during chemical decontamination of nuclear reactor primary systems is disclosed. Resin is premeasured in a batching tank for accurate filling of demineralilzer resin bed while minimizing personnel radioactivity exposure. Sluice water transfers spent resin to a storage tank and, thereafter, is recycled for subsequent sluicing operations. Spent resin from the storage tank is periodically delivered to high integrity containers for ultimate disposal.

    摘要翻译: 公开了一种独特的树脂加工系统,用于在核反应堆主要系统的化学去污处理中为大型脱盐剂容器提供和除去树脂。 在配料槽中预先测量树脂,以精确地填充脱矿砂浆树脂床,同时尽量减少人员的放射性暴露。 水闸将废树脂转移到储罐中,然后再循环用于随后的洗涤操作。 定期将来自储罐的废树脂输送到高度完整的容器中,以便最终处置。