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    Insulated protective coating doped with a noble metal for mitigation of stress corrosion cracking
    1.
    发明授权
    Insulated protective coating doped with a noble metal for mitigation of stress corrosion cracking 失效
    掺有贵金属的绝缘保护涂层，用于缓解应力腐蚀开裂

    公开(公告)号：US5581588A

    公开(公告)日：1996-12-03

    申请号：US494050

    申请日：1995-06-23

    申请人： Peter L. Andresen

    发明人： Peter L. Andresen

    IPC分类号： G21C5/00 ,  C23C4/10 ,  C23C30/00 ,  C23F11/00 ,  C23F15/00 ,  G21C3/06 ,  G21C13/08 ,  G21C13/087 ,  G21C17/022 ,  G21D1/00 ,  G21C9/00

    CPC分类号： G21C17/0225 ,  C23F11/00 ,  G21C13/087 ,  G21Y2002/104 ,  G21Y2004/304 ,  G21Y2004/403

    摘要： A method for mitigating crack initiation and propagation on the surface of metal components in a water-cooled nuclear reactor. An electrically insulating coating doped with a noble metal is applied on the surfaces of IGSCC-susceptible reactor components. The preferred electrically insulating material is yttria-stabilized zirconia doped with palladium or platinum. The presence of an electrically insulating coating on the surface of the metal components shifts the corrosion potential in the negative direction without the addition of hydrogen. Corrosion potentials .ltoreq.-0.5 V.sub.SHE are believed to be achievable even at high oxidant concentrations and in the absence of hydrogen, although the coatings are believed to be particularly suited to applications where a reductant, such as hydrogen, is present.

    摘要翻译： 一种减轻水冷核反应堆中金属组分表面裂纹引发和扩散的方法。 掺杂有贵金属的电绝缘涂层施加在IGSCC敏感反应器部件的表面上。 优选的电绝缘材料是掺杂有钯或铂的氧化钇稳定的氧化锆。 在金属组分的表面上存在电绝缘涂层使腐蚀电位在负方向移动而不加氢。 据信即使在高氧化剂浓度和不存在氢的情况下，腐蚀电位

    Component nuclear containment structure
    4.
    发明授权
    Component nuclear containment structure 失效
    组分核遏制结构

    公开(公告)号：US4175005A

    公开(公告)日：1979-11-20

    申请号：US856906

    申请日：1977-12-02

    申请人： Gunnar A. Harstead

    发明人： Gunnar A. Harstead

    IPC分类号： G21C13/08

    CPC分类号： G21C13/08 ,  Y02E30/40

    摘要： The invention described herein is intended for use primarily as a nuclear containment structure. Such structures are required to surround the nuclear steam supply system and to contain the effects of breaks in the nuclear steam supply system, or i.e. loss of coolant accidents. Nuclear containment structures are required to withstand internal pressure and temperatures which result from loss of coolant accidents, and to provide for radiation shielding during operation and during the loss of coolant accident, as well as to resist all other applied loads, such as earthquakes. The nuclear containment structure described herein is a composite nuclear containment structure, and is one which structurally combines two previous systems; namely, a steel vessel, and a lined concrete structure.Whereas the steel vessel provides strength to resist internal pressure and accommodate temperature increases, the lined concrete structure provides resistance to internal pressure by having a liner which will prevent leakage, and which is in contact with the concrete structure which provides the strength to resist the pressure.

    摘要翻译： 本文描述的发明主要用作核容纳结构。 这种结构需要围绕核蒸汽供应系统并且包含核蒸汽供应系统中的断裂的影响，或者即冷却剂事故的损失。 核密封结构需要承受由于冷却剂事故的损失而导致的内部压力和温度，并且在运行期间和在冷却剂事故的损失期间提供辐射屏蔽以及抵抗所有其他施加的负载，例如地震。 本文所述的核储存结构是复合核容限结构，并且是结构上结合两个先前系统的结构; 即钢船，内衬混凝土结构。 而钢容器提供抵抗内部压力并适应温度升高的强度，衬里混凝土结构通过具有防止泄漏的衬垫提供抵抗内部压力，并且与提供抵抗压力的强度的混凝土结构接触 。

    Pressure vessel especially for a nuclear reactor
    6.
    发明授权
    Pressure vessel especially for a nuclear reactor 失效
    特别是用于核反应堆的压力容器

    公开(公告)号：US4047632A

    公开(公告)日：1977-09-13

    申请号：US635637

    申请日：1975-11-26

    申请人： Franz Schilling

    发明人： Franz Schilling

    IPC分类号： G21C13/073 ,  G21C13/08 ,  B65D45/00

    CPC分类号： G21C13/073 ,  G21C13/08 ,  Y02E30/40 ,  Y10T292/0877 ,  Y10T292/20 ,  Y10T292/218

    摘要： A pressure vessel, containment or burst shield for a nuclear reactor has a substantially circular cover (closing the top or bottom of a cylindrical casing or shell) comprised of a plurality of layers, each formed from a multiplicity of segments meeting a central part. The adjoining segments of each layer meet at joints which are staggered with respect to the joints of the adjacent layers above or below and hence no continuous crevices are provided through the cover. Tension members extend through aligned passages of the several layers and provide support against shear and thrust forces.

    摘要翻译： 用于核反应堆的压力容器，容纳物或爆裂屏蔽具有大体上圆形的盖（封闭圆柱形壳体或壳体的顶部或底部），其由多个层构成，每个层由满足中心部分的多个段形成。 每个层的相邻段在相邻层的接合处交错交错的关节处相交，因此不存在通过盖的连续缝隙。 张紧构件延伸穿过几层的对准通道，并提供支撑以抵抗剪切力和推力。