Nuclear power plant providing a function of suppressing the deposition
of radioactive substance
    22.
    发明授权
    Nuclear power plant providing a function of suppressing the deposition of radioactive substance 失效
    提供抑制放射性物质沉积功能的核电站

    公开(公告)号:US4722823A

    公开(公告)日:1988-02-02

    申请号:US525889

    申请日:1983-08-24

    摘要: A nuclear power plant using a structural material consisting of metal which comes into contact with a liquid in which radioactive substances are dissolved has a function to suppress the deposition of the radioactive substances. In this function, metal elements constituting the surface layer of the structural material which comes into contact with the liquid are oxidized by injecting oxidizing agents from outside, thereby preliminarily producing an oxide film. The oxidizing agents comprise at least one kind selected from the group consisting of oxygen, hydrogen peroxide, chromate, nitrite, molybdate, tungstate and ferrate. Particularly, by suppressing the deposition of radioactive substances on a stainless steel, the dose rate of exposure of workers is effectively reduced.

    摘要翻译: 使用与溶解有放射性物质的液体接触的金属构成的结构材料的核电站具有抑制放射性物质沉积的功能。 在该功能中,构成与液体接触的结构材料的表面层的金属元素通过从外部注入氧化剂而被氧化,从而预先生成氧化膜。 氧化剂包括选自氧,过氧化氢,铬酸盐,亚硝酸盐,钼酸盐,钨酸盐和高铁酸盐中的至少一种。 特别是通过抑制放射性物质在不锈钢上的沉积,有效地降低了工作人员的接触剂量。