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公开(公告)号：US4612976A
公开(公告)日：1986-09-23
申请号：US578405
申请日：1984-02-09
CPC分类号： F28F1/003 , F22B1/066 , F28D7/106 , F28F9/26 , F28D2021/0054
摘要： A steam generator for a nuclear reactor cooled with liquid metal, comprising a bundle consisting of double-walled tubes (20) arranged inside an enclosure in which the liquid metal circulates. The tubes (20) which are substantially straight and directed in the axial direction of the steam generator enclosure are each formed by at least two successive sections (20a and 20b) in the axial direction. Each section (20a or 20b) comprises an outer tube (27a or 27b) welded at one of its ends to at least one leakage collecting chamber (25) arranged wholly inside the enclosure. The adjacent sections of the outer tubes (27a, 27b) are not joined together. Each section also comprises an inner tube (28a or 28b) welded to the adjacent inner tube, inside the chamber (25). The leakage space between the tubes (27 and 28) communicates solely with the inner space of at least one collecting chamber (25). The invention applies in particular to fast neutron nuclear reactors cooled with liquid sodium.
摘要翻译： 一种用液态金属冷却的核反应堆的蒸汽发生器，包括一个由设置在液体金属循环的外壳内的双壁管（20）组成的管束。 在蒸汽发生器壳体的轴向方向上基本上直线并且指向的管（20）各自由轴向方向上的至少两个连续部分（20a和20b）形成。 每个部分（20a或20b）包括一个外管（27a或27b），该外管（27a或27b）在其一端被焊接到完全设置在外壳内的至少一个泄漏收集室（25）。 外管（27a，27b）的相邻部分未连接在一起。 每个部分还包括在腔室（25）内部焊接到相邻内管的内管（28a或28b）。 管（27和28）之间的泄漏空间仅与至少一个收集室（25）的内部空间连通。 本发明特别适用于用液态钠冷却的快中子核反应堆。
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2.发明授权公开(公告)号：US08206677B2
公开(公告)日：2012-06-26
申请号：US13001224
申请日：2009-06-24
IPC分类号： G21F9/06
摘要： Method of treating sodium contained in the interconnected open pores of a structure placed in a cladding, the pores furthermore containing a radioactive substance. The method comprises the following successive steps: a) at least two slits are made over the entire length of the cladding; b) the sodium is converted to sodium carbonate by a carbonation reaction by bringing the structure into contact, via the slits, with a reactive gas mixture comprising steam, carbon dioxide and a gas inert with respect to sodium, in such a way that the expansion of the carbonate causes the cladding and the structure to open starting from the slits and results in the carbonation reaction propagating into the structure.
摘要翻译： 处理放置在包层中的结构的互连的开放孔中所含的钠的方法，所述孔还包含放射性物质。 该方法包括以下连续步骤：a）在包层的整个长度上形成至少两个狭缝; b）通过使结构通过狭缝与包含蒸汽，二氧化碳和相对于钠惰性的气体的反应性气体混合物接触，将碳酸钠转化为碳酸钠，使得膨胀 的碳酸盐使得包层和结构从狭缝开始打开并导致碳酸化反应传播到结构中。
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3.发明申请公开(公告)号：US20110098521A1
公开(公告)日：2011-04-28
申请号：US13001224
申请日：2009-06-24
IPC分类号： G21F9/30
摘要： Method of treating sodium contained in the interconnected open pores of a structure placed in a cladding, the pores furthermore containing a radioactive substance. The method comprises the following successive steps: a) at least two slits are made over the entire length of the cladding; b) the sodium is converted to sodium carbonate by a carbonation reaction by bringing the structure into contact, via the slits, with a reactive gas mixture comprising steam, carbon dioxide and a gas inert with respect to sodium, in such a way that the expansion of the carbonate causes the cladding and the structure to open starting from the slits and results in the carbonation reaction propagating into the structure.
摘要翻译： 处理放置在包层中的结构的互连的开放孔中所含的钠的方法，所述孔还包含放射性物质。 该方法包括以下连续步骤：a）在包层的整个长度上形成至少两个狭缝; b）通过使结构通过狭缝与包含蒸汽，二氧化碳和相对于钠惰性的气体的反应性气体混合物接触，将碳酸钠转化为碳酸钠，使得膨胀 的碳酸盐使得包层和结构从狭缝开始打开并导致碳酸化反应传播到结构中。
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