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1. 发明公开

EP0409407A2 Control rod absorber configuration 失效
标题翻译： Absorberanordnung eines Steuerstabes。
公开(公告)号：EP0409407A2
公开(公告)日：1991-01-23
申请号：EP90306629.8
申请日：1990-06-18
申请人： GENERAL ELECTRIC COMPANY
发明人： Van Diemen, Paul , Brayman, Kenneth Wood
IPC分类号： G21C7/113 , G21C7/103
CPC分类号： G21C7/113 , G21Y2002/201 , G21Y2004/10 , G21Y2004/30 , Y02E30/39
摘要： A control rod construction especially for a boiling water nuclear reactor is disclosed in which at least some individual control rod elements include neutron absorbing poison, typically boron carbide (30), with hafnium cladding (32). In prior art construction, the entirety of the control elements have claddings of stainless steel; in the construction disclosed herein hafnium-clad, boron-carbide-containing control rods are used, preferably selectively interleaved with conventional stainless steel clad rod elements (33). The interleaving of the hafnium clad boron carbide with the stainless steel clad boron carbide maintains an operational balance between the desired worth of the control rod on one hand and the total weight of the control rod unit on the other hand. The combination of the hafnium and boron carbide, both of which constitute neutron absorbers, is complementary. The boron carbide and hafnium each have neutron absorbing capabilities independent of one another. The result is that the neutron absorption of the hafnium clad boron carbide exceeds the neutron absorption of either the boron carbide alone or the hafnium alone.
摘要翻译：公开了特别用于沸水核反应堆的控制杆结构，其中至少一些单独的控制棒元件包括中子吸收毒物，通常为碳化硼（30）和铪包层（32）。在现有技术的结构中，整个控制元件具有不锈钢的包层; 在本文公开的结构中，使用包含铪，含碳化硼的控制棒，优选地选择性地与传统的不锈钢复合棒元件（33）交错。铪包覆碳化硼与不锈钢包覆碳化硼的交错在一方面保持控制棒的期望值与另一方面控制棒单元的总重量之间的操作平衡。构成中子吸收剂的铪和碳化硼的组合是互补的。碳化硼和铪均具有彼此独立的中子吸收能力。结果是铪包覆碳化硼的中子吸收超过单独的碳化硼或单独的铪的中子吸收。

2. 发明公开

EP0409407A3 Control rod absorber configuration 失效
标题翻译：控制杆吸收配置
公开(公告)号：EP0409407A3
公开(公告)日：1991-04-03
申请号：EP90306629.8
申请日：1990-06-18
申请人： GENERAL ELECTRIC COMPANY
发明人： Van Diemen, Paul , Brayman, Kenneth Wood
IPC分类号： G21C7/113 , G21C7/103
CPC分类号： G21C7/113 , G21Y2002/201 , G21Y2004/10 , G21Y2004/30 , Y02E30/39
摘要： A control rod construction especially for a boiling water nuclear reactor is disclosed in which at least some individual control rod elements include neutron absorbing poison, typically boron carbide (30), with hafnium cladding (32). In prior art construction, the entirety of the control elements have claddings of stainless steel; in the construction disclosed herein hafnium-clad, boron-carbide-containing control rods are used, preferably selectively interleaved with conventional stainless steel clad rod elements (33). The interleaving of the hafnium clad boron carbide with the stainless steel clad boron carbide maintains an operational balance between the desired worth of the control rod on one hand and the total weight of the control rod unit on the other hand. The combination of the hafnium and boron carbide, both of which constitute neutron absorbers, is complementary. The boron carbide and hafnium each have neutron absorbing capabilities independent of one another. The result is that the neutron absorption of the hafnium clad boron carbide exceeds the neutron absorption of either the boron carbide alone or the hafnium alone.
摘要翻译：公开了特别用于沸水核反应堆的控制杆结构，其中至少一些单独的控制棒元件包括中子吸收毒物，通常为碳化硼（30）和铪包层（32）。在现有技术的结构中，整个控制元件具有不锈钢的包层; 在本文公开的结构中，使用包含铪，含碳化硼的控制棒，优选地选择性地与传统的不锈钢复合棒元件（33）交错。铪包覆碳化硼与不锈钢包覆碳化硼的交错在一方面保持控制棒的期望值与另一方面控制棒单元的总重量之间的操作平衡。构成中子吸收剂的铪和碳化硼的组合是互补的。碳化硼和铪均具有彼此独立的中子吸收能力。结果是铪包覆碳化硼的中子吸收超过单独的碳化硼或单独的铪的中子吸收。

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