Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Neutron absorption ball for high-temperature gas cooled reactor and preparation method of neutron absorption ball
The invention discloses a neutron absorption ball for a high-temperature gas cooled reactor and a preparation method of the neutron absorption ball, and belongs to the technical field of absorption ball shutdown systems of pebble-bed high-temperature gas cooled reactors. Graphite nodules are used as an inner core, boron carbide is used as an outer coating layer, and the thickness of the boron carbide layer is 0.25-0.50 mm. Boron carbide (B4C) is adopted as a coating layer on the surface of the graphite ball, so that the neutron absorption area can be increased, the neutron absorption efficiency can reach 96% at most, meanwhile, the number of the absorption balls can be reduced, the weight of a single absorption ball can be reduced, the size of an absorption ball storage tank is reduced, the arrangement scheme of a reactor system is simplified, and the production cost is reduced. Meanwhile, the absorption balls can be conveniently blown out of a reactor core area when a reactor is started, meanwhile, the boron carbide (B4C) ceramic material has excellent abrasion resistance, the phenomenon that graphite dust is generated due to mutual friction of the absorption balls is effectively avoided, and meanwhile the service life of the absorption balls is prolonged.
本发明公开了一种高温气冷堆用中子吸收球及其制备方法，属于球床式高温气冷堆吸收球停堆系统技术领域。其以石墨球为内核，碳化硼为外包覆层，碳化硼层的厚度为0.25～0.50mm。本发明通过在石墨球表面采用碳化硼(B4C)作为包覆层，可以增大中子吸收面积，使得中子吸收效率最高达到96％，同时可以减少吸收球的数量，降低单个吸收球的重量，既减少了吸收球贮存罐的尺寸大小，简化了反应堆系统布置方案，同时也便于在反应堆启动时将吸收球吹出堆芯区域，同时，碳化硼(B4C)陶瓷材料具有优异的耐磨损性能，有效避免了吸收球相互摩擦产生石墨粉尘的现象，同时提高了吸收球的使用寿命。
Neutron absorption ball for high-temperature gas cooled reactor and preparation method of neutron absorption ball
The invention discloses a neutron absorption ball for a high-temperature gas cooled reactor and a preparation method of the neutron absorption ball, and belongs to the technical field of absorption ball shutdown systems of pebble-bed high-temperature gas cooled reactors. Graphite nodules are used as an inner core, boron carbide is used as an outer coating layer, and the thickness of the boron carbide layer is 0.25-0.50 mm. Boron carbide (B4C) is adopted as a coating layer on the surface of the graphite ball, so that the neutron absorption area can be increased, the neutron absorption efficiency can reach 96% at most, meanwhile, the number of the absorption balls can be reduced, the weight of a single absorption ball can be reduced, the size of an absorption ball storage tank is reduced, the arrangement scheme of a reactor system is simplified, and the production cost is reduced. Meanwhile, the absorption balls can be conveniently blown out of a reactor core area when a reactor is started, meanwhile, the boron carbide (B4C) ceramic material has excellent abrasion resistance, the phenomenon that graphite dust is generated due to mutual friction of the absorption balls is effectively avoided, and meanwhile the service life of the absorption balls is prolonged.
本发明公开了一种高温气冷堆用中子吸收球及其制备方法，属于球床式高温气冷堆吸收球停堆系统技术领域。其以石墨球为内核，碳化硼为外包覆层，碳化硼层的厚度为0.25～0.50mm。本发明通过在石墨球表面采用碳化硼(B4C)作为包覆层，可以增大中子吸收面积，使得中子吸收效率最高达到96％，同时可以减少吸收球的数量，降低单个吸收球的重量，既减少了吸收球贮存罐的尺寸大小，简化了反应堆系统布置方案，同时也便于在反应堆启动时将吸收球吹出堆芯区域，同时，碳化硼(B4C)陶瓷材料具有优异的耐磨损性能，有效避免了吸收球相互摩擦产生石墨粉尘的现象，同时提高了吸收球的使用寿命。
Neutron absorption ball for high-temperature gas cooled reactor and preparation method of neutron absorption ball
一种高温气冷堆用中子吸收球及其制备方法
ZHOU QIN (Autor:in) / WANG JINGXIN (Autor:in) / LYU HUAQUAN (Autor:in) / LUO YONG (Autor:in) / LIU WEI (Autor:in) / LIU SONGYANG (Autor:in) / LI XUELIN (Autor:in) / WANG LANG (Autor:in) / GUO RUONAN (Autor:in) / LIU PING (Autor:in)
24.09.2024
Patent
Elektronische Ressource
Chinesisch
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