1000MW核电整锻汽轮机低压转子的研制 - 王宝忠.pdf

1000MW 核电整锻汽轮机低压转子的研制 王宝忠，金嘉瑜，高建军，曹志远 中国第一重型机械股份公司 摘 要：中国的核电能否高速发展，锻件是关键。在核电锻件中，整锻低压转子的制造难度是最大的。 中国一重结合“十一五”国家科技支撑计划以及国家科技重大专项两大重点课题的研制，通过原始创新，对 600T 级钢锭模的设计、制造；中间包、塞棒、导流管、水口等的结构和材料；钢锭的凝固模拟；水、冒口 及心部解剖分析；锻造的中心压实；热处理的防止开裂及细化晶粒等进行了一系列研究。在研制了 EPR 接 管段及 5500mm 支撑辊的基础上，研制出了百万千瓦核电常规岛半转速汽轮机低压转子。 关键词：整锻低压转子；600T 级钢锭；新型中间包 The Research of Monoblock LP Rotor for 1000MW Nuclear Power Plant Wang Baozhong, Jin Jiayu, Gao Jianjun, Cao Zhiyuan China First Heavy Industries Abstract: The forging is the key-point which determines whether the nuclear power plant of China can be developing at a high-speed. The manufacture of monoblock LP rotor is the hardest of the nuclear forgings. CFHI combine the development of the National Key Technology RD Program in the 11th Five year Plan of China and the Important National Science Technology Specific Projects, through the original innovations, has got a series of studies on the design manufacture of 600T ingot mold, the structure and material of pony ladle, stopper rod, honeycomb duct, outlet etc. , the simulation of ingot solidification, the dissecting of bottom, top and core of ingot, the compaction of steel-ingot core, prevent cracking and grain refinement during the heat treatment etc. CFHI also has developed 1000MW nuclear half-speed low-pressure steam turbine rotor for conventional island base on the research of the EPR Upper Shell and the 5500mm backup roller. Keywords: monoblock LP rotor, 600T ingot; new pony ladle 1.市场需求 核能以其清洁、安全和可大规模应用的优势，受到越来越多国家的重视。加快核能和平利用步伐，已 成为许多国家的共同愿望和必然选择。加快发展核电，提高核电占能源供给总量的比重，已经成为中国能 源发展的战略重点。目前全世界有 439 核电机组（其中欧洲 160 台；北美 123 台；亚洲 111 台；南美 4 台； 非洲 2 台）在运营 。预计到 2050 年将建成 1400 台核电站，平均每年新建 23 台以上核电站 。核电的高 速发展，为中国锻件制造企业的可