王海涛,梅雪松,王海军,顾红芳

• 1:西安交通大学高端制造装备协同创新中心
• 2:西安交通大学机械工程学院
• 3:西安交通大学动力工程多相流国家重点实验室

摘要(Abstract)：

水资源匮乏制约我国发展内陆核电,借鉴火电机组,采用直接空冷是最好的选择。为了保证其排汽管道设计的合理性,结合目前我国百万千瓦级核电机组堆型特点,提出了2种可用于不同堆型的直接空冷排汽管道型式,并采用计算流体动力学(CFD)模拟方法对其水力特性进行了分析。结果表明:管系流量分配以上部T型三通为中心两侧成对称分布,中间2支管分配的流量最多;各支管流量分配均匀,流量偏差控制在5%左右;各工况下排汽管道系统压降随机组背压变化明显,背压越低压降越大;在相同背压工况下,管系总压降随蒸汽流量增大而增大,系统总压降排序为EPR1000(四排汽)>AP1000>EPR1000(六排汽)>CPR1000。该结果可为后续工程的可行性研究提供技术支撑。

关键词(KeyWords)： 核电机组;直接空冷;排汽管道;水力特性;管型;压降;背压;计算流体动力学

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(11675128)~~

作者(Author): 王海涛,梅雪松,王海军,顾红芳

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