汽轮机技术V01.5l No.2 2009年4月TURBINE TECHNOLOGY Apr.2009 600MW超超临界汽轮机高压主汽调节联合 阀内部流场的数值模拟分析 董建华1,刘 (1哈尔滨汽轮机厂有限责任公司,哈尔滨150046;2大连理工大学,大连116000)摘要:采用非结构化四面体网格,对某600MW超超临界汽轮机组高压主汽调节联合阀的额定工况进行了数值模 拟。针对3种不同结构的模型分别进行了计算,分析研究了阀门内部流场的流动特性,以及在主汽阀内加置挡板 和滤网对内部流场和阀门损失的影响。 关键词:主汽调节联合阀;流动特性;数值模拟 分类号:TK262 文献标识码:A 文章编号:1001-5884(2009)02-0107-04 Numerical Simulations FlowField inside High Pressure Combined Valve a600MWUltra Supercritical Steam Turbine DONG Jian.hual.LIU Yan2 HarbinTurbine Co.Ltd,Harbin 15004J6,China;2 Dalian University ofTechnology,Dalian 116000,China) Abstract:Unstructured tetrahedral mesh髓眦used flowfield inside hish pressure combined valves a(500MWultra supercritical steam turbine under nominalcondition.Three physical modes differentstructures considered.Thecharacteristics flowfield inside valves afilterscl傥n placed mainsteam valve alsodiscussed paper.Key words:combined valve;flow characteristics;numerical simulation 0