基于CFD的蒸汽调节阀流量特性研究之一  

Investigate Flux Character to Steam Adjustive Valve Through CFD Method

作　　者：高怡秋[1] 周振东[1] 张李伟[1] 

机构地区：[1]中国船舶重工集团公司第704研究所,上海200031

出　　处：《汽轮机技术》2011年第5期328-330,共3页Turbine Technology

摘　　要：在以往调节阀的设计中,无论是理论计算还是试验研究,都无法准确掌握汽轮机进汽调节阀的调节特性以及流场细节,而数值模拟手段则可填补这一空缺。随着计算机水平以及CFD技术的不断发展完善,利用数值模拟方法来辅助设计成为了当今工程设计的趋势。结合调节阀结构尺寸,阀后喷嘴流量的计算,通过理论公式的推导,与CFD数值模拟相结合,得到了调节阀临界流量、彭台门系数的函数关系,从而得出阀门的流量特性。提供了一种新的阀门设计思路,得到了具有较高精度的阀门特性曲线,结果对今后汽轮机进汽调节阀的研究具有一定的指导借鉴意义。For former design of adjustive valve, no matter theoretical or experimental research all could not master character and fluid domain of steam intake adjustive valve in detail, but now numerical simulation method can accomplish this intention. As the development of computer standard and CFD （ Computer Fluid Dynamics） technology , now it has been a trend to use CFD to be assistant design method. This paper get the function relation between critical flux and β coefficient through illation of theory and combination of CFD method based on valve＇ s size and downflow nozzle＇ s flux. It support a new method to design valve that can get a more accurate curve and its result can be reference of future research.

关 键 词：汽轮机 蒸汽调节阀 调节特性 临界流量 

分 类 号：TK263.3[动力工程及工程热物理—动力机械及工程]