基于CFD的蒸汽调节阀流量特性研究之二  

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6期422-424,共3页Turbine Technology

摘　　要：汽轮机蒸汽调节阀采用阀后联通的方式可有效减小在低负荷运行、小流量调节时叶片的汽流弯应力,提高机组运行的安全可靠性。对阀后联通结构的调节阀进行了理论推导和计算,结合CFD数值模拟手段得到了阀门的流量特性。运用倒推法对阀门型线做出了改进,得到新的型线并进行了验算,结果表明阀门流量特性曲线光滑、平稳,调节性能良好。Steam turbine adjustive valve by the structure of connectivity can reduce air bending stress effectively when in low load or low flux condition, and then raise the reliability of equipment. This paper deduct and calculate the flux character of valve combined with CFD method based on this structure. Deduce backward to improve line of valve and validate it, the result indicate that flux curve is smooth and adjustive character is good.

关 键 词：汽轮机 蒸汽调节阀 联通阀 流量特性 CFD 

分 类 号：TK263.3[动力工程及工程热物理—动力机械及工程]