超临界二氧化碳透平气缸设计方案研究  

Study on Design Schemes for the Cylinder of Supercritical Carbon Dioxide Turbines

作　　者：倪剑[1] 钱勇[1] 周勇[1] 覃小文[1] 刘海杰 廖翔 Ni Jian;Qian Yong;Zhou Yong;Qin Xiaowen;Liu Haijie;Liao Xiang(Dongfang Steam Turbine Co., Ltd., Deyang 618000, Sichuan Province, China)

机构地区：[1]东方汽轮机有限公司

出　　处：《发电设备》2020年第1期32-36,共5页Power Equipment

摘　　要：为对高参数超临界二氧化碳透平气缸进行优化设计,通过改进气缸结构和调整气缸材料及密封形式,获得3种气缸设计方案。借助有限元软件分析不同气缸设计方案在高参数超临界二氧化碳环境下的安全性,再结合成本分析,最终排除梳齿气封以及上下半气缸设计方案,选择安全、低成本的干气密封筒形缸设计方案。To optimize the design of high-parameter supercritical carbon dioxide turbine cylinders,3 design schemes were proposed by improving the structure,replacing the material and adjusting the sealing form for the cylinder.The safety of above design schemes was analyzed by means of finite element method in high-parameter supercritical carbon dioxide environments.Combined with cost analysis,the two schemes respectively with comb-tooth seal and upper and lower half-cylinder were not recommended,while the safety and low-cost scheme with dry gas seal in cylindrical form was chosen.

关 键 词：超临界二氧化碳 气缸 干气密封 有限元分析 

分 类 号：TK14[动力工程及工程热物理—热能工程]