摘要
主要介绍了上海汽轮机厂超临界600MW等级汽轮机高中压整体内缸技术方案。新型内缸整合了高中压模块的主要部套,改善了高、中压平衡活塞结构,改变了喷嘴连接形式,优化了蒸汽室型线,并通过CAE分析严格考核了恶劣工作环境下内缸的强度、刚度、密封及蠕变特性。实践表明,新的结构使机组高中压模块得到了精简,缩短了安装检修工期,降低了工艺成本,极大地提高了机组运行的经济性。
The design scheme of the integral HP-IP inner casing in supercritical 600 MW turbine developed by Shanghai Turbine Plant is introduced. Some advanced technologies are adopted, such as integration of HP and IP main components, modification of structural design of HP and IP balance piston, change of nozzle connecting, optimization of steam chest profile. The strength, stiffness, seal characteristics and creep properties under severe working conditions are examined by means of CAE analysis. It is indicated practically that the new integral structure can simplify the HP-IP model, shorten the time of installation and maintenance, decrease the cost, and thus improve the operation economy greatly.
出处
《热力透平》
2016年第3期196-199,共4页
Thermal Turbine
关键词
超临界600MW汽轮机
高中压整体内缸
强度
蠕变
supercritical 600 MW steam turbine
integral HP-IP inner casing
strength
creep strain
