600 MW亚临界汽轮机通流改造综述  

Review of the Flow Path Retrofit of 600MW Subcritical Steam Turbine

作　　者：徐星 谭锐 XU Xing;TAN Rui

机构地区：[1]国电科学技术研究院

出　　处：《电站系统工程》2018年第6期45-48,共4页Power System Engineering

摘　　要：阐述目前国内600MW亚临界汽轮机存在的主要问题和影响因素,介绍国内亚临界汽轮机通流改造发展历程,从低压缸结构、进排汽、汽封技术、变负荷经济性方面论述600MW亚临界汽轮机通流改造运用的新技术及其特点,分析比较通流改造主要厂家的技术方案和改造效果,提出在设计边界条件、保证热耗率选取、改造后运行方式等方面应注意的问题,为今后600 MW亚临界汽轮机通流改造提供参考。The main problems and influence factors about the domestic 600MW subcritical steam turbine at present is analyzed,the process of flow path retrofit of subcritical steam turbine is introduced,the latest technology and characteristics of the current flow reconstruction of subcritical steam turbine in aspect of inlet and outlet steam,main body structure,sealing technology,low and medium load optimization is discussed,it introduces the features of flow and transformation of main manufacturers and the effect,and also put forward some suggestions to the existing problems about the the designing boundary conditions and the selection of heat consumption rate,in order to provide references for the flow path retrofit of 600MW subcritical steam turbines and the energy-saving work in the power generation.

关 键 词：600MW 亚临界 汽轮机 通流改造 

分 类 号：TK267[动力工程及工程热物理—动力机械及工程]