中国电力2018，Vol.51Issue(4)：89-95,7.DOI:10.11930/j.issn.1004-9649.201612028
亚临界600 MW汽轮机通流改造技术方案研究与应用
Research and Application of Flow Path Retrofit Upgrade of the Subcritical 600 MW Turbine in Ninghai Power Plant
摘要
Abstract
In this paper, the research and application of flow path retrofit upgrade of the subcritical 600MW turbine in Ninghai Power Plant are introduced. Firstly, the performance and the existing problems of the subcritical 600 MW unit are analyzed, and the output status of the turbine before the upgrade is determined. Secondly, the achievements of the 300 MW steam turbine flow path retrofit upgrade projects in China and the guaranteed performance data from the manufacturers are studied; the thermal checking caluclation is conducted to get the expected performance index of the subcritical 600 MW steam turbine after the upgrade. Finally, the optimized design schemes, such as the cold end optimization and the final stage blade selection, are proposed after considering the upgrade schemes provided by the manufacturer to determinethe final scheme. With the flow path retrofit, the specific heat consumptionof the steam turbine is reduced by 332 kJ/(kW·h), and the economic benefit is remarkable.关键词
600MW/汽轮机/通流改造/热耗率/末级叶片Key words
600 MW/steam turbine/flow path retrofit/heat rate/exhaust stage blade分类
信息技术与安全科学引用本文复制引用
张磊,张俊杰,冯立国,乔加飞,徐亚涛..亚临界600 MW汽轮机通流改造技术方案研究与应用[J].中国电力,2018,51(4):89-95,7.基金项目
国华电力公司科技项目(国华600 MW亚临界汽轮机组节能综合升级研究).This work is supported by Guohua Electric Power Science Project(Research and Application of Flow Path Retrofit Solution of Subcritical 600 MW Turbine of Guohua Company). （国华600 MW亚临界汽轮机组节能综合升级研究）
