Research And Practice Of 600MW Subcritical Steam Turbine Inter Generation Upgrading. (October 2020)

• Record Type: Journal Article
• Authors: Shengxiang, Jin; Liuhu, Wang; Jinsong, Zhang; Qi, Zhang; Qianyu, li; Wei, Bai; Chuan, He; Yong, Zhou; Daming, li; Yu, Xiao
• Is Part Of: Journal of physics. Volume 1654(2020)
• Publication Date: 2020-10
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1654/1/012016
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: This paper introduces the upgrading technical scheme and application of subcritical 600 MW steam turbine. Firstly, the performance and existing problems of 600 MW subcritical unit before modification are analyzed, and the performance and output of steam turbine before modification are determined. Secondly, the performance of 300MW subcritical steam turbine retrofit and the performance guarantee value of each retrofit manufacturer are studied, and the thermal calculation is carried out. At the same time, the performance index of subcritical 600 MW steam turbine after upgrading is analyzed. Finally, according to the channel reconstruction scheme provided by the manufacturer, the optimization design of cold end optimization, last stage blade selection and base foundation reconstruction is proposed.