1000MW单轴多缸汽轮发电机组的开发

为优化化石燃料电厂的建设投资，在保证高可靠性和高效率的同时，设备的布置应更加合理。因此１０００ＭＷ化石燃料汽轮发电机组的布置趋向于从双轴布置改为单轴置。本文介绍了日立公司开发的１０００ＭＷ单轴多缸汽轮发电机组部件技术的情况，目前，末级叶片分别为１０１６ｍｍ及１０９２．２ｍｍ的单轴多缸４排汽汽轮机已分别应用到６０Ｈｚ和５０Ｈｚ发电机上。

Development of Tandem-Compound 1000MW Steam Turbine and Generator

Investment in the construction of fossil-thermal power plants has had to be optimized. This has meant rationalizing equipment while at the same time guaranteeing high reliability and efficiency. This rationalization has produced a clear tendency to change from cross-compound to tandem-compound 1 000MW fossil steam turbines and generators. Hitachi has already developed all the necessary component technologies for tandem-compound 1 000MW steam turbines and generators to meet the demands of the electrical power market. A tandem-compound four-flow steam turbine with 40-inch last stage blades and a tandem-compound four-flow steam turbine with 43-inch last stage blades can be applied for 60Hi use and 50Hi use, respectively. This paper outlines the technological developments of components for tandem-compound 1 000MW steam turbine and generators