汽轮机旁路系统容量分析及电动与液动旁路的比较

THE ANALYSIS OF STEAM TURBINE BY-PASS CAPACITY AND THE COMPARISON BETWEEN ELECTRICAL DRIVEN DEVICES AND RYDRAULIC ONES

目前大容量的中间再热单元机组绝大部分均装有旁路装置系统。实践表明 ,一套完善性好的旁路系统 ,可经受电厂的启停、甩负荷等多种考验。高压Ⅰ级及低压Ⅱ级旁路系统已成为许多国家的标准模式。对设置旁路的目的、阀门启闭时间的要求、选用型式。

Presented in this paper are the purpose of by-pass system,requirements for opening and closing stop time of valve and type seleccion,determination of reasonable capacity of by-pass system,and analysis of performance and characteristic of electrical valve driver and hydcaulic ones.