红水河
紅水河
홍수하
HONGSHUI RIVER
2014年
1期
74-75,79
,共3页
水轮机%调速器%下桥水电厂
水輪機%調速器%下橋水電廠
수륜궤%조속기%하교수전엄
turbine%speed governor%Xiaqiao hydropower station
导叶两段关闭是水轮机的一种保护措施，能够防止过流部件在紧急停机时，因机组导叶关闭过快而引起的水锤压力升高导致的破坏，防止快速停机时造成尾水真空度过大而引起水流反冲的抬机现象，文章通过成功对下桥水电厂水轮机两段关闭的技术改造，阐述了两段关闭新技术在水轮机的应用。
導葉兩段關閉是水輪機的一種保護措施，能夠防止過流部件在緊急停機時，因機組導葉關閉過快而引起的水錘壓力升高導緻的破壞，防止快速停機時造成尾水真空度過大而引起水流反遲的抬機現象，文章通過成功對下橋水電廠水輪機兩段關閉的技術改造，闡述瞭兩段關閉新技術在水輪機的應用。
도협량단관폐시수륜궤적일충보호조시，능구방지과류부건재긴급정궤시，인궤조도협관폐과쾌이인기적수추압력승고도치적파배，방지쾌속정궤시조성미수진공도과대이인기수류반충적태궤현상，문장통과성공대하교수전엄수륜궤량단관폐적기술개조，천술료량단관폐신기술재수륜궤적응용。
Two-section closing technology of wicket gate, as a protection measure for turbine, can prevent the turbine damage due to the raising water hammer pressure caused by fast closing of wicket gate when emergency stop of flow passing components and can prevent the lifting of turbine due to water backflushing caused by excessive vacuum de-gree of tail water when rapid shutdown. The paper discusses the application of new two-section closing technology in turbine through the successful innovation of the turbine for Xiaqiao hydropower station.
