水力发电
水力髮電
수력발전
WATER POWER
2001年
5期
43-47
,共5页
水轮机%模型验收试验%三峡工程
水輪機%模型驗收試驗%三峽工程
수륜궤%모형험수시험%삼협공정
三峡电站水轮机是运行水头变幅最大的混流式水轮机之一，其外形尺寸和重量亦是当前混流式水轮机之最。三峡机组的运行稳定性始终是设计、科研、制造和使用部门关注的首要课题。目击验收试验的结果表明，综合能量特性和空化特性基本上满足了合同要求，其模型最优效率为94.54%(保证值为94.51%)；额定效率为89.53 %(保证值为87.85%)；无弃水期加权平均效率为92.29%(保证值为92.16%)。由于各种原因，稳定性指标未能全面达到合同保证值。
三峽電站水輪機是運行水頭變幅最大的混流式水輪機之一，其外形呎吋和重量亦是噹前混流式水輪機之最。三峽機組的運行穩定性始終是設計、科研、製造和使用部門關註的首要課題。目擊驗收試驗的結果錶明，綜閤能量特性和空化特性基本上滿足瞭閤同要求，其模型最優效率為94.54%(保證值為94.51%)；額定效率為89.53 %(保證值為87.85%)；無棄水期加權平均效率為92.29%(保證值為92.16%)。由于各種原因，穩定性指標未能全麵達到閤同保證值。
삼협전참수륜궤시운행수두변폭최대적혼류식수륜궤지일，기외형척촌화중량역시당전혼류식수륜궤지최。삼협궤조적운행은정성시종시설계、과연、제조화사용부문관주적수요과제。목격험수시험적결과표명，종합능량특성화공화특성기본상만족료합동요구，기모형최우효솔위94.54%(보증치위94.51%)；액정효솔위89.53 %(보증치위87.85%)；무기수기가권평균효솔위92.29%(보증치위92.16%)。유우각충원인，은정성지표미능전면체도합동보증치。
The turbine for the Three Gorges Project is one of the mixed-flow turbines with great changes of operation water head. Its appearance dimensions and weight also rank the first in the current mixed-flow turbines. The operation stability of the generating units for the Three Gorges Project always is the key focused by the designer, scientific research institute, manufacturer and user. The results of visual acceptance tests showed that its comprehensive energy performances and cavitation characteristics basically meet the requirements of the Contract. The optimum efficiency of its model is 94.54% (guaranteed value is 94.51%), the rated efficiency 89.53% (guaranteed value 87.85%), and the weighted average efficiency without surplus water season 92.29% (guaranteed value 92.16%). Because of various reasons, the stability indexes could not meet the guaranteed value required by the Contract so that the manufacturer is required to optimize the design of sluice taper and make other tests.
