中国农村水利水电
中國農村水利水電
중국농촌수이수전
CHINA RURAL WATER AND HYDROPOWER
2014年
12期
176-179
,共4页
灯泡贯流式水轮机%转轮%模型试验%轴向水推力%驱动力%转速因数
燈泡貫流式水輪機%轉輪%模型試驗%軸嚮水推力%驅動力%轉速因數
등포관류식수륜궤%전륜%모형시험%축향수추력%구동력%전속인수
bulb turbine%runner%model test%axial thrust%driving force%speed factor
为了研究灯泡贯流式水轮机的轴向水推力问题，以某灯泡贯流式水轮机模型为研究对象，进行了该模型的轴向水推力试验。提出了比值 Z（轴向水推力／水轮机驱动力）这一概念，研究了其随转速因数、叶片角度、导叶开度的变化规律。研究结果表明：该灯泡贯流式水轮机模型比值 Z在某一区间范围，比值 Z随转速因数的增大而增大、随导叶开度的增大而增大、随叶片角度的增大而减小。
為瞭研究燈泡貫流式水輪機的軸嚮水推力問題，以某燈泡貫流式水輪機模型為研究對象，進行瞭該模型的軸嚮水推力試驗。提齣瞭比值 Z（軸嚮水推力／水輪機驅動力）這一概唸，研究瞭其隨轉速因數、葉片角度、導葉開度的變化規律。研究結果錶明：該燈泡貫流式水輪機模型比值 Z在某一區間範圍，比值 Z隨轉速因數的增大而增大、隨導葉開度的增大而增大、隨葉片角度的增大而減小。
위료연구등포관류식수륜궤적축향수추력문제，이모등포관류식수륜궤모형위연구대상，진행료해모형적축향수추력시험。제출료비치 Z（축향수추력／수륜궤구동력）저일개념，연구료기수전속인수、협편각도、도협개도적변화규률。연구결과표명：해등포관류식수륜궤모형비치 Z재모일구간범위，비치 Z수전속인수적증대이증대、수도협개도적증대이증대、수협편각도적증대이감소。
In order to do research on the axial thrust of bulb turbines ,a bulb turbine model taken as the research object ,hydraulic axial thrust model test is carried out on test stand for hydraulic machinery .The concept of the ratio Z(axial thrust /driving force)is pro‐posed and the variety regulation of ratio Z with the speed factor ,blade angle and guide vane opening are obtained from the study .The research results indicate that the ratio Z is expressed in ranges in this bulb turbine model and the ratio Z become larger along with the increase in the speed factor and guide vane opening ,while smaller along with the increase in blade angle .
