水利水电科技进展2012，Vol.32Issue(6)：87-90,4.DOI:10.3880/j.issn.1006-7647.2012.06.022
超低水头竖井贯流式水轮机模型试验
Model test of tubular turbine under extremely low head
摘要
Abstract
To study the energy characteristics and cavitation characteristics of a tubular turbine with a vertical shaft, model tests for a tubular turbine under an extremely low head of 2. 10 m were carried out. Based on a multi-function hydro-mechanical experimental bench in Hohai University, the water head, discharge, and torque of the GD-WS-35 tubular turbine were respectively tested with a pressure difference sensor, electromagnetic flow meter, and torque meter, under different guide vane openings and different blade setting angles. The comprehensive characteristic curves of the model tubular turbine were drawn. The energy characteristic test shows that when the blade' s setting angle is 23°, the guide vane opening is 65°, and the rated water head is 2. 10m, the tubular turbine under extremely low head has good energy characteristics; the model turbine's efficiency reaches 83.34%, discharge is 0.398 mVs, and the output power is 6.838 kW. Conversion to the antitype turbine, the efficiency is 85. 14% , discharge is 9. 96 mVs, and the output power is 174. 7 kW. The cavitation test shows that the turbine' s cavitation performance is good when the blade setting angle is 23° and the guide vane opening is 65°.关键词
竖井贯流式水轮机/能量特性/空化特性/模型试验Key words
vertical tubular turbine/energy characteristics/cavitation characteristics/model test分类
建筑与水利引用本文复制引用
杨春霞,郑源,李玲玉,刘梦轩..超低水头竖井贯流式水轮机模型试验[J].水利水电科技进展,2012,32(6):87-90,4.基金项目
国家海洋局海洋可再生能源专项(GHME2011CX02) （GHME2011CX02）
