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本文叙述原型混流式水轮机尾水管内水流压力脉动及采用强迫补气方式的试验方法,并根据试验结果,对尾水管内水流压力脉动幅值与导叶开度(或出力)、补气量的关系进行初步分析,对确定最优补气量进行初步探讨。
This paper describes the flow pressure pulsation in the draft tube of the prototype Francis turbine and the test method of forced air supply. Based on the test results, the relationship between the pressure pulsation amplitude in the draft tube and the opening (or output) To conduct a preliminary analysis, to determine the optimal amount of gas to conduct a preliminary discussion.