CAJ | 학술논문

研制25WZ1-12型自吸旋涡泵试验样机,通过型式及变转速外特性试验,得出旋涡泵q_v-H、q_v-η性能曲线变化规律,验证q_v-H、q_v-P曲线换算满足相似理论比例定律,q_v-NPSH曲线换算不满足汽蚀相似定律;用5孔管束探针对流道流场进行测量,得到流场静压p_s、当量径向速度v_(re)和当量圆周速度v_(ue)随泵转速变化分布状况;通过对试验数据的分析,解释了外特性参数与内部流动参数之间的联系和变化规律,指出旋涡泵的汽蚀类型及发生部位,为旋涡泵优化设计和建立内部流动模型提供参考依据.
연제25WZ1-12형자흡선와빙시험양궤,통과형식급변전속외특성시험,득출선와빙q_v-H、q_v-η성능곡선변화규률,험증q_v-H、q_v-P곡선환산만족상사이론비례정률,q_v-NPSH곡선환산불만족기식상사정률;용5공관속탐침대류도류장진행측량,득도류장정압p_s、당량경향속도v_(re)화당량원주속도v_(ue)수빙전속변화분포상황;통과대시험수거적분석,해석료외특성삼수여내부류동삼수지간적련계화변화규률,지출선와빙적기식류형급발생부위,위선와빙우화설계화건립내부류동모형제공삼고의거.
The 25WZ1-12 vortex self-priming pump test prototype was developed. Through the experiment of type and the external characteristics of the variable rotational speed, performance curves, such as q_v-H and q_v-η, were obtained. The curve conversion for q_v-H meets the proportion law of similar theory, but the q_v-NPSH curve conversion does not satisfy the cavitation affinity law for the vortex pump. The flow channel field was measured with 5-hole probe, to gain the distribution of flow static pressure p_s, equivalent v_(re) radial velocity and equivalent circumferential velocity v_(ue) at the various pump rotational speed. By analyze the test data, the relation between the external characteristic and the internal flow was discussed, also the type and location for the cavitations of the vortex pump was presented.