折流式旋转床有效功耗的初步研究

Preliminary studies on the effective power consumption of rotating zigzag bed

折流式旋转床是一种新型的同心圈式超重力设备,电机功率消耗是折流式旋转床设计时需要考虑的重要因素。本文对折流式旋转床的有效功耗进行了初步的实验研究,并提出了一种新的有效功耗计算方法,为旋转设备功耗研究和折流式旋转床工业应用提供了一定基础。折流式旋转床有效功耗可以分成两部分,即分散液体功耗和加速液体功耗。通过理论分析,得到了折流式旋转床有效功耗的计算模型。实验以水为介质,在不同液量和转速下测得有效功耗。结果表明,转速一定时,有效功耗随着液量的增加近似呈线性增加,且转速越大,有效功耗随液量增加越快。通过对实验数据的回归,得到单个同心圈转子有效功耗的计算模型,实验值与回归计算值相对偏差基本在20%以内。通过对包含4个同心圈转子的折流式旋转床有效功耗的验证结果可知,4个动圈有效功耗计算值的总和比实验测量值高20%左右,对折流式旋转床的工程放大有一定意义。

Rotating zigzag bed（RZB） is a novel kind of HIGEE equipment with concentric rings. Motor power consumption is an important factor to be considered when researchers design RZB. In this paper,experimental studies on the effective power consumption of RZB were preliminarily carried out. A new calculation method was proposed,which provided basis for studies on power consumption of rotating equipments and industrial applications of RZB. The effective power consumption of RZB could be divided into two parts：power consumption to disperse liquid and to accelerate liquid. The calculation model of the effective power consumption of RZB was achieved by theoretical analysis. Using water as test system,the effective power consumption was experimentally measured. According to the experimental data,the effective power consumption approximately linearly increased with liquid flowrate when rotating speed was constant. The higher rotating speed was,the more rapidly effective power consumption increased. Based on the experimental data, the model of effective power consumption with liquid flowrate and rotating speed for rotor with single concentric ring could be achieved. The relative deviation between the experimental data and the calculated values was within 20%. The calculated effective power consumption of RZB with four concentric rings is about 20% higher than the measured values,which is of certain significance for scale-up of RZB.