转子流量计流量公式推导方法的商榷

摘要

The object of study was not made clear in the derivation process of flow formula of rotameters in most chemical textbooks,and the differential pressure and buoyant forces appeared in these processes simultaneously,while they got the right answer with these confused processes.Two reasonable processes to get the right flow formula of rotameters were introduced in this paper,based on the differential pressure with float and fluid around as study object,and buoyant force with float as study object,respectively.%大多化工教材在推导转子流量计流量公式时没有将研究对象分析清楚,并且在分析受力时同时引入了压差力和浮力两个性质相似的力,阴差阳错地得出了正确的流量公式.文章分别以转子及转子周围的流体作为整体研究对象,从压差力的角度和以转子为研究对象,从浮力的角度出发得出了正确的结论.