摘要：介绍了利用科里奥利原理测量固体物料流量的方法,以及实现这个原理的典型测量装置———科氏质量流量计。为了使测量达到较高精度,必须解决两个关键问题:力矩的精确测量和转速恒定。文中对科式质量流量计和其他测量系统(如冲板系统、溜槽系统)进行比较,指出其特点为测量精度不受物料特性(颗粒度、容重)影响,并且可以锁住逆向空气流,不用添加锁风装置。利用科氏质量流量计测量固体散料、粉体只要物料不凝聚和粘着,量程范围可达1～150t/h,测量精度优于1%。

关键词：科里奥利式质量流量计;散粒料;流量测量;

Abstract: The method of flow rate measurement of granules with Coriolisprinciple is introduced and the Coriolis mass flowmeter is a typical mea-surement device based on this principle. Two key points must be solved inorder to achieve higher measuring precision, such as accurate measurement of torque and the constant speed. Compared with other measuringsystems, the Coriolis system has its characteristics as follows: the measur-ing precision doesn't be affected by materials' characteristics, and it canbe prevented retrorse air with no additional device. The Coriolis systemcan measure range from 1 t/h to 150 t/h, its precision can excel 1% aslong as the materials are not too moisture.

Keywords: Coriolis mass flowmeter, accurate measure with torque, pro-cess for constant speed