一、引言在以往的应用和试验中得出旋流泵具有以下优点: a.性能稳定,压力变化范围窄; b.无堵塞、耐磨蚀、运行可靠; c.泵的性能对浓度、固体粒径大小、空气含量的变化不敏感; d.流量受固体颗粒大小的限制小。因此特别适用于输送含有固体的液体,以及特别脏、粘和浓的液体,在各行业得到越来越广泛的应用,然而目前对多相污水流 I. Introduction In the past applications and tests have been concluded that the cyclone pump has the following advantages: a. Stable performance, narrow pressure changes; b. Non-clogging, abrasion resistance, reliable operation; c. Pump performance of the concentration, Particle size, air content is not sensitive to changes; d flow rate by the size of solid particles small. Therefore, it is especially suitable for the transportation of solids-containing liquids, as well as particularly dirty, viscous and concentrated liquids, which are gaining more and more widespread applications in various industries. However,