一种新颖的磁浮轴承叶轮泵

研制了一种新颖的离心泵，泵的叶轮上镶嵌磁钢，泵壳上装有线圈，通入电流便会产生旋转磁场，驱动叶轮旋转，打破了现有叶轮泵由电机通过联轴器驱动的老传统；泵内没有机械轴承，转子与定子之间的吸力，由两对稀土磁环组成的磁浮轴承抵消，定子与转子之间因而达到零摩擦；转子浸泡在介质中旋转，所有与流体接触的表面均由耐腐蚀材料包层，因此泵内没有任何形式的密封元件，叶轮叶片设计采用三元流线型方法，消除流道内的不规则流动。这种新颖的叶轮泵适合于长期无故障无泄漏连续运转，展现广阔的应用前景。

New Concept of Impeller Pumps with Magnetic Bearings

A novel impeller pump has been developed.The magnets were inlaid ontothe impeller,the coil was winded around the pump housing.As the current is introducedinto the coil,the impeller rotates to pump the fluid.Two magnetic bearings weredevised to replace the mechanical bearing,thus the rotor and stator has no contact,no friction and no wear.All the fluid contacted surfaces with stainless coatingswere immersed in the liquid,there is no sealing in the pump.The impeller vane wasdesigned according to a three-dimensional analytical method.This novel impellerpump promises to be able to operate continuously,durably and reliably.