新型全封闭液化石油气泵

摘要

应用永磁传动原理和绝对密封技术设计出新型全封闭液化石油气泵，彻底解决了常规泵的泄漏及密封件更换频繁等问题。简述了泵的工作原理、传动与密封原理；对径向力的平衡、滑片安放角的确定、磁传动安全等设计问题做了讨论。泵的进出口呈直角，入口在上，出口在侧面，封油区偏置45°布置，可达到径向力的部分平衡，减轻滑动轴承的径向载荷；滑片后倾安装5.7～11.3°可减小摩擦阻力；取消了易损密封件，实现了全封闭无泄漏，从而避免介质气化。新型泵除灌装液化石油气外，还可输送液态烃、液氨、丙烯等挥发性液体及石油产品。%A new magnetic driing sliding vane pump ,used for handling toxic explosive corrosive and costly liquids ,is desing ed by using the technology of magnetic driving and whole sealing The operation gprinciple and design features of this pump are described The new pump solves the problems of pump leakage satisfactorily