离心泵叶轮两个相邻叶片形成的叶间流道的面积对泵的性能有重要影响,为减小水力损失,叶间流道出口面积和进口面积之比应小于1.3.本文给出不同叶片的几何参数时该比值的设计示例,从而得出各几何参数对该比值的影响趋势.

论述国内双吸泵产品的演变过程,提出传统产品存在的问题,介绍国外同类产品的特点和新开发系列双吸泵的有关技术问题.

泵输送的物料日益增多,为了实现有效输送,在某些情况下需要加设切割装置.本文对泵附带的切割装置作了系统归纳,并对各种装置的功能和应用场合作了说明,可供设计、研究、使用装置时参考.

The development of non clogging pump on inside flow,design method and axial seal structurein the last ten years has been summarized. The questions that should be studied in the future are also raised.

目前国内运行的大型轴流泵汽蚀现象十分严重,大都由于设计时选型不当所致.为了有效地防止汽蚀现象发生应当合理选型.本文首次提出了指导大型轴流泵选型的nD值准则,并介绍了一种确定淹没深度的方法.

An improved way of single channel impeller hydraulic design is discussed in this paper, it is more simple than the former design method, which is especially fit to program CAD software. Based on summing up many excellent hydraulic models of single channel impeller, it gives various kinds of coefficient values of axial section. Inspect the design way of plan hydraulic design of double channel impeller, it provides the new design way of plan hydraulic of single channel impeller. It introduces a new change ruler of section area and an equation of plan channel midline. At last, a programming way and an example of design are given.