在离心泵设计过程中,设计螺旋形压水室和设计叶轮一样重要。因为压水室和叶轮的配合对离心泵性能有明显的影响。我们在离心泵“机辅设计”(一)——圆柱形叶片叶轮的设计一文中己介绍了叶轮的设计和绘形。本文着重介绍如何用电子计算机绘制螺旋 In designing a centrifugal pump, designing a spiral pressurized chamber is as important as designing an impeller. Because the pressure chamber and the impeller with the centrifugal pump performance has a significant impact. We have in the centrifugal pump “Machine Design” (a) - cylindrical vane impeller design has introduced the design and drawing of the impeller. This article focuses on how to draw a spiral on a computer