浮动叶轮平衡腔内液体泄漏量特性试验

Fluid Leakage Characteristics Test on the Balance Cavity of Floating Impeller

用专用设备模拟浮动叶轮的运行工况,对叶轮后密封环前后压力进行了直接测量,得出了后密封环前后压力与泵扬程的试验曲线,据此计算得到了浮动叶轮平衡腔内液体泄漏量特性曲线。试验解决了浮动叶轮平衡腔内液体泄漏量和压力的计算问题。

Operating conditions of the floating impeller was simulated with special equipment, and the fore-and- aft pressure of the back seal ring on the impeller was measured directly. The test curves of fore-and-aft pressure of the back seal ring and pump head were obtained. Thus the fluid leakage curve of the balance cavity of the floating impeller was got. The study solved the calculation problem of chamber pressure and leakage calculation in balance cavity of the floating impeller.