泵壳

泵壳是离心泵组件中的关键部件，包围叶轮和蜗壳，将叶轮的动能转化为压力能。它维持正确的流体流动方向，减少湍流，并承受内部压力和外部载荷。泵壳设计有特定的水力轮廓以优化效率，并制造到精确公差以防止泄漏，确保在工业应用中可靠运行。

泵壳的工作原理是将速度能转化为压力能。当流体以高速离开旋转的叶轮时，进入泵壳的蜗壳或扩散器部分，其中逐渐扩大的横截面积降低流体速度，根据伯努利原理增加静压。泵壳还提供受控的流动路径，最大限度地减少水力损失，并将流体引导至排放口。

The pump casing operates on the principle of converting velocity energy to pressure energy. As fluid exits the rotating impeller at high velocity, it enters the casing's volute or diffuser section where the gradually expanding cross-sectional area reduces fluid velocity, increasing static pressure according to Bernoulli's principle. The casing also provides a controlled flow path that minimizes hydraulic losses and directs fluid to the discharge outlet.