离心泵出口安装的同心异径管有什么作用?

2025-03-15 20:56:59
推荐回答(4个)
回答1:

离心泵进出口管线多可以安装异径管。1、满足泵的管路形态要求,在管路的工艺计算完成后与泵联结的管道已确定,变径都是为了减少流体的流速以降低流动阻力,节能并满足泵的性能要求;2、在泵的进出口向上时采用偏心异径管为了满足工艺安装所需的空间。3、在安装方向上选用上平还是下平要看工艺要求,下平是为了避免存留液体,上平为了避免存留气体发生气蚀。4、从操作和经济合理性上讲,在完成一级变径后安装阀门再做第二级变径安装较为合理。

回答2:

离心泵铭牌上标识的50*80,应该表示该泵的进口为80,出口为50,安装同心异径管就是为了使管路能够和泵的进出口相连接,进口一般是大变小,出口一般是小变大。

回答3:

分别是将进出口管径变大,目的是减低管道流体阻力,降低能量损失。

回答4:

对于水平吸入的离心泵,当入口管变径时,应在靠近泵的入口处设置偏心异径管。当管道从下向上进泵时,应采用顶平安装,当管道从上向下进泵时,宜采用底平安装

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