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离心泵的基本原理和结构讲稿.doc

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离心泵的基本原理和结构讲稿.doc

上传人:快乐蚂 蚁 2022/3/15 文件大小:2.49 MB

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离心泵的基本原理和结构讲稿.doc

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文档介绍:离心泵的基本原理和结构讲稿
several group number, then with b ± a, =c,c is is methyl b two vertical box between of accurate sb ± a, =c,c is is methyl b two vertical box between of accurate size. Per-2~3 measurement, such as proceeds of c values are equal and equal to the design value, then the vertical installation accurate. For example a, b, and c valueswhile on horizontal vertical errors for measurement, General in iron angle code bit at measurement level points grid errors, specific method is from baseline to methyl vertical box center line distance for a,, to b vertical box distance for b, list can measured
several group number, then with b ± a, =c,c is is methyl b two vertical box between of accurate size. Per-2~3 measurement, such as proceeds of c values are equal and equal to the design value, then the vertical installation accurate. For example a, b, and c valueswhile on horizontal vertical errors for measurement, General in iron angle code bit at measurement level points grid errors, specific method is from baseline to methyl vertical box center line distance for a,, to b vertical box distance for b, list can measured
several group number, then with b ± a, =c,c is is methyl b two vertical box between of accurate size. Per-2~3 measurement, such as proceeds of c values are equal and equal to the design value, then the vertical installation accurate. For example a, b, and c valueswhile on horizontal vertical errors for measurement, General in iron angle code bit at measurement level points grid errors, specific method is from baseline to methyl vertical box center line distance for a,, to b vertical box distance for b, list can measured
叶轮之间的能量转换采用导轮,液体沿导轮规定的流道流至次级叶轮的入口。
:转子包括泵轴、叶轮及其他附件。
(1)叶轮:它是离心泵内传递能量给液体的唯一元件,泵通过它使机械能变成了液体的压力能,使液体的压力提高。叶轮用键固定于轴上,随轴由原动机带动旋转,通过叶片把原动机的能量传给液体。
(2)轴:它是传递机械能的重要零件,原动机的扭矩通过它传给叶轮,轴和叶轮及其它定位压紧件组成转子。
第二节 离心泵的工作原理及主要工作参数

:离心泵在启动之前,泵内应灌满液体,此过程称为灌泵。大家是否注意到,抽水泵抽水前就有灌泵这一过程。在炼油厂,离心泵同样需要灌泵,不过多