Whole model of impeller clearance and labyrinth seal are built up, and the effect of seals with two sides of impeller to axial thrust is considered fully.

建立了叶轮间隙和迷宫密封的整体模型，并充分考虑了叶轮两侧密封对轴向推力的影响。

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With different working pressure, the frame form of these series pump is also dissimilar, such as structure shown as in figure 5 and 6. Now introduce how to adjust the impeller clearance one by one.

该系列泵随着工作压力的不同，托架形式也不同，如图5、6图所示两种结构，现逐一介绍叶轮间隙的调整方法。

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Rotating impeller week, will go to a certain point of view, the local emergence of Sandy Bay's largest radial clearance or minimum clearance space.

叶轮转动一周，会在转到某一角度时，局部出现口环径向间隙的最大间隙或最小间隙。

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