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以往的低比转数离心泵长短叶片均采用对称布置。这种布置导致短叶片相邻的两个流道内通过的流量不相等,造成水流速度不均匀,从而加大了水力损失。为了克服以上的缺陷,我院水机教研室根据叶轮叶片间流道内速度分布的分析及有关三元流动计算所得速度分布的统计,将短叶片偏置。试制成的样机经反复试验,证明本技术是成功的、可靠的,
In the past, the ratio of the number of low-speed centrifugal pump long and short blades are symmetrical arrangement. This arrangement results in unequal flow rates through the two adjacent flow paths of the short blades, resulting in a non-uniform flow velocity and increasing hydraulic losses. In order to overcome the above shortcomings, the water department of our hospital analyzed the velocity distribution in the runner between the impeller blades and calculated the velocity distribution obtained from the calculation of the ternary flow to offset the short blade. Trial prototype made after repeated tests to prove that the technology is successful, reliable,