Centrifugal pump impeller seal ring
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A question from today’s exam: Besides affecting its volumetric efficiency and the sliding bearing effect, what else does the gap size between the impeller seal ring, the inter-stage seal rings, and other similar rings of a centrifugal pump affect? I can’t answer completely; please help me fill in the gaps. Thank you
Consider the efficiency factors when ensuring absolute leak-free sealing. “I don’t understand the “sliding bearing effect”; please explain it clearly. For reference.
The sliding bearing effect occurs because the mouth ring of a centrifugal pump serves a supporting function; this effect is particularly evident in pumps with dual support, and thus it functions similarly to that of a sliding bearing during operation.