A problem with multi-stage centrifugal pumps
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Dear friends: There are several balancing methods for multi-stage centrifugal pumps. Can you explain them in detail?
Generally speaking, the current domestic impellers are arranged in one direction. In this case, a balance plate or a balance drum is used for balance. In fact, the current designs are all combinations of discs and drums.
Three additional items: 1. The impeller is installed symmetrically. 2. Balance tube 3. Radial ribs.
The impeller is symmetrically arranged, with a balance drum, a flat disc plus a balance drum, thrust bearings, etc.
The main axial force balance method of multi-stage pump is: 1. Impeller symmetrical arrangement ； 2. Balance drum ； 3. Balance plate ； 4. Drum and disc combination.
Balance tube, balance plate, thrust bearing, I know these three are commonly used (domestic multi-stage pump)
I have seen that Japan's Ebara multi-pole pump has impellers installed symmetrically.
1. Impeller symmetrical arrangement； 2. Balance drum ； 3. Balance plate ； 4. Drum and disc combination.
1. Balance tube. 2. Balance plate. 3. Balance drum. 4. The balance plate and balance drum are used together. 5. The impeller is arranged symmetrically.
The impeller is symmetrically arranged, the balance drum, double balance drum, balance tube, thrust tile and balance drum are combined.