WitrynaThe test results showed that the optimized pump-turbine impeller has excellent energy performance (Zhu et al., 2015 ). In summary, many researchers have recently used a balance hole or balance disc to reduce axial force. Research on design, analysis, and optimization has been carried out. Witryna15 sty 2024 · The balance hole is used to balance the axial force acting on impeller caused by the pressure difference between the pump cavity and impeller flow …

Balance holes for dynamic stability of high-speed rotating …

Witryna15 lut 2024 · ①There is a balance hole on the wheel. The purpose is to equalize the pressure on both sides of the impeller, so as to balance the axial force, drill several small holes (called balance holes) symmetrically on the impeller disc near the hub, and set them on the pump casing and disc The sealing ring greatly reduces the pressure … Witryna3 sie 2024 · The balance hole (return port) is mainly used to balance the axial force generated by the impeller when it is working. It reduces the wear of the bearing end surface and the wear of the thrust plate. When the impeller rotates, the liquid filled in the impeller moves from the impeller under the action of centrifugal force. cornwall aviation heritage museum directions

CFD Analysis on the Balancing Hole Design for Magnetic Drive

Witryna9 paź 2024 · Second, balancing holes are drilled in the inner shaft installed to maintain the centre of rotation of the impeller during pump operation. The results confirmed … WitrynaAxial thrust balancing at the impeller This is the oldest method for balancing axial thrust and involves reducing the pressure in a chamber equipped with a throttling gap, usually down to the pressure level encountered at the impeller inlet. The pressure is balanced via balancing holes in the impeller. Witrynaof the impeller, wear ring, and balancing holes on the axial thrust. The results showed that the wear ring and balancing holes influenced the axial thrust, but the back gap of the impeller did not have a significant influence on the axial thrust. Lefor et al. [2] compared the casing ribs and J-grooves used to cornwall aviation heritage