Barry Erickson Justin Bjork Flowserve Pump Division... Purpose End Suction Pumps Double Suction Pumps Multi-Stage Pumps Wear Rings... Discharge Pressures Efficiency Thrust Loads... End S
Trang 1The Importance of Internal Clearances
Dr Barry Erickson
Justin Bjork
Flowserve Pump Division
Trang 2Purpose
End Suction Pumps
Double Suction Pumps Multi-Stage Pumps
Wear Rings
Trang 3Suction vs Discharge Pressures Efficiency
Thrust Loads
Trang 4Suction vs Discharge Pressures
Trang 5End Suction Pumps
Vanes to Casing
Vanes to Cover
Thermal Expansion
Trang 6Double Suction Pumps
Offset Wear Rings
Shuttling Effect
Trang 7Multi-Stage Pumps
Opposing Impellers
Equal Pressure Loss
Loose A Gap Eddy Flows =Axial Vibration Tight B Gap Vane Passing Cavitation
Trang 8Opposing Impellers
Trang 9A Gap B Gap
Trang 10Vane Passing Cavitation
Trang 11Wear Rings
Lomakin Effect
Alternate Materials
Trang 12Discussion