View
216
Download
0
Category
Tags:
Preview:
DESCRIPTION
vibration material for one and all: this is an useful information for those who needs this
Citation preview
The Importance of Internal Clearances
Dr. Barry EricksonJustin Bjork
Flowserve Pump Division
AgendaPurposeEnd Suction PumpsDouble Suction PumpsMulti-Stage PumpsWear Rings
Purpose
Suction vs. Discharge PressuresEfficiencyThrust Loads
Suction vs. Discharge Pressures
End Suction Pumps
Vanes to CasingVanes to CoverThermal Expansion
Double Suction Pumps
Offset Wear RingsShuttling Effect
Multi-Stage Pumps
Opposing ImpellersEqual Pressure Loss
A Gap B GapLoose A Gap Eddy Flows =Axial VibrationTight B Gap Vane Passing Cavitation
Opposing Impellers
A Gap B Gap
Vane Passing Cavitation
Wear Rings
Lomakin EffectAlternate Materials
Discussion
Recommended