Low lift Dry Gas Seals in High Vapor Pressure, Flashing Hydrocarbon Pump Applications
Abstract
Problem: Ethane pumps with process lubricated; ‘liquid (wet)’ 2CW-CS, plan 11, 76, seals suffered a high frequency of seal failures from initial commissioning in November 2009
•2 fractionator units each with 2 ethane export pumps
•12 stage, BB3 axially split
•5.7MW absorbed at BEP
•suction pressure 40.7-50.3 barg
•suction temperature 12.8-18.9 °C
•3570 rpm, 89mm shaft size
•Shaft speed 16.6 m/s, p.v 677-837 bar.m/s
•81-96% of API682 scope
•Typical flow range 277–345 m3/h
•136 / 331 / 408 m3/h (MCSF / BEP / EOC)
Description
Case StudySubject
TurbomachinesCollections
Citation
Shaw, Patrick; Prichard, Kent (2015). Low lift Dry Gas Seals in High Vapor Pressure, Flashing Hydrocarbon Pump Applications. Turbomachinery Laboratory, Texas A&M Engineering Experiment Station. Available electronically from https : / /hdl .handle .net /1969 .1 /172681.