PULP VERTICAL PUMP WITH ENCLOSED IMPELLER (VERSIONS)

摘要

FIELD: engines and pumps.SUBSTANCE: semisubmersible rotary cantilever pump comprises housing composed by running and flow parts housings. Running part housing is equipped with housings of bearings. Pump rotor shaft has cantilever ends and runs in bearings. Running part housing features basic or longer running post including extension insert arranged between running part main housing and flow section housing. Shaft lower extension length is larger than its upper extension length. Enclosed impeller comprises main and cover discs and multifilar system of curved vanes separated by intervane channels. Pressure pipe is composed by diffuser with difference in inlet and outlet cross-sections that allows reduced flow rate at diffuser outlet.EFFECT: longer life, higher reliability and efficiency.21 cl, 6 dwg