FIELD: engines and pumps.
SUBSTANCE: proposed model series comprises pumps of delivery of 10-1000 m3/h and head of 10-75 m. Every representative pump comprises housing and shaft with impeller. Pump housing comprises running and flow section. Flow section comprises suction pipe, flow chamber with armor rear wall and sidewall making involute branch pipe communicated with pressure pipe. Impeller has multistart set of swirled vanes with constant or variable curvature radius. Said vanes are separated by diffuser intervane channels. Pump shaft incorporates running section supported by the case via bearings and furnished with gland seal. Pressure diffuser branch pipe features outlet cross-section area some 1.2-5.6 times larger that at inlet.
EFFECT: higher efficiency, reliability and longer life.
12 cl, 7 dwg
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| METHOD OF ELECTRICALLY DRIVEN PUMP UNIT PRODUCTION AND ELECTRICALLY DRIVE PUMP UNIT THUS MADE (VERSIONS) | 2012 |
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| METHOD OF MAKING MODEL SERIES OF ELECTRICALLY DRIVEN PUMP UNIT AND MAKING MODEL SERIES OF ELECTRICALLY DRIVEN PUMP UNIT THUS MADE | 2013 |
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| CHEMICAL VERTICAL PUMP WITH CLOSED IMPELLER | 2013 |
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RU2509921C1 |
