Submersible pump stage

The submersible pump stage comprises an impeller comprising a front cover disk and a rear cover disk, blades arranged between the front and rear cover disks, a sleeve and a guide apparatus, which comprises a front cover disk and a rear cover disk and blades arranged between the front and rear cover...

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Bibliographische Detailangaben
Hauptverfasser:	SKIBIN ALEKSANDR PETROVICH, LYASKIN ANTON SERGEEVICH, SVIRIDOV EVGENY MIKHAYLOVICH, ORBAN JACQUES, SHISHOV ANDREY VLADIMIROVICH
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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Beschreibung
Zusammenfassung:	The submersible pump stage comprises an impeller comprising a front cover disk and a rear cover disk, blades arranged between the front and rear cover disks, a sleeve and a guide apparatus, which comprises a front cover disk and a rear cover disk and blades arranged between the front and rear cover disks. The rear cover disk of the guide apparatus is equipped with through-openings which extend in end surfaces and are arranged circumferentially. The number of through-openings is selected to be at least equal to the number of interblade channels. The openings are formed in such a way that liquid can flow from a front pocket of this submersible pump stage into each interblade channel of the guide apparatus of the previous stage. The use of the claimed device reduces the abrasive wear on the cover disk of the impeller and significantly extends the service life of the electric motor.