FIELD: engines and pumps.
SUBSTANCE: proposed method comprises varying pump impeller RPM and differs from known methods in that aforesaid variation is effected by varying delivery pump impeller RPM, given the latter is furnished with low-voltage induction frequency-controlled drive. Note here that, periodically and after each pump starting, pump delivery and power consumed by pump drive are measured to determined specific power consumption, and, by smoothly varying converter output voltage frequency, to set operating conditions of pumping unit corresponding to minimum specific power consumption, aforesaid converter supplying booster pump drive motor. Pump unit delivery is estimated, in particular from the results of measuring pump discharge head, using a certain relationship.
EFFECT: higher efficiency of adjustment.
3 cl, 1 dwg
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