Title:
PUMP SYSTEM
Document Type and Number:
Japanese Patent JP2016183610
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a pump system capable of surely detecting occurrence of cavitation, and capable of eliminating such situations in which cavitation occurs.SOLUTION: A pump system 50 includes a pump 51, a driving motor 52 which transmits driving force to the pump 51 and of which rotation speed is adjusted in accordance with a frequency, a primary side pressure sensor 55 for detecting a primary side pressure of the pump 51, and a control section 91 which can control the driving motor 52 by a prescribed set frequency. The control section 91 monitors a measurement value of the primary side pressure sensor 55, and controls the driving motor 52 by a frequency lower than the set frequency when a pressure lower than a threshold set on the basis of a pressure in a steady state in which cavitation does not occur is detected. The control section 91 notifies the occurrence of the cavitation via a display section 93 when the frequency is lowered to a lower limit frequency.SELECTED DRAWING: Figure 2
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Inventors:
KAMINAGA KAZUHIRO
HADO MAKOTO
HADO MAKOTO
Application Number:
JP2015064339A
Publication Date:
October 20, 2016
Filing Date:
March 26, 2015
Export Citation:
Assignee:
MIURA KOGYO KK
International Classes:
F04D15/00
Attorney, Agent or Firm:
Iwaike Mitsuru
Ryota Kato
Ryota Kato