Pumpe und Verfahren zur Steuerung einer Pumpe

Details

Veröffentlichungs-Nr.

EP3489517

Aktenzeichen

EP17203461

Anmeldetag

24. November 2017

Veröffentlichung

1. Juni 2022

Erteilung

1. Juni 2022

Rechtsraum

EP

IPC

F04D7/04F04D13/08F04D15/00F04D15/02G01F23/00G01F23/14G01F25/00

Abstract

In a fist aspect the invention relates to a method for controlling a pump (2), the pump (2) comprising an integrated control unit (12), a drive unit having an electric motor (9) and a drive shaft (10), and a hydraulic unit having an impeller (11) connected to said electric motor (9) via said drive shaft (10), wherein the control unit (12) is operatively connected to the electric motor (9) and is configured for monitoring and controlling the operation of the pump (2), wherein the pump (2) further comprises an integrated pressure sensor (15) that has fixed reference pressure and that is operatively connected to the control unit (12), said control unit (12) being configured to determine the liquid level of the liquid surrounding the pump (2) based on a relation between the actual value of the pressure sensor (15) and a reference value, wherein said method comprises a sub-method for calibrating the pump (2) and comprising the steps of initiate pumping, continue pumping until the liquid level of the liquid surrounding the pump (2) is equal to a predetermined calibration level, the predetermined calibration level being fixed in relation to the pump (2), determining a calibration level actual value of the pressure sensor (15) when the liquid level of the liquid surrounding the pump (2) is equal to said predetermined calibration level, and calibrating the pump (2) by setting a new reference value corresponding to said calibration level actual value. In a second aspect the invention also relates to such a pump (2).

Anmelder

Firmen

Xylem Europe GmbH
Xylem IP Management S.à.r.l.

Land

🇨🇭 Schweiz

Fachgebiete