EP2151580A1 - Betriebssteuerung eines Motorpumpenaggregats - Google Patents

Betriebssteuerung eines Motorpumpenaggregats Download PDF

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Publication number
EP2151580A1
EP2151580A1 EP09290594A EP09290594A EP2151580A1 EP 2151580 A1 EP2151580 A1 EP 2151580A1 EP 09290594 A EP09290594 A EP 09290594A EP 09290594 A EP09290594 A EP 09290594A EP 2151580 A1 EP2151580 A1 EP 2151580A1
Authority
EP
European Patent Office
Prior art keywords
time
clock
pump unit
threshold
current
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09290594A
Other languages
English (en)
French (fr)
Inventor
Louis Symoens
Martial Smis
Thomas Spitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KSB SAS
Original Assignee
KSB SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KSB SAS filed Critical KSB SAS
Publication of EP2151580A1 publication Critical patent/EP2151580A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0245—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump
    • F04D15/0254—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump the condition being speed or load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
    • F04D15/0236—Lack of liquid level being detected by analysing the parameters of the electric drive, e.g. current or power consumption

Definitions

  • the invention relates to motor pump units and, more particularly, to the control of their operation.
  • a pump unit includes a pump driven by a motor.
  • the motor is controlled by an electric circuit. Current flowing in the electrical circuit exceeds a given threshold when starting the engine.
  • the invention relates to a pump unit which is such that any operating failure of the group causes the emission of an alert, regardless of the failure.
  • the pump unit comprises means for activating an alarm when the given threshold of the current which passes into the electrical circuit, which must be exceeded when the motor starts, has not been exceeded during a first given time.
  • the pump unit comprises means for measuring the current connected to a comparator.
  • the comparator compares the measured current with a reference current.
  • the comparator is connected to a first clock to which it sends a signal whenever the threshold is exceeded. This signal resets the first clock and the first clock sends a signal to the alert transmitting means if it has not been reset during the first given period of time.
  • the pump can turn and consume electrical energy, without performing its function. As the pump does not pump back, the water will rise and cause an overflow. The pump may also continue to run in a vacuum, because it erroneously detects the presence of liquid to be aspirated. To remedy these According to one embodiment of the invention, there are means for activating the warning means if the threshold has been exceeded continuously for a second given period of time. Again, the nature of the malfunction is not known in the pump unit according to the invention, but whatever it is, it is known that it exists and the necessary measures can be taken to remedy it.
  • the comparator is for this purpose connected to a second clock to which it sends a signal as long as the threshold is exceeded and the second clock sends a signal to the alert transmission means if it receives this signal beyond the second given period of time.
  • the second period of time is longer than the first.
  • the alert transmission means may be acoustic or optical. This can be in particular a light emitting diode, a horn, a bell, the signal can be transmitted remotely.
  • the pump unit comprises a pump 1 driven by an electric motor 2 controlled by an electric circuit 3 powered by a power supply 4 and comprising a high level sensor and a low level sensor.
  • the high level sensor activates the unit when liquid exceeds a high level in the tank where the unit is placed and stops it when the level of the liquid in the tank falls below the low level.
  • a device 5 for measuring the current is connected to a comparator 6 comparing the current measured with a current from a source 7 reference.
  • the comparator has a first output leading to a first clock 8 and a second output leading to a second clock 9.
  • the two clocks are respectively connected to an alert 10.
  • the pump set works as follows.
  • the current measuring device 5 does not detect the 1 amp start current threshold. It does not send to the comparator a signal corresponding to a current of 1 ampere, but a signal corresponding to a current much less intense so that the comparator 6 will not send during the given period of time a signal to the clock 8.
  • the clock 8 not being reset during this two hour period triggers the alarm 10.
  • the current measuring device 5 continuously sends a current of an intensity of one ampere to the comparator 6.
  • the activation means 6, 7, 8 may also have the form of software.
EP09290594A 2008-08-05 2009-07-28 Betriebssteuerung eines Motorpumpenaggregats Withdrawn EP2151580A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0804458A FR2934877A1 (fr) 2008-08-05 2008-08-05 Controle de fonctionnement d'un groupe motopompe.

Publications (1)

Publication Number Publication Date
EP2151580A1 true EP2151580A1 (de) 2010-02-10

Family

ID=40386078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09290594A Withdrawn EP2151580A1 (de) 2008-08-05 2009-07-28 Betriebssteuerung eines Motorpumpenaggregats

Country Status (2)

Country Link
EP (1) EP2151580A1 (de)
FR (1) FR2934877A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021227221A1 (zh) * 2020-05-09 2021-11-18 蜂巢动力系统(江苏)有限公司 一种电子水泵干转保护方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1255174A1 (de) * 2001-04-30 2002-11-06 Starite S.p.A. Elektrische Pumpe mit automatischer An-/Abschaltvorrichtung
US20030065425A1 (en) * 2001-10-01 2003-04-03 Veeder-Root Company Pump controller for submersible turbine pumps
EP1582747A1 (de) 2004-03-27 2005-10-05 Honeywell B.V. Verfahren zur Funktionsüberprüfung eines in eine Heizeinrichtung integrierten Pumpenmotors sowie Heizeinrichtung
EP1585205A2 (de) * 2004-04-09 2005-10-12 A.O. Smith Corporation Steuergerät für einen Motor und Verfahren zur Steuerung des Motors
WO2009006927A1 (de) * 2007-07-11 2009-01-15 Siemens Aktiengesellschaft Verfahren zur vermeidung von trockenlauf bei einer kreiselpumpe, pumpenüberwachungsbaustein und anordnung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1255174A1 (de) * 2001-04-30 2002-11-06 Starite S.p.A. Elektrische Pumpe mit automatischer An-/Abschaltvorrichtung
US20030065425A1 (en) * 2001-10-01 2003-04-03 Veeder-Root Company Pump controller for submersible turbine pumps
EP1582747A1 (de) 2004-03-27 2005-10-05 Honeywell B.V. Verfahren zur Funktionsüberprüfung eines in eine Heizeinrichtung integrierten Pumpenmotors sowie Heizeinrichtung
EP1585205A2 (de) * 2004-04-09 2005-10-12 A.O. Smith Corporation Steuergerät für einen Motor und Verfahren zur Steuerung des Motors
WO2009006927A1 (de) * 2007-07-11 2009-01-15 Siemens Aktiengesellschaft Verfahren zur vermeidung von trockenlauf bei einer kreiselpumpe, pumpenüberwachungsbaustein und anordnung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021227221A1 (zh) * 2020-05-09 2021-11-18 蜂巢动力系统(江苏)有限公司 一种电子水泵干转保护方法

Also Published As

Publication number Publication date
FR2934877A1 (fr) 2010-02-12

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