FR2934876A1 - DYSFUNCTION CONTROL OF A MOTOR PUMP GROUP. - Google Patents

DYSFUNCTION CONTROL OF A MOTOR PUMP GROUP. Download PDF

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Publication number
FR2934876A1
FR2934876A1 FR0804457A FR0804457A FR2934876A1 FR 2934876 A1 FR2934876 A1 FR 2934876A1 FR 0804457 A FR0804457 A FR 0804457A FR 0804457 A FR0804457 A FR 0804457A FR 2934876 A1 FR2934876 A1 FR 2934876A1
Authority
FR
France
Prior art keywords
current
signal
threshold
pump
motor
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Withdrawn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
FR0804457A
Other languages
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
Priority to FR0804457A priority Critical patent/FR2934876A1/en
Priority to EP09290593A priority patent/EP2151579A1/en
Publication of FR2934876A1 publication Critical patent/FR2934876A1/en
Withdrawn legal-status Critical Current

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

Dans ce groupe motopompe comprenant une pompe (1) entraînée par un moteur (2) commandé par un circuit (3) électrique, il y a des moyens (8) pour activer les moyens (9) d'alerte si le seuil a été dépassé continuellement pendant un laps de temps donné.In this pump unit comprising a pump (1) driven by a motor (2) controlled by an electric circuit (3), there are means (8) for activating the warning means (9) if the threshold has been exceeded. continuously for a given period of time.

Description

La présente invention se rapporte aux groupes motopompes comprenant une pompe entraînée par un moteur commandé par un circuit électrique. Le courant qui passe dans le circuit électrique dépasse un seuil donné lors du démarrage du moteur. The present invention relates to pump units comprising a pump driven by a motor controlled by an electric circuit. Current flowing in the electrical circuit exceeds a given threshold when starting the engine.

Il peut se produire un dysfonctionnement dans 10 lequel le groupe motopompe fonctionne sans pour autant assurer la fonction de refoulement, par exemple parce que •le flotteur de détection de niveau est bloqué ou parce qu'il est encrassé. Il peut aussi arriver que la pompe soit bouchée. La pompe peut aussi continuer à fonctionner 15 parce qu'elle détecte d'une manière erronée la présence de liquide à aspirer. There may be a malfunction in which the pump unit operates without providing the discharge function, for example because the level detection float is blocked or because it is dirty. It can also happen that the pump is clogged. The pump may also continue to operate because it erroneously detects the presence of liquid to be aspirated.

L'invention pallie cet inconvénient en permettant de se rendre compte d'un dysfonctionnement du 20 groupe motopompe, quel qu'il soit. The invention overcomes this disadvantage by making it possible to be aware of a malfunction of the pump unit, whatever it may be.

. Suivant l'invention il est prévu des moyens pour activer les moyens d'alerte si le seuil donné du courant qui passe dans le circuit électrique de commande 25 du moteur a été dépassé continuellement pendant un laps de temps donné. . According to the invention there is provided means for activating the warning means if the given threshold of current flowing in the electrical control circuit 25 of the motor has been exceeded continuously for a given period of time.

Certes, on ne connaît pas la cause du dysfonctionnement, mais on est sûr qu'un 30 dysfonctionnement s'est produit quel qu'en soit la cause et qu'il convient de prendre les mesures nécessaires pour y remédier.5 Suivant un mode de réalisation particulièrement simple, le groupe motopompe comprend des moyens de mesure du courant relié à un comparateur comparant le courant mesuré à un courant de référence et le comparateur est relié à une horloge à laquelle il envoie un signal tant que le seuil est dépassé. L'horloge envoie un signal au moyen d'émission d'alerte qui reçoit ce signal au-delà du laps de temps donné. Admittedly, we do not know the cause of the malfunction, but we are sure that a malfunction has occurred whatever the cause and that it is necessary to take the necessary measures to remedy it. Particularly simple embodiment, the pump unit comprises means for measuring the current connected to a comparator comparing the current measured with a reference current and the comparator is connected to a clock to which it sends a signal as long as the threshold is exceeded. The clock sends a signal to the alert transmitting means which receives this signal beyond the given time period.

Au dessin annexé, donné uniquement à titre d'exemple, la figure unique est un schéma d'un groupe motopompe suivant l'invention. In the accompanying drawing, given solely by way of example, the single figure is a diagram of a pump unit according to the invention.

Le groupe motopompe suivant l'invention comprend une pompe 1 entraînée par un moteur 2 électrique commandé par un circuit 3 électrique alimenté par une alimentation 4 et comportant un capteur de niveau haut et un capteur de niveau bas. Le capteur de niveau haut met le groupe en marche lorsque du liquide dépasse un niveau haut dans la cuve où le groupe est placé et l'arrête lorsque le niveau du liquide dans la cuve s'abaisse en dessous du niveau bas. Entre l'alimentation 4 et le circuit 3 électrique est monté un dispositif 5 de mesure du courant. Ce dispositif de mesure du courant est relié à un comparateur 6 comparant le courant mesuré à un courant issu d'une source 7 de référence. Le comparateur a une première sortie menant à une horloge 8. L'horloge 8 est reliée à une alerte 9. The pump unit according to the invention 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. Between the power supply 4 and the electric circuit 3 is mounted a device 5 for measuring the current. This current measuring device 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 clock 8. The clock 8 is connected to an alert 9.

S'il se produit un dysfonctionnement, le dispositif 5 de mesure du courant envoie en permanence un signal correspondant à un courant d'une intensité d'un ampère au comparateur 6. Le comparateur 6, puisque l'intensité d'un ampère est supérieure au seuil donné par la référence 7, envoie en permanence un signal à l'horloge 8. Après que l'horloge 8 ait reçu ce signal pendant une heure, elle estime que le laps de temps donné est dépassé et elle envoie aux moyens 9 d'émission d'alerte un signal pour que l'alerte soit donnée. If a malfunction occurs, the current measuring device 5 continuously sends a signal corresponding to a current of an intensity of one ampere to the comparator 6. The comparator 6, since the intensity of an ampere is greater than at the threshold given by the reference 7, continuously sends a signal to the clock 8. After the clock 8 has received this signal for one hour, it considers that the given period of time is exceeded and it sends to the means 9 d alerting a signal for the alert to be given.

Les moyens 8 d'activation peuvent avoir aussi la forme d'un logiciel.10 The activation means 8 may also have the form of software.

Claims (2)

REVENDICATIONS1. Groupe motopompe comprenant une pompe (1) entraînée par un moteur (2) commandé par un circuit (3) électrique, dans lequel le courant qui passe dans le circuit (3) dépasse un seuil donné lors du démarrage du moteur, caractérisé par des moyens (8) pour activer les moyens (9) d'alerte si le seuil a été dépassé continuellement pendant un laps de temps donné. REVENDICATIONS1. Motor-pump unit comprising a pump (1) driven by a motor (2) controlled by an electric circuit (3), in which the current flowing in the circuit (3) exceeds a given threshold when the motor starts, characterized by means (8) to activate the warning means (9) if the threshold has been exceeded continuously for a given period of time. 2. Groupe motopompe suivant la revendication 1, caractérisé en ce que les moyens (6, 7, 8)' d'activation comprennent des moyens (5) de mesure du• courant reliés à un comparateur (6) comparant le courant mesuré à un courant de référence, le comparateur (6) étant relié à une horloge (8) à laquelle il envoie un signal tant que le seuil est dépassé et l'horloge (8) envoie un signal aux moyens (9) d'émission d'alerte si elle reçoit ce signal au-delà du laps de temps donné.20 2. Pump unit according to claim 1, characterized in that the means (6, 7, 8) 'of activation comprise means (5) for measuring the current • connected to a comparator (6) comparing the current measured to a reference current, the comparator (6) being connected to a clock (8) to which it sends a signal as long as the threshold is exceeded and the clock (8) sends a signal to the means (9) of warning transmission if it receives this signal beyond the given time.
FR0804457A 2008-08-05 2008-08-05 DYSFUNCTION CONTROL OF A MOTOR PUMP GROUP. Withdrawn FR2934876A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0804457A FR2934876A1 (en) 2008-08-05 2008-08-05 DYSFUNCTION CONTROL OF A MOTOR PUMP GROUP.
EP09290593A EP2151579A1 (en) 2008-08-05 2009-07-28 Malfunction control of a motor pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0804457A FR2934876A1 (en) 2008-08-05 2008-08-05 DYSFUNCTION CONTROL OF A MOTOR PUMP GROUP.

Publications (1)

Publication Number Publication Date
FR2934876A1 true FR2934876A1 (en) 2010-02-12

Family

ID=40380404

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0804457A Withdrawn FR2934876A1 (en) 2008-08-05 2008-08-05 DYSFUNCTION CONTROL OF A MOTOR PUMP GROUP.

Country Status (2)

Country Link
EP (1) EP2151579A1 (en)
FR (1) FR2934876A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11512696B2 (en) * 2016-01-15 2022-11-29 Milwaukee Electric Tool Corporation Transfer pump

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1255174A1 (en) * 2001-04-30 2002-11-06 Starite S.p.A. Electric Pump with automatic on-off device
US20030065425A1 (en) * 2001-10-01 2003-04-03 Veeder-Root Company Pump controller for submersible turbine pumps
EP1582747A1 (en) * 2004-03-27 2005-10-05 Honeywell B.V. Method for testing the functioning of a pump motor integrated into a heating appliance and heating appliance
EP1585205A2 (en) * 2004-04-09 2005-10-12 A.O. Smith Corporation Controller for a motor and a method of controlling the motor
EP2025943A2 (en) * 2007-08-15 2009-02-18 Mono Pumps Limited Pump system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5450944A (en) * 1977-09-30 1979-04-21 Toshiba Corp Protective device for synchronous motor
JPS5475052A (en) * 1977-11-28 1979-06-15 Hitachi Ltd Protective relay system for motor
JPH03261325A (en) * 1990-03-12 1991-11-21 Hitachi Ltd Protective relay device
JPH1116475A (en) * 1997-06-25 1999-01-22 Meidensha Corp Overcurrent relay for motor protection

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1255174A1 (en) * 2001-04-30 2002-11-06 Starite S.p.A. Electric Pump with automatic on-off device
US20030065425A1 (en) * 2001-10-01 2003-04-03 Veeder-Root Company Pump controller for submersible turbine pumps
EP1582747A1 (en) * 2004-03-27 2005-10-05 Honeywell B.V. Method for testing the functioning of a pump motor integrated into a heating appliance and heating appliance
EP1585205A2 (en) * 2004-04-09 2005-10-12 A.O. Smith Corporation Controller for a motor and a method of controlling the motor
EP2025943A2 (en) * 2007-08-15 2009-02-18 Mono Pumps Limited Pump system

Also Published As

Publication number Publication date
EP2151579A1 (en) 2010-02-10

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Effective date: 20130430