FR2934876A1 - DYSFUNCTION CONTROL OF A MOTOR PUMP GROUP. - Google Patents
DYSFUNCTION CONTROL OF A MOTOR PUMP GROUP. Download PDFInfo
- 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- Withdrawn
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11512696B2 (en) * | 2016-01-15 | 2022-11-29 | Milwaukee Electric Tool Corporation | Transfer pump |
Citations (5)
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)
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 |
-
2008
- 2008-08-05 FR FR0804457A patent/FR2934876A1/en not_active Withdrawn
-
2009
- 2009-07-28 EP EP09290593A patent/EP2151579A1/en not_active Withdrawn
Patent Citations (5)
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20130430 |