EP2778423B1 - Agrégat de pompe centrifuge - Google Patents

Agrégat de pompe centrifuge Download PDF

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Publication number
EP2778423B1
EP2778423B1 EP13158591.1A EP13158591A EP2778423B1 EP 2778423 B1 EP2778423 B1 EP 2778423B1 EP 13158591 A EP13158591 A EP 13158591A EP 2778423 B1 EP2778423 B1 EP 2778423B1
Authority
EP
European Patent Office
Prior art keywords
control
centrifugal pump
pump assembly
external
assembly according
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.)
Active
Application number
EP13158591.1A
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German (de)
English (en)
Other versions
EP2778423A1 (fr
Inventor
Rolf-Werner Senczek
Thomas Blad
Bent Døssing
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.)
Grundfos Holdings AS
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Grundfos Holdings AS
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.)
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Publication date
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Application filed by Grundfos Holdings AS filed Critical Grundfos Holdings AS
Priority to TR2018/06831T priority Critical patent/TR201806831T4/tr
Priority to PL13158591T priority patent/PL2778423T3/pl
Priority to EP13158591.1A priority patent/EP2778423B1/fr
Priority to CN201480013981.1A priority patent/CN105121857B/zh
Priority to PCT/EP2014/053515 priority patent/WO2014139784A1/fr
Publication of EP2778423A1 publication Critical patent/EP2778423A1/fr
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Publication of EP2778423B1 publication Critical patent/EP2778423B1/fr
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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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • 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
    • F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine

Definitions

  • the invention relates to a centrifugal pump unit, in particular a Schuttingsum(7)lzpumpenaggregat with the features specified in the preamble of claim 1.
  • Centrifugal pump units of this type typically consist of a centrifugal pump and a driving this electric motor, an electronic speed controller, z.
  • a frequency converter for the motor and an internal electronic control in which the manipulated variable is the speed of the motor wherein speed controller and control form part of the unit and are typically arranged in a terminal or electronics box next to the pump and motor housing.
  • the control variable of such a scheme is z.
  • the internal electronic control not only provides a variety of control curves, such as constant pressure curves, proportional pressure curves or the like that can be selected, but that the unit has an internal microprocessor with appropriate software , which is able to automatically adapt to the heating system on the basis of the conditions in the heating system, in particular the self-adjusting pressure curves, the changing temperature of the pumped liquid, the flow rate and the like, the setpoint variables of the control.
  • This self-learning setpoint adjustment of the internal control has the advantage that the pump adapts in almost ideal way to the requirements of the heating system and thus can be operated with comparatively low electrical energy, adapted to the situation.
  • frequency converter controlled Schutsumicalzpumpenaggregate include the prior art, in which an external controller for speed control of the pump is provided. This external control is typically part of the central control of the heating system.
  • the interface for speed control is a control input to the pump, via which a pulse width modulated signal is transmitted, the pulse width determines the effective voltage or frequency and thus the speed of the pump.
  • Such pumps can be found for example in gas heating, as they are to be found as compact heaters in apartments, but also find use in smaller houses.
  • heating circulation pumps of larger design as installed in parallel in groups of two to eight pumps, for example, it counts to the prior art (Grundfos pump type Magna UPE) to control these individual heating circulation pumps, each having an internal electronic control, from the outside, in which case not the internal control is influenced as such, but only the setpoint specifications.
  • the invention has the object, a generic centrifugal pump unit in such a way that it can be used both in a heating system with operation of the internal electronic control and in a heating with external control or combined use.
  • the centrifugal pump unit according to the invention in particular Thompsonungsum cilantrolzpumpenaggregat, has a centrifugal pump, which is driven by an electric motor.
  • the unit also has an electronic speed controller for the engine and an internal electronic control in which the manipulated variable is the speed of the motor, wherein the speed controller and the control form part of the unit.
  • a signal input for the external control of the motor are provided and means for switching from the internal electronic control to an external speed control or for connecting an external speed control.
  • the basic idea of the present invention is thus to unite the above-described types of pumps known from the prior art, but moreover also to provide combinations with regard to the control / regulation which were hitherto not possible in this form.
  • the centrifugal pump assembly according to the invention can work advantageously both with its internal electronic control and with an external speed control and combinations thereof, for example by the unit works with the internal control and is controlled only in the case of connection by an external speed control. It is therefore not absolutely necessary to drive only in one or the other mode but combinations are also possible in an advantageous manner.
  • the signal input on the centrifugal pump assembly is formed by an electrical connection plug arranged on the unit housing.
  • Connector according to the invention may be both a male and a female connector part.
  • Such a signal input currently counts in heating circulation pumps to the prior art, as they are used in heating and are speed controlled by means of a pulse-width modulated signal.
  • a signal input can also be formed in another form, for example by an electrical filter, when the signal is transmitted modulated via the mains cable or by an infrared, Bluetooth or other receiver when the signal is to be transmitted wirelessly.
  • the means for switching the internal electronic control to an external speed control or for connecting an external speed control be designed such that they determine whether an external control is connected or not and when determining a connected external control to the external control constantly or if necessary, switch as needed. So can For example, be determined by a suitable electronic circuit at intervals, whether the signal input is connected to an external control or not. Since also the external control typically works electronically, this can be determined either by a corresponding "hand shaking" or by suitable calibration cycles.
  • a simple switching by means of a switch on the pump unit done which is formed for example by a contact within the electrical connector for the signal input, which is closed when inserting the mating connector, by a microswitch in this area, by a Hall sensor or the like ,
  • a switch is particularly useful when a switchover from the internal electronic control to an external speed control should be done, so for example one and the same pump unit as a replacement for externally driven in terms of speed centrifugal pump unit in a heating or working with internal electronic control heating circulation pump to be used in a heating system.
  • the centrifugal pump unit has a control that has a self-learning setpoint adjustment, which automatically adapts the operating points of the pump to the requirements of the system.
  • This self-learning setpoint adjustment can advantageously be used not only when installing the pump as a stand-alone solution in a heating system, but possibly also when used in a heating boiler, in which an external speed control is provided. It is then expedient to provide this external speed control only for connection, ie for predetermined operating situations in which, for example, a large amount of heat to be dissipated quickly or in emergency situations, only recognizable by the boiler control are.
  • centrifugal pump assembly even when occupying the signal input for external control of the motor with the internal control with the self-learning setpoint adjustment, only in these particular emergency situations of the external control, a priority speed signal is delivered.
  • the centrifugal pump assembly according to the invention is designed so that not only a speed control can be done via the external control but that also the self-learning setpoint adjustment via the external control can be activated and deactivated.
  • the advantageous self-learning setpoint adjustment which is provided in the internal control electronics of the centrifugal pump assembly, targeted to be used in heating systems that usually deliver only about their own control a speed signal for the centrifugal pump unit. It is understood that in this case the external control must be designed accordingly.
  • centrifugal pump unit is so control technology adapted so that it not only as in known Schuungsum maybelzpumpenaggregaten according to the prior art, which have a self-learning setpoint adjustment and numerous control curves offer only by manual intervention from the outside on the control panel of the pump unit is controllable, but now also by external Switching means, so controlled by electrical / electronic signals from the outside. It can therefore be done according to this development, a reset of the self-learning control by a corresponding external command, for example, from the electronic control of the heating from, via which also the external control. Very advantageous is the access to the control curves provided in the internal control, so that can be done via an external control access to all the essential control and regulation functions of the centrifugal pump unit.
  • an external switch is preferably provided with which the setpoint adjustment of the internal control electronics of the centrifugal pump assembly can be reset and / or one or more control curves of the internal control can be changed.
  • This switch is arranged at a distance from the pump unit and at least signal, preferably line connected. It may preferably be arranged in the control panel of the heating system, in which the centrifugal pump unit is installed.
  • the aggregate side separating means are then provided, which separate the speed control signals from the other control signals and further process accordingly.
  • the centrifugal pump unit according to the invention is provided for supplying a Mehrrois Vietnamesesystems, as is typically the case with heating circulation pumps for spas in which a heating circuit for space heating and a heating circuit for domestic water heating is provided.
  • the centrifugal pump unit has means for detecting the circulating heating circuit, preferably to detect automatically which of the heating circuits must be operated and redirect accordingly. This recognition can be done via the Pressure course take place at the pump, namely, during the switching from one to the other heating circuit briefly both heating circuits are open and thus a pressure drop can be detected.
  • a smartphone or the like in the internal control several profiles / control curves stored either manually via switches on the outside of the unit manually or possibly via a remote control, a smartphone or the like can be controlled wirelessly or via control means selectable are that are typically provided boiler control side.
  • Fig. 1 Pump unit shown is such that can be used both as a stand-alone unit in a heating system and as a speed-controlled unit in a heating boiler, in which the speed control by means of the thermal management, ie externally.
  • the unit consists of a centrifugal pump 1, the pump housing 2 is here exemplified as an inline housing and a suction port 3 and a pressure port 4 has. It is understood that in principle any other suitable housing form can be used here.
  • a gyro 5 is rotatably mounted, which sits on a shaft 6, which is a Electric motor 7 is driven, which sits in a motor housing 8, which is bolted to the pump housing 2.
  • a terminal box 9 is attached, which engages over the motor housing 8 and at the same time forms an electronics housing for the electronics arranged there.
  • the front side of the terminal box 9 forms an operating panel 10 of the pump unit.
  • Within the terminal box 9 is not only the Konnekttechnik to the motor windings, there is also an electronic speed controller in the form of a frequency converter 11 is provided and control electronics 12th
  • a plug 13 which serves for connection to a power cord, with which the pump unit can be connected to a local AC power supply, via which the electrical supply of the motor and the entire electronics.
  • a further connector 14 is arranged, which is for connecting an external controller, for. B. a boiler control of a heating is used and with the at least one PWM signal for direct speed control via the external control is transmitted.
  • the heating circulation pump is installed as a stand-alone pump in a heating system, this plug 18 is not required for external control, it is then closed by a blind plug 15.
  • the unit can then be used as Bankungsum stiilzpumpenaggregat, where it has an internal electronic control 16, via which a plurality of control curves can be specified.
  • a self-learning setpoint adjustment is provided in the internal control. Via a button 17 different operating modes / control curves / profiles can be adjusted from the outside to the control panel of the terminal box 9.
  • a display 18, which is designed here in the form of five LEDs the respective setting be read.
  • a display can also be provided here which represents alphanumerically. The formation of the aggregate corresponds in this respect to the Grundfos Group under the type designation Alpha II distributed high efficiency pump.
  • control electronics 12 is switched by means of an electronic switch 20 so that when a PWM signal is applied to the input formed by the plug 14, via the frequency converter 11 generates a corresponding speed signal for the motor 7 becomes.
  • the control electronics 12 then switches to the external input, the internal control can then be completely or partially turned off.

Landscapes

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

Claims (11)

  1. Groupe motopompe de recirculation de chauffage, comprenant une pompe centrifuge (1), un moteur électrique (7) entraînant la pompe (1), un variateur de vitesse électronique (11) pour le moteur (7) et une régulation électronique interne (16), pour laquelle la grandeur de réglage est la vitesse du moteur (7), le variateur de vitesse (11) et la régulation (16) faisant partie du groupe, une entrée de signaux étant prévue pour la commande externe du moteur (7) et des moyens (20) étant prévus pour faire basculer la régulation électronique interne (16) sur une commande de vitesse externe ou pour activer une commande de vitesse externe, caractérisé en ce que les moyens (20) pour le basculement sont des moyens électroniques conçus pour déterminer si une commande externe est connectée ou non et, en cas de détermination d'une commande externe connectée, opérer le basculement sur la commande externe.
  2. Groupe motopompe centrifuge selon la revendication 1, caractérisé en ce que l'entrée de signaux est formée par une fiche de raccordement électrique (14) disposée sur le carter (2, 8, 9) du groupe.
  3. Groupe motopompe centrifuge selon la revendication 1 ou 2, caractérisé en ce que les moyens pour le basculement comportent un commutateur disposé sur le groupe motopompe.
  4. Groupe motopompe centrifuge selon l'une des revendications précédentes, caractérisé en ce que les moyens pour le basculement comportent un capteur ou microrupteur conçu pour détecter une connexion de la fiche de raccordement électrique (14) de l'entrée de signaux.
  5. Groupe motopompe centrifuge selon l'une des revendications précédentes, caractérisé en ce que la régulation (16) comporte une adaptation de valeur de consigne auto-adaptative conçue pour l'adaptation automatique des points de fonctionnement de la pompe à l'installation.
  6. Groupe motopompe centrifuge selon la revendication 5, caractérisé en ce que l'adaptation de valeur de consigne auto-adaptative peut être activée ou désactivée via la commande externe.
  7. Groupe motopompe centrifuge selon la revendication 5 ou 6, caractérisé en ce que sont prévus des moyens de commutation externes permettant de réinitialiser l'adaptation de valeur de consigne auto-adaptative de la régulation interne (16) et/ou de faire varier une ou plusieurs courbes de réglage de la régulation interne (16).
  8. Groupe motopompe centrifuge selon la revendication 7 caractérisé en ce qu'est prévu un commutateur externe qui est disposé à distance spatial du groupe motopompe, de préférence dans un tableau de commande d'une installation de chauffage dans laquelle est intégré le groupe motopompe centrifuge.
  9. Groupe motopompe centrifuge selon l'une des revendications précédentes, caractérisé en ce que, via le conduit électrique qui transmet les signaux de commande de vitesse, de préférence des signaux PWM, d'autres signaux de commande sont transmis, de préférence modulés, des moyens de séparation étant prévus côté groupe, lesquels séparent les signaux de commande de vitesse des autres signaux de commande.
  10. Groupe motopompe centrifuge selon l'une des revendications précédentes, caractérisé en ce que le groupe motopompe est prévu pour alimenter un système de circuits de chauffage multiples et en ce que sont prévus des moyens de détection du circuit de chauffage à recirculer.
  11. Groupe motopompe centrifuge selon l'une des revendications précédentes, caractérisé en ce que sont mémorisées dans la régulation interne (16) plusieurs profils/courbes de régulation qui peuvent être sélectionnés par l'intermédiaire de commutateurs/moyens de commande.
EP13158591.1A 2013-03-11 2013-03-11 Agrégat de pompe centrifuge Active EP2778423B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
TR2018/06831T TR201806831T4 (tr) 2013-03-11 2013-03-11 Santrifüj pompası donanımı.
PL13158591T PL2778423T3 (pl) 2013-03-11 2013-03-11 Odśrodkowy agregat pompowy
EP13158591.1A EP2778423B1 (fr) 2013-03-11 2013-03-11 Agrégat de pompe centrifuge
CN201480013981.1A CN105121857B (zh) 2013-03-11 2014-02-24 供热循环泵机组
PCT/EP2014/053515 WO2014139784A1 (fr) 2013-03-11 2014-02-24 Groupe motopompe centrifuge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13158591.1A EP2778423B1 (fr) 2013-03-11 2013-03-11 Agrégat de pompe centrifuge

Publications (2)

Publication Number Publication Date
EP2778423A1 EP2778423A1 (fr) 2014-09-17
EP2778423B1 true EP2778423B1 (fr) 2018-02-28

Family

ID=47900713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13158591.1A Active EP2778423B1 (fr) 2013-03-11 2013-03-11 Agrégat de pompe centrifuge

Country Status (5)

Country Link
EP (1) EP2778423B1 (fr)
CN (1) CN105121857B (fr)
PL (1) PL2778423T3 (fr)
TR (1) TR201806831T4 (fr)
WO (1) WO2014139784A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016086986A1 (fr) * 2014-12-03 2016-06-09 Grundfos Holding A/S Ensemble convertisseur électronique à des fins de montage en rattrapage sur une partie externe d'un boîtier d'une unité de pompage
EP4015827B1 (fr) 2020-12-16 2023-09-27 Grundfos Holding A/S Ensemble pompe et procédé de commande d'un moteur électrique pour la commande d'un rotor d'une unité de pompage d'un ensemble pompe
CN114562463A (zh) * 2022-03-08 2022-05-31 四川省机械研究设计院(集团)有限公司 一种电磁调速多切换控制离心泵

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3920185A1 (de) * 1989-06-21 1991-01-10 Oplaender Wilo Werk Gmbh Kreiselpumpe oder luefter
DE19511170A1 (de) * 1995-03-28 1996-10-02 Wilo Gmbh Doppelpumpe mit übergeordneter Steuerung
EP0866228A3 (fr) * 1997-03-18 2000-12-13 Grundfos A/S Unité de pompage
US6717383B1 (en) * 2000-08-30 2004-04-06 Chris S. Brunt Fountain control for generating dynamically changing flow patterns
DE50210820D1 (de) * 2002-12-02 2007-10-11 Holter Christian Automatische Regelvorrichtung für Umwälzpumpen
EP1614903B1 (fr) * 2004-07-07 2019-05-22 Grundfos A/S Unité moteur pour entrainer une pompe centrifuge

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
PL2778423T3 (pl) 2018-07-31
TR201806831T4 (tr) 2018-06-21
EP2778423A1 (fr) 2014-09-17
CN105121857A (zh) 2015-12-02
WO2014139784A1 (fr) 2014-09-18
CN105121857B (zh) 2018-04-03

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