EP2483564B1 - Unité d'alimentation électrique de turbo pompe avec dispositif commutateur - Google Patents

Unité d'alimentation électrique de turbo pompe avec dispositif commutateur Download PDF

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Publication number
EP2483564B1
EP2483564B1 EP10760992.7A EP10760992A EP2483564B1 EP 2483564 B1 EP2483564 B1 EP 2483564B1 EP 10760992 A EP10760992 A EP 10760992A EP 2483564 B1 EP2483564 B1 EP 2483564B1
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EP
European Patent Office
Prior art keywords
switching device
drive motor
connection
switching
microcomputer
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.)
Not-in-force
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EP10760992.7A
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German (de)
English (en)
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EP2483564A1 (fr
Inventor
Marjan Silovic
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KSB AG
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KSB AG
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Publication of EP2483564A1 publication Critical patent/EP2483564A1/fr
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Publication of EP2483564B1 publication Critical patent/EP2483564B1/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
    • F04D13/12—Combinations of two or more pumps
    • F04D13/14—Combinations of two or more pumps the pumps being all of centrifugal type
    • 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
    • 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
    • F04D15/029—Stopping of pumps, or operating valves, on occurrence of unwanted conditions for pumps operating in parallel

Definitions

  • the invention relates to a arranged on a centrifugal pump assembly switching device according to the preamble of claim 1, and a centrifugal pump assembly with such a switching device and a method for operating a centrifugal pump assembly.
  • DE 10 2006 018 025 A1 is a arranged on a centrifugal pump assembly switching device and an arrangement of parallel operated centrifugal pump units with several such switching devices known. Such arrangements of centrifugal pump units can be found in a variety of piping systems in which a certain discharge pressure is to be maintained.
  • the microcomputer is integrated in the switching device, the switching device provided with at least one signal input and terminals for at least one serial bus system, the microcomputer connected to the signal input and the terminals of the bus system and in the drive motor and / or the switching device means for passing signals are present.
  • the switching device is provided with a connection for a second voltage network, and the switching means switches the current flow for a drive motor connection arranged on the switching device and / or the drive motor such that the drive motor connection and / or the drive motor with the connection for the first voltage network and / or with the connection for the second voltage network is connectable.
  • the use of in the WO 2007/118706 A1 described switching device in a multi-pump arrangement For example, a double pump arrangement, in which each pump is to be operated either with a first voltage or with a second voltage, requires a switching device per centrifugal pump unit. For some, in practice encountered common standard configurations, such as a double pump arrangement, this seems too complex.
  • the EP 0735 273 A1 discloses a double pump with two arranged in a housing wheels that promote a fluid. Each impeller is driven by one electric motor each. At one of the two electric motors, a higher-level control and / or regulation is arranged, which adjusts or regulates the rotational speeds of the two electric motors independently of each other arbitrarily between engine stall and the rated speed.
  • the US 2006/0072262 A1 shows a system with multiple power sources and a switching device for supplying power to a plurality of consumers.
  • the invention is based on the problem of developing a cost-effective switching device for a centrifugal pump assembly, which in certain multi-pump arrangements, in particular in a double pump arrangement, a speed-proof or speed-controlled operation of the centrifugal pump units allows for low wiring and supports a fail-safe operation of the centrifugal pump assembly.
  • the switching device has at least one further connection for a further drive motor and at least one additional switching means which switches the current flow for the further drive motor connection and / or for the at least one further drive motor such that the further drive motor connection and / or or the further drive motor can be connected to the connection for the first voltage network and / or to the connection for the second voltage network.
  • the drive motor connections and / or the drive motors can be individually connected to one of the voltage networks, depending on the system requirements.
  • the switching device can be mounted on a drive motor and / or a centrifugal pump of a centrifugal pump assembly.
  • a switching device can switch not only the drive motor on which the switching device is arranged between two voltage networks, but a switching can also be made for other connectable to the switching device drive motors.
  • a mounted on a centrifugal pump assembly switching device is thus able to control a complete multi-pump assembly. Since the switching device is provided with a connection for a second voltage network, the centrifugal pump units of a centrifugal pump arrangement provided with such a switching device can be connected to different voltage networks.
  • the arrangement of the switching device to the drive motor saves cabinet space and through the integrated microcomputer, the dependence on a central, higher-level control is prevented. This improves the reliability of such a centrifugal pump assembly.
  • the switching device has means for passing the first voltage network and a connection for the electrical supply of a device for generating the second voltage network.
  • This is an electrical supply of an external device that is used to generate the second voltage network serves, provided directly from the switching device.
  • a frequency converter connected to the switching device can be supplied electrically directly from the switching device.
  • a separately available supply branch for the device for generating the second voltage network is eliminated. It suffices a mains supply to the switching device.
  • the switching means switches the drive motor between different voltage networks or between voltage networks with fixed and variable frequency.
  • the function of the centrifugal pump units is ensured even in the event of a power grid failure.
  • connection of the switching device for a second voltage network with a frequency converter wherein the frequency converter is electrically supplied via the connection for electrical supply of the device for generating the second voltage
  • each with two switching means a drive motor between the voltage networks switch and connect the microcomputer, preferably by means of one or more control lines or a bus system to the frequency converter.
  • a switching means which may also act like a toggle switch, only an immediate switching is possible. With two switching means, the timing of the switching process can be individually adjusted via the microcomputer to the particular situation.
  • a connection or disconnection request for a centrifugal pump assembly or a changeover request between different voltage networks can be transmitted via a signal line or a bus system from a frequency converter to the switching device of the centrifugal pump arrangement. This allows the construction of a multi-pump arrangement with temporary assignment of the frequency converter voltage to individual drive motors, which are thereby speed-controlled switched on or off, while short connecting cable lengths.
  • An advantage results from the fact that in case of failure of the frequency converter or even in a fault in the signal and / or the bus connection of the microcomputer or several centrifugal pump units can switch to a voltage network fixed frequency. Such an operating condition bypassing the frequency converter is also referred to as a bypass mode.
  • An embodiment provided for a double pump arrangement in particular a twin pump arrangement, provides that two drive motors are connected to the switching device and four switching means switch the drive motors between the voltage networks. To a switching device thereby two drive motors can be connected. Depending on the system requirements, the drive motors can be individually connected to the fixed frequency voltage or to the frequency converter voltage. In a corresponding manner switching devices for further multi-pump arrangements are provided according to the invention.
  • the switching device has means for detecting and / or storing motor current, motor voltage and / or power factor values. By recording and / or monitoring performance data, additional engine monitoring is possible.
  • the switching device comprises means for monitoring and / or diagnostic functions. This means that different pump and / or drive-related variables can be recorded, determined and monitored. In particular, a monitoring of the voltage amplitudes of the frequency converter voltage is provided, whereby a malfunction of the frequency converter is detected. The purpose of this is provided in the switching device provided pulse width modulation monitoring module. Its signal indicates the absence of one or more voltage phases and is evaluated by the microcomputer, whereby an additional motor protection is achieved.
  • the switching device may comprise operating / input means and / or display / output means. Examples of operating / input means include input keys, dip switches, signal inputs, as examples of display / output means display, multi-color LEDs, signal and relay outputs.
  • a synchronization unit determines the respective phase and frequency positions between two voltage networks with fixed and / or variable frequency, and with equality of phase and frequency positions, a synchronization signal flows to a microcomputer and switches over a centrifugal pump unit. This allows a switch from one voltage network to another voltage network, whereby the formation of undesired pressure surges or pulsations in the pipeline system is avoided.
  • the switching device may comprise means for controlling a frequency converter.
  • a switching device control start, stop and / or the frequency of a frequency converter.
  • a centrifugal pump assembly with at least two centrifugal pump units, each consisting of pump and motor, equipped with a switching device according to the invention.
  • the switching device is electrically connected to the drive motors, in particular via a respective terminal box located on a drive motor.
  • the switching device is arranged on one of the drive motors.
  • the motor-mounted switching device can be attached by means of a holding device to the drive motor.
  • the switching device is formed as part of one of the drive motors.
  • One embodiment relates to a centrifugal pump arrangement with a frequency converter connected to the switching device, in particular arranged on the switching device and / or on a drive motor.
  • a double pump arrangement with two centrifugal pump units with a switching device to which two drive motors are connected and four switching means to switch the drive motors between the voltage networks, wherein the switching device on one of the two drive motors and the frequency converter to the switching device and / or the other of the two drive motors disposed is.
  • a special double pump arrangement is in particular a twin pump arrangement, in which the pumps have a common pump housing with a common suction and / or discharge nozzle, in the context of the invention.
  • centrifugal pump arrangements with each other and / or with other centrifugal pump arrangements.
  • a plurality of switching devices can be used, each of which switches at least two centrifugal pump units to the voltage networks.
  • a combination with centrifugal pump units which are equipped with another switching device that switches one or more centrifugal pump units, is provided.
  • a combination is provided with centrifugal pump units, which with a switching device according to the WO 2007/118706 A1 , which can perform switching operations for each one centrifugal pump unit, are equipped.
  • These single pump switching devices are each capable of switching the fixed frequency voltage network or the variable frequency voltage network to the drive motors to which they are arranged.
  • a bus system connects the switching devices in an advantageous manner, whereby the microcomputer are in operative connection with each other.
  • one of the switching devices is configured as a priority switching device.
  • the centrifugal pump units can be arranged in a flexible manner to a multi-pump system, such as to a pressure booster, in which the pumps - controlled by the priority switching device - if necessary, switched on or off.
  • a multi-pump system such as to a pressure booster
  • the double pump switching device can be designed as a priority switching device and control the other switching devices.
  • An advantageous method for operating a centrifugal pump arrangement provides that the microcomputer evaluates one or more input signals and controls the connection or disconnection of the centrifugal pump units.
  • the microcomputer of the switching device can control the activation and deactivation of the centrifugal pump units.
  • the microcomputer can also control the change from a voltage network connected to a drive motor to another voltage network.
  • the drive motor connections and / or the drive motors are individually connected to one of the voltage networks depending on the system requirements.
  • the microcomputer with signals of a device for generating the second voltage network controls the operation of one or more centrifugal pump units.
  • This can be, for example, a request signal for a further centrifugal pump assembly, a ready signal or an alarm signal.
  • the microcomputer controls a device for generating the second voltage network, in particular a frequency converter. It is envisaged that the microcomputer controls the device for generating the second voltage network or the frequency converter with a start or stop signal.
  • the switching device performs pump and / or drive-relevant monitoring and / or diagnostic functions.
  • the microcomputer is capable of acquiring, processing and storing measured values.
  • centrifugal pump assembly As a basis for monitoring and / or diagnosing a centrifugal pump assembly histograms are provided with cumulative over the life of a centrifugal pump unit performance and / or flow values. As a result of the invention, relevant data of several centrifugal pump units are available at any time and directly at a centrifugal pump arrangement.
  • An advantageous method provides that the output voltage of the device for generating the second voltage, in particular the frequency converter, is monitored.
  • a pulse width modulation monitoring is performed.
  • the microcomputer evaluates a result of this monitoring, which is present for example in the form of a binary pulse width modulation signal, and takes it into account in the control of the switching means. This avoids, for example, that a drive motor is operated with a frequency converter voltage with a missing phase. In addition to monitoring the voltage of the second voltage network thus an effective motor protection is realized.
  • one of the switching devices may be configured as a priority switching device.
  • the microcomputer of a switching device can control the activation and deactivation of further centrifugal pump units and / or request their connection or disconnection via the bus system.
  • the microcomputer preferably uses a synchronization signal to switch the drive motors between different voltage networks at the same phase and frequency positions of the voltage networks. Switchover-related voltage differences, current peaks and resulting pressure surges in the pipeline system are thereby prevented. A switchover of the drive motors to another voltage network can take place in such a way that in the switching device, the voltage network connected to a drive motor is disconnected only after the connection of the other voltage network.
  • the Fig. 1 shows a double pump assembly 1 with two centrifugal pump units 2, 3 consisting of centrifugal pumps 4, 5 and drive motors 6, 7.
  • the drive motors 6, 7 are equipped with terminal boxes 8, 9.
  • a switching device 10 is arranged or attached.
  • the switching device 10 has a connection 12 for a first voltage network and a connection 13 for a second voltage network.
  • the terminals 12 and 13 are designed for the connection of multi-phase voltage networks, in particular three-phase voltage networks, multipole, in particular three-pole.
  • lines 14 and 15 are connected to the connections 12 and 13 for connection to the voltage networks.
  • the switching device 10 has a microcomputer and switching means which switch such that the drive motor 6 can be connected to the connection 12 for the first voltage network and / or to the connection 13 for the second voltage network.
  • the switching device 10 has for this purpose a connection 16. About a connected thereto and the terminal box 8 line 17, the switching device 10 is electrically connected to the drive motor 6.
  • the switching device 10 has a further connection 18 for a further drive motor 7, which is connected by means of a connected to the terminal box 9 line 19 with the switching device 10.
  • additional switching means this is able to switch the current flow for the further drive motor 7 such that the further drive motor 7 to the terminal 12 for the first voltage network and / or to the terminal 13 for the second voltage network is connectable.
  • a frequency converter 20 is arranged or attached.
  • the frequency converter 20 is electrically supplied from the switching device 10.
  • the frequency converter 20 generates a second voltage network with a variable frequency.
  • the output voltage of the frequency converter 20 is guided by means of a terminal 24 and a line 15 to the terminal 13 of the switching device 10.
  • the switching device 10 receives a switching signal or a continuous input signal, whereby the microcomputer integrated in the switching device 10 receives a switching request of a system.
  • This may be, for example, a pressure switch which signals an overshoot or undershoot of a specific pressure value of a pressure booster system.
  • the signal input is suitable both for a switching signal and for a continuous input signal. This is realized by a corresponding input circuit within the switching device 10.
  • the input assignment can be parameterized by an operating means and / or can be selected by dip-switches.
  • the switching device 10 has further signal inputs and / or outputs, for example for communication with the frequency converter 20th
  • the Fig. 2 shows a double pump assembly 1 with the centrifugal pump units 2, 3 of the Fig. 1 with the pumps 4, 5 and the drive motors 6, 7.
  • the drive motors 6, 7 connected to the terminal boxes 8 and 9 and the terminals 16 and 18, respectively, lines 17 and 19 connected to the arranged on the drive motor 6 switching device 10.
  • the switching device 10 in turn has a connection 12 for a first, multi-phase voltage network and a connection 13 for a second, multi-phase voltage network.
  • Correspondingly designed lines 14 and 15 are connected to the connections 12 and 13 for connection to the voltage networks.
  • the frequency converter 20 is arranged on the drive motor 7.
  • the output voltage of the frequency converter 20 is guided by means of connection 24 to the frequency converter 20 and the line 15 to the terminal 13 of the switching device 10.
  • the frequency converter 20 is electrically supplied by means of line 23, which is connected to terminal 21 of the switching device 10 and to terminal 22 of the frequency converter 20.
  • FIGS. 1 and 2 Arrangements shown are also used in a twin pump assembly use, in which two centrifugal pumps have a common pump housing with a common suction and / or discharge nozzle.
  • the switching device 10 is arranged, attached or mounted on one of the drive motors. According to the invention, the switching device may also be formed as part of one of the drive motors. It is understood that according to the invention, instead of a frequency converter, another speed control device or another device for generating a second voltage network, such as a network backup system, can be used.
  • Fig. 3 shows a schematic diagram of a switching device 10. For reasons of clarity multiphase lines bundled therein are shown as a line. In a corresponding manner multipole switching means are shown simplified. Via terminal 12, the switching device 10 is connected to a polyphase, here three-phase voltage network fixed frequency. At the switching device 10, two drive motors 6 and 7 are connected to terminals 16 and 18. Via terminals 13 and 21, the switching device 10 is connected to a frequency converter 20 having terminals 22 and 24. Two each in the switching device 10 located and separately switchable switching means 31, 33 and 32, 34 switch the current flow to the drive motors 6 and 7 such that either the voltage of the first voltage network or the voltage of the frequency converter 20 is applied to the drive motor 6 and 7 respectively.
  • the switching means 31 and 33 are the drive motor 6, the switching means 32 and 34 associated with the drive motor 7. Instead of the four switchable switching means 31, 32, 33, 34 per drive motor 6, 7 and a switching means in the manner of a changeover switch can be used.
  • the switching means 31 connects in its closed state via a line 35 the connection 12 for the voltage network fixed frequency with the drive motor terminal 16 and thus leads the fixed frequency voltage to the drive motor 6.
  • the switching means 33 connects in the closed state via a line 37th the connection 13 for the second voltage network with the drive motor terminal 16. In this way, the voltage of variable frequency, so the output voltage of the frequency converter 20, connectable to the drive motor 6.
  • the drive motor 6 is selectively connectable to one of the two voltages.
  • the switching means 32 connects in the closed state via a line 36 the connection 12 for the voltage network fixed frequency with the other drive motor terminal 18 and leads the voltage network fixed frequency to the other drive motor 7.
  • the output voltage of the frequency converter 20 via the switching means 34 on the further drive motor 7 guided by the closed switching means 34 connects the terminal 13 via the line 38 to the terminal 18.
  • the drive motor 7 is selectively connectable to one of the two voltages.
  • switching means 31 32 mechanical contactors or semiconductor contactors can be used. But there are also other components used in engine branches and their combinations possible, including arrangements with motor protection switches, overload relays and / or contactor combinations for star-delta start-up or soft starters.
  • switching means 33, 34 are preferably mechanical contactors are used.
  • the switching means 31, 32, 33, 34 are controlled by a microcomputer integrated into the switching device 10. This is done by means indicated by arrows control lines.
  • Each of the drive motors 6, 7 is thus, if necessary, connectable to the voltage network of fixed frequency or to the voltage network of variable frequency.
  • the switching device 10 has means for passing the fixed frequency voltage. Via a line 39, this voltage is fed to the terminal 21.
  • the terminal 21 is used for the electrical supply of the frequency converter 20 from the switching device 10 out. This saves a separate supply line, otherwise available on the installation side.
  • the Fig. 4 shows somewhat more detailed the circuit design of a switching device 10. For reasons of clarity, the multiphase lines are bundled here and the switching means shown simplified.
  • the switching device 10 has a microcomputer 40.
  • the microcomputer 40 is electrically powered by a power supply.
  • a signal input 46 is connected to the microcomputer 40.
  • the signal input 46 serves to connect a means for signaling a switching request.
  • a pressure switch may be connected, which supplies a switching signal when falling below or exceeding a certain pressure value at its installation location, for example in a pressure booster.
  • control lines 41, 42, 43, 44 the four switching means 31, 32, 33, 34 are connected to the microcomputer and are controlled by this.
  • a switching request such as a pump start request
  • the microcomputer 40 of the switching device 10 controls the connection and disconnection of the drive motors 6 and 7 of the centrifugal pump units by connecting the drive motors 6 and 7 with the voltage networks or separates them.
  • the microcomputer 40 may also control the change from a voltage network connected to a drive motor to another voltage network.
  • the microcomputer 40 drives the frequency converter 20 by means of a communication line 47.
  • the switching device 10 is thus able to control the frequency converter 20 by means of a start or stop command. Via the communication line 47, a ready and / or alarm signal from the frequency converter 20 to the microcomputer 40 led.
  • the frequency converter 20 can request the connection of a further centrifugal pump unit in the microcomputer 40 as a function of system conditions.
  • the switching device has a connection 50 for connecting the communication line 47.
  • the communication line 47 may be a plurality of control lines or a bus system.
  • the switching device 10 contains a means 51 for detecting the output voltage of the frequency converter 20.
  • the means 51 may be a pulse width modulation detector, which constantly monitors the amplitudes of the three voltage phases and the microcomputer 40 is a binary signal, according to a good or fault condition, provides. With the pulse width modulation detector 51, for example, a phase failure at the output 13 of the frequency converter 20 can be detected.
  • the switching device 10 has a display and control unit 53, which is connected to the microcomputer 40.
  • the display and control unit 53 10 different engine operating modes of the drive motors 6 and 7 are adjustable to the switching device.
  • the display and operating unit 53 has for each drive motor 6, 7 on an adjustment.
  • the set engine operating modes are converted by the microcomputer 40 by controlling the switching means 31, 32, 33, 34 in corresponding switching operations.
  • display means per drive motor are used as LEDs.
  • the various operating states of the drive motors 6 and 7, such as "motor off", “motor on the frequency converter", or "motor on the grid” are displayed.
  • the switching device 10 may further comprise a mode switch, with the other modes are selectable.
  • switching delay times and / or different pump change modes can be selected.
  • the choice of operation is also adjustable by appropriate program parameters in the microcomputer 40.

Claims (18)

  1. Dispositif commutateur disposé au niveau d'un groupe de pompe centrifuge, le dispositif commutateur commutant, à l'aide d'au moins un moyen de commutation commandé par un micro-ordinateur, un moteur d'entraînement et étant pourvu d'une borne pour un premier réseau d'alimentation électrique de fréquence fixe et d'une borne pour un deuxième réseau d'alimentation électrique de fréquence variable, le micro-ordinateur étant intégré dans le dispositif commutateur, le dispositif commutateur étant pourvu d'au moins une entrée de signaux et le micro-ordinateur étant relié à l'entrée de signaux, le dispositif commutateur commutant le courant électrique prévu pour une borne de moteur d'entraînement disposée au niveau du dispositif commutateur et/ou commutant le moteur d'entraînement de telle sorte que la borne de moteur d'entraînement et/ou le moteur d'entraînement peuvent être reliés à la borne prévue pour le premier réseau d'alimentation électrique et/ou à la borne prévue pour le deuxième réseau d'alimentation électrique, le dispositif commutateur (10) comportant au moins une borne (18) supplémentaire pour un moteur d'entraînement (7) supplémentaire et au moins un moyen de commutation (32, 34) supplémentaire commutant de telle sorte le courant électrique pour la borne de moteur d'entraînement (18) supplémentaire et/ou pour le moteur d'entraînement (7) supplémentaire que la borne de moteur d'entraînement (18) supplémentaire et/ou le moteur d'entraînement (7) supplémentaire peuvent être reliés à la borne prévue pour le premier réseau d'alimentation électrique (12) et/ou à la borne prévue pour le deuxième réseau d'alimentation électrique (13), caractérisé en ce que le dispositif commutateur (10) comporte des moyens d'acheminement du premier réseau d'alimentation électrique et une borne d'alimentation électrique d'un appareil pour produire le deuxième réseau d'alimentation électrique (21).
  2. Dispositif commutateur selon la revendication 1, caractérisé en ce que les moyens de commutation (31, 32, 33, 34) commutent les moteurs d'entraînement (6, 7) entre les réseaux d'alimentation électrique à fréquence fixe et variable.
  3. Dispositif commutateur selon la revendication 1 ou 2, caractérisé en ce que le dispositif commutateur (10) est relié à un convertisseur de fréquence (20) au niveau de la borne prévue pour le deuxième réseau d'alimentation électrique (13) et au niveau de la borne prévue pour l'alimentation électrique de l'appareil pour produire la deuxième tension (21), en ce que respectivement deux moyens de commutation (31, 32, 33, 34) commutent un moteur d'entraînement (6, 7) entre les réseaux d'alimentation électrique et que le micro-ordinateur (40) est relié au convertisseur de fréquence (20).
  4. Dispositif commutateur selon la revendication 3, caractérisé en ce que deux moteurs d'entraînement (6, 7) sont raccordés au niveau du dispositif commutateur (10) et que quatre moyens de commutation (31, 32, 33, 34) commutent les moteurs d'entraînement (6, 7) entre les réseaux d'alimentation électrique.
  5. Dispositif commutateur selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le dispositif commutateur (10) comporte des moyens pour des fonctions de surveillance et/ou de diagnostic.
  6. Dispositif commutateur selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le dispositif commutateur (10) comporte des moyens pour commander un convertisseur de fréquence (20).
  7. Agencement de pompe centrifuge avec au moins deux groupes de pompe centrifuge (2, 3) composés d'une pompe (4, 5) et d'un moteur d'entraînement (6, 7), caractérisé par un dispositif commutateur (10) selon l'une quelconque des revendications 1 à 6, le dispositif commutateur (10) étant relié sur le plan électrique aux moteurs d'entraînement (6, 7), notamment via un bornier (8, 9) se trouvant respectivement au niveau d'un moteur d'entraînement (6, 7).
  8. Agencement de pompe centrifuge selon la revendication 7, caractérisé en ce que le dispositif commutateur (10) est disposé au niveau d'un des moteurs d'entraînement (6, 7) et/ou est réalisé sous la forme d'un composant d'un des moteurs d'entraînement (6, 7).
  9. Agencement de pompe centrifuge selon la revendication 7 ou 8, caractérisé par un convertisseur de fréquence (20) raccordé au dispositif commutateur (10), notamment disposé au niveau du dispositif commutateur (10) et/ou d'un moteur d'entraînement (6, 7).
  10. Agencement à double pompe avec deux groupes de pompe centrifuge (2, 3) composés d'une pompe (4, 5) et d'un moteur d'entraînement (6, 7), caractérisé un dispositif commutateur (10) selon la revendication 4, le dispositif commutateur (10) étant disposé au niveau d'un des deux moteurs d'entraînement (6, 7) et le convertisseur de fréquence (20) étant disposé au niveau du dispositif commutateur (10) ou au niveau de l'autre des deux moteurs d'entraînement (6, 7).
  11. Agencement à double pompe selon la revendication 10, caractérisé en ce que les pompes (4, 5) comportent un carter de pompe commun avec une tubulure d'aspiration et/ou de pression commune.
  12. Procédé d'utilisation d'un agencement de pompe centrifuge selon l'une quelconque des revendications 7 à 11, caractérisé en ce que le micro-ordinateur (40) analyse un ou plusieurs signaux d'entrée et commande la connexion ou déconnexion des groupes de pompe centrifuge (2, 3).
  13. Procédé selon la revendication 12, caractérisé en ce que le micro-ordinateur (40) commande le changement d'un réseau d'alimentation électrique relié à un moteur d'entraînement (6, 7) à un autre réseau d'alimentation électrique.
  14. Procédé selon la revendication 12 ou 13, caractérisé en ce que le micro-ordinateur (40) commande le fonctionnement d'un ou plusieurs groupes de pompe centrifuge (2, 3) avec des signaux d'un appareil servant à produire le deuxième réseau d'alimentation électrique, notamment d'un convertisseur de fréquence (20).
  15. Procédé selon la revendication 12, 13 ou 14, caractérisé en ce que le micro-ordinateur (40) commande un appareil pour produire le deuxième réseau d'alimentation électrique, notamment un convertisseur de fréquence (20).
  16. Procédé selon l'une quelconque des revendications 12 à 15, caractérisé en ce que le dispositif commutateur (10) exécute des fonctions de surveillance et/ou de diagnostic pour les pompes et/ou l'entraînement.
  17. Procédé selon la revendication 16, caractérisé en ce que le micro-ordinateur (40) exécute une surveillance de la puissance.
  18. Procédé selon la revendication 16 ou 17, caractérisé en ce que la tension de sortie de l'appareil est surveillée pour produire le deuxième réseau d'alimentation électrique, notamment le convertisseur de fréquence (20).
EP10760992.7A 2009-09-30 2010-09-28 Unité d'alimentation électrique de turbo pompe avec dispositif commutateur Not-in-force EP2483564B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009043556A DE102009043556B3 (de) 2009-09-30 2009-09-30 Kreiselpumpenaggregat mit Schaltvorrichtung
PCT/EP2010/064337 WO2011039166A1 (fr) 2009-09-30 2010-09-28 Ensemble de pompe centrifuge avec dispositif de commutation

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EP2483564A1 EP2483564A1 (fr) 2012-08-08
EP2483564B1 true EP2483564B1 (fr) 2016-11-16

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EP10760992.7A Not-in-force EP2483564B1 (fr) 2009-09-30 2010-09-28 Unité d'alimentation électrique de turbo pompe avec dispositif commutateur

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EP (1) EP2483564B1 (fr)
BR (1) BR112012006426A8 (fr)
DE (1) DE102009043556B3 (fr)
WO (1) WO2011039166A1 (fr)

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JP6581806B2 (ja) * 2015-05-18 2019-09-25 株式会社川本製作所 ポンプユニット、給水装置
DE102016119207B4 (de) * 2016-10-10 2020-03-12 Nolta Gmbh Pumpensteuerungseinrichtung, Pumpeinrichtung, Abwasseraufbereitungsanlage und ein Verfahren zum Betrieb von wenigstens zwei Pumpen

Citations (1)

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Publication number Priority date Publication date Assignee Title
US20060072262A1 (en) * 2004-09-28 2006-04-06 American Power Conversion Corporation System and method for allocating power to loads

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DE2756916C2 (de) * 1977-12-21 1985-09-26 Danfoss A/S, Nordborg Vorrichtung zur Einrichtung der Fördermenge einer Wasserwerk-Pumpenanordnung
US5522707A (en) * 1994-11-16 1996-06-04 Metropolitan Industries, Inc. Variable frequency drive system for fluid delivery system
DE19511170A1 (de) * 1995-03-28 1996-10-02 Wilo Gmbh Doppelpumpe mit übergeordneter Steuerung
DE19742799B4 (de) * 1997-09-27 2006-10-05 Ksb Ag Automatische Anpassung des Stellbereiches eines Druckregelkreises in Mehrpumpenanlagen
DE10331578B4 (de) * 2003-07-11 2006-01-12 Spechtenhauser Pumpen Gmbh Abwasserpumpensystem mit mehreren Kanalradpumpenaggregaten
JP4431519B2 (ja) * 2005-04-11 2010-03-17 日立Ｇｅニュークリア・エナジー株式会社 原子炉冷却材の再循環ポンプ電源装置
DE102006018025A1 (de) * 2006-04-19 2007-10-25 Ksb Aktiengesellschaft Kreiselpumpenaggregat mit Schaltvorrichtung

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US20060072262A1 (en) * 2004-09-28 2006-04-06 American Power Conversion Corporation System and method for allocating power to loads

Also Published As

Publication number Publication date
WO2011039166A1 (fr) 2011-04-07
EP2483564A1 (fr) 2012-08-08
DE102009043556B3 (de) 2010-12-23
BR112012006426A2 (pt) 2016-04-19
BR112012006426A8 (pt) 2018-07-31

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