EP2808548B1 - Verfahren zum Sammeln von Kondensat innerhalb einer Vorrichtung, Vorrichtung mit einem Kondensatsammelsystem und Motor-Pumpe-Aggregat für das Kondensatsammelsystem - Google Patents

Verfahren zum Sammeln von Kondensat innerhalb einer Vorrichtung, Vorrichtung mit einem Kondensatsammelsystem und Motor-Pumpe-Aggregat für das Kondensatsammelsystem Download PDF

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EP2808548B1
EP2808548B1 EP13425078.6A EP13425078A EP2808548B1 EP 2808548 B1 EP2808548 B1 EP 2808548B1 EP 13425078 A EP13425078 A EP 13425078A EP 2808548 B1 EP2808548 B1 EP 2808548B1
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EP
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Prior art keywords
discharge pump
condensate discharge
condensate
collection tank
actuating
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EP13425078.6A
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English (en)
French (fr)
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EP2808548A1 (de
Inventor
Elio Marioni
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Askoll Holding SRL
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Askoll Holding SRL
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Priority to EP13425078.6A priority Critical patent/EP2808548B1/de
Priority to CN201410231281.1A priority patent/CN104296357B/zh
Priority to US14/289,124 priority patent/US9593685B2/en
Publication of EP2808548A1 publication Critical patent/EP2808548A1/de
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    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/24—Condensing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate

Definitions

  • the present invention relates, in its most general aspect, to a method for collecting condensate inside an apparatus equipped with a condensate collection system, for example a tumble dryer or an air conditioner.
  • a condensate collection system for example a tumble dryer or an air conditioner.
  • the present invention also relates to an apparatus equipped with a condensate collection system and to a motor-pump assembly specifically intended to operate a condensate collection system inside an apparatus of the above-mentioned type.
  • the invention is intended therefore for the sector of laundry washing or washing/drying machines, or for the sector of air conditioners, in particular portable air conditioners equipped with an internal condensate collection system.
  • the invention falls within the technological sector of electric household appliances.
  • condensation water resulting either from a process for conditioning the ambient air, as in the case of portable air conditioners, or from a tumble-drying cycle, as in the case of drying or washing/drying machines.
  • a condensate collection system 90 which is commonly used in apparatuses 500 of the above-mentioned type, and disclosed for instance in DE-U-8912184 , is shown in Figure 2 of the present application.
  • the condensation water resulting from operation of the apparatus 500 for example a portable air conditioner or a tymble dryer, flows due to gravity into a bottom tank 2.
  • the condensation water is then cyclically conveyed, via a suitable condensate discharge pump 50, to a higher tank 3 which has a drawer-like configuration and which can easily be emptied by the user.
  • the condensate discharge pump 50 is typically controlled directly by the main control board 60 of the apparatus 500. Generally, the condensate discharge pump 50 is activated at regular intervals during operation of the apparatus and, whenever activated, is kept in operation for a predetermined time interval sufficient to empty the bottom tank 2.
  • an overflow system 4 is provided so that any excess liquid is returned to the bottom tank 2.
  • a float-type level sensor 5 is also housed inside the bottom tank. When a threshold level is reached, the float sensor forwards a signal to the main control board 60 which in turn stops the apparatus 500 and signals the full condition to the user.
  • This float sensor in fact generates additional costs with regard to manufacture of the apparatus, said costs being due both to the component itself and to the need to connect it to the main control board via a specific cabling.
  • the technical problem forming the basis of the present invention is therefore that of devising a method for collecting the condensate inside an apparatus which overcomes the drawbacks of the previously identified prior art and which in particular avoids the need to use a float-type level sensor in order to detect filling of the collection system.
  • the method outlined above uses a method for detecting the load of the condensate discharge pump which allows operation thereof to be interrupted when the low load indicates that the bottom collection tank is empty.
  • Signalling of a full condition of the condensate collection system preferably causes the apparatus to be halted.
  • the low load condition may correspond to operation of the condensate discharge pump under no load or operation of the condensate discharge pump in air/water conditions.
  • said step of detecting the low load condition of the condensate discharge pump may be directly performed by a local control board installed on the condensate discharge pump itself, preferably without the use of sensors.
  • the condensate discharge pump may be actuated by a permanent- magnet, synchronous, electric motor, preferably of the mono-phase type, said step of actuating said condensate discharge pump comprising a step of driving said electric motor by means of phase regulation control so as to obtain in feedback a condition of minimum phase shift between current supplying the windings of the electric motor and generated counter-electromotive force, said step of detecting a low load condition of the condensate discharge pump involving the verification of the firing angle applied during phase regulation control, where said low load condition is indicated by a maximum firing angle being exceeded.
  • This step of performing a measurement of the actuating time of the condensate discharge pump may also be carried out by the local control board; in that case, the entire control architecture of the condensate collection system is advantageously integrated in the condensate discharge pump.
  • the step of performing a measurement of the actuating time of the condensate discharge pump may be carried out by a main control board of the apparatus also intended to control other electronic devices installed in the apparatus.
  • the actuating state of the condensate discharge pump may be determined without using sensors, for example by means of a two logic state current measurement along the circuit section which supplies the electric motor of the condensate collection pump.
  • said step of actuating said condensate discharge pump may be performed cyclically during operation of the apparatus, for example at regular intervals, where preferably these intervals correspond to the estimated time for filling of the bottom collection tank during operation of the apparatus.
  • the maximum actuating time of the condensate discharge pump defined above is preferably equal to or greater than the actuating time of the condensate discharge pump needed to empty completely the bottom discharge tank in the fully filled condition.
  • a motor-pump assembly comprising a condensate discharge pump, a permanent-magnet single-phase synchronous electric motor intended for actuation thereof, and a local control board intended to drive said electric motor and to:
  • 500 identifies a generic apparatus provided internally with a condensate collection system 90.
  • the apparatus 500 may take the form of various devices which are different from each other in terms of type and function, but which have the common feature that they need to collect a condensation liquid resulting from the more or less continuous operation thereof.
  • the apparatus 500 in the form of a laundry drying machine; it is understood, however, that a collection system 90 with similar operating modes may be applied to other apparatusus for domestic and/or industrial use, such as a portable air conditioner,
  • the condensate collection system 90 of the laundry drying machine 500 has, in a known manner, a bottom collection tank 2 and a top collection tank 3 which are in fluid communication with each other.
  • the bottom collection tank 2 is arranged at the bottom of the laundry drying machine, underneath a heat exchanger. Inside the exchanger, the steam coming from the laundry drum is cooled and converted into condensation water that gradually fills the underlying bottom collection tank 2.
  • a condensate discharge pump 50 is provided in order to convey the accumulated condensed liquid from the bottom of said bottom collection tank 2 to the top collection tank 3 via a delivery tube 6.
  • an overflow system 4 which returns, via a return tube 7, the condensation liquid exceeding a threshold level from the top collection tank 3 to the bottom collection tank 2.
  • This overflow system 4 may be defined by a spillway formed in the top collection tank 3; when the condensation liquid reaches the spillway, it returns into the bottom collection tank 2 via the return pipe 7 by means of simple gravitational action.
  • the condensate discharge pump 50 is actuated by means of an electric motor 1 which, in the case in question, takes the form of a permanent-magnet single-phase synchronous motor.
  • An electronic device 20 which is preferably in the form of a local control board, is associated with the electric motor 1 and is intended to drive it by means of phase control or cutting.
  • the condensate discharge pump 50, the electric motor 1 and the local control board 20 are incorporated in a motor-pump assembly that can be handled separately, of the type described in patent application EP 2,439,840 filed in the name of the same applicant.
  • the local control board 20 which may be seen in detail in Figure 4 , comprises a static switch 21, in this specific case a TRIAC switch, intended to cut the current supplied by an AC electrical grid 22 and directed to the windings supplying power to the electric motor 1,
  • the TRIAC switch 21 is connected to a PWM output 33 of a processing unit 30, which preferably takes the form of a microprocessor.
  • the local control board 20 has a portion for synchronisation with the grid 35 which sends to the processing unit 30 a grid synchronisation signal 25, i.e. a signal having a unitary value when the voltage of the power supply has positive values, and a zero value when the latter has negative values; the timer for controlling the PWM output 33 is advantageously synchronised with the grid synchronising signal.
  • the local control board 20 has a power supply portion 36 of the processing unit 30, also intended to supply said unit with a voltage reference signal.
  • the processing unit 30 has a first input 31, which receives a grid voltage signal 23, and a second input 32, which instead receives a voltage signal across the switch 24.
  • the processing unit 30 is able to carry out an indirect measurement of the counter-electromotive force generated by the synchronous motor 1, obtained as the difference between the grid voltage signal 23 and the voltage signal on the switch 24, at the moments when the current is zero.
  • the processing unit 30 detects said zero current condition by again by evaluating the voltage signal across the switch 24, and in particular by ensuring that this signal differs sufficiently from the zero value.
  • the laundry drying machine 500 comprises a main control board 60 intended to control all the electronic functions of the machine.
  • This main control board 60 is arranged in a front top position corresponding to the control panel of the laundry drying machine 500, i.e. it is situated at a distance from the motor-pump assembly which is instead located in the vicinity of the bottom collection tank 2.
  • the main control board 60 is connected by means of suitable cabling 8 to the local control board 30 of the motor-pump assembly.
  • the cabling may comprise, in addition to the pump power supply wiring, also one or more signal cables; these cables are, however, not strictly necessary, as will become clear from the following description.
  • This method preferably envisages acyclical actuation of the condensate discharge pump 50 during operation of the laundry-drying machine 500. Then a waiting step 100 is involves to allow a wait time T 1 to elapse between one actuating operation of the condensate discharge pump 50 and the next. This wait time a T 1 is determined on the basis of the estimated filling time for the bottom collection tank 2.
  • cyclical actuation of the condensate discharge pump 50 is not necessarily envisaged for the entire period of operation of the laundry drying machine, but concerns only a number of operating cycles during which condensation is produced inside the machine.
  • the wait time T 1 may be between 100 s and 160 s.
  • the method according to the present invention includes a start-up step (step 200 in Figure 3 ) of the electric motor 1, which actuates the condensate discharge pump 50.
  • This start-up step is preferably performed in the manner described in patent application EP 2,439,840 and is briefly described below.
  • the start-up step comprises four successive sub-steps: alignment, waiting, starting, transition towards steady-state operation.
  • the alignment sub-step is intended to bring the rotor of the electric motor 1 into a predefined starting position.
  • the processing unit 30 controls the TRIAC switch 21 so as to supply the power supply windings of the motor with a series of current pulses generated only during a given half-period, which is positive or negative depending on the selected starting position, of the voltage signal of the electrical grid 22.
  • the TRIAC switch must therefore be switched on only when the grid synchronising signal 23 assumes a positive value (or negative value depending on the selected half-period).
  • the subsequent waiting sub-step is intended to allow damping of any oscillations of the rotor of the electric motor 1. At the end of the waiting step, it is thus certain that the rotor has stopped in the predefined starting position.
  • the subsequent starting sub-step is intended to ensure the actual starting of the electric motor 1.
  • the processing unit 30 generates a series of current pulses of increasing intensity (adjusted by varying the firing angle ⁇ during phase control), these pulses being generated this time in the half-period of the voltage signal of the electrical grid 22 opposite to that of the pulses of the alignment step.
  • the implemented control method carries out the initial start-up sub-steps again.
  • the last sub-step is intended to drive the motor until the synchronism speed is reached.
  • the processing unit 30 controls the motor according to a specific firing logic which tends to keep the TRIAC switch 21 conducting only when the transit of current in the power supply windings of the electric motor 1 determines a drive torque in the direction of rotation of the rotor.
  • the TRIAC switch 21 is switched on when both of the following conditions occur:
  • Such a condition is assessed by means of a measurement of the phase shift between phase current and voltage. If this phase shift remains more or less constant for a given number of consecutive periods, the synchronism condition is considered to have been reached. If the synchronism condition is not reached within a predefined time period, the method carries out the start-up step again from the beginning.
  • the method envisages a step of driving the synchronous electric motor 1 at steady state by means of phase control, i.e. by varying the firing angle ⁇ which determines the delay in switching on of the TRIAC switch with respect to the change of sign of the grid voltage.
  • Phase control is gradually introduced, keeping the conditions a) and b) upon switching-on of the switch 21 applied in the aforementioned transition sub-step.
  • the firing angle ⁇ is feedback-controlled in order to optimise the energy performance of the electric motor 1.
  • the feedback control is performed by identifying the ideal operating condition of the motor as being one in which the counter-electromotive force passes through zero at a mid-point 80a of the zero current plateau 80 set by closing of the TRIAC switch 21.
  • the extension of the zero current plateau 80 and the relative position of its mid-point 80a depend on the value of the firing angle ⁇ used for each current half-period.
  • the sought-after condition corresponds to zeroing of the phase shift between the power supply current of the windings and the generated counter-electromotive force of the synchronous motor 1, a condition that, as is known, ensures that the energy efficiency of the synchronous motor itself is optimised (disregarding the core losses).
  • the processing unit 30 is able to evaluate how the behaviour of the motor differs from the ideal operating condition, consequently correcting in feedback the firing angle ⁇ of the TRIAC switch 21.
  • Figure 5 illustrates the temporal progression of the counter-electromotive force e of the grid voltage T and the stator current i during steady-state operation of the synchronous motor 1; the firing angles used in the first half-periods are indicated by the Greek letter ⁇ followed by progressively increasing subscripts.
  • the method according to the present invention continuously checks that the synchronous motor 1 has not reached a low load condition which indicates emptying of the bottom collection tank 2 (check step 400 in Figure 3 ).
  • the condensate discharge pump 50 operates under no load or in air-water conditions, with a consequent reduction in load compared to full flow conditions.
  • the decrease in load causes a great increase in the need to cut the current in the feedback control algorithm.
  • the method verifies in each half-period that the firing angle ⁇ required by the feedback control does not exceed a maximum firing angle value a lim , indicative of operation of the pump in air-water conditions, or even of no-load operation, depending on the maximum value chosen.
  • the bottom collection tank 2 is considered to be empty and actuation of the condensate discharge pump 50, or the electronic device 20, interrupts the supply of power to the windings of the synchronous motor 1 (step 550 in Figure 3 ).
  • the temporal variable that measures the wait time T 1 between one actuating operation of the condensate discharge pump 50 and the next is then reset and the method is cyclically repeated starting from the aforementioned wait step (step 100 in Figure 3 ).
  • the method according to the present invention checks in real time that the condensate collection system 90 has not reached a completely full condition.
  • the method comprises a further check step (check step 600 in Figure 3 ) in which it checks whether the actuating time T 2 of the condensate discharge pump 50 has not reached or exceeded a maximum time T 2lim , indicatively equal to or greater than the time needed for a complete emptying of the bottom collection tank 2.
  • An excessive duration of the actuating time T 2 is in fact an indication of the complete filling of the top collection tank 3,
  • the condensed liquid introduced by the condensate discharge pump 50 is immediately evacuated by means of the overflow system 4 and thus reintroduced into the bottom collection tank 2.
  • the action of the pump therefore causes continuous recirculation of the condensation liquid, such that the partial load condition which should cause it to switch-off never occurs and the pump remains switched on indefinitely. Therefore the measured actuating time T 2 rapidly exceeds the maximum time T 2lim which, in conditions where the condensate collection system 90 is partly filled, should instead ensure that the bottom collection tank 3 is emptied.
  • the timer intended to measure the actuating time T 2 may be activated at the start of the start-up step or when the condition of synchronism of the motor is reached. This step is indicated by step 250 in Figure 3 .
  • the maximum time T 2max may be between 10 s and 26 s.
  • a diagnostic signal is generated, indicating the fully filled condition of the condensate collection system 90 (step 700 in Figure 3 ), causing for example an indicator lamp to light up on the control panel of the laundry drying machine 500,
  • step 800 in Figure 3 operation of the laundry drying machine 500 is interrupted (step 800 in Figure 3 ).
  • step of checking the actuating time T 2 of the condensate discharge pump 50 may be performed directly by the local control board 20 installed on the motor-pump unit or alternatively by the main control board 500 of the laundry-drying machine 500.
  • the activation time of the condensate discharge pump 50 is directly monitored by the main control board 60 which is able to detect the operating state of the electric motor 1 by performing a two logic state current measurement along the relevant circuit section.
  • a signal cable between the local control board 20 and the main control board 60 is not required.
  • a first advantage consists in the elimination of the float level sensor present in the prior art, with a corresponding reduction in the production and maintenance costs and greater reliability of the system which is no longer subject to malfunctioning of such a sensor,
  • a second advantage consists in the fact that the method for collecting condensate described above results in operation which is optimised from an energy point of view and is relatively silent, operation of the condensate discharge pump being interrupted as soon as the bottom collection tank is emptied.
  • Another advantage relating to the variation of embodiment where checking the activation time is performed by the local control board, consists in the integration of all of the condensate collection system control functions in the motor-pump assembly.
  • Another advantage relating to the variation of embodiment where checking the activation time is performed by the main control board, consists in the elimination of any signal cable between the main control board and the bottom collection tank.

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

Claims (15)

  1. Verfahren zum Sammeln des Kondensats in einer Vorrichtung (500), wobei das Verfahren die folgenden Schritte umfasst:
    - Bereitstellen eines Kondensat-Sammelsystems (90) umfassend: einen unteren Sammelbehälter (2) und einen oberen Sammelbehälter (3); eine Kondensatablaufpumpe (50), dafür vorgesehen, Flüssigkeit von dem unteren Sammelbehälter (2) zu dem oberen Sammelbehälter (3) zu verdrängen; und ein Überlaufsystem (4), welches eine Verdrängung der Flüssigkeit auslöst, die im oberen Sammelbehälter (3) enthalten ist und ein Überlaufniveau übersteigt in den unteren Sammelbehälter (2);
    - Sammeln einer kondensierten Flüssigkeit während des Betriebes der Vorrichtung (500) im unteren Sammelbehälter (2);
    - Betätigung (200, 300) der Kondensatablaufpumpe (50) zur Verdrängung der kondensierten Flüssigkeit von dem unteren Sammelbehälter (2) in den oberen Sammelbehälter (3);
    dadurch gekennzeichnet, dass es weiter die folgenden Schritte umfasst:
    - zeitgleich mit dem Schritt der Betätigung der genannten Kondensatablaufpumpe, (50), Feststellung (400) eines Schwachlastzustandes der Kondensatablaufpumpe (50), wobei die Betätigung der Kondensatablaufpumpe (50) bei der Feststellung des genannten Schwachlastzustandes unterbrochen (550) wird;
    - zeitgleich mit der Betätigung der Kondensatablaufpumpe (50) Durchführen (100, 600) einer Messung der Stellzeit (T2) der Kondensatablaufpumpe (50) mit Anzeigen (700) eines Vollzustandes des Kondensat-Sammelsystems (90), wenn diese Stellzeit (T2) größer gleich eine Höchstzeit (T2lim) ist.
  2. Verfahren nach Anspruch 1, wobei der Schwachlastzustand dem Betrieb der Kondensatablaufpumpe (50) ohne Last entspricht.
  3. Verfahren nach Anspruch 1, wobei der Schwachlastzustand dem Betrieb der Kondensatablaufpumpe (50) bei Luft-Wasser-Bedingungen entspricht.
  4. Verfahren nach einem der vorherigen Ansprüche, wobei der Schritt des Feststellens eines Schwachlastzustandes der Kondensatablaufpumpe (50) durch eine lokale Schalttafel (20) ausgeführt wird, die auf der Kondensatablaufpumpe (50) selbst installiert ist.
  5. Verfahren nach Anspruch 4, wobei der Schritt des Durchführens einer Messung der Stellzeit der Kondensatablaufpumpe (50) auch von der lokalen Schalttafel (20) ausgeführt wird.
  6. Verfahren nach Anspruch 4, wobei der Schritt des Durchführens einer Messung der Stellzeit der Kondensatablaufpumpe (50) von einer Hauptschalttafel (60) der Vorrichtung (500) ausgeführt wird, die dafür vorgesehen ist, auch andere elektronische Geräte in der Vorrichtung (500) zu steuern.
  7. Verfahren nach Anspruch 6, wobei, um eine Messung der Stellzeit (T2) der Kondensatablaufpumpe (50) durchzuführen, der Betriebszustand der Kondensatablaufpumpe (50), mittels einer Spannungsmessung zweier logischer Zustände ermittelt wird.
  8. Verfahren nach einem der vorherigen Ansprüche, wobei der Schritt des Feststellens eines Schwachlastzustandes der Pumpe ein sensorloser Schritt ist.
  9. Verfahren nach einem der vorherigen Ansprüche, wobei die Kondensatablaufpumpe (50) von einem Permanentmagnetsynchronelektromotor (1) betätigt wird, der Schritt des Betriebes der Kondensatablaufpumpe (50) einen Schritt zum Antreiben des Elektromotors (1) durch Phasensteuerung umfasst, um als Resonanz einen Zustand minimaler Phasenverschiebung zwischen dem Strom, der die Wicklungen des Elektromotors (1) versorgt, und der erzeugten entgegengesetzten elektromotorischen Kraft zu erhalten, der Schritt des Feststellens eines Schwachlastzustandes der Kondensatablaufpumpe (50) die Prüfung des Zündwinkels (α), angewandt während der Phasensteuerung, umfasst, wo der Schwachlastzustand durch Überschreitung eines maximalen Zündwinkels (αlim), angezeigt wird.
  10. Verfahren nach Anspruch 9, wobei der Elektromotor (1) ein Einphasen-Permanentmagnetsynchronelektromotor ist.
  11. Verfahren nach einem der vorherigen Ansprüche, wobei der Schritt des Betriebes der Kondensatablaufpumpe (50) während des Betriebes der Vorrichtung (500) zyklisch durchgeführt wird.
  12. Verfahren nach einem der vorherigen Ansprüche, wobei die Betriebshöchstzeit (T2lim) größer gleich die Betriebszeit der Kondensatablaufpumpe (50) ist, die benötigt wird, um den unteren Übergabebehälter (2) im vollständig gefüllten Zustand komplett zu entleeren.
  13. Verfahren nach einem der vorherigen Ansprüche, wobei das Anzeigen eines Vollzustandes des Kondensat-Sammelsystems (90) bevorzugt zum Anhalten (800) der Vorrichtung (500) führt.
  14. Vorrichtung (500) ausgestattet mit einem Kondensat-Sammelsystem (90), umfassend:
    einen unteren Sammelbehälter (2) zum Sammeln der kondensierten Flüssigkeit während des Betriebes der Vorrichtung (500); einen oberen Sammelbehälter (3); eine Kondensatablaufpumpe (50), dafür vorgesehen, Flüssigkeit von dem unteren Sammelbehälter (2) zu dem oberen Sammelbehälter (3) zu verdrängen; und ein Überlaufsystem (4), welches eine Verdrängung der Flüssigkeit auslöst, die im oberen Sammelbehälter (3) enthalten ist und ein Überlaufniveau übersteigt in den unteren Sammelbehälter (2);
    die Vorrichtung (500) umfassend elektronische Steuereinrichtungen (30; 60), dafür vorgesehen, die Kondensatablaufpumpe (50) zu betätigen, um die kondensierte Flüssigkeit von dem unteren Sammelbehälter (2) in den oberen Sammelbehälter (3) zu verdrängen;
    dadurch gekennzeichnet, dass die elektronischen Steuereinrichtungen (30; 60) auch dafür vorgesehen sind, um:
    einen Schwachlastzustand der Kondensatablaufpumpe (50), während des Betriebes der Kondensatablaufpumpe (50), festzustellen und den Betrieb der Kondensatablaufpumpe (50) bei Feststellung des Schwachlastzustandes zu unterbrechen;
    eine Messung der Stellzeit (T2) der Kondensatablaufpumpe (50), während des Betriebes der Kondensatablaufpumpe (50), durchzuführen und einen Vollzustand des Kondensat-Sammelsystems (90) anzuzeigen, wenn diese Stellzeit (T2) größer gleich eine Höchstzeit (T2lim) ist.
  15. Motor-Pumpen-Gruppe (1, 30, 50) umfassend eine Kondensatablaufpumpe (50), einen Einphasen-Permanentmagnetsynchronelektromotor (1), dafür vorgesehen, selbige zu betätigen, und eine lokale Schalttafel (20), dafür vorgesehen, den Elektromotor (1) anzutreiben,
    dadurch gekennzeichnet, dass die lokale Schalttafel (20) auch dafür vorgesehen ist, um:
    einen Schwachlastzustand der Kondensatablaufpumpe (50), während des Betriebes der Kondensatablaufpumpe (50), festzustellen und den Betrieb der Kondensatablaufpumpe (50) bei Feststellung des Schwachlastzustandes zu unterbrechen;
    eine Messung der Stellzeit (T2) der Kondensatablaufpumpe (50), während des Betriebes der Kondensatablaufpumpe (50), durchzuführen und einen anomalen Zustand anzuzeigen, wenn diese Stellzeit (T2) größer gleich eine Höchstzeit (T2lim) ist.
EP13425078.6A 2013-05-28 2013-05-28 Verfahren zum Sammeln von Kondensat innerhalb einer Vorrichtung, Vorrichtung mit einem Kondensatsammelsystem und Motor-Pumpe-Aggregat für das Kondensatsammelsystem Active EP2808548B1 (de)

Priority Applications (3)

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EP13425078.6A EP2808548B1 (de) 2013-05-28 2013-05-28 Verfahren zum Sammeln von Kondensat innerhalb einer Vorrichtung, Vorrichtung mit einem Kondensatsammelsystem und Motor-Pumpe-Aggregat für das Kondensatsammelsystem
CN201410231281.1A CN104296357B (zh) 2013-05-28 2014-05-28 凝结水收集方法、设备及电动泵组件
US14/289,124 US9593685B2 (en) 2013-05-28 2014-05-28 Method for collecting condensate inside an apparatus, apparatus equipped with a condensate collection system and motor-pump assembly intended for a condensate collection system

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EP13425078.6A EP2808548B1 (de) 2013-05-28 2013-05-28 Verfahren zum Sammeln von Kondensat innerhalb einer Vorrichtung, Vorrichtung mit einem Kondensatsammelsystem und Motor-Pumpe-Aggregat für das Kondensatsammelsystem

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EP2808548B1 true EP2808548B1 (de) 2017-07-26

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EP4227596A3 (de) * 2021-10-04 2023-11-29 Aspen Pumps Limited Kondensatpumpenanordnung und steuerungsverfahren

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CN104296357B (zh) * 2013-05-28 2019-03-08 阿思科控股一人有限责任公司 凝结水收集方法、设备及电动泵组件
DE102015201831A1 (de) * 2015-02-03 2016-08-04 BSH Hausgeräte GmbH Verfahren zur Ermittlung von Wäscheeigenschaften und hierfür geeigneter Kondensationstrockner
EP3301217A1 (de) * 2016-10-03 2018-04-04 Whirlpool Corporation Verfahren zur bestimmung der menge an wasser in einem behälter für wäschetrockner, prozess zum trocknen von wäsche in einem wäschetrockner und wäschetrockner zur implementierung dieses verfahrens und prozesses
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CN114294249B (zh) * 2021-12-25 2023-11-28 上海水泵制造有限公司 一种凝结水泵的检测装置

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