EP2743602B1 - Erkennung von Anomalien in einem Heißwasserzuführsystem - Google Patents

Erkennung von Anomalien in einem Heißwasserzuführsystem Download PDF

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Publication number
EP2743602B1
EP2743602B1 EP13197567.4A EP13197567A EP2743602B1 EP 2743602 B1 EP2743602 B1 EP 2743602B1 EP 13197567 A EP13197567 A EP 13197567A EP 2743602 B1 EP2743602 B1 EP 2743602B1
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EP
European Patent Office
Prior art keywords
restart
temperature
tank
time slot
anomaly
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EP13197567.4A
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English (en)
French (fr)
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EP2743602A1 (de
Inventor
Jean-Marc Jicquel
Jean-Francois Doucet
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Electricite de France SA
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Electricite de France SA
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Publication of EP2743602A1 publication Critical patent/EP2743602A1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/124—Preventing or detecting electric faults, e.g. electric leakage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/223—Temperature of the water in the water storage tank
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/355—Control of heat-generating means in heaters
    • F24H15/37—Control of heat-generating means in heaters of electric heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/395—Information to users, e.g. alarms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/40—Control of fluid heaters characterised by the type of controllers
    • F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
    • F24H15/421—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
    • F24H9/2021—Storage heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/042—Temperature sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/044—Flow sensors

Definitions

  • the present invention relates to the detection of anomalies (for example faults) in electrical installations for the production of Domestic Hot Water (DHW).
  • anomalies for example faults
  • DHW Domestic Hot Water
  • Such installations comprise at least one hot water tank, most often three water tanks connected in series, a first set of balloons being able to be supplied with cold water and a second set of balloons being able to dispense the water.
  • Hot water Each of the balloons comprises a dedicated immersion heater which is able to heat the water contained in the balloon.
  • each flask includes a heating resistor, and in addition to identifying the presence of an abnormality, it is necessary to identify what resistance is lacking.
  • the document US2007 / 175883 discloses a control system for an electric water heater, comprising a control module that controls the electric water heater selectively activating lower and upper heating elements, and a user interface that allows a user to select a target temperature and a temperature. energy saving mode.
  • the present invention improves the situation.
  • anomaly is meant a failure of the heating unit.
  • it may also be a problem related to the closure of the distribution of DHW and which causes abnormal cooling of the balloon connected to the withdrawal means.
  • the invention thus makes it possible, with a minimum instrumentation comprising only two sensors implemented on the DHW system, to detect an anomaly in the system, and to identify the faulty balloon in the case where the system comprises several balloons.
  • the invention further proposes to take into account a given instant in the detection of an anomaly, which improves the accuracy of the detection. Indeed, the consumption profiles are not the same throughout the day and the heating units are generally not activated continuously.
  • the first time slot may correspond to off-peak hours (which are generally at night) while the The second time slot may correspond to the peak hours, during which peaks of consumption are usually in the morning (beginning of the first part) and in the evening (end of the second part).
  • the module according to the invention makes it possible to determine whether a restart is necessary or not, and from this presence or absence of recovery, to detect a possible anomaly.
  • system may comprise at least three water flasks, including an inlet assembly comprising at least one inlet flask comprising the drawing means, a withdrawal assembly comprising at least one withdrawal flask comprising the means for withdrawal, and the stimulus balloon between the inlet assembly and the withdrawal assembly.
  • the present invention applies particularly to the fields of hospitality, health, community housing, residential collective, etc..
  • a first temperature threshold may be predetermined, and, when the moment considered belongs to the second time slot, in case of absence of stimulus during the second time slot and in the case where the temperature measured in the balloon of recovery is less than the first temperature threshold, the abnormality detection unit can detect an anomaly on a heating unit of the input assembly.
  • This embodiment makes it possible to detect an anomaly in the input assembly, with minimal instrumentation comprising only two sensors implanted in the system.
  • a second temperature threshold may be predetermined, and if, at the end of the first time slot, the temperature measured in the recovery tank is lower than the second temperature threshold, then the detection unit of Anomaly can detect an anomaly on the stimulus heater.
  • This embodiment makes it possible to detect an anomaly in the stimulus balloon, with minimal instrumentation comprising only two sensors implanted in the system. In this case, only the Temperature sensor information is used to detect the anomaly in the stimulus balloon.
  • the second temperature threshold may be greater than the first temperature threshold.
  • a critical instant of the first part of the second time slot can be predefined, and, if the stimulus unit activates the heating unit of the stimulus balloon at a time considered prior to the critical instant , the abnormality detection unit can detect an anomaly on the heating unit of the withdrawal assembly.
  • This embodiment makes it possible to detect an anomaly in the withdrawal assembly, with minimal instrumentation comprising only two sensors located in the system.
  • Such an embodiment implements a larger number of sensors, which improves the reliability associated with the detection of anomaly, and in particular to determine the balloon or assembly that is lacking.
  • the temperature sensor able to measure the temperature of the water contained in the balloon The stimulus may be a first temperature sensor, and the module may further comprise at least a second temperature sensor capable of measuring the temperature of the water contained in a withdrawal tank of the withdrawal assembly.
  • the An abnormality detection unit can detect an abnormality on the heating unit of the withdrawal flask comprising the second sensor.
  • This embodiment makes it possible to detect the case in which the withdrawal tank cools faster than the stimulus balloon, the possible cause being the loop on the bottom of the withdrawal balloon which has caused its abnormal cooling.
  • a first time slot and a second time slot being predefined, the second time slot being divided into first and second portions, the heating units being active during the first time slot, a raise threshold may be predetermined, and The stimulus unit may engage the booster heater if, at the end of the first part of the second time slot, the measured volume pulsed by the system is greater than the stimulus threshold.
  • a fourth aspect of the invention relates to a computer program product comprising program code instructions recorded on a computer readable medium for performing the steps of the method according to the third aspect of the invention.
  • the figure 1 illustrates a hot water supply system according to one embodiment of the invention.
  • the DHW supply system comprises means 10 for drawing cold water at the inlet of the system.
  • the system further comprises an inlet flask 11, a recovery tank 12, a draw-off tank 13 and draw-off means 14 for supplying hot water at the outlet.
  • the DHW supply system may comprise more than three balls, and in this case, the inlet balloon 11 is a set of inlet balloons 11 and the withdrawal balloon 13 is a set of balloons of withdrawal 13, the recovery tank 12 is often located mid-volume of the ECS supply system.
  • the system may include two input balloons 11, a raise balloon 12 and a draw-off balloon 13, or two input balloons 11, a raise balloon 12 and two draw balloons 13.
  • the drawing means 10 and withdrawal 14 have been represented independently of the water balloons. However, the invention also provides that the drawing means 10 are integrated with the first inlet balloon 11 of a set of inlet balloons, and that the withdrawal means 14 are integrated in the last withdrawal tank 13 of a set of draw balloons. In the case where the system comprises only a stimulus balloon 12 or only two balloons, the drawing or withdrawal means can be integrated into the stimulus balloon.
  • Each water tank is equipped with a dedicated heating unit, invariably called immersion heater thereafter. However, no restriction is attached to the type of heating unit used for heating water.
  • the inlet balloon 11 thus comprises an immersion heater 18.1
  • the recovery tank 12 comprises an immersion heater 18.2
  • the withdrawal tank comprises an immersion heater 18.3.
  • the period corresponding to the HC will be called the first time slot and the period corresponding to HP will be called second time slot in the following.
  • the first time slot can be an eight-hour night period.
  • the immersion heaters 18.1, 18.2 and 18.3 are active to ensure a regulated temperature (eg 55 ° C) in the water balloons in the morning, when the second time slots.
  • the immersion heaters 18.1, 18.2 and 18.3 are deactivated by default during the second time slot.
  • the system comprises a volume sensor 16 capable of measuring a volume drawn by the system at the drawing means 10 and a temperature sensor 19.1 adapted to measure the temperature of the water contained in the stimulus balloon 12 .
  • the inlet balloon 11 (or each of the inlet balloons of a set of inlet balloons) may also comprise a temperature sensor 19.2 and the withdrawal balloon 13 (or each draw-off flasks of a set of draw-off flasks) may also include a temperature sensor 19.3.
  • Such a system makes it possible to overcome a problem of under-sizing DHW installations by managing a conditional raise for the days of high drawdown. If the installation is oversized, it is possible to leave a water tank in standby or stand-by mode for maintenance or rescue purposes.
  • the volume sensor 16, the temperature sensor 17 and the device 15 together form an abnormality detection module within the meaning of the invention.
  • the volume sensor 16 transmits to the device 15 information on the volume of cold water drawn by the DHW supply system.
  • the device 15 is illustrated in more detail with reference to the figure 2 .
  • the device 15 comprises a first interface 21 able to receive the information concerning the volume of cold water drawn by the DHW supply system of the volume sensor 16.
  • the device 15 furthermore comprises a second interface capable of receiving information relating to the temperature measured by the temperature sensor 19.1, and optionally information relating to the temperatures measured by the temperature sensors 19.2 and 19.3.
  • a stimulus unit 24 of the device 15 is able to switch on the heating unit 18.2 of the stimulus balloon 12 as a function of the volume pulsed by the system and at a given instant.
  • the withdrawal of ECS in accommodation buildings in areas such as the hotel, health, community housing, collective residential, is divided into two distinct points in the morning and evening (at the beginning and end of the second time slot).
  • the second time slot can be divided into a first part and a second part, the transition to the second part having for example at midday.
  • the stimulus unit 24 of the device 15 engages the heating unit 18.2 of the device. 12. In the opposite case, no raise is made.
  • the stimulus unit 24 thus takes into account the pulsed volume at the input of the system and the moment considered in order to decide whether a restart of the heating unit 18.2 must be performed.
  • the stimulus unit 24 may be connected to an HP / HC contactor or to a clock, not shown on FIG. figure 2 .
  • the heating unit 18.2 is restarted. Indeed, it is not necessary to restart the balloon (or balloons) input 11 already completely cold or the balloon (or balloons) still completely hot (with thermal losses near). The coverage of the consumption peak corresponding to the end of the second time slot (in the evening) is thus guaranteed, the stimulus being made by the stimulus unit 24 only if it is necessary.
  • the device 15 further comprises an anomaly detecting unit 23 able to detect an anomaly on one of the heating units 18.1, 18.2 and 18.3, on the basis of the temperature measured at the moment considered in the stimulus balloon. 12 and / or on the basis of a restart or a lack of recovery of the stimulus unit at the instant in question.
  • the detection unit 23 can furthermore take into account the temperatures measured by the temperature sensors 19.2 and 19.3.
  • the system comprises a single temperature sensor 19.1 in the recovery tank 12.
  • the first embodiment allows the monitoring of the good operation of the immersion heaters 18.1, 18.2 and 18.3, with the minimum of instrumentation, which allows to reduce the costs associated with the service.
  • the temperature sensor 19.1 is thus put in place, preferably at half height of the recovery tank 12 (which usually corresponds to the recovery volume) in order to detect, on the one hand, whether the temperature reaches a regulatory temperature of 55 ° C. for example, on the other hand to guarantee the heated recovery volume and finally to detect an anomaly in a water tank (immersion heater for example).
  • the abnormality detection unit 23 detects an anomaly on the immersion heater 18.1 (or on one of the immersion heaters of the input assembly in the case where the system comprises several balloons d entry 11).
  • the anomaly detection unit 23 detects an anomaly on the immersion heater 18.2 of the stimulus balloon 12.
  • a critical instant of the first part of the second time slot it can for example be 8.00 in the morning. If the stimulus unit 24 engages the heating unit 18.2 of the stimulus balloon 12 at a time considered prior to the critical moment (third criterion), the anomaly detection unit 23 detects an anomaly on the balloon withdrawal 13 (or the set of draw balloons13).
  • the system comprises a temperature sensor for each water tank, or for each set of water tanks.
  • a temperature threshold is defined for all the balloons (55 ° C for example) below which an anomaly is detected for the balloon in question.
  • the abnormality detection unit 23 detects an anomaly of the heating unit 18.1, 18.2 or 18.3 of the flask whose temperature is below the temperature threshold of 55 ° C.
  • the abnormality detection unit 23 detects an anomaly on the heating unit 18.3 of the withdrawal tank 13 comprising the temperature sensor 19.3.
  • One possible cause of this anomaly may be the loop on the bottom of the withdrawal tank 13 which has caused its abnormal cooling.
  • the system may comprise less than three water balloons.
  • the system comprises a single balloon: it is then the stimulus balloon 12 which includes the temperature sensor 19.1 and which is connected directly to the drawing means 10 and withdrawal 14. Therefore, the three criteria mentioned in the first realization allow to deduce an anomaly in the immersion heater 18.2 of the single balloon 12.
  • the system comprises two balloons: it is then the stimulus 12 and the balloon 11 or the stimulus balloon 12 and the withdrawal tank 13.
  • the first criterion mentioned above involves an anomaly on the first of two balls (either the entry balloon 11 or the stimulus balloon 12 if the system does not include an inlet balloon 11).
  • the second criterion involves an anomaly on the stimulus balloon 12 (whether it is the first or the second of the two balloons) and the third criterion involves a defect on the last balloon (either the withdrawal balloon 13 or the stimulus balloon 12 if the system does not include a withdrawal tank 13).
  • the detection unit 23 can generate an alert to transmit via an interface 25 to a remote entity, for the purpose of processing this anomaly. No restrictions are attached to the post-processing of the detected anomaly.
  • the figure 3 is a diagram illustrating the steps of a method according to an embodiment of the invention.
  • the temperature sensor 19.1 (and optionally the sensors 19.2 and 19.3) measures the temperature of the water in the recovery tank 12 and transmits information relating to this temperature to the stimulus unit 24 and to the Detection unit 23. No restriction is attached to the frequency at which the temperature is measured.
  • the information can be transmitted in sending mode, said "push” mode, on the initiative of the temperature sensor 19.1 and at regular frequency, or in interrogation mode, called “pull" mode, on request of the stimulus unit 24 and / or the detection unit 23.
  • the volume sensor 16 measures the volume of water pulsed at the input of the system and transmits information relating to the pulsed volume to the stimulus unit 24 No restriction is attached to the frequency at which the pulsed volume is measured.
  • the information can be transmitted in "push” mode, at the initiative of the volume sensor 16 and at regular frequency, or in "pull” mode on request of the stimulus unit 24.
  • the stimulus unit 24 determines whether the immersion heater 18.2 of the stimulus balloon 12 must be engaged or not. The absence or presence of stimulus is communicated to the detection unit 23.
  • the detection unit 23 can detect or not, on the basis of the moment considered, the temperature information received from the temperature sensor 19.1 (and possibly temperature sensors 19.2) and from the absence or presence of stimulus, an anomaly of an immersion heater of one of the balloons or one of the sets of balloons.
  • step 33 is iterated on receipt of new information at a new instant considered.
  • an alert can be generated at a step 34 via the third interface 25.
  • the system according to the invention can be equipped with an internal clock (with an automatic time-setting system by satellite, for example). in order to start the activation of the immersion heaters of all the balloons on the basis of a logical OR function between a desired storage period (for example of 22.00 to 6.00 am) and the toll-free contact tariff.
  • the system should not be operated in a semi-instantaneous manner (24 hours a day) because there would be a risk of temperature favorable to the development of bacteria (between 25 and 45 ° C) in the inlet balloon 11 and a sharp increase in thermal storage losses.
  • the temperature measurement at the immersion heaters makes it possible to measure the state of storage of the flasks while the measurement at the exit of the flasks measures the state of the water during the withdrawals.
  • the method presented above is based on the storage state of the balloons and it is thus preferable that the temperature sensor or sensors are placed at the level of the immersion heaters.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Claims (11)

  1. Modul zur Erkennung einer Anomalie für ein Heißwasserzuführsystem, umfassend mindestens einen Wasserspeicher (12), wobei das System Kaltwasserzapfmittel (10) am Eingang des Systems und Entnahmemittel (14) umfasst, um Heißwasser am Ausgang des Systems zu liefern, wobei jeder Wasserspeicher eine Heizeinheit (18.1; 18.2; 18.3) zum Erhitzen des Wassers umfasst, wobei das Erkennungsmodul mindestens umfasst:
    - einen Temperaturfühler (19.1), der geeignet ist, die Temperatur des in einem Wasserspeicher des Systems, genannt Speicher, enthaltenen Wassers zu messen;
    - einen Volumensensor (16), der geeignet ist, ein von dem System im Bereich der Zapfmittel gezapftes Volumen zu messen;
    - eine Auffülleinheit (24), um die Heizeinheit des Auffüllspeichers in Abhängigkeit von dem vom System gezapften Volumen und einem betreffenden Zeitpunkt einzuschalten;
    - eine Einheit (23) zur Erkennung einer Anomalie, die geeignet ist, eine Anomalie an einer Heizeinheit auf Basis der zu dem betreffenden Zeitpunkt in dem Auffüllspeicher gemessenen Temperatur und/oder auf Basis einer Auffüllung oder einer nicht vorhandenden Auffüllung der Auffülleinheit zu dem betreffenden Zeitpunkt zu erkennen;
    wobei ein erster Zeitbereich und ein zweiter Zeitbereich vordefiniert werden, wobei der zweite Zeitbereich in erste und zweite Teile unterteilt wird, wobei die Heizeinheiten (18.1; 18.2; 18.3) während des ersten Zeitbereichs, in dem eine Auffüllschwelle vorbestimmt ist, aktiv sind, und wobei die Auffülleinheit (24) die Heizeinheit des Auffüllspeichers (12) einschaltet, wenn nach dem ersten Teil des zweiten Zeitbereichs das von dem System gezapfte gemessene Volumen größer als die Auffüllschwelle ist.
  2. Modul nach Anspruch 1, bei dem das System mindestens drei Wasserspeicher (11; 12; 13) umfasst, bei dem eine Eingangseinheit, mindestens einen Eingangsspeicher (11), umfassend die Zapfmittel (10), eine Entnahmeeinheit, umfassend mindestens einen Entnahmespeicher (13), umfassend die Entnahmemittel, umfasst und der Auffüllspeicher (12) zwischen der Eingangseinheit und der Entnahmeeinheit enthalten ist.
  3. Modul nach Anspruch 2, bei dem eine erste Temperaturschwelle vorbestimmt wird, und bei dem, wenn der betreffende Zeitpunkt dem zweiten Zeitbereich angehört, im Falle einer nicht vorhandenen Auffüllung während des zweiten Zeitbereichs und falls die in dem Auffüllspeicher (12) gemessene Temperatur niedriger als die erste Temperaturschwelle ist, die Einheit (23) zur Erkennung einer Anomalie eine Anomalie an einer Heizeinheit (18.1) der Eingangseinheit erkennt.
  4. Modul nach Anspruch 2 oder 3, bei dem eine zweite Temperaturschwelle bestimmt wird, und bei dem, wenn am Ende des ersten Zeitbereichs die in dem Auffüllspeicher (12) gemessene Temperatur niedriger als die zweite Temperaturschwelle ist, nun die Einheit (23) zur Erkennung einer Anomalie eine Anomalie an der Heizeinheit (18.2) des Auffüllspeichers erkennt.
  5. Modul nach den Ansprüchen 3 und 4, bei dem die zweite Temperaturschwelle höher als die erste Temperaturschwelle ist.
  6. Modul nach einem der Ansprüche 2 bis 5, bei dem ein kritischer Zeitpunkt des ersten Teils des zweiten Zeitbereichs definiert wird, und bei dem, wenn die Auffülleinheit (24) die Heizeinheit des Auffüllspeichers (12) zu einem betreffenden Zeitpunkt vor dem kritischen Zeitpunkt einschaltet, die Einheit (23) zur Erkennung einer Anomalie eine Anomalie an der Heizeinheit (18.3) der Entnahmeeinheit erkennt.
  7. Modul nach Anspruch 2, bei dem der Temperaturfühler (19.1), der geeignet ist, die Temperatur des in dem Auffüllspeicher enthaltenen Wassers zu messen, ein erster Temperaturfühler ist, wobei das Modul ferner umfasst:
    - mindestens einen zweiten Temperaturfühler (19.2), der geeignet ist, die Temperatur des in dem Eingangsspeicher (11) der Eingangseinheit enthaltenen Wassers zu messen;
    - einen dritten Temperaturfühler (19.3), der geeignet ist, die Temperatur des in dem Entnahmespeicher (13) der Entnahmeeinheit enthaltenen Wassers zu messen;
    und bei dem, wobei eine Temperaturschwelle vordefiniert ist, wenn einer der ersten, zweiten und dritten Temperaturfühler eine niedrigere Temperatur als die Temperaturschwelle misst, die Einheit (23) zur Erkennung einer Anomalie eine Anomalie der Heizeinheit (18.1; 18.2; 18.3) des Speichers, dessen Temperatur niedriger als die Temperaturschwelle ist, erkennt.
  8. Modul nach Anspruch 2, bei dem der Temperaturfühler, der geeignet ist, die Temperatur des in dem Auffüllspeicher enthaltenen Wassers zu messen, ein erster Temperaturfühler ist, wobei das Modul ferner umfasst:
    - mindestens einen zweiten Temperaturfühler (19.3), der geeignet ist, die Temperatur des in einem Entnahmespeicher (13) der Entnahmeeinheit enthaltenen Wassers zu messen;
    wobei bei Nichtvorhandensein einer Auffüllung durch die Auffülleinheit (24) zum betreffenden Zeitpunkt und wenn der Unterschied zwischen der vom ersten Temperaturfühler gemessenen Temperatur und der vom zweiten Temperaturfühler gemessenen Temperatur größer als eine vorbestimmte Schwelle ist, die Einheit (23) zur Erkennung einer Anomalie eine Anomalie an der Heizeinheit (18.3) des Entnahmespeichers (13), der den zweiten Fühler umfasst, erkennt.
  9. System zur Heißwasserzuführung, umfassend mindestens einen Wasserspeicher (12), wobei das System Kaltwasserzapfmittel (10) am Eingang des Systems und Entnahmemittel (14) umfasst, um Heißwasser am Ausgang des Systems zu liefern, wobei jeder Wasserspeicher eine Heizeinheit (18.1; 18.2; 18.3) zum Erhitzen des Wassers umfasst, wobei das System ferner ein Modul zur Erkennung einer Anomalie nach Anspruch 1 umfasst.
  10. Verfahren zur Erkennung einer Anomalie in einem Heißwasserzuführsystem, umfassend mindestens einen Wasserspeicher (12), wobei das System Kaltwasserzapfmittel (10) am Eingang des Systems und Entnahmemittel (14) umfasst, um Heißwasser am Ausgang des Systems zu liefern, wobei jeder Wasserspeicher eine Heizeinheit (18.1; 18.2; 18.3) zum Erhitzen des Wassers umfasst, wobei das Verfahren mindestens die folgenden Schritte umfasst:
    - Messen der Temperatur des in einem Speicher des Systems, Auffüllspeicher genannt, enthaltenen Wassers;
    - Messen eines von dem System im Bereich der Zapfmittel gezapften Volumens;
    - bedingte Auffüllung der Heizeinheit des Auffüllspeichers in Abhängigkeit von dem vom System gezapften Volumen und einem betreffenden Zeitpunkt;
    - Erkennung einer Anomalie an einer Heizeinheit auf Basis der zu dem betreffenden Zeitpunkt in dem Auffüllspeicher gemessenen Temperatur und/oder auf Basis einer Auffüllung oder einer nicht vorhandenen Auffüllung der Auffülleinheit zu dem betreffenden Zeitpunkt,
    wobei ein erster Zeitbereich und ein zweiter Zeitbereich vordefiniert werden, wobei der zweite Zeitbereich in erste und zweite Teile unterteilt wird, wobei die Heizeinheiten (18.1; 18.2; 18.3) während des ersten Zeitbereichs, in dem eine Auffüllschwelle vorbestimmt ist, aktiv sind, und wobei die Heizeinheit des Auffüllspeichers (12) eingeschaltet wird, wenn nach dem ersten Teil des zweiten Zeitbereichs das von dem System gezapfte gemessene Volumen größer als die Auffüllschwelle ist.
  11. Computerprogrammprodukt, umfassend Programmcodebefehle, die auf einem von einem Computer lesbaren Träger aufgezeichnet sind, und das die Schritte des Verfahrens nach Anspruch 10 ausführt.
EP13197567.4A 2012-12-17 2013-12-16 Erkennung von Anomalien in einem Heißwasserzuführsystem Active EP2743602B1 (de)

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FR1262160A FR2999688B1 (fr) 2012-12-17 2012-12-17 Detection d'anomalie dans un systeme de fourniture d'eau chaude

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CN108800595A (zh) * 2018-05-11 2018-11-13 广东万和热能科技有限公司 电热水器剩余加热时间生成方法、装置及电热水器

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