WO2021037311A1 - Method for operating a heating device - Google Patents

Method for operating a heating device Download PDF

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Publication number
WO2021037311A1
WO2021037311A1 PCT/DE2020/100755 DE2020100755W WO2021037311A1 WO 2021037311 A1 WO2021037311 A1 WO 2021037311A1 DE 2020100755 W DE2020100755 W DE 2020100755W WO 2021037311 A1 WO2021037311 A1 WO 2021037311A1
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WO
WIPO (PCT)
Prior art keywords
heat exchanger
temperature sensor
temperature
heated
drinking water
Prior art date
Application number
PCT/DE2020/100755
Other languages
German (de)
French (fr)
Inventor
Benny KONTOROWITZ
Christine Hanke
Michael KALIDE
Erhard Lauer
Original Assignee
Viessmann Werke Gmbh & Co Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Viessmann Werke Gmbh & Co Kg filed Critical Viessmann Werke Gmbh & Co Kg
Publication of WO2021037311A1 publication Critical patent/WO2021037311A1/en

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Classifications

    • 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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/107—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using fluid fuel
    • 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
    • F24H15/174—Supplying heated water with desired temperature or desired range of temperature
    • 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
    • F24H15/176—Improving or maintaining comfort of users
    • 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
    • F24H15/219—Temperature of the water after heating
    • 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
    • F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
    • 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
    • F24H15/238—Flow rate

Definitions

  • a method of the type mentioned at the beginning is known from the patent document DE 10154 196 A1.
  • a primary side of a heat exchanger is flowed through by a heat transfer medium that is heated as required and through a secondary side of the heat exchanger when drinking water to be heated is drawn off.
  • an outlet temperature of the drawn drinking water is determined with a temperature sensor, with the drinking water to be heated at the beginning of the drawing, if it has not been drawn for a longer period, is cold or in any case is not at the desired outlet temperature level.
  • the invention is based on the object of improving a method of the type mentioned at the beginning.
  • a method is to be created in which it is ensured in the simplest possible way that the drawn drinking water already has the desired outlet temperature at the beginning of drawing, even if the last drawing was a long time ago.
  • This desired temperature, known per se, at the beginning of a tap is also called the comfort temperature; up to now, however, relatively complex measures have been required to implement them, which are described in more detail below.
  • the heat transfer medium flowing through the primary side is heated in a tap-free phase until a preset value is reached on the temperature sensor.
  • the solution according to the invention is characterized by the fact that the temperature sensor previously only used to regulate the outlet temperature is now also used - in the sense of a double function - to regulate the comfort temperature, namely when there is currently no tapping and only when hot water generation is switched on on the heater. Outside of these times, e.g. during the night reduction, the comfort temperature function is not active.
  • a further temperature sensor which was previously provided on the heat exchanger to regulate the comfort temperature and is designed as a so-called contact sensor, can be dispensed with in this way; H. the effort mentioned at the beginning can be considerably reduced by the solution according to the invention.
  • a hysteresis value (of, for example, 12 K) can be set for the desired outlet temperature, ie the outlet temperature applies in order to avoid unnecessary burner starts.
  • the temperature for the heater's control device is already reached when the lower hysteresis value is measured with the temperature sensor.
  • Figure 1 schematically shows a heater for performing the method according to the invention.
  • a primary side 1.1 of a heat exchanger 1 which is preferably designed as a plate heat exchanger, is initially flowed through in a known manner by a heat transfer medium heated as required. Furthermore, a secondary side 1.2 of the heat exchanger 1 is flowed through when drinking water to be heated is drawn off. In addition, an outlet temperature of the drawn drinking water is determined or measured with a temperature sensor 2.
  • the heat transfer medium is preferably also used with a burner 3 (for example an oil or gas burner). warms. Alternatively, a heat pump or a combined heat and power plant could also be used to heat the heat transfer medium.
  • the heat transfer medium is preferably conducted in a circuit 5.
  • the heat transfer medium is preferably conveyed with a pump 4 belonging to the circuit 5 5 through a heat exchanger 3.1 of the burner 3 and, in the case of drinking water preparation, through the primary side 1.1 of the heat exchanger 1.
  • the heat transfer medium 10 is taken from the circuit 5 at a first point 5.1 for forwarding to a heating circuit 6 (with corresponding heating elements) and fed to the circuit 5 at a second point 5.2 for return from the heating circuit 6. It is furthermore preferably provided that a valve 7 (switching valve), preferably actuated by a control motor 7.1, is used at the second point 5.2 (alternatively [not shown separately] also at the first point 5.1) to control the volume flow of the heat transfer medium either at To direct heat exchanger 1 or to heating circuit 6. 20th
  • the drinking water is preferably supplied to the secondary side 1.2 of the heat exchanger 1 via a cold water connection 1.2.1 and discharged from the secondary side 1.2 of the heat exchanger 1 via a hot water discharge connection 1.2.2.
  • a flow sensor 8 is also particularly preferably used for detecting a volume flow at the cold water connection 1.2.1.
  • a temperature of the drinking water on the secondary side 1.2 of the heat exchanger 1 is measured by means of the temperature sensor 2 at one or the above-mentioned hot water discharge connection 1.2.2 or that the temperature sensor 2 is measured at the hot water discharge connection 1.2.2 of the Secondary side 1.2 of the heat exchanger 1, preferably in an interior space of the heater (inside the device casing), particularly preferably directly next to the heat exchanger 1, in particular not more than 3 cm away from it.
  • the rule here is that the control of the comfort temperature works better the closer the temperature sensor 2 is to the heat exchanger 1.
  • the temperature sensor 2, the burner 3, the pump 4, the valve 7 and / or the flow sensor 8 are optionally operated with a common control device (not shown separately) (depending on which component is actually present).

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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)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

The invention relates to a method for operating a heating device, in which method a heat-transfer medium heated as needed flows through a primary side (1.1) of a heat exchanger (1), drinking water to be heated flows through a secondary side (1.2) of the heat exchanger (1) during tapping, and an outlet temperature of the tapped drinking water is determined by means of a temperature sensor (2). According to the invention, in order to control a comfort temperature on the secondary side (1.2) of the heat exchanger (1), the heat-transfer medium flowing through the primary side (1.1) is heated in a tapping-free phase until a specified value is achieved at the temperature sensor (2).

Description

Verfahren zum Betrieb eines Heizgeräts Method of operating a heater
Die Erfindung betrifft ein Verfahren zum Betrieb eines Heizge5 räts gemäß dem Oberbegriff des Patentanspruchs 1. The invention relates to a method for operating a heater according to the preamble of claim 1.
Ein Verfahren der eingangs genannten Art ist aus dem Patentdokument DE 10154 196 Al bekannt. Bei diesem wird eine Primärseite eines Wärmeübertragers von einem bedarfsabhängig erwärm10 ten Wärmeträgermedium und eine Sekundärseite des Wärmeübertragers bei einer Zapfung von zu erwärmendem Trinkwasser durchströmt. Außerdem wird bei diesem Verfahren eine Auslauftempe- ratur des gezapften Trinkwassers mit einem Temperatursensor ermittelt, wobei das zu erwärmende Trinkwasser zu Beginn der 15 Zapfung, sofern länger nicht gezapft wurde, kalt ist bzw. sich jedenfalls nicht auf dem gewünschten Auslauftemperaturniveau befindet. A method of the type mentioned at the beginning is known from the patent document DE 10154 196 A1. In this case, a primary side of a heat exchanger is flowed through by a heat transfer medium that is heated as required and through a secondary side of the heat exchanger when drinking water to be heated is drawn off. In addition, with this method an outlet temperature of the drawn drinking water is determined with a temperature sensor, with the drinking water to be heated at the beginning of the drawing, if it has not been drawn for a longer period, is cold or in any case is not at the desired outlet temperature level.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der 20 eingangs genannten Art zu verbessern. Insbesondere soll ein Verfahren geschaffen werden, bei dem auf möglichst einfache Weise sichergestellt ist, dass das gezapfte Trinkwasser bereits zu Beginn einer Zapfung, selbst dann, wenn die letzte Zapfung schon länger zurück liegt, die gewünschte Auslauftem- 25 peratur aufweist. Diese an sich bekannte Wunschtemperatur zu Beginn einer Zapfung wird auch Komforttemperatur genannt; bisher sind zu deren Realisierung aber relativ aufwändige Maßnahme erforderlich, die weiter unten noch genauer beschrieben werden. 30 Diese Aufgabe ist mit einem Verfahren der eingangs genannten Art durch die im Kennzeichen des Patentanspruchs 1 aufgeführten Merkmale gelöst. The invention is based on the object of improving a method of the type mentioned at the beginning. In particular, a method is to be created in which it is ensured in the simplest possible way that the drawn drinking water already has the desired outlet temperature at the beginning of drawing, even if the last drawing was a long time ago. This desired temperature, known per se, at the beginning of a tap is also called the comfort temperature; up to now, however, relatively complex measures have been required to implement them, which are described in more detail below. 30th This object is achieved with a method of the type mentioned at the beginning by the features listed in the characterizing part of claim 1.
Nach der Erfindung ist also vorgesehen, dass zur Regelung ei5 ner Komforttemperatur auf der Sekundärseite des Wärmeübertragers das die Primärseite durchströmende Wärmeträgermedium in einer zapffreien Phase solange erwärmt wird, bis am Temperatursensor ein Vorgabewert erreicht ist. According to the invention, it is provided that to regulate a comfort temperature on the secondary side of the heat exchanger, the heat transfer medium flowing through the primary side is heated in a tap-free phase until a preset value is reached on the temperature sensor.
1010
Mit anderen Worten zeichnet sich die erfindungsgemäße Lösung somit dadurch aus, dass der bisher lediglich zur Regelung der Auslauftemperatur verwendete Temperatursensor nunmehr auch - im Sinne einer Doppelfunktion - zur Regelung der Komforttemperatur verwendet wird, und zwar dann, wenn gerade nicht gezapft 15 wird und auch nur dann, wenn am Heizgerät die Warmwasserbereitung eingeschaltet ist. Außerhalb dieser Zeiten, also zum Beispiel während der Nachtabsenkung, ist die Komforttemperaturfunktion nicht aktiv. Ein bisher am Wärmeübertrager zur Regelung der Komforttemperatur vorgesehener, weiterer und als so20 genannter Anlegesensor ausgebildeter Temperatursensor kann auf diese Weise entfallen, d. h. der eingangs genannte Aufwand kann durch die erfindungsgemäße Lösung erheblich reduziert werden. In other words, the solution according to the invention is characterized by the fact that the temperature sensor previously only used to regulate the outlet temperature is now also used - in the sense of a double function - to regulate the comfort temperature, namely when there is currently no tapping and only when hot water generation is switched on on the heater. Outside of these times, e.g. during the night reduction, the comfort temperature function is not active. A further temperature sensor, which was previously provided on the heat exchanger to regulate the comfort temperature and is designed as a so-called contact sensor, can be dispensed with in this way; H. the effort mentioned at the beginning can be considerably reduced by the solution according to the invention.
2525th
Bezüglich der in der obigen Aufgabenstellung erwähnten "gewünschten Auslauftemperatur " wird dabei noch darauf hingewiesen, dass diese auch bei der erfindungsgemäßen Lösung vorzugsweise einstellbar ist. Außerdem ist erfindungsgemäß vorzugsweise vorgesehen, dass zur gewünschten Auslauftemperatur ein 30 Hysteresewert (von zum Beispiel 12 K) einstellbar ist, d. h. um unnötige Brennerstarts zu vermeiden, gilt die Auslauftempe- ratur für die Regeleinrichtung des Heizgerätes bereits dann als erreicht, wenn mit dem Temperatursensor der untere Hysteresewert gemessen wird. With regard to the “desired outlet temperature” mentioned in the above problem, it should also be pointed out that this is preferably also adjustable in the solution according to the invention. In addition, it is preferably provided according to the invention that a hysteresis value (of, for example, 12 K) can be set for the desired outlet temperature, ie the outlet temperature applies in order to avoid unnecessary burner starts. The temperature for the heater's control device is already reached when the lower hysteresis value is measured with the temperature sensor.
Andere vorteilhafte Weiterbildungen des erfindungsgemäßen Ver5 fahrens ergeben sich aus den abhängigen Patentansprüchen. Other advantageous developments of the method according to the invention result from the dependent claims.
Der Vollständigkeit halber wird noch auf das Dokument EP 1310 746 Bl hingewiesen. For the sake of completeness, reference is also made to document EP 1310 746 B1.
1010
Das erfindungsgemäße Verfahren einschließlich seiner vorteilhaften Weiterbildungen gemäß der abhängigen Patentansprüche wird nachfolgend anhand der zeichnerischen Darstellung eines bevorzugten Ausführungsbeispiels näher erläutert. The method according to the invention, including its advantageous developments according to the dependent claims, is explained in more detail below with reference to the drawing of a preferred exemplary embodiment.
1515th
Es zeigt It shows
Figur 1 schematisch ein Heizgerät zur Durchführung des erfindungsgemäßen Verfahrens. Figure 1 schematically shows a heater for performing the method according to the invention.
2020th
Bei dem in der einzigen Figur dargestellten Heizgerät wird zunächst in bekannter Weise eine Primärseite 1.1 eines Wärmeübertragers 1, der vorzugsweise als Plattenwärmetauscher ausgebildet ist, von einem bedarfsabhängig erwärmten Wärmeträgermedium durchströmt. Ferner wird eine Sekundärseite 1.2 des 25 Wärmeübertragers 1 bei einer Zapfung von zu erwärmendem Trinkwasser durchströmt. Außerdem wird eine Auslauftemperatur des gezapften Trinkwassers mit einem Temperatursensor 2 ermittelt bzw. gemessen. In the heater shown in the single figure, a primary side 1.1 of a heat exchanger 1, which is preferably designed as a plate heat exchanger, is initially flowed through in a known manner by a heat transfer medium heated as required. Furthermore, a secondary side 1.2 of the heat exchanger 1 is flowed through when drinking water to be heated is drawn off. In addition, an outlet temperature of the drawn drinking water is determined or measured with a temperature sensor 2.
3030th
Dabei wird weiterhin vorzugsweise das Wärmeträgermedium mit einem Brenner 3 (zum Beispiel einem Öl- oder Gasbrenner) er- wärmt. Alternativ könnte aber auch eine Wärmepumpe oder ein Kraft-Wärme-Kopplungsanlage zur Erwärmung des Wärmeträgermediums verwendet werden. Außerdem wird das Wärmeträgermedium vorzugsweise in einem Kreislauf 5 geführt. Darüber hinaus wird das Wärmeträgermedium vorzugsweise mit einer zum Kreislauf 5 5 gehörenden Pumpe 4 durch einen Wärmetauscher 3.1 des Brenners 3 und bei Trinkwasserbereitung durch die Primärseite 1.1 des Wärmeübertragers 1 gefördert. The heat transfer medium is preferably also used with a burner 3 (for example an oil or gas burner). warms. Alternatively, a heat pump or a combined heat and power plant could also be used to heat the heat transfer medium. In addition, the heat transfer medium is preferably conducted in a circuit 5. In addition, the heat transfer medium is preferably conveyed with a pump 4 belonging to the circuit 5 5 through a heat exchanger 3.1 of the burner 3 and, in the case of drinking water preparation, through the primary side 1.1 of the heat exchanger 1.
Weiterhin ist bevorzugt vorgesehen, dass das Wärmeträgermedium 10 dem Kreislauf 5 an einer ersten Stelle 5.1 zur Weiterleitung an einen Heizkreis 6 (mit entsprechenden Heizkörpern) entnommen und an einer zweiten Stelle 5.2 dem Kreislauf 5 zur Zurückführung vom Heizkreis 6 zugeführt wird. Dabei ist weiterhin bevorzugt vorgesehen, dass ein vorzugsweise mit einem 15 Steuermotor 7.1 betätigtes Ventil 7 (Umschaltventil) an der zweiten Stelle 5.2 (alternativ [nicht extra dargestellt] auch an der ersten Stelle 5.1) verwendet wird, um den Volumenstrom des Wärmeträgermediums entweder bei zum Wärmeübertrager 1 oder zum Heizkreis 6 zu lenken. 20 Furthermore, it is preferably provided that the heat transfer medium 10 is taken from the circuit 5 at a first point 5.1 for forwarding to a heating circuit 6 (with corresponding heating elements) and fed to the circuit 5 at a second point 5.2 for return from the heating circuit 6. It is furthermore preferably provided that a valve 7 (switching valve), preferably actuated by a control motor 7.1, is used at the second point 5.2 (alternatively [not shown separately] also at the first point 5.1) to control the volume flow of the heat transfer medium either at To direct heat exchanger 1 or to heating circuit 6. 20th
Weiterhin wird das Trinkwasser bevorzugt über einen Kaltwasseranschluss 1.2.1 der Sekundärseite 1.2 des Wärmeübertragers 1 zu- und von der Sekundärseite 1.2 des Wärmeübertragers 1 über einen Warmwasserabfuhranschluss 1.2.2 abgeführt. Dabei 25 wird außerdem besonders bevorzugt ein Strömungssensor 8 zur Erkennung eines Volumenstroms am Kaltwasseranschluss 1.2.1 verwendet. Furthermore, the drinking water is preferably supplied to the secondary side 1.2 of the heat exchanger 1 via a cold water connection 1.2.1 and discharged from the secondary side 1.2 of the heat exchanger 1 via a hot water discharge connection 1.2.2. A flow sensor 8 is also particularly preferably used for detecting a volume flow at the cold water connection 1.2.1.
Wesentlich für das erfindungsgemäße Verfahren ist nun, dass 30 zur Regelung einer Komforttemperatur auf der Sekundärseite 1.2 des Wärmeübertragers 1 das die Primärseite 1.1 durchströmende Wärmeträgermedium in einer zapffreien Phase solange erwärmt wird, bis am Temperatursensor 2 ein Vorgabewert erreicht ist. Oder nochmals in etwas anderen Worten ausgedrückt: Der Temperatursensor 2 wird während einer Zapfung als Auslauftempera- tursensor und in einer zapffreien Phase als Komforttemperatur5 sensor verwendet. It is now essential for the method according to the invention that 30 for regulating a comfort temperature on the secondary side 1.2 of the heat exchanger 1 is the one flowing through the primary side 1.1 Heat transfer medium is heated in a tap-free phase until a preset value is reached at temperature sensor 2. Or to put it another way: The temperature sensor 2 is used as an outlet temperature sensor during tapping and as a comfort temperature sensor when the tap is not in use.
Ferner ist besonders bevorzugt vorgesehen, dass eine Temperatur des Trinkwassers auf der Sekundärseite 1.2 des Wärmeübertragers 1 mittels des Temperatursensors 2 an einem bzw. dem 10 oben bereits erwähnten Warmwasserabfuhranschluss 1.2.2 gemessen wird bzw. dass der Temperatursensor 2 an dem Warmwasserabfuhranschluss 1.2.2 der Sekundärseite 1.2 des Wärmeübertragers 1, vorzugsweise in einem Innenraum des Heizgeräts (innerhalb der Gerätehülle), besonders bevorzugt direkt neben dem Wärme15 übertrager 1, insbesondere nicht mehr als 3 cm von diesem entfernt, angeordnet ist. Dabei gilt, dass die Regelung der Komforttemperatur umso besser funktioniert, je näher der Temperatursensor 2 am Wärmeübertrager 1 angeordnet ist. Furthermore, it is particularly preferably provided that a temperature of the drinking water on the secondary side 1.2 of the heat exchanger 1 is measured by means of the temperature sensor 2 at one or the above-mentioned hot water discharge connection 1.2.2 or that the temperature sensor 2 is measured at the hot water discharge connection 1.2.2 of the Secondary side 1.2 of the heat exchanger 1, preferably in an interior space of the heater (inside the device casing), particularly preferably directly next to the heat exchanger 1, in particular not more than 3 cm away from it. The rule here is that the control of the comfort temperature works better the closer the temperature sensor 2 is to the heat exchanger 1.
2020th
Bei alledem werden schließlich wahlweise (je nach dem welche Komponente tatsächlich vorhanden ist) der Temperatursensor 2, der Brenner 3, die Pumpe 4, das Ventil 7 und/oder der Strömungssensor 8 mit einer gemeinsamen Regeleinrichtung (nicht extra dargestellt) betrieben. 25 Bezugszeichenliste With all of this, the temperature sensor 2, the burner 3, the pump 4, the valve 7 and / or the flow sensor 8 are optionally operated with a common control device (not shown separately) (depending on which component is actually present). 25th List of reference symbols
1 Wärmeübertrager 1 heat exchanger
1.1 Primärseite des Wärmeübertragers1.1 Primary side of the heat exchanger
1.2 Sekundärseite des Wärmeübertragers1.2 Secondary side of the heat exchanger
1.2.1 Kaltwasseranschluss 1.2.1 Cold water connection
1.2.2 Warmwasserabfuhranschluss 1.2.2 Hot water discharge connection
2 Temperatursensor 2 temperature sensors
3 Brenner 3 burners
3.1 Wärmetauscher 3.1 heat exchanger
4 Pumpe 4 pump
5 Kreislauf 5 cycle
5.1 erste Stelle 5.1 first digit
5.2 zweite Stelle 5.2 second digit
6 Heizkreis 6 heating circuit
7 Ventil 7 valve
7.1 Steuermotor 7.1 Steering motor
8 Strömungssensor 8 flow sensor

Claims

Patentansprüche Claims
1. Verfahren zum Betrieb eines Heizgeräts, bei dem eine Primärseite (1.1) eines Wärmeübertragers (1) von einem bedarfsabhängig erwärmten Wärmeträgermedium durchströmt wird, bei dem eine Sekundärseite (1.2) des Wärmeübertragers (1) bei einer Zapfung von zu erwärmendem Trinkwasser durchströmt wird, bei dem eine Auslauftemperatur des gezapften Trinkwassers mit einem Temperatursensor (2) ermittelt wird, dadurch gekennzeichnet, dass zur Regelung einer Komforttemperatur auf der Sekundärseite (1.2) des Wärmeübertragers (1) das die Primärseite1. A method for operating a heater in which a primary side (1.1) of a heat exchanger (1) is flowed through by a heat transfer medium heated as required, in which a secondary side (1.2) of the heat exchanger (1) is flowed through when drinking water to be heated is drawn off, in which an outlet temperature of the tapped drinking water is determined with a temperature sensor (2), characterized in that the primary side to regulate a comfort temperature on the secondary side (1.2) of the heat exchanger (1)
(1.1) durchströmende Wärmeträgermedium in einer zapffreien Phase solange erwärmt wird, bis am Temperatursensor (2) ein Vorgabewert erreicht ist. (1.1) the heat transfer medium flowing through is heated in a tap-free phase until a preset value is reached on the temperature sensor (2).
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass eine Temperatur des Trinkwassers auf der Sekundärseite2. The method according to claim 1, characterized in that a temperature of the drinking water on the secondary side
(1.2) des Wärmeübertragers (1) mittels des Temperatursensors (2) an einem Warmwasserabfuhranschluss (1.2.2) gemessen wird. (1.2) of the heat exchanger (1) is measured by means of the temperature sensor (2) on a hot water discharge connection (1.2.2).
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Temperatursensor (2) während einer Zapfung als Auslauftemperatursensor und in einer zapffreien Phase als Komforttemperatursensor verwendet wird. 3. The method according to claim 1 or 2, characterized in that the temperature sensor (2) is used during a tap as an outlet temperature sensor and in a tap-free phase as a comfort temperature sensor.
PCT/DE2020/100755 2019-08-28 2020-08-26 Method for operating a heating device WO2021037311A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019123030.6A DE102019123030A1 (en) 2019-08-28 2019-08-28 Method of operating a heater
DE102019123030.6 2019-08-28

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0226246A1 (en) * 1985-12-04 1987-06-24 Nederlandse Industriele Maatschappij NEFIT B.V. Device for controlling a hot water supply
DE10154196A1 (en) 2001-11-07 2003-05-15 Siemens Building Tech Ag Burner regulating method for through-flow water heater, by using value between maximum switch-off temperature and maximum measured outlet temperature as next switch-off temperature
EP1310746B1 (en) 2001-11-07 2005-04-06 Siemens Building Technologies AG Device and method for control of fluid heater
US20100195991A1 (en) * 2009-02-03 2010-08-05 Sridhar Deivasigamani Apparatus and control method for a hybrid tankless water heater
US20180073749A1 (en) * 2016-09-14 2018-03-15 Lochinvar, Llc Methods And System For Controlling A Combination Boiler
US20180314275A1 (en) * 2017-04-27 2018-11-01 Noritz Corporation Heating and hot water supply apparatus and control method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0226246A1 (en) * 1985-12-04 1987-06-24 Nederlandse Industriele Maatschappij NEFIT B.V. Device for controlling a hot water supply
DE10154196A1 (en) 2001-11-07 2003-05-15 Siemens Building Tech Ag Burner regulating method for through-flow water heater, by using value between maximum switch-off temperature and maximum measured outlet temperature as next switch-off temperature
EP1310746B1 (en) 2001-11-07 2005-04-06 Siemens Building Technologies AG Device and method for control of fluid heater
US20100195991A1 (en) * 2009-02-03 2010-08-05 Sridhar Deivasigamani Apparatus and control method for a hybrid tankless water heater
US20180073749A1 (en) * 2016-09-14 2018-03-15 Lochinvar, Llc Methods And System For Controlling A Combination Boiler
US20180314275A1 (en) * 2017-04-27 2018-11-01 Noritz Corporation Heating and hot water supply apparatus and control method thereof

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