EP1310746A1 - Dispositif et procédé de regulation d'un chauffe-eau - Google Patents

Dispositif et procédé de regulation d'un chauffe-eau Download PDF

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Publication number
EP1310746A1
EP1310746A1 EP02023856A EP02023856A EP1310746A1 EP 1310746 A1 EP1310746 A1 EP 1310746A1 EP 02023856 A EP02023856 A EP 02023856A EP 02023856 A EP02023856 A EP 02023856A EP 1310746 A1 EP1310746 A1 EP 1310746A1
Authority
EP
European Patent Office
Prior art keywords
heat transfer
temperature
transfer medium
burner
rate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02023856A
Other languages
German (de)
English (en)
Other versions
EP1310746B1 (fr
Inventor
Harry Gerstner
Dieter Dr. Pfannstiel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Building Technologies AG
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Siemens Building Technologies AG
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Filing date
Publication date
Application filed by Siemens Building Technologies AG filed Critical Siemens Building Technologies AG
Publication of EP1310746A1 publication Critical patent/EP1310746A1/fr
Application granted granted Critical
Publication of EP1310746B1 publication Critical patent/EP1310746B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/08—Regulating fuel supply conjointly with another medium, e.g. boiler water
    • F23N1/082—Regulating fuel supply conjointly with another medium, e.g. boiler water using electronic means
    • 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
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
    • F24D19/1069—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water regulation in function of the temperature of the 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
    • F24H15/10—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
    • F24H15/184—Preventing harm to users from exposure to heated water, e.g. scalding
    • 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
    • F24H15/215—Temperature of the water before 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
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/238—Flow rate
    • 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
    • F24H15/269—Time, e.g. hour or date
    • 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
    • F24H15/345—Control of fans, e.g. on-off control
    • 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
    • F24H15/36—Control of heat-generating means in heaters of burners
    • 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
    • F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2223/00—Signal processing; Details thereof
    • F23N2223/08—Microprocessor; Microcomputer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2223/00—Signal processing; Details thereof
    • F23N2223/36—PID signal processing

Definitions

  • the present invention relates to an apparatus and a method for regulating Thermal baths according to the preambles of claims 1 and 11, a preferred one Use of the device and the method according to claim 25 and a Regulator for performing the method according to claim 26.
  • Such devices and methods for regulating thermal baths, in particular for Control of a hot water heater with a burner for heating a heat transfer medium, such as water, are already known, wherein there are basically two different principles here. This is the case with some manufacturers the process water or the heat transfer medium to be heated in a continuous flow principle directly heated by a burner via a heat exchanger, while at other manufacturers a second heat exchanger, i.e. a so-called secondary exchanger, for domestic water heating is used. Outline these two basic principles the representations in Figures 1 and 2, which are discussed in detail below.
  • the heat transfer medium is used either directly via a primary exchanger or indirectly using the heated water the heating is heated via a secondary exchanger and at suitable tapping points, for example in the kitchen or in the bathroom.
  • the regulation of the burner are carried out in the known prior art by measuring the Outlet temperature at the outlet of the primary exchanger or the secondary exchanger, the compared with a predetermined target temperature and the controller, for example one PI controller, is supplied to output a manipulated variable, the manipulated variable being, for example can be a signal to adjust the power of the burner.
  • the quantity of the heat transfer medium that is not measured represents a disturbance variable in the control loop and has a great influence on the dynamics of the control loop.
  • the object of the present invention is the known devices and methods to control thermal baths to improve that temperature fluctuations Avoided on the outlet side of the heat exchanger and a reliable one Regulation of the burner of the thermal baths can be achieved for different principles can.
  • the aim of the invention is therefore to maintain a constant outlet temperature at different To achieve disturbance variables.
  • the volume flow should be on the outlet side of the heat exchanger but cannot be measured by expensive volumetric flow meters, but the invention is based on the object of indirectly increasing the volume flow record in order to be able to use this for a feedforward control.
  • the present invention is not only intended for systems with direct heating of the heat transfer medium can be used in the primary exchanger, but also for all other systems such as in systems with secondary heat exchangers, which in all Usually only have a small buffer (in the order of approx. 1 l) must be kept on standby to bridge the time required enough energy around the secondary heat exchanger via a primary heat exchanger to make available, i.e. in addition to an outlet temperature control (primary heat exchanger) the invention is also intended for comfort temperature control (with secondary exchanger) be applicable.
  • the device according to the invention for regulating thermal baths has a burner for heating a heat transfer medium, an inlet for supplying the Heat transfer medium that has a certain inlet temperature at the inlet, one Spout for removing the heat transfer medium that has a specific one at the spout Has outlet temperature, and a controller that heats the heat transfer medium by means of a primary exchanger or a secondary exchanger at least depending a target temperature and the outlet temperature.
  • a primary exchanger or a secondary exchanger i.e. to determine the The controller measures the tapping amount of the heat transfer medium at a rate of increase the outlet temperature at a predeterminable burner output, with the aid of Rise rate calculates the amount of heat transfer medium removed becomes.
  • the mathematical basis for this calculation is the fact that the slew rate the outlet temperature with a constant burner output indirectly is proportional to the amount of heat transfer medium discharged, i.e. that a greater amount of heat transfer medium discharged at a lower rate of increase the outlet temperature of the heat transfer medium leads and vice versa.
  • the rate of increase can be achieved at a set target temperature the outlet temperature in each case at a predetermined, but at least constant burner output can be measured for the time of measurement.
  • the controller modulates the burner output, the controller parameters, i.e. for example the controller gain, based on the calculated amount of the discharged Heat transfer medium can be changed accordingly. For example, the controller sets determines that a large amount of heat transfer medium is removed, it does not have to - as in the prior art - on a corresponding drop in the outlet temperature "wait", but can directly control the control variable for the performance of the burner on the Coordinate the requested amount of heat transfer medium.
  • the controller advantageously has a memory for storing the smallest and largest Ramp rates of the outlet temperature for each adjustable target temperature on. As soon as the controller reaches the corresponding rate of increase Has measured outlet temperature, it compares this with the stored smallest or greatest rate of rise and stores the measured rate of rise then as the lowest or highest rate of increase in the memory, if the measured slew rate is less than the smallest stored one Rise rate or if this is greater than the largest stored Slew rate. This ensures that the smallest in each case and largest amounts of heat transfer medium (tapping quantities) removed and can be adapted during operation.
  • the control thus arranges at a set target temperature and at the predeterminable one Burner output the lowest rate of rise of the outlet temperature the largest amount of heat transfer medium that can be removed (largest draw-off amount) and the greatest rate of increase of the outlet temperature of the smallest dissipatable Amount of heat transfer medium (smallest tap quantity) and calculated based on the measured rate of increase the amount of heat transfer medium removed linear in relation to it.
  • this can be done by specifying of the two points (maximum tapping quantity, lowest rate of rise and minimum Tapping amount, highest rate of rise) in the x-y coordinate system, which are connected by a straight line, so that all other taps at one measured slew rate between the smallest and largest slew rate can be read directly.
  • the controller advantageously chooses to calculate the amount of heat transfer medium removed, i.e. for measuring the slew rate, as a predeterminable burner output about 60% to 100%, preferably about 80% of the burner output required at the maximum removable amount of the heat transfer medium at a set Target temperature off.
  • a predeterminable burner output for example the controller as predeterminable burner output, for example 80% of the required Burner output at maximum draw-off quantity, in this case 80% from 77.8% from of the burner output, which at a maximum target temperature of, for example 60 ° C and would be necessary with the maximum draw-off quantity (maximum operation of the burner).
  • the controller advantageously starts measuring the slew rate at a minimum outlet temperature and ends the measurement when the target temperature is reached. This has the advantage that in the case of modulating burners the burner anyway if the outlet temperature falls below a minimum and then at this burner start immediately with the measurement of the slew rate can be started to immediately measure the amount of heat transfer medium removed to obtain.
  • the controller starts the controller measures the rate of rise at a predeterminable temperature difference below the target temperature and ends again when it is reached the target temperature. This is useful, for example, if the heat exchanger is heated from the cold state, since then a minimum outlet temperature does not yet exist and the heat exchanger can only be heated up from below got to.
  • the controller advantageously measures the rate of rise each time the set temperature changes the outlet temperature at a target temperature assigned to this and predeterminable burner output.
  • the assigned and predeterminable Burner performance to measure the slew rate can also be used as an identification burner performance be designated.
  • the method according to the invention for regulating thermal baths is based on the aforementioned principles.
  • the heat transfer medium becomes the heat exchanger at the inlet of the heat exchanger fed and discharged via the outlet.
  • the outlet temperature detectable at the outlet together with a target temperature that can be determined by the operator of the thermal bath fed to the controller, the corresponding control difference from these forms two temperatures.
  • the controller additionally the outlet temperature is supplied. Based on the rate of increase the outlet temperature can thus be determined at a predeterminable burner output (identification burner output) the amount of heat transfer medium removed is calculated and the heating of the heat transfer medium can be regulated based on this amount.
  • the burner output is then advantageously used for larger quantities of dissipated heat transfer medium stronger and with smaller amounts of the removed heat transfer medium changed less.
  • the burner output depending on the set target temperature to a specifiable Maximum value limited which is a fraction of the burner output at maximum target temperature equivalent.
  • This limited burner output is calculated after the calculation the amount of heat transfer medium removed as an upper limit for the modulating control used, for example, when using a PI controller prevent overshoot of the outlet temperature and around the modulation to adjust the burner closer to the power currently required.
  • the limitation the setting range can be active in both comfort and phase-out mode and may be increased by a certain burner output (e.g. 5%), to compensate for tolerances.
  • the exact target temperatures are advantageously obtained as part of a calibration process at two different measuring points of the outlet or comfort temperature and calculates the target correction temperature on these at least two different ones Values of the target temperature, while all other values based on the target temperature a straight line between these two different values of the target temperature be linearly interpolated.
  • the inlet temperature of the heat transfer medium at the inlet of the heat exchanger is estimated without an inlet temperature sensor.
  • the heat transfer medium is heated by means of a secondary exchanger, so can measure the measured buffer medium temperature in the buffer medium storage as the inlet temperature (Domestic hot water tank or boiler) plus a correction temperature be used when the sensor is attached to the cold water side of the heat exchanger and the time of the discharge exceeds a predeterminable maximum time.
  • the buffer medium storage (hot water storage) is sufficient much heat transfer medium withdrawn, so that the temperature in the buffer medium storage corresponds approximately to the inlet temperature.
  • a predeterminable criterion can be used Time of removal of the heat transfer medium can be used.
  • this measured buffer medium temperature plus a correction temperature however only used if this is within a predeterminable (permissible) temperature range lies around a preferred mean value. With This is advantageous at around 15 ° C with a fluctuation range of around +/- 5 K.
  • the heating of the heat transfer medium in cyclic operation i.e. with very small amounts of dissipated heat transfer medium, after starting the burner from an ignition power as directly as possible to a predeterminable and storable clock power switched.
  • the last power before switching off is advantageously used as the cycle power of the burner or the minimum adjustable output of the burner is used.
  • the blower is switched on when the burner is switched off the burner is not switched off, but preferably continues at an ignition speed operated. This makes it possible to start the burner faster, what a "Sagging" of the outlet temperature reduced.
  • a controller for performing a method according to the present
  • the invention assigns at least one input for reading in or a processor Calculation of the difference between an adjustable target temperature and the outlet temperature a heat transfer medium that can be heated by a burner and at least one output for regulating the power of the burner, the controller has at least one further input for reading in the outlet temperature, the controller then the rate of rise of the outlet temperature at a Predeterminable burner power measures and based on the rate of increase discharged amount of the heat transfer medium is calculated. With the help of the calculated The controller can then regulate the amount of heat transfer medium removed Optimize heating of the heat transfer medium.
  • the controller advantageously changes the burner output after the calculation modulating the amount of heat transfer medium removed, the controller parameters changeable based on the calculated amount of the heat transfer medium are.
  • FIG 1 shows the schematic representation of a continuous flow heater with primary exchanger 7 (primary heat exchanger) by a burner 2 (only shown schematically) is heated.
  • the cold water KW is the primary exchanger via a cold water inlet 5 7 fed and heated there.
  • the heated water is at a tap 6 as Hot water taken from WW.
  • A is used to measure the outlet temperature ⁇ Off Outlet temperature sensor B3 (temperature sensor 9). Via a pressure switch (flowswitch) FS the hot water tap is recognized.
  • the burner 2 serves at the same time for heating a heating medium, such as water, for Heat supply to a house.
  • a heat exchanger is shown only schematically 8 with flow temperature sensor B2, return temperature sensor B7, flow pump or heating circuit pump Q1, consumer 3 (radiator) and water pipe 4.
  • FIG. 2 shows the schematic representation of a continuous flow heater with a secondary heat exchanger, where the cold water KW is not directly from burner 2, but via one Secondary exchanger 10 (secondary heat exchanger) is heated.
  • the secondary exchanger 10 is supplied with heat from the heating medium via a three-way valve UV the cold water warms up.
  • a discharge temperature sensor B3 is used for the measurement the outlet temperature ⁇ Off.
  • An inlet temperature sensor B5 and a buffer medium temperature sensor B4 is also indicated schematically.
  • a pressure switch is FS here on the outlet side at the tap 6 for measuring a tap of hot water WW arranged.
  • the heating circuit pump Q1 is in this case on the return side of the Boiler 8 in front of the return temperature sensor B7 and at the same time ensures circulation of the heating medium in the secondary exchanger 10.
  • an own domestic water circuit pump can also be used.
  • FIG. 3 shows - greatly simplified - the control structure.
  • the controller 1 controls the burner 2 by means of a manipulated variable, ie advantageously a signal for the burner's output.
  • the burner 2 represents the path to be controlled, which of course includes the heat exchanger, the cold water to be heated and all other disturbance variables and parts of the path in addition to the burner 2.
  • the outlet temperature ⁇ from is - as is known from the prior art - fed back and added to the set temperature ⁇ set with a negative sign, so that a temperature difference ⁇ can be supplied to the controller 1.
  • controller 1 is also supplied with the outlet temperature ⁇ off .
  • the basis for the detection of the amount of heat transfer medium removed is now the fact that a certain amount of energy must be supplied to the heat exchanger for each tapping amount in order to keep the outlet temperature ⁇ off constant at a specific inlet temperature ⁇ on. If more energy is supplied, the outlet temperature ⁇ off increases with a certain rate of increase v A. Therefore, if more energy is supplied to the heat exchanger than is required based on the tapping quantity, the return or outlet temperature ⁇ Off will increase.
  • the rate of increase v A is determined by the energy not required (excess energy). The higher the rate of rise v A , the lower the amount of hot water WW drawn, ie rate of rise v A and tap quantity are indirectly dependent on one another.
  • the identification burner output is therefore always dependent on the output of the maximum draw-off quantity calculated. This ensures that with this burner performance after calculating the tap quantity, i.e. after identification always in is close to the power actually required. With a very small tap quantity you, on the other hand, are too high in performance.
  • SdBwAusMax stands for upper limit of the switching difference for switching off the burner
  • SdBwAusMin stands for the lower limit of the switching difference for switching off the burner
  • SdOn stands for the lower switching differential for switching on the burner.
  • the burner output is activated for identification according to the table above when a hot water tap is detected and when burner 2 is switched on.
  • the outlet temperature ⁇ Off (or the return temperature for e.g. heating systems) will initially drop and then rise again (see Figure 4).
  • the rise in the outlet temperature ⁇ off (drop or rise gradient) is detected and the minimum of the outlet temperature ⁇ minimum is thus determined.
  • This minimum of the outlet temperature ⁇ Minimum is noted and the time is recorded from this point in time (time t 0 ).
  • the time is then measured until the discharge temperature ⁇ from the set temperature ⁇ has reached target (time t 1).
  • the difference temperature ⁇ Differenz between the set temperature Soll setpoint and the minimum temperature ⁇ minimum and the difference ⁇ t between the times t 1 and t 0 are then formed.
  • the ratio ⁇ to ⁇ t indicates the gradient of rise, ie the speed of rise v A of the outlet temperature ⁇ Aus at constant burner output and is therefore an indirect measure of the corresponding draw-off quantity.
  • the measured gradient of rise is compared with the stored minimum and maximum values. If the measured value is less than the stored minimum value (lowest rate of rise v Amin ), this value is then saved as the new minimum value.
  • Each measured slew rate v A which is greater than the stored value, indicates a smaller tap quantity.
  • the highest rate of rise vAmax (smallest tap quantity) is saved. If there are now smaller or larger rates of increase than the previously stored values, these are then stored as minimum or maximum values.
  • hot water WW is drawn off after the initial start-up with a maximum draw-off quantity. This allows the lowest rate of rise to be determined. For the greatest rate of rise, for example, twice the smallest rate of rise v amine can then be set as the new starting value. These values are then further adapted during operation.
  • the conversion quantity tapped in between is calculated. From this tapping quantity, it is then possible to switch over to the required burner output and the modulation controller with regard to the output adjustment can be enabled (see time t 1 in FIG. 4). The controller parameters of controller 1 can then be switched over depending on the determined tapping quantity.
  • time recording must begin at a specified ⁇ examen below the temperature setpoint ⁇ target .
  • the modulation controller 1 must be released prematurely. The following applies to the release of the modulation controller: If the outlet temperature ⁇ off is below the temperature setpoint ⁇ set minus a switch-on difference ⁇ and the runtime from this point in time t 0 is greater than 1 minute, for example, the modulation controller is released.
  • FIG. 5 shows the schematic representation of the setting of the starting power in the cyclical operation of the burner 2, that is to say with small tapping quantities. While the outlet temperature ⁇ off versus time was plotted in the upper part of FIG. 5, as in FIG. 4, the output of the burner 2 versus time is shown in accordance with the outlet temperature emperaturout off above. As soon as a cycle operation has been recognized, ie the tapping of particularly small amounts of hot water WW and the burner 2 have been switched off, the last-used output of the burner 2 is stored in a memory of the controller 1.
  • the burner 2 While the burner 2 remains switched off, it is possible to let the burner fan continue to run in order to get into the suitable speed range as quickly as possible when the burner is switched on again. As soon as the outlet temperature ⁇ Out crosses the lower limit of the switching difference SdEin, the burner 2 switches on again, using the previously “noted” power, ie the power stored in the controller 1, which can then also be used, for example, to measure the rate of increase vA if this has not been done before. After the identification phase (power constant), the modulation controller is released.
  • the burner output is shown in FIG. 5 after the burner is switched on again then set to minimum output if the burner output set last is lower than the minimum burner output.
  • FIGS. 6a and 6b show correction values for the comfort temperature control and the outlet temperature control, which can be used to correct the temperature setpoint ⁇ setpoint in order to compensate for a deviation from the realistic temperature values.
  • the measured outlet temperature ⁇ Off does not exactly match the specified temperature setpoint, both in outlet temperature control and in comfort temperature control, i.e. it there is an offset shift, which also depends on the set temperature setpoint ⁇ setpoint . This behavior can be corrected by the offset shift.
  • inventive method and the inventive device can, for example, a domestic water heater far more accurate and controlled more reliably, without causing large fluctuations of the outlet temperature ⁇ off.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Combustion (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
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  • Diaphragms For Electromechanical Transducers (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
EP02023856A 2001-11-07 2002-10-24 Dispositif et procédé de regulation d'un chauffe-eau Expired - Lifetime EP1310746B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10154198A DE10154198A1 (de) 2001-11-07 2001-11-07 Vorrichtung und Verfahren zur Regelung von Thermen
DE10154198 2001-11-07

Publications (2)

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EP1310746A1 true EP1310746A1 (fr) 2003-05-14
EP1310746B1 EP1310746B1 (fr) 2005-04-06

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EP02023855A Expired - Lifetime EP1310736B1 (fr) 2001-11-07 2002-10-24 Régulateur et méthode de régulation pour un brûleur
EP02023856A Expired - Lifetime EP1310746B1 (fr) 2001-11-07 2002-10-24 Dispositif et procédé de regulation d'un chauffe-eau

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EP02023855A Expired - Lifetime EP1310736B1 (fr) 2001-11-07 2002-10-24 Régulateur et méthode de régulation pour un brûleur

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AT (1) ATE335169T1 (fr)
DE (3) DE10154198A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTV20090034A1 (it) * 2009-03-05 2010-09-06 Giorgio Eberle Dispositivo per il miglioramento del bilancio energetico, particolarmente per caldaie per riscaldamento.
CN114251831A (zh) * 2021-08-24 2022-03-29 佛山市顺德区美的饮水机制造有限公司 即热式加热装置及其调控方法和装置、用水设备和介质
DE102021108035A1 (de) 2021-03-30 2022-10-06 Stiebel Eltron Gmbh & Co. Kg Warmwassergerät und Verfahren zum Steuern des Warmwassergerätes

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DE102019123030A1 (de) * 2019-08-28 2021-03-04 Viessmann Werke Gmbh & Co Kg Verfahren zum Betrieb eines Heizgeräts
WO2023235393A1 (fr) * 2022-06-01 2023-12-07 Laars Heating Systems Company Système et procédé de détermination de capacité de transfert thermique d'un chauffe-eau indirect

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ITTV20090034A1 (it) * 2009-03-05 2010-09-06 Giorgio Eberle Dispositivo per il miglioramento del bilancio energetico, particolarmente per caldaie per riscaldamento.
DE102021108035A1 (de) 2021-03-30 2022-10-06 Stiebel Eltron Gmbh & Co. Kg Warmwassergerät und Verfahren zum Steuern des Warmwassergerätes
CN114251831A (zh) * 2021-08-24 2022-03-29 佛山市顺德区美的饮水机制造有限公司 即热式加热装置及其调控方法和装置、用水设备和介质

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DE50207704D1 (de) 2006-09-14
EP1310746B1 (fr) 2005-04-06
ATE335169T1 (de) 2006-08-15
DE50202701D1 (de) 2005-05-12
EP1310736B1 (fr) 2006-08-02
EP1310736A2 (fr) 2003-05-14
DE10154198A1 (de) 2003-05-15

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