EP3495744A1 - Procédé de fonctionnement d'une installation de chauffage, appareil de chauffage pour une telle installation de chauffage ainsi qu'unité de commande et / ou de régulation pour une telle installation de chauffage - Google Patents

Procédé de fonctionnement d'une installation de chauffage, appareil de chauffage pour une telle installation de chauffage ainsi qu'unité de commande et / ou de régulation pour une telle installation de chauffage Download PDF

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Publication number
EP3495744A1
EP3495744A1 EP18207567.1A EP18207567A EP3495744A1 EP 3495744 A1 EP3495744 A1 EP 3495744A1 EP 18207567 A EP18207567 A EP 18207567A EP 3495744 A1 EP3495744 A1 EP 3495744A1
Authority
EP
European Patent Office
Prior art keywords
control
heat
heater
regulating unit
dispensers
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.)
Pending
Application number
EP18207567.1A
Other languages
German (de)
English (en)
Inventor
Gerald Holtz
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3495744A1 publication Critical patent/EP3495744A1/fr
Pending legal-status Critical Current

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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
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
    • 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
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
    • F24D11/0214—Central heating systems using heat accumulated in storage masses using heat pumps water heating system
    • 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
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1039—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump
    • 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
    • F24H15/305—Control of valves
    • F24H15/31—Control of valves of valves having only one inlet port and one outlet port, e.g. flow rate regulating valves
    • 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
    • F24H15/407—Control of fluid heaters characterised by the type of controllers using electrical switching, e.g. TRIAC
    • 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
    • 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
    • F24H15/136—Defrosting or de-icing; Preventing freezing
    • 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
    • F24H15/40—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
    • F24H15/45—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based remotely accessible

Definitions

  • the invention relates to a method for operating a heating system with a heater, one or more heat generators, such as radiators, underfloor heating or the like, one or more associated with the heat sink valves and at least one control for the heat donor.
  • the invention also relates to a heater for such a heating system and a control and / or regulating unit for such a heating system.
  • EP 2913594 A1 is a method for operating a bufferless heating system, in particular to ensure safe and proper operation, known.
  • a fluid serves as a buffer volume, wherein the control of a valve of a heat consumer, the buffer volume is controlled and / or controlled.
  • the general control takes over the control of valves for which the control must be designed.
  • the inventive method according to the main claim is characterized in that the heater with a heater associated control or control unit acts directly on at least one of the valves, bypassing and / or over-tuning of the control for the heat donor.
  • a conventional control and / or control can be exploited. So if, for example, a new heater is used in an existing heating system, can be dispensed with the buffer without the existing scheme for the heat donor would have to be replaced.
  • the heater is adapted to act directly on at least one of the valves so as to influence the additional buffer volume, depending on whether excess heat must be dissipated or heat in the heater is needed, for example for the regeneration of a heat pump.
  • Buffer volume is to be understood here as meaning an amount of heating fluid, as can be taken from buffer storage tanks existing in conventional processes.
  • the buffer volume is provided in that heating fluid within the various heating circuits of the heating system is specifically controlled and transported to the heating device. In this way, if the heater needs to give off excess heat, cool heating fluid can be transported to the heater. If, on the other hand, heat is required in the heater, for example for defrosting a heat pump, warm heating water is controlled in the direction of the heater at short notice.
  • the known radiators, underfloor heating or the like understood circulated by the heating fluid. Depending on the temperature and flow rate of the heating fluid or size of the heat dispenser, these give more or less heat in the surrounding space.
  • control and / or regulating unit acts in parallel with the regulation of the heat donor and overrules the regulation of the heat donor.
  • control and / or regulating unit acts serially to control the heat donor and takes over the regulation of the heat donor or overruled. It is understood by “take over” that no influence is made, but the regulation of the heat donor acts on the valves.
  • overruled is meant that the control of the heat dispensers is suppressed and imposed by the signals coming from the control and / or regulating unit signals to the valve or the valves.
  • a heat requirement or a necessary heat output for the heater is determined in the method and the control and / or regulating unit acts on the regulation of the at least one valve until the heat requirement or the heat output is satisfied, an extremely precise regulation of the necessary buffer volume is achieved reached.
  • the heater or the control and / or regulating unit does not affect the control of the heat donor or are influenced in the presence of a townabgabesch or a heat request from the heater, the heat donor or the control of the heat donor in that a heat release from the heater to the heat dispensers or a heat absorption of heat, coming from the heat dispensers, takes place.
  • An inventive heater for a heating system which is adapted to perform the inventive method, is characterized in that the control and / or regulating unit has a switching device by means of which it is able to act on the valves.
  • the heater can independently activate the necessary buffer volume in this way, bypassing the control of the heating system. In this way, it is not necessary to replace the control of the heating system when a heater is used, which relies on such buffer volume, but should be dispensed with an additional buffer memory.
  • the switching device consists at least essentially of a relay.
  • the inventive method is particularly suitable when the heater itself has a heat pump.
  • An inventive control and / or regulating unit for a heating system with a heater and with one or more heat donors, one or more, the heat donors associated valves and at least one control for the heat donors is characterized in that at least one output for a line to is provided at least one associated valve and that means are provided which implement the requirements of the heater.
  • Such a control and / or regulating unit can be accommodated directly in the heater. It is also possible to realize such a control and / or regulating unit as a separate, housed in a separate housing control unit. This can then be added later in an existing system. As a means may be provided in a simple embodiment, a switching device.
  • At least one input for at least one line is provided by the regulation of the heat dispensers.
  • control and / or regulating unit is particularly easy to control when the means comprise a further input which can be connected to the heater. There then the request signals of the heater can be introduced into the control and / or regulating unit.
  • control and / or regulating unit increases when the means comprise a switching device with which it is possible to switch between different control modes.
  • control modes is to be understood that the overall control of the heating system can be operated with or without such a buffer volume request.
  • FIG. 1 two types of heating systems 10 are shown in the two partial images a) and b), each having a heater 12.
  • heat donors 14 are provided, which are formed in the partial figure a) as radiators 16.
  • radiators 16 are shown in the sub-figure b) as heat source 14 underfloor heating 18.
  • a flow line 20 to the heat generators 14 and comes a return line 22 from the heat generators 14.
  • a pump 24 is used in the flow line 20.
  • the heat dispensers 14 are connected to the flow line 20 via a respective valve 26.
  • the reflux is in each case connected to the return line 22.
  • a control and / or regulating unit 27 is provided in the form of a switching device 28.
  • This switching device 28 acts in the exemplary embodiment FIG. 1 via a radio link 30 to the valves 26 a.
  • two of the three valves 26 to the heat source 14 are designed so that they can receive radio contact.
  • the actual thermostatic control of the valve 26 can be overruled.
  • a higher temperature or a Peltier element simulated a low temperature and the thermostat can be activated for the appropriate action.
  • the switching device 28 can connect via a line 32 with a valve 26 in operative connection.
  • the line 32 establishes a direct connection between the switching device 28 and an adjusting element 34 of the valve 26.
  • valve 26 not every valve 26 must be controllable by each heater 14 from the heater 12. It is sufficient to control valves 26 whose heat dispensers 14 can provide the necessary buffer volume. It should be noted that depending on the control state of the heating system 10 is not always each heat source 14 can provide a correspondingly tempered buffer volume.
  • the switching device 28 is characterized in that it is a simple relay 36.
  • This relay 36 in the case of direct coupling via the line 32, the adjusting element 34 directly energized and thus open or the adjustment 34 to ground and thus close.
  • the heater has a heat pump 38. This is not absolutely necessary, but especially for such heaters, the invention is particularly well.
  • FIG. 1 The two variants of FIG. 1 are simple embodiments in which the control and / or regulating unit 27 is a in FIG. 1 not shown control for the heat dispenser 14 overruled.
  • FIG. 2 a heating system 10 is shown, in which the heater 12 is also connected via a feed line 20 and valves 26 to the heat generators 14 and further connected via a return line 22 back.
  • a control 39 for the heat dispensers 14 in the form of control thermostats 40, which are connected via lines 42 to a control device 44.
  • the control unit 44 has switches 46, via which a control of the adjusting elements 34 of the valves 26 takes place via control lines 48.
  • the regulation for the heat dispenser 14 is designed as a 2-point control. This means that the valves 26 know only the two positions “closed” and “open”. For underfloor heating 18 such regulation due to the inertia of the underfloor heating 18 is sufficient.
  • the invention can also be used in regulations in which the valves can take between positions.
  • the heater 12 is connected via lines 50 directly to at least one of the control lines 48. Via this connection, it is possible for the heater 12 to directly influence the adjusting element 34 of the valve 26. For example, there may be an additional signal to open the valve 26.
  • a volume flow sensor 52 is introduced into the feed line 20.
  • the volume flow sensor 52 is able to indicate the flow rate per unit time. After all, it is also possible to use a volumetric flow sensor which merely indicates whether a certain minimum quantity flows through.
  • control and / or regulating unit 27 acts in parallel with the control unit 39 of the heat dispensers 14 and can thus overrule the regulation 39 of the heat dispensers 14 by opening the valve 26.
  • control and / or regulating unit 27 is arranged outside the heater 12. It is connected between the control unit 44 and the adjusting elements 34 of the valves 26.
  • control lines 48 are separated for these adjusting elements 34 and connected to inputs 54 and outputs 56 of the control and / or regulating unit 27.
  • the switching devices 28 are housed.
  • the heater 12 acts on the control and / or regulating unit 27 via a control line 58 and can thus directly influence the switching devices 28.
  • the buffer volume required by the heater 12 can thus be triggered via the control line 58.
  • the control and / or regulating unit 27 assumes the function of the control 39 by activating the switching devices 28 accordingly. In this constellation, the control and / or regulating unit 27 acts in series with the control unit 39 for the heat dispensers 14.
  • the control and / or regulating unit 27 is designed so that when modernizing a heating system 10, in which a heater 12 is to be used with a heat pump 38, can be dispensed with a buffer memory.
  • a heating system 10 in which a heater 12 is to be used with a heat pump 38, can be dispensed with a buffer memory.
  • only individual control lines 48 are to be disconnected and connected to the inputs 54 and the outputs 56 of the control and / or regulating unit.
  • the control and / or regulating unit 27 is connected to the heater 12, so that the needs of the heater 12 can be considered.
  • FIG. 4 An integration of the control and / or regulating unit 27 with the control unit 44 is in FIG. 4 shown.
  • a housing 60 the two units 27 and 44 are housed.
  • the lines 42 of the control 39 are interrupted and connected to the inputs 54 and the outputs 56, respectively.
  • On the housing 60 and the control line 58 is connected, which connects the heater 12 with the control unit 27.
  • the volume flow sensor 52 is connected via further lines 62 to the housing 60 and thus connected to the control or regulating unit 27.
  • FIG. 4 It can also be seen that there are also lines 42 which are not interrupted but are connected directly to the adjusting element 34 of the valves 26. It is therefore clear that mixed forms can always be configured. Especially in older heating systems 10, which have partially decentralized lines 42, this is a considerable advantage.
  • FIG. 5 an embodiment of such a control and / or regulating unit 27 is shown in a housing 60.
  • means 63 are integrated in the form of a computer unit 64, which correspond to the inputs 54 and the outputs 56 and can also be connected to a connection for the control lines 58 from the heater 12. It is not shown that the further lines 62 from the volume flow sensor 52 can also be connected to the means 63 or the computing unit 64. In the computer unit 64, the requirements of the heater 12 are then implemented.
  • control and / or regulating unit 27 can also be used for a conventional control and represents an option for the inventive bufferless control.
  • the heater 12 is a request to the control and / or regulating unit 27, which then calculates which heat source 14 must be controlled as. For this purpose, the position of the switching device 68 accordingly.
  • FIG. 6 illustrated method for a heating system 10 in an embodiment according to the embodiment according to the FIG. 5 described. While in one embodiment, after FIG. 1 the inventive method is performed directly in the heater 12, it runs in the embodiment according to FIG. 5 on the arithmetic unit 64.
  • a regular inquiry is made whether there is a signal from the heater 12, according to which a necessary heat request or necessary heat release can occur. If a corresponding trigger signal is present, a check is made in a next step 84, which control mode is set. This control mode is preset and leads to a corresponding path in the procedure.
  • a check of the status of the heating system 10. It is queried whether it makes sense at all and permissible to make an influence on the previous regulation. If, for example, all the valves 26 are closed, a start of the heater 12 is prevented. This can be interrogated by the control and / or regulating unit 27 on the basis of the settings in the switching device 28 and in the control unit 44. Also, the signal of the volume flow sensor 52 is evaluated. If the volume flow sensor 52 indicates a flow rate, at least one valve must be open. If no valve is opened, one or more valves 26 must first be open. Such a default is then made in step 88.
  • step 90 it is then determined how the request of the heater 12 can best be accommodated.
  • control and / or regulating unit 27 acts directly on at least one of the valves 26, bypassing the regulation for the heat dispensers 14.
  • a valve 26 is opened by a parallel energizing of the adjusting elements 34, such as in the FIGS. 1 and 2 is shown.
  • control and / or regulating unit 27 acts serially to control the heat dispenser 14 and the control of the heat source 14 takes over, as in the embodiments of the Figures 3 and 4 is shown.
  • step 90 takes place, depending on the set control mode, a calculation of the action to be taken.
  • a heat demand or a necessary heat output for the heater 12 is determined.
  • the previously determined measures are then carried out. This can be done by means of a pure control with control commands to the adjusting elements 34 of the valves 26 (energizing). In this case, for example, only a previously calculated minimum duration of the measure is monitored and the measure is set thereafter. It may also be a control with feedback, in which the achievement of a certain predetermined switching threshold is fed back to the controller and another control command is issued. In this case, it is then monitored, for example, whether certain temperature thresholds are reached, which then leads to a termination of the measure. Mixed forms are also possible if, for example, minimum running times are monitored and reached, but a defrosting operation has not yet led to the necessary temperature thresholds and therefore the measure used is still maintained.
  • control signals output by the control and / or regulating unit 27 or their effect are monitored and deviations regularly flow into an adaptation of the control signals.
  • step 82 the method returns again and begins with step 82 with the regular request for further signal of the heater 12.

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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)
  • Fluid Mechanics (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
EP18207567.1A 2017-11-30 2018-11-21 Procédé de fonctionnement d'une installation de chauffage, appareil de chauffage pour une telle installation de chauffage ainsi qu'unité de commande et / ou de régulation pour une telle installation de chauffage Pending EP3495744A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017221523.2A DE102017221523A1 (de) 2017-11-30 2017-11-30 Verfahren zum Betreiben einer Heizanlage, Heizgerät für eine solche Heizanlage sowie Steuer- und/oder Regeleinheit für eine solche Heizanlage

Publications (1)

Publication Number Publication Date
EP3495744A1 true EP3495744A1 (fr) 2019-06-12

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Application Number Title Priority Date Filing Date
EP18207567.1A Pending EP3495744A1 (fr) 2017-11-30 2018-11-21 Procédé de fonctionnement d'une installation de chauffage, appareil de chauffage pour une telle installation de chauffage ainsi qu'unité de commande et / ou de régulation pour une telle installation de chauffage

Country Status (2)

Country Link
EP (1) EP3495744A1 (fr)
DE (1) DE102017221523A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114608052A (zh) * 2022-02-25 2022-06-10 北京市京海换热设备制造有限责任公司 一种热电联供分布式供热站装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0729086A2 (fr) * 1995-02-25 1996-08-28 TEKMAR ANGEWANDTE ELEKTRONIK GmbH Procédé et dispositif pour réguler un système de chauffage par température basse
WO2011153572A1 (fr) * 2010-06-09 2011-12-15 Löblich & Hübner Energie-Effizienz Und Haustechnik Gmbh Procédé de réglage du débit volumique d'un milieu chauffant et/ou réfrigérant au moyen d'échangeurs de chaleur ambiante d'une installation de chauffage ou de refroidissement
EP2905671A2 (fr) * 2014-02-07 2015-08-12 Robert Bosch GmbH Procédé de synchronisation d'une installation thermique avec un système thermique
EP2913594A1 (fr) 2014-02-28 2015-09-02 Robert Bosch Gmbh Procédé de fonctionnement d'une installation de chauffage sans ballon tampon, en particulier destiné à garantir un fonctionnement fiable et correct
DE102015114474A1 (de) * 2015-08-31 2017-03-02 Viessmann Werke Gmbh & Co Kg Wärmepumpenanlage und Verfahren zum Betrieb einer Wärmepumpenanlage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0729086A2 (fr) * 1995-02-25 1996-08-28 TEKMAR ANGEWANDTE ELEKTRONIK GmbH Procédé et dispositif pour réguler un système de chauffage par température basse
WO2011153572A1 (fr) * 2010-06-09 2011-12-15 Löblich & Hübner Energie-Effizienz Und Haustechnik Gmbh Procédé de réglage du débit volumique d'un milieu chauffant et/ou réfrigérant au moyen d'échangeurs de chaleur ambiante d'une installation de chauffage ou de refroidissement
EP2905671A2 (fr) * 2014-02-07 2015-08-12 Robert Bosch GmbH Procédé de synchronisation d'une installation thermique avec un système thermique
EP2913594A1 (fr) 2014-02-28 2015-09-02 Robert Bosch Gmbh Procédé de fonctionnement d'une installation de chauffage sans ballon tampon, en particulier destiné à garantir un fonctionnement fiable et correct
DE102015114474A1 (de) * 2015-08-31 2017-03-02 Viessmann Werke Gmbh & Co Kg Wärmepumpenanlage und Verfahren zum Betrieb einer Wärmepumpenanlage

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