EP1795818B1 - Procédé pour préparer de l'eau chaude utilisant un chauffe-eau et un accumulateur stratifié - Google Patents

Procédé pour préparer de l'eau chaude utilisant un chauffe-eau et un accumulateur stratifié Download PDF

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Publication number
EP1795818B1
EP1795818B1 EP06024756.6A EP06024756A EP1795818B1 EP 1795818 B1 EP1795818 B1 EP 1795818B1 EP 06024756 A EP06024756 A EP 06024756A EP 1795818 B1 EP1795818 B1 EP 1795818B1
Authority
EP
European Patent Office
Prior art keywords
mass flow
heater
water
charging
temperature
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.)
Not-in-force
Application number
EP06024756.6A
Other languages
German (de)
English (en)
Other versions
EP1795818A1 (fr
Inventor
Ulrich Kröll
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
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Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1795818A1 publication Critical patent/EP1795818A1/fr
Application granted granted Critical
Publication of EP1795818B1 publication Critical patent/EP1795818B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/144—Measuring or calculating energy consumption
    • 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
    • F24H15/212—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
    • F24H15/305—Control of valves
    • F24H15/325—Control of valves of by-pass 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
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/335—Control of pumps, e.g. on-off control

Definitions

  • the invention relates to a method for hot water preparation with a heat generator and a stratified storage tank according to the preamble of claim 1.
  • Known stratified storage as for example DE 83 10 135 U1 show, have a water-filled storage container, in which due to the different density, a stratification between the located in the upper region of the storage tank warm water and the cold water located in the lower area.
  • a charging circuit is provided with a circulation pump, wherein the cooler water is conveyed from the lower region of the memory to a heat exchanger or a heat generator and undergoes heating there. The heated water is returned to the upper area of the storage tank. The warm water is taken from above via the hot water pipes leading to the connected taps and replaced by cold water supplied at the bottom.
  • a stable temperature stratification is also required during hot water removal and reloading.
  • the hot water supply has a flow guide in the form of a guide tube, which brings the supplied hot water of the charging circuit in the depth of the storage container.
  • a flow brake device is attached at the cold water outlet or cold water supply in the bottom region of the storage container.
  • various temperature sensors are known in connection with layer charge storage, with which, for example, the temperature of the entering into the heat generator or the temperature of the water mass flow exiting the heat generator or the hot water temperature in the storage tank can be detected.
  • a control device for the charging process is usually located in the control of the heat generator or the operation of the stratified charge storage is completely self-sufficient and independent of the state and on the type of heat generator.
  • d. H. Depending on the choice of Schichtlade appointmentsbauart and size, used charge pump and depending on the performance of the heat generator, specially adapted control devices would have to be created in order to achieve optimal interaction of the mentioned system components. This seems uneconomical from a manufacturing and logistic point of view. In addition, this would require a high configuration effort during installation on site and therefore may be error prone.
  • potential energy saving potential in a heating system and comfort potential for the plant users concerned may be given away if stratified storage tanks and heat generators are not optimally matched to each other.
  • the invention is based on the object to optimize the hot water with a heat generator and a stratified storage.
  • the method for hot water preparation with a heat generator and a stratified storage is characterized in that the control device is associated with the stratified charge storage for the loading and automatically adjusts to the plant situation.
  • the hot water preparation is optimized in conjunction with the associated heat generator and tuned to this.
  • a first function is provided for identifying the performance of the connected heat generator. This is activated on request and / or depending on operating situations.
  • the charge mass flow is increased from zero to a limit and the temperature of the water mass flow leaving the heat generator is detected.
  • the temperature rise per unit time is determined and stored in a function memory, so that can make good statements about the performance of the heat generator.
  • this will first function when commissioning the stratified charge storage system and / or activated after interruption of the power supply.
  • a second function is used to retrieve the maximum heat generator output and can be activated during hot water preparation, ie when the charge pump is switched on.
  • the charge mass flow is raised from an initial value at a fixed speed and the temperature of the water mass flow emerging from the heat generator is detected. If, as the mass flow increases, the temperature of the water mass flow leaving the heat generator increases, the mass flow of water is further increased. By contrast, the mass flow is reduced when the temperature of the water mass flow leaving the heat generator drops. In this case, the power limit of the heat generator was exceeded.
  • a third function includes the control logic of the stratified charge system during charging. This function is used in particular to regulate the operation of the charge pump, whereby it is determined which temperature sensors influence the charging pump with which default values. In general, the water mass flow during charging can be varied by regulating the power of the charge pump. Alternatively, this is also possible with a bypass control, wherein an electronically controlled valve is arranged in a bypass line bypassing the charge pump.
  • the inventive method is particularly well suited for instantaneous water heater, namely by fully exploiting the available power during charging or optimally introduced. It can be made in economic quantities a uniform control device for stratified storage, since individual solutions are not required. Furthermore, the commissioning of a generic heating system simplified by minimal configuration effort during installation on site.
  • the arrangement for carrying out the hot water preparation consists essentially of a heat generator 1 and a stratified storage tank 2 with a storage tank 3, in the bottom region at least one KaltwasserzuGermanrohr 4 and in the upper region at least one hot water supply pipe 5 opens.
  • About the heat generator 1 performs a charging circuit 6 with a charge pump. 8
  • Temperature sensors T1, T2, T3 are provided for detecting the temperature of the exiting from the heat generator, the entering into the heat generator 1 water mass flow and the hot water temperature in the storage tank. They are connected to a control device 7 in conjunction, as well as the built into the line to the heat generator 1 charge pump. 8
  • the charge pump 8 is when using a bypass control according to Fig. 2 combined with an electronically controlled valve 9, which is arranged in a bypass line 10 bypassing the charge pump 8.

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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)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Claims (8)

  1. Procédé de préparation d'eau chaude à l'aide d'un générateur de chaleur (1) et d'un accumulateur de charge à stratification (2), présentant un récipient d'accumulation (3) dans la partie du fond duquel débouche au moins un tube (4) d'amenée d'eau froide et dans la partie supérieure duquel débouche au moins un tube (5) d'amenée d'eau chaude, le circuit de charge (6) traversant le générateur de chaleur (1) étant raccordé à une pompe de charge (8), à des sondes de température (T1, T2, T3) prévues pour la température de l'écoulement massique d'eau qui pénètre dans le générateur de chaleur (1), la température de l'écoulement massique d'eau qui sort du générateur de chaleur (1) et/ou la température de l'eau chaude dans le récipient d'accumulation (3) et à un dispositif de régulation (7) de l'opération de charge,
    le dispositif de régulation (7) de l'opération de charge étant associé à l'accumulateur de charge à stratification (2),
    caractérisé en ce que
    le dispositif de régulation se place automatiquement en situation d'installation et optimise la préparation d'eau chaude avec
    une première fonction d'identification de la caractéristique de puissance du générateur de chaleur (1) raccordé,
    une deuxième fonction d'appel de la puissance maximale du générateur de chaleur (1) et
    une troisième fonction pour la logique de régulation du système de charge à stratification lors de l'opération de charge.
  2. Procédé selon la revendication 1, caractérisé en ce que pour l'identification de la caractéristique de puissance du générateur de chaleur (1) qui est raccordé, la première fonction peut être activée à la demande et/ou en fonction de situations de fonctionnement, l'écoulement massique de charge étant augmenté de zéro à une valeur limite et la température de l'écoulement massique d'eau sortant du générateur de chaleur (1) étant saisie, le dispositif de régulation (7) déterminant la caractéristique de puissance du générateur de chaleur (1) en particulier par l'intermédiaire de l'augmentation de température par unité de temps et la conservant en mémoire dans une mémoire de fonction.
  3. Procédé selon les revendications 1 ou 2, caractérisé en ce que la première fonction peut être activée lors de la mise en service du système d'accumulateur de charge à stratification et/ou après une interruption de l'alimentation en courant.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la deuxième fonction de demande de la puissance maximale du générateur de chaleur (1), par laquelle l'écoulement massique de charge est relevé d'une valeur initiale à une vitesse définie et la température de l'écoulement massique d'eau chaude sortant du générateur de chaleur (1) est saisie, est activée pendant la préparation d'eau chaude.
  5. Procédé selon la revendication 4, caractérisé en ce que l'écoulement massique d'eau est encore relevé si l'écoulement massique croissant augmente la température de l'écoulement massique d'eau sortant du générateur de chaleur (1) et en ce que l'écoulement massique est réduit si la température de l'écoulement massique d'eau sortant du générateur de chaleur (1) diminue.
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que la troisième fonction contient la logique de régulation du système de charge à stratification lors de l'opération de charge et en ce qu'avec cette fonction, en particulier la conduite de la pompe de charge (8) est régulée en déterminant à cet effet quelle sonde de température (T1, T2, T3) présentant quelles valeurs prescrites a une influence sur le fonctionnement de la pompe de charge (8).
  7. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que lors de l'opération de charge, l'écoulement massique d'eau est modifié par régulation de la puissance de la pompe de charge (8).
  8. Procédé selon l'une des revendications 1 à 7, caractérisé en ce que lors de l'opération de charge, l'écoulement massique d'eau est modifié à l'aide d'une régulation par dérivation, une soupape (9) à régulation électronique étant disposée dans un conduit de dérivation (10) qui contourne la pompe de charge (8).
EP06024756.6A 2005-12-08 2006-11-30 Procédé pour préparer de l'eau chaude utilisant un chauffe-eau et un accumulateur stratifié Not-in-force EP1795818B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005058570A DE102005058570B3 (de) 2005-12-08 2005-12-08 Verfahren zur Warmwasserbereitung mit einem Wärmeerzeuger und einem Schichtladespeicher

Publications (2)

Publication Number Publication Date
EP1795818A1 EP1795818A1 (fr) 2007-06-13
EP1795818B1 true EP1795818B1 (fr) 2016-02-24

Family

ID=37778615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06024756.6A Not-in-force EP1795818B1 (fr) 2005-12-08 2006-11-30 Procédé pour préparer de l'eau chaude utilisant un chauffe-eau et un accumulateur stratifié

Country Status (2)

Country Link
EP (1) EP1795818B1 (fr)
DE (1) DE102005058570B3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT504286B1 (de) 2006-09-18 2008-09-15 Vaillant Austria Gmbh Verfahren zur ladung eines warmwasserspeichers
DE102007033564B3 (de) * 2007-07-19 2009-01-02 Robert Bosch Gmbh Verfahren zum Betreiben eines Schichtladespeichers und Trinkwarmwassersystem
FR2928442B1 (fr) * 2008-03-06 2010-12-17 Mer Joseph Le Installation de production d'eau chaude sanitaire
CN102865663B (zh) * 2012-08-03 2015-04-15 苏州新亚科技有限公司 一种镀锌钢板热水器防锈水箱及其防锈蚀的方法
EP3062027B1 (fr) * 2015-02-25 2018-06-06 Vaillant GmbH Systeme d'accumulation de chaleur et procédé pour son opération

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8310135U1 (de) * 1983-04-07 1983-08-11 Nova-Apparatebau GmbH + Co, 7710 Donaueschingen Warmwasser-schichtenspeicher
DE3835096A1 (de) * 1988-10-14 1990-04-19 Sandler Martin Dipl Ing Fh Warmwasser-schichtspeicher
DE19515467A1 (de) * 1995-04-27 1996-10-31 Marek Dipl Ing Gross Meßgerät und Verfahren zur Wärmeleistungsmessung in Fernwärmeanlagen
DE19924758B4 (de) * 1999-05-29 2012-04-12 Robert Bosch Gmbh Einrichtung zum Erwärmen von Brauchwasser
DE10032714A1 (de) * 2000-07-07 2002-01-24 Solvis Solarsysteme Gmbh Anordnung und Verfahren zur Bereitstellung von warmem Brauchwasser

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DE102005058570B3 (de) 2007-05-24
EP1795818A1 (fr) 2007-06-13

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