EP1447626A1 - Schichtenspeicher mit Rücklauftemperaturregelung - Google Patents
Schichtenspeicher mit Rücklauftemperaturregelung Download PDFInfo
- Publication number
- EP1447626A1 EP1447626A1 EP03028712A EP03028712A EP1447626A1 EP 1447626 A1 EP1447626 A1 EP 1447626A1 EP 03028712 A EP03028712 A EP 03028712A EP 03028712 A EP03028712 A EP 03028712A EP 1447626 A1 EP1447626 A1 EP 1447626A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- storage tank
- temperature
- hot water
- heat exchanger
- cold water
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 167
- 238000010438 heat treatment Methods 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims description 25
- 238000003809 water extraction Methods 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 5
- 239000003517 fume Substances 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 abstract 1
- 239000008236 heating water Substances 0.000 description 9
- 238000013517 stratification Methods 0.000 description 9
- 239000003651 drinking water Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 235000020188 drinking water Nutrition 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035622 drinking Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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
- F24D19/1066—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
- F24H15/175—Supplying heated water with desired temperature or desired range of temperature where the difference between the measured temperature and a set temperature is kept under a predetermined value
-
- 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
- F24H15/223—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
- F24H15/335—Control of pumps, 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
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
Definitions
- the invention relates to a hot water tank according to the preamble of the claim 1 and a method for storing hot water in a storage according to the preambles of claims 13 to 15.
- Hot water storage tanks currently available on the market, in particular stratified storage tanks, are built relatively complex, especially for regulating a hot water temperature (Storage tank charging temperature) at least two sensors in the storage tank and two more are arranged in an associated heating circuit via which such stratified storage are usually supplied with energy.
- a hot water temperature Storage tank charging temperature
- gas or oil burners and solar modules are usually used.
- For calmed flow Water supply and drainage to and from the stratified storage constructively complex measures are suggested, but leave anyway turbulence or false currents cannot be avoided with standard devices, that destroy the stratification of the storage, especially under load.
- the storage tank charging temperature at the hot water outlet on the hot water outlet Plate heat exchanger of the desired or set hot water temperature Known systems must use a temperature sensor at the hot water outlet of the plate heat exchanger. With this the storage tank charging temperature recorded and regulated. At least one other temperature sensor is in the stratified storage necessary to register a drop in the storage temperature and one Initiate reloading. There is at least one in the heating circuit for common heat generators Flow temperature sensor, but usually also a return temperature sensor.
- the invention is therefore based on the object, avoiding the above disadvantages Hot water storage and a temperature control for the same are available to provide, which is simple and inexpensive to set up and suitable, quickly to changes in temperature to react in the stratified storage and a desired temperature to provide the process water.
- a hot water storage tank in particular stratified storage tanks, with a cold water inlet, a process water extraction line and a cold water outlet leading away from the lower area thereof, in the course of which a circulation pump is arranged and which leads to a heat exchanger, from which a hot water line leads to the upper one region joins the stratified storage, wherein the heat exchanger is associated with a heating circuit (H) with heating device, a heating circuit pump and a supply and return line, and wherein a predetermined desired temperature (T soll) of the stratified storage the set point for the return temperature (T RL) of the heating circuit ( H) determined.
- a predetermined desired temperature (T soll) of the stratified storage the set point for the return temperature (T RL) of the heating circuit ( H) determined.
- the heat exchanger can be operated in cocurrent or, in particular in countercurrent, and is designed so that the heating circuit-side return temperature (T RL ) corresponds approximately to the hot water temperature (T WW ) in the hot water line between the heat exchanger and stratified storage tank.
- the circulating volume flows in the heating circuit and the domestic water circuit are designed such that an average temperature difference dT WT of approximately -50 K is achieved across the heat exchanger.
- the average temperature difference dT WT can be varied by a power rating on the circulation pump and / or the heating circuit pump. This means that the full device performance can be used for reloading the store, particularly at low store temperatures.
- the circulating volume flow in the process water circuit is preferably between approximately 200 l / h to 1000 l / h, in particular 400 l / h to 800 l / h and the circulating volume flow in the heating water circuit between about 400 l / h to 1400 l / h, especially 600 l / h up to 1200 I / h.
- This relationship offers a good approximation that the heating circuit return temperature of the heat exchanger approximately the hot water temperature in the process water circuit.
- another heat-emitting medium with a comparable heat capacity be used. When using a medium with a lower heat capacity the volume flow would have to be increased accordingly and vice versa.
- a further advantage is that if a predetermined switch-on temperature difference dT Eln is exceeded between the measured storage temperature T SP and / or return temperature T RL and the predetermined storage target temperature T Soll, a charging process can be triggered in which the circulation pump and / or the heater are switched on or over ,
- the temperature sensor in the stratified storage tank requests heat.
- the storage tank charging pump and burner are then switched on and the return temperature T RL of the plate heat exchanger is regulated to the storage tank temperature T Soll .
- Cold drinking water is sucked in or supplied from the bottom area of the stratified storage tank or, at the same time, tapped via the cold water inlet, heated in the plate heat exchanger to the set tank temperature T setpoint and stratified via the hot water line between the heat exchanger and stratified storage tank.
- the stratified storage tank is thereby heated from the top down to the storage tank set temperature T set .
- the switch-on temperature difference dT On is preferably the difference between the actual storage temperature minus the desired storage temperature in the range between -0.5 K and -15 K, preferably in the range between -1 K and -12 K and particularly preferably in the range between -2 K and -10 K.
- the adjustable control hysteresis the runtime or service life of the burner can be increased at a maximum switch-on temperature difference dT On of -10 K.
- a small hysteresis of -2 K convenience is gained by immediately reloading the memory.
- Another advantage of the invention is that when the temperature falls below a predetermined switch-off temperature difference dT Aus between the measured storage temperature T SP and / or return temperature T RL and the predetermined storage target temperature T Soll, the charging process can be canceled and the circulation pump and / or the heater can be switched off or on can be switched.
- the hot domestic or drinking water stratified from above reaches a temperature sensor in the lower area of the stratified storage tank with a predetermined temperature
- the storage tank charging is terminated.
- the switch-off point is below the set cylinder temperature T Soll , in order to guarantee a safe switch-off even with tolerances of the hot water temperature (cylinder charging temperature).
- the circulation pump and / or the heater are switched off or switched over from a running operating state.
- the switch-off temperature difference dT Aus is preferably in the range between -0.5 K and -15 K, preferably in the range between -1 K and -12 K, and particularly preferably in the range between -2 K and -10 K, especially at -5 K.
- the temperature sensor is arranged approximately at the level of the mouth of the cold water drain in the lower region of the stratified storage tank.
- the positioning of the temperature sensor for measuring the storage tank temperature T SP is particularly important for the performance data of the hot water storage tank. A quick response when drawing off hot water is ensured by positioning the temperature sensor near the bottom of the stratified storage tank at approximately the level of the mouth of the cold water drain.
- the temperature sensor is preferably arranged between 1 cm and 12 cm, and particularly preferably between 2.5 cm and 4 cm, above the floor level of the stratified storage tank. The temperature level, which drops from top to bottom, is thus completely recorded and rapid storage charging is ensured if the switch-on temperature difference dT On is undershot.
- the hot water tank in particular stratified tanks, has upper area of the stratified storage tank opens into the stratified storage tank Hot water pipe and a cold water drain in the lower area of the stratified storage tank with an upper or a lower water pipe and distribution device are assigned.
- An essential point is that by means of the water supply and distribution device Disturbances in the temperature profile in the bottom and top area of the stratified storage tank of the water contained in the stratified storage is reduced to a minimum can be.
- a temperature-precise stratification of the hot water from guaranteed top down.
- the Discharge of cold water has no effect on the main volume of the stratified storage tank Flow showing the temperature stratification within the stratified storage would disturb, is caused.
- Water supply and distribution device ensures that heating from the cold Condition triggers no noticeable temperature fluctuations during the tap, so that withdrawn drinking or industrial water up to high tap volumes of, for example 15 l / min to 25 l / min essentially always has the same temperature.
- the upper water guiding and distributing device has a about horizontally extending, acting as a baffle plate on which Hot water to be stored is directed so that there is upstream of the distribution plate forms a substantially horizontal flow.
- This ensures that what is to be stored and flows into the stratified storage Hot water does not flow in a jet into the main volume of the stratified storage tank and a mixing of the layers and a concomitant Disruption of the temperature stratification of that already contained in the stratified storage Water leads.
- control and distribution system according to the invention has a relative large dimensioning of the distribution plate provides for an optimized flow guidance to ensure.
- one is a wall of the stratified storage angled end of the distribution plate in the direction of an inflow side, that a flow acting in the direction of the inflow side is formed there.
- a hot water tap in the lid area of the stratified storage tank instead of.
- the fact that incoming hot water is redirected in terms of flow is that it is initially only in the uppermost volume area of the stratified storage there is a hot water tap even when the storage tank is completely empty practically immediately possible because the inflowing hot water cools down with a cold water layer below it does not take place.
- the object underlying the invention is furthermore, as mentioned, also solved by a process which, depending on the hot water withdrawal and the amount of the same provides for various operational steps.
- a predetermined switch-on temperature difference dT Ein between a predetermined storage tank target temperature T Soll and a measured storage tank temperature T SP is initially monitored. If this switch-on temperature difference dT On is exceeded, the circulation pump and / or the heater is switched on or switched over to draw off a volume flow of cold water from the cold water fume cupboard, heat it in the heat exchanger and store the volume flow as hot water via the hot water line in the stratified storage tank.
- a predetermined switch-off temperature difference dT Aus between the storage tank temperature T SP and a return temperature T RL in the heating circuit-side return line is reached, the circulation pump and / or the heater is switched off or on.
- the step of monitoring a specified switch-on temperature difference dT On is followed by switching on or switching over the circulation pump and / or the heater if the switch-on temperature difference dT On is exceeded.
- a volume flow of cold water is withdrawn from the cold water inlet, heated in the heat exchanger and stored again as hot water in the stratified tank via the hot water pipe.
- the circulation pump and / or the heater are switched off or switched over when a predetermined switch-off temperature difference dT off between the storage target temperature T SP and the actual storage temperature has been reached.
- the single figure shows a process water circuit B and a heating circuit H, which are coupled to one another via a plate heat exchanger 9 operated in direct current.
- the process water circuit B comprises a cold water inlet 12 which is connected to a cold water drain 4 of a stratified storage tank 6.
- a circulation pump 7 is arranged in the cold water drain 4, which transports cold water to the plate heat exchanger 9, where it is heated and fed as hot water via an hot water pipe 5 to an upper region of the stratified storage tank 6.
- the heated water can be removed via a process water extraction line 13, the mouth 2 of which is also arranged in the upper region of the stratified storage tank 6.
- a temperature sensor 1 for measuring a storage temperature T SP is arranged at the mouth 3 of the cold water drain 4.
- the heating circuit H comprises a burner heating water heat exchanger 10, which can be gas-operated, for example. From this heating water heat exchanger 10 runs a flow line 11 to the heating circuit water inlet of the plate heat exchanger 9 and a return line 14 with an associated return temperature sensor 15 and a heating circuit pump 8 from the heating circuit water outlet back to the heating water heat exchanger 10.
- the plate heat exchanger 9 is designed so that the hot water temperature T WW in the hot water line 5 between plate heat exchanger 9 and stratified storage tank 6 corresponds to the return temperature T RL .
- the target temperature T Soll of the stratified storage device 6 serves as a reference variable for the return temperature T RL .
- the temperature sensor for the return temperature T RL which is usually already provided in the heating circuit, is therefore sufficient to couple a stratified storage tank such as the stratified storage tank 6 shown to existing heating circuits. Furthermore, only the temperature sensor 1 for measuring the actual storage temperature T SP is necessary for regulation in order to be able to assess the temperature profile in the layer structure and to be able to use it for regulation.
- the circulating volume flows in the hot water circuit and in the heating circuit can be adjusted by means of the circulation pump 7 or the heating circuit pump 8 so that the return temperature T RL always corresponds approximately to the hot water temperature (storage tank charging temperature) T WW .
- the positioning of the temperature sensor 1 at the level of the mouth 3 of the cold water fume cupboard 4 ensures a quick reaction when reloading the stratified storage tank 6, as a result of which maximum performance indicators are achieved.
- a switch-on temperature difference dT Ein between a predetermined storage tank target temperature T Soll and a storage tank temperature T SP measured at temperature sensor 1 of -5 K is specified, then when this switch-on temperature difference dT On is exceeded, the circulation pump 7 and / or the heating water heat exchanger 10 is switched on or switched over.
- the heating circuit-side return temperature T RL is then regulated to the target cylinder temperature T target .
- Cold drinking water is heated in the plate heat exchanger 9 and stratified in the stratified storage tank 6 via the hot water line 5. This finally happens until a predetermined switch-off temperature difference dT Aus between the actual cylinder temperature T RL and the target cylinder temperature T Soll of, for example, -2 K is reached.
- the circulation pump 7 and / or the heating water heat exchanger 10 are switched off or on.
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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)
Abstract
Description
- Fig. 1
- eine Ausführungsform der Erfindung, bei der ein Brauchwasserkreislauf und ein Heizkreislauf über einen im Gleichstrom betriebenen Plattenwärmetauscher miteinander gekoppelt sind.
- B
- Brauchwasserkreislauf
- H
- Heizkreislauf
- TRL
- Rücklauftemperatur bzw. Speicheristtemperatur
- TSP
- Speichertemperatur
- TVL
- Vorlauftemperatur
- TWW
- Warmwassertemperatur
- TSoll
- Schichtenspeicher-Soll-Temperatur
- dTWT
- Wassertemperaturdifferenz
- TEin
- Einschalttemperatur
- TAus
- Ausschalttemperatur
- 1
- Temperaturfühler
- 2
- Brauchwasserauslass
- 3
- Mündung des Kaltwasserabzugs
- 4
- Kaltwasserabzug
- 5
- Warmwasserleitung
- 6
- Schichtenspeicher
- 7
- Umwälzpumpe
- 8
- Heizkreispumpe
- 9
- Plattenwärmetauscher
- 10
- Heizwasserwärmetauscher
- 11
- Vorlaufleitung
- 12
- Kaltwasserzulauf
- 13
- Brauchwasserentnahmeleitung
- 14
- Rücklaufleitung
- 15
- Rücklauftemperaturfühler
Claims (12)
- Warmwasserspeicher, insbesondere Schichtenspeicher (6), mit einem Kaltwasserzulauf (12), einer Brauchwasserentnahmeleitung (13) und einem aus dem unteren Bereich desselben wegführenden Kaltwasserabzug (4), in dessen Verlauf eine Umwälzpumpe (7) angeordnet ist und der zu einem Wärmetauscher (9) führt, von dem aus eine Warmwasserleitung (5) in den oberen Bereich des Schichtenspeichers (6) mündet,
dadurch gekennzeichnet, dass
der Wärmetauscher (9) einem Heizkreislauf (H) mit Heizgerät (10), Heizkreispumpe (8) und Vor- (11) und Rücklaufleitung (14) zugeordnet ist, und dass eine vorbestimmte Solltemperatur (TSoll) des Schichtenspeichers (6) den Sollwert für die Rücklauftemperatur (TRL) des Heizkreislaufs (H) bestimmt. - Warmwasserspeicher nach Anspruch 1,
dadurch gekennzeichnet, dass
der Wärmetauscher (9) im Gleich- oder, insbesondere im Gegenstrom, betreibbar und so ausgelegt ist, dass die heizkreisseitige Rücklauftemperatur (TRL) in etwa der Warmwassertemperatur (TWW) in der Warmwasserleitung (5) zwischen Wärmetauscher (9) und Schichtenspeicher (6) entspricht. - Warmwasserspeicher nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass
eine mittlere Temperaturdifferenz (dTWT) durch eine Leistungsstufung an der Umwälzpumpe (7) und/oder der Heizkreispumpe (8) variierbar ist. - Warmwasserspeicher nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass
bei Überschreitung einer vorgegebenen Einschalttemperaturdifferenz (dTEin) zwischen der gemessenen Speichertemperatur (TSP) und der vorbestimmten Speichersolltemperatur (TSoll) ein Ladevorgang auslösbar ist, bei dem die Umwälzpumpe (7) und/oder das Heizgerät (10) ein- oder umgeschaltet werden. - Warmwasserspeicher nach Anspruch 4,
dadurch gekennzeichnet, dass
die Einschalttemperaturdifferenz (dTEin) im Bereich zwischen -0,5 K und -15 K, vorzugsweise im Bereich zwischen -1 K und -12 K und besonders bevorzugt im Bereich zwischen -2 K und -10 K liegt. - Warmwasserspeicher nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass
beim Unterschreiten einer vorgegebenen Ausschalttemperaturdifferenz (dTAus) zwischen der gemessenen Speichertemperatur (TSP) und der vorbestimmten Speichersolltemperatur (TSoll) der Ladevorgang abbrechbar ist, und die Umwälzpumpe (7) und/oder das Heizgerät (10) aus- oder umgeschaltet werden. - Warmwasserspeicher nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass
zur Temperaturregelung lediglich ein Temperaturfühler (1) im Schichtenspeicher (6) und ein Rücklauftemperaturfühler (15) im Bereich der Rücklaufleitung (14) des Heizkreislaufs (H) vorgesehen, insbesondere erforderlich, ist. - Warmwasserspeicher nach Anspruch 7,
dadurch gekennzeichnet, dass
der Temperaturfühler (1) in etwa auf Höhe der Mündung (3) des Kaltwasserabzugs (4) im unteren Bereich des Schichtenspeichers (6) angeordnet ist. - Warmwasserspeicher nach Anspruch 7 oder 8,
dadurch gekennzeichnet, dass
der Temperaturfühler (1) zwischen 2,0 cm und 10 cm über dem Bodenniveau des Schichtenspeichers (6) angeordnet ist. - Verfahren zum Speichern von Warmwasser in einem Speicher, insbesondere in einem Schichtenspeicher (6), mit einem Kaltwasserzulauf (12), einer Brauchwasserentnahmeleitung (13) und einem aus dem unteren Bereich desselben wegführenden Kaltwasserabzug (4), in dessen Verlauf eine Umwälzpumpe (7) angeordnet ist und der zu einem Wärmetauscher (9) führt, von dem aus eine Warmwasserleitung (5) in den oberen Bereich des Schichtenspeichers (6) mündet, insbesondere mit einem Wärmetauscher (9), der einem Heizkreislauf (H) mit Heizgerät (10), Heizkreispumpe (8) und Vor- (11) und Rücklaufleitung (14) zugeordnet ist,
gekennzeichnet durch
folgende Schritte im Fall keiner Brauchwasserentnahme:A) Überwachen einer vorgegebenen Einschalttemperaturdifferenz (dTEin) zwischen einer vorbestimmten Speichersolltemperatur (TSoll) und einer gemessenen Speichertemperatur (TSP);B) Einschalten oder Umschalten der Umwälzpumpe (7) und/oder des Heizgeräts (10) zum Abziehen eines Volumenstroms von Kaltwasser aus dem Kaltwasserabzug (4), Erwärmen desselben in dem Wärmetauscher (9) und Einspeichern des Volumenstroms als Warmwasser über die Warmwasserleitung (5) in den Schichtenspeicher (6), wenn die Einschalttemperaturdifferenz (dTEin) überschritten wird; undC) Ausschalten oder Umschalten der Umwälzpumpe (7) und/oder des Heizgeräts (10), wenn eine vorgegebene Ausschalttemperaturdifferenz (dTAus) zwischen der Speichertemperatur (TSP) und Speichersolltemperatur erreicht ist. - Verfahren zum Speichern von Warmwasser in einem Speicher, insbesondere in einem Schichtenspeicher (6), mit einem Kaltwasserzulauf (12), einer Brauchwasserentnahmeleitung (13) und einem aus dem unteren Bereich desselben wegführenden Kaltwasserabzug (4), in dessen Verlauf eine Umwälzpumpe (7) angeordnet ist und der zu einem Wärmetauscher (9) führt, von dem aus eine Warmwasserleitung (5) in den oberen Bereich des Schichtenspeichers (6) mündet, insbesondere mit einem Wärmetauscher (9), der einem Heizkreislauf (H) mit Heizgerät (10), Heizkreispumpe (8) und Vor- (11) und Rücklaufleitung (14) zugeordnet ist,
gekennzeichnet durch
folgende Schritte im Fall einer Brauchwasserentnahme, wenn diese geringer ist als der maximal förderbare Volumenstrom einzuspeichernden Warmwassers:A) Überwachen einer vorgegebenen Einschalttemperaturdifferenz (dTEin) zwischen einer vorbestimmten Speichersolltemperatur (TSoll) und einer gemessenen Speichertemperatur (TSP);B) Einschalten oder Umschalten der Umwälzpumpe (7) und/oder des Heizgeräts (10) zum Abziehen eines Volumenstroms von Kaltwasser aus dem Kaltwasserzulauf (12), Erwärmen desselben in dem Wärmetauscher (9) und Einspeichern des Volumenstroms als Warmwasser über die Warmwasserleitung (5) in den Schichtenspeicher (6), wenn die Einschalttemperaturdifferenz (dTEin) überschritten wird; undC) Ausschalten oder Umschalten der Umwälzpumpe (7) und/oder des Heizgeräts (10), wenn eine vorgegebene Ausschalttemperaturdifferenz (dTAus) zwischen der Speichertemperatur (TSP) und Speichersolltemperatur erreicht ist. - Verfahren zum Speichern von Warmwasser in einem Speicher, insbesondere in einem Schichtenspeicher (6), mit einem Kaltwasserzulauf (12), einer Brauchwasserentnahmeleitung (13) und einem aus dem unteren Bereich desselben wegführenden Kaltwasserabzug (4), in dessen Verlauf eine Umwälzpumpe (7) angeordnet ist und der zu einem Wärmetauscher (9) führt, von dem aus eine Warmwasserleitung (5) in den oberen Bereich des Schichtenspeichers (6) mündet, insbesondere mit einem Wärmetauscher (9), der einem Heizkreislauf (H) mit Heizgerät (10), Heizkreispumpe (8) und Vor- (11) und Rücklaufleitung (14) zugeordnet ist,
gekennzeichnet durch
folgende Schritte im Fall einer Brauchwasserentnahme, wenn diese größer ist als der maximal förderbare Volumenstrom einzuspeichernden Warmwassers:A) Überwachen einer vorgegebenen Einschalttemperaturdifferenz (dTEin) zwischen einer vorbestimmten Speichersolltemperatur (TSoll) und einer gemessenen Speichertemperatur (TSP);B) Einschalten oder Umschalten der Umwälzpumpe (7) und/oder des Heizgeräts (10) zum Abziehen eines Teilvolumenstroms von Kaltwasser aus dem Kaltwasserzulauf (12), Erwärmen desselben in dem Wärmetauscher (9) und Einspeichern des Volumenstroms als Warmwasser über die Warmwasserleitung (5) in den Schichtenspeicher (6), sowie Zuführen eines anderen Teilvolumenstroms von Kaltwasser aus dem Kaltwasserzulauf (12) über den Kaltwasserabzug in den Schichtenspeicher (6), wenn die Einschalttemperaturdifferenz (dTEin) überschritten wird; undC) Ausschalten oder Umschalten der Umwälzpumpe (7) und/oder des Heizgeräts (10), wenn eine vorgegebene Ausschalttemperaturdifferenz (dTAus) zwischen der Speichertemperatur (TSP) und Speichersolltemperatur erreicht ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE10304682A DE10304682B4 (de) | 2003-02-05 | 2003-02-05 | Schichtenspeicher mit Rücklauftemperaturregelung |
DE10304682 | 2003-02-05 |
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EP1447626A1 true EP1447626A1 (de) | 2004-08-18 |
EP1447626B1 EP1447626B1 (de) | 2011-04-27 |
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ID=32667995
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EP03028712A Expired - Lifetime EP1447626B1 (de) | 2003-02-05 | 2003-12-12 | Schichtenspeicher mit Rücklauftemperaturregelung |
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EP (1) | EP1447626B1 (de) |
DE (2) | DE10304682B4 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110160124A (zh) * | 2019-05-08 | 2019-08-23 | 河北建筑工程学院 | 一种增温式蓄热水箱的施工方法 |
Citations (7)
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---|---|---|---|---|
DE2201628A1 (de) * | 1972-01-14 | 1973-07-19 | Ctc Gmbh | Temperaturgesteuerte warmwasserbereitungsanlage |
EP0120493A2 (de) * | 1983-03-24 | 1984-10-03 | Friedrich Müller | Anordnung und Verfahren zur Warmwasser-Bereitung mittels eines durch einen Gegenstrom-Wärmetauscher geführten, von einem Fernwärme-Erzeuger angelieferten Fernwärme-Mediums |
DE3843376A1 (de) * | 1988-12-23 | 1990-07-05 | Buderus Heiztechnik Gmbh | Aufheizsteuerung eines brauchwasserspeichers |
GB2234337A (en) * | 1989-06-22 | 1991-01-30 | Terance Gerard Madigan | Domestic water heating assembly |
DE19508061A1 (de) * | 1995-02-23 | 1996-08-29 | Hellersdorfer Gebaeudeservice | Steuerung für eine Durchflußwarmwasserbereitungsanlage |
DE19855442A1 (de) * | 1997-12-01 | 1999-06-02 | Vaillant Joh Gmbh & Co | Speicheranordnung |
DE19912569A1 (de) * | 1999-03-22 | 2000-09-28 | August Broetje Gmbh | Wärmeerzeuger für Heizzwecke und Warmwasserbereitung |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4121953A1 (de) * | 1991-07-03 | 1993-01-14 | Ruhrgas Ag | Beheizungssystem zum kombinierten betrieb einer niedertemperatur-heizungsanlage und eines speicherbehaelters fuer warmes brauchwasser |
AT407095B (de) * | 1997-12-23 | 2000-12-27 | Austria Email Ag | Warmwasserspeicher |
-
2003
- 2003-02-05 DE DE10304682A patent/DE10304682B4/de not_active Expired - Fee Related
- 2003-12-12 EP EP03028712A patent/EP1447626B1/de not_active Expired - Lifetime
- 2003-12-12 DE DE50313649T patent/DE50313649D1/de not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2201628A1 (de) * | 1972-01-14 | 1973-07-19 | Ctc Gmbh | Temperaturgesteuerte warmwasserbereitungsanlage |
EP0120493A2 (de) * | 1983-03-24 | 1984-10-03 | Friedrich Müller | Anordnung und Verfahren zur Warmwasser-Bereitung mittels eines durch einen Gegenstrom-Wärmetauscher geführten, von einem Fernwärme-Erzeuger angelieferten Fernwärme-Mediums |
DE3843376A1 (de) * | 1988-12-23 | 1990-07-05 | Buderus Heiztechnik Gmbh | Aufheizsteuerung eines brauchwasserspeichers |
GB2234337A (en) * | 1989-06-22 | 1991-01-30 | Terance Gerard Madigan | Domestic water heating assembly |
DE19508061A1 (de) * | 1995-02-23 | 1996-08-29 | Hellersdorfer Gebaeudeservice | Steuerung für eine Durchflußwarmwasserbereitungsanlage |
DE19855442A1 (de) * | 1997-12-01 | 1999-06-02 | Vaillant Joh Gmbh & Co | Speicheranordnung |
DE19912569A1 (de) * | 1999-03-22 | 2000-09-28 | August Broetje Gmbh | Wärmeerzeuger für Heizzwecke und Warmwasserbereitung |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110160124A (zh) * | 2019-05-08 | 2019-08-23 | 河北建筑工程学院 | 一种增温式蓄热水箱的施工方法 |
Also Published As
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DE10304682A1 (de) | 2004-08-26 |
DE10304682B4 (de) | 2005-12-22 |
EP1447626B1 (de) | 2011-04-27 |
DE50313649D1 (de) | 2011-06-09 |
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