EP0807790B1 - Anordnung und Verfahren zur Bereitstellung von warmem Brauchwasser - Google Patents
Anordnung und Verfahren zur Bereitstellung von warmem Brauchwasser Download PDFInfo
- Publication number
- EP0807790B1 EP0807790B1 EP97107971A EP97107971A EP0807790B1 EP 0807790 B1 EP0807790 B1 EP 0807790B1 EP 97107971 A EP97107971 A EP 97107971A EP 97107971 A EP97107971 A EP 97107971A EP 0807790 B1 EP0807790 B1 EP 0807790B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- heat exchanger
- circuit
- fluid
- temperature sensor
- 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.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims description 24
- 239000012530 fluid Substances 0.000 claims abstract description 48
- 230000008569 process Effects 0.000 claims description 15
- 230000007423 decrease Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 8
- 239000008236 heating water Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 235000006506 Brasenia schreberi Nutrition 0.000 description 2
- 241000270282 Nerodia Species 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000003809 water extraction 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
Definitions
- the invention relates to an arrangement and a method for providing hot domestic water with a primary circuit with a fluid, a warm or hot fluid providing means and a conveyor for the fluid, a secondary circuit for the domestic water to be heated, a heat exchanger for heat transfer from the fluid of the primary circuit to the process water in the secondary circuit, a control device for the Conveyor and one temperature sensor each in the primary circuit and in the secondary circuit.
- the hot domestic water is conventionally provided by means of a Heat source in a domestic hot water tank, a so-called boiler, which is included also takes on the task of intermediate energy storage.
- This fluid is usually also water, but for example that Water from a heating system that is not for normal consumption or Use is intended.
- the process water is heated using an external heat exchanger heated as a continuous flow heater.
- the fluid or heating water pumped in a primary circuit through the heat exchanger, which contains the process water warmed in the secondary circuit. So there is cold water in the secondary circuit fed to the heat exchanger and there to the desired temperature brought by the heat from the heating water from the heat generator is transferred to the domestic water by the heat exchanger. After passing through the heat exchanger, the process water is heated Form available.
- stratified loaders such as those from the EP 0 384 423 B1 are known. They are in a storage vessel at the top hotter, the cooler water or fluid amounts are stacked on top of each other. The primary circuit draws hot fluid from the top of the storage vessel flows through the heat exchanger mentioned and then becomes corresponding cooled down again in a range corresponding to the temperature Storage vessel between the amounts of water or fluid located there sandwiched.
- Such a control device is known for example from CH-PS 285 708; there is a temperature sensor provided, either in the primary circuit or but is also provided in the secondary circuit and on a three-way valve acts and so on a change in the mixing ratio of the heating water in the primary circuit the primary temperature in the heat exchanger regulates.
- EP 0 226 246 A1 describes a control device for the hot water supply known, each with a temperature sensor in the primary circuit and in the secondary circuit is equipped. The proposed temperature control seems however not being optimal yet.
- the object of the invention is to provide an arrangement and a method of hot domestic water to propose that without the mentioned such Flow monitor manages and at the same time an inexpensive control option creates.
- this object is achieved in that in the primary circuit in the heat exchanger or in the outlet side with respect to the heat exchanger Line of the first temperature sensor is arranged that in the secondary circuit in Heat exchanger or in the output side with respect to the heat exchanger Line of the second temperature sensor is arranged, and that the control device has a circuit that the circuit at below a setpoint falling temperature and / or a positive setpoint Temperature gradients and / or a falling below a negative setpoint Temperature gradients on the second temperature sensor the conveyor switches on and that the circuit when the temperature rises above a setpoint and / or a temperature gradient on a setpoint exceeding the first temperature sensor switches off the conveyor.
- the object is achieved in that both in the primary circuit in the heat exchanger or in the outlet side with respect to the heat exchanger Pipe the temperature that is measured in the secondary circuit in the heat exchanger or in the outlet side with respect to the heat exchanger Line the temperature is measured, and that at below a set point falling temperature and / or rising above a positive setpoint Temperature gradients and / or temperature gradients falling below a negative setpoint in the heat exchanger or in the one leading away from the heat exchanger Line in the secondary circuit, the conveyor, the fluid in the primary circuit begins to promote, and that when the temperature rises above a setpoint and / or increasing the temperature gradient in the heat exchanger via a setpoint or in the line away from the heat exchanger in the primary circuit Promotion of the fluid in the primary circuit is ended.
- This falling temperature is immediately recognized by the temperature sensor. This can happen in a variant that this temperature below a Desired value falls, in a preferred variant this is simply due to the temperature gradient detected.
- the latter also has the advantage that with one Commissioning of the control with cold storage (initial commissioning) of the conveyor is not switched on, although a setpoint is undershot.
- the conveyor does not switch off yet, as there is still hot water is removed and thus there is still a need for heat supply.
- the temperature gradient at this second temperature sensor in the secondary circuit now very low or fluctuates around a zero value and the temperature is therefore constant and also above the setpoint, but it is just fine here not a switch-on criterion: the conveyor is still running.
- a particularly quick response is guaranteed if the respective Temperature sensor provided on the output side of the heat exchanger are. In certain applications, it may even be useful to use the temperature sensor to be provided within the heat exchanger.
- the denser the Temperature sensors on the heat exchanger the faster they can be Detect temperature changes and thus the emergence of unwanted Prevent cold water areas in the hot water delivery.
- the conveyor especially a pump, in the primary circuit should follow Possibility in the one leading away from the heat exchanger, that is, in its outlet side Line be arranged. This leads to the conveyor colder primary fluid flows through, especially when stationary, which is cheaper for their durability and ease of maintenance. It is special useful if the first temperature sensor between the heat exchanger and the conveyor is arranged.
- the arrangement and the method can be used particularly well if the warm or hot fluid is provided by a buffer, but
- the flow of a boiler, a district heating network or the like are also suitable.
- a third temperature sensor is also provided, which is either in the buffer memory or is in the line from the buffer tank to the heat exchanger.
- the control device has a further circuit with which the temperature determined by the third temperature sensor when determining the Setpoint of the temperature at the second temperature sensor is used. In this way, the case can be taken into account that possibly there is not enough warm or hot fluid in the buffer storage, for example when starting up the system for the very first time or simply afterwards previous considerable consumption. It can then be lowered the setpoints of the temperatures on the second temperature sensor prevented be that the buffer continuously releases more content without it is possible at all, the otherwise desired by the control device To reach target values.
- the invention by observing the storage temperature in relation to the desired water temperature, a thorough mixing of the memory due to an excessive flow rate of the primary circuit prevent and maintain standby. For that a diagram of the temperature profile at various measuring points on Heat exchangers and storage tanks with regard to typical user behavior, i.e. there were different water quantities and the Aufund Simulated turning off the tap. If the heat storage is not the has the necessary temperature for the hot water target temperature, the Target hot water temperature from the storage tank temperature minus one adjustable difference is calculated. The hot water target temperature is therefore not an absolute value, but - if the storage tank temperature is too low - also dependent on this.
- the storage tank temperature during operation falls below that for the hot water setpoint control required temperature level falls, but would Run the pump full to get as close as possible with the maximum available energy to get to the set hot water setpoint.
- the primary return temperature rises unnecessarily high on. This can lead to rapid disintegration or temperature stratification come in the store, causing a further drop in the store temperature Consequence. Therefore, the actual hot water setpoint can be taken from the Storage temperature minus the set difference can be calculated. As a result, the primary flow is exceeded above a desired one Limit value avoided and the storage stratification remains under all operating conditions receive.
- a pump runtime is useful to after switching on Temperature fluctuations that are regarded as a switch-off criterion could bridge. Furthermore, it is normally chosen so that enough heat energy is pumped into the system to the heat exchanger and thus the hot water outlet to the required temperature bring.
- the conveyor device has a speed-controlled pump and the control device has a circuit, which depend on the temperature gradient at the second temperature sensor also the conveyor speed of the conveyor, for example the speed, regulates.
- one or both temperature sensors preferably together with the heat exchanger within the insulation of the Buffer memory are arranged. This allows the heat exchanger to reach the target temperature be kept, simply by heat conduction automatically from the buffer memory.
- the control device can also be a special combination of different Use process stages. So for a limited period of time For example, a startup control program can be run for 30 seconds provides a constant predetermined speed of the pump, or else one special P-I-D setting that react very quickly to changes in temperature can. This is precisely the reason why the The target temperature is maintained and cold water holes avoided.
- the use of the temperature gradient amount as a switch-on criterion also proved to be useful for the following reason: After the Turning on the hot water tap is in the heat exchanger Process water at a slightly higher level than this a short one Continue the thermal sensor on the output side of the heat exchanger can determine.
- This effect is, among other things, that due to convection currents on the primary side in the heat exchanger there is a whole sets a slightly higher temperature than when the secondary circuit is not running can be the case in industrial water. This is usually hardly an effect measurable.
- control device also sets it in the case of the temperature gradient, its amount is fixed due to its falling and can react accordingly.
- the primary circuit 10 begins on the left with a device that is warm or hot Provides fluid, here a buffer store 11. From this buffer store 11 leads a line 12 to a heat exchanger 5. After passing through of the heat exchanger 5 and the delivery of thermal energy in the same leads the fluid in the primary circuit 10 back via an outlet line 13 to the buffer store 11.
- a conveying device here a pump 14 is provided between the heat exchanger 5 and the pump 14 a first temperature sensor 17 is arranged.
- the hot fluid comes from the upper area of the buffer storage 11 removed, fed to the heat exchanger 5 and by the pump 14 conveyed returned to the lower area of the buffer memory 11.
- hot fluid thus remains undisturbed upper area, where the line 12 also pulls it off.
- extra hot fluid or thermal energy for heating existing fluids can by layering fluids heated by solar collectors and / or by Installation of burners (each not shown) or in another way to be provided.
- the secondary circuit 20 on the right begins with a cold water supply 22, with the cold process water (drinking water, wash water etc.) the Heat exchanger 5 is supplied.
- the heat energy is in the heat exchanger 5 of the primary circuit 10 running in counterflow.
- the process water in turn leaves it and flows through an outlet-side line 23 to the hot water withdrawal point.
- Funding in the secondary cycle can, for example take place that the cold water supply takes place under pressure and the hot water withdrawal point This pressure is blocked by a tap if necessary.
- the temperature sensor 27 Located in line 23 for the hot water or actual service water a temperature sensor 27.
- the temperature sensor 27 thus sets the hot water temperature as close as possible to the heat exchanger 5.
- the temperature sensors 17 and 27 report their values to a control device, not shown.
- a third temperature sensor 37 which is the temperature of the hot one Receives fluids in the upper region of the buffer memory 11.
- the control device then controls the pump 14, on the one hand that Switching on and off and, on the other hand, the speed or Conveying speed.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Control Of Combustion (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Description
- 5
- Wärmetauscher
- 10
- Primärkreislauf
- 11
- Pufferspeicher
- 12
- Leitung
- 13
- Leitung
- 14
- Pumpe
- 17
- Temperaturfühler
- 18
- Fluideinschichtvorrichtung
- 20
- Sekundärkreislauf
- 22
- Kaltwasserzuleitung
- 23
- Leitung zum Warmwasserentnahmepunkt
- 27
- Temperaturfühler
- 37
- Temperaturfühler
Claims (12)
- Anordnung zur Bereitstellung von warmem Brauchwasser miteinem Primärkreislauf (10) mit einem Fluid, einer warmes oder heißes Fluid bereitstellenden Einrichtung (11) und einer Fördereinrichtung (14) für das Fluid,einem Sekundärkreislauf (20) für das zu erwärmende Brauchwasser,einem Wärmetauscher (5) zur Wärmeübertragung vom Fluid des Primärkreislaufs (10) auf das Brauchwasser im Sekundärkreislauf (20),einer Regelungseinrichtung für die Fördereinrichtung (14) undje einem Temperaturfühler (17, 27) im Primärkreislauf (10) und im Sekundärkreislauf (20),
dass im Sekundärkreislauf (20) im Wärmetauscher (5) oder in der bezüglich des Wärmetauschers (5) ausgangsseitigen Leitung (23) der zweite Temperaturfühler (27) angeordnet ist,
dass die Regelungseinrichtung eine Schaltung aufweist,
dass die Schaltung bei unter einen Sollwert sinkender Temperatur und/oder einem einen positiven Sollwert übersteigenden Temperaturgradienten und/oder einem einen negativen Sollwert unterschreitenden Temperaturgradienten am zweiten Temperaturfühler (27) die Fördereinrichtung (14) einschaltet und
dass die Schaltung bei über einen Sollwert steigender Temperatur und/oder einem einen Sollwert übersteigenden Temperaturgradienten am ersten Temperaturfühler (17) die Fördereinrichtung (14) ausschaltet. - Anordnung nach Anspruch 1,
dadurch gekennzeichnet, dass die Fördereinrichtung (14) im Primärkreislauf (10) in der von dem Wärmetauscher (5) wegführenden Leitung (13) angeordnet ist, wobei der erste Temperaturfühler (17) zwischen Wärmetauscher (5) und Fördereinrichtung (14) angeordnet ist. - Anordnung nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass der erste und der zweite Temperaturfühler (17, 27) dicht benachbart zu den jeweiligen Ausgängen des Wärmetauschers (5) angeordnet sind. - Anordnung nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass die warmes oder heißes Fluid bereitstellende Einrichtung (11) einen Pufferspeicher aufweist,
dass ein dritter Temperaturfühler (37) im Pufferspeicher (11) oder in der Leitung vom Pufferspeicher (11) zum Wärmetauscher (5) vorgesehen ist, und
dass die Regelungseinrichtung eine weitere Schaltung besitzt, mit der die vom dritten Temperaturfühler (37) ermittelte Temperatur bei der Festlegung des Sollwertes der Temperatur am zweiten Temperaturfühler (27) herangezogen wird. - Anordnung nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass die Regelungseinrichtung Laufzeitglieder aufweist, die schwankende ermittelte Temperaturwerte an den Temperaturfühlern überbrückt. - Anordnung nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass die Regelungseinrichtung eine Schaltung aufweist, die abhängig von der Geschwindigkeit der Terriperaturwertabnahme bzw. vom Temperaturgradienten am zweiten Temperaturfühler (27) die Fördergeschwindigkeit der Fördereinrichtung (14) für das Fluid regelt. - Anordnung nach Anspruch 6,
dadurch gekennzeichnet, dass die Regelung der Fördergeschwindigkeit der Fördereinrichtung (14) durch eine Pumpendrehzahländerung bei einer drehzahlgeregelten Pumpe erfolgt. - Anordnung nach einem der vorstehenden Ansprüche 4 bis 7,
dadurch gekennzeichnet, dass der erste und/oder der zweite Temperaturfühler (17, 27), vorzugsweise beide, vorzugsweise mit dem Wärmetauscher (5) innerhalb der Isolierung des Pufferspeichers (11) angeordnet sind. - Verfahren zur Bereitstellung von warmem Brauchwasser,wobei ein Fluid in einem Primärkreis läuft, eine Einrichtung (11) warmes oder heißes Fluid bereitstellt und eine Fördereinrichtung (14) das Fluid fördert,wobei das zu erwärmende Brauchwasser in einem Sekundärkreis läuft,in einem Wärmetauscher (5) die Wärme vom Fluid des Primärkreises (10) auf das Brauchwasser im Sekundärkreis (20) übertragen wird,die Fördereinrichtung (14) geregelt wird, undje ein Temperaturfühler (17, 27) im Primärkreis und im Sekundärkreis vorgesehen ist,
dass im Sekundärkreislauf (20) im Wärmetauscher (5) oder in der bezüglich des Wärmetauschers (5) ausgangsseitigen Leitung (23) die Temperatur gemessen wird,
dass bei unter einen Sollwert sinkender Temperatur und/oder über einen positiven Sollwert steigenden Temperaturgradienten und/oder unter einen negativen Sollwert fallenden Temperaturgradienten im Wärmetauscher (5) oder in der vom Wärmetauscher wegführenden Leitung (23) im Sekundärkreislauf (20) die Fördereinrichtung (14) das Fluid im Primärkreislauf (10) zu fördern beginnt, und
dass bei über einen Sollwert steigender Temperatur und/oder über einen Sollwert steigenden Temperaturgradienten im Wärmetauscher oder in der Leitung vom Wärmetauscher (5) weg im Primärkreislauf (10) die Förderung des Fluides im Primärkreislauf beendet wird. - Verfahren nach Anspruch 9,
dadurch gekennzeichnet, dass die Temperatur des warmen oder heißen Fluides im Primärkreislauf (10) bei der Ermittlung eines oder mehrerer der Sollwerte herangezogen wird. - Verfahren nach Anspruch 9 oder 10,
dadurch gekennzelchnet,
dass der Betrag des Temperaturgradienten zur Regelung der Fördergeschwindigkeit der Fördereinrichtung herangezogen wird. - Verfahren nach einem der Ansprüche 9 bis 11,
dadurch gekennzeichnet, dass der Temperaturgradientenbetrag unabhängig von dem Vorzeichen des Temperaturgradienten selbst bei der Regelung herangezogen wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19619566 | 1996-05-15 | ||
DE19619566A DE19619566C1 (de) | 1996-05-15 | 1996-05-15 | Anordnung und Verfahren zur Bereitstellung von warmem Brauchwasser |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0807790A2 EP0807790A2 (de) | 1997-11-19 |
EP0807790A3 EP0807790A3 (de) | 1998-11-18 |
EP0807790B1 true EP0807790B1 (de) | 2003-08-06 |
Family
ID=7794376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97107971A Expired - Lifetime EP0807790B1 (de) | 1996-05-15 | 1997-05-15 | Anordnung und Verfahren zur Bereitstellung von warmem Brauchwasser |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0807790B1 (de) |
AT (1) | ATE246784T1 (de) |
DE (1) | DE19619566C1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9820673D0 (en) * | 1998-09-24 | 1998-11-18 | Gledhill Water Storage | Improvements relating to heating apparatus |
DE29822245U1 (de) * | 1998-12-15 | 1999-07-15 | LIMAX Öl-Gas-Fernwärmetechnik GmbH, 01979 Lauchhammer | Warmwasserbereiter für Heizungswasserpuffersysteme |
DE10032714A1 (de) | 2000-07-07 | 2002-01-24 | Solvis Solarsysteme Gmbh | Anordnung und Verfahren zur Bereitstellung von warmem Brauchwasser |
GB0027618D0 (en) * | 2000-11-11 | 2000-12-27 | Gledhill Water Storage | Improvements relating to heating apparatus |
DE102004018034B4 (de) * | 2004-04-14 | 2014-07-24 | Stiebel Eltron Gmbh & Co. Kg | Verfahren zur Einschaltung einer Wärmepumpe in Verbindung mit einem Brauchwasserspeicher für Wärmepumpen |
AT504286B1 (de) * | 2006-09-18 | 2008-09-15 | Vaillant Austria Gmbh | Verfahren zur ladung eines warmwasserspeichers |
DE102007028656B4 (de) * | 2007-06-21 | 2013-08-14 | Robert Bosch Gmbh | Warmwasserbereiter |
DE102008029654A1 (de) | 2008-06-24 | 2009-12-31 | Solvis Gmbh & Co. Kg | Anordnung und Verfahren zur Bereitstellung von warmem Trinkwasser mit einem Wärmeübertrager |
EP2503252B1 (de) * | 2011-03-18 | 2020-04-29 | Markus Keitsch | System zur Bereitstellung von erwärmtem Brauchwasser in einem Leitungssystem |
DE102015001450A1 (de) * | 2014-07-02 | 2016-01-07 | Markus Keitsch | System zum energiesparenden Betrieb nicht permanent genutzter oder nicht permanent ausgelasteter Wärmetauscher in einem Leitungssystem, insbesondere zur Trinkwassererwärmung |
DE102015113140A1 (de) | 2014-08-15 | 2016-02-18 | Solvis Gmbh & Co. Kg | Heizungseinrichtung mit Warmwasserspeicher und darin angeordnetem Wasserzufuhrrohr |
DE102016102718B4 (de) | 2016-02-16 | 2019-11-14 | Hoval Aktiengesellschaft | Trinkwassererwärmungssystem |
CN110579023B (zh) * | 2018-06-11 | 2024-01-16 | 芜湖美的厨卫电器制造有限公司 | 壁挂炉水路循环的控制方法、装置及*** |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH285708A (de) * | 1950-04-20 | 1952-09-30 | Gustavsbergs Fabriker Ab | Anlage zum Wärmen von Gebrauchswasser. |
NL8503345A (nl) * | 1985-12-04 | 1987-07-01 | Nefit Nv | Inrichting voor het sturen van een warmwatervoorziening. |
DE3905874A1 (de) | 1989-02-23 | 1990-08-30 | Solvis Energiesysteme Gmbh | Warmwasserspeicher mit einem von brauchwasser durchstroemten heizkreis mit aussen liegendem heizelement und mit einer ladewechselvorrichtung |
DE4035115C2 (de) * | 1990-03-12 | 1993-11-04 | Sandler Energietechnik | Anordnung zum aufheizen und zum bereitstellen von warmem oder heissem brauchwasser von trinkwasserqualitaet |
EP0621450A3 (de) * | 1993-04-23 | 1995-03-22 | Georg Lachenmeier | Verfahren und Vorrichtung zur Erwärmung von Brauchwasser. |
GB2293438A (en) * | 1994-09-20 | 1996-03-27 | Gledhill Water Storage | The control of water heating apparatus to prevent scalding |
DE19512025C2 (de) * | 1995-03-31 | 1999-01-28 | Stiebel Eltron Gmbh & Co Kg | Gasheizgerät |
DE29519473U1 (de) * | 1995-12-08 | 1996-02-22 | Buderus Heiztechnik Gmbh, 35576 Wetzlar | Brauchwassererwärmer |
-
1996
- 1996-05-15 DE DE19619566A patent/DE19619566C1/de not_active Expired - Fee Related
-
1997
- 1997-05-15 EP EP97107971A patent/EP0807790B1/de not_active Expired - Lifetime
- 1997-05-15 AT AT97107971T patent/ATE246784T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0807790A3 (de) | 1998-11-18 |
DE19619566C1 (de) | 1997-11-27 |
EP0807790A2 (de) | 1997-11-19 |
ATE246784T1 (de) | 2003-08-15 |
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