EP0990861A2 - Warmwasser-Heizgerät - Google Patents
Warmwasser-Heizgerät Download PDFInfo
- Publication number
- EP0990861A2 EP0990861A2 EP99118879A EP99118879A EP0990861A2 EP 0990861 A2 EP0990861 A2 EP 0990861A2 EP 99118879 A EP99118879 A EP 99118879A EP 99118879 A EP99118879 A EP 99118879A EP 0990861 A2 EP0990861 A2 EP 0990861A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- flow
- hot water
- burner
- cold water
- heat exchanger
- 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 title claims abstract description 65
- 239000000446 fuel Substances 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 241001156002 Anthonomus pomorum Species 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000000056 organ Anatomy 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
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/219—Temperature of the water after heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/238—Flow rate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—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
Definitions
- the present invention relates to a hot water heater.
- DE 43 08 770 C2 shows a hot water heater with one by one Burner D heated heat exchanger with a cold water inlet and a Hot water outlet is connected, and with a the fuel supply to the burner B controlling controller C, which is connected to a temperature sensor in the hot water outlet is connected, a between the cold water inlet and hot water outlet Bypass channel is arranged.
- a hot water heater is known with a heated heat exchanger with a cold water inlet and a Hot water outlet is connected and with a heat supply to the Heat exchanger-controlling controller that connects the cold water inlet to a flow sensor and is connected to a temperature sensor in the hot water outlet, wherein between Cold water inlet and hot water outlet a bypass channel is arranged.
- Hot water heater of this type In a known other hot water heater of this type is located in Cold water inlet a flow sensor, which is connected to a control unit for a burner connected. The cold water then runs to a heat exchanger below which the burner is arranged. Behind the heat exchanger and in the way to that Hot water outlet is a temperature sensor, which is also connected to the control unit connected. The desired temperature at the outlet is set by a setpoint device set on the control unit.
- the known hot water heater described above has two main ones Disadvantage.
- the temperature at the outlet drop as soon as the maximum heating power of the burner is reached.
- the temperature at the outlet depends on the height of the water flow.
- the maximum water flow must be limited when the temperature set point is set to a maximum. Furthermore, must to avoid the second disadvantage, the switch-on point of the burner at one higher water flow when the temperature is at a minimum temperature set point is set.
- cold water is supplied to a cold water inlet 12.
- Flow sensor 1 detects the flow of cold water when not shown on one Withdrawal point at a hot water outlet 13 removed warm water becomes.
- the flow sensor 1 is connected to a control unit 3, to which a Adjustment button 18 e.g. a setpoint can be set in the form of a potentiometer.
- the Control unit 3 is connected to a modulating gas inflow controller 2, the one Fuel gas feeds a burner 4.
- the cold water inflow 12 is via a line 5 to a heat exchanger 7 connected in which the cold water is heated and via a line 10 to the Hot water outlet 13 is supplied.
- a temperature sensor 11 detects the temperature of the warm water behind the heat exchanger 7 and is as an actual value transmitter to the Control unit 3 connected.
- the burner 4 sits in a housing 6 below the Heat exchanger 7 and an overlying heating shaft is by a blower 8 or vented by natural draft.
- the fresh air supply takes place via a tube 9, which is below of the burner 4 opens into the housing 6.
- FIG. 1 there is a bypass channel 17 in FIG. 2 provided between the cold water inlet 12 and the hot water outlet 13, wherein the branch of the bypass channel 17 is upstream of the flow sensor 1.
- flow restrictors 14 and 15 are arranged in the bypass duct 17 and in the cold water inlet 12 after the junction of Bypass channels 17 arranged flow restrictors 14 and 15, respectively.
- an organ 16 regulating the flow rate e.g. in the form of a rooster intended.
- the flow restrictors 14 and 15 are dimensioned so that the total fluid resistance the heating circuit and the bypass channel when fully open Flow control member 16 is the same size. However, this dimensioning is only exemplary and can also be chosen differently.
- the structure of the hot water heater according to the invention described above results in the following mode of operation:
- the water temperature is always regulated to the maximum setpoint by the temperature sensor 11 and the control unit 3.
- the setting button 18 on the control unit 2 can be omitted.
- the flow control member 16 When the flow control member 16 is closed, the entire water flow through the heating circuit 5, 7, 10, and the switch-on point of the burner 4 is determined by the flow sensor 1, as in the known case, which means that now the switch-on point in the same way as is specified in the known device.
- the maximum water flow is limited by the flow limiter 15 so that the water temperature will not drop even when the hot water requirement is maximum. This avoids the first disadvantage mentioned at the outset.
- the temperature setpoint moves between its minimum and maximum value, which is the same for the switch-on point of the Brenners applies.
- the temperature of the Water controlled by the temperature sensor 11 and the result of the mixture. This leads to a stable temperature at the outlet 13.
- the flow control element 16 specifies the temperature setpoint generator for the device.
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)
- Fluid Mechanics (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
Description
- Figur 1
- ein Warmwasser-Heizgerät bekannter Bauart; und
- Figur 2
- ein Warmwasser-Heizgerät gemäß der Erfindung.
Die Wassertemperatur wird immer auf dem maximalen Sollwert durch den Temperatursensor 11 und das Steuergerät 3 geregelt. Hierbei kann der Einstellknopf 18 an dem Steuergerät 2 entfallen. Wenn das Durchflußregelorgan 16 geschlossen ist, so erfolgt der gesamte Wasserfluß durch den Heizkreis 5, 7, 10, und der Einschaltpunkt des Brenners 4 wird durch den Durchflußsensor 1, wie im bekannten Fall vorgegeben, was bedeutet, daß nunmehr der Einschaltpunkt in gleicher Weise wie bei dem bekannten Gerät vorgegeben ist. Der maximale Wasser-Durchfluß wird durch den Durchflußbegrenzer 15 begrenzt, so daß die Wassertemperatur auch dann nicht abfallen wird, wenn die Anforderung nach heißem Wasser maximal ist. Hierdurch wird der eingangs erwähnte erste Nachteil vermieden.
Andererseits bedeutet dies, daß der maximale Wasserfluß nun verdoppelt ist. Dies führt zu folgenden Konsequenzen:
Der Wasserfluß zur Einschaltung des Gerätes über den Durchflußsensor wird verdoppelt, so daß der eingangs erwähnte zweite Nachteil vermieden wird.
Der maximale Wasserfluß wird nunmehr durch das Mischen von kaltem und heißem Wasser verdoppelt, wodurch die Temperatur und der Sollwert herabgesetzt werden. Hierdurch wird das Ziel eines großen Wasser-Durchflusses bei geringem Sollwert verwirklicht.
Claims (4)
- Warmwasser-Heizgerät mit einem durch einen Brenner (4) geheizten Wärmetauscher (7), der mit einem Kaltwasser-Einlaß (12) und einem Warmwasserauslaß (13) verbunden ist und mit einem die Brennstoffzufuhr zu dem Brenner steuernden Regler, der an einen Durchflußsensor (1) im Kaltwasser-Einlaß (12) und an einen Temperatursensor (11) im Warmwasser-Auslaß (13) angeschlossen ist, wobei in Fließrichtung vor dem Durchflußsensor (1) zwischen Kaltwasser-Einlaß (12) und Warmwasser-Auslaß (13) ein Bypaßkanal (17) angeordnet ist.
- Heizgerätnach Anspruch 1, dadurch gekennzeichnet, daß in einem den Wärmetauscher (7) aufweisenden Heizkreis (5, 10) und in dem Bypaßkanal (17) jeweils Durchflußbegrenzer (15, 14) angeordnet sind.
- Heizgerät nach Anspruch 2, gekennzeichnet durch ein Durchfluß-Regelorgan (16) im Bypaßkanal (17) für die Einstellung der Durchflußmenge.
- Heizgerät nach Anspruch 3, dadurch gekennzeichnet, daß die Durchflußbegrenzer (15, 14) so dimensioniert sind, daß der Gesamt-Fluidwiderstand des Heizkreises (5, 10) und des Bypaßkanales (17) bei voll geöffnetem Durchfluß-Regelorgan (16) beide gleich groß sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19844856 | 1998-09-30 | ||
DE19844856A DE19844856C1 (de) | 1998-09-30 | 1998-09-30 | Warmwasser-Heizgerät |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0990861A2 true EP0990861A2 (de) | 2000-04-05 |
EP0990861A3 EP0990861A3 (de) | 2002-08-07 |
EP0990861B1 EP0990861B1 (de) | 2005-11-16 |
Family
ID=7882802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99118879A Expired - Lifetime EP0990861B1 (de) | 1998-09-30 | 1999-09-24 | Warmwasser-Heizgerät |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0990861B1 (de) |
DE (2) | DE19844856C1 (de) |
ES (1) | ES2252901T3 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1063475A2 (de) * | 1999-06-25 | 2000-12-27 | Joh. Vaillant GmbH u. Co. | Gasbeheizter Durchlaufwassererhitzer |
EP1063481A2 (de) * | 1999-06-25 | 2000-12-27 | Joh. Vaillant GmbH u. Co. | Gasbeheizter Durchlaufwassererhitzer |
WO2001079733A1 (en) * | 2000-04-14 | 2001-10-25 | Zip Heaters (Australia) Pty Limited | Improvements in boiling and/or chilling water units |
EP1310736A2 (de) * | 2001-11-07 | 2003-05-14 | Siemens Building Technologies AG | Regelverfahren und Regler zur Regelung eines Brenners |
WO2009136211A2 (en) * | 2008-05-09 | 2009-11-12 | Paul Frederick Dudley | Water heating system |
ITMI20110245A1 (it) * | 2011-02-18 | 2012-08-19 | Grimaldi Stefano | Scalda acqua a gas provvisto di dispositivo anti-spegnimento |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI557383B (zh) * | 2014-09-02 | 2016-11-11 | Grand Mate Co Ltd | Water heater and its secondary heat exchanger |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3805441A1 (de) | 1987-03-02 | 1988-09-15 | Stiebel Eltron Gmbh & Co Kg | Durchlauferhitzer |
DE4308770A1 (de) | 1992-03-25 | 1993-09-30 | Rinnai Kk | Steuerapparat einer Heißwasserversorgung |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4501261A (en) * | 1982-06-28 | 1985-02-26 | Toto Limited | Instantaneous gas water heater |
JPH03186150A (ja) * | 1990-11-08 | 1991-08-14 | Matsushita Electric Ind Co Ltd | 給湯制御装置 |
-
1998
- 1998-09-30 DE DE19844856A patent/DE19844856C1/de not_active Expired - Fee Related
-
1999
- 1999-09-24 EP EP99118879A patent/EP0990861B1/de not_active Expired - Lifetime
- 1999-09-24 DE DE59912798T patent/DE59912798D1/de not_active Expired - Lifetime
- 1999-09-24 ES ES99118879T patent/ES2252901T3/es not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3805441A1 (de) | 1987-03-02 | 1988-09-15 | Stiebel Eltron Gmbh & Co Kg | Durchlauferhitzer |
DE4308770A1 (de) | 1992-03-25 | 1993-09-30 | Rinnai Kk | Steuerapparat einer Heißwasserversorgung |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1063475A2 (de) * | 1999-06-25 | 2000-12-27 | Joh. Vaillant GmbH u. Co. | Gasbeheizter Durchlaufwassererhitzer |
EP1063481A2 (de) * | 1999-06-25 | 2000-12-27 | Joh. Vaillant GmbH u. Co. | Gasbeheizter Durchlaufwassererhitzer |
EP1063481A3 (de) * | 1999-06-25 | 2002-12-04 | Vaillant GmbH | Gasbeheizter Durchlaufwassererhitzer |
EP1063475A3 (de) * | 1999-06-25 | 2003-03-26 | Vaillant GmbH | Gasbeheizter Durchlaufwassererhitzer |
WO2001079733A1 (en) * | 2000-04-14 | 2001-10-25 | Zip Heaters (Australia) Pty Limited | Improvements in boiling and/or chilling water units |
EP1310736A2 (de) * | 2001-11-07 | 2003-05-14 | Siemens Building Technologies AG | Regelverfahren und Regler zur Regelung eines Brenners |
EP1310736A3 (de) * | 2001-11-07 | 2004-05-19 | Siemens Building Technologies AG | Regelverfahren und Regler zur Regelung eines Brenners |
WO2009136211A2 (en) * | 2008-05-09 | 2009-11-12 | Paul Frederick Dudley | Water heating system |
US20110174463A1 (en) * | 2008-05-09 | 2011-07-21 | Paul Frederick Dudley | Water Heating System |
WO2009136211A3 (en) * | 2008-05-09 | 2012-01-19 | Paul Frederick Dudley | Water heating system |
ITMI20110245A1 (it) * | 2011-02-18 | 2012-08-19 | Grimaldi Stefano | Scalda acqua a gas provvisto di dispositivo anti-spegnimento |
Also Published As
Publication number | Publication date |
---|---|
ES2252901T3 (es) | 2006-05-16 |
DE19844856C1 (de) | 2000-05-18 |
DE59912798D1 (de) | 2005-12-22 |
EP0990861A3 (de) | 2002-08-07 |
EP0990861B1 (de) | 2005-11-16 |
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