EP1063481A2 - Gasbeheizter Durchlaufwassererhitzer - Google Patents
Gasbeheizter Durchlaufwassererhitzer Download PDFInfo
- Publication number
- EP1063481A2 EP1063481A2 EP00111998A EP00111998A EP1063481A2 EP 1063481 A2 EP1063481 A2 EP 1063481A2 EP 00111998 A EP00111998 A EP 00111998A EP 00111998 A EP00111998 A EP 00111998A EP 1063481 A2 EP1063481 A2 EP 1063481A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- gas
- limiter
- heat exchanger
- water heater
- 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 95
- 230000001419 dependent effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000203 mixture Substances 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
- F24H15/305—Control of valves
- F24H15/31—Control of valves of valves having only one inlet port and one outlet port, e.g. flow rate regulating valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—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
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/40—Control of fluid heaters characterised by the type of controllers
- F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
Definitions
- the present invention relates to a gas-fired instantaneous water heater according to the introductory part of the independent claim.
- Such water heaters have become known through the owner's marketable devices. These are constructed so that in the waterway, coming from the cold water network, first one So-called water switch, which works on the Venturi principle and one Contains water constant current controller, with a bypass via the actuator of the controller Venturi nozzle is provided, which is controlled by an adjustable valve. On the The water switch follows the actual heat exchanger of the instantaneous water heater in the water path and finally the nozzle.
- the heat exchanger is of an atmospheric Gas burner heated, which is a mechanical gas valve that can be reset by a spring which is driven directly by a rod of the water switch, the position of the rod corresponds to the water flow.
- the Gas throughput tracked the cold water throughput. So this is one Device temperature control.
- a pilot burner is assigned to the gas burner, this one Ignition electrode and a thermoelectric fuse, which has a second valve, connected in series with the gas valve dependent on the water switch is or an electronic ignition device that causes a heat request the 2nd valve is opened and the burner is ignited.
- opening the nozzle it turns with the degree of opening of the nozzle a water flow rate, which a corresponding Gas flow is tracked so that the user water is relatively constant temperature receives.
- the constant water flow regulator in the water switch keeps the water throughput constant, so that the water outlet temperature actually only with the gas pressure and the Water inlet temperature is variable. But since these two quantities are relatively constant, there are hardly any fluctuations in the water outlet temperature.
- This version has the disadvantage that with a relatively small set temperature (e.g. close to 40 °) this in the range of small water flow rates can be kept constant because the heat output emitted by the burner Functional reasons can not be reduced arbitrarily. If the so-called Exceeding the pilot gas overflow gas rate, the burner no longer burns at all Gas-air mixture outlet slots, so that there is a risk that unburned gas in reaches the combustion chamber, which can lead to explosions. This has made this disadvantage encountered that the lightning water flow of the device electronically to the setpoint of Water flow was coupled so that at low preselected Water outlet temperatures small water flow rates are not possible because of the device does not start.
- a relatively small set temperature e.g. close to 40 °
- the present invention has for its object the disadvantages of to avoid both device solutions.
- a gas-heated water heater 1 has one of an atmospheric one Gas burner 2 heated heat exchanger 3, which is in the area of a combustion chamber 4, the upward through an exhaust manifold 6 provided with an exhaust pipe 5 is covered.
- the gas burner 2 is fed through a gas line 7, in which a solenoid valve 8 is arranged, which is controlled by a continuously adjusting electromagnet 9, the can be actuated via a line 10 by an electronic controller 11.
- the heat exchanger 3 is on the one hand with a leading away from a cold water source 12 Cold water line 13 connected to a series connection of one as an impeller trained water flow sensor 14 and a water limiter 16 is inserted, on the other hand leads from the heat exchanger 3 equipped with a temperature sensor 17 Hot water dispensing line 18, the termination of one or more dispensing valves 19th is mastered.
- the temperature sensor 17 designed as a temperature-dependent resistor is via a line 20, the water flow sensor 14 via a line 21 with the controller 11 connected.
- Bypass line 24 inserted which is a series circuit from a throttle valve 25, the a handle 26 can be adjusted between the value "fully closed” and the maximum opening value and a further second limiter 27, which has a Adjustment member 28 can be preset.
- the two water flow limiters 16 and 27 are preset such that the one lying in series with the heat exchanger 3 Water limiter 16 is set to about a third of the water flow as in of the bypass line 24 further water flow limiters 27.
- the water flow limiter 27 is at a flow rate of 19 l / min and the limiter 16 to a throughput of 6.5 l / min.
- the limiter 16 For devices with Smaller capacities result in lower throughput values, for devices with larger ones Outputs correspondingly larger limiter throughputs.
- the two horizontally lying curve pieces 32 connecting the two curves 30 and 31 and 33 represent the limiter characteristics
- the curve 32 the limiter 16 and the Curve 33 of the sum of limiter 16 and limiter 27 is assigned.
- Points 34 and 35 represent the limited maximum water throughputs through line 13, or at the tap 19, the points 36 and 37 represent the intersection of the curve pieces 32 and 33 with the curve 31. This results in a hatched area 38 within which the gas-heated water heater can be operated.
- such a setpoint is specified that always Water outlet temperature in the tap 18 at 60 ° C. Assuming that the throttle valve 25 is in the closed position, no flow through the bypass line 24 Water. All of the water is thus passed through the heat exchanger 3 Throughput is measured by the flow transmitter 14 when the nozzle 19 is opened. On the Throughput and the temperature setpoint set on the setpoint generator 29 result certain degree of opening for the solenoid valve 8. Thus, a variation of the Degree of opening of the nozzle 19, the curve piece 32 are driven. Between a minimum water flow of 2 l / min according to point 36 to maximum water flow at point 34 of 6.5 l / min.
- a water flow rate of less cannot be represented as 2 l / min, since here the light-off water throughput of the device is undercut. Operation of the device with lower throughputs is impossible. On It is not possible to exceed point 34 with regard to the water throughput because the Max. Amount of water is limited by the limiter 16.
- a complete opening of the throttle valve 25 is effected by actuating the handle 26 a working point on the curve piece 33 between points 37 and 35.
- Das means that when the throttle valve 25 is opened, the point 37 can not be driven under, because the device only at this water throughput starts. Water flow rates of more than 19 l / min cannot be achieved because both are here Limiters 16 and 27 cut off the water flows.
- the hatched field 38 thus results in a field in which preselected Water throughputs of the set temperature control a stable and reproducible Working the instantaneous water heater is possible.
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)
- Computer Hardware Design (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Gas Burners (AREA)
Abstract
Description
Claims (4)
- Gasbeheizter Durchlaufwassererhitzer (1) mit einer einem von einem Brenner (2) beheizten Wärmetauscher (3), der im Zuge eines von einer Kaltwasserquelle (12) zu einem Zapfventil (19) verlaufenden Wasserweges (22) angeordnet ist, welcher einen Begrenzer (16) und einen Durchsatzgeber (14) aufweist, mit dessen Signal ein in einer Gaszuleitung (7) zum Brenner (2) angeordnetes Gasventil (8) verstellt wird sowie mit einer von einem Drosselventil (25) beherrschten Bypassleitung (24) im Wasserweg (22), dadurch gekennzeichnet, daß die Bypassleitung (24) parallel zu der Reihenschaltung von Begrenzer (16) und Wärmetauscher (3) verläuft und einen weiteren Begrenzer (27) aufweist.
- Gasbeheizter Durchlaufwassererhitzer nach Anspruch 1, dadurch gekennzeichnet, daß stromab des Wärmetauschers (3) im Wasserweg (22) ein Temperaturfühler (17) vorgesehen ist, welcher auf einen Regler (11) einwirkt, der nach Maßgabe der Istwerte des Durchsatzgebers (14) das Gasventil (8) verstellt.
- Gasbeheizter Durchlaufwassererhitzer nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Regler (11) als elektronischer Regler, der Temperaturfühler (17) als temperaturabhängiger Widerstand und der Durchsatzgeber (14) als Flügelradgeber ausgebildet sind.
- Gasbeheizter Durchlaufwassererhitzer nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß der in Serie mit dem Wärmetauscher (3) im Wasserweg (22) angeordnete Begrenzer (16) auf kleinere Werte, vorzugsweise 1/3, voreingestellt ist als der in der Bypassleitung (24) angeordnete weitere Begrenzer (27).
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19930236 | 1999-06-25 | ||
DE19930236 | 1999-06-25 | ||
DE19932264 | 1999-07-07 | ||
DE19932264 | 1999-07-07 | ||
DE19942623 | 1999-08-28 | ||
DE19942623 | 1999-08-28 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1063481A2 true EP1063481A2 (de) | 2000-12-27 |
EP1063481A3 EP1063481A3 (de) | 2002-12-04 |
EP1063481B1 EP1063481B1 (de) | 2006-01-18 |
Family
ID=27219204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00111998A Expired - Lifetime EP1063481B1 (de) | 1999-06-25 | 2000-06-20 | Gasbeheizter Durchlaufwassererhitzer |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1063481B1 (de) |
AT (1) | ATE316230T1 (de) |
DE (2) | DE10030118A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI20110245A1 (it) * | 2011-02-18 | 2012-08-19 | Grimaldi Stefano | Scalda acqua a gas provvisto di dispositivo anti-spegnimento |
CN108826704A (zh) * | 2018-07-20 | 2018-11-16 | 樱花卫厨(中国)股份有限公司 | 旁通管进水量能够调节的燃气热水器 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012003912B3 (de) * | 2012-02-28 | 2013-02-07 | Mertik Maxitrol Gmbh & Co. Kg | Armatur für einen Durchlauf-Wassererhitzer |
CN106556151B (zh) * | 2015-09-30 | 2019-10-01 | 青岛经济技术开发区海尔热水器有限公司 | 一种燃气热水器燃气自动增压装置及方法 |
CN105698399A (zh) * | 2016-04-28 | 2016-06-22 | 中国船舶重工集团公司第七一九研究所 | 一种节水型智能热水器 |
CN107036296A (zh) * | 2017-05-06 | 2017-08-11 | 广东万家乐燃气具有限公司 | 多功能中央燃气热水器及其控制系统 |
EP4155620A1 (de) | 2021-09-23 | 2023-03-29 | Pittway Sarl | Wassererhitzer und verfahren zum betreiben eines wassererhitzers |
EP4219986A1 (de) | 2022-01-31 | 2023-08-02 | Pittway Sarl | 3-wege-fluidventil, vorrichtung zur handhabung eines fluidstroms mit einem 3-wege-ventil und wassererhitzer mit einem 3-wege-ventil und verfahren zu dessen betrieb |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5997449A (ja) * | 1982-11-25 | 1984-06-05 | Matsushita Electric Ind Co Ltd | 加熱制御装置 |
US4501261A (en) * | 1982-06-28 | 1985-02-26 | Toto Limited | Instantaneous gas water heater |
DE3721050A1 (de) * | 1986-06-23 | 1988-02-18 | Vaillant Joh Gmbh & Co | Durchlauferhitzer |
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 |
EP0898119A2 (de) * | 1997-08-16 | 1999-02-24 | Robert Bosch Gmbh | Vorrichtung und Verfahren zur Brauchwassererwärmung |
EP0898126A1 (de) * | 1997-08-16 | 1999-02-24 | Robert Bosch Gmbh | Vorrichtung zur Brauchwassererwärmung |
EP0990861A2 (de) * | 1998-09-30 | 2000-04-05 | Honeywell B.V. | Warmwasser-Heizgerät |
-
2000
- 2000-06-20 DE DE10030118A patent/DE10030118A1/de not_active Withdrawn
- 2000-06-20 AT AT00111998T patent/ATE316230T1/de not_active IP Right Cessation
- 2000-06-20 DE DE50012064T patent/DE50012064D1/de not_active Expired - Fee Related
- 2000-06-20 EP EP00111998A patent/EP1063481B1/de not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4501261A (en) * | 1982-06-28 | 1985-02-26 | Toto Limited | Instantaneous gas water heater |
JPS5997449A (ja) * | 1982-11-25 | 1984-06-05 | Matsushita Electric Ind Co Ltd | 加熱制御装置 |
DE3721050A1 (de) * | 1986-06-23 | 1988-02-18 | Vaillant Joh Gmbh & Co | Durchlauferhitzer |
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 |
EP0898119A2 (de) * | 1997-08-16 | 1999-02-24 | Robert Bosch Gmbh | Vorrichtung und Verfahren zur Brauchwassererwärmung |
EP0898126A1 (de) * | 1997-08-16 | 1999-02-24 | Robert Bosch Gmbh | Vorrichtung zur Brauchwassererwärmung |
EP0990861A2 (de) * | 1998-09-30 | 2000-04-05 | Honeywell B.V. | Warmwasser-Heizgerät |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 008, no. 210 (M-328), 26. September 1984 (1984-09-26) & JP 59 097449 A (MATSUSHITA DENKI SANGYO KK), 5. Juni 1984 (1984-06-05) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI20110245A1 (it) * | 2011-02-18 | 2012-08-19 | Grimaldi Stefano | Scalda acqua a gas provvisto di dispositivo anti-spegnimento |
CN108826704A (zh) * | 2018-07-20 | 2018-11-16 | 樱花卫厨(中国)股份有限公司 | 旁通管进水量能够调节的燃气热水器 |
Also Published As
Publication number | Publication date |
---|---|
ATE316230T1 (de) | 2006-02-15 |
EP1063481B1 (de) | 2006-01-18 |
DE50012064D1 (de) | 2006-04-06 |
DE10030118A1 (de) | 2000-12-28 |
EP1063481A3 (de) | 2002-12-04 |
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