EP0604388B1 - Vorrichtung zur Regelung der Verbrennungsluftzufuhr bei einem Ofen - Google Patents
Vorrichtung zur Regelung der Verbrennungsluftzufuhr bei einem Ofen Download PDFInfo
- Publication number
- EP0604388B1 EP0604388B1 EP93890245A EP93890245A EP0604388B1 EP 0604388 B1 EP0604388 B1 EP 0604388B1 EP 93890245 A EP93890245 A EP 93890245A EP 93890245 A EP93890245 A EP 93890245A EP 0604388 B1 EP0604388 B1 EP 0604388B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- combustion
- combustion chamber
- sealing element
- closure member
- adjusting means
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
- F23N5/006—Systems for controlling combustion using detectors sensitive to combustion gas properties the detector being sensitive to oxygen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B1/00—Stoves or ranges
- F24B1/02—Closed stoves
- F24B1/028—Closed stoves with means for regulating combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/08—Measuring temperature
- F23N2225/10—Measuring temperature stack temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/08—Measuring temperature
- F23N2225/16—Measuring temperature burner temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/02—Air or combustion gas valves or dampers
- F23N2235/06—Air or combustion gas valves or dampers at the air intake
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/02—Air or combustion gas valves or dampers
- F23N2235/10—Air or combustion gas valves or dampers power assisted, e.g. using electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2239/00—Fuels
- F23N2239/02—Solid fuels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N3/00—Regulating air supply or draught
- F23N3/08—Regulating air supply or draught by power-assisted systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
Definitions
- the invention relates to a device for regulating the supply of combustion air to the combustion chamber of a tiled stove, the combustion gases of which via a connector be derived into a chimney by means of an actuatable by an adjusting device Closure member, which is formed, for example, by a thermal actuator Adjustment device is controlled by a control device which with a Temperature sensor and one formed by a combustion chamber door contact Safety device which, when the combustion chamber door is opened, opens the Closure organ causes, is operatively connected.
- a control device which with a Temperature sensor and one formed by a combustion chamber door contact Safety device which, when the combustion chamber door is opened, opens the Closure organ causes, is operatively connected.
- a control device which with a Temperature sensor and one formed by a combustion chamber door contact Safety device which, when the combustion chamber door is opened, opens the Closure organ causes, is operatively connected.
- a control device which with a Temperature sensor and one formed by a combustion chamber door contact Safety device which, when the combustion chamber door is opened
- the control device by the Temperature sensor influenced so that the closure member, which is the supply of Combustion air regulates, remains fully open until the Fuel has occurred and thereby the temperature of the combustion gases below one predetermined value decreases. Then the closure member is completely closed and the supply of combustion air is completely prevented, so that no air flow in the Combustion chamber arises, through which the stored heat in an undesirable manner via the Chimney is discharged.
- the temperature sensor is in this known device in Connection piece arranged. The fact that the control device not only by Temperature sensor, but also by the actuatable from the combustion chamber door Safety device is affected, is prevented that when refilling Fuel in the combustion chamber the closure member remains closed and thereby for the refilled fuel there is no combustion air supply.
- This known device thus ensures maximum security against Flue gas explosions and prevents unwanted dissipation of the stored heat, optimal control of the combustion air supply during the burn up to However, termination of the same is not possible with this known device since this known device the closure member always during the burn is fully open.
- the CO content in the combustion gas that is discharged through the chimney is on the one hand from the temperature in the furnace, on the other hand from that Combustion chamber supplied amount of combustion air and thus from the position of the Locking device dependent.
- increased CO levels cause environmental pollution. Besides, will cooled by an excess of air in the combustion chamber and thereby the efficiency of the oven deteriorated.
- a furnace has become known in which the Combustion is divided into two zones, with air supply to each of the two zones can be regulated independently of one another.
- the firing performance is Regulation of the air supply depending on the temperature in the exhaust pipe on one optimal value kept in the second zone by measuring the oxygen content the exhaust gases with an oxygen probe the residual oxygen at an optimal value being held.
- Such a two-stage regulation is in tiled stoves, in which only a single combustion chamber with a single air supply is not provided applicable.
- the present invention has for its object a device for Control of the combustion air supply to the combustion chamber of a tiled stove to create with which enables the amount of combustion air supplied even during the Burning to adapt to the respective requirements and thus also the CO content in the Setting the combustion gas to an optimal value and thus the load on the Reduce environment.
- the invention proposes that the Control device is also operatively connected to a lambda probe that the Temperature sensor measures the temperature in the combustion chamber, and that the Lambda sensor is arranged in the connector.
- the output signal of the lambda probe corresponds to that according to a characteristic curve assigned to this lambda probe Residual oxygen content in the combustion gas.
- This output signal is now According to the invention supplied to the control device, which also by means of Temperature sensor measured temperature is entered in the combustion chamber.
- combustion chamber temperature is assigned a certain amount of combustion air, which ensures combustion with optimal efficiency.
- the Control of the combustion air supply according to the invention thus takes place both in Depending on the temperature in the combustion chamber as well as depending on Residual oxygen in the combustion gas, i.e. depending on the values for cheap combustion with optimal efficiency and minimal environmental impact are decisive. It is thus ensured that, on the one hand, that for the respective Combustion chamber temperature required amount of combustion air is supplied on the other hand, the combustion gas contains only the least possible residual oxygen and so that CO emissions are reduced to a minimum.
- Regulation will therefore not only the closure member between an open position and Closed position adjusted, but rather there are intermediate positions of the Closure member possible and it becomes the required one by the control device
- the amount of combustion air supplied is regulated during the combustion.
- the adjustment device with a for example, a position transmitter formed by a rotary potentiometer coupled with the control device is in operative connection.
- a heated lambda probe is preferably provided, which also means Start of the combustion process for the proper functioning of the lambda sensor required operating temperature is guaranteed.
- Temperature sensor flame temperatures are measured by the Combustion chamber temperature can assume different values and therefore that Falsify measurement result is, according to a further feature of the invention Temperature sensor expedient in the combustion gas path in the area of the outlet opening Combustion gases are provided from the combustion chamber.
- the control device which with the adjustment device for the closure member is coupled, causes a linear adjustment of this adjustment, so that to a To achieve optimal control, the air inlet openings of the closure member linear need to be enlarged or reduced.
- the closure member consists of one by one Axis pivotable door or the like., So is a linear change in the supply of Combustion air not guaranteed.
- the closure member with linearly by the adjusting device Openable or closable air inlet openings provided, so that with a through Changing the controlled variables also caused the linear adjustment of the adjustment device Size of the air inlet openings is changed linearly in the desired manner.
- the closure member consists of two relatively mutually displaceable plates having the air inlet openings. At Displacement of one of these plates relative to the other overlap that in the two Air inlet openings located either completely, partially or not at all, so that the desired linear change in the air supply is ensured.
- Fig. 1 shows a furnace with the principle of the device according to the invention.
- Fig. 2 represents the closure member on a larger scale together with the adjusting device.
- the furnace shown in the drawing has a combustion chamber door 1 for refilling solid fuel and one that closes the ash compartment Ash door 2 in which an opening for the supply of Combustion air is arranged by a closer in Fig.2 shown closure member 3 is lockable.
- the one inside the oven located, accessible through the combustion chamber door 1 has a Outlet opening 4 for the combustion gases on a Connecting piece 5 is connected to a chimney located in the building, through which the combustion gases generated during combustion be dissipated.
- combustion air does not have to be provided in the ash door 2 be, but can also be arranged at a different location, for example in the combustion chamber door 1 or in a separate, in the Combustion chamber opening air supply duct.
- a heated lambda probe 6 is provided which generates an output signal corresponding to the O 2 content of the combustion gases, which is connected via an electrical line 7 to an electronic control device 8 which can be attached anywhere outside the furnace.
- thermocouple is located in the area of the outlet opening 4 9, the electrical voltage proportional to the burn-up temperature generated.
- the thermocouple is connected via an electrical line 13 to the electronic control device 8 connected.
- the closure member 3 consists of two Plates, of which the upper plate 14 is visible, which is relative to the underlying plate in the direction of the double arrow 15 slidably is.
- the shift is made by, for example, a Adjustment device 16 formed by a thermostatic motor via a linkage 17.
- the adjustment device is via an electrical line 10 (see FIG. 1) connected to the control device 8.
- Such a thermal actuator 16 is provided with a reset device that the closure member 3 at Power failure opens to prevent this shutter 3 at is not open after a burning and therefore no supply of Combustion air takes place.
- Such a thermal actuator contains one Expansion material that expands when heated by electricity and closes the closure member 3, when the Power supply, i.e. in the event of a power failure, but its volume is reduced and thereby causes the closure member 3 to open.
- Both the top plate 14 and the one below it Plate have air inlet openings 18 which, depending on the position of the cover the two plates more or less relative to each other, whereby the cross section of the air inlet determines it Air inlet openings with a linear displacement of the plate 14 relative to the underlying plate by means of the adjusting device 16 is changed linearly.
- the linkage 17 is also one of a rotary potentiometer 19 formed position transmitter coupled, which, likewise via the electrical line 10 (see Fig.1), a feedback of the position of the Closure member 3 to the control device 8 causes.
- Closure member 3 is an optimal supply of combustion air, by which the residual oxygen content in the combustion gas as low as possible is maintained and no deterioration in CO emissions due to Lack of oxygen occurs.
- the one formed by the door contact 11 Safety device prevents that after opening the combustion chamber door 1 for adding fuel the closure member 3 remains closed and therefore no combustion air is supplied.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Combustion (AREA)
- Regulation And Control Of Combustion (AREA)
Description
Claims (6)
- Vorrichtung zur Regelung der Verbrennungsluftzufuhr zum Brennraum eines Kachelofens, dessen Verbrennungsgase über ein Verbindungsstück (5) in einen Kamin abgeleitet werden, mittels eines von einer Verstelleinrichtung (16) betätigbaren Verschlußorganes (3), wobei die, beispielsweise von einem Thermostellmotor gebildete, Verstelleinrichtung (16) von einer Steuereinrichtung (8) gesteuert ist, die mit einem Temperaturfühler (9) und einer von einem Brennraumtürkontakt (11) gebildeten Sicherheitseinrichtung, welche bei einem Öffnen der Brennraumtüre (1) ein Öffnen des Verschlußorganes (3) bewirkt, in Wirkverbindung steht, dadurch gekennzeichnet, daß die Steuereinrichtung (8) zusätzlich mit einer Lambdasonde (6) in Wirkverbindung steht, daß der Temperaturfühler (9) die im Brennraum vorhandene Temperatur mißt, und daß die Lambdasonde (6) im Verbindungsstück (5) angeordnet ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Verstelleinrichtung (16) mit einem beispielsweise von einem Drehpotentiometer (19) gebildeten Stellungsgeber gekuppelt ist, der mit der Steuereinrichtung (8) in Wirkverbindung steht.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß eine beheizte Lambdasonde (6) vorgesehen ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Temperaturfühler (9) im Verbrennungsgasweg im Bereich der Austrittsöffnung (4) der Verbrennungsgase aus dem Brennraum vorgesehen ist.
- Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Verschlußorgan (3) mit durch die Verstelleinrichtung (16) linear öffenbaren bzw. schließbaren Luftzutrittsöffnungen (18) versehen ist.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß das Verschlußorgan (3) aus zwei relativ zueinander verschiebbaren, die Luftzutrittsöffnungen (18) aufweisenden Platten (14) besteht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0254492A AT398483B (de) | 1992-12-22 | 1992-12-22 | Vorrichtung zur regelung der verbrennungsluftzufuhr bei einem ofen |
AT2544/92 | 1992-12-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0604388A1 EP0604388A1 (de) | 1994-06-29 |
EP0604388B1 true EP0604388B1 (de) | 1998-03-25 |
Family
ID=3536171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93890245A Expired - Lifetime EP0604388B1 (de) | 1992-12-22 | 1993-12-16 | Vorrichtung zur Regelung der Verbrennungsluftzufuhr bei einem Ofen |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0604388B1 (de) |
AT (1) | AT398483B (de) |
DE (1) | DE59308306D1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999064789A1 (en) * | 1998-05-29 | 1999-12-16 | Morsø Jernstøberi A/S | A stove for solid fuel |
CH694380A5 (de) * | 2000-01-21 | 2004-12-15 | Spiess Ag Heizsysteme & Ofente | Ofen für feste Brennstoffe. |
CA2513724A1 (en) * | 2003-02-14 | 2004-08-26 | Fpi Fireplace Products International Ltd. | Draft control system and method for heating systems |
DK2085694T3 (en) * | 2008-01-30 | 2018-09-03 | Ihs Innovation Aps | Electronically controlled woodburning stove and control method therefore |
DE102008057697A1 (de) | 2008-11-17 | 2010-05-20 | Uwe Kannengiesser | Vorrichtung und Verfahren zum Umrüsten von Holzöfen auf elektronisch geregelten Abbrand |
DE102009005178B4 (de) * | 2009-01-15 | 2012-01-19 | Spartherm Feuerungstechnik Gmbh | Vorrichtung zum Verbrennen von festen Brennstoffen |
DK177394B1 (da) | 2011-11-07 | 2013-03-18 | Hwam As | Fremgangsmåde til forbrænding af et brændsel i en brændeovn, en brændeovn med en styreenhed samt en luftregulator til en brændeovn |
EP2607788A1 (de) | 2011-12-20 | 2013-06-26 | Rudy Cyris | Heizgerät mit sehr geringer Tiefe und ausgedehntem Sichtfeld |
DE102016221446A1 (de) * | 2016-11-02 | 2018-05-03 | BSH Hausgeräte GmbH | Kalibrieren eines Sauerstoffsensors eines Haushaltsgeräts |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH180008A (de) * | 1934-10-26 | 1935-10-15 | Wagner Rudolf | Zugsverteilungs- und Regelungsvorrichtung in Feuerungsanlagen. |
AT253658B (de) * | 1964-08-28 | 1967-04-25 | Johannes Ing Astmann | Einrichtung zur Absperrung bzw. Freigabe von Abgas- oder Rauchgaskanälen |
US4150939A (en) * | 1977-08-22 | 1979-04-24 | Reliance Instrument Manufacturing Corp. | Differential controller for positioning combustion system |
AT395475B (de) * | 1987-09-23 | 1993-01-25 | Pfisterer Kurt | Vorrichtung zur regelung der verbrennungsluftzufuhr bei einem ofen |
JPH02195244A (ja) * | 1989-01-25 | 1990-08-01 | Fujikura Ltd | 燃焼制御用電子素子の長寿命化方法 |
EP0409790A1 (de) * | 1989-07-19 | 1991-01-23 | Willi Hager | Feuerungsanlage |
-
1992
- 1992-12-22 AT AT0254492A patent/AT398483B/de active
-
1993
- 1993-12-16 EP EP93890245A patent/EP0604388B1/de not_active Expired - Lifetime
- 1993-12-16 DE DE59308306T patent/DE59308306D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE59308306D1 (de) | 1998-04-30 |
AT398483B (de) | 1994-12-27 |
ATA254492A (de) | 1994-04-15 |
EP0604388A1 (de) | 1994-06-29 |
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