DE2623201C2 - Device for catalyzing smoke in a pyrolytically cleanable hearth - Google Patents
Device for catalyzing smoke in a pyrolytically cleanable hearthInfo
- Publication number
- DE2623201C2 DE2623201C2 DE2623201A DE2623201A DE2623201C2 DE 2623201 C2 DE2623201 C2 DE 2623201C2 DE 2623201 A DE2623201 A DE 2623201A DE 2623201 A DE2623201 A DE 2623201A DE 2623201 C2 DE2623201 C2 DE 2623201C2
- Authority
- DE
- Germany
- Prior art keywords
- smoke
- pyrolytically
- cleanable
- hearth
- catalyst
- 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
Links
- 239000000779 smoke Substances 0.000 title claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims description 10
- 230000003197 catalytic effect Effects 0.000 claims description 5
- 238000006555 catalytic reaction Methods 0.000 claims description 4
- 229910003445 palladium oxide Inorganic materials 0.000 description 2
- JQPTYAILLJKUCY-UHFFFAOYSA-N palladium(ii) oxide Chemical compound [O-2].[Pd+2] JQPTYAILLJKUCY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C14/00—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning
- F24C14/02—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning pyrolytic type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2007—Removing cooking fumes from oven cavities
- F24C15/2014—Removing cooking fumes from oven cavities with means for oxidation of cooking fumes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Resistance Heating (AREA)
- Catalysts (AREA)
- Incineration Of Waste (AREA)
- Cleaning In General (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zur Katalyse von Rauch in einer pyrolytisch reinigbaren Herdröhre mit Hilfe eines mit einem Heizwiderstand versehenen Katalysators.The invention relates to a device for catalyzing smoke in a pyrolytically cleanable hearth with the aid of a catalyst provided with a heating resistor.
Es ist bekannt, daß die in pyrolytisch gereinigten Herden verwendeten Katalysatoren Rauch erst dann vollständig oxydieren können, wenn eine bestimmte Temperatur erreicht ist, die bei gewöhnlich verwendeten Katalysatoren bei etwa 3500C liegt.It is known that the catalysts used in pyrolytically cleaned stoves can only completely oxidize smoke when a certain temperature has been reached, which is around 350 ° C. for commonly used catalysts.
Zur Erzielung einer Rauchkatalyse bereits bei normalen Herdbetrebstemperaturen (unter 300"C) und zur Beschleunigung dieser Katalyse während des pyrolytischen Reinigungsvorgangs wird der dem Katalysator zuzuführende Rauch ir. einem z. B. aus der DE-OS 18 01 668 bekannten Herd durch einen elektrischen Hilfswiderstand aufgeheizt, um die Mindestbetriebstemperatur möglichst rasch zu erreichen, die bei einem Katalysator auf Palladiumoxydbasis etwa 350° C beträgt.To achieve smoke catalysis even at normal stove operating temperatures (below 300 "C) and the catalyst is used to accelerate this catalysis during the pyrolytic cleaning process smoke to be supplied ir. B. from DE-OS 18 01 668 known stove by an electric Auxiliary resistor heated up in order to reach the minimum operating temperature as quickly as possible, which is at a palladium oxide based catalyst is about 350 ° C.
Dieser Hilfswiderstand ist unter dem Katalysator am Rand der Rauchbahn angeordnet. Er wird durch Leitbleche gegen den unmittelbaren Kontakt mit den stark rußhaltigen Rauchgasen geschützt, was zwar seiner Lebensdauer förderlich ist, aber die Heizwirkung mindert. Aufgabe der Erfindung ist es daher, eine Vorrichtung der eingangs genannten Art anzugeben, bei der der Rauch wirksam erhitzt wird, ohne in unmittelbaren Kontakt mit dem Heizwiderstand zu gelangen.This auxiliary resistor is located under the catalytic converter on the edge of the smoke path. He is going through Baffles are protected against direct contact with the soot-containing smoke gases, which is true is conducive to its service life, but reduces the heating effect. The object of the invention is therefore to provide a Specify device of the type mentioned, in which the smoke is effectively heated without in to come into direct contact with the heating resistor.
Dieses Ziel wird durch die im Hauptanspruch angegebene Maßnahme erreicht. Bezüglich von Merkmalen bevorzugter Ausführungsformen der Erfindung wird auf den Unteranspruch verwiesen.This goal is achieved by the measure specified in the main claim. Regarding features Preferred embodiments of the invention, reference is made to the subclaim.
An Hand zweier Figuren wird eine bevorzugte Ausführungsform der Erfindung näher erläutert.A preferred embodiment of the invention is explained in more detail using two figures.
Fig. 1 zeigt eine teilgeschnittene Seitenansicht einer Vorrichtung gemäß der Erfindung,Fig. 1 shows a partially sectioned side view of a Device according to the invention,
Tig.2 zeigt eine Aufsicht auf die Vorrichtung aus Fig. 1.Tig.2 shows a plan view of the device Fig. 1.
Der Katalysator 1 besteht aus einem Zylinder auf Palladiumoxydbasis, der mit einer Anzahl Löchern 8 versehen ist, durch die der zu oxydierende Rauch strömt. Dieser Katalysator sitzt in einem Halter, der aus zwei ebenfalls isolierenden und hiizebeständigen rohrförmigen Teilen 3 und 4 besteht.The catalyst 1 consists of a cylinder based on palladium oxide, which has a number of holes 8 through which the smoke to be oxidized flows. This catalytic converter sits in a holder that consists of two also insulating and heat-resistant tubular Parts 3 and 4 consist.
Die beiden isolierenden Teile 3 und 4 liegen übereinander und lassen zwischen sich einen torusförmigen Kanal frei, in den ein aus einem blanken Draht bestehender Heizwiderstand 2 eingesetzt ist. Die isolierenden Teile 3 und4 werden in einer Umhüllung 5 gehalten.The two insulating parts 3 and 4 lie one above the other and leave a toroidal shape between them Channel free, in which a heating resistor 2 consisting of a bare wire is inserted. the insulating parts 3 and 4 are placed in an enclosure 5 held.
Fig.2 zeigt die Vorrichtung von oben und läßt die Ausgänge 6 und 7 des Stromzuführungsdrahtes 9 für den Heizwiderstand 2 erkennen.Fig.2 shows the device from above and leaves the Detect outputs 6 and 7 of the power supply wire 9 for the heating resistor 2.
Der Heizwiderstand 2 des Katalysators liegt also außerhalb des Rauchströmungsweges und ist somit gegen Kohlenstoffablagerung geschützt. Der Heizwiderstand 2 kann beliebig lange unter Spannung gehalten werden oder auch ausgeschaltet werden, sobald der Herd etwa 3500C erreicht.The heating resistor 2 of the catalytic converter is therefore outside the smoke flow path and is thus protected against carbon deposits. The heating resistor 2 can be kept arbitrarily long with live or be turned off when the oven reaches about 350 0 C.
Wird der Heizwiderstand 2 mit Strom versorgt, so beginnt die Katalyse an der Peripherie des Katalysators und breitet sich angesichts der starken durch die Verbrennung hervorgerufenen Erhitzung praktisch augenblicklich bis in seinen mittleren Bereich aus.If the heating resistor 2 is supplied with current, the catalysis begins at the periphery of the catalytic converter and practically spreads in view of the strong heating caused by the combustion instantly to its mid-range.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7517032A FR2312734A1 (en) | 1975-05-30 | 1975-05-30 | FUME CATALYSIS DEVICE IN A PYROLYSIS CLEANING OVEN |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2623201A1 DE2623201A1 (en) | 1976-12-16 |
| DE2623201C2 true DE2623201C2 (en) | 1981-12-10 |
Family
ID=9155909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2623201A Expired DE2623201C2 (en) | 1975-05-30 | 1976-05-24 | Device for catalyzing smoke in a pyrolytically cleanable hearth |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE841497A (en) |
| CH (1) | CH606922A5 (en) |
| DE (1) | DE2623201C2 (en) |
| ES (1) | ES448309A1 (en) |
| FR (1) | FR2312734A1 (en) |
| GB (1) | GB1518230A (en) |
| IT (1) | IT1078816B (en) |
| NL (1) | NL7605521A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2820130A1 (en) * | 1977-05-16 | 1978-11-30 | Europ Equip Menager | CIRCUIT ARRANGEMENT FOR TEMPERATURE CONTROL OF A PYROLYSIS OVEN |
| DE2946745A1 (en) * | 1978-11-29 | 1980-06-12 | Dietrich & Cie De | CATALYTIC CELL FOR TREATING EXHAUST GASES FROM HOUSEHOLD OVENS |
| DE19706186A1 (en) * | 1997-02-17 | 1998-08-20 | Miele & Cie | Pyrolytic cleaning operation control method for cooking esp. roasting oven |
| DE102005045276A1 (en) * | 2005-09-22 | 2007-04-05 | Electrolux Home Products Corporation N.V. | Oven, especially kitchen-oven or cooking-oven |
| DE102021212941A1 (en) | 2021-11-17 | 2023-05-17 | BSH Hausgeräte GmbH | Oven with specific catalyst, process |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2011583B (en) * | 1977-11-19 | 1982-03-31 | Holstein & Kappert Maschf | Valve arrangement |
| DE2811650C2 (en) * | 1978-03-17 | 1983-02-03 | E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen | Catalytic afterburner |
| NZ245975A (en) * | 1993-02-23 | 1997-05-26 | John Stuart Fleming | Heating apparatus with catalytic converter in secondary combustion chamber and typically for visible flame gas heater |
| ITVE20030021U1 (en) * | 2003-10-31 | 2005-05-01 | I R C A S P A Ind Resiste Nze Corazzate | CATALYTIC CELL FOR COOKING OVENS. - |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1801668A1 (en) * | 1967-10-13 | 1969-08-07 | United Carr Inc | Catalytic burner and method for forming a catalytic unit |
-
1975
- 1975-05-30 FR FR7517032A patent/FR2312734A1/en active Granted
-
1976
- 1976-05-05 CH CH560876A patent/CH606922A5/xx not_active IP Right Cessation
- 1976-05-06 BE BE1007360A patent/BE841497A/en unknown
- 1976-05-18 GB GB20423/76A patent/GB1518230A/en not_active Expired
- 1976-05-21 NL NL7605521A patent/NL7605521A/en active Search and Examination
- 1976-05-24 DE DE2623201A patent/DE2623201C2/en not_active Expired
- 1976-05-26 IT IT23626/76A patent/IT1078816B/en active
- 1976-05-28 ES ES448309A patent/ES448309A1/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2820130A1 (en) * | 1977-05-16 | 1978-11-30 | Europ Equip Menager | CIRCUIT ARRANGEMENT FOR TEMPERATURE CONTROL OF A PYROLYSIS OVEN |
| DE2946745A1 (en) * | 1978-11-29 | 1980-06-12 | Dietrich & Cie De | CATALYTIC CELL FOR TREATING EXHAUST GASES FROM HOUSEHOLD OVENS |
| DE19706186A1 (en) * | 1997-02-17 | 1998-08-20 | Miele & Cie | Pyrolytic cleaning operation control method for cooking esp. roasting oven |
| DE102005045276A1 (en) * | 2005-09-22 | 2007-04-05 | Electrolux Home Products Corporation N.V. | Oven, especially kitchen-oven or cooking-oven |
| DE102021212941A1 (en) | 2021-11-17 | 2023-05-17 | BSH Hausgeräte GmbH | Oven with specific catalyst, process |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1518230A (en) | 1978-07-19 |
| BE841497A (en) | 1976-11-08 |
| IT1078816B (en) | 1985-05-08 |
| NL7605521A (en) | 1976-12-02 |
| CH606922A5 (en) | 1978-11-30 |
| ES448309A1 (en) | 1977-07-16 |
| DE2623201A1 (en) | 1976-12-16 |
| FR2312734A1 (en) | 1976-12-24 |
| FR2312734B1 (en) | 1980-01-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| D2 | Grant after examination | ||
| 8339 | Ceased/non-payment of the annual fee |