DE2623201A1 - DEVICE FOR CATALYSIS OF SMOKE IN A PYROLYTICALLY CLEANED COOKER - Google Patents
DEVICE FOR CATALYSIS OF SMOKE IN A PYROLYTICALLY CLEANED COOKERInfo
- Publication number
- DE2623201A1 DE2623201A1 DE19762623201 DE2623201A DE2623201A1 DE 2623201 A1 DE2623201 A1 DE 2623201A1 DE 19762623201 DE19762623201 DE 19762623201 DE 2623201 A DE2623201 A DE 2623201A DE 2623201 A1 DE2623201 A1 DE 2623201A1
- Authority
- DE
- Germany
- Prior art keywords
- smoke
- catalyst
- heating resistor
- catalysis
- cooker
- 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
- 238000006555 catalytic reaction Methods 0.000 title description 5
- 239000003054 catalyst Substances 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000000779 smoke Substances 0.000 claims description 9
- 239000011810 insulating material Substances 0.000 claims description 2
- 230000003197 catalytic effect Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 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
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000000034 method Methods 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)
- Cleaning In General (AREA)
- Incineration Of Waste (AREA)
- Catalysts (AREA)
Description
Fo 9929 DFo 9929 D
1 ^ Mal 1576 1 ^ times 1576
SOSPI GmbH 2623201SOSPI GmbH 2623201
800ü München 80
Zeppelinstr. 63800ü Munich 80
Zeppelinstrasse 63
COMPAGNIE EUROPEENNE POUR L1EQUIPEMENTCOMPAGNIE EUROPEENNE POUR L 1 EQUIPEMENT
MENÄGER "CEPEM" 3.A. 12, rue de la Baume, 75OO8 PARIS, FrankreichMENÄGER "CEPEM" 3.A. 12, rue de la Baume, 75OO8 PARIS, France
VORRICHTTJNG ZUR KATALYSE VON RAUCH IN EINER PYROLYTISCH GEREINIGTEN HERDRÖHREDEVICE FOR CATALYSIS OF SMOKE IN A PYROLYTABLE CLEANED EARTH
Die Erfindung betrifft Rauchkatalysatoren für pyrolytisch gereinigte Back- und Bratröhren in Herden.The invention relates to smoke catalysts for pyrolytically cleaned baking and roasting tubes in stoves.
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 35O°C liegt.It is known that the catalysts used in pyrolytically cleaned stoves only smoke completely can oxidize, when a certain temperature is reached, that of commonly used catalysts at about 350 ° C lies.
Zur Erzielung einer Rauchkatalyse bereits bei normalen Herdbetriebstemperaturen (unter 300°C) und zur Beschleunigung dieser Katalyse während des pyrolytischen ReinigungsvorgangsTo achieve smoke catalysis already with normal Oven operating temperatures (below 300 ° C) and to accelerate this catalysis during the pyrolytic cleaning process
609851/0739609851/0739
wird der Katalysator in einem bekannten Herd durch einen elektrischen HilfsWiderstand aufgeheizt, um seine Mindestbetriebstemperatur möglichst rasch zu erreichen, die bei einem Katalysator auf Palladiumoxydbasis etwa 350 C beträgt.the catalytic converter in a known stove is heated to its minimum operating temperature by an electrical auxiliary resistor to be reached as quickly as possible, which is about 350 ° C. in the case of a catalyst based on palladium oxide.
Dieser HilfsWiderstand ist gewöhnlich unter dem Katalysator in der Rauchbahn angeordnet. Besteht er aus einem blanken Draht, so stellt man bei einem stark fettverschmutzten Herd fest, daß der Heizwiderstand des Katalysators momentan mit einer starken Kohlenstoffschicht bedeckt wird. Hierdurch ergibt sich eine Verringerung des elektrischen Gesamtwiderstands des Heizdrahts und durch eine daraus entstehende Speisestrom- und Temperaturerhöhung des Drahtes eine Verringerung seiner Lebensdauer.This auxiliary resistor is usually placed under the catalytic converter in the smoke path. Does it consist of one bare wire, it is found in a stove that is heavily soiled with grease that the heating resistance of the catalytic converter is momentary is covered with a thick layer of carbon. Through this there is a reduction in the total electrical resistance of the heating wire and the resulting feed current and an increase in the temperature of the wire reduces its service life.
Ziel der Erfindung ist es, diesen Nachteil zu beheben, indem der Heizwiderstand des Katalysators gegen eine derartige Beschichtung geschützt wird.The aim of the invention is to overcome this disadvantage by the heating resistance of the catalyst against a such coating is protected.
Dieses Ziel wird durch die im Hauptanspruch angegebene Maßnahme erreicht.This goal is achieved by the measure specified in the main claim.
Vorzugsweise ist der Heizwiderstand in einem hitzebeständigen Isolierstoff eingeschlossen, der den Halter desPreferably, the heating resistor is enclosed in a heat-resistant insulating material that the holder of the
Katalysators bildet.Catalyst forms.
An Hand zweier Figuren wird eine bevorzugte Ausführungsform der Erfindung näher erläutert.A preferred embodiment is shown on the basis of two figures the invention explained in more detail.
Fig. 1 zeigt eine teilgeschnittene Seitenansicht einer erfindungsgemäßen Vorrichtung.Fig. 1 shows a partially sectioned side view of a device according to the invention.
Fig. 2 zeigt eine Aufsicht auf die Vorrichtung aus Fig. 1,FIG. 2 shows a plan view of the device from FIG. 1,
Der erfindungsgemäße Katalysator besteht aus einem Zylinder 1 auf Palladiumoxydbasis, der mit einer Anzahl LöchernThe catalyst according to the invention consists of a cylinder 1 based on palladium oxide, which has a number of holes
609851/0739609851/0739
8 versehen ist, durch die der zu oxydierende Rauch strömt. Dieser Katalysator sitzt in einem Halter, der aus zwei ebenfalls isolierenden und hitzebeständigen rohrförmigen Teilen 3 und 4 besteht.8 is provided through which the smoke to be oxidized flows. This catalytic converter sits in a holder, which also consists of two insulating and heat-resistant tubular parts 3 and 4 consists.
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 und 4 werden in einer Umhüllung 5 gehalten.The two insulating parts 3 and 4 lie one above the other and leave a toroidal channel free between them, in which a heating resistor 2 consisting of a bare wire is inserted. The insulating parts 3 and 4 are in a casing 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 outputs 6 and 7 of the power supply wire 9 for the heating resistor 2 recognize.
Der Widerstand 2 des Katalysators liegt also außerhalb der Rauchbahn und ist gegen Kohlenstoffablagerung geschützt. Der Heizwiderstand 2 kann beliebig lange unter Spannung gehalten werden oder auch ausgeschaltet werden, sobald der Herd etwa 35O°C erreicht.The resistor 2 of the catalyst is therefore outside the smoke path and is protected against carbon deposits. The heating resistor 2 can be kept under voltage for any length of time or switched off as soon as the stove is about 35O ° C reached.
Wird der Widerstand 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 resistor 2 is supplied with current, the catalysis begins at the periphery of the catalyst and spreads in view of the strong heating caused by the combustion practically instantaneously down to its middle Area off.
Eatentans2rücl}e_Eatentans2rücl} e_
609851 /0739609851/0739
Claims (1)
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 true DE2623201A1 (en) | 1976-12-16 |
| DE2623201C2 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4304251A (en) * | 1977-11-19 | 1981-12-08 | Schaedel Hermann | Double seat valve with leak control |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2391425A1 (en) * | 1977-05-16 | 1978-12-15 | Cepem | PYROLYTIC OVEN WITH VARIABLE HEATING RAPIDITY |
| DE2811650C2 (en) * | 1978-03-17 | 1983-02-03 | E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen | Catalytic afterburner |
| FR2442655B1 (en) * | 1978-11-29 | 1985-05-31 | Dietrich & Cie De | CATALYTIC SMOKE PROCESSING CELL FOR DOMESTIC COOKING OVENS |
| 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 |
| DE19706186A1 (en) * | 1997-02-17 | 1998-08-20 | Miele & Cie | Pyrolytic cleaning operation control method for cooking esp. roasting oven |
| ITVE20030021U1 (en) * | 2003-10-31 | 2005-05-01 | I R C A S P A Ind Resiste Nze Corazzate | CATALYTIC CELL FOR COOKING OVENS. - |
| 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 |
Citations (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
Patent Citations (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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4304251A (en) * | 1977-11-19 | 1981-12-08 | Schaedel Hermann | Double seat valve with leak control |
Also Published As
| Publication number | Publication date |
|---|---|
| CH606922A5 (en) | 1978-11-30 |
| GB1518230A (en) | 1978-07-19 |
| NL7605521A (en) | 1976-12-02 |
| IT1078816B (en) | 1985-05-08 |
| ES448309A1 (en) | 1977-07-16 |
| FR2312734A1 (en) | 1976-12-24 |
| FR2312734B1 (en) | 1980-01-04 |
| BE841497A (en) | 1976-11-08 |
| DE2623201C2 (en) | 1981-12-10 |
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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 |