WO2005047775A1 - Cellule catalytique pour fours de cuisson - Google Patents

Cellule catalytique pour fours de cuisson Download PDF

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Publication number
WO2005047775A1
WO2005047775A1 PCT/EP2004/010196 EP2004010196W WO2005047775A1 WO 2005047775 A1 WO2005047775 A1 WO 2005047775A1 EP 2004010196 W EP2004010196 W EP 2004010196W WO 2005047775 A1 WO2005047775 A1 WO 2005047775A1
Authority
WO
WIPO (PCT)
Prior art keywords
cell
resistance element
catalytic
cooking ovens
catalytic cell
Prior art date
Application number
PCT/EP2004/010196
Other languages
English (en)
Inventor
Andrea Virzi
Duilio Capraro
Original Assignee
I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini filed Critical I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini
Publication of WO2005047775A1 publication Critical patent/WO2005047775A1/fr

Links

Classifications

    • 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

Definitions

  • the present invention relates to a catalytic cell for cooking ovens.
  • Cooking ovens are known in which seats are provided in their upper or side walls for housing catalytic cells to purify the oven exit air of fats and other aromatic substances present by transforming them into water and carbon dioxide.
  • These known catalytic cells generally consist of a discoidal honeycomb body (or lozenge) of cordierite or alumina clad with a palladium catalyst, or alternatively are formed from metal wool. As the rated operating temperature of said catalysts is higher than the oven operating temperature (200-250°C), these catalysts are of poor efficiency as they do not achieve complete purification.
  • FIG. 1 is a perspective view of a first embodiment of a catalytic cell
  • Figure 2 shows it assembled in the shell
  • Figure 3 shows a variant thereof.
  • the catalytic cell of the invention consists of a substantially cylind ⁇ cal body 2 of ceramic material which comprises in its annular perimeter 4 a series of recesses 6 parallel to the axis of the cylinder, and surrounds an inner honeycomb baffle 8 coated with a catalyst of precious metal, such as palladium.
  • the body can be of parallelepiped form with its perimetral edge comprising the recesses.
  • the annular perimetral part can be formed separate from the honeycomb baffle.
  • a resistive wire 10 of suitable length and cross-section to obtain the required power, generally between 50 W and 200 W depending on the catalytic cell dimensions and on the oven operating conditions, to raise the temperature of the honeycomb baffle to the optimum temperature for catalysis, generally between 300°C and 450°C.
  • the resistive spiral is wound about a semi-recess provided in the outer surface of the catalytic cell and then insulated electrically from the metal shell by a suitable layer of dielectric material.
  • the cell is enclosed by two half-shells 12 which are then joined together, they being provided with bendable lugs 14 which on the one hand prevent the cell escaping from the thus formed shell and on the other hand form flanges for its fixing to the oven surface.
  • One half-shell is provided with a suitable housing for an electrical connection block 16.
  • the lateral surface of the catalytic cell comprises a resistance element 18 consisting of a layer of resistive ink or paste, applied by silk screen technology or by spraying. A dielectric blanket is applied to the device obtained in this manner, the resultant assembly being retained by two half-shells.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Catalysts (AREA)
  • Baking, Grill, Roasting (AREA)

Abstract

Cette invention se rapporte à une cellule catalytique pour fours de cuisson, comprenant une chicane (8) en matériau céramique imprégnée d'un catalyseur approprié, se caractérisant en ce qu'un élément de résistance (10, 18) est appliqué sur la surface périmétrique de la cellule.
PCT/EP2004/010196 2003-10-31 2004-09-13 Cellule catalytique pour fours de cuisson WO2005047775A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVE20030021 ITVE20030021U1 (it) 2003-10-31 2003-10-31 Cella catalitica per forni di cottura. -
ITVE2003U000021 2003-10-31

Publications (1)

Publication Number Publication Date
WO2005047775A1 true WO2005047775A1 (fr) 2005-05-26

Family

ID=34587022

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/010196 WO2005047775A1 (fr) 2003-10-31 2004-09-13 Cellule catalytique pour fours de cuisson

Country Status (2)

Country Link
IT (1) ITVE20030021U1 (fr)
WO (1) WO2005047775A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010076204A1 (fr) * 2008-12-31 2010-07-08 Arcelik Anonim Sirketi Four comprenant un filtre
CN107860042A (zh) * 2017-12-11 2018-03-30 广东海信家电有限公司 油烟机油烟燃烧净化装置和方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1518230A (en) * 1975-05-30 1978-07-19 Europ Equip Menager Smoke catalyst assembly for a pyrolytic self-cleaning ove
FR2420092A1 (fr) * 1978-03-17 1979-10-12 Ego Elektro Blanc & Fischer Perfectionnements aux dispositifs de postcombustion catalytiques, notamment pour fours de cuisines ou analogues
EP1378711A2 (fr) * 2002-06-19 2004-01-07 Ceramaspeed Limited Radiateur électrique
EP1400758A1 (fr) * 2002-09-23 2004-03-24 CANDY S.p.A. Element de chauffage pour un four cuisinière

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1518230A (en) * 1975-05-30 1978-07-19 Europ Equip Menager Smoke catalyst assembly for a pyrolytic self-cleaning ove
FR2420092A1 (fr) * 1978-03-17 1979-10-12 Ego Elektro Blanc & Fischer Perfectionnements aux dispositifs de postcombustion catalytiques, notamment pour fours de cuisines ou analogues
EP1378711A2 (fr) * 2002-06-19 2004-01-07 Ceramaspeed Limited Radiateur électrique
EP1400758A1 (fr) * 2002-09-23 2004-03-24 CANDY S.p.A. Element de chauffage pour un four cuisinière

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010076204A1 (fr) * 2008-12-31 2010-07-08 Arcelik Anonim Sirketi Four comprenant un filtre
CN107860042A (zh) * 2017-12-11 2018-03-30 广东海信家电有限公司 油烟机油烟燃烧净化装置和方法

Also Published As

Publication number Publication date
ITVE20030021U1 (it) 2005-05-01

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