EP0520913A1 - Heizung mit katalytischem Brenner - Google Patents
Heizung mit katalytischem Brenner Download PDFInfo
- Publication number
- EP0520913A1 EP0520913A1 EP92420204A EP92420204A EP0520913A1 EP 0520913 A1 EP0520913 A1 EP 0520913A1 EP 92420204 A EP92420204 A EP 92420204A EP 92420204 A EP92420204 A EP 92420204A EP 0520913 A1 EP0520913 A1 EP 0520913A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- catalytic
- combustion
- thermal
- face
- upstream
- 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
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 85
- 238000010438 heat treatment Methods 0.000 title claims abstract description 18
- 238000002485 combustion reaction Methods 0.000 claims abstract description 46
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 42
- 239000000203 mixture Substances 0.000 claims abstract description 29
- 239000003517 fume Substances 0.000 claims abstract description 26
- 239000007789 gas Substances 0.000 claims abstract description 12
- 230000005855 radiation Effects 0.000 claims abstract description 11
- 238000007084 catalytic combustion reaction Methods 0.000 claims abstract description 10
- 238000010411 cooking Methods 0.000 claims description 15
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000005465 channeling Effects 0.000 claims 1
- 235000012431 wafers Nutrition 0.000 description 13
- 239000003570 air Substances 0.000 description 12
- 239000000919 ceramic Substances 0.000 description 6
- 230000004907 flux Effects 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 5
- 230000003416 augmentation Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 241000256815 Apocrita Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241001080024 Telles Species 0.000 description 1
- 241000897276 Termes Species 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000021183 entrée Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 150000003057 platinum Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/12—Radiant burners
- F23D14/18—Radiant burners using catalysis for flameless combustion
Definitions
- the present invention relates to a heating device with a catalytic burner.
- cooler any device, portable or not, integrating or connected to a source of combustible gas, using the combustion heat produced by the catalytic burner for different purposes, such as cooking, heating, welding, generation of hot air, crimping of the hair, etc., and possibly comprising other elements or members allowing the use of said device for the chosen end or destination, for example a soldering failure, if the use selected for the device is welding.
- Catalytic burner means any assembly making it possible to burn a combustible gas, by mixing the latter with so-called primary air, upstream of a catalytic structure, flameless combustion of said mixture during its passage through the catalytic structure, and evacuation of combustion fumes by the downstream face of this same structure.
- a burner according to the invention called “induced air”
- secondary air catalytic burners, for which the combustible gas passes directly through the catalytic structure, and is burnt without flame on the face downstream of said catalytic structure, by mixing with ambient air.
- catalytic structure or “catalytic combustion structure” is meant any structure permeable to the mixture to be burned, and sufficiently thick to generate a pressure drop during the passage of said mixture, from the upstream face to the downstream face of said structure.
- This structure extends on the surface transversely or perpendicular to the direction of passage of the mixture to be burned.
- This structure comprises a support which is inert with respect to the mixture to be burned, the combustible gas, and the combustion gases, and which is mechanically resistant to the high temperatures generated by catalytic combustion.
- This support is coated, at least on its internal surface or surfaces, directly or indirectly, with a catalytic material proper, such as platinum or platinum salts, catalyzing combustion.
- the catalytic structures consisting of a slice or a core of a refractory material such as ceramic, crossed by a plurality of adjacent transverse channels, and on the other hand structures of the tissue or catalytic sieve type.
- Induced air catalytic burners are characterized by a high specific calorific power, that is to say per unit area, between 10 and 100 W / cm2.
- a high specific calorific power that is to say per unit area, between 10 and 100 W / cm2.
- Such a high specific power does not pose too many problems, as long as the surface of the catalytic structure remains relatively small. This power becomes an obstacle, as soon as a certain surface of the catalytic structure is exceeded, due to the significant heating observed on the device.
- Such a heating can be easily explained for a circular or cylindrical catalytic structure, having a constant thickness, by the fact that the calorific power obtained increases with the square of the diameter, while the exchange surface of the burner with the walls and the receiver thermal consumption of combustion heat increases with diameter.
- the device heats up mainly upstream of the catalytic structure, because in fact, in the thickness of the latter and in the direction of passage of the mixture to be burned, there is a radiant front of combustion without flames, nearby immediate of the upstream face of said catalytic structure. And the rest of the thickness of the catalytic structure only serves to complete the combustion and evacuate the fumes.
- a reverse operation is chosen, in particular upside down of the catalytic burner described above, in that, on the one hand, the thermal receiver extends opposite the upstream face (and not downstream face) of the catalytic structure, along practically the entire surface of the latter, so as to receive the radiated thermal energy emitted by the radiant front of combustion of the catalytic structure in operation.
- the receiver is chosen, arranged, or constructed to dissipate, on the side opposite to the upstream face of the catalytic structure, at least 30% of the thermal energy received by radiation from the radiating front.
- the thermal receptor is a ceramic glass element.
- Such a configuration also provides the following determining advantages.
- the mixture to be burned being introduced into the burner, by the downstream side of the catalytic structure, is only in thermal relation with the upstream face of the latter at the last moment, that is to say just before its combustion; under these conditions, the mixture to be burned is at a relatively lower temperature in the distribution chamber, which significantly reduces the catches of fire upstream of the catalytic structure.
- the thermal receiver is arranged opposite the most radiant side, that is to say the upstream side, so a heater according to the invention has a good combustion efficiency.
- the solution according to the invention makes it possible both to reduce the risk of catching fire upstream of the catalytic structure, and to increase the efficiency of the catalytic burner, which is never encountered for a catalytic burner classic induced air.
- a thermal receptor made of a ceramic-ceramic material completely meets these requirements, but also a metal plate blackened on both sides.
- the present invention also has the following technical characteristics.
- a combustion smoke deflector is arranged opposite the downstream face of the catalytic structure, to return said smoke from the upstream side of said structure, outside the combustion chamber. distribution.
- a heating device dissipates about a good third of the heat produced by catalytic combustion by convection, that is to say in combustion fumes. Consequently, the return of the fumes in direction of use, that is to say on the external side of the thermal receiver, makes it possible to improve the efficiency of the heating appliance, in significant proportions; this appears particularly important for a heating appliance of the cooking stove type.
- the present invention also presents the following means making it possible to improve the efficiency of a heating apparatus according to the invention.
- the flue gas deflector is thermally insulated, not only to limit the outside temperature of the walls of the heating appliance, but also to lose the least sensible heat in the flue gases.
- the heater according to the invention comprises heat exchange means, for example fins, between, on one side inside the distribution chamber, and on the other side the combustion fumes returned to the upstream side of the catalytic structure, generally cooler.
- heat exchange means for example fins
- the heating appliance shown in FIGS. 1 and 2 generally comprises, on the one hand, a catalytic burner 1, more particularly described below, and a thermal receiver 2, constituted by a circular wafer of a vitro-ceramic, this receiver consuming at least part of the heat generated by the catalytic burner 1, and being arranged to receive a thermal load on its external face 2b, for example a container in which cooking is carried out.
- the assembly described above is arranged vertically, the thermal receiver 2 is placed above the catalytic burner 1, and the gas circulation takes place vertically, from top to bottom, then from bottom to top as described below; and the thermal receiver 2 is arranged substantially horizontally.
- the thermal receiver 2 in relation to the catalytic combustion front 10 inside and near the upstream face 6a of the catalytic structure 6, the thermal receiver 2 extends opposite the upstream face 6a above, along practically the entire surface of the latter, so as to receive the radiated thermal energy emitted by the radiant front of combustion of the catalytic structure in operation.
- a deflector 8 of the combustion fumes leaving the downstream face 6b of the catalytic structure 6 is disposed opposite and at a distance of this downstream face.
- This deflector 8 by its shape shown by way of example in FIG. 1, associating from the inside towards the outside a conical part 8a directed downwards and another part 8b directed upwards, makes it possible to return the fumes on the upstream side of the structure 6, and outside of the distribution chamber 5.
- the fumes thus returned serve to heat the thermal load, for example a pan whose content is to be heated or reheated, present on glass ceramic plate 2.
- This deflector 8 also serves as a reflective screen, placed facing the downstream face 6b of the catalytic structure 6, for reflecting the radiation emitted by this downstream face, still outside the distribution chamber 5.
- the catalytic burner 1 comprises means 9 for circulating the combustion fumes back. These means consist of an annular channel determined between an internal metallic ferrule 12 closing the distribution chamber 5, and an external metallic ferrule 13.
- the apparatus according to FIGS. 1 and 2 also includes means for heat exchange, between the inside of the distribution chamber 5 and the combustion fumes circulating in the abovementioned annular channel; these means consist of a plurality of radial fins 11, in thermal contact with the wall 12, around the flattened cylindrical volume determined by the two wafers 6 and 2, between the internal metallic ferrule 12 and the external metallic ferrule 13, so as to provide between the fins 11 circulation passages. These fins 11 make it possible to extract heat from the distribution chamber 5, to heat the fumes, and thus increase the supply of heat by convection to the thermal load.
- the circulation means 9 can also be eliminated, while retaining the radial fins 11 of heat exchange.
- the heat developed by the combustion front 10, and consequently by the catalytic burner is transferred to the thermal receiver 2, and to the thermal load present on the latter, mainly by radiation between the upstream face 6a. of the catalytic structure 6 and the internal face 2a of the receiver, but also for another part by the combustion fumes which bring their heat to the receiver 2 and to the thermal load, and for a last part by metallic conduction between structure 6 and receiver 2.
- the mixture to be burned can be introduced from the side or around the periphery of the catalytic structure, between the latter and the thermal receptor.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
- Catalysts (AREA)
- Incineration Of Waste (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9108339A FR2678360B1 (fr) | 1991-06-28 | 1991-06-28 | Appareil de chauffage avec bruleur catalytique. |
FR9108339 | 1991-06-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0520913A1 true EP0520913A1 (de) | 1992-12-30 |
EP0520913B1 EP0520913B1 (de) | 1994-10-26 |
Family
ID=9414682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92420204A Expired - Lifetime EP0520913B1 (de) | 1991-06-28 | 1992-06-15 | Heizung mit katalytischem Brenner |
Country Status (6)
Country | Link |
---|---|
US (1) | US5251609A (de) |
EP (1) | EP0520913B1 (de) |
JP (1) | JP3437190B2 (de) |
AT (1) | ATE113360T1 (de) |
DE (1) | DE69200573T2 (de) |
FR (1) | FR2678360B1 (de) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2708337A1 (fr) * | 1993-07-28 | 1995-02-03 | Applic Gaz Sa | Appareil de chauffage avec brûleur catalytique, et un dispositif de visualisation de son allumage. |
FR2727191A1 (fr) * | 1994-11-22 | 1996-05-24 | Applic Gaz Sa | Appareil de chauffage avec bruleur catalytique, notamment rechaud de cuisson |
FR2732752A1 (fr) * | 1995-04-05 | 1996-10-11 | Applic Gaz Sa | Bruleur catalytique a air induit, et appareil integrant un tel bruleur |
FR2741140A1 (fr) * | 1995-11-14 | 1997-05-16 | Applic Gaz Sa | Appareil de chauffage avec bruleur catalytique |
FR2741139A1 (fr) * | 1995-11-14 | 1997-05-16 | Applic Gaz Sa | Rechaud avec bruleur catalytique, integre dans une table de cuisson |
FR2787866A1 (fr) | 1998-12-23 | 2000-06-30 | Applic Gaz Sa | Structure de combustion catalytique, bruleur catalytique la comportant et appareil de chauffage comprenant celui-ci |
WO2017177853A1 (zh) * | 2016-04-14 | 2017-10-19 | 中国科学院大连化学物理研究所 | 一种极低污染物排放的催化无焰燃烧装置及燃烧方法 |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2682361B2 (ja) * | 1992-12-09 | 1997-11-26 | 日本鋼管株式会社 | 排熱回収型燃焼装置 |
JP2682362B2 (ja) * | 1992-12-09 | 1997-11-26 | 日本鋼管株式会社 | 排熱回収型燃焼装置 |
NL1004097C2 (nl) * | 1996-09-23 | 1998-03-24 | Gastec Nv | Keramische kookplaat. |
DE19901145A1 (de) * | 1999-01-14 | 2000-07-20 | Krieger Gmbh & Co Kg | Als Flächenstrahler ausgebildeter Infrarot-Strahler |
US6213761B1 (en) * | 1999-08-10 | 2001-04-10 | The Coleman Company, Inc. | Heating apparatus |
IT250368Y1 (it) | 2000-09-05 | 2003-09-10 | Whirlpool Co | Apparecchio di cottura con bruciatore catalitico |
JP2002206713A (ja) * | 2001-01-10 | 2002-07-26 | Tokyo Gas Co Ltd | 平坦加熱面型ガスコンロ |
US6497571B1 (en) | 2001-04-20 | 2002-12-24 | Teledyne Energy Systems, A Division Of Teledyne | Durable catalytic burner system |
WO2004051145A1 (en) * | 2002-11-29 | 2004-06-17 | Lg Electronics Inc. | Gas radiation oven range |
US8517717B2 (en) * | 2004-08-13 | 2013-08-27 | Velocys, Inc. | Detonation safety in microchannels |
US20070044667A1 (en) * | 2005-08-26 | 2007-03-01 | Saflame Product Corp. | Contained flame heating system and method for maintaining chafing dishes and the like heated for prolonged periods |
US7824654B2 (en) * | 2005-11-23 | 2010-11-02 | Wilson Mahlon S | Method and apparatus for generating hydrogen |
US7766005B2 (en) * | 2006-01-20 | 2010-08-03 | Lg Electronics Inc. | Gas radiation burner and controlling method thereof |
SE530775C2 (sv) * | 2007-01-05 | 2008-09-09 | Zemission Ab | Värmeanordning för katalytisk förbränning av vätskeformiga bränslen samt en spis innefattande en sådan värmeanordning |
US10690340B2 (en) * | 2010-01-06 | 2020-06-23 | Precision Combustion, Inc. | Flameless cooking appliance |
US20140338660A1 (en) * | 2011-11-14 | 2014-11-20 | Gregory Alan Kelly | Gas powered heater |
KR101573989B1 (ko) * | 2013-12-26 | 2015-12-02 | 엘지전자 주식회사 | 조리기기 및 버너 유닛 |
DE102015207056A1 (de) * | 2015-04-17 | 2016-10-20 | Bielomatik Leuze Gmbh + Co. Kg | Heizvorrichtung und Heizverfahren |
US10584869B2 (en) * | 2015-07-27 | 2020-03-10 | The United States Of America As Represented By The Secretary Of The Army | Heater |
US11877687B2 (en) | 2015-07-27 | 2024-01-23 | The United States Of America As Represented By The Secretary Of The Army | Heater and cookware for flameless catalytic combustion |
DE102016122776A1 (de) * | 2016-11-25 | 2018-05-30 | Frima International Ag | Gargerät |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3614059A1 (de) * | 1985-04-27 | 1987-01-08 | Nakajima Dokosho Kk | Vorrichtung zur erzeugung eines heissgasstrahls |
EP0313479A1 (de) * | 1987-10-20 | 1989-04-26 | Application Des Gaz | Heizvorrichtung mit katalytischem Brenner |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3299938A (en) * | 1965-03-29 | 1967-01-24 | Corning Glass Works | Gas-fired radiant burner |
US4189294A (en) * | 1977-10-18 | 1980-02-19 | Comstock & Wescott Inc. | Flameless combustion burner and method of operation |
SU1252613A1 (ru) * | 1985-03-14 | 1986-08-23 | Институт газа АН УССР | Реактор дл термокаталитической очистки газообразных выбросов |
-
1991
- 1991-06-28 FR FR9108339A patent/FR2678360B1/fr not_active Expired - Fee Related
-
1992
- 1992-06-15 DE DE69200573T patent/DE69200573T2/de not_active Expired - Fee Related
- 1992-06-15 AT AT92420204T patent/ATE113360T1/de not_active IP Right Cessation
- 1992-06-15 EP EP92420204A patent/EP0520913B1/de not_active Expired - Lifetime
- 1992-06-23 US US07/902,848 patent/US5251609A/en not_active Expired - Fee Related
- 1992-06-26 JP JP16922692A patent/JP3437190B2/ja not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3614059A1 (de) * | 1985-04-27 | 1987-01-08 | Nakajima Dokosho Kk | Vorrichtung zur erzeugung eines heissgasstrahls |
EP0313479A1 (de) * | 1987-10-20 | 1989-04-26 | Application Des Gaz | Heizvorrichtung mit katalytischem Brenner |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2708337A1 (fr) * | 1993-07-28 | 1995-02-03 | Applic Gaz Sa | Appareil de chauffage avec brûleur catalytique, et un dispositif de visualisation de son allumage. |
FR2727191A1 (fr) * | 1994-11-22 | 1996-05-24 | Applic Gaz Sa | Appareil de chauffage avec bruleur catalytique, notamment rechaud de cuisson |
FR2732752A1 (fr) * | 1995-04-05 | 1996-10-11 | Applic Gaz Sa | Bruleur catalytique a air induit, et appareil integrant un tel bruleur |
FR2741140A1 (fr) * | 1995-11-14 | 1997-05-16 | Applic Gaz Sa | Appareil de chauffage avec bruleur catalytique |
FR2741139A1 (fr) * | 1995-11-14 | 1997-05-16 | Applic Gaz Sa | Rechaud avec bruleur catalytique, integre dans une table de cuisson |
WO1997018416A1 (fr) * | 1995-11-14 | 1997-05-22 | Application Des Gaz | Appareil de cuisson avec bruleur catalytique |
FR2787866A1 (fr) | 1998-12-23 | 2000-06-30 | Applic Gaz Sa | Structure de combustion catalytique, bruleur catalytique la comportant et appareil de chauffage comprenant celui-ci |
WO2017177853A1 (zh) * | 2016-04-14 | 2017-10-19 | 中国科学院大连化学物理研究所 | 一种极低污染物排放的催化无焰燃烧装置及燃烧方法 |
US10859261B2 (en) | 2016-04-14 | 2020-12-08 | Dalian Institute Of Chemical Physics, Chinese Academy Of Sciences | Catalytic flameless combustion apparatus with extremely low pollutant emission and combustion method |
Also Published As
Publication number | Publication date |
---|---|
JPH05187618A (ja) | 1993-07-27 |
FR2678360B1 (fr) | 1993-09-10 |
DE69200573T2 (de) | 1995-03-09 |
EP0520913B1 (de) | 1994-10-26 |
DE69200573D1 (de) | 1994-12-01 |
JP3437190B2 (ja) | 2003-08-18 |
FR2678360A1 (fr) | 1992-12-31 |
ATE113360T1 (de) | 1994-11-15 |
US5251609A (en) | 1993-10-12 |
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