ITMI911159A1 - NATURAL DRAWN FLAMELESS CATALYTIC HEATER - Google Patents
NATURAL DRAWN FLAMELESS CATALYTIC HEATERInfo
- Publication number
- ITMI911159A1 ITMI911159A1 IT91MI001159A ITMI911159A ITMI911159A1 IT MI911159 A1 ITMI911159 A1 IT MI911159A1 IT 91MI001159 A IT91MI001159 A IT 91MI001159A IT MI911159 A ITMI911159 A IT MI911159A IT MI911159 A1 ITMI911159 A1 IT MI911159A1
- Authority
- IT
- Italy
- Prior art keywords
- burner
- oxidized
- combustion
- catalyst
- primary
- Prior art date
Links
- 230000003197 catalytic effect Effects 0.000 title abstract 5
- 239000003054 catalyst Substances 0.000 abstract 3
- 238000002485 combustion reaction Methods 0.000 abstract 3
- 239000000446 fuel Substances 0.000 abstract 2
- 239000000376 reactant Substances 0.000 abstract 2
- 238000013019 agitation Methods 0.000 abstract 1
- 239000003153 chemical reaction reagent Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C13/00—Apparatus in which combustion takes place in the presence of catalytic material
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)
- Spray-Type Burners (AREA)
Abstract
Un riscaldatore catalitico a tiraggio naturale comprendente un corpo tubolare che definisce un passaggio allungato per il flusso di fluido avente un ingresso per la miscela aria/combustibile ad una estremità e un'uscita del prodotto di combustione alla sua altra estremità. All'interno del passaggio a valle del bruciatore catalitico primario è disposto un bruciatore catalitico secondario per il completamento della combustione di eventuale combustibile non ossidato contenuto nello scarico proveniente dal bruciatore catalitico primario. Una bassa caduta di pressione attraverso il bruciatore primario viene realizzata mediante una costruzione tubolare del bruciatore tenuta contro la parete di passaggio, mentre la combustione della maggior parte dei reagenti viene realizzata prevedendo un'area appropriata di superficie del catalizzatore. All'interno del bruciatore può essere disposto un elemento di agitazione per spingere in modo delicato i reagenti all'infuori verso il catalizzatore. Una bassa caduta di pressione attraverso il bruciatore secondario viene realizzata prevedendo una pluralità di passaggi assiali che presentano una resistenza relativamente piccola al flusso di gas. Le superfici dei passaggi sono rivestite con un materiale catalizzatore in modo da assicurare che eventuali reagenti non ossidati vengano ossidati.A natural draft catalytic heater comprising a tubular body which defines an elongated passage for the flow of fluid having an inlet for the air / fuel mixture at one end and an outlet of the combustion product at its other end. A secondary catalytic burner is arranged inside the passage downstream of the primary catalytic burner to complete the combustion of any non-oxidized fuel contained in the exhaust coming from the primary catalytic burner. A low pressure drop across the primary burner is achieved by means of a tubular construction of the burner held against the passage wall, while the combustion of most of the reactants is achieved by providing an appropriate surface area of the catalyst. Inside the burner an agitation element can be arranged to gently push the reactants outwards towards the catalyst. A low pressure drop across the secondary burner is achieved by providing a plurality of axial passages which have a relatively small resistance to the flow of gas. The surfaces of the passages are coated with a catalyst material to ensure that any non-oxidized reagents are oxidized.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002015620A CA2015620A1 (en) | 1990-04-27 | 1990-04-27 | Catalytic heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ITMI911159A0 ITMI911159A0 (en) | 1991-04-29 |
| ITMI911159A1 true ITMI911159A1 (en) | 1992-06-26 |
Family
ID=4144855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT91MI001159A ITMI911159A1 (en) | 1990-04-27 | 1991-04-29 | NATURAL DRAWN FLAMELESS CATALYTIC HEATER |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA2015620A1 (en) |
| DE (1) | DE4111607A1 (en) |
| FR (1) | FR2661481A1 (en) |
| GB (1) | GB2243310A (en) |
| IT (1) | ITMI911159A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4204320C1 (en) * | 1992-02-13 | 1993-08-12 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De | |
| US5403184A (en) * | 1992-05-20 | 1995-04-04 | Matsushita Electric Industrial Co., Ltd. | Exothermic apparatus |
| DE102010008209A1 (en) * | 2010-02-17 | 2011-08-18 | Daimler AG, 70327 | Catalytic burner |
| US20240085017A1 (en) * | 2021-01-29 | 2024-03-14 | Christian Skovbo | Burner for liquid fuel and method for operating such burner |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB972942A (en) * | 1961-02-28 | 1964-10-21 | Universal Oil Prod Co | Portable infra-red spot heater |
| US3240256A (en) * | 1963-11-19 | 1966-03-15 | Canadian Patents Dev | Catalytic heater |
| US3407025A (en) * | 1964-10-19 | 1968-10-22 | Universal Oil Prod Co | Semi-catalytic infra-red heat producing unit |
| DE1801668A1 (en) * | 1967-10-13 | 1969-08-07 | United Carr Inc | Catalytic burner and method for forming a catalytic unit |
| FR2329936A1 (en) * | 1974-10-22 | 1977-05-27 | Fond Franco Belges | Liquid fuel burner assembly - has concentric mesh cylinders connected to apertured annular plates separated by webs |
| JPS5728902A (en) * | 1980-07-25 | 1982-02-16 | Sanyo Electric Co Ltd | Catalytic combustion apparatus |
| JPS57210207A (en) * | 1981-06-22 | 1982-12-23 | Central Res Inst Of Electric Power Ind | Mounting method for catalyst in catalytic combustion apparatus |
| JPS59109711A (en) * | 1982-12-15 | 1984-06-25 | Nakajima Doukoushiyo:Kk | Heater employing liquefied gas as heat source |
| JPS608612A (en) * | 1983-06-24 | 1985-01-17 | Matsushita Electric Ind Co Ltd | Burner with catalyst |
| EP0198948A3 (en) * | 1985-04-11 | 1988-09-21 | Nippon Shokubai Kagaku Kogyo Co., Ltd | Catalytic combustor for combustion of lower hydrocarbon fuel |
| JPS6233213A (en) * | 1985-08-05 | 1987-02-13 | Nippon Chem Plant Consultant:Kk | Combustion unit |
-
1990
- 1990-04-27 CA CA002015620A patent/CA2015620A1/en not_active Abandoned
-
1991
- 1991-04-02 GB GB9106895A patent/GB2243310A/en not_active Withdrawn
- 1991-04-10 DE DE4111607A patent/DE4111607A1/en not_active Withdrawn
- 1991-04-25 FR FR9105148A patent/FR2661481A1/en not_active Withdrawn
- 1991-04-29 IT IT91MI001159A patent/ITMI911159A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CA2015620A1 (en) | 1991-10-27 |
| GB9106895D0 (en) | 1991-05-22 |
| ITMI911159A0 (en) | 1991-04-29 |
| FR2661481A1 (en) | 1991-10-31 |
| GB2243310A (en) | 1991-10-30 |
| DE4111607A1 (en) | 1991-10-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 0003 | Withdrawn |