PT100837A - APPROPRIATE BURNER, PARTICULARLY SUITABLE FOR WALL-MOUNTED BOILERS - Google Patents
APPROPRIATE BURNER, PARTICULARLY SUITABLE FOR WALL-MOUNTED BOILERS Download PDFInfo
- Publication number
- PT100837A PT100837A PT100837A PT10083792A PT100837A PT 100837 A PT100837 A PT 100837A PT 100837 A PT100837 A PT 100837A PT 10083792 A PT10083792 A PT 10083792A PT 100837 A PT100837 A PT 100837A
- Authority
- PT
- Portugal
- Prior art keywords
- substantially spherical
- small
- spherical elements
- burner according
- burner
- Prior art date
Links
- 238000002485 combustion reaction Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 5
- 239000002737 fuel gas Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 5
- 238000009827 uniform distribution Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 210000000748 cardiovascular system Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000004379 membrane Anatomy 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002850 nasal mucosa Anatomy 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 210000005227 renal system Anatomy 0.000 description 1
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
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- 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
- F23D14/46—Details, e.g. noise reduction means
-
- 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
- F23D14/46—Details, e.g. noise reduction means
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/82—Preventing flashback or blowback
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2210/00—Noise abatement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/14—Special features of gas burners
- F23D2900/14582—Special features of gas burners with outlets consisting of layers of spherical particles
Description
'"QUEIMADOR APERFEIÇOADO, PARTICULARMEUTE ADEQUADO PARA CALDEIRAS MOUTADAS UA PAREDE” A presente invenção refere-se a um queimador que, sendo dotado de uma mistura ar-gás perfeita e económica com queda de pressão muito baixa, distribuição perfeita da velocidade da mistura no interior da zona de combustão, um volume de mistura muito reduzido acima da referida zona de combustão, sem qualquer possibilidade de ruído auto-induzido e com ausência total de deformações anormais na referida zona de combustão, proporciona um funcionamento racional, eficaz, silencioso e seguro, com poluição ambiental mínima.The present invention relates to a burner which, having a perfect and inexpensive air-gas mixture with very low pressure drop, perfect distribution of the speed of the mixture in the first stage of the burner. In the interior of the combustion zone, a very reduced volume of mixture above said combustion zone, without any possibility of self-induced noise and with total absence of abnormal deformations in said combustion zone, provides a rational, efficient, silent and safe operation , with minimal environmental pollution.
Como ê conhecido, as caldeiras para aquecimento central e/ou para produção de água quente doméstica, montadas no chão ou na parede, com tiragem induzida ou forçada, queimando gás natural ou GPL, dão origem a produtos de combustão que representam uma das causas mais comuns de poluição atmosférica. Relativamente a este aspecto, estes produtos de combustão, devido à não uniformidade da chama, que inclui uma região central de mistura muito rica com temperatura elevada, contem, além de diôxido de carbono e vapor de água, óxidos de azoto que não só irritam os olhos e a membrana da mucosa nasal como também têm efeitos negativos no sistema cardiovascular e renal e são também uma das causas das bem conhecidas chuvas ácidas quando está presente humidade atmosférica.As is known, boilers for central heating and / or for the production of domestic hot water, mounted on the floor or wall, with forced or forced draft, burning natural gas or LPG, give rise to combustion products which are one of the causes of air pollution. In this regard, these combustion products, due to the non-uniformity of the flame, which includes a very rich high temperature mixing region with high temperature, contain, in addition to carbon dioxide and water vapor, oxides of nitrogen which not only irritate the eyes and the membrane of the nasal mucosa as well as have negative effects on the cardiovascular and renal systems and are also one of the causes of well known acid rains when atmospheric humidity is present.
Para limitar a formação destes óxidos é assim necessário limitar a temperatura de combustão e, isto eon-segue-se essencialmente por pré-mistura do ar e combustível para formar uma mistura uniforme suficientemente fraca, isto é, com um mínimo de excesso de ar relativamente à quantidade estequiomêtrica, suseeptível de efectuar uma queima eorrecta à temperatura mais baixa possível.To limit the formation of these oxides it is therefore necessary to limit the combustion temperature and this is essentially followed by premixing the air and fuel to form a sufficiently weak uniform mixture, i.e. with a minimum of excess air to the stoichiometric amount, which is capable of effecting a correct burning at the lowest possible temperature.
Com este obgectivo o queimador inclui vulgarmente uma região de mistura ar/gás com excesso de ar, uma região de expansão e distribuição da mistura e uma grade metálica para lá da qual se realiza a combustão. Este tipo conhecido de queimador possui, contudo, uma série de desvantagens sendo as mais graves a deformação térmica da grade a qual ocorre em particular a baixas cargas, quando a chama praticamente toca a grade.With this object the burner commonly includes an air / gas mixture region with excess air, a region of expansion and distribution of the mixture and a metal grid beyond which combustion takes place. This known type of burner, however, has a number of disadvantages, the most severe being the thermal deformation of the grating which occurs in particular at low loads when the flame practically touches the grating.
Outros inconvenientes incluem a dificuldade de se obter: uma boa mistura ar/gás e a uma distribuição uniforme da mistura acima da grade de combustão, o perigo iminente de explosão se houver retorno da chama através das perfurações da grade devido â presença de um' grande volume de mistura combustível na parte acima da referida grade e um nível elevado de ruído devido a pulsações de pressão auto--induzidas no interior do queimador pela interacção mistura/ chama.Other drawbacks include the difficulty of obtaining: a good air / gas mixture and a uniform distribution of the mixture above the combustion grate, the imminent danger of explosion if there is a return of the flame through the perforations of the grate due to the presence of a large volume of fuel mixture in the part above said grid and a high level of noise due to self-induced pressure pulsations inside the burner by the blending / flame interaction.
As soluções para obviar alguns destes inconvenientes são já conhecidas no actual estado da técnica, por exemplo, para evitar a deformação da grade de combustão têm sido utilizadas grades cerâmicas ou grades metálicas dotadas com revestimento protector da luz e calor; pode obter-se uma boa mistura ar/gás e uma distribuição uniforme à custa de elevadas quedas de pressão por meioõie ventiladores e outros dispositivos semelhantes dispendiosos.Solutions to obviate some of these drawbacks are already known in the present state of the art, for example, to prevent deformation of the combustion grate ceramic grids or metal grids provided with light and heat protective coating have been used; a good air / gas mixture and a uniform distribution can be obtained at the expense of high pressure drops by means of fans and other similar expensive devices.
Contudo, nenhum dos queimadores conhecidos na especialidade consegue, utilizando meios económicos e racionais, obviar todos os inconvenientes anteriormente referidos, sendo isto o objectivo da presente invenção.However, none of the burners known in the art can, by economical and rational means, obviate all the above-mentioned drawbacks, this being the object of the present invention.
Isto consegue-se na prática dotando superiormente, de acordo com uma característica da presente invenção, o queimador, que inclui uma conduta de alimentação de gás combustível e uma conduta de alimentação de ar de combustão, com uma câmara perfurada inferiormente e aberta superiormente carregada com pequenos elementos pratieamente esféricos que podem ser de material cerâmico, metálico ou não metálico e de dimensões idênticas ou diferentes, através de cujos interstícios se faz fluir a mistura e sobre os quais se realiza a combustão. A mistura perfeita e a distribuição uniforme da mistura são asseguradas, desta maneira, pelos percursos sinuosos através dos interstícios dos elementos pratieamente esféricos que o gás e o ar têm assim que percorrer, contribuindo ainda, a presença dos referidos elementos, para reduzir o volume de material inflamável presente na parte superior da zona de combustão e, assim, o perigo de qualquer retorno da chama. Além disso, como já não está presente uma grade, não ocorre qualquer deformação prejudicial no interior da zona de combustão na qual os elementos pratieamente esféricos são livres de se expandirem sem qualquer restrição e por outro lado, como amplamente demonstrado por experiências, o sistema não origina ruído auto-induzido pelo que o queimador 4This is achieved in practice by providing, in accordance with a feature of the present invention, the burner, which includes a fuel gas feed conduit and a combustion air feed conduit, with a bottom and open top perforated chamber loaded with small, spherically shaped elements which may be of metallic or non-metallic ceramic material of identical or different size, through which interstices the mixture is flowed and upon which combustion takes place. The perfect mixing and uniform distribution of the mixture is thus ensured by the sinuous paths through the interstices of the relatively spherical elements which the gas and the air thus have to traverse, further contributing the presence of said elements, in order to reduce the volume of flammable material present at the top of the combustion zone and thus the danger of any return of the flame. In addition, since a grating is no longer present, no detrimental deformation occurs within the combustion zone in which the substantially spherical elements are free to expand without any restriction and on the other hand, as broadly demonstrated by experiments, the system does not causes self-induced noise whereby the burner 4
ê totalmente silencioso para qualquer condição de carga.is completely silent for any load condition.
De acordo com formas de realização preferidas desta invenção os referidos pequenos elementos praticamente esféricos são mantidos unidos por um recipiente adequado dotado inferiormente com perfurações ou por soldadura nos seus pontos de contacto para formar um único agregado de elementos praticamente esféricos.According to preferred embodiments of this invention said substantially spherical small elements are held together by a suitable container provided below with perforations or by welding at their points of contact to form a single aggregate of substantially spherical elements.
Esta invenção ê, em seguida, descrita em pormenor com referencia ao desenho que a acompanha, o qual ilustra uma forma de realização preferida apresentada a título de exemplo na qual se podem fazer modificações técnicas ou de construção mas sem afastamento do âmbito da presente invenção.This invention is now described in detail with reference to the accompanying drawing which illustrates a preferred exemplary embodiment in which technical or construction modifications may be made but without departing from the scope of the present invention.
Io referido desenho, 1 representa um queimador dotado com uma conduta de alimentação de gás combustível 2, uma conduta de alimentação de ar de combustão 3 e uma câmara de mistura 4. 0 queimador 1 ê dotado superiormente com uma câmara 5 a qual ê aberta no topo e é dotada com perfurações 6 na base, estando a referida câmara carregada com pequenos elementos cerâmicos esféricos ou praticamente esféricos 7 de dimensões idênticas, unidos por soldadura nos seus pontos de contacto para formar um único agregado de elementos esféricos 7.Said drawing, 1 shows a burner provided with a fuel gas feed conduit 2, a combustion air feed conduit 3 and a mixing chamber 4. The burner 1 is topped with a chamber 5 which is open at the and is provided with perforations 6 in the base, said chamber being loaded with small spherical or substantially spherical ceramic elements 7 of identical dimensions, welded together at their points of contact to form a single aggregate of spherical elements 7.
Claims (7)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI912368A IT1251560B (en) | 1991-09-06 | 1991-09-06 | PERFECTED BURNER, PARTICULARLY SUITABLE FOR WALL BOILERS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PT100837A true PT100837A (en) | 1994-05-31 |
Family
ID=11360621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PT100837A PT100837A (en) | 1991-09-06 | 1992-09-04 | APPROPRIATE BURNER, PARTICULARLY SUITABLE FOR WALL-MOUNTED BOILERS |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE1005472A3 (en) |
| DE (1) | DE4229070A1 (en) |
| ES (1) | ES2062913B1 (en) |
| FR (1) | FR2681126A1 (en) |
| GB (1) | GB2259566B (en) |
| IT (1) | IT1251560B (en) |
| NL (1) | NL9201558A (en) |
| PT (1) | PT100837A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE189512T1 (en) * | 1995-07-21 | 2000-02-15 | Siabs Industry S R L | BURNER HEAD ESPECIALLY FOR GAS BURNERS |
| US5591025A (en) * | 1995-07-24 | 1997-01-07 | Invernizzi; Gianmario | Combustion head, in particular for gas burners |
| DE10220155A1 (en) * | 2001-07-31 | 2003-11-13 | Rolf Kresel | Gas burner, for a central heating system, has a porous body with two zones for mixing the combustion air and fuel gas, and a porous combustion zone to prevent gas losses on starting up |
| DE10243307B4 (en) * | 2002-09-13 | 2006-06-08 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Apparatus and method for the controlled production of nano soot particles |
| DE102005026299A1 (en) * | 2005-06-08 | 2006-12-28 | Robert Bosch Gmbh | Premixing gas burner |
| CN103528062B (en) * | 2013-09-25 | 2015-10-28 | 杭州电子科技大学 | The fire radiant of the rotary premixed porous-medium gas hot stove of air blast and combustion method thereof |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE401837C (en) * | 1923-04-17 | 1924-09-09 | Si Da Deutsche Gasgluehlicht I | Heating burner |
| FR648608A (en) * | 1928-02-10 | 1928-12-12 | Mixer, regulator and fluid distributor | |
| US2528738A (en) * | 1944-11-27 | 1950-11-07 | Chrysler Corp | Fuel burner flame plate |
| DE2036510A1 (en) * | 1969-08-07 | 1971-02-18 | C.A.V. Ltd., Birmingham (Grossbritannien) | Burner for a fuel / air mixture |
| DE2211297A1 (en) * | 1971-04-26 | 1972-11-16 | CA. Sundberg AB, Kallhäll (Schweden) | Gaseous fuel burners |
| US3947233A (en) * | 1971-04-26 | 1976-03-30 | C. A. Sundberg Ab | Free-burning equipment |
| US3925024A (en) * | 1971-09-10 | 1975-12-09 | Borden Inc | Grid burner system |
| US4311456A (en) * | 1980-07-18 | 1982-01-19 | Bricmont & Associates, Inc. | Blast furnace stove |
| GB2155613A (en) * | 1984-03-06 | 1985-09-25 | Allday & Co Ltd William | Forge hearth burner assembly |
| DE3611909C3 (en) * | 1986-04-09 | 2000-03-16 | Ruhrgas Ag | Device for controlling the amount and / or the mixing ratio of a fuel gas-air mixture |
| JPS62258917A (en) * | 1986-04-18 | 1987-11-11 | Miura Co Ltd | Combustion promoting body for surface combustion consisting of ceramic particles |
| JPH01121609A (en) * | 1987-11-05 | 1989-05-15 | Miura Co Ltd | Burner head assembly for surface combustion |
| JPH02272218A (en) * | 1988-05-27 | 1990-11-07 | Miura Co Ltd | Flame stabilizing plate for premixing gas burner |
| GB8825515D0 (en) * | 1988-11-01 | 1988-12-07 | Shell Int Research | Gas burner with premixing/preheating zone |
-
1991
- 1991-09-06 IT ITMI912368A patent/IT1251560B/en active IP Right Grant
-
1992
- 1992-08-19 GB GB9217627A patent/GB2259566B/en not_active Expired - Fee Related
- 1992-08-26 BE BE9200756A patent/BE1005472A3/en not_active IP Right Cessation
- 1992-09-01 DE DE4229070A patent/DE4229070A1/en not_active Ceased
- 1992-09-03 FR FR9210532A patent/FR2681126A1/en active Pending
- 1992-09-04 PT PT100837A patent/PT100837A/en not_active Application Discontinuation
- 1992-09-04 ES ES09201899A patent/ES2062913B1/en not_active Expired - Lifetime
- 1992-09-07 NL NL9201558A patent/NL9201558A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE4229070A1 (en) | 1993-03-11 |
| ES2062913R (en) | 1996-12-01 |
| ITMI912368A0 (en) | 1991-09-06 |
| ES2062913B1 (en) | 1997-06-16 |
| BE1005472A3 (en) | 1993-08-03 |
| GB9217627D0 (en) | 1992-09-30 |
| FR2681126A1 (en) | 1993-03-12 |
| IT1251560B (en) | 1995-05-17 |
| GB2259566B (en) | 1995-05-10 |
| NL9201558A (en) | 1993-04-01 |
| ITMI912368A1 (en) | 1993-03-06 |
| GB2259566A (en) | 1993-03-17 |
| ES2062913A2 (en) | 1994-12-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5915954A (en) | Low emission gas burner | |
| US6082310A (en) | Air inlets for water heaters | |
| US3330267A (en) | Gas-fired infrared burners and heaters | |
| US2687127A (en) | Insulated flue | |
| PT100837A (en) | APPROPRIATE BURNER, PARTICULARLY SUITABLE FOR WALL-MOUNTED BOILERS | |
| US3285317A (en) | Multi-port gas burner | |
| US20120276488A1 (en) | Flame deflector for a water heater pilot burner | |
| US2627910A (en) | Grid port structure for gas burners | |
| US20220390108A1 (en) | High-capacity igniter | |
| US3223078A (en) | Warm air furnace | |
| JPS59180208A (en) | Safety device of kerosene burner | |
| CN210107730U (en) | Premixing low-nitrogen gas positive displacement water heater | |
| US3289665A (en) | Radiant gas burner assembly | |
| US3376100A (en) | Combustion apparatus | |
| KR20140005597U (en) | Pellet stove | |
| JP2008145087A (en) | Gas burner | |
| PL190322B1 (en) | Condensing premixing boiler for water and heating systems | |
| CN215446554U (en) | Portable stove easy to catch fire and efficient to burn | |
| CN207893150U (en) | Gas extinguishing fire protects electromagnetic valve structure | |
| CN206958956U (en) | A kind of direct-fired liquified natural gas vaporizer | |
| JPS5829807Y2 (en) | Boiler | |
| JPH0238180Y2 (en) | ||
| US621910A (en) | Smoke-consuming globe | |
| JPS6042244Y2 (en) | pilot burner | |
| CN103759261B (en) | A kind of infrared heating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BB1A | Laying open of patent application |
Effective date: 19931022 |
|
| FC3A | Refusal |
Effective date: 19990430 |