EP1582810B1 - Brûleur cylindrique - Google Patents
Brûleur cylindrique Download PDFInfo
- Publication number
- EP1582810B1 EP1582810B1 EP20050251921 EP05251921A EP1582810B1 EP 1582810 B1 EP1582810 B1 EP 1582810B1 EP 20050251921 EP20050251921 EP 20050251921 EP 05251921 A EP05251921 A EP 05251921A EP 1582810 B1 EP1582810 B1 EP 1582810B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plates
- sections
- heat chamber
- combustion plates
- combustion
- 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.)
- Expired - Fee Related
Links
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
- F23D14/02—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
- F23D2203/00—Gaseous fuel burners
- F23D2203/10—Flame diffusing means
- F23D2203/101—Flame diffusing means characterised by surface shape
- F23D2203/1012—Flame diffusing means characterised by surface shape tubular
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/10—Flame diffusing means
- F23D2203/102—Flame diffusing means using perforated plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2212/00—Burner material specifications
- F23D2212/10—Burner material specifications ceramic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2213/00—Burner manufacture specifications
Definitions
- the present invention relates to a cylindrical burner including a heat chamber constituted by combining plural strip-shaped combustion plates, which have a plurality of burner ports, in a cylindrical shape.
- the heat chamber is assembled by using a frame having plural window frames in a peripheral direction, fitting combustion plates in the respective window frames from the outside, screwing protection frames abutting against outer surfaces in peripheral parts of the respective combustion plates to the frame, and fixing the respective combustion plates to the frame (e.g., see Japanese Utility Model Publication No. 44-2634 ).
- a cylindrical burner including: a heat chamber constituted by combining plural strip-shaped combustion plates, which have a plurality of burner ports, in a cylindrical shape; a coupling member that extends in an axial direction inside the heat chamber; and a pair of holding plates fixed at both ends of the coupling member, wherein the respective holding plates are set in abutment against respective end faces of the heat chamber via end face packings overlapping the respective end faces to sandwich the heat chamber with both the holding plates from both sides in the axial direction.
- the frame with a complicated structure and the protection frames are made unnecessary, assembling is easy, and cost can be reduced.
- cylindrical flanges section bending inwardly in the axial direction are formed in outer peripheries of the respective holding plates and outer surfaces at ends of the heat chamber are covered by the flange sections such that it is possible to prevent the combustion plates from shifting to the outside in the radial direction.
- a cylindrical burner is also disclosed by DE 196 27 103 C .
- embodiments of the invention seek to make it possible to tighten the respective combustion plates inwardly in the radial direction and make it easier to assemble the holding plates in order to provide a cylindrical burner having improved assemblability in which gas does not leak from gaps among the combustion plates.
- the cylindrical burner includes a heat chamber constituted by combining plural strip-shaped combustion plates, which have a plurality of burner ports, in a cylindrical shape a coupling member that extends in an axial direction inside the heat chamber and a pair of holding plates fixed to both ends of the coupling member, the heat chamber being sandwiched from both sides in the axial direction by both the holding plates by setting the respective holding plates in abutment against end faces of the heat chamber via end face packings overlapping the respective end faces, wherein outer peripheral packing sections overlapping outer surfaces at the ends of the respective combustion plates are extended to outer peripheries of the respective end face packings and cylindrical flange sections bent inwardly in the axial direction are formed on outer peripheries of the respective holding plates such that the outer peripheral packing sections are compressed by a predetermined interference and sandwiched between the inner surfaces of the flange sections and the outer surfaces of the respective combustion plates thereof.
- an inner diameter of the flange sections can preferably be set larger than an outer diameter of the ends of the heat chamber by a thickness of the outer peripheral packing sections in a compressed state.
- the outer surfaces at the ends of the combustion plates are never scraped by the flange sections when the holding plates are assembled with the heat chamber.
- the outer peripheral packing sections are naturally sandwiched between inner surfaces of the flange sections and the outer surfaces at the ends of the combustion plates from base end sides thereof while being compressed.
- the flange sections are externally fit in the outer surfaces at the ends of the heat chamber smoothly while sandwiching the outer peripheral packing sections between the outer surfaces at the ends of the combustion plates and the flange sections when the flange sections are pressed inwardly in the axial direction. Therefore, it is easy to assemble the holding plates with the heat chamber.
- the heat chamber is constituted by combining the plural combustion plates in a cylindrical shape in a state in which side packings along side edges of the respective combustion plates are interposed among the respective combustion plates, even if the inner diameter of the flange sections are set larger than the outer diameter of the ends of the heat chamber in a free state, it is possible to compress the side packings by tightening the respective combustion plates strongly inwardly in the radial direction by a compression reaction of the outer peripheral packing section. Therefore, in this case, it is also possible to make it easy to assemble the holding plates and secure a sealing property by the side packings among the combustion plates.
- the end face packings and the side packings are formed by a ceramic packing molded by impregnating a binder in a ceramic fiber.
- the ceramic packing has a heat resistance
- the binder gradually decomposes thermally and disappears as time elapses and thickness of the ceramic packing decreases (becomes thin).
- a tightening force of the combustion plates decreases.
- the outer peripheral packing sections may separate from the end face packings and come off to fall from gaps between the flange sections of the holding plates and the outer surfaces at the ends of the combustion plates. It is likely that the outer peripheral packing sections, which have fallen from the gaps, touch flames to cause combustion failure.
- ring members which bind the plural combustion plates in a cylindrical shape, are mounted in parts adjacent to the outer peripheral packing sections on the outer surface of the heat chamber inwardly in the axial direction, and the gaps, which are formed between the outer surfaces at the ends of the respective combustion plates and the inner surfaces of the flange sections of the respective holding plates, are closed by the ring members.
- sunken sections sunken inwardly in the radial direction on the outer surfaces of the respective combustion plates thereof set an inner diameter of the flange sections of the respective holding plates such that the outer peripheral packing sections are compressed by a predetermined interference and sandwiched between the inner surfaces of the flange sections and the sunken sections, and mount the ring members to engage with the sunken sections. Consequently, steps at inner ends in the axial direction of the sunken sections work as stoppers to prevent the ring members from shifting. Therefore, post processing for preventing the ring members from shifting is made unnecessary, which is advantageous in realizing a reduction in cost.
- a cylindrical burner of the embodiment shown in FIG. 1 includes a heat chamber 1 of a cylindrical shape, a coupling member 2 (see FIGS. 2 and 3 ) that extends in an axial direction inside the heat chamber 1, a pair of holding plates 3 and 4 fixed to both ends of the coupling member 2 to sandwich the heat chamber 1 from both sides in the axial direction and an attaching plate 5 fixed to an outer surface of the holding plate 3 on one end side.
- the cylindrical burner is attached in a body of a machine such as a water heater or a heater at the attaching plate 5.
- the respective holding plates 3 and 4 are set in abutment against respective end faces of the heat chamber 1 via respective end face packings 6 overlapping the respective end faces.
- the heat chamber 1 is constituted by combining plural (e.g., six) strip- shaped combustion plates 7 made of ceramics, which have a plurality of burner ports 7a, in a cylindrical shape. Side packings 8 along side edges of the combustion plates 7 are provided among the respective combustion plates 7, 7. Note that the burner ports 7a are not formed in parts closer to ends of the combustion plates 7. However, dummy burner ports 7b of a blank hole shape are formed in the parts closer to the ends of the combustion plates 7 due to a reason relating to formation such as uniformalization of a shrinking percentage at the time of formation of the combustion plates 7.
- a gas inlet 5a is opened in a central part of the attaching plate 5.
- the attaching plate 5 is fixed to an outer surface of the holding plate 3 on one end side, which is formed in an annular shape, by spot welding or the like such that the gas inlet 5a faces an inner peripheral space of the holding plate 3.
- the coupling member 2 is formed in a square cylindrical shape.
- the coupling member 2 is fixed to an inner surface in a peripheral edge of the gas inlet 5a of the attaching plate 5 at one end by spot welding or the like. Therefore, the holding plate 3 on one end side is fixed to one end of the coupling member 2 via the attaching plate 5.
- a plurality of through holes 2a are formed in a peripheral surface of the coupling member 2.
- a mixed gas of a fuel gas flowing in from the gas inlet 5a and a primary air is supplied into the heat chamber 1 via these through holes 2a and blows out from burner ports 7a of the respective combustion plates 7 to burn.
- the coupling member 2 functions as a distributing pipe for distributing the mixed gas into the heat chamber 1 uniformly.
- a cap 2b is fastened to the other end of the coupling member 2.
- a projected portion 2c which is fit into an inner periphery of the holding plate 4 on the other end side formed in an annular shape, is formed in this cap 2b.
- the coupling member 2 is inserted into the heat chamber 1 and the holding plate 3 on one end side is set in abutment against one end face of the heat chamber 1 via the end face packing 6.
- the holding plate 4 on the other end side is set in abutment against the other end face of the heat chamber 1 via the end face packing 6.
- the projected portion 2c is inserted into the inner periphery of the holding plate 4.
- the projected portion 2c is crushed inwardly in the axial direction. Consequently, the holding plate 4 is caulked and fixed to the coupling member 2 in a state in which the holding plate 4 is pressed inwardly in the axial direction.
- the heat chamber 1 is sandwiched firmly between both the holding plates 3 and 4.
- Cylindrical flange sections 3a and 4a bending inwardly in the axial direction are formed in outer peripheries of the respective holding plates 3 and 4.
- Sunken sections 7c sunken inwardly in a radial direction are formed in outer surfaces at the ends of the respective combustion plates 7.
- plural outer peripheral packing sections 6a overlapping the sunken sections 7c of the respective combustion plates 7 are projected to outer peripheries of the end face packings 6 at an interval in a peripheral direction.
- ring members 9 which consist of a C-shaped elastic ring cut out at one place in a periphery , are mounted on the outer surfaces at the ends on one end side and the other end side of the heat chamber 1 so as to engage with the sunken sections 7c of the combustion plates 7.
- the plural combustion plates 7 are bound by the ring members 9 in a cylindrical shape.
- the ring members 9 are formed of a spring material circular in section in this embodiment, the ring members 9 may be formed of a spring material square in section.
- the respective outer peripheral packing sections 6a are bent inwardly in the axial direction from base end sides by the flange sections 3a and 4a.
- the respective outer peripheral packing sections 6a are sandwiched between the sunken sections 7c of the respective combustion plates 7 and the inner surfaces of the flange sections 3a and 4a.
- an inner diameter of the flange sections 3a and 4a are set such that the outer peripheral packing sections 6a are sandwiched between the inner surfaces of the flange sections 3a and 4a and the sunken sections 7c while being compressed by a predetermined interference.
- combustion plates 7 are tightened inwardly in the radial direction by a compression reaction of the outer peripheral flange sections 6a.
- Side packings 8 among the respective combustion plates 7, 7 are compressed by this tightening force. Consequently, the side packings 8 are adapted to the combustion plates 7 and a sealing property among the respective combustion plates 7, 7 is secured.
- a length in the axial direction of the sunken sections 7c of the combustion plates 7 are set shorter than a length in the axial direction of the flange sections 3a and 4a. Even if the ring members 9 are pushed by the flange sections 3a and 4a to shift inwardly in the axial direction when the respective holding plates 3 and 4 are assembled, the ring members 9 are prevented to shift further by steps at inner ends in the axial direction of the sunken sections 7c of the combustion plates 7. Thus, the ring members 9 never slips out from the inner sides of the flange sections 3a and 4a. Therefore, the ring sections 9 are held surely in parts adjacent to the outer peripheral packing sections 6a of the outer surface of the heat chamber 1 inwardly in the axial direction. The gaps between the sunken sections 7c of the combustion plates 7 and the inner surfaces of the flange sections 3a and 4a are closed by the ring members 9.
- the end face packings 6 and the side packings 8 are formed by a ceramic packing molded by impregnating a binder in a ceramic fiber.
- the binder gradually decomposes thermally and disappears as time elapses and thickness of the ceramic packing decreases (becomes thin).
- the outer peripheral packing sections 6a become thin, a tightening force of the combustion plates 7 decreases.
- the combustion plates 7 are bound by the ring members 9 in a cylindrical shape, the combustion plates 7 are prevented from shifting to the outside in the radial direction to cause gas to leak from the gaps among the combustion plates 7, 7.
- the respective combustion plates 7 are pushed inwardly in the radial direction by an elastic force of the ring members 9, which are constituted by elastic rings, to reduce the gaps among the combustion plates 7, 7 by an amount equivalent to the reduced thickness of the side packings 8.
- a diameter of the heat chamber 1 is also reduced by the amount equivalent to the reduced thickness of the side packings 8. Therefore, even if the side packings 8 become thin, a sealing property among the combustion plates 7, 7 is secured and gas is prevented from leaking surely.
- the ring members 9 may be exposed partially from the inner sides of the flange sections 3a and 4a as long as gaps at the inner ends in the axial direction of the flange sections 3a and 4a, which are opening ends of the gaps between the sunken sections 7c of the combustion plates 7 and the inner surfaces of the flange sections 3a and 4a, are closed to a degree enough for preventing the outer peripheral packing sections 6a from coming off.
- the side packings 8 are provided among the respective combustion plates 7, 7.
- the ring members 9 only have to simply bind the plural combustion plats 7 in a cylindrical shape.
- FIG. 5 shows such an embodiment.
- the ring member 9 is formed by a band having a matching section 9a for spot welding in one place in a periphery. This band (rig member) 9 is mounted on the outer sides of the respective ends of the heat chamber 1 so as to engage with the sunken sections 7c of the respective ends of the combustion plates 7 as in the embodiment described above to bind the plural combustion plates 7.
- a cutout 4c of a slit shape corresponding to the matching section 9a of the band 9 is formed in the flange section 4a of the holding plate 4.
- the matching section 9a is inserted in the cutout 4c.
- the gaps between the sunken sections 7c of the combustion plates 7 and the inner surface of the flange section 4a are also closed by the band 9 to prevent the outer peripheral packing sections 6a from coming off to fall from the gaps.
- the holding plate 3 on one end side is not shown.
- a cutout corresponding to a matching section of a band mounted on an outer surface at an end on one end side of the heat chamber 1 is also formed in the flange section 3a of the holding plate 3.
- the matching section 9a of the band 9 may be fixed by spot welding before or after a step of mounting the band 9 on the outer surface at the end of the heat chamber 1.
- the band described above may be used as the ring member 9-
- the plural outer peripheral packing sections 6a corresponding to the plural combustion plates 7 are projected to the outer peripheries of the end face packings 6.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion Of Fluid Fuel (AREA)
- Gas Burners (AREA)
Claims (3)
- Brûleur cylindrique, comprenant :une chambre de chauffage (1) constituée en combinant plusieurs plaques de combustion en forme de bande (7) qui ont une pluralité d'orifices de brûleur (7a), d'une forme cylindrique ;un élément de couplage (2) qui s'étend dans une direction axiale à l'intérieur de la chambre de chauffage (1) ; etune paire de plaques de retenue (3, 4) fixées aux deux extrémités de l'élément de couplage (2),la chambre de chauffage (1) étant prise en sandwich des deux côtés dans la direction axiale par les deux plaques de retenue (3, 4) en mettant les plaques de retenue respectives (3, 4) en butée contre des faces d'extrémité de la chambre de chauffage (1), où des sections de bride cylindriques (3a, 4a) courbées vers l'intérieur dans la direction axiale sont formées sur les périphéries extérieures des plaques de retenue respectives (3, 4),caractérisé en ce que :les plaques de retenue respectifs (3, 4) butent contre les faces d'extrémité de la chambre de chauffage (1) par des garnitures de face d'extrémité (5) recouvrant les faces d'extrémité respectives ;des sections de garniture périphériques extérieures (6a) recouvrant les surfaces extérieures aux extrémités des plaques de combustion respectives (7) s'étendent aux périphéries des garnitures de face d'extrémité respectives (6) de telle sorte que les sections de garniture périphériques extérieures (6a) sont compressées par une interférence prédéterminée et sont prises en sandwich entre les surfaces intérieures des sections de bride (3a, 4a) et les surfaces extérieures des plaques de combustion respectives (7) de celles-ci ; etdes éléments annulaires (9) qui relient la pluralité de plaques de combustion (7) en une forme cylindrique, sont montés dans des parties adjacentes aux sections de garniture périphériques extérieures (6a) sur la surface extérieure de la chambre de chauffage (1) vers l'intérieur dans la direction axiale, et les espaces, qui sont formés entre les surfaces extérieures aux extrémités des plaques de combustion respectives (7) et les surfaces intérieures des sections de bride (3a, 4a) des plaques de retenue respectives (3, 4), sont fermés par les éléments annulaires (9).
- Brûleur cylindrique selon la revendication 1, caractérisé en ce que des sections noyées (7c) noyées vers l'intérieur dans la direction radiale sont formées sur les surfaces extérieures des plaques de combustion respectives (7) de celles-ci, un diamètre intérieur des sections de bride (3a, 4a) des plaques de retenue respectives (3, 4) est réglé de façon que les sections de garniture périphériques extérieures (6a) sont compressées selon une interférence prédéterminée et sont prises en sandwich entre les surfaces intérieures des sections de bride (3a, 4a) et les sections noyées (7c), et les elements annulaires (9) sont montées pour venir en prise avec les sections noyées (7c).
- Brûleur cylindrique selon la revendication 1 ou 2, caractérisé en ce que la chambre de chauffage (1) est constituée en combinant la pluralité de plaques de combustion (7) en une forme cylindrique dans un état où les garnitures latérales (8) le long des bords latéraux des plaques de combustion respectives (7) sont réalisées parmi les plaques de combustion (7), les éléments annulaires (9) sont constitués par des anneaux élastiques qui serrent élastiquement la pluralité de plaques de combustion (7) vers l'intérieur dans la direction radiale.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004096337A JP3996139B2 (ja) | 2004-03-29 | 2004-03-29 | 筒状バーナ |
JP2004096337 | 2004-03-29 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1582810A2 EP1582810A2 (fr) | 2005-10-05 |
EP1582810A3 EP1582810A3 (fr) | 2011-12-07 |
EP1582810B1 true EP1582810B1 (fr) | 2013-07-24 |
Family
ID=34879924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20050251921 Expired - Fee Related EP1582810B1 (fr) | 2004-03-29 | 2005-03-29 | Brûleur cylindrique |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1582810B1 (fr) |
JP (1) | JP3996139B2 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1840461A1 (fr) * | 2006-03-29 | 2007-10-03 | Aeromatix Limited | Capuchon pour brûleur à gaz |
US20120301836A1 (en) * | 2011-05-27 | 2012-11-29 | Kazuyuki Akagi | Plate type burner |
JP7442804B2 (ja) | 2020-05-26 | 2024-03-05 | 株式会社トヨトミ | 輻射式燃焼装置 |
GB202205838D0 (en) * | 2022-04-21 | 2022-06-08 | Kennedy John Francis | One piece multi-angled multi-height multi-base pistol burner |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62125208A (ja) * | 1985-11-26 | 1987-06-06 | Matsushita Electric Ind Co Ltd | 燃焼装置 |
FR2700604B1 (fr) * | 1993-01-15 | 1995-04-07 | Joseph Le Mer | Procédé de fabrication d'un élément de brûleur à gaz, élément ainsi obtenu, et brûleur en faisant utilisation. |
DE4418964A1 (de) * | 1994-05-31 | 1995-12-07 | Johannes Wilhelmus Graat | Hohlzylindrischer Brennerkopf und Verfahren zu seiner Herstellung |
DE19627103C1 (de) * | 1996-07-05 | 1997-07-24 | Schwank Gmbh | Brennerelement |
DE19813897A1 (de) * | 1998-03-28 | 1999-09-30 | Bosch Gmbh Robert | Segmentierte Isolierungen für Brenner mit porösen Medien |
-
2004
- 2004-03-29 JP JP2004096337A patent/JP3996139B2/ja not_active Expired - Fee Related
-
2005
- 2005-03-29 EP EP20050251921 patent/EP1582810B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1582810A2 (fr) | 2005-10-05 |
EP1582810A3 (fr) | 2011-12-07 |
JP3996139B2 (ja) | 2007-10-24 |
JP2005282922A (ja) | 2005-10-13 |
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