EP3303921A1 - Brûleur à gaz à plaques pour chaudière - Google Patents

Brûleur à gaz à plaques pour chaudière

Info

Publication number
EP3303921A1
EP3303921A1 EP16732758.4A EP16732758A EP3303921A1 EP 3303921 A1 EP3303921 A1 EP 3303921A1 EP 16732758 A EP16732758 A EP 16732758A EP 3303921 A1 EP3303921 A1 EP 3303921A1
Authority
EP
European Patent Office
Prior art keywords
plates
burner
gas
burner according
manifold
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
Application number
EP16732758.4A
Other languages
German (de)
English (en)
Other versions
EP3303921B1 (fr
Inventor
Stefano DALLA VECCHIA
Laura DALLA VECCHIA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Polidoro SpA
Original Assignee
Polidoro SpA
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 Polidoro SpA filed Critical Polidoro SpA
Priority to PL16732758T priority Critical patent/PL3303921T3/pl
Publication of EP3303921A1 publication Critical patent/EP3303921A1/fr
Application granted granted Critical
Publication of EP3303921B1 publication Critical patent/EP3303921B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/045—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with a plurality of burner bars assembled together, e.g. in a grid-like arrangement
    • 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
    • F23D14/48—Nozzles
    • F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • 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
    • F23D14/62—Mixing devices; Mixing tubes
    • F23D14/64—Mixing devices; Mixing tubes with injectors
    • 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
    • F23D14/78—Cooling burner parts
    • 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
    • F23D2900/14003—Special features of gas burners with more than one nozzle
    • 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
    • F23D2900/14641—Special features of gas burners with gas distribution manifolds or bars provided with a plurality of nozzles

Definitions

  • the subject matter of the present invention is a gas burner according to the preamble of the main claim.
  • Such preamble can be read in DE9203212U1.
  • a usual plate gas burner comprises a plurality of plate-like elements arranged in parallel to each other and wherein a gas is injected by nozzles screwed into a manifold located at a first end of the burner. Such gas reaches, via the plates, another end of the burner where a diffuser is located and where such gas generates a flame being "ignited" by an ignition element (for instance a piezoelectric one) present in correspondence with such diffuser .
  • an ignition element for instance a piezoelectric one
  • the plurality of plates is thus crossed by a fluid, typically water, duct, such duct being placed orthogonally to such plates.
  • a fluid typically water, duct
  • the latter are usually coupled with each other in a "packed” arrangement by means of one or several tie rods and by the above mentioned duct itself.
  • the manifold has a tubular shape, but generally its cross-section is polygonal, and it is fixed to the burner (or better, to its body defined by the plurality of coupled-together plates) by using specific square or L-shaped support elements which are secured to the sides of the burner body (by means of screws) at one hand, and to said extrusion (also by means of screws) at the other hand.
  • the latter screws are provided in correspondence with and outside the sides of such body.
  • a purpose of the present invention is mainly to offer a plate gas burner for boilers that can be obtained in a simpler way and at more reasonable costs.
  • figure 1 shows an exploded perspective view of a first embodiment of a burner according to the invention
  • figure 2 shows a perspective view of the burner of figure 1 once assembled
  • figure 3 shows a view similar to that of figure 1, but for a variant of the burner according to the invention
  • figure 4 shows a perspective view of the burner of figure 3 once assembled
  • figure 5 shows an exploded perspective view of a further variant of the burner according to the invention.
  • figure 6 shows a perspective view of the burner of figure 5 once assembled.
  • FIGS. 1 and 2 show a burner 1 having a body 2 defined by assembling a plurality of platelike elements or simply plates 3 arranged in a longitudinal plane P (only two shown in figure 1) parallel to each other.
  • a burner known by itself in the state of the art, presents a first end 5 in correspondence with which there is placed a gas manifold 6 and a second end 7 where there is placed a flame diffuser 8.
  • Every plate comprises internal ducts 9 and 10 opening in correspondence with the ends 5 and 7 of the burner body 2. Specifically, in correspondence with the end 5, every duct 9 and 10 presents a widened opening 13 in correspondence with which there is located a respective gas nozzle 15 associated with the manifold 6. In this way, the gas carried by the manifold in correspondence with every plate 3 can reach, via the ducts 9 and 10, the diffuser 8 where a flame is created thanks to the operation of an ignition element (not shown) present on a side of the diffuser.
  • the gas manifold 6 is defined by one tubular duct with no closing plug (or simply tube) which is folded and shaped in such a way as to assume a substantially U-shape and consequently presents two parallel arms 17 and 18 carrying the gas nozzles 15 spaced away from each other so as to exactly mate the widened opening 13 of the plates 3.
  • the latter preferably feature an outwardly countersunk shape to make it easier for the gas coming from its corresponding nozzle go in.
  • the arms 17 and 18 of the manifold 6 are connected to each other by a folded part 19, integral with such arms, whereas an end fitting 20 is present in correspondence with the free end of the arm 17; such fitting is suitable for being connected to a usual burner gas feeding.
  • the free end of the other arm 18 is closed by way of a known mechanical processing which allows to melt and simultaneously deform the tube so as to obtain a closing bottom without using additional elements.
  • the manifold 6 is bound to the body 2 by elements 25 secured to opposed sides 26 and 27 of such body. Every element 25 is shaped in such a way as to shape-couple with the plates 3 defining such sides (or extremal side plates, identified by 3F in the figures) . However, in general it presents end fins 30 folded towards the inside of the burner body 2, projecting from a body or a central portion 31 which presents holes 32 suitable for receiving fixing members 33 (screws, rivets, or the like) which bind the element 25 to the body 2.
  • a number of tabs 34 folded towards the inside of the body 2, and perforated in 35, project, suitable for co-operating with the gas nozzles 15 which inject the gas into the side plates 3F.
  • a pair of nozzles 15 which is formed, in a usual manner, of a faceted body 38 integral with the final section of the nozzle 39 itself (facing the opening 13) and screwed in a corresponding seat of the manifold 6, not shown. Every nozzle 15 suitable for co-operating with the plates 3F is screwed in the manifold 6 and inserted in the hole 35 of the tab 34 of the elements 25.
  • Such elements 25 are secured to the body 2 and coupled with further comblike members or L-shaped brackets 40, with elongated notches 41 in a flat portion 45 thereof, which brackets are located in correspondence with the plates 3F in order to further provide a support for the manifold and its binding to the burner body 2.
  • the brackets or comb-like members 40 are secured to the elements 25 by way of screws 47 and the notches contain the arms 17 and 18 of the manifold 6.
  • a further folded tube 43 crosses the body 2 in a position close to its second end 7: water flows through such tube and, the burner being in operation (flame present on the diffuser 8), is heated.
  • the tube 43 is through- inserted into the holes 44 of every plate 3.
  • a burner is obtained wherein the gas manifold is easily associated with the burner body 2, whilst having a tubular shape that is simpler and less expensive to obtain as compared with the extrusion defining the known manifolds. Furthermore, thanks to the invention an optimum centering of the nozzles 15 is achieved in correspondence with the openings 13 of the plates 3 (or 3F) as well as an optimum spacing between the nozzles 15 and said openings 13, thus guaranteeing an optimum combustion and consequently reduced emissions.
  • the plurality of plates 3 is held assembled by the tube 43 properly associated therewith.
  • the plates 3 are bound to each other by means of tie rods 50 introduced into coaxial holes 51 of said plates and secured to the end elements 25 by means of nails or the like 53.
  • these elements do not shape-couple with the side plates 3F, but rather their central portion 31 is completely flat.
  • the manifold 6 is a folded tube and is supported by the elements 25.
  • the elements 25 that support and bind the manifold 6 to the body 2 of the burner 1 cover the sides 26 and 27 of such body only partially.
  • the variant of figures 5 and 6 shows a case wherein such elements fully cover such sides and the comb-like members or bracket 40 are not L-shaped, but present a flat portion 45 only (along with the notches 41) secured to their corresponding elements.
  • the plurality or pack of plates 6 and the elements 25 are mechanically bound to each other thanks to the arrangement of the tube 43 therein.
  • the elements 25 too are provided with through holes 66 for making said tube pass through.
  • the duct is thus deformed to make it possible a force coupling with every plate, thus locking the pack of plates 3.
  • every nozzle 15 might be one-piece with the gas manifold 6 or be directly obtained therefrom by way of an appropriate drilling and a subsequent processing of the manifold itself, if any, which leads to the creation of projecting "stern sheets" on the manifold, each defining a nozzle. Therefore, also this variant and others are to be considered to fall in the scope of the following claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Abstract

La présente invention concerne un brûleur à gaz (1) à plaques (3, 35) pour chaudières comportant une pluralité de plaques (3, 35) agencées mutuellement parallèles et définissant un corps de brûleur (2), une rampe d'alimentation en gaz (6) étant située à une première extrémité (5) du corps de brûleur (2) et présentant une pluralité de buses (15) placées en correspondance avec des ouvertures (13) découpées dans des plaques individuelles correspondantes (3, 3F) à une seconde extrémité (7) opposée à la première extrémité (5), un diffuseur (8) étant disposé à l'emplacement où une flamme est générée grâce à la combustion du gaz en provenance les plaques (3, 3F), celles-ci étant traversées par un conduit d'eau (43). En correspondance avec des côtés opposés (26, 27) du corps de brûleur (2) des éléments de support (25) sont disposés aptes à une coopération directe avec des buses correspondantes (15) de la rampe d'alimentation en gaz (6) pour le support de celle-ci, une telle coopération reliant ladite rampe d'alimentation (6) au corps du brûleur (2).
EP16732758.4A 2015-06-04 2016-05-31 Brûleur à gaz à plaques pour chaudière Active EP3303921B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16732758T PL3303921T3 (pl) 2015-06-04 2016-05-31 Płytowy palnik gazowy dla kotła

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUB20151251 2015-06-04
PCT/IB2016/053189 WO2016193904A1 (fr) 2015-06-04 2016-05-31 Brûleur à gaz à plaques pour chaudière

Publications (2)

Publication Number Publication Date
EP3303921A1 true EP3303921A1 (fr) 2018-04-11
EP3303921B1 EP3303921B1 (fr) 2019-05-22

Family

ID=54150568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16732758.4A Active EP3303921B1 (fr) 2015-06-04 2016-05-31 Brûleur à gaz à plaques pour chaudière

Country Status (5)

Country Link
EP (1) EP3303921B1 (fr)
CN (1) CN107787429B (fr)
PL (1) PL3303921T3 (fr)
PT (1) PT3303921T (fr)
WO (1) WO2016193904A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3795899A4 (fr) * 2018-05-15 2021-05-05 Wuhu Midea Kitchen And Bath Appliances Mfg. Co, Ltd. Brûleur et chauffe-eau
EP3795922A4 (fr) * 2018-05-15 2022-04-27 Wuhu Midea Kitchen And Bath Appliances Mfg. Co, Ltd. Distributeur et chambre de combustion et chauffe-eau les comprenant

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT109825B (pt) * 2016-12-30 2024-05-08 Bosch Termotecnologia Sa Dispositivo queimador
CN106642121A (zh) * 2016-12-31 2017-05-10 珠海吉泰克燃气设备技术有限公司 一种低氮燃烧器喷嘴支架
EP3974718B1 (fr) 2020-09-28 2024-08-28 Polidoro S.p.A. Brûleur à gaz

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9203212U1 (de) * 1991-03-12 1992-04-23 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Brennerbeheiztes Gerät
IT226008Y1 (it) * 1991-12-06 1997-03-11 Aldo Polidoro Bruciatore di gas del tipo cosiddetto a rampette
DE19747481C1 (de) * 1997-10-28 1999-04-29 Bosch Gmbh Robert Gasbrenner mit einem Brennerkörper und einem Basisteil
US6138666A (en) * 1998-11-10 2000-10-31 Teledyne Technologies Incorporated Direct fired outdoor heater and heating method
DE10004159C2 (de) * 2000-02-01 2001-12-06 Bosch Gmbh Robert Düsenstock für Gasbrenner
ITTO20020850A1 (it) * 2002-10-01 2004-04-02 Powertech Ind Inc Camera di combustione a impulsi dotata di piastre multiple utilizzabile come caldaia per acqua calda
ES2362203T3 (es) * 2005-10-21 2011-06-29 The Frymaster Corporation, L.L.C. Conjunto de quemadores para freidora de grasa tipo tubo.
CN100498061C (zh) * 2007-05-24 2009-06-10 北京建筑工程学院 大功率燃气催化燃烧器
CN103597295A (zh) * 2011-01-27 2014-02-19 哈斯堡实业股份有限公司 减轻海拔效应的连续流水加热器
CN202598521U (zh) * 2012-05-03 2012-12-12 丁悠隼 一种聚能板式燃气燃烧器
CN104930509B (zh) * 2015-05-07 2017-06-30 江苏大学 一种内置挡板式微型燃烧器

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3795899A4 (fr) * 2018-05-15 2021-05-05 Wuhu Midea Kitchen And Bath Appliances Mfg. Co, Ltd. Brûleur et chauffe-eau
EP3795922A4 (fr) * 2018-05-15 2022-04-27 Wuhu Midea Kitchen And Bath Appliances Mfg. Co, Ltd. Distributeur et chambre de combustion et chauffe-eau les comprenant
US11371698B2 (en) 2018-05-15 2022-06-28 Wuhu Midea Kitchen And Bath Appliances Mfg. Co., Ltd. Burner and water heater

Also Published As

Publication number Publication date
PT3303921T (pt) 2019-09-06
CN107787429B (zh) 2019-09-27
CN107787429A (zh) 2018-03-09
EP3303921B1 (fr) 2019-05-22
WO2016193904A1 (fr) 2016-12-08
PL3303921T3 (pl) 2019-12-31

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