EP2083217A1 - Gasbrenner für einen Kessel - Google Patents

Gasbrenner für einen Kessel Download PDF

Info

Publication number
EP2083217A1
EP2083217A1 EP08425004A EP08425004A EP2083217A1 EP 2083217 A1 EP2083217 A1 EP 2083217A1 EP 08425004 A EP08425004 A EP 08425004A EP 08425004 A EP08425004 A EP 08425004A EP 2083217 A1 EP2083217 A1 EP 2083217A1
Authority
EP
European Patent Office
Prior art keywords
support plate
connection portion
gas burner
diffuser
distributor
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
EP08425004A
Other languages
English (en)
French (fr)
Other versions
EP2083217B1 (de
Inventor
Luca Barozzi
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.)
Beckett Thermal Solutions SRL
Original Assignee
Worgas Bruciatori SRL
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 Worgas Bruciatori SRL filed Critical Worgas Bruciatori SRL
Priority to EP20080425004 priority Critical patent/EP2083217B1/de
Publication of EP2083217A1 publication Critical patent/EP2083217A1/de
Application granted granted Critical
Publication of EP2083217B1 publication Critical patent/EP2083217B1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F23D14/10—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 elongated tubular burner head
    • 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
    • F23D14/10—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 elongated tubular burner head
    • F23D14/105—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 elongated tubular burner head with injector axis parallel to the burner head axis

Definitions

  • the present invention relates to a gas burner for a boiler.
  • Prior art gas boilers comprise a support plate which is connectable to a combustion chamber of the boiler in order to ensure the closing of the chamber and the positioning of the burner in relation to such combustion chamber.
  • the support plate defines an opening for the passage of a premixed gas-air mixture from an outer side to an inner side of the same plate.
  • a duct for supplying the burner with the premixed gas-air mixture can be connected at the passage opening.
  • the connection between the supply duct and the support plate is carried out by means of a plurality of screws and through the interposition of a gasket.
  • the burner further comprises a diffuser through which the fuel-air premixed gas which determines a flame pattern for the generation of heat is conveyed.
  • the diffuser comprises a wall provided with a plurality of small holes and having an inner side in flow connection with the supply duct, and an outer side on which the combustion takes place.
  • a distribution device can be further provided, typically a wall with a plurality of through holes, so configured as to distribute the gas-air mixture towards the diffuser wall in an essentially even manner or, however, in the desired manner.
  • the diffuser and the distributor are rigidly connected to the support plate, in particular on the inner side thereof, so that, once the burner has been assembled, the diffuser projects into the boiler combustion chamber, and the supply duct extends outside the latter.
  • connection flange For the connection of the diffuser and the distributor to the support plate, a so-called stainless steel connection flange is provided.
  • the connection flange is manufactured independently from the support plate, and it is connectable thereto by means of a plurality of screws and through the interposition of a special high-temperature resistant gasket.
  • the connection flange has a connection portion projecting into the combustion chamber, and which the diffuser and the distributor are locked to.
  • the heat which is generated by the combustion on the outer side of the diffuser wall is known to be conveyed, by the hot combustion gases, to a heat exchanger for the heating of a fluid, for example, water, which is then conveyed for an use, for example, a heating system of an industrial process, of living environments, or the like.
  • Prior art gas burners for boilers while being satisfactory as regards operation and reliability, suffer from the drawback of having a complex structure with a number of pieces, the manufacturing and assembly of which are very burdensome in terms of the time and costs involved.
  • the object of the present invention is to provide a gas burner for boiler having a simpler structure and which can be manufactured and assembled at a lower cost than the prior art burners.
  • a gas burner for boiler which can be supplied with a fuel and air mixture, comprising a support plate having:
  • connection flange the connection flange
  • the relative securing screws the gasket interposed between the connection flange and the support plate.
  • the use of the expensive stainless steel can be reduced for connecting the diffuser and the distributor to the support plate.
  • a gas burner for boilers i.e. a burner for the generation of heat, in general by means of the combustion of a fuel gas, or, in particular, of a pre-mixture of fuel gas and air is generally indicated with the reference numeral 1.
  • the burner 1 comprises a support plate 2 with an outer side 3 and an inner side 4 opposite the outer side 3 and intended to face a combustion chamber (not shown).
  • the support plate 2 is removably connectable to the combustion chamber through one or more first connection portions 5, preferably a plurality of through holes 6 obtained along a perimeter or outer edge 7 of the support plate 2 and intended to receive screws for the securing of the support plate 2 to the boiler combustion chamber.
  • the support plate 2 further defines a passage opening 8 for the passage of the fuel and air mixture 9 from the outer side 3 thereof to the inner side 4 thereof and, consequently, from the outer part of the combustion chamber to the inner part thereof.
  • a second connection portion 10 formed on the outer side 3 of the support plate 2 and so configured as to connect a supply duct 11 in flow communication with the passage opening 8 is provided.
  • the second connection portion 10 comprises a plurality of holes 12, which are preferably blind, internally threaded and distributed around the passage opening 8.
  • the holes 12 open onto the outer side 4 of the support plate 2, and are adapted to receive screws 13 for the securing of the supply duct 11.
  • An essentially planar annular surface 14 is formed on the outer side 3 of the support plate 2, and extends all around the passage opening 8. Such annular surface 14 forms a sealing surface which a corresponding sealing surface 15 can abut against (with or without the interposition of a gasket) which is formed in a connection flange 16 of the supply duct 11.
  • the connection flange 16 comprises a plurality of through holes 17 which are suitable to receive the screws 13 for the connection of the supply duct 11 to the support plate 2.
  • the aforementioned holes 12 are formed in the annular sealing surface 14, and the through holes 17 of the supply duct 11 flange 16 are also formed in the corresponding sealing surface 15.
  • the burner 1 further comprises a third connection portion 18, which is formed on the inner side 4 of the support plate 2 at the passage opening 8, and so configured as to allow a direct connection of a diffusion wall 19 and/or a distribution wall 20 to the support plate 2, so that such diffusion and/or distribution walls are arranged in flow communication with the passage opening 8.
  • the third connection portion 18 and the support plate 2 are formed as one piece, preferably by aluminium die-casting. This allows completely eliminating the connection flange, which is essential in prior art burners, and achieving a material and manufacturing and assembly cost saving.
  • the third connection portion 18 forms a distributor seat 21 which is essentially annular and so configured as to receive the distributor wall 20, as well as a separate diffuser seat 22 which is essentially annular and so configured as to receive the diffuser wall 19.
  • the third connection portion 18 only forms a distributor seat 21 in order to receive and lock the distribution wall 20, while the diffuser gets to be connected to the distributor wall.
  • the embodiment has been contemplated according to which the third connection portion 18 only forms a diffuser seat 22 in order to receive and lock the diffusion wall 19, while the distributor can be connected to the diffuser wall, or it can be even omitted.
  • the diffuser 19 is essentially cylindrical or frusto-conical
  • the distributor 20 is essentially cylindrical or frusto-conical and arranged in a co-axial manner inside the diffuser 19 (see Fig. 5 ).
  • the diffuser 22 and the distributor 21 seats can also be essentially circular and co-axial.
  • the third connection portion 18 projects from the support plate 2 and has an essentially tubular shape, with an inner surface 23 defining the passage opening 8, and an outer surface 24 constituting the diffuser seat 22 and/or the distributor seat 21.
  • such outer surface 24 comprises a first circumferential partial surface 25, adjacent to the support plate 2 plate-like body, and a second circumferential partial surface 26, arranged between a free end 27 of the third connection portion 18 and the first partial surface 25.
  • the first partial surface 25 has a diameter which is greater than the second partial surface 26 diameter, and it is divided from the latter by a circumferential step 28.
  • the direct connection between the diffuser wall 19 and the third connection portion 18 is preferably achievable through an interference coupling, locking by means of screws, or locking by means of permanent set by plastic deformation.
  • the direct connection between the distributor wall 20 and the third connection portion 18 is also preferably achievable through an interference coupling, locking by means of screws, or locking by means of permanent set by plastic deformation.
  • the proper positioning of the distributor wall 20 in relation to the diffuser wall 19 is advantageously ensured by an upper bottom 29 which is adapted to be connected to diffuser and distributor upper edges 30, 31 opposite the abovementioned bases which are received by the third connection portion 18.
  • the burner according to the present invention has a number of advantages. In particular, it has a reduced number of individual components and, in particular, stainless steel components, as well as an easily and quickly assemblable structure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP20080425004 2008-01-03 2008-01-03 Gasbrenner für einen Kessel Expired - Fee Related EP2083217B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20080425004 EP2083217B1 (de) 2008-01-03 2008-01-03 Gasbrenner für einen Kessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20080425004 EP2083217B1 (de) 2008-01-03 2008-01-03 Gasbrenner für einen Kessel

Publications (2)

Publication Number Publication Date
EP2083217A1 true EP2083217A1 (de) 2009-07-29
EP2083217B1 EP2083217B1 (de) 2013-05-01

Family

ID=39591791

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080425004 Expired - Fee Related EP2083217B1 (de) 2008-01-03 2008-01-03 Gasbrenner für einen Kessel

Country Status (1)

Country Link
EP (1) EP2083217B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900005504A1 (it) * 2019-04-10 2020-10-10 Beckett Thermal Solutions S R L Collettore per un bruciatore a gas
US11002445B2 (en) 2016-10-21 2021-05-11 Worgas Bruciatori S.R.L. Gas burner for boiler

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3704748A (en) 1970-02-11 1972-12-05 Ratheon Co Heat transfer structure
US5022352A (en) 1990-05-31 1991-06-11 Mor-Flo Industries, Inc. Burner for forced draft controlled mixture heating system using a closed combustion chamber
EP1431657A1 (de) * 2002-12-21 2004-06-23 Aeromatix Limited Gasbrenner
US20050274328A1 (en) 2000-01-10 2005-12-15 Baese David C Water heater with continuously variable air and fuel input

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3704748A (en) 1970-02-11 1972-12-05 Ratheon Co Heat transfer structure
US5022352A (en) 1990-05-31 1991-06-11 Mor-Flo Industries, Inc. Burner for forced draft controlled mixture heating system using a closed combustion chamber
US20050274328A1 (en) 2000-01-10 2005-12-15 Baese David C Water heater with continuously variable air and fuel input
EP1431657A1 (de) * 2002-12-21 2004-06-23 Aeromatix Limited Gasbrenner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11002445B2 (en) 2016-10-21 2021-05-11 Worgas Bruciatori S.R.L. Gas burner for boiler
IT201900005504A1 (it) * 2019-04-10 2020-10-10 Beckett Thermal Solutions S R L Collettore per un bruciatore a gas

Also Published As

Publication number Publication date
EP2083217B1 (de) 2013-05-01

Similar Documents

Publication Publication Date Title
CN102388269B (zh) 炉灶面旋流式燃烧器
US7665426B2 (en) Burner
US11460189B2 (en) Inward fired ultra low NOx insulating burner flange
KR101965676B1 (ko) 높은 주변부 안정성을 가진 버너
HRP20050524A2 (en) Gas burner with separate feeding of the flame crowns
US20100291495A1 (en) Burner, specifically a premix burner
US20190107287A1 (en) High output gas burner and range
EP2083217B1 (de) Gasbrenner für einen Kessel
CN110192066B (zh) 用于锅炉的气体燃烧器
CN107559825B (zh) 燃烧器及燃气灶具
US20130302741A1 (en) High-stability burners
KR20220022505A (ko) 가스 버너
US10520221B2 (en) Refractory for heating system
CN219473742U (zh) 灶具燃烧器及燃气灶
KR102573037B1 (ko) 가스조리기용 버너
ES2697724B2 (es) Conjunto de quemador de gas para un aparato de cocción de gas, y aparato de cocción de gas que incorpora dicho conjunto de quemador de gas
US7708555B2 (en) Gas-fired heating unit
KR100652881B1 (ko) 가스연소버너의 염공부 지지가이드 설치구조
JP2023166246A (ja) 給湯器
US20050016519A1 (en) Burner assembly
TWI421452B (zh) 圓筒式淡燃燒預混式燃燒器
KR20060017071A (ko) 가스연소버너의 염공부 고정커버 설치구조
KR20240039912A (ko) 고화력 다분지 헤드 버너
CN114183753A (zh) 炉头底座和上进风燃烧器
EP2685159B1 (de) Tragbarer Gasbrenner und Montageverfahren

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

17P Request for examination filed

Effective date: 20091126

AKX Designation fees paid

Designated state(s): DE GB IT NL

17Q First examination report despatched

Effective date: 20100312

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB IT NL

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602008024254

Country of ref document: DE

Effective date: 20130627

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20140204

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602008024254

Country of ref document: DE

Effective date: 20140204

REG Reference to a national code

Ref country code: NL

Ref legal event code: HC

Owner name: BECKETT THERMAL SOLUTIONS S.R.L.; IT

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CHANGE OF OWNER(S) NAME; FORMER OWNER NAME: WORGAS BRUCIATORI S.R.L.

Effective date: 20200918

Ref country code: DE

Ref legal event code: R081

Ref document number: 602008024254

Country of ref document: DE

Owner name: BECKETT THERMAL SOLUTIONS S.R.L., FORMIGINE, IT

Free format text: FORMER OWNER: WORGAS BRUCIATORI S.R.L., FORMIGINE, IT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20210129

Year of fee payment: 14

Ref country code: NL

Payment date: 20210122

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20210125

Year of fee payment: 14

Ref country code: DE

Payment date: 20210127

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602008024254

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20220201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20220103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220201

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220103

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220802

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220103