EP1130315A2 - Brûleur atmosphérique à gaz - Google Patents

Brûleur atmosphérique à gaz Download PDF

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Publication number
EP1130315A2
EP1130315A2 EP01102645A EP01102645A EP1130315A2 EP 1130315 A2 EP1130315 A2 EP 1130315A2 EP 01102645 A EP01102645 A EP 01102645A EP 01102645 A EP01102645 A EP 01102645A EP 1130315 A2 EP1130315 A2 EP 1130315A2
Authority
EP
European Patent Office
Prior art keywords
burner
section
mixture
atmospheric gas
gas burner
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
EP01102645A
Other languages
German (de)
English (en)
Other versions
EP1130315B1 (fr
EP1130315A3 (fr
Inventor
Marcus Bienzle
Markus Rotert
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1130315A2 publication Critical patent/EP1130315A2/fr
Publication of EP1130315A3 publication Critical patent/EP1130315A3/fr
Application granted granted Critical
Publication of EP1130315B1 publication Critical patent/EP1130315B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F23D14/02—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
    • F23D14/08—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 axial outlets at the 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
    • F23D14/46—Details, e.g. noise reduction means

Definitions

  • the invention relates to an atmospheric gas burner according to the preamble of claim 1.
  • Such atmospheric gas burners also referred to as injector burners, are generally known and have found widespread use both for heating domestic water and for heating water.
  • an atmospheric gas burner is included several arranged in parallel next to each other Burner elements with a mixing body and one Burner plate with mixture outlet openings known.
  • the burner plate is essentially curved in a semi-cylindrical shape executed and as an attachable unit with the mixing body connected.
  • the mixing body has two mixing tubes each delta-shaped narrowing the flow cross-section Have constrictions that in the sheet metal elements formed mixing tubes are molded. In the sheet metal elements there are also openings in which cooling pipes for Cooling the burner elements are performed.
  • the object of the invention is to provide an atmospheric gas burner without water cooling, which has a high combustion stability and a low NO x emission with a modulation range greater than 1: 2.5.
  • the atmospheric gas burner according to the invention with the characterizing features of claim 1 has the advantage that a primary air ratio of 0.5 to 1.0 is achieved.
  • the measures according to the invention make it possible to achieve a reduction in the NO x exhaust gas values down to 20 mg / kWh without additional water cooling.
  • a homogeneous mixture of fuel gas and air is obtained through the geometry of the mixing tubes. Through an optimized distance between the burner elements and the gap formed in between is over the entire Modulation range of the gas burner sufficient Secondary air supply and complete combustion guaranteed.
  • the flow conditions of the secondary air also implement cooling of the burner elements, especially in the area of the burner plate or burner zone. At the same time, the thermal stress on the Material of the burner element less.
  • Figure 1 shows a view of the broad side of a Burner element
  • Figure 2 is a view of the narrow side of the Burner element in Figure 1
  • Figure 3 is a sectional view through the burner element in Figure 1 along the line III-III
  • Figure 4 is a partial section through two adjacent Burner elements
  • Figure 5 is a view of the broad side of a Burner element according to a second embodiment
  • Figure 6 is a view of the narrow side of the burner element in Figure 5
  • Figure 7 is a sectional view through the Burner element in Figure 5 along the line VII-VII.
  • Figure 1 shows a burner element 10 one not closer shown atmospheric gas burner.
  • the atmospheric gas burner consists of a number of Burner elements 10 arranged in parallel next to one another.
  • About the arrangement of a corresponding number of Burner elements 10 can have any burner output increase.
  • the burner element 10 has one of two bowl-shaped Sheet metal halves 11, 12 formed housing 14 and On the combustion chamber side, a ridge ledge Burner plate 16 with mixture outlet openings 18, in which Embodiment according to Figures 1, 2 and 3, the burner plate 16 is arched.
  • Each burner element 10 has two mixing tubes 20 (Injectors) each with an air inlet opening 21, a flow channel section 23 and a diffuser section 25 on.
  • the flow channel section 23 has at one point 35 the narrowest cross section of the mixing tube 20.
  • the Air inlet openings 21 are used to introduce Primary air, each air inlet opening 21 having a gas nozzle 27 is assigned.
  • the fuel gas is in via the gas nozzle 27 the mixing tube 20 injected.
  • the flow channel section widens from point 35 23 towards the diffuser section 25 slightly conical. To the Flow channel section 23 closes in Flow direction of the fuel gas-air mixture Diffuser section 25 on.
  • the diffuser sections 25 widen each symmetrically to one by the Center line of the mixing tubes 18 running level 28 in Direction of the broad side of the burner element 10 continuously in the form of a parabola-like extension 29.
  • the extension 29 of a mixing tube merges with the extension 29 of the adjacent mixing tube on one Digit 31, so that both parabola-like extensions 29 open into a common distribution chamber 30.
  • the Distribution chamber 30 is the burner plate 16 and Mixture outlet openings 18 upstream and extends essentially about the extension of the burner plate 16.
  • the diffuser sections 25 each have one according to FIG the cross section with respect to the narrow side of the Burner element 10 constricting constriction 32, which in Essentially symmetrical to one through the center line extending plane 33 is formed.
  • Left and right of the constriction 29 form two diffuser channels 40, whose flow cross-sections are larger than that Flow cross section of the constriction 29 at any Job. This ensures an even mixture distribution in the distribution chamber 30 over the entire extent of the Mixture outlet openings 18 achieved.
  • the area of the mixture outlet openings 18 and the flow conditions of the fuel gas-air mixture in the two mixing tubes 20 are coordinated with one another in such a way that the heat load at the mixture outlet openings 18 of the burner plate 16 is ⁇ 300 W / cm 2 .
  • the mixture outlet openings 18 and the mixing tubes 20 were dimensioned accordingly in order to achieve the low surface load or thermal load on the mixture outlet openings 18 of the burner plate 16, the area of the mixture outlet openings 18 corresponding approximately to 3-5 times the total cross-sectional area of the mixing tubes 20 at the narrowest point 35.
  • These geometric conditions have an influence on the flow rate of the fuel gas-air mixture in the mixing tubes 20, a higher flow rate of the fuel gas-air mixture meaning a higher surface load or thermal load.
  • the width B is approximately 1.5-2 times the height H. The design also enables a significantly lower overall height H compared to fully premixed gas burners
  • a section of two arranged side by side Burner elements 10 shows Figure 4. Between the Burner elements 10 is a gap 34 for the supply of Secondary air with a width X is formed, the Width X about 1/2 to 1/5 the depth Y of burner plate 16 is. Because of this dimensioning, the entire modulation range of the atmospheric gas burner achieved an adequate secondary air supply, whereby complete combustion is guaranteed. About the Secondary air supply also cools the Burner element 10, in particular in the area of Burner plate 16 instead.
  • FIG. 5 Another embodiment of a burner element 10 show Figures 5, 6 and 7, with the same elements are designated by the same reference numerals.
  • the Burner plate 16 is flat.
  • this Embodiment according to Figure 7 is the cross section in Area of extension 29 narrowing section of the Narrow side of the fuel assembly 10 is considered a narrowing channel 36 formed that is symmetrical to the plane running through the center line of the mixing tubes 20 33 is formed.
  • the narrowing channel 36 has a delta-shaped Expansion 38 on, which is symmetrical to that by the Centerline plane 28 is.
  • This one too Embodiment forms left and right of narrowing channel 36 from two diffuser channels 40, the Flow cross sections is larger than that Flow cross section of the narrowing channel 36 at one anywhere.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP20010102645 2000-03-04 2001-02-07 Brûleur atmosphérique à gaz Expired - Lifetime EP1130315B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000110762 DE10010762C2 (de) 2000-03-04 2000-03-04 Atmosphärischer Gasbrenner
DE10010762 2000-03-04

Publications (3)

Publication Number Publication Date
EP1130315A2 true EP1130315A2 (fr) 2001-09-05
EP1130315A3 EP1130315A3 (fr) 2001-09-19
EP1130315B1 EP1130315B1 (fr) 2005-11-02

Family

ID=7633619

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010102645 Expired - Lifetime EP1130315B1 (fr) 2000-03-04 2001-02-07 Brûleur atmosphérique à gaz

Country Status (4)

Country Link
EP (1) EP1130315B1 (fr)
CN (1) CN1311413A (fr)
DE (2) DE10010762C2 (fr)
ES (1) ES2252096T3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800005589A1 (it) * 2018-05-22 2019-11-22 Bruciatore modulare
EP3597999A1 (fr) * 2018-07-20 2020-01-22 Guangdong Vanward New Electric Co., Ltd. Chauffe-eau à gaz et brûleur associé
CN111156507A (zh) * 2019-12-23 2020-05-15 杨斌 一种燃气和空气全预混式火排燃烧器
EP3825607A1 (fr) * 2019-11-21 2021-05-26 Beckett Thermal Solutions S.R.L. Brûleur modulaire
IT202000008749A1 (it) * 2020-04-23 2021-10-23 Beckett Thermal Solutions S R L Bruciatore modulare perfezionato
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
IT202100023330A1 (it) * 2021-09-09 2023-03-09 Polidoro S P A Bruciatore a gas a piastre a bassa emissione di inquinanti

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10215688A1 (de) * 2002-04-10 2003-11-06 Schott Glas Flächiger Gasbrenner
CN104566372A (zh) * 2015-01-13 2015-04-29 天津城建大学 水冷式完全预混燃烧器
CN109404907A (zh) * 2017-08-16 2019-03-01 芜湖美的厨卫电器制造有限公司 燃烧器及燃气热水器
CN110578920A (zh) * 2018-06-08 2019-12-17 美的集团股份有限公司 燃烧器和燃气热水器
CN109695875A (zh) * 2019-01-02 2019-04-30 刘维 一种多引射管式火片
GB2584675B (en) * 2019-06-10 2021-11-17 Edwards Ltd Inlet assembly for an abatement apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0769656A1 (fr) 1995-10-19 1997-04-23 E.L.M. Leblanc Perfectionnement apportés à un brûleur de chauffe-eau, chauffe-bain, chaudière à gaz

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9112869U1 (de) * 1990-10-20 1991-12-19 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Brennerstab
DE4100247A1 (de) * 1991-01-07 1992-07-09 Ruhrgas Ag Gasbrenner und verfahren zu seinem betreiben
FR2719360B1 (fr) * 1994-04-29 1996-07-12 Chaffoteaux Et Maury Perfectionnements aux bruleurs à gaz.
FR2730793B1 (fr) * 1995-02-16 1997-04-30 Leblanc Sa E L M Perfectionnements apportes a un bruleur de chauffe-eau, chauffe-bain, chaudiere a gaz

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0769656A1 (fr) 1995-10-19 1997-04-23 E.L.M. Leblanc Perfectionnement apportés à un brûleur de chauffe-eau, chauffe-bain, chaudière à gaz

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
IT201800005589A1 (it) * 2018-05-22 2019-11-22 Bruciatore modulare
EP3597999A1 (fr) * 2018-07-20 2020-01-22 Guangdong Vanward New Electric Co., Ltd. Chauffe-eau à gaz et brûleur associé
EP3825607A1 (fr) * 2019-11-21 2021-05-26 Beckett Thermal Solutions S.R.L. Brûleur modulaire
CN111156507A (zh) * 2019-12-23 2020-05-15 杨斌 一种燃气和空气全预混式火排燃烧器
IT202000008749A1 (it) * 2020-04-23 2021-10-23 Beckett Thermal Solutions S R L Bruciatore modulare perfezionato
EP3901518A1 (fr) * 2020-04-23 2021-10-27 Beckett Thermal Solutions S.R.L. Brûleur modulaire amélioré
IT202100023330A1 (it) * 2021-09-09 2023-03-09 Polidoro S P A Bruciatore a gas a piastre a bassa emissione di inquinanti
WO2023037277A1 (fr) * 2021-09-09 2023-03-16 Polidoro S.P.A. Brûleur à gaz à plaques, à faible émission de polluants

Also Published As

Publication number Publication date
CN1311413A (zh) 2001-09-05
DE10010762C2 (de) 2002-03-28
ES2252096T3 (es) 2006-05-16
DE10010762A1 (de) 2001-09-20
DE50107868D1 (de) 2005-12-08
EP1130315B1 (fr) 2005-11-02
EP1130315A3 (fr) 2001-09-19

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