US20120244483A1 - Flame hole unit structure of a gas burner - Google Patents

Flame hole unit structure of a gas burner Download PDF

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Publication number
US20120244483A1
US20120244483A1 US13/509,039 US201013509039A US2012244483A1 US 20120244483 A1 US20120244483 A1 US 20120244483A1 US 201013509039 A US201013509039 A US 201013509039A US 2012244483 A1 US2012244483 A1 US 2012244483A1
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US
United States
Prior art keywords
plates
cut
flame
flame hole
gas
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.)
Abandoned
Application number
US13/509,039
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English (en)
Inventor
Tae-Sik Min
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.)
Kyungdong Navien Co Ltd
Original Assignee
Kyungdong Navien Co Ltd
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 Kyungdong Navien Co Ltd filed Critical Kyungdong Navien Co Ltd
Assigned to KYUNGDONG NAVIEN CO., LTD. reassignment KYUNGDONG NAVIEN CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MIN, TAE-SIK
Publication of US20120244483A1 publication Critical patent/US20120244483A1/en
Abandoned 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
    • F23D14/46—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
    • F23D14/583—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits
    • F23D14/586—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits formed by a set of sheets, strips, ribbons or the like
    • 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
    • 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
    • F23D2213/00—Burner manufacture specifications

Definitions

  • the present invention relates to a flame hole unit structure of a gas burner, and more particularly, to a flame hole unit structure of a gas burner in which a structure of a burner flame hole unit can be simplified and the unit can be easily assembled and manufactured by overlapping cut portions of a plurality of partially-cut plates to cross each other to form a mixed gas (gas and air) flow path and a flame hole through a gap between the cut portions.
  • a gas burner used in a combustion device such as a boiler or a water heater may be classified as a Bunsen burner or a pre-mixed burner according to a method of mixing a combustion gas with air.
  • the Bunsen burner is a burner that supplies a minimum of primary air required for combustion in a nozzle unit through which a gas is injected, and supplies excessive secondary air to a portion at which a flame is formed, realizing perfect combustion, and has an advantage of good combustion stability.
  • a flame length may be increased.
  • the pre-mixed burner combusts a pre-mixed gas in which a combustion gas and air are pre-mixed in a mixing chamber. Since the entire flame length can be reduced and a flame temperature can be lowered to reduce a load with respect to the same area, generation of pollutants such as carbon monoxide, nitrogen oxide, and so on, can be reduced to a minimum value.
  • Bunsen burner is mainly used in the conventional art, in recent times, a pre-mixed burner has mainly been used to reduce generation of pollutants and miniaturize a combustion chamber.
  • FIG. 1 is a perspective view showing an example of a conventional flame hole unit structure of a gas burner.
  • a conventional pre-mixed type gas burner 1 has a structure in which air supplied from a blower 30 and a combustion gas supplied through a gas supply pipe 40 are pre-mixed in a manifold 50 installed at a front surface of a burner body 20 to be supplied to a burner flame hole unit 10 installed over the burner body 20 .
  • the conventional burner flame hole unit 10 has a structure in which flame holes are punched in one plate having a flat or cylindrical shape, such a structure may cause imperfect combustion and backfire when a combustion surface of the burner is deformed or, in a severe case, damage to the flame holes occurs due to thermal stress.
  • a burner flame hole unit structure formed of a material such as a metal fiber mat woven of a metal fiber, a ceramic plate manufactured by sintering ceramic, or the like, has been used.
  • the metal fiber mat manufactured through weaving is used as a material for the flame hole unit, since an operator pulls and assembles the metal fiber mat upon assembly of the burner, irregular sizes of the flame holes in a local area or the entire area of the metal fiber mat may cause imperfect combustion and backfire, and flexibility in material characteristics of the metal fiber mat may cause sagging after installation, irregularly deforming the combustion surface and the flame holes.
  • the ceramic plate manufactured through the sintering method when condensation water generated from a heat exchanger upon upward combustion is dropped on the combustion surface, a surface of the flame hole unit may be damaged due to water to generate the flame holes having irregular shapes, increasing probability of generation of imperfect combustion.
  • a flame hole unit structure of a gas burner having a plurality of flame holes through which a mixed gas of a gas and air is injected to form a flame, characterized in that a plurality of partially cut plates overlap, the cutout portions of the adjacent plates overlap across each other, and a mixed gas (the gas and air) flow path and the flame holes are formed through gaps of the cutout portions.
  • the plurality of plates may include a plurality of overlapping sets of plates, each set including an inner plate having a partially cut upper or lower groove and outer plates overlapping at both sides of the inner plate and having partially cut upper and lower grooves corresponding to the groove formed in the inner plate to cross each other.
  • fixing plates may additionally overlap at both sides of the set of plates so that the plurality of flame holes are disposed at predetermined intervals.
  • the flame hole may have a flat rectangular cross-sectional shape.
  • a plurality of partially-cut plates overlap to form the burner flame hole unit so that a structure of the burner flame hole unit can be simplified and the structure can be easily manufactured, and thus, time and cost consumed for manufacture of the gas burner can be reduced.
  • a deformation level of the flame holes due to thermal stress can be reduced to increase stability of the flame and prevent imperfect combustion.
  • FIG. 1 is a perspective view showing an example of a conventional flame hole unit structure of a gas burner
  • FIG. 2 is a perspective view of a flame hole unit structure of a gas burner in accordance with an exemplary embodiment of the present invention
  • FIG. 3 is a partially exploded perspective view of FIG. 2 ;
  • FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2 ;
  • FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2 ;
  • FIG. 6 is a cross-sectional view taken along line C-C of FIG. 2 ;
  • FIG. 7 is a cross-sectional view taken along line D-D of FIG. 2 ;
  • FIG. 8 is a cross-sectional view taken along line E-E of FIG. 2 .
  • FIG. 2 is a perspective view of a flame hole unit structure of a gas burner in accordance with an exemplary embodiment of the present invention
  • FIG. 3 is a partially exploded perspective view of FIG. 2
  • FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2
  • FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2
  • FIG. 6 is a cross-sectional view taken along line C-C of FIG. 2
  • FIG. 7 is a cross-sectional view taken along line D-D of FIG. 2
  • FIG. 8 is a cross-sectional view taken along line E-E of FIG. 2 .
  • a flame hole unit 100 of a gas burner in accordance with the present invention has a structure in which a plurality of thin plates overlap and are assembled, and is characterized in that a path through which a mixed gas of a gas and air moves is formed inside the overlapping plates to be in communication with upper flame holes.
  • a burner flame hole unit 100 in accordance with an exemplary embodiment of the present invention includes inner plates 110 ( 111 , 112 and 113 ) in which a plurality of grooves 111 a having partially cut upper portions are formed at predetermined intervals, and outer plates 120 ( 121 , 122 , 123 , 124 , 125 and 126 ) in which a plurality of grooves 121 a and 122 a having partially cut lower portions are formed at predetermined intervals to be vertically symmetrical to the grooves 111 a formed in the inner plates 110 , and overlap and are coupled to both surfaces of the inner plates 110 .
  • the grooves 111 a, 121 a and 122 a are cut in substantially a “C” shape to be opened upward or downward so that, in a state in which the inner plates 110 and the outer plates 120 overlap, the grooves 111 a formed in the inner plates 110 are in partial communication with the grooves 121 a and 122 a formed in the outer plates 120 to form a flow path of the mixed gas.
  • the inner plate 111 and the outer plates 121 and 122 disposed at both sides of the inner plate 111 to overlap configure a set of plates, and sets of plates overlap to be repeatedly disposed in a multi-stage.
  • solid fixing plates 130 ( 131 , 132 , 133 and 134 ) overlap and are coupled between the sets of plates.
  • the fixing plates 130 perform a function of forming gaps between flame holes 160 ( 161 , 162 and 163 ) when the plates have different thicknesses, in addition to a function of forming the flow path of the mixed gas.
  • mixed gas inlet ports 140 ( 141 , 142 , 143 , 144 , 145 and 146 ) are formed at a lower side of the burner flame hole unit 100 by gaps of the grooves 121 a and 122 a of the outer plates 120 between the fixing plates 130 and the inner plates 110 .
  • the mixed gas introduced into the mixed gas inlet ports 140 is conveyed upward to be gathered in inner spaces 151 , 152 and 153 defined by the gaps of the grooves 111 a of the inner plates 110 and the grooves 121 a and 122 a of the outer plates 120 between the fixing plates 130 .
  • the mixed gas gathered in the inner spaces 151 , 152 and 153 is conveyed upward to be injected upward through flame holes 160 ( 161 , 162 and 163 ) formed by gaps of the grooves 111 a of the inner plates 110 between the outer plates 120 .
  • the mixed gas introduced through the two mixed gas inlet ports 141 and 142 is injected through the one flame hole 161 and a cross-sectional area of the flame hole 161 is smaller than that of the inner space 151 , the mixed gas can be rapidly injected through the flame hole 161 .
  • the grooves 111 a formed in the inner plates 110 are opened upward and the grooves 121 a and 122 a formed in the outer plates 120 are opened downward
  • the grooves 111 a formed in the inner plates 110 and the grooves 121 a and 122 a formed in the outer plates 120 may be opened downward and upward, respectively, in different directions. According to such a configuration, the mixed gas introduced into the one mixed gas inlet port is divided into the two flame holes to be injected.
  • reference numerals 141 a to 146 c designate mixed gas inlet ports formed in a lateral direction
  • reference numerals 151 a to 153 c designate inner spaces formed in the lateral direction
  • reference numerals 161 a to 163 c designate flame hole units formed in the lateral direction.
  • the plurality of plates overlap to form the path of the mixed gas to be in communication with the upper flame holes, deformation of the flame holes due to thermal stress can be minimized.
  • the embodiment has a configuration in which the three sets of plates overlap, the number of sets of plates may be differently configured in consideration of a maximum output amount of the gas burner.
US13/509,039 2009-12-11 2010-11-11 Flame hole unit structure of a gas burner Abandoned US20120244483A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020090122992A KR101216815B1 (ko) 2009-12-11 2009-12-11 가스 버너의 염공부 구조
KR10-2009-0122992 2009-12-11
PCT/KR2010/007964 WO2011071248A2 (ko) 2009-12-11 2010-11-11 가스 버너의 염공부 구조

Publications (1)

Publication Number Publication Date
US20120244483A1 true US20120244483A1 (en) 2012-09-27

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ID=44146010

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/509,039 Abandoned US20120244483A1 (en) 2009-12-11 2010-11-11 Flame hole unit structure of a gas burner

Country Status (9)

Country Link
US (1) US20120244483A1 (ko)
EP (1) EP2511608A2 (ko)
JP (1) JP2013508672A (ko)
KR (1) KR101216815B1 (ko)
CN (1) CN102639938B (ko)
AU (1) AU2010328929B2 (ko)
CA (1) CA2780834A1 (ko)
EA (1) EA201290484A1 (ko)
WO (1) WO2011071248A2 (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160363316A1 (en) * 2014-02-25 2016-12-15 Kyungdong Navien Co., Ltd. Burner provided with flame hole member having air holes
US20170314779A1 (en) * 2014-11-13 2017-11-02 A. O. Smith Corporation Gas premix burner and gas water heater

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101265515B1 (ko) * 2012-02-28 2013-05-21 주식회사 경동나비엔 조합형 염공부 및 그 조합형 염공부를 갖는 예혼합 가스 연소 버너
KR20130101670A (ko) * 2012-02-28 2013-09-16 주식회사 경동나비엔 제2차공기를 제공하는 조합형 염공부 및 그 조합형 염공부를 갖는 예혼합 가스 연소 버너
WO2015196504A1 (zh) * 2014-06-27 2015-12-30 艾欧史密斯(中国)热水器有限公司 燃气预混燃烧器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5224855A (en) * 1988-02-27 1993-07-06 Osaka Gas Co., Ltd. Gas burner
JPH07103421A (ja) * 1993-09-30 1995-04-18 Noritz Corp 燃焼装置
JP3132265B2 (ja) * 1993-09-30 2001-02-05 株式会社ノーリツ 燃焼装置
JP2004271064A (ja) * 2003-03-10 2004-09-30 Kyungdong Boiler Co Ltd ガス給湯器のブンゼンガスバーナー

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS593644B2 (ja) * 1974-11-08 1984-01-25 株式会社東芝 強制送風式燃焼装置
JPH02115627U (ko) * 1989-02-23 1990-09-17
JPH04184006A (ja) * 1990-11-14 1992-07-01 Matsushita Electric Ind Co Ltd 燃焼装置
JP3109353B2 (ja) * 1993-10-29 2000-11-13 株式会社ノーリツ 燃焼装置
JP3109361B2 (ja) * 1993-11-30 2000-11-13 株式会社ノーリツ 燃焼装置
JPH07318019A (ja) * 1994-05-27 1995-12-08 Osaka Gas Co Ltd バーナ
JP3526354B2 (ja) * 1995-10-16 2004-05-10 三洋電機株式会社 低ＮＯｘガス燃焼装置
KR0178309B1 (ko) * 1995-12-01 1999-03-20 노재훈 가스보일러의 금속판 적층버너
JP3177595B2 (ja) * 1998-03-09 2001-06-18 東京瓦斯株式会社 燃焼装置
KR20030021915A (ko) * 2001-09-10 2003-03-15 주식회사 경동보일러 가스 급탕기의 분젠가스버너
KR100495505B1 (ko) * 2002-10-22 2005-06-14 주식회사 경동보일러 다단제어를 구현하는 가스연소 버너
CN102221205A (zh) * 2010-04-13 2011-10-19 樱花卫厨（中国）股份有限公司 燃气热水器用燃烧器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5224855A (en) * 1988-02-27 1993-07-06 Osaka Gas Co., Ltd. Gas burner
JPH07103421A (ja) * 1993-09-30 1995-04-18 Noritz Corp 燃焼装置
JP3132265B2 (ja) * 1993-09-30 2001-02-05 株式会社ノーリツ 燃焼装置
JP2004271064A (ja) * 2003-03-10 2004-09-30 Kyungdong Boiler Co Ltd ガス給湯器のブンゼンガスバーナー

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160363316A1 (en) * 2014-02-25 2016-12-15 Kyungdong Navien Co., Ltd. Burner provided with flame hole member having air holes
US10151478B2 (en) * 2014-02-25 2018-12-11 Kyungdong Navien Co., Ltd. Burner provided with flame hole member having air holes
US20170314779A1 (en) * 2014-11-13 2017-11-02 A. O. Smith Corporation Gas premix burner and gas water heater
US10215403B2 (en) * 2014-11-13 2019-02-26 A. O. Smith Corporation Gas premix burner and gas water heater

Also Published As

Publication number Publication date
EP2511608A2 (en) 2012-10-17
CN102639938A (zh) 2012-08-15
AU2010328929A1 (en) 2012-05-31
JP2013508672A (ja) 2013-03-07
KR20110066372A (ko) 2011-06-17
CN102639938B (zh) 2014-09-10
KR101216815B1 (ko) 2012-12-28
AU2010328929B2 (en) 2013-03-07
CA2780834A1 (en) 2011-06-16
WO2011071248A2 (ko) 2011-06-16
EA201290484A1 (ru) 2012-11-30
WO2011071248A3 (ko) 2011-08-04

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AS Assignment

Owner name: KYUNGDONG NAVIEN CO., LTD., KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MIN, TAE-SIK;REEL/FRAME:028436/0265

Effective date: 20120508

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION