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JP5127399B2 - Sleeve-fire gas burner - Google Patents
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JP5127399B2 - Sleeve-fire gas burner - Google Patents

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JP5127399B2
JP5127399B2 JP2007277871A JP2007277871A JP5127399B2 JP 5127399 B2 JP5127399 B2 JP 5127399B2 JP 2007277871 A JP2007277871 A JP 2007277871A JP 2007277871 A JP2007277871 A JP 2007277871A JP 5127399 B2 JP5127399 B2 JP 5127399B2
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sleeve
flame hole
flame
burner
fire
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JP2009103406A (en
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勉 本間
英男 中村
和則 上山
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株式会社パロマ
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    • 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

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

Description

本発明は、燃料ガスと一次空気との混合ガスが供給され、上面に、主炎孔と、その主炎孔の左右両側に隣接する袖火炎孔とを形成した袖火式ガスバーナに関する。   The present invention relates to a sleeve-fired gas burner to which a mixed gas of a fuel gas and primary air is supplied and a main flame hole and sleeve flame holes adjacent to the left and right sides of the main flame hole are formed on the upper surface.

袖火式ガスバーナは、上面に、主炎孔と、その主炎孔に隣接する袖火炎孔とを形成してなり、噴出速度の速いガスによって主炎孔から形成される主炎を、袖火炎孔で形成される袖火で保炎することにより、主炎のリフトを防止して安定した燃焼を維持するようになっている。具体的には、特許文献１に開示のように、上面に多数のスリット状の主炎孔を形成したバーナ本体の両外側に、所定の隙間をおいて板状の袖火キャップを固定することで、主炎孔の両側に、一連の袖火炎孔を形成する構造がよく知られている。
また、このような袖火式ガスバーナは、湯沸器等のガス燃焼器具において、複数個を所定間隔をおいて平行に設置されると、二次空気の接触が悪くなって主炎が上方へ伸び、ＣＯ発生量が多くなる問題がある。そこで、特許文献２においては、袖火式ガスバーナ間の火移りを確実に行うと共に、隣接する袖火式ガスバーナ間への二次空気の供給を支障なく行うために、袖火キャップに、外向きに伸びる火移り板を互いに向かい合うように折曲形成し、バーナ本体の側板に、火移り板の上側に向けて混合ガスを噴出する噴出口を設けて、火移り板上に沿って火移り炎を外向きに形成する構成を採用している。 The sleeve flame type gas burner is formed with a main flame hole and a sleeve flame hole adjacent to the main flame hole on the upper surface. By holding the flame with a sleeve fire formed by holes, the main flame is prevented from being lifted to maintain stable combustion. Specifically, as disclosed in Patent Document 1, a plate-shaped sleeving cap is fixed to both outer sides of a burner body having a large number of slit-shaped main flame holes formed on the upper surface with a predetermined gap. A structure in which a series of sleeve flame holes are formed on both sides of the main flame hole is well known.
In addition, when such a sleeve-fired gas burner is installed in parallel at a predetermined interval in a gas combustion appliance such as a water heater, the contact of the secondary air becomes worse and the main flame moves upward. There is a problem that elongation and CO generation amount increase. Therefore, in Patent Document 2, in order to reliably transfer the fire between the sleeve-fire gas burners and to supply the secondary air between the adjacent sleeve-fire gas burners without trouble, The fire transfer plates extending in the direction of each other are bent so as to face each other, and the side plate of the burner body is provided with a jet outlet for jetting the mixed gas toward the upper side of the fire transfer plate, and the fire transfer flames along the fire transfer plate The structure which forms outward is adopted.

特開平８−２００６３３号公報Japanese Patent Laid-Open No. 8-200353 特開平８−７５１２４号公報JP-A-8-75124

しかし、上記従来の袖火式ガスバーナにおいては、火移り板で燃焼する火移り炎は、バーナ本体の混合ガスを利用したいわゆる主炎と同じであるため、燃焼性能が悪くなってＣＯ発生量の増加に繋がるおそれがあった。   However, in the conventional sleeve-fired gas burner, the fire transfer flame that burns on the fire transfer plate is the same as the so-called main flame that uses the mixed gas of the burner body, so the combustion performance deteriorates and the amount of CO generated is reduced. There was a risk of an increase.

そこで、本発明は、良好な燃焼性能を維持しつつ、バーナ間で隣接する主炎への二次空気を十分供給でき、火移り性能も確保できる袖火式ガスバーナを提供することを目的としたものである。   Therefore, the present invention has an object to provide a sleeve-fired gas burner that can sufficiently supply secondary air to the adjacent main flame between the burners while maintaining good combustion performance, and can also ensure the fire transfer performance. Is.

上記目的を達成するために、請求項１に記載の発明は、上端が開口するバーナ本体の上部に、開口の幅よりも長い複数のスリットを所定間隔をおいて並設した上板と、その上板の両サイドから下方へ折曲されてバーナ本体の上部を覆い、バーナ本体上部両側との間に夫々空間を形成する一対の外板とを備えた炎孔カバーを被着して、スリットの下方を、バーナ本体の両側板により、中央とその両外側の開口部とに夫々仕切らせて主炎孔と袖火炎孔とを夫々形成することで、袖火炎孔を所定間隔をおいて断続的に形成する一方、バーナ本体の両側板に、バーナ本体内を両側板と炎孔カバーの外板との間の空間に連通させる連通孔を設けて、任意の袖火炎孔となるスリットの端部をバーナ本体の側面上部まで延設し、袖火炎孔での袖火を外側への突出状態で形成可能としたことを特徴とするものである。 In order to achieve the above-mentioned object, the invention according to claim 1 is an upper plate in which a plurality of slits longer than the width of the opening are arranged at a predetermined interval on the upper part of the burner body whose upper end is open, Cover the upper part of the burner body by bending downward from both sides of the upper plate, and attach a flame hole cover with a pair of outer plates that form spaces between the upper and lower sides of the burner body, and slit The main flame hole and the sleeve flame hole are respectively formed by dividing the lower part of the burner body into the center and the openings on the outer sides thereof by the both side plates of the burner body. On the other hand, on both side plates of the burner body, there is provided a communication hole that connects the inside of the burner body to the space between the both side plates and the outer plate of the flame hole cover, so that the end of the slit that becomes an arbitrary sleeve flame hole parts and extend up to the upper side surface of the burner body, to the outside of the sleeve fire in sleeves flame holes It is characterized in that it has can be formed by out state.

請求項１に記載の発明によれば、良好な燃焼性能を維持しつつ、バーナ間で隣接する主炎への二次空気を十分供給でき、火移り性能も確保できる。
また、袖火の間から主炎へ二次空気が十分供給可能となり、ＣＯ発生量の低減に繋がる。
さらに、炎孔カバーを利用して主炎孔及び袖火炎孔が簡単に形成可能となると共に、主炎孔と袖火炎孔とが同じスリット内で近接して形成される合理的な構成となり、主炎のリフト防止により効果的となる。 According to the first aspect of the present invention, it is possible to sufficiently supply secondary air to the main flame adjacent between the burners while maintaining good combustion performance, and to ensure fire transfer performance.
Moreover, secondary air can be sufficiently supplied to the main flame from between the sleeves, leading to a reduction in the amount of CO generated.
Furthermore , the main flame hole and the sleeve flame hole can be easily formed using the flame hole cover, and the main flame hole and the sleeve flame hole are formed in close proximity within the same slit, Effective in preventing main flame lift.

以下、本発明の実施の形態を図面に基づいて説明する。
図１は、袖火式ガスバーナの一例を示す説明図で、下が側面、上が平面を夫々示し、図２は、図１のＡ−Ａ線の一部断面を示している。この袖火式ガスバーナ１は、一対の板金をプレス成型して形成される扁平なバーナ本体２と、そのバーナ本体２の上部に被着される炎孔カバー３とからなり、バーナ本体２の下部には、倒Ｕ字状の混合部４が形成され、その混合部４の端部には、図示しないガスノズルが対向するガス入口５が連設されている。また、バーナ本体２の上面には、全長に亘って開口６が形成され、バーナ本体２の左右の側板には、長手方向に沿って複数の連通孔７，７・・が等間隔で形成されている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an explanatory view showing an example of a sleeve-fire type gas burner, in which the lower side shows a side surface and the upper side shows a plane, and FIG. 2 shows a partial cross section taken along line AA in FIG. This sleeve fire type gas burner 1 is composed of a flat burner body 2 formed by press-molding a pair of sheet metals and a flame hole cover 3 attached to the upper part of the burner body 2. Is formed with an inverted U-shaped mixing portion 4, and a gas inlet 5 facing a gas nozzle (not shown) is continuously provided at the end of the mixing portion 4. Further, an opening 6 is formed over the entire length of the upper surface of the burner body 2, and a plurality of communication holes 7, 7... Are formed at equal intervals along the longitudinal direction on the left and right side plates of the burner body 2. ing.

一方、炎孔カバー３は、バーナ本体２の開口６に当接して開口６よりも短手方向の左右両側へ突出する上板８と、上板８の左右両端縁から下方へ垂下し、連通孔７よりも下方で内側へ折曲してバーナ本体２の上部両側との間に夫々空間を形成し、バーナ本体２の左右の側板にスポット溶接される一対の外板９，９とを有し、上板８に、短手方向の左右両端まで開口する左右一対のスリット１０，１０が、長手方向へ所定間隔で形成されている。これにより、炎孔カバー３の左右一対のスリット１０，１０は、バーナ本体２の左右の側板によって、側板の間で上板８の中央に開口する一対の主炎孔１１，１１と、上板８の両外側に開口する一対の袖火炎孔１２，１２とに仕切られることになる。   On the other hand, the flame hole cover 3 is in contact with the opening 6 of the burner body 2 and protrudes to the left and right sides in the shorter direction than the opening 6, and hangs down from both left and right edges of the upper plate 8 to communicate with each other. A pair of outer plates 9, 9 that are spot welded to the left and right side plates of the burner body 2 are formed by bending inwardly below the hole 7 to form spaces between the upper sides of the burner body 2. In the upper plate 8, a pair of left and right slits 10, 10 that open to both left and right ends in the short direction are formed at predetermined intervals in the longitudinal direction. As a result, the pair of left and right slits 10, 10 of the flame hole cover 3 is formed by the left and right side plates of the burner body 2, and the pair of main flame holes 11, 11 that open to the center of the upper plate 8 between the side plates. It is partitioned off into a pair of sleeve flame holes 12 and 12 which open to both outer sides.

そして、ここでは、バーナ本体２の側板はスリット１０，１０の外端寄りに位置して、一対の主炎孔１１，１１と一対の袖火炎孔１２，１２との炎孔負荷（燃焼量／炎孔面積）は、袖火炎孔１２の方が小さくなる設定となっている。
一方、バーナ本体２の長手方向の端部に位置するスリット（他のスリット１０と区別するため１０ａと表記する。）は、図３に示すように、両端が上板８を越えて外板９，９の上部に亘って延設されて、ここでの袖火炎孔１２ａ，１２ａを袖火式ガスバーナ１の両外側にも開口させている。 Here, the side plate of the burner body 2 is positioned near the outer ends of the slits 10 and 10, and the flame hole load (combustion amount / burning rate) between the pair of main flame holes 11 and 11 and the pair of sleeve flame holes 12 and 12. The flame hole area) is set to be smaller in the sleeve flame hole 12.
On the other hand, as shown in FIG. 3, a slit located at the end of the burner body 2 in the longitudinal direction (denoted as 10a for distinguishing from other slits 10) has both ends beyond the upper plate 8 and the outer plate 9 as shown in FIG. The sleeve flame holes 12a and 12a are also opened on both outer sides of the sleeve flame type gas burner 1.

以上の如く構成された袖火式ガスバーナ１においては、例えば図３に示すように、湯沸器等のガス燃焼器具に短手方向へ複数並べて設置される。そして、ガスノズルからガス入口５への燃料ガスの噴出により、一次空気が取り込まれ、混合部４で混合ガスとなって上昇し、開口６から炎孔カバー３の主炎孔１１，１１を介して上方へ噴出する。また、混合ガスの一部は、実線矢印で示すように、連通孔７，７からバーナ本体２の左右外側に噴出し、バーナ本体２と炎孔カバー３の外板９，９との間を上昇して袖火炎孔１２，１２から噴出する。そして、点火電極によって着火すると、図２に示すように、主炎孔１１，１１から火足の長い一対の主炎Ｆ１，Ｆ１が、袖火炎孔１２，１２から火足の短い袖火Ｆ２，Ｆ２が夫々形成されることになる。   In the sleeve-fire type gas burner 1 configured as described above, for example, as shown in FIG. 3, a plurality of gas burners such as a water heater are arranged side by side in the short direction. Then, the primary air is taken in by the injection of the fuel gas from the gas nozzle to the gas inlet 5 and rises as a mixed gas in the mixing unit 4, and passes through the main flame holes 11 and 11 of the flame hole cover 3 from the opening 6. Spouts upward. A part of the mixed gas is ejected from the communication holes 7 and 7 to the left and right outer sides of the burner body 2 as indicated by solid arrows, and between the burner body 2 and the outer plates 9 and 9 of the flame hole cover 3. It rises and ejects from the sleeve flame holes 12 and 12. Then, when ignited by the ignition electrode, as shown in FIG. 2, a pair of main flames F1 and F1 having a long fire foot from the main flame holes 11 and 11, and a sleeve fire F2 having a short fire foot from the sleeve flame holes 12 and 12, respectively. F2 is formed respectively.

ここで、主炎孔１１と袖火炎孔１２とは、スリット１０によって長手方向へ断続的に形成されているため、袖火Ｆ２が袖火炎孔１２ごとに分断され、点線矢印で示すように袖火Ｆ２間を通って二次空気が主炎Ｆ１までスムーズに導入される。よって、主炎Ｆ１が明瞭となり、上方へ伸びることがない。また、主炎孔１１と袖火炎孔１２とが一つのスリット１０内で隣接して一体的に形成されるため、主炎Ｆ１のリフトも効果的に防止される。   Here, since the main flame hole 11 and the sleeve flame hole 12 are intermittently formed in the longitudinal direction by the slit 10, the sleeve flame F2 is divided for each sleeve flame hole 12, and as shown by the dotted arrows, The secondary air is smoothly introduced to the main flame F1 through the fire F2. Therefore, the main flame F1 becomes clear and does not extend upward. Moreover, since the main flame hole 11 and the sleeve flame hole 12 are integrally formed adjacent to each other in one slit 10, the lift of the main flame F1 is also effectively prevented.

一方、バーナ本体２の端部に位置するスリット１０ａにおいても、主炎孔１１と袖火炎孔１２ａとで夫々主炎Ｆ１と袖火Ｆ２とが形成されるが、ここでは袖火炎孔１２ａの端部が外板９の上部にまで延設されているので、図３に示すように、袖火炎孔１２ａで形成される袖火Ｆ２は外側にも突出するように形成される。よって、この袖火炎孔１２ａの袖火Ｆ２から隣接する袖火式ガスバーナ１の袖火炎孔１２ａへスムーズに火移りが行われることになる。このように突出する袖火Ｆ２で火移りを行わせることで、袖火式ガスバーナ１，１間の間隔を確保することができ、袖火式ガスバーナ１，１間で隣り合う主炎Ｆ１，Ｆ１への二次空気の導入も支障なく行われる。   On the other hand, also in the slit 10a located at the end of the burner body 2, the main flame F11 and the sleeve flame 12a form the main flame F1 and the sleeve flame F2, respectively, but here the end of the sleeve flame hole 12a. Since the portion extends to the upper part of the outer plate 9, as shown in FIG. 3, the sleeve fire F2 formed by the sleeve flame holes 12a is formed so as to protrude outward. Therefore, the fire is smoothly transferred from the sleeve flame F2 of the sleeve flame hole 12a to the sleeve flame hole 12a of the adjacent sleeve flame type gas burner 1. In this way, by transferring the fire with the protruding sleeve fire F2, the space between the sleeve fire type gas burners 1 and 1 can be secured, and the adjacent main flames F1 and F1 between the sleeve fire type gas burners 1 and 1. The introduction of secondary air into the can be performed without any problem.

このように、上記形態の袖火式ガスバーナ１によれば、袖火炎孔１２ａの端部を側面上部まで延設して、袖火炎孔１２ａでの袖火Ｆ２を外側への突出状態で形成可能としたことで、良好な燃焼性能を維持しつつ、バーナ間で隣接する主炎Ｆ１への二次空気を十分供給でき、火移り性能も確保できる。
特に、袖火炎孔１２を所定間隔をおいて断続的に形成して、袖火炎孔１２ａの端部を側面上部まで延設しているので、袖火Ｆ２の間から主炎Ｆ１へ二次空気が十分供給可能となり、ＣＯ発生量の低減に繋がる。 Thus, according to the sleeve-fire type gas burner 1 of the above-described form, the end portion of the sleeve flame hole 12a can be extended to the upper part of the side surface, and the sleeve fire F2 in the sleeve flame hole 12a can be formed in a protruding state to the outside Thus, while maintaining good combustion performance, secondary air to the main flame F1 adjacent between the burners can be sufficiently supplied, and fire transfer performance can be secured.
In particular, the sleeve flame holes 12 are formed intermittently at predetermined intervals and the end portions of the sleeve flame holes 12a are extended to the upper part of the side surface, so that the secondary air flows from between the sleeve flames F2 to the main flame F1. Can be sufficiently supplied, leading to a reduction in the amount of CO generated.

また、上端が開口６となるバーナ本体２の上部に、開口６の幅よりも長い複数のスリット１０を所定間隔をおいて並設した上板８と、その上板８の両サイドから下方へ折曲されてバーナ本体２の上部を覆い、バーナ本体２の上部両側との間に夫々空間を形成する一対の外板９とを備えた炎孔カバー３を被着して、スリット１０の下方を、バーナ本体２の両側板により、中央とその両外側の開口部とに夫々仕切らせて主炎孔１１と袖火炎孔１２とを夫々形成する一方、バーナ本体２の両側板に、バーナ本体２内を両側板と炎孔カバー３の外板９との間の空間に連通させる連通孔７を設けて、スリット１０ａの端部をバーナ本体２の側面上部まで延設したことで、炎孔カバー３を利用して主炎孔１１及び袖火炎孔１２が簡単に形成可能となると共に、主炎孔１１と袖火炎孔１２とが同じスリット１０内で近接して形成される合理的な構成となり、主炎Ｆ１のリフト防止により効果的となる。   Also, an upper plate 8 in which a plurality of slits 10 longer than the width of the opening 6 are arranged in parallel at a predetermined interval on the upper portion of the burner body 2 whose upper end is the opening 6, and downward from both sides of the upper plate 8. A flame hole cover 3 that is bent and covers the upper part of the burner body 2 and that has a pair of outer plates 9 that form spaces between both sides of the upper part of the burner body 2 is attached to the bottom of the slit 10. Are divided into a central part and openings on both outer sides thereof by both side plates of the burner body 2 to form a main flame hole 11 and a sleeve flame hole 12, respectively. 2 is provided with a communication hole 7 for communicating with the space between both side plates and the outer plate 9 of the flame hole cover 3, and the end of the slit 10 a extends to the upper part of the side surface of the burner body 2. When the main flame hole 11 and the sleeve flame hole 12 can be easily formed using the cover 3, , Rational configuration and become the main fire hole 11 and the sleeve fire hole 12 is formed in close proximity in the same slits 10, the effective by the lift preventing main flame F1.

なお、上記形態では、スリットを上板の中央で分断して左右に一対形成しているが、左右方向で連続した一本のスリットとしてもよい。また、スリット等の透孔を仕切形成して主炎孔と袖火炎孔とを形成する構造に限らず、バーナ本体の上面に、主炎孔となる透孔とは別に袖火炎孔となる透孔を形成して、その透孔の端部を側面上部まで延設させても差し支えない。
さらに、炎孔カバーの採用に限らず、上面に主炎孔を形成したバーナ本体の両サイドに波板を取り付けて、波板とバーナ本体との間に断続的な袖火炎孔を形成し、その波板に縦方向のスリットを形成して袖火炎孔を側面上部まで延設することも可能である。
In the above embodiment, the slit is divided at the center of the upper plate to form a pair on the left and right, but may be a single slit continuous in the left-right direction. Further, the structure is not limited to the structure in which the main flame hole and the sleeve flame hole are formed by partitioning through holes such as slits. A hole may be formed so that the end of the through hole extends to the upper part of the side surface.
Furthermore, not only the adoption of a flame hole cover, attaching corrugated plates to both sides of the burner body with the main flame hole formed on the upper surface, forming intermittent sleeve flame holes between the corrugated sheet and the burner body, It is also possible to form a slit in the corrugated plate and extend the sleeve flame hole to the upper part of the side surface.

袖火式ガスバーナの説明図で、下が側面、上が平面を夫々示す。It is explanatory drawing of a sleeve-fire type gas burner, a lower side shows a side surface and the upper side shows a plane, respectively. Ａ−Ａ線の一部断面図である。It is a partial sectional view of an AA line. 複数の袖火式ガスバーナを並設した状態で示すＢ−Ｂ線の一部断面図である。It is a partial sectional view of a BB line shown in the state where a plurality of sleeve fire type gas burners were arranged in parallel.

符号の説明Explanation of symbols

１・・袖火式ガスバーナ、２・・バーナ本体、３・・炎孔カバー、６・・開口、７・・連通孔、８・・上板、９・・外板、１０，１０ａ・・スリット、１１・・主炎孔、１２，１２ａ・・袖火炎孔。   1 .... Sleeve-type gas burner, 2 .... Burner body, 3 .... Flame hole cover, 6 .... Opening, 7 .... Communication hole, 8 .... Upper plate, 9 .... Outer plate, 10,10a ... Slit 11, main flame hole, 12, 12a, sleeve flame hole.

Claims (1)

燃料ガスと一次空気との混合ガスが供給され、上面に、主炎孔と、その主炎孔の左右両側に隣接する袖火炎孔とを形成した袖火式ガスバーナであって、
上端が開口するバーナ本体の上部に、前記開口の幅よりも長い複数のスリットを所定間隔をおいて並設した上板と、その上板の両サイドから下方へ折曲されて前記バーナ本体の上部を覆い、前記バーナ本体上部両側との間に夫々空間を形成する一対の外板とを備えた炎孔カバーを被着して、前記スリットの下方を、前記バーナ本体の両側板により、中央とその両外側の開口部とに夫々仕切らせて前記主炎孔と袖火炎孔とを夫々形成することで、前記袖火炎孔を所定間隔をおいて断続的に形成する一方、前記バーナ本体の両側板に、前記バーナ本体内を前記両側板と炎孔カバーの外板との間の空間に連通させる連通孔を設けて、任意の前記袖火炎孔となる前記スリットの端部を前記バーナ本体の側面上部まで延設し、前記袖火炎孔での袖火を外側への突出状態で形成可能としたことを特徴とする袖火式ガスバーナ。 A mixed gas of fuel gas and primary air is supplied, and a sleeve flame type gas burner in which a main flame hole and sleeve flame holes adjacent to the left and right sides of the main flame hole are formed on the upper surface,
An upper plate in which a plurality of slits longer than the width of the opening are arranged in parallel at a predetermined interval on the upper portion of the burner body having an upper end opened, and the burner body is bent downward from both sides of the upper plate. A flame hole cover having a pair of outer plates covering the upper portion and forming spaces between the upper and lower sides of the burner main body is attached, and the lower side of the slit is centered by the both side plates of the burner main body. And forming the main flame hole and the sleeve flame hole, respectively, by dividing the sleeve flame hole at predetermined intervals, respectively. A communication hole for communicating the inside of the burner main body with the space between the both side plates and the outer plate of the flame hole cover is provided on both side plates, and the end portion of the slit which becomes an arbitrary sleeve flame hole is formed on the burner main body. It was extended to the upper side surface of the outer sleeve fire in the sleeve fire hole Sleeves is characterized in that a can be formed in a protruded state of the fire type gas burner.
JP2007277871A 2007-10-25 2007-10-25 Sleeve-fire gas burner Expired - Fee Related JP5127399B2 (en)

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CN112665185A (en) * 2019-10-15 2021-04-16 芜湖美的厨卫电器制造有限公司 Fire grate unit, combustor and water heater
CN112880199B (en) * 2019-11-29 2024-11-12 芜湖美的厨卫电器制造有限公司 Fire grille units, burners and gas equipment
CN111735207A (en) * 2020-06-17 2020-10-02 樱花卫厨（中国）股份有限公司 household gas water heater fire plate

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JPH0449462Y2 (en) * 1986-09-16 1992-11-20
JPS6361618U (en) * 1986-10-03 1988-04-23
JPH1163432A (en) * 1997-08-26 1999-03-05 Noritz Corp Light-burn combustion burner

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