JPH0445727B2 - - Google Patents
Info
- Publication number
- JPH0445727B2 JPH0445727B2 JP63130982A JP13098288A JPH0445727B2 JP H0445727 B2 JPH0445727 B2 JP H0445727B2 JP 63130982 A JP63130982 A JP 63130982A JP 13098288 A JP13098288 A JP 13098288A JP H0445727 B2 JPH0445727 B2 JP H0445727B2
- Authority
- JP
- Japan
- Prior art keywords
- members
- perforated
- spherical
- combustion
- flame
- 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.)
- Expired - Lifetime
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
- F23D14/46—Details
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/74—Preventing flame lift-off
-
- 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
- F23D2900/14582—Special features of gas burners with outlets consisting of layers of spherical particles
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
この発明は、あらかじめ燃焼ガスと空気又は酸
素を適当な割合に混合して燃焼領域に供給する方
式の予混合式ガスバーナにおいて、混合室内部へ
焔が引火することなく安定した燃焼を行うことが
できるようにした新規な燃焼保焔板である。Detailed Description of the Invention [Field of Application of the Invention] The present invention provides a premixing gas burner in which combustion gas and air or oxygen are mixed in an appropriate ratio and supplied to a combustion region. This is a new flame retention plate that allows stable combustion without igniting.
従来の予混合式ガスバーナにおいては、上記の
燃焼保焔板や付属部品が高温（通常800〜1000℃
以上）にさらされることに関して、これを耐熱セ
ラミツクで作る必要があつた為、以下の様な実用
上の欠点が認められている。
In conventional premix gas burners, the above-mentioned flame retaining plate and attached parts are exposed to high temperatures (usually 800 to 1000℃).
Regarding exposure to the above), since it was necessary to make it from heat-resistant ceramic, the following practical drawbacks have been recognized.
(1) 金属に比べ材質がもろくて安定性がないの
で、大きな寸法のものが作り難く、また燃焼面
を下向きとした構造のものが作れない。(1) The material is more brittle and less stable than metal, so it is difficult to make large-sized ones, and it is impossible to make ones with a structure where the burning side faces downward.
(2) 素材を接着や焼結よつて所望の形状に形成す
る必要があり、コスト高になるだけではなく、
耐用年数が短い。(2) It is necessary to form the material into the desired shape by gluing or sintering, which not only increases costs but also
Short service life.
(3) 燃焼時に、燃焼面負荷を上げるべく通過ガス
量を多くすると、燃焼板は過熱せず、混合室内
部への引火も防げるが、焔がリフトし安定燃焼
ができない。(3) During combustion, increasing the amount of passing gas to increase the combustion surface load prevents the combustion plate from overheating and prevents ignition of the inside of the mixing chamber, but the flame lifts and stable combustion cannot be achieved.
この発明は、前述の諸問題に鑑み、セラミツク
素材自体の耐熱・断熱性を利用し、金属素材自体
の靭性を合せて利用することにより、ガスバーナ
用の燃焼保焔板を大型、下向き構造にする事を容
易ならしめるとともに、複雑・不規則なガス通過
孔を形成して保焔性を著しく高めるものである。
In view of the above-mentioned problems, this invention utilizes the heat resistance and insulation properties of the ceramic material itself, as well as the toughness of the metal material itself, to create a large-sized, downward-facing structure of the combustion flame retaining plate for gas burners. Not only does this make things easier, but it also forms complicated and irregular gas passage holes to significantly improve flame retention.
即ち、この発明は、互にい平行をなす２枚１組
の孔明き部材と、これら１組の孔明き部材の多数
の窓孔の間に挟持される耐熱性素材で形成した球
状部材とからなり、上記各窓孔は、内接円中心が
孔明き部材の垂直方向に一致するように形成し、
上記各球状部材は、各窓孔の内接円直径より小径
とし、この球状部材を各窓孔に嵌め込んだ状態で
各球状部材の頂部が、孔明き部材の表面と実質上
面一になるように設定したことを特徴とする予混
合式ガスバーナ用燃保焔板を特徴としている。 That is, this invention consists of a set of two parallel perforated members and a spherical member made of a heat-resistant material sandwiched between a large number of window holes in the set of perforated members. Each window hole is formed such that the center of the inscribed circle coincides with the vertical direction of the perforated member,
Each of the spherical members has a diameter smaller than the diameter of the inscribed circle of each window hole, and the top of each spherical member is substantially flush with the surface of the perforated member when the spherical member is fitted into each window hole. The flame protection plate for premixed gas burners is characterized by the following:
以下にこの発明を図面について説明する。 The invention will be explained below with reference to the drawings.
第１図及び第５図において、１０は、この発明
に係る燃焼保焔板であり、１１は、ハウジング、
１２は、その内部の混合室、１３は、燃料ガス流
入管、１４は、空気の流入ダクトである。 1 and 5, 10 is a combustion flame retaining plate according to the present invention, 11 is a housing,
12 is a mixing chamber therein, 13 is a fuel gas inflow pipe, and 14 is an air inflow duct.
上述の形態のバーナには、第２図〜第４図に明
らかなように、多数の球状部材１，１……と、こ
れを保持するための２枚を１組とする孔明き部材
２，２が用いられており、これらによつて１ユニ
ツトとしての燃焼保焔板１０が構成されている。 As is clear from FIGS. 2 to 4, the burner of the above-mentioned form includes a large number of spherical members 1, 1... and a pair of perforated members 2 for holding the spherical members 1. 2 are used, and these constitute the combustion flame retaining plate 10 as one unit.
このような燃焼保焔板においては、流入管１
３、ダクト１４から適量流入した燃料ガス及び空
気が混合室１２で混合し、前方の燃焼保焔板１０
を通過した混合ガス（予混合気）がその上部で完
全燃焼することになるが、更に詳細に、当該燃焼
保焔板の構造並びに作用について説明する。 In such a combustion flame retaining plate, the inflow pipe 1
3. The appropriate amount of fuel gas and air that flowed in from the duct 14 are mixed in the mixing chamber 12, and the combustion flame retaining plate 10 in the front is mixed.
The mixed gas (premixture) that has passed through will be completely combusted in the upper part thereof.The structure and function of the combustion flame retaining plate will be explained in more detail.
第２図〜第４図の実施例における孔明き部材
２，２は、正方形形状の窓孔３を連続に多数有す
る目抜き金属板で、それぞれの窓孔３，３……の
間には、各１ケずつ挟まれた状態で球形のセラミ
ツク素材、即ち、球状部材１，１……が嵌め込ま
れている。これらの球状部材１，１……の直径Ｄ
は、孔明き部材２，２の正方形形状の窓孔３，３
……の一辺の長さＡより大で、孔ピツチＰより小
さくなつている。即ち、上記各球状部材１，１…
…は、各窓孔３，３……の内接円直径より小径と
し、この球状部材１，１……を、各窓孔３，３…
…に嵌め込んだ状態で、各球状部材１，１……の
頂部が孔明き部材２，２の表面と実質上面一にな
るように設定してある。 The perforated members 2, 2 in the embodiment shown in FIGS. 2 to 4 are perforated metal plates having a large number of square-shaped window holes 3 in series, and between each of the window holes 3, 3... Spherical ceramic materials, ie, spherical members 1, 1, . The diameter D of these spherical members 1, 1...
are square-shaped window holes 3, 3 of the perforated members 2, 2.
...It is larger than the length of one side A and smaller than the hole pitch P. That is, each of the above-mentioned spherical members 1, 1...
... has a smaller diameter than the inscribed circle diameter of each window hole 3, 3..., and these spherical members 1, 1... are connected to each window hole 3, 3...
The tops of the spherical members 1, 1, . . . are set to be substantially flush with the surfaces of the perforated members 2, 2 when the spherical members 1, 1, . . . are fitted into the holes.
上記の孔明き部材２，２は、鉄、ステンレス
鋼、その他の金属材料で形成されていた、外制に
てその間隔を保持するように固定されている。そ
して、この状態において、各孔明き部材２，２の
各窓孔３，３……は、対応するもの同志の内接円
中心が孔明き部材２，２の垂直方向に一致する。 The above-mentioned perforated members 2, 2 are fixed so as to maintain the distance between them by a circumference made of iron, stainless steel, or other metal material. In this state, the centers of the inscribed circles of the corresponding window holes 3, 3, . . . of the perforated members 2, 2 coincide with the vertical direction of the perforated members 2, 2.
このように、２枚の孔明き部材の窓孔３，３…
…の間に球状部材１，１……が嵌め込れると、各
孔明き部材の窓孔３，３……の形状が正方形であ
るので、該球状部材１，１……の周りに多数の〓
間４，４……が生じる。この発明の燃焼保焔板１
０は、それらの〓間４，４……を通つて混合ガス
（予混合気）を通過させ、燃焼面側の孔明き部材
２の上部で燃焼させる構造のものである。 In this way, the window holes 3, 3... of the two perforated members...
When the spherical members 1, 1... are fitted between..., since the window holes 3, 3... of each perforated member are square in shape, a large number of holes are placed around the spherical members 1, 1... 〓
Intervals 4, 4... occur. Combustion flame retaining plate 1 of this invention
No. 0 has a structure in which a mixed gas (premixed gas) is passed through the gaps 4, 4, .
上記孔明き部材２，２上の各窓孔３，３……
は、所定のピツチＰで正方形の他、所望の多角形
状に設けることができる。図示のごとく、上下の
孔明き部材２，２で球状部材１，１……を挟み込
んだ状態においては、各球状部材１，１……と窓
孔３，３…との間の４つの〓間４，４……が混合
ガス流路として機能する。 Each window hole 3, 3 on the perforated member 2, 2...
can be provided in a desired polygonal shape in addition to a square with a predetermined pitch P. As shown in the figure, when the spherical members 1, 1... are sandwiched between the upper and lower perforated members 2, 2, there are four spaces between each spherical member 1, 1... and the window holes 3, 3... 4, 4... function as a mixed gas flow path.
ここで、上記燃焼保焔板１０に対する混合ガス
供給方向を図中下側から上側に向かうものとし、
上方の孔明き部材２表面側で燃焼するものとし
て、この燃焼保焔板１０の機能を説明する。ま
ず、第５図に示すように、球状部材１，１……の
上下に位置する窓孔３，３……において各窓孔
３，３……の４つの〓間４，４……から各孔明き
部材２，２間並びに外部に向けて流れる混合ガス
は、各球状部材１，１……の表面に対して略接線
状に流れる。従つて上記〓間４，４……から外部
に流出する混合ガスは、流れ方向が対向するた
め、燃焼時には火焔がリフトすることなく安定し
た保焔が可能となる。 Here, the mixed gas supply direction to the combustion flame retaining plate 10 is from the bottom to the top in the figure,
The function of this combustion flame retaining plate 10 will be explained assuming that combustion occurs on the surface side of the upper perforated member 2. First, as shown in Fig. 5, in the window holes 3, 3... located above and below the spherical members 1, 1..., each The mixed gas flowing between the perforated members 2, 2 and toward the outside flows approximately tangentially to the surface of each spherical member 1, 1.... Therefore, since the flow directions of the mixed gas flowing out from the gaps 4, 4, . . . are opposite to each other, stable flame maintenance is possible without lifting the flame during combustion.
更に、〓間４，４……から孔明き部材２，２間
に流入した混合気は、図示するように、孔明き部
材２，２内側間の短い距離で屈曲する流れとな
る。 Furthermore, the air-fuel mixture that has flowed between the perforated members 2, 2 from the gaps 4, 4, .
また、上記燃焼面側の孔明き部材２と混合室側
の孔明き部材２との間にセラミツク質の球状部材
１が位置することにより、それ等孔明き部材２，
２の熱伝達を阻害して、燃焼熱の混合室への伝達
が防止される。 Furthermore, by positioning the ceramic spherical member 1 between the perforated member 2 on the combustion surface side and the perforated member 2 on the mixing chamber side, the perforated members 2,
2, thereby preventing combustion heat from being transferred to the mixing chamber.
従つて、燃焼面側の孔明き部材２表面の火焔が
逆火したとしても、この孔明き部材２，２内側間
に消炎され、また、燃焼面側の孔明き部材２２が
過熱したとしても混合室へ引火するのが妨げられ
る。 Therefore, even if the flame on the surface of the perforated member 2 on the combustion side backfires, the flame will be extinguished between the perforated members 2 and 2, and even if the perforated member 22 on the combustion side becomes overheated, the flame will not be mixed. Prevents fire from entering the room.
この発明においては、燃焼側の孔明き部材より
吹き出る予混合気の方向が球状部材の上方に向け
て、夫々対向するため、これによる燃焼火焔が生
じてもリフト現象を生ることなく安定しして保焔
することができ、また、耐熱性の球状部材の頂部
と孔明き部材の表面とが実質上面一となるように
設定し、孔明き部材の表面位置を火炎温度の低い
位置に設定してあるため、保焔板の過熱（赤熱）
を有効に防止することができる。
In this invention, the direction of the premixture blown out from the perforated member on the combustion side is directed upwards from the spherical member and faces each other, so even if a combustion flame is generated due to this, the combustion flame is stabilized without causing a lift phenomenon. In addition, the top of the heat-resistant spherical member and the surface of the perforated member are set to be substantially flush with each other, and the surface position of the perforated member is set at a position where the flame temperature is low. Because of this, the flame retaining plate may overheat (red heat).
can be effectively prevented.
しかも、燃焼面側の孔明き部材と混合室側の孔
明き部材との間にセラミツク等の耐熱性球状部材
がある為、燃焼熱が混合ガス供給側（混合室）に
向かつて伝熱されることを断つと同時に、混合室
側より孔明き部材間を混合ガスが通過する場合も
矢印の如く混合ガス流が矩距離で屈曲する為に、
焔が混合室へ引火することを有効に防げる効果が
ある。 Moreover, since there is a heat-resistant spherical member such as ceramic between the perforated member on the combustion surface side and the perforated member on the mixing chamber side, combustion heat is transferred toward the mixed gas supply side (mixing chamber). At the same time, when the mixed gas passes between the perforated members from the mixing chamber side, the mixed gas flow bends over a rectangular distance as shown by the arrow.
This has the effect of effectively preventing flames from igniting the mixing chamber.
この他、この発明に係る予混合式ガスバーナ用
燃焼保焔板は、構造が簡単で、強度を高く維持す
ることができるため、大型の燃焼保焔板であつて
も容易に製作することが可能になり、更に上記の
球状部材が上記の各窓孔内で遊動可能であること
により自浄作用を示し、目詰り等に対する保守点
検の回数を減少して長期のわたつて安定した性能
を維持することができる。 In addition, the combustion flame retention plate for a premixed gas burner according to the present invention has a simple structure and can maintain high strength, so even a large combustion flame retention plate can be manufactured easily. Furthermore, since the spherical member can move freely within each window hole, it exhibits a self-cleaning effect, reducing the number of maintenance inspections for clogging, etc., and maintaining stable performance over a long period of time. Can be done.
第１図乃至第５図は、この発明に係る燃焼保焔
板の一実施例を示すもので、第１図は、この燃焼
保焔板を用いた混合式ガスバーナの一例を示す斜
視図、第２図は、一部を破断して示す斜視図、第
３図は、要部の拡大平面図、第４図は、第３図の
−線断面図、第５図は、第３図の−線断
面図である。
１……球状部材、２……孔明き部材、３……窓
孔。
1 to 5 show an embodiment of a combustion flame retention plate according to the present invention, and FIG. 1 is a perspective view showing an example of a mixed gas burner using this combustion flame retention plate. 2 is a partially cutaway perspective view, FIG. 3 is an enlarged plan view of the main part, FIG. 4 is a cross-sectional view taken along the - line in FIG. 3, and FIG. 5 is a - line sectional view in FIG. FIG. 1... Spherical member, 2... Perforated member, 3... Window hole.
Claims (1)
２と、これら１組の孔明き部材２，２の多数の窓
孔３，３……の間に挟持される耐熱性素材で形成
した球状部材１，１……とからなり、 上記各窓孔３，３……は、内接円中心が孔明き
部材２，２の垂直方向に一致するように形成し、 上記各球状部材１，１……は、各窓孔３，３…
…の内接円直径より小径とし、この球状部材１，
１……を各窓孔３，３……に嵌め込んだ状態で各
球状部材１，１……の頂部が、孔明き部材２，２
表面と実質上面一になるように設定したことを特
徴とする予混合式ガスバーナ用燃焼保焔板。[Claims] 1. A set of two perforated members 2 that are parallel to each other,
2, and spherical members 1, 1... formed of a heat-resistant material sandwiched between a large number of window holes 3, 3... of these one set of perforated members 2, 2, each of the above-mentioned window holes. 3, 3... are formed so that the center of the inscribed circle coincides with the perpendicular direction of the perforated members 2, 2, and each of the above-mentioned spherical members 1, 1... is formed such that each window hole 3, 3...
The diameter is smaller than the inscribed circle diameter of..., and this spherical member 1,
1... is fitted into each window hole 3, 3..., and the top of each spherical member 1, 1... is connected to the perforated member 2, 2.
A combustion flame retention plate for a premixed gas burner, characterized in that it is set to be substantially flush with the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13098288A JPH02272218A (en) | 1988-05-27 | 1988-05-27 | Flame stabilizing plate for premixing gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13098288A JPH02272218A (en) | 1988-05-27 | 1988-05-27 | Flame stabilizing plate for premixing gas burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02272218A JPH02272218A (en) | 1990-11-07 |
| JPH0445727B2 true JPH0445727B2 (en) | 1992-07-27 |
Family
ID=15047150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13098288A Granted JPH02272218A (en) | 1988-05-27 | 1988-05-27 | Flame stabilizing plate for premixing gas burner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02272218A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1251560B (en) * | 1991-09-06 | 1995-05-17 | Nuovopignone Ind Meccaniche Ef | PERFECTED BURNER, PARTICULARLY SUITABLE FOR WALL BOILERS |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS513473U (en) * | 1974-06-24 | 1976-01-12 |
-
1988
- 1988-05-27 JP JP13098288A patent/JPH02272218A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02272218A (en) | 1990-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2004144467A (en) | Premixed gas combustion burner having separable flame hole part | |
| KR100420002B1 (en) | premixed metal fiber burner | |
| JPH0445727B2 (en) | ||
| JPS6298110A (en) | High load combustion method and device thereof | |
| JP2937807B2 (en) | Premixed high load, low pollution household gas burner | |
| JPH01310217A (en) | Combustion plate | |
| US20050158682A1 (en) | Burner heads and burners | |
| JPH0248806B2 (en) | NENSHOSOCHI | |
| JPH0364766B2 (en) | ||
| JPS62155431A (en) | Surface combustion burner | |
| JPH0435689Y2 (en) | ||
| JPH0236851B2 (en) | ||
| CN113339797B (en) | Small flame cover and burner having the small flame cover | |
| JPH04155111A (en) | Thin film flame type burner using combustion plate | |
| JPS59112111A (en) | Premix combustor | |
| JPS62297615A (en) | combustion device | |
| JPH0116893Y2 (en) | ||
| JP2970965B2 (en) | Gas burner | |
| JPH1030804A (en) | Premixed flat flame type burner | |
| JPS58124108A (en) | Combustion device | |
| JPH0419288Y2 (en) | ||
| KR200141458Y1 (en) | Structure for mixing gas and the primary air | |
| JPH0434045B2 (en) | ||
| JPH04155112A (en) | Thin-film flame combustion equipment using flame-holding plates | |
| JPS63187008A (en) | burner |