JPH02110205A - Combustion apparatus - Google Patents

Abstract

PURPOSE:To make an apparatus as a whole smaller in structure without producing an unfavorable effect on the condition of combustion by disposing a plurality of burners in a vertical alignment with each burner sideways and each flame hole turning horizontal and by securing a distance of the combustion for bent flames. CONSTITUTION:When a fan 9 is in operation and secondary air is being ejected from retainers 3a... into a lower combustion chamber 1a, fuel gas ejected from gas-feeding nozzles 5a... from a gas manifold 5 into the throat 2b of each of burners 2... forms a fuel-air mixture in each burner 2 by mixing with primary air drawn in by the fuel gas. The fuel-air mixture is ejected sideways from each of flame holes 2a... into the lower combustion chamber 1a and burns. Secondary air ejected between flames thus produced and between the flames and the upper and lower sides of a burner case 1a3 mixes with the flames at their periphery and thus promotes the combustion. At an intermediate point each flame bends upward along the inner surface of an upper combustion chamber 1b. A distance of the combustion is secured for the flames in heating a heat exchanger 8.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明はファンを利用して強制燃焼を行う高負荷燃焼型
の家庭用燃焼装置、詳しくは燃焼室に向けて燃料ガスと
一次空気との混合気を噴出する複数のバーナを等間隔毎
に並設し、これら混合気と各バーナ間の二次空気通路か
ら噴出される二次空気とを燃焼せしめるものに関する。[Detailed Description of the Invention] <Industrial Application Field> The present invention is a high-load combustion type household combustion device that performs forced combustion using a fan, and more specifically, a combustion device for directing fuel gas and primary air toward a combustion chamber. This invention relates to a device in which a plurality of burners that eject an air-fuel mixture are arranged side by side at regular intervals, and the air-fuel mixture and secondary air ejected from a secondary air passage between the burners are combusted.

〈従来の技術〉 従来、この秒の燃焼装置として、例えば特開昭６０−２
５９８１２号公報に開示される如く、上下両面が開放し
た角筒状の燃焼室の下方に位置して複数のバーナを各炎
孔面が上方へ向くよう縦向きに並設し、これら各バーナ
の下方に夫々ガス供給ノズルが突設されるガスマニホー
ルドを横設して、これら各ガス供給ノズルから燃料ガス
を噴射させることにより、各バーナ内に一次空気を引き
込み燃料ガスと混合し混合気となって炎孔面から上方へ
噴射させて燃焼せしめ、この外炎に各バーナ間から上方
へ噴出される二次空気を強制的に混合させるものがある
。<Prior art> Conventionally, as this second combustion device, for example, Japanese Patent Application Laid-Open No. 60-2
As disclosed in Japanese Patent No. 59812, a plurality of burners are arranged vertically in parallel so that each flame hole face faces upward, located below a rectangular cylindrical combustion chamber with open upper and lower surfaces. By horizontally installing a gas manifold with gas supply nozzles protruding downwards, and injecting fuel gas from each gas supply nozzle, primary air is drawn into each burner and mixed with the fuel gas to form a mixture. Some burners are injected upward from the flame hole surface to cause combustion, and this outer flame is forcibly mixed with secondary air that is ejected upward from between the burners.

〈発明が解決しようとする問題点〉 しかし乍ら、このような従来の燃焼装置では各バーナが
一次空気と燃料ガスを混合させるため、上下方向へある
程度の良さが必要になると共に各炎孔面と熱交換器との
闇には上下方向へ火炎の燃焼距離が必要で、更にバーナ
とガス供給ノズルとの間にも上下方向へ一次空気引き込
み用の空間が必要になってしまい、その結実装置全体が
上下方向へ大型化するという問題がある。<Problems to be solved by the invention> However, in such a conventional combustion device, each burner mixes primary air and fuel gas, so a certain degree of vertical stability is required, and each flame hole surface The combustion distance of the flame in the vertical direction is required between the burner and the heat exchanger, and a space for drawing primary air in the vertical direction is also required between the burner and the gas supply nozzle. There is a problem in that the entire structure becomes larger in the vertical direction.

本発明は斯る従来事情に鑑み、火炎を曲げて燃焼距離を
確保しながらバーナより熱交換器までの上下寸法を短く
することを目的とする。In view of the conventional circumstances, the present invention aims to shorten the vertical dimension from the burner to the heat exchanger while ensuring a sufficient combustion distance by bending the flame.

く問題点を解決するための手段〉 上記問題点を解決するために本発明が講する技術的手段
は、各バーナをその炎孔面が水平方向に向くよう横向き
にして鉛直方向へ複数配置したことを特徴とするもので
ある。Means for Solving the Problems> The technical means taken by the present invention to solve the above problems is to arrange a plurality of burners in a vertical direction with each burner facing horizontally so that its flame hole surface faces horizontally. It is characterized by this.

く作用〉 本発明は上記構成により各炎孔面から混合気が、各バー
ナ間から二次空気が夫々横方向へ上下交互に噴出し、こ
れらを燃焼させることにより、夫々の火炎が途中から上
方へ屈曲して燃焼距離をかせぐものである。According to the present invention, with the above-mentioned configuration, air-fuel mixture from each flame hole surface and secondary air from between each burner are ejected horizontally and vertically alternately, and by burning these, each flame is ejected upward from the middle. It bends to increase the combustion distance.

〈実施例〉 以下、本発明の一実施例を図面に基づいて説明する。<Example> Hereinafter, one embodiment of the present invention will be described based on the drawings.

この実施例は第１図に示す如く、燃焼室（１）を上下に
分割して構成すると共にこの燃焼下部室（１ａ）を上面
及び−側面が開放された箱型状の外室！！（１ａ＋）と
、この外室壁（１ａ＋　）内ニ適宜間隔をあけて内装さ
れる内室壁（１ａ２）とにより二重構造に構成し、これ
ら内外室壁（１ａ＋　）　　（ｌａ２）間に外気を導い
て内室壁（１ａ２）が冷却されるものであり、該内室壁
（１ａ２）の−側には外室壁（１ａｌ）より突出するバ
ーナーケース（１ａ３）を一体連設している。In this embodiment, as shown in Fig. 1, the combustion chamber (1) is divided into upper and lower parts, and the lower combustion chamber (1a) is a box-shaped outer chamber with an open top and side surfaces. ! (1a+) and an inner room wall (1a2) which is installed at an appropriate interval inside this outer room wall (1a+), and has a double structure. The inner chamber wall (1a2) is cooled by guiding the inner chamber wall (1a2), and a burner case (1a3) protruding from the outer chamber wall (1al) is integrally connected to the negative side of the inner chamber wall (1a2). .

バーナーケース（１ａ３）は上下面を閉塞し内外側面が
開放された角筒状に形成され、その内部には複数のバー
ナ（２）を、その炎孔面（２ａ）・・・が内室壁（Ｉａ
２）内方へ向くよう横向きにして上下方向へ所定間隔毎
に夫々配設し、各バーナ（２）・・・の相互間及び上下
両端に位置するバーナ（２）（２）とバーナーケース（
１ａ３）の上下面との隙間には二次空気通路（３）・・
・が夫々形成され、リテーナ（３ａ）・・・を各炎孔面
（２ａ）・・・より内方へ突出して挟着する。The burner case (1a3) is formed into a rectangular tube shape with the upper and lower surfaces closed and the inner and outer surfaces open. (Ia
2) The burners (2) (2) and the burner case (2) are arranged horizontally so as to face inward and are arranged at predetermined intervals in the vertical direction, and are located between each burner (2) and at both the upper and lower ends.
There is a secondary air passage (3) in the gap between the upper and lower surfaces of 1a3).
are formed, respectively, and the retainers (3a) are protruded inward from the flame hole surfaces (2a) and held therebetween.

また、バーナーケース（１ａ３）の外側面にはその開口
を部分的に閉塞せしめる帯状のバーナー固定板（４）を
立設し、このバーナー固定板（４）を介してガスマニホ
ールド（５）を装着すると共に、該固定板（４）にはバ
ーナ（２）に対応する数の吸入孔（４ａ）・・・が等間
隔毎に開穿される。In addition, a band-shaped burner fixing plate (4) that partially closes the opening is installed on the outer surface of the burner case (1a3), and a gas manifold (5) is attached via this burner fixing plate (4). At the same time, a number of suction holes (4a) corresponding to the number of burners (2) are opened in the fixed plate (4) at equal intervals.

バーナ（２）は炎孔面（２ａ）に対して燃料ガス及び−
次空気が供給されるスロート部（２ｂ）を垂直状に有す
る強制混合バーナで、図示例ではスロート部（２ｂ）が
炎孔面（２ａ）の長手方向−側に偏位させて後部に形成
され、該部（２ｂ）の開口縁を上記バーナー固定板（４
）の吸入孔（４ａ）に嵌着せしめる。The burner (2) has a fuel gas and -
This is a forced mixing burner that has a vertical throat section (2b) to which air is supplied; in the illustrated example, the throat section (2b) is formed at the rear side of the flame hole surface (2a) by being deviated toward the negative side in the longitudinal direction. , the opening edge of the part (2b) is attached to the burner fixing plate (4).
) into the suction hole (4a).

ガスマニホールド（５）はバーナーケース（１ａｔ）の
上下方向全長に亙っで筒状に形成され、その外端より電
磁弁（６ａ）を介してガス供給管（６）に連絡すると共
に、内側面にはバーナ（２）に対応する数のガス供給ノ
ズル（５ａ）・・・を等間隔毎で一列状に突設し、これ
ら各ガス供給ノズル（５ａ）・・・の先端が上記各吸入
孔（４ａ）を貫通して各スロート部（２ｂ）内に挿入す
るように取付ける。The gas manifold (5) is formed in a cylindrical shape over the entire length of the burner case (1at) in the vertical direction, and is connected to the gas supply pipe (6) from the outer end via the solenoid valve (6a). A number of gas supply nozzles (5a) corresponding to the burners (2) are protruded in a line at equal intervals, and the tips of these gas supply nozzles (5a) are connected to the respective suction holes. (4a) and is installed so as to be inserted into each throat portion (2b).

一方、前記燃焼上部室（１ｂ）は外室壁（１ａ＋　）の
上面開口と嵌合する角筒状に形成され、その上端に熱交
換器（７）を横設し、該熱交換器（７）の下流側には排
気路（８）を介してファン（９）が配設され、このファ
ン（９）の吸引によって前記バーナーケース（ｔａｘ）
の外側開口から各二次空気通路（３）・・・を経て二次
空気が燃焼室（１）内に導いている。On the other hand, the combustion upper chamber (1b) is formed into a rectangular tube shape that fits into the upper opening of the outer chamber wall (1a+), and a heat exchanger (7) is installed horizontally at the upper end of the upper combustion chamber (1b). ) A fan (9) is disposed on the downstream side of the burner case (tax) via an exhaust path (8).
Secondary air is guided into the combustion chamber (1) from the outer opening of the combustion chamber through each secondary air passage (3).

更に、本実浦例では上記熱交換器（７）を、バーナ（２
）に近い側が遠い側より若干高くなるように傾斜させて
配設している。Furthermore, in this Miura example, the heat exchanger (7) is replaced with a burner (2).
) is arranged so that it is inclined so that the side closer to it is slightly higher than the side further away.

次に、断る燃焼装置の作動について説町する。Next, I will explain about the operation of the combustion device that refuses.

先ず、ファン（９）を駆動させ二次空気がリテーナ（３
ａ）・・・より燃焼下部室（１ａ）内に噴出している状
態で、ガスマニホールド（５）の各ガス供給ノズル（５
ａ）・・・から燃料ガスが各バーナ（２）のスロート部
（２ｂ）内に噴出されると燃料ガスとガスにより引き込
まれた一次空気とが各バーナ（２）・・・内で夫々混合
されて混合気となり、各炎孔面（２ａ）・・・から燃焼
下部室（１ａ）内に向けて夫々横方向へ噴出し燃焼する
。First, the fan (9) is driven and the secondary air flows through the retainer (3).
a)... Each gas supply nozzle (5) of the gas manifold (5) is injected into the lower combustion chamber (1a).
a) When the fuel gas is ejected into the throat part (2b) of each burner (2), the fuel gas and the primary air drawn in by the gas are mixed within each burner (2). The mixture becomes an air-fuel mixture, which is ejected laterally from each flame hole surface (2a) into the lower combustion chamber (1a) and combusts.

そして、これら火炎の外周に、各火炎間及び火炎とバー
ナーケース（１ａ３　）上下面との間に挾まれて噴出さ
れる各二次空気が混合し燃焼を促進せしめ、各火炎は途
中から上方へ向は燃焼上部室（１ｂ）内面に沿って屈曲
し、熱交換器（８）を加熱する。Then, the secondary air that is ejected between the flames and between the flames and the upper and lower surfaces of the burner case (1a3) mixes around the outer periphery of these flames to promote combustion, and each flame moves upward from the middle. The direction is bent along the inner surface of the combustion upper chamber (1b) and heats the heat exchanger (8).

従って、各火炎の先端位置は夫々の燃焼距離が変らない
ため、バーナ（２）に近いもの程高くなりバーナ（２）
から速くなる程徐々に低くなって傾斜するが、本実施例
のものはこれに合わせて熱交換器（７）を傾斜させてい
るから、火炎の先端が部分的に接触したり離れたりする
ことがなく熱交換器（７）全体に厘りで均一に効率良く
加熱することができる。Therefore, since the combustion distance of the tip position of each flame does not change, the closer the flame is to the burner (2), the higher it becomes.
As the flame speed increases, the flame gradually becomes lower and slopes.In this example, the heat exchanger (7) is sloped accordingly, so that the tips of the flames may partially touch or separate. There is no heat exchanger (7), and the entire heat exchanger (7) can be heated uniformly and efficiently.

尚、前示実施例ではファン（９）がバーナく２）の二次
側に配備される強制排気式の場合を示したが、これに限
定されずバーナ（２）の−次側にファン（９）を配備す
る押し込み送風式としても良く、又図面では熱交換器（
７）が追焚用の風呂釜に配備される場合を示したが、こ
れも限定されず、瞬間湯沸器等の給湯用として使用する
ように構成しても良いことは言うまでもない。Incidentally, in the above embodiment, a forced exhaust type case was shown in which the fan (9) is installed on the secondary side of the burner (2), but the present invention is not limited to this, and the fan (9) is installed on the downstream side of the burner (2). 9) may be used as a forced air blower type, and the drawing shows a heat exchanger (
Although 7) is shown as being installed in a bathtub for reheating, this is not limited to this, and it goes without saying that it may be configured to be used for hot water supply with an instantaneous water heater or the like.

〈発明の効果〉 本発明は上記の構成であるから、以下の利点を有する。<Effect of the invention> Since the present invention has the above configuration, it has the following advantages.

■　各炎孔面から混合気が、各バーナ間から二次空気が
夫々横方向へ上下交互に噴出し、これらを燃焼させるこ
とにより、夫々の火炎が途中から上方へ屈曲して燃焼距
離をかせぐので、火炎の燃焼距離を確保しながらバーナ
より熱交換器までの上下寸法を短くすることができる。■ Air-fuel mixture from each flame hole surface and secondary air from between each burner are ejected horizontally and vertically alternately, and by burning these, each flame bends upward from the middle to increase the combustion distance. Therefore, the vertical dimension from the burner to the heat exchanger can be shortened while ensuring the combustion distance of the flame.

従って、従来のものに比べ燃焼状態に悪影響を与えるこ
となく装置全体の小型化が計れる。Therefore, the overall size of the device can be reduced without adversely affecting the combustion state compared to conventional devices.

■　バーナの形状を変えることなくガスマニホールドの
位置を側方より燃焼室に向けて配置できるので、従来の
ものに比べその燃焼状態が変化往ずにガスマニホールド
の分だけ更に装置全体の上下寸法を小型化できる。■ Since the gas manifold can be placed from the side toward the combustion chamber without changing the shape of the burner, the combustion state does not change much compared to conventional ones, and the vertical dimensions of the entire device can be further reduced by the gas manifold. Can be made smaller.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例を示す燃焼装置の縦断正面図
、第２図は同横断平面図で一部切欠して示し、第３図は
第１図（７）　（ＩＩＩ）　−（Ｉ［Ｉ）Ｉニ沿える縦
断側面図である。FIG. 1 is a longitudinal sectional front view of a combustion device showing an embodiment of the present invention, FIG. 2 is a sectional plan view of the same with a part cut away, and FIG. I [I) I is a vertical side view that can be followed.

Claims (1)

【特許請求の範囲】[Claims] 燃焼室に向けて燃料ガスと一次空気との混合気を噴出す
る複数のバーナを等間隔毎に並設し、これら混合気と各
バーナ間の二次空気通路から噴出される二次空気とを燃
焼せしめる燃焼装置において、前記各バーナをその炎孔
面が水平方向を向くよう横向きにして鉛直方向へ複数配
置したことを特徴とする燃焼装置。A plurality of burners that eject a mixture of fuel gas and primary air toward a combustion chamber are arranged in parallel at equal intervals, and these air mixtures and secondary air ejected from a secondary air passage between each burner are A combustion device for causing combustion, characterized in that a plurality of the burners are arranged horizontally so that their flame holes face horizontally, and are arranged in a vertical direction.