JP3464303B2 - Gas burner - Google Patents
Gas burnerInfo
- Publication number
- JP3464303B2 JP3464303B2 JP04203995A JP4203995A JP3464303B2 JP 3464303 B2 JP3464303 B2 JP 3464303B2 JP 04203995 A JP04203995 A JP 04203995A JP 4203995 A JP4203995 A JP 4203995A JP 3464303 B2 JP3464303 B2 JP 3464303B2
- Authority
- JP
- Japan
- Prior art keywords
- combustion chamber
- auxiliary combustion
- hole
- gas
- 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 - Fee Related
Links
Landscapes
- Control Of Combustion (AREA)
- Gas Burners (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ガスバーナに関し、詳
しくは、副燃焼室における副燃焼炎の安定化を図ろうと
する技術に係るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas burner, and more particularly to a technique for stabilizing a secondary combustion flame in a secondary combustion chamber.
【０００２】[0002]
【従来の技術】従来、図５に示すように、混合管１の上
に混合管１から供給されたガスを噴出するバーナーキャ
ップ２が載置され、混合管１とバーナーキャップ２との
間に前方を開放した副燃焼室３ａが形成され、副燃焼室
３ａの奥壁５に混合管１からのガスを供給するガス供給
口６が形成され、副燃焼室３ａの底面に貫通孔４が形成
され、貫通孔４を貫通して炎検知具７が副燃焼室３ａに
設けられ、副燃焼室３ａにおける副燃焼炎に対する二次
空気が貫通孔４をへて供給されるガスバーナにおいて
は、副燃焼室３ａの奥壁５のガス供給口６から噴射され
るガスに対して、主として、副燃焼室３ａの前方から、
また、底部の貫通孔４から二次空気が供給されて、副燃
焼室３ａ内において副燃焼炎が燃焼されるのである。図
５において符号２０は点火プラグである。2. Description of the Related Art Conventionally, as shown in FIG. 5, a burner cap 2 for ejecting the gas supplied from the mixing tube 1 is placed on the mixing tube 1 and is placed between the mixing tube 1 and the burner cap 2. A sub combustion chamber 3a having an open front is formed, a gas supply port 6 for supplying gas from the mixing pipe 1 is formed in a back wall 5 of the sub combustion chamber 3a, and a through hole 4 is formed in a bottom surface of the sub combustion chamber 3a. In the gas burner in which the flame detection tool 7 is provided in the auxiliary combustion chamber 3a through the through hole 4 and the secondary air for the auxiliary combustion flame in the auxiliary combustion chamber 3a is supplied to the through hole 4, the auxiliary combustion is performed. For the gas injected from the gas supply port 6 of the back wall 5 of the chamber 3a, mainly from the front of the auxiliary combustion chamber 3a,
In addition, secondary air is supplied from the through hole 4 at the bottom, and the auxiliary combustion flame is burned in the auxiliary combustion chamber 3a. In FIG. 5, reference numeral 20 is a spark plug.
【０００３】ところで、副燃焼室３ａにおいて副燃焼炎
が燃焼するのに、バーナ部を上昇と降下する気流によっ
て、副燃焼室３ａへの二次空気の供給を安定させ難く、
副燃焼炎が不測に消える場合がある。副燃焼炎が消える
とバーナーキャップ２において燃焼が続けられていて
も、炎検知具７では消火状態として検出され、この検出
結果にてガスの供給が停止され、調理が停止されてしま
うという問題が生じる。By the way, although the auxiliary combustion flame burns in the auxiliary combustion chamber 3a, it is difficult to stabilize the supply of the secondary air to the auxiliary combustion chamber 3a by the air flow rising and falling in the burner section.
The secondary combustion flame may disappear unexpectedly. Even if combustion is continued in the burner cap 2 when the secondary combustion flame disappears, the flame detection tool 7 detects a fire extinguishing state, and as a result of this detection, gas supply is stopped and cooking is stopped. Occurs.
【０００４】このような問題を解消するのに、同図
（ｂ）に示すように、二次空気が供給される貫通孔４に
対して貫通孔４からやや距離を隔てて整流板８を設け、
この整流板８に二次空気を取り入れる通気孔２６ｂを形
成し、しかして、整流板８により上述した気流の変動に
伴う二次空気の供給状況の変動を抑制し、通気孔２６ｂ
から安定的にに二次空気を供給し、副燃焼炎の安定化を
図ることが考えられている。In order to solve such a problem, as shown in FIG. 2B, a current plate 8 is provided at a distance from the through hole 4 to the through hole 4 to which the secondary air is supplied. ,
A ventilation hole 26b for taking in the secondary air is formed in the straightening vane 8. Therefore, the straightening plate 8 suppresses the variation of the supply state of the secondary air due to the above-mentioned variation of the air flow, and the ventilation hole 26b.
It is considered that the secondary air is stably supplied from the above to stabilize the secondary combustion flame.
【０００５】[0005]
【発明が解決しようとする課題】ところが、このような
構成においては、整流板８によって通常の気流の変動を
抑制することができるが、例えばシステムキッチンとし
てユニット化されている電子レンジやオーブンのファン
の駆動により、副燃焼室３ａの下部が負圧になる場合、
図５（ｄ）に示すように、整流板８に形成された通気孔
２６ｂから整流板８の内方の空気が外部に吸引され、こ
れに伴って副燃焼室３ａ内の空気も貫通孔４から吸引さ
れ、このように副燃焼室３ａから空気が吸引されること
で、副燃焼室３ａ内の二次空気が不足し、このため、同
図（ｄ）に示すように、副燃焼炎ｈが二次空気が充分に
供給される副燃焼室３ａの外部にまで伸びることにな
る。このように、副燃焼炎ｈが外方に延びると、副燃焼
室３ａ内の炎検知具７における炎検出が良好におこなえ
なくなり、不測に消火状態として検出する虞がある。図
５（ｃ）は正常な燃焼状態を示している。ところで、整
流板８を設けない場合にも上述の現象が生じるものであ
る。However, in such a configuration, although the fluctuation of the normal air flow can be suppressed by the straightening plate 8, for example, a fan of a microwave oven or an oven unitized as a system kitchen. When the lower part of the auxiliary combustion chamber 3a becomes negative pressure due to the driving of
As shown in FIG. 5D, the air inside the straightening vane 8 is sucked to the outside from the vent hole 26b formed in the straightening vane 8, and along with this, the air in the auxiliary combustion chamber 3a also passes through the through hole 4b. The secondary air in the sub-combustion chamber 3a is deficient because the air is sucked from the sub-combustion chamber 3a in this way, and as a result, as shown in FIG. Will extend to the outside of the auxiliary combustion chamber 3a where the secondary air is sufficiently supplied. In this way, when the auxiliary combustion flame h extends outward, the flame detection tool 7 in the auxiliary combustion chamber 3a cannot detect flames well, and there is a risk that it may be unexpectedly detected as a fire extinguished state. FIG. 5 (c) shows a normal combustion state. By the way, the above-mentioned phenomenon occurs even when the current plate 8 is not provided.
【０００６】本発明はこのような問題に鑑みてなされた
ものであり、その目的は、副燃焼室における簡単な改良
にて、副燃焼室における副燃焼炎を安定化させることが
できるガスバーナを提供しようとするものである。The present invention has been made in view of the above problems, and an object thereof is to provide a gas burner capable of stabilizing a secondary combustion flame in a secondary combustion chamber with a simple improvement in the secondary combustion chamber. Is what you are trying to do.
【０００７】[0007]
【課題を解決するための手段】請求項１においては、混
合管１の上に混合管１から供給されたガスを噴出するバ
ーナーキャップ２が載置され、混合管１とバーナーキャ
ップ２との間に前方を開放した副燃焼室３が形成され、
副燃焼室３の奥壁５に混合管１からのガスを供給するガ
ス供給口６が形成され、副燃焼室３の底面に貫通孔４が
形成され、貫通孔４を貫通して炎検知具７が副燃焼室３
内に設けられ、副燃焼室３における副燃焼炎に対する二
次空気の一部が下方から貫通孔４をへて副燃焼室３へと
供給されるガスバーナであって、副燃焼室３の天井部が
副燃焼室３の出口側程天井高さが高くなるように外部上
方に傾斜して成ることを特徴とするものである。According to the first aspect of the present invention, a burner cap 2 for ejecting the gas supplied from the mixing tube 1 is placed on the mixing tube 1, and the burner cap 2 is placed between the mixing tube 1 and the burner cap 2. An auxiliary combustion chamber 3 with an open front is formed at
A gas supply port 6 for supplying gas from the mixing tube 1 is formed in the back wall 5 of the auxiliary combustion chamber 3, a through hole 4 is formed in the bottom surface of the auxiliary combustion chamber 3, and a flame detection tool penetrates through the through hole 4. 7 is the auxiliary combustion chamber 3
A gas burner which is provided inside and a part of the secondary air for the secondary combustion flame in the secondary combustion chamber 3 is supplied to the secondary combustion chamber 3 through the through hole 4 from below, and the ceiling portion of the secondary combustion chamber 3 is provided. Is inclined upward toward the outside so that the ceiling height becomes higher toward the outlet side of the auxiliary combustion chamber 3.
【０００８】請求項２においては、貫通孔４から供給さ
れる二次空気に対する整流板８が貫通孔４の下方に形成
されて成ることを特徴とするものである。請求項３にお
いては、副燃焼室３の天井部でその奥端から炎検知具７
の上方位置までは略水平であることを特徴とするもので
ある。The present invention is characterized in that the current plate 8 for the secondary air supplied from the through hole 4 is formed below the through hole 4. In the third aspect, the flame detection tool 7 is provided at the ceiling of the auxiliary combustion chamber 3 from the rear end thereof.
It is characterized in that it is substantially horizontal up to the position above.
【０００９】[0009]
【作用】請求項１においては、ガスバーナにおける燃焼
に伴う気流の変化が生じたり、また、例えばシステムキ
ッチンとして組み込まれている電子レンジやオーブンの
ファンの作動で、副燃焼室３の下部に負圧が生じて、貫
通孔４をへて副燃焼室３内の空気が下方に吸引される場
合に、副燃焼室３の天井部が、副燃焼室３の出口側程天
井高さが高くなるように外部上方に傾斜していることに
よって、副燃焼炎が天井部に沿って形成され、二次空気
は副燃焼室３の外側から供給され、また貫通孔４から吸
引される空気は副燃焼室３の下部より副燃焼炎に大きな
影響を与えることなく供給されるので、副燃焼炎の燃焼
を安定させ、炎検知具７による炎検知を安定化させ、ガ
スの供給を不測に断つようなことがなく、ガスバーナに
おける商品価値を高めることができる。According to the first aspect of the present invention, the air flow changes due to the combustion in the gas burner, and the negative pressure is applied to the lower portion of the auxiliary combustion chamber 3 due to the operation of the fan of the microwave oven or the oven incorporated as a system kitchen, for example. Occurs, and when the air in the auxiliary combustion chamber 3 is sucked downward through the through hole 4, the ceiling of the auxiliary combustion chamber 3 becomes higher toward the outlet side of the auxiliary combustion chamber 3. The secondary combustion flame is formed along the ceiling by tilting upward to the outside, the secondary air is supplied from the outside of the secondary combustion chamber 3, and the air sucked from the through hole 4 is the secondary combustion chamber. Since it is supplied from the lower part of 3 without significantly affecting the auxiliary combustion flame, the combustion of the auxiliary combustion flame is stabilized, the flame detection by the flame detection tool 7 is stabilized, and the gas supply is cut off unexpectedly. The product value of a gas burner without It is Mel possible.
【００１０】請求項２においては、ガスバーナにおける
燃焼に伴う気流の変化が生じても、貫通孔４から副燃焼
室３へと供給される二次空気に対する整流板８によっ
て、気流の変化が副燃焼室３に及ぶのを抑制することが
でき、副燃焼炎を安定させることができる。請求項３に
おいては、副燃焼室３の奥から炎検知具７までの略水平
になった天井部分によって副燃焼炎の形状を炎検知に適
したものにすることができ、特に、燃焼量を少なくした
とき炎検知具による炎検知を安定させることができる。According to the present invention, even if the air flow changes due to combustion in the gas burner, the change of the air flow is caused by the rectification plate 8 for the secondary air supplied from the through hole 4 to the auxiliary combustion chamber 3. It can be suppressed that it reaches the chamber 3, and the auxiliary combustion flame can be stabilized. In the third aspect, the shape of the auxiliary combustion flame can be made suitable for flame detection by the substantially horizontal ceiling portion from the back of the auxiliary combustion chamber 3 to the flame detection tool 7, and in particular, the combustion amount can be reduced. When the amount is reduced, the flame detection by the flame detection tool can be stabilized.
【００１１】[0011]
【実施例】以下本発明の実施例を図面に基づいて詳述す
る。図１は本発明の要部の断面図であり、図２（ａ）は
全体の破断正面図、（ｂ）は破断平面図である。図２に
示すように、混合管１は、管路部９と、管路部９の上端
に形成されている環状の載置部１ａとから構成されてい
る。管路部９の基端部に板材を絞り加工した略椀状のフ
ランジ１０が連結され、フランジ１０にはダンパー１１
及びノズル１２が取付けられ、ノズル１２に接続された
ガス管（図示せず）から燃料ガスが所定量供給されると
ともに、ダンパー１１から一次空気が吸入されて混合さ
れるようにしてある。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a cross-sectional view of a main part of the present invention, FIG. 2 (a) is an overall broken front view, and FIG. 2 (b) is a broken plan view. As shown in FIG. 2, the mixing pipe 1 is composed of a pipe passage portion 9 and an annular mounting portion 1 a formed at the upper end of the pipe passage portion 9. A substantially bowl-shaped flange 10 formed by drawing a plate material is connected to the base end portion of the pipe line portion 9, and the damper 11 is attached to the flange 10.
A nozzle 12 is attached, and a predetermined amount of fuel gas is supplied from a gas pipe (not shown) connected to the nozzle 12, and primary air is sucked from the damper 11 and mixed.
【００１２】管路部９の先端部の載置部１ａは、上板１
３と下板１４とをかしめた中空構造のものである。載置
部１ａの上には、例えば、真ちゅう鋳物製のバーナーキ
ャップ２を載設させてある。バーナーキャップ２は図３
に示すように、ドーム状に形成され、その外周部で載置
部１ａに対向する下面には、放射状にガス噴出溝１５が
多数本形成されている。しかして、一次空気が混合され
た燃料ガスが管路部９の先端開口から上方に噴出され、
ドーム状のバーナーキャップ２の天井部に衝突して周方
向に拡散し、バーナーキャップ２の下面に沿って放射状
にガス噴出溝１５…から外部へと案内され、これらガス
噴出溝１５の先端部と下面に対向する載置部１ａ部分と
で形成される炎孔１６から外部に噴出させることができ
るようにしてある。The mounting portion 1a at the tip of the conduit 9 is the upper plate 1
3 and the lower plate 14 are caulked. A burner cap 2 made of brass, for example, is mounted on the mounting portion 1a. The burner cap 2 is shown in FIG.
As shown in FIG. 3, a large number of gas ejection grooves 15 are radially formed on the lower surface which is formed in a dome shape and faces the mounting portion 1a at the outer peripheral portion thereof. Then, the fuel gas mixed with the primary air is ejected upward from the tip opening of the pipe portion 9,
It collides with the ceiling portion of the dome-shaped burner cap 2 and diffuses in the circumferential direction, and is radially guided along the lower surface of the burner cap 2 from the gas ejection grooves 15 ... It can be ejected to the outside from a flame hole 16 formed by the mounting portion 1a facing the lower surface.
【００１３】バーナーキャップ２の周方向の一部に、副
燃焼室３が形成され、この副燃焼室３において着火がな
され、この着火にて上記炎孔１６…の点火がおこなわれ
るようにしてある。以下副燃焼室３の構成を詳述する。
図３に示すように、バーナーキャップ２の周方向の所定
箇所に周方向に間隔を隔てて一対の隔壁１７，１７が垂
下され、これら隔壁１７，１７、隔壁１７，１７間の奥
壁５及び天井部１８にて副燃焼室３が構成されている。
奥壁５には、二本のガス供給溝１９，１９が形成され
て、ドーム状のバーナーキャップ２の中央部のガス溜部
と副燃焼室３の内部とを連通し、副燃焼室３に一次空気
を混合した燃料ガスをガス供給溝１９の先端のガス供給
口６から副燃焼室３へと供給することができるようにし
てある。A sub-combustion chamber 3 is formed in a part of the burner cap 2 in the circumferential direction, and the sub-combustion chamber 3 is ignited, and the flame holes 16 are ignited by the ignition. . The configuration of the auxiliary combustion chamber 3 will be described in detail below.
As shown in FIG. 3, a pair of partition walls 17, 17 hangs at predetermined positions in the circumferential direction of the burner cap 2 at intervals in the circumferential direction, and these partition walls 17, 17 and the inner wall 5 between the partition walls 17, 17 and. The sub-combustion chamber 3 is configured by the ceiling portion 18.
Two gas supply grooves 19, 19 are formed in the inner wall 5 to communicate the gas reservoir in the central portion of the dome-shaped burner cap 2 with the inside of the auxiliary combustion chamber 3 and to the auxiliary combustion chamber 3. The fuel gas mixed with the primary air can be supplied to the auxiliary combustion chamber 3 from the gas supply port 6 at the tip of the gas supply groove 19.
【００１４】一方、副燃焼室３の底面となる載置部１ａ
部分で、その上下板１３，１４には穿孔が形成され、上
板１３の貫通孔４から副燃焼室３に二次空気が下方から
供給することができるようにしてある。この場合、上板
１３の外周の縦壁及び下板１４部分が整流板８となり、
二次空気が貫通孔４から副燃焼室３に供給されるのに、
整流作用を与え、気流に変動が生じても副燃焼室３への
貫通孔４からの二次空気の供給に変動を与えるのを抑制
し、副燃焼室３に安定的に二次空気を供給することがで
きるようにしてある。On the other hand, the mounting portion 1a which is the bottom surface of the auxiliary combustion chamber 3
Perforations are formed in the upper and lower plates 13 and 14 in part, so that secondary air can be supplied from below through the through holes 4 in the upper plate 13 to the auxiliary combustion chamber 3. In this case, the vertical wall on the outer periphery of the upper plate 13 and the lower plate 14 portion become the current plate 8.
Although the secondary air is supplied to the auxiliary combustion chamber 3 from the through hole 4,
A rectifying action is applied to suppress fluctuations in the supply of secondary air from the through holes 4 to the auxiliary combustion chamber 3 even if fluctuations occur in the air flow, and the secondary air is stably supplied to the auxiliary combustion chamber 3. I am able to do it.
【００１５】更に述べれば、図４に示すように、下板１
４は、中央孔２４が形成された中央部の周部に凹溝部２
３が段差をつけて凹入するように曲成されている。上板
１３に形成された貫通孔４の下方に相当する下板１４部
分に挿通孔２７，２８が形成され、点火プラグ２０及び
炎検知具７としての熱電対２１が挿入されている。更
に、下板１４には、貫通孔４の下方に相当する箇所に通
気孔２６ａが形成されている。このように、下板１４に
通気孔２６ａが形成されることで、貫通孔４から二次空
気が副燃焼室３へと吸引されて供給されるようにしてあ
る。More specifically, as shown in FIG. 4, the lower plate 1
4 is a concave groove portion 2 in the peripheral portion of the central portion where the central hole 24 is formed.
3 is curved so that it has a step and is recessed. Insertion holes 27 and 28 are formed in the lower plate 14 corresponding to the lower part of the through hole 4 formed in the upper plate 13, and the ignition plug 20 and the thermocouple 21 as the flame detection tool 7 are inserted therein. Further, the lower plate 14 is formed with a ventilation hole 26 a at a position corresponding to the lower side of the through hole 4. By forming the ventilation holes 26a in the lower plate 14 in this manner, the secondary air is sucked and supplied from the through holes 4 to the auxiliary combustion chamber 3.
【００１６】貫通孔４の下方に配設された点火プラグ２
０、及び貫通孔４を貫通して、副燃焼室３内に挿入され
ている熱電対２１は、混合管１に取付けられたターミナ
ル板２２などを介して環状の載置部１ａに取付けられて
いる。このような構成によれば、ガス器具における操作
釦（図示せず）を押し込んで回転させ、バルブ（図示せ
ず）を開き、供給される燃焼ガスに一次空気を混合し、
点火プラグ２０により、副燃焼室３において点火をおこ
ない、副燃焼炎により、炎孔１６…に着火がおこなわれ
るのである。そして操作釦から手を離して操作釦がばね
力によって戻され、バルブがばねで閉成状態に戻されよ
うとするが、副燃焼炎の着火状態を熱電対２１にて受熱
し、その起電力によってバルブの閉成方向の作動を阻止
し、バルブの開状態を維持するのである。このような熱
電対２１によるバルブの操作構造は公知のものを使用す
る。A spark plug 2 arranged below the through hole 4.
0 and the thermocouple 21 penetrating through the through hole 4 and inserted into the auxiliary combustion chamber 3 is attached to the annular mounting portion 1a via the terminal plate 22 attached to the mixing tube 1 and the like. There is. According to such a configuration, the operation button (not shown) in the gas appliance is pushed and rotated, the valve (not shown) is opened, and the combustion gas supplied is mixed with primary air,
The spark plug 20 ignites in the auxiliary combustion chamber 3, and the auxiliary combustion flame ignites the flame holes 16. The operation button is released by the spring force and the valve tries to return to the closed state by the spring, but the ignition state of the auxiliary combustion flame is received by the thermocouple 21 and its electromotive force is generated. This prevents the valve from operating in the closing direction and keeps the valve open. A known valve operating structure using the thermocouple 21 is used.
【００１７】ところで、図１に示すように、副燃焼室３
の天井部が副燃焼室３の出口側程天井高さが高くなるよ
うに外部上方に傾斜させてある。この場合、副燃焼室３
の天井部の外部上面部はバーナーキャップ２の上面より
も上方に突出している。また、副燃焼室３の天井部でそ
の奥端から炎検知具７の上方位置までは略水平になって
いる。By the way, as shown in FIG. 1, the auxiliary combustion chamber 3
The ceiling part is inclined outwardly so that the ceiling height becomes higher toward the outlet side of the auxiliary combustion chamber 3. In this case, the auxiliary combustion chamber 3
The outer upper surface portion of the ceiling portion of the above protrudes above the upper surface of the burner cap 2. Further, the ceiling portion of the auxiliary combustion chamber 3 is substantially horizontal from its rear end to a position above the flame detection tool 7.
【００１８】しかして、ガスバーナにおける燃焼に伴う
気流が変化したり、例えばシステムキッチンとして器内
に組み込まれている電子レンジやオーブンのファンの作
動で、副燃焼室３の下部に負圧が生じて、貫通孔４及び
整流板８の通気孔２６ａをへて副燃焼室３内の空気を下
方に吸引されるのに、副燃焼室３の天井部は、副燃焼室
３の出口側程天井高さが高くなるように外部上方に傾斜
していることによって、副燃焼炎が天井部に沿って形成
され、二次空気は副燃焼室３の外側から供給され、また
貫通孔４から吸引される空気は副燃焼室３の下部より副
燃焼炎に大きな影響を与えることなく供給されるので、
副燃焼炎の燃焼を安定させ、炎検知具７による炎検知を
安定化させるのである。However, the air flow accompanying the combustion in the gas burner changes, or a negative pressure is generated in the lower portion of the auxiliary combustion chamber 3 due to the operation of a fan of a microwave oven or an oven incorporated in the chamber as a system kitchen, for example. Although the air in the auxiliary combustion chamber 3 is sucked downward through the through holes 4 and the ventilation holes 26a of the straightening plate 8, the ceiling portion of the auxiliary combustion chamber 3 has a ceiling height closer to the outlet side of the auxiliary combustion chamber 3. The secondary combustion flame is formed along the ceiling by inclining upward so that the height becomes higher, and the secondary air is supplied from the outside of the secondary combustion chamber 3 and is sucked from the through hole 4. Since air is supplied from the lower part of the auxiliary combustion chamber 3 without significantly affecting the auxiliary combustion flame,
The combustion of the auxiliary combustion flame is stabilized, and the flame detection by the flame detection tool 7 is stabilized.
【００１９】尚、実施例においては、副燃焼室３の天井
部の奥部は略水平にしたが、天井部の奥部にまでに至っ
て斜めにしてもよいものである。また、整流板８の形状
形態は種々設計変更可能であり、図５（ｂ）（ｃ）
（ｄ）のものでもよく、また通気孔も同図の通気孔２６
ｂのように側面にあってもよい。In the embodiment, the inner part of the ceiling of the sub-combustion chamber 3 is substantially horizontal, but it may be slanted to the inner part of the ceiling. In addition, the shape and form of the straightening vane 8 can be changed in various ways, as shown in FIGS.
(D) may be used, and the ventilation hole is also the ventilation hole 26 in the same figure.
It may be on the side like b.
【００２０】また、混合管１及びバーナーキャップ２
は、図５に示すような形状形態のものであってもよく、
他の形状形態のものであってもよいものである。Further, the mixing tube 1 and the burner cap 2
May have a shape as shown in FIG.
It may have another shape.
【００２１】[0021]
【発明の効果】請求項１においては、混合管の上に混合
管から供給されたガスを噴出するバーナーキャップが載
置され、混合管とバーナーキャップとの間に前方を開放
した副燃焼室が形成され、副燃焼室の奥壁に混合管から
のガスを供給するガス供給口が形成され、副燃焼室の底
面に貫通孔が形成され、貫通孔を貫通して炎検知具が副
燃焼室に設けられ、副燃焼室における副燃焼炎に対する
二次空気の一部が下方から貫通孔をへて副燃焼室へと供
給されるガスバーナであって、副燃焼室の天井部が副燃
焼室の出口側程天井高さが高くなるように外部上方に傾
斜しているから、ガスバーナにおける燃焼に伴う気流の
変化が生じたり、また、例えば電子レンジやオーブンの
ファンの作動で、副燃焼室の下部に負圧が生じて、貫通
孔をへて副燃焼室内の空気を下方に吸引される場合に、
副燃焼室の天井部が、副燃焼室の出口側程天井高さが高
くなるように外部上方に傾斜していることによって、副
燃焼室の外側から二次空気を副燃焼室内に良好に吸引す
ることができ、このように二次空気の供給を安定させ、
副燃焼炎の燃焼を安定させ、炎検知具による炎検知を安
定化させ、ガスの供給を不測に断つようなことがなく、
ガスバーナにおける商品価値を高めることができるとい
う利点がある。According to the first aspect of the present invention, the burner cap for ejecting the gas supplied from the mixing tube is mounted on the mixing tube, and the auxiliary combustion chamber having an open front is provided between the mixing tube and the burner cap. Is formed, a gas supply port for supplying gas from the mixing pipe is formed in the inner wall of the auxiliary combustion chamber, a through hole is formed in the bottom surface of the auxiliary combustion chamber, and the flame detection tool penetrates through the through hole and the flame detection tool Is a gas burner in which a part of the secondary air for the auxiliary combustion flame in the auxiliary combustion chamber is supplied from below to the auxiliary combustion chamber through the through hole, and the ceiling portion of the auxiliary combustion chamber has the ceiling of the auxiliary combustion chamber. Since the ceiling is inclined upward toward the outlet side so that the ceiling height becomes higher, the air flow changes due to combustion in the gas burner, and the lower part of the sub-combustion chamber is activated by, for example, the operation of a fan of a microwave oven or an oven. Negative pressure is generated in the auxiliary combustion chamber through the through hole. When it is sucking the air downward,
Since the ceiling of the sub-combustion chamber is inclined upward and outward so that the ceiling height becomes higher toward the outlet side of the sub-combustion chamber, secondary air is satisfactorily sucked into the sub-combustion chamber from the outside of the sub-combustion chamber. Can stabilize the supply of secondary air in this way,
Stabilize the combustion of the secondary combustion flame, stabilize the flame detection by the flame detection tool, and do not unexpectedly cut off the gas supply,
There is an advantage that the commercial value of the gas burner can be increased.
【００２２】請求項２においては、貫通孔から供給され
る二次空気に対する整流板が貫通孔の下方に形成されて
いるから、ガスバーナにおける燃焼に伴う気流の変化が
生じても、整流板によって気流の変化が副燃焼室に及ぶ
のを抑制することができ、副燃焼炎を安定させることが
できるという利点がある。請求項３においては、副燃焼
室の天井部でその奥端から炎検知具の上方位置までは略
水平であるから、副燃焼室の奥から炎検知具までの略水
平になった天井部分によって副燃焼炎の形状を炎検知に
適したものにさせることができるという利点がある。According to the second aspect of the present invention, since the current plate for the secondary air supplied from the through hole is formed below the through hole, even if the air flow changes due to combustion in the gas burner, the air flow is generated by the current plate. It is possible to suppress the change in the sub combustion chamber from reaching the sub combustion chamber and to stabilize the sub combustion flame. In the third aspect of the present invention, since the ceiling portion of the auxiliary combustion chamber is substantially horizontal from its rear end to the upper position of the flame detection tool, the ceiling portion is substantially horizontal from the depth of the auxiliary combustion chamber to the flame detection tool. There is an advantage that the shape of the secondary combustion flame can be made suitable for flame detection.
【図１】本発明の一実施例を示す部分断面図である。FIG. 1 is a partial sectional view showing an embodiment of the present invention.
【図２】（ａ）は一部省略し、一部破断した全体正面
図、（ｂ）は一部省略した全体平面図である。FIG. 2A is an overall front view in which a part is omitted and a part is broken, and FIG. 2B is an overall plan view in which a part is omitted.
【図３】（ａ）は同上のバーナーキャップの断面図、
（ｂ）はバーナーキャップの一部破断した底面図であ
る。FIG. 3A is a sectional view of the burner cap of the above.
(B) is a bottom view in which the burner cap is partially broken.
【図４】（ａ）は同上の整流板の断面図、（ｂ）は整流
板の平面図である。FIG. 4A is a cross-sectional view of the same current plate, and FIG. 4B is a plan view of the current plate.
【図５】（ａ）は従来例の断面図、（ｂ）は部分拡大概
略断面図、（ｃ）（ｄ）は同上の作用を示す断面図であ
る。5A is a sectional view of a conventional example, FIG. 5B is a partially enlarged schematic sectional view, and FIGS. 5C and 5D are sectional views showing the same operation.
１ 混合管 ２ バーナーキャップ ３ 副燃焼室 ４ 貫通孔 ５ 奥壁 ６ ガス供給口 ７ 炎検知具 ８ 整流板 1 mixing tube 2 burner cap 3 Secondary combustion chamber 4 through holes 5 back wall 6 gas supply port 7 Flame detector 8 straightening plate
フロントページの続き (56)参考文献 特開 昭63−302210（ＪＰ，Ａ) 特開 昭63−259320（ＪＰ，Ａ) 特開 平８−114308（ＪＰ，Ａ) 実開 昭63−12018（ＪＰ，Ｕ) 実開 昭63−167027（ＪＰ，Ｕ) 実開 平３−87048（ＪＰ，Ｕ) 実開 平３−46745（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F23D 14/06 F23N 5/10 Continuation of the front page (56) References JP 63-302210 (JP, A) JP 63-259320 (JP, A) JP 8-114308 (JP, A) Actual development 63-12018 (JP , U) Actual development Sho 63-167027 (JP, U) Actual development 3-87048 (JP, U) Actual development 3-46745 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB) Name) F23D 14/06 F23N 5/10
Claims (3)
を噴出するバーナーキャップが載置され、混合管とバー
ナーキャップとの間に前方を開放した副燃焼室が形成さ
れ、副燃焼室の奥壁に混合管からのガスを供給するガス
供給口が形成され、副燃焼室の底面に貫通孔が形成さ
れ、貫通孔を貫通して炎検知具が副燃焼室内に設けら
れ、副燃焼室における副燃焼炎に対する二次空気の一部
が下方から貫通孔をへて副燃焼室へと供給されるガスバ
ーナであって、副燃焼室の天井部が副燃焼室の出口側程
天井高さが高くなるように外部上方に傾斜して成ること
を特徴とするガスバーナ。1. A burner cap for ejecting gas supplied from the mixing pipe is mounted on the mixing pipe, and a sub combustion chamber having an open front is formed between the mixing pipe and the burner cap. A gas supply port for supplying gas from the mixing pipe is formed in the inner wall of the sub-combustion chamber, a through hole is formed in the bottom surface of the auxiliary combustion chamber, and a flame detection tool is provided in the auxiliary combustion chamber through the through hole. A part of the secondary air for the secondary combustion flame in the chamber is a gas burner that is supplied to the secondary combustion chamber through a through hole from below, and the ceiling of the secondary combustion chamber has a ceiling height closer to the outlet side of the secondary combustion chamber. The gas burner is characterized in that the gas burner is inclined upward and outward so as to be higher.
整流板が貫通孔の下方に形成されて成ることを特徴とす
る請求項１記載のガスバーナ。2. The gas burner according to claim 1, wherein a current plate for the secondary air supplied from the through hole is formed below the through hole.
具の上方位置までは略水平であることを特徴とする請求
項１記載のガスバーナ。3. The gas burner according to claim 1, wherein the ceiling portion of the auxiliary combustion chamber is substantially horizontal from its rear end to a position above the flame detection tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04203995A JP3464303B2 (en) | 1995-03-01 | 1995-03-01 | Gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04203995A JP3464303B2 (en) | 1995-03-01 | 1995-03-01 | Gas burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08233222A JPH08233222A (en) | 1996-09-10 |
| JP3464303B2 true JP3464303B2 (en) | 2003-11-10 |
Family
ID=12625007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04203995A Expired - Fee Related JP3464303B2 (en) | 1995-03-01 | 1995-03-01 | Gas burner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3464303B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6000143B2 (en) * | 2013-01-28 | 2016-09-28 | リンナイ株式会社 | Stove burner |
-
1995
- 1995-03-01 JP JP04203995A patent/JP3464303B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08233222A (en) | 1996-09-10 |
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