JPH03144206A - Nox reducing burner - Google Patents
Nox reducing burnerInfo
- Publication number
- JPH03144206A JPH03144206A JP1280844A JP28084489A JPH03144206A JP H03144206 A JPH03144206 A JP H03144206A JP 1280844 A JP1280844 A JP 1280844A JP 28084489 A JP28084489 A JP 28084489A JP H03144206 A JPH03144206 A JP H03144206A
- Authority
- JP
- Japan
- Prior art keywords
- flame
- main flame
- exhaust gas
- main
- burner
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 40
- 230000000087 stabilizing effect Effects 0.000 claims description 18
- 239000007789 gas Substances 0.000 description 34
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 27
- 230000007423 decrease Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Gas Burners (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、ガスこんろ等のガス燃焼器具に用いるＮＯ
ｘ低減バーナに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention is an NO.
Regarding the x reduction burner.
ＮＯｘ （窒素酸化物）の低減については、環境保存の
見地から強く要望されており、ガスこんろ等のガス燃焼
器具についても例外ではない。There is a strong demand for reducing NOx (nitrogen oxides) from the standpoint of environmental preservation, and gas-burning appliances such as gas stoves are no exception.
そこで、ガスこんろ等のガス燃焼器具において、ＮＯｘ
を低減するには、バーナの燃焼速度を遅延させて燃焼炎
の温度を低下させる必要があるが、従来の技術としては
、たとえば、バーナの燃焼炎中に金属製の板片又はコイ
ル等を挿入するか、バーナの燃焼炎に水蒸気を混入する
などしてバーナの燃焼速度を遅らせ燃焼炎の温度低下を
図っている。Therefore, in gas combustion appliances such as gas stoves, NOx
In order to reduce this, it is necessary to reduce the temperature of the combustion flame by retarding the combustion speed of the burner, but conventional techniques include, for example, inserting a metal plate or coil into the combustion flame of the burner Alternatively, water vapor is mixed into the combustion flame of the burner to slow down the combustion speed of the burner and lower the temperature of the combustion flame.
上記従来の技術にあっては、バーナの燃焼炎中に金ｒ７
Ａ製の板片又はコイル等を挿入するか、バーナの燃焼炎
に水蒸気を混入させるなどの技術的手段を採っているた
め、燃焼炎が板片、水蒸気等に熱を奪われて温度低下す
る分だけ熱量は低下する欠点があるとともに、板片、コ
イル又は水蒸気噴出ノズル等をバーナの主炎口に臨ませ
°ζ別に取付は設置する必要があるから、それだけ機構
が複雑、かつ、高価となる難点がある。のみならず、こ
れらが外部に露出して邪魔になるばかりでなく、ガスこ
んろ用バーナ等においては、煮こぼれがこれらに付着し
て機能低下を惹起するなどの問題点があった。In the above conventional technology, gold r7 is present in the combustion flame of the burner.
Because technical measures such as inserting A-made plates or coils or mixing steam into the combustion flame of the burner are taken, the temperature of the combustion flame decreases as heat is taken away by the plates and steam. This has the disadvantage that the amount of heat decreases accordingly, and it is necessary to install a plate piece, coil, steam jet nozzle, etc. separately facing the main flame opening of the burner, which makes the mechanism complicated and expensive. There is a drawback. Not only are these exposed to the outside and become a nuisance, but in burners for gas stoves and the like, there are problems in that boiled boiled water adheres to these and causes a decline in functionality.
この発明は、従来の技術の有す、る斯かる問題点に鑑み
、主炎が側突の燃焼排気ガスをもらって燃焼するように
なすことによって、熱量を低下させることなく効果的な
ＮＯｘの低減を図りうるＮ０ｘａ１減バーナの提供を目
的としている。In view of such problems with the conventional technology, this invention effectively reduces NOx without reducing the amount of heat by making the main flame receive the combustion exhaust gas from the side collision and combust it. The purpose is to provide a N0xa1 reduction burner that can achieve the following.
（！！４１を解決するための手段〕
上記目的を達成するために、この発明のＮＯｘ低減バー
ナにおける請求項１の発明は、主炎口と、該主炎口の下
部に設けた側突口を、側突口に形成される側突の燃焼排
気ガスが主炎口に形成される主炎部に導かれて接するよ
うに配置せしめたことを特徴とするものであり、請求項
２の発明は、側突口に保炎部Ｉを設けたものである。ま
た、請求項３〜５の発明は、保炎部材を技術的に限定し
たもので、請求項３の発明は、側突口の外面に金網を張
設し、請求項４の発明は、側突口の外面上部に傘を突段
し、請求項５の発明は、側突口の外面に邪魔板を設けた
ものである。(Means for Solving !!41) In order to achieve the above object, the invention of claim 1 in the NOx reduction burner of the present invention provides a main flame port and a side projecting port provided at the lower part of the main flame port. The invention is characterized in that the combustion exhaust gas from the side impact formed at the side impact port is guided to and comes into contact with the main flame section formed at the main flame port, and the invention according to claim 2 The flame stabilizing portion I is provided at the side vent.In addition, the inventions of claims 3 to 5 technically limit the flame stabilizing member, and the invention of claim 3 is the one in which the flame stabilizing portion I is provided at the side vent. A wire mesh is stretched over the outer surface of the side vent, the invention of claim 4 has an umbrella protruding from the upper part of the outer surface of the side vent, and the invention of claim 5 has a baffle plate provided on the outer surface of the side vent. .
上記構成としたこの発明によるＮＯｘ低減バーナの請求
項ｌに記載した発明にあっては、側突口に形成される側
突の燃焼排気ガスが主炎口に形成される主炎部に導かれ
て接するので、主炎の燃焼速度は側突の燃焼排気ガスが
接した分だけ遅くなり主炎の温度は低下し、かつ、側突
口の分だけ全体の炎口面積が増大するから負荷は軽くな
って一次空気量が増えるためにＮＯｘは低減する。また
、主炎に側突の燃焼排気ガスが合流し加熱に供されるか
ら、主炎の温度は低下してもその熱量は主炎本来の熱量
に維持され熱効率は低下しない。In the invention set forth in claim 1 of the NOx reduction burner according to the present invention having the above structure, the side combustion exhaust gas formed at the side injection port is guided to the main flame section formed at the main flame port. Since the main flame is in contact with the combustion exhaust gas from the side, the combustion speed of the main flame is slowed by the contact with the combustion exhaust gas from the side, and the temperature of the main flame decreases.Also, the overall flame opening area increases by the amount of the side butt, so the load is reduced. Since it is lighter and the amount of primary air increases, NOx is reduced. Moreover, since the combustion exhaust gas from the side collision joins the main flame and is used for heating, even if the temperature of the main flame decreases, the amount of heat is maintained at the original amount of heat of the main flame, and thermal efficiency does not decrease.
請求項２に記載した発明では、側突口に保炎部材を設け
たので、側突は安定＋、てその燃焼排気ガスの主炎部へ
の誘導を！！実よすると１ともに、ｎｌＪ炎の幅が広く
なって相隣接する側突を相互に連絡する。In the invention described in claim 2, since the flame stabilizing member is provided at the side ejection port, the side ejection is stable and the combustion exhaust gas is guided to the main flame part! ! In fact, in both cases, the width of the nlJ flame becomes wider and connects the adjacent lateral projections.
また、請求項３に記載した発明は、保炎部材として側突
口の外面に金′ｌＩ４壱張設したので 側突口から噴出
する混合ガスは金冒を通過して後着火燃焼されるために
、該金網による混合ガスの噴出速度のｒＩ和作用等によ
って側突は安定し、側突の幅は広くなる。In addition, in the invention described in claim 3, since the outer surface of the side port is coated with gold as a flame stabilizing member, the mixed gas ejected from the side port is ignited and burned after passing through the metal plate. In addition, the side impact is stabilized due to the rI sum of the ejection speed of the mixed gas due to the wire mesh, and the width of the side impact becomes wider.
請求項４に記載した発明は、保炎部材として側突口の外
面上部に傘を突設したので、側突口に形成される側突が
傘に触れてその勢いが抑制されるごとにより、該側突は
安定し、側突の幅は広くなる。In the invention described in claim 4, since the umbrella is protruded from the upper part of the outer surface of the side protrusion as a flame stabilizing member, each time the side protrusion formed at the side protrusion touches the umbrella and its momentum is suppressed, The side bump becomes stable and the width of the side bump becomes wider.
請求項５に記載し発明は、保炎部材として側突口の外面
に邪魔板を設けたので、側突口から横方向に噴出する混
合ガスは邪魔板に当たって斜め上方に流れ着火燃焼され
るために、該邪魔板による；ｉＬ合ガスの噴出速度の緩
和及び側突の抑制作用等によって側突は安定し、側突の
幅は広くなる。In the invention described in claim 5, since a baffle plate is provided on the outer surface of the side protrusion as a flame stabilizing member, the mixed gas jetting out laterally from the side protrusion hits the baffle plate and flows obliquely upward to be ignited and burned. Second, the baffle plate stabilizes the side collision and widens the width of the side collision by moderating the ejection speed of the iL gas and suppressing the side collision.
以下この発明のＮＯｘ低減バーナの実施例について図面
を参照して説明する。Embodiments of the NOx reduction burner of the present invention will be described below with reference to the drawings.
図示の実施例は、こんろバーナにこの発明を適用したも
のであって、混合管４の先端部に一体形成せるバーナボ
ディ５にバーナキャンプ６を脱着自由に備えてなる板金
製のこんろバーナにおいて、請求項１記載の発明は、バ
ーナボディ５とバーナキャップ６との間に多数の主炎口
ｌを放射状に形成し、かつ、バーナボディ５の細径首部
５ａの周壁には多数の側突口２を穿設せしめて、前記主
炎口１と側突口２の位置関係を側突口２に形成される側
突ａの燃焼排気ガスＣが主炎口１に形成される主炎す部
に導かれて接するように配置し、側突ａの燃焼排気ガス
Ｃが主炎す部へ確実に導かれるように構成している。な
お、前記側突口２を実施例のように、バーナボディ５の
細径首部５ａに設けると、該側突口２がバーナボディ５
とバーナキャップ６の上端外縁に形成された環状凸部７
．８により完全に覆われる。また、後述する実験例によ
れば、側突口２からは２０％稈度のガスを噴出させるの
がＮ Ｏｘ低減に最も有効であった。しかして、該側突
［１２の開口面積はｒｉｌ記ガス噴出量に見合う開口面
積、たとえば、１．５５−の孔、２９個を首部５ａの周
壁に等間隔を存して穿ち、側突口２を形成するものであ
る。The illustrated embodiment is a stove burner to which the present invention is applied, and is a stove burner made of sheet metal, in which a burner camp 6 is freely attached and detached to a burner body 5 that is integrally formed at the tip of a mixing tube 4. In the invention according to claim 1, a large number of main flame ports l are formed radially between the burner body 5 and the burner cap 6, and a large number of side holes are formed on the peripheral wall of the narrow diameter neck portion 5a of the burner body 5. The main flame opening 2 is drilled, and the positional relationship between the main flame opening 1 and the side opening 2 is changed so that the combustion exhaust gas C of the side opening a formed at the side opening 2 is the main flame formed at the main flame opening 1. The combustion exhaust gas C from the side impact a is reliably guided to the main flame part. Note that when the side protrusion 2 is provided in the narrow diameter neck portion 5a of the burner body 5 as in the embodiment, the side protrusion 2 is provided in the burner body 5.
and an annular convex portion 7 formed on the outer edge of the upper end of the burner cap 6.
．． completely covered by 8. Further, according to an experimental example to be described later, it was found that blowing out gas having a culm of 20% from the side nozzle 2 was most effective for reducing NOx. Therefore, the opening area of the side protrusion [12] is an opening area corresponding to the amount of gas ejected, for example, 29 holes of 1.55 mm are bored at equal intervals on the peripheral wall of the neck 5a, and the side protrusion opening 2.
また、請求項２記載の発明は、前記側突口２に保炎部材
３を設けて、側突ａの安定化と連結効果を高めている。Further, in the invention as set forth in claim 2, a flame stabilizing member 3 is provided at the side protrusion 2 to enhance the stabilization and connection effect of the side protrusion a.
すなわち、該保炎部材３として、請求項３記載の発明は
、側突口２の外面に帯状の金網３ａを巻きつけ固定して
側突口２の外面に金網３ａを張設しく第１図及び第２図
参照）、請求項４記載の発明は、側突口２の外面上部に
環状の傘３ｂを突設しく第３図及び第４図参照）、請求
項５記載の発明は、側突口２の外面に上部を開口した環
状の邪魔板３ｃを設けた（第５図参照）構成としている
。That is, as the flame stabilizing member 3, a belt-shaped wire mesh 3a is wound and fixed around the outer surface of the side port 2, and the wire mesh 3a is stretched over the outer surface of the side port 2. and FIG. 2), the invention according to claim 4 provides an annular umbrella 3b projecting from the upper part of the outer surface of the side opening 2 (see FIGS. 3 and 4), and the invention according to claim 5 provides a side An annular baffle plate 3c with an open top is provided on the outer surface of the protrusion 2 (see FIG. 5).
なお、図中９はこんろバーナの混合管４の基端開口部に
設けたｉＮ節仮で、燃焼用−次空気の供給′！Ｊを調ｓ
ｒるためのものである。１０は燃料ガスの噴出ノズルで
ある。In addition, 9 in the figure is an iN node provided at the base end opening of the mixing tube 4 of the stove burner, which is used to supply combustion air. key J
It is for the purpose of 10 is a fuel gas jet nozzle.
前記構成において、請求項１記載の発明の実施例にあっ
ては、こんろバーナにおいて、バーナボディ５の縮径首
部５ａの周壁に段けた側突口２に形成される側突ｄＩ１
７）燃焼排気ガスＣが、その上部の主炎口１に形成され
る主炎す部に主炎すのドラフト作用も加味されてバーナ
ボディ５の環状凸部７のＦ面を通って確実に導かれて接
するので、主炎ｂの燃焼速度は側突ａの燃焼排気ガスＣ
が接した分だけ遅くなるため、結果的に主炎すの燃焼温
度は低くなり、しかも、側突口２の分だけ全体の炎口面
積が増大するので、Ｆｔｒｉは軽（なり、−次空気浸を
増すために、Ｎ Ｏｘを低減せしめる。しかし、主炎す
にＥＥＩ炎ｄの燃焼排気ガスＣが合流し、１ｉＪｉ！焼
排気ガスＣが主炎すの加熱に供されるので、主炎すの燃
焼温度は低下してもその熱量は主炎す本来の熱量と略同
−に維持されるために熱効率は低下しないものである。In the above configuration, in the embodiment of the invention set forth in claim 1, in the stove burner, the side protrusion dI1 formed in the side protrusion opening 2 stepped on the peripheral wall of the reduced diameter neck portion 5a of the burner body 5.
7) The combustion exhaust gas C reliably passes through the F plane of the annular convex portion 7 of the burner body 5 by taking into account the drafting effect of the main flame on the main flame formed at the main flame port 1 at the upper part. Since the main flame b is guided and comes into contact with the combustion exhaust gas C of the side impact a, the combustion speed of the main flame b is
As a result, the combustion temperature of the main flame becomes lower, and the overall flame opening area increases by the amount of the side outlet 2, so Ftri becomes lighter (and the -secondary air In order to increase the immersion, NOx is reduced.However, the combustion exhaust gas C of the EEI flame d joins the main flame, and the combustion exhaust gas C from the EEI flame d is used to heat the main flame. Even if the combustion temperature of the main flame decreases, the amount of heat remains approximately the same as the original amount of heat in the main flame, so thermal efficiency does not decrease.
次に、請求項２記載の発明の実施例にあってし戴バーナ
ボディ５の細径首部５ａの周壁に設けた側突口２に形成
される側突ａは、保炎部材３によって側突ａがふらつく
のを防いで支足化するとともに噴出ガスの拡散、緩和等
によって幅広の側突ａを形成し相隣接する側突ａを相互
に連結して弱い環状側突を形成し、その燃焼排気ガスＣ
の主炎す部への誘導を特徴とする
請求項３記載の発明の実施例は、保炎部材３として、帯
状の金網３ａを側突口２の外面に巻きつけ固定したので
、側突口２から噴出する混合ガスは金ｗ４３ａで拡散さ
れ、しかも、その噴出速度は緩和されるために幅広の側
突ａとなって相隣接する側突ａを相互に連結して弱い環
状側突を特徴する請求項４記戦の発明の実施例は、保炎
部材３として、側突口２の外面上部に環状の傘３ｈを突
設したので、側突口２に横向きに形成される側突ａの上
部が傘３ｂに接触してその勢いが抑制されるために幅広
の側突ａとなって相隣接する側突ａを相互に連結して弱
い環状側突を特徴する
請求項５記載の発明の実施例は、上部を開口した環状の
邪魔板３Ｃを側突口２の外面に設けたので、側突口２か
ら横向きに噴出する混合ガスは邪魔板３ｃに当たって上
部開口から斜め上方に流れるために、混合ガスは拡散さ
れ、しかも、噴出速度は緩和され、側突も抑制されるか
ら幅広の側突となって、相隣接する側突ａを相互に連結
して弱い環状側突を形成するものである。Next, in the embodiment of the invention as claimed in claim 2, the side protrusion a formed in the side protrusion 2 provided in the peripheral wall of the narrow diameter neck portion 5a of the burner body 5 is prevented from being side protruded by the flame stabilizing member 3. It prevents a from wobbling and becomes a support, and by diffusion and relaxation of ejected gas, a wide side protrusion a is formed, and adjacent side protrusions a are interconnected to form a weak annular side protrusion, and its combustion Exhaust gas C
In the embodiment of the invention according to claim 3, which is characterized by guiding the flame to the main flame part, a band-shaped wire mesh 3a is wrapped around the outer surface of the side opening 2 and fixed as the flame stabilizing member 3. The mixed gas ejected from 2 is diffused by the gold w43a, and the ejection speed is moderated, resulting in a wide side protrusion a, which interconnects adjacent side protrusions a to form a weak annular side protrusion. In the embodiment of the invention of claim 4, an annular umbrella 3h is provided as the flame stabilizing member 3 on the upper outer surface of the side aperture 2, so that the side aperture a formed laterally on the side aperture 2 The invention according to claim 5, wherein the upper part of the umbrella 3b contacts the umbrella 3b and its momentum is suppressed, thereby forming a wide side protrusion a, and connecting adjacent side protrusions a to each other to form a weak annular side protrusion. In the embodiment, an annular baffle plate 3C with an open top is provided on the outer surface of the side port 2, so that the mixed gas jetting out sideways from the side port 2 hits the baffle plate 3c and flows obliquely upward from the top opening. Then, the mixed gas is diffused, the ejection speed is moderated, and the side bumps are suppressed, resulting in a wide side bump, and the adjacent side bumps a are interconnected to form a weak annular side bump. It is something.
前記実施例において、請求項３記載の発明の保炎部材３
として金１１１３ａを用いた場合の実験結果を示すと表
１のとおりであった。In the embodiment, the flame stabilizing member 3 of the invention according to claim 3
Table 1 shows the experimental results when gold 1113a was used as the material.
表１
表１によれば、側突口２を設けたものはＮＯｘが３５％
〜４０％少なくなっている。これは、側突口２に形成さ
れる側突ａの燃焼排気ガスの主炎すへの接触による主炎
すの燃焼速度の遅延と、炎口面積が増大したことによる
負荷の軽減で−次空気量が増えたためである。Table 1 According to Table 1, the NOx level is 35% for the model with side port 2.
~40% less. This is due to the delay in the combustion speed of the main flame due to the contact of the combustion exhaust gas from the side abutment a formed at the side aperture 2 to the main flame, and the reduction of the load due to the increase in the area of the flame aperture. This is because the amount of air has increased.
この発明は、以上説明したように、請求項１記載の発明
は、主炎部に側突の燃焼排気ガスが接するために、主炎
の燃焼速度はそれだけ遅くなりその温度は低下し、かつ
、側突口の分だけ全体の炎口面積が増大することによる
負荷の軽減で一次空気量が増えるためにＮＯｘの発生量
は従来のバーナに比べ著しく低減する。また、主炎に側
突の燃焼排気ガスが合流し加熱に供されるため、主炎の
温度は低下してもその熱量は主炎本来の熱量に維持され
、熱効率は低下しない。As explained above, in the invention according to claim 1, since the combustion exhaust gas of the side collision comes into contact with the main flame part, the combustion speed of the main flame is correspondingly slowed and its temperature is lowered, and The amount of NOx generated is significantly reduced compared to conventional burners because the load is reduced and the amount of primary air is increased due to the increase in the overall burner area by the amount of side ports. Further, since the combustion exhaust gas from the side collision joins the main flame and is used for heating, even if the temperature of the main flame decreases, the amount of heat is maintained at the original amount of heat of the main flame, and thermal efficiency does not decrease.
請求項２記載の発明及び請求項２記載の発明を技術的に
限定して具体化した請求項３〜５記載の発明にあっては
、側突口に金網、傘、邪魔板等の保炎部材を設けたので
、側突口から噴出する混合ガスの噴出速度の緩和、拡散
、側突の抑制等によって側突を安定化しその燃焼排気ガ
スの主炎部への誘導を確実とするとともに、相隣接する
側突の連結効果をも高める。In the invention according to claim 2 and the invention according to claims 3 to 5, which are embodied by technically limiting the invention according to claim 2, a flame-holding device such as a wire mesh, an umbrella, a baffle plate, etc. is provided at the side opening. Since the member is provided, side collisions are stabilized by slowing down the jetting speed of the mixed gas jetting out from the side jetting port, spreading, suppressing side collisions, etc., and ensuring that the combustion exhaust gas is guided to the main flame part. It also enhances the effect of connecting adjacent side collisions.
また、主炎口の下部に側突口を設けるだけという極めて
筒車な構造で所期の目的が達成しうるから、コスト的に
も有利である。Furthermore, since the desired purpose can be achieved with a very simple structure in which only a side protrusion is provided below the main flame aperture, it is advantageous in terms of cost.
なお、実施例のように、バーナボディの細径首部に側突
口を設けると、バーナボディとバーナキャップの上端外
縁に形成せる環状凸部で、該側突口が完全に覆われるた
め、側突日ぺの煮こぼれ等の流入を防止する。Note that when a side protrusion is provided in the small diameter neck of the burner body as in the embodiment, the side protrusion is completely covered by the annular convex portion formed on the outer edge of the upper end of the burner body and burner cap. Prevent the influx of boiled-over water, etc.
図面はこの発明によるＮＯｘ低減バーナの実施例を示し
たもので、第１図は請求項３記載の発明の一実施例を示
した一部切断正面図、第２図は同平面図、第３図は請求
項４記載の発明の一実施例を示した要部の一部切断正面
図、第４図は同平面図、第５図は請求項５記載の発明の
一実施例を示した要部の一部切断正面図である。
■・・・主炎口、２・・・側突口、ａ・・・側突、ｂ・
・・主炎、Ｃ・・・燃焼排気ガス、３・・・保炎部材、
３ａ・・・金網、３ｂ・・・傘、３ｃ・・・邪魔板。The drawings show an embodiment of the NOx reduction burner according to the present invention, and FIG. 1 is a partially cutaway front view showing an embodiment of the invention according to claim 3, FIG. The figure is a partially cutaway front view of essential parts showing an embodiment of the invention as claimed in claim 4, FIG. 4 is a plan view of the same, and FIG. It is a partially cutaway front view of the section. ■...Main flame opening, 2...Side protrusion, a...Side protrusion, b.
...Main flame, C...Combustion exhaust gas, 3...Flame stabilizing member,
3a...wire mesh, 3b...umbrella, 3c...baffle board.
Claims (1)
副炎口（２）を、副炎口（２）に形成される副炎（ａ）
の燃焼排気ガス（ｃ）が主炎口（１）に形成される主炎
（ｂ）部に導かれて接するように配置せしめたことを特
徴とするＮＯｘ低減バーナ。 ［２］副炎口（２）に保炎部材（３）を設けた請求項１
記載のＮＯｘ低減バーナ。 ［３］保炎部材（３）として副炎口（２）の外面に金網
（３ａ）を張設した請求項２記載のＮＯｘ低減バーナ。 ［４］保炎部材（３）として副炎口（２）の外面上部に
傘（３ｂ）を突設した請求項２記載のＮＯｘ低減バーナ
。 ［５］保炎部材（３）として副炎口（２）の外面に邪魔
板（３ｃ）を設けた請求項２記載のＮＯｘ低減バーナ。[Scope of Claims] [1] A main flame port (1) and a sub-flame port (2) provided at the lower part of the main flame port (1). a)
A NOx reduction burner characterized in that the combustion exhaust gas (c) is guided to and comes into contact with a main flame (b) portion formed in a main flame port (1). [2] Claim 1 in which a flame stabilizing member (3) is provided at the auxiliary flame port (2).
The NOx reduction burner described. [3] The NOx reduction burner according to claim 2, wherein a wire mesh (3a) is stretched over the outer surface of the auxiliary flame port (2) as the flame stabilizing member (3). [4] The NOx reduction burner according to claim 2, wherein an umbrella (3b) is provided as the flame stabilizing member (3) to protrude from the upper outer surface of the auxiliary flame port (2). [5] The NOx reduction burner according to claim 2, wherein a baffle plate (3c) is provided on the outer surface of the auxiliary flame port (2) as the flame stabilizing member (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1280844A JP2781926B2 (en) | 1989-10-27 | 1989-10-27 | NOx reduction burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1280844A JP2781926B2 (en) | 1989-10-27 | 1989-10-27 | NOx reduction burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03144206A true JPH03144206A (en) | 1991-06-19 |
| JP2781926B2 JP2781926B2 (en) | 1998-07-30 |
Family
ID=17630771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1280844A Expired - Fee Related JP2781926B2 (en) | 1989-10-27 | 1989-10-27 | NOx reduction burner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2781926B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6322354B1 (en) * | 2000-07-17 | 2001-11-27 | Wolf Appliance Company, Llc | Stacked dual gas burner |
| US8535052B2 (en) * | 2008-08-11 | 2013-09-17 | General Electric Company | Cap for a gas burner |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55102809A (en) * | 1979-01-31 | 1980-08-06 | Matsushita Electric Ind Co Ltd | Burner |
| JPS5919845U (en) * | 1982-07-28 | 1984-02-07 | アイジ−工業株式会社 | mounting hardware |
| JPS6184330U (en) * | 1984-11-06 | 1986-06-03 |
-
1989
- 1989-10-27 JP JP1280844A patent/JP2781926B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55102809A (en) * | 1979-01-31 | 1980-08-06 | Matsushita Electric Ind Co Ltd | Burner |
| JPS5919845U (en) * | 1982-07-28 | 1984-02-07 | アイジ−工業株式会社 | mounting hardware |
| JPS6184330U (en) * | 1984-11-06 | 1986-06-03 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6322354B1 (en) * | 2000-07-17 | 2001-11-27 | Wolf Appliance Company, Llc | Stacked dual gas burner |
| US8535052B2 (en) * | 2008-08-11 | 2013-09-17 | General Electric Company | Cap for a gas burner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2781926B2 (en) | 1998-07-30 |
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