JPH0814516A - Combustion apparatus - Google Patents

Combustion apparatus

Info

Publication number
JPH0814516A
JPH0814516A JP14750994A JP14750994A JPH0814516A JP H0814516 A JPH0814516 A JP H0814516A JP 14750994 A JP14750994 A JP 14750994A JP 14750994 A JP14750994 A JP 14750994A JP H0814516 A JPH0814516 A JP H0814516A
Authority
JP
Japan
Prior art keywords
flame
burner
air
fuel mixture
fuel
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.)
Pending
Application number
JP14750994A
Other languages
Japanese (ja)
Inventor
Yoichi Kimura
洋一 木村
Koichi Kanezaki
幸一 金崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP14750994A priority Critical patent/JPH0814516A/en
Publication of JPH0814516A publication Critical patent/JPH0814516A/en
Pending legal-status Critical Current

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  • Gas Burners (AREA)
  • Spray-Type Burners (AREA)

Abstract

PURPOSE:To suppress combustion noise when NOx is reduced and to prevent vibrating combustion. CONSTITUTION:A plurality of first burners 8 and a plurality of second burners 12 are alternately provided in a burner case 16. A space 17 opened above is provided in the same width as that of a second burner port 14 between adjacent first burner port 10 and the port 14. Further, a mixture passage 18 for communicating a second mixture chamber 13 with the space 17 is provided at the side of the burner 12. Enriched mixture of excess fuel is supplied to the burner 8, and lean mixture to be injected from the port 10 is injected substantially at the same flowing velocity as that of the enriched mixture to be injected from the port 10 is injected from the space 17.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、ガス及び石油を気化さ
せたガスを燃焼する給湯器や暖房器などに用いられる低
NOx燃焼装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low NOx combustion device used for a water heater, a heater, etc., which burns gas and gas obtained by vaporizing petroleum.

【0002】[0002]

【従来の技術】従来この種の低NOx燃焼装置は、図3
に示すように、第一の炎口部1と第一の炎口部1に連通
する第一の混合気室2を有する第一のバーナ3と第二の
炎口部4と第二の炎口部4に連通する第二の混合気室5
を有する第二のバーナ6とを複数本交互に併設して燃焼
室7の内部に収め、第一のバーナ3には燃料と燃焼用の
空気とを混合した燃料過剰の濃混合気が、第二のバーナ
6には燃料と燃焼用の空気とを混合した空気過剰の希薄
混合気が供給され、それぞれ第一の炎口部1及び第二の
炎口部4より噴出して、第一の炎口部1では燃料過剰の
濃混合気が、第二の炎口部4より噴出している空気過剰
の希薄混合気を誘引しながら燃焼して酸素濃度の低い安
定した濃火炎を形成し、第二の炎口部4では空気過剰の
希薄混合気が第一の炎口部1の上に形成された濃火炎の
熱的影響を受けることによって燃焼してNOx濃度が低
い希薄火炎を形成して、燃焼室7の内部で全体として安
定した燃焼を実現してNOxの発生量を低減させてい
た。
2. Description of the Related Art Conventionally, a low NOx combustion device of this type is shown in FIG.
As shown in FIG. 1, a first burner 3 having a first flame opening portion 1 and a first mixture chamber 2 communicating with the first flame opening portion 1, a second flame opening portion 4, and a second flame. Second air-fuel mixture chamber 5 communicating with the mouth 4
And a plurality of second burners 6 each having the above are alternately placed side by side and housed inside the combustion chamber 7, and the first burner 3 contains a rich fuel-excess rich mixture of fuel and combustion air. The second burner 6 is supplied with a lean air-fuel mixture that is a mixture of fuel and combustion air and is jetted from the first flame opening 1 and the second flame opening 4 respectively, In the flame mouth portion 1, the rich fuel-rich mixture burns while attracting the lean air-fuel mixture ejected from the second flame mouth 4 to form a stable rich flame with low oxygen concentration, In the second flame port 4, the lean air-fuel mixture with excess air is burned by receiving the thermal influence of the rich flame formed on the first flame port 1 to form a lean flame having a low NOx concentration. As a result, stable combustion is realized as a whole inside the combustion chamber 7 to reduce the amount of NOx generated.

【0003】[0003]

【発明が解決しようとする課題】しかしながら上記の従
来の構成では、NOxの発生量を低減させようとすると
濃火炎の量を減らして希薄火炎の量を増やす必要があ
り、そうすると、第一の炎口部1の上に形成された濃火
炎の量が減り、第二の炎口部4より噴出する空気過剰の
希薄混合気の流速が増すことになりその結果、第一の炎
口部1で形成される酸素濃度の低い安定した濃火炎の火
炎基部が不安定になり、燃焼騒音の増加と振動燃焼の発
生原因となっていた。特に小型の燃焼装置では、遮音や
消音のためのスペースがなく、NOxの発生量の低減と
燃焼騒音の低減とは両立が困難であった。
However, in the above-mentioned conventional configuration, in order to reduce the amount of NOx produced, it is necessary to reduce the amount of rich flame and increase the amount of lean flame. The amount of rich flame formed on the mouth portion 1 is reduced, and the flow velocity of the lean air-fuel mixture jetted from the second flame outlet portion 4 is increased. As a result, at the first flame outlet portion 1. The flame base of a stable rich flame with a low oxygen concentration formed became unstable, causing an increase in combustion noise and the occurrence of oscillatory combustion. Particularly in a small-sized combustion device, there is no space for sound insulation and noise reduction, and it has been difficult to achieve both reduction of NOx generation amount and combustion noise.

【0004】本発明は上記課題を解決するもので、NO
xの発生量を低減した場合の燃焼騒音の抑制と振動燃焼
の防止を小型の燃焼装置でも容易な方法で実現すること
を目的としたものである。
The present invention solves the above-mentioned problems, and NO
It is an object of the present invention to realize the suppression of combustion noise and the prevention of oscillating combustion by a simple method even with a small combustion device when the amount of x generated is reduced.

【0005】[0005]

【課題を解決するための手段】本発明は上記目的を達成
するために、燃料と燃焼用の空気とを混合した燃料過剰
の濃混合気を噴出する第一の炎口部と前記第一の炎口部
に連通した第一の混合気室を有する第一のバーナと、燃
料と燃焼用の空気とを混合した空気過剰の希薄混合気を
第一のバーナよりも多量,かつ高速で噴出する第二の炎
口部と前記第二の炎口部に連通した第二の混合気室を有
する第二のバーナとを複数本交互に併設し、隣接する前
記第一の炎口部と前記第二の炎口部との間に上方に開口
した空間部を設け、前記第二のバーナに前記第二の混合
気室と前記空間部とを連通する混合気通路を備えたもの
である。
In order to achieve the above-mentioned object, the present invention provides a first flame nozzle for ejecting a rich air-fuel mixture containing a mixture of fuel and combustion air, and the first A first burner having a first air-fuel mixture chamber that communicates with the flame opening and a lean air-fuel mixture that mixes fuel and combustion air are ejected in a larger amount and at a higher speed than the first burner. A plurality of second burner portions and a second burner having a second air-fuel mixture chamber that communicates with the second flame outlet portion are alternately arranged, and the adjacent first flame outlet portion and the second A space portion opened upward is provided between the second flame burner portion and the second burner, and a mixture passage that connects the second mixture chamber and the space portion is provided in the second burner.

【0006】[0006]

【作用】本発明は上記手段により、隣接する第一の炎口
部と第二の炎口部との間に設けられた上方に開口した空
間部に第二のバーナに設けられた前記第二の混合気室と
前記空間部とを連通する混合気通路から空気過剰の希薄
混合気が前記空間部へ流入し、その後上方の開口部から
第二の炎口部より噴出する空気過剰の希薄混合気の流速
に比較して遅い流速で噴出する。
According to the present invention, by the above means, the above-mentioned second burner provided in the second burner is provided in the upwardly open space provided between the adjacent first flame mouth portion and second flame mouth portion. A lean air-fuel mixture that flows into the space from the air-fuel mixture passage that connects the air-fuel mixture chamber to the space, and then jets from the second flame mouth from the upper opening to the air-rich lean mixture. It jets at a flow velocity slower than the flow velocity of air.

【0007】第一の炎口部から噴出した燃料過剰の濃混
合気は、この第二の炎口部よりは流速の遅い空気過剰の
希薄混合気を誘引しながら燃焼して、従来の技術に比べ
て火炎基部を余り乱されることなく酸素濃度の低い濃火
炎を形成することができる。更に第二の炎口部では流速
の早い多量の空気過剰の希薄混合気が、第一の炎口部の
上に形成された濃火炎の熱的影響を従来通りに受けるこ
とによって燃焼し、NOx濃度が低い希薄火炎を形成す
る。
The rich fuel-rich air-fuel mixture ejected from the first flame nozzle burns while attracting a lean air-fuel mixture whose flow velocity is slower than that of the second flame nozzle, so that the conventional technique is used. In comparison, a rich flame with a low oxygen concentration can be formed without disturbing the flame base part too much. Further, in the second flame mouth portion, a large amount of lean air-fuel mixture with a high flow velocity is burned by receiving the thermal influence of the rich flame formed on the first flame mouth portion as usual, and NOx. Forms a lean flame with low concentration.

【0008】この濃火炎の火炎基部が安定する結果、従
来の技術に比べて燃焼騒音を同程度に維持しながら、振
動燃焼の防止にもつながり、全体としてNOxの発生量
の低減した小型の燃焼装置を実現する。
As a result of stabilization of the flame base of this rich flame, the combustion noise is maintained at the same level as in the prior art, and it also contributes to the prevention of oscillating combustion. Realize the device.

【0009】[0009]

【実施例】以下、本発明の実施例について、図面を参照
しながら説明する。図1および図2は本発明の燃焼装置
の実施例を示すもので、図1は実施例の燃焼装置のバー
ナ部の断面図である。
Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show an embodiment of a combustion apparatus of the present invention, and FIG. 1 is a sectional view of a burner portion of the combustion apparatus of the embodiment.

【0010】図1において、8は第一の混合気室9を内
包する第一のバーナーであり、第一のバーナー8の上面
には混合気を噴出する多数のスリットを設けて開口した
第一の炎口部10が構成され、第一のバーナー8の上流
側にはスロート部11が構成されている。12は第二の
混合気室13を内包する第二のバーナーであり、第二の
バーナー12の上面には混合気を噴出する多数のスリッ
トを設けて開口した第二の炎口部14が構成され、第二
のバーナー12の上流側にはスロート部15が構成され
ている。
In FIG. 1, reference numeral 8 is a first burner that encloses a first air-fuel mixture chamber 9, and the first burner 8 has an upper surface provided with a large number of slits for ejecting air-fuel mixture. Of the first burner 8, and a throat portion 11 is formed on the upstream side of the first burner 8. Reference numeral 12 is a second burner that encloses the second air-fuel mixture chamber 13, and a second flame port 14 is formed on the upper surface of the second burner 12 by providing a number of slits for ejecting the air-fuel mixture. The throat portion 15 is formed on the upstream side of the second burner 12.

【0011】この様な第一のバーナー8と第二のバーナ
ー12とをバーナケース16の内部に複数本交互に併設
して配置するとともに、隣接する前記第一の炎口部10
と前記第二の炎口部14との間には第二の炎口部14に
設けた混合気を噴出するスリット幅に略等しい幅で上方
に開口した空間部17を設け、さらに、第二のバーナ1
2の側面には第二の混合気室13と空間部17とを連通
する混合気通路18が設けてあり、全体としての燃焼部
19を構成している。
A plurality of such first burners 8 and second burners 12 are alternately arranged side by side inside the burner case 16, and the adjacent first flame mouth portions 10 are arranged.
And the second flame opening portion 14 are provided with a space portion 17 which is opened upward with a width substantially equal to the slit width for ejecting the air-fuel mixture provided in the second flame opening portion 14, and Burner 1
An air-fuel mixture passage 18 that connects the second air-fuel mixture chamber 13 and the space 17 is provided on the side surface of the second side, and constitutes a combustion unit 19 as a whole.

【0012】図2は上記燃焼部19により構成した本発
明の実施例の燃焼装置の全体構成を示す一部断面図であ
る。第一のバーナーのスロート部11、第二のバーナー
のスロート部15に対向して燃料を噴出するノズル2
0、21と燃料制御装置22とを備えた燃料通路23が
設けられている。また、第一のバーナーのスロート部1
1、第二のバーナーのスロート部15にはそれぞれのバ
ーナーに入る空気量の割合を調整するダンパー24、2
5が設けられている。バーナケース16には送風機26
が設けられ燃焼部に空気を供給する。27は制御装置で
燃料制御装置22を制御して燃焼量を制御するととも
に、燃焼に必要な最適空気量を燃焼部に供給するように
送風機26を制御するものである。28は熱交換器、2
9は排気筒である。
FIG. 2 is a partial sectional view showing the overall construction of the combustion apparatus of the embodiment of the present invention constituted by the combustion section 19. A nozzle 2 for ejecting fuel facing the throat portion 11 of the first burner and the throat portion 15 of the second burner.
A fuel passage 23 having 0, 21 and a fuel control device 22 is provided. Also, the throat part 1 of the first burner
1. The throat part 15 of the second burner has dampers 24, 2 for adjusting the ratio of the amount of air entering each burner.
5 are provided. A blower 26 is provided in the burner case 16.
Is provided to supply air to the combustion section. A control device 27 controls the fuel control device 22 to control the combustion amount, and also controls the blower 26 to supply the optimal air amount required for combustion to the combustion portion. 28 is a heat exchanger, 2
9 is an exhaust stack.

【0013】上記構成において、燃料は、燃料制御装置
22により制御され、燃料通路23を通りノズル20と
21から第一のバーナーのスロート部11、第二のバー
ナーのスロート部15に供給される。また、この燃料が
燃焼するのに必要な最適空気量が送風機26から燃焼部
19に供給され、ダンパー24、25を介して空気量の
割合を調整されて第一のバーナーのスロート部11、第
二のバーナーのスロート部15に入り、この燃料と空気
は第一の混合気室9、第二の混合気室13で混合して均
一化された後、それぞれ第一の炎口部10、第二の炎口
部14および空間17の上方とから噴出する。
In the above structure, the fuel is controlled by the fuel control device 22 and is supplied from the nozzles 20 and 21 through the fuel passage 23 to the throat portion 11 of the first burner and the throat portion 15 of the second burner. Further, the optimum air amount required for burning this fuel is supplied from the blower 26 to the combustion unit 19, and the ratio of the air amount is adjusted via the dampers 24 and 25 to adjust the throat unit 11 of the first burner to the first unit. After entering the throat section 15 of the second burner and mixing the fuel and air in the first air-fuel mixture chamber 9 and the second air-fuel mixture chamber 13 to make them uniform, the first flame mouth portion 10 and the first air outlet portion 10, respectively. It jets from above the second flame port 14 and the space 17.

【0014】燃焼時のNOxの発生量を低減するため
に、第一のバーナー8に供給される燃料は、全体の約2
5%、第二のバーナー12に供給される燃料は、全体の
約75%になるように予めノズル20と21の大きさが
調整され、第一の混合気室9内の混合気は空気過剰率
0.25〜0.5の燃料過剰の濃混合気、第二の混合気
室13内の混合気は空気過剰率1.8〜2の空気過剰の
希薄混合気となる空気量が供給されるようにダンパー2
4、25の大きさが調整されている。
In order to reduce the amount of NOx generated during combustion, the total amount of fuel supplied to the first burner 8 is about 2
The size of the nozzles 20 and 21 is adjusted in advance so that 5% of the fuel is supplied to the second burner 12 and about 75% of the total fuel, and the air-fuel mixture in the first air-fuel mixture chamber 9 has excess air. The rich air-fuel mixture having a ratio of 0.25 to 0.5 and the air-fuel mixture in the second air-fuel mixture chamber 13 are supplied with an air amount which becomes a lean air-fuel mixture having an air excess ratio of 1.8 to 2. So that the damper 2
The sizes of 4 and 25 are adjusted.

【0015】また、希薄混合気の一部は、隣接する第一
の炎口部10と第二の炎口部14との間に設けられた上
方に開口した空間部17に第二のバーナ12に設けられ
た第二の混合気室13と空間部17とを連通する混合気
通路18から流入し、その後上方の開口部から噴出す
る。
Further, a part of the lean air-fuel mixture has a second burner 12 in a space portion 17 which is provided between the first flame opening portion 10 and the second flame opening portion 14 which are adjacent to each other and which is opened upward. The second mixture gas chamber 13 and the space portion 17 are provided to communicate with each other, and flow out from the mixture gas passage 18, and then are ejected from the upper opening.

【0016】この時、第一の炎口部10から噴出する濃
混合気の流速は約0.5〜1m/s、第二の炎口部14
より噴出する空気過剰の希薄混合気の流速は約4〜5m
/sになるが、空間部17より噴出する空気過剰の希薄
混合気の流速は、第二の炎口部14より噴出する空気過
剰の希薄混合気の流速に比較して遅い流速約1〜1.5
m/sで噴出するように通気抵抗を設定する。
At this time, the flow velocity of the rich air-fuel mixture ejected from the first flame port 10 is about 0.5 to 1 m / s, and the second flame port 14
The flow velocity of the lean air-fuel mixture with excess air is about 4-5m
/ S, but the flow velocity of the lean air-fuel mixture jetted from the space 17 is slower than that of the lean air-fuel mixture jetted from the second flame port 14 about 1 to 1 .5
The ventilation resistance is set so that the air is ejected at m / s.

【0017】第一の炎口部10では、空間部17より噴
出する空気過剰の希薄混合気を燃焼用酸素の供給気体と
して誘引しながら燃焼して酸素濃度の低い安定した濃火
炎を形成するが、空間部17より噴出する空気過剰の希
薄混合気の流速が第一の炎口部10から噴出する濃混合
気の流速とほぼ等しいので、混合気の誘引作用が円滑に
行われる。そして、この空間部17からの希薄混合気は
第二の炎口部14より高速で噴出する空気過剰の希薄混
合気の影響を緩和するので、濃火炎の火炎基部が不安定
になるのを防止できる。第二の炎口部14より噴出する
空気過剰の希薄混合気は、この濃火炎の熱的影響を従来
通りに受けることによって適正な火炎形成の雰囲気温度
を与えられ、安定した火炎面を形成して燃焼し、NOx
濃度が低い希薄火炎を形成する。
In the first flame port portion 10, the lean air-fuel mixture ejected from the space portion 17 is burned while attracting it as a supply gas of combustion oxygen to form a stable rich flame having a low oxygen concentration. Since the flow rate of the lean air-fuel mixture that is jetted from the space portion 17 is substantially equal to the flow rate of the rich air-fuel mixture that is jetted from the first flame mouth portion 10, the attraction action of the air-fuel mixture is smoothly performed. Then, the lean air-fuel mixture from this space portion 17 alleviates the influence of the lean air-fuel mixture that is jetted at a high speed from the second flame port portion 14, so that the flame base portion of the rich flame is prevented from becoming unstable. it can. The lean air-fuel mixture ejected from the second flame port 14 is given the thermal effect of this rich flame in the conventional manner to give an appropriate flame forming atmosphere temperature to form a stable flame surface. Burns, NOx
Forms a lean flame with low concentration.

【0018】ここで、希薄火炎の特性とNOxについて
説明する。サーマルNOxは燃焼反応帯の温度が低温で
あるほど発生量は低減する。よって空気を多量に含む希
薄な混合気ほほど熱容量が増加して火炎温度が低下し、
低NOx化が図れるが、一方混合気が希薄になる程火炎
の炎口への保持性能は不安定となり、火炎基部が炎口か
ら吹き飛び、不完全燃焼を発生する。
Here, the characteristics of the lean flame and NOx will be described. The generation amount of thermal NOx decreases as the temperature of the combustion reaction zone decreases. Therefore, the heat capacity increases and the flame temperature decreases as the air-fuel mixture contains a large amount of air.
Although the amount of NOx can be reduced, on the other hand, the leaner the air-fuel mixture, the more unstable the holding performance of the flame at the flame mouth, and the flame base blows off from the flame mouth, resulting in incomplete combustion.

【0019】よって上記構成において、NOxの発生量
をより低減するために第二の炎口部14より噴出する空
気過剰の希薄混合気の量を増加させても、第一の炎口部
10で燃焼する濃火炎の火炎基部を安定するのに必要な
希薄混合気は空間部17よりほぼ等しい速度で供給する
ことができ、この濃火炎の火炎基部が安定化することで
濃火炎と流速の早い希薄火炎間の干渉が防止できるの
で、燃焼装置を大きくしたり、消音・遮音効果のある部
品を追加することなくNOxの発生量の低減と燃焼騒音
の抑制・振動燃焼の防止とを実現することができる。
Therefore, in the above structure, even if the amount of the lean air-fuel mixture jetted from the second flame port 14 is increased in order to further reduce the amount of NOx generated, the first flame port 10 does. The lean air-fuel mixture necessary for stabilizing the flame base of the burning rich flame can be supplied from the space portion 17 at a substantially equal speed, and the rich flame and the fast flow velocity can be obtained by stabilizing the flame base of the rich flame. Since interference between lean flames can be prevented, it is possible to reduce the amount of NOx generated, suppress combustion noise, and prevent oscillating combustion without increasing the size of the combustion device or adding parts with noise reduction and sound insulation effects. You can

【0020】[0020]

【発明の効果】以上の説明から明らかのように本発明の
燃焼装置によれば、次の効果が得られる。第一と第二の
両バーナの間に第二のバーナから漏出させた、第二のバ
ーナよりも低速化した希薄混合気を噴出する空間部を備
えることにより、第二のバーナによる希薄混合気の割合
を大きくして、第一のバーナの燃焼安定化を図りなが
ら、全NOx発生量を低減できる。
As is apparent from the above description, according to the combustion apparatus of the present invention, the following effects can be obtained. A lean air-fuel mixture produced by the second burner is provided between the first and second burners by providing a space portion for ejecting the lean air-fuel mixture leaked from the second burner and having a speed lower than that of the second burner. It is possible to reduce the total amount of NOx generated while increasing the ratio of (1) to stabilize combustion of the first burner.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例における燃焼装置のバーナ部の
断面図
FIG. 1 is a sectional view of a burner portion of a combustion apparatus according to an embodiment of the present invention.

【図2】同装置の全体構成を示す一部断面図FIG. 2 is a partial cross-sectional view showing the overall configuration of the device.

【図3】従来の燃焼装置のバーナ部の断面図FIG. 3 is a sectional view of a burner portion of a conventional combustion device.

【符号の説明】[Explanation of symbols]

8 第一のバーナー 9 第一の混合気室 10 第一の炎口部 11 第一のバーナーのスロート部 12 第二のバーナー 13 第二の混合気室 14 第二の炎口部 15 第二のバーナーのスロート部 16 バーナケース 17 空間 18 混合気通路 20、21 ノズル 22 燃料制御装置 24、25 ダンパー 26 送風機 27 制御装置 8 1st burner 9 1st air-fuel mixture chamber 10 1st flame mouth part 11 1st burner throat part 12 2nd burner 13 2nd air-fuel mixture chamber 14 2nd flame mouth part 15 2nd Throat part of burner 16 Burner case 17 Space 18 Mixture passage 20, 21 Nozzle 22 Fuel control device 24, 25 Damper 26 Blower 27 Control device

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】燃料と燃焼用の空気とを混合した燃料過剰
の濃混合気を噴出する第一の炎口部と前記第一の炎口部
に連通した第一の混合気室とを有する第一のバーナと、
燃料と燃焼用の空気とを混合した空気過剰の希薄混合気
を第一のバーナよりも多量,かつ高速で噴出する第二の
炎口部と前記第二の炎口部に連通した第二の混合気室と
を有する第二のバーナとを複数本交互に併設し、隣接す
る前記第一の炎口部と前記第二の炎口部との間に上方に
開口するように設けた空間部と、前記第二のバーナに前
記第二の混合気室と前記空間部とを連通する混合気通路
を備えた燃焼装置。
1. A first flame mouth portion for ejecting a rich air-fuel mixture containing excess fuel, which is a mixture of fuel and combustion air, and a first air-fuel mixture chamber communicating with the first flame mouth portion. The first burner,
A second flame port that is a mixture of fuel and combustion air and is jetted at a higher speed and at a higher speed than the first burner, and a second flame port that communicates with the second flame port. A plurality of second burners having an air-fuel mixture chamber are alternately arranged side by side, and a space portion provided so as to open upward between the adjacent first flame mouth portion and the second flame mouth portion. And a mixture passage that connects the second mixture chamber and the space to the second burner.
JP14750994A 1994-06-29 1994-06-29 Combustion apparatus Pending JPH0814516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14750994A JPH0814516A (en) 1994-06-29 1994-06-29 Combustion apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14750994A JPH0814516A (en) 1994-06-29 1994-06-29 Combustion apparatus

Publications (1)

Publication Number Publication Date
JPH0814516A true JPH0814516A (en) 1996-01-19

Family

ID=15431971

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14750994A Pending JPH0814516A (en) 1994-06-29 1994-06-29 Combustion apparatus

Country Status (1)

Country Link
JP (1) JPH0814516A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110230813A (en) * 2019-05-31 2019-09-13 广东万家乐燃气具有限公司 Spliced low NO fire row, low NO and gas and hot water equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110230813A (en) * 2019-05-31 2019-09-13 广东万家乐燃气具有限公司 Spliced low NO fire row, low NO and gas and hot water equipment

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