JP2862117B2 - Combustion furnace equipment - Google Patents
Combustion furnace equipmentInfo
- Publication number
- JP2862117B2 JP2862117B2 JP4227656A JP22765692A JP2862117B2 JP 2862117 B2 JP2862117 B2 JP 2862117B2 JP 4227656 A JP4227656 A JP 4227656A JP 22765692 A JP22765692 A JP 22765692A JP 2862117 B2 JP2862117 B2 JP 2862117B2
- Authority
- JP
- Japan
- Prior art keywords
- supply pipe
- furnace
- air supply
- combustion
- low
- 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
Landscapes
- Pre-Mixing And Non-Premixing Gas Burner (AREA)
- Gas Burners (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、燃焼炉装置に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion furnace apparatus.
【０００２】[0002]
【従来の技術】炉内に於いて浮遊火炎を形成する燃焼法
があるが（例えば米国特許第４３５７１３４号）、何れ
の場合にも、空気の噴出エネルギが大きいため、そのエ
ネルギによって、炉内燃焼ガスのみならず、燃料ガスが
伴流されてしまい、効果的な酸素濃度の低下が図かれ
ず、窒素酸化物の抑制を効果的に低減させることができ
なかった。2. Description of the Related Art There is a combustion method in which a floating flame is formed in a furnace (for example, US Pat. No. 4,357,134). Not only the gas but also the fuel gas was entrained, and the effective reduction in oxygen concentration was not achieved, and the suppression of nitrogen oxides could not be effectively reduced.
【０００３】[0003]
【発明が解決しようとする課題】炉内燃焼に際して、窒
素酸化物の発生をより抑制するために、効果的な緩慢燃
焼が実行されねばならない。このために、空気の噴出エ
ネルギによって、炉内燃焼ガスのみを伴流させる伴流域
を炉内につくらねばならない。In combustion in a furnace, effective slow combustion must be performed in order to further suppress the generation of nitrogen oxides. For this purpose, a wake area must be created in the furnace to allow only the combustion gas in the furnace to flow by the energy of the air jet.
【０００４】[0004]
【課題を解決するための手段】前記課題を解決するため
に、本発明は、炉内に燃焼用空気と共に燃料を噴出させ
て浮遊火炎を形成するようにした燃焼炉装置において、
バーナ軸に燃料供給管を設けた低温用空気供給管を炉内
に突出させて構成すると共に、前記低温用空気供給管の
外側に炉壁面に開口させた空気供給管を設け、この空気
供給管から空気を噴出させることで炉内に突出した前記
低温用空気供給管の外周近傍を燃焼ガスの伴流域とし、
低温用空気供給管と共に空気供給管から空気を炉内に噴
出させて燃焼を開始し、炉内が高温に達した際に、前記
空気供給管のみから空気を噴出させて燃焼を持続させる
ようにしたことを特徴とするものである。In order to solve the above-mentioned problems, the present invention provides a method in which fuel is injected into a furnace together with combustion air.
In a combustion furnace device that forms a floating flame by
A low-temperature air supply pipe with a fuel supply pipe on the burner shaft is installed inside the furnace.
And the low-temperature air supply pipe.
An air supply pipe opened to the furnace wall is provided on the outside, and this air
The above-mentioned projecting into the furnace by jetting air from the supply pipe
The vicinity of the outer periphery of the low-temperature air supply pipe is set as the wake area of the combustion gas,
Inject air into the furnace from the air supply pipe together with the low-temperature air supply pipe.
To start combustion, and when the furnace reaches a high temperature,
Sustain combustion by blowing air only from the air supply pipe
It is characterized by doing so.
【０００５】[0005]
【作用】燃焼ガスのみを伴流する燃焼ガス伴流域を特別
に構成したので、空気の噴出エネルギが強大でも、燃料
を伴流せず、従って効果的に酸素濃度を低下させること
ができ、窒素酸化物の生成を抑制することができる。[Function] Since the combustion gas wake area in which only the combustion gas flows is specially configured, even if the air ejection energy is large, the fuel does not wake, and therefore the oxygen concentration can be reduced effectively, and the nitrogen oxidation can be performed. The generation of a product can be suppressed.
【０００６】[0006]
【実施例】図はバーナの一例を示したものである。図に
於いて、１は低温用空気供給管であって、２はその中心
軸に設けた燃料供給管である。前記低温用空気供給管１
は、炉体壁面３に突出させて取着けるが、その突出度合
は、低温用空気供給管１の外周に、燃焼ガスのみを効果
的に伴流させる燃焼ガス伴流域４を形成するように突出
させる。更に、前記低温用空気供給管１の外側には、炉
体壁面３に開口させた空気供給口５を構成する。FIG. 1 shows an example of a burner. In the drawing, reference numeral 1 denotes a low-temperature air supply pipe, and reference numeral 2 denotes a fuel supply pipe provided on a central axis thereof. The low-temperature air supply pipe 1
Is attached to the furnace body wall 3 by projecting so as to form a combustion gas wake area 4 on the outer circumference of the low-temperature air supply pipe 1 where the combustion gas only flows effectively. Let it. Further, outside the low-temperature air supply pipe 1, an air supply port 5 opened to the furnace body wall surface 3 is formed.
【０００７】しかして、燃料管２から燃料ガスが低温用
空気供給管１内を流れる空気を伴って炉内に噴出する
と、炉内空間に於いて浮遊火炎６を形成する。同時に、
前記空気供給管５から燃焼用空気を噴出させると、その
噴出エネルギにより、前記燃焼ガス伴流域４で、炉内燃
焼ガスのみを伴流して、その酸素分圧を低下させなが
ら、前記浮遊火炎６に達して混合しながら、緩慢燃焼を
実行する。即ち、本発明は、燃焼ガスの伴流域４に於い
て、燃料ガスを伴流しないで、炉内燃焼ガスのみを伴流
して、効果的に酸素分圧を低下させ、それを燃焼に寄与
させるので、緩慢燃焼が良好に実行され、窒素酸化物の
生成を抑制するものである。炉内が高温に達した状態で
は、低温用空気供給管１への空気の供給をバタフライ弁
７を閉止して停止する。かかる状態では、空気供給管５
のみからの燃焼用空気によって燃焼が持続される。When the fuel gas is blown out of the fuel pipe 2 into the furnace together with the air flowing through the low-temperature air supply pipe 1, a floating flame 6 is formed in the furnace space. at the same time,
When the combustion air is ejected from the air supply pipe 5, only the combustion gas in the furnace is entrained in the combustion gas entrainment zone 4 by the energy of the ejection to lower the oxygen partial pressure. Perform slow burning while mixing to reach. That is, according to the present invention, in the wake area 4 of the combustion gas, the fuel gas is not wakened, but only the combustion gas in the furnace is waked, so that the oxygen partial pressure is effectively reduced and contributed to the combustion. Therefore, slow combustion is satisfactorily performed and the generation of nitrogen oxides is suppressed. When the temperature in the furnace reaches a high temperature, the supply of air to the low-temperature air supply pipe 1 is stopped by closing the butterfly valve 7. In such a state, the air supply pipe 5
Combustion is sustained by the combustion air from only.
【０００８】[0008]
【発明の効果】本発明は以上の通り、炉内に燃焼ガスの
みを伴流する特別の伴流域をつくり、かかる伴流域でつ
くった酸素濃度の低い燃焼用空気を燃焼に寄与させ、窒
素酸化物を減少させるという独特の効果を奏するもので
ある。As described above, according to the present invention, a special wake area in which only the combustion gas flows in the furnace is formed, and the combustion air having a low oxygen concentration created in the wake area contributes to the combustion and the nitrogen oxidation. It has the unique effect of reducing things.
【図１】本発明の縦断的説明図である。FIG. 1 is a vertical explanatory view of the present invention.
１ 低温用空気供給管 ２ 燃料供給管 ３ 炉体壁面 ４ 燃焼ガス伴流域 ５ 空気供給口 ６ 浮遊火炎 ７ バタフライ弁 DESCRIPTION OF SYMBOLS 1 Low temperature air supply pipe 2 Fuel supply pipe 3 Furnace body wall 4 Combustion gas wake area 5 Air supply port 6 Floating flame 7 Butterfly valve
Claims (1)
せて浮遊火炎を形成するようにした燃焼炉装置におい
て、バーナ軸に燃料供給管を設けた低温用空気供給管を
炉内に突出させて構成すると共に、前記低温用空気供給
管の外側に炉壁面に開口させた空気供給管を設け、この
空気供給管から空気を噴出させることで炉内に突出した
前記低温用空気供給管の外周近傍を燃焼ガスの伴流域と
し、低温用空気供給管と共に空気供給管から空気を炉内
に噴出させて燃焼を開始し、炉内が高温に達した際に、
前記空気供給管のみから空気を噴出させて燃焼を持続さ
せるようにしたことを特徴とする燃焼炉装置。A fuel is injected into a furnace together with combustion air.
In a combustion furnace device where a floating flame is formed
And a low-temperature air supply pipe with a fuel supply pipe on the burner shaft.
A low temperature air supply
An air supply pipe opened to the furnace wall was installed outside the pipe.
Protruded into the furnace by blowing air from the air supply pipe
The vicinity of the outer periphery of the low-temperature air supply pipe is a wake area of the combustion gas.
Air from the air supply pipe together with the low-temperature air supply pipe into the furnace.
To start combustion, and when the furnace reaches a high temperature,
Air is blown out only from the air supply pipe to sustain combustion
A combustion furnace device characterized in that it is made to perform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4227656A JP2862117B2 (en) | 1992-08-27 | 1992-08-27 | Combustion furnace equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4227656A JP2862117B2 (en) | 1992-08-27 | 1992-08-27 | Combustion furnace equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0735315A JPH0735315A (en) | 1995-02-07 |
| JP2862117B2 true JP2862117B2 (en) | 1999-02-24 |
Family
ID=16864284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4227656A Expired - Lifetime JP2862117B2 (en) | 1992-08-27 | 1992-08-27 | Combustion furnace equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2862117B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0423162D0 (en) | 2004-10-19 | 2004-11-24 | Graphic Packaging Int Inc | Fully enclosed carton |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5238612A (en) * | 1975-09-22 | 1977-03-25 | Kubota Ltd | Radial flow fan |
| JPS57127108U (en) * | 1981-12-23 | 1982-08-07 | ||
| JP3128229U (en) * | 2006-10-20 | 2006-12-28 | 株式会社大三 | Support material |
-
1992
- 1992-08-27 JP JP4227656A patent/JP2862117B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0735315A (en) | 1995-02-07 |
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