JP3055843B2 - Surface combustion burner device - Google Patents
Surface combustion burner deviceInfo
- Publication number
- JP3055843B2 JP3055843B2 JP4348272A JP34827292A JP3055843B2 JP 3055843 B2 JP3055843 B2 JP 3055843B2 JP 4348272 A JP4348272 A JP 4348272A JP 34827292 A JP34827292 A JP 34827292A JP 3055843 B2 JP3055843 B2 JP 3055843B2
- Authority
- JP
- Japan
- Prior art keywords
- flame
- combustion burner
- premixed gas
- burner
- flame holding
- 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
- Gas Burners (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は表面燃焼バーナ装置に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface combustion burner device.
【０００２】[0002]
【従来技術と課題】従来の表面燃焼バーナは、バーナの
面積負荷に上限があるため、燃焼量の増大がバーナ面積
の増大に直接関与すると共に予混合気が一系統供給のた
め、空気比の変動により、ＮＯｘ値が大きく変化し、低
ＮＯｘ調整が困難であり、更に、単一面保炎であるため
設置炉との共鳴を生じやすい。2. Description of the Related Art Conventional surface combustion burners have an upper limit in the area load of the burner. Therefore, an increase in the amount of combustion is directly related to an increase in the burner area, and a premixed gas is supplied to one system, so that the air ratio is low. Due to the fluctuation, the NOx value greatly changes, it is difficult to adjust the low NOx, and furthermore, since it is a single-sided flame holding, resonance with the installed furnace tends to occur.
【０００３】[0003]
【課題を解決する手段】前記課題を解決するために、本
発明は、バ−ナ燃焼筒の先端部に、表面燃焼バーナの面
保炎部を形成し、該面保炎部周囲に噴流火炎を形成する
予混合気噴出部を形成したこと特徴とするものである。
又、本発明は、面保炎部をバ−ナ燃焼筒の先端部から後
退させて形成したことを特徴とするものであり、又、本
発明は、予混合気噴出部を多数の炎孔から形成したこと
を特徴とするものであり、又、本発明は、予混合気噴出
部をスリット状に構成したことを特徴とするものであ
り、又、本発明は、スリット状に盲部を構成したことを
特徴とするものであり、又、本発明は、面保炎部と予混
合気噴出部とに供給する空気比を夫々別設定としたこと
を特徴とするものである。In order to solve the above-mentioned problems, the present invention is to form a surface flame holding portion of a surface combustion burner at the tip of a burner combustion cylinder, and to form a jet flame around the surface flame holding portion. And a premixed gas ejection portion for forming the airflow is formed.
Further, the present invention is characterized in that the surface flame holding portion is formed by retreating from the front end portion of the burner combustion cylinder. The present invention is characterized in that the premixed gas ejection portion is configured in a slit shape, and the present invention is characterized in that a blind portion is formed in a slit shape. The present invention is characterized in that the air ratio to be supplied to the surface flame holding section and the premixed gas ejection section is set separately from each other.
【０００４】[0004]
【作用】面保炎部で火炎を発生すると同時に、予混合気
噴出部の下流側で噴流火炎を形成し、面保炎部の面負荷
を軽減する。かかる際、面保炎部と予混合保炎部での空
気比を別設定とすることにより、濃淡燃焼を実行するこ
とができる。[Function] A flame is generated at the surface flame holding portion, and at the same time, a jet flame is formed downstream of the premixed gas jetting portion to reduce the surface load of the surface flame holding portion. At this time, by setting the air ratio in the surface flame preserving section and the premixed flame preserving section to be different from each other, it is possible to execute the lean combustion.
【０００５】[0005]
【実施例】符号１はバーナ燃焼筒を示し、２は面保炎部
を示す。前記バーナ燃焼筒１は、円筒であっても、角筒
であっもよい。前記面保炎部２の周囲には、噴流火炎３
を形成する予混合気噴出部４を形成する。前記面保炎部
２は、バ−ナ燃焼筒１から後退させて構成してもよく、
また、前記予混合気噴出部４は、分割燃焼が効果的に実
行できるように、多数の炎孔から構成してもよく、図の
ように、スリット状であってもよい。そして、スリット
状に構成した場合には、そのスリット状に盲部６を構成
して分割を図ってもよい。更に、前記予混合気噴出部４
と面保炎部２とに供給する予混合気の空気を異なる空気
比としてもよい。いま、面保炎部２に於いて、面火炎５
が形成されると同時にその周囲の予混合気噴出部４に於
いて、噴流火炎３を形成する。面保炎部２は、通常セラ
ミックス多孔体、金網、通気性のある金属マット等で構
成されており、面負荷が大きいが、噴流火炎３の形成に
より、面負荷が軽減される。かかる際、面保炎部２と予
混合気噴出部４とに供給する予混合気の空気比を異なら
せることにより、良好な濃淡燃焼を実行することができ
る。かかる濃淡燃焼と、そして面火炎５及び噴流火炎３
等の形成により、分割燃焼が実現でき、図３に示す通
り、ＮＯｘ低減効果を促進する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral 1 denotes a burner combustion cylinder, and 2 denotes a surface flame holding portion. The burner combustion cylinder 1 may be a cylinder or a square cylinder. A jet flame 3 is provided around the surface flame holding section 2.
Is formed. The surface flame holding section 2 may be configured to be retracted from the burner combustion cylinder 1.
Further, the premixed gas jetting section 4 may be constituted by a large number of flame holes so that divided combustion can be performed effectively, and may be slit-shaped as shown in the figure. And when it is configured in a slit shape, the blind portion 6 may be configured in the slit shape to achieve division. Further, the premixed gas ejection section 4
The air of the pre-mixed gas supplied to the surface flame holding unit 2 may have a different air ratio. Now, in the flame holding section 2, the face flame 5
Is formed, and at the same time, a jet flame 3 is formed in the surrounding premixed gas ejection portion 4. The surface flame holding portion 2 is usually made of a ceramic porous body, a wire mesh, a gas permeable metal mat, or the like, and has a large surface load. In such a case, by making the air ratio of the premixed gas supplied to the surface flame holding section 2 and the premixed gas jetting section 4 different, it is possible to execute favorable rich and light combustion. Such a lean burn and a face flame 5 and a jet flame 3
By the formation of the like, split combustion can be realized, and the NOx reduction effect is promoted as shown in FIG.
【０００６】[0006]
【発明の効果】本発明は以上の通りであるので、次の諸
効果を生じる。面保炎部の面負荷の軽減によりバーナ
自体の小型化、バーナの延命を図かることができる。
予混合気噴出部の構成によりバーナの圧力損失が低減さ
れる。火炎が面火炎と噴流火炎に分割されるため、Ｎ
Ｏｘ低減効果が一層助長される。空気比を変化させる
ことによりＮＯｘ排出特性が一層良好となる。単一面
燃焼でないため、炉との共鳴が避けられ、低騒音とな
る。As described above, the present invention has the following effects. By reducing the surface load of the surface flame holding portion, it is possible to reduce the size of the burner itself and extend the life of the burner.
The pressure loss of the burner is reduced by the configuration of the premixed gas ejection section. Since the flame is divided into a face flame and a jet flame, N
Ox reduction effect is further promoted. By changing the air ratio, the NOx emission characteristics are further improved. Since it is not a single-sided combustion, resonance with the furnace is avoided, resulting in low noise.
【図１】本発明の断面的説明図である。FIG. 1 is a sectional explanatory view of the present invention.
【図２】本発明の断面的説明図である。FIG. 2 is a sectional explanatory view of the present invention.
【図３】Ａ−Ａ線断面的説明図である。FIG. 3 is an explanatory sectional view taken along line AA.
【図４】Ｂ−Ｂ線断面的説明図である。FIG. 4 is a sectional view taken along line BB.
【図５】本発明の他の実施例ずである。FIG. 5 is another embodiment of the present invention.
【図６】本発明のＮＯｘ性能図である。FIG. 6 is a NOx performance chart of the present invention.
１ 表面燃料バーナ ２ 面保炎部 ３ 噴流火炎 ４ 予混合気噴出部 ５ 面火炎 ６ 盲部 DESCRIPTION OF SYMBOLS 1 Surface fuel burner 2 Surface flame holding part 3 Jet flame 4 Premixed gas injection part 5 Surface flame 6 Blind part
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) F23D 14/02 - 14/18 F23D 14/26 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) F23D 14/02-14/18 F23D 14/26
Claims (6)
ナの面保炎部を形成し、該面保炎部周囲に噴流火炎を形
成する予混合気噴出部を形成した表面燃焼バーナ装置。1. A surface combustion burner in which a surface flame holding portion of a surface combustion burner is formed at a tip end portion of a burner combustion cylinder, and a premixed gas ejection portion which forms a jet flame around the surface flame holding portion is formed. apparatus.
退させて形成した第１項記載の表面燃焼バ−ナ2. A surface combustion burner according to claim 1, wherein the surface flame holding portion is formed to be receded from a front end portion of the burner combustion cylinder.
た第１項記載の表面燃焼バ−ナ3. A surface combustion burner according to claim 1, wherein said premixed gas ejection portion is formed from a plurality of flame holes.
第１項記載の表面燃焼バ−ナ4. The surface combustion burner according to claim 1, wherein the premixed gas ejection portion is formed in a slit shape.
第４項記載の表面燃焼バ−ナ5. A surface combustion burner according to claim 1, wherein a blind portion is formed in a slit shape.
空気比を夫々別設定とした第１項記載の表面燃焼バーナ
装置。6. The surface combustion burner device according to claim 1, wherein an air ratio supplied to the surface flame holding section and the premixed gas ejection section is set separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4348272A JP3055843B2 (en) | 1992-12-28 | 1992-12-28 | Surface combustion burner device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4348272A JP3055843B2 (en) | 1992-12-28 | 1992-12-28 | Surface combustion burner device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07103427A JPH07103427A (en) | 1995-04-18 |
| JP3055843B2 true JP3055843B2 (en) | 2000-06-26 |
Family
ID=18395921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4348272A Expired - Lifetime JP3055843B2 (en) | 1992-12-28 | 1992-12-28 | Surface combustion burner device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3055843B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8413445B2 (en) * | 2007-05-11 | 2013-04-09 | General Electric Company | Method and system for porous flame holder for hydrogen and syngas combustion |
| JP6656942B2 (en) * | 2016-02-08 | 2020-03-04 | 三菱日立パワーシステムズ株式会社 | Ground flare, gasification facility, combined gasification combined cycle facility, and ground flare control method |
-
1992
- 1992-12-28 JP JP4348272A patent/JP3055843B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07103427A (en) | 1995-04-18 |
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