JPS59124811U - Low NOx combustion boiler - Google Patents
Low NOx combustion boilerInfo
- Publication number
- JPS59124811U JPS59124811U JP1551883U JP1551883U JPS59124811U JP S59124811 U JPS59124811 U JP S59124811U JP 1551883 U JP1551883 U JP 1551883U JP 1551883 U JP1551883 U JP 1551883U JP S59124811 U JPS59124811 U JP S59124811U
- Authority
- JP
- Japan
- Prior art keywords
- air
- combustion
- pulverized coal
- combustion boiler
- low nox
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は本考案の低NOxバーナの断面図、第2図、第
3図は第1図のバーナの特性図、第4図は低空気比領域
でのNOxと還元性物質の一つであるNH3の生成特性
図、第5図はFuel NOxの内訳は図、第6図は本
考案の全体構成図であ祝9・・・主バーナ、〜10・・
・副バーナ、11・・・空気ノズル、12・・・−次燃
料と一次空気の混合流、13・・・二次燃料と二次空気
の混合流。
’<l 、 。
1.θ i、t t。
−仝i
−(イ)−一の−一つ
21.3 1.4 1.s
〆λ比Figure 1 is a cross-sectional view of the low NOx burner of the present invention, Figures 2 and 3 are characteristic diagrams of the burner in Figure 1, and Figure 4 shows the relationship between NOx and one of the reducing substances in the low air ratio region. A certain NH3 production characteristic diagram, Figure 5 shows the breakdown of Fuel NOx, and Figure 6 shows the overall configuration of the present invention.
- Secondary burner, 11...Air nozzle, 12...Mixed flow of secondary fuel and primary air, 13...Mixed flow of secondary fuel and secondary air. '<l,. 1. θ i, t t. -仝i -(I)-一の-一121.3 1.4 1. s 〆λ ratio
Claims (1)
流側に位置させた複数個の主バーナ、中−段に訣けた複
数個の副バーナ、さらに上流に燃焼空気を火炉内に噴出
させる複数個の空気ノズルから成り、前記主バーナで生
成したNOxを前記副バーナで生成した還元性物質で還
元し、最終段で噴出する空気により未燃分を燃焼させる
ものにおいて、 前記主バーナとして、同心状であって、その中心部は微
粉炭と一次空気の供給ノズル、これに隣接する外周には
旋回羽根付きの微粉炭と二次空気の供給ノズル、さらに
、その外周には燃焼用空気のみを噴出するノズルから構
成されることを特徴とする低NOx燃焼ボイラ。[Scope of claim for utility model registration] A plurality of main burners located on the most downstream side with respect to the flow direction of combustion gas in a pulverized coal combustion boiler, a plurality of auxiliary burners placed in the middle stage, and further upstream It consists of a plurality of air nozzles that eject combustion air into the furnace, reduces NOx generated by the main burner with reducing substances generated by the auxiliary burner, and burns unburned matter with the air ejected in the final stage. The main burner is concentric, with a supply nozzle for pulverized coal and primary air in the center, a supply nozzle for pulverized coal and secondary air with swirl vanes on the outer periphery adjacent to this, and further, A low NOx combustion boiler characterized by comprising a nozzle on its outer periphery that spouts only combustion air.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1551883U JPS59124811U (en) | 1983-02-07 | 1983-02-07 | Low NOx combustion boiler |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1551883U JPS59124811U (en) | 1983-02-07 | 1983-02-07 | Low NOx combustion boiler |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59124811U true JPS59124811U (en) | 1984-08-22 |
JPH0229369Y2 JPH0229369Y2 (en) | 1990-08-07 |
Family
ID=30146855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1551883U Granted JPS59124811U (en) | 1983-02-07 | 1983-02-07 | Low NOx combustion boiler |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59124811U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011074281A1 (en) * | 2009-12-17 | 2011-06-23 | 三菱重工業株式会社 | Solid fuel burner and solid fuel boiler |
US9869469B2 (en) | 2009-12-22 | 2018-01-16 | Mitsubishi Heavy Industries, Ltd. | Combustion burner and boiler including the same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS549502A (en) * | 1977-06-24 | 1979-01-24 | Pioneer Electronic Corp | Fm stereo democulator beat distortion eliminating circuit |
JPS5495021A (en) * | 1978-01-13 | 1979-07-27 | Babcock Hitachi Kk | Particle coal containing vent air treating low nox burner |
JPS5649803A (en) * | 1979-08-24 | 1981-05-06 | Babcock Hitachi Kk | Combustion method with low nitroxide |
-
1983
- 1983-02-07 JP JP1551883U patent/JPS59124811U/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS549502A (en) * | 1977-06-24 | 1979-01-24 | Pioneer Electronic Corp | Fm stereo democulator beat distortion eliminating circuit |
JPS5495021A (en) * | 1978-01-13 | 1979-07-27 | Babcock Hitachi Kk | Particle coal containing vent air treating low nox burner |
JPS5649803A (en) * | 1979-08-24 | 1981-05-06 | Babcock Hitachi Kk | Combustion method with low nitroxide |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011074281A1 (en) * | 2009-12-17 | 2011-06-23 | 三菱重工業株式会社 | Solid fuel burner and solid fuel boiler |
JP2011127836A (en) * | 2009-12-17 | 2011-06-30 | Mitsubishi Heavy Ind Ltd | Solid fuel burning burner and solid fuel burning boiler |
CN102333991A (en) * | 2009-12-17 | 2012-01-25 | 三菱重工业株式会社 | Solid fuel burner and solid fuel boiler |
CN103292321A (en) * | 2009-12-17 | 2013-09-11 | 三菱重工业株式会社 | Solid fuel burner and solid fuel boiler |
TWI449867B (en) * | 2009-12-17 | 2014-08-21 | Mitsubishi Heavy Ind Ltd | A solid fuel burner and a method of operating the same, and a solid fuel combustion boiler |
US10281142B2 (en) | 2009-12-17 | 2019-05-07 | Mitsubishi Heavy Industries, Ltd. | Solid-fuel-fired burner and solid-fuel-fired boiler |
US9869469B2 (en) | 2009-12-22 | 2018-01-16 | Mitsubishi Heavy Industries, Ltd. | Combustion burner and boiler including the same |
Also Published As
Publication number | Publication date |
---|---|
JPH0229369Y2 (en) | 1990-08-07 |
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