JPS59124811U - Low NOx combustion boiler - Google Patents

Low NOx combustion boiler

Info

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
Application number
JP1551883U
Other languages
Japanese (ja)
Other versions
JPH0229369Y2 (en
Inventor
清 楢戸
紀夫 嵐
茂 小豆畑
徹 稲田
憲一 相馬
啓信 小林
大塚　馨象
孝夫 菱沼
政井　忠久
Original Assignee
株式会社日立製作所
バブコツク日立株式会社
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 株式会社日立製作所, バブコツク日立株式会社 filed Critical 株式会社日立製作所
Priority to JP1551883U priority Critical patent/JPS59124811U/en
Publication of JPS59124811U publication Critical patent/JPS59124811U/en
Application granted granted Critical
Publication of JPH0229369Y2 publication Critical patent/JPH0229369Y2/ja
Granted legal-status Critical Current

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

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

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)

【実用新案登録請求の範囲】 微粉炭燃焼ボイラ内で燃焼ガスの流れ方向に対し、最下
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.
JP1551883U 1983-02-07 1983-02-07 Low NOx combustion boiler Granted JPS59124811U (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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