TR201100804T1 - Powder coal tangential ignition device for low NOx emission - Google Patents

Powder coal tangential ignition device for low NOx emission

Info

Publication number
TR201100804T1
TR201100804T1 TR2011/00804T TR201100804T TR201100804T1 TR 201100804 T1 TR201100804 T1 TR 201100804T1 TR 2011/00804 T TR2011/00804 T TR 2011/00804T TR 201100804 T TR201100804 T TR 201100804T TR 201100804 T1 TR201100804 T1 TR 201100804T1
Authority
TR
Turkey
Prior art keywords
air nozzles
combustion
furnace
nozzle
low nox
Prior art date
Application number
TR2011/00804T
Other languages
Turkish (tr)
Inventor
Jiangtao Li
Gongquan Liu
Nan Chen
Jianwen Zhang
Original Assignee
Shanghai Boiler Works 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 Shanghai Boiler Works Co. Ltd. filed Critical Shanghai Boiler Works Co. Ltd.
Publication of TR201100804T1 publication Critical patent/TR201100804T1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D1/00—Burners for combustion of pulverulent fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/08—Disposition of burners
    • F23C5/32—Disposition of burners to obtain rotating flames, i.e. flames moving helically or spirally
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00—Combustion apparatus characterised by arrangements for air supply
    • F23C7/02—Disposition of air supply not passing through burner

Abstract

Buluş, birincil hava nozulları ( 4 ) ve ikincil hava nozullarının ( 5 ) ana yanma bölgesinde ( 1 ) dört köşenin her birinde kademelendirildiği bir fırından meydana gelen, birincil hava nozullarının ( 4 ) düz uzanan eksenel hatları veya aynı düzlemlerde ikincil hava nozulları ( 5 ) fırının merkezinde farazi bir daireye teğetsel olarak yönelen, birincil hava nozulları ( 4 ) ile ikincil hava nozulları ( 5 ) üstündeki en az iki yanma havası nozulu ( 6 ) grubu fırındaki dört duvarın her birinde bulunan, bunun özelliği, yanma havası nozulunun gruplarından herhangi birinin dört yanma havası nozulundan ( 6 ) meydana gelmesi olan; yanma havası nozullarının ( 6 ) her grubu fırındaki her duvarın merkez hattından sapan dikey düz hatta bulunmakta olan. burada yanma havası nozullarının ( 6 ) düz uzanan eksenel hatları fırının merkezinde bulunan farazi bir daireye doğru teğetsel olarak yönlendirilen ve bunun çapı fırının genişliğinin 2/3'une eşit veya altında olan yanma cihazı teknik alanına giren düşük NOx (azot oksitleri) emisyonu için toz kömür teğetsel ateşleme cihazı ile ilgili olup, özelliği; Fırın ana yanma bölgesi ( 1 ), Redüksiyon bölgesi ( 2 ). Yanma bölgesi ( 3 ), Çok katmanlı birincil hava nozulu ( 4 ), ikincil hava nozulu ( 5 ), yanma nozulu ( 6 ) ve perdenin altından ( 7 ) meydana gelmesidir. Bu buluş düşük NOx emisyonu gerçekleştirebilir, uçan külde yüksek miktarda yanmamış karbon ve fırının ağzında yüksek baca gazı sıcaklığı ve hızı sapması sorununu çözebilir, bu sorunlar hava aşamalı yanma teknolojisi kullanıldığında sıklıkla görülür, aynı zamanda buluş yanan kömür ve yük varyasyonu çeşitliliğine karşı çalışırken ayarlama yapma olanağını genişletir.The invention consists of a furnace in which primary air nozzles (4) and secondary air nozzles (5) are staggered at each of four corners in the main combustion zone (1), the straight axial lines of primary air nozzles (4) or secondary air nozzles (5) in the same planes. At least two groups of combustion air nozzles (6) above the primary air nozzles (4) and the secondary air nozzles (5) oriented tangentially to a hypothetical circle in the center of the furnace, the feature of which is that any of the groups of combustion air nozzles have four groups of combustion air nozzles on each of the four walls. consisting of the combustion air nozzle (6); Each group of combustion air nozzles (6) is in a vertical straight line deviating from the center line of each wall in the furnace. where the straight axial lines of the combustion air nozzles (6) are directed tangentially towards a hypothetical circle located in the center of the furnace and whose diameter is equal to or below 2/3 of the width of the furnace, coal dust for low NOx (nitrogen oxides) emission entering the technical area of the combustion device. It is related to tangential firing device, its feature; Furnace main combustion zone (1), Reduction zone (2). The combustion zone (3) consists of the multi-layered primary air nozzle (4), the secondary air nozzle (5), the combustion nozzle (6) and the bottom of the curtain (7). This invention can achieve low NOx emissions, solve the problem of high amount of unburned carbon in flying ash and high flue gas temperature and velocity deviation at the mouth of the furnace, these problems are often seen when using air staged combustion technology, while the invention provides the ability to adjust when working against a variety of burning coal and load variation. expands.

TR2011/00804T 2009-06-30 2009-09-21 Powder coal tangential ignition device for low NOx emission TR201100804T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910054141A CN101598333B (en) 2009-06-30 2009-06-30 Low-nitrogen oxide discharging coal powder tangential combustion device

Publications (1)

Publication Number Publication Date
TR201100804T1 true TR201100804T1 (en) 2011-06-21

Family

ID=41419867

Family Applications (1)

Application Number Title Priority Date Filing Date
TR2011/00804T TR201100804T1 (en) 2009-06-30 2009-09-21 Powder coal tangential ignition device for low NOx emission

Country Status (5)

Country Link
CN (1) CN101598333B (en)
CL (1) CL2011000200A1 (en)
TR (1) TR201100804T1 (en)
WO (1) WO2011000136A1 (en)
ZA (1) ZA201100735B (en)

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CN101986028B (en) * 2010-11-18 2012-04-04 浙江大学 Low-NOx W-type flame boiler with dry bottom hopper and furnace bottom air supplies distributed in bielliptical shape
CN102012020B (en) * 2010-12-18 2013-05-08 华北电力大学（保定） Horizontal swinging wall type tangential circle combustion method and combustion device
CN102506419A (en) * 2011-09-30 2012-06-20 哈尔滨工业大学 Wall-type arranged two-stage burn-up air device
CN102721043B (en) * 2012-07-10 2014-12-17 烟台龙源电力技术股份有限公司 Pulverized coal fired boiler with wall-attachment secondary air and grid burning-out air
CN102901209A (en) * 2012-10-31 2013-01-30 山西蓝天环保设备有限公司 Large-sized pulverized-coal combustion hot water boiler
US9696030B2 (en) 2013-01-28 2017-07-04 General Electric Technology Gmbh Oxy-combustion coupled firing and recirculation system
CN103206716B (en) * 2013-02-01 2015-10-07 西安热工研究院有限公司 The low NO of many coals ecad xcombustion system
WO2014194855A1 (en) * 2013-06-08 2014-12-11 国家电网公司 Low-nitrogen oxide straight-through pulverized coal combustion apparatus applicable to lean coal-fired boiler
CN104061567A (en) * 2014-03-28 2014-09-24 广东电网公司电力科学研究院 Low-nitrogen modified large-scale power station boiler device and application method thereof
CN106110863B (en) * 2016-08-08 2018-12-04 中昊黑元化工研究设计院有限公司 A kind of boiler with tailed method of denitration
CN107620954B (en) * 2017-08-23 2019-07-12 清华大学 Pollutant emission control method in circle of contact pulverized coal firing boiler furnace

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CA1092897A (en) * 1977-09-16 1981-01-06 Arun K. Mehta Fuel firing method
JPH0356011U (en) * 1989-10-03 1991-05-29
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CN1873325B (en) * 2005-05-31 2013-05-29 巴布考克及威尔考克斯公司 Reoriented overheat air vent for reducing NO2 produced from coal powder burner
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Also Published As

Publication number Publication date
ZA201100735B (en) 2012-03-28
WO2011000136A1 (en) 2011-01-06
CL2011000200A1 (en) 2011-08-19
CN101598333B (en) 2012-09-26
CN101598333A (en) 2009-12-09

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