PH12018501503A1 - After-air port, and combustion device equipped with same - Google Patents

After-air port, and combustion device equipped with same

Info

Publication number
PH12018501503A1
PH12018501503A1 PH12018501503A PH12018501503A PH12018501503A1 PH 12018501503 A1 PH12018501503 A1 PH 12018501503A1 PH 12018501503 A PH12018501503 A PH 12018501503A PH 12018501503 A PH12018501503 A PH 12018501503A PH 12018501503 A1 PH12018501503 A1 PH 12018501503A1
Authority
PH
Philippines
Prior art keywords
air
primary
outside
air nozzle
nozzle
Prior art date
Application number
PH12018501503A
Inventor
Kenji Kiyama
Toshihiko Mine
Miki Shimogori
Kenichi Ochi
Koji Kuramashi
Akira Baba
Original Assignee
Mitsubishi Hitachi Power Sys
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 Mitsubishi Hitachi Power Sys filed Critical Mitsubishi Hitachi Power Sys
Publication of PH12018501503A1 publication Critical patent/PH12018501503A1/en

Links

Classifications

    • 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 
    • F23C99/00—Subject-matter not provided for in other groups of this subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel 
    • F23L9/02—Passages or apertures for delivering secondary air for completing combustion of fuel  by discharging the air above the fire

Abstract

An after-air port having two types of after-air with the properties of linearity and spreading, wherein, in order to maintain the penetration force of after-air jets sharing the linearity, an inside primary after-air nozzle (501) for supplying inside primary after-air is provided at the center within an opening so as to jet a linear flow, and an outside primary after-air nozzle (502) for supplying outside primary after-air is provided on the outside of the inside primary after-air nozzle (510) so as to jet a linear flow. A secondary after-air nozzle (14) for supplying secondary after-air is provided on the outside of the outside primary after-air nozzle (502). One or more secondary after-air guide vanes (15) having an inclination angle to the central axis of the after-air port are provided so that the secondary after-air can be horizontally deflected and supplied to the outlet of the secondary after-air nozzle (14). An adjusting member (301) for the amount of primary after-air supplied in the inside primary after-air nozzle (501) and/or an adjusting member (302) for the amount of outside primary after-air supplied in the outside primary after-air nozzle (502) are provided.
PH12018501503A 2016-01-20 2018-07-12 After-air port, and combustion device equipped with same PH12018501503A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016008777 2016-01-20
PCT/JP2016/085996 WO2017126240A1 (en) 2016-01-20 2016-12-05 After-air port, and combustion device equipped with same

Publications (1)

Publication Number Publication Date
PH12018501503A1 true PH12018501503A1 (en) 2019-03-25

Family

ID=59362031

Family Applications (1)

Application Number Title Priority Date Filing Date
PH12018501503A PH12018501503A1 (en) 2016-01-20 2018-07-12 After-air port, and combustion device equipped with same

Country Status (4)

Country Link
JP (1) JP6556871B2 (en)
PH (1) PH12018501503A1 (en)
TW (1) TWI640724B (en)
WO (1) WO2017126240A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6797714B2 (en) * 2017-02-22 2020-12-09 三菱パワー株式会社 Combustion device
JP7105707B2 (en) 2019-02-13 2022-07-25 三菱重工業株式会社 After-airport and combustion device equipped with the same
CN114183747B (en) * 2021-10-27 2023-11-03 中国大唐集团科学技术研究院有限公司火力发电技术研究院 Wall-based opposite-impact pulverized coal boiler burner burning loss prevention structure and method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4425855A (en) * 1983-03-04 1984-01-17 Combustion Engineering, Inc. Secondary air control damper arrangement
US5824275A (en) * 1992-12-29 1998-10-20 Combustion Engineering, Inc. Secondary and tertiary air nozzle for furnace apparatus
JP3308618B2 (en) * 1993-01-07 2002-07-29 バブコック日立株式会社 Low NOx combustion method and apparatus
JPH09112816A (en) * 1995-10-11 1997-05-02 Babcock Hitachi Kk After-air feeding device
JPH10122546A (en) * 1996-10-14 1998-05-15 Ishikawajima Harima Heavy Ind Co Ltd Over air-port
JP3915951B2 (en) * 1998-04-21 2007-05-16 バブコック日立株式会社 Boiler combustion equipment
KR100962187B1 (en) * 2002-02-07 2010-06-10 조엘 베트스카이 Overfire air port and furnace system
JP4877735B2 (en) * 2006-01-19 2012-02-15 バブコック日立株式会社 Boiler equipment
US20090087805A1 (en) * 2006-03-14 2009-04-02 Babcock-Hitachi Kabushiki Kaisha In-Furnace Gas Injection Port
MY176804A (en) * 2013-07-09 2020-08-21 Mitsubishi Hitachi Power Sys Ltd Combustion device

Also Published As

Publication number Publication date
WO2017126240A1 (en) 2017-07-27
JPWO2017126240A1 (en) 2018-11-15
TW201727156A (en) 2017-08-01
TWI640724B (en) 2018-11-11
JP6556871B2 (en) 2019-08-14

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