MY198599A - Boiler air preheating device, and boiler operation method - Google Patents

Boiler air preheating device, and boiler operation method

Info

Publication number
MY198599A
MY198599A MYPI2020000861A MYPI2020000861A MY198599A MY 198599 A MY198599 A MY 198599A MY PI2020000861 A MYPI2020000861 A MY PI2020000861A MY PI2020000861 A MYPI2020000861 A MY PI2020000861A MY 198599 A MY198599 A MY 198599A
Authority
MY
Malaysia
Prior art keywords
boiler
air
operation method
preheating device
passage
Prior art date
Application number
MYPI2020000861A
Inventor
Hirotada Fujii
Original Assignee
Sumitomo Heavy Industries
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 Sumitomo Heavy Industries filed Critical Sumitomo Heavy Industries
Publication of MY198599A publication Critical patent/MY198599A/en

Links

Classifications

    • 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
    • F23L15/00—Heating of air supplied for combustion
    • F23L15/04—Arrangements of recuperators
    • 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
    • F23L15/00—Heating of air supplied for combustion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Supply (AREA)

Abstract

Provided are an air preheating device (15) for a boiler (1) and a boiler operation method capable of reducing an acid dew point corrosion of an air preheater without causing a significant decline in boiler efficiency or a significant increase in cost of parts. An air preheating device (15) for a boiler (1) includes a plurality of stages of air preheaters (151, 152, 153) arranged along a flow direction of an exhaust gas; and a bypass passage (158d) that branches a part of combustion air upstream of an air passage (158a, 158b, 158c) of an air preheater of any one of the plurality of stages of air preheaters (151, 152, 153), and diverts the part of combustion air to an upstream of an air passage of an air preheater of another stage. Further, a boiler operation method is a method for changing an opening degree of a flow rate adjustment unit (159) depending on a working rate of a boiler (1), in a boiler (1) including a flow rate adjustment unit (159) capable of changing an opening degree of a bypass passage (58d). The most suitable drawing: FIG. 2.
MYPI2020000861A 2017-09-12 2018-08-15 Boiler air preheating device, and boiler operation method MY198599A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017174445 2017-09-12
PCT/JP2018/030323 WO2019054117A1 (en) 2017-09-12 2018-08-15 Boiler air preheating device, and boiler operation method

Publications (1)

Publication Number Publication Date
MY198599A true MY198599A (en) 2023-09-07

Family

ID=65722689

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2020000861A MY198599A (en) 2017-09-12 2018-08-15 Boiler air preheating device, and boiler operation method

Country Status (5)

Country Link
JP (1) JP7101180B2 (en)
KR (1) KR102483777B1 (en)
MY (1) MY198599A (en)
PH (1) PH12020500387B1 (en)
WO (1) WO2019054117A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111895442A (en) * 2019-05-06 2020-11-06 重庆市商顺换热设备有限公司 Flue gas treatment system of power plant
CN113008042B (en) * 2021-04-15 2023-04-18 新余钢铁股份有限公司 Preheater protection structure for heating furnace and use method thereof
CN117515578B (en) * 2022-07-29 2026-04-21 招远市汇潮新能源科技有限公司 A fuel preheating combustion system
CN115930252A (en) * 2023-01-16 2023-04-07 重庆华峰化工有限公司 Primary air supply system for a boiler

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305455A (en) * 1979-02-28 1981-12-15 Lipets Adolf U Multipass corrosion proof air heater
GB2046425B (en) * 1979-04-06 1983-06-15 Lipets A U Multipass corrosion proof air heater
GB2139746B (en) * 1983-04-22 1986-07-23 Lipets Adolf U Multipass corrosion-proof air preheater
JPS60162110A (en) 1984-02-02 1985-08-23 Mitsubishi Heavy Ind Ltd Temperature controller for fluidized-bed
JPH0194748A (en) 1987-10-07 1989-04-13 Casio Comput Co Ltd Calling device
JPH01234713A (en) * 1988-03-16 1989-09-20 Ngk Insulators Ltd Temperature control of incinerator

Also Published As

Publication number Publication date
PH12020500387B1 (en) 2024-02-14
KR102483777B1 (en) 2022-12-30
JPWO2019054117A1 (en) 2020-10-22
WO2019054117A1 (en) 2019-03-21
JP7101180B2 (en) 2022-07-14
KR20200052873A (en) 2020-05-15
PH12020500387A1 (en) 2021-01-04

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