JPS5495058A - Elimination of adhering ammonium salt from air preheater - Google Patents

Elimination of adhering ammonium salt from air preheater

Info

Publication number
JPS5495058A
JPS5495058A JP211178A JP211178A JPS5495058A JP S5495058 A JPS5495058 A JP S5495058A JP 211178 A JP211178 A JP 211178A JP 211178 A JP211178 A JP 211178A JP S5495058 A JPS5495058 A JP S5495058A
Authority
JP
Japan
Prior art keywords
air
exhaust gas
adhering
flow passages
boiler exhaust
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.)
Pending
Application number
JP211178A
Other languages
Japanese (ja)
Inventor
Nobuo Aoki
Shigehiro Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Original Assignee
IHI Corp
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 IHI Corp filed Critical IHI Corp
Priority to JP211178A priority Critical patent/JPS5495058A/en
Publication of JPS5495058A publication Critical patent/JPS5495058A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

PURPOSE: To prevent the temperature decrease of the heat conducting part of the flow passages of air preheater into the concentric circles of which center is the axis of rotation and successively closing the sides which touch the air of the flow passages.
CONSTITUTION: By independently and successively shutting off the air flow in the parts of the divided flow passages a-d on the air side, head conductng part heated at the boiler exhaust gas side I is returned to the boiler exhaust gas side I without being cooled at the air side II, and the appropriate high temperature condition can be continuously maintained. Therefore, adhering ammonium salt on heat conducting part can be resolved and eliminated by controlling the maintaining time of high temperature condition in accordance with the gas temperature. Since the boiler exhaust gas is around 350°C, adhering (NH4)2SO4, NH4HSO4 can be resolved in comparatively short period of time.
COPYRIGHT: (C)1979,JPO&Japio
JP211178A 1978-01-12 1978-01-12 Elimination of adhering ammonium salt from air preheater Pending JPS5495058A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP211178A JPS5495058A (en) 1978-01-12 1978-01-12 Elimination of adhering ammonium salt from air preheater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP211178A JPS5495058A (en) 1978-01-12 1978-01-12 Elimination of adhering ammonium salt from air preheater

Publications (1)

Publication Number Publication Date
JPS5495058A true JPS5495058A (en) 1979-07-27

Family

ID=11520231

Family Applications (1)

Application Number Title Priority Date Filing Date
JP211178A Pending JPS5495058A (en) 1978-01-12 1978-01-12 Elimination of adhering ammonium salt from air preheater

Country Status (1)

Country Link
JP (1) JPS5495058A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5792700A (en) * 1980-12-02 1982-06-09 Gadelius Kk Soot blowing method for heat exchanger of rotating and regenerating type
EP0197023A2 (en) * 1985-03-25 1986-10-08 Simmering-Graz-Pauker Aktiengesellschaft Process and device for cleaning gas-gas heat exchangers
FR2790257A1 (en) * 1999-02-26 2000-09-01 Kvaerner Process France Sa Process for the elimination and recovery of sulfate and pyrosulfate agglomerates deposited in thermal systems from sulfurized fuels by additional application of heat to melt the compounds
CN106338075A (en) * 2016-08-25 2017-01-18 国网山东省电力公司电力科学研究院 Device and method for clearing ash deposits at cold end of air preheater after putting SCR system into operation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5792700A (en) * 1980-12-02 1982-06-09 Gadelius Kk Soot blowing method for heat exchanger of rotating and regenerating type
EP0197023A2 (en) * 1985-03-25 1986-10-08 Simmering-Graz-Pauker Aktiengesellschaft Process and device for cleaning gas-gas heat exchangers
EP0197023A3 (en) * 1985-03-25 1986-12-30 Simmering-Graz-Pauker Aktiengesellschaft Process and device for cleaning gas-gas heat exchangers
FR2790257A1 (en) * 1999-02-26 2000-09-01 Kvaerner Process France Sa Process for the elimination and recovery of sulfate and pyrosulfate agglomerates deposited in thermal systems from sulfurized fuels by additional application of heat to melt the compounds
CN106338075A (en) * 2016-08-25 2017-01-18 国网山东省电力公司电力科学研究院 Device and method for clearing ash deposits at cold end of air preheater after putting SCR system into operation

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