EP2287550A3 - Method for online cleaning of air preheaters - Google Patents

Method for online cleaning of air preheaters Download PDF

Info

Publication number
EP2287550A3
EP2287550A3 EP10007034.1A EP10007034A EP2287550A3 EP 2287550 A3 EP2287550 A3 EP 2287550A3 EP 10007034 A EP10007034 A EP 10007034A EP 2287550 A3 EP2287550 A3 EP 2287550A3
Authority
EP
European Patent Office
Prior art keywords
rotor
soot blower
air preheaters
passageways
passageway
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.)
Withdrawn
Application number
EP10007034.1A
Other languages
German (de)
French (fr)
Other versions
EP2287550A2 (en
Inventor
Scott Thomas
Charles A. Lockert
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.)
Breen Energy Solutions LLC
Original Assignee
Breen Energy Solutions LLC
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 Breen Energy Solutions LLC filed Critical Breen Energy Solutions LLC
Publication of EP2287550A2 publication Critical patent/EP2287550A2/en
Publication of EP2287550A3 publication Critical patent/EP2287550A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/16—Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D19/00—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
    • F28D19/04—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
    • F28D19/041—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier with axial flow through the intermediate heat-transfer medium
    • F28D19/042—Rotors; Assemblies of heat absorbing masses
    • F28D19/044—Rotors; Assemblies of heat absorbing masses shaped in sector form, e.g. with baskets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G15/00—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
    • F28G9/005—Cleaning by flushing or washing, e.g. with chemical solvents of regenerative heat exchanger

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air Supply (AREA)
  • Incineration Of Waste (AREA)

Abstract

A method of cleaning air preheaters of the type having a rotor (14) which passes through a stream of flue gas and a stream of intake combustion air is disclosed. A soot blower (13,15) is operated in step-wise fashion to blow a soot blowing medium through passageways (22) in the rotor (14). The passageways (22) are arranged in concentric rings and move at a tangential velocity which depends on the speed of the rotor (14) and the location of the passageway (22) relative to the center of the rotor (14). In the present method the speed of the rotor (14) is adjusted in accordance with the position of the soot blower (13,15) so that every passageway (22) moves over the soot blower (13,15) at the same or substantially the same tangential velocity.
EP10007034.1A 2009-07-08 2010-07-07 Method for online cleaning of air preheaters Withdrawn EP2287550A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/499,314 US20110005706A1 (en) 2009-07-08 2009-07-08 Method for Online Cleaning of Air Preheaters

Publications (2)

Publication Number Publication Date
EP2287550A2 EP2287550A2 (en) 2011-02-23
EP2287550A3 true EP2287550A3 (en) 2014-04-16

Family

ID=42941980

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10007034.1A Withdrawn EP2287550A3 (en) 2009-07-08 2010-07-07 Method for online cleaning of air preheaters

Country Status (4)

Country Link
US (1) US20110005706A1 (en)
EP (1) EP2287550A3 (en)
JP (1) JP2011017524A (en)
CN (1) CN101947527A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102705845A (en) * 2012-06-29 2012-10-03 中国神华能源股份有限公司 Ash blowing method for ash blowing device of full-telescopic type smoke heat exchanger and ash blowing device
CN103047674A (en) * 2012-12-28 2013-04-17 北京哈宜节能环保科技开发有限公司 Air leakage circulation control device
KR101353989B1 (en) 2013-05-21 2014-01-22 알스톰 테크놀러지 리미티드 A method of reducing fouling in an air preheater
KR101387024B1 (en) * 2013-11-25 2014-04-21 한모기술주식회사 The combined cleaning system for hear exchanger
US9587894B2 (en) * 2014-01-13 2017-03-07 General Electric Technology Gmbh Heat exchanger effluent collector
CN104634149B (en) * 2015-02-04 2016-08-24 马军 The heat exchanger reclaiming heat from used heat air with automatic cleaning function
KR101676862B1 (en) * 2015-04-07 2016-11-17 주식회사 에이스글로비즈 Self cleaning type total heat exchange system
DE202016005060U1 (en) * 2016-05-27 2016-10-13 Balcke-Dürr GmbH Air preheating device, in particular for a waste incineration plant, and waste incineration plant
CN107191963B (en) * 2017-07-10 2023-07-25 东方电气集团东方锅炉股份有限公司 Rotary air preheater and method for preventing ammonium bisulfate from being blocked by rotary air preheater
CN107388278A (en) * 2017-08-07 2017-11-24 张玉伟 A kind of stifled rotary regenerative air preheater rotor of anti-product
CN108871046B (en) * 2018-05-21 2020-06-30 合力正华（北京）工程技术有限公司 Automatic purging system and automatic purging method
CN108692331B (en) * 2018-08-07 2024-01-26 上海敖征实业有限公司 Air preheater
CN109373800A (en) * 2018-10-10 2019-02-22 广东粤电靖海发电有限公司 Can on-line cleaning rotary air preheating system and on-line cleaning method
CN109407637B (en) * 2018-11-28 2021-04-09 华能海南发电股份有限公司 Control method based on accurate positioning purging of gas heat exchanger of power plant DCS
CN112129160A (en) * 2019-06-24 2020-12-25 上海梅山钢铁股份有限公司 Online circulation cleaning device of heat exchanger
KR20210012652A (en) * 2019-07-26 2021-02-03 주식회사 지스코 System for cleaning heat exchange and method of cleaning heat exchange
US20220349664A1 (en) * 2019-07-26 2022-11-03 Geesco Co., Ltd. Heat exchanger cleaning system and heat exchanger cleaning method
CN111536826A (en) * 2020-05-19 2020-08-14 天津全诚桓金环保科技有限公司 Disassembly-free green cleaning process for rotary air preheater
CN112682814A (en) * 2020-12-22 2021-04-20 南京市利澜电力节能科技有限公司 Blockage clearing device and method for multiple air preheater systems
CN116221761B (en) * 2023-03-21 2023-09-22 江阴金童石化装备有限公司 Radial flow back rotary heat accumulating type air preheater

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2761653A (en) * 1953-06-29 1956-09-04 Air Preheater Rotary heater washer control system
EP0025634A2 (en) * 1979-09-17 1981-03-25 The Dow Chemical Company Method and apparatus for cleaning the basket section of an air preheater
US4850423A (en) * 1988-02-10 1989-07-25 Halliburton Company Air preheater water jet cleaning apparatus
US20030015151A1 (en) * 2001-07-20 2003-01-23 Hipple James H. Oscillating sootblower mechanism

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2812923A (en) 1954-03-11 1957-11-12 Air Preheater Preheater washing device
US3782336A (en) * 1971-10-21 1974-01-01 Diamond Power Speciality Method and apparatus for cleaning heated surfaces
US5044424A (en) * 1980-12-19 1991-09-03 Monro Richard J Heat generator
JPS5963499A (en) * 1982-10-01 1984-04-11 Sumitomo Metal Mining Co Ltd Control of nozzle for cleaning
US4496525A (en) * 1983-07-25 1985-01-29 Nalco Chemical Company Method for using chemical additives to protect utility boiler air heaters while increasing unit generation capacity
US4628836A (en) * 1984-08-24 1986-12-16 Waterscience, Inc. Process for inhibiting corrosion and minimizing deposits in an air preheater system
JPS61250497A (en) * 1985-04-26 1986-11-07 クラフタンラ−ゲン　アクチエンゲゼルシヤフト Heat exchanger matrix
JPH0810739Y2 (en) * 1991-07-29 1996-03-29 株式会社タクマ Soot blower
JPH05295626A (en) * 1992-04-16 1993-11-09 Fukuhara Seiki Seisakusho:Kk Device for cleaning filter in dust-collecting-dust-removing device
JPH05322150A (en) * 1992-05-25 1993-12-07 Mitsubishi Heavy Ind Ltd Soot blower device for heat exchanger
US5366561A (en) * 1993-05-06 1994-11-22 Butterworth Jetting Systems, Inc. Air preheater cleaning method
DE4442055A1 (en) * 1994-11-25 1996-05-30 Rothemuehle Brandt Kritzler Regenerative heat exchanger
US5626184A (en) * 1995-08-24 1997-05-06 Abb Air Preheater, Inc. Sootblower
DE19929765A1 (en) * 1999-06-29 2001-01-11 Siemens Ag Flue gas cleaning device
US6065528A (en) * 1999-08-09 2000-05-23 Abb Air Preheater, Inc. Air preheater cleaner
US6516871B1 (en) * 1999-08-18 2003-02-11 Alstom (Switzerland) Ltd. Heat transfer element assembly
US6260606B1 (en) * 1999-12-16 2001-07-17 Abb Air Preheater, Inc. Rotor construction for air preheater
EP1143037B1 (en) * 2000-04-07 2007-02-14 Asahi Glass Co., Ltd. Method for removing an acidic deposit
US7286960B2 (en) * 2004-09-30 2007-10-23 General Electric Company Systems and methods for monitoring fouling and slagging in heat transfer devices in coal fired power plants
JP2007192417A (en) * 2006-01-17 2007-08-02 Nippon Steel Corp Soot blower and its control method
JP4786560B2 (en) * 2007-01-22 2011-10-05 中国電力株式会社 Soot blower device and operation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2761653A (en) * 1953-06-29 1956-09-04 Air Preheater Rotary heater washer control system
EP0025634A2 (en) * 1979-09-17 1981-03-25 The Dow Chemical Company Method and apparatus for cleaning the basket section of an air preheater
US4850423A (en) * 1988-02-10 1989-07-25 Halliburton Company Air preheater water jet cleaning apparatus
US20030015151A1 (en) * 2001-07-20 2003-01-23 Hipple James H. Oscillating sootblower mechanism

Also Published As

Publication number Publication date
CN101947527A (en) 2011-01-19
JP2011017524A (en) 2011-01-27
EP2287550A2 (en) 2011-02-23
US20110005706A1 (en) 2011-01-13

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