PH12020551414A1 - Method of replacing furnace wall tube - Google Patents

Method of replacing furnace wall tube

Info

Publication number
PH12020551414A1
PH12020551414A1 PH12020551414A PH12020551414A PH12020551414A1 PH 12020551414 A1 PH12020551414 A1 PH 12020551414A1 PH 12020551414 A PH12020551414 A PH 12020551414A PH 12020551414 A PH12020551414 A PH 12020551414A PH 12020551414 A1 PH12020551414 A1 PH 12020551414A1
Authority
PH
Philippines
Prior art keywords
furnace wall
furnace
boiler
replacement portion
outside
Prior art date
Application number
PH12020551414A
Inventor
Masakazu Matsui
Original Assignee
Mitsubishi Power 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 Mitsubishi Power Ltd filed Critical Mitsubishi Power Ltd
Publication of PH12020551414A1 publication Critical patent/PH12020551414A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/32—Accessories
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/08—Cooling thereof; Tube walls

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

This method for replacing a furnace wall tube of a furnace wall of a boiler comprises: an identification step for identifying a furnace wall replacement portion which contains a furnace wall tube replacement portion, which is a portion of the length direction of at least one of a plurality of furnace wall tubes; a cutting step for cutting the furnace wall replacement portion from the outside of the furnace of the boiler; a removal step for removing the cut furnace wall replacement portion from the furnace wall to the outside of the furnace of the boiler; a first welding step for circumferentially welding, from the outside of the furnace of the boiler, a furnace wall tube renewal portion which corresponds to the furnace wall replacement portion which was removed from the furnace wall, and the furnace wall tube from which the furnace wall replacement portion was removed; and a second welding step for fitting a fin part renewal portion, which corresponds to a portion of a fin part contained in the furnace wall replacement portion removed from the furnace wall, from the outside of the furnace of the boiler into the furnace wall and welding the result after the first welding step.
PH12020551414A 2018-03-12 2020-09-08 Method of replacing furnace wall tube PH12020551414A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018044785A JP7164310B2 (en) 2018-03-12 2018-03-12 How to replace the furnace wall tube
PCT/JP2019/008561 WO2019176641A1 (en) 2018-03-12 2019-03-05 Method for replacing furnace wall tube

Publications (1)

Publication Number Publication Date
PH12020551414A1 true PH12020551414A1 (en) 2021-09-01

Family

ID=67907046

Family Applications (1)

Application Number Title Priority Date Filing Date
PH12020551414A PH12020551414A1 (en) 2018-03-12 2020-09-08 Method of replacing furnace wall tube

Country Status (4)

Country Link
JP (1) JP7164310B2 (en)
CN (1) CN111919060B (en)
PH (1) PH12020551414A1 (en)
WO (1) WO2019176641A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6698933B1 (en) * 2019-12-27 2020-05-27 三菱日立パワーシステムズ株式会社 Inspection method of repair part of furnace wall and repair method of furnace wall

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1348792A (en) * 1971-07-15 1974-03-20 Foster Wheeler Brown Boilers Tube-wall repairs
JP2611398B2 (en) * 1988-12-06 1997-05-21 石川島播磨重工業株式会社 Weld groove shape of pipe joint
GB2261621B (en) * 1991-11-22 1996-05-15 Victor Gregory Marshall Fusion butt welds accessible from one side only
JPH0715162U (en) * 1993-08-05 1995-03-14 三菱重工業株式会社 Auxiliary shield box for narrow groove welding
JPH07132420A (en) * 1993-11-02 1995-05-23 Mitsubishi Heavy Ind Ltd Method of repairing boiler furnace wall tube
JPH08334187A (en) * 1995-06-07 1996-12-17 Mitsubishi Heavy Ind Ltd Repairing method for furnace wall pipe
JP3204440B2 (en) * 1995-08-02 2001-09-04 日立プラント建設株式会社 Centering jig for welding pipes
JPH09296903A (en) * 1996-05-02 1997-11-18 Ishikawajima Harima Heavy Ind Co Ltd Boiler furnace wall structure
JP3310860B2 (en) * 1996-05-10 2002-08-05 三菱重工業株式会社 Film sticking equipment for radiation inspection of furnace tube
JPH09303706A (en) * 1996-05-13 1997-11-28 Mitsubishi Heavy Ind Ltd Repair method for furnace wall pipe, and pipe bender used for its execution
JPH10244365A (en) * 1997-02-28 1998-09-14 Yokohama Rubber Co Ltd:The Welding method of thick wall pipe
JPH11170050A (en) * 1997-12-12 1999-06-29 Toden Kogyo Co Ltd Welding defect prevention method in on-site welding of piping
JPH11277238A (en) * 1998-03-31 1999-10-12 Hitachi Zosen Corp Gas shielded arc welding torch for groove of thick wall
JP2000061674A (en) * 1998-08-19 2000-02-29 Toshiba Corp Production of gas insulation switchgear
JP2003136286A (en) * 2001-11-02 2003-05-14 Setsumen:Kk Piping core in electric welding connection of hit-dip galvanized material for carbon steel pipe for piping, and inner surface corrosion preventive covering short pipe with gap adjustment function
JP4442763B2 (en) * 2004-10-13 2010-03-31 バブコック日立株式会社 All-position automatic welding head and its operation method
EP2000251A1 (en) * 2007-06-05 2008-12-10 Alstom Technology Ltd Repair welding method for waterwall tubes
DE102008029724B4 (en) * 2007-06-26 2010-09-30 V&M Deutschland Gmbh Method for joining thick-walled metallic pieces by means of welding
JP5594814B2 (en) * 2009-06-12 2014-09-24 愛知産業株式会社 Tube welding method to circumferentially curved surface
JP5610715B2 (en) * 2009-06-25 2014-10-22 三菱重工業株式会社 Pipe welding method and shielding gas filling foaming agent
CN204554770U (en) * 2015-03-31 2015-08-12 中国神华能源股份有限公司 For be connected to boiler water wall water cooling tube between connection fin and boiler
BE1026119B1 (en) 2018-03-29 2020-01-07 Atlas Copco Airpower Nv Screw compressor element and machine

Also Published As

Publication number Publication date
JP2019158220A (en) 2019-09-19
CN111919060B (en) 2023-03-31
CN111919060A (en) 2020-11-10
JP7164310B2 (en) 2022-11-01
WO2019176641A1 (en) 2019-09-19

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