US3835817A - Apparatus for outside cleaning of boiler tubes - Google Patents

Apparatus for outside cleaning of boiler tubes Download PDF

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Publication number
US3835817A
US3835817A US00282053A US28205372A US3835817A US 3835817 A US3835817 A US 3835817A US 00282053 A US00282053 A US 00282053A US 28205372 A US28205372 A US 28205372A US 3835817 A US3835817 A US 3835817A
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US
United States
Prior art keywords
tubes
impulse
boiler
striking
hammer
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.)
Expired - Lifetime
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US00282053A
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English (en)
Inventor
J Tuomaala
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Ahlstrom Corp
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Ahlstrom Corp
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Filing date
Publication date
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Publication of US3835817A publication Critical patent/US3835817A/en
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    • 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
    • F28G7/00—Cleaning by vibration or pressure waves

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning In General (AREA)
  • Incineration Of Waste (AREA)
  • Vibration Prevention Devices (AREA)
US00282053A 1971-08-19 1972-08-21 Apparatus for outside cleaning of boiler tubes Expired - Lifetime US3835817A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI712316A FI52147C (fi) 1971-08-19 1971-08-19 Menetelmä ja laite höyrykattilan putkiston ulkopuolista puhdistusta va rten

Publications (1)

Publication Number Publication Date
US3835817A true US3835817A (en) 1974-09-17

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ID=8506934

Family Applications (1)

Application Number Title Priority Date Filing Date
US00282053A Expired - Lifetime US3835817A (en) 1971-08-19 1972-08-21 Apparatus for outside cleaning of boiler tubes

Country Status (6)

Country Link
US (1) US3835817A (ja)
JP (1) JPS4835205A (ja)
DE (1) DE2240250C2 (ja)
FI (1) FI52147C (ja)
SE (1) SE380893B (ja)
SU (1) SU556739A3 (ja)

Cited By (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3920085A (en) * 1974-11-11 1975-11-18 Universal Oil Prod Co Swing hammer rapping system for electrostatic precipitator
US3997000A (en) * 1975-09-25 1976-12-14 Dominion Bridge Company, Limited Mechanical cleaning device for boilers with gas flow containing sticky dust
US4018267A (en) * 1975-01-10 1977-04-19 Dorr-Oliver Incorporated Cleaning heat exchanger tubes
US4077465A (en) * 1975-08-15 1978-03-07 The Electricity Council Boilers
US4167209A (en) * 1975-08-15 1979-09-11 The Electricity Council Boilers
US4396434A (en) * 1980-11-26 1983-08-02 Somalor-Ferrari "Somafer" Sa Process for cleaning surfaces fouled by deposits resulting from combustion of carbon-bearing substances
EP0093570A2 (en) * 1982-05-03 1983-11-09 The Babcock & Wilcox Company Boiler systems
US4421067A (en) * 1982-09-07 1983-12-20 Deltak Corporation Apparatus and method for soot cleaning in high-pressure heat exchangers
US4430948A (en) * 1981-10-07 1984-02-14 Western Heating, Inc. Fuel stoker and furnace
US4454860A (en) * 1981-10-07 1984-06-19 Stephen A. Schafer Fuel stoker and furnace
US4497282A (en) * 1983-11-23 1985-02-05 Neundorfer, Inc. Apparatus for deslagging steam generator tubes
US4741292A (en) * 1986-12-22 1988-05-03 The Babcock & Wilcox Company Electro-impulse rapper system for boilers
USRE32723E (en) * 1983-11-23 1988-08-02 Neundorfer, Inc. Apparatus for deslagging steam generator tubes
US4836146A (en) * 1988-05-19 1989-06-06 Shell Oil Company Controlling rapping cycle
US4841917A (en) * 1987-07-31 1989-06-27 L. & C. Steinmuller Gmbh Radiation cooling unit for cooling dust-laden gases
US4893588A (en) * 1987-10-29 1990-01-16 Schmidt'sche Heissdampf Gmbh Adaptive control technique for steam generator cleaning
US5056587A (en) * 1990-09-07 1991-10-15 Halliburton Company Method for deslagging a boiler
US5079459A (en) * 1991-01-23 1992-01-07 The Babcock & Wilcox Company Electro-hammer rapper
US5238055A (en) * 1992-05-13 1993-08-24 The Babcock & Wilcox Company Field adjustable rapper tie bar
US5315966A (en) * 1993-01-18 1994-05-31 Serge Gamache Hammering device for tube boilers
US5540275A (en) * 1995-03-17 1996-07-30 Foster Wheeler Energy Corporation Single impact rapping hammer system and method for cleaning tube units
US5765510A (en) * 1996-04-26 1998-06-16 Dltk, Inc. Retractable, sealed sootblower for high pressure, high temperature applications
US5873408A (en) * 1996-04-24 1999-02-23 Naphtachimie Method and apparatus for heat treating substances flowing along a duct
WO2002016053A1 (fr) * 2000-08-22 2002-02-28 Moiseichev, Alexandr Viktorovich Procédé de protection et de nettoyage des matériaux ferromagnétiques contre les dépôts
WO2003052318A1 (en) * 2001-12-19 2003-06-26 Gemeente Amsterdam Steam super heater comprising unround pipes
US20060278368A1 (en) * 2004-02-10 2006-12-14 Peter Dawson Apparatus for cleaning heat exchanger plates and a bulk material heat exchanger using the same
US20070068654A1 (en) * 2005-09-23 2007-03-29 Hon Hai Precision Industry Co., Ltd. Heat dissipation system and method for making same
US20070144631A1 (en) * 2005-12-21 2007-06-28 Exxonmobil Research And Engineering Company Method for reducing fouling in a refinery
US20070158054A1 (en) * 2005-12-21 2007-07-12 Greaney Mark A Corrosion resistant material for reduced fouling, a heat transfer component having reduced fouling and a method for reducing fouling in a refinery
US20070178322A1 (en) * 2005-12-21 2007-08-02 Exxonmobil Research And Engineering Company Silicon-containing steel composition with improved heat exchanger corrosion and fouling resistance
US20070267175A1 (en) * 2006-05-19 2007-11-22 Exxon Mobil Research And Engineering Company Device for generating acoustic and/or vibration energy for heat exchanger tubes
US20070267176A1 (en) * 2006-05-19 2007-11-22 Exxonmobil Research And Engineering Company Mitigation of in-tube fouling in heat exchangers using controlled mechanical vibration
US20080073063A1 (en) * 2006-06-23 2008-03-27 Exxonmobil Research And Engineering Company Reduction of fouling in heat exchangers
US20080121373A1 (en) * 2006-11-23 2008-05-29 Inventec Corporation Heat-dissipation device with dust-disposal function
US20080149308A1 (en) * 2006-12-20 2008-06-26 Limin Song Vibration actuation system with independent control of frequency and amplitude
US20090090613A1 (en) * 2007-10-05 2009-04-09 Exxonmobil Research And Engineering Company Crude oil pre-heat train with improved heat transfer and method of improving heat transfer
US20100108340A1 (en) * 2006-12-14 2010-05-06 Foster Wheeler Energia Oy Impact Rapping Device
WO2011003890A1 (en) * 2009-07-09 2011-01-13 Shell Internationale Research Maatschappij B.V. Heat exchanger
DE102007024286B4 (de) * 2006-06-06 2012-07-19 Alstom Technology Ltd. Kesselrohrwand und Einrichtung zu deren Reinigung
US20160116158A1 (en) * 2014-10-24 2016-04-28 Hrst, Inc. Tube spreading device and boiler cleaning system
CN105798022A (zh) * 2016-05-10 2016-07-27 钱伟 一种用于聚能器的管排敲打装置
DE102015010307A1 (de) 2015-08-07 2017-02-09 Steinmüller Babcock Environment Gmbh Vorrichtung zur Einleitung von Schlagkräften in eine Heizfläche
WO2021037372A1 (en) 2019-08-29 2021-03-04 Sumitomo SHI FW Energia Oy Spring hammer for rapping a surface
CN112696948A (zh) * 2020-12-25 2021-04-23 常州英索兰换热器有限公司 一种耐腐蚀烟气板式换热器
IT202100012674A1 (it) * 2021-05-17 2022-11-17 Francesco Folli Paraurti per pulizia a percussione di caldaie a vapore

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2710153C2 (de) * 1977-03-09 1985-06-20 Alexander Bock Vorrichtung zur intermittierenden Reinigung verschmutzter Flächen
DE3334456C2 (de) * 1983-09-23 1986-06-12 L. & C. Steinmüller GmbH, 5270 Gummersbach Vorrichtung zur Kraftstoßübertragung
IT1167248B (it) * 1983-10-05 1987-05-13 Redecam Srl Impianto di scambio termico per fluidi con particelle in sospensione
DE3503605C2 (de) * 1985-02-02 1995-03-09 Erk Eckrohrkessel Im Kessel eingebaute Klopfreinigungseinrichtung
DE3524264A1 (de) * 1985-07-06 1987-01-08 Erk Eckrohrkessel Abklopfbares rohrgitter
DE3741378A1 (de) * 1987-12-07 1989-06-15 Oschatz Gmbh Vorrichtung zum reinigen einer heizflaeche, insbesondere einer kesselanlage
DE3819941A1 (de) * 1988-06-11 1989-12-21 Heinz Hilke Verfahren zum abreinigen der rohre in einem dampferzeuger und vorrichtung zur durchfuehrung des verfahrens
DE3942759C1 (en) * 1989-12-23 1991-06-06 Oschatz Gmbh, 4300 Essen, De Cleaner for boiler ducts - has anvil impacted by hammer to transfer impact force onto wall
DK173090B1 (da) * 1997-11-11 2000-01-10 Fls Miljoe As Affaldsforbrændingskedel
DE19810732B4 (de) * 1998-03-12 2006-09-28 Oschatz Gmbh Vorrichtung zum Reinigen insbesondere von Abhitzekesselbauteilen
DE102005045633B3 (de) * 2005-09-23 2007-05-16 Alstom Technology Ltd Fallhammer-Klopfvorrichtung
CN102371258A (zh) * 2011-11-17 2012-03-14 河南龙工机械制造有限公司 敲击式清渣装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1124393A (en) * 1910-03-21 1915-01-12 George H Coates Mechanical hammer.
FR592612A (fr) * 1925-02-04 1925-08-06 Marteau perforateur automatique
US2183496A (en) * 1937-11-15 1939-12-12 La Mont Corp Cleaning tubular heat exchanging surfaces
US2550676A (en) * 1945-06-20 1951-05-01 Dalin David Combined waste-heat boiler and chemical recovery unit
US2655911A (en) * 1948-12-09 1953-10-20 Pierre Van Russum Percussion mechanism
FR1045678A (fr) * 1950-12-29 1953-11-30 Procédé et dispositif de nettoyage et, plus particulièrement de dépoussiérage de surfaces extérieures échangeuses de chaleur de tubes, serpentins, ou analogues
US3295596A (en) * 1963-12-17 1967-01-03 Standard Oil Co Heat exchanger and cleaning means therefor
CA789927A (en) * 1968-07-16 Izrailevich Kropp Leonid Device for vibrational cleaning of tubular heating surfaces in heat exchange plants from external contaminations mainly slag and ash

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE560705C (de) * 1931-03-21 1932-10-06 Borsig G M B H A Vorrichtung zur Entfernung der Flugasche und anderer Verbrennungsrueckstaende von Rohrschlangen
DE719718C (de) * 1937-11-16 1942-04-15 Mont Kessel Herpen & Co K G Vorrichtung zum Entfernen der Rauchgasseitigen Verschmutzungen von aus Rohrschlangengebildeten Heizflaechen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA789927A (en) * 1968-07-16 Izrailevich Kropp Leonid Device for vibrational cleaning of tubular heating surfaces in heat exchange plants from external contaminations mainly slag and ash
US1124393A (en) * 1910-03-21 1915-01-12 George H Coates Mechanical hammer.
FR592612A (fr) * 1925-02-04 1925-08-06 Marteau perforateur automatique
US2183496A (en) * 1937-11-15 1939-12-12 La Mont Corp Cleaning tubular heat exchanging surfaces
US2550676A (en) * 1945-06-20 1951-05-01 Dalin David Combined waste-heat boiler and chemical recovery unit
US2655911A (en) * 1948-12-09 1953-10-20 Pierre Van Russum Percussion mechanism
FR1045678A (fr) * 1950-12-29 1953-11-30 Procédé et dispositif de nettoyage et, plus particulièrement de dépoussiérage de surfaces extérieures échangeuses de chaleur de tubes, serpentins, ou analogues
US3295596A (en) * 1963-12-17 1967-01-03 Standard Oil Co Heat exchanger and cleaning means therefor

Cited By (77)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3920085A (en) * 1974-11-11 1975-11-18 Universal Oil Prod Co Swing hammer rapping system for electrostatic precipitator
US4018267A (en) * 1975-01-10 1977-04-19 Dorr-Oliver Incorporated Cleaning heat exchanger tubes
US4077465A (en) * 1975-08-15 1978-03-07 The Electricity Council Boilers
US4167209A (en) * 1975-08-15 1979-09-11 The Electricity Council Boilers
US3997000A (en) * 1975-09-25 1976-12-14 Dominion Bridge Company, Limited Mechanical cleaning device for boilers with gas flow containing sticky dust
US4396434A (en) * 1980-11-26 1983-08-02 Somalor-Ferrari "Somafer" Sa Process for cleaning surfaces fouled by deposits resulting from combustion of carbon-bearing substances
US4430948A (en) * 1981-10-07 1984-02-14 Western Heating, Inc. Fuel stoker and furnace
US4454860A (en) * 1981-10-07 1984-06-19 Stephen A. Schafer Fuel stoker and furnace
US4442800A (en) * 1982-05-03 1984-04-17 The Babcock & Wilcox Company Single drum all-welded boiler
EP0093570A3 (en) * 1982-05-03 1985-10-09 The Babcock & Wilcox Company Boiler systems
EP0254379A1 (en) * 1982-05-03 1988-01-27 The Babcock & Wilcox Company Boilers systems
EP0093570A2 (en) * 1982-05-03 1983-11-09 The Babcock & Wilcox Company Boiler systems
US4421067A (en) * 1982-09-07 1983-12-20 Deltak Corporation Apparatus and method for soot cleaning in high-pressure heat exchangers
US4497282A (en) * 1983-11-23 1985-02-05 Neundorfer, Inc. Apparatus for deslagging steam generator tubes
USRE32723E (en) * 1983-11-23 1988-08-02 Neundorfer, Inc. Apparatus for deslagging steam generator tubes
US4741292A (en) * 1986-12-22 1988-05-03 The Babcock & Wilcox Company Electro-impulse rapper system for boilers
US4841917A (en) * 1987-07-31 1989-06-27 L. & C. Steinmuller Gmbh Radiation cooling unit for cooling dust-laden gases
US4893588A (en) * 1987-10-29 1990-01-16 Schmidt'sche Heissdampf Gmbh Adaptive control technique for steam generator cleaning
US4836146A (en) * 1988-05-19 1989-06-06 Shell Oil Company Controlling rapping cycle
US5056587A (en) * 1990-09-07 1991-10-15 Halliburton Company Method for deslagging a boiler
US5079459A (en) * 1991-01-23 1992-01-07 The Babcock & Wilcox Company Electro-hammer rapper
US5238055A (en) * 1992-05-13 1993-08-24 The Babcock & Wilcox Company Field adjustable rapper tie bar
US5315966A (en) * 1993-01-18 1994-05-31 Serge Gamache Hammering device for tube boilers
EP0732561A3 (en) * 1995-03-17 1997-10-15 Foster Wheeler Energy Corp Single impact hammer tapping device and method for cleaning tube assemblies
EP0732561A2 (en) 1995-03-17 1996-09-18 Foster Wheeler Energy Corporation Single impact rapping hammer system and method for cleaning tube units
US5540275A (en) * 1995-03-17 1996-07-30 Foster Wheeler Energy Corporation Single impact rapping hammer system and method for cleaning tube units
US5873408A (en) * 1996-04-24 1999-02-23 Naphtachimie Method and apparatus for heat treating substances flowing along a duct
US5765510A (en) * 1996-04-26 1998-06-16 Dltk, Inc. Retractable, sealed sootblower for high pressure, high temperature applications
WO2002016053A1 (fr) * 2000-08-22 2002-02-28 Moiseichev, Alexandr Viktorovich Procédé de protection et de nettoyage des matériaux ferromagnétiques contre les dépôts
EA003379B1 (ru) * 2000-08-22 2003-04-24 Моисеичев, Александр Викторович Способ защиты и очистки поверхности ферромагнитных материалов от отложений
WO2003052318A1 (en) * 2001-12-19 2003-06-26 Gemeente Amsterdam Steam super heater comprising unround pipes
US20060278368A1 (en) * 2004-02-10 2006-12-14 Peter Dawson Apparatus for cleaning heat exchanger plates and a bulk material heat exchanger using the same
US7264039B2 (en) * 2004-02-10 2007-09-04 Peter Dawson Apparatus for cleaning heat exchanger plates and a bulk material heat exchanger using the same
US20070068654A1 (en) * 2005-09-23 2007-03-29 Hon Hai Precision Industry Co., Ltd. Heat dissipation system and method for making same
US20070207329A1 (en) * 2005-12-21 2007-09-06 Chun Changmin Chromiun-enriched oxide containing material and preoxidation method of making the same to mitigate corrosion and fouling associated with heat transfer components
US8470097B2 (en) 2005-12-21 2013-06-25 Exxonmobil Research And Engineering Company Silicon-containing steel compostition with improved heat exchanger corrosion and fouling resistance
US20070187078A1 (en) * 2005-12-21 2007-08-16 Exxonmobil Research And Engineering Company Insert and method for reducing fouling in a process stream
US20070158054A1 (en) * 2005-12-21 2007-07-12 Greaney Mark A Corrosion resistant material for reduced fouling, a heat transfer component having reduced fouling and a method for reducing fouling in a refinery
US20070144631A1 (en) * 2005-12-21 2007-06-28 Exxonmobil Research And Engineering Company Method for reducing fouling in a refinery
US8469081B2 (en) 2005-12-21 2013-06-25 Exxonmobil Research And Engineering Company Corrosion resistant material for reduced fouling, a heat transfer component having reduced fouling and a method for reducing fouling in a refinery
US20070178322A1 (en) * 2005-12-21 2007-08-02 Exxonmobil Research And Engineering Company Silicon-containing steel composition with improved heat exchanger corrosion and fouling resistance
US8465599B2 (en) 2005-12-21 2013-06-18 Exxonmobil Research And Engineering Company Chromiun-enriched oxide containing material and preoxidation method of making the same to mitigate corrosion and fouling associated with heat transfer components
US8286695B2 (en) 2005-12-21 2012-10-16 Exxonmobil Research & Engineering Company Insert and method for reducing fouling in a process stream
US8211548B2 (en) 2005-12-21 2012-07-03 Exxonmobil Research & Engineering Co. Silicon-containing steel composition with improved heat exchanger corrosion and fouling resistance
US8201619B2 (en) 2005-12-21 2012-06-19 Exxonmobil Research & Engineering Company Corrosion resistant material for reduced fouling, a heat transfer component having reduced fouling and a method for reducing fouling in a refinery
US8037928B2 (en) 2005-12-21 2011-10-18 Exxonmobil Research & Engineering Company Chromium-enriched oxide containing material and preoxidation method of making the same to mitigate corrosion and fouling associated with heat transfer components
US20070267175A1 (en) * 2006-05-19 2007-11-22 Exxon Mobil Research And Engineering Company Device for generating acoustic and/or vibration energy for heat exchanger tubes
US20070267176A1 (en) * 2006-05-19 2007-11-22 Exxonmobil Research And Engineering Company Mitigation of in-tube fouling in heat exchangers using controlled mechanical vibration
US7823627B2 (en) * 2006-05-19 2010-11-02 Exxonmobil Research & Engineering Company Device for generating acoustic and/or vibration energy for heat exchanger tubes
US7836941B2 (en) 2006-05-19 2010-11-23 Exxonmobil Research And Engineering Company Mitigation of in-tube fouling in heat exchangers using controlled mechanical vibration
WO2007136698A3 (en) * 2006-05-19 2008-02-28 Exxonmobil Res & Eng Co A device for generating acoustic and/or vibration energy for heat exchanger tubes
KR101206635B1 (ko) 2006-05-19 2012-11-29 엑손모빌 리서치 앤드 엔지니어링 컴퍼니 진동 유도 에너지 발생 장치 및 열교환기 개조 키트
AU2007254264B2 (en) * 2006-05-19 2011-06-09 Exxonmobil Research And Engineering Company A device for generating acoustic and/or vibration energy for heat exchanger tubes
CN101473183B (zh) * 2006-05-19 2011-06-15 埃克森美孚研究工程公司 用于热交换器管的产生声能和/或振动能的装置
DE102007024286B4 (de) * 2006-06-06 2012-07-19 Alstom Technology Ltd. Kesselrohrwand und Einrichtung zu deren Reinigung
US20080073063A1 (en) * 2006-06-23 2008-03-27 Exxonmobil Research And Engineering Company Reduction of fouling in heat exchangers
US20080121373A1 (en) * 2006-11-23 2008-05-29 Inventec Corporation Heat-dissipation device with dust-disposal function
US20100108340A1 (en) * 2006-12-14 2010-05-06 Foster Wheeler Energia Oy Impact Rapping Device
US8291560B2 (en) 2006-12-14 2012-10-23 Foster Wheeler Energia Oy Impact rapping device
US7726871B2 (en) 2006-12-20 2010-06-01 Exxonmobil Research & Engineering Company Vibration actuation system with independent control of frequency and amplitude
US20100193159A1 (en) * 2006-12-20 2010-08-05 Exxonmobil Research And Engineering Company Vibration actuation system with independent control of frequency and amplitude
US20080149308A1 (en) * 2006-12-20 2008-06-26 Limin Song Vibration actuation system with independent control of frequency and amplitude
US7862224B2 (en) 2006-12-20 2011-01-04 Exxonmobil Research & Engineering Company Vibration actuation system with independent control of frequency and amplitude
US20090090613A1 (en) * 2007-10-05 2009-04-09 Exxonmobil Research And Engineering Company Crude oil pre-heat train with improved heat transfer and method of improving heat transfer
US8349267B2 (en) 2007-10-05 2013-01-08 Exxonmobil Research And Engineering Company Crude oil pre-heat train with improved heat transfer
CN102472592B (zh) * 2009-07-09 2015-03-25 国际壳牌研究有限公司 换热器
CN102472592A (zh) * 2009-07-09 2012-05-23 国际壳牌研究有限公司 换热器
AU2010270298B2 (en) * 2009-07-09 2013-11-14 Air Products And Chemicals, Inc. Heat exchanger
WO2011003890A1 (en) * 2009-07-09 2011-01-13 Shell Internationale Research Maatschappij B.V. Heat exchanger
US20160116158A1 (en) * 2014-10-24 2016-04-28 Hrst, Inc. Tube spreading device and boiler cleaning system
US10605450B2 (en) * 2014-10-24 2020-03-31 Hrst, Inc. Tube spreading device and boiler cleaning system
DE102015010307A1 (de) 2015-08-07 2017-02-09 Steinmüller Babcock Environment Gmbh Vorrichtung zur Einleitung von Schlagkräften in eine Heizfläche
DE102015010307B4 (de) 2015-08-07 2019-01-10 Steinmüller Babcock Environment Gmbh Vorrichtung zur Einleitung von Schlagkräften in eine Heizfläche und Verfahren zum Montieren eines Ambosses
CN105798022A (zh) * 2016-05-10 2016-07-27 钱伟 一种用于聚能器的管排敲打装置
WO2021037372A1 (en) 2019-08-29 2021-03-04 Sumitomo SHI FW Energia Oy Spring hammer for rapping a surface
CN112696948A (zh) * 2020-12-25 2021-04-23 常州英索兰换热器有限公司 一种耐腐蚀烟气板式换热器
IT202100012674A1 (it) * 2021-05-17 2022-11-17 Francesco Folli Paraurti per pulizia a percussione di caldaie a vapore

Also Published As

Publication number Publication date
SE380893B (sv) 1975-11-17
FI52147B (ja) 1977-02-28
DE2240250C2 (de) 1982-07-22
JPS4835205A (ja) 1973-05-24
FI52147C (fi) 1977-06-10
SU556739A3 (ru) 1977-04-30
DE2240250A1 (de) 1973-02-22

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