EP0690944B1 - Method of cleaning and maintaining potable water distribution pipe systems - Google Patents

Method of cleaning and maintaining potable water distribution pipe systems Download PDF

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Publication number
EP0690944B1
EP0690944B1 EP94912283A EP94912283A EP0690944B1 EP 0690944 B1 EP0690944 B1 EP 0690944B1 EP 94912283 A EP94912283 A EP 94912283A EP 94912283 A EP94912283 A EP 94912283A EP 0690944 B1 EP0690944 B1 EP 0690944B1
Authority
EP
European Patent Office
Prior art keywords
scale
acid
pipe
cleaning solution
water
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
Application number
EP94912283A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0690944A1 (en
Inventor
Allen C. Hieatt
Jerome H. Ludwig
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.)
HERC Products Inc
Original Assignee
HERC Products Inc
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
Priority claimed from US08/036,188 external-priority patent/US5360488A/en
Application filed by HERC Products Inc filed Critical HERC Products Inc
Publication of EP0690944A1 publication Critical patent/EP0690944A1/en
Application granted granted Critical
Publication of EP0690944B1 publication Critical patent/EP0690944B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/08—Acids
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/265—Carboxylic acids or salts thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/32—Organic compounds containing nitrogen
    • C11D7/3218—Alkanolamines or alkanolimines
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/006—Arrangements or methods for cleaning or refurbishing water conduits
    • C11D2111/20—
EP94912283A 1993-03-23 1994-03-22 Method of cleaning and maintaining potable water distribution pipe systems Expired - Lifetime EP0690944B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US36188 1979-05-04
US08/036,188 US5360488A (en) 1993-03-23 1993-03-23 Method of cleaning and maintaining water distribution pipe systems
US20995394A 1994-03-17 1994-03-17
US209953 1994-03-17
PCT/US1994/003065 WO1994021865A1 (en) 1993-03-23 1994-03-22 Method of cleaning and maintaining potable water distribution pipe systems

Publications (2)

Publication Number Publication Date
EP0690944A1 EP0690944A1 (en) 1996-01-10
EP0690944B1 true EP0690944B1 (en) 1998-09-02

Family

ID=26712917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94912283A Expired - Lifetime EP0690944B1 (en) 1993-03-23 1994-03-22 Method of cleaning and maintaining potable water distribution pipe systems

Country Status (8)

Country Link
EP (1) EP0690944B1 (ja)
JP (1) JP3597193B2 (ja)
AT (1) ATE170583T1 (ja)
AU (1) AU673426B2 (ja)
BR (1) BR9406139A (ja)
CA (1) CA2157916C (ja)
DE (1) DE69413017T2 (ja)
WO (1) WO1994021865A1 (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995035419A1 (en) * 1994-06-20 1995-12-28 H.E.R.C. Products Incorporated Method of cleaning and maintaining potable water distribution pipe systems with a heated cleaning solution
US5755155A (en) * 1997-02-28 1998-05-26 Tetra Laval Holdings & Finance S.A. Aseptic process interface group
JPH11141713A (ja) * 1997-09-05 1999-05-28 Tetra Laval Holdings & Finance Sa 無菌弁組立体
JP2002052322A (ja) * 2000-08-10 2002-02-19 Kurita Water Ind Ltd 洗浄方法
JP4283098B2 (ja) * 2003-12-04 2009-06-24 花王株式会社 金属成分の処理液
JP5200326B2 (ja) * 2006-03-30 2013-06-05 栗田工業株式会社 スケール洗浄剤及びスケール除去方法
WO2016068525A1 (ko) * 2014-10-27 2016-05-06 이기원 스케일 제거 방법
RU2594426C1 (ru) * 2015-02-26 2016-08-20 Акционерное общество "Научно-исследовательский и проектный институт по переработке газа" (АО "НИПИгазпереработка") Способ очистки внутренней поверхности технологического оборудования и трубопроводов (варианты)
CA2969174A1 (en) 2017-06-02 2018-12-02 Fluid Energy Group Ltd. Novel modified acid compositions as alternatives to conventional acids in the oil and gas industry
DE202019003089U1 (de) * 2019-07-24 2020-10-27 Josef Schallameier Entkalkung von unter Druck stehenden Rohrleitungen beliebiger Länge

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3667487A (en) * 1970-12-11 1972-06-06 Richardson Chem Cleaning Servi Integrated chemical cleaning apparatus
US4025359A (en) * 1974-04-01 1977-05-24 Connelly Jr George F Inhibited acid composition for cleaning water systems
DE3066305D1 (en) * 1979-10-24 1984-03-01 Fischer Ag Georg Method and apparatus for rinsing, cleaning, disinfecting and coating a conduit on the interior, especially a water conduit in a new construction
DE3244443C2 (de) * 1982-12-01 1986-11-06 Späne, Rainer, 7888 Rheinfelden Verfahren zur Entfernung von eisen-, calcium- und manganhaltigen Verockerungen und/oder Versinterungen aus zur Wasserversorgung betriebenen Einrichtungen
EP0183894B1 (de) * 1984-11-30 1991-07-24 Feldmann-Chemie GmbH Verwendung von Mischung aus organischen und/oder anorganischen Säuren und/oder sauren Salzen zur Entfernung von eisen- und manganhaltigen Ablagerungen und Verockerungen
FR2602571B1 (fr) * 1986-08-06 1989-02-03 Assainissement Rationnel Pompa Procede de nettoyage d'une conduite notamment d'un reseau de distribution d'eau potable et systeme pour la mise en oeuvre de ce procede
DE3631459A1 (de) * 1986-09-16 1988-03-24 Wegener Paul Verfahren zum innenreinigen von verzweigten rohrleitungen und/oder aggregaten sowie vorrichtung zur durchfuehrung dieses verfahrens
DE3731441A1 (de) * 1987-08-13 1989-02-23 Imhof Elisabeth Verfahren und vorrichtung zur reinigung, korrosionsbeseitigung, ggf. entkalkung und versiegelung von gebaeudewasserinstallationen
DE3828229A1 (de) * 1988-08-19 1990-02-22 Feldmann Chemie Gmbh Mittel zur reinigung, desinfektion und wartung von trinkwasseranlagen und anlagen der getraenkeindustrie
DE4015201A1 (de) * 1990-05-11 1991-11-14 Heimo Wessollek Reiniger fuer trinkwasseranlagen
DE4015202A1 (de) * 1990-05-11 1991-11-14 Heimo Wessollek Reiniger fuer trinkwasseranlagen
US5322635A (en) * 1991-05-16 1994-06-21 H.E.R.C. Incorporated Soap compositions of carboxylic acids and amines useful in removal and prevention of scale
DE4125315C2 (de) * 1991-07-31 1995-09-28 Oertzen Arndt H Gmbh & Co Vorrichtung zum Reinigen von Rohrleitungen

Also Published As

Publication number Publication date
JP3597193B2 (ja) 2004-12-02
EP0690944A1 (en) 1996-01-10
WO1994021865A1 (en) 1994-09-29
AU673426B2 (en) 1996-11-07
DE69413017D1 (de) 1998-10-08
JPH08509908A (ja) 1996-10-22
AU6490394A (en) 1994-10-11
CA2157916C (en) 2000-01-25
CA2157916A1 (en) 1994-09-29
BR9406139A (pt) 1996-01-30
ATE170583T1 (de) 1998-09-15
DE69413017T2 (de) 1999-01-28

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