ES2072555T3 - PROCEDURE FOR REMOVING SLUDGE AND TANKS FROM THE INSIDE OF A HEAT EXCHANGER VESSEL. - Google Patents

PROCEDURE FOR REMOVING SLUDGE AND TANKS FROM THE INSIDE OF A HEAT EXCHANGER VESSEL.

Info

Publication number
ES2072555T3
ES2072555T3 ES91309816T ES91309816T ES2072555T3 ES 2072555 T3 ES2072555 T3 ES 2072555T3 ES 91309816 T ES91309816 T ES 91309816T ES 91309816 T ES91309816 T ES 91309816T ES 2072555 T3 ES2072555 T3 ES 2072555T3
Authority
ES
Spain
Prior art keywords
solution
heat exchanger
secondary side
deposits
slag
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
ES91309816T
Other languages
Spanish (es)
Inventor
Allen Jay Baum
William Edward King
Gregg Daniel Auld
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.)
CBS Corp
Original Assignee
Westinghouse Electric 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of ES2072555T3 publication Critical patent/ES2072555T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
    • F22B37/483—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers specially adapted for nuclear steam generators

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Incineration Of Waste (AREA)
  • Treatment Of Sludge (AREA)

Abstract

SE DESCRIBE UN METODO PARA EXTRAER LA ESCORIA Y DEPOSITOS (32) DEL INTERIOR DE UNA CALDERA INTERCAMBIADORA DE CALOR (1). EL METODO INCLUYE LOS PASOS DE LLENADO DEL INTERIOR DEL LADO SECUNDARIO DEL INTERCAMBIADOR DE CALOR (1) CON UNA SOLUCION ACUOSA DE AGENTE DETERGENTE FORMADA CON AL MENOS UN GRUPO DE LAS SUSTANCIAS SIGUIENTES: SURFACTANTES, DISPERSANTES, TIOXOTROPAS Y AGENTES FLOTANTES, LA RECIRCULACION DE LA SOLUCION DENTRO DEL LADO SECUNDARIO (5) MIENTRAS QUE SIMULTANEAMENTE SE FILTRA ESTA PARA EXTRAER LA ESCORIA Y DEPOSITOS (32) CONTENIDOS EN LA SOLUCION, Y EL DRENAJE DE LA SOLUCION ACUOSA DEL LADO SECUNDARIO (5) MIENTRAS QUE SIMULTANEAMENTE SE INTRODUCEN UNA SUCESION DE PULSOS DE GAS PRESURIZADO EN LA SOLUCION DURANTE LAS FASES DE LLENADO, RECIRCULACION Y DRENAJE PARA CREAR ONDAS DE CHOQUE EN LA SOLUCION QUE DESPRENDAN Y FLUIDICEN LA ESCORIA Y DEPOSITOS (32) PRESENTES DENTRO DEL LADO SECUNDARIO.A METHOD FOR REMOVING SLAG AND DEPOSITS (32) FROM THE INSIDE OF A HEAT EXCHANGER BOILER (1) IS DESCRIBED. THE METHOD INCLUDES THE FILLING STEPS OF THE INTERIOR OF THE SECONDARY SIDE OF THE HEAT EXCHANGER (1) WITH A WATER SOLUTION OF DETERGENT AGENT FORMED WITH AT LEAST ONE GROUP OF THE FOLLOWING SUBSTANCES: SURFACTANTS, DISPERSANTS, LAXOTROPERS AND AGENTS SOLUTION WITHIN THE SECONDARY SIDE (5) WHILE SIMULTANEOUSLY FILTERING THIS TO EXTRACT THE SLAG AND DEPOSITS (32) CONTAINED IN THE SOLUTION, AND THE DRAINAGE OF THE AQUEOUS SOLUTION OF THE SECONDARY SIDE (5) WHILE SIMULTANEOUSLY INTRODUCED A SUCTION OF GAS PRESSURIZED IN THE SOLUTION DURING THE FILLING, RECIRCULATION AND DRAINAGE PHASES TO CREATE SHOCK WAVES IN THE SOLUTION THAT DETACH AND FLUIDIZE THE SLAG AND DEPOSITS (32) PRESENT WITHIN THE SECONDARY SIDE.

ES91309816T 1990-10-29 1991-10-23 PROCEDURE FOR REMOVING SLUDGE AND TANKS FROM THE INSIDE OF A HEAT EXCHANGER VESSEL. Expired - Lifetime ES2072555T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60520090A 1990-10-29 1990-10-29

Publications (1)

Publication Number Publication Date
ES2072555T3 true ES2072555T3 (en) 1995-07-16

Family

ID=24422643

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91309816T Expired - Lifetime ES2072555T3 (en) 1990-10-29 1991-10-23 PROCEDURE FOR REMOVING SLUDGE AND TANKS FROM THE INSIDE OF A HEAT EXCHANGER VESSEL.

Country Status (3)

Country Link
EP (1) EP0484042B1 (en)
JP (1) JP2952090B2 (en)
ES (1) ES2072555T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2389218A1 (en) * 2009-06-02 2012-10-24 Electric Power Research Institute, Inc Dispersant application for clean-up of recirculation paths of a power producing facility during start-up

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5280701A (en) * 1992-08-31 1994-01-25 Environmental Energy Systems, Inc. Waste treatment system and method utilizing pressurized fluid
FR2761803A1 (en) * 1997-04-04 1998-10-09 Framatome Sa Method for removing unwanted material deposits
KR100405156B1 (en) * 2001-05-10 2003-11-12 김선욱 High Pressure Cleaner
WO2017014791A1 (en) 2015-07-23 2017-01-26 Renmatix, Inc. Method and apparatus for removing a fouling substance from a pressurized vessel

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447965A (en) * 1966-10-31 1969-06-03 Dow Chemical Co Removal of copper containing scale from ferrous surfaces
JPS54120449A (en) * 1978-03-10 1979-09-19 Mitsubishi Heavy Ind Ltd Method and apparatus for cleansing minute gaps
US4320528A (en) * 1980-01-23 1982-03-16 Anco Engineers, Inc. Ultrasonic cleaner
US4632705A (en) * 1984-03-20 1986-12-30 Westinghouse Electric Corp. Process for the accelerated cleaning of the restricted areas of the secondary side of a steam generator
DE3533886A1 (en) * 1985-04-16 1987-03-26 Kraftwerk Union Ag CLEANING PROCEDURE
US4921662A (en) * 1988-04-19 1990-05-01 Westinghouse Electric Corp. Pressure pulse cleaning method
JPH04227487A (en) * 1990-05-18 1992-08-17 Westinghouse Electric Corp <We> Method of removing sludge and corrosion product

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2389218A1 (en) * 2009-06-02 2012-10-24 Electric Power Research Institute, Inc Dispersant application for clean-up of recirculation paths of a power producing facility during start-up

Also Published As

Publication number Publication date
JPH04281196A (en) 1992-10-06
EP0484042A1 (en) 1992-05-06
EP0484042B1 (en) 1995-04-26
JP2952090B2 (en) 1999-09-20

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