ES8507722A1 - Decontamination method and apparatus. - Google Patents

Decontamination method and apparatus.

Info

Publication number
ES8507722A1
ES8507722A1 ES495960A ES495960A ES8507722A1 ES 8507722 A1 ES8507722 A1 ES 8507722A1 ES 495960 A ES495960 A ES 495960A ES 495960 A ES495960 A ES 495960A ES 8507722 A1 ES8507722 A1 ES 8507722A1
Authority
ES
Spain
Prior art keywords
contaminants
shaft
wash water
wash
hone
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
Application number
ES495960A
Other languages
Spanish (es)
Other versions
ES495960A0 (en
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
Priority claimed from US06/085,444 external-priority patent/US4326317A/en
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of ES8507722A1 publication Critical patent/ES8507722A1/en
Publication of ES495960A0 publication Critical patent/ES495960A0/en
Granted 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
    • F22B37/002—Component parts or details of steam boilers specially adapted for nuclear steam generators, e.g. maintenance, repairing or inspecting equipment not otherwise provided for
    • F22B37/003—Maintenance, repairing or inspecting equipment positioned in or via the headers
    • 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
    • F28G3/00—Rotary appliances
    • F28G3/08—Rotary appliances having coiled wire tools, i.e. basket type
    • 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
    • F28G3/00—Rotary appliances
    • F28G3/16—Rotary appliances using jets of fluid for removing debris
    • F28G3/163—Rotary appliances using jets of fluid for removing debris from internal surfaces of heat exchange conduits
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/001—Decontamination of contaminated objects, apparatus, clothes, food; Preventing contamination thereof
    • G21F9/005—Decontamination of the surface of objects by ablation

Abstract

A method and apparatus for decontaminating tubes in a nuclear stream generator wherein a hone (52) mounted on a flexible tubular drive shaft is inserted into a tube and rotated while wash water is sprayed from the tubular shaft to wash away contaminants removed by the hone (52). The shaft extends through conduit (58) engaging the open end of the tube being cleaned to receive the wash water and contaminants therefrom. A cleaning mechanism (60) is disposed at the other end of the conduit (58) to discharge the wash water and contaminants and to wash and wipe the shaft while it is moved axially. With this method and arrangement the contaminants removed from the tubes are removed without contacting and contaminating any other part of the steam generator.
ES495960A 1979-10-16 1980-10-15 METHOD AND ITS CORRESPONDING APPARATUS FOR DECONTAMINATING TUBES IN A NUCLEAR STEAM GENERATOR Granted ES495960A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8544579A 1979-10-16 1979-10-16
US06/085,444 US4326317A (en) 1979-10-16 1979-10-16 Decontamination apparatus

Publications (2)

Publication Number Publication Date
ES8507722A1 true ES8507722A1 (en) 1985-09-01
ES495960A0 ES495960A0 (en) 1985-09-01

Family

ID=26772728

Family Applications (1)

Application Number Title Priority Date Filing Date
ES495960A Granted ES495960A0 (en) 1979-10-16 1980-10-15 METHOD AND ITS CORRESPONDING APPARATUS FOR DECONTAMINATING TUBES IN A NUCLEAR STEAM GENERATOR

Country Status (4)

Country Link
EP (1) EP0027388B1 (en)
AR (1) AR224423A1 (en)
DE (1) DE3063171D1 (en)
ES (1) ES495960A0 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534410A1 (en) * 1982-10-12 1984-04-13 Sfermi Process and device for decontaminating a steam generator attached to a nuclear reactor.
EP0116663A1 (en) * 1983-02-19 1984-08-29 NTG Neue Technologien GmbH & Co. KG Process for decontaminating the internal surfaces of a reactor vessel
DE3430384A1 (en) * 1984-08-17 1986-02-20 Kraftwerk Union AG, 4330 Mülheim METHOD AND DEVICE FOR ELECTROPOLISHING THE INTERIOR SURFACE OF U-SHAPED HEAT EXCHANGER TUBES
FR2613835B1 (en) * 1987-04-13 1989-10-27 Framatome Sa DEVICE FOR MOVING AND ROTATING A TOOL WITHIN A TUBE AND ITS USE FOR CONTROLLING THE TUBES OF A STEAM GENERATOR
FR2615574B1 (en) * 1987-05-19 1989-08-18 Intercontrole Sa INSTALLATION FOR REMOTELY CONTROLLING THE TRANSLATION OF AN ORGAN, SUCH AS A MICRO-HAMMER TOOL IN A TUBE, ESPECIALLY A STEAM GENERATOR
US4856354A (en) * 1988-03-07 1989-08-15 Combustion Engineering, Inc. Inspection probe manipulator
DE8813215U1 (en) * 1988-10-21 1988-12-15 Bbc Reaktor Gmbh
FR2649923B1 (en) * 1989-06-28 1992-04-24 Framatome Sa WORKING TOOLS WITHIN A TUBULAR ELEMENT
WO1998045659A1 (en) * 1997-04-04 1998-10-15 Valery Ivanovich Chernyshev Mechanical surface treatment of chemical equipment and instrumentation to clean them from metal-containing sludge belonging to the platinum group
DE10141304A1 (en) * 2001-08-28 2003-03-20 Framatome Anp Gmbh Reduction of corrosion erosion, in feeder pipes within primary loop of nuclear power plant, involves reducing surface roughness of primary side inner walls of heat exchanger tubes of steam generator using adhesive

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR401088A (en) * 1909-03-22 1909-08-18 Wasily Schilow Device for cleaning the internal wall of boiler tubes
US2090174A (en) * 1935-08-07 1937-08-17 Albright William Fredrick Flexible drive shaft
GB1112107A (en) * 1965-06-11 1968-05-01 Williams & Son Ltd H Improvements in or relating to de-scaling and dust removing apparatus
AT336926B (en) * 1972-12-22 1977-06-10 Siemens Ag INSPECTION AND REPAIR EQUIPMENT FOR STEAM GENERATORS
US4172492A (en) * 1977-10-13 1979-10-30 The Babcock & Wilcox Company Apparatus for the in situ inspection of tubes while submerged in a liquid

Also Published As

Publication number Publication date
EP0027388B1 (en) 1983-05-11
EP0027388A1 (en) 1981-04-22
AR224423A1 (en) 1981-11-30
DE3063171D1 (en) 1983-06-16
ES495960A0 (en) 1985-09-01

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Legal Events

Date Code Title Description
MM4A Patent lapsed

Effective date: 19960506