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ES8702066A1 - Eddy current positioning apparatus for sludge lance. - Google Patents

Eddy current positioning apparatus for sludge lance.

Info

Publication number
ES8702066A1
ES8702066A1 ES539988A ES539988A ES8702066A1 ES 8702066 A1 ES8702066 A1 ES 8702066A1 ES 539988 A ES539988 A ES 539988A ES 539988 A ES539988 A ES 539988A ES 8702066 A1 ES8702066 A1 ES 8702066A1
Authority
ES
Spain
Prior art keywords
tubes
nozzle
positioning apparatus
column
cup
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
ES539988A
Other languages
Spanish (es)
Other versions
ES539988A0 (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
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of ES8702066A1 publication Critical patent/ES8702066A1/en
Publication of ES539988A0 publication Critical patent/ES539988A0/en
Expired 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 or arrangements for removing water, minerals or sludge from boilers ; Arrangement of cleaning apparatus in boilers; Combinations thereof with boilers
    • F22B37/483—Devices or arrangements for removing water, minerals or sludge from boilers ; Arrangement 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)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Manipulator (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

A sludge lance nozzle for removing sludge from between the tubes of a nuclear steam generator includes positioning apparatus mounted on top of the nozzle. The positioning apparatus includes a cylindrical eddy-current sensor mounted inside a cup-shaped non-magnetic electrically insulating spacer, which is in turn mounted in a cup-shaped support member fixedly secured to the nozzle. The tubes are arranged in rows and columns with the axes of the tubes in each column lying in a common column plane. The nozzle is moved perpendicular to the column planes close to one of the rows of tubes. The sensor produces a maximum-amplitude output signal when the sensing axis is coplanar with the column plane of a tube in the closest row of tubes and a minimum-amplitude output signal when the sensing axis is midway between adjacent tubes in the closest row of tubes.
ES539988A 1984-02-03 1985-01-30 Eddy current positioning apparatus for sludge lance. Expired ES8702066A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57667884A 1984-02-03 1984-02-03

Publications (2)

Publication Number Publication Date
ES8702066A1 true ES8702066A1 (en) 1986-12-01
ES539988A0 ES539988A0 (en) 1986-12-01

Family

ID=24305496

Family Applications (1)

Application Number Title Priority Date Filing Date
ES539988A Expired ES8702066A1 (en) 1984-02-03 1985-01-30 Eddy current positioning apparatus for sludge lance.

Country Status (6)

Country Link
EP (1) EP0151404A3 (en)
JP (1) JPS60243403A (en)
KR (1) KR850007859A (en)
CA (1) CA1245115A (en)
ES (1) ES8702066A1 (en)
ZA (1) ZA85308B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE905193A (en) * 1986-07-29 1986-11-17 Smetjet N V DEVICE FOR CLEANING A STEAM GENERATOR WITH A WATER JET.
JPH0655084U (en) * 1992-12-21 1994-07-26 三菱重工業株式会社 Automatic heat exchanger pipe base cleaning device
JP5985395B2 (en) * 2009-11-03 2016-09-06 ウエスチングハウス・エレクトリック・カンパニー・エルエルシー Small sludge lance device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543078C3 (en) * 1975-09-26 1979-11-22 Vibro-Meter S.A. Fabrique D'appareils De Mesure Et D'enregistrement Electroniques, Freiburg (Schweiz) Measuring arrangement with inductive distance sensor
US4124792A (en) * 1977-07-25 1978-11-07 The United States Of America As Represented By The Secretary Of The Army Eddy current probe subsystem
US4206391A (en) * 1978-09-11 1980-06-03 Gard, Inc. Apparatus for tracking a seam
FR2514108B1 (en) * 1981-10-06 1986-06-13 Framatome Sa PROCESS AND DEVICE FOR REMOVING SLUDGE FROM THE TUBULAR PLATE OF STEAM GENERATORS

Also Published As

Publication number Publication date
KR850007859A (en) 1985-12-09
EP0151404A2 (en) 1985-08-14
JPS60243403A (en) 1985-12-03
EP0151404A3 (en) 1985-10-16
JPH0351961B2 (en) 1991-08-08
ZA85308B (en) 1986-03-26
ES539988A0 (en) 1986-12-01
CA1245115A (en) 1988-11-22

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