EP0151404A3 - Eddy current positioning apparatus for sludge lance - Google Patents

Eddy current positioning apparatus for sludge lance Download PDF

Info

Publication number
EP0151404A3
EP0151404A3 EP85100365A EP85100365A EP0151404A3 EP 0151404 A3 EP0151404 A3 EP 0151404A3 EP 85100365 A EP85100365 A EP 85100365A EP 85100365 A EP85100365 A EP 85100365A EP 0151404 A3 EP0151404 A3 EP 0151404A3
Authority
EP
European Patent Office
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.)
Withdrawn
Application number
EP85100365A
Other languages
German (de)
French (fr)
Other versions
EP0151404A2 (en
Inventor
Gregory Lee Calhoun
Clark Bennett Candee
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 EP0151404A2 publication Critical patent/EP0151404A2/en
Publication of EP0151404A3 publication Critical patent/EP0151404A3/en
Withdrawn legal-status Critical Current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

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.
EP85100365A 1984-02-03 1985-01-16 Eddy current positioning apparatus for sludge lance Withdrawn EP0151404A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57667884A 1984-02-03 1984-02-03
US576678 1984-02-03

Publications (2)

Publication Number Publication Date
EP0151404A2 EP0151404A2 (en) 1985-08-14
EP0151404A3 true EP0151404A3 (en) 1985-10-16

Family

ID=24305496

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85100365A Withdrawn EP0151404A3 (en) 1984-02-03 1985-01-16 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
KR101734601B1 (en) * 2009-11-03 2017-05-24 웨스팅하우스 일렉트릭 컴퍼니 엘엘씨 Miniature sludge lance apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543078A1 (en) * 1975-09-26 1977-03-31 Vibro Meter Ag Inductive transducer for measuring small mechanical offsets - checks internal combustion engine piston ring conditions in situ
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
EP0077255A1 (en) * 1981-10-06 1983-04-20 Framatome Method and apparatus for removing sludge from the tube sheets of steam generators

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543078A1 (en) * 1975-09-26 1977-03-31 Vibro Meter Ag Inductive transducer for measuring small mechanical offsets - checks internal combustion engine piston ring conditions in situ
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
EP0077255A1 (en) * 1981-10-06 1983-04-20 Framatome Method and apparatus for removing sludge from the tube sheets of steam generators

Also Published As

Publication number Publication date
JPH0351961B2 (en) 1991-08-08
ZA85308B (en) 1986-03-26
KR850007859A (en) 1985-12-09
CA1245115A (en) 1988-11-22
ES539988A0 (en) 1986-12-01
ES8702066A1 (en) 1986-12-01
EP0151404A2 (en) 1985-08-14
JPS60243403A (en) 1985-12-03

Similar Documents

Publication Publication Date Title
IT8223519A0 (en) MEASURING DEVICE FOR DETECTION OF THE TRANSVERSAL DIMENSION OF A MOVING WIRE WITH THE HELP OF AN ARRAY OF IMAGE SENSORS.
GB2155185B (en) Sensor array for toxic gas detection
NO863440L (en) A COMPUTER-BASED ELECTROMAGNETIC INTERIOR DIAMETER TUBULAR INSPECTION DEVICE.
GB8625120D0 (en) Focusing state detection apparatus
DE3666110D1 (en) Linearly structured multiple aperture and beam blanking electrodes for the production of a multiplicity of individually blankable corpuscular beam probes in a lithography apparatus
ES8404098A1 (en) Apparatus for inspecting a heat exchanger tube.
EP0243157A3 (en) Image pickup apparatus
EP0151404A3 (en) Eddy current positioning apparatus for sludge lance
GB2159365B (en) Method for increasing resolution of array sensor and system therefor
ZA831162B (en) A device for the inspection of fuel assemblies,in particular for detecting failed fuel rods inside non-disassembled fuel assemblies for water-cooled reactors
IL82948A (en) Charge transfer device(ctd)eliminating the background level of a detected signal,detection structure and method of using such a ctd
GB2199661B (en) Trasmitting energy through an apparatus usable for subsoil prospection
ES2014426B3 (en) PRESSURE DEVICE FOR A BEAM OF RODS OF A NUCLEAR FUEL ASSEMBLY.
IT1197360B (en) TEST OF AN ANALOG PROCESS CONTROL SYSTEM
GB2169710B (en) Process and apparatus for measuring the distance between a target and a sensor
ES2021110B3 (en) ENERGY PLANT WITH AN EVACUATION SYSTEM
JPS56110069A (en) Cable tracking method
FR2622977B1 (en) NUCLEAR MAGNETISM DIAGRAPHY PROCESS AND INSTRUMENT
JPS55116224A (en) Earthquake detector
JPS6480920A (en) Focus detector
BE892769A (en) METHOD AND DEVICE FOR THE CONTACTLESS GUIDANCE OF NON-DESTRUCTIVE TUBE TESTING APPARATUS
JPS5742281A (en) Head switching signal generator
JPS5757256A (en) Method for arranging probe
ES1002914Y (en) MUNECO WITH MOBILE PORTIONS INTERACTIVE WITH AN EXTERNAL SIGNAL OF OPERATION
JPS52135759A (en) Method of detecting scanning deflection

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT LI SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT LI SE

17P Request for examination filed

Effective date: 19860313

17Q First examination report despatched

Effective date: 19861015

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19881002

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CANDEE, CLARK BENNETT

Inventor name: CALHOUN, GREGORY LEE