EP0030484B1 - Appareil porte-sonde pour le contrôle des tubes d'un générateur de vapeur - Google Patents

Appareil porte-sonde pour le contrôle des tubes d'un générateur de vapeur Download PDF

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Publication number
EP0030484B1
EP0030484B1 EP80401589A EP80401589A EP0030484B1 EP 0030484 B1 EP0030484 B1 EP 0030484B1 EP 80401589 A EP80401589 A EP 80401589A EP 80401589 A EP80401589 A EP 80401589A EP 0030484 B1 EP0030484 B1 EP 0030484B1
Authority
EP
European Patent Office
Prior art keywords
tubes
probe
carriage
steam generator
fingers
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
EP80401589A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0030484A1 (fr
Inventor
André Adamowski
Gérard Gallet
Jacques Lhermitte
Maxime Monne
Guy Vautherot
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.)
Intercontrole SA
Original Assignee
Intercontrole SA
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 Intercontrole SA filed Critical Intercontrole SA
Priority to AT80401589T priority Critical patent/ATE5694T1/de
Publication of EP0030484A1 publication Critical patent/EP0030484A1/fr
Application granted granted Critical
Publication of EP0030484B1 publication Critical patent/EP0030484B1/fr
Expired legal-status Critical Current

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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
    • F22B37/005—Positioning apparatus specially adapted therefor

Definitions

  • the probe is carried by a device mounted mobile in the lower chamber of the generator into which all the tubes open.
  • This device carries a guide tube which is brought in front of a beam tube and into which the probe is introduced. After checking a tube, the probe is removed from the tube, the device is moved a distance equal to the distance between two tubes and the probe is introduced into a new tube.
  • the probe-carrying devices produced so far include expandable mandarins which are introduced and fixed in bundle tubes. But with these devices, the control of the tubes placed at the periphery of the beam is often difficult to achieve.
  • a given device is only suitable for checking tubes having a given spacing; if one wishes to control the tubes of a steam generator in which the pitch of the tubes is different, one is obliged to modify the device fairly deeply. Finally, these devices are large and bulky.
  • the probe carrier carriage is held in abutment by the arm against the tubular plate located in this chamber, the fingers or pins being engaged in generator tubes.
  • the means for guiding the probe are then located in front of another tube of the generator which can be controlled.
  • the step-by-step motor is then started, which makes it possible to move the carriage on the tube plate precisely and thus to bring the means for guiding the probe in front of another tube of the generator.
  • the fingers are released from the tube plate, which makes it possible to pivot the carriage using the arm to bring these fingers and the means for guiding the probe in one direction. different. After putting the carriage back against the tube plate, the tubes which are in this direction can be checked.
  • the carriage drive motor being a stepping motor, it is possible to record the movements of the carriage and know at all times the tube being checked.
  • FR-A-2 394 374 describes transport equipment used to set up and remove the control device described above.
  • This equipment comprises an arm or pole which is articulated on a support suitable for being fixed on an opening of the steam generator and carries a trolley which can at will be coupled to the control device or uncoupled from the latter.
  • This equipment obviously does not overcome the drawbacks mentioned above.
  • the subject of the present invention is a probe-carrying device for checking the tubes of a steam generator, which, on the contrary, does not have the said drawbacks.
  • the apparatus comprises an arm articulated on a support suitable for being fixed on an opening of the steam generator, for example its access opening, and which carries a carriage and is characterized in that the arm is telescopic, by having one of its end elements mounted via a ball joint, or equivalent kinematic means, on the support while its other end is articulated on the carriage, and is subjected to the action elastic means tending to bring it into its position of maximum possible elongation, in that the carriage carries means for guiding a probe as well as drive means which are connected to a stepping motor carried by the carriage and are provided at their periphery with fingers or pins, and in that the means for guiding the probe and the fingers or pins are arranged in the same direction, the fingers or pins being separated from one another by distance equal to the pitch of the generator tubes or to a multiple of this not.
  • the stepping motor can be an electric motor or a pneumatic or hydraulic motor which drives the carriage via a transmission.
  • a probe-carrying device which is designated in the drawing generally by the reference 8.
  • the probe-carrying apparatus 8 comprises a telescopic support arm 9 which is controlled by a pneumatic spring and one of the end elements of which is fixed in a ball joint 10 mounted with the interposition of adjustable friction elements not shown, in a cap 11 fixed in the opening 7.
  • the other end of the support arm 9 is connected by a ball joint 12 to a carriage 13.
  • a carriage 13 In this carriage are mounted for rotation two shafts 14 spaced from one another and on which are fixed grooved or notched drums 15.
  • a belt 16, the inner face of which is grooved or notched, passes over the two drums 15; this belt 16 carries fingers 17 which are arranged in the longitudinal median plane of the carriage and spaced from one another by a distance equal to the distance between two adjacent tubes 2.
  • the output shaft of a stepping motor 18 mounted on the carriage 13 is connected to one of the shafts 14 and thus makes it possible to move the belt 16.
  • One of the ends of the carriage 13 carries a support 19 whose axis is perpendicular to the plane of this carriage and in which is fitted a guide sheath 20 in which slides an eddy current probe 21 with its connecting cable.
  • the support 19 is also arranged in the longitudinal median plane of the carriage.
  • a locking finger (not shown) makes it possible to disengage the ball joint 12, that is to say to secure the carriage 13 and the telescopic arm 9, in the position in which these elements are located.
  • the telescopic arm 9 is extended in the direction of the tubes 2 to be examined, so that the support 13 comes close to the tube plate 3, and the arm 9 is moved so as to engage fingers 17 in tubes 2 of the steam generator. We can then introduce the probe 21 into a tube 2 and proceed to check this tube.
  • the tubes 2 are generally arranged in two different directions, most often perpendicular to each other. It is therefore necessary to modify the direction of movement of the carriage 13 to check all of the tubes.
  • the arm 9 is slightly retracted which remains in the axial position by the action of the friction exerted on the ball joint 10 so as to release the fingers 17 of the orifices of the tubes 2 in which they were engaged, and so as to disengage the probe-carrying tube, the tube 9 is pivoted about its axis by the desired angle, the tube 9 is again extended so that the support 13 comes into abutment against the plate 3, and the ball joint is released 12.
  • the support 13 can thus end up being applied against the plate 3 and the fingers 17 come to engage in the orifices of the tubes 2 directed in the second direction of the bundle of tubes.
  • This maneuver is preferably done by first bringing the arm 9 into a position in which it is perpendicular to the tube plate 3; it then suffices to rotate this arm about its axis by an angle equal to that of the two directions of tubes, for example 90 ° if the tubes are oriented in two perpendicular directions.
  • the device can be used regardless of the spacing of the tubes; it suffices for this to modify the spacing of the fingers 17 or to replace the belt 16 by a belt carrying fingers at the appropriate spacing, then to move the support 19 longitudinally.

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)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
EP80401589A 1979-11-30 1980-11-06 Appareil porte-sonde pour le contrôle des tubes d'un générateur de vapeur Expired EP0030484B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80401589T ATE5694T1 (de) 1979-11-30 1980-11-06 Sondentraegervorrichtung zum ueberpruefen der rohre eines dampferzeugers.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7930022 1979-11-30
FR7930022A FR2471026A1 (fr) 1979-11-30 1979-11-30 Appareil porte-sonde pour le controle des tubes d'un generateur de vapeur

Publications (2)

Publication Number Publication Date
EP0030484A1 EP0030484A1 (fr) 1981-06-17
EP0030484B1 true EP0030484B1 (fr) 1983-12-28

Family

ID=9232475

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80401589A Expired EP0030484B1 (fr) 1979-11-30 1980-11-06 Appareil porte-sonde pour le contrôle des tubes d'un générateur de vapeur

Country Status (10)

Country Link
US (1) US4425296A (enExample)
EP (1) EP0030484B1 (enExample)
JP (1) JPS56138298A (enExample)
AT (1) ATE5694T1 (enExample)
CA (1) CA1146344A (enExample)
DE (1) DE3066022D1 (enExample)
ES (1) ES8501561A1 (enExample)
FR (1) FR2471026A1 (enExample)
SU (1) SU971121A3 (enExample)
ZA (1) ZA807450B (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3122660C2 (de) * 1981-06-06 1986-06-19 Brown Boveri Reaktor GmbH, 6800 Mannheim Einrichtung zur Inspektion und/oder zur Reparatur der Rohre eines Dampferzeugers einer Kernkraftanlage
FR2527308A1 (fr) * 1982-05-19 1983-11-25 Intercontrole Sa Dispositif pour l'introduction d'un mobile de positionnement d'un organe sur une plaque tubulaire
US4814702A (en) * 1984-05-31 1989-03-21 Westinghouse Electric Corp. Process for accurately determining the position of the edges of support plates in steam generators
FR2566309B1 (fr) * 1984-06-22 1986-11-07 Barras Provence Dispositif pour positionner selectivement un outil porte par un vehicule se deplacant sur la plaque perforee d'un faisceau de tubes
FR2570314B1 (fr) * 1984-09-20 1987-03-06 Commissariat Energie Atomique Robot porte-outil pour effectuer des interventions a l'interieur d'une enceinte possedant une ouverture d'acces
US4699750A (en) * 1986-02-26 1987-10-13 Westinghouse Electric Corp. Apparatus for storage, retrieval and deployment of drag gages used in fuel assembly inspection
DE3743171A1 (de) * 1987-12-19 1989-06-29 Bbc Reaktor Gmbh Einrichtung zur inspektion und/oder reparatur von in einem rohrboden eines waermetauschers endenden rohren
FR2632441B1 (fr) * 1988-06-03 1992-05-15 Framatome Sa Procede et dispositif de controle des parois laterales d'un alveole de stockage d'un assemblage combustible
US5000681A (en) * 1988-06-30 1991-03-19 Westinghouse Electric Corp. Apparatus and process for simultaneously positioning and oscillating a plurality of probes in the heat exchanger tubes of a nuclear steam generator
US5061176A (en) * 1988-06-30 1991-10-29 Westinghouse Electric Corp. Apparatus and process for simultaneously positioning and oscillating a plurality of probes in the heat exchanger tubes of a nuclear steam generator
US5265129A (en) * 1992-04-08 1993-11-23 R. Brooks Associates, Inc. Support plate inspection device
US5305356B1 (en) * 1992-05-14 1998-09-01 Brooks Support Systems Inc Inspection device
US7314343B2 (en) * 2002-07-22 2008-01-01 Westinghouse Electric Co. Llc Miniature manipulator for servicing the interior of nuclear steam generator tubes
US7762895B2 (en) * 2006-10-02 2010-07-27 Antonio Zamperla S.P.A. Amusement apparatus with movable floor portion
JP5314609B2 (ja) * 2010-01-27 2013-10-16 三菱重工業株式会社 水室内作業装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954136A (en) 1973-03-30 1976-05-04 Siemens Aktiengesellschaft Pressurized-water reactor steam generator heat-exchanger tube access system
FR2309314A1 (fr) 1974-12-05 1976-11-26 Framatome Sa Dispositif de positionnement selectif d'un organe sur une plaque tubulaire
FR2394374A2 (fr) * 1977-06-15 1979-01-12 Framatome Sa Dispositif de positionnement selectif d'un organe sur une plaque tubulaire
DE2557992C3 (de) 1975-12-22 1978-06-29 Kraftwerk Union Ag, 4330 Muelheim Prüfsystemträger zum Prüfen des AnschluBstutzenbereiches bei Druckbehältern, insbesondere Reaktordruckbehältern von Kernkraftwerken mit Ultraschall
DE2640055C3 (de) 1976-09-06 1979-07-19 Kraftwerk Union Ag, 4330 Muelheim Rohrkrfimmermanipulator, insbesondere zur Ultraschallprüfung bei Kernreaktoranlagen
DE2831822C2 (de) 1978-07-19 1980-04-24 Kraftwerk Union Ag, 4330 Muelheim Inspektionseinrichtung für ein Prüfgerät
US4192067A (en) * 1978-10-23 1980-03-11 Westinghouse Electric Corp. Apparatus for cutting through a tube bundle
FR2448143A1 (fr) 1979-02-05 1980-08-29 Intercontrole Sa Procede et dispositif pour retirer un porte-sonde de la chambre inferieure d'un echangeur de chaleur tubulaire verticale

Also Published As

Publication number Publication date
ES497175A0 (es) 1984-11-16
FR2471026A1 (fr) 1981-06-12
FR2471026B1 (enExample) 1985-02-08
ATE5694T1 (de) 1984-01-15
DE3066022D1 (en) 1984-02-02
ZA807450B (en) 1981-11-25
US4425296A (en) 1984-01-10
CA1146344A (fr) 1983-05-17
ES8501561A1 (es) 1984-11-16
JPS56138298A (en) 1981-10-28
EP0030484A1 (fr) 1981-06-17
SU971121A3 (ru) 1982-10-30

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