EP0014616B1 - Procédé et dispositif pour retirer de ou pour remettre en place dans la chambre inférieure d'un échangeur de chaleur tubulaire un porte-sonde - Google Patents

Procédé et dispositif pour retirer de ou pour remettre en place dans la chambre inférieure d'un échangeur de chaleur tubulaire un porte-sonde Download PDF

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Publication number
EP0014616B1
EP0014616B1 EP80400095A EP80400095A EP0014616B1 EP 0014616 B1 EP0014616 B1 EP 0014616B1 EP 80400095 A EP80400095 A EP 80400095A EP 80400095 A EP80400095 A EP 80400095A EP 0014616 B1 EP0014616 B1 EP 0014616B1
Authority
EP
European Patent Office
Prior art keywords
tube
sensor
tubes
dummy
exchanger
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
EP80400095A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0014616A1 (fr
Inventor
Andrev Adamowski
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 AT80400095T priority Critical patent/ATE1313T1/de
Publication of EP0014616A1 publication Critical patent/EP0014616A1/fr
Application granted granted Critical
Publication of EP0014616B1 publication Critical patent/EP0014616B1/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
    • F22B37/006—Walking equipment, e.g. walking platforms suspended at the tube sheet

Definitions

  • the probe is carried by a device mounted mobile in the lower chamber of the exchanger into which all the tubes open.
  • This device is fixed to the exchanger using expandable mandrels which are inserted and fixed in tubes of the tube bundle, and carries a guide tube which is located in front of another tube of the bundle and in 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 present invention relates in particular to a method by which it is possible to remove the probe holder device from the lower chamber of a tubular exchanger without having to enter the chamber.
  • the method according to the invention is characterized in that, from the access opening to the chamber, the end of a false is introduced into the guide tube and into the water tube which faces it probe constituted by a tube made of a relatively rigid material, but which can nevertheless bend slightly, provided at said end with a means of attachment to the water tube controllable from the other end of the tube of the false probe, which 'said end is fixed to the water tube, and the mandrels of the probe holder device are loosened, so that this device slides along the tube of the false probe towards the access opening and can thus be evacuated to the outside.
  • the present invention also relates to a method for replacing the probe holder device in the lower chamber of the tubular exchanger.
  • This process is characterized in that one or more false tubes are attached to one or more water tubes of the exchanger, each consisting of a tube made of a relatively rigid material, but which can nevertheless bend slightly, provided with one from its ends of a means of attachment to the corresponding water tube and controllable from the other end of the tube, of the false probe, that the tubes of the false probes are threaded into guide tubes of the device , that it is raised by pushing on the bundle of cables and conduits which connects it to an external control station, or on the guide tubes, until the mandrels of the device engage in water tubes, and in that it ensures the expansion of these mandrels.
  • the invention finally relates to a device or false probe for the implementation of the above methods.
  • This device is characterized in that it consists of a tube, made of a relatively rigid material, but which can bend slightly, which is provided at one of its ends, with a means of attachment to a water tube , for example by expansion, controllable from the opposite end of the tube of the false probe.
  • FIG. 1 we see at 1 a vertical heat exchanger through which water tubes 2 pass, the ends of which are fixed to tubular plates, the lower plate being represented at 3. At each of their ends, the tubes 2 open into rooms, the lower room of which is visible at 4 and is connected to a water departure or arrival pipe 5; chamber 4 is provided with an access opening 6 normally closed in leaktight manner.
  • the reference 7 designates a secondary fluid inlet or outlet conduit.
  • a probe-carrying device which is designated in the drawing of a generally by the reference 8. This device is normally fixed to the wall 3 but, for clarity of the drawing, is shown separate therefrom.
  • the apparatus 8 comprises a frame 9 with respect to which a cross member 10 is movable both longitudinally, as indicated by the arrow f 1 , and vertically.
  • the cross-member 10 carries an expandable mandrel 1 ta which can be controlled by a jack 12a and on either side of which there are two stops 13.
  • a second cross member 14, perpendicular to the cross member 9, is movable both longitudinally, as indicated by the arrow f 2 , and vertically, at each of its ends, the cross member 14 carries an expandable mandrel 11b, which can be controlled by a cylinder 12b, and on either side of which there are two guide tubes 15; these tubes are spaced from the mandrel 1 1b by a distance equal to that separating two adjacent tubes 2.
  • the tubes 15 can be connected to tubes 15 'passing through the opening 6.
  • the device 8 is fixed to the tube plate 3, the mandrels 11a and 11b being engaged in tubes 2 and expanded so as to press on the internal face of these tubes.
  • An eddy current probe is then introduced into a guide tube 15 which is located opposite a tube 2 and the latter tube is checked.
  • the mandrels 1b are loosened for example, the cross member 14 is lowered and this cross member is moved in the direction of the arrow f 2 so that these mandrels and at least one of the guide tubes 15 are found opposite tubes 2; the cross-member 14 is raised so that the mandrels engage again in tubes 2 and the expansion of these mandrels is ensured.
  • the mandrels 11a are loosened, the crosspiece 10 is lowered, the entire apparatus is moved in the direction of prior movement of the crosspiece 14, the crosspiece 10 is reassembled and the mandrels 11a are fixed in position. It only remains to check one of the tubes which are then opposite a guide tube 15. All of these operations are remotely controlled, from a control station located outside the exchanger 1 , the various conductors and conduits for supplying fluid to the jacks being grouped in a bundle 16 which passes in leaktight manner the cover closing the access opening 6.
  • the dummy probe is constituted by a relatively rigid, but bendable, tube 18, at one end of which is attached a slotted expandable mandrel 19 whose different elements can be moved apart. one from the other by a cone 20; this can be moved, against the action of a spring 21 in the direction corresponding to the expansion of the mandrel, by a cable 22 extending inside the tube 18 and which can be actuated at the end of this tube opposite the mandrel.
  • a spring 21 in the direction corresponding to the expansion of the mandrel
  • a cable 22 extending inside the tube 18 and which can be actuated at the end of this tube opposite the mandrel.
  • the tube 18 carries at its end a expandable sleeve 23 projecting from the tube and is connected at its other end to a source of pressurized fluid via a valve 24
  • the valve 24 is opened so that the sleeve expands, which secures the tube 18 to this tube 2.
  • the tube 18 carries at its end a boss on which a locking arm 25 is pivotally mounted at 26.
  • This arm is in the form of a gutter so as to be able to take a retracted position in which it is applied to the tube 18.
  • a spring 27 tends to bring it into a position in which it is perpendicular to the tube.
  • a cable 28 which passes through the tube 18 and the end of which is fixed to the arm 25, makes it possible to maintain this arm in the retracted position.
  • the false probe is threaded over the entire length of the tube 2 until it exits at the other end of the latter.
  • the arm 25 is released which pivots and is placed transversely, which prevents it from entering the tube 2.
  • the false probe is thus immobilized relative to the tube.
  • the mandrels 11 a and 11 b are released.
  • the device 8 is thus detached from the plate 3 and slides along the tube 18 which brings it in the vicinity of the opening 6 through which it can then be extracted to be repaired.
  • the tube 15 'slides on the tube 18 and the descent of the device 8 can be braked by acting on this tube 15'.
  • false probes such as those shown in Figures 2, 3 and 4 are fixed in four tubes 2, the positions and spacings of which correspond to those of the four guide tubes 15. Then, the device 8 being sufficient outside the chamber 4, thread the tubes 18 of these false probes into the guide tubes 15 and push on the beam 16 or on the tube 15 'to bring the device 8 close to the plate 3 whose mandrels 11 a and 11 b engage in the tubes 2, and to ensure the expansion of these mandrels.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Examining Or Testing Airtightness (AREA)
EP80400095A 1979-02-05 1980-01-22 Procédé et dispositif pour retirer de ou pour remettre en place dans la chambre inférieure d'un échangeur de chaleur tubulaire un porte-sonde Expired EP0014616B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80400095T ATE1313T1 (de) 1979-02-05 1980-01-22 Verfahren und vorrichtung zum herausnehmen und wiedereinsetzen eines sondentraegers, der in einer unteren kammer eines durchlaufrohre aufweisenden waermetauschers angeordnet ist.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7903408 1979-02-05
FR7903408A FR2448143A1 (fr) 1979-02-05 1979-02-05 Procede et dispositif pour retirer un porte-sonde de la chambre inferieure d'un echangeur de chaleur tubulaire verticale

Publications (2)

Publication Number Publication Date
EP0014616A1 EP0014616A1 (fr) 1980-08-20
EP0014616B1 true EP0014616B1 (fr) 1982-07-07

Family

ID=9221819

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400095A Expired EP0014616B1 (fr) 1979-02-05 1980-01-22 Procédé et dispositif pour retirer de ou pour remettre en place dans la chambre inférieure d'un échangeur de chaleur tubulaire un porte-sonde

Country Status (9)

Country Link
US (1) US4298054A (enrdf_load_stackoverflow)
EP (1) EP0014616B1 (enrdf_load_stackoverflow)
JP (1) JPS55132928A (enrdf_load_stackoverflow)
AT (1) ATE1313T1 (enrdf_load_stackoverflow)
CA (1) CA1126490A (enrdf_load_stackoverflow)
DE (1) DE3060638D1 (enrdf_load_stackoverflow)
ES (1) ES488245A1 (enrdf_load_stackoverflow)
FR (1) FR2448143A1 (enrdf_load_stackoverflow)
ZA (1) ZA80665B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9209943U1 (de) * 1992-07-30 1993-12-09 Siemens AG, 80333 München Manipulator zur Inspektion von über Leitern erreichbaren Anlagenteilen

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471026A1 (fr) 1979-11-30 1981-06-12 Intercontrole Sa Appareil porte-sonde pour le controle des tubes d'un generateur de vapeur
FR2495816A1 (fr) * 1980-12-05 1982-06-11 Framatome Sa Machine pour le controle sur leur poste de stockage des equipements internes d'un reacteur nucleaire
FR2503920B1 (fr) * 1981-04-08 1987-08-21 Intercontrole Sa Dispositif pour le positionnement d'un organe en vis-a-vis des perforations d'une plaque
FR2503921A1 (fr) * 1981-04-10 1982-10-15 Commissariat Energie Atomique Dispositif pour le positionnement d'un organe en vis-a-vis des perforations d'une plaque et procede de montage a distance d'un tel dispositif
FR2504306A1 (fr) * 1981-04-17 1982-10-22 Framatome Sa Dispositif de mise en place et d'extraction d'un moyen de controle ou d'un outil dans un equipement recepteur
US4613476A (en) * 1982-05-10 1986-09-23 Jacobson Earl Bruce Radiation attenuating fluid work environment
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
FR2537327B1 (fr) * 1982-12-07 1988-07-22 Thome Paul Telemanipulateur pour generateurs de vapeur de centrales nucleaires
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
US4752127A (en) * 1985-03-13 1988-06-21 Westinghouse Electric Corp. Optical tube inspection apparatus
JPH086894B2 (ja) * 1985-03-22 1996-01-29 株式会社日立製作所 熱交換器水室内作業ロボツトの移動・保持装置
DE8712772U1 (de) * 1987-09-22 1989-01-19 Siemens AG, 1000 Berlin und 8000 München Gerät zur Inspektion und/oder Reparatur von Wärmetauscherrohren
US4903392A (en) * 1988-06-22 1990-02-27 Westinghouse Electric Corp. Method for removing a metallic plug from a tube by simultaneously heating and stretching the plug
US7314343B2 (en) * 2002-07-22 2008-01-01 Westinghouse Electric Co. Llc Miniature manipulator for servicing the interior of nuclear steam generator tubes
US8746089B2 (en) * 2009-01-19 2014-06-10 Babcock & Wilcox Nuclear Energy, Inc. Apparatus for automated positioning of eddy current test probe
JP5634073B2 (ja) * 2010-01-15 2014-12-03 三菱重工業株式会社 水室内作業装置および水室内作業方法
US11346288B2 (en) 2016-09-21 2022-05-31 Raytheon Technologies Corporation Gas turbine engine with heat exchanger diagnostics

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT336926B (de) * 1972-12-22 1977-06-10 Siemens Ag Inspektions- und reparatureinrichtung fur dampferzeuger
JPS5157489A (en) * 1974-11-15 1976-05-19 Mitsubishi Heavy Ind Ltd Jidokensasochino kontorooruhoho
FR2394374A2 (fr) * 1977-06-15 1979-01-12 Framatome Sa Dispositif de positionnement selectif d'un organe sur une plaque tubulaire
US4149932A (en) * 1977-03-25 1979-04-17 Westinghouse Electric Corp. Emergency disconnect means for the manipulator arm of a nuclear reactor vessel inspection apparatus
US4205939A (en) * 1978-01-30 1980-06-03 Westinghouse Electric Corp. Apparatus for remotely repairing tubes in a steam generator
US4172402A (en) * 1978-04-24 1979-10-30 Choice Cut Corporation Band wheel mounting device for band saw
DE2831822C2 (de) * 1978-07-19 1980-04-24 Kraftwerk Union Ag, 4330 Muelheim Inspektionseinrichtung für ein Prüfgerät

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9209943U1 (de) * 1992-07-30 1993-12-09 Siemens AG, 80333 München Manipulator zur Inspektion von über Leitern erreichbaren Anlagenteilen

Also Published As

Publication number Publication date
DE3060638D1 (en) 1982-08-26
JPS55132928A (en) 1980-10-16
CA1126490A (fr) 1982-06-29
FR2448143B1 (enrdf_load_stackoverflow) 1981-02-27
ES488245A1 (es) 1980-09-16
US4298054A (en) 1981-11-03
EP0014616A1 (fr) 1980-08-20
ZA80665B (en) 1981-01-28
FR2448143A1 (fr) 1980-08-29
ATE1313T1 (de) 1982-07-15

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