EP1124092A2 - Lance flexible pemettant d'effectuer des opérations ou des contrôles sur la plaque tubulaire d'un générateur de vapeur - Google Patents

Lance flexible pemettant d'effectuer des opérations ou des contrôles sur la plaque tubulaire d'un générateur de vapeur Download PDF

Info

Publication number
EP1124092A2
EP1124092A2 EP01101966A EP01101966A EP1124092A2 EP 1124092 A2 EP1124092 A2 EP 1124092A2 EP 01101966 A EP01101966 A EP 01101966A EP 01101966 A EP01101966 A EP 01101966A EP 1124092 A2 EP1124092 A2 EP 1124092A2
Authority
EP
European Patent Office
Prior art keywords
band
flexible lance
flexible
openings
longitudinal direction
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.)
Granted
Application number
EP01101966A
Other languages
German (de)
English (en)
Other versions
EP1124092B1 (fr
EP1124092A3 (fr
Inventor
Bruno Dipl.-Ing. Dippel
Konrad Meier-Hynek
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.)
Areva GmbH
Original Assignee
Siemens AG
Framatome ANP GmbH
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 Siemens AG, Framatome ANP GmbH filed Critical Siemens AG
Publication of EP1124092A2 publication Critical patent/EP1124092A2/fr
Publication of EP1124092A3 publication Critical patent/EP1124092A3/fr
Application granted granted Critical
Publication of EP1124092B1 publication Critical patent/EP1124092B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F22B37/02—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

Definitions

  • the invention relates to a flexible lance for processing or inspecting a tube sheet of a steam generator, with a flexible metallic first band, the one extending in its longitudinal direction first formation to accommodate a supply line for one outdoors Machining or inspection head arranged at the end of the first belt having.
  • EP 0 815 388 B1 For guiding a supply line for an inspection head and / or for guiding a liquid supply line for the mentioned spraying process is from EP 0 815 388 B1 known a flexible lance.
  • This has a flexible metallic Tape on that in its longitudinal direction one after the other has arranged recesses through which a flexible supply line for one located at the free end of the tape Machining or inspection head is threaded.
  • This tape has the disadvantage that the supply line is insufficient protected against damage from sharp edges etc. is.
  • the invention is therefore based on the object specify flexible lance that is easy to manufacture and where the supply line is still damaged, for example on sharp edges in the steam generator formed deposits, is protected.
  • This task is based on the flexible mentioned at the beginning Lance according to the invention solved in that the flexible Lance has a flexible metallic second band, which arranged in the longitudinal direction and with the first band is connected to the open side of the first formation covered by the second volume forming a guide channel is.
  • the first formation on the one hand and the second band on the other can be a largely closed guide channel are formed in the one or more supply lines guided safely against damage along the flexible lance can be.
  • the first band and the second ligament is connected by a first tendon.
  • a tendon encompasses everything, especially reversible or elastic, pliable along the Longitudinal extension element understood. With the tendon the ligaments can be connected to one another in a simple manner, without the flexibility of the lance suffering would.
  • the two bands are connected alternately the first ligament and the second ligament on the first tendon on.
  • the first tendon is through the first ligament and / or threaded the second ribbon through.
  • the first band preferably has a first row Longitudinally arranged openings on and the second band a second row in a row in the longitudinal direction arranged openings.
  • the first tendon then preferably through the openings of the two Led tapes.
  • the first is Band between its openings perpendicular to the longitudinal direction molded, and the second band is between its openings molded in the opposite direction. This makes it possible the first tendon to connect the two ligaments in production-technically particularly simple way through the openings respectively.
  • the flexible Lance a second tendon that is spaced from the first Tendon and in the same way as it is attached.
  • the both tendons are preferably symmetrical on both sides of the Guide channel arranged.
  • the two are with two tendons Bands can be connected to one another in a particularly secure and reliable manner and the guide channel formed is particularly safe after lockable on the outside.
  • the first Tendon or one of the tendons has a higher bending stiffness than one of the tapes or as both tapes together.
  • the tendon does not only serve as a connecting element for the two tapes, but also increasing theirs Stiffness. This prevents the tapes, in particular with high feed forces, bend sideways. This is particularly important if the supply line or one of the supply lines is an optical fiber is. Such glass fibers are used to clean the one to be cleaned Spotlight and / or observe. Fiberglass have the property when falling below a certain minimum radius of curvature. Because of the increased This is certain of the flexural rigidity of the tendon or tendons avoided. A lateral buckling of the straps could also cause them to get permanent deformations. This danger is also prevented by the tendons.
  • the first tendon or one of the tendons is as Wire, in particular as spring steel wire, as rope, in particular formed as a steel cable and / or as a fiberglass element.
  • a Bowden cable can also be used as a tendon inside pull and push cable to drive one optionally available on the processing or inspection head Mountain or gripping pliers can serve.
  • the second band of the flexible lance in the area of the guide channel molded is to form the guide channel with a lengthways extending second formation to the other side shaped like the first band. This makes it particularly spacious Guide channel formed.
  • the second shape is preferably above the open one Arranged side of the first formation that the formed Guide channel - viewed in a cross-sectional plane through the bands - essentially symmetrical on both sides the ligaments extends.
  • the supply line to lead in the flexible lance in such a way that it comes to lie on a line, preferably in the middle, on which the flexible lance has a neutral fiber or would have. This ensures that the supply line especially when the flexible lance is bent to the side little is used.
  • the first shape and optionally the second formation arranged one behind the other in the longitudinal direction Recesses, in particular slots.
  • slot width and slot spacing can have a minimal radius of curvature can be set. At the minimum radius of curvature, where the front edges or surfaces of the Slot openings come into contact with one another is another Bending the flexible lance significantly more difficult, i.e. lateral kinking largely prevented. This will the effect already achieved by the tendon or tendons reinforced.
  • a flexible lance 1 which consists of a flexible metallic first band 3 and a flexible metallic second band 5 is composed.
  • the two Bands 3, 5 consist of chromium-nickel steel with a wall thickness between about 0.1 and 0.2 mm. The width b of the tapes is about 30 mm.
  • the first band 3 a first expression or formation 13.
  • Opposite has the second band 5 in the opposite direction a second formation 15.
  • the two bands 3, 5 are with their flat sides flush along their longitudinal direction connected connected. It is through the two forms 13, 15 a guide channel 16 is formed in the supply lines 17, 19, for example an optical glass fiber, a capillary or a tube or an electrical one Cables are guided.
  • the guide channel 16 is after both Completed on each side by one of the bands 3, 5, so that the supply lines 17, 19 from mechanical damage are protected.
  • the two supply lines 17, 19 are symmetrical on both sides a center axis 21 arranged.
  • the two ligaments 3, 5 are connected to one another by two tendons 27, 29 connected.
  • the two tendons 27, 29 are symmetrical attached to the center axis 21 on both sides.
  • Your mutual Distance a is approximately 15 mm.
  • the two bands 3, 5 alternately loop around each other each of the two tendons 27, 29 so that on each of the two Tendons 27, 29 alternately the first band 3 and the second Volume 5 is present.
  • the two bands 3, 5 in connected with each other in a simple and flexible manner.
  • each of the Formations 13, 15 is of slot-like recesses 33 or 35 interrupted, which avoids that the flexible Lance 1 due to the existing formations 13, 15 is excessively stiff.
  • the distance d of - in the longitudinal direction 31 - only a few tenths Millimeter wide and laser-cut slot-like recesses 33, 35 is about 5 mm, the slot width about 7 mm. This results in a minimal radius of curvature of approx. 40 mm.
  • FIG. 2 it can also be seen how the belts 3, 5 by means of the tendons 27, 29 not shown in this figure are interconnected.
  • the first volume 3 a first row 43 equidistantly one behind the other in the longitudinal direction arranged rectangular openings 44.
  • the second band 5 has a second row 45 in the longitudinal direction 31 equidistantly arranged one behind the other Openings 46 on.
  • the areas 48 (see also FIG 3) or 49 (see also FIG. 4) between the openings 44 and 46 of the first band 3 and the second band 5 are in shaped in the opposite direction.
  • the cross section of the rectangular openings 44, 46 is approximately 3.5 x 4.5 mm.
  • the two bands 3, 5 are in the area of their central formations 13 and 15 and with respect to their rows 43 and 45 one behind the other arranged openings 44 and 46 largely identical.
  • the bands are used to form the flexible lance 1 3, 5 almost phase-shifted flush with one another placed. This is indicated by the auxiliary line 30.
  • the shaped lances come together to form flexible lance 1 Areas 48 between the openings 44 of the first band 3 in to lie in the openings 46 of the second band 5 and protrude into these openings 46 into it.
  • the shaped protrude in the same way Areas 49 in the opposite direction into the openings 44 of the first volume 3. Is in this state through the shaped areas 48 and 49 a straight line Channel for receiving the first tendon 27 is formed.
  • the first tendon 27 in this channel will be the two Bands 3, 5 connected to each other, as the result in Figure 1 is shown.
  • the two tendons 27, 29 are multi-fiber steel cables executed, which is stiffer than the bands 3, 5.
  • the first band has 3 rows 52, 53 more Openings on the engagement of a not explicitly shown Serve feed device.
  • the second band 5 on the outside rows 54, 55 of openings on, which compared to the openings of the rows 52, 53 of first bands 3 in the longitudinal direction 31 a larger extent exhibit. This ensures that, for example a gear of the feed device mentioned only at the openings the rows 52, 53 of the first volume 3 to attack comes what is important when, especially in small radius of curvature, the two bands 3, 5 in the longitudinal direction 31 slightly move relative to each other. A jam lance 1 on the gear wheel is therefore excluded.
  • FIG. 1 A second embodiment of a flexible lance 1 according to the invention is shown in FIG.
  • the first band 3 has a lengthwise direction 31 extending U-shaped cross-section 13 on.
  • the second volume 5 is largely flat.
  • the second band 5 is parallel and flush with the first band 3 so overlapped that the open side of the Forming 13 is completed by the second band 5, so that a guide channel 16 closed on all sides for receiving of supply lines not explicitly shown in this figure is formed.
  • the two bands 3, 5 are in this exemplary embodiment at connection points 60, for example by spot welding, riveting, screwing or the like mechanical fasteners connected together.
  • FIG. 6 shows the use of the flexible lance 1 for processing or inspect a tube sheet 61 of a steam generator 63 shown.
  • the steam generator 63 is in cross section shown pipes 65 shown only in sections.
  • the tubes 65 are bundled on both sides of a tube lane 64 arranged through a hand hole 66 in a Wall 67 of the steam generator 63 is accessible from the outside.
  • Rohrgasse 64 becomes a for editing or inspection only schematically indicated manipulator 69 introduced in Direction 68 is movable back and forth. Via a drive roller 70 of the manipulator 69, the flexible lance 1 in the Spaces between the tubes 65 introduced.
  • inspection head 71 is close to those to be cleaned or locations to be inspected between the tubes 65 approachable.
  • Lance 1 moves in the direction of 72 and is unwound from an external drum, not shown.

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)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
EP01101966A 2000-02-10 2001-01-29 Lance flexible pemettant d'effectuer des opérations ou des contrôles sur la plaque tubulaire d'un générateur de vapeur Expired - Lifetime EP1124092B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10006056 2000-02-10
DE10006056A DE10006056A1 (de) 2000-02-10 2000-02-10 Flexible Lanze zum Bearbeiten oder Inspizieren eines Rohrbodens eines Dampferzeugers

Publications (3)

Publication Number Publication Date
EP1124092A2 true EP1124092A2 (fr) 2001-08-16
EP1124092A3 EP1124092A3 (fr) 2002-09-11
EP1124092B1 EP1124092B1 (fr) 2009-04-29

Family

ID=7630563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01101966A Expired - Lifetime EP1124092B1 (fr) 2000-02-10 2001-01-29 Lance flexible pemettant d'effectuer des opérations ou des contrôles sur la plaque tubulaire d'un générateur de vapeur

Country Status (4)

Country Link
EP (1) EP1124092B1 (fr)
AT (1) ATE430287T1 (fr)
DE (2) DE10006056A1 (fr)
ES (1) ES2324392T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1124093A2 (fr) * 2000-02-10 2001-08-16 Siemens Aktiengesellschaft Lance flexible permettant d'effectuer des opérations ou des contrôles sur la plaque tubulaire d'un générateur de vapeur
CN108351097A (zh) * 2015-10-30 2018-07-31 法马通有限公司 用于处理或检查蒸汽发生器的管底的柔性喷枪

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0084867A1 (fr) 1982-01-25 1983-08-03 Kraftwerk Union Aktiengesellschaft Manipulateur pour passages entre tubes pour éliminer sous haute pression les boues dans les échangeurs de chaleur

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514108B1 (fr) * 1981-10-06 1986-06-13 Framatome Sa Procede et dispositif d'elimination des boues sur la plaque tubulaire des generateurs de vapeur
EP0459597A1 (fr) * 1987-03-18 1991-12-04 Electric Power Research Institute, Inc Lance flexible pour l'élimination des dépôts d'impuretés dans le côté secondaire d'un générateur de vapeur
US5286154A (en) * 1987-03-18 1994-02-15 Electric Power Research Institute, Inc. In bundle foreign object search and retrieval apparatus
ES2141477T3 (es) * 1995-03-15 2000-03-16 Siemens Ag Lanza flexible para realizar trabajos o inspecciones en una plataforma de tubos de un generador de vapor.
WO1998044291A1 (fr) * 1997-03-28 1998-10-08 Electric Power Research Institute, Inc. Support de lance a tension variable
US6412449B1 (en) * 1998-07-29 2002-07-02 The Babcock & Wilcox Company Segmented lance assembly
DE10006066A1 (de) * 2000-02-10 2001-08-30 Siemens Ag Flexible Lanze zum Bearbeiten oder Inspizieren eines Rohrbodens eines Dampferzeugers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0084867A1 (fr) 1982-01-25 1983-08-03 Kraftwerk Union Aktiengesellschaft Manipulateur pour passages entre tubes pour éliminer sous haute pression les boues dans les échangeurs de chaleur

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1124093A2 (fr) * 2000-02-10 2001-08-16 Siemens Aktiengesellschaft Lance flexible permettant d'effectuer des opérations ou des contrôles sur la plaque tubulaire d'un générateur de vapeur
EP1124093A3 (fr) * 2000-02-10 2003-02-19 Framatome ANP GmbH Lance flexible permettant d'effectuer des opérations ou des contrôles sur la plaque tubulaire d'un générateur de vapeur
CN108351097A (zh) * 2015-10-30 2018-07-31 法马通有限公司 用于处理或检查蒸汽发生器的管底的柔性喷枪
CN108351097B (zh) * 2015-10-30 2019-09-24 法马通有限公司 用于处理或检查蒸汽发生器的管底的柔性喷枪
RU2721154C2 (ru) * 2015-10-30 2020-05-18 Фраматом Гмбх Гибкая пика для механической обработки или обследования трубной решетки котла
US11060718B2 (en) * 2015-10-30 2021-07-13 Framatome Gmbh Flexible lance for machining or inspecting a tubesheet of a boiler

Also Published As

Publication number Publication date
DE50114860D1 (de) 2009-06-10
DE10006056A1 (de) 2001-08-30
ATE430287T1 (de) 2009-05-15
ES2324392T3 (es) 2009-08-06
EP1124092B1 (fr) 2009-04-29
EP1124092A3 (fr) 2002-09-11

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