EP1124092B1 - Flexible lance for working on or inspecting a tube plate of a steam generator - Google Patents

Flexible lance for working on or inspecting a tube plate of a steam generator Download PDF

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Publication number
EP1124092B1
EP1124092B1 EP01101966A EP01101966A EP1124092B1 EP 1124092 B1 EP1124092 B1 EP 1124092B1 EP 01101966 A EP01101966 A EP 01101966A EP 01101966 A EP01101966 A EP 01101966A EP 1124092 B1 EP1124092 B1 EP 1124092B1
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EP
European Patent Office
Prior art keywords
strip
flexible lance
flexible
longitudinal direction
tendon
Prior art date
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EP01101966A
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German (de)
French (fr)
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EP1124092A3 (en
EP1124092A2 (en
Inventor
Bruno Dipl.-Ing. Dippel
Konrad Meier-Hynek
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Areva GmbH
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Areva NP GmbH
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Publication of EP1124092A2 publication Critical patent/EP1124092A2/en
Publication of EP1124092A3 publication Critical patent/EP1124092A3/en
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    • 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 plate of a steam generator, comprising a flexible metallic first band having a longitudinally extending first formation for receiving a supply line for a processing or inspection head arranged at the free end of the first band having.
  • the invention is therefore an object of the invention to provide a flexible lance, which is easy to manufacture and in which the supply line is still protected against damage, for example on sharp edges of the deposits formed in the steam generator.
  • the flexible lance has a flexible metallic second band, which is arranged in the longitudinal direction and connected to the first band such that the open side of the first formation of the second Band is a guide channel forming covered.
  • a largely closed guide channel can be formed, in which one or more supply lines can be securely guided against damage along the flexible lance.
  • the first band and the second band are connected to each other by a first tendon.
  • a tendon is understood to mean any flexible, in particular reversible or elastic, flexible connecting element which is extended along the longitudinal direction. With the string the bands are easily connectable without the flexibility of the lance would suffer.
  • the first band and the second band alternately abut the first string for connecting the two bands.
  • the first tendon is threaded through the first band and / or the second band.
  • the first band preferably has a first row of openings arranged one behind the other in the longitudinal direction
  • the second band has a second row of openings arranged longitudinally one behind the other.
  • the first tendon is then preferably guided through the openings of the two bands.
  • the first band is formed between its openings perpendicular to the longitudinal direction, and the second band is formed between its openings in the opposite direction. This makes it possible to guide the first chord for connecting the two bands in manufacturing technology particularly simple manner through the openings.
  • the flexible lance has a second chord spaced from the first Tendon and in the same way as this is appropriate.
  • the two tendons are preferably arranged symmetrically on both sides of the guide channel. With two tendons, the two bands are particularly secure and reliable connected to each other and the guide channel formed is particularly secure to the outside lockable.
  • the first tendon or one of the tendons has a higher bending stiffness than one of the bands or both bands together.
  • the tendon serves in this case not only as a connecting element for the two bands, but also to increase their rigidity. This avoids that the bands, especially at high feed forces, laterally buckle. This is particularly important if the supply line or one of the supply lines is an optical fiber. Such glass fibers are used to illuminate the spot to be cleaned and / or to observe. Glass fibers have the property of breaking below a certain minimum radius of curvature. Due to the increased bending stiffness of the tendon or tendons this is certainly avoided. A lateral buckling of the bands could also lead to the fact that those permanent deformations obtained. This danger is also prevented by the tendons.
  • tendon or tendons By choosing the type of tendon or tendons can be set a balance between flexibility and required stiffness of the flexible lance, largely independent of the thickness of the two bands. An increase in the strip thickness would namely at the same time increase the entire width of the flexible lance, which would adversely affect their usability in the pipe interspaces.
  • the first chord or one of the chords is designed as a wire, in particular as a spring steel wire, as a rope, in particular as a steel cable, and / or as a fiberglass element.
  • a Bowden cable can be used, which can be used in the interior guided tension and pressure cable to drive an optional on processing or inspection head recovery or gripping pliers.
  • the second band of the flexible lance in the region of the guide channel is formed.
  • the second band is formed on the other side like the first band to form the guide channel with a longitudinally extending second configuration.
  • a particularly spacious guide channel is formed.
  • the second formation is disposed over the open side of the first formation such that the formed guide channel extends, viewed in a cross-sectional plane through the bands, substantially symmetrically on both sides of the bands.
  • the first molding and optionally the second molding in the longitudinal direction of successively arranged recesses, in particular slots on.
  • slot width and slot spacing a minimum radius of curvature can be set. At the minimum radius of curvature, in which the frontal edges or surfaces of the slot openings come into contact with each other, is another Bent out of the flexible lance much more difficult, ie largely prevented lateral kinking. This enhances the effect already achieved by the tendon or the tendons.
  • a flexible lance 1 is shown, which is composed of a flexible metallic first band 3 and a flexible metallic second band 5.
  • the two bands 3, 5 are made of stainless steel with a wall thickness between about 0.1 and 0.2 mm.
  • the width b of the bands is about 30 mm.
  • the first band 3 has a first form or formation 13.
  • the second band 5 has a second formation 15 in the opposite direction.
  • the two bands 3, 5 are flush with their flat sides along their longitudinal direction connected to each other.
  • a guide channel 16 is formed by the two formations 13, 15, in the supply lines 17, 19, for example, an optical glass fiber, a capillary or a hose or an electric cable, are guided.
  • the guide channel 16 is closed on both sides by one of the bands 3, 5, so that the supply lines 17, 19 are protected against mechanical damage.
  • the two supply lines 17, 19 are arranged symmetrically on both sides of a central axis 21.
  • the two bands 3, 5 are connected by two tendons 27, 29 with each other.
  • the two tendons 27, 29 are symmetrically mounted on both sides of the central axis 21. Their mutual distance a is about 15 mm.
  • the two bands 3, 5 each alternately wrap around each of the two tendons 27, 29, so that the first band 3 and the second band 5 alternate alternately on each of the two tendons 27, 29.
  • the two bands 3, 5 are connected to each other in a much easier and more flexible manner.
  • FIG. 2 the two bands 3, 5 are shown in a longitudinal view, in a state prior to assembly to the flexible lance first
  • FIG. 2 it can be seen that the formations 13 (see also FIG. 3 ) or 15 (see also FIG. 4 ) are extended in a longitudinal direction 31 of the flexible lance 1.
  • Each of the formations 13, 15 is interrupted by slot-like recesses 33 and 35, by which is avoided that the flexible Lance 1 due to the existing formations 13, 15 is excessively stiff.
  • the distance d of the - in the longitudinal direction 31 - only a few tenths of a millimeter wide and laser-cut slot-like recesses 33, 35 is about 5 mm, the slot width about 7 mm. This results in a minimum radius of curvature of about 40 mm.
  • the bands 3, 5 are connected to each other by means of the tendons 27, 29 not shown in this figure.
  • the first band 3 has a first row 43 in the longitudinal direction equidistant rectangular openings 44 arranged one behind the other.
  • the second band 5 has a second row 45 in the longitudinal direction 31 equidistant rectangular openings 46 arranged one behind the other.
  • 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 formed in the opposite direction.
  • the cross section of the rectangular openings 44, 46 is about 3.5 x 4.5 mm.
  • the two bands 3, 5 are in the region of their central formations 13 and 15 and with respect to their rows 43 and 45 successively arranged openings 44 and 46 substantially identical.
  • the bands 3, 5 are laid out in a quasi 180 ° phase-shifted manner one above the other. This is indicated by means of the auxiliary line 30.
  • the formed regions 48 come to lie between the openings 44 of the first band 3 in the openings 46 of the second band 5 and protrude into these openings 46.
  • the formed portions 49 project in opposite directions into the openings 44 of the first band 3.
  • a rectilinear channel for receiving the first chord 27 is formed by the formed portions 48 and 49.
  • the two tendons 27, 29 are designed as Tantens steel rope, which is stiffer than the bands 3, 5.
  • the first band 3 has rows 52, 53 of further openings which serve to engage a feed device which is not explicitly shown.
  • the second band 5 has outboard rows 54, 55 of apertures having a greater extent as compared to the apertures of the rows 52, 53 of the first band 3 in the longitudinal direction 31. This ensures that, for example, a toothed wheel of said feed device comes into contact only at the openings of the rows 52, 53 of the first band 3, which is important if, especially with a small radius of curvature, the two bands 3, 5 in the longitudinal direction 31 slightly relative to each other. Jamming the lance 1 on the gear is thus excluded.
  • FIG. 5 A second embodiment of a flexible lance 1 according to the invention is shown in FIG FIG. 5 shown.
  • the second band 5 is largely flat.
  • the second band 5 is brought into coincidence parallel and flush with the first band 3 such that the open side of the formation 13 is closed by the second band 5, so that a guide channel 16 closed on all sides for receiving supply lines not explicitly shown in this figure is formed.
  • the two bands 3, 5 are in this embodiment, connected to joints 60, for example, by spot welding, rivets, screws or similar mechanical fasteners.
  • FIG. 6 the use of the flexible lance 1 for processing or inspecting a tube plate 61 of a steam generator 63 is shown.
  • the steam generator 63 is shown only partially with tubes shown in cross section 65.
  • the tubes 65 are arranged in bundles on both sides of a pipe lane 64, which is accessible from the outside through a hand hole 66 in a wall 67 of the steam generator 63.
  • a manipulator 69 which is indicated only schematically, is introduced into the pipe lane 64 and is movable in the direction 68 back and forth. Via a drive roller 70 of the manipulator 69, the flexible lance 1 is inserted into the spaces between the tubes 65.
  • a processing or inspection head 71 attached to the end of the flexible lance can thus be brought close to the points to be cleaned or inspected between the tubes 65.
  • the lance 1 moves in the direction 72 and is unwound from an external drum, not shown.

Abstract

The flexible lance has a pair of flexible metallic bands (3,5), sandwiched together for providing a guide sleeve (16) extending in the longitudinal direction, for locating at least one supply line (17,18) leading to a treatment or inspection head at the free end of the band. The 2 metallic bands may be joined together via a thread which is passed through aligned openings in both bands to sew them together.

Description

Die Erfindung bezieht sich auf eine flexible Lanze zum Bearbeiten oder Inspizieren eines Rohrbodens eines Dampferzeugers, mit einem flexiblen metallischen ersten Band, das eine sich in seiner Längsrichtung erstreckende erste Ausformung zur Aufnahme einer Versorgungsleitung für einen am freien Ende des ersten Bands angeordneten Bearbeitungs- oder Inspektionskopf aufweist.The invention relates to a flexible lance for processing or inspecting a tube plate of a steam generator, comprising a flexible metallic first band having a longitudinally extending first formation for receiving a supply line for a processing or inspection head arranged at the free end of the first band having.

In den Rohrböden von Dampferzeugern, insbesondere von nuklearen Dampferzeugern, verbleiben nach einer gewissen Betriebszeit festhaftende Verunreinigungen. Diese Verunreinigungen können an manchen Stellen eine Höhe von einigen Zentimetern aufweisen. Da die Verunreinigungen sehr hart sind, besteht die Gefahr einer Beschädigung der in engem Abstand angeordneten Dampferzeugerrohre (Denting).In the tubesheets of steam generators, in particular of nuclear steam generators remain after a certain period of time stuck impurities. These impurities can in some places have a height of a few centimeters. Since the impurities are very hard, there is a risk of damaging the closely spaced steam generator pipes (denting).

Bei Rohrböden von Dampferzeugern muss aus diesem Grund auf der Sekundärseite regelmäßig untersucht werden, ob und in welchem Ausmaß sich zwischen den Heizrohren Ablagerungen gebildet haben. Diese Ablagerungen müssen dann gegebenenfalls entfernt werden, um Schäden an den Heizrohren zu vermeiden.For tube sheets of steam generators, it is therefore necessary to regularly check on the secondary side whether and to what extent deposits have formed between the heating tubes. If necessary, these deposits must be removed to prevent damage to the heating pipes.

Dies geschieht für die festhaftenden Ablagerungen in erster Linie durch Spritzverfahren. Beispielsweise ist aus der Europäischen Patentschrift EP 0 084 867 ein Spritzverfahren bekannt, bei dem ein Hochdruck-Wasserstrahl von einem in der Rohrgasse befindlichen Spritzkopf aus in die Zwischenräume zwischen den Heizrohren gespritzt wird.This happens for the adherent deposits primarily by spraying. For example, is from the European Patent EP 0 084 867 a spraying method is known in which a high-pressure water jet is injected from a spray head located in the pipe outlet in the spaces between the heating tubes.

Es hat sich jedoch gezeigt, dass damit festhaftende Ablagerungen im Innenbereich der Rohrbündel nicht vollständig entfernt werden können. Um eine effiziente Reinigung des Rohrbodens zu gewährleisten, ist es deshalb erforderlich, einen Spritzkopf unmittelbar in die Zwischenräume zwischen die Heizrohre zu führen und einen Hochdruck-Flüssigkeitsstrahl unmittelbar auf die Ablagerungen im Inneren der Heizrohrbündel zu richten.However, it has been shown that firmly adhering deposits in the interior of the tube bundle can not be completely removed. For efficient cleaning of the tube bottom To ensure, it is therefore necessary to lead a spray head directly into the spaces between the heating tubes and direct a high-pressure liquid jet directly to the deposits inside the heating tube bundle.

Zur Führung einer Versorgungsleitung für einen Inspektionskopf und/oder zur Führung einer Flüssigkeitsversorgungsleitung für das genannte Spritzverfahren ist aus EP 0 815 388 B1 eine flexible Lanze bekannt. Diese weist ein flexibles metallisches Band auf, das in seiner Längsrichtung hintereinander angeordnete Ausnehmungen hat, durch die eine flexible Versorgungsleitung für einen am freien Ende des Bands angeordneten Bearbeitungs- oder Inspektionskopf gefädelt ist. Dieses Band hat den Nachteil, dass die Versorgungsleitung nicht ausreichend vor Beschädigung durch scharfe Kanten etc. geschützt ist.To guide a supply line for an inspection head and / or to guide a liquid supply line for said spraying is off EP 0 815 388 B1 a flexible lance known. This has a flexible metallic band, which has in its longitudinal direction successively arranged recesses through which a flexible supply line is threaded for a arranged at the free end of the tape processing or inspection head. This tape has the disadvantage that the supply line is not sufficiently protected against damage by sharp edges, etc.

Der Erfindung liegt demzufolge die Aufgabe zugrunde, eine flexible Lanze anzugeben, die einfach herzustellen ist und bei der die Versorgungsleitung dennoch vor einer Beschädigung, beispielsweise an scharfen Kanten der im Dampferzeuger gebildeten Ablagerungen, geschützt ist.The invention is therefore an object of the invention to provide a flexible lance, which is easy to manufacture and in which the supply line is still protected against damage, for example on sharp edges of the deposits formed in the steam generator.

Diese Aufgabe wird bezogen auf die eingangs genannte flexible Lanze gemäß der Erfindung dadurch gelöst, dass die flexible Lanze ein flexibles metallisches zweites Band aufweist, welches in Längsrichtung angeordnet und mit dem ersten Band derart verbunden ist, dass die offene Seite der ersten Ausformung von dem zweiten Band einen Führungskanal bildend überdeckt ist.This object is achieved with respect to the above-mentioned flexible lance according to the invention in that the flexible lance has a flexible metallic second band, which is arranged in the longitudinal direction and connected to the first band such that the open side of the first formation of the second Band is a guide channel forming covered.

Durch die erste Ausformung einerseits und das zweite Band andererseits kann ein weitgehend geschlossener Führungskanal gebildet werden, in dem eine oder mehrere Versorgungsleitungen sicher vor Beschädigungen entlang der flexiblen Lanze geführt werden können.By the first shaping on the one hand and the second band on the other hand, a largely closed guide channel can be formed, in which one or more supply lines can be securely guided against damage along the flexible lance.

Nach einer bevorzugten Ausgestaltung sind das erste Band und das zweite Band durch eine erste Sehne miteinander verbunden. Unter einer Sehne wird in diesem Zusammenhang jedes, insbesondere reversibel oder elastisch, biegsame entlang der Längsrichtung ausgedehnte Verbindungselement verstanden. Mit der Sehne sind die Bänder in einfacher Weise miteinander verbindbar, ohne dass die Flexibilität der Lanze darunter leiden würde.According to a preferred embodiment, the first band and the second band are connected to each other by a first tendon. In this context, a tendon is understood to mean any flexible, in particular reversible or elastic, flexible connecting element which is extended along the longitudinal direction. With the string the bands are easily connectable without the flexibility of the lance would suffer.

Vorzugsweise liegt zur Verbindung der beiden Bänder abwechselnd das erste Band und das zweite Band an der ersten Sehne an. Die erste Sehne ist also durch das erste Band und/oder das zweite Band hindurch gefädelt.Preferably, the first band and the second band alternately abut the first string for connecting the two bands. The first tendon is threaded through the first band and / or the second band.

Hierzu weist das erst Band vorzugsweise eine erste Reihe in Längsrichtung hintereinander angeordneter Öffnungen auf und das zweite Band eine zweite Reihe in Längsrichtung hintereinander angeordneter Öffnungen. Zur Verbindung der Bänder ist die erste Sehne dann bevorzugt durch die Öffnungen der beiden Bänder geführt.For this purpose, the first band preferably has a first row of openings arranged one behind the other in the longitudinal direction, and the second band has a second row of openings arranged longitudinally one behind the other. To connect the bands, the first tendon is then preferably guided through the openings of the two bands.

Nach einer besonders bevorzugten Ausgestaltung ist das erste Band zwischen seinen Öffnungen senkrecht zur Längsrichtung ausgeformt, und das zweite Band ist zwischen seinen Öffnungen in entgegengesetzter Richtung ausgeformt. Dadurch ist es möglich, die erste Sehne zur Verbindung der beiden Bänder in fertigungstechnisch besonders einfacher Weise durch die Öffnungen zu führen.According to a particularly preferred embodiment, the first band is formed between its openings perpendicular to the longitudinal direction, and the second band is formed between its openings in the opposite direction. This makes it possible to guide the first chord for connecting the two bands in manufacturing technology particularly simple manner through the openings.

In besonders einfacher Weise ist dies möglich, falls wenigstens eines der Bänder mit seinen ausgeformten Bereichen in die Öffnungen des anderen Bands hineinragt. Die beiden Bänder sind in diesem Fall also in seitlicher Richtung ineinander gesteckt.In a particularly simple manner, this is possible if at least one of the bands protrudes with its shaped areas in the openings of the other band. The two bands are thus inserted in this case in the lateral direction.

Nach einer anderen bevorzugten Ausgestaltung weist die flexible Lanze eine zweite Sehne auf, die beabstandet zur ersten Sehne und in gleicher Weise wie diese angebracht ist. Die beiden Sehnen sind vorzugsweise symmetrisch beidseitig des Führungskanals angeordnet. Mit zwei Sehnen sind die beiden Bänder besonders sicher und zuverlässig miteinander verbindbar und der gebildete Führungskanal ist besonders sicher nach außen hin abschließbar.In another preferred embodiment, the flexible lance has a second chord spaced from the first Tendon and in the same way as this is appropriate. The two tendons are preferably arranged symmetrically on both sides of the guide channel. With two tendons, the two bands are particularly secure and reliable connected to each other and the guide channel formed is particularly secure to the outside lockable.

In einer besonders bevorzugten Weiterbildung weist die erste Sehne bzw. eine der Sehnen eine höhere Biegesteifigkeit als eines der Bänder oder als beide Bänder zusammen auf. Die Sehne dient in diesem Fall also nicht nur als Verbindungselement für die beiden Bänder, sondern auch der Erhöhung deren Steifigkeit. Dadurch wird vermieden, dass die Bänder, insbesondere bei hohen Vorschubkräften, seitlich ausknicken. Dies ist insbesondere von Bedeutung, falls die Versorgungsleitung oder eine der Versorgungsleitungen eine optische Glasfaser ist. Derartige Glasfasern kommen zum Einsatz, um die zu reinigende Stelle zu beleuchten und/oder zu beobachten. Glasfasern haben die Eigenschaft, bei Unterschreiten eines gewissen minimalen Krümmungsradius' zu zerbrechen. Aufgrund der erhöhten Biegesteifigkeit der Sehne bzw. der Sehnen ist dies sicher vermieden. Ein seitliches Ausknicken der Bänder könnte außerdem dazu führen, dass jene bleibende Verformungen erhalten. Auch diese Gefahr wird durch die Sehnen unterbunden.In a particularly preferred development, the first tendon or one of the tendons has a higher bending stiffness than one of the bands or both bands together. The tendon serves in this case not only as a connecting element for the two bands, but also to increase their rigidity. This avoids that the bands, especially at high feed forces, laterally buckle. This is particularly important if the supply line or one of the supply lines is an optical fiber. Such glass fibers are used to illuminate the spot to be cleaned and / or to observe. Glass fibers have the property of breaking below a certain minimum radius of curvature. Due to the increased bending stiffness of the tendon or tendons this is certainly avoided. A lateral buckling of the bands could also lead to the fact that those permanent deformations obtained. This danger is also prevented by the tendons.

Durch die Wahl der Art der Sehne bzw. der Sehnen kann ein ausgewogenes Verhältnis zwischen Flexibilität und erforderlicher Steifigkeit der flexiblen Lanze eingestellt werden, und zwar weitgehend unabhängig von der Dicke der beiden Bänder. Eine Erhöhung der Bänderdicke würde nämlich gleichzeitig die gesamte Breite der flexiblen Lanze erhöhen, was sich nachteilig auf deren Verwendbarkeit in den Rohrzwischenräumen auswirken würde.By choosing the type of tendon or tendons can be set a balance between flexibility and required stiffness of the flexible lance, largely independent of the thickness of the two bands. An increase in the strip thickness would namely at the same time increase the entire width of the flexible lance, which would adversely affect their usability in the pipe interspaces.

Beispielsweise ist die erste Sehne bzw. eine der Sehnen als Draht, insbesondere als Federstahldraht, als Seil, insbesondere als Stahlseil, und/oder als Fiberglaselement ausgebildet. Als Sehne kann auch ein Bowdenzug verwendet werden, dessen im Inneren geführtes Zug- und Druckkabel zum Antrieb einer am Bearbeitungs- oder Inspektionskopf optional vorhandenen Berge- oder Greifzange dienen kann.For example, the first chord or one of the chords is designed as a wire, in particular as a spring steel wire, as a rope, in particular as a steel cable, and / or as a fiberglass element. As a chord, a Bowden cable can be used, which can be used in the interior guided tension and pressure cable to drive an optional on processing or inspection head recovery or gripping pliers.

Nach einer ganz besonders bevorzugten Ausgestaltung ist auch das zweite Band der flexiblen Lanze im Bereich des Führungskanals ausgeformt. Mit anderen Worten: Das zweite Band ist zur Bildung des Führungskanals mit einer sich in Längsrichtung erstreckenden zweiten Ausformung auf die andere Seite wie das erste Band ausgeformt. Dadurch ist ein besonders geräumiger Führungskanal gebildet.According to a very particularly preferred embodiment, the second band of the flexible lance in the region of the guide channel is formed. In other words, the second band is formed on the other side like the first band to form the guide channel with a longitudinally extending second configuration. As a result, a particularly spacious guide channel is formed.

Bevorzugt ist die zweite Ausformung derart über der offenen Seite der ersten Ausformung angeordnet, dass sich der gebildete Führungskanal - betrachtet in einer Querschnittsebene durch die Bänder - im wesentlichen symmetrisch auf beide Seiten der Bänder erstreckt.Preferably, the second formation is disposed over the open side of the first formation such that the formed guide channel extends, viewed in a cross-sectional plane through the bands, substantially symmetrically on both sides of the bands.

Dadurch ist es in vorteilhafter Weise möglich, die Versorgungsleitung derart in der flexiblen Lanze zu führen, dass sie, vorzugsweise mittig, auf einer Linie zu liegen kommt, auf der die flexible Lanze eine neutrale Faser hat oder hätte. Dadurch ist sichergestellt, dass die Versorgungsleitung bei einem seitlichen Biegen der flexiblen Lanze besonders wenig beansprucht wird.Thereby, it is advantageously possible to guide the supply line in the flexible lance so that it comes to rest, preferably in the middle, on a line on which the flexible lance has or would have a neutral fiber. This ensures that the supply line is particularly little stressed in a lateral bending of the flexible lance.

Vorzugsweise weist die erste Ausformung und optional die zweite Ausformung in Längsrichtung hintereinander angeordnete Ausnehmungen, insbesondere Schlitze, auf. Dadurch ist sichergestellt, dass das erste Band bzw. optional das zweite Band infolge seiner jeweiligen Ausformung oder Ausprägung nicht für einige Anwendungen unzulässig steif würde. Durch die Wahl von Schlitzbreite und Schlitzabstand kann ein minimaler Krümmungsradius eingestellt werden. Beim minimalen Krümmungsradius, bei dem die stirnseitigen Kanten oder Flächen der Schlitzöffnungen gegenseitig zur Anlage kommen, ist ein weiteres Ausbiegen der flexiblen Lanze deutlich erschwert, d.h. ein seitlichen Abknicken weitgehend unterbunden. Dadurch wird die bereits von der Sehne oder den Sehnen erzielte Wirkung verstärkt.Preferably, the first molding and optionally the second molding in the longitudinal direction of successively arranged recesses, in particular slots on. This ensures that the first band or optionally the second band would not be impermissibly stiff for some applications due to its particular shape or shape. By choosing slot width and slot spacing, a minimum radius of curvature can be set. At the minimum radius of curvature, in which the frontal edges or surfaces of the slot openings come into contact with each other, is another Bent out of the flexible lance much more difficult, ie largely prevented lateral kinking. This enhances the effect already achieved by the tendon or the tendons.

Zwei Ausführungsbeispiele einer flexiblen Lanze nach der Erfindung werden nachfolgend anhand der Figuren 1 bis 6 näher erläutert. Es zeigen:

FIG 1
ein erstes Ausführungsbeispiel einer flexiblen Lanze nach der Erfindung in einer Querschnittsdarstellung,
FIG 2
zwei Bänder der flexiblen Lanze der Figur 1 vor ihrem Verbinden in einer Längsansicht,
FIG 3
eine Querschnittsdarstellung des ersten Bands der flexiblen Lanze der Figur 1,
FIG 4
eine Querschnittsdarstellung des zweiten Bands der flexiblen Lanze der Figur 1,
FIG 5
ein zweites Ausführungsbeispiel der flexiblen Lanze nach der Erfindung in perspektivischer Darstellung und
FIG 6
eine schematische Darstellung des Einsatzes der flexiblen Lanze beim Bearbeiten oder Inspizieren eines Rohrbodens eines Dampferzeugers.
Two embodiments of a flexible lance according to the invention are described below with reference to the FIGS. 1 to 6 explained in more detail. Show it:
FIG. 1
A first embodiment of a flexible lance according to the invention in a cross-sectional view,
FIG. 2
two bands of flexible lance the FIG. 1 before joining in a longitudinal view,
FIG. 3
a cross-sectional view of the first band of the flexible lance of FIG. 1 .
FIG. 4
a cross-sectional view of the second band of the flexible lance of FIG. 1 .
FIG. 5
A second embodiment of the flexible lance according to the invention in a perspective view and
FIG. 6
a schematic representation of the use of the flexible lance when working or inspecting a tube plate of a steam generator.

In Figur 1 ist eine flexible Lanze 1 dargestellt, die aus einem flexiblen metallischen ersten Band 3 und einem flexibeln metallischen zweiten Band 5 zusammengesetzt ist. Die beiden Bänder 3, 5 bestehen aus Chromnickelstahl mit einer Wandstärke zwischen etwa 0,1 und 0,2 mm. Die Breite b der Bänder beträgt etwa 30 mm. In seiner Mitte weist das erste Band 3 eine erste Ausprägung oder Ausformung 13 auf. Gegenüberliegend weist das zweite Band 5 in entgegengesetzter Richtung eine zweite Ausformung 15 auf. Die beiden Bänder 3, 5 sind mit ihrem Flachseiten entlang ihrer Längsrichtung bündig aneinander anliegend verbunden. Dabei ist durch die beiden Ausformungen 13, 15 ein Führungskanal 16 gebildet, in dem Versorgungsleitungen 17, 19, beispielsweise eine optische Glasfaser, eine Kapillare oder ein Schlauch oder ein elektrisches Kabel, geführt sind. Der Führungskanal 16 ist nach beiden Seiten hin von jeweils einem der Bänder 3, 5 abgeschlossen, so dass die Versorgungsleitungen 17, 19 vor mechanischer Beschädigung geschützt sind.In FIG. 1 a flexible lance 1 is shown, which is composed of a flexible metallic first band 3 and a flexible metallic second band 5. The two bands 3, 5 are made of stainless steel with a wall thickness between about 0.1 and 0.2 mm. The width b of the bands is about 30 mm. In its center, the first band 3 has a first form or formation 13. Opposite the second band 5 has a second formation 15 in the opposite direction. The two bands 3, 5 are flush with their flat sides along their longitudinal direction connected to each other. In this case, a guide channel 16 is formed by the two formations 13, 15, in the supply lines 17, 19, for example, an optical glass fiber, a capillary or a hose or an electric cable, are guided. The guide channel 16 is closed on both sides by one of the bands 3, 5, so that the supply lines 17, 19 are protected against mechanical damage.

Die beiden Versorgungsleitungen 17, 19 sind symmetrisch beidseitig einer Mittenachse 21 angeordnet.The two supply lines 17, 19 are arranged symmetrically on both sides of a central axis 21.

Die beiden Bänder 3, 5 sind durch zwei Sehnen 27, 29 miteinander verbunden. Die beiden Sehnen 27, 29 sind symmetrisch beidseitig der Mittenachse 21 angebracht. Ihr gegenseitiger Abstand a beträgt etwa 15 mm.The two bands 3, 5 are connected by two tendons 27, 29 with each other. The two tendons 27, 29 are symmetrically mounted on both sides of the central axis 21. Their mutual distance a is about 15 mm.

Die beiden Bänder 3, 5 schlingen sich jeweils abwechselnd um jede der beiden Sehnen 27, 29, so dass an jeder der beiden Sehnen 27, 29 abwechselnd das erste Band 3 und das zweite Band 5 anliegt. Dadurch sind die beiden Bänder 3, 5 in gleichsam einfacher und flexibler Weise miteinander verbunden.The two bands 3, 5 each alternately wrap around each of the two tendons 27, 29, so that the first band 3 and the second band 5 alternate alternately on each of the two tendons 27, 29. As a result, the two bands 3, 5 are connected to each other in a much easier and more flexible manner.

In Figur 2 sind die beiden Bänder 3, 5 in einer Längssicht dargestellt, und zwar in einem Zustand vor dem Zusammenfügen zur flexiblen Lanze 1.In FIG. 2 the two bands 3, 5 are shown in a longitudinal view, in a state prior to assembly to the flexible lance first

Aus Figur 2 wird ersichtlich, dass die Ausformungen 13 (siehe auch Figur 3) bzw. 15 (siehe auch Figur 4) in einer Längsrichtung 31 der flexiblen Lanze 1 ausgedehnt sind. Jede der Ausformungen 13, 15 ist von schlitzartigen Ausnehmungen 33 bzw. 35 unterbrochen, durch die vermieden ist, dass die flexible Lanze 1 infolge der vorhandenen Ausformungen 13, 15 übermäßig steif ist.Out FIG. 2 it can be seen that the formations 13 (see also FIG. 3 ) or 15 (see also FIG. 4 ) are extended in a longitudinal direction 31 of the flexible lance 1. Each of the formations 13, 15 is interrupted by slot-like recesses 33 and 35, by which is avoided that the flexible Lance 1 due to the existing formations 13, 15 is excessively stiff.

Der Abstand d der - in Längsrichtung 31 - nur wenige Zehntel Millimeter breiten und lasergeschnittenen schlitzartigen Ausnehmungen 33, 35 beträgt etwa 5 mm, die Schlitzbreite etwa 7 mm. Dadurch ergibt sich ein minimaler Krümmungsradius von ca. 40 mm.The distance d of the - in the longitudinal direction 31 - only a few tenths of a millimeter wide and laser-cut slot-like recesses 33, 35 is about 5 mm, the slot width about 7 mm. This results in a minimum radius of curvature of about 40 mm.

In Figur 2 ist außerdem ersichtlich, wie die Bänder 3, 5 mittels den in dieser Figur nicht dargestellten Sehnen 27, 29 miteinander verbunden sind. Hierzu weist das erste Band 3 eine erste Reihe 43 in Längsrichtung äquidistant hintereinander angeordneter rechteckiger Öffnungen 44 auf. In analoger Weise weist das zweite Band 5 eine zweite Reihe 45 in Längsrichtung 31 äquidistant hintereinander angeordneter rechteckiger Öffnungen 46 auf. Die Bereiche 48 (siehe auch Figur 3) bzw. 49 (siehe auch Figur 4) zwischen den Öffnungen 44 bzw. 46 des ersten Bands 3 bzw. des zweiten Bands 5 sind in entgegengesetzter Richtung ausgeformt. Der Querschnitt der rechteckigen Öffnungen 44, 46 beträgt etwa 3,5 x 4,5 mm.In FIG. 2 It can also be seen how the bands 3, 5 are connected to each other by means of the tendons 27, 29 not shown in this figure. For this purpose, the first band 3 has a first row 43 in the longitudinal direction equidistant rectangular openings 44 arranged one behind the other. In an analogous manner, the second band 5 has a second row 45 in the longitudinal direction 31 equidistant rectangular openings 46 arranged one behind the other. 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 formed in the opposite direction. The cross section of the rectangular openings 44, 46 is about 3.5 x 4.5 mm.

Die beiden Bänder 3, 5 sind im Bereich ihrer mittigen Ausformungen 13 bzw. 15 und bezüglich ihrer Reihen 43 bzw. 45 hintereinander angeordneter Öffnungen 44 bzw. 46 weitgehend identisch. Zur Bildung der flexiblen Lanze 1 werden die Bänder 3, 5 quasi um 180° phasenverschoben bündig übereinander gelegt. Dies ist mittels der Hilfslinie 30 angedeutet. Beim Zusammenfügen zur flexiblen Lanze 1 kommen die ausgeformten Bereiche 48 zwischen den Öffnungen 44 des ersten Bands 3 in den Öffnungen 46 des zweiten Bands 5 zu liegen und ragen in diese Öffnungen 46 hinein. In gleicher Weise ragen die ausgeformten Bereiche 49 in entgegengesetzter Richtung in die Öffnungen 44 des ersten Bands 3 hinein. In diesem Zustand ist durch die ausgeformten Bereiche 48 und 49 ein geradliniger Kanal zur Aufnahme der ersten Sehne 27 gebildet. Durch Einführen der ersten Sehne 27 in diesen Kanal werden die beiden Bänder 3, 5 miteinander verbunden, wie dies im Ergebnis in Figur 1 dargestellt ist.The two bands 3, 5 are in the region of their central formations 13 and 15 and with respect to their rows 43 and 45 successively arranged openings 44 and 46 substantially identical. To form the flexible lance 1, the bands 3, 5 are laid out in a quasi 180 ° phase-shifted manner one above the other. This is indicated by means of the auxiliary line 30. When assembled to the flexible lance 1, the formed regions 48 come to lie between the openings 44 of the first band 3 in the openings 46 of the second band 5 and protrude into these openings 46. Likewise, the formed portions 49 project in opposite directions into the openings 44 of the first band 3. In this state, a rectilinear channel for receiving the first chord 27 is formed by the formed portions 48 and 49. By inserting the first tendon 27 in this channel, the two Bands 3, 5 interconnected as shown in the result FIG. 1 is shown.

Weitere Reihen äquidistanter Öffnungen mit ausgeformten Bereichen 50 des Bands 3 (siehe auch Figur 3) bzw. ausgeformten Bereichen 51 des zweiten Bands 5 (siehe auch Figur 4) dienen in analoger Weise der Aufnahme der zweiten Sehne 29 (siehe Figur 1).Further rows of equidistant openings with shaped areas 50 of the band 3 (see also FIG FIG. 3 ) or formed regions 51 of the second band 5 (see also FIG FIG. 4 ) serve in an analogous way the recording of the second tendon 29 (see FIG. 1 ).

Die beiden Sehnen 27, 29 sind als mehrfaseriges Stahlseil ausgeführt, das steifer als die Bänder 3, 5 ist.The two tendons 27, 29 are designed as mehrfaseriges steel rope, which is stiffer than the bands 3, 5.

Außenliegend weist das erste Band 3 Reihen 52, 53 weiterer Öffnungen auf, die dem Eingriff einer nicht explizit dargestellten Vorschubeinrichtung dienen. In gleicher Weise weist das zweite Band 5 außenliegend Reihen 54, 55 von Öffnungen auf, die im Vergleich zu den Öffnungen der Reihen 52, 53 des ersten Bands 3 in Längsrichtung 31 eine größere Ausdehnung aufweisen. Dadurch ist sichergestellt, dass beispielsweise ein Zahnrad der genannten Vorschubeinrichtung nur an den Öffnungen der Reihen 52, 53 des ersten Bands 3 zum Angriff kommt, was von Bedeutung ist, wenn sich, insbesondere bei kleinem Krümmungsradius, die beiden Bänder 3, 5 in Längsrichtung 31 leicht relativ zueinander verschieben. Ein Verklemmen der Lanze 1 am Zahnrad ist somit ausgeschlossen.On the outside, the first band 3 has rows 52, 53 of further openings which serve to engage a feed device which is not explicitly shown. Likewise, the second band 5 has outboard rows 54, 55 of apertures having a greater extent as compared to the apertures of the rows 52, 53 of the first band 3 in the longitudinal direction 31. This ensures that, for example, a toothed wheel of said feed device comes into contact only at the openings of the rows 52, 53 of the first band 3, which is important if, especially with a small radius of curvature, the two bands 3, 5 in the longitudinal direction 31 slightly relative to each other. Jamming the lance 1 on the gear is thus excluded.

Ein zweites Ausführungsbeispiel einer flexiblen Lanze 1 nach der Erfindung ist in Figur 5 dargestellt. Bei diesem Ausführungsbeispiel weist nur das erste Band 3 eine sich in Längsrichtung 31 erstreckende im Querschnitt U-förmige Ausformung 13 auf. Das zweite Band 5 ist weitgehend plan. Das zweite Band 5 ist parallel und bündig mit dem ersten Band 3 derart in Überdeckung gebracht, dass die offene Seite der Ausformung 13 von dem zweiten Band 5 abgeschlossen ist, so dass ein allseitig geschlossener Führungskanal 16 zur Aufnahme von in dieser Figur nicht explizit dargestellten Versorgungsleitungen gebildet ist. Die beiden Bänder 3, 5 sind in diesem Ausführungsbeispiel an Verbindungsstellen 60 beispielsweise durch Punktschweißen, Nieten, Schrauben oder ähnliche mechanische Verbindungselemente miteinander verbunden.A second embodiment of a flexible lance 1 according to the invention is shown in FIG FIG. 5 shown. In this embodiment, only the first band 3 has a longitudinally extending in the longitudinal direction 31 in cross-section U-shaped formation 13. The second band 5 is largely flat. The second band 5 is brought into coincidence parallel and flush with the first band 3 such that the open side of the formation 13 is closed by the second band 5, so that a guide channel 16 closed on all sides for receiving supply lines not explicitly shown in this figure is formed. The two bands 3, 5 are in this embodiment, connected to joints 60, for example, by spot welding, rivets, screws or similar mechanical fasteners.

In Figur 6 ist die Verwendung der flexiblen Lanze 1 zum Bearbeiten oder Inspizieren eines Rohrbodens 61 eines Dampferzeugers 63 dargestellt. Der Dampferzeuger 63 ist mit im Querschnitt dargestellten Rohren 65 nur ausschnittsweise abgebildet. Die Rohre 65 sind bündelweise beiderseitig einer Rohrgasse 64 angeordnet, die durch ein Handloch 66 in einer Wand 67 des Dampferzeugers 63 von außen zugänglich ist. In die Rohrgasse 64 wird zum Bearbeiten oder Inspizieren ein nur schematisch angedeuteter Manipulator 69 eingeführt, der in Richtung 68 hin und her bewegbar ist. Über eine Antriebsrolle 70 des Manipulators 69 wird die flexible Lanze 1 in die Zwischenräume zwischen den Rohren 65 eingeführt. Ein endseitig an der flexiblen Lanze angebrachter Bearbeitungs- oder Inspektionskopf 71 ist auf diese Weise nahe an die zu reinigenden oder zu inspizierenden Stellen zwischen den Rohren 65 heranführbar. Die Lanze 1 bewegt sich dabei in Richtung 72 und wird von einer externen nicht dargestellten Trommel abgespult.In FIG. 6 the use of the flexible lance 1 for processing or inspecting a tube plate 61 of a steam generator 63 is shown. The steam generator 63 is shown only partially with tubes shown in cross section 65. The tubes 65 are arranged in bundles on both sides of a pipe lane 64, which is accessible from the outside through a hand hole 66 in a wall 67 of the steam generator 63. For manipulation or inspection, a manipulator 69, which is indicated only schematically, is introduced into the pipe lane 64 and is movable in the direction 68 back and forth. Via a drive roller 70 of the manipulator 69, the flexible lance 1 is inserted into the spaces between the tubes 65. A processing or inspection head 71 attached to the end of the flexible lance can thus be brought close to the points to be cleaned or inspected between the tubes 65. The lance 1 moves in the direction 72 and is unwound from an external drum, not shown.

Weitere Einzelheiten des Manipulators 69 sowie Details zum angesprochenen Verwendungszweck sind in den Spalten 4 bis 7 der EP 0 815 388 B1 beschrieben.Further details of the manipulator 69 and details of the intended use are in columns 4 to 7 of EP 0 815 388 B1 described.

Claims (12)

  1. Flexible lance (1) for working on or inspecting a tube plate (61) of a steam generator (63), having a flexible metallic first strip (3), which has a first formation (13), extending in the longitudinal direction (31) of the strip, for holding a supply line (17, 19) for a working or inspection head (71) which is arranged at the free end of the first strip (3),
    characterized by a flexible metallic second strip (5), which is arranged in the longitudinal direction (31) and is connected to the first strip (3) such that the open face of the first formation (13) is covered by the second strip (5) so as to form a guiding passage (16).
  2. Flexible lance (1) according to Claim 1,
    characterized in that the first strip (3) and the second strip (5) are connected to each other by a first tendon (27).
  3. Flexible lance (1) according to Claim 2,
    characterized in that in order to connect the two strips (3, 5), the first strip (3) and the second strip (5) come to bear on the first tendon (27) in an alternating fashion.
  4. Flexible lance (1) according to Claim 2 or 3,
    characterized
    - in that the first strip (3) has a first row (43) of openings (44) which are arranged successively in the longitudinal direction (31),
    - in that the second strip (5) has a second row (45) of openings (46) which are arranged successively in the longitudinal direction (31), and
    - in that in order to connect the strips (3, 5), the first tendon (27) is guided through the openings (44, 46) of the two strips (3, 5).
  5. Flexible lance (1) according to Claim 4,
    characterized in that the first strip (3) between its openings (44) has formations perpendicular with respect to the longitudinal direction (31),
    in that the second strip (5) between its openings (46) has formations in the opposite direction.
  6. Flexible lance (1) according to Claim 5,
    characterized in that at least one of the strips (3, 5) with its formed regions (48 and 49) projects into the openings (46, 44) of the other strip (5, 3).
  7. Flexible lance (1) according to one of Claims 2 to 6,
    characterized in that a second tendon (29) is attached in the same manner as the first tendon (27) and at a distance therefrom.
  8. Flexible lance (1) according to one of Claims 2 to 7,
    characterized in that the first tendon (27) or one of the tendons (27, 29) is in the form of a wire, in particular in the form of a spring steel wire, in the form of a cable, in particular a steel cable, and/or in the form of a fibreglass element.
  9. Flexible lance (1) according to one of Claims 2 to 8,
    characterized in that the first tendon (27) or one of the tendons (27, 29) has a higher flexural stiffness than one of the strips (3, 5) or than both strips (3, 5) together.
  10. Flexible lance (1) according to one of Claims 1 to 9,
    characterized in that the second strip (5) has a second formation (15) extending in the longitudinal direction (31) on the other side than the first strip (3) in order to form the guiding passage (16).
  11. Flexible lance (1) according to Claim 10,
    characterized in that the second formation (15) is arranged above the open side of the first formation (13) such that the guiding passage (16) which is formed - as seen in a cross-sectional plane through the strips (3, 5) - extends substantially symmetrically on both sides of the strips (3, 5).
  12. Flexible lance (1) according to one of Claims 1 to 11,
    characterized in that the first formation (13) and optionally the second formation (15) have, in the longitudinal direction (31), cutouts (33 and 35), in particular slots, arranged successively.
EP01101966A 2000-02-10 2001-01-29 Flexible lance for working on or inspecting a tube plate of a steam generator Expired - Lifetime EP1124092B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10006056 2000-02-10
DE10006056A DE10006056A1 (en) 2000-02-10 2000-02-10 Flexible lance for inspection of steam generator - has 2 flexible metallic bands sandwiched together to provide longitudinal guide sleeve for supply line for treatment or inspection head

Publications (3)

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

Family

ID=7630563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01101966A Expired - Lifetime EP1124092B1 (en) 2000-02-10 2001-01-29 Flexible lance for working on or inspecting a tube plate of a steam generator

Country Status (4)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015118615B3 (en) * 2015-10-30 2016-09-01 Areva Gmbh Flexible lance for working or inspecting a tube plate of a steam generator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10006066A1 (en) * 2000-02-10 2001-08-30 Siemens Ag Flexible lance for processing or inspecting a tube sheet of a steam generator

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514108B1 (en) * 1981-10-06 1986-06-13 Framatome Sa PROCESS AND DEVICE FOR REMOVING SLUDGE FROM THE TUBULAR PLATE OF STEAM GENERATORS
WO1983002657A1 (en) 1982-01-25 1983-08-04 Kraftwerk Union Ag Device for handling passages for pipes, spraying head and related spraying method for high pressure purges of heat exchangers
US5286154A (en) * 1987-03-18 1994-02-15 Electric Power Research Institute, Inc. In bundle foreign object search and retrieval apparatus
EP0459597A1 (en) * 1987-03-18 1991-12-04 Electric Power Research Institute, Inc Flexible lance for steam generator secondary side sludge removal
JP3599745B2 (en) * 1995-03-15 2004-12-08 フラマトム アンプ ゲゼルシャフト ミット ベシュレンクテル ハフツング Flexible lance for processing or inspection of steam generator tube floor
WO1998044291A1 (en) * 1997-03-28 1998-10-08 Electric Power Research Institute, Inc. Variable tension lance support
US6412449B1 (en) * 1998-07-29 2002-07-02 The Babcock & Wilcox Company Segmented lance assembly
DE10006066A1 (en) * 2000-02-10 2001-08-30 Siemens Ag Flexible lance for processing or inspecting a tube sheet of a steam generator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015118615B3 (en) * 2015-10-30 2016-09-01 Areva Gmbh Flexible lance for working or inspecting a tube plate of a steam generator
WO2017072209A1 (en) 2015-10-30 2017-05-04 Areva Gmbh Flexible lance for machining or inspecting a tubesheet of a boiler

Also Published As

Publication number Publication date
ES2324392T3 (en) 2009-08-06
EP1124092A3 (en) 2002-09-11
DE10006056A1 (en) 2001-08-30
ATE430287T1 (en) 2009-05-15
DE50114860D1 (en) 2009-06-10
EP1124092A2 (en) 2001-08-16

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