EP1124093A2 - Lance flexible permettant d'effectuer des opérations ou des contrôles sur la plaque tubulaire d'un générateur de vapeur - Google Patents

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

Info

Publication number: EP1124093A2
Authority: EP; European Patent Office
Prior art keywords: band; flexible lance; flexible; longitudinal direction; lance
Prior art date: 2000-02-10
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

EP01101967A

Other languages

German (de)

English (en)

Other versions

EP1124093B1 (fr

EP1124093A3 (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

Siemens Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2000-02-10

Filing date

2001-01-29

Publication date

2001-08-16

2001-01-29 Application filed by Siemens AG, Framatome ANP GmbH, Siemens Corp filed Critical Siemens AG

2001-08-16 Publication of EP1124093A2 publication Critical patent/EP1124093A2/fr

2003-02-19 Publication of EP1124093A3 publication Critical patent/EP1124093A3/fr

2011-11-09 Application granted granted Critical

2011-11-09 Publication of EP1124093B1 publication Critical patent/EP1124093B1/fr

2021-01-29 Anticipated expiration legal-status Critical

Status 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 or arrangements for removing water, minerals or sludge from boilers ; Arrangement of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/483—Devices or arrangements for removing water, minerals or sludge from boilers ; Arrangement 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 and one attached to it in the longitudinal direction supply line for one Machining arranged at the free end of the first band or inspection head.
a flexible lance 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, especially with a high feed force, can buckle to the side. This is particularly so important if the supply line or one of the Supply lines a capillary or an optical fiber is.
Such glass fibers are used in order to to illuminate and / or observe the cleaning area. Capillaries and glass fibers have the property of falling below a certain minimum radius of curvature.
the invention is therefore based on the object specify flexible lance that is easy to manufacture and in which the supply line is still damaged is protected by kinking the lance.
This task is based on the flexible mentioned at the beginning Lance according to the invention solved by a in the longitudinal direction first tendon arranged on the first ligament, which has a higher bending stiffness than the tape has.
a tendon encompasses everything, especially reversible or elastic, pliable along the Understanding extended stiffening element. With the tendon is easily stiffened without the ligament that the size of the lance would increase.
the Tendon the diameter of which is preferably that of the supply line does not exceed, namely, to the side of the supply line be performed.
the first tendon is used not the supply or control of the machining or Inspection head.
the tendon is exclusive for stiffening the metallic tape.
the supply line is preferably a hose, a Capillary, an electrical line or an optical fiber.
the stiffening is of the tape particularly advantageous because these supply lines are particularly sensitive to kinking and can easily be damaged.
the band openings arranged one behind the other in the longitudinal direction, through which the first tendon is threaded. That way the tendon is particularly easy to attach to the belt in terms of production technology.
the band between areas formed perpendicular to the longitudinal direction of its openings has, which alternately on the one and the extend the other side of the tape. That way is a largely rectilinear canal, in which the tendon below Threading through the openings is easy to insert.
the flexible Lance a second tendon that is more rigid or flexural strength than the tape and the spaced from the first tendon and in the same way as this is appropriate.
the two tendons are preferably symmetrical on both sides arranged the supply line. With two tendons it is Band particularly safe and reliable against kinking and also protected against twisting or twisting.
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 flexible lance a flexible metallic second band, which in Arranged longitudinally and connected to the first band is.
the second band increases the risk of kinking the flexible lance further reduced.
the first band and the second ligament through the first tendon and optionally through the second tendon joined together serves in this So not just the increase in stiffness, but also as a connecting element of the two bands.
the open side of a first formation is preferably on first tape for receiving the supply line from the second Band covered forming a guide channel.
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 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 same applies to the optional second tendon.
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 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.
the first tendon or at least one of the tendons has a higher bending stiffness than both tapes together.
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 - 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. 6 A second embodiment of a flexible lance 1 according to the invention is shown in FIG.
the band 60 has a first row 62 of openings 64, through which a first tendon 27 is threaded.
the band 60 On the opposite On the side, the band 60 has a second row 66 of openings 68 through which a second chord 29 in the same The way the first tendon 27 is threaded.
the rows 62, 66 extend in the longitudinal direction 31.
Between the Openings 64 and 68 have band 60 formed areas 70, 71 or 72, 73, which alternate on one and extend the other side of band 60 (see Figure 5).
the two tendons 27, 29 are largely rectilinear in a simple manner in the band 60 and with connectable to this.
the band 60 has a third Row 78 with openings 80 through which a supply line 70, a capillary in the example shown is.
the band 60 is also like in the area of the third row 78 in rows 62, 66 alternately on different sides shaped or bent out so that the supply line 70 also largely linear in the band 60 is insertable and comes to lie in the band level.
the supply line 17 ends at the free end of volume 60 in one Spray nozzle 82, which is a machining or inspection head 171 (see also Figure 7) forms.
FIG 7 is the use of the flexible lance 1 for processing or inspecting a tube sheet 161 of a steam generator 163 shown.
the steam generator 163 is included in the Tubes 165 shown in cross section are only shown in sections.
the tubes 165 are bundled on both sides of one another Rohrgasse 164 arranged through a hand hole 166 in one Wall 167 of the steam generator 163 is accessible from the outside.
Rohrgasse 164 becomes one for machining or inspection only schematically indicated manipulator 169 introduced, the is movable back and forth in direction 168.
the flexible lance 1 in the spaces between the tubes 165 are introduced.
On Machining tools attached to the end of the flexible lance or inspection head 171 is thus close to that areas to be cleaned or inspected between the pipes 165 approachable.
the lance 1 moves in the direction 172 and is not shown by an external Drum unwound.

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)
Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

EP01101967A 2000-02-10 2001-01-29 Lance flexible permettant d'effectuer des opérations ou des contrôles sur la plaque tubulaire d'un générateur de vapeur Expired - Lifetime EP1124093B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE10006066		2000-02-10
DE10006066A DE10006066A1 (de)	2000-02-10	2000-02-10	Flexible Lanze zum Bearbeiten oder Inspizieren eines Rohrbodens eines Dampferzeugers

Publications (3)

Publication Number	Publication Date
EP1124093A2 true EP1124093A2 (fr)	2001-08-16
EP1124093A3 EP1124093A3 (fr)	2003-02-19
EP1124093B1 EP1124093B1 (fr)	2011-11-09

Family

ID=7630571

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP01101967A Expired - Lifetime EP1124093B1 (fr)	2000-02-10	2001-01-29	Lance flexible permettant d'effectuer des opérations ou des contrôles sur la plaque tubulaire d'un générateur de vapeur

Country Status (4)

Country	Link
EP (1)	EP1124093B1 (fr)
AT (1)	ATE533012T1 (fr)
DE (1)	DE10006066A1 (fr)
ES (1)	ES2377850T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1124092A3 (fr) *	2000-02-10	2002-09-11	Framatome ANP GmbH	Lance flexible pemettant d'effectuer des opérations ou des contrôles sur la plaque tubulaire d'un générateur de vapeur
CN105074333A (zh) *	2013-02-20	2015-11-18	阿海珐有限公司	用于去除粘附在蒸汽发生器的管底处的沉积物的喷枪
RU2721154C2 (ru) *	2015-10-30	2020-05-18	Фраматом Гмбх	Гибкая пика для механической обработки или обследования трубной решетки котла
CN111830591A (zh) *	2019-04-23	2020-10-27	斗山重工业建设有限公司	蒸汽发生器检查装置

Family Cites Families (6)

* 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
DE59603677D1 (de) *	1995-03-15	1999-12-23	Siemens Ag	Flexible lanze zum bearbeiten oder inspizieren eines rohrbodens eines dampferzeugers
WO1998044291A1 (fr) *	1997-03-28	1998-10-08	Electric Power Research Institute, Inc.	Support de lance a tension variable
DE10006056A1 (de) *	2000-02-10	2001-08-30	Siemens Ag	Flexible Lanze zum Bearbeiten oder Inspizieren eines Rohrbodens eines Dampferzeugers

2000
- 2000-02-10 DE DE10006066A patent/DE10006066A1/de not_active Ceased
2001
- 2001-01-29 ES ES01101967T patent/ES2377850T3/es not_active Expired - Lifetime
- 2001-01-29 AT AT01101967T patent/ATE533012T1/de active
- 2001-01-29 EP EP01101967A patent/EP1124093B1/fr not_active Expired - Lifetime

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1124092A3 (fr) *	2000-02-10	2002-09-11	Framatome ANP GmbH	Lance flexible pemettant d'effectuer des opérations ou des contrôles sur la plaque tubulaire d'un générateur de vapeur
CN105074333A (zh) *	2013-02-20	2015-11-18	阿海珐有限公司	用于去除粘附在蒸汽发生器的管底处的沉积物的喷枪
CN105074333B (zh) *	2013-02-20	2017-03-22	阿海珐有限公司	用于去除粘附在蒸汽发生器的管底处的沉积物的喷枪
RU2721154C2 (ru) *	2015-10-30	2020-05-18	Фраматом Гмбх	Гибкая пика для механической обработки или обследования трубной решетки котла
CN111830591A (zh) *	2019-04-23	2020-10-27	斗山重工业建设有限公司	蒸汽发生器检查装置
CN111830591B (zh) *	2019-04-23	2024-03-26	斗山重工业建设有限公司	蒸汽发生器检查装置

Also Published As

Publication number	Publication date
ATE533012T1 (de)	2011-11-15
ES2377850T3 (es)	2012-04-02
EP1124093B1 (fr)	2011-11-09
DE10006066A1 (de)	2001-08-30
EP1124093A3 (fr)	2003-02-19

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