EP0385219A2 - Bouchon de réparation et méthode pour son introduction dans le tube d'un échangeur de chaleur - Google Patents

Bouchon de réparation et méthode pour son introduction dans le tube d'un échangeur de chaleur Download PDF

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Publication number
EP0385219A2
EP0385219A2 EP90103157A EP90103157A EP0385219A2 EP 0385219 A2 EP0385219 A2 EP 0385219A2 EP 90103157 A EP90103157 A EP 90103157A EP 90103157 A EP90103157 A EP 90103157A EP 0385219 A2 EP0385219 A2 EP 0385219A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
exchanger tube
repair insert
sleeve
nut
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.)
Withdrawn
Application number
EP90103157A
Other languages
German (de)
English (en)
Other versions
EP0385219A3 (fr
Inventor
Walter Dipl.-Ing. Vanselow
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.)
Siemens AG
Original Assignee
Siemens AG
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 filed Critical Siemens AG
Publication of EP0385219A2 publication Critical patent/EP0385219A2/fr
Publication of EP0385219A3 publication Critical patent/EP0385219A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F11/00Arrangements for sealing leaky tubes and conduits
    • F28F11/02Arrangements for sealing leaky tubes and conduits using obturating elements, e.g. washers, inserted and operated independently of each other
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/4935Heat exchanger or boiler making
    • Y10T29/49352Repairing, converting, servicing or salvaging
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/4935Heat exchanger or boiler making
    • Y10T29/49361Tube inside tube
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49718Repairing
    • Y10T29/49732Repairing by attaching repair preform, e.g., remaking, restoring, or patching
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49718Repairing
    • Y10T29/49732Repairing by attaching repair preform, e.g., remaking, restoring, or patching
    • Y10T29/49739Mechanically attaching preform by separate fastener
    • Y10T29/49741Screw threaded fastener
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining
    • Y10T29/49908Joining by deforming
    • Y10T29/49938Radially expanding part in cavity, aperture, or hollow body
    • Y10T29/4994Radially expanding internal tube

Definitions

  • the invention relates to a repair insert for a heat exchanger tube with a sleeve through which a tubular base body protrudes on both sides, the base body being supported at the end with its head part on the sleeve and provided at the other end with a thread and a nut for bracing in the heat exchanger tube is.
  • the invention also relates to a method for inserting such a repair insert into a heat exchanger tube.
  • the invention has for its object to eliminate the disadvantages mentioned above and to provide a repair insert that is simple to manufacture and safe in operation. A suitable procedure should also be specified for inserting the repair insert.
  • the first-mentioned object is achieved in that at least one slip ring is arranged at one end between the sleeve and the head part and at the other end between the sleeve and the nut, which - starting from its relaxed, conical shape - can be converted into a flattened shape and enlarged in diameter by relative movement between the base body and the sleeve.
  • a method is provided according to the invention in which the repair insert is inserted into the heat exchanger tube, after which the nut is tightened by means of a tool, so that the slip ring is enlarged axially, as a result of which a force-fitting, largely liquid-tight connection is made.
  • slip rings 15 have a frustoconical (conical) shape on average. By compressing in the axial direction, the slip rings 15 can be enlarged in their diameter. This compression takes place in the present repair insert 1 by tightening the nut 13.
  • the nut 13 can, for example, as shown, be designed as a hexagon nut. Tightening is then done with a ring spanner tool. Other configurations are also possible, for example as a slotted nut or provided with holes or recesses. With a suitable tool, the tightening can also be carried out from outside the end of the tube 3 in this case.
  • the head part 9 is designed as a flange with an annular support surface 10.
  • great tensioning forces can be achieved with the repair insert 1.
  • spacer rings 17 e.g. B. at each end three slip rings 15, 15a, 15b provided.
  • the repair insert 1 per slip ring 15, 15a, 15b exerts less force on the heat exchanger tube 3 with the same tension than in the case with only one slip ring 15.
  • a support ring 19 can also be provided at each end.
  • two elastically deformable slip rings 15a, 15b are provided at the ends, which are offset from one another by 180 ° in their relaxed conical shape (cf. also FIG. 3).
  • the repair insert 1 is dimensioned such that, on the one hand, the sleeve 5 and the spacer rings 17 are not deformed during tensioning and, on the other hand, the base body 7 is as large as possible in its inner diameter so that the flow of the medium 18 is hampered as little as possible.
  • two slip rings 15c are advantageously arranged directly next to one another on the head part 9.
  • the repair insert 1 has a particularly good sealability.
  • the slip rings 15c can be made particularly thin and with a large inner diameter, which allows the inner diameter of the repair insert 1 to be enlarged.
  • two slip rings 15a, 15b in their relaxed, conical shape are offset from one another by 180 °. They are arranged lying apart between the sleeve 5 and the spacer ring 17. When such an arrangement is clamped, axial forces between the repair insert 1 and the heat exchanger tube 3 are eliminated and a particularly uniform distribution of forces is achieved. Spacer rings can also be saved.
  • inverted rings 15a, 15b which can also be referred to as V-shaped in section, can also be achieved with simple means by using only a single inverted ring 15e which is designed in the manner of two conical inverted rings arranged opposite one another is. This is advantageous if particularly high holding forces are to be achieved in the heat exchanger tube 3.
  • the V-shape of the slip ring 15e or the slip rings 15a, 15b can optionally point outwards or inwards. Arrangements of the slip rings 15, 15a, 15b, 15c, 15e can also be provided, which go beyond the representations shown here.
  • the means can be implemented, for example, as an Allen key 21 (see FIG. 3).
  • the nut 13 as already mentioned above, is provided with a slot 24 which allows the engagement of a suitable tool for tightening or loosening the nut 13.
  • the means are also possible, for example as an internal thread 23, as shown in FIGS. 1 and 2.
  • the nut 13 can also be provided with bores 25 which allow the engagement of a mandrel-like tool.
  • the means can optionally be provided at the top and / or at the end - also in different designs.
  • the present repair insert 1 is easy to manufacture. It is still inexpensive to manufacture. It enables the assembly times to be shortened, which in turn results in a reduced radiation exposure of the personnel when exposed to radiation Heat exchanger tubes 3 of a nuclear power reactor are to be repaired. Since no heat is introduced into the material of the repair insert 1 or the heat exchanger tube 3 by welding or soldering in the present repair insert 1, this results in a low susceptibility to corrosion. In addition, the repair insert 1 can be removed and used several times. A special cleaning of the heat exchanger tube 3 before inserting the repair insert 1 is not necessary.
  • repair insert 1 When using the repair insert 1 in the area of a heat exchanger near the bottom, a combination of bracing and welding or soldering technology is also conceivable.
  • the repair insert 1 can be clamped in the upper, inaccessible area of the heat exchanger tube 3 and fastened at the lower end by means of a welding or soldering process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP19900103157 1989-03-03 1990-02-19 Bouchon de réparation et méthode pour son introduction dans le tube d'un échangeur de chaleur Withdrawn EP0385219A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8902572U 1989-03-03
DE8902572U DE8902572U1 (de) 1989-03-03 1989-03-03 Reparatureinlage für ein Wärmetauscherrohr

Publications (2)

Publication Number Publication Date
EP0385219A2 true EP0385219A2 (fr) 1990-09-05
EP0385219A3 EP0385219A3 (fr) 1990-10-31

Family

ID=6836655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900103157 Withdrawn EP0385219A3 (fr) 1989-03-03 1990-02-19 Bouchon de réparation et méthode pour son introduction dans le tube d'un échangeur de chaleur

Country Status (3)

Country Link
US (1) US5079837A (fr)
EP (1) EP0385219A3 (fr)
DE (1) DE8902572U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022167751A1 (fr) * 2021-02-02 2022-08-11 Etablissements Saint Germain Et Straub Equipement et procédé de tubage

Families Citing this family (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5605361A (en) * 1994-05-06 1997-02-25 Entergy Operations, Inc. Replacement nozzle for pressure vessels and method of a attaching same
US5507343A (en) * 1994-10-05 1996-04-16 Texas Bcc, Inc. Apparatus for repairing damaged well casing
GB2315838A (en) * 1996-08-01 1998-02-11 British Gas Plc Apparatus and method for sealing a clearance between a host pipe and a liner pipe
US7357188B1 (en) * 1998-12-07 2008-04-15 Shell Oil Company Mono-diameter wellbore casing
US6745845B2 (en) * 1998-11-16 2004-06-08 Shell Oil Company Isolation of subterranean zones
WO2003004819A2 (fr) * 2001-07-06 2003-01-16 Enventure Global Technology Suspension de colonne perdue
US6575240B1 (en) 1998-12-07 2003-06-10 Shell Oil Company System and method for driving pipe
US6712154B2 (en) * 1998-11-16 2004-03-30 Enventure Global Technology Isolation of subterranean zones
US6634431B2 (en) * 1998-11-16 2003-10-21 Robert Lance Cook Isolation of subterranean zones
GB2384502B (en) * 1998-11-16 2004-10-13 Shell Oil Co Coupling an expandable tubular member to a preexisting structure
US6557640B1 (en) * 1998-12-07 2003-05-06 Shell Oil Company Lubrication and self-cleaning system for expansion mandrel
US7231985B2 (en) * 1998-11-16 2007-06-19 Shell Oil Company Radial expansion of tubular members
US6823937B1 (en) * 1998-12-07 2004-11-30 Shell Oil Company Wellhead
GB2356651B (en) * 1998-12-07 2004-02-25 Shell Int Research Lubrication and self-cleaning system for expansion mandrel
US7185710B2 (en) * 1998-12-07 2007-03-06 Enventure Global Technology Mono-diameter wellbore casing
US20070051520A1 (en) * 1998-12-07 2007-03-08 Enventure Global Technology, Llc Expansion system
GB2344606B (en) * 1998-12-07 2003-08-13 Shell Int Research Forming a wellbore casing by expansion of a tubular member
US7552776B2 (en) * 1998-12-07 2009-06-30 Enventure Global Technology, Llc Anchor hangers
US6758278B2 (en) * 1998-12-07 2004-07-06 Shell Oil Company Forming a wellbore casing while simultaneously drilling a wellbore
AU770359B2 (en) * 1999-02-26 2004-02-19 Shell Internationale Research Maatschappij B.V. Liner hanger
CA2306656C (fr) * 1999-04-26 2006-06-06 Shell Internationale Research Maatschappij B.V. Connexion extensible
US7350563B2 (en) * 1999-07-09 2008-04-01 Enventure Global Technology, L.L.C. System for lining a wellbore casing
US7234531B2 (en) * 1999-12-03 2007-06-26 Enventure Global Technology, Llc Mono-diameter wellbore casing
AU2001292695B2 (en) * 2000-09-18 2006-07-06 Shell Internationale Research Maatschappij B.V. Liner hanger with sliding sleeve valve
US7100685B2 (en) * 2000-10-02 2006-09-05 Enventure Global Technology Mono-diameter wellbore casing
GB2387405A (en) * 2001-01-03 2003-10-15 Enventure Global Technology Mono-diameter wellbore casing
US7410000B2 (en) * 2001-01-17 2008-08-12 Enventure Global Technology, Llc. Mono-diameter wellbore casing
AU2002318438A1 (en) * 2001-07-06 2003-01-21 Enventure Global Technology Liner hanger
WO2004081346A2 (fr) * 2003-03-11 2004-09-23 Enventure Global Technology Appareil destine a la dilatation radiale et a la deformation plastique d'un element tubulaire
US7513313B2 (en) * 2002-09-20 2009-04-07 Enventure Global Technology, Llc Bottom plug for forming a mono diameter wellbore casing
WO2003042486A2 (fr) * 2001-11-12 2003-05-22 Enventure Global Technology Cone de dilatation retractable
US7775290B2 (en) 2003-04-17 2010-08-17 Enventure Global Technology, Llc Apparatus for radially expanding and plastically deforming a tubular member
US20050217866A1 (en) * 2002-05-06 2005-10-06 Watson Brock W Mono diameter wellbore casing
GB2396646B (en) * 2001-09-07 2006-03-01 Enventure Global Technology Adjustable expansion cone assembly
US7290605B2 (en) * 2001-12-27 2007-11-06 Enventure Global Technology Seal receptacle using expandable liner hanger
WO2004018824A2 (fr) * 2002-08-23 2004-03-04 Enventure Global Technology Impulsion magnetique appliquee sur un manchon et procede de formation d'un tubage de puits de forage
WO2004027786A2 (fr) * 2002-09-20 2004-04-01 Enventure Global Technology Manchon protecteur conçu pour des tuyaux extensibles
BRPI0307686B1 (pt) * 2002-02-15 2015-09-08 Enventure Global Technology aparelho para formar um revestimento do furo de poço em um furo de sondagem, método e sistema para formar um revestimento de furo de poço em uma formação subterrânea, e, revestimento de furo de poço posicionado em um furo de sondagem dentro de uma formação subterrânea
AU2003215290A1 (en) * 2002-03-13 2003-09-29 Eventure Global Technology Collapsible expansion cone
EP1501644B1 (fr) * 2002-04-12 2010-11-10 Enventure Global Technology Manchon de protection a elements de raccordement filetes pour suspension de la colonne perdue
EP1501645A4 (fr) * 2002-04-15 2006-04-26 Enventure Global Technology Manchon protecteur destine aux connexions filetees d'un dispositif de suspension pour colonne de tubage perdue expansible
WO2003102365A1 (fr) * 2002-05-29 2003-12-11 Eventure Global Technology Système de dilatation radiale d'un élément tubulaire
GB2418944B (en) * 2002-06-10 2006-08-30 Enventure Global Technology Mono Diameter Wellbore Casing
GB2418217B (en) * 2002-06-12 2006-10-11 Enventure Global Technology Collapsible expansion cone
CA2493669A1 (fr) * 2002-07-24 2004-01-29 Enventure Global Technology Systeme de completion de puits double
US20050173108A1 (en) * 2002-07-29 2005-08-11 Cook Robert L. Method of forming a mono diameter wellbore casing
EP1540128A4 (fr) * 2002-08-23 2006-07-19 Enventure Global Technology Procede de formation d'un tubage d'un puits de forage par couche interposee de scellement de joint
DE60315173T2 (de) * 2002-09-20 2008-04-10 Enventure Global Technology, Houston Bohrlochfutterrohr mit einheitlichem durchmesser
US20050236159A1 (en) * 2002-09-20 2005-10-27 Scott Costa Threaded connection for expandable tubulars
WO2004027392A1 (fr) * 2002-09-20 2004-04-01 Enventure Global Technology Evaluation de formabilite de conduite pour des elements tubulaires extensibles
US20060108123A1 (en) * 2002-12-05 2006-05-25 Frank De Lucia System for radially expanding tubular members
US7886831B2 (en) * 2003-01-22 2011-02-15 Enventure Global Technology, L.L.C. Apparatus for radially expanding and plastically deforming a tubular member
GB2429481B (en) * 2003-02-18 2007-10-03 Enventure Global Technology Protective compression and tension sleeves for threaded connections for radially expandable tubular members
GB2429996B (en) * 2003-02-26 2007-08-29 Enventure Global Technology Apparatus for radially expanding and plastically deforming a tubular member
US20050166387A1 (en) * 2003-06-13 2005-08-04 Cook Robert L. Method and apparatus for forming a mono-diameter wellbore casing
CA2536623A1 (fr) * 2003-09-02 2005-03-10 Enventure Global Technology Procede d'expansion radiale et de deformation plastique d'elements tubulaires
US7712522B2 (en) 2003-09-05 2010-05-11 Enventure Global Technology, Llc Expansion cone and system
CA2577083A1 (fr) 2004-08-13 2006-02-23 Mark Shuster Dispositif d'expansion d'elements tubulaires
SE0501053L (sv) * 2005-05-10 2006-05-16 Kvaerner Power Ab Insatstub samt ett system av insatstuber
EP1915508A2 (fr) * 2005-07-27 2008-04-30 Enventure Global Technology, L.L.C. Procede et appareil destines a coupler des organes tubulaires extensibles
US10612349B2 (en) 2013-11-06 2020-04-07 Halliburton Energy Services, Inc. Downhole casing patch

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3404354A1 (de) * 1984-02-08 1985-12-19 Manfred 2305 Heikendorf Schmidt Verfahren und vorrichtung zum abdichten von rohrleitungen
EP0181250A1 (fr) * 1984-11-06 1986-05-14 Framatome Procédé de réparation par chemisage d'un tube d'un générateur de vapeur et chemise de réparation de ce tube
EP0195978A1 (fr) * 1985-03-25 1986-10-01 Siemens Aktiengesellschaft Bouchon pour fermer des tubes défectueux d'un échangeur de chaleur

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2708696A1 (de) * 1977-03-01 1978-09-07 Deggendorfer Werft Eisenbau Mehrschichtiger rohrboden fuer waermetauscher
FR2426232A1 (fr) * 1978-05-17 1979-12-14 Commissariat Energie Atomique Dispositif pour colmater une fuite dans une portion droite d'un tube d'echangeur de chaleur
US4368571A (en) * 1980-09-09 1983-01-18 Westinghouse Electric Corp. Sleeving method
US4573248A (en) * 1981-06-04 1986-03-04 Hackett Steven B Method and means for in situ repair of heat exchanger tubes in nuclear installations or the like
US4581801A (en) * 1981-08-31 1986-04-15 Westinghouse Electric Corp. Sleeving method
DE3212223A1 (de) * 1982-04-01 1983-11-03 Kraftwerk Union AG, 4330 Mülheim Rohrverschliesseinrichtung, insbesondere fuer waermetauscherrohre
DE3300460C2 (de) * 1983-01-08 1985-12-12 Brown Boveri Reaktor GmbH, 6800 Mannheim Vorrichtung zur Prüfung und/oder zur Reparatur von Dampferzeugerrohren
US4485847A (en) * 1983-03-21 1984-12-04 Combustion Engineering, Inc. Compression sleeve tube repair
US4713870A (en) * 1985-03-26 1987-12-22 Raychem Corporation Pipe repair sleeve apparatus and method of repairing a damaged pipe
US4724899A (en) * 1986-12-16 1988-02-16 Nordson Corporation Expandable insert for a heat exchanger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3404354A1 (de) * 1984-02-08 1985-12-19 Manfred 2305 Heikendorf Schmidt Verfahren und vorrichtung zum abdichten von rohrleitungen
EP0181250A1 (fr) * 1984-11-06 1986-05-14 Framatome Procédé de réparation par chemisage d'un tube d'un générateur de vapeur et chemise de réparation de ce tube
EP0195978A1 (fr) * 1985-03-25 1986-10-01 Siemens Aktiengesellschaft Bouchon pour fermer des tubes défectueux d'un échangeur de chaleur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022167751A1 (fr) * 2021-02-02 2022-08-11 Etablissements Saint Germain Et Straub Equipement et procédé de tubage

Also Published As

Publication number Publication date
US5079837A (en) 1992-01-14
DE8902572U1 (de) 1990-07-05
EP0385219A3 (fr) 1990-10-31

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