EP0544579B1 - Wärmetauscher mit U-Rohren und Anti-Auftriebshalterung - Google Patents

Wärmetauscher mit U-Rohren und Anti-Auftriebshalterung Download PDF

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Publication number
EP0544579B1
EP0544579B1 EP92403155A EP92403155A EP0544579B1 EP 0544579 B1 EP0544579 B1 EP 0544579B1 EP 92403155 A EP92403155 A EP 92403155A EP 92403155 A EP92403155 A EP 92403155A EP 0544579 B1 EP0544579 B1 EP 0544579B1
Authority
EP
European Patent Office
Prior art keywords
tubes
heat exchanger
layers
slots
bundle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92403155A
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English (en)
French (fr)
Other versions
EP0544579A1 (de
Inventor
Gérard Boula
Jean-Pierre Roinjard
Christian Valadon
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 NP SAS
Original Assignee
Framatome SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Framatome SA filed Critical Framatome SA
Publication of EP0544579A1 publication Critical patent/EP0544579A1/de
Application granted granted Critical
Publication of EP0544579B1 publication Critical patent/EP0544579B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/06—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits having a single U-bend
    • 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
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/20—Supporting arrangements, e.g. for securing water-tube sets
    • F22B37/205—Supporting and spacing arrangements for tubes of a tube bundle
    • F22B37/206—Anti-vibration supports for the bends of U-tube steam generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0132—Auxiliary supports for elements for tubes or tube-assemblies formed by slats, tie-rods, articulated or expandable rods

Definitions

  • the invention relates to a heat exchanger comprising a bundle of U-shaped tubes, the curved intermediate part of which is held by a new type anti-theft support device.
  • the invention applies in particular to steam generators which are used in nuclear power plants to ensure the transfer of heat between the primary circuit and the secondary circuit of the pressurized water reactor.
  • primary water In these steam generators, after it has been reheated in the reactor core, the water in the primary circuit (hereinafter called “primary water”) circulates in a bundle of inverted U-shaped tubes, to transfer the heat that 'it conveys water to the secondary circuit (hereinafter called “secondary water”), in order to transform it into vapor.
  • secondary water the secondary circuit
  • the inverted U-shaped tubes of the bundle are arranged in parallel layers and their rectilinear branches pass through horizontal spacer plates which ensure their relative positioning over most of the height of the bundle.
  • the relative positioning between the tubes is maintained by anti-vibration bars. More specifically, at least one more or less open V-shaped bar is usually placed between each pair of adjacent tube plies, to prevent the tubes from vibrating into this upper part of the bundle, which could result from the circulation of water inside and outside the tubes. All the anti-vibration bars are linked together, beyond the bundle of tubes, by connecting pins welded to the ends of the bars.
  • the anti-take-off stirrups have the disadvantage of joining together several tubes of the bundle, which creates constraints in the event of differential expansions between these tubes, in particular if one or more of them is are blocked during the life of the steam generator.
  • the invention specifically relates to a heat exchanger in which the maintenance of the bundle tubes in the upper part of the latter is ensured conventionally by anti-vibration bars connected together by connecting pins, but in which the anti-take-off stirrups traditionally used are eliminated and replaced by anti-take-off means of a different nature, which do not have the drawbacks of anti-take-off stirrups take off and can be easily assembled during the manufacture of the exchanger.
  • this result is obtained by means of a heat exchanger comprising a bundle of U-shaped tubes arranged in layers, each tube comprising two rectilinear parts and a curved intermediate part, spacer plates through which the rectilinear parts pass.
  • the tubes at least one anti-vibration bar disposed between each pair of plies of adjacent tubes, in their curved intermediate part, pins for connecting the anti-vibration bars, and anti-theft means of the assembly formed by the anti-vibration bars and the pins connecting, in which the anti-take-off means comprise an elongated structure fixed to the spacer plate closest to the curved intermediate parts of the tubes, inside these curved parts, perpendicular to said plies, characterized in that the elongated structure comprises, between each pair of adjacent plies of tubes, at least one notch which opens out through an access slot on an edge of this structure facing the curved parts of the tubes, an anti-vibration bar being received in each notch.
  • the arrangement proposed in accordance with the invention makes it possible for the anti-vibration bars to support all of the tubes of each ply, that is to say from the smallest bending radius to the largest, which n was not always the case in the prior art.
  • the notches formed in the elongated structure comprise groups of notches receiving all the anti-vibration bars placed between two adjacent plies, these groups of notches regularly distributed all the n layers ( n being an integer at least equal to 2 and, for example, equal to 8), and unit notches each receiving the anti-vibration bar closest to the elongated structure, for the remaining sheets.
  • the notches comprise groups of notches, all the notches of the same group open onto this edge by a common access slot.
  • the access slots are offset radially towards the outside of the tube bundle, relative to the notches opening into these slots.
  • the elongated structure comprises a rectilinear attachment rail, fixed to the spacer plate closest to the curved parts of the tubes, perpendicular to this plate.
  • the attachment rail can be welded directly to this plate or welded to at least one flange fixed to the spacer plate by fixing means such as screws. .
  • FIG 1 there is shown very schematically a steam generator for use in a nuclear power plant and produced in accordance with the invention. It is recalled, however, that this application is only one embodiment of the invention, which can be applied equally to any heat exchanger comprising U-shaped tubes arranged in a bundle, whatever the primary and secondary fluids which circulate in and around the tubes, and whatever the orientation of the tubes, the main axis of the beam can be oriented vertically as in the example described, horizontally or even obliquely.
  • the steam generator illustrated in FIG. 1 comprises in a known manner a cylindrical external envelope 10, of vertical axis, the internal volume of which is divided into two parts by a horizontal plate 12, called a tube plate, in the immediate vicinity of the convex bottom of the outer casing 10.
  • the tube plate 12 is traversed by a multitude of perforations in which the lower ends are fixed of a set of inverted U-shaped tubes 14, these tubes being arranged in a bundle in the part of the outer casing 10 situated above the tube plate 12.
  • the fixing of the ends of each of the tubes 14 of the bundle on the tube plate 12 is carried out so that the two ends of each tube open below the tube plate 12 respectively in an inlet chamber 16 of primary water and in an outlet chamber 18 of primary water separated from each other by a vertical partition 20.
  • An inlet pipe 22 of primary water and an outlet pipe 24 of primary water open respectively into the inlet chamber 16 and into the outlet chamber 18.
  • Secondary water is admitted into the outer casing 10 through an inlet pipe 26 for secondary water situated at a level higher than the high level of the bundle of tubes 14 and which is connected to the interior of the steam generator by a toroidal manifold 28 opening over its entire periphery by tubes 29 in the form of an inverted J.
  • the secondary water admitted into the outer casing 10 of the steam generator descends by gravity into an annular space formed between this outer casing 10 and an inner casing 30 which encircles the bundle of tubes 14 over its entire height and whose lower end is located near the tube plate 12.
  • the secondary water then rises in the inner envelope 30, circulating around the tubes 14, so that it takes part of the calories conveyed by the primary water and is transforms into vapor in the upper part of the inner envelope 30.
  • the vapor thus formed is taken up in the upper part of the envelope. interior 30 and passes through water vapor separation and steam drying devices well known to specialists and not shown in FIG. 1.
  • the dried steam then leaves the steam generator by an outlet pipe 32 for secondary steam which opens axially in the dome of the outer casing 10.
  • Each of the tubes 14 in inverted U of the bundle of tubes through which the heat exchange takes place between the primary water and the secondary water comprises two rectilinear and vertical parts of great length 14a and 14b and an intermediate part curved in semicircle 14c located at the top of the beam.
  • the support of the straight parts 14a and 14b of the tubes 14 is ensured by a set of spacer plates 34 arranged horizontally at equal distance from each other over the entire height of the straight parts 14a and 14b of the beam tubes. These plates have perforations through which the tubes 14 pass and which provide controlled circulation of the secondary water around these tubes.
  • the upper spacer plate, designated by the reference 34a is situated slightly below the horizontal axis, perpendicular to the plane of FIGS. 1 and 3, on which all the curved parts 14c of the tubes 14 are centered.
  • the tubes 14 are arranged in layers, that is to say that they are situated in vertical planes parallel to the planes of FIGS. 1 and 3 and perpendicular in the plane of FIG. 2.
  • Each of these layers comprises a number of tubes 14 which increases progressively as we approach the vertical axis of the steam generator, the tubes of each sheet having curved intermediate parts 14c whose radius of curvature decreases radially towards the interior of the bundle, as illustrated in FIGS. 1 and 3.
  • anti-vibration bars are used in known manner which are placed between each pair of adjacent plies of tubes 14. More specifically, in the embodiment illustrated in FIGS. 3 to 5, three anti-vibration bars 36a, 36b and 36c (or 36a, 36b 'and 36c') are placed between each pair of adjacent plies of tubes 14 three the shape of a V with a rounded top, arranged symmetrically with respect to the plane of symmetry of the bundle of tubes 14 passing through the vertical axis of the steam generator and oriented perpendicularly to FIGS. 1 and 3.
  • the three anti-vibration bars 36a, 36b and 36c (or 36a, 36b 'and 36c') which are placed between each pair of adjacent tube layers differ essentially in their apex angle and in their position.
  • the antivibration bar 36a closest to the upper spacer plate 34a has an obtuse angle at the apex
  • the intermediate antivibration bar 36b (or 36b ') has an apex angle close to 90 °
  • the antivibration bar 36c ( or 36c ') the farthest from the upper spacer plate 34a has an acute apex angle.
  • all the anti-vibration bars 36a are connected together, beyond the outer tubes of the bundle of tubes 14, by connecting pins 38a welded to the ends of the bars 36a which project outside the bundle.
  • connecting pins 38b and 38c are welded respectively to the ends of the anti-vibration bars 36b, 36b 'and 36c, 36c', beyond the outer tubes of the tube bundle 14, so as to connect together all the anti-vibration bars 36b, 36b 'and all the anti-vibration bars 36c, 36c'.
  • the invention relates more precisely to a new type anti-theft device, which is associated with the assembly formed by the anti-vibration bars 36a, 36b, 36b ', 36c and 36c' and by the connecting pins 38a, 38b and 38c, to prevent this assembly from partially escaping between the layers of tubes 14 under the effect of vibrations generated in the latter by the circulation of water.
  • this anti-flight device comprises an elongated structure 40 which is fixed to the upper spacer plate 34a, inside the curved parts 14c of the tubes 14 or bundle, perpendicular to the sheets formed by these tubes, that is to say in a direction perpendicular to the planes of Figures 1 and 3, passing through the vertical axis of the steam generator and on which are the centers of the curved parts 14c of the tubes.
  • This elongated structure 40 mainly comprises a rectilinear attachment rail 42.
  • the attachment rail 42 is welded on flanges 44, regularly distributed, themselves fixed on the spacer plate upper 34a by fixing means such as screws or bolts 46.
  • the soles 44 can be replaced by a single sole extending over the entire length of the attachment rail 42.
  • the hanging rail 42 can also be directly welded to the upper spacer plate 34a, if the materials constituting these two parts allow it.
  • the attachment rail 42 has, over its entire length, notches in which the central parts of the anti-vibration bars 36a, 36b 'and 36c' are received.
  • the fastening rail 42 comprises, between certain pairs of plies of adjacent tubes 14, groups of three notches 48a, 48b and 48c and, between other pairs of plies of adjacent tubes, a single notch 50. More precisely , the groups of three notches 48a, 48b and 48c are regularly distributed every eight plies of tubes in the example shown, while the attachment rail 42 has a single notch 50 for all the other remaining plies.
  • Each of the groups of three notches 48a, 48b and 48c is placed in a plane containing a group of three anti-vibration bars 36a, 36b 'and 36c', and these three notches open onto an edge 42a of the hanging rail 42 facing the parts curved tubes 14c through a common access slot 52.
  • each unitary notch 50 is also placed in the same plane as a group of three anti-vibration bars 36a, 36b and 36c, but it receives only the central part of the anti-vibration bar 36a closest to the axis of the beam. of tubes. These unitary notches 50 are aligned with the notches 48c of the groups of notches 48a, 48b and 48c closest to the edge 42a of the rail 42.
  • the introduction of the anti-vibration bars 36a into the notches 50 is also carried out by an access slot 54 which opens onto the edge 42a of the attachment rail 42.
  • the access slots 52 and 54 are oriented parallel to the planes containing the groups of anti-vibration bars 36a, 36b ', 36c' and 36a, 36b, 36c which correspond to them, and offset radially outwards from the bundle of tubes with respect to these planes.
  • the anti-vibration bars 36a, 36b 'and 36c' can be successively introduced through the slot 52 and put into place in the corresponding notches 48a, 48b and 48c after the adjacent ply of tubes 14 closest to the axis of the beam of tubes has been installed.
  • the anti-vibration bars 36a, 36b 'and 36c' are automatically maintained.
  • the anti-vibration bar 36a of each of the groups of bars 36a, 36b, 36c can be introduced into the notch 50 by the slot 54 after the adjacent ply of tubes closest to the beam axis has been implementation. The maintenance of this anti-vibration bar 36a is ensured when the next layer of tubes is put in place.
  • the antivibration bars 36a closest to the axis of the tube bundle are almost the same when these bars are hooked in the notches 48a and when they are hooked in the notches 50.
  • the antivibration bars 36b 'and 36c' which are hooked in the notches 48b and 48c have a smaller apex angle than the corresponding anti-vibration bars 36b, 36c which are not hung in these notches.
  • those which are not hung in notches have been designated by the references 36b and 36c, while the bars which are hung in the notches 48b and 48c have been designated by the references 36b 'and 36c 'in Figures 3 to 5.
  • the assembly of the tubes 14 of the steam generator according to the invention is advantageously carried out in the manner described in the document FR-A-2 603 364.
  • the assembly constituted by the anti-vibration bars 36a, 36b, 36c, 36b 'and 36c' and by the connecting pins 38a, 38b and 38c is attached to the upper spacer plate 34a, so that its flight is prevented, without it being necessary to have recourse to anti-flight stirrups which risk creating stresses in the event of differential expansions between the encircled tubes by these stirrups, in particular in the event of blockage of one or more of these tubes.
  • This structure also makes it possible for the anti-vibration bars 36a, 36b, 36c, 36b 'and 36c' to support all of the tubes 14 of each ply, that is to say of the smallest bending radius of the curved part 14c up to 'at the greatest.
  • the anti-take-off device according to the invention allows easy installation of the anti-vibration bars as and when the different layers of tubes 14 of the bundle are put in place.
  • the assembly procedure of the steam generator therefore remains practically unchanged.
  • the invention is not limited to the embodiment which has just been described by way of example.
  • the invention applies to any heat exchanger comprising a bundle of U-shaped tubes, whatever the orientation of the bundle and the application concerned.
  • the invention can be used regardless of the number of anti-vibration bars placed between the successive layers of tubes and the attachment of the bars may concern all of them or only a part of them as in the example described. In the latter case, groups of notches receiving all the corresponding anti-vibration bars must be distributed among unitary notches, all of the n layers of tubes, so that the assembly in place is ensured. This number n can then be any number greater than or equal to two.

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  • 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)

Claims (7)

  1. Wärmetauscher, mit einem Bündel von U-Rohren (14), die in Ebenen angeordnet sind, wobei jede Röhre zwei geradelinige Teile (14a, 14b) und einen gebogenen Zwischenteil (14c) hat, mit Spannplatten (34), die sich über die geradelinigen Teile der Rohre erstrecken, zumindest einer Antivibrationsstange (36a, 36b, 36c, 36b', 36c'), die zwischen jedem Paar von aneinandergrenzenden Rohrwicklungen und in deren gebogenem Zwischenteil angeordnet ist, mit Verbindungsnadeln (38a, 38b, 38c) der Antivibrationsstangen, und Mitteln gegen ein Ablösen der Anordnung, die aus den Antivibrationsstangen und den Verbindungsnadeln gebildet ist, und in der die Mittel gegen das Ablösen eine verlängerte Struktur (40) aufweisen, die an derjenigen Spannplatte (34a) befestigt ist, die den gebogenen Zwischenteilen (14c) der Rohre am nächsten liegt, innerhalb dieser gebogenen Teile, rechtwinkelig zu den Ebenen, dadurch gekennzeichnet, daß die verlängerte Struktur (40) zwischen jedem Paar von nebeneinanderliegenden Ebenen zumindest eine Ausnehmung (48a, 48b, 48c, 50) trägt, welche in einen Zugangsschlitz (52, 54) in einer Kante (42a) dieser Struktur einmündet, welche in Richtung der gebogenen Teile (14c) der Rohre weist, wobei in jeder Ausnehmung ein Antivibrationsstab (36a, 36b', 36c') angeordnet ist.
  2. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß zumindest zwei Antivibrationsstangen (36a, 36b, 36c, 36b', 36c') zwischen einem jeden Paar von nebeneinander angeordneten Rohrebenen angeordnet sind, wobei die Ausnehmungen, die in der verlängerten Struktur (40) ausgebildet sind, zwei Gruppen von Ausnehmungen (48a, 48b, 48c) umfassen, die alle Antivibrationsstangen (36a, 36b', 36c') aufnehmen, die zwischen zwei nebeneinander angeordneten Ebenen angeordnet sind, wobei diese Gruppen von Ausnehmungen alle n Ebenen gleichmäßig verteilt sind, und gleichförmige Ausnehmungen (50), die jeweils den Antivibrationsstab (36a) für die verbleibenden Ebenen aufnehmen, der der verlängerten Struktur am nächsten ist.
  3. Wärmetauscher nach Anspruch 2, dadurch gekennzeichnet, daß die Ausnehmungen (48a, 48b, 48c) derselben Gruppe von Ausnehmungen in der Kante (42a) sich in einen gemeinsamen Zugangsschlitz (52) öffnen.
  4. Wärmetauscher nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, daß die Zugangsschlitze (52, 54) bezüglich der Ausnehmungen (48a, 48b, 48c, 50), die sich in die Schlitze öffnen radial zur Außenseite des Bündels der Rohre (14) versetzt sind.
  5. Wärmetauscher nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die verlängerte Struktur (40) eine geradlinige Aufhängungsschiene umfaßt, die an der Spannplatte (34a) rechtwinkelig zu der Spannplatte befestigt ist, welche dem gebogenen Teil (14a) der Rohre am nächsten liegt.
  6. Wärmetauscher nach Anspruch 5, dadurch gekennzeichnet, daß die Aufhängungsschiene (42) auf zumindest einen Fuß (44) geschweißt ist, der mit Hilfe von Befestigungsmitteln (46) an der Spannplatte (34a) befestigt ist.
  7. Wärmetauscher nach Anspruch 5, dadurch gekennzeichnet, daß die Aufhängungsschiene (42) direkt auf die Spannplatte (34a) geschweißt ist.
EP92403155A 1991-11-27 1992-11-24 Wärmetauscher mit U-Rohren und Anti-Auftriebshalterung Expired - Lifetime EP0544579B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9114655 1991-11-27
FR9114655A FR2684172B1 (fr) 1991-11-27 1991-11-27 Echangeur de chaleur, a tubes en u equipes d'un dispositif de supportage anti-envol.

Publications (2)

Publication Number Publication Date
EP0544579A1 EP0544579A1 (de) 1993-06-02
EP0544579B1 true EP0544579B1 (de) 1996-08-21

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EP92403155A Expired - Lifetime EP0544579B1 (de) 1991-11-27 1992-11-24 Wärmetauscher mit U-Rohren und Anti-Auftriebshalterung

Country Status (10)

Country Link
US (1) US5269371A (de)
EP (1) EP0544579B1 (de)
JP (1) JPH05240592A (de)
KR (1) KR100256198B1 (de)
CN (1) CN1049517C (de)
CA (1) CA2083578A1 (de)
CZ (1) CZ284455B6 (de)
DE (1) DE69212961D1 (de)
FR (1) FR2684172B1 (de)
RU (1) RU2068165C1 (de)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE102007040183A1 (de) 2007-08-25 2009-03-05 Sensitec Naomi Gmbh Magnetfeldsensor zur Erfassung eines äußeren magnetischen Felds, insbesondere des Erdmagnetfelds, sowie mit solchen Magnetfeldsensoren gebildetes Magnetfeldsensorsystem

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FR2707382B1 (fr) * 1993-07-09 1995-09-22 Framatome Sa Echangeur de chaleur comportant un faisceau de tubes cintrés en U et des barres antivibratoires entre les parties cintrées des tubes.
RU2224179C2 (ru) * 2001-12-28 2004-02-20 Государственное дочернее предприятие Научно-испытательный центр Центрального института авиационного моторостроения Воздухоподогреватель
US7699093B2 (en) 2005-10-20 2010-04-20 Exxonmobil Research And Engineering Company Anti-vibration tube support for tube bundles having U-shaped bends
US9567876B2 (en) * 2009-06-05 2017-02-14 Gas Technology Institute Reactor system and solid fuel composite therefor
US20140116360A1 (en) * 2012-10-31 2014-05-01 Westinghouse Electric Company Llc Method and apparatus for securing tubes in a steam generator against vibration
US20150083365A1 (en) * 2013-09-25 2015-03-26 Westinghouse Electric Company Llc Steam generator and method of securing tubes within a steam generator against vibration
CN109654913B (zh) * 2018-12-06 2020-05-01 中广核工程有限公司 核电站换热器弯管折流结构
US11047631B2 (en) * 2019-02-20 2021-06-29 Caterpillar Inc. Bumper clip for tube type heat exchangers
HUE072684T2 (hu) * 2019-04-30 2025-12-28 Paprec Group Vízszintes járattal ellátott kazán hõcserélõje köré szerelt önhordó modul, valamint eljárás ilyen kazán vízszintes járatának telepítésére és karbantartására

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US2853278A (en) * 1956-04-05 1958-09-23 Griscom Russell Co Anti-vibration crate for heat exchange tubes
US3007679A (en) * 1960-06-22 1961-11-07 Westinghouse Electric Corp Anti-vibration structure for heat exchanger tubes
US3199582A (en) * 1962-04-06 1965-08-10 Foster Wheeler Corp Heat exchanger tube anti-vibration structure
US3212567A (en) * 1962-05-08 1965-10-19 Combustion Eng Anti-vibration support means
FR2603364B1 (fr) * 1986-08-27 1988-11-10 Framatome Sa Procede de placement de tubes dans un generateur de vapeur
US5005637A (en) * 1986-11-05 1991-04-09 Phillips Petroleum Company Heat exchanger U-bend tube support
US4895204A (en) * 1987-12-24 1990-01-23 Foster Wheeler Energy Corporation Tube support vibration suppression device and method
US4991645A (en) * 1988-06-20 1991-02-12 Westinghouse Electric Corp. Steam generator tube antivibration apparatus
FR2644281B1 (fr) * 1989-03-09 1991-06-07 Framatome Sa Dispositif de stabilisation des tubes du faisceau d'un generateur de vapeur comportant des barres antivibratoires

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007040183A1 (de) 2007-08-25 2009-03-05 Sensitec Naomi Gmbh Magnetfeldsensor zur Erfassung eines äußeren magnetischen Felds, insbesondere des Erdmagnetfelds, sowie mit solchen Magnetfeldsensoren gebildetes Magnetfeldsensorsystem

Also Published As

Publication number Publication date
KR100256198B1 (ko) 2000-05-15
EP0544579A1 (de) 1993-06-02
CZ347492A3 (en) 1993-06-16
FR2684172A1 (fr) 1993-05-28
RU2068165C1 (ru) 1996-10-20
CA2083578A1 (en) 1993-05-28
CN1049517C (zh) 2000-02-16
CZ284455B6 (cs) 1998-12-16
KR930010515A (ko) 1993-06-22
FR2684172B1 (fr) 1993-12-31
DE69212961D1 (de) 1996-09-26
US5269371A (en) 1993-12-14
JPH05240592A (ja) 1993-09-17
CN1073032A (zh) 1993-06-09

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