EP0389759B1 - Echangeur de chaleur à matrice tubulaire - Google Patents

Echangeur de chaleur à matrice tubulaire Download PDF

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Publication number
EP0389759B1
EP0389759B1 EP90102444A EP90102444A EP0389759B1 EP 0389759 B1 EP0389759 B1 EP 0389759B1 EP 90102444 A EP90102444 A EP 90102444A EP 90102444 A EP90102444 A EP 90102444A EP 0389759 B1 EP0389759 B1 EP 0389759B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
carrier strips
exchanger according
strips
tubes
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
EP90102444A
Other languages
German (de)
English (en)
Other versions
EP0389759A1 (fr
Inventor
Alfred Jabs
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.)
MTU Aero Engines AG
Original Assignee
MTU Motoren und Turbinen Union Muenchen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MTU Motoren und Turbinen Union Muenchen GmbH filed Critical MTU Motoren und Turbinen Union Muenchen GmbH
Publication of EP0389759A1 publication Critical patent/EP0389759A1/fr
Application granted granted Critical
Publication of EP0389759B1 publication Critical patent/EP0389759B1/fr
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
    • 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
    • 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
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/355—Heat exchange having separate flow passage for two distinct fluids
    • Y10S165/40—Shell enclosed conduit assembly
    • Y10S165/401—Shell enclosed conduit assembly including tube support or shell-side flow director
    • Y10S165/416—Extending transverse of shell, e.g. fin, baffle
    • Y10S165/426—Clamped tube spacer or support

Definitions

  • the invention relates to a heat exchanger with a tube matrix made up of a multiplicity of parallel profile tubes which are held as cross bars in a wickerwork made of flexible carrier tapes, two carrier tapes being assigned to each row of profile tubes lying one above the other.
  • Such a heat exchanger has become known, for example, from DE-A-37 26 058.
  • the individual profile tubes must be fixed in relation to one another with regard to their position in order to achieve constant intermediate distances, and on the other hand, the tube matrix consisting of the entirety of the profile tubes must be supported in a stationary manner.
  • the thermal stresses and thermal expansions caused by the high temperature differences have to be compensated and shock loads on the heat exchanger and the pipe vibrations caused thereby have to be absorbed and damped.
  • the spacing between the individual profile tubes is achieved in that the spacers are designed as wavy strips which are guided through the heat exchanger matrix in a zigzag shape with mutual profile tube encasing.
  • This arrangement enables the pipe spacing to be kept constant while at the same time damping shock and vibration loads.
  • a disadvantage of this arrangement is that the forces occurring during operation, that is to say the weight forces and also the impact forces, are supported by the fact that these are passed on via the walls of the individual profiled tubes.
  • This arrangement also has the disadvantage that the weight and in particular the impact forces are not only absorbed by the spacer strips, but are partly passed on to the adjacent profile tubes. With strong impact forces, this can lead to impermissible loads and thus deformation of the most heavily used profile tubes.
  • DE-C-928 716 relates to a heat exchanger in which the heat exchanger tubes are wrapped with wires in order to ensure that the tubes are spaced apart.
  • the wires do not have a supporting function, since the tube matrix is enclosed by a jacket without play, which absorbs the forces occurring during operation.
  • the object is achieved in that the carrier tapes run side by side, are widened at their ends and have holes through which handrails extending transversely to and outside the tube matrix are inserted.
  • This arrangement has the essential advantage that the profile tubes at the clamping point in the collector tube are considerably relieved. A part of the profile tube weights is taken up by the soldering or welding points in the collecting tube and the rest is introduced proportionately into the holding rods via the carrying straps.
  • the support of the flat strips on both sides outside the tube matrix enables shock forces to be absorbed from all directions, thus ensuring exact positioning of the tube matrix.
  • each profile tube although it hangs in the support straps, can change its length and position unhindered according to the thermal load.
  • the material of the flexible carrier tapes is metal. This enables the use of the heat exchanger at high operating temperatures and the manufacturing costs can be kept low.
  • other flexible materials for the carrier tapes are also conceivable, for example high-temperature-resistant plastics or fiber tapes provided with a highly elastic matrix.
  • each row of superimposed profile tubes is assigned two supporting tapes running next to one another, such that they enclose the profile tubes in a zigzag fashion so that they intersect between the profile tubes.
  • the profile tubes lying one above the other are held between the two clamping points of the support bands on both sides of the tube matrix, the distances between the profile tubes from one another being defined at the same time.
  • the distance between the laterally adjacent profile tubes is determined by the thickness of the carrier tapes.
  • the carrier tapes are preferably coated with friction-damping material in order to permit thermal expansions with the least possible wear on the components that are moved relative to one another. At the same time, this material preferably also has vibration-damping properties in order to dampen vibrations occurring during operation, caused by impacts or the gas flow.
  • the carrier tapes are preferably coated with a metal mesh or a ceramic mesh. It is sufficient if the two main surfaces in contact with the profile tubes are coated.
  • Another advantageous embodiment of the invention provides that the support rods are supported on a heat exchanger frame.
  • the handrails are easy to assemble and disassemble and ensure simple support of the tube matrix.
  • Spacers which correspond approximately to the width of the individual profiled tubes, are plugged onto the holding rods between two mutually associated supporting bands. This advantageously also effectively encloses the outer profile tubes with the support straps.
  • the carrier tapes are preferably designed as flat tapes, as a result of which large loads can be supported with a small profile tube spacing
  • the heat exchanger 1 shown in FIG. 1 has two collecting tubes 2a, 2b arranged in parallel, which are connected to one another via a U-shaped tube matrix 3.
  • the one heat-exchanging medium flows, for example, from the collecting pipe 2a via the individual profile tubes 4 of the pipe matrix 3 to the second collecting pipe 2b, while at the same time the second heat-exchanging medium is guided past the pipe matrix 3 in a cross / countercurrent in the direction indicated by 5.
  • Spacers 6 which are spaced apart at regular intervals and which consist of a plurality of support straps 7a, 7b arranged one behind the other are attached to the raw matrix 3, the support straps 7a, 7b being plugged onto retaining webs 8 at both ends.
  • the support rods 8 run transversely to the direction of the profile tubes 4 and are detachably attached to a heat exchanger frame, not shown, together with the header tubes 2a, 2b.
  • the heat exchanger 1 can either consist of a U-shaped tube matrix 3, as shown, or can also have two tube matrices of similar design at two opposite points of the header tubes 2a, 2b.
  • FIG. 2 The design of the carrying tapes 7a and 7b of the spacers 6 is shown in more detail in FIG. 2. It can be seen that holes 9 are provided at both ends of the carrying bands 7a, 7b, which correspond in diameter to the support rods 8 according to FIG. 1.
  • the carrier tapes 7a, 7b are, as shown in FIG. 2, attached opposite to each other so that they enclose the individual profile tubes 4 in opposite directions alternately and in a zigzag shape, as shown schematically in FIG. 1.
  • each profiled tube 4 is individually enclosed by two mutually associated carrier tapes 7a, 7b, the carrier tapes 7a, 7b crossing between the profiled tubes.
  • the straps 7a, 7b can be understood as a wattle, dei profile tube 4 serve as cross bars of the wattle.
  • the carrier tapes 7a, 7b are also coated on both sides with a friction and vibration-damping layer in the form of fabric layers 11a, 11b.
  • the two fabric layers 11a, 11b each make up 1/5 to 1/3 of the entire width 12 of the carrier tapes 7a, 7b.
  • FIG. 4 shows the wickerwork 13 which forms the spacer 6 and in which it can be seen how the carrying straps 7a, 7b are connected to the holding rod 8.
  • a spacer 15 is provided between the mutually associated support bands 7a, 7b, which are assigned to a row of profile tubes 4a lying one above the other, this spacer 14 being approximately the same Width as the associated profile tube 4a. This ensures that the uppermost profile tube 4a of each row is wrapped on both sides by the two associated support bands 7a and 7b.
  • the wattle 13 of course continues in both directions of the extension of the support rod 8, but this is not shown here for reasons of clarity.
  • FIG. 5 shows a cross section according to the view of FIG. 4, the widening of the carrying bands 7a, 7b being recognizable in the area of the encircling of the holding rod 8.
  • the carrier tapes 7a, 7b loop around the superposed profile tubes 4a in opposite directions, so that they cross each other in areas between the profile tubes 4a.

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)

Claims (9)

  1. Echangeur de chaleur comportant une matrice tubulaire formée d'un grand nombre de petits tubes profilés (4), disposés parallèlement, et qui sont maintenus comme tiges transversales dans un tressage (13) de bandes de support souples (7a, b), et à chaque rangée de petits tubes profilés (4), superposés sont associées deux bandes de support, échangeur caractérisé en ce que les bandes de support (7a, b) passent l'une à côté de l'autre et leur extrémité élargie comporte des trous (9) traversés par des tiges de fixation (8) dirigées transversalement à la matrice tubulaire et extérieurement à celle-ci.
  2. Echangeur de chaleur selon la revendication 1, caractérisé en ce que la matière des bandes de support souples (7a, b) est du métal.
  3. Echangeur de chaleur selon la revendication 1, caractérisé en ce qu'à chaque rangée de petits tubes profilés (4a) sont associées deux bandes de support (7a, b) juxtaposées, de façon que ces bandes entourent en zigzag les petits tubes profilés (4a) pour se croiser dans l'intervalle des tubes profilés (4a).
  4. Echangeur de chaleur selon la revendication 1, caractérisé en ce que les bandes de support (7a, b) sont revêtues d'une matière réduisant le frottement.
  5. Echangeur de chaleur selon la revendication 4, caractérisé en ce que les bandes de support (7a, b) sont revêtues d'une couche de tissu (11a, b) qui est un tissu métallique.
  6. Echangeur de chaleur selon la revendication 4, caractérisé en ce que les bandes de support (7a, b) sont revêtues d'une couche de tissu (11a, b) constituée par un tissu en céramique.
  7. Echangeur de chaleur selon la revendication 1, caractérisé en ce que les tiges de fixation (8) s'appuient sur un châssis d'échangeur.
  8. Echangeur de chaleur selon l'une des revendications précédentes, caractérisé en ce qu'entre chaque fois deux bandes de support associées (7a, b) les tiges de fixation (8) portent des organes d'écartement (14).
  9. Echangeur de chaleur selon l'une des revendications précédentes, caractérisé en ce que les bandes de support (7a, b) sont des bandes plates.
EP90102444A 1989-02-28 1990-02-08 Echangeur de chaleur à matrice tubulaire Expired - Lifetime EP0389759B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3906241A DE3906241A1 (de) 1989-02-28 1989-02-28 Waermetauscher mit einer rohrmatrix
DE3906241 1989-02-28

Publications (2)

Publication Number Publication Date
EP0389759A1 EP0389759A1 (fr) 1990-10-03
EP0389759B1 true EP0389759B1 (fr) 1993-05-26

Family

ID=6375121

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90102444A Expired - Lifetime EP0389759B1 (fr) 1989-02-28 1990-02-08 Echangeur de chaleur à matrice tubulaire

Country Status (3)

Country Link
US (1) US5033542A (fr)
EP (1) EP0389759B1 (fr)
DE (2) DE3906241A1 (fr)

Families Citing this family (21)

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DE4139104C1 (fr) * 1991-11-28 1993-05-27 Mtu Muenchen Gmbh
US5213155A (en) * 1992-04-23 1993-05-25 The Atlantic Group, Inc. Method and apparatus for multiple locking a single row of heat exchanger tubes
US5501181A (en) * 1994-09-08 1996-03-26 The Babcock & Wilcox Company Spiral furnace support tube strap
US6244330B1 (en) * 1998-11-16 2001-06-12 Foster Wheeler Corporation Anti-vibration ties for tube bundles and related method
GB0106308D0 (en) * 2001-03-14 2001-05-02 Kvaerner Process Tech Ltd Apparatus
US20030131976A1 (en) * 2002-01-11 2003-07-17 Krause Paul E. Gravity fed heat exchanger
DE10314400A1 (de) * 2003-03-28 2004-10-21 Pilkington Automotive Deutschland Gmbh Verfahren und Anlage zum Behandeln der Glasscheiben eines asymmetrischen Glasscheibenpaares
US20070114005A1 (en) * 2005-11-18 2007-05-24 Matthias Bronold Heat exchanger assembly for fuel cell and method of cooling outlet stream of fuel cell using the same
EP2188582A1 (fr) 2007-09-11 2010-05-26 Behr GmbH & Co. KG Echangeur thermique notamment pour un vehicule a moteur
JP5414704B2 (ja) * 2011-01-21 2014-02-12 株式会社椿本チエイン 多関節型ケーブル類保護案内装置
JP5079894B2 (ja) * 2011-02-15 2012-11-21 株式会社椿本チエイン 多関節型ケーブル類保護案内装置
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
US9777963B2 (en) 2014-06-30 2017-10-03 General Electric Company Method and system for radial tubular heat exchangers
US10006369B2 (en) 2014-06-30 2018-06-26 General Electric Company Method and system for radial tubular duct heat exchangers
US9835380B2 (en) 2015-03-13 2017-12-05 General Electric Company Tube in cross-flow conduit heat exchanger
US10184400B2 (en) * 2016-01-08 2019-01-22 General Electric Company Methods of cooling a fluid using an annular heat exchanger
US10378835B2 (en) 2016-03-25 2019-08-13 Unison Industries, Llc Heat exchanger with non-orthogonal perforations
US10670349B2 (en) * 2017-07-18 2020-06-02 General Electric Company Additively manufactured heat exchanger
US11859910B2 (en) * 2021-05-14 2024-01-02 Rtx Corporation Heat exchanger tube support
US11892250B2 (en) * 2021-05-14 2024-02-06 Rtx Corporation Heat exchanger tube support
CN115682798B (zh) 2023-01-03 2023-04-14 山东省科学院能源研究所 一种错位交叉储热吸附床及海水淡化余热储热系统

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JPS57104096A (en) * 1980-12-18 1982-06-28 Mitsubishi Heavy Ind Ltd Vibration suppressing structure for tube group
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Also Published As

Publication number Publication date
US5033542A (en) 1991-07-23
DE59001531D1 (de) 1993-07-01
DE3906241C2 (fr) 1992-06-17
DE3906241A1 (de) 1990-08-30
EP0389759A1 (fr) 1990-10-03

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