EP0313038A1 - Méthode pour la fabrication d'une plaque tubulaire d'un échangeur de chaleur - Google Patents

Méthode pour la fabrication d'une plaque tubulaire d'un échangeur de chaleur Download PDF

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Publication number
EP0313038A1
EP0313038A1 EP88117464A EP88117464A EP0313038A1 EP 0313038 A1 EP0313038 A1 EP 0313038A1 EP 88117464 A EP88117464 A EP 88117464A EP 88117464 A EP88117464 A EP 88117464A EP 0313038 A1 EP0313038 A1 EP 0313038A1
Authority
EP
European Patent Office
Prior art keywords
tube
metallic
fibers
profile
matrix
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.)
Granted
Application number
EP88117464A
Other languages
German (de)
English (en)
Other versions
EP0313038B1 (fr
Inventor
Klaus Hagemeister
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 GmbH
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 EP0313038A1 publication Critical patent/EP0313038A1/fr
Application granted granted Critical
Publication of EP0313038B1 publication Critical patent/EP0313038B1/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
    • 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
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0221—Header boxes or end plates formed by stacked elements
    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/0243—Header boxes having a circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/02—Streamline-shaped elements
    • 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
    • Y10S165/454—Heat exchange having side-by-side conduits structure or conduit section
    • Y10S165/471—Plural parallel conduits joined by manifold
    • Y10S165/481—Partitions in manifold define serial flow pattern for conduits/conduit groups
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49366—Sheet joined to sheet
    • Y10T29/49368—Sheet joined to sheet with inserted tubes

Definitions

  • the invention relates to a method for producing a tube sheet structure of a heat exchanger according to the preamble of patent claim 1.
  • the tube sheet is to be composed of a large number of precisely pre-shaped or pre-profiled elements; According to the number and the desired spacing of the profile tubes of the matrix, the relevant layer-to-layer elements should be pre-deformed in such a way that they can enclose half of the arranged tube ends of the matrix in a form-fitting manner.
  • the invention is based on the object of specifying a method in which the tube ends of a profile tube matrix of a heat exchanger can be optimally integrally bonded into a floor or distributor tube structure which is to be created essentially free of predetermined solid component specifications.
  • the rings forming the central tube plate are not made from solid material - as already known - but from a fiber mesh.
  • the fiber mesh is, according to the invention, under the effect of axial joining forces compressed in such a way that it completely nestles around the enclosed heat exchanger tubes.
  • the compression of the fiber structure is locally the strongest where the surfaces of adjacent pipes are at the smallest distance from each other in the joining area of the heat exchanger pipe field.
  • Metallic material (metal matrix) is then infiltrated into this initially porous structure of the central tube sheet, which fills the cavities of the fiber structure and also creates a material connection to the surfaces of the enclosed tubes and the fibers of the wickerwork.
  • the formation of the fiber rings can be designed in detail as follows.
  • Orientation of a certain proportion of fibers in the circumferential direction is desirable in order to absorb the high circumferential forces during operation of the heat exchanger which result from the internal pressure load on the central tube with the relevant heat exchanger base.
  • Another part of the fiber structure should protrude like bristles from the side surfaces of said fiber ring. When they are joined together, these bristle structures of adjacent rings penetrate and, after the metallic matrix has infiltrated, transmit the forces in the longitudinal direction of the central tube; the bristle structures also ensure that the areas that are least compressed during assembly, in particular at the leading and trailing edges of the heat exchanger tubes, are filled correctly and with a sufficient volume of the fiber material.
  • the fiber material should preferably be heat-resistant in accordance with the temperature load on the component, but not un conditionally resistant to oxidation and corrosion. The latter is not the case if the fibers are completely enclosed by the system of the matrix, so that they are protected against the entry of aggressive media. So metallic, but also ceramic and carbon fibers come into question.
  • the fiber rings For assembling the heat exchanger, it can further be advantageous according to the invention to enclose the fiber rings with solid rings.
  • the width of these rings corresponds to the closest local distances of the heat exchanger tubes in the field, so that the rings can ensure the required distances when they are joined or pressed together. Since they have to follow the corrugated track of the tube field in the circumferential direction, it is necessary to make them correspondingly flexible or to impress the corrugated shape on the rings before joining.
  • Pipes of the matrix and fibers or fiber braiding can be subjected to a surface pretreatment in all cases in order to achieve improved wetting and integration into the matrix.
  • Fig. 1 illustrates a heat exchanger 1 for guiding gases of very different temperatures
  • the cross-countercurrent matrix 2 in the hot gas stream G consists of separate compressed air lines 3 (Fig. 2), which on the one hand to a first stationary pipe guide 4 for the supply of cold compressed air D in the matrix 2 (cold) and on the other hand connected to a second stationary pipe guide 5, from which the compressed air D (hot) heated via the matrix 2 can be fed to a consumer.
  • the two pipe guides 4, 5 are arranged separately from one another and integrated in a common header pipe 6.
  • Each profile tube 3 of the matrix 2 - starting from its tube-side connections to the first 4 and second tube guide 5 of the header tube 6 - should initially run parallel to a laterally extended header tube meridian plane before it turns into a common, U deflecting the compressed air D by 180 ° -shaped wiring harness merges.
  • the matrix 2 should also flow through the hot gas G transversely to the extended manifold meridian plane and while ensuring the permissible hot gas blockage between the adjacent profile tubes 3.
  • the profiled tubes 3 of the matrix lying on the upstream and downstream sides in the hot gas flow direction G with streamlined pointed ends have a lenticular cross section; the profile tubes 3, each running parallel to a common matrix transverse plane, engage with one another on the upstream and downstream sides of the profile tapering, utilizing the expansions which form as a result of these tapering; each profile tube 3 of the matrix 2 (FIG. 2) further contains two compressed air channels 8, 9 separated from one another by a profile web 7, which have triangular flow cross sections in the sense of the two tapered outer wall sections of the profile tubes 3 concerned.
  • two or more separate manifolds or manifolds for the compressed air supply into the matrix can also be used instead of the common manifold 6, essentially arranged one above the other or next to one another 2 or for the compressed air discharge (hot) from the matrix 2.
  • the invention therefore relates to the manufacture of the relevant floor structure 10, but in particular to the manufacture of the header pipe 6 together with the floor structure 10 or the manufacture of one or more header or distributor pipes in a heat exchanger of the cross-countercurrent construction discussed at the beginning.
  • a method for producing a tube sheet structure 10 or a header tube 6 of a heat exchanger using strip-shaped layers 11, 12 or 12, 13 (FIG. 5) is thus specified, between which tube ends of the profile tubes 3 of the matrix 2 are firmly integrated in a fluid-tight manner; the stripe-shaped layers 11, 12; 12, 13 are to be made from fibers which are initially bundled uniformly (fiber bundles 11 ′, 12 ′; 12 ′, 13 ′) between the tube ends of adjacent rows of profile tubes (tubes 3) and are thus deformed under pressure (arrow direction P, P ′) They should form an initially porous floor structure (Fig. 5) under half-sided pipe wrapping, into which a metallic material is then infiltrated, in which all fibers including the pipe ends are integrally bonded.
  • the fiber bundle, for example 12 ', of interwoven fiber layers with the main fibers 14 extending in the circumferential direction of the tube sheet structure and transverse to it ver running secondary fibers 15 are assembled so that the latter - after completion of the pressing and deformation phase (Fig. 5) - engage in a bristle-like manner substantially outside the pipe transfer areas.
  • the secondary fibers 15 of the adjacent fiber layers e.g. 12, 13, intertwine like bristles.
  • a complete interweaving of fibers should also be achieved in the respective profile end or tip areas.
  • Said contact planes 16 are aligned longitudinally symmetrically with respect to the profile longitudinal center planes E.
  • the fiber bundles e.g. 12 ', 13' (Fig. 3) formed layers, e.g. 12, 13 (FIG. 5) are covered entirely or partially by metallic ring elements 17, 18 (FIG. 7) or 18, 19 (FIG. 8) extending along the inside and / or outside of the floor structure.
  • the ring elements mentioned can e.g. be provided to stiffen the floor or pipe structure and to protect the fiber structures from local environmental influences, such as temperature influences.
  • the ring elements mentioned can also be aids in the infiltration process in that they are intended to prevent the infiltration agent from flowing off. If, for example, the infiltration process of a molten metallic material takes place from the outside of a tube sheet into the fiber material, the relevant ring elements, for example 19 (FIG. 8), can only be arranged on the inside of the tube sheet in order to prevent the metallic material from flowing off. After infiltration has been completed, the ring elements, for example 19 (FIG. 8), can then be removed again.
  • the metallic ring elements e.g. 18, 19 (FIG. 8) are produced from a solder material which ensures metallic infiltration.
  • the ring elements, e.g. 18,19 (Fig. 8) on the inside and outside of the porous tube sheet structure as corrugated elements in the sense of the profile tube course (Fig. 7) are placed on the fiber bundle 12 '(Fig. 8).
  • a metallic composite material (matrix) can be lance-like within a vacuum furnace via a porous floor structure (FIG. 5) that sweeps the undulated deformed structure cast dishes are molten injected along the inside and outside of the tube sheet.
  • the ends of the profile tubes 3 of the matrix which are open on the inside of the tube sheet can be closed before metallic infiltration is carried out from the inside of the base structure and can be opened again by mechanical processing after the infiltration has been completed.
  • the fibers of the fiber bundles 11 ', 12' and 12 ', 13' can be made of a metallic material or of wires, made of a ceramic material, e.g. be made of partially stabilized zirconium oxide or carbon.
  • the metallic material infiltrated after the pressing and deformation phase can be made from an aluminum alloy.
  • a circular cylindrical (FIG. 1, 6 or 8), square or rectangular header or distributor pipe of a cross-countercurrent heat exchanger can be used with the collector or distributor pipes, for example 6-Fig. 1, U-shaped cantilever profile tube matrix 2 are produced, the fiber bundles 11 ', 12' and 12 ', 13' (Fig. 3) to the desired header or manifold length dimension including the required mutual profile tube spacing of the matrix 2 are compressed and wherein the metallic infiltration can be carried out continuously over the entire circumference of the porous collecting or distribution pipe structure (FIG. 5), for example by means of the aforementioned crockery.
  • rings made of a suitable plastic e.g. can be provided from a fiber-reinforced plastic or from a suitable ceramic material.

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)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
EP88117464A 1987-10-23 1988-10-20 Méthode pour la fabrication d'une plaque tubulaire d'un échangeur de chaleur Expired - Lifetime EP0313038B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3735846 1987-10-23
DE19873735846 DE3735846A1 (de) 1987-10-23 1987-10-23 Verfahren zur herstellung einer rohrbodenstruktur eines waermetauschers

Publications (2)

Publication Number Publication Date
EP0313038A1 true EP0313038A1 (fr) 1989-04-26
EP0313038B1 EP0313038B1 (fr) 1990-12-27

Family

ID=6338896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88117464A Expired - Lifetime EP0313038B1 (fr) 1987-10-23 1988-10-20 Méthode pour la fabrication d'une plaque tubulaire d'un échangeur de chaleur

Country Status (5)

Country Link
US (1) US4893674A (fr)
EP (1) EP0313038B1 (fr)
JP (1) JPH01147295A (fr)
DE (2) DE3735846A1 (fr)
ES (1) ES2019682B3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0396132A1 (fr) * 1989-05-05 1990-11-07 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Echangeur ayant au moins deux collecteurs
FR2707381A1 (fr) * 1993-07-06 1995-01-13 Mtu Muenchen Gmbh Structure de refroidissement et procédé pour sa fabrication.

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5177865A (en) * 1989-05-05 1993-01-12 Mtu Motoren-Und Turbinen-Union Method for making heat exchanger having at least two collecting pipes
US5269276A (en) * 1992-09-28 1993-12-14 Ford Motor Company Internal combustion engine fuel supply system
CN1228591C (zh) * 2002-07-12 2005-11-23 株式会社电装 用于冷却空气的制冷剂循环***
US7117680B2 (en) * 2004-04-22 2006-10-10 United Technologies Corporation Cooling scheme for scramjet variable geometry hardware
DE102006021436A1 (de) * 2006-05-09 2007-11-15 Mtu Aero Engines Gmbh Gasturbinentriebwerk
DE102010025587A1 (de) * 2010-06-29 2011-12-29 Mtu Aero Engines Gmbh Gasturbine mit Profilwärmetauscher
DE102010025998A1 (de) * 2010-07-03 2012-03-29 Mtu Aero Engines Gmbh Profilwärmetauscher und Gasturbine mit Profilwärmetauscher
US10190828B2 (en) * 2015-10-22 2019-01-29 Hamilton Sundstrand Corporation Heat exchangers
US11092384B2 (en) * 2016-01-14 2021-08-17 Hamilton Sundstrand Corporation Thermal stress relief for heat sinks
US11892250B2 (en) * 2021-05-14 2024-02-06 Rtx Corporation Heat exchanger tube support
US11859910B2 (en) 2021-05-14 2024-01-02 Rtx Corporation Heat exchanger tube support

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2026088A1 (en) * 1968-12-13 1970-09-11 Dunlop Co Ltd Metallic foam heat transfer element
US3825063A (en) * 1970-01-16 1974-07-23 K Cowans Heat exchanger and method for making the same
FR2337867A1 (fr) * 1976-01-12 1977-08-05 Chausson Usines Sa Echangeur de chaleur a collecteurs epais
EP0186130A2 (fr) * 1984-12-22 1986-07-02 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Procédé pour la fabrication d'éléments annulaires pour des structures cylindriques des tuyaux collecteurs d'échangeurs thermiques

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2907810C2 (de) * 1979-02-28 1985-07-04 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Wärmetauscher zur Führung von Gasen stark unterschiedlicher Temperaturen
DE3310061A1 (de) * 1982-11-19 1984-05-24 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Verfahren zur herstellung einer rohrverteileranordnung sowie ein nach diesem verfahren gefertigter waermetauscher-sammelbehaelter
US4512069A (en) * 1983-02-04 1985-04-23 Motoren-Und Turbinen-Union Munchen Gmbh Method of manufacturing hollow flow profiles
DE3329202A1 (de) * 1983-08-12 1985-02-21 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Profilrohr-waermetauscher
DE3543893A1 (de) * 1985-12-12 1987-06-25 Mtu Muenchen Gmbh Waermetauscher
DE3635548C1 (de) * 1986-10-20 1988-03-03 Mtu Muenchen Gmbh Waermetauscher

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2026088A1 (en) * 1968-12-13 1970-09-11 Dunlop Co Ltd Metallic foam heat transfer element
US3825063A (en) * 1970-01-16 1974-07-23 K Cowans Heat exchanger and method for making the same
FR2337867A1 (fr) * 1976-01-12 1977-08-05 Chausson Usines Sa Echangeur de chaleur a collecteurs epais
EP0186130A2 (fr) * 1984-12-22 1986-07-02 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Procédé pour la fabrication d'éléments annulaires pour des structures cylindriques des tuyaux collecteurs d'échangeurs thermiques

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 8, Nr. 174 (M-316)[1611], 10. August 1984; & JP-A-59 66 623 (DAIWA HOUSE KOGYO K.K.) 16-04-1984 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0396132A1 (fr) * 1989-05-05 1990-11-07 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Echangeur ayant au moins deux collecteurs
US5103559A (en) * 1989-05-05 1992-04-14 Mtu Motoren- Und Turbinen-Union Munchen Gmbh Method for making heat exchanger having at least two collecting pipes
FR2707381A1 (fr) * 1993-07-06 1995-01-13 Mtu Muenchen Gmbh Structure de refroidissement et procédé pour sa fabrication.

Also Published As

Publication number Publication date
DE3861453D1 (de) 1991-02-07
JPH01147295A (ja) 1989-06-08
ES2019682B3 (es) 1991-07-01
DE3735846A1 (de) 1989-05-03
US4893674A (en) 1990-01-16
EP0313038B1 (fr) 1990-12-27

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