EP0391266B1 - Wärmetauscher - Google Patents

Wärmetauscher Download PDF

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Publication number
EP0391266B1
EP0391266B1 EP90106097A EP90106097A EP0391266B1 EP 0391266 B1 EP0391266 B1 EP 0391266B1 EP 90106097 A EP90106097 A EP 90106097A EP 90106097 A EP90106097 A EP 90106097A EP 0391266 B1 EP0391266 B1 EP 0391266B1
Authority
EP
European Patent Office
Prior art keywords
pipes
heat exchanger
collector
exchanger according
support
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
EP90106097A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0391266A1 (de
Inventor
Karl Maier
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 EP0391266A1 publication Critical patent/EP0391266A1/de
Application granted granted Critical
Publication of EP0391266B1 publication Critical patent/EP0391266B1/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
    • 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
    • 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

Definitions

  • header tubes which have at least one closed tube plate and whose axial bearings are arranged at a greater distance from this plate, are loaded by an axial force acting on the tube plate as a result of the internal pressure will. This leads to a further major influence on the strength in the perforated pipe cross section.
  • the support tubes advantageously have a round or oval cross section, wherein when using an oval cross section, the tubes are aligned with their greater bending moment of resistance in the direction of the expected load. It is also conceivable to make one of the two support tubes oval, to make the other round or to use other cross-sectional shapes, for example squares or rectangles.
  • the support tubes are preferably arranged on both sides of the header tubes in such a way that the longitudinal axes of all tubes lie in one plane (axis plane). This has the advantage that the heat exchanger can be suspended with manifolds arranged horizontally one above the other in such a way that it can be acted upon by hot gas flowing vertically on the outside. The weight forces of the heat exchanger are absorbed by the support tubes arranged above and below, the greatest rigidity of the support frame being used in the vertical direction.
  • surrounding guide sleeves are provided at the joints of adjacent header sections, which are fixedly connected to the support beams and to which means for fixing one of the two header sections are attached.
  • the guide sleeves serve on the one hand for axially guiding the header sections during thermal movements, and also for receiving and fixing the sealing elements provided between the individual header sections.
  • the guide sleeves can be welded or screwed to the support beams and are made as short as possible to save weight.
  • the center for fixing the header sections is preferably designed as a tongue and groove element, which ensures easy interchangeability.
  • connecting pieces for coupling the manifolds to inflow and outflow lines are attached in the middle of the manifolds. It is possible to provide only one connecting piece on each manifold, or to attach two connecting pieces that are opposite each other with respect to the collecting pipes.
  • the advantage of this arrangement lies in the favorable flow through the collecting tubes, since half of the flow medium must flow in each direction, and the flow losses which inevitably result along the length of the collecting tube are reduced. There is also a more even flow through the profile tubes guaranteed as compared to a feed of the gas at only one axial header pipe end. The same advantages result if the connecting pieces are attached to both axial ends of each header pipe.
  • the heat exchanger 1 shown in FIG. 1 essentially consists of two header pipes 2a, 2b, which are connected to one another in terms of flow via two U-shaped profile tube bundles 3.
  • a gas flows from the manifold 2a via the two profile tube bundles 3 to the manifold 2b and heats up as a result, hot gas being simultaneously passed outside in cross / counterflow on the outside of the profile tube bundles 3 in the direction denoted by 4.
  • the collecting tubes 2a, 2b Provided on both sides of the collecting tubes 2a, 2b are two supporting tubes 5, 6 which run parallel to the collecting tubes 2a, 2b and which are connected via supporting beams 7.
  • the support tubes 5 and 6 have mounting flanges 8a, 8b, by means of which these are attached to the support beams 7.
  • transverse stiffening plates 9 are provided which extend perpendicular to the plane of the sheet.
  • the support pipes 5 and 6 likewise consist of individual sections, the support pipe sections 12, 13, which have approximately the same length as the header pipe sections 10, 11. In contrast to the header pipe sections 10, 11, however, the interior spaces of the support pipe sections 12, 13 do not have to be connected to one another, that is to say that the support beams 7 have no corresponding recesses. However, this would be conceivable for the purpose of saving weight.
  • Fastening flanges 8a, 8b are welded onto the support tube sections 12, 13, preferably axially, by means of which the support tube sections 12, 13 are attached to the support beams 7 via fastening elements 14.
  • the support tubes 5, 6, the support brackets 7 and the transverse stiffening plates 9 together form the support frame, which serves to support the heat exchanger 1 and is supported in a stationary manner by fastening devices (not shown).
  • the manifolds 2a, 2b are provided at one end with connecting pieces 17a, b for the supply or discharge of heat-exchanging gas, and at the other end there is one each in the axially last manifold section 10,11 Welded tube sheet 18a, b, which is supported in an adapted end piece 19, the end pieces 19 being fastened in the first support beam 7.
  • header sections 10 do not directly meet one another, but instead have a certain gap in which an axially elastic metal bellows seal 23 is provided.
  • stiffening plates 9 attached between the individual support beams 7 are shown in more detail. These have a number of recesses 24 to reduce weight, and have ribs 25 for increasing the resistance to buckling - as better shown in FIG. 1 - to form a profile which is H-shaped in cross section.
  • the transverse reinforcement plates 9 are detachably attached to the support beams by means of screws 26.
  • FIG. 6 an alternative embodiment of a support beam 7 is shown, which is designed as a cast part.
  • the connecting pieces 17c, 17d in contrast to the designs shown in the previous figures, are not arranged at an axial end of the header pipes 2a, 2b, but in the axial center thereof, being guided outwards perpendicular to the header pipe axial direction .
  • the ring-like spring element 21 is also shown, by means of which the collecting tube 2b is fastened to the support bracket 7 via the screw connections 20.

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)
  • Transformer Cooling (AREA)
EP90106097A 1989-04-07 1990-03-30 Wärmetauscher Expired - Lifetime EP0391266B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3911257 1989-04-07
DE3911257A DE3911257C2 (de) 1989-04-07 1989-04-07 Wärmetauscher

Publications (2)

Publication Number Publication Date
EP0391266A1 EP0391266A1 (de) 1990-10-10
EP0391266B1 true EP0391266B1 (de) 1993-02-10

Family

ID=6378058

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90106097A Expired - Lifetime EP0391266B1 (de) 1989-04-07 1990-03-30 Wärmetauscher

Country Status (5)

Country Link
US (1) US4986344A (es)
EP (1) EP0391266B1 (es)
JP (1) JP2776952B2 (es)
DE (2) DE3911257C2 (es)
ES (1) ES2038460T3 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4118777C2 (de) * 1991-06-07 2002-04-18 Mtu Aero Engines Gmbh Gasturbinentriebwerk mit Wärmetauscher
DE10236380A1 (de) * 2002-08-08 2004-03-04 Mtu Aero Engines Gmbh Rekuperativ-Abgaswärmetauscher für ein Gasturbinentriebwerk
US20100230081A1 (en) * 2008-01-09 2010-09-16 International Mezzo Technologies, Inc. Corrugated Micro Tube Heat Exchanger
US8177932B2 (en) * 2009-02-27 2012-05-15 International Mezzo Technologies, Inc. Method for manufacturing a micro tube heat exchanger
JP5651991B2 (ja) 2010-05-10 2015-01-14 富士通株式会社 ラジエータ及びそれを備えた電子機器
CN105180681B (zh) * 2015-11-05 2017-02-01 洛阳隆华传热节能股份有限公司 一种可拆卸管束烟道式集热设备及方法
US11092384B2 (en) * 2016-01-14 2021-08-17 Hamilton Sundstrand Corporation Thermal stress relief for heat sinks

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE21270E (en) * 1939-11-21 Heat exchange device
US498699A (en) * 1893-05-30 Steam-generator
US798684A (en) * 1904-10-15 1905-09-05 John Jay Le Duc Steam-boiler furnace.
FR31297E (fr) * 1925-10-31 1927-01-27 Faisceau tubulaire pour chaudière
US1893135A (en) * 1930-08-11 1933-01-03 Cherry Burrell Corp Heat exchange device
US2078361A (en) * 1934-04-02 1937-04-27 Duro Co Water softener
US2055200A (en) * 1935-05-07 1936-09-22 Karmazin Engineering Company Refrigerating apparatus
DE3803948A1 (de) * 1988-02-10 1989-08-24 Mtu Muenchen Gmbh Waermetauscher
DE3803947A1 (de) * 1988-02-10 1989-08-24 Mtu Muenchen Gmbh Waermetauscher

Also Published As

Publication number Publication date
DE3911257A1 (de) 1990-10-11
US4986344A (en) 1991-01-22
DE3911257C2 (de) 1994-05-26
JP2776952B2 (ja) 1998-07-16
DE59000864D1 (de) 1993-03-25
JPH02287093A (ja) 1990-11-27
EP0391266A1 (de) 1990-10-10
ES2038460T3 (es) 1993-07-16

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