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EP1488185A1 - Echangeur de chaleur - Google Patents

Echangeur de chaleur

Info

Publication number
EP1488185A1
EP1488185A1 EP03729917A EP03729917A EP1488185A1 EP 1488185 A1 EP1488185 A1 EP 1488185A1 EP 03729917 A EP03729917 A EP 03729917A EP 03729917 A EP03729917 A EP 03729917A EP 1488185 A1 EP1488185 A1 EP 1488185A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
exchanger according
chamber
ring
elements
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
EP03729917A
Other languages
German (de)
English (en)
Other versions
EP1488185B1 (fr
Inventor
Georg Kämmler
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP1488185A1 publication Critical patent/EP1488185A1/fr
Application granted granted Critical
Publication of EP1488185B1 publication Critical patent/EP1488185B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F28F9/02—Header boxes; End plates
    • F28F9/0236—Header boxes; End plates floating elements
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2230/00—Sealing means

Definitions

  • the invention relates to a heat exchanger with at least one tube through which a first medium can flow and which is connected at a first end region to a first end element and at its second end region to a second end element.
  • a heat exchanger is particularly suitable for use as an exhaust gas heat exchanger, but also for cooling other media.
  • Exhaust gas heat exchangers have become known, for example, from DE 196 54 368.
  • exhaust gas heat exchangers according to DE 196 54 368 exhaust gas flows through a plurality of tubes. These pipes are surrounded by a pipe jacket through which a coolant flows to cool the exhaust gas.
  • an exhaust gas heat exchanger has become known in which a plurality of inner tubes are connected to tube sheets and an outer jacket is connected to them, a coolant being able to flow between the outer jacket and the first tubes.
  • Such heat exchangers have the disadvantage that, given the temperature differences between the exhaust gas flowing through the inner tubes and the coolant temperature, the inner tubes exhibit a substantially greater thermal expansion than the outer tube, so that the thermal cycles caused by heating and cooling of the heat exchanger lead to cracks in the Tube sheets comes.
  • the object of the invention is to improve exhaust gas heat exchangers according to the prior art in such a way that the heat exchangers are simple and inexpensive to produce and yet there are no cracks over a longer operating time due to different thermal expansions of the inner tubes and the outer jacket.
  • this is achieved in an above-mentioned heat exchanger by connecting a first or a second pipe part or a pipe-like part to the first and the second terminating element, the two pipe parts running radially into one another at least over a partial area of their axial extent and with at least one sealing element in the space between the pipe parts.
  • At least one chamber is formed between the first tube part and the second tube part. Between means advantageously in the space between the two pipe parts. This can refer to the radial alignment as well as the axial alignment. This chamber expediently serves to accommodate a sealing element. It is also particularly expedient if the at least one chamber is formed by the first tube part and the second tube part.
  • the loading boundary of the chamber given by the inner or outer wall of the tube parts and at least one ring-like element.
  • the at least one chamber has at least two essentially ring-like, radially protruding elements which are spaced apart in the axial direction.
  • a chamber can thereby be defined, which is preferably of annular design.
  • the chamber can also be divisible in the circumferential direction by the inclusion or formation of axial webs in ring segments.
  • At least one radially projecting element is an integral part of one of the tube parts. It can also be advantageous here if a plurality of ring-like parts is provided, where these are then optionally also connected to a tube part.
  • the ring-like protruding elements are formed in one piece with one and / or other tube part.
  • At least one ring-like protruding element is an additional component which is arranged between the one and the other tube part and is optionally connected to the one or the other tube part.
  • Chamber is at least substantially sealed by the ring-like elements. In another embodiment, it is advantageous if the chamber is essentially not sealed by the ring-like elements. Furthermore, it is expedient if the ring-like protruding elements serve as a support for the tubular parts, viewed in the radial direction. This can advantageously be achieved that the pipe parts do not tilt against each other. It is also expedient if the elements which protrude in the manner of a ring serve as axial bearings. As a result, the two pipe parts can at least slightly shift or move relative to one another, which can be caused by the thermal expansion in the case of temperature differences.
  • the chamber is at least partially filled with an elastic means. Furthermore, it is expedient if the chamber is filled in such a way that a ring-like element is formed from the elastic medium in the chamber, which extends between the radially inner and the radially outer tube part. This ring-like element can only be created by filling the medium into a chamber.
  • the elastic element can be inserted into a chamber as a ring element.
  • the elastic element can be introduced into the chamber as a pasty or gel-like medium.
  • the plurality of tubes are each connected to a first end element at their first end region and are connected to the second end element at their second end region. Furthermore, it is expedient if the at least one tube through which a first medium flows is connected at least at one end region to a connecting element for supplying and / or discharging a first medium.
  • At least one closure element is connected to at least one connection element for supply and / or discharge from a first medium.
  • tubular parts connected to the respective end elements form an essentially dense spatial area with elastic means provided in the chamber, at least two connecting elements being provided and a second medium through which the connecting elements can flow.
  • FIG. 2a shows a partial view of a heat exchanger
  • FIG. 2b shows a partial view of a heat exchanger
  • 3b is a partial section through a heat exchanger
  • FIG. 4b shows a partial section through a heat exchanger
  • FIG. 5 shows a partial section through a heat exchanger.
  • 1 shows a heat exchanger at least partially, a plurality of tubes 2 through which a first medium can flow being provided.
  • these tubes are arranged in rows, several rows of tubes in turn being arranged next to one another.
  • the tubes 2 are preferably made of metal, such as aluminum or stainless steel. However, the tubes can also be made of another material that is suitable to ensure heat transfer from the medium flowing through the tube to another medium. Depending on the application, these tubes can also be made of plastic, for example.
  • the tubes 2 have a first end region 2a and a second end region 2b, which are each arranged at their two axial end regions.
  • the tubes are each connected to a first end element 3 or a second end element 4 with these end regions.
  • the end elements advantageously have flat areas into which windows are inserted.
  • the end elements are so with the
  • a jacket 5 is arranged around the pipes 2, but this can only be seen in part in FIG. 1.
  • connection elements 6, 7 are provided, through which a second medium can flow, in such a way that the medium according to arrow 8 moves into or around the space region. can flow between the tubes 2 and can continue to flow in this area according to the arrows 9 before it can flow out through the connection 7 according to arrow 10.
  • connection elements are provided on the end elements 3 and 4, which serve to direct the first medium flowing through the pipes 2 to the heat exchanger or to derive it from the latter.
  • these connection elements are also not shown in FIG. 1.
  • FIGS. 2a and 2b each show parts of a heat exchanger 100, the central tube-fin block 101 not being shown completely. In this regard, however, reference is made to FIG. 1 by way of example.
  • FIG. 2a shows a connection element 110 which has two connection pieces 111 and 112.
  • a first medium such as an exhaust gas in the case of an exhaust gas heat exchanger, flows into or out of the heat exchanger through these connection pieces 111 and 112, depending on the arrangement of the heat exchanger in the flow of the first medium.
  • connection element 110 is connected to the termination element 120, the termination element being connected to the tubes 101 as already explained in accordance with FIG. 1.
  • the first tube part 130 is expediently connected to the end element 120 in a sealed manner.
  • the first tube part 130 has an opening through which the second medium can flow into the heat exchanger or out of the heat exchanger.
  • a connecting element such as pipe socket 140, is expediently connected to the second pipe part 131.
  • the components are made of stainless steel, it is expedient if connections are made by welding processes.
  • connection element 110 can be connected to the end element 120 or the pipe socket 140 to the first pipe part 130 by means of the weld seams 121 or 132.
  • the first tube part 130 can advantageously be designed as a round tube or as an angular tube.
  • the choice of the geometry of the first tube part viewed in cross section advantageously depends on the arrangement of the tubes 101 in the interior of the first tube part.
  • the second pipe part 131 can assume a corresponding geometry.
  • the second tube part 131 is designed such that it is at one
  • the pipe part 131 expediently has an opening for the inflow or outflow of the second medium.
  • connection element 115 which has a pipe socket 116 for the inflow or outflow of the first medium, is also connected to the closure element 122.
  • the axial dimension of the first tubular part and the axial dimension of the second tubular part are such that part of the first tubular part is arranged radially outside a part of the second tubular part over a part of the axial extent of the heat exchanger , Thus, in this partial area of their axial extension, the two tube parts are arranged to run radially into one another.
  • a sealing element 150 Extend radially into one another, a sealing element 150 is provided.
  • This sealing element 150 is designed in such a way that the two tube parts 130 and 131 can be moved at least slightly relative to one another in the axial direction and yet the space area is sealed radially inside the tube parts by the seal.
  • first tube part 130 or the second tube part 131 has elements which protrude in the radial direction and are designed such that relative tilting of the two tube parts to one another is prevented as far as possible.
  • the elements protruding in the radial direction such as rings 160 and 161 are advantageously dimensioned in such a way that they touch or almost touch the other tube part and are, if appropriate, sealing or not sealing.
  • FIG. 3a shows this again in detail.
  • the tube part 130 is expediently provided by a weld seam 201 with the end element 120 along the circumference of the end element and tube part sealingly connected.
  • the connecting piece 140 is also connected to the pipe part 130.
  • the first tubular part 130 is radially outside the second tubular part 131.
  • this can also be interchanged.
  • a chamber 170 is formed between the first and the second pipe part.
  • a sealing element is advantageously introduced within the chamber 170.
  • At least only one element projecting in the radial direction is provided or that a plurality of such elements, for example three or more, are provided, so that, for example, several chambers or Space areas are formed, which are arranged between the first and the second pipe part.
  • the elements 160 and 161 are advantageously designed as ring-like elements which protrude in the radial direction.
  • these ring-like elements are an integral part of one or the other tube part with which sen are connected or arranged as extra components between these pipe parts.
  • the elements protruding in the radial direction serve on the one hand to define a chamber and on the other hand can be used in the radial direction
  • Pipe parts are limited to each other or reduced.
  • a sealing element can be introduced into the chamber 170.
  • This element can be designed as an elastic element, such as an elastomer, silicone or another material.
  • the elastic element can be introduced as a prefabricated ring-like element in this spatial area or, according to a further exemplary embodiment of the invention, can also be filled in at a later point in time after the assembly of the two tube parts through openings made in the radially outer tube part.
  • a filling process can take place, for example, by injection. It may well be expedient if at least one, but advantageously also a plurality of openings are provided on the outer circumference of the radially outer tube part, through which the elastic means is introduced into the spatial area.
  • the chamber 170 is not completely filled by the elastic means, but is only partially filled by it. This may have the advantage that the elastic medium due to the axial displacement of the two
  • Pipe parts 130 and 131 are not destroyed by shear forces.
  • the elastic means can expediently be introduced in such a way that the elastic means can be introduced into the chamber as a pasty or gel-like medium.
  • the means can also be arranged such that the means is arranged as a prefabricated element. It can preferably be prefabricated and arranged as an annular element.
  • FIG. 4a shows a modification of the arrangement of the elastic element according to the preceding figures, the end regions of the chamber being formed by ends of the tube parts 201, 202 projecting radially inwards and outwards, and thereby the elastic element 203 between these projections advantageously rotate radially, can be brought under axial preload.
  • the elastic element can also be joined or arranged between two tube parts 211, 212 which have no projections in the radial direction in order to define a chamber.
  • the elastic element 213 is preferably arranged such that it adheres to the two inner and outer walls of the tube, so that it is arranged in a sealing manner.
  • FIG. 5 shows a further embodiment of two pipe parts
  • the pipe part 250 is arranged radially inside the pipe part 260.
  • the tubular part 260 has a region 261 projecting radially outward, which thereby forms a free space for forming a receiving space for a sealing element.
  • Pipe part 250 has the region 253 projecting radially inwards which, together with the area 261, forms the chamber for receiving the sealing element. Furthermore, radially outwardly projecting regions are arranged on the element 250, which come or can come to support on the radially outer tubular part, so that the tubular parts cannot tilt relative to one another.
  • Support elements 4 can also be arranged on the radially inner and / or outer tube part.

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)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Lens Barrels (AREA)
  • Power Steering Mechanism (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

L'invention concerne un échangeur de chaleur comportant une pluralité de tubes parallèles (101). Deux sections de tube (130) et (131) sont placées radialement à l'extérieur des tubes (101) de sorte que, sur une zone partielle dans le sens axial de l'échangeur de chaleur, une partie de la première section de tube (130) soit située radialement à l'extérieur d'une partie de la deuxième section de tube (131). En outre, un élément d'étanchéité (150) est situé dans la zone où les deux sections de tube (130) et (131) sont radialement en contact l'une avec l'autre, sur une zone partielle de ces dernières dans le sens axial.
EP03729917A 2002-03-15 2003-03-12 Echangeur de chaleur Expired - Lifetime EP1488185B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10211635 2002-03-15
DE10211635A DE10211635A1 (de) 2002-03-15 2002-03-15 Wärmetauscher
PCT/EP2003/002557 WO2003078913A1 (fr) 2002-03-15 2003-03-12 Echangeur de chaleur

Publications (2)

Publication Number Publication Date
EP1488185A1 true EP1488185A1 (fr) 2004-12-22
EP1488185B1 EP1488185B1 (fr) 2008-08-13

Family

ID=27771369

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03729917A Expired - Lifetime EP1488185B1 (fr) 2002-03-15 2003-03-12 Echangeur de chaleur

Country Status (7)

Country Link
US (1) US20050224213A1 (fr)
EP (1) EP1488185B1 (fr)
AT (1) ATE404838T1 (fr)
AU (1) AU2003240443A1 (fr)
DE (2) DE10211635A1 (fr)
ES (1) ES2311704T3 (fr)
WO (1) WO2003078913A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10218521A1 (de) * 2002-04-25 2003-11-06 Behr Gmbh & Co Abgaswärmeübertrager, insbesondere für Kraftfahrzeuge
DE10349140A1 (de) * 2003-10-17 2005-05-12 Behr Gmbh & Co Kg Wärmeübertrager, insbesondere für Kraftfahrzeuge
US20070170660A1 (en) * 2005-12-01 2007-07-26 Burgess Michael J Heat exchanger seal
US9067289B2 (en) 2007-04-05 2015-06-30 Honeywell International Inc. Heat exchanger with telescoping expansion joint
US20080245507A1 (en) * 2007-04-05 2008-10-09 Keith Agee Heat Exchanger with Telescoping Expansion Joint
KR101038399B1 (ko) * 2008-09-17 2011-06-01 한국수력원자력 주식회사 Ｏｎ-ｌｉｎｅ 전열관 파손감지 기능을 갖는 소듐 냉각 고속로용 증기발생기
FR3057655B1 (fr) * 2016-10-18 2018-12-07 Novares France Echangeur thermique integre dans un repartiteur
CN114294991B (zh) * 2021-12-01 2023-10-24 浙江搏克换热科技有限公司 一种可调式缓冲型防冲机构及绕管式换热器

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Also Published As

Publication number Publication date
EP1488185B1 (fr) 2008-08-13
WO2003078913A1 (fr) 2003-09-25
DE50310319D1 (de) 2008-09-25
US20050224213A1 (en) 2005-10-13
ES2311704T3 (es) 2009-02-16
DE10211635A1 (de) 2003-09-25
AU2003240443A1 (en) 2003-09-29
ATE404838T1 (de) 2008-08-15

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