EP2342522A2 - Échangeur thermique de four de recuit pour l'échange thermique entre deux fluides - Google Patents

Échangeur thermique de four de recuit pour l'échange thermique entre deux fluides

Info

Publication number
EP2342522A2
EP2342522A2 EP09740624A EP09740624A EP2342522A2 EP 2342522 A2 EP2342522 A2 EP 2342522A2 EP 09740624 A EP09740624 A EP 09740624A EP 09740624 A EP09740624 A EP 09740624A EP 2342522 A2 EP2342522 A2 EP 2342522A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
profile
fluids
heat
profile tube
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
EP09740624A
Other languages
German (de)
English (en)
Other versions
EP2342522B1 (fr
Inventor
Peter Ebner
Andreas Sauschlager
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.)
Ebner Industrieofenbau GmbH
Original Assignee
Ebner Industrieofenbau 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 Ebner Industrieofenbau GmbH filed Critical Ebner Industrieofenbau GmbH
Publication of EP2342522A2 publication Critical patent/EP2342522A2/fr
Application granted granted Critical
Publication of EP2342522B1 publication Critical patent/EP2342522B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/16—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being integral with the element, e.g. formed by extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
    • F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B5/14—Arrangements of heating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004—Systems for reclaiming waste heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • 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
    • F28D7/10—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 being arranged one within the other, e.g. concentrically
    • F28D7/12—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 being arranged one within the other, e.g. concentrically the surrounding tube being closed at one end, e.g. return type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor

Definitions

  • the invention relates to a heat exchanger for an annealing furnace for exchanging heat between two fluids having a tubular, on its outer shell heat exchanger ribs having profile on at least one end face a connection flange with at least one flow opening for one of the two fluids, in particular a hot gas heard.
  • both the heat treatment and the optionally necessary subsequent cooling takes place under a protective gas, usually nitrogen or hydrogen or a mixture of these gases.
  • a protective gas usually nitrogen or hydrogen or a mixture of these gases.
  • the heat supply or discharge is usually carried out over high-temperature resistant heat exchanger made of cast materials or ceramic.
  • These heat exchangers or recuperators are traversed by hot gases, in particular fuel gases or the like, wherein the hot gas gives off the heat to the heat exchanger and this in turn the heat over its outer cooling fins, for example, in a space or the like.
  • the invention has for its object to provide a heat exchanger for an annealing furnace, which is suitable for imaging highly dynamic temperature fluctuations, as may be required in particular during the heat treatment of Glühgut.
  • the profile is a profile tube made of a folded sheet metal, which are aligned in the profile tube longitudinal direction heat exchanger ribs from the corrugated profile, in particular of the wave flanks of the folded sheet.
  • a particularly simple and cost-effective way of producing a heat exchanger suitable for an annealing furnace which can realize particularly dynamic temperature fluctuations in the annealing furnace with a particularly low material usage and thus low weight just because of its lower internal heat storage capacity.
  • the fact that the profile is a profile tube made of folded sheet increases not only the cherries (2004), as is the case in the prior art, but also the heat exchanger inner surface, whereby the energy contained in the hot gas is better utilized on the one hand and on the other hand at compared to the prior art equal heat exchangers higher heat energy flows can be realized.
  • the invention is based on the advantage that now smaller and lighter heat exchangers can be used. Due to the small wall thickness of the heat exchanger according to the invention, the heat conductivity of the heat exchanger material can be practically neglected and increases the efficiency of the heat exchanger by a significant factor.
  • the heat exchanger ribs on the Profilrohrmantel inside and / or on the Profilrohrmantel outside could be associated with turbulizers, the improved heat transfer by the fluid flow imprinting turbulence to have.
  • the profile tube at the two end faces may be associated with a connection flange with at least one flow opening for one of the two profiles, and in operation the heat exchanger flows through the heat carrier fluid in the axial direction.
  • the profile tube at one of the two end faces may be a connection flange with at least one flow opening for one of the two fluids, wherein the other of the two end faces is completed.
  • a coaxial to the profile axis fluid pipe is provided which extends through the connecting flange and protrudes in the direction of the closed end face.
  • the heat carrier fluid can be discharged to and from the heat exchanger, which in turn can be discharged from the heat exchanger through a coaxial opening in the connection flange or introduced into the heat exchanger. This makes it possible to realize annealing furnaces with heat exchangers requiring only little space.
  • the flow opening of a heat exchanger according to the invention is preferably associated with a flame tube of a burner, which optionally with - A -
  • FIG. 1 shows a heat exchanger according to the invention in longitudinal section
  • Fig. 2 shows the heat exchanger of Figure 1 in section along the line N-II of Fig. 1
  • Fig. 3 shows a design variant of the heat exchanger of FIG. 1 in a partially sectioned longitudinal section
  • Fig. 4 the Heat exchanger of Fig. 1 in an enlarged oblique view.
  • a heat exchanger 1 for an annealing furnace for exchanging heat between two fluids, a hot gas flowing through the heat exchanger inside and an internal annealing furnace to be heated by the heat exchanger comprises a connection flange 4 with at least one flow opening 8 for one of the two fluids, into which flow opening 8 on at least one end face 3 optionally a flame tube of a burner can be used.
  • the heat exchanger 1 is formed by a profile, which according to the invention is a profile tube 5 made of folded sheet metal whose profile tube longitudinal direction, parallel to the profile tube axis 6, aligned heat exchanger ribs 7 are formed by the wave profile, in particular of the wave flanks of the folded sheet.
  • the profiled tube 5 has at both end faces a connection flange 4, each with at least one flow opening 8 for one of the two fluids, which flows through the profile tube 5 in operation in the direction of the profile tube axis 9.
  • the embodiment of FIG. 3 belongs to the profile tube 5 at one of the two end faces a connection flange 4 with a flow opening 8 for one of the two fluids and is the other of the two end faces with a cover plate 10 completed.
  • a fluid pipe 11 which is coaxial to the profile tube axis 9 is provided which projects through the connection flange 4 and protrudes in the direction of the closed end side, to the end plate 10.
  • the hot gas is introduced through the fluid pipe 11 into the heat exchanger 1 and leaves it through a coaxial annular gap between the fluid pipe 11 and the connection flange 4 through the flow opening 8.
  • the heat exchanger 1 is made by folding sheet metal with welded end pieces, wherein the folding takes place without stretching on the longitudinal sides of the profile surfaces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Geometry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

L'invention concerne un échangeur thermique (1) de four de recuit pour l'échange thermique entre deux fluides, cet échangeur ayant un profilé tubulaire présentant des ailettes d'échange thermique sur son enveloppe externe, et au moins une de ses faces frontales (3) étant pourvue d'une bride de raccordement (4) dotée d'au moins un orifice d'écoulement (8) pour un des deux fluides, notamment un gaz chaud. L'invention vise à créer une géométrie de conception avantageuse. A cet effet, le profilé est un tube profilé en tôle pliée dont les ailettes d'échange thermique (7) orientées dans le sens longitudinal du tube sont formées par le profil ondulé de la tôle pliée, notamment par les faces des plis.
EP09740624.3A 2008-10-20 2009-10-09 Four de recuit avec échangeur thermique Not-in-force EP2342522B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0164108A AT507422B1 (de) 2008-10-20 2008-10-20 Wärmetauscher für einen glühofen zum wärmetausch zwischen zwei fluiden
PCT/AT2009/000391 WO2010045664A2 (fr) 2008-10-20 2009-10-09 Échangeur thermique de four de recuit pour l'échange thermique entre deux fluides

Publications (2)

Publication Number Publication Date
EP2342522A2 true EP2342522A2 (fr) 2011-07-13
EP2342522B1 EP2342522B1 (fr) 2013-11-20

Family

ID=42119728

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09740624.3A Not-in-force EP2342522B1 (fr) 2008-10-20 2009-10-09 Four de recuit avec échangeur thermique

Country Status (13)

Country Link
US (1) US20110308780A1 (fr)
EP (1) EP2342522B1 (fr)
JP (1) JP2012506025A (fr)
KR (1) KR20110076949A (fr)
CN (1) CN102187173B (fr)
AT (1) AT507422B1 (fr)
BR (1) BRPI0919799A2 (fr)
CA (1) CA2741095A1 (fr)
MX (1) MX2011004231A (fr)
RU (1) RU2493526C2 (fr)
TW (1) TW201027019A (fr)
WO (1) WO2010045664A2 (fr)
ZA (1) ZA201102683B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2565419A1 (fr) * 2011-08-30 2013-03-06 Siemens Aktiengesellschaft Refroidissement d'une turbomachine
US11022340B2 (en) 2016-08-01 2021-06-01 Johnson Controls Technology Company Enhanced heat transfer surfaces for heat exchangers
RU2700805C1 (ru) * 2019-05-13 2019-09-23 Александр Игоревич Павлов Способ продольного оребрения рабочей поверхности теплообменника

Family Cites Families (20)

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US1912785A (en) * 1931-04-03 1933-06-06 Roy I Mills Absorption fin
DE839806C (de) * 1949-08-02 1952-05-26 Otto H Dr-Ing E H Hartmann Sternfoermiges Faltenrohr als Einsatzrohr fuer Waermeaustauscher
US2682157A (en) * 1950-11-03 1954-06-29 Heat X Changer Co Inc Gas separation
US2692763A (en) * 1952-03-08 1954-10-26 Air Preheater Supporting spacer for annular corrugated fins
JPS501093B1 (fr) * 1970-05-23 1975-01-14
JPS5138462B2 (fr) * 1972-06-20 1976-10-21
US4059882A (en) * 1976-05-24 1977-11-29 United Aircraft Products, Inc. Method of making an annular tube-fin heat exchanger
GB1579276A (en) * 1976-08-23 1980-11-19 Borg Warner Heat exchanger for cooling exhaust gas
US4096616A (en) * 1976-10-28 1978-06-27 General Electric Company Method of manufacturing a concentric tube heat exchanger
JPS5616618A (en) * 1979-07-20 1981-02-17 Sumitomo Metal Ind Ltd Continuous annealing furnace
JPH0512277Y2 (fr) * 1986-04-22 1993-03-29
RU2013747C1 (ru) * 1991-04-18 1994-05-30 Ерченко Герман Николаевич Вертикальная труба конденсатора
JP3131668B2 (ja) * 1992-12-01 2001-02-05 昭和アルミニウム株式会社 オイルクーラ
US5542467A (en) * 1993-07-06 1996-08-06 Societe E'etudes Et De Constructions Aero-Navales Safety annular heat exchanger for incompatible fluids
CN2313194Y (zh) * 1997-10-20 1999-04-07 鞍钢新轧钢股份有限公司 加热罩空气换热器套管
JP3927700B2 (ja) * 1998-09-07 2007-06-13 マルヤス工業株式会社 熱交換器の製造方法
JP2001012872A (ja) * 1999-06-25 2001-01-19 Toyo Radiator Co Ltd 蒸発器
CN2432539Y (zh) * 2000-07-25 2001-05-30 宝山钢铁股份有限公司 罩式退火炉热管换热器
DE10349887B4 (de) * 2003-10-25 2013-03-07 Benteler Automobiltechnik Gmbh Kühler für ein Abgas-Rückführ-System bei einem Verbrennungsmotor
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Also Published As

Publication number Publication date
BRPI0919799A2 (pt) 2016-05-03
CA2741095A1 (fr) 2010-04-29
MX2011004231A (es) 2011-06-17
CN102187173A (zh) 2011-09-14
AT507422B1 (de) 2010-05-15
JP2012506025A (ja) 2012-03-08
AT507422A4 (de) 2010-05-15
TW201027019A (en) 2010-07-16
WO2010045664A3 (fr) 2011-04-28
EP2342522B1 (fr) 2013-11-20
RU2493526C2 (ru) 2013-09-20
CN102187173B (zh) 2013-04-03
ZA201102683B (en) 2012-06-27
KR20110076949A (ko) 2011-07-06
US20110308780A1 (en) 2011-12-22
RU2011120166A (ru) 2012-11-27
WO2010045664A2 (fr) 2010-04-29

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