EP2042821B1 - Echangeur thermique - Google Patents

Echangeur thermique Download PDF

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Publication number
EP2042821B1
EP2042821B1 EP08016339.7A EP08016339A EP2042821B1 EP 2042821 B1 EP2042821 B1 EP 2042821B1 EP 08016339 A EP08016339 A EP 08016339A EP 2042821 B1 EP2042821 B1 EP 2042821B1
Authority
EP
European Patent Office
Prior art keywords
heat
flow duct
receiving
receiving flow
medium
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.)
Not-in-force
Application number
EP08016339.7A
Other languages
German (de)
English (en)
Other versions
EP2042821A3 (fr
EP2042821A2 (fr
Inventor
Ali Ekbul
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2042821A2 publication Critical patent/EP2042821A2/fr
Publication of EP2042821A3 publication Critical patent/EP2042821A3/fr
Application granted granted Critical
Publication of EP2042821B1 publication Critical patent/EP2042821B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
    • F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0015—Guiding means in water channels
    • 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
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • 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
    • F28D7/02—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 helically coiled
    • F28D7/028—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 helically coiled the conduits of at least one medium being helically coiled, the coils having a conical configuration
    • 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
    • F28D7/02—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 helically coiled
    • F28D7/022—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 helically coiled the conduits of two or more media in heat-exchange relationship being helically coiled, the coils having a cylindrical configuration
    • 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
    • F28D7/02—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 helically coiled
    • F28D7/026—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 helically coiled the conduits of only one medium being helically coiled and formed by bent members, e.g. plates, the coils having a cylindrical configuration

Definitions

  • the invention relates to a heat exchanger according to the preamble of
  • a heat exchanger for a heater is also from the DE 103 06 699 A1 known.
  • a substantially cylindrical base body which is produced by casting, executed with a heat-transferred wall.
  • the main body has inside a Schugaszug for serving as a heat-emitting medium heating gas.
  • the base body On the outside of the heat-transferring wall, the base body has a helical flow channel for serving as a heat-absorbing medium heating water.
  • the Schumacherkanal as a heat-absorbing flow channel is formed by a molded into the lateral surface of the heat-transferring wall trench, which is surrounded to the outside with a heat-transmitting wall enclosing a separate enclosure, so that the closed, helical Schumacherkanal results on the outer surface of the body ,
  • the Schumacherkanal is designed over its helical extent with locally different flow cross-sections such that the flow rate of flowing within the heat-receiving flow channel medium to the heat load of the corresponding portion of the heat-transferring wall is adaptable.
  • the EP 1136 771 A2 discloses a rectifier for a diffusion absorption plant having a triple heat exchanger having three adjacent channels of ammonia vapor and rich and poor ammonia water solution.
  • the triple heat exchanger is arranged around cooker tubes and has an inner and outer wall, the intermediate space preferably includes two further channels.
  • the heating water flowing in the heat-absorbing flow channel is circulated by a pump and supplied to external heat sinks.
  • the heating water is used, for example, the space heating or domestic hot water.
  • a heater control detects a corresponding drinking water heat demand and actuates a switching valve, which called the heated in the heat exchanger described above heating water via a separate drinking water heat exchanger, also called secondary heat exchanger directs.
  • the heating water cools in the secondary heat exchanger and flows back into the helical flow channels of the primary heat exchanger, while a drinking water stream is heated in the secondary heat exchanger and supplied to the consumer.
  • the domestic hot water preparation is thus dependent on a circulated by a pump heating water flow, a changeover valve and a secondary heat exchanger.
  • the secondary heat exchanger is usually designed as Plattenphiltauseher.
  • Object of the present invention is to provide a heat exchanger in which a domestic hot water production accomplished with the least possible additional design effort, dispense with expensive additional components and a risk of failure is minimized.
  • the structural design of the heat exchanger is characterized by a in the heating water channel - here called the first heat-absorbing flow channel - arranged separate second heat-absorbing flow channel for a second heat-absorbing medium.
  • This second heat-absorbing flow channel substantially follows the helical course of the first heat-absorbing flow channel and is at least partially surrounded by the first heat-absorbing medium.
  • the second heat-absorbing medium may be, for example, drinking water.
  • the second heat-absorbing flow channel thermally conductively connected to the bottom of the first heat-absorbing flow channel.
  • the cross-sectional shape of the second heat-absorbing flow channel may be round or elliptical.
  • the available free cross-sectional area of the second heat-absorbing flow channel is approximately half the size of the flow-available free cross-sectional area of the first heat-absorbing flow channel.
  • the second heat-absorbing flow channel opens at an end face of the base body approximately perpendicular to the first heat-absorbing flow channel and exits at the opposite end face in approximately perpendicular to the first heat-absorbing flow channel. In this case, the second flow channel passes through the end surfaces of the heat exchanger base body which delimit the first flow channel to the outside and which have recesses for this purpose.
  • the second heat-absorbing flow channel has locally different flow cross-sections along its longitudinal extent such that the flow rate of the second heat-absorbing medium flowing within the second heat-absorbing flow channel is adaptable to the heat load of the corresponding region of the first heat-absorbing flow channel and / or the heat-transmitting wall.
  • the heating of heating water happens as from the DE 103 06 699 A1 known under circulation by means of a circulation pump.
  • the heat flow comes from the heat-emitting medium of the SchuKes and flows through the heat-transferring wall and the first heat-absorbing flow channel laterally bounding helically rib in the heating water.
  • the second flow channel When a request of domestic hot water, the second flow channel is traversed by drinking water, while the heating water is not circulated further.
  • the heat flow now flows - from the heat-emitting medium of the Schugaszuges, the heat-transferring wall and the helically encircling rib coming - through the heating water in the second heat-absorbing flow channel and in the drinking water. If the second heat-absorbing flow channel is connected in a heat-conducting manner to the bottom of the first flow channel, heat also flows into the drinking water via this direct contact.
  • a heat exchanger which allows both the Schumacherer stiirmung and the domestic hot water preparation by the integration of a second heat-absorbing flow channel in a first heat-absorbing flow channel, dispensing with a secondary heat exchanger and a changeover valve.
  • the drinking water is supplied during the domestic hot water production by the supply pressure in the pipeline network, the heating water does not have to be circulated.
  • the risk of failing switching valve or zusetzerter plate heat exchanger is bypassed as well as a consumption of auxiliary power for the pump operation.
  • the drawing illustrates an embodiment that does not fall under the scope of the claims. It shows the schematic structure of the main body with first and second heat-absorbing flow channel of a heat exchanger according to the invention.
  • the central heating flue as a heat-emitting flow channel is recognizable, but not shown in detail.
  • the heat exchanger comprises a main body 1 and a separate enclosure 2.
  • the main body 1 is divided by the heat-transferring wall 3 into a heat-emitting flow channel 4 for a heat-emitting medium (heating gas) and into a first heat-absorbing flow channel 5 for a first heat-absorbing medium (heating water) ,
  • the first heat-absorbing flow channel 5 laterally bounding helically extending rib 6 gives the flow channel 5 its characteristic helical course along the heat-transferring wall 3, which is indicated in the lower drawing area by dashed lines.
  • a separate second heat-absorbing flow channel 7 - here tubular-shaped - for a second heat-absorbing medium (drinking water) arranged.
  • the second heat-absorbing flow channel 7 is thermally conductively connected to the bottom of the first heat-absorbing flow channel 5 and follows the helical course of the first flow channel 5, which is indicated by dashed lines in the upper drawing area.
  • At the end faces 8, 9 of the main body of the second flow channel 7 opens approximately perpendicular to the first flow channel 5 or occurs approximately vertically out of it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Fluid Heaters (AREA)

Claims (7)

  1. Echangeur de chaleur, comprenant une enveloppe séparée (2) et un corps de base (1), dans lequel sont formés un canal d'écoulement donneur de chaleur (4) pour un fluide donneur de chaleur et un premier canal d'écoulement récepteur de chaleur (5) pour un premier fluide récepteur de chaleur, dans lequel il se produit un transfert de chaleur du fluide donneur de chaleur au fluide récepteur de chaleur au moyen d'une paroi de transfert de chaleur (3) formée sur le corps de base (1), dans lequel le premier canal d'écoulement récepteur de chaleur (5) est mené en forme d'hélice le long de la paroi de transfert de chaleur (3) et est limité latéralement par une nervure périphérique en forme d'hélice (6), et dans lequel un deuxième canal d'écoulement récepteur de chaleur séparé (7) pour un deuxième fluide récepteur de chaleur est disposé dans le premier canal d'écoulement récepteur de chaleur (5), lequel suit essentiellement le tracé hélicoïdal du premier canal d'écoulement récepteur de chaleur (5) et est balayé au moins en partie par le premier fluide récepteur de chaleur, caractérisé en ce que le deuxième canal d'écoulement récepteur de chaleur (7) présente le long de son extension longitudinale des sections transversales d'écoulement localement différentes, de telle manière que la vitesse d'écoulement du deuxième fluide récepteur de chaleur circulant à l'intérieur du deuxième canal d'écoulement récepteur de chaleur (7) puisse être adaptée à la charge thermique de la zone correspondante du premier canal d'écoulement récepteur de chaleur (5) et/ou de la paroi de transfert de chaleur (3).
  2. Echangeur de chaleur selon la revendication 1, caractérisé en ce que le deuxième canal d'écoulement récepteur de chaleur (7) est assemblé en conduction thermique à la base du premier canal d'écoulement récepteur de chaleur (5).
  3. Echangeur de chaleur selon la revendication 1 ou 2, caractérisé en ce que le corps de base (1) se compose d'un matériau coulé et le deuxième canal d'écoulement récepteur de chaleur (7) se compose d'un tube métallique, dans lequel le deuxième canal d'écoulement récepteur de chaleur (7) est brasé ou soudé sur la base du premier canal d'écoulement récepteur de chaleur (5).
  4. Echangeur de chaleur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la section transversale du deuxième canal d'écoulement récepteur de chaleur (7) est ronde ou elliptique.
  5. Echangeur de chaleur selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'aire libre de la section transversale du deuxième canal d'écoulement récepteur de chaleur (7) est de deux fois moins grande à deux fois plus grande que l'aire libre de la section transversale du premier canal d'écoulement récepteur de chaleur (5).
  6. Echangeur de chaleur selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le deuxième canal d'écoulement récepteur de chaleur (7) débouche dans le premier canal d'écoulement récepteur de chaleur (5) sensiblement verticalement à une face frontale (8) du corps de base et sort du premier canal d'écoulement récepteur de chaleur (5) sensiblement verticalement à la face frontale opposée (9).
  7. Echangeur de chaleur selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le premier fluide récepteur de chaleur est de l'eau de chauffage et le deuxième fluide récepteur de chaleur est de l'eau de boisson.
EP08016339.7A 2007-09-28 2008-09-17 Echangeur thermique Not-in-force EP2042821B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR2007/06718A TR200706718A1 (tr) 2007-09-28 2007-09-28 Eşanjör.

Publications (3)

Publication Number Publication Date
EP2042821A2 EP2042821A2 (fr) 2009-04-01
EP2042821A3 EP2042821A3 (fr) 2013-11-27
EP2042821B1 true EP2042821B1 (fr) 2015-12-23

Family

ID=40134163

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08016339.7A Not-in-force EP2042821B1 (fr) 2007-09-28 2008-09-17 Echangeur thermique

Country Status (2)

Country Link
EP (1) EP2042821B1 (fr)
TR (1) TR200706718A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2003917C2 (nl) * 2009-12-07 2011-06-09 Stichting Energie Gaskoeler.
NL2004147C2 (en) * 2010-01-26 2011-07-27 Daalderop Bv Heat exchanger.
EP3019795A1 (fr) * 2013-07-09 2016-05-18 Cast Aluminum Solutions, LLC Élément chauffant à circulation
CN103591682B (zh) * 2013-11-27 2016-01-20 郑宗标 高效能低排放热水锅炉
CN104776734A (zh) * 2015-04-01 2015-07-15 威能(无锡)供热设备有限公司 热交换器及采用该热交换器的燃气锅炉
CN106247710A (zh) * 2016-08-19 2016-12-21 安徽省宁国市天成电气有限公司 一种管路防结冰装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR813803A (fr) * 1936-11-20 1937-06-09 Méthode et appareils pour l'échange de chaleur
FR1301171A (fr) * 1961-09-20 1962-08-10 Saunier Duval Corps de chauffe de chaudière à gaz à deux usages
ATE300710T1 (de) * 2000-03-22 2005-08-15 Bbt Thermotechnik Gmbh Rektifikator für eine diffusionsabsorptionsanlage
EP1340947A1 (fr) * 2002-02-28 2003-09-03 Christian Dr.-Ing. Lorenz Chaudière
DE10306699A1 (de) 2003-02-18 2004-09-02 Robert Bosch Gmbh Wärmetauscher mit einem strömungsoptimierten wärmeaufnehmenden Strömungskanal, insbesondere für ein Heizgerät
NZ562961A (en) * 2005-04-07 2011-03-31 Benjamin Paul Baker Heat exchangers for cooling beverages, the exchanger having adjustable baffles to change the heat transfer characteristics

Also Published As

Publication number Publication date
EP2042821A3 (fr) 2013-11-27
TR200706718A1 (tr) 2009-04-21
EP2042821A2 (fr) 2009-04-01

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