EP1520148B1 - Dispositif pour l'echange de chaleur entre des substances pouvant s'ecouler - Google Patents

Dispositif pour l'echange de chaleur entre des substances pouvant s'ecouler Download PDF

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Publication number
EP1520148B1
EP1520148B1 EP03729966A EP03729966A EP1520148B1 EP 1520148 B1 EP1520148 B1 EP 1520148B1 EP 03729966 A EP03729966 A EP 03729966A EP 03729966 A EP03729966 A EP 03729966A EP 1520148 B1 EP1520148 B1 EP 1520148B1
Authority
EP
European Patent Office
Prior art keywords
passage
chamber
channel
flat pipe
pressure limiting
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
EP03729966A
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German (de)
English (en)
Other versions
EP1520148A1 (fr
Inventor
Mark Graeme Keen
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.)
Hydac SA
Original Assignee
Hydac SA
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 Hydac SA filed Critical Hydac SA
Publication of EP1520148A1 publication Critical patent/EP1520148A1/fr
Application granted granted Critical
Publication of EP1520148B1 publication Critical patent/EP1520148B1/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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05383—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • 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
    • F28F2250/06—Derivation channels, e.g. bypass

Definitions

  • the invention relates to a device for heat exchange between fluid media, of which at least one is in the liquid state.
  • the turbulence causing components cause a certain throttling of the liquid flow, so that between the input side Inflow chamber for the liquid to be cooled and the output side outflow chamber of the liquid builds up a dependent of the throttling differential pressure.
  • the viscosity of which is highly temperature-dependent the viscosity of which is highly temperature-dependent, the correspondingly high viscosity of the liquid due to the throttling in the operating phases in which the liquid in question has a low temperature, for example during start-up phases in which the operating fluid in question is still cold Fluid paths of the device lead to excessive pressure increase.
  • a bypass device between inflow and outflow chamber of the device which is normally closed, but has a pressure limiting device, which allows the secondary flow of the liquid until, when the Cooling liquid has reached its operating temperature and the viscosity has decreased accordingly, the differential pressure at the device has dropped to a safe value, in which the secondary flow is blocked and the liquid flows through only the fluid paths for the heat exchange.
  • a cooling device for fluid media in particular water cooler for oil-operated hydraulic systems and internal combustion engines, in which the medium to be cooled II is brought under heat exchange in indirect contact with the cooling medium I, with a per se known oil-air cooler with connection piece for the inlet and outlet of the medium II in a heat sink having a plurality of spaced, parallel cooling channels, the interstices are filled with fins, through which the medium flows through 1 turbulent and at the with the Connection piece provided longitudinal sides a lid is provided, which in the region of the connection piece is fastened and has internal and external seals, and with an approximately hollow cuboid cast body with a plurality of chambers and nozzles for the inlet and outlet of the medium I, in which the oil-air cooler is inserted and fixed substantially form-fitting manner such that in use the outer edge of the lid over a seal sealingly rests on the housing edge.
  • a generic device for heat exchange between fluid media of which at least one is in a liquid state, with a heat exchanger block, on one side by an inflow and on the opposite side by a discharge chamber for supply or the discharge of the liquid medium is limited, the fluid paths for the liquid medium, which extend through the block from the inflow to the outflow chamber and are separated by flow paths located therebetween for the passage of the other flowable medium, and a cover plate having overlapping the fluid paths and flow paths extending from the inflow chamber to the outflow chamber and terminating the block at one end, the cover plate having at least one inner passageway, the fluid paths immediately as Maustromkanal from the inflow to the outflow first extends, by at least one pressure limiting device lockable and by opening the device due to a prevailing between inflow and outflow chamber, a predetermined threshold exceeding pressure difference is releasable.
  • the oil cooler is formed einflutig, so that when the oil has operating temperature and is to cool instead of a bridging line in the cover plate of the radiator, the oil in the return flow through the other fluid paths within the heat exchanger block from the inflow towards Outflow chamber is guided out. Accordingly, all fluid paths of the tube bundle of the heat exchanger block are flowed through in one direction by the oil.
  • a tube bundle of the heat exchanger block allows the flow of oil supplied via an oil inlet from the outflow chamber in the direction of the inflow chamber, which serves as a reversing chamber and another second tube bundle allows the return of the oil from the inflow chamber back to the outflow chamber and from there to an oil outlet.
  • For separating the fluid flows serves a partition wall within the outflow chamber, which separates them so far in about the same size sub-chambers.
  • the invention has the object, while maintaining the advantages in the prior art, the known devices further improve to the effect that they are characterized by a particularly simple structure that can be implemented easily and inexpensively, and yet To a great extent a functionally reliable use is achieved at a wide variety of temperatures of the medium to be cooled.
  • this object solves a device having the features of claim 1 in its entirety.
  • the apparatus comprises a heat exchanger block in which the fluid paths for the heat exchange fluid extend between an inflow chamber bounding the block on one side and an outflow chamber bounding the block on the opposite side; wherein fluid paths and flow paths for passing the other fluid medium, such as the cooling air, alternate with each other, i. in the block on each other.
  • a cover plate is provided as the upper end of the block.
  • the cover plate has two through channels, the fluid paths immediately, extend as bypass channels from the inflow to the Auströmhunt, the respective passage depending on the pressure difference between inflow and outflow chamber by means of a pressure limiter lockable or releasable , According to the invention therefore provided as a safety device against a build-up of excess pressure respective bypass device is integrated in the cover plate of the heat exchanger block. This leads to a substantial simplification of the structure of the device, which is simple and inexpensive to produce in aspired.
  • the preparation of the device is particularly simple, which is provided as a cover plate, a portion of a hollow profile body formed by extrusion in the form of a flat tube, which is closed at both ends by a closure plate.
  • the strand of the flat tube forming hollow profile body is extruded so that the flat tube has the two inner through channels.
  • the wall of the flat tube is provided with appropriate fürgansgbohrungen that allow in the end regions of each passage channel fluid communication to the inflow and outflow chamber, wherein for each passage of the flat tube at least ever seen a pressure relief device before. These are each arranged in one of the through holes in the flat tube.
  • the respective pressure limiting device may also consist of a controlled by pressure and / or temperature closing part, for example in the form of a temperature-dependent expansion element. If the medium to be cooled is cold, it also builds up a correspondingly high pressure in the device and the pressure limiting device has to release the bypass function of the cooler. If the temperature of the medium to be cooled then increases and is thus highly fluid, it can flow directly through the cooler, bypassing the bypass function, in which the closing part closes the bypass at a higher temperature.
  • a pertinent closure part can be realized, for example, by an expansion element and the bypass device according to the invention can also be subsequently connected to existing radiators.
  • a check valve in the form of a spring-loaded poppet valve is provided as a pressure limiting device for each passage.
  • the fluid paths and the flow paths forming components can each be superposed to form a block with a desired number of elements are soldered, at the same time forming the Crowström listening Cover plate can be fixed at the top of the block by soldering.
  • the cover plate forming flat tube is connected at the ends of the passageway or the passageways through a closure plate, which is soldered when soldering the heat exchanger block with.
  • the closure plates preferably have a passage formed therein allowing fluid communication between the passageways. This passage may be formed by an elongated recess formed in the closure plates and extending over the ends of the passageways located in the flat tube.
  • Fig. 1 which shows a highly simplified schematic representation of an embodiment of the invention in the form of a liquid / air cooler in block design, are an inflow chamber for the supply of the liquid to be cooled and an outflow chamber for dispensing the liquid with 1 and 3 respectively designated.
  • the heat exchanger block has alternating, superimposed heat exchange elements plate-shaped, namely fluid guide body 5, the inner fluid paths 7 contain, through which flows the liquid to be cooled from the inflow chamber 1 to the outflow chamber 3, and grid body 8, form the flow paths for cooling air flowing therethrough, the cooling fins of the grid body 8 sweeps.
  • the fluid guide body 5 and the grid body 8 are plate-like components with a square or rectangular outline.
  • the heat exchanger block with lateral inflow chamber 1 and lateral outflow chamber 3 and the stack of fluid guide bodies located between them 5 and grids 8, which components are all soldered together, is completed at the top by a cover plate 9, which is also soldered.
  • This cover plate 9 forms a bypass device for a fluid connection between inflow chamber 1 and outflow chamber 3, bypassing the fluid paths 7 in the fluid guide bodies 5, see the in Fig. 1 and 2 double-line drawn flow arrows, the inflow of liquid from the inflow chamber 1 in the cover plate. 9 and illustrate the flow of liquid from the cover plate 9 in the outflow chamber 3 via spring-loaded ball check valves 11.
  • the normally closed by spring load check valves 11 form a pressure limiting device which releases the liquid flow when the pressure difference between inflow chamber 1 and outflow chamber 3 exceeds a preselected by adjustment of the valve spring force threshold.
  • Fig. 1 only a check valve 11 is shown.
  • a plurality of check valves 11 are provided in the present embodiment, as can be seen from Fig. 2, seen with respect to FIG. 1 vertical viewing direction, the fluid flow of the cover plate 9 formed by the bypass device 11 through the check valves , d. H. in the outflow chamber 3, illustrates.
  • the cover plate 9 is, as can be seen from Fig. 3, formed by a strand portion of an extruded hollow body profile in the form of a flat tube, which is slaughtermat in the present example, that has two inner through-channels 13. Both ends of the cover plate 9 forming flat tube are completed by a respective closure plate 15 which in Fig. 4 is shown in more detail.
  • Through holes in the wall of the cover plate 9 forming flat tube form the fluid connection between inflow chamber 1 and the inner passageways 13 and the fluid connection of the passageways 13 with the outflow chamber 3.
  • the inflow chamber 1 associated through holes, of which in Fig. 1 only one is visible, are designated 17.
  • the outflow chamber 3 associated through holes are designated 19. According to the number of two through-channels 13 provided in the exemplary embodiment, two through-holes 17 are provided on the inflow chamber 1 and two through-holes 19 on the outflow chamber 3 in the present example.
  • a check valve 11 is arranged in each through-bore 19 in order, as already indicated above, to achieve a sufficiently large valve passage cross-section without having to use excessively large valves.
  • the shutter plates 15 are provided with an incorporated, recessed, elongated groove 21.
  • groove 21 extends over the ends of both passageways 13, as can be seen in comparing FIGS. 3 and 4, thereby forming a passageway providing fluid communication between the passageways 13 produces at both ends.
  • access holes 23 are formed in the wall of the flat tube forming the cover plate 9 and corresponding to the respective non-return valve 11 1 and 3.
  • the access bores 23 can be locked by a closure part 25, which may be a screwed-in cover part or the like.
  • the respective pressure-limiting device 11 may also consist of a controlled by pressure and / or temperature closing part, for example in the form of a temperature-dependent expansion element.
  • the medium to be cooled is cold, it also builds up a correspondingly high pressure in the device and the pressure limiting device 11 has to release the bypass function of the cooler. If the temperature of the medium to be cooled then increases and is thus highly fluid, it can flow directly through the radiator, bypassing the bypass function, in that the closing part closes the bypass at a higher temperature.
  • a pertinent closure member can be realized, for example, by an expansion element accordingly.
  • the bypass device according to the invention can also be subsequently connected to existing radiator, since preferably the bypass device has a height which corresponds to a fluid channel 7 and a subsequent lamellar channel 8 in the overall height.
  • the space-standardized bypass device is retrofitted and welded, so that retrofitting with the bypass device is readily possible without the cooling capacity of the thus converted cooling device would be substantially reduced.

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  • 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)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (6)

  1. Dispositif d'échange de chaleur entre des milieux aptes à s'écouler, dont l'un au moins est à l'état liquide, comprenant un bloc d'échangeur de chaleur, qui est délimité d'un côté par une chambre (1) d'entrée et, du côté opposé, par une chambre (3) de sortie pour l'afflux et l'évacuation du milieu liquide, qui a des voies (7) de fluide pour le milieu liquide qui vont dans le bloc de la chambre (1) d'entrée à la chambre (3) de sortie et qui sont séparés les uns des autres par des voies (8) de courant se trouvant entre elles pour le passage de l'autre milieu à s'écouler, ainsi qu'une plaque (9) de couverture qui va, en recouvrant les voies (7) de fluide et les voies (8) de courant, de la chambre (1) d'entrée à la chambre (3) de sortie et qui ferme le bloc à une extrémité, la plaque (9) de couverture ayant au moins un canal (13) de passage qui, en contournant les voies (7) de fluide, va en tant que canal de courant secondaire de la chambre (1) d'entrée à la chambre (3) de sortie, qui peut être obturé par au moins un dispositif (11) limiteur de pression et qui peut être dégagé par l'ouverture du dispositif (11) en raison d'une différence de pression dépassant une valeur de seuil déterminée à l'avance régnant entre la chambre (1) d'entrée et la chambre (3) de sortie, caractérisé en ce qu'il est prévu comme plaque (9) de couverture une partie sous la forme d'un tube (9) plat d'un corps profilé creux formé par extrusion qui est fermé aux deux extrémités par une plaque (15) de fermeture, en ce qu'il est formé dans la paroi du tube (9) plat, dans ses parties d'extrémité voisines de la chambre (1) d'entrée et de la chambre (3) de sortie, des trous (17, 19) de passage qui forment une liaison fluidique entre le au moins un canal (13) de passage du tube (9) plat et la chambre (1) d'entrée et la chambre (3) de sortie, en ce que le tube (9) plat a deux canaux (13) intérieurs de passage qui communiquent chacun par les trous (17, 19) de passage avec la chambre (1) d'entrée et respectivement la chambre (3) de sortie, en ce qu'il est prévu pour chaque canal (13) de passage du tube (9) plat au moins respectivement un dispositif (11) limiteur de pression, en ce que le dispositif (11) limiteur de pression pour chaque canal (13) de passage est disposé dans un trou (17, 19) de passage traversant la paroi du tube (9) plat, et en ce que les dispositifs (11) limiteurs de pression sont prévus respectivement dans le trou (19) de passage mettant en communication le canal (13) de passage avec la chambre (3) de sortie.
  2. Dispositif suivant la revendication 1, caractérisé en ce qu'il est prévu comme dispositif limiteur de pression respectivement un clapet antiretour (11) sous la forme d'une vanne à siège soumise à l'action d'un ressort.
  3. Dispositif suivant la revendication 1 ou 2, caractérisé en ce qu'il est constitué dans la paroi de chaque canal (13) de passage, dans la zone opposée au clapet antiretour (11), un trou (23) d'accès permettant d'accéder à la vanne (11) et pouvant être fermé par une pièce (25) de fermeture.
  4. Dispositif suivant l'une des revendications 1 à 3, caractérisé en ce qu'il est constitué dans les plaques (15) de fermeture des extrémités du tube (9) plat une traversée (21) formant une liaison fluidique entre les deux canaux (13) de passage.
  5. Dispositif suivant la revendication 4, caractérisé en ce que la traversée des plaques (15) de fermeture est formée par une cavité (21) qui est usinée, qui s'étend en longueur et qui s'étend sur les extrémités des canaux (13) de passage se trouvant dans le tube (9) plat.
  6. Dispositif suivant l'une des revendications 1 à 5, caractérisé en ce que le dispositif (11) limiteur de pression respectif est constitué d'une pièce de fermeture commandée au moyen de la pression et/ou de la température.
EP03729966A 2002-07-04 2003-05-02 Dispositif pour l'echange de chaleur entre des substances pouvant s'ecouler Expired - Lifetime EP1520148B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10230042 2002-07-04
DE10230042A DE10230042A1 (de) 2002-07-04 2002-07-04 Vorrichtung zum Wärmeaustausch zwischen strömungfähigen Medien
PCT/EP2003/004605 WO2004005832A1 (fr) 2002-07-04 2003-05-02 Dispositif pour l'echange de chaleur entre des substances pouvant s'ecouler

Publications (2)

Publication Number Publication Date
EP1520148A1 EP1520148A1 (fr) 2005-04-06
EP1520148B1 true EP1520148B1 (fr) 2006-06-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP03729966A Expired - Lifetime EP1520148B1 (fr) 2002-07-04 2003-05-02 Dispositif pour l'echange de chaleur entre des substances pouvant s'ecouler

Country Status (8)

Country Link
US (1) US20060032626A1 (fr)
EP (1) EP1520148B1 (fr)
JP (1) JP2006506597A (fr)
CN (1) CN100416213C (fr)
AT (1) ATE331200T1 (fr)
DE (2) DE10230042A1 (fr)
ES (1) ES2266821T3 (fr)
WO (1) WO2004005832A1 (fr)

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DE202010011010U1 (de) * 2010-08-04 2010-11-04 Bucyrus Hex Gmbh Hydraulische Vorwärmeeinrichtung für Hydraulikölkühler in einem Großhydraulikbagger
KR101339250B1 (ko) * 2012-06-11 2013-12-09 현대자동차 주식회사 차량용 열교환기
CN102818066A (zh) * 2012-08-30 2012-12-12 无锡迈鑫科技实业有限公司 流量控制阀
US9739194B2 (en) * 2013-03-04 2017-08-22 Ford Global Technologies, Llc Charge-air intercooler system with integrated heating device
KR101777482B1 (ko) * 2015-12-29 2017-09-12 서진욱 안전장치가 구비된 판형 열교환기
DE102020204271A1 (de) * 2019-04-05 2020-10-08 Dana Canada Corporation Wärmetauscheranordnung mit integriertem Ventil und Druckbypass
CN113983852B (zh) * 2021-11-04 2024-11-26 浙江银轮机械股份有限公司 换热器壳体结构及换热器
CN116067204B (zh) * 2023-01-13 2026-01-13 浙江大学温州研究院 一种热交换效率可控的微通道换热装置
US20240295369A1 (en) * 2023-03-02 2024-09-05 Meggitt Aerospace Limited Heat exchangers with decongealing bypass and methods of decongealing the same
DE102023004600A1 (de) * 2023-11-13 2025-05-15 Hydac S.A. Kreuzstromwärmetauscher

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Also Published As

Publication number Publication date
CN1666080A (zh) 2005-09-07
JP2006506597A (ja) 2006-02-23
DE50303971D1 (de) 2006-08-03
EP1520148A1 (fr) 2005-04-06
US20060032626A1 (en) 2006-02-16
DE10230042A1 (de) 2004-01-22
ES2266821T3 (es) 2007-03-01
ATE331200T1 (de) 2006-07-15
WO2004005832A1 (fr) 2004-01-15
CN100416213C (zh) 2008-09-03

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