EP0177751B1 - Echangeur de chaleur gaz-liquide ou gaz-gaz - Google Patents

Echangeur de chaleur gaz-liquide ou gaz-gaz Download PDF

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Publication number
EP0177751B1
EP0177751B1 EP85111134A EP85111134A EP0177751B1 EP 0177751 B1 EP0177751 B1 EP 0177751B1 EP 85111134 A EP85111134 A EP 85111134A EP 85111134 A EP85111134 A EP 85111134A EP 0177751 B1 EP0177751 B1 EP 0177751B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
gas
layers
heat
layer
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
Application number
EP85111134A
Other languages
German (de)
English (en)
Other versions
EP0177751A2 (fr
EP0177751A3 (en
Inventor
Heinz Schilling
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.)
Heinz Schilling KG
Original Assignee
Heinz Schilling 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 Heinz Schilling KG filed Critical Heinz Schilling KG
Priority to AT85111134T priority Critical patent/ATE46032T1/de
Publication of EP0177751A2 publication Critical patent/EP0177751A2/fr
Publication of EP0177751A3 publication Critical patent/EP0177751A3/de
Application granted granted Critical
Publication of EP0177751B1 publication Critical patent/EP0177751B1/fr
Expired 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
    • 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
    • F28D7/08—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 otherwise bent, e.g. in a serpentine or zig-zag
    • 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
    • F28D7/08—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 otherwise bent, e.g. in a serpentine or zig-zag
    • F28D7/082—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
    • F28D7/085—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions
    • 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
    • F28F1/24—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 transversely
    • F28F1/32—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 transversely the means having portions engaging further tubular elements
    • 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
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators

Definitions

  • Air / water and air / air heat exchangers of various types are known. These have plates or lamellae and / or pipes, the two streams of air and / or water being conducted through lines or channels and, in the meantime, one of the two media giving off its heat to the other medium. The highest degree of temperature exchange is achieved with countercurrent heat exchangers.
  • a block heat exchanger based on the cross flow principle which consists of assemblies for efficient production. Each assembly has a pipe coil on which fins are attached. The total air flow flows through all the assemblies one after the other. Furthermore, a counterflow heat exchanger is known from FR-A 1311571, which has fin blocks with insertable coils. There are air separation layers at the level of the pipe coil, so that a pipe coil influences the air flows of two lamella blocks.
  • the object of the invention is to provide a heat exchanger which has a very high degree of temperature exchange, is easy to repair and can be assembled and disassembled without great effort.
  • Such a heat exchanger is divided into individual, in the countercurrent principle heat exchanging and functional layer modules.
  • the required heat exchanger size can be selected for any heat exchange task, efficiently manufactured in modules and assembled on site at the application site. Transport and assembly are extremely simple and maintenance is not labor intensive. In the event of a defect, only the relevant heat exchanger layer needs to be repaired or replaced.
  • the exchanger surface required for the heat exchange or for the desired degree of temperature exchange can be arranged in front of one another - that is, in countercurrent. It is particularly advantageous if the height of each slat is a multiple of the distance between the slats. This means that the heat transfer takes place essentially over the fins and not over the walls separating the medium channels.
  • the lamella thickness is dimensioned in relation to the lamella material in such a way that low-energy loss heat conduction occurs.
  • a separating surface can be attached between the individual layers of the heat exchanger, which separates the medium flow of one layer from the medium flow of the adjacent layer. This means that cross turbulence is prevented and pressure losses are particularly low. Furthermore, the condensate that forms in one layer cannot run into other layers and can increasingly generate pressure losses there.
  • the fins extend into both media paths of different warmth, since it is ensured, in particular when the fins are narrow, that the heat transfer occurs essentially only via the fins and thus exergy losses are particularly low.
  • the heat flow from one medium to another is essentially only via the fins.
  • the gas / liquid, in particular air / water, heat exchanger shown in FIG. 1 is flowed through from right to left by gas or air and in countercurrent by liquid or water. It is divided into five layers 2, which form functional modules that each form a complete heat exchanger. Each layer 2 is at the inlet 3 and outlet 4 of the gas as well as at the inlet 5 and outlet 6 of the Liquid is connected separately, so that the entire gas stream and the entire liquid stream are divided into individual streams, a stream of both media being provided for each layer and these streams being combined again into a total stream behind the heat exchanger. While the gas streams 7 flow straight through the individual layers, the liquid flows back and forth in a pipe coil 8 in each layer 2, whereby the liquid stream crosses and flows against the air stream.
  • each layer 2 numerous fins 9 are fastened to the tubes 8 parallel to the gas flow, the fins 9 being perpendicular to the regions of the tubes 8 which run through the family of fins.
  • the lamella thickness is dimensioned in relation to the lamella material in such a way that low-energy loss heat conduction occurs.
  • a separating surface 10, which separates the gas paths of each layer, is fastened between each layer 2 parallel to the tubes 8 and to each layer.
  • each layer is connected at the beginning and end of the layer via a valve 11 to the inlet 5 and outlet line 6, respectively, so that the layers can be vented when they are put into operation for the first time and after closing two valves 11 each layer is easily taken out of operation, checked , can be cleaned or dismantled on the liquid side without disassembly.
  • the gas / gas, in particular air / air, heat exchanger shown in FIGS. 3 and 4 can be flowed through from left to right by exhaust air (exhaust gas) or outside air 12 and from right to left by a second gas stream 13:
  • the heat exchanger is divided into five individual, functional layer modules 2, each module having ribbed heat-conducting surfaces in order to extract and transfer heat from the gas flows flowing in countercurrent.
  • Each layer 2 has a separating plane 14 in the center, on which the slats 9 are fastened at right angles and parallel to one another.
  • the two gas flows are separated from one another by these levels 14, so that, except for the outer regions, i. H. 4 the upper and lower region, the gas flows each flow through two adjacent layers 2.
  • Each layer 2 is connected separately from the other layers to the inlet and outlet of both gas streams, so that, as in the first exemplary embodiment, both media streams are divided and flow through each layer with partial streams and are then led to the two outlets without leading to one to get to the next layer.
  • the lamellae 9 thus each extend into the paths of two different media, and the lamellae 9 are so close together that a heat flow occurs essentially only via the lamellae.
  • the height of the slats H is a multiple of the distance A from each other.
  • the lamella thickness is dimensioned in relation to the lamella material in such a way that low-energy loss heat conduction occurs.
  • Parallel separating surfaces 10 are arranged between the individual module layers 2 of the heat exchanger, and the same medium flow flows around them on both sides.
  • each layer 2 is releasably attached to the adjacent layer or layers, so that they can be easily replaced and assembled and removed.
  • Both heat exchangers can be used not only in the horizontal position shown in the figures, but also in other positions, in particular in a vertical position.
  • the degree of temperature exchange is 75 to 90%.

Claims (6)

1. Echangeur de chaleur gaz-liquide ou gaz- gaz avec des couches (2) d'échangeur de chaleur disposées parallèles,
qui transmettent la chaleur d'un milieu à un second par une pluralité de lamelles (9) conductrices de la chaleur d'une seule pièce et parallèles entre elles,
dont chacune d'entre elles forme un échangeur à contre-courant complet qui conduit les deux milieux,
qui se trouvent parallèles aux autres couches (2) et sont raccordées respectivement séparément pour chaque milieu avec chacune une admission et un échappement aux conduites d'admission principales et d'échappement de l'ensemble de l'échangeur de chaleur (1), et
qui sont reliées à des couches adjacentes (2) de manière démontable.
. 2. Echangeur de chaleur selon la revendication 1, caractérisé en ce que la hauteur (H) de chaque lamelle (9) est égale à un multiple de l'écartement (A) entre les lamelles.
3. Echangeur de chaleur selon la revendication 1 ou 2, caractérisé en ce qu'une surface de séparation (10) est fixée à chaque fois entre les couches (2), qui sépare le courant de milieu d'une couche du courant de milieu de la couche adjacente.
4. Echangeur de chaleur pour un échange air-air selon l'une des revendications précédentes, caractérisé en ce que les lamelles (9) pénètrent dans les deux chemins des milieux à températures différentes.
5. Echangeur de chaleur selon la revendication 4, caractérisé en ce que le courant de chaleur d'un milieu à l'autre ne se produit essentiellement que par les lamelles (9).
6. Echangeur de chaleur selon l'une des revendications précédentes, caractérisé en ce que des conduites conduisant à chaque couche (2) peuvent être fermées par des valves séparément des autres couches.
EP85111134A 1984-09-13 1985-09-04 Echangeur de chaleur gaz-liquide ou gaz-gaz Expired EP0177751B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85111134T ATE46032T1 (de) 1984-09-13 1985-09-04 Gas/fluessigkeit- oder gas/gas-waermeaustauscher.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3433598 1984-09-13
DE19843433598 DE3433598A1 (de) 1984-09-13 1984-09-13 Verfahren zur praktischen anwendung des gegenstromprinzips fuer waermeaustauscher, luft/wasser, luft/luft oder sinngemaess fuer andere medien

Publications (3)

Publication Number Publication Date
EP0177751A2 EP0177751A2 (fr) 1986-04-16
EP0177751A3 EP0177751A3 (en) 1986-10-22
EP0177751B1 true EP0177751B1 (fr) 1989-08-30

Family

ID=6245290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85111134A Expired EP0177751B1 (fr) 1984-09-13 1985-09-04 Echangeur de chaleur gaz-liquide ou gaz-gaz

Country Status (5)

Country Link
US (1) US4738309A (fr)
EP (1) EP0177751B1 (fr)
AT (1) ATE46032T1 (fr)
DD (1) DD239655A5 (fr)
DE (2) DE3433598A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100252502A1 (en) * 2007-11-12 2010-10-07 Agilent Technologies, Inc. Hplc-system with variable flow rate

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DK3120091T3 (da) 2014-03-21 2020-08-31 Veotec Americas LLC Fremgangsmåde til fremstilling af et luftseparatorsystem
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Publication number Priority date Publication date Assignee Title
US20100252502A1 (en) * 2007-11-12 2010-10-07 Agilent Technologies, Inc. Hplc-system with variable flow rate

Also Published As

Publication number Publication date
EP0177751A2 (fr) 1986-04-16
DD239655A5 (de) 1986-10-01
DE3572723D1 (en) 1989-10-05
EP0177751A3 (en) 1986-10-22
DE3433598A1 (de) 1986-03-20
ATE46032T1 (de) 1989-09-15
US4738309A (en) 1988-04-19

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