(19)
(11)EP 3 199 898 B1

(12)EUROPEAN PATENT SPECIFICATION

(45)Mention of the grant of the patent:
27.11.2019 Bulletin 2019/48

(21)Application number: 17153316.9

(22)Date of filing:  26.01.2017
(51)Int. Cl.: 
F28F 3/02  (2006.01)
F28D 9/00  (2006.01)
F28F 3/06  (2006.01)

(54)

HIGH PRESSURE COUNTERFLOW HEAT EXCHANGER

HOCHDRUCKGEGENSTROMWÄRMETAUSCHER

ÉCHANGEUR THERMIQUE À CONTRE-COURANT À HAUTE PRESSION


(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30)Priority: 27.01.2016 US 201615008074

(43)Date of publication of application:
02.08.2017 Bulletin 2017/31

(73)Proprietor: Hamilton Sundstrand Corporation
Charlotte, NC 28217 (US)

(72)Inventor:
  • SCHWALM, Gregory K.
    Avon, CT 06001 (US)

(74)Representative: Dehns 
St. Bride's House 10 Salisbury Square
London EC4Y 8JD
London EC4Y 8JD (GB)


(56)References cited: : 
FR-A1- 2 809 805
JP-A- H07 180 985
GB-A- 1 205 933
US-A- 2 875 986
  
      
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


    Description

    BACKGROUND OF THE INVENTION


    1. Field of the Invention



    [0001] The present disclosure relates to heat exchangers, and more particularly to counterflow heat exchangers.

    2. Description of Related Art



    [0002] Heat exchangers such as, for example, tube-shell heat exchangers, are typically used in aerospace turbine engines. These heat exchangers are used to transfer thermal energy between two fluids without direct contact between the two fluids. In particular, a primary fluid is typically directed through a fluid passageway of the heat exchanger, while a cooling or heating fluid is brought into external contact with the fluid passageway. In this manner, heat may be conducted through walls of the fluid passageway to thereby transfer thermal energy between the two fluids. One typical application of a heat exchanger is related to an engine and involves the cooling of air drawn into the engine and/or exhausted from the engine.

    [0003] Counterflow heat exchangers include layers of heat transfer elements containing hot and cold fluids in flow channels, the layers stacked one atop another in a core, with headers attached to the core, arranged such that the two fluid flows enter at different locations on the surface of the heat exchanger, with hot and cold fluids flowing in opposite directions over a substantial portion of the core. This portion of the core is referred to as the counterflow core section. A single hot and cold layer are separated, often by a parting sheet, in an assembly referred to as a plate. One or both of the layers in each plate contains a tent fin section that turns the flow at an angle relative to the direction of the flow in the counterflow fin section in the centre of the plate, such that when the plates are stacked together into a heat exchanger assembly, both hot and cold fluid flows are segregated, contained and channelled into and out of the heat exchanger at different locations on the outer surface of the heat exchanger. A prior art counterflow heat exchanger is disclosed in FR 2809805.

    [0004] This counterflow arrangement optimizes heat transfer for a given amount of heat transfer surface area. However, counterflow heat exchangers require a means to allow the flow to enter and exit the counterflow portion of the heat exchanger that also segregates the hot and cold fluids at the inlets and outlets of the heat exchanger; this is typically achieved with tent fin sections at an angle relative to the counterflow core fin section. To maintain practical duct sizes to channel fluid to and from the heat exchanger, a narrow tent section width is desirable; however, because a minimum distance between fins must be maintained throughout the core and tents for structural reasons, pressure drop through the tents of a counterflow heat exchanger is often undesirably high, resulting in an undesirably large heat exchanger volume and weight.

    [0005] Such conventional methods and systems have generally been considered satisfactory for their intended purpose. However, there is still a need in the art for improved heat exchangers with reduced pressure drop through the tent sections. The present disclosure provides a solution for this need.

    SUMMARY OF THE INVENTION



    [0006] A heat exchanger includes a plurality of heat exchanger plates in a stacked arrangement. At least two counterflow sections are positioned adjacent each other. The counterflow sections comprise an intermediate section of each heat exchanger plate. The heat exchanger plates configured to transfer heat between a first fluid and a second fluid flowing in an opposite directions from the first fluid through a respective heat exchanger plate. At least one tent section is positioned on each end of each counterflow section. The tent sections are configured to angle the flow direction of the first and second fluids in the tent sections relative to the flow direction in the counterflow sections. At least two inlet ports are configured to allow the first fluid to enter the heat exchanger and at least two outlet ports are configured to allow the first fluid to exit the heat exchanger. Each inlet port and outlet port of the first fluid is positioned through a respective tent. The inlet ports of the first fluid are separated by the wall and the outlet ports of the first fluid can be separated by the wall.

    [0007] At least two inlet ports can be configured to allow the second fluid to enter the heat exchanger and at least two outlet ports can be configured to allow the second fluid to exit the heat exchanger. Each inlet port and outlet port of the second fluid can be positioned through a respective tent. The inlet ports of the second fluid can be separated by the wall and the outlet ports of the second fluid can be separated by the wall.

    [0008] The inlet ports for the first fluid can be on an opposing end of the inlet ports for the second fluid. The outlet ports for the first fluid can be on an opposing end of the outlet ports for the second fluid. The first fluid can include a cooling fluid and the second fluid can be configured to transfer heat to the first fluid within the counterflow sections.

    [0009] The heat exchanger can include alternating heat exchange plates that include a cold layer with the first fluid flowing therethrough, the first fluid including a cooling fluid, the cold layer having inlet ports through respective tents at a first end and outlet ports through respective tents at a second end. The inlet ports of the first fluid can be aligned facing away from each other, such that the first fluid entering from each respective inlet port is separated through the counterflow section. The heat exchanger can include alternating heat exchange plates including a hot layer with the second fluid flowing therethrough, the second fluid configured to transfer heat from the cooling fluid, the hot layer having inlet ports through respective tents at a second end and outlet ports through respective tents at a first end. The inlet ports of the second fluid can be aligned facing away from each other, such that the second fluid entering from each respective inlet port is separated through the counterflow section.

    [0010] At one end of the counterflow sections each tent can include a header and, at an opposing end of the counterflow sections, two tents can share a single header separated by the wall. The heat exchanger can comprise four counterflow sections and a wall separating each counterflow section.

    [0011] A wall can be positioned between adjacent tent sections and adjacent counterflow sections configured to provide a load path at opposite ends of the heat exchanger to oppose forces due to pressure on the tent sections.

    [0012] These and other features of the systems and methods of the subject disclosure will become more readily apparent to those skilled in the art from the following detailed description of the preferred embodiments taken in conjunction with the drawings.

    BRIEF DESCRIPTION OF THE DRAWINGS



    [0013] So that those skilled in the art to which the subject disclosure appertains will readily understand how to make and use the devices and methods of the subject disclosure without undue experimentation, preferred embodiments thereof will be described in detail herein below with reference to certain figures, wherein:

    Fig. 1a is a cross-sectional view of a heat exchanger plate of the prior art, showing a hot layer with angled tent sections;

    Fig. 1b is a cross-sectional view of a heat exchanger plate of the prior art, showing a cold layer with angled tent sections;

    Fig. 2 is a perspective view of an exemplary embodiment of a heat exchanger constructed in accordance with the present disclosure, showing heat exchanger plates in a stacked arrangement with inlet and outlet ports;

    Fig. 3a is a cross-sectional view of a second layer plate of Fig. 2, having multiple angled tent sections on both ends of a cold layer of a counterflow core section;

    Fig. 3b is a cross-sectional view of a first layer plate of Fig. 2, having multiple angled tent sections on both ends of a hot layer of a counterflow core section; and

    Fig. 4 is an alternate embodiment of a single first or second hot and cold layer of a heat exchanger constructed in accordance with the present disclosure, with a tent section on each end of each core section.


    DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS



    [0014] Reference will now be made to the drawings wherein like reference numerals identify similar structural features or aspects of the subject disclosure. For purposes of explanation and illustration, and not limitation, a partial view of an exemplary embodiment of a counterflow heat exchanger in accordance with the disclosure is shown in Fig. 2 and is designated generally by reference character 100. Other embodiments of the counterflow heat exchanger in accordance with the disclosure, or aspects thereof, are provided in Figs. 3a to 4, as will be described.

    [0015] Counterflow heat exchanger designs require tents at an angle relative to the counterflow core section to allow the flow to enter and exit the counterflow core section of the heat exchanger. The hot and cold layers of prior art design are shown in Figs. 1a and 1b. Prior art counterflow heat exchangers include hot and cold layers 12, 14 attached to a parting sheet (not shown) that separates the hot and cold fluids. The heat exchanger is comprised of a cold layer including cold fins, a hot layer including hot fins and a parting sheet therebetween. This assembly is stacked one atop another to form a core with headers 16 attached to the core and arranged such that a cooling fluid enters at one end while a hot fluid enters on an opposing end, while allowing the hot and cooling fluids to flow in opposing directions to one another over a substantial portion of the core. This method of getting flow into and out of a counterflow heat exchanger optimizes heat transfer for a given amount of heat transfer surface area by ensuring that all fluid flow paths have essentially the same length, achieving essentially uniform flow through each flow passage of the heat exchanger. As shown in Figs. 1a and 1b the prior art consists of a single counterflow section 20 with one tent section 24 at each end of the counterflow section 20. The tent sections 24 are comprised of multiple tent flow channels.

    [0016] With reference to Figs. 2 to 3b, the present disclosure includes a heat exchanger 100 having smaller diameter headers 116 containing the highest pressure fluid to minimize header thickness (not shown), reducing heat exchanger weight and simplifying the design from a structural standpoint. High pressure heat exchangers often must have a minimum number of fins (not shown) per unit flow width to contain the high pressures, and this minimum fin density must exist throughout the heat exchanger, i.e., in both the core 117 and tent sections 124 of the heat exchanger.

    [0017] To maintain practical duct sizes to channel fluid to and from the heat exchanger 100, a narrow tent section width 125 is desirable; however, because a minimum distance between fins (not shown) must be maintained throughout the core 117 and tent sections 124 for structural reasons, pressure drop through the tent sections 24 of prior art counterflow heat exchangers 10 is often high, resulting in an undesirably large heat exchanger volume and weight. The reduced flow length of multiple tent sections 124 in a heat exchanger plate 111 as well as the reduction in the amount of total fluid flow passing through each tent section 124 results in reduced pressure drop in the tent sections 124 relative to the pressure drop in the tent sections 24 of prior art heat exchangers 10.

    [0018] With continued reference to Fig. 2 a perspective view of the heat exchanger 100 of the present disclosure is shown. The heat exchanger 100 includes a plurality of heat exchanger plates 111 in a stacked arrangement. Each heat exchanger plate 111 includes a first layer 114 (i.e, a cold layer) (see Fig. 3a) with cold fluid flowing therethrough and a second layer 112 (i.e., a hot layer) (see Fig. 3b) with a hot fluid flowing therethrough. The plates 112, 14 are stacked to form a core 117 of the heat exchanger 100. The hot and cold layers are physically separated by a parting sheet (not shown). The fluid flow passages in the hot and cold layers 112, 114 are arranged such that the hot fluid flowing through the hot layer is configured to exchange heat between the cooling fluid flowing through the cold layer. As shown in Figs. 3a to 3b, counterflow sections 120 comprise an intermediate portion 121 of heat exchange plates 111 where the heat exchange occurs. In contrast to the prior art design shown in Figs. 1a and 1b, each layer 112, 114 of the heat exchanger 100 includes multiple counterflow sections 120 positioned adjacent each other with multiple tent sections 124 on each end. The tents sections 124 of heat exchanger 100 are relatively shorter in length than those shown in prior art 10 which reduces pressure drop for a given rate of fluid flow through the tent sections 124. The tent sections 124 are configured to angle 131 the flow direction of the first and second fluids in the tent sections 124 relative to the flow direction in the counterflow sections 120. With continued references to Figs. 3a and 3b, on one end 140 of each layer 112, 114 the tent sections 124 share a header 116 and on an opposing end 142 each tent section 124 has an individual header section 16. When the plates 111 are stacked into a core 117, the individual headers 116 combine to form continuous flow paths to channel hot and cooling fluid to and from the heat exchanger core 117. Two tent sections 124 sharing a single header 116 reduces the number of headers 116 needed and therefore reduces weight and cost of the heat exchanger 100 relative to the prior art. A solid wall 130 is positioned between the tent sections 124 and continues adjacent the counterflow core sections 120 for each layer 112, 114.

    [0019] Each of the layers 112, 114 includes inlet ports 132a, 132b within respective tent sections 124 configured to allow the respective fluid to enter the counterflow section 120 and two outlet ports 134a, 134b within respective tent sections 124 configured to allow the respective fluid to exit the counterflow section 120. As shown in Fig. 3a, the cold layer 114 includes two inlet ports 132a and 132b at one end 142 (i.e. a first end) where the inlet ports 132a, 132b are positioned along a surface of the respective tent 124. The cooling fluid enters and flows through the counterflow section 120 and then exits outlet ports 134a and 134b at the opposing end 140 (i.e. a second end) along a surface of the respective tent 124. As shown in Fig. 3b, the hot layer 112 includes two inlet ports 132a and 132b through respective tents 124 and header 116 at the second end 140. The hot fluid flows through the counterflow section 120, in the opposite direction of the cold fluid, and exits outlet ports 134a and 134b at the first end 142 through respective tents 124 and headers 116. It will be understood by those skilled in the art that while the flow directions are shown in a specific configuration in Figs. 3a, 3b and 4, the flow directions can be changed between the hot and cold layers without departing from the scope of the present disclosure.

    [0020] The inlet and outlet ports 132a, 132b, 134a, 134b are aligned facing away from each other and directing the respective fluid into the respective counterflow sections 120. The wall 130 is continuous along the entire counterflow sections 120 (in the direction of the stacked layers) to hold the high pressure headers 116 on the heat exchanger 100. The wall 130 provides a load path by allowing the pressure forces acting on high pressure headers 116 on one end (e.g., second end 140) to react against the forces on high pressure headers 116 on the other end (e.g., first end 142). This allows for the hoop stress to be met with reduced thickness and weight.

    [0021] Fig. 4 illustrates a further embodiment of a counterflow heat exchanger. Fig. 4 shows a hot layer 212 but it will be understood that a cold layer will include similar structure in keeping with the disclosure. As shown in Fig. 4, four counterflow sections 220 are positioned adjacent each other. With the combination of additional counterflow sections 220, an additional header 216 combines two tents 224. Three walls 230 are positioned between each of the counterflow sections 220. As the number of counterflow sections increases, the tents 124 of heat exchanger decrease in length and are relatively shorter in length than as in the embodiment of Figs. 3a and 3b. As described above, this also reduces flow through the tents which reduces the pressure drop of the tents relative to the pressure drop of the tents of a prior art device with only one tent section on each end of the counterflow section.

    [0022] The methods and systems of the present disclosure, as described above and shown in the drawings, provide for counterflow heat exchanger with superior properties including reducing tent length and fin density. While the apparatus and methods of the subject disclosure have been shown and described with reference to preferred embodiments, those skilled in the art will readily appreciate that changes and/or modifications may be made thereto without departing from the scope of the invention as defined in the claims.


    Claims

    1. A heat exchanger (100), comprising:

    a plurality of heat exchanger plates (111) in a stacked arrangement;

    at least two counterflow sections (120) positioned adjacent each other, the counterflow sections (120) comprising an intermediate section (121) of each heat exchanger plate (111), the heat exchanger plates (111) configured to transfer heat between a first fluid and a second fluid flowing in opposite directions from each other through a respective heat exchanger plate;

    at least one tent section (124) on each end of each counterflow section (120), the tent sections (124) configured to angle the flow direction of the first and second fluids in the tent sections (124) relative to the flow direction in the counterflow sections (120); and

    at least two inlet ports (132a, 132b) configured to allow the first fluid to enter the heat exchanger (100) and at least two outlet ports (134a, 134b) configured to allow the first fluid to exit the heat exchanger (100), each inlet port (132a, 132b) and outlet port (134a, 134b) positioned through a respective tent section (124);

    characterized in that the inlet ports (132a, 132b) of the first fluid are separated by a wall (130) and wherein the outlet ports (134a, 134b) of the first fluid are separated by a wall (130).


     
    2. The heat exchanger of claim 1, further comprising at least two inlet ports (132a, 132b) configured to allow the second fluid to enter the heat exchanger (100) and at least two outlet ports (134a, 134b) configured to allow the second fluid to exit the heat exchanger (100), each inlet port (132a, 132b) and outlet port (134a, 134b) positioned through a respective tent (124).
     
    3. The heat exchanger of claim 2, wherein the inlet ports (132a, 132b) of the second fluid are separated by a wall (130) and wherein the outlet ports (134a, 134b) of the second fluid are separated by a wall (130).
     
    4. The heat exchanger of claim 3, wherein the inlet ports (132a, 132b) for the first fluid are on an opposing end of the inlet ports (132a, 132b) for the second fluid and wherein the outlet ports (134a, 134b) for the first fluid are on an opposing end of the outlet ports (134a, 134b) for the second fluid.
     
    5. The heat exchanger of any preceding claim, wherein the first fluid includes a cooling fluid and the second fluid is configured to transfer heat to the first fluid within the counterflow sections (120).
     
    6. The heat exchanger of claim 5, wherein the heat exchanger plates (111) are comprised of a first layer (114) for the first fluid and a second layer (112) for the second fluid to flow therethrough, the first and second layers (114, 112) being positioned adjacent within the stacked arrangement of heat exchanger plates (111).
     
    7. The heat exchange of any preceding claim, wherein alternating heat exchange plates (111) include a cold layer (114) with the first fluid flowing therethrough, the first fluid including a cooling fluid, the cold layer (114) having inlet ports (132a, 132b) through respective tent sections (124) at a first end and outlet ports (134a, 134b) through respective tent sections (124) at a second end.
     
    8. The heat exchanger of claim 7, wherein the inlet ports (132a, 132b) of the first fluid are aligned facing away from each other, such that the first fluid entering from each respective inlet port (132a, 132b) is separated through the counterflow section (120).
     
    9. The heat exchange of claim 7, wherein alternating heat exchange plates (111) include a hot layer (112) with the second fluid flowing therethrough, the second fluid configured to transfer heat from the cooling fluid, the hot layer (112) having inlet ports (132a, 132b) through respective tent sections (124) at a second end and outlet ports (134a, 134b) through respective tent sections (124) at a first end.
     
    10. The heat exchanger of claim 9, wherein the inlet ports (132a, 132b) of the second fluid are aligned facing away from each other, such that the second fluid entering from each respective inlet port (132a, 132b) is separated through the counterflow section (120).
     
    11. The heat exchanger of any preceding claim, wherein at one end of the counterflow sections (120) each tent section (124) includes a header (116) and wherein at an opposing end of the counterflow sections (120) two tent sections (124) share a single header (116) separated by a wall (130).
     
    12. The heat exchanger of any preceding claim, comprising four counterflow sections (220) and a wall (130) separating each counterflow section (220).
     
    13. The heat exchanger of any preceding claim, further comprising a wall (130) positioned between adjacent tent sections (124) and adjacent counterflow sections (120) configured to provide a load path at opposite ends of the heat exchanger (100) to oppose forces due to pressure on the tent sections (124).
     


    Ansprüche

    1. Wärmetauscher (100), umfassend:

    eine Vielzahl an Wärmetauscherplatten (111) in einer gestapelten Anordnung;

    mindestens zwei Gegenstromabschnitte (120), die benachbart positioniert sind, wobei die Gegenstromabschnitte (120) einen Zwischenabschnitt (121) von jeder Wärmetauscherplatte (111) umfassen, wobei die Wärmetauscherplatten (111) konfiguriert sind, um Wärme zwischen einem ersten Fluid und einem zweiten Fluid, die in entgegensetzte Richtungen fließen, durch eine jeweilige Wärmetauscherplatte zu übertragen;

    mindestens einen Zeltabschnitt (124) an jedem Ende jedes Gegenstromabschnitts (120), wobei die Zeltabschnitte (124) konfiguriert sind, um die Strömungsrichtung des ersten und des zweiten Fluids in den Zeltabschnitten (124) relativ zu der Strömungsrichtung in den Gegenstromabschnitten (120) zu verändern; und

    mindestens zwei Einlassöffnungen (132a, 132b), die konfiguriert sind, um dem ersten Fluid den Zugang zu dem Wärmetauscher (100) zu ermöglichen, und mindestens zwei Auslassöffnungen (134a, 134b), die konfiguriert sind, um dem ersten Fluid das Verlassen des Wärmetauschers (100) zu ermöglichen, wobei jede Einlassöffnung (132a, 132b) und Auslassöffnung (134a, 134b) durch einen jeweiligen Zeltabschnitt (124) angeordnet ist;

    gekennzeichnet dadurch, dass die Einlassöffnungen (132a, 132b) des ersten Fluids durch eine Wand (130) getrennt sind und dadurch, dass die Auslassöffnungen (134a, 134b) des ersten Fluids durch eine Wand (130) getrennt sind.


     
    2. Wärmetauscher nach Anspruch 1, ferner umfassend mindestens zwei Einlassöffnungen (132a, 132b), die konfiguriert sind, um dem zweiten Fluid den Zugang zu dem Wärmetauscher (100) zu ermöglichen, und zwei Auslassöffnungen (134a, 134b), die konfiguriert sind, um dem zweiten Fluid das Verlassen des Wärmetauschers (100) zu ermöglichen, wobei jede Einlassöffnung (132a, 132b) und Auslassöffnung (134a, 134b) durch ein jeweiliges Zelt (124) angeordnet ist.
     
    3. Wärmetauscher nach Anspruch 2, wobei die Einlassöffnungen (132a, 132b) des zweiten Fluids durch eine Wand (130) getrennt sind und wobei die Auslassöffnungen (134a, 134b) des zweiten Fluids durch eine Wand (130) getrennt sind.
     
    4. Wärmetauscher nach Anspruch 3, wobei die Einlassöffnungen (132a, 132b) für das erste Fluid am gegenüberliegenden Ende der Einlassöffnungen (132a, 132b) für das zweite Fluid angebracht sind und wobei die Auslassöffnungen (134a, 134b) für das erste Fluid am gegenüberliegenden Ende der Auslassöffnungen (134a, 134b) für das zweite Fluid angebracht sind.
     
    5. Wärmetauscher nach einem der vorhergehenden Ansprüche, wobei das erste Fluid ein Kühlmittel beinhaltet und das zweite Fluid konfiguriert ist, innerhalb der Gegenstromabschnitte (120) Wärme an das erste Fluid zu übertragen.
     
    6. Wärmetauscher nach Anspruch 5, wobei die Wärmetauscherplatten (111) aus einer ersten Schicht (114) für den Durchfluss des ersten Fluids und einer zweiten Schicht (112) für den Durchfluss des zweiten Fluids besteht, wobei die erste und zweite Schicht (114, 112) innerhalb der gestapelten Anordnung der Wärmetauscherplatten (111) benachbart positioniert sind.
     
    7. Wärmetauscher nach einem der vorhergehenden Ansprüche, wobei abwechselnde Wärmetauscherplatten (111) eine Kaltschicht (114) beinhalten, durch die das erste Fluid fließt, wobei das erste Fluid ein Kühlmittel beinhaltet, wobei die Kaltschicht (114) Einlassöffnungen (132a, 132b) durch jeweilige Zeltabschnitte (124) an einem ersten Ende und Auslassöffnungen (134a, 134b) durch jeweilige Zeltabschnitte (124) an einem zweiten Ende aufweist.
     
    8. Wärmetauscher nach Anspruch 7, wobei die Einlassöffnungen (132a, 132b) des ersten Fluids voneinander abgewandt ausgerichtet sind, sodass das erste Fluid bei Zugang durch jede jeweilige Einlassöffnung (132a, 132b) durch den Gegenstromabschnitt (120) getrennt wird.
     
    9. Wärmetauscher nach Anspruch 7, wobei abwechselnde Wärmetauscherplatten (111) eine Heißschicht (112) beinhalten, durch die das zweite Fluid fließt, wobei das zweite Fluid konfiguriert ist, um Wärme aus dem Kühlmittel zu übertragen, wobei die Heißschicht (112) Einlassöffnungen (132a, 132b) durch jeweilige Zeltabschnitte (124) an einem zweiten Ende und Auslassöffnungen (134a, 134b) durch jeweilige Zeltabschnitte (124) an einem ersten Ende aufweist.
     
    10. Wärmetauscher nach Anspruch 9, wobei die Einlassöffnungen (132a, 132b) des zweiten Fluids voneinander abgewandt ausgerichtet sind, sodass das zweite Fluid bei Zugang durch jede jeweilige Einlassöffnung (132a, 132b) durch den Gegenstromabschnitt (120) getrennt wird.
     
    11. Wärmetauscher nach einem der vorhergehenden Ansprüche, wobei an einem Ende der Gegenstromabschnitte (120) jeder Zeltabschnitt (124) ein Kopfteil (116) beinhaltet und wobei sich an einem gegenüberliegenden Ende der Gegenstromabschnitte (120) zwei Zeltabschnitte (124) ein Kopfteil (116) durch eine Wand (130) getrennt teilen.
     
    12. Wärmetauscher nach einem der vorhergehenden Ansprüche, umfassend vier Gegenstromabschnitte (220) und eine Wand (130), die jeden Gegenstromabschnitt (220) trennt.
     
    13. Wärmetauscher nach einem der vorhergehenden Ansprüche, ferner umfassend eine Wand (130), die zwischen benachbarten Zeltabschnitten (124) angeordnet ist, und benachbarte Gegenstromabschnitte (120), die konfiguriert sind, um einen Lastpfad an gegenüberliegenden Enden des Wärmetauschers (100) bereitzustellen, um durch Druck auf die Zeltabschnitte (124) entstandenen Kräften entgegenzuwirken.
     


    Revendications

    1. Échangeur thermique (100), comprenant :

    une pluralité de plaques d'échange thermique (111) dans un agencement empilé ;

    au moins deux sections de contre-courant (120) positionnées de manière adjacente l'une à l'autre, les sections de contre-courant (120) comprenant une section intermédiaire (121) de chaque plaque d'échange thermique (111), les plaques d'échange thermique (111) étant configurées pour transférer de la chaleur entre un premier fluide et un second fluide s'écoulant dans des directions opposées l'une de l'autre à travers une plaque d'échange thermique respective ;

    au moins une section de tente (124) sur chaque extrémité de chaque section de contre-courant (120), les sections de tente (124) étant configurées pour incliner la direction d'écoulement des premier et second fluides dans les sections de tente (124) par rapport à la direction d'écoulement dans les sections de contre-courant (120) ; et

    au moins deux orifices d'entrée (132a, 132b) configurés pour permettre au premier fluide d'entrer dans l'échangeur thermique (100) et au moins deux orifices de sortie (134a, 134b) configurés pour permettre au premier fluide de sortir de l'échangeur thermique (100), chaque orifice d'entrée (132a, 132b) et orifice de sortie (134a, 134b) étant positionné à travers une section de tente (124) respective ;

    caractérisé en ce que les orifices d'entrée (132a, 132b) du premier fluide sont séparés par une paroi (130) et dans lequel les orifices de sortie (134a, 134b) du premier fluide sont séparés par une paroi (130).


     
    2. Échangeur thermique selon la revendication 1, comprenant en outre au moins deux orifices d'entrée (132a, 132b) configurés pour permettre au second fluide d'entrer dans l'échangeur thermique (100) et au moins deux orifices de sortie (134a, 134b) configurés pour permettre au second fluide de sortir de l'échangeur thermique (100), chaque orifice d'entrée (132a, 132b) et orifice de sortie (134a, 134b) étant positionnés à travers une tente (124) respective.
     
    3. Échangeur thermique selon la revendication 2, dans lequel les orifices d'entrée (132a, 132b) du second fluide sont séparés par une paroi (130) et dans lequel les orifices de sortie (134a, 134b) du second fluide sont séparés par une paroi (130).
     
    4. Échangeur thermique selon la revendication 3, dans lequel les orifices d'entrée (132a, 132b) pour le premier fluide sont sur une extrémité opposée des orifices d'entrée (132a, 132b) pour le second fluide et dans lequel les orifices de sortie (134a, 134b) pour le premier fluide sont sur une extrémité opposée des orifices de sortie (134a, 134b) pour le second fluide.
     
    5. Échangeur thermique selon une quelconque revendication précédente, dans lequel le premier fluide inclut un fluide de refroidissement et le second fluide est configuré pour transférer de la chaleur au premier fluide au sein des sections de contre-courant (120).
     
    6. Échangeur thermique selon la revendication 5, dans lequel les plaques d'échange thermique (111) sont composées d'une première couche (114) pour le premier fluide et d'une seconde couche (112) pour le second fluide devant passer à travers, les première et seconde couche (114, 112) étant positionnées de manière adjacente au sein de l'agencement empilé de plaques d'échange thermique (111).
     
    7. Échangeur thermique selon une quelconque revendication précédente, dans lequel des plaques d'échange thermique (111) alternatives incluent une couche froide (114) à travers laquelle s'écoule le premier fluide, le premier fluide incluant un fluide de refroidissement, la couche froide (114) ayant des orifices d'entrée (132a, 132b) à travers des sections de tente (124) respectives à une première extrémité et des orifices de sortie (134a, 134b) à travers des sections de tente (124) respectives à une seconde extrémité.
     
    8. Échangeur thermique selon la revendication 7, dans lequel les orifices d'entrée (132a, 132b) du premier fluide sont alignés orientés à l'opposé l'un de l'autre, de telle sorte que le premier fluide entrant à partir de chaque orifice d'entrée (132a, 132b) respectif est séparé à travers la section de contre-courant (120).
     
    9. Échangeur thermique selon la revendication 7, dans lequel des plaques d'échange thermique (111) alternatives incluent une couche chaude (112) à travers laquelle s'écoule le second fluide, le second fluide étant configuré pour transférer de la chaleur à partir du fluide de refroidissement, la couche chaude (112) ayant des orifices d'entrée (132a, 132b) à travers des sections de tente (124) respectives à une seconde extrémité et des orifices de sortie (134a, 134b) à travers des sections de tente (124) respectives à une première extrémité.
     
    10. Échangeur thermique selon la revendication 9, dans lequel les orifices d'entrée (132a, 132b) du second fluide sont alignés orientés à l'opposé l'un de l'autre, de telle sorte que le second fluide entrant à partir de chaque orifice d'entrée (132a, 132b) respectif est séparé à travers la section de contre-courant (120).
     
    11. Échangeur thermique selon une quelconque revendication précédente, dans lequel à une extrémité des sections de contre-courant (120), chaque section de tente (124) inclut un collecteur (116) et dans lequel à une extrémité opposée des sections de contre-courant (120), deux sections de tente (124) partagent un seul collecteur (116) séparé par une paroi (130).
     
    12. Échangeur thermique selon une quelconque revendication précédente, comprenant quatre sections de contre-courant (220) et une paroi (130) séparant chaque section de contre-courant (220) .
     
    13. Échangeur thermique selon une quelconque revendication précédente, comprenant en outre une paroi (130) positionnée entre des sections de tente (124) adjacentes et des sections de contre-courant (120) adjacentes configurée pour fournir un chemin de charge aux extrémités opposées de l'échangeur thermique ((100) pour s'opposer à des forces dues à la pression sur les sections de tente (124).
     




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    REFERENCES CITED IN THE DESCRIPTION



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    Patent documents cited in the description