EP3176532B1 - Wärmetauscher - Google Patents

Wärmetauscher Download PDF

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Publication number
EP3176532B1
EP3176532B1 EP15827887.9A EP15827887A EP3176532B1 EP 3176532 B1 EP3176532 B1 EP 3176532B1 EP 15827887 A EP15827887 A EP 15827887A EP 3176532 B1 EP3176532 B1 EP 3176532B1
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EP
European Patent Office
Prior art keywords
fluid
members
introduction hole
introduction
heat exchanger
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Active
Application number
EP15827887.9A
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English (en)
French (fr)
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EP3176532A4 (de
EP3176532A1 (de
Inventor
Masayuki Moriyama
Yuusaku Ishimine
Kazuhiko FUJIO
Keiichi Sekiguchi
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Kyocera Corp
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Kyocera Corp
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Publication of EP3176532A4 publication Critical patent/EP3176532A4/de
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/04—Constructions of heat-exchange apparatus characterised by the selection of particular materials of ceramic; of concrete; of natural stone
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/08—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • 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
    • F28F9/02—Header boxes; End plates

Definitions

  • the present invention relates to a heat exchanger.
  • heat exchangers have been used in heat exchange systems for cooling, heating, and the like.
  • a heat exchanger formed by a plurality of substrates that are laminated.
  • Each of the substrates has a plurality of strips arranged substantially parallel side by side as well as slits between the strips, and is provided with recesses that continue in a longitudinal direction on several surfaces of the strips.
  • the strips of adjacent substrates are interconnected to define tubes, the recesses define tube internal channels, and the slits define tube external channels.
  • Patent Document 1 Japanese Unexamined Patent Application No. 2005-300062A
  • WO 2014/064334 A1 discloses a heat exchanger having the features of the preamble of claim 1, for an energy conversion process formed of ceramic plates and ceramic ducts, wherein the ceramic material may allow heating a working gas to a high temperature, which in turn may increase the efficiency of the energy conversion process.
  • An object of the present invention is therefore to provide a heat exchanger having a superior heat exchange efficiency.
  • the present invention provides a heat exchanger according to independent claim 1.
  • the heat exchanger according to the present invention has a superior heat exchange efficiency.
  • FIG. 1 is a perspective view and FIG. 2 is a cross-sectional view illustrating an example of a heat exchanger according to the present embodiment.
  • FIG. 3 is a perspective view illustrating an example of a first member constituting the heat exchanger according to the present embodiment
  • FIG. 4 is a perspective view illustrating an example of a second member and a third member that constitute the heat exchanger according to the present embodiment.
  • FIG. 5 is a partial cross-sectional view of the heat exchanger according to the present embodiment
  • FIGS. 7 is an enlarged partial cross-sectional view of the second member side of the heat exchanger according to the present embodiment.
  • a heat exchanger 1 of the example illustrated in FIG. 1 includes a plurality of first members 2.
  • Each of the first members 2 includes walls provided with introduction holes 5 on a first end side and discharge holes 6 on a second end side. Spaces connecting the introduction holes 5 and the discharge holes 6 serve as first channels 8 through which a first fluid flows.
  • the heat exchanger 1 further includes second members 3 that communicate with the introduction holes 5 at the first end side of the plurality of first members 2 to introduce the first fluid to the first members 2.
  • the heat exchanger 1 further includes third members 4 that communicate with the discharge holes 6 at the second end side of the plurality of first members 2 to discharge the first fluid that has flowed through the first members 2.
  • first end side here can also be expressed as an upstream side of the first fluid
  • second end side can also be expressed as a downstream side of the first fluid
  • the heat exchanger 1 that includes three first members 2 is illustrated in FIGS. 1 and 2 as an example, the heat exchanger 1 is not limited thereto and may include two or more first members 2.
  • a fluid, a vapor, or the like may be used as the first fluid and the second fluid, in accordance with the objective.
  • the first fluid may be a fluid such as water
  • the second fluid may be a vapor such as gas.
  • the first members 2, the second members 3, and the third members 4 that constitute the heat exchanger 1 according to the present embodiment are formed from a ceramic. With these members thus formed from a ceramic, the heat exchanger 1 has superior thermal resistance and corrosion resistance.
  • the types of ceramics used can be selected as appropriate in accordance with the characteristics of the fluid. Examples include an oxide ceramic, such as an alumina ceramic or a cordierite ceramic, and a non-oxide ceramic, such as a silicon nitride ceramic, an aluminum nitride ceramic, or a silicon carbide ceramic.
  • the heat exchange efficiency of the heat exchanger 1 can be increased due to a high thermal conductivity. Further, when these members are formed from an alumina ceramic having an alumina content exceeding 50 mass% with respect to all components that constitute the ceramic, the raw material cost decreases and machineability increases, thus the heat exchanger 1 can be manufactured at a cost lower than that when other materials are used.
  • FIGS. 1 and 2 illustrate an example in which the heat exchanger 1 includes a flange portion 16 at the lowest level.
  • the flange portion 16 includes an introduction portion 11 and a discharge portion 12 for the first fluid.
  • the path of the first fluid in this example will now be described. First, the first fluid enters the heat exchanger 1 from the introduction portion 11 of the flange portion 16, flows through an introduction channel 7, passes through the introduction holes 5 and the first channels 8 of the first members 2, flows through the discharge holes 6, and is then discharged from the discharge portion 12 via a discharge channel 9.
  • the heat exchanger 1 of the present embodiment can perform heat exchange efficiently with the second fluid that flows through the second channel 10 while the first fluid flows through the first channel 8, in particular.
  • the flange portion 16 is not mandatory in a configuration of the heat exchanger 1.
  • the opening of the second member 3 positioned at the lowest level in FIGS. 1 and 2 may serve as the introduction port of the first fluid, and the opening of the third member 4 positioned at the lowest level may serve as the discharge port of the first fluid.
  • the first fluid and the second fluid can be disposed so as to form a cross flow, or disposed so as to flow in the same direction.
  • a partition portion capable of branching the first fluid may be provided in the first member 2.
  • a contact surface area with the first fluid is increased.
  • the heat exchange efficiency can be improved.
  • the first member 2 includes the introduction hole 5 that communicates with the second member 3, and the discharge hole 6 that communicates with the third member 4, as illustrated in FIG. 3 .
  • FIG. 3 illustrates an example in which the introduction hole 5 and the discharge hole 6 are provided in mutually corresponding positions of an upper wall and a lower wall, forming through-holes
  • the first member 2 of this configuration corresponds to a first member 2b and a first member 2c in FIGS. 1 and 2 .
  • the first member 2a disposed on the highest level does not require the first fluid to flow further upward on the upstream side, and the first fluid never flows from above on the downstream side.
  • the introduction hole 5 and the discharge hole 6 are included only on the lower wall of the walls constituting the first member 2a.
  • the second member 3 and the third member 4 are, for example, cylindrical members, as illustrated in FIG. 4 .
  • a cross section of each of the second members 3 and the third members 4 orthogonal to the direction in which the first fluid flows is not limited to a circular shape.
  • the cross section may be an elliptical shape, a polygonal shape such as a triangular shape or a quadrilateral shape, or the like.
  • the heat exchanger 1 of the present embodiment has a superior heat exchange efficiency.
  • the one adjacent pair of the introduction holes 5, are an introduction hole 5a and an introduction hole 5b, the introduction hole 5b and an introduction hole 5c, the introduction hole 5c and an introduction hole 5d, or the introduction hole 5d and an introduction hole 5e, and are thus two of the introduction holes 5 adjacently positioned in the direction in which the first fluid flows.
  • the upstream-side introduction hole is the introduction hole 5 positioned upstream in the direction in which the first fluid flows
  • the downstream-side introduction hole is the introduction hole 5 positioned downstream in the direction in which the first fluid flows.
  • the introduction hole 5b is the downstream-side introduction hole
  • the introduction hole 5c is the upstream-side introduction hole
  • the introduction hole 5c is the downstream-side introduction hole
  • the introduction hole 5d is the upstream-side introduction hole.
  • the same introduction hole 5 may be an upstream-side introduction hole as well as a downstream-side introduction hole, depending on the combination.
  • Examples in which the one adjacent pair of the introduction holes 5 satisfy the configuration described above include when the adjacent pair of the introduction holes 5 have the same opening shape and the opening region of the upstream-side introduction hole is larger than the opening region of the downstream-side introduction hole, and when the opening shapes of the adjacent pair of the introduction holes 5 are different. From the viewpoint of not delaying the flow rate of the fluid more than necessary, however, a case where the adjacent pair of the introduction holes 5 have the same opening shape, but the centers of the pair of the introduction holes 5 are shifted in a direction that intersects the direction of flow when viewed in the direction in which the first fluid flows is preferred.
  • the opening shape of the introduction hole 5 is not limited to a circular shape as illustrated in FIG. 3 , and may be an elliptical shape, a polygonal shape such as a triangular shape or a quadrilateral shape, or the like.
  • FIG. 5 illustrates an example in which the first member 2b includes three walls, the number of walls that constitute the first member 2b is not limited thereto, and may be three or greater.
  • the introduction hole 5b is the downstream-side introduction hole and the introduction hole 5c is the upstream-side introduction hole.
  • a region that overlaps with the opening region of the upstream-side introduction hole exists in the wall including the downstream-side introduction hole, when viewed in the direction in which the first fluid flows refers to when the opening region of the introduction hole 5c (which is the upstream-side introduction hole) is moved in parallel in the direction in which the first fluid flows to a wall 13b that includes the downstream-side introduction hole, and when a section that overlaps with the opening region of the upstream-side introduction hole exists in the wall 13b.
  • a portion of the first fluid that has passed through a second member 3b and the introduction hole 5b when viewed in the direction in which the first fluid flows, collides with the wall 13b where the region that overlaps with the opening region of the introduction hole 5c exists, forming turbulence regions on the inner face of a second member 3a as well as on the inner face of the first member 2b, which are adjacent to the section where the colliding occurred. Then, in such a turbulence region, the number of opportunities for contact with the first fluid increases, thereby improving the heat exchange efficiency of the heat exchanger 1.
  • the same effect as described above can be achieved with the other combinations as well as long as, in the adjacent pair of the introduction holes 5, a region that overlaps with the opening region of the upstream-side introduction hole exists in the wall that includes the downstream-side introduction hole, when viewed in the direction in which the first fluid flows.
  • the overlapping region described above has a surface area equivalent to at least 10% the surface area of the opening region of the upstream-side introduction hole.
  • the adjacent pair of the introduction holes 5 the same effect as described above can be achieved with the adjacent pair of the discharge holes 6 as well as long as, in at least one adjacent pair of the discharge holes 6, a region that overlaps with the opening region of the upstream-side discharge hole exists in the wall that includes the downstream-side discharge hole, when viewed in the direction in which the first fluid flows.
  • the at least one of the plurality of first members 2 includes a chamfered area on a center section thereof, on an edge of the introduction hole 5 positioned on the downstream side of the first fluid, the edge being on an interior side of the first member 2.
  • the first fluid flows from the lower introduction hole 5c into the first member 2b, and branches and flows to the first channel 8 extending from a first end side to a second end side, and to the upper introduction hole 5b.
  • a chamfered portion 14 is provided to the center section of the first member 2b (the right side in FIG. 6 ), on the edge of the introduction hole 5b of the wall 13b that constitutes the first member 2b,and thus the first fluid can be smoothly branched.
  • the chamfered portion 14 serving as a chamfered area is a section in which a corner portion serving as the edge is cut to form a plane.
  • the first fluid can be smoothly branched by providing the chamfered portion 14 to the center section of the first member 2b, on the edge of the introduction hole 5b positioned on the downstream side of the first fluid, the edge being on the interior side of the first member 2b, a configuration in which turbulence occurs further on the upstream side of the first fluid than the chamfered portion 14 is preferred.
  • the first fluid in which a turbulence has occurred is smoothly branched and the turbulence region is expanded, and thus, the heat exchange efficiency can be further improved.
  • At least one of the plurality of first members 2 includes a chamfered area on the center section thereof, on the edge of the discharge hole 6 positioned on the downstream side of the first fluid, the edge being on the interior side of the first member 2.
  • At the least one of the plurality of first members 2 includes a protruding area at a position on the center section thereof, in an area around the edge of the introduction hole 5 positioned on the downstream side of the first fluid, the edge being on an interior side of the first member 2.
  • this protruding area is described as a protruding portion 15.
  • the first fluid flows from the lower introduction hole 5c into the first member 2b, and branches and flows to the first channel 8 extending from the first end side to the second end side, and to the upper introduction hole 5b.
  • the protruding portion 15 is provided to a position on the center section of the first member 2b, in an area around the edge of the introduction hole 5b of the wall 13b that constitutes the first member 2b, turbulence can be generated even when the first fluid branches to the first channel 8, and thus, the heat exchange efficiency can be further improved.
  • the protruding portion 15 is an area of this wall 13b that protrudes at least 1 ⁇ m on the first channel 8 side of this reference plane.
  • the at least one of the plurality of first members 2 includes the protruding portion 15 at a position on the center section thereof, in an area around the edge of the introduction hole 5 positioned on the downstream side of the first fluid, the edge being on the interior side of the first member 2, turbulence occurs from a merge with a main flow that flows through the first channel 8 and a merge with the first fluid that has flowed from the upper discharge hole 6 when the first fluid that has flowed through the first channel 8 passes over the protruding portion 15, thereby improving the heat exchange efficiency.
  • the inner face of the introduction hole 5 adjacent to the second member 3 on the downstream side of first fluid has an arithmetic mean roughness Ra2 that is greater than an arithmetic mean roughness Ra1 of the inner face of the second member 3.
  • the introduction hole 5c is preferably included in the turbulence region that occurs due to the existence of the region that overlaps with the opening region of the upstream-side introduction hole in the wall that includes the downstream-side introduction hole.
  • an arithmetic mean roughness Ra4 on the inner face of the discharge hole 6 on the downstream side of the first fluid adjacent to the third member 4 is greater than an arithmetic mean roughness Ra3 of the inner face of the third member 4 in the discharge channel 9 as well, turbulence occurs when the first fluid flows from the interior of the third member 4 into the discharge hole 6, and thus, the heat exchange efficiency can be improved.
  • the arithmetic mean roughness values Ra1 to R4 described above may be found by measurement using a contact-type surface roughness gauge in accordance with JIS B 0601 (2013).
  • measurement conditions include, for example, a measurement length of 2.5 mm, a cutoff value of 0.8 mm, and a stylus scanning speed set to 0.3 mm/sec.
  • items related to the discharge channel 9 will be described in parenthesis.
  • a section near adjacent positions may be defined as a measurement location, and the arithmetic mean roughness values Ra1 (Ra3) and Ra2 (Ra4) may be found by measuring at least three locations each in a direction along the direction in which the first fluid flows, and calculating the average value thereof.
  • a ratio Ra2/Ra1 (Ra4/Ra3) of the arithmetic mean roughness Ra1 (Ra3) to the arithmetic mean roughness Ra2 (Ra4) is preferably from 3 to 30, both inclusive.
  • Ra2/Ra1 (Ra4/Ra3) is from 3 to 30, both inclusive, significant turbulence in the first fluid can be generated without decreasing the speed in which the first fluid flows, and thus further improve the heat exchange efficiency.
  • a slurry is manufactured by adding and mixing together a sintering aid, a binder, a solvent, a dispersing agent, and the like with a powder formed from primary component raw materials (silicon carbide, alumina, and the like), as appropriate. Then, using this slurry, a ceramic green sheet is formed by a doctor blade method.
  • examples of other methods for forming the ceramic green sheet include manufacturing granules by spray drying and granulating the slurry by a spray drying and granulating method (spray drying method), and molding the obtained granules by roll compaction. Further, the ceramic green sheet may also be obtained by a mechanical pressing method and a cold isostatic pressing (CIP) method using the granules, or by manufacturing a green body rather than a slurry and using an extrusion molding method.
  • spray drying method spray drying method
  • CIP cold isostatic pressing
  • the obtained ceramic green sheet is machined into a preferred profile shape using a metal mold or a laser beam, and machining for forming the introduction hole and the discharge hole is performed.
  • the slurry is then applied to each ceramic green sheet, the sheets are laminated and pressurized, and the laminated and pressurized sheets are fired at a firing temperature in accordance with the primary component raw materials.
  • the downstream-side introduction hole may be formed so that the region that overlaps with the opening region of the upstream-side introduction hole remains on the ceramic green sheet when viewing the ceramic green sheet for forming the downstream-side introduction hole overlapped with the ceramic green sheet that formed the upstream-side introduction hole.
  • the downstream-side introduction hole may be provided so as to differ in position from an outer edge of the ceramic green sheet.
  • the positions of each hole from the outer edge of the ceramic green sheet may be made identical and the opening shapes may be made different.
  • the same method as described above may be used by replacing "introduction hole” with “discharge hole” and thus a description thereof is omitted.
  • a shape of a blade of a metal mold that comes into contact with the applicable edge may be tapered or an angle of incidence of the laser beam may be adjusted during formation of the introduction hole or the discharge hole in the ceramic green sheet described above.
  • a pyramid shaped jig may be pressed and pushed against the applicable edge, or the edge may be chamfered by cut processing, for example.
  • the protruding area can be formed in the area around the applicable edge by adjusting the clearance between the used blade of the metal mold and mortar when the introduction hole or the discharge hole in the ceramic green sheet described above is press-formed by the metal mold.
  • a protruding area can be formed by applying a paste having the same composition as that used for formation of the ceramic green sheet to the area around the applicable edge. Furthermore, at least one portion of the applicable edge of the ceramic green sheet may be made to protrude by pressing the area with a jig or the like.
  • a slurry is manufactured by adding and mixing together a sintering aid, a binder, a solvent, a dispersing agent, and the like with a powder formed from primary component raw materials (silicon carbide, alumina, and the like) that constitute each of the members, as appropriate.
  • the second member, the third member, and the flange portion can be obtained by manufacturing granules by spray drying and granulating this slurry by a spray drying and granulating method, manufacturing a powder compact having a preferred shape by a mechanical pressing method or a cold isostatic pressing method using the obtained granules, cutting the powder compact as necessary, and firing. Note that grinding may be performed as necessary after firing.
  • the powder compact of which the second member and the third member are made may be obtained by an extrusion molding method using a green body rather than the slurry. Further, the powder compact of which the flange portion is made may be formed by laminating the ceramic green sheets in the same way as with the first member.
  • a method such as follows may be used.
  • the arithmetic mean roughness Ra1 of the inner face of the second member is measured.
  • the introduction hole is provided to the ceramic green sheet using an output-adjusted laser beam, the mold is pressed after the introduction hole is provided to the ceramic green sheet, or laser processing or blasting may be performed after firing is performed.
  • the same method as described above may be used by replacing "second member” with “third member” and “introduction hole” with “discharge hole”. Thus, a description thereof is omitted.
  • the heat exchanger can be obtained by using the obtained first member, second member, third member, and flange portion, applying an adhesive to the bonded parts of each member, disposing each member so that the first fluid communicates therethrough, and curing the adhesive by thermal treatment.
  • the hole positions and the hole shapes may be made identical and the first member adjacent to the second member or the third member may be bonded in shifted position.
  • the second member and the third member are preferably prepared and bonded in accordance with the number of first members.
  • the weight of each member of the upper level is applied to the areas around the introduction hole and the discharge hole of the first member of the lower level, and therefore the second member and the third member disposed between the first members may each be disposed so that a central axis thereof is shifted in the direction in which the first fluid flows. This makes it possible to decrease the possibility of the occurrence of flaws and cracks in the areas near the introduction hole and the discharge hole of the first member of the lower level caused by the applied weight of each member of the upper level.
  • the preferred adhesive used is an inorganic adhesive superior in thermal resistance and corrosion resistance.
  • examples of such an inorganic adhesive include a paste that contains an SiO 2 -Al 2 O 3 -B 2 O 3 -RO glass (R: alkaline earth metal element) powder and a powder obtained by mixing a silicon metal powder and a silicon carbide powder.
  • R alkaline earth metal element
  • heat exchanger described above is not particularly limited in application as long as heat exchange is performed, allowing suitable use as a heat exchanger for various laser devices, semiconductor elements, and semiconductor manufacturing devices, for example.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (3)

  1. Wärmetauscher (1), der aus einer Keramik gebildet ist und einen Wärmeaustausch zwischen einem ersten Fluid und einem zweiten Fluid durchführt, wobei der Wärmetauscher (1) aufweist:
    eine Mehrzahl von ersten Elementen (2), die Wände aufweisen, die Einleitungslöcher (5) an einer ersten Endseite und Auslasslöcher (6) an einer zweiten Endseite aufweisen, wobei Räume, die die Einleitungslöcher (5) und die Auslasslöcher (6) verbinden, als erste Kanäle (8) dienen, durch die das erste Fluid hindurchströmt,
    zweite Elemente (3), die mit den Einleitungslöchern (5) an der ersten Endseite der Mehrzahl von ersten Elementen (2) kommunizieren, um das erste Fluid in die ersten Elemente (2) einzuleiten, und
    dritte Elemente (4), die mit den Auslasslöchern (6) an der zweiten Endseite der Mehrzahl von ersten Elementen (2) kommunizieren, um das erste Fluid, das durch die ersten Elemente (2) geströmt ist, auszulassen,
    wobei Räume zwischen der Mehrzahl von ersten Elementen (2) als zweite Kanäle (10) dienen, durch die das zweite Fluid hindurchströmt, und
    in mindestens einem benachbarten Paar der Einleitungslöcher (5b, 5c), das ein stromabwärtsseitiges Einleitungsloch (5b) und ein stromaufwärtsseitiges Einleitungsloch (5c) aufweist, ein Abschnitt, der mit einem Öffnungsbereich des stromaufwärtsseitigen Einleitungslochs (5c) überlappt, in einer Wand (13b) vorhanden ist, die das stromabwärtsseitige Einleitungsloch (5b) aufweist, bei Betrachtung in einer Richtung, in der das erste Fluid strömt,
    dadurch gekennzeichnet, dass
    das mindestens eine aus der Mehrzahl von ersten Elementen (2) einen Vorsprungsbereich an einer Position auf einem Mittelabschnitt davon in einem Bereich um einen Rand des Einleitungslochs (5) oder des Auslasslochs (6) aufweist, das auf der Stromabwärtsseite des ersten Fluids angeordnet ist, wobei der Rand auf einer Innenseite des ersten Elements (2) liegt.
  2. Wärmetauscher (1) gemäß Anspruch 1, wobei ein arithmetischer Mittelrauwert Ra2 einer Innenseite jedes der Einleitungslöcher (5) auf einer Stromabwärtsseite des ersten Fluids benachbart zu einem der zweiten Elemente (3) größer als ein arithmetischer Mittelrauwert Ra1 einer Innenseite des einen der zweiten Elemente (3) ist.
  3. Wärmetauscher (1) gemäß Anspruch 1 oder 2, wobei ein arithmetischer Mittelrauwert Ra4 von jedem der Auslasslöcher (6) auf einer Stromabwärtsseite des ersten Fluids benachbart zu einem der dritten Elemente (4) größer als ein arithmetischer Mittelrauwert Ra3 einer Innenseite des einen der dritten Elemente (4) ist.
EP15827887.9A 2014-07-29 2015-07-29 Wärmetauscher Active EP3176532B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014153946 2014-07-29
PCT/JP2015/071513 WO2016017697A1 (ja) 2014-07-29 2015-07-29 熱交換器

Publications (3)

Publication Number Publication Date
EP3176532A1 EP3176532A1 (de) 2017-06-07
EP3176532A4 EP3176532A4 (de) 2018-08-22
EP3176532B1 true EP3176532B1 (de) 2022-07-20

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US (1) US20170219302A1 (de)
EP (1) EP3176532B1 (de)
JP (1) JP6325674B2 (de)
WO (1) WO2016017697A1 (de)

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Publication number Priority date Publication date Assignee Title
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EP3176532A4 (de) 2018-08-22
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EP3176532A1 (de) 2017-06-07
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