WO2017170091A1 - 拡散接合型熱交換器 - Google Patents

拡散接合型熱交換器 Download PDF

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Publication number
WO2017170091A1
WO2017170091A1 PCT/JP2017/011612 JP2017011612W WO2017170091A1 WO 2017170091 A1 WO2017170091 A1 WO 2017170091A1 JP 2017011612 W JP2017011612 W JP 2017011612W WO 2017170091 A1 WO2017170091 A1 WO 2017170091A1
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WO
WIPO (PCT)
Prior art keywords
fluid passage
heat transfer
transfer plate
fluid
passage portions
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.)
Ceased
Application number
PCT/JP2017/011612
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English (en)
French (fr)
Japanese (ja)
Inventor
藤田　泰広
達也 森川
高橋　優
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.)
Sumitomo Precision Products Co Ltd
Original Assignee
Sumitomo Precision Products Co Ltd
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 Sumitomo Precision Products Co Ltd filed Critical Sumitomo Precision Products Co Ltd
Priority to US16/081,312 priority Critical patent/US20190086155A1/en
Priority to EP17774632.8A priority patent/EP3438591A4/en
Publication of WO2017170091A1 publication Critical patent/WO2017170091A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0037—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the conduits for the other heat-exchange medium also being formed by paired plates touching each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/002—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating specially adapted for particular articles or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
    • B23K20/023—Thermo-compression bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
    • B23K20/227—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded with ferrous layer
    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0093—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/02—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the heat-exchange media travelling at an angle to one another
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/048—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/14—Heat exchangers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys
    • B23K2103/05—Stainless steel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2210/00—Heat exchange conduits
    • F28F2210/02—Heat exchange conduits with particular branching, e.g. fractal conduit arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/06—Fastening; Joining by welding
    • F28F2275/061—Fastening; Joining by welding by diffusion bonding

Definitions

  • the present invention relates to a diffusion bonding type heat exchanger, and more particularly to a diffusion bonding type heat exchanger having a configuration in which a plurality of heat transfer plates each having a groove-like fluid passage portion are laminated and diffusion bonded.
  • a diffusion bonding type heat exchanger having a configuration in which a plurality of heat transfer plates each having a groove-like fluid passage portion are laminated and diffusion bonded is known.
  • Such a diffusion bonding type heat exchanger is disclosed in, for example, Japanese Patent Application Laid-Open No. 2013-155971.
  • Japanese Patent Application Laid-Open No. 2013-155971 discloses a heat exchanger including a core in which first heat transfer plates and second heat transfer plates are alternately laminated and diffusion-bonded. There are four types of A, B, C, D in the first heat transfer plate, and a plurality of them are provided.
  • a 2nd heat exchanger plate is 1 type of E, and two or more are provided. Each of the heat transfer plates is laminated on the core in the order of EAE ..., EBE ..., ECE ..., EDE ....
  • the external shapes of the four types of first heat transfer plates and the one type of second heat transfer plates are the same.
  • 2013-155971 is configured as an intercooler (intercooler) of a multistage compression system using four compressors.
  • the fluid (hydrogen) after passing through the first-stage compressor to the fourth-stage compressor flows, and the second heat transfer plate of E A refrigerant (cooling water) flows through the hot plate.
  • the core is provided with a plurality of ports corresponding to the heat transfer plates A to E that connect the heat transfer plates to the connection passages penetrating in the thickness direction. Distribution of the fluid to each of the heat transfer plates A to E is performed via a corresponding port.
  • JP 2013-155971 in order to handle a plurality of types of fluids with a common diffusion bonding type heat exchanger, the type of component (type of heat transfer plate) and the number of components (total number of heat transfer plates) are There is a problem of increasing.
  • each heat transfer plate is made common in order to laminate and bond four types of first heat transfer plates and one type of second heat transfer plates. If the load on the first heat transfer plate is greatly different, there is a problem that the degree of freedom decreases and optimization becomes difficult.
  • the present invention has been made in order to solve the above-described problems, and one object of the present invention is to provide component types and a plurality of types of fluids even when a plurality of types of fluids are handled by a common diffusion bonding type heat exchanger. It is an object of the present invention to provide a diffusion bonding type heat exchanger that can reduce the number of parts and that can sufficiently secure the degree of freedom of the configuration of the fluid passage portion.
  • a diffusion bonding type heat exchanger comprises a core in which a first heat transfer plate and a second heat transfer plate each having a groove-like fluid passage portion are laminated and diffusion bonded.
  • the hot plate includes a plurality of first fluid passage portions connected to different pairs of first ports and isolated from each other.
  • the first heat transfer plate which includes a plurality of first fluid passage portions connected to different pairs of first ports and isolated from each other.
  • a first heat transfer plate in which a plurality of types of first fluid passage portions are formed can be provided. That is, instead of providing a heat transfer plate for each type of fluid, a common first heat transfer plate can be provided for a plurality of types of fluids.
  • a plurality of pairs of second ports are provided, and the second heat transfer plate is formed to correspond to the first fluid passage portion of the first heat transfer plate,
  • the plurality of second fluid passage portions are isolated from each other, and the plurality of second fluid passage portions are respectively connected to different pairs of second ports.
  • “corresponding” means a relationship in which most of the heat exchange is performed between the fluid flowing through one first fluid passage and the fluid flowing through the second fluid passage.
  • One first fluid passage portion may correspond to one second fluid passage portion, or one second fluid passage portion may correspond to a plurality of first fluid passage portions.
  • the heat exchange between fluids can be performed efficiently by forming a plurality of 2nd fluid passage parts so as to correspond to a plurality of 1st fluid passage parts. Further, by connecting the plurality of second fluid passage portions to different pairs of second ports, according to the amount of heat exchange between the fluids respectively flowing in the first fluid passage portion and the second fluid passage portion corresponding to each other.
  • the type and flow rate of the fluid flowing through each second fluid passage portion can be individually set for each second fluid passage portion.
  • the same number of second fluid passage portions as the first fluid passage portions are provided, and each second fluid passage portion overlaps the plurality of first fluid passage portions of the first heat transfer plate in plan view. Placed in position. If comprised in this way, a some 2nd fluid channel
  • one wide second fluid passage portion one second fluid passage portion corresponding to the plurality of first fluid passage portions
  • first fluid passage portion and the second fluid passage portion in a one-to-one correspondence, heat exchange is performed between the fluids flowing through the first fluid passage portion and the second fluid passage portion corresponding to each other.
  • the flow rate of the fluid flowing through the second fluid passage portion can be easily optimized.
  • each of the plurality of first fluid passage portions corresponds to an outlet corresponding to one end connected to the first port on the inlet side in the plane of the first heat transfer plate. It is formed in a long and narrow shape extending in the first direction toward the other end connected to the first port on the side, and is arranged side by side along a second direction orthogonal to the first direction.
  • the “elongated shape” is a shape in which one of the two directions (first direction) orthogonal to each other in the plane of the first heat transfer plate is the longitudinal direction and the other (second direction) is the short direction.
  • the flow rate can be easily improved even with a simple flow path shape by making the first fluid passage part an elongated shape from one end part to the other end part, compared with the case of a wide shape.
  • the load applied to the laminated body of the first heat transfer plate and the second heat transfer plate when diffusion bonding is performed tends to vary.
  • the ease of manufacturing is reduced. Therefore, by arranging the elongated first fluid passage portions extending in the first direction along the second direction, the vertical and horizontal dimensions of the outer shape of the entire first heat transfer plate are made closer to each other (the aspect ratio is made closer to 1). Therefore, it is possible to suppress the load variation at the time of performing diffusion bonding and improve the ease of manufacturing the core.
  • the plurality of first fluid passage portions are arranged apart from each other in the second direction on the same surface of the first heat transfer plate, and the first heat transfer plate is adjacent to the second direction.
  • a diffusion bonding surface with the second heat transfer plate is provided between the first fluid passage portions.
  • a diffusion bonding surface extending in the first direction can be formed between the plurality of first fluid passage portions arranged in the second direction on the surface of the first heat transfer plate, for example, the first heat transfer plate and Compared to the case where the second heat transfer plate is joined only at the outer peripheral portion of the surface of the heat transfer plate or the gap (partition) of the flow path constituting the first fluid passage portion, the first heat transfer plate and the second heat transfer plate are joined.
  • the diffusion bonding strength with the hot plate can be easily ensured.
  • the plurality of first fluid passage portions are respectively connected to the first port on the outlet side corresponding to the one end portion connected to the first port on the inlet side.
  • at least one first fluid passage portion of the plurality of first fluid passage portions includes a flow passage width, a flow passage length, a flow passage depth, and At least one of the number of flow paths is formed to be different from the other first fluid passage portions.
  • the heat exchange amount is not balanced.
  • the first fluid passage section the flow path width, the flow path length, the flow path depth, and the number of the flow paths
  • the amount of heat exchange can be easily finely adjusted for each first fluid passage portion.
  • the heat exchange amount can be optimized easily and accurately according to the load (heat exchange amount) for each type of the first fluid passage portion.
  • the present invention as described above, even when a plurality of types of fluids are handled by a common diffusion bonding type heat exchanger, the types of components and the number of components can be reduced, and the configuration of the fluid passage portion is provided. It is possible to provide a diffusion bonding type heat exchanger that can sufficiently secure the degree of freedom.
  • the configuration of the heat exchanger 100 according to the first embodiment will be described with reference to FIGS.
  • the heat exchanger 100 according to the first embodiment is a diffusion formed by laminating the first heat transfer plate 10 and the second heat transfer plate 20 each having a groove-shaped fluid passage portion and integrating them by diffusion bonding. This is a joining type plate heat exchanger.
  • the heat exchanger 100 is an example of the “diffusion bonding type heat exchanger” in the claims.
  • the heat exchanger 100 includes a core 1, a plurality of pairs (three pairs) of first ports 2, and a plurality of pairs (three pairs) of second ports 3.
  • the core 1 includes a plurality of first heat transfer plates 10 in which groove-shaped first fluid passage portions 11 (see FIG. 3) are formed, and groove-shaped second fluid passage portions 21 (see FIG. 2). 3), and a plurality of second heat transfer plates 20 formed thereon.
  • the core 1 is a heat exchange unit that exchanges heat between the fluid flowing through the first heat transfer plate 10 and the fluid flowing through the second heat transfer plate 20.
  • the first port 2 is an inlet / outlet for introducing and discharging a fluid to / from the first heat transfer plate 10 (first fluid passage portion 11), and is provided as a pair of an inlet side and an outlet side.
  • the second port 3 is an inlet / outlet for introducing or discharging a fluid to / from the second heat transfer plate 20 (second fluid passage portion 21), and is provided as a pair of an inlet side and an outlet side.
  • side plates 4 are respectively provided at both ends of the core 1 in the stacking direction (Z direction) of the first heat transfer plate 10 and the second heat transfer plate 20.
  • the core 1 is configured by alternately laminating and diffusion-bonding first heat transfer plates 10 and second heat transfer plates 20 each having a groove-like fluid passage portion formed therein. That is, the core 1 is formed in a rectangular box shape as a whole by sandwiching a laminate of the first heat transfer plate 10 and the second heat transfer plate 20 that are alternately stacked between the pair of side plates 4 and mutually connecting them by diffusion bonding. It is formed in (cuboid shape).
  • FIG. 2 shows an example in which three (three) first heat transfer plates 10 and four (four) second heat transfer plates 20 are alternately stacked.
  • the number of stacked layers is not limited to this, and an arbitrary number of layers may be stacked.
  • the lamination direction of the 1st heat exchanger plate 10 and the 2nd heat exchanger plate 20 shown in FIG. 2 be a Z direction.
  • the longitudinal direction of the core 1 when viewed from the Z direction is the X direction
  • the short direction of the core 1 is the Y direction.
  • the first heat transfer plate 10 and the second heat transfer plate 20 have a flat plate shape and are formed in a rectangular shape in plan view.
  • the first heat transfer plate 10 and the second heat transfer plate 20 have substantially the same planar shape, and both have a length L0 in the X direction (longitudinal direction) and a width W0 in the Y direction (short direction).
  • the first heat transfer plate 10 and the second heat transfer plate 20 have substantially the same thickness t, but the thickness t of the first heat transfer plate 10 and the second heat transfer plate 20 may be different from each other.
  • the first heat transfer plate 10 and the second heat transfer plate 20 are made of a stainless steel material.
  • the first heat transfer plate 10 and the second heat transfer plate 20 may be formed of a metal material having high thermal conductivity other than the stainless steel material.
  • the first fluid passage portion 11 and the second fluid passage portion 21 are formed on one surface 10a (upper surface) of the first heat transfer plate 10 and one surface 20a (upper surface) of the second heat transfer plate 20, respectively.
  • the other surface 10b (lower surface) of the first heat transfer plate 10 and the other surface 20b (lower surface) of the second heat transfer plate 20 are both flat surfaces.
  • the first heat transfer plate 10 is connected to different pairs of first ports 2 (first port 2 of the inlet side and outlet side pair) and is separated from each other.
  • a passage portion 11 is included. That is, the first heat transfer plate 10 is provided with a plurality of first fluid passage portions 11 that can circulate fluid independently of each other.
  • the first port 2 may be configured by other than a cylindrical tube member.
  • the first ports 2a, 2c, and 2e (2b, 2d, and 2f) may be collectively formed by forming through holes as many as the number of ports in a block-like member extending in the Y direction.
  • each of the three first fluid passage portions 11a, 11b, and 11c has an inlet 12 and an outlet 13 respectively.
  • the inlet 12 and the outlet 13 are examples of “one end” and “the other end” in the claims, respectively.
  • Both the inlet 12 and the outlet 13 are circular through holes that penetrate the first heat transfer plate 10 in the thickness direction.
  • through-holes 5 c similar to the inlet 12 and the outlet 13 are also provided at corresponding positions (positions overlapping in the Z direction) of the second heat transfer plate 20 and the upper side plate 4 ( 6 places).
  • stacked 1st heat exchanger plate 10 and the 2nd heat exchanger plate 20 (side plate 4) are connected to the thickness direction (Z direction), and the inside of the core 1 as a whole
  • the three introduction paths 5a extending in the Z direction are configured.
  • the introduction path 5a is connected to the first ports 2a, 2c and 2e on the inlet side.
  • each lead-out port 13 and the through hole 5c are connected to constitute three lead-out paths 5b extending in the Z direction within the core 1 as a whole.
  • the lead-out path 5b is connected to the first ports 2b, 2d and 2f on the outlet side.
  • path part 21 of the 2nd heat exchanger plate 20 is not connected with the through-hole 5c, and is mutually isolated.
  • the heat exchanger 100 is used as an intermediate cooler (intercooler) of a multistage compression system including a plurality of compressors.
  • the fluid after passing through the first stage compressor (fluid A) is supplied to the first fluid passage portion 11a
  • the fluid after passing through the second stage compressor (fluid B).
  • the fluid (C fluid) after passing through the third-stage compressor is supplied to the first fluid passage portion 11c.
  • the fluids A, B, and C are common, but the pressures are different.
  • the fluid may be a gas or a liquid.
  • each of the plurality of first fluid passage portions 11 corresponds from the introduction port 12 connected to the first port 2 on the inlet side in the surface of the first heat transfer plate 10 (in the one surface 10a). It is formed in an elongated shape extending in the first direction toward the outlet port 13 connected to the first port 2 on the outlet side. And the some 1st fluid channel
  • path part 11 is arrange
  • the first direction matches the X direction
  • the second direction matches the Y direction. That is, the three first fluid passage portions 11 each extend along the longitudinal direction of the core 1 (the long side of the first heat transfer plate 10). And the three 1st fluid channel
  • the plurality of first fluid passage portions 11 are arranged on the same surface (one surface 10a) of the first heat transfer plate 10 so as to be separated from each other in the second direction.
  • the 1st heat exchanger plate 10 has the diffusion joining surface 14 with the 2nd heat exchanger plate 20 between the 1st fluid passage parts 11 adjacent to the 2nd direction.
  • the first fluid passage portion 11 a and the first fluid passage portion 11 b are arranged with a gap CL ⁇ b> 1 in the Y direction.
  • the first fluid passage portion 11b and the first fluid passage portion 11c are arranged with a gap CL2 in the Y direction.
  • the interval CL1 and the interval CL2 may be the same or different.
  • the diffusion bonding surface 14 is a region having a distance CL1 between the first fluid passage portions 11 and a region having a distance CL2.
  • the diffusion bonding surface 14 extends in the X direction so as to partition the three first fluid passage portions 11.
  • the outer peripheral portion surrounding the three first fluid passage portions 11 is also a bonding surface.
  • the diffusion bonding surface 14 extends from the outer peripheral portion on one end side in the X direction to the outer peripheral portion on the other end side.
  • the second heat transfer plate 20 includes a plurality of second fluid passage portions 21 that are formed to correspond to the first fluid passage portions 11 of the first heat transfer plate 10 and are isolated from each other. Yes. That is, the second heat transfer plate 20 is provided with a plurality of second fluid passage portions 21 that can circulate fluid independently of each other. The plurality of second fluid passage portions 21 are respectively connected to different pairs of second ports 3 (second port 3 on the inlet side and outlet side pair) (see FIG. 1).
  • the second heat transfer plate 20 has three second fluid passage portions 21a, 21b and 21c corresponding to the three first fluid passage portions 11a, 11b and 11c. That is, a pair of the first fluid passage portion 11a and the second fluid passage portion 21a, a pair of the first fluid passage portion 11b and the second fluid passage portion 21b, the first fluid passage portion 11c and the second fluid passage portion 21c, And most of the heat exchange takes place between each pair.
  • Each of the second fluid passage portions 21 is disposed at a position overlapping the plurality of first fluid passage portions 11 of the first heat transfer plate 10 in plan view.
  • each pair of the first fluid passage portion 11 and the second fluid passage portion 21 is disposed so as to overlap in the stacking direction (Z direction). For this reason, for example, heat exchange can be performed more efficiently than when each pair is arranged at a position shifted in the Y direction in plan view and does not overlap in the Z direction.
  • each of the second fluid passage portions 21a, 21b, and 21c has an introduction opening 22 that opens from the side end surface on the X1 side of the second heat transfer plate 20 to the inside of the header portion 6a (see FIG. 2).
  • the second ports 3a, 3c and 3e communicate with each other.
  • the second fluid passage portions 21a, 21b, and 21c each have a lead-out opening 23 that opens from the side end surface on the X2 side of the second heat transfer plate 20 to the inside of the header portion 6b (see FIG. 2). It communicates with the two ports 3b, 3d and 3f (see FIG. 1).
  • the second ports 3a, 3c and 3e are ports on the inlet side
  • the second ports 3b, 3d and 3f are ports on the outlet side, respectively.
  • each of the header portions 6a and 6b has a semi-cylindrical shape extending in the Y direction (see FIG. 2), and both end portions in the Y direction are closed.
  • the header portion 6a covers the side end surface of the core 1 on the X1 side so as to be able to store fluid therein
  • the header portion 6b covers the side end surface of the core 1 on the X2 side so that fluid can be stored inside. Is provided.
  • partition plates 6c are provided inside the header portions 6a and 6b, respectively.
  • the inside of the header portion 6a has a space connecting the second fluid passage portion 21a and the second port 3a, a space connecting the second fluid passage portion 21b and the second port 3c, and a second fluid passage. It is partitioned into a space connecting the portion 21c and the second port 3e.
  • the partition plate 6c allows the inside of the header portion 6b to have a space that connects the second fluid passage portion 21a and the second port 3b, a space that connects the second fluid passage portion 21b and the second port 3d, The two fluid passage portions 21c and the second port 3f are partitioned into a space.
  • the second fluid passage portions 21a, 21b and 21c are respectively connected to separate pairs of second ports 3 (a pair of second ports 3a and 3b, a pair of second ports 3c and 3d, and a pair of second ports). 3e and 3f).
  • the fluid supplied to the second fluid passage portion 21 may be a gas or a liquid.
  • the same fluid may be supplied to the second fluid passage portions 21a, 21b, and 21c.
  • the second fluid passage portions 21a, 21b, and 21c are fluids (D) that serve as refrigerants for cooling the compressed fluid (A fluid, B fluid, C fluid) on the first fluid passage portion 11 side. Fluid) is supplied.
  • the D fluid is, for example, a coolant.
  • the second fluid passage portions 21a, 21b, and 21c are independent fluid passage portions individually connected to the second ports 3a, 3c, and 3e, respectively. Therefore, even when the common D fluid is circulated in each of the second fluid passage portions 21a, 21b, and 21c, the fluid characteristics such as supply pressure and flow rate from each port can be made different.
  • each of the plurality of second fluid passage portions 21 is connected to the inlet-side second port 3 in the plane of the second heat transfer plate 20.
  • path part 21 is arrange
  • path parts 21 are arrange
  • the diffusion bonding surface 24 is a region having a distance CL3 and a region having a distance CL4.
  • CL1 the interval
  • CL2 the interval
  • CL3 the interval
  • CL4 may be equal to each other.
  • the heat exchanger 100 is a counterflow type heat exchanger in which the fluid passing through the first heat transfer plate 10 and the fluid passing through the second heat transfer plate 20 flow in directions facing each other.
  • FIG. 1 Schematic of the layer structure of the core 1 is as shown in FIG.
  • the first heat transfer plate 10 through which the A fluid, the B fluid, and the C fluid to be cooled flow is laminated so as to be sandwiched between the second heat transfer plates 20 through which the D fluid serving as a refrigerant flows. .
  • path part 11 has a flow-path shape as shown in FIG. 5 as an example.
  • path parts 11 (11a, 11b, and 11c) have shown the example which has a common structure. That is, in the example shown in FIG. 5, the three first fluid passage portions 11 (11a to 11c) are formed in substantially the same shape.
  • Each of the three first fluid passage portions 11 (11a to 11c) has an outer shape having a length L1 in the X direction (longitudinal direction) and a width W1 in the Y direction (short direction).
  • Each of the plurality of first fluid passage portions 11 has a flow path 15 that connects between the inlet port 12 connected to the first port 2 on the inlet side and the outlet port 13 connected to the first port 2 on the outlet side corresponding thereto.
  • the first fluid passage portion 11 includes an inlet 12 and an outlet 13, a plurality of heat exchange passages 16, and a connection passage portion 17.
  • the flow path 15 includes a heat exchange passage 16 and a connection passage portion 17.
  • the heat exchange passage 16 is a linear flow path provided for exchanging heat with the fluid, and is provided so as to extend in the X direction and to be parallel to the Y direction.
  • the first fluid passage portion 11 has eight heat exchange passages 16.
  • the number of heat exchange passages 16 may be other than eight.
  • connection passage portion 17 is provided between the inlet 12 and the plurality of heat exchange passages 16 and between the outlet 13 and the plurality of heat exchange passages 16, respectively. Since the structure of the connection passage portion 17 is common to the introduction port 12 side and the outlet port 13 side, only the connection passage portion 17 of the introduction port 12 will be described.
  • connection passage portion 17 has one end connected to the inlet 12 and the other end connected to a plurality (eight) of heat exchange passages 16. Thereby, the connection passage portion 17 has a function of distributing the fluid from the introduction port 12 to each heat exchange passage 16.
  • the connecting passage portion 17 is branched into eight from the one inlet 12 and is connected to each of the eight heat exchange passages 16.
  • the flow path 15 (the heat exchange passage 16 and the connection passage portion 17) is formed as a concave groove on the one surface 10a of the first heat transfer plate 10 as shown in FIG.
  • the cross-sectional shape orthogonal to the direction in which the flow path 15 extends is a shape that is substantially semicircular.
  • the flow path 15 is formed by etching or machining, for example.
  • the channel 15 has a channel width W11 and a channel depth H11.
  • the channel width and the channel depth are common to the heat exchange passage 16 and the connection passage portion 17.
  • the heat exchange passage 16 has a flow path length L11 (see FIG. 5), and the partition 18 between the heat exchange passages 16 has a width W12.
  • the channel width W11 of the channel 15 is larger than the width W12 of the partition wall 18.
  • the width (space CL1, CL2) of the diffusion bonding surface 14 is larger than the width W12 of the partition wall 18 between the heat exchange passages 16.
  • path part 21 has a flow-path shape as shown in FIG. 6 as an example.
  • the first embodiment shows an example in which the three second fluid passage portions 21 (21a, 21b, and 21c) have a common configuration.
  • the three second fluid passage portions 21 (21a to 21c) are formed in substantially the same shape.
  • Each of the three second fluid passage portions 21 (21a to 21c) has an outer shape having a length L2 in the X direction (longitudinal direction) and a width W2 in the Y direction (short direction).
  • the width W2 is substantially equal to the width W1 of the first fluid passage portion 11.
  • the length L2 is larger than the length L1 of the first fluid passage portion 11 by the amount that the second fluid passage portion 21 is open at the end surface in the X direction of the second heat transfer plate 20 (core 1).
  • Each of the plurality of second fluid passage portions 21 has a flow path 25 connecting between the introduction opening 22 connected to the second port 3 on the inlet side and the outlet opening 23 connected to the corresponding second port 3 on the outlet side.
  • the second fluid passage portion 21 includes an introduction opening 22 and a discharge opening 23, a plurality of heat exchange passages 26, and a connection passage portion 27.
  • the flow path 25 includes a heat exchange passage 26 and a connection passage portion 27.
  • the configuration of the heat exchange passage 26 is the same as that of the heat exchange passage 16 of the first fluid passage portion 11 of FIG. 5, and the same number (eight) is provided in a common shape.
  • the connection passage portion 27 on the introduction opening 22 side includes a flow path portion 27 a connected to the introduction opening 22 formed on the end face of the second heat transfer plate 20.
  • the flow path portion 27a is formed in a straight line, and a pair is provided on both outer sides in the Y direction of the through hole 5c.
  • the connection passage portion 27 is branched into four channels in total by branching into four from the pair of channel portions 27a. And the edge part (other end part) of the connection channel
  • connection passage portion 27 of the second fluid passage portion 21 is divided into one side and the other side in the Y direction across the through hole 5c, and is branched into four branch paths.
  • the passage portion 27a is provided in the connection passage portion 27 on the outlet opening 23 side, and has the same configuration.
  • the flow path 25 (the heat exchange passage 26 and the connection passage portion 27) is formed as a concave groove on the one surface 20a of the second heat transfer plate 20, as shown in FIG.
  • the cross-sectional shape orthogonal to the direction in which the flow path 25 extends is a shape recessed in a substantially semicircular shape.
  • the channel 25 has a channel width W21 and a channel depth H21.
  • the channel width W21 and the channel depth H21 are substantially equal to the channel width W11 and the channel depth H11 of the channel 15.
  • the channel width W21 of the channel 25 and the channel width W11 of the channel 15 may be different from each other.
  • the channel depth H21 of the channel 25 and the channel depth H11 of the channel 15 may be different from each other.
  • the heat exchange passage 26 has a flow path length L21 (see FIG. 6).
  • the flow path length L21 is substantially equal to the flow path length L11 of the heat exchange passage 16.
  • the width (space CL3, CL4) of the diffusion bonding surface 24 between the adjacent second fluid passage portions 21 is larger than the width W22 of the partition wall 28 between the heat exchange passages 26.
  • 7 shows an example in which the positions of the flow path 15 and the flow path 25 in the Y direction (the center position of the flow path) coincide with each other. And the position of the flow path 25 in the Y direction may be shifted from each other.
  • the first fluid passage portions 11a, 11b, and 11c of the first heat transfer plate 10 contain high-temperature and high-pressure A fluid, B fluid, and C fluid that have passed through separate compressors. Supplied respectively.
  • the A fluid, the B fluid, and the C fluid flow in from the first ports 2a, 2c, and 2e (see FIG. 1) on the inlet side connected to the outlet side of the respective compressors, and the respective first fluid passage portions 11a. , 11b and 11c.
  • Each fluid is cooled while passing through the respective flow paths 15 (the heat exchange passage 16 and the connection passage portion 17) of the first fluid passage portions 11a, 11b, and 11c, and the corresponding first ports 2b, 2d on the outlet side. And 2f (see FIG. 1), respectively.
  • the fluid (D fluid) serving as a refrigerant is supplied to the second fluid passage portions 21a, 21b and 21c of the second heat transfer plate 20, respectively.
  • the D fluid flows in from the second ports 3a, 3c and 3e (see FIG. 1) on the inlet side, passes through the internal space of the header portion 6a partitioned by the partition plate 6c, and each second fluid passage portion 21a. , 21b and 21c.
  • the supply pressures to the second ports 3a, 3c and 3e are individually adjusted according to variations in the amount of heat exchange with the first fluid passage portions 11a, 11b and 11c.
  • Each D fluid is heated (takes away heat) while passing through the respective flow paths 25 (the heat exchange path 26 and the connection path section 27) of the second fluid passage portions 21a, 21b, and 21c. Outflow from the second ports 3b, 3d and 3f (see FIG. 1), respectively.
  • a plurality of first fluid passages connected to different pairs of first ports 2 (each pair of 2a and 2b, 2c and 2d, 2e and 2f) and isolated from each other
  • a first heat transfer plate 10 including the portion 11 is provided.
  • a first heat transfer plate 10 in which a plurality of types of first fluid passage portions 11 are formed can be provided. That is, instead of providing a heat transfer plate for each type of fluid, the first heat transfer plate 10 common to a plurality of types of fluids can be provided.
  • the component type (the type of the first heat transfer plate 10) and the number of components (the first heat transfer plate 10 and the second heat transfer plate 10).
  • the total number of plates 20) can be reduced.
  • three types of three types of heat transfer plates corresponding to the first fluid passage portions 11a, 11b, and 11c are respectively provided (three types total 9 pieces).
  • Sheet) and 10 heat transfer plates corresponding to the second fluid passage portion 21 (10 sheets of 1 type) a total of 19 heat transfer plates of 4 types are required.
  • two types of the first heat transfer plate 10 and the second heat transfer plate 20 and a total of seven sheets are sufficient.
  • first fluid passage portions 11 can be formed in the same first heat transfer plate 10, so that, for example, one first heat transfer plate 11 can be formed according to the load (heat exchange amount) for each fluid.
  • the degree of freedom of the configuration of the fluid passage part is sufficiently large, such as reducing the size of one fluid passage part 11 to form another first fluid passage part 11 in the empty space and reducing the plane size of the product. Can be secured. A specific example of changing the configuration of the fluid passage portion will be described later.
  • the second fluid passage portion 21 is formed to correspond to the first fluid passage portion 11 of the first heat transfer plate 10 and includes a plurality of second fluid passage portions 21 that are separated from each other.
  • a heat transfer plate 20 is provided.
  • the plurality of second fluid passage portions 21 are respectively connected to different pairs of second ports 3 (each pair of 3a and 3b, 3c and 3d, 3e and 3f).
  • path part 21 is arrange
  • the plurality of second fluid passage portions 21 can be provided in a one-to-one correspondence with the plurality of first fluid passage portions 11.
  • one wide second fluid passage portion one second fluid passage portion corresponding to three first fluid passage portions 11
  • the heat exchange amount between one first fluid passage portion 11a and the second fluid passage portion and the heat exchange amount between the other first fluid passage portion 11b and the second fluid passage portion are independently determined. It becomes difficult to adjust.
  • the first fluid passage portions 11a, 11b and 11c and the second fluid passage portions 21a, 21b and 21c in a one-to-one correspondence, as a result, the first fluid passage portions 11a, 11b corresponding to each other.
  • 11c and the fluid which flows through each pair of 2nd fluid passage parts 21a, 21b, and 21c heat exchange can be performed efficiently.
  • the flow rate of the fluid flowing through the second fluid passage portion 21 can be easily optimized.
  • each of the plurality of first fluid passage portions 11 is moved from the inlet 12 toward the corresponding outlet 13 in the one surface 10a of the first heat transfer plate 10. It forms in the elongate shape extended toward a direction, and it arrange
  • the elongated first fluid passage portions 11 extending in the X direction along the Y direction the vertical and horizontal dimensions of the outer shape of the entire first heat transfer plate 10 are made closer to each other (the aspect ratio is made closer to 1). Can do. As a result, it is possible to suppress the load variation when performing diffusion bonding and improve the ease of manufacturing the core 1.
  • the plurality of first fluid passage portions 11 are arranged apart from each other in the Y direction on the one surface 10a of the first heat transfer plate 10. And the diffusion joining surface 14 with the 2nd heat exchanger plate 20 is provided between the 1st fluid channel
  • positioned in the one surface 10a of the 1st heat exchanger plate 10 can be isolated easily as an independent fluid channel
  • a diffusion bonding surface 14 extending in the X direction can be formed between the plurality of first fluid passage portions 11 arranged in the Y direction.
  • the first heat transfer plate 10 and the second heat transfer plate 20 can be connected to the outer peripheral portion or the second heat transfer plate surface.
  • the gap part (partition 18) of the channel which constitutes 1 fluid passage part 11 ensuring the diffusion joining strength of the 1st heat exchanger plate 10 and the 2nd heat exchanger plate 20 easily.
  • a plurality of second fluid passage portions 21 of the second heat transfer plate 20 are arranged apart from each other in the Y direction, and the first heat transfer plate 10 is disposed between the second fluid passage portions 21 adjacent in the Y direction.
  • the plurality of second fluid passage portions 21 can be easily isolated as independent fluid passage portions. Further, the diffusion bonding strength between the first heat transfer plate 10 and the second heat transfer plate 20 can be easily secured by making the width (CL3, CL4) of the diffusion bonding surface 24 larger than the width W22 of the partition wall 28. Can do.
  • the first heat transfer plate 110 has a pair of first ports 2 (a pair of first ports 2a and 2b, a pair of first ports 2c). 2d, a pair of first ports 2e and 2f) (see FIG. 1) and three first fluid passage portions 111 (111a, 111b and 111c) which are isolated from each other.
  • the heat exchanger 200 is an example of the “diffusion bonding type heat exchanger” in the claims.
  • At least one first fluid passage portion 111 among the plurality (three) of first fluid passage portions 111 includes a flow passage width, a flow passage length, a flow passage depth of the flow passage 15, and At least one of the numbers of the flow paths 15 is formed so as to be different from the other first fluid passage portions 111.
  • the first fluid passage portion 111b at the center in the Y direction is configured to be larger than the first fluid passage portions 111a and 111c on both sides in the Y direction. Yes.
  • the first fluid passage portions 111a and 111c have a common configuration.
  • the first fluid passage portion 111b as a whole has a length L3b in the X direction and a width W3b in the Y direction.
  • the first fluid passage portions 111a and 111c as a whole have a length L3a in the X direction and a width W3a in the Y direction, respectively.
  • the length L3a of the first fluid passage portions 111a and 111c and the length L3b of the first fluid passage portion 111b are equal to each other.
  • the length L3a and the length L3b may be different.
  • the width W3a of the first fluid passage portions 111a and 111c is smaller than the width W3b of the first fluid passage portion 111b.
  • the width W3a may be larger than the width W3b.
  • the length L3a is equal to the length L1 of the first fluid passage portion 11 of FIG. 5, while the width W3a is the first fluid passage portion of FIG. 11 width W1 is smaller.
  • the length L3b is equal to the length L1 of the first fluid passage portion 11 in FIG.
  • the width W3b is larger than the width W1 of the first fluid passage portion 11 in FIG. Therefore, in the second embodiment, in the first heat transfer plate 110, a larger space is allocated to the first fluid passage portion 111b as the first fluid passage portions 111a and 111c are miniaturized.
  • Each flow path 115a (115c) of the first fluid passage portion 111a (111c) includes four heat exchange passages 116a (116c). Note that, unlike the first embodiment, the connection passage portion 117a (117c) is branched into four and connected in parallel to the heat exchange passages 116a (116c).
  • the heat exchange passage 116a (116c) has a flow path length L31. As shown in FIG. 9, the flow path 115a (115c) of the first fluid passage portion 111a (111c) has a flow path width W31 and a flow path depth H31.
  • the flow path 115b of the first fluid passage portion 111b includes nine heat exchange passages 116b, which are more than four of the first fluid passage portion 111a (111c).
  • the connection passage portion 117b is divided into nine branches and connected in parallel to the heat exchange passages 116b.
  • the heat exchange passage 116b has a flow path length L32.
  • the flow path 115b of the first fluid passage portion 111b has a flow path width W32 and a flow path depth H32.
  • the flow passage width W32 of the flow passage 115b of the first fluid passage portion 111b is larger than the flow passage width W31 of the flow passage 115a (115c) of the first fluid passage portion 111a (111c).
  • the channel depth H32 of the channel 115b of the first fluid passage portion 111b is equal to the channel depth H31 of the channel 115a (115c) of the first fluid passage portion 111a (111c).
  • the flow path length L32 of the heat exchange passage 116b of the first fluid passage section 111b is equal to the flow path length L31 of the flow path 115a (115c) of the first fluid passage section 111a (111c).
  • the flow path width W32 of the first fluid passage portion 111b is larger than the flow passage width W31 of the first fluid passage portions 111a and 111c, and the flow passage of the first fluid passage portion 111b.
  • the number of 115b (9) is larger than the number (4) of the flow paths 115a (115c) of the first fluid passage portions 111a and 111c.
  • the flow path width and the number of flow paths 115 are set according to the type of fluid flowing through each of the first fluid passage portions 111a to 111c and the size of the load (heat exchange amount). Therefore, the first fluid passage portion 111b is configured to have a larger amount of heat exchange than the first fluid passage portions 111a and 111c.
  • the first fluid passage portion 111b is formed to be different from the other first fluid passage portions 111a and 111c in the flow passage width and the number of flow passages.
  • the example in which the channel width and the number of channels are made different is shown, but only one of the channel width, the channel length, the channel depth, and the number of channels is different. It may be allowed. All of the channel width, channel length, channel depth, and number of channels may be different.
  • each of the first fluid passage portions 111a, 111b, and 111c has a different configuration (a configuration in which any one of the channel width, the channel length, the channel depth, and the number of channels is different). Also good.
  • the description of the second heat transfer plate 20 is omitted, but the second fluid passage portion 21 of the second heat transfer plate 20 has the same shape corresponding to each of the first fluid passage portions 111a to 111c. What is necessary is just to comprise a 2nd fluid channel
  • a plurality of first ports 2 (two pairs of 2a and 2b, 2c and 2d, 2e and 2f) which are different from each other and which are isolated from each other are connected.
  • first fluid passage portions 111a to 111c can be formed in the same first heat transfer plate 110, so that each type according to the load (heat exchange amount) for each fluid, etc. A sufficient degree of freedom in the configuration of the fluid passage portion can be ensured. That is, the shape and layout of the first fluid passage portions 111a, 111b, and 111c can be freely set in the first heat transfer plate 110.
  • the first fluid passage portion 111b among the plurality of first fluid passage portions 111a to 111c is changed into the passage width W32, the passage length L32, the flow passage length of the passage 115b. At least one of the path depth H32 and the number of the flow paths 115b is formed to be different from the other first fluid passage portions 111a (111c).
  • the configurations (the channel width, the channel length, the channel depth, and the number of the channels) of the plurality of types of first fluid passage portions 111a to 111c different The excess heat exchange amount that cannot be adjusted by changing the number of sheets can be easily finely adjusted in each of the first fluid passage portions 111a to 111c. As a result, the heat exchange amount can be optimized easily and accurately according to the load (heat exchange amount) for each type of the first fluid passage portion 111.
  • the example of the counterflow type heat exchanger 100 which the fluid which passes the 1st heat exchanger plate 10 and the fluid which passes the 2nd heat exchanger plate 20 flows in the direction which mutually opposes is shown.
  • the heat exchanger is a parallel flow type in which the fluid passing through the first heat transfer plate 10 and the fluid passing through the second heat transfer plate 20 flow in the same direction, or a cross flow type in which the fluids cross each other ( (See FIG. 10).
  • the said 1st Embodiment showed the example which comprised the core 1 by laminating
  • the first heat transfer plate and the second heat transfer plate are not necessarily stacked alternately.
  • a single second heat transfer plate may be laminated on a two-layer (multiple layers) first heat transfer plate.
  • the first heat transfer plate 10 (110) is provided with the three first fluid passage portions 11.
  • the present invention is not limited to this.
  • the first heat transfer plate 10 may be provided with two or four or more first fluid passage portions 11.
  • the present invention is not limited to this.
  • only one second fluid passage portion may be provided.
  • the common second fluid passage portion 221 is connected to the second fluid transmission portion 221 with respect to the three first fluid passage portions 11 of the first heat transfer plate 10.
  • the heat plate 220 may be provided.
  • the second fluid passage portion 221 extends in the Y direction orthogonal to the first fluid passage portion 11, and is a cross flow type heat exchanger.
  • the second fluid passage portion 221 has a width W5 in the X direction substantially equal to the length L1 of the first fluid passage portion 11, and is formed to extend from one end to the other end in the Y direction of the second heat transfer plate 220. . Thereby, the D fluid flowing through one (common) second fluid passage portion 221 and the A fluid, B fluid, and C fluid flowing through the three first fluid passage portions 11 respectively perform heat exchange.
  • the number of the second fluid passage portions may be any number. That is, the same number as the first fluid passage portion or a plurality other than one may be used. For example, a plurality of (for example, two) second fluid passage portions may be provided corresponding to one first fluid passage portion.
  • the three second fluid passage portions 21a to 21c are connected to different pairs of second ports 3 (each pair of 3a and 3b, 3c and 3d, 3e and 3f), respectively.
  • the present invention is not limited to this.
  • the three second fluid passage portions 21a to 21c may be connected to a common second port.
  • the partition plates 6c provided in the header portions 6a and 6b may be removed.
  • the internal spaces of the header portions 6a and 6b are connected, and the three second fluid passage portions 21a to 21c are connected to the common second port 3.
  • the second ports 3 may be provided in three pairs (three each), but it is sufficient that a pair is provided at least on the inlet side (for example, 3c) and the outlet side (for example, 3d).
  • Fluids A to F may be different types of fluids, or some of them may be the same type of fluid.
  • the present invention is not limited to this.
  • This invention does not exclude the structure which provides 3 or more types of heat exchanger plates, such as a 3rd heat exchanger plate.
  • forming the fluid passage portion provided in the third heat transfer plate in the first heat transfer plate 10 and the second heat transfer plate 20 is a component type (type of heat transfer plate). ) And the number of parts can be reduced.
  • the plurality of first fluid passage portions 11 are each elongated in the X direction extending from the inlet-side inlet 12 to the corresponding outlet-side outlet 13.
  • the present invention is not limited to this example.
  • the first fluid passage portion need not be formed in an elongated shape.
  • the first fluid passage portion may be formed in a square shape or a shape other than a rectangle.
  • the first fluid passage portions may not be arranged side by side in the lateral direction (Y direction) orthogonal to the longitudinal direction (X direction). For example, you may arrange
  • the first fluid passage portion 11 and the second fluid passage portion 21 are provided with the flow path 15 (25) including the heat exchange passage 16 (26) and the connection passage portion 17 (27).
  • the present invention is not limited to this.
  • path part is not specifically limited.
  • the shape and number of the flow paths may be arbitrarily set.
  • a curved heat exchange passage that is bent or curved may be provided instead of a linear heat exchange passage.
  • the number of branches of the connection passage portion may be other than the above-described four branches, eight branches, and nine branches, and may be the number of branches according to the number of heat exchange passages to be connected.
  • the flow paths 15 constituting each of the first fluid passage portions 11a to 11c may have different shapes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
PCT/JP2017/011612 2016-03-31 2017-03-23 拡散接合型熱交換器 Ceased WO2017170091A1 (ja)

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US16/081,312 US20190086155A1 (en) 2016-03-31 2017-03-23 Diffusion-Bonded Heat Exchanger
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JP7210151B2 (ja) 2018-03-30 2023-01-23 住友精密工業株式会社 拡散接合型熱交換器
KR102887437B1 (ko) * 2018-12-21 2025-11-17 닛폰 하츠죠 가부시키가이샤 접합 방법 및 접합체
IT201900020376A1 (it) * 2019-11-05 2021-05-05 Microchannel Devices S R L Metodo per la fabbricazione di dispositivi idraulici multi-tubazione monolitici, in particolare scambiatori di calore
FI20205367A1 (en) * 2020-04-06 2021-10-07 Vahterus Oy Plate heat exchanger arrangement
JP2024099428A (ja) 2023-01-12 2024-07-25 株式会社神戸製鋼所 マイクロチャネル型熱交換器
WO2025165091A1 (ko) * 2024-01-30 2025-08-07 박범용 열교환기와 그 제조 방법 및 열교환기를 포함하는 장치

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US20190086155A1 (en) 2019-03-21
JP6321067B2 (ja) 2018-05-09

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