WO2018016371A1 - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
WO2018016371A1
WO2018016371A1 PCT/JP2017/025164 JP2017025164W WO2018016371A1 WO 2018016371 A1 WO2018016371 A1 WO 2018016371A1 JP 2017025164 W JP2017025164 W JP 2017025164W WO 2018016371 A1 WO2018016371 A1 WO 2018016371A1
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WO
WIPO (PCT)
Prior art keywords
sheet
flow path
heat exchanger
medium flow
medium
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/JP2017/025164
Other languages
French (fr)
Japanese (ja)
Inventor
佳 酒川
一三 中村
和也 首藤
雄吾 松澤
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.)
Tokyo Radiator Mfg Co Ltd
Marelli Corp
Original Assignee
Tokyo Radiator Mfg Co Ltd
Calsonic Kansei Corp
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 Tokyo Radiator Mfg Co Ltd, Calsonic Kansei Corp filed Critical Tokyo Radiator Mfg Co Ltd
Publication of WO2018016371A1 publication Critical patent/WO2018016371A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
    • 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 stacked heat exchanger.
  • JP2014-088994A discloses a heat exchanger tube that improves heat radiation performance while suppressing an increase in the flow resistance of the heat exchange medium by forming a wave-like channel.
  • An object of the present invention is to provide a heat exchanger that can suppress an increase in flow resistance while improving heat dissipation performance.
  • a heat exchanger is a stacked heat exchanger formed by laminating a plurality of tube sheets, and the tube sheet includes a pair of first and second sheets facing each other, and the first sheet Formed between one sheet and the second sheet, and is formed at one end of the first sheet and the second sheet so as to communicate with a medium flow path through which a heat exchange medium flows, and in the stacking direction, A heat transfer medium in a medium flow path in which the heat exchange medium flows in the stacking direction of the tube sheet, and at least one of the first sheet and the second sheet is formed to protrude into the medium flow path.
  • the protrusion is formed to extend from one end of the first sheet or the second sheet in the heat exchange medium flow direction of the medium flow path, and the medium flow path and the stacking direction Medium flow Constituted by a stirring protrusions for stirring the heat exchange medium flowing a rectifying protrusion that adjust the flow of the heat exchange medium flows, the medium flow path between the.
  • the heat exchange medium flowing between the medium flow path and the stacking direction medium flow path is guided to the rectifying protrusion formed so as to extend in the flow direction of the heat exchange medium in the medium flow path.
  • the flow is arranged. Therefore, it is possible to suppress an increase in the flow resistance between the medium flow path and the stacking direction medium flow path that are orthogonal to each other and flow resistance is likely to increase.
  • the heat exchange medium flowing through the medium flow path after the flow is adjusted by the rectifying protrusion is stirred in the medium flow path by the stirring protrusion.
  • the heat exchange medium flowing through the medium flow path can easily exchange heat with an external fluid via the tube sheet. Therefore, the heat exchanger which can suppress the increase in distribution resistance more while improving heat dissipation performance can be provided.
  • FIG. 1 is a schematic configuration diagram of a stacked heat exchanger according to an embodiment of the present invention.
  • FIG. 2 is an exploded view of the heat exchanger.
  • FIG. 3 is an exploded view of the core.
  • FIG. 4 is a plan view of the tube sheet.
  • FIG. 5 is a perspective view showing the vicinity of the end of the rectifying protrusion of the tube sheet.
  • FIG. 6 is a plan view of a tube sheet according to a modification.
  • FIG. 7 is a plan view of a tube sheet according to a second modification.
  • FIG. 8 is a plan view of a tube sheet according to a third modification.
  • FIG. 9 is a plan view of a tube sheet according to a fourth modification.
  • FIG. 10 is a plan view of a tube sheet of a heat exchanger according to a comparative example.
  • FIG. 11 is a perspective view showing the vicinity of the end of the stirring protrusion of the heat exchanger according to the comparative example.
  • FIG. 1 is a schematic configuration diagram of a stacked heat exchanger 100 according to an embodiment of the present invention.
  • FIG. 2 is an exploded view of the heat exchanger 100
  • FIG. 3 is an exploded view of the core 10.
  • FIG. 4 is a plan view of the tube sheet 20
  • FIG. 5 is a perspective view showing the vicinity of the end portion 26 c of the rectifying protrusion 26 a of the tube sheet 20.
  • the heat exchanger 100 includes a core 10 formed by stacking a plurality of tube sheets 20 and a base member 30 attached to the core 10 as shown in FIGS. 1 and 2.
  • the heat exchanger 100 is installed, for example, in an intake passage of an engine (not shown).
  • the base member 30 has an upstream pipe 31 connected to the upstream side of the flow path of the engine coolant and a downstream pipe 32 connected to the downstream side of the flow path.
  • the core 10 includes a plurality of stacked tube sheets 20 and corrugated fins 11 disposed between the tube sheets 20.
  • the surface area of the core 10 is expanded, and the heat exchange efficiency is increased.
  • the tube sheet 20 includes a pair of first sheet 21 and second sheet 22 that face each other.
  • the first sheet 21 and the second sheet 22 are formed by press molding, for example. As shown in FIGS. 3 and 4, the first sheet 21 and the second sheet 22 are formed in a tray shape having a bottom surface 23 and a flange 24 formed on the outer peripheral edge of the bottom surface 23. A burring 25 is formed in a part near the outer peripheral edge of the bottom surface 23, and a protrusion 26 is formed in the center so as to extend toward the burring 25.
  • a medium flow path 40 through which cooling water as a heat exchange medium flows is formed.
  • the burrings 25 of the adjacent tube sheets 20 are connected to form a space as a tank in the stacking direction of the tube sheets 20.
  • the space functions as a stacking direction medium flow path 41 in which the cooling water of the medium flow path 40 flows in the stacking direction of the tube sheets 20. Therefore, the stacking direction medium flow path 41 is formed at one end of the first sheet 21 and the second sheet 22 so as to communicate with each other in the stacking direction.
  • stacked is performed by, for example, covering the part which each tube sheet 20 contacts previously with a brazing material, and brazing and fixing integrally in a furnace in the assembled state. .
  • the stacking direction medium flow path 41 communicates with the upstream pipe 31 and flows into the core 10 and flows in the cooling water into the core 10.
  • the laminating direction medium flow path 41 communicates with the downstream pipe 32 and flows out to flow out the cooling water in the core 10.
  • the side flow path 41b and the circulation flow path 41c for circulating the cooling water in the stacking direction of the tube sheet 20 are included.
  • the protruding portion 26 is formed on the first sheet 21 and the second sheet 22 so as to protrude into the medium flow path 40.
  • the first sheet 21 and the second sheet 22 are formed to have the same shape.
  • the protruding portion 26 is a flow of cooling water that circulates between the agitating protruding portion 26 b that stirs the cooling water flowing through the medium flow path 40, and the inflow side flow path 41 a or the outflow side flow path 41 b and the medium flow path 40. And a rectifying protrusion 26a for adjusting the flow rate.
  • the agitation protrusion 26b is bent and formed on the first sheet 21 and the second sheet 22 so as to have a wave shape with the same period. For this reason, the protrusions 26b for stirring formed on the first sheet 21 and the second sheet 22 are overlapped in an inverted state by stacking the first sheet 21 and the second sheet 22 so as to face each other. The pair of stirring protrusions 26b that are overlapped with each other come into contact with each other at each wave node. In this manner, the stirring protrusions 26b protrude so as to be half the thickness of the medium flow path 40, respectively, and block a part of the medium flow path 40.
  • the cooling water in the medium flow path 40 flows in the planar direction along the wavy shape of the pair of stirring protrusions 26b, and the thickness of the medium flow path 40 exceeds the respective stirring protrusions 26b. After being separated into the flow in the stacking direction flowing in the direction (stacking direction), the flow is mixed again.
  • the rectifying protrusion 26 a is formed so as to extend linearly from one end of the first sheet 21 or the second sheet 22 in the cooling water flow direction of the medium flow path 40.
  • the straightening protrusion 26a has one end extending toward the first sheet 21 or the second sheet 22 and the other end smoothly connected to the stirring protrusion 26b. Therefore, the cooling water flowing between the stack direction medium flow path 41 and the medium flow path 40 is guided to the rectifying protrusion 26a formed to extend linearly in the flow direction of the cooling water in the medium flow path. The flow is arranged.
  • the rectifying protrusions 26 a formed on the first sheet 21 and the second sheet 22 are stacked so that the first sheet 21 and the second sheet 22 are opposed to each other. It overlaps so that 26d may contact
  • the protruding end 26d of the rectifying protruding portion 26a of the first sheet 21 and the second sheet 22 is formed in a flat surface shape, and abuts each protruding end 26d facing each other so that the surface is in close contact. .
  • the first sheet 21 and the second sheet 22 are bonded to each other by forming the straightening protrusions 26a on the first sheet 21 and the second sheet 22 so as to have the protruding ends 26d facing each other. Wide area is secured.
  • FIG. 10 is a plan view of the tube sheet 920 of the heat exchanger 900 according to the comparative example
  • FIG. 11 is a perspective view showing the vicinity of the end 926c of the stirring protrusion 926b of the heat exchanger 900 according to the comparative example.
  • the heat exchanger 900 according to the comparative example does not have the rectifying protrusion 26 a unlike the heat exchanger 100 of the above embodiment. Therefore, the cooling water flowing between the medium flow path 940 and the stacking direction medium flow path 941 is not guided between the orthogonal medium flow path 940 and the stacking direction medium flow path 941 and the flow of the cooling water flowing between the medium flow path 940 and the stacking direction medium flow path 941. I can't arrange it. Further, in the heat exchanger 900 according to the comparative example, since the stirring protrusion 926b is formed up to one end of the first sheet 921 and the second sheet 922, as shown in FIG. 10 and FIG.
  • the first sheet 921 and the second sheet 922 are in contact with each other only at the node portion of the stirring protrusion 926b. Therefore, it becomes difficult to secure a sufficient joint surface for bringing the first sheet 921 and the second sheet 922 into close contact with each other.
  • the heat exchanger 100 is a stacked heat exchanger formed by laminating a plurality of tube sheets 20, and the tube sheet 20 includes a pair of first and second sheets 21, 22, and a first sheet 21. Formed between the first sheet 21 and the second sheet 22 and formed at one end of the first sheet 21 and the second sheet 22 so as to communicate with the medium flow path 40 through which cooling water as a heat exchange medium flows. And a stacking direction medium flow path 41 in which the cooling water of the medium flow path 40 flows in the stacking direction of the tube sheet 20. At least one of the first sheet 21 and the second sheet 22 has a protruding portion 26 formed so as to protrude into the medium flow path 40.
  • the protrusion 26 is formed to extend from one end of the first sheet 21 or the second sheet 22 in the flow direction of the cooling water in the medium flow path 40, and flows between the medium flow path 40 and the stacking direction medium flow path 41.
  • the rectifying protrusion 26a for adjusting the flow of the cooling water to be performed and the agitation protrusion 26b for stirring the cooling water flowing through the medium flow path 40 are configured.
  • the cooling water as the heat exchange medium flowing between the medium flow path 40 and the stacking direction medium flow path 41 extends in the flow direction of the cooling water in the medium flow path 40.
  • the flow is adjusted by being guided by the rectifying protrusion 26a that is formed to protrude to the right. Therefore, it is possible to suppress an increase in the flow resistance between the medium flow path 40 and the stacking direction medium flow path 41, which are orthogonal to each other and flow resistance is likely to increase.
  • the cooling water flowing through the medium flow path 40 after the flow is adjusted by the rectifying protrusion 26a, the medium flow path is formed by the stirring protrusion 26b formed so as to block the flow of the cooling water in the medium flow path 40. Stir in 40.
  • the cooling water flowing through the medium flow path 40 can easily exchange heat with the sucked air that is an external fluid via the tube sheet 20. Therefore, it is possible to provide the heat exchanger 100 that can further suppress an increase in distribution resistance while improving the heat dissipation performance.
  • At least one end 26c of the rectifying protrusion 26a of the heat exchanger 100 extends linearly toward the flow direction of the cooling water in the medium flow path 40.
  • the flow can be adjusted so that the cooling water flows stably and straightly in the flow direction of the cooling water in the medium flow path 40 by the straightening protrusions 26a extending linearly. Therefore, similarly, it is possible to provide the heat exchanger 100 that can further suppress the increase in flow resistance while improving the heat dissipation performance.
  • the first sheet 21 is formed with a rectifying protrusion 26a.
  • the second sheet 22 is formed with a rectifying protrusion 26 a having the same shape as the rectifying protrusion 26 a of the first sheet 21.
  • the rectifying protrusions 26a of the first sheet 21 and the second sheet 22 are stacked so that the protruding ends 26d abut each other by stacking the first sheet 21 and the second sheet 22 so as to face each other. Therefore, since the protruding end 26d of the rectifying protruding portion 26a can be brought into close contact with each other, the bonding strength between the first sheet 21 and the second sheet 22 can be increased.
  • the stirring protrusion 26b bends in a wave shape. Therefore, the stirring protrusion 26b of the first sheet 21 and the second sheet 22 can be stirred so as to repeat separation and mixing by guiding the cooling water in the medium flow path 40 in a wave shape. Moreover, the heat exchange efficiency of the cooling water between the air and the fin 11 can be increased.
  • the first sheet 21 and the second sheet 22 are respectively formed with the protruding portions 26b for stirring having the same shape.
  • the stirring protrusion 26b is formed by laminating the first sheet 21 and the second sheet 22 so as to face each other, so that the wavy nodes overlap with each other in a state of being inverted.
  • the cooling water flowing through the medium flow path 40 also flows in the thickness direction of the medium flow path 40 so as to pass over portions (particularly antinodes) other than the wavy nodes of the stirring protrusions 26b.
  • the cooling water in 40 can be stirred more efficiently. Therefore, the heat exchange efficiency of the cooling water between the air through the bottom surface 23 and the fins 11 can be further increased.
  • the protrusion 26 may be formed only on one of the first sheet 21 and the second sheet 22. Further, the protruding portion 26 of the first sheet 21 may be formed to have a different shape from the protruding portion 26 of the second sheet 22.
  • the rectifying protrusion 226a may be formed so as to adjust the flow of the cooling water flowing between the circulation channel 41c and the medium channel 40 as shown in FIG.
  • FIG. 6 is a plan view of a tube sheet 220 according to a modification.
  • the rectifying protrusion 226a and the rectifying protrusion 226a are smoothly connected to both ends of the stirring protrusion 226b. According to such an aspect, the cooling water flowing between the circulation flow path 41c and the medium flow path 40 is guided by the rectifying protrusion 226a to adjust the flow, so that the circulation flow path 41c and the medium flow path are adjusted. An increase in the flow resistance between 40 and 40 can also be suppressed.
  • FIG. 7 is a plan view of the tube sheet 320 according to the second modification
  • FIG. 8 is a plan view of the tube sheet 420 according to the third modification.
  • the medium flow path 340 is formed in a U shape.
  • the cooling water flowing into the medium flow path 340 from the inflow side flow path 341a flows out of the outflow side flow path 341b after flowing through the medium flow path 340 in a U shape.
  • the stirring protrusion 326b according to the second modification is formed on the bottom surface 323 of the tube sheet 320 so as to be line symmetric as shown in FIG. Therefore, by laminating the first sheet 321 and the second sheet 322 of the tube sheet 320 according to the second modification so as to face each other, the agitation protrusions 326b overlap so that the protrusion ends 326c abut each other. Therefore, not only the protruding end 326d of the rectifying protruding portion 326a but also the protruding end 326c of the stirring protruding portion 326b can be brought into close contact with each other, so that the bonding strength between the first sheet 321 and the second sheet 322 can be further increased. Can be increased.
  • the tube sheet 420 according to the third modification also has a medium flow path 440 formed in a U shape.
  • the cooling water flowing into the medium flow path 440 from the inflow side flow path 441a flows out of the outflow side flow path 441b after flowing through the medium flow path 440 in a U shape.
  • the stirring protrusion 426b according to the third modification is formed on the bottom surface 423 of the tube sheet 420 so as to be non-symmetrical as shown in FIG. Therefore, when the first sheet 421 and the second sheet 422 of the tube sheet 420 according to the third modification are stacked so as to face each other, the stirring protrusion 426b does not contact the facing stirring protrusion 426b.
  • the flow path 440 is half blocked in the thickness direction. Therefore, since the cooling water flowing through the medium flow path 440 is easily stirred in the thickness direction and the width direction of the medium flow path 440 by the respective stirring protrusions 426b, the heat exchange efficiency of the cooling water can be increased. .
  • the stirring protrusion 526b may be formed in a fin shape as shown in FIG.
  • FIG. 9 is a plan view of a tube sheet 520 according to a fourth modification.
  • the cooling water flowing through the medium flow path 540 can also be efficiently stirred by the stirring protrusion 526b formed in such a fin shape.

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

Abstract

A laminated heat exchanger (100), wherein a tube sheet (20) is provided with: a pair comprising a first sheet (21) and a second sheet (22) that face each other; a medium channel (40) in which cooling water serving as a heat exchange medium circulates; and a medium channel in the direction of lamination (41) in which the cooling water in the medium channel (40) flows in the direction of lamination of the tube sheet (20). The first sheet (21) and the second sheet (22) have a projection (26) formed so as to project into the medium channel (40). The projection (26) comprises a rectifying projection (26a) that regulates the flow of cooling water circulating between the medium channel (40) and the medium channel in the direction of lamination (41), and a stirring projection (26b) that stirs the cooling water circulating in the medium channel (40).

Description

熱交換器Heat exchanger

　本発明は、積層型の熱交換器に関する。 The present invention relates to a stacked heat exchanger.

　ＪＰ２０１４－０８８９９４Ａには、波状の流路を形成することによって熱交換媒体の流通抵抗の増加を抑えつつ放熱性能を向上させる熱交換器用チューブが開示されている。 JP2014-088994A discloses a heat exchanger tube that improves heat radiation performance while suppressing an increase in the flow resistance of the heat exchange medium by forming a wave-like channel.

　しかしながら、ＪＰ２０１４－０８８９９４Ａの熱交換器用チューブでは、熱交換媒体の流れを考慮して最適な流路が形成されているとはいえず、流通抵抗の増加を抑制できる余地をなお残している。 However, in the tube for heat exchanger of JP2014-088994A, an optimal flow path is not formed in consideration of the flow of the heat exchange medium, and there is still room for suppressing an increase in flow resistance.

　本発明は、放熱性能を向上させつつ流通抵抗の増加をより抑えることのできる熱交換器を提供することを目的とする。 An object of the present invention is to provide a heat exchanger that can suppress an increase in flow resistance while improving heat dissipation performance.

　本発明のある態様による熱交換器は、複数のチューブシートを積層してなる積層型の熱交換器であって、前記チューブシートは、対向する一対の第１シートおよび第２シートと、前記第１シートと前記第２シートとの間に形成され、内部に熱交換媒体が流通する媒体流路と、積層方向に連通するように前記第１シートおよび前記第２シートの一端に形成され、前記媒体流路の熱交換媒体が前記チューブシートの積層方向に流れる積層方向媒体流路と、を備え、前記第１シートおよび前記第２シートの少なくとも一方は、前記媒体流路に突出するよう形成される突出部を有し、前記突出部は、前記第１シートまたは前記第２シートの一端から前記媒体流路の熱交換媒体の流れ方向に延びるように形成され、前記媒体流路と前記積層方向媒体流路との間を流通する熱交換媒体の流れを整える整流用突出部と、前記媒体流路を流通する熱交換媒体を撹拌する撹拌用突出部と、から構成される。 A heat exchanger according to an aspect of the present invention is a stacked heat exchanger formed by laminating a plurality of tube sheets, and the tube sheet includes a pair of first and second sheets facing each other, and the first sheet Formed between one sheet and the second sheet, and is formed at one end of the first sheet and the second sheet so as to communicate with a medium flow path through which a heat exchange medium flows, and in the stacking direction, A heat transfer medium in a medium flow path in which the heat exchange medium flows in the stacking direction of the tube sheet, and at least one of the first sheet and the second sheet is formed to protrude into the medium flow path. And the protrusion is formed to extend from one end of the first sheet or the second sheet in the heat exchange medium flow direction of the medium flow path, and the medium flow path and the stacking direction Medium flow Constituted by a stirring protrusions for stirring the heat exchange medium flowing a rectifying protrusion that adjust the flow of the heat exchange medium flows, the medium flow path between the.

　上記態様によれば、媒体流路と積層方向媒体流路との間を流通する熱交換媒体は、媒体流路の熱交換媒体の流れ方向に延びるように突出形成された整流用突出部に案内されることによって、流れが整えられる。そのため、直交する流れとなり流通抵抗が増加しやすい媒体流路と積層方向媒体流路との間における流通抵抗の増加を抑制することができる。また、整流用突出部によって流れが整えられた後に媒体流路を流通する熱交換媒体は、撹拌用突出部によって媒体流路内で撹拌される。その結果、媒体流路を流通する熱交換媒体がチューブシートを介して外部の流体と熱交換を行いやすくなる。したがって、放熱性能を向上させつつ流通抵抗の増加をより抑えることのできる熱交換器を提供することができる。 According to the above aspect, the heat exchange medium flowing between the medium flow path and the stacking direction medium flow path is guided to the rectifying protrusion formed so as to extend in the flow direction of the heat exchange medium in the medium flow path. By doing so, the flow is arranged. Therefore, it is possible to suppress an increase in the flow resistance between the medium flow path and the stacking direction medium flow path that are orthogonal to each other and flow resistance is likely to increase. In addition, the heat exchange medium flowing through the medium flow path after the flow is adjusted by the rectifying protrusion is stirred in the medium flow path by the stirring protrusion. As a result, the heat exchange medium flowing through the medium flow path can easily exchange heat with an external fluid via the tube sheet. Therefore, the heat exchanger which can suppress the increase in distribution resistance more while improving heat dissipation performance can be provided.

図１は、本発明の実施形態に係る積層型の熱交換器の概略構成図である。FIG. 1 is a schematic configuration diagram of a stacked heat exchanger according to an embodiment of the present invention. 図２は、熱交換器を分解した図である。FIG. 2 is an exploded view of the heat exchanger. 図３は、コアを分解した図である。FIG. 3 is an exploded view of the core. 図４は、チューブシートの平面図である。FIG. 4 is a plan view of the tube sheet. 図５は、チューブシートの整流用突出部の端部付近を示す斜視図である。FIG. 5 is a perspective view showing the vicinity of the end of the rectifying protrusion of the tube sheet. 図６は、変形例に係るチューブシートの平面図である。FIG. 6 is a plan view of a tube sheet according to a modification. 図７は、第２の変形例に係るチューブシートの平面図である。FIG. 7 is a plan view of a tube sheet according to a second modification. 図８は、第３の変形例に係るチューブシートの平面図である。FIG. 8 is a plan view of a tube sheet according to a third modification. 図９は、第４の変形例に係るチューブシートに平面図である。FIG. 9 is a plan view of a tube sheet according to a fourth modification. 図１０は、比較例に係る熱交換器のチューブシートの平面図である。FIG. 10 is a plan view of a tube sheet of a heat exchanger according to a comparative example. 図１１は、比較例に係る熱交換器の撹拌用突出部の端部付近を示す斜視図である。FIG. 11 is a perspective view showing the vicinity of the end of the stirring protrusion of the heat exchanger according to the comparative example.

　以下、図面を参照して、本発明の実施形態について説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

　図１は、本発明の実施形態に係る積層型の熱交換器１００の概略構成図である。図２は熱交換器１００を分解した図であり、図３はコア１０を分解した図である。図４はチューブシート２０の平面図であり、図５は、チューブシート２０の整流用突出部２６ａの端部２６ｃ付近を示す斜視図である。 FIG. 1 is a schematic configuration diagram of a stacked heat exchanger 100 according to an embodiment of the present invention. FIG. 2 is an exploded view of the heat exchanger 100, and FIG. 3 is an exploded view of the core 10. FIG. 4 is a plan view of the tube sheet 20, and FIG. 5 is a perspective view showing the vicinity of the end portion 26 c of the rectifying protrusion 26 a of the tube sheet 20.

　熱交換器１００は、図１および図２に示すように、複数のチューブシート２０を積層してなるコア１０と、コア１０に取り付けられるベース部材３０と、を備える。熱交換器１００は、例えば、図示しないエンジンの吸気通路内に設置される。 The heat exchanger 100 includes a core 10 formed by stacking a plurality of tube sheets 20 and a base member 30 attached to the core 10 as shown in FIGS. 1 and 2. The heat exchanger 100 is installed, for example, in an intake passage of an engine (not shown).

　ベース部材３０は、エンジンの冷却水の流通流路の上流側に接続される上流側パイプ３１と、流路の下流側に接続される下流側パイプ３２と、を有する。これにより、エアインテークマニホールド内に吸入した空気がコア１０を通過するときに、冷却水との間で熱交換が行われ、吸入した空気が冷却される。 The base member 30 has an upstream pipe 31 connected to the upstream side of the flow path of the engine coolant and a downstream pipe 32 connected to the downstream side of the flow path. Thereby, when the air suck | inhaled in the air intake manifold passes the core 10, heat exchange is performed between cooling water and the suck | inhaled air is cooled.

　コア１０は、図３に示すように、複数の積層されたチューブシート２０と、チューブシート２０の間に配設されるコルゲート状のフィン１１と、を有する。フィン１１を備えることによってコア１０の表面積が拡大し、熱交換効率が高くなる。 As shown in FIG. 3, the core 10 includes a plurality of stacked tube sheets 20 and corrugated fins 11 disposed between the tube sheets 20. By providing the fins 11, the surface area of the core 10 is expanded, and the heat exchange efficiency is increased.

　チューブシート２０は、対向する一対の第１シート２１と第２シート２２とから構成される。 The tube sheet 20 includes a pair of first sheet 21 and second sheet 22 that face each other.

　第１シート２１および第２シート２２は、例えば、プレス成形によって形成される。第１シート２１および第２シート２２には、図３および図４に示すように、底面２３と、底面２３の外周縁に形成されるフランジ２４と、を有するトレイ状に形成される。底面２３の外周縁付近の一部にはバーリング２５が形成され、中央部にはバーリング２５に向かって延びるように突出部２６が形成される。 The first sheet 21 and the second sheet 22 are formed by press molding, for example. As shown in FIGS. 3 and 4, the first sheet 21 and the second sheet 22 are formed in a tray shape having a bottom surface 23 and a flange 24 formed on the outer peripheral edge of the bottom surface 23. A burring 25 is formed in a part near the outer peripheral edge of the bottom surface 23, and a protrusion 26 is formed in the center so as to extend toward the burring 25.

　また、チューブシート２０の内部、すなわち第１シート２１と第２シート２２とによって囲まれた扁平な空間には、熱交換媒体としての冷却水が流通する媒体流路４０が形成される。このように形成することによって熱交換器１００の作動時に、媒体流路４０を流通する冷却水と吸入した空気との間でチューブシート２０の底面２３やフィン１１を介した熱交換が行われる。なお、冷却水には、例えば不凍液が用いられる。 Further, in the flat space surrounded by the tube sheet 20, that is, the first sheet 21 and the second sheet 22, a medium flow path 40 through which cooling water as a heat exchange medium flows is formed. By forming in this way, when the heat exchanger 100 is operated, heat exchange is performed between the cooling water flowing through the medium flow path 40 and the sucked air through the bottom surface 23 of the tube sheet 20 and the fins 11. For example, an antifreeze is used as the cooling water.

　図２に示すように複数のチューブシート２０を積層させることによって、隣接するチューブシート２０のバーリング２５が連なって、チューブシート２０の積層方向にタンクとしての空間を形成する。当該空間は、媒体流路４０の冷却水がチューブシート２０の積層方向に流れる積層方向媒体流路４１として機能する。したがって、積層方向媒体流路４１は、積層方向に連通するように第１シート２１および第２シート２２の一端に形成されることになる。なお、積層させた各チューブシート２０間の接合は、例えば、各チューブシート２０が接触する部分に予めロウ材を被覆し、組み立てた状態で炉内にて一体にロウ付け固定することによって行われる。 2, by stacking a plurality of tube sheets 20, the burrings 25 of the adjacent tube sheets 20 are connected to form a space as a tank in the stacking direction of the tube sheets 20. The space functions as a stacking direction medium flow path 41 in which the cooling water of the medium flow path 40 flows in the stacking direction of the tube sheets 20. Therefore, the stacking direction medium flow path 41 is formed at one end of the first sheet 21 and the second sheet 22 so as to communicate with each other in the stacking direction. In addition, joining between each tube sheet 20 laminated | stacked is performed by, for example, covering the part which each tube sheet 20 contacts previously with a brazing material, and brazing and fixing integrally in a furnace in the assembled state. .

　積層方向媒体流路４１は、上流側パイプ３１と連通してコア１０内に冷却水を流入させる流入側流路４１ａと、下流側パイプ３２と連通してコア１０内の冷却水を流出させる流出側流路４１ｂと、チューブシート２０の積層方向に冷却水を循環させる循環流路４１ｃと、からなる。 The stacking direction medium flow path 41 communicates with the upstream pipe 31 and flows into the core 10 and flows in the cooling water into the core 10. The laminating direction medium flow path 41 communicates with the downstream pipe 32 and flows out to flow out the cooling water in the core 10. The side flow path 41b and the circulation flow path 41c for circulating the cooling water in the stacking direction of the tube sheet 20 are included.

　突出部２６は、媒体流路４０に突出するように第１シート２１および第２シート２２に形成される。第１シート２１と第２シート２２とは、同一の形状となるように形成される。 The protruding portion 26 is formed on the first sheet 21 and the second sheet 22 so as to protrude into the medium flow path 40. The first sheet 21 and the second sheet 22 are formed to have the same shape.

　突出部２６は、媒体流路４０を流通する冷却水を撹拌する撹拌用突出部２６ｂと、流入側流路４１ａまたは流出側流路４１ｂと媒体流路４０との間を流通する冷却水の流れを整える整流用突出部２６ａと、から構成される。 The protruding portion 26 is a flow of cooling water that circulates between the agitating protruding portion 26 b that stirs the cooling water flowing through the medium flow path 40, and the inflow side flow path 41 a or the outflow side flow path 41 b and the medium flow path 40. And a rectifying protrusion 26a for adjusting the flow rate.

　撹拌用突出部２６ｂは、第１シート２１および第２シート２２に同一周期の波状になるように屈曲形成される。このため、第１シート２１および第２シート２２に形成される撹拌用突出部２６ｂは、第１シート２１および第２シート２２を対向するように積層させることで、互いに反転した状態で重なり合う。そして、重なり合った一対の撹拌用突出部２６ｂは、それぞれの波の節の部分で互いに当接する。このように、撹拌用突出部２６ｂは、それぞれ媒体流路４０の厚みの半分の高さとなるように突出して、媒体流路４０の一部を遮る。 The agitation protrusion 26b is bent and formed on the first sheet 21 and the second sheet 22 so as to have a wave shape with the same period. For this reason, the protrusions 26b for stirring formed on the first sheet 21 and the second sheet 22 are overlapped in an inverted state by stacking the first sheet 21 and the second sheet 22 so as to face each other. The pair of stirring protrusions 26b that are overlapped with each other come into contact with each other at each wave node. In this manner, the stirring protrusions 26b protrude so as to be half the thickness of the medium flow path 40, respectively, and block a part of the medium flow path 40.

　その結果、媒体流路４０の冷却水は、一対の撹拌用突出部２６ｂの波状の形状に沿って流れる平面方向の流れと、それぞれの撹拌用突出部２６ｂを越えるように媒体流路４０の厚み方向（積層方向）に流れる積層方向の流れと、に分離された後、再び混合されるような流れを繰り返す。 As a result, the cooling water in the medium flow path 40 flows in the planar direction along the wavy shape of the pair of stirring protrusions 26b, and the thickness of the medium flow path 40 exceeds the respective stirring protrusions 26b. After being separated into the flow in the stacking direction flowing in the direction (stacking direction), the flow is mixed again.

　整流用突出部２６ａは、第１シート２１または第２シート２２の一端から媒体流路４０の冷却水の流れ方向に直線状に延びるように形成される。具体的には、整流用突出部２６ａは、一端が第１シート２１または第２シート２２に向かって延び、他端が撹拌用突出部２６ｂに滑らかに接続される。したがって、積層方向媒体流路４１と媒体流路４０との間を流通する冷却水は、媒体流路の冷却水の流れ方向に直線状に延びるように形成された整流用突出部２６ａに案内されることによって、流れが整えられる。 The rectifying protrusion 26 a is formed so as to extend linearly from one end of the first sheet 21 or the second sheet 22 in the cooling water flow direction of the medium flow path 40. Specifically, the straightening protrusion 26a has one end extending toward the first sheet 21 or the second sheet 22 and the other end smoothly connected to the stirring protrusion 26b. Therefore, the cooling water flowing between the stack direction medium flow path 41 and the medium flow path 40 is guided to the rectifying protrusion 26a formed to extend linearly in the flow direction of the cooling water in the medium flow path. The flow is arranged.

　第１シート２１および第２シート２２に形成される整流用突出部２６ａは、図５に示すように、第１シート２１および第２シート２２を対向するように積層させることで、それぞれの突出端２６ｄが当接するように重なり合う。第１シート２１および第２シート２２の整流用突出部２６ａの突出端２６ｄは、表面が平坦な面状に形成されており、対向するそれぞれの突出端２６ｄと当該表面が密着するように当接する。このように、対向する突出端２６ｄを備えるように整流用突出部２６ａを第１シート２１および第２シート２２に形成することによって、第１シート２１と第２シート２２とを密着させるための接合面が広く確保される。 As shown in FIG. 5, the rectifying protrusions 26 a formed on the first sheet 21 and the second sheet 22 are stacked so that the first sheet 21 and the second sheet 22 are opposed to each other. It overlaps so that 26d may contact | abut. The protruding end 26d of the rectifying protruding portion 26a of the first sheet 21 and the second sheet 22 is formed in a flat surface shape, and abuts each protruding end 26d facing each other so that the surface is in close contact. . In this manner, the first sheet 21 and the second sheet 22 are bonded to each other by forming the straightening protrusions 26a on the first sheet 21 and the second sheet 22 so as to have the protruding ends 26d facing each other. Wide area is secured.

　これに対して、図１０および図１１に示すような比較例に係る熱交換器９００の場合には、撹拌用突出部９２６ｂが第１シート９２１および第２シート９２２の一端まで形成されている。図１０は比較例に係る熱交換器９００のチューブシート９２０の平面図であり、図１１は比較例に係る熱交換器９００の撹拌用突出部９２６ｂの端部９２６ｃ付近を示す斜視図である。 On the other hand, in the case of the heat exchanger 900 according to the comparative example as shown in FIGS. 10 and 11, the stirring protrusion 926 b is formed up to one end of the first sheet 921 and the second sheet 922. FIG. 10 is a plan view of the tube sheet 920 of the heat exchanger 900 according to the comparative example, and FIG. 11 is a perspective view showing the vicinity of the end 926c of the stirring protrusion 926b of the heat exchanger 900 according to the comparative example.

　比較例に係る熱交換器９００は、図１０に示すように、上記実施形態の熱交換器１００のように整流用突出部２６ａを有していない。そのため、直交する媒体流路９４０と積層方向媒体流路９４１との間における冷却水が案内されることがなく、媒体流路９４０と積層方向媒体流路９４１との間を流通する冷却水の流れを整えることができない。また、比較例に係る熱交換器９００は、撹拌用突出部９２６ｂが第１シート９２１および第２シート９２２の一端まで形成されているので、図１０および図１１に示すように、対向する波状の撹拌用突出部９２６ｂにおける節の部分のみで第１シート９２１と第２シート９２２とは互いに当接することなる。そのため、第１シート９２１と第２シート９２２とを密着させるための接合面を十分に確保することが難しくなる。 As shown in FIG. 10, the heat exchanger 900 according to the comparative example does not have the rectifying protrusion 26 a unlike the heat exchanger 100 of the above embodiment. Therefore, the cooling water flowing between the medium flow path 940 and the stacking direction medium flow path 941 is not guided between the orthogonal medium flow path 940 and the stacking direction medium flow path 941 and the flow of the cooling water flowing between the medium flow path 940 and the stacking direction medium flow path 941. I can't arrange it. Further, in the heat exchanger 900 according to the comparative example, since the stirring protrusion 926b is formed up to one end of the first sheet 921 and the second sheet 922, as shown in FIG. 10 and FIG. The first sheet 921 and the second sheet 922 are in contact with each other only at the node portion of the stirring protrusion 926b. Therefore, it becomes difficult to secure a sufficient joint surface for bringing the first sheet 921 and the second sheet 922 into close contact with each other.

　以上の実施形態によれば、以下に示す効果を奏する。 According to the above embodiment, the following effects are obtained.

　熱交換器１００は、複数のチューブシート２０を積層してなる積層型の熱交換器であって、チューブシート２０は、対向する一対の第１シート２１および第２シート２２と、第１シート２１と第２シート２２との間に形成され、内部に熱交換媒体としての冷却水が流通する媒体流路４０と、積層方向に連通するように第１シート２１および第２シート２２の一端に形成され、媒体流路４０の冷却水がチューブシート２０の積層方向に流れる積層方向媒体流路４１と、を備える。第１シート２１および第２シート２２の少なくとも一方は、媒体流路４０に突出するよう形成される突出部２６を有する。突出部２６は、第１シート２１または第２シート２２の一端から媒体流路４０の冷却水の流れ方向に延びるように形成され、媒体流路４０と積層方向媒体流路４１との間を流通する冷却水の流れを整える整流用突出部２６ａと、媒体流路４０を流通する冷却水を撹拌する撹拌用突出部２６ｂと、から構成される。 The heat exchanger 100 is a stacked heat exchanger formed by laminating a plurality of tube sheets 20, and the tube sheet 20 includes a pair of first and second sheets 21, 22, and a first sheet 21. Formed between the first sheet 21 and the second sheet 22 and formed at one end of the first sheet 21 and the second sheet 22 so as to communicate with the medium flow path 40 through which cooling water as a heat exchange medium flows. And a stacking direction medium flow path 41 in which the cooling water of the medium flow path 40 flows in the stacking direction of the tube sheet 20. At least one of the first sheet 21 and the second sheet 22 has a protruding portion 26 formed so as to protrude into the medium flow path 40. The protrusion 26 is formed to extend from one end of the first sheet 21 or the second sheet 22 in the flow direction of the cooling water in the medium flow path 40, and flows between the medium flow path 40 and the stacking direction medium flow path 41. The rectifying protrusion 26a for adjusting the flow of the cooling water to be performed and the agitation protrusion 26b for stirring the cooling water flowing through the medium flow path 40 are configured.

　このような熱交換器１００によれば、媒体流路４０と積層方向媒体流路４１との間を流通する熱交換媒体としての冷却水は、媒体流路４０の冷却水の流れ方向に延びるように突出形成された整流用突出部２６ａに案内されることによって、流れが整えられる。そのため、直交する流れとなり流通抵抗が増加しやすい媒体流路４０と積層方向媒体流路４１との間における流通抵抗の増加を抑制することができる。また、整流用突出部２６ａによって流れが整えられた後に媒体流路４０を流通する冷却水は、媒体流路４０の冷却水の流れを遮るように形成された撹拌用突出部２６ｂによって媒体流路４０内で撹拌される。その結果、媒体流路４０を流通する冷却水がチューブシート２０を介して外部の流体である吸入した空気と熱交換を行いやすくなる。したがって、放熱性能を向上させつつ流通抵抗の増加をより抑えることのできる熱交換器１００を提供することができる。 According to such a heat exchanger 100, the cooling water as the heat exchange medium flowing between the medium flow path 40 and the stacking direction medium flow path 41 extends in the flow direction of the cooling water in the medium flow path 40. The flow is adjusted by being guided by the rectifying protrusion 26a that is formed to protrude to the right. Therefore, it is possible to suppress an increase in the flow resistance between the medium flow path 40 and the stacking direction medium flow path 41, which are orthogonal to each other and flow resistance is likely to increase. In addition, the cooling water flowing through the medium flow path 40 after the flow is adjusted by the rectifying protrusion 26a, the medium flow path is formed by the stirring protrusion 26b formed so as to block the flow of the cooling water in the medium flow path 40. Stir in 40. As a result, the cooling water flowing through the medium flow path 40 can easily exchange heat with the sucked air that is an external fluid via the tube sheet 20. Therefore, it is possible to provide the heat exchanger 100 that can further suppress an increase in distribution resistance while improving the heat dissipation performance.

　また、熱交換器１００の整流用突出部２６ａは、少なくとも一方の端部２６ｃが媒体流路４０の冷却水の流れ方向に向かって直線状に延びる。その結果、直線状に延びる整流用突出部２６ａによって、冷却水が媒体流路４０の冷却水の流れ方向に向かって安定して真っ直ぐ流れるように、流れを整えることができる。したがって、同様に、放熱性能を向上させつつ流通抵抗の増加をより抑えることのできる熱交換器１００を提供することができる。 Further, at least one end 26c of the rectifying protrusion 26a of the heat exchanger 100 extends linearly toward the flow direction of the cooling water in the medium flow path 40. As a result, the flow can be adjusted so that the cooling water flows stably and straightly in the flow direction of the cooling water in the medium flow path 40 by the straightening protrusions 26a extending linearly. Therefore, similarly, it is possible to provide the heat exchanger 100 that can further suppress the increase in flow resistance while improving the heat dissipation performance.

　さらに、熱交換器１００では、第１シート２１には、整流用突出部２６ａが形成される。第２シート２２には、第１シート２１の整流用突出部２６ａと同一形状の整流用突出部２６ａが形成される。第１シート２１および第２シート２２の整流用突出部２６ａは、第１シート２１および第２シート２２を対向するように積層させることで、互いに突出端２６ｄが当接するように重なり合う。そのため、整流用突出部２６ａの突出端２６ｄを密着させて接合することができるので、第１シート２１と第２シート２２との接合強度を高めることができる。 Furthermore, in the heat exchanger 100, the first sheet 21 is formed with a rectifying protrusion 26a. The second sheet 22 is formed with a rectifying protrusion 26 a having the same shape as the rectifying protrusion 26 a of the first sheet 21. The rectifying protrusions 26a of the first sheet 21 and the second sheet 22 are stacked so that the protruding ends 26d abut each other by stacking the first sheet 21 and the second sheet 22 so as to face each other. Therefore, since the protruding end 26d of the rectifying protruding portion 26a can be brought into close contact with each other, the bonding strength between the first sheet 21 and the second sheet 22 can be increased.

　また、熱交換器１００では、撹拌用突出部２６ｂは、波状に屈曲する。そのため、第１シート２１および第２シート２２の撹拌用突出部２６ｂによって、媒体流路４０の冷却水を波状に案内することで分離と混合とを繰り返すように撹拌することができるので、底面２３やフィン１１を介して空気との間における冷却水の熱交換効率を高くすることができる。 Moreover, in the heat exchanger 100, the stirring protrusion 26b bends in a wave shape. Therefore, the stirring protrusion 26b of the first sheet 21 and the second sheet 22 can be stirred so as to repeat separation and mixing by guiding the cooling water in the medium flow path 40 in a wave shape. Moreover, the heat exchange efficiency of the cooling water between the air and the fin 11 can be increased.

　さらに、熱交換器１００では、第１シート２１および第２シート２２には、同一形状の撹拌用突出部２６ｂがそれぞれ形成される。撹拌用突出部２６ｂは、第１シート２１および第２シート２２を対向するように積層させることで、互いに反転した状態で波状の節と節とが重なり合う。そのため、媒体流路４０を流通する冷却水は、それぞれの撹拌用突出部２６ｂの波状の節以外の部分（特に腹）を越えるように媒体流路４０の厚み方向にも流れるので、媒体流路４０内における冷却水をより効率よく撹拌することができる。したがって、底面２３やフィン１１を介して空気との間における冷却水の熱交換効率をより高くすることができる。 Furthermore, in the heat exchanger 100, the first sheet 21 and the second sheet 22 are respectively formed with the protruding portions 26b for stirring having the same shape. The stirring protrusion 26b is formed by laminating the first sheet 21 and the second sheet 22 so as to face each other, so that the wavy nodes overlap with each other in a state of being inverted. For this reason, the cooling water flowing through the medium flow path 40 also flows in the thickness direction of the medium flow path 40 so as to pass over portions (particularly antinodes) other than the wavy nodes of the stirring protrusions 26b. The cooling water in 40 can be stirred more efficiently. Therefore, the heat exchange efficiency of the cooling water between the air through the bottom surface 23 and the fins 11 can be further increased.

　なお、突出部２６は、第１シート２１および第２シート２２の一方のみに形成されることとしてもよい。また、第１シート２１の突出部２６は、第２シート２２の突出部２６と異なる形状となるように形成されてもよい。 The protrusion 26 may be formed only on one of the first sheet 21 and the second sheet 22. Further, the protruding portion 26 of the first sheet 21 may be formed to have a different shape from the protruding portion 26 of the second sheet 22.

　以上、本発明の実施形態について説明したが、上記実施形態は本発明の適用例の一部を示したに過ぎず、本発明の技術的範囲を上記実施形態の具体的構成に限定する趣旨ではない。 The embodiment of the present invention has been described above. However, the above embodiment only shows a part of application examples of the present invention, and the technical scope of the present invention is limited to the specific configuration of the above embodiment. Absent.

　例えば、整流用突出部２２６ａは、図６に示すように、循環流路４１ｃと媒体流路４０との間を流通する冷却水の流れを整えるように形成されてもよい。図６は、変形例に係るチューブシート２２０の平面図である。 For example, the rectifying protrusion 226a may be formed so as to adjust the flow of the cooling water flowing between the circulation channel 41c and the medium channel 40 as shown in FIG. FIG. 6 is a plan view of a tube sheet 220 according to a modification.

　撹拌用突出部２２６ｂの両端には、整流用突出部２２６ａと整流用突出部２２６ａとがそれぞれ滑らかに接続されることになる。このような態様によれば、循環流路４１ｃと媒体流路４０との間を流通する冷却水は、整流用突出部２２６ａに案内されて流れが整えられるので、循環流路４１ｃと媒体流路４０との間における流通抵抗の増加も抑制することができる。 The rectifying protrusion 226a and the rectifying protrusion 226a are smoothly connected to both ends of the stirring protrusion 226b. According to such an aspect, the cooling water flowing between the circulation flow path 41c and the medium flow path 40 is guided by the rectifying protrusion 226a to adjust the flow, so that the circulation flow path 41c and the medium flow path are adjusted. An increase in the flow resistance between 40 and 40 can also be suppressed.

　また、撹拌用突出部３２６ｂは、図７や図８に示すように、円柱状に複数形成されてもよい。図７は第２の変形例に係るチューブシート３２０の平面図であり、図８は第３の変形例に係るチューブシート４２０の平面図である。 Also, as shown in FIGS. 7 and 8, a plurality of stirring protrusions 326b may be formed in a columnar shape. FIG. 7 is a plan view of the tube sheet 320 according to the second modification, and FIG. 8 is a plan view of the tube sheet 420 according to the third modification.

　第２の変形例に係るチューブシート３２０では、媒体流路３４０がＵ字状に形成されている。流入側流路３４１ａから媒体流路３４０へと流入した冷却水は、媒体流路３４０をＵ字状に流通した後、流出側流路３４１ｂから流出する。 In the tube sheet 320 according to the second modification, the medium flow path 340 is formed in a U shape. The cooling water flowing into the medium flow path 340 from the inflow side flow path 341a flows out of the outflow side flow path 341b after flowing through the medium flow path 340 in a U shape.

　第２の変形例に係る撹拌用突出部３２６ｂは、図７に示すように、チューブシート３２０の底面３２３上に線対称となるように形成される。そのため、第２変形例に係るチューブシート３２０の第１シート３２１および第２シート３２２を対向するように積層させることで、撹拌用突出部３２６ｂは互いに突出端３２６ｃが当接するように重なり合う。そのため、整流用突出部３２６ａの突出端３２６ｄだけでなく、撹拌用突出部３２６ｂの突出端３２６ｃも密着させて接合することができるので、第１シート３２１と第２シート３２２との接合強度をより高めることができる。 The stirring protrusion 326b according to the second modification is formed on the bottom surface 323 of the tube sheet 320 so as to be line symmetric as shown in FIG. Therefore, by laminating the first sheet 321 and the second sheet 322 of the tube sheet 320 according to the second modification so as to face each other, the agitation protrusions 326b overlap so that the protrusion ends 326c abut each other. Therefore, not only the protruding end 326d of the rectifying protruding portion 326a but also the protruding end 326c of the stirring protruding portion 326b can be brought into close contact with each other, so that the bonding strength between the first sheet 321 and the second sheet 322 can be further increased. Can be increased.

　第３変形例に係るチューブシート４２０も、第２変形例に係るチューブシート３２０と同様に、媒体流路４４０がＵ字状に形成されている。流入側流路４４１ａから媒体流路４４０へと流入した冷却水は、媒体流路４４０をＵ字状に流通した後、流出側流路４４１ｂから流出する。 Similarly to the tube sheet 320 according to the second modification, the tube sheet 420 according to the third modification also has a medium flow path 440 formed in a U shape. The cooling water flowing into the medium flow path 440 from the inflow side flow path 441a flows out of the outflow side flow path 441b after flowing through the medium flow path 440 in a U shape.

　第３の変形例に係る撹拌用突出部４２６ｂは、図８に示すように、チューブシート４２０の底面４２３上に非線対称となるように形成される。そのため、第３変形例に係るチューブシート４２０の第１シート４２１および第２シート４２２を対向するように積層させると、撹拌用突出部４２６ｂは、対向する撹拌用突出部４２６ｂと当接することなく媒体流路４４０の厚み方向に半分遮ることとなる。したがって、媒体流路４４０を流通する冷却水は、それぞれの撹拌用突出部４２６ｂによって媒体流路４４０の厚み方向や幅方向に撹拌され易くなるので、冷却水の熱交換効率を高くすることができる。 The stirring protrusion 426b according to the third modification is formed on the bottom surface 423 of the tube sheet 420 so as to be non-symmetrical as shown in FIG. Therefore, when the first sheet 421 and the second sheet 422 of the tube sheet 420 according to the third modification are stacked so as to face each other, the stirring protrusion 426b does not contact the facing stirring protrusion 426b. The flow path 440 is half blocked in the thickness direction. Therefore, since the cooling water flowing through the medium flow path 440 is easily stirred in the thickness direction and the width direction of the medium flow path 440 by the respective stirring protrusions 426b, the heat exchange efficiency of the cooling water can be increased. .

　さらに、撹拌用突出部５２６ｂは、図９に示すように、フィン状に形成してもよい。図９は、第４の変形例に係るチューブシート５２０の平面図である。このようなフィン状に形成した撹拌用突出部５２６ｂによっても、媒体流路５４０を流通する冷却水を効率よく撹拌することができる。 Further, the stirring protrusion 526b may be formed in a fin shape as shown in FIG. FIG. 9 is a plan view of a tube sheet 520 according to a fourth modification. The cooling water flowing through the medium flow path 540 can also be efficiently stirred by the stirring protrusion 526b formed in such a fin shape.

　本願は、２０１６年７月１９日に日本国特許庁に出願された特願２０１６－１４１６７６に基づく優先権を主張し、この出願の全ての内容は参照により本明細書に組み込まれる。 This application claims priority based on Japanese Patent Application No. 2016-141676 filed with the Japan Patent Office on July 19, 2016, the entire contents of which are incorporated herein by reference.

Claims (6)

　複数のチューブシートを積層してなる積層型の熱交換器であって、
　前記チューブシートは、
　対向する一対の第１シートおよび第２シートと、
　前記第１シートと前記第２シートとの間に形成され、内部に熱交換媒体が流通する媒体流路と、
　積層方向に連通するように前記第１シートおよび前記第２シートの一端に形成され、前記媒体流路の熱交換媒体が前記チューブシートの積層方向に流れる積層方向媒体流路と、
を備え、
　前記第１シートおよび前記第２シートの少なくとも一方は、前記媒体流路に突出するよう形成される突出部を有し、
　前記突出部は、
　前記第１シートまたは前記第２シートの一端から前記媒体流路の熱交換媒体の流れ方向に延びるように形成され、前記媒体流路と前記積層方向媒体流路との間を流通する熱交換媒体の流れを整える整流用突出部と、
　前記媒体流路を流通する熱交換媒体を撹拌する撹拌用突出部と、
から構成される、熱交換器。 A laminated heat exchanger in which a plurality of tube sheets are laminated,
The tube sheet is
A pair of opposing first and second sheets;
A medium flow path formed between the first sheet and the second sheet, in which a heat exchange medium flows;
A lamination direction medium flow path formed at one end of the first sheet and the second sheet so as to communicate in the lamination direction, and the heat exchange medium of the medium flow path flows in the lamination direction of the tube sheet;
With
At least one of the first sheet and the second sheet has a protrusion formed to protrude into the medium flow path,
The protrusion is
A heat exchange medium formed so as to extend from one end of the first sheet or the second sheet in the flow direction of the heat exchange medium in the medium flow path and circulates between the medium flow path and the stacking direction medium flow path A rectifying projection that regulates the flow of
A stirring protrusion for stirring the heat exchange medium flowing through the medium flow path;
A heat exchanger composed of 　請求項１に記載の熱交換器であって、
　前記整流用突出部は、少なくとも一方の端部が前記媒体流路の熱交換媒体の流れ方向に向かって直線状に延びる、
熱交換器。 The heat exchanger according to claim 1,
The rectifying protrusion has at least one end extending linearly toward the flow direction of the heat exchange medium in the medium flow path,
Heat exchanger. 　請求項２に記載の熱交換器であって、
　前記第１シートおよび前記第２シートには、同一形状の前記整流用突出部がそれぞれ形成され、
　前記整流用突出部は、前記第１シートおよび前記第２シートを対向するように積層させることで、互いに突出端が当接するように重なり合う、
熱交換器。 The heat exchanger according to claim 2,
In the first sheet and the second sheet, the rectifying protrusions having the same shape are respectively formed.
The rectifying protrusions are stacked so that the protruding ends abut each other by laminating the first sheet and the second sheet so as to face each other.
Heat exchanger. 　請求項１から請求項３のいずれか一つに記載の熱交換器であって、
　前記撹拌用突出部は、波状に屈曲する、
熱交換器。 The heat exchanger according to any one of claims 1 to 3,
The stirring protrusion is bent in a wave shape,
Heat exchanger. 　請求項１から請求項３のいずれか一つに記載の熱交換器であって、
　前記撹拌用突出部は、円柱状に複数形成される、
熱交換器。 The heat exchanger according to any one of claims 1 to 3,
A plurality of the stirring protrusions are formed in a columnar shape,
Heat exchanger. 　請求項１から請求項５のいずれか一つに記載の熱交換器であって、
　前記第１シートおよび前記第２シートには、同一形状の前記撹拌用突出部がそれぞれ形成され、
　前記撹拌用突出部は、前記第１シートおよび前記第２シートを対向するように積層させることで、互いに反転した状態で重なり合う、
熱交換器。 A heat exchanger according to any one of claims 1 to 5,
The first sheet and the second sheet are respectively formed with the stirring protrusions having the same shape,
The stirring protrusions are stacked so that the first sheet and the second sheet are opposed to each other so as to be reversed with respect to each other.
Heat exchanger.
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