JP2014088994A - Tube for heat exchanger - Google Patents

Tube for heat exchanger Download PDF

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Publication number
JP2014088994A
JP2014088994A JP2012239052A JP2012239052A JP2014088994A JP 2014088994 A JP2014088994 A JP 2014088994A JP 2012239052 A JP2012239052 A JP 2012239052A JP 2012239052 A JP2012239052 A JP 2012239052A JP 2014088994 A JP2014088994 A JP 2014088994A
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Japan
Prior art keywords
heat exchanger
tube
exchanger tube
wavy
flow path
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JP2012239052A
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JP2014088994A5 (en
JP5921413B2 (en
Inventor
Kyohei Takimoto
恭平 滝本
Takashi Kaneda
崇 金田
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Marelli Corp
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Calsonic Kansei Corp
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Priority to JP2012239052A priority Critical patent/JP5921413B2/en
Priority to DE112013005192.3T priority patent/DE112013005192T5/en
Priority to US14/438,893 priority patent/US20150300755A1/en
Priority to CN201380057125.1A priority patent/CN104769381A/en
Priority to PCT/JP2013/077244 priority patent/WO2014069175A1/en
Publication of JP2014088994A publication Critical patent/JP2014088994A/en
Publication of JP2014088994A5 publication Critical patent/JP2014088994A5/ja
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Publication of JP5921413B2 publication Critical patent/JP5921413B2/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • 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
    • 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
    • F28F3/042—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 local deformations of the element
    • F28F3/046—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 local deformations of the element the deformations being linear, e.g. corrugations
    • 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
    • F28D1/03—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 plate-like or laminated conduits
    • F28D1/0308—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F28D1/0325—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • F28D1/0333—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
    • F28D1/0341—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members with U-flow or serpentine-flow inside the conduits
    • 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
    • F28D1/047—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 bent, e.g. in a serpentine or zig-zag
    • F28D1/0471—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 bent, e.g. in a serpentine or zig-zag the conduits having a non-circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/16—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being integral with the element, e.g. formed by extrusion
    • F28F1/18—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being integral with the element, e.g. formed by extrusion the element being built-up from finned sections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/22—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means having portions engaging further tubular elements

Abstract

PROBLEM TO BE SOLVED: To provide a tube for a heat exchanger capable of improving heat radiation performance while suppressing increase of flowing resistance when a medium flows.SOLUTION: A tube 1 for a heat exchanger includes an upstream side linear flow passage part 4A and a downstream side linear flow passage part 4B connecting an inlet part 2 and an outlet part 3 and through which the medium flows, and corrugated parts 5a, 5b, 5c and 5d arranged in the flow passage and extended to the longitudinal direction of the tube so as to continuously introduce the medium are provided in at least one of the upstream side linear flow passage part 4A and the downstream side linear flow passage part 4B.

Description

本発明は、熱交換器用チューブに関する。   The present invention relates to a heat exchanger tube.

従来の熱交換器用チューブとしては、特許文献１および特許文献２に記載のものが知られている。
これらの従来の熱交換器用チューブは、両外側が出入口を除いてビードで形成され、その中央部に仕切りビードが設けられて媒体がＵ字状に流れる流路が形成されたチューブ部材を有している。この流路には、流通する媒体を撹拌して放熱性能を向上させるために、内側へ向けて突出される多数の突出部が設けられている。このように形成された２個のチューブ・プレートは、互いに組み付けられてチューブを構成する。 As conventional heat exchanger tubes, those described in Patent Document 1 and Patent Document 2 are known.
These conventional heat exchanger tubes have tube members formed on both outer sides with beads except for the entrance and exit, with a partition bead provided at the center, and a flow path through which the medium flows in a U-shape. ing. The flow path is provided with a number of protrusions protruding inward to stir the circulating medium and improve the heat dissipation performance. The two tube plates formed in this way are assembled together to form a tube.

特開平２−１６９１２７号公報JP-A-2-169127 ＷＯ１９８３−０４０９０Ａ１号公報WO 1983-04090 A1

多数の突出部が流路内に配列されていると、放熱性能は向上するものの、流通抵抗が増加してしまうという問題がある。   If a large number of protrusions are arranged in the flow path, the heat dissipation performance is improved, but there is a problem that the flow resistance increases.

本発明は、上記問題に着目してなされたもので、その目的とするところは、媒体が流れる場合の流通抵抗の増加を抑えつつ放熱性能を向上させることできるようにした熱交換器用チューブを提供することにある。   The present invention has been made paying attention to the above problems, and its object is to provide a heat exchanger tube capable of improving heat dissipation performance while suppressing an increase in flow resistance when a medium flows. There is to do.

この目的のため本発明による熱交換器用チューブは、
媒体の入口部と、
媒体の出口部と、
入口部および出口部間を結び、媒体が流通する上流側直線流路部および下流側直線流路部と、
を備えた熱交換器用チューブにおいて、
上流側直線流路部および下流側直線流路部の少なくとも一方に、流路内に配置し、チューブの長手方向に延在、かつ連続し媒体を導く波状部を設けた、
ことを特徴とする。 For this purpose, the heat exchanger tube according to the invention is
A medium inlet,
A media outlet;
An upstream straight flow path section and a downstream straight flow path section through which the medium flows, connecting the inlet section and the outlet section,
In a heat exchanger tube with
At least one of the upstream linear flow channel portion and the downstream linear flow channel portion is disposed in the flow channel, and is provided with a wave-shaped portion that extends in the longitudinal direction of the tube and continuously guides the medium
It is characterized by that.

また、好ましくは、波状部は、チューブの内側に突出する突出部であることを特徴とする。   Preferably, the corrugated portion is a protruding portion that protrudes to the inside of the tube.

また、好ましくは、波状の突出部は、インナ・フィンであることを特徴とする。   Preferably, the wavy protrusion is an inner fin.

また、好ましくは、入口部と出口部とは、チューブの一端側に配置し、チューブの他端側には上流側直線流路部および下流側直線流路部をつなぐＵターン流路部を設け、このＵターン流路部にはチューブの内側に突出し、上流側直線流路部および下流側直線流路部の少なくとも一方に設けた波状部に連続する弧状の突出部を設けたことを特徴とする。   Preferably, the inlet portion and the outlet portion are arranged on one end side of the tube, and a U-turn flow passage portion connecting the upstream straight flow passage portion and the downstream straight flow passage portion is provided on the other end side of the tube. The U-turn flow path is provided with an arc-shaped protrusion that protrudes inward of the tube and continues to a wave-shaped part provided in at least one of the upstream straight flow path and the downstream straight flow path. To do.

また、好ましくは、チューブの厚さ方向に、一対の波状部を配置する。   Preferably, a pair of corrugated portions are arranged in the thickness direction of the tube.

また、好ましくは、一対の波状部が同じ位置となるように配置し、波状部同士が連続して対面するようにする。   Further, preferably, the pair of wavy portions are arranged at the same position so that the wavy portions continuously face each other.

また、好ましくは、一対の波状部のそれぞれの一部分のみが交差し、この一部分同士のみが対面するようにする。   Preferably, only a part of each of the pair of wavy portions intersects, and only the parts face each other.

また、好ましくは、一対の波状部のそれぞれの一部のみが交差し、この一部同士のみが対面するようにした場合に、一対の波状部を交互に並列配置する。   Preferably, when only a part of each of the pair of wavy portions intersects and only a part of these faces each other, the pair of wavy portions are alternately arranged in parallel.

また、好ましくは、Ｕターン流路部のＵターン端部は、上流側直進流路部および下流側直進流路部を分ける仕切り部の下流側端部を、内方に跨ぐように配置する。   Preferably, the U-turn end of the U-turn channel is disposed so as to straddle the downstream end of the partition that separates the upstream straight channel and the downstream straight channel inward.

また、好ましくは、チューブ内を流通する媒体が冷却水であり、熱交換器用チューブは、冷却水とチューブの外側を流通する圧縮空気とが熱交換して圧縮空気を冷却する水冷式チャージ・エア・クーラのチューブとする。   Preferably, the medium flowing through the tube is cooling water, and the heat exchanger tube is a water-cooled charge air that cools the compressed air by exchanging heat between the cooling water and the compressed air flowing outside the tube.・ Use a cooler tube.

本発明の熱交換器用チューブにあっては、波状部を設けたので、媒体が流れる場合の流通抵抗を抑制し、かつ媒体が波状部によって攪拌されることで放熱性能を向上させることできる。   In the heat exchanger tube of the present invention, since the wave-shaped portion is provided, the flow resistance when the medium flows can be suppressed, and the heat dissipation performance can be improved by stirring the medium by the wave-shaped portion.

また、波状部を、チューブの内側に突出する突出部で構成したので、容易かつ安価に波状部を形成することができる。   Moreover, since the wavy portion is constituted by a protruding portion that protrudes to the inside of the tube, the wavy portion can be formed easily and inexpensively.

また、波状の突出部を、インナ・フィンで構成したので、波状部の形状の設定の自由度が高まる。   Moreover, since the wavy protrusion is configured by the inner fin, the degree of freedom in setting the shape of the wavy portion is increased.

また、Ｕターン流路部に波状部に連続する弧状の突出部を設けたので、媒体がスムーズに流れて方向転換することができ、流路抵抗を抑制することができる。また、Ｕターン流路部がエロージョンにより破壊される恐れもなくなる。   In addition, since the arcuate projecting portion that is continuous with the wave-like portion is provided in the U-turn channel portion, the medium can smoothly flow and change direction, and the channel resistance can be suppressed. Further, there is no possibility that the U-turn flow path portion is destroyed by erosion.

また、チューブの厚さ方向に、一対の波状部を配置したので、波状部を有する半分割のチューブ・プレート同士を組み付けることで容易かつ安価にチューブを製造することができる。   Further, since the pair of corrugated portions are arranged in the thickness direction of the tube, the tube can be manufactured easily and inexpensively by assembling the half-divided tube plates having the corrugated portions.

また、一対の波状部が同じ位置となるように配置し、波状部同士が連続して対面するようにしたので、波状部を有する半分割のチューブ・プレート同士を組み付けることで容易かつ安価にチューブを製造することができ、媒体もよりスムーズに流すことでその流通抵抗も抑制できる。   Also, since the pair of corrugated parts are arranged at the same position and the corrugated parts are continuously facing each other, the tube can be easily and inexpensively assembled by assembling the half-divided tube plates having the corrugated parts. The flow resistance can be suppressed by flowing the medium more smoothly.

また、一対の波状部のそれぞれの一部のみが交差し、この一部同士のみが対面するようにしたので、波状部を有する半分割のチューブ・プレート同士を組み付けてチューブを製造する場合に、両チューブ・プレートに同じものを使うことができ、安価となる。   In addition, since only a part of each of the pair of wavy portions intersects, and only a part of these faces each other, when assembling the half-divided tube plates having the wavy portions, The same material can be used for both tubes and plates, and the cost is low.

また、一対の波状部のそれぞれの一部のみが交差し、この一部同士のみが対面するようにした場合に、一対の波状部を交互に並列配置するようにしたので、波状部を有する半分割のチューブ・プレート同士を組み付けてチューブを製造する場合に、両チューブ・プレートに同じものを使いながら、媒体の流通抵抗を抑制した状態で媒体を交互に並列配置した波状部によって攪拌されることで放熱性能を向上させることできる。   In addition, when only a part of each of the pair of wavy parts intersects and only a part of these parts face each other, the pair of wavy parts are alternately arranged in parallel. When a tube is manufactured by assembling divided tube plates, the same thing is used for both tube plates, and the medium is stirred by wave-like parts arranged in parallel with the flow resistance of the medium suppressed. The heat dissipation performance can be improved.

また、Ｕターン流路部のＵターン端部が、上流側直進流路部および下流側直進流路部における仕切り部の下流側端部を、内方に跨ぐようにしたので、直進流路部間の流れがスムーズに行われ、流通抵抗を抑制することができる。   Further, since the U-turn end portion of the U-turn flow channel portion straddles the downstream end portion of the partition portion in the upstream straight flow channel portion and the downstream straight flow channel portion inwardly, the straight flow channel portion The flow between them is performed smoothly, and the flow resistance can be suppressed.

また、本発明の熱交換器用チューブは、水冷式チャージ・エア・クーラのチューブに最適である。   Moreover, the tube for heat exchangers of the present invention is most suitable for a tube of a water-cooled charge air cooler.

本発明の実施例１に係る熱交換器用チューブの断面図である。It is sectional drawing of the tube for heat exchangers which concerns on Example 1 of this invention. 本発明の実施例２に係る熱交換器用チューブの断面図である。It is sectional drawing of the tube for heat exchangers which concerns on Example 2 of this invention. 図２においてS3-S3線に沿って切断してみた、実施例２に係る熱交換器用チューブの断面図である。It is sectional drawing of the tube for heat exchangers based on Example 2 cut | disconnected along the S3-S3 line | wire in FIG. 図２においてS4-S4線に沿って切断してみた、実施例２に係る熱交換器用チューブの断面図である。It is sectional drawing of the tube for heat exchangers based on Example 2 cut | disconnected along the S4-S4 line | wire in FIG.

以下、本発明の実施の形態を、図面に示す実施例に基づき詳細に説明する。なお、各実施例において、実質的に同じ構成のものは、同じ番号を付し、その説明を省略する。   Hereinafter, embodiments of the present invention will be described in detail based on examples shown in the drawings. In addition, in each Example, the thing of the substantially same structure attaches | subjects the same number, and abbreviate | omits the description.

まず、実施例１の熱交換器用チューブの全体構成を説明する。
図１に示すように、実施例１の熱交換器用チューブ1は、本実施例では、内燃機関エンジンに付属され、吸入空気を圧縮するチャージャ（ターボチャージャやスーパーチャージャ）の圧縮空気をエンジンの冷却水で冷却する水冷式チャージ・エア・クーラに用いられる。 First, the overall configuration of the heat exchanger tube of Example 1 will be described.
As shown in FIG. 1, the heat exchanger tube 1 of the first embodiment is attached to the internal combustion engine in this embodiment, and the compressed air of a charger (turbocharger or supercharger) that compresses intake air is cooled by the engine. Used in water-cooled charge air coolers that cool with water.

熱交換器用チューブ1は、半割のチューブ・プレートを組み付けることで構成される。
チューブ1は、入口部2と出口部3とを除き、その外周に沿って、その厚さ方向(高さ方向)内方に向けて突出した外周リブ部1aが設けられている。
また、チューブ1の一端側に配置した入口部2と出口部3の間からチューブの長手方向（図１の左右方向）に向けて、チューブ１の幅方向（図１の上下方向）
の中央位置で、チューブ1の他端側で、後で説明するＵターン流路部4C付近まで仕切りリブ部（仕切り部に相当）1bが延在されて、チューブ1を幅方向に２つの領域、すなわち上流側直線流路部4Aと、下流側直線流路部4Bとに区分する。 The heat exchanger tube 1 is configured by assembling half of the tube plate.
The tube 1 is provided with an outer peripheral rib portion 1a that protrudes inward in the thickness direction (height direction) along the outer periphery thereof except for the inlet portion 2 and the outlet portion 3.
In addition, the width direction of the tube 1 (vertical direction in FIG. 1) extends from between the inlet portion 2 and the outlet portion 3 arranged on one end side of the tube 1 in the longitudinal direction of the tube (left and right direction in FIG. 1).
At the other end of the tube 1, a partition rib portion (corresponding to a partition portion) 1 b extends to the vicinity of a U-turn flow path portion 4 C described later on the other end side of the tube 1, so that the tube 1 is divided into two regions in the width direction. That is, it is divided into an upstream straight flow path portion 4A and a downstream straight flow path portion 4B.

上流側直線流路部4Aの下流側端と下流側直線流路部4Bの上流側端とは、チューブ1の他端側でＵターン流路部4Cにて連通される。
一方、入口部2と出口部3とは、チューブ1の幅方向に並べて設けられ、これらの貫通孔を介して媒体であるエンジンの冷却水やエンジンの冷却水の一部を導入した並列回路、又はエンジンの冷却水とは異なる独立した回路（例えばチャージャ・エア・クーラ用の冷却水回路）が出入りすることができるようにしてある。入口部2は上流側直進通路4Aの上流側端に、また出口部3は下流側直進流路部4Bの下流側端にそれぞれ連続するように接続される。 The downstream end of the upstream linear flow path portion 4A and the upstream end of the downstream linear flow path portion 4B are communicated with each other on the other end side of the tube 1 through a U-turn flow path portion 4C.
On the other hand, the inlet portion 2 and the outlet portion 3 are provided side by side in the width direction of the tube 1, and a parallel circuit in which a part of engine cooling water or engine cooling water as a medium is introduced through these through holes, Alternatively, an independent circuit (for example, a cooling water circuit for a charger air cooler) different from the engine cooling water can enter and exit. The inlet 2 is connected to the upstream end of the upstream straight passage 4A, and the outlet 3 is connected to the downstream end of the downstream straight flow passage 4B.

上流側直進通路4Aには、図１の上側の外周リブ部1aと仕切りリブ部1bとの間に形成され、これらのリブ部1a、1b間に厚さ方向内側（図１に対して手前側）に突出し、厚さ方向上方からみて波状をなす波状突出部5a、5bが複数列並行に設けられ、３本の上流側流路4A1、4A2、4A3が形成される。
同様に、下流側直進通路4Bには、図１の下側の外周リブ部1aと仕切りリブ部1bとの間に形成され、これらのリブ部1a、1b間に厚さ方向に突出し、厚さ方向上方からみて波状をなす波状突出部5c、5dが複数列並行に設けられ、３本の下流側流路4B1、4B2、4B3が形成される。
なお、波状突出部5a、5b、5c、5dは、本発明の波状部に相当する。 The upstream straight passage 4A is formed between the outer peripheral rib portion 1a on the upper side in FIG. 1 and the partition rib portion 1b. The rib portion 1a, 1b is formed between the rib portions 1a and 1b in the thickness direction (front side with respect to FIG. 1). ) And wave-like protrusions 5a and 5b having a wave shape when viewed from above in the thickness direction are provided in parallel to form a plurality of upstream flow paths 4A1, 4A2, and 4A3.
Similarly, the downstream straight passage 4B is formed between the lower outer peripheral rib portion 1a and the partition rib portion 1b in FIG. 1, and protrudes in the thickness direction between the rib portions 1a and 1b. Wave-like protrusions 5c and 5d having a wave shape when viewed from above are provided in parallel in a plurality of rows, and three downstream channels 4B1, 4B2, and 4B3 are formed.
The wavy protrusions 5a, 5b, 5c, and 5d correspond to the wavy portions of the present invention.

一方、Ｕターン流路部4Cは、チューブ1の他端側の外周リブ部1aの内側に設けられて厚さ方向内側へ突出し、厚さ方向上方からみて円弧状をなす複数の円弧状突出部6a、6bが設けられる。ここで、曲率は円弧状突出部6aの方を円弧状突出部6bの方より大きく設定してある。
したがって、Ｕターン流路部4Cでは、外周リブ部1aと外側の円弧状突出部6aとの間、外側の円弧状突出部6aと内側の円弧状突出部6bとの間、および内側の円弧状突出部6bと仕切りリブ部1bの他端側端部との間に、それぞれ合計３本のＵターン通路4C1、4C2、4C3の流路が形成される。なお、これらのＵターン通路4C1、4C2、4C3は、媒体の流入方向と流出方向を180度方向転換させるようにそれらの曲率が設定されている。 On the other hand, the U-turn channel portion 4C is provided on the inner side of the outer peripheral rib portion 1a on the other end side of the tube 1 and protrudes inward in the thickness direction, and has a plurality of arc-shaped protruding portions forming an arc shape when viewed from above in the thickness direction. 6a and 6b are provided. Here, the curvature of the arcuate protrusion 6a is set larger than that of the arcuate protrusion 6b.
Therefore, in the U-turn channel portion 4C, between the outer peripheral rib portion 1a and the outer arc-shaped protruding portion 6a, between the outer arc-shaped protruding portion 6a and the inner arc-shaped protruding portion 6b, and on the inner arc-shaped portion A total of three U-turn passages 4C1, 4C2, and 4C3 are formed between the protruding portion 6b and the other end of the partition rib portion 1b. The curvatures of these U-turn passages 4C1, 4C2, and 4C3 are set so as to change the inflow direction and the outflow direction of the medium by 180 degrees.

この場合、外側の円弧状突出部6aの両端部は、波状突出部5aの下流側端と波状突出部5dの上流側端にそれぞれ連続させられて、媒体が入口部2、外側の上流側流路4A1、外側のＵターン通路4C1、外側の下流側流路4B1、出口部3を流れるようにされる。
また、内側の円弧状突出部6bの両端部は、波状突出部5bの下流側端と波状突出部5cの上流側端にそれぞれ連続させられて、媒体が入口部2、中央の上流側流路4A2、中央のＵターン通路4C2、中央の下流側流路4B2、出口部3を、また入口部2、内側の上流側流路4A3、内側のＵターン通路4C3、外側の下流側流路4B3、出口部3を流れるようにされる。 In this case, both ends of the outer arc-shaped protrusion 6a are connected to the downstream end of the wave-shaped protrusion 5a and the upstream end of the wave-shaped protrusion 5d, respectively, so that the medium flows into the inlet 2 and the outer upstream flow. It flows through the path 4A1, the outer U-turn path 4C1, the outer downstream channel 4B1, and the outlet 3.
Further, both end portions of the inner arc-shaped protruding portion 6b are respectively connected to the downstream end of the wave-shaped protruding portion 5b and the upstream end of the wave-shaped protruding portion 5c, so that the medium flows into the inlet portion 2 and the central upstream flow path. 4A2, the central U-turn passage 4C2, the central downstream flow passage 4B2, the outlet portion 3, the inlet portion 2, the inner upstream flow passage 4A3, the inner U-turn passage 4C3, the outer downstream flow passage 4B3, It is made to flow through the outlet part 3.

なお、外側の円弧状突出部6aの上流側端部および波状突出部5aの下流側端の間と、内側の円弧状突出部6bの上流側端部および波状突出部5bの下流側端の間は、それぞれ仕切りリブ部1bの下流側端部より上流側へ所定距離伸ばした直線突出部7a、7bで接続されている。   Between the upstream end of the outer arcuate protrusion 6a and the downstream end of the corrugated protrusion 5a, and between the upstream end of the inner arcuate protrusion 6b and the downstream end of the corrugated protrusion 5b. Are connected by linear protrusions 7a and 7b that extend a predetermined distance from the downstream end of the partition rib portion 1b to the upstream side.

図示しないが、図１に向けてこの上方に並行配置した鏡で鏡面反射させた像の形状および位置となる波状突出部や弧状突出部を有する別のチューブ・プレートがさらに成形、用意される。
そうして、図１の形状のチューブ・プレートと上記別のチューブ・プレートとが、組み付けられる。この組み付け状態では、両チューブ・プレートの波状突出部同士、弧状突出部同士、直線突出部同士は、同じ位置で互いに対面した状態となる。
この状態で、両チューブ・プレートは、これらの波状突出部同士、弧状突出部同士、直線突出部同士、外周リブ部同士、仕切りリブ部同士がロウ付け等で固着されることで、チューブ1が得られる。 Although not shown in the drawing, another tube plate having wave-like protrusions and arc-like protrusions that have the shape and position of the image mirror-reflected by a mirror arranged in parallel above this toward FIG. 1 is further formed and prepared.
Thus, the tube plate having the shape shown in FIG. 1 and the other tube plate are assembled. In this assembled state, the corrugated protrusions, the arc-shaped protrusions, and the linear protrusions of both the tubes and plates face each other at the same position.
In this state, both the tube plates are fixed to each other by brazing or the like such that the wavy protrusions, the arc-shaped protrusions, the linear protrusions, the outer peripheral ribs, and the partitioning ribs are fixed together by brazing or the like. can get.

上記のように構成された熱交換器用チューブでは、入口部2から流入された冷却水は、上流側直線流路部4A内を波状突出部5a、5bでコントロールされながら、３本の上流側流路4A1、4A2、4A3を蛇行して流れ、直線部7a、7bに沿ってＵターン流路部4Cへ流入する。
Ｕターン流路部4Cでは、弧状突出部6a、6bに沿って円弧の３本のＵターン通路4C1、4C2、4C内で、冷却水の流れ方向を徐々に180度変更し、３本の下流側流路4B1、4B2、4B3へ導く。
その後、媒体は、波状突出部5c、5dでコントロールされながら、３本の波状の下流側流路4B1、4B2、4B3内を蛇行して進み、出口部3から流出される。 In the heat exchanger tube configured as described above, the cooling water flowing in from the inlet portion 2 is controlled by the wavy protrusions 5a and 5b in the upstream linear flow passage portion 4A, and the three upstream flows It flows meandering along the paths 4A1, 4A2, and 4A3, and flows into the U-turn flow path section 4C along the straight sections 7a and 7b.
In the U-turn channel 4C, the flow direction of the cooling water is gradually changed by 180 degrees in the arcuate three U-turn passages 4C1, 4C2, 4C along the arcuate protrusions 6a, 6b, and three downstream Lead to side flow paths 4B1, 4B2, 4B3.
Thereafter, the medium is meandering through the three corrugated downstream channels 4B1, 4B2, and 4B3 while being controlled by the corrugated protrusions 5c and 5d, and flows out from the outlet 3.

このように冷却水は、従来のディンプル等のように撹拌され、チューブ内を流れていくが、波状に蛇行していくため、流通抵抗の増加を押さえつつ放熱性能を確保する。また、上述のようにＵターン部でも、徐々に方向が変えられていく。このため、チューブのこの端部に冷却水が強く当たってエロージョンにより破損するのを抑制する。
一方、このチューブの外側を流れる高温の圧縮空気は、チューブを通るとき、冷却水と熱交換を行うことで、冷却される。この空気には、燃料が吹き込まれて、この混合気がエンジンの燃焼室で燃焼される。 As described above, the cooling water is stirred like a conventional dimple and flows in the tube, but since it snakes in a wave shape, the heat dissipation performance is ensured while suppressing an increase in flow resistance. In addition, as described above, the direction is gradually changed even in the U-turn portion. For this reason, it is suppressed that the cooling water hits strongly at this end portion of the tube and is damaged by erosion.
On the other hand, the high-temperature compressed air flowing outside the tube is cooled by exchanging heat with cooling water when passing through the tube. Fuel is blown into this air, and this air-fuel mixture is burned in the combustion chamber of the engine.

以上、説明したように、実施例１の熱交換器のチューブは、以下の効果を得ることができる。
すなわち、上流側流通路部4Aと下流側流通路部4Bとに、それぞれ波状突出部5a、5b、5c、5dを設けたので、冷却水が流れる場合の流通抵抗を抑制し、かつ冷却水が波状突出部5a、5b、5c、5dに沿って流れることで放熱性能を向上させることできる。 As described above, the tube of the heat exchanger according to the first embodiment can obtain the following effects.
That is, since the upstream flow passage portion 4A and the downstream flow passage portion 4B are provided with the wave-like protrusions 5a, 5b, 5c, 5d, respectively, the flow resistance when the cooling water flows is suppressed, and the cooling water is The heat dissipation performance can be improved by flowing along the wavy protrusions 5a, 5b, 5c, and 5d.

半分割のチューブ・プレートを互いに組み付けることで、チューブ1を製造するようにしたので、容易かつ安価にチューブ1を製造することができる。
また、この場合、両チューブ・プレートの波状突出部5a、5b、5c、5dが同じ位置となるように配置し、波状突出部5a、5b、5c、5d同士が連続して対面するようにしたので蛇行するようにすることができる。
また、Ｕターン流路部4Cの弧状突出部6a、6bの端部が、仕切りリブ部1bの下流側端を跨ぐように配置したので、ここでの冷却水の乱れを抑制することができる。 Since the tube 1 is manufactured by assembling the half-divided tube plates with each other, the tube 1 can be manufactured easily and inexpensively.
Also, in this case, the wavy protrusions 5a, 5b, 5c, 5d of both tube plates are arranged at the same position so that the wavy protrusions 5a, 5b, 5c, 5d face each other continuously. So you can meander.
Further, since the end portions of the arc-shaped projecting portions 6a and 6b of the U-turn channel portion 4C are arranged so as to straddle the downstream end of the partition rib portion 1b, the disturbance of the cooling water here can be suppressed.

図２に実施例２の熱交換器のチューブ1を示す。実施例２の熱交換器のチューブ1は、実施例１と同じ構成のチューブ・プレートが２枚用意される。
そして、一方が反転されて他方に組み付けられてチューブ1が構成される。
この場合、実施例１の鏡面反射した別チューブ・プレートを用いるわけではないので、他方のチューブ・プレートに形成した上流側直線流路部4A、下流側直線流路部4Bの波状突出部5a、5b、5c、5dやＵターン流路部4Cの弧状突出部6a、6bは、図２に破線で示すようになる。 FIG. 2 shows a tube 1 of the heat exchanger according to the second embodiment. For the tube 1 of the heat exchanger of the second embodiment, two tube plates having the same configuration as the first embodiment are prepared.
One of the tubes is inverted and assembled to the other to form the tube 1.
In this case, since the mirror-reflected separate tube plate of Example 1 is not used, the upstream linear flow path portion 4A formed on the other tube plate, the wavy protrusion 5a of the downstream straight flow path portion 4B, The arcuate protrusions 6a and 6b of the 5b, 5c and 5d and the U-turn channel 4C are as shown by broken lines in FIG.

この場合、両チューブ・プレートの波状突出部5a、5b、5c、5d同士や直線突出部7a、7bの部分は、これらの一部分のみが対面し、他の部分はチューブ1の幅方向にお互いずれるようになる。これに対し、Ｕターン流路部4Cの弧状突出部6a、6bは、同じ位置にあって連続して対面することになる。
その他の構成は、実施例１と同様である。 In this case, the wavy protrusions 5a, 5b, 5c and 5d of both tube plates and the straight protrusions 7a and 7b are only partly facing each other, and the other parts are shifted from each other in the width direction of the tube 1. It becomes like this. On the other hand, the arc-shaped protrusions 6a and 6b of the U-turn channel 4C are in the same position and continuously face each other.
Other configurations are the same as those of the first embodiment.

図３は、図２で上記互いに対面しない部分を通るS3-S3線に沿ってみた横断面図、図４は、お互いに対面する上記一部分を通るS4-S4線に沿ってみた断面図である。
この断面形状をみて分かるように、従来技術の多数のディンプルのように、冷却水を大きく撹拌するようなことはない。 3 is a cross-sectional view taken along the line S3-S3 passing through the non-facing portions in FIG. 2, and FIG. 4 is a cross-sectional view taken along the line S4-S4 passing through the portions facing each other. .
As can be seen from this cross-sectional shape, the cooling water is not greatly agitated unlike many dimples in the prior art.

実施例２の熱交換器のチューブ1にあっては、実施例１の場合よりも攪拌が可能となるため、放熱性能が向上する。この場合、流通抵抗は実施例１の場合より若干増加することになる。
ただし、組み付ける両チューブ・プレートとも同じチューブ・プレートを用いることができるので、実施例１の場合より安価にチューブ1を製造することができるようになる。 In the tube 1 of the heat exchanger according to the second embodiment, since the agitation can be performed as compared with the first embodiment, the heat radiation performance is improved. In this case, the flow resistance is slightly increased as compared with the first embodiment.
However, since the same tube plate can be used for both tube plates to be assembled, the tube 1 can be manufactured at a lower cost than in the case of the first embodiment.

以上、本発明を上記実施例に基づき説明してきたが、本発明は上記実施例に限られず、本発明の要旨を逸脱しない範囲で設計変更等があった場合でも、本発明に含まれる。   As described above, the present invention has been described based on the above-described embodiments. However, the present invention is not limited to the above-described embodiments, and even when there is a design change or the like without departing from the gist of the present invention, it is included in the present invention.

たとえば、上記実施例１では、波状突出部5a、5b、5c、5dを上流側直線流路部4Aおよび下流側直線流路部4Bの両方に設けたが、いずれか一方にのみ設けるようにしてもよい。
また、波状突出部5a、5b、5c、5dや弧状突出部6a、6bに代えて、インナ・フィンを用いて媒体を導くようにしてもよい。 For example, in the first embodiment, the wavy protrusions 5a, 5b, 5c, and 5d are provided in both the upstream linear flow path portion 4A and the downstream straight flow path portion 4B, but only in one of them. Also good.
Further, the medium may be guided using inner fins in place of the wavy protrusions 5a, 5b, 5c, 5d and the arc-shaped protrusions 6a, 6b.

また、仕切りリブ部1bの下流側端部より上流側へ所定距離伸ばした直線突出部7a、7bで接続したが、直線突出部7a、7bを波状突出部に代えて、同一形状の両チューブ・プレートを組み付けることで、さらに安価にチューブ1を製造することができる。   In addition, although connected by linear protrusions 7a, 7b extending a predetermined distance from the downstream end of the partition rib part 1b to the upstream side, instead of the linear protrusions 7a, 7b, wave-like protrusions, both tubes of the same shape By assembling the plates, the tube 1 can be manufactured at a lower cost.

また、本発明の熱交換器のチューブは、水冷式チャージ・エア・クーラに用いたが、これに限られず、他の熱交換器に用いるようにしてもよい。   Moreover, although the tube of the heat exchanger of this invention was used for the water-cooling type charge air cooler, it is not restricted to this, You may make it use for another heat exchanger.

1 チューブ
1a 外周リブ部
1b 仕切りリブ部（仕切り部）
2 入口部
3 出口部
4A 上流側直線流路部
4B 下流側直線流路部
4C Ｕターン流路部
4A1、4A2、4A3 上流側流路
4B1、4B2、4B3 下流側流路
4C1、4C2、4C3 Ｕターン通路
5a、5b、5c、5d 波状突出部
6a、6b 弧状突出部
7a、7b 直線突出部 1 tube
1a Outer rib
1b Partition rib (partition)
2 Entrance
3 Exit
4A Upstream straight flow path
4B Downstream straight flow path
4C U-turn channel
4A1, 4A2, 4A3 Upstream flow path
4B1, 4B2, 4B3 Downstream channel
4C1, 4C2, 4C3 U-turn passage
5a, 5b, 5c, 5d Wavy protrusion
6a, 6b Arc-shaped protrusion
7a, 7b Linear protrusion

Claims (10)

媒体の入口部と、
前記媒体の出口部と、
前記入口部および前記出口部間を結び、媒体が流通する上流側直線流路部および下流側直線流路部と、
を備えた熱交換器用チューブにおいて、
前記上流側直線流路部および前記下流側直線流路部の少なくとも一方に、流路内に配置し、チューブの長手方向に延在、かつ連続し媒体を導く波状部を設けた、
ことを特徴とする熱交換器用チューブ。 A medium inlet,
An outlet portion of the medium;
An upstream straight flow path section and a downstream straight flow path section through which the medium flows through the inlet section and the outlet section,
In a heat exchanger tube with
At least one of the upstream linear flow channel portion and the downstream linear flow channel portion is provided in the flow channel, and provided with a wave-shaped portion that extends in the longitudinal direction of the tube and continuously guides the medium.
This is a heat exchanger tube. 請求項１に記載の熱交換器用チューブにおいて、
前記波状部は、前記チューブの内側に突出する突出部である、
ことを特徴とする熱交換器用チューブ。 In the heat exchanger tube according to claim 1,
The wavy portion is a protruding portion that protrudes to the inside of the tube.
This is a heat exchanger tube. 請求項２に記載の熱交換器用チューブにおいて、
前記波状の突出部は、インナ・フィンである、
ことを特徴とする熱交換器用チューブ。 The heat exchanger tube according to claim 2,
The wavy protrusion is an inner fin,
This is a heat exchanger tube. 請求項１乃至請求項３のいずれか１項に記載の熱交換器用チューブにおいて、
前記入口部と前記出口部とは、前記チューブの一端側に配置し、該チューブの他端側には前記上流側直線流路部および前記下流側直線流路部をつなぐＵターン流路部を設け、該Ｕターン流路部には前記チューブの内側に突出し、前記上流側直線流路部および前記下流側直線流路部の少なくとも一方に設けた前記波状部に連続する弧状の突出部を設けた
ことを特徴とする熱交換器用チューブ。 In the heat exchanger tube according to any one of claims 1 to 3,
The inlet portion and the outlet portion are arranged on one end side of the tube, and a U-turn flow passage portion that connects the upstream straight flow passage portion and the downstream straight flow passage portion to the other end side of the tube. The U-turn flow path is provided with an arc-shaped protrusion that protrudes inside the tube and continues to the wave-shaped part provided in at least one of the upstream straight flow path and the downstream straight flow path. This is a tube for heat exchangers. 請求項１乃至請求項４のいずれか１項に記載の熱交換器用チューブにおいて、
前記波状部は、チューブの厚さ方向に配置した、複数の波状部からなる、
ことを特徴とする熱交換器用チューブ。 In the heat exchanger tube according to any one of claims 1 to 4,
The wavy portion is composed of a plurality of wavy portions arranged in the thickness direction of the tube.
This is a heat exchanger tube. 請求項５に記載の熱交換器用チューブにおいて、
前記一対の波状部が同じ位置となるように配置し、該波状部同士が連続して対面するようにした、
ことを特徴とする熱交換器用チューブ。 In the heat exchanger tube according to claim 5,
The pair of wavy portions were arranged so as to be at the same position, and the wavy portions were continuously facing each other.
This is a heat exchanger tube. 請求項５に記載の熱交換器用チューブにおいて、
前記波状部は、前記一対の波状部のそれぞれの一部分のみが交差し、該一部分同士のみが対面する、
ことを特徴とする熱交換器用チューブ。 In the heat exchanger tube according to claim 5,
The wavy portions intersect only a part of each of the pair of wavy portions, and only the portions face each other.
This is a heat exchanger tube. 請求項５に記載の熱交換器用チューブにおいて、
前記一対の波状部は、交互に並列配置した、
ことを特徴とする熱交換器用チューブ。 In the heat exchanger tube according to claim 5,
The pair of wavy portions are alternately arranged in parallel.
This is a heat exchanger tube. 請求項１乃至８のいずれか１項に記載の熱交換器用チューブにおいて、
前記Ｕターン流路部のＵターン端部は、前記上流側直進流路部および前記下流側直進流路部を分ける仕切り部の端部を、内方に跨ぐように配置した、
ことを特徴とする熱交換器用チューブ。 In the heat exchanger tube according to any one of claims 1 to 8,
The U-turn end of the U-turn channel is arranged so as to straddle the end of the partition that divides the upstream straight channel and the downstream linear channel, inward.
This is a heat exchanger tube. 請求項１乃至９のいずれか１項に記載の熱交換器用チューブにおいて、
前記チューブ内を流通する媒体は、冷却水であり、
前記熱交換器用チューブは、前記冷却水と前記チューブの外側を流通する圧縮空気とが熱交換して圧縮空気を冷却する水冷式チャージ・エア・クーラのチューブである、
ことを特徴とする熱交換器用チューブ。 In the heat exchanger tube according to any one of claims 1 to 9,
The medium circulating in the tube is cooling water,
The heat exchanger tube is a tube of a water-cooled charge air cooler in which the cooling water and compressed air flowing outside the tube exchange heat to cool the compressed air.
This is a heat exchanger tube.
JP2012239052A 2012-10-30 2012-10-30 Tube for heat exchanger Active JP5921413B2 (en)

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JP2012239052A JP5921413B2 (en) 2012-10-30 2012-10-30 Tube for heat exchanger
DE112013005192.3T DE112013005192T5 (en) 2012-10-30 2013-10-07 heat exchanger tube
US14/438,893 US20150300755A1 (en) 2012-10-30 2013-10-07 Heat exchanger tube
CN201380057125.1A CN104769381A (en) 2012-10-30 2013-10-07 Heat exchanger tube
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US20150300755A1 (en) 2015-10-22

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