CN108700384A - Heat Exchanger - Google Patents
Heat Exchanger Download PDFInfo
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- CN108700384A CN108700384A CN201580085593.9A CN201580085593A CN108700384A CN 108700384 A CN108700384 A CN 108700384A CN 201580085593 A CN201580085593 A CN 201580085593A CN 108700384 A CN108700384 A CN 108700384A
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- heat exchanger
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- 238000005452 bending Methods 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims description 12
- 230000001154 acute effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/06—Tubular elements of cross-section which is non-circular crimped or corrugated in cross-section
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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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0006—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the plate-like or laminated conduits being enclosed within a pressure vessel
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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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
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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
- F28F1/08—Tubular elements crimped or corrugated in longitudinal section
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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
- F28F1/12—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
-
- 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
- F28F1/34—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 obliquely
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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
- 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
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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
- 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
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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
- F28D1/0535—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 the conduits having a non-circular cross-section
- F28D1/05358—Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators
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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
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/04—Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular
-
- 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
- F28F1/126—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 consisting of zig-zag shaped fins
-
- 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
- F28F1/24—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 transversely
- F28F1/26—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 transversely the means being integral with the 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
- 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
- F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
- F28F1/422—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element with outside means integral with the tubular element and inside means integral with the tubular element
Landscapes
- 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
Description
技术领域technical field
本发明涉及换热器，详细而言涉及通过使流体在传热部件的表面流动而进行换热的换热器。The present invention relates to a heat exchanger, and specifically relates to a heat exchanger for exchanging heat by flowing a fluid on the surface of a heat transfer member.
背景技术Background technique
以往，作为这种换热器，提出了一种在扁平的管状的换热用管的扁平面以相对于空气的主要流动所成的角成为从10度到60度的范围内的预定角的方式具有波状的凹凸的换热器，且该波状的凹凸以在沿着空气的主要流动的预定间隔的折返线呈对称地折返的方式具有峰部和谷部(例如参照专利文献1)。关于该换热器的波状的凹凸，波状的凹凸的峰部(凸部)和/或谷部(凹部)成为将V字(或者W字)相连而得的形状，通过这样地形成波状的凹凸，从而相对于空气的主要流动产生沿着波状的凹凸的表面流动的二次流，提高了换热器的换热效率。Conventionally, as such a heat exchanger, there has been proposed one in which the flat surface of a flat tubular heat exchange tube forms a predetermined angle with respect to the main flow of air in a range from 10 degrees to 60 degrees. A heat exchanger having corrugated irregularities having peaks and valleys so as to return symmetrically on a return line at predetermined intervals along the main flow of air (for example, refer to Patent Document 1). With regard to the wavy unevenness of this heat exchanger, the peaks (convexes) and/or valleys (depressions) of the wavy unevenness have a shape in which a V (or W) is connected, and the wavy unevenness is formed in this way. , so that relative to the main flow of air, a secondary flow flowing along the wavy concave-convex surface is generated, and the heat exchange efficiency of the heat exchanger is improved.
现有技术文献prior art literature
专利文献patent documents
专利文献1：日本特开2008-232592号公报Patent Document 1: Japanese Patent Laid-Open No. 2008-232592
发明内容Contents of the invention
在上述的换热器中，为了提高换热效率而希望增大波状的凹凸的振幅(顶部与底部的高低差)，但是若增大波状的凹凸的振幅，则在通过压力加工来形成换热用管的情况下，会在将波状的凹凸的峰部(凸部)和/或谷部(凹部)相连而得的V字(或者W字)的弯折部发生因应力集中导致的破损，换热用管的成品率会变低。In the above-mentioned heat exchanger, in order to improve the heat exchange efficiency, it is desirable to increase the amplitude of the wavy unevenness (height difference between the top and the bottom), but if the amplitude of the wavy unevenness is increased, the heat exchange will be formed by press working. In the case of a tube, damage due to stress concentration may occur at the bent portion of the V-shape (or W-shape) formed by connecting wavy peaks (convexes) and/or troughs (recesses), The yield of heat exchange tubes will decrease.
本发明的换热器以在使传热部件的波状的凹凸的振幅相同时进一步提高传热部件的成品率、在使传热部件的成品率相同时进一步增大传热部件的波状的振幅为主要目的。In the heat exchanger of the present invention, the yield rate of the heat transfer member is further improved when the amplitude of the wavy unevenness of the heat transfer member is made the same, and the wavy amplitude of the heat transfer member is further increased when the yield of the heat transfer member is made the same. main purpose.
本发明的换热器为了达成上述的主要目的而采用了以下的技术方案。The heat exchanger of the present invention adopts the following technical solutions in order to achieve the above-mentioned main purpose.
本发明的换热器是通过使流体在传热部件的表面流动而进行换热的换热器，其特征在于，The heat exchanger of the present invention is a heat exchanger that performs heat exchange by making fluid flow on the surface of a heat transfer member, and is characterized in that,
在所述传热部件，在所述流体侧的表面形成有由平滑的曲线形成的波状的凹凸，该波状的凹凸形成为，波的顶部连续的顶部线和波的底部连续的底部线形成为将V字在水平方向上相连且弯折部成为曲线、并且所述流体的主要流动为V字的垂直方向。In the heat transfer member, wavy unevenness formed by smooth curves is formed on the surface of the fluid side, and the wavy unevenness is formed such that the top line of the top of the wave is continuous and the bottom line of the bottom of the wave is continuous. The Vs are connected in the horizontal direction and the bending part becomes a curve, and the main flow of the fluid is the vertical direction of the Vs.
在本发明的换热器中，在传热部件的流体侧的表面，形成有由平滑的曲线形成的波状的凹凸，该波状的凹凸形成为，波的顶部连续的顶部线和波的底部连续的底部线形成为将V字在水平方向上相连且弯折部成为曲线、即形成为以将V字在水平方向上2个相连而成为W字的方式进一步连续地相连。并且，该波状的凹凸形成为，流体的主要流动为V字的垂直方向(上下方向)。通过使顶部线和底部线的V字的弯折部(W字的弯折部)成为曲线，从而能够减小弯折部的应力集中。结果，能够在使传热部件的波状的凹凸的振幅相同时进一步提高传热部件的成品率，能够在使传热部件的成品率相同时进一步增大传热部件的波状的凹凸的振幅。当然，在本发明的换热器中，在传热部件的流体侧的表面，形成有由平滑的曲线形成的波状的凹凸，该波状的凹凸形成为将V字相连而得的形状，因此能够相对于流体的主要流动产生沿着传热部件的波状的凹凸的表面平滑地流动的二次流，能够提高换热器的传热效率。In the heat exchanger of the present invention, the surface of the heat transfer member on the fluid side is formed with wavy irregularities formed of smooth curves, and the wavy unevenness is formed so that the top line of the wave and the bottom of the wave are continuous. The bottom line is formed so that the V characters are connected in the horizontal direction and the bent portion becomes a curve, that is, two V characters are connected in the horizontal direction to form a W character and further continuously connected. In addition, the wavy unevenness is formed so that the main flow of the fluid is in the vertical direction (vertical direction) of the V-shape. Stress concentration at the bent portion can be reduced by making the V-shaped bent portion (W-shaped bent portion) of the top line and the bottom line curved. As a result, the yield of the heat transfer member can be further improved when the amplitude of the wavy unevenness of the heat transfer member is made the same, and the amplitude of the wavy unevenness of the heat transfer member can be further increased when the yield of the heat transfer member is made equal. Of course, in the heat exchanger of the present invention, the surface of the heat transfer member on the fluid side is formed with wavy unevenness formed by smooth curves, and the wavy unevenness is formed in a shape obtained by connecting a V shape, so that With respect to the main flow of the fluid, a secondary flow that flows smoothly along the wavy uneven surface of the heat transfer member is generated, and the heat transfer efficiency of the heat exchanger can be improved.
在这样的本发明的换热器中，也可以是，所述顶部线和所述底部线形成为将直线部与圆弧部交替地连接。这样一来，与由正弦曲线形成顶部线和底部线的情况相比，能够增大弯折部的最小半径。结果，与由正弦曲线形成顶部线和底部线的情况相比，能够在使传热部件的波状的凹凸的振幅相同时进一步提高传热部件的成品率，能够在使传热部件的成品率相同时进一步增大传热部件的波状的凹凸的振幅。在该情况下，也可以是，所述圆弧部形成为半径成为所述直线部的长度的1/5以上。In such a heat exchanger of the present invention, the top line and the bottom line may be formed so as to alternately connect straight portions and arc portions. In this way, the minimum radius of the bent portion can be increased compared to the case where the top line and the bottom line are formed by sinusoidal curves. As a result, compared with the case where the top line and the bottom line are formed by sinusoidal curves, the yield of the heat transfer member can be further improved when the amplitude of the wavy unevenness of the heat transfer member is made the same, and the yield of the heat transfer member can be compared. At the same time, the amplitude of the wavy unevenness of the heat transfer member is further increased. In this case, the arc portion may be formed such that its radius is 1/5 or more of the length of the straight portion.
另外，在本发明的换热器中，也可以是，所述波状的凹凸形成为，截面为直线与圆弧交替地连续。这样一来，与由正弦曲线形成波状的凹凸的截面的情况相比，能够增大波状的凹凸的振幅，能够进一步提高换热器的传热效率。In addition, in the heat exchanger according to the present invention, the wavy unevenness may be formed such that the cross-section is continuous with straight lines and arcs alternately. In this way, the amplitude of the wavy unevenness can be increased compared with the case where the wavy uneven cross section is formed from a sinusoidal curve, and the heat transfer efficiency of the heat exchanger can be further improved.
在本发明的换热器中，也可以是，所述传热部件为作为扁平的中空管而形成的换热用管，所述波状的凹凸形成于所述换热用管的扁平面。即，也可以适用于无翅片的换热器。另外，在本发明的换热器中，也可以是，所述传热部件为连结于换热用管的翅片。即，也可以适用于波纹翅片型的换热器等。In the heat exchanger according to the present invention, the heat transfer member may be a heat exchange tube formed as a flat hollow tube, and the corrugated unevenness may be formed on a flat surface of the heat exchange tube. That is, it can also be applied to a heat exchanger without fins. Moreover, in the heat exchanger of this invention, the said heat transfer member may be the fin connected to the tube for heat exchange. That is, it can also be applied to a corrugated-fin type heat exchanger or the like.
附图说明Description of drawings
图1是示出作为本发明的一个实施例的换热器20的构成的概略的说明图。FIG. 1 is an explanatory diagram showing a schematic configuration of a heat exchanger 20 as one embodiment of the present invention.
图2是从侧面示出实施例的换热器20中所使用的多个换热用管30的外观的侧视图。FIG. 2 is a side view showing the appearance of a plurality of heat exchange tubes 30 used in the heat exchanger 20 of the embodiment from the side.
图3是示出图1中的A-A截面的剖视图。Fig. 3 is a cross-sectional view showing a section A-A in Fig. 1 .
图4是示出比较例的换热器920的构成的概略的说明图。FIG. 4 is an explanatory diagram showing a schematic configuration of a heat exchanger 920 of a comparative example.
具体实施方式Detailed ways
接着，使用实施例对用于实施本发明的实施方式进行说明。Next, an embodiment for carrying out the present invention will be described using examples.
图1是示出作为本发明的一个实施例的换热器20的构成的概略的说明图，图2是从侧面示出实施例的换热器20中所使用的多个换热用管30的外观的侧视图。图3是示出图1中的A-A截面的剖视图。图4是示出比较例的换热器920的构成的概略的说明图。如图1所示，实施例的换热器20具备：以长度方向成为铅垂方向的方式排列地配置的多个换热用管30、和收纳该多个换热用管30的壳体50。FIG. 1 is an explanatory diagram showing a schematic configuration of a heat exchanger 20 as an embodiment of the present invention, and FIG. 2 is a side view showing a plurality of heat exchange tubes 30 used in the heat exchanger 20 of the embodiment. side view of the exterior. Fig. 3 is a cross-sectional view showing a section A-A in Fig. 1 . FIG. 4 is an explanatory diagram showing a schematic configuration of a heat exchanger 920 of a comparative example. As shown in FIG. 1 , the heat exchanger 20 of the embodiment includes: a plurality of heat exchange tubes 30 arranged in a row so that the longitudinal direction becomes a vertical direction; and a casing 50 for accommodating the plurality of heat exchange tubes 30 .
各换热用管30构成为，使用由金属材料(例如不锈钢、铝等)制成的板材以整体成为大致矩形形状的扁平的中空管的方式通过压力加工而形成，并以长度方向成为铅垂方向的方式进行层叠，且接触点通过钎焊(日文：ロウ付け)而接合。在各换热用管30的铅垂下方的下端附近所形成的流入口31与通过将各换热用管30进行层叠而相邻的换热用管30的流入口31接合，而形成将各流入口31连通的联络管31a。另外，在各换热用管30的铅垂上方的上端附近所形成的流出口32也与流入口31同样地，与通过将各换热用管30进行层叠而相邻的换热用管30的流出口32接合，而形成将各流出口32连通的联络管32a。因此，水、油等第1换热介质从各换热用管30的流入口31流入并流向铅垂上方，且从各换热用管30的流出口32流出。Each of the heat exchange tubes 30 is formed by press working using a sheet material made of a metal material (such as stainless steel, aluminum, etc.) to form a flat hollow tube having a substantially rectangular shape as a whole, and becomes lead in the longitudinal direction. The lamination is performed in the vertical direction, and the contact points are joined by soldering (Japanese: ロウ付け). The inflow port 31 formed near the lower end of each heat exchange tube 30 vertically below is joined to the inflow port 31 of the adjacent heat exchange tube 30 by stacking the heat exchange tubes 30 to form a connection between each heat exchange tube 30 . The connection pipe 31a that the inflow port 31 communicates with. In addition, the outflow port 32 formed near the upper end vertically above each heat exchange tube 30 is similar to the inflow port 31, and the heat exchange tubes 30 adjacent to each other by stacking the heat exchange tubes 30 The outflow ports 32 of the two are connected to form a connecting pipe 32a connecting the outflow ports 32 . Therefore, the first heat exchange medium such as water or oil flows in from the inlet 31 of each heat exchange tube 30 to flow vertically upward, and flows out from the outlet 32 of each heat exchange tube 30 .
壳体50与各换热用管30同样地，通过由金属材料(例如不锈钢、铝等)制成的板材而形成为收纳由联络管31a、32a所连结的多个换热用管30的大致长方体形状的壳。在壳体50的上方形成有流入口51，在壳体50的下方形成有流出口52。因此，空气、排气等第2换热介质从形成于壳体50的上方的流入口51流入，且通过多个换热用管30之间并从形成于壳体50的下方的流出口52流出。Like each heat exchange tube 30, the casing 50 is formed of a sheet material made of a metal material (such as stainless steel, aluminum, etc.) to accommodate the plurality of heat exchange tubes 30 connected by the connecting tubes 31a and 32a. A cuboid-shaped shell. An inlet 51 is formed above the housing 50 , and an outlet 52 is formed below the housing 50 . Therefore, the second heat exchange medium such as air or exhaust gas flows in from the inlet 51 formed above the case 50 , passes between the plurality of heat exchange tubes 30 , and passes through the outlet 52 formed below the case 50 . flow out.
在各换热用管30的两扁平面33、35，由平滑的曲面而形成有多个波状凹凸34、36。在图1中，示出了换热用管30的两扁平面33、35中的一侧的扁平面33的波状凹凸34，对于另一侧的扁平面35(图1中背面侧的扁平面)的波状凹凸36用括号标注。波状凹凸34、36形成为，多个由实线表示的波的顶部连续的顶部线34a、36a和多个由虚线表示的底部连续的底部线34b、36b交替地均成为将V字(或者W字)在水平方向上相连而得的形状且V字(或者W字)的弯折部成为曲线。在此，波的顶部意味着波的凸部和凹部以正弦波表示时的90度的位置、即最大值的位置(凸部的顶)，波的底部意味着波的凸部和凹部以正弦波表示时的270度的位置、即最小值的位置(凹部的底)。如上所述，在多个换热用管30之间通过的第2换热介质从形成于壳体50的上方的流入口51流入，并从形成于壳体50的下方的流出口52流出，因此第2换热介质的主流的流动在顶部线34a、36a和底部线34b、36b的V字(或者W字)的斜线部以斜线部的角度(30度～60度的范围的角度)交差。这样，顶部线34a、36a和底部线34b、36b以成为将V字(或者W字)在水平方向相连而得的形状的方式形成于各换热用管30的两扁平面33、35，这是为了在第2换热介质流过时除了第2换热介质的主要流动之外还产生对换热有效的二次流。在此，二次流意味着对换热有效的沿着波状凹凸34、36的表面流动的流，与涡流和/或搅拌流不同。On both the flat surfaces 33 and 35 of the respective heat exchange tubes 30 , a plurality of undulations 34 and 36 are formed as smooth curved surfaces. In FIG. 1, the corrugated unevenness 34 of the flat surface 33 on one side of the two flat surfaces 33, 35 of the heat exchange tube 30 is shown. ) The wavy concavo-convex 36 is marked with brackets. The wavy concavities and convexities 34, 36 are formed such that a plurality of continuous top lines 34a, 36a represented by solid lines and a plurality of continuous bottom lines 34b, 36b represented by dotted lines alternately form V characters (or W The shape obtained by connecting in the horizontal direction and the bending part of the V (or W) becomes a curve. Here, the top of the wave means the position of 90 degrees when the convex part and the concave part of the wave are represented by a sine wave, that is, the position of the maximum value (the top of the convex part), and the bottom of the wave means that the convex part and the concave part of the wave are represented by a sine wave. The position of 270 degrees when the wave is indicated, that is, the position of the minimum value (the bottom of the concave portion). As described above, the second heat exchange medium passing between the plurality of heat exchange tubes 30 flows in from the inlet 51 formed above the casing 50 and flows out from the outlet 52 formed below the casing 50 . Therefore, the flow of the main flow of the second heat exchange medium is at the oblique portion of the V (or W) of the top line 34a, 36a and bottom line 34b, 36b at the angle of the oblique portion (the angle in the range of 30 degrees to 60 degrees). ) cross. In this way, the top lines 34a, 36a and the bottom lines 34b, 36b are formed on the two flat surfaces 33, 35 of each heat exchange tube 30 so as to form a V-shaped (or W-shaped) shape connected in the horizontal direction. This is to generate a secondary flow effective for heat exchange in addition to the main flow of the second heat exchange medium when the second heat exchange medium flows. Here, the secondary flow means a flow that flows along the surface of the corrugated protrusions and depressions 34 , 36 effective for heat exchange, and is different from the eddy flow and/or the stirring flow.
在实施例中，顶部线34a、36a和底部线34b、36b形成为，由直线形成的直线部34c、36c和由圆弧形成的圆弧部34d、36d交替地连续。在实施例中，作为圆弧部34d、36d的半径而设为直线部34c、36c的长度的1/5以上。这样，将V字(或者W字)的弯折部形成为圆弧(曲线)是因为：与如图4的比较例的换热器920所示那样、将波状凹凸934、936以顶部线934a、936a和底部线934b、936b成为将弯折部为锐角的V字(或者W字)在水平方向上相连而得的形状的方式形成于换热用管930的两扁平面933、935的情况相比，减小在压力加工时在弯折部所产生的应力集中。弯折部的最小半径越小则在压力加工时在弯折部所产生的应力集中越大，波状凹凸34、36的振幅越大则在压力加工时在弯折部所产生的应力集中越大。另外，应力集中越大，则越容易产生裂纹。结果，实施例的换热用管30与比较例的换热器920的换热用管930相比，能够在使波状凹凸34、36的振幅相同时提高压力加工时的成品率，能够在使压力加工时的成品率相同时增大波状凹凸34、36的振幅。In the embodiment, top lines 34a, 36a and bottom lines 34b, 36b are formed such that straight line portions 34c, 36c formed by straight lines and arc portions 34d, 36d formed by arcs continue alternately. In an embodiment, the radius of the arc portions 34d, 36d is set to be 1/5 or more of the length of the straight portions 34c, 36c. In this way, the reason for forming the V-shaped (or W-shaped) bending portion into an arc (curved line) is because, as shown in the heat exchanger 920 of the comparative example in FIG. , 936a and bottom lines 934b, 936b are formed on both flat surfaces 933, 935 of the heat exchange tube 930 in such a manner that a V-shape (or a W-shape) with a bent portion at an acute angle is connected in the horizontal direction. In comparison, the stress concentration generated in the bending part during press processing is reduced. The smaller the minimum radius of the bent portion, the greater the stress concentration generated at the bent portion during press processing, and the larger the amplitude of the wave-shaped unevenness 34, 36, the greater the stress concentration generated at the bent portion during press processing. . In addition, the greater the stress concentration, the easier it is for cracks to occur. As a result, compared with the heat exchange tube 930 of the heat exchanger 920 of the comparative example, the heat exchange tube 30 of the example can improve the yield during press working when the amplitudes of the corrugated irregularities 34 and 36 are made the same, and can be used The amplitude of the wavy unevenness 34 and 36 is increased when the yield during press working is the same.
关于实施例的波状凹凸34、36，其截面如图3所示那样形成为直线与圆弧交替地连续，圆弧的顶部和底部形成顶部线34a、36a和底部线34b、36b。这样，将波状凹凸34、36形成为截面为直线与圆弧交替地连续是因为：与将波状凹凸34、36形成为截面成为正弦曲线的情况相比，能够增大波的顶部和/或底部的最小半径，由此能够增大振幅。As shown in FIG. 3 , the corrugated unevenness 34 , 36 of the embodiment is formed in a cross section in which straight lines and arcs alternately continue, and the tops and bottoms of the arcs form top lines 34 a , 36 a and bottom lines 34 b , 36 b. In this way, the reason why the wave-like unevenness 34, 36 is formed so that the cross-section is straight and arc alternately continues is because: compared with the case where the wave-like unevenness 34, 36 is formed into a sinusoidal cross-section, the peak and/or bottom of the wave can be increased. Minimum radius, thus enabling increased amplitude.
此外，在实施例的换热用管30中，配置成：一侧的扁平面33的波状凹凸34与另一侧的扁平面35的波状凹凸36平行、即一侧的扁平面33的波状凹凸34的顶部线34a与另一侧的扁平面35的波状凹凸36的底部线36b匹配，并且一侧的扁平面33的波状凹凸34的底部线34b与另一侧的扁平面35的波状凹凸36的顶部线36a匹配。In addition, in the heat exchange tube 30 of the embodiment, the corrugated irregularities 34 of one flat surface 33 and the corrugated irregularities 36 of the other flat surface 35 are arranged in parallel, that is, the corrugated irregularities of the one flat surface 33 The top line 34a of 34 matches the bottom line 36b of the undulation 36 of the flat surface 35 on the other side, and the bottom line 34b of the undulation 34 of the flat surface 33 on one side matches the undulation 36 of the flat surface 35 on the other side. The top line 36a matches.
在以上说明了的实施例的换热器20中，在换热用管30的两扁平面33、35形成有波状凹凸34、36，作为波状凹凸34、36而形成为顶部线34a、36a和底部线34b、36b交替地均成为将V字(或者W字)在水平方向上相连而得的形状且V字(或者W字)的弯折部成为曲线，由此，与形成为顶部线934a、936a和底部线934b、936b成为将弯折部为锐角的V字(或者W字)在水平方向上相连而得的形状的比较例的换热器920的换热用管930相比，能够在使波状凹凸34、36的振幅相同时提高压力加工时的成品率，能够在使压力加工时的成品率相同时增大波状凹凸34、36的振幅。而且，以直线部34c、36c和圆弧部34d、36d交替地连续的方式形成顶部线34a、36a和底部线34b、36b，因此与将顶部线和底部线作为正弦曲线而形成的情况相比，能够增大弯折部的最小半径，能够减小在压力加工时在弯折部所产生的应力集中。由此，能够在使波状凹凸34、36的振幅相同时进一步提高压力加工时的成品率，能够在使压力加工时的成品率相同时进一步增大波状凹凸34、36的振幅。In the heat exchanger 20 of the embodiment described above, the corrugated unevenness 34, 36 is formed on both the flat surfaces 33, 35 of the heat exchange tube 30, and the corrugated unevenness 34, 36 is formed as the top lines 34a, 36a and The bottom lines 34b, 36b alternately form a shape in which V characters (or W characters) are connected in the horizontal direction, and the bending portion of the V characters (or W characters) forms a curved line, thereby forming the same shape as the top line 934a. , 936a and bottom lines 934b, 936b are formed by connecting V-shaped (or W-shaped) with bent parts in the horizontal direction, compared with the heat exchange tube 930 of the heat exchanger 920 of the comparative example. When the amplitudes of the wave-shaped irregularities 34 and 36 are made the same, the yield at the time of press working is improved, and the amplitudes of the wave-shaped unevennesses 34 and 36 can be increased when the yields at the time of press working are made the same. Furthermore, since the top lines 34a, 36a and the bottom lines 34b, 36b are formed in such a manner that the straight line portions 34c, 36c and the circular arc portions 34d, 36d are alternately continuous, the top line and the bottom line are formed as sinusoidal curves. , the minimum radius of the bent portion can be increased, and the stress concentration generated in the bent portion during press working can be reduced. Thereby, the yield during press working can be further improved when the amplitudes of the wave-like irregularities 34 and 36 are made the same, and the amplitude of the wave-like unevennesses 34 and 36 can be further increased when the yield during press working is made the same.
当然，顶部线34a、36a和底部线34b、36b以成为将V字(或者W字)在水平方向上相连而得的形状的方式形成于换热用管30的两扁平面33、35，因此能够在波状凹凸34、36的表面除了第2换热介质的主要流动之外产生对换热有效的二次流，能够成为高换热效率的换热器。而且，将波状凹凸34、36形成为其截面为直线与圆弧交替地连续，因此与形成为截面成为正弦曲线的情况相比，能够增大波的顶部和/或底部的最小半径，由此能够增大振幅。由此，能够成为换热效率更高的换热器。Of course, the top lines 34a, 36a and the bottom lines 34b, 36b are formed on the two flat surfaces 33, 35 of the heat exchange tube 30 so as to have a shape in which the V-shape (or W-shape) is connected in the horizontal direction. In addition to the main flow of the second heat exchange medium, a secondary flow effective for heat exchange can be generated on the surface of the corrugated unevenness 34, 36, and a heat exchanger with high heat exchange efficiency can be obtained. Furthermore, since the wave-like unevenness 34, 36 is formed so that its cross-section is continuous with a straight line and an arc alternately, compared with the case where the cross-section becomes a sinusoidal curve, the minimum radius of the top and/or bottom of the wave can be increased, thereby enabling Increase the amplitude. Thereby, it becomes possible to become a heat exchanger with higher heat exchange efficiency.
在实施例的换热器20中，将波状凹凸34、36形成为，顶部线34a、36a和底部线34b、36b形成为直线部34c、36c与圆弧部34d、36d交替地连续，但是顶部线和底部线形成为V字(或者W字)的弯折部成为曲线即可，因此也可以将顶部线和底部线形成为S字曲线部与圆弧部交替地连续，或者将顶部线和底部线形成为正弦曲线连续。In the heat exchanger 20 of the embodiment, the corrugated unevenness 34, 36 is formed such that the top line 34a, 36a and the bottom line 34b, 36b are formed so that the straight line portion 34c, 36c and the arc portion 34d, 36d continue alternately, but the top line The line and the bottom line can be formed into a V-shaped (or W-shaped) bending part to be a curved line, so the top line and the bottom line can also be formed into an S-shaped curved part and an arc part alternately continuous, or the top line and the bottom line can be formed into a curved line. become a continuous sinusoid.
在实施例的换热器20中，将波状凹凸34、36形成为其截面为直线与圆弧交替地连续，但是也可以形成为其截面为S字曲线部与圆弧部交替地连续，或者形成为其截面为正弦曲线连续。In the heat exchanger 20 of the embodiment, the wavy unevenness 34, 36 is formed such that the cross-section is continuous with straight lines and arcs alternately, but it may also be formed such that the cross-sections are continuous with S-shaped curves and arcs alternately, or It is formed so that its section is sinusoidally continuous.
在实施例的换热器20中，将第1换热介质和第2换热介质设为逆流，但是也可以将第1换热介质和第2换热介质设为正交流，也可以是第1换热介质和第2换热介质中的一方或双方迂回流动。In the heat exchanger 20 of the embodiment, the first heat exchange medium and the second heat exchange medium are set as counterflow, but it is also possible to set the first heat exchange medium and the second heat exchange medium as normal flow, or the second heat exchange medium One or both of the first heat exchange medium and the second heat exchange medium flow in a circuitous manner.
在实施例中，作为将本发明应用于无翅片的换热器20的换热用管的一例进行了说明，但是也可以应用于波纹翅片型换热器等翅片换热器。在该情况下，在翅片形成有由平滑的曲线形成的波状的凹凸，作为该波状的凹凸而形成为顶部线和底部线交替地均成为将V字(或者W字)在水平方向上相连而得的形状且V字(或者W字)的弯折部成为曲线、而且在翅片流动的流体的主要流动为V字的垂直方向即可。In the embodiment, an example in which the present invention is applied to the heat exchange tube of the heat exchanger 20 without fins has been described, but it can also be applied to fin heat exchangers such as corrugated fin heat exchangers. In this case, the fins are formed with wavy irregularities formed by smooth curves, and as the wavy irregularities, the top lines and the bottom lines are alternately formed so as to connect V-shape (or W-shape) in the horizontal direction. The resulting shape may be such that the V-shaped (or W-shaped) bent portion is a curved line, and the main flow of the fluid flowing through the fins is in the vertical direction of the V-shaped.
以上，使用实施例对用于实施本发明的实施方式进行了说明，但是本发明不受这样的实施例任何限定，当然在不脱离本发明的要旨的范围内能够以各种形态来实施。As mentioned above, although the embodiment for carrying out this invention was demonstrated using an Example, this invention is not limited to such an Example at all, Of course, it can implement in various forms in the range which does not deviate from the summary of this invention.
工业上的可利用性Industrial availability
本发明能够利用于换热器的制造产业等。The present invention can be utilized in the manufacturing industry of heat exchangers and the like.
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- 2015-12-28 JP JP2017558830A patent/JPWO2017115436A1/en active Pending
- 2015-12-28 EP EP15912102.9A patent/EP3399268A4/en not_active Withdrawn
- 2015-12-28 US US16/066,887 patent/US20180372425A1/en not_active Abandoned
- 2015-12-28 WO PCT/JP2015/086562 patent/WO2017115436A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| US20180372425A1 (en) | 2018-12-27 |
| EP3399268A1 (en) | 2018-11-07 |
| EP3399268A4 (en) | 2019-08-28 |
| JPWO2017115436A1 (en) | 2018-10-18 |
| WO2017115436A1 (en) | 2017-07-06 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20181023 |