CN113167549A - 波纹翅片型热交换器 - Google Patents

波纹翅片型热交换器 Download PDF

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CN113167549A
CN113167549A CN201980080720.4A CN201980080720A CN113167549A CN 113167549 A CN113167549 A CN 113167549A CN 201980080720 A CN201980080720 A CN 201980080720A CN 113167549 A CN113167549 A CN 113167549A
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corrugated fin
heat exchanger
pair
flat
type heat
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濑口孝辅
村山正人
片仓翔太郎
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T Rad Co Ltd
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Toyo Radiator Co Ltd
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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
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • 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
    • F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
    • 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
    • F28F1/025—Tubular elements of cross-section which is non-circular with variable shape, e.g. with modified tube ends, with different geometrical features
    • 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
    • F28F1/32—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 having portions engaging further tubular elements
    • 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
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/06—Arrangements for sealing elements into header boxes or end plates by dismountable joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/10—Secondary fins, e.g. projections or recesses on main fins

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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

本发明提供能够更换扁平管的波纹翅片型热交换器，其热交换性能提高。波纹翅片型热交换器具备：扁平管(2)，其具有一对平坦的平面部(2a)；波纹翅片(3)，其具有将一对立上面(3d)与立下面(3e)呈波形连接的底部(3b)以及顶部(3c)；多个管元件(5)，该多个管元件(5)通过在扁平管(2)的一对平面部(2a)接合波纹翅片(3)的仅底部(3b)而成；一对箱(1)，其供各管元件(5)的扁平管(2)的两端插入，各管元件(5)配置为各自的波纹翅片(3)的顶部(3c)相互分离，在立上面(3d)以及立下面(3e)的靠近顶部(3c)的位置处形成有与波纹翅片的波的棱线(3a)平行的引导气流用的突条(4)。

Description

波纹翅片型热交换器
技术领域
本发明涉及主要是采矿作业机械、建筑作业机械等的大型作业机械所用的波纹翅片型热交换器。
背景技术
作为作业机械用的波纹翅片型热交换器中的一种，有如下的改良后的波纹翅片型热交换器：当扁平管在作业现场由于飞石等而破损了时，能够在现场仅更换该破损了的扁平管。
图7所记载的热交换器具有多个管元件5，该多个管元件5通过将具有顶部3c和底部3b的波形的波纹翅片3的仅底部3b分别接合于扁平管2而构成，各管元件5的扁平管2的两端插入未图示的一对箱。并且，相邻的各管元件5的波纹翅片3的波的顶部3c配置为相互分离。
若这样分离，则在作业现场中能够在通风方向上确保空气流通到下游侧的扁平管的流路，并且能够防止尘埃等引起的扁平管之间的堵塞。并且在更换破损管时，能够确保作业空间。
发明内容
发明所要解决的课题
关于图7那样的能够在作业现场将破损管单独更换的热交换器，要求提高该热交换器的热交换效率。
在图7示出的热交换器的情况下，在波纹翅片的扁平管的接合部侧流动的气流9的一部分从波纹翅片的接合部的相反侧(顶部3c侧)的边缘流出，由此能够利用于热交换的空气流量减少，因此热交换效率降低。
为了提高热交换器的热交换效率，一般进行在翅片的顶部、底部以外的平面部形成百叶窗、花纹。
然而，上述的热交换器的相邻的管元件之间具有间隙，同以往一样在上述的热交换器的翅片的平面部上形成百叶窗等的话，则会使压力损失增大从而使风难以流动。
本发明提供用于解决上述各种问题的波纹翅片型热交换器。
用于解决课题的手段
技术方案1的发明是一种波纹翅片型热交换器，其特征在于，
所述波纹翅片型热交换器具备：
扁平管2，其具有横截面对置的一对平坦的平面部2a和将两平面部连结的一对连接部2b；
波纹翅片3，其交替地配置有一对立上面3d与立下面3e，并且具有将这些面3d、3e之间呈波形地连接的底部3b以及顶部3c；
多个管元件5，该多个管元件5通过在所述扁平管2的一对所述平面部2a分别接合波纹翅片3的仅所述底部3b而成；以及
一对箱1，其供各管元件5的扁平管2的两端插入，
所述各管元件5配置为各自的波纹翅片3的所述顶部3c相互分离，
在所述立上面3d以及立下面3e的靠近所述顶部3c的位置形成有与波纹翅片的波的棱线3a平行的引导气流用的突条4。
技术方案2的发明是技术方案1所述的波纹翅片型热交换器，其中，
所述突条4形成于波的所述立上面3d的外侧，并且形成于波的立下面3e的内侧。
技术方案3的发明是技术方案1所述的波纹翅片型热交换器，其中，
所述突条4形成于波的所述立上面3d的外侧，并且形成于波的立下面3e的外侧。
技术方案4的发明是技术方案1～3中任一项所述的波纹翅片型热交换器，其中，
所述扁平管2的两端的横截面形成为圆筒状部2c，所述扁平管2的圆筒状部2c经由筒形的橡胶衬套而插脱自如地插入所述箱的孔。
发明效果
技术方案1所述的发明是一种具有多个由波纹翅片与扁平管构成的管元件5的波纹翅片型热交换器，在该波纹翅片型热交换器中，各个波纹翅片3的顶部3c配置为相互分离，波纹翅片3的立上面3d以及立下面3e的靠近顶部3c的位置处形成有与波纹翅片的波的棱线3a平行的引导气流用的突条4。
该结构成为防止空气从波纹翅片3的接合部的相反侧(顶部3c侧)的边缘流出的屏障，由此提高热交换效率。而且，由于在波纹翅片3的顶部3c侧设置了突条4，因此刚性增强，提高了对抗外力的强度。
在技术方案2所述的发明中，突条4形成于波的立上面3d的外侧，并且形成于波的立下面3e的内侧。即，设置在立上面3d以及立下面3e的突条4的突出方向形成为相同方向。
该突条4的结构能够减少从波纹翅片3的顶部3c的边缘向间隙8流出的气流。该突条4的形状是对气流而言成为最小限度的屏障的形状，由此能够抑制气流的压力损失。
在技术方案3所述的发明中，突条4形成于波的立上面3d的外侧，并且形成于波的立下面3e的外侧。即，设置在立上面3d以及立下面3e的突条4相互向相反的方向突出，由此构成防止气流漏出的屏障。
附图说明
图1的(A)是在本申请发明的第一实施方式的热交换器的管元件内流通的气体的状态的说明立体图(A)，图1的(B)是图1的(A)的B-B向视剖视图。
图2是该热交换器的管元件的组装立体图。
图3是该热交换器的主视图。
图4是图3的IV部的扩大剖面立体图。
图5是本申请发明的第二实施方式的热交换器的管元件的主要部分剖视图。
图6是以往类型的波纹翅片和本申请发明的波纹翅片的热交换性能的比较图。
图7是在以往类型的波纹翅片型热交换器的管元件内流通的气体的状态的说明图。
具体实施方式
接下来，基于附图对本发明的实施方式进行说明。
本发明的热交换器是主要用于在尘埃较多的场所中使用的采矿作业机械、建筑作业机械等的大型作业机械的波纹翅片型热交换器，特别是能够将插入至一对箱的多个扁平管单独拆卸进行更换的结构。
如图2所示，该热交换器的扁平管2具有：对置的一对平坦的平面部2a；将两平面部2a连结的一对连接部2b；以及在该热交换器的扁平管2的两端形成的横截面是圆形的圆筒状部2c。
如图1的(A)、图1的(B)所示，波纹翅片3具有波形沿着将扁平管2的开口端连结的轴线的方向连续的形状。即，一对立上面3d与立下面3e被交替配置，底部3b以及顶部3c将这些面3d，3e之间呈波形地连接，由此形成波形的波纹翅片。
如图2所示，通过在扁平管2的一对平面部2a接合波纹翅片3的仅底部3b而形成管元件5。
如图3所示，各管元件5的扁平管2的圆筒状部2c经由筒形的衬套而插脱自如地插入一对箱1的管插入孔。此时，管元件5的扁平管2与波纹翅片3之间被预先在高温的炉内钎焊接合。
相邻的管元件5的各波纹翅片3的顶部3c相互分离，并且如图4所示那样，相邻的管元件5能够配置为锯齿状。
本发明的特征部分在于突条4，突条4形成于各管元件5的波纹翅片3的立上面3d以及立下面3e。
如图1的(A)以及图2所示，在波纹翅片3的立上面3d以及立下面3e的靠近顶部3c的位置处形成有与波纹翅片的波的棱线3a平行的突条4。该突条4是用于防止气流从波纹翅片3的表面向间隙8流出的屏障。如图1的(B)所示，形成于立上面3d的突条4向立上面3d的外侧突出，形成于立下面3e的突条4向立下面3e的内侧突出(突条4的突出方向是相同方向。)。
接下来，图5是本发明的特征部分的突条4的第二实施方式。
该第二实施方式与第一实施方式的不同点在于突条4的突出方向。即，如图5所记载的那样，设置在立上面3d以及立下面3e的突条4相互向相反的方向突出。由此构成了有效防止气流向间隙8漏出的屏障。
图6是分别比较第一实施方式(中间的图表)与以往技术的直线型的波纹翅片(左侧的图表)的放热量之比与压力损失之比、以及第二实施方式(右侧的图表)的波纹翅片3与以往技术的直线型的波纹翅片(左侧的图表)的放热量之比(％)与压力损失之比(％)的图表。以直线型为基准(100％)。解析条件为管内壁温度80℃，气体温度45℃，气体流速8m/s。
如图6所示，第一实施方式相比以往技术，放热量上升8％，而压力损失上升27％。第二实施方式相比以往技术，放热量上升5％，而压力损失上升19％。
虽然在第一实施方式、第二实施方式中压力损失都上升若干，但确认到了放热量的提高，由此可以认为能够更换管的热交换器的放热性能确有提高。
附图标记说明
1 箱
2 扁平管
2a 平面部
2b 连接部
2c 圆筒状部
3 波纹翅片
3a 棱线
3b 底部
3c 顶部
3d 立上面
3e 立下面
4 突条
5 管元件
6 芯体
6a 第一列芯体
6b 第二列芯体
6c 第三列芯体
6d 第四列芯体
7 出入口管
8 间隙
9 气流

Claims (4)

1.一种波纹翅片型热交换器，其特征在于，
所述波纹翅片型热交换器具备：
扁平管(2)，其具有横截面对置的一对平坦的平面部(2a)和将两平面部连结的一对连接部(2b)；
波纹翅片(3)，其交替地配置有一对立上面(3d)与立下面(3e)，并且具有将这些面(3d、3e)之间呈波形连接的底部(3b)以及顶部(3c)；
多个管元件(5)，该多个管元件(5)通过在所述扁平管(2)的一对所述平面部(2a)分别接合波纹翅片(3)的仅所述底部(3b)而成；以及
一对箱(1)，其供各管元件(5)的扁平管(2)的两端插入，
所述各管元件(5)配置为各自的波纹翅片(3)的所述顶部(3c)相互分离，
在所述立上面(3d)以及立下面(3e)的靠近所述顶部(3c)的位置形成有与波纹翅片的波的棱线(3a)平行的引导气流用的突条(4)。
2.根据权利要求1所述的波纹翅片型热交换器，其中，
所述突条形成于波的所述立上面(3d)的外侧，并且形成于波的立下面(3e)的内侧。
3.根据权利要求1所述的波纹翅片型热交换器，其中，
所述突条形成于波的所述立上面(3d)的外侧，并且形成于波的立下面(3e)的外侧。
4.根据权利要求1至3中任一项所述的波纹翅片型热交换器，其中，
所述扁平管(2)的两端的横截面形成为圆筒状部(2c)，所述扁平管(2)的圆筒状部(2c)经由筒形的橡胶衬套而插脱自如地插入所述箱的孔。
CN201980080720.4A 2019-01-15 2019-12-25 波纹翅片型热交换器 Pending CN113167549A (zh)

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