WO2018161419A1 - 一种轻质强冷却扰流元件 - Google Patents

一种轻质强冷却扰流元件 Download PDF

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Publication number
WO2018161419A1
WO2018161419A1 PCT/CN2017/081867 CN2017081867W WO2018161419A1 WO 2018161419 A1 WO2018161419 A1 WO 2018161419A1 CN 2017081867 W CN2017081867 W CN 2017081867W WO 2018161419 A1 WO2018161419 A1 WO 2018161419A1
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Prior art keywords
spoiler
lightweight
fin
spoiler element
bent
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PCT/CN2017/081867
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English (en)
French (fr)
Inventor
张九新
曹进
卞红
吴海燕
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南通江华热动力机械有限公司
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Publication of WO2018161419A1 publication Critical patent/WO2018161419A1/zh

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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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal

Definitions

  • the utility model relates to a heat exchanger spoiler element, in particular to a light and strong cooling spoiler element.
  • the main factors affecting the heat transfer coefficient (K) of the heat exchanger include: the flow state of the liquid inside and outside the heat exchanger, and the shape and size of the heat exchange surface.
  • various strengthening elements and strengthening measures have appeared at home and abroad, mainly including the use of threaded tubes, transverse tubes, zoom tubes, and large tubes in heat exchangers. Lead multi-groove grooved tube, integral double-sided spiral finned tube and disturbed flow in the heat exchange tube to enhance heat transfer inside the tube.
  • the addition of the turbulent flux in the heat exchange tube for enhanced heat transfer has been used in the industry for many years, which can significantly improve the total heat transfer coefficient of the heat exchanger, and can greatly reduce the heat transfer of the heat exchanger.
  • the area, the weight of the equipment, and the saving of a large amount of metal materials, its many advantages have increasingly attracted people's attention.
  • the purpose of the utility model is to provide a lightweight and strong cooling spoiler element, and propose a novel spoiler element structure in the existing spoiler structure form, which adopts a chip structure and a two-way puncture fin to make the liquid
  • the swirling flow is formed in the spoiler tube, and the heat transfer coefficient is greatly improved without increasing the pressure drop.
  • a lightweight and strong cooling spoiler element wherein the spoiler element is a chip structure, and a plurality of sets of spoiler units are equally spaced on the surface, each set of spoiler units has a via hole, and the axis is symmetrically disposed in the via hole Side spoiler, One side of the spoiler is pierced upward to form a forward fin, and the other side of the spoiler is pierced downward to form a reverse fin, and the opening angle of the forward and reverse fins is 45° The two long sides of the spoiler element are bent to form a piping structure.
  • the spoiler element is bent upward to form a 70° roll and the other side is bent downward to form a 70° roll.
  • the spoiler element is made of an aluminum-magnesium alloy.
  • the via pore size is 3 mm.
  • the light and strong cooling spoiler component disclosed by the utility model selects magnesium-aluminum alloy material on the material, so that the spoiler component has the characteristics of large elasticity, good rigidity, high seismic shock absorption resistance and strong impact load bearing capability;
  • the side of the spoiler element is bent downward toward the upper side, and the spoiler element of the structure is inserted into the heat exchange tube, and the fluid entering the heat transfer tube near the wall is divided to form an axial vortex, which increases the boundary.
  • the disturbance of the layer causes the boundary layer to separate, effectively destroying the boundary layer, so that the radial temperature gradient changes are weakened.
  • the via holes on the spoiler element and the fins arranged in the forward direction and the direction form a swirling flow of the radial fluid, increasing the fluid Disturbance greatly increases the heat transfer coefficient without increasing the pressure drop.
  • the light heavy cooling spoiler component disclosed by the utility model has the following beneficial effects: the chip structure is combined with the two-way puncture fin, so that the liquid forms a swirl flow in the spoiler tube, The heat transfer coefficient is greatly increased under conditions of increased pressure drop.
  • Figure 1 is a schematic view of the structure of the present invention
  • Figure 2 is a front view of the utility model
  • Figure 3 is a plan view of the present invention.
  • Figure 4 is a side view of the present invention.
  • a lightweight and strong cooling spoiler element disclosed in the present invention is inserted and installed inside a heat exchange tube, and the spoiler element 1 is a chip structure, and the surface of the spoiler element 1 is There are multiple sets of spoiler units at intervals, each set of spoiler units includes a via 2 with a hole diameter of 3 mm, a left spoiler hole 3 and a right spoiler hole 4, and a left side spoiler hole and a right side disturbance hole.
  • the flow holes are symmetrically disposed with respect to the through holes, the left side spoiler holes 3 are pierced upward to form the forward fins 5, and the right side spoiler holes 4 are pierced downward to form the reverse fins 6, and the forward fins 5 are
  • the opening angle with the counter fin 6 is 45°.
  • One side of the spoiler element 1 is continuously bent upward to form a 70° flange 7 and the other side is bent downward to form a 70° flange 8.
  • the sides are rolled and replaced.
  • the inner wall of the heat pipe is fitted.
  • the spoiler element is made of aluminum-magnesium alloy material, so that the spoiler element has the characteristics of large elasticity, good rigidity, high shock absorption and shock resistance, and strong impact load bearing capability.
  • the light and strong cooling spoiler element disclosed by the utility model bends the side of the spoiler element toward the upper side toward the upper side, and the spoiler element of the structure is inserted into the heat exchange tube to enter the change
  • the fluid near the wall in the heat pipe is divided into axial vortices, which increases the disturbance of the boundary layer, causes the boundary layer to separate, effectively destroys the boundary layer, and weakens the radial temperature gradient.
  • the vias on the spoiler element and the forward sum The fins disposed in the direction form a swirling flow of the radial fluid, increasing the disturbance of the fluid and greatly increasing the heat transfer coefficient without increasing the pressure drop.

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

Abstract

一种轻质强冷却扰流元件，所述扰流元件（1）为片式结构，其表面等间隔设有多组扰流单元，每组扰流单元具有一个过孔（2），以及轴对称设置在过孔（2）两侧的扰流孔（3，4），一侧的扰流孔（3）向上刺破形成正向翅片（5），另一侧的扰流孔（4）向下刺破形成反向翅片（6），且正向翅片（5）与反向翅片（6）的开口角度为45°所述扰流元件（1）两长侧边折弯形成滚边结构。

Description

一种轻质强冷却扰流元件 技术领域
本实用新型涉及换热器扰流元件，尤其涉及一种轻质强冷却扰流元件。
背景技术
换热器在传热过程中，影响换热器传热系数(K)的主要因素包括：换热器内、外部液体的流动状态，换热面的形状及尺寸等。为了提高换热器的传热系数，强化换热器的传热效率，国内外出现了多种强化元件及强化措施，主要包括在换热器中使用螺纹管、横纹管、缩放管、大导程多头沟槽管、整体双面螺旋翅片管以及在换热管中加扰流子来强化管内换热等。
其中，在换热管中加扰流子添加物进行强化传热在工业上已使用了多年，它可以使换热器总的传热系数出现明显的提高，可以大大节省换热器的传热面积，降低设备重量，节约大量金属材料，它的许多优点已日益引起人们的重视。
扰流子强化元件有多种形式，现在使用最多的包括:金属丝制元件、金属螺旋圈、盘状构件、麻花铁、翼形物等。这些扰流子强化元件有一个共同的特点就是：在换热器换热管中这些扰流子添加物可以有效降低换热器传热过程中的总热阻，大大地提高换热器的传热系数(K)值，对换热器的传热效果增强明显。
实用新型内容
本实用新型的目的在于提供一种轻质强冷却扰流元件，在现有的扰流子结构形式上提出一种新型扰流元件结构，采用片式结构配合双向刺破翅片，使得液体在扰流管内形成旋流，在不增大压降的条件下大大提高传热系数。
为实现上述目的，本实用新型提出如下技术方案：
一种轻质强冷却扰流元件，所述扰流元件为片式结构，其表面等间隔设有多组扰流单元，每组扰流单元具有一个过孔，以及轴对称设置在过孔两侧的扰流孔， 一侧的扰流孔向上刺破形成正向翅片，另一侧的扰流孔向下刺破形成反向翅片，且正向翅片与反向翅片的开口角度为45°所述扰流元件两长侧边折弯形成滚边结构。
作为优选，所述扰流元件一侧向上折弯形成70°滚边，另一侧向下折弯形成70°滚边。
作为优选，所述扰流元件采用铝镁合金材质。
作为优选，所述过孔孔径为3mm。
本实用新型所揭示的一种轻质强冷却扰流元件，其材质上选择镁铝合金，使得扰流元件具有弹性大，刚性好，抗震减震性高，承受冲击载荷能力强的特点；
将扰流元件两侧边一侧朝上一侧朝下折弯处理，这种结构的扰流元件装入换热管内，进入换热管内靠近壁面的流体被分割形成轴向旋涡，增加了边界层的扰动，使得边界层分离，有效破坏边界层，使得径向温度梯度变化减弱，此外扰流元件上的过孔以及正向和方向设置的翅片将径向流体形成旋流，增加流体的扰动，在不增大压降的条件下大大提高传热系数。
与现有技术相比，本实用新型揭示的一种轻质强冷却扰流元件，具有如下有益效果：采用片式结构配合双向刺破翅片，使得液体在扰流管内形成旋流，在不增大压降的条件下大大提高传热系数。
附图说明
图1是本实用新型结构示意图；
图2是本实用新型的主视图；
图3是本实用新型的俯视图；
图4是本实用新型的侧视图。
具体实施方式
下面将结合附图对本实用新型实施例的技术方案进行清楚、完整的描述。
如图1～4所示，本实用新型所揭示的一种轻质强冷却扰流元件，穿插安装在换热管内部，该扰流元件1为片式结构，所述扰流元件1表面等间隔设置有多组扰流单元，每一组扰流单元均包括一个孔径为3mm的过孔2，左侧扰流孔3及右侧扰流孔4，且左侧扰流孔与右侧扰流孔相对过孔轴对称设置，所述左侧扰流孔3向上刺破形成正向翅片5，右侧扰流孔4向下刺破形成反向翅片6，且正向翅片5与反向翅片6的开口角度为45°。
所述扰流元件1一侧边连续向上折弯形成70°滚边7，另一侧向下折弯形成70°滚边8，当扰流元件装入换热管时，通过两侧的滚边与换热管内壁贴合。
所述扰流元件采用铝镁合金材质，使得扰流元件具有弹性大，刚性好，抗震减震性高，承受冲击载荷能力强的特点。
本实用新型所揭示的一种轻质强冷却扰流元件，将扰流元件两侧边一侧朝上一侧朝下折弯处理，这种结构的扰流元件装入换热管内，进入换热管内靠近壁面的流体被分割形成轴向旋涡，增加了边界层的扰动，使得边界层分离，有效破坏边界层，使得径向温度梯度变化减弱，此外扰流元件上的过孔以及正向和方向设置的翅片将径向流体形成旋流，增加流体的扰动，在不增大压降的条件下大大提高传热系数。
本实用新型的技术内容及技术特征已揭示如上，然而熟悉本领域的技术人员仍可能基于本实用新型的教示及揭示而作种种不背离本实用新型精神的替换及修饰，因此，本实用新型保护范围应不限于实施例所揭示的内容，而应包括各种不背离本实用新型的替换及修饰，并为本专利申请权利要求所涵盖。

Claims (4)

  1. 一种轻质强冷却扰流元件，其特征在于：所述扰流元件为片式结构，其表面等间隔设有多组扰流单元，每组扰流单元具有一个过孔，以及轴对称设置在过孔两侧的扰流孔，一侧的扰流孔向上刺破形成正向翅片，另一侧的扰流孔向下刺破形成反向翅片，且正向翅片与反向翅片的开口角度为45°所述扰流元件两长侧边折弯形成滚边结构。
  2. 根据权利要求1所述的一种轻质强冷却扰流元件，其特征在于：所述扰流元件一侧向上折弯形成70°滚边，另一侧向下折弯形成70°滚边。
  3. 根据权利要求1所述的一种轻质强冷却扰流元件，其特征在于：所述扰流元件采用铝镁合金材质。
  4. 根据权利要求1所述的一种轻质强冷却扰流元件，其特征在于：所述过孔孔径为3mm。
PCT/CN2017/081867 2017-03-09 2017-04-25 一种轻质强冷却扰流元件 WO2018161419A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170292790A1 (en) * 2016-04-12 2017-10-12 Ecodrain Inc. Heat exchange conduit and heat exchanger

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CN201373704Y (zh) * 2009-03-10 2009-12-30 南通江华热动力机械有限公司 带孔扰流器
CN201867111U (zh) * 2010-10-28 2011-06-15 湖北登峰换热器有限公司 内置强化扰流片式换热管
EP2336701A2 (en) * 2009-12-14 2011-06-22 Delphi Technologies, Inc. Low pressure drop fin with selective micro surface enhancement
CN202770296U (zh) * 2012-09-20 2013-03-06 华电重工股份有限公司 一种带扰流板的翅片管
CN202836328U (zh) * 2011-12-31 2013-03-27 南通江华热动力机械有限公司 一种扰流元件
CN204806953U (zh) * 2015-02-16 2015-11-25 宁波市哈雷换热设备有限公司 带扰流片的换热管

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201373704Y (zh) * 2009-03-10 2009-12-30 南通江华热动力机械有限公司 带孔扰流器
EP2336701A2 (en) * 2009-12-14 2011-06-22 Delphi Technologies, Inc. Low pressure drop fin with selective micro surface enhancement
CN201867111U (zh) * 2010-10-28 2011-06-15 湖北登峰换热器有限公司 内置强化扰流片式换热管
CN202836328U (zh) * 2011-12-31 2013-03-27 南通江华热动力机械有限公司 一种扰流元件
CN202770296U (zh) * 2012-09-20 2013-03-06 华电重工股份有限公司 一种带扰流板的翅片管
CN204806953U (zh) * 2015-02-16 2015-11-25 宁波市哈雷换热设备有限公司 带扰流片的换热管

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170292790A1 (en) * 2016-04-12 2017-10-12 Ecodrain Inc. Heat exchange conduit and heat exchanger
US11009296B2 (en) * 2016-04-12 2021-05-18 6353908 Canada Inc. Heat exchange conduit and heat exchanger

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