技术领域technical field
本发明涉及一种具有仿生翼型翅片的印刷电路板换热器芯体，属于高效低阻换热装置技术领域。The invention relates to a printed circuit board heat exchanger core body with bionic airfoil fins, belonging to the technical field of high-efficiency and low-resistance heat exchange devices.
背景技术Background technique
为了实现“碳中和、碳达峰”的目标和承诺，进一步提高能源利用率、降低污染物排放已上升为国家战略。近些年，以超临界CO2为工质的布雷顿循环动力系统因其能量密度更高，设备更紧凑，利于系统模块化、小型化、快速变负荷等诸多优势，在聚光太阳能热发电、新型火力发电、先进压缩储能、先进核反应堆和增强型地热系统等领域中展现出广阔的应用前景。在上述动力系统中，涉及超临界CO2与超临界CO2(或熔盐、高温颗粒、导热油和空气)等诸多换热过程，换热器芯体成本约占整体系统成本的50％以上。印刷电路板式换热器芯体以其高效紧凑、耐高温高压等突出优点，得到业界广泛推荐和采用。In order to achieve the goal and commitment of "carbon neutrality and carbon peaking", further improving energy utilization and reducing pollutant emissions has become a national strategy. In recent years, the Brayton cycle power system using supercritical CO2 as the working fluid has been used in concentrated solar thermal power generation due to its higher energy density, more compact equipment, and many advantages such as system modularization, miniaturization, and rapid load change. , New thermal power generation, advanced compressed energy storage, advanced nuclear reactors and enhanced geothermal systems have shown broad application prospects. In the above-mentioned power system, involving supercritical CO2 and supercritical CO2 (or molten salt, high-temperature particles, heat transfer oil and air) and many other heat exchange processes, the cost of the heat exchanger core accounts for more than 50% of the overall system cost . Printed circuit board heat exchanger core is widely recommended and adopted by the industry for its outstanding advantages such as high efficiency, compactness, high temperature and high pressure resistance.
常规的印刷电路板式换热器芯体中流体通道多采用平直通道，随着研发与优化设计的深入，多种形式的通道翅片结构逐渐被提出，如Z字型、S型、翼型、非对称翼型和菱形等，当前研究认为翼型翅片具有较好的综合换热性能，但由于流体绕流的影响，传统的光滑平直翼型翅片顶点后缘面往往存在流动脱体现象，并在翅片后缘处形成尾部分离涡流区，尾流区流体速度较小，动能耗散较大，同时尾流涡脱落的相干性，导致流动阻力增加和流致噪声产生，使翅片综合换热性能减弱。因此，需要一种新的技术方案来解决上述问题。The fluid channels in the conventional printed circuit board heat exchanger core are mostly straight channels. With the deepening of research and development and optimization design, various forms of channel fin structures have been gradually proposed, such as Z-shaped, S-shaped, airfoil , asymmetric airfoil and rhombus, etc. The current research shows that airfoil fins have good comprehensive heat transfer performance, but due to the influence of fluid flow, the traditional smooth and straight airfoil fins often have flow shedding at the apex trailing edge surface. body phenomenon, and form the tail separation vortex area at the trailing edge of the fin, the fluid velocity in the wake area is small, the kinetic energy dissipation is large, and the coherence of the wake vortex shedding leads to increased flow resistance and flow-induced noise, making The comprehensive heat transfer performance of the fins is weakened. Therefore, a new technical solution is needed to solve the above problems.
发明内容Contents of the invention
为了解决上述问题，本发明提出了一种具有仿生翼型翅片的印刷电路板换热器芯体，解决了流动分离脱体现象导致翼型翅片后缘流动阻力增加，换热性能减弱的问题。In order to solve the above problems, the present invention proposes a printed circuit board heat exchanger core with bionic airfoil fins, which solves the problem of increased flow resistance and weakened heat transfer performance at the trailing edge of the airfoil fins caused by the phenomenon of flow separation and detachment. question.
本发明解决其技术问题采取的技术方案是：The technical scheme that the present invention solves its technical problem to take is:
本发明公开了一种具有仿生翼型翅片的印刷电路板换热器芯体，包括：多个换热板及多个仿生翼型翅片，所述多个仿生翼型翅片采用仿生鲸鱼鳍设计，分别间隔排列在每个换热板上，所述多个换热板相互堆叠，并预留有流体入口与流体出口，形成完整的流体通道。The invention discloses a printed circuit board heat exchanger core body with bionic airfoil fins, comprising: multiple heat exchange plates and multiple bionic airfoil fins, the multiple bionic airfoil fins adopt bionic whale The fins are designed and arranged at intervals on each heat exchange plate, and the plurality of heat exchange plates are stacked with each other, and a fluid inlet and a fluid outlet are reserved to form a complete fluid channel.
进一步的，所述仿生翼型翅片为对称结构，翅片宽度为1～5mm，翅片弦长为4～20mm，翅片高度与流体通道高度相同。Further, the bionic airfoil fins have a symmetrical structure, the width of the fins is 1-5 mm, the chord length of the fins is 4-20 mm, and the height of the fins is the same as that of the fluid channel.
进一步的，所述仿生翼型翅片前缘设置有呈余弦分布的凹凸结构，余弦结构周期数为2～6，所述余弦凹凸结构的顶底间距为翅片弦长的1/10～1/6，余弦凹凸结构断面翼型尺寸与顶部端面翼型尺寸成比例。Further, the leading edge of the bionic airfoil fin is provided with a concave-convex structure in a cosine distribution, the number of cosine structure periods is 2-6, and the distance between the top and the bottom of the cosine concave-convex structure is 1/10-1 of the chord length of the fin. /6, the section airfoil size of the cosine concave-convex structure is proportional to the top end airfoil size.
进一步的，所述仿生翼型翅片翼面设置有多个成对的矩形纵向涡发生器，所述矩形纵向涡发生器设置在翅片后缘起始位置。Further, the bionic airfoil fin surface is provided with a plurality of pairs of rectangular longitudinal vortex generators, and the rectangular longitudinal vortex generators are arranged at the starting position of the trailing edge of the fin.
进一步的，所述矩形纵向涡发生器前端与翅片前端的距离为翅片弦长的1/4～1/3，所述矩形纵向涡发生器长度为0.5～3.5mm，高度为0.25～1.75mm，厚度为0.1～2mm，与水平方向夹角为20°～40°。Further, the distance between the front end of the rectangular longitudinal vortex generator and the front end of the fin is 1/4 to 1/3 of the chord length of the fin, the length of the rectangular longitudinal vortex generator is 0.5 to 3.5 mm, and the height is 0.25 to 1.75 mm. mm, the thickness is 0.1~2mm, and the angle with the horizontal direction is 20°~40°.
进一步的，所述相邻换热板的仿生翼型翅片朝向及流体通道内的流体流向相反，分别作为冷流体换热板和热流体换热板使用。Further, the direction of the bionic airfoil fins of the adjacent heat exchange plates and the flow direction of the fluid in the fluid channel are opposite, and they are respectively used as cold fluid heat exchange plates and hot fluid heat exchange plates.
进一步的，所述换热板的流体入口设置在仿生翼型翅片前缘对应方向一侧，流体出口设置在仿生翼型翅片后缘对应方向一侧。Further, the fluid inlet of the heat exchange plate is arranged on the side corresponding to the direction of the leading edge of the bionic airfoil fin, and the fluid outlet is arranged on the side corresponding to the direction of the trailing edge of the bionic airfoil fin.
进一步的，所述换热板之间采用扩散焊工艺密封焊接，换热板高度为1～8mm，流体通道高度为1～12mm，换热板高度与流体通道高度之比范围为1～2。Further, the heat exchange plates are sealed and welded by diffusion welding process, the height of the heat exchange plates is 1-8 mm, the height of the fluid channel is 1-12 mm, and the ratio of the height of the heat exchange plate to the height of the fluid channel is 1-2.
进一步的，所述仿生翼型翅片在换热板上呈错排设置，每排所述仿生翼型翅片间距相等。Further, the bionic airfoil fins are arranged in staggered rows on the heat exchange plate, and the distance between the bionic airfoil fins in each row is equal.
进一步的，所述仿生翼型翅片横向间距为翅片宽度的0.8～4倍，翅片错列间距为翅片弦长的0.8～2倍，翅片纵向间距为翅片弦长的1.6～4倍。Further, the transverse spacing of the bionic airfoil fins is 0.8 to 4 times the width of the fins, the staggered spacing of the fins is 0.8 to 2 times the chord length of the fins, and the longitudinal spacing of the fins is 1.6 to 2 times the chord length of the fins. 4 times.
本发明实施例的技术方案可以具有的有益效果如下：The beneficial effects that the technical solutions of the embodiments of the present invention may have are as follows:
(1)翼型翅片前缘采用仿生凹凸结构设计，可以在翼型前缘斜面诱导产生旋转的纵向涡流，强化翅片前缘的对流传热能力，同时纵向涡增强了流体扰动，加强了边界层流体与主流体之间的能质交换，为边界层的持续附着提供能量，减缓了翼型后缘面的边界层流动分离，从而降低流动阻力和强化传热；(1) The leading edge of the airfoil fin is designed with a bionic concave-convex structure, which can induce a rotating longitudinal vortex on the slope of the leading edge of the airfoil, and strengthen the convective heat transfer capacity of the leading edge of the fin. At the same time, the longitudinal vortex enhances the fluid disturbance and strengthens the The energy-mass exchange between the boundary layer fluid and the main fluid provides energy for the continuous attachment of the boundary layer, slowing down the flow separation of the boundary layer on the trailing edge surface of the airfoil, thereby reducing flow resistance and enhancing heat transfer;
(2)翼型后缘面设置成对的矩形纵向涡发生器，可进一步强化二次涡流扰动，增强翅片边界层流体与主流体之间的混合；同时矩形纵向涡发生器在翼面形成渐缩型通道，流体在类似于喷管的通道中被加速，在翼型后缘形成射流冲击，在二次涡流和射流的综合作用下，翼型后缘的流动分离和尾流涡脱落的相干性进一步得到改善，使边界层传热强化和减弱流致噪声，提升了换热器芯体综合换热性能；(2) A pair of rectangular longitudinal vortex generators are arranged on the trailing edge of the airfoil, which can further strengthen the secondary vortex disturbance and enhance the mixing between the fin boundary layer fluid and the main fluid; at the same time, the rectangular longitudinal vortex generators are formed on the airfoil In the tapered channel, the fluid is accelerated in a channel similar to the nozzle, and a jet impact is formed at the trailing edge of the airfoil. Under the combined action of the secondary vortex and the jet, the flow separation at the trailing edge of the airfoil and the shedding of the wake vortex The coherence is further improved, which strengthens the heat transfer in the boundary layer and reduces the flow-induced noise, and improves the comprehensive heat transfer performance of the heat exchanger core;
(3)翼型翅片前缘的凹凸结构设计和矩形纵向涡发生器扩展表面，增大了换热面积，使换热器芯体紧凑性得到提升。(3) The concave-convex structure design of the leading edge of the airfoil fin and the extended surface of the rectangular longitudinal vortex generator increase the heat exchange area and improve the compactness of the heat exchanger core.
本申请提供的一种具有仿生翼型翅片的印刷电路板换热器芯体，通过将传统翼型翅片进行仿生鲸鱼鳍设计，增大了换热面积，提高了换热器芯体紧凑性，同时能够诱导产生强烈的纵向涡流和高速射流，减弱翼型后缘流动分离和尾流涡脱落的相干性，从而降低换热通道的流通阻力和流致噪声，提高了翼型翅片的综合换热性能。The application provides a printed circuit board heat exchanger core with bionic airfoil fins, which increases the heat transfer area and improves the compactness of the heat exchanger core by applying the bionic whale fin design to the traditional airfoil fins. At the same time, it can induce strong longitudinal vortex and high-speed jet flow, weaken the coherence of airfoil trailing edge flow separation and wake vortex shedding, thereby reducing the flow resistance and flow-induced noise of the heat exchange channel, and improving the airfoil fin performance. Comprehensive heat transfer performance.
附图说明Description of drawings
图1是根据一示例性实施例示出的一种具有仿生翼型翅片的印刷电路板换热器芯体的结构示意图；Fig. 1 is a schematic structural view of a printed circuit board heat exchanger core with bionic airfoil fins according to an exemplary embodiment;
图2是根据一示例性实施例示出的仿生翼型翅片结构示意图；Fig. 2 is a schematic diagram showing the structure of a bionic airfoil fin according to an exemplary embodiment;
图3是根据一示例性实施例示出的仿生翼型翅片俯视图；Fig. 3 is a top view of a bionic airfoil fin according to an exemplary embodiment;
图4是根据一示例性实施例示出的仿生翼型翅片侧视图；Fig. 4 is a side view of a bionic airfoil fin according to an exemplary embodiment;
图5是根据一示例性实施例示出的仿生翼型翅片前视图；Fig. 5 is a front view of a bionic airfoil fin according to an exemplary embodiment;
图6是根据一示例性实施例示出的一种具有仿生翼型翅片的印刷电路板换热器芯体前视图；Fig. 6 is a front view of a printed circuit board heat exchanger core with bionic airfoil fins according to an exemplary embodiment;
图7是根据一示例性实施例示出的一种具有仿生翼型翅片的印刷电路板换热器芯体俯视图。Fig. 7 is a top view of a printed circuit board heat exchanger core with bionic airfoil fins according to an exemplary embodiment.
图中：1换热板、2冷流体通道、3热流体通道、4仿生翼型翅片、5仿生翼型翅片前缘凹凸结构、6矩形纵向涡发生器；其中，h1为换热板高度，h2为流体通道高度，Lh为翅片横向间距，Lc为翅片错列间距，Lz为翅片纵向间距，L为翅片弦长，A为凹凸结构的顶底间距，h为矩形纵向涡发生器高度，L1为矩形纵向涡发生器前端到翅片前端的距离，L2为矩形纵向涡发生器长度，x为到翅片顶部的距离，Lx为距离翅片顶部x位置处的翅片弦长，H为翅片高度，α为矩形纵向涡发生器与水平方向夹角，K为翅片宽度，Kx为距离翅片顶部x位置处的翅片宽度。In the figure: 1 heat exchange plate, 2 cold fluid channel, 3 hot fluid channel, 4 bionic airfoil fin, 5 bionic airfoil fin leading edge concave-convex structure, 6 rectangular longitudinal vortex generator; where h1 is heat exchange Plate height, h2 is the height of the fluid channel, Lh is the horizontal spacing of the fins, Lc is the staggered spacing of the fins, Lz is the longitudinal spacing of the fins, L is the chord length of the fins, and A is the top-to-bottom spacing of the concave-convex structure , h is the height of the rectangular longitudinal vortex generator, L1 is the distance from the front end of the rectangular longitudinal vortex generator to the front end of the fin, L2 is the length of the rectangular longitudinal vortex generator, x is the distance from the top of the fin, Lx is the distance from the fin The chord length of the fin at position x on the top of the fin, H is the height of the fin, α is the angle between the rectangular longitudinal vortex generator and the horizontal direction, K is the width of the fin, and Kx is the width of the fin at position x from the top of the fin .
具体实施方式Detailed ways
下面结合附图与实施例对本发明做进一步说明：Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
为能清楚说明本方案的技术特点，下面通过具体实施方式，并结合其附图，对本发明进行详细阐述。下文的公开提供了许多不同的实施例或例子用来实现本发明的不同结构。为了简化本发明的公开，下文中对特定例子的部件和设置进行描述。此外，本发明可以在不同例子中重复参考数字和/或字母。这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施例和/或设置之间的关系。应当注意，在附图中所图示的部件不一定按比例绘制。本发明省略了对公知组件和处理技术及工艺的描述以避免不必要地限制本发明。In order to clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation modes and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. It should be noted that components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted herein to avoid unnecessarily limiting the present invention.
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientation or position shown in the drawings The positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
如图1所示，本发明实施例提供的一种具有仿生翼型翅片的印刷电路板换热器芯体，包括：多个换热板1及多个仿生翼型翅片4，所述多个仿生翼型翅片4采用仿生鲸鱼鳍设计，分别间隔排列在每个换热板1上，所述多个换热板1相互堆叠，并预留有流体入口与流体出口，形成完整的流体通道，图1中所示结构仅为印刷电路板换热芯体的部分流道单元的展示，在实际应用中，所述换热板层数及仿生翼型翅片数量需要根据实际情况进行设置。As shown in Figure 1, a printed circuit board heat exchanger core with bionic airfoil fins provided by an embodiment of the present invention includes: a plurality of heat exchange plates 1 and a plurality of bionic airfoil fins 4, the Multiple bionic airfoil fins 4 are designed with bionic whale fins, and are arranged at intervals on each heat exchange plate 1. The multiple heat exchange plates 1 are stacked on each other, and fluid inlets and fluid outlets are reserved to form a complete Fluid channel, the structure shown in Figure 1 is only a display of part of the flow channel unit of the heat exchange core of the printed circuit board. set up.
如图2-5所示，所述仿生翼型翅片4为对称结构，翅片宽度K为1～5mm，翅片弦长L为4～20mm，翅片高度H与流体通道高度h2相同。As shown in Figure 2-5, the bionic airfoil fin 4 is a symmetrical structure, the fin width K is 1-5 mm, the fin chord length L is 4-20 mm, and the fin height H is the same as the fluid channel heighth2 .
所述仿生翼型翅片4采用仿生鲸鱼鳍设计，对座头鲸前鳍的结构进行模拟，座头鲸前鳍的前缘上带有特殊凹凸结节结构，与相同大小的平滑鳍状肢相比，起着增升扰动装置的作用，可以控制流过鳍肢的水流，在翅片后缘面保持流体贴附和改善涡流脱落，因此也能够表现出更加优秀的传热性能和气动力学性能。The bionic airfoil fin 4 adopts a bionic whale fin design to simulate the structure of the humpback whale's front fin. The front edge of the humpback whale's front fin has a special concave-convex nodular structure, which is similar to the smooth flipper of the same size. In contrast, it plays the role of a high-lift disturbance device, which can control the flow of water flowing through the fins, maintain fluid attachment and improve vortex shedding on the trailing edge surface of the fins, so it can also exhibit better heat transfer performance and aerodynamic performance .
所述仿生翼型翅片4前缘设置有呈余弦分布的凹凸结构5，相对于传统的光滑平直翼型翅片相比，仿生翼型翅片前缘采用仿生凹凸结构设计，当流体迎面冲击翅片时，流体在前缘凹凸斜面的诱导下产生垂直与主流方向的纵向二次涡流，增强了流体横向湍动，加强了边界层与主流冷热流体之间的能质交混，强化了翅片前缘对流冲击传热能力；同时凹凸结构产生的纵向涡流向翅片下游发展，为边界层持续附着提供能量，形成低压区，在主流高压区与涡流低压区压差的作用下，使翼型表面流体更加贴附，从而延迟减缓了翼型后缘面的绕流分离现象，降低了流动阻力。The leading edge of the bionic airfoil fin 4 is provided with a concave-convex structure 5 in a cosine distribution. Compared with the traditional smooth and straight airfoil fin, the leading edge of the bionic airfoil fin is designed with a bionic concave-convex structure. When impacting the fin, the fluid is induced by the concave-convex slope of the leading edge to generate a vertical secondary vortex in the direction of the mainstream, which enhances the lateral turbulence of the fluid, strengthens the energy-mass mixing between the boundary layer and the mainstream cold and hot fluid, and strengthens the At the same time, the longitudinal vortex generated by the concave-convex structure develops downstream of the fin, providing energy for the continuous attachment of the boundary layer and forming a low-pressure area. Under the action of the pressure difference between the mainstream high-pressure area and the vortex low-pressure area, The fluid on the surface of the airfoil is more attached, thereby delaying and slowing down the separation of the flow around the trailing edge of the airfoil, and reducing the flow resistance.
所述仿生翼型翅片4前缘的余弦凹凸结构5的周期数为2～6，所述余弦凹凸结构的顶底间距A为翅片弦长的1/10～1/6，余弦凹凸结构断面翼型尺寸与顶部端面翼型尺寸成比例，如距离翅片顶部x位置处翼型弦长之比Lx/L等于翼型宽度之比Kx/K。The period number of the cosine concave-convex structure 5 at the leading edge of the bionic airfoil fin 4 is 2 to 6, and the distance A between the top and the bottom of the cosine concave-convex structure is 1/10 to 1/6 of the chord length of the fin, and the cosine concave-convex structure The section airfoil size is proportional to the top end airfoil size, for example, the ratio of airfoil chord length L x/ L at position x from the top of the fin is equal to the ratio of airfoil width Kx /K.
所述仿生翼型翅片1翼面还设置有多个成对的矩形纵向涡发生器6，所述矩形纵向涡发生器6为矩形片状结构，设置在翅片后缘起始位置，当凹凸结构产生的纵向涡流流经翅片最宽处后，翼型后缘面成对布置的矩形纵向涡发生器，可进一步强化二次涡流扰动，增强翅片附近流体与主流体之间的掺混和热交换；同时矩形纵向涡发生器的倾斜布置在翼面下游形成渐缩型通道，使流体在类似于喷管的通道中被加速，在翼型后缘面形成射流冲击，在纵向二次涡流和射流低压区的综合作用下，翼型后缘的流动分离和尾流涡脱落的相干性进一步得到改善，使翼型后缘面边界层传热得到强化，并削弱尾流涡产生的流致噪声，最终实现换热器芯体芯体综合换热性能的提升。The airfoil of the bionic airfoil fin 1 is also provided with a plurality of pairs of rectangular longitudinal vortex generators 6, and the rectangular longitudinal vortex generators 6 are rectangular sheet structures, which are arranged at the starting position of the trailing edge of the fin. After the longitudinal vortex generated by the structure flows through the widest part of the fin, the rectangular longitudinal vortex generators arranged in pairs on the trailing edge of the airfoil can further strengthen the secondary vortex disturbance and enhance the mixing and harmony between the fluid near the fin and the main fluid. Heat exchange; at the same time, the oblique arrangement of the rectangular longitudinal vortex generator forms a tapered channel downstream of the airfoil, so that the fluid is accelerated in a channel similar to a nozzle, and a jet impact is formed on the trailing edge of the airfoil, and the longitudinal secondary vortex The coherence between the flow separation at the trailing edge of the airfoil and the coherence of wake vortex shedding is further improved under the combined effect of the airfoil trailing edge surface boundary layer heat transfer, and the flow-induced flow induced by the wake vortex is weakened. noise, and finally realize the improvement of the comprehensive heat transfer performance of the heat exchanger core.
所述矩形纵向涡发生器6前端与翅片1前端的距离L1为翅片弦长L的1/4～1/3，所述矩形纵向涡发生器6长度L2为0.5～3.5mm，高度h为0.25～1.75mm，厚度为0.1～2mm，与水平方向夹角α为20°～40°。The distance L1 between the front end of the rectangular longitudinal vortex generator 6 and the front end of the fin1 is 1/4-1/3 of the chord length L of the fin, and the length L2 of the rectangular longitudinal vortex generator6 is 0.5-3.5mm, The height h is 0.25-1.75 mm, the thickness is 0.1-2 mm, and the angle α with the horizontal direction is 20°-40°.
所述相邻换热板的仿生翼型翅片朝向及流体通道内的流体流向相反，分别作为冷流体换热板和热流体换热板使用，即若第一层换热板为热流体换热板，第二层换热板翅片朝向及流体通道内的流体流向与第一层相反，为冷流体换热板，第三层仍为热流体换热板。如图1中示例的两层换热板，下层为冷流体换热板，上层为热流体换热板，其上的多个仿生翼型翅片4配合分别形成冷流体通道2和热流体通道3。The direction of the bionic airfoil fins of the adjacent heat exchange plates is opposite to the flow direction of the fluid in the fluid channel, and they are respectively used as cold fluid heat exchange plates and hot fluid heat exchange plates. As for the heat plate, the direction of the fins of the second layer of heat exchange plate and the flow direction of the fluid in the fluid channel are opposite to those of the first layer, which is a heat exchange plate for cold fluid, and the third layer is still a heat exchange plate for hot fluid. As shown in Figure 1, there are two layers of heat exchange plates, the lower layer is a cold fluid heat exchange plate, and the upper layer is a hot fluid heat exchange plate, on which a plurality of bionic airfoil fins 4 cooperate to form cold fluid channels 2 and hot fluid channels respectively 3.
所述换热板1的流体入口设置在仿生翼型翅片4前缘对应方向一侧，流体出口设置在仿生翼型翅片4后缘对应方向一侧，所述仿生翼型翅片4前缘为钝头端，仿生翼型翅片4的后缘为尖头端，流体从流体入口进入，经过流体通道，从流体出口离开，即图1中箭头所指示的方向。The fluid inlet of the heat exchange plate 1 is set on the side corresponding to the leading edge of the bionic airfoil fin 4, the fluid outlet is set on the side corresponding to the trailing edge of the bionic airfoil fin 4, and the front edge of the bionic airfoil fin 4 The edge is a blunt end, and the trailing edge of the bionic airfoil fin 4 is a pointed end. The fluid enters from the fluid inlet, passes through the fluid channel, and leaves from the fluid outlet, which is the direction indicated by the arrow in FIG. 1 .
如图6所示，所述换热板1之间采用扩散焊工艺密封焊接，换热板1高度h1为1～8mm，流体通道2、3高度h2为1～12mm，换热板1高度h1与流体通道2、3高度h2之比范围为1～2。As shown in Figure 6, the heat exchange plates 1 are sealed and welded by diffusion welding process, the height h1 of the heat exchange plate 1 is 1-8 mm, the height h2 of the fluid channels 2 and 3 is 1-12 mm, and the heat exchange plate 1 The ratio of the height h1 to the height h2 of the fluid channels 2 and 3 ranges from 1 to 2.
如图7所示，多个仿生翼型翅片4在换热板1上呈错排设置，每排所述仿生翼型翅片4间距相等。As shown in FIG. 7 , a plurality of bionic airfoil fins 4 are arranged in a staggered row on the heat exchange plate 1 , and the distance between the bionic airfoil fins 4 in each row is equal.
所述仿生翼型翅片4横向间距Lh为翅片宽度K的0.8～4倍，翅片错列间距Lc为翅片弦长L的0.8～2倍，翅片纵向间距Lz为翅片弦长L的1.6～4倍。The horizontal spacing Lh of the bionic airfoil fins 4 is 0.8 to 4 times the width K of the fins, the staggered spacing Lc of the fins is 0.8 to 2 times the chord length L of the fins, and the longitudinal spacing Lz of the fins is 1.6 to 4 times the chord length L.
最后应当说明的是：以上实施例仅用以说明本发明的技术方案而非对其限制，尽管参照上述实施例对本发明进行了详细的说明，所属领域的普通技术人员应当理解：依然可以对本发明的具体实施方式进行修改或者等同替换，而未脱离本发明精神和范围的任何修改或者等同替换，其均应涵盖在本发明的权利要求保护范围之内。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention can still be Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention shall fall within the protection scope of the claims of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310628303.7ACN116697783A (en) | 2023-05-29 | 2023-05-29 | A printed circuit board heat exchanger core with bionic airfoil fins |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310628303.7ACN116697783A (en) | 2023-05-29 | 2023-05-29 | A printed circuit board heat exchanger core with bionic airfoil fins |
| Publication Number | Publication Date |
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| CN116697783Atrue CN116697783A (en) | 2023-09-05 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310628303.7APendingCN116697783A (en) | 2023-05-29 | 2023-05-29 | A printed circuit board heat exchanger core with bionic airfoil fins |
| Country | Link |
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| CN (1) | CN116697783A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118361989A (en)* | 2024-05-21 | 2024-07-19 | 西安热工研究院有限公司 | Compact heat exchanger |
| CN118705914A (en)* | 2024-07-12 | 2024-09-27 | 西安交通大学 | A printed circuit board heat exchanger core using hybrid fins |
| CN119665692A (en)* | 2024-11-29 | 2025-03-21 | 中国航空工业集团公司沈阳飞机设计研究所 | An annular shell and tube heat exchanger with rhombus-shaped fins in the flow channel |
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| US20090294113A1 (en)* | 2008-06-03 | 2009-12-03 | Korea Atomic Energy Research Institute | Heat exchanger |
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| US4984626A (en)* | 1989-11-24 | 1991-01-15 | Carrier Corporation | Embossed vortex generator enhanced plate fin |
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| CN203798232U (en)* | 2014-03-13 | 2014-08-27 | 郑州大学 | Plate-fin heat exchanger core |
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| US20200284530A1 (en)* | 2019-03-08 | 2020-09-10 | Xi'an Jiaotong University | Plate-fin heat exchanger core and fin structure thereof |
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| CN219037719U (en)* | 2022-12-22 | 2023-05-16 | 西安交通大学 | A plate heat exchanger with airfoil fins |
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118361989A (en)* | 2024-05-21 | 2024-07-19 | 西安热工研究院有限公司 | Compact heat exchanger |
| CN118705914A (en)* | 2024-07-12 | 2024-09-27 | 西安交通大学 | A printed circuit board heat exchanger core using hybrid fins |
| CN119665692A (en)* | 2024-11-29 | 2025-03-21 | 中国航空工业集团公司沈阳飞机设计研究所 | An annular shell and tube heat exchanger with rhombus-shaped fins in the flow channel |
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