CN108827057A - A kind of plate heat exchanger composite corrugated plate card piece of novel fishbone - Google Patents
A kind of plate heat exchanger composite corrugated plate card piece of novel fishbone Download PDFInfo
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- CN108827057A CN108827057A CN201810406166.1A CN201810406166A CN108827057A CN 108827057 A CN108827057 A CN 108827057A CN 201810406166 A CN201810406166 A CN 201810406166A CN 108827057 A CN108827057 A CN 108827057A
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- 239000002131 composite material Substances 0.000 title claims abstract description 8
- 239000012530 fluid Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 9
- 238000009826 distribution Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009991 scouring Methods 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
- 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
- F28F3/044—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 pontual, e.g. dimples
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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
- F28F3/048—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 ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
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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
本发明提供了一种新型鱼骨形的板式换热器复合波纹板片，包括板片主体，板片主体上设置角孔、导流区、分流区、换热区，沿换热区换热介质流动方向的轴线两侧设置波纹，同侧波纹与换热区轴线之间设置一夹角，同侧相邻波纹之间设置平面波谷，异侧波纹沿换热区轴线左右交错排列，波纹面对换热介质流向的一面设置凹槽状的前小波纹，波纹另一面设置凸起状的后小波纹，前小波纹和后小波纹形状相同。
The invention provides a novel herringbone-shaped plate heat exchanger composite corrugated plate, which includes a main body of the plate, on which corner holes, diversion areas, diversion areas, and heat exchange areas are arranged, and heat is exchanged along the heat exchange area. Corrugations are set on both sides of the axis of the medium flow direction, an angle is set between the corrugations on the same side and the axis of the heat exchange zone, plane troughs are set between adjacent corrugations on the same side, and corrugations on different sides are arranged staggered left and right along the axis of the heat exchange zone. A groove-shaped front small corrugation is provided on one side of the flow direction of the heat exchange medium, and a raised rear small corrugation is provided on the other side of the corrugation, and the front small corrugation and the rear small corrugation have the same shape.
Description
技术领域technical field
本发明涉及一种换热器板片技术，特别是一种新型鱼骨形的板式换热器复合波纹板片。The invention relates to a heat exchanger plate technology, in particular to a novel herringbone-shaped plate heat exchanger composite corrugated plate.
背景技术Background technique
板式换热器与管壳式换热器相比具有传热系数高、对数平均温差大、末端温差小、占地面积小、重量轻、价格低、制作方便、容易清洗、热损失小、不易结垢等优点。板式换热器板片是板式换热器最重要的部件，板片的设计直接影响到整个板式换热器的换热效果。Compared with shell and tube heat exchangers, plate heat exchangers have high heat transfer coefficient, large logarithmic average temperature difference, small end temperature difference, small footprint, light weight, low price, convenient production, easy cleaning, and small heat loss. Not easy to scale and other advantages. Plate heat exchanger The plate is the most important part of the plate heat exchanger, and the design of the plate directly affects the heat exchange effect of the entire plate heat exchanger.
板式换热器板片是影响板式换热器性能的主要部件。目前，板式换热器的板片的波纹形状众多：人字形波纹、平直波纹、梯型平直波纹、曲折形波纹等。这些板片换热区波纹形状各不相同，但是都未考虑到如何使得板片上的流体分布均匀的问题，这对换热效果有较大的影响。本发明的鱼骨形的板式换热器板片正是为了解决这个问题。Plate heat exchanger plates are the main components that affect the performance of plate heat exchangers. At present, there are many corrugated shapes of plates of plate heat exchangers: herringbone corrugated, straight corrugated, trapezoidal straight corrugated, zigzag corrugated, etc. The shapes of the corrugations in the heat exchange areas of these plates are different, but none of them take into account the problem of how to make the fluid on the plates evenly distributed, which has a great impact on the heat exchange effect. The herringbone plate heat exchanger plate of the present invention is just to solve this problem.
发明内容Contents of the invention
本发明要解决的技术问题是提供一种流体分布更加均匀，换热效果更佳的板式换热器板片结构。The technical problem to be solved by the present invention is to provide a plate structure of a plate heat exchanger with more uniform fluid distribution and better heat exchange effect.
实现本发明目的的技术方案为：一种新型鱼骨形的板式换热器复合波纹板片，包括板片主体，板片主体上设置角孔、导流区、分流区、换热区，沿换热区换热介质流动方向的轴线两侧设置波纹，同侧波纹与换热区轴线之间设置一夹角，同侧相邻波纹之间设置平面波谷，异侧波纹沿换热区轴线左右交错排列，波纹面对换热介质流向的一面设置凹槽状的前小波纹，波纹另一面设置凸起状的后小波纹，前小波纹和后小波纹形状相同。The technical solution to realize the purpose of the present invention is: a new herringbone-shaped plate heat exchanger composite corrugated plate, including a main body of the plate, on which corner holes, flow diversion areas, diversion areas, and heat exchange areas are arranged. Corrugations are set on both sides of the axis of the flow direction of the heat exchange medium in the heat exchange area, an angle is set between the same side corrugations and the axis of the heat exchange area, plane troughs are set between adjacent corrugations on the same side, and corrugations on different sides are along the axis of the heat exchange area. Arranged in a staggered manner, groove-shaped front small corrugations are provided on the side facing the flow direction of the heat exchange medium, and convex-shaped rear small corrugations are provided on the other side of the corrugations. The front and rear small corrugations have the same shape.
采用上述换热器板片，波纹与波谷的宽度相等，且同侧波纹端部底面两端与异侧相应波谷两边缘处重合。With the above-mentioned heat exchanger plate, the widths of the corrugations and the troughs are equal, and the two ends of the bottom surface of the corrugation end on the same side coincide with the two edges of the corresponding troughs on the opposite side.
采用上述换热器板片，波纹宽度小于波谷宽度，且同侧波纹端部底面两端位于异侧相应波谷两边缘处之间。With the above-mentioned heat exchanger plate, the width of the corrugation is smaller than the width of the trough, and the two ends of the bottom surface of the end of the corrugation on the same side are located between the two edges of the corresponding trough on the opposite side.
采用上述换热器板片，波纹轴线与换热区轴线的夹角为45°～60°。With the above heat exchanger plates, the included angle between the corrugation axis and the axis of the heat exchange zone is 45° to 60°.
采用上述换热器板片，人字形波纹的倾角与小波纹的倾角一致。With the above-mentioned heat exchanger plate, the inclination angle of the herringbone corrugation is consistent with the inclination angle of the small corrugation.
采用上述换热器板片，人字形波纹和小波纹的倾角为40°～60°。Using the above-mentioned heat exchanger plates, the inclination angles of the herringbone corrugations and the small corrugations are 40°-60°.
采用上述换热器板片，各个小波纹的波高一样，小波纹的波高为大波纹波高的1/6～2/3。With the above heat exchanger plates, the wave heights of the small corrugations are the same, and the wave height of the small corrugations is 1/6-2/3 of the wave height of the large corrugations.
本发明在大波纹的波峰两侧设置凸起和凹槽，面向来流方向的大波纹一侧设置凹槽，背向来流方向的大波纹一侧设置凸起。凹槽的设计使流体在流动过程中增加扰动，流体流经凹槽时产生湍流，甚至有小量的回流，这样使得流体换热更加彻底。这种在主流不变的情况下的小规模的湍动加强了流体的换热能力，板片整体的换热能力得到二次加强。凹槽和凸起的位置不能颠倒。若面向来流方向的大波纹一侧设置凸起，虽然可以起到一定绕流作用，但阻力的增加显然更多；背向来流方向的大波纹一侧设置凹槽，二次强化效果会削弱很多。凹槽和凸起的设置强化了传热效果，使板式换热器的综合性能得到进一步提高。In the present invention, protrusions and grooves are arranged on both sides of the crests of the large corrugations, grooves are provided on the side of the large corrugations facing the direction of incoming flow, and protrusions are provided on the side of the large corrugations facing away from the direction of incoming flow. The design of the groove increases the turbulence of the fluid in the process of flow. When the fluid flows through the groove, it generates turbulence and even a small amount of backflow, which makes the heat exchange of the fluid more thorough. This small-scale turbulence under the condition that the main flow remains unchanged enhances the heat transfer capacity of the fluid, and the overall heat transfer capacity of the plates is enhanced twice. The positions of grooves and protrusions cannot be reversed. If the side of the large corrugation facing the direction of incoming flow is provided with protrusions, although it can play a certain role in circumventing the flow, the increase in resistance is obviously more; if the side of the large corrugation facing away from the direction of incoming flow is provided with grooves, the secondary strengthening effect will be weakened a lot of. The arrangement of grooves and protrusions strengthens the heat transfer effect and further improves the comprehensive performance of the plate heat exchanger.
下面结合说明书附图对本发明作进一步描述。The present invention will be further described below in conjunction with the accompanying drawings.
附图说明Description of drawings
图1是本发明新型鱼骨形板式换热器板片的平面示意图。Fig. 1 is a schematic plan view of the plates of the novel herringbone plate heat exchanger of the present invention.
图2是传统人字形板片的波纹示意图。Fig. 2 is a schematic diagram of the corrugation of a traditional herringbone plate.
图3是本发明新型人字形板片复合波纹的结构示意图。Fig. 3 is a structural schematic diagram of the composite corrugation of the novel herringbone plate of the present invention.
具体实施方式Detailed ways
结合图1、图3，一种鱼骨形的新型板式换热器板片，包括板片主体，板片主体上设置定位孔1、角孔2、导流区3、分流区4、换热区5。定位孔1位于板片主体的两端起到定位的作用。角孔2有四个分别位于板片主体的四个角上，换热介质从角孔2处流经。导流区3将换热介质引导至分流区4。分流区4将换热介质分流至换热区5不同的区域。换热区5上沿换热介质流向设置波纹11。Combined with Figure 1 and Figure 3, a new fishbone-shaped plate heat exchanger plate, including a plate body, the plate body is provided with a positioning hole 1, a corner hole 2, a diversion area 3, a diversion area 4, and a heat exchange area 5. The positioning holes 1 are located at both ends of the main body of the sheet for positioning. There are four corner holes 2 respectively located on the four corners of the plate main body, and the heat exchange medium flows through the corner holes 2 . The flow guide area 3 guides the heat exchange medium to the flow distribution area 4 . The split area 4 splits the heat exchange medium to different areas of the heat exchange area 5 . Corrugations 11 are arranged on the heat exchange area 5 along the flow direction of the heat exchange medium.
当换热介质通过角孔2流入板片，经过导流区3和分流区4，流入换热区5，在设置有波纹的板片上即换热区5上进行热量交换。换热之后的流体流向另一侧的角孔处，汇合流入下一组板片。同时另一种流体在板片的另一侧以相反的方向流动并进行换热，经过换热后的流体流到下一组板片。When the heat exchange medium flows into the plate through the corner hole 2, passes through the diversion area 3 and the diversion area 4, and flows into the heat exchange area 5, where heat exchange is performed on the corrugated plate, that is, the heat exchange area 5. The fluid after heat exchange flows to the corner hole on the other side, and then flows into the next set of plates. At the same time, another fluid flows in the opposite direction on the other side of the plate and performs heat exchange, and the fluid after heat exchange flows to the next set of plates.
沿换热区5换热介质流动方向的轴线两侧设置波纹7，同侧波纹7与换热区5轴线之间设置一夹角，同侧相邻波纹7之间设置平面波谷6，异侧波纹7沿换热区5轴线左右交错排列。Corrugations 7 are arranged on both sides of the axis of the flow direction of the heat exchange medium in the heat exchange zone 5, an included angle is set between the corrugations 7 on the same side and the axis of the heat exchange zone 5, a plane trough 6 is set between adjacent corrugations 7 on the same side, and The corrugations 7 are arranged staggered left and right along the axis of the heat exchange zone 5 .
波纹7与波谷6的宽度相等，且同侧波纹7端部底面两端与异侧相应波谷6两边缘处重合；或波纹7宽度小于波谷6宽度，且同侧波纹7端部底面两端位于异侧相应波谷6两边缘处之间。The width of the corrugation 7 is equal to that of the trough 6, and the two ends of the bottom surface of the end of the corrugation 7 on the same side coincide with the two edges of the corresponding trough 6 on the opposite side; The corresponding trough 6 on the opposite side is between the two edges.
波纹轴线与换热区5轴线的夹角为45°～60°。夹角不宜过大或过小，夹角过大使得大部分流体直接冲击波纹的前斜波面，而沿着波面流动的则较少；夹角过小，与其相反，此两种情况均不能很好地分散流体。The included angle between the corrugation axis and the axis of the heat exchange zone 5 is 45°-60°. The included angle should not be too large or too small. If the included angle is too large, most of the fluid will directly impact the front oblique wave surface of the corrugation, while less fluid flows along the wave surface; if the included angle is too small, on the contrary, neither of these two cases can Disperses fluids well.
本发明的鱼骨形的波纹交错排列，具有增强流体在流道中的扰动，在流动方向上产生二次流，产生二次漩涡，二次漩涡的产生强化了传热；交错排列波纹使得流体能够交错的流动，同时具有减小流动阻力的作用，使得流体在换热区的流量分布更加地均匀，优化了板式换热器的综合性能。The fishbone-shaped corrugations of the present invention are arranged in a staggered manner, which can enhance the disturbance of the fluid in the flow channel, generate secondary flow in the flow direction, and generate a secondary vortex. The generation of the secondary vortex strengthens heat transfer; the staggered arrangement of corrugations enables the fluid to The staggered flow also has the effect of reducing flow resistance, making the flow distribution of the fluid in the heat exchange area more uniform, and optimizing the overall performance of the plate heat exchanger.
波纹8面对换热介质流向的一面设置凹槽状的前小波纹6，波纹8另一面设置凸起状的后小波纹7，前小波纹6和后小波纹7形状相同。波纹8的倾角与小波纹的倾角一致。各个小波纹的波高一样，小波纹的波高为大波纹波高的六分之一至三分之二，大波纹和小波纹的波纹倾角一致，均为40°～60°。小波纹的波高主要依据大波纹的波高来设置，波纹倾角不宜过大或过小，过大会增加流动的阻力，过小则没有明显的强化效果。The side of the corrugation 8 facing the flow direction of the heat exchange medium is provided with a groove-shaped front small corrugation 6, and the other side of the corrugation 8 is provided with a raised rear small corrugation 7, and the front small corrugation 6 and the rear small corrugation 7 have the same shape. The inclination angle of the corrugation 8 is consistent with the inclination angle of the small corrugations. The wave height of each small corrugation is the same, and the wave height of the small corrugation is 1/6 to 2/3 of the wave height of the large corrugation. The wave height of the small corrugation is mainly set according to the wave height of the large corrugation. The corrugation inclination should not be too large or too small. If it is too large, it will increase the resistance of the flow. If it is too small, there will be no obvious strengthening effect.
上述板片的波纹为大小波纹复合结构，在大波纹上增加前后两个相同的小波纹，大小波纹的存在使得换热介质的流动方向受到阻挡，流体对板片产生强烈的冲刷作用，介质流动方向改变并加速运动，在流动方向上产生二次流，使得介质在大小波纹处产生了强烈的运动，生成二次漩涡，二次漩涡的产生强化了传热。同时，大波纹与小波纹组成的复合波纹也能减小流体流动时对板片的正面强烈冲刷，避免较大漩涡的产生，以及局部流速的急剧增加，从而有效降低流动阻力。大小波纹的存在也增加了换热面积，强化了传热，使得在相同的体积空间下能达到更高的传热效果。The corrugation of the above-mentioned plates is a composite structure of large and small corrugations, and two small corrugations before and after are added to the large corrugations. The existence of large and small corrugations blocks the flow direction of the heat exchange medium, and the fluid has a strong scouring effect on the plates, and the medium flows The direction changes and accelerates the movement, generating a secondary flow in the flow direction, which makes the medium move strongly at the large and small corrugations, generating a secondary vortex, which enhances heat transfer. At the same time, the composite corrugations composed of large corrugations and small corrugations can also reduce the strong erosion of the front of the plate when the fluid flows, avoid the generation of large eddies, and the sharp increase of local flow velocity, thereby effectively reducing the flow resistance. The presence of large and small corrugations also increases the heat transfer area and enhances heat transfer, making it possible to achieve a higher heat transfer effect in the same volume space.
所述换热区鱼骨形的新型板式换热器板片结构，波纹的横截面为三角形，梯形，半圆形或椭圆形中的一种。换热器装配时，完全相同的板片旋转180°完全压合即可。The plate heat exchanger plate structure of the new fishbone shape in the heat exchange area, the cross section of the corrugation is one of triangle, trapezoid, semicircle or ellipse. When the heat exchanger is assembled, the identical plates can be rotated 180° and pressed together completely.
Claims (8)
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| CN110006276A (en) * | 2019-05-06 | 2019-07-12 | 南通文鼎换热设备科技有限公司 | A convex variable cross-section fluid channel heat exchange fin of a plate heat exchanger |
| CN110645818A (en) * | 2019-10-31 | 2020-01-03 | 江苏唯益换热器有限公司 | A new type of brazed heat exchange plate group |
| CN110749215A (en) * | 2019-12-06 | 2020-02-04 | 江苏唯益换热器有限公司 | Multi-stage flow-dividing brazing heat exchanger plate set |
| CN113272613A (en) * | 2019-01-04 | 2021-08-17 | 赛瑟斯波公司 | Heat exchange area of plate type heat exchanger heating plate |
| CN113758361A (en) * | 2021-09-30 | 2021-12-07 | 江苏航运职业技术学院 | An asymmetric structure plate heat exchange fin |
| CN115790216A (en) * | 2022-10-26 | 2023-03-14 | 杭州迈科瑞科技有限公司 | Primary surface heat exchanger and use method thereof |
| CN116583708A (en) * | 2020-12-15 | 2023-08-11 | 阿法拉伐股份有限公司 | heat transfer plate |
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| CN110006276A (en) * | 2019-05-06 | 2019-07-12 | 南通文鼎换热设备科技有限公司 | A convex variable cross-section fluid channel heat exchange fin of a plate heat exchanger |
| CN110645818A (en) * | 2019-10-31 | 2020-01-03 | 江苏唯益换热器有限公司 | A new type of brazed heat exchange plate group |
| CN110749215A (en) * | 2019-12-06 | 2020-02-04 | 江苏唯益换热器有限公司 | Multi-stage flow-dividing brazing heat exchanger plate set |
| CN116583708A (en) * | 2020-12-15 | 2023-08-11 | 阿法拉伐股份有限公司 | heat transfer plate |
| US11946707B2 (en) | 2020-12-15 | 2024-04-02 | Alfa Laval Corporate Ab | Heat transfer plate with upper distribution ridges having corners of different curvature radius |
| CN116583708B (en) * | 2020-12-15 | 2024-06-11 | 阿法拉伐股份有限公司 | Heat transfer plate |
| CN113758361A (en) * | 2021-09-30 | 2021-12-07 | 江苏航运职业技术学院 | An asymmetric structure plate heat exchange fin |
| CN113758361B (en) * | 2021-09-30 | 2025-03-28 | 江苏航运职业技术学院 | Asymmetric plate heat exchanger |
| CN115790216A (en) * | 2022-10-26 | 2023-03-14 | 杭州迈科瑞科技有限公司 | Primary surface heat exchanger and use method thereof |
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Application publication date: 20181116 |