CN112304126B - A multi-strand medium distribution structure suitable for micro-channel plate heat exchange equipment - Google Patents
A multi-strand medium distribution structure suitable for micro-channel plate heat exchange equipment Download PDFInfo
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- CN112304126B CN112304126B CN202010980621.6A CN202010980621A CN112304126B CN 112304126 B CN112304126 B CN 112304126B CN 202010980621 A CN202010980621 A CN 202010980621A CN 112304126 B CN112304126 B CN 112304126B
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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
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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
- 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
- F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
- F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
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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
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
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Abstract
Description
技术领域technical field
本发明属于微通道换热领域,具体涉及一种适用于微型通道板式换热设备的多股介质分配结构。The invention belongs to the field of microchannel heat exchange, and in particular relates to a multi-strand medium distribution structure suitable for microchannel plate heat exchange equipment.
技术背景technical background
能源、化工、环保、医药等领域所采用的换热或反应设备对设备紧凑性和高效性提出了越来越高的要求,传统的换热设备或反应设备是基于两股介质的能量输运原理进行整体设计。随着各种新流程和工艺的开发,利用一台集成式设备实现更多流体之间的热量交换成为提高系统和装置紧凑性的有效方案。The heat exchange or reaction equipment used in the fields of energy, chemical industry, environmental protection, medicine, etc. has put forward higher and higher requirements for the compactness and efficiency of the equipment. The traditional heat exchange equipment or reaction equipment is based on the energy transport of two media Principles for overall design. With the development of various new processes and processes, using an integrated device to exchange heat between more fluids has become an effective solution to improve the compactness of systems and devices.
缠绕管式换热器是一类良好多股介质换热设备类型。这类换热器相对传统列管式换热器具有显著的优势,主要体现在:紧密缠绕的换热管束极大提高了换热器壳程空间紧凑度,不使用折流板避免了壳程介质流动的死区,螺旋形换热管有效强化了管内介质的传热和提高了对大温差换热工况的适应性水平,特别是利用缠绕式换热管的层分布技术可以实现若干管侧介质的同时换热。但这类设备无法很好满足海洋、核电、微反应等领域进一步的紧凑性要求,阻碍了其应用延伸。Spiral tube heat exchanger is a good type of multi-strand medium heat exchange equipment. This type of heat exchanger has significant advantages over traditional tube-and-tube heat exchangers, which are mainly reflected in: the tightly wound heat exchange tube bundle greatly improves the space compactness of the shell side of the heat exchanger, and the absence of baffles avoids the The dead zone of the medium flow, the spiral heat exchange tube effectively strengthens the heat transfer of the medium in the tube and improves the adaptability to the large temperature difference heat transfer condition, especially the use of the layer distribution technology of the wound heat exchange tube can realize several tubes side media at the same time heat exchange. However, this type of equipment cannot well meet the further compactness requirements in the fields of marine, nuclear power, and micro-reaction, which hinders its application extension.
带有微小通道的板式换热器作为一种高效的换热设备,其应用场景相对缠绕管式换热器是一个补充。专利CN108955316A公开了一种多股流印刷电路板式换热器,包括换热芯体以及与换热芯体相连的冷流体进口、冷流体出口、热流体进口、热流体出口,但该发明的换热芯体的板片通道布置需要进行专门设计和制造,不能直接在现有的换热芯体上使用,造成资源浪费,使得使用成本提高。As an efficient heat exchange device, the plate heat exchanger with tiny channels is a supplement to the wound tube heat exchanger in its application scenarios. Patent CN108955316A discloses a multi-stream printed circuit board heat exchanger, including a heat exchange core and a cold fluid inlet, a cold fluid outlet, a hot fluid inlet, and a hot fluid outlet connected to the heat exchange core. The plate channel layout of the heat core body needs to be specially designed and manufactured, and cannot be directly used on the existing heat exchange core body, resulting in waste of resources and increased use costs.
发明内容Contents of the invention
本发明是为了解决上述问题,提供一种适用于微型通道板式换热设备的多股介质分配结构。The purpose of the present invention is to solve the above problems and provide a multi-strand medium distribution structure suitable for micro-channel plate heat exchange equipment.
本发明采用了以下技术方案:The present invention adopts following technical scheme:
一种适用于微型通道板式换热设备的多股介质分配结构,该结构设于板式换热芯体介质进出口A、介质进出口B的两端,其特征在于,包括端盖、槽道和介质管箱,板式换热芯体的每个介质通道层的出口和入口处分别对应连接至少一个槽道,且每个槽道与对应的介质通道层所包含的对应的介质通道连通并构成封闭连接,同一介质通道层的出口、入口连接的槽道数量相同,所述端盖分别设于所述板式换热芯体的介质进出口A、介质进出口B端部,并罩盖所述槽道,所述端盖、槽道与板式换热芯体间彼此连接形成一体式结构;A multi-strand medium distribution structure suitable for micro-channel plate heat exchange equipment, the structure is located at both ends of the medium inlet and outlet A of the plate heat exchange core and the medium inlet and outlet B, and is characterized in that it includes an end cover, a channel and The medium pipe box, the outlet and the entrance of each medium channel layer of the plate heat exchange core are respectively connected to at least one channel, and each channel communicates with the corresponding medium channel contained in the corresponding medium channel layer and forms a closed The number of channels connected to the outlet and inlet of the same medium channel layer is the same, and the end covers are respectively arranged at the ends of the medium inlet and outlet A and the medium inlet and outlet B of the plate heat exchange core, and cover the grooves Road, the end cover, the channel and the plate heat exchange core are connected to each other to form an integrated structure;
所述端盖上设置有槽道通孔,所述槽道通孔远离板式换热芯体的一侧连接介质管箱;每个所述槽道根据对应的介质通道中的介质种类,通过所述槽道通孔与容纳对应介质种类的介质管箱连通。The end cover is provided with channel through holes, and the side of the channel through holes away from the plate heat exchange core is connected to the medium pipe box; each channel passes through the medium type according to the medium type in the corresponding medium channel. The channel through hole communicates with a medium pipe box containing a corresponding type of medium.
优选的,每个所述槽道仅对应连接一种介质,连接同一种介质的所有槽道为一组,同组槽道在板式换热芯体的介质进出口A、介质进出口B端部分别连接一个介质管箱。Preferably, each of the channels is only connected to one medium, and all the channels connected to the same medium form a group, and the channels of the same group are at the ends of the medium inlet and outlet A and the medium inlet and outlet B of the plate heat exchange core. Connect a media tube box respectively.
优选的,所述槽道为扁平矩形结构,槽道内部中空设置使与该槽道对应连接的介质通道层中的所有介质通道彼此连通,槽道的厚度与板式换热芯体的介质通道层厚度相适配,所述槽道在板式换热芯体的介质进出口A、介质进出口B两端分别形成上下排布的多层结构。Preferably, the channel is a flat rectangular structure, and the interior of the channel is hollow so that all the medium channels in the medium channel layer correspondingly connected to the channel communicate with each other, and the thickness of the channel is the same as that of the medium channel layer of the plate heat exchange core. The thicknesses are matched, and the channels form a multilayer structure arranged up and down at both ends of the medium inlet and outlet A and the medium inlet and outlet B of the plate heat exchange core.
优选的,同一介质通道层的出口、入口分别对应连接至少一个槽道形成同层槽道,每层槽道沿所述槽道宽度方向的两端与所在介质通道层上的介质通道的位置相适配,当槽道为多个时,同层槽道在沿所述槽道宽度方向并列设置;所述槽道宽度指沿介质通道层上的介质通道排列方向的宽度。Preferably, the outlet and the inlet of the same medium channel layer are respectively connected to at least one channel to form the same layer of channels, and the two ends of each layer of channel along the width direction of the channel are aligned with the position of the medium channel on the medium channel layer. Adaptation, when there are multiple channels, the channels of the same layer are arranged side by side along the channel width direction; the channel width refers to the width along the arrangement direction of the medium channels on the medium channel layer.
优选的,所述每个槽道与槽道通孔均通过延伸槽道连接,所述延伸槽道厚度与所连接的槽道厚度一致,宽度小于所连接槽道的宽度以使得介质集中。Preferably, each of the channels is connected to the channel through hole through an extension channel, the thickness of the extension channel is consistent with the thickness of the connected channel, and the width is smaller than the width of the connected channel to make the medium concentrated.
优选的,所述介质管箱为半圆柱状,且所述介质管箱的上下端在端盖上不超出所述端盖的上下端。Preferably, the medium pipe box is semi-cylindrical, and the upper and lower ends of the medium pipe box do not exceed the upper and lower ends of the end cover on the end cover.
优选的,所述介质管箱还设置有接管,所述接管垂直于介质管箱的轴线并设置在所述介质管箱圆弧面的中心位置。Preferably, the medium pipe box is further provided with a connecting pipe, and the connecting pipe is perpendicular to the axis of the medium pipe box and arranged at the center of the arc surface of the medium pipe box.
优选的,所述介质管箱与板式换热芯体、槽道和端盖形成一体式结构。Preferably, the medium pipe box forms an integrated structure with the plate heat exchange core, the channel and the end cover.
优选的,所述板式换热芯体、端盖、槽道和介质管箱之间通过扩散焊、钎焊连接;或通过3D打印形成一体式结构。Preferably, the plate heat exchange core, the end cover, the channel and the medium pipe box are connected by diffusion welding or brazing; or form an integrated structure by 3D printing.
本发明的有益效果在于:The beneficial effects of the present invention are:
1)本发明对带有微通道板片结构换热芯体进行多股流分配改造,可以实现多股冷热流体的同时换热,进一步提高换热芯体的紧凑性和传热效率,能够满足更高的流程集成需求,优化工艺性能。1) The present invention transforms the multi-flow distribution of the heat exchange core with a microchannel plate structure, which can realize the simultaneous heat exchange of multiple cold and hot fluids, further improves the compactness and heat transfer efficiency of the heat exchange core, and can Meet higher process integration requirements and optimize process performance.
2)本发明利用端盖和槽道进行多股流介质的分配,可以直接应用在现有换热板片工艺的基础上,不需要再额外进行换热芯体板片通道布置设计,也不需要对现有换热板片的设计、制造工艺和热力设计进行额外的改造和修正,体现了更好的适应性,使用方便,同时利用现有换热板片工艺也可以节省资源,避免浪费。2) The present invention uses end caps and channels to distribute multi-stream media, which can be directly applied on the basis of the existing heat exchange plate technology, without the need for additional heat exchange core plate channel layout design, nor It is necessary to make additional modifications and corrections to the design, manufacturing process and thermal design of the existing heat exchange plate, which reflects better adaptability and is easy to use. At the same time, the use of the existing heat exchange plate process can also save resources and avoid waste .
附图说明Description of drawings
图1为现有板式换热芯体的结构示意图;Fig. 1 is a structural schematic diagram of an existing plate heat exchange core;
图2为本发明结构示意图;Fig. 2 is a structural representation of the present invention;
图3为本发明槽道的设置示意图;Fig. 3 is the arrangement schematic diagram of channel of the present invention;
图4为本发明端盖和槽道结合的结构示意图;Fig. 4 is a schematic structural view of the combination of the end cap and the channel of the present invention;
图5A、图5B为本发明槽道与介质管箱的连接平面示意图;Figure 5A and Figure 5B are schematic diagrams of the connection plane between the channel and the medium pipe box of the present invention;
图6为本发明介质管箱与接管在端盖上的布置示意图;Fig. 6 is a schematic diagram of the arrangement of the medium pipe box and the connecting pipe on the end cover of the present invention;
图1-5中不同的箭头代表不同种介质的出入示意。The different arrows in Figure 1-5 represent the access and exit of different media.
图中标注符号的含义如下:The meanings of the marked symbols in the figure are as follows:
10-板式换热芯体 11-介质通道层 111-介质通道 20-端盖10-plate heat exchange core 11-medium channel layer 111-medium channel 20-end cover
21-槽道通孔 30-槽道 31-延伸槽道 40-介质管箱 50-接管21-channel through hole 30-channel 31-extended channel 40-medium pipe box 50-connector
具体实施方式Detailed ways
下面结合实施例对本发明的技术方案做出更为具体的说明:Below in conjunction with embodiment technical scheme of the present invention is made more specific description:
如图1所示,板式换热芯体10为现有技术中常见的板式换热设备,具有介质进出口A、介质进出口B两个端部,板式换热芯体10内部由多个介质通道层11堆叠连接形成换热结构,每个介质通道层11具有若干个介质通道111。介质通道层11进口、介质通道层11出口根据对应的介质流动方向确定,并不唯一。As shown in Fig. 1, the plate
如图2-6所示,一种适用于微型通道板式换热设备的多股介质分配结构,该结构设于板式换热芯体10介质进出口A、介质进出口B两端且在两端的设置形式形同。包括端盖20、槽道30、介质管箱40和接管50,板式换热芯体10的每个介质通道层11出口、介质通道层11入口分别对应连接至少一个槽道30,且每个槽道30与对应的介质通道层11部分中包含的介质通道111构成封闭连接。As shown in Figure 2-6, a multi-strand medium distribution structure suitable for micro-channel plate heat exchange equipment is provided at the two ends of the medium inlet and outlet A and the medium inlet and outlet B of the plate
槽道30为扁平矩形结构,槽道内部中空设置使对应连接的介质通道层11中的所有介质通道111彼此连通,槽道30的厚度与板式换热芯体10的介质通道层11厚度相适配,槽道30在板式换热芯体10的介质进出口A、介质进出口B两端分别形成上下排布或堆叠的多层结构。每层槽道30沿槽道30宽度方向的左右端均对齐设置在同一垂直面上,槽道30宽度指槽道30垂直于板式换热芯体10介质通道层11水流方向的宽度。The
每个介质通道层11出口、介质通道层11入口分别对应连接的槽道30各为同层槽道30,每层槽道30沿槽道30宽度方向的两端与所在介质通道层11上的介质通道111的位置相适配,当同一介质通道层11的出口、入口对应连接的槽道30为多个时,槽道30在沿槽道30宽度方向并列设置,并调节单个槽道30宽度使该层槽道30的总宽度不变。Each
端盖20分别设于板式换热芯体10的介质进出口A、介质进出口B两端,与板式换热芯体10形成一体结构;端盖20上设置有槽道通孔21,槽道通孔21远离板式换热芯体10的一侧连接介质管箱4。The
槽道30根据板式换热芯体10的介质种类数量分组设置,每个槽道30仅对应连接一种介质,连接同一介质的所有槽道30为一组,同组槽道30通过延伸槽道31与槽道通孔21连接并接入同一个介质管箱40。延伸槽道31的厚度与所连接的槽道30厚度一致,宽度小于所连接槽道30的宽度以使得介质集中。The
介质管箱40为半圆柱状,且介质管箱40的上下端在端盖20上不超出端盖20的上下端;介质管箱40设置有接管50,接管50垂直于介质管40轴线并设置在介质管箱40圆弧面的中心位置,接管50形成单种介质的总进出管道。The
介质管箱40与板式换热芯体10、槽道30和端盖20也可以形成一体结构,板式换热芯体10、端盖20、槽道30和介质管箱40之间通过扩散焊、钎焊进行连接形成一体式结构,或通过3D打印形成一体式结构。The
当使用扩散焊连接时,端盖20使用扩散焊接性能良好,并与板式换热芯体10具有良好连接性能的金属材料或非金属材料,可通过将端盖20与换热芯体10的连接处进行满足精度要求的扩散焊连接,从而组成完整的一体式换热设备。When using diffusion welding connection, the
本实施例中,共三股介质参与换热,分别为1股热介质和2股冷介质,热介质与冷介质在板式换热芯体10中逐层交错叠设且换热的对流方向相反,其中冷介质层包括并排设置的2个槽道30以分隔2股冷介质,每个冷介质层槽道30的宽度为热介质层槽道30宽度的1/2,端盖20外侧接三个介质管箱40分别对应3股介质。In this embodiment, a total of three strands of media participate in heat exchange, namely one strand of heat medium and two strands of cold medium. The heat medium and the cool medium are stacked layer by layer in the plate
工作时,热介质自板式换热芯体10的介质进出口B端设置的接管50流入介质管箱40,在介质管箱40中通过槽道通孔21和延伸槽道31进入对应的多个不同层槽道30,由于槽道30容纳空间较延伸槽道31大,介质在槽道30中得到缓冲;介质由槽道30进入对应的介质通道层11,介质进入介质通道层11的一端称为介质通道层11的入口,即本实施例中,热介质的介质通道层11入口在板式换热芯体10的B端;同样的,2股冷介质分别自板式换热芯体10的介质进出口A端设置的接管50流入对应的介质管箱40,在介质管箱40中通过槽道通孔21和延伸槽道31进入对应的多个槽道30并进入介质通道层11,冷介质的介质通道层11入口在板式换热芯体10的A端。冷、热介质分别通过板式换热芯体10,在板式换热芯体10的介质通道层11内流动并进行热交换。When working, the heat medium flows into the
热交换后,热介质自板式换热芯体10的介质进出口A端流出至槽道30,热介质通过延伸槽道31和槽道通孔21汇合流入对应的介质管箱40,并自接管50流出,2股冷介质自板式换热芯体10的介质进出口B端流出至槽道30,通过延伸槽道31和槽道通孔21汇合流入对应的介质管箱40,并自接管50流出。本实施例中,热介质的介质通道层11入口在板式换热芯体10的A端,冷介质的介质通道层11入口在板式换热芯体10的B端。After the heat exchange, the heat medium flows out from the medium inlet and outlet A end of the plate
以上实施方式仅用以说明本发明的技术方案,而并非对本发明的限制;尽管参照前述实施方式对本发明进行了详细的说明,本领域的普通技术人员应当理解:凡在本发明创造的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明创造的保护范围之内。The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit the present invention; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: Any modification, equivalent replacement and improvement made within the principles shall be included in the protection scope of the present invention.
Claims (6)
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