A split-flow heat exchanger

Abstract

The utility model belongs to heat exchanger technical field especially relates to a shunt type heat exchanger, include: shell, for providing installation and fluid constraint space for shunt structure and heat exchanger, a plurality of heat exchangers are arranged in the shell inside along the fluid flow direction, shunt structure is set up in the shell inside, the shunt structure includes: multilayer fluid inlet and multilayer fluid outlet, and the fluid input end of a plurality of heat exchangers is individually communicated with corresponding one of the fluid inlet layer. The utility model discloses a heat exchanger and corresponding fluid inlet, fluid outlet individually communicated setting, make multiple heat exchangers form parallel fluid passage, under the premise of not changing the inlet size, realize the uniform distribution and high -efficient dredge of fluid.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchanger technology, and in particular relates to a diversion-type heat dissipation design. Background Technology

[0002] With the increasing demand for thermal management, the requirements for the heat exchange capacity and efficiency of heat exchangers are constantly increasing. Many application areas, including electronic cooling, air conditioning and refrigeration, and electric vehicle cooling, have a need for miniaturization of heat exchangers and their supporting fluid power equipment.

[0003] Increasing the heat exchange area is a common design method to enhance the heat exchange capacity of conventional heat exchangers. In space-constrained applications, heat exchangers are typically arranged along the fluid inlet direction, and the conventional design involves increasing the length of the heat exchanger. While this increases the heat exchange area, the thermal boundary layer inside the heat exchanger grows inefficiently, and the heat exchange efficiency decreases significantly with increasing thickness. Furthermore, increasing the length of the heat exchanger in the fluid flow direction also introduces significant pressure loss, increasing fluid dynamic energy consumption and generating greater mixing noise. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a flow-diverting heat exchanger.

[0005] In view of this, the present invention provides a split-flow heat exchanger, comprising: The housing provides installation and fluid confinement space for the flow distribution structure and heat exchanger; Several heat exchangers are arranged inside the outer shell along the direction of fluid flow; A current distribution structure is disposed inside the housing, the current distribution structure comprising: The system features streamlined multi-layer fluid inlets and outlets, with each fluid inlet of the heat exchangers connected individually to one of the corresponding fluid inlets, and each fluid outlet of the heat exchangers connected individually to one of the corresponding fluid outlets. The fluid passes through multiple heat exchangers in parallel before being discharged through the outer shell.

[0006] Preferably, the outer shell is rectangular, and the heat exchangers are also rectangular, with the fluid passing through the multiple heat exchangers in parallel before being discharged through the outer shell.

[0007] Preferably, the outer shell surface has several outlets, and the outlets are connected to the outlets of nearby heat exchangers, so that the fluid is discharged nearby and the flow loss is reduced.

[0008] Preferably, each heat exchanger inlet and outlet is provided with several streamlined baffles.

[0009] Preferably, the heat exchanger includes a streamlined heat exchange microchannel or a streamlined fin structure.

[0010] The beneficial effects of this utility model are: This invention connects heat exchangers to their respective fluid inlets and outlets separately, creating a partially overlapping and parallel fluid pathway. This achieves uniform distribution and efficient flow of fluid without altering the inlet size. Each heat exchanger can independently and fully exchange heat with the fluid under low flow resistance conditions. This not only effectively reduces the overall size and improves space utilization but also enhances the heat exchange efficiency and fluid distribution accuracy of the cooling system. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the shell, flow distribution structure, and heat exchanger arrangement in Example 1; Figure 2 This is a schematic diagram of Example 2; Figure 3 This is a schematic diagram of the centrifugal impeller installation in Example 1; Figure 4 This is a schematic diagram of the overall composition of Example 5; Figure 5 This is a schematic diagram of Example 4; Figure 6 This is a schematic diagram of Example 3; Figure 7 This is a schematic diagram of the overall implementation of Example 6.

[0012] The markings in the diagram are as follows: 1. Outer shell; 2. Flow divider structure; 3. Heat exchanger; 4. Baffle plate; 5. Centrifugal impeller; 6. Axial impeller; 7. Discharge port. Detailed Implementation

[0013] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0014] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connection arrangements between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0015] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0017] Example 1: like Figure 1 and Figure 3 As shown, a split-flow heat exchanger includes: The outer casing 1 provides installation and fluid confinement space for the flow splitting structure 2 and the heat exchanger 3; Several heat exchangers 3 are arranged inside the outer shell 1 along the fluid flow direction; The diversion structure 2 is disposed inside the outer casing 1, and the diversion structure 2 includes: The system features streamlined multi-layer fluid inlets and outlets, with each fluid inlet of the heat exchangers 3 connected individually to one of the corresponding fluid inlets, and each fluid outlet of the heat exchangers 3 connected individually to one of the corresponding fluid outlets. The fluid passes through multiple heat exchangers 3 in parallel and is then discharged through the outer casing 1.

[0018] This application achieves orderly flow distribution and guidance of fluid within the multi-stage heat exchangers 3 by setting up multiple fluid inlets and outlets and connecting each heat exchanger 3 individually. This ensures that the fluid can pass through multiple heat exchangers 3 sequentially for sufficient heat exchange, significantly improving heat dissipation efficiency. At the same time, the layered and independent flow channel design reduces fluid mixing interference, making the heat dissipation performance of each heat exchanger 3 more stable and controllable. The overall structure is compact and rationally laid out.

[0019] In the example of this application, the outer shell 1 is arranged in a cuboid shape, and the plurality of heat exchangers 3 are arranged in a cuboid shape. The fluid passes through the plurality of heat exchangers 3 in parallel and is then discharged through the outer shell 1.

[0020] As a preferred example of this application, both the outer shell 1 and the heat exchanger 3 are designed as cuboids, which has higher adaptability, can make full use of the internal space of the cuboid outer shell 1, improve space utilization, facilitate the installation and adaptation with other equipment, and the rectangular flow channel is conducive to uniform fluid distribution, reduces flow resistance, and improves the integration of the heat dissipation system.

[0021] In the example of this application, a second receiving cavity is provided at one end of the inner cavity of the outer shell 1 for housing the centrifugal impeller 5, and a plurality of the heat exchangers 3 are arranged sequentially on the air supply path of the centrifugal impeller 5.

[0022] As a preferred example of this application, by providing a second receiving cavity at one end of the inner cavity of the outer casing 1 to specifically house the centrifugal impeller 5, and arranging the heat exchanger 3 on the air supply path, the airflow generated by the impeller can directly and efficiently enter the heat dissipation system, reducing airflow loss. The forced air supply design of the centrifugal impeller 5 enhances the fluid velocity and flow rate, further improving heat dissipation efficiency.

[0023] In the example of this application, several of the heat exchangers 3 overlap at least partially on a projection plane perpendicular to the fluid flow direction.

[0024] As a preferred example of this application, the heat exchangers 3 partially overlap on the projection plane perpendicular to the fluid flow direction. While ensuring that the fluid flows through each heat exchanger 3 in sequence, the overall length of the heat dissipation system along the fluid flow direction is greatly shortened, and a flattened design of the overall structure is achieved, saving installation space. At the same time, the setting of the overlapping area causes a certain disturbance in the fluid during the flow process, enhancing the heat exchange effect.

[0025] In the example of this application, the airflow holes on the heat exchanger 3 are arranged in a rectangular array on the surface of the heat exchanger 3, forming multiple rectangular array airflow hole structures distributed vertically along the heat exchanger 3, and the multi-layer fluid inlet and multi-layer fluid outlet are both connected to the corresponding rectangular array airflow hole structures.

[0026] As a preferred example of this application, the airflow hole structure of the rectangular array precisely corresponds to the multi-layer fluid inlet and outlet, enabling the fluid to be evenly distributed to all areas of the heat exchanger 3 and avoiding local overheating. The vertically distributed rectangular array design increases the heat dissipation area and airflow contact area, improving the heat dissipation efficiency per unit volume, while the regular hole array structure facilitates processing and manufacturing.

[0027] Example 2, as Figure 2 As shown: The difference between this embodiment and Embodiment 1 is that: In the example of this application, each heat exchanger 3 is provided with several streamlined baffles 4 at both the inlet and outlet.

[0028] As a preferred example of this application, streamlined guide plates 4 are provided inside the fluid inlet and outlet of each layer, which can guide the fluid to flow along a preset path, reduce eddies and dead zones, reduce fluid resistance loss, and the design of the guide plates 4 allows the fluid to enter the airflow holes of the heat exchanger 3 more evenly, further optimize the flow field distribution, ensure that the heat exchange efficiency of each layer of heat exchanger 3 remains consistent, and improve the stability of the overall heat dissipation performance.

[0029] Example 3, as Figure 6 As shown: The difference between this embodiment and Embodiment 1 is that: In the example of this application, the heat exchanger 3 includes a streamlined heat exchange microchannel or a streamlined fin structure; As a preferred example of this application, the streamlined heat exchanger 3 design can significantly increase the contact area between the fluid and the heat exchange wall within the limited internal space of the heat exchanger 3. Furthermore, the streamlined design can guide the fluid to flow along a preset path, reduce internal flow resistance, and avoid heat exchange dead zones caused by local eddies. In addition, the streamlined heat exchange microchannel refers to the fact that the heat exchanger 3 itself has a built-in flow channel, which can be injected with other heat exchange media to achieve heat dissipation in conjunction with this application.

[0030] Example 4, as Figure 5 As shown: The difference between this embodiment and Embodiment 1 is that: In the example of this application, the surface of the outer shell 1 is provided with a plurality of outlets 7, and the outlets 7 are connected to the outlet of the adjacent heat exchanger 3, so that the fluid is discharged nearby and the flow loss is reduced. Specifically, in embodiment 1 there is only one outlet 7, located on one side of the outer shell 1, while in this embodiment there are multiple outlets 7, which are located on the outside of the outer shell 1. As a preferred example of this application, compared to the single outlet 7 design of Embodiment 1, the precise connection between multiple outlets 7 and their corresponding fluid outlets enables the "branched discharge" of the fluid after heat exchange, avoiding the fluid congestion problem that may occur with a single outlet 7, ensuring consistent fluid discharge speed in each channel, and maintaining the flow balance of the entire heat exchange system. Simultaneously, the multiple outlets 7 are distributed on the outside of the housing 1, flexibly adapting to the multi-interface requirements of subsequent fluid handling equipment without the need for additional branch pipes, simplifying the overall piping layout of the system, and improving integration convenience. Furthermore, when some outlets 7 are temporarily closed due to maintenance or malfunction, the remaining outlets 7 can continue to operate, ensuring continuous operation of the heat exchange system, enhancing the fault tolerance and reliability of the equipment, and is particularly suitable for heat exchange scenarios requiring 24-hour uninterrupted operation (such as data center cooling, industrial production line cooling, etc.).

[0031] Example 5, as Figure 4 As shown: The difference between this embodiment and Embodiment 1 is that: In the example of this application, the outer casing 1 is cylindrical, and the single-stage heat exchanger 3 is arranged in a circular shape.

[0032] As a preferred example of this application, the outer shell 1 is cylindrical and the heat exchanger 3 is arranged in a circular pattern. The two structures are highly compatible, making full use of the radial space of the cylindrical outer shell 1, so that the fluid forms a more uniform circulation field within the shell and reduces dead zones. The combination of the disc-shaped heat exchanger 3 and the cylindrical outer shell 1 allows for more complete heat exchange in the radial direction. At the same time, the overall structure is highly symmetrical, which is conducive to balanced fluid pressure distribution, reduces local resistance loss, and improves the stability of the heat dissipation system.

[0033] In the example of this application, a first receiving cavity is provided in the middle position of the outer shell 1 for accommodating the axial flow impeller 6. Several heat exchangers 3 are respectively arranged on both sides of the first receiving cavity. Two sets of flow splitting structures 2 are also provided, respectively located on both sides of the first receiving cavity, and arranged inside the outer shell 1 along the fluid flow direction formed by the air blown by the axial flow impeller 6.

[0034] As a preferred example of this application, an axial impeller 6 is installed in a first receiving cavity in the middle of the cylindrical shell 1, and several heat exchangers 3 are arranged sequentially along the unidirectional fluid flow direction on the same side of the impeller's airflow path. This allows the airflow to flow orderly through all heat exchangers 3 in a single direction, avoiding pressure cancellation and flow loss caused by bidirectional flow. The unidirectional flow channel design ensures that the fluid energy is concentrated on the heat dissipation path, reducing airflow attenuation. At the same time, the sequential arrangement of the heat exchangers 3 along the airflow direction enables gradient heat exchange, allowing the fluid to gradually complete heat exchange during flow, thus improving overall heat dissipation efficiency. The centrally placed axial impeller 6 and the unidirectionally arranged heat exchangers 3 form a straight flow channel, shortening the fluid flow path, reducing resistance loss, and the symmetrical cylindrical structure makes the flow field distribution more uniform, avoiding local turbulence from interfering with the heat dissipation effect.

[0035] As a preferred example of this application, the airflow holes on the surface of the heat exchanger 3 are distributed in an annular pattern and form a radial multi-layer structure, which is precisely matched with the multi-layer fluid inlet and outlet, so that the fluid can flow in an orderly manner in a radial layer, which greatly increases the contact area between the airflow and the heat exchanger 33.

[0036] Example 6: As Figure 7 As shown: The difference between this embodiment and embodiment 5 is as follows: In the example of this application, the first receiving cavity is disposed on one side of the inner cavity of the outer shell 1, and the heat exchanger 3 is located on one side of the first receiving cavity; As a preferred example of this application, the first receiving cavity (for mounting the axial impeller 6) and the heat exchanger 3 are concentrated on the same side of the inner cavity of the outer shell 1, forming a "single-sided compact layout." This significantly frees up internal space on the other side of the outer shell 1, facilitating the integration of other auxiliary components (such as temperature sensors, filters, etc.) or adapting to space-constrained installation scenarios (such as inside small equipment or in narrow cabinets). From a fluid flow perspective, the single-sided layout allows the airflow generated by the axial impeller 6 to act directly on the heat exchanger 3 along the shortest path, reducing airflow detour losses within the shell and lowering the airflow attenuation rate. Simultaneously, the single-sided concentrated flow channel design facilitates precise control of the fluid flow direction, avoiding turbulence interference caused by the convergence of airflows from multiple directions, ensuring uniform fluid flow across the surface of the heat exchanger 3, and improving heat exchange uniformity. Furthermore, this layout simplifies the equipment assembly process; the first receiving cavity and the heat exchanger 3 can be pre-assembled as a module and then embedded into the outer shell 1 as a whole, shortening the production and maintenance cycle and reducing labor costs.

[0037] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A split-flow heat exchanger, characterized by ,include: The outer casing (1) provides installation and fluid confinement space for the flow splitting structure (2) and the heat exchanger (3); Several heat exchangers (3) are arranged inside the outer shell (1) along the fluid flow direction; A diversion structure (2) is disposed inside the outer casing (1), the diversion structure (2) comprising: The system features streamlined multi-layer fluid inlets and outlets, with each fluid inlet of the heat exchangers (3) connected individually to one of the corresponding fluid inlets, and each fluid outlet of the heat exchangers (3) connected individually to one of the corresponding fluid outlets. The fluid passes through multiple heat exchangers (3) in parallel and is then discharged through the outer shell (1).

2. The split-flow heat exchanger of claim 1, wherein: The outer shell (1) is rectangular, and several heat exchangers (3) are rectangular. The fluid passes through multiple heat exchangers (3) in parallel and is then discharged through the outer shell (1).

3. The split-flow heat exchanger of claim 2, wherein: The outer shell (1) has several outlets (7) on its surface, and the outlets (7) are connected to the outlet of the adjacent heat exchanger (3) so that the fluid can be discharged nearby and the flow loss can be reduced.

4. The split-flow heat exchanger of claim 1, wherein: Each heat exchanger (3) has several streamlined guide vanes (4) at its inlet and outlet.

5. The split-flow heat exchanger of claim 1, wherein: The heat exchanger (3) includes a streamlined heat exchange microchannel or a streamlined fin structure.

6. The split-flow heat exchanger of claim 1, wherein: The outer shell (1) is cylindrical, and the single-stage heat exchanger (3) is arranged in a circular shape.

7. A split-flow heat exchanger (3) according to claim 6, characterized in that: The outer shell (1) is provided with a first receiving cavity for setting an axial flow impeller (6), and a plurality of heat exchangers (3) are arranged inside the outer shell (1) along the fluid flow direction.

8. A split-flow heat exchanger according to claim 7, characterized in that: The first receiving cavity is located in the middle of the inner cavity of the outer shell (1), and the heat exchanger (3) is provided in two sets, located on both sides of the axial flow impeller (6).

9. A flow-diverting heat exchanger according to claim 7, characterized in that: The first receiving cavity is located on one side of the inner cavity of the outer shell (1), and the heat exchanger (3) is located on one side of the axial flow impeller (6).

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