Water chamber structure and heat exchanger

Abstract

The application provides a water chamber structure and a heat exchanger. The water chamber structure comprises a water chamber head, a partition plate, an inlet connecting pipe and an outlet connecting pipe. The water chamber head has a cavity, the partition plate divides the cavity into a water inlet cavity and a water outlet cavity, the water chamber head has a water inlet opening communicating with the water inlet cavity and a water outlet opening communicating with the water outlet cavity. The inlet connecting pipe is connected to the water inlet opening, and the outlet connecting pipe is connected to the water outlet opening. The water inlet opening and the water outlet opening are oppositely arranged and partially overlap in the axial direction. The area of the water inlet opening is equal to the pipe opening area of the inlet connecting pipe, and the area of the water outlet opening is equal to the pipe opening area of the outlet connecting pipe. The application effectively solves the problem that the pipe opening flow channel of the water inlet opening or the water outlet opening is blocked by the partition plate.

Description

Technical Field

[0001] This application relates to the field of heat exchange technology, and in particular to a water chamber structure and heat exchanger. Background Technology

[0002] With the continuous advancement of heat exchange technology, heat exchangers are widely used in various fields, such as daily life and factory production. Some heat exchangers have water chambers, which are installed at the ends of the heat exchanger. The water chamber typically includes an inlet chamber and a return chamber. The water chamber plays a crucial role in the heat exchanger by introducing coolant, collecting and guiding the coolant outflow, and maintaining system stability. The water chamber is essential for ensuring the efficient and stable operation of the heat exchanger.

[0003] like Figure 1 As shown, due to structural limitations of the heat exchanger, the shapes of the inlet and outlet chambers in the existing water chamber structure cannot be arbitrarily adjusted. When the inlet and outlet are positioned opposite each other and partially overlap in the axial direction, if the straight baffle 20 shown in the figure is welded, the flow channel area of ​​the inlet 12 or outlet 13 will inevitably be blocked by the baffle 14, resulting in a large amount of turbulence in the water flow inside the pipe and the water chamber, causing significant flow resistance. Furthermore, since the straight plate itself has poor rigidity, two U-shaped steel supports need to be added below in large-tonnage water chambers to prevent deformation of the straight plate, thus increasing the material consumption of the water chamber structure.

[0004] Therefore, it is necessary to design a water chamber structure and heat exchanger to solve the above-mentioned technical problems. Utility Model Content

[0005] This application provides a water chamber structure and heat exchanger that can prevent the flow channels of the inlet or outlet pipes from being blocked.

[0006] According to a first aspect of the embodiments of this specification, a water chamber structure is provided, which includes a water chamber head, a partition, an inlet pipe, and an outlet pipe; the water chamber head has a cavity, the partition divides the cavity into an inlet cavity and an outlet cavity, the water chamber head has an inlet communicating with the inlet cavity and an outlet communicating with the outlet cavity; the inlet pipe is connected to the inlet, and the outlet pipe is connected to the outlet;

[0007] The inlet and outlet are arranged opposite to each other and partially overlap in the axial direction; the area of ​​the inlet is equal to the area of ​​the inlet pipe, and the area of ​​the outlet is equal to the area of ​​the outlet pipe.

[0008] Furthermore, the partition includes a main partition and an intermediate partition, the main partition being located above the water inlet, and the intermediate partition smoothly transitioning to the wall of the water outlet.

[0009] Furthermore, the main partition plate has a U-shaped notch at one end near the water outlet, and the middle partition plate is placed inside the U-shaped notch; the middle partition plate is recessed from the water outlet cavity to the water inlet cavity.

[0010] Furthermore, the intermediate partition has an arc-shaped structure.

[0011] Furthermore, the radial dimension of the intermediate partition gradually increases from the inlet to the outlet.

[0012] Furthermore, the thickness of the intermediate partition is less than the thickness of the main partition.

[0013] Furthermore, the partition is formed in one piece, and the main partition and the intermediate partition are a single integral component; or

[0014] The partition is formed from two pieces, with the main partition and the middle partition being two independent components.

[0015] Furthermore, one or more of the main partition and the intermediate partition are formed by sheet metal bending, casting, or welding.

[0016] Furthermore, it also includes an upper positioning plate and a lower positioning plate, which are fixed to the inner wall of the cavity and arranged at intervals between them; the partition is horizontally inserted between the upper positioning plate and the lower positioning plate from one side;

[0017] The main body partition has a notch for engaging the lower positioning plate.

[0018] According to a second aspect of the embodiments of this specification, a heat exchanger is provided, including the water chamber structure described in the first aspect, the water chamber structure being installed at the end of the heat exchanger.

[0019] This application offers the following advantages: It effectively solves the problem of obstructed flow channels at the inlet or outlet by using a baffle plate. Specifically, the main baffle plate is located above the inlet, and the intermediate baffle plate smoothly transitions to the outlet wall. This ensures that the area of ​​the inlet is equal to the area of ​​the inlet pipe, and the area of ​​the outlet is equal to the area of ​​the outlet pipe, preventing excessive turbulence at the outlet and reducing flow resistance.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0022] Figure 1 This is a schematic diagram of the water chamber structure in the prior art;

[0023] Figure 2 This is a schematic diagram of the water chamber structure in an embodiment of this application;

[0024] Figure 3 yes Figure 2 A diagram from another perspective;

[0025] Figure 4 yes Figure 2 A sectional view;

[0026] Figure 5 This is a schematic diagram of the partition in an embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10-Water chamber end cap; 11-Cavity; 111-Inlet cavity; 112-Outlet cavity; 12-Inlet; 13-Outlet; 14-Baffle;

[0029] 20-Partition; 21-Main partition; 211-Notch; 22-Intermediate partition;

[0030] 31-Import control; 32-Export control;

[0031] 41 - Upper positioning plate; 42 - Lower positioning plate;

[0032] 50-Flange. Detailed Implementation

[0033] The technical solutions in the embodiments of this application will be clearly and completely described herein with reference to the accompanying drawings. In the following description, when referring to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0034] If any terms related to directional indication or positional relationship are used in the embodiments of this application, such terms are only used to explain the relative positional relationship and movement of the components in a specific posture; if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, terms such as "first" and "second" used in the embodiments of this application are only used for descriptive convenience and should not be construed as indicating or implying relative importance.

[0035] The embodiments described in this specification will now be described in detail.

[0036] Reference Figure 2 and Figure 3As shown, this application discloses a water chamber structure, which includes a water chamber head 10, a baffle 20, an inlet pipe 31, and an outlet pipe 32. The water chamber head 10 has a cavity 11, and the baffle 20 divides the cavity 11 into an inlet cavity 111 and an outlet cavity 112.

[0037] In this embodiment, the inlet chamber 111 and the outlet chamber 112 are arranged vertically. In another embodiment, the inlet chamber 111 and the outlet chamber 112 can also be arranged horizontally, which can be adjusted according to the flow direction of water in the components connected to the water chamber structure, and is not limited here.

[0038] The water chamber head 10 has an inlet 12 communicating with the inlet chamber 111 and an outlet 13 communicating with the outlet chamber 112. An inlet pipe 31 is connected to the inlet 12 to introduce external fluid into the inlet chamber 111. An outlet pipe 32 is connected to the outlet 13 to discharge the heat-exchanged fluid out of the outlet chamber 112.

[0039] The inlet 12 and outlet 13 are positioned opposite each other and partially overlap in the axial direction. This allows for a more compact overall water chamber structure and reduces the height of the water chamber structure.

[0040] In one embodiment, the water chamber structure is installed at the end of the heat exchanger via flange 50. Fluid can enter the inlet chamber 111 through inlet pipe 31 and inlet port 12; then enter the heat exchanger; after heat exchange in the heat exchanger, the fluid enters the outlet chamber 112 of the water chamber structure from the heat exchanger; and finally flows out from outlet pipe 32 through outlet port 13.

[0041] Please refer to the reference again. Figure 4 and Figure 5 As shown, the partition 20 includes a main partition 21 and a middle partition 22. The main partition 21 has a U-shaped notch 211 at one end near the outlet 13, and the middle partition 22 is placed inside the U-shaped notch 211. The middle partition 22 is recessed from the outlet cavity 112 toward the inlet cavity 111.

[0042] In one embodiment, the partition 20 is formed in one piece, and the main partition 21 and the intermediate partition 22 are a single integral part. For example, it can be formed by stamping, which has the advantages of low cost and good forming quality.

[0043] In another embodiment, the partition 20 is formed from two pieces, with the main partition 21 and the intermediate partition 22 being two independent components. For example, the main partition 21 and the intermediate partition 22 are formed by welding, which is simple to manufacture and does not require a separate mold for the partition 20.

[0044] Considering that the main partition 21 and the intermediate partition 22 are irregularly shaped, one or more of the main partition 21 and the intermediate partition 22 can be formed by sheet metal bending, casting, or welding. The intermediate partition 22 can be obtained by beveling a circular steel pipe. Figure 5 The diameter of the circular steel pipe in the intermediate partition 22 shown can be adjusted in conjunction with the diameter of the outlet 13, which is conducive to realizing serialized design.

[0045] In this embodiment, the intermediate partition 22 has an arc-shaped structure, and its radial dimension gradually increases from the inlet 12 to the outlet 13. Thus, the intermediate partition 22 forms an inclined flow channel, allowing water to flow out continuously and efficiently. The water flow rate towards the outlet 13 in the outlet cavity 112 gradually increases, and the cross-sectional area also gradually increases, smoothly transitioning to the outlet 13. This ensures unobstructed flow and uniform flow velocity throughout the channel, and eliminates the large turbulence formed by the drop at the outlet 13, significantly reducing overall flow loss. Furthermore, the small turbulence also reduces noise generated by turbulence, resulting in a water chamber structure with low flow resistance, low noise, and high reliability.

[0046] Specifically, targeting Figure 1 and Figure 2 The pressure values ​​at outlet 13 were analyzed for the two water chamber structures shown. The relative pressure at outlet 13 was set to 0 Pa during the analysis. Table 1 below shows the pressure values ​​at outlet 13 for both structures.

[0047]

[0048] Table 1

[0049] Therefore, it can be concluded that, compared to the existing outlet 13, where the flow channel area is blocked by the baffle 14, resulting in a large amount of turbulence in the water flow between the outlet connector 32 and the outlet cavity 112, causing significant flow resistance, compared to... Figure 1 As shown in the structure, the pressure value at the outlet 13 in this embodiment is reduced by 50.5%.

[0050] Compared to the planar partition 20, which requires U-shaped steel support below, this implementation eliminates the support structure and allows the thickness of the intermediate partition 22 to be less than that of the main partition 21. Specifically, after simplifying the model of partition 20, strength and stiffness analysis revealed that the thickness of the main partition 21 is 20mm and the thickness of the intermediate partition 22 is 16mm, which meets the working requirements, i.e., the maximum stress is less than 160MPa.

[0051] In this embodiment, the main partition 21 is located above the inlet 12, and the intermediate partition 22 smoothly transitions to the wall of the outlet 13. This ensures that the area of ​​the inlet 12 is equal to the area of ​​the inlet pipe 31, and the area of ​​the outlet 13 is equal to the area of ​​the outlet pipe 32, preventing excessive turbulence at the outlet 13 and reducing flow resistance.

[0052] The water chamber structure also includes an upper positioning plate 41 and a lower positioning plate 42, which are fixed to the inner wall of the cavity 11 and arranged at intervals. A partition plate 20 is horizontally inserted between the upper positioning plate 41 and the lower positioning plate 42 from one side. The main partition plate 21 has a notch 211 for engaging the lower positioning plate 42. In this way, the position of the partition plate 20 within the water chamber structure can be positioned, and the disassembly and assembly of the partition plate 20 can be facilitated, making future maintenance easier.

[0053] In another embodiment, the partition 20 is welded within the water chamber structure. Compared to Figure 1 In this process, the number of welding points has been reduced from the original four long seams and two short seams to two short seams and two long seams, saving material and processing costs and reducing welding deformation. If the partition 20 is formed by stamping, then the weld only consists of two short seams connecting the partition 20 and the inner wall of the cavity 11.

[0054] This application employs an arc-shaped structure on the partition 20 to connect with the outlet 13, ensuring that the area of ​​the outlet 13 is equal to the area of ​​the outlet connector 32. Specifically, the partition 20 has a central partition 22 with an arc-shaped structure at a certain angle, which is integrated with the horizontal main partition 21 and smoothly transitions to the wall of the outlet 13. This design offers advantages such as low water resistance, fewer welding points, and high strength and rigidity.

[0055] This application also discloses a heat exchanger including a water chamber structure. The water chamber structure is installed at the end of the heat exchanger. The heat exchanger described herein, due to its low flow resistance, low noise, and high reliability, can be applied in refrigerators, air conditioners, automotive thermal management systems, and so on.

[0056] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A water chamber structure, characterized by, It comprises a water chamber head, a partition, an inlet connector and an outlet connector; the water chamber head has a cavity, the partition separates the cavity into a water inlet cavity and a water outlet cavity, the water chamber head has a water inlet opening communicating with the water inlet cavity and a water outlet opening communicating with the water outlet cavity; The inlet connector is connected to the water inlet opening, and the outlet connector is connected to the water outlet opening; The water inlet opening and the water outlet opening are oppositely arranged and partially overlap in the axial direction; the area of the water inlet opening is equal to the area of the pipe opening of the inlet connector, and the area of the water outlet opening is equal to the area of the pipe opening of the outlet connector.

2. The water chamber structure according to claim 1, wherein The partition comprises a main partition and an intermediate partition, the main partition is located above the water inlet opening, and the intermediate partition smoothly transitions with the hole wall of the water outlet opening.

3. The water chamber structure according to claim 2, wherein The main partition is provided with a U-shaped notch at one end close to the water outlet opening, and the intermediate partition is arranged in the U-shaped notch; the intermediate partition is recessed from the water outlet cavity to the water inlet cavity.

4. The water chamber structure according to claim 3, wherein The intermediate partition is in an arc-shaped structure.

5. The water chamber structure according to claim 4, wherein The radial dimension of the intermediate partition gradually increases from the water inlet opening to the water outlet opening.

6. The water chamber structure according to claim 5, wherein The thickness of the intermediate partition is smaller than the thickness of the main partition.

7. The water chamber structure according to claim 2, wherein The partition is one formed piece, and the main partition and the intermediate partition are an integral piece; or The partition is two formed pieces, and the main partition and the intermediate partition are two independent components.

8. The water chamber structure according to claim 2, wherein One or more of the main partition and the intermediate partition are formed by sheet metal bending, cast forming or welding forming.

9. The water chamber structure according to claim 2, further comprising an upper positioning plate and a lower positioning plate, the upper positioning plate and the lower positioning plate are fixed to the inner wall of the cavity and arranged in an upper and lower spaced manner; the partition is horizontally inserted between the upper positioning plate and the lower positioning plate from one side; The main partition is provided with a notch for clamping the lower positioning plate. The water chamber structure according to any one of claims 1-9 is installed at the end of the heat exchanger.

10. A heat exchanger, characterized by ​

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