A profile for an energy storage heat exchanger and an energy storage heat exchanger.

Abstract

This utility model discloses a profile for an energy storage heat exchanger and an energy storage heat exchanger. The profile includes a profile body with a first cavity and a second cavity. There are at least two first cavities spaced apart in a left-right direction. A second cavity is located between two adjacent first cavities. First inner fins are alternately arranged on opposite sides of the inner wall of the first cavity. Second inner fins are arranged on the inner wall of the second cavity, with a plurality of second inner fins arranged in a ring around the center of the second cavity. This utility model improves the uniformity of the internal temperature of the energy storage heat exchanger by alternating the first and second cavities and alternately arranging the first inner fins on both sides of the inner wall of the first cavity, thereby making the heat dissipation of the energy storage heat exchanger more uniform and deepening the melting degree of the phase change material.

Description

Technical Field

[0001] This utility model relates to the field of heat pipe technology, specifically to a profile for an energy storage heat pipe and an energy storage heat pipe. Background Technology

[0002] With the continuous advancement of satellite communication technology, digital phased array antennas have become an important technology for realizing direct satellite connections for mobile phones because they can generate a large number of independent scanning beams simultaneously and effectively improve the communication capacity of satellite payloads through spatial hierarchical design.

[0003] The application of this technology has not only expanded the capabilities of satellite communication but also promoted the construction and development of seamless global communication networks. However, with the demand for high performance and multi-functionality, digital multi-beam phased array antennas generate a large amount of heat during operation, which places extremely high demands on the heat dissipation capabilities of the spaceborne antenna and platform.

[0004] A Chinese patent document with publication number CN117039390B describes a phased array antenna and communication device. This phased array antenna includes multiple phase-change heat pipes (i.e., energy storage heat pipes). A phase-change medium is encapsulated within each phase-change heat pipe. The phased array antenna utilizes the phase-change heat pipes for heat dissipation.

[0005] The existing phase change heat pipe profiles have overly simple structures, resulting in insufficient melting of the phase change material inside the heat pipe and poor temperature uniformity, which in turn leads to poor heat storage and heat transfer performance of the phase change heat pipe. Utility Model Content

[0006] This utility model proposes a profile for an energy storage heat exchanger and an energy storage heat exchanger. The technical problem to be solved is that the existing profile for an energy storage heat exchanger has an overly simple structure, which results in the insufficient melting of the phase change material inside the energy storage heat exchanger and poor temperature uniformity, thus leading to poor heat storage and heat transfer performance of the energy storage heat exchanger.

[0007] On the one hand, the present invention discloses a profile for an energy storage heat exchanger pipe, comprising a profile body, wherein the profile body is provided with a first cavity and a second cavity;

[0008] There are at least two first cavities, which are spaced apart in the left-right direction; a second cavity is provided between two adjacent first cavities;

[0009] First inner fins are alternately arranged on opposite sides of the inner wall of the first cavity;

[0010] The inner wall of the second cavity is provided with second inner fins, and a plurality of second inner fins are arranged in a ring around the center of the second cavity. By alternating the first and second cavities, the staggered arrangement of the first inner fins, and the ring-shaped distribution of the second inner fins, the uniformity of the internal temperature of the energy storage heat pipe is improved, thereby making the heat dissipation of the energy storage heat pipe more uniform.

[0011] Furthermore, the first inner fins are vertically arranged on the top and bottom surfaces of the inner wall of the first cavity. By adopting the above scheme, the contact area of ​​the inner wall of the first cavity is increased by staggering the first inner fins on the top and bottom surfaces, resulting in better heat transfer and more uniform heat dissipation from the energy storage heat pipe.

[0012] Furthermore, the inner wall of the first cavity near the adjacent second cavity protrudes inward in an arc shape;

[0013] The inner wall of the first cavity is located away from the adjacent second cavity and is parallel to the outer wall of the profile body. This design reduces the difficulty of molding the profile body.

[0014] Furthermore, within the same first cavity, the total cross-sectional area of ​​the first inner fins accounts for 10% to 20% of the total cross-sectional area of ​​the first cavity. Using the above scheme, the structure achieves better heat transfer performance.

[0015] Furthermore, the first cavity includes two side cavities and several intermediate cavities;

[0016] The two side cavities are symmetrically distributed on the left and right sides of the profile body, respectively.

[0017] The second cavity is at least two, spaced apart between the two side cavities;

[0018] An intermediate cavity is provided between two adjacent second cavities; the total cross-sectional area of ​​one intermediate cavity is greater than the total cross-sectional area of ​​one side cavity. This design ensures more uniform heat dissipation between two adjacent second cavities.

[0019] Furthermore, there is one intermediate cavity and two second cavities;

[0020] The two second cavities are symmetrically distributed between the two side cavities;

[0021] The total area of ​​the intermediate cavity cross section is greater than or equal to the sum of the total areas of the two side cavity cross sections.

[0022] Furthermore, the fin height of the first inner fin is 5 mm; the fin width of the first inner fin is 0.5 mm; and the fin spacing between two adjacent first inner fins within the same first cavity is 3 mm. Using the above scheme, the 3 mm fin spacing can improve the temperature uniformity inside the energy storage heat pipe.

[0023] Furthermore, the second inner fin is a petal-shaped fin, and the cross-section of the second cavity is flower-shaped. This design increases the contact area of ​​the inner wall of the second cavity, resulting in better heat transfer.

[0024] On the other hand, this utility model also discloses an energy storage heat exchanger pipe, including the profile for the energy storage heat exchanger pipe and a sealing cap for sealing the end of the profile for the energy storage heat exchanger pipe.

[0025] The first cavity of the energy storage heat pipe profile is filled with paraffin wax.

[0026] The second cavity of the profile used for the energy storage heat exchanger is filled with ammonia. By adopting the above scheme, the uniformity of the internal temperature of the energy storage heat exchanger is improved by alternating the distribution of paraffin wax and ammonia, the cooperation between the first fin and paraffin wax, and the cooperation between the second fin and ammonia, thereby making the heat dissipation of the energy storage heat exchanger more uniform.

[0027] Furthermore, there are two sealing caps, which are respectively adapted to seal the front and rear ends of the profile for the energy storage heat exchanger tube;

[0028] One of the sealing caps is provided with a first tube, which is adapted to communicate with the first cavity; paraffin is adapted to be injected into the first cavity through the first tube.

[0029] Another sealing cap is provided with a second tube, which is adapted to be connected to the second cavity; ammonia gas is adapted to be injected into the second cavity through the second tube.

[0030] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0031] By alternating the distribution of the first cavity and the second cavity, staggering the arrangement of the first inner fins, and annularly distributing the second inner fins, the uniformity of the internal temperature of the energy storage heat exchanger is improved, thereby making the heat dissipation of the energy storage heat exchanger more uniform.

[0032] By alternating the distribution of paraffin and ammonia, the coordination between the first fin and paraffin, and the coordination between the second fin and ammonia, the uniformity of the internal temperature of the energy storage heat exchanger is improved, and the melting degree of the phase change material is deepened.

[0033] The above description of the disclosed content and the following description of the embodiments are intended to demonstrate and explain the spirit and principle of the present invention, and to provide a further explanation of the scope of the patent application of the present invention. Attached Figure Description

[0034] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0035] Figure 1 This is a cross-sectional schematic diagram of the profile used for the energy storage heat exchanger pipe in this utility model;

[0036] Figure 2 This is a schematic diagram of the energy storage heat exchanger in this utility model.

[0037] Explanation of icon numbers:

[0038] 1. Profile body; 11. First cavity; 11a. Side cavity; 11b. Middle cavity; 12. Second cavity; 13. First inner fin; 14. Second inner fin; 2. Sealing cover; 21. First tube; 22. Second tube. Detailed Implementation

[0039] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0040] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0041] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0042] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided with," "set up," "connected," and "linked" 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 or an electrical 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 embodiment based on the specific circumstances.

[0043] On one hand, this application discloses a profile for an energy storage heat exchanger pipe. Please refer to [link / reference]. Figure 1 As shown, the profile for the energy storage heat exchanger includes a profile body 1. In this embodiment, the outer contour of the profile body 1 is a rectangular strip structure. The length direction of the profile body 1 is the front-to-back direction.

[0044] The profile body 1 has a first cavity 11 and a second cavity 12, and the first cavity 11 and the second cavity 12 are not connected. There are at least two first cavities 11, which are spaced apart in the left-right direction. A second cavity 12 is provided between two adjacent first cavities 11. First inner fins 13 are staggered on opposite sides of the inner wall of the first cavity 11. Second inner fins 14 are provided on the inner wall of the second cavity 12. A number of second inner fins 14 are arranged in a ring around the center of the second cavity 12.

[0045] The first cavity 11 is suitable for being filled with paraffin wax, and the second cavity 12 is suitable for being filled with ammonia gas.

[0046] In this embodiment, the first inner fin 13 is vertically disposed on the top and bottom surfaces of the inner wall of the first cavity 11.

[0047] In this embodiment, the second inner fin 14 is a petal-shaped fin. The cross-section of the second cavity 12 is flower-shaped to increase the contact area between the ammonia gas and the second cavity 12, resulting in better heat transfer.

[0048] In this embodiment, the inner wall of the first cavity 11 near the adjacent second cavity 12 is arc-shaped and protrudes inward to accommodate the flower-shaped cross-section of the second cavity 12, thereby reducing the molding difficulty of the profile body 1. The inner wall of the first cavity 11 away from the adjacent second cavity 12 is arranged parallel to the outer wall of the profile body 1 to reduce the molding difficulty of the profile body 1.

[0049] Within the same first cavity 11, the total cross-sectional area of ​​the first inner fins 13 accounts for 10% to 20% of the total cross-sectional area of ​​the first cavity 11. That is, within the same first cavity 11, the total volume of the first inner fins 13 accounts for 10% to 20% of the total volume of the first cavity 11. Preferably, within the same first cavity 11, the total volume of the first inner fins 13 accounts for 15% of the total volume of the first cavity 11, which improves the heat transfer effect of the energy storage heat pipe.

[0050] Furthermore, the first cavity 11 includes two side cavities 11a and several intermediate cavities 11b. The two side cavities 11a are symmetrically distributed on the left and right sides of the profile body 1, respectively. There are at least two second cavities 12, spaced apart between the two side cavities 11a. An intermediate cavity 11b is provided between two adjacent second cavities 12. To ensure better heat transfer performance of the energy storage heat pipe, the total cross-sectional area of ​​one intermediate cavity 11b is greater than the total cross-sectional area of ​​one side cavity 11a. That is, on the same profile body 1, the total volume of one intermediate cavity 11b is greater than the total cross-sectional volume of one side cavity 11a.

[0051] In this embodiment, there is one intermediate cavity 11b. There are two second cavities 12. The two second cavities 12 are symmetrically distributed between the two side cavities 11a. The total cross-sectional area of ​​the intermediate cavity 11b is greater than or equal to the sum of the total cross-sectional areas of the two side cavities 11a.

[0052] Specifically, the wing height of the first inner fin 13 is 5 mm. The wing width of the first inner fin 13 is 0.5 mm. Two first inner fins 13 are provided in the side cavity 11a, respectively disposed on the top and bottom surfaces of the side cavity 11a. Within the same side cavity 11a, the wing spacing between two adjacent first inner fins 13 is 3 mm. Six first inner fins 13 are provided in the intermediate cavity 11b, wherein three first inner fins 13 form a group, and each group of fins is distributed in a comb-like pattern. A group of fins is provided on the top and bottom surfaces of the intermediate cavity 11b. Within the same intermediate cavity 11b, the wing spacing between two adjacent first inner fins 13 is 3 mm.

[0053] On the other hand, this application also discloses an energy storage heat exchanger. Please refer to [link / reference]. Figure 2 As shown, the energy storage heat exchanger includes a profile for the energy storage heat exchanger and sealing caps 2 for sealing the ends of the profile. There are two sealing caps 2, suitable for sealing the front and rear ends of the profile body 1, thereby sealing the front and rear ends of the first cavity 11 and the second cavity 12, and the cavities are not interconnected. The profile for the energy storage heat exchanger is filled with a phase change material.

[0054] In this embodiment, the first cavity 11 is filled with paraffin wax. Preferably, the paraffin wax includes n-octadecane. Paraffin wax absorbs excess heat through phase transitions, thereby enabling the heat storage heat exchanger to have heat storage and temperature regulation functions. The second cavity 12 is filled with ammonia gas. At the heated locations on the outer surface of the heat pipe, during the liquid-to-gas transition of ammonia gas, the ammonia gas flows rapidly within the pipe and then flows back along the pipe wall (i.e., returns to a liquid state). This allows the heat storage heat exchanger to quickly transfer heat from the heating section to the non-heating section, improving the overall temperature uniformity of the pipe.

[0055] In this embodiment, one sealing cap 2 is provided with three first tubes 21. The first tubes 21 are adapted to communicate with the corresponding first cavity 11. Liquid paraffin is adapted to be injected into the corresponding first cavity 11 through the first tubes 21. The other sealing cap 2 is provided with two second tubes 22. The second tubes 22 are adapted to communicate with the corresponding second cavity 12. Ammonia gas is adapted to be injected into the corresponding second cavity 12 through the second tubes 22.

[0056] The preparation method for the heat pipe used in energy storage is as follows:

[0057] The sealing cap 2 is welded to the end of the first cavity 11;

[0058] Paraffin wax is injected into the first cavity 11 through the first tube 21 so that the paraffin wax fills 90% to 95% of the volume of the first cavity 11; after the injection of paraffin wax is completed, the first tube 21 is sealed so that the first cavity 11 is in a sealed state.

[0059] Ammonia gas is injected into the second cavity 12 through the second pipe 22 so that the ammonia gas fills part of the space of the second cavity 12; after the injection of ammonia gas is completed, the second pipe 22 is sealed so that the second cavity 12 is in a sealed state.

[0060] In this embodiment, the profile body 1 and the sealing cover 2 are made of the same material, both of which are 6063 aluminum alloy.

[0061] The working principle of a phased array antenna when an energy storage heat pipe is used is as follows:

[0062] When the phased array antenna dissipates heat through the energy storage heat pipe, the paraffin inside the energy storage heat pipe absorbs heat through a phase change; the ammonia inside the energy storage heat pipe changes from liquid to gas and flows rapidly, carrying heat to the entire section of the energy storage heat pipe, promoting the phase change material that has not undergone a phase change to absorb heat, thereby achieving effective heat dissipation for the phased array antenna.

[0063] After heat dissipation is completed, the paraffin in the energy storage heat exchanger tube stores heat and regulates temperature through phase change; the ammonia in the energy storage heat exchanger tube undergoes liquid-to-gas conversion at high temperature, and then flows rapidly to achieve heat transfer, thereby accelerating the heat transfer between different phase change materials and promoting the solidification of the phase change material.

[0064] In this process, by alternating the distribution of paraffin and ammonia, and by staggering the first inner fins 13 on both sides of the inner wall of the first cavity 11, the uniformity of the internal temperature of the energy storage heat exchanger is improved, thereby making the heat dissipation of the energy storage heat exchanger more uniform.

[0065] In summary, this invention improves the uniformity of temperature inside the energy storage heat exchanger by alternating the first and second cavities, staggering the first inner fins, and annularly distributing the second inner fins, thereby making the heat dissipation of the energy storage heat exchanger more uniform. Furthermore, by alternating the distribution of paraffin wax and ammonia gas, the interaction between the first fins and paraffin wax, and the interaction between the second fins and ammonia gas, the uniformity of temperature inside the energy storage heat exchanger is improved, and the melting degree of the phase change material is deepened.

[0066] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A profile for an energy storage heat pipe, characterized by, Includes a profile body (1), on which a first cavity (11) and a second cavity (12) are provided; There are at least two first cavities (11), which are spaced apart in the left-right direction; a second cavity (12) is provided between two adjacent first cavities (11). The inner walls of the first cavity (11) are provided with first inner fins (13) on opposite sides. The inner wall of the second cavity (12) is provided with a second inner fin (14), and a plurality of the second inner fins (14) are arranged in a ring around the center of the second cavity (12).

2. The profile for an energy storage uniform heating pipe according to claim 1, characterized in that, The first inner fin (13) is vertically disposed on the top and bottom surfaces of the inner wall of the first cavity (11).

3. The profile for an energy storage uniform heating pipe according to claim 1, characterized in that, The inner wall of the first cavity (11) on the side adjacent to the second cavity (12) is arc-shaped and protrudes inward; The inner wall of the first cavity (11) away from the adjacent second cavity (12) is arranged parallel to the outer wall of the profile body (1).

4. The profile for an energy storage uniform heating pipe according to claim 1, characterized in that, Within the same first cavity (11), the total area of ​​the cross-section of the first inner fin (13) accounts for 10% to 20% of the total area of ​​the cross-section of the first cavity (11).

5. The profile for an energy storage uniform heating pipe according to claim 1, characterized in that, The first cavity (11) includes two side cavities (11a) and several intermediate cavities (11b). The two side cavities (11a) are symmetrically distributed on the left and right sides of the profile body (1), respectively. The second cavity (12) is at least two, and is spaced apart between the two side cavities (11a); An intermediate cavity (11b) is provided between two adjacent second cavities (12); the total area of ​​the cross section of one intermediate cavity (11b) is greater than the total area of ​​the cross section of one side cavity (11a).

6. The profile for an energy storage uniform heating pipe according to claim 5, characterized in that, There is one intermediate cavity (11b) and two second cavities (12); The two second cavities (12) are symmetrically distributed between the two side cavities (11a); The total area of ​​the cross-section of the intermediate cavity (11b) is greater than or equal to the sum of the total areas of the cross-sections of the two side cavities (11a).

7. The profile for an energy storage uniform heating pipe according to claim 1, characterized in that, The wing height of the first inner wing (13) is 5 mm; the wing width of the first inner wing (13) is 0.5 mm; and the wing distance between two adjacent first inner wing (13) within the same first cavity (11) is 3 mm.

8. The profile for an energy storage uniform heating pipe according to claim 1, characterized in that, The second inner fin (14) is a petal-shaped fin, and the cross-section of the second cavity (12) is flower-shaped.

9. An energy storage heat pipe, characterized by, Includes the energy storage heat exchanger profile as described in any one of claims 1 to 8 and a sealing cap (2) for sealing the end of the energy storage heat exchanger profile; The first cavity (11) of the energy storage heat pipe profile is filled with paraffin wax; The second cavity (12) of the energy storage heat pipe profile is filled with ammonia.

10. The energy storage uniform heating pipe according to claim 9, characterized in that, There are two sealing caps (2), which are respectively suitable for sealing the front and rear ends of the energy storage heat pipe profile; One of the sealing caps (2) is provided with a first tube (21), the first tube (21) being adapted to communicate with the first cavity (11); paraffin is adapted to be injected into the first cavity (11) through the first tube (21); A second tube (22) is provided on the other sealing cover (2), and the second tube (22) is adapted to communicate with the second cavity (12); ammonia is adapted to be injected into the second cavity (12) through the second tube (22).

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