Heat exchanger for battery positive electrode material control cabinet

Abstract

The utility model provides a heat exchanger for a battery anode material control cabinet, which comprises an existing heat exchanger assembly, a heat exchange tube of the heat exchanger assembly is divided into an upper part and a lower part, and an external air flow chamber and an internal air flow chamber are respectively arranged at the upper part and the lower part of the heat exchange tube. The external air flow chamber and the internal air flow chamber are two mutually independent cavities, and the external air flow chamber and the internal air flow chamber are respectively provided with a set of air exchange device. The control cabinet is provided with the two mutually independent air flow chambers, heat exchange is realized under the condition that air flows at the inner side and the outer side of the cabinet are completely separated by 100%, effective heat dissipation of the control cabinet is realized, and the problem of cross contamination of air inside and outside the control cabinet is solved. Meanwhile, the heat exchanger is made of non-copper-zinc materials, and secondary pollution caused by the material problem is avoided.

Description

Technical Field

[0001] The utility model relates to a heat exchanger for a control cabinet of a battery cathode material, belonging to the technical field of heat dissipation of a lithium battery control cabinet. Background Art

[0002] Metal impurities, especially copper and zinc, have a serious impact on the life and safety of batteries. All kinds of electrical components installed in the control cabinet contain metals such as copper and zinc. Metal impurities generated due to wear during the use of electrical components float in the air inside the cabinet.

[0003] High-power electrical components generate a large amount of heat during use. As a closed space, if the control cabinet is not cooled in time, the temperature inside the cabinet will rise, and the high temperature will affect the service life and reliability of electrical components. At present, the heat dissipation devices of the control cabinet include axial fans, heat exchangers, air conditioners, etc. Generally, an axial fan is used for heat exchange in the control cabinet of the cathode material. The hot air mixed with metal impurities inside the cabinet is blown out of the cabinet by the fan through a filter screen, but the filter screen cannot completely filter metal impurities, so there is a risk of foreign matter introduction. Although heat dissipation devices such as heat exchangers and air conditioners can realize independent air flow inside and outside, their main heat exchange mechanisms all contain a large amount of copper and zinc materials, which are not suitable for use in the cathode material production workshop. Therefore, it is necessary to find a heat dissipation device that can completely isolate the air inside and outside the cabinet and will not cause pollution to the external environment at the same time. Summary of the Utility Model

[0004] Aiming at the deficiencies in the prior art, the utility model provides a heat exchanger for a control cabinet of a battery cathode material. The heat exchanger uses the heat pipe principle to achieve heat exchange under the condition that the air flows on both sides inside and outside the cabinet are completely separated by 100%, so as to avoid the pollution caused by copper and zinc impurities and the pollution risk caused by the heat exchanger device itself.

[0005] The technical solution of the utility model: A heat exchanger for a control cabinet of a battery cathode material, including an existing heat exchanger assembly. The heat exchange tubes of the heat exchanger assembly are divided into upper and lower parts. An external air flow chamber and an internal air flow chamber are respectively installed on the upper and lower parts of the heat exchange tubes. The external air flow chamber and the internal air flow chamber are two independent chambers, and a set of air exchange device is installed on each of the external air flow chamber and the internal air flow chamber.

[0006] Further, the upper and lower parts of the heat exchange tubes are symmetrically placed in the external air flow chamber and the internal air flow chamber.

[0007] Further, the heat exchange tubes are filled with a refrigerant.

[0008] Further, the air exchange device is composed of an upper axial flow fan and an upper air outlet installed on the external air flow chamber, or composed of a lower axial flow fan and a lower air outlet installed on the internal air flow chamber.

[0009] Further, non-metallic filters are installed at both the upper air outlet and the lower air outlet.

[0010] Due to the adoption of the above technical solution, the advantages of the present utility model are as follows: The present utility model has two independent air flow chambers, and heat exchange is achieved under the condition that the air flows on both sides inside and outside the cabinet are completely separated by 100%, effectively dissipating heat from the control cabinet and solving the problem of cross-contamination of air inside and outside the control cabinet. At the same time, the materials of the heat exchanger itself are all non-copper-zinc materials, avoiding secondary pollution caused by material problems. Description of the Drawings

[0011] Figure 1 It is a cross-sectional view of the structural schematic diagram of the present utility model.

[0012] Description of the reference numerals: 1 - control cabinet door; 2 - heat exchanger assembly; 3 - upper axial flow fan; 4 - upper air outlet; 5 - lower air outlet; 6 - lower axial flow fan; 7 - heat exchange tube; 8 - external air flow chamber; 9 - internal air flow chamber. Detailed Description of the Embodiment

[0013] In order to make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments.

[0014] Embodiment

[0015] See Figure 1 , a heat exchanger for a control cabinet of a battery cathode material of the present utility model includes an existing heat exchanger assembly 2. The heat exchange tubes 7 of the heat exchanger assembly 2 are divided into upper and lower parts, and a refrigerant is filled in the heat exchange tubes 7. An external air flow chamber 8 and an internal air flow chamber 9 are respectively installed at the upper and lower parts of the heat exchange tubes 7, and the external air flow chamber 8 and the internal air flow chamber 9 are two independent chambers, and a set of air exchange devices are respectively installed on the external air flow chamber 8 and the internal air flow chamber 9. The upper and lower parts of the heat exchange tubes 7 are symmetrically placed in the external air flow chamber 8 and the internal air flow chamber 9.

[0016] The air exchange device is composed of an upper axial flow fan 3 and an upper air outlet 4 installed on the external air flow chamber 8, or composed of a lower axial flow fan 6 and a lower air outlet 5 installed on the internal air flow chamber 9. Non-metallic filters are installed at both the upper air outlet 4 and the lower air outlet 5.

[0017] The working principle of the present utility model:

[0018] During use, install the heat exchanger of the present utility model on the control cabinet door 1, and make the internal air flow chamber 9 located inside the control cabinet and the external air flow chamber 8 located outside the control cabinet. When the hot air inside the control cabinet is driven by the lower axial flow fan 6 and enters the internal air flow chamber 9, after heat exchange at the lower part of the heat exchange tube 7 and then returns to the control cabinet through the lower air outlet 5, the refrigerant in the heat exchange tube 7 continuously absorbs heat from the internal air flow chamber 9. After absorbing heat, the refrigerant evaporates into a gas and rises in the heat exchange tube 7. At this time, the upper axial flow fan 3 drives the external air to enter the external air flow chamber 8. After heat exchange at the upper half of the heat exchange tube 7, the heat is taken away through the air outlet 4, causing the steam in the heat exchange tube 7 to condense. The condensed liquid then returns to the lower part of the heat exchange tube 7. By repeating this cycle, heat exchange can be achieved under the condition that the airflows on both sides inside and outside the cabinet are completely separated by 100%, effectively dissipating the heat of the control cabinet and solving the problem of cross-contamination of the air inside and outside the control cabinet.

[0019] In this embodiment, the material of the heat exchange tube 7 is aluminum alloy. The upper axial flow fan 3 and the lower axial flow fan 6 are made of an aluminum alloy frame and plastic fan blades. Non-metallic filter nets are installed at both the upper air outlet 4 and the lower air outlet 5 to filter impurities in the air.

[0020] The above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features can be equivalently replaced; and all such modifications and replacements should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A heat exchanger for a battery cathode material control cabinet, comprising an existing heat exchanger assembly (2), characterized in that: The heat exchange tubes (7) of the heat exchanger assembly (2) are divided into upper and lower parts. An external air flow chamber (8) and an internal air flow chamber (9) are respectively installed on the upper and lower parts of the heat exchange tubes (7), and the external air flow chamber (8) and the internal air flow chamber (9) are two independent chambers. A set of air exchange devices are respectively installed on the external air flow chamber (8) and the internal air flow chamber (9).

2. The heat exchanger for the battery cathode material control cabinet according to claim 1, characterized in that: The upper and lower parts of the heat exchange tubes (7) are symmetrically placed in the external air flow chamber (8) and the internal air flow chamber (9).

3. The heat exchanger for the battery cathode material control cabinet according to claim 2, characterized in that: The heat exchange tubes (7) are filled with a refrigerant.

4. The heat exchanger for the battery cathode material control cabinet according to claim 1, characterized in that: The air exchange device is composed of an upper axial flow fan (3) and an upper air outlet (4) installed on the external air flow chamber (8) or a lower axial flow fan (6) and a lower air outlet (5) installed on the internal air flow chamber (9).

5. The heat exchanger for the battery cathode material control cabinet according to claim 4, wherein: Non-metallic filter nets are installed on both the upper air outlet (4) and the lower air outlet (5).

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