Eight-5G BBU immersion pool

Abstract

The utility model discloses eight 5G BBU immersion pools which are arranged in a single-phase immersion type liquid cooling cabinet, an inner cavity of each immersion pool (4) is of a big-end-up structure, the big upper structure of each immersion pool (4) is a weak current and optical fiber wiring space, and the lower structure of each immersion pool (4) is a small-end-down structure. The small lower structure of the immersion tank (4) is a mounting space for a 5G BBU (12), a flow equalizing and liquid separating device (7) and a liquid collecting device (6); a BBU mounting guide rail (5) for fixing the 5G BBU (12) is arranged on a platform for connecting the upper part and the lower part of an inner cavity of the immersion tank (4); the single-phase immersion type liquid cooling cabinet can simultaneously have weak current and optical fiber wiring spaces and installation spaces of the 5G BBU, the flow equalizing and liquid separating device and the liquid collecting device, so that the whole immersion pool is more miniaturized, and the single-phase immersion type liquid cooling cabinet can be designed to be smaller.

Description

Technical Field

[0001] The utility model relates to the field of 5G BBU cooling technology, and specifically, is an immersion pool for 8 5G BBUs. Background Art

[0002] The "Information and Communications Industry Green and Low-Carbon Development Action Plan (2022-2025)" jointly issued by the Ministry of Industry and Information Technology and seven other departments in August 2022 states: "By 2025, the power usage effectiveness (PUE) of newly built large and ultra-large data centers nationwide will be reduced to below 1.3." It also states: "Improve the energy efficiency of IT facilities. Actively apply liquid-cooled and high-temperature IT equipment to improve the energy efficiency of IT equipment in data centers." The 5G BBU immersion liquid cooling cabinet is a type of data center liquid cooling. Currently, existing technologies or patents include cold plate liquid cooling, single-phase immersion liquid cooling, two-phase immersion liquid cooling, and air cooling.

[0003] Immersion liquid cooling has a lower PUE than cold plate liquid cooling and air cooling, a higher power saving rate, and occupies less space. Compared with single-phase immersion liquid cooling, two-phase immersion liquid cooling requires a specially sealed pressure vessel and is not conducive to online maintenance.

[0004] In single-phase immersion liquid cooling, the immersion pools are different, with different immersion objects and immersion quantities. The wiring methods for weak current and optical fibers are also different, and the convenience of maintenance is also different. For the operation of 5G BBU, it is best to perform online maintenance without affecting the operation of other 5G BBUs. The size of the immersion pool will determine the size of the immersion liquid cooling cabinet. The smaller the size of the immersion liquid cooling cabinet, the easier it is to install and maintain later.

[0005] Currently, single-phase immersion liquid cooling cabinet immersion tanks are large in size, lack good compatibility with weak current and fiber optic wiring space, are not very convenient for online maintenance, and are not ideal for integrating liquid separation devices.

[0006] At present, the liquid separation device in the immersion tank of the single-phase immersion liquid cooling cabinet is usually an integral and sealed liquid separation cavity. The cooled single-phase coolant is injected into the liquid separation cavity through a circulating pump. A single hole is opened on the inside of the liquid separation cavity corresponding to each 5GBBU, and the coolant is sprayed to each 5G BBU through the small hole.

[0007] The use of the above liquid separation device results in different and uneven flow rates of single-phase coolant in each 5G BBU. The heat emitted by each 5G BBU cannot be removed evenly and promptly, resulting in large temperature differences between the single-phase coolant and the working environment of the 5G BBU. Utility Model Content

[0008] The purpose of this utility model is to design an immersion tank for 8 5G BBUs, which can simultaneously have space for weak current and optical fiber wiring and installation space for 5G BBUs, flow distribution devices, and liquid collection devices, so that the entire immersion tank is more miniaturized, thereby enabling the design of a single-phase immersion liquid cooling cabinet to be smaller.

[0009] The utility model is realized through the following technical scheme: an 8-5G BBU immersion tank is arranged in a single-phase immersion liquid cooling cabinet, characterized in that: the inner cavity of the immersion tank is a large upper and small lower structure, the large upper structure of the immersion tank is a weak current and optical fiber wiring space, the small lower structure of the immersion tank is a 5G BBU, a flow distribution device and a liquid collection device installation space, and a BBU installation guide rail for fixing the 5G BBU is provided on the platform where the upper and lower parts of the inner cavity of the immersion tank are connected.

[0010] In order to further better realize the 8-5G BBU immersion pool described in the present invention, the following setting structure is specially adopted: in the lower part of the inner cavity of the immersion pool, the uniform flow and liquid separation device and the liquid collection device are both attached to the inner wall of the immersion pool and the two are arranged opposite to each other, and the 5G BBU is arranged between the uniform flow and liquid separation device and the liquid collection device.

[0011] In order to further better realize the 8 5G BBU immersion pools described in the present invention, the following setting structure is particularly adopted: a liquid inlet is provided on the wall adjacent to the immersion pool and the equal flow liquid separation device, and a liquid outlet and a liquid level meter detection interface are provided on the wall adjacent to the immersion pool and the liquid collection device.

[0012] In order to further better realize the 8 5G BBU immersion pools described in the present invention, the following setting structure is particularly adopted: the equalizing flow and liquid separation device includes an equalizing liquid tank arranged on the inner wall of the immersion tank, and an equalizing liquid tank liquid inlet is arranged on the side of the equalizing liquid tank adjacent to the inner wall of the immersion tank, and multiple equalizing liquid tank liquid separation outlets are arranged on the opposite side of the equalizing liquid tank liquid inlet on the equalizing liquid tank.

[0013] In order to further better realize the 8 5G BBU immersion pools described in the present invention, the following setting structure is particularly adopted: at least two equalizing liquid tanks are provided, and the two equalizing liquid tanks are separated by a partition.

[0014] In order to further better realize the 8 5G BBU immersion pools described in the present invention, the following setting structure is particularly adopted: on each liquid balancing tank, the liquid inlet of the liquid balancing tank is set at the same position, and the liquid distribution outlet of the liquid balancing tank adopts the same layout structure.

[0015] Further, in order to better realize the utility model, the 8 5G BBU immersion pools are provided with the following setting structure: at least three layers of liquid distribution outlet are arranged on each liquid distribution bin, and the liquid distribution outlet on each layer of liquid distribution bin is at least two.

[0016] Further, in order to better realize the utility model, the 8 5G BBU immersion pools are provided with the following setting structure: the liquid passing area of the liquid distribution outlet is 2 / 5 of the liquid passing area of the liquid inlet of the liquid distribution bin.

[0017] Further, in order to better realize the utility model, the 8 5G BBU immersion pools are provided with the following setting structure: the weak current wire inlet gland, the optical fiber wire inlet bin and the GPS wire inlet are arranged on the upper structure wall of the immersion pool, the optical fiber wire inlet bin and the GPS wire inlet are arranged on the same side wall, and the weak current wire inlet gland is arranged on the wall opposite to the wall on which the optical fiber wire inlet bin and / or the GPS wire inlet are arranged.

[0018] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0019] The utility model can simultaneously have the installation space of the weak current, the optical fiber wiring space and the 5G BBU, the current distribution and distribution device and the liquid collecting device, so that the whole immersion pool is more miniaturized, and thus the single-phase immersion type liquid cooling cabinet can be designed to be smaller.

[0020] The utility model can simultaneously install 8 5G BBUs, has the efficient and uniform cooling liquid to take away the heat, so that the operation environment of each 5G BBU has no temperature difference; the cooling liquid is easy to evaporate, and good sealing is achieved, and the volatilization loss of the cooling liquid is minimized.

[0021] The utility model simultaneously considers the wiring space of the weak current and the optical fiber, and the online maintenance of the 5G BBU is convenient and fast.

[0022] The current distribution and distribution device can better balance the cooling liquid flowing through each 5G BBU, so that the cooling liquid flowing through each 5G BBU has the same flow, flows more uniformly, and can take away the heat more timely and uniformly.

[0023] Compared with the ordinary distribution device, the current distribution and distribution device of the utility model makes each 5G BBU have no temperature difference, runs more safely and stably, and has higher heat dissipation efficiency.

[0024] Other features and advantages of the present application will be described in the following description, and some will become apparent from the description, or will be understood from the practice of the present application. The purpose and other advantages of the present application can be achieved and obtained by the structure specifically pointed out in the written description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work. The above and other purposes, features and advantages of the present application will be more clearly shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings. The drawings are not intentionally scaled to actual size, and the focus is on illustrating the main purpose of the present application.

[0026] Figure 1 This is a structural diagram of the flow-equalizing and liquid-separating device described in the present invention.

[0027] Figure 2 This is a structural diagram of a single liquid equalizing tank described in the present utility model.

[0028] Figure 3 This is a schematic diagram of the structure of the utility model (first perspective).

[0029] Figure 4 This is a schematic diagram of the structure of the utility model (second perspective).

[0030] Figure 5 This is a schematic diagram of the structure of the utility model (third perspective).

[0031] Figure 6 This is a schematic diagram of the structure of this utility model (including 5G BBU).

[0032] Among them, 1-liquid equalization tank, 2-liquid equalization tank inlet, 3-liquid equalization tank outlet, 4-immersion tank, 5-BBU installation rail, 6-liquid collecting device, 7-flow equalization and liquid distribution device, 8-weak current cable gland, 9-fiber optic cable entry tank, 10-GPS cable entry, 12-5G BBU, 16-liquid inlet, 17-liquid outlet, 18-liquid level gauge detection interface. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below with reference to the embodiments, but the embodiments of the present invention are not limited thereto.

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application.

[0035] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Meanwhile, in the description of the present application, relationship terms such as "first", "second" and the like are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Furthermore, the term "and / or" in the present application is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone.

[0036] In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0037] In addition, the terms "first", "second" are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, and the meaning of "multiple positions" is two positions or more, unless otherwise explicitly specified.

[0038] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; they can also refer to electrical connection; they can refer to direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0039] The functional modules in each embodiment of the present application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0040] In this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, principle, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, principle, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises..." do not exclude the presence of other identical elements in the process, principle, article or device that includes the elements.

[0041] Glossary:

[0042] 5G: Fifth generation mobile communication technology.

[0043] BBU: indoor baseband processing unit.

[0044] Example 1:

[0045] An 8-port 5G BBU immersion tank can simultaneously provide space for weak current and optical fiber wiring as well as installation space for 5G BBU, flow distribution device, and liquid collection device, making the entire immersion tank more compact, thereby enabling the design of a single-phase immersion liquid cooling cabinet to be smaller, such as Figures 1 to 6 As shown, it is arranged in a single-phase immersion liquid cooling cabinet. The inner cavity of the immersion tank 4 is a large upper and small lower structure. The large upper structure of the immersion tank 4 is a weak current and optical fiber wiring space, and the small lower structure of the immersion tank 4 is an installation space for the 5G BBU12, the equal flow liquid distribution device 7 and the liquid collection device 6. A BBU installation guide rail 5 for fixing the 5G BBU12 is provided on the platform where the upper and lower parts of the inner cavity of the immersion tank 4 are connected.

[0046] As an optimal design scheme, the eight 5G BBU immersion tanks are arranged in a single-phase immersion liquid cooling cabinet, and the inner cavity of the immersion tank 4 is a large upper and small lower structure (the immersion part is small and the non-immersion part is large). The large upper structure of the immersion tank 4 is the weak current and optical fiber wiring space. The upper space comprehensively considers the weak current, optical fiber line and optical fiber wiring space, as well as the 5G BBU online maintenance space; the small lower structure of the immersion tank 4 is the installation space for the 5G BBU12, the equal flow liquid distribution device 7 and the liquid collection device 6. The size of the lower part of the immersion tank 4 is determined according to the characteristics of the 5G BBU outer frame and the calculated amount of coolant, so the immersion tank 4 as a whole is large at the top and small at the bottom; a BBU mounting rail 5 for fixing the 5G BBU12 is provided on the platform where the upper and lower parts of the inner cavity of the immersion tank 4 are connected.

[0047] There are 8 5G BBUs 12, and the entire immersion pool is highly integrated with the minimum space required for the operation of 8 5G BBUs and the wiring space for weak current and optical fiber.

[0048] Example 2:

[0049] This embodiment is further optimized based on the above embodiment, and the similarities with the above technical solutions are not repeated here. Figures 1 to 6 As shown, in order to better realize the 8 5G BBU immersion pools described in the present invention, the following setting structure is particularly adopted: in the lower part of the inner cavity of the immersion pool 4, the flow-evening liquid separation device 7 and the liquid collecting device 6 are both attached to the inner wall of the immersion pool 4 and the two are arranged opposite to each other, and the 5G BBU12 is arranged between the flow-evening liquid separation device 7 and the liquid collecting device 6.

[0050] As a preferred design scheme, in the lower part of the inner cavity of the immersion tank 4, a flow-averaging liquid separation device 7 and a liquid collection device 6 are respectively arranged on the inner wall on the long sides on both sides, and 8 5G BBU12s are arranged between the flow-averaging liquid separation device 7 and the liquid collection device 6, and the fixing bracket of the 5GBBU12 is fixed on the BBU mounting rail 5 on the platform where the upper and lower parts of the inner cavity of the immersion tank 4 are connected.

[0051] Example 3:

[0052] This embodiment is further optimized based on any of the above embodiments, and the similarities with the above technical solutions are not repeated here. Figures 1 to 6 As shown, in order to better realize the 8 5G BBU immersion pools described in the present invention, the following setting structure is particularly adopted: a liquid inlet 16 is provided on the wall adjacent to the immersion pool 4 and the equal flow liquid separation device 7, and a liquid outlet 17 and a liquid level meter detection interface 18 are provided on the wall adjacent to the immersion pool 4 and the liquid collecting device 6.

[0053] As a preferred design scheme, the liquid inlet 16 is arranged on the wall adjacent to the immersion pool 4 and the flow-distributing and distributing device 7, and is used for inputting the cooling liquid into the flow-distributing and distributing device 7; the liquid outlet 17 and the liquid level meter detection interface 18 are arranged on the wall adjacent to the immersion pool 4 and the liquid collecting device 6, wherein the liquid outlet 17 is used for conveying the cooling liquid collected by the liquid collecting device 6 after heat exchange; and the liquid level meter detection interface 18 can be used for installing a liquid level meter to accurately detect the liquid level in real time.

[0054] Embodiment 4:

[0055] This embodiment is further optimized on the basis of any of the above embodiments, and the same parts as the foregoing technical solutions will not be described here again, as shown in Figures 1 to 6 In order to effectively make the single-phase cooling liquid flowing between the 5G BBUs more uniform, and there is no temperature difference between the 5G BBUs, and the 5G BBUs can operate more safely, the flow-distributing and distributing device 7 comprises a liquid-distributing bin 1 arranged at the inner side wall of the immersion pool 4, a liquid-distributing bin liquid inlet 2 arranged at one side of the liquid-distributing bin 1 adjacent to the inner side wall of the immersion pool 4, and a plurality of liquid-distributing bin liquid outlets 3 arranged on the liquid-distributing bin 1 opposite to the liquid-distributing bin liquid inlet 2.

[0056] As a preferred design scheme, the flow-distributing and distributing device 7 changes the whole distributing cavity structure of the existing distributing device into a plurality of separate distributing cavities (liquid-distributing bins 1), each of which is separately supplied with liquid, and each of the distributing cavities (liquid-distributing bins 1) is designed with a plurality of liquid outlets (liquid-distributing bin liquid outlets 3), so that the cooling liquid flowing between the 5G BBUs has the same flow rate and flows more uniformly, and can carry away heat more timely and uniformly.

[0057] In use, after the cooled cooling liquid enters the liquid-distributing bin 1 from the liquid-distributing bin liquid inlet 2, it is sprayed from the plurality of liquid-distributing bin liquid outlets 3 opposite to the liquid-distributing bin liquid inlet 2 to cool the 5G BBUs arranged in the immersion pool 4, so that the cooling liquid flowing between the 5G BBUs has the same flow rate and flows more uniformly, and can carry away heat more timely and uniformly.

[0058] Embodiment 5:

[0059] This embodiment is further optimized on the basis of any of the above embodiments, and the same parts as the foregoing technical solutions will not be described here again, as shown in Figures 1 to 6 In order to better realize the 8-5G BBU immersion pool, the following arrangement structure is particularly adopted: the liquid-distributing bin 1 is provided with at least two liquid-distributing bins 1, and the two liquid-distributing bins 1 are separated by a partition; preferably, the flow-distributing and distributing device is designed with four liquid-distributing bins 1, and each of the liquid-distributing bins 1 corresponds to two 5G BBUs 12.

[0060] Embodiment 6:

[0061] The embodiment is further optimized on the basis of any of the above embodiments, and the same parts as the foregoing technical solutions will not be described here again. Figures 1 to 6 As shown in the figure, further to better realize the utility model discloses an 8 5G BBU immersion pool, especially adopt the following setting structure: on each uniform liquid storehouse 1, uniform liquid storehouse liquid inlet 2 is set at the same position, and uniform liquid storehouse liquid outlet 3 adopts the same layout structure.

[0062] Embodiment 7:

[0063] The embodiment is further optimized on the basis of any of the above embodiments, and the same parts as the foregoing technical solutions will not be described here again. Figures 1 to 6 As shown in the figure, further to better realize the utility model discloses an 8 5G BBU immersion pool, especially adopt the following setting structure: on each uniform liquid storehouse 1, uniform liquid storehouse liquid inlet 2 is set at the same position, and uniform liquid storehouse liquid outlet 3 adopts the same layout structure.

[0064] Embodiment 8:

[0065] The embodiment is further optimized on the basis of any of the above embodiments, and the same parts as the foregoing technical solutions will not be described here again. Figures 1 to 6 As shown in the figure, further to better realize the utility model discloses an 8 5G BBU immersion pool, especially adopt the following setting structure: the liquid area of uniform liquid storehouse liquid outlet 3 is 2 / 5 of the liquid area of uniform liquid storehouse liquid inlet 2.

[0066] Embodiment 9:

[0067] The embodiment is further optimized on the basis of any of the above embodiments, and the same parts as the foregoing technical solutions will not be described here again. Figures 1 to 6 As shown in the figure, further to better realize the utility model discloses an 8 5G BBU immersion pool, especially adopt the following setting structure: on the upper structure wall of the immersion pool 4, weak current wiring gland 8, optical fiber wiring storehouse 9 and GPS wiring port 10 are arranged, and optical fiber wiring storehouse 9 and GPS wiring port 10 are arranged on the same side wall, and weak current wiring gland 8 is arranged on the wall opposite to the wall where optical fiber wiring storehouse 9 or / and GPS wiring port 10 is arranged.

[0068] As a preferred design scheme, a low-voltage incoming line gland 8, a fiber optic incoming line compartment 9 and a GPS incoming line port 10 are respectively arranged on the walls of the two short sides of the upper structure of the immersion tank 4, wherein the fiber optic incoming line compartment 9 and the GPS incoming line port 10 are arranged on the same short side wall, and the low-voltage incoming line gland 8 is arranged on the other short side wall.

[0069] The entire immersion tank is highly integrated with the minimum space required for the operation of 8 5G BBUs and the wiring space for weak current and optical fibers, and fully considers the sealing of each line inlet to minimize the volatilization loss of coolant.

[0070] The utility model determines the optimal size of the immersed part of the liquid cooling pool 4 according to the characteristics of 8 5G BBUs 12 and the calculated amount of cooling liquid. At the same time, the immersed part integrates a flow-equalizing liquid distribution device 7 and a liquid collecting device 6. The upper space fully considers the installation and online maintenance space of the 5GBBUs 12, and highly integrates the incoming and wiring space for weak current and optical fibers. Due to the volatile nature of the cooling liquid, the sealing performance of the liquid cooling pool 4 is comprehensively considered. For weak current cables and GPS, glands are used for sealing, and for optical fibers, optical fiber incoming line compartments are used for sealing.

[0071] Based on the above advantages, this utility model adopts a highly integrated liquid cooling pool (immersion pool 4) to simultaneously install 8 5GBBU12s, and the coolant can efficiently and evenly remove heat, so that the operating environment of each 5G BBU12 has no temperature difference; considering the volatile nature of the coolant, it also achieves good sealing performance.

[0072] At the same time, it takes into account the wiring space for weak current and optical fiber, and also facilitates and speeds the online maintenance of 5G BBU12.

[0073] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of this application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the principles, ideas, spirit, and principles of this application shall be included within the scope of protection of this application.

Claims

1. An 8-port 5G BBU immersion tank, installed in a single-phase immersion liquid cooling cabinet, characterized by: The inner cavity of the immersion tank (4) is a structure with a large upper portion and a small lower portion. The large upper portion of the immersion tank (4) is a space for weak current and optical fiber wiring, and the small lower portion of the immersion tank (4) is an installation space for a 5G BBU (12), a flow distribution device (7), and a liquid collecting device (6). A BBU installation guide rail (5) for fixing the 5G BBU (12) is provided on a platform connecting the upper and lower portions of the inner cavity of the immersion tank (4).

2. The 8-5G BBU immersion tank according to claim 1, characterized in that: At the lower part of the inner cavity of the immersion tank (4), the flow-evening liquid separation device (7) and the liquid collecting device (6) are both attached to the inner wall of the immersion tank (4) and are arranged opposite to each other, and the 5G BBU (12) is arranged between the flow-evening liquid separation device (7) and the liquid collecting device (6).

3. The eight 5G BBU immersion tank according to claim 2, characterized in that: A liquid inlet (16) is provided on a wall of the immersion tank (4) adjacent to the flow-averaging and liquid-distributing device (7), and a liquid outlet (17) and a liquid level meter detection interface (18) are provided on a wall of the immersion tank (4) adjacent to the liquid collecting device (6).

4. The eight 5G BBU immersion tank according to claim 1, 2, or 3, wherein: The flow-balancing liquid separation device (7) comprises a liquid balancing bin (1) arranged on the inner wall of the immersion tank (4), a liquid balancing bin liquid inlet (2) being arranged on a side of the liquid balancing bin (1) adjacent to the inner wall of the immersion tank (4), and a plurality of liquid balancing bin liquid separation outlets (3) being arranged on the liquid balancing bin (1) on the opposite side of the liquid balancing bin liquid inlet (2).

5. The eight 5G BBU immersion tank according to claim 4, characterized in that: At least two liquid equalizing bins (1) are provided, and the two liquid equalizing bins (1) are separated by a partition.

6. The eight 5G BBU immersion tank according to claim 4, characterized in that: On each liquid balancing bin (1), the liquid balancing bin liquid inlet (2) is arranged at the same position, and the liquid balancing bin liquid separation outlet (3) adopts the same layout structure.

7. The eight 5G BBU immersion tank according to claim 4, characterized in that: At least three layers of liquid balancing bin liquid separation outlets (3) are provided on each liquid balancing bin (1), and there are at least two liquid balancing bin liquid separation outlets (3) on each layer of the liquid balancing bin (1).

8. The eight 5G BBU immersion tank according to any one of claims 5 to 7, characterized in that: The liquid flow area of ​​the liquid distribution outlet (3) of the liquid distribution bin is 2 / 5 of the liquid flow area of ​​the liquid distribution bin inlet (2).

9. The eight 5G BBU immersion tank according to claim 4, characterized in that: The liquid flow area of ​​the liquid distribution outlet (3) of the liquid distribution bin is 2 / 5 of the liquid flow area of ​​the liquid distribution bin inlet (2).

10. The eight 5G BBU immersion tank according to any one of claims 1 to 3, 5 to 7, and 9, characterized in that: A weak current incoming line gland (8), an optical fiber incoming line compartment (9) and a GPS incoming line port (10) are provided on the upper structural wall of the immersion tank (4), and the optical fiber incoming line compartment (9) and the GPS incoming line port (10) are provided on the same side wall, and the weak current incoming line gland (8) is provided on a wall opposite to the wall where the optical fiber incoming line compartment (9) and / or the GPS incoming line port (10) are provided.

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