Data center power and cooling integrated system based on flow battery

Abstract

This invention belongs to the field of data center power supply and cooling technology, and discloses a comprehensive data center power supply and cooling system based on flow batteries. The system includes: using the flow battery electrolyte as both a cooling and power supply medium; absorbing heat from the data center load via a heat exchanger; and then transferring the heat to the battery stack for power generation. The heated electrolyte enhances reaction kinetics and output power. Combined with an absorption chiller and a circulating cooling water module, it achieves cascaded waste heat recovery and electrolyte circulation cooling. Multiple temperature sensors monitor and adjust the drive pump flow rate and electrolyte valve opening / closing in real time, ensuring precise temperature control and system safety. This system solves the problems of low heat dissipation efficiency, inability to recover waste heat, independent power supply and cooling systems, high overall energy consumption, and low energy utilization in traditional data centers. It achieves coordinated operation of power supply and cooling, significantly reducing energy consumption, improving energy utilization and system stability, and is suitable for the needs of high-density, high-computing-power data centers.

Description

Technical Field

[0007] ,

[0001] The present invention belongs to the technical field of power supply and cooling for data centers, and relates to an integrated power supply and cooling system for data centers based on flow batteries. Background Art

[0002] With the continuous deepening of the global digitalization process, the rapid popularization of applications such as artificial intelligence, cloud computing, and high-performance computing, the computing power demand and installed capacity of data centers have continued to grow at a high speed, the operating power consumption and heat flux density of equipment have increased significantly, and energy consumption and heat dissipation problems have become the core obstacles restricting the safe and stable operation and green and low-carbon development of data centers. The overall energy consumption scale of data centers continues to expand, and the traditional energy supply and heat dissipation modes are difficult to adapt to the needs of new infrastructure with high density and high computing power. The energy utilization efficiency and the system collaborative operation ability are facing severe challenges.

[0003] Currently, air-cooling technology is commonly used in data centers. Affected by inherent defects such as low air thermal conductivity, limited heat transfer efficiency, and uneven air flow distribution, it is unable to efficiently remove the concentrated heat generated by high-power chips and servers, easily causing problems such as local overheating and uneven heat dissipation of equipment, seriously affecting the operation stability. At the same time, the air-cooling system itself has extremely high energy consumption for supporting fans and refrigeration units, resulting in a high proportion of cooling energy consumption in data centers. Moreover, a large amount of low-grade waste heat generated during operation is not recycled and directly discharged into the environment, which not only causes a large amount of energy waste but also aggravates environmental heat pollution, contrary to the development goal of energy conservation and consumption reduction.

[0004] At the level of the coordination between energy supply and thermal management, the existing power supply systems and cooling systems in data centers are independent of each other and lack coupling. They highly rely on external power grids for power supply and lack a safe, reliable, and flexibly expandable energy storage support solution. Traditional technologies can neither integrate the energy storage medium and the cooling medium for reuse nor achieve the cascade recovery and efficient utilization of waste heat. The thermal management and energy supply systems cannot be optimized collaboratively, and the overall energy comprehensive utilization rate is low, making it difficult to meet the development needs of data centers for high efficiency, energy conservation, low carbon, and safe and stable operation. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems of low heat dissipation efficiency, inability to recycle waste heat, independence of power supply and cooling systems, high comprehensive energy consumption, and low energy utilization efficiency in traditional data centers, and to provide an integrated power supply and cooling system for data centers based on flow batteries.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A data center power supply and cooling integrated system based on flow batteries includes: a flow battery power supply and cooling module and a circulating cooling water module; the flow battery power supply and cooling module includes a positive electrolyte storage tank, a negative electrolyte storage tank, a drive pump, a flow battery stack, an absorption chiller, a data center load, a heat exchanger II, a DC / DC converter and a power grid;

[0008] The data center load is tightly connected to heat exchanger II. The low-temperature electrolyte output from the positive and negative electrolyte storage tanks is pumped into heat exchanger II. After absorbing heat from the data center load, the low-temperature electrolyte flows into the flow battery stack to generate electricity. The electricity is supplied to the data center load via a DC / DC converter and combined with the grid for complementary power supply. After the reaction, the high-temperature electrolyte enters an absorption chiller to release waste heat. The absorption chiller cools the high-temperature electrolyte. After cooling, the electrolyte flows back to the positive and negative electrolyte storage tanks.

[0009] The circulating cooling water module includes: a cooling water storage tank, a cooling water drive pump III, and a heat exchanger I; the cooling water in the cooling water storage tank flows into the absorption chiller, cools the absorption chiller, and then flows into the heat exchanger I via the cooling water drive pump III to pre-cool the electrolyte that is about to enter the data center load. After cooling, the cooling water flows back to the storage tank.

[0010] A further improvement of the present invention is that:

[0011] Furthermore, the driving pump includes a positive electrolyte driving pump I and a negative electrolyte driving pump II; the positive electrolyte driving pump I is connected to a positive electrolyte storage tank; the negative electrolyte driving pump II is connected to a negative electrolyte storage tank; the positive electrolyte driving pump I and the negative electrolyte driving pump II are connected to a heat exchanger I; the low-temperature electrolyte is pre-cooled by the heat exchanger I before flowing into the heat exchanger II.

[0012] Furthermore, a positive electrolyte valve I is provided between the positive electrolyte driving pump I and the positive electrolyte storage tank; a negative electrolyte valve II is provided between the negative electrolyte driving pump II and the negative electrolyte storage tank.

[0013] Furthermore, temperature sensor I and temperature sensor II are provided between heat exchanger I and heat exchanger II; temperature sensor I is used to detect the temperature of the negative electrode electrolyte flowing from heat exchanger I into heat exchanger II; temperature sensor II is used to detect the temperature of the positive electrode electrolyte flowing from heat exchanger I into heat exchanger II.

[0014] Furthermore, temperature sensor III and temperature sensor IV are provided between the heat exchanger II and the flow battery stack; temperature sensor III and temperature sensor IV are used to monitor the temperature of the positive electrode electrolyte and the temperature of the negative electrode electrolyte after heat dissipation, respectively.

[0015] Furthermore, temperature sensor V and temperature sensor VI are respectively installed between the absorption chiller and the positive electrolyte storage tank and the negative electrolyte storage tank; temperature sensor V monitors the temperature of the positive electrolyte flowing into the positive electrolyte storage tank from the absorption chiller; temperature sensor VI monitors the temperature of the negative electrolyte flowing into the negative electrolyte storage tank from the absorption chiller.

[0016] Furthermore, a cooling water valve III is provided between the cooling water storage tank and the absorption chiller; the cooling water valve III controls the flow rate of cooling water from the cooling water storage tank into the absorption chiller.

[0017] Furthermore, the positive electrolyte valve I and negative electrolyte valve II control the start and stop of the flow battery power supply and cooling module by controlling the flow of electrolyte; the positive electrolyte drive pump I and negative electrolyte drive pump II are used to control the flow rate of electrolyte; temperature sensors I, II, III, IV, V, and VI are used to detect the temperature of electrolyte; based on the temperature information monitored by temperature sensors I, II, III, IV, V, and VI, it is determined whether the preset temperature threshold is exceeded; if it is exceeded, a corresponding command is issued to adjust the positive electrolyte valve I, negative electrolyte valve II, positive electrolyte drive pump I, and negative electrolyte drive pump II.

[0018] Furthermore, the heat exchanger II is made of corrosion-resistant material and has an internal enhanced heat exchange structure to improve the heat dissipation efficiency between the electrolyte and the data center load.

[0019] Furthermore, the flow battery stack employs highly active electrodes and an optimized flow field structure, and the heated electrolyte enhances the reaction kinetics and output power of the flow battery stack.

[0020] Furthermore, temperature sensors III and IV monitor the electrolyte temperature in real time after the data center load has cooled down. When the electrolyte temperature exceeds a preset first threshold, positive electrolyte drive pump I and negative electrolyte drive pump II adjust the electrolyte flow rate. When the electrolyte temperature exceeds a preset second threshold, positive electrolyte valve I and negative electrolyte valve II immediately close and send the electrolyte to the positive electrolyte storage tank and the negative electrolyte storage tank.

[0021] Furthermore, when the temperature detected by temperature sensor I and temperature sensor II exceeds a preset third threshold, and when the temperature detected by temperature sensor V and temperature sensor VI exceeds a preset fourth threshold, the cooling water drive pump III in the circulating cooling water module is adjusted to increase the flow rate of the cooling water, thereby controlling the temperature of the electrolyte.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] This invention uses the electrolyte of a flow battery as both a cooling and power supply medium. The electrolyte absorbs heat from the data center load via a heat exchanger and then enters the battery stack to generate electricity. The heated electrolyte enhances reaction kinetics and output power. Combined with an absorption chiller and a circulating cooling water module, it achieves cascaded waste heat recovery and electrolyte circulation cooling. Multiple temperature sensors monitor and adjust the drive pump flow rate and electrolyte valve opening / closing in real time, ensuring precise temperature control and system safety. This invention solves the problems of low heat dissipation efficiency, inability to recover waste heat, independent power supply and cooling systems, high overall energy consumption, and low energy utilization in traditional data centers. It achieves coordinated operation of power supply and cooling, significantly reducing energy consumption, improving energy utilization and system stability, and is suitable for the needs of high-density, high-computing-power data centers. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the integrated power supply and cooling system for data centers based on flow batteries according to the present invention.

[0026] Among them, 1-flow battery power supply cooling module, 2-circulating cooling water module, 3-positive electrolyte storage tank, 4-negative electrolyte storage tank, 5-positive electrolyte valve I, 6-negative electrolyte valve II, 7-positive electrolyte drive pump I, 8-negative electrolyte drive pump II, 9-heat exchanger I, 10-temperature sensor I, 11-temperature sensor II, 12-temperature sensor III, 13-temperature sensor IV, 14-flow battery stack, 15-absorption chiller, 16-temperature sensor V, 17-temperature sensor VI, 18-data center load, 19-heat exchanger II, 20-DC / DC converter, 21-power grid; 22-cooling water storage tank, 23-cooling water valve III, 24-cooling water drive pump III. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention 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, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 the present invention according to the specific circumstances.

[0033] The present invention will now be described in further detail with reference to the accompanying drawings:

[0034] See Figure 1This invention discloses a data center power supply and cooling integrated system based on flow batteries, including: a flow battery power supply and cooling module 1 and a circulating cooling water module 2; the flow battery power supply and cooling module 1 includes a positive electrode electrolyte storage tank 3, a negative electrode electrolyte storage tank 4, a drive pump, a flow battery stack 14, an absorption chiller 15, a data center load 18, a heat exchanger II 19, a DC / DC converter 20 and a power grid 21;

[0035] The data center load 18 is tightly connected to the heat exchanger II 19. The low-temperature electrolyte output from the positive electrolyte storage tank 3 and the negative electrolyte storage tank 4 is transported to the heat exchanger II 19 by a drive pump. After absorbing the heat of the data center load 18, the low-temperature electrolyte flows into the flow battery stack 14 to generate electricity. The electrical energy is supplied to the data center load 18 via the DC / DC converter 20 and is combined with the power grid 21 for complementary power supply. After the reaction, the high-temperature electrolyte enters the absorption chiller 15 to release waste heat. The absorption chiller 15 cools the high-temperature electrolyte. After cooling, the electrolyte flows back to the positive electrolyte storage tank 3 and the negative electrolyte storage tank 4.

[0036] The circulating cooling water module 2 includes: a cooling water storage tank 22, a cooling water drive pump III 24, and a heat exchanger I 9; the cooling water in the cooling water storage tank 22 flows into the absorption chiller 15, cools the absorption chiller 15, and then flows into the heat exchanger I 9 via the cooling water drive pump III 24 to pre-cool the electrolyte that is about to enter the data center load 18. After cooling, the cooling water flows back to the storage tank 22.

[0037] The driving pumps include a positive electrolyte driving pump I7 and a negative electrolyte driving pump II8; the positive electrolyte driving pump I7 is connected to the positive electrolyte storage tank 3; the negative electrolyte driving pump II8 is connected to the negative electrolyte storage tank 4; the positive electrolyte driving pump I7 and the negative electrolyte driving pump II8 are connected to a heat exchanger I9; the heat exchanger I9 pre-cools the low-temperature electrolyte before it flows into the heat exchanger II9.

[0038] A positive electrolyte valve I5 is provided between the positive electrolyte driving pump I7 and the positive electrolyte storage tank 3; a negative electrolyte valve II6 is provided between the negative electrolyte driving pump II8 and the negative electrolyte storage tank 4.

[0039] Temperature sensor I10 and temperature sensor II11 are provided between heat exchanger I9 and heat exchanger II19; temperature sensor I10 is used to detect the temperature of the negative electrode electrolyte flowing from heat exchanger I9 into heat exchanger II19; temperature sensor II11 is used to detect the temperature of the positive electrode electrolyte flowing from heat exchanger I9 into heat exchanger II19.

[0040] Temperature sensor III12 and temperature sensor IV13 are provided between heat exchanger II19 and flow battery stack 14; temperature sensor III12 and temperature sensor IV13 are used to monitor the temperature of positive electrode electrolyte and negative electrode electrolyte after heat dissipation, respectively.

[0041] Temperature sensor V16 and temperature sensor VI17 are respectively installed between the absorption chiller 15 and the positive electrolyte storage tank 3 and the negative electrolyte storage tank 4; temperature sensor V16 monitors the temperature of the positive electrolyte flowing into the positive electrolyte storage tank 3 from the absorption chiller 15; temperature sensor VI17 monitors the temperature of the negative electrolyte flowing into the negative electrolyte storage tank 4 from the absorption chiller 15.

[0042] A cooling water valve III 23 is provided between the cooling water storage tank 22 and the absorption chiller 15; the cooling water valve III 23 controls the flow rate of cooling water from the cooling water storage tank 22 into the absorption chiller 15.

[0043] The positive electrolyte valve I5 and negative electrolyte valve II6 control the start and stop of the flow battery power supply and cooling module 1 by controlling the flow of electrolyte; the positive electrolyte drive pump I7 and negative electrolyte drive pump II8 are used to control the flow rate of electrolyte; temperature sensors I10, II11, III12, IV13, V16, and VI17 are used to detect the temperature of electrolyte; based on the temperature information monitored by temperature sensors I10, II11, III12, IV13, V16, and VI17, it is determined whether the preset temperature threshold is exceeded; if it is exceeded, a corresponding command is issued to adjust the positive electrolyte valve I5, negative electrolyte valve II6, positive electrolyte drive pump I7, and negative electrolyte drive pump II8.

[0044] The heat exchanger II19 is made of corrosion-resistant material and has an internal enhanced heat exchange structure to improve the heat dissipation efficiency between the electrolyte and the data center load 18.

[0045] The flow battery stack 14 employs highly active electrodes and an optimized flow field structure. The heated electrolyte enhances the reaction kinetics and output power of the flow battery stack 14.

[0046] Temperature sensors III12 and IV13 monitor the electrolyte temperature after the data center load 18 has cooled down in real time. When the electrolyte temperature exceeds the preset first threshold, the positive electrolyte drive pump I7 and the negative electrolyte drive pump II8 adjust the electrolyte flow rate. When the electrolyte temperature exceeds the preset second threshold, the positive electrolyte valve I5 and the negative electrolyte valve II6 immediately close and send the electrolyte to the positive electrolyte storage tank 3 and the negative electrolyte storage tank 4.

[0047] When the temperature detected by temperature sensor I10 and temperature sensor II11 exceeds the preset third threshold, and when the temperature detected by temperature sensor V16 and temperature sensor VI17 exceeds the preset fourth threshold, the cooling water drive pump III24 in the circulating cooling water module 2 is adjusted to increase the flow rate of cooling water, thereby controlling the temperature of the electrolyte.

[0048] Example:

[0049] This invention discloses a data center power supply and cooling integrated system based on a flow battery, comprising: electrolytes in a positive electrolyte storage tank 3 and a negative electrolyte storage tank 4, driven by a positive electrolyte driving pump I 7 and a negative electrolyte driving pump II 8, entering a flow battery stack 14 to undergo a redox reaction and generate electrical energy. The electrical energy is then directly supplied to the data center load 18 after passing through a DC / DC converter 20. Simultaneously, electricity is purchased from the power grid 21 according to the actual power demand of the load and the power generation of the flow battery. The electrolyte system can be vanadium-based, zinc-bromine, or polymetallic oxyhydrochloric acid, etc. This example uses a vanadium-based system for illustration.

[0050] Once the power requirements of data center load 18 are met, the vanadium electrolyte is cooled by heat exchanger II 19. The heat exchanger material must possess excellent corrosion resistance to prevent electrolyte leakage from jeopardizing the data center's safety. Furthermore, the heat dissipation channels within the heat exchanger can employ advanced geometric configurations such as needle / columnar fin arrays and topology-optimized structures to expand the specific surface area and enhance flow disturbance, thereby significantly improving convective heat transfer efficiency.

[0051] Next, temperature sensors III 12 and IV 13 are used to monitor the electrolyte temperature after the data center load 18 has cooled down in real time to confirm that the vanadium electrolyte temperature is within the operating temperature range of the flow battery. If the temperature is too high, the flow rate of the electrolyte needs to be adjusted by positive electrolyte drive pump I 7 and negative electrolyte drive pump II 8. When the electrolyte temperature exceeds a certain upper limit, positive electrolyte valve I 5 and negative electrolyte valve II 6 are immediately closed to send the electrolyte to the storage tank, thereby stopping the operation of the flow battery power supply cooling module 1. The upper limit of the vanadium electrolyte's operating temperature is 40℃, which can be increased to 55℃ when additives are added to the electrolyte.

[0052] After the high-temperature electrolyte enters the battery stack 14, its increased temperature effectively enhances the kinetic rate of the electrochemical reaction and reduces activation polarization, thereby resulting in higher battery output power and energy efficiency under the same conditions compared to normal temperature operation. At this point, the amount of electricity purchased from the grid 21 can be reduced based on actual conditions, thus achieving preliminary utilization of waste heat and improving the overall system's economic efficiency.

[0053] Next, the high-temperature electrolyte flows through the absorption chiller 15, using the excess heat to drive the chiller to generate low-temperature cooling water, thereby achieving cascade utilization of waste heat and improving the energy efficiency of the entire system. After the electrolyte flows out of the absorption chiller, it still needs to be temperature-detected by temperature sensor V 16 and temperature sensor VI 17, and finally flows into the positive electrode electrolyte storage tank 3 and the negative electrode electrolyte storage tank 4.

[0054] The cooling water in the circulating cooling water module 2 is driven by pump Ⅲ 24 from the cooling water storage tank 22 into the absorption chiller 15 for cooling. The low-temperature cooling water further enters the heat exchanger Ⅰ 9 to pre-cool the electrolyte flowing back to the data center, and finally re-enters the cooling water storage tank 22.

[0055] After being cooled, the vanadium electrolyte is used to cool the data center load 4 again after temperature detection by temperature sensor I 10 and temperature sensor II 11.

[0056] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A liquid flow battery based data center power and cooling integrated system, characterized in that, include: The flow battery power supply and cooling module (1) and the circulating cooling water module (2) are included; the flow battery power supply and cooling module (1) includes a positive electrolyte storage tank (3), a negative electrolyte storage tank (4), a drive pump, a flow battery stack (14), an absorption chiller (15), a data center load (18), a heat exchanger II (19), a DC / DC converter (20), and a power grid (21). The data center load (18) is closely connected to the heat exchanger II (19); the low-temperature electrolyte output from the positive electrolyte storage tank (3) and the negative electrolyte storage tank (4) is transported to the heat exchanger II (19) by a drive pump. After absorbing the heat of the data center load (18), the low-temperature electrolyte flows into the flow battery stack (14) to generate electricity. The electrical energy is supplied to the data center load (18) through the DC / DC converter (20) and combined with the power grid (21) for complementary power supply. After the reaction, the high-temperature electrolyte enters the absorption chiller (15) to release the waste heat. The absorption chiller (15) cools down the high-temperature electrolyte. After cooling, the electrolyte flows back to the positive electrolyte storage tank (3) and the negative electrolyte storage tank (4). The circulating cooling water module (2) includes: a cooling water storage tank (22), a cooling water drive pump III (24) and a heat exchanger I (9); the cooling water in the cooling water storage tank (22) flows into the absorption chiller (15), cools the absorption chiller (15) and then flows into the heat exchanger I (9) via the cooling water drive pump III (24) to pre-cool the electrolyte that is about to enter the data center load (18). After cooling, the cooling water flows back to the storage tank (22).

2. The liquid flow battery based data center power and cooling integrated system of claim 1, wherein, The driving pumps include a positive electrolyte driving pump I (7) and a negative electrolyte driving pump II (8); the positive electrolyte driving pump I (7) is connected to the positive electrolyte storage tank (3); the negative electrolyte driving pump II (8) is connected to the negative electrolyte storage tank (4); the positive electrolyte driving pump I (7) and the negative electrolyte driving pump II (8) are connected to heat exchanger I (9); the heat exchanger I (9) pre-cools the low-temperature electrolyte before it flows into heat exchanger II (19).

3. The liquid flow battery based data center power and cooling integrated system of claim 2, wherein, A positive electrolyte valve I (5) is provided between the positive electrolyte driving pump I (7) and the positive electrolyte storage tank (3); a negative electrolyte valve II (6) is provided between the negative electrolyte driving pump II (8) and the negative electrolyte storage tank (4). Temperature sensor I (10) and temperature sensor II (11) are provided between heat exchanger I (9) and heat exchanger II (19); temperature sensor I (10) is used to detect the temperature of the negative electrode electrolyte flowing from heat exchanger I (9) into heat exchanger II (19); temperature sensor II (11) is used to detect the temperature of the positive electrode electrolyte flowing from heat exchanger I (9) into heat exchanger II (19); Temperature sensor III (12) and temperature sensor IV (13) are provided between heat exchanger II (19) and flow battery stack (14); temperature sensor III (12) and temperature sensor IV (13) are used to monitor the temperature of positive electrode electrolyte and negative electrode electrolyte after heat dissipation, respectively. Temperature sensor V (16) and temperature sensor VI (17) are respectively installed between the absorption chiller (15) and the positive electrolyte storage tank (3) and the negative electrolyte storage tank (4); the temperature sensor V (16) monitors the temperature of the positive electrolyte flowing from the absorption chiller (15) into the positive electrolyte storage tank (3); the temperature sensor VI (17) monitors the temperature of the negative electrolyte flowing from the absorption chiller (15) into the negative electrolyte storage tank (4); A cooling water valve III (23) is provided between the cooling water storage tank (22) and the absorption chiller (15); the cooling water valve III (23) controls the flow rate of cooling water in the cooling water storage tank (22) into the absorption chiller (15).

4. The liquid flow battery based data center power and cooling integrated system of claim 3, wherein, The positive electrode electrolyte valve I (5) and negative electrode electrolyte valve II (6) control the start and stop of the flow battery power supply and cooling module (1) by controlling the flow of electrolyte; the positive electrode electrolyte drive pump I (7) and negative electrode electrolyte drive pump II (8) are used to control the flow rate of electrolyte; temperature sensor I (10), temperature sensor II (11), temperature sensor III (12), temperature sensor IV (13), temperature sensor V (16), and temperature sensor VI (17) are used to detect the temperature of electrolyte; based on the temperature information monitored by temperature sensor I (10), temperature sensor II (11), temperature sensor III (12), temperature sensor IV (13), temperature sensor V (16), and temperature sensor VI (17), it is determined whether the preset temperature threshold is exceeded. If the value exceeds the limit, the corresponding instructions will be issued to adjust the positive electrolyte valve I (5), the negative electrolyte valve II (6), the positive electrolyte drive pump I (7), and the negative electrolyte drive pump II (8).

5. The liquid flow battery based data center power and cooling integrated system of claim 4, wherein, The heat exchanger II (19) is made of corrosion-resistant material and has an internal enhanced heat exchange structure to improve the heat dissipation efficiency between the electrolyte and the data center load (18).

6. The liquid flow battery based data center power and cooling integrated system of claim 5, wherein, The flow battery stack (14) uses highly active electrodes and an optimized flow field structure. The heated electrolyte enhances the reaction kinetics and output power of the flow battery stack (14).

7. The liquid flow battery based data center power and cooling integrated system of claim 6, wherein, The temperature sensor III (12) and temperature sensor IV (13) detect the electrolyte temperature after the data center load (18) is cooled in real time. When the electrolyte temperature exceeds the preset first threshold, the positive electrolyte driving pump I (7) and the negative electrolyte driving pump II (8) adjust the flow rate of the electrolyte. When the electrolyte temperature exceeds the preset second threshold, the positive electrolyte valve I (5) and the negative electrolyte valve II (6) are immediately closed, and the electrolyte is sent to the positive electrolyte storage tank (3) and the negative electrolyte storage tank (4).

8. The liquid flow battery based data center power and cooling integrated system of claim 7, wherein, When the temperature detected by temperature sensor I (10) and temperature sensor II (11) exceeds the preset third threshold, and when the temperature detected by temperature sensor V (16) and temperature sensor VI (17) exceeds the preset fourth threshold, the cooling water drive pump III (24) in the circulating cooling water module (2) is adjusted to increase the flow rate of cooling water, thereby controlling the temperature of the electrolyte.

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