Compressed air energy storage exhaust air cooling utilizes coupling intelligent calculation center system and operation method

Abstract

This invention discloses a compressed air energy storage exhaust air cooling system coupled with an intelligent computing center and its operation method, belonging to the field of compressed air energy storage technology. The system includes a compressor, an air storage device, an expander, a preheater, and an intelligent computing center. The expander includes a pre-expansion section and a final expansion section. The exhaust port of the pre-expansion section is connected to the inlet of the final expansion section via a first flow channel of the preheater. The exhaust port of the final expansion section is connected to the inlet of the intelligent computing center, and the outlet of the intelligent computing center is connected to a second flow channel of the preheater. During energy release, the exhaust air from the pre-expansion section exchanges heat with the hot air discharged from the intelligent computing center in the preheater, and then enters the final expansion section to perform work. The low-temperature air discharged from the final expansion section enters the intelligent computing center for air cooling. After absorbing heat, the discharged hot air then enters the preheater to recover heat. This invention directly uses the low-temperature exhaust air from the final stage of the expander for cooling the intelligent computing center, eliminating the need for additional cooling energy consumption, and recovers the heat dissipation from the intelligent computing center to preheat the compressed air, improving system energy efficiency and achieving energy saving and emission reduction.

Description

Technical Field

[0001] This invention belongs to the field of compressed air energy storage technology, and specifically discloses a compressed air energy storage exhaust air cooling utilization coupled intelligent computing center system and its operation method. Background Technology

[0002] With the rapid development of AI technology, intelligent computing centers are undertaking increasingly numerous and complex tasks. The failure rate of electronic components increases exponentially with rising operating temperature; for every 10°C increase in temperature of a single semiconductor component, its reliability decreases by approximately 50%. Therefore, cooling has become a key technology for maintaining the stable operation of intelligent computing centers. Air cooling is one of the common cooling methods for intelligent computing centers. The national standard GB 50174-2017 "Design Code for Data Centers" requires the temperature of the cold aisle or cabinet air intake area of ​​the air-cooled system to be 18°C ​​to 27°C. Considering the air resistance of filters and ducts, the mainstream air-cooling solution is designed with an inlet static pressure of +30 to +80 Pa (gauge pressure).

[0003] Compressed air energy storage systems (CAES) have significant advantages such as large storage capacity, high safety, and environmental friendliness, making them one of the core means of renewable energy consumption. The final stage exhaust pressure of the expander in mainstream domestic CAES systems is a slightly positive pressure, slightly higher than atmospheric pressure, and the exhaust temperature can be adjusted through control, offering a relatively flexible temperature range.

[0004] By coupling the compressed air energy storage system with the intelligent computing center, the low-temperature, slightly positive-pressure exhaust gas from the final stage of the expander, which was originally directly discharged into the atmosphere, is introduced into the air-cooling system of the intelligent computing center. This provides the intelligent computing center with cooling air that is suitable for both temperature and pressure and has high safety. The cooling air discharged from the intelligent computing center then enters the preheater before the expander to preheat the compressed air that is about to do work before being discharged into the atmosphere. This not only realizes the effective utilization of the exhaust air cooling of the CAES system and reduces the operating temperature of the intelligent computing center equipment, but also recovers and reuses the heat dissipation of the intelligent computing center, thus taking into account both the operational performance and energy-saving effect of the intelligent computing center. Summary of the Invention

[0005] To address the aforementioned issues, this invention addresses the shortcomings of existing technologies, such as the direct waste of cold and pressure energy from the exhaust gas of the expander in compressed air energy storage systems, high energy consumption in intelligent computing center air-cooling systems, and the lack of resource recovery from heat dissipation during operation. It provides a compressed air energy storage exhaust gas air-cooling system coupled with an intelligent computing center system and its operation method. The expander exhaust gas is used as the cold source for air cooling in the intelligent computing center, while simultaneously recovering heat from the intelligent computing center to preheat the expanded air, achieving synergistic utilization of cold, heat, and electrical energy, reducing the operating costs of the intelligent computing center, and improving the overall energy efficiency of the system.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] In one aspect, the present invention provides a compressed air energy storage exhaust air cooling utilization coupled with a smart computing center system, including a compressor, an air storage device, an expander, a preheater, and a smart computing center; The exhaust port of the compressor is connected to the inlet of the gas storage device, and the exhaust port of the gas storage device is connected to the inlet of the expander. The expander includes at least one pre-expansion section and a final expansion section; The exhaust port of the pre-expansion section is connected to the inlet of the first flow channel of the preheater, and the outlet of the first flow channel of the preheater is connected to the inlet of the final expansion section. The exhaust port of the final expansion stage is connected to the air inlet of the intelligent computing center; The air outlet of the intelligent computing center is connected to the inlet of the second flow channel of the preheater, and the outlet of the second flow channel of the preheater is connected to the atmosphere. The first flow channel and the second flow channel are arranged adjacent to each other so that the medium flowing through the first flow channel and the medium flowing through the second flow channel can exchange heat.

[0008] Optionally, a filter is also included, disposed before the air inlet of the compressor, for filtering the air entering the compressor.

[0009] Optionally, the compressor includes a multi-stage compression unit with coolers between adjacent stages; the system also includes a cold tank and a hot tank, the outlet of the cold tank being connected to the inlet of the cooler, and the inlet of the hot tank being connected to the outlet of the cooler.

[0010] Optionally, the pre-expansion section includes at least one expansion unit, and each expansion unit is provided with a heater in front of it; the final expansion section is provided with a final heater in front of it; the system also includes a cold tank and a hot tank, as well as a temperature control valve, wherein the outlet of the hot tank is connected to the inlet of each of the heaters and the final heater, and the inlet of the cold tank is connected to the outlet of each of the heaters and the final heater. The temperature control valve is installed on the inlet pipe of the final stage heater and is used to regulate the flow rate of hot water entering the final stage heater.

[0011] Optionally, the exhaust port of the final expansion section is connected to the atmosphere through a venting pipe, and a venting valve is provided on the venting pipe; The vent valve is an adjustable valve.

[0012] Optionally, a check valve is provided between the exhaust port of the final expansion stage and the air inlet of the intelligent computing center.

[0013] Optionally, the system includes an electric motor and a generator, the electric motor being driven by the compressor for driving the compressor; the generator being driven by the expander for generating electricity. The generator is electrically connected to the intelligent computing center and is used to supply power to the intelligent computing center; It also includes a power grid, a first circuit breaker, a second circuit breaker, and a third circuit breaker; the motor is connected to the power grid through the first circuit breaker, the generator is electrically connected to the intelligent computing center through the second circuit breaker, and the intelligent computing center is connected to the power grid through the third circuit breaker.

[0014] In another aspect, the present invention provides an operation method for a compressed air energy storage exhaust air cooling coupled with a smart computing center, employing a system as described in any one of the first aspects, including an energy storage operation mode and an energy release operation mode. In the energy storage operation mode, the compressor is driven by external power to compress air and store it in the air storage device; In the energy release operation mode, the compressed air in the gas storage device enters the expander and flows sequentially through the pre-expansion section and the final expansion section of the expander to expand and do work. The air discharged from the pre-expansion section enters the first flow channel of the preheater, exchanges heat with the hot air from the air outlet of the intelligent computing center, and enters the final expansion section after being heated. Part of the air discharged from the final expansion section enters the air inlet of the intelligent computing center to cool the intelligent computing center. The air that has exchanged heat in the intelligent computing center is discharged from the air outlet and enters the second flow channel of the preheater to heat the air in the first flow channel, and then is discharged into the atmosphere.

[0015] Optionally, in the energy release operation mode, the expander drives the generator to generate electricity, and the generator supplies power to the intelligent computing center; In the energy storage operation mode, the intelligent computing center draws power from the power grid; the external power source is an electric motor, which is powered by the power grid.

[0016] Optionally, in the energy storage operation mode, the cooling water in the cold tank flows through the compressor's cooler to absorb the heat of compression before flowing into the hot tank; in the energy release operation mode, the hot water in the hot tank flows through the expander's heater and the final stage heater to release heat before flowing back to the cold tank.

[0017] Compared with the closest existing technology, the present invention has the following advantages: This invention proposes a compressed air energy storage exhaust air cooling utilization coupled intelligent computing center system and its operation method. By connecting the exhaust port of the final stage expansion section with the air inlet of the intelligent computing center, the low-temperature exhaust gas of the final stage of the expander is directly introduced into the air cooling system of the intelligent computing center as cooling air. There is no need to consume additional electrical energy to drive refrigeration equipment to generate cold energy, which significantly reduces the cooling energy consumption of the intelligent computing center and realizes the resource utilization of expansion waste cold.

[0018] This invention connects the air outlet of the intelligent computing center to the second flow channel of the preheater, and the first flow channel of the preheater to the exhaust port of the pre-expansion section and the air inlet of the final expansion section. This allows the hot air discharged from the intelligent computing center to heat the compressed air that is about to enter the final expansion section in the preheater. The heat brought out from the intelligent computing center is recovered and utilized in the expansion work process, which improves the work capacity of the compressed air and thus improves the overall power generation efficiency and energy utilization rate of the system.

[0019] This invention constructs a two-way energy coupling closed loop of "expansion exhaust cooling the intelligent computing center—intelligent computing center heat dissipation preheating of the expansion working fluid": on the one hand, the low-temperature exhaust from the final expansion stage provides a cold source for the intelligent computing center; on the other hand, the heat dissipation from the operation of the intelligent computing center is recovered through a preheater and used to preheat the compressed air inside the expander. This synergistic cooperation of cooling and waste heat recovery simultaneously meets the cooling requirements of the intelligent computing center and the preheating requirements of the expansion working fluid without increasing additional energy consumption, achieving the integration of cooling and energy saving.

[0020] The exhaust gas from the final stage of the expander in this invention is a slightly positive pressure, low-temperature gas with a pressure slightly higher than atmospheric pressure. This naturally matches the requirements of mainstream intelligent computing center air-cooling systems for inlet static pressure and inlet temperature. There is no need to add additional fan pressurization or temperature regulation devices, which can directly provide suitable cooling air for intelligent computing center air-cooling systems, reducing system modification and investment costs. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 This is a schematic diagram of the structure of a compressed air energy storage exhaust air cooling system coupled with a smart computing center, provided by an embodiment of the present invention. Figure 2 This is a flowchart of the operation method of the compressed air energy storage exhaust air cooling coupled with the intelligent computing center provided in the embodiment of the present invention; In the diagram: 1. Compressor; 2. Expander; 3. Gas storage device; 4. Filter; 5. Preheater; 6. Inlet valve; 7. Exhaust valve; 8. Vent valve; 9. Cold tank; 10. Hot tank; 11. Temperature control valve; 12. Electric motor; 13. Generator; 14. First circuit breaker; 15. Second circuit breaker; 16. Third circuit breaker; 17. Intelligent computing center; 18. Power grid; 19. Check valve. Detailed Implementation

[0023] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore merely examples, and should not be construed as limiting the scope of protection of the present invention.

[0024] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0025] This application provides a compressed air energy storage exhaust cooling system coupled with a smart computing center system and its operation method. Specifically, it relates to a compressed air energy storage system exhaust cooling system coupled with a smart computing center system and its operation method, which can utilize the exhaust gas from the smart computing center to perform air cooling and recover and utilize the heat dissipation energy of the smart computing center. The embodiments of the present invention will be described below with reference to the accompanying drawings.

[0026] Example 1: Example 1 of the present invention provides a compressed air energy storage exhaust air cooling system coupled with an intelligent computing center system, such as... Figure 1 As shown, it includes a compressor 1, a gas storage device 3, an expander 2, a preheater 5, and a computing center 17. The exhaust port of the compressor 1 is connected to the inlet of the gas storage device 3, and the exhaust port of the gas storage device 3 is connected to the inlet of the expander 2. The expander 2 includes at least one pre-expansion section and one final expansion section; the exhaust port of the pre-expansion section is connected to the inlet of the first flow channel of the preheater 5, and the outlet of the first flow channel of the preheater 5 is connected to the inlet of the final expansion section; the exhaust port of the final expansion section is connected to the inlet of the computing center 17; the outlet of the computing center 17 is connected to the inlet of the second flow channel of the preheater 5, and the outlet of the second flow channel of the preheater 5 is connected to the atmosphere; heat exchange can occur between the first flow channel and the second flow channel, i.e., the preheater 5 is a gas-to-gas heat exchanger, with its first and second flow channels arranged adjacent to each other, isolated from each other but capable of transferring heat.

[0027] As a further improvement, the system also includes a filter 4, which is located before the air inlet of the compressor 1 to filter the air entering the compressor 1, so as to protect the internal components of the compressor and ensure air quality.

[0028] Preferably, the compressor 1 includes a multi-stage compression unit with coolers between adjacent stages; the system also includes a cold tank 9 and a hot tank 10, with the outlet of the cold tank 9 connected to the inlet of the cooler, and the inlet of the hot tank 10 connected to the outlet of the cooler, thus forming a cooling cycle. Simultaneously, the pre-expansion section includes at least one expansion unit, with a heater preceding each expansion unit; a final-stage heater is preceding the final-stage expansion section; the outlet of the hot tank 10 is connected to the inlet of each heater and the final-stage heater, and the inlet of the cold tank 9 is connected to the outlet of each heater and the final-stage heater, forming a heating cycle. This configuration effectively recovers compression heat and uses it for heating the working fluid before expansion, improving system efficiency.

[0029] Furthermore, in order to precisely control the inlet and outlet temperatures of the final expansion stage, the system also includes a temperature control valve 11, which is installed on the inlet pipe of the final heater to regulate the flow rate of hot water entering the final heater.

[0030] The exhaust port of the final expansion stage is also connected to the atmosphere through a vent pipe, which is equipped with a vent valve 8. Preferably, the vent valve 8 is an adjustable valve to adjust the amount of air discharged into the atmosphere according to the cooling requirements of the intelligent computing center. A check valve 19 is installed between the exhaust port of the final expansion stage and the air inlet of the intelligent computing center 17 to prevent gas from flowing back into the expander from the intelligent computing center, ensuring the safe operation of the system.

[0031] In terms of drive and power connection, the system also includes a motor 12 and a generator 13. The motor 12 is driven by the compressor 1; the generator 13 is driven by the expander 2 and generates electricity. The generator 13 is electrically connected to the intelligent computing center 17, thus directly supplying power to the intelligent computing center 17 in the energy release operation mode. The system can also be connected to the power grid 18 and is equipped with a first circuit breaker 14, a second circuit breaker 15, and a third circuit breaker 16: the motor 12 is connected to the power grid 18 through the first circuit breaker 14, the generator 13 is connected to the intelligent computing center 17 through the second circuit breaker 15, and the intelligent computing center 17 is connected to the power grid 18 through the third circuit breaker 16. By switching the circuit breakers, operating modes such as grid connection and independent power supply can be flexibly realized.

[0032] In addition, an exhaust valve 7 is installed on the inlet pipe of the gas storage device 3, and an intake valve 6 is installed on the outlet pipe to control the filling and releasing of compressed air.

[0033] Figure 1 The document provides a complete system example that includes all the details mentioned above: The air inlet of filter 4 is connected to the atmosphere; compressor 1 is composed of filter 4 and several compression units connected in series, each compression unit including a compression section, a cooler and a cold water valve; the air inlet of compressor 1 is connected to the exhaust port of filter 4, and the exhaust port is connected to the inlet of gas storage device 3 through exhaust valve 7; expander 2 is composed of a pre-expansion section and a final expansion section connected in series, each expansion unit of the pre-expansion section includes an expansion section, a heater and a hot water valve, and the final expansion section includes a final heater, a final expansion section and a temperature control valve 11; the air inlet of expander 2 is connected to the exhaust port of gas storage device 3 through air inlet valve 6; the exhaust port of the pre-expansion section is connected to the inlet of the first flow channel of preheater 5, the outlet of the first flow channel is connected to the inlet of the final heater, and the outlet of the final heater is connected to the inlet of the final expansion section; the exhaust port of the final expansion section is connected to the air inlet of intelligent computing center 17 through check valve 19, and is also connected to the atmosphere through vent valve 8; the air outlet of intelligent computing center 17 is connected to the inlet of the second flow channel of preheater 5, and the outlet of the second flow channel is open to the atmosphere. The outlet of cold tank 9 is connected to the inlet of the cooler of each compression unit, and the inlet is connected to the outlet of each heater and the final stage heater; the outlet of hot tank 10 is connected to the inlet of each heater and the final stage heater, and the inlet is connected to the outlet of the cooler of each compression unit. Electric motor 12 is driven by compressor 1, and generator 13 is driven by expander 2.

[0034] Example 2: This Example 2 provides an operation method for a compressed air energy storage exhaust air cooling coupled with a smart computing center. This method can be implemented using any of the above systems, including an energy storage operation mode and an energy release operation mode.

[0035] In the energy storage operation mode, S101 is driven by an external power source to compress air and store it in the air storage device 3.

[0036] Specifically, the intelligent computing center 17 draws power from the power grid 18 through the third circuit breaker 16 to maintain normal operation. Closing the first circuit breaker 14 opens the exhaust valve 7, starting the motor 12 to drive the compressor 1. Outside air enters the compressor 1 through the filter 4 and is compressed by the multi-stage compression unit. During compression, the cooling water in the cold tank 9 flows through the coolers of each compression unit, absorbing the heat of compression and increasing in temperature before being sent to the hot tank 10 for storage. High-pressure compressed air enters the air storage device 3 through the exhaust valve 7 for storage. By adjusting the flow rate of the cooling water in the coolers of each compression unit, the exhaust temperature after each stage of compression can be controlled.

[0037] In the energy release operation mode, S102, the compressed air in the gas storage device enters the expander and flows sequentially through the pre-expansion section and the final expansion section of the expander to expand and do work; the air discharged from the pre-expansion section enters the first flow channel of the preheater, exchanges heat with the hot air from the air outlet of the intelligent computing center, and enters the final expansion section after being heated; part of the air discharged from the final expansion section enters the air inlet of the intelligent computing center to cool the intelligent computing center; the air that has exchanged heat in the intelligent computing center is discharged from the air outlet and enters the second flow channel of the preheater to heat the air in the first flow channel, and then is discharged into the atmosphere.

[0038] Specifically, in the energy release operation mode, compressed air in the gas storage device 3 enters the expander 2 through the inlet valve 6, and flows sequentially through the pre-expansion section and the final expansion section to expand and do work. The second circuit breaker 15 is closed and the third circuit breaker 16 is opened, causing the expander 2 to drive the generator 13 to generate electricity and supply power to the intelligent computing center 17. The cooled compressed air discharged from the pre-expansion section enters the first flow channel of the preheater 5, where it exchanges heat with the hot air from the outlet of the intelligent computing center 17. After being heated, it enters the final heater for further heating, and then enters the final expansion section to continue expanding and doing work. The hot water in the hot tank 10 flows through each heater in the pre-expansion section and the final heater, releasing heat and returning to the cold tank 9. At least part of the low-temperature air discharged from the final expansion section enters the air inlet of the intelligent computing center 17 through the check valve 19, where it is used as cooling air; after absorbing heat, it heats up to become hot air, which is discharged from the outlet and enters the second flow channel of the preheater 5, heating the compressed air in the first flow channel before being discharged to the atmosphere from the outlet of the second flow channel. By adjusting the opening of the temperature control valve 11, the flow rate of hot water entering the final stage heater is controlled, thereby controlling the exhaust temperature of the final stage expansion section. By adjusting the opening of the vent valve 8, the amount of low-temperature air directly discharged into the atmosphere is controlled, thus precisely controlling the cooling air volume and pressure entering the air inlet of the intelligent computing center. By coordinating the opening of the temperature control valve 11 and the vent valve 8, precise control of the air inlet and outlet temperatures of the intelligent computing center can be achieved, ensuring the cooling effect.

[0039] When the system starts up, the third circuit breaker 16 can be closed first to ensure that the intelligent computing center 17 is powered by the power grid 18, and then the compressor or expander can be started. When the system stops, the third circuit breaker 16 should be closed first and the second circuit breaker 15 should be opened to switch the intelligent computing center 17 back to the power grid. After the expander 2 stops, the intake valve 6 and the vent valve 8 should be closed to ensure safe operation.

[0040] The above description is merely a preferred embodiment of the present invention and does not limit the scope of protection of the present invention. Any equivalent structural transformations made based on the inventive concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

Claims

1. A compressed air energy storage, exhaust air cooling, and coupled intelligent computing center system, characterized in that, This includes compressors, gas storage devices, expanders, preheaters, and intelligent computing centers; The exhaust port of the compressor is connected to the inlet of the gas storage device, and the exhaust port of the gas storage device is connected to the inlet of the expander. The expander includes at least one pre-expansion section and a final expansion section; The exhaust port of the pre-expansion section is connected to the inlet of the first flow channel of the preheater, and the outlet of the first flow channel of the preheater is connected to the inlet of the final expansion section. The exhaust port of the final expansion stage is connected to the air inlet of the intelligent computing center; The air outlet of the intelligent computing center is connected to the inlet of the second flow channel of the preheater, and the outlet of the second flow channel of the preheater is connected to the atmosphere. The first flow channel and the second flow channel are arranged adjacent to each other so that the medium flowing through the first flow channel and the medium flowing through the second flow channel can exchange heat.

2. The system according to claim 1, characterized in that, It also includes a filter, which is installed before the air inlet of the compressor to filter the air entering the compressor.

3. The system according to claim 1, characterized in that, The compressor includes a multi-stage compression unit with coolers between adjacent stages; the system also includes a cold tank and a hot tank, the outlet of the cold tank being connected to the inlet of the cooler, and the inlet of the hot tank being connected to the outlet of the cooler.

4. The system according to claim 1, characterized in that, The pre-expansion section includes at least one expansion unit, and each expansion unit is provided with a heater in front of it; the final expansion section is provided with a final heater in front of it; the system also includes a cold tank and a hot tank, as well as a temperature control valve, the outlet of the hot tank is connected to the inlet of each of the heaters and the final heater, and the inlet of the cold tank is connected to the outlet of each of the heaters and the final heater. The temperature control valve is installed on the inlet pipe of the final stage heater and is used to regulate the flow rate of hot water entering the final stage heater.

5. The system according to claim 1, characterized in that, The exhaust port of the final expansion section is connected to the atmosphere through a venting pipe, and a venting valve is provided on the venting pipe. The vent valve is an adjustable valve.

6. The system according to claim 1, characterized in that, A check valve is installed between the exhaust port of the final expansion section and the air inlet of the intelligent computing center.

7. The system according to claim 1, characterized in that, The system includes an electric motor and a generator. The electric motor is driven by the compressor and is used to drive the compressor. The generator is driven by the expander and is used to generate electricity. The generator is electrically connected to the intelligent computing center and is used to supply power to the intelligent computing center; It also includes a power grid, a first circuit breaker, a second circuit breaker, and a third circuit breaker; the motor is connected to the power grid through the first circuit breaker, the generator is electrically connected to the intelligent computing center through the second circuit breaker, and the intelligent computing center is connected to the power grid through the third circuit breaker.

8. A method for operating a compressed air energy storage exhaust air-cooled coupled intelligent computing center, employing the system as described in any one of claims 1 to 7, including an energy storage operation mode and an energy release operation mode; In the energy storage operation mode, the compressor is driven by external power to compress air and store it in the air storage device; In the energy release operation mode, the compressed air in the gas storage device enters the expander and flows sequentially through the pre-expansion section and the final expansion section of the expander to expand and do work. The air discharged from the pre-expansion section enters the first flow channel of the preheater, exchanges heat with the hot air from the air outlet of the intelligent computing center, and enters the final expansion section after being heated. Part of the air discharged from the final expansion section enters the air inlet of the intelligent computing center to cool the intelligent computing center. The air that has exchanged heat in the intelligent computing center is discharged from the air outlet and enters the second flow channel of the preheater to heat the air in the first flow channel, and then is discharged into the atmosphere.

9. The method according to claim 8, characterized in that, In the energy release operation mode, the expander drives the generator to generate electricity, and the generator supplies power to the intelligent computing center; In the energy storage operation mode, the intelligent computing center draws power from the power grid; the external power source is an electric motor, which is powered by the power grid.

10. The method according to claim 9, characterized in that, In the energy storage operation mode, the cooling water in the cold tank flows through the compressor's cooler to absorb the heat of compression before flowing into the hot tank; in the energy release operation mode, the hot water in the hot tank flows through the expander's heater and the final stage heater to release heat before flowing back to the cold tank.

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