Intelligent temperature control refrigerating system for data center

Abstract

The utility model relates to an intelligent temperature control refrigerating system for a data center, which comprises a liquid cooling system, an ethylene glycol and water heat exchange system and a pure water replenishing system, the liquid cooling system is connected with a data center server, the liquid cooling system is used for directly absorbing heat generated by the data center server, and the pure water replenishing system is connected with the ethylene glycol and water heat exchange system. The ethylene glycol and water heat exchange system is connected with the liquid cooling system, a branch is further led out of a pipeline connecting the ethylene glycol and water heat exchange system and the liquid cooling system to be connected with the pure water supplementing system, and the ethylene glycol and water heat exchange system is used for conducting heat exchange treatment on ethylene glycol and water. And the pure water replenishing system is used for replenishing water to the liquid cooling system and the ethylene glycol and water heat exchange system, and is also used for replenishing water required for maintaining the stable circulation of ethylene glycol. Compared with the prior art, the cooling efficiency and the energy utilization efficiency of the data center are remarkably improved by optimizing cooling liquid circulation, automatically adjusting the ethylene glycol concentration and accurately controlling the heat exchange process.

Description

Technical Field

[0001] This utility model relates to the field of cooling technology for data centers, and in particular to an intelligent temperature-controlled cooling system for data centers. Background Technology

[0002] Driven by the rapid advancements in artificial intelligence technology, data centers, as the core support for AI computing power, are experiencing unprecedented development opportunities and challenges. The energy consumption and environmental impact of data centers are receiving increasing attention, prompting governments and enterprises to seek ways to improve energy efficiency, adopt renewable energy sources, and implement green and low-carbon operating strategies.

[0003] With the increasing power density of data centers, the demand for air conditioning and cooling is also increasing significantly. Traditional data center air cooling systems use a low-temperature cold source (such as chilled water at 7°C) to first cool the air to saturation (i.e., reach the dew point temperature), then continue cooling and dehumidifying, followed by reheating to bring the air to a supply state for cooling the server racks. However, the entire process suffers from significant energy losses due to heat loss from cooling and dehumidification, resulting in high system investment costs, high operating costs, and high energy consumption. Therefore, traditional air cooling methods can no longer meet the growing heat dissipation demands, prompting new cooling technologies such as liquid cooling to become the focus of research and application. Data center layout and design are also constantly being optimized to improve efficiency and reduce costs, including rack layout, airflow management, and the utilization of natural cooling resources. Utility Model Content

[0004] The purpose of this invention is to provide an intelligent temperature-controlled cooling system for data centers. This system integrates a liquid cooling system, an automatic ethylene glycol solution replenishment system, and an ethylene glycol-water heat exchange system to achieve intelligent temperature control of the data center's mainframes. By optimizing coolant circulation, automatically adjusting the ethylene glycol concentration, and precisely controlling the heat exchange process, this invention significantly improves the cooling efficiency and energy utilization efficiency of data centers.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A smart temperature-controlled cooling system for data centers includes a liquid cooling system, an ethylene glycol-water heat exchange system, and a pure water replenishment system.

[0007] The liquid cooling system is connected to the data center server and is used to directly absorb the heat generated by the data center server.

[0008] The ethylene glycol-water heat exchange system is connected to the liquid cooling system, and a branch line is also led out from the pipeline connecting the ethylene glycol-water heat exchange system and the liquid cooling system to the pure water makeup system.

[0009] The ethylene glycol-water heat exchange system is used for heat exchange between ethylene glycol and water. The pure water replenishment system is used to replenish water to the liquid cooling system and the ethylene glycol-water heat exchange system, and also to replenish the water required to maintain the stable circulation of ethylene glycol.

[0010] In one embodiment of this utility model, the intelligent temperature control cooling system further includes an ethylene glycol replenishment system, which is connected to an ethylene glycol-water heat exchange system. The ethylene glycol replenishment system is used to automatically monitor and replenish the ethylene glycol aqueous solution.

[0011] In one embodiment of this utility model, the intelligent temperature control cooling system further includes a pure water preparation system, which is connected to a pure water replenishment system. The pure water preparation system is used to produce the required pure water from external water and replenish it to the pure water replenishment system.

[0012] In one embodiment of this utility model, the intelligent temperature-controlled refrigeration system further includes an ethylene glycol wet air-cooling system, which is connected to an ethylene glycol-water heat exchange system. The pure water makeup system is also connected to the ethylene glycol wet air-cooling system.

[0013] The ethylene glycol wet air cooling system is used to ensure the stable operation of the intelligent temperature-controlled cooling system under different climatic conditions, and the pure water replenishment system discharges the heat generated by the server into the environment by circulating an ethylene glycol aqueous solution.

[0014] In one embodiment of this utility model, the ethylene glycol replenishment system is simultaneously connected to both an ethylene glycol wet air cooling system and an ethylene glycol-water heat exchange system.

[0015] In one embodiment of this utility model, the liquid cooling system includes a liquid cooling plate, a cooling water circulation pipe and a cabinet. The liquid cooling plate is fixedly installed at the heat source of the data center server. The low-temperature hot water flowing into the cooling water circulation pipe passes through the liquid cooling plate and several cabinets, and absorbs the heat generated by the liquid cooling plate and several cabinets. The heated high-temperature hot water then flows into the ethylene glycol and water heat exchange system.

[0016] In this invention, the heat generated by the data center server is not only transferred to the liquid cooling plate, but also radiated to the server rack, making full use of the data center's own heat dissipation components.

[0017] In one embodiment of this utility model, the cooling water circulation pipeline includes a first water supply pipeline and a first water return pipeline. The first water supply pipeline is connected to the liquid cooling plate and several cabinets. The first water return pipeline is also connected to the liquid cooling plate and several cabinets. The first water supply pipeline is used to flow 40°C low-temperature hot water into the liquid cooling plate and several cabinets. The first water return pipeline is used to flow 48°C high-temperature hot water into the ethylene glycol and water heat exchange system.

[0018] In one embodiment of this utility model, a plurality of pumps are provided on the first water supply pipe and the first water return pipe, and the pumps are used to drive water to circulate in the liquid cooling plate and the cabinet;

[0019] Sensors are installed on the liquid cooling plate and the cabinet.

[0020] As a preferred technical solution, the liquid cooling system further includes a coolant storage and distribution unit, which is connected to the pump, sensor, liquid cooling plate and cabinet. The coolant storage and distribution unit is used to control the circulation of coolant in the system.

[0021] In one embodiment of this invention, the ethylene glycol-water heat exchange system includes a hot-side pipe, an ethylene glycol circulation pipe, and a heat exchanger. The hot-side pipe is connected to the cooling water circulation pipe in the liquid cooling system.

[0022] The heat exchanger is connected to the hot-side pipe and the ethylene glycol circulation pipe at its left and right ends, respectively. The high-temperature hot water flowing out of the liquid cooling system enters the heat exchanger through the hot-side pipe and exchanges heat with the ethylene glycol solution inside the heat exchanger. The heated ethylene glycol solution enters the ethylene glycol wet air cooling system. The ethylene glycol solution that has dissipated heat returns to the heat exchanger. The low-temperature hot water that has exchanged heat with the heat exchanger flows into the liquid cooling system through the outlet of the hot-side pipe.

[0023] In one embodiment of this utility model, the hot-side pipeline includes a second water supply pipeline and a second water return pipeline. One end of the second water return pipeline is connected to a first water return pipeline in the liquid cooling system, and the other end of the second water return pipeline is connected to a second water supply pipeline. The end of the second water supply pipeline furthest from the second water return pipeline is connected to the first water supply pipeline in the liquid cooling system.

[0024] The second water supply pipe is used to carry 40°C low-temperature hot water flowing into the liquid cooling system.

[0025] The second return water pipe is used to flow the 48°C high-temperature hot water that flows out of the liquid cooling system.

[0026] In one embodiment of this utility model, the ethylene glycol circulation pipeline includes a first inlet pipe and a second inlet pipe. One end of the first inlet pipe is connected to an ethylene glycol wet air-cooling system, and the other end of the first inlet pipe is connected to a second inlet pipe. The end of the second inlet pipe furthest from the first inlet pipe is connected to the ethylene glycol wet air-cooling system.

[0027] The first inlet pipe is used to pass through the 36°C ethylene glycol solution flowing out of the ethylene glycol wet air cooling system.

[0028] The second inlet pipe is used to flow through the 44°C ethylene glycol solution that flows into the ethylene glycol wet air cooling system.

[0029] In one embodiment of this utility model, sensors are provided on the second water supply pipe, the second return water pipe, the first liquid inlet pipe, and the second liquid inlet pipe. The sensors are used to monitor and regulate the temperature, flow rate, and pressure of the ethylene glycol solution.

[0030] The second inlet pipe is equipped with a solenoid valve and a circulation pump, which are used to drive the ethylene glycol solution to circulate in the system.

[0031] As a preferred technical solution, the ethylene glycol-water heat exchange system further includes a PLC controller, which is connected to the heat exchanger, the circulating pump, and the sensors.

[0032] When the PLC controller detects that the temperature of the low-temperature hot water flowing out from the sensor installed on the second water supply pipe is higher than the set value, the PLC controller controls the solenoid valve and the circulation pump to start, so as to cool the ethylene glycol solution.

[0033] In one embodiment of this utility model, the ethylene glycol wet air cooling system includes a cooling tower, which is connected to a heat exchanger through a first liquid inlet pipe and a second liquid inlet pipe, and the cooling tower is used to discharge heat into the environment.

[0034] An ethylene glycol pump is installed on the first inlet pipe connecting the cooling tower and the heat exchanger.

[0035] The cooling tower is connected to the pure water replenishment system via a third water supply pipe and a third water return pipe.

[0036] The principle of this utility model is as follows:

[0037] The liquid cooling system uses water as a cooling medium to absorb and dissipate heat generated by data center servers and other equipment through circulation. The system typically includes liquid cooling plates, pumps, heat exchangers, and control units to achieve efficient thermal management. The advantages of liquid cooling systems lie in their high heat dissipation efficiency and energy-saving characteristics, making them suitable for high heat density environments.

[0038] Based on the data center's heat load and spatial layout, the architecture of the liquid cooling system is designed, including liquid cooling plates, cabinets, piping, pumps, and coolant storage and distribution units (CDUs). The liquid cooling plates and cabinets function similarly to heat exchangers. Liquid cooling plates are installed at critical heat sources of the servers; these plates directly absorb heat and transfer it to the circulating coolant. Piping is laid to connect the liquid cooling plates and cabinets, ensuring the coolant can circulate within the system. Pumps drive the coolant to circulate through the system, absorbing heat from IT equipment and transferring it to the liquid cooling plates and cabinets. Within the liquid cooling plates and cabinets, the coolant releases heat, which is then expelled from the system via cooling towers or air coolers. Sensors and control software are deployed to monitor and regulate the coolant's temperature, flow rate, and pressure to ensure efficient system operation. Regular inspections and maintenance of the liquid cooling system are performed, including cleaning the liquid cooling plates, checking for pipe leaks, and replacing the coolant. Intelligent control strategies and algorithms are used to optimize the energy efficiency of the liquid cooling system, reducing energy consumption. The system design ensures it can adapt to different climatic conditions and environmental changes to achieve uninterrupted, efficient heat dissipation throughout the year.

[0039] The Cooling Unit (CDU) is a core component of a data center liquid cooling solution, responsible for controlling and distributing coolant to manage the heat load of IT equipment such as servers. It is typically integrated inside a rack or cabinet and consists of a liquid-to-liquid heat exchanger, a coolant reservoir, a water pump, and filters.

[0040] The ethylene glycol-water heat exchange system is a highly efficient heat exchange system. It utilizes the high specific heat capacity and low freezing point of an aqueous ethylene glycol solution to absorb and release heat within a closed system, achieving efficient heat transfer. Temperature sensors and a control system monitor and adjust the temperature, flow rate, and concentration of the ethylene glycol solution in real time to ensure heat exchange efficiency. The addition of ethylene glycol significantly lowers the freezing point of the solution, enabling the system to operate at low temperatures without freezing.

[0041] Based on heat load requirements and environmental conditions, design the architecture of the ethylene glycol-water heat exchange system, including determining the optimal concentration of the ethylene glycol solution, pump selection, heat exchanger type and size, and piping layout. Ethylene glycol and water are mixed in a specific ratio to form an ethylene glycol solution, according to the required freezing point and viscosity requirements. Heat exchangers are installed, ensuring efficient heat exchange while considering corrosion and scale prevention measures. A circulation pump is installed to ensure the ethylene glycol solution circulates throughout the system. Sensors are deployed to monitor temperature, pressure, and flow rate, and a PLC or similar control system is used to automatically adjust pump speed and valves to maintain constant fluid temperature and flow rate. Piping is installed to connect the heat exchanger, pump, and heat source or heat sink, ensuring good piping insulation to minimize heat loss. After system installation, commissioning and testing are performed to ensure all components are functioning correctly and the heat exchange efficiency meets design requirements. The system is regularly inspected and maintained, including checking the solution concentration, replenishing ethylene glycol, cleaning the heat exchanger and piping, and monitoring system performance.

[0042] A PLC (Programmable Logic Controller) is a digital electronic system used for automated control. It uses a programmable memory to store instructions for performing logical operations, sequential control, timing, counting, and arithmetic operations, and controls various types of machinery or production processes through digital or analog inputs / outputs.

[0043] The ethylene glycol wet air cooling system is a heat dissipation technology that uses an aqueous solution of ethylene glycol as a refrigerant, primarily for data center cooling. This system absorbs heat generated by servers by circulating an aqueous solution of ethylene glycol, and then releases the heat into the environment through a cooling tower or heat exchanger. The advantages of the ethylene glycol wet air cooling system include improved cooling efficiency, reduced energy consumption, and stable operation under various climatic conditions. Because ethylene glycol has a much lower freezing point than water, it effectively prevents the system from freezing in low-temperature environments. Furthermore, the system is typically equipped with automated control, which automatically adjusts operating parameters according to actual heat load changes to ensure cooling effectiveness and optimize energy efficiency.

[0044] The ethylene glycol replenishment system is part of the refrigeration system. It maintains the concentration and total amount of ethylene glycol in the system at an appropriate level by automatically monitoring and replenishing the aqueous ethylene glycol solution. This system can automatically adjust to ensure effective freeze protection and heat transfer under different ambient temperatures, while avoiding operational problems caused by insufficient solution. It typically includes components such as concentration monitoring, automatic replenishment, temperature control, PLC control, and a user interface.

[0045] The pure water preparation system is an automated technology used to monitor and control the pure water production process. This system typically includes key components such as pretreatment, reverse osmosis, and monitoring and control units. Real-time monitoring of parameters such as water quality, flow rate, pressure, and temperature, as well as automatic control of pumps, valves, and other equipment, are achieved through a PLC (Programmable Logic Controller) and configuration software. The pure water preparation system ensures stable water quality, improves operational efficiency, reduces manual intervention, and is suitable for high-standard water requirements such as those of data center liquid cooling systems.

[0046] The pure water replenishment system is an automated control system primarily used to monitor and regulate the replenishment process of the pure water system. This system uses a water level sensor to detect the water level in the storage tank in real time and a programmable logic controller (PLC) to automatically control the switching of valves and pumps to maintain the water level within a set range. The pure water replenishment system ensures stable water quality, reduces manual intervention, improves operational efficiency, and can be monitored and manually operated through a user interface. Furthermore, the system is typically equipped with alarm functions to address potential problems such as abnormal water levels.

[0047] Compared with the prior art, the present invention has the following beneficial effects:

[0048] Against this backdrop, automated monitoring and energy efficiency optimization have become crucial for data center management. Intelligent systems, such as AI and machine learning technologies, are being widely applied in data center operations and management to achieve automated monitoring, fault prediction, and energy efficiency optimization. The application of these technologies not only improves the operational efficiency of data centers but also helps reduce energy consumption and environmental impact, thereby promoting the sustainable development of the data center industry.

[0049] By applying these technologies, data centers can manage their resources more intelligently, ensuring servers operate at optimal performance while minimizing energy consumption. The intelligent control system employed in this patent makes intelligent temperature control and energy efficiency management an important direction for future data center development and a key technology for achieving green data centers. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the intelligent temperature control cooling system for data centers in this utility model;

[0051] Figure 2 This is a structural schematic diagram of the intelligent temperature-controlled cooling system for data centers that includes an ethylene glycol wet air cooling system, as described in this utility model.

[0052] Figure 3 This is a schematic diagram of the liquid cooling system.

[0053] Figure 4 This is a schematic diagram of the ethylene glycol-water heat exchange system.

[0054] Figure 5 This is a schematic diagram of an ethylene glycol wet air cooling system.

[0055] Explanation of the attached diagram numbers: 1. Liquid cooling system; 2. Ethylene glycol and water heat exchange system; 3. Ethylene glycol wet air cooling system; 4. Ethylene glycol replenishment system; 5. Pure water preparation system; 6. Pure water replenishment control system; 8. Liquid cooling plate; 9. Cabinet; 11. First water supply pipe; 12. First return water pipe; 13. Pump; 14. First liquid inlet pipe; 15. Second liquid inlet pipe; 16. Heat exchanger; 17. Circulation pump; 18. Sensor; 19. Second water supply pipe; 20. Second return water pipe; 21. Cooling tower; 22. Ethylene glycol pump; 23. Third water supply pipe; 24. Third return water pipe. Detailed Implementation

[0056] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0057] 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.

[0058] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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 on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0061] Example 1

[0062] See Figure 1 This embodiment provides an intelligent temperature-controlled cooling system for data centers, including a liquid cooling system 1, an ethylene glycol and water heat exchange system 2, and a pure water replenishment system 6.

[0063] The liquid cooling system 1 is connected to the data center server, and the liquid cooling system 1 is used to directly absorb the heat generated by the data center server.

[0064] The ethylene glycol-water heat exchange system 2 is connected to the liquid cooling system 1. A branch line is also led out from the pipeline connecting the ethylene glycol-water heat exchange system 2 and the liquid cooling system 1 to the pure water makeup system 6.

[0065] The ethylene glycol and water heat exchange system 2 is used for heat exchange between ethylene glycol and water. The pure water replenishment system 6 is used to replenish water for the liquid cooling system 1 and the ethylene glycol and water heat exchange system 2, and also to replenish the water required to maintain the stable circulation of ethylene glycol.

[0066] In this embodiment, the intelligent temperature control cooling system further includes an ethylene glycol replenishment system 4, which is connected to the ethylene glycol and water heat exchange system 2. The ethylene glycol replenishment system 4 is used to automatically monitor and replenish the ethylene glycol aqueous solution.

[0067] In this embodiment, the intelligent temperature control cooling system further includes a pure water preparation system 5, which is connected to a pure water replenishment system 6. The pure water preparation system 5 is used to produce the required pure water from external water and replenish it to the pure water replenishment system 6.

[0068] Example 2

[0069] See Figure 2 This embodiment provides an intelligent temperature-controlled cooling system for a data center. The intelligent temperature-controlled cooling system further includes an ethylene glycol wet air-cooling system 3, which is connected to an ethylene glycol-water heat exchange system 2. A pure water makeup system 6 is also connected to the ethylene glycol wet air-cooling system 3.

[0070] The ethylene glycol wet air cooling system 3 is used to ensure the stable operation of the intelligent temperature-controlled cooling system under different climatic conditions, and the pure water replenishment system 6 discharges the heat generated by the server into the environment by circulating ethylene glycol aqueous solution.

[0071] In this embodiment, the ethylene glycol replenishment system 4 is connected to both the ethylene glycol wet air cooling system 3 and the ethylene glycol-water heat exchange system 2.

[0072] Example 3

[0073] See Figure 3 This embodiment provides an intelligent temperature-controlled cooling system for a data center. The liquid cooling system 1 includes a liquid cooling plate 8, a cooling water circulation pipe, and a cabinet 9. The liquid cooling plate 8 is fixedly installed at the heat source of the data center server. The low-temperature hot water flowing into the cooling water circulation pipe passes through the liquid cooling plate 8 and several cabinets 9, and absorbs the heat generated by the liquid cooling plate 8 and several cabinets 9. The heated high-temperature hot water flows into the ethylene glycol and water heat exchange system 2.

[0074] In this embodiment, the cooling water circulation pipeline includes a first water supply pipeline 11 and a first water return pipeline 12. The first water supply pipeline 11 is connected to the liquid cooling plate 8 and several cabinets 9. The first water return pipeline 12 is connected to the liquid cooling plate 8 and several cabinets 9. The first water supply pipeline 11 is used to flow 40°C low-temperature hot water into the liquid cooling plate 8 and several cabinets 9. The first water return pipeline 12 is used to flow 48°C high-temperature hot water into the ethylene glycol and water heat exchange system 2.

[0075] In this embodiment, a plurality of pumps 13 are provided on the first water supply pipe 11 and the first return water pipe 12, and the pumps 13 are used to drive water to circulate in the liquid cooling plate 8 and the cabinet 9;

[0076] Sensors 18 are installed on the liquid cooling plate 8 and the cabinet 9.

[0077] In this embodiment, the liquid cooling system 1 further includes a coolant storage and distribution unit, which is connected to the pump 13, sensor 18, liquid cooling plate 8 and cabinet 9. The coolant storage and distribution unit is used to control the circulation of coolant in the system.

[0078] Example 4

[0079] See Figure 4 This embodiment provides an intelligent temperature-controlled cooling system for a data center. The ethylene glycol-water heat exchange system 2 includes a hot-side pipe, an ethylene glycol circulation pipe, and a heat exchanger 16. The hot-side pipe is connected to the cooling water circulation pipe in the liquid cooling system 1.

[0080] The heat exchanger 16 is connected to the hot side pipe and the ethylene glycol circulation pipe at its left and right ends, respectively. The high-temperature hot water flowing out of the liquid cooling system 1 enters the heat exchanger 16 through the hot side pipe and exchanges heat with the ethylene glycol solution inside the heat exchanger 16. The heated ethylene glycol solution enters the ethylene glycol wet air cooling system 3. The ethylene glycol solution that has dissipated heat returns to the heat exchanger 16. The low-temperature hot water that has exchanged heat with the heat exchanger 16 flows into the liquid cooling system 1 through the outlet of the hot side pipe.

[0081] In this embodiment, the hot-side piping includes a second water supply pipe 19 and a second water return pipe 20. One end of the second water return pipe 20 is connected to the first water return pipe 12 in the liquid cooling system 1, and the other end of the second water return pipe 20 is connected to the second water supply pipe 19. The end of the second water supply pipe 19 away from the second water return pipe 20 is connected to the first water supply pipe 11 in the liquid cooling system 1.

[0082] The second water supply pipe 19 is used to flow 40°C low-temperature hot water into the liquid cooling system 1.

[0083] The second return water pipe 20 is used for the 48°C high-temperature hot water flowing out of the liquid cooling system 1.

[0084] In this embodiment, the ethylene glycol circulation pipeline includes a first inlet pipe 14 and a second inlet pipe 15. One end of the first inlet pipe 14 is connected to the ethylene glycol wet air cooling system 3, and the other end of the first inlet pipe 14 is connected to the second inlet pipe 15. The end of the second inlet pipe 15 away from the first inlet pipe 14 is connected to the ethylene glycol wet air cooling system 3.

[0085] The first inlet pipe 14 is used to flow through the 36°C ethylene glycol solution flowing out of the ethylene glycol wet air cooling system 3.

[0086] The second inlet pipe 15 is used to flow through the 44°C ethylene glycol solution flowing into the ethylene glycol wet air cooling system 3.

[0087] In this embodiment, sensors 18 are provided on the second water supply pipe 19, the second return water pipe 20, the first liquid inlet pipe 14, and the second liquid inlet pipe 15. The sensors 18 are used to monitor and regulate the temperature, flow rate, and pressure of the ethylene glycol solution.

[0088] The second inlet pipe 15 is equipped with a solenoid valve and a circulation pump 17, which are used to drive the ethylene glycol solution to circulate in the system.

[0089] In this embodiment, the ethylene glycol-water heat exchange system 2 further includes a PLC controller, which is connected to the heat exchanger 16, the circulating pump 17, and the sensor 18.

[0090] When the PLC controller detects that the temperature of the low-temperature hot water flowing out from the sensor 18 installed on the second water supply pipe 19 is higher than the set value, the PLC controller controls the solenoid valve and the circulation pump 17 to start, so as to cool the ethylene glycol solution.

[0091] Example 5

[0092] See Figure 5 This embodiment provides an intelligent temperature-controlled cooling system for a data center. The ethylene glycol wet air cooling system 3 includes a cooling tower 21. The cooling tower 21 is connected to a heat exchanger 16 through a first liquid inlet pipe 14 and a second liquid inlet pipe 15. The cooling tower 21 is used to discharge heat into the environment.

[0093] An ethylene glycol pump 22 is installed on the first liquid inlet pipe 14 connecting the cooling tower 21 and the heat exchanger 16.

[0094] The cooling tower 21 is connected to the pure water replenishment system 6 through the third water supply pipe 23 and the third water return pipe 24.

[0095] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A smart temperature-controlled cooling system for data centers, characterized in that, It includes a liquid cooling system (1), an ethylene glycol and water heat exchange system (2), and a pure water makeup system (6). The liquid cooling system (1) is connected to the data center server, and the liquid cooling system (1) is used to directly absorb the heat generated by the data center server. The ethylene glycol and water heat exchange system (2) is connected to the liquid cooling system (1), and a branch line is also led out from the pipe connecting the ethylene glycol and water heat exchange system (2) to the liquid cooling system (1) to connect to the pure water makeup system (6). The ethylene glycol and water heat exchange system (2) is used to perform heat exchange between ethylene glycol and water. The pure water replenishment system (6) is used to replenish water to the liquid cooling system (1) and the ethylene glycol and water heat exchange system (2), and at the same time, it is used to replenish the water required to maintain the stable circulation of ethylene glycol.

2. The intelligent temperature-controlled cooling system for a data center according to claim 1, characterized in that, The intelligent temperature control cooling system also includes an ethylene glycol replenishment system (4), which is connected to the ethylene glycol and water heat exchange system (2). The ethylene glycol replenishment system (4) is used to automatically monitor and replenish the ethylene glycol aqueous solution.

3. The intelligent temperature-controlled cooling system for a data center according to claim 1, characterized in that, The intelligent temperature control cooling system also includes a pure water preparation system (5), which is connected to a pure water replenishment system (6). The pure water preparation system (5) is used to produce the required pure water from external water and replenish it to the pure water replenishment system (6).

4. The intelligent temperature-controlled cooling system for a data center according to claim 2, characterized in that, The intelligent temperature-controlled refrigeration system also includes an ethylene glycol wet air-cooling system (3), which is connected to the ethylene glycol and water heat exchange system (2). The pure water makeup system (6) is connected to the ethylene glycol wet air-cooling system (3). The ethylene glycol wet air cooling system (3) is used to enable the intelligent temperature control cooling system to operate stably under different climatic conditions. The pure water replenishment system (6) discharges the heat generated by the server into the environment by circulating ethylene glycol aqueous solution. The ethylene glycol replenishment system (4) is connected to both the ethylene glycol wet air cooling system (3) and the ethylene glycol-water heat exchange system (2).

5. The intelligent temperature-controlled cooling system for a data center according to claim 4, characterized in that, The liquid cooling system (1) includes a liquid cooling plate (8), a cooling water circulation pipe and a cabinet (9). The liquid cooling plate (8) is fixedly installed at the heat source of the data center server. The low-temperature hot water flowing into the cooling water circulation pipe passes through the liquid cooling plate (8) and several cabinets (9) and absorbs the heat generated by the liquid cooling plate (8) and several cabinets (9). The heated high-temperature hot water flows into the ethylene glycol and water heat exchange system (2).

6. The intelligent temperature-controlled cooling system for a data center according to claim 5, characterized in that, The cooling water circulation pipeline includes a first water supply pipeline (11) and a first water return pipeline (12). The first water supply pipeline (11) is connected to the liquid cooling plate (8) and several cabinets (9). The first water return pipeline (12) is connected to the liquid cooling plate (8) and several cabinets (9). The first water supply pipeline (11) is used to flow 40°C low-temperature hot water into the liquid cooling plate (8) and several cabinets (9). The first water return pipeline (12) is used to flow 48°C high-temperature hot water into the ethylene glycol and water heat exchange system (2).

7. The intelligent temperature-controlled cooling system for a data center according to claim 6, characterized in that, The ethylene glycol and water heat exchange system (2) includes a hot-side pipe, an ethylene glycol circulation pipe, and a heat exchanger (16). The hot-side pipe is connected to the cooling water circulation pipe in the liquid cooling system (1). The heat exchanger (16) is connected to the hot side pipe and the ethylene glycol circulation pipe at its left and right ends respectively. The high-temperature hot water flowing out of the liquid cooling system (1) enters the heat exchanger (16) through the hot side pipe and exchanges heat with the ethylene glycol solution inside the heat exchanger (16). The heated ethylene glycol solution enters the ethylene glycol wet air cooling system (3). The ethylene glycol solution that has dissipated heat returns to the heat exchanger (16). The low-temperature hot water that has exchanged heat with the heat exchanger (16) flows into the liquid cooling system (1) through the outlet of the hot side pipe.

8. The intelligent temperature-controlled cooling system for a data center according to claim 7, characterized in that, The hot-side piping includes a second water supply pipe (19) and a second water return pipe (20). One end of the second water return pipe (20) is connected to the first water return pipe (12) in the liquid cooling system (1), and the other end of the second water return pipe (20) is connected to the second water supply pipe (19). The end of the second water supply pipe (19) away from the second water return pipe (20) is connected to the first water supply pipe (11) in the liquid cooling system (1). The second water supply pipe (19) is used to flow 40°C low-temperature hot water into the liquid cooling system (1). The second return water pipe (20) is used for the 48°C high-temperature hot water flowing out of the liquid cooling system (1).

9. A smart temperature-controlled cooling system for a data center according to claim 8, characterized in that, The ethylene glycol circulation pipeline includes a first inlet pipe (14) and a second inlet pipe (15). One end of the first inlet pipe (14) is connected to the ethylene glycol wet air cooling system (3), and the other end of the first inlet pipe (14) is connected to the second inlet pipe (15). The end of the second inlet pipe (15) away from the first inlet pipe (14) is connected to the ethylene glycol wet air cooling system (3). The first inlet pipe (14) is used to flow through the 36°C ethylene glycol solution flowing out of the ethylene glycol wet air cooling system (3). The second inlet pipe (15) is used to flow through the 44°C ethylene glycol solution flowing into the ethylene glycol wet air cooling system (3).

10. A smart temperature-controlled cooling system for a data center according to claim 9, characterized in that, The ethylene glycol wet air cooling system (3) includes a cooling tower (21), which is connected to a heat exchanger (16) through a first liquid inlet pipe (14) and a second liquid inlet pipe (15). The cooling tower (21) is used to discharge heat into the environment. An ethylene glycol pump (22) is installed on the first liquid inlet pipe (14) connecting the cooling tower (21) and the heat exchanger (16). The cooling tower (21) is connected to the pure water replenishment system (6) through the third water supply pipe (23) and the third water return pipe (24).

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