Liquid-cooled container data center
By introducing a liquid cooling system into the container data center, combined with dual cooling of high-temperature return water surface coolers and plate heat exchangers and filler evaporation cooling, the problem of high energy consumption in the existing technology is solved, an efficient cooling cycle is achieved throughout the year, and the energy consumption of the data center is reduced.
Patent Information
- Application Number
- CN202422658514.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-01
AI Technical Summary
The cooling systems of existing container data centers fail to fully utilize natural cooling sources and fail to optimize according to seasonal temperature changes, resulting in high energy consumption.
A liquid-cooled container data center system is used, with high-temperature return water used for primary and secondary cooling in high-temperature return water surface coolers and plate heat exchangers. Combined with filler evaporation cooling, cooling water is used to pre-cool the external air, achieving an efficient year-round cooling cycle.
The annual power consumption of the container data center is significantly reduced, and the heat dissipation efficiency and energy saving effect are improved.
Smart Images
Figure CN223415158U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of data center refrigeration equipment and application scenarios, and in particular to a liquid-cooled container data center. Background Art
[0002] With the comprehensive development of my country's economic informatization, container data centers are increasingly being used due to their economical efficiency and ease of deployment. Consequently, cooling and energy conservation in container data centers are becoming increasingly important. Currently, conventional container data center cooling systems mostly use air-cooled air conditioning, which fails to fully utilize natural cooling resources and does not operate in different modes according to seasonal temperatures, thereby saving energy and reducing consumption. Utility Model Content
[0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a liquid-cooled container data center, which, in seasons with relatively high temperatures, transports the high-temperature return water in the computer room to the high-temperature return water surface cooler and the plate heat exchanger for primary and secondary cooling, thereby circulating cold water. The cold water is transported all the way to the room air conditioner in the computer room for heat exchange and cooling of the hot air in the computer room, and the cold water is transported all the way to the pre-cooling surface cooler for pre-cooling the outside air for heat exchange and cooling. The cold water after heat exchange is transported to the liquid-cooled server cabinet in the computer room for liquid-cooled cold plate heat exchange and cooling of the server; by placing the high-temperature return water surface cooler behind the air inlet direction of the filler, the cooled cold air is used to preliminarily cool the high-temperature return water in the high-temperature return water surface cooler , and then use the cooling water that evaporates and cools the high-temperature return water that has been cooled for the first time in the heat exchanger to cool it down for the second time, thereby realizing the cycle of high-temperature return water cooling; by using the cooled cooling water return water to pre-cool the external air, a lower temperature cooling water is obtained in the evaporation heat exchange of the filler; in the low temperature season, the high-temperature return water in the computer room is directly transported to the high-temperature return water surface cooler for heat exchange with the extremely low external temperature cold air. The high-temperature return water after heat exchange is transported all the way to the liquid-cooled server cabinet to cool the server by liquid-cooled cold plate heat exchange, and then transported all the way to the room air conditioner in the computer room to heat exchange and cool the hot air in the computer room. Such cyclic control greatly reduces the power consumption of the container data center throughout the year.
[0004] The technical solution of the implementation case of this utility model is as follows:
[0005] A liquid-cooled container data center includes a cold source transport container and multiple computer room containers. The cold source transport container includes a container body and a liquid-cooled cooling system located within the container body. The computer room container includes a container body and a fire protection cabinet, a liquid-cooled server cabinet, a room air conditioner, a battery cabinet, and a power supply cabinet arranged within the container body according to data center layout specifications. A first water outlet of the liquid-cooled cooling system is connected to a liquid inlet of the liquid-cooled server cabinet through a pipe, a second water outlet of the liquid-cooled cooling system is connected to a liquid inlet of the room air conditioner through a pipe, and the liquid outlets of the liquid-cooled server cabinet and the room air conditioner are connected to the water inlet of the liquid-cooled cooling system through a pipe.
[0006] Preferably, the cold source transport container further comprises an expansion water tank, the water inlet of the expansion water tank is connected to the liquid cooling server cabinet and the liquid outlet of the room air conditioner through a pipeline, and the water outlet of the expansion water tank is connected to the water inlet of the liquid cooling system
[0007] Preferably, the liquid cooling system includes a tower body, a water distributor, a filler, a water receiving and storage tank, a high-temperature return water surface cooler, a pre-cooling surface cooler, an electric three-way valve, a cooling water circulation pump, a plate heat exchanger, a pre-cooling circulation pump, a fan, and a controller. The water distributor, the filler, the water receiving and storage tank, the high-temperature return water surface cooler, the pre-cooling surface cooler, and the fan are located in the tower body, the pre-cooling surface cooler is located at the air inlet of the tower body, the filler is located behind the pre-cooling surface cooler, the high-temperature return water surface cooler is located behind the filler, the water distributor is located above the filler, the fan is located at the top of the tower body, the water receiving and storage tank is located at the bottom of the tower body, and the water receiving part of the water receiving and storage tank is located below the filler;
[0008] The water inlet of the high-temperature return water cooler is connected to the liquid cooling server cabinet and the liquid outlet of the room air conditioner through a pipeline. The water outlet of the high-temperature return water cooler is connected to the water inlet of the electric three-way valve through a pipeline. The first water outlet of the electric three-way valve is connected to the hot end inlet of the plate heat exchanger through a pipeline. The hot end outlet of the plate heat exchanger is connected to the liquid inlet of the room air conditioner through a pipeline. The hot end outlet of the plate heat exchanger is also connected to the water inlet of the pre-cooling circulation pump through a pipeline. The water inlet of the pre-cooling circulation pump is also connected to the second water outlet of the electric three-way valve through a pipeline. The water outlet is connected to the water inlet of the pre-cooling surface cooler through a pipe, and the water outlet of the pre-cooling surface cooler is connected to the liquid inlet of the liquid-cooled server cabinet through a pipe. The water outlet of the pre-cooling surface cooler is also connected to the hot end inlet of the plate heat exchanger through a pipe, and the cold end inlet of the plate heat exchanger is connected to the water outlet of the cooling water circulation pump through a pipe. The water inlet of the cooling water circulation pump is connected to the water receiving tank through a pipe, and the cold end outlet of the plate heat exchanger is connected to the water distributor through a pipe. The fan, the cooling water circulation pump, the electric three-way valve, the pre-cooling circulation pump and the controller are electrically connected.
[0009] Preferably, the liquid-cooled server cabinet includes a cabinet, a server, a liquid-cooled cold plate and a liquid-cooling pump. The server is placed on the shelf of the cabinet, and the liquid-cooled cold plate is in close contact with the server for heat conduction. The water inlet of the liquid-cooling pump is connected to the water outlet of the pre-cooling surface cooler through a pipe, and the water outlet of the liquid-cooling pump is connected to the liquid inlet of the liquid-cooled cold plate through a pipe. The liquid outlet of the liquid-cooled cold plate is connected to the water inlet of the high-temperature return water surface cooler through a pipe, and the liquid cooling pump is electrically connected to the controller.
[0010] Preferably, the room air conditioner includes a shell, a heat exchange coil and a cold water pump. The heat exchange coil is located in the shell. The water inlet of the cold water pump is connected to the hot end outlet of the plate heat exchanger through a pipe. The water outlet of the cold water pump is connected to the liquid inlet end of the heat exchange coil through a pipe. The liquid outlet end of the heat exchange coil is connected to the water inlet end of the high-temperature return water cooler through a pipe. The cold water pump is electrically connected to the controller.
[0011] Compared with the prior art, the beneficial effects of the present invention are:
[0012] The liquid cooling system and the computer room are placed in containers of the same size, which is convenient for transportation and on-site construction of data centers. In the season with relatively high temperature, the liquid cooling system transmits the high-temperature return water in the computer room to the high-temperature return water surface cooler and the plate heat exchanger for primary and secondary cooling, thereby circulating the cold water. The cold water is transmitted all the way to the room air conditioner in the computer room to exchange heat and cool the hot air in the computer room. The cold water is transmitted all the way to the pre-cooling surface cooler to pre-cool the external air. The cold water after heat exchange is transmitted to the liquid-cooled server cabinet in the computer room to exchange heat and cool the server with the liquid-cooled cold plate; the high-temperature return water surface cooler is placed behind the air inlet direction of the filler, and the cooled cold air is used to cool the high-temperature return water in the high-temperature return water surface cooler. The initial cooling is carried out, and the cooling water evaporated in the filler is used to perform a secondary cooling on the high-temperature return water that has been cooled for the first time in the heat exchanger, thereby realizing the cycle of high-temperature return water cooling. The external air is pre-cooled by using the cooled cooling water return water, so that cooling water with a lower temperature is obtained in the evaporation heat exchange of the filler. In the low temperature season, the high-temperature return water in the computer room is directly transported to the high-temperature return water surface cooler for heat exchange with the extremely low external temperature cold air. The high-temperature return water after heat exchange is transported all the way to the liquid-cooled server cabinet to cool the server by liquid-cooled cold plate heat exchange, and is further transported to the room air conditioner in the computer room for heat exchange and cooling of the hot air in the computer room. Such cyclic control greatly reduces the power consumption of the container data center throughout the year. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a structural diagram of a liquid-cooled container data center in the present invention;
[0014] Figure 2 This is a schematic diagram of the principle of a liquid-cooled container data center in the present invention operating in summer and transition seasons;
[0015] Figure 3 This is a schematic diagram of the principle of a liquid-cooled container data center operating in winter in the present invention;
[0016] 100. Cold source transport container; 10. Liquid-cooled cooling system; 101. Tower body; 102. Water distributor; 103. Filler; 104. Water receiving and storage tank; 105. High-temperature return water surface cooler; 106. Pre-cooling surface cooler; 107. Electric three-way valve; 108. Cooling water circulation pump; 109. Plate heat exchanger; 110. Pre-cooling circulation pump; 111. Fan; 20. Expansion water tank; 200. Computer room container; 210. Liquid-cooled server cabinet; 211. Cabinet; 212. Server; 213. Liquid-cooled cold plate; 214. Liquid-cooling pump; 220. Room air conditioner; 221. Shell; 222. Heat exchange coil; 223. Chilled water pump; 300. Container body. DETAILED DESCRIPTION
[0017] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to facilitate a more thorough and comprehensive understanding of the disclosure of the present invention.
[0018] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.
[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.
[0020] like Figure 1 As shown, Figure 1 This is a structural schematic diagram of a liquid-cooled container data center in the present invention; a liquid-cooled container data center includes a cold source transport container 100 and multiple computer room containers 200, the cold source transport container 100 includes a container body 300 and a liquid-cooled cooling system 10 located in the container body 300, the computer room container 200 includes a container body 300 and a fire cabinet, a liquid-cooled server cabinet 210, a room air conditioner 220, a battery cabinet and a power supply cabinet arranged in the container body according to the data center layout specifications, a first water outlet of the liquid-cooled cooling system 10 is connected to the liquid inlet of the liquid-cooled server cabinet 210 through a pipe, a second water outlet of the liquid-cooled cooling system 10 is connected to the liquid inlet of the room air conditioner 220 through a pipe, and the liquid outlets of the liquid-cooled server cabinet 210 and the room air conditioner 220 are connected to the water inlet of the liquid-cooled cooling system 10 through a pipe.
[0021] The liquid-cooled container data center is a data center that uses containers. The length, width, and height of the container bodies of the computer room container and the cold source delivery container are all the same. It can be standardized and modularized for customization, and is easy to transport and move. Its liquid cooling system is integrated in the container body and can be modularly produced. The data center in the present invention includes two or more container bodies, which are determined by the cooling capacity of the liquid cooling system. In this embodiment, it is three container bodies, two containers are used as computer rooms, and one container is used for cooling. In the computer room container, there are all the necessary equipment for the computer room data center, including liquid-cooled server cabinets, room air conditioners, fire cabinets, battery cabinets, and power cabinets, etc., which constitute the computer room. In the cold source delivery container, the above-mentioned liquid cooling system is integrated in the container, and the cold source is transported to the two computer room containers in two ways through pipes, and heat is recovered through one pipe to achieve cooling of the computer room.
[0022] In order to prevent the flow fluctuation and temperature change caused by the conflict of liquid capacity between the cold source supply and hot water recovery between the cold source delivery container and the machine room container, such as Figure 2 、 Figure 3 As shown, Figure 2 This is a schematic diagram of the principle of a liquid-cooled container data center in the present invention operating in summer and transition seasons; Figure 3 This is a schematic diagram of the principle of a liquid-cooled container data center operating in winter in the present invention; preferably, the cold source delivery container 100 also includes an expansion water tank 20, the water inlet of the expansion water tank 20 is connected to the liquid outlet of the liquid-cooled server cabinet 210 and the room air conditioner 220 through a pipe, and the water outlet of the expansion water tank 20 is connected to the water inlet of the liquid cooling system 10.
[0023] The expansion water tank is set on the return water channel. The cold liquid in the liquid-cooled server cabinets in the computer room container and the room air conditioner flows back to the cold source delivery container through the return water pipe. When the liquid pressure is too high, it means that the flow is too large. At this time, part of it can be diverted to the expansion water tank. When the liquid pressure is too low, it means that the flow is too small. At this time, the expansion water tank releases the cold water to the cold source delivery container, thereby achieving stable delivery and return flow.
[0024] As for the specific structure of the cold source transport container for preparing the cold source and transporting the cold source, and how to cooperate with the machine room container for operation, preferably, the liquid cooling system 10 includes a tower body 101, a water distributor 102, a filler 203, a water receiving and storage tank 104, a high-temperature return water surface cooler 105, a pre-cooling surface cooler 106, an electric three-way valve 107, a cooling water circulation pump 108, a plate heat exchanger 109, a pre-cooling circulation pump 110, a fan 111, and a controller. The water distributor 102, the filler 103, the water receiving and storage tank 104, the high-temperature return water surface cooler 105, the pre-cooling surface cooler 106, and the fan 111 are located in the In the tower body, the pre-cooling surface cooler 106 is located at the air inlet of the tower body 101, the filler 103 is located behind the pre-cooling surface cooler 106, the high-temperature return water surface cooler 105 is located behind the filler 103, the water distributor 102 is located above the filler 103, the fan 111 is located at the top of the tower body 101, the water receiving tank 104 is located at the bottom of the tower body 101, and the water receiving part of the water receiving tank 104 is located below the filler 103; the water inlet end of the high-temperature return water surface cooler 105 is connected to the liquid outlet of the liquid-cooled server cabinet 210 and the room air conditioner 220 through a pipe, and the high-temperature return water surface cooler 105 is connected to the liquid outlet of the liquid-cooled server cabinet 210 and the room air conditioner 220 through a pipe. The water outlet of the cooler 105 is communicated with the water inlet of the electric three-way valve 107 through a pipeline, the first water outlet of the electric three-way valve 107 is communicated with the hot end inlet of the plate heat exchanger 109 through a pipeline, the hot end outlet of the plate heat exchanger 109 is communicated with the liquid inlet of the room air conditioner 220 through a pipeline, the hot end outlet of the plate heat exchanger 109 is also communicated with the water inlet of the pre-cooling circulation pump 110 through a pipeline, the water inlet of the pre-cooling circulation pump 110 is also communicated with the second water outlet of the electric three-way valve 107 through a pipeline, the water outlet of the pre-cooling circulation pump 110 is communicated with the water inlet of the pre-cooling surface cooler 106 through a pipeline, and the pre-cooling surface cooler The water outlet of the device 106 is connected to the liquid inlet of the liquid-cooled server cabinet 210 through a pipeline, and the water outlet of the pre-cooling surface cooler 106 is also connected to the hot end inlet of the plate heat exchanger 109 through a pipeline. The cold end inlet of the plate heat exchanger 1069 is connected to the water outlet of the cooling water circulation pump 108 through a pipeline, and the water inlet of the cooling water circulation pump 108 is connected to the water receiving tank 104 through a pipeline. The cold end outlet of the plate heat exchanger 109 is connected to the water distributor 102 through a pipeline. The fan 111, the cooling water circulation pump 108, the electric three-way valve 107, and the pre-cooling circulation pump 110 are electrically connected to the controller.
[0025] As for how the liquid-cooled server cabinet cools the server, preferably, the liquid-cooled server cabinet 210 includes a cabinet 211, a server 212, a liquid-cooled cold plate 213 and a liquid-cooled pump 214. The server 212 is placed on the shelf of the cabinet 211, and the liquid-cooled cold plate 213 is in close contact with the server 212 for heat conduction. The water inlet of the liquid-cooled pump 214 is connected to the water outlet of the pre-cooling surface cooler 106 through a pipe, and the water outlet of the liquid-cooled pump 214 is connected to the liquid inlet of the liquid-cooled cold plate 213 through a pipe. The liquid outlet of the liquid-cooled cold plate 213 is connected to the water inlet of the high-temperature return water surface cooler 105 through a pipe, and the liquid cooling pump 214 is electrically connected to the controller.
[0026] As for how the room air conditioner realizes heat exchange and cooling of the space of the machine room container, preferably, the room air conditioner 220 includes a shell 221, a heat exchange coil 222 and a cold water pump 223. The heat exchange coil 222 is located in the shell 221, and the water inlet of the cold water pump 223 is connected to the hot end outlet of the plate heat exchanger 109 through a pipe, and the water outlet of the cold water pump 223 is connected to the liquid inlet end of the heat exchange coil 222 through a pipe, and the liquid outlet end of the heat exchange coil 222 is connected to the water inlet end of the high-temperature return water cooler 105 through a pipe, and the cold water pump 223 is electrically connected to the controller.
[0027] The liquid cooling system is controlled to operate in different modes according to the external temperature environment, including winter mode, summer mode and transition mode. Figure 2 As shown, Figure 2This is a schematic diagram of the principle of a liquid-cooled container data center in the present invention operating in summer and transition seasons; in summer, the controller controls the water inlet and the first water outlet of the three-way valve to be connected, and the cold liquid in the high-temperature return water cooler initially exchanges heat with the cold air output from the packing evaporative cooling, is sucked by the cold water pump, and after heat exchange with the cooling water output from the plate heat exchanger and the water storage tank, part of it is sucked by the pre-cooling circulation pump and transported to the pre-cooling cooler, and part of it enters the heat exchange coil of the room air conditioner. The cooling water in the room air conditioner exchanges heat with the hot air in the computer room container and is output to the high-temperature return water cooler. Part of the cooling water enters the pre-cooling cooler to pre-cool the external air. After heating, part of it is mixed with the cooling water for the initial heat exchange delivered by the high-temperature return water cooler and transported to the plate heat exchanger, and part of it is sucked by the liquid cooling pump and transported to the liquid cooling cold plate to exchange heat and cool the server. After heating, it flows back to the high-temperature return water cooler, and the cycle continues. In the plate heat exchanger, the cooling water exchanges heat with the high-temperature return water cooler and the sub-high-temperature water in the pre-cooling cooler. After the heat exchange increases, it is transported to the water distributor. The water distributor sprinkles the high-temperature water on the filler. The high-temperature water on the filler undergoes an isenthalpic process with the air entering from the outside. The high-temperature water in the filler evaporates and exchanges heat, and the temperature drops and flows into the water receiving tank. The cooling water in the water receiving tank is pumped to the plate heat exchanger by the cooling water circulation pump, and the cycle continues.
[0028] For example, the outlet temperature of the cold liquid in the container of the machine room is 38℃, which is cooled to 32℃ through heat exchange in the high-temperature return water condenser, and mixed with the water heated to 30℃ in the pre-cooling condenser to form high-temperature water of 31℃. After heat exchange with the 28℃ cooling water through plate heat exchange, the temperature is cooled to 28℃ and output to the pre-cooling condenser, and heat exchanged with the external high-temperature air to 30℃. The 28℃ cooling water in the plate heat exchanger is heated to 31℃ after heat exchange and transported to the water distributor, and is cooled to 28℃ cooling water through evaporation of the filler, and the cycle is repeated.
[0029] like Figure 3 As shown, Figure 3 This is a schematic diagram of the principle of a liquid-cooled container data center in the present invention operating in winter; in winter, the controller controls the water inlet and the second water outlet of the three-way valve to be connected, and the controller controls the cooling water circulation pump. The cold liquid in the high-temperature return water cooler is sucked and transported to the pre-cooling cooler by the pre-cooling circulation pump, and exchanges heat with the external low-temperature air. After cooling, part of it is sucked and transported to the liquid-cooled cold plate by the liquid cooling pump to cool the server, and part of it is sucked by the cold water pump through the plate heat exchanger into the heat exchange coil to exchange heat with the hot air in the computer room container. After the liquid is heated by heat exchange, it is collected and refluxed and transported to the high-temperature return water cooler, and the cycle is repeated.
[0030] Compared with the prior art, the beneficial effects of the present invention are:
[0031] The liquid cooling system and the computer room are placed in containers of the same size, which is convenient for transportation and on-site construction of data centers. In the season with relatively high temperature, the liquid cooling system transmits the high-temperature return water in the computer room to the high-temperature return water surface cooler and the plate heat exchanger for primary and secondary cooling, thereby circulating the cold water. The cold water is transmitted all the way to the room air conditioner in the computer room to exchange heat and cool the hot air in the computer room. The cold water is transmitted all the way to the pre-cooling surface cooler to pre-cool the external air. The cold water after heat exchange is transmitted to the liquid-cooled server cabinet in the computer room to exchange heat and cool the server with the liquid-cooled cold plate; the high-temperature return water surface cooler is placed behind the air inlet direction of the filler, and the cooled cold air is used to cool the high-temperature return water in the high-temperature return water surface cooler. The initial cooling is carried out, and the cooling water evaporated in the filler is used to perform a secondary cooling on the high-temperature return water that has been cooled for the first time in the heat exchanger, thereby realizing the cycle of high-temperature return water cooling. The external air is pre-cooled by using the cooled cooling water return water, so that lower temperature cooling water is obtained in the evaporation heat exchange of the filler. In the low temperature season, the high-temperature return water in the computer room is directly transported to the high-temperature return water surface cooler for heat exchange with the extremely low external temperature cold air. The high-temperature return water after heat exchange is transported all the way to the liquid-cooled server cabinet to cool the server by liquid-cooled cold plate heat exchange, and is further transported to the room air conditioner in the computer room for heat exchange and cooling of the hot air in the computer room. Such cyclic control greatly reduces the power consumption of the container data center throughout the year.
[0032] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0033] The above embodiments merely represent preferred implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.
Claims
1. A liquid-cooled container data center, characterized by: It includes a cold source transport container and multiple computer room containers. The cold source transport container includes a container body and a liquid cooling system located in the container body. The computer room container includes a container body and a fire protection cabinet, a liquid cooling server cabinet, a room air conditioner, a battery cabinet and a power supply cabinet arranged in the container body according to the data center layout specifications. The first water outlet of the liquid cooling system is connected to the liquid inlet of the liquid cooling server cabinet through a pipeline, the second water outlet of the liquid cooling system is connected to the liquid inlet of the room air conditioner through a pipeline, and the liquid outlets of the liquid cooling server cabinet and the room air conditioner are connected to the water inlet of the liquid cooling system through pipelines.
2. The liquid-cooled container data center according to claim 1, characterized in that: The cold source transport container also includes an expansion water tank, the water inlet of the expansion water tank is connected to the liquid cooling server cabinet and the liquid outlet of the room air conditioner through a pipeline, and the water outlet of the expansion water tank is connected to the water inlet of the liquid cooling system.
3. The liquid-cooled container data center according to claim 2, characterized in that: The liquid cooling system includes a tower body, a water distributor, a filler, a water receiving and storage tank, a high-temperature return water surface cooler, a pre-cooling surface cooler, an electric three-way valve, a cooling water circulation pump, a plate heat exchanger, a pre-cooling circulation pump, a fan, and a controller. The water distributor, the filler, the water receiving and storage tank, the high-temperature return water surface cooler, the pre-cooling surface cooler, and the fan are located in the tower body, the pre-cooling surface cooler is located at the air inlet of the tower body, the filler is located behind the pre-cooling surface cooler, the high-temperature return water surface cooler is located behind the filler, the water distributor is located above the filler, the fan is located at the top of the tower body, the water receiving and storage tank is located at the bottom of the tower body, and the water receiving part of the water receiving and storage tank is located below the filler; The water inlet of the high-temperature return water cooler is connected to the liquid cooling server cabinet and the liquid outlet of the room air conditioner through a pipeline. The water outlet of the high-temperature return water cooler is connected to the water inlet of the electric three-way valve through a pipeline. The first water outlet of the electric three-way valve is connected to the hot end inlet of the plate heat exchanger through a pipeline. The hot end outlet of the plate heat exchanger is connected to the liquid inlet of the room air conditioner through a pipeline. The hot end outlet of the plate heat exchanger is also connected to the water inlet of the pre-cooling circulation pump through a pipeline. The water inlet of the pre-cooling circulation pump is also connected to the second water outlet of the electric three-way valve through a pipeline. The water outlet is connected to the water inlet of the pre-cooling surface cooler through a pipe, and the water outlet of the pre-cooling surface cooler is connected to the liquid inlet of the liquid-cooled server cabinet through a pipe. The water outlet of the pre-cooling surface cooler is also connected to the hot end inlet of the plate heat exchanger through a pipe, and the cold end inlet of the plate heat exchanger is connected to the water outlet of the cooling water circulation pump through a pipe. The water inlet of the cooling water circulation pump is connected to the water receiving tank through a pipe, and the cold end outlet of the plate heat exchanger is connected to the water distributor through a pipe. The fan, the cooling water circulation pump, the electric three-way valve, the pre-cooling circulation pump and the controller are electrically connected.
4. The liquid-cooled container data center according to claim 3, characterized in that: The liquid-cooled server cabinet includes a cabinet, a server, a liquid-cooled cold plate and a liquid-cooling pump. The server is placed on a shelf of the cabinet. The liquid-cooled cold plate is in close contact with the server for heat conduction. The water inlet of the liquid-cooling pump is connected to the water outlet of the pre-cooling surface cooler through a pipe. The water outlet of the liquid-cooling pump is connected to the liquid inlet of the liquid-cooled cold plate through a pipe. The liquid outlet of the liquid-cooled cold plate is connected to the water inlet of the high-temperature return water surface cooler through a pipe. The liquid cooling pump is electrically connected to the controller.
5. The liquid-cooled container data center according to claim 4, characterized in that: The room air conditioner includes a shell, a heat exchange coil and a cold water pump. The heat exchange coil is located in the shell. The water inlet of the cold water pump is connected to the hot end outlet of the plate heat exchanger through a pipe. The water outlet of the cold water pump is connected to the liquid inlet end of the heat exchange coil through a pipe. The liquid outlet end of the heat exchange coil is connected to the water inlet end of the high-temperature return water cooler through a pipe. The cold water pump is electrically connected to the controller.