Data center river water natural cooling system

Abstract

The application belongs to the technical field of process cooling water, and proposes a data center river water natural cooling system, which comprises a river water taking system, a water taking pipeline (4), a sedimentation tank (5), a water taking pump house (7), a river water treatment device, a conveying pipeline (12) and a heat exchange device, wherein the river water taking system is arranged on the river bank; the water taking pipeline is connected between the river water taking system and the sedimentation tank; the water taking pump house is connected between the sedimentation tank and the river water treatment device; the river water treatment device is connected with the heat exchange device through the conveying pipeline; and the heat exchange device is connected with a drainage pipeline and a chilled water pipeline of a data center cold station. The system utilizes low-temperature river water in winter and in the transition seasons of spring and autumn as a natural cold source to obtain low-temperature chilled water through the water taking system, the river water treatment, the river water conveying system and the heat exchange device, so that the chilled water unit and part of the refrigeration auxiliary equipment are replaced to run, energy saving effect is obtained, and the operation cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of process cooling water technology, specifically relating to a natural cooling system for data centers using river water. Background Technology

[0002] Data centers contain a dense concentration of IT equipment such as servers, which generate significant heat during operation. This necessitates powerful air conditioning systems to dissipate heat promptly and ensure stable equipment operation, resulting in these systems operating under high load for extended periods. Air conditioning systems account for approximately 40% of the total energy consumption of a data center. Data centers require continuous operation 24 / 7, 365 days a year, and the air conditioning systems must also operate continuously to maintain the room's temperature and relative humidity within specific ranges. Chillers and their associated auxiliary equipment continuously supply low-temperature circulating water to the air conditioning systems. The operation of these chillers, along with their associated chilled water pumps, cooling water pumps, and cooling towers, results in high energy consumption and operating costs. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies, this application discloses a natural cooling system for data centers using river water. The technical solution of this application is as follows: A data center river water natural cooling system, characterized in that it includes a river water intake system, a water intake pipeline 4, a sedimentation tank 5, a water intake pumping station 7, a river water treatment device, a transmission pipeline 12, and a heat exchange device, wherein: The river water intake system is located on the bank of the riverbank 2 and is used to draw water from the riverbank and filter the river water. The water intake pipe 4 is connected between the river water intake system and the sedimentation tank 5, and is used to draw the filtered river water from the river water intake system to the sedimentation tank 5. The water intake pumping station 7 is connected between the sedimentation tank 5 and the river water treatment device, and is used to pump the river water from the sedimentation tank to the river water treatment device. The river water treatment device is connected to the heat exchange device via the delivery pipeline 12; The heat exchange device is connected to the drainage pipe 25 and the chilled water pipe of the data center cold station.

[0004] Specifically, the riverbank 2 is the river channel adjacent to the data center.

[0005] Specifically, the river water intake system has a semi-enclosed water intake structure 1. The water intake structure 1 is equipped with a coarse screen 1-1, a water intake channel 1-2, pebbles 1-3, a fixed filter screen 1-4, a gate 1-5, a rotating filter screen 1-6, a rotating filter screen backwash pump 1-7, and an outlet 1-8. The fixed filter screen 1-4 divides the space of the water intake structure 1 into two parts: a front section and a rear section. In the front section, the coarse screen 1-1 is set along the riverbank 2 at the beginning of the water intake channel 1-2, the bottom of the water intake channel 1-2 is paved with pebbles 1-3, and the fixed filter screen 1-4 is set at the end of the water intake channel 1-2. In the rear section, the gate 1-5, the rotating filter screen 1-6, the rotating filter screen backwash pump 1-7 for cleaning the rotating filter screen 1-6, and the outlet 3 are arranged sequentially on the right side of the fixed filter screen 1-4.

[0006] Specifically, the water intake pipe 4 is connected at both ends to the outlet 3 of the river water intake system and the inlet 6 of the sedimentation tank 5, respectively. The outlet 3 of the river water intake system is positioned higher than the inlet 6 of the sedimentation tank 5, forming a slope to facilitate the flow of river water from high to low into the sedimentation tank 5.

[0007] Specifically, a water intake pump 9 is installed in the water intake pump room 7. The inlet of the water intake pump 9 is connected to the sedimentation tank 5 below the liquid level through the water intake pump inlet pipe 8, and the outlet of the water intake pump 9 is connected to the river water treatment device through the water intake pump outlet pipe 10.

[0008] Specifically, the river water treatment device includes a self-cleaning filter 11, the inlet of which is connected to the water outlet pipe 10 of the water intake pump, and the outlet of which is connected to the delivery pipeline 12.

[0009] Specifically, the heat exchange device is installed in the data center cold station 13, and the data center cold station 13 is also equipped with a chiller evaporator; The heat exchange device is a plate heat exchanger 14; the plate heat exchanger 14 is provided with a primary side water inlet pipe 15, a primary side water outlet pipe 16, a secondary side water inlet pipe 18 and a secondary side water outlet pipe 20, wherein: the primary side water inlet pipe 15 is connected to the conveying pipeline 12, the primary side water outlet pipe 16 is connected to the drain pipe 25; the secondary side water inlet pipe 18 is connected to the chilled water return main pipe 23 of the machine room, the secondary side water outlet pipe 20 is connected to the evaporator water inlet pipe 21 of the chiller unit evaporator inlet, and the chiller unit evaporator outlet is connected to the chilled water supply main pipe 24.

[0010] Furthermore, a connecting passage 19 is provided between the secondary side inlet pipe 18 and the secondary side outlet pipe 20 of the plate heat exchanger 14. An electric three-way valve 17 is provided at the connection point of the chilled water return main pipe 23 in the machine room, the secondary side inlet pipe 18, and the connecting passage 19. The electric three-way valve 17 includes three ports: A, B, and C. Port A is connected to the chilled water return main pipe 23 in the machine room, port B is connected to the secondary side inlet pipe 18, and port C is connected to the connecting passage 19. The corresponding connection methods are as follows: when AB is connected, the chilled water return enters the plate heat exchanger 14 through the secondary side inlet pipe 18 for heat exchange; when AC is connected, the chilled water return does not enter the plate heat exchanger 14 for heat exchange.

[0011] Based on the above technology, this application has the following beneficial effects: This application proposes a natural river water cooling system for data centers. It utilizes the low-temperature river water during the winter and spring-autumn transition seasons as a natural cold source. After passing through a water intake system, river water treatment, river water transportation system, and heat exchange device, it obtains low-temperature chilled water, which replaces the operation of chiller units and some refrigeration auxiliary equipment, thereby achieving energy-saving effects and reducing operating costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a river water natural cooling system as an example.

[0013] Figure 2 for Figure 1 AA section view of the water intake structure in the middle.

[0014] Figure 3 for Figure 1 Enlarged view of the water intake structure in the image.

[0015] Figure 4 for Figure 1 Enlarged view of the cold storage station.

[0016] Marker explanation: 1. Water intake structure; 1-1. Coarse screen; 1-2. Water diversion channel; 1-3. Pebbles; 1-4. Fixed filter screen; 1-5. Gate; 1-6. Rotary filter screen; 1-7. Rotary filter screen backwash pump. 2. Riverbank, 3. Water outlet, 4. Water intake pipe 5. Sedimentation tank; 6. Sedimentation tank inlet; 7. Water intake pump room; 8. Water intake pump inlet pipe; 9. Water intake pump; 10. Water intake pump outlet pipe; 11. Self-cleaning filter; 12. Delivery pipeline. 13 Chilling plant, 14 Plate heat exchanger, 15 Primary side inlet pipe, 16 Primary side outlet pipe, 17 Electric three-way valve, 18 Secondary side inlet pipe, 19 Connecting passage, 20 Secondary side outlet pipe, 21 Evaporator inlet pipe, 22 Chiller unit, 22-1 Evaporator of chiller unit, 23 Chilled water return main pipe, 24 Chilled water supply main pipe, 25 Drain pipe. 26 landscape pools, 27 landscape waterways. Detailed Implementation

[0017] The technical solutions provided in this application will be further described below with reference to specific embodiments and accompanying drawings. The advantages and features of this application will become clearer from the following description.

[0018] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the data center river water natural cooling system includes a river water intake system, water intake pipes 4, sedimentation tank 5, water intake pump house 7, river water treatment device, transmission pipeline 12, and heat exchange device, wherein: The river water intake system is located on the bank of the riverbank 2 and is used to draw water from the riverbank 2 and filter the river water. The water intake pipe 4 is connected between the river water intake system and the sedimentation tank 5, and is used to draw the filtered river water from the river water intake system to the sedimentation tank 5. The water intake pumping station 7 is connected between the sedimentation tank 5 and the river water treatment device, and is used to pump the river water from the sedimentation tank 5 to the river water treatment device. The river water treatment device is connected to the heat exchange device via the delivery pipeline 12; The heat exchange device is connected to the drainage pipe 25 and the chilled water pipe of the data center cold station.

[0019] Specifically, the riverbank 2 is a river channel adjacent to the data center, with sufficient water flow.

[0020] Specifically, the river water intake system comprises a semi-enclosed intake structure 1, which includes a coarse screen 1-1, a water intake channel 1-2, pebbles 1-3, a fixed filter screen 1-4, a gate 1-5, a rotating filter screen 1-6, a rotating filter screen backwash pump 1-7, and an outlet 1-8. The fixed filter screen 1-4 divides the intake structure 1 into a front intake section and a rear intake section. In the front intake section, the coarse screen 1-1 is installed along the riverbank 2 at the beginning of the water intake channel 1-2, the bottom of the water intake channel 1-2 is covered with pebbles 1-3, and the fixed filter screen 1-4 is installed at the end of the water intake channel 1-2. In the rear intake section, the gate 1-5, the rotating filter screen 1-6, the rotating filter screen backwash pump 1-7 for cleaning the rotating filter screen 1-6, and the outlet 3 are sequentially arranged on the right side of the fixed filter screen 1-4.

[0021] The water flow pattern within the river water intake system is as follows: First, the river water is filtered through a coarse screen 1-1, where large suspended solids are blocked outside the screen. Next, it enters the water intake channel 1-2, where the water flows over pebbles 1-3 at the bottom, and some impurities settle at the bottom of the pebbles. Then, the water passes through a fixed filter screen 1-4, where larger suspended solids are filtered. Finally, the water flows through a gate 1-5 and enters a rotating filter screen 1-6 for further filtration, where smaller suspended solids are filtered. After the above three filtrations and one sedimentation, the water exits from the outlet 3 and enters the water intake pipe 4.

[0022] The gates 1-5 are set to open or close according to the water intake needs of the river: when water needs to be drawn from the river during the spring and autumn transition seasons and winter, gates 1-5 are in the open state; when water intake is not needed in summer, gates 1-5 are in the closed state.

[0023] The rotating filter screens 1-6 are automatically rotating filter screens that do not require manual intervention. Depending on the degree of clogging of the rotating filter screens 1-6, the rotating filter screen backwashing water pump 1-7 will automatically start to rinse the filter screens.

[0024] The river water intake system treats the river water in four stages: coarse screen filtration, pebble sedimentation, fixed filter screen filtration, and rotating filter screen filtration.

[0025] Specifically, the water intake pipe 4 is connected at both ends to the outlet 3 of the river water intake system and the inlet 6 of the sedimentation tank 5, respectively. The outlet 3 of the river water intake system is positioned higher than the inlet 6 of the sedimentation tank 5, forming a slope to facilitate the flow of river water from a higher to a lower elevation into the sedimentation tank 5. As an example, the canal water pipe 4 is a reinforced concrete pipe with a slope of 1 / 100. The river water flows from a higher to a lower elevation through the sloped reinforced concrete pipe to the inlet 6 of the sedimentation tank 5 and enters the sedimentation tank 5.

[0026] Specifically, a water intake pump 9 is installed in the water intake pump room 7. The inlet of the water intake pump 9 is connected to the sedimentation tank 5 below the liquid level through the water intake pump inlet pipe 8, and the outlet of the water intake pump 9 is connected to the river water treatment device through the water intake pump outlet pipe 10.

[0027] Specifically, the river water treatment device is used for further filtration of river water, including a self-cleaning filter 11. The inlet of the self-cleaning filter 11 is connected to the outlet pipe 10 of the water intake pump, and its outlet is connected to the delivery pipeline 12. The self-cleaning filter 11 is a commonly used device in the water treatment industry, requiring no manual intervention and automatically cleaning itself based on the filter pressure differential.

[0028] As an example, the sedimentation tank 5 and the water intake pump room 7 are located in the courtyard outside the data center cold station 13. The river water pumping and water treatment process is as follows: the water intake pump inlet pipe 8 is connected to the sedimentation tank 5 below the liquid level, and water is drawn from the sedimentation tank 5. After the river water is pressurized by the water intake pump 9, it enters the self-cleaning filter 11 for further filtration through the water intake pump outlet pipe 10, and then enters the heat exchange device in the data center cold station through the conveying pipeline 12.

[0029] Specifically, the heat exchange device is installed inside the data center chiller station 13, which also houses a chiller evaporator. The heat exchange device is a plate heat exchanger 14. The plate heat exchanger 14 has a primary side inlet pipe 15, a primary side outlet pipe 16, a secondary side inlet pipe 18, and a secondary side outlet pipe 20. The primary side inlet pipe 15 is connected to the delivery pipeline 12, and the primary side outlet pipe 16 is connected to the drain pipe 25. The secondary side inlet pipe 18 is connected to the chilled water return main pipe 23 of the computer room, and the secondary side outlet pipe 20 is connected to the evaporator inlet pipe 21 of the chiller evaporator. The chiller evaporator outlet is connected to the chilled water supply main pipe 24.

[0030] In this embodiment, the drain pipe 25 is connected to the landscape pool 26, and the landscape pool 26 is connected to the river outside the data center via the landscape waterway 27. The heat exchange operation mode is as follows: After being filtered by the self-cleaning filter 11, the river water enters the plate heat exchanger 14 through the primary side inlet pipe 15. In the plate heat exchanger 14, it exchanges heat with the higher-temperature chilled water return water, raising the river water temperature. Then, it flows out through the primary side outlet pipe 16 and returns to the landscape pool 26 through the drain pipe 25. After dissipating a certain amount of heat in the landscape pool 26, it is discharged into the river outside the data center through the landscape river channel 27.

[0031] Furthermore, a connecting passage 19 is provided between the secondary side inlet pipe 18 and the secondary side outlet pipe 20 of the plate heat exchanger 14. An electric three-way valve 17 is provided at the connection point of the chilled water return main pipe 23 in the machine room, the secondary side inlet pipe 18, and the connecting passage 19. The electric three-way valve 17 includes three ports: A, B, and C. Port A is connected to the chilled water return main pipe 23 in the machine room, port B is connected to the secondary side inlet pipe 18, and port C is connected to the connecting passage 19. The corresponding connection methods are as follows: when AB is connected, the chilled water return enters the plate heat exchanger 14 through the secondary side inlet pipe 18 for heat exchange; when AC is connected, the chilled water return does not enter the plate heat exchanger 14 for heat exchange.

[0032] Based on the temperature characteristics of different seasons, different cooling methods are achieved by changing the connection path of the electric three-way valve 17, specifically: In winter, the electric three-way valve 17 is set with AB passages. The higher temperature chilled water return water enters the AB passage of the electric three-way valve 17 through the chilled water return main pipe 23, and then enters the plate heat exchanger through the secondary side inlet pipe 18 to exchange heat with the low temperature river water. The chilled water is cooled to the supply water temperature. The low temperature chilled water comes out from the secondary side outlet pipe 20, passes through the evaporator inlet pipe 21 and enters the chiller evaporator 22-1. After coming out of the evaporator 22-1, it enters the chilled water supply main pipe 24. During this process, the chiller unit does not operate, and the river water is cooled naturally.

[0033] During the spring and autumn transition season, the AB passage of the electric three-way valve 17 is controlled. The higher temperature chilled water return water enters the AB passage of the electric three-way valve 17 through the chilled water return main pipe 23, and then enters the plate heat exchanger 14 through the secondary side inlet pipe 18 to exchange heat with the low temperature river water. The chilled water is then cooled to a certain temperature. The lower temperature chilled water comes out from the secondary side outlet pipe 20, passes through the evaporator inlet pipe 21, and enters the chiller unit evaporator 22-1 to be further cooled to the supply water temperature. After coming out of the evaporator 22-1, it enters the chilled water supply main pipe 24. During this process, the chiller unit is running, and the river water is partially cooled naturally.

[0034] In summer, the AC passage of the electric three-way valve 17 is controlled. The high-temperature chilled water return water enters the AC passage of the electric three-way valve 17 through the chilled water return main pipe 23, and then enters the evaporator evaporator 22-1 of the chiller unit through the evaporator inlet pipe 21 to be cooled to the supply water temperature. After exiting the evaporator 22-1, it enters the chilled water supply main pipe 24. This process is only performed by the chiller unit and there is no natural cooling by river water.

[0035] Furthermore, the number of rotary filter backwash water pumps 1-7, water intake pumps 9, and self-cleaning filters 11 is set according to actual needs. As an example, five chiller units 22 are installed in the data center cooling station, and the river water natural cooling system is equipped with two rotary filter backwash water pumps 1-7, three water intake pumps 9, and three self-cleaning filters 11.

[0036] This utility model is applicable to industrial sectors or data centers in the Yangtze River basin or regions north of the Yangtze River, such as East China, North China, Northwest China, and Northeast China, where traditional chiller units are still used to supply chilled water in winter, and where there is sufficient surface water near the building.

[0037] The above description is merely a description of preferred embodiments of this application and is not intended to limit the scope of this application in any way. Any changes or modifications made by those skilled in the art based on the above-disclosed technical content should be considered as equivalent and valid embodiments and fall within the scope of protection of the technical solution of this application.

Claims

1. A natural river water cooling system for a data center, characterized in that, Includes a river water intake system, water intake pipeline (4), sedimentation tank (5), water intake pumping station (7), river water treatment equipment, transmission pipeline (12), and plate heat exchanger (14), wherein: The river water intake system is located on the bank of the river (2), and its structure is a semi-enclosed water intake structure (1). The water intake structure (1) is equipped with a coarse screen (1-1), a water diversion channel (1-2), pebbles (1-3), a fixed filter screen (1-4), a gate (1-5), a rotating filter screen (1-6), a rotating filter screen backwash pump (1-7), and a water outlet (3). The fixed filter screen (1-4) divides the space of the water intake structure (1) into two parts: a water intake front section and a water intake rear section. In the water intake section, a coarse screen (1-1) is set at the beginning of the water intake channel (1-2) along the riverbank (2), and cobblestones (1-3) are laid at the bottom of the water intake channel (1-2). A fixed filter screen (1-4) is set at the end of the water intake channel (1-2). In the water intake section, a gate (1-5), a rotating filter screen (1-6), a rotating filter screen backwash pump (1-7) for cleaning the rotating filter screen (1-6), and a water outlet (3) are set in sequence on the right side of the fixed filter screen (1-4). The water intake pipe (4) is connected between the river water intake system and the sedimentation tank (5) and is used to bring the filtered river water from the river water intake system to the sedimentation tank (5). The water intake pump house (7) is connected between the sedimentation tank (5) and the river water treatment device. The water intake pump house (7) is equipped with a water intake pump (9). The inlet of the water intake pump (9) is connected to the sedimentation tank (5) below the liquid level through the water intake pump inlet pipe (8). The outlet of the water intake pump (9) is connected to the river water treatment device through the water intake pump outlet pipe (10). The river water treatment device includes a self-cleaning filter (11), the inlet of which is connected to the water outlet pipe (10) of the water intake pump, and its outlet is connected to the delivery pipeline (12). The plate heat exchanger (14) is installed in the data center chiller station (13). The primary side inlet pipe (15) of the plate heat exchanger (14) is connected to the conveying pipeline (12), and the primary side outlet pipe (16) is connected to the drain pipe (25). The secondary side inlet pipe (18) is connected to the chilled water return main pipe (23) of the computer room, and the secondary side outlet pipe (20) is connected to the evaporator inlet pipe (21) of the chiller unit evaporator.

2. The data center river water natural cooling system as described in claim 1, characterized in that, A connecting passage (19) is provided between the secondary side inlet pipe (18) and the secondary side outlet pipe (20) of the plate heat exchanger (14). An electric three-way valve (17) is provided at the connection of the chilled water return main pipe (23), the secondary side inlet pipe (18), and the connecting passage (19) in the machine room. The electric three-way valve (17) includes three ports: A, B, and C. Port A is connected to the chilled water return main pipe (23) in the machine room, port B is connected to the secondary side inlet pipe (18), and port C is connected to the connecting passage (19). The corresponding connection methods are as follows: when AB is connected, the chilled water return water enters the plate heat exchanger (14) through the secondary side inlet pipe (18) for heat exchange; when AC is connected, the chilled water return water does not enter the plate heat exchanger (14) for heat exchange.

Images