Circulating water cooling system for electronic equipment

Abstract

The utility model discloses a circulating water cooling system for electronic equipment. The circulating water cooling system comprises a cooling water tower, a water chilling unit, a hot water pipe, a cold water pipe, a water pump and a flow control valve, the cooling water tower is provided with a water inlet and a water outlet, and the water inlet and the water outlet are connected with the electronic equipment heat exchanger through pipelines; the water chilling unit comprises a condenser, an evaporator and a compressor; the evaporator is connected with the cooling water tower through a cooling water inlet and a cooling water outlet, and the evaporator is connected with the compressor through a refrigerant pipe I and connected with the condenser through a refrigerant pipe II. A drying filter and an expansion valve are arranged on the refrigerant pipe II; the compressor is connected with the condenser through a refrigerant pipe III; according to the system, on one hand, water resources are effectively utilized through the circulating water cooling system, water cost is saved for enterprises, consumption and pollution of the water resources are reduced, and on the other hand, when the temperature of the cooling water is high, the water temperature of the cooling water is rapidly reduced through the water chilling unit, so that the cooling water works within the set temperature range.

Description

Technical Field

[0001] This utility model relates to the field of electronic device cooling systems, and specifically to an electronic device circulating water cooling system. Background Technology

[0002] Large electronic devices are typically high-powered, generating significant amounts of heat during operation. For example, data center servers and high-performance computers can consume kilowatts or even more. Traditional air-cooling methods often struggle to meet the demands of such high heat output. Water-cooling systems, however, offer significantly higher cooling efficiency, effectively and rapidly dissipating this substantial amount of heat.

[0003] Traditional industrial water cooling systems waste water by directly discharging hot water after cooling electronic equipment. In contrast, a circulating water cooling system uses a pump to circulate water. As the water passes through the heat exchanger of the electronic equipment, it absorbs heat from the heat-generating components, increasing its temperature before flowing back to the heat exchanger. There, the heat is transferred to the heat exchanger, which then dissipates the heat into the surrounding air, lowering the water temperature. The cooled water then flows back to the electronic equipment to continue absorbing heat, creating a continuous cycle that keeps the electronic equipment operating within a suitable temperature range. However, this cooling method has limitations. Because the heat exchanger's efficiency with the air is limited, the circulating cooling water temperature may exceed the required temperature, resulting in ineffective cooling. Utility Model Content

[0004] In view of this, the purpose of this utility model is to develop an electronic device circulating water cooling system. On the one hand, the circulating water cooling system effectively utilizes water resources, saving water costs for enterprises and reducing water consumption and pollution. On the other hand, when the cooling water temperature is high, the chiller unit quickly lowers the cooling water temperature, so that the cooling water operates within the set temperature range.

[0005] This utility model discloses an electronic device circulating water cooling system, comprising a cooling tower, a chiller unit, hot water pipes, cold water pipes, a water pump, and a flow control valve. The cooling tower has an inlet and an outlet, which are connected to the electronic device heat exchanger via pipelines. The chiller unit includes a condenser, an evaporator, and a compressor. The evaporator is connected to the cooling tower via a cooling water inlet and a cooling water outlet, respectively. The evaporator is connected to the compressor via refrigerant pipe I and to the condenser via refrigerant pipe II. A dryer filter and an expansion valve are provided on refrigerant pipe II. The compressor is connected to the condenser via refrigerant pipe III. The water pump and the flow control valve are installed in the pipeline between the cooling tower and the chiller unit evaporator.

[0006] In one feasible implementation, a cooling fan is also provided at the top of the cooling tower.

[0007] In one feasible implementation, the upper part of the cooling tower is provided with an annular spray pipe connected to the water inlet, and several nozzles are distributed on the spray pipe.

[0008] In one feasible implementation, the cooling tower is equipped with several thermometers and level gauges to monitor the water temperature and level in the tower in real time.

[0009] In one feasible implementation, the flow control valve includes a valve body, a valve disc, a valve stem, a servo motor, and an angular displacement sensor; the valve stem is fixedly connected to the valve disc, and the servo motor is located at the bottom of the valve body and connected to the valve stem to drive the valve stem to rotate, thereby rotating the valve disc to adjust the opening and closing of the control valve and the opening degree; the angular displacement sensor is located above the valve stem and obtains the valve disc opening degree by detecting the amount of rotation of the valve stem.

[0010] In one feasible implementation, the cooling tower is also provided with a water inlet.

[0011] In one feasible implementation, a filter is also provided in the pipeline between the cooling tower and the chiller evaporator.

[0012] The beneficial effects of this invention are as follows: The electronic equipment circulating water cooling system of this invention circulates cooling water between the cooling tower and the electronic equipment heat exchanger through a circulating pump, avoiding water waste. When the cooling water temperature is low, the cooling water can be evaporated and dissipated by the cooling fan in the cooling tower in conjunction with the spray system. When the cooling water temperature is high, the chiller unit is started, and the flow rate of cooling water entering the cooling tower is controlled by controlling the opening of the flow control valve, ultimately achieving precise control of the water temperature in the cooling tower. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0014] Figure 1 This is a schematic diagram of the system connection structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the water-cooled unit of this utility model;

[0017] Figure 4 This is a schematic diagram of the cooling water tower of this utility model;

[0018] Figure 5 This is a schematic diagram of the flow control valve of this utility model. Detailed Implementation

[0019] like Figure 1 As shown, an electronic device circulating water cooling system according to this embodiment includes a cooling tower 1, a chiller unit, hot water pipes, cold water pipes, a water pump 3, and a flow control valve 5.

[0020] The cooling tower 1 is equipped with an inlet and an outlet, which are connected to the electronic equipment heat exchanger via pipelines. Cooling water from the electronic equipment heat exchanger flows into the cooling tower 1 through the inlet, and cooling water in the cooling tower 1 is input into the electronic equipment heat exchanger through the outlet to provide cooling for the electronic equipment. Figure 4 As shown, the water inlet is located at the top of the cooling tower 1, while the drain outlet is located at the bottom. A ring-shaped spray pipe 17, connected to the water inlet, is located in the upper part of the cooling tower 1. Several nozzles 19 are distributed on the spray pipe 17. A cooling fan 18 is also installed at the top of the cooling tower 1. Cooling water from electronic equipment enters the spray pipe 17 through the water inlet and is sprayed out by the nozzles 19. Combined with the cooling fan 18 above, this increases the evaporation rate of the water in the cooling tower 1, thereby removing heat from the cooling water. Several thermometers and level gauges are installed inside the cooling tower 1 to monitor the water temperature and level in real time. The cooling tower 1 is also connected to a chiller unit via cooling water pipes and hot water pipes. When the water temperature in cooling tower 1 exceeds a set threshold, control valve 5 in the pipeline between cooling tower 1 and the chiller unit opens, and the water-cooled unit 2 starts working, forcibly cooling the water in cooling tower 1 before introducing it into cooling tower 1, thereby ensuring that the water temperature in cooling tower 1 remains within the set range. The cooling tower 1 is also equipped with a water inlet; when the cooling water level falls below the set value, water should be added through the inlet. A filter is also installed in the pipeline between cooling tower 1 and the chiller unit evaporator 7. The filter removes impurities from the cooling water, preventing pipeline blockages and other malfunctions.

[0021] like Figure 3 As shown, the chiller unit includes a condenser 9, an evaporator 7, and a compressor 11. The evaporator 7 is connected to the cooling tower 1 via a cooling water inlet 12 and a cooling water outlet 13. The evaporator 7 is connected to the compressor 11 via a refrigerant pipe I 8 and to the condenser 9 via a refrigerant pipe II 15. A dryer filter 14 and an expansion valve 6 are provided on the refrigerant pipe II 15. The compressor 11 is connected to the condenser 9 via a refrigerant pipe III 10. The refrigerant absorbs heat from the cooling water in the evaporator 7 and vaporizes. The cooling water is forcibly cooled and discharged into the cooling tower 1. The compressor 11 continuously extracts the generated refrigerant gas from the evaporator 7 and compresses it into high-temperature, high-pressure steam. The refrigerant steam is sent to the condenser 9 and exchanges heat with the air. After releasing heat, it condenses into a liquid. After being depressurized by the expansion valve 6, it enters the evaporator 7, vaporizes again, and absorbs heat from the cooling water. This cycle repeats continuously.

[0022] like Figure 2 As shown, a water pump 3, a flow meter 4, and a flow control valve 5 should be installed in the pipeline between the cooling tower 1 and the evaporator 7. The water pump 3 should be a variable displacement pump to control the flow rate of the cooling water in the pipeline. Figure 5 As shown, the flow control valve 5 includes a valve body 23, a valve disc 21, a valve stem, a servo motor 22, and an angular displacement sensor 20. The valve stem is fixedly connected to the valve disc 21. The servo motor 22 is located at the bottom of the valve body 23 and connected to the valve stem to drive the valve stem to rotate, thereby rotating the valve disc 21 and adjusting the opening and closing of the control valve 5 and the size of its opening. The angular displacement sensor 20 is located above the valve stem and obtains the opening size of the valve disc 21 by detecting the amount of rotation of the valve stem.

[0023] The cooling tower 1 is equipped with two thermometers. Real-time monitoring of the water temperature in the pool is used to control the opening and closing of the flow control valve 5 via a PID-based control system. The average water temperature is measured using two temperature sensors. When both the average value and the individual values ​​from the two sensors are greater than 25°C, the valve is fully open. If the temperature is less than 25°C, the valve 5 is rotated 60°, or one-third open. The temperature of the water in the cooling tower 1 is controlled by regulating the flow rate of the cooling water returning to the cooling tower 1 after being cooled by the chiller unit, thus enabling the water to be recycled.

[0024] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.

Claims

1. A circulating water cooling system for electronic devices, characterized in that: The system includes a cooling tower, a chiller unit, hot water pipes, cold water pipes, a water pump, and a flow control valve. The cooling tower has an inlet and an outlet, which are connected to an electronic heat exchanger via pipes. The chiller unit includes a condenser, an evaporator, and a compressor. The evaporator is connected to the cooling tower via a cooling water inlet and a cooling water outlet, and is connected to the compressor via refrigerant pipe I and to the condenser via refrigerant pipe II. A dryer filter and an expansion valve are installed on refrigerant pipe II. The compressor is connected to the condenser via refrigerant pipe III. The water pump and flow control valve are installed in the pipes between the cooling tower and the chiller unit evaporator.

2. The electronic device circulating water cooling system according to claim 1, characterized in that: The cooling tower is also equipped with a cooling fan at the top.

3. The electronic device circulating water cooling system according to claim 2, characterized in that: The upper part of the cooling tower is equipped with a ring-shaped spray pipe connected to the water inlet, and several nozzles are distributed on the spray pipe.

4. The electronic device circulating water cooling system according to claim 3, characterized in that: The cooling tower is equipped with several thermometers and level gauges to monitor the water temperature and level in real time.

5. The electronic device circulating water cooling system according to claim 4, characterized in that: The flow control valve includes a valve body, a valve disc, a valve stem, a servo motor, and an angular displacement sensor. The valve stem is fixedly connected to the valve disc, and the servo motor is located at the bottom of the valve body and connected to the valve stem to drive the valve stem to rotate, thereby rotating the valve disc and adjusting the opening and closing of the control valve and the opening degree. The angular displacement sensor is located above the valve stem and obtains the valve disc opening degree by detecting the amount of rotation of the valve stem.

6. The electronic device circulating water cooling system according to claim 5, characterized in that: The cooling tower is also equipped with a water inlet.

7. The electronic device circulating water cooling system according to claim 6, characterized in that: A filter is also installed in the pipeline between the cooling tower and the evaporator of the chiller unit.

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