CN211452868U - Server liquid cooling performance test bench capable of applying various cooling media - Google Patents

Abstract

The server liquid cooling performance test bench that can apply various cooling media, consists of a liquid storage tank (1), a filter (2), a liquid pump (3), a safety valve (4), a flow control valve (5), an electronic flow meter (6), start-stop valve (7), heat exchanger (8), simulation server (9), constant temperature water bath (10), wireless data acquisition instrument (11), first thermocouple (12), second thermocouple Couple (13), third thermocouple (14), fourth thermocouple (15), fifth thermocouple (16), sixth thermocouple (17), seventh thermocouple (18), eighth thermocouple ( 19), a first heating rod (20), a second heating rod (21), and a power supply (22). The heat source server is simulated according to the size of 1:1. The liquid in the liquid storage tank (1) flows through the liquid pump (3) through the heat exchanger (8) to exchange heat with the simulated server (9), and returns to the storage liquid through the constant temperature water bath (10). Box (1).

Description

Server liquid cooling performance test bench that can apply various cooling media

technical field

The utility model relates to a server liquid cooling performance test bench capable of applying various cooling media, belonging to the research field of cooling performance of a data computer room.

Background technique

With the construction of a network powerhouse, digital China, a smart society, the Internet of Things, the deep integration of big data and the real economy, and the innovation of data generation, storage, and computing technologies, the interconnection between massive data and between devices will surely be realized. A data center is the basic physical unit that carries data and is loaded with a large number of IT equipment. Its energy density is several times or even dozens of times that of traditional buildings. Among them, large-scale data cabinets can generate up to 3kW of heat, and the unit heat flux density can reach 8000W/m ² . How to effectively handle the heat dissipation of the cabinets has become an urgent problem to be solved.

At present, the commonly used server cooling method is air cooling. With the development of information technology, the shortcomings of air cooling are becoming more and more obvious. Its heat dissipation capacity is low, and the maximum heat flux density can only reach 250W/cm ² , which cannot meet the cooling requirements of servers. , prone to local overheating. At the same time, liquid cooling technology is gradually popularized. Compared with air cooling, the density, specific heat and thermal conductivity of liquid coolant are much larger than those of air, and the heat dissipation performance is more superior. The maximum heat flux density can reach 1000W/cm ² . At present, the liquid cooling system suitable for the cooling of the server in the computer room has been continuously designed, such as the patent CN108598055A, the radiator and the complete set of devices suitable for the cooling of the chip in the data computer room, and the Y-shaped liquid cooling radiator of the structure theory is adopted to minimize the resistance of the system The device can not only be used for heat dissipation of the host in one cabinet, but also for the chip heat dissipation of the host in multiple cabinets; patent CN203982297U proposes a water-cooled back-plate heat exchanger and its performance testing system When the back plate heat exchanger is working, the cooling water enters each heat exchanger through the water inlet main pipe, absorbs the air heat of the swept fins, and leaves the back plate heat exchanger after being collected by the water outlet main pipe, and the hot air flows through the back plate for heat exchange. can reach lower temperature levels. The above systems are all in the laboratory research stage, subject to the safe operation of the data room environment, it is difficult for such new technologies to enter the actual computer room for field tests. From the perspective of simulation experiments, it is found that there is currently no test bed for performance testing with a 1:1 model with the real server as a heat source.

The utility model adopts the copper block of the same size as the server cabinet, and the heating rod is installed inside to connect the power supply, which can simulate the real heat generation of the server; the arrangement of the inlet and outlet of the heat exchanger on the server surface and the size of the internal channel can be carried out according to different experimental requirements. Replacement, different cooling media can be used in the test bench for liquid cooling experiments, such as water, salt solution, etc.; the flow control valve matched with the test bench can be used to adjust the liquid flow, the constant temperature water bath can adjust the inlet temperature of the cooling liquid, the test bench The adjustment parameters are convenient and the operation is safe; it provides a reliable test platform for the design and optimization of the server cooling liquid cooling system.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a server liquid cooling performance test bench capable of applying various cooling media.

The test bench is mainly composed of a liquid storage tank 1, a filter 2, a liquid pump 3, a safety valve 4, a flow regulating valve 5, an electronic flow meter 6, a start-stop valve 7, a heat exchanger 8, a simulation server 9, and a constant temperature water bath 10. , wireless data acquisition instrument 11, first thermocouple 12, second thermocouple 13, third thermocouple 14, fourth thermocouple 15, fifth thermocouple 16, sixth thermocouple 17, seventh thermocouple 18, Eight thermocouples 19, a first heating rod 20, a second heating rod 21, and a power supply 22;

The outlet of the liquid storage tank 1 is connected to the liquid pump 3 through the filter 2, and the first outlet of the liquid pump 3 is connected to the inlet of the heat exchanger 8 through the flow regulating valve 5, the electronic flow meter 6, and the start-stop valve 7. The heat exchanger 8 Close to the surface of the simulation server 9, the outlet of the heat exchanger 8 is connected to the inlet of the constant temperature water bath 10, the second outlet of the liquid pump 3 is connected to the liquid storage tank 1 through the safety valve 4, and the first thermocouple 12 is installed at the starter. On the water pipe between the stop valve 7 and the heat exchanger 8, the second thermocouple 13 is installed on the outlet of the heat exchanger 8 and the water pipe of the constant temperature water bath 10, and the third thermocouple 14, The fourth thermocouple 15, the fifth thermocouple 16, the sixth thermocouple 17, the seventh thermocouple 18, the eighth thermocouple 19 are arranged at equal distances in the rear row, the wireless data acquisition instrument 11 and the first thermocouple 12, the second thermocouple The thermocouple 13, the third thermocouple 14, the fourth thermocouple 15, the fifth thermocouple 16, the sixth thermocouple 17, the seventh thermocouple 18, and the eighth thermocouple 19 are connected, and the wireless data acquisition instrument 11 is used to compare the temperature data. Acquisition, the first heating rod 20 and the second heating rod 21 are installed in the simulation server 9 to provide heat for them, and the power supply 22 is connected through copper wires. The front and rear surfaces of the simulation server 9 are arranged in parallel and equidistantly. The third thermocouple 14 , the fourth thermocouple 15 , and the fifth thermocouple 16 are arranged in order to the right, and the sixth thermocouple 17 , the seventh thermocouple 18 , and the eighth thermocouple 19 are arranged in order from left to right in the rear row.

When the heat exchange experiment is carried out with water as the cooling medium, water is added to the constant temperature water bath 10, the temperature of the constant temperature water bath 10 is set, the water satisfying the cooling temperature enters the liquid storage tank 1, and the water in the liquid storage tank 1 passes through the filter 2 Filter impurities, flow into the heat exchanger 8 through the liquid pump 3, the flow regulating valve 5, the electronic flow meter 6, and the start-stop valve 7, and after the heat exchange with the surface of the simulation server 9, the cooling water returns to the constant temperature water bath 10 to complete the entire cycle , the flow control valve 5 can be used to adjust the water flow in the middle, the first thermocouple 12 measures the inlet water temperature of the heat exchanger, the second thermocouple 13 measures the outlet water temperature of the heat exchanger, the third thermocouple 14, the fourth thermocouple 15 , the fifth thermocouple 16 , the sixth thermocouple 17 , the seventh thermocouple 18 , and the eighth thermocouple 19 measure the temperature distribution on the surface of the analog server 9 , and the data is summarized to the wireless data acquisition instrument 11 for output. An external power supply 22 of a heating rod 21 can simulate the heat generation of different data cabinets for the simulation server 9 .

When the heat exchange experiment is carried out with refrigerant as the cooling medium, the refrigerant is encapsulated and then added to a constant temperature water bath 10, the temperature of the constant temperature water bath 10 is set, and the refrigerant satisfying the cooling temperature enters the liquid storage tank 1, and the refrigerant in the liquid storage tank 1 The impurities are filtered through the filter 2, the water in the liquid storage tank 1 is filtered through the filter 2, and flows into the heat exchanger 8 through the liquid pump 3, the flow regulating valve 5, the electronic flow meter 6, and the start-stop valve 7, and passes through the simulation server. The heat exchange on the surface of 9, the refrigerant is returned to the constant temperature water bath 10 to complete the whole cycle, the flow of the refrigerant can be adjusted by the flow control valve 5 in the middle, the first thermocouple 12 measures the inlet refrigerant temperature of the heat exchanger, and the second thermocouple 13 Measure the outlet refrigerant temperature of the heat exchanger, the third thermocouple 14, the fourth thermocouple 15, the fifth thermocouple 16, the sixth thermocouple 17, the seventh thermocouple 18, the eighth thermocouple 19 measure the surface of the simulated server 9 The temperature distribution of the first heating rod 20 and the external power supply 22 of the first heating rod 21 can simulate the calorific value of different data cabinets for the simulation server 9 .

The cooling medium of the test bench can be divided into refrigerant medium and non-refrigerant medium. R11, R22, R134a, FC-72, FC-87 are selected as refrigerant media; water, salt solution and alcohol solution are selected as non-refrigerant media.

The arrangement of the inlet and outlet of the heat exchanger 8 and the size of the internal channel of the test bench are changed according to different experimental requirements.

The first heating rod 20 and the second heating rod 21 are equally spaced in the simulated server 9 of the test bed, and the calorific value of the first heating rod 20 and the second heating rod 21 is equal to the calorific value of the real server.

Description of drawings

Accompanying drawing 1 is the principle diagram of the utility model.

Label names in Figure 1: 1. Liquid storage tank, 2. Filter, 3. Liquid pump, 4. Safety valve, 5. Flow regulating valve, 6. Electronic flowmeter, 7. Start-stop valve, 8. Change Heater, 9. Simulation server, 10. Constant temperature water bath, 11. Wireless data acquisition instrument, 12. First thermocouple, 13. Second thermocouple, 14. Third thermocouple, 15. Fourth thermocouple, 16. Fifth thermocouple, 17. Sixth thermocouple, 18. Seventh thermocouple, 19. Eighth thermocouple, 20. First heating rod, 21. Second heating rod, 22. Power supply.

Figure 2 is a schematic diagram of the heating rod and thermocouple installed inside the simulation server.

Numeral names in Figure 2: 9. Simulation server, 14. Third thermocouple, 15. Fourth thermocouple, 16. Fifth thermocouple, 17. Sixth thermocouple, 18. Seventh thermocouple, 19. Eighth thermocouple, 20. First heating rod, 21. Second heating rod.

Detailed ways

As shown in Figure 1, the server liquid cooling performance test bench that can apply various cooling media mainly includes a liquid storage tank 1, a filter 2, a liquid pump 3, a safety valve 4, a flow control valve 5, an electronic flow meter 6, a starter Stop valve 7, heat exchanger 8, simulation server 9, constant temperature water bath 10, wireless data acquisition instrument 11, first thermocouple 12, second thermocouple 13, third thermocouple 14, fourth thermocouple 15, fifth thermocouple Couple 16 , sixth thermocouple 17 , seventh thermocouple 18 , eighth thermocouple 19 , first heating rod 20 , second heating rod 21 , power source 22 .

When the heat exchange experiment is carried out with water as the cooling medium, water is added to the constant temperature water bath 10, the temperature of the constant temperature water bath 10 is set, the water satisfying the cooling temperature enters the liquid storage tank 1, and the water in the liquid storage tank 1 passes through the filter 2 Filter impurities, flow into the heat exchanger 8 through the liquid pump 3, the flow regulating valve 5, the electronic flow meter 6, and the start-stop valve 7, and after the heat exchange with the surface of the simulation server 9, the cooling water returns to the constant temperature water bath 10 to complete the entire cycle , the flow control valve 5 can be used to adjust the water flow in the middle, the first thermocouple 12 measures the inlet water temperature of the heat exchanger, the second thermocouple 13 measures the outlet water temperature of the heat exchanger, the third thermocouple 14, the fourth thermocouple 15 , the fifth thermocouple 16 , the sixth thermocouple 17 , the seventh thermocouple 18 , and the eighth thermocouple 19 measure the temperature distribution on the surface of the analog server 9 , and the data is summarized to the wireless data acquisition instrument 11 for output. An external power supply 22 of a heating rod 21 can simulate the heat generation of different data cabinets for the simulation server 9 .

When the heat exchange experiment is carried out with refrigerant as the cooling medium, the refrigerant is encapsulated and then added to a constant temperature water bath 10, the temperature of the constant temperature water bath 10 is set, and the refrigerant satisfying the cooling temperature enters the liquid storage tank 1, and the refrigerant in the liquid storage tank 1 The impurities are filtered through the filter 2, the water in the liquid storage tank 1 is filtered through the filter 2, and flows into the heat exchanger 8 through the liquid pump 3, the flow regulating valve 5, the electronic flow meter 6, and the start-stop valve 7, and passes through the simulation server. The heat exchange on the surface of 9, the refrigerant is returned to the constant temperature water bath 10 to complete the whole cycle, the flow of the refrigerant can be adjusted by the flow control valve 5 in the middle, the first thermocouple 12 measures the inlet refrigerant temperature of the heat exchanger, and the second thermocouple 13 Measure the outlet refrigerant temperature of the heat exchanger, the third thermocouple 14, the fourth thermocouple 15, the fifth thermocouple 16, the sixth thermocouple 17, the seventh thermocouple 18, the eighth thermocouple 19 measure the surface of the simulated server 9 The temperature distribution of the first heating rod 20 and the external power supply 22 of the first heating rod 21 can simulate the calorific value of different data cabinets for the simulation server 9 .

The parameters that can be changed in this test bench are the type of cooling medium, the flow rate of the cooling medium, the flow rate of the cooling medium, the temperature of the cooling medium, and the structural design of the heat exchanger.

This test bench can simulate the real-scale heating of the cabinet server. By changing different cooling media and different heat exchanger forms in the test, it provides a safe and efficient platform for seeking more efficient server cooling methods.

Claims (4)

1. The server liquid cooling performance test bench capable of being used for various cooling media is characterized by consisting of a liquid storage tank (1), a filter (2), a liquid pump (3), a safety valve (4), a flow regulating valve (5), an electronic flowmeter (6), a start-stop valve (7), a heat exchanger (8), a simulation server (9), a constant-temperature water bath (10), a wireless data acquisition instrument (11), a first thermocouple (12), a second thermocouple (13), a third thermocouple (14), a fourth thermocouple (15), a fifth thermocouple (16), a sixth thermocouple (17), a seventh thermocouple (18), an eighth thermocouple (19), a first heating rod (20), a second heating rod (21) and a power supply (22);

an outlet of the liquid storage tank (1) is connected with a liquid pump (3) through a filter (2), a first outlet of the liquid pump (3) is connected with an inlet of a heat exchanger (8) through a flow regulating valve (5), an electronic flowmeter (6) and a start-stop valve (7), the heat exchanger (8) is tightly attached to the surface of a simulation server (9), and an outlet of the heat exchanger (8) is connected with an inlet of a constant-temperature water bath (10); a second outlet of the liquid pump (3) is connected with the liquid storage tank (1) through a safety valve (4), a first thermocouple (12) is installed on a water pipe between the start-stop valve (7) and the heat exchanger (8), and a second thermocouple (13) is installed on an outlet of the heat exchanger (8) and a water pipe of the constant-temperature water bath (10); the first heating rod (20) and the second heating rod (21) are equidistantly arranged in the simulation server (9), the front surface of the simulation server (9) is equidistantly provided with a third thermocouple (14), a fourth thermocouple (15), a fifth thermocouple (16), the rear surface is equidistantly provided with a sixth thermocouple (17), a seventh thermocouple (18) and an eighth thermocouple (19), the wireless data acquisition instrument (11) is connected with the first thermocouple (12) and the second thermocouple (13), the third thermocouple (14), the fourth thermocouple (15), the fifth thermocouple (16), the sixth thermocouple (17), the seventh thermocouple (18) and the eighth thermocouple (19) are connected simultaneously, a wireless data acquisition instrument (11) is used for acquiring temperature data, the first heating rod (20) and the second heating rod (21) are installed in the simulation server (9) to provide heating power for the simulation server, and the simulation server is connected with a power supply (22) through copper wires.

2. The test bed for testing the liquid cooling performance of the server capable of using a plurality of cooling mediums according to claim 1, wherein the cooling mediums can be divided into refrigerant mediums and non-refrigerant mediums, and the refrigerant mediums are selected from R11, R22, R134a, FC-72 and FC-87; the non-refrigerant medium is selected from water, salt solution, and alcohol solution.

3. The server liquid cooling performance test bench capable of applying multiple cooling media according to claim 1, wherein the server (9) is simulated by a first heating rod (20) and a second heating rod (21) which are equidistantly arranged, and the heating values of the first heating rod (20) and the second heating rod (21) are equal to the real server heating value.

4. The test bed for testing the liquid cooling performance of the server, which can be used for various cooling media, according to claim 1, is characterized in that two layers of thermocouples are arranged on the front surface and the rear surface of the simulation server (9) in parallel and at equal intervals, and a third thermocouple (14), a fourth thermocouple (15), a fifth thermocouple (16) are sequentially arranged in the front row from left to right, and a sixth thermocouple (17), a seventh thermocouple (18) and an eighth thermocouple (19) are sequentially arranged in the rear row from left to right.

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