Liquid cooling control device for server

Abstract

The utility model discloses a server liquid cooling control device, which comprises an external cooling unit, a liquid preparation unit, a liquid separation unit, a server unit and air cooling equipment, the liquid preparation unit is positioned below the server unit and is connected with the external cooling unit, the external cooling unit transmits cooling liquid to the liquid preparation unit, the liquid separation unit is connected with the liquid preparation unit, and the server unit is connected with the air cooling equipment. The liquid distribution unit receives cooling liquid of the liquid preparation unit and then distributes the cooling liquid to the server units needing to be cooled, the air cooling equipment is located above the server units, the liquid preparation unit is provided with an air radiator, and hot air of the air cooling equipment is circularly cooled through a fan of the air radiator. According to the utility model, not only can the liquid cooling server be cooled, but also the air cooling equipment of the air cooling server can be cooled, the requirement of simultaneous heat dissipation of the liquid cooling server and the air cooling server in the server cabinet can be met, and the server cabinet is suitable for heat dissipation of various working condition servers such as a cold plate server, an immersed server and an air cooling server.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling of data centers, and in particular to a liquid cooling control device for a server. Background Art

[0002] A data center is a physical facility that provides computing power to run programs, process information, and store resources that connect people to perform tasks and support organizational operations. Since data centers often need to perform long and intensive calculations, the machines generate a lot of heat and need to be equipped with continuous and effective cooling equipment to assist in heat dissipation.

[0003] At present, the heat dissipation methods of data centers are mainly divided into two forms: liquid cooling and air cooling. Compared with air cooling, liquid cooling has the following advantages: 1. Better heat dissipation performance, capable of cooling servers with higher power density; 2. Significantly reduce the power consumption of data centers, with obvious energy-saving effects; 3. The computer room can achieve low noise; 4. Small footprint; 5. Flexible system layout and transformation; 6. Low requirements for computer room environment; 7. Improved server reliability and extended service life; 8. Low equipment maintenance expenses. Because of these advantages, liquid cooling technology is gradually being applied on a large scale in data centers. The liquid cooling heat dissipation methods of data centers are mainly divided into two forms: cold plate liquid cooling and immersion liquid cooling. The heat dissipation methods are relatively simple and cannot be compatible with these two liquid cooling heat dissipation methods and air cooling heat dissipation methods at the same time. Liquid cooling heat dissipation mainly cools immersion liquid cooling servers and cold plate liquid cooling servers, while for air cooling servers, the existing liquid cooling methods cannot dissipate heat for the air cooling equipment in the air cooling servers. Utility Model Content

[0004] In view of this, the utility model provides a server liquid cooling control device, which solves the technical problem that the existing liquid cooling system cannot be compatible with liquid cooling and air cooling at the same time.

[0005] The technical means adopted by the utility model are as follows: a server liquid cooling control device, comprising:

[0006] External cooling unit, which is used to produce low-temperature coolant;

[0007] A liquid distribution unit, the liquid distribution unit is located below the server unit, the liquid distribution unit is connected to the external cooling unit, and the external cooling unit transmits the cooling liquid to the liquid distribution unit;

[0008] A liquid dispensing unit, the liquid dispensing unit is connected to the liquid dispensing unit, and the liquid dispensing unit receives the cooling liquid from the liquid dispensing unit and distributes it to a number of server units that need to be cooled;

[0009] Air cooling equipment, the air cooling equipment is located above the server unit; wherein:

[0010] The liquid dispensing unit is provided with an air radiator, and the hot air of the air-cooling device is circulated and cooled by the fan of the air radiator.

[0011] Preferably, a first expansion water tank, a first circulating water pump, a first temperature sensor, a first pressure sensor and a first switch valve are arranged on the liquid supply pipeline connected between the external cooling unit and the liquid distribution unit. The first expansion water tank is provided with a first drain port, a first manual exhaust valve and a first liquid level gauge. The liquid distribution unit is also provided with a heat exchanger. The liquid supply pipeline is divided into two routes, one route is connected with the heat exchanger, and a first electric ball valve is arranged on the liquid supply pipeline at the front end of the heat exchanger, and the other route is connected with the air radiator, and a second electric ball valve and a first automatic exhaust valve are arranged on the liquid supply pipeline at the front end of the air radiator. A second temperature sensor is arranged at the air outlet of the air radiator.

[0012] Preferably, a second switch valve, a second pressure sensor, a third temperature sensor and a first filter are arranged on the return liquid pipeline connected between the liquid distribution unit and the external cooling unit. The return liquid pipeline is two-way combined into one, one way returns from the air radiator to the external cooling unit, and the other way returns from the heat exchanger to the external cooling unit. A second manual exhaust valve is arranged on the return liquid pipeline returning from the air radiator.

[0013] Preferably, a flow sensor, a second filter, a fourth temperature sensor, a third pressure sensor and a safety valve are arranged on the liquid supply pipeline connecting the heat exchanger and the liquid separation unit.

[0014] Preferably, a second circulating water pump, a fourth pressure sensor, a fifth temperature sensor and a second expansion water tank are arranged on the liquid return pipeline connecting the heat exchanger and the liquid separation unit, and the second expansion water tank is provided with a second drain port, a third manual exhaust valve and a second liquid level gauge.

[0015] Preferably, a second automatic exhaust valve is provided on the front end liquid supply pipeline of the liquid separation unit, and a third switch valve is provided on the liquid return pipeline connecting the liquid separation unit and the heat exchanger.

[0016] The server liquid cooling control device provided by the utility model can be used to cool the liquid-cooled server and the air-cooling equipment of the air-cooled server, thereby meeting the needs of simultaneous heat dissipation of the liquid-cooled server and the air-cooled server in the server cabinet. It is suitable for heat dissipation of servers in various working conditions such as cold plate servers, immersion servers and air-cooled servers. In actual use, there is no need to modify the structure of the air-cooled server, and later maintenance is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a simplified structural diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the working principle of the utility model;

[0019] Figure 3 It is the structural connection circuit diagram of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the liquid dispensing unit in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the cabinet in the utility model. DETAILED DESCRIPTION

[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0023] like Figure 1 As shown, a server liquid cooling control device comprises:

[0024] The external cooling unit 1 is used to produce low-temperature coolant; the external cooling unit 1 (cold source) can specifically be a dry cooler, a cooling tower or a chiller.

[0025] The liquid distribution unit 2 is located below the server unit 3 and is connected to the external cooling unit 1. The external cooling unit 1 transmits the cooling liquid to the liquid distribution unit 2.

[0026] Liquid separation unit 4, liquid separation unit 4 is connected to liquid distribution unit 2, and liquid separation unit 4 receives the cooling liquid from liquid distribution unit 2 and distributes it to several server units 3 that need to be cooled; it is easy to understand that liquid separation unit 4 is divided into multiple pipelines, which are consistent with the specific number of server units 3. The server units 3 connected to liquid separation unit 4 are liquid-cooled servers, which can be cold plate liquid-cooled servers or immersion liquid-cooled servers, or a combination of the two. Of course, server units 3 include air-cooled servers that do not need to be connected to liquid separation unit 4, and the heat dissipation of air-cooled servers is completed by air cooling equipment 5.

[0027] The air cooling device 5 is located above the server unit 3; the air cooling device 5 cools the air-cooled server, thereby generating hot air.

[0028] like Figure 4 As shown, the liquid dispensing unit 2 is provided with an air radiator 201, which includes a radiator core 202, a wind chamber 203, a fan 204 and an air guide cover 205. The fan 204 of the air radiator 201 circulates and cools the hot air of the air-cooling device 5. Figure 5As shown, the liquid dispensing unit 2 is installed in a cabinet 206, that is, the cabinet 206 contains the pipeline of the liquid dispensing unit 2 and the air radiator 21, an air inlet mesh port 207 is set on one side of the cabinet 206, and an air outlet mesh port 208 is set on the other side. Under the action of the fan 204 of the air radiator 201 in the cabinet, the hot air generated by the air-cooling device 5 is sucked into the air inlet mesh port 207, enters the air radiator 201 through the air guide cover 205, and is cooled, and then discharged from the air outlet mesh port 208 and flows to the air-cooling device 5. Such a cycle achieves the purpose of cooling the hot air, and realizes the cooling of the air-cooling device 5. Here, it is easy to understand that, as Figure 2 As shown, the entire server liquid cooling control device is arranged in the server cabinet, so the air flow between the air cooling device 5 and the air radiator 201 can circulate in the server cabinet.

[0029] like Figure 3 As shown, a first expansion water tank 6, a first circulating water pump 7, a first temperature sensor 8, a first pressure sensor 9 and a first switch valve 10 are arranged on the liquid supply pipeline connected between the external cooling unit 1 and the liquid distribution unit 2. The first expansion water tank 6 is provided with a first drain port 11, a first manual exhaust valve 12 and a first liquid level gauge 13. The liquid distribution unit 2 is also provided with a heat exchanger 210. Here, the heat exchanger 210 generally adopts a plate heat exchanger. The liquid supply pipeline is divided into two routes, one of which is connected to the heat exchanger 210. A first electric ball valve 14 is arranged on the liquid supply pipeline at the front end of the heat exchanger 210, and the other route is connected to the air radiator 201. A second electric ball valve 15 and a first automatic exhaust valve 16 are arranged on the liquid supply pipeline at the front end of the air radiator 201. A second temperature sensor 17 is arranged at the air outlet of the air radiator 201.

[0030] like Figure 3 As shown, a second switch valve 18, a second pressure sensor 19, a third temperature sensor 20 and a first filter 21 are provided on the liquid return pipeline connected between the liquid distribution unit 2 and the external cooling unit 1. It is easy to understand that the liquid return pipeline is two-way integration, one way is returned from the air radiator 201 to the external cooling unit 1, and the other way is returned from the heat exchanger 210 to the external cooling unit 1. A second manual exhaust valve 22 is provided on the liquid return pipeline returning from the air radiator 201.

[0031] like Figure 3 As shown, a flow sensor 23 , a second filter 24 , a fourth temperature sensor 25 , a third pressure sensor 26 and a safety valve 27 are arranged on the liquid supply pipeline connecting the heat exchanger 210 and the liquid separation unit 4 .

[0032] like Figure 3As shown, a second circulating water pump 28, a fourth pressure sensor 29, a fifth temperature sensor 30 and a second expansion water tank 31 are arranged on the return liquid pipeline connecting the heat exchanger 210 and the liquid separation unit 4. The second expansion water tank 31 is provided with a second drain port 32, a third manual exhaust valve 33 and a second liquid level meter 34.

[0033] like Figure 3 As shown, the front end liquid supply pipeline of the liquid separation unit 4 is provided with a second automatic exhaust valve 35, and the return liquid pipeline connecting the liquid separation unit 4 and the heat exchanger 210 is provided with a third switch valve 36. The second expansion water tank 31 is filled with coolant. When the coolant is consumed and needs to be replenished, the third manual exhaust valve 33 is opened, the third switch valve 36 is closed, and the external liquid replenishment hose is connected to the second drain port 32 to start replenishing. When liquid emerges from the third manual exhaust valve 33, it means that the coolant is basically full. After it is full, the third switch valve 36 is opened, and the first circulating water pump 7 and the second circulating water pump 28 are started and run for about five minutes to observe whether the coolant in the second expansion water tank 31 needs to be replenished. If it needs to be replenished, repeat the above steps.

[0034] like Figure 2 and Figure 3 As shown, the working principle of the utility model is specifically as follows: the cooling liquid generated by the external cooling unit 1 is divided into two paths through the liquid supply pipeline and enters the heat exchanger 210 and the air radiator 201 in the liquid distribution unit 2. One path of the heat exchanger 210 enters the liquid distribution unit 4 through the liquid supply pipeline, and the liquid distribution unit 4 enters the liquid-cooled server to be cooled through the liquid supply pipeline. After cooling, it flows back to the heat exchanger 210 through the return liquid pipeline for heat exchange, and finally the cooling liquid flows back from the heat exchanger 210 to the external cooling unit. This path cools the liquid-cooled server; the other path of the cooling liquid enters the air radiator 201, and the air radiator 201 circulates and cools the hot air generated by the air-cooling device 5 under the action of the fan 204. Here, the air-cooling device 5 cools the air-cooled server, so hot air will be generated, such as Figure 2 As shown, the circulation of hot air is in the whole server cabinet, that is, one end of the air radiator 201 is for air inlet and the other end is for air outlet. From the above, it can be known that the server liquid cooling control device of the utility model can cool the liquid-cooled server and the air-cooling device 5 of the air-cooled server, meeting the requirements of simultaneous heat dissipation of the liquid-cooled server and the air-cooled server in the server cabinet, and is suitable for heat dissipation of servers in various working conditions such as cold plate servers, immersion servers and air-cooled servers. In actual use, there is no need to modify the structure of the air-cooled server, which is convenient for later maintenance.

[0035] In actual use, since the number and load of server units will change, the flow rate and flow rate of the coolant also need to be adjusted and controlled accordingly. The control method of the entire liquid cooling control device can be completed under automatic program conditions: specifically as follows:

[0036] 1. If the number of server units 3 increases, it means that more coolant is needed. The speed of the second circulating water pump 28 is adjusted by the difference between the third pressure sensor 26 and the fourth pressure sensor 29 until the third pressure sensor 26 and the fourth pressure sensor 29 reach a preset pressure difference value to ensure that the liquid separation unit 4 has enough circulating coolant.

[0037] 2. If the load of the server unit 3 increases, it means that the server releases more heat and needs to increase the heat dissipation. At this time, the opening of the first electric ball valve 14 can be adjusted, that is, the amount of coolant entering the heat exchanger 210 is increased, and the fifth temperature sensor 30 is adjusted to reach the preset value, so as to ensure that the liquid supply temperature of the liquid separation unit 4 is relatively constant.

[0038] 3. If the load of the air-cooling equipment increases, that is, the air-cooling equipment dissipates more heat and needs to increase the heat dissipation, the opening of the second electric ball valve 15 can be adjusted, that is, the amount of coolant entering the air radiator 201 is increased, and the second temperature sensor 17 is adjusted to reach a preset value, so as to ensure that the air supply temperature of the air radiator 201 is relatively constant.

[0039] 4. If the opening of the first electric ball valve 14 / the second electric ball valve 17 is adjusted to the maximum, and the corresponding fifth temperature sensor 30 / the second temperature sensor 17 cannot reach the preset value, it means that the coolant flow rate provided by the entire liquid distribution unit 2 is not large enough. At this time, adjust the speed of the first circulating water pump 7 so that the fifth temperature sensor 30 / the second temperature sensor 17 can reach the preset value, so as to ensure the relative constancy of the liquid supply temperature of the liquid separation unit 4 / the relative constancy of the air supply temperature of the air radiator 201.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A server liquid cooling control device, characterized in that: include: External cooling unit, which is used to produce low-temperature coolant; A liquid distribution unit, the liquid distribution unit is located below the server unit, the liquid distribution unit is connected to the external cooling unit, and the external cooling unit transmits the cooling liquid to the liquid distribution unit; A liquid dispensing unit, the liquid dispensing unit is connected to the liquid dispensing unit, and the liquid dispensing unit receives the cooling liquid from the liquid dispensing unit and distributes it to a number of server units that need to be cooled; Air cooling equipment, the air cooling equipment is located above the server unit; wherein: The liquid dispensing unit is provided with an air radiator, and the hot air of the air-cooling device is circulated and cooled by the fan of the air radiator.

2. The server liquid cooling control device according to claim 1, characterized in that: A first expansion water tank, a first circulating water pump, a first temperature sensor, a first pressure sensor and a first switch valve are arranged on the liquid supply pipeline connected between the external cooling unit and the liquid distribution unit. The first expansion water tank is provided with a first drain port, a first manual exhaust valve and a first liquid level gauge. The liquid distribution unit is also provided with a heat exchanger. The liquid supply pipeline is divided into two routes, one route is connected with the heat exchanger, a first electric ball valve is arranged on the liquid supply pipeline at the front end of the heat exchanger, and the other route is connected with the air radiator, a second electric ball valve and a first automatic exhaust valve are arranged on the liquid supply pipeline at the front end of the air radiator, and a second temperature sensor is arranged at the air outlet of the air radiator.

3. The server liquid cooling control device according to claim 2, characterized in that: A second switch valve, a second pressure sensor, a third temperature sensor and a first filter are arranged on the return liquid pipeline connected between the liquid distribution unit and the external cooling unit. The return liquid pipeline is two-way combined into one, one way flows back from the air radiator to the external cooling unit, and the other way flows back from the heat exchanger to the external cooling unit. A second manual exhaust valve is arranged on the return liquid pipeline returning from the air radiator.

4. The server liquid cooling control device according to claim 3, characterized in that: A flow sensor, a second filter, a fourth temperature sensor, a third pressure sensor and a safety valve are arranged on the liquid supply pipeline communicating between the heat exchanger and the liquid separation unit.

5. The server liquid cooling control device according to claim 4, characterized in that: A second circulating water pump, a fourth pressure sensor, a fifth temperature sensor and a second expansion water tank are arranged on the liquid return pipeline connecting the heat exchanger and the liquid separation unit. The second expansion water tank is provided with a second drain port, a third manual exhaust valve and a second liquid level gauge.

6. The server liquid cooling control device according to claim 5, characterized in that: A second automatic exhaust valve is arranged on the front end liquid supply pipeline of the liquid separation unit, and a third switch valve is arranged on the liquid return pipeline connected between the liquid separation unit and the heat exchanger.

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