CN210168389U - Liquid cooling system of data center - Google Patents
Liquid cooling system of data center Download PDFInfo
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- CN210168389U CN210168389U CN201920488670.0U CN201920488670U CN210168389U CN 210168389 U CN210168389 U CN 210168389U CN 201920488670 U CN201920488670 U CN 201920488670U CN 210168389 U CN210168389 U CN 210168389U
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Abstract
The utility model discloses a data center liquid cooling system relates to data center heat abstractor technical field. The solar water heater comprises a box body, a server, a cold plate, a cooling device, a liquid storage tank and a refrigerant pump, wherein a single-phase refrigerant is arranged in the box body, the server is immersed in the single-phase refrigerant, the server is connected with the box body, the cold plate is arranged in the box body and connected with the box body, and the cold plate is sequentially connected with the cooling device, the liquid storage tank and the refrigerant pump to form a circulation loop. The utility model discloses realize indirect contact liquid cooling and single-phase direct submergence formula liquid cooling and natural cooling's combination, make single-phase refrigerant need not to circulate under the drive of pump and flow, but rely on the change of temperature and density to circulate, and the refrigerant is though circulated under the drive of refrigerant pump, but the refrigerant is little than the viscosity of single-phase refrigerant, easily flows, can not increase the loss of refrigerant pump, so reduce the loss of the pump that single-phase refrigerant caused, reduce data center's PUE, improve data center's greenization degree.
Description
Technical Field
The utility model relates to a data center heat abstractor technical field, concretely relates to data center liquid cooling system.
Background
The data center is a large-power-consumption household, the electronic information equipment and the refrigerating unit which run continuously all the year round can consume a large amount of electric energy, and the effective heat dissipation mode is adopted for the data center to reduce the power consumption of the refrigerating unit, so that the energy conservation of the whole data center is facilitated.
The heat dissipation of the data center has two modes of natural cooling and liquid cooling. The liquid cooling includes indirect contact liquid cooling and direct immersion liquid cooling. Direct immersion liquid cooling is to immerse the server completely in a box filled with a refrigerant, which directly takes away heat generated by components such as chips, memories and the like of the server. The direct immersion liquid cooling is divided into single-phase direct immersion liquid cooling and two-phase direct immersion liquid cooling according to the difference of states of the refrigerant when the refrigerant takes away heat. The single-phase direct immersion type liquid cooling means that the single-phase refrigerant does not change phase in the process of absorbing heat of a server, the single-phase refrigerant continuously circulates and flows under the driving of a pump, the single-phase refrigerant absorbs heat in a box body and rises the temperature, then flows out along a pipeline, enters a heat exchanger, and flows back to the box body again after heat exchange to complete one circulation.
The single-phase refrigerant used by the single-phase direct immersion type liquid cooling has high viscosity coefficient and poor fluidity, increases the loss of a pump, and reduces the greening degree of a data center.
Disclosure of Invention
The utility model discloses the aforesaid that exists to prior art is not enough, provides a data center liquid cooling system, the utility model discloses can alleviate the loss of pump, improve data center's greenization degree.
In order to realize the purpose, the utility model discloses a technical scheme is:
the utility model provides a data center liquid cooling system, includes box, server, cold drawing, cooling device, liquid reserve tank, refrigerant pump, the single-phase refrigerant is equipped with in the box, and the server submergence is in single-phase refrigerant, and the server is connected with the box, and the cold drawing is located in the box, and the cold drawing is connected with cooling device, liquid reserve tank, refrigerant pump in proper order and is formed circulation circuit.
Furthermore, a box cover is arranged above the box body, the box cover is of a shell structure with an open lower end face, the box cover is connected with the box body, and the box cover is provided with vent holes.
Further, the single-phase refrigerant adopts high-boiling-point fluorinated liquid.
Furthermore, the lateral wall of box is equipped with the connecting plate, and the connecting plate is connected with the lateral wall of box, and the connecting plate passes through the fastener and is connected with the server.
Further, the cold plate includes first cold plate and second cold plate, and first cold plate level is located between the bottom plate of server and box, and first cold plate is connected with the bottom plate of box, and the second cold plate is vertical to be located between the lateral wall of server and box, and the second cold plate is connected with the lateral wall of box.
Furthermore, the water outlet end of the second cold plate is arranged above the water inlet end of the second cold plate.
Further, the server is equipped with a plurality ofly, and the cold board still includes the cold board of third, and the cold board of third is located between server and the server, and the cold board of third is connected with the lateral wall of box, and the play water end of the cold board of third is located the top of the end of intaking of the cold board of third.
Furthermore, the cooling device, the liquid storage tank and the refrigerant pump are all arranged outside the tank body.
Further, the cooling device adopts an evaporative condenser or a cooling tower.
Further, deionized water is used as the refrigerant.
The utility model discloses beneficial effect who has:
1. the utility model discloses a set up box, server, cold drawing, cooling device, liquid reserve tank, refrigerant pump, realized indirect contact liquid cooling and single-phase direct submergence formula liquid cooling and natural cooling's combination, the heat that can make the server distribute is absorbed by the single-phase refrigerant in the box, and single-phase refrigerant heaies up after absorbing the heat, density reduces, makes to have the density difference between the single-phase refrigerant to make single-phase refrigerant take place to flow: the cold plate in the box body exchanges heat with the single-phase refrigerant which is heated, the temperature of the single-phase refrigerant is reduced, the single-phase refrigerant continuously absorbs the heat of the server, the refrigerant in the cold plate which absorbs the heat of the single-phase refrigerant flows into the cooling device for cooling, the cooled refrigerant sequentially passes through the liquid storage box and the refrigerant pump to reenter the cold plate and continuously cools the single-phase refrigerant, and the waterless single-phase direct immersion type liquid cooling of the server is realized, so that the single-phase refrigerant does not need to circulate under the driving of the pump but circulates by the change of temperature and density, although the refrigerant circulates under the driving of the refrigerant pump, the viscosity of the refrigerant is lower than that of the single-phase refrigerant, the refrigerant is easy to flow, and the loss of the refrigerant pump can not be increased, therefore, the utility model can reduce the loss of the pump caused by the single, the greening degree of the data center is improved.
2. By arranging the box cover, the single-phase refrigerant can be prevented from being exposed in the atmosphere, the single-phase refrigerant in the box body is prevented from being polluted by the outside, and the service life of the single-phase refrigerant is prolonged; the air vent is arranged, so that the air pressure in the box body can be kept stable after the box cover is covered on the box body.
3. By adopting the high-boiling-point fluorinated liquid, the single-phase refrigerant can be prevented from phase change when absorbing heat emitted by the server, so that the phase change volatilization of the single-phase refrigerant is avoided, the consumption of the single-phase refrigerant is saved, the resource is saved, and the cost is reduced.
4. The connecting plate is arranged on the side wall of the box body and connected with the server through the fastener, so that the server can be conveniently dismounted and mounted in the box body, and the server can be conveniently maintained; and the single-phase refrigerant can surround the server in an all-around manner, so that the heat exchange effect of the single-phase refrigerant and the server is improved.
5. Through setting up first cold board and the cold board of second, can make first cold board and the cold board of second surround the server, the heat in the single-phase refrigerant of taking away of wider to improve the heat transfer effect of single-phase refrigerant and first cold board, the cold board of second.
6. The water outlet end of the second cold plate is arranged above the water inlet end of the second cold plate, the refrigerant in the second cold plate can flow upwards from bottom to top, the cooling effect of the second cold plate on the single-phase refrigerant is improved, the density of the single-phase refrigerant is reduced after the single-phase refrigerant absorbs heat, the single-phase refrigerant flows upwards after the density of the refrigerant is reduced, the refrigerant in the second cold plate also flows upwards from bottom to top, the refrigerant and the single-phase refrigerant after temperature rise flow in the same direction, the cooling of the single-phase refrigerant after temperature rise is accelerated, the cooling effect of the single-phase refrigerant is improved, and the heat dissipation effect and the heat dissipation efficiency of a data center are improved.
7. Through set up a plurality of servers in the box to set up the third cold plate between server and the server, can further improve the radiating effect of server, because if the server sets up a plurality ofly and do not set up the third cold plate, produce local hotspot easily between server and the server then, not only can reduce the circulation flow effect of the single-phase refrigerant between server and server, can reduce the radiating effect to the server moreover. The water outlet end of the third cold plate is arranged above the water inlet end of the third cold plate, the refrigerant in the third cold plate can flow upwards from bottom to top, the cooling effect of the third cold plate on the single-phase refrigerant is improved, the density of the single-phase refrigerant is reduced after the single-phase refrigerant absorbs heat, the single-phase refrigerant flows upwards after the density is reduced, the refrigerant in the third cold plate also flows upwards from bottom to top, the refrigerant and the single-phase refrigerant after temperature rise flow in the same direction, the cooling of the single-phase refrigerant after temperature rise is accelerated, the cooling effect of the single-phase refrigerant is improved, and the heat dissipation effect and the heat dissipation efficiency of a data center are improved.
8. Outside all locating the box through with cooling device and liquid reserve tank and refrigerant pump, can conveniently maintain cooling device or liquid reserve tank or refrigerant pump on the one hand, on the other hand has also improved the security of box, because if all locate the box with cooling device and liquid reserve tank and refrigerant pump, so can strengthen in the junction of cooling device and liquid reserve tank and refrigerant pump, the risk of refrigerant leakage in the box, single-phase refrigerant can be polluted in the refrigerant leakage, thereby reduce the cooling effect of single-phase refrigerant to the server.
9. By adopting the evaporative condenser or the cooling tower, the refrigerant flowing out of the cold plate after being heated can be cooled, so that the cooled refrigerant can return to the cold plate again to continue cooling the single-phase refrigerant, and the single-phase refrigerant is promoted to flow circularly; and the refrigerant enters the evaporative condenser or the cooling tower after flowing out of the cold plate, and exchanges heat with the refrigerant by utilizing a natural cold source, so that the operation of a compressor is realized, the energy is saved, the refrigeration of the data center by utilizing the natural cold source is really realized, the defect that the compressor is used for refrigeration in the natural cooling process is overcome, the PUE value of the data center is improved, the greening degree of the data center is improved, and the heat dissipation use of a server with high heat density is supported.
10. Through adopting deionized water, can prolong the life of cold drawing, cooling device, liquid reserve tank, refrigerant pump, reduce the manpower and materials that the maintenance replaced cold drawing, cooling device, liquid reserve tank, refrigerant pump cost, reduce cost. Because if tap water is adopted, the tap water contains chloride ions, the cold plate, the cooling device, the liquid storage tank and the refrigerant pump are easy to corrode and even leak, the use risk is increased, and the maintenance cost is also increased.
Drawings
FIG. 1 is a schematic diagram of a liquid cooling system of a data center;
FIG. 2 is a schematic diagram of an internal structure of a liquid cooling system of a data center;
fig. 3 is a cross-sectional view at fig. 2A-a.
Description of reference numerals: 1-box body, 2-single-phase refrigerant, 3-server, 4-first cold plate, 401-first liquid inlet pipe, 402-second liquid outlet pipe, 5-second cold plate, 501-second liquid inlet pipe, 502-second liquid outlet pipe, 6-third cold plate, 601-third liquid inlet pipe, 602-third liquid outlet pipe, 7-box cover, 701-vent hole, 8-connecting plate, 9-fastener, 10-cooling device, 11-liquid storage box and 12-refrigerant pump.
It is noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Detailed Description
For a better understanding of the present invention, reference is made to the following description taken in conjunction with the accompanying drawings.
Example (b):
a liquid cooling system of a data center comprises a box body 1, a server 3, a cold plate, a cooling device 10, a liquid storage tank 11 and a refrigerant pump 12.
A box cover 7 is arranged above the box body 1, the box cover 7 is of a shell structure with a lower end face being open, the box cover 7 is hinged with the box body 1, and the box cover 7 is provided with a vent hole 701.
The single-phase refrigerant 2 is contained in the tank 1, and in this embodiment, the single-phase refrigerant 2 is a high-boiling-point fluorinated liquid having a boiling point higher than 100 ℃.
The plurality of servers 3 are immersed in the single-phase refrigerant 2, the side wall of the box body 1 is provided with a connecting plate 8, the connecting plate 8 is welded and fixed with the box body 1, the connecting plate 8 is fixedly connected with the servers 3 through fasteners 9, and in the embodiment, the fasteners 9 are bolts.
The cold drawing is the inside shell structure who is equipped with flow tube or flow groove, the cold drawing is located in box 1, the cold drawing includes first cold drawing 4, second cold drawing 5, third cold drawing 6, first cold drawing 4 level is located between the bottom plate of server 3 and box 1, first cold drawing 4 passes through the bottom plate fixed connection of bolt and box 1, second cold drawing 5 is vertical to be located between the lateral wall of server 3 and box 1, third cold drawing 6 is located between server 3 and the server 3, according to the heat dissipation demand, third cold drawing 6 can set up a plurality ofly, second cold drawing 5 and third cold drawing 6 are all through the lateral wall fixed connection of bolt and box 1. In the present embodiment, the cooling device 10 employs an evaporative condenser, the cooling device 10 is connected to the liquid storage tank 11 through a pipe, the liquid storage tank 11 is connected to the refrigerant pump 12 through a pipe, and the water outlet end of the refrigerant pump 12 is connected to the first liquid inlet pipe 401 of the first cold plate 4, the second liquid inlet pipe 501 of the second cold plate 5, and the third liquid inlet pipe 601 of the third cold plate 6, so that the cold plates, the cooling device 10, the liquid storage tank 11, and the refrigerant pump 12 are communicated to form a circulation loop.
Further, the cooling device 10, the reservoir tank 11, and the refrigerant pump 12 are provided outside the case 1.
Specifically, in the present embodiment, deionized water is used as the refrigerant.
When in use:
as the server 3 operates, the chip and the memory in the server 3 are used as main heat generating sources to generate a large amount of heat, because the server 3 is immersed in the single-phase refrigerant 2, and the single-phase refrigerant 2 adopts the high-boiling-point fluorinated liquid, the boiling point of the high-boiling-point fluorinated liquid is higher than the normal working temperature of 50-55 ℃ of the server 3, so that the high-boiling-point fluorinated liquid does not undergo phase change, the single-phase refrigerant 2 absorbs the heat emitted by the server 3, the temperature of the single-phase refrigerant 2 absorbing the heat of the server 3 is increased, and the density of the single-phase refrigerant 2 absorbing the heat of the server 3 is reduced, so that a temperature difference and a density difference exist between the single-phase refrigerant 2 absorbing the heat of the server 3 and the single-phase refrigerant 2 not absorbing the heat of the server 3, the single-phase refrigerant 2 in the box 1 flows, the single-phase refrigerant 2 that does not absorb heat from the servers 3 also flows toward the single-phase refrigerant 2 that absorbs heat from the servers 3, so that spontaneous convection is formed between the single-phase refrigerant 2 that absorbs heat from the servers 3 and the single-phase refrigerant 2 that does not absorb heat from the servers 3.
Also, since the cold plates continuously lower the temperature of the single-phase refrigerant 2, a temperature difference and a density difference are maintained between the single-phase refrigerant 2 that has absorbed heat from the servers 3 and the single-phase refrigerant 2 that has not absorbed heat from the servers 3, and thus a spontaneous convection circulation is formed between the single-phase refrigerant 2 that has absorbed heat from the servers 3 and the single-phase refrigerant 2 that has not absorbed heat from the servers 3. In the process of the circulation flow of the single-phase refrigerant 2, the single-phase refrigerant 2 transfers the heat absorbed from the server 3 to the refrigerant in the cold plate, after the refrigerant in the cold plate absorbs the heat, the cold plate flows out to enter the cooling device 10 for cooling and condensation, then the refrigerant after cooling enters the liquid storage tank 11 for temporary storage, then the refrigerant after cooling is sent into the cold plate through the refrigerant pump 12, the temperature of the single-phase refrigerant 2 is continuously reduced, and therefore the whole heat dissipation cycle is completed.
When the temperature outside the box body 1 is low or the chip use power of the server 3 is low, the amount of the refrigerant entering the cold plate can be reduced, and the redundant refrigerant enters the liquid storage tank 11 for temporary storage, so that the power consumption of the refrigerant pump 12 is reduced; the box body 1 is externally cooled by only a fan in the evaporative condenser after absorbing heat, and a spray device in the evaporative condenser is not adopted.
When the temperature outside the box body 1 is higher or the chip use power of the server 3 is higher, the amount of the refrigerant entering the cold plate can be increased, and the heat exchange efficiency is improved; the box body 1 is externally provided with a fan in the evaporative condenser and a spraying device in the evaporative condenser to cool the refrigerant absorbing heat.
When a part of regional servers 3 in the box body 1 run with high power consumption and the other part of regional servers 3 run with low power consumption or do not run, the flow of the refrigerant in the cold plate in the low-power consumption or zero-power consumption region is closed or reduced, and the energy conservation, the PUE reduction and the data center greening degree are realized while the stable temperature of the box body 1 is maintained.
The utility model discloses combine together single-phase direct submergence formula liquid cooling and indirect contact liquid cooling and natural cooling, reduce data center's energy consumption by a wide margin, have the effect that natural cold source is energy-conserving, PUE reduces concurrently, improve heat transfer capacity, support high heat density server 3's heat dissipation, optimize the natural cooling technique, realize "going the compressor" operation completely.
Claims (10)
1. The utility model provides a data center liquid cooling system, its characterized in that includes box, server, cold drawing, cooling device, liquid reserve tank, refrigerant pump, single-phase refrigerant is equipped with in the box, the server submergence in single-phase refrigerant, and the server is connected with the box, and the cold drawing is located in the box, and the cold drawing is connected with cooling device, liquid reserve tank, refrigerant pump in proper order and is formed circulation circuit.
2. The liquid cooling system of claim 1, wherein a cover is disposed above the housing, the cover is a housing structure with an open lower end, the cover is connected to the housing, and the cover is provided with a vent.
3. The liquid cooling system of claim 1, wherein the single-phase refrigerant is a high boiling point fluorinated liquid.
4. The liquid cooling system of claim 1, wherein the side walls of the housing have connection plates that are connected to the side walls of the housing, the connection plates being connected to the servers by fasteners.
5. The liquid cooling system of claim 1, wherein the cold plates comprise a first cold plate and a second cold plate, the first cold plate is horizontally disposed between the server and the bottom plate of the box body, the first cold plate is connected to the bottom plate of the box body, the second cold plate is vertically disposed between the server and the side wall of the box body, and the second cold plate is connected to the side wall of the box body.
6. The liquid cooling system of claim 5, wherein the water outlet end of the second cold plate is disposed above the water inlet end of the second cold plate.
7. The liquid cooling system of claim 6, wherein the plurality of servers are provided, the plurality of cold plates further comprise a third cold plate, the third cold plate is arranged between the servers and is connected with the side wall of the box body, and the water outlet end of the third cold plate is arranged above the water inlet end of the third cold plate.
8. The liquid cooling system of claim 1, wherein the cooling device and the reservoir and the refrigerant pump are external to the housing.
9. The liquid cooling system of claim 1, wherein the cooling device is an evaporative condenser or a cooling tower.
10. The data center liquid cooling system of claim 1, wherein the refrigerant is deionized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920488670.0U CN210168389U (en) | 2019-04-11 | 2019-04-11 | Liquid cooling system of data center |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920488670.0U CN210168389U (en) | 2019-04-11 | 2019-04-11 | Liquid cooling system of data center |
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| CN210168389U true CN210168389U (en) | 2020-03-20 |
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| CN201920488670.0U Active CN210168389U (en) | 2019-04-11 | 2019-04-11 | Liquid cooling system of data center |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109952003A (en) * | 2019-04-11 | 2019-06-28 | 苏州浪潮智能科技有限公司 | A kind of data center's liquid cooling system |
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2019
- 2019-04-11 CN CN201920488670.0U patent/CN210168389U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109952003A (en) * | 2019-04-11 | 2019-06-28 | 苏州浪潮智能科技有限公司 | A kind of data center's liquid cooling system |
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