CN110913667A - Cooling system for data center - Google Patents

Cooling system for data center Download PDF

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Publication number
CN110913667A
CN110913667A CN201911256626.8A CN201911256626A CN110913667A CN 110913667 A CN110913667 A CN 110913667A CN 201911256626 A CN201911256626 A CN 201911256626A CN 110913667 A CN110913667 A CN 110913667A
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China
Prior art keywords
water inlet
water outlet
water
branch
cooling
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Granted
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CN201911256626.8A
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CN110913667B (en
Inventor
雒志明
李孝众
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Beijing Baidu Netcom Science and Technology Co Ltd
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Beijing Baidu Netcom Science and Technology Co Ltd
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Priority to CN201911256626.8A priority Critical patent/CN110913667B/en
Publication of CN110913667A publication Critical patent/CN110913667A/en
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20709Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
    • H05K7/20763Liquid cooling without phase change
    • H05K7/2079Liquid cooling without phase change within rooms for removing heat from cabinets
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20709Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
    • H05K7/20718Forced ventilation of a gaseous coolant
    • H05K7/20745Forced ventilation of a gaseous coolant within rooms for removing heat from cabinets, e.g. by air conditioning device

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The application discloses a cooling system for a data center, and relates to the technical field of data center cooling. The specific implementation scheme is as follows: the present application provides a cooling system for a data centre, comprising a refrigeration distribution unit and at least two cooling units, each cooling unit comprising: the water inlet main road, the water outlet main road, the water inlet branch road and the water outlet branch road; the water inlet branch is connected between the cabinet and the water inlet trunk, the water outlet branch is connected between the cabinet and the water outlet trunk, the water inlet trunk and the water outlet trunk are both connected with the cold energy distribution unit, and the cold energy distribution unit is used for conveying cooling water to the cabinet through the water inlet trunk and taking away heat of the cabinet through the water outlet trunk; wherein, all be connected with the valve on water inlet branch road and the play water branch road, the valve is used for controlling the break-make of rack and water inlet trunk road and play water trunk road. The fault domain control range of the cooling system is small, the cooling efficiency is high, the installation process is simple, the performance is good, and the cost is low.

Description

Cooling system for data center
Technical Field
The application relates to the technical field of data center cooling, in particular to a cooling system for a data center.
Background
With the rise and development of artificial intelligence, in order to meet the requirements of data processing and users, the scale of hardware facilities of a data center is continuously enlarged, the power consumed by the data center is more and more increased, and greater challenges are brought to the cooling requirements of the data center.
In recent years, the demand for liquid cooling of data centers is increasing, and fig. 1 is a liquid cooling design scheme of a data center in the prior art. As shown in fig. 1, the liquid cooling of the existing data center is designed according to a traditional cooling water system, the secondary side of a machine room of the data center is designed by a ring network, and a valve is additionally arranged on the ring network to control the range of a fault domain. Wherein, in order to control the fault domain of system at two rack within ranges, all need to set up the valve in per two rack looped netowrk both sides, and in order to prevent that the valve trouble from leading to four rack troubles, only influence two racks when needing to increase the valve in order to guarantee the valve trouble in the outside of valve again.
However, in the prior art, because the data center machine room is designed as a ring network, the number of ring network valves is large, the fault domain control range is large, and the prefabrication construction cannot be performed.
Disclosure of Invention
The application provides a cooling system for data center, cooling system's fault domain control range is less, and cooling efficiency is higher, and the installation procedure is simple, and the performance is better, and the cost is lower.
The application provides a cooling system for data center, data center includes a plurality of cabinets of arranging the setting, and cooling system includes cold volume distribution unit and at least two cooling units, and every cooling unit includes: the water inlet main road, the water outlet main road, the water inlet branch road and the water outlet branch road;
the water inlet branch is connected between the cabinet and the water inlet trunk, the water outlet branch is connected between the cabinet and the water outlet trunk, the water inlet trunk and the water outlet trunk are both connected with the cold energy distribution unit, and the cold energy distribution unit is used for conveying cooling water to the cabinet through the water inlet trunk and taking away heat of the cabinet through the water outlet trunk;
wherein, all be connected with the valve on water inlet branch road and the play water branch road, the valve is used for controlling the break-make of rack and water inlet trunk road and play water trunk road.
The cooling system provided by the embodiment is used for cooling a data center, the data center is provided with a plurality of cabinets, the cooling system comprises a cooling capacity distribution unit and at least two cooling units, each cooling unit consists of a water inlet main road, a water outlet main road, a water inlet branch road and a water outlet branch road, the water inlet main road and the water outlet main road are connected with the cooling capacity distribution unit, the water inlet branch road is connected between the water inlet main road and the cabinets, and the water outlet branch road is connected between the water outlet main road and the cabinets, so that the cooling capacity distribution unit can convey cooling water to the cabinets through the water inlet main road and the water inlet branch road and take away heat of the cabinets through the water outlet branch road and the water outlet main road so as to cool the cabinets; wherein, through connecting the valve on water inlet branch road and play water branch road, the valve can control the rack like this and intake the water main road and go out the connection and the disconnection of water main road to owing to do not set up the valve on the road, therefore the valve trouble back of a certain branch road, can only control a rack of being connected with this branch road with the fault domain, the fault domain is less, and owing to be provided with a plurality of cooling unit, therefore can wholly switch over to another cooling unit and carry out cooling work, can improve cooling system's cooling efficiency like this.
Optionally, the cooling unit comprises a first cooling unit and a second cooling unit;
the first cooling unit comprises a first water inlet main road, a first water outlet main road, a first water inlet branch road connected between the first water inlet main road and the cabinet and a first water outlet branch road connected between the first water outlet main road and the cabinet;
the second cooling unit comprises a second water inlet main road, a second water outlet main road, a second water inlet branch road connected between the second water inlet main road and the cabinet and a second water outlet branch road connected between the second water outlet main road and the cabinet;
wherein, all be provided with the valve on first water branch road, second water branch road and the second water branch road of intaking.
Through setting up these two cooling units of first cooling unit and second cooling unit, after the valve trouble of a certain branch road in one of them cooling unit, can wholly switch to another cooling unit work, can only control a rack that the trouble valve corresponds with the fault domain like this, all have no influence to other racks, can improve cooling system's cooling efficiency.
Optionally, the cabinet is provided with a water inlet and a water outlet; the first water inlet branch and the second water inlet branch are both communicated with the water inlet pipe and are connected with the water inlet hole through the water inlet pipe; the first water outlet branch and the second water outlet branch are communicated with the water outlet pipe and are connected with the water outlet hole through the water outlet pipe.
The cabinet is provided with a water inlet hole and a water outlet hole, the first water inlet branch and the second water inlet branch are used as two branches of the water inlet pipe, and the first water inlet branch and the second water inlet branch are communicated with the water inlet hole through the water inlet pipe; similarly, the first water outlet branch and the second water outlet branch are used as two branches of the water outlet pipe, and the first water outlet branch and the second water outlet branch are communicated with the water outlet hole through the water outlet pipe.
Optionally, the cabinet is provided with two water inlet holes and two water outlet holes; the first water inlet branch and the second water inlet branch are respectively connected with the two water inlet holes, and the first water outlet branch and the second water outlet branch are respectively connected with the two water outlet holes.
Through setting up two inlet openings and two apopores at the rack, first branch road of intaking like this and second branch road of intaking can respectively with two inlet opening lug connection, first branch road of going out water and second branch road of going out water can respectively with two apopore lug connection.
Optionally, the cold energy distribution unit includes a first cold energy distribution device and a second cold energy distribution device, the first water inlet trunk and the first water outlet trunk are connected to the first cold energy distribution device, and the second water inlet trunk and the second water outlet trunk are connected to the second cold energy distribution device.
The cold quantity distribution unit consists of the first cold quantity distribution device and the second cold quantity distribution device, so that the two cold quantity distribution units can respectively control the two cooling units, the control of the cold quantity distribution units on the cooling units is better, and the cooling efficiency of the cooling system can be improved.
Optionally, the water inlet pipe and the water outlet pipe or the first water inlet branch, the first water outlet branch, the second water inlet branch and the second water outlet branch are connected with the cabinet through quick connectors.
The water inlet pipe is convenient to be connected through the quick connectors between the water inlet pipe, the water outlet pipe or the first water inlet branch, the first water outlet branch, the second water inlet branch, the second water outlet branch and the cabinet. And assembling and disassembling the water outlet pipe and each branch with the cabinet.
Optionally, the valve is a ball valve.
Optionally, the data center includes at least one row of cabinets, and each row of cabinets includes at least two cabinets arranged in sequence.
Optionally, the cooling system further includes a machine room air conditioning unit for cooling the cabinet, where the machine room air conditioning unit includes at least one machine room air conditioner, and the machine room air conditioners and the cabinet are arranged at intervals.
By arranging the machine room air conditioning unit which comprises at least one machine room air conditioner, cold air flow blown out by the machine room air conditioner can cool the cabinet in air, so that the cooling efficiency of the cooling system on the data center is further improved; wherein, set up through computer lab air conditioner and rack interval, the computer lab air conditioner can be more effective, quick cooling to the rack like this.
Optionally, a machine room air conditioner is arranged between every two machine cabinets.
Through set up a computer lab air conditioner between per two computer lab cabinets, can make every rack all with the adjacent setting of computer lab air conditioner, like this every rack can both be better by the cooling.
Other effects of the above-described alternative will be described below with reference to specific embodiments.
Drawings
The drawings are included to provide a better understanding of the present solution and are not intended to limit the present application. Wherein:
FIG. 1 is a liquid cooling design of a prior art data center;
FIG. 2 is a schematic diagram of a cooling system for a data center according to an embodiment of the present disclosure;
fig. 3 is a partial structural schematic diagram of fig. 2.
Description of reference numerals:
1-a cabinet;
11-water inlet holes; 12-water outlet;
2-a cooling unit;
2 a-a first cooling unit; 2 b-a second cooling unit;
21-water inlet main line; 22-water outlet main path; 23-water inlet branch; 24-a water outlet branch;
21 a-a first water inlet main; 22 a-a first water outlet main; 23 a-a first water inlet branch; 24 a-a first water outlet branch;
21 b-a second water inlet main line; 22 b-a second water outlet main line; 23 b-a second water inlet branch; 24 b-a second water outlet branch;
3-cold quantity distribution unit;
31-a first cold distribution device; 32-a second cold quantity distribution device;
4-a valve; 5-a quick coupling;
6-machine room air conditioning unit; and 61-machine room air conditioning.
Detailed Description
The following description of the exemplary embodiments of the present application, taken in conjunction with the accompanying drawings, includes various details of the embodiments of the application for the understanding of the same, which are to be considered exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
Data centers are a worldwide collaborative network of devices designed to communicate, accelerate, present, compute and store data information over the internet infrastructure, and in recent years the number of high performance electronic components in data centers (such as high performance processors packaged within servers) has steadily increased with the rise and development of artificial intelligence, thereby increasing the amount of heat generated and dissipated during the regular operation of the servers. If the ambient temperature of a data center in which the servers are allowed to operate increases over time, the reliability of the servers used within the data center may decrease. Therefore, maintaining a proper thermal environment is critical to the proper operation of these servers in a data center, as well as server performance and service life.
Therefore, the embodiment of the present application provides a cooling system for a data center, so as to cool the data center, so that the temperature of a server in the data center and the ambient temperature of the data center are kept within an appropriate range, thereby ensuring that the server normally operates, improving the performance of the server, and prolonging the service life of the server, thereby improving the reliability of the server.
FIG. 2 is a schematic diagram of a cooling system for a data center according to an embodiment of the present disclosure; fig. 3 is a partial structural schematic diagram of fig. 2. As shown in fig. 2 and 3, the embodiment of the present application provides a cooling system for a data center, the data center includes a plurality of racks 1 arranged in an array, the cooling system includes a refrigeration capacity distribution unit 3 and at least two cooling units 2, each cooling unit 2 includes: water inlet trunk 21, water outlet trunk 22, water inlet branch 23 and water outlet branch 24.
As shown in fig. 2, a plurality of cabinets 1 are disposed in the data center, and the cabinets 1 are the aforementioned servers, and are described below with the cabinets 1, which is not described again, and the plurality of cabinets 1 may be disposed in a machine room of the data center according to a certain arrangement manner, for example, the plurality of cabinets 1 may be arranged in an array manner, that is, a plurality of rows of cabinets 1 are disposed in the machine room, and a plurality of cabinets 1 are sequentially arranged in each row.
Specifically, as shown in fig. 2, in this embodiment, the data center may include at least one row of cabinets 1, and each row of cabinets 1 includes at least two cabinets 1 arranged in sequence. The data center can be provided with at least one row of cabinets 1, and this row of cabinets 1 includes two cabinets 1 at least, and the cooling system is used for cooling all cabinets 1 arranged in the computer room.
In practical application, a floor area of a data center is generally large, a plurality of rows of cabinets 1 are generally arranged in the data center, each row of cabinets 1 may include a plurality of cabinets 1 arranged in sequence, and the cooling system in this embodiment may be specifically designed according to an arrangement form of the cabinets 1 in the data center, which is not limited in this embodiment.
It should be noted that, for the case that the load of the current cabinet 1 is increasing, in this embodiment, the liquid cooling system is adopted to cool the cabinet 1, that is, the cooling water is sent into the cabinet 1, the cooling water exchanges heat with the cabinet 1 in a heat conduction manner, after the cabinet 1 is cooled, the temperature of the cooling water rises and is then discharged out of the cabinet 1, the cooling water is continuously introduced into the cabinet 1, the return water with the raised temperature is continuously discharged, and the cabinet 1 is continuously cooled through such circulation.
Specifically, in this embodiment, the cooling system is composed of a cooling capacity distribution unit 3 and a cooling unit 2, the cooling capacity distribution unit 3 (CDU) is used for providing cooling water to the cooling unit 2, the cooling unit 2 transports the cooling water to the cabinet 1, the cooling water flows back to the cooling unit 2 after exchanging heat with the cabinet 1, the cooling unit 2 transports the cooling water to the cooling capacity distribution unit 3, the cooling capacity distribution unit 3 can reduce the temperature of the cooling water to form cooling water again, and the cooling water formed is transported to the cooling unit 2, so that the circulation is used for continuously cooling the cabinet 1.
In addition, the installation position of the refrigeration quantity distribution unit 3 is not limited in this embodiment, the refrigeration quantity distribution unit 3 may be placed in or outside the machine room, as described above, generally, multiple rows of sequentially arranged cabinets 1 are disposed in the machine room of the data center, and the refrigeration quantity distribution unit 3 may distribute cooling water in a balanced manner, and evenly deliver the cooling water to each row of cabinets 1, and may reduce the construction amount of on-site water pipes, shorten the construction period, and have higher reliability and flexibility.
The cooling system comprises at least two cooling units 2, each cooling unit 2 can independently perform processes of conveying cooling water to the cabinet 1 and discharging return water of the cabinet 1, in actual work, a plurality of cooling units 2 can work simultaneously, or only one cooling unit 2 can work, and after the working cooling unit 2 fails, the working cooling unit 2 can be switched to other cooling units 2, so that even if a certain cooling unit 2 fails, the other cooling units 2 replace the failed cooling unit 2 to work, the cooling system can continuously and uninterruptedly cool the data center, and the reliability and the cooling efficiency of the cooling system can be improved.
Specifically, each cooling unit 2 is composed of a water inlet trunk 21, a water outlet trunk 22, a water inlet branch 23, and a water outlet branch 24, the water inlet trunk 21 and the water outlet trunk 22 are connected to the cooling capacity distribution unit 3, as shown in fig. 2, for the case where multiple rows of cabinets 1 are provided in the data center, the water inlet trunk 21 and the water outlet trunk 22 are connected to the cooling capacity distribution unit 3 and correspond to the rows of cabinets 1, the cooling capacity distribution unit 3 distributes the cooling capacity evenly and then respectively delivers the cooling capacity to the water inlet trunk 21 corresponding to the rows of cabinets 1, that is, the water inlet trunk 21 is used for integrally delivering the cooling capacity to the rows of cabinets 1, and the water outlet trunk 22 is used for collecting the return water of the entire rows of cabinets 1 and delivering the return water to the cooling capacity distribution unit 3.
Each water inlet trunk 21 is connected with a plurality of water inlet branches 23, each water inlet branch 23 is correspondingly connected with each cabinet 1 in each row, cooling water in the water inlet trunk 21 is conveyed to the cabinets 1 through the water inlet branches 23, similarly, each water outlet trunk 22 is connected with a plurality of water outlet branches 24, each water outlet branch 24 is correspondingly connected with each cabinet 1 in each row, the cooling water cools the cabinets 1 and then increases the temperature, formed return water flows into the water outlet trunk 22 through the water outlet branches 24, and the water outlet trunk 22 conveys the return water to the cold energy distribution unit 3.
As shown in fig. 2, it should be noted that in this embodiment, the water inlet branch 23 and the water outlet branch 24 are both connected with a valve 4, and the valve 4 is used for controlling the on/off of the cabinet 1 and the water inlet main line 21 and the water outlet main line 22. In this embodiment, the valves 4 for controlling the on-off of the pipelines are all disposed on each water inlet branch 23 and each water outlet branch 24, the cooling water on the water inlet trunk 21 cannot enter the water inlet branch 23 by closing the valve 4 on a certain water inlet branch 23, the cabinet 1 connected to the water inlet branch 23 cannot be cooled continuously, and similarly, the return water in the water outlet branch 24 cannot be discharged to the water outlet trunk 22 by closing the valve 4 on a certain water outlet branch 24, so that the cabinet 1 cannot be cooled continuously because the cooling water in the cabinet 1 connected to the water outlet branch 24 cannot circulate.
By arranging the valves 4 only on the water inlet trunk 21 and the water outlet trunk 22, the valves 4 on the water inlet branch 23 and the water outlet trunk 22 can control the connection and disconnection of the corresponding cabinet 1 and the water inlet trunk 21 and the water outlet trunk 22, and can also control the flow rate and the flow speed of cooling water circulation in the cabinet 1.
Moreover, compared with the prior art in which the cooling water system is designed as a ring network, the valve 4 is not provided on the water inlet trunk 21 and the water outlet trunk 22 in this embodiment, and the cooling system of this embodiment includes a plurality of cooling units 2, as described above, when one valve 4 in the water inlet branch 23 and the water outlet branch 24 fails, the valve 4 can be closed, and the cooling unit 2 that can operate is switched to another cooling unit 2, that is, after the valve 4 fails, the valve 4 can be closed, and the cooling unit 2 corresponding to the water inlet branch 23 or the water outlet branch 24 where the valve 4 is located does not continue to operate, but is directly switched to another cooling unit 2 to perform cooling operation.
In this way, after switching to another cooling unit 2 to work, the failed valve 4 can be replaced and maintained, because the valve 4 is not arranged on the water inlet main line 21 and the water outlet main line 22 in this embodiment, there is no valve 4 on the closing ring network corresponding to both sides of the failed valve 4 in the prior art, which would affect the cooling of the cabinet 1 adjacent to the cabinet 1, in this embodiment, the failed valve 4 only affects the corresponding cabinet 1 so that it cannot be cooled continuously, and another cooling unit 2 can perform normal continuous cooling work on other cabinets 1. Therefore, the present embodiment can reduce the fault area of the valve 4, and can control the fault area within the range of one cabinet 1.
In addition, in this embodiment, after the valve 4 on one water inlet branch 23 or one water outlet branch 24 fails, since the operation of another cooling unit 2 can be switched, the cooling process of the cabinet 1 corresponding to the valve 4 may be interrupted, and the cooling process of the other cabinets 1 is not affected, so that the cooling efficiency can be improved. And, because do not set up valve 4 on water inlet trunk 21 and the water outlet trunk 22, therefore can carry out the prefabricated construction to water inlet trunk 21 and water outlet trunk 22 according to the design demand, this can improve the pipeline quality of water inlet trunk 21 and water outlet trunk 22 to the installation procedure is comparatively simple, can save the cost.
The valve 4 installed on the trunk is usually large in size because the water flow in the trunk is large, and in this embodiment, the valve 4 is not installed on the trunk, and only the valves 4 with relatively small sizes are installed on the water inlet branch 23 and the water outlet branch 24, so that the cost of the cooling system can be reduced. Moreover, when the working state of each valve 4 is checked, since the present embodiment does not include the valve 4 with a larger size on the trunk line, but only includes the valve 4 with a smaller size on the water inlet branch 23 and the water outlet branch 24, the working efficiency of the maintenance of the valve 4 can be improved, and the labor intensity can be reduced.
Illustratively, the valves 4 installed on the inlet branch 23 and the outlet branch 24 may be ball valves. In this embodiment, the valve 4 is disposed on the water inlet branch 23 and the water outlet branch 24, and the ball valve has a series of advantages of small fluid resistance, simple structure, small volume, light weight, good sealing performance, convenient operation and maintenance, and the like, so that the ball valve is suitable for being installed on the water inlet branch 23 and the water outlet branch 24. In addition, through the full-open or half-open of control ball valve, can control the flow and the velocity of flow that get into the cooling water in the rack 1 and discharge the backward flow water from rack 1, and then can regulate and control the flow and the velocity of flow of cooling water and backward flow water in whole cooling unit 2, can make cooling system better carry out cooling to rack 1 in the data center.
As shown in fig. 2, in one embodiment, the cooling unit 2 may include a first cooling unit 2a and a second cooling unit 2 b; the first cooling unit 2a may include a first water inlet trunk 21a, a first water outlet trunk 22a, a first water inlet branch 23a connected between the first water inlet trunk 21a and the cabinet 1, and a first water outlet branch 24a connected between the first water outlet trunk 22a and the cabinet 1; the second cooling unit 2b may include a second water inlet trunk 21b, a second water outlet trunk 22b, a second water inlet branch 23b connected between the second water inlet trunk 21b and the cabinet 1, and a second water outlet branch 24b connected between the second water outlet trunk 22b and the cabinet 1.
As shown in fig. 2, in this embodiment, the cooling unit 2 includes a first cooling unit 2a and a second cooling unit 2b, specifically, the first cooling unit 2a includes a first water inlet trunk 21a, a first water outlet trunk 22a, a first water inlet branch 23a and a first water outlet branch 24a, the first water inlet trunk 21a and the first water outlet trunk 22a are connected to the cooling capacity distribution unit 3, the first water inlet trunk 21a is connected to a plurality of first water inlet branches 23a, the first water inlet branches 23a are respectively connected to the corresponding cabinets 1, the first water outlet trunk 22a is connected to a plurality of first water outlet branches 24a, and the first water outlet branches 24a are respectively connected to the corresponding cabinets 1.
The second cooling unit 2b comprises a second water inlet trunk 21b, a second water outlet trunk 22b, a second water inlet branch 23b and a second water outlet branch 24b, the second water inlet trunk 21b and the second water outlet trunk 22b are connected with the cold quantity distribution unit 3, the second water inlet trunk 21b is connected with a plurality of second water inlet branches 23b, the second water inlet branches 23b are respectively connected with the corresponding cabinet 1, the second water outlet trunk 22b is connected with a plurality of second water outlet branches 24b, and the second water outlet branches 24b are respectively connected with the corresponding cabinet 1.
Through all setting up valve 4 on first branch road 23a of intaking and first branch road 24a of going out of first cooling unit 2a and second branch road 23b of intaking and second branch road 24b of second cooling unit 2b, can control the business turn over water of every rack 1 to avoided setting up valve 4 at first water inlet trunk 21a, first water outlet trunk 22a, second water inlet trunk 21b and second water outlet trunk 22 b.
Therefore, when the data center is cooled, one of the first cooling unit 2a and the second cooling unit 2b can be used for cooling, and after the valve 4 of the branch in the working cooling unit 2 fails, the valve 4 can be closed and switched to the other cooling unit 2 for cooling, so that the failure is controlled in only one cabinet 1 corresponding to the failed valve 4, the cooling work of the cooling system on the other cabinets 1 is not influenced, and the cooling efficiency of the cooling system can be improved.
For example, when the first cooling unit 2a is used to cool the data center, the valve 4 on the first water inlet branch 23a corresponding to a certain cabinet 1 of the first cooling unit 2a fails, and at this time, the valve 4 may be closed and switched to the second cooling unit 2b to cool the data center. Alternatively, the data center may be cooled by both the first cooling unit 2a and the second cooling unit 2b, and the entire cooling unit 2 may be shut off when the valve 4 in one branch fails.
It is understood that, in addition to the first cooling unit 2a and the second cooling unit 2b, a third cooling unit 2, a fourth cooling unit 2, and the like may be provided in the cooling system, and the present embodiment is not limited thereto.
As shown in fig. 2 and 3, in a possible embodiment, the cabinet 1 may be provided with one water inlet hole 11 and one water outlet hole 12; the first water inlet branch 23a and the second water inlet branch 23b are both communicated with a water inlet pipe and are connected with the water inlet hole 11 through the water inlet pipe; the first water outlet branch 24a and the second water outlet branch 24b are both communicated with a water outlet pipe and are connected with the water outlet hole 12 through the water outlet pipe.
In this embodiment, in order to facilitate the installation and connection of the first water inlet branch 23a and the second water inlet branch 23b, and the first water outlet branch 24a and the second water outlet branch 24b with the cabinet 1, and also facilitate the design of the cooling water loop in the cabinet 1, only one water inlet hole 11 and one water outlet hole 12 may be disposed on the cabinet 1, and the first water inlet branch 23a and the second water inlet branch 23b may be both connected with the water inlet hole 11 through a water inlet pipe, for example, the first water inlet branch 23a and the second water inlet branch 23b are two branch pipes on the water inlet pipe respectively; similarly, the first outlet branch 24a and the second outlet branch 24b may both be connected to the outlet hole 12 through an outlet pipe, for example, the first outlet branch 24a and the second outlet branch 24b are two branch pipes on the outlet pipe respectively.
In another possible embodiment, the cabinet 1 may be provided with a first water inlet hole 11, a second water inlet hole 11, a first water outlet hole 12 and a second water outlet hole 12; the first water inlet branch 23a and the second water inlet branch 23b are respectively connected with the first water inlet hole 11 and the second water inlet hole 11, and the first water outlet branch 24a and the second water outlet branch 24b are respectively connected with the first water outlet hole 12 and the second water outlet hole 12.
Except for the above-mentioned only setting up a inlet opening 11 and a apopore 12 on rack 1, because including first branch of intaking 23a, second branch of intaking 23b, first branch of leaving water 24a and second branch of leaving water 24b of being connected with rack 1, therefore also can set up two inlet openings 11 on rack 1, first branch of intaking 23a and second branch of leaving water 23b are connected with two inlet openings 11 respectively, and is the same, can set up two apopores 12 on rack 1, first branch of leaving water 24a and second branch of leaving water 24b are connected with two apopores 12 respectively.
Two cooling water loops can be arranged in the cabinet 1, wherein one cooling water loop enters from one water inlet 11 and flows out from one water outlet 12, and the other cooling water loop enters from the other water inlet 11 and flows out from the other water outlet 12; or, only one cooling water loop is provided in the cabinet 1, the two water inlet holes 11 are both connected to the cooling water loop in the cabinet 1, and the two water outlet holes 12 are also both connected to the cooling water loop in the cabinet 1.
As shown in fig. 2, in this embodiment, since the cooling system includes two cooling units 2, namely a first cooling unit 2a and a second cooling unit 2b, in order to enable the refrigeration capacity distribution unit 3 to control the two cooling units 2 more effectively, optionally, the refrigeration capacity distribution unit 3 may include a first refrigeration capacity distribution device 31 and a second refrigeration capacity distribution device 32, the first water inlet trunk 21a and the first water outlet trunk 22a are connected to the first refrigeration capacity distribution device 31, and the second water inlet trunk 21b and the second water outlet trunk 22b are connected to the second refrigeration capacity distribution device 32.
In this embodiment, the cold distribution unit 3 may be composed of a first cold distribution device 31 and a second cold distribution device 32, specifically, the first water inlet trunk 21a and the first water outlet trunk 22a are connected to the first cold distribution device 31, and the second water inlet trunk 21b and the second water outlet trunk 22b are connected to the second cold distribution device 32. Can control first cooling unit 2a through first cold volume distributor 31 like this, control second cooling unit 2b through second cold volume distributor 32, can be better through setting up two cold volume distributors cooling down to the backward flow water of respective corresponding cooling water unit to guarantee that the cooling water unit has better cooling effect, and to the better control of discharge and the velocity of flow in the cooling water unit, can improve the accuracy to the cooling water unit control.
As shown in fig. 3, optionally, the water inlet pipe and the water outlet pipe or the first water inlet branch 23a, the first water outlet branch 24a, the second water inlet branch 23b, and the second water outlet branch 24b may be connected to the cabinet 1 through the quick connectors 5. To first branch road 23a of intaking and second branch road 23b of intaking be connected through inlet tube and rack 1's inlet opening 11, the scheme that first branch road 24a of going out and second branch road 24b of going out are connected through outlet pipe and rack 1's apopore 12, inlet tube and outlet pipe pass through quick-operation joint 5 and connect, need not just can realize inlet tube and outlet pipe and rack 1's being connected and disconnection with the help of other instruments like this, the equipment is higher with the dismantlement efficiency, can save the labour.
Similarly, for the scheme that the first water inlet branch 23a and the second water inlet branch 23b are respectively connected with the two water inlets 11 of the cabinet 1, and the first water outlet branch 24a and the second water outlet branch 24b are respectively connected with the two water outlets 12 of the cabinet 1, the first water inlet branch 23a, the second water inlet branch 23b and the two water inlets 11, and the first water outlet branch 24a, the second water outlet branch 24b and the two water outlets 12 can also be connected by the quick connectors 5.
In addition, for example, the quick connector 5 and the water inlet pipe, the water outlet pipe or the first water inlet branch 23a, the second water inlet branch 23b, the first water outlet branch 24a, and the second water outlet branch 24b may be connected by threads.
As shown in fig. 2, in a possible embodiment, the cooling system may further include a room air conditioning unit 6 for air-cooling the cabinet 1, and the room air conditioning unit 6 may include at least one room air conditioner 61, and the room air conditioner 61 is arranged at a distance from the cabinet 1.
Besides the cooling unit 2 is arranged to directly carry out liquid cooling on the cabinet 1, in order to further improve the cooling efficiency of the cooling system on the data center, the cooling system further comprises a machine room air conditioning unit 6, and the cabinet 1 is cooled by the machine room air conditioning unit 6. The machine room air conditioning unit 6 comprises at least one machine room air conditioner 61, the machine room air conditioner 61 can blow cold air flow into the data center machine room, and the cold air flow can exchange heat with the cabinet 1, so that heat of the cabinet 1 is taken away, and air cooling is performed on the cabinet 1.
In specific application, for the case that the number of cabinets 1 in a data center room is small or the workload of the cabinets 1 is small, on the basis that the cooling units 2 are enough to effectively cool the cabinets 1, the room air conditioners 61 are not arranged, or the number of the room air conditioners 61 is small; or, in the case that the workload of the cabinet 1 is large, on the basis of improving the liquid cooling efficiency of the cooling unit 2, more machine room air conditioners 61 may be provided to further improve the cooling efficiency of the cooling system to the liquid center.
To the setting mode of computer lab air conditioner 61 in computer lab air conditioning unit 6, computer lab air conditioner 61 can arrange with rack 1 interval, so existing overall design that does benefit to the data center computer lab also is favorable to the cold air current that computer lab air conditioner 61 blew out to flow in the computer lab, and computer lab air conditioner 61 is nearer with rack 1's distance, can dispel the heat to rack 1 more fast to improve computer lab air conditioner 61's cooling efficiency.
It should be noted that, in the embodiment, the placing manner of the air conditioner 61 in the machine room is not particularly limited, and may be determined according to actual requirements and design.
As shown in fig. 2, in one embodiment, a machine room air conditioner 61 may be disposed between every two cabinets 1. Through set up a computer lab air conditioner 61 between per two rack 1, to the rack 1 that is located the both ends of every row, can set up a computer lab air conditioner 61 between this rack 1 and adjacent rack 1, every rack 1 all has one side and computer lab air conditioner 61 adjacent like this, and computer lab air conditioner 61 adjacent with rack 1 can be faster, more effectual cools off like this, and every rack 1 all can obtain better cooling.
The cooling system provided by the embodiment is used for cooling a data center, the data center is provided with a plurality of cabinets, the cooling system comprises a cooling capacity distribution unit and at least two cooling units, each cooling unit consists of a water inlet main road, a water outlet main road, a water inlet branch road and a water outlet branch road, the water inlet main road and the water outlet main road are connected with the cooling capacity distribution unit, the water inlet branch road is connected between the water inlet main road and the cabinets, and the water outlet branch road is connected between the water outlet main road and the cabinets, so that the cooling capacity distribution unit can convey cooling water to the cabinets through the water inlet main road and the water inlet branch road and take away heat of the cabinets through the water outlet branch road and the water outlet main road so as to cool the cabinets; wherein, through connecting the valve on water inlet branch road and play water branch road, the valve can control the rack like this and intake the water main road and go out the connection and the disconnection of water main road to owing to do not set up the valve on the road, therefore the valve trouble back of a certain branch road, can only control a rack of being connected with this branch road with the fault domain, the fault domain is less, and owing to be provided with a plurality of cooling unit, therefore can wholly switch over to another cooling unit and carry out cooling work, can improve cooling system's cooling efficiency like this.
The above-described embodiments should not be construed as limiting the scope of the present application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A cooling system for a data center comprising a plurality of racks arranged in an array, characterized in that the cooling system comprises a refrigeration distribution unit and at least two cooling units, each cooling unit comprising: the water inlet main road, the water outlet main road, the water inlet branch road and the water outlet branch road;
the water inlet branch is connected between the cabinet and the water inlet trunk, the water outlet branch is connected between the cabinet and the water outlet trunk, the water inlet trunk and the water outlet trunk are both connected with the cold energy distribution unit, and the cold energy distribution unit is used for conveying cooling water to the cabinet through the water inlet trunk and taking away heat of the cabinet through the water outlet trunk;
the water inlet branch and the water outlet branch are connected with valves, and the valves are used for controlling the on-off of the cabinet, the water inlet trunk and the water outlet trunk.
2. The cooling system of claim 1, wherein the cooling unit comprises a first cooling unit and a second cooling unit;
the first cooling unit comprises a first water inlet main road, a first water outlet main road, a first water inlet branch road connected between the first water inlet main road and the cabinet and a first water outlet branch road connected between the first water outlet main road and the cabinet;
the second cooling unit comprises a second water inlet main road, a second water outlet main road, a second water inlet branch road connected between the second water inlet main road and the cabinet and a second water outlet branch road connected between the second water outlet main road and the cabinet;
the first water inlet branch, the first water outlet branch, the second water inlet branch and the second water outlet branch are all provided with the valves.
3. The cooling system according to claim 2, wherein the cabinet is provided with one water inlet hole and one water outlet hole; the first water inlet branch and the second water inlet branch are both communicated with a water inlet pipe and are connected with the water inlet hole through the water inlet pipe; the first water outlet branch and the second water outlet branch are communicated with a water outlet pipe and are connected with the water outlet hole through the water outlet pipe.
4. The cooling system according to claim 2, wherein the cabinet is provided with two water inlet holes and two water outlet holes; the first water inlet branch and the second water inlet branch are respectively connected with the two water inlet holes, and the first water outlet branch and the second water outlet branch are respectively connected with the two water outlet holes.
5. Cooling system according to any one of claims 2-4, characterised in that the refrigeration distribution unit comprises a first refrigeration distribution device and a second refrigeration distribution device, the first water inlet trunk and the first water outlet trunk being connected to the first refrigeration distribution device and the second water inlet trunk and the second water outlet trunk being connected to the second refrigeration distribution device.
6. The cooling system according to claim 3 or 4, wherein the water inlet pipe and the water outlet pipe or the first water inlet branch, the first water outlet branch, the second water inlet branch and the second water outlet branch are connected with the cabinet through quick connectors.
7. The cooling system according to any one of claims 1 to 4, wherein the valve is a ball valve.
8. The cooling system according to any one of claims 1-4, wherein the data center comprises at least one row of the cabinets, each row of the cabinets comprising at least two cabinets arranged in sequence.
9. The cooling system of claim 8, further comprising a room air conditioning unit for air cooling the cabinet, the room air conditioning unit including at least one room air conditioner, the room air conditioner being spaced apart from the cabinet.
10. The cooling system according to claim 9, wherein one machine room air conditioner is disposed between every two of the cabinets.
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