CN111491482A - Cooling device, server cabinet system and fault processing method - Google Patents

Cooling device, server cabinet system and fault processing method Download PDF

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Publication number
CN111491482A
CN111491482A CN201910073956.7A CN201910073956A CN111491482A CN 111491482 A CN111491482 A CN 111491482A CN 201910073956 A CN201910073956 A CN 201910073956A CN 111491482 A CN111491482 A CN 111491482A
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China
Prior art keywords
cooling
heat exchange
main line
branches
cooling device
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CN201910073956.7A
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Chinese (zh)
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张路路
万积清
刘佳
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Vertiv Tech Co Ltd
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Vertiv Tech Co Ltd
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Priority to CN201910073956.7A priority Critical patent/CN111491482A/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
    • H05K7/20836Thermal management, e.g. server temperature control

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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 embodiment of the invention provides a cooling device, a server cabinet system and a fault handling method, relates to the technical field of refrigeration, and aims to solve the technical problems of insufficient reliability, inconvenient maintenance and low fault tolerance rate of cooling equipment in the prior art; the cooling device of the present invention includes: the cold supply main line, the backflow main line, the at least two cold sources, the cold supply branches, the backflow branches and the heat exchange units are the same in number; wherein, the cold source is connected in parallel with the cold supply main line and the reflux main line; the cooling main line is provided with a plurality of cooling branches in parallel, and the plurality of cooling branches are respectively butted with the plurality of heat exchange units; the backflow trunk is provided with a plurality of backflow branches in parallel, and the backflow branches are respectively in one-to-one butt joint with the heat exchange units. The cooling device provided by the embodiment of the invention can avoid the situation that the whole device cannot work normally when a certain part of the whole device breaks down, thereby having good reliability and high fault tolerance rate.

Description

Cooling device, server cabinet system and fault processing method
Technical Field
The invention relates to the technical field of refrigeration, in particular to a cooling device, a server cabinet system and a fault processing method.
Background
Along with the development of the IT industry, the heat dissipation density of a server cabinet is higher and higher, the heat dissipation density of the traditional cabinet is mostly about 5kW, and the server cabinet is generally cooled by an air cooling mode.
However, the high heat density cabinets of the prior art have reached 20kW, even 30 kW; therefore, the traditional heat dissipation method cannot meet the heat dissipation requirement of the high-heat-density cabinet, and in order to improve the heat dissipation effect, the prior art starts to use a refrigeration method to dissipate heat of the high-heat-density cabinet; for example, a refrigeration device is adopted to convey a cold source to a server cabinet in a heat pipe manner so as to dissipate heat of the server cabinet; in the prior art, heat dissipation is generally performed for a plurality of server cabinets by one refrigeration device, but because the whole heat dissipation pipeline is too large, when a certain point in the heat dissipation pipeline has a fault, such as blockage; the whole heat dissipation pipeline can not be normally used, so that heat dissipation of the server cabinet can not be performed, and even paralysis of the server can be caused.
In addition, when the leakage occurs in the heat dissipation pipeline, the leakage cannot be known by the working personnel in time, and meanwhile, corresponding remedial measures cannot be taken in time to maintain the normal operation of the refrigeration equipment.
Therefore, the heat dissipation device in the prior art still has the technical problems of insufficient reliability, inconvenient maintenance and low fault tolerance rate.
Disclosure of Invention
The invention provides a cooling device, a server cabinet system and a fault processing method, which have the advantages of high reliability, convenience in maintenance and high fault tolerance rate.
A cooling device, comprising: the cold supply main line, the backflow main line, the at least two cold sources, the cold supply branches, the backflow branches and the heat exchange units are the same in number;
wherein, the cold source is connected in parallel with the cold supply main line and the reflux main line;
the cooling main line is provided with a plurality of cooling branches in parallel, and the plurality of cooling branches are respectively in one-to-one butt joint with the plurality of heat exchange units;
the backflow trunk circuit is provided with a plurality of backflow branches in parallel, and the backflow branches are respectively in one-to-one butt joint with the heat exchange units;
the cooling device also comprises a monitoring system and a control system;
the monitoring system includes: the system comprises a plurality of detectors, a controller and a controller, wherein the detectors are used for monitoring whether leakage points exist in at least one pipeline of a cooling main circuit, a return main circuit, a cooling branch circuit and a return branch circuit;
the control system includes: and a plurality of control valves for controlling the opening and closing of the plurality of control valves according to detection signals of the plurality of detectors.
As an example, a plurality of said control valves are located on either side of a junction in the pipeline.
As an example, the cooling device has two of the cold sources;
the first ends of the cold supply main line and the return main line are in butt joint with one cold source;
and second ends of the cold supply main line and the return main line are butted with the other cold source.
As an example, the plurality of cooling branches are uniformly distributed between the first end and the second end of the cooling trunk;
the plurality of return branch circuits are uniformly distributed between the first end and the second end of the return trunk circuit.
As an example, the heat exchange unit comprises a plurality of heat exchange tubes arranged in parallel.
As an example, the cooling device further comprises the same number of first valve bodies as the cold source;
the first valve body is arranged on the cold supply trunk and respectively close to the cold source, and is used for adjusting the output flow of the cold source.
As an example, the cooling device further includes a second valve body, the second valve body is disposed on the cooling branch, and the second valve body is disposed between two adjacent cooling branches.
As an example, the cooling device further includes a number of third valve bodies equal to the number of the cooling branches, and each of the cooling branches is provided with one third valve body.
The cold source is any one of a water chilling unit, a cooling tower, a dry cooler and a fluorine pump.
A server cabinet system comprises a server cabinet and any one of the cooling devices;
wherein, the heat exchange unit is used for cooling the server cabinet.
As an example, the back plate of the server cabinet is provided with one heat exchange unit.
A fault handling method for a cooling device, comprising: monitoring whether a fault point exists in the pipeline;
and if the fault point is monitored, controlling the control valves positioned at the two sides of the fault point to be closed.
The embodiment of the invention has the beneficial effects that:
the cooling device provided by the embodiment of the invention can avoid the situation that the whole device cannot work normally when a certain part of the whole device breaks down, thereby having good reliability and high fault tolerance rate.
Drawings
FIG. 1 is a schematic structural view of a cooling apparatus according to a first embodiment of the present invention;
fig. 2 is a schematic structural view of a cooling apparatus according to a first embodiment of the present invention, in which a failure point occurs;
FIG. 3 is a schematic structural diagram illustrating a cooling source in a cooling device according to a first embodiment of the present invention when the cooling source fails;
FIG. 4 is a schematic structural view of a cooling apparatus according to a second embodiment of the present invention;
FIG. 5 is a schematic structural view of a cooling apparatus according to a third embodiment of the present invention;
FIG. 6 is a schematic structural view of a cooling apparatus according to a fourth embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a rack server system according to an embodiment of the present invention;
fig. 8 is a flowchart of a fault handling method according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings.
In a first aspect, an embodiment of the present invention provides a cooling device, including: the cold supply main line, the backflow main line, the at least two cold sources, the cold supply branches, the backflow branches and the heat exchange units are the same in number; wherein, the cold source is connected in parallel and in butt joint with the cold supply main line and the reflux main line; a plurality of cooling branches are arranged on the cooling main line in parallel, and are respectively in one-to-one butt joint with the plurality of heat exchange units; a plurality of backflow branches are connected in parallel on the backflow trunk circuit and are respectively in one-to-one butt joint with the plurality of heat exchange units; furthermore, the cooling device also comprises a monitoring system and a control system; wherein, monitoring system includes: the system comprises a plurality of detectors, a controller and a controller, wherein the detectors are used for monitoring whether leakage points exist in at least one pipeline of a cooling main circuit, a return main circuit, a cooling branch circuit and a return branch circuit; the control system includes: and a plurality of control valves for controlling the opening and closing of the plurality of control valves according to the detection signal of the detector.
Specifically, at least two cold sources are used for supplying cold to the cold supply main line (through a cooling medium such as water, freon and the like) and are divided into each cold supply branch line; and the cooling medium is heated after flowing through the heat exchange unit, and is respectively converged into the backflow trunk lines through the corresponding backflow branch lines, and then flows back to the cold source to cool the cooling medium, so that the whole circulation process is completed.
The cold sources are arranged in the cold supply main line in parallel and used for supplying cold to the heat exchange units of the cold supply main line, so that when one or more cold sources are in fault, the rest cold sources can still supply cold to the cold supply main line (the heat exchange units) comprehensively; furthermore, the cooling branch is in butt joint with the inlet of the corresponding heat exchange unit, and the backflow branch is in butt joint with the outlet of the corresponding heat exchange unit, so that the heat exchange unit is arranged in the cooling main line and the backflow main line in parallel through the cooling branch and the backflow branch (namely, the cooling device integrally adopts a ring network layout form), and when one or the heat exchange unit fails, other heat exchange units can still normally work, and mutual influence among the heat exchange units is avoided.
In the figure, thin solid lines indicate a cooling main line and a cooling branch line, and dotted lines indicate a return main line and a return branch line.
Specifically, as shown in fig. 1, in a first embodiment provided by the present invention, a cooling device has two cooling sources (a cooling source 1 and a cooling source 2); the first ends (the left end in the figure) of the cooling main line and the backflow main line are butted with one cold source (the cold source 1); the second ends (the right end in the figure) of the cold supply main line and the return main line are butted with another cold source (a cold source 2).
Wherein, in this embodiment, have eight heat exchange unit altogether, every heat exchange unit is cooled by the cold source that the distance is nearer, promptly, and four heat exchange unit on the left are cooled by cold source 1, and four heat exchange unit on the right are cooled by cold source 2.
Further, referring to fig. 2, fig. 2 shows a fault point X on the cooling main line, which obstructs the circulation of the cooling medium in the cooling main line; in this case, the two heat exchange units on the left side can still continue to be cooled by the cold source 1, and the six heat exchange units on the right side are cooled by the cold source 2. Thereby ensuring that each heat exchange unit can still work normally.
Further, in order to adjust the flow, two first valve bodies (not shown in the figure) may be disposed on the condensing trunk for respectively controlling the output flows of the cooling source 1 and the cooling source 2.
Specifically, as shown in fig. 1, when there is no fault point in the cooling device, the output flow rates of the cold source 1 and the cold source 2 can be the same by adjusting the two first valve bodies, so as to ensure that the flow rates of the cooling medium flowing into each heat exchange unit are the same.
As shown in fig. 2, when a fault point occurs in the cooling device, the output flow rate of the cold source 1 can be lower than the output flow rate of the cold source 2 by adjusting the two first valve bodies, so as to ensure that the flow rate of the cooling medium flowing into each heat exchange unit is the same.
Further, referring to fig. 3, fig. 3 shows a case where the cold source 1 fails; in this case, all the heat exchange units are cooled by the cold source 1 and the cold source 2 instead of being cooled by the cold source 2. Thereby ensuring that each heat exchange unit can still work normally.
Furthermore, in order to adjust the flow, two first valve bodies can be arranged on the condensation trunk for respectively controlling the output flows of the cooling source 1 and the cooling source 2.
Specifically, as shown in fig. 1, when there is no fault point in the cooling device, the output flow rates of the cold source 1 and the cold source 2 can be the same by adjusting the two first valve bodies, so as to ensure that the flow rates of the cooling medium flowing into each heat exchange unit are the same.
In the above-described embodiment, the case where the fault point X obstructs the flow of the cooling medium is shown; in practice, however, the fault point X may also be a leak point, resulting in leakage of the cooling medium from the line.
In order to deal with the situation where the fault point X is a leakage point, the monitoring system and the control system may be relied on in the embodiments provided in the present application to maintain the normal operation of the cooling device.
Specifically, the detectors are at least arranged in the cooling main line, the return main line, the cooling branch line and the return branch line so as to monitor whether leakage points exist in the pipelines or not. Wherein, the detector can be a sensor for detecting the concentration of the cooling liquid; for example, when the cooling liquid is freon, the detector can be a catalytic combustion type, an electrochemical type or an infrared sensor, and when the corresponding detector detects that the concentration of the freon exceeds a preset value, an electric signal is sent to the controller; and after receiving the electric signal, the controller controls the corresponding control valve to close so as to close the pipeline with the leakage point. Wherein, in order to reduce the harmful effects of the leak point to whole cooling device, the control valve can set up a plurality ofly as far as possible to when the leak point appears, only need to close the control valve that is located the leak point both sides can. Of course, in order to reduce the cost of the control valve, it is practical to place the control valve on both sides of the connection of the pipelines, since it is considered that the leakage point usually occurs at the connection of the pipelines. When the leakage occurs at the joint, the control valves at the two sides of the joint are only required to be closed.
Further, as shown in fig. 3, when the cold source 1 in the cooling device fails, the output flow of the cold source 2 can be increased by adjusting the first valve body for controlling the output flow of the cold source 2, so as to meet the cooling requirements of all the heat exchange units. And meanwhile, the first valve body for controlling the output flow of the cold source 1 can be completely closed so as to overhaul the cold source 1.
Further, in order to improve the reliability of the heat exchange units, as shown in fig. 4, in a second embodiment provided by the present invention, each heat exchange unit includes two heat exchange tubes (each heat exchange unit in the figure is divided into an upper small unit and a lower small unit) arranged in parallel, so that when one heat exchange tube fails, the whole heat exchange unit can still realize the heat exchange (cooling) function through the other heat exchange tube;
specifically, the heat exchange tube can be of an S-shaped, return-shaped or spiral structure so as to have a larger heat exchange area; the heat exchange tube can be a stainless steel tube, a copper tube and the like, the material and the specific shape of the heat exchange tube are not particularly limited, and a person skilled in the art can adaptively select and adjust the material and the shape of the heat exchange tube according to actual requirements.
It should be noted that, in consideration of convenience of installation in engineering, the heat exchange units in the first embodiment and the second embodiment both adopt an upward-outward mode, that is, the inlet and the outlet of each heat exchange unit are both arranged at the upper end (on the same side); of course in other embodiments the location of the inlet and outlet of each heat exchange unit may be varied.
For example, as shown in fig. 5, in the third embodiment of the present invention, a bottom-in-top-out manner is adopted, i.e., the inlet of each heat exchange unit is disposed at the lower end thereof, and the outlet is disposed at the upper end thereof.
In addition, in specific implementation, the structure type of the cold source can be various, wherein the cold source can be any one of a water chilling unit, a cooling tower, a dry cooler and a fluorine pump; of course, the types of the structures of the plurality of cooling sources in the cooling device may be the same or different.
For example, as shown in fig. 6, in the fourth embodiment provided by the present invention, both the cold sources are a combination of a cooling tower and an intermediate heat exchanger; certainly, in order to increase the cooling effect, a corresponding pump body may be further provided to accelerate the circulation of the cooling medium, and meanwhile, the structural type of the cold source is not limited to the specific structural type shown in the present invention, and a person skilled in the art may make corresponding selection and adjustment according to the actual situation.
It should be noted that, the cooling device in the above embodiment may further include a second valve body (not shown in the figure), the second valve body is disposed on the cooling main line, and the second valve body is disposed between two adjacent cooling branches, so as to achieve diversified adjustment of the flow rate of the cooling medium, and in addition, the working efficiency during maintenance and repair can be improved. For example, when the heat exchange unit between two adjacent second valve bodies fails, the two valve bodies can be closed, so that the heat exchange unit can be repaired and disassembled.
In addition, the cooling device in the above embodiment may further include third valve bodies (not shown in the figure), wherein the number of the third valve bodies is the same as the number of the cooling branches, and each cooling branch is provided with one third valve body, so as to realize diversified adjustment of the flow rate of the cooling medium, and in addition, the working efficiency during maintenance and overhaul and the working reliability of the cooling device can be improved; for example, when one of the heat exchange units has a leakage problem, the corresponding third valve body can be closed in time, so that the leakage is prevented from causing adverse effects on the whole cooling device.
In addition, the number of the cold sources in the cooling device is not limited to two shown in the embodiments of the present invention, in other embodiments, the number of the cold sources may also be three, four or more, and of course, each cold source should be arranged in parallel to avoid the mutual influence between the cold sources.
In a second aspect, the embodiment of the present invention further provides a fault handling method for the cooling device; as shown in fig. 8, the method includes: s1: monitoring whether a leakage point exists in the pipeline; if there is a leak, go to step S2: the control valves on both sides of the leak are controlled to close. The fault processing method can realize timely finding when the leakage point exists in the pipeline of the cooling device, and take corresponding measures to isolate the leakage point so as to prevent the cooling medium in the pipeline from continuously leaking, further ensure the normal operation of the cooling device, and simultaneously avoid the environment and personal injury caused by the leakage of the cooling liquid.
In a third aspect, an embodiment of the present invention further provides a server rack system, including a server rack and the cooling device described above; wherein, heat exchange unit is used for cooling the server rack. Because the heat dissipation density of the server cabinet is higher, if the heat dissipation performance is poor or a cooling fault occurs, the server is easy to break down; however, the cooling device of the embodiment can greatly avoid the problem of poor cooling effect when a pipeline, a cold source or a heat exchange unit in the cooling device breaks down, thereby having higher stability.
Specifically, as shown in fig. 7, in the embodiment provided by the present invention, each heat exchange unit may be integrated with a back plate of each server cabinet for convenience of installation, that is, each back plate is provided with one heat exchange unit; of course, the heat exchange unit may have only one heat exchange tube, or may have two or more heat exchange tubes arranged in parallel.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (12)

1. A cooling apparatus, comprising: the cold supply main line, the backflow main line, the at least two cold sources, the cold supply branches, the backflow branches and the heat exchange units are the same in number;
wherein, the cold source is connected in parallel with the cold supply main line and the reflux main line;
the cooling main line is provided with a plurality of cooling branches in parallel, and the plurality of cooling branches are respectively in one-to-one butt joint with the plurality of heat exchange units;
the backflow trunk circuit is provided with a plurality of backflow branches in parallel, and the backflow branches are respectively in one-to-one butt joint with the heat exchange units;
the cooling device also comprises a monitoring system and a control system;
the monitoring system includes: the system comprises a plurality of detectors, a controller and a controller, wherein the detectors are used for monitoring whether leakage points exist in at least one pipeline of a cooling main circuit, a return main circuit, a cooling branch circuit and a return branch circuit;
the control system includes: and a plurality of control valves for controlling the opening and closing of the plurality of control valves according to detection signals of the plurality of detectors.
2. A cooling device according to claim 1, characterized in that the control valve is provided on both sides of the connection in the line.
3. The cooling device as claimed in claim 1, wherein the cooling device has two of the cold sources;
the first ends of the cold supply main line and the return main line are in butt joint with one cold source;
and second ends of the cold supply main line and the return main line are butted with the other cold source.
4. The cooling device as claimed in claim 3, wherein a plurality of said cooling branches are evenly distributed between a first end and a second end of said cooling trunk;
the plurality of return branch circuits are uniformly distributed between the first end and the second end of the return trunk circuit.
5. The cooling apparatus of claim 1, wherein the heat exchange unit comprises a plurality of heat exchange tubes arranged in parallel.
6. The cooling device as claimed in claim 1, further comprising the same number of first valve bodies as the cool source;
the first valve body is arranged on the cold supply trunk and respectively close to the cold source, and is used for adjusting the output flow of the cold source.
7. The cooling device according to claim 1, further comprising a second valve body disposed on the cooling branch, and the second valve body is disposed between two adjacent cooling branches.
8. A cooling device according to claim 1, characterized in that the cooling device further comprises a number of third valve bodies equal to the number of cooling branches, one third valve body being provided on each cooling branch.
9. The cooling device of claim 1, wherein the cold source is any one of a water chilling unit, a cooling tower, a dry cooler and a fluorine pump.
10. A server rack system comprising a server rack, further comprising a cooling apparatus as claimed in any one of claims 1 to 9;
wherein, the heat exchange unit is used for cooling the server cabinet.
11. The rack server system according to claim 10, wherein one of the heat exchange units is disposed on a back plate of the server rack.
12. A fault handling method for a cooling device, comprising:
monitoring whether a leakage point exists in the pipeline;
and if the leakage point is detected, controlling the control valves positioned at the two sides of the leakage point to be closed.
CN201910073956.7A 2019-01-25 2019-01-25 Cooling device, server cabinet system and fault processing method Pending CN111491482A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112746261A (en) * 2020-11-27 2021-05-04 乐金显示光电科技(中国)有限公司 Cooling system and control method thereof
CN112942487A (en) * 2021-02-03 2021-06-11 杭州富春云科技有限公司 Automatic and emergent water charging system of data center

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CN204557361U (en) * 2015-05-08 2015-08-12 四川斯普信信息技术有限公司 A kind of equipment cabinet server back plate type heat-pipe radiating apparatus
CN105784287A (en) * 2016-04-24 2016-07-20 中国大唐集团科学技术研究院有限公司西北分公司 Temperature control resistor, and device and method of detecting leakage of expansion joints in heat supply pipeline
CN108601314A (en) * 2018-07-09 2018-09-28 郑州云海信息技术有限公司 A kind of liquid cooling system and flow rate adjusting method
CN209845599U (en) * 2019-01-25 2019-12-24 维谛技术有限公司 Cooling device and server cabinet system

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
CN204557361U (en) * 2015-05-08 2015-08-12 四川斯普信信息技术有限公司 A kind of equipment cabinet server back plate type heat-pipe radiating apparatus
CN105784287A (en) * 2016-04-24 2016-07-20 中国大唐集团科学技术研究院有限公司西北分公司 Temperature control resistor, and device and method of detecting leakage of expansion joints in heat supply pipeline
CN108601314A (en) * 2018-07-09 2018-09-28 郑州云海信息技术有限公司 A kind of liquid cooling system and flow rate adjusting method
CN209845599U (en) * 2019-01-25 2019-12-24 维谛技术有限公司 Cooling device and server cabinet system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112746261A (en) * 2020-11-27 2021-05-04 乐金显示光电科技(中国)有限公司 Cooling system and control method thereof
CN112746261B (en) * 2020-11-27 2023-08-29 乐金显示光电科技(中国)有限公司 Cooling system and control method thereof
CN112942487A (en) * 2021-02-03 2021-06-11 杭州富春云科技有限公司 Automatic and emergent water charging system of data center

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