CN114449857A - Liquid cooling system - Google Patents
Liquid cooling system Download PDFInfo
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- CN114449857A CN114449857A CN202210106802.5A CN202210106802A CN114449857A CN 114449857 A CN114449857 A CN 114449857A CN 202210106802 A CN202210106802 A CN 202210106802A CN 114449857 A CN114449857 A CN 114449857A
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- 238000001816 cooling Methods 0.000 title claims abstract description 137
- 239000007788 liquid Substances 0.000 title claims abstract description 136
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 113
- 238000004891 communication Methods 0.000 claims abstract description 23
- 238000011144 upstream manufacturing Methods 0.000 claims description 13
- 238000009530 blood pressure measurement Methods 0.000 claims description 9
- 238000009529 body temperature measurement Methods 0.000 claims description 8
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 10
- 230000003020 moisturizing effect Effects 0.000 description 13
- 238000007872 degassing Methods 0.000 description 11
- 230000001105 regulatory effect Effects 0.000 description 7
- 239000010865 sewage Substances 0.000 description 5
- 238000011161 development Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000008234 soft water Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20763—Liquid cooling without phase change
- H05K7/20781—Liquid cooling without phase change within cabinets for removing heat from server blades
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention relates to the technical field of server heat dissipation equipment, in particular to a liquid cooling system, which comprises at least two sets of heat exchange modules, a communication pipeline and a communication valve which are arranged in parallel, wherein each set of heat exchange module comprises a cooling tower and a circulating pump, a liquid outlet of the cooling tower is communicated with a cold water pipeline of at least one liquid cooling heat exchange unit through a first pipeline, a liquid inlet of the cooling tower is communicated with a liquid outlet of the circulating pump through a second pipeline, and a liquid inlet of the circulating pump is communicated with a hot water pipeline of at least one liquid cooling heat exchange unit through a third pipeline; one communication pipeline is communicated between the second pipelines of each two sets of heat exchange modules; the communicating valves are arranged on the communicating pipelines, and each communicating pipeline is provided with the communicating valve.
Description
Technical Field
The invention relates to the technical field of server heat dissipation equipment, in particular to a liquid cooling system.
Background
With the development of information technology, the increase of the heat dissipation capacity of the server and the heat dissipation density of the machine room partially depends on the heat dissipation mode of the precise air conditioner of electric power, and is gradually replaced by a novel refrigeration mode. With the rapid development of mobile data, cloud computing and big data services, the construction scale of a data center is larger and larger, the density of a single cabinet is increased, the heat productivity of a server equipment chip is also increased, the traditional air cooling mode has large power consumption and cannot meet the heat dissipation requirement of IT equipment, and the energy-saving appeal of the data center is gradually highlighted. Therefore, the liquid cooling system is used for dissipating heat of the server, which becomes the direction of technical development, the liquid cooling system needs to take out heat and dissipate the heat to the outside in the heat dissipation process, and a natural cold source is utilized to the maximum extent, so that the energy conservation and the reliability of the system are improved.
With the arrival of the big data era, the scale of a data center is larger and larger, the number of servers is also greatly increased, more servers need to be cooled through a liquid cooling system, and the liquid cooling system cannot operate reliably when main equipment of the liquid cooling system is damaged.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the liquid cooling system cannot be reliably operated when main equipment of the liquid cooling system in the prior art is damaged, thereby providing the liquid cooling system.
In order to solve the problems, the invention provides a liquid cooling system which comprises at least two sets of heat exchange modules, a communication pipeline and a communication valve which are arranged in parallel, wherein each set of heat exchange module comprises a cooling tower and a circulating pump, a liquid outlet of the cooling tower is communicated with a cold water pipeline of at least one liquid cooling heat exchange unit through a first pipeline, a liquid inlet of the cooling tower is communicated with a liquid outlet of the circulating pump through a second pipeline, and a liquid inlet of the circulating pump is communicated with a hot water pipeline of at least one liquid cooling heat exchange unit through a third pipeline; one communication pipeline is communicated between the second pipelines of each two sets of heat exchange modules; the communicating valves are arranged on the communicating pipelines, and each communicating pipeline is provided with the communicating valve.
In the liquid cooling system provided by the invention, each set of heat exchange module further comprises a sewage degassing device, the sewage degassing device is arranged on the third pipeline, a liquid inlet of the sewage degassing device is communicated with a hot water pipeline of at least one liquid cooling heat exchange unit through an upstream branch of the third pipeline, and a liquid outlet of the sewage degassing device is communicated with a liquid inlet of the circulating pump through a downstream branch of the third pipeline.
In the liquid cooling system provided by the invention, each set of the heat exchange module further comprises:
a fourth pipeline, one end of which is communicated with the upstream branch and the other end of which is communicated with the downstream branch;
and the first switching valve is arranged on the fourth pipeline.
In the liquid cooling system provided by the invention, each set of the heat exchange module further comprises:
the pressure measuring structure is arranged at the liquid inlet of the circulating pump and/or the liquid outlet of the circulating pump;
one end of the fifth pipeline is communicated with the upstream branch, and the other end of the fifth pipeline is communicated with the second pipeline;
and the first valve group is arranged on the fifth pipeline, and the opening and closing state of the first valve group is adjusted according to the pressure measurement result of the pressure measurement structure.
The liquid cooling system provided by the invention also comprises a first water replenishing module, wherein the first water replenishing module comprises:
a solution tank;
the constant-pressure water supplementing device is communicated with a liquid outlet of the solution tank;
and the first water replenishing pipeline is communicated with a liquid outlet of the constant-pressure water replenishing device and the upstream branch of each heat exchange module.
The liquid cooling system provided by the invention also comprises:
the pressure relief pipeline is communicated with the second pipeline of each set of heat exchange module and is communicated with the solution tank;
and the pressure relief valves are arranged on the pressure relief pipelines, and each set of heat exchange module is provided with one pressure relief valve.
In the liquid cooling system provided by the invention, each set of the heat exchange module further comprises:
the temperature measuring structure is arranged on the first pipeline and is positioned close to a liquid outlet of the cooling tower;
one end of the sixth pipeline is communicated with the first pipeline, and the other end of the sixth pipeline is communicated with the second pipeline;
and the second valve bank is arranged on the sixth pipeline, and the opening and closing states of the second valve bank are adjusted according to the temperature measurement result of the temperature measurement structure.
The liquid cooling system provided by the invention also comprises:
the first pipeline is communicated with the water supply loop and is communicated with a cold water pipeline of at least one liquid-cooling heat exchange unit through the water supply loop;
and the third pipeline is communicated with the water return loop and is communicated with a hot water pipeline of at least one liquid cooling heat exchange unit through the water return loop.
The liquid cooling system provided by the invention also comprises a second water replenishing module, wherein the second water replenishing module comprises:
a water replenishing tank;
and the water replenishing pump is communicated with the water replenishing tank through a seventh pipeline and is communicated with the water replenishing port of each cooling tower through an eighth pipeline.
In the liquid cooling system provided by the invention, the second water replenishing module further comprises a water softening device, a water outlet of the water softening device is communicated with the water replenishing tank, and a water inlet of the water softening device is communicated with a water source.
The invention has the following advantages:
1. the liquid cooling system provided by the invention comprises at least two sets of heat exchange modules, a communication pipeline and a communication valve which are arranged in parallel, wherein each set of heat exchange module comprises a cooling tower and a circulating pump, a liquid outlet of the cooling tower is communicated with a cold water pipeline of at least one liquid cooling heat exchange unit through a first pipeline, a liquid inlet of the cooling tower is communicated with a liquid outlet of the circulating pump through a second pipeline, and a liquid inlet of the circulating pump is communicated with a hot water pipeline of at least one liquid cooling heat exchange unit through a third pipeline; one communication pipeline is communicated between the second pipelines of each two sets of heat exchange modules; the communicating valves are arranged on the communicating pipelines, and each communicating pipeline is provided with the communicating valve.
When the cooling tower and/or the circulating pump of one set of heat exchange module breaks down, other heat exchange modules can be started to perform heat dissipation work, and the broken-down cooling tower and/or the broken-down circulating pump can be overhauled. When one of the cooling tower or the circulating pump of each set of heat exchange module breaks down, two sets of heat exchange modules with different main equipment which breaks down can be searched for, a communicating valve on a communicating pipeline between second pipelines of the two sets of heat exchange modules is opened, the two sets of main equipment which does not break down are spliced into a set of complete heat exchange modules to be temporarily used, and the broken-down cooling tower or the broken-down circulating pump can be overhauled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 shows a schematic view of a liquid cooling system of the present invention;
FIG. 2 shows an enlarged view of section A of FIG. 1;
FIG. 3 shows an enlarged view of section B of FIG. 1;
FIG. 4 shows a schematic view of a heat exchange module of the present invention;
FIG. 5 shows a schematic of a first water replenishing module of the present invention;
FIG. 6 illustrates a schematic view of a second refill module of the present invention.
Description of reference numerals:
1. a heat exchange module; 101. a cooling tower; 102. a circulation pump; 103. a first pipeline; 104. a second pipeline; 105. a third pipeline; 106. a sewage degassing device; 107. a fourth pipeline; 108. a first on-off valve; 109. a pressure measuring structure; 110. a fifth pipeline; 111. a first valve block; 112. a sixth pipeline; 113. a second valve block; 2. a liquid cooling heat exchange unit; 3. a communicating pipeline; 4. a communication valve; 5. a first water replenishing module; 501. a solution tank; 502. a constant pressure water replenishing device; 503. a first water replenishing pipeline; 6. a pressure relief pipeline; 7. a pressure relief valve; 8. a water supply loop; 9. a water return loop; 10. a second water replenishing module; 1001. a water replenishing tank; 1002. a water replenishing pump; 1003. a water softening device; 11. a seventh pipeline; 12. and an eighth pipeline.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 to 6, this embodiment provides a liquid cooling system, including at least two sets of heat exchange modules 1, a communication pipeline 3 and a communication valve 4 that are arranged in parallel, where each set of heat exchange module 1 includes a cooling tower 101 and a circulation pump 102, a liquid outlet of the cooling tower 101 is communicated with a cold water pipeline of at least one liquid cooling heat exchange unit 2 through a first pipeline 103, a liquid inlet of the cooling tower 101 is communicated with a liquid outlet of the circulation pump 102 through a second pipeline 104, and a liquid inlet of the circulation pump 102 is communicated with a hot water pipeline of at least one liquid cooling heat exchange unit 2 through a third pipeline 105; one communication pipeline 3 is communicated between the second pipelines 104 of every two sets of heat exchange modules 1; the communicating valves 4 are arranged on the communicating pipelines 3, and each communicating pipeline 3 is provided with the communicating valve 4. The liquid cooling system of this embodiment is applicable to the heat transfer cooling of electronic equipment such as server and data center etc..
When the cooling tower 101 and/or the circulating pump 102 of one set of heat exchange module 1 fails, other heat exchange modules 1 can be started to perform heat dissipation work, and the failed cooling tower 101 and/or the failed circulating pump 102 can be overhauled. When one of the cooling tower 101 or the circulating pump 102 of each set of heat exchange module 1 has a fault, two sets of heat exchange modules 1 with different main equipment having the fault can be searched for, the communicating valve 4 on the communicating pipeline 3 between the second pipelines 104 of the two sets of heat exchange modules 1 is opened, the main equipment which does not have the fault of the two sets of heat exchange modules 1 is spliced into a set of complete heat exchange modules 1 to be temporarily used, and the cooling tower 101 or the circulating pump 102 having the fault can be overhauled.
Fig. 1 shows a specific embodiment of a liquid cooling system, which includes two sets of heat exchange modules 1 connected in parallel, each set of heat exchange module 1 includes a cooling tower 101 and a circulation pump 102, a liquid outlet of the cooling tower 101 is communicated with a cold water pipeline of at least one liquid cooling heat exchange unit 2 through a first pipeline 103, a liquid inlet of the cooling tower 101 is communicated with a liquid outlet of the circulation pump 102 through a second pipeline 104, and a liquid inlet of the circulation pump 102 is communicated with a hot water pipeline of at least one liquid cooling heat exchange unit 2 through a third pipeline 105; two ends of the communication pipeline 3 are respectively communicated with the second pipelines 104 of the two sets of heat exchange modules 1, and the communication valve 4 is arranged on the communication pipeline 3.
When the cooling tower 101 and/or the circulating pump 102 of one set of heat exchange module 1 fails, other heat exchange modules 1 can be started to perform heat dissipation work, and the failed cooling tower 101 and/or the failed circulating pump 102 can be overhauled. When the cooling tower 101 or the circulating pump 102 of one set of heat exchange module 1 fails and the circulating pump 102 of the other set of heat exchange module 1 fails, the communicating valve 4 is opened, and the two sets of heat exchange modules 1 are spliced into one set for use.
Specifically, the liquid-cooled heat exchange unit 2 may be a CDU. In the liquid cooling system in this embodiment, the liquid cooling heat exchange units 2 may have two sets, or may have three or more sets, and generally, a server is provided with a set of liquid cooling heat exchange units 2. In this embodiment, the liquid cooling system further includes a variable frequency fan, and the variable frequency fan introduces heat of the server side into the heat exchange module 1 after exchanging heat with the liquid cooling heat exchange unit 2 through a pipeline, and radiates out through the cooling tower 101. The cooling tower 101 is a closed cooling tower 101, the cooling tower 101 adopts a large temperature difference flow design, the liquid inlet temperature is 45 ℃, the liquid outlet temperature is 35 ℃, the temperature difference is 10 ℃, compared with the 5 ℃ temperature difference of the traditional cooling tower 101, the system flow and the specification of matched equipment can be reduced, the power of a circulating pump 102 is reduced, and natural cooling is utilized to the maximum extent. The circulating pump 102 can be a variable frequency centrifugal pump, the flow of the heat exchange module 1 can be adjusted in winter according to the load change of the server side, and the lowest rotating speed of the circulating pump 102 is 30 Hz. The communication valve 4 may be an electrically adjustable valve. Specifically, a regulating valve and a butterfly valve are arranged at a liquid outlet of the cooling tower 101; a butterfly valve is arranged at the liquid inlet.
In this embodiment, each set of heat exchange module 1 further includes a blowdown degassing device 106, the blowdown degassing device 106 is disposed on the third pipeline 105, a liquid inlet of the blowdown degassing device 106 is communicated with a hot water pipeline of at least one of the liquid-cooled heat exchange units 2 through an upstream branch of the third pipeline 105, and a liquid outlet of the blowdown degassing device 106 is communicated with a liquid inlet of the circulation pump 102 through a downstream branch of the third pipeline 105. The pollution discharge degassing device 106 can rapidly remove the gas in the third pipeline 105 and discharge the gas from the top of the pollution discharge degassing device 106, and can also filter impurities in the third pipeline 105, keep the cleanness and stability of the liquid cooling system, and prevent the impurities from blocking or damaging the liquid cooling system. In a preferred embodiment, the blowdown degasser 106 is a cyclonic blowdown degasser 106.
In this embodiment, each set of the heat exchange module 1 further includes a fourth pipeline 107 and a first switch valve 108, one end of the fourth pipeline 107 is communicated with the upstream branch, and the other end is communicated with the downstream branch; a first on-off valve 108 is provided on the fourth line 107. The first on-off valve 108 is in a normally closed state, and the first on-off valve 108 is adapted to be opened when the waste degasser 106 is damaged, so as to ensure that the heat exchange module 1 can normally operate. In a preferred embodiment, the first on-off valve 108 is a butterfly valve.
In this embodiment, each set of the heat exchange module 1 further includes a pressure measuring structure 109, a fifth pipeline 110, and a first valve bank 111; the pressure measuring structure 109 is arranged at the liquid inlet of the circulating pump 102 and/or the liquid outlet of the circulating pump 102; one end of a fifth pipeline 110 is communicated with the upstream branch, and the other end is communicated with the second pipeline 104; a first valve block 111 is disposed on the fifth pipeline 110, and an open/close state of the first valve block 111 is adjusted according to a pressure measurement result of the pressure measurement structure 109.
When the pressure measurement structure 109 detects a high pressure, the first valve set 111 is opened, and the waste degasser 106 and the circulation pump 102 form a loop, averaging the pressure across the circulation pump 102. When the pressure is at a normal level, the first valve block 111 is in a normally closed state.
In one embodiment, the first valve set 111 includes a regulating valve and butterfly valves connected to both sides of the regulating valve. The pressure measuring structure 109 is a pressure gauge, and when a pressure meter is arranged on only one side of the circulating pump 102, the pressure measuring result can be compared with the set pressure; when the pressure timing is set on both sides of the circulation pump 102, the pressure measurement result can be compared with the set pressure, and as long as one pressure measurement result is not satisfactory, the first valve set 111 can be opened, and the pressure values of the two pressure gauges can also be compared. The opening degree of the regulating valve in the first valve group 111 can be controlled according to the pressure measuring result, so that the pressure can be accurately regulated.
The liquid cooling system of this embodiment further includes a first water replenishing module 5, where the first water replenishing module 5 includes a solution tank 501, a constant-pressure water replenishing device 502, and a first water replenishing pipeline 503, and the constant-pressure water replenishing device 502 is communicated with a liquid outlet of the solution tank 501; the first water replenishing pipeline 503 is communicated with the liquid outlet of the constant pressure water replenishing device 502 and the upstream branch of each set of the heat exchange module 1. The first water replenishing module 5 is used for performing constant-pressure liquid replenishing on an upstream branch of the third pipeline 105. In a specific embodiment, the solution tank 501 contains a glycol solution, the solution tank 501 is provided with a liquid outlet, an overflow port, a water drain port, a liquid level detection structure and the like, the first water replenishing module 5 further comprises a recovery container, and the overflow port is communicated with the recovery container through an overflow pipe; the drain outlet is arranged at the bottom of the solution tank 501 and is communicated with the recovery container; the liquid outlet is also arranged at the bottom of the solution tank 501, so that liquid can be conveniently discharged. The water outlet and the liquid outlet are both provided with switch valves.
The liquid cooling system of this embodiment further includes a pressure relief pipeline 6 and a pressure relief valve 7, where the pressure relief pipeline 6 is communicated with the second pipeline 104 of each set of the heat exchange module 1 and is communicated with the solution tank 501; the pressure release valve 7 is arranged on the pressure release pipeline 6, and each set of the heat exchange module 1 is provided with one pressure release valve 7. When the detection result of the pressure measuring structure 109 indicates that the pressure is large and the pressure cannot be reduced by opening the first valve group 111, the pressure relief valve 7 may be opened, and a part of the liquid may be discharged to the solution tank 501 through the pressure relief pipeline 6.
In this embodiment, each set of the heat exchange module 1 further includes a temperature measurement structure, a sixth pipeline 112 and a second valve group 113, where the temperature measurement structure is disposed on the first pipeline 103 and located at a liquid outlet close to the cooling tower 101; one end of a sixth pipeline 112 is communicated with the first pipeline 103, and the other end is communicated with the second pipeline 104; the second valve set 113 is disposed on the sixth pipeline 112, and the open/close state of the second valve set 113 is adjusted according to the temperature measurement result of the temperature measurement structure.
When the temperature measuring structure detects that the outlet liquid temperature of the cooling tower 101 is low, the second valve set 113 is opened, the liquid outlet of the circulating pump 102 is communicated with both the first pipeline 103 and the second pipeline 104, and the hotter liquid part at the circulating pump 102 enters the first pipeline 103 through the sixth pipeline 112 and is mixed with the liquid in the first pipeline 103, so that the temperature of the liquid in the first pipeline 103 is raised. When the cooling tower 101 spray pump stops operating, the cooling tower 101 fan is reduced to the minimum frequency, and the cooling tower 101 liquid outlet temperature is lower, the cooling tower 101 fan can be closed to control the temperature first, and when the cooling tower 101 fans stop and the liquid outlet temperature still meets the bottom, the temperature is controlled by the second valve group 113 and the first valve group 111.
In one embodiment, the second valve set 113 includes a regulating valve and butterfly valves connected to both sides of the regulating valve.
In the liquid cooling system of this embodiment, the system further includes a water supply loop 8 and a water return loop 9, and the first pipeline 103 is communicated with the water supply loop 8 and is communicated with a cold water pipeline of at least one liquid cooling heat exchange unit 2 through the water supply loop 8; the third pipeline 105 is communicated with the water return loop 9 and communicated with a hot water pipeline of at least one liquid cooling heat exchange unit 2 through the water return loop 9. The water supply loop 8 and the water return loop 9 can connect a plurality of sets of heat exchange modules 1 in parallel and realize the communication with a plurality of liquid cooling heat exchange units 2.
In the liquid cooling system of this embodiment, still include second moisturizing module 10, second moisturizing module 10 includes moisturizing case 1001 and moisturizing pump 1002, moisturizing pump 1002 through seventh pipeline 11 with moisturizing case 1001 communicates, through eighth pipeline 12 and every the moisturizing mouth of cooling tower 101 all communicates. The second water replenishing module 10 is used for replenishing water for spraying water of the cooling tower 101. The cooling tower 101 is guaranteed to have enough spraying water volume for heat exchange and cooling, and the water replenishing tank 1001 can be communicated with two water sources, namely tap water and an emergency water source.
In this embodiment, the second water replenishing module 10 further includes a water softening device 1003, a water outlet of the water softening device 1003 is communicated with the water replenishing tank 1001, and a water inlet of the water softening device 1003 is communicated with a water source.
External water softens water through water softener 1003, then the soft water from water softener 1003 output gets into moisturizing case 1001, then get into corresponding cooling tower 101's water-collecting tray under the effect of moisturizing pump 1002, the soft water divide into two the tunnel before getting into cooling tower 101 water-collecting tray, be the ball-cock assembly moisturizing all the way, through the ball-cock assembly in the cooling tower 101, for cooling tower 101 moisturizing according to the liquid level change, be the liquid level moisturizing all the way, according to the level sensor who sets up in the cooling tower 101, carry out the moisturizing for cooling tower 101. The softened water can prolong the service life of the cooling tower 101 and avoid the damage of calcium and magnesium ions in the raw water to the heat exchange core body.
In this embodiment, the cooling tower further includes a drainage main pipe, and the drainage main pipe is respectively communicated with drainage openings in the cooling tower 101.
Specifically, the liquid cooling system is started in the sequence that the liquid cooling heat exchange unit 2 to be started is selected, the circulating pump 102 of the heat exchange module 1 is started, and the corresponding cooling tower 101 is started. The shutdown sequence of the liquid cooling system is as follows: and selecting the liquid-cooled heat exchange unit 2 to be closed, closing the cooling tower 101 and closing the corresponding circulating pump 102.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A liquid cooling system, comprising:
the heat exchange system comprises at least two sets of heat exchange modules (1) which are arranged in parallel, wherein each set of heat exchange module (1) comprises a cooling tower (101) and a circulating pump (102), a liquid outlet of the cooling tower (101) is communicated with a cold water pipeline of at least one liquid cooling heat exchange unit (2) through a first pipeline (103), a liquid inlet of the cooling tower (101) is communicated with a liquid outlet of the circulating pump (102) through a second pipeline (104), and a liquid inlet of the circulating pump (102) is communicated with a hot water pipeline of at least one liquid cooling heat exchange unit (2) through a third pipeline (105);
the second pipelines (104) of every two sets of heat exchange modules (1) are communicated with one communication pipeline (3);
and the communication valves (4) are arranged on the communication pipelines (3), and each communication pipeline (3) is provided with the communication valve (4).
2. The liquid cooling system of claim 1, wherein each set of heat exchange modules (1) further comprises a blowdown degasser (106), the blowdown degasser (106) is disposed on the third pipeline (105), a liquid inlet of the blowdown degasser (106) is communicated with a hot water pipeline of at least one of the liquid-cooled heat exchange units (2) through an upstream branch of the third pipeline (105), and a liquid outlet of the blowdown degasser (106) is communicated with a liquid inlet of the circulation pump (102) through a downstream branch of the third pipeline (105).
3. The liquid cooling system of claim 2, wherein each set of heat exchange modules (1) further comprises:
a fourth conduit (107) having one end communicating with the upstream branch and the other end communicating with the downstream branch;
a first on-off valve (108) provided on the fourth line (107).
4. The liquid cooling system of claim 2, wherein each set of heat exchange modules (1) further comprises:
the pressure measuring structure (109) is arranged at an inlet of the circulating pump (102) and/or an outlet of the circulating pump (102);
a fifth pipeline (110) having one end communicating with the upstream branch and the other end communicating with the second pipeline (104);
and the first valve group (111) is arranged on the fifth pipeline (110), and the opening and closing state of the first valve group (111) is adjusted according to the pressure measurement result of the pressure measurement structure (109).
5. The liquid cooling system of claim 4, further comprising a first refill module (5), the first refill module (5) comprising:
a solution tank (501);
the constant-pressure water supplementing device (502) is communicated with a liquid outlet of the solution tank (501);
and the first water replenishing pipeline (503) is communicated with a liquid outlet of the constant-pressure water replenishing device (502) and the upstream branch of each set of heat exchange module (1).
6. The liquid cooling system of claim 5, further comprising:
the pressure relief pipeline (6) is communicated with the second pipeline (104) of each set of heat exchange module (1) and is communicated with the solution tank (501);
and the pressure release valve (7) is arranged on the pressure release pipeline (6), and each set of heat exchange module (1) is provided with one pressure release valve (7).
7. The liquid cooling system according to any one of claims 1-6, wherein each set of said heat exchanging modules (1) further comprises:
the temperature measuring structure is arranged on the first pipeline (103) and is positioned at a liquid outlet close to the cooling tower (101);
a sixth pipeline (112) having one end communicating with the first pipeline (103) and the other end communicating with the second pipeline (104);
and the second valve bank (113) is arranged on the sixth pipeline (112), and the opening and closing state of the second valve bank (113) is adjusted according to the temperature measurement result of the temperature measurement structure.
8. The liquid cooling system of any of claims 1-6, further comprising:
the first pipeline (103) is communicated with the water supply loop (8) and is communicated with a cold water pipeline of at least one liquid-cooling heat exchange unit (2) through the water supply loop (8);
and the third pipeline (105) is communicated with the water return loop (9) and is communicated with a hot water pipeline of at least one liquid cooling heat exchange unit (2) through the water return loop (9).
9. The liquid cooling system of any of claims 1-6, further comprising a second refill module (10), the second refill module (10) comprising:
a water replenishment tank (1001);
and the water replenishing pump (1002) is communicated with the water replenishing tank (1001) through a seventh pipeline (11) and is communicated with a water replenishing port of each cooling tower (101) through an eighth pipeline (12).
10. The liquid cooling system of claim 9, wherein the second water replenishment module (10) further comprises a water softening device (1003), a water outlet of the water softening device (1003) is communicated with the water replenishment tank (1001), and a water inlet of the water softening device (1003) is communicated with a water source.
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| CN116315304A (en) * | 2023-02-21 | 2023-06-23 | 珠海科创储能科技有限公司 | Flow-equalizing and pressure-regulating method for multi-stage liquid cooling pipeline |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210725802U (en) * | 2019-08-07 | 2020-06-09 | 世源科技工程有限公司 | Data center submergence formula liquid cooling system |
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| CN210725802U (en) * | 2019-08-07 | 2020-06-09 | 世源科技工程有限公司 | Data center submergence formula liquid cooling system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116315304A (en) * | 2023-02-21 | 2023-06-23 | 珠海科创储能科技有限公司 | Flow-equalizing and pressure-regulating method for multi-stage liquid cooling pipeline |
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