CN114449857B - liquid cooling system - Google Patents
liquid cooling system Download PDFInfo
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- CN114449857B CN114449857B CN202210106802.5A CN202210106802A CN114449857B CN 114449857 B CN114449857 B CN 114449857B CN 202210106802 A CN202210106802 A CN 202210106802A CN 114449857 B CN114449857 B CN 114449857B
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- liquid
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- 239000007788 liquid Substances 0.000 title claims abstract description 143
- 238000001816 cooling Methods 0.000 title claims abstract description 141
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 122
- 238000004891 communication Methods 0.000 claims abstract description 51
- 230000001502 supplementing effect Effects 0.000 claims description 43
- 238000007872 degassing Methods 0.000 claims description 17
- 238000011144 upstream manufacturing Methods 0.000 claims description 13
- 238000009530 blood pressure measurement Methods 0.000 claims description 10
- 238000009529 body temperature measurement Methods 0.000 claims description 8
- 230000017525 heat dissipation Effects 0.000 abstract description 10
- 239000010865 sewage Substances 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 7
- 230000003020 moisturizing effect Effects 0.000 description 6
- 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
- 238000010586 diagram 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
- 239000007921 spray Substances 0.000 description 2
- 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
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment 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
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- 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, communication pipelines and communication valves which are arranged in parallel, wherein each set of heat exchange modules 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 every two sets of second pipelines of the heat exchange module; the communication valves are arranged on the communication pipelines, and each communication pipeline is provided with the communication 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 heat dissipation capacity of a server and the heat dissipation density of a machine room are increased, and the heat dissipation mode of a precise air conditioner which partially depends on electric power is gradually replaced by a novel refrigeration mode. With the rapid development of mobile data, cloud computing and big data service, the construction scale of a data center is larger and larger, the density of a single cabinet is increased, the heating value of a server device chip is also increased continuously, the traditional air cooling mode has large power consumption and cannot meet the heat dissipation requirement of IT equipment, and the energy saving requirement of the data center is also highlighted gradually. Therefore, the use of the liquid cooling system to dissipate heat of the server becomes a direction of technical development, the liquid cooling system is required to carry heat out and dissipate the heat outdoors in the heat dissipation process, natural cold sources are utilized to the maximum extent, and the energy conservation and reliability of the system are improved.
With the advent of the big data age, the scale of data centers is larger and larger, the number of servers is also greatly increased, more servers need to dissipate heat through a liquid cooling system, but when main equipment of the liquid cooling system is damaged, the liquid cooling system cannot reliably operate.
Disclosure of Invention
Therefore, the invention aims to overcome the defect that the liquid cooling system cannot reliably operate 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, communication pipelines and communication valves, wherein the heat exchange modules are arranged in parallel, each set of heat exchange modules 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 every two sets of second pipelines of the heat exchange module; the communication valves are arranged on the communication pipelines, and each communication pipeline is provided with the communication valve.
The liquid cooling system provided by the invention further comprises a sewage draining and degassing device, wherein the sewage draining and degassing device is arranged on the third pipeline, a liquid inlet of the sewage draining and 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 draining and degassing device is communicated with a liquid inlet of the circulating pump through a downstream branch of the third pipeline.
The liquid cooling system provided by the invention, each set of 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 switch valve is arranged on the fourth pipeline.
The liquid cooling system provided by the invention, each set of 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;
a fifth pipeline, one end of which is communicated with the upstream branch and the other end of which is communicated with the second pipeline;
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 further comprises a first water supplementing module, wherein the first water supplementing module comprises:
a solution tank;
the constant-pressure water supplementing device is communicated with a liquid outlet of the solution tank;
the first water supplementing pipeline is communicated with a liquid outlet of the constant-pressure water supplementing device and the upstream branch of each set of heat exchange module.
The liquid cooling system provided by the invention further 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;
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.
The liquid cooling system provided by the invention, each set of heat exchange module further comprises:
the temperature measuring structure is arranged on the first pipeline and is positioned close to the liquid outlet of the cooling tower;
a sixth pipeline, one end of which is communicated with the first pipeline, and the other end of which is communicated with the second pipeline;
the second valve group is arranged on the sixth pipeline, and the opening and closing states of the second valve group are adjusted according to the temperature measurement result of the temperature measurement structure.
The liquid cooling system provided by the invention further 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 backwater loop and is communicated with the hot water pipeline of at least one liquid cooling heat exchange unit through the backwater loop.
The liquid cooling system provided by the invention further comprises a second water supplementing module, wherein the second water supplementing module comprises:
a water supplementing tank;
and the water supplementing pump is communicated with the water supplementing tank through a seventh pipeline and is communicated with the water supplementing port of each cooling tower through an eighth pipeline.
The liquid cooling system provided by the invention is characterized in that the second water supplementing module further comprises a water softening device, a water outlet of the water softening device is communicated with the water supplementing 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, communication pipelines and communication valves which are arranged in parallel, wherein each set of heat exchange modules 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 every two sets of second pipelines of the heat exchange module; the communication valves are arranged on the communication pipelines, and each communication pipeline is provided with the communication valve.
When the cooling tower and/or the circulating pump of one set of heat exchange module fail, other heat exchange modules can be started to execute heat dissipation work, and the failed cooling tower and/or circulating pump can be overhauled. When the cooling tower or the circulating pump of each set of heat exchange module has one failure, two sets of heat exchange modules with different main equipment can be searched, a communication valve on a communication pipeline between second pipelines of the two sets of heat exchange modules is opened, the main equipment with no failure of the two sets of heat exchange modules is spliced into a complete set of heat exchange modules for temporary use, and the failed cooling tower or 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 that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a schematic diagram of a liquid cooling system of the present invention;
FIG. 2 shows an enlarged view of portion A of FIG. 1;
FIG. 3 shows an enlarged view of portion B of FIG. 1;
FIG. 4 shows a schematic view of a heat exchange module of the present invention;
FIG. 5 shows a schematic view of a first water refill module of the present invention;
fig. 6 shows a schematic diagram of a second water replenishment module of the present invention.
Reference numerals illustrate:
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 discharge and degasification device; 107. a fourth pipeline; 108. a first switching 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 communication pipeline; 4. a communication valve; 5. the first water supplementing module; 501. a solution tank; 502. a constant pressure water supplementing device; 503. a first water supplementing pipeline; 6. a pressure relief pipeline; 7. a pressure release valve; 8. a water supply loop; 9. a backwater loop; 10. the second water supplementing module; 1001. a water supplementing tank; 1002. a water supplementing pump; 1003. a water softening device; 11. a seventh pipeline; 12. and an eighth pipeline.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific 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 explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1 to 6, the present embodiment provides a liquid cooling system, which includes at least two sets of heat exchange modules 1, a communication pipeline 3 and a communication valve 4 that are arranged in parallel, each set of heat exchange modules 1 includes 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; one communication pipeline 3 is communicated between every two sets of second pipelines 104 of the heat exchange module 1; the communication valves 4 are arranged on the communication pipelines 3, and each communication pipeline 3 is provided with a communication valve 4. The liquid cooling system of the embodiment is suitable for heat exchange and cooling of electronic equipment such as a server and the like and a data center and the like.
When the cooling tower 101 and/or the circulating pump 102 of one set of heat exchange modules 1 fail, other heat exchange modules 1 can be started to perform heat dissipation work, and the failed cooling tower 101 and/or circulating pump 102 can be overhauled. When one cooling tower 101 or circulating pump 102 of each set of heat exchange module 1 fails, two sets of heat exchange modules 1 with different main equipment can be searched, a communication valve 4 on a communication pipeline 3 between second pipelines 104 of the two sets of heat exchange modules 1 is opened, the main equipment with no failure of the two sets of heat exchange modules 1 is spliced into a complete set of heat exchange modules 1 for temporary use, and the failed cooling tower 101 or circulating pump 102 can be overhauled.
As shown in fig. 1, a specific implementation manner of a liquid cooling system is shown, and the liquid cooling system comprises two sets of heat exchange modules 1 arranged in parallel, each set of heat exchange modules 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; 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 modules 1 fail, other heat exchange modules 1 can be started to perform heat dissipation work, and the failed cooling tower 101 and/or circulating pump 102 can be overhauled. When the cooling tower 101 or the circulating pump 102 of one set of heat exchange modules 1 fails and the circulating pump 102 of the other set of heat exchange modules 1 fails, the communication 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 of the present embodiment, the liquid cooling heat exchanging units 2 may have two groups, or may have three or more groups, and in general, one group of liquid cooling heat exchanging units 2 is provided in one server. In this embodiment, the liquid cooling system further includes a variable frequency fan, and the variable frequency fan exchanges heat with the liquid cooling heat exchange unit 2 through a pipeline and then introduces the heat exchange module 1, and the heat is dissipated 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 temperature of a liquid inlet is 45 ℃, the temperature of a liquid outlet is 35 ℃, and the temperature difference is 10 ℃, and compared with the temperature difference of 5 ℃ of the traditional cooling tower 101, the cooling tower can reduce the system flow and the specification of matched equipment, reduce the power of the circulating pump 102 and furthest utilize natural cooling. The circulating pump 102 can be a variable frequency centrifugal pump, the flow of the heat exchange module 1 can be regulated in winter according to the load change of the server side, and the minimum rotating speed of the circulating pump 102 is 30Hz. The communication valve 4 may be an electrically operated valve. Specifically, a liquid outlet of the cooling tower 101 is provided with a regulating valve and a butterfly valve; the liquid inlet is provided with a butterfly valve.
In this embodiment, each set of heat exchange module 1 further includes a blowdown degassing device 106, where the blowdown degassing device 106 is disposed on the third pipeline 105, a liquid inlet of the blowdown degassing device 106 is communicated with at least one hot water pipeline of the liquid cooling heat exchange unit 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 sewage degassing device 106 can rapidly remove the gas in the third pipeline 105 and discharge the gas from the top of the sewage degassing device 106, and also can filter the impurities in the third pipeline 105, so as to keep the liquid cooling system clean and stable and prevent the impurities from blocking or damaging the liquid cooling system. In a preferred embodiment, blowdown degasser 106 is a cyclonic blowdown degasser 106.
In this embodiment, each set of heat exchange modules 1 further includes a fourth pipeline 107 and a first switch valve 108, where 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 switch valve 108 is in a normally closed state, and the first switch valve 108 is suitable for being opened when the pollution discharge and degassing device 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 heat exchange modules 1 further includes a pressure measuring structure 109, a fifth pipeline 110, and a first valve group 111; the pressure measuring structure 109 is arranged at the liquid inlet of the circulating pump 102 and/or at 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 that the pressure is high, the first valve group 111 is opened, the sewage degassing device 106 and the circulating pump 102 form a loop, and the pressure on both sides of the circulating pump 102 is averaged. When the pressure is at a normal level, the first valve group 111 is in a normally closed state.
In one embodiment, the first valve group 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 the pressure gauge is arranged on one side of the circulating pump 102, the pressure measuring result can be compared with the set pressure; when pressure gauges are arranged on both sides of the circulating pump 102, the pressure measurement result can be compared with the set pressure, and as long as one pressure measurement result does not meet the requirement, the first valve group 111 can be opened, and the pressure values of the two pressure gauges can be compared. The opening degree of the regulating valve in the first valve group 111 can be controlled according to the pressure measurement result so as to accurately regulate the pressure.
The liquid cooling system of the embodiment further includes a first water supplementing module 5, where the first water supplementing module 5 includes a solution tank 501, a constant pressure water supplementing device 502, and a first water supplementing pipeline 503, and the constant pressure water supplementing device 502 is communicated with a liquid outlet of the solution tank 501; the first water supplementing pipeline 503 is communicated with the liquid outlet of the constant pressure water supplementing device 502 and the upstream branch of each set of heat exchange module 1. The first water supplementing module 5 is used for carrying out constant pressure fluid supplementing on an upstream branch of the third pipeline 105. In a specific embodiment, the solution tank 501 contains glycol solution, and 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, and the first water supplementing module 5 further comprises a recovery container, and the overflow port is communicated with the recovery container through an overflow pipe; the water drain port 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 discharged conveniently. The water discharge port and the liquid outlet are both provided with switch valves.
The liquid cooling system of the 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 heat exchange module 1 is provided with one pressure release valve 7. When the detection result of the pressure measuring structure 109 shows that the pressure is large and the pressure cannot be reduced by opening the first valve group 111, the pressure release valve 7 can be opened, and part of the liquid is discharged to the solution tank 501 through the pressure release pipeline 6.
In this embodiment, each set of heat exchange modules 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 is located near the liquid outlet of 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 group 113 is disposed on the sixth pipeline 112, and an open/close state of the second valve group 113 is adjusted according to a temperature measurement result of the temperature measurement structure.
When the temperature measuring structure detects that the liquid outlet temperature of the cooling tower 101 is lower, the second valve group 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 increased. When the spray pump of the cooling tower 101 stops running, the fan of the cooling tower 101 is reduced to the minimum frequency, and the temperature of the discharged liquid of the cooling tower 101 is lower, the fan of the cooling tower 101 can be firstly closed to control the temperature, and when the fans of the cooling tower 101 are stopped and the temperature of the discharged liquid is still at the bottom, the temperature is controlled through the second valve group 113 and the first valve group 111.
In one embodiment, the second valve group 113 includes a regulating valve, and butterfly valves connected to both sides of the regulating valve.
The liquid cooling system of the embodiment further comprises a water supply loop 8 and a water return loop 9, wherein 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 backwater loop 9 and is communicated with the hot water pipeline of at least one liquid cooling heat exchange unit 2 through the backwater loop 9. The water supply loop 8 and the water return loop 9 can connect the sets of heat exchange modules 1 in parallel and realize the communication with the plurality of liquid cooling heat exchange units 2.
In the liquid cooling system of this embodiment, the liquid cooling system further includes a second water supplementing module 10, where the second water supplementing module 10 includes a water supplementing tank 1001 and a water supplementing pump 1002, and the water supplementing pump 1002 is communicated with the water supplementing tank 1001 through a seventh pipeline 11, and is communicated with a water supplementing port of each cooling tower 101 through an eighth pipeline 12. The second water replenishing module 10 is water replenishing of the shower water of the cooling tower 101. The cooling tower 101 is ensured to have enough spray water quantity for heat exchange and cooling, and the water supplementing tank 1001 can be communicated with tap water and an emergency water source.
In this embodiment, the second water replenishing module 10 further includes a water softener 1003, a water outlet of the water softener 1003 is communicated with the water replenishing tank 1001, and a water inlet of the water softener 1003 is communicated with a water source.
The outside comes water and softens water through the water softener 1003, then the soft water that follows the output of water softener 1003 gets into moisturizing tank 1001, then gets into the catchment dish of corresponding cooling tower 101 under the effect of moisturizing pump 1002, and the soft water is divided into two ways before getting into the catchment dish of cooling tower 101, and one way is the ball-cock assembly moisturizing, changes into cooling tower 101 moisturizing according to the liquid level through the ball-cock assembly in the cooling tower 101, and one way is the liquid level moisturizing, carries out the moisturizing for cooling tower 101 according to the liquid level sensor that sets up in the cooling tower 101. The softened water can improve the service life of the cooling tower 101 and avoid the damage of calcium and magnesium ions in raw water to the heat exchange core.
In this embodiment, a water drain header is further included, and the water drain header is respectively communicated with water drain ports in the cooling tower 101.
Specifically, the liquid cooling system is started in a 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: the liquid cooling heat exchange unit 2 to be closed is selected, the cooling tower 101 is closed, and the corresponding circulating pump 102 is closed.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (7)
1. A liquid cooling system, comprising:
at least two sets of heat exchange modules (1) are arranged in parallel, each set of heat exchange modules (1) comprises a cooling tower (101) and a circulating pump (102), a liquid outlet of the cooling towers (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 towers (101) is communicated with a liquid outlet of the circulating pumps (102) through a second pipeline (104), and a liquid inlet of the circulating pumps (102) is communicated with a hot water pipeline of at least one liquid cooling heat exchange unit (2) through a third pipeline (105);
the communication pipelines (3) are communicated with one communication pipeline (3) between every two sets of second pipelines (104) of the heat exchange module (1);
the communication valves (4) are arranged on the communication pipelines (3), and each communication pipeline (3) is provided with a communication valve (4);
the variable frequency fan exchanges heat with the liquid cooling heat exchange unit (2) through a pipeline and then introduces the heat exchange heat into the heat exchange module (1) and dissipates the heat through the cooling tower (101);
each set of heat exchange module (1) further comprises a pollution discharge and degassing device (106), the pollution discharge and degassing device (106) is arranged on the third pipeline (105), a liquid inlet of the pollution discharge and degassing device (106) is communicated with at least one hot water pipeline of the liquid cooling heat exchange unit (2) through an upstream branch of the third pipeline (105), and a liquid outlet of the pollution discharge and degassing device (106) is communicated with a liquid inlet of the circulating pump (102) through a downstream branch of the third pipeline (105);
each set of heat exchange module (1) further comprises:
a fourth conduit (107) having one end in communication with the upstream branch and the other end in communication with the downstream branch;
a first switching valve (108) provided on the fourth pipe line (107);
each set of heat exchange module (1) further comprises:
the pressure measuring structure (109) is arranged at the liquid inlet of the circulating pump (102) and/or at the liquid outlet of the circulating pump (102);
a fifth conduit (110) having one end in communication with the upstream branch and the other end in communication with the second conduit (104);
and a first valve group (111) arranged on the fifth pipeline (110), wherein the opening and closing states of the first valve group (111) are adjusted according to the pressure measurement result of the pressure measurement structure (109).
2. The liquid cooling system according to claim 1, further comprising a first water replenishment module (5), the first water replenishment 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);
the first water supplementing pipeline (503) is communicated with a liquid outlet of the constant pressure water supplementing device (502) and the upstream branch of each set of heat exchange module (1).
3. The liquid cooling system according to claim 2, further comprising:
the pressure relief pipelines (6) are communicated with the second pipelines (104) of each set of heat exchange modules (1) and are communicated with the solution tank (501);
the pressure relief valves (7) are arranged on the pressure relief pipelines (6), and each set of heat exchange module (1) is provided with one pressure relief valve (7).
4. A liquid cooling system according to any one of claims 1-3, wherein each set of heat exchange modules (1) further comprises:
the temperature measuring structure is arranged on the first pipeline (103) and is positioned close to a liquid outlet of the cooling tower (101);
a sixth pipeline (112) with one end communicating with the first pipeline (103) and the other end communicating with the second pipeline (104);
and the second valve group (113) is arranged on the sixth pipeline (112), and the opening and closing states of the second valve group (113) are adjusted according to the temperature measurement result of the temperature measurement structure.
5. The liquid cooling system according to any one of claims 1 to 3, further comprising:
a water supply loop (8), wherein 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 backwater loop (9) and is communicated with the hot water pipeline of at least one liquid cooling heat exchange unit (2) through the backwater loop (9).
6. A liquid cooling system according to any one of claims 1-3, further comprising a second water replenishment module (10), the second water replenishment module (10) comprising:
a water replenishment tank (1001);
and the water supplementing pump (1002) is communicated with the water supplementing tank (1001) through a seventh pipeline (11), and is communicated with the water supplementing port of each cooling tower (101) through an eighth pipeline (12).
7. The liquid cooling system according to claim 6, wherein the second water replenishing module (10) further comprises a water softener (1003), a water outlet of the water softener (1003) is communicated with the water replenishing tank (1001), and a water inlet of the water softener (1003) is communicated with a water source.
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