CN119383908A - Liquid cooling distribution device and cabinet heat exchange device - Google Patents
Liquid cooling distribution device and cabinet heat exchange device Download PDFInfo
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- CN119383908A CN119383908A CN202411510828.1A CN202411510828A CN119383908A CN 119383908 A CN119383908 A CN 119383908A CN 202411510828 A CN202411510828 A CN 202411510828A CN 119383908 A CN119383908 A CN 119383908A
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- 239000007788 liquid Substances 0.000 title claims abstract description 201
- 238000001816 cooling Methods 0.000 title claims abstract description 84
- 230000001502 supplementing effect Effects 0.000 claims description 32
- 239000012530 fluid Substances 0.000 claims description 29
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 238000013461 design Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The invention provides a liquid cooling distribution device and a cabinet heat exchange device, wherein the liquid cooling distribution device comprises a heat exchanger, a first pump, a second pump, a secondary side liquid inlet, a secondary side liquid outlet, a primary side liquid inlet and a primary side liquid outlet, wherein the secondary side liquid inlet is communicated with one end of the first pump, the other end of the first pump is communicated with one end of a first heat exchange pipe section, the other end of the first heat exchange pipe section is communicated with the secondary side liquid outlet, a fourth pipeline is used for communicating one end of the second pump with the first pipeline, a fifth pipeline is used for communicating the other end of the second pump with the second pipeline, the primary side liquid inlet is communicated with one end of the second heat exchange pipe section, the other end of the second heat exchange pipe section is communicated with the primary side liquid outlet, and only one of the first pump and the second pump is opened, and the other one of the first pump and the second pump is in a standby state. According to the invention, the problem that the CDU water pump in the prior art has no redundancy, and if the CDU water pump is damaged, the system cannot normally operate, and the system reliability is low can be solved.
Description
Technical Field
The invention relates to the technical field of liquid cooling distribution units, in particular to a liquid cooling distribution device and a cabinet heat exchange device.
Background
With the rapid increase of artificial intelligence and high-performance computing demands, the power density of a single cabinet of a data center is higher and higher, the traditional air cooling cannot meet the cooling demands of server chips, and the liquid cooling becomes the necessary trend of high-performance server cooling.
The liquid cooling distribution unit CDU (Cooling Distribution Units) is a system that allows for smaller, more efficient, more accurate liquid cooling in rack-level data centers, typically integrated with utility water. The liquid cooling distribution unit CDU circulates a cooling liquid in a closed loop system in the secondary (cooling application) side rack and uses utility water on the primary (heat radiation) side. The liquid cooling distribution unit CDU has pumps, water tanks, power supplies, control boards and heat exchangers as key components, filters, flow meters, pressure sensors and valves, among other devices, for managing the operation of the cooling liquid cooling unit CDU with the server rack. In integration into a server rack, the coolant is distributed to a series of servers or heat sources. The CDU can manage the performance of the liquid cooling system, and the energy-saving data center can obtain the accurate and optimal cooling performance required by the system while eliminating the air cooling noise of the data center.
Because the CDU in the prior art has the technical problems that a water pump does not have redundancy, if the CDU is damaged, a system cannot normally operate, the reliability is low and the like, the invention designs the liquid cooling distribution device and the cabinet heat exchange device.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the CDU in the prior art has no redundancy of the water pump, and if the CDU is damaged, the system cannot normally operate and has low reliability, so that the liquid cooling distribution device and the cabinet heat exchange device are provided.
In order to solve the above problems, the present invention provides a liquid cooling distribution device, comprising:
The heat exchanger comprises a heat exchanger, a first pump, a second pump, a secondary side liquid inlet, a secondary side liquid outlet, a primary side liquid inlet, a primary side liquid outlet, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline, a sixth pipeline and a seventh pipeline, wherein a first heat exchange pipe section and a second heat exchange pipe section are arranged in the heat exchanger,
The secondary side liquid inlet is communicated with one end of the first pump through the first pipeline, the other end of the first pump is communicated with one end of the first heat exchange pipe section through the second pipeline, the other end of the first heat exchange pipe section is communicated with the secondary side liquid outlet through a third pipeline, the fourth pipeline is used for communicating one end of the second pump with the first pipeline, and the fifth pipeline is used for communicating the other end of the second pump with the second pipeline;
The primary side liquid inlet is communicated with one end of the second heat exchange tube section through the sixth pipeline, and the other end of the second heat exchange tube section is communicated to the primary side liquid outlet through the seventh pipeline;
The first heat exchange tube section exchanges heat with the second heat exchange tube section, and only one of the first pump and the second pump is opened, and the other is in a standby state.
In some embodiments of the present invention, in some embodiments,
The liquid supplementing device is characterized by further comprising a liquid supplementing box and a liquid supplementing pump, wherein the liquid supplementing box is communicated to the first pipeline through an eighth pipeline and is arranged on the first pipeline, and the liquid supplementing box is further communicated with a liquid outlet and a liquid supplementing port respectively.
In some embodiments of the present invention, in some embodiments,
The expansion tank is communicated to the first pipeline through the ninth pipeline.
In some embodiments of the present invention, in some embodiments,
The system further comprises a first one-way valve and a second one-way valve, wherein the first one-way valve is arranged on the second pipeline and can only allow fluid to flow from the first pump to the first heat exchange pipeline section, and the second one-way valve is arranged on the fifth pipeline and can only allow fluid to flow from the second pump to the first heat exchange pipeline section.
In some embodiments of the present invention, in some embodiments,
The liquid cooling distribution device comprises a first pipeline, a second pipeline, a third pipeline, a proportional valve, a liquid cooling distribution device and a proportional valve, wherein one end of the first pipeline is communicated with the first pipeline, the other end of the first pipeline is communicated with the third pipeline, the proportional valve is arranged on the tenth pipeline, the proportional valve can adjust the flow of fluid flowing from the third pipeline to the first pipeline, the opening of the proportional valve can be increased when the load of the liquid cooling distribution device is smaller than a first preset load, and the opening of the proportional valve can be decreased when the load of the liquid cooling distribution device is larger than a second preset load, and the first preset load is smaller than or equal to the second preset load.
In some embodiments of the present invention, in some embodiments,
The heat exchanger, the first pump and the second pump are arranged in the shell, and the secondary side liquid inlet, the secondary side liquid outlet, the primary side liquid inlet and the primary side liquid outlet are arranged outside the shell;
At least 2 fans are also included, wherein at least 1 fan is operated, and at least 1 fan is in a standby state.
In some embodiments of the present invention, in some embodiments,
The electric appliance box is positioned in the shell, and a controller is arranged in the electric appliance box;
At least 2 fans include a first fan and a second fan disposed at one side of the electrical box, and a third fan and a fourth fan disposed at the other side of the electrical box,
The first fans and the third fans form a first group of fan groups, the second fans and the fourth fans form a second group of fan groups, the first group of fan groups form a first air path for driving air flow, the second group of fan groups form a second air path for driving air flow, only one fan in the first group of fan groups is opened, the other fan in the first group of fan groups is in a standby state, only one fan in the second group of fan groups is opened, and the other fan in the second group of fan groups is in a standby state.
In some embodiments of the present invention, in some embodiments,
The shell comprises a front panel and a rear panel which are oppositely arranged, a first grille and a second grille are arranged on the front panel, a third grille is arranged on the rear panel, the first grille is oppositely arranged with the first fan, and the second grille is oppositely arranged with the second fan;
the first grille and the second grille are air inlet grilles, and the third grille is an air outlet grille;
The side-by-side working mode is that the first fan and the second fan are both operated while the third fan and the fourth fan are both in a standby state, or the third fan and the fourth fan are both operated while the first fan and the second fan are both in a standby state;
And the cross working mode is that the first fan and the fourth fan are operated and the second fan and the third fan are in a standby state, or the second fan and the third fan are operated and the first fan and the fourth fan are in a standby state.
In some embodiments of the present invention, in some embodiments,
The front panel is also provided with a display screen, a switch and a communication interface, and the first grille and the second grille are symmetrically arranged relative to the display screen;
The secondary side liquid inlet, the secondary side liquid outlet, the primary side liquid inlet and the primary side liquid outlet are all arranged on the rear panel, the secondary side liquid inlet and the secondary side liquid outlet are symmetrically arranged relative to the third grid, and the primary side liquid inlet and the primary side liquid outlet are symmetrically arranged relative to the third grid.
The invention also provides a cabinet heat exchange device which comprises the liquid cooling distribution device.
The liquid cooling distribution device and the cabinet heat exchange device provided by the invention have the following beneficial effects:
1. According to the invention, at least two pumps are respectively communicated with the heat exchange device, the secondary side liquid inlet and the secondary side liquid outlet, and only one of the two pumps is opened and the other is in a standby state, so that a backup redundancy design can be realized, and the other pump can still keep working when one pump is damaged or fails, thereby improving the operation reliability of the liquid cooling distribution device, prolonging the service life of the liquid cooling distribution device, and solving the problems that the CDU water pump in the prior art has no redundancy, if the system cannot normally operate due to damage, and the system reliability is low.
2. The invention also provides at least two fans, at least one of which runs and at least one of which is in a standby state, so that the fans also have a backup redundancy design, and one or a group of fans can still keep working when one or a group of fans are damaged or fail, thereby further improving the running reliability of the liquid cooling distribution device and further prolonging the service life of the liquid cooling distribution device; the first grid and the second grid are symmetrically arranged relative to the display screen, and the first fan and the second fan are respectively opposite to the first grid and the second grid, so that the two fans are symmetrically arranged relative to the display screen, and the overall aesthetic property of the liquid cooling distribution unit can be improved.
3. The invention can regulate the flow rate of the fluid flowing into the first pipeline from the third pipeline through the tenth pipeline arranged between the first pipeline and the third pipeline and the proportional valve arranged on the tenth pipeline, especially the opening of the proportional valve can be regulated to be large when the load of the liquid cooling distribution device is smaller than a first preset load, and the opening of the proportional valve can be regulated to be small when the load of the liquid cooling distribution device is larger than a second preset load, so that the fine control of the flow rate is realized, different loads are adapted, namely, more fluid can be bypassed through the proportional valve to return to the first pipeline when the heat exchange load of the liquid cooling distribution device is smaller, the flow rate of the heat exchange fluid is reduced, the waste of energy is reduced, and when the heat exchange load of the liquid cooling distribution device is larger, the smaller fluid is bypassed through the proportional valve, the flow rate of the heat exchange fluid is increased, and the flow rate of the heat exchange fluid which is output outwards is increased, so that the heat exchange requirement is met, the fine control of the flow rate is realized, the universality is improved, and the energy waste is reduced under the condition that the heat exchange requirement is met.
Drawings
FIG. 1a is a front perspective view of a liquid cooling distributor of the present invention;
FIG. 1b is a rear perspective view of a liquid cooling distributor of the present invention;
FIG. 2 is a system configuration diagram of a liquid cooling distribution apparatus according to the present invention;
fig. 3 is a diagram showing the internal structure of the liquid cooling distributor of the present invention.
The reference numerals are expressed as:
10. Front panel, 11, display screen, 12, switch, 13, communication interface, 14, first grille, 15, second grille, 50, third grille, 16, handle, 20, bottom shell, 30, top cover, 40, rear panel, 42, liquid outlet, 43, liquid supplementing port, 44, power supply connector, 46, secondary side liquid inlet, 47, primary side liquid outlet, 48, primary side liquid inlet, 49, secondary side liquid outlet, 51, first fan, 52, second fan, 53, third fan, 54, fourth fan, 55, electrical box, 56, controller, 60, liquid supplementing box, 70, liquid supplementing pump, 71, first pump, 72, second pump, 80, expansion tank, 90, proportional valve, 91, first one-way valve, 92, second one-way valve, 100, heat exchanger, 100a, first heat exchange tube section, 100b, second heat exchange tube section;
101. First pipeline, 102, second pipeline, 103, third pipeline, 104, fourth pipeline, 105, fifth pipeline, 106, sixth pipeline, 107, seventh pipeline, 108, eighth pipeline, 109, ninth pipeline, 110, tenth pipeline, 200 and shell.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. 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.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of the present invention, and the azimuth terms "inside and outside" refer to inside and outside with respect to the outline of each component itself.
Spatially relative terms, such as "above," "upper" and "upper surface," "above" and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the process is carried out, the exemplary term "above" may be included. Upper and lower. Two orientations below. The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
As shown in fig. 1a-3, the present invention provides a liquid-cooled distribution device comprising:
The heat exchanger 100, the first pump 71, the second pump 72, the secondary side liquid inlet 46, the secondary side liquid outlet 49, the primary side liquid inlet 48 and the primary side liquid outlet 47, and further comprises a first pipeline 101, a second pipeline 102, a third pipeline 103, a fourth pipeline 104, a fifth pipeline 105, a sixth pipeline 106 and a seventh pipeline 107, wherein the heat exchanger 100 is internally provided with a first heat exchange pipe section 100a and a second heat exchange pipe section 100b,
The secondary side liquid inlet 46 is communicated with one end of the first pump 71 through the first pipeline 101, the other end of the first pump 71 is communicated with one end of the first heat exchange pipe section 100a through the second pipeline 102, the other end of the first heat exchange pipe section 100a is communicated with the secondary side liquid outlet 49 through a third pipeline 103, the fourth pipeline 104 is used for communicating one end of the second pump 72 with the first pipeline 101, and the fifth pipeline 105 is used for communicating the other end of the second pump 72 with the second pipeline 102;
the primary side liquid inlet 48 is communicated with one end of the second heat exchange tube section 100b through the sixth pipeline 106, and the other end of the second heat exchange tube section 100b is communicated with the primary side liquid outlet 47 through the seventh pipeline 107;
the first heat exchange tube segment 100a exchanges heat with the second heat exchange tube segment 100b, and only one of the first pump 71 and the second pump 72 is turned on, while the other is in a standby state.
According to the invention, at least two pumps are respectively communicated with the heat exchange device, the secondary side liquid inlet and the secondary side liquid outlet, and only one of the two pumps is opened and the other is in a standby state, so that a backup redundancy design can be realized, and the other pump can still keep working when one pump is damaged or fails, thereby improving the operation reliability of the liquid cooling distribution device, prolonging the service life of the liquid cooling distribution device, and solving the problems that the CDU water pump in the prior art has no redundancy, if the system cannot normally operate due to damage, and the system reliability is low.
As shown in fig. 2 and 3, for the system schematic diagram and the internal structure diagram of the whole machine, the secondary side liquid enters from the secondary side liquid inlet 46 to pass through the circulating pump system, the circulating pump system comprises a first one-way valve 91 and a second one-way valve 92 which are connected in parallel with the circulating pump (a first pump 71 and a second pump 72) and the outlets of the circulating pump system respectively in series, and after passing through the circulating pump system, the secondary side liquid meets and flows into the inlet of the heat exchanger 100, and after passing through the heat exchanger, the secondary side liquid flows out from the secondary side liquid outlet 49. The effluent liquid is provided to the liquid cooled cabinet and after cooling the liquid cooled cabinet, it is returned to the secondary side liquid inlet 46 to form a secondary side circulation (primary side near the cold source, secondary side near the user).
Regarding the primary side of the system, the primary side is the cold source side, and the primary side fluid enters the heat exchanger 100 through the primary side fluid inlet 48 to exchange heat with the secondary side fluid and then flows out of the CDU through the primary side fluid outlet 47.
In some embodiments of the present invention, in some embodiments,
The device further comprises a liquid supplementing tank 60 and a liquid supplementing pump 70, wherein the liquid supplementing tank 60 is communicated to the first pipeline 101 through an eighth pipeline 108 (namely, the outlet of the liquid supplementing pump 70 is preferably connected to the pipeline before the inlets of the two circulating pumps), the liquid supplementing pump 70 is arranged on the first pipeline 101, and the liquid supplementing tank 60 is further communicated with a liquid outlet 42 and a liquid supplementing port 43 respectively.
The liquid cooling distribution device is in a further preferable structural form, the liquid supplementing effect can be carried out on the first pipeline in the liquid cooling distribution device through the arrangement of the liquid supplementing box and the liquid supplementing pump, the sufficient quantity of liquid on the secondary side is ensured, the sufficient heat exchange can be realized, the requirement of a user is met, the excessive liquid in the liquid supplementing box can be discharged through the liquid outlet, and the liquid supplementing port can supplement liquid in the liquid supplementing box.
In some embodiments of the present invention, in some embodiments,
Also included are an expansion tank 80 and a ninth conduit 109, said expansion tank 80 being connected to said first conduit 101 through said ninth conduit 109.
According to the invention, the expansion tank 80 is connected to the inlet of the parallel circulating pump to balance the pressure of the system, so that the operation process of the liquid cooling distribution unit is more stable.
In some embodiments of the present invention, in some embodiments,
And further comprises a first check valve 91 and a second check valve 92, wherein the first check valve 91 is arranged on the second pipeline 102 so as to only allow fluid to flow from the first pump 71 to the first heat exchange pipeline section 100a, and the second check valve 92 is arranged on the fifth pipeline 105 so as to only allow fluid to flow from the second pump 72 to the first heat exchange pipeline section 100a.
The invention further preferably provides a first and a second one-way valve, which can ensure that the fluid pumped by the first pump flows into the heat exchanger, and simultaneously prevent the fluid in the heat exchanger from flowing back to the first pump, and can also ensure that the fluid pumped by the second pump flows into the heat exchanger, and simultaneously prevent the fluid in the heat exchanger from flowing back to the second pump.
The check valve can prevent liquid from flowing back to the circulating pump, and the two sets of parallel circulating pumps are used for one time, so that the safety emergency reliability of the CDU system is effectively improved. For ease of maintenance, the pump ends are preferably connected using chucks.
In some embodiments of the present invention, in some embodiments,
The system further comprises a tenth pipeline 110 and a proportional valve 90, wherein one end of the tenth pipeline 110 is communicated to the first pipeline 101, the other end of the tenth pipeline is communicated to the third pipeline 103, the proportional valve 90 is arranged on the tenth pipeline 110, the proportional valve 90 can regulate the flow rate of fluid flowing from the third pipeline 103 to the first pipeline 101, the opening of the proportional valve 90 can be increased when the load of the liquid cooling distribution device is smaller than a first preset load, and the opening of the proportional valve 90 can be decreased when the load of the liquid cooling distribution device is larger than a second preset load, wherein the first preset load is smaller than or equal to the second preset load.
The invention can regulate the flow rate of the fluid flowing into the first pipeline from the third pipeline through the tenth pipeline arranged between the first pipeline and the third pipeline and the proportional valve arranged on the tenth pipeline, especially the opening of the proportional valve can be regulated to be large when the load of the liquid cooling distribution device is smaller than a first preset load, and the opening of the proportional valve can be regulated to be small when the load of the liquid cooling distribution device is larger than a second preset load, so that the fine control of the flow rate is realized, different loads are adapted, namely, more fluid can be bypassed through the proportional valve to return to the first pipeline when the heat exchange load of the liquid cooling distribution device is smaller, the flow rate of the heat exchange fluid is reduced, the waste of energy is reduced, and when the heat exchange load of the liquid cooling distribution device is larger, the smaller fluid is bypassed through the proportional valve, the flow rate of the heat exchange fluid is increased, and the flow rate of the heat exchange fluid which is output outwards is increased, so that the heat exchange requirement is met, the fine control of the flow rate is realized, the universality is improved, and the energy waste is reduced under the condition that the heat exchange requirement is met.
The system of the invention also comprises a proportional valve 90, wherein the inlet and the outlet of the proportional valve 90 are respectively connected with the outlet and the inlet of the parallel circulating pump system, namely, the circulating pump system is bypassed through the proportional valve 90, and the heat exchange flow of the secondary side is regulated through regulating the proportional valve 90.
In some embodiments of the present invention, in some embodiments,
The heat exchanger 100, the first pump 71 and the second pump 72 are all disposed inside the housing 200, and the secondary side liquid inlet 46, the secondary side liquid outlet 49, the primary side liquid inlet 48 and the primary side liquid outlet 47 are disposed outside the housing 200;
At least 2 fans are also included, wherein at least 1 fan is operated, and at least 1 fan is in a standby state.
The invention also provides at least two fans, at least one of which is in a standby state, so that the fans also have a backup redundancy design, and one or a group of fans can still keep working when one or a group of fans are damaged or fail, thereby further improving the operation reliability of the liquid cooling distribution device and further prolonging the service life of the liquid cooling distribution device.
In some embodiments of the present invention, in some embodiments,
The electric appliance box 55 is positioned in the shell 200, and a controller 56 is arranged inside the electric appliance box 55;
At least 2 fans include a first fan 51 and a second fan 52 provided at one side of the electrical box 55 and a third fan 53 and a fourth fan 54 provided at the other side of the electrical box 55,
The first fan 51 and the third fan 53 form a first group of fans, the second fan 52 and the fourth fan 54 form a second group of fans, the first group of fans forms a first air path through which the driving air flows, the second group of fans forms a second air path through which the driving air flows, and only one fan of the first group of fans is turned on, the other fan is in a standby state, and only one fan of the second group of fans is turned on, the other fan is in a standby state.
The invention also sets the first fan and the second fan at one side of the electric box, and sets the third fan and the fourth fan at the other side of the electric box, so that fans are arranged at both sides of the electric box, thereby improving the uniformity of air flow, improving the uniformity of heat exchange of the air flow to other parts in the electric box and the shell, and further improving the operation reliability of the liquid cooling distribution device and the service life of the liquid cooling distribution device by opening only one fan in the first group of fans and opening the other fan in the second group of fans and keeping the other fan in the standby state.
In some embodiments of the present invention, in some embodiments,
The casing 200 includes a front panel 10 and a rear panel 40 that are disposed opposite to each other, the front panel 10 is provided with a first grille 14 and a second grille 15, the rear panel 40 is provided with a third grille 50, the first grille 14 is disposed opposite to the first fan 51, and the second grille 15 is disposed opposite to the second fan 52;
the first grille 14 and the second grille 15 are air inlet grilles, and the third grille 50 is an air outlet grille;
A side-by-side operation mode in which the first fan 51 and the second fan 52 are both operated while the third fan 53 and the fourth fan 54 are both in a standby state, or in which the third fan 53 and the fourth fan 54 are both operated while the first fan 51 and the second fan 52 are both in a standby state;
And in a cross working mode, the first fan 51 and the fourth fan 54 are both operated while the second fan 52 and the third fan 53 are both in a standby state, or the second fan 52 and the third fan 53 are both operated while the first fan 51 and the fourth fan 54 are both in a standby state.
The invention has the advantages that the two groups of fans (4 fans) and 3 grids are matched to operate in various different structural forms and operation modes, namely, one of the fan groups can be effectively operated, the other is standby, one of the other fan groups is operated, the other is standby, the backup redundancy design is ensured, the continuous and effective operation of the liquid cooling distribution unit is ensured through the operation mode of the other fan group in the operating fan group when one of the fan groups fails, the operation reliability of the liquid cooling distribution device is improved, and the service life is prolonged.
The electric box is positioned at the front part of the CDU, a plurality of controllers 56 are arranged in the electric box 55, the electric box 55 is provided with a plurality of cooling fans at the front and rear sides along the length direction of the CDU, at least two sets of cooling fans are adopted, and one set of fans works and the other set does not work in a standby mode. The front and rear panels of the CDU are provided with air inlet and outlet grids (a first grid 14, a second grid 15 and a third grid 50) which are matched with two sets of fans to form a heat dissipation air channel, and the direction of the fans is preferably toward the interior of the electric box for facilitating heat dissipation of the electric box.
The CDU system provided by the invention has compact system and symmetrical and attractive structure, and simultaneously has two sets of fans and air duct designs to realize the redundancy of heat dissipation of electric components and parts, so that the reliability of the CDU is improved. And the system flow is finely controlled through a bypass-arranged proportional valve.
In some embodiments of the present invention, in some embodiments,
The front panel 10 is also provided with a display screen 11, a switch 12 and a communication interface 13, and the first grille 14 and the second grille 15 are symmetrically arranged relative to the display screen 11;
The secondary side liquid inlet 46, the secondary side liquid outlet 49, the primary side liquid inlet 48 and the primary side liquid outlet 47 are all disposed on the rear panel 40, the secondary side liquid inlet 46 and the secondary side liquid outlet 49 are symmetrically disposed with respect to the third grille 50, and the primary side liquid inlet 48 and the primary side liquid outlet 47 are symmetrically disposed with respect to the third grille 50.
The first and second grids are symmetrically arranged relative to the display screen, and the first and second fans are respectively opposite to the first and second grids, so that the two fans are also symmetrically arranged relative to the display screen, and the overall aesthetic property of the liquid cooling distribution unit can be improved.
According to the invention, through the symmetrical design of the CDU front panel and the air inlet and outlet grille, the symmetrical design of the rear panel water inlet and outlet pipe orifice and the symmetrical design of the electric box air inlet and outlet, the redundant design of the electric box cooling fan is realized by matching with the double fans, and the symmetrical aesthetic property of the appearance of the whole structure is realized and the reliability of the CDU is improved.
Referring to fig. 1a and 1b, the CDU housing of the present invention comprises a front panel 10, a bottom shell 20, a top cover 30, and a rear panel 40, wherein the front panel 10 includes a display 11, a switch 12, a communication interface 13, a first grille 14, a second grille 15, and a handle 16, and the rear panel 40 includes a liquid outlet 42, a liquid supplementing port 43, a power supply connector 44, a secondary side liquid inlet 46, a primary side liquid outlet 47, a primary side liquid inlet 48, a secondary side liquid outlet 49, and a third grille 50.
The invention provides a CDU flow path system, which is provided with a proportional valve with bypass arrangement and can realize fine control of system flow.
The invention can solve the following problems:
1. the existing CDU structure has the problems that a water pump and a cooling fan have no redundancy and are not reliable enough;
2. The CDU flow control is not fine enough at present;
3. the CDU system structure is not compact and beautiful enough at present.
The invention also provides a cabinet heat exchange device which comprises the liquid cooling distribution device.
The invention provides a distributed liquid cooling CDU with a compact structure, wherein the CDU is also called a liquid cooling distribution unit or a cold quantity distribution unit, the CDU is inserted into a liquid cooling server cabinet and is used as a place for heat exchange of a server side (secondary side) and a cold source side (primary side), and the CDU mainly comprises a heat exchanger, a secondary side liquid cooling circulating pump, a circulating pump outlet check valve, a secondary side system flow regulating valve, a secondary side liquid supplementing tank and liquid supplementing pump, an expansion tank, an electric cabinet, a cooling fan, a temperature and humidity sensor, a pressure sensor and the like.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention. The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (10)
1. A liquid cooling distribution device is characterized by comprising:
The heat exchanger (100), a first pump (71), a second pump (72), a secondary side liquid inlet (46), a secondary side liquid outlet (49), a primary side liquid inlet (48) and a primary side liquid outlet (47), and further comprises a first pipeline (101), a second pipeline (102), a third pipeline (103), a fourth pipeline (104), a fifth pipeline (105), a sixth pipeline (106) and a seventh pipeline (107), wherein the heat exchanger (100) is internally provided with a first heat exchange pipe section (100 a) and a second heat exchange pipe section (100 b),
The secondary side liquid inlet (46) is communicated with one end of the first pump (71) through the first pipeline (101), the other end of the first pump (71) is communicated with one end of the first heat exchange pipe section (100 a) through the second pipeline (102), the other end of the first heat exchange pipe section (100 a) is communicated with the secondary side liquid outlet (49) through a third pipeline (103), the fourth pipeline (104) is used for communicating one end of the second pump (72) with the first pipeline (101), and the fifth pipeline (105) is used for communicating the other end of the second pump (72) with the second pipeline (102);
The primary side liquid inlet (48) is communicated with one end of the second heat exchange tube section (100 b) through the sixth pipeline (106), and the other end of the second heat exchange tube section (100 b) is communicated with the primary side liquid outlet (47) through the seventh pipeline (107);
The first heat exchange tube section (100 a) exchanges heat with the second heat exchange tube section (100 b), and only one of the first pump (71) and the second pump (72) is opened, and the other is in a standby state.
2. The liquid cooling distribution device according to claim 1, wherein:
The automatic liquid supplementing device is characterized by further comprising a liquid supplementing box (60) and a liquid supplementing pump (70), wherein the liquid supplementing box (60) is communicated to the first pipeline (101) through an eighth pipeline (108), the liquid supplementing pump (70) is arranged on the first pipeline (101), and the liquid supplementing box (60) is further respectively communicated with a liquid outlet (42) and a liquid supplementing port (43).
3. The liquid cooling distribution device according to claim 1, wherein:
Also comprises an expansion tank (80) and a ninth pipeline (109), wherein the expansion tank (80) is communicated to the first pipeline (101) through the ninth pipeline (109).
4. The liquid cooling distribution device according to claim 1, wherein:
The system further comprises a first one-way valve (91) and a second one-way valve (92), wherein the first one-way valve (91) is arranged on the second pipeline (102) so as to only allow fluid to flow from the first pump (71) to the first heat exchange pipeline section (100 a), and the second one-way valve (92) is arranged on the fifth pipeline (105) so as to only allow fluid to flow from the second pump (72) to the first heat exchange pipeline section (100 a).
5. The liquid cooling distribution device according to any one of claims 1 to 4, wherein:
The liquid cooling distribution device comprises a first pipeline (101), a second pipeline (101) and a proportional valve (90), wherein one end of the first pipeline (110) is communicated to the first pipeline (101), the other end of the first pipeline is communicated to the third pipeline (103), the proportional valve (90) is arranged on the first pipeline (110), the proportional valve (90) can regulate the flow rate of fluid flowing from the third pipeline (103) to the first pipeline (101), when the load of the liquid cooling distribution device is smaller than a first preset load, the opening of the proportional valve (90) can be regulated to be larger, and when the load of the liquid cooling distribution device is larger than a second preset load, the opening of the proportional valve (90) can be regulated to be smaller, wherein the first preset load is smaller than or equal to the second preset load.
6. The liquid cooling distribution device according to any one of claims 1 to 5, wherein:
The heat exchanger comprises a shell (200), wherein the heat exchanger (100), the first pump (71) and the second pump (72) are arranged inside the shell (200), and the secondary side liquid inlet (46), the secondary side liquid outlet (49), the primary side liquid inlet (48) and the primary side liquid outlet (47) are arranged outside the shell (200);
At least 2 fans are also included, wherein at least 1 fan is operated, and at least 1 fan is in a standby state.
7. The liquid cooling distribution device according to claim 6, wherein:
The electric appliance box (55) is positioned in the shell (200), and a controller (56) is arranged inside the electric appliance box (55);
At least 2 fans include a first fan (51) and a second fan (52) provided at one side of the electrical box (55), and a third fan (53) and a fourth fan (54) provided at the other side of the electrical box (55),
The first fan (51) and the third fan (53) form a first group of fan groups, the second fan (52) and the fourth fan (54) form a second group of fan groups, the first group of fan groups form a first air path for driving air flow, the second group of fan groups form a second air path for driving air flow, only one fan in the first group of fan groups is opened, the other fan in the first group of fan groups is in a standby state, only one fan in the second group of fan groups is opened, and the other fan in the second group of fan groups is in a standby state.
8. The liquid cooling distribution device according to claim 7, wherein:
The shell (200) comprises a front panel (10) and a rear panel (40) which are oppositely arranged, wherein a first grille (14) and a second grille (15) are arranged on the front panel (10), a third grille (50) is arranged on the rear panel (40), the first grille (14) and the first fan (51) are oppositely arranged, and the second grille (15) and the second fan (52) are oppositely arranged, the first grille (14) and the second grille (15) are air inlet grilles, and the third grille (50) is an air outlet grille;
A side-by-side operation mode in which the first fan (51) and the second fan (52) are both operated while the third fan (53) and the fourth fan (54) are both in a standby state, or in which the third fan (53) and the fourth fan (54) are both operated while the first fan (51) and the second fan (52) are both in a standby state;
And in a cross working mode, the first fan (51) and the fourth fan (54) are both operated, and the second fan (52) and the third fan (53) are both in a standby state, or the second fan (52) and the third fan (53) are both operated, and the first fan (51) and the fourth fan (54) are both in a standby state.
9. The liquid cooling distribution device according to claim 8, wherein:
The front panel (10) is also provided with a display screen (11), a switch (12) and a communication interface (13), and the first grille (14) and the second grille (15) are symmetrically arranged relative to the display screen (11);
The secondary side liquid inlet (46), the secondary side liquid outlet (49), the primary side liquid inlet (48) and the primary side liquid outlet (47) are all arranged on the rear panel (40), the secondary side liquid inlet (46) and the secondary side liquid outlet (49) are symmetrically arranged relative to the third grid (50), and the primary side liquid inlet (48) and the primary side liquid outlet (47) are symmetrically arranged relative to the third grid (50).
10. A cabinet heat exchange device is characterized by comprising the liquid cooling distribution device according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411510828.1A CN119383908A (en) | 2024-10-28 | 2024-10-28 | Liquid cooling distribution device and cabinet heat exchange device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411510828.1A CN119383908A (en) | 2024-10-28 | 2024-10-28 | Liquid cooling distribution device and cabinet heat exchange device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119383908A true CN119383908A (en) | 2025-01-28 |
Family
ID=94333993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411510828.1A Pending CN119383908A (en) | 2024-10-28 | 2024-10-28 | Liquid cooling distribution device and cabinet heat exchange device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119383908A (en) |
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2024
- 2024-10-28 CN CN202411510828.1A patent/CN119383908A/en active Pending
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