CN220798858U - Liquid cooling heat dissipation mechanism - Google Patents
Liquid cooling heat dissipation mechanism Download PDFInfo
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- CN220798858U CN220798858U CN202322151347.3U CN202322151347U CN220798858U CN 220798858 U CN220798858 U CN 220798858U CN 202322151347 U CN202322151347 U CN 202322151347U CN 220798858 U CN220798858 U CN 220798858U
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- liquid cooling
- liquid
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- heat exchange
- heat
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- 238000001816 cooling Methods 0.000 title claims abstract description 150
- 239000007788 liquid Substances 0.000 title claims abstract description 143
- 230000007246 mechanism Effects 0.000 title claims abstract description 38
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 24
- 238000005057 refrigeration Methods 0.000 claims abstract description 40
- 239000003507 refrigerant Substances 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 9
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000006185 dispersion Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The application discloses a liquid cooling heat dissipation mechanism, which comprises a plurality of tail end liquid cooling devices, a liquid cooling pump unit and a heat exchange unit which are sequentially connected in series and form a closed loop; the liquid cooling pump unit comprises at least two liquid cooling pumps connected in parallel; the heat exchange unit comprises at least two heat exchange refrigeration components connected in parallel. All liquid cooling pumps and all heat transfer refrigeration components in this application can start the operation simultaneously, have promoted the heat dispersion of liquid cooling mechanism need not to open the cold unit of compressor mechanical benefit and can realize full-load refrigeration operation to the energy consumption has been reduced.
Description
Technical Field
The application relates to the technical field of liquid cooling, in particular to a liquid cooling mechanism.
Background
At present, a conventional liquid cooling circulation heat dissipation scheme in the market adopts a circulation mode as follows: as shown in fig. 1, each liquid cooling pump 100 corresponds to one heat exchange refrigeration assembly 200, and because the circulation design of the pipeline is unreasonable, that is, the heat exchange flow path a and the heat exchange flow path B cannot be opened and operated simultaneously, when the single heat exchange refrigeration assembly 200 cannot bear the load of the terminal module server in the outdoor environment temperature transition interval (20-30), the mechanical cooling unit of the compressor needs to be additionally opened to supplement the refrigeration capacity, the operation duration of mechanical refrigeration of the compressor is prolonged, and the energy consumption increase of the data center is adversely affected.
Accordingly, the prior art is still in need of improvement and development.
Disclosure of Invention
The technical problem that this application was to solve lies in, provides a liquid cooling mechanism to the above-mentioned defect of prior art, aims at solving the high problem of liquid cooling circulation heat dissipation refrigeration energy consumption among the prior art.
The technical scheme adopted for solving the technical problems is as follows:
the liquid cooling heat dissipation mechanism comprises a plurality of tail end liquid cooling devices, a liquid cooling pump unit and a heat exchange unit which are sequentially connected in series and form a closed loop; the liquid cooling pump unit comprises at least two liquid cooling pumps connected in parallel; the heat exchange unit comprises at least two heat exchange refrigeration components connected in parallel.
The liquid cooling mechanism further comprises:
the pump front pressure detector is arranged at the inlet of the liquid cooling pump;
the pressure detector behind the pump is arranged at the outlet of the liquid cooling pump;
and the control device is respectively and electrically connected with the front pump pressure detector, the rear pump pressure detector and the liquid cooling pump.
The liquid cooling mechanism further comprises:
the one-way valve is arranged at the outlet of the liquid cooling pump and is electrically connected with the control device.
The liquid cooling mechanism, wherein, the heat transfer refrigeration subassembly includes:
a heat exchanger; an indoor side inlet of the heat exchanger is connected with the liquid cooling pump unit, and an indoor side outlet of the heat exchanger is connected with tail end liquid cooling equipment close to the heat exchange unit;
and the cold source module is respectively connected with the outdoor side inlet and the outdoor side outlet of the heat exchanger.
The liquid cooling mechanism, wherein, the heat exchange refrigeration subassembly still includes:
the electric valve is arranged at the indoor inlet of the heat exchanger and is electrically connected with the control device.
The liquid cooling mechanism, wherein, terminal liquid cooling equipment includes:
an immersed liquid cooling cabinet; the immersed liquid cooling cabinet is used for accommodating a refrigerant and heating equipment.
The liquid cooling mechanism, wherein, terminal liquid cooling equipment includes:
spray type liquid cooling box; the spray type liquid cooling box is provided with a nozzle, and the nozzle is connected with the heat exchange unit.
The liquid cooling mechanism, wherein, terminal liquid cooling equipment includes:
a cold plate type liquid cooling cabinet; and a plurality of refrigerant flow channels are arranged in the cold plate type liquid cooling machine box.
The liquid cooling heat dissipation mechanism comprises a plurality of tail end liquid cooling devices, a liquid cooling pump unit and a heat exchange unit which are sequentially connected in series to form a closed loop; the liquid cooling pump unit comprises at least two liquid cooling pumps connected in parallel; the heat exchange unit comprises at least two heat exchange refrigeration components connected in parallel. All liquid cooling pumps and all heat transfer refrigeration components in this application can start the operation simultaneously, have promoted the heat dispersion of liquid cooling mechanism need not to open the cold unit of compressor mechanical benefit and can realize full-load refrigeration operation to the energy consumption has been reduced.
Drawings
FIG. 1 is a schematic diagram of a prior art liquid-cooled circulating heat dissipation scheme;
FIG. 2 is a schematic diagram of a liquid-cooled heat dissipation mechanism according to the present disclosure;
fig. 3 is a functional block diagram of the liquid-cooled heat dissipation mechanism described in this application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application clearer and more specific, the present application will be described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The application provides a liquid cooling mechanism, as shown in fig. 2, liquid cooling mechanism includes: a plurality of terminal liquid cooling devices 1, a liquid cooling pump unit 2 and a heat exchange unit 3; the plurality of terminal liquid cooling devices 1, the liquid cooling pump unit 2 and the heat exchange unit 3 are sequentially connected end to end, so that a closed loop circuit connected in series is formed. The liquid cooling pump unit 2 comprises at least two liquid cooling pumps 21, and the liquid cooling pumps 21 in the liquid cooling pump unit 2 are connected in parallel; the heat exchange unit 3 comprises at least two heat exchange refrigeration components 31, and the heat exchange refrigeration components 31 in the heat exchange unit 3 are connected in parallel.
All liquid cooling pumps 21 and all heat transfer refrigeration components 31 in this application can start the operation simultaneously, have promoted the heat dispersion of liquid cooling mechanism, need not to open the cold unit of compressor mechanical benefit and can realize full-load refrigeration operation to the energy consumption has been reduced.
Taking the load power of the end module server as 1Q and taking two heat exchange and refrigeration assemblies 31 as examples in the application, the outdoor environment temperature meets the heat dissipation requirement of the heat exchange and refrigeration assemblies 31, and the single heat exchange and refrigeration assembly 31 can provide heat dissipation capacity of 0.6Q. If the scheme of only opening one heat exchange refrigeration assembly 31 in the prior art is adopted, a heat load of 0.4Q remains, and the mechanical cooling unit of the compressor needs to be additionally started for cooling capacity supplement, so that the refrigeration energy consumption is obviously increased. By adopting the liquid cooling heat dissipation mechanism, two heat exchange refrigeration components 31 are started simultaneously, and the heat dissipation capacity of 1.2Q can be provided, namely, the mechanical cold compensation unit of the compressor is not required to be additionally started for cold compensation, so that the energy consumption is reduced.
It should be noted that, the design heat exchange capacity of each heat exchange refrigeration component 31 in the heat exchange unit 3 is equivalent to the power of the end module server (i.e. the heat generating device), that is, any one heat exchange refrigeration component 31 can independently bear the refrigeration and heat dissipation requirements of all the end module servers, that is, when any one heat exchange refrigeration component 31 in the heat exchange unit 3 operates independently, the refrigeration requirements of the end module full-load power operation can be met.
In addition, since only one liquid cooling pump 21 can be turned on at a time of starting operation in the prior art, when the liquid cooling pump 21 in the operation state fails, another liquid cooling pump 21 which is not failed and is in the shutdown state needs to be switched to start operation, resulting in frequent switching of the liquid cooling pump 21. In the application, all liquid cooling pumps 21 are simultaneously started and are mutually backed up, so that the function of redundancy of devices is realized; even if one liquid cooling pump 21 is in fault, the normal operation of the liquid cooling heat dissipation mechanism can be ensured, and frequent switching of the liquid cooling pump 21 is avoided.
In one embodiment of the present application, the number of the terminal liquid cooling device 1, the liquid cooling pump 21 and the heat exchanging and refrigerating assembly 31 is two; after being discharged from the outlet end of the liquid cooling pump unit 2, the refrigerant is divided into two pipelines, and enters two heat exchange refrigeration components 31 respectively, and then is collected at the outlet ends of the two heat exchange refrigeration components 31, and circularly flows back to the tail end liquid cooling equipment 1, and the tail end liquid cooling equipment 1 is used for refrigerating and cooling a tail end module server.
In an embodiment of the present application, as shown in fig. 2 and fig. 3, the liquid cooling heat dissipation mechanism further includes: a pre-pump pressure detector 4, a post-pump pressure detector 5 and a control device 8; the pre-pump pressure detector 4 is arranged at the inlet of the liquid cooling pump 21, the post-pump pressure detector 5 is arranged at the outlet of the liquid cooling pump 21, and the control device 8 is respectively electrically connected with the pre-pump pressure detector 4, the post-pump pressure detector 5 and the liquid cooling pump 21.
The pre-pump pressure detector 4 is used for acquiring a pre-pump pressure value at the inlet of the liquid cooling pump 21, and the post-pump pressure detector 5 is used for acquiring a post-pump pressure value at the outlet of the liquid cooling pump 21. The control means 8 comprises a comparator and a controller; the input end of the comparator is correspondingly connected with the pre-pump pressure detector 4 and the post-pump pressure detector 5 to obtain a pre-pump pressure value and a post-pump pressure value; the input end of the comparator is correspondingly provided with a preset threshold value (pump pressure difference over-high alarm value), and the threshold value is used as a reference for judgment. The comparator is electrically connected to the input end of the controller; and comparing the difference value between the pressure value after the pump and the pressure value before the pump with the threshold value through the comparator, and sending a corresponding control signal to the corresponding liquid cooling pump 21 by the controller according to the comparison result so as to ensure the operation safety of the liquid cooling pump 21.
In one embodiment of the present disclosure, when only one liquid cooling pump 21 is turned on and the difference between the pressure value after the pump and the pressure value before the pump corresponding to the liquid cooling pump 21 is greater than or equal to the threshold, if the liquid cooling pump 21 fails, the controller sends a shutdown signal to the liquid cooling pump 21 and sends an on signal to the other liquid cooling pump 21, so as to ensure the normal cooling operation of the liquid cooling mechanism.
In one implementation manner of this embodiment, the controller is a controller with a chip model number of STM 32F; the pressure sensor is adopted by the pressure detector 4 before the pump and the pressure detector 5 after the pump.
In one embodiment of the present application, the liquid cooling heat dissipation mechanism further includes a check valve 6; the check valve 6 is disposed at the outlet of the liquid cooling pump 21 and is electrically connected to the control device 8. Specifically, a check valve 6 is disposed at the outlet of each liquid cooling pump 21, and the check valve 6 is only used for the refrigerant flowing from the liquid cooling pump 21 to the heat exchange unit 3, and plays a role in preventing the refrigerant from flowing back.
In one embodiment of the present application, as shown in fig. 3, the liquid cooling heat dissipation mechanism further includes a timer 9, where the timer 9 is connected to the control device 8; when only one liquid cooling pump 21 is turned on and the timer 9 times up, the control device 8 switches the liquid cooling pumps 21, sends a shutdown signal to the liquid cooling pump 21 which is originally in the turned-on state, and sends an on signal to the liquid cooling pump 21 which is originally in the turned-off state, thereby executing a round trip switching mechanism of the liquid cooling pumps 21.
The heat exchange refrigeration assembly 31 comprises a heat exchanger 311 and a cold source module 312; an indoor side inlet of the heat exchanger 311 is connected with the liquid cooling pump unit 2, and an indoor side outlet is connected with the tail end liquid cooling equipment 1 close to the heat exchange unit 3; the cold source module 312 is respectively connected with the outdoor inlet and the outdoor outlet of the heat exchanger 311, and the cold source module 312 is configured to exchange heat with the refrigerant through the heat exchanger 311, reduce the high-temperature refrigerant to a medium-low-temperature refrigerant, and ensure refrigeration of the high-density heat flow server of the terminal module.
The heat exchange refrigeration assembly 31 further comprises an electric valve 7, and the electric valve 7 is disposed at an indoor side inlet of the heat exchanger 311 and is electrically connected with the control device 8. Specifically, an electric valve 7 is correspondingly arranged at the indoor side inlet of each heat exchanger 311, so that the flow of the refrigerant entering the corresponding heat exchanger 311 is regulated and controlled through the electric valve 7; meanwhile, the electric valve 7 is also used for controlling the on-off of a flow path where the electric valve is located.
Example one of the present application
The tail end liquid cooling equipment 1 comprises an immersed liquid cooling cabinet; the immersed liquid cooling cabinet is used for accommodating the refrigerant and the heating equipment, wherein the heating equipment is immersed in the refrigerant, so that an immersed liquid cooling heat dissipation mode in which the heating equipment is in direct contact with the refrigerant is realized.
Embodiment II of the present application
The tail end liquid cooling equipment 1 comprises a spray type liquid cooling box; the spray type liquid cooling box is provided with a nozzle, and the nozzle is connected with the heat exchange unit 3; and the outlet of the spray type liquid cooling box is connected with the liquid cooling pump unit 2. Wherein, the heating equipment is arranged in the spray type liquid cooling box, thereby realizing a spray type liquid cooling heat dissipation mode that the heating equipment is in direct contact with the refrigerant.
Example III in the present application
The tail end liquid cooling equipment 1 comprises a cold plate type liquid cooling machine box; the cold plate type liquid cooling machine box is internally provided with a plurality of refrigerant flow channels, the inlet of each refrigerant flow channel is connected with the heat exchange unit 3, and the outlet of each refrigerant flow channel is connected with the liquid cooling pump unit 2. The outer side wall of the cold plate type liquid cooling machine box is attached to the heating equipment, so that a cold plate type liquid cooling heat dissipation mode in which the heating equipment is not in direct contact with the refrigerant is realized.
The refrigerant in the present application is not limited to freon, water or the remaining glycol solution.
In summary, the present application provides a liquid cooling heat dissipation mechanism, which includes a plurality of terminal liquid cooling devices, a liquid cooling pump unit and a heat exchange unit that are sequentially connected in series and form a closed loop; the liquid cooling pump unit comprises at least two liquid cooling pumps connected in parallel; the heat exchange unit comprises at least two heat exchange refrigeration components connected in parallel. All liquid cooling pumps and all heat transfer refrigeration components in this application can start the operation simultaneously, have promoted the heat dispersion of liquid cooling mechanism need not to open the cold unit of compressor mechanical benefit and can realize full-load refrigeration operation to the energy consumption has been reduced.
It is to be understood that the application of the present application is not limited to the examples described above, but that modifications and variations can be made by a person skilled in the art from the above description, all of which modifications and variations are intended to fall within the scope of the claims appended hereto.
Claims (8)
1. The liquid cooling heat dissipation mechanism is characterized by comprising a plurality of tail end liquid cooling devices, a liquid cooling pump unit and a heat exchange unit which are sequentially connected in series and form a closed loop; the liquid cooling pump unit comprises at least two liquid cooling pumps connected in parallel; the heat exchange unit comprises at least two heat exchange refrigeration components connected in parallel.
2. The liquid-cooled heat sink mechanism of claim 1 further comprising:
the pump front pressure detector is arranged at the inlet of the liquid cooling pump;
the pressure detector behind the pump is arranged at the outlet of the liquid cooling pump;
and the control device is respectively and electrically connected with the front pump pressure detector, the rear pump pressure detector and the liquid cooling pump.
3. The liquid-cooled heat sink mechanism of claim 2, further comprising:
the one-way valve is arranged at the outlet of the liquid cooling pump and is electrically connected with the control device.
4. The liquid-cooled heat sink mechanism of claim 2, wherein the heat exchange refrigeration assembly comprises:
a heat exchanger; an indoor side inlet of the heat exchanger is connected with the liquid cooling pump unit, and an indoor side outlet of the heat exchanger is connected with tail end liquid cooling equipment close to the heat exchange unit;
and the cold source module is respectively connected with the outdoor side inlet and the outdoor side outlet of the heat exchanger.
5. The liquid cooled heat sink mechanism of claim 4 wherein the heat exchange refrigeration assembly further comprises:
the electric valve is arranged at the indoor inlet of the heat exchanger and is electrically connected with the control device.
6. The liquid-cooled heat sink mechanism of claim 1, wherein the terminal liquid-cooling apparatus comprises:
an immersed liquid cooling cabinet; the immersed liquid cooling cabinet is used for accommodating a refrigerant and heating equipment.
7. The liquid-cooled heat sink mechanism of claim 1, wherein the terminal liquid-cooling apparatus comprises:
spray type liquid cooling box; the spray type liquid cooling box is provided with a nozzle, and the nozzle is connected with the heat exchange unit.
8. The liquid-cooled heat sink mechanism of claim 1, wherein the terminal liquid-cooling apparatus comprises:
a cold plate type liquid cooling cabinet; and a plurality of refrigerant flow channels are arranged in the cold plate type liquid cooling machine box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322151347.3U CN220798858U (en) | 2023-08-10 | 2023-08-10 | Liquid cooling heat dissipation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322151347.3U CN220798858U (en) | 2023-08-10 | 2023-08-10 | Liquid cooling heat dissipation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220798858U true CN220798858U (en) | 2024-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322151347.3U Active CN220798858U (en) | 2023-08-10 | 2023-08-10 | Liquid cooling heat dissipation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220798858U (en) |
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2023
- 2023-08-10 CN CN202322151347.3U patent/CN220798858U/en active Active
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