CN110557933B - Online pluggable cabinet-level spray liquid cooling system and control method - Google Patents
Online pluggable cabinet-level spray liquid cooling system and control method Download PDFInfo
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- CN110557933B CN110557933B CN201910876932.5A CN201910876932A CN110557933B CN 110557933 B CN110557933 B CN 110557933B CN 201910876932 A CN201910876932 A CN 201910876932A CN 110557933 B CN110557933 B CN 110557933B
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- 238000001816 cooling Methods 0.000 title claims abstract description 105
- 239000007921 spray Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000003507 refrigerant Substances 0.000 claims abstract description 267
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 238000005057 refrigeration Methods 0.000 claims abstract description 20
- 230000001276 controlling effect Effects 0.000 claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 238000012544 monitoring process Methods 0.000 claims description 34
- 238000005485 electric heating Methods 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 18
- 238000000926 separation method Methods 0.000 claims description 14
- 238000005507 spraying Methods 0.000 claims description 11
- 238000011084 recovery Methods 0.000 claims description 10
- 230000008016 vaporization Effects 0.000 claims description 10
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- 238000012423 maintenance Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 239000002826 coolant Substances 0.000 claims description 5
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- 238000004378 air conditioning Methods 0.000 description 1
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- FEBLZLNTKCEFIT-VSXGLTOVSA-N fluocinolone acetonide Chemical compound C1([C@@H](F)C2)=CC(=O)C=C[C@]1(C)[C@]1(F)[C@@H]2[C@@H]2C[C@H]3OC(C)(C)O[C@@]3(C(=O)CO)[C@@]2(C)C[C@@H]1O FEBLZLNTKCEFIT-VSXGLTOVSA-N 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20763—Liquid cooling without phase change
- H05K7/20781—Liquid cooling without phase change within cabinets for removing heat from server blades
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20836—Thermal management, e.g. server temperature control
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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 disclosure relates to an online pluggable cabinet-level spray liquid cooling system and a control method. Wherein, this system includes: the server cabinet body, the refrigerant external circulation device, the centralized management device; the server cabinet body is divided into a plurality of cabinet liquid cooling units, and the cooling of the server is completed through the contact of a refrigerant with the key heating points; the refrigerant external circulation device is used for intensively storing liquid refrigerants into the refrigerant liquid storage tank, regulating the pressure of a refrigerant pipe through the refrigerant circulating pump, and conveying low-temperature refrigerants into the server cabinet body to complete refrigerant circulation; the centralized management device is used for receiving the working state parameters of the servers collected by the collection device, calculating the refrigeration requirement of key heating points of each server through a preset algorithm, and controlling the refrigerant circulating pump and the circulating fan to control the system. The liquid cooling system has the advantages of strong adaptability and low arrangement cost.
Description
Technical Field
The disclosure relates to the field of refrigeration, in particular to an online pluggable cabinet-level spray liquid cooling system and a control method.
Background
With the rapid development of new generation information technology industries such as 5G, internet of things, cloud computing and the like, the data volume is rapidly increased, the global data stock of 2016 years reaches 16ZB according to IDC statistics, and the data stock is expected to be increased to more than 40ZB in 2020, 2025 or 160ZB. The proliferation of data volume has led to the accelerated development of the global cloud computing industry, with the data center IDC being an IT infrastructure, which benefits directly.
At present, the power consumption of the China data center is continuously increased by more than 12% in eight years, the total power consumption in 2020 is expected to reach 2962 hundred million kilowatts, the quantity of the China data center is more than 40 ten thousand according to the expression in the national green data center test point working scheme, the annual power consumption exceeds 1.5% of the total social power consumption, and most of the data center PUEs are still generally higher, so that the data center PUEs are reduced, and the method has great significance for energy conservation and consumption reduction in China.
At present, the main stream data center mainly uses a mechanical refrigeration mode to cool a data center machine room in a cold air heat exchange mode, the energy consumption is always high, and the traditional air cooling refrigeration mode can not meet the requirements along with the gradual increase of the power density of a single cabinet to 10KW or higher.
The liquid cooling heat dissipation mode is based on the principle that a refrigerant is directly or indirectly contacted with a server, heat of the server is taken away through heat exchange, the liquid cooling server and a heat dissipation system thereof can solve the problem of a high-density server of 20KW or more, the power consumption of a heat dissipation air conditioner of the server can be reduced to a level which cannot be achieved by a traditional air conditioning scheme, and the liquid cooling heat dissipation method is one of the best schemes for solving the problems of high density, energy conservation and consumption reduction of a data center in China.
Two main research directions of the existing liquid cooling server heat dissipation system are a cold plate type liquid cooling server and an immersed liquid cooling server. The immersed liquid cooling server scheme is that the server is directly immersed by using a refrigerant, and heat is taken away by circulating the refrigerant; the scheme of the cold plate liquid cooling server is that the back plate patch is contacted with the key heat dissipation point of the server by utilizing the form of the back plate patch, and heat is circularly taken away by a mode of indirect contact of a refrigerant. However, these liquid solutions have a great number of problems during the actual operation.
Most typically, the cold plate type liquid cooling system or other server-level liquid cooling systems not only need to deeply customize a server (reform the server, add a precise backboard and expensive self-sealing quick connectors), but also need a server manufacturer to completely change the form of the existing product, so that new server products are produced to match the existing refrigeration system, the applicability is poor, the number of movable connector points of the liquid cooling system is numerous (at least 2 per server), the on-line plugging risk is high, and serious leakage risks exist.
The system also needs a completely immersed server of the refrigerant, the consumption of the refrigerant is excessive, the primary investment cost CAPEX is abnormally high, a large amount of evaporation and dissipation phenomena of the refrigerant exist during operation and maintenance, the operation cost OPEX is very high, if frequent online plug operation is carried out, the operation cost OPEX is further increased, and the total cost TCO of the liquid cooling system is abnormally high and has no application value.
How to solve the problem of server adaptability related to the existing liquid cooling system, the problem of online plugging and unplugging without risk and low cost, and the problem of high TCO cost of total ownership become a problem to be solved.
It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
An object of the present disclosure is to provide an online pluggable cabinet-level spray liquid cooling system and a control method thereof, which overcome one or more of the problems due to the limitations and disadvantages of the related art to at least a certain extent.
According to one aspect of the present disclosure, there is provided an on-line pluggable cabinet-level spray liquid cooling system, comprising:
the server cabinet body, the refrigerant external circulation device, the centralized management device;
the server cabinet body comprises a cabinet liquid cooling unit, a refrigerant liquid supply and return pipeline and an auxiliary matching unit, wherein the server cabinet body is divided into a plurality of cabinet liquid cooling units, and each cabinet liquid cooling unit independently operates; the server cabinet body is contacted with key heating points through a refrigerant to finish the refrigeration of the server;
the refrigerant external circulation device comprises a refrigerant circulation pump, a refrigerant liquid storage tank, a plate heat exchanger and refrigerant pipes, wherein the refrigerant liquid is concentrated and stored in the refrigerant liquid storage tank, the pressure of the refrigerant pipes is regulated by the refrigerant circulation pump according to the control of the concentrated management device, and the low-temperature refrigerant in the refrigerant liquid storage tank is conveyed into a server cabinet body to complete refrigerant circulation;
and the centralized management device is respectively connected with the acquisition device and the refrigerant external circulation device, and is used for receiving the working state parameters of the servers acquired by the acquisition device, calculating the refrigeration requirement of key heating points of each server through a preset algorithm, and controlling the refrigerant circulation pump and the circulation fan to realize the control of the online plug cabinet-level spray liquid cooling system.
In one exemplary embodiment of the present disclosure, the server cabinet includes:
the equipment cabinet comprises a cabinet liquid cooling unit, a refrigerant liquid supply and return pipeline and an auxiliary matching unit;
the cabinet liquid cooling unit comprises a server cell, an auxiliary air inlet and outlet electric heating system and a server cell monitoring system, wherein in the server cell, liquid refrigerants conveyed by a refrigerant liquid supply pipeline are sprayed out by a refrigerant spray head in the server cell to aim at a key heating point of a server, so that the low-temperature refrigerants and the key heating point of the server are subjected to direct contact heat exchange, the heat of the server is conducted to the low-temperature refrigerants, the low-temperature refrigerants are changed into high-temperature refrigerants after being heated by the server, and the refrigeration of the server is completed;
the refrigerant liquid supply and return pipeline comprises a low-temperature refrigerant liquid supply and horizontal liquid separation main pipe and a high-temperature refrigerant liquid return and horizontal liquid separation main pipe which are arranged in a server cabinet body, wherein the vapor-liquid recovery utilizes the horizontal liquid separation main pipe and is used for realizing refrigerant liquid supply and return and refrigerant recovery according to the control of the centralized management device;
and the auxiliary matching unit is used for assisting in completing the limit and circuit connection of the server cabinet body.
In an exemplary embodiment of the present disclosure, the cabinet liquid cooling unit includes:
the server cell is used for assisting the air inlet and outlet electric heating system and the server cell monitoring system;
the server cell is used for placing a server and comprises a server cell sealing door, a server cell cavity, a server cell mounting guide rail and a limiting device, a refrigerant liquid supply pipe, a refrigerant spray head, a power supply plug-in port, an air inlet and an air outlet, wherein the server is a server with a server shell removed, and the refrigerant spray head is aligned with a key heating point of the server and is used for directly spraying low-temperature refrigerant in the refrigerant pipe to the key heating point of the server to finish the refrigeration of the server;
the auxiliary air inlet and outlet electric heating unit comprises an air inlet, an air inlet electric heating device, an air outlet, a valve and an exhaust fan, and is used for preventing refrigerant from vaporizing and dissipating when the system is operated or overhauled;
the server cell monitoring unit comprises a collecting device and an executing device, and is used for collecting the operation load, temperature, refrigerant liquid supply and return flow rate, refrigerant liquid supply and return temperature rise, refrigerant dissipation monitoring data and auxiliary air intake and exhaust electric heating system operation parameters of the server, uploading the operation parameters to the centralized management device and executing instructions according to the control of the centralized management device.
In an exemplary embodiment of the disclosure, the server cell is provided with an inclination angle with respect to the installation ground, so that the collection speed of the high-temperature refrigerant after spraying can be increased.
In an exemplary embodiment of the disclosure, the mounting rail and the limiting device of the server cell are provided with power interfaces, after the server is pushed into the cavity of the server cell through the mounting rail, the power clamping is automatically completed, and the coolant spray head is also automatically aligned to a key heating part of the server.
In an exemplary embodiment of the present disclosure, the server cell is a two-layer sealing structure, preventing the refrigerant from dissipating:
under the action of dead weight of the server, the end part of the server is sealed with the cavity of the server cell to form a first layer of seal;
the server cell is provided with a sealing door which is closed after the connection of the server optical fiber and the network is completed, and the second layer of sealing is completed.
In an exemplary embodiment of the disclosure, the number of the cabinet liquid cooling units is set according to system requirements, and the plurality of cabinet liquid cooling units may share the same refrigerant liquid supply and return pipeline and auxiliary matching units.
In one aspect of the disclosure, a method for controlling on-line pluggable cabinet-level spray liquid cooling is provided, including:
a parameter acquisition step, namely acquiring operation load of a server, temperature, refrigerant liquid supply and return flow rate, refrigerant liquid supply and return temperature rise, refrigerant dissipation monitoring data, and operation parameters of an air inlet and outlet and auxiliary electric heating device of the server by a server cell monitoring unit;
a centralized management step of analyzing the server data collected by the server cell monitoring unit, calculating the optimal operation mode of the system according to a preset algorithm, and sending the optimal operation mode to the server cell monitoring unit;
and a cooling control step, wherein the pressure of each refrigerant circulating pump and the pressure of a refrigerant liquid supply and return pipeline are controlled according to the optimal operation mode of the system, so that the control of the refrigerant ejection quantity of the refrigerant nozzle of each server is realized, and the control of the online plug cabinet-level spraying liquid cooling system is further realized.
In an exemplary embodiment of the present disclosure, the method further comprises:
a dissipation prevention control step, when the system operates normally and the dissipation of the refrigerant is detected by the monitoring unit of the server cell, an exhaust port, a valve and an exhaust fan are opened, so that negative pressure is formed in the server cell, and the dissipation of the refrigerant is prevented;
and in the maintenance control step, when the system is overhauled, the air inlet electric heating device, the air outlet and the exhaust fan are opened, so that high-temperature convection air continuously passes through the server, the vaporization of the residual liquid refrigerant on the server is accelerated, and the waste of the refrigerant during overhauling is reduced.
The online plug rack level sprays liquid cooling system of this disclosure includes: the server cabinet body, the refrigerant external circulation device, the centralized management device; the server cabinet body is divided into a plurality of cabinet liquid cooling units, and the cooling of the server is completed through the contact of a refrigerant with the key heating points; the refrigerant external circulation device is used for intensively storing liquid refrigerants into the refrigerant liquid storage tank, regulating the pressure of a refrigerant pipe through the refrigerant circulating pump, and conveying low-temperature refrigerants into the server cabinet body to complete refrigerant circulation; the centralized management device is used for receiving the working state parameters of the servers collected by the collection device, calculating the refrigeration requirement of key heating points of each server through a preset algorithm, and controlling the refrigerant circulating pump and the circulating fan to control the system. On one hand, the server cooling system based on online plugging cabinet-level spray liquid cooling solves the problem of risk-free low-cost online plugging of the liquid cooling system, and has the advantages of strong adaptability and low arrangement cost; on the other hand, the online pluggable cabinet-level spray liquid cooling system does not need to customize a server, and any existing manufacturer server product can be applied to the refrigerating system; in still another aspect, the online plug cabinet stage spray liquid cooling system has the advantages of less refrigerant, low total cost of ownership and initial investment, capability of supporting unlimited times of online plug operation, no liquid leakage and no refrigerant dissipation during operation, no risk during online plug operation, and low running cost.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The above and other features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
FIG. 1 illustrates a block diagram of an on-line pluggable cabinet level spray liquid cooling system in accordance with an exemplary embodiment of the present disclosure;
FIG. 2 illustrates a schematic diagram of an on-line pluggable cabinet level spray liquid cooling system in accordance with an exemplary embodiment of the present disclosure;
FIG. 3 illustrates a one-strip schematic diagram of an on-line pluggable cabinet level spray liquid cooling system in accordance with an exemplary embodiment of the present disclosure;
FIG. 4 illustrates an overall schematic diagram of an on-line pluggable cabinet level spray liquid cooling system in accordance with an exemplary embodiment of the present disclosure;
fig. 5 illustrates a flow chart of a control method for online pluggable cabinet level spray liquid cooling in accordance with an exemplary embodiment of the present disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the disclosed aspects may be practiced without one or more of the specific details, or with other methods, components, materials, devices, steps, etc. In other instances, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.
The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, these functional entities may be implemented in software, or in one or more software-hardened modules, or in different networks and/or processor devices and/or microcontroller devices.
In the embodiment, an online pluggable cabinet-level spray liquid cooling system is provided first; referring to fig. 1, the on-line pluggable cabinet stage spray liquid cooling system may include the following devices:
the system comprises a server cabinet body 110, a refrigerant external circulation device 120 and a centralized management device 130;
the server cabinet body 110 comprises a cabinet liquid cooling unit, a refrigerant liquid supply and return pipeline and an auxiliary matching unit, wherein the main body of the server cabinet body is divided into a plurality of cabinet liquid cooling units, and each cabinet liquid cooling unit independently operates; the server cabinet body is contacted with key heating points through a refrigerant to finish the refrigeration of the server;
the refrigerant external circulation device 120 comprises a refrigerant circulation pump, a refrigerant liquid storage tank, a plate heat exchanger and a refrigerant pipe, and is used for intensively storing liquid refrigerant into the refrigerant liquid storage tank, regulating the pressure of the refrigerant pipe through the refrigerant circulation pump according to the control of the centralized management device, and conveying low-temperature refrigerant in the refrigerant liquid storage tank into a server cabinet body to complete refrigerant circulation;
the centralized management device 130 is respectively connected with the acquisition device and the refrigerant external circulation device, and is used for receiving the working state parameters of the servers acquired by the acquisition device, calculating the refrigeration requirement of key heating points of each server through a preset algorithm, and controlling the refrigerant circulation pump and the circulation fan to realize the control of the online plug cabinet-level spray liquid cooling system.
The online plug rack level sprays liquid cooling system of this disclosure includes: the server cabinet body, the refrigerant external circulation device, the centralized management device; the server cabinet body is divided into a plurality of cabinet liquid cooling units, and the cooling of the server is completed through the contact of a refrigerant with the key heating points; the refrigerant external circulation device is used for intensively storing liquid refrigerants into the refrigerant liquid storage tank, regulating the pressure of a refrigerant pipe through the refrigerant circulating pump, and conveying low-temperature refrigerants into the server cabinet body to complete refrigerant circulation; the centralized management device is used for receiving the working state parameters of the servers collected by the collection device, calculating the refrigeration requirement of key heating points of each server through a preset algorithm, and controlling the refrigerant circulating pump and the circulating fan to control the system. On one hand, the server cooling system based on online plugging cabinet-level spray liquid cooling solves the problem of risk-free low-cost online plugging of the liquid cooling system, and has the advantages of strong adaptability and low arrangement cost; on the other hand, the online pluggable cabinet-level spray liquid cooling system does not need to customize a server, and any existing manufacturer server product can be applied to the refrigerating system; in still another aspect, the online plug cabinet stage spray liquid cooling system has the advantages of less refrigerant, low total cost of ownership and initial investment, capability of supporting unlimited times of online plug operation, no liquid leakage and no refrigerant dissipation during operation, no risk during online plug operation, and low running cost.
Next, the online plug cabinet-level spray liquid cooling system in this exemplary embodiment will be further described. Referring to fig. 2, the on-line pluggable cabinet stage spray liquid cooling system 100 may include: the system comprises a server cabinet body 110, a refrigerant external circulation device 120 and a centralized management device 130. Wherein:
the server cabinet body 110 comprises a cabinet liquid cooling unit, a refrigerant liquid supply and return pipeline and an auxiliary matching unit, wherein the main body of the server cabinet body is divided into a plurality of cabinet liquid cooling units, and each cabinet liquid cooling unit independently operates; and the cooling of the server is completed by contacting the key heating points in the server cabinet body through the refrigerant.
In an embodiment of the present example, the server cabinet includes:
the equipment cabinet comprises a cabinet liquid cooling unit, a refrigerant liquid supply and return pipeline and an auxiliary matching unit;
the cabinet liquid cooling unit comprises a server cell, an auxiliary air inlet and outlet electric heating system and a server cell monitoring system, wherein in the server cell, liquid refrigerants conveyed by a refrigerant liquid supply pipeline are sprayed out by a refrigerant spray head in the server cell to aim at a key heating point of a server, so that the low-temperature refrigerants and the key heating point of the server are subjected to direct contact heat exchange, the heat of the server is conducted to the low-temperature refrigerants, the low-temperature refrigerants are changed into high-temperature refrigerants after being heated by the server, and the refrigeration of the server is completed;
the refrigerant liquid supply and return pipeline comprises a low-temperature refrigerant liquid supply and horizontal liquid separation main pipe arranged in a server cabinet body, and a high-temperature refrigerant liquid return and horizontal liquid separation main pipe, wherein the vapor-liquid recovery utilization horizontal liquid separation main pipe is used for realizing refrigerant liquid supply and return and refrigerant recovery according to the control of the centralized management device. The cooling medium liquid supply and return pipeline system of the server cabinet body is used for guaranteeing liquid supply, liquid return and vapor-liquid recycling pipes of the liquid cooling unit module of the server cabinet. The refrigerant liquid supply and return pipeline system comprises a low-temperature refrigerant liquid supply horizontal liquid separation main pipe, a high-temperature refrigerant liquid return horizontal liquid separation main pipe and a vapor-liquid recovery utilization horizontal liquid separation main pipe, wherein the main pipes are arranged in a cabinet body of the cabinet and are respectively connected with different cabinet liquid cooling unit modules through liquid separation branch pipes, and the effects of liquid supply and return and liquid recovery are realized under the action of the centralized management platform.
And the auxiliary matching unit is used for assisting in completing the limit and circuit connection of the server cabinet body.
In an embodiment of the present example, the cabinet liquid cooling unit includes:
the server cell is used for assisting the air inlet and outlet electric heating system and the server cell monitoring system;
the server cell is used for placing a server and comprises a server cell sealing door, a server cell cavity, a server cell mounting guide rail and a limiting device, a refrigerant liquid supply pipe, a refrigerant spray head, a power supply plug-in port, an air inlet and an air outlet, wherein the server is a server with a server shell removed, the refrigerant spray head is aligned with a key heating point of the server and is used for directly spraying low-temperature refrigerant in the refrigerant pipe to the key heating point of the server to finish the refrigeration of the server.
In the embodiment of the present example, the server cell is used as a liquid cooling generator, the low-temperature refrigerant conveyed by the refrigerant liquid supply pipeline system is sprayed out by the refrigerant spray head in the server cell to the key heating point of the server, so that the low-temperature liquid refrigerant and the key heating point of the server perform direct contact heat exchange, the heat of the server is conducted to the low-temperature refrigerant, the low-temperature refrigerant is heated by the server and then becomes a high-temperature refrigerant, the server cell is designed to be installed obliquely to the ground, so that the sprayed refrigerant is beneficial to be quickly collected in one place, and then conveyed to the external circulation system through the refrigerant liquid return pipeline at the lower end of the server cell, so that the heat of the server is led out of the cabinet, and the heat is dissipated to the atmosphere through the external circulation system. The server cell is composed of a server cell sealing door, a server cell cavity, a server cell mounting guide rail, a limiting device, a refrigerant liquid supply pipe, a spray head, a power supply plug-in port, an air inlet, an air outlet and the like. The server of any manufacturer removes the server shell and the fan, opens the sealing door of the server cell, and can be pushed into the cavity of the server cell through the general guide rail and the limiting device of the server cell; after the power supply is pushed in place, the power supply of the server can be automatically clamped with a power supply plug-in interface of a server cell, so that the electrical connection is completed; the coolant supply pipe and the spray head point in the server cell are also automatically aligned with key heating points such as CPU, GPU, memory and the like pushed into the server, so that the butt joint of liquid cooling spray positions is automatically realized; the server cell is designed to be inclined with the ground, the server is pushed into the installation position, the end part of the server can be tightly sealed with the opening of the server cell under the action of dead weight of the server, the sealing of the cavity of the server cell is automatically realized, the sealing door of the server cell is closed for secondary sealing after the optical fiber and the network connection of the server are completed, and thus the sealing of the server cell is completely realized.
In the embodiment of the example, the auxiliary air inlet and outlet electric heating unit comprises an air inlet, an air inlet electric heating device, an air outlet, a valve and an exhaust fan, and is used for preventing refrigerant from vaporizing and dissipating when the system is operated or overhauled. The auxiliary air inlet and outlet electric heating system of the server cell is used as an auxiliary means for preventing the refrigerant from dissipating, so that the refrigerant cannot dissipate through vaporization when the system is operated or overhauled. The auxiliary air inlet and outlet heating system for the server cell consists of an air inlet, an air inlet electric heating device, an air outlet, a valve, an exhaust fan and the like. When the server cell monitoring sensor detects that the refrigerant is dissipated through other components, the exhaust port, the valve and the exhaust fan are opened, the server air inlet is not opened or is very small in opening, the server cell is specifically judged according to server monitoring platform data, the server cell is exhausted, negative pressure is formed in the server cell, air outside the server cell can only enter the server cell, the problem that the gas in the server cell runs out of the server cell can not occur, and the vaporized refrigerant can be limited to escape. Under maintenance state, the server stops the power-off, at this moment, through opening the air inlet, open the electric heater unit that admits air, open gas vent and exhaust fan, make in the server last through high temperature convection air, the vaporization of remaining liquid refrigerant on the acceleration server, the refrigerant after the vaporization is discharged outside the liquid cooling cell by the exhaust fan, through refrigerant gas-liquid separation unit, the refrigerant is separated again, assemble in refrigerant return liquid pipe collection and utilization, so will reduce the waste of refrigerant when overhauling furthest.
The server cell monitoring unit comprises a collecting device and an executing device, and is used for collecting the operation load, temperature, refrigerant liquid supply and return flow rate, refrigerant liquid supply and return temperature rise, refrigerant dissipation monitoring data and auxiliary air intake and exhaust electric heating system operation parameters of the server, uploading the operation parameters to the centralized management device and executing instructions according to the control of the centralized management device. The server cell monitoring system is used as a centralized management system terminal information acquisition, monitoring and display platform, and is used for acquiring the running load, temperature rise and refrigerant supply and return flow rate of each part of the server in real time, supplying and returning liquid temperature rise and refrigerant dissipation monitoring data of the refrigerant, feeding and exhausting the operation parameters of the auxiliary electric heating device of the server cell, transmitting the operation parameters back to the centralized management system, dynamically displaying the key parameters of the server cell, executing the running instructions of the centralized management system and the like.
In the embodiment of the present example, the server chamber is provided with an inclination angle with respect to the installation ground, so that the collection speed of the high-temperature refrigerant after spraying can be increased.
In this example embodiment, the mounting rail and the limiting device of the server cell are provided with power interfaces, and after the server is pushed into the cavity of the server cell through the mounting rail, the power connection is automatically completed, and the coolant spray head is also automatically aligned to the key heating part of the server.
In the embodiment of the present example, the server cell has a two-layer sealing structure, preventing the refrigerant from dissipating:
under the action of dead weight of the server, the end part of the server is sealed with the cavity of the server cell to form a first layer of seal;
the server cell is provided with a sealing door which is closed after the connection of the server optical fiber and the network is completed, and the second layer of sealing is completed.
In this example embodiment, the number of the cabinet liquid cooling units is set according to the system requirement, and the plurality of cabinet liquid cooling units may share the same refrigerant liquid supply and return pipeline and auxiliary matching units. Fig. 3 shows a schematic diagram of a spray liquid cooling system of an on-line pluggable cabinet stage.
The refrigerant external circulation device 120 comprises a refrigerant circulation pump, a refrigerant storage tank, a plate heat exchanger and refrigerant pipes, and is used for intensively storing liquid refrigerant into the refrigerant storage tank, regulating the pressure of the refrigerant pipes through the refrigerant circulation pump according to the control of the centralized management device, and conveying low-temperature refrigerant in the refrigerant storage tank into a server cabinet body to complete refrigerant circulation.
In the embodiment of the example, the external circulation system mainly comprises a refrigerant circulation pump, a refrigerant liquid storage tank, a plate heat exchanger, a refrigerant gas-liquid separator, a refrigerant pipe and the like, the refrigerant circulation pump and the refrigerant liquid storage tank regulate and balance the pressure of the refrigerant pipe under the control of the centralized management system, the refrigerant spraying quantity is controlled, a continuous circulation process from low temperature to high temperature to low temperature of the refrigerant is accurately completed, the refrigerant gas-liquid separator and a matched pipeline are matched with an auxiliary air inlet and outlet electric heating system of a server cell, and refrigerant recovery in the air exhaust of the cabinet liquid cooling unit module in the operation and maintenance process is completed, so that the refrigerant dissipation is avoided.
The centralized management device 130 is respectively connected with the acquisition device and the refrigerant external circulation device, and is used for receiving the working state parameters of the servers acquired by the acquisition device, calculating the refrigeration requirement of key heating points of each server through a preset algorithm, and controlling the refrigerant circulation pump and the circulation fan to realize the control of the online plug cabinet-level spray liquid cooling system.
In the embodiment of the present example, the centralized management system serves as a control center of the system, collects data of the monitoring modules on the single cabinet liquid cooling unit module, analyzes and processes the single data, dynamically monitors the single data in real time, calculates an optimal operation mode of the system, presents system alarm information and processing measures, and executes the optimal control measures through the monitoring modules on the single cabinet liquid cooling unit module.
In the embodiment of the example, in the daily operation process, the working state of the server is collected, the temperature of the CPU, the GPU and the memory of the key heating point of the server rises, the liquid return temperature of the refrigerant is supplied, the temperature of the small chamber of the server, the dissipation of the refrigerant, the electric energy parameters, the quality and other parameters are dynamically adjusted, and the refrigerant circulating pump and the refrigerant spraying quantity are dynamically adjusted to accurately control the refrigerating system; starting monitoring of liquid dissipation, alarming in real time when liquid dissipation is detected, and simultaneously starting an auxiliary air inlet and outlet electric heating system of a server cell and a refrigerant gas-liquid separator to treat the refrigerant dissipation so as to avoid the refrigerant dissipation; and in a fault or overhauling state, starting an alarm, completing the power-off shutdown process of the server, starting an auxiliary air inlet and outlet electric heating system of a small chamber of the server, starting a refrigerant gas-liquid separator, and completing the vaporization recovery process of the residual refrigerant of the server.
In this exemplary embodiment, as shown in fig. 4, the overall schematic diagram of the on-line pluggable cabinet-level spray liquid cooling system is shown, where a server cabinet is cut into a plurality of completely independent cabinet liquid cooling unit modules according to a U-bit space installed by the server, and each cabinet liquid cooling unit module operates independently, is controlled independently, and does not interfere with each other. Each cabinet liquid cooling unit module is provided with an independent server cell, a server cell cavity, a server cell mounting guide rail and a limiting device, each server cell is designed according to the width of a standard 19-inch cabinet, the U-position space of the server cell can be flexibly adjusted according to the size of the U-position space occupied by the mounted server, after the server shell and the fan of any manufacturer are removed, the server can be pushed into the server cell cavity to be mounted in place through the universal server cell guide rail and the limiting device, and after the server power is pushed into place, the server power can be automatically clamped with a server cell power plug interface to complete electric connection; the installation mode is simple and reliable, can be suitable for all servers in the existing market, and the servers do not need to be customized and modified.
In the embodiment of the present example, since in the pressurized operation system of the quick connector in the prior art, in the process of multiple plugging and unplugging of any form of quick connector, the problem that the operation safety of the server is affected due to the fact that refrigerant or other liquid is inevitably generated, in addition, after the quick connector is plugged and unplugged for multiple times under pressure, the service life of the quick connector is greatly reduced, and the risk factor of leakage in the operation process is gradually increased. The online plugging of the server only needs to disconnect the electrical connection, the liquid cooling liquid supply valve is closed, and the safety times of the electrical plugging and the valve switching are all over thousands, so that the online plugging process of the system cannot influence the system performance, and after the online plugging is carried out for many times, no hidden danger exists in safety.
In the embodiment of the example, through the centralized management system, the refrigerant pump is adjusted, the pressure in the liquid supply pipe is changed, the circulation speed of the refrigerant is adjusted, the accurate adjustment of refrigerant spraying is realized, the fact that the liquid refrigerant only has a thin liquid flow surface on a key heating component of the server is ensured, the usage amount of the refrigerant is greatly reduced, the usage amount of the refrigerant can be reduced to be several tenths of that of an immersed liquid cooling scheme, and the primary investment cost of the system is greatly reduced.
The specific details of the device modules of the online plug cabinet stage spray liquid cooling systems are described in detail in the corresponding online plug cabinet stage spray liquid cooling systems, so that the details are not repeated here.
It should be noted that although several modules or units of the on-line pluggable enclosure-level spray liquid cooling system 100 are mentioned in the above detailed description, such partitioning is not mandatory. Indeed, the features and functions of two or more modules or devices described above may be embodied in one module or device in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or device described above may be further divided into a plurality of modules or devices to be embodied.
In addition, in the embodiment of the present example, a control method for online plug-in cabinet stage spray liquid cooling is also provided. Referring to fig. 5, the control method includes:
a parameter collection step S510, wherein the server operation load, the temperature, the refrigerant liquid supply and return flow rate, the refrigerant liquid supply and return temperature rise, the refrigerant dissipation monitoring data, the operation parameters of the air inlet and outlet of the server cell and the auxiliary electric heating device are collected through the server cell monitoring unit;
a centralized management step S520, wherein server data collected by the server cell monitoring unit are analyzed, and a system optimal operation mode is calculated according to a preset algorithm and is sent to the server cell monitoring unit;
and a cooling control step S530, wherein the pressure of each refrigerant circulating pump and the pressure of each refrigerant liquid supply and return pipeline are controlled according to the optimal operation mode of the system, so that the control of the refrigerant ejection quantity of the refrigerant nozzle of each server is realized, and the control of the online plug cabinet-level spray liquid cooling system is further realized.
In an embodiment of the present example, the method further comprises:
a dissipation prevention control step, when the system operates normally and the dissipation of the refrigerant is detected by the monitoring unit of the server cell, an exhaust port, a valve and an exhaust fan are opened, so that negative pressure is formed in the server cell, and the dissipation of the refrigerant is prevented;
and in the maintenance control step, when the system is overhauled, the air inlet electric heating device, the air outlet and the exhaust fan are opened, so that high-temperature convection air continuously passes through the server, the vaporization of the residual liquid refrigerant on the server is accelerated, and the waste of the refrigerant during overhauling is reduced.
It should be noted that although the steps of the methods of the present disclosure are illustrated in the accompanying drawings in a particular order, this does not require or imply that the steps must be performed in that particular order or that all of the illustrated steps be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.
Furthermore, the above-described drawings are only schematic illustrations of processes included in the method according to the exemplary embodiment of the present invention, and are not intended to be limiting. It will be readily appreciated that the processes shown in the above figures do not indicate or limit the temporal order of these processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, for example, among a plurality of modules.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (7)
1. An on-line pluggable cabinet level spray liquid cooling system, the system comprising:
the server cabinet body, the refrigerant external circulation device, the centralized management device;
the server cabinet body comprises a cabinet liquid cooling unit, a refrigerant liquid supply and return pipeline and an auxiliary matching unit, wherein the server cabinet body is divided into a plurality of cabinet liquid cooling units, and each cabinet liquid cooling unit independently operates; the server cabinet body is contacted with key heating points through a refrigerant to finish the refrigeration of the server; the cabinet liquid cooling unit comprises a server cell, an auxiliary air inlet and outlet electric heating system and a server cell monitoring system, wherein in the server cell, liquid refrigerants conveyed by a refrigerant liquid supply pipeline are sprayed out by a refrigerant spray head in the server cell to aim at a key heating point of a server, so that the low-temperature refrigerants and the key heating point of the server are subjected to direct contact heat exchange, the heat of the server is conducted to the low-temperature refrigerants, the low-temperature refrigerants are changed into high-temperature refrigerants after being heated by the server, and the refrigeration of the server is completed; the server cell is used for placing a server and comprises a server cell sealing door, a server cell cavity, a server cell mounting guide rail and a limiting device, a refrigerant liquid supply pipe, a refrigerant spray head, a power supply plug-in port, an air inlet and an air outlet, wherein the server is a server with a server shell removed, and the refrigerant spray head is aligned with a key heating point of the server and is used for directly spraying low-temperature refrigerant in the refrigerant pipe to the key heating point of the server to finish the refrigeration of the server; the auxiliary air inlet and outlet electric heating system comprises an air inlet, an air inlet electric heating device, an air outlet, a valve and an exhaust fan, and is used for preventing refrigerant from vaporizing and dissipating when the system is operated or overhauled; the server cell monitoring system comprises an acquisition device and an execution device, wherein the acquisition device is used for acquiring the operation load, temperature, refrigerant liquid supply and return flow rate, refrigerant liquid supply and return temperature rise, refrigerant dissipation monitoring data and auxiliary air intake and exhaust electric heating system operation parameters of the server, uploading the operation parameters to a centralized management device, and controlling a refrigerant liquid supply and return pipeline according to a control execution instruction of the centralized management device, wherein the refrigerant liquid supply and return pipeline comprises a low-temperature refrigerant liquid supply horizontal liquid separation main pipe arranged in a server cabinet body, a high-temperature refrigerant liquid return horizontal liquid separation main pipe, and a vapor-liquid recovery utilization horizontal liquid separation main pipe, and is used for realizing refrigerant liquid supply and return and refrigerant recovery according to the control of the centralized management device; the auxiliary matching unit is used for assisting in completing limit and line connection of the server cabinet body;
the refrigerant external circulation device comprises a refrigerant circulation pump, a refrigerant liquid storage tank, a plate heat exchanger and refrigerant pipes, wherein the refrigerant liquid is concentrated and stored in the refrigerant liquid storage tank, the pressure of the refrigerant pipes is regulated by the refrigerant circulation pump according to the control of the concentrated management device, and the low-temperature refrigerant in the refrigerant liquid storage tank is conveyed into a server cabinet body to complete refrigerant circulation;
and the centralized management device is respectively connected with the acquisition device and the refrigerant external circulation device, and is used for receiving the working state parameters of the servers acquired by the acquisition device, calculating the refrigeration requirement of key heating points of each server through a preset algorithm, and controlling the refrigerant circulation pump and the circulation fan to realize the control of the online plug cabinet-level spray liquid cooling system.
2. The system of claim 1, wherein the server cells are provided with an oblique angle relative to the installation floor to increase the rate of collection of high temperature refrigerant after spraying.
3. The system of claim 1, wherein the mounting rail and the limiting device of the server cell are provided with power interfaces, and the power clamping is automatically completed after the server is pushed into the cavity of the server cell through the mounting rail, and the coolant spray head is also automatically aligned to the key heating part of the server.
4. The system of claim 1, wherein the server cell is a two-layer seal structure that prevents refrigerant dissipation:
under the action of dead weight of the server, the end part of the server is sealed with the cavity of the server cell to form a first layer of seal;
the server cell is provided with a sealing door which is closed after the connection of the server optical fiber and the network is completed, and the second layer of sealing is completed.
5. The system of claim 1, wherein the number of the cabinet liquid cooling units is set according to system requirements, and the plurality of cabinet liquid cooling units can share the same refrigerant liquid supply and return pipeline and auxiliary matching units.
6. A control method for using the on-line pluggable cabinet spray liquid cooling system according to any one of claims 1-5, the method comprising:
a parameter acquisition step, namely acquiring operation load of a server, temperature, refrigerant liquid supply and return flow rate, refrigerant liquid supply and return temperature rise, refrigerant dissipation monitoring data, and operation parameters of an air inlet and outlet and auxiliary electric heating device of the server by a server cell monitoring unit;
a centralized management step of analyzing the server data collected by the server cell monitoring unit, calculating the optimal operation mode of the system according to a preset algorithm, and sending the optimal operation mode to the server cell monitoring unit;
and a cooling control step, wherein the pressure of each refrigerant circulating pump and the pressure of a refrigerant liquid supply and return pipeline are controlled according to the optimal operation mode of the system, so that the control of the refrigerant ejection quantity of the refrigerant nozzle of each server is realized, and the control of the online plug cabinet-level spraying liquid cooling system is further realized.
7. The control method according to claim 6, characterized in that the method further comprises:
a dissipation prevention control step, when the system operates normally and the dissipation of the refrigerant is detected by the monitoring unit of the server cell, an exhaust port, a valve and an exhaust fan are opened, so that negative pressure is formed in the server cell, and the dissipation of the refrigerant is prevented;
and in the maintenance control step, when the system is overhauled, the air inlet electric heating device, the air outlet and the exhaust fan are opened, so that high-temperature convection air continuously passes through the server, the vaporization of the residual liquid refrigerant on the server is accelerated, and the waste of the refrigerant during overhauling is reduced.
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