CN212013361U

CN212013361U - Online plugging cabinet level spraying liquid cooling system

Info

Publication number: CN212013361U
Application number: CN201921556417.0U
Authority: CN
Inventors: 吴玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-11-24
Anticipated expiration: 2029-09-17

Abstract

The utility model relates to an online plug rack level sprays liquid cooling system. Wherein, this system includes: the server cabinet body, the refrigerant external circulation device and the centralized management device; a plurality of cabinet liquid cooling units are divided from the server cabinet body, and refrigeration 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, adjusting the pressure of a refrigerant pipe through a refrigerant circulating pump, and conveying low-temperature refrigerants into the cabinet body of the server cabinet to complete refrigerant circulation; and the centralized management device is used for receiving the working state parameters of the servers collected by the collection device, calculating the refrigeration requirements of key heating points of each server through a preset algorithm, and controlling the refrigerant circulating pump and the circulating fan to realize the control of the system. The utility model discloses liquid cooling system has strong adaptability, arranges advantage with low costs.

Description

Online plugging cabinet level spraying liquid cooling system

Technical Field

The utility model relates to an electric field particularly, relates to an online plug rack level sprays liquid cooling system.

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 increased sharply, and according to IDC statistics, the global data stock reaches 16ZB in 2016, and is expected to increase to more than 40ZB in 2020, and 2025 years or up to 160 ZB. The data volume is increased rapidly, the global cloud computing industry is developed rapidly, and the data center IDC is directly benefited as an IT bottom infrastructure.

At present, the power consumption of the Chinese data center is increased by more than 12% for eight years continuously, the total power consumption is estimated to reach 2962 hundred million kilowatts in 2020, the number of the Chinese data centers is over 40 ten thousand according to the expression of the national green data center trial work scheme, the annual power consumption is over 1.5% of the power consumption of the whole society, and most of the data centers PUE are still generally higher, so that the reduction of the data centers PUE has great significance for energy conservation and consumption reduction in China.

At present, mainstream data center mainly cools down data center computer lab through cold wind heat transfer form with mechanical refrigeration mode, and this kind of mechanical refrigeration mode, the energy consumption is high all the time, and along with single rack power density increases gradually to 10KW or higher power density in addition, traditional air-cooled refrigeration mode has been unable to satisfy the demand.

The liquid cooling heat dissipation mode comes from the birth, the principle is that the refrigerant is directly or indirectly contacted with the server, the heat of the server is taken away through heat exchange, the liquid cooling server and the heat dissipation system thereof can not only solve the problem of a high-density server with the power consumption of 20KW or more, but also reduce the power consumption of a server heat dissipation air conditioner to the level which can not be reached by the traditional air conditioning scheme, and are one of the best schemes for solving the high density of a data center in China and saving energy and reducing consumption.

At present, two main research directions of a liquid cooling server heat dissipation system are a cold plate type liquid cooling server and an immersed type liquid cooling server. The immersed liquid cooling server scheme is that a refrigerant is utilized to directly immerse the server, and heat is taken away through circulating the refrigerant; the cold plate liquid cooling server scheme utilizes the form of backplate paster, contacts backplate paster and the key heat dissipation point of server, and the heat is taken away in the circulation through the indirect mode of contact of refrigerant. However, these liquid solutions have many problems in 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 the server (reform the server, add a precision back plate and an expensive self-sealing quick connector), but also need a server manufacturer to completely change the existing product form, produce a new server product to match the existing refrigeration system, and have poor applicability, and the liquid cooling system has numerous movable connector points (at least 2 for each server), high online plugging risk, and serious leakage risk.

The system also has an immersed liquid cooling system, the server is completely immersed by the refrigerant, the refrigerant consumption is excessive, the initial investment cost CAPEX is extremely high, the phenomenon of large amount of evaporation and dissipation of the refrigerant exists during operation and maintenance, the operation cost OPEX is also extremely high, if frequent online plugging and unplugging operations are carried out, the operation cost OPEX is further increased, and the TCO total cost of the liquid cooling system is extremely high and has no application value.

How to solve the server adaptability problem that present liquid cooling system relates to, the online plug-in problem of risk-free low cost, total cost of ownership TCO high cost problem becomes a problem that remains to be solved.

It should be noted that the information of the present invention in the above background section is only for enhancing the understanding of the background of the present invention, 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 utility model is to provide an online plug rack level sprays liquid cooling system, and then overcomes one or more problems that lead to because the restriction of correlation technique and defect to a certain extent at least.

According to an aspect of the utility model provides an online plug rack level sprays liquid cooling system, include:

the server cabinet body, the refrigerant external circulation device and the centralized management device;

the server cabinet body comprises cabinet liquid cooling units, a refrigerant supply and return pipeline and auxiliary matching units, 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 operates independently; the server cabinet body completes refrigeration of the server through refrigerant contact key heating points;

the refrigerant external circulation device comprises a refrigerant circulating pump, a refrigerant liquid storage tank, a plate type heat exchanger and a refrigerant pipe, and is used for intensively storing liquid refrigerants into the refrigerant liquid storage tank, regulating the pressure of the refrigerant pipe through the refrigerant circulating pump according to the control of the centralized management device, and conveying low-temperature refrigerants in the refrigerant liquid storage tank into the cabinet body of the server cabinet 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 requirements of key heating points of each server through a preset algorithm and controlling the refrigerant circulating pump and the circulating fan to realize the control of the online plugging and unplugging cabinet-level spraying liquid cooling system.

In an exemplary embodiment of the present invention, the server cabinet body includes:

the equipment cabinet liquid cooling unit, the refrigerant supply and return pipeline and the auxiliary matching unit;

the equipment 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, a liquid refrigerant conveyed by a refrigerant supply pipeline is sprayed out by aligning a low-temperature refrigerant to a key heating point of the server through a refrigerant sprayer in the server cell, so that the low-temperature refrigerant and the key heating point of the server are subjected to direct contact heat exchange, the heat of the server is transferred to the low-temperature refrigerant, and the low-temperature refrigerant is heated by the server and then becomes a high-temperature refrigerant, so that the server refrigeration is completed;

the refrigerant supply and return pipeline comprises a low-temperature refrigerant supply horizontal liquid separation main pipe, a high-temperature refrigerant return horizontal liquid separation main pipe and a vapor-liquid recycling horizontal liquid separation main pipe which are arranged in the cabinet body of the server cabinet, and is used for realizing refrigerant supply and return and refrigerant recycling according to the control of the centralized management device;

and the auxiliary matching unit is used for assisting in completing the limiting and line connection of the cabinet body of the server cabinet.

In an exemplary embodiment of the present invention, the cabinet liquid cooling unit includes:

the server cubicle is used for assisting in air intake and exhaust of the electric heating system and is used for monitoring the system;

the server is a server with a server shell removed, and the refrigerant nozzle is aligned to a key heating point of the server and used for directly spraying low-temperature refrigerant in the refrigerant pipe to the key heating point of the server to finish server refrigeration;

the auxiliary air inlet and exhaust electric heating unit comprises an air inlet, an air inlet electric heating device, an air exhaust port, a valve and an exhaust fan, and is used for preventing the refrigerant from vaporizing and dissipating when the system is operated or maintained;

the server chamber monitoring unit comprises a collecting device and an executing device, is used for collecting the operation load, the temperature, the refrigerant liquid supply and return flow speed, the refrigerant liquid supply and return temperature rise, the refrigerant dissipation monitoring data and the auxiliary air intake and exhaust electric heating system operation parameters of the server, uploads the operation parameters to the centralized management device, and executes instructions according to the control of the centralized management device.

In an exemplary embodiment of the present invention, the server chamber is provided with an inclination angle relative to the installation ground, so that the collecting speed of the high-temperature refrigerant after spraying can be increased.

The utility model discloses an in an exemplary embodiment, installation guide rail and stop device of server cell are provided with power source, will after the server pushed server cell cavity through the installation guide rail, accomplish the power joint automatically, the refrigerant shower nozzle also aims at the key position that generates heat of server automatically.

In an exemplary embodiment of the present invention, the server chamber is a two-layer sealing structure, which prevents the dissipation of the refrigerant:

under the action of the self weight of the server, the end part of the server is sealed with the chamber of the small chamber of the server to form a first layer of seal;

and the server chamber is provided with a sealing door, and after the connection between the server optical fiber and the network is completed, the sealing door is closed to complete the second layer of sealing.

The utility model discloses an in an exemplary embodiment, rack liquid cooling unit quantity sets up according to system's requirement, and a plurality of rack liquid cooling units can share same refrigerant liquid supply return line and supplementary supporting unit.

The utility model discloses online plug rack level sprays liquid cooling system includes: the server cabinet body, the refrigerant external circulation device and the centralized management device; a plurality of cabinet liquid cooling units are divided from the server cabinet body, and refrigeration 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, adjusting the pressure of a refrigerant pipe through a refrigerant circulating pump, and conveying low-temperature refrigerants into the cabinet body of the server cabinet to complete refrigerant circulation; and the centralized management device is used for receiving the working state parameters of the servers collected by the collection device, calculating the refrigeration requirements of key heating points of each server through a preset algorithm, and controlling the refrigerant circulating pump and the circulating fan to realize the control of the system. On one hand, the utility model discloses server cooling system based on online plug rack level spray liquid cooling has solved the liquid cooling system risk-free low-cost online plug problem, has strong adaptability, arranges advantage with low costs; on the other hand, the utility model discloses online plug cabinet level sprays the liquid cooling system and need not to customize the server, and server products of any producer can all be applied to the refrigerating system of the invention now; on the other hand, the on-line plugging cabinet-level spraying liquid cooling system needs less refrigerant, has low total cost and initial investment cost, can support unlimited times of on-line plugging operation, does not have liquid leakage or refrigerant dissipation during operation, has no risk during on-line plugging operation, and has low operation 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 invention as claimed.

Drawings

The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

Fig. 1 shows a block diagram of an online pluggable cabinet-level spray liquid cooling system according to an exemplary embodiment of the present invention;

fig. 2 shows a schematic diagram of an online pluggable cabinet-level spray liquid cooling system according to an exemplary embodiment of the present invention;

fig. 3 illustrates a one-to-many schematic diagram of an online pluggable cabinet-level spray liquid cooling system according to an exemplary embodiment of the present invention;

fig. 4 shows an overall schematic diagram of an online pluggable cabinet-level spray liquid cooling system according to an exemplary embodiment of the present invention;

fig. 5 shows a flowchart of a method for controlling online plugging/unplugging of cabinet-level spray liquid cooling according to an exemplary embodiment of the present invention.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different 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 example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, 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 provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, devices, steps, and so forth. 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 invention.

The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. That is, these functional entities may be implemented in the form of software, or in one or more software-hardened modules, or in different networks and/or processor devices and/or microcontroller devices.

In the embodiment of the present invention, firstly, an online plugging cabinet-level spraying liquid cooling system is provided; referring to fig. 1, the on-line pluggable cabinet-level spray liquid cooling system may include the following devices:

a server cabinet body 110, a refrigerant external circulation device 120, and a centralized management device 130;

the server cabinet body 110 comprises cabinet liquid cooling units, a refrigerant supply and return pipeline and auxiliary matching units, wherein a plurality of cabinet liquid cooling units are divided from the main body of the server cabinet body, and each cabinet liquid cooling unit operates independently; the server cabinet body completes refrigeration of the server through refrigerant contact key heating points;

the refrigerant external circulation device 120 comprises a refrigerant circulating pump, a refrigerant liquid storage tank, a plate heat exchanger and a refrigerant pipe, and is used for intensively storing liquid refrigerants into the refrigerant liquid storage tank, regulating the pressure of the refrigerant pipe through the refrigerant circulating pump according to the control of the centralized management device, and conveying low-temperature refrigerants in the refrigerant liquid storage tank into the cabinet body of the server cabinet to complete refrigerant circulation;

and 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 requirements of key heating points of the servers through a preset algorithm, and controlling the refrigerant circulating pump and the circulating fan to realize the control of the online plugging and unplugging cabinet-level spraying liquid cooling system.

Next, the on-line plugging cabinet-level spraying liquid cooling system in the present exemplary embodiment will be further described. Referring to fig. 2, the on-line pluggable cabinet-level spray liquid cooling system 100 may include: a server cabinet 110, a refrigerant external circulation device 120, and a centralized management device 130. Wherein:

the server cabinet body 110 comprises cabinet liquid cooling units, a refrigerant supply and return pipeline and auxiliary matching units, wherein a plurality of cabinet liquid cooling units are divided from the main body of the server cabinet body, and each cabinet liquid cooling unit operates independently; and the server is refrigerated by contacting key heating points with a refrigerant in the cabinet body of the server cabinet.

In an embodiment of this example, the server rack cabinet includes:

refrigerant supplies liquid return line, including arranging the low temperature refrigerant that the server rack cabinet body in supplies liquid level to divide the liquid main pipe, high temperature refrigerant returns liquid level and divides the liquid main pipe, vapour liquid recycle level divides the liquid main pipe for according to centralized management device's control, realize that the refrigerant supplies liquid return and refrigerant is retrieved. The server cabinet body refrigerant supply and return pipeline system is used for ensuring liquid supply, liquid return and vapor-liquid recycling pipes of the server cabinet liquid cooling unit module. Refrigerant supplies liquid return pipeline system includes that low temperature refrigerant supplies liquid level to divide liquid and is responsible for, and high temperature refrigerant returns liquid level and divides liquid and be responsible for, and vapour liquid recycle level divides liquid and is responsible for, and these are responsible for and arrange in the rack cabinet body, are connected with different rack liquid cooling unit module through dividing branch pipe respectively, under the effect of centralized management platform, realize supplying back liquid, the effect of liquid recovery.

In an embodiment of this example, the cabinet liquid cooling unit includes:

the server cell is used for placing a server and comprises a server cell sealing door, a server cell cavity, a server cell installation guide rail and a limiting device, a refrigerant liquid supply pipe, a refrigerant sprayer, a power supply socket, an air inlet and an air exhaust port, wherein the server is used for dismantling the server behind a server shell, the refrigerant sprayer is aligned with a key heating point of the server and used for directly spraying a low-temperature refrigerant in a refrigerant pipe to the key heating point of the server to finish server refrigeration.

In the embodiment of this example, the server cell is as the liquid cooling generator, the low temperature refrigerant that refrigerant feed pipe system carried over, aim at the server key point of generating heat blowout with the low temperature refrigerant through the refrigerant shower nozzle in the server cell, make low temperature liquid refrigerant and the key point of generating heat of server carry out the direct contact heat transfer, conduct the server heat to the low temperature refrigerant, the low temperature refrigerant is heated back by the server, become the high temperature refrigerant, the server cell design is for installing in the ground of slope, be favorable to the refrigerant after spraying to assemble in one department fast like this, the refrigerant return liquid pipeline of rethread server cell lower extreme carries to outer circulation system, so just derive the server heat outside the rack, the rethread outer circulation system gives off the heat to the atmosphere. The server cell comprises server cell sealing door, server cell cavity, server cell installation guide rail and stop device, refrigerant feed pipe and shower nozzle, power interface, air inlet and gas vent etc.. The server of any manufacturer is pushed into the server cubicle cavity through the universal server cubicle guide rail and the limiting device by detaching the shell and the fan of the server and opening the sealing door of the server cubicle; after the server is pushed in place, the server power supply can be automatically clamped with the power supply socket of the server chamber to complete electrical connection; refrigerant liquid supply pipes and nozzle points in the server small chamber are also automatically aligned to key heating points such as a CPU (central processing unit), a GPU (graphic processing unit), a memory and the like pushed into the server, and the butt joint of liquid cooling spraying positions is automatically realized; the server cell is designed to form an inclined angle with the ground, the server is pushed into the installation position, under the action of the dead weight of the server, the end part of the server can be tightly sealed with the port of the server cell, the cavity of the server cell is automatically sealed, the optical fiber and the network connection of the server are completed, the sealing door of the server cell is closed, secondary sealing is carried out, and therefore the sealing of the server cell is completely realized.

In the embodiment of the present example, the auxiliary air intake and exhaust electric heating unit includes an air intake, an air intake electric heating device, an air exhaust, a valve, and an exhaust fan, and is used to prevent the refrigerant from vaporizing and dissipating when the system is in operation or maintenance. The auxiliary air intake and exhaust electric heating system of the server chamber serves as an auxiliary means for preventing the refrigerant from dissipating, and the refrigerant cannot dissipate through vaporization when the system is operated or maintained. The auxiliary air inlet and outlet heating system for the server cubicle comprises an air inlet, an air inlet electric heating device, an air outlet, a valve, an exhaust fan and the like. At daily normal operating, server cell air inlet, the gas vent is all closed, when server cell monitoring sensor detects the refrigerant through other dissipations, the gas vent, valve and exhaust fan are opened, the server air inlet does not open or very little aperture, specifically judge according to server monitoring platform data, exhaust the server cell, make and form the negative pressure in the server cell, so, the air outside the server cell can only get into the server cell, and the steam in the server cell can not appear and run out the problem of server cell, so just can restrict the refrigerant escape after the vaporization. Under the maintenance state, the server will shut down the outage, at this moment, through opening the air inlet, open the electric heater unit that admits air, open gas vent and exhaust fan, make and last through high temperature convection air in the server, remaining liquid refrigerant vaporization on the server with higher speed, the refrigerant after the vaporization is by exhaust fan discharge liquid cooling little outdoor, through refrigerant gas-liquid separation unit, the refrigerant is by the re-separation, assembles in refrigerant return liquid pipe and collects the utilization, so will reduce the waste of refrigerant when overhauing by furthest.

The server chamber monitoring unit comprises a collecting device and an executing device, is used for collecting the operation load, the temperature, the refrigerant liquid supply and return flow speed, the refrigerant liquid supply and return temperature rise, the refrigerant dissipation monitoring data and the auxiliary air intake and exhaust electric heating system operation parameters of the server, uploads the operation parameters to the centralized management device, and executes instructions according to the control of the centralized management device. Server cell monitored control system is as the terminal information acquisition of centralized management system, control and display platform, gather server each part operation load in real time, the temperature rise, the refrigerant supplies back the liquid velocity of flow, the refrigerant supplies back the liquid temperature rise, refrigerant dissipation monitoring data, server cell advances the operation parameter of exhausting and supplementary electric heater unit to return centralized management system, dynamic display server cell key parameter, and carry out collection dress management system operation instruction etc..

In the embodiment of the present invention, the server cubicle is provided with an inclination angle relative to the installation ground, so that the collection speed of the high-temperature refrigerant after spraying can be increased.

In the embodiment of the present invention, the mounting rail and the limiting device of the server cabinet are provided with a power interface, the server is pushed into the server cabinet cavity through the mounting rail, and then the power clamping is automatically completed, and the refrigerant nozzle is also automatically aligned to the key heating part of the server.

In the embodiment of the present example, the server cubicle is a two-layer sealing structure, which prevents the dissipation of the refrigerant:

In the embodiment of the present invention, the number of the cabinet liquid cooling units is set according to the system requirements, and a plurality of cabinet liquid cooling units can share the same refrigerant supply and return pipeline and the auxiliary matching unit. Fig. 3 is a schematic view of a rack-level spray liquid cooling system with multiple components plugged on-line.

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 refrigerants into the refrigerant liquid storage tank, adjusting the pressure of the refrigerant pipe through the refrigerant circulation pump according to the control of the centralized management device, and conveying low-temperature refrigerants in the refrigerant liquid storage tank to the server cabinet body to complete refrigerant circulation.

In the embodiment of the example, the external circulation system mainly comprises a refrigerant circulating pump, a refrigerant liquid storage tank, a plate heat exchanger, a refrigerant gas-liquid separator, a refrigerant pipe and the like, the refrigerant circulating pump and the refrigerant liquid storage tank are controlled by a centralized management system to adjust and balance the pressure of the refrigerant pipe and control the spraying amount of the refrigerant, a continuous circulation process of the refrigerant from low temperature to high temperature to low temperature is accurately completed, the refrigerant gas-liquid separator and a matched pipeline are matched with an auxiliary air intake and exhaust electric heating system of a server chamber, the recovery of the refrigerant in the exhaust of the cabinet liquid cooling unit module in the operation and maintenance process is completed, and the dissipation of the refrigerant is avoided.

In the embodiment of the present invention, the centralized management system is used as a control center of the system, collects data of the monitoring modules on the liquid cooling unit modules of the single cabinet, performs analysis processing on the single data, dynamically monitors in real time, calculates an optimal operation mode of the system, presents system alarm information and processing measures, and executes optimal control measures through the monitoring modules on the liquid cooling unit modules of the single cabinet.

In the embodiment of the example, in the daily operation process, the refrigerant circulating pump and the refrigerant spraying amount are dynamically adjusted by acquiring the working state of the server, the temperature rise of a key heating point CPU, a GPU and a memory of the server, the liquid supply and return temperature of the refrigerant, the temperature of a small chamber of the server, the dissipation of the refrigerant, the electric energy parameter, the quality and other parameters, so that the refrigerating system is accurately controlled; starting monitoring of liquid dissipation, giving an alarm in real time when the liquid dissipation is detected, and simultaneously starting a server chamber for assisting air intake and exhaust of the electric heating system and a refrigerant gas-liquid separator to process the refrigerant dissipation so as to avoid the refrigerant dissipation; and under a fault or maintenance state, starting an alarm to complete the power-off and shutdown process of the server, starting the server chamber to assist in air intake and exhaust of the electric heating system, starting the refrigerant gas-liquid separator, and completing the vaporization and recovery process of the residual refrigerant of the server.

In the embodiment of the present example, as shown in fig. 4, the overall schematic diagram of the online plugging and unplugging cabinet-level spraying liquid cooling system is shown, the server cabinet is divided into a plurality of completely independent cabinet liquid cooling unit modules according to the U-space for server installation, and each cabinet liquid cooling unit module operates independently and is controlled independently without interfering with each other. Each cabinet liquid cooling unit module is provided with an independent server small chamber, a server small chamber cavity, a guide rail and a limiting device are installed in each server small chamber, each server small chamber is designed according to the width of a standard 19-inch cabinet, the U-position space of each server small chamber can be flexibly adjusted according to the size of the U-position space occupied by the installed server, the server of any manufacturer can be pushed into the server small chamber cavity to be installed in place through the universal server small chamber guide rail and the limiting device after a server shell and a fan are disassembled, and a server power supply can be automatically clamped with a power socket of the server small chamber after being pushed into place, so that the electrical connection is completed; the installation mode is simple and reliable, can be adapted to all servers in the existing market, and the servers do not need to be customized and modified.

In the embodiment of the example, because the quick coupling in the prior art is in a pressure operation system, the quick coupling in any form cannot avoid the generation of refrigerant or other liquid discharge in the process of multiple plugging and unplugging, which affects the operation safety of the server. The server of the invention only needs to disconnect the electrical connection when plugging on line, and the safety times of the electrical plugging and the valve switching are more than thousands of times when the liquid cooling liquid supply valve is turned off, therefore, the system can not cause any influence on the system performance in the process of plugging on line, and after the system is plugged for many times, no potential safety hazard exists.

In the embodiment of the example, the refrigerant pump is adjusted, the pressure in the liquid supply pipe is changed, the circulation speed of the refrigerant is adjusted, the refrigerant spraying is accurately adjusted, only one thin liquid flow surface of the liquid refrigerant on the 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 one tenth of that of an immersed liquid cooling scheme, and the initial investment cost of the system is greatly reduced.

The specific details of the device modules of each online plugging cabinet-level spraying liquid cooling system are described in detail in the corresponding online plugging cabinet-level spraying liquid cooling system, and therefore are not described herein again.

It should be noted that although in the above detailed description, several modules or units of the on-line plugging cabinet-level spray liquid cooling system 100 are mentioned, such partitioning is not mandatory. Indeed, according to embodiments of the invention, the features and functions of two or more modules or apparatuses described above may be embodied in one module or apparatus. Conversely, the features and functions of one module or apparatus described above may be further divided into embodiments by a plurality of modules or apparatuses.

In addition, in this exemplary embodiment, the method for controlling online plugging and unplugging of the cabinet-level spray liquid cooling may be as shown in fig. 5, and includes:

a parameter acquisition step S510, acquiring operation parameters of a server, such as the operating load, the temperature, the flow rate of the coolant for supplying and returning liquid, the temperature rise of the coolant for supplying and returning liquid, the coolant dissipation monitoring data, the air intake and exhaust of the server cell and the auxiliary electric heating device through a server cell monitoring unit;

a centralized management step S520, analyzing the server data collected by the server cubicle monitoring unit, calculating the optimal operation mode of the system according to a preset algorithm and sending the optimal operation mode to the server cubicle monitoring unit;

and a cooling control step S530, controlling the pressure of each refrigerant circulating pump and the refrigerant supply and return liquid pipeline according to the optimal operation mode of the system, realizing the control of the refrigerant ejection amount of the refrigerant nozzle of each server, and further realizing the control of the online plugging and unplugging cabinet-level spraying liquid cooling system.

In an embodiment of the present example, the method further comprises:

in the dissipation prevention control step, when the system normally operates and the dissipation of the refrigerant is detected through the server chamber monitoring unit, an exhaust port, a valve and an exhaust fan are opened, so that negative pressure is formed in the server chamber, and the dissipation of the refrigerant is prevented;

and a maintenance control step, wherein when the system is maintained, 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, vaporization of the residual liquid refrigerant on the server is accelerated, and waste of the refrigerant during maintenance is reduced.

It should be noted that although the steps of the method of the present invention are depicted in the drawings in a particular order, this does not require or imply that the steps must be performed in this particular order, or that all of the depicted steps must be performed, to achieve the desired results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions, etc.

Furthermore, the above-described figures are merely schematic illustrations of processes involved in methods according to exemplary embodiments of the invention, and are not intended to be limiting. It will be readily understood that the processes shown in the above figures are not intended to indicate or limit the chronological order of the processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, e.g., in multiple modules.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. The utility model provides an online plug rack level sprays liquid cooling system which characterized in that, the system includes:

the server cabinet body comprises cabinet liquid cooling units, a refrigerant liquid supply and return pipeline and auxiliary matching units, a plurality of cabinet liquid cooling units are divided from a main body of the server cabinet body, each cabinet liquid cooling unit operates independently, each cabinet liquid cooling unit module is provided with a single server small chamber and a server small chamber cavity, a guide rail and a limiting device are installed in each server small chamber, the server cabinet is provided with a U-position space according to a server, each server small chamber is provided with a U-position space matched with the size of the U-position space occupied by the installed server, and a server power supply is connected with a power plug-in port of each server small chamber in a clamping mode through the guide rail and the limiting device of each server small; the server cabinet body completes refrigeration of the server through refrigerant contact key heating points;

2. The system of claim 1, wherein the server rack cabinet comprises:

3. The system of claim 2, wherein the cabinet liquid cooling unit comprises:

4. The system of claim 3, wherein the server cabinet is provided with an inclination angle relative to the installation floor to increase the collection speed of the sprayed high-temperature refrigerant.

5. The system as claimed in claim 3, wherein the mounting rail and the limiting device of the server cabinet are provided with power interfaces, the server is pushed into the cavity of the server cabinet through the mounting rail, the power clamping is automatically completed, and the refrigerant nozzle is also automatically aligned with the key heating part of the server.

6. The system of claim 3, wherein the server cabinet is a two-layer seal that prevents dissipation of the cooling medium:

7. The system of claim 2, wherein the number of the cabinet liquid cooling units is set according to system requirements, and a plurality of cabinet liquid cooling units can share the same refrigerant supply return line and auxiliary matching units.