Multi-stage phase change air cooling coupling server cooling system

Abstract

The invention discloses a multistage phase change air cooling coupling server cooling system, and belongs to the technical field of server cooling. According to the liquid cooling system, a liquid cooling and air cooling coupled cooling heat dissipation mode is adopted, the energy efficiency loss rate can be effectively reduced, a natural cold source is utilized to the maximum extent, and the heat conductivity and the specific heat capacity of liquid are far higher than those of air, so that the liquid cooling system can transfer heat more effectively, meanwhile, the liquid cooling system can provide more stable and uniform temperature control, and the service life of the system is prolonged. According to the invention, the heat transfer coefficient is improved by using the phase change technology, so that the system can still keep a stable temperature during high-load operation.

Description

Technical Field

[0001] The present invention belongs to the technical field of server cooling, and in particular relates to a multi-stage phase-change air-cooling coupled server cooling system. Background Art

[0002] With the rapid development of information technology, the performance of servers, as core equipment for data processing and storage, has been continuously improved, but it also brings higher heat dissipation requirements. Although traditional air cooling or water cooling systems have met the heat dissipation requirements of servers to a certain extent, they still have shortcomings in energy efficiency, heat dissipation efficiency and maintenance costs. Therefore, it is particularly important to develop a new and efficient server cooling system. Summary of the invention

[0003] The object of the present invention is to provide a multi-stage phase change air cooling coupled server cooling system to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-stage phase change air-cooled coupled server cooling system, comprising a phase change cold plate assembly, an air cooling assembly, a control system module, a multi-stage phase change circulation loop module, and a switching valve assembly, wherein the phase change cold plate assembly is used to be attached to a server heating element, the air cooling assembly comprises a fan and a heat dissipation duct, the control system module is used to monitor and adjust the system working state, and the multi-stage phase change circulation loop module is used to realize a closed-loop circulation of a phase change material;

[0005] As a further preferred embodiment of the present technical solution: the number of the phase change cold plate assemblies can be flexibly configured according to the heat dissipation requirements of the server, the phase change cold plate assemblies are arranged in parallel, and each phase change cold plate assembly is provided with an independent liquid inlet, gas outlet and liquid outlet;

[0006] As a further preferred embodiment of the present technical solution: the fan speed and heat dissipation duct structure of the air cooling component can be dynamically adjusted according to the internal temperature of the server monitored in real time, and the heat dissipation duct is used to guide the hot gas exhausted from the server to flow through the fan to achieve heat exchange and cooling;

[0007] As a further preferred embodiment of the present technical solution: the control system module includes a sensor for detecting various parameters of the cooling system, for real-time monitoring of other environmental parameters inside the server, and calculating the optimal heat dissipation solution through other environmental parameters, and a control device electrically connected to the control system, for automatically adjusting the operating state of the cooling system according to the data detected by the sensor;

[0008] As a further preferred embodiment of the present technical solution: the control system module further includes an early warning module, which is used to send out an early warning signal when the internal temperature of the server exceeds a preset threshold value, and take corresponding protective measures to prevent the server from being damaged by overheating. At the same time, when a failure occurs in the cooling system, an alarm signal can also be quickly and automatically sent out so as to be processed in time;

[0009] As a further preferred embodiment of the present technical solution: the multi-stage phase change circulation loop module includes a liquid storage tank, a booster pump, a pipeline and a condenser, the refrigerant in the multi-stage phase change circulation loop module is a low boiling point refrigerant, and the evaporation temperature and condensation temperature under a specific pressure are suitable for server cooling, and the multi-stage phase change circulation loop module also includes a filtering device for filtering and purifying the circulating phase change material to prevent impurities from clogging the pipeline;

[0010] As a further preferred embodiment of the present technical solution: the switching valve assembly can control the refrigerant to selectively enter each phase change cold plate assembly after flowing out from the outlet of the booster pump.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention adopts a cooling and heat dissipation method that couples liquid cooling and air cooling, which can effectively reduce the energy efficiency loss rate and maximize the use of natural cold sources. The thermal conductivity and specific heat capacity of liquid are much higher than those of air, so the liquid cooling system can transfer heat more effectively. At the same time, the liquid cooling system can provide more stable and uniform temperature control, reducing the risk of server failure due to overheating, thereby improving the overall reliability of the data center. The present invention uses phase change technology to improve the heat transfer coefficient, so that the system can maintain a stable temperature when running at high load. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The present invention is a flow chart of a multi-stage phase change air cooling coupled server cooling system. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] Example

[0015] See also Figure 1As shown, the present invention provides a technical solution: a multi-stage phase change air-cooled coupled server cooling system, comprising a phase change cold plate assembly, an air cooling assembly, a control system module, a multi-stage phase change circulation loop module, and a switching valve assembly, wherein the phase change cold plate assembly is used to be attached to a server heating element, the air cooling assembly comprises a fan and a heat dissipation duct, the control system module is used to monitor and adjust the system working state, and the multi-stage phase change circulation loop module is used to realize a closed-loop circulation of a phase change material;

[0016] In this embodiment, specifically: the number of the phase change cold plate assemblies can be flexibly configured according to the heat dissipation requirements of the server, the phase change cold plate assemblies are arranged in parallel, and each phase change cold plate assembly is provided with an independent liquid inlet, gas outlet and liquid outlet;

[0017] In this embodiment, specifically: the fan speed and heat dissipation duct structure of the air cooling component can be dynamically adjusted according to the internal temperature of the server monitored in real time, and the heat dissipation duct is used to guide the hot gas exhausted from the server to flow through the fan to achieve heat exchange and cooling;

[0018] In this embodiment, specifically: the control system module includes a sensor for detecting various parameters of the cooling system, for real-time monitoring of other environmental parameters inside the server, and calculating the optimal heat dissipation solution through other environmental parameters, and a control device electrically connected to the control system, for automatically adjusting the operating state of the cooling system according to the data detected by the sensor;

[0019] In this embodiment, specifically: the control system module also includes an early warning module, which is used to send out an early warning signal when the internal temperature of the server exceeds a preset threshold, and take corresponding protective measures to prevent the server from being damaged by overheating. At the same time, when a failure occurs in the cooling system, an alarm signal can also be quickly and automatically sent out so as to be processed in time;

[0020] In this embodiment, specifically: the multi-stage phase change circulation loop module includes a liquid storage tank, a booster pump, a pipeline and a condenser. The refrigerant in the multi-stage phase change circulation loop module is a low-boiling point refrigerant, and the evaporation temperature and condensation temperature under a specific pressure are suitable for server cooling. The multi-stage phase change circulation loop module also includes a filtering device for filtering and purifying the circulating phase change material to prevent impurities from clogging the pipeline;

[0021] In this embodiment, specifically: the switching valve assembly can control the refrigerant to selectively enter each phase change cold plate assembly after flowing out from the outlet of the booster pump.

[0022] Working principle or structural principle: When in use, the refrigerant is pressurized by a booster pump to increase its pressure level so that it can absorb more heat in the subsequent evaporation process. It is transported to the liquid inlet of the phase change cold plate assembly through a pipeline, and the refrigerant begins to evaporate and absorb heat in the phase change cold plate assembly. This process reduces the temperature inside the server, and then the gaseous refrigerant is discharged through the air outlet of the phase change cold plate assembly along the steam circuit into the air cooling assembly. Through the action of the heat sink and fan in the air cooling assembly, the heat in the refrigerant is dissipated into the air, so that the refrigerant is initially condensed. After the gaseous refrigerant has been initially condensed by the air cooling assembly, it enters the condenser and is further condensed into liquid in the condenser. The heat released during the condensation process is dissipated to the external environment through the heat sink of the condenser. Finally, the condensed liquid refrigerant enters the phase change cold plate assembly through the condensate content, forming a closed loop.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage phase change air cooling coupled server cooling system, comprising a phase change cold plate assembly, an air cooling assembly, a control system module, a multi-stage phase change circulation loop module, and a switching valve assembly, characterized in that: The phase change cold plate assembly is used to be attached to the server heating element, the air cooling assembly includes a fan and a heat dissipation duct, the control system module is used to monitor and adjust the system working state, and the multi-stage phase change circulation loop module is used to realize the closed-loop circulation of the phase change material.

2. A multi-stage phase change air cooling coupled server cooling system according to claim 1, characterized in that: The number of the phase change cold plate assemblies can be flexibly configured according to the heat dissipation requirements of the server. The phase change cold plate assemblies are arranged in parallel, and each phase change cold plate assembly is provided with an independent liquid inlet, air outlet and liquid outlet.

3. According to claim 1, a multi-stage phase change air cooling coupled server cooling system is characterized in that: The fan speed and heat dissipation duct structure of the air cooling component can be dynamically adjusted according to the internal temperature of the server monitored in real time. The heat dissipation duct is used to guide the hot gas exhausted from the server to flow through the fan to achieve heat exchange and cooling.

4. A multi-stage phase change air cooling coupled server cooling system according to claim 1, characterized in that: The control system module includes sensors for detecting various parameters of the cooling system, for real-time monitoring of other environmental parameters inside the server, calculating the optimal heat dissipation solution through other environmental parameters, and a control device electrically connected to the control system, for automatically adjusting the operating state of the cooling system according to the data detected by the sensors.

5. The multi-stage phase change air cooling coupled server cooling system according to claim 1, characterized in that: The control system module also includes an early warning module, which is used to send out an early warning signal when the internal temperature of the server exceeds a preset threshold and take corresponding protective measures to prevent the server from overheating and damage. At the same time, when the cooling system fails, it can also quickly and automatically send out an alarm signal for timely processing.

6. The multi-stage phase change air cooling coupled server cooling system according to claim 1, characterized in that: The multi-stage phase change circulation loop module includes a liquid storage tank, a booster pump, a pipeline and a condenser. The refrigerant in the multi-stage phase change circulation loop module is a low-boiling point refrigerant, and the evaporation temperature and condensation temperature under a specific pressure are suitable for server cooling. The multi-stage phase change circulation loop module also includes a filtering device for filtering and purifying the circulating phase change material to prevent impurities from clogging the pipeline.

7. The multi-stage phase change air cooling coupled server cooling system according to claim 1, characterized in that: The switching valve assembly can control the refrigerant to selectively enter each phase change cold plate assembly after flowing out from the outlet of the booster pump.

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