CN106852087B - Single-stage parallel liquid-air dual-channel natural cooling data center cooling system - Google Patents
Single-stage parallel liquid-air dual-channel natural cooling data center cooling system Download PDFInfo
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Abstract
本专利涉及一种单级并联式液气双通道自然冷却数据中心散热系统，包括液冷模块、风冷装置、第一三通阀和自然散热装置，所述第一三通阀包括第一接口、第二接口和第三接口，第三接口与自然散热装置连通；所述风冷装置的进口连通第一接口，出口连通自然散热装置；所述液冷模块的进口连通第二接口，出口连通自然散热装置。本专利采用自然散热装置进行自然冷却，减少了机械制冷中压缩机等部件的运行和维护成本，极大地降低了能耗，节省了能源。
This patent relates to a single-stage parallel liquid-air dual-channel natural cooling data center heat dissipation system, including a liquid cooling module, an air cooling device, a first three-way valve and a natural heat dissipation device. The first three-way valve includes a first interface , the second interface and the third interface, the third interface communicates with the natural heat dissipation device; the inlet of the air cooling device communicates with the first interface, and the outlet communicates with the natural heat dissipation device; the inlet of the liquid cooling module communicates with the second interface, and the outlet communicates with Natural cooling device. This patent adopts a natural cooling device for natural cooling, which reduces the operation and maintenance costs of compressors and other components in mechanical refrigeration, greatly reduces energy consumption, and saves energy.
Description
技术领域technical field
本专利涉及数据中心自然冷却领域，具体涉及一种单级并联式液气双通道自然冷却数据中心散热系统。This patent relates to the field of natural cooling of data centers, in particular to a single-stage parallel liquid-gas dual-channel natural cooling data center cooling system.
背景技术Background technique
常用的数据中心服务器散热系统中，服务器CPU等高密度热源采用液冷通道散热，即液态流体通过与服务器主要发热芯片隔离接触吸热，带走了服务器总发热量70%〜80%,而剩下的20%〜30%的服务器热量则通过风冷通道带走。由于液冷通道散热效率高，因此采用自然冷却即可满足散热需求,无需压缩机参与制备冷源，整体能耗低，而风冷通道还是有压缩机参与制冷,所以风冷通道的压缩机能耗成为最新散热系统主要能耗设备。In commonly used data center server heat dissipation systems, high-density heat sources such as server CPUs use liquid-cooled channels to dissipate heat, that is, liquid fluid absorbs heat through isolation and contact with the main heat-generating chips of the server, taking away 70% to 80% of the total heat generated by the server, while the remaining The next 20% to 30% of server heat is taken away through the air-cooling aisle. Due to the high heat dissipation efficiency of the liquid cooling channel, natural cooling can be used to meet the heat dissipation demand, and the compressor is not required to participate in the preparation of the cold source, and the overall energy consumption is low. However, the air cooling channel still has a compressor to participate in cooling, so the compressor energy consumption of the air cooling channel Become the main energy-consuming equipment of the latest heat dissipation system.
传统的机房冷冻水空调系统末端送风温度约为15°C〜16°C,在新版GB 50174《数据中心设计规范》中，服务器允许进风温度提高到32°C,即表明提高后的服务器允许进风温度也可满足服务器散热要求，同时服务器主要发热量已经通过高效的液冷通道散发出去，只剩下小部分分散式发热量,这使得风冷通道去除压缩机，利用自然冷源进行散热成为可能。The terminal air supply temperature of the traditional chilled water air conditioning system in the computer room is about 15°C~16°C. In the new version of GB 50174 "Data Center Design Code", the server allows the air inlet temperature to be increased to 32°C, which means that the server after the increase The allowable air inlet temperature can also meet the heat dissipation requirements of the server. At the same time, the main heat generated by the server has been dissipated through the efficient liquid cooling channel, leaving only a small part of the distributed heat. This allows the air cooling channel to remove the compressor and use the natural cooling source for cooling. heat dissipation is possible.
发明内容Contents of the invention
为了克服现有技术的缺陷，本专利提供一种单级并联式液气双通道自然冷却数据中心散热系统，能够充分利用自然冷源实现数据中心自然冷却，节约能源。In order to overcome the defects of the prior art, this patent provides a single-stage parallel liquid-gas dual-channel natural cooling data center heat dissipation system, which can make full use of natural cooling sources to realize natural cooling of the data center and save energy.
针对本专利来说，上述技术问题是这样加以解决的：一种单级并联式液气双通道自然冷却数据中心散热系统，包括液冷模块、风冷装置、第一三通阀和自然散热装置，所述第一三通阀包括第一接口、第二接口和第三接口，第三接口与自然散热装置连通;所述风冷装置的进口连通第一接口，出口连通自然散热装置;所述液冷模块的进口连通第二接口，出口连通自然散热装置。For this patent, the above technical problems are solved as follows: a single-stage parallel liquid-gas dual-channel natural cooling data center cooling system, including a liquid cooling module, an air cooling device, a first three-way valve and a natural cooling device , the first three-way valve includes a first interface, a second interface and a third interface, the third interface communicates with the natural heat dissipation device; the inlet of the air cooling device communicates with the first interface, and the outlet communicates with the natural heat dissipation device; The inlet of the liquid cooling module is connected to the second interface, and the outlet is connected to the natural heat dissipation device.
所述液冷模块用于吸收服务器中主要发热元件的集中式热量，风冷装置用于吸收服务器中其他元件的分散式热量。液冷模块利用液体换热介质比热容大、对流换热快、蒸发潜热大等特点，所以才能够结合自然散热装置对服务器主要发热元件进行自然冷却，满足散热需求,其次因为服务器中70%〜80%的热量已被液冷模块带走，服务器中其余的分布式热量允许进一步提高送风温度到32°C,这使得风冷装置能够结合自然散热装置对服务器中的其他发热元件进行自然冷却，再者第一三通阀可以根据液冷模块和风冷装置之间的散热量比例调节分配工质流量，灵活性好，保证系统稳定运行。综上，本专利充分利用自然冷源进行散热，减少了机械制冷中压缩机等部件的运行和维护成本，极大地降低了能耗，节省了能源。The liquid cooling module is used to absorb the concentrated heat of the main heating element in the server, and the air cooling device is used to absorb the distributed heat of other components in the server. The liquid cooling module utilizes the characteristics of large specific heat capacity, fast convective heat transfer, and large latent heat of evaporation of the liquid heat exchange medium, so it can naturally cool the main heating elements of the server in combination with the natural heat dissipation device to meet the heat dissipation requirements. Secondly, because 70%~80% of the server % of the heat has been taken away by the liquid cooling module, and the remaining distributed heat in the server allows the temperature of the air supply to be further increased to 32°C, which enables the air cooling device to combine with the natural heat dissipation device to naturally cool other heating elements in the server, In addition, the first three-way valve can adjust the flow rate of the distributed working medium according to the heat dissipation ratio between the liquid cooling module and the air cooling device, which has good flexibility and ensures stable operation of the system. In summary, this patent makes full use of natural cold sources for heat dissipation, reduces the operation and maintenance costs of compressors and other components in mechanical refrigeration, greatly reduces energy consumption, and saves energy.
进一步地，还包括设在风冷装置出口的第一温度传感器、设在液冷模块出口的第二温度传感器、第二三通阀，所述第二三通阀包括第四接口、第五接口和第六接口，第四接口与自然散热装置连通，第五接口与第三接口连通;所述液冷模块的出口和风冷装置的出口同时通过第六接口与自然散热装置连通。Further, it also includes a first temperature sensor arranged at the outlet of the air cooling device, a second temperature sensor arranged at the outlet of the liquid cooling module, and a second three-way valve, and the second three-way valve includes a fourth interface and a fifth interface and the sixth interface, the fourth interface communicates with the natural heat dissipation device, and the fifth interface communicates with the third interface; the outlet of the liquid cooling module and the outlet of the air cooling device communicate with the natural heat dissipation device through the sixth interface at the same time.
所述第一温度传感器检测到风冷装置出口的温度比设定值偏高时，此时第一三通阀应当增大第一接口和第二接口之间的流量比例，进而增大通过风冷装置的换热介质的流量，提高风冷装置的换热效率，从而使得风冷装置出口的温度降至设定值以下，满足系统散热需求，保证系统稳定运行；所述第二温度传感器检测到液冷模块的出口温度比设定值偏高时，此时第一三通阀应当降低第一接口和第二接口之间的流量比例，进而增大通过液冷模块的换热介质的流量,提高散热效率，从而使得液冷模块出口的温度降至设定值以下，满足系统散热需求,保证系统稳定运行；所述第一温度传感器检测到风冷装置出口的温度和第二温度传感器检测到液冷模块的出口温度同时比设定值偏高时,通过调小第五接口的流量来使更多的换热介质进入自然散热装置进行散热，提高自然散热装置的散热效率，从而使风冷装置出口的温度和液冷模块的出口温度均下降到设定值以下，满足系统散热需求，保证系统稳定运行。When the first temperature sensor detects that the temperature at the outlet of the air-cooling device is higher than the set value, the first three-way valve should increase the flow ratio between the first port and the second port at this time, thereby increasing the flow rate of the air passing through. The flow rate of the heat exchange medium of the cooling device improves the heat transfer efficiency of the air cooling device, so that the temperature at the outlet of the air cooling device drops below the set value, which meets the heat dissipation requirements of the system and ensures the stable operation of the system; the second temperature sensor detects When the outlet temperature of the liquid cooling module is higher than the set value, the first three-way valve should reduce the flow ratio between the first port and the second port, thereby increasing the flow rate of the heat exchange medium passing through the liquid cooling module , improve the heat dissipation efficiency, so that the temperature at the outlet of the liquid cooling module drops below the set value, meet the heat dissipation requirements of the system, and ensure the stable operation of the system; the first temperature sensor detects the temperature at the outlet of the air cooling device and the second temperature sensor detects When the outlet temperature of the liquid cooling module is higher than the set value at the same time, by reducing the flow rate of the fifth interface, more heat exchange medium enters the natural heat dissipation device for heat dissipation, and improves the heat dissipation efficiency of the natural heat dissipation device, so that the wind The temperature at the outlet of the cooling device and the outlet temperature of the liquid cooling module both drop below the set value, which meets the heat dissipation requirements of the system and ensures the stable operation of the system.
进一步地，还包括设在风冷装置出口的第一温度传感器。Further, it also includes a first temperature sensor arranged at the outlet of the air cooling device.
所述第一温度传感器检测到风冷装置出口的温度比设定值偏高时，此时第一三通阀应当增大第一接口和第二接口之间的流量比例，进而增大通过风冷装置的换热介质的流量，提高风冷装置的换热效率，从而使得风冷装置出口的温度降至设定值以下，满足系统散热需求，保证系统稳定运行。When the first temperature sensor detects that the temperature at the outlet of the air-cooling device is higher than the set value, the first three-way valve should increase the flow ratio between the first port and the second port at this time, thereby increasing the flow rate of the air passing through. The flow rate of the heat exchange medium of the cooling device improves the heat transfer efficiency of the air cooling device, so that the temperature at the outlet of the air cooling device drops below the set value, meets the heat dissipation requirements of the system, and ensures the stable operation of the system.
进一步地，还包括设在液冷模块出口的第二温度传感器。Further, a second temperature sensor arranged at the outlet of the liquid cooling module is also included.
所述第二温度传感器检测到液冷模块的出口温度比设定值偏高时，此时第一三通阀应当降低第一接口和第二接口之间的流量比例，进而增大通过液冷模块的换热介质的流量，提高散热效率，从而使得液冷模块出口的温度降至设定值以下，满足系统散热需求，保证系统稳定运行。When the second temperature sensor detects that the outlet temperature of the liquid cooling module is higher than the set value, the first three-way valve should reduce the flow ratio between the first port and the second port, thereby increasing the flow rate through the liquid cooling module. The flow rate of the heat exchange medium of the module improves the heat dissipation efficiency, so that the temperature at the outlet of the liquid cooling module drops below the set value, which meets the heat dissipation requirements of the system and ensures the stable operation of the system.
进一步地，还包括第二三通阀以及设在风冷装置进口的第三温度传感器，所述第二三通阀包括第四接口、第五接口和第六接口，第四接口与自然散热装置连通，第五接口与第三接口连通;所述液冷模块的出口和风冷装置的出口同时通过第六接口与自然散热装置连通。Further, it also includes a second three-way valve and a third temperature sensor located at the inlet of the air cooling device, the second three-way valve includes a fourth interface, a fifth interface and a sixth interface, and the fourth interface is connected with the natural heat dissipation device The fifth interface is communicated with the third interface; the outlet of the liquid cooling module and the outlet of the air cooling device are simultaneously communicated with the natural heat dissipation device through the sixth interface.
所述第三温度传感器检测到风冷装置的进口温度比设定值偏低时，此时第二三通阀应当加大第五接口的开度，进而减小通过自然散热装置的换热介质流量，降低自然散热装置的换热效率，从而使得风冷装置进口的温度升高到设定值以上，节省系统能耗的同时也防止风冷装置过冷而产生凝露现象，避免凝露导致的电路短路、霉菌滋生和材料腐蚀等安全隐患，保证系统安全稳定运行。When the third temperature sensor detects that the inlet temperature of the air cooling device is lower than the set value, the second three-way valve should increase the opening of the fifth interface at this time, thereby reducing the heat exchange medium passing through the natural heat dissipation device. The flow rate reduces the heat exchange efficiency of the natural heat dissipation device, so that the temperature at the inlet of the air cooling device rises above the set value, saving system energy consumption and preventing the condensation phenomenon caused by the overcooling of the air cooling device, avoiding the condensation caused by condensation. The short circuit of the circuit, the growth of mold and the corrosion of materials and other safety hazards ensure the safe and stable operation of the system.
进一步地，还包括第二三通阀以及设在液冷模块进口的第四温度传感器，所述第二三通阀包括第四接口、第五接口和第六接口，第四接口与自然散热装置连通，第五接口与第三接口连通;所述液冷模块的出口和风冷装置的出口同时通过第六接口与自然散热装置连通。Further, it also includes a second three-way valve and a fourth temperature sensor arranged at the inlet of the liquid cooling module, the second three-way valve includes a fourth interface, a fifth interface and a sixth interface, and the fourth interface is connected with the natural heat dissipation device The fifth interface is communicated with the third interface; the outlet of the liquid cooling module and the outlet of the air cooling device are simultaneously communicated with the natural heat dissipation device through the sixth interface.
所述第四温度传感器检测到液冷模块的进口温度比设定值偏低时，此时第二三通阀应当加大第五接口的开度，进而减小通过自然散热装置的换热介质流量，降低自然散热装置的换热效率，从而使得液冷模块进口的温度升高到设定值以上，节省系统能耗的同时也防止液冷模块过冷而产生凝露现象，避免凝露导致的电路短路、霉菌滋生和材料腐蚀等安全隐患，保证系统安全稳定运行。When the fourth temperature sensor detects that the inlet temperature of the liquid cooling module is lower than the set value, the second three-way valve should increase the opening of the fifth interface at this time, thereby reducing the heat exchange medium passing through the natural heat dissipation device. The flow rate reduces the heat exchange efficiency of the natural heat dissipation device, so that the temperature at the inlet of the liquid cooling module rises above the set value, saving system energy consumption and preventing condensation from being overcooled by the liquid cooling module. The short circuit of the circuit, the growth of mold and the corrosion of materials and other safety hazards ensure the safe and stable operation of the system.
进一步地,还包括设在自然散热装置进口或出口的水泵。Further, it also includes a water pump arranged at the inlet or outlet of the natural cooling device.
所述第一温度传感器检测到风冷装置出口的温度和第二温度传感器检测到液冷模块的出口温度同时比设定值偏高时,优先通过调小第五接口的流量来使更多的换热介质进入自然散热装置进行散热，当上述方法无法满足散热要求时还可以加大水泵的运行频率来提高自然散热装置的散热效率,从而使风冷装置出口的温度和液冷模块的出口温度均下降到设定值以下，满足系统散热需求，进一步保证系统稳定运行；所述第三温度传感器检测到风冷装置的进口温度或第四温度传感器检测到液冷模块的进口温度比设定值偏低时，优先减小水泵的运行频率来降低自然散热装置的散热效率，当上述方法也无法满足温度设定值的要求时，还可以加大第二三通阀第五接口的开度进而减小通过自然散热装置的换热介质流量，从而使得液冷模块进口的温度和风冷装置进口的温度升高到设定值以上，节省系统能耗的同时也防止液冷模块和风冷装置因过冷而产生凝露现象，避免凝露导致的电路短路、霉菌滋生和材料腐蚀等安全隐患，进一步保证系统安全稳定运行。When the first temperature sensor detects that the outlet temperature of the air cooling device and the second temperature sensor detect that the outlet temperature of the liquid cooling module is higher than the set value at the same time, the flow rate of the fifth interface is preferentially reduced to make more The heat exchange medium enters the natural heat dissipation device for heat dissipation. When the above methods cannot meet the heat dissipation requirements, the operating frequency of the water pump can be increased to improve the heat dissipation efficiency of the natural heat dissipation device, so that the outlet temperature of the air cooling device and the outlet temperature of the liquid cooling module Both fall below the set value to meet the heat dissipation requirements of the system and further ensure the stable operation of the system; the third temperature sensor detects the inlet temperature of the air cooling device or the fourth temperature sensor detects that the inlet temperature of the liquid cooling module is higher than the set value When it is too low, reduce the operating frequency of the water pump first to reduce the heat dissipation efficiency of the natural heat dissipation device. When the above method cannot meet the requirements of the temperature setting value, you can also increase the opening of the fifth interface of the second three-way valve to further reduce the temperature. Reduce the flow of heat exchange medium through the natural heat dissipation device, so that the temperature of the inlet of the liquid cooling module and the temperature of the inlet of the air cooling device rise above the set value, saving system energy consumption and preventing the liquid cooling module and air cooling device from Condensation occurs due to overcooling, avoiding potential safety hazards such as circuit short circuit, mold growth, and material corrosion caused by condensation, and further ensures the safe and stable operation of the system.
进一步地，所述自然散热装置上设有风机。Further, a fan is provided on the natural heat dissipation device.
所述第一温度传感器检测到风冷装置出口的温度和第二温度传感器检测到液冷模块的出口温度同时比设定值偏高时,优先通过调小第五接口的流量来使更多的换热介质进入自然散热装置进行散热，当上述方法无法满足散热要求时还可以加大风机的运行频率来提高自然散热装置的散热效率,从而使风冷装置出口的温度和液冷模块的出口温度均下降到设定值以下，满足系统散热需求，进一步保证系统稳定运行；所述第三温度传感器检测到风冷装置的进口温度或第四温度传感器检测到液冷模块的进口温度比设定值偏低时，优先减小水泵的运行频率来降低自然散热装置的散热效率，当上述方法也无法满足温度设定值的要求时，还可以通过降低风机的运行频率来降低自然散热装置的散热效率，从而使得液冷模块进口的温度和风冷装置进口的温度升高到设定值以上，节省系统能耗的同时也防止液冷模块和风冷装置因过冷而产生凝露现象，避免凝露导致的电路短路、霉菌滋生和材料腐蚀等安全隐患，进一步保证系统安全稳定运行。When the first temperature sensor detects that the outlet temperature of the air cooling device and the second temperature sensor detect that the outlet temperature of the liquid cooling module is higher than the set value at the same time, the flow rate of the fifth interface is preferentially reduced to make more The heat exchange medium enters the natural heat dissipation device for heat dissipation. When the above methods cannot meet the heat dissipation requirements, the operating frequency of the fan can be increased to improve the heat dissipation efficiency of the natural heat dissipation device, so that the outlet temperature of the air cooling device and the outlet temperature of the liquid cooling module Both fall below the set value to meet the heat dissipation requirements of the system and further ensure the stable operation of the system; the third temperature sensor detects the inlet temperature of the air cooling device or the fourth temperature sensor detects that the inlet temperature of the liquid cooling module is higher than the set value When it is too low, reduce the operating frequency of the water pump first to reduce the heat dissipation efficiency of the natural heat dissipation device. When the above methods cannot meet the requirements of the temperature setting value, you can also reduce the heat dissipation efficiency of the natural heat dissipation device by reducing the operating frequency of the fan , so that the temperature at the inlet of the liquid-cooling module and the inlet of the air-cooling device rises above the set value, saving energy consumption of the system and preventing condensation of the liquid-cooling module and the air-cooling device due to overcooling. It can further ensure the safe and stable operation of the system, such as circuit short circuit, mold growth and material corrosion caused by dew.
进一步地,所述自然散热装置为冷却塔或干冷器。Further, the natural heat dissipation device is a cooling tower or a dry cooler.
进一步地,所述风冷装置为风机墙空调末端。Further, the air cooling device is a fan wall air conditioner terminal.
相比于现有技术,本专利的有益效果为：Compared with the prior art, the beneficial effects of this patent are:
1、所述液冷模块和风冷装置通过自然散热装置进行自然冷却，极大地降低了能耗。1. The liquid cooling module and the air cooling device are naturally cooled by a natural heat dissipation device, which greatly reduces energy consumption.
2、通过检测机构：第一温度传感器、第二温度传感器、第三温度传感器和第四温度传感器对系统状态的检测，以及调节机构：水泵、风机、第一三通阀和第二三通阀对系统工作的调控，保证系统在满足散热需求的同时避免过冷凝露导致的电路短路、霉菌滋生和材料腐蚀等安全隐患，稳定性好。2. Through the detection mechanism: the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor to detect the system state, and the adjustment mechanism: the water pump, the fan, the first three-way valve and the second three-way valve The regulation of the system work ensures that the system meets the heat dissipation requirements while avoiding potential safety hazards such as circuit short circuit, mold growth, and material corrosion caused by excessive condensation, and has good stability.
附图说明Description of drawings
图1是本专利的系统结构图。Fig. 1 is the system structural diagram of this patent.
具体实施方式Detailed ways
如图1所示的一种单级并联式液气双通道自然冷却数据中心散热系统，包括液冷模块7、风冷装置8、第一三通阀4、和自然散热装置1,所述第一三通阀4包括第一接口a、第二接口b和第三接口c,第三接口c与自然散热装置1连通；所述风冷装置8的进口连通第一接口a,出口连通自然散热装置1；所述液冷模块7的进口连通第二接口b,出口连通自然散热装置1。As shown in Figure 1, a single-stage parallel liquid-air dual-channel natural cooling data center cooling system includes a liquid cooling module 7, an air cooling device 8, a first three-way valve 4, and a natural cooling device 1, the first A three-way valve 4 includes a first port a, a second port b and a third port c, and the third port c communicates with the natural heat dissipation device 1; the inlet of the air cooling device 8 communicates with the first port a, and the outlet communicates with the natural heat dissipation device Device 1; the inlet of the liquid cooling module 7 is connected to the second interface b, and the outlet is connected to the natural heat dissipation device 1 .
所述液冷模块7用于吸收服务器中主要发热元件的集中式热量，风冷装置8用于吸收服务器中其他元件的分散式热量。液冷模块7利用液体换热介质比热容大、对流换热快、蒸发潜热大等特点，所以才能够结合自然散热装置1对服务器主要发热元件进行自然冷却，满足散热需求，其次因为服务器中70%〜80%的热量已被液冷模块7带走，服务器中其余的分布式热量允许进一步提高送风温度到32°C,这使得风冷装置8能够结合自然散热装置1对服务器中的其他发热元件进行自然冷却，再者第一三通阀4可以根据液冷模块7和风冷装置8之间的散热量比例调节分配工质流量，灵活性好，保证系统稳定运行。综上，本专利充分利用自然冷源进行散热，减少了机械制冷中压缩机等部件的运行和维护成本，极大地降低了能耗，节省了能源。The liquid cooling module 7 is used to absorb the concentrated heat of the main heating elements in the server, and the air cooling device 8 is used to absorb the distributed heat of other components in the server. The liquid cooling module 7 utilizes the characteristics of large specific heat capacity of the liquid heat exchange medium, fast convective heat transfer, and large latent heat of evaporation, so it can combine the natural cooling device 1 to naturally cool the main heating elements of the server to meet the heat dissipation requirements. Secondly, because 70% of the server ~80% of the heat has been taken away by the liquid cooling module 7, and the remaining distributed heat in the server allows to further increase the supply air temperature to 32°C, which enables the air cooling device 8 to combine with the natural heat dissipation device 1 for other heat generation in the server The components are naturally cooled, and the first three-way valve 4 can adjust the flow rate of the distributed working fluid according to the heat dissipation ratio between the liquid cooling module 7 and the air cooling device 8, which has good flexibility and ensures stable operation of the system. In summary, this patent makes full use of natural cold sources for heat dissipation, reduces the operation and maintenance costs of compressors and other components in mechanical refrigeration, greatly reduces energy consumption, and saves energy.
具体实施过程中，所述风冷装置8为风机墙空调末端，包括盘管5和设在盘管5上的风机墙19,自然散热装置1为冷却塔或干冷器。In the specific implementation process, the air cooling device 8 is a fan wall air conditioner terminal, including a coil 5 and a
该系统还包括设在盘管5出口的第一温度传感器10、设在液冷模块7出口的第二温度传感器11、设在盘管5进口的第三温度传感器9、设在液冷模块进口的第四温度传感器12、设在自然散热装置1出口的水泵3、设在自然散热装置1上的风机（图中未标出）以及第二三通阀2,所述第二三通阀2包括第四接口d、第五接口e和第六接口f,第四接口d与自然散热装置1连通，第五接口e与第三接口c连通；所述液冷装置7的出口和盘管5的出口同时通过第六接口f与自然散热装置1连通。The system also includes a first temperature sensor 10 arranged at the outlet of the coil pipe 5, a second temperature sensor 11 arranged at the outlet of the liquid cooling module 7, a third temperature sensor 9 arranged at the inlet of the coil pipe 5, and a third temperature sensor 9 arranged at the inlet of the liquid cooling module. The fourth temperature sensor 12, the water pump 3 arranged at the outlet of the natural heat dissipation device 1, the fan (not shown in the figure) arranged on the natural heat dissipation device 1, and the second three-way valve 2, the second three-way valve 2 Including the fourth interface d, the fifth interface e and the sixth interface f, the fourth interface d communicates with the natural cooling device 1, the fifth interface e communicates with the third interface c; the outlet of the liquid cooling device 7 and the coil 5 At the same time, the outlet of is in communication with the natural heat sink 1 through the sixth interface f.
具体实施过程中，所述水泵3上设有第一变频器21,风机上设有第二变频器6。During specific implementation, the water pump 3 is provided with a first frequency converter 21 , and the fan is provided with a second frequency converter 6 .
本专利一种单级并联式液气双通道自然冷却数据中心散热系统的工作原理如下：The working principle of a single-stage parallel liquid-air dual-channel natural cooling data center cooling system in this patent is as follows:
第一三通阀4根据液冷模块7和盘管5之间默认的散热量比例值分配第一接口a和第二接口b之间的换热介质，满足液冷模块7和盘管5的基本散热需求。The first three-way valve 4 distributes the heat exchange medium between the first interface a and the second interface b according to the default ratio of heat dissipation between the liquid cooling module 7 and the coil 5 to meet the requirements of the liquid cooling module 7 and the coil 5 Basic cooling needs.
1、当所述第一温度传感器10检测到盘管5出口的温度比设定值偏高时，此时第一三通阀4应当增大第一接口a和第二接口b之间的流量比例，进而增大通过盘管5的换热介质的流量，提高盘管5的换热效率，从而使得盘管5出口的温度降至设定值以下，满足盘管5的散热需求,保证系统稳定运行；当所述第二温度传感器11检测到液冷模块7的出口温度比设定值偏高时，此时第一三通阀4应当降低第一接口a和第二接口b之间的流量比例，进而增大通过液冷模块7的换热介质的流量，提高散热效率，从而使得液冷模块7出口的温度降至设定值以下，满足系统散热需求，保证系统稳定运行；所述第一温度传感器10检测到盘管5出口的温度和第二温度传感器11检测到液冷模块7的出口温度同时比设定值偏高时，优先调小第五接口e的流量来使更多的换热介质进入自然散热装置1进行散热，提高自然散热装置1的散热效率，当第五接口e调至最小也无法满足散热要求时，还可以通过第二变频器6加大风机的运行频率，来提高自然散热装置1的散热效率，当第二变频器6调至最大也无法满足散热要求时，还可以通过第一变频器21加大水泵3的运行频率来提高自然散热装置1的散热效率，，从而使盘管5出口的温度和液冷模块7的出口温度均下降到设定值以下，保证系统稳定运行。1. When the first temperature sensor 10 detects that the temperature at the outlet of the coil 5 is higher than the set value, the first three-way valve 4 should increase the flow between the first port a and the second port b Ratio, and then increase the flow rate of the heat exchange medium through the coil 5, improve the heat exchange efficiency of the coil 5, so that the temperature at the outlet of the coil 5 drops below the set value, meet the heat dissipation requirements of the coil 5, and ensure the system Stable operation; when the second temperature sensor 11 detects that the outlet temperature of the liquid cooling module 7 is higher than the set value, the first three-way valve 4 should reduce the temperature between the first port a and the second port b. flow ratio, and then increase the flow rate of the heat exchange medium passing through the liquid cooling module 7, and improve the heat dissipation efficiency, so that the temperature at the outlet of the liquid cooling module 7 drops below the set value, which meets the heat dissipation requirements of the system and ensures stable operation of the system; When the first temperature sensor 10 detects the temperature at the outlet of the coil pipe 5 and the second temperature sensor 11 detects that the outlet temperature of the liquid cooling module 7 is higher than the set value at the same time, the flow rate of the fifth interface e is preferentially reduced to make more The heat exchange medium enters the natural heat dissipation device 1 for heat dissipation, and improves the heat dissipation efficiency of the natural heat dissipation device 1. When the fifth interface e is adjusted to the minimum and cannot meet the heat dissipation requirements, the second frequency converter 6 can also be used to increase the operating frequency of the fan , to improve the heat dissipation efficiency of the natural heat dissipation device 1, when the second frequency converter 6 is adjusted to the maximum and cannot meet the heat dissipation requirements, the first frequency converter 21 can also be used to increase the operating frequency of the water pump 3 to improve the heat dissipation of the natural heat dissipation device 1 Efficiency, so that the temperature at the outlet of the coil 5 and the outlet temperature of the liquid cooling module 7 are both lower than the set value, so as to ensure the stable operation of the system.
2、当所述第三温度传感器9检测到盘管5的进口温度或第四温度传感器12检测到液冷模块7的进口温度比设定值偏低时，优先通过第一变频器21减小水泵3的运行频率来降低自然散热装置1的散热效率，当水泵3的运行频率调至最小也无法满足温度设定值的要求时，还可以通过第二变频器6降低风机运行频率来降低自然散热装置1的散热效率，当第二变频器6调至最小也无法满足温度设定值的要求时，还可以通过加大第二三通阀2第五接口e的开度进而减小通过自然散热装置1的换热介质流量，从而使得液冷模块7进口的温度和盘管5进口的温度升高到设定值以上，节省系统能耗的同时也防止液冷模块7和盘管5因过冷而产生凝露现象，避免凝露导致的电路短路、霉菌滋生和材料腐蚀等安全隐患，进一步保证系统安全稳定运行。2. When the third temperature sensor 9 detects the inlet temperature of the coil 5 or the fourth temperature sensor 12 detects that the inlet temperature of the liquid cooling module 7 is lower than the set value, the first frequency converter 21 is given priority to reduce The operating frequency of the water pump 3 is used to reduce the heat dissipation efficiency of the natural heat dissipation device 1. When the operating frequency of the water pump 3 is adjusted to the minimum and cannot meet the requirements of the temperature setting value, the second frequency converter 6 can also be used to reduce the operating frequency of the fan to reduce the natural heat dissipation. The heat dissipation efficiency of the heat dissipation device 1, when the second frequency converter 6 is adjusted to the minimum and cannot meet the requirements of the temperature setting value, it can also be reduced by increasing the opening degree of the fifth interface e of the second three-way valve 2 to reduce the natural The heat exchange medium flow rate of the cooling device 1, so that the temperature at the inlet of the liquid cooling module 7 and the temperature at the inlet of the coil 5 rises above the set value, saving system energy consumption and preventing the liquid cooling module 7 and coil 5 from Condensation occurs due to overcooling, avoiding safety hazards such as circuit short circuit, mold growth, and material corrosion caused by condensation, and further ensuring the safe and stable operation of the system.
3、当所述第一温度传感器10检测到盘管5出口的温度和第二温度传感器11检测到液冷模块7的出口温度同时比设定值偏高，而所述第三温度传感器9检测到盘管5的进口温度或第四温度传感器12检测到液冷模块7的进口温度比设定值偏低时，优先按第1点中对出现所述第一温度传感器10检测到盘管5出口的温度和第二温度传感器11检测到液冷模块7的出口温度同时比设定值偏高时采取的方案执行，保证满足液冷模块7和盘管5的散热需求，可靠性高。3. When the first temperature sensor 10 detects the temperature at the outlet of the coil 5 and the second temperature sensor 11 detects that the outlet temperature of the liquid cooling module 7 is higher than the set value at the same time, and the third temperature sensor 9 detects When the inlet temperature of the coil 5 or the fourth temperature sensor 12 detects that the inlet temperature of the liquid cooling module 7 is lower than the set value, the first temperature sensor 10 detects the coil 5 according to the first point. The temperature at the outlet and the second temperature sensor 11 detect that the outlet temperature of the liquid cooling module 7 is higher than the set value at the same time, and the solution is executed to ensure that the heat dissipation requirements of the liquid cooling module 7 and the coil 5 are met, and the reliability is high.
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Denomination of invention: A single-stage parallel liquid-gas dual-channel natural cooling data center heat dissipation system Granted publication date: 20230512 Pledgee: China Co. truction Bank Corp Foshan branch Pledgor: Guangdong Shenling Environmental Systems Co.,Ltd. Registration number: Y2025980052659 |
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