CN115968181A

CN115968181A - Heat dissipation device, heat dissipation system, control method of heat dissipation device and data center

Info

Publication number: CN115968181A
Application number: CN202310195561.0A
Authority: CN
Inventors: 任华华
Original assignee: Alibaba China Co Ltd
Current assignee: Alibaba China Co Ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-04-14

Abstract

The application provides a heat dissipation device, a heat dissipation system, a control method of the heat dissipation device and a data center, and relates to the technical field of data centers. The heat dissipating device includes: the fan is arranged in the shell so as to form a heat dissipation air channel in the shell; the heat dissipation coil is arranged in the heat dissipation air duct, and a cooling liquid channel for flowing of first cooling liquid is defined in the heat dissipation coil; the isenthalpic humidifier is arranged in the heat dissipation air channel and is positioned at the upstream of the heat dissipation coil along the air flowing direction in the heat dissipation air channel; the liquid sprayer is arranged in the heat dissipation air channel and is positioned at the downstream of the isenthalpic humidifier along the air flowing direction in the heat dissipation air channel; wherein, when the heat sink is in the heat dissipation mode, the fan remains on, and the isenthalpic humidifier and the liquid sprayer are configured to be on or off. According to the technical scheme of the embodiment of the application, the water consumption of the heat dissipation equipment can be effectively reduced, and the efficiency of utilizing water resources by the data center is improved.

Description

Heat dissipation device, heat dissipation system, control method of heat dissipation device and data center

Technical Field

The present application relates to the field of data center technologies, and in particular, to a heat dissipation device, a heat dissipation system, a control method for a heat dissipation device, and a data center.

Background

With the rapid development of mobile data, cloud computing and big data services, the scale of data center construction is larger and larger, and the heat productivity of the server is also increased continuously. The outdoor heat sink of a data center is typically a cooling tower that circulates water as a coolant, absorbs heat from the data center, and discharges the heat to the atmosphere to reduce the temperature of the water. In the related art, the water consumption of the cooling tower is large, and the efficiency of utilizing water resources by the data center is low.

Disclosure of Invention

The embodiment of the application provides a heat dissipation device, a heat dissipation system, a control method of the heat dissipation device and a data center, so that water consumption is reduced.

In a first aspect, an embodiment of the present application provides a heat dissipation apparatus, including: the fan is arranged in the shell so as to form a heat dissipation air channel in the shell; the heat dissipation coil is arranged in the heat dissipation air duct, and a cooling liquid channel for flowing of first cooling liquid is defined in the heat dissipation coil; the isenthalpic humidifier is arranged in the heat dissipation air channel and is positioned at the upstream of the heat dissipation coil along the air flowing direction in the heat dissipation air channel; the liquid sprayer is arranged in the heat dissipation air duct, and is positioned at the downstream of the isenthalpic humidifier along the air flowing direction in the heat dissipation air duct; wherein, when the heat sink is in the heat dissipation mode, the fan remains on, and the isenthalpic humidifier and the liquid sprayer are configured to be on or off.

In a second aspect, an embodiment of the present application provides a heat dissipation system, including: the heat dissipating apparatus of any embodiment of the present application; the controller is electrically connected with the fan, the isenthalpic humidifier and the liquid sprayer of the heat dissipation equipment and used for controlling the rotating speed of the fan according to the temperature of the first cooling liquid at the output end of the cooling liquid flow channel and controlling the opening or closing of the isenthalpic humidifier and the liquid sprayer.

In a third aspect, an embodiment of the present application provides a method for controlling a heat dissipation apparatus, which is applied to the heat dissipation apparatus in any embodiment of the present application; the control method comprises the following steps: when the heat dissipation device is in a heat dissipation mode, the fan is controlled to be kept on, and the isenthalpic humidifier and the liquid sprayer are controlled to be turned on or turned off according to the temperature of the first cooling liquid at the output end of the cooling liquid channel of the heat dissipation device.

In a fourth aspect, an embodiment of the present application provides a data center including the heat dissipation system of any embodiment of the present application.

According to the technical scheme of this application embodiment, be in the radiating mode at radiator, the fan can keep opening, and isenthalpic humidifier and liquid spray device only need open under the unable water supply temperature with the cooling water of dry cooling reduces to the condition of settlement temperature, can reduce radiator's water consumption by furthest to save the water resource, improve the efficiency that data center utilized the water resource.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present application will be readily apparent by reference to the drawings and following detailed description.

Drawings

In the drawings, like reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily to scale. It is appreciated that these drawings depict only some embodiments in accordance with the disclosure and are therefore not to be considered limiting of its scope.

Fig. 1 shows a schematic view of an open cooling tower in the related art.

Fig. 2 shows a schematic view of a closed cooling tower in the related art.

Fig. 3 shows a schematic structural diagram of a heat dissipation apparatus according to an embodiment of the present application.

Fig. 4A shows an architecture diagram of a heat dissipation system according to an embodiment of the present application.

Fig. 4B and 4C illustrate control schematic diagrams of a controller of a heat dissipation system according to an embodiment of the present application.

Fig. 5 illustrates a control schematic diagram of a heat dissipation system according to an embodiment of the present application.

Fig. 6 is a flowchart illustrating a method for controlling a heat dissipation apparatus according to an embodiment of the present application.

Fig. 7 shows an architectural diagram of a data center according to an embodiment of the application.

Description of reference numerals:

the related technology comprises the following steps: 1-a filler; 2-cooler coils;

the application: 100-heat dissipation equipment; 111-a fan; 120-a heat-dissipating coil; 130-isenthalpic humidifier; 131-a container; 132-a wet film; 133-a coolant tube; 134-a first regulating valve; 140-liquid sprayer; 141-a second regulating valve; 200-a heat dissipation system; 210-a controller; 220-a server; 230-a first client; 240-a second client; 250-a switch; 300-data center.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and it will be appreciated by those skilled in the art that similar developments may be made without departing from the spirit and scope of the application, and therefore the application is not limited to the embodiments disclosed below.

The following terms are used herein

Dry cooling: and heat is removed from the system by sensible heat exchange.

And (3) evaporation cooling: the principle of operation is the evaporation of water, which absorbs heat from the incoming air and evaporates, cooling the air and increasing its humidity.

Enthalpy humidification: the isenthalpic humidification process is a cooling humidification process, in the process, the moisture content of air is increased, the relative humidity is increased, when water is changed into vapor from small liquid drops, the heat in the air is absorbed, the temperature of the air is reduced, the enthalpy value of the air is kept unchanged before and after humidification, humidification is carried out through the evaporation process of the water, although the humidity is increased, the heat is absorbed by the water in the evaporation process, the sensible heat is reduced, and the total enthalpy value of the system is kept unchanged.

Data center Water resource utilization efficiency (Water Usage efficiency, WUE): the ratio of the total water consumption of the data center to the power consumption of IT equipment (such as a server) of the data center is a general annual average WUE value. The smaller the WUE value, the more efficient the data center is in utilizing water resources. The formula for WUE is: WUE = (Sigma L) _{Total water consumption} )/ΣP _IT . In the formula, Σ L _{Total water consumption} The unit is L for the total water consumption input into the data center; sigma P _IT The unit is the electric power consumption of IT equipment in the data center, and is kWh.

And (3) online maintenance: any component of the system can be replaced or maintained without affecting the operation of the system.

Example one

The data centers comprise a financial data center, an enterprise data center and an internet cloud data center. With the rapid growth of cloud computing, big data, artificial Intelligence (AI), video on demand and other services, the internet cloud data center has larger and larger scale, the number of users has increased dramatically, and the internet data center has raised higher requirements for the stability, high efficiency, flexibility and safety of the server.

In the related art, the outdoor heat dissipation device of the data center is usually an open cooling tower or a closed cooling tower, and both the open cooling tower and the closed cooling tower use water as a circulating coolant, absorb heat from the data center, and discharge the heat to the atmosphere to reduce the water temperature.

Fig. 1 shows a schematic view of an open cooling tower in the related art. As shown in fig. 1, the main cooling mode of the open cooling tower is direct evaporative cooling, and water is partially evaporated in the filler 1 and is cooled by outdoor air, so that the water temperature is reduced. Fig. 2 shows a schematic view of a closed cooling tower in the related art. As shown in fig. 2, the main cooling mode of the closed cooling tower is indirect evaporative cooling, outdoor water is evaporated on the cooler coil 2 and indirectly cools the water in the cooler coil 2 to reduce the temperature of the water in the cooler coil 2. The evaporative cooling works on the principle of water evaporation, which absorbs heat from the incoming air and evaporates, cooling the air and increasing its humidity.

However, the Water consumption of the open cooling tower and the closed cooling tower is large, and the Water resource utilization efficiency (WUE) of the data center is as high as 2.2L/kWh-2.6L/kWh under the condition that the Water supply temperature of the cooling Water is 33-35 ℃. The WUE is the ratio of the total water consumption of the data center to the power consumption of IT equipment (such as a server) of the data center, and is the average WUE value in general years. The smaller the WUE value, the more efficient the data center is in utilizing water resources. The formula for WUE is: WUE = (Sigma L) _{Total water consumption} )/ΣP _IT . In the formula, Σ L _{Total water consumption} The unit is L for the total water consumption input into the data center; sigma P _IT The unit is the power consumption of IT equipment in the data center, and is kWh.

The embodiment of the application provides a heat dissipation device 100. Fig. 3 shows a schematic structural diagram of the heat dissipation apparatus 100 according to an embodiment of the present application. As shown in fig. 3, the heat sink apparatus 100 includes a housing, a heat sink coil 120, an isenthalpic humidifier 130, and a sparger 140.

Specifically, a fan 111 is provided in the housing to form a heat dissipation air duct in the housing. The heat dissipation coil 120 is disposed in the heat dissipation air duct, and a cooling fluid channel for flowing the first cooling fluid is defined inside the heat dissipation coil 120.

Illustratively, an air inlet and an air outlet can be formed on the shell, and both the air inlet and the air outlet are communicated with the heat dissipation air duct. The blower 111 is disposed at the air outlet. The first cooling liquid may be cooling water. The input end of the coolant flow channel may be a Cooling Water Return (CWR) end, and the output end of the coolant flow channel may be a Cooling Water Supply (CWS) end. The high-temperature cooling water flows into the cooling liquid flow passage from the input end of the cooling liquid flow passage. Under the condition that the fan 111 operates, outdoor cold air enters from the air inlet and flows along the heat dissipation air channel, and under the condition that the outdoor cold air flows through the heat dissipation coil 120, the cold air and high-temperature cooling water in the cooling liquid flow channel perform sensible heat exchange, so that the temperature of the cooling water in the cooling liquid flow channel is reduced, and the temperature of the cooling water flowing out of the output end of the cooling liquid flow channel is lower. The cooling process is dry cooling, namely heat is removed by utilizing a sensible heat exchange mode.

Illustratively, the fan 111 may be an Electronic Commutation (EC) fan. The blower 111 may include a fan and a motor for driving the fan to rotate. The motor may be a three-phase ac permanent magnet synchronous motor, but is not limited thereto.

The isenthalpic humidifier 130 is disposed in the cooling air duct, and the isenthalpic humidifier 130 is located upstream of the cooling coil 120 in the direction of air flow in the cooling air duct. That is, when the isenthalpic humidifier 130 is turned on, the air flowing into the heat dissipation air duct is cooled by the isenthalpic humidifier 130 and then flows through the heat dissipation coil 120 to exchange heat with the first cooling liquid in the cooling liquid flow passage, so as to reduce the temperature of the first cooling liquid.

Wherein, the isenthalpic humidifying process is a cooling and humidifying process. In the process, the moisture content of the air is increased, the relative humidity is increased, and when the water is changed into water vapor from the small liquid droplets, the heat in the air is absorbed, so that the temperature of the air is reduced. The enthalpy value of the air is kept unchanged before and after humidification, humidification is carried out through the evaporation process of the water, the humidity is increased, the water absorbs heat in the evaporation process, the sensible heat is reduced, and therefore the total enthalpy value is kept unchanged.

Illustratively, in the case where the fan 111 and the isenthalpic humidifier 130 are operated, the outdoor air enters the heat dissipation air duct from the air inlet, and first passes through the isenthalpic humidifier 130 to exchange latent heat with the isenthalpic humidifier 130, thereby reducing the temperature of the air and increasing the humidity of the air. The air after heat exchange with the isenthalpic humidifier 130 continuously flows along the heat dissipation air duct, then flows through the heat dissipation coil 120, and performs sensible heat exchange with the cooling water in the cooling liquid flow passage, thereby reducing the temperature of the cooling water in the cooling liquid flow passage.

The liquid sprayer 140 is disposed in the heat dissipation air duct, and the liquid sprayer 140 is located downstream of the isenthalpic humidifier 130 along the air flow direction in the heat dissipation air duct. The liquid sprayer 140 is used for spraying liquid, and the liquid sprayed by the liquid sprayer 140 may be tiny liquid water drops (i.e. water mist) or a liquid column.

For example, in an area with a large dry-wet bulb temperature difference, the liquid sprayer 140 may be used to spray water mist into the heat dissipation air duct to reduce the air temperature in the heat dissipation air duct. In this case, the liquid sprayer 140 may be located between the heat dissipation coil 120 and the isenthalpic humidifier 130 in the air flowing direction in the heat dissipation duct. In areas with small wet-dry bulb temperature differences, the sprayer 140 may be used to spray a liquid column, such as a water column, onto the surface of the cooling coil 120, and may absorb heat from the cooling water in the cooling fluid channel during evaporation of the cooling water on the surface of the cooling coil 120. In the case where the sprayer 140 is used to spray the liquid column onto the surface of the radiator coil 120, the time for the sprayer 140 to spray the radiator coil 120 in one year may be 200 hours or less to protect the radiator coil 120, but is not limited thereto. In the following description of the present application, the liquid sprayer 140 is used to spray a liquid column onto the surface of the cooling coil 120.

In the case where the blower 111, the isenthalpic humidifier 130, and the liquid ejector 140 are all operated, the outdoor air entering from the air inlet first performs latent heat exchange with the isenthalpic humidifier 130, and then performs sensible heat exchange with the cooling water in the cooling liquid flow passage while passing through the heat dissipation coil 120, so as to lower the temperature of the cooling water in the cooling liquid flow passage. The sprayer 140 may spray a water column onto the surface of the heat dissipation coil 120, and may perform indirect evaporative cooling on the cooling water in the heat dissipation coil 120 during the evaporation process of the cooling water on the surface of the heat dissipation coil 120. Therefore, three cooling modes, namely dry cooling, isenthalpic humidifier 130 cooling and liquid sprayer 140 cooling, are integrated in the heat dissipation device 100, so that the temperature of the first cooling liquid in the heat dissipation coil 120 can be effectively reduced to a set temperature, and the cooling efficiency of the heat dissipation device 100 is improved.

When the heat dissipation apparatus 100 is in the heat dissipation mode, the blower 111 is kept on, and the isenthalpic humidifier 130 and the liquid sprayer 140 are configured to be turned on or off. The "heat dissipation mode" is a mode in which the heat dissipation apparatus 100 normally operates, such as a mode in which the whole heat dissipation apparatus 100 or the fan 111 can normally operate. When the whole heat dissipation device 100 fails or the fan 111 fails or the heat dissipation device 100 is in a maintenance state, the heat dissipation device 100 is in a non-heat dissipation mode, and the fan 111 may be turned off.

For example, when the heat dissipation apparatus 100 is in the heat dissipation mode, the outdoor air temperature is low when the current season is spring, autumn, and winter, and the isenthalpic humidifier 130 and the liquid sprayer 140 may be configured to be turned off. Outdoor cold air enters the heat dissipation air channel from the air inlet under the action of the fan 111, and after sensible heat exchange is carried out between the outdoor cold air and cooling water in the cooling liquid flow channel, the air temperature rises, and the cooling water temperature in the cooling liquid flow channel decreases. And finally discharging the air subjected to heat exchange from the air outlet. Therefore, while the supply temperature of the cooling water is effectively reduced to the set temperature, the cooling method of the heat sink 100 is dry cooling, and water is not consumed in the cooling process, thereby saving water resources.

In a case where only the blower 111 is turned on and the supply water temperature of the cooling water cannot be lowered to the set temperature in a relatively low temperature period in summer, one of the isenthalpic humidifier 130 and the liquid sprayer 140 may be configured to be turned on and the other may be configured to be turned off. When the isenthalpic humidifier 130 is turned on and the liquid sprayer 140 is turned off, the outdoor air entering the heat dissipation air duct from the air inlet first passes through the isenthalpic humidifier 130 to exchange latent heat with the isenthalpic humidifier 130, so that the temperature of the air is reduced and the air is converted into low-temperature air. The low-temperature air, after passing through the heat radiating coil 120, performs sensible heat exchange with the cooling water in the cooling water flow passage, thereby reducing the temperature of the cooling water in the cooling water flow passage. With the sprayer 140 turned on and the isenthalpic humidifier 130 turned off, the outdoor air entering the heat dissipation duct from the air inlet performs sensible heat exchange with the cooling water in the heat dissipation coil 120. Meanwhile, the liquid sprayer 140 sprays cooling water to the surface of the heat dissipation coil 120, and the cooling water on the surface of the heat dissipation coil 120 evaporates, so that indirect evaporative cooling can be performed on the cooling water in the cooling liquid flow channel. In this way, the supply temperature of the cooling water can be reduced to the set temperature, and one of the isenthalpic humidifier 130 and the liquid sprayer 140 is opened, so that the water consumption is low.

During high temperature periods in the summer, both the isenthalpic humidifier 130 and the liquid spray 140 may be configured to be on. Thus, the outdoor air can exchange heat with the cooling water in the cooling liquid flow channel after being cooled by the isenthalpic humidifier 130, and the liquid sprayer 140 can perform indirect evaporative cooling on the cooling water in the cooling liquid flow channel, so that the cooling water in the cooling liquid flow channel can be cooled in a triple manner, the temperature of the cooling water in the cooling liquid flow channel is effectively reduced, and the water supply temperature of the cooling water can be reduced to a set temperature.

According to the heat dissipation apparatus 100 of the embodiment of the application, when the heat dissipation apparatus 100 is in the heat dissipation mode, the fan 111 can be kept on, and the isenthalpic humidifier 130 and the liquid sprayer 140 only need to be turned on under the condition that the water supply temperature of the cooling water cannot be reduced to the set temperature by dry cooling, so that the water consumption of the heat dissipation apparatus 100 can be reduced to the greatest extent, the water resource is saved, the WUE value is reduced, and the efficiency of utilizing the water resource by the data center is improved. For example, in the case of cooling water supply temperatures of 33 ℃ to 35 ℃, the WUE of the data center can be reduced to 0.1L/kWh.

In one embodiment, as shown in fig. 3, the isenthalpic humidifier 130 includes a container 131, a wet film 132, and a coolant tube 133. Wherein the second cooling liquid is contained in the container 131. The bottom of the wet film 132 is located inside the container 131 and may be in contact with the second cooling liquid, and the top of the wet film 132 is located outside the container 131. The cooling liquid pipe 133 communicates with the container 131 to output the second cooling liquid in the container 131 onto the wet film 132.

The second cooling liquid may be cooling water, for example. An input end of the cooling liquid pipe 133 may be connected to an output end of the container 131, and an output end of the cooling liquid pipe 133 may be positioned above the wet film 132. A pump may be provided on the cooling liquid pipe 133. Under the pumping action of the pump, the cooling water in the container 131 flows into the input end of the cooling liquid pipe 133 from the output end of the container 131, and finally flows out from the output end of the cooling liquid pipe 133. The output end of the cooling liquid pipe 133 may be provided with a water distributor, which may distribute the cooling water uniformly, so that the cooling water flows from top to bottom along the wet film 132 under the action of gravity, and wets the wet film 132. As the air passes through the wet, moist membrane 132, the humidity of the air increases and the temperature decreases, effecting indirect evaporative cooling of the air. The cooling water that has not evaporated and has flowed down from the surface of the wet film 132 can flow into the container 131, and the circulation of the cooling water is realized. Wherein the input end of the container 131 can be connected to a water source to supplement the cooling water in the container 131.

In the embodiment of the present application, through setting up foretell container 131, wet membrane 132 and coolant liquid pipe 133, under the condition that isenthalpic humidifier 130 was opened, can effectively reduce the air temperature of wet membrane 132 of flowing through, realize the preliminary cooling humidification to the air to guarantee that the water supply temperature of cooling water can reach the settlement temperature. Moreover, the water flowing into the container 131 from the top of the wet film 132 can be recycled, so that water resources can be further saved, and the water consumption of the whole heat dissipation device 100 can be reduced.

In one embodiment, the input end of the container 131 is provided with a first adjusting valve 134 to adjust the amount of humidification of the isenthalpic humidifier 130, and the input end of the liquid sprayer 140 is provided with a second adjusting valve 141 to adjust the amount of spraying liquid of the liquid sprayer 140.

For example, a first delivery line may be connected between the input end of the container 131 and the water source, and the first regulating valve 134 may be disposed on the first delivery line. The flow rate of the cooling water flowing into the container 131 can be adjusted by adjusting the opening degree of the first adjustment valve 134, and the flow rate of the cooling water flowing to the wet film 132 is adjusted, thereby adjusting the amount of humidification and the amount of cooling of the air by the wet film 132. Specifically, the larger the opening degree of the first regulating valve 134, the larger the flow rate of the cooling water flowing into the container 131, and the larger the flow rate of the cooling water flowing to the wet film 132, so that the amount of humidification and the amount of temperature decrease of the air by the wet film 132 become larger. The smaller the opening degree of the first regulating valve 134, the smaller the flow rate of the cooling water flowing into the container 131, and the smaller the flow rate of the cooling water flowing to the wet film 132, so that the amount of humidification and the amount of temperature decrease of the air by the wet film 132 are reduced. A second delivery pipe may be connected between the input end of the sprayer 140 and the water source, and a second adjustment valve 141 may be disposed on the second delivery pipe. The amount of water sprayed from the sprayer 140 can be adjusted by adjusting the opening of the second adjustment valve 141, thereby adjusting the amount of heat absorbed by the cooling water on the surface of the cooling coil 120. Specifically, the larger the opening degree of the second adjustment valve 141 is, the larger the amount of water sprayed from the sprayer 140 is, and the larger the amount of heat absorbed by the cooling water on the surface of the heat-radiating coil 120 is. The smaller the opening degree of the second adjustment valve 141 is, the smaller the amount of water sprayed from the sprayer 140 is, and the smaller the amount of heat absorbed by the cooling water on the surface of the radiator coil 120 is.

The first and second regulating

valves

134 and 141 may be electric regulating valves, but are not limited thereto. It will be understood by those skilled in the art that the first and second regulating

valves

134 and 141 may be other types of regulating valves as long as the amount of humidification of the isenthalpic humidifier 130 and the amount of liquid spray of the liquid spray 140 can be regulated.

Thus, by providing the first and second adjusting

valves

134 and 141, when the isenthalpic humidifier 130 is open, the first adjusting valve 134 can effectively adjust the amount of humidification and the amount of cooling of the air by the isenthalpic humidifier 130, thereby adjusting the temperature of the first coolant in the coolant flow passage. Under the condition that the liquid sprayer 140 is opened, the second adjusting valve 141 can effectively adjust the liquid spraying amount of the liquid sprayer 140, so as to adjust the heat absorption amount of the liquid on the surface of the heat dissipation coil 120, and the water supply temperature of the cooling water can meet the set temperature.

In one embodiment, in the case that the temperature of the first coolant at the output end of the coolant flow channel is greater than the first temperature threshold, the component control priority order of the heat dissipation apparatus 100 is: the rotating speed of the fan 111 is increased, the start of the isenthalpic humidifier 130 is controlled, and the start of the liquid sprayer 140 is controlled. Wherein the components include a blower 111, an isenthalpic humidifier 130, and a sparger 140. That is, in order to achieve the desired heat dissipation effect of the heat dissipation apparatus 100 (e.g., to make the first coolant temperature less than or equal to the first temperature threshold), the control priority for increasing the rotation speed of the fan 111 is greater than the control priority for controlling the isenthalpic humidifier 130 to be turned on, and the control priority for controlling the isenthalpic humidifier 130 to be turned on is greater than the control priority for controlling the liquid injector 140 to be turned on. The first cooling liquid temperature at the output end of the cooling liquid flow passage is the water supply temperature of the cooling water.

For example, in the case that the supply water temperature of the cooling water is greater than the first temperature threshold, the rotation speed of the fan 111 may be first increased to allow more air to perform sensible heat exchange with the cooling water in the cooling liquid flow passage, so as to reduce the temperature of the cooling water in the cooling liquid flow passage and reduce the supply water temperature of the cooling water. When the rotating speed of the fan 111 reaches the maximum rotating speed, the fan 111 is in the maximum cooling capacity, and if the water supply temperature of the cooling water is still greater than the first temperature threshold value at the moment, the isenthalpic humidifier 130 can be controlled to be opened, so that the isenthalpic humidifier 130 can cool the air entering the heat dissipation air duct, and the water supply temperature of the cooling water is reduced. Under the condition that the fan 111 and the isenthalpic humidifier 130 are both at the maximum cooling capacity, if the water supply temperature of the cooling water is still greater than the first temperature threshold value, the liquid sprayer 140 is controlled to be opened, so that the liquid sprayer 140 sprays the cooling water to the surface of the heat dissipation coil 120, and the water supply temperature of the cooling water is further reduced.

For example, the first temperature threshold may be 1 ℃ higher than the set temperature. For example, in the case where the set temperature is 33 ℃ to 35 ℃ (inclusive), the first temperature threshold may be 34 ℃ to 36 ℃ (inclusive), but is not limited thereto.

In the embodiment of the present application, when the rotation speed of the fan 111 is increased to reduce the water supply temperature of the cooling water to be lower than the first temperature threshold, the isenthalpic humidifier 130 and the liquid sprayer 140 do not need to be started; when the isenthalpic humidifier 130 is turned on to lower the supply temperature of the cooling water to the first temperature threshold value or less, the liquid sprayer 140 does not need to be turned on, so that the water consumption of the heat dissipation apparatus 100 can be reduced to the maximum extent, and the efficiency of the data center in utilizing the water resource is improved. In addition, in the annual use process of the heat dissipation apparatus 100, the opening time of the liquid sprayer 140 is the shortest, and the spraying time of the heat dissipation coil 120 can be reduced under the condition that the liquid sprayer 140 is used for spraying the liquid column on the surface of the heat dissipation coil 120, so that the corrosion speed of the heat dissipation coil 120 is effectively reduced, and the service life of the heat dissipation coil 120 is prolonged.

In one embodiment, in the case that the temperature of the first coolant at the output end of the coolant flow channel is greater than the first temperature threshold, the rotation speed of the fan 111 is increased; controlling the isenthalpic humidifier 130 to be started under the condition that the rotating speed of the fan 111 is higher than the rotating speed threshold value and the temperature of the first cooling liquid at the output end of the cooling liquid flow channel is continuously greater than the first temperature threshold value within a first preset time period; under the condition that the humidification amount of the isenthalpic humidifier 130 is higher than the first humidification amount threshold value and the temperature of the first cooling liquid at the output end of the cooling liquid flow channel is continuously higher than the first temperature threshold value within a first preset time period, the liquid sprayer 140 is controlled to be opened.

For example, in the case that the supply water temperature of the cooling water is greater than the first temperature threshold, the rotation speed of the fan 111 is first increased, so that more air can be sensible-heat exchanged with the cooling water in the cooling liquid flow passage, thereby lowering the supply water temperature of the cooling water. When the fan 111 speed is above the speed threshold (e.g., the maximum speed has been reached), the fan 111 is at a maximum cooling capacity. If the water supply temperature of the cooling water is still greater than the first temperature threshold value at the moment and lasts for a first preset time, it is indicated that the cooling requirement of the cooling water cannot be met only by adopting dry cooling. At this time, the isenthalpic humidifier 130 is controlled to be opened, so that the isenthalpic humidifier 130 can cool the air entering the heat dissipation air duct. By adjusting the opening degree of the first adjustment valve 134, the amount of cooling of the air by the wet film 132, that is, the cooling capacity of the isenthalpic humidifier 130 can be adjusted. When the opening degree of the first regulating valve 134 is regulated to 100%, the humidification amount of the isenthalpic humidifier 130 is higher than the first humidification amount threshold, and the isenthalpic humidifier 130 is at the maximum cooling capacity. If the supply water temperature of the cooling water is still greater than the first temperature threshold for the first preset time period, it indicates that the cooling requirement of the cooling water cannot be met by using the dry cooling and the isenthalpic humidifier 130 for cooling. At this time, the liquid sprayer 140 is controlled to be opened, so that the liquid sprayer 140 can further cool the cooling water in the cooling liquid channel. The water spraying amount of the sprayer 140 can be adjusted by adjusting the opening degree of the second adjusting valve 141, so that the heat absorption amount of the cooling water on the surface of the heat dissipation coil 120 to the cooling water in the cooling liquid channel is adjusted, and the water supply temperature of the cooling water can meet the set temperature.

Illustratively, the first preset time period may be 5 minutes, but is not limited thereto.

In the embodiment of the present application, the isenthalpic humidifier 130 is turned on when the rotation speed of the fan 111 is higher than the rotation speed threshold and the first coolant temperature at the output end of the coolant flow channel is continuously greater than the first temperature threshold within the first preset time period, and the liquid spraying device 140 is turned on when the humidification amount of the isenthalpic humidifier 130 is higher than the first humidification amount threshold and the first coolant temperature at the output end of the coolant flow channel is continuously greater than the first temperature threshold within the first preset time period, so that the water consumption of the heat dissipation apparatus 100 is reduced to the maximum extent, and meanwhile, the situation that the isenthalpic humidifier 130 or the liquid spraying device 140 is turned on by mistake due to temporary fluctuation of the first coolant temperature at the output end of the coolant flow channel can be avoided, and the accuracy and reliability of turning on the isenthalpic humidifier 130 and the liquid spraying device 140 are improved.

In one embodiment, in the case that the temperature of the first coolant at the output end of the coolant flow channel is lower than the second temperature threshold, the component control priority order of the heat dissipation apparatus 100 is: the liquid sprayer 140 is controlled to be closed, the isenthalpic humidifier 130 is controlled to be closed, and the rotating speed of the fan 111 is adjusted to be low. For example, the second temperature threshold may be lower than the first temperature threshold, for example, the second temperature threshold may be 1 ℃ lower than the set temperature. In the case where the set temperature is 33 deg.c to 35 deg.c, inclusive, the second temperature threshold may be 32 deg.c to 34 deg.c, inclusive, but is not limited thereto.

In the embodiment of the present application, on the one hand, when the temperature of the first coolant at the output end of the coolant flow channel is less than the second temperature threshold, the liquid sprayer 140 is preferentially turned off, so as to reduce the turn-on time of the liquid sprayer 140, slow down the corrosion rate of the heat dissipation coil 120, and prolong the service life of the heat dissipation coil 120. On the other hand, by setting the priority for controlling the isenthalpic humidifier 130 to be turned off higher than the priority for turning down the rotation speed of the fan 111, the water consumption of the heat sink apparatus 100 can be reduced to the maximum extent, and the efficiency of the data center in using water resources can be further improved.

In one embodiment, the sprayer 140 is controlled to be closed when the spraying amount of the sprayer 140 is lower than the spraying amount threshold value and the temperature of the first cooling liquid at the output end of the cooling liquid flow passage is continuously lower than the second temperature threshold value within a second preset time period; under the conditions that the liquid sprayer 140 is closed, the humidification amount of the isenthalpic humidifier 130 is lower than a second humidification amount threshold value, and the temperature of the first cooling liquid at the output end of the cooling liquid flow channel is continuously lower than a second temperature threshold value within a second preset time period, controlling the isenthalpic humidifier 130 to be closed; and in the case that the isenthalpic humidifier 130 is closed and the temperature of the first cooling liquid at the output end of the cooling liquid flow channel is lower than the second temperature threshold value, the rotating speed of the fan 111 is reduced.

For example, in the case that both the isenthalpic humidifier 130 and the liquid spray device 140 are turned on and the supply water temperature of the cooling water is less than the second temperature threshold, the opening degree of the second adjusting valve 141 may be first adjusted to decrease the heat absorption amount of the cooling water in the cooling liquid flow passage by the liquid spray device 140. When the opening degree of the second regulating valve 141 is regulated to a minimum (e.g., 10%), the amount of the liquid spray 140 is lower than the threshold amount of the liquid spray, and the liquid spray 140 is at a minimum cooling capacity. If the supply water temperature of the cooling water is still less than the second temperature threshold for a second preset time period, the liquid sprayer 140 is controlled to be closed, so as to reduce the cooling capacity of the heat sink apparatus 100. At this time, the amount of temperature reduction of the air by the wet film 132, that is, the cooling capacity of the isenthalpic humidifier 130 can be adjusted by adjusting the opening degree of the first adjustment valve 134. When the opening degree of the first regulating valve 134 is regulated to the minimum (e.g., 10%), the humidification amount of the isenthalpic humidifier 130 is lower than the second humidification amount threshold, and the isenthalpic humidifier 130 is at the minimum cooling capacity. If the supply water temperature of the cooling water is still less than the second temperature threshold for a second preset time, the isenthalpic humidifier 130 is controlled to be turned off, so that the cooling capacity of the heat sink apparatus 100 is further reduced. At this time, the water supply temperature of the cooling water can be adjusted by adjusting the rotation speed of the fan 111, so that the water supply temperature of the cooling water can meet the set temperature.

Wherein the second humidification amount threshold is less than the first humidification amount threshold. The second preset time period may be longer than the first preset time period, for example, the second preset time period may be 2 hours, but is not limited thereto.

In the embodiment of the present application, the liquid spraying device 140 is turned off when the liquid spraying amount is less than the liquid spraying amount threshold and the temperature of the first coolant at the output end of the coolant flow channel is continuously less than the second temperature threshold within the second preset time period, and the isenthalpic humidifier 130 is turned off when the humidification amount is less than the second humidification amount threshold and the temperature of the first coolant at the output end of the coolant flow channel is continuously less than the second temperature threshold within the second preset time period, so that the water consumption of the heat dissipation device 100 is reduced to the maximum extent, meanwhile, the situation that the isenthalpic humidifier 130 or the liquid spraying device 140 is turned off by mistake due to temporary fluctuation of the temperature of the first coolant at the output end of the coolant flow channel can be avoided, and the accuracy and reliability of turning off the isenthalpic humidifier 130 and the liquid spraying device 140 are improved.

Example two

The embodiment of the present application provides a heat dissipation system 200. Fig. 4A shows an architecture diagram of a heat dissipation system 200 according to an embodiment of the present application. Referring to fig. 3 and 4A, the heat dissipation system 200 includes the heat dissipation device 100 of any embodiment of the first aspect described above and a controller 210. The controller 210 is electrically connected to the fan 111, the isenthalpic humidifier 130, and the liquid sprayer 140 of the heat dissipation apparatus 100, and the controller 210 is configured to control a rotation speed of the fan 111 and control on/off of the isenthalpic humidifier 130 and the liquid sprayer 140 according to a temperature of the first coolant at an output end of the coolant flow channel.

Illustratively, the controller 210 may be electrically connected to the first and

second dampers

134, 141 and the motor of the blower 111. The controller 210 may adjust the rotation speed of the motor according to the supply water temperature of the cooling water, thereby adjusting the rotation speed of the blower 111. The controller 210 may also control the opening degrees of the first and

second control valves

134 and 141 according to the supply water temperature of the cooling water, thereby adjusting the humidification amount of the isenthalpic humidifier 130 and the liquid spray amount of the liquid spray 140, and further adjusting the supply water temperature of the cooling water to a set temperature.

According to the heat dissipation system 200 of the embodiment of the application, by using the heat dissipation apparatus 100 described above and electrically connecting the controller 210 to the fan 111, the isenthalpic humidifier 130 and the liquid sprayer 140 of the heat dissipation apparatus 100, the controller 210 can control the rotation speed of the fan 111 and the on/off of the isenthalpic humidifier 130 and the liquid sprayer 140 according to the first coolant temperature at the output end of the coolant flow channel, so as to automatically reduce the first coolant temperature inside the heat dissipation coil 120 to the set temperature.

In one embodiment, referring to fig. 3 and 4A, the fans 111, the heat dissipation coil 120, the isenthalpic humidifiers 130, the liquid sprayers 140, and the controller 210 are all multiple, the fans 111 form multiple fan sets, the isenthalpic humidifiers 130 form multiple humidifier sets, and the liquid sprayers 140 form multiple liquid spray sets. The plurality of heat dissipation coils 120, the plurality of fan sets, the plurality of humidifier sets, the plurality of spray sets, and the plurality of controllers 210 correspond one-to-one. Wherein, the plurality of fans 111, the plurality of heat dissipation coils 120, the plurality of isenthalpic humidifiers 130, the plurality of liquid sprayers 140, and the plurality of controllers 210 are all independently arranged. Each set of blower unit may include a plurality of blowers 111, each set of humidifier unit may include a plurality of isenthalpic humidifiers 130, and each set of spray unit may include at least one sprayer 140. In the description of the present application, "a plurality" means two or more.

Illustratively, the plurality of heat-dissipating coils 120, the plurality of fan sets, the plurality of humidifier sets, the plurality of liquid spray sets, and the plurality of controllers 210 may be divided into a plurality of cooling sets, each cooling set including a corresponding set of fan sets, one heat-dissipating coil 120, one humidifier set, one liquid spray set, and one controller 210. The blower 111, the isenthalpic humidifier 130, and the shower 140 in each cooling group are controlled by a corresponding controller 210.

Illustratively, the heat sink apparatus 100 includes two sets of fan sets, two heat sink coils 120, two sets of humidifier sets, and two sets of spray sets. The number of fans 111 in the two fan sets may be the same. The two heat dissipating coils 120 may be formed in a "V" configuration. Accordingly, there may be two controllers 210, and each controller 210 may be electrically connected to the motor of the corresponding blower 111, the first regulating valve 134 of the corresponding isenthalpic humidifier 130, and the second regulating valve 141 of the corresponding sprayer 140. The data of each controller 210 can be accessed to the ethernet, and two controllers 210 can be connected in communication to realize data sharing. The controller 210 may have a hard-wired backup that ensures that both controllers 210 can still share data during an unexpected network outage. The data of the controller 210 may include the rotation speed data of the blower 111, the opening data of the first regulating valve 134, the opening data of the second regulating valve 141, and the like. The heat dissipation system 200 may maintain a current operating state when any one of the components (e.g., the blower 111, the first adjustment valve 134, the second adjustment valve 141, or the controller 210) fails. For example, when the controller 210 fails, the blower 111, the first regulating valve 134, and the second regulating valve 141 do not change the current state; when the fan 111 in any fan set fails, the other fans 111 can still work normally, so that the air can exchange heat with the first cooling liquid (such as cooling water) in the cooling liquid flow channel, and the water supply temperature of the cooling water is reduced.

Fig. 4B and 4C illustrate control point bitmaps of a controller of a heat dissipation system according to an embodiment of the present application. For example, the output end of the coolant flow passage may be provided with a temperature sensor. The two heat dissipation coils 120 are a first heat dissipation coil and a second heat dissipation coil, respectively; fans 111 in the two groups of fan sets are respectively a first fan and a second fan; the isenthalpic humidifiers 130 in the two humidifier groups are a first humidifier and a second humidifier respectively; the liquid sprayers 140 in the two liquid spraying groups are respectively a first liquid sprayer and a second liquid sprayer; the two controllers 210 are a first controller and a second controller, respectively. As shown in fig. 4B and 4C, each of the first controller and the second controller has a plurality of ports, each of which may be electrically connected by hard wiring to a corresponding temperature sensor, first regulating valve 134, second regulating valve 141, fan 111, or pump. The plurality of ports include an Analog Output (AO) port, an Analog Input (AI) port, a Digital Output (DO) port, and a Digital Input (DI) port.

The plurality of AO ports of the first controller are respectively used for sending an adjusting signal to the second adjusting valve 141 of the first liquid sprayer and sending a rotating speed adjusting signal to the first fan. The AI ports of the first controller may be respectively configured to receive a temperature signal fed back by the temperature sensor of the first heat dissipation coil, an opening degree signal fed back by the second adjusting valve 141 of the first liquid sprayer, and a rotation speed signal fed back by the first fan. The plurality of DO interfaces of the first controller are respectively used for sending an opening or closing command to the first regulating valve 134 of the first isenthalpic humidifier, sending a start-stop command to the pump of the first isenthalpic humidifier, and sending a start-stop command to the first fan. The plurality of DI interfaces of the first controller are used for receiving feedback signals of the open state and the closed state of the first regulating valve 134 of the first enthalpy humidifier, receiving feedback signals of the start-stop state of a pump of the first enthalpy humidifier, receiving feedback signals of the start-stop state of the first fan, and receiving alarm signals of the first fan.

Correspondingly, the plurality of AO ports of the second controller are respectively used for sending an adjusting signal to the second adjusting valve 141 of the second liquid sprayer and sending a rotating speed adjusting signal to the second fan. The AI ports of the second controller may be respectively configured to receive a temperature signal fed back by the temperature sensor of the second heat dissipation coil, an opening degree signal fed back by the second adjustment valve 141 of the second dispenser, and a rotation speed signal fed back by the second fan. The plurality of DO interfaces of the second controller are respectively used for sending an opening or closing command to the first regulating valve 134 of the second enthalpy humidifier, sending a start-stop command to the pump of the second enthalpy humidifier, and sending a start-stop command to the second fan. The plurality of DI interfaces of the second controller are used for receiving feedback signals of the opening state and the closing state of the first regulating valve 134 of the second enthalpy humidifier, receiving feedback signals of the starting and stopping state of a pump of the second enthalpy humidifier, receiving feedback signals of the starting and stopping state of the second fan, and receiving alarm signals of the second fan.

In the embodiment of the present application, the fans 111, the heat dissipation coils 120, the isenthalpic humidifiers 130, the liquid sprayers 140, and the controllers 210 are all independently arranged, each fan 111 can be independently started or stopped, each isenthalpic humidifier 130, each liquid sprayer 140, and each controller 210 can be independently operated, and when a subassembly in the middle of the fans fails, another part of the subassemblies can still normally operate, so that the failure of the whole heat dissipation system 200 can be avoided, it is ensured that the water supply temperature of the cooling water can meet the set temperature, and the reliability of the heat dissipation system 200 is effectively improved.

Fig. 5 shows a control schematic diagram of the heat dissipation system 200 according to an embodiment of the present application. In one embodiment, referring to fig. 3-5, heat dissipation system 200 further includes a server 220 and a first client 230 connected. The server 220 is in communication connection with the controller 210, and the first client 230 obtains the rotation speed of the blower 111 and the on/off states of the isenthalpic humidifier 130 and the liquid sprayer 140 from the controller 210 through the server 220.

Illustratively, the server 220 may be connected to the controller 210 via an ethernet cable. The controller 210 may be connected to the first and second regulating

valves

134 and 141 and the motor through signal lines. The controller 210, signal lines, and ethernet lines meet the on-line maintenance requirements. By "online maintenance" is meant that any component of the system can be replaced or maintained without affecting the operation of the system. When any one of the controller 210, the signal line and the ethernet line fails, the normal operation of the heat sink apparatus 100 is not affected. Multiple controllers 210 may be networked via ethernet to share data. Specifically, the system network may employ point-to-point communication over an ethernet network, and each controller 210 may have its own microprocessor that exchanges data with the other controllers 210 over the network. The failure of any controller 210 on the network does not affect the operation of the other controllers 210, and thus does not affect the system operation when the controller 210 is hot plugged in and out in an ethernet network.

In the embodiment of the present application, the operator may obtain the rotation speed of the blower 111 and the on or off states of the isenthalpic humidifier 130 and the liquid sprayer 140 through the first client 230.

In one embodiment, referring to fig. 3-5, the heat dissipation system 200 further includes a second client 240 and a switch 250. The switch 250 includes a plurality of first ports and a plurality of second ports, each of the first ports is connected to the corresponding server 220 and the second client 240, and each of the second ports is connected to the corresponding controller 210. For example, the server 220 and the corresponding first port, the second client 240 and the corresponding first port, and the second port and the controller 210 may be connected through ethernet lines. In a case where the server 220 operates normally, the first client 230 may access the controller 210 through the server 220 to acquire data of the controller 210. In the event of an unexpected interruption of the server 220, the second client 240 may directly access the controller 210 through an Internet Protocol (IP) Address, and may check and operate the blower 111, the isenthalpic humidifier 130, and the liquid sprayer 140 controlled by the controller 210.

In the embodiment of the present application, by providing the second client 240 and the switch 250, the switch 250 may be used to expand the ports, so that a greater number of controllers 210 can be connected to the same server 220, and the second client 240 may obtain data of the controller 210 in the case of a failure of the server 220, so that an operator may obtain the rotation speed of the fan 111 and the on or off states of the isenthalpic humidifier 130 and the liquid sprayer 140 through the second client 240.

EXAMPLE III

An embodiment of the present application provides a method for controlling a heat dissipation apparatus 100, which is applied to the heat dissipation apparatus 100 according to any of the foregoing first aspect embodiments of the present application. Fig. 6 is a flowchart illustrating a control method of the heat dissipation apparatus 100 according to an embodiment of the present application. As shown in fig. 6, the control method includes:

step S610: when the heat sink apparatus 100 is in the heat dissipation mode, the fan 111 is controlled to remain on, and the isenthalpic humidifier 130 and the liquid sprayer 140 are controlled to be turned on or off according to the first coolant temperature at the output end of the coolant flow channel of the heat sink apparatus 100.

Illustratively, the execution subject of the control method of the heat dissipating apparatus 100 may be the controller 210. When the heat sink 100 is in the heat dissipation mode, the controller 210 controls the fan 111 to be kept on, and controls the isenthalpic humidifier 130 and the liquid sprayer 140 to be turned on or off according to the first coolant temperature at the output end of the coolant flow channel of the heat sink 100.

Therefore, when the heat dissipation apparatus 100 is in the heat dissipation mode, the fan 111 may be kept on, and the isenthalpic humidifier 130 and the liquid spray 140 only need to be turned on when the dry cooling cannot reduce the water supply temperature of the cooling water to the set temperature, so that the water consumption of the heat dissipation apparatus 100 may be reduced to the maximum extent, thereby saving the water resource and improving the efficiency of the data center in using the water resource.

In one embodiment, controlling the fan 111 to be kept on and controlling the isenthalpic humidifier 130 and the liquid sprayer 140 to be turned on or off according to the first coolant temperature at the output end of the coolant flow channel of the heat sink apparatus 100 includes: under the condition that the first coolant temperature at the output end of the coolant flow channel is greater than a first temperature threshold, the heat dissipation apparatus 100 is controlled according to a first priority order, wherein the first priority order is: the rotating speed of the fan 111 is increased, the start of the isenthalpic humidifier 130 is controlled, and the start of the liquid sprayer 140 is controlled.

In the embodiment of the present application, when the rotation speed of the fan 111 is increased to reduce the water supply temperature of the cooling water to be lower than the first temperature threshold, the isenthalpic humidifier 130 and the liquid sprayer 140 do not need to be started; when the isenthalpic humidifier 130 is turned on to lower the supply water temperature of the cooling water to the first temperature threshold value or less, the liquid sprayer 140 does not need to be turned on, so that the water consumption of the heat dissipation apparatus 100 can be reduced to the maximum extent, and the efficiency of the data center in utilizing water resources is improved. In addition, in the annual use process of the heat dissipation apparatus 100, the opening time of the liquid sprayer 140 is the shortest, and the spraying time of the heat dissipation coil 120 can be reduced under the condition that the liquid sprayer 140 is used for spraying the liquid column on the surface of the heat dissipation coil 120, so that the corrosion speed of the heat dissipation coil 120 is effectively reduced, and the service life of the heat dissipation coil 120 is prolonged.

In one embodiment, controlling the fan 111 to be kept on and controlling the isenthalpic humidifier 130 and the liquid sprayer 140 to be turned on or off according to the first coolant temperature at the output end of the coolant flow channel of the heat sink apparatus 100 includes: and controlling the heat dissipation device 100 according to a second priority order when the temperature of the first coolant at the output end of the coolant flow channel is less than a second temperature threshold, wherein the second priority order is as follows: and controlling the liquid sprayer 140 to be closed, controlling the isenthalpic humidifier 130 to be closed, and regulating the rotating speed of the fan 111 to be low.

In the embodiment of the present application, on the one hand, when the temperature of the first coolant at the output end of the coolant flow channel is less than the second temperature threshold, the liquid sprayer 140 is preferentially turned off, so as to reduce the turn-on time of the liquid sprayer 140, slow down the corrosion rate of the heat dissipation coil 120, and prolong the service life of the heat dissipation coil 120. On the other hand, the priority for controlling the isenthalpic humidifier 130 to be turned off is higher than the priority for controlling the rotation speed of the down fan 111, so that the water consumption of the heat sink 100 can be reduced to the maximum extent, and the efficiency of the data center for utilizing water resources can be further improved.

Example four

The embodiment of the application provides a data center 300. Including the heat sink apparatus 100 of any of the above embodiments. Fig. 7 shows a schematic architecture diagram of a data center 300, and as shown in fig. 7, the data center 300 includes the heat dissipation system 200 according to any embodiment of the second aspect of the present application, and the data center 300 may be a financial data center, an enterprise data center, an internet cloud data center, and the like.

The heat dissipation apparatus 100, the heat dissipation system 200, the control method of the heat dissipation apparatus 100, and other components of the data center 300 according to the above embodiments may be applied to various technical solutions known by those skilled in the art now and in the future, and will not be described in detail herein.

In the description of the present specification, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise indirect contact of the first and second features through another feature in between. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

The above disclosure provides many different embodiments, or examples, for implementing different features of the application. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of various changes or substitutions within the technical scope of the present application, and these should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A heat dissipating device comprising:

the fan is arranged in the shell, so that a heat dissipation air channel is formed in the shell;

the heat dissipation coil is arranged in the heat dissipation air duct, and a cooling liquid flow channel for flowing of first cooling liquid is defined in the heat dissipation coil;

the isenthalpic humidifier is arranged in the heat dissipation air channel and is positioned at the upstream of the heat dissipation coil along the air flowing direction in the heat dissipation air channel;

the liquid sprayer is arranged in the heat dissipation air channel, and is positioned at the downstream of the isenthalpic humidifier along the air flowing direction in the heat dissipation air channel;

wherein, when the heat dissipation device is in a heat dissipation mode, the fan remains on, and the isenthalpic humidifier and the liquid sprayer are configured to be turned on or off.

2. The heat dissipation apparatus of claim 1, wherein, in the case that the temperature of the first coolant at the coolant flow channel output end is greater than a first temperature threshold, the component control priority order of the heat dissipation apparatus is: and increasing the rotating speed of the fan, controlling the isenthalpic humidifier to be started, and controlling the liquid sprayer to be started.

3. The heat dissipation apparatus of claim 2, wherein the rotational speed of the fan is increased when the temperature of the first coolant at the coolant flow path output is greater than a first temperature threshold;

controlling the isenthalpic humidifier to be started under the condition that the rotating speed of the fan is higher than a rotating speed threshold value and the temperature of first cooling liquid at the output end of the cooling liquid flow channel is greater than the first temperature threshold value within a first preset time period;

the humidification volume of isenthalpic humidifier is higher than first humidification volume threshold value and the first coolant temperature of coolant liquid runner output is in first predetermined duration is greater than under the condition of first temperature threshold value, control the hydrojet opens.

4. The heat dissipation apparatus of claim 1, wherein in the case that the temperature of the first coolant at the coolant flow channel output end is less than the second temperature threshold, the component control priority order of the heat dissipation apparatus is: and controlling the liquid sprayer to be closed, controlling the isenthalpic humidifier to be closed, and reducing the rotating speed of the fan.

5. The heat dissipation apparatus of claim 4, wherein the liquid sprayer is controlled to be closed when the liquid sprayer has a liquid spraying amount lower than a liquid spraying amount threshold and the first temperature of the first coolant at the output end of the coolant flow channel is less than the second temperature threshold within a second preset time period;

controlling the isenthalpic humidifier to be closed under the conditions that the liquid sprayer is closed, the humidification amount of the isenthalpic humidifier is lower than a second humidification amount threshold value, and the temperature of the first cooling liquid at the output end of the cooling liquid flow channel is smaller than a second temperature threshold value within a second preset time period;

and under the condition that the isenthalpic humidifier is closed and the temperature of the first cooling liquid at the output end of the cooling liquid flow channel is smaller than the second temperature threshold value, reducing the rotating speed of the fan.

6. The heat dissipating apparatus of any of claims 1 to 5, wherein the isenthalpic humidifier comprises:

a container containing a second coolant therein;

a wet film, the bottom of the wet film being located inside the container and the top of the wet film being located outside the container;

a coolant pipe in communication with the container to output the second coolant in the container onto the wet film.

7. The heat dissipating apparatus according to claim 6, wherein the input end of the container is provided with a first regulating valve to regulate the amount of humidification of the isenthalpic humidifier; and a second regulating valve is arranged at the input end of the liquid sprayer to regulate the liquid spraying amount of the liquid sprayer.

8. A heat dissipation system, comprising:

the heat dissipating apparatus of any of claims 1 to 7;

the controller is electrically connected with a fan, an isenthalpic humidifier and a liquid sprayer of the heat dissipation equipment and used for controlling the rotating speed of the fan and controlling the opening or closing of the isenthalpic humidifier and the liquid sprayer according to the temperature of the first cooling liquid at the output end of the cooling liquid flow channel.

9. The heat dissipating system of claim 8, further comprising:

the server is in communication connection with the controller, and the first client acquires the rotating speed of the fan and the opening or closing states of the isenthalpic humidifier and the liquid sprayer from the controller through the server.

10. The heat dissipating system of claim 9, further comprising:

a second client;

the switch comprises a plurality of first ports and a plurality of second ports, each first port is respectively connected with the corresponding server and the second client, and each second port is respectively connected with the corresponding controller.

11. A control method of a heat dissipating apparatus applied to the heat dissipating apparatus according to any one of claims 1 to 7, the control method comprising:

and when the heat dissipation equipment is in a heat dissipation mode, controlling the fan to be kept on, and controlling the isenthalpic humidifier and the liquid sprayer to be opened or closed according to the temperature of the first cooling liquid at the output end of the cooling liquid flow channel of the heat dissipation equipment.

12. The control method of claim 11, wherein controlling the fan to remain on and controlling the isenthalpic humidifier and the liquid injector to be on or off based on a first coolant temperature at an output of a coolant flow path of the heat sink comprises:

under the condition that the temperature of the first cooling liquid at the output end of the cooling liquid channel is greater than a first temperature threshold value, controlling the heat dissipation equipment according to a first priority order, wherein the first priority order is as follows: and increasing the rotating speed of the fan, controlling the isenthalpic humidifier to be started, and controlling the liquid sprayer to be started.

13. The control method of claim 11, wherein controlling the fan to remain on and controlling the isenthalpic humidifier and the liquid injector to be on or off based on a first coolant temperature at an output of a coolant flow path of the heat sink comprises:

controlling the heat dissipation device according to a second priority order when the temperature of the first coolant at the output end of the coolant flow channel is less than a second temperature threshold, wherein the second priority order is as follows: and controlling the liquid sprayer to be closed, controlling the isenthalpic humidifier to be closed, and reducing the rotating speed of the fan.

14. A data center comprising the heat dissipation system of any of claims 8-10.