Air conditioner control method and control system for data center and air conditioner

Abstract

The invention relates to the technical field of data center cooling, in particular to an air conditioner control method and system for a data center and an air conditioner. The air conditioner control method for the data center comprises an air duct and a nozzle, the nozzle is arranged in the air duct, and the spraying angle of the nozzle is an included angle formed by the spraying direction of the nozzle and an air supply outlet of the air duct; comprising the step of controlling at least one of the air speed in an air duct, the spraying flow of a nozzle and the spraying angle based on outdoor air conditions, so that outlet air of an air supply outlet of the air duct reaches the air supply conditions of the data center. The evaporative cooling air conditioner can adapt to data centers in different climate areas, a cold source is provided for the data center, the PUE of the data center is reduced, the free cooling time of the data center is prolonged, the cooling efficiency of the evaporative cooling air conditioner can be improved, and low-energy-consumption operation of the data center in an evaporative cooling air conditioner system is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of data center cooling, and in particular to an air conditioning control method, a control system and an air conditioner for a data center. Background Art

[0002] Evaporative cooling is an energy-efficient cooling technology that can provide sustainable and low-cost cooling capacity. It can provide a natural cooling source for data centers at extremely low energy consumption and extend the free cooling time of data centers. However, in actual projects, common data center evaporative cooling air conditioners are used to assist mechanical refrigeration or are used in low-humidity areas to reduce data center energy consumption. These methods have the following problems: (1) Using evaporative cooling to assist mechanical refrigeration can only improve the efficiency of the chiller to a certain extent, but cannot be separated from mechanical refrigeration. It still consumes a lot of energy and fails to fundamentally solve the cooling source problem of the data center. (2) Due to climatic conditions, when using evaporative cooling air conditioners to lower air temperature in high-humidity areas, there will be disadvantages of low cooling efficiency and high relative humidity of the air after cooling, which limits the application places, system forms and regions of evaporative cooling; (3) Under different climatic conditions, it is difficult for evaporative cooling air conditioners to control operation so that the cooled air meets the air supply conditions of the data center. The applicability of evaporative cooling air conditioners needs to be improved. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the related art. To this end, the present invention proposes an air conditioning control method, control system and air conditioning for a data center, which can enable evaporative cooling air conditioning to adapt to data centers in different climate regions, provide a cold source for the data center, reduce its PUE, extend the free cooling time of the data center, improve the cooling efficiency of the evaporative cooling air conditioning, and realize the operation of the data center in a low-energy evaporative cooling air conditioning system.

[0004] The invention also provides a control system.

[0005] The invention also provides an air conditioner.

[0006] According to the air conditioning control method for a data center in the first embodiment of the present invention, the air conditioner includes an air duct and a nozzle, the nozzle is arranged in the air duct, and the spray angle of the nozzle is the angle between the spray direction of the nozzle and the air supply port of the air duct, including: Based on outdoor air conditions, at least one of the wind speed in the air duct, the spray flow rate of the nozzle, and the spray angle is controlled so that the air outlet of the air supply port of the air duct meets the air supply condition of the data center.

[0007] The air conditioning control method for a data center according to an embodiment of the present invention is an operation control method that can improve the applicability of evaporative cooling air conditioning, obtain outdoor air conditions, and adjust at least one of the wind speed in the air duct, the spray flow rate of the nozzle, and the spray angle of the nozzle according to the outdoor air conditions, so as to cool the natural air entering the air duct so that the air outlet of the air duct can meet the air supply conditions required by the data center.

[0008] Therefore, in order to improve the adaptability of evaporative cooling air conditioners, the wind speed, spray flow rate and spray angle during evaporative cooling air treatment can be changed, that is, according to different outdoor air conditions, different adjustments can be made to the wind speed, spray flow rate and spray angle, so that the air conditioning operation of the data center can adapt to environmental changes. The evaporative cooling air conditioner can adapt to data centers in different climatic regions, provide a cold source for the data center, reduce its PUE, extend the free cooling time of the data center, improve the cooling efficiency of the evaporative cooling air conditioner, and realize the operation of the data center in a low-energy evaporative cooling air conditioning system.

[0009] Compared with the current application of evaporative cooling assisted mechanical refrigeration in data centers, the present invention proposes a method of using cold mist direct evaporative cooling air conditioners to process natural air to provide a cold source for data centers, and improving the applicability of evaporative cooling air conditioners by adjusting wind speed, spray flow and spray angle. This method not only increases the free cooling time of data centers under natural climates, but also reduces the cooling energy consumption and operating costs of data centers. At the same time, the method is easy to operate and is scientific and reasonable.

[0010] According to different regions, the wind speed, spray flow rate and spray angle of the evaporative cooling air conditioner can be adjusted to control the temperature and relative humidity of the treated air to meet the air supply requirements of the data center. Using the air conditioning operation control method proposed in the present invention in the data center can increase the free cooling time of the data center cluster by 3.16% to 20.45%, effectively reducing the cooling energy consumption of the data center and reducing the PUE of the data center.

[0011] According to an embodiment of the present invention, the controlling of at least one of the wind speed in the air duct, the spray flow rate of the nozzle, and the spray angle based on the outdoor air condition so that the air outlet of the air supply port of the air duct meets the air supply condition of the data center includes: Based on outdoor air conditions, obtain a set air conditioning mode; Based on the set air conditioning mode, the spray angle of the nozzle is adjusted first, then the wind speed in the air duct is adjusted, and finally the spray flow rate of the nozzle is adjusted.

[0012] According to an embodiment of the present invention, obtaining and setting the air conditioning mode based on the outdoor air condition includes: Get the relative humidity of outdoor air; Determine that the relative humidity of the outdoor air is greater than or equal to a set value, and obtain the return air mode; or determine that the relative humidity of the outdoor air is less than a set value, and obtain the fresh air mode.

[0013] According to an embodiment of the present invention, obtaining and setting the air conditioning mode based on the outdoor air condition includes: Get the outdoor air relative humidity and outdoor air temperature; Determine that the outdoor air relative humidity is greater than or equal to a first threshold and less than or equal to a second threshold, and the outdoor air temperature is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, and obtain a mild mode; Or, determine that the outdoor air relative humidity is less than a first threshold value, and the outdoor air temperature is greater than a second temperature threshold value; obtain a high temperature and low humidity mode; Or, determine that the outdoor air relative humidity is greater than a second threshold value, and the outdoor air temperature is greater than a second temperature threshold value; obtain a high temperature and high humidity mode.

[0014] According to an embodiment of the present invention, based on the set air conditioning mode, first adjusting the spray angle of the nozzle, then adjusting the wind speed in the air duct, and finally adjusting the spray flow rate of the nozzle includes: Based on the mild mode, adjusting the spray angle of the nozzle to a first set angle, adjusting the spray flow rate of the nozzle to a first set flow rate, and adjusting the wind speed in the air duct to a first set wind speed; Determine that the air temperature at the air outlet of the air duct is greater than or equal to a preset air supply temperature, and increase the wind speed in the air duct; Determine that the wind speed in the air duct is adjusted to a second set wind speed, and the air temperature at the air supply outlet of the air duct is greater than or equal to a preset air supply temperature, and increase the spray flow rate of the nozzle until the air temperature at the air supply outlet of the air duct is less than the preset air supply temperature.

[0015] According to an embodiment of the present invention, based on the set air conditioning mode, first adjusting the spray angle of the nozzle, then adjusting the wind speed in the air duct, and finally adjusting the spray flow rate of the nozzle includes: Based on the high temperature and low humidity mode, adjusting the spray angle of the nozzle to a first set angle, adjusting the spray flow rate of the nozzle to a first set flow rate, and adjusting the wind speed in the air duct to a second set wind speed; Determine that the air temperature at the air supply outlet of the air duct is greater than or equal to a preset air supply temperature, and increase the spray flow rate of the nozzle until the air temperature at the air supply outlet of the air duct is less than the preset air supply temperature.

[0016] According to an embodiment of the present invention, based on the set air conditioning mode, first adjusting the spray angle of the nozzle, then adjusting the wind speed in the air duct, and finally adjusting the spray flow rate of the nozzle includes: Based on the high temperature and high humidity mode, adjusting the spray angle of the nozzle to a second set angle, adjusting the spray flow rate of the nozzle to a first set flow rate, and adjusting the wind speed in the air duct to a second set wind speed; Determine that the air temperature at the air outlet of the air duct is greater than or equal to a preset air supply temperature, and increase the spray angle of the nozzle; Determine that the spray angle of the nozzle is adjusted to a first set angle, and the air temperature at the air supply outlet of the air duct is greater than or equal to a preset air supply temperature, and increase the spray flow rate of the nozzle until the air temperature at the air supply outlet of the air duct is less than the preset air supply temperature.

[0017] According to an embodiment of the present invention, determining that the air temperature at the air outlet of the air duct is greater than or equal to a preset air supply temperature and increasing the spray angle of the nozzle includes: Determine that the air temperature at the air outlet of the air duct is greater than or equal to the preset air supply temperature, and control the spray angle of the nozzle to gradually increase the preset angle, the preset angle is between 5° and 20°; the first set angle is between 45° and 90°.

[0018] The control system according to the second embodiment of the present invention executes the air conditioning control method for a data center as described above.

[0019] An air conditioner according to a third aspect of the present invention includes: An air duct, wherein the air duct is provided with an air inlet, an air supply outlet and a spray chamber, and the spray chamber is located between the air inlet and the air supply outlet; A spray assembly, the spray assembly comprising a spray head, a pipe and a driving component, the spray head is arranged at the top of the spray chamber near the air supply port, the pipe is located in the spray chamber and is perpendicular to the air flow direction in the spray chamber, and the driving component is connected to the pipe; a fan, the fan being adapted to supply air into the air duct; The control system as described above is connected to the fan and the driving component.

[0020] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: The air conditioning control method for a data center in an embodiment of the present invention is an operation control method that can improve the applicability of evaporative cooling air conditioning, obtain outdoor air conditions, and adjust at least one of the wind speed in the air duct, the spray flow rate of the nozzle, and the spray angle of the nozzle according to the outdoor air conditions, so as to cool the natural air entering the air duct so that the air outlet of the air duct can meet the air supply conditions required by the data center.

[0021] Therefore, in order to improve the adaptability of evaporative cooling air conditioners, the wind speed, spray flow rate and spray angle during evaporative cooling air treatment can be changed, that is, according to different outdoor air conditions, different adjustments can be made to the wind speed, spray flow rate and spray angle, so that the air conditioning operation of the data center can adapt to environmental changes. The evaporative cooling air conditioner can adapt to data centers in different climatic regions, provide a cold source for the data center, reduce its PUE, extend the free cooling time of the data center, improve the cooling efficiency of the evaporative cooling air conditioner, and realize the operation of the data center in a low-energy evaporative cooling air conditioning system.

[0022] Compared with the current application of evaporative cooling assisted mechanical refrigeration in data centers, the present invention proposes a method of using cold mist direct evaporative cooling air conditioners to process natural air to provide a cold source for data centers, and improving the applicability of evaporative cooling air conditioners by adjusting wind speed, spray flow and spray angle. This method not only increases the free cooling time of data centers under natural climates, but also reduces the cooling energy consumption and operating costs of data centers. At the same time, the method is easy to operate and is scientific and reasonable.

[0023] According to different regions, the wind speed, spray flow rate and spray angle of the evaporative cooling air conditioner can be adjusted to control the temperature and relative humidity of the treated air to meet the air supply requirements of the data center. Using the air conditioning operation control method proposed in the present invention in the data center can increase the free cooling time of the data center cluster by 3.16% to 20.45%, effectively reducing the cooling energy consumption of the data center and reducing the PUE of the data center.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 is a structural schematic diagram of an air conditioner provided by an embodiment of the present invention; Figure 2 is a schematic structural diagram of a nozzle of an air conditioner provided by an embodiment of the present invention; Figure 3 is a schematic diagram of a fresh air mode of an air conditioner for a data center provided by an embodiment of the present invention; Figure 4 is a schematic diagram of a return air mode of an air conditioner for a data center provided by an embodiment of the present invention; Figure 5 It is a schematic diagram of the structure of an electronic device provided by an embodiment of the present invention.

[0027] Reference numerals: 100, air duct; 110, air inlet; 120, air outlet; 130, spray chamber; 200. Spray assembly; 210. Spray head; 220. Pipeline. DETAILED DESCRIPTION

[0028] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0030] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0031] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0033] like Figure 1 and Figure 2 As shown, the air conditioner provided by the embodiment of the present invention includes an air duct 100, a spray assembly 200, a fan and a control system. The air duct 100 is provided with an air inlet 110, an air supply port 120 and a spray chamber 130, and the spray chamber 130 is located between the air inlet 110 and the air supply port 120; the spray assembly 200 includes a nozzle 210, a pipe 220 and a driving component, the nozzle 210 is arranged at the top of the spray chamber 130 on the side close to the air supply port 120, the pipe 220 is located in the spray chamber 130 and is perpendicular to the air flow direction in the spray chamber 130, and the driving component is connected to the pipe 220; the fan is suitable for supplying air into the air duct 100; the control system is connected to the fan and the driving component.

[0034] The air conditioner of the embodiment of the present invention is a cold mist type direct evaporative cooling air conditioner. The cold mist type direct evaporative cooling air conditioner constructs a spray chamber 130 in the air duct. The two ends of the air duct are respectively an air inlet 110 and an air outlet 120. The natural air is sent into the air duct by a fan for processing. The water is sprayed to the air through the nozzle 210 arranged in the spray chamber 130 to exchange heat with the air. The natural air after cooling is sent to the data center through the air outlet 120 to cool the computer room. Since the energy consumption of the refrigeration unit can only be reduced to a certain extent when evaporative cooling is used to assist mechanical compression refrigeration, the natural air can be cooled by a cold mist type direct evaporative cooling air conditioner with high refrigeration efficiency. The natural air that meets the conditions after cooling is directly sent to the computer room to cool the server, avoiding the high energy consumption of the refrigeration machine and effectively reducing the cooling energy consumption of the data center.

[0035] In this process, the present invention arranges the nozzle 210 at the upper end of the spray chamber 130 near the air outlet 120, and ensures that the spray direction of the nozzle 210 is always opposite to the air flow direction in the spray chamber 130, that is, the nozzle 210 sprays water mist to the position of the air inlet 110, and the nozzle 210 is arranged on the pipeline, and the pipeline is connected to the driving component, and the driving component specifically includes a motor driver and a water pump. The motor driver can drive the pipeline to rotate, thereby driving the nozzle 210 to rotate, changing the spray direction of the nozzle 210, and the water pump provides power for pumping water into the pipeline. The control system can control the rotation angle of the motor driver according to the corresponding control method, thereby controlling the rotation of the pipeline, that is, controlling the rotation of the nozzle 210, changing the spray angle A of the nozzle 210, controlling the pumping flow of the water pump, that is, changing the spray flow of the nozzle 210, and controlling the rotation speed of the fan, thereby adjusting the wind speed in the air duct 100.

[0036] Therefore, the cold mist direct evaporative cooling air conditioner of the present invention has no mechanical refrigeration intervention in the entire working process, and only the fan generates energy consumption, which greatly reduces the cooling energy consumption of the data center and reduces the PUE of the data center.

[0037] The air conditioning control method for a data center provided in an embodiment of the present invention includes an air duct 100 and a nozzle 210, the nozzle 210 is arranged in the air duct 100, and the spray angle A of the nozzle 210 is the angle between the spray direction of the nozzle 210 and the air supply port 120 of the air duct 100, including: Based on outdoor air conditions, at least one of the wind speed in the air duct 100, the spray flow rate of the nozzle 210, and the spray angle A is controlled so that the air outlet 120 of the air duct 100 meets the air supply condition of the data center.

[0038] The air conditioning control method for a data center in an embodiment of the present invention is an operation control method that can improve the applicability of evaporative cooling air conditioning, obtain outdoor air conditions, and adjust at least one of the wind speed in the air duct 100, the spray flow rate of the nozzle 210, and the spray angle A of the nozzle 210 according to the outdoor air conditions, so as to cool the natural air entering the air duct 100 so that the air outlet 120 of the air duct 100 meets the air supply conditions required by the data center.

[0039] Therefore, in order to improve the adaptability of evaporative cooling air conditioners, the wind speed, spray flow rate and spray angle A during evaporative cooling air treatment can be changed, that is, different adjustments can be made to the wind speed, spray flow rate and spray angle A according to different outdoor air conditions, so that the air conditioning operation of the data center can adapt to environmental changes. The evaporative cooling air conditioner can adapt to data centers in different climatic regions, provide a cold source for the data center, reduce its PUE, extend the free cooling time of the data center, improve the cooling efficiency of the evaporative cooling air conditioner, and realize the operation of the data center in a low-energy evaporative cooling air conditioning system.

[0040] Compared with the current application of evaporative cooling assisted mechanical refrigeration in data centers, the present invention proposes a method of using cold mist direct evaporative cooling air conditioners to process natural air to provide a cold source for data centers, and improving the applicability of evaporative cooling air conditioners by adjusting wind speed, spray flow rate and spray angle A. This method not only increases the free cooling time of data centers under natural climates, but also reduces the cooling energy consumption and operating costs of data centers. At the same time, the method is easy to operate and is scientific and reasonable.

[0041] For different regions, the wind speed, spray flow rate and spray angle A of the evaporative cooling air conditioner can be adjusted to control the temperature and relative humidity of the treated air to meet the air supply requirements of the data center. Using the air conditioning operation control method proposed in the present invention in the data center can increase the free cooling time of the data center cluster by 3.16% to 20.45%, effectively reducing the cooling energy consumption of the data center and reducing the PUE of the data center.

[0042] In this embodiment, the spray angle A of the nozzle 210 is the angle formed by the upward rotation of the surface where the air supply port 120 is located. The nozzle 210 controls the spray range in the upper middle part of the spray chamber 130. Since the water mist can fall under the action of gravity, the spray range can be correspondingly expanded to the lower part of the spray chamber 130. Therefore, the spray angle A can be selected to be 45°~90° for a better cooling effect. When it is less than 45°, the spray range will be concentrated in the middle and lower part of the spray chamber 130 and cannot reach the upper part of the spray chamber 130. The air in the upper part cannot be cooled, and when the spray angle A is 65°, the cooling effect is best.

[0043] The wind speed of the air duct 100 is controlled within a certain range. If the wind speed is too fast, it will not be able to fully exchange heat with the water mist sprayed by the nozzle 210. If the wind speed is too slow, it will cause the air at the air outlet 120 to have a backflow problem. Therefore, the wind speed is controlled at 1.53m / s~3.29m / s. The air conditioner can effectively reduce the air temperature. In the process of increasing from 1.53m / s to 3.29m / s, the temperature of the air treated by the air conditioner first decreases and then increases, and the relative humidity gradually decreases. When the wind speed is 2.44m / s, the air conditioning temperature can reach the best.

[0044] The spray flow rate of the nozzle 210 is also controlled within a certain range. Too large a flow rate will cause a waste of water resources, and too small a flow rate will make it difficult to form water mist at the nozzle 210. Therefore, the spray flow rate is controlled in the range of 0.6L / min~1.0L / min, which has a better cooling effect. As the spray flow rate increases from 0.6L / min to 1.0L / min, the treated air temperature will be lower, but the relative humidity of the air will be higher. Therefore, in actual processes, the spray flow rate can be adjusted to 1.0L / min in high temperature and low humidity areas to ensure the best cooling effect, and the spray flow rate can be reduced to 0.6L / min in high temperature and high humidity areas.

[0045] According to one embodiment of the present invention, based on outdoor air conditions, controlling at least one of the wind speed in the air duct 100, the spray flow rate of the nozzle 210, and the spray angle A so that the air outlet 120 of the air duct 100 meets the air supply conditions of the data center includes: Based on outdoor air conditions, obtain a set air conditioning mode; Based on the set air-conditioning mode, the spray angle A of the nozzle 210 is adjusted first, then the wind speed in the air duct 100 is adjusted, and finally the spray flow rate of the nozzle 210 is adjusted.

[0046] In this embodiment, a corresponding set air-conditioning mode can be obtained according to the obtained outdoor air conditions. Based on the set air-conditioning mode, in the actual operation and adjustment process, the spray angle A of the nozzle 210 can be adjusted preferentially. The adjustment of the spray angle A will not increase water resources and energy consumption. The spray angle A can be preferentially adjusted to 65°. Secondly, the speed of the fan is adjusted, and the wind speed in the air duct 100 is preferentially adjusted. The reduced fan speed can reduce the fan energy consumption; finally, the spray flow rate is adjusted. Excessive spray flow rate will increase the relative humidity of the air while consuming more water. Therefore, under the premise of meeting the air supply conditions, try to use the lowest spray flow rate.

[0047] In other embodiments, based on different air-conditioning modes, the order of the spray angle A of the nozzle 210, the wind speed in the air duct 100 and the spray flow rate of the nozzle 210 can also be adjusted accordingly, and the specific number of adjustments of the spray angle A of the nozzle 210, the wind speed in the air duct 100 and the spray flow rate of the nozzle 210 can also be selected, and only one or two of them can be adjusted, and the others can remain unchanged.

[0048] like Figure 4 As shown, according to one embodiment of the present invention, based on the outdoor air condition, obtaining the set air conditioning mode includes: Get the relative humidity of outdoor air; Make sure that the relative humidity of the outdoor air is greater than or equal to the set value and obtain the return air mode.

[0049] like Figure 3As shown, according to one embodiment of the present invention, based on the outdoor air condition, obtaining the set air conditioning mode includes: Get the relative humidity of outdoor air; Make sure that the relative humidity of the outdoor air is less than the set value and obtain the fresh air mode.

[0050] In this embodiment, when the temperature exceeds 27°C, the air conditioner is turned on, and the outdoor air relative humidity is used as the outdoor air condition. The outdoor air relative humidity is obtained and the outdoor air relative humidity is judged. When the outdoor air relative humidity is less than the set value, the fresh air mode is turned on, and the wind speed, spray flow rate and spray angle A are adjusted so that the air state after cooling meets the data center air supply condition. When the outdoor air relative humidity is greater than or equal to the set value, the return air mode is turned on, and the return air from the computer room of the data center is cooled by the air conditioner to meet the data center air supply condition. During this period, the wind speed, spray flow rate and spray angle A can also be adjusted so that the air state meets the air supply condition in the best way.

[0051] When natural air is cooled directly by evaporative cooling air conditioners, the cooling efficiency of evaporative cooling air conditioners is low in high humidity climates, and the relative humidity of the air after cooling will also be very high, which will not meet the air supply conditions of the data center. Since the exhaust temperature of the hot channel of the data center computer room is between 28°C and 40°C, and the relative humidity of the air is between 30% and 60%, this embodiment uses the computer room return air (i.e., the computer room hot channel exhaust air) to replace the high humidity outdoor natural air through evaporative cooling air conditioners, that is, the computer room return air is used to replace the natural air in a short time under high humidity outdoor climates. At this time, the air inlet 110 of the air duct 100 is connected to the computer room return air, so that in high humidity climates, the evaporative cooling air conditioner can still provide a natural cold source for the data center, increase the free cooling time of the data center, and significantly reduce the energy consumption of the data center.

[0052] Under dry and mild outdoor environmental conditions, this embodiment uses natural air to provide a cold source for the data center after being processed by cold mist direct evaporative cooling air conditioning. Giving priority to fresh air treatment will not only have lower energy consumption, but also better air quality, which is more conducive to ensuring the safe operation of data center facilities.

[0053] In this embodiment, the set value of the relative humidity of the air can be selected as 40%.

[0054] According to one embodiment of the present invention, obtaining a set air conditioning mode based on outdoor air conditions includes: Get the outdoor air relative humidity and outdoor air temperature; It is determined that the outdoor air relative humidity is greater than or equal to a first threshold and less than or equal to a second threshold, and the outdoor air temperature is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, and a mild mode is obtained.

[0055] According to one embodiment of the present invention, obtaining a set air conditioning mode based on outdoor air conditions includes: Get the outdoor air relative humidity and outdoor air temperature; Determine that the outdoor air relative humidity is less than a first threshold value and the outdoor air temperature is greater than a second temperature threshold value; obtain a high temperature and low humidity mode.

[0056] According to one embodiment of the present invention, obtaining a set air conditioning mode based on outdoor air conditions includes: Get the outdoor air relative humidity and outdoor air temperature; Determine that the outdoor air relative humidity is greater than a second threshold value, and the outdoor air temperature is greater than a second temperature threshold value; obtain a high temperature and high humidity mode.

[0057] In this embodiment, the outdoor air relative humidity and the outdoor air temperature are taken as the outdoor air conditions, the outdoor air relative humidity and the outdoor air temperature are obtained, and the outdoor air relative humidity and the outdoor air temperature are judged. When the outdoor air relative humidity is greater than or equal to the first threshold value and less than or equal to the second threshold value, and the outdoor air temperature is greater than or equal to the first temperature threshold value and less than or equal to the second temperature threshold value, the mild mode adapted to operation in a mild area is turned on, that is, the outdoor air relative humidity and the outdoor air temperature are both within their respective corresponding normal ranges, proving that the data center is located in a mild area, and the air conditioner directly runs the mild mode when cooling the data center. When the outdoor air relative humidity is less than the first threshold value, and the outdoor air temperature is greater than the second temperature threshold value, the high temperature and low humidity mode adapted to operation in a high temperature and low humidity area is turned on, that is, the outdoor air relative humidity is less than its corresponding normal range, and the outdoor air temperature is greater than its corresponding normal range, proving that the data center is located in a high temperature and low humidity area, and the air conditioner directly runs the high temperature and low humidity mode when cooling the data center. When the outdoor air relative humidity is higher than the second threshold value and the outdoor air temperature is greater than the second temperature threshold value, the high temperature and high humidity mode adapted to operation in high temperature and high humidity areas is turned on, that is, the outdoor air relative humidity is greater than its corresponding normal range, and the outdoor air temperature is greater than its corresponding normal range, which proves that the data center is located in a high temperature and high humidity area, and the air conditioner directly operates in the high temperature and high humidity mode when cooling the data center.

[0058] According to the climate of different regions, different operating modes are used to adjust the wind speed, spray flow rate and spray angle A to different degrees, so that the state of the air after cooling meets the air supply conditions of the data center. It can be understood that the normal range of outdoor air relative humidity is between the first threshold and the second threshold, and the values ​​of the first threshold and the second threshold can be determined according to actual conditions. The normal range of outdoor air temperature is between the first temperature threshold and the second temperature threshold, and the first temperature threshold and the second temperature threshold can also be determined according to actual conditions.

[0059] According to one embodiment of the present invention, based on the set air conditioning mode, first adjusting the spray angle A of the nozzle 210, then adjusting the wind speed in the air duct 100, and finally adjusting the spray flow rate of the nozzle 210 includes: Based on the mild mode, the spray angle A of the nozzle 210 is adjusted to the first set angle, the spray flow rate of the nozzle 210 is adjusted to the first set flow rate, and the wind speed in the air duct 100 is adjusted to the first set wind speed; Determine that the air temperature at the air outlet 120 of the air duct 100 is greater than or equal to a preset air supply temperature, and increase the wind speed in the air duct 100; Determine that the wind speed in the air duct 100 is adjusted to the second set wind speed, and the air temperature at the air supply outlet 120 of the air duct 100 is greater than or equal to the preset air supply temperature, and increase the spray flow rate of the nozzle 210 until the air temperature at the air supply outlet 120 of the air duct 100 is less than the preset air supply temperature.

[0060] In this embodiment, the data center is located in a temperate area. When operating in a temperate mode, the spray angle A of the nozzle 210 is first controlled to be adjusted to 65°, the spray flow rate is 0.6L / min, and the wind speed is 1.53m / s. At low spray flow rates and low wind speeds, water resources can be saved and fan energy consumption can be reduced. If the air temperature after evaporative cooling cannot be lower than 27°C, the wind speed can be gradually increased to 2.44m / s. When the wind speed is 2.44m / s, the cooling efficiency is the highest. If the air temperature after cooling cannot be lower than 27°C when the wind speed is increased to 2.44m / s, the spray flow rate can be gradually increased.

[0061] According to one embodiment of the present invention, based on the set air conditioning mode, first adjusting the spray angle A of the nozzle 210, then adjusting the wind speed in the air duct 100, and finally adjusting the spray flow rate of the nozzle 210 includes: Based on the high temperature and low humidity mode, the spray angle A of the nozzle 210 is adjusted to the first set angle, the spray flow rate of the nozzle 210 is adjusted to the first set flow rate, and the wind speed in the air duct 100 is adjusted to the second set wind speed; Determine that the air temperature at the air outlet 120 of the air duct 100 is greater than or equal to the preset air supply temperature, and increase the spray flow rate of the nozzle 210 until the air temperature at the air outlet 120 of the air duct 100 is less than the preset air supply temperature.

[0062] In this embodiment, the data center is located in a high temperature and low humidity area. When the high temperature and low humidity mode is in operation, the wind speed is first controlled to be 2.44m / s, the spray angle A is adjusted to 65°, and the spray flow rate is 0.6L / min. When the air temperature after the evaporative cooling air conditioner is cooled cannot be lower than 27°C, the spray flow rate can be gradually increased so that the air temperature after the evaporative cooling air conditioner is cooled is lower than 27°C, meeting the air supply requirements of the data center.

[0063] According to one embodiment of the present invention, based on the set air conditioning mode, first adjusting the spray angle A of the nozzle 210, then adjusting the wind speed in the air duct 100, and finally adjusting the spray flow rate of the nozzle 210 includes: Based on the high temperature and high humidity mode, the spray angle A of the nozzle 210 is adjusted to the second set angle, the spray flow rate of the nozzle 210 is adjusted to the first set flow rate, and the wind speed in the air duct 100 is adjusted to the second set wind speed; Determine that the air temperature at the air outlet 120 of the air duct 100 is greater than or equal to the preset air supply temperature, and increase the spray angle A of the nozzle 210; Determine that the spray angle A of the nozzle 210 is adjusted to the first set angle, and the air temperature at the air supply outlet 120 of the air duct 100 is greater than or equal to the preset air supply temperature, and increase the spray flow rate of the nozzle 210 until the air temperature at the air supply outlet 120 of the air duct 100 is less than the preset air supply temperature.

[0064] In this embodiment, the data center is located in a high temperature and high humidity area. When the high temperature and high humidity mode is in operation, the spray angle A is first controlled to be adjusted to 5°, the wind speed is 2.44m / s, and the spray flow rate is 0.6L / min. When the air temperature after cooling by the evaporative cooling air conditioner cannot be lower than 27°C, the spray angle A can be gradually increased; when the spray angle A is increased to 65° and the temperature after cooling still cannot be lower than 27°C, the spray flow rate can be increased.

[0065] According to an embodiment of the present invention, determining that the air temperature of the air outlet 120 of the air duct 100 is greater than or equal to a preset air supply temperature, and increasing the spray angle A of the nozzle 210 includes: Determine that the air temperature of the air outlet 120 of the air duct 100 is greater than or equal to the preset air supply temperature, and control the spray angle A of the nozzle 210 to gradually increase the preset angle, the preset angle is between 5° and 20°; the first set angle is between 45° and 90°.

[0066] In this embodiment, the spray angle A can be adjusted gradually, and the preset angle can be increased each time. The preset angle can be selected to be 5°. After the increase, the spray angle A is maintained for a period of time. During this period, the air outlet of the air supply port 120 is continuously detected. If the air supply conditions are not met, the spray angle A continues to be increased.

[0067] When the cold mist direct evaporative cooling air conditioner processes air, the cooling effect is better when the spray angle A is 45°~90°. This range has a better cooling efficiency. When the spray angle A is larger, part of the water mist will hit the top surface of the spray chamber 130 and turn into water droplets, which will reduce the cooling efficiency. The smaller the spray angle A, the lower the cooling efficiency. When the spray angle A is 65°, the cooling effect is the best.

[0068] The embodiment of the present invention further provides a control system for executing the air conditioning control method for a data center as described in the above embodiment.

[0069] Figure 5 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 5 As shown, the electronic device may include: a processor 810, a communication interface 820, a memory 830 and a communication bus 840, wherein the processor 810, the communication interface 820 and the memory 830 communicate with each other through the communication bus 840. The processor 810 may call the logic instructions in the memory 830 to execute the air conditioning control method for a data center of the above embodiment.

[0070] In addition, the logic instructions in the above-mentioned memory 830 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on this understanding, the technical solution of the present invention, or the part that contributes to the relevant technology or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0071] On the other hand, an embodiment of the present invention discloses a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the air conditioning control method for a data center provided by the above-mentioned method embodiments.

[0072] On the other hand, an embodiment of the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon, which is implemented when the computer program is executed by a processor to execute the air conditioning control method for a data center provided in the above embodiments.

[0073] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0074] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the relevant technology can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiment.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. An air conditioning control method for a data center, characterized in that: The air conditioner comprises an air duct and a nozzle, wherein the nozzle is arranged in the air duct, and the spraying angle of the nozzle is the angle between the spraying direction of the nozzle and the air supply port of the air duct, including: Based on outdoor air conditions, at least one of the wind speed in the air duct, the spray flow rate of the nozzle, and the spray angle is controlled so that the air outlet of the air supply port of the air duct meets the air supply condition of the data center.

2. The air conditioning control method for a data center according to claim 1, characterized in that: The controlling of at least one of the wind speed in the air duct, the spray flow rate of the nozzle, and the spray angle based on the outdoor air condition so that the air outflow from the air supply port of the air duct meets the air supply condition of the data center includes: Based on outdoor air conditions, obtain a set air conditioning mode; Based on the set air conditioning mode, the spray angle of the nozzle is adjusted first, then the wind speed in the air duct is adjusted, and finally the spray flow rate of the nozzle is adjusted.

3. The air conditioning control method for a data center according to claim 2, characterized in that: The obtaining and setting the air conditioning mode based on the outdoor air condition includes: Get the relative humidity of outdoor air; Determine that the relative humidity of the outdoor air is greater than or equal to a set value, and obtain the return air mode; or determine that the relative humidity of the outdoor air is less than a set value, and obtain the fresh air mode.

4. The air conditioning control method for a data center according to claim 2, characterized in that: The obtaining and setting the air conditioning mode based on the outdoor air condition includes: Get the outdoor air relative humidity and outdoor air temperature; Determine that the outdoor air relative humidity is greater than or equal to a first threshold and less than or equal to a second threshold, and the outdoor air temperature is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, and obtain a mild mode; Or, determine that the outdoor air relative humidity is less than a first threshold value, and the outdoor air temperature is greater than a second temperature threshold value; obtain a high temperature and low humidity mode; Or, determine that the outdoor air relative humidity is greater than a second threshold value, and the outdoor air temperature is greater than a second temperature threshold value; obtain a high temperature and high humidity mode.

5. The air conditioning control method for a data center according to claim 4, characterized in that: The step of first adjusting the spray angle of the nozzle, then adjusting the wind speed in the air duct, and finally adjusting the spray flow rate of the nozzle based on the set air conditioning mode includes: Based on the mild mode, adjusting the spray angle of the nozzle to a first set angle, adjusting the spray flow rate of the nozzle to a first set flow rate, and adjusting the wind speed in the air duct to a first set wind speed; Determine that the air temperature at the air outlet of the air duct is greater than or equal to a preset air supply temperature, and increase the wind speed in the air duct; Determine that the wind speed in the air duct is adjusted to a second set wind speed, and the air temperature at the air supply outlet of the air duct is greater than or equal to a preset air supply temperature, and increase the spray flow rate of the nozzle until the air temperature at the air supply outlet of the air duct is less than the preset air supply temperature.

6. The air conditioning control method for a data center according to claim 4, characterized in that: The step of first adjusting the spray angle of the nozzle, then adjusting the wind speed in the air duct, and finally adjusting the spray flow rate of the nozzle based on the set air conditioning mode includes: Based on the high temperature and low humidity mode, adjusting the spray angle of the nozzle to a first set angle, adjusting the spray flow rate of the nozzle to a first set flow rate, and adjusting the wind speed in the air duct to a second set wind speed; Determine that the air temperature at the air supply outlet of the air duct is greater than or equal to a preset air supply temperature, and increase the spray flow rate of the nozzle until the air temperature at the air supply outlet of the air duct is less than the preset air supply temperature.

7. The air conditioning control method for a data center according to claim 4, characterized in that: The step of first adjusting the spray angle of the nozzle, then adjusting the wind speed in the air duct, and finally adjusting the spray flow rate of the nozzle based on the set air conditioning mode includes: Based on the high temperature and high humidity mode, adjusting the spray angle of the nozzle to a second set angle, adjusting the spray flow rate of the nozzle to a first set flow rate, and adjusting the wind speed in the air duct to a second set wind speed; Determine that the air temperature at the air outlet of the air duct is greater than or equal to a preset air supply temperature, and increase the spray angle of the nozzle; Determine that the spray angle of the nozzle is adjusted to a first set angle, and the air temperature at the air supply outlet of the air duct is greater than or equal to a preset air supply temperature, and increase the spray flow rate of the nozzle until the air temperature at the air supply outlet of the air duct is less than the preset air supply temperature.

8. The air conditioning control method for a data center according to claim 7, characterized in that: Determining that the air temperature of the air outlet of the air duct is greater than or equal to a preset air supply temperature and increasing the spray angle of the nozzle includes: Determine that the air temperature at the air outlet of the air duct is greater than or equal to the preset air supply temperature, and control the spray angle of the nozzle to gradually increase the preset angle, the preset angle is between 5° and 20°; the first set angle is between 45° and 90°.

9. A control system, characterized in that: Execute the air conditioning control method for a data center as described in any one of claims 1 to 9.

10. An air conditioner, characterized in that: include: An air duct, wherein the air duct is provided with an air inlet, an air supply outlet and a spray chamber, and the spray chamber is located between the air inlet and the air supply outlet; A spray assembly, the spray assembly comprising a spray head, a pipe and a driving component, the spray head is arranged at the top of the spray chamber near the air supply port, the pipe is located in the spray chamber and is perpendicular to the air flow direction in the spray chamber, and the driving component is connected to the pipe; a fan, the fan being adapted to supply air into the air duct; The control system of claim 9, wherein the control system is connected to the fan and the drive component.

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