Air treatment method and device for machine room, electronic equipment and medium

Abstract

The embodiment of the invention provides an air treatment method and device for a machine room, electronic equipment and a medium. The method comprises the steps that the current air supply temperature of an air feeder is detected, and the current air return temperature of an air return opening is detected; according to the current air supply temperature, the working frequency of the air feeder is controlled; and the opening degree of the fresh air valve is controlled according to the current return air temperature. According to the embodiment of the invention, the air feeder and the fresh air valve are respectively adjusted according to the air supply temperature and the air return temperature, timely response and adjustment can be carried out according to temperature changes of different areas, meanwhile, unnecessary coordination time consumption is reduced, and the temperature of the machine room can enter a stable state within a short time.

Description

Technical Field

[0001] The present invention relates to the technical field of air treatment, and in particular to an air treatment method, device, electronic equipment and computer-readable storage medium for a computer room. Background Art

[0002] Air handling systems (AHSs) are systems used to monitor and regulate air temperature and are widely used in industrial manufacturing, building environments, data centers, and other fields. Their core goal is to maintain ambient temperature within a set range through heating, cooling, or ventilation, thereby ensuring stable equipment operation or providing a comfortable environment.

[0003] Natural cooling is a common air treatment method used in air handling systems. When outdoor temperatures are low, outdoor air is introduced into the room through a fresh air valve and a blower, where it exchanges heat with the indoor air before being discharged through the return air vents, achieving indoor cooling. During this process, the fresh air valve opening and blower frequency are typically adjusted based on indoor air temperature fluctuations to achieve indoor temperature regulation.

[0004] Since the opening of the fresh air valve and the adjustment of the fan frequency need to be coordinated with each other, it takes a long time for the indoor air temperature to reach a stable state, which is not conducive to system stability. Summary of the Invention

[0005] In view of the above problems, embodiments of the present invention are proposed to provide an air treatment method, device, electronic device, and computer-readable storage medium for a computer room that overcome the above problems or at least partially solve the above problems.

[0006] In one aspect, an embodiment of the present invention provides an air treatment method for a computer room, wherein the computer room includes a cold aisle area, a hot aisle area, and a mixed air area; a return air outlet is provided between the cold aisle area and the hot aisle area, a fresh air valve is provided in the mixed air area, and a blower is provided between the mixed air area and the cold aisle area;

[0007] The method comprises:

[0008] Detecting the current supply air temperature of the blower and the current return air temperature of the return air outlet;

[0009] Controlling the operating frequency of the blower according to the current air supply temperature;

[0010] The opening of the fresh air valve is controlled according to the current return air temperature.

[0011] Optionally, a heat load device is provided in the cold channel area; and the method further comprises:

[0012] Obtaining a heat load change rate of the heat load device;

[0013] The controlling of the operating frequency of the blower according to the current air supply temperature includes:

[0014] When the heat load change rate is less than a first threshold, obtaining an initial target air supply temperature;

[0015] performing closed-loop control on the operating frequency of the blower according to the current supply air temperature and the target supply air temperature;

[0016] The controlling of the opening of the fresh air valve according to the current return air temperature includes:

[0017] When the heat load change rate is less than a first threshold, obtaining an initial target return air temperature;

[0018] The opening of the fresh air valve is closed-loop controlled according to the current return air temperature and the target return air temperature.

[0019] Optionally, controlling the opening of the fresh air valve according to the current return air temperature further includes:

[0020] When the heat load change rate increases to be greater than a first threshold and less than a second threshold, the target return air temperature is lowered; the first threshold is less than the second threshold.

[0021] Optionally, controlling the opening of the fresh air valve according to the current return air temperature further includes:

[0022] When the heat load change rate decreases to less than a third threshold, the initial target return air temperature is restored; the third threshold is less than the first threshold.

[0023] Optionally, controlling the operating frequency of the blower according to the current air supply temperature further includes:

[0024] When the heat load change rate increases to be greater than the second threshold, lowering the target supply air temperature;

[0025] The controlling the opening of the fresh air valve according to the current return air temperature further includes:

[0026] When the heat load change rate increases to be greater than the second threshold, the target return air temperature is lowered.

[0027] Optionally, controlling the operating frequency of the blower according to the current air supply temperature further includes:

[0028] When the heat load change rate decreases to less than the third threshold, restoring the initial target supply air temperature;

[0029] The controlling the opening of the fresh air valve according to the current return air temperature further includes:

[0030] When the heat load change rate decreases to be less than the third threshold, the initial target return air temperature is restored.

[0031] Optionally, obtaining the heat load change rate of the heat load device includes:

[0032] detecting the heat load temperature of the heat load device;

[0033] A heat load change rate is determined according to the heat load temperature.

[0034] Optionally, performing closed-loop control on the operating frequency of the blower according to the current supply air temperature and the target supply air temperature includes:

[0035] determining a frequency adjustment amount of the blower according to a difference between the current supply air temperature and the target supply air temperature;

[0036] controlling the operating frequency of the blower according to the frequency adjustment amount;

[0037] The closed-loop control of the opening of the fresh air valve according to the current return air temperature and the target return air temperature includes:

[0038] determining an opening adjustment amount of the return air valve according to a difference between the current return air temperature and the target return air temperature;

[0039] The opening of the return air valve is controlled according to the opening adjustment amount.

[0040] On the other hand, an embodiment of the present invention provides an air handling device for a computer room, the computer room comprising a cold aisle area, a hot aisle area, and a mixed air area; a return air outlet is provided between the cold aisle area and the hot aisle area, a fresh air valve is provided in the mixed air area, and a blower is provided between the mixed air area and the cold aisle area;

[0041] The device comprises:

[0042] A temperature detection module, configured to detect the current supply air temperature of the blower and the current return air temperature of the return air outlet;

[0043] A blower control module, configured to control the operating frequency of the blower according to the current air supply temperature;

[0044] The fresh air valve control module is used to control the opening of the fresh air valve according to the current return air temperature.

[0045] On the other hand, an embodiment of the present invention provides an electronic device, comprising: a processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the steps of the air treatment method for the computer room as described above are implemented.

[0046] On the other hand, an embodiment of the present invention provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the computer program implements the steps of the air treatment method for a computer room as described above.

[0047] The embodiments of the present invention include the following advantages:

[0048] The embodiment of the present invention detects the current supply air temperature of the blower, thereby controlling the operating frequency of the blower according to the current supply air temperature; and detects the current return air temperature of the return air outlet, thereby controlling the opening of the fresh air valve according to the current return air temperature. When the outdoor temperature changes and causes small fluctuations in the supply air temperature, the temperature in the cold channel can be kept stable by controlling the operating frequency of the blower; when the return air temperature in the cold channel area fluctuates slightly, the temperature in the cold channel can be kept stable by controlling the opening of the fresh air valve. The present invention adjusts the blower and the fresh air valve according to the supply air temperature and the return air temperature respectively, and can respond and adjust in time according to the temperature changes in different areas, while reducing unnecessary coordination time, so that the temperature of the computer room can enter a stable state in a short time. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0050] Figure 1 This is a flowchart of the steps of an air treatment method for a computer room provided by an embodiment of the present invention;

[0051] Figure 2 This is a system structure diagram of an air treatment method for a computer room provided by an embodiment of the present invention;

[0052] Figure 3 This is an application flow chart of an air treatment device for a computer room provided by an embodiment of the present invention;

[0053] Figure 4 This is a structural block diagram of an air handling device for a computer room provided by an embodiment of the present invention.

[0054] The following are the descriptions of the reference numerals:

[0055] 210: mixed air area; 211: fresh air valve; 212: blower;

[0056] 220: Cold aisle area; 221: Heat load equipment; 222: Return air outlet;

[0057] 230: Hot aisle area; 231: Return air valve; 232: Exhaust valve. DETAILED DESCRIPTION

[0058] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0059] Air handling systems (AHSs) are systems used to monitor and regulate air temperature and are widely used in industrial manufacturing, building environments, data centers, and other fields. Their core goal is to maintain ambient temperature within a set range through heating, cooling, or ventilation, thereby ensuring stable equipment operation or providing a comfortable environment.

[0060] Natural cooling is a common air treatment method in air handling systems. When outdoor temperatures are low, outdoor air is introduced into the room through a fresh air valve and a blower, where it undergoes heat exchange with the indoor air before being discharged through the return air vents, achieving indoor cooling. During this process, the fresh air valve opening and blower frequency are typically determined and adjusted based on indoor air temperature fluctuations to achieve indoor temperature regulation. However, since these adjustments require coordination, it takes a long time for the indoor air temperature to reach a stable state, which is detrimental to system stability.

[0061] This invention adjusts the supply air fan and fresh air valve based on the supply and return air temperatures. When outdoor temperature fluctuations cause minor fluctuations in supply air temperature, the cold aisle temperature can be maintained stable by controlling the supply air fan's operating frequency. When the cold aisle temperature experiences minor fluctuations, the cold aisle temperature can be maintained stable by controlling the opening of the fresh air valve. This reduces unnecessary coordination time and enables the computer room temperature to reach a stable state in a shorter period of time.

[0062] Figure 1 The present invention provides a flow chart of the steps of an air treatment method for a computer room.

[0063] like Figure 1 As shown, the method may specifically include the following steps:

[0064] Step 101: Detect the current supply air temperature of the blower and the current return air temperature of the return air outlet.

[0065] Figure 2The present invention provides a schematic structural diagram of an air treatment method for a computer room.

[0066] like Figure 2 As shown, the computer room is considered as a complete air handling system, which includes a mixed air zone 210, a cold aisle zone 220, and a hot aisle zone 230. A fresh air valve 211 is provided between the mixed air zone 210 and the outside, and a blower 212 is provided between the mixed air zone 210 and the cold aisle zone 220. Heat load equipment 221 is provided in the cold aisle zone 220, and a return air inlet 222 is provided between the cold aisle zone 220 and the hot aisle zone 230. A return air valve 231 is provided between the hot aisle zone 230 and the mixed air zone 210, and an exhaust valve 232 is provided between the hot aisle zone 230 and the outside.

[0067] In the actual scenario of free cooling, such as Figure 2 As shown by the arrows, low-temperature outdoor air enters the mixed air zone 210 through the fresh air valve 211. At the same time, some air from the hot aisle zone 230 enters the mixed air zone 210 through the return air valve 231 and mixes with the low-temperature outdoor air. The mixed, lower-temperature air enters the cold aisle zone 230 through the blower 212, removes heat generated by the heat-loaded equipment in the cold aisle zone 230, and enters the hot aisle zone 230 through the return air port 222. A portion of the hot aisle's higher-temperature air is discharged outdoors through the exhaust valve 232, while the remaining portion enters the mixed air zone 210 through the return air valve 231, thus continuously circulating.

[0068] During this process, when the outdoor temperature or the heat load in the cold channel changes, the temperature of the cold channel will change. Therefore, it is necessary to maintain a stable temperature in the cold channel by adjusting the opening of the fresh air valve and the frequency of the blower.

[0069] Because the supply air temperature is affected and changes before the cold aisle temperature after a change in outdoor temperature, the present invention detects the supply air temperature and can quickly determine that the outdoor temperature has changed. This allows for timely action to maintain a stable cold aisle temperature by adjusting the blower frequency. In the cold aisle, if the heat load changes, such as a sudden increase in the data processing capacity of heat-loaded equipment, the cold aisle temperature is affected and changes first. The present invention uses the return air temperature at the return air outlet as the cold aisle temperature, allowing for more timely action to maintain a stable cold aisle temperature by adjusting the fresh air valve opening.

[0070] In some embodiments, a temperature sensor is provided near the blower, and the current air supply temperature of the blower is detected by the temperature sensor.

[0071] In some embodiments, a temperature sensor is provided near the return air outlet of the cold channel area, and the current return air temperature of the return air outlet is detected by the temperature sensor.

[0072] It is worth noting that in other embodiments, other methods may be used to obtain the current supply air temperature of the blower and the current return air temperature of the return air outlet, and the present invention does not limit this.

[0073] Step 102: Control the operating frequency of the blower according to the current air supply temperature.

[0074] In some embodiments, the relationship between the current supply air temperature and the target supply air temperature is determined based on the detected current supply air temperature. If the current supply air temperature is greater than the target supply air temperature, the operating frequency of the blower is increased; if the current supply air temperature is less than the target supply air temperature, the operating frequency of the blower is decreased.

[0075] As an example, when the outdoor temperature rises slightly (still lower than the cold channel temperature), causing the current supply air temperature to be greater than the target supply air temperature, the operating frequency of the blower is increased, thereby increasing the supply air volume. The increase in the supply air volume allows more lower temperature air to be transported to the cold channel per unit time, thereby improving the heat exchange efficiency and maintaining the cold channel temperature.

[0076] It is worth noting that in actual application scenarios, the outdoor temperature may be higher than the cold channel temperature. In this case, even if the operating frequency of the blower and the opening of the fresh air valve are adjusted to the maximum value, the cold channel temperature cannot be maintained. In this case, the compressor unit needs to be turned on for cooling to stabilize the cold channel temperature.

[0077] In some embodiments, the method further includes: obtaining a heat load change rate of the heat load device.

[0078] Heat-loaded equipment refers to devices that generate heat during operation and require a cooling system to maintain a normal temperature. During operation, these devices release heat (i.e., heat load) into the surrounding environment. The heat load rate of change, which reflects the fluctuation in heat generated by the equipment per unit time, is used to quantify the rate of increase or decrease in heat load and is a crucial parameter for designing cooling systems and ensuring stable equipment operation.

[0079] As an example, in an actual application scenario, if the computer equipment in the computer room suddenly needs to process a large amount of data, a large amount of heat will be generated during operation, and the heat load changes drastically.

[0080] However, it takes a certain amount of time for the change in heat load to be fed back to the air handling system through the return air temperature. As a result, the air handling system will only adjust to maintain the temperature of the cold channel after a certain period of time has passed since the heat load changed. This makes the temperature adjustment of the cold channel time-consuming and is not conducive to system stability.

[0081] By obtaining the heat load change rate of the heat load equipment and establishing a pre-regulation mechanism based on the heat load change rate, the present invention enables the air handling system to obtain feedback on the heat load change in a relatively short period of time and triggers the pre-regulation mechanism in advance before the cold channel temperature changes, which is conducive to the rapid stabilization of the cold channel temperature.

[0082] In some embodiments, obtaining the heat load change rate of the heat load device includes the following specific steps:

[0083] detecting the heat load temperature of the heat load device;

[0084] A heat load change rate is determined according to the heat load temperature.

[0085] As an example, a temperature sensor is installed on each heat load device to collect the temperature of all heat load devices to calculate the root mean square value (RMS) of the heat load temperature. The detection period ΔT is set, and the heat load change rate α is calculated according to the following formula: T :

[0086]

[0087] The root mean square value (RMS) means that the temperature of each heat load device is first squared to obtain the square value of each temperature, then the average of all square values ​​is calculated, and finally the square root of the average value is taken. Based on the RMS value of the current cycle and the RMS value of the previous cycle, as well as the detection period ΔT, the heat load change rate α of the current cycle is determined. T .

[0088] The root mean square (RMS) value (RMS) is an important metric used in statistics and engineering to quantify the magnitude of fluctuations in a set of values. It is particularly useful for characterizing the effective value of a numerical variable or fluctuating signal. Compared to simply taking the average temperature value, it avoids the cancellation of positive and negative fluctuations and better reflects the magnitude of temperature changes.

[0089] It is worth noting that in other embodiments, other methods may be used to obtain the heat load temperature, such as taking the temperature of part of the heat load equipment as the heat load temperature. The present invention does not limit the method for obtaining the heat load temperature.

[0090] In addition, in other embodiments, other methods may be used to determine the heat load change rate, such as estimating based on the number of devices and the workload of the devices. The present invention does not limit the method for determining the heat load change rate.

[0091] In some embodiments, step 102 specifically includes the following sub-steps:

[0092] Sub-step S11 : when the heat load change rate is less than a first threshold, obtaining an initial target supply air temperature.

[0093] When the heat load change rate is less than the first threshold, it means that the heat load change rate is not drastic. At this time, according to the normal processing flow, the operating frequency of the blower can be controlled according to the current supply air temperature and the initial target supply air temperature, without the need for a pre-adjustment mechanism.

[0094] It is worth noting that the specific value of the first threshold needs to be determined according to different actual conditions such as the cold channel temperature requirement, the number of heat load devices, the type of heat load devices, etc., so the specific value of the first threshold is not limited here.

[0095] Sub-step S12: performing closed-loop control on the operating frequency of the blower according to the current supply air temperature and the target supply air temperature.

[0096] Closed-loop control is an automatic control method with real-time feedback adjustment. Specifically, closed-loop control continuously monitors the actual state of the controlled object (such as the current supply air temperature) through sensors, and compares the measured value with the preset target value (such as the target supply air temperature). The actuator (such as the blower driven by the frequency converter) then adjusts the output to reduce the deviation between the actual value and the target value, so that the controlled object always follows the preset target value or stabilizes within the set range, forming a "measurement-comparison-correction" cycle control.

[0097] Closed-loop control offers strong interference resistance and adaptability. For example, in supply air temperature control, if a sudden change in outdoor temperature or a change in duct resistance causes fluctuations in air volume, closed-loop control can immediately detect temperature deviations from the target value through real-time feedback and automatically adjust the fan frequency to compensate for the disturbance, thereby preventing temperature disturbances in the cold aisle. Furthermore, closed-loop control eliminates steady-state errors through integral action and suppresses overshoot by predicting change trends through differential action, thereby achieving dynamic balancing with higher precision.

[0098] In addition, the closed-loop control in the embodiment of the present invention refers to a control algorithm, which can be a PID control algorithm, a fuzzy control algorithm, a fuzzy PID control algorithm, etc. The present invention does not limit the specific type of closed-loop control.

[0099] In some embodiments, sub-step S22 includes the following specific steps:

[0100] determining a frequency adjustment amount of the blower according to a difference between the current supply air temperature and the target supply air temperature;

[0101] The operating frequency of the blower is controlled according to the frequency adjustment amount.

[0102] As an example, when the outdoor temperature rises slowly, the current supply air temperature is continuously monitored by the temperature sensor and compared with the target supply air temperature. When a deviation is detected between the two, the PID algorithm calculates the frequency increment of the supply air fan based on the deviation between the two, which is executed by the supply air fan inverter, thereby increasing the operating frequency of the supply air fan and preventing the interference caused by the outdoor temperature change from being transmitted to the cold channel.

[0103] In some embodiments, step 102 further includes the following sub-steps:

[0104] When the heat load change rate increases to be greater than the second threshold, the target supply air temperature is lowered.

[0105] It is worth noting that the embodiment of the present invention sets a first threshold and a second threshold for the heat load change rate, with the first threshold being lower than the second threshold. This divides the heat load change rate into two different levels of change, and provides different pre-adjustment methods for these two different levels of change. When the heat load changes and gradually increases to a level greater than the first threshold but less than the second threshold, indicating a relatively drastic change in the heat load, a pre-adjustment mechanism for relatively drastic heat load changes is implemented, namely, lowering the target return air temperature. This will be explained in detail in step 103 below and is therefore not described in detail here.

[0106] If the heat load changes and gradually increases to a level greater than the second threshold, indicating a very drastic change in heat load, a pre-adjustment mechanism for this drastic change is required. This involves simultaneously lowering the target return air temperature and the target supply air temperature. This triggers an incremental adjustment of the fresh air valve opening and the supply air fan frequency in advance to quickly stabilize the cold aisle temperature change.

[0107] When the heat load change rate increases above the second threshold, the target supply air temperature is lowered. At this point, the difference between the current supply air temperature and the target supply air temperature increases, triggering an incremental adjustment of the blower frequency. When the cold aisle temperature reflects the heat load change, the blower frequency is preemptively increased, accelerating the recovery of the cold aisle temperature and stabilizing it within the set range.

[0108] In some embodiments, step 102 further includes the following sub-steps:

[0109] When the heat load change rate decreases to be less than the third threshold, the initial target supply air temperature is restored.

[0110] When the above-mentioned heat load change rate increases to be greater than the second threshold value, after the pre-adjustment of lowering the target return air temperature and the target supply air temperature is taken, the heat load change rate will gradually decrease. When it is detected that the heat load change rate is reduced to the third threshold value, it is deemed that the pre-adjustment is completed, and the target supply air temperature is restored to the initial value, so that the supply air temperature and the blower can be normally controlled according to the initial target supply air temperature.

[0111] Step 103: Control the opening of the fresh air valve according to the current return air temperature.

[0112] In some embodiments, the relationship between the current return air temperature and the target return air temperature is determined based on the detected current return air temperature. If the current return air temperature is greater than the target return air temperature, the opening of the fresh air valve is increased; if the current return air temperature is less than the target return air temperature, the opening of the fresh air valve is decreased.

[0113] As an example, when the temperature in the cold channel rises due to changes in the heat load equipment, causing the current return air temperature to be greater than the target return air temperature, the opening of the fresh air valve is increased to increase the fresh air volume. The increase in the supply air volume allows more lower temperature air to be transported to the cold channel per unit time, thereby improving the heat exchange efficiency and maintaining the temperature of the cold channel.

[0114] In some embodiments, step 103 specifically includes the following sub-steps:

[0115] In sub-step S21 , when the heat load change rate is less than a first threshold, an initial target return air temperature is obtained.

[0116] When the heat load change rate is less than the first threshold, it means that the heat load change rate is not drastic. At this time, according to the normal processing flow, the opening of the fresh air valve can be controlled according to the detected current return air temperature and the initial target return air temperature, without the need for a pre-adjustment mechanism.

[0117] Sub-step S22: performing closed-loop control on the opening of the fresh air valve according to the current return air temperature and the target return air temperature.

[0118] The closed-loop control continuously monitors the actual state of the return air temperature through the temperature sensor, and compares the current return air temperature with the target return air temperature. The fresh air valve actuator adjusts the output fresh air valve opening, thereby reducing the deviation between the current return air temperature and the target return air temperature, so that the current return air temperature always follows the target return air temperature or stabilizes within the set range, forming a "measurement-comparison-correction" cycle control.

[0119] In some embodiments, sub-step S22 includes the following specific steps:

[0120] determining an opening adjustment amount of the return air valve according to a difference between the current return air temperature and the target return air temperature;

[0121] The opening of the fresh air valve is controlled according to the opening adjustment amount.

[0122] As an example, when the heat load changes, the cold channel temperature is affected and changes first. The current return air temperature is continuously monitored by the temperature sensor and compared with the target return air temperature. When a deviation is detected between the two, the PID algorithm calculates the fresh air valve opening increment based on the deviation between the two, which is executed by the fresh air valve actuator to increase the opening of the fresh air valve to adjust and stabilize the cold channel temperature.

[0123] In actual applications, a significant increase in the fresh air valve opening reduces the supply air temperature, which in turn reduces the blower frequency. During this process, the system gradually stabilizes. When the heat load in the cold aisle fluctuates less, the fresh air valve opening adjustment range is also smaller, and the blower frequency adjustment range is correspondingly smaller, or even non-existent. This effectively blocks the transmission of system disturbances and ensures the stability of system operation.

[0124] In some embodiments, step 103 further includes the following sub-steps:

[0125] When the heat load change rate increases to be greater than a first threshold and less than a second threshold, the target return air temperature is lowered, wherein the first threshold is less than the second threshold.

[0126] By setting the first threshold and the second threshold, the heat load change rate is divided into two levels. When the heat load changes and gradually increases to a level greater than the first threshold and less than the second threshold, it means that the heat load has changed more drastically. In this case, it is necessary to adopt a pre-adjustment mechanism for more drastic heat load changes, that is, to lower the target return air temperature.

[0127] After lowering the target return air temperature, the current return air temperature deviates from the target return air temperature, triggering the system to incrementally adjust the opening of the fresh air valve. This allows the fresh air valve to open wider in advance when the cold aisle temperature reflects the change in heat load, thus stabilizing the cold aisle temperature in a timely manner.

[0128] In some embodiments, the adjustment of the fresh air valve will cause a certain change in the supply air temperature, which in turn triggers the adjustment of the supply fan frequency. In this process, the fresh air valve will be adjusted by the return air temperature, and the supply air temperature will be adjusted by the supply fan. The two will coordinate with each other to gradually stabilize the temperature of the cold channel.

[0129] In some embodiments, step 103 further includes the following sub-steps:

[0130] When the heat load change rate decreases to less than a third threshold, the initial target return air temperature is restored; the third threshold is less than the first threshold.

[0131] If the heat load change rate increases above the first threshold, pre-conditioning is initiated to lower the target return air temperature, triggering the system to incrementally adjust the opening of the fresh air valve in advance. After pre-conditioning is initiated, the heat load change rate gradually decreases. When the heat load change rate decreases to the third threshold, pre-conditioning is considered complete and the target return air temperature is restored to its initial value. Normal control of the return air temperature and fresh air valve is then maintained based on the initial target return air temperature.

[0132] In some embodiments, step 103 further includes the following sub-steps:

[0133] When the heat load change rate increases to be greater than the second threshold, lowering the target return air temperature;

[0134] When the heat load change gradually increases to a level greater than the second threshold, indicating a very drastic heat load change, a pre-adjustment mechanism for this drastic heat load change is required. This involves simultaneously lowering the target return air temperature and the target supply air temperature. This triggers an incremental adjustment of the fresh air valve opening and the supply air fan frequency in advance to quickly stabilize the cold aisle temperature change.

[0135] When the heat load change rate increases to exceed the second threshold, the target return air temperature is lowered. At this point, the difference between the current return air temperature and the target return air temperature increases, triggering an incremental adjustment of the fresh air valve opening. When the cold aisle temperature feedback reflects the heat load change, the fresh air valve opening is already increased in advance, accelerating the recovery of the cold aisle temperature and stabilizing it within the set range.

[0136] In some embodiments, step 103 further includes the following sub-steps:

[0137] When the heat load change rate decreases to be less than the third threshold, the initial target return air temperature is restored.

[0138] When the above-mentioned heat load change rate increases to be greater than the second threshold value, after pre-adjustment of lowering the target return air temperature and the target supply air temperature is taken, the heat load change rate will gradually decrease. When it is detected that the heat load change rate is reduced to the third threshold value, it is considered that the pre-adjustment is completed, and the target return air temperature is restored to the initial value, so that the return air temperature and the fresh air valve can be normally controlled according to the initial target return air temperature.

[0139] The embodiment of the present invention detects the current supply air temperature of the blower, thereby controlling the operating frequency of the blower according to the current supply air temperature; and detects the current return air temperature of the return air outlet, thereby controlling the opening of the fresh air valve according to the current return air temperature.

[0140] When outdoor temperature fluctuations cause minor fluctuations in supply air temperature, the cold aisle temperature can be maintained stable by controlling the operating frequency of the supply fan. When return air temperature in the cold aisle fluctuates slightly, the fresh air valve opening can be controlled to maintain a stable temperature. When return air temperature in the cold aisle fluctuates dramatically due to changes in heat load, the target return air temperature or target supply air temperature is pre-adjusted based on the rate of change of the heat load, effectively improving the system's control response speed and shortening the time it takes for the system to enter stable operation.

[0141] The supply air fan and fresh air valve are adjusted according to the supply air temperature and return air temperature respectively, which can respond and adjust promptly to temperature changes in different areas, while reducing unnecessary coordination time and allowing the computer room temperature to reach a stable state in a shorter time.

[0142] It should be noted that for the sake of simplicity, the method embodiments are described as a series of actions. However, those skilled in the art should be aware that the embodiments of the present invention are not limited by the order of the actions described, because according to the embodiments of the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0143] Figure 3 This is an application flow chart of an air treatment method for a computer room provided by an embodiment of the present invention.

[0144] In order to enable those skilled in the art to better understand the embodiments of the present invention, refer to Figure 3 , the embodiments of the present invention are described through multiple examples:

[0145] 1) When the outdoor air temperature rises, causing the supply air temperature to rise:

[0146] It is detected that the current supply air temperature deviates from the target supply air temperature set by the first PID control algorithm. The first PID control algorithm calculates the supply fan frequency increment and increases the supply fan frequency through the supply fan inverter, thereby increasing the air supply volume and preventing the interference caused by the outdoor temperature change from being transmitted to the cold channel.

[0147] When the outdoor temperature rises rapidly or the temperature difference is large, the first PID control algorithm adjusts the fan frequency to the maximum value, but this cannot eliminate the impact of the outdoor temperature on the supply air temperature. This interference is transmitted to the cold aisle, causing the cold aisle temperature to rise. The cold aisle temperature sensor detects a deviation between the cold aisle temperature and the cold aisle temperature setpoint of the second PID control algorithm. The second PID control algorithm calculates the fresh air valve opening increment and increases the fresh air valve opening through the fresh air valve actuator to regulate and stabilize the cold aisle temperature.

[0148] When both the first PID control algorithm and the second PID control algorithm are adjusted to the upper limit and still cannot stabilize the cold channel temperature, the system will turn on the compressor unit for cooling to stabilize the cold channel temperature.

[0149] It is worth noting that the cold aisle temperature refers to the return air temperature detected by the temperature sensor installed near the return air outlet in the cold aisle.

[0150] In addition, the first PID control algorithm and the second PID control algorithm are only used to distinguish between two control algorithms for different control objects, namely, controlling the blower and the fresh air valve.

[0151] 2) When a small increase in heat load causes the cold aisle temperature to rise:

[0152] When the heat load increases, the air in the cold aisle absorbs heat, causing the cold aisle temperature to rise, deviating from the cold aisle temperature set by the second PID control algorithm. The second PID control algorithm calculates the fresh air valve opening increment and increases the fresh air valve opening through the fresh air valve actuator, thereby increasing the fresh air volume and regulating and stabilizing the cold aisle temperature. When the fresh air valve opening increases significantly, the supply air temperature decreases, triggering the first PID control algorithm to gradually reduce the blower frequency, gradually stabilizing the system.

[0153] When the heat load fluctuates slightly, the fresh air valve opening adjustment range is relatively small, and the fan frequency adjustment range is correspondingly smaller, or even no adjustment is made. This can effectively block the transmission of system disturbances and ensure the stability of system operation.

[0154] 3) When the heat load increases significantly and triggers the pre-regulation mechanism:

[0155] Using temperature sensors installed at each heat-generating device, the RMS temperature of the heat load is collected and the rate of change of the heat load is calculated based on a set period. Three thresholds are set for the rate of change of the heat load: the third threshold < the first threshold < the second threshold.

[0156] When the heat load change rate exceeds the first threshold, the target cold aisle temperature is lowered, increasing the difference between the current and target cold aisle temperatures. This triggers the second PID control algorithm to preemptively adjust the fresh air valve opening. When the cold aisle temperature reflects the heat load change, the fresh air valve is already opened wide, thus promptly stabilizing the cold aisle temperature. If this pre-adjustment mechanism reduces the heat load change rate to below the third threshold, the initial target cold aisle temperature is restored, and normal fresh air valve control resumes.

[0157] When the heat load change rate exceeds the second threshold, the target cold aisle temperature and the target supply air temperature are lowered, thereby simultaneously triggering the second PID control algorithm to incrementally adjust the fresh air valve opening and the first PID control algorithm to incrementally adjust the supply air fan frequency in advance, thereby quickly stabilizing the change in cold aisle temperature. If this pre-adjustment mechanism reduces the heat load change rate to below the third threshold, the initial target cold aisle temperature and the initial target supply air temperature are restored, thereby resuming normal control of the fresh air valve and supply air fan.

[0158] Figure 4 This is a structural block diagram of an air handling device for a computer room provided by an embodiment of the present invention.

[0159] The machine room includes a cold channel area, a hot channel area and a mixed air area; a return air port is provided between the cold channel area and the hot channel area, a fresh air valve is provided in the mixed air area, and a blower is provided between the mixed air area and the cold channel area. Figure 4 As shown, an embodiment of the present invention provides an air handling device for a computer room, which may specifically include the following modules:

[0160] The temperature detection module 401 is used to detect the current supply air temperature of the blower and the current return air temperature of the return air outlet;

[0161] Because the supply air temperature is affected and changes before the cold aisle temperature after a change in outdoor temperature, the present invention detects the supply air temperature and can quickly determine that the outdoor temperature has changed. This allows for timely action to maintain a stable cold aisle temperature by adjusting the blower frequency. In the cold aisle, if the heat load changes, such as a sudden increase in the data processing capacity of heat-loaded equipment, the cold aisle temperature is affected and changes first. The present invention uses the return air temperature at the return air outlet as the cold aisle temperature, allowing for more timely action to maintain a stable cold aisle temperature by adjusting the fresh air valve opening.

[0162] In some embodiments, a temperature sensor is provided near the blower, and the current air supply temperature of the blower is detected by the temperature sensor.

[0163] In some embodiments, a temperature sensor is provided near the return air outlet of the cold channel area, and the current return air temperature of the return air outlet is detected by the temperature sensor.

[0164] The blower control module 402 is configured to control the operating frequency of the blower according to the current air supply temperature;

[0165] In some embodiments, the relationship between the current supply air temperature and the target supply air temperature is determined based on the detected current supply air temperature. If the current supply air temperature is greater than the target supply air temperature, the operating frequency of the blower is increased; if the current supply air temperature is less than the target supply air temperature, the operating frequency of the blower is decreased.

[0166] As an example, when the outdoor temperature rises slightly (still lower than the cold channel temperature), causing the current supply air temperature to be greater than the target supply air temperature, the operating frequency of the blower is increased, thereby increasing the supply air volume. The increase in the supply air volume allows more lower temperature air to be transported to the cold channel per unit time, thereby improving the heat exchange efficiency and maintaining the cold channel temperature.

[0167] It is worth noting that in actual application scenarios, the outdoor temperature may be higher than the cold channel temperature. In this case, even if the operating frequency of the blower and the opening of the fresh air valve are adjusted to the maximum value, the cold channel temperature cannot be maintained. In this case, the compressor unit needs to be turned on for cooling to stabilize the cold channel temperature.

[0168] The fresh air valve control module 403 is used to control the opening of the fresh air valve according to the current return air temperature.

[0169] In some embodiments, the relationship between the current return air temperature and the target return air temperature is determined based on the detected current return air temperature. If the current return air temperature is greater than the target return air temperature, the opening of the fresh air valve is increased; if the current return air temperature is less than the target return air temperature, the opening of the fresh air valve is decreased.

[0170] As an example, when the temperature in the cold channel rises due to changes in the heat load equipment, causing the current return air temperature to be greater than the target return air temperature, the opening of the fresh air valve is increased to increase the fresh air volume. The increase in the supply air volume allows more lower temperature air to be transported to the cold channel per unit time, thereby improving the heat exchange efficiency and maintaining the temperature of the cold channel.

[0171] In some embodiments, the apparatus further comprises the following modules:

[0172] The heat load change rate acquisition module is used to obtain the heat load change rate of the heat load device.

[0173] Heat-loaded equipment refers to devices that generate heat during operation and require a cooling system to maintain a normal temperature. During operation, these devices release heat (i.e., heat load) into the surrounding environment. The heat load rate of change, which reflects the fluctuation in heat generated by the equipment per unit time, is used to quantify the rate of increase or decrease in heat load and is a crucial parameter for designing cooling systems and ensuring stable equipment operation.

[0174] As an example, in an actual application scenario, if the computer equipment in the computer room suddenly needs to process a large amount of data, a large amount of heat will be generated during operation, and the heat load changes drastically.

[0175] However, it takes a certain amount of time for the change in heat load to be fed back to the air handling system through the return air temperature. As a result, the air handling system will only adjust to maintain the temperature of the cold channel after a certain period of time has passed since the heat load changed. This makes the temperature adjustment of the cold channel time-consuming and is not conducive to system stability.

[0176] By obtaining the heat load change rate of the heat load equipment and establishing a pre-regulation mechanism based on the heat load change rate, the present invention enables the air handling system to obtain feedback on the heat load change in a relatively short period of time and triggers the pre-regulation mechanism in advance before the cold channel temperature changes, which is conducive to the rapid stabilization of the cold channel temperature.

[0177] In some embodiments, the blower control module 402 includes the following submodules:

[0178] a target supply air temperature acquisition submodule, configured to acquire an initial target supply air temperature when the heat load change rate is less than a first threshold;

[0179] a blower control submodule, configured to perform closed-loop control on the operating frequency of the blower according to the current supply air temperature and the target supply air temperature;

[0180] In some embodiments, the fresh air valve control module 403 includes the following submodules:

[0181] a target return air temperature acquisition submodule, configured to acquire an initial target return air temperature when the heat load change rate is less than a first threshold;

[0182] The fresh air valve control submodule is used to perform closed-loop control on the opening of the fresh air valve according to the current return air temperature and the target return air temperature.

[0183] Closed-loop control is an automatic control method with real-time feedback adjustment. Specifically, closed-loop control continuously monitors the actual state of the controlled object (such as the current supply air temperature) through sensors, and compares the measured value with the preset target value (such as the target supply air temperature). The actuator (such as the blower driven by the frequency converter) then adjusts the output to reduce the deviation between the actual value and the target value, so that the controlled object always follows the preset target value or stabilizes within the set range, forming a "measurement-comparison-correction" cycle control.

[0184] Closed-loop control offers strong interference resistance and adaptability. For example, in supply air temperature control, if a sudden change in outdoor temperature or a change in duct resistance causes fluctuations in air volume, closed-loop control can immediately detect temperature deviations from the target value through real-time feedback and automatically adjust the fan frequency to compensate for the disturbance, thereby preventing temperature disturbances in the cold aisle. Furthermore, closed-loop control eliminates steady-state errors through integral action and suppresses overshoot by predicting change trends through differential action, thereby achieving dynamic balancing with higher precision.

[0185] In addition, the closed-loop control in the embodiment of the present invention refers to a control algorithm, which can be a PID control algorithm, a fuzzy control algorithm, a fuzzy PID control algorithm, etc. The present invention does not limit the specific type of closed-loop control.

[0186] In some embodiments, the fresh air valve control module 403 further includes the following submodules:

[0187] The first target return air temperature control submodule is configured to lower the target return air temperature when the heat load change rate increases to a value greater than a first threshold and less than a second threshold; the first threshold is less than the second threshold.

[0188] In some embodiments, the fresh air valve control module 403 further includes the following submodules:

[0189] The second target return air temperature control submodule is configured to restore the initial target return air temperature when the heat load change rate decreases to less than a third threshold value; the third threshold value is less than the first threshold value.

[0190] In some embodiments, the blower control module 402 further includes the following submodules:

[0191] a first target supply air temperature control submodule, configured to lower the target supply air temperature when the heat load change rate increases to be greater than the second threshold;

[0192] In some embodiments, the fresh air valve control module 403 further includes the following submodules:

[0193] The third target return air temperature control submodule is configured to lower the target return air temperature when the heat load change rate increases to be greater than the second threshold.

[0194] In some embodiments, the blower control module 402 further includes the following submodules:

[0195] a second target supply air temperature control submodule, configured to restore the initial target supply air temperature when the heat load change rate decreases to less than the third threshold;

[0196] In some embodiments, the fresh air valve control module 403 further includes the following submodules:

[0197] The fourth target return air temperature control submodule is configured to restore the initial target return air temperature when the heat load change rate decreases to less than the third threshold.

[0198] In some embodiments, the heat load change rate acquisition module includes the following submodules:

[0199] A heat load temperature detection submodule, used to detect the heat load temperature of the heat load device;

[0200] The heat load change rate determination submodule is used to determine the heat load change rate according to the heat load temperature.

[0201] In some embodiments, the blower control submodule includes the following units:

[0202] a frequency adjustment amount determining unit, configured to determine a frequency adjustment amount of the blower according to a difference between the current supply air temperature and the target supply air temperature;

[0203] a blower control unit, configured to control the operating frequency of the blower according to the frequency adjustment amount;

[0204] In some embodiments, the fresh air valve control submodule includes the following units:

[0205] an opening adjustment amount determining unit, configured to determine an opening adjustment amount of the return air valve according to a difference between the current return air temperature and the target return air temperature;

[0206] The return air valve control unit is used to control the opening of the return air valve according to the opening adjustment amount.

[0207] The embodiment of the present invention detects the current supply air temperature of the blower, thereby controlling the operating frequency of the blower according to the current supply air temperature; and detects the current return air temperature of the return air outlet, thereby controlling the opening of the fresh air valve according to the current return air temperature.

[0208] When outdoor temperature fluctuations cause minor fluctuations in supply air temperature, the cold aisle temperature can be maintained stable by controlling the operating frequency of the supply fan. When return air temperature in the cold aisle fluctuates slightly, the fresh air valve opening can be controlled to maintain a stable temperature. When return air temperature in the cold aisle fluctuates dramatically due to changes in heat load, the target return air temperature or target supply air temperature is pre-adjusted based on the rate of change of the heat load, effectively improving the system's control response speed and shortening the time it takes for the system to enter stable operation.

[0209] The supply air fan and fresh air valve are adjusted according to the supply air temperature and return air temperature respectively, which can respond and adjust promptly to temperature changes in different areas, while reducing unnecessary coordination time and allowing the computer room temperature to reach a stable state in a shorter time.

[0210] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0211] An embodiment of the present invention also provides an electronic device, comprising: a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, the various processes of the above-mentioned embodiment of the air treatment method for the computer room are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0212] An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the various processes of the above-mentioned embodiment of the air treatment method for the computer room are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0213] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0214] Those skilled in the art will appreciate that embodiments of the present invention may provide methods, apparatus, or computer program products. Thus, embodiments of the present invention may take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0215] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems) and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing terminal device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0216] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0217] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0218] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0219] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or terminal device. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of additional identical elements in the process, method, article, or terminal device that includes the element.

[0220] The above is a detailed introduction to the air treatment method, device, electronic device and computer-readable storage medium for a computer room provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the ideas of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A method for treating air in a machine room, characterized in that: The machine room includes a cold channel area, a hot channel area and a mixed air area; a return air outlet is provided between the cold channel area and the hot channel area, a fresh air valve is provided in the mixed air area, and a blower is provided between the mixed air area and the cold channel area; The method comprises: Detecting the current supply air temperature of the blower and the current return air temperature of the return air outlet; Controlling the operating frequency of the blower according to the current air supply temperature; The opening of the fresh air valve is controlled according to the current return air temperature.

2. The air treatment method for a computer room according to claim 1, characterized in that: The cold channel area is provided with a heat load device; the method further comprises: Obtaining a heat load change rate of the heat load device; The controlling of the operating frequency of the blower according to the current air supply temperature includes: When the heat load change rate is less than a first threshold, obtaining an initial target air supply temperature; performing closed-loop control on the operating frequency of the blower according to the current supply air temperature and the target supply air temperature; The controlling of the opening of the fresh air valve according to the current return air temperature includes: When the heat load change rate is less than a first threshold, obtaining an initial target return air temperature; The opening of the fresh air valve is closed-loop controlled according to the current return air temperature and the target return air temperature.

3. The air treatment method for a computer room according to claim 2, characterized in that: The controlling the opening of the fresh air valve according to the current return air temperature further includes: When the heat load change rate increases to be greater than a first threshold and less than a second threshold, the target return air temperature is lowered; the first threshold is less than the second threshold.

4. The air treatment method for a computer room according to claim 3, characterized in that: The controlling the opening of the fresh air valve according to the current return air temperature further includes: When the heat load change rate decreases to less than a third threshold, the initial target return air temperature is restored; the third threshold is less than the first threshold.

5. The air treatment method for a computer room according to claim 4, characterized in that: The controlling the operating frequency of the blower according to the current air supply temperature further includes: When the heat load change rate increases to be greater than the second threshold, lowering the target supply air temperature; The controlling the opening of the fresh air valve according to the current return air temperature further includes: When the heat load change rate increases to be greater than the second threshold, the target return air temperature is lowered.

6. The air treatment method for a computer room according to claim 5, characterized in that: The controlling the operating frequency of the blower according to the current air supply temperature further includes: When the heat load change rate decreases to less than the third threshold, restoring the initial target supply air temperature; The controlling the opening of the fresh air valve according to the current return air temperature further includes: When the heat load change rate decreases to be less than the third threshold, the initial target return air temperature is restored.

7. The air treatment method for a computer room according to claim 2, characterized in that: The obtaining of the heat load change rate of the heat load device includes: detecting the heat load temperature of the heat load device; A heat load change rate is determined according to the heat load temperature.

8. The air treatment method for a computer room according to claim 2, characterized in that: The closed-loop control of the operating frequency of the blower according to the current supply air temperature and the target supply air temperature includes: determining a frequency adjustment amount of the blower according to a difference between the current supply air temperature and the target supply air temperature; controlling the operating frequency of the blower according to the frequency adjustment amount; The closed-loop control of the opening of the fresh air valve according to the current return air temperature and the target return air temperature includes: determining an opening adjustment amount of the return air valve according to a difference between the current return air temperature and the target return air temperature; The opening of the return air valve is controlled according to the opening adjustment amount.

9. An air handling device for a machine room, characterized in that: The machine room includes a cold channel area, a hot channel area and a mixed air area; a return air outlet is provided between the cold channel area and the hot channel area, a fresh air valve is provided in the mixed air area, and a blower is provided between the mixed air area and the cold channel area; The device comprises: A temperature detection module, configured to detect the current supply air temperature of the blower and the current return air temperature of the return air outlet; A blower control module, configured to control the operating frequency of the blower according to the current air supply temperature; The fresh air valve control module is used to control the opening of the fresh air valve according to the current return air temperature.

10. An electronic device, characterized in that: include: A processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the steps of the air treatment method for a computer room according to any one of claims 1 to 8 are implemented.

11. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the air treatment method for a computer room according to any one of claims 1 to 8 are implemented.

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