Cleaning system for air cooling equipment, control method and air cooling equipment

Abstract

The cleaning system comprises a water inlet pipeline, a high-pressure spray head, a target sensor and a controller, the water inlet pipeline is used for conveying cleaning liquid to the high-pressure spray head, and the high-pressure spray head is arranged on the inner side of a filter screen of an outdoor unit of first air cooling equipment; the direction of cleaning liquid sprayed by the high-pressure spray head is from the inner side of the filter screen to the outer side of the filter screen, the target sensor is arranged on the filter screen, and the controller is connected with the high-pressure spray head and the target sensor; the target sensor is used for collecting detection data for determining whether the filter screen is blocked or not and sending the detection data to the controller; and the controller is used for receiving the detection data and starting the high-pressure spray head under the condition that the detection data meets a preset blocking condition, so that the high-pressure spray head sprays out cleaning liquid to clean the filter screen. And the response timeliness and the cleaning efficiency of the blocked filter screen are improved.

Description

Technical Field

[0001] This disclosure relates to the field of cooling equipment, and more specifically, to a cleaning system, control method, and air-cooled equipment for air-cooled equipment. Background Technology

[0002] As the infrastructure supporting massive computing power, data centers integrate a large number of IT (Information Technology) devices that continuously generate heat, such as GPUs (Graphics Processing Units), CPUs (Central Processing Units), and network switches. These require continuous cooling 24 / 7 to maintain stable operation. Air cooling is a common cooling method.

[0003] In related technologies, the common practice is for maintenance personnel to periodically clean and maintain the filters of the outdoor units of air-cooled equipment. However, this method is often delayed and prone to problems such as omissions, untimely emergency response, and long processing times. This can easily lead to the inability to dissipate heat from the data center in a timely manner, resulting in the risk of overheating. Summary of the Invention

[0004] This summary section is provided to briefly introduce the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0005] In a first aspect, this disclosure provides a cleaning system for air-cooled equipment. The cleaning system includes a water inlet pipe, a high-pressure nozzle, a target sensor, and a controller. The water inlet pipe is used to deliver cleaning fluid to the high-pressure nozzle. The high-pressure nozzle is disposed inside the filter screen of the outdoor unit of the first air-cooled equipment, and the direction of the cleaning fluid sprayed by the high-pressure nozzle is from the inside of the filter screen to the outside of the filter screen. The target sensor is disposed on the filter screen, and the controller is connected to the high-pressure nozzle and the target sensor respectively. The target sensor is used to collect detection data to determine whether the filter is clogged, and to send the detection data to the controller; The controller is used to receive the detection data and, when the detection data meets the preset blockage conditions, to activate the high-pressure nozzle so that the high-pressure nozzle sprays out cleaning fluid to clean the filter screen.

[0006] Secondly, this disclosure provides a control method applied to the cleaning system for air-cooled equipment described in the first aspect above. The cleaning system includes a water inlet pipe, a high-pressure nozzle, a target sensor, and a controller. The water inlet pipe is used to deliver cleaning fluid to the high-pressure nozzle. The high-pressure nozzle is disposed inside the filter screen of the outdoor unit of the first air-cooled equipment, and the direction of the cleaning fluid sprayed by the high-pressure nozzle is from the inside to the outside of the filter screen. The target sensor is disposed on the filter screen, and the controller is connected to both the high-pressure nozzle and the target sensor. The control method includes: Receive detection data collected by the target sensor to determine whether the filter is clogged; If the detection data meets the preset blockage conditions, the high-pressure nozzle is activated to spray cleaning fluid to clean the filter screen.

[0007] Thirdly, this disclosure provides an air-cooled device, including the cleaning system for air-cooled devices described in the first aspect above.

[0008] The above technical solution delivers cleaning fluid to a high-pressure nozzle via an inlet pipe. The high-pressure nozzle is positioned inside the filter screen of the outdoor unit of the first air-cooled device. A target sensor is installed on the filter screen to collect detection data to determine if the filter is clogged. When the detection data meets preset clogging conditions, the high-pressure nozzle is activated, spraying cleaning fluid to clean the filter screen. Because the cleaning fluid sprayed from the high-pressure nozzle moves from the inside to the outside of the filter screen, it effectively flushes out blockages, preventing them from accumulating inside. Furthermore, compared to manual methods, this approach improves the timeliness and efficiency of responding to clogged filters and avoids omissions. For air-cooled equipment used in data center middleware rooms, it reduces the risk of temperature rise in the data center.

[0009] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0010] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale. In the drawings: Figure 1 This is a schematic diagram of a cleaning system for air-cooled equipment according to an exemplary embodiment of the present disclosure; Figure 2 This is a side view of an outdoor unit of an air-cooled device equipped with a cleaning system, according to an exemplary embodiment of this disclosure; Figure 3 This is a front view of an outdoor unit of an air-cooled device equipped with a cleaning system, according to an exemplary embodiment of this disclosure; Figure 4 This is a schematic diagram of the processing logic of a cleaning system according to an exemplary embodiment of the present disclosure; Figure 5 This is a flowchart illustrating a control method according to an exemplary embodiment of the present disclosure; Figure 6 This is a structural block diagram of an air-cooled device according to an exemplary embodiment of the present disclosure. Detailed Implementation

[0011] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0012] It should be understood that the steps described in the method embodiments of this disclosure may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this disclosure is not limited in this respect.

[0013] The term "comprising" and its variations as used herein are open-ended inclusions, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below.

[0014] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0015] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0016] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0017] It is understood that before using the technical solutions disclosed in the various embodiments of this disclosure, users should be informed of the types, scope of use, and usage scenarios of the personal information involved in this disclosure in an appropriate manner in accordance with relevant laws and regulations, and user authorization should be obtained.

[0018] For example, upon receiving a user's active request, a prompt message is sent to the user to explicitly inform them that the requested operation will require the acquisition and use of the user's personal information. This allows the user to independently choose whether to provide personal information to the software or hardware, such as the electronic device, application, server, or storage medium performing the operations of this disclosed technical solution, based on the prompt message.

[0019] As an optional but non-limiting implementation, in response to a user's active request, sending a prompt message to the user can be done via a pop-up window, where the prompt message can be presented in text format. Furthermore, the pop-up window can also include a selection control allowing the user to choose "agree" or "disagree" to provide personal information to the electronic device.

[0020] It is understood that the above notification and user authorization process are merely illustrative and do not constitute a limitation on the implementation of this disclosure. Other methods that comply with relevant laws and regulations may also be applied to the implementation of this disclosure.

[0021] Meanwhile, it is understood that the data involved in this technical solution (including but not limited to the data itself, the acquisition or use of the data) shall comply with the requirements of relevant laws, regulations and related provisions.

[0022] With the rapid development of artificial intelligence technology, the demand for computing power and the corresponding heat dissipation requirements are growing exponentially. Air cooling equipment is a common cooling method; for example, air-cooled air conditioners can be used in data centers located in areas with low average annual temperatures. Their outdoor units are typically placed on rooftops, building sides, or other open areas, directly utilizing the convection of low-temperature outdoor air to cool the refrigerant or coolant in the heat exchanger, thus fully utilizing natural cooling sources. However, outdoor air usually contains a lot of dust, particulate matter, and pollen, so an air filter is generally installed on the outside of the heat exchanger to prevent clogging of the heat exchanger fins. But after a period of operation, the filter is also prone to becoming clogged, directly leading to a decrease in the air intake of the outdoor unit and insufficient heat dissipation. This results in the data center being unable to dissipate heat in time, posing a risk of overheating.

[0023] Furthermore, for units with externally mounted condensers, such as refrigerant pump air conditioners and air-cooled precision air conditioners, insufficient heat dissipation can lead to excessively high refrigerant condensation pressure, posing a risk of high-pressure shutdown protection. Regarding filter clogging, there are currently no effective proactive monitoring measures. These rely on routine inspections or passive feedback from alarms such as high pressure and room temperature rise, which are inherently delayed. If issues are not addressed promptly, the room may face further temperature increases. Additionally, routine inspections rely solely on visual observation by maintenance personnel, lacking accurate and scientific quantitative data. While manual cleaning and maintenance are common practices in data centers, these methods are also subject to delays and are relatively fixed, leaving filters vulnerable to clogging outside of designated cleaning periods. Furthermore, the method of having maintenance personnel periodically clean the filters of air-cooled outdoor units is time-consuming, and the heat exchanger fins are directly exposed to the elements during cleaning, also posing a risk of clogging.

[0024] In view of this, the present disclosure provides a cleaning system, control method and air-cooled equipment for air-cooled equipment to solve the above-mentioned technical problems.

[0025] The embodiments of this disclosure will be further explained below with reference to the accompanying drawings.

[0026] Figure 1 This is a schematic diagram illustrating a cleaning system for air-cooled equipment according to an exemplary embodiment of the present disclosure, with reference to... Figure 1 The cleaning system 10 includes a water inlet pipe 101, a high-pressure nozzle 102, a target sensor 103, and a controller 104. The water inlet pipe 101 is used to deliver cleaning fluid to the high-pressure nozzle 102. The high-pressure nozzle 102 is located inside the filter screen of the outdoor unit of the first air-cooled equipment, and the direction of the cleaning fluid sprayed by the high-pressure nozzle 102 is from the inside to the outside of the filter screen. The target sensor 103 is located on the filter screen. The controller 104 is connected to the high-pressure nozzle 102 and the target sensor 103 respectively. The target sensor 103 is used to collect detection data to determine whether the filter screen is clogged and send the detection data to the controller 104. The controller 104 is used to receive the detection data and, if the detection data meets the preset clogging conditions, activate the high-pressure nozzle 102 so that the high-pressure nozzle 102 sprays cleaning fluid to clean the filter screen.

[0027] In this embodiment, the cleaning fluid can be tap water, in which case the inlet pipe can be connected to a tap water pipe or a water tank. Alternatively, it can be other liquids, such as liquids containing detergent, in which case the inlet pipe can be connected to a water tank for storing liquids containing detergent. This disclosure does not impose any limitations on this. In addition, a high-pressure water pump can be installed in the inlet pipe to pump the cleaning fluid to the high-pressure nozzle, thereby enhancing the cleaning ability of the cleaning fluid.

[0028] like Figure 2 As shown, the air-cooled unit can draw air from both sides of the outdoor unit, therefore filters are installed on the outer sides of the outdoor heat exchangers on both sides. 21-1 and 21-2 are high-pressure nozzles installed inside the filters on both sides, and 22-1 and 22-2 are target sensors installed on the filters on both sides.

[0029] It should be noted that during the cleaning process of the filter screen, the corresponding air-cooling equipment can continue to operate or it can be turned off; this disclosure does not impose any restrictions on this.

[0030] Using the above technical solution, cleaning fluid is delivered to a high-pressure nozzle through an inlet pipe. The high-pressure nozzle is located inside the filter screen of the outdoor unit of the first air-cooled equipment, and a target sensor is installed on the filter screen to collect detection data to determine whether the filter screen is clogged. When the detection data meets preset clogging conditions, the high-pressure nozzle is activated to spray cleaning fluid to clean the filter screen. Because the cleaning fluid sprayed from the high-pressure nozzle moves from the inside to the outside of the filter screen, it can flush the blockages to the outside of the filter screen, preventing them from accumulating inside. Furthermore, compared to manual methods, this method improves the timeliness of response to clogged filters and cleaning efficiency, and avoids omissions. For air-cooled equipment used in data center server rooms, it can reduce the risk of temperature rise in the data center.

[0031] In one possible configuration, there are multiple high-pressure nozzles arranged horizontally above the filter screen.

[0032] For example, such as Figure 3 As shown, there are multiple high-pressure nozzles 31, which can be arranged horizontally above the filter screen to clean the entire screen from top to bottom, improving cleaning efficiency and capacity. The specific number can be determined according to the size of the filter screen, ensuring that the cleaning range of the nozzles can cover the entire screen.

[0033] In the most procedural way, the high-pressure nozzle is at least adjustable in height; the controller is also used to control the high-pressure nozzle to adjust its angle from top to bottom so that the high-pressure nozzle sprays cleaning fluid to clean the filter screen from top to bottom.

[0034] For example, the high-pressure nozzle can be adjusted up and down to ensure that the nozzle cleaning range covers the entire filter screen, thereby improving cleaning efficiency.

[0035] In other possible implementation methods, provided that the cleaning range of the high-pressure nozzle can cover the entire filter screen, the number of high-pressure nozzles can be one or more. The angle adjustment of the high-pressure nozzles includes up-down angle adjustment, left-right angle adjustment, 360-degree adjustment, etc. The installation position of the high-pressure nozzles can be any position inside the filter screen, including the upper part of the filter screen, the side of the filter screen, the lower part of the filter screen, etc., which can be determined according to the actual scenario. This disclosure does not impose any restrictions on this.

[0036] This enables automatic cleaning of the dirty filter screen, effectively solving the problem of the fins easily getting dirty and clogged during manual cleaning.

[0037] Alternatively, a sludge collection tank can be provided below the outer side of the filter screen to collect impurities and cleaning fluid washed down from the filter screen; this disclosure does not limit this.

[0038] In one possible manner, the number of target sensors is a first preset number, and the controller is also used to activate the high-pressure nozzle when the detection data of at least a second preset number of target sensors meet the preset blockage conditions, wherein the second preset number is less than or equal to the first preset number.

[0039] The first preset quantity is two, and the two target sensors are symmetrically distributed on both sides of the center point of the filter. Alternatively, the first preset quantity is multiple, and the multiple target sensors are evenly distributed on the filter.

[0040] For example, the number of target sensors can be one, such as Figure 3 The sensor 32-1 is set in the center of the filter screen. Of course, when there is only one sensor, it can also be set in other positions. This disclosure does not limit this.

[0041] For example, the number of target sensors can be two, and they are symmetrically distributed on both sides of the center point of the filter, for example... Figure 3 Sensors 32-2 and 32-3 are located in the upper left and lower right corners of the filter screen.

[0042] For example, there can be multiple target sensors, and these multiple target sensors are evenly distributed on the filter screen. Taking four target sensors as an example, it can be arranged as follows: Figure 3 Sensors 32-2, 32-3, 32-4, and 32-5, etc., are set at the four corners of the filter screen. The specific settings can be configured according to requirements, and this disclosure does not impose any restrictions on them.

[0043] This allows for the determination of whether to open or close the high-pressure nozzle based on detection data collected by one or more sensors. For example, it can be set to open the high-pressure nozzle when all detection data collected by all sensors meet a preset blockage condition, and close the high-pressure nozzle when all detection data collected by all sensors meet a preset stop condition. Alternatively, it can be set to open the high-pressure nozzle when any N sensors collect detection data meet a preset blockage condition, and close the high-pressure nozzle when any M sensors collect detection data meet a preset stop condition. N and M are positive integers less than a first preset number, and N and M can be the same or different, etc. The specific settings can be configured according to requirements, and this disclosure does not impose any restrictions on them.

[0044] In this embodiment, there can be multiple target sensors to improve the accuracy of detecting filter clogging. The cleaning process can be turned on or off based on the detection data collected by multiple target sensors, which can ensure that all parts of the filter achieve the ideal cleaning effect and avoid the situation where some areas are cleaned and the high-pressure nozzle is turned off, while other areas are not cleaned.

[0045] In one possible approach, the target sensor is a differential pressure sensor, and the detected data is the differential pressure value between the inside and outside of the filter. The preset clogging conditions include: the differential pressure value is greater than a first preset threshold.

[0046] For example, the target sensor can be a differential pressure sensor. Two pressure points of the differential pressure sensor can be set on the inner and outer sides of the filter screen, respectively, to collect the pressure difference between the inner and outer sides of the filter screen. Generally, the larger the pressure difference, the more severe the filter screen blockage. Therefore, a first preset threshold can be set, and if the detected pressure difference value exceeds the first preset threshold, it is determined that the filter screen is blocked, and the high-pressure nozzle is then activated to clean the filter screen. The first preset threshold can be set according to actual conditions, and this disclosure does not impose any limitations on it.

[0047] The differential pressure sensor can monitor the filter's clogging status in real time and automatically, so that it can detect and respond to the clogging as soon as possible and avoid any omissions.

[0048] In one possible approach, the target sensor is an airflow sensor, and the detected data is the airflow value inside the filter. The preset clogging conditions include: the airflow value is less than a second preset threshold.

[0049] For example, the target sensor can be an airflow sensor located inside the filter screen, capable of collecting airflow data from inside the filter screen. Generally, the lower the airflow inside the filter screen, the more severe the filter screen blockage. Therefore, a second preset threshold can be set, and if the detected airflow value exceeds the second preset threshold, it is determined that the filter screen is blocked, and then the high-pressure nozzle is activated to clean the filter screen. The second preset threshold can be set according to actual conditions, and this disclosure does not limit it.

[0050] Of course, air volume sensors can also be installed on both the inner and outer sides of the filter to determine whether the filter is clogged based on whether the air volume difference is greater than a third preset threshold. This disclosure does not impose any restrictions on this.

[0051] The airflow sensor can monitor the filter's clogging status in real time and automatically, so that it can detect and respond to the clogging as soon as possible and avoid any omissions.

[0052] Of course, in other possible implementations, the target sensor can also be any other sensor capable of detecting whether the filter is clogged, and this disclosure does not limit this.

[0053] In one possible manner, the controller is also used to receive new detection data sent by the target sensor and shut down the high-pressure nozzle when the new detection data meets the preset stop conditions.

[0054] Among them, the target sensor is a differential pressure sensor, and the preset stop condition can be that the differential pressure value is less than or equal to a third preset threshold, and the third preset threshold is less than or equal to a first preset threshold; the target sensor is an air volume sensor, and the preset stop condition can be that the air volume value is less than or equal to a fourth preset threshold, and the fourth preset threshold is less than or equal to a second preset threshold.

[0055] For example, during the cleaning process, the controller continuously receives new detection data collected by the target sensor. If the new detection data meets the preset stop condition, it means that the filter has been cleaned, and the high-pressure nozzle can be turned off to ensure that the air-cooled equipment continues to cool and dissipate heat.

[0056] In this embodiment, the start and stop of the high-pressure nozzles are controlled by quantifying the clogging status of the filter screen, thereby achieving self-cleaning of the filter screen of the air-cooled equipment, improving the cleaning efficiency of the filter screen and the control accuracy of the system's self-cleaning process.

[0057] For example, relative triggering conditions can be set for turning the high-pressure nozzles on and off. Taking differential pressure judgment as an example, the high-pressure nozzles can be set to turn on when the differential pressure value is greater than a first preset threshold, and to turn off when the differential pressure value is less than or equal to the first preset threshold. Alternatively, different triggering conditions can be set for turning the high-pressure nozzles on and off. For example, the high-pressure nozzles can be set to turn on when the differential pressure value is greater than a first preset threshold, and to turn off when the differential pressure value is less than a third preset threshold, where the third preset threshold is less than the first preset threshold. This disclosure does not impose any limitations on this. This improves the control accuracy of the cleaning system.

[0058] In some possible ways, the controller is also used to shut down the high-pressure nozzle and generate an alarm message if the high-pressure nozzle's operating time exceeds a preset time.

[0059] For example, considering that sensor malfunctions, severe filter clogging, etc., may prevent new detection data from meeting the preset stop conditions, leading to indefinite water spraying from the high-pressure nozzle, a maximum cleaning time can be set for each cycle. When the cleaning time exceeds the preset duration, the high-pressure nozzle can be shut off, automatically stopping the cleaning process and triggering an alarm. The alarm can be used to prompt maintenance of the cleaning system and / or the filter. The preset duration can be set according to factors such as filter specifications and local climate; this disclosure does not impose any restrictions on it. Furthermore, when maintenance personnel receive an alarm, they can go to the equipment site to check the situation and take countermeasures, such as fault repair or manual cleaning; this disclosure does not impose any restrictions on it either.

[0060] By setting a fallback plan for the maximum cleaning time per cycle, the system can avoid situations where the high-pressure nozzles spray water indefinitely due to sensor malfunctions, severe filter blockage, or other reasons, thus effectively improving the intelligence of the cleaning system.

[0061] In one possible configuration, the controller is also connected to a temperature sensor located in the computer room, where the temperature is regulated by multiple air-cooled devices. The controller is also used to receive a first temperature of the computer room collected by the temperature sensor, and to lower the air supply temperature of a second air-cooled device if the first temperature is greater than a first temperature threshold. The second air-cooled device is set within a preset range of the first air-cooled device.

[0062] For example, in a data center scenario, the server room regulates temperature through multiple air-cooled devices. Considering that the high-pressure spray nozzles spray water in the opposite direction to the air intake direction of the outdoor units, the filter cleaning process can affect the server room's cooling. In this embodiment, the controller can be connected to a temperature sensor installed in the server room to obtain the room's temperature. During the cleaning process of a particular air-cooled device's filter, if the server room temperature exceeds a first temperature threshold, the supply air temperature of other air-cooled devices within a preset range set for that device can be lowered to prevent the server room from experiencing a temperature rise risk or high-pressure shutdown.

[0063] The second air-cooled device can be an adjacent air-cooled device to the first air-cooled device, and can be specifically configured according to requirements; this disclosure does not impose any restrictions on this. In this embodiment, assuming that a temperature rise risk or high-pressure shutdown may occur if the computer room temperature exceeds a temperature value X, a first temperature threshold lower than this temperature value can be set to intervene before a temperature rise risk or high-pressure shutdown occurs in the computer room, thereby lowering the supply air temperature of other air-cooled devices within a preset range set by the first air-cooled device to avoid a temperature rise risk or high-pressure shutdown in the computer room.

[0064] It is worth noting that the temperature sensors can be matched one-to-one with the number of air-cooled devices. That is, each temperature sensor is set in the heat dissipation area where the corresponding air-cooled device is working in the computer room, or one temperature sensor corresponds to the heat dissipation area where several adjacent air-cooled devices are working in the computer room, thereby achieving precise control of the filter cleaning process of each air-cooled device.

[0065] In one possible configuration, the controller is also used to receive a second temperature of the room from a temperature sensor and to shut off the high-pressure nozzle if the second temperature exceeds a second temperature threshold.

[0066] For example, the second temperature threshold can be greater than the first temperature threshold but less than the temperature value X, so as to intervene before the computer room is at risk of temperature rise or high-pressure shutdown, shut down the high-pressure nozzles, ensure cooling priority, and avoid the computer room from being at risk of temperature rise or high-pressure shutdown.

[0067] For example, the second temperature can be a new temperature collected after the first temperature. This means that if the computer room temperature can be controlled, the filter cleaning process will proceed normally; if the computer room temperature continues to rise, the filter cleaning process will be stopped directly to prioritize cooling and avoid the risk of temperature rise or high-pressure shutdown in the computer room. This allows for different processing methods to be set for different computer room temperatures, achieving fine-grained control over the cleaning system.

[0068] In this embodiment, as Figure 4 As shown, taking a filter screen equipped with two differential pressure sensors as an example, if either the differential pressure value P1 collected by differential pressure sensor 1 or the differential pressure value P2 collected by differential pressure sensor 2 is less than the differential pressure threshold Ph, it indicates that the filter screen is clogged, and the high-pressure nozzle is turned on to clean the filter screen. If the cleaning time exceeds the time threshold, the high-pressure nozzle is turned off, and an alarm is generated to prompt maintenance personnel to intervene. If both the differential pressure value P1 collected by differential pressure sensor 1 and the differential pressure value P2 collected by differential pressure sensor 2 are greater than the differential pressure threshold P1, it indicates that the filter screen is clean, and the high-pressure nozzle can be turned off. Here, P1... <Ph。

[0069] If, during the cleaning process, it is detected that the machine room temperature T is greater than the temperature threshold T1, the supply air temperature of the adjacent air-cooled equipment is lowered. If the machine room temperature continues to rise and the temperature T is greater than the temperature threshold T2, the high-pressure nozzles are closed to ensure cooling priority, where T2 > T1.

[0070] With the above technical solution, the self-cleaning process and control logic of the external filter of the air-cooled equipment in the data center are realized. A row of high-pressure nozzles spraying water outward can be installed above the inner side of the filter, and differential pressure sensors are installed on the upper left and lower right sides of the filter respectively. During the operation of the air-cooled equipment, the differential pressure before and after the filter will increase as the filter becomes more clogged. When it is detected that the differential pressure at one of them rises to the set value Ph, the controller controls the high-pressure nozzles to start and automatically clean the clogged filter, and can also adjust the spraying angle of the high-pressure nozzles up and down to achieve full coverage of the filter cleaning. When the values of both differential pressure detection points drop to Pl, the filter cleaning is completed and the high-pressure nozzles are automatically closed.

[0071] In addition, considering that the spraying direction of the high-pressure nozzles is opposite to the air inlet direction of the external unit, it affects the air inlet of the unit during the cleaning process, thereby causing a decrease in the cooling capacity. The interlock control logic of multiple air-cooled equipment can be increased, that is, the temperature in the machine room is detected in real time. When the temperature in the machine room rises and exceeds a certain value, the set value of the supply air temperature of the adjacent air-cooled equipment is automatically lowered, or other air-cooled equipment can also be started. If the above emergency measures still cannot lower the temperature in the machine room, the filter cleaning process is directly stopped to ensure cooling priority.

[0072] In addition, in order to prevent the high-pressure nozzles from spraying water without limit due to reasons such as differential pressure sensor failure and serious filter blockage, the maximum single cleaning time of the high-pressure nozzles can be set. When the single cleaning time exceeds the maximum single cleaning time, the high-pressure nozzles are automatically closed and an alarm is issued to prompt the operation and maintenance personnel to intervene manually.

[0073] Compared with the manual regular operation and maintenance processing scheme in the related technology, this embodiment realizes operation and maintenance automation, adds a cleaning system for the filter and the corresponding control logic, and effectively solves the problems such as hysteresis existing in the related technology. At the same time, it also considers problems that may be encountered in subsequent operation and maintenance processes such as the impact of filter cleaning on cooling and differential pressure sensor failure, and proposes corresponding avoidance measures, which is beneficial to improving the operation and maintenance stability of the cleaning system.

[0074] In other possible implementation manners, a cleaning time period can also be set. For example, when the detected data meets the preset blockage condition, if the current time is within the set cleaning time period, the high-pressure nozzles are turned on, otherwise, wait until the cleaning time period arrives and then turn on the high-pressure nozzles. Among them, the cleaning time period can be at night when the machine room is relatively idle, and can be specifically set according to the actual situation, and this disclosure does not limit this.

[0075] This avoids the impact of cleaning filters during high-speed operation of computer room equipment on the cooling effect of the computer room, thus ensuring the stable operation of the computer room equipment.

[0076] In other possible implementation methods, cleaning temperature conditions can also be set. For example, if the detection data meets the preset blockage conditions, the high-pressure nozzle will be turned on if the room temperature is lower than the preset temperature; otherwise, the high-pressure nozzle will be turned on after the room temperature drops to the preset temperature.

[0077] The preset temperature can be set according to the actual situation. The room temperature can be the average room temperature or the room temperature corresponding to the air-cooled equipment to be cleaned. This disclosure does not limit this.

[0078] This avoids the filter cleaning process affecting the cooling effect of the computer room when the temperature is high, thus ensuring the stable operation of the computer room equipment.

[0079] Figure 5 This is a flowchart illustrating a control method according to an exemplary embodiment of the present disclosure, applied to the aforementioned cleaning system for air-cooled equipment. The cleaning system includes a water inlet pipe, a high-pressure nozzle, a target sensor, and a controller. The water inlet pipe delivers cleaning fluid to the high-pressure nozzle, which is disposed inside the filter screen of the outdoor unit of the first air-cooled equipment. The cleaning fluid sprayed from the high-pressure nozzle flows from the inside to the outside of the filter screen. The target sensor is disposed on the filter screen. The controller is connected to both the high-pressure nozzle and the target sensor. Figure 5 As shown, the control method includes: S501: Receives detection data collected by the target sensor to determine whether the filter is clogged; S502: If the detection data meets the preset clogging conditions, start the high-pressure nozzle to spray cleaning fluid to clean the filter screen.

[0080] Optionally, the method further includes: receiving new detection data sent by the target sensor, and shutting off the high-pressure nozzle when the new detection data meets a preset stop condition.

[0081] Optionally, the method further includes: shutting down the high-pressure nozzle and generating an alarm message if the operating time of the high-pressure nozzle exceeds a preset time.

[0082] Optionally, the controller is also connected to a temperature sensor installed in the computer room, and the computer room temperature is regulated by multiple air-cooling devices; the method further includes: receiving a first temperature of the computer room collected by the temperature sensor, and if the first temperature is greater than a first temperature threshold, lowering the air supply temperature of the second air-cooling device, wherein the second air-cooling device is set within a preset range of the first air-cooling device.

[0083] Optionally, the controller is also connected to a temperature sensor installed in the computer room, the computer room having its temperature regulated by multiple air-cooling devices; the method further includes: receiving a second temperature of the computer room collected by the temperature sensor, and shutting off the high-pressure nozzle when the second temperature is greater than a second temperature threshold.

[0084] Optionally, the number of target sensors is a first preset number; the method further includes: activating the high-pressure nozzle when the detection data of at least a second preset number of target sensors meet the preset blockage conditions, wherein the second preset number is less than or equal to the first preset number.

[0085] Optionally, the high-pressure nozzle can at least be adjusted vertically; the method further includes: controlling the high-pressure nozzle to adjust its angle from top to bottom, so that the high-pressure nozzle sprays cleaning fluid to clean the filter screen from top to bottom.

[0086] The specific embodiments and effects of the above control method have been described in detail in the embodiments of the corresponding cleaning system, and will not be repeated here.

[0087] Based on the same concept, this disclosure also provides an air-cooled device, such as... Figure 6 As shown, the air-cooled device 600 includes the cleaning system 10 for air-cooled devices described above.

[0088] For example, an air-cooled device 600 equipped with a cleaning system 10 can automatically clean the filter when it becomes clogged, flushing the blockage to the outside of the filter and preventing it from accumulating inside. Furthermore, compared to manual cleaning, this method improves the timeliness of response to clogged filters and cleaning efficiency, preventing any omissions. For air-cooled devices used in data center server rooms, this reduces the risk of temperature rise in the data center.

[0089] The above description is merely a preferred embodiment of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features disclosed in this disclosure that have similar functions.

[0090] Furthermore, while the operations are described in a specific order, this should not be construed as requiring these operations to be performed in the specific order shown or in a sequential order. In certain environments, multitasking and parallel processing may be advantageous. Similarly, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of this disclosure. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments.

[0091] Although the subject matter has been described using language specific to structural features and / or methodological logic, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are merely illustrative forms of implementing the claims. Regarding the apparatus in the above embodiments, the specific manner in which the various modules perform their operations has been described in detail in the embodiments relating to the method, and will not be elaborated upon here.

Claims

1. A cleaning system for air-cooled equipment, characterized in that, The cleaning system includes a water inlet pipe, a high-pressure nozzle, a target sensor, and a controller. The water inlet pipe is used to deliver cleaning fluid to the high-pressure nozzle. The high-pressure nozzle is located inside the filter screen of the outdoor unit of the first air-cooled equipment, and the direction of the cleaning fluid sprayed by the high-pressure nozzle is from the inside of the filter screen to the outside of the filter screen. The target sensor is located on the filter screen, and the controller is connected to the high-pressure nozzle and the target sensor respectively. The target sensor is used to collect detection data to determine whether the filter is clogged, and to send the detection data to the controller; The controller is used to receive the detection data and, when the detection data meets the preset blockage conditions, activate the high-pressure nozzle to spray cleaning fluid to clean the filter screen.

2. The cleaning system for air-cooled equipment according to claim 1, characterized in that, The controller is also configured to receive new detection data sent by the target sensor, and shut down the high-pressure nozzle when the new detection data meets a preset stop condition.

3. The cleaning system for air-cooled equipment according to claim 1, characterized in that, The controller is also configured to shut down the high-pressure nozzle and generate an alarm message if the operating time of the high-pressure nozzle exceeds a preset time.

4. The cleaning system for air-cooled equipment according to any one of claims 1-3, characterized in that, The controller is also connected to a temperature sensor located in the computer room, which regulates the temperature through multiple air-cooling devices. The controller is also configured to receive the first temperature of the computer room collected by the temperature sensor, and, if the first temperature is greater than the first temperature threshold, lower the air supply temperature of the second air-cooling device, wherein the second air-cooling device is set within the preset range of the first air-cooling device.

5. The cleaning system for air-cooled equipment according to any one of claims 1-3, characterized in that, The controller is also connected to a temperature sensor located in the computer room, which regulates the temperature through multiple air-cooling devices. The controller is also configured to receive a second temperature of the computer room collected by the temperature sensor, and shut down the high-pressure nozzle if the second temperature is greater than a second temperature threshold.

6. The cleaning system for air-cooled equipment according to any one of claims 1-3, characterized in that, The target sensor is a differential pressure sensor, the detection data is the differential pressure value between the inside and outside of the filter, and the preset clogging condition includes: the differential pressure value is greater than a first preset threshold.

7. The cleaning system for air-cooled equipment according to any one of claims 1-3, characterized in that, The target sensor is an airflow sensor, the detection data is the airflow value inside the filter, and the preset blockage condition includes: the airflow value is less than a second preset threshold.

8. The cleaning system for air-cooled equipment according to any one of claims 1-3, characterized in that, The number of target sensors is a first preset number; The controller is further configured to activate the high-pressure nozzle when the detection data of at least a second preset number of target sensors all meet the preset blockage condition, wherein the second preset number is less than or equal to the first preset number.

9. The cleaning system for air-cooled equipment according to claim 8, wherein the first preset quantity is two, and the two target sensors are symmetrically distributed on both sides of the center point of the filter screen.

10. The cleaning system for air-cooled equipment according to claim 8, wherein the first preset quantity is a plurality of sensors, and the plurality of target sensors are evenly distributed on the filter screen.

11. The cleaning system for air-cooled equipment according to any one of claims 1-3, characterized in that, The high-pressure nozzle can be adjusted at least vertically. The controller is also used to control the high-pressure nozzle to adjust its angle from top to bottom, so that the high-pressure nozzle sprays cleaning fluid from top to bottom to clean the filter screen.

12. The cleaning system for air-cooled equipment according to any one of claims 1-3, characterized in that, The number of high-pressure nozzles is multiple, and the multiple high-pressure nozzles are arranged horizontally above the filter screen.

13. A control method applied to the cleaning system for air-cooled equipment as described in any one of claims 1-12, characterized in that, The cleaning system includes a water inlet pipe, a high-pressure nozzle, a target sensor, and a controller. The water inlet pipe delivers cleaning fluid to the high-pressure nozzle, which is located inside the filter screen of the outdoor unit of the first air-cooled equipment. The cleaning fluid sprayed from the high-pressure nozzle flows from the inside to the outside of the filter screen. The target sensor is located on the filter screen. The controller is connected to both the high-pressure nozzle and the target sensor. The control method includes: Receive detection data collected by the target sensor to determine whether the filter is clogged; If the detection data meets the preset blockage conditions, the high-pressure nozzle is activated to spray cleaning fluid to clean the filter screen.

14. An air-cooled device, characterized in that, The air-cooled equipment includes the cleaning system for air-cooled equipment as described in any one of claims 1-12.

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