Air-cooling chilled water system and equipment cooling regulation and control method

Abstract

The embodiment of the invention provides an air-cooled chilled water system and an equipment cooling regulation and control method which can be applied to the technical field of operation and maintenance, in the system, water chilling units deployed in a plurality of common partitions and water chilling units deployed in redundant partitions are included, each common partition comprises N water chilling units, N is an integer greater than or equal to 1, and N is an integer greater than or equal to 2. The redundant partition comprises N water chilling units; each common subarea corresponds to one machine room area, and each common subarea comprises N water chilling units which provide cooling service for equipment in the corresponding machine room area; the N water chilling units contained in the redundant subarea are standby water chilling units of the common subareas, cooling service is provided for machine equipment in the corresponding machine rooms in a subarea mode, meanwhile, the influence range when the system breaks down is narrowed, and the construction cost of the system is reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of operation and maintenance, and in particular, to an air-cooled chilled water system and a method for regulating and controlling equipment cooling. Background Art

[0002] Air-cooled chilled water systems are widely used in fields such as communication and Internet to provide cooling services for various machine equipment in computer rooms. Compared with traditional room-level air-cooled precision air-conditioning systems, they have advantages such as high overall energy efficiency, small floor area, low investment cost, and centralized control. Under related technologies, an air-cooled chilled water system with a single-channel architecture is used to provide cooling services for machine equipment in multiple computer rooms at the same time.

[0003] However, once a failure such as chilled water leakage or water shortage occurs in an air-cooled chilled water system with a single-channel architecture, multiple computer rooms will be affected, and the affected range is relatively large; secondly, a large number of redundant chillers need to be configured for multiple computer rooms, increasing the construction cost of the system. Summary of the Invention

[0004] The embodiments of the present invention provide an air-cooled chilled water system and a method for regulating and controlling equipment cooling, which are used to provide cooling services for machine equipment in a computer room, reduce the impact range during system failures, and at the same time reduce the construction cost of the system.

[0005] On the one hand, the embodiments of the present application provide an air-cooled chilled water system, which includes:

[0006] Chillers respectively deployed in multiple common partitions, and chillers deployed in a redundant partition, where each common partition includes: N chillers, and the redundant partition includes: N chillers;

[0007] Each common partition corresponds to a computer room area, and the N chillers included in each common partition provide cooling services for the equipment in the corresponding computer room area;

[0008] The N chillers included in the redundant partition are standby chillers for the multiple common partitions.

[0009] Optionally, the air-cooled chilled water system further includes:

[0010] For each common partition, multiple primary pumps are deployed in the common partition, and the multiple primary pumps centrally supply water to the N chillers in the common partition;

[0011] N secondary pumps are deployed in the redundant partition, each secondary pump corresponds to one chiller in the redundant partition, and each secondary pump supplies water to the corresponding chiller.

[0012] Optionally, the air-cooled chilled water system further includes:

[0013] For each common partition, the N chillers in the redundant partition are connected to the outlet pipe of the common partition;

[0014] N valve groups are deployed on the outlet pipe of the common partition, and each valve group corresponds to a secondary pump, and is used to control the chiller corresponding to the corresponding secondary pump to provide cooling services for the equipment in the corresponding machine room area of the common partition.

[0015] Optionally, the air-cooled chilled water system further includes:

[0016] For each common partition, a bypass valve deployed on the bypass pipe of each common partition is used to control the bypass pipe to switch to the outlet pipe of the common partition when all the chillers in the common partition fail.

[0017] On the one hand, an embodiment of the present application provides a method for equipment cooling regulation, and the method includes:

[0018] For each common partition among the multiple common partitions included in the air-cooled chilled water system, when it is detected that a chiller in the common partition fails, at least one available unit is selected from the N chillers based on the respective first flag bits of the N chillers in the redundant partition, and the redundant partition is located in the air-cooled chilled water system;

[0019] Based on a preset load balancing strategy, a corresponding backup unit is determined from the at least one available unit;

[0020] Switch the cooling task of the failed chiller to the backup unit.

[0021] Optionally, the method for equipment cooling regulation further includes:

[0022] If the failure type of the failed chiller is a complete machine failure, then adjust the second flag bit of the failed chiller;

[0023] After switching the cooling task of the failed chiller to the backup unit, it further includes:

[0024] Adjust the first flag bit of the backup unit.

[0025] Optionally, before selecting at least one available unit from the N chillers based on the respective first flag bits of the N chillers in the redundant partition when it is detected that a chiller in the common partition fails, it further includes:

[0026] If the outlet water temperature of the chiller in the common partition exceeds the preset range and the duration is greater than the preset threshold, it is determined that the chiller has a fault.

[0027] Optionally, the device cooling control method further includes:

[0028] When it is detected that the chiller in the common partition has a fault, add the switching task of the faulty chiller to the task queue;

[0029] The step of selecting at least one available unit from the N chillers based on the respective first flag bits of the N chillers in the redundant partition further includes:

[0030] When the switching task of the faulty chiller is obtained from the task queue, select at least one available unit from the N chillers based on the respective first flag bits of the N chillers in the redundant partition.

[0031] Optionally, the device cooling control method further includes:

[0032] For the computer room area corresponding to the common partition, predict the required cooling capacity of the devices in the computer room area based on the environmental parameters of the computer room area;

[0033] Based on the required cooling capacity and the historical attribute parameters of the N chillers in the common partition, adjust the outlet water temperature of each of the N chillers in the common partition.

[0034] On the one hand, an embodiment of the present application provides a computer device, including:

[0035] A memory for storing program instructions;

[0036] A processor for calling the program instructions stored in the memory and executing the steps of the above device cooling control method according to the obtained program.

[0037] On the one hand, an embodiment of the present application provides a computer-readable storage medium storing a computer program executable by a computer device. When the program runs on the computer device, the computer is caused to execute the steps of the above device cooling control method.

[0038] On the one hand, an embodiment of the present application provides a computer program product, including a computer program stored on a computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by a computer device, the computer device is caused to execute the steps of the above device cooling control method.

[0039] In the embodiments of the present application, by deploying chillers in multiple common partitions and chillers in redundant partitions, each chiller in the common partition provides cooling services for the equipment in the corresponding computer room area, and the chiller in the redundant partition is used as the backup chiller for the common partition. In this way, the chillers are deployed in partitions, enabling each partition to have the ability to expand, reducing the construction cost of the chillers. Each common partition only supplies water to the corresponding computer room area, and at the same time, the chiller in the redundant partition serves as the backup chiller for each common partition, narrowing the scope of influence caused by chiller failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0041] Figure 1 The structural schematic diagram of a system architecture provided by the embodiments of the present application;

[0042] Figure 2 The structural schematic diagram of an air-cooled chilled water system provided by the embodiments of the present application;

[0043] Figure 3 The flowchart of a method for regulating equipment cooling provided by the embodiments of the present application;

[0044] Figure 4 The structural schematic diagram of a control system provided by the embodiments of the present application;

[0045] Figure 5 The flowchart of a method for regulating equipment cooling provided by the embodiments of the present application;

[0046] Figure 6 The structural schematic diagram of a computer device provided by the embodiments of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0047] In order to make the objectives, technical solutions and beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0048] It should be noted that the brief description of the terms in this application is only for the convenience of understanding the following described embodiments, rather than intending to limit the embodiments of this application. Unless otherwise specified, these terms should be understood in their ordinary and common meanings.

[0049] In this application, the terms "first", "second", "third", etc. in the description, claims and the above-mentioned drawings are used to distinguish similar or like objects or entities, and do not necessarily mean to limit a specific order or sequence, unless otherwise noted. It should be understood that such terms can be interchanged under appropriate circumstances.

[0050] The terms "comprising" and "having" and any variations thereof are intended to cover but not exclusively include. For example, a product or device comprising a series of components does not necessarily have to be limited to all the components clearly listed, but may include other components not clearly listed or inherent to these products or devices.

[0051] The term "module" refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic or a combination of hardware or / and software code that can perform functions related to that element.

[0052] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of this application, rather than to limit them; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of this application.

[0053] The following gives a brief introduction to the system architecture diagram applicable to the technical solutions of the embodiments of this application. It should be noted that the following described processes are only for illustrating the embodiments of this application rather than for limitation.

[0054] Refer to Figure 1 , which is a system architecture diagram applicable to the embodiments of this application. The system architecture at least includes an air-cooled chilled water system 101 and a control system 102. The control system 102 includes a primary control system and a backup control system, and real-time communication can be carried out between the primary control system and the backup control system. The control system 102 realizes the regulation of each chiller in the air-cooled chilled water system 101 by executing the process of the equipment cooling regulation method in this application, and further realizes better cooling services for the computer room equipment.

[0055] The control system 102 can be an independent physical server, a server cluster or a distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, Content Delivery Network (CDN), and big data and artificial intelligence platforms, but is not limited thereto.

[0056] In the embodiments of the present application, the air-cooled chilled water system 101 and the control system 102 can be directly or indirectly communicatively connected through one or more networks. The network can be a wired network or a wireless network. For example, the wireless network can be a mobile cellular network or a Wireless-Fidelity (WIFI) network. Of course, it can also be other possible networks, and the embodiments of the present application do not limit this.

[0057] The embodiments of the present application provide an air-cooled chilled water system, which at least includes:

[0058] Chiller units respectively deployed in multiple common partitions, and chiller units deployed in a redundant partition, where each common partition includes: N chiller units, and the redundant partition includes: N chiller units; each common partition corresponds to a machine room area, and the N chiller units included in each common partition provide cooling services for the equipment in the corresponding machine room area; the N chiller units included in the redundant partition are standby chiller units for multiple common partitions.

[0059] In the present application, it is found through testing that the chiller units in a redundant partition can simultaneously serve as standby units for two common partitions to ensure that the air-cooled chilled water system maintains the best circulation state. Therefore, the present application takes two common partitions and one redundant partition as examples to elaborate the technical solution. It should be noted that the following introduced processes are only used to illustrate the embodiments of the present application rather than to limit.

[0060] Refer to Figure 2 , which is a schematic structural diagram of an air-cooled chilled water system provided by the embodiments of the present application. The air-cooled chilled water system 101 at least includes: a common partition 201, a redundant partition 202, a common partition 203, a machine room area 204, and a machine room area 205.

[0061] N chiller units 206 are respectively deployed in the common partition 201 and the common partition 203. Among them, the common partition 201 provides cooling services for the equipment in the machine room area 204, and the common partition 203 provides cooling services for the equipment in the machine room area 205; the N chiller units 206 included in the redundant partition 202 are standby chiller units 206 for the common partition 201 and the common partition 202.

[0062] In some embodiments, for each common partition, a plurality of primary pumps are deployed in the common partition, and the plurality of primary pumps centrally supply water to N chillers in the common partition; N secondary pumps are deployed in the redundant partition, each secondary pump corresponding to one chiller in the redundant partition, and each secondary pump supplies water to the corresponding chiller.

[0063] Specifically, taking N = 3 as an example, referring to Figure 2 , in common partitions 201 and 203, a plurality of primary pumps 207 are respectively deployed. The plurality of primary pumps 207 in common partition 201 centrally supply water to 3 chillers 206 in common partition 201, and the plurality of primary pumps 207 in common partition 203 centrally supply water to 3 chillers 206 in common partition 203; 3 secondary pumps 208 are deployed in redundant partition 202, each secondary pump 208 is connected to one chiller 206 in redundant partition 202, and each secondary pump 208 supplies water to the connected chiller 206.

[0064] In some embodiments, for each common partition, the N chillers in the redundant partition are connected to the outlet pipe of the common partition; N valve groups are deployed on the outlet pipe of the common partition, each valve group corresponding to one secondary pump, and are used to control the chiller corresponding to the respective secondary pump to provide cooling services for the equipment in the corresponding machine room area of the common partition.

[0065] Specifically, taking N = 3 as an example, referring to Figure 2 , in addition to being connected to chiller 206, the outlet pipe of common partition 201 is also connected to 3 chillers in redundant partition 202, and a valve group is deployed on the outlet pipe connected to each chiller in redundant partition 202. This valve group includes two valves (i.e., first valve 209 and second valve 210). Among them, the first valve 209 is located on the pipe connecting the plurality of primary pumps 207 and each secondary pump 208, and is used to control the primary pump 207 and the secondary pump 208 to supply water to the corresponding chiller 206 in redundant partition 202 together; the second valve 210 is located on the pipe connecting chiller 206 in redundant partition 202 and machine room area 204, and is used to control chiller 206 in redundant partition 202 to provide cooling services for the corresponding machine room area 203 of common partition 201.

[0066] Common partition 203 has the same deployment structure as common partition 201, and the two common partitions share the chillers 206 in a redundant partition 202 as standby chillers, which will not be elaborated here.

[0067] In some embodiments, for each common partition, a bypass valve deployed on the bypass pipeline of each common partition is used to control the bypass pipeline to switch to the outlet pipeline of the common partition when all the chillers in the common partition fail.

[0068] Specifically, referring to Figure 2 , there is a bypass pipeline 211 with a bypass valve 212 deployed between the three primary pumps 207 in the common partition 201 and the machine room area 204. When all the chillers 206 in the common partition 201 fail or stop operating, it is necessary to determine a standby unit from the three chillers 206 in the redundant partition 202 for the failed chiller 206 and operate the standby unit. During this process, since the water output of the primary pump 207 is much larger than the water output of the secondary pump 208 corresponding to the standby chiller, it affects the water flow circulation of the air-cooled chilled water system. Therefore, the bypass valve 212 on the bypass pipeline 211 is opened, so that the water flow of the primary pump 207 passes through the bypass pipeline 211 and the standby unit in the redundant partition, ensuring the water flow circulation of the air-cooled chilled water system.

[0069] For the common partition 203 and the corresponding machine room area 205, there is the same deployment structure, which will not be elaborated here.

[0070] In the embodiments of the present application, by deploying chillers in multiple common partitions and chillers in the redundant partition, the chillers in each common partition respectively provide cooling services for the equipment in the corresponding machine room area, and the chillers in the redundant partition are used as standby chillers for the common partitions. In this way, the chillers are deployed in partitions, enabling each partition to have the ability to expand, reducing the construction cost of the chillers. Each common partition only supplies water to the corresponding machine room area, and at the same time, the chillers in the redundant partition are used as standby chillers for the common partitions, narrowing the influence range caused by chiller failures.

[0071] Next, based on Figure 1 the system architecture diagram shown, the embodiments of the present application also provide a flow of an equipment cooling regulation method. The flow of this method can be executed by the interaction between the air-cooled chilled water system 101 and the control system 102, as Figure 3 shown, including the following steps:

[0072] Step 301, for each common partition among the multiple common partitions included in the air-cooled chilled water system, when it is detected that a chiller in the common partition fails, based on the first flag bits of the N chillers in the redundant partition, at least one available unit is selected from the N chillers. The redundant partition is located in the air-cooled chilled water system.

[0073] Specifically, referring to Figure 2Set a second flag bit for the common partition 201 and the common partition 203 respectively, and set a first flag bit for the redundant partition 202, as shown in Table 1.

[0074] Table 1

[0075]

[0076] In Table 1, the chiller in the common partition 201 has two second flag bits. The second flag bit being 1 indicates that the chiller in the common partition 201 is operating normally; the second flag bit being 4 indicates that the chiller in the common partition 201 is in a state of complete machine failure or shutdown for maintenance, that is, the chiller is unavailable.

[0077] The chiller in the common partition 203 has two second flag bits. The second flag bit being 2 indicates that the chiller in the common partition 203 is operating normally; the second flag bit being 4 indicates that the chiller in the common partition 203 is in a state of complete machine failure or shutdown for maintenance.

[0078] The redundant partition 202 has 4 first flag bits. The first flag bit being 1 indicates that the chiller in the redundant partition 202 has been put into operation in the common partition 201; the first flag bit being 2 indicates that the chiller in the redundant partition 202 has been put into operation in the common partition 203; the first flag bit being 3 indicates that the chiller in the redundant partition 202 is in a state of shutdown backup, that is, an available state; the first flag bit being 4 indicates that the chiller in the redundant partition 202 is in a state of complete machine failure or shutdown for maintenance, that is, an unavailable state.

[0079] When the chiller in the common partition or the redundant partition is in a state of complete machine failure or shutdown for maintenance (i.e., an unavailable state), subsequent staff are required to maintain the chiller or replace the chiller with a complete machine failure with a new one. When the first flag bit of the chiller in the redundant partition is 3 (in a state of shutdown backup), if the chiller in the common partition fails, the chiller with the first flag bit of 3 in the redundant partition can be used as an available unit.

[0080] In the embodiment of the present application, a first flag bit is set for the chiller in the redundant partition, and a second flag bit is set for the chillers in multiple common partitions. The operating states of each chiller in the common partition and the redundant partition are determined based on the flag bits, which not only helps with convenient management but also improves the accuracy of chiller switching, further ensuring the stability of the air-cooled chilled water system.

[0081] In some embodiments, if the outlet water temperature of the chiller in the common partition exceeds the preset range and the duration is greater than the preset threshold, it is determined that the chiller has failed.

[0082] Specifically, the outlet water temperature of the chiller in each common partition and redundant partition is monitored in real time. When the outlet water temperature of the chiller exceeds the preset range, for example, the outlet water temperature of the chiller is higher than 18 degrees Celsius or lower than 10 degrees Celsius, and the duration for which the outlet water temperature of the chiller exceeds the preset range is greater than the preset threshold, for example, the preset threshold is 3 minutes, it is determined that the chiller has a fault. The preset range of the outlet water temperature of the chiller and the preset threshold can be formulated according to the actual situation of the computer room area, and the present application does not make specific limitations.

[0083] In the embodiment of the present application, by setting the preset range of the outlet water temperature of the chiller and the preset threshold of the duration, a buffer interval is provided for the chiller to trigger an alarm, avoiding false alarms caused by short-term fluctuations in the outlet water temperature of the chiller, and improving the accuracy of standby unit switching.

[0084] In some embodiments, when it is detected that a chiller in the common partition has a fault, the switching task of the faulty chiller is added to the task queue; when the switching task of the faulty chiller is obtained from the task queue, at least one available unit is selected from the N chillers in the redundant partition based on their respective first flag bits.

[0085] Specifically, referring to Figure 2 , when the chillers in common partition 201 and common partition 203 fail simultaneously, or there are two or more chillers in common partition 201 that fail, the switching tasks of the faulty chillers are added to the task queue in sequence according to the time when the chillers fail. When the switching task of the faulty chiller is obtained from the task queue, check the respective first flag bits of the N chillers in the redundant partition, and select at least one chiller with the first flag bit being 3 (i.e., the shutdown backup state) as the available unit.

[0086] In the embodiment of the present application, the principle of first-in, first-out of the queue is used to manage the switching tasks of multiple faulty chillers, which can not only avoid the situation where multiple chillers in the redundant partition under shutdown maintenance compete for the same switching task, but also ensure that the same shutdown backup chiller in the redundant partition is started simultaneously by multiple common partitions in the concurrent state, thereby avoiding system uncertainty and possible resource conflicts, and effectively improving the accuracy of the fault switching operation.

[0087] Step 302, determine the corresponding backup unit from at least one available unit based on a preset load balancing strategy.

[0088] Specifically, the preset load balancing strategy can be to select the available unit with the lightest load as the backup unit, or to select the available unit that has most recently entered the shutdown backup state (i.e., the available state) as the backup unit, or to select the available unit with the shortest operating time so far as the backup unit, to ensure the reasonable utilization of the chiller in the redundant partition and reduce waste of resources.

[0089] Step 303: Switch the cooling task of the faulty chiller to the backup unit.

[0090] Specifically, referring to Figure 2 , when it is determined that the chiller 206 in the common partition 201 fails, the bypass valve 212 on the bypass pipeline 211 is automatically opened by the control system to ensure the water flow circulation of the air-cooled chilled water system. Then, according to the first flag bits of the three chillers 206 in the redundant partition 202 and the preset load balancing strategy, after determining the backup unit from the three chillers 206 in the redundant partition 202, the valve group of the backup unit (including the first valve 209 and the second valve 210) is opened, so that the cooling task of the faulty chiller is switched to the backup unit.

[0091] At this time, if all the chillers 206 in the common partition fail, the water flow of the primary pump 207 flows through the bypass pipeline 211 and the backup unit in the redundant partition 202 to reach the corresponding machine room area 204. Among them, the water flow through the bypass pipeline 211 is used to ensure the water flow circulation of the air-cooled chilled water system, and the backup unit in the redundant partition 202 provides cooling services for the equipment in the machine room area 204.

[0092] If not all the chillers 206 in the common partition fail, the water flow of the primary pump 207 flows through the non-faulty chillers 206 in the common partition 201 and the backup unit in the redundant partition 202 to provide cooling services for the equipment in the machine room area 204.

[0093] In the embodiment of the present application, when it is detected that a chiller in the common partition fails, according to the first flag bits of the chillers in the redundant partition, at least one available unit is determined from the N chillers in the redundant area, and the backup unit is determined from the at least one available unit by using the load balancing strategy, so that the backup unit takes over the cooling task of the faulty chiller in the common partition, reducing the influence range of the failure of the chiller in the common partition.

[0094] In some embodiments, if the failure type of the faulty chiller is a whole machine failure, the second flag bit of the faulty chiller is adjusted; the first flag bit of the backup unit is adjusted.

[0095] Specifically, when a fault occurs in the chiller in the common partition, the fault type is automatically judged as a whole-machine fault or a non-whole-machine fault according to the fault code. Among them, the whole-machine faults include: the failure of key components, such as the complete shutdown of the main circuit breaker, control system, and electric valve; the non-whole-machine faults include: the abnormality of partial functions, such as the abnormality of a single compressor, a single cooling fan, or a single temperature or pressure sensor.

[0096] In order to perform refined management on the faults occurring in the air-cooled chilled water system, a fault code description is preset in advance. Different fault types are set with different fault codes. The operation and maintenance personnel determine the type or nature of the fault based on the fault code and take corresponding countermeasures.

[0097] If it is determined based on the fault code that the fault type of the chiller is a whole-machine fault, the second flag bit of the chiller is adjusted from 1 (or 2, indicating) to 4, and the operation and maintenance personnel are reminded to replace the faulty chiller; if the fault type of the chiller is a non-whole-machine fault, the second flag bit of the chiller is not adjusted, and the staff is notified in real time to repair the chiller with a non-whole-machine fault. And a backup unit is determined from the redundant partition, and the first flag bit of the backup unit is adjusted from 3 to 1 (or 2), indicating that the chiller in the redundant partition is converted from the shutdown backup state to the state of providing cooling services for the common partition 201 (or common partition 203).

[0098] In some embodiments, for the machine room area corresponding to the common partition, based on the environmental parameters of the machine room area, the required cooling capacity of the equipment in the machine room area is predicted; based on the required cooling capacity and the historical attribute parameters of the N chillers in the common partition, the outlet water temperature of each of the N chillers in the common partition is adjusted.

[0099] Specifically, environmental parameters outside the machine room area, such as temperature, humidity, etc., are obtained, the area of the machine room area, the machine room power data, and the historical data of the operation parameters of the water pump and the running chiller are obtained, and these parameters are used as input parameters and input into the LightGBM machine learning model to predict the required cooling capacity of the equipment in the machine room area in the next period of time. The next period of time can be the next 6 hours, 12 hours, 24 hours, etc., and the present application does not make specific limitations.

[0100] The LightGBM machine learning model is an algorithm based on decision trees, adopting a gradient boosting framework, and gradually reducing the prediction error through a series of weak learners, and is widely used in tasks such as classification and regression.

[0101] Using a neural network algorithm, based on the historical attribute data of the chiller and pumps (including primary pumps and secondary pumps), such as the chilled water outlet temperature of the chiller, the return water temperature of the equipment in the machine room area, the number of equipment in the machine room area, the operating frequency of the pumps, and the number of operating units of the pumps and chillers, combined with the required cooling capacity for a future period output by the LightGBM machine learning model, predict the chilled water outlet temperature of the chiller and the operating frequency of the pumps for a future period. Among them, the neural network algorithm includes but is not limited to BP neural network models, long short-term memory networks, convolutional neural networks, etc.

[0102] In the embodiments of the present application, by predicting the required cooling capacity of the equipment in the machine room area and reversely adjusting the chilled water outlet temperature of each of the N chillers in the common partition based on the required cooling capacity, it is beneficial to find the balance between the power consumption of the chiller in the air-cooled chilled water system and the cooling of the equipment in the machine room area. It not only meets the cooling requirements of the equipment in the machine room area, but also significantly reduces the cooling energy consumption, improves the environmental sustainability of the system, and meets the high requirements for energy conservation and environmental protection in the machine room area.

[0103] To better explain the embodiments of the present application, the following introduces a method for equipment cooling regulation provided by the embodiments of the present application in combination with an actual scenario. The process of this method is Figure 1 executed by the control system 102 shown. Refer to Figure 4 , the control system includes a primary control system and a backup control system, and the primary control system and the backup control system can communicate in real time. The control system is used to manage the following modules: chiller code identification module, chiller fault switching module, chilled water system temperature protection module, and chilled water flow protection module.

[0104] Among them, the chiller code identification module is used to determine whether a complete machine failure or partial failure occurs by real-time monitoring the status flag bit of the chiller. Once a complete machine failure signal is detected, the switching task is immediately triggered. The chiller fault switching module is used to quickly switch the cooling task of the equipment to the chiller in the redundant partition when a chiller in the common partition fails. The chilled water system temperature protection module is used to monitor the chilled water outlet temperature of the chiller for overlimit. The chilled water flow protection module is used to complete the switching of the pump in the shortest time to maintain the stable operation of the cooling system.

[0105] The four modules jointly execute the method for equipment cooling regulation, including stages such as fault detection of chillers in the common partition, selection of standby units in the redundant partition, starting and switching to standby units, and confirmation of the status of the standby unit. The specific steps are as follows, as Figure 5 shown:

[0106] Step 501, the chilled water outlet temperature of the chiller in the common partition exceeds the preset range.

[0107] Step 502: Determine whether the duration exceeding the preset range is greater than the preset threshold. If yes, execute Step 503; otherwise, execute Step 504.

[0108] Step 503: The chiller in the common partition fails.

[0109] Step 504: Continue to operate the chiller in the common partition.

[0110] Step 505: Determine that the fault type of the chiller is a whole-machine fault.

[0111] Step 506: Set the second flag bit of the faulty chiller to 4.

[0112] Specifically, adjust the second flag bit of the faulty chiller from 1 to 4. The second flag bit being 1 indicates that the chiller is operating normally, and the second flag bit being 4 indicates that the chiller has a whole-machine fault or is under shutdown maintenance.

[0113] Step 507: Determine at least one chiller in the redundant partition with a shutdown backup status as an available unit, and select the available unit with the lowest running time as the backup unit.

[0114] Step 508: Turn on the secondary pump and valve group corresponding to the backup unit, adjust the first flag bit of the backup unit, and start the backup unit to put it into operation.

[0115] Specifically, when it is detected that all the chillers in the common partition have failed, automatically close the valves of the outlet pipes of the chillers in the common partition and the machine room area, and automatically open the bypass valves deployed on the outlet pipes of multiple primary pumps in the common partition and the machine room area to ensure the water flow circulation during the chiller switching and the operation of the secondary pump in the air-cooled chilled water system, and ensure the uninterrupted water supply.

[0116] In the embodiment of the present application, when it is detected that the chiller in the common partition fails, at least one available unit is determined from the N chillers in the redundant partition according to the first flag bit of the chillers in the redundant partition, and the backup unit is determined from at least one available unit by using the load balancing strategy, so that the backup unit takes over the cooling task of the faulty chiller in the common partition, reducing the influence range of the failure of the chiller in the common partition.

[0117] Based on the same technical concept, the embodiment of the present application provides a computer device, which can be Figure 1 the control system shown in Figure 6 as shown, including at least one processor 601 and a memory 602 connected to at least one processor. In the embodiment of the present application, the specific connection medium between the processor 601 and the memory 602 is not limited. Figure 6Take the connection between the processor 601 and the memory 602 through a bus as an example. The bus can be divided into an address bus, a data bus, a control bus, etc.

[0118] In the embodiment of the present application, the memory 602 stores instructions executed by at least one processor 601. By executing the instructions stored in the memory 602, the at least one processor 601 can execute the steps of the above device cooling regulation method.

[0119] Among them, the processor 601 is the control center of the computer device. It can use various interfaces and lines to connect various parts of the computer device. By running or executing the instructions stored in the memory 602 and calling the data stored in the memory 602, the device cooling regulation can be realized. Optionally, the processor 601 may include one or more processing modules. The processor 601 may integrate an application processor and a modem processor. Among them, the application processor mainly processes the operating system, user interface, application programs, etc., and the modem processor mainly processes wireless communication. It can be understood that the above modem processor may not be integrated into the processor 601. In some embodiments, the processor 601 and the memory 602 may be implemented on the same chip. In some embodiments, they may also be separately implemented on independent chips.

[0120] The processor 601 can be a general-purpose processor, such as a central processing unit (CPU), a digital signal processor, an application specific integrated circuit (ASIC), a field programmable gate array or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as being executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.

[0121] The memory 602, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules. The memory 602 can include at least one type of storage medium. For example, it can include flash memory, hard disks, multimedia cards, card-type memories, random access memory (RAM), static random access memory (SRAM), programmable read-only memory (PROM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), magnetic memories, magnetic disks, optical disks, and so on. The memory 602 is any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer device, but is not limited to this. The memory 602 in the embodiments of the present application can also be a circuit or any other device capable of implementing a storage function, for storing program instructions and / or data.

[0122] Based on the same inventive concept, an embodiment of the present application provides a computer-readable storage medium storing a computer program executable by a computer device. When the program runs on the computer device, it causes the computer device to execute the steps of the above-mentioned device cooling control method.

[0123] Based on the same inventive concept, an embodiment of the present application provides a computer program product including a computer program stored on a computer-readable storage medium. The computer program includes program instructions that, when executed by a computer device, cause the computer device to execute the steps of the above-mentioned device cooling control method.

[0124] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) containing computer-usable program code.

[0125] This application is described with reference to the flowcharts and / or block diagrams of methods, apparatus (systems), and computer program products according to the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and combinations of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to produce a machine, such that the instructions executed by the processor of the computer or other programmable data processing device generate means for implementing the functions specified in the flow Figure 1 one or more flows and / or blocks Figure 1 or means for implementing the functions specified in one or more blocks.

[0126] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory produce a manufacture including instruction means that implement the functions specified in the flow Figure 1 one or more flows and / or blocks Figure 1 or means for implementing the functions specified in one or more blocks.

[0127] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in the flow Figure 1 one or more flows and / or blocks Figure 1 or means for implementing the functions specified in one or more blocks.

[0128] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these modifications and variations.

Claims

1. An air-cooled chilled water system, characterized in that: include: Chillers respectively deployed in a plurality of common partitions, and chillers deployed in redundant partitions, wherein each common partition includes: N chillers, and the redundant partition includes: N chillers; Each common partition corresponds to a computer room area, and each common partition contains N chillers that provide cooling services for the equipment in the corresponding computer room area; The N chillers included in the redundant partition are backup chillers for the multiple common partitions.

2. The system according to claim 1, characterized in that Also includes: For each common partition, multiple primary pumps are deployed in the common partition, and the multiple primary pumps centrally supply water to N chillers in the common partition; N secondary pumps are deployed in the redundant partition, each secondary pump corresponds to a chiller in the redundant partition, and each secondary pump supplies water to the corresponding chiller.

3. The system according to claim 2, characterized in that Also includes: For each common partition, the N chillers in the redundant partition are connected to the outlet pipes of the common partition; N valve groups are deployed on the water outlet pipes of the commonly used partitions, and each valve group corresponds to a secondary pump, which is used to control the chiller corresponding to the corresponding secondary pump to provide cooling services for the equipment in the computer room area corresponding to the commonly used partitions.

4. The system according to claim 2, characterized in that Also includes: For each commonly used partition, a bypass valve is deployed on the bypass pipe of each commonly used partition, which is used to control the bypass pipe to switch to the water outlet pipe of the commonly used partition when all the chillers in the commonly used partition fail.

5. A method for controlling equipment cooling, characterized in that: include: For each common partition of a plurality of common partitions included in an air-cooled chilled water system, when a chiller in the common partition is detected to have a fault, at least one available chiller is selected from the N chillers based on respective first flag bits of N chillers in a redundant partition, the redundant partition being located in the air-cooled chilled water system; Based on a preset load balancing strategy, determining a corresponding backup unit from the at least one available unit; The cooling task of the failed chiller is switched to the backup chiller.

6. The method according to claim 5, characterized in that Also includes: If the fault type of the failed chiller is a complete machine failure, adjusting the second flag bit of the failed chiller; After the cooling task of the failed chiller is switched to the backup unit, the method further includes: Adjust the first flag bit of the backup unit.

7. The method according to claim 5, characterized in that When a failure of the chiller in the common partition is detected, before selecting at least one available chiller from the N chillers in the redundant partition based on the first flag bits of the N chillers, the method further includes: If the outlet water temperature of the chiller in the common partition exceeds a preset range and the duration is greater than a preset threshold, it is determined that the chiller has a fault.

8. The method according to claim 6, characterized in that Also includes: When a chiller in the common partition is detected to have failed, a switching task of the failed chiller is added to a task queue; The selecting at least one available chiller from the N chillers based on the first flag bits of the N chillers in the redundant partition further includes: When the switching task of the failed chiller is obtained from the task queue, at least one available chiller is selected from the N chillers based on the first flag bits of the N chillers in the redundant partition.

9. The method according to any one of claims 5 to 8, characterized in that: Also includes: For the computer room area corresponding to the common partition, based on the environmental parameters of the computer room area, predict the required cooling capacity of the equipment in the computer room area; Based on the required cooling capacity and the historical attribute parameters of the N chillers in the common partition, the outlet water temperature of each of the N chillers in the common partition is adjusted.

10. A computer device, characterized in that: include: A memory for storing program instructions; A processor is used to call the program instructions stored in the memory and execute the steps of any one of the methods of claims 5 to 9 according to the obtained program.

11. A computer-readable storage medium, characterized in that: It stores a computer program executable by a computer device. When the program is run on the computer device, the computer device executes the steps of any method described in claims 5 to 9.

12. A computer program product, characterized in that The computer program product comprises a computer program stored on a computer-readable storage medium, wherein the computer program comprises program instructions, and when the program instructions are executed by a computer device, the computer device is caused to execute the steps of the method as claimed in any one of claims 5 to 9.

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