Control method and control device of machine room air conditioner and machine room air conditioner

Abstract

The application provides a control method and device of a machine room air conditioner and the machine room air conditioner. The method comprises the following steps: determining whether the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidifying cycle is within the predetermined change rate range based on the size relationship between the current change rate of the electrode humidifier in the evaporation stage of the current humidifying cycle and the current change rate threshold; in the case that it is determined that the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidifying cycle is not within the predetermined change rate range, determining the target drainage time of the electrode humidifier in the current humidifying cycle based on the relationship between the humidifying operation time change rate of the electrode humidifier and the time change rate range; opening the drainage valve and controlling the electrode humidifier to drain until the target drainage time is reached, thereby solving the problems that the setting real-time and flexibility of the drainage interval of the humidifying barrel are poor in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of computer room air conditioners, and in particular, to a computer room air conditioner control method, a computer room air conditioner control device, a computer readable storage medium, and a computer room air conditioner. BACKGROUND

[0002] A computer room air conditioner (i.e., a computer room precision air conditioner) usually uses an electrode humidifier for humidification. The principle of humidification by the electrode humidifier is as follows: an electrode sheet is inserted into a humidification barrel of the electrode humidifier containing tap water, and an electric current is generated after being powered on, so as to heat the tap water in the humidification barrel to generate steam, thereby realizing humidification of a predetermined area (an area where the computer room air conditioner is installed).

[0003] However, in actual application, since the mineral ions dissolved in the tap water cannot be evaporated, and as the water in the humidification barrel gradually increases, the ion concentration in the humidification barrel becomes higher and higher, causing the water conductivity to become high, the humidification efficiency to decrease, and the electrode to be prone to scaling. In the face of the above problems, it is usually necessary to empty the water and impurities in the humidification barrel and re-fill water, so as to maintain the water conductivity in the humidification barrel within a certain range, thereby ensuring the humidification effect and the service life of the humidification barrel.

[0004] In the prior art, the above problems are usually solved by using a timed drainage and timed cleaning method. For example, the electrode humidifier is opened for 20 seconds (i.e., a drainage time) after running for 1 hour to drain the electrode humidifier; and the drainage valve and the water inlet valve are opened simultaneously for 60 seconds (i.e., a drainage interval) after the electrode humidifier runs for 12 hours to clean the humidification barrel.

[0005] For the above solution, it is usually necessary to manually adjust the drainage time and the drainage interval according to the water quality and / or the running condition of the humidification barrel. This not only relies on human experience, but also easily leads to poor real-time performance and flexibility of the drainage time and the drainage interval, thereby affecting the humidification efficiency of the electrode humidifier. SUMMARY

[0006] The main purpose of the present application is to provide a computer room air conditioner control method, a computer room air conditioner control device, a computer readable storage medium, and a computer room air conditioner, so as to at least solve the problem of poor real-time performance and flexibility of the drainage interval of the humidification barrel in the prior art.

[0007] To achieve the above object, according to one aspect of the present application, a control method of a computer room air conditioner is provided, the computer room air conditioner comprising an electrode humidifier, the electrode humidifier comprising a humidifying barrel, a water inlet valve and a water outlet valve, the control method comprising: determining whether a change rate of ion concentration of the humidifying barrel in an evaporation stage of a current humidifying cycle is within a predetermined change rate range based on a size relationship between a current change rate of the electrode humidifier in the evaporation stage of the current humidifying cycle and a current change rate threshold; in a case where it is determined that the change rate of ion concentration of the humidifying barrel in the evaporation stage of the current humidifying cycle is not within the predetermined change rate range, determining a target water outlet time of the electrode humidifier in the current humidifying cycle based on a relationship between a humidifying operation time change rate of the electrode humidifier and a time change rate range, the humidifying operation time change rate being a ratio of a humidifying operation time of the electrode humidifier before water outlet of the current humidifying cycle to a humidifying operation time before water outlet of a previous humidifying cycle; opening the water outlet valve and controlling the electrode humidifier to perform water outlet until the target water outlet time is reached.

[0008] Optionally, determining the target water outlet time of the electrode humidifier in the current humidifying cycle based on the relationship between the humidifying operation time change rate of the electrode humidifier and the time change rate range comprises: in a case where the humidifying operation time change rate is within the time change rate range, determining a water outlet time of the electrode humidifier in the previous humidifying cycle as the target water outlet time of the electrode humidifier in the current humidifying cycle; in a case where the humidifying operation time change rate is greater than an upper limit value of the time change rate range, determining a difference between the water outlet time of the electrode humidifier in the previous humidifying cycle and a water outlet time adjustment value as the target water outlet time of the electrode humidifier in the current humidifying cycle; in a case where the humidifying operation time change rate is less than a lower limit value of the time change rate range, determining a sum of the water outlet time of the electrode humidifier in the previous humidifying cycle and the water outlet time adjustment value as the target water outlet time of the electrode humidifier in the current humidifying cycle, wherein the upper limit value of the time change rate range is a sum of 1 and a time change rate adjustment value, and the lower limit value of the time change rate range is a difference between 1 and the time change rate adjustment value.

[0009] Optionally, the determining whether the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidifying cycle is within the predetermined change rate range based on the size relationship between the current change rate of the electrode humidifier in the evaporation stage of the current humidifying cycle and the current change rate threshold value comprises: determining a ratio of a current current drop rate of the electrode humidifier in the evaporation stage of the current humidifying cycle to an initial current drop rate as the current change rate of the electrode humidifier in the current humidifying cycle, the initial current drop rate being a current drop rate of the electrode humidifier at the first time of water inflow; in a case where the current change rate of the electrode humidifier in the current humidifying cycle is greater than the current change rate threshold value, determining that the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidifying cycle is not within the predetermined change rate range; in a case where the current change rate of the electrode humidifier in the current humidifying cycle is less than or equal to the current change rate threshold value, determining that the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidifying cycle is within the predetermined change rate range.

[0010] Optionally, the process of determining the current drop rate of the electrode humidifier in the evaporation stage of the current humidifying cycle comprises: acquiring a current current value of the electrode humidifier in the current humidifying cycle, and determining whether the current current value of the electrode humidifier in the current humidifying cycle is less than or equal to a first predetermined current value; in a case where the current current value of the electrode humidifier in the current humidifying cycle is less than or equal to the first predetermined current value, determining the current current value of the electrode humidifier in the current humidifying cycle as a first current calculation value, and continuing to acquire a current value of the electrode humidifier after a predetermined time; and determining the current drop rate of the electrode humidifier in the evaporation stage based on the first current calculation value and the current value of the electrode humidifier after the predetermined time.

[0011] Optionally, the process of determining the current drop rate of the electrode humidifier in the evaporation stage based on the first current calculation value and the current value of the electrode humidifier after the predetermined time comprises: determining whether the current value of the electrode humidifier after the predetermined time is less than or equal to a second predetermined current value; in a case where the current value of the electrode humidifier after the predetermined time is less than or equal to the second predetermined current value, determining the current value of the electrode humidifier after the predetermined time as a second current calculation value; determining a difference between the first current calculation value and the second current calculation value to obtain a target difference value, and determining a ratio of the target difference value to the predetermined time as the current drop rate of the electrode humidifier in the evaporation stage of the current humidifying cycle.

[0012] Optionally, after determining that the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidifying cycle is within the predetermined change rate range, when the current change rate of the electrode humidifier in the current humidifying cycle is less than or equal to the current change rate threshold, the control method further comprises: opening the water inlet valve to replenish water to the humidifying barrel until the current value of the electrode humidifier is greater than or equal to a third predetermined current value; increasing the number of humidifying cycles of the electrode humidifier by 1, and the water inlet valve of the electrode humidifier is opened until the next water inlet valve opening is one humidifying cycle.

[0013] Optionally, the control method further comprises: determining the total number of continuous water discharges of the electrode humidifier; and when the total number of continuous water discharges of the electrode humidifier reaches a maximum discharge number, simultaneously opening the water discharge valve and the water inlet valve until a predetermined discharge interval is reached.

[0014] According to another aspect of the present application, a control device of a computer room air conditioner is provided, the computer room air conditioner comprising an electrode humidifier, the electrode humidifier comprising a humidifying barrel, a water inlet valve and a water discharge valve, the control device comprising: a first determination unit configured to determine whether the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidifying cycle is within a predetermined change rate range based on the size relationship between the current change rate of the electrode humidifier in the evaporation stage of the current humidifying cycle and a current change rate threshold; a second determination unit configured to, when it is determined that the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidifying cycle is not within the predetermined change rate range, determine the target discharge time of the electrode humidifier in the current humidifying cycle based on the relationship between the humidifying operation time change rate of the electrode humidifier and a time change rate range, the humidifying operation time change rate being the ratio of the humidifying operation time of the electrode humidifier before the discharge of the current humidifying cycle to the humidifying operation time before the discharge of the previous humidifying cycle; and a control unit configured to open the water discharge valve and control the electrode humidifier to discharge water until the target discharge time is reached.

[0015] According to still another aspect of the present application, a computer readable storage medium is provided, the computer readable storage medium comprising a stored program, wherein when the program is executed, the computer readable storage medium controls the device where the computer readable storage medium is located to perform any one of the control methods of the computer room air conditioner.

[0016] According to another aspect of the present application, a computer room air conditioner is provided, comprising one or more processors, a control device of the computer room air conditioner, and one or more programs, wherein the one or more programs are stored in the control device and configured to be executed by the one or more processors, and the one or more programs comprise a program for executing any one of the control methods of the computer room air conditioner.

[0017] By applying the technical solution of the present application, whether the ion concentration of the humidifying barrel corresponding to the evaporation stage of the current humidifying cycle is within a predetermined rate range is determined based on the relationship between the current rate of change of the evaporation stage of the current humidifying cycle and the current rate threshold. If the ion concentration of the humidifying barrel corresponding to the evaporation stage of the current humidifying cycle is not within the predetermined rate range, it indicates that the ion concentration of the humidifying barrel corresponding to the evaporation stage of the current humidifying cycle is high, and the ion concentration of the humidifying barrel needs to be reduced by draining and rewatering, so that the conductivity of the water in the humidifying barrel is maintained within a certain range, thereby automatically determining whether the humidifying barrel needs to be drained. Then, based on the relationship between the humidifying running time rate of change of the electrode humidifier and the time rate range, the target drainage time of the humidifying barrel in the current humidifying cycle is determined, so that the target drainage time is determined more flexibly and in real time, and the determined target drainage time is more reasonable. Finally, the electrode humidifier is controlled to drain until the target drainage time is reached, thereby automatically draining the electrode humidifier without relying on manual experience and manual drainage, thereby solving the problems of poor real-time and flexibility of the drainage interval of the humidifying barrel in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings accompanying the specification of the present application serve to provide a further understanding of the present application, the illustrative embodiments of the present application and their descriptions serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 A hardware structure block diagram of a mobile terminal for executing a control method of a computer room air conditioner according to an embodiment of the present application is shown;

[0020] Figure 2 A flowchart of a control method of a computer room air conditioner according to an embodiment of the present application is shown;

[0021] Figure 3 A flowchart of determining a current drop speed according to an embodiment of the present application is shown;

[0022] Figure 4 A flowchart of determining a target drainage time according to an embodiment of the present application is shown;

[0023] Figure 5 A structural diagram of a control device of a machine room air conditioner is shown.

[0024] In the above drawings, the following reference signs are used:

[0025] 102, processor; 104, memory; 106, transmission device; 108, input / output device. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0027] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0028] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0029] As introduced in the background, the setting of the drainage interval of the humidifying barrel in the prior art has poor real-time and flexibility. To solve the above problems, the embodiments of the present application provide a control method, a control device, a computer readable storage medium and a machine room air conditioner.

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0031] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking the running on a mobile terminal as an example, Figure 1 is a hardware structure block diagram of a mobile terminal of a control method of a machine room air conditioner according to an embodiment of the present application. As shown inFigure 1 As shown, a mobile terminal may include one or more ( Figure 1 Only one is shown in the diagram. A processor 102 (which may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.) and a memory 104 for storing data are also shown. The mobile terminal may further include a transmission device 106 for communication functions and an input / output device 108. Those skilled in the art will understand that... Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the mobile terminal. For example, the mobile terminal may also include components that are larger than... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown.

[0032] The memory 104 can be used to store computer programs, such as application software programs and modules, like the computer program corresponding to the control method for the computer room air conditioner in this embodiment of the invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, thereby implementing the method described. The memory 104 may include high-speed random access memory and non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory remotely located relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof. The transmission device 106 is used to receive or send data via a network. Specific examples of such networks may include wireless networks provided by the mobile terminal's communication provider. In one example, the transmission device 106 includes a network interface controller (NIC), which can be connected to other network devices via a base station to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0033] This embodiment provides a control method for a computer room air conditioner that runs on a mobile terminal, computer terminal, or similar computing device. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Also, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0034] Figure 2This is a flowchart of a control method for a computer room air conditioner according to an embodiment of this application. The computer room air conditioner includes an electrode humidifier, which includes a humidification tank, a water inlet valve, and a drain valve, as shown below. Figure 2 As shown, the control method includes the following steps:

[0035] Step S201: Based on the relationship between the current change rate and the current change rate threshold of the electrode humidifier in the evaporation stage of the current humidification cycle, determine whether the ion concentration change rate of the humidification tank in the evaporation stage of the current humidification cycle is within a predetermined change rate range.

[0036] In practical applications, a humidification cycle begins when the electrode humidifier's inlet valve opens and water begins to flow in, continuing until the inlet valve closes and water flow stops. Then, the water begins to boil, entering the evaporation stage, until the current value of the electrode humidifier is less than or equal to 0.95I. set In other words, the evaporation phase of a humidification cycle is the period from when the inlet valve is closed to when the inlet valve opens for the next humidification cycle. Wherein, I... set This is the humidification current setpoint. In practical applications, the corresponding humidification current setpoint I can be calculated based on the humidification capacity of the electrode humidifier. set。 In other words, different humidification capacities of the electrode humidifier correspond to different humidification current settings I. set This allows the humidification current to be controlled within the set value I. set This allows the electrode humidifier to achieve the set humidification level.

[0037] Additionally, when humidification begins for the first time, the number of humidification cycles is n=1. The water inlet valve of the electrode humidifier opens, and water begins to enter the humidification tank. As the water level in the humidification tank gradually rises, the current value of the electrode humidifier gradually increases. When the current value I of the electrode humidifier ≥ 1.1I... set Close the water inlet valve and start boiling water. The boiling water produces steam for humidification. As the steam evaporates, the water level in the humidification tank gradually decreases, and the current value of the electrode humidifier also decreases. When the current value I of the electrode humidifier is ≤ 0.95I... set Then, open the water inlet valve again to replenish water. At this point, the humidification cycle count n = n + 1. This cycle continues, continuously generating water vapor for humidification. The humidification current is controlled within the set value I. set At this time, the electrode humidifier generates the set humidification amount.

[0038] In step S201, this application does not limit the current change rate threshold and the size of the predetermined change rate range, which can be flexibly adjusted according to the actual application.

[0039] Step S202, in the case that the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidification cycle is not within the predetermined change rate range, determining the target drainage time of the electrode humidifier in the current humidification cycle based on the relationship between the humidification operation time change rate of the electrode humidifier and the time change rate range, the humidification operation time change rate P(m+1) being the humidification operation time t humid (m+1) and the humidification operation time t humid (m) of the previous humidification cycle, i.e. P(m+1) = t humid (m+1) / t humid (m); wherein m+1 is the total number of drainages up to the current humidification cycle, and m is the total number of drainages up to the previous humidification cycle.

[0040] In the step S202, if the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidification cycle is not within the predetermined change rate range, it indicates that the current ion concentration of the humidifying barrel is high, and it is necessary to stop humidification and to remove part of the water in the humidifying barrel to reduce the current ion concentration of the humidifying barrel.

[0041] In the step S202, the size of the time change rate range is not limited in the present application, and can be flexibly adjusted according to actual application conditions.

[0042] Step S203, opening the drainage valve and controlling the electrode humidifier to drain until the target drainage time is reached.

[0043] The control method of the machine room air conditioner determines whether the ion concentration of the humidifying barrel corresponding to the evaporation stage of the current humidifying cycle is within a predetermined variation rate range based on the relationship between the current variation rate of the evaporation stage of the current humidifying cycle and the current variation rate threshold. If the ion concentration of the humidifying barrel corresponding to the evaporation stage of the current humidifying cycle is not within the predetermined variation rate range, it indicates that the ion concentration of the humidifying barrel corresponding to the evaporation stage of the current humidifying cycle is high, and the ion concentration of the humidifying barrel needs to be reduced by draining and rewatering, so that the conductivity of the water in the humidifying barrel is maintained within a certain range, thereby automatically determining whether the humidifying barrel needs to be drained. Then, based on the relationship between the humidifying operation time variation rate of the electrode humidifier and the time variation rate range, the target drainage time of the humidifying barrel in the current humidifying cycle is determined, so that the target drainage time is determined more flexibly and in real time, and the determined target drainage time is more reasonable. Finally, the electrode humidifier is controlled to drain until the target drainage time is reached, thereby automatically draining the electrode humidifier without relying on manual experience and manual drainage, thereby solving the problems of poor real-time performance and flexibility of the drainage interval of the humidifying barrel in the prior art.

[0044] It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described herein can be executed in an order different from that shown herein.

[0045] In order to further accurately and reasonably determine the target drainage time, in the specific implementation process, the step S202 can be implemented by steps S2021, S2022 and S2023. Wherein,

[0046] Step S2021, in the case where the humidifying operation time variation rate is within the time variation rate range, that is, 1+ΔP≤P(m+1)≤1+ΔP, the drainage time of the electrode humidifier in the last humidifying cycle is determined as the target drainage time of the electrode humidifier in the current humidifying cycle, that is, t drain (m+1)=t drain (m), that is, t drain (m) is assigned to t drain (m+1). Wherein, P(m+1) is the humidifying operation time variation rate corresponding to the current humidifying cycle, t drain (m+1) is the target drainage time, t drain (m) is the drainage time of the last humidifying cycle, m+1 is the total number of drainages until the current humidifying cycle, and m is the total number of drainages until the last humidifying cycle;

[0047] Step S2022, in the case that the humidification operation time change rate is greater than the upper limit value of the time change rate range, i.e. P(m+1)>1+ΔP, the sum of the drainage time of the electrode humidifier in the last humidification cycle and the drainage time adjustment value is determined as the target drainage time of the electrode humidifier in the current humidification cycle, i.e. t drain (m+1)=t drain (m)+Δt, that is, t drain (m+1) is assigned the value of t drain (m)+Δt. drain

[0048] Step S2023, in the case that the humidification operation time change rate is less than the lower limit value of the time change rate range, i.e. P(m+1)<1-ΔP, the sum of the drainage time of the electrode humidifier in the last humidification cycle and the drainage time adjustment value is determined as the target drainage time of the electrode humidifier in the current humidification cycle, i.e. t drain (m+1)=t drain (m)-Δt, that is, t drain (m+1) is assigned the value of t drain (m)-Δt. Wherein, the upper limit value of the time change rate range is the sum of 1 and the time change rate adjustment value ΔP, and the lower limit value of the time change rate range is the difference between 1 and the time change rate adjustment value ΔP.

[0049] In actual application, the longer the humidification operation time of the electrode humidifier, the better the humidification effect. However, this will cause the ion concentration in the humidification barrel to be relatively large. The present application calculates K(n) in real time, and in the case that the current change rate exceeds the threshold K0, it is determined that the ion concentration change rate in the humidification barrel is not within the predetermined range, and the humidification barrel is drained, so as to control the ion concentration within a certain range. However, the longer the drainage time of the electrode humidifier, the more new water is supplemented, which can effectively reduce the ion concentration in the humidification barrel. If the humidification pause time of the electrode humidifier is relatively long, the humidification efficiency of the electrode humidifier will be reduced. Therefore, in the embodiment, the drainage time of the current humidification cycle is dynamically adjusted according to the humidification operation time, which can also balance the relationship between the humidification efficiency of the electrode humidifier and the service life of the humidification barrel.

[0050] In a specific embodiment, the drainage time t0 at the first humidification and first drainage can be set to 20 seconds. When the drainage time reaches 20 seconds, the drainage valve can be closed and the water inlet valve can be opened, the current cycle humidification frequency n=n+1, and the humidification operation time t humid (1) is recorded. The target drainage time of the current humidification cycle can be determined based on the scheme of the present application subsequently.​

[0051] In the step S2022, in the case that the humidification operation time change rate is greater than the upper limit value of the time change rate range, i.e. P(m+1)>1+ΔP, it indicates that the humidification operation time of the electrode humidifier is changed longer, and then the drainage time can be appropriately reduced, so that the time for the electrode humidifier to stop humidification is shorter, and the humidification efficiency of the electrode humidifier is further improved.

[0052] In the step S2023, in the case that the humidification operation time change rate is less than the lower limit value of the time change rate range, i.e. P(m+1)<1+ΔP, it indicates that the humidification operation time of the electrode humidifier is changed shorter, and then the drainage time can be appropriately increased, so that the water with high ion concentration in the humidification barrel is more discharged, thereby ensuring that the ion concentration in the humidification barrel after subsequent water replenishment is lower, and further ensuring that the ion concentration in the humidification barrel after water replenishment can be maintained within a certain range, and the conductivity of the water can be maintained within a certain range.

[0053] In actual application, the size of the time change rate adjustment value ΔP and the drainage time adjustment value Δt is not limited in the present application. That is, the time change rate adjustment value ΔP and the drainage time adjustment value Δt can be flexibly adjusted according to actual conditions. In a specific embodiment, the drainage time adjustment value Δt can be 5 seconds. The value range of the time change rate adjustment value ΔP can be 0.1-0.5. Specifically, the time change rate adjustment value ΔP can be 0.2.

[0054] In addition, the drainage time t drain (m+1) and t drain (m) in the present application can be 10-60 seconds. That is, the minimum value of the drainage time t drain (m+1) and t drain (m) in the present application can be 10 seconds, and the maximum value of the drainage time t drain (m+1) and t drain (m) in the present application can be 60 seconds. When the drainage time reaches the maximum value, it is no longer increased, and when the drainage time reaches the minimum value, it is no longer reduced.

[0055] In a specific embodiment, in the step S2022, in the case that the humidification operation time change rate is greater than the upper limit value of the time change rate range, i.e. P(m+1)>1+ΔP, the size of the drainage time adjustment value Δt can also be determined according to the size of the difference between P(m+1) and 1+ΔP. In this way, the drainage time adjustment value Δt is further determined more finely, and the target drainage time is further ensured to be more accurate.

[0056] In another specific embodiment, in the step S2023, in the case that the humidification operation time variation rate is less than the lower limit value of the time variation rate range, i.e. P(m+1) < 1+ΔP, the size of the drainage time adjustment value Δt can also be determined according to the size of the difference between P(m+1) and 1-ΔP. In this way, the drainage time adjustment value Δt is further determined more finely, and the target drainage time is further ensured to be determined more accurately.

[0057] The step S201 of the present application can be implemented by a step S2011, a step S2012 and a step S2013. In which,

[0058] In the step S2011, the current decrease speed v(n) of the electrode humidifier in the evaporation stage of the current humidification cycle is determined. i (n) and the initial current decrease speed v(1), to determine the current variation rate K(n) of the electrode humidifier in the current humidification cycle, i.e. K(n)=v i (n) / v(1). The initial current decrease speed v(1) is the current decrease speed of the electrode humidifier at the first time of water filling. i i i (n) and the initial current decrease speed v(1), to determine the current variation rate K(n) of the electrode humidifier in the current humidification cycle, i.e. K(n)=v i (n) / v(1). The initial current decrease speed v(1) is the current decrease speed of the electrode humidifier at the first time of water filling.

[0059] In the step S2012, in the case that the current variation rate of the electrode humidifier in the current humidification cycle is greater than the current variation rate threshold value, i.e. K(n)>K0, it is determined that the ion concentration variation rate of the humidification barrel in the evaporation stage of the current humidification cycle is not within the predetermined variation rate range.

[0060] In the step S2013, in the case that the current variation rate of the electrode humidifier in the current humidification cycle is less than or equal to the current variation rate threshold value, i.e. K(n)≤K0, it is determined that the ion concentration variation rate of the humidification barrel in the evaporation stage of the current humidification cycle is within the predetermined variation rate range.

[0061] In the above embodiment, by comparing the size relationship between the current variation rate of the electrode humidifier in the current humidification cycle and the current variation rate threshold value, it is determined whether the ion concentration variation rate of the humidification barrel in the evaporation stage of the current humidification cycle is within the predetermined variation rate range, so that it is achieved that whether the ion concentration variation rate of the humidification barrel in the evaporation stage of the current humidification cycle is within the predetermined variation rate range is determined more simply.

[0062] In one embodiment, the current variation rate threshold value K0 can have a value range of 1.5-5.0. Specifically, the current variation rate threshold value K0 can have a value of 2.0.

[0063] In the step S2012, in the case that the current rate of change of the electrode humidifier in the current humidification cycle is greater than the current rate of change threshold, i.e. K(n) > K0, it indicates that the ion concentration in the humidification tank in the evaporation stage of the current humidification cycle is increased, and the ion concentration rate of change exceeds the predetermined rate of change range, so it is necessary to reduce the ion concentration in the humidification tank by the way of re-watering through drainage.

[0064] In the step S2013, in the case that the current rate of change of the electrode humidifier in the current humidification cycle is less than or equal to the current rate of change threshold, i.e. K(n) ≤ K0, it indicates that the ion concentration rate of change in the humidification tank in the evaporation stage of the current humidification cycle is within the predetermined rate of change range, so the humidification can be continued.

[0065] In order to more simply determine the current rate of change of the current humidification cycle in the evaporation stage, in some embodiments, as shown in the step S2011, the process of determining the current rate of change of the electrode humidifier in the evaporation stage of the current humidification cycle includes: Figure 3

[0066] obtaining the current current value i(t) of the electrode humidifier in the current humidification cycle, and determining whether the current current value i(t) of the electrode humidifier in the current humidification cycle is less than or equal to the first predetermined current value Idown1, i.e. whether i(t) ≤ Idown1 exists;

[0067] In the case that the current current value i(t) of the electrode humidifier in the current humidification cycle is less than or equal to the first predetermined current value Idown1, i.e. i(t) ≤ Idown1, the current current value i(t) of the electrode humidifier in the current humidification cycle is determined as the first current calculation value Idown3, i.e. Idown3 = i(t), that is, the current current value i(t) of the current humidification cycle is assigned to Idown3, and the current value of the electrode humidifier after a predetermined time (i.e. 1s) is continued to be obtained;

[0068] Based on the first current calculation value Idown3 and the current value of the electrode humidifier after a predetermined time (i.e. 1s), the current rate of change v i (n) of the electrode humidifier in the evaporation stage is determined, where n is the total number of humidification cycles up to the current humidification cycle.

[0069] In an embodiment, as shown in the step S2011, the process of determining the current rate of change of the electrode humidifier in the evaporation stage of the current humidification cycle includes: Figure 3 ​As shown, based on the first current calculation value Idown3 and the current value of the electrode humidifier after a predetermined time (i.e. 1 second), the current drop speed v of the electrode humidifier in the evaporation stage is determined i (n), comprising:

[0070] It is determined whether the current value i(t+1) of the electrode humidifier after a predetermined time is less than or equal to a second predetermined current value Idown2, i.e. whether i(t+1)≤Idown2 exists;

[0071] In the case where the current value i(t+1) of the electrode humidifier after a predetermined time is less than or equal to the second predetermined current value Idown2, i.e. i(t+1)≤Idown2, the current value of the electrode humidifier after a predetermined time is determined as a second current calculation value Idown4, i.e. Idown4=i(t+1), that is, the current value i(t+1) at t+1 is assigned to Idown4;

[0072] The difference between the first current calculation value Idown3 and the second current calculation value Idown4 is determined to obtain a target difference, and the ratio of the target difference to the predetermined time (i.e. 1 second) is determined as the current drop speed v of the electrode humidifier in the evaporation stage of the current humidification cycle i (n).

[0073] That is, in the embodiment, the current drop speed v i (n) is determined by fixing the predetermined time, i.e. obtaining the current current value of the electrode humidifier before the predetermined time and obtaining the current current value of the electrode humidifier after the predetermined time. Since the predetermined time is fixed, the current drop speed v i (n) can be further determined more simply, and a more complex algorithm is not required.

[0074] In a specific embodiment, Idown1 is 1.05I set ; Idown2 is 0.95I set .

[0075] In addition, in the embodiment, in the case where i(t)≤Idown1, the current value i(t+1) of the electrode humidifier after a predetermined time is started to be obtained; when the predetermined time (i.e. 1 second) is reached and i(t+1)≤Idown2, the current drop speed v i(n). When Idown2 is 0.95Iset, it indicates that the humidifying barrel needs to start water replenishment at this time. The current drop speed v is determined at this stage i (n), so as to ensure the determined current drop speed v i (n) is more accurate.

[0076] In a specific embodiment of the present application, the current drop speed v i (n) can also be determined by the following steps: respectively acquiring the time t1 when the current value i(t) of the electrode humidifier is Idown1, and the time t2 when the current value i(t) of the electrode humidifier is Idown2; and then determining the current drop speed v i (n) = (Idown2-Idown1) / (t2-t1) through v i (n). That is, the current drop speed v i (n) can also be determined by fixing Idown1 and Idown2.

[0077] In the specific implementation process, the control method of the present application further includes steps S204 and S205. Among them,

[0078] Step S204, opening the water inlet valve to replenish water to the humidifying barrel until the current value of the electrode humidifier is greater than or equal to the third predetermined current value 1.1Iset;

[0079] Step S205, increasing the number of humidification cycles of the electrode humidifier by 1, and opening the water inlet valve of the electrode humidifier until the next opening of the water inlet valve is one humidification cycle.

[0080] In the embodiment, in the case where it is determined that the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidification cycle is within the predetermined change rate range, it indicates that the humidification can continue. After it is determined that the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidification cycle is within the predetermined change rate range, if the current current value of the humidifying barrel is less than 0.95I set , the water inlet valve can be opened to replenish water to the electrode humidifier, so that the electrode humidifier can realize continuous humidification, and further ensure that the humidification efficiency of the electrode humidifier is better.

[0081] In an embodiment, the control method of the present application further includes steps S206 and S207. Among them,

[0082] Step S206, determining the total number of continuous water discharges of the electrode humidifier;

[0083] Step S207, in the case that the total number of continuous drainage of the electrode humidifier reaches the maximum drainage number, simultaneously open the drainage valve and the water inlet valve until the predetermined drainage interval T is reached wash .

[0084] In the embodiment, in the case that the total number of continuous drainage of the electrode humidifier reaches the maximum drainage number, it indicates that the drainage cannot effectively reduce the ion concentration in the humidifying barrel, so it is necessary to empty the humidifying barrel after the drainage, that is, simultaneously open the drainage valve and the water inlet valve to empty the humidifying barrel.

[0085] In a specific embodiment of the present application, the total number of continuous drainage of the electrode humidifier M can be 2-6. Of course, the total number of continuous drainage of the electrode humidifier M is not limited to 2-6, but can be flexibly adjusted according to water quality and / or actual conditions.

[0086] In another specific embodiment, the predetermined drainage interval T wash can be 20-60 seconds. Of course, the predetermined drainage interval T wash is not limited to 20-60 seconds, but can be flexibly adjusted according to water quality and / or actual conditions.

[0087] In a specific embodiment of the present application, after opening the drainage valve and the water inlet valve to empty the humidifying barrel, the humidification can be restarted, that is, the water inlet is restarted, so that the humidification cycle is restarted.

[0088] In order to enable those skilled in the art to more clearly understand the technical solutions of the present application, the implementation process of the control method of the machine room air conditioner will be described in detail below in conjunction with specific embodiments.

[0089] The present embodiment relates to a specific control method of a machine room air conditioner, as shown in Figure 3 and Figure 4 , comprising the following steps:

[0090] Step S1: when the humidification is first started, the current value i(t) of the electrode humidifier is obtained, and t=0. When the current value i(t) of the electrode humidifier decreases to Idown1(1.05Iset), that is, i(t)≤Idown1, the first current calculation value Idown3=i(t). At the same time, t=0 is started.

[0091] Step S2: when the current value i(t+1) of the electrode humidifier after 1 second decreases to Idown2(0.95Iset), that is, i(t+1)≤Idown2, the second current calculation value Idown4=i(t+1) is obtained, and the current drop time is 1 second. Then the evaporation stage current drop speed vi = (Idown3 - Idown4) / 1.

[0092] Step S3: Based on K(n) = v i (n) / v i (1), determine the current rate of change of current K(n) of the evaporation phase of the current humidification cycle.

[0093] Step S4: When K(n) ≤ K0, it indicates that the rate of change of ion concentration of the evaporation phase of the current humidification cycle corresponding to the humidification barrel is within the predetermined range. Therefore, the humidification can be continued. And the water inlet valve can also be opened for water replenishment, so that the electrode humidifier can continue to humidify.

[0094] When K(n) > K0, it indicates that the rate of change of ion concentration of the evaporation phase of the current humidification cycle corresponding to the humidification barrel is not within the predetermined range. Then, part of the water in the humidification barrel needs to be drained and the humidification needs to be stopped, so as to reduce the ion concentration in the humidification barrel by draining and replenishing new water. Record the humidification running time t humid (1) after the first time the humidification is turned on.

[0095] The first drainage is performed according to the initial value of the drainage time t0 = 20 seconds, and the drainage valve is closed when the drainage time t0 is reached. Restart the humidification, open the water inlet valve, and the cycle number n = n + 1. Recalculate the humidification current change rate K(n) according to the process.

[0096] The K0 = 2.0, and its range can be 1.5-5.0.

[0097] Step S5: Based on P(m+1) = t humid (m+1) / t humid (m), determine the humidification running time change rate of the electrode humidifier. Wherein, m is the number of drainage, t humid (m) is the humidification running time before the mth drainage, t humid (m+1) is the humidification running time before the m+1th drainage.

[0098] Step S6: When 1-ΔP ≤ P(m+1) ≤ 1+ΔP, then t drain (m+1) = t drain (m), wherein t drain (m+1) is the target drainage time, t drain (m) is the drainage time of the last humidification cycle.

[0099] When P(m+1) > 1+ΔP, then t drain (m+1) = t drain (m)-△t.

[0100] When P(m+1) < 1-ΔP, then t drain (m+1) = t drain (m) +△t.

[0101] The ΔP = 0.2, and the value range thereof can be 0.1-0.5. The △t = 5 seconds, and the drainage time t drain The setting range is Tmin-Tmax, the minimum value Tmin = 10 seconds, and the maximum value Tmax = 60 seconds. The drainage time reaches the maximum value and no longer increases, and reaches the minimum value and no longer decreases.

[0102] Step S7: In the case where the total number of continuous drainages of the electrode humidifier reaches the maximum drainage number, it is indicated that the drainage cannot effectively reduce the ion concentration in the humidifying barrel, and then the humidifying barrel is emptied after the drainage ends. That is, the water inlet valve and the drainage valve are opened at the same time until the predetermined drainage interval is reached, that is, the humidifying barrel is emptied to remove the water and impurities in the barrel.

[0103] The predetermined drainage interval T wash The value range of the electrode humidifier can be 2-6.

[0104] Step S8: After the emptying ends, the water is recharged to start a new humidification cycle.

[0105] The embodiment of the application also provides a control device of a computer room air conditioner. It should be noted that the control device of the computer room air conditioner of the embodiment of the application can be used to execute the control method for the computer room air conditioner provided by the embodiment of the application. The device is used to realize the embodiment and the preferred embodiment, and will not be described here. As used below, the term "module" can be a combination of software and / or hardware that realizes a predetermined function. Although the device described in the following embodiment is preferably realized in software, the realization of hardware or a combination of software and hardware is also possible and is conceived.

[0106] The control device of the computer room air conditioner provided by the embodiment of the application is introduced below.

[0107] Figure 5 is a structural schematic diagram of the control device of the computer room air conditioner according to the embodiment of the application. The computer room air conditioner includes an electrode humidifier, and the electrode humidifier includes a humidifying barrel, a water inlet valve, and a drainage valve. As Figure 5 indicated, the control device includes:

[0108] A first determination unit 10 is configured to determine whether the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidification cycle is within a predetermined change rate range based on the size relationship between the current change rate of the electrode humidifier in the evaporation stage of the current humidification cycle and the current change rate threshold.

[0109] In practical applications, a humidification cycle begins when the electrode humidifier's inlet valve opens and water begins to flow in, continuing until the inlet valve closes and water flow stops. Then, the water begins to boil, entering the evaporation stage, until the current value of the electrode humidifier is less than or equal to 0.95I. set In other words, the evaporation phase of a humidification cycle is the period from when the inlet valve is closed to when the inlet valve opens for the next humidification cycle. Wherein, I... set This is the humidification current setpoint. In practical applications, the corresponding humidification current setpoint I can be calculated based on the humidification capacity of the electrode humidifier. set。 In other words, different humidification capacities of the electrode humidifier correspond to different humidification current settings I. set This allows the humidification current to be controlled within the set value I. set This allows the electrode humidifier to achieve the set humidification level.

[0110] Additionally, when humidification begins for the first time, the number of humidification cycles is n=1. The water inlet valve of the electrode humidifier opens, and water begins to enter the humidification tank. As the water level in the humidification tank gradually rises, the current value of the electrode humidifier gradually increases. When the current value I of the electrode humidifier ≥ 1.1I... set Close the water inlet valve and start boiling water. The boiling water produces steam for humidification. As the steam evaporates, the water level in the humidification tank gradually decreases, and the current value of the electrode humidifier also decreases. When the current value I of the electrode humidifier is ≤ 0.95I... set Then, open the water inlet valve again to replenish water. At this point, the humidification cycle count n = n + 1. This cycle continues, continuously generating water vapor for humidification. The humidification current is controlled within the set value I. set At this time, the electrode humidifier generates the set humidification amount.

[0111] In the first determining unit, this application does not limit the current change rate threshold and the size of the predetermined change rate range, which can be flexibly adjusted according to the actual application.

[0112] The second determining unit 20 is configured to, when determining that the rate of change of ion concentration in the evaporation phase of the humidification tank in the current humidification cycle is not within the predetermined rate of change range, determine the target drainage time of the electrode humidifier in the current humidification cycle based on the relationship between the rate of change of humidification operating time and the range of time change rate. The rate of change of humidification operating time P(m+1) is the humidification operating time t of the electrode humidifier before drainage in the current humidification cycle. humid (m+1) is the humidification running time t before the drainage of the previous humidification cycle.humid The ratio of (m) to t, i.e., P(m+1) = t humid (m+1) / t humid (m); where m+1 is the total number of drainages up to the current humidification cycle, and m is the total number of drainages up to the previous humidification cycle;

[0113] In the second determining unit, if the rate of change of ion concentration in the evaporation stage of the current humidification cycle is not within the predetermined rate of change range, it indicates that the current ion concentration in the humidification tank is high, and humidification needs to be stopped. By removing some of the water in the humidification tank, the current ion concentration in the humidification tank can be reduced.

[0114] In the second determining unit, this application does not limit the size of the time change rate range, and it can be flexibly adjusted according to the actual application situation.

[0115] Control unit 30 is used to open the drain valve and control the electrode humidifier to drain water until the target drainage time is reached.

[0116] In the control device of the computer room air conditioner, the first determining unit is used to determine whether the ion concentration of the humidifying tank corresponding to the evaporation stage of the current humidification cycle is within a predetermined rate of change range based on the relationship between the rate of change of current and the current rate of change threshold of the evaporation stage of the current humidification cycle. The second determining unit is used to determine whether the ion concentration of the humidifying tank corresponding to the evaporation stage of the current humidification cycle is high if the ion concentration of the humidifying tank is not within the predetermined rate of change range. It is necessary to reduce the ion concentration of the humidifying tank by draining and refilling water, so that the conductivity of the water in the humidifying tank is maintained within a certain range. This realizes the automatic determination of whether the humidifying tank needs to be drained. Then, based on the relationship between the rate of change of humidification operation time of the electrode humidifier and the time rate of change range, the target drainage time of the humidifying tank in the current humidification cycle is determined. This realizes a more flexible and real-time determination of the target drainage time, ensuring that the determined target drainage time is more reasonable. The control unit is used to control the electrode humidifier to drain water until the target drainage time is reached, thereby realizing automatic drainage of the electrode humidifier without relying on human experience or manual drainage. This solves the problem of poor real-time performance and flexibility in setting the drainage interval of the humidifier tank in the prior art.

[0117] To further determine the target drainage time more accurately and reasonably, in the specific implementation process, the second determining unit includes a first determining module, a second determining module, and a third determining module. Specifically, the first determining module is used to determine the drainage time of the electrode humidifier in the previous humidification cycle as the target drainage time of the electrode humidifier in the current humidification cycle, i.e., t, when the rate of change of the humidification operating time is within the range of the rate of change of time, i.e., 1+ΔP≤P(m+1)≤1+ΔP. drain (m+1)=t drain (m), that is, t drain (m) is assigned to t drain (m+1). Where P(m+1) is the rate of change of humidification operation time corresponding to the current humidification cycle, t drain (m+1) represents the target drainage time, t drain (m) represents the drainage time of the previous humidification cycle, m+1 represents the total number of drainages up to the current humidification cycle, and m represents the total number of drainages up to the previous humidification cycle; the second determining module is used to determine the drainage time t of the electrode humidifier in the previous humidification cycle when the rate of change of the humidification operation time is greater than the upper limit of the range of the rate of change of time, i.e., P(m+1)>1+ΔP. drain The difference between (m) and the drainage time adjustment value Δt is determined as the target drainage time of the electrode humidifier in the current humidification cycle, i.e., t. drain (m+1)=t drain (m)-Δt, that is, t drain (m)-Δt is assigned to t drain (m+1); The third determining module is used to determine the sum of the drainage time of the electrode humidifier in the previous humidification cycle and the drainage time adjustment value as the target drainage time of the electrode humidifier in the current humidification cycle, i.e., t, when the rate of change of the humidification operation time is less than the lower limit of the range of the rate of change of time, i.e., P(m+1)<1+ΔP. drain (m+1)=t drain (m)+Δt, that is, t drain (m)+Δt is assigned to t drain (m+1). Wherein, the upper limit of the time change rate range is the sum of 1 and the time change rate adjustment value ΔP, and the lower limit of the time change rate range is the difference between 1 and the time change rate adjustment value ΔP.

[0118] In actual application, the longer the humidification running time of the electrode humidifier is, the better the humidification effect is. However, this will cause the ion concentration in the humidification barrel to be relatively large. The application calculates K(n) in real time. When the current change rate threshold K0 is exceeded, it is determined that the ion concentration change rate in the humidification barrel is not within the predetermined range, and the humidification barrel is drained, so as to control the ion concentration within a certain range. However, the longer the drainage time of the electrode humidifier is, the more new water is supplemented, which can effectively reduce the ion concentration in the humidification barrel. If the humidification pause time of the electrode humidifier is relatively long, the humidification efficiency of the electrode humidifier is reduced. Therefore, in the embodiment, the drainage time of the current humidification cycle is dynamically adjusted according to the humidification running time, and the balance between the humidification efficiency of the electrode humidifier and the service life of the humidification barrel can also be considered.

[0119] In a specific embodiment, the drainage time t0 at the first humidification and the first drainage can be set to 20 seconds. When the drainage time reaches 20 seconds, the drainage valve can be closed and the water inlet valve can be opened, the current humidification cycle number n = n + 1, and the humidification running time t humid (1) can be recorded. Subsequently, the target drainage time of the current humidification cycle can be determined based on the scheme of the application.

[0120] In the second determination module, when the humidification running time change rate is greater than the upper limit value of the time change rate range, that is, P(m+1)>1+ΔP, it indicates that the humidification running time of the electrode humidifier is relatively long, and the drainage time can be appropriately reduced, so that the time for the electrode humidifier to stop humidification is relatively short, and the humidification efficiency of the electrode humidifier is improved.

[0121] In the third determination module, when the humidification running time change rate is less than the lower limit value of the time change rate range, that is, P(m+1)<1+ΔP, it indicates that the humidification running time of the electrode humidifier is relatively short, and the drainage time can be appropriately increased, so that the water with high ion concentration in the humidification barrel is removed more, so as to ensure that the ion concentration in the humidification barrel is relatively low after subsequent water replenishment, and the ion concentration in the humidification barrel after water replenishment can be maintained within a certain range, and the electrical conductivity of the water can be maintained within a certain range.

[0122] In actual application, the application does not limit the size of the time change rate adjustment value ΔP and the drainage time adjustment value Δt. That is, the time change rate adjustment value ΔP and the drainage time adjustment value Δt can be flexibly adjusted according to actual conditions. In a specific embodiment, the drainage time adjustment value Δt can be 5 seconds. The value range of the time change rate adjustment value ΔP can be 0.1-0.5. Specifically, the time change rate adjustment value ΔP can be 0.2.

[0123] In addition, the drainage time t drain (m+1) and t drain (m) in the present application can be 10 seconds to 60 seconds. That is, the minimum value of the drainage time t drain (m+1) and t drain (m) in the present application can be 10 seconds, and the maximum value of the drainage time t drain (m+1) and t drain (m) in the present application can be 60 seconds. When the drainage time reaches the maximum value, it will not be increased, and when the drainage time reaches the minimum value, it will not be decreased.

[0124] In a specific embodiment, in the second determining module, when the humidification operation time change rate is greater than the upper limit value of the time change rate range, that is, P(m+1)>1+ΔP, the size of the drainage time adjustment value Δt can also be determined according to the size of the difference between P(m+1) and 1+ΔP. In this way, the drainage time adjustment value Δt is further determined more finely, and the determination of the target drainage time is further ensured to be more accurate.

[0125] In another specific embodiment, in the third determining module, when the humidification operation time change rate is less than the lower limit value of the time change rate range, that is, P(m+1)<1-ΔP, the size of the drainage time adjustment value Δt can also be determined according to the size of the difference between P(m+1) and 1-ΔP. In this way, the drainage time adjustment value Δt is further determined more finely, and the determination of the target drainage time is further ensured to be more accurate.

[0126] The first determining unit of the present application includes a fourth determining module, a fifth determining module and a sixth determining module. Among them, the fourth determining module is used to determine the current change rate K(n) of the electrode humidifier in the current humidification cycle as the ratio of the current drop speed v i (n) of the electrode humidifier in the evaporation stage of the current humidification cycle to the initial current drop speed v i (1), that is, K(n)=v i (n) / v i (1), the initial current drop rate v i(1) is the current drop speed of the electrode humidifier at the first time of water filling; the fifth determining module is configured to determine that the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidification cycle is not within the predetermined change rate range when the electrode humidifier is in the case that the current change rate in the current humidification cycle is greater than the current change rate threshold, i.e. K(n)>K0; and the sixth determining module is configured to determine that the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidification cycle is within the predetermined change rate range when the electrode humidifier is in the case that the current change rate in the current humidification cycle is less than or equal to the current change rate threshold, i.e. K(n)<=K0.

[0127] In the embodiment, by comparing the current change rate of the electrode humidifier in the current humidification cycle with the current change rate threshold, it is determined whether the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidification cycle is within the predetermined change rate range, so that it is achieved that whether the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidification cycle is within the predetermined change rate range is determined more simply.

[0128] In an embodiment, the current change rate threshold K0 can have a value range of 1.5-5.0. Specifically, the current change rate threshold K0 can have a value of 2.0.

[0129] In the fifth determining module, when the electrode humidifier is in the case that the current change rate in the current humidification cycle is greater than the current change rate threshold, i.e. K(n)>K0, it indicates that the ion concentration of the humidifying barrel in the evaporation stage of the current humidification cycle is increased, and the ion concentration change rate exceeds the predetermined change rate range, so that the ion concentration in the humidifying barrel needs to be reduced by the way of draining and re-filling.

[0130] In the sixth determining module, when the electrode humidifier is in the case that the current change rate in the current humidification cycle is less than or equal to the current change rate threshold, i.e. K(n)<=K0, it indicates that the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidification cycle is within the predetermined change rate range, so that the humidification can be continued.

[0131] In order to more simply determine the current drop speed of the evaporation stage of the current humidification cycle, in some embodiments, as shown in Figure 3As shown, the fourth determining module comprises an obtaining sub-module, a first determining sub-module and a second determining sub-module. The obtaining sub-module is configured to obtain the current value i(t) of the current of the electrode humidifier in the current humidification cycle, and determine whether the current value i(t) of the current of the electrode humidifier in the current humidification cycle is less than or equal to a first predetermined current value Idown1, i.e. whether i(t)≤Idown1 exists. The first determining sub-module is configured to, in the case that the current value i(t) of the current of the electrode humidifier in the current humidification cycle is less than or equal to the first predetermined current value Idown1, i.e. in the case that i(t)≤Idown1, determine the current value i(t) of the current of the electrode humidifier in the current humidification cycle as a first current calculation value Idown3, i.e. Idown3=i(t), that is, assign the current value i(t) of the current in the current humidification cycle to Idown3, and continue to obtain the current value of the current of the electrode humidifier after a predetermined time (i.e. 1 second). The second determining sub-module is configured to determine the current drop speed v i (n) of the electrode humidifier in the evaporation stage based on the first current calculation value Idown3 and the current value of the current of the electrode humidifier after the predetermined time (i.e. 1 second), wherein n is the total number of humidification cycles up to the current humidification cycle.

[0132] In an embodiment, as shown in Figure 3 the second determining module comprises a third determining sub-module, a fourth determining sub-module and a fifth determining sub-module. The third determining sub-module is configured to determine whether the current value i(t+1) of the current of the electrode humidifier after the predetermined time (i.e. 1 second) is less than or equal to a second predetermined current value Idown2, i.e. whether i(t+1)≤Idown2 exists. The fourth determining sub-module is configured to, in the case that the current value i(t+1) of the current of the electrode humidifier after the predetermined time is less than or equal to the second predetermined current value Idown2, i.e. in the case that i(t+1)≤Idown2, determine the current value after the predetermined time as a second current calculation value Idown4, i.e. Idown4=i(t+1), that is, assign the current value i(t+1) at time t+1 to Idown4. The fifth determining sub-module is configured to determine the difference between the first current calculation value Idown3 and the second current calculation value Idown4 to obtain a target difference, and determine the ratio of the target difference to the predetermined time (i.e. 1 second) as the current drop speed v i (n) of the electrode humidifier in the evaporation stage in the current humidification cycle.

[0133] That is, in the embodiment, the current drop speed vi (n), i.e. to obtain the current current value of the electrode humidifier before the predetermined time, and to obtain the current current value of the electrode humidifier after the predetermined time. Since the predetermined time is fixed, the current drop speed v i (n) can be further determined more simply without a more complex algorithm.

[0134] In a specific embodiment, Idown1 is 1.05I set ; and Idown2 is 0.95I set .

[0135] In addition, in the embodiment, when i(t)≤Idown1, the current value i(t+1) of the electrode humidifier after the predetermined time is obtained; when the predetermined time (i.e. 1 second) is reached and i(t+1)≤Idown2, the current drop speed v i (n) is determined by the first current calculation value Idown3 and the second current calculation value Idown4. When Idown2 is 0.95Iset, it indicates that the humidifying barrel needs to start to be replenished with water at this time. The current drop speed v i (n) is determined at this stage, so as to ensure that the determined current drop speed v i (n) is more accurate.

[0136] In a specific embodiment of the application, the current drop speed v i (n) can also be determined by the following steps: obtaining the time t1 when the current current value i(t) of the electrode humidifier is Idown1, and obtaining the time t2 when the current current value i(t) of the electrode humidifier is Idown2; and then obtaining the current drop speed v i (n) by v i (n)=(Idown2-Idown1) / (t2-t1). That is, the current drop speed v i (n) can also be determined by fixing Idown1 and Idown2.

[0137] In the specific implementation process, the control device further comprises a first execution unit and a second execution unit. The first execution unit is configured to open the water inlet valve to replenish the humidifying barrel with water until the current value of the electrode humidifier is greater than or equal to a third predetermined current value 1.1Iset; and the second execution unit is configured to increase the number of humidifying cycles of the electrode humidifier by 1, and the water inlet valve of the electrode humidifier is opened until the next opening of the water inlet valve is one humidifying cycle.

[0138] In the embodiment, in the case that the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidification cycle is determined to be within the predetermined change rate range, it is indicated that the humidification can be continued. After the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidification cycle is determined to be within the predetermined change rate range, if the current current value of the humidifying barrel is less than 0.95I set , the water inlet valve can be opened to replenish water to the electrode humidifier, so that the electrode humidifier can realize continuous humidification, and further ensure that the humidification efficiency of the electrode humidifier is better.

[0139] In an embodiment, the control device of the application further comprises a third determination unit and a third execution unit. The third determination unit is configured to determine the total number of continuous water discharges of the electrode humidifier; and the third execution unit is configured to open the water discharge valve and the water inlet valve at the same time in the case that the total number of continuous water discharges of the electrode humidifier reaches the maximum water discharge number, until a predetermined water discharge interval T wash is reached.

[0140] In the embodiment, in the case that the total number M of continuous water discharges of the electrode humidifier reaches the maximum water discharge number, it is indicated that the water discharge cannot effectively reduce the ion concentration in the humidifying barrel, so it is necessary to empty the humidifying barrel after the water discharge is completed, that is, to open the water discharge valve and the water inlet valve at the same time to empty the humidifying barrel.

[0141] In a specific embodiment of the application, the total number M of continuous water discharges of the electrode humidifier can be 2-6. Of course, the total number M of continuous water discharges of the electrode humidifier is not limited to 2-6, and can be flexibly adjusted according to the water quality and / or actual situation.

[0142] In another specific embodiment, the predetermined water discharge interval T wash may be 20-60 seconds. Of course, the value of the predetermined water discharge interval T wash is not limited to 20-60 seconds, and can be flexibly adjusted according to the water quality and / or actual situation.

[0143] In a specific embodiment of the application, after the water discharge valve and the water inlet valve are opened to empty the humidifying barrel, the humidification can be restarted, that is, the water inlet is restarted, so that the humidification cycle is restarted.

[0144] The control device of the machine room air conditioner comprises a processor and a memory, the first determination unit, the second determination unit, and the control unit are all stored in the memory as program units, and the corresponding functions are realized by the processor executing the program units stored in the memory. The modules are located in the same processor; or the modules are located in different processors in any combination.

[0145] The processor comprises a core, and the core retrieves corresponding program units in the memory.

[0146] The memory can include non-permanent memory in a computer readable medium, random access memory (RAM) and / or non-volatile memory such as read-only memory (ROM) or flash memory (flash RAM), and the memory comprises at least one memory chip.

[0147] The embodiment of the present application provides a computer readable storage medium, which comprises a stored program, wherein the computer readable storage medium controls a device in which the computer readable storage medium is located to execute the control method of the computer room air conditioner when the program runs.

[0148] Specifically, the control method of the computer room air conditioner comprises:

[0149] In step S201, whether the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidifying cycle is within a predetermined change rate range is determined based on the size relationship between the current change rate of the electrode humidifier in the evaporation stage of the current humidifying cycle and the current change rate threshold.

[0150] In step S202, in the case that the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidifying cycle is determined to be not within the predetermined change rate range, the target drainage time of the electrode humidifier in the current humidifying cycle is determined based on the relationship between the humidifying operation time change rate of the electrode humidifier and the time change rate range, and the humidifying operation time change rate is the ratio of the humidifying operation time of the electrode humidifier before drainage in the current humidifying cycle to the humidifying operation time before drainage in the last humidifying cycle.

[0151] In step S203, the drainage valve is opened, and the electrode humidifier is controlled to drain until the target drainage time is reached.

[0152] The embodiment of the present application provides an electronic device, which comprises a memory and a processor, the memory stores a computer program, and the processor is configured to execute the control method of the computer room air conditioner by using the computer program.

[0153] Specifically, the control method of the computer room air conditioner comprises:

[0154] Step S201, determining whether the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidifying cycle is within a predetermined change rate range based on the size relationship between the current change rate of the electrode humidifier in the evaporation stage of the current humidifying cycle and the current change rate threshold value;

[0155] Step S202, in the case where it is determined that the ion concentration change rate of the humidifying barrel in the evaporation stage of the current humidifying cycle is not within the predetermined change rate range, determining the target drainage time of the electrode humidifier in the current humidifying cycle based on the relationship between the humidifying operation time change rate of the electrode humidifier and the time change rate range, the humidifying operation time change rate being the ratio of the humidifying operation time of the electrode humidifier before drainage in the current humidifying cycle to the humidifying operation time before drainage in the last humidifying cycle;

[0156] Step S203, opening the drainage valve and controlling the electrode humidifier to perform drainage until the target drainage time is reached.

[0157] In an exemplary embodiment of the present application, a computer room air conditioner is also provided. The computer room air conditioner comprises one or more processors, a control device of the computer room air conditioner, and one or more programs, wherein the one or more programs are stored in the control device and configured to be executed by the one or more processors, and the one or more programs comprise the control method of any one of the computer room air conditioners.

[0158] The computer room air conditioner comprises a control device of the computer room air conditioner. The control device is used to execute the control method of any one of the computer room air conditioners. Based on the relationship between the current change rate of the electrode humidifier in the evaporation stage of the current humidifying cycle and the current change rate threshold value, it is determined whether the ion concentration of the humidifying barrel corresponding to the evaporation stage of the current humidifying cycle is within a predetermined change rate range. If the ion concentration of the humidifying barrel corresponding to the evaporation stage of the current humidifying cycle is not within the predetermined change rate range, it indicates that the ion concentration of the humidifying barrel corresponding to the evaporation stage of the current humidifying cycle is high, and the ion concentration of the humidifying barrel needs to be reduced by the way of drainage and rewatering, so as to maintain the conductivity of the water in the humidifying barrel within a certain range, thereby realizing automatic determination of whether the humidifying barrel needs to be drained. Then, based on the relationship between the humidifying operation time change rate of the electrode humidifier and the time change rate range, the target drainage time of the humidifying barrel in the current humidifying cycle is determined, thereby realizing relatively flexible and real-time determination of the target drainage time and ensuring that the determined target drainage time is reasonable. Finally, the electrode humidifier is controlled to perform drainage until the target drainage time is reached, thereby realizing automatic drainage of the electrode humidifier without relying on manual experience and manual drainage, and thereby solving the problems of poor real-time performance and flexibility in setting the drainage interval of the humidifying barrel in the prior art.

[0159] In particular, the air conditioning machine room can be applied to a data center machine room.

[0160] The device comprises a processor, a memory, and a program stored in the memory and executable on the processor, and the processor implements at least the following steps when executing the program:

[0161] In step S201, whether the ion concentration change rate of the humidification barrel in the evaporation stage of the current humidification cycle is within a predetermined change rate range is determined based on the size relationship between the current change rate of the electrode humidifier in the evaporation stage of the current humidification cycle and the current change rate threshold value.

[0162] In step S202, the target drainage time of the electrode humidifier in the current humidification cycle is determined based on the relationship between the humidification operation time change rate of the electrode humidifier and the time change rate range in the case where it is determined that the ion concentration change rate of the humidification barrel in the evaporation stage of the current humidification cycle is not within the predetermined change rate range, and the humidification operation time change rate is the ratio of the humidification operation time of the electrode humidifier before drainage in the current humidification cycle to the humidification operation time before drainage in the last humidification cycle.

[0163] In step S203, the drainage valve is opened, and the electrode humidifier is controlled to drain until the target drainage time is reached.

[0164] The device herein can be a server, a PC, a PAD, a mobile phone, etc.

[0165] The application also provides a computer program product adapted to execute the program initialized with at least the following method steps when executed on a data processing device:

[0166] In step S201, whether the ion concentration change rate of the humidification barrel in the evaporation stage of the current humidification cycle is within a predetermined change rate range is determined based on the size relationship between the current change rate of the electrode humidifier in the evaporation stage of the current humidification cycle and the current change rate threshold value.

[0167] In step S202, the target drainage time of the electrode humidifier in the current humidification cycle is determined based on the relationship between the humidification operation time change rate of the electrode humidifier and the time change rate range in the case where it is determined that the ion concentration change rate of the humidification barrel in the evaporation stage of the current humidification cycle is not within the predetermined change rate range, and the humidification operation time change rate is the ratio of the humidification operation time of the electrode humidifier before drainage in the current humidification cycle to the humidification operation time before drainage in the last humidification cycle.

[0168] Step S203, open the drain valve, and control the electrode humidifier to drain, until the target drain time is reached.

[0169] It is apparent that a person skilled in the art should understand that the modules or steps of the present application described above can be realized by general computing devices, which can be centralized on a single computing device, or distributed on a network composed of multiple computing devices, and can be realized by program codes executable by the computing devices, so that they can be stored in storage devices and executed by the computing devices, and in some cases, the steps shown or described can be executed in different order, or they can be respectively manufactured into individual integrated circuit modules, or multiple modules or steps can be manufactured into a single integrated circuit module. Thus, the present application is not limited to any particular combination of hardware and software.

[0170] 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 an entirely hardware embodiment, an entirely 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 storage, CD-ROMs, optical storage devices, etc.) containing computer-usable program code.

[0171] The present application is described with reference to flowcharts and / or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, as well as 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 a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing apparatus to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing apparatus produce a device that implements the functions specified in the flowcharts and / or block diagrams. Figure 1 The functions specified in a flow or multiple flows and / or blocks Figure 1 The functions specified in a flow or multiple flows and / or blocks

[0172] These computer program instructions can also be stored in a computer-readable memory that can direct the computer or other programmable data processing apparatus to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including instruction devices that implement the functions specified in the flowcharts and / or block diagrams. Figure 1 The functions specified in a flow or multiple flows and / or blocks Figure 1 The functions specified in a flow or multiple flows and / or blocks

[0173] These computer program instructions can also be loaded into a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 Figure 1

[0174] In one typical configuration, the computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0175] The memory can include non-persistent memory and / or volatile memory, such as random access memory (RAM) about which the processor can execute instructions. The memory can also include non-volatile memory, such as read only memory (ROM), electrically programmable read only memory (EPROM), electrically erasable programmable read only memory (EEPROM), programmable read only memory (PROM), or flash memory, for example. Memory is an example of computer readable media.

[0176] Computer readable media includes permanent and non-permanent, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory (ROM), electrically programmable read only memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital versatile disc (DVD), or other optical storage, magnetic cassette, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information accessible to a computing device. According to the definition herein, computer readable media does not include transitory media such as modulated data signals and carrier waves.

[0177] It should also be noted that the terms "comprising", "containing", or any other variant thereof are intended to encompass a non-exclusive inclusion, such that a process, method, article or apparatus that comprises a list of elements does not include only those elements recited, but can also include other elements not expressly listed or inherent to such process, method, article or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus that includes the element.

[0178] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects: ​​

[0179] 1)、The control method of the machine room air conditioner of the application, based on the relationship between the current change rate of the current evaporation stage of the current humidification cycle and the current change rate threshold, determines whether the ion concentration of the humidification barrel corresponding to the current evaporation stage of the current humidification cycle is within the predetermined change rate range; if the ion concentration of the humidification barrel corresponding to the current evaporation stage of the current humidification cycle is not within the predetermined change rate range, it indicates that the ion concentration of the humidification barrel corresponding to the current evaporation stage of the current humidification cycle is high, and the ion concentration of the humidification barrel needs to be reduced by draining and rewatering, so that the conductivity of the water in the humidification barrel is maintained within a certain range, which realizes automatic determination of whether the humidification barrel needs to be drained; based on the relationship between the humidification running time change rate of the electrode humidifier and the time change rate range, the target drainage time of the humidification barrel in the current humidification cycle is determined, which realizes flexible and real-time determination of the target drainage time and ensures that the determined target drainage time is reasonable. Finally, control the electrode humidifier to drain until the target drainage time is reached, thereby realizing automatic drainage of the electrode humidifier without relying on manual experience and manual drainage, thereby solving the problems of poor real-time and flexibility of the drainage interval of the humidification barrel in the prior art.

[0180] 2)、The control device of the machine room air conditioner of the application, the first determination unit is used to determine whether the ion concentration of the humidification barrel corresponding to the current evaporation stage of the current humidification cycle is within the predetermined change rate range based on the relationship between the current change rate of the current evaporation stage of the current humidification cycle and the current change rate threshold; the second determination unit is used to determine that the ion concentration of the humidification barrel corresponding to the current evaporation stage of the current humidification cycle is high if the ion concentration of the humidification barrel corresponding to the current evaporation stage of the current humidification cycle is not within the predetermined change rate range, and the ion concentration of the humidification barrel needs to be reduced by draining and rewatering, so that the conductivity of the water in the humidification barrel is maintained within a certain range, which realizes automatic determination of whether the humidification barrel needs to be drained; based on the relationship between the humidification running time change rate of the electrode humidifier and the time change rate range, the target drainage time of the humidification barrel in the current humidification cycle is determined, which realizes flexible and real-time determination of the target drainage time and ensures that the determined target drainage time is reasonable. The control unit is used to control the electrode humidifier to drain until the target drainage time is reached, thereby realizing automatic drainage of the electrode humidifier without relying on manual experience and manual drainage, thereby solving the problems of poor real-time and flexibility of the drainage interval of the humidification barrel in the prior art.

[0181] 3), The machine room air conditioner of the application comprises a control device of the machine room air conditioner. The control device is used for executing any one of the control methods of the machine room air conditioner. Based on the relationship between the current change rate of the evaporation stage of the current humidification cycle and the current change rate threshold, it is determined whether the ion concentration of the humidification barrel corresponding to the evaporation stage of the current humidification cycle is within the predetermined change rate range; if the ion concentration of the humidification barrel corresponding to the evaporation stage of the current humidification cycle is not within the predetermined change rate range, it indicates that the ion concentration of the humidification barrel corresponding to the evaporation stage of the current humidification cycle is high, and the ion concentration of the humidification barrel needs to be reduced by draining and rewatering, so that the conductivity of the water in the humidification barrel is maintained within a certain range, thereby realizing automatic determination of whether the humidification barrel needs to be drained; and based on the relationship between the humidification running time change rate of the electrode humidifier and the time change rate range, the target drainage time of the humidification barrel in the current humidification cycle is determined, so that the target drainage time is determined more flexibly and more timely, and the determined target drainage time is more reasonable. Finally, the electrode humidifier is controlled to drain until the target drainage time is reached, thereby realizing automatic drainage of the electrode humidifier without relying on manual experience and manual drainage, and thereby solving the problems of poor real-time and flexibility of the drainage interval of the humidification barrel in the prior art.

[0182] The above only describes the preferred embodiments of the application and is not intended to limit the application. Those skilled in the art can make various modifications and changes to the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the protection scope of the application.

Claims

1. A control method for a computer room air conditioner, wherein the computer room air conditioner includes an electrode humidifier, the electrode humidifier including a humidification tank, a water inlet valve, and a drain valve, characterized in that, The control method includes: Based on the relationship between the current change rate and the current change rate threshold of the electrode humidifier in the evaporation stage of the current humidification cycle, it is determined whether the ion concentration change rate of the humidification tank in the evaporation stage of the current humidification cycle is within a predetermined change rate range. If it is determined that the rate of change of ion concentration in the evaporation phase of the current humidification cycle is not within the predetermined rate of change range, the target drainage time of the electrode humidifier in the current humidification cycle is determined based on the relationship between the rate of change of humidification operation time of the electrode humidifier and the range of time change rate. The rate of change of humidification operation time is the ratio of the humidification operation time of the electrode humidifier before drainage in the current humidification cycle to the humidification operation time before drainage in the previous humidification cycle. Open the drain valve and control the electrode humidifier to drain water until the target drainage time is reached; Based on the relationship between the humidification operation time change rate and the time change rate range of the electrode humidifier, the target drainage time of the electrode humidifier in the current humidification cycle is determined, including: when the humidification operation time change rate is within the time change rate range, determining the drainage time of the electrode humidifier in the previous humidification cycle as the target drainage time of the electrode humidifier in the current humidification cycle; when the humidification operation time change rate is greater than the upper limit of the time change rate range, determining the difference between the drainage time of the electrode humidifier in the previous humidification cycle and the drainage time adjustment value as the target drainage time of the electrode humidifier in the current humidification cycle; when the humidification operation time change rate is less than the lower limit of the time change rate range, determining the sum of the drainage time of the electrode humidifier in the previous humidification cycle and the drainage time adjustment value as the target drainage time of the electrode humidifier in the current humidification cycle, wherein the upper limit of the time change rate range is the sum of 1 and the time change rate adjustment value, and the lower limit of the time change rate range is the difference between 1 and the time change rate adjustment value.

2. The control method according to claim 1, characterized in that, Based on the relationship between the current change rate and the current change rate threshold of the electrode humidifier during the evaporation phase of the current humidification cycle, determining whether the ion concentration change rate of the humidification tank during the evaporation phase of the current humidification cycle is within a predetermined change rate range includes: The ratio of the rate of current decrease of the electrode humidifier during the evaporation phase of the current humidification cycle to the initial rate of current decrease is determined as the rate of change of current of the electrode humidifier in the current humidification cycle, wherein the initial rate of current decrease is the rate of current decrease of the electrode humidifier when water is first introduced. If the rate of change of current of the electrode humidifier in the current humidification cycle is greater than the rate of change of current threshold, it is determined that the rate of change of ion concentration of the humidification tank in the evaporation phase of the current humidification cycle is not within the predetermined rate of change range. If the rate of change of current of the electrode humidifier in the current humidification cycle is less than or equal to the rate of change of current threshold, the rate of change of ion concentration of the humidification tank in the evaporation phase of the current humidification cycle is determined to be within the predetermined rate of change range.

3. The control method according to claim 2, characterized in that, The process of determining the rate of current decrease of the electrode humidifier during the evaporation phase of the current humidification cycle includes: Obtain the current current value of the electrode humidifier in the current humidification cycle, and determine whether the current current value of the electrode humidifier in the current humidification cycle is less than or equal to a first predetermined current value; If the current current value of the electrode humidifier in the current humidification cycle is less than or equal to the first predetermined current value, the current current value of the electrode humidifier in the current humidification cycle is determined as the first current calculation value, and the current value of the electrode humidifier after a predetermined time is obtained. Based on the first current calculation value and the current value of the electrode humidifier after a predetermined time, the current decrease rate of the electrode humidifier during the evaporation stage is determined.

4. The control method according to claim 3, characterized in that, Based on the first calculated current value and the current value of the electrode humidifier after a predetermined time, the current decrease rate of the electrode humidifier during the evaporation stage is determined, including: Determine whether the current value of the electrode humidifier after a predetermined time is less than or equal to a second predetermined current value; If the current value of the electrode humidifier after a predetermined time is less than or equal to the second predetermined current value, the current value of the electrode humidifier after a predetermined time is determined as the second current calculation value. The difference between the first calculated current value and the second calculated current value is determined to obtain a target difference value, and the ratio of the target difference value to the predetermined time is determined as the current decrease rate of the electrode humidifier in the evaporation phase of the current humidification cycle.

5. The control method according to claim 2, characterized in that, After determining that the rate of change of ion concentration in the evaporation phase of the current humidification cycle of the humidifier is within a predetermined rate of change when the rate of change of current in the electrode humidifier during the current humidification cycle is less than or equal to the rate of change threshold, the control method further includes: Open the water inlet valve to replenish the humidification tank until the current value of the electrode humidifier is greater than or equal to the third predetermined current value; The number of humidification cycles of the electrode humidifier is increased by 1, and the water inlet valve of the electrode humidifier is opened until the next time the water inlet valve is opened, which constitutes one humidification cycle.

6. The control method according to any one of claims 1 to 5, characterized in that, The control method further includes: Determine the total number of times the electrode humidifier continuously drains water; When the total number of continuous drainages by the electrode humidifier reaches the maximum number of drainages, the drain valve and the inlet valve are opened simultaneously until the predetermined drainage interval is reached.

7. A control device for a computer room air conditioner, the computer room air conditioner including an electrode humidifier, the electrode humidifier including a humidification tank, a water inlet valve, and a drain valve, characterized in that, The control device includes: The first determining unit is used to determine whether the ion concentration change rate of the humidifying tank in the evaporation stage of the current humidification cycle is within a predetermined change rate range based on the relationship between the current change rate of the electrode humidifier and the current change rate threshold in the evaporation stage of the current humidification cycle. The second determining unit is configured to, when determining that the rate of change of ion concentration of the humidifying tank in the evaporation phase of the current humidification cycle is not within the predetermined rate of change range, determine the target drainage time of the electrode humidifier in the current humidification cycle based on the relationship between the rate of change of humidification operating time of the electrode humidifier and the range of time change rate, wherein the rate of change of humidification operating time is the ratio of the humidification operating time of the electrode humidifier before drainage in the current humidification cycle to the humidification operating time before drainage in the previous humidification cycle; The control unit is used to open the drain valve and control the electrode humidifier to drain water until the target drainage time is reached. The second determining unit includes a first determining module, a second determining module, and a third determining module. The first determining module is used to determine the drainage time of the electrode humidifier in the previous humidification cycle as the target drainage time of the electrode humidifier in the current humidification cycle when the humidification operating time change rate is within the range of the time change rate. The second determining module is used to determine the difference between the drainage time of the electrode humidifier in the previous humidification cycle and the drainage time adjustment value as the target drainage time of the electrode humidifier in the current humidification cycle when the humidification operating time change rate is greater than the upper limit of the range of the time change rate. The third determining module is used to determine the sum of the drainage time of the electrode humidifier in the previous humidification cycle and the drainage time adjustment value as the target drainage time of the electrode humidifier in the current humidification cycle when the humidification operating time change rate is less than the lower limit of the range of the time change rate. The upper limit of the range of the time change rate is the sum of 1 and the time change rate adjustment value, and the lower limit of the range of the time change rate is the difference between 1 and the time change rate adjustment value.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein, when the program is executed, it controls the device containing the computer-readable storage medium to perform the control method for the computer room air conditioner according to any one of claims 1 to 6.

9. A computer room air conditioner, characterized in that, include: One or more processors, a control device for a computer room air conditioner, and one or more programs, wherein the one or more programs are stored in the control device and configured to be executed by the one or more processors, the one or more programs including a control method for performing the computer room air conditioner according to any one of claims 1 to 6.

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