Method and apparatus for controlling a spray system of an air conditioner, air conditioner, storage medium

Abstract

The application relates to the technical field of intelligent air conditioners, and discloses a method for controlling a spraying system of an air conditioner, which comprises the following steps: when the air conditioner is in a refrigeration state and the spraying system sprays a condenser, obtaining an initial power of a water pump and a flow time of spraying water flow on the surface of the condenser; obtaining the flow time of the spraying water flow on the surface of the condenser again after a preset time; calculating a target power of the water pump according to the flow times before and after the preset time and the initial power of the water pump; and controlling the water pump to operate according to the target power. The application can calculate the target power of the water pump after the preset time according to the flow time of the spraying water flow and the initial power of the water pump, and then control the water pump to operate according to the target power, so that the spraying water flow can always evaporate on the surface of the condenser, the excessive spraying water flow falling from the condenser is avoided, and the heat dissipation effect of the condenser is improved. The application further discloses a device for controlling the spraying system of the air conditioner, an air conditioner and a storage medium.

Description

Technical Field

[0001] The present application relates to the technical field of intelligent air conditioners, for example, to a method and device for controlling a spray system of an air conditioner, an air conditioner, and a storage medium. Background Art

[0002] When an air conditioner is operating in cooling mode, the outdoor heat exchanger (condenser) temperature is high. Excessively high outdoor heat exchanger temperatures can adversely affect the air conditioner's operation, necessitating prompt cooling. Currently, some air conditioners cool and dissipate heat by spraying water onto the outdoor heat exchanger. The sprayed water flows over the surface of the outdoor heat exchanger, exchanging heat with it and lowering its temperature.

[0003] In the process of implementing the embodiments of the present disclosure, it was found that there are at least the following problems in the related art: after the spray water flow exchanges heat with the outdoor heat exchanger, it flows into the water tank of the outdoor unit, which easily causes the water temperature in the water tank to rise, and further drives the temperature around the outdoor heat exchanger to rise, reducing the spray cooling effect on the outdoor heat exchanger. Summary of the Invention

[0004] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0005] The embodiments of the present disclosure provide a method and device for controlling a spray system of an air conditioner, an air conditioner, and a storage medium, so that the spray water flow evaporates completely on the surface of an outdoor heat exchanger, thereby improving the heat dissipation effect of the spray water flow on the outdoor heat exchanger.

[0006] In some embodiments, a method for controlling a spray system of an air conditioner, wherein the spray system is configured to spray water onto a condenser of the air conditioner and includes a water pump, the method comprising:

[0007] When the air conditioner is in cooling mode and the spray system is spraying the condenser, obtain the initial power of the water pump and the flow time of the spray water on the condenser surface. The flow time is the time it takes for the spray water to flow on the condenser and evaporate completely.

[0008] After a preset time, the flow time of the spray water on the condenser surface is obtained again;

[0009] The target power of the water pump is calculated based on the flow time before and after the preset time and the initial power of the water pump;

[0010] Control the water pump to operate according to the target power.

[0011] In some embodiments, obtaining the flow time of the spray water flow on the condenser surface includes:

[0012] obtaining a temperature of the condenser and a temperature of the spray water flow;

[0013] calculating a flow time of the spray water flow on the surface of the condenser according to a first formula, the first formula involving the temperature of the condenser and the temperature of the spray water flow.

[0014] In some embodiments, the first formula is as follows:

[0015] t = Q / [C * (T1 - T2)],

[0016] wherein t is the flow time of the spray water flow on the surface of the condenser, in s; Q is the latent heat of evaporation of water, in kJ / kg; C is the specific heat capacity of water, in kW / (kg*K); T1 is the temperature of the condenser, in °C; and T2 is the temperature of the spray water flow, in °C.

[0017] In some embodiments, the temperature of the condenser is a temperature of a middle part of the condenser.

[0018] In some embodiments, the temperature of the spray water flow is a temperature of the spray water flow at a water spraying port.

[0019] In some embodiments, a target power of the water pump is calculated according to the flow time before and after the preset time and the initial power of the water pump, specifically calculated according to a second formula as follows:

[0020] P2 = P1 * (t1 / t2),

[0021] wherein P2 is the target power, P1 is the initial power, t1 is the flow time before the preset time, and t2 is the flow time after the preset time.

[0022] In some embodiments, the preset time is 10s-30s.

[0023] In some embodiments, an apparatus for controlling a spray system of an air conditioner includes a processor and a memory storing program instructions, the processor being configured to execute a method for controlling a spray system of an air conditioner as described above when the program instructions are run.

[0024] In some embodiments, an air conditioner includes an apparatus for controlling a spray system of an air conditioner as described above.

[0025] In some embodiments, a storage medium stores program instructions, the program instructions being executed to perform a method for controlling a spray system of an air conditioner as described above when run.

[0026] The method and device for controlling the spraying system of the air conditioner, the air conditioner and the storage medium provided by the embodiments of the present disclosure can achieve the following technical effects: when the air conditioner is cooling and the condenser is sprayed for heat dissipation, the flow time required for the spraying water to evaporate completely on the surface of the condenser and the initial power of the water pump corresponding to the flow time are obtained, the flow time of the spraying water flow on the surface of the condenser is obtained again after a preset time, the target power of the water pump after the preset time is calculated according to the above parameters, and then the water pump is controlled to operate according to the target power, so that the spraying water flow can always evaporate completely on the surface of the condenser in the process of condenser heat dissipation, and the generation of excessive spraying water flow falling from the condenser is avoided, the heat dissipation effect of the condenser is improved, and the spraying water can also be fully utilized.

[0027] The foregoing general description and the following description are merely exemplary and explanatory, and are not intended to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0028] One or more embodiments are illustrated by way of example in the accompanying drawings, which are not intended to limit the embodiments and in which like references numbers refer to like elements, the drawings are not to scale, and in which:

[0029] Figure 1 is a schematic diagram of a method for controlling a spraying system of an air conditioner provided by an embodiment of the present disclosure;

[0030] Figure 2 is a schematic diagram of another method for controlling a spraying system of an air conditioner provided by an embodiment of the present disclosure;

[0031] Figure 3 is a schematic diagram of another method for controlling a spraying system of an air conditioner provided by an embodiment of the present disclosure;

[0032] Figure 4 is a schematic diagram of a device for controlling a spraying system of an air conditioner provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0033] In order to enable a person skilled in the art to more fully understand the features and technical contents of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are used only for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0034] The terms "first", "second", and the like in the description and claims of the present disclosure 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 disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0035] Unless otherwise specified, the term "a plurality of" means two or more.

[0036] In the present disclosure, the character " / " represents a "or" relationship between the objects before and after it. For example, A / B means: A or B.

[0037] The term "and / or" is a description of the association relationship between objects, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, the three relationships.

[0038] The term "corresponding" can refer to an association or binding relationship. A and B correspond to each other means that A and B have an association or binding relationship.

[0039] The spray system of the air conditioner is configured to spray water to the condenser of the air conditioner to dissipate heat from the condenser, comprising: a water pipe, a water sprayer and a water pump, the water sprayer being in communication with the water pipe and having one or more water spraying openings, and the water pump being arranged in the water pipe and being used to drive water flowing in the water pipe. The air conditioner sprays water to the condenser through the spray system, the water flow exchanges heat with the condenser, and the temperature of the condenser is reduced, which is conducive to the operation of the air conditioner for refrigeration in the case that the condenser dissipates heat well.

[0040] In combination Figure 1 As shown, a method for controlling a spray system of an air conditioner, comprising:

[0041] S01, when the air conditioner is in a refrigeration state and the spray system sprays the condenser, the air conditioner acquires the initial power of the water pump and the flow time of the spray water flow on the surface of the condenser; the flow time is the time for which the spray water flows on the condenser and can be completely evaporated;

[0042] S02, the air conditioner acquires the flow time of the spray water flow on the surface of the condenser again after a preset time;

[0043] S03, the air conditioner calculates the target power of the water pump according to the flow times before and after the preset time and the initial power of the water pump;

[0044] S04, the air conditioner controls the water pump to operate according to the target power.

[0045] By adopting the method for controlling the spray system of an air conditioner provided by the embodiment of the present disclosure, when the air conditioner is cooling and the condenser is sprayed to dissipate heat, the flow time required for the spray water to completely evaporate on the surface of the condenser and the corresponding initial power of the water pump are obtained, and the flow time of the spray water flow on the surface of the condenser is obtained again after the preset time. The target power of the water pump after the preset time is calculated based on the above parameters, and then the water pump is controlled to operate according to the target power. In the process of heat dissipation of the condenser, the spray water flow can always be completely evaporated on the surface of the condenser, thereby avoiding the generation of excess spray water flow falling from the condenser, improving the heat dissipation effect on the condenser, and making full use of the spray water.

[0046] When the air conditioner is in cooling state, the outdoor heat exchanger as a condenser needs to release heat. Spraying water on the condenser through the spray system can dissipate heat from the outdoor heat exchanger.

[0047] Spray water flows generally downward across the condenser surface, where its temperature rises and it evaporates continuously. Complete evaporation of spray water means that the spray water evaporates into water vapor before it falls from the condenser surface. This prevents excess spray water from falling from the condenser surface and prevents heat-carrying spray water from entering the water storage tank or other water collection device, improving the heat dissipation effect on the condenser.

[0048] The acquisition of pump power and flow time in the disclosed embodiments can be continuous, allowing the air conditioner to respond promptly to parameter changes. Alternatively, the acquisition can be periodic, for example, every 10 to 30 seconds, to reduce data processing while maintaining dynamic control. The above description of parameter acquisition does not constitute a specific limitation; those skilled in the art can determine the appropriate acquisition frequency based on actual circumstances.

[0049] Alternatively, the power of the water pump can be obtained by installing a flow sensor on the water pump to detect the water flow rate, and then calculating the power of the water pump using the power calculation formula. For example, the power of the water pump P = ρgQH, where P is the power of the water pump (KW); ρ is the density of water (kg / m 3 ); Q is the pump flow rate (m 3 / s); H is the pump head (m); g is the acceleration due to gravity (m / s 2 ).

[0050] The air conditioner may also be provided with other detection devices to detect the initial power of the water pump.

[0051] Combine Figure 2 As shown, a flow sensor is provided at the water pump of the air conditioner, and a calculation module is provided inside the air conditioner. The method for controlling the spray system of the air conditioner includes:

[0052] S013, when the air conditioner is in a refrigeration state and the spraying system sprays the condenser, the flow sensor of the air conditioner acquires an initial flow of water in the water pipe;

[0053] S014, the calculation module of the air conditioner calculates an initial power of the water pump according to the initial flow, the density of water, the head of the water pump and the acceleration of gravity;

[0054] S015, the air conditioner acquires a flow time of the spraying water flow on the surface of the condenser; the flow time is a time for which the spraying water flows on the condenser and can be completely evaporated;

[0055] S02, the air conditioner again acquires the flow time of the spraying water flow on the surface of the condenser after a preset time;

[0056] S03, the air conditioner calculates a target power of the water pump according to the flow times before and after the preset time and the initial power of the water pump;

[0057] S04, the air conditioner controls the water pump to operate according to the target power.

[0058] The method for controlling the spraying system of the air conditioner provided by the embodiments of the present disclosure can acquire the initial power of the water pump for subsequent steps. The air conditioner again acquires the flow time of the spraying water flow on the surface of the condenser after a preset time, and calculates the target power of the water pump after the preset time according to the flow time and the initial power and other parameters, so that when the water pump operates according to the target power, the spraying water is completely evaporated on the surface of the condenser, and the heat dissipation effect of the condenser is improved.

[0059] In combination with Figure 3 the drawing, the flow time of the spraying water flow on the surface of the condenser is acquired, which includes:

[0060] S011, when the air conditioner is in a refrigeration state and the spraying system sprays the condenser, the air conditioner acquires an initial power of the water pump, and acquires a temperature of the condenser and a temperature of the spraying water flow;

[0061] S012, the air conditioner calculates the flow time of the spraying water flow on the surface of the condenser according to a first formula, the first formula involving the temperature of the condenser and the temperature of the spraying water flow; the flow time is a time for which the spraying water flows on the condenser and can be completely evaporated;

[0062] S021, the air conditioner again acquires the temperature of the condenser and the temperature of the spraying water flow after a preset time;

[0063] S022, the air conditioner calculates the flow time of the spraying water flow on the surface of the condenser after the preset time according to the again-acquired temperature of the condenser and the temperature of the spraying water flow and the first formula;

[0064] S03, the air conditioner calculates the target power of the water pump according to the flow time before and after the preset time and the initial power of the water pump;

[0065] S04, the air conditioner controls the water pump to operate according to the target power.

[0066] By using the method for controlling the spraying system of the air conditioner provided in the embodiments of the present disclosure, the flow time of the spraying water flow on the surface of the condenser can be calculated according to the temperature of the condenser and the temperature of the spraying water flow, the spraying water flow can flow on the surface of the condenser according to the flow time, and the water flow can be completely evaporated on the surface of the condenser. In the process of spraying heat dissipation, the surface temperature of the condenser and the temperature of the spraying water flow can change, the temperature of the condenser and the temperature of the spraying water flow are acquired again after the preset time, the flow time is calculated again, and then the water pump is controlled to operate at the target power, so that the spraying water flow can flow on the surface of the condenser according to the flow time after the preset time, and the water flow can still be completely evaporated on the surface of the condenser.

[0067] The target power of the water pump after the preset time can be calculated according to the flow time before and after the preset time and the initial power of the water pump. The initial power of the water pump, the target power, and the flow time before and after the preset time have a certain proportional relationship, so that after three parameters are acquired, the remaining parameters can be calculated by using the proportional relationship.

[0068] The embodiments of the present disclosure can acquire the temperature of the condenser and the temperature of the spraying water flow every preset time, and then adjust the power of the water pump, so that the spraying water flow can always be completely evaporated on the surface of the condenser.

[0069] Optionally, the preset time is 10s-30s. In this way, the frequency of adjusting the power of the water pump is limited, so that when the surface temperature of the condenser and the temperature of the spraying water flow change, the power of the water pump can be adjusted in time to ensure that the water flow is completely evaporated on the surface of the condenser, avoid generating excess water flow, and improve the heat dissipation effect of the condenser.

[0070] Optionally, the air conditioner can detect the temperature of the condenser by arranging a first temperature sensor on the condenser, and detect the temperature of the spraying water flow by arranging a second temperature sensor on the water outlet.

[0071] In some embodiments, the first formula is as follows:

[0072] t=Q / [C*(T1-T2)],

[0073] wherein t is the flow time of the spraying water flow on the surface of the condenser, in s; Q is the latent heat of evaporation of water, in kJ / kg; C is the specific heat capacity of water, in kW / (kg*K); T1 is the temperature of the condenser, in ℃; and T2 is the temperature of the spraying water flow, in ℃.

[0074] For example, the specific heat capacity of water is known to be 4.2 kW / (kg*K), the latent heat of vaporization is 2257 kJ / kg, T1=30℃, T2=12℃, then the flow time is:

[0075] t=Q / C*(T1-T2)=2257 / [4.2*(30-12)]≈30s.

[0076] Thus, by controlling the power of the water pump, the flow time of the spraying water on the surface of the condenser is 30s, and the spraying water can be completely evaporated on the surface of the condenser.

[0077] In some embodiments, the temperature of the condenser is the temperature of the middle part of the condenser. The temperature of the middle part of the condenser can reflect the overall temperature of the condenser, and the temperature of the middle part of the condenser can obtain more accurate flow time data.

[0078] Optionally, a first temperature sensor is arranged at the middle part of the condenser. The air conditioner obtains the temperature of the middle part of the condenser through the first temperature sensor. Optionally, the air conditioner continuously obtains the temperature of the middle part of the condenser. Thus, the temperature of the condenser can be monitored in real time. Optionally, the air conditioner obtains the temperature of the middle part of the condenser every preset time. Thus, the temperature detection does not need to be performed frequently, so as to reduce the data processing amount while maintaining dynamic control, and the dynamic adjustment of the power of the water pump can also be realized. The above description of obtaining parameters does not constitute a specific limitation, and a person skilled in the art can determine a suitable acquisition frequency according to the actual situation.

[0079] In some embodiments, the temperature of the spraying water flow is the temperature of the spraying water flow at the water spraying port. The spraying water flow is transported from the water source to the water spraying port through the water pipe, and the temperature is likely to change during the flow process. The temperature of the spraying water flow at the water spraying port is taken as the temperature of the spraying water flow, so that more accurate flow time data can be calculated.

[0080] Optionally, a second temperature sensor is arranged at the water spraying port. The air conditioner obtains the temperature of the spraying water flow at the water spraying port through the second temperature sensor. Similarly to the way of obtaining the temperature of the condenser, the air conditioner can continuously obtain the temperature of the spraying water flow, or can obtain the temperature of the spraying water flow every preset time.

[0081] In some embodiments, the target power of the water pump is calculated according to the flow time before and after the preset time and the initial power of the water pump, and the following second formula is used for calculation:

[0082] P2=P1*(t1 / t2),

[0083] wherein P2 is the target power, P1 is the initial power, t1 is the flow time before the preset time, and t2 is the flow time after the preset time.

[0084] The ratio of the flow time before and after the preset time has a certain relationship with the ratio of the water pump power before and after the preset time. The relationship can be used to calculate the unknown parameter according to three known parameters.

[0085] For example, the initial power P1 of the water pump is 2.5W, and the flow time t1 corresponding to the initial power is 25s. After the preset time, the flow time of the water pump is 30s, and the target power P2 is:

[0086] P2 = P1*(t1 / t2) = 2.5*(25 / 30) = 2.0W.

[0087] The initial power of the water pump and the flow time corresponding thereto can be determined by experiment.

[0088] For example, the relationship between the flow time and the water pump power established by the experiment is shown in the following table:

[0089] Flow time (s) 0-5 5-10 10-15 15-20 21-25 25-30 Water pump power (W) 0.5 1 1.5 2 2.5 3

[0090] In the case of knowing the flow time, the initial power of the water pump corresponding to the flow time can be obtained by looking up the table.

[0091] In some embodiments, the preset time is 10s-30s. The temperature of the condenser and the temperature of the spray water flow can be obtained again after 10s-30s to calculate the flow time of the spray water flow on the surface of the condenser.

[0092] Optionally, the preset time is 10s. In this way, the temperature of the condenser and the temperature of the spray water flow can be obtained after a shorter preset time, so that the adjustment of the water pump power is more timely. If the preset time is less than 10s, on the one hand, the temperature of the condenser will not change too much or even not change in such a short time; on the other hand, the detection of parameters is too frequent, which increases the data processing amount.

[0093] Optionally, the preset time is 30s. In this way, the temperature of the condenser and the temperature of the spray water flow are likely to change, which can be detected obviously, and the adjustment of the water pump power can be more timely; the preset time of 30s is appropriate for the detection frequency of parameters, and does not produce too much data processing amount.

[0094] In combination Figure 4As shown, the apparatus for controlling the spraying system of the air conditioner provided by the embodiments of the present disclosure includes a processor 100 and a memory 101. Optionally, the apparatus can also include a communication interface 102 and a bus 103. The processor 100, the communication interface 102 and the memory 101 can communicate with each other through the bus 103. The communication interface 102 can be used for information transmission. The processor 100 can invoke the logic instructions in the memory 101 to execute the method for controlling the spraying system of the air conditioner in the above embodiments.

[0095] In addition, the logic instructions in the memory 101 described above can be implemented in the form of a software function unit and sold or used as an independent product, which can be stored in a computer readable storage medium.

[0096] The memory 101 as a computer readable storage medium can be used to store software programs, computer executable programs, such as program instructions / modules corresponding to the method in the embodiments of the present disclosure. The processor 100 executes the program instructions / modules stored in the memory 101, thereby performing function applications and data processing, that is, implementing the method for controlling the spraying system of the air conditioner in the above embodiments.

[0097] The memory 101 can include a program storage area and a data storage area. The program storage area can store an operating system and at least one application required by a function; the data storage area can store data created according to the use of the terminal device, etc. In addition, the memory 101 can include a high-speed random access memory, and can also include a non-volatile memory.

[0098] The embodiments of the present disclosure provide an air conditioner including the apparatus for controlling the spraying system of the air conditioner described above.

[0099] The embodiments of the present disclosure provide a storage medium storing program instructions, which, when executed, perform the method for controlling the spraying system of the air conditioner as described above.

[0100] The embodiments of the present disclosure provide a computer readable storage medium storing computer executable instructions, which are configured to perform the method for controlling the spraying system of the air conditioner described above.

[0101] The embodiments of the present disclosure provide a computer program product including a computer program stored on a computer readable storage medium, the computer program including program instructions, which, when executed by a computer, cause the computer to perform the method for controlling the spraying system of the air conditioner described above.

[0102] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0103] The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present disclosure. The aforementioned storage medium may be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program code, or a transient storage medium.

[0104] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to also include plural forms. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more associated listings. In addition, when used in this application, the term "comprise" and its variations "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups of these. In the absence of further restrictions, an element defined by the sentence "comprising a..." does not exclude the presence of other identical elements in the process, method or device that includes the element. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments can be referenced to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can be found in the description of the method part.

[0105] Those skilled in the art can understand that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. The skilled person can use different methods for each specific application to realize the described functions, but such implementation should not be considered beyond the scope of the embodiments of the present disclosure. The skilled person can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0106] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the above-described device embodiments are only schematic, for example, the division of the units can only be a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms. The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to implement the embodiments. In addition, each functional unit in the embodiments of the present disclosure can be integrated in one processing unit, or each unit can be a physically independent unit, or two or more units can be integrated in one unit.

[0107] The computer program instructions can also be loaded onto a computer, other programmable data processing apparatus, or other processing device to cause a series of operational steps to be performed on the computer, other programmable apparatus or other processing device to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide processes for implementing the functions / acts specified in the flowchart and / or block diagram block or blocks.

Claims

1. A method for controlling a spray system of an air conditioner, characterized by, The spraying system is configured to spray water to a condenser of the air conditioner, and the method comprises: When the air conditioner is in a refrigeration state and the spraying system sprays the condenser, obtaining an initial power of the water pump and a flow time of the spraying water flow on the surface of the condenser; the flow time is a time for which the spraying water flows on the condenser and can be completely evaporated; After a preset time, obtaining the flow time of the spraying water flow on the surface of the condenser again; According to the flow times before and after the preset time and the initial power of the water pump, calculating a target power of the water pump; Controlling the water pump to operate according to the target power; The method comprises: obtaining a temperature of the condenser and a temperature of the spraying water flow; according to a first formula, calculating the flow time of the spraying water flow on the surface of the condenser, the first formula involving the temperature of the condenser and the temperature of the spraying water flow; the first formula is as follows: t=Q / [C*(T1-T2)], wherein t is the flow time of the spraying water flow on the surface of the condenser, in seconds; Q is latent heat of evaporation of water, in kJ / kg; C is specific heat capacity of water, in kW / (kg*K); T1 is the temperature of the condenser, in ℃; and T2 is the temperature of the spraying water flow, in ℃. According to the flow times before and after the preset time and the initial power of the water pump, calculating a target power of the water pump, specifically using a second formula for calculation: P2=P1*(t1 / t2), wherein P2 is the target power, P1 is the initial power, t1 is the flow time before the preset time, and t2 is the flow time after the preset time.

2. The method of claim 1, wherein, The temperature of the condenser is a temperature of a middle part of the condenser.

3. The method of claim 1, wherein, The temperature of the spraying water flow is a temperature of the spraying water flow at a water spraying port.

4. The method according to claim 1, 2 or 3, characterized in that, The preset time is 10s-30s. 5.A device for controlling a spray system of an air conditioner, comprising a processor and a memory having stored program instructions, characterized in that, The processor is configured to execute the method for controlling the spraying system of the air conditioner when the program instructions are executed.

6. An air conditioner characterized by comprising: The device for controlling the spraying system of the air conditioner.

7. A storage medium storing program instructions, characterized in that, The program instructions are executed to perform the method for controlling the spraying system of the air conditioner when executed.

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