Central air conditioner condensation online cleaning control method, control device, equipment and storage medium

Abstract

The invention relates to the technical field of central air conditioners, and discloses a central air conditioner condensation online cleaning control method and device, equipment and a storage medium. Judging a fluid state according to the fluid data; when the fluid state is a turbulent flow state, the condensation online cleaning device is started; and when the fluid state is a non-turbulent state, a pitching machine and a pitching pump in the condensation online cleaning device are closed. When the fluid state is the turbulent flow state, the condensation online cleaning device is started, the cleaning effect can be ensured, when the fluid state is the non-turbulent flow state, the ball serving machine and the ball serving pump in the condensation online cleaning device are closed, energy consumption increase caused by cleaning in the non-turbulent flow state is avoided, and more energy is saved.

Description

Technical Field

[0001] This invention relates to the field of central air conditioning technology, specifically to a method, control device, equipment, and storage medium for online cleaning control of central air conditioning condensate. Background Technology

[0002] In central air conditioning cooling water systems, because the cooling water system is an open system, water comes into a lot of contact with outdoor air to generate heat exchange. The water replenished by evaporation loss contains a lot of impurities. During the operation of the cooling tower, dust is washed and accumulated, generating and accumulating a large amount of scale, dirt, microorganisms, etc., which form dirt on the surface of the heat exchange tubes of the condenser, causing the heat transfer of the condenser to deteriorate and the efficiency to decrease.

[0003] In related technologies, central air conditioning refrigeration systems are equipped with online condenser cleaning devices. A ball launcher and a ball retriever are installed on the inlet pipe of the cooling water of the condenser of the central air conditioning refrigeration unit. The movement of the rubber balls, under the action of water force, scrubs the deposits on the inner tube wall of the condenser heat exchange tube, keeping the tube wall clean, maintaining the condenser heat exchange efficiency, slowing down the rate of decline of heat exchange efficiency, thereby reducing energy consumption and saving energy.

[0004] However, the cleaning frequency of the online condenser cleaning device is unreasonable. The cleaning frequency cannot be adjusted with load changes. The cleaning is insufficient during high load periods and the cleaning effect is not ideal during low load periods. Summary of the Invention

[0005] In view of this, the present invention provides a method, control device, equipment and storage medium for online cleaning control of central air conditioning condensate, so as to solve the problem of unreasonable cleaning frequency of online condensate cleaning devices in related technologies.

[0006] In a first aspect, the present invention provides a method for online cleaning and control of central air conditioning condensate, comprising: Acquire fluid data; Determine the fluid state based on fluid data; When the fluid is in a turbulent state, turn on the online condensation cleaning device; When the fluid is in a non-turbulent state, shut down the ball launcher and ball launch pump in the online condenser cleaning device.

[0007] Beneficial effects: In non-turbulent flow conditions, the water flow lines are parallel and orderly, resulting in low heat transfer efficiency, low fluid shear force, and easy sedimentation of dirt, leading to unsatisfactory cleaning results. The object being cleaned may not be able to be moved stably or may even get stuck. In turbulent flow conditions, the fluid flow is chaotic and disordered, and the fluid and the object being cleaned generate strong eddy mixing, which can enhance heat transfer. High shear force can inhibit dirt buildup, and strong eddies can ensure full and random contact and collision between the object being cleaned and the pipe wall, resulting in the best cleaning effect. Therefore, by acquiring fluid data and judging the fluid state based on the data, when the fluid state is turbulent, turning on the online condenser cleaning device can ensure the cleaning effect. When the fluid state is non-turbulent, turning off the ball launcher and ball pump in the online condenser cleaning device can avoid increased energy consumption due to cleaning in non-turbulent conditions, thus saving energy.

[0008] In one optional implementation, acquiring the fluid data includes: Obtain the fluid velocity v and the fluid kinematic viscosity. ; According to Re=vd / Calculate the Reynolds number Re, where d is the pipe inner diameter; The step of determining the fluid state based on fluid data includes: When Re ≥ the first preset value, the fluid state is determined to be turbulent; when Re < the first preset value, the fluid state is determined to be non-turbulent.

[0009] Beneficial effects: By obtaining the fluid velocity v and the fluid kinematic viscosity According to Re=vd / The Reynolds number Re is calculated. When Re ≥ the first preset value, the fluid state is determined to be turbulent. When Re < the first preset value, the fluid state is determined to be non-turbulent. This method can accurately determine whether the fluid state is turbulent or non-turbulent.

[0010] In one optional implementation, acquiring the fluid data further includes acquiring the fluid temperature; Obtaining the kinematic viscosity of fluids This includes obtaining the kinematic viscosity of a fluid from a table based on its temperature. .

[0011] Beneficial effects: Due to differences in fluid temperature, the kinematic viscosity of the fluid... Different, while Re=vd / Therefore, by obtaining the fluid temperature, the kinematic viscosity of the fluid can be obtained by looking up a table based on the fluid temperature. Then the Reynolds number Re can be accurately calculated. When Re ≥ the first preset value, the fluid state is judged to be turbulent. When Re < the first preset value, the fluid state is judged to be non-turbulent. It can accurately determine whether the fluid state is turbulent or non-turbulent.

[0012] In one optional implementation, the non-turbulent state includes a laminar flow state and a transitional flow state. When Re ≤ a second preset value, the fluid state is determined to be a laminar flow state; when the second preset value < Re < a first preset value, the fluid state is determined to be a transitional flow state.

[0013] In one optional implementation, the acquisition of fluid data further includes: Obtain the operating frequency parameters of the cooling water pump motor.

[0014] Beneficial effects: During high-load periods, the cooling water pump motor of the central air conditioning refrigeration system operates at a high frequency, resulting in a high fluid velocity and a tendency for the fluid to reach a turbulent state. In this turbulent state, activating the online condenser cleaning device increases the cleaning frequency during high-load periods. Conversely, during low-load periods, the cooling water pump motor operates at a lower frequency, resulting in a lower flow velocity of the cooled water and a more non-turbulent fluid state. In this case, shutting down the ball generator and ball pump in the online condenser cleaning device reduces the cleaning frequency, leading to greater energy savings. This embodiment, by obtaining the operating frequency parameters of the cooling water pump motor, enables an increase in the cleaning frequency during high-load periods and a decrease in the cleaning frequency during low-load periods.

[0015] In an optional implementation, when the fluid state is non-turbulent, the control method further includes: Recycle the rubber balls, and shut down the online condensation cleaning device when the ball recovery rate reaches the preset ratio.

[0016] Beneficial effects: When the fluid is in a non-turbulent state, the ball launcher and ball launch pump in the online condensation cleaning device are turned off to avoid increased energy consumption caused by cleaning in a non-turbulent state, thus saving energy. At the same time, the balls are recovered, and the online condensation cleaning device is turned off when the ball recovery rate reaches the preset ratio.

[0017] In an optional implementation, when the fluid state is non-turbulent, the control method further includes: The online condensation cleaning device is activated for a preset duration at preset intervals.

[0018] Beneficial effects: When the fluid is in a non-turbulent state, since the central air conditioning is still in operation, the online condenser cleaning device can be turned on for a preset duration at preset intervals to ensure the efficiency of the central air conditioning condenser system and improve the cooling effect.

[0019] Secondly, the present invention also provides a central air conditioning condensate online cleaning control device, comprising: The acquisition module is used to acquire fluid data; The judgment module is used to determine the fluid state based on fluid data. The execution module is used to turn on the online condensation cleaning device when the fluid is in a turbulent state, and to turn off the ball launcher and ball launch pump in the online condensation cleaning device when the fluid is in a non-turbulent state.

[0020] Thirdly, the present invention also provides a computer device, characterized in that it comprises: The system includes a memory and a processor, which are interconnected. The memory stores computer instructions, and the processor executes these computer instructions to perform the online cleaning control method for central air conditioning condensate.

[0021] Fourthly, the present invention also provides a computer-readable storage medium, characterized in that the computer-readable storage medium stores computer instructions, the computer instructions being used to cause a computer to execute the aforementioned online cleaning control method for central air conditioning condensate. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a flowchart of an online cleaning and control method for central air conditioning condensate according to an embodiment of the present invention. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] In central air conditioning cooling water systems, because the cooling water system is an open system, water comes into a lot of contact with outdoor air to generate heat exchange. The water replenished by evaporation loss contains a lot of impurities. During the operation of the cooling tower, dust is washed and accumulated, generating and accumulating a large amount of scale, dirt, microorganisms, etc., which form dirt on the surface of the heat exchange tubes of the condenser, causing the heat transfer of the condenser to deteriorate and the efficiency to decrease.

[0029] In related technologies, central air conditioning refrigeration systems are equipped with online condenser cleaning devices. A ball launcher and a ball retriever are installed on the inlet pipe of the cooling water of the condenser of the central air conditioning refrigeration unit. The movement of the rubber balls, under the action of water force, scrubs the deposits on the inner tube wall of the condenser heat exchange tube, keeping the tube wall clean, maintaining the condenser heat exchange efficiency, slowing down the rate of decline of heat exchange efficiency, thereby reducing energy consumption and saving energy.

[0030] However, the cleaning frequency of the online condenser cleaning device is unreasonable. The cleaning frequency cannot be adjusted with load changes. The cleaning is insufficient during high load periods and the cleaning effect is not ideal during low load periods.

[0031] The key factor in cleaning the inner wall of heat exchange tubes using rubber sponge balls is the water flow rate. The principle of online condenser cleaning relies on the physical contact and friction between the cleaning object (rubber ball, brush) and the inner wall of the heat exchange tube (referred to as the tube wall) to remove dirt. Therefore, the water flow rate directly affects the cleaning effect. The water flow has a driving effect on the cleaning object. When the water flow rate is too low, it cannot effectively push the cleaning object through the heat exchange tube, especially in complex pipelines with bends or diameter changes, easily causing blockages. Furthermore, the contact force between the cleaning object and the tube wall is insufficient, resulting in poor cleaning. Because the water flow itself has a shearing force on the dirt, it has a flushing effect on the dirt on the tube wall. The higher the water flow rate, the greater the shear stress on the tube wall, which helps prevent new dirt deposition and assists in removing loosened dirt. Fluids in pipes can be categorized into turbulent and non-turbulent states based on their flow characteristics. In non-turbulent states, the water flow lines are parallel and orderly, resulting in low heat transfer efficiency, low fluid shear force, and easy deposition of dirt, leading to unsatisfactory cleaning results. The object being cleaned may not be able to be moved stably or may even become stuck. In turbulent states, the fluid flow is chaotic and disordered, generating strong eddies that mix with the object being cleaned. This enhances heat transfer, the high shear force inhibits dirt buildup, and the strong eddies ensure sufficient and random contact and collision between the object and the pipe wall, resulting in optimal cleaning performance.

[0032] The following is combined with Figure 1 The following describes embodiments of the present invention.

[0033] According to an embodiment of the present invention, in one aspect, a method for online cleaning and control of central air conditioning condensate is provided, comprising: Acquire fluid data; Determine the fluid state based on fluid data; When the fluid is in a turbulent state, turn on the online condensation cleaning device; When the fluid is in a non-turbulent state, shut down the ball launcher and ball launch pump in the online condenser cleaning device.

[0034] In this embodiment, because the water flow streamlines are parallel and orderly in the non-turbulent state, the heat transfer efficiency is low, the fluid shear force is small, and dirt is easily deposited, resulting in a very unsatisfactory cleaning effect. The object being cleaned may not be able to be pushed stably or may even get stuck. In the turbulent state, the fluid flow is chaotic and disorderly, and the fluid and the object being cleaned generate strong eddy mixing, which can enhance heat transfer. The high shear force can suppress dirt, and the strong eddy can ensure that the object being cleaned has full and random contact and collision with the pipe wall, resulting in the best cleaning effect. Therefore, by acquiring fluid data and judging the fluid state based on the fluid data, when the fluid state is turbulent, the online condenser cleaning device can be turned on to ensure the cleaning effect. When the fluid state is non-turbulent, the ball launcher and ball pump in the online condenser cleaning device are turned off to avoid increased energy consumption due to cleaning in the non-turbulent state, thus saving more energy.

[0035] It should be noted that during high-load periods, the cooling water pump motor of the central air conditioning refrigeration system operates at a higher frequency, resulting in a higher fluid velocity and a tendency for the fluid to reach a turbulent state. In this turbulent state, the online condenser cleaning device is activated, thus increasing the cleaning frequency during high-load periods. Conversely, during low-load periods, the cooling water pump motor operates at a lower frequency, resulting in a lower flow velocity of the cooled water and a more non-turbulent fluid state. In this case, the ball generator and ball pump in the online condenser cleaning device are turned off, reducing the cleaning frequency and thus saving energy.

[0036] In one specific embodiment, the online condensation cleaning device includes a ball launcher, a ball catcher, and a ball trap. The ball launcher's launch port is connected to the condenser's water inlet, and a ball launcher pump and an electric valve are provided between the ball launcher's launch port and the condenser's water inlet. When the fluid is in a turbulent state, starting the online condensation cleaning device specifically includes starting the ball launcher, the ball launcher pump, and the electric valve.

[0037] In one embodiment, acquiring fluid data includes: Obtain the fluid velocity v and the fluid kinematic viscosity. ; According to Re=vd / Calculate the Reynolds number Re, where d is the pipe inner diameter; Determining the fluid state based on fluid data includes: When Re ≥ the first preset value, the fluid state is determined to be turbulent; when Re < the first preset value, the fluid state is determined to be non-turbulent.

[0038] In this embodiment, the fluid velocity v and the fluid kinematic viscosity are obtained. According to Re=vd / The Reynolds number Re is calculated. When Re ≥ the first preset value, the fluid state is determined to be turbulent. When Re < the first preset value, the fluid state is determined to be non-turbulent. This method can accurately determine whether the fluid state is turbulent or non-turbulent.

[0039] In one specific embodiment, the first preset value is 4000.

[0040] Specifically, the flow velocity v of the fluid can be detected and obtained by installing a flow velocity sensor inside the pipe.

[0041] In an alternative embodiment, due to the fluid kinematic viscosity The change in velocity v is relatively small, so it has little impact on the Reynolds number Re. The fluid velocity v has a greater impact on the Reynolds number Re. Fluid data can be obtained by only obtaining the fluid velocity v and judging the fluid state based on the fluid velocity v. For example, when the fluid velocity v ≥ the first velocity, the fluid state is judged to be turbulent, and when v < the first velocity, the fluid state is judged to be non-turbulent.

[0042] In one embodiment, acquiring fluid data further includes acquiring fluid temperature; Obtaining the kinematic viscosity of fluids This includes obtaining the kinematic viscosity of a fluid from a table based on its temperature. .

[0043] In this embodiment, due to differences in fluid temperature, the kinematic viscosity of the fluid... Different, while Re=vd / Therefore, by obtaining the fluid temperature, the kinematic viscosity of the fluid can be obtained by looking up a table based on the fluid temperature. Then the Reynolds number Re can be accurately calculated. When Re ≥ the first preset value, the fluid state is judged to be turbulent. When Re < the first preset value, the fluid state is judged to be non-turbulent. It can accurately determine whether the fluid state is turbulent or non-turbulent.

[0044] In one specific embodiment, a temperature sensor is used to detect and acquire the fluid temperature.

[0045] In one specific embodiment, the central air conditioning condenser uses carbon steel tube bundles with the following parameters: inner diameter d = 20 mm (0.02 m), tube length L = 3 m, cleaning medium is 37°C clean water, designed cleaning medium flow velocity v = 2.0 m / s, and dirt diffusion coefficient D = 2 × 10^-9 m. 2 / s.

[0046] Calculation steps: I. Determine fluid properties by referring to tables 37℃ clean water: ρ=992kg / m 3 μ = 0.653 × 10⁻³ Pa·s =0.658×10^-6 m 2 / s.

[0047] II. Calculate the Reynolds number Re to determine the fluid state. Re=vd / =(2.0×0.02) / (0.658×10^-6 m 2 Since ( / s)≈60790, Re≥4000, the fluid state is determined to be turbulent.

[0048] III. Calculation of wall shear stress t_w t_w=0.032μv^(7 / 4) / (d^(1 / 4) ^(3 / 4)); Where, v^(7 / 4) = 2.0^1.75 ≈ 3.363; d^(1 / 4)=0.02^0.25≈0.376; ^(3 / 4) = (0.658 × 10^-6)^0.75 ≈ 1.38 × 10^-5; t_w=0.032×0.653×10^-3×3.363 / (0.376×1.38×10^-5)≈13.8 Pa.

[0049] Since the wall shear stress t_w≈13.8 Pa, it can meet the stripping requirements of most dirt (such as scale and biological slime) (generally, t_w≥5 Pa is sufficient for effective stripping). By calculating the wall shear stress t_w, it can be verified that when the fluid is in a turbulent state, it can effectively strip dirt and ensure cleaning effect.

[0050] IV. Calculating the mass transfer coefficient k (1) First calculate the Schmidt number Sc, Sc = / D=0.658×10^-6 / (2×10^-9)=329; (2) Calculate the Nusselt number Nu, Nu = 0.023Re^0.8 Sc^0.33 = 0.023 × (60790^0.8) × (329^0.33), where 60790^0.8 ​​≈ 60790^(4 / 5) ≈ 8320, 329^0.33 ≈ 6.9, therefore Nu ≈ 0.023 × 8320 × 6.9 ≈ 1310; (3) Calculate the mass transfer coefficient k, k = Nu·D / d = 1310 × 2 × 10^-9 / 0.02 ≈ 1.31 × 10^-4 m / s. Therefore, the mass transfer efficiency is high, which can ensure the full reaction between the cleaning medium and the dirt. By calculating the mass transfer coefficient, it can be verified that when the fluid is in a turbulent state, the full reaction between the cleaning medium and the dirt can be ensured.

[0051] In one embodiment, the non-turbulent state includes laminar flow and transitional flow. When Re ≤ a second preset value, the fluid state is determined to be laminar flow. When the second preset value < Re < a first preset value, the fluid state is determined to be transitional flow.

[0052] In one specific embodiment, the second preset value is 2300.

[0053] In one embodiment, acquiring fluid data further includes: Obtain the operating frequency parameters of the cooling water pump motor.

[0054] In this embodiment, because the central air conditioning refrigeration system operates at a high frequency during high load periods, the fluid velocity is high, and the fluid state is prone to turbulence. In this turbulent state, the online condenser cleaning device is activated, thus increasing the cleaning frequency during high load periods. During low load periods, the cooling water pump motor operates at a low frequency, the cold water velocity is low, and the fluid is mostly in a non-turbulent state. At this time, the ball generator and ball pump in the online condenser cleaning device are turned off, reducing the cleaning frequency and achieving greater energy savings. This embodiment can increase the cleaning frequency during high load periods and decrease the cleaning frequency during low load periods by obtaining the cooling water pump motor operating frequency parameters.

[0055] In one embodiment, when the fluid state is non-turbulent, the control method further includes: Recycle the rubber balls, and shut down the online condensation cleaning device when the ball recovery rate reaches the preset ratio.

[0056] In this embodiment, when the fluid state is non-turbulent, the ball-launching machine and ball-launching pump in the condensation online cleaning device are turned off to avoid increased energy consumption caused by cleaning in a non-turbulent state, thus saving energy. At the same time, the rubber balls are recovered, and the condensation online cleaning device is turned off when the ball recovery rate reaches the preset ratio.

[0057] In one specific embodiment, the preset ratio is 90%, and the online condensation cleaning device is turned off when the ball collection rate reaches 90%.

[0058] In one specific embodiment, a counter is provided at the ball catcher to count the number of balls caught, thereby calculating the ball catch rate.

[0059] In one embodiment, when the fluid state is non-turbulent, the control method further includes: The online condensation cleaning device is activated for a preset duration at preset intervals.

[0060] In this embodiment, when the fluid is in a non-turbulent state, since the central air conditioning is still in operation, the online condenser cleaning device is activated for a preset duration at preset intervals, which can ensure the efficiency of the central air conditioning condenser system and improve the cooling effect.

[0061] In one specific embodiment, the preset time is 60 minutes and the preset duration is 10 minutes. When the fluid state is non-turbulent, since the central air conditioning is still in operation, the condenser online cleaning device is turned on for 10 minutes after 60 minutes.

[0062] This embodiment also provides a central air conditioning condensate online cleaning control device, which is used to implement the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that performs a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0063] The central air conditioning condensate online cleaning control device provided in this embodiment includes: The acquisition module is used to acquire fluid data; The judgment module is used to determine the fluid state based on fluid data. The execution module is used to turn on the online condensation cleaning device when the fluid is in a turbulent state, and to turn off the ball launcher and ball launch pump in the online condensation cleaning device when the fluid is in a non-turbulent state.

[0064] In this embodiment, because the water flow is parallel and orderly in a non-turbulent state, the heat transfer efficiency is low, the fluid shear force is small, and dirt easily settles, resulting in a very unsatisfactory cleaning effect. The object being cleaned may not be able to be pushed stably or may even get stuck. In a turbulent state, the fluid flow is chaotic and disordered, and the fluid and the object being cleaned generate strong eddy mixing, which can enhance heat transfer. The high shear force can suppress dirt, and the strong eddy can ensure that the object being cleaned has sufficient and random contact and collision with the pipe wall, resulting in the best cleaning effect. Therefore, an acquisition module, a judgment module, and an execution module are set up. The acquisition module acquires fluid data, and the judgment module judges the fluid state based on the fluid data. When the fluid state is turbulent, the execution module turns on the condensation online cleaning device to ensure the cleaning effect. When the fluid state is non-turbulent, the execution module turns off the ball launcher and ball launch pump in the condensation online cleaning device to avoid increased energy consumption caused by cleaning in a non-turbulent state, thus saving energy.

[0065] Further functional descriptions of the above modules are the same as those in the corresponding embodiments described above, and will not be repeated here.

[0066] In this embodiment, the control device is presented in the form of a functional unit. Here, a unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that execute one or more software or fixed programs, and / or other devices that can provide the above functions.

[0067] This invention also provides a computer device comprising: one or more processors, memory, and interfaces for connecting the components, including high-speed interfaces and low-speed interfaces. The components are interconnected via different buses and can be mounted on a common motherboard or otherwise installed as needed. The processor can process instructions executed within the computer device, including instructions stored in or on memory to display graphical information of a GUI on an external input / output device (such as a display device coupled to the interface). In some alternative embodiments, multiple processors and / or multiple buses can be used with multiple memories and multiple memory modules, if desired. Similarly, multiple computer devices can be connected, each providing some of the necessary operations (e.g., as a server array, a group of blade servers, or a multiprocessor system).

[0068] The processor can be a central processing unit, a network processor, or a combination thereof. The processor may further include hardware chips. These hardware chips can be application-specific integrated circuits (ASICs), programmable logic devices (PLDs), or combinations thereof. The programmable logic devices can be complex programmable logic devices (CLPs), field-programmable gate arrays (FPGAs), general-purpose array logic (GDAs), or any combination thereof.

[0069] The memory stores instructions executable by at least one processor to cause the at least one processor to perform the method shown in the above embodiments.

[0070] The memory may include a stored program area and a stored data area, wherein the stored program area may store the operating system and application programs required for at least one function; the stored data area may store data created based on the use of the computer device, etc. Furthermore, the memory may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some alternative embodiments, the memory may optionally include memory remotely located relative to the processor, which can be connected to the computer device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0071] The memory may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as flash memory, hard disk or solid-state drive; the memory may also include a combination of the above types of memory.

[0072] This invention also provides a computer-readable storage medium. The methods described above according to embodiments of the invention can be implemented in hardware or firmware, or implemented as computer code that can be recorded on a storage medium, or implemented as computer code downloaded via a network and originally stored on a remote storage medium or a non-transitory machine-readable storage medium and then stored on a local storage medium. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; further, the storage medium can also include combinations of the above types of memory. It is understood that computers, processors, microprocessor controllers, or programmable hardware include storage components capable of storing or receiving software or computer code, which, when accessed and executed by the computer, processor, or hardware, implements the methods shown in the above embodiments.

[0073] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by this application.

Claims

1. A method for online cleaning and control of central air conditioning condensate, characterized in that, include: Acquire fluid data; Determine the fluid state based on fluid data; When the fluid is in a turbulent state, turn on the online condensation cleaning device; When the fluid is in a non-turbulent state, shut down the ball launcher and ball launch pump in the online condenser cleaning device.

2. The online cleaning and control method for central air conditioning condensate according to claim 1, characterized in that, The acquisition of fluid data includes: Obtain the fluid velocity v and the fluid kinematic viscosity. ; According to Re=vd / Calculate the Reynolds number Re, where d is the pipe inner diameter; The step of determining the fluid state based on fluid data includes: When Re ≥ the first preset value, the fluid state is determined to be turbulent; when Re < the first preset value, the fluid state is determined to be non-turbulent.

3. The online cleaning and control method for central air conditioning condensate according to claim 2, characterized in that, The acquisition of fluid data also includes acquiring fluid temperature; Obtaining the kinematic viscosity of fluids This includes obtaining the kinematic viscosity of a fluid from a table based on its temperature. .

4. The online cleaning and control method for central air conditioning condensate according to claim 2, characterized in that, The non-turbulent state includes laminar flow and transitional flow. When Re ≤ the second preset value, the fluid state is determined to be laminar flow. When the second preset value < Re < the first preset value, the fluid state is determined to be transitional flow.

5. The online cleaning and control method for central air conditioning condensate according to claim 2, characterized in that, The acquisition of fluid data also includes: Obtain the operating frequency parameters of the cooling water pump motor.

6. The online cleaning and control method for central air conditioning condensate according to any one of claims 1 to 5, characterized in that, When the fluid state is non-turbulent, the control method further includes: Recycle the rubber balls, and shut down the online condensation cleaning device when the ball recovery rate reaches the preset ratio.

7. The online cleaning and control method for central air conditioning condensate according to any one of claims 1 to 5, characterized in that, When the fluid state is non-turbulent, the control method further includes: The online condensation cleaning device is activated for a preset duration at preset intervals.

8. A central air conditioning condensate online cleaning and control device, characterized in that, include: The acquisition module is used to acquire fluid data; The judgment module is used to determine the fluid state based on fluid data. The execution module is used to turn on the online condensation cleaning device when the fluid is in a turbulent state, and to turn off the ball launcher and ball launch pump in the online condensation cleaning device when the fluid is in a non-turbulent state.

9. A computer device, characterized in that, include: The system includes a memory and a processor, which are interconnected. The memory stores computer instructions, and the processor executes the computer instructions to perform the online cleaning control method for central air conditioning condensate as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing the computer to execute the central air conditioning condensate online cleaning control method according to any one of claims 1 to 7.

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