A diaphragm pump flow control method, system, intelligent terminal and storage medium

Abstract

The present application relates to a diaphragm pump flow control method, system, intelligent terminal and storage medium, belonging to the field of diaphragm pump technology, including obtaining a start trigger signal of the diaphragm pump; obtaining the required working state and historical working state of the diaphragm pump based on the start trigger signal; judging whether the required working state meets the requirements of the historical working state; if it meets, obtaining the historical frequency value of the diaphragm pump and defining the historical frequency value as the motor frequency value; if it does not meet, obtaining the liquid type and required flow value of the preset liquid; analyzing the liquid type and required flow value to determine the motor frequency value of the diaphragm pump; controlling the diaphragm pump to inhale and discharge the liquid according to the motor frequency value. The present application has the effect of improving the flow control efficiency of the diaphragm pump.

Description

Technical Field

[0001] The present application relates to the field of diaphragm pump technology, and in particular, to a diaphragm pump flow control method, system, intelligent terminal and storage medium. Background Art

[0002] A diaphragm pump is a special positive displacement pump that uses the reciprocating motion of one or more elastic diaphragms to transport fluids. Based on the back-and-forth movement of the diaphragm within the pump chamber, the volume of the pump chamber is changed, thereby achieving the purpose of sucking and discharging liquids or gases.

[0003] In related technologies, an electric diaphragm pump relies on a motor to drive the diaphragm to move back and forth within the pump chamber. After a person turns on the electric diaphragm pump, the frequency of the motor is adjusted according to the required flow rate to control the motor speed, and the flow rate of the electric diaphragm pump detected by the flow meter is viewed in real time. Then, the frequency of the motor is further finely adjusted based on the difference between the detected flow rate and the required flow rate until the reading of the flow meter reaches the required flow rate.

[0004] Regarding the above-mentioned related technologies, when a person uses an electric diaphragm pump to extract liquids, it is necessary to adjust the frequency of the motor in real time according to the difference between the detected flow rate of the electric diaphragm pump by the flow meter and the required flow rate, so as to adjust the rotational speed of the motor to make the flow rate of the electric diaphragm pump meet the flow rate requirement. As a result, the flow control efficiency of the diaphragm pump is low and there is still room for improvement. Summary of the Invention

[0005] In order to improve the flow control efficiency of the diaphragm pump, the present application provides a diaphragm pump flow control method, system, intelligent terminal and storage medium.

[0006] In a first aspect, the present application provides a diaphragm pump flow control method, adopting the following technical solution:

[0007] A diaphragm pump flow control method includes:

[0008] Obtain a start trigger signal of the diaphragm pump;

[0009] Based on the start trigger signal, obtain the required working state and historical working state of the diaphragm pump;

[0010] Judge whether the required working state meets the requirements of the historical working state;

[0011] If it meets, obtain the historical frequency value of the diaphragm pump and define the historical frequency value as the motor frequency value;

[0012] If it does not meet, obtain the liquid type and required flow rate value of the preset liquid;

[0013] Analyze the liquid type and required flow rate value to determine the motor frequency value of the diaphragm pump;

[0014] Control the diaphragm pump to inhale and discharge liquid according to the motor frequency value.

[0015] By adopting the above technical solution, after detecting the start trigger signal of the diaphragm pump, if it is determined that the required working state of the diaphragm pump is consistent with the historical working state, the historical frequency value is directly used as the motor frequency value, and there is no need for personnel to adjust the motor frequency again; if they are inconsistent, it indicates that the working environment or conditions of the diaphragm pump have changed. Therefore, the liquid type and the required flow value are detected, and then the motor frequency value is determined through analysis of the two, so that the diaphragm pump inhales and discharges the liquid according to the motor frequency value, thus meeting the flow requirements of personnel without manual adjustment by personnel, and further improving the flow control efficiency of the diaphragm pump.

[0016] Optionally, the steps of analyzing the liquid type and the required flow value to determine the motor frequency value of the diaphragm pump include:

[0017] Judge whether the liquid type meets the requirements of the preset direct matching type;

[0018] If not, determine the motor frequency value of the diaphragm pump according to the preset trial operation frequency determination method;

[0019] If so, determine the motor frequency value of the diaphragm pump according to the liquid type, the required flow value and the preset liquid flow frequency relationship.

[0020] By adopting the above technical solution, when it is determined that the liquid type meets the requirements of the direct matching type, it indicates that the motor frequency value corresponding to the liquid is stored in the database of the diaphragm pump. Therefore, the motor frequency value of the diaphragm pump is determined according to the liquid type, the required flow value and the liquid flow frequency relationship, thereby improving the convenience and efficiency of determining the motor frequency value.

[0021] Optionally, the steps of determining the motor frequency value of the diaphragm pump according to the preset trial operation frequency determination method include:

[0022] Control the diaphragm pump to perform trial operation inhalation and discharge of liquid according to the preset trial operation frequency value;

[0023] Obtain the trial operation detection flow value of the diaphragm pump;

[0024] Analyze the trial operation detection flow value, the trial operation frequency value and the preset pump parameter value to determine the pump efficiency value of the diaphragm pump;

[0025] Analyze the required flow value, the pump efficiency value and the pump parameter value to determine the motor frequency value of the diaphragm pump.

[0026] By adopting the above technical solution, the diaphragm pump is controlled to perform a trial operation of sucking and discharging the liquid at the trial operation frequency value, so as to obtain the corresponding trial operation detection flow value. Then, the pump efficiency value is calculated based on the trial operation detection flow value, the trial operation frequency value and the pump parameter value. After obtaining the pump efficiency value, the motor frequency value corresponding to the required flow value is calculated according to the required flow value, the pump efficiency value and the pump parameter value, thereby improving the convenience and efficiency of determining the motor frequency value.

[0027] Optionally, the steps of determining the motor frequency value of the diaphragm pump according to the liquid type, the required flow value and the preset liquid flow frequency relationship include:

[0028] Obtain the liquid viscosity detection value of the liquid;

[0029] Determine the liquid standard viscosity value according to the liquid type and the preset liquid viscosity relationship;

[0030] Judge whether the liquid viscosity detection value meets the requirements of the liquid standard viscosity value;

[0031] If not, analyze the liquid viscosity detection value to determine the motor frequency value of the diaphragm pump;

[0032] If it meets the requirements, determine the actual flow frequency relationship according to the liquid type, the liquid viscosity detection value and the liquid flow frequency relationship;

[0033] Determine the motor frequency value of the diaphragm pump according to the required flow value and the actual flow frequency relationship.

[0034] By adopting the above technical solution, the liquid viscosity detection value of the liquid is detected. If the liquid viscosity detection value meets the requirements of the liquid standard viscosity value, directly find the corresponding actual flow frequency relationship in the liquid flow frequency relationship according to the liquid type and the liquid viscosity detection value, and then find the corresponding motor frequency value in the actual flow frequency relationship according to the required flow value, thereby improving the convenience and efficiency of determining the motor frequency value.

[0035] Optionally, the steps of analyzing the liquid viscosity detection value to determine the motor frequency value of the diaphragm pump include:

[0036] Analyze the liquid viscosity detection value and the preset reference viscosity value to determine the liquid viscosity difference value;

[0037] Analyze the liquid viscosity difference value and the preset viscosity efficiency influence factor to determine the actual influence efficiency factor;

[0038] Analyze the actual influence efficiency factor and the preset reference efficiency value to determine the motor frequency value of the diaphragm pump.

[0039] By adopting the above technical solution, the actual influence efficiency factor of the current liquid viscosity on the pump efficiency is calculated according to the liquid viscosity difference value and the viscosity efficiency influence factor, and then the motor frequency value is calculated according to the actual influence efficiency factor and the reference efficiency value. Thus, when there is a liquid type in the database but no liquid viscosity, the motor frequency value can also be quickly calculated, thereby improving the efficiency of determining the motor frequency value.

[0040] Optionally, the steps of controlling the diaphragm pump to suck and discharge the liquid according to the motor frequency value include:

[0041] Controlling the diaphragm pump to suck and discharge the liquid at the motor frequency value, and obtaining the actual detected flow rate value of the diaphragm pump;

[0042] Judging whether the actual detected flow rate value meets the requirement of the required flow rate value;

[0043] If it meets the requirement, continue to control the diaphragm pump to suck and discharge the liquid at the motor frequency value, and continue to obtain the actual detected flow rate value of the diaphragm pump for cyclic judgment;

[0044] If it does not meet the requirement, adjust the motor frequency value until the actual detected flow rate value meets the requirement of the required flow rate value.

[0045] By adopting the above technical solution, controlling the diaphragm pump to suck and discharge the liquid at the motor frequency value, and detecting the actual detected flow rate value. When it is determined that the actual detected flow rate value does not meet the requirement of the required flow rate value, it indicates that the actual detected flow rate value is too large or too small. Therefore, the motor frequency value is adjusted until the actual detected flow rate value meets the requirement of the required flow rate value, thereby ensuring the stability of the diaphragm pump flow rate.

[0046] Optionally, the steps of adjusting the motor frequency value until the actual detected flow rate value meets the requirement of the required flow rate value include:

[0047] Analyze the actual detected flow rate value and the required flow rate value to determine the frequency value adjustment direction;

[0048] Adjust the motor frequency value according to the frequency value adjustment direction and the preset unit adjustment frequency value to generate the motor adjusted frequency value;

[0049] Control the diaphragm pump to suck and discharge the liquid at the motor adjusted frequency value, and obtain the adjusted detected flow rate value of the diaphragm pump;

[0050] Analyze the adjusted detected flow rate value, the actual detected flow rate value and the required flow rate value to determine the final adjusted frequency value;

[0051] Adjust the motor frequency value according to the frequency value adjustment direction and the final adjusted frequency value to generate the final actual frequency value;

[0052] Control the diaphragm pump to inhale and discharge the liquid at the final actual frequency value.

[0053] By adopting the above technical solution, after adjusting the motor frequency value according to the frequency value adjustment direction and the unit adjustment frequency value, the motor adjusted frequency value is obtained, so as to control the diaphragm pump to inhale and discharge the liquid at the motor adjusted frequency value, and detect the adjusted detection flow value, so as to determine the final adjusted frequency value according to the adjusted flow value, the actual detected flow value and the required flow value, adjust the motor frequency value with the final adjusted frequency value to generate the final actual frequency value, and control the diaphragm pump to inhale and discharge the liquid again, so that the flow rate of the diaphragm pump meets the requirements of the required flow rate during continuous adjustment, thereby improving the convenience of controlling the diaphragm pump.

[0054] In a second aspect, the present application provides a diaphragm pump flow control system, adopting the following technical solution:

[0055] A diaphragm pump flow control system includes:

[0056] An acquisition module, configured to acquire a start trigger signal, a required working state, a historical working state, a historical frequency value, a liquid type, and a required flow value;

[0057] A memory, configured to store a program of a diaphragm pump flow control method as described in any one of the above;

[0058] A processor, the program in the memory can be loaded and executed by the processor and implement a diaphragm pump flow control method as described in any one of the above.

[0059] By adopting the above technical solution, the processor loads and executes the program of a diaphragm pump flow control method stored in the memory, so that the acquisition module acquires a series of data related to the diaphragm pump flow control. Thus, after detecting the start trigger signal of the diaphragm pump, if it is determined that the required working state of the diaphragm pump is consistent with the historical working state, the historical frequency value is directly used as the motor frequency value, and no manual adjustment of the motor frequency is required by personnel; if they are inconsistent, it indicates that the working environment or conditions of the diaphragm pump have changed. Therefore, the liquid type and the required flow value are detected, and the motor frequency value is determined according to the analysis of the two, so that the diaphragm pump inhales and discharges the liquid at the motor frequency value, so that the flow rate requirement of personnel can be met without manual adjustment by personnel, thereby improving the flow control efficiency of the diaphragm pump.

[0060] In a third aspect, the present application provides an intelligent terminal, adopting the following technical solution:

[0061] An intelligent terminal includes a memory and a processor, and a computer program capable of being loaded and executed by the processor and implementing a diaphragm pump flow control method as described in any one of the above is stored on the memory.

[0062] By adopting the above technical solution, by operating the intelligent terminal, the processor loads and executes a computer program of a diaphragm pump flow control method stored in the memory. Thus, after detecting the start trigger signal of the diaphragm pump, if it is determined that the required working state of the diaphragm pump is consistent with the historical working state, the historical frequency value is directly used as the motor frequency value, and there is no need for personnel to adjust the motor frequency anymore; if they are inconsistent, it indicates that the working environment or conditions of the diaphragm pump have changed. Therefore, the liquid type and the required flow value are detected, and then the motor frequency value is determined through analysis of the two, so that the diaphragm pump inhales and discharges the liquid at the motor frequency value, thus meeting the flow demand of personnel without manual adjustment by personnel, and further improving the flow control efficiency of the diaphragm pump.

[0063] In a fourth aspect, the present application provides a computer storage medium, which can store corresponding programs and has the characteristic of facilitating the improvement of the flow control efficiency of the diaphragm pump. The technical solution is as follows:

[0064] A computer-readable storage medium stores a computer program that can be loaded and executed by a processor to perform any of the above diaphragm pump flow control methods.

[0065] By adopting the above technical solution, a computer program of a diaphragm pump flow control method is stored in the computer-readable storage medium, and the processor loads and executes the computer program stored in the storage medium. Thus, after detecting the start trigger signal of the diaphragm pump, if it is determined that the required working state of the diaphragm pump is consistent with the historical working state, the historical frequency value is directly used as the motor frequency value, and there is no need for personnel to adjust the motor frequency anymore; if they are inconsistent, it indicates that the working environment or conditions of the diaphragm pump have changed. Therefore, the liquid type and the required flow value are detected, and then the motor frequency value is determined through analysis of the two, so that the diaphragm pump inhales and discharges the liquid at the motor frequency value, thus meeting the flow demand of personnel without manual adjustment by personnel, and further improving the flow control efficiency of the diaphragm pump.

[0066] In summary, the present application includes at least one of the following beneficial technical effects:

[0067] After detecting the start trigger signal of the diaphragm pump, if it is determined that the required working state of the diaphragm pump is consistent with the historical working state, the historical frequency value is directly used as the motor frequency value, and there is no need for personnel to adjust the motor frequency anymore; if they are inconsistent, it indicates that the working environment or conditions of the diaphragm pump have changed. Therefore, the liquid type and the required flow value are detected, and then the motor frequency value is determined through analysis of the two, so that the diaphragm pump inhales and discharges the liquid at the motor frequency value, thus meeting the flow demand of personnel without manual adjustment by personnel, and further improving the flow control efficiency of the diaphragm pump;

[0068] When it is determined that the liquid type meets the requirements of the direct matching type, it indicates that the motor frequency value corresponding to the liquid is stored in the database of the diaphragm pump. Therefore, the motor frequency value of the diaphragm pump is determined according to the liquid type, the required flow rate value, and the liquid flow rate - frequency relationship, thereby improving the convenience and efficiency of determining the motor frequency value.

[0069] By controlling the diaphragm pump to perform trial - run suction and discharge of the liquid at the trial - run frequency value, the corresponding trial - run detected flow rate value is obtained. Then, according to the trial - run detected flow rate value, the trial - run frequency value, and the pump parameter value, the pump efficiency value is calculated. After obtaining the pump efficiency value, according to the required flow rate value, the pump efficiency value, and the pump parameter value, the motor frequency value corresponding to the required flow rate value is calculated, thereby improving the convenience and efficiency of determining the motor frequency value. Brief Description of the Drawings

[0070] Figure 1 is a flowchart of a diaphragm pump flow control method in an embodiment of the present application.

[0071] Figure 2 is a flowchart of the steps of analyzing the liquid type and the required flow rate value to determine the motor frequency value of the diaphragm pump in an embodiment of the present application.

[0072] Figure 3 is a flowchart of the steps of determining the motor frequency value of the diaphragm pump according to a preset trial - run frequency determination method in an embodiment of the present application.

[0073] Figure 4 is a flowchart of the steps of determining the motor frequency value of the diaphragm pump according to the liquid type, the required flow rate value, and a preset liquid flow rate - frequency relationship in an embodiment of the present application.

[0074] Figure 5 is a flowchart of the steps of analyzing the liquid viscosity detection value to determine the motor frequency value of the diaphragm pump in an embodiment of the present application.

[0075] Figure 6 is a flowchart of the steps of controlling the diaphragm pump to perform suction and discharge of the liquid according to the motor frequency value in an embodiment of the present application.

[0076] Figure 7 is a flowchart of the steps of adjusting the motor frequency value until the actually detected flow rate value meets the requirements of the required flow rate value in an embodiment of the present application. Detailed Description of the Embodiment

[0077] In order to make the purpose, technical solutions, and advantages of the present application clearer and more understandable, the following further details the present application in combination with the attached Figures 1-7 drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0078] An embodiment of the present application discloses a diaphragm pump flow control method. The diaphragm pump uses an electric diaphragm pump, and the processing terminal changes the motor frequency to control the change of the motor speed, so that the diaphragm pump realizes the output of different flows. After the processing terminal receives the start trigger signal of the diaphragm pump, it detects the required working state of the diaphragm pump and calls the historical working state. If the two are the same, it indicates that the working conditions of the diaphragm pump have not changed. Therefore, the historical frequency value is used as the motor frequency value. If they are different, it indicates that the working conditions of the diaphragm pump have changed. Therefore, the liquid type and the required flow value are detected, and the motor frequency value is analyzed according to the liquid type and the required flow value, so as to control the diaphragm pump to inhale and discharge the liquid according to the motor frequency value, without the need for personnel to continuously check the flow meter to adjust the motor frequency, thereby improving the efficiency of diaphragm pump flow control.

[0079] Refer to Figure 1 An embodiment of the present application discloses a diaphragm pump flow control method, including the following steps:

[0080] Step S100: Obtain the start trigger signal of the diaphragm pump.

[0081] Among them, the start trigger signal refers to the signal for starting the diaphragm pump, which is obtained by outputting a high-level signal representing the start trigger signal to the processing terminal when the operator presses the start button of the diaphragm pump.

[0082] Step S101: Obtain the required working state and the historical working state of the diaphragm pump based on the start trigger signal.

[0083] Among them, the required working state refers to the type and flow rate of the liquid that the operator needs the diaphragm pump to inhale and discharge, which is input by the operator on the visual control interface of the diaphragm pump and is called in response to the start trigger signal when the processing terminal receives the start trigger signal.

[0084] The historical working state refers to the type and flow rate of the liquid that the diaphragm pump last inhaled and discharged. After the operator inputs it into the processing terminal, it is backed up by the processing terminal.

[0085] Step S102: Determine whether the required working state meets the requirements of the historical working state.

[0086] Among them, the requirement of the historical working state means being consistent with the historical working state. The processing terminal judges whether the required working state is consistent with the historical working state, so as to determine whether the working task of the diaphragm pump has changed.

[0087] Step S1021: If it meets the requirements, obtain the historical frequency value of the diaphragm pump and define the historical frequency value as the motor frequency value.

[0088] Among them, if the processing terminal determines that the required working state is the same as the historical working state, it indicates that the working task of the diaphragm pump has not changed. Therefore, the historical frequency value of the diaphragm pump is called and defined as the motor frequency value to provide data support for subsequent control of the diaphragm pump to inhale and discharge liquid.

[0089] The historical frequency value refers to the motor frequency value when the diaphragm pump last worked, which is obtained by the processing terminal backing up the frequency value of the last work. The motor frequency value refers to the frequency for controlling the diaphragm pump to inhale and discharge liquid at the required flow rate. The motor frequency value in this step is obtained by the processing terminal calling the historical frequency value and defining it as the motor frequency value.

[0090] Step S1022: If not, obtain the liquid type and required flow rate value of the preset liquid.

[0091] Among them, if the processing terminal determines that the required working state is inconsistent with the historical working state, it indicates that the working task of the diaphragm pump has changed. Therefore, the liquid type and required flow rate value of the liquid are detected to provide data support for subsequent determination of the motor frequency value.

[0092] The liquid type refers to the type of liquid that the diaphragm pump inhales and discharges this time, such as water, medicine, etc. The required flow rate value refers to the flow rate value that the personnel need the diaphragm pump to discharge the liquid. Both are obtained by the processing terminal identifying the required working state input by the personnel.

[0093] Step S10221: Analyze the liquid type and required flow rate value to determine the motor frequency value of the diaphragm pump.

[0094] Among them, the motor frequency value in this step is the same as the motor frequency value in step S1021, which is determined by the processing terminal analyzing the liquid type and required flow rate value. The specific method refers to Figure 2 the steps.

[0095] Step S103: Control the diaphragm pump to inhale and discharge liquid according to the motor frequency value.

[0096] Among them, after the processing terminal determines the motor frequency value, the processing terminal controls the motor in the diaphragm pump to rotate according to the motor frequency value, so as to inhale and discharge the liquid at the required flow rate value, without the need for the personnel to continuously check the reading of the flow meter and manually adjust the frequency of the motor, thereby improving the convenience and efficiency of the diaphragm pump flow control.

[0097] Refer to Figure 2 , the steps of analyzing the liquid type and required flow rate value to determine the motor frequency value of the diaphragm pump include:

[0098] Step S200: Judge whether the liquid type meets the requirements of the preset direct matching type.

[0099] Among them, the direct matching type refers to the liquid type that can directly match the motor frequency value, which is input and stored in the processing terminal by the operator with the liquid type corresponding to the frequency existing in the database of the diaphragm pump. The requirements of the direct matching type refer to those existing in the direct matching type.

[0100] The processing terminal determines whether the liquid type exists in the direct matching type, so as to determine whether it is possible to directly match the frequency value for sucking in and discharging the liquid corresponding to the liquid type at the required flow rate.

[0101] Step S201: If not, determine the motor frequency value of the diaphragm pump according to the preset trial operation frequency determination method.

[0102] Among them, if the processing terminal determines that the liquid type does not exist in the direct matching type, it means that it is impossible to directly match the frequency value for sucking in and discharging the liquid corresponding to the liquid type at the required flow rate. Therefore, the motor frequency value of the diaphragm pump is determined according to the trial operation frequency determination method, and the specific method refers to Figure 3 the steps.

[0103] The trial operation frequency determination method refers to the method of determining the frequency value for sucking in and discharging the liquid corresponding to the liquid type at the required flow rate after controlling the diaphragm pump to perform a trial operation, which is stored in the processing terminal by the operator. The specific method refers to Figure 3 the steps.

[0104] Step S202: If it meets the requirements, determine the motor frequency value of the diaphragm pump according to the liquid type, the required flow rate value, and the preset liquid flow rate - frequency relationship.

[0105] Among them, if the processing terminal determines that the liquid type exists in the direct matching type, it means that it is possible to directly match the frequency value for sucking in and discharging the liquid corresponding to the liquid type at the required flow rate. Therefore, the motor frequency value of the diaphragm pump is determined according to the liquid type, the required flow rate value, and the liquid flow rate - frequency relationship, and the specific method refers to Figure 4 the steps.

[0106] The liquid flow rate - frequency relationship refers to the corresponding relationship among the liquid type, viscosity, and flow rate - frequency relationship. The operator controls the diaphragm pump to suck in and discharge different liquid types with different viscosities, records the frequency and flow rate, and then forms a mapping table after corresponding the liquid type, viscosity, and flow rate - frequency relationship one by one.

[0107] Referring to Figure 3 , the steps of determining the motor frequency value of the diaphragm pump according to the preset trial operation frequency determination method include:

[0108] Step S300: Control the diaphragm pump to perform a trial operation of sucking in and discharging the liquid according to the preset trial operation frequency value.

[0109] Among them, the processing terminal controls the operation of the motor in the diaphragm pump according to the trial operation frequency value, so as to perform trial operation suction and discharge of the liquid, providing basic support for subsequent determination of the pump efficiency value of the diaphragm pump for the liquid.

[0110] The trial operation frequency value refers to the motor frequency value when the diaphragm pump performs trial operation suction and discharge of the liquid, and the specific value is determined by the operator according to the actual situation.

[0111] Step S301: Obtain the trial operation detection flow value of the diaphragm pump.

[0112] Among them, the trial operation detection flow value refers to the flow of the diaphragm pump detected when the diaphragm pump performs trial operation suction and discharge of the liquid, which is detected by a flow meter and sent to the processing terminal.

[0113] Step S302: Analyze the trial operation detection flow value, the trial operation frequency value, and the preset pump parameter value to determine the pump efficiency value of the diaphragm pump.

[0114] Among them, after determining the trial operation detection flow value, the processing terminal analyzes the trial operation detection flow value, the trial operation frequency value, and the pump parameter value to determine the pump efficiency value of the diaphragm pump, providing data support for subsequent determination of the motor frequency value.

[0115] The pump parameter value refers to the volume of a single movement of the diaphragm in the diaphragm pump, which is determined by the operator according to the actual situation of the diaphragm pump and input and stored in the processing terminal. The pump efficiency value refers to the efficiency value of the diaphragm pump for sucking and discharging this type of liquid. The processing terminal calculates the product of the trial operation frequency value and the pump parameter value, and then calculates the quotient between the trial operation detection flow value and the product to obtain the pump efficiency value.

[0116] Step S303: Analyze the required flow value, the pump efficiency value, and the pump parameter value to determine the motor frequency value of the diaphragm pump.

[0117] Among them, the motor frequency value in this step is the same as the motor frequency value in step S10221, which is obtained by the processing terminal calculating the product of the pump efficiency value and the pump parameter value, and then calculating the quotient between the required flow value and the product.

[0118] Refer to Figure 4 , the steps for determining the motor frequency value of the diaphragm pump according to the liquid type, the required flow value, and the preset liquid flow frequency relationship include:

[0119] Step S400: Obtain the liquid viscosity detection value of the liquid.

[0120] Among them, the liquid viscosity detection value refers to the viscosity value of the liquid, which is detected by an on-line viscometer for the viscosity of the liquid and sent to the processing terminal.

[0121] Step S401: Determine the standard viscosity value of the liquid according to the liquid type and the preset liquid viscosity relationship.

[0122] Among them, the liquid viscosity relationship refers to the corresponding relationship between the liquid type and the viscosity value. After the operator corresponds the liquid with the determined frequency and flow rate to the viscosity one by one, a mapping table is formed.

[0123] The standard viscosity value of the liquid refers to the viscosity value at which the liquid can directly match the frequency value, which is obtained by the processing terminal looking up in the mapping table corresponding to the liquid viscosity relationship according to the liquid type.

[0124] Step S402: Determine whether the detected value of the liquid viscosity meets the requirements of the standard viscosity value of the liquid.

[0125] Among them, the requirements of the standard viscosity value of the liquid mean that it exists in the standard viscosity value of the liquid. The processing terminal determines whether the detected value of the liquid viscosity exists in the standard viscosity value of the liquid, so as to determine whether the liquid with this viscosity can directly match the frequency value.

[0126] Step S4021: If not, analyze the detected value of the liquid viscosity to determine the motor frequency value of the diaphragm pump.

[0127] Among them, if the processing terminal determines that the detected value of the liquid viscosity does not exist in the standard viscosity value of the liquid, it means that the relationship between the flow rate and frequency of the liquid with this viscosity has not been recorded, so the frequency value of the liquid with this viscosity cannot be directly matched. Therefore, after analyzing the detected value of the liquid viscosity, the motor frequency value of the diaphragm pump is determined. For the specific method, refer to Figure 5 the steps.

[0128] Step S4022: If it meets the requirements, determine the actual flow rate - frequency relationship according to the liquid type, the detected value of the liquid viscosity, and the liquid flow rate - frequency relationship.

[0129] Among them, if the processing terminal determines that the detected value of the liquid viscosity exists in the standard viscosity value of the liquid, it means that the relationship between the flow rate and frequency of the liquid with this viscosity is recorded in the processing terminal. Therefore, the actual flow rate - frequency relationship is determined according to the liquid type, the detected value of the liquid viscosity, and the liquid flow rate - frequency relationship, providing data support for determining the motor frequency value in the follow - up.

[0130] The actual flow rate - frequency relationship refers to the corresponding relationship between the flow rate of the liquid with this viscosity and the motor frequency, which is obtained by the processing terminal looking up in the liquid flow rate - frequency relationship according to the liquid type and the detected value of the liquid viscosity. The actual flow rate - frequency relationship itself is obtained by the operator detecting the corresponding flow rate values when controlling the diaphragm pump to inhale and discharge the liquid at different frequencies, and corresponding the frequency with the flow rate value one by one to form a mapping table.

[0131] Step S403: Determine the motor frequency value of the diaphragm pump according to the required flow value and the actual flow frequency relationship.

[0132] Among them, the motor frequency value in this step is the same as the motor frequency value in step S10221, and is obtained by the processing terminal looking up in the mapping table corresponding to the actual flow frequency relationship according to the required flow value.

[0133] Refer to Figure 5 , the steps of analyzing the liquid viscosity detection value to determine the motor frequency value of the diaphragm pump include:

[0134] Step S500: Analyze the liquid viscosity detection value and the preset reference viscosity value to determine the liquid viscosity difference value.

[0135] Among them, the reference viscosity value refers to the liquid viscosity when the efficiency value of the diaphragm pump is the highest. Specifically, the operator controls the diaphragm pump to inhale and discharge liquids with different viscosities, calculates the efficiency value, and selects the viscosity with the largest efficiency value as the reference viscosity value.

[0136] The liquid viscosity difference value refers to the difference between the current liquid viscosity and the reference viscosity, and is obtained by the processing terminal calculating the difference between the liquid viscosity detection value and the reference viscosity value.

[0137] Step S501: Analyze the liquid viscosity difference value and the preset viscosity efficiency influence factor to determine the actual influence efficiency factor.

[0138] Among them, the viscosity efficiency influence factor refers to the degree of influence of viscosity change on the pump efficiency, which is a constant and is determined by the operator according to the design of the diaphragm pump. The actual influence efficiency factor refers to the degree of influence of the liquid with the current viscosity on the pump efficiency. The processing terminal calculates the opposite of the product of the liquid viscosity difference value and the viscosity efficiency influence factor, and then calculates the actual influence efficiency factor with the base of the natural logarithm e and the opposite of the product as the exponent.

[0139] Step S502: Analyze the actual influence efficiency factor and the preset reference efficiency value to determine the motor frequency value of the diaphragm pump.

[0140] Among them, the motor frequency value in this step is the same as the motor frequency value in step S10221. The processing terminal calculates the product of the actual influence efficiency factor and the reference efficiency value to obtain the actual efficiency value, then calculates the product of the actual efficiency value and the pump parameter value, and finally calculates the quotient of the required flow value and the product to obtain the motor frequency value.

[0141] Refer to Figure 6 , the steps of controlling the diaphragm pump to inhale and discharge liquids according to the motor frequency value include:

[0142] Step S600: Control the diaphragm pump to inhale and discharge the liquid at the motor frequency value, and obtain the actual detected flow rate value of the diaphragm pump.

[0143] Among them, the processing terminal controls the motor in the diaphragm pump to rotate according to the motor frequency value, so that the diaphragm pump inhales and discharges the liquid, and detects the actual detected flow rate value of the diaphragm pump, providing data support for determining whether the flow control of the diaphragm pump meets the user's requirements subsequently.

[0144] The actual detected flow rate value refers to the flow rate of the diaphragm pump when the diaphragm pump inhales and discharges the liquid at the motor frequency value, which is detected by a flow meter and sent to the processing terminal.

[0145] Step S601: Determine whether the actual detected flow rate value meets the requirements of the required flow rate value.

[0146] Among them, the requirement of the required flow rate value means being equal to the required flow rate value. The processing terminal determines whether the actual detected flow rate value is equal to the required flow rate value, so as to determine whether the diaphragm pump controlled by the motor frequency value meets the user's flow rate requirements.

[0147] Step S6011: If it meets the requirements, continue to control the diaphragm pump to inhale and discharge the liquid at the motor frequency value, and continue to obtain the actual detected flow rate value of the diaphragm pump for cyclic judgment.

[0148] Among them, if the processing terminal determines that the actual detected flow rate value is equal to the required flow rate value, it indicates that the diaphragm pump controlled by the motor frequency value meets the user's flow rate requirements. Therefore, continue to control the diaphragm pump to inhale and discharge the liquid at the motor frequency value, and continue to detect the actual detected flow rate value of the diaphragm pump, so as to continuously monitor the flow rate change of the diaphragm pump.

[0149] Step S6012: If it does not meet the requirements, adjust the motor frequency value until the actual detected flow rate value meets the requirements of the required flow rate value.

[0150] Among them, if the processing terminal determines that the actual detected flow rate value is not equal to the required flow rate value, it indicates that the diaphragm pump controlled by the motor frequency value cannot meet the user's flow rate requirements. Therefore, continue to adjust the motor frequency value until the actual detected flow rate value is equal to the required flow rate value. The specific method refers to Figure 7 the steps.

[0151] Refer to Figure 7 , the steps of adjusting the motor frequency value until the actual detected flow rate value meets the requirements of the required flow rate value include:

[0152] Step S700: Analyze the actual detected flow rate value and the required flow rate value to determine the direction of frequency value adjustment.

[0153] Among them, the frequency value adjustment direction refers to the adjustment direction of the motor frequency value, including increasing or decreasing. The processing terminal calculates the flow difference by subtracting the actual detected flow value from the required flow value. If the flow difference is positive, the frequency is decreased; if the flow difference is negative, the frequency is increased.

[0154] Step S701: Adjust the motor frequency value according to the frequency value adjustment direction and the preset unit adjustment frequency value to generate the motor adjusted frequency value.

[0155] Among them, after the processing terminal obtains the frequency value adjustment direction, the processing terminal adjusts the unit adjustment frequency value in the direction of the frequency value adjustment on the basis of the motor frequency to obtain the motor adjusted frequency value, providing data support for determining the final frequency value.

[0156] The unit adjustment frequency value refers to the frequency value of a single adjustment, and the specific value is determined by the operator according to the actual situation. The motor adjusted frequency value refers to the motor frequency value after one adjustment, which is obtained by the processing terminal adjusting the unit adjustment frequency value in the direction of the frequency value adjustment on the basis of the motor frequency.

[0157] Step S702: Control the diaphragm pump to inhale and discharge the liquid at the motor adjusted frequency value, and obtain the adjusted detection flow value of the diaphragm pump.

[0158] Among them, after the processing terminal obtains the motor adjusted frequency value, the processing terminal controls the motor in the diaphragm pump to rotate according to the motor adjusted frequency value, so that the diaphragm pump inhales and discharges the liquid, and detects the adjusted detection flow value at this time.

[0159] The adjusted detection flow value refers to the flow rate of the diaphragm pump after the frequency adjustment, which is detected by the flow meter and sent to the processing terminal to obtain.

[0160] Step S703: Analyze the adjusted detection flow value, the actual detected flow value and the required flow value to determine the final adjusted frequency value.

[0161] Among them, the final adjusted frequency value refers to the frequency value that needs to be adjusted for the diaphragm pump flow adjustment value to meet the required flow. The processing terminal calculates the difference between the actual detected flow value and the required flow value, then calculates the quotient of the difference and the adjusted detection flow value to obtain the frequency adjustment times, and finally calculates the product of the frequency adjustment times and the unit adjustment frequency value to obtain the final adjusted frequency value.

[0162] Step S704: Adjust the motor frequency value according to the frequency value adjustment direction and the final adjusted frequency value to generate the final actual frequency value.

[0163] Among them, the final actual frequency value refers to the frequency for finally controlling the diaphragm pump to inhale and discharge the liquid, which is obtained by the processing terminal adjusting the final adjusted frequency value in the direction of the frequency value adjustment on the basis of the motor frequency value.

[0164] Step S705: Control the diaphragm pump to inhale and discharge the liquid at the final actual frequency value.

[0165] After the processing terminal obtains the final actual frequency value, the processing terminal controls the motor in the diaphragm pump to rotate according to the final actual frequency value, so that the diaphragm pump inhales and discharges the liquid, and makes the flow rate of the diaphragm pump reach the required flow rate during the cyclic adjustment process.

[0166] Based on the same inventive concept, an embodiment of the present application provides a diaphragm pump flow control system, including:

[0167] An acquisition module, configured to acquire a start trigger signal, a required working state, a historical working state, a historical frequency value, a liquid type, a required flow rate value, a trial operation detection flow rate value, a liquid viscosity detection value, an actual detection flow rate value, and an adjustment detection flow rate value;

[0168] A memory, configured to store a program of a diaphragm pump flow control method;

[0169] A processor, the program in the memory can be loaded and executed by the processor and implement a diaphragm pump flow control method.

[0170] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, only the above division of each functional module is used as an example. In actual applications, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and will not be described in detail here.

[0171] An embodiment of the present application provides a computer-readable storage medium, storing a computer program that can be loaded and executed by a processor and implement a diaphragm pump flow control method.

[0172] Computer storage media include, for example: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0173] Based on the same inventive concept, an embodiment of the present application provides an intelligent terminal, including a memory and a processor, and a computer program that can be loaded and executed by the processor and implement a diaphragm pump flow control method is stored on the memory.

[0174] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is used as an example. In actual applications, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. For the specific working processes of the systems, devices, and units described above, reference can be made to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

[0175] The above are all preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Any feature disclosed in this specification (including the abstract and drawings), unless specifically described, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically described, each feature is only an example of a series of equivalent or similar features.

Claims

1. A diaphragm pump flow control method, characterized in that: include: Obtaining a start trigger signal of a diaphragm pump; Obtain the required working state and historical working state of the diaphragm pump based on the start trigger signal; Determine whether the required working status meets the requirements of the historical working status; If it is true, the historical frequency value of the diaphragm pump is obtained, and the historical frequency value is defined as the motor frequency value; If not, obtain the liquid type and required flow value of the preset liquid; Analyze the liquid type and required flow value to determine the motor frequency value of the diaphragm pump; The diaphragm pump is controlled to suck and discharge the liquid according to the motor frequency value; The steps to analyze the liquid type and required flow value to determine the motor frequency value for the diaphragm pump include: Determine whether the liquid type meets the requirements of the preset direct matching type; If it does not meet the requirements, the motor frequency value of the diaphragm pump is determined according to the preset trial operation frequency determination method; If it meets the requirements, the motor frequency value of the diaphragm pump is determined according to the liquid type, the required flow value and the preset liquid flow frequency relationship; The steps of determining the motor frequency value of the diaphragm pump according to the liquid type, the required flow value and the preset liquid flow frequency relationship include: Obtaining a liquid viscosity detection value of a liquid; Determine the standard viscosity value of the liquid according to the liquid type and the preset liquid viscosity relationship; Determine whether the liquid viscosity test value meets the requirements of the liquid standard viscosity value; If it does not meet the requirements, the liquid viscosity test value is analyzed to determine the motor frequency value of the diaphragm pump; If it is in compliance, the actual flow-frequency relationship is determined based on the liquid type, the liquid viscosity test value and the liquid flow-frequency relationship; Determine the motor frequency value of the diaphragm pump based on the relationship between the required flow value and the actual flow frequency; The steps of analyzing the liquid viscosity test value to determine the motor frequency value of the diaphragm pump include: Analyze the liquid viscosity test value and the preset reference viscosity value to determine the liquid viscosity difference value; Analyze the difference in liquid viscosity and the preset viscosity efficiency influencing factors to determine the actual influencing efficiency factors; The actual influencing efficiency factor and the preset reference efficiency value are analyzed to determine the motor frequency value of the diaphragm pump.

2. A diaphragm pump flow control method according to claim 1, characterized in that: The steps of determining the motor frequency value of the diaphragm pump according to the preset trial operation frequency determination method include: According to the preset test run frequency value, the diaphragm pump is controlled to perform test run suction and discharge of the liquid; Obtain the test flow value of the diaphragm pump during trial operation; Analyze the test flow rate value, test frequency value and preset pump parameter value during the test run to determine the pump efficiency value of the diaphragm pump; The required flow value, pump efficiency value and pump parameter value are analyzed to determine the motor frequency value of the diaphragm pump.

3. A diaphragm pump flow control method according to claim 1, characterized in that: The steps of controlling the diaphragm pump to suck and discharge liquid according to the motor frequency value include: Control the diaphragm pump to suck and discharge the liquid according to the motor frequency value, and obtain the actual detection flow value of the diaphragm pump; Determine whether the actual detected flow value meets the requirements of the required flow value; If it meets the requirements, the diaphragm pump is continuously controlled to suck and discharge the liquid at the motor frequency value, and the actual detection flow value of the diaphragm pump is continuously obtained for cyclic judgment; If it does not meet the requirements, the motor frequency value is adjusted until the actual detected flow value meets the required flow value.

4. A diaphragm pump flow control method according to claim 3, characterized in that: The steps of adjusting the motor frequency value until the actual detected flow value meets the required flow value include: Analyze the actual detected flow value and the required flow value to determine the frequency value adjustment direction; The motor frequency value is adjusted according to the frequency value adjustment direction and the preset unit adjustment frequency value to generate a motor adjustment frequency value; Control the diaphragm pump to suck and discharge the liquid at the motor adjustment frequency value, and obtain the adjustment detection flow value of the diaphragm pump; Analyze the adjustment detection flow value, actual detection flow value and demand flow value to determine the final adjustment frequency value; The motor frequency value is adjusted according to the frequency value adjustment direction and the final adjustment frequency value to generate a final actual frequency value; Control the diaphragm pump to suck and discharge the liquid at the final actual frequency value.

5. A diaphragm pump flow control system, characterized in that: include: An acquisition module, used to acquire a start trigger signal, a required working status, a historical working status, a historical frequency value, a liquid type, and a required flow value; A memory for storing a program of a diaphragm pump flow control method according to any one of claims 1 to 4; The program in the memory can be loaded and executed by the processor to implement a diaphragm pump flow control method as claimed in any one of claims 1 to 4.

6. An intelligent terminal, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program which can be loaded by the processor and executes a diaphragm pump flow control method as claimed in any one of claims 1 to 4.

7. A computer-readable storage medium, characterized in that: The device stores a computer program which can be loaded by a processor and executes a diaphragm pump flow control method according to any one of claims 1 to 4.

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