Diaphragm pump flow control method and system, intelligent terminal and storage medium

Abstract

The invention relates to a diaphragm pump flow control method and system, an intelligent terminal and a storage medium, and relates to the technical field of diaphragm pumps. Acquiring a required working state and a historical working state of the diaphragm pump based on the starting trigger signal; judging whether the required working state meets the requirement of a historical working state or not; if yes, acquiring a historical frequency value of the diaphragm pump, and defining the historical frequency value as a motor frequency value; if not, the liquid type and the required flow value of the preset liquid are obtained; analyzing the liquid type and the required flow value to determine a motor frequency value of the diaphragm pump; and controlling the diaphragm pump to suck and discharge the liquid according to the motor frequency value. The diaphragm pump 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 type of positive displacement pump that uses the reciprocating motion of one or more elastic diaphragms to transport fluids. The diaphragms move back and forth in the pump chamber, thereby changing the volume of the pump chamber to achieve the purpose of sucking in and discharging liquids or gases.

[0003] In the related technology, the electric diaphragm pump relies on an electric motor to drive the diaphragm to move back and forth in the pump chamber. After the personnel turns on the electric diaphragm pump, they adjust the frequency of the motor according to the required flow rate to control the motor speed, and check the flow rate of the electric diaphragm pump detected by the flow meter in real time. Then, based on the gap between the detected flow rate and the required flow rate, they continue to fine-tune the frequency of the motor until the flow meter reading reaches the required flow rate.

[0004] With respect to the above-mentioned related technologies, when personnel use an electric diaphragm pump to extract liquid, they need to adjust the frequency of the motor in real time according to the difference between the flow rate detected by the flow meter and the required flow rate of the electric diaphragm pump, thereby adjusting the speed of the motor so that the flow rate of the electric diaphragm pump meets the flow rate demand, resulting in low flow control efficiency of the diaphragm pump, and there is room for improvement. Summary of the invention

[0005] In order to improve the flow control efficiency of a 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, which adopts the following technical solution: A diaphragm pump flow control method, comprising: 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.

[0007] 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; if it is inconsistent, it indicates that the working environment or conditions of the diaphragm pump have changed, so the liquid type and the required flow value are detected, and the motor frequency value is determined based on the analysis of the two, so that the diaphragm pump sucks and discharges the liquid at the motor frequency value, so that the flow requirements of personnel can be met without manual adjustment by personnel, thereby improving the flow control efficiency of the diaphragm pump.

[0008] Optionally, the step of analyzing the liquid type and the required flow value to determine the motor frequency value of the diaphragm pump includes: 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.

[0009] 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.

[0010] Optionally, the step of determining the motor frequency value of the diaphragm pump according to a preset trial operation frequency determination method includes: 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 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.

[0011] By adopting the above technical scheme, the diaphragm pump is controlled to perform trial operation suction and discharge of liquid at the trial operation frequency value, so as to obtain the corresponding trial operation detection flow value, and 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 demand flow value is calculated based on the demand flow value, the pump efficiency value and the pump parameter value, thereby improving the convenience and efficiency of determining the motor frequency value.

[0012] Optionally, the step 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 includes: 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; The motor frequency value of the diaphragm pump is determined based on the relationship between the required flow value and the actual flow frequency.

[0013] By adopting the above technical scheme, 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, the corresponding actual flow frequency relationship is directly found in the liquid flow frequency relationship according to the liquid type and the liquid viscosity detection value, and then the corresponding motor frequency value is found in the actual flow frequency relationship according to the required flow value, thereby improving the convenience and efficiency of determining the motor frequency value.

[0014] Optionally, the step of analyzing the liquid viscosity detection value to determine the motor frequency value of the diaphragm pump includes: 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.

[0015] 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. Therefore, when there is a liquid type but no liquid viscosity in the database, the motor frequency value can also be quickly calculated, thereby improving the efficiency of determining the motor frequency value.

[0016] Optionally, the step of controlling the diaphragm pump to suck and discharge the liquid according to the motor frequency value includes: 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.

[0017] By adopting the above technical solution, the diaphragm pump is controlled to suck and discharge the liquid according to the motor frequency value, and the actual detected flow value is detected. When it is determined that the actual detected flow value does not meet the requirement of the required flow value, it indicates that the actual detected flow value is larger or smaller. Therefore, the motor frequency value is adjusted until the actual detected flow value meets the requirement of the required flow value, thereby ensuring the stability of the diaphragm pump flow.

[0018] Optionally, the step of adjusting the motor frequency value until the actual detected flow value meets the requirement of the required flow value includes: 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.

[0019] By adopting the above technical scheme, the motor frequency value is adjusted according to the frequency value adjustment direction and the unit adjustment frequency value to obtain the motor adjustment frequency value, so that the motor adjustment frequency value is used to control the diaphragm pump to suck and discharge the liquid, and the adjustment detection flow value is detected, so as to determine the final adjustment frequency value according to the adjustment flow value, the actual detection flow value and the required flow value, and the motor frequency value is adjusted with the final adjustment frequency value to generate the final actual frequency value, and the diaphragm pump is controlled again to suck and discharge the liquid, so that the flow of the diaphragm pump meets the requirement of the required flow in the continuous adjustment, thereby improving the convenience of diaphragm pump control.

[0020] In a second aspect, the present application provides a diaphragm pump flow control system, which adopts the following technical solution: A diaphragm pump flow control system, comprising: 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 as described in any one of the above items; The program in the processor memory can be loaded and executed by the processor to implement a diaphragm pump flow control method as described in any one of the above items.

[0021] By adopting the above technical solution, the processor loads and executes a program of a diaphragm pump flow control method stored in the memory, so that the acquisition module obtains a series of data related to the diaphragm pump flow control, so that 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; if it is inconsistent, it indicates that the working environment or conditions of the diaphragm pump have changed, so the liquid type and the required flow value are detected, and the motor frequency value is determined after analyzing the two, so that the diaphragm pump inhales and discharges the liquid at the motor frequency value, so that the flow requirements of personnel can be met without manual adjustment by personnel, thereby improving the flow control efficiency of the diaphragm pump.

[0022] In a third aspect, the present application provides a smart terminal, which adopts the following technical solution: An intelligent terminal 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 described in any one of the above items.

[0023] 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, so that 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; if it is inconsistent, it indicates that the working environment or conditions of the diaphragm pump have changed, so the liquid type and the required flow value are detected, and the motor frequency value is determined after analyzing the two, so that the diaphragm pump sucks and discharges the liquid at the motor frequency value, so that the flow requirements of personnel can be met without manual adjustment by personnel, thereby improving the flow control efficiency of the diaphragm pump.

[0024] In a fourth aspect, the present application provides a computer storage medium capable of storing a corresponding program, which is convenient for improving the flow control efficiency of a diaphragm pump, and adopts the following technical solution: A computer-readable storage medium stores a computer program that can be loaded by a processor and execute any of the above-mentioned diaphragm pump flow control methods.

[0025] By adopting the above technical scheme, a computer program of a diaphragm pump flow control method is stored in a computer-readable storage medium, so that the processor loads and executes the computer program stored in the storage medium, so that 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; if it is inconsistent, it indicates that the working environment or conditions of the diaphragm pump have changed, so the liquid type and the required flow value are detected, and the motor frequency value is determined after analyzing the two, so that the diaphragm pump sucks and discharges the liquid at the motor frequency value, so that the flow requirements of personnel can be met without manual adjustment by personnel, thereby improving the flow control efficiency of the diaphragm pump.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 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 the personnel do not need to adjust the motor frequency; if they are inconsistent, it indicates that the working environment or conditions of the diaphragm pump have changed, so the liquid type and the required flow value are detected, and the motor frequency value is determined based on the analysis of the two, so that the diaphragm pump sucks and discharges the liquid at the motor frequency value, so that the flow demand of the personnel can be met without manual adjustment by the personnel, thereby improving the flow control efficiency of the diaphragm pump; 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; The diaphragm pump is controlled to perform trial operation suction and discharge of liquid at the trial operation frequency value, thereby obtaining the corresponding trial operation detection flow value, and 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 demand flow value is calculated based on the demand flow value, the pump efficiency value and the pump parameter value, thereby improving the convenience and efficiency of determining the motor frequency value. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a flow chart of a diaphragm pump flow control method in an embodiment of the present application.

[0028] Figure 2 It is a flow chart of the steps of analyzing the liquid type and the required flow value to determine the motor frequency value of the diaphragm pump in an embodiment of the present application.

[0029] Figure 3It is a flow chart of the steps of determining the motor frequency value of the diaphragm pump according to a preset trial operation frequency determination method in an embodiment of the present application.

[0030] Figure 4 It is a flow chart of 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 in the embodiment of the present application.

[0031] Figure 5 It is a flow chart 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.

[0032] Figure 6 It is a flow chart of the steps of controlling the diaphragm pump to suck and discharge liquid according to the motor frequency value in an embodiment of the present application.

[0033] Figure 7 It is a flowchart of the steps of adjusting the motor frequency value until the actual detected flow value meets the requirements of the required flow value in an embodiment of the present application. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of this application more clear, the following Figure 1-Figure 7 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.

[0035] An embodiment of the present application discloses a diaphragm pump flow control method, wherein the diaphragm pump adopts an electric diaphragm pump, and the diaphragm pump changes the motor frequency by the processing terminal to control the change of the motor speed, so that the diaphragm pump can output different flow rates. After the processing terminal receives the start trigger signal of the diaphragm pump, the required working state of the diaphragm pump is detected, and the historical working state is called. If the two are the same, it indicates that the working condition of the diaphragm pump has not changed, so the historical frequency value is used as the motor frequency value. If they are different, it indicates that the working condition of the diaphragm pump has changed, so 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 suck and discharge the liquid according to the motor frequency value, and there is no need for personnel to constantly check the flow meter to adjust the frequency of the motor, thereby improving the efficiency of the diaphragm pump flow control.

[0036] Reference Figure 1 The present application discloses a diaphragm pump flow control method, comprising the following steps: Step S100: obtaining a start trigger signal of a diaphragm pump.

[0037] The start trigger signal refers to a signal for starting the diaphragm pump. When a person presses the power button of the diaphragm pump, a high-level signal representing the start trigger signal is output to the processing terminal.

[0038] Step S101: acquiring the required working state and the historical working state of the diaphragm pump based on the start trigger signal.

[0039] Among them, the demand working state refers to the type and flow rate of liquid that the personnel need the diaphragm pump to suck and discharge, which is input by the operator on the visual control interface of the diaphragm pump and called in response to the start trigger signal when the processing terminal receives the start trigger signal.

[0040] The historical working status refers to the type and flow rate of the liquid sucked and discharged by the diaphragm pump last time, which is backed up by the processing terminal after the operator enters it into the processing terminal.

[0041] Step S102: Determine whether the required working state meets the requirements of the historical working state.

[0042] The requirement of the historical working state refers to being consistent with the historical working state. The processing terminal determines whether the required working state is consistent with the historical working state, thereby determining whether the working task of the diaphragm pump has changed.

[0043] Step S1021: If it is in compliance, the historical frequency value of the diaphragm pump is obtained, and the historical frequency value is defined as the motor frequency value.

[0044] Among them, if the processing terminal determines that the required working state is consistent with the historical working state, it means that the working task of the diaphragm pump has not changed. Therefore, the historical frequency value of the diaphragm pump is called, and the historical frequency value is defined as the motor frequency value to provide data support for the subsequent control of the diaphragm pump to suck and discharge liquid.

[0045] The historical frequency value refers to the motor frequency value of the diaphragm pump's last operation, which is obtained by backing up the frequency value of the last operation by the processing terminal. The motor frequency value refers to the frequency at which the diaphragm pump is controlled to inhale and discharge the 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 the historical frequency value as the motor frequency value.

[0046] Step S1022: If not, obtain the liquid type and required flow value of the preset liquid.

[0047] Among them, if the processing terminal determines that the required working state is inconsistent with the historical working state, it means that the working task of the diaphragm pump has changed, so the liquid type and required flow value of the liquid are detected, and the motor frequency value is subsequently determined to provide data support.

[0048] The liquid type refers to the type of liquid that the diaphragm pump inhales and discharges, such as water, medicine, etc. The demand flow value refers to the flow value that personnel require the diaphragm pump to discharge the liquid. Both are obtained by the processing terminal identifying the demand working status input by the personnel.

[0049] Step S10221: Analyze the liquid type and required flow value to determine the motor frequency value of the diaphragm pump.

[0050] The motor frequency value in this step is consistent with the motor frequency value in step S1021, and is determined by the processing terminal after analyzing the liquid type and the required flow value. For specific methods, refer to Figure 2 steps.

[0051] Step S103: Control the diaphragm pump to suck and discharge the liquid according to the motor frequency value.

[0052] Among them, after the processing terminal determines the motor frequency value, the processing terminal controls the rotation of the motor in the diaphragm pump according to the motor frequency value, so as to suck and discharge the liquid at the required flow value, without the need for personnel to constantly check the flow meter reading and manually adjust the motor frequency, thereby improving the convenience and efficiency of the diaphragm pump flow control.

[0053] Reference Figure 2 , the steps for analyzing the liquid type and required flow value to determine the motor frequency value of the diaphragm pump include: Step S200: Determine whether the liquid type meets the preset direct matching type requirement.

[0054] Among them, the direct matching type refers to the liquid type that can directly match the motor frequency value. The operator inputs the liquid type corresponding to the frequency in the database of the diaphragm pump and stores it in the processing terminal. The requirement of the direct matching type refers to the requirement existing in the direct matching type.

[0055] The processing terminal determines whether the liquid type exists in the direct matching type, thereby determining whether it is possible to directly match the frequency value of sucking and discharging the liquid corresponding to the liquid type at the required flow rate.

[0056] Step S201: If not, determine the motor frequency value of the diaphragm pump according to a preset trial operation frequency determination method.

[0057] 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 of the liquid type corresponding to the liquid suction and discharge at the required flow rate. Therefore, the motor frequency value of the diaphragm pump is determined according to the trial operation frequency determination method. The specific method is referred to Figure 3 steps.

[0058] The trial operation frequency determination method refers to the method of determining the frequency value of the liquid type corresponding to the liquid suction and discharge at the required flow rate after the trial operation of the diaphragm pump, which is stored in the processing terminal by the operator. For specific methods, refer to Figure 3 steps.

[0059] Step S202: If the conditions are met, 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.

[0060] If the processing terminal determines that the liquid type exists in the direct matching type, it indicates that the frequency value of the liquid type corresponding to the liquid suction and discharge at the required flow rate can be directly matched. Therefore, the motor frequency value of the diaphragm pump is determined according to the relationship between the liquid type, the required flow rate value and the liquid flow frequency. For specific methods, refer to Figure 4 steps.

[0061] The liquid flow frequency relationship refers to the correspondence between the liquid type, viscosity and flow frequency relationship. The operator controls the diaphragm pump to suck and discharge different liquid types with different viscosities, and records the frequency and flow rate. The liquid type, viscosity and flow frequency relationship are then matched one by one to form a mapping table.

[0062] Reference Figure 3 The steps of determining the motor frequency value of the diaphragm pump according to the preset trial operation frequency determination method include: Step S300: Controlling the diaphragm pump to perform trial operation suction and discharge of liquid according to a preset trial operation frequency value.

[0063] Among them, the processing terminal controls the operation of the motor in the diaphragm pump according to the trial operation frequency value, thereby performing trial operation suction and discharge of the liquid, providing basic support for the subsequent determination of the pump efficiency value of the diaphragm pump for the liquid.

[0064] The trial operation frequency value refers to the motor frequency value when the diaphragm pump sucks and discharges the liquid during trial operation. The specific value is determined by the operator based on actual conditions.

[0065] Step S301: Obtain the test flow value of the diaphragm pump during trial operation.

[0066] The trial run detection flow value refers to the flow of the diaphragm pump detected when the diaphragm pump sucks and discharges the liquid during the trial run, which is detected by the flow meter and sent to the processing terminal.

[0067] Step S302: Analyze the test run detection flow value, the test run frequency value and the preset pump parameter value to determine the pump efficiency value of the diaphragm pump.

[0068] Among them, after determining the trial run detection flow value, the processing terminal determines the pump efficiency value of the diaphragm pump after analyzing the trial run detection flow value, trial run frequency value and pump parameter value, providing data support for the subsequent determination of the motor frequency value.

[0069] The pump parameter value refers to the volume of the diaphragm in the diaphragm pump that moves in a single time. It is determined by the operator according to the actual situation of the diaphragm pump and entered and stored in the processing terminal. The pump efficiency value refers to the efficiency value of the diaphragm pump in 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.

[0070] Step S303: Analyze the required flow value, pump efficiency value and pump parameter value to determine the motor frequency value of the diaphragm pump.

[0071] Among them, the motor frequency value in this step is consistent with the motor frequency value in step S10221. The processing terminal calculates the product of the pump efficiency value and the pump parameter value, and then calculates the quotient between the required flow value and the product to obtain it.

[0072] Reference Figure 4 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: Step S400: obtaining a liquid viscosity detection value of the liquid.

[0073] The liquid viscosity detection value refers to the viscosity value of the liquid, which is obtained by detecting the viscosity of the liquid by an online viscometer and sending it to a processing terminal.

[0074] Step S401: determining a standard viscosity value of the liquid according to the liquid type and a preset relationship between the liquid viscosity.

[0075] The liquid viscosity relationship refers to the correspondence between the liquid type and the viscosity value. The operator forms a mapping table by matching the liquids with determined frequencies and flows with the viscosities of the liquids one by one.

[0076] The standard viscosity value of the liquid refers to the viscosity value of the liquid that can directly match the frequency value, which is obtained by searching in a mapping table corresponding to the liquid viscosity relationship according to the liquid type by the processing terminal.

[0077] Step S402: Determine whether the liquid viscosity detection value meets the requirements of the liquid standard viscosity value.

[0078] The requirement of the standard viscosity value of the liquid refers to the existence of the standard viscosity value of the liquid. The processing terminal determines whether the liquid viscosity detection value exists in the standard viscosity value of the liquid, thereby determining whether the liquid of the viscosity can directly match the frequency value.

[0079] Step S4021: If not, the liquid viscosity detection value is analyzed to determine the motor frequency value of the diaphragm pump.

[0080] If the processing terminal determines that the liquid viscosity detection value does not exist in the liquid standard viscosity value, it means that the relationship between the flow rate and frequency of the liquid of this viscosity is not recorded, so the frequency value of the liquid of this viscosity cannot be directly matched. After analyzing the liquid viscosity detection value, the motor frequency value of the diaphragm pump is determined. The specific method is referred to Figure 5 steps.

[0081] Step S4022: If it meets the requirements, the actual flow rate frequency relationship is determined according to the liquid type, the liquid viscosity detection value and the liquid flow rate frequency relationship.

[0082] Among them, if the processing terminal determines that the liquid viscosity detection value exists in the liquid standard viscosity value, it means that the relationship between the flow rate and frequency of the liquid of this viscosity is recorded in the processing terminal. Therefore, the actual flow rate-frequency relationship is determined according to the liquid type, the liquid viscosity detection value and the liquid flow rate-frequency relationship, providing data support for the subsequent determination of the motor frequency value.

[0083] The actual flow-frequency relationship refers to the correspondence between the flow rate of the viscosity liquid and the motor frequency, which is obtained by searching the liquid flow-frequency relationship by the processing terminal according to the liquid type and the liquid viscosity detection value. The actual flow-frequency relationship itself is detected by the operator when the diaphragm pump is controlled at different frequencies to suck and discharge the liquid, and the frequency and flow value are matched one by one to obtain a mapping table.

[0084] Step S403: Determine the motor frequency value of the diaphragm pump according to the relationship between the required flow value and the actual flow frequency.

[0085] Among them, the motor frequency value in this step is consistent with the motor frequency value in step S10221, and is obtained by searching in the mapping table corresponding to the actual flow frequency relationship according to the required flow value by the processing terminal.

[0086] Reference Figure 5 , the steps of analyzing the liquid viscosity detection value to determine the motor frequency value of the diaphragm pump include: Step S500: analyzing the liquid viscosity detection value and the preset reference viscosity value to determine the liquid viscosity difference value.

[0087] The reference viscosity value refers to the viscosity of the liquid when the efficiency value of the diaphragm pump is the highest. Specifically, the operator controls the diaphragm pump to calculate the efficiency value when sucking and discharging liquids of different viscosities, and selects the viscosity when the efficiency value is the maximum as the reference viscosity value.

[0088] The liquid viscosity difference value refers to the difference between the current liquid viscosity and the reference viscosity, and is obtained by calculating the difference between the liquid viscosity detection value and the reference viscosity value by the processing terminal.

[0089] Step S501: Analyze the liquid viscosity difference value and the preset viscosity efficiency influencing factor to determine the actual influencing efficiency factor.

[0090] Among them, the viscosity efficiency factor refers to the degree of influence of viscosity change on pump efficiency, which is a constant and is determined by the operator according to the design of the diaphragm pump. The actual efficiency factor refers to the degree of influence of the current viscosity of the liquid on the pump efficiency. The processing terminal calculates the inverse of the product of the liquid viscosity difference value and the viscosity efficiency factor, and then uses the base of the natural logarithm e as the base and the inverse of the product as the exponent to calculate the actual efficiency factor.

[0091] Step S502: Analyze the actual efficiency influencing factor and the preset reference efficiency value to determine the motor frequency value of the diaphragm pump.

[0092] Among them, the motor frequency value in this step is consistent with the motor frequency value in step S10221. The processing terminal calculates the product of the actual influencing efficiency factor and the reference efficiency value to obtain the actual efficiency value, and then calculates the product of the actual efficiency value and the pump parameter value. Finally, the quotient of the demand flow value and the product is calculated to obtain the motor frequency value.

[0093] Reference Figure 6 The steps of controlling the diaphragm pump to suck and discharge liquid according to the motor frequency value include: Step S600: Control the diaphragm pump to suck and discharge the liquid at the motor frequency value, and obtain the actual detected flow value of the diaphragm pump.

[0094] Among them, the processing terminal controls the rotation of the motor in the diaphragm pump according to the motor frequency value, so that the diaphragm pump can suck and discharge the liquid, and detects the actual detection flow value of the diaphragm pump to provide data support for the subsequent determination of whether the flow control of the diaphragm pump meets the usage needs of personnel.

[0095] The actual detected flow value refers to the flow rate of the diaphragm pump when the diaphragm pump sucks and discharges the liquid at the motor frequency value, which is detected by the flow meter and sent to the processing terminal.

[0096] Step S601: Determine whether the actual detected flow value meets the requirement of the required flow value.

[0097] The requirement of the required flow value refers to being equal to the required flow value. The processing terminal determines whether the actual detected flow value is equal to the required flow value, thereby determining whether the diaphragm pump controlled by the motor frequency value meets the flow demand of the personnel.

[0098] Step S6011: If it meets the requirements, continue to control the diaphragm pump to suck and discharge the liquid at the motor frequency value, and continue to obtain the actual detection flow value of the diaphragm pump for cyclic judgment.

[0099] Among them, if the processing terminal determines that the actual detected flow value is equal to the required flow value, it means that the diaphragm pump controlled by the motor frequency value meets the flow requirements of the personnel. Therefore, the diaphragm pump continues to be controlled to suck and discharge the liquid at the motor frequency value, and the actual detected flow value of the diaphragm pump continues to be detected, so as to continue to pay attention to the flow changes of the diaphragm pump.

[0100] Step S6012: If not, the motor frequency value is adjusted until the actual detected flow value meets the requirement of the demanded flow value.

[0101] If the processing terminal determines that the actual detected flow value is not equal to the required flow value, it means that the diaphragm pump controlled by the motor frequency value cannot meet the flow demand of the personnel. Therefore, the motor frequency value is adjusted until the actual detected flow value is equal to the required flow value. For specific methods, refer to Figure 7 steps.

[0102] Reference Figure 7 The steps of adjusting the motor frequency value until the actual detected flow value meets the required flow value include: Step S700: Analyze the actual detected flow value and the required flow value to determine the frequency value adjustment direction.

[0103] Among them, the frequency value adjustment direction refers to the adjustment direction of the motor frequency value, including increase or decrease. The processing terminal makes a difference between the actual detected flow value and the required flow value to obtain the flow difference. If the flow difference is a positive number, it decreases, and if the flow difference is a negative number, it increases.

[0104] Step S701: adjusting the motor frequency value according to the frequency value adjustment direction and the preset unit adjustment frequency value to generate a motor adjustment frequency value.

[0105] Among them, after the processing terminal obtains the frequency value adjustment direction, the processing terminal adjusts the frequency value with the frequency value adjustment direction adjustment unit based on the motor frequency to obtain the motor adjustment frequency value, providing data support for the subsequent determination of the final frequency value.

[0106] 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 adjustment frequency value refers to the motor frequency value adjusted once, which is obtained by the processing terminal adjusting the unit adjustment frequency value in the frequency value adjustment direction based on the motor frequency.

[0107] Step S702: 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.

[0108] After the processing terminal obtains the motor adjustment frequency value, the processing terminal controls the rotation of the motor in the diaphragm pump according to the motor adjustment frequency value, so that the diaphragm pump inhales and discharges the liquid, and detects the adjustment detection flow value at this time.

[0109] The adjustment detection flow value refers to the flow of the diaphragm pump after the frequency is adjusted, which is detected by the flow meter and sent to the processing terminal.

[0110] Step S703: Analyze the adjusted detection flow value, the actual detection flow value and the required flow value to determine the final adjustment frequency value.

[0111] Among them, the final adjustment frequency value refers to the frequency value to which the diaphragm pump flow adjustment value needs to be adjusted according to the required flow. The processing terminal calculates the difference between the actual detection flow value and the required flow value, and then calculates the quotient of the difference and the adjusted detection flow value to obtain the number of frequency adjustments. Finally, the product of the frequency adjustment number and the unit adjustment frequency value is calculated to obtain the final adjustment frequency value.

[0112] Step S704: adjusting the motor frequency value according to the frequency value adjustment direction and the final adjusted frequency value to generate a final actual frequency value.

[0113] The final actual frequency value refers to the frequency that ultimately controls the diaphragm pump to suck and discharge liquid, and is obtained by adjusting the final adjustment frequency value in the frequency value adjustment direction based on the motor frequency value by the processing terminal.

[0114] Step S705: Control the diaphragm pump to suck and discharge the liquid at the final actual frequency value.

[0115] Among them, after the processing terminal obtains the final actual frequency value, the processing terminal controls the rotation of the motor in the diaphragm pump according to the final actual frequency value, so that the diaphragm pump sucks and discharges the liquid, and the flow rate of the diaphragm pump reaches the required flow rate during the circulation adjustment process.

[0116] Based on the same inventive concept, the embodiment of the present application provides a diaphragm pump flow control system, comprising: An acquisition module is used to acquire a start trigger signal, a required working status, a historical working status, a historical frequency value, a liquid type, a required flow value, a trial run test flow value, a liquid viscosity test value, an actual test flow value, and an adjusted test flow value; A memory for storing a program of a diaphragm pump flow control method; The program in the memory can be loaded and executed by the processor to implement a diaphragm pump flow control method.

[0117] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, 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 process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0118] 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 a diaphragm pump flow control method.

[0119] Computer storage media include, for example, various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks or optical disks.

[0120] Based on the same inventive concept, an embodiment of the present application provides an intelligent terminal, including a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executes a diaphragm pump flow control method.

[0121] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, 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 process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0122] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any feature disclosed in this specification (including the abstract and drawings), unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, 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.

2. A diaphragm pump flow control method according to claim 1, characterized in that: 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.

3. A diaphragm pump flow control method according to claim 2, 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.

4. A diaphragm pump flow control method according to claim 2, characterized in that: 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; The motor frequency value of the diaphragm pump is determined based on the relationship between the required flow value and the actual flow frequency.

5. A diaphragm pump flow control method according to claim 4, characterized in that: 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.

6. 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.

7. A diaphragm pump flow control method according to claim 6, 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.

8. 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 7; The program in the memory can be loaded and executed by the processor to implement a diaphragm pump flow control method as described in any one of claims 1 to 7.

9. 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 7.

10. 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 7.

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