A control system for a diaphragm booster pump

By designing a control system for diaphragm booster pump, including a liquid parameter acquisition module and a preliminary analysis module, the problem of difficulty in data acquisition and analysis in the prior art is solved, the accuracy and effectiveness of control are improved, and the stable operation and energy efficiency of the pump are ensured.

CN119554217BActive Publication Date: 2025-05-13LONGKOU LIJIA ELECTRIC CO LTD
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Patent Information

Application Number
CN202510134161.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2025-05-13
Estimated Expiration
2045-02-07

AI Technical Summary

Technical Problem

The prior art requires controlling multiple devices or systems in the control of diaphragm booster pumps, which increases the difficulty of data acquisition and analysis and reduces the accuracy and effectiveness of control.

Method used

A control system is designed, including a liquid parameter acquisition module and a preliminary analysis module. The liquid parameter acquisition module obtains the liquid parameters of the working liquid of the diaphragm booster pump through multiple types of sensors, and the preliminary analysis module conducts preliminary analysis and acquisition of regulatory results based on these parameters.

Benefits of technology

It improves the efficiency and accuracy of the data collection of various types of diaphragm booster pumps, enhances the accuracy and timeliness of control results, ensures the stable operation of the pump, and improves energy utilization efficiency, safety and reliability.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The present application discloses a control system for a diaphragm booster pump, which relates to the control field of the diaphragm booster pump, and includes a liquid parameter acquisition module and a preliminary analysis module. The present invention acquires data through multiple types of sensors, effectively improving the collection efficiency and accuracy of various types of data of the diaphragm booster pump, providing a scientific and reliable data basis for the subsequent control of the diaphragm booster pump, and indirectly improving the accuracy and timeliness of the control result of the diaphragm booster pump. By detecting the internal temperature, liquid temperature, and ambient temperature of the diaphragm booster pump when it is working, and systematically analyzing various types of data related to the environment, the system is regulated according to the change of the internal temperature and the liquid temperature, thereby improving the accuracy of the control result of the diaphragm booster pump while improving the energy utilization efficiency, enhancing safety and reliability.
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Description

Technical Field

[0001] The present application relates to the control field of a diaphragm booster pump, and in particular to a control system for a diaphragm booster pump. Background Art

[0002] With the continuous development of the Internet of Things and Industry 4.0 technology, the remote monitoring and intelligent management functions of the control system are becoming more and more important. By introducing remote monitoring technology, real-time monitoring and data analysis of diaphragm booster pumps can be achieved, and potential problems can be discovered and handled in a timely manner. In addition, the intelligent management function can also analyze and predict based on historical data and real-time data, providing a scientific basis for equipment maintenance and management;

[0003] Ensuring the stable operation of the pump is conducive to improving energy efficiency, enhancing safety and reliability, realizing remote monitoring and intelligent management, and adapting to complex working conditions and diversified needs. These advantages make the control system an indispensable and important part of the diaphragm booster pump. However, the existing technology still has the following shortcomings;

[0004] Existing technologies often need to control multiple devices or systems to achieve the purpose when controlling a diaphragm booster pump, which indirectly increases the difficulty of data collection and data analysis, thereby reducing the accuracy of data analysis results, resulting in a significant reduction in the accuracy and effectiveness of diaphragm booster pump control, which is not conducive to improving energy utilization efficiency, enhancing safety, reliability and ensuring normal production. Summary of the invention

[0005] The object of the present invention is to provide a control system for a diaphragm booster pump to solve the problems raised in the above background technology.

[0006] Liquid parameter acquisition module: used to monitor the working liquid in the diaphragm booster pump and obtain the liquid parameters of the working liquid in the diaphragm booster pump;

[0007] Preliminary analysis module: used to perform preliminary analysis based on the liquid parameters of the working liquid in the diaphragm booster pump to obtain the control results of the diaphragm booster pump.

[0008] In a preferred embodiment of this solution, the specific implementation method of the liquid parameter acquisition module is as follows:

[0009] Establish a data extraction relationship between the liquid parameter acquisition module and the database, and extract the physical and chemical information corresponding to each type of liquid stored in the database, wherein the physical and chemical information includes the thermal conductivity coefficient of each type of liquid, the critical temperature of each type of liquid, and the liquid density and liquid viscosity corresponding to each type of liquid at each temperature;

[0010] Obtain the working log of the diaphragm booster pump, and obtain the liquid type of the corresponding working liquid of the diaphragm booster pump through the working log of the diaphragm booster pump;

[0011] The temperature of the working liquid in the infusion pipeline of the diaphragm booster pump is obtained by monitoring the preset temperature sensor in the infusion pipeline of the diaphragm booster pump, and recorded as the original temperature of the working liquid in the infusion pipeline of the diaphragm booster pump;

[0012] The physical and chemical information corresponding to the working liquid in the diaphragm booster pump is obtained according to the original temperature of the working liquid in the infusion pipeline of the diaphragm booster pump and the liquid type of the working liquid corresponding to the diaphragm booster pump;

[0013] The original liquid flow rate of the working liquid in the infusion pipeline of the diaphragm booster pump is obtained by monitoring the flow rate flow meter preset in the infusion pipeline of the diaphragm booster pump;

[0014] The original temperature and original liquid flow rate of the working liquid in the diaphragm booster pump delivery pipeline are recorded as liquid parameters of the working liquid in the diaphragm booster pump.

[0015] In the preferred embodiment of this scheme, the specific implementation method of the preliminary analysis module is as follows:

[0016] The working power corresponding to the diaphragm booster pump motor, the working power of the cooling device and the heat dissipation power of the heat dissipation device are obtained through the digital control platform;

[0017] Establish a data extraction relationship between the preliminary analysis module and the database, extract the material information and mechanical structure of the diaphragm booster pump stored in the database, wherein the material information includes the pipe material of the infusion pipe in the diaphragm booster pump and the shell material of the diaphragm booster pump, extract the basic heat dissipation multiplier corresponding to each mechanical structure and shell material combination stored in the database, extract the heat transfer coefficient corresponding to each pipe material stored in the database, obtain the basic heat dissipation multiplier corresponding to the diaphragm booster pump by screening the shell material and mechanical structure of the diaphragm booster pump, and obtain the heat transfer coefficient of the infusion pipe in the diaphragm booster pump by screening the pipe material of the infusion pipe in the diaphragm booster pump;

[0018] The internal temperature of the diaphragm booster pump is obtained by monitoring a temperature sensor preset inside the diaphragm booster pump, and the ambient temperature of the near area of ​​the diaphragm booster pump is obtained by monitoring a temperature sensor preset in the near area of ​​the diaphragm booster pump;

[0019] Extract the heat offset value of each original temperature corresponding to each working power of the cooling device stored in the database per unit time, extract the heat gain value corresponding to each combination of liquid density, liquid viscosity and liquid flow rate stored in the database per unit time, and obtain the heat offset value corresponding to the working power of the cooling device and the heat gain value corresponding to the working liquid in the diaphragm booster pump infusion pipeline through screening;

[0020] By calculating the formula , calculate the net increase in heat of the working fluid in the infusion pipeline per unit time ,in , They are respectively expressed as the heat increase value corresponding to the working liquid in the diaphragm booster pump delivery pipeline and the heat offset value corresponding to the working power of the cooling device;

[0021] Get the diameter of the infusion pipe in the diaphragm booster pump;

[0022] Extract the total basic heat value corresponding to each volume and temperature combination of various types of liquids stored in the database, and obtain the total basic heat value of the working liquid in the infusion pipeline of the diaphragm booster pump per unit time through the original temperature of the working liquid in the infusion pipeline of the diaphragm booster pump, the original liquid flow rate and the diameter of the infusion pipeline of the diaphragm booster pump;

[0023] By calculating the formula , calculate the second increase in heat of the working fluid in the infusion pipeline through the pipeline heat transfer per unit time ,in , , They are respectively represented by the original temperature of the working fluid in the diaphragm booster pump delivery pipeline, the internal temperature of the diaphragm booster pump and the heat transfer coefficient of the delivery pipeline in the diaphragm booster pump. Expressed as the influence factor of the preset liquid temperature difference on heat transfer, It is expressed as the total basic heat value of the working fluid in the diaphragm booster pump delivery pipeline per unit time;

[0024] Calculate the total heat gain of the working fluid in the infusion pipeline per unit time , ;

[0025] Extract the temperature change corresponding to each volume, original temperature and total heat gain combination of each type of liquid stored in the database per unit time, and obtain the temperature change of the working liquid in the infusion pipeline per unit time by screening the total heat gain of the working liquid in the infusion pipeline per unit time, the original temperature of the working liquid in the infusion pipeline of the diaphragm booster pump, the original liquid flow rate and the diameter of the infusion pipeline of the diaphragm booster pump;

[0026] By calculating the formula , calculate the predicted temperature of the working liquid in the infusion pipeline after unit time ,in It is expressed as the temperature change of the working fluid in the infusion pipeline per unit time;

[0027] The minimum liquid flow rate of the working liquid in the infusion pipeline corresponding to the work task to be completed is obtained through the work log of the diaphragm booster pump, which is recorded as the minimum liquid flow rate of the working liquid in the infusion pipeline. The minimum liquid flow rate of the working liquid in the infusion pipeline and the original liquid flow rate of the working liquid in the infusion pipeline of the diaphragm booster pump are calculated to obtain the flow rate difference of the work task to be completed;

[0028] Extract the motor power change corresponding to each original liquid flow rate and flow rate difference stored in the database, and obtain the motor power change of the diaphragm booster pump motor by screening the original liquid flow rate of the working liquid in the infusion pipeline and the flow rate difference to complete the work task;

[0029] Extract the heat release increase value corresponding to each motor power change amount stored in the data, and obtain the heat release increase value corresponding to the motor power change amount of the diaphragm booster pump motor according to the motor power change amount of the diaphragm booster pump motor;

[0030] By calculating the formula {t}^{'}_{2}={t}_{2}+\left [ {m\ast \left ( {1-{s}^{'}} \right )\ast \frac {{t}_{3}} {{t}_{2}}} \right ]\ast \beta , calculate the predicted internal temperature of the diaphragm booster pump after the motor power change is completed, and record it as the predicted internal temperature of the diaphragm booster pump ,in It is expressed as the increase in heat release corresponding to the change in motor power of the diaphragm booster pump motor. Expressed as the basic heat dissipation multiplier corresponding to the diaphragm booster pump, Expressed as the ambient temperature in the vicinity of the diaphragm booster pump, It is expressed as the influence factor of ambient temperature difference on heat transfer;

[0031] Compare and analyze the predicted internal temperature corresponding to the diaphragm booster pump with the preset internal temperature threshold of the diaphragm booster pump. If the predicted internal temperature corresponding to the diaphragm booster pump is greater than or equal to the preset internal temperature threshold of the diaphragm booster pump, increase the working power of the heat dissipation device corresponding to the diaphragm booster pump to adjust the working power, so as to ensure that the predicted internal temperature of the diaphragm booster pump is less than the preset internal temperature threshold of the diaphragm booster pump, and obtain the minimum working power of the heat dissipation device after the adjustment.

[0032] If the changed internal temperature corresponding to the motor power change of the diaphragm booster pump motor is less than the internal temperature threshold of the diaphragm booster pump motor, the working power of the heat dissipation device corresponding to the diaphragm booster pump is reduced and regulated to ensure that the predicted internal temperature of the diaphragm booster pump is less than the internal temperature threshold of the diaphragm booster pump, and at the same time, the minimum working power of the heat dissipation device after the corresponding regulation is obtained;

[0033] By performing data analysis and calculation based on the working power of the cooling device, the predicted internal temperature corresponding to the diaphragm booster pump, the minimum liquid flow rate of the working liquid in the infusion pipeline, and the original temperature of the working liquid in the infusion pipeline of the diaphragm booster pump, a predicted temperature of the working liquid in the infusion pipeline after a unit time corresponding to a combination of the predicted internal temperature corresponding to the diaphragm booster pump and the minimum liquid flow rate of the working liquid in the infusion pipeline is obtained, and the predicted temperature of the working liquid in the infusion pipeline after a unit time is recorded as the predicted temperature of the working liquid in the infusion pipeline;

[0034] The predicted temperature of the working liquid in the infusion pipeline is analyzed and compared with the critical temperature corresponding to the working liquid in the infusion pipeline. If the predicted temperature of the working liquid in the infusion pipeline is lower than the critical temperature corresponding to the working liquid in the infusion pipeline, the working power of the cooling device is reduced and regulated to ensure that the predicted temperature of the working liquid in the infusion pipeline is lower than the critical temperature corresponding to the working liquid in the infusion pipeline, and at the same time, the minimum working power of the cooling device after the corresponding regulation is obtained;

[0035] If the predicted temperature of the working liquid in the infusion pipeline is greater than or equal to the critical temperature corresponding to the working liquid in the infusion pipeline, the working power of the cooling device corresponding to the diaphragm booster pump is increased and regulated to ensure that the predicted temperature of the working liquid in the infusion pipeline is less than the critical temperature corresponding to the working liquid in the infusion pipeline. At the same time, the minimum working power of the cooling device after the corresponding regulation is obtained, and the minimum working power of the cooling device after the corresponding regulation and the minimum working power of the heat dissipation device after the corresponding regulation are recorded as the regulation results of the diaphragm booster pump.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] The present invention acquires data through multiple types of sensors, effectively improving the collection efficiency and accuracy of various types of data of the diaphragm booster pump, providing a scientific and reliable data basis for the subsequent control of the diaphragm booster pump, indirectly improving the accuracy and timeliness of the control results of the diaphragm booster pump, and being conducive to ensuring the stable operation of the pump, improving energy utilization efficiency, and enhancing safety and reliability;

[0038] The present invention detects the internal temperature, liquid temperature and ambient temperature of the diaphragm booster pump when it is working, and systematically analyzes various types of data related to the environment, thereby reducing the types of data collected and ensuring the reliability and effectiveness of data analysis, thereby improving the accuracy of the diaphragm booster pump control results while improving energy utilization efficiency, enhancing safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The present invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0040] Figure 1 This is a schematic diagram of module connection according to an embodiment of the present invention. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1 The present invention provides a control system for a diaphragm booster pump, the system includes a liquid parameter acquisition module and a preliminary analysis module, and the liquid parameter acquisition module is connected to the preliminary analysis module.

[0043] The liquid parameter acquisition module is used to monitor the working liquid in the diaphragm booster pump and obtain the liquid parameters of the working liquid in the diaphragm booster pump;

[0044] Furthermore, the specific implementation of the liquid parameter acquisition module is as follows:

[0045] Establish a data extraction relationship between the liquid parameter acquisition module and the database, and extract the physical and chemical information corresponding to each type of liquid stored in the database, wherein the physical and chemical information includes the thermal conductivity coefficient of each type of liquid, the critical temperature of each type of liquid, and the liquid density and liquid viscosity corresponding to each type of liquid at each temperature;

[0046] Obtain the working log of the diaphragm booster pump, and obtain the liquid type of the corresponding working liquid of the diaphragm booster pump through the working log of the diaphragm booster pump;

[0047] The temperature of the working liquid in the infusion pipeline of the diaphragm booster pump is obtained by monitoring the preset temperature sensor in the infusion pipeline of the diaphragm booster pump, and recorded as the original temperature of the working liquid in the infusion pipeline of the diaphragm booster pump;

[0048] The physical and chemical information corresponding to the working liquid in the diaphragm booster pump is obtained according to the original temperature of the working liquid in the infusion pipeline of the diaphragm booster pump and the liquid type of the working liquid corresponding to the diaphragm booster pump;

[0049] The original liquid flow rate of the working liquid in the infusion pipeline of the diaphragm booster pump is obtained by monitoring the flow rate flow meter preset in the infusion pipeline of the diaphragm booster pump;

[0050] The original temperature and original liquid flow rate of the working liquid in the diaphragm booster pump delivery pipeline are recorded as liquid parameters of the working liquid in the diaphragm booster pump.

[0051] Furthermore, the specific execution method of the preliminary analysis module is as follows:

[0052] The working power corresponding to the diaphragm booster pump motor, the working power of the cooling device and the heat dissipation power of the heat dissipation device are obtained through the digital control platform;

[0053] Establish a data extraction relationship between the preliminary analysis module and the database, extract the material information and mechanical structure of the diaphragm booster pump stored in the database, wherein the material information includes the pipe material of the infusion pipe in the diaphragm booster pump and the shell material of the diaphragm booster pump, extract the basic heat dissipation multiplier corresponding to each mechanical structure and shell material combination stored in the database, extract the heat transfer coefficient corresponding to each pipe material stored in the database, obtain the basic heat dissipation multiplier corresponding to the diaphragm booster pump by screening the shell material and mechanical structure of the diaphragm booster pump, and obtain the heat transfer coefficient of the infusion pipe in the diaphragm booster pump by screening the pipe material of the infusion pipe in the diaphragm booster pump;

[0054] The internal temperature of the diaphragm booster pump is obtained by monitoring a temperature sensor preset inside the diaphragm booster pump, and the ambient temperature of the near area of ​​the diaphragm booster pump is obtained by monitoring a temperature sensor preset in the near area of ​​the diaphragm booster pump;

[0055] Extract the heat offset value of each original temperature corresponding to each working power of the cooling device stored in the database per unit time, extract the heat gain value corresponding to each combination of liquid density, liquid viscosity and liquid flow rate stored in the database per unit time, and obtain the heat offset value corresponding to the working power of the cooling device and the heat gain value corresponding to the working liquid in the diaphragm booster pump infusion pipeline through screening;

[0056] By calculating the formula , calculate the net increase in heat of the working fluid in the infusion pipeline per unit time ,in , They are respectively expressed as the heat increase value corresponding to the working liquid in the diaphragm booster pump delivery pipeline and the heat offset value corresponding to the working power of the cooling device;

[0057] Get the diameter of the infusion pipe in the diaphragm booster pump;

[0058] Extract the total basic heat value corresponding to each volume and temperature combination of various types of liquids stored in the database, and obtain the total basic heat value of the working liquid in the infusion pipeline of the diaphragm booster pump per unit time through the original temperature of the working liquid in the infusion pipeline of the diaphragm booster pump, the original liquid flow rate and the diameter of the infusion pipeline of the diaphragm booster pump;

[0059] By calculating the formula , calculate the second increase in heat of the working fluid in the infusion pipeline through the pipeline heat transfer per unit time ,in , , They are respectively represented by the original temperature of the working fluid in the diaphragm booster pump delivery pipeline, the internal temperature of the diaphragm booster pump and the heat transfer coefficient of the delivery pipeline in the diaphragm booster pump. Expressed as the influence factor of the preset liquid temperature difference on heat transfer, It is expressed as the total basic heat value of the working fluid in the diaphragm booster pump delivery pipeline per unit time;

[0060] Calculate the total heat gain of the working fluid in the infusion pipeline per unit time , ;

[0061] Extract the temperature change corresponding to each volume, original temperature and total heat gain combination of each type of liquid stored in the database per unit time, and obtain the temperature change of the working liquid in the infusion pipeline per unit time by screening the total heat gain of the working liquid in the infusion pipeline per unit time, the original temperature of the working liquid in the infusion pipeline of the diaphragm booster pump, the original liquid flow rate and the diameter of the infusion pipeline of the diaphragm booster pump;

[0062] By calculating the formula , calculate the predicted temperature of the working liquid in the infusion pipeline after unit time ,in It is expressed as the temperature change of the working fluid in the infusion pipeline per unit time;

[0063] The minimum liquid flow rate of the working liquid in the infusion pipeline corresponding to the work task to be completed is obtained through the work log of the diaphragm booster pump, which is recorded as the minimum liquid flow rate of the working liquid in the infusion pipeline. The minimum liquid flow rate of the working liquid in the infusion pipeline and the original liquid flow rate of the working liquid in the infusion pipeline of the diaphragm booster pump are calculated to obtain the flow rate difference of the work task to be completed;

[0064] Extract the motor power change corresponding to each original liquid flow rate and flow rate difference stored in the database, and obtain the motor power change of the diaphragm booster pump motor by screening the original liquid flow rate of the working liquid in the infusion pipeline and the flow rate difference to complete the work task;

[0065] Extract the heat release increase value corresponding to each motor power change amount stored in the data, and obtain the heat release increase value corresponding to the motor power change amount of the diaphragm booster pump motor according to the motor power change amount of the diaphragm booster pump motor;

[0066] By calculating the formula {t}^{'}_{2}={t}_{2}+\left [ {m\ast \left ( {1-{s}^{'}} \right )\ast \frac {{t}_{3}} {{t}_{2}}} \right ]\ast \beta , calculate the predicted internal temperature of the diaphragm booster pump after the motor power change is completed, and record it as the predicted internal temperature of the diaphragm booster pump ,in It is expressed as the increase in heat release corresponding to the change in motor power of the diaphragm booster pump motor. Expressed as the basic heat dissipation multiplier corresponding to the diaphragm booster pump, Expressed as the ambient temperature in the vicinity of the diaphragm booster pump, It is expressed as the factor affecting the heat transfer by the ambient temperature difference;

[0067] It should be noted that the motor driving the heat dissipation device and the cooling device is no longer inside the diaphragm booster pump.

[0068] Compare and analyze the predicted internal temperature corresponding to the diaphragm booster pump with the preset internal temperature threshold of the diaphragm booster pump. If the predicted internal temperature corresponding to the diaphragm booster pump is greater than or equal to the preset internal temperature threshold of the diaphragm booster pump, increase the working power of the heat dissipation device corresponding to the diaphragm booster pump to adjust the working power, so as to ensure that the predicted internal temperature of the diaphragm booster pump is less than the preset internal temperature threshold of the diaphragm booster pump, and obtain the minimum working power of the heat dissipation device after the adjustment.

[0069] If the changed internal temperature corresponding to the motor power change of the diaphragm booster pump motor is less than the internal temperature threshold of the diaphragm booster pump motor, the working power of the heat dissipation device corresponding to the diaphragm booster pump is reduced and regulated to ensure that the predicted internal temperature of the diaphragm booster pump is less than the internal temperature threshold of the diaphragm booster pump, and at the same time, the minimum working power of the heat dissipation device after the corresponding regulation is obtained;

[0070] By performing data analysis and calculation based on the working power of the cooling device, the predicted internal temperature corresponding to the diaphragm booster pump, the minimum liquid flow rate of the working liquid in the infusion pipeline, and the original temperature of the working liquid in the infusion pipeline of the diaphragm booster pump, a predicted temperature of the working liquid in the infusion pipeline after a unit time corresponding to a combination of the predicted internal temperature corresponding to the diaphragm booster pump and the minimum liquid flow rate of the working liquid in the infusion pipeline is obtained, and the predicted temperature of the working liquid in the infusion pipeline after a unit time is recorded as the predicted temperature of the working liquid in the infusion pipeline;

[0071] The predicted temperature of the working liquid in the infusion pipeline is analyzed and compared with the critical temperature corresponding to the working liquid in the infusion pipeline. If the predicted temperature of the working liquid in the infusion pipeline is lower than the critical temperature corresponding to the working liquid in the infusion pipeline, the working power of the cooling device is reduced and regulated to ensure that the predicted temperature of the working liquid in the infusion pipeline is lower than the critical temperature corresponding to the working liquid in the infusion pipeline, and at the same time, the minimum working power of the cooling device after the corresponding regulation is obtained;

[0072] If the predicted temperature of the working liquid in the infusion pipeline is greater than or equal to the critical temperature corresponding to the working liquid in the infusion pipeline, the working power of the cooling device corresponding to the diaphragm booster pump is increased and regulated to ensure that the predicted temperature of the working liquid in the infusion pipeline is less than the critical temperature corresponding to the working liquid in the infusion pipeline. At the same time, the minimum working power of the cooling device after the corresponding regulation is obtained, and the minimum working power of the cooling device after the corresponding regulation and the minimum working power of the heat dissipation device after the corresponding regulation are recorded as the regulation results of the diaphragm booster pump.

[0073] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A control system for a diaphragm booster pump, characterized in that: include: Liquid parameter acquisition module: used to monitor the working liquid in the diaphragm booster pump and obtain the liquid parameters of the working liquid in the diaphragm booster pump; Preliminary analysis module: used to perform preliminary analysis based on the liquid parameters of the working liquid in the diaphragm booster pump to obtain the control result of the diaphragm booster pump; The specific implementation of the preliminary analysis module is as follows; The working power corresponding to the diaphragm booster pump motor, the working power of the cooling device and the heat dissipation power of the heat dissipation device are obtained through the digital control platform; Establish a data extraction relationship between the preliminary analysis module and the database, extract the material information and mechanical structure of the diaphragm booster pump stored in the database, wherein the material information includes the pipe material of the infusion pipe in the diaphragm booster pump and the shell material of the diaphragm booster pump, extract the basic heat dissipation multiplier corresponding to each mechanical structure and shell material combination stored in the database, extract the heat transfer coefficient corresponding to each pipe material stored in the database, obtain the basic heat dissipation multiplier corresponding to the diaphragm booster pump by screening the shell material and mechanical structure of the diaphragm booster pump, and obtain the heat transfer coefficient of the infusion pipe in the diaphragm booster pump by screening the pipe material of the infusion pipe in the diaphragm booster pump; The internal temperature of the diaphragm booster pump is obtained by monitoring a temperature sensor preset inside the diaphragm booster pump, and the ambient temperature of the near area of ​​the diaphragm booster pump is obtained by monitoring a temperature sensor preset in the near area of ​​the diaphragm booster pump; Extract the heat offset value of each original temperature corresponding to each working power of the cooling device stored in the database per unit time, extract the heat gain value corresponding to each combination of liquid density, liquid viscosity and liquid flow rate stored in the database per unit time, and obtain the heat offset value corresponding to the working power of the cooling device and the heat gain value corresponding to the working liquid in the diaphragm booster pump infusion pipeline through screening; By calculating the formula , calculate the net increase in heat of the working fluid in the infusion pipeline per unit time ,in , They are respectively expressed as the heat increase value corresponding to the working fluid in the diaphragm booster pump delivery pipeline and the heat offset value corresponding to the working power of the cooling device; Get the diameter of the infusion pipe in the diaphragm booster pump; Extract the total basic heat value corresponding to each volume and temperature combination of various types of liquids stored in the database, and obtain the total basic heat value of the working liquid in the infusion pipeline of the diaphragm booster pump per unit time through the original temperature of the working liquid in the infusion pipeline of the diaphragm booster pump, the original liquid flow rate and the diameter of the infusion pipeline of the diaphragm booster pump; By calculating the formula , calculate the second increase in heat of the working fluid in the infusion pipeline through the pipeline heat transfer per unit time ,in , , They are respectively represented by the original temperature of the working fluid in the diaphragm booster pump delivery pipeline, the internal temperature of the diaphragm booster pump and the heat transfer coefficient of the delivery pipeline in the diaphragm booster pump. Expressed as the influence factor of the preset liquid temperature difference on heat transfer, It is expressed as the total basic heat value of the working fluid in the diaphragm booster pump delivery pipeline per unit time; Calculate the total heat gain of the working fluid in the infusion pipeline per unit time , = + ; Extract the temperature change corresponding to each volume, original temperature and total heat gain combination of each type of liquid stored in the database per unit time, and obtain the temperature change of the working liquid in the infusion pipeline per unit time by screening the total heat gain of the working liquid in the infusion pipeline per unit time, the original temperature of the working liquid in the infusion pipeline of the diaphragm booster pump, the original liquid flow rate and the diameter of the infusion pipeline of the diaphragm booster pump; By calculating the formula , calculate the predicted temperature of the working liquid in the infusion pipeline after unit time ,in It is expressed as the temperature change of the working fluid in the infusion pipeline per unit time; The minimum liquid flow rate of the working liquid in the infusion pipeline corresponding to the work task to be completed is obtained through the work log of the diaphragm booster pump, which is recorded as the minimum liquid flow rate of the working liquid in the infusion pipeline. The minimum liquid flow rate of the working liquid in the infusion pipeline and the original liquid flow rate of the working liquid in the infusion pipeline of the diaphragm booster pump are calculated to obtain the flow rate difference of the work task to be completed; Extract the motor power change corresponding to each original liquid flow rate and flow rate difference stored in the database, and obtain the motor power change of the diaphragm booster pump motor by screening the original liquid flow rate of the working liquid in the infusion pipeline and the flow rate difference to complete the work task; Extract the heat release increase value corresponding to each motor power change amount stored in the data, and obtain the heat release increase value corresponding to the motor power change amount of the diaphragm booster pump motor according to the motor power change amount of the diaphragm booster pump motor; By calculating the formula , calculate the predicted internal temperature of the diaphragm booster pump after the motor power change is completed, and record it as the predicted internal temperature of the diaphragm booster pump ,in It is expressed as the increase in heat release corresponding to the change in motor power of the diaphragm booster pump motor. Expressed as the basic heat dissipation multiplier corresponding to the diaphragm booster pump, Expressed as the ambient temperature in the vicinity of the diaphragm booster pump, It is expressed as the influence factor of ambient temperature difference on heat transfer; Compare and analyze the predicted internal temperature corresponding to the diaphragm booster pump with the preset internal temperature threshold of the diaphragm booster pump. If the predicted internal temperature corresponding to the diaphragm booster pump is greater than or equal to the preset internal temperature threshold of the diaphragm booster pump, increase the working power of the heat dissipation device corresponding to the diaphragm booster pump to adjust the working power, so as to ensure that the predicted internal temperature of the diaphragm booster pump is less than the preset internal temperature threshold of the diaphragm booster pump, and obtain the minimum working power of the heat dissipation device after the adjustment. If the changed internal temperature corresponding to the motor power change of the diaphragm booster pump motor is less than the internal temperature threshold of the diaphragm booster pump motor, the working power of the heat dissipation device corresponding to the diaphragm booster pump is reduced and regulated to ensure that the predicted internal temperature of the diaphragm booster pump is less than the internal temperature threshold of the diaphragm booster pump, and at the same time, the minimum working power of the heat dissipation device after the corresponding regulation is obtained; By performing data analysis and calculation based on the working power of the cooling device, the predicted internal temperature corresponding to the diaphragm booster pump, the minimum liquid flow rate of the working liquid in the infusion pipeline, and the original temperature of the working liquid in the infusion pipeline of the diaphragm booster pump, a predicted temperature of the working liquid in the infusion pipeline after a unit time corresponding to a combination of the predicted internal temperature corresponding to the diaphragm booster pump and the minimum liquid flow rate of the working liquid in the infusion pipeline is obtained, and the predicted temperature of the working liquid in the infusion pipeline after a unit time is recorded as the predicted temperature of the working liquid in the infusion pipeline; The predicted temperature of the working liquid in the infusion pipeline is analyzed and compared with the critical temperature corresponding to the working liquid in the infusion pipeline. If the predicted temperature of the working liquid in the infusion pipeline is lower than the critical temperature corresponding to the working liquid in the infusion pipeline, the working power of the cooling device is reduced and regulated to ensure that the predicted temperature of the working liquid in the infusion pipeline is lower than the critical temperature corresponding to the working liquid in the infusion pipeline, and at the same time, the minimum working power of the cooling device after the corresponding regulation is obtained; If the predicted temperature of the working liquid in the infusion pipeline is greater than or equal to the critical temperature corresponding to the working liquid in the infusion pipeline, the working power of the cooling device corresponding to the diaphragm booster pump is increased and regulated to ensure that the predicted temperature of the working liquid in the infusion pipeline is less than the critical temperature corresponding to the working liquid in the infusion pipeline. At the same time, the minimum working power of the cooling device after the corresponding regulation is obtained, and the minimum working power of the cooling device after the corresponding regulation and the minimum working power of the heat dissipation device after the corresponding regulation are recorded as the regulation results of the diaphragm booster pump.

2. A control system for a diaphragm booster pump according to claim 1, characterized in that: The specific implementation method of the liquid parameter acquisition module is as follows: Establish a data extraction relationship between the liquid parameter acquisition module and the database, and extract the physical and chemical information corresponding to each type of liquid stored in the database, wherein the physical and chemical information includes the thermal conductivity coefficient of each type of liquid, the critical temperature of each type of liquid, and the liquid density and liquid viscosity corresponding to each type of liquid at each temperature; Obtain the working log of the diaphragm booster pump, and obtain the liquid type of the corresponding working liquid of the diaphragm booster pump through the working log of the diaphragm booster pump; The temperature of the working liquid in the infusion pipeline of the diaphragm booster pump is obtained by monitoring the preset temperature sensor in the infusion pipeline of the diaphragm booster pump, and recorded as the original temperature of the working liquid in the infusion pipeline of the diaphragm booster pump; The physical and chemical information corresponding to the working liquid in the diaphragm booster pump is obtained according to the original temperature of the working liquid in the infusion pipeline of the diaphragm booster pump and the liquid type of the working liquid corresponding to the diaphragm booster pump; The original liquid flow rate of the working liquid in the infusion pipeline of the diaphragm booster pump is obtained by monitoring the flow rate flow meter preset in the infusion pipeline of the diaphragm booster pump; The original temperature and original liquid flow rate of the working liquid in the diaphragm booster pump delivery pipeline are recorded as liquid parameters of the working liquid in the diaphragm booster pump.

Citation Information

Patent Citations

  • Instantaneous volume measurement system and method for non-invasively measuring liquid parameters

    US5421208A