Alternating Tangential Flow Diaphragm Pump Control Unit
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Solution Overview
Problem
Conventional diaphragm pump systems lack precise control over the transition between positive and negative air flow and the amount of air flow, leading to complex structures that are difficult to manufacture and maintain, with air flow restrictions and inefficiencies in fluid transfer.
Innovation Solution
A control unit comprising a proportional pressure regulator, sensors to detect air flow, and a controller to manage the opening and closing of the regulator, allowing for precise control of air flow volume and duration to optimize diaphragm pump operation, including alternating positive and negative air flow for fluid transfer and filtration applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional diaphragm pump systems are used without precise air flow control, then the structure remains simple, but control precision over air flow transitions and volumes deteriorates
Solution Approach 1:
The patent implements feedback control by using sensors to detect air flow conditions and using this information to automatically adjust the proportional pressure regulator, enabling precise control of air flow transitions and volumes while maintaining systematic complexity through automated closed-loop control
Solution Approach 2:
The patent replaces conventional mechanical air flow control mechanisms with an electronically controlled proportional pressure regulator that responds to sensor feedback signals, substituting direct mechanical adjustment with electro-pneumatic control for improved precision
2Measurement precision
If precise air flow control is implemented using conventional methods, then air flow precision improves, but device complexity and difficulty of manufacture increase
Solution Approach 1:
The proportional pressure regulator serves multiple functions including precise air flow control, transition management between positive and negative pressure phases, and automated response to varying air flow conditions, reducing the need for separate control components and simplifying the overall system
Solution Approach 2:
The system achieves self-regulation through the proportional pressure regulator that automatically adjusts air flow based on sensor feedback without requiring manual intervention or complex external control systems, making the system easier to manufacture and maintain
3Productivity
If conventional air flow systems are used, then device simplicity is maintained, but air flow restrictions and inefficiencies worsen
Solution Approach 1:
The patent implements dynamic air flow control where the proportional pressure regulator continuously adjusts air flow rates based on real-time sensor feedback, optimizing fluid transfer efficiency during different operational phases while avoiding the restrictions inherent in fixed mechanical control systems
Solution Approach 2:
The system dynamically changes air flow parameters including volume, pressure, and transition timing through the proportional pressure regulator to optimize pumping efficiency for different operating conditions without requiring complex mechanical reconfiguration
Data Source
AI summary
A control unit includes a first connector configured to connect a proportional pressure regulator to a positive pressure supply and a second connector configured to connect the proportional pressure regulator to a negative pressure supply. The control unit further includes at least one sensor configured to detect an amount of air flow (volume per unit of time), positive or negative, within an air flow line connected to an output of the proportional pressure regulator, and a third connector configured to connect the air flow line to an air side of a diaphragm. Additionally, the control unit includes a controller programmed to control at least an opening and closing function of the proportional pressure regulator to attain a desired amount of air flow (volume per unit of time), positive or negative, within the air flow line.