Air Efficiency Device for Diaphragm Pump Air Savings
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Solution Overview
Problem
Existing air-operated diaphragm pumps are inefficient in using compressed air, as they do not effectively minimize air consumption based on changing fluid characteristics during operation.
Innovation Solution
An air efficiency device that utilizes velocity and position sensing of diaphragm assemblies to control compressed air supply, optimizing air usage by defining turndown positions and adjusting air flow to maintain efficient pump operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If compressed air supply is continuously maintained at high level to ensure pump operation, then pump reliability is improved, but compressed air consumption increases
Solution Approach 1:
The control system dynamically adjusts the compressed air supply to the diaphragm pump based on real-time monitoring of diaphragm position and velocity. The system transitions from static continuous high-level air supply to dynamic variable air supply, optimizing the balance between pump reliability and compressed air consumption by adapting air flow to actual operational needs.
Solution Approach 2:
The system implements a feedback control mechanism using sensors to monitor diaphragm position and velocity, which are fed back to the control system. This feedback loop enables the controller to adjust compressed air supply in response to actual pump operation conditions, ensuring reliable operation while minimizing unnecessary air consumption.
2Productivity
If compressed air supply is increased to maintain diaphragm velocity, then pump productivity is improved, but compressed air consumption increases
Solution Approach 1:
The system dynamically modulates compressed air supply based on real-time diaphragm velocity measurements. By adjusting air flow rates to match actual productivity requirements rather than maintaining constant high supply, the system optimizes the relationship between pump output and compressed air consumption.
Solution Approach 2:
The control system changes the parameter of compressed air supply pressure and flow rate based on monitored diaphragm velocity and position. This parameter adjustment allows the system to maintain required productivity levels while optimizing compressed air consumption by supplying air only at the levels necessary for current operational demands.
3Loss of energy
If compressed air supply is reduced to minimize consumption, then energy efficiency is improved, but pump speed control capability deteriorates
Solution Approach 1:
The feedback control system continuously monitors diaphragm position and velocity, enabling precise control of pump speed even at reduced compressed air supply levels. The system uses this feedback information to optimize the timing and duration of air pulses, maintaining speed control capability while minimizing overall air consumption.
Solution Approach 2:
The control system employs periodic pulsing of compressed air to the diaphragm rather than continuous supply. By carefully timing these periodic air pulses based on diaphragm position feedback, the system maintains effective speed control while significantly reducing total compressed air consumption compared to continuous high-level supply.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The air efficiency device reduces compressed air consumption by optimizing air flow, leading to improved pump efficiency and energy savings by dynamically adjusting air supply based on diaphragm velocity and position.
Implementation Method 1
utilizes velocity and position sensing of diaphragm assemblies to control compressed air supply
Implementation Method 2
utilizes velocity and position sensing of diaphragm assemblies to control compressed air supply
Implementation Method 3
As one of the diaphragm chambers is filled with the compressed air
Data Source
AI summary
One or more techniques and/or systems are disclosed for increasing compressed air efficiency in a pump that utilizes an air efficiency device in order to optimize the amount of a compressed air in the pump. The air efficiency device may allow for controlling the operation of the air operated diaphragm pump by reducing the flow of compressed air supplied to the pump as the pump moves between first and second diaphragm positions. A sensor may be used to monitor velocity of the diaphragm assemblies. In turn, full position feedback is possible so that the pump self-adjusts to determine the optimum, or close to optimum, turndown point of the diaphragm assemblies. As such, air savings are achieved by minimizing the amount of required compressed air.