Pulsating Irrigation Device Using Gas Compression for Energy Efficiency
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Solution Overview
Problem
Conventional irrigation systems require high flow rates to achieve similar distance coverage, leading to increased energy consumption and operational expenses, while existing pulsating devices struggle with maintaining efficient pulsation due to gas dissolution and pressure equilibrium issues.
Innovation Solution
A pulsating device with a chamber that compresses incoming liquid to increase pressure, using a valve to control liquid pulses and an outlet gate for gas exchange, ensuring continuous operation and efficient pulse formation by allowing gas replenishment when pressure drops.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If conventional irrigation systems use high flow rates to achieve distance coverage, then the liquid can reach large distances, but energy consumption increases
Solution Approach 1:
The device converts continuous liquid flow into periodic pulsating flow, where liquid accumulates in the chamber and is released in intermittent high-flow pulses. This periodic ejection mechanism achieves the same distance coverage as continuous high-flow systems but with lower average flow rates, thereby reducing energy consumption.
Solution Approach 2:
The device changes the flow rate parameter from continuous high flow to intermittent high-flow pulses. By accumulating liquid and releasing it in controlled pulses, the system achieves high instantaneous flow rates for distance coverage while maintaining low average flow rates for energy efficiency.
2Productivity
If gas is compressed in the chamber to form liquid pulses, then pulsation efficiency is improved, but gas dissolution reduces pulsation effectiveness over time
Solution Approach 1:
The device introduces gas into the chamber before liquid flow begins, pre-establishing the gas cushion necessary for pulse formation. This preliminary action ensures that the compression mechanism is ready to immediately generate effective pulses when liquid enters, maximizing pulsation efficiency from the start.
Solution Approach 2:
Gas acts as an intermediary between the incoming liquid and the pulse ejection mechanism. The gas compressibility allows smooth energy transfer from liquid accumulation to pulse formation, maintaining reliable pulsation effectiveness even as some gas dissolves into the liquid over time.
3Productivity
If a valve is used to control liquid pulses by opening above threshold pressure Po and closing below threshold pressure Pc, then pulse formation is improved, but pressure equilibrium issues reduce continuous operation efficiency
Solution Approach 1:
The valve operates with pressure feedback control, automatically opening when pressure exceeds Po and closing when pressure drops below Pc. This feedback mechanism creates a self-regulating pulse formation system that maintains reliable operation over extended periods by continuously responding to pressure changes without external intervention.
Solution Approach 2:
The pressure differential between Po and Pc enables the valve to self-regulate pulse ejection without external control. The system uses its own pressure variations to trigger valve opening and closing, allowing continuous autonomous operation while maintaining effective pulse formation.
4Use of energy by moving object
If low flow rate liquid enters the chamber, then energy consumption is reduced, but the ejected pulses cannot reach large distances
Solution Approach 1:
The device accumulates liquid at low flow rates and releases it in periodic high-flow pulses. The intermittent ejection creates high instantaneous velocities that propel liquid to large distances, while the low average flow rate maintains energy efficiency throughout continuous operation.
Solution Approach 2:
The system transforms the flow rate parameter from continuously low to intermittently high. By accumulating liquid and releasing it in concentrated pulses, the device achieves high instantaneous flow rates for distance coverage while maintaining low average flow rates for energy efficiency.
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 device transforms low incoming fluid flow into high-flow pulses, reducing energy costs and maintaining pulsation efficiency by regulating gas and liquid flow, allowing for effective irrigation over extended periods.
Implementation Method 1
the liquid entering the chamber being adapted to compress the gas and decrease the volume that the gas occupies in the chamber and increase the pressure in the chamber
Implementation Method 2
a valve that is adapted to open above a first threshold pressure Po within the chamber to begin a liquid pulse that exists the chamber and after being opened to close below a second threshold pressure Pc within the chamber to end the liquid pulse exiting the chamber
Implementation Method 3
an outlet gate that communicates between the interior and the exterior of the chamber, and the liquid in the chamber can exit the chamber via the outlet gate when the pressure in the chamber at the outlet gate is above zero
Data Source
AI summary
A pulsating device has a chamber for receiving liquid entering the device and gas that occupies an initial volume in the chamber. The liquid entering the chamber compresses the gas and decreases the volume occupied by the gas, thereby increasing the pressure in the chamber. A valve is provided to open above a first threshold pressure to begin a pulse of liquid. The valve closes below a second threshold pressure to end the pulse. The pulsating device has an outlet gate that permits liquid in the chamber to exit the chamber when the pressure in the chamber is greater than the pressure outside the chamber.