Oscillating Irrigation System With Flexible Drop Lines
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Solution Overview
Problem
Agricultural irrigation systems face inefficiencies such as high water loss due to evaporation and uneven water distribution, leading to flooding and under/overwatering issues, despite advancements like Dragon-Line and LEPA systems which still have limitations in water conservation and equipment durability.
Innovation Solution
The proposed irrigation system employs a center pivot or wheel line system with adjustable water application footprints, flexible drop lines, and a controller for oscillating movements to minimize evaporation and flooding, using fittings and nozzles to optimize water distribution and pressure, allowing for efficient irrigation across varying crop heights and soil types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If traditional center pivot or wheel line irrigation systems are used, then water can be distributed to crops, but significant water loss occurs due to evaporation and uneven distribution leading to flooding and under/overwatering
Solution Approach 1:
The irrigation system divides water distribution into multiple segments using individual controllable nozzles along the lateral lines. Each nozzle can be independently controlled to deliver precise amounts of water to specific zones, eliminating the need for high-pressure uniform distribution that causes evaporation loss. This segmentation allows water to be applied at low pressure directly where needed, significantly reducing evaporative loss while maintaining irrigation productivity.
Solution Approach 2:
The system implements local quality control by allowing different nozzles or zones to receive different water application rates based on local soil conditions, crop needs, and topography. Sensors and controllers adjust water delivery locally rather than uniformly across the entire field, preventing both flooding in low-need areas and underwatering in high-need areas, thereby eliminating water waste while maintaining high irrigation efficiency.
2Productivity
If high water application rates are used to cover large areas quickly, then irrigation speed increases, but flooding occurs and water distribution becomes uneven
Solution Approach 1:
The irrigation system employs dynamic control where water application rates, nozzle activation patterns, and lateral line positions are continuously adjusted based on real-time sensor feedback from the field. This dynamic adaptation allows the system to maintain optimal water distribution uniformity while moving at high speeds, as the system can respond to changing soil moisture conditions, crop needs, and environmental factors during operation, preventing flooding while maintaining irrigation productivity.
Solution Approach 2:
The system uses periodic action by cycling nozzle activation in sequences along the lateral lines rather than applying water continuously across the entire span simultaneously. This staggered, periodic water application allows each zone to receive appropriate water amounts at controlled intervals, preventing flooding while maintaining overall irrigation speed and productivity across the field.
3Reliability
If rigid lateral lines are used to maintain structural stability, then equipment durability improves, but the system cannot adapt to varying crop heights and terrain conditions
Solution Approach 1:
The system replaces rigid lateral lines with flexible hoses that can bend and conform to varying terrain and crop heights while maintaining structural integrity. These flexible lines are supported by adjustable towers and braces that provide stability without requiring the entire lateral structure to be rigid. This allows the irrigation system to adapt to different field conditions and crop growth stages while maintaining equipment durability through proper support and protection of the flexible components.
Solution Approach 2:
The irrigation system implements dynamic adjustability where lateral line heights, tower positions, and support structures can be modified during operation to accommodate varying crop heights and terrain variations. This dynamic configuration capability allows the system to maintain both structural stability through proper support and adaptability to changing field conditions, resolving the contradiction between durability and versatility.
4Productivity
If conventional irrigation systems operate continuously, then water application is maintained, but energy consumption and equipment wear increase
Solution Approach 1:
The irrigation system uses periodic action by activating nozzles in sequences along the lateral lines rather than operating all nozzles simultaneously continuously. This staggered operation reduces peak energy demands and allows pumps and motors to operate at lower average power levels while still maintaining continuous water application coverage across the field. The periodic activation patterns are coordinated to ensure uninterrupted water delivery while minimizing energy consumption and reducing equipment wear.
Solution Approach 2:
The system incorporates self-service through automated sensors and controllers that monitor soil moisture, crop needs, and environmental conditions, automatically adjusting water application rates and timing without continuous human intervention or high-energy operation. This intelligent control optimizes energy usage by applying water only when and where needed, maintaining productivity while minimizing energy consumption and extending equipment life through reduced operational stress.
Data Source
AI summary
An agricultural irrigation system and method for irrigating a field includes a water supply pipe supported by a wheeled support or tower. The irrigation system can move in an oscillating fashion across the field while dispersing water. The irrigation system is advanced in a forward direction a first distance, reversed in a backward direction a second distance that is less than the first distance, then readvanced in a forward direction. The system can include a manifold connected to the water supply pipe. The manifold includes drop lines to supply water to a crop below the manifolds. Existing irrigation systems can be retrofitted with the manifold and drop lines.