Drip Irrigation Emitter Clog Resistance via Segmented Inlet Gaps
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Solution Overview
Problem
Drip irrigation hoses tend to clog due to small particles in poor water quality getting trapped in the emitters, leading to dysfunction and the need for time-consuming flushing or replacement.
Innovation Solution
The design incorporates a drip irrigation tape with an emitter system featuring varying inlet gaps, pressure reducing sections, and outlet sections, including nonlinear rail portions and pressure responsive elements, which create staged flow path protection against clogging, allowing water to flow through sequentially activated inlet gaps, extending the functional life of the hoses before maintenance is required.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If emitters use small inlet openings to control water flow, then water distribution precision is improved, but clogging resistance deteriorates due to particle trapping
Solution Approach 1:
The emitter inlet is divided into multiple separate inlet members (first inlet member, second inlet member, etc.) with different opening sizes. This segmentation allows the system to handle different particle sizes independently, with smaller openings filtering fine particles and larger openings preventing clogging from larger particles, thus resolving the contradiction between precision and clogging resistance.
Solution Approach 2:
Different inlet members are assigned different local qualities (opening sizes) based on their position and function. The first inlet member has a smaller opening for precise water distribution, while the second inlet member has a larger opening for clogging prevention. This local differentiation allows each part to optimize its specific function without compromising the other.
2Quantity of substance
If emitter openings are made smaller to reduce water flow, then water consumption is reduced, but operational duration deteriorates due to faster clogging
Solution Approach 1:
The inlet system is segmented into multiple members with different opening sizes that activate sequentially. During normal operation, smaller openings control water consumption precisely. When these become clogged, larger openings automatically activate to maintain water flow, thereby extending operational duration without compromising water consumption control during the functional period.
Solution Approach 2:
Larger inlet openings are预先 (pre) configured in the system as backup pathways. Before clogging occurs in the smaller openings, the system already has larger openings ready to take over, preventing complete system failure and extending the operational duration between maintenance cycles.
3Reliability
If multiple inlet gaps with different sizes are implemented, then clogging resistance is improved through sequential activation, but device complexity increases
Solution Approach 1:
Multiple inlet members with different opening sizes are merged into a single integrated emitter body. The first inlet member, second inlet member, and other inlet members are all combined within one emitter structure, sharing common components such as the outlet section, pressure reducing section, and base. This merging approach increases clogging resistance through sequential activation while minimizing the increase in overall device complexity by reusing common structural elements.
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
This configuration effectively prevents clogging by allowing water to flow through finer gaps first, then switching to less fine gaps as they become occupied, thereby prolonging the operational time of the irrigation system until maintenance can be performed.
Implementation Method 1
a pressure reducing section, in fluid communication with the outlet section
Implementation Method 2
the first pressure reducing portion having a first pressure reducing configuration with at least a first resistance feature
Data Source
AI summary
An emitter includes at least one of: an inlet section including inlet members forming first and second openings having different sizes; a pressure reducing section including a first pressure reducing portion having a first pressure reducing configuration and a second pressure reducing portion having a second pressure reducing configuration being different; the pressure reducing section including at least one nonlinear rail portion; a pressure responsive section including at least one nonlinear rail portion; or a base including a first base portion having a first base configuration and a second base portion having a second base configuration being different, wherein at least one of the first base portion or the second base portion is positioned in one or more of the inlet section, the pressure reducing section, or an outlet section.