Self-Actuating Debris Removal Device for Irrigation Punch Plates

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Solution Overview

Problem

Existing solutions for debris removal from punch plates in irrigation systems require manual intervention, leading to increased maintenance costs and potential water loss due to clogging, especially in remote locations where timely maintenance is challenging.

Innovation Solution

A self-actuating debris removal device equipped with a motor, pump, and scraping blade that automatically clears debris from punch plates by extending a cylinder to push a scraping blade along the plate's surface, triggered by timers or flow sensors, and powered by batteries or solar panels, allowing for efficient debris removal and prevention of clogging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual debris removal from punch plates is performed, then debris can be removed from the plate surface, but maintenance time and costs increase particularly in remote locations

Engineering Contradiction:

Improvewater flow continuityVSAvoidmaintenance time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system employs a self-actuating debris removal device that automatically cleans the punch plate without requiring manual intervention. A sensor detects debris accumulation and triggers a motorized scraping blade to remove the debris, enabling the system to service itself and eliminate maintenance time losses.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The device performs preliminary debris removal before the punch plate becomes completely clogged. The sensor continuously monitors the plate surface and initiates cleaning cycles proactively, preventing the harmful effect of complete clogging before it occurs.

Inventive Principle:

Principle #10Preliminary action

2Productivity

If manual debris removal is delayed in remote locations, then water flow can be significantly impeded, but frequent manual maintenance increases operational costs

Engineering Contradiction:

Improvewater transport efficiencyVSAvoidmaintenance system complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The system replaces manual mechanical cleaning with an automated electromechanical system. A motor drives a scraping blade mechanism that mechanically removes debris, substituting human labor with an automated mechanical system that operates independently in remote locations.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

A sensor provides feedback about debris accumulation on the punch plate to a controller. When the sensor detects sufficient debris buildup, it triggers the motorized scraping mechanism to clean the plate, creating a closed-loop feedback system that maintains water flow efficiency automatically.

Inventive Principle:

Principle #23Feedback

3Reliability

If debris accumulates on punch plates, then water flow through perforations is blocked, but continuous manual monitoring and cleaning increases maintenance burden

Engineering Contradiction:

Improveperforation flow capabilityVSAvoidmaintenance operation ease

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The punch plate cleaning system services itself automatically through sensor detection and motorized blade activation, eliminating the need for operators to manually monitor and clean the plate, thereby maintaining flow capability without increasing maintenance burden.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

A sensor acts as an intermediary between the punch plate and the cleaning mechanism. The sensor detects debris accumulation and mediates the activation of the motorized scraping blade, automating the monitoring and cleaning functions that would otherwise require manual operator intervention.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 effectively reduces maintenance needs and water loss by automatically removing debris, ensuring continuous water flow and minimizing the accumulation of debris in pipes and nozzles, while allowing for manual removal of larger debris.

Implementation Method 1

a motor and pump which extends a cylinder or other like structure that pushes a scraping blade along the surface of a pre-positioned punch plate thereby scraping off any debris

Methodology Applied

Scientific EffectMechanical Force: Mechanical Force

Implementation Method 2

the scraping blade forces the debris off the punch plate when it contacts a fixed cleaning blade or bar (thereby scraping the debris off over the cleaning bar)

Methodology Applied

Scientific EffectFriction: Friction

Implementation Method 3

An appropriately placed end-limit switch is activated on contact with the cleaning-blade (bar), which reverses and returns the scraping-blade to its original starting position

Methodology Applied

Scientific EffectElectrical Contact: Electrical Resistance