Segmented Multi-Stage Screen Filter for Micro-Irrigation
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Solution Overview
Problem
Conventional micro-irrigation systems face issues with timely and accurate filtration warnings, energy consumption, and space utilization due to complex filter structures and the need for continuous water supply during cleaning, which are not adequately addressed by existing solutions.
Innovation Solution
A self-alarm multi-stage complex screen filter with a segmented housing, multi-stage screen filtering elements, and a segmented brush system that includes a differential pressure gauge connected to a PLC controller for remote monitoring and wireless communication, allowing for easy installation, disassembly, and continuous operation without stopping the irrigation system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple filters are connected in series for multi-stage filtration, then filtration accuracy and flow are improved, but space occupation and pipe connections increase, leading to higher cost and energy consumption
Solution Approach 1:
The patent combines multiple filtration stages into a single integrated filter device, merging several filter elements that would traditionally require separate filters connected in series. This consolidation achieves the same multi-stage filtration accuracy while significantly reducing space occupation and eliminating the need for multiple pipe connections between separate filters
Solution Approach 2:
The patent employs a nested structure where multiple filter elements are arranged concentrically within a single housing. The filter elements are positioned one inside another, creating a compact multi-stage filtration system that achieves high filtration accuracy without occupying large space, as each filter stage is nested within the previous one
2Ease of operation
If conventional screen filter cleaning is performed, then filter screen is cleaned, but water supply to the micro-irrigation system must be stopped or a parallel filter device connected
Solution Approach 1:
The filter device is segmented into multiple independent filtration stages, each with its own filter element. This segmentation allows individual filter elements to be cleaned or replaced without affecting the entire filtration system, enabling maintenance of one stage while other stages continue to provide filtration and maintain water supply to the irrigation system
Solution Approach 2:
The patent designs the multi-stage filtration system with bypass capabilities and redundant filter elements, ensuring that filtration function continues uninterrupted during cleaning operations. When one filter element requires cleaning, the system can switch to alternative pathways or remaining functional stages, maintaining continuous water supply and irrigation productivity
3Difficulty of detecting and measuring
If filter cleaning warning device using buzzer is used, then cleaning warning is achieved, but only nearby warning is possible and cannot achieve remote forewarning
Solution Approach 1:
The patent incorporates a differential pressure sensor that continuously monitors filtration status and provides feedback to a control system. When the pressure differential indicates the filter needs cleaning, the system automatically generates alerts through multiple channels including remote communication devices, ensuring timely notification to operators regardless of their location
Solution Approach 2:
The patent replaces traditional mechanical acoustic warning devices (buzzers) with electronic sensing and communication systems. Differential pressure sensors detect filtration status changes, and this information is transmitted through electrical and wireless communication systems to remote devices, enabling forewarning and notification capabilities that extend far beyond the immediate vicinity of the filter
4Adaptability or versatility
If two outfalls are provided in two-stage manual cleaning filter, then filtering stages are separated, but two outfalls need to be turned on separately and sequentially during flushing, reducing efficiency
Solution Approach 1:
The patent employs dynamically controllable valves and automated control systems that can rapidly switch between different outfall configurations. The system can dynamically adjust which outfalls are active and in what sequence, allowing flexible adaptation to different cleaning needs while maintaining high flushing efficiency through automated, rapid switching rather than manual sequential operation
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 solution provides convenient installation and maintenance, reduces energy consumption, and ensures continuous water supply during filter cleaning, with remote forewarning and warning capabilities, optimizing space utilization and reducing operational costs.
Implementation Method 1
A differential pressure gauge is provided between the water inlet and the water outlet. The differential pressure gauge is connected to a PLC controller.
Implementation Method 2
The PLC controller is provided with the alarm and an indicating light.
Data Source
AI summary
The present invention relates to a self-alarm multi-stage complex screen filter for micro-irrigation and the assembly method thereof. The filter comprises a housing, an alarm, a multi-stage screen filtering element, and a segmented brush. The housing comprises a left housing, a middle housing, and a right housing. The multi-stage screen filtering element comprises a plurality of screen filter cylinders. The segmented brush comprises a plurality of bristle frames, a plurality of connecting rods, a connector and a power device. The middle housing is provided with a water inlet. The left housing is provided with a discharge pipe. The installation, disassembly, repair, maintenance of the filter of the present invention can be done more conveniently.