Floating Spray Backwash for Grey Water Filter Clogging
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Solution Overview
Problem
Existing grey water filtration systems often fail to prevent clogging of filters in irrigation systems, leading to inefficiencies and maintenance challenges, especially when dealing with grey water from residential sources.
Innovation Solution
A floating spray component is integrated into the tank to automatically backwash filters, preventing clogging by directing moderate to high-pressure water jets at the filter exteriors, combined with a robust system design including filter cartridges, carriers, tanks, lids, caps, secondary filters, and auto-fill mechanisms for reliable grey water treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If filters are used in grey water filtration systems, then water purification is improved, but filter clogging occurs leading to system failure
Solution Approach 1:
The backwash spray assembly performs preliminary cleaning action on the filters by directing high-pressure water jets at the filter exteriors to prevent clogging before it occurs. This preventive maintenance is automatically activated when the pump operates, cleaning the filters in advance to maintain system reliability.
Solution Approach 2:
The system performs self-maintenance through the automatic backwash function. When the pump operates to circulate grey water, the backwash spray assembly automatically activates to clean the filters, eliminating the need for manual intervention and ensuring continuous reliable operation without external service.
2Ease of repair
If manual filter cleaning is implemented, then filter maintenance is possible, but system downtime and maintenance complexity increase
Solution Approach 1:
The system performs self-maintenance through the automatic backwash function. When the pump operates to circulate grey water, the backwash spray assembly automatically activates to clean the filters, eliminating the need for manual intervention and ensuring continuous reliable operation without external service.
Solution Approach 2:
The backwash cleaning action occurs continuously during pump operation rather than requiring separate maintenance cycles. The high-pressure spray cleans the filters in real-time as the system operates, maintaining continuous useful action without interruption or downtime.
3Device complexity
If simple filtration is used, then system complexity is reduced, but filter clogging and maintenance needs increase
Solution Approach 1:
The backwash spray assembly is integrated with the existing pump and tank system, merging the cleaning function with the filtration system. The spray assembly uses the pump's operational water flow to generate backwash pressure, combining multiple functions into a unified system that reduces overall complexity while improving reliability.
Solution Approach 2:
The pump serves dual functions: circulating grey water through the filters and powering the backwash spray assembly to clean the filters. This multi-functionality eliminates the need for separate cleaning equipment, reducing system complexity while maintaining reliable filter 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 system effectively prevents filter clogging, ensuring continuous operation and reducing maintenance needs by automatically cleaning filters and providing a sturdy, reliable grey water treatment solution for irrigation systems.
Implementation Method 1
a floating spray component is provided in the tank to automatically backwash the filters to prevent clogging
Data Source
AI summary
Grey water is conveyed to a tank, passed through filters, and pumped to an irrigation system. A floating spray component is provided in the tank to automatically backwash the filters to prevent clogging, moving up and down as the level of water in the tank changes. The filters can be cylindrical and oriented vertically, and a removable, internal filter cartridge can mount the filters. The filters can be accessed through a top, above ground cap, and the carriage can be removed for access to other parts by removing a larger lid.