Multi-layer Water Distribution for Pool Filtration
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Solution Overview
Problem
Conventional particulate filters require a large occupation area and high investment cost due to their low filtering efficiency and inefficient use of space in water treatment processes for swimming pools and water parks, necessitating multiple tanks for ozone disinfection, silica sand filtration, and activated carbon adsorption.
Innovation Solution
A particulate filtering device with a multi-layer water distribution and collection structure that includes multiple water distribution and collection pipes, an upper water distribution pipe, ozone gas-water mixing pipe, back flushing and flushing drain-pipe, and a water pump, arranged in a tank with a filtering space and back flushing expansion space, allowing for efficient filtration, back flushing, ozone reaction, and activated carbon adsorption, optimizing space usage and reducing material requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional silica sand filters are used for water treatment, then the filtering function is provided, but the occupation area and investment cost increase significantly
Solution Approach 1:
The patent transforms the conventional single-layer horizontal filtration structure into a multi-layer vertical filtration structure. Multiple water distribution and collection pipes are arranged at different heights within the filtering space, creating layered filtration zones. This vertical dimensionality change allows the same filtering capacity to be achieved in a compact vertical footprint, dramatically reducing the horizontal occupation area while maintaining reliable filtering function.
Solution Approach 2:
The filtering space is segmented into multiple layers by dividing the water distribution and collection functions across several horizontal pipes at different elevations. Each layer handles a portion of the water flow, and the segmented structure allows independent operation and maintenance of each layer. This segmentation enables efficient space utilization and reduces the overall occupation area compared to a single large-scale conventional filter.
2Reliability
If multiple tanks are used for ozone disinfection and activated carbon adsorption, then complete water treatment is achieved, but the occupation area and investment cost increase
Solution Approach 1:
The patent merges multiple water treatment functions (filtration, ozone disinfection, activated carbon adsorption) into a single integrated tank structure. The multi-layer water distribution and collection pipes accommodate different treatment processes at different vertical levels within the same footprint, eliminating the need for separate tanks for each function. This merging achieves complete water treatment while minimizing occupation area and investment cost.
Solution Approach 2:
The filtering device is designed with multi-functionality to perform filtration, ozone reaction, and activated carbon adsorption within a single structure. The universal design allows the same tank and pipe system to support multiple treatment processes simultaneously, replacing the conventional requirement for multiple specialized tanks and reducing both occupation area and investment cost.
3Device complexity
If conventional single-layer filtration structure is used, then the structure is simple, but the filtering area and efficiency are limited
Solution Approach 1:
The patent introduces vertical layering to the filtration structure, arranging water distribution and collection pipes at multiple heights. This adds a vertical dimension to the traditionally horizontal single-layer structure, dramatically increasing the filtering area without proportionally increasing structural complexity. The multi-layer configuration allows more filtering media and larger contact area for water treatment within the same horizontal footprint, thereby improving filtering efficiency.
Solution Approach 2:
The filtration system is segmented into multiple functional layers, each with its own water distribution and collection pipes. This segmentation creates independent filtration zones that can operate simultaneously, increasing the total filtering area and efficiency. While the structure becomes more complex than a single layer, the modular segmented design maintains relative simplicity and enables efficient space utilization.
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 multi-layer structure increases filtering area by over three times, reduces the occupation area and filtering material usage, allows for more frequent back flushing, and enhances ozone reaction efficiency, thereby reducing chlorine consumption and disinfection by-product generation, while also serving as an activated carbon adsorption tank for oxidation and disinfection.
Implementation Method 1
to-be-filtered water flows into the particulate filter through a water inlet at the top of the particulate filter for being filtered by a filtering layer
Implementation Method 2
ozone is required to perform oxidation disinfection
Implementation Method 3
an activated carbon adsorption tank are required
Data Source
AI summary
A particulate filtering device with a multi-layer water distribution and collection structure and a method for using the same are provided. The device includes a tank where a filtering space and a back flushing expansion space are formed. An upper water distribution pipe is arranged above the back flushing expansion space and is in communication with an ozone gas-water mixing pipe. Ozone enters the back flushing expansion space through the upper water distribution pipe and mix with water for reaction. Exhaust gas is discharged from the top of the tank. Powdered activated carbon may enter the tank through the upper water distribution pipe, and is intercepted at a space above the filtering space to form an activated carbon layer, to absorb organics dissolved in the water and catalytically decompose ozone. At least three water distribution and collection pipes are arranged on a layer basis in the filtering space.