Aquarium Filter Dividing Flow Path for Filtration Speed
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Solution Overview
Problem
Existing aquarium filters face a challenge in reconciling optimal biological and chemical filtration with reduced water recirculation time, often resulting in non-optimal performance due to either excessively fast or slow water flow.
Innovation Solution
The filter unit divides the fluid path into subpaths, allowing for extended contact time in chemical-biological filters while maintaining high water recirculation speed through a mechanical filter, using cartridges with strategically placed apertures to manage flow and incorporating additional filters for enhanced purification, including a percolator for improved oxygenation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the water flow speed is reduced to allow optimal biological and chemical filtration, then the filtration effectiveness is improved, but the recirculation time becomes excessively long
Solution Approach 1:
The fluid path is divided into multiple subpaths: a first subpath for mechanical filtration and a second subpath for chemical-biological filtration. This segmentation allows water to be distributed across different filtration stages with different flow requirements, enabling optimal filtration effectiveness while maintaining acceptable recirculation times through parallel processing of different filtration types.
Solution Approach 2:
Different sections of the filter system are designed with different flow characteristics suited to their specific functions. The mechanical filtration section operates at higher flow speeds while the chemical-biological filtration section operates at lower flow speeds, allowing each stage to function optimally without compromising the overall system performance.
2Productivity
If the water flow speed is increased to reduce recirculation time, then the recirculation efficiency is improved, but the filtration effectiveness of biological and chemical filters deteriorates
Solution Approach 1:
By segmenting the filtration system into mechanical and chemical-biological subpaths, the invention allows high-flow-rate mechanical filtration to proceed in parallel with low-flow-rate chemical-biological filtration. This enables the system to maintain high overall productivity while ensuring that biological and chemical filters receive sufficient contact time for effective filtration.
Solution Approach 2:
The invention introduces a dimensional approach by creating parallel fluid paths rather than a single sequential path. This allows the system to handle water volume in multiple dimensions simultaneously - high flow through mechanical filter while maintaining slow flow through biological/chemical filters - thereby resolving the contradiction between productivity and filtration effectiveness.
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 ensures effective filtration with reduced recirculation time, facilitating easy maintenance and improved purification efficiency by optimizing the flow through each filtration stage, including mechanical, biological, and chemical processes.
Implementation Method 1
The body arranged for mechanical filtering of the water, generally synthetic sponge or wool, intercepts the coarser impurities present in the liquid flow which traverses the filter unit.
Implementation Method 2
The filter body intended for biological filtering is instead formed, in some of the filter units according to the prior art, by a bed of tubes, i.e. small cylinders in a ceramic material designed to be colonised by bacteria, which in turn perform the actual purification of the water, transforming the waste substances generated by the organisms present in the aquarium into innocuous compounds.
Implementation Method 3
The filter body intended for chemical filtering (also known as adsorbent filtering) is normally activated carbon. Its function is that of absorbing some noxious elements, eliminating them from the filtered water.
Data Source
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AI summary
Filter unit for aquariums (1), which allows a high efficiency of chemical-biological filtering with reduced times of recirculation of the water, comprising: a container (10), provided with a fluid inlet (11) and a fluid outlet (12) to allow the fluid communication thereof with an aquarium tank; pumping means intended for the circulation of a liquid flow inside said container (10) between said fluid inlet (11) and said fluid outlet (12) along at least one main path (100); a first filter (30), arranged to intercept all of the liquid flow which follows said main path (100), performing on it at least one mechanical filtering action; at least one second filter (40) arranged to perform at least one filtering action other than the mechanical one; said main path (100) dividing into at least one first slow subpath (100b) and a fast subpath (100a), said second filter (40) being arranged to intercept, slowing it down, only the part of the liquid flow which follows the first slow subpath (100b), the part of liquid flow which follows the fast subpath (100a) bypassing said second filter (40) without being slowed down by it.