Double-Pipe Flow Distribution for Uniform Membrane Filter Pressure
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Solution Overview
Problem
Conventional water purification systems face inefficiencies due to uneven water pressure distribution across membrane filters, leading to premature filter clogging and unnecessary replacement costs, as well as vortex formation that reduces distribution efficiency.
Innovation Solution
A double pipe design with an outer tube and inner tube, featuring fluid supply holes and discharge holes, along with a resistance member to enhance fluid distribution, ensuring uniform pressure and volume distribution to all filters, preventing vortex formation and optimizing filter usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If source water is supplied to multiple membrane filters through a single supply channel, then the device structure is simple, but water pressure is uneven across filters causing unequal water volume distribution
Solution Approach 1:
The single supply channel is segmented into multiple distribution paths with individual flow control mechanisms. Each path can independently regulate water flow to its designated filter, enabling precise control of water pressure and volume distribution while maintaining overall structural simplicity.
Solution Approach 2:
Different sections of the distribution system are designed with locally optimized characteristics. Flow control valves or restrictors are installed at specific locations along distribution paths to compensate for pressure drops, ensuring each filter receives uniform water pressure despite varying distances from the main supply channel.
2Manufacturing precision
If valves are installed on distribution paths to regulate water flow to each filter, then water pressure uniformity is improved, but device complexity and installation costs increase
Solution Approach 1:
The flow control function is extracted from complex valve mechanisms and integrated into simpler flow control elements directly within the distribution paths. This reduces device complexity while maintaining the ability to regulate water flow and pressure uniformly across all filters.
Solution Approach 2:
The distribution system incorporates self-regulating flow control mechanisms that automatically balance water pressure without requiring external control valves. The system uses inherent flow characteristics and passive flow control elements to achieve uniform distribution, eliminating the need for complex active control systems.
3Manufacturing precision
If valves are used to regulate water flow, then water distribution uniformity is improved, but water pressure rises at certain portions causing corrosion and reduced device lifespan
Solution Approach 1:
The system changes the flow parameters by incorporating expansion chambers or reservoir sections in the distribution paths. These sections allow water to decelerate and equalize pressure before reaching filters, preventing high-pressure spikes that cause corrosion while maintaining uniform water distribution across all filters.
4Device complexity
If the inner inlet flow path end is open to discharge source water, then the structure is simple, but vortex formation reduces flow distribution efficiency
Solution Approach 1:
The harmful vortex flow is extracted and redirected through a separate discharge path. The inner inlet flow path end is configured to discharge water through a dedicated outlet that bypasses the vortex-prone region, eliminating vortex formation while maintaining simple structural design.
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 double pipe design significantly improves water purification efficiency by ensuring uniform water distribution across all filters, extending their lifespan and reducing replacement costs, while maintaining high distribution efficiency without vortices.
Implementation Method 1
a plurality of discharge holes formed on an outer surface thereof to discharge the fluid to the outside
Implementation Method 2
an outer tube with a plurality of fluid supply holes penetrated through an outer surface thereof in a length direction
Data Source
AI summary
The present invention relates to a double pipe and, more specifically, to a double pipe for uniformly distributing a flow, which can distribute as uniformly as possible a flow which should be distributed toward branch pipes thereof. The present invention relates to a double pipe for uniformly distributing a flow, and can be applied to a seawater desalination device or a water purification device using a membrane and can be thus employed in the water treatment plant industry.