MMVF Point Drain for Water Absorption and Dissipation
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Solution Overview
Problem
Existing drainage methods, such as using gravel or sand, have limited water-holding capacity and are prone to contamination with earth, requiring frequent replacement and active pumping of water, while also being costly and time-consuming to install. There is a need for a drain that can absorb and store water effectively, maintain capacity over time, and be environmentally acceptable and economical.
Innovation Solution
A point drain formed of a man-made vitreous substrate (MMVF) with bonded vitreous fibres and a cured binder composition, positioned in the ground with its longitudinal axis directed downwardly, allowing for absorption and dissipation of water into the ground, offering high water-holding capacity and buffering ability without contamination or need for replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If gravel is used for drainage, then water drainage is improved, but water-holding capacity is limited and gravel becomes contaminated with earth over time
Solution Approach 1:
The patent uses a porous ceramic material with controlled pore sizes to create a drain that both absorbs and filters water. The porous structure allows water to be drawn in through capillary action while the pore size distribution prevents earth particles from entering and clogging the drainage channels, solving both the drainage capacity and long-term reliability issues simultaneously
Solution Approach 2:
The drain comprises a composite structure with an outer shell made of ceramic material and an inner core of absorbent material. This composite design combines the filtration properties of ceramic with the high water-holding capacity of absorbent materials, enabling both effective drainage and sustained water storage without earth contamination
2Productivity
If sand is used for drainage, then water drainage is improved, but water-holding capacity is limited and sand becomes contaminated with earth over time
Solution Approach 1:
The patent uses a porous ceramic material with controlled pore sizes to create a drain that both absorbs and filters water. The porous structure allows water to be drawn in through capillary action while the pore size distribution prevents earth particles from entering and clogging the drainage channels, solving both the drainage capacity and long-term reliability issues simultaneously
3Productivity
If capillary layers are installed in the ground, then water drainage is improved, but installation is time-consuming and layers become mixed with surrounding earth
Solution Approach 1:
The patent divides the drainage system into discrete modular units that can be individually manufactured and then easily installed in the ground. Each module contains pre-assembled capillary layers, eliminating the need for time-consuming on-site layering while maintaining the drainage effectiveness of multi-layer capillary structures
Solution Approach 2:
The patent uses a flexible outer shell or wrapping that contains the capillary layers and prevents them from mixing with surrounding earth during installation and operation. This protective enclosure maintains layer integrity while allowing easy installation, solving both the installation complexity and long-term stability issues
4Quantity of substance
If drainpipe with apertures and absorbent rollers is used, then water absorption is improved, but earth blocks the pipe in areas without rollers
Solution Approach 1:
The patent employs a porous ceramic material with carefully controlled pore size distribution that allows water absorption throughout the entire pipe surface while preventing earth particle infiltration. The porous structure provides continuous water absorption capacity without the need for segmented rollers, eliminating the blocking issue while maintaining high water uptake
5Ease of operation
If gravel surrounds drainpipes, then water can run freely towards the drainpipe, but gravel capacity to hold water is limited
Solution Approach 1:
The patent replaces surrounding gravel with a porous ceramic material that has both high water storage capacity in its pore structure and high hydraulic conductivity to allow water to flow freely toward the drain. This single material solution provides both the water conduction pathway and the storage capacity that previously required separate gravel and pipe components
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 MMVF substrate effectively absorbs and stores water, gradually dissipating it back into the ground as needed, reducing the need for active water removal and maintaining high drainage efficiency over time, while being environmentally friendly and cost-effective.
Implementation Method 1
water which is in fluid communication with the point drain is absorbed by the MMVF substrate
Implementation Method 2
water is dissipated by the MMVF substrate into the ground
Data Source
AI summary
The present invention relates to a method of draining water comprising providing a point drain formed of a man-made vitreous substrate (MMVF substrate), wherein the MMVF substrate comprises man-made vitreous fibres bonded with a cured binder composition, wherein the point drain has a longitudinal axis which is parallel to the longest side of the point drain, positioning the point drain in the ground so that the longitudinal axis is directed downwardly, whereby water which is in fluid communication with the point drain is absorbed by the MMVF substrate, wherein water is dissipated by the MMVF substrate into the ground.