Irrigation Mat With Flexible Non-Woven Diffusion Layer
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Solution Overview
Problem
Existing irrigation systems for green roofs and inclined surfaces face issues with water distribution regularity, weight, installation complexity, and root obstruction, often due to rigidity and thermal expansion, leading to high costs and inefficiencies.
Innovation Solution
A textile irrigation complex featuring a non-woven hydraulic diffusion sheet with laterally movable irrigation pipes secured by an open woven grid, allowing for thermal expansion and reduced weight, combined with a geo-spacer for drainage and insulation, and optional reinforcement for mechanical strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conduits are firmly secured to non-woven fabric sheets to prevent movement, then structural stability is improved, but thermal expansion causes pipe breakage or dislodging
Solution Approach 1:
The patent uses a flexible non-woven fabric sheet that can accommodate thermal expansion of pipes through its inherent flexibility and porosity. The fabric acts as a flexible matrix that holds pipes in position while allowing dimensional changes without causing breakage or dislodging.
Solution Approach 2:
The non-woven fabric structure naturally segments the support into multiple small contact points rather than continuous rigid fixation. This segmentation allows localized movement and expansion while maintaining overall structural stability.
2Reliability
If irrigation pipes are tightly enclosed to prevent root penetration, then root clogging is reduced, but installation complexity and weight increase
Solution Approach 1:
The non-woven fabric sheet serves as a flexible barrier layer that prevents root penetration while maintaining simplicity. Its continuous yet porous structure blocks roots effectively without requiring complex rigid enclosures or multiple sealing components.
Solution Approach 2:
The non-woven fabric sheet performs multiple functions simultaneously: it provides structural support, prevents root penetration, allows water diffusion, and accommodates thermal expansion. This multi-functionality reduces overall system complexity compared to separate components for each function.
3Reliability
If non-woven fabric sheets are used to secure pipes, then root penetration is prevented, but weight and manufacturing complexity increase
Solution Approach 1:
The non-woven fabric sheet provides effective root barrier protection with minimal weight due to its porous, low-density structure. The open weave allows water transmission while the continuous fiber network blocks root penetration, achieving high protection-to-weight ratio.
4Manufacturing precision
If rigid irrigation systems are used for uniform water distribution, then irrigation regularity is improved, but adaptability to sloping surfaces and thermal expansion decreases
Solution Approach 1:
The system transitions from rigid fixed pipes to dynamic flexible pipes that can move and adapt to thermal expansion and terrain variations. The flexible non-woven fabric support allows the irrigation network to dynamically adjust to environmental changes while maintaining functional performance.
Solution Approach 2:
Flexible irrigation pipes enclosed in or supported by non-woven fabric provide both uniform water distribution through controlled porosity and adaptability to sloping surfaces through flexibility. The fabric allows the pipes to conform to terrain while maintaining structural integrity for consistent irrigation.
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 solution enables uniform water distribution, reduced weight, and ease of installation on sloping surfaces, while preventing root intrusion and accommodating thermal expansion, resulting in efficient irrigation performance and cost-effectiveness.
Implementation Method 1
fixed to the non-woven hydraulic diffusion mat by thermal, ultrasonic, sewing, or gluing means
Implementation Method 2
a hydraulic diffusion mat made of a non-woven material
Implementation Method 3
the pipes or conduits are not fixed to said open grid... These abilities to move laterally result from the fact that the pipes or conduits are not fixed to the open grid
Data Source
Figure 1~2
Figure 3~4
Figure 5~6b
AI summary
This textile complex for irrigation comprises a fluid diffusion layer (2) made from a non-woven material, and a plurality of conduits or pipes (3) within which the water or irrigation liquid transits, secured to the fluid diffusion layer (2) by means of a woven, knitted or extruded open mesh fabric (4), which is fixed to said fluid diffusion layer (2) by thermal or ultrasonic means, or by sewing or gluing.