Hydrophilic Powder Absorption Device with Segmented Cells
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Solution Overview
Problem
Existing flood control solutions, such as sandbags and hydrophilic powder envelopes, face issues with uneven absorption, agglomeration of powder, and uncontrollable absorption capacity, leading to inefficient water retention during floods.
Innovation Solution
A device with a liquid-permeable envelope containing hydrophilic powder, where strong and weak bonds are used to create cells that limit agglomeration and control absorption, ensuring a homogeneous shape and increased absorption capacity, with the weak bonds breaking to allow liquid absorption without dispersing the powder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If hydrophilic powder is contained in a liquid-permeable envelope, then the absorption capacity increases, but the powder tends to accumulate in corners and form agglomerates, resulting in variable and uncontrollable absorption capacity
Solution Approach 1:
The envelope is divided into multiple compartments that segment the hydrophilic powder into separate sections. This segmentation prevents the powder from migrating and agglomerating in corners, ensuring uniform distribution and consistent absorption capacity across different envelopes.
Solution Approach 2:
The envelope structure incorporates specific local features such as corner stiffeners and controlled permeability zones that regulate powder distribution locally. These local quality modifications prevent agglomeration at critical areas while maintaining overall absorption efficiency.
2Quantity of substance
If hydrophilic powder absorbs liquid, then the envelope swells, but the swelling is uneven, creating infiltration routes between stacked envelopes that hinder barrier efficiency
Solution Approach 1:
The envelope is divided into multiple compartments that segment the hydrophilic powder into separate sections. This segmentation prevents the powder from migrating and agglomerating in corners, ensuring uniform distribution and consistent absorption capacity across different envelopes.
Solution Approach 2:
The envelope structure incorporates specific local features such as corner stiffeners and controlled permeability zones that regulate powder distribution locally. These local quality modifications prevent agglomeration at critical areas while maintaining overall absorption efficiency.
3Reliability
If sand bags are used to contain flood water, then the water retention capability is achieved, but the bags must be filled and positioned manually, making the process time-consuming and tedious
Solution Approach 1:
The hydrophilic powder is pre-contained in ready-to-use envelopes with controlled permeability structures. These envelopes require no manual filling or assembly during deployment - users simply position them and the powder automatically absorbs water upon contact, dramatically accelerating the response time compared to manual sandbag filling.
Solution Approach 2:
The hydrophilic powder automatically absorbs water and swells upon contact, self-regulating its absorption process without requiring manual intervention. The envelope structure self-adjusts to contain the swollen powder uniformly, eliminating the need for human operation during the absorption process.
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 solution provides a more efficient and controlled absorption of liquids, forming a stable and effective water-retaining barrier with a homogeneous shape, enhancing the ability to contain floods and reducing the weight and volume of the absorption device.
Implementation Method 1
a hydrophilic powder contained in a liquid-permeable envelope
Implementation Method 2
the powder absorbs a liquid
Implementation Method 3
each cell enclosing a sufficient quantity of powder to cause the break of the first weak bonds delimiting the cell, when the powder absorbs a liquid
Data Source
AI summary
The absorption device includes a hydrophilic powder and a casing which is permeable to a liquid, the casing being composed of an upper layer which is superimposed on a lower layer, the lower and upper layers being connected to each other by strong connections which delimit a confinement zone for the hydrophilic powder in the casing. Advantageously, the lower and upper layers are connected to each other by first weak connections. The first weak connections delimit a plurality of adjacent cells in the confinement zone, each cell enclosing a quantity of hydrophilic powder sufficient to bring about the breakage of the first weak connections which delimit the cell when the hydrophilic powder absorbs a liquid.