Electrodeionization Apparatus Dual-Side Water Supply
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electrodeionization apparatuses experience increased differential pressure during water passage, leading to higher electric power consumption and a risk of water leakage, due to decreasing water pressure in inflow branch pipes and subsequent pressure imbalances.
Innovation Solution
The apparatus supplies water to be treated from both sides of the inflow line, reducing the total distance between desalination chambers and the supply side, and discharges treated water from both sides of the outflow line, with an optional central partition in the outflow line to further alleviate pressure differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If water is supplied from one side through sequentially branched inflow pipes to multiple desalination chambers, then the apparatus structure is simple, but the differential pressure increases due to decreasing water pressure along the flow path
Solution Approach 1:
The inflow line is divided into multiple supply points located at different positions (both sides of the apparatus) to segment the water supply path. This segmentation allows water to be supplied to multiple desalination chambers from different locations simultaneously, reducing the pressure drop along any single path and thereby suppressing differential pressure increase.
2Volume of moving object
If water pressure decreases in inflow branch pipes due to long flow path, then the apparatus can be compact, but electric power consumption increases and water leakage risk increases
Solution Approach 1:
The water supply approach transitions from a one-dimensional sequential path to a two-dimensional distribution network with supply points on both sides of the apparatus. This dimensional change creates shorter and more balanced flow paths to each desalination chamber, reducing the overall pressure drop and energy consumption while maintaining compact apparatus dimensions.
3Device complexity
If water pressure decreases in inflow branch pipes, then the apparatus structure remains simple, but the risk of water leakage increases
Solution Approach 1:
Different supply locations (both sides of the apparatus) are utilized to provide locally optimized water pressure to each desalination chamber. This local quality approach ensures that each chamber receives adequate pressure without requiring excessive pressure at the main supply point, thereby reducing leakage risk while keeping the overall structure simple.
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 stabilizes the operation, reduces the risk of water leakage, and improves the durability of the apparatus by suppressing the increase in differential pressure during water passage.
Implementation Method 1
impurity ions in the water to be treated are adsorbed by the ion exchange resin in the desalination chamber
Implementation Method 2
the ions move to the concentrating chamber by the direct current being passed
Data Source
AI summary
Inflow branch pipes of water to be treated, which are branched from an inflow line of the water to be treated, which is provided on an upper side of desalination chambers of an electrodeionization apparatus, communicate with the desalination chambers, respectively. Both ends of the inflow line of the water to be treated are opened, and a supply pipe of the water to be treated communicates with each of the ends so that the water to be treated can be supplied from both sides. In addition, in a lower side of each of the desalination chambers, outflow pipes of treated water, communicate with each other, and these outflow pipes each join an outflow line of the treated water. In addition, both ends of the outflow line of the water to be treated are opened so that the treated water can be discharged from both sides. According to such an electrodeionization apparatus, it is possible to suppress an increase in a differential pressure during passage of water.