Folding Sheet Box for Chemical Heat Storage Reactor
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In chemical heat storage reactors, the hydration expansion of heat storage materials can cause powder to enter water vapor flow paths, potentially blocking them and reducing heating efficiency.
Innovation Solution
A box configuration with filtration holes and second wall portions made from folded sheet material to prevent powder from entering the water vapor flow path, while maintaining structural integrity and ease of handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the heat storage material is allowed to expand during hydration reaction, then the chemical heat storage function is improved, but powder enters the water vapor flow path through gaps, causing flow path blockage and reducing heating efficiency
Solution Approach 1:
The box is divided into multiple wall portions (first wall portion with filtration holes, and second wall portions surrounding the aggregate body) that work together to segment the containment function, allowing each part to address specific aspects of powder prevention while maintaining overall expansion capability
Solution Approach 2:
The second wall portions act as an intermediary barrier between the expanding heat storage material and the water vapor flow path, intercepting powder particles before they can enter the flow path through gaps at the peripheral edges
2Reliability
If a box structure with filtration holes is used to prevent powder entry, then flow path integrity is improved, but the box becomes more complex and harder to manufacture
Solution Approach 1:
The box is constructed from a flexible sheet material that is folded into the required three-dimensional shape, allowing the complex structure with multiple wall portions and filtration holes to be manufactured through simple folding and joining operations rather than complex machining or assembly processes
Solution Approach 2:
The sheet material undergoes a parameter change from a flat two-dimensional form to a three-dimensional folded structure, transforming the manufacturing process from complex shaping operations to simpler folding and joining operations while maintaining the required structural complexity
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 effectively suppresses powder from entering the water vapor flow path, maintaining flow path integrity and reducing reactivity loss, thus enhancing heating efficiency and handling convenience.
Implementation Method 1
plural filtration holes formed in the first wall portion that allow passage of water vapor from the flow path to the aggregate body while restricting the powder from penetrating into the flow path
Implementation Method 2
at least one of either a corner portion between two of the second wall portions or a corner portion between the first wall portion and one of the second wall portions is formed, wherein a mating portion is provided by overlapping the sheet material
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
Powder of a heat storage material (30A, 30B) is suppressed from getting into a flow path (27A, 27B) of water vapor. A box (28, 40) is configured with a first wall portion (46) disposed between the water vapor flow path (27A, 27B) and an aggregate body of the powder, a plurality of filtration holes (50) formed in the first wall portion (46) that allow passage of water vapor from the flow path (27A, 27B) to the aggregate body while restricting the powder from penetrating into the flow path (27A, 27B); and a plurality of second wall portions (41, 42, 43, 44) disposed along a peripheral edge of the first wall portion (46) and surrounding the aggregate body. The first wall portion (46) and the second wall portions (41, 42, 43, 44) are configured by folding a sheet material (60, 160), such that at least one of either a corner portion between two of the second wall portions (41, 42, 43, 44) or a corner portion between the first wall portion (46) and one of the second wall portions (41, 42, 43, 44) is formed.