Carbon Dioxide Recovery Heat Exchangers With Deformable Seals
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Solution Overview
Problem
Existing carbon dioxide recovery apparatuses face challenges in efficiently attaching and detaching heat exchangers, which leads to increased operational time and effort, and result in gaps that reduce the carbon dioxide recovery rate due to large dimensional tolerances in brazed aluminum parts.
Innovation Solution
The apparatus incorporates an adsorbent holder with a support plate and seal portion that allows for slidable insertion, using foamable materials for the seal portion and a guide member to facilitate efficient attachment and detachment, while maintaining thermal efficiency through insulation and sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If heat exchangers are formed by brazing aluminum parts, then structural reasons are satisfied, but large dimensional tolerance occurs resulting in gaps between casing and heat exchanger
Solution Approach 1:
A flexible seal member is introduced between the heat exchanger and the casing to compensate for dimensional gaps caused by brazing tolerances. The seal member deforms to fill the gap, ensuring proper sealing without requiring high manufacturing precision in the brazed aluminum parts.
2Ease of repair
If heat exchanger replacement requires removal of other assembled components, then heat exchanger can be replaced, but considerable time and effort is required for attachment and detachment
Solution Approach 1:
The heat exchanger is designed as a separable component that can be independently removed from the casing without disassembling other parts. The support structure is segmented to allow the heat exchanger to be detached while other components remain assembled, significantly reducing maintenance time and effort.
3Ease of manufacture
If gaps exist between casing and heat exchanger due to dimensional error, then manufacturing is easier, but amount of air passing through adsorbent decreases and carbon dioxide recovery rate is reduced
Solution Approach 1:
The flexible seal member eliminates gaps between the heat exchanger and casing, ensuring optimal air flow paths through the adsorbent. This maintains high carbon dioxide recovery rates while allowing the use of brazed aluminum construction for ease of manufacture.
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 enables quick and efficient replacement of heat exchangers, reduces air leakage, and enhances thermal efficiency by minimizing gaps and heat loss, thereby improving carbon dioxide recovery rates.
Implementation Method 1
a seal portion (e.g., a seal portion 75 described later) disposed on the adsorbent holder and capable of being deformed to follow the receiving portion when the adsorbent holder is slidably inserted into the receiving portion
Implementation Method 2
the seal portion may be made of a foamable material
Implementation Method 3
a heat exchanger that heats and cools an adsorbent
Implementation Method 4
a heat exchanger that heats and cools an adsorbent
Implementation Method 5
a plurality of adsorbents for adsorbing carbon dioxide are disposed in layers on an adsorbent holding member
Data Source
AI summary
Provided is a carbon dioxide recovery apparatus including an adsorbent holder that holds an adsorbent and can be efficiently attached and detached, and capable of achieving high thermal efficiency. A carbon dioxide recovery apparatus includes: heat exchangers (adsorbent holders) holding an adsorbent; support plates (supports) each having a first receiving portion and a second receiving portion into which the heat exchangers are able to be slidably inserted; and seal portions disposed on the heat exchangers and capable of being deformed to follow the first receiving portion 81 and the second receiving portion when the heat exchangers are slidably inserted into the first receiving portion and the second receiving portion. The heat exchangers are supported by the support plate via the sealing portions.