Air separation device and refrigerating and freezing device
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current air separation technologies for refrigerating and freezing devices are large and costly, limiting their application to small-scale or individual use, and existing methods for reducing oxygen levels in refrigerators are cumbersome and inefficient.
Innovation Solution
A compact air separation device with a support frame and oxygen-enriching membrane that reduces oxygen levels in a storage space, using a specific design to enhance gas flow and membrane support, allowing for a nitrogen-rich oxygen-lean atmosphere to extend food freshness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional nitrogen generating devices are used to create nitrogen-rich oxygen-lean atmosphere for freshness-keeping, then the oxygen removal effect is significant, but the device size becomes large and cost increases
Solution Approach 1:
The patent extracts only the essential function of oxygen removal from complex traditional nitrogen generation systems. By using a selective oxygen absorption material that directly absorbs oxygen from air, the system eliminates the need for large-scale nitrogen generation equipment while achieving the same oxygen removal effect.
Solution Approach 2:
The patent replaces complex mechanical nitrogen generation systems with a simpler chemical absorption system. Instead of using mechanical compressors and separation units, the invention uses oxygen absorption material that passively or actively absorbs oxygen through chemical reactions, significantly reducing device complexity and size.
2Object-affected harmful factors
If vacuum freshness-keeping is used to reduce oxygen content, then oxygen removal is achieved, but operation becomes troublesome and inconvenient
Solution Approach 1:
The patent implements self-service by designing an oxygen absorption system that automatically removes oxygen from the storage space without requiring user intervention for vacuum pumping or complex operation. The oxygen absorption material can be placed in the storage space and automatically absorbs oxygen, or is activated by simple user actions such as closing a valve or turning on a fan.
3Object-affected harmful factors
If deoxidating devices utilizing electrolyte are used for oxygen removal, then oxygen content is reduced, but the device structure becomes complicated and deoxidating effect is not obvious
Solution Approach 1:
The patent employs disposable or replaceable oxygen absorption materials that are simple in structure but effective in function. These materials can be replaced periodically without requiring complex device structures, maintaining simplicity while achieving significant oxygen removal effects.
Solution Approach 2:
The patent uses porous oxygen absorption materials that provide large surface area for oxygen absorption while maintaining compact structure. The porous structure allows efficient oxygen diffusion and absorption, achieving significant deoxidating effects with simple and compact device design.
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 device effectively reduces oxygen levels, slowing down food spoilage and maintaining freshness by creating a nitrogen-rich environment, suitable for household use while being compact and efficient.
Implementation Method 1
an air separation membrane laid on the support surface of the support frame and configured to enable more of a specific gas than other gases in airflow in the space around the air separation device to enter the enriched-gas collection chamber through the air separation membrane
Data Source
AI summary
An air separation device and a refrigerating and freezing device. The air separation device comprises a support frame and an air separation membrane, wherein a supporting surface with a channel and an enriched-gas collection chamber communicated with the channel are formed in the support frame. The air separation membrane laid on the support surface of the support frame and configured to enable more of a specific gas than other gases in airflow of the space around the air separation device to enter the enriched-gas collection chamber through the air separation membrane. According to the air separation device provided by the present invention, the support frame is specially designed to adopt the structure provided with the support surface and the enriched-gas collection chamber, the channel communicated with the enriched-gas collection chamber is formed on the support surface, and the air separation membrane is disposed on the support surface.