Apparatus of manufacturing aerogel sheet
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Solution Overview
Problem
Existing apparatus for manufacturing aerogel sheets face issues with non-uniform impregnation of silica sol precursors on the blanket surface, leading to defective products due to incomplete penetration and uneven thickness.
Innovation Solution
An apparatus featuring a rotation roller with injection nozzles that moves and adjusts height to uniformly distribute and gelate the silica sol precursor across the blanket surface, utilizing a supply device to mix and prepare the precursor, ensuring thorough impregnation and stable gelation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If silica sol precursor is injected to the blanket surface using conventional apparatus, then the manufacturing process can be completed, but the silica sol precursor is not uniformly impregnated on the outer portion of the blanket causing defective products
Solution Approach 1:
The injection system is segmented into multiple injection nozzles arranged along the rotation roller, allowing different regions of the blanket to receive precursor from different nozzles. This segmentation enables uniform distribution of silica sol precursor across the entire blanket surface, resolving the non-uniform impregnation issue.
Solution Approach 2:
The injection nozzles are mounted on a rotation roller that moves dynamically along the blanket length. This dynamic positioning allows the nozzles to traverse the entire blanket surface systematically, ensuring uniform impregnation from one end to the other, thereby improving both uniformity and product reliability.
2Manufacturing precision
If the rotation roller moves from one end to the other end of the blanket while rotating, then uniform impregnation is achieved, but the device complexity increases
Solution Approach 1:
The rotation roller serves multiple functions simultaneously: it holds the injection nozzles, provides rotational motion for uniform distribution, and moves linearly along the blanket length. This multi-functionality reduces the need for separate mechanisms, thereby achieving uniform impregnation without proportionally increasing device complexity.
Solution Approach 2:
The rotational motion and linear movement of the injection nozzles are merged into a single integrated system. The nozzles rotate while moving forward, combining two motion modes into one coordinated mechanism, which simplifies the overall device structure compared to using separate rotational and translational systems.
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 apparatus improves the quality of aerogel sheets by ensuring uniform impregnation and gelation of the silica sol precursor, enhancing thermal insulation properties and reducing defects, with the rotation roller's adjustable height and movement ensuring comprehensive coverage and consistent thickness.
Implementation Method 1
A silica precursor solution is subjected to sol-gel polymerization reaction to from gel
Implementation Method 2
the silica sol precursor is injected to a surface of a blanket to impregnate and gelate the silica sol precursor
Data Source
AI summary
The present invention relates to an apparatus of manufacturing an aerogel sheet. The apparatus of manufacturing the aerogel sheet includes: a fixing vessel into which a blanket is inserted; and an impregnation device putting a silica sol precursor into the blanket inserted into the fixing vessel to impregnate and gelate the silica sol precursor, wherein the impregnation device includes a rotation roller moving from one end to the other end of a top surface of the blanket while rotating to put the stored silica sol precursor into the blanket and thereby to impregnate and gelate the silica sol precursor.