Peeling Method Using Segmented Decompression and Pressure-Heating
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Solution Overview
Problem
Conventional peeling methods using pressure-heating and rapid decompression are inefficient for removing skin from objects with hard skin and can cause starch gelatinization, leading to decreased commercial value and incomplete peeling.
Innovation Solution
A peeling method involving a pressure chamber with two decompression steps: a first decompression to a predetermined negative pressure state, followed by pressure-heating, and a second decompression to a lower negative pressure state, utilizing a controller to manage the decompressor and vapor supplier for efficient skin removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If pressure-heating and rapid decompression are used for peeling, then peeling yield is improved, but heating time becomes too long causing starch gelatinization
Solution Approach 1:
The decompression process is segmented into two distinct stages: a first decompression to a first negative pressure state, followed by pressure-heating, then a second decompression to a second negative pressure state. This segmentation allows the peeling action to occur in two phases, achieving complete skin removal while controlling the overall heating time to prevent starch gelatinization.
Solution Approach 2:
The invention changes the pressure parameters dynamically during the peeling process. By transitioning from atmospheric pressure to a first negative pressure state, then to pressure-heating conditions, and finally to a second negative pressure state, the system optimizes the peeling effectiveness while limiting the duration of high-temperature exposure to prevent starch gelatinization.
2Productivity
If stronger force is applied for peeling hard skin, then peeling completeness is improved, but the conventional method cannot remove skin completely
Solution Approach 1:
The peeling process is divided into two decompression stages that work together to overcome the hard skin barrier. The first decompression creates initial separation, and the second decompression after pressure-heating delivers the stronger force needed to completely remove hard skin, achieving both completeness and effectiveness.
Solution Approach 2:
The invention utilizes phase transitions of water (liquid to vapor) during the pressure-heating process to generate the necessary force for skin removal. The rapid vaporization under pressure creates expansion forces that effectively separate and remove even hard skin, improving both completeness and reliability of peeling.
3Reliability
If long-time heating treatment is applied, then peeling effectiveness is improved, but starch gelatinization occurs decreasing commercial value
Solution Approach 1:
The heating process is segmented into a brief pressure-heating phase between two decompression steps. This segmentation allows the system to achieve effective peeling through the combined mechanical and thermal actions while limiting the total heating time to prevent starch gelatinization, thus maintaining commercial value.
Solution Approach 2:
The invention maintains continuous useful action by alternating decompression and pressure-heating steps. The peeling action continues throughout the process without requiring prolonged continuous heating, as the decompression steps provide mechanical separation that reduces the heating time needed, preventing starch gelatinization while maintaining peeling effectiveness.
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 method achieves effective peeling in a shorter heating time, preventing starch gelatinization and ensuring complete skin removal from objects with hard skin.
Implementation Method 1
decompressing an inside of the pressure chamber to a predetermined first negative pressure state
Implementation Method 2
provides vapor to the pressure chamber being decompressed and pressure-heats the inside of the pressure chamber to a predetermined pressure-heating state
Implementation Method 3
decompresses the inside of the pressure chamber to a predetermined second negative pressure state after the pressure-heating
Data Source
AI summary
A peeling method includes a first decompression step, a pressure-heating step, and a second decompression step. In the first decompression step, an object with a skin to be peeled is placed in a pressure chamber being sealed, and an inside of the pressure chamber is decompressed to a predetermined first negative pressure state. In the pressure-heating step, the inside of the pressure chamber is pressure-heated to a predetermined pressure-heating state after the first decompression step. In the second decompression step, the inside of the pressure chamber is decompressed to a predetermined second negative pressure state after the pressure-heating step.