Hydrogen Peroxide Evaporation Device with Multi-Zone Heating
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Solution Overview
Problem
Existing hydrogen peroxide evaporators for sterilization in packaging materials face challenges in achieving the required heating temperature quickly while preventing corrosion of materials, as high temperatures accelerate decomposition and corrosion.
Innovation Solution
A hydrogen peroxide evaporation device with a housing body containing two fluid channels and a heating element, where the first channel is heated to a temperature 30°C above the boiling point for efficient evaporation and the second channel is heated to a higher temperature for further heating, reducing the maximum temperature needed and minimizing corrosion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the liquid hydrogen peroxide is fed through a very hot evaporator to reach the desired temperature quickly, then the heating speed is improved, but the corrosion resistance of the evaporator materials is lost and the decomposition rate of hydrogen peroxide increases rapidly
Solution Approach 1:
The evaporator is divided into multiple heating zones with different temperature levels. The first heating zone operates at a lower temperature (e.g., 80-120°C) to prevent corrosion and decomposition, while the second heating zone operates at a higher temperature (e.g., 150-200°C) to achieve the desired final temperature. This segmentation allows the system to heat the hydrogen peroxide efficiently while protecting the evaporator materials from excessive corrosion.
2Productivity
If the evaporator temperature is increased to reduce the time frame for heating, then the productivity is improved, but the decomposition rate of hydrogen peroxide increases and corrosion occurs
Solution Approach 1:
Different parts of the evaporator are assigned different temperature characteristics. The initial heating section maintains a moderate temperature to prevent harmful decomposition and corrosion, while the final heating section uses higher temperatures to achieve rapid heating and high productivity. This local differentiation of temperature quality allows the system to optimize both productivity and material protection simultaneously.
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 efficiently evaporates hydrogen peroxide with a reduced maximum temperature, minimizing corrosion and ensuring accurate hydrogen peroxide concentration, thus addressing the limitations of prior art solutions.
Implementation Method 1
the liquid solution of hydrogen peroxide and water will evaporate, whereby the gaseous solution is forwarded to a spray nozzle
Implementation Method 2
at least one heating element positioned within said housing body for heating said fluid channels
Data Source
Figure 1~2
Figure 3a~3b
Figure 4a~4c
AI summary
An evaporation device (100) for evaporating hydrogen peroxide is provided. The device comprises a housing body (120) having at least two fluid channels (110a-d) arranged therein, which fluid channels (110a-d) are connected to each other to form a common fluid line between an inlet (130) and an outlet (132), and at least one heating element (150) positioned within said housing body (120) for heating said fluid channels (110a-d). A first fluid channel (110a), being directly connected to the fluid inlet (130), is positioned relative the at least one heating element (150) such that its inner walls will be heated to a first temperature, and a second fluid channel (110d), being directly connected to the fluid outlet (132), is positioned relative the at least one heating element (150) such that its inner walls will be heated to a second temperature, said second temperature being higher than the first temperature.