Evaporation Device with Rotating Liquid Distributor
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Solution Overview
Problem
Conventional evaporation devices face challenges in efficiently evaporating volatile components from raw materials, require frequent maintenance due to wear of rollers or wipers, and pose issues during shutdown due to temperature-related deformation.
Innovation Solution
An evaporation device with a rotating shaft and channel parts that recirculate the raw material liquid, allowing it to flow upward and downward along the inner wall, eliminating the need for rollers or wipers and reducing maintenance, while preventing seizure and splash issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If rollers or wipers are used to renew the liquid surface on the heat transfer surface, then evaporation efficiency is improved, but maintenance frequency increases due to wear
Solution Approach 1:
The invention removes the rollers or wipers from the system entirely. Instead of using mechanical contact components to renew the liquid surface, the system relies on the natural falling film flow and evaporation process, thereby eliminating wear and maintenance requirements while maintaining evaporation efficiency
Solution Approach 2:
The system uses the raw material liquid itself to flow down the inner wall and naturally renew the liquid surface through continuous flow and evaporation. The liquid serves its own function of surface renewal without requiring external mechanical components, reducing maintenance needs
2Stability of the object's composition
If rollers or wipers are continuously in contact with the heat transfer surface, then liquid surface renewal is achieved, but temperature-related deformation occurs during shutdown
Solution Approach 1:
The invention removes the mechanical contact components (rollers or wipers) that cause temperature-related deformation during shutdown. By eliminating these components, the system avoids the thermal stress and deformation issues that occur when they remain in contact with the hot heat transfer surface during shutdown
Solution Approach 2:
The invention replaces the mechanical system of rollers or wipers with a fluid-based system where the raw material liquid itself flows and renews the liquid surface. This substitution eliminates the mechanical components that are susceptible to temperature-related deformation
3Device complexity
If raw material liquid flows down the inner wall in a single pass, then the structure is simple, but volatile component evaporation is insufficient
Solution Approach 1:
The invention creates a periodic flow pattern where the raw material liquid flows down the inner wall, forms a pool at the bottom, and then flows up again through the distribution channels. This periodic circulation allows multiple evaporation cycles, significantly improving volatile component removal while maintaining structural simplicity
Solution Approach 2:
The invention ensures continuous evaporation action by maintaining a persistent flow cycle of the raw material liquid. The liquid continuously flows down, pools, flows up through channels, and repeats the cycle, ensuring that evaporation occurs continuously rather than in a single pass, thereby improving volatile component removal efficiency
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
Enhances evaporation efficiency, reduces maintenance needs, and prevents temperature-related issues during shutdown, allowing for continuous operation until the inner wall cools down.
Implementation Method 1
as a result of being heated via the jacket 812, a volatile component contained in the raw material liquid evaporates
Implementation Method 2
an outer circumference of the agitation vessel 810 is covered by a jacket 812 that can be heated by steam
Implementation Method 3
the raw material liquid temporarily stored in the storage portion flows upward from a lower side of the agitation vessel as the rotating shaft rotates
Implementation Method 4
The volatile component is cooled in the condenser 930 and then collected as a distillate liquid
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
An evaporation device of the present invention includes an agitation vessel to which a raw material liquid is supplied, wherein the agitation vessel has a volatile component outlet and a concentrate outlet; a jacket provided on an outer circumference of the agitation vessel and configured to heat an inner wall of the agitation vessel; and a liquid-distributing portion provided within the agitation vessel and configured to cause the raw material liquid to flow down the inner wall of the agitation vessel, wherein the agitation vessel includes at least one storage portion surrounded by a bottom of the agitation vessel, the inner wall, and a partition wall portion and configured to temporarily store the raw material liquid that has flowed down, the liquid-distributing portion is constituted by a rotating shaft and at least one channel part having a flow passage in which, as the rotating shaft rotates, the raw material liquid temporarily stored in the storage portion flows upward from a lower side of the agitation vessel and the channel part being mounted to the rotating shaft, and the concentrate outlet is provided in the bottom of the agitation vessel.