Reaction Apparatus Nozzle Ejection for Temperature Control
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Solution Overview
Problem
Large-scale flow reactors face challenges in achieving precise temperature control due to complex flow paths, which hinder uniform temperature distribution of the temperature control medium, especially when heat generation or absorption is significant.
Innovation Solution
A reaction apparatus with a tubular reaction unit is designed, where a temperature control medium is ejected directly at a predetermined temperature towards the heat generating or absorbing parts of the tubular reaction unit using a nozzle, allowing for precise temperature control by optimizing the ejection direction and speed of the medium.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the entire reaction unit is immersed in a temperature control medium to improve temperature control, then the temperature control coverage is improved, but the temperature distribution uniformity deteriorates due to inability to stir the medium effectively in complex flow paths
Solution Approach 1:
The patent applies local quality by directing the temperature control medium specifically to the heat generating part or heat absorbing part of the tubular reaction unit rather than attempting to uniformly control the entire reaction unit. The nozzle is positioned to eject the medium at a specific location where heat generation or absorption occurs, creating a localized temperature control zone that addresses the thermal issue at its source without requiring uniform temperature distribution throughout the entire medium.
2Temperature
If a stirring means is introduced into the flow reactor to improve temperature distribution uniformity, then the temperature control effectiveness is improved, but the device complexity increases and space requirements are not met due to complicated flow path geometry
Solution Approach 1:
The patent extracts the stirring function from the system by eliminating the need for mechanical stirring means entirely. Instead of introducing a stirring impeller into the complex flow path, the invention uses the kinetic energy of the ejected temperature control medium from the nozzle to create localized mixing and heat transfer. This external extraction approach avoids the complexity of integrating stirring mechanisms into the tubular reaction unit while achieving effective temperature control.
Solution Approach 2:
The patent employs pneumatic and hydraulic principles by using a jet of temperature control medium ejected from a nozzle to achieve mixing and heat transfer. The high-velocity fluid jet creates turbulence and enhances heat exchange at the point of ejection, replacing the need for mechanical stirring. This fluid dynamic approach leverages the kinetic energy of the ejected medium to accomplish what would otherwise require mechanical agitation.
3Productivity
If the reaction unit is made larger to increase processing amount, then the productivity is improved, but the temperature control precision deteriorates due to increased heat generation and complex flow paths
Solution Approach 1:
The patent applies local quality by concentrating the temperature control action at the specific location where heat generation or absorption occurs within the larger reaction unit. Rather than attempting to control the entire large volume uniformly, the nozzle is positioned to eject the temperature control medium directly at the heat generating part or heat absorbing part, providing precise localized thermal management that maintains temperature control precision even as the overall reactor size increases for higher productivity.
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 approach enables efficient and precise temperature control within the tubular reaction unit, ensuring uniform temperature distribution without unnecessary heating or cooling of other areas, thus maintaining optimal reaction conditions.
Implementation Method 1
a container configured to accommodate the tubular reaction unit and a temperature control medium used in heat exchange with the tubular reaction unit
Data Source
AI summary
A reaction apparatus comprising at least one tubular reaction unit (23), a container (41) configured to accommodate the tubular reaction unit (23) and a temperature control medium (51) used in heat exchange with the tubular reaction unit (23), and a nozzle (31) configured to eject the temperature control medium (51) toward the tubular reaction unit (23) in the container. The reaction apparatus further comprising a movable part (34) configured to adjust an ejection direction of the nozzle (31) is preferred. The reaction apparatus allows for effectively performing the temperature control even when the tubular reaction unit is immersed in a temperature control medium.