Polymerization Vessel Cooling Channels Without By-Pass Defects
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Solution Overview
Problem
Conventional polymerization vessels suffer from by-pass defects in their cooling channels, leading to reduced heat removal efficacy, especially in larger volumes, due to gaps between intercepting and jacket plates.
Innovation Solution
A polymerization vessel with a specific cooling channel structure formed by excavation and shell plates, integrated with a nickel layer to prevent by-pass defects and enhance heat removal, and incorporating intercepting tubes for improved heat transfer and compressive strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If intercepting plate and jacket plate are disposed outside the vessel body to form a jacket structure, then the cooling fluid can be introduced to remove reaction heat, but gaps are easily presented between the plates, generating by-pass defects and lowering heat removal efficacy
Solution Approach 1:
The partition walls are integrally formed with the vessel wall, merging the cooling channel structure into the vessel body itself. This integration eliminates gaps between separate plates and prevents by-pass defects, while maintaining the heat removal function through the cooling fluid flow channels.
Solution Approach 2:
The cooling channel is divided into multiple sections by partition walls that protrude from the vessel wall. This segmentation creates multiple flow paths for the cooling fluid, improving heat removal efficacy while the integral formation ensures no gaps exist between segments.
2Volume of stationary object
If the polymerization vessel volume is increased, then more reaction heat is generated, but heat removal efficacy is continuously improved
Solution Approach 1:
The cooling channel is designed to extend along the axial direction of the vessel, utilizing the vertical dimension for heat removal. This allows the cooling system to scale effectively with vessel volume, maintaining high heat removal efficacy in large-scale polymerization processes.
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 enhanced cooling channel structure and intercepting tubes improve heat removal efficacy, prevent fouling, and extend the service life of the vessel, meeting high-pressure resistance requirements for large-scale polymerization processes.
Implementation Method 1
The reaction heat generated by the polymerization reaction is removed by introducing a cooling fluid
Implementation Method 2
the metallic covering layer is formed from a material with a lower fouling factor than materials of the vessel body and the at least one shell plate
Data Source
AI summary
The application relates to a polymerization vessel and a method for manufacturing the same. An interior surface of the polymerization vessel has a specific structure, so that the polymerization vessel has better heat transfer efficiency. Closed cooling channels are constructed from the specific structure, and therefore cooling fluid flows in the closed cooling channels. Furthermore, there won't be any by-pass defects in the cooling channels of the polymerization vessel, thereby improving cooling efficiency of the cooling fluid.