Pipe Assembly for Quenching Hot Gas Reactions
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Solution Overview
Problem
Existing pipeline arrangements face challenges in connecting hot gas pipes to quench gas pipes due to high temperatures, leading to issues with linear expansion and reaction stopping in high-temperature processes for producing nanoscale particles.
Innovation Solution
A pipeline arrangement where the hot gas pipe penetrates a connecting element, allowing the pipe end section with an outlet opening to be positioned within the quench gas pipe, with a compensator that absorbs linear expansion, ensuring the hot gas is enveloped by quench gas, thus cooling and stopping reactions effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the hot gas pipe is directly connected to the quench gas pipe, then the structure is simple, but the high temperature damages the quench gas pipe and prevents proper connection
Solution Approach 1:
The hot gas pipe is inserted through the connecting element and positioned inside the quench gas pipe, creating a nested configuration where the hot gas pipe end section is surrounded by the quench gas pipe. This nesting allows the hot gas to be immediately cooled by the quench gas while preventing direct thermal damage to the quench gas pipe through the thermal buffer zone created by the connecting element
Solution Approach 2:
The connecting element serves as an intermediary component between the hot gas pipe and the quench gas pipe. It provides a transition zone that accommodates thermal expansion and allows the hot gas pipe to be positioned such that its end section is enveloped by the quench gas, thereby mediating the thermal interaction and preventing direct heat transfer that would damage the quench gas pipe
2Stability of the object's composition
If the hot gas pipe is constrained to prevent expansion, then the structure is stable, but the thermal expansion causes stress and potential failure
Solution Approach 1:
The connecting element is designed to be dynamic rather than rigid, allowing it to accommodate the thermal expansion of the hot gas pipe through controlled movement and deformation. This dynamic design absorbs expansion forces without creating excessive stress on the pipe walls, maintaining both stability and strength
3Strength
If the hot gas pipe is allowed to expand freely, then the stress is reduced, but the position changes prevent proper connection and cooling
Solution Approach 1:
The connecting element acts as a mediator that decouples the thermal expansion of the hot gas pipe from the positional requirements of the quench gas pipe connection. It allows the hot gas pipe to expand freely while maintaining the correct positioning of the pipe end section within the quench gas pipe, ensuring both stress reduction and connection reliability
Solution Approach 2:
The connecting element is designed to change its physical parameters (position, shape) in response to thermal expansion. By accommodating dimensional changes through controlled deformation or movement, it maintains the functional relationship between the hot gas pipe and quench gas pipe, ensuring reliable connection and effective cooling despite temperature-induced parameter changes
4Reliability
If cooling is applied to stop the reaction, then the reaction is stopped, but insufficient cooling allows continued reaction and particle deposition
Solution Approach 1:
The nested configuration positions the hot gas pipe end section inside the quench gas pipe, creating an immediate cooling zone where hot gas exits directly into the cooler quench gas environment. This ensures rapid and sufficient cooling to stop the reaction and prevents particle deposition on the quench gas pipe walls by maintaining appropriate temperature gradients
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
Enables direct connection of hot gas pipes to quench gas pipes, optimally cools the hot gas, stops reactions, and reduces particle deposition, enhancing particle yield and maintaining the integrity of the quench gas pipe at high temperatures.
Implementation Method 1
a hot gas pipe (2) through which a particle-carrying hot gas flows in an operating state and which experiences a linear expansion due to the flow of hot gas
Implementation Method 2
a quench gas pipe (5) through which a colder quench gas flows in an operating state compared to the hot gas
Implementation Method 3
the hot gas flowing out of the outlet opening into the quench gas pipe in the operating state is enveloped by the quench gas
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a piping arrangement (1) for stopping a reaction taking place in the piping arrangement (1) and to a system comprising a high-temperature reactor (22) and the piping arrangement (1) and a process plant (21) based thereon.