Demister Cyclone Contaminant Prevention via Baffles
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Solution Overview
Problem
Advanced distillation systems face challenges in effectively removing contaminants and minimizing disruption due to mist particles and liquid splashes in demister cyclones, which can lead to contamination of purified water and reduced efficiency.
Innovation Solution
The implementation of a demister cyclone design featuring a flow restrictor and perforated inner wall, along with mechanical barriers such as baffles and grooves on the boiler cover, to redirect steam flow and prevent contaminants from entering the cyclone, enhancing separation efficiency and reducing contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a demister cyclone is used to separate mist particles from steam, then separation efficiency is improved, but liquid flooding and mist particles can still enter the cyclone causing disruption and contamination
Solution Approach 1:
The patent applies preliminary action by placing mechanical barriers (baffles and grooves) before the steam enters the demister cyclone. The baffles are positioned to intercept and redirect large liquid droplets, while grooves on the boiler cover prevent condensed water from migrating toward the cyclone entry port. This preliminary prevention reduces the harmful factors before they can disrupt the cyclonic separation process.
Solution Approach 2:
The patent uses an intermediary approach by introducing mechanical barriers as mediator elements between the steam source and the demister cyclone. These baffles and grooves act as intermediary structures that filter out large liquid particles and redirect steam flow, protecting the cyclone from direct exposure to liquid flooding and mist particles while maintaining separation efficiency.
2Object-affected harmful factors
If mechanical barriers are added to prevent liquid entry, then contamination is reduced, but device complexity increases
Solution Approach 1:
The patent applies local quality by placing mechanical barriers only in specific critical locations where liquid flooding and contamination are most likely to occur. Baffles are positioned at strategic points within the steam path, and grooves are located on the boiler cover near the cyclone entry. This localized approach provides effective contamination prevention without requiring complex barriers throughout the entire system.
Solution Approach 2:
The patent uses simple, inexpensive mechanical barriers such as baffles and grooves that can be easily manufactured and installed. These simple structures provide effective contamination protection without requiring complex or expensive components, making the solution cost-effective and easy to implement while reducing device complexity.
3Reliability
If steam flow is redirected along curved walls, then separation is improved, but pressure drop increases
Solution Approach 1:
The patent applies curvature by designing the steam flow path to follow curved walls rather than straight lines. The curved geometry of the demister cyclone and the curved trajectories of steam flow along the walls create more effective centrifugal separation forces, improving separation quality while the curvature helps manage pressure distribution more evenly throughout the system.
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 design improves the separation of clean and dirty steam, reduces contamination, and maintains system efficiency by minimizing disruption from liquid flooding and mist particles, while being cost-effective and easy to install.
Implementation Method 1
a flow restrictor that is placed or configured in the demister cyclone so that at least some, more, or all of the change in pressure (e.g., pressure drop) that occurs when the steam enters the demister occurs when the steam enters the primary chamber of the demister
Implementation Method 2
Demister cyclones effect separation by imparting a rotational speed to the mixture of gases and particulates
Implementation Method 3
demister cyclone with altered steam circulation
Implementation Method 4
a perforated interior shell can be used in a demister to improve the function of the demister
Implementation Method 5
grooves in the underside of the boiler cover that prevent the lateral migration of condensed water droplets
Implementation Method 6
A flow passing though the entry port is biased to travel along the curved wall, rather than to flow straight into the chamber
Data Source
AI summary
Embodiments of the invention provide systems and methods for water purification. Embodiments can generally be applied to demister cyclones (6). Some embodiments allow for more of the pressure change which occurs in demister cyclones to occur in the separating chamber (19) of the demister cyclone. Some embodiments include a demister cyclone having an internal perforated wall (52). Some embodiments include a groove (103) or a baffle (102) on the underside of a boiler cover.