Gas Cleaning System with Cyclone Dehydration
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Solution Overview
Problem
Existing gas cleaning systems, particularly coalescers, face challenges in achieving extensive dehydration of gases, especially when dealing with high-temperature and high-pressure exhaust gases, as liquid particles coalesce on the filter devices, leading to incomplete dehydration and potential re-entrainment of moisture.
Innovation Solution
A gas cleaning system with a preliminary dehydration arrangement, preferably a cyclone integrated into the housing, which preprocesses the gas before it enters the coalescer, utilizing centrifugal forces to separate liquid particles, ensuring extensive dehydration and reducing the load on the filter medium.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a filter device is used for gas cleaning, then solid particles can be separated, but dehydration efficiency is insufficient and liquid particles re-entrain
Solution Approach 1:
The gas cleaning system is divided into two distinct stages: a preliminary dehydration stage using a cyclone separator and a final filtration stage using a coalescing filter. This segmentation allows each component to specialize in one function - the cyclone removes bulk liquid particles through centrifugal separation, while the filter handles remaining moisture and solid particles, thereby improving overall dehydration efficiency and preventing liquid re-entrainment
Solution Approach 2:
The cyclone separator performs preliminary dehydration of the gas stream before it enters the coalescing filter. By removing the majority of liquid particles in advance through centrifugal forces, the filter is protected from excessive liquid loading, which improves its dehydration efficiency and prevents liquid particle re-entrainment in the cleaned gas
2Volume of moving object
If a cyclone is integrated into the housing, then the construction becomes compact, but the device complexity increases
Solution Approach 1:
The cyclone separator and coalescing filter are merged into a single integrated housing structure, with the cyclone positioned upstream of the filter. This combination achieves compact construction by eliminating the need for separate housings and connections, while the modular internal design keeps the system complexity manageable through clear functional zoning
Solution Approach 2:
The cyclone separator is nested within the housing structure, with its outlet positioned to feed directly into the coalescing filter elements. This nested arrangement maximizes space utilization within the housing volume while maintaining a relatively simple overall system architecture through straightforward fluid flow path integration
3Device complexity
If the gas flows directly into the coalescer, then the construction is simple, but the cleaning action is insufficient
Solution Approach 1:
The cyclone separator is positioned upstream of the coalescing filter to perform preliminary removal of bulk liquid particles from the gas stream. This preliminary action enhances the overall cleaning effectiveness by ensuring that the filter receives pre-dehydrated gas, improving its ability to remove remaining moisture and solid particles achieve extensive dehydration
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 system achieves enhanced dehydration efficiency, allowing for the effective removal of solid particles and coalesced liquids, resulting in a more reliable and compact design that ensures the cleaned gas can be safely returned to the process without re-entrained moisture.
Implementation Method 1
utilizing centrifugal forces to separate liquid particles
Implementation Method 2
the arrangement for preliminary dehydration has at least one cyclone
Implementation Method 3
filter media both for separation of the solid particles and for dehydration of the gas by precipitation of coalesced liquid
Data Source
AI summary
A system for gas cleaning has at least one casing (1) with a first chamber (31) into which the gas to be cleaned can be flowed and with a second chamber (33) from which the cleaned gas exits. A filter device (35) can have the gas flow through it and can be arranged between the chambers. The filter device has filter media both for the separation of solid particles and for dehumidifying the gas by separating out coalesced liquid. The system has, upstream of the filter device (35), an arrangement (11, 37) for preliminary dehumidification of the gas.