Modular Purification Assemblies for Gas Pipeline Particulate Removal
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Solution Overview
Problem
Natural gas pipeline systems face challenges in removing harmful particulates, such as black powder, which can be erosive, toxic, and chemically reactive, posing risks to equipment and personnel, and existing solutions are inefficient in handling varying gas flow conditions and ensuring safe servicing.
Innovation Solution
A pressure vessel equipped with multiple purification assemblies, including filter and separator units, where the gas flows through a filter assembly with porous filter media and a separator assembly that uses shells to contain and remove particulates, allowing for safe and efficient servicing by isolating hazardous materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single purification assembly is used, then the device complexity is reduced, but the productivity and purification effectiveness deteriorate
Solution Approach 1:
The purification system is divided into multiple independent purification assemblies (first, second, and third assemblies) arranged in series within the pressure vessel. Each assembly contains multiple filter elements that process the gas stream sequentially, with the first assembly handling initial filtration, the second assembly providing intermediate filtration, and the third assembly performing final filtration before gas exits the vessel. This segmentation increases purification effectiveness while maintaining manageable device complexity through modular design.
Solution Approach 2:
The patent introduces a temporal dimension to the purification process by arranging filter elements in series along the gas flow path, creating a multi-stage purification sequence. Gas passes through multiple purification stages rather than a single stage, effectively adding a time-based dimension to the filtration process. This increases productivity and purification effectiveness without significantly increasing spatial complexity.
2Ease of repair
If the pressure vessel is modified to service purification assemblies, then the ease of repair is improved, but the adaptability to varying gas flow conditions deteriorates
Solution Approach 1:
Each purification assembly is designed as a modular unit containing multiple filter elements that can be independently serviced. The assemblies are positioned within the pressure vessel at different locations along the gas flow path, allowing individual assemblies to be accessed and maintained without shutting down the entire system. This modular segmentation improves ease of repair while maintaining adaptability to varying gas flow conditions.
Solution Approach 2:
The system allows dynamic operation where gas can continue flowing through the pressure vessel while specific purification assemblies are taken offline for servicing. The modular design enables flexible configuration where assemblies can be added, removed, or maintained based on actual gas flow conditions and particulate loading requirements, enhancing both ease of repair and adaptability.
3Reliability
If multiple purification assemblies are added, then the purity of gas output is improved, but the device complexity increases
Solution Approach 1:
The purification system employs multiple discrete purification assemblies (first, second, and third assemblies) arranged in series within the pressure vessel. Each assembly contains multiple filter elements that progressively remove particulates from the gas stream. This segmentation achieves high purification effectiveness and reliability by distributing the filtration function across multiple independent units, while the modular nature of each assembly keeps individual complexity manageable.
Solution Approach 2:
Each purification assembly is designed as a universal module that can perform the complete filtration function independently. The assemblies use similar filter element designs and configurations, allowing them to be interchangeably positioned or serviced. This universality achieves high reliability through redundancy while minimizing device complexity by repeating proven designs rather than creating unique components for each stage.
4Ease of operation
If the separator assembly removes particulates externally, then the ease of operation is improved, but the loss of substance increases
Solution Approach 1:
The separator assembly includes a shell that is nested within or integrated with the pressure vessel structure. The shell contains collected particulates internally, preventing their release into the environment. This nested configuration maintains ease of operation by providing centralized particulate containment while minimizing substance loss through controlled collection and retention within the integrated shell structure.
Solution Approach 2:
The separator assembly creates a contained environment for particulate collection, effectively isolating harmful substances from the external atmosphere. The shell structure maintains an inert or controlled internal environment where particulates are safely contained, preventing pyrophoric reactions or toxic exposure while allowing continuous operation. This containment approach improves ease of operation by eliminating the need for complex external handling systems.
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 solution effectively reduces particulate content in the gas, allowing for safer operation and maintenance by containing harmful substances within the shell, reducing downtime, and accommodating varying gas flow conditions without modifying the pressure vessel.
Implementation Method 1
each filter element may include a porous filter medium. As the gas flows through the pressure vessel, it passes through the filter medium, and the particulates carried by the gas are trapped on the surface of and/or within the filter medium.
Implementation Method 2
a separator may slow the velocity of the gas and allow the particulates to settle from the gas
Implementation Method 3
a separator may deflect the particulates from the principal gas flow stream, causing the gas and the particulates to separate from one another
Data Source
AI summary
A purification arrangement for a gas pipeline system includes a pressure vessel and at least first and second purification assemblies in the interior of the pressure vessel. A gas flow may be established through the pressure vessel, and the gas may pass through the first purification assembly and the second purification assembly to remove liquid and/or solid particulates from the gas. At least one of the first and second purification assemblies includes a separator assembly having one or more separators which removes particulates and a shell mounted to one or more of the separators to collect and contain the removed particulates.