Magnetic Pipe Cleaning Apparatus for Continuous Anti-Fouling
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Solution Overview
Problem
Industrial pipes and pipe joints in processes like pyrolysis and petrochemicals face inefficiencies due to deposition of mineral and organic solids, which leads to costly shutdowns for manual cleaning and replacement, and exposes workers to hazardous materials, as existing cleaning methods are inadequate for continuous operation, especially in heated systems and areas with changing flow velocities.
Innovation Solution
A four-component cleaning assembly with a magnetically driven internal wiping component and fixed pipe fittings, featuring robust knife edges, allows for continuous cleaning of pipes and joints, independent of fluid flow, capable of removing hardened deposits and operating in heated systems, and self-cleaning the anti-fouling apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual cleaning with scraping or abrasive cutters is used, then deposits are removed from pipes and pipe joints, but production must be interrupted and labor costs increase
Solution Approach 1:
The cleaning system is self-propelled by magnetic interaction between the external magnetic ring and internal magnetic component, requiring no external power source or manual intervention. The system cleans itself and the pipes continuously during operation, eliminating the need for shutdowns and manual labor while maintaining production efficiency
Solution Approach 2:
The magnetic drive system enables continuous cleaning action during pipe operation without interruption. The internal wiping member continuously contacts and removes deposits as it is propelled through the pipe by the external magnetic ring, ensuring uninterrupted production while maintaining reliability
2Ease of operation
If soft flexible wiping members are used, then the cleaning device can move through pipes easily, but hardened deposits cannot be scraped or scouring removed
Solution Approach 1:
The internal wiping member combines a flexible body for easy movement through pipes with hard knife edges for effective scraping of hardened deposits. This composite structure integrates the advantages of both soft and hard materials, enabling the device to navigate piping easily while reliably removing tough deposits
Solution Approach 2:
Different parts of the wiping member have different properties: the body is soft and flexible for navigation, while the edges are hard knife edges for cutting deposits. This local differentiation of material properties allows the single device to perform both movement and cleaning functions effectively
3Productivity
If exterior magnetic ring is used to drive internal wiping member, then continuous cleaning is enabled, but heating elements on pipe exterior interfere with magnetic ring operation
Solution Approach 1:
The magnetic field acts as an intermediary that transmits force through the pipe wall from the external magnetic ring to the internal magnetic component. This intermediary mechanism allows the drive system to function through heated pipes without direct contact with heating elements, enabling continuous cleaning in heated systems
4Reliability
If cleaning is performed ex situ by disassembly, then thorough cleaning is achieved, but direct labor expense and lost production time increase
Solution Approach 1:
The in situ magnetic drive system enables continuous cleaning during pipe operation without disassembly or shutdown. The internal wiping member continuously removes deposits as it travels through the pipe, achieving thorough cleaning while eliminating lost production time and maintaining operational continuity
5Ease of operation
If pig cleaning devices forced by fluid pressure are used, then cleaning action is provided, but movement counter to fluid flow is not possible and one-way trip only
Solution Approach 1:
The system replaces fluid pressure-driven mechanics with magnetic field-driven propulsion. The external magnetic ring propels the internal magnetic component through magnetic attraction and repulsion, enabling bidirectional movement and positioning independent of fluid flow direction, providing greater versatility than pressure-driven pigs
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 continuous operation without shutdowns, reduces labor and replacement costs, minimizes worker exposure to hazardous materials, and effectively removes deposits across all points in the system, including areas with changing flow velocities, maintaining system efficiency and safety.
Implementation Method 1
an external magnetic ring... which interacts with a magnetic component to propel the internal wiping member through the pipe
Data Source
AI summary
A system for cleaning pipes and pipe joints where the interior surface of the pipe becomes coated with material being processed comprising a cylindrical cleaning body having opposing first and second ends, said cylindrical body having an annular shape with interior and exterior walls so that the outer wall contacts the interior surface of a pipe and wherein ends of the cleaning body have means for removing material deposited on the interior surface, a means for moving the apparatus along the length of said pipe, a first and second means for cleaning said cleaning body having passages that allow fluid to pass through, wherein said first and second cleaning means mates with said first and second ends of said cleaning body, where said cleaning body is moved into contact with said cleaning means to dislodge accumulated deposits from the cleaning body and simultaneously dislodging accumulated deposits from said cleaning means.