Magnetic Pipeline Strainer for Online Fine Particle Removal
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Solution Overview
Problem
Conventional pipeline strainers are unable to efficiently remove fine metal particles, such as iron oxides, from fluids due to their large pores, and often require offline maintenance to remove magnets used for particle collection, leading to inefficiencies and pressure drops.
Innovation Solution
A pipeline strainer design featuring a removable magnet system housed in a drywell that allows for the collection and removal of metal particles without draining liquid, utilizing a baffle to minimize particle dispersion and enable quick, efficient debris removal while the system remains online.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If magnets are used to attract fine metal particles, then particle removal effectiveness is improved, but magnet removal complexity increases
Solution Approach 1:
The magnet is segmented from the main strainer body by placing it on a removable rod that can be extracted through the bonnet. This allows the magnet to be separated into a removable component while maintaining its function in particle attraction, resolving the contradiction between effectiveness and ease of removal.
Solution Approach 2:
The magnet is extracted from the traditional fixed housing and placed on a removable rod that extends through the bonnet. This extraction allows the magnet to be easily removed by simply pulling the rod, eliminating the complexity of disassembling the entire strainer body while maintaining particle removal effectiveness.
2Device complexity
If conventional straining elements with large pores are used, then device simplicity is improved, but fine particle removal effectiveness deteriorates
Solution Approach 1:
The patent merges two different particle removal mechanisms: mechanical straining through the straining element and magnetic attraction through the magnet. This combination allows the simple straining element to handle large particles while the magnet captures fine metal particles, achieving effective fine particle removal without complicating the overall device structure.
Solution Approach 2:
The strainer is designed with multi-functionality by incorporating both a straining element for mechanical filtration and a magnet for magnetic particle attraction. This universal design allows the single device to effectively remove both large and fine particles, maintaining simplicity while improving fine particle removal effectiveness.
3Reliability
If magnets are fixed in the strainer body, then particle collection effectiveness is improved, but maintenance downtime increases
Solution Approach 1:
The magnet is made dynamic by placing it on a removable rod that can be easily inserted and extracted. This dynamic design allows the magnet to be quickly removed for cleaning or replacement without requiring full disassembly of the strainer body, significantly reducing maintenance downtime while maintaining particle collection effectiveness during operation.
Solution Approach 2:
The magnet is positioned on a pre-configured removable rod that is already in place, allowing for quick removal without requiring preliminary disassembly steps. This preliminary preparation of the removable rod structure enables rapid magnet extraction during maintenance, reducing downtime while preserving collection effectiveness.
4Reliability
If the strainer is taken offline for magnet removal, then complete particle removal is improved, but operational continuity deteriorates
Solution Approach 1:
The magnet is extracted to a position where it can be removed through the bonnet without taking the strainer offline. The removable rod allows the magnet to be pulled out while the strainer remains in service, enabling complete particle removal maintenance while maintaining operational continuity of the fluid system.
Solution Approach 2:
The removable rod acts as an intermediary mechanism that enables magnet removal without requiring the strainer to be taken offline. This intermediary structure allows maintenance personnel to access and remove the magnet through the bonnet while the strainer remains in operation, achieving complete particle removal while preserving operational continuity.
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 effective collection and removal of magnetic particles without disrupting fluid flow, reducing maintenance downtime and pressure drops, and ensuring efficient operation of magnetic pump systems.
Implementation Method 1
the magnets in the pump attract fine metal particles, such as iron oxides, that are in the water
Implementation Method 2
A baffle is used to minimize the particles dispersing when being removed
Data Source
Figure 1
Figure 2A~3
AI summary
A pipeline strainer (10, 110) having a body (12) with a straining element (14) therein. One or more magnets (80) are removably inserted into the straining element (14) and configured to be removed from the body (12) without causing liquid within the cavity (16) to drain from the pipeline strainer (10, 110). A drywell (82) may be used to house the magnets (80). The movement of withdrawing the magnets (80) pulls metal particles along the outer surface of the drywell (82) toward a debris drain (26). A baffle (100) is disposed at the end of the drywell (82) that is adjacent or near the debris drain (26) to reduce turbulence from the fluid flow within the pipeline strainer (10, 110) which undesirably disperses the collected metal particles.