Magnetic Filter Secondary Ferromagnetic Particle Capture
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Solution Overview
Problem
Existing filters, including magnetic filters, fail to effectively capture small-sized ferromagnetic particles that can pass through metal mesh or magnetic fields, leading to potential system damage from circulating impurities in thermal systems.
Innovation Solution
A magnetic sludge remover filter with a cylindrical housing and a magnetic accessory comprising a pair of half-cylindrical inserts with magnetically attracted plates, providing a secondary filtration step downstream of direct filtration to capture small ferromagnetic particles that may escape initial filtration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a metal mesh filtering cartridge is used for direct filtration, then larger impurities are held back, but small-sized ferromagnetic particles can pass through
Solution Approach 1:
The filtration process is segmented into two distinct stages: first, the metal mesh cartridge captures larger impurities through direct filtration; second, the magnetic accessory with magnetically attracted plates captures small ferromagnetic particles through magnetic attraction. This segmentation allows each component to specialize in capturing particles of different sizes and types, resolving the contradiction between mesh filtration capability and small particle capture effectiveness.
Solution Approach 2:
The magnetic accessory acts as an intermediary component added to the filtration system. It includes magnetically attracted plates positioned within the housing that create localized magnetic fields to capture ferromagnetic particles that escaped the metal mesh filtration. This intermediary mechanism bridges the gap between mechanical filtration and magnetic separation, enhancing overall particle capture effectiveness.
2Device complexity
If a single filtration stage is used, then the device structure remains simple, but small ferromagnetic particles escape filtration
Solution Approach 1:
The filtration system is divided into two functional segments: the metal mesh cartridge for primary filtration of larger particles, and the magnetic accessory with attracted plates for secondary capture of ferromagnetic particles. This segmentation enables comprehensive impurity removal while maintaining relatively simple individual component structures that can be independently manufactured and assembled.
Solution Approach 2:
The invention merges two different filtration mechanisms (mechanical mesh filtration and magnetic attraction) into a single integrated filtration device. The magnetic accessory is positioned within the same housing as the metal mesh cartridge, creating a combined system that leverages both filtration approaches to achieve complete impurity removal without requiring separate devices.
3Device complexity
If only direct filtration through metal mesh is used, then the filter structure is simple, but ferromagnetic particles recirculate causing system damage
Solution Approach 1:
The magnetic accessory serves as an intermediary protection mechanism against ferromagnetic particles. The magnetically attracted plates create magnetic fields that intercept and hold ferromagnetic particles before they can recirculate through the thermal system, preventing the harmful effects of particle-induced wear and damage to system components.
Solution Approach 2:
The invention converts the potentially harmful recirculation of ferromagnetic particles into a beneficial capture process. By introducing magnetic fields through the attracted plates, the system actively attracts and immobilizes ferromagnetic particles that would otherwise cause damage, transforming a harmful circulating contaminant into captured material that can be removed during maintenance.
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
Ensures complete removal of small-sized ferromagnetic particles, preventing system damage and wear by incorporating a secondary magnetic filtration step, enhancing the filter's ability to capture impurities that might otherwise recirculate.
Implementation Method 1
magnetic accessory (37) comprising a support (38) and a pair of substantially half-cylindrical inserts (44) housed in the annular recess (42) so as to substantially form, as a whole, a cylindrical crown
Implementation Method 2
capture small ferromagnetic particles
Data Source
Figure 1~2
Figure 3~6
AI summary
A filter (1) for processing a fluid, comprising a housing (2) provided with an inlet port (33) and an outlet port (34) and delimiting a filtration chamber (3), a tubular filter element (4) housed in the filtration chamber (3) and defining an inner volume (19) connectable to one of the ports (33) and an outer volume (20) connectable to another one of the ports (34), the filter (1) further comprises at least one tubular magnetic accessory (37) housed in the outer volume (20) in a position coaxial to the filter element (4).