Self-Cleaning Linear Ionizing Bar with Movable Electrode
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Solution Overview
Problem
Conventional linear ionizing bars suffer from emitter corrosion and contamination, leading to performance degradation and the need for manual cleaning, which is time-consuming and can damage the equipment.
Innovation Solution
A self-cleaning linear ionizer design featuring a movable ionizing electrode with opposing ends, spool assemblies, and an electrode-cleaner that selectively engages the electrode to remove surface degradation products during movement, utilizing a constant-force spring motor for tension and a microprocessor-based control system for automated cleaning cycles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual cleaning is performed on the emitter, then contamination is removed, but equipment damage risk increases and time is lost
Solution Approach 1:
The system performs self-cleaning through automated mechanisms including spool assemblies that move the electrode through cleaning stations, brushes that remove contaminants, and gas jets that blow away debris. This eliminates manual cleaning operations and their associated time losses while reducing equipment damage risk from human handling.
Solution Approach 2:
The cleaning mechanism operates continuously or periodically to prevent contamination accumulation rather than waiting for manual cleaning. The spool assemblies and cleaning stations are positioned to maintain the electrode surface before degradation significantly impacts performance.
2Ease of operation
If the electrode is made movable for self-cleaning, then cleaning accessibility is improved, but device complexity increases
Solution Approach 1:
The spool assemblies serve dual functions: they move the electrode during normal operation to maintain ion balance, and they move the electrode during cleaning operations to present it to cleaning stations. This multi-functionality reduces the need for separate cleaning mechanisms.
Solution Approach 2:
The cleaning mechanism is integrated into the existing electrode support and movement structure. Brushes and gas jets are positioned along the electrode path, combining cleaning functionality with the structural elements already present in the ionizer.
3Productivity
If continuous operation is maintained, then productivity is maximized, but emitter degradation accelerates
Solution Approach 1:
The cleaning mechanism operates continuously or periodically without interrupting ionization operations. The electrode is constantly presented to cleaning stations, or brief cleaning cycles are inserted between ionization batches, maintaining productivity while extending emitter life through continuous contamination removal.
Solution Approach 2:
The system alternates between ionization mode and cleaning mode in regular cycles. During cleaning cycles, the spool assemblies move the electrode through cleaning stations, while during ionization cycles, normal production occurs. This periodic action maintains productivity while preventing degradation accumulation.
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 self-cleaning mechanism reduces the frequency and duration of manual cleaning, extends the lifespan of the ionizing equipment, and maintains ion balance by automatically removing contaminants, thereby enhancing operational efficiency and reliability.
Implementation Method 1
a constant-force spring motor tensions the electrode such that a substantially constant tensional force is maintained on the electrode
Implementation Method 2
a linear ion emitter is a wire... establishing an ion plasma region along the length thereof... corona discharge occurs (between the electrodes 201 and 104,105) to thereby yield copious amounts of both polarity ions
Data Source
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AI summary
A self-cleaning linear (300) ionizer with at least one ionizing electrode (301), at least one electrode-cleaner (315), and at least two spool assemblies (302, 303) is disclosed. The electrode has opposing ends and defines an axial working length with a surface that produces an ion cloud and develops degradation products with use. Although the working length of the electrode is stationary, the electrode is movable. The electrode-cleaner is also stationary and selectively engages the electrode along its working length. The opposing ends of the electrode are fixed to the opposing spool assemblies which selectively move the ionizing electrode such that the electrode- cleaner removes at least some of the surface degradation products from the electrode during movement. Methods of using the disclosed ionizer have self-cleaning and ionization modes of operation, which may occur cyclically, alternately, or simultaneously, are also disclosed.