Extension Nozzle with Leaking Section for Uniform Electron Beam Irradiation
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Solution Overview
Problem
Existing internal surface electron beam-irradiating devices inadequately sterilize the internal surfaces of containers, particularly 'square-shouldered' containers like vials and eye droppers, due to uneven irradiation patterns, leading to inefficient sterilization.
Innovation Solution
The device incorporates an extension nozzle with a leaking section that includes empty portions and a component portion, allowing for the controlled discharge of the electron cloud to achieve more uniform irradiation, reducing directivity and ensuring thorough sterilization of the internal surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If an extension nozzle is added to improve electron beam directivity, then the electron beam directivity is improved, but the irradiation uniformity deteriorates
Solution Approach 1:
The extension nozzle is divided into multiple sections with different functions: a first extension nozzle for guiding the electron cloud and a second extension nozzle with a leaking section for discharging part of the electron cloud. This segmentation allows the system to achieve both directivity and uniformity by controlling electron cloud distribution through different structural zones.
Solution Approach 2:
Different sections of the extension nozzle have different structural characteristics to achieve different local functions. The leaking section specifically discharges part of the electron cloud to improve irradiation uniformity in certain areas, while other sections maintain the directing function. This local quality adjustment resolves the contradiction between overall directivity and local uniformity.
2Productivity
If the electron cloud is discharged more directly, then the sterilization speed is improved, but the irradiation coverage deteriorates
Solution Approach 1:
The extension nozzle structure segments the electron cloud discharge path into different zones. The leaking section allows controlled discharge of part of the electron cloud to cover areas that would otherwise be missed by direct discharge, thereby expanding irradiation coverage without significantly compromising sterilization speed.
Solution Approach 2:
The leaking section acts as an intermediary structure that mediates between direct discharge (for speed) and dispersed discharge (for coverage). By strategically positioned empty portions in the leaking section, the system achieves a balance where the electron cloud is discharged efficiently while also covering a broader area.
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
This configuration enables more uniform irradiation of the internal surfaces, ensuring sufficient sterilization with higher efficiency, particularly for containers with complex shapes like vials and eye droppers.
Implementation Method 1
an electron beam generator (3) configured to generate an electron beam (E)
Implementation Method 2
The electron beam E emitted from the output window 4 provided at tip of the vacuum nozzle 102 is released into the air and collides with air molecules or the like, so that the electron beam F expands as an electron cloud C
Data Source
AI summary
An internal surface electron beam-irradiating device sterilizes the internal surface of a vial by irradiation with an electron beam. The internal surface electron beam-irradiating device includes an electron beam generator that generates the electron beam, a vacuum chamber containing the electron beam generator, an output window that emits the electron beam to the outside of the vacuum chamber, and an extension nozzle that guides an electron cloud formed by extending the electron beam emitted from the output window. The extension nozzle includes a leaking section that leaks the electron cloud. The leaking section includes empty portions that discharge part of the electron cloud to the outside, and a component portion that guides the electron cloud into the leaking section.