Electron Beam Sterilization Apparatus with Ventilated X-Ray Blocking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current electron beam sterilization devices face issues with ozone gas accumulation due to inadequate ventilation, leading to corrosion, despite effective X-ray blocking mechanisms.
Innovation Solution
The electron beam sterilization apparatus incorporates a tubular blocking member with ventilation spaces and arcuate blocking plates on a rotation conveyor plate to block X-rays while allowing ozone gas to flow out, reducing accumulation and corrosion risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a cylindrical blocking member is mounted on a rotation table to block X-rays, then X-ray blocking capability is improved, but ventilation space is reduced causing ozone gas accumulation
Solution Approach 1:
The blocking member is divided into multiple arcuate blocking plates arranged around the central axis, creating segmented structure with ventilation spaces between the plates. This segmentation allows simultaneous X-ray blocking and ozone gas ventilation, resolving the contradiction between radiation protection and gas discharge.
Solution Approach 2:
The blocking member incorporates ventilation spaces formed between arcuate blocking plates, creating a porous-like structure that allows ozone gas to pass through while maintaining X-ray blocking capability. This enables the blocking member to function as both radiation shield and ventilation pathway.
2Object-affected harmful factors
If multiple rotation tables with blocking members are used to sufficiently block X-rays, then X-ray blocking capability is improved, but device complexity and chamber数量 increase
Solution Approach 1:
Multiple arcuate blocking plates are merged into a single integrated blocking member structure mounted on one rotation table. This consolidation achieves sufficient X-ray blocking through the combined effect of multiple plates while avoiding the complexity of multiple separate rotation tables and chambers.
Solution Approach 2:
The blocking member extends in the radial direction with multiple arcuate plates arranged circumferentially, utilizing the radial dimension to achieve enhanced X-ray blocking without increasing the number of rotation tables. This dimensional approach allows single-table configuration with multiple blocking elements.
3Object-affected harmful factors
If the blocking member has integral structure with no ventilation space, then X-ray blocking capability is improved, but ozone gas discharge capability deteriorates
Solution Approach 1:
The integral structure is segmented into multiple arcuate blocking plates with gaps between them, creating ventilation spaces that allow ozone gas to pass through. This segmentation maintains X-ray blocking capability while enabling gas discharge functionality.
Solution Approach 2:
Different regions of the blocking member have different properties: the arcuate plates provide X-ray blocking in radiation-exposed areas, while the spaces between plates provide ventilation pathways in gas-accumulation areas. This local differentiation resolves the contradiction between blocking and venting functions.
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 design effectively minimizes ozone gas accumulation and prevents corrosion within the device, ensuring safer operation and longer equipment lifespan.
Implementation Method 1
a tubular blocking member is provided on a lower surface of the rotation conveyor plate so as to block radioactive rays produced by application of the electron beam
Implementation Method 2
an electron beam application device configured to apply an electron beam to the container being conveyed by the rotation conveyor plate
Implementation Method 3
the electron beams cause a chemical reaction of the air that produces ozone gas
Data Source
Figure 1
Figure 2
Figure 3
AI summary
One object is to provide an electron beam sterilization apparatus for sterilizing a preform product (P) by applying an electron beam while conveying the preform product (P), the apparatus comprising: an input star wheel (21) configured to convey the preform product (P) in a circular path; and an outer-surface electron beam application device and an inner-surface electron beam application device configured to apply an electron beam to the preform product (P) being conveyed by the input star wheel (21). A blocking short tube (31) is provided on a lower surface of the star wheel plate (22) of the input star wheel (21) so as to block radioactive rays produced by application of the electron beam and surround a central axis (lv) of the input star wheel (21). The blocking short tube (31) includes a ventilation space (34) formed therein.