Aseptic Bottle Inspection Chamber with Positive-Pressure Isolation
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Solution Overview
Problem
Existing aseptic filling apparatuses face challenges in maintaining asepticity after preforms are molded into bottles, as inspection units are not sterilized before operation, risking contamination and equipment corrosion from sterilizing agents.
Innovation Solution
An aseptic filling apparatus with an inspection unit enclosed in an airtight container, sterilized before operation, and maintained with aseptic air at positive pressure, ensuring asepticity through sterilization devices and aseptic air supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the inspection unit is not sterilized before operation, then the apparatus structure remains simple, but asepticity cannot be ensured and equipment may be corroded by sterilizing agents
Solution Approach 1:
The inspection unit is separated from other units and enclosed in an airtight container, creating an independent sterilizable zone. This segmentation allows the inspection unit to be sterilized separately before operation while keeping the rest of the apparatus structure relatively simple.
Solution Approach 2:
The inspection unit is sterilized before the aseptic filling apparatus is operated. This preliminary sterilization action ensures asepticity is established in advance, preventing contamination and equipment corrosion without requiring complex continuous sterilization systems.
2Reliability
If sterilizer is sprayed in the sterilizing unit, then preform sterilization is effective, but sterilizer may flow into the inspection unit and corrode equipment
Solution Approach 1:
The inspection unit is enclosed in an airtight container that physically separates it from the sterilizing unit. This segmentation prevents sterilizer sprayed in the sterilizing unit from flowing into the inspection unit, eliminating equipment corrosion risk while maintaining sterilization effectiveness.
Solution Approach 2:
The airtight container acts as an intermediary barrier between the sterilizing unit and inspection unit. It allows the sterilization process to proceed effectively in the sterilizing unit while protecting the inspection unit from harmful sterilizer exposure.
3Reliability
If aseptic air is not supplied to the inspection unit, then the system is simpler, but bacteria may enter the inspection unit and contaminate bottles
Solution Approach 1:
The inspection unit is sterilized before operation as a preliminary action. This establishes aseptic conditions in advance, and when combined with aseptic air supply during operation, ensures continuous protection against bacterial contamination without requiring overly complex systems.
Solution Approach 2:
Aseptic air is supplied to the inspection unit during operation, creating an inert aseptic atmosphere that prevents bacteria from entering and contaminating bottles. This maintains reliability while keeping the system practical.
Data Source
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AI summary
Provided is an aseptic filling apparatus which performs sterilization on preforms, and which includes a bottle inspection unit capable of maintaining asepticity with certainty. An aseptic filling apparatus includes an inspection unit where inspection equipment, which inspects a bottle is accommodated in an airtight container so as to prevent the inspection equipment from coming into contact with sterilizer.