Liquid Supply System for Hazardous Chemicals
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Solution Overview
Problem
Existing liquid supplying systems fail to accurately measure and handle hazardous chemicals like peracetic acid, posing risks of skin contact and inaccurate dosing.
Innovation Solution
A liquid supplying system with a processing chamber, measuring chamber, and controlled valve mechanisms that create negative pressure to accurately measure and handle chemicals, preventing skin contact and ensuring precise dosing through a series of controlled processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a liquid supplying system uses a strong stimulant liquid (e.g., peracetic acid) for sterilization, then sterilization effectiveness is improved, but the risk of skin contact and inflammation increases
Solution Approach 1:
The system divides the liquid handling process into separate sealed chambers: a storage chamber for the hazardous liquid, a measurement chamber for dosing, and a supply chamber for delivery. This segmentation isolates the hazardous liquid from direct human contact while maintaining sterilization effectiveness.
Solution Approach 2:
The patent introduces an automated control system with sensors and actuators as intermediaries between the hazardous liquid and the user. The control part automatically manages valve operations and liquid transfer, eliminating direct human interaction with the stimulant liquid.
2Measurement precision
If the liquid supplying system manually measures and transfers liquid, then device complexity is reduced, but measurement accuracy deteriorates
Solution Approach 1:
The patent replaces manual mechanical measurement with an automated system using sensors, control circuits, and programmable logic. The control part monitors liquid levels and transfer processes electronically, achieving precise measurement without complex manual mechanical mechanisms.
Solution Approach 2:
The system incorporates self-regulating mechanisms where sensors automatically detect liquid levels and trigger valve operations without human intervention. The control part manages the entire liquid transfer process autonomously, maintaining accuracy while simplifying the user interface.
3Reliability
If the system uses multiple valves and chambers for controlled liquid transfer, then safety is improved, but operation time increases
Solution Approach 1:
The patent implements a cyclic automated control sequence where valves and pumps operate in predetermined periodic stages: filling the measurement chamber, transferring liquid, and resetting. This periodic automation maintains safety through controlled sequential operations while reducing overall operation time compared to manual procedures.
Solution Approach 2:
The system maintains continuous liquid transfer through automated valve coordination and pump operation, eliminating idle time between manual operations. The control part ensures seamless transition between chambers, keeping the useful action of liquid supply continuous while maintaining safety protocols.
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 system effectively measures and supplies hazardous chemicals like peracetic acid accurately, preventing skin contact and ensuring precise dosing, enhancing safety and reliability in applications such as gas sterilization apparatuses.
Implementation Method 1
a first means executing a first process of driving the first depressurizing means to depressurize the processing chamber so as to form a negative pressure in the processing chamber
Implementation Method 2
a fifth means executing a fifth process of opening the second valve with the first valve closed so as to suck the liquid in the measuring chamber into the processing chamber by using a vacuum in the processing chamber
Data Source
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AI summary
Provided is a system for supplying a liquid (such as an irritative chemical solution) safely. This liquid supplying system comprises: (a) a means that creates a negative pressure in a treatment chamber by driving a first depressurizing means and depressurizing the treatment chamber; (b) a means that introduces the negative pressure of the treatment chamber to a measurement chamber; (c) a means that maintains the negative pressure introduced to the measurement chamber; (d) a means that sucks a liquid from a container into the measurement chamber by employing the negative pressure of the measurement chamber; and (e) a means that sucks the liquid of the measurement chamber into the treatment chamber by employing a vacuum in the treatment chamber.