Liquid Tank Flow Control for Abnormal Substance Removal
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Solution Overview
Problem
Existing methods struggle to effectively control the quality of liquid substances in on-demand production systems, where maintaining product quality while promptly replacing abnormal substances is crucial, as tanks with large volumes lead to retention and degradation, affecting product quality.
Innovation Solution
A flow control method that derives parameters related to the flow state of the liquid substance and adjusts the flow range based on these parameters to manage the presence of abnormal substances, ensuring quality control and timely replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the tank volume is increased to ensure sufficient liquid substance supply for on-demand production, then the productivity and supply capability are improved, but the liquid substance retention time increases causing degradation and solidification, which worsens the product quality
Solution Approach 1:
The patent applies dynamics by making the flow control parameters adjustable and variable rather than fixed. The flow rate and flow path are dynamically changed based on real-time detection of liquid substance state, allowing the system to adapt between different operational modes (normal operation vs. abnormal substance removal) to resolve the contradiction between maintaining supply capability and preventing degradation
Solution Approach 2:
The patent implements feedback control by detecting the state of the liquid substance (whether abnormal substances are present) and using this information to adjust the flow control. The detection result feeds back to the flow control mechanism, which then modifies the flow range and pattern to either maintain normal operation or actively remove abnormal substances, thereby maintaining product quality while preserving supply capability
2Manufacturing precision
If the flow rate is increased to prevent liquid substance retention and degradation, then the product quality is improved, but the flow stability decreases causing process instability, which worsens the manufacturing reliability
Solution Approach 1:
The system dynamically adjusts the flow rate based on detected conditions. During normal operation, a stable flow rate is maintained for reliability. When abnormal substances are detected, the flow rate is dynamically changed to a higher value with different flow patterns to remove the abnormal substances, thereby maintaining product quality without compromising overall process reliability through unstable flow
Solution Approach 2:
The patent employs periodic flow control patterns when removing abnormal substances, using alternating flow directions or pulsating flow to effectively flush out degraded materials from the tank. This periodic action ensures complete removal of abnormal substances while maintaining overall flow stability during normal operation periods
Data Source
AI summary
A flow control method in a tank into and from which a liquid substance flows and flows out includes deriving a parameter related to a flow state of the liquid substance as a calculation result, and adjusting a flow range of the liquid substance based on the calculation result.