Systems and methods for optical detection of refrigeration system abnormalities
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Solution Overview
Problem
Current refrigeration systems lack efficient methods for accurately determining refrigerant and lubricant levels, leading to potential operational inefficiencies and failures due to insufficient or excessive refrigerant charges, which can result in compressor flooding.
Innovation Solution
An optical sensor system is integrated with sight glasses in refrigeration systems to measure light reflectivity, using FFT and standard deviation analysis to generate data on refrigerant and lubricant levels, and transmit alerts when thresholds are exceeded, enabling real-time monitoring and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional sight glass observation methods are used, then system complexity is reduced, but measurement precision of refrigerant and lubricant levels deteriorates
Solution Approach 1:
The patent replaces the manual mechanical observation method with an automated optical sensing system. The optical sensor detects light reflectivity changes in the sight glass to automatically determine refrigerant and lubricant levels, eliminating the need for manual visual inspection and significantly improving measurement precision while enabling continuous monitoring.
Solution Approach 2:
The patent introduces light as an intermediary to detect liquid levels. The optical sensor uses light reflectivity properties to indirectly measure refrigerant and lubricant levels in the sight glass, providing accurate measurements without direct contact with the liquids and enabling non-intrusive monitoring.
2Reliability
If manual observation methods are used, then device complexity is minimized, but reliability of system operation deteriorates due to potential operational inefficiencies
Solution Approach 1:
The patent implements a feedback mechanism where the optical sensor continuously monitors refrigerant and lubricant levels, and the control module receives real-time data to detect abnormalities. The system can trigger alerts or control signals when levels deviate from normal ranges, enabling proactive maintenance and preventing system failures, thus significantly improving operational reliability.
Solution Approach 2:
The system performs self-monitoring and self-diagnosis of refrigerant and lubricant levels without requiring external manual intervention. The optical sensor and control module work autonomously to detect abnormalities and generate alerts, reducing dependency on manual checks and improving system reliability through continuous automated surveillance.
3Productivity
If frequent manual checks are performed, then measurement precision is maintained, but loss of time and productivity increases
Solution Approach 1:
The patent enables continuous monitoring of refrigerant and lubricant levels through the optical sensor system, which operates without interruption to track liquid levels in real-time. This eliminates the need for periodic manual checks and maintains constant surveillance of system conditions, significantly improving productivity by eliminating downtime associated with manual inspections while providing continuous accurate data.
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 solution provides accurate and timely detection of refrigerant and lubricant levels, preventing inefficiencies and compressor flooding by generating alerts for insufficient refrigerant and excessive refrigerant charges, thus enhancing system performance and reliability.
Implementation Method 1
an optical sensor configured to generate signals based on a light reflectivity associated with a liquid of the refrigeration system
Data Source
AI summary
Systems and methods are provided and include an optical sensor configured to be disposed on a sight glass. The optical sensor is configured to generate signals based on a light reflectivity associated with a liquid of the refrigeration system. An optical sensor control module that includes a processor that is configured to execute instructions stored in a nontransitory memory, and the instructions include (i) generating a set of data based on the signals, and (ii) determining an amount of liquid of the refrigeration system based on the set of data.