Reciprocating Compressor Stiffness Monitoring via Sensor Fusion
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Solution Overview
Problem
Reciprocating compressors face issues with structural fatigue and premature failure due to asymmetric loads, mechanical wear, and operational detriments, which are not effectively monitored by existing methods that require costly and time-consuming manual inspections.
Innovation Solution
A condition monitoring system equipped with pressure and vibration sensors that calculate the stiffness of the reciprocating compressor, enabling real-time monitoring and automatic shutdown when conditions deviate from predefined norms, thus preventing damage and extending operational life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual inspections are used to monitor compressor condition, then monitoring can be performed, but the process becomes expensive and time-consuming
Solution Approach 1:
The patent replaces manual mechanical inspections with an automated electronic monitoring system that uses sensors (vibration, pressure, temperature) and a processor to continuously assess compressor health. The system calculates a health index based on sensor data, eliminating the need for manual disassembly and visual inspection while providing continuous, objective condition assessment.
Solution Approach 2:
The monitoring system enables the compressor to self-diagnose its condition by continuously collecting and analyzing its own operational data through integrated sensors and processing units. The system automatically detects anomalies, calculates health indices, and can trigger alerts or shutdowns without external intervention, allowing the equipment to monitor itself continuously.
2Reliability
If manual inspections are used to monitor compressor condition, then monitoring can be performed, but the process becomes expensive
Solution Approach 1:
The patent replaces costly manual inspection processes with an automated electronic monitoring system using standard sensors and processors. This substitution eliminates labor costs, reduces downtime, and provides continuous monitoring capability that would be prohibitively expensive to achieve through manual methods alone.
Solution Approach 2:
The system creates a digital replica or model of the compressor's health state by continuously measuring physical parameters (vibration, pressure, temperature) and processing them into a health index. This digital copy allows for continuous assessment without physical intervention, reducing the cost and disruption of actual inspections.
3Measurement precision
If continuous monitoring is implemented, then compressor health can be tracked in real-time, but system complexity increases
Solution Approach 1:
The monitoring system is divided into modular functional components: sensor modules (vibration, pressure, temperature), signal processing module, health index calculation module, and control module. Each component performs a specific function, making the overall complex system manageable through clear segmentation and independent optimization of each module.
Solution Approach 2:
The monitoring system is designed to be universally applicable to different compressor types and configurations. The same basic architecture (sensors + processor + health index algorithm) can monitor various compressor designs, reducing the need for specialized complex systems for each application and simplifying implementation across different equipment.
Data Source
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AI summary
A condition monitoring system (12) for use with a reciprocating device is provided. The condition monitoring system includes at least one pressure sensor (116) configured to sense a pressure within the reciprocating device, at least one vibration sensor (132) configured to sense a vibration of the reciprocating device, and a protection system (22) communicatively coupled to the pressure sensor and the vibration sensor, the protection system configured to calculate a stiffness value of the reciprocating device based on the sensed pressure within the reciprocating device and the sensed vibration of the reciprocating device.