Equipment Type
Blower
Equipment Name
Process Blower
Faults
Rolling Bearing Abnormality
Early Detection of Blower Rolling Bearing Abnormality
How Wisper-Powered Monitoring Ensured Continuous Operation at a Chemical Plant
Chemical
Introduction
In chemical manufacturing, operational continuity is a necessity. Unexpected equipment failure can lead to production losses and significant financial impact. This case study demonstrates how an AI-powered condition monitoring solution detected an early-stage fault in a critical blower system, allowing maintenance teams to take timely action and avoid unplanned downtime.
Equipment Overview
A blower is a device that converts mechanical energy into the kinetic and pressure energy of a gas via a rotating impeller or rotor. Core components (such as the impeller, volute) rotate at high speed, and the blades push the air to create centrifugal force or axial flow, accelerating the gas and increasing its pressure energy. The fundamental principle is to increase the pressure and flow of the gas through mechanical work, which is then delivered to the target system via the outlet.
The Challenge
Ensuring continuous operation in a chemical plant requires near-perfect monitoring accuracy to manage high-consequence failures. The irregular operation of critical assets can make establishing baselines and identifying anomalies difficult, increasing the chance of missing warning signs of failure. Accurate fault diagnosis, such as detecting a subtle abnormality in a rolling bearing, is essential for proactive maintenance and maintaining process stability.
Wisper Solution
Wisper CMS provided health status monitoring for the blower in the chemical plant. Shortly after the system deployment on November 21, 2024, the Wisper CMS detected an abnormal feature at the blower's input end, diagnosing the issue as a rolling bearing abnormality, potentially in the bearing cage, based on an optimized kurtosis indicator. The system triggered a diagnostic warning, advising the user to monitor the equipment's status.
Wisper CMS diagnostic report (Nov 21, 2024)
Timeline of Events
The outcome
Following the intervention, the abnormal indicator returned to a healthy running state after the equipment was restarted. The on-site inspection result was fully consistent with the diagnostic report, confirming the system's accuracy. By identifying the issue in advance, the AI system enabled proactive maintenance actions, reducing downtime risk and ensuring operational continuity.
understanding the root cause
Rolling bearing abnormality can arise from multiple factors,including:
Wear of the rolling bearing due to long-term use and load.
Improper bearing lubrication.
Incorrect bearing installation.
Dust, particles, or other foreign matter entering the bearing.
Operation in extreme environments, such as high temperature, low temperature, high speed, high vibration, or high humidity.
Severe overload or shock vibration.
Electrical corrosion caused by high shaft voltage.
