Fujian Energy & Petrochemical Group
DHMSCare caught early misalignment on a coal-fired power station's secondary fan, and the plant avoided an unplanned shutdown.
- 8daysMisalignment caught before it turned severe
- 65%Fewer unplanned shutdowns
from 5.6 to 2 per year - 4.5→1.2hMean time to repair
- 70%Less manual meter reading and inspection work
About the customer
Fujian Energy & Petrochemical Group operates the coal-fired power station in this case. DHMSCare monitors the secondary fan of its Furnace No. 3 and auxiliary pumps elsewhere in the plant.
The challenge
A coal-fired power station runs around the clock, and its fans and pumps must keep running for each boiler to stay online. When a key fan stops without warning, the boiler it serves can be forced out of service.
Manual rounds took much of the team's time
Manual meter reading and inspection rounds took much of the team's time, and environmental compliance reports took many person-days every month.
A fault between rounds could stay unseen
A fault that develops between two rounds can go unseen until it forces a stop.
Monitored equipment and installation
Findings and response
- 7 January 2025
DHMSCare flags early misalignment on the secondary fan of Furnace No. 3
- Evidence
Rising vibration and the vibration pattern typical of misalignment appeared together
- Eight days before it turned severe
The plant acted in time
- Result
An unplanned shutdown was avoided
Vibration trend
Spectrum pattern
Value
Misalignment caught eight days early
DHMSCare flagged early misalignment on 7 January 2025, eight days before it turned severe, after rising vibration and the vibration pattern typical of misalignment agreed. The plant acted in time and avoided an unplanned shutdown.
Fewer shutdowns, faster repairs
The plant reported that unplanned shutdowns fell by 65%, from 5.6 to 2 per year, and that the mean time to repair fell from 4.5 hours to 1.2 hours.
Less manual work
The plant reported 70% less manual meter reading and inspection work, and about 20 person-days a month saved on environmental compliance reporting.
Products and deployment
- Software ProductDHMSCare - AI Care Version
- Terminal ProductDHMSCare wireless vibration and temperature sensors and smart gateways
- Monitoring scopeSecondary fan of Furnace No. 3; auxiliary pumps elsewhere in the plant.
Related case studies
Explore plans and packages, or start with a trial.