Monitoring and Balancing Draught Plant and Pumping Equipment in Power Generation
Reliability is the watchword of the power-generation industry. The fault-free operation of equipment at combined heat and power plants, power stations and boiler houses underpins the stability of the entire energy supply. Any unplanned shutdown means not only direct financial loss but also serious technological risk.
Vibration is the principal indicator of emerging problems. Timely vibration monitoring and balancing of critical equipment makes it possible to prevent breakdowns.
The specifics of power generation:
- Equipment runs 24/7; downtime is unacceptable
- Cost of an hour of emergency boiler shutdown: from £17,000 to £67,000
- The equipment is large; dismantling is extremely difficult
- High demands on reliability and safety
Typical assets and their problems
1. Flue-gas fans and forced-draught fans of boiler units
Function: they provide the draught in the boiler and supply combustion air.
Typical problems:
- Imbalance due to blade wear: high-temperature gases cause uneven erosion
- Ash and clinker build-up: combustion products accumulate on the blades
- Corrosion: the aggressive environment attacks the impeller material
- Destruction of bearings and foundations: from constant vibration
2. Pumps (feed, circulation, condensate)
Function: they circulate water and steam through the thermal cycle.
Typical problems:
- Vibration leads to mechanical seal failure: leaks and the need for frequent replacement
- Bearing wear: especially critical for high-pressure pumps
- Cavitation damage: made worse by vibration
Solutions with the Balanset-1A for power generation
The portable Balanset-1A vibration analyser and balancer is ideally suited to the service and repair crews of power-generation companies:
Capabilities:
- On-site balancing: of flue-gas fan and fan impellers without costly dismantling
- Vibration diagnostics: assessing the condition of pump-set bearings
- Pinpointing the cause of vibration: imbalance, misalignment, looseness, bearing faults
- Forecasting: determining when a repair will be needed
Services for power-generation companies
Balancing draught plant and pumps at CHP plants and boiler houses
Request the serviceThe advantages of predictive maintenance
Introducing regular vibration monitoring makes it possible to move from scheduled preventive maintenance to maintenance "based on actual condition":
The traditional approach (scheduled maintenance):
- Repair to a timetable (for example, once a year)
- Perfectly sound components are often replaced
- Or, conversely, a fault develops between scheduled repairs
The predictive approach:
- Continuous or periodic vibration monitoring
- Repair only when it is genuinely needed
- Early detection of developing faults
- Planning repairs well in advance
A real case: a precast-concrete plant — balancing a flue-gas fan
Starting situation
Equipment: a boiler-unit flue-gas fan, 200 kW
Problems:
- Elevated vibration of the casing and foundation
- Frequent bearing replacement (every 4 months instead of the design figure of 2 years)
- Increased energy consumption
- Risk of an emergency shutdown
Work carried out
Solution: dynamic balancing of the flue-gas fan impeller directly at the installation site (without dismantling)
Time taken: 3 hours (during a scheduled boiler shutdown)
Results achieved
- Vibration reduced: from 8.0 mm/s to 1.2 mm/s (a factor of 6.7)
- Bearing life: rose from 4 months to 2 years
- Electrical energy saving: £7,000 a year (consumption reduced by ~18%)
- ROI (payback): 1.5 months
This case clearly shows that balancing critical equipment in power generation is not an expense but a highly profitable investment in reliability.
Key benefits for power-generation companies
- Preventing emergency shutdowns: critical for boiler houses and CHP plants
- Moving to condition-based maintenance: repair when needed, not to a timetable
- Lower energy consumption: 5–10% savings for large machines
- Longer service life: of bearings, seals and the equipment itself
- Optimised costs: on spare parts and repairs
📖 More detail: 5 causes of vibration in industrial fans and flue-gas fans
Balancing for power generation
Instruments and services for CHP plants, power stations and boiler houses
Balanset-1A instrument
A vibration analyser for monitoring turbines, flue-gas fans and fans
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Balancing and vibration monitoring of critical equipment
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