Energy Industry

Reliable Fly Ash Removal from Heat Exchangers – High-Frequency Impactors Increase Efficiency in Biomass Power Plants

During fuel combustion, combined heat and power plants generate fly ash that settles on heat exchanger tube bundles. These fine deposits act as an insulating layer and significantly reduce heat transfer performance.

  • Reduced heat transfer efficiency
  • Frequent shutdowns required for manual cleaning
  • Manual removal is time-consuming and labor-intensive
Our solution

In close cooperation with a local application engineer, the operator of a biomass power plant implemented the pneumatically driven high-frequency impactor NHK from NetterVibration. The unit was mounted directly on the heat exchanger and configured to match the specific process requirements. A control system triggers the impact pulses at defined intervals.

  • Continuous or interval-based detachment of fly ash deposits
  • Pneumatic operation ensures reliable performance even in harsh operating environments
  • Simple and direct installation on the heat exchanger
Our advantages
  • Improved heat transfer and more stable process efficiency
  • Increased plant availability and longer operating cycles
  • Reduced mechanical stress on equipment due to controlled vibration
  • Elimination of labor-intensive and time-consuming manual cleaning