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SMART Rapping System
SMART Rapping System

Operating Principle

  • Rapping the fouled heat exchanger tube bundles with pneumatic cylinders induces oscillations, which shakes off the build-up deposit
  • Individually adjustable impact energy allows targeted optimisation of the heating surface cleaning procedure, ensuring that the overall efficiency of the evaporators, superheaters and economisers are kept consistently high

Technical Summary

A rapping device system is a special product for cleaning horizontal passes, especially for waste-to-energy plants and other industrial applications. Rapping device systems can be applied to remove deposits from the heating surfaces without any additional cleaning medium like steam, air or water.

  • General Application Areas: Superheater, Reheater, Economiser
  • Key Industries: Waste-to-Energy, Other Industrial Processes

Key Features

  • Pneumatically operated independent impact cylinders
  • Impact Energy: Cylinders with 120 J, 150 J and 200 J output
  • Highly flexible & optimised cleaning by individually adjusting impact energy and frequency of ramming based on the fouling degree
  • Integrated force compensation
  • Low noise level
  • Low air consumption for activation of single rappers
  • Sealing air to prevent the admission of flue-gases in case of positive pressure mode
  • Optical operating pressure indicator (optional)
  • Wear indicator on cylinders to provide constant check to operating staff
  • Profibus connection to process control system (optional)

Product Benefits

  • Increased plant availability due to reliable cleaning, resulting in efficient plant operation
  • Prevents fouling in convection areas of the boiler
  • Increased boiler efficiency through improved heat transfer
  • Reduced gas exit temperatures
  • Compact design through direct mounting on rapping points, thus eliminating need for steel structure (as compared to conventional rapping systems)
  • No air or steam needed as blowing medium
  • Low maintenance expenses, less spare parts and reduced operating costs
  • Comfortable operation and feedback to the control room
  • Intelligent, flexible operation, in conjunction with SMART Clean Compact


Spare parts & service

Our services, knowledge and experience are utilised to provide optimal support and are tailored specifically to individual customer requirements. From spare parts to surveys, maintenance and training – we cover your needs.

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