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Wall Blower

Wall Blower is a sootblower suitable for the cleaning of wall heating surfaces with heavy slagging and high flue gas temperatures up to 1.800 °C.

The Wall Blower is fully retracted from the furnace when not in use to protect the nozzle and screw tube from the high heat conditions found in the furnace.

There are two type of Wall Blower.
The Wall Blower VS-H is used for the cleaning of heat exchangers, DeNOx, air preheaters and gas-gas heaters with steam/air at flue gas temperatures < 1.600°C.  The Wall Blower F149 for the cleaning of wall heating surfaces with heavy slagging with the cleaning medium water.

Principle of cleaning

Wall Blower VS-H

  • The nozzle head with two opposite high-performance nozzles is axially moved into the boiler
  • The blowing process begins as soon as the nozzle head has reached the blowing position
  • During this process the tube wall is cleaned in circular form
  • A special control of the valve also enables cleaning of specific segments
  • After performing the necessary number of rotations the nozzle head returns to its rest position

 

Wall Blower F149

  • The lance tube with two opposite special nozzles is helically moved into the boiler
  • The blowing process begins as soon as the nozzle head has passed through the tube wall
  • During the blowing process the lance tube continues to move helically into the boiler
  • During this process the tube wall is cleaned in circular form
  • A special control of an additional solenoid valve also enables cleaning of specific segments
  • On reaching the front-side end position the direction of movement changes and the lance tube returns to its rest position
Features

Wall Blower VS-H

  • Force actuated blowing valve to avoid any uncontrolled steam flow
  • High temperature-resistant nozzle head material and stainless steel feed- tube material     
  • High performance nozzles for maximum conversion of steam pressure to jet velocity for high cleaning efficiency
  • Sturdy tube spindle in lines with overall product stability
  • Integrated stop valve with adjustable throttle disc for comfortable adjustment of the blowing pressure
  • Temperature-resistant nozzle head material
  • High-performance nozzles
Features

Wall Blower F149

  • Integrated stop valve
  • Adjustment of droop velocity of the water jet to preserve the tube wall during cleaning
  • Temperature-resistant lance tube material
  • Special nozzles
  • Stainless feed tube material
  • Sturdy driving spindle
Options
  • SMART Set for external setting facility of throttle disc
  • Sound protected design of covering and wall-box
  • Self-adjusting stuffing box packing
Your Benefits
  • Extended boiler availability and increased boiler efficiency
  • Checks deposit build-up regardless of flexible boiler operation and changing fue mixture or varying fuel quality
  • Prevents slagging in the furnace area
  • Maximised thermal efficiency and reduces gas exit temperatures
  • Clyde Bergemann sootblowers are reliable and simple to maintain
  • The Clyde Bergemann design optimise cleaning effect and minimise consumption of steam, water  and air