Nirafon Acoustic Cleaning System up to 1000°C

 – cleaning build ups in solid form

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NACS® Operation Principle

Nirafon Acoustic Cleaning Systems utilise the energy in the low frequency sound waves (60-250Hz) generated by a pneumatically operated Acoustic Horn. This energy resonates and dislodges dust, soot or other particulate matter which tends to deposit on various surfaces of industrial equipment. The ability of sound waves to move in three dimensional space, even into nooks and crannies, makes it possible for Acoustic Cleaners to reach and clean all inaccessible places and even surfaces that are hidden around corners, which otherwise cannot be cleaned using conventional methods.

Nirafon Acoustic Cleaning Systems generate sound pressure levels of more  than 150dB by pneumatic activation of a specially designed Diaphragm housed inside the Generator of the Acoustic Horn.These pressure peaks are generated in controlled bands of frequencies found to be most effective in breaking bonds between the particles of the deposits and the equipment surfaces as well as between the particles themselves, leading to their dislodgement.

Our present range of Acoustic Cleaning Systems can work effectively up to application temperatures of 1000°C for which suitable material of construction (Cast Steel/Stainless Steel) is selected.

Nirafon Acoustic Cleaning Systems (NACS) come with a high degree of operational flexibility suited to the requirements of the applications.

The sounding cycle parameters can be set individually to optimize the cleaning effect.

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Principle Advantages

The advantages of the nirafon system are as follows :

  • Cleaning during process
  • Heat transfers and other surfaces to be cleaned stay permanently clean and the process can continue without interruptions, rendering expensive shutdowns unnecessary
  • Also cleans the shadow areas and around the corners.
  • Acoustic cleaning reduces the use of water drastically in plant
  • Does not cause any harm to structures 
  • No mechanical wear, corrosion or erosion
  • Acoustic Cleaners require little space,
  • Maintainence and operating cost are low
  • The refund time of the system is short
  • A tailor made plan is always drawn up by Nirafon Oy according to the buyer’s need and application.

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Technical Specification

NI 250-SS & 250/90-SS TECHNICAL DATA

Operation Frequency : 250 Hz
Sound pressure : 150dB
Material : AISI316
Compressed air compression : 6 bar
Cleaning : 40 Ndm 3/s
Cooling : 2 Ndm 3/s continuously
Operation temperature (flue gas) : upto 800°C

NI 250-SS & 250/90-SS TECHNICAL DATA

Operation Frequency : 250 Hz
Sound pressure : 150dB
Material : AISI316
Compressed air compression : 6 bar
Cleaning : 40 Ndm 3/s
Cooling : 2 Ndm 3/s continuously
Operation temperature (flue gas) : upto 800°C

ni 100-ss & 100/90-ss Technical data

Operation Frequency : 60 Hz
Sound pressure : 150dB
Material : AISI316
Compressed air compression : 6 bar
Cleaning : 40 Ndm 3/s
Cooling : 2 Ndm 3/s continuously
Operation temperature (flue gas) : upto 1000°C