FAQ
The acoustic sootblower uses compressed air as its power source. The compressed air enters the sound generator and periodically impacts the titanium alloy diaphragm, causing it to vibrate at high frequency to generate low-frequency, high-intensity sound waves; the sound waves are transmitted to the ash accumulation area, and the adhesion between the ash and the equipment surface and the binding force between the ash particles are destroyed by vibration, causing the accumulated ash to loosen and finally detach from the equipment surface under the action of flue gas flow or gravity, completing the ash removal process.
Simple structure and easy maintenance (no complex mechanical parts)
Wide dust removal coverage (can cover equipment blind spots)
No mechanical damage (relies on ultrasonic vibration instead of impact)
Low energy consumption (only requires compressed air drive)
The acoustic sootblower consists of an acoustic transducer, a conical tube, a horn, a pneumatic control box, and an electric control box. Through acoustic vibration, ash deposits on the superheater, economizer, air preheater, SCR catalyst layer, electrostatic precipitator plates, and other parts are removed due to low-frequency, high-amplitude sound waves. This achieves ash removal technology without mechanical wear and tear, safely covering blind spots.
The acoustic sootblower uses low-frequency sound waves to vibrate the ash layer, causing "acoustic fatigue" and shedding. This mechanism is effective for loose and lightly sticky ash, but heavily sticky ash, due to its high proportion of sulfur, chlorine, and alkali metals, has strong inter-particle adhesion, making it difficult for sound wave vibration to completely destroy its structure. It is recommended to use a combination of sound waves and steam sootblowers. Sound waves are used for daily preventive cleaning (to inhibit new ash adhesion), and steam sootblowing is performed 1-2 times a month for strong cleaning of the consolidated layer. The combined scheme saves 90% steam consumption compared to pure steam sootblowing and reduces the risk of tube wall damage.
Principle: Steam sootblowers use high-pressure steam to directly impact accumulated ash; acoustic sootblowers use sound waves to loosen accumulated ash.
Effect: Steam is effective for strongly adhesive and slagging ash, but there are blind spots in cleaning; sound waves cover complex spaces (such as equipment gaps), suitable for loose ash, and less effective for sticky ash.
Equipment impact: Steam may wear and corrode equipment; sound waves are non-contact and cause no mechanical damage.
Maintenance cost: Steam has a complex structure and high consumption (high cost); sound waves have a simple structure and low consumption (low cost).
The acoustic sootblower has a simple structure, and the lifespan of its core vulnerable components (such as diaphragms and electromechanical parts inside the generator) generally lasts for one overhaul period. It requires minimal daily maintenance; aside from inspections and replacements during overhauls, it essentially needs no maintenance, effectively reducing maintenance costs. Steam sootblowers, on the other hand, have a purely mechanical structure and are prone to mechanical failures during operation, requiring regular maintenance (some requiring dedicated personnel from the manufacturer for long-term maintenance). Furthermore, the high-speed steam flow mixed with dust can erode equipment (such as the catalyst surface), shortening its lifespan and significantly increasing maintenance costs compared to the acoustic sootblower. Therefore, the acoustic sootblower typically has a longer lifespan than the steam sootblower.
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