Do you know why the acoustic sootblower becomes less effective after being used for a period of time?
Jun 17,2025
The acoustic sootblower mainly encounters the following types of problems during use and their corresponding solutions:
1. Abnormal sound emission (manifested as no sound at all or sharp, piercing noise), usually caused by poor compressed air quality (containing oil, water, impurities), unstable air source pressure, damaged or contaminated diaphragm inside the sound head, or system air leakage. Solutions include checking and purifying the air source, ensuring pressure stability at 0.6-0.8MPa, installing filter pressure regulators on each sootblower air source branch pipe, opening the sound head to clean the interior or replace damaged diaphragms, and checking and tightening air circuit joints.
2. Equipment blockage (such as ash accumulation in conduction section B, section C, or horn section), often caused by uneven flue gas flow field allowing fly ash ingress, or moisture and ash in compressed air causing caking. The solution requires disassembling the relevant sections to clean the ash (externally tapping to loosen caked ash, internally blowing with compressed air), and installing air curtain seals or blowing devices (such as spiral heating blow pipes) in the horn section to prevent fly ash intrusion.
3. Air leakage problems often originate from aging seals (such as packing gland seals) or valve wear (such as lift valves). These can be resolved by adjusting or replacing seals, grinding or replacing valve seats and valve plates. Additionally, electrical and control faults (such as limit switch failure, relay faults, motor overload) require regular inspection of wiring, cleaning or replacing damaged components. If motor overload occurs, check and straighten any bent soot blowing pipes. Regular manual operation to monitor sound (normally a low sound at 75Hz, 147dB) helps early detection of abnormalities.
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