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该项目采用旋笛作声波发生器,对低频声波除灰器进行优化设计,研制开发了适合各种场合使用的系列声波除灰系统。低频声波除灰以波长长、振幅大、衰减小以及往复、折射、绕射能力强为特点,能有效地实现全方位的除灰。系统引入了储能稳压、圆弧形收缩加速、正弦半波调制、共振扩张式耦合、局部密封、场共振等先进技术,大大提高了声波辐射效率,除灰效果稳定可靠。其主要技术指标如下:根据不同的锅炉,可降低年平均排烟温度4℃～150℃;提高热交换效率0.25～25％;运行效果稳定可靠、操作维护方便,维修周期长,费用低。
The project uses a whistle as a sound generator to optimize the design of a low-frequency sonic ash shaker, and has developed a series of sonic ash removal systems suitable for various occasions. Low-frequency sound waves to ash with long wavelength, large amplitude, small attenuation and reciprocating, refractive, diffraction ability is strong, can effectively achieve a full range of ash removal. The system introduces such advanced technologies as energy storage and voltage regulation, arc-shaped shrinkage acceleration, half sine wave modulation, resonance expansion coupling, partial sealing, field resonance and the like, which greatly improves the sound radiation efficiency, and the ash removal effect is stable and reliable. Its main technical indicators are as follows: According to different boilers, the annual average exhaust gas temperature can be reduced 4 ℃ ~ 150 ℃; improve the heat exchange efficiency 0.25 ~ 25%;