【中文】由喇叭口、消声器、整流体、风机段及电机组成。双向型反风率达正向流量99%；250℃下15min可换向4次；叶片为铝硅合金精密铸造可调机翼型；钢结构热镀锌，280℃下60min不冒烟、不释放毒气；10m处噪声＜70dB(A)；火灾时280℃可持续运行60min。
【English】Composed of bell mouth, silencer, fairing, fan section, and motor. Bidirectional type achieves reverse flow equal to 99% of forward flow; direction change four times within 15min at 250°C; blades are adjustable airfoil type precision-cast from aluminum-silicon alloy; hot-dip galvanized steel structures withstand 280°C for 60min without smoke or toxic gas release; noise <70dB(A) at 10m; continuous operation for 60min at 280°C during tunnel fire.
四川运成风机制造有限公司成立于2005年，2017年迁至德阳罗江，注册资金5000万元，占地55亩，员工86人。专业生产隧道施工风机和射…
