摘要
针对矿用气动油泵的气动马达排气口噪声危害工人身体健康的问题,根据节流降压和小孔喷注原理,设计了复合式小孔消声器。经过在气动油泵上试验表明,该消声器将排气噪声从 110.00 dB 降到 79.30 dB,符合实际应用要求及环保设计标准。
Since the exhaust noise from the pneumatic motor of mine pneumatic oil pump endangers the health of workers,a composite small-hole muffler was designed according to the principle of throttling and pressure reduction as well as orificing jet.The application test on the pneumatic oil pump showed the muffler reduced the exhaust noise from 110.00 dB to 79.30 dB,which met the actual application requirement and environmental protection standard.
作者
高兴元
杨秋英
GAO Xingyuan;YANG Qiuying(BeiHang University,Beijing 100191,China;Capital Medical University,Beijing 100069,China)
出处
《矿山机械》
2021年第3期48-50,共3页
Mining & Processing Equipment
关键词
复合式小孔消声器
节流降压
小孔喷注
气动马达
composite small-hole muffler
throttling and pressure reduction
orificing jet
pneumatic motor
