紧凑型渔船机舱通风机降噪装置的研制

摘要

In order to lower noise coming from ventilator in fishing ship cabin, compact lowering ventilator noise equipment was developed by means of absorb sound and lowering noise principle.Simulation and noise test have been done in laboratory, and the result was that ventilator noise was from 107 dB (A) down to 77 dB (A).A better result of lowering noise and absorbing sound was achieved.The equipment has these features of small size, simple structure, easy installation, low manufacture cost and so on.It provided a new method to lower working noise of ventilator in fishing ship cabin.%为降低渔船机舱通风机产生的噪声,根据吸声降噪原理,研制了紧凑型渔船通风机吸声降噪装置.通过在实验室模拟使用和噪声测试,结果显示,通风机噪声从原来的107 dB(A)降低到77 dB(A),降噪效果良好;所设计的降噪装置具有尺寸小、结构简单、安装方便、制造成本低等特点.该装置的研制对降低渔船机舱内通风机工作噪声提供了一种新的方法.