The invention discloses a noise reduction room for noise reduction of a cabin fan and a ship. The noise reduction chamber comprises a sound insulation structure and a noise reduction structure. The sound insulation structure is laid on the top of the noise reduction chamber and the inner side wall of the noise reduction chamber. The noise reduction structure is located between the installation area and the ventilation area, the noise reduction structure is connected with the sound insulation structure located on the top of the noise reduction chamber and the sound insulation structures located on the two opposite inner side walls of the noise reduction chamber and vertically extends downwards, and the vertical height of the bottom of the noise reduction structure is lower than a horn mouth of a cabin fan. And the noise reduction structure and the sound insulation structure are encircled to form a noise reduction space capable of wrapping the horn mouth. Noise emitted outwards from the horn mouth can be absorbed in the noise reduction space, and noise transmission is reduced. The use of a silencer is eliminated, the construction cost is reduced, and the height rise of the noise reduction chamber is avoided, so that the convenience of cabin layout is improved, the difficulty of layout of other cabins in a ship body caused by the height rise of the noise reduction chamber can be avoided, the design and manufacturing of a ship are facilitated, and the construction cost is reduced.
本发明公开了一种用于机舱风机降噪的减噪室及船舶。减噪室包括隔音结构和减噪结构,隔音结构铺设于减噪室顶部和减噪室内侧壁;减噪结构位于安装区和通风区之间,减噪结构与位于减噪室顶部的隔音结构、以及位于减噪室相对两内侧壁的隔音结构相连接,并竖直向下延伸设置,减噪结构底部的竖直高度低于机舱风机的喇叭口,以使减噪结构和隔音结构围拢形成能包裹喇叭口的减噪空间。使得从喇叭口向外发出的噪声能在减噪空间内被吸收,减少了噪音传播。而且消除了消音器的使用,降低了建造成本,避免减噪室高度升高,从而提高了舱室布局的便捷性,也能避免减噪室高度提高导致对船体内其他舱室的布局带来难度,方便了船舶的设计和制造,并降低了建造成本。
Noise reduction room for noise reduction of engine room fan and ship with noise reduction room
用于机舱风机降噪的减噪室及具有其的船舶
2024-01-12
Patent
Electronic Resource
Chinese
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