本发明公开了一种列车风道减振降噪装置和空调通风系统,其中一种列车风道减振降噪装置设于列车风道内,所述列车风道包括两端长边弯曲的上盖和与上盖的两端长边相连的底板,所述底板和上盖之间围设形成长条形空腔一,所述底板上贯通设置有若干个与长条形空腔一连通的出风道。有益效果:本申请的技术方案通过在风道内敷设微穿孔板对风道噪音进行吸收,从而实现降噪的目的,列车风道噪音下降后,振动随之下降,以此实现列车风道减振降噪,本申请的技术方案通过在微穿孔板内敷设滤网,滤去风道内气流中的灰尘,防止灰尘吸附于微穿孔板堵塞吸音微孔造成微穿孔板减振降噪性能下降,有效延长了微穿孔板的使用寿命,无需定期更换微穿孔板,成本低。
The invention discloses a train air duct vibration and noise reduction device and an air conditioner ventilation system.The train air duct vibration and noise reduction device is arranged in a train air duct, the train air duct comprises an upper cover with the two long sides bent and a bottom plate connected with the long sides of the two ends of the upper cover, and a first long-strip-shaped cavity is defined between the bottom plate and the upper cover; a plurality of air outlet channels communicating with the first long-strip-shaped cavity are formed in the bottom plate in a penetrating mode. The train air duct noise reduction device has the beneficial effects that according to the technical scheme, the noise of the air duct is absorbed by laying the micro-perforated plate in the air duct, so that the purpose of noise reduction is achieved, after the noise of the train air duct is lowered, vibration is lowered, and therefore vibration reduction and noise reduction of the train air duct are achieved; dust in airflow in the air channel is filtered out, the situation that the vibration and noise reduction performance of the micro-perforated plate is reduced due to the fact that the dust is adsorbed to the micro-perforated plate and blocks sound absorption micropores is prevented, the service life of the micro-perforated plate is effectively prolonged, the micro-perforated plate does not need to be replaced regularly, and cost is low.
列车风道减振降噪装置和空调通风系统
2024-06-18
Patent
Elektronische Ressource
Chinesisch