声屏障是在不封闭噪声源的条件下实现噪声控制的手段。 在噪声控制工程中,对于来自设备的非管路噪声,通常采用的控制方法为:用隔声罩将声源封闭,设置隔声室隔离声源,或者在车间内部进行吸声处理等,以改善室内工作环境。但是,对于体积庞大的噪声源,对于泄出易燃气体而要求防爆的设备,或者对 Sound barrier is a means of noise control without blocking the noise source. In the noise control project, for the non-pipeline noise from the equipment, the commonly used control methods are as follows: enclosing the sound source with an acoustic enclosure, isolating the sound source room with a sound source, or performing sound absorption treatment in the workshop, etc. Improve indoor work environment. However, for bulky sources of noise, equipment that requires explosion-proof for the escape of flammable gases, or