In a giant building, the air conditioning in the hall is provided by a 6FWB unit fixed in the basement. The vibration of the unit passes through the bridge connecting the pipe and is transmitted to the ground hall, with a noise value of 45dB. In such an environment, people always feel a sense of discomfort. After the design is improved, the metal hose is connected in series on the connecting pipe, which not only absorbs some of the noise generated by the vibration of the unit, but also the noise generated by the fluid pulsation in the pipe system is absorbed. At this time, the noise in the ground hall The value is only 33dB, which greatly improves the environment inside the hall.
