Analyze the principle of how to reduce noise in a closed cooling tower

TIME:2020-08-19 CLICK:
       Closed cooling towers may have relatively loud noises when they are working. Especially for hospitals, large shopping malls and other places where people must gather, noise reduction is more important.
       Let's first understand the principle of noise reduction in the closed cooling tower:
       Its noise transmission mainly has several ways: air, earth, buildings, mainly air transmission. Therefore, a principle of noise reduction is to block the propagation path of sound waves. This can increase the sound barrier around the device. When the sound encounters the barrier, sound reflection occurs. The greater the reflection distance, the sound will be gradually weakened. , The decibel of the reflected sound will be greatly reduced after many times. The barriers required for noise reduction are generally selected according to the construction situation, and the more common ones are brick walls, FRP and aluminum alloys. The surface of the brick wall has a lot of noise, which can reflect the sound at different angles and has a longer service life. The surface of glass fiber reinforced plastic and aluminum alloy is smooth, so it needs to have a specific arc when designing to reflect the sound downward when it is loud.
       In addition to using barriers to reduce noise during use, attention should be paid to reducing noise during the production of closed cooling towers. In the choice of packing, take the positive suspension packing. The fan used is also a low-sound fan selected after comparison with multiple manufacturers. The noise generated by the fan is very low during work. At the same time, we are considering the needs of some specific places, and we will install a noise reduction device according to customer needs. At the same time, the motor used in the equipment is also a high-quality bass motor, which will not produce excessive sound during work. Moreover, the equipment produced will be tested several times before leaving the factory to ensure the quality of the equipment, and also to test the noise value to ensure that there is no problem with each factory product.