In the departments of metallurgy, machinery, construction, etc., chillers have been widely used. The air cooler generates strong noise during operation. The noise of the air cooler is transmitted to the surrounding space through the entrance and exit, the casing, the pipeline, etc., which not only damages the physical and mental health of the staff, but also seriously pollutes the environment. Now the air cooler noise has become an important source of noise pollution. In order to improve labor protection and environmental protection, effectively control the extent and extent of the impact of chiller noise on the environment, and develop low-noise chillers to meet the corresponding allowable standards, the noise of the chillers must be treated. Yuyao air cooler, Cixi air cooler

Cooling fan noise source:

When the cooling fan is operated under certain working conditions, the noise generated mainly includes aerodynamic noise and mechanical noise. The aerodynamic noise has the strongest intensity and is the main part of the cooling fan noise.

Overview of air blower noise control measures:

1. The noise of the casing and the motor can be solved by installing an acoustic enclosure. The cooling fan is placed in the independent sound insulation room of the air cooler, and the sound absorption and sound insulation are processed in the air cooler.

2. Install a muffler outside the air vent of the air cooler, and built-in muffler inserts to reduce noise when passing through a specially constructed muffler. The muffler is an effective measure to reduce the radiation of the inlet and exhaust ports of the aerodynamic device or to transmit noise along the pipe.

3, the outer layer of the blinds on the ground floor use as much as possible.

4. The cooling fan is suspended by a damper spring hanger damper.

According to the sound source object, noise characteristics, noise reduction requirements, process conditions and installation location, the design is targeted to ensure good noise reduction and noise reduction.