Air-cooled heat pump noise management methods are generally four: acoustic enclosure, isolation of the compressor, vibration isolation of the pipeline, pipeline through the wall using hard links.
Air-cooled heat pump units are generally used in office buildings, shopping malls, hospitals, hotels and other places in the occasions, these air-cooled heat pump units in the work will produce a huge noise.
Air-cooled heat pump unit noise sources: heat pump unit on the upper part of the axial fan, the compressor below the unit, and pump equipment. The following four points can reduce the noise.
1, the use of acoustic enclosure, the air-cooled heat pump unit acoustic closed, blocking the spread of noise. In addition, the use of sound-absorbing materials within the acoustic enclosure to reduce the number of radiation and reverberation impacts within the enclosure to reduce the noise intensity.
2, the compressor as the main noise equipment, without affecting the operation of the compressor sound insulation treatment, is conducive to improving the overall noise reduction effect.
3, pipeline vibration isolation treatment, it is recommended that the use of rubber soft connection, soft connection selection of vibration isolation performance is higher, longer length and corrosion-resistant professional vibration isolation products. Pipe stent to do vibration damping treatment, need to do a good job in the stent below the vibration damping treatment, can effectively prevent the spread of vibration energy to the building structure.
4, most of the pipeline through the wall using hard links, pipe vibration noise generated by a significant portion of the transmission to the building structure, so the pipeline and the wall should be disengaged from the processing, to stop the transmission of noise.