Air conditioning system to reduce the noise of several measures
(1) The main consideration is to reduce the source of noise, the selection of air-conditioning equipment should be used in small vibration, low noise products, such as low-noise compressors, motors, fans, pumps, air conditioners, fan coils and so on.
When the air conditioning system in the air volume, the selection of fan pressure head and are coefficients should not be too large, to be when the selection of fans and back to the fan common burden of the total resistance of the system.
(2) in the design of air conditioning duct system duct should minimize resistance, the local resistance of the pipeline should not be too large, try to reduce the number of variable resistance pipe, elbow, three-way, air valve, etc.. The total air volume and resistance of each air supply system should not be too large.
To when the large air volume system into several small air volume system.
(3) Try to reduce the temperature difference between the air supply to reduce the air supply, the air volume is reduced, the fan may also correspondingly reduce the number of numbers, noise reduction.
(4) The wind speed in the duct should be reduced as much as possible within a reasonable range, the wind speed is reduced, the noise will be weakened.
(5) Add anti-vibration measures on the refrigeration and air-conditioning equipment to reduce the noise.
(6) Add muffling facilities, such as mufflers and muffling elbows, in the air duct or at the elbow.
(7) Add muffling materials and absorb noise in the machine room or air conditioner.
(8) Determine the smooth circulation cross-sectional area of the muffler according to the air volume in the duct and the flow rate. (The wind speed through the indoor muffler should not be greater than 5m/s, the wind speed through the muffler elbow should not be greater than 8m/s, and the wind speed through other types of mufflers should not be greater than 10m/s).
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