How to reduce the noise of central air conditioning

Household central air-conditioning plays a huge role in home cooling and heating. While central air-conditioning brings us a comfortable life, there are also some problems, such as the noise of central air-conditioning. Central air conditioners have much higher power than traditional air conditioners. If they are not handled well, the noise generated by central air conditioners will be very loud and will seriously interfere with people's work and life. How to recognize and reduce the noise generated by central air conditioners is a problem that cannot be ignored.

 Central air-conditioning noise source

 (1) Mechanical noise caused by equipment operation and equipment vibration such as air conditioners and fan coils.

 (2) The flow of chilled moving water in the chilled water pipe produces the sound of water flow and the noise generated by the vibration of the water pipe.

 (3) The noise caused by the frictional vibration of air flowing in the duct.

 (4) The air is ejected from the air outlet to form wind noise.

 (5) Resonances that may be produced by other external noise sources and the above-mentioned noise sources.

 Main noise equipment of central air-conditioning

 (1) Normal ventilation: exhaust fan, blower.

 (2) Air conditioning system: refrigeration unit, circulating water pump, cooling tower, air conditioning terminal (fan coil unit, air handling unit).

Air-conditioning maintenance to reduce the noise of central air-conditioning

Reduce the noise of central air-conditioning method one: adopt a reasonable air-conditioning form to reduce noise.

Method two for reducing central air-conditioning noise: In order to reduce wind and water noise, appropriate wind speed and chilled water velocity should be adopted. The wind velocity of the main air duct should be ≤4m/s, the wind velocity of the branch pipes should be ≤3.5m/s, and the velocity of chilled water should be controlled at 1.5m. /s around.

Method three to reduce central air-conditioning noise: choose suitable low-noise equipment

In addition to rationally designing the airflow organization of the air conditioning system, the selection of advanced quality low-noise equipment, and the control of the flow rate of the air duct and chilled water pipe are also the key to reducing the noise of the air conditioning system. Fresh fan equipment and fan coils are located in public areas, office areas, and rest areas. The noise can be directly transmitted to the crowd. Therefore, products with good quality and low noise must be selected.