1, the noise control of air source heat pump project is to give priority to the brands with lower noise in the equipment selection stage.
2. In addition, in the layout of the unit, besides considering the smoothness of exhaust air and avoiding the backflow of exhaust air, damping devices must also be installed at the foundation of the unit and the air inlet and outlet pipes, and the isolation efficiency should meet the design requirements. In the cold and hot station, the main pipeline of air-conditioning water should be provided with shock-absorbing hangers or brackets to prevent the vibration of the unit and water pump from being transmitted to other places through the pipeline.
3. Arrange the air source heat pump host in the main building with small influence area. The entrance and exit from the building to the roof platform where the heat pump is located should be provided with sound insulation doors and sound insulation suites, or auxiliary rooms (such as water pump room and power distribution room) should be provided between the main engine of the air source heat pump and the core tube of the building.
4. Water pump is also the main noise source, and vibration reduction and sound insulation of water pump are equally important. If it is possible to put the pump indoors, it can be rain-proof and sound-proof, and sound-absorbing treatment should be done between the pumps. If the pump is placed outdoors, sticking sound-absorbing materials in the rain cover can effectively reduce noise.
5. Install a large impedance compound muffler on the upper part of the heat pump unit box to reduce the noise of the axial fan.