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How to Reduce the Noise of Air-cooled Chillers?

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How to Reduce the Noise of Air-cooled Chillers?

 

When it comes to air-cooled chillers, in the early stage of production, companies will conduct all-round treatment for air-cooled chillers, so there will be no high noise problem. However, after running for a period of time, the noise of the air-cooled chiller will continue to increase. If it is not dealt with in time, it will have a serious impact on the safe operation of the air-cooled chiller. So how to reduce the noise of the air-cooled chiller?

1. The influence of the surrounding environment. The influence of the noise and vibration of the air-cooled chiller on the surrounding environment is a problem that should be considered in the design. The noise level of the compressor varies with different models and different installation methods. Totally hermetic compressors have lower noise than semi-hermetic compressors. The noise of the axial flow fan is different due to different wings and different speeds. The noise of the eight-pole motor is lower than that of the six-pole motor. Before noise control, before installing equipment and in design, it should be selected flexibly according to the surrounding conditions and noise requirements, and strive to be economical and reasonable. In order to reduce noise and vibration, the air-cooled unit and the water pump are used as the foundation for vibration reduction.

2. The shock absorption device cannot be ignored. In the noise control control of the air-cooled chiller project, in addition to considering the smooth exhaust air and avoiding the backflow of the exhaust air in the layout of the unit, shock absorption devices must be installed at the base of the unit and the inlet and outlet pipes, and the isolation efficiency must meet the design requirements. Shock-absorbing hangers or brackets should be installed in the main pipes of air-conditioning water in cooling and heating stations to prevent the vibration of the unit and the water pump from being transmitted to other places through the pipes.

3. The brand with lower noise is preferred. At present, the noise of a single air-cooled heat pump is generally between 65 and 85db. For each additional unit, the overall noise will increase by 3db. When there are many heat pumps in a project, the noise will be more difficult to control. Therefore, the number of units in the selection of heat pumps should not be too many. In other words, heat pumps should not be used in large-scale air-conditioning projects. Generally, the number of heat pumps in a project should not exceed 5.

How to reduce the noise of the air-cooled chiller will be shared here. The air-cooled chiller can be used in CNC machine tools, coordinate boring machines, grinding machines, machining centers, combined machine tools and various types of precision machine tools. Spindle lubrication and hydraulic system transmission media The cooling can accurately control the oil temperature, effectively reduce the thermal deformation of the machine tool, and improve the machining accuracy of the machine tool.

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