Reduce noise, fan environmental protection

2024-08-31 20:01:12

Noise includes atmospheric dynamic noise atmosphere dynamic noise, mechanical noise, electromagnetic noise, and structural noise.

Atmospheric dynamic noise is due to the unsteady flow of gas. Noise generated by gas and gas and gas and object infection. From the mechanism of noise generation, that is, the disturbance of the airflow. It is mainly composed of rotating noise (pneumatic pulsation) and eddy current noise (turbulent noise). The atmospheric dynamic noise of the fan is the effect of changing the noise and eddy current noise; the mechanical noise is mainly radiated to the surrounding through the casing of the fan ; the electromagnetic noise of the motor is in low contrast with the dynamic noise and mechanical noise of the atmosphere.

Advancing gas pressure and delivering gas as a driven fluid machine. It can be made into two types of right-handed and left-handed, and the centrifugal fan is based on the mechanical energy of the output. The mission principle is basically the same as the turbine shortening machine, except that the gas flow rate is low and the pressure does not change much. The individual does not need to consider the change of the gas specific volume, that is, the gas is treated as a non-shortening fluid. The air volume of the newly installed centrifugal fan will be too large. When the fan is officially opened after the new installation, or if the operation is too large or too small, it can be cancelled by one of the following modes: change the speed of the fan to regulate the flow. Control the flow rate of the opening and closing of the control door. Change the pipe network resistance coefficient to regulate the flow. Change the pressure of the higher or lower fan to regulate the flow.

Changing the noise is when the mission wheel rotates. The vane on the wheel strikes the gaseous medium at a certain point in a given space for a pressure pulsation of the gas at the location. Whenever the blade passes, the pressure of the gas that hits the particle will fluctuate once and quickly, and changing the blade continuously and one by one will continuously generate pressure pulsation, causing a large unevenness of the airflow, thereby radiating noise everywhere.

YT-S350

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