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1. Noise sound pressure level of central fan
In terms of relevant factors, the noise pressure level of centrifugal fan mainly includes the structure of centrifugal fan and the operating state of centrifugal fan. In addition, its running state is determined by the rated power of the motor and the exhaust air volume. Therefore, the sound pressure level of centrifugal fans with different specifications or different series of products is definitely different. In addition, even if the same model and specification are in different working conditions, the sound pressure level will be different.
In general, the noise control measures for centrifugal fans are to install silencers at the inlet and outlet of centrifugal fans. If the regulations are very high, silencing and sound insulation boxes can also be used. At the same time, shock absorbers can be installed between the blower and the subgrade to achieve good sound insulation and noise reduction.
2. Common classification of work stress
In terms of working pressure, centrifugal fans are commonly classified into the following three categories:
Low voltage centrifugal fan: the working pressure is below 1000Pa.
Medium pressure centrifugal fan: the working pressure is 1000-3000Pa.
High pressure centrifugal fan: the working pressure is above 3000Pa.
3. Difference and application of single inlet and double inlet of centrifugal fan
The single air inlet in the Wholesale exhaust fan means that there is only one air inlet and one vent in the centrifugal fan, so its working pressure is very high, and it can be used in the ash removal workshop and the kitchen lampblack system software. The double air inlet has two air inlets and one vent, so its exhaust air volume is very large, which can be used in places where the air volume is too large.
Features: Low Noise, High Air Volume, High Wind Pressure, Low Energy Consumption, Explosion-Proof, Reasonable Structure.
Material: Impeller Is Processed From Aluminum Alloy.
Application: Chemical, Light Industry, Civil Buildings, Industrial And Mining Enterprises, Workshops And Warehouses "'Places For Summer Cooling, Ventilation, Air Supply, Air Exhaust And Jun Can Be Used.
