How to optimize the performance of centrifugal fans
About centrifugal fans:
How to optimize the performance of centrifugal fans?
The new type of centrifugal fan simulates production, and based on experiments, it is found through research that the maximum entropy generation in the impeller and turbulence dissipation is the main source of entropy generation fans. The entropy generation is almost negligible due to viscous dissipation, and optimization theory is adopted. Optimize the impeller parameters, analyze the entropy production and dynamic characteristics of the fans before and after the optimization. The experimental results of the centrifugal fan prove that after the optimization of the impeller and volute entropy, the generation fluidity is reduced to improve all the pressure increases in the efficiency area of ??the centrifugal fan.
Since the increase is larger, the total pressure is close to the highest efficiency point of the drive power plant, and its energy efficiency structural parameters are optimized. Based on the finite volume method, a complete three-dimensional numerical simulation of the flow field is performed, and the new software of the centrifugal fan is used. The experimental results prove that the low-energy fluid flows in the axial direction of the volute, close to the static and dynamic pressure in the minimum negative pressure surface of the drive blade and the impeller inlet, and the dynamic pressure of the rotating road leaves the convex profile distribution.
At present, the efficiency and noise test for centrifugal fans is carried out on different inlet fans with axial deflectors and simple baffle air inlet boxes. The performance test shows that the first type of air inlet of the box-shaped structure is more reasonable. , Better aerodynamic performance, with the fan inlet slot, the use of two adjustable deflectors can play a role to adjust the energy and the axial deflector has better adjustment performance, the test results prove , The noise level noise fan A with increased efficiency and increased and the opening of the deflector decreased.
By smoothing the edge wavelet harmonic spectrum, the attenuation characteristics are improved in the time-domain harmonic wavelet algorithm, and it is provided to realize the experimental study of the rotating stall of the centrifugal fan, the different parts of the profile of the signal dynamic pressure measurement, and the improved time-frequency wavelet Analyzing the harmonic frequency, in the opening degree obtained by different deflectors of several centrifugal fans, the phenomenon of energy intermittently stops weakly.
Where to buy centrifugal fan?
AFL Fan Equipment Factory is a leading China centrifugal fan supplier and axial fan manufacturer. We have our own production workshop and design team. If you cooperate with us, we can provide you with first-hand prices.
Welcome to choose AFL Fan Equipment Factory - a leading China centrifugal fan supplier and axial fan manufacturer.