Flow field optimization and energy saving based on antinoise fan pipes 

Abstract

Abstract:

The vertical blast pipe has certain flow field design defect which results in the increase of draft loss. However, the muffler installed to reduce the noise accelerates the power consumption of fan. Improved design of fan pipes combines antinoise and flow field optimization, which makes pipe itself has a certain muffling performance. The energy saving of fan is achieved by improving the flow field of the pipe and reducing the draft loss. Numerical analysis and demonstration project application show that after the antinoise and flow field optimization of the fan pipe, the muffling energysaving pipe can achieve the muffling effect as ordinary mufflers，and increase the efficiency of the fan by more than 10%. This pipe has the advantages of simple structure，good environmental adaptability，low maintenance cost，excellent application and promotion prospects.

Key words:

">">fan pipe；anti">">noise；flow field optimization；energy saving

LI Xiaofei1，ZHANG Zan1，XIE Jiankun2，WEN Xiaoming2，LIU Yuqing2.

Flow field optimization and energy saving based on antinoise fan pipes 

[J]. Huadian Technology, 2019, 41(1): 27-31.

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Flow field optimization and energy saving based on antinoise fan pipes 

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