Shell of low noise axial flow fan

The utility model discloses a shell of a low noise axial flow fan, and belongs to the technical field of turbine noise reduction. The shell of the low noise axial flow fan is composed of a shell inner layer, inner layer sound absorption plaster materials, a metal foam aluminum plate, outer layer sou...

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Bibliographic Details
Main Authors LI CHUNXI, YIN PAN, YE XUEMIN, LI XINYING
Format Patent
LanguageChinese
English
Published 10.07.2013
Subjects
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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Summary:The utility model discloses a shell of a low noise axial flow fan, and belongs to the technical field of turbine noise reduction. The shell of the low noise axial flow fan is composed of a shell inner layer, inner layer sound absorption plaster materials, a metal foam aluminum plate, outer layer sound absorption plaster materials and a shell outer layer in a composite mode, wherein the shell inner layer, the inner layer sound absorption plaster materials, the metal foam aluminum plate, the outer layer sound absorption plaster materials and the shell outer layer are sequentially arranged from the inner layer of the shell to the outer layer of the shell. The shell of the low noise axial flow fan has the advantages of the metal foam aluminum plate which is light in weight, capable of reducing cavity noise, high-temperature resistant and recoverable, and is high in rigidity and low in manufacturing cost and installation coast. A noise reduction value of the fan is about 18dB. The shell of the low noise axial flow
Bibliography:Application Number: CN2013204718U