A Fan Muffling Device and Its Application to the Transformer Cooler Fan
A sound-absorbing device and silencer technology, which is applied to machines/engines, components of pumping devices for elastic fluids, mechanical equipment, etc., can solve problems such as inconvenient installation and use, pollution, and poor noise reduction effects, and achieve guaranteed strength , increase the sound absorption frequency band, and eliminate the effect of airflow noise
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[0026] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can understand the present invention more clearly, but the protection scope of the present invention is not limited thereby.
[0027] as attached figure 1 To attach image 3 As shown, the silencing device for transformer cooler fan of the present invention has a cylindrical structure as a whole, including a silencing air cylinder, a first silencing space split 4 arranged in the silencing air cylinder, and a first silencing space split 4 arranged in the first silencing space. The second sound-absorbing space 5, the first sound-absorbing space 4 and the second sound-absorbing space 5 are all filled with sound-absorbing structures 6, and the second sound-absorbing space 5 is connected to the first sound-absorbing space 4 through an inner support frame 13 The first silencing space 4 is connected to the silencing ...
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