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Muffling structure of fan filter muffler

A technology of fan filter and muffler, which is applied in the field of fan filter muffler noise reduction structure, improved structure, and fan filter muffler noise reduction device. Improved sound effect, compact structure, and reduced thickness of the sound-absorbing layer

Inactive Publication Date: 2012-10-10
WUXI GL TUBRO COMPRESSOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the thickness of the sound-absorbing material layer of the sound-absorbing sheet is relatively thick, the number of sound-absorbing sheets that can be installed is limited, so that the sound-absorbing effect cannot meet the relevant requirements

Method used

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  • Muffling structure of fan filter muffler

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Effect test

Embodiment Construction

[0011] Below the present invention will be further described in conjunction with the embodiment in the accompanying drawing:

[0012] Such as figure 1 Shown: this filtering muffler comprises parts such as air filtering device 1, muffler device 2.

[0013] The present invention comprises shell plate 3, shell sound-absorbing layer 4, shell perforated plate 5, middle sound-absorbing sheet 6 and other components. The shell sound-absorbing layer 4, the shell perforated plate 5 and several middle sound-absorbing sheets 6 are all arranged on the shell plate 3, and the middle sound-absorbing sheet 6 is covered by the middle perforated plate 6-1 covering the middle sound-absorbing layer 6- 2 components; several middle mufflers 6 are evenly arranged along the normal direction of the air flow channel, and the distance between adjacent middle mufflers 6 and the distance between the middle muffler 6 and the shell perforated plate are equal (both are X), and X is is the width of the air c...

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Abstract

The invention relates to a muffling structure of a fan filter muffler, which comprises an outer shell plate, an outer shell sound-absorbing layer, an outer shell through hole plate and middle muffling pieces; the outer shell sound-absorbing layer, the outer shell through hole plate and a plurality of middle muffling pieces are arranged on the outer shell plate, and each middle muffling piece is formed by coating a middle sound-absorbing layer with a middle through hole plate; the middle muffling pieces are uniformly distributed along the normal direction of an air channel, the spacing between adjacent middle muffling pieces is equal to that between the middle muffling pieces and the outer shell through hole plate, and the thicknesses of the outer shell sound-absorbing layer and the middle sound-absorbing layer are equal. According to the muffling structure of the fan filter muffler, the structure is compact and reasonable; the thicknesses of the sound-absorbing layers are reduced, the number of the sound-absorbing layers is increased, and the spacing between the sound-absorbing layers is reasonable, so that a muffling effect is significantly improved, and the noise is enabled to meet the environmental protection standard.

Description

technical field [0001] The invention relates to a noise reduction structure of a fan filter muffler, in particular to an improved structure of a fan filter muffler noise reduction device, and belongs to the technical field of mechanical structures. Background technique [0002] In the existing technology, a filter muffler is often used in front of the air inlet of the high-speed centrifugal fan. The muffler muffler device is composed of several mufflers, and each muffler is evenly arranged along the normal direction of the air flow channel. Because the thickness of the sound-absorbing material layer of the sound-absorbing sheet is relatively thick, the number of sound-absorbing sheets that can be installed is limited, so that the sound-absorbing effect cannot meet the relevant requirements. Contents of the invention [0003] The object of the present invention is to overcome the above disadvantages, so as to provide a filter muffler noise reduction structure, which has goo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/66F04D29/70
Inventor 金华明金炳庆
Owner WUXI GL TUBRO COMPRESSOR
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