Array muffler

An array type, muffler technology, applied in the direction of sound-generating devices, instruments, etc., can solve problems such as unsatisfactory muffler effect, achieve uniform muffler effect, improve muffler effect, and increase the effect of contact area

Active Publication Date: 2015-09-30
重庆点源机械配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing silencing system has the disadvantage of unsatisfactory silencing effect

Method used

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  • Array muffler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Such as figure 1 The array muffler shown includes a frame and a muffler column arranged in the frame, the muffler column is arranged in an array, and the muffler column includes a shroud, which is characterized in that: The air guide cover is separated into an air intake guide cover 11 and an air outlet guide cover 12 by the first partition plate 2, and the air intake tube 5 in the shape of a trumpet is arranged in the described air intake guide cover 11, and the diameter The smaller end is provided with an air flow hole, the first partition plate 2 is provided with an air flow hole, the inner wall of the air outlet hood 12 is provided with a sound-absorbing layer 3 and the air outlet hood 12 The side wall is provided with an inward protrusion, and the air outlet baffle 12 is provided with a muffler 4 , and the muffler 4 is circular and coaxial with the air outlet baffle 12 .

[0018] The larger diameter end of the air intake tube 5 matches the opening of the air intak...

Embodiment 2

[0020] Such as figure 1 For the array type muffler shown, in order to further enhance the muffler effect, this embodiment is optimized on the basis of the prior art, that is, the muffler sheet 4 is provided with protrusions or / and grooves. Provide protrusions on the sound-absorbing sheet or set the cross-section of the sound-absorbing sheet in a wavy shape, effectively increasing the contact area between the sound-absorbing sheet and the wind, and enhancing the sound-absorbing effect.

[0021] The more the number of sound-absorbing sheets, the better the sound-absorbing effect, so the sound-absorbing sheets 4 are set to a plurality, and in order to make the effects everywhere in the air outlet shroud 12 uniform, the diameters of the plurality of sound-absorbing sheets are different but all the same. axis.

Embodiment 3

[0023] Such as figure 1 The array type muffler shown is optimized on the basis of the above-mentioned embodiment in order to further improve the noise reduction effect, that is, the second partition plate 6 is arranged outside the air intake cylinder 5, and the The second partition plate 6 is located below the air flow hole of the air intake tube 5 . The second partition plate 6 is used to block the noise from flowing to the opening of the air intake shroud 11 .

[0024] In order to further improve the sound-absorbing effect, a sound-absorbing layer is arranged above the second partition plate 6 .

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PUM

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Abstract

The invention discloses an array muffler. The array muffler comprises a framework and muffling columns arranged in the framework in array, wherein each muffling column comprises a flow guide cover, each flow guide cover is separated into an air inlet flow guide cover and an air outlet flow guide cover by a first partition board, a horn-shaped air inlet cylinder is arranged in each air inlet flow guide cover, the end, with a larger diameter, of each air inlet cylinder is matched with an opening of the corresponding air inlet flow guide cover, an air flow through hole is formed in the end, with a smaller diameter, of each air inlet cylinder, air flow through holes are formed in the first partition board, a muffling layer is arranged on the inner wall of the air outlet flow guide cover, inward bulges are arranged on the side wall of the air outlet flow guide cover, and circular muffling pieces are arranged in the air outlet flow guide cover and coaxial with the air outlet flow guide cover. The array muffler has a good muffling effect.

Description

technical field [0001] The invention relates to the field of mufflers, in particular to an array muffler. Background technique [0002] Mufflers are installed in large air volume systems such as gas turbines, aero-engine test benches, mines, tunnels, subways, and building air ducts. Array mufflers are generally installed at the inlet and outlet of ventilation systems such as subways to eliminate the noise generated by gas flow. The existing silencing system has the disadvantage of unsatisfactory silencing effect. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides an array type muffler, which has good noise reduction effect. [0004] The technical solution adopted by the present invention to solve the above problems is: [0005] An array muffler, comprising a frame and a muffler column arranged in the frame, the muffler columns are arranged in an array, the muffler column includes a shroud, and the shro...

Claims

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Application Information

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IPC IPC(8): G10K11/16
Inventor 毛晟竹杨俊郑泽俊
Owner 重庆点源机械配件有限公司
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