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A muffler column structure of a muffler

A column structure and muffler technology, applied in the field of muffler column structure, can solve problems such as unsatisfactory muffling effect, and achieve the effects of good muffling effect, improved muffling effect and simple structure

Active Publication Date: 2018-01-30
成都普创通信技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing muffler system, including the array type muffler, its muffler columns are arranged in an array, and the existing muffler columns have the disadvantage of unsatisfactory muffler effect

Method used

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  • A muffler column structure of a muffler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 The muffler column structure of a muffler shown includes a shroud, and the shroud is divided into an air inlet shroud 11 and an air outlet shroud 12 by the first partition plate 2, and the air shroud described is A muffler sheet 4 is arranged in the cover 12, a trumpet-shaped air intake tube 5 is arranged in the air intake guide cover 11, the first partition plate 2 closes one end of the air intake tube 5, and the air intake tube 5 One end in contact with the first partition plate 2 is provided with an air flow hole and the other end matches the opening of the air intake shroud 11, the first partition plate 2 is provided with an air flow hole, and the air outlet shroud A sound-absorbing layer 3 is provided on the inner wall of 12 and an inward protrusion is provided on the side wall of the air outlet shroud 12 .

[0019] The other end of the air intake cylinder 5 is matched with the opening of the air intake shroud 11 , that is, the shape of the end of...

Embodiment 2

[0021] Such as figure 1 In order to further enhance the noise reduction effect, the present embodiment optimizes the structure of the noise reduction column of a muffler on the basis of the prior art, that is, the noise reduction sheet 4 is a ring with a circular cross section. , which is coaxial with the air outlet shroud 12 . The sound-absorbing sheet is arranged in an annular shape and is coaxial with the air outlet shroud 12, so that the sound-absorbing effect of each position is uniform.

Embodiment 3

[0023] Such as figure 1 The structure of the muffler column shown in the muffler is optimized on the basis of the prior art in order to enhance the uniformity of the muffler effect everywhere in the shroud, that is, the muffler sheet 4 It is a square ring with a cross section, and its center overlaps with the air outlet shroud 12 .

[0024] Protrusions or / and grooves are provided on the sound-absorbing sheet 4 . 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.

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PUM

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Abstract

The invention discloses a noise eliminating column structure for a noise eliminator. The noise eliminating column structure for the noise eliminator comprises an air guide sleeve. The air guide sleeve is divided into an air inlet guide sleeve and an air outlet guide sleeve by a first spacing board. Noise eliminating sheets are arranged inside the air outlet guide sleeve. An air inlet barrel which is in a trumpet shape is arranged inside the air inlet guide sleeve. One end of the air inlet barrel is closed by the first spacing board. One end, being in contact with the first spacing board, of the air inlet barrel is provided with an air flow through hole. The other end is matched with an opening of the air inlet guide sleeve. The first spacing board is provided with the air flow through hole. The inner wall of the air outlet guide sleeve is provided with a noise eliminating layer. The side wall of the air outlet guide sleeve is provided with an inward protrusion. The noise eliminating effect of the noise eliminating column structure for the noise eliminator is good.

Description

technical field [0001] The invention relates to the field of mufflers, in particular to a muffler column structure of the 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 muffler system includes an array type muffler, and its muffler columns are arranged in an array, and the existing muffler columns have the disadvantage of unsatisfactory muffler effect. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a muffler column structure with good muffler effect. [0004] The technical solution adopted by the present invention to solve the above problems is: [0005] A muffler column structure of a muffler, comprising a s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F13/24
CPCF24F13/24F24F2013/242
Inventor 毛晟竹杨俊郑泽俊
Owner 成都普创通信技术股份有限公司