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Impedance type silencing static pressure box

A noise-absorbing static pressure box and impedance-type technology, which is applied in the field of noise reduction, can solve problems such as increased operating costs, influence on noise reduction effects, and high running resistance, and achieve excellent noise reduction effects, good drainage effects, and low running resistance.

Pending Publication Date: 2020-01-21
中建五局安装工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the static pressure box in the prior art is prone to abnormal noises in the static pressure box when the air supply and exhaust system is running, and the running resistance is large, which affects the noise reduction effect and increases the operating cost

Method used

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  • Impedance type silencing static pressure box
  • Impedance type silencing static pressure box
  • Impedance type silencing static pressure box

Examples

Experimental program
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Embodiment 1

[0026] see Figure 1-3 , an impedance type noise-absorbing static pressure box, including a box body 2, at least one guide vane 3 and at least one wind guide vane 6, the box body 2 is provided with an air outlet 4 and an air inlet 5, and a plurality of pieces The air guide vanes 6 are arranged at intervals inside the box body 2 and are located at the air inlet 5, and a plurality of guide vanes 3 are arranged at intervals inside the box body 2 and are located between the air outlet and the air inlet. 3 has an arc-shaped structure and is bent from the air inlet 5 to the air outlet 4. The airflow entering the box body 2 from the air inlet 5 is guided by multiple guide vanes 3 and then flows out through the air outlet 4.

[0027] Preferably, the curvature radii among the plurality of guide vanes are not equal.

[0028] The guide vane 3 includes a guide vane front plate 3.2 and a guide vane back plate 3.1 arranged in the same bending direction, and the guide vane back plate 3.1 is...

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Abstract

The invention provides an impedance type silencing static pressure box. The impedance type silencing static pressure box comprises a box body, at least one flow guide blade and at least one air guidesheet, wherein an air outlet and an air inlet are formed in the box body; the plurality of air guide sheets are arranged in the box body at intervals and are positioned at the air inlet; the pluralityof flow guide blades are arranged in the box body at intervals and are positioned between the air outlet and the air inlet; the flow guide blades are of an arc-shaped structure and are bent from theair inlet to the air outlet; and airflow entering the box body from the air inlet is guided through the plurality of flow guide blades and then flows out from the air outlet. The impedance type silencing static pressure box provided by the invention has the characteristics of simple structure, easiness for manufacturing and low cost, has small operation resistance and effectively reduces energy consumption; and meanwhile, low-frequency, medium-frequency and high-frequency silencing can be realized and the silencing effect is excellent.

Description

technical field [0001] The invention relates to the technical field of noise reduction, in particular to an impedance type noise reduction static pressure box. Background technique [0002] In the building space, static pressure boxes are often used at the outlet of the mechanical air supply and exhaust system, so as to realize the conversion and connection of air supply equipment and air ducts of different diameters, and to achieve the purpose of reducing noise. However, the static pressure box in the prior art is prone to abnormal noises in the static pressure box when the air supply and exhaust system is running, and the running resistance is large, which affects the noise reduction effect and increases the operating cost. [0003] To sum up, there is an urgent need for an impedance-type silencing plenum to solve the problems in the prior art. Contents of the invention [0004] The purpose of the present invention is to provide an impedance type noise-absorbing static ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F13/08F24F13/24
CPCF24F13/08F24F13/24F24F2013/242
Inventor 姚传联凌鑫屈波刘鑫铭张鹏孙喜龙卢毅凌鄢志刚
Owner 中建五局安装工程有限公司
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