An aeroacoustic composite field uniform distribution device and uniform distribution method thereof

A technology of compound field and sound-generating device, which is applied in the combustion method, combustion product treatment, removal of solid residue, etc., can solve the problem that it is difficult to achieve the effect of uniform airflow, the optimal opening ratio and the optimal hole shape are difficult to determine, etc. problem, to achieve the effect of sound energy enhancement, uniform distribution effect improvement, and loss reduction effect

Active Publication Date: 2018-03-23
NANJING CHANGRONG ACOUSTIC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the uniform airflow distribution board generally adopts a single-layer arrangement, and it is difficult to achieve the ideal airflow uniformity effect because the optimum opening ratio and the optimum hole shape are difficult to determine

Method used

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  • An aeroacoustic composite field uniform distribution device and uniform distribution method thereof
  • An aeroacoustic composite field uniform distribution device and uniform distribution method thereof
  • An aeroacoustic composite field uniform distribution device and uniform distribution method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Such as figure 1 As shown, it is the aeroacoustic compound field uniform distribution device according to the present invention, which includes the device entrance 1, the aeroacoustic field distribution space 2, the sound generating device 3, and the device outlet 4, wherein the device inlet 1 is provided with an air intake plate 5 , the outlet 4 of the device is provided with an aeroacoustic deflector 6; the aeroacoustic equal field arrangement space 2 is a space enclosed by the air intake plate 5, the aeroacoustic deflector 6 and the space wall 7 between them; the sounding device 3 Set in the aeroacoustic uniform field layout space 2; the aeroacoustic uniform field layout space 2 is a space that gradually expands from the device inlet 1 to the device outlet 4, and this space can effectively form an aeroacoustic mixing field. When the airflow passes through the device inlet 1 When entering, the sound generating device 3 emits sound waves, which can form a good flow and...

Embodiment 2

[0035] Such as figure 2 As shown, in this embodiment, the cross-section of the aeroacoustic averaging arrangement space 2 along the expanding direction is an isosceles trapezoid, wherein the space wall 7 between the aeroacoustic deflector 6 and the air inlet plate 5 is an isosceles trapezoid in cross section The waist of the air intake plate 5 and the air-acoustic deflector 6 are used as the bottom of the isosceles trapezoid; the corresponding side length ratio of the section formed by the air-acoustic deflector 6, the air intake plate 5 and the space wall 7 is 0.95-1.1:0.75 -0.85: 0.6-0.65. The air intake plate 5 is composed of two or more layers of plates, each of which has uniformly distributed holes, and there is a gap between adjacent two layers of plates, and the holes on adjacent two layers of plates are arranged in a dislocation . The aeroacoustic deflector 6 is provided with uniformly arranged holes.

[0036] The working process of the above device is as follows: ...

Embodiment 3

[0042] Such as image 3 As shown, the sound generating device 3 includes an acoustic conduit 8, an acoustic generator 9 and an air pipeline 10, wherein the acoustic conduit 8, the acoustic generator 9 and the air pipeline 10 are connected in sequence, and the air pipeline 10 is used to transport the sound of the acoustic generator 9. The working gas; the sounding direction of the sound conduit 8 faces the aeroacoustic deflector 6; the sounding frequency band and the sounding process of the sound generator 9 are controlled by the control system. Four sets of sounding devices 3 are provided. In actual use, high-frequency, intermediate-frequency or low-frequency sounding devices can be set according to different use needs, and sounding devices of different frequency bands can also be used in combination to improve work efficiency and work effect.

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Abstract

The invention discloses an aeroacoustic composite field uniform distribution device and a uniform distribution method thereof. The uniform distribution device includes a device inlet, an aeroacoustic field distribution space, a sounding device, and a device outlet, wherein an air intake plate is arranged at the device inlet, and the device There is an aeroacoustic deflector at the exit; the aeroacoustic average layout space is the space enclosed by the air intake plate, the aeroacoustic deflector and the space wall between them; the sounding device is set in the aeroacoustic average layout space . The invention realizes the uniform distribution of an aeroacoustic composite material energy flow field, and can promote the improvement of the uniform distribution degree of the composite flow field through the interaction between different material energy fields. The device of the invention has a compact structure, and the method is simple to implement, and can realize the uniform arrangement of the aeroacoustic composite field in the true sense, which is of great significance for energy saving and environmental protection, and has popularization value.

Description

technical field [0001] The invention relates to an aeroacoustic composite field uniform distribution device and a uniform distribution method thereof, which are used in related fields such as ash removal of coal-fired boilers in industries such as electric power and metallurgy. Background technique [0002] Both sound waves and gas are a kind of energy, and the uniform arrangement of the gas-acoustic composite field plays an important role in the ash removal of coal-fired boilers, which is of great significance for energy saving and environmental protection. [0003] In the prior art, uniform airflow distribution can be achieved to a certain extent by providing an airflow uniform distribution plate with a certain perforation rate. However, the uniform airflow distribution plate generally adopts a single-layer arrangement, because it is difficult to determine the optimum opening ratio and the optimum hole shape, so it is difficult to achieve the ideal airflow uniformity effec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23J1/00F23J3/00
Inventor 张荣初邹怡然孙卫国夏瑞芳朱双双金哲超于志成
Owner NANJING CHANGRONG ACOUSTIC INC
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