CN213815532U

CN213815532U - Noise eliminator for air intake in windward

Info

Publication number: CN213815532U
Application number: CN202022784383.XU
Authority: CN
Inventors: 朱金晏; 王松伟; 何晨岗
Original assignee: Jiangsu Winstar Tech Co ltd
Current assignee: Jiangsu Winstar Tech Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-07-27
Anticipated expiration: 2030-11-26

Abstract

The utility model provides a noise eliminator that upwind was admitted air, includes that a plurality of groups are perpendicular to be arranged side by side's noise elimination row, the noise elimination arrange and be equipped with a plurality of evenly distributed's exhaust noise elimination piece, exhaust noise elimination piece include frame, orifice plate and down draught plate, the frame inside be equipped with the sound absorption cotton, both sides all are equipped with the orifice plate around the frame, the orifice plate cover the sound absorption cotton completely, the frame upper end link to each other with the down draught plate. The utility model discloses from the angle of windward noise elimination, will blow to the wind cutting of noise elimination row through the exhaust noise elimination piece and open, increased wind and the cotton area of contact of sound absorption in the exhaust noise elimination piece, improved noise eliminator's noise cancelling effect.

Description

Noise eliminator for air intake in windward

Technical Field

The utility model belongs to the technical field of the muffler, concretely relates to noise eliminator that windward admits air.

Background

The perforated plate silencer is a novel silencer made of a perforated plate sound absorption structure, and has wide application in the technical field of silencing. The perforated plate silencer is made of a perforated metal sheet, common perforated plates can be made of materials such as steel plates, stainless steel plates and alloy plates, and porous rock wool materials can be filled in an air layer behind the perforated plates, so that the aims of noise reduction and silencing are further fulfilled by utilizing the resistive sound absorption principle of sound absorption materials. The high-sound-absorption-coefficient high-pressure-loss-rate air flow regeneration device has the characteristics of high sound absorption coefficient, wide absorption frequency band, small pressure loss, low air flow regeneration noise, easiness in control and the like, so that the high-sound-absorption-coefficient high-pressure-loss-rate air flow regeneration device is widely applied to processing environments with high air flow velocity and strict environmental requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a noise eliminator of upwind air intake, including a plurality of groups of perpendicular noise elimination row that places side by side, the noise elimination row on be equipped with a plurality of evenly distributed's exhaust noise elimination piece, be equipped with the ventilation clearance between two adjacent exhaust noise elimination pieces, the position of the exhaust noise elimination piece that lies in on the noise elimination row of lower floor in two adjacent groups of noise elimination rows corresponds with the position of the ventilation clearance that lies in on the noise elimination row of upper strata; the exhaust silencing piece comprises a frame, a pore plate and an air reversing plate, sound absorption cotton is arranged inside the frame, the pore plate is arranged on the front side and the rear side of the frame, the pore plate completely covers the sound absorption cotton, and the upper end of the frame is connected with the air reversing plate.

Preferably, the exhaust silencing sheets are symmetrically arranged on the silencing row.

Preferably, the frame is provided with reinforcing members on both left and right sides thereof.

In order to avoid the phenomenon that the sound absorption cotton flows out of the orifice plate, the sound absorption cotton is preferably wrapped by glass fiber cloth.

In order to improve the fireproof performance of the orifice plate, preferably, fireproof fiber cloth is attached to the inner surface of the orifice plate, and the periphery of the orifice plate is connected with the frame in a spot welding mode.

Preferably, the down draught plate is a triangular strip and is connected with the upper end of the frame in a spot welding mode.

Has the advantages that: the utility model discloses a noise eliminator that windward admits air compares in current noise eliminator, the utility model discloses from the angle of windward noise elimination, will blow to the wind stream of noise elimination row through the exhaust noise elimination piece and cut into many, increased the cotton area of contact of sound absorption in wind stream and the exhaust noise elimination piece, improved noise eliminator's noise cancelling effect.

Drawings

FIG. 1 is a schematic view of the structure of a muffler device for intake of air into the wind;

FIG. 2 is a side view of the muffler assembly intake into the wind;

FIG. 3 is a schematic view of the structure of the exhaust muffler plate of FIG. 2;

in the figure: 1. the sound-absorbing row 11, the sound-absorbing row 12 on the upper layer, the sound-absorbing row 2 on the lower layer, the exhaust sound-absorbing sheet 21, the frame 211, the sound-absorbing cotton 22, the pore plate 23, the down draft plate 24 and the reinforcement

Detailed Description

In order to deepen the understanding of the present invention, the present invention is described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.

As shown in fig. 1, 2 and 3, a muffler device for intake air from windward comprises a plurality of groups of muffler rows 1 vertically arranged in parallel, wherein the muffler rows 1 are provided with a plurality of exhaust muffler sheets 2 which are bilaterally symmetrical and uniformly distributed, a ventilation gap is arranged between two adjacent exhaust muffler sheets 2, and the positions of the exhaust muffler sheets on the lower muffler row 12 in the two adjacent groups of muffler rows correspond to the positions of the ventilation gaps on the upper muffler row 11 in the upper muffler row; exhaust muffler piece 2 include frame 21, orifice plate 22 and down draught plate 23, the left and right sides of frame 21 all is equipped with reinforcement 24, and frame 21's inside is equipped with sound absorption cotton 211, in order to avoid sound absorption cotton 211 to follow the emergence of orifice plate 22 department outflow phenomenon, wraps up with glass fiber cloth around sound absorption cotton 211, and frame 21's front and back both sides all are equipped with orifice plate 22, orifice plate 22 cover sound absorption cotton 211 completely, the internal surface of orifice plate 22 pastes fire prevention fiber cloth to orifice plate 22 all around with frame 21 spot welding be connected, down draught plate 23 be the triangle strip, down draught plate 23 and frame 21 upper end spot welding are connected.

The utility model discloses from the angle of windward noise elimination, will blow through exhaust noise elimination piece 2 and cut into the lot to the wind stream of noise elimination row 1, increased the wind stream and the cotton 211's of the interior sound absorption area of exhaust noise elimination piece 2, improved noise eliminator's noise cancelling effect.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A silencing device for air intake facing the wind comprises a plurality of groups of silencing rows which are vertically arranged in parallel, and is characterized in that the silencing rows are provided with a plurality of uniformly distributed exhaust silencing pieces, a ventilation gap is arranged between every two adjacent exhaust silencing pieces, and the positions of the exhaust silencing pieces on the silencing row at the lower layer in the two adjacent groups of silencing rows correspond to the positions of the ventilation gaps on the silencing row at the upper layer; the exhaust silencing piece comprises a frame, a pore plate and an air reversing plate, sound absorption cotton is arranged inside the frame, the pore plate is arranged on the front side and the rear side of the frame, the pore plate completely covers the sound absorption cotton, and the upper end of the frame is connected with the air reversing plate.

2. The device as claimed in claim 1, wherein the exhaust silencing sheet is placed on the silencing row symmetrically.

3. A device according to claim 1, wherein the frame is provided with reinforcing members on both left and right sides.

4. The device of claim 1, wherein the sound-absorbing cotton is wrapped with fiberglass cloth.

5. The device of claim 1, wherein the inner surface of the perforated plate is adhered with fire-proof fiber cloth, and the periphery of the perforated plate is connected with the frame by spot welding.

6. The device of claim 1, wherein the inverted wind plate is a triangular bar, and the inverted wind plate is connected with the upper end of the frame by spot welding.