CN210667772U

CN210667772U - Matrix type silencer

Info

Publication number: CN210667772U
Application number: CN201921385431.9U
Authority: CN
Inventors: 许伟清; 文永辉; 冯颖
Original assignee: Wuxi Taiheng Environmental Protection Technology Co Ltd
Current assignee: Shaanxi Guchuan Environmental Technology Development Co.,Ltd.
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-06-02
Anticipated expiration: 2029-08-23

Abstract

The utility model provides a matrix silencer, including noise elimination cell cube and linking bridge, noise elimination cell cube both ends set up the water conservancy diversion head respectively, and a plurality of noise elimination cell cubes are array and arrange to through water conservancy diversion head bolted fixation in connecting standard spare, it is fixed through the linking bridge of perpendicular installation between a plurality of connecting standard spare, its characterized in that: the silencing unit is internally composed of a multi-section silencing body, a plurality of silencing bodies are distributed in a staggered manner in the vertical direction, and cross points are formed among through holes between adjacent surfaces of adjacent silencing bodies; the flow guide head is provided with a micropore unit. The utility model utilizes the turbulent flow to enhance the sound absorption effect; the sound absorption is not limited to entering from the flow guide side, so that the sound absorption efficiency is improved; the transportation and the carrying are convenient; the transportation and installation of the subway in a narrow space are facilitated; the problem that the traditional sheet type silencer is difficult to match with structures such as civil engineering air ducts and the like is effectively solved; the problem of production and installation difficulty caused by large errors between the actual size of a civil engineering structure and the drawing marking size is solved.

Description

Matrix type silencer

Technical Field

The utility model relates to a silencer field especially relates to a matrix silencer.

Background

At present, fan silencers and air duct silencers in urban subways and highway tunnels are assembled by using 2 m by 2 m or so sheet-type silencing sheets, so that the products are large in size and are not beneficial to transportation and large-scale production; and the transportation and the installation are not facilitated in the narrow space of the subway.

The problems of the existing products are as follows: the sheet type silencing sheet has large product size, and is not beneficial to transportation and large-scale production; is not beneficial to carrying and installing in the narrow space of the subway.

Published chinese utility model patent, application No. CN201621073344.6, patent name: array muffler, application date: 2016-09-22, the utility model relates to an array silencer, including a plurality of noise elimination unit and bracing piece, noise elimination unit both ends set up the guiding cap respectively, noise elimination unit is array and arranges to be fixed in on the bracing piece through the guiding cap, its characterized in that: the end, positioned on the silencing unit, of the guide cap is a fixed end, the end, positioned on the support rod, of the guide cap is a guide end, the fixed end is square, the end face of the guide end is square, an arc-shaped guide surface is arranged between the fixed end and the guide end of the guide cap, and the guide surface protrudes towards the support rod; the side length of the flow guide end is a, the width of the support rod is b, and b is larger than or equal to b and smaller than or equal to 3 b. The utility model provides an array silencer, aim at improve conventional appearance and be the water conservancy diversion cap of platykurtic, reduce the resistance loss of water conservancy diversion cap.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned defect of prior art, the utility model provides a matrix silencer, including noise elimination cell cube 1, connection standard component 4 and linking bridge 5, noise elimination cell cube 1 both ends set up the flow guide head 3 respectively, and are a plurality of noise elimination cell cube 1 is array and arranges to on 3 bolted fixation of flow guide head connect standard component 4, it is a plurality of linking bridge 5 through perpendicular installation between the linking standard component 4 is fixed, its characterized in that:

the silencing unit body 1 is internally composed of a multi-section silencing body 6, the silencing bodies 6 are distributed in a staggered manner in the vertical direction, and cross points are formed among through holes between adjacent surfaces of adjacent silencing bodies 6;

the flow guide head 3 is provided with a micropore unit 7.

Preferably, the sound-deadening body 6 is composed of sound-absorbing cotton internally filled with glass cloth externally coated.

Preferably, the shell plate of the silencing unit body 1 is a metal microporous plate.

Preferably, the arrayed silencing unit bodies 1 are assembled in the civil air duct or at two ends of the fan through connecting standard parts 4.

Preferably, the micropore units 7 are uniformly distributed on the flow guide head 3.

Preferably, a plurality of adjacent silencing bodies 6 are arranged in a staggered manner, and the shapes of the silencing bodies 6 are the same.

Preferably, a plurality of adjacent silencing bodies 6 are on the same horizontal central axis, and the plurality of silencing bodies 6 are composed of two sizes.

The utility model has the advantages that:

1. the sound absorption effect is enhanced by using turbulent flow;

2. the sound absorption device is not limited to entering from the flow guiding side, so that sound can conveniently and quickly enter a flow disturbing system, and the sound absorption efficiency is improved;

3. the transportation and the carrying are convenient;

4. the transportation and installation of the subway in a narrow space are facilitated;

5. the problem that the traditional sheet type silencer is difficult to match with structures such as civil engineering air ducts and the like is effectively solved;

6. the problem of production and installation difficulty caused by large errors between the actual size of a civil engineering structure and the drawing marking size is solved.

Drawings

FIG. 1 is a diagram showing a structure of a muffler unit according to a first embodiment;

FIG. 2 is a view showing a structure of a muffler formed by a muffler unit and a connecting bracket according to the first embodiment;

FIG. 3 is a structural diagram of the muffler body according to the first embodiment;

FIG. 4 is a structural view of another muffler body according to the first embodiment;

FIG. 5 is a structural view of a muffler unit according to a second embodiment;

fig. 6 is a structural view of another muffler body according to the second embodiment;

in the figure, the position of the upper end of the main shaft,

1. a silencing unit body; 2. civil walls or fans; 3. a flow guide head; 4. connecting standard parts; 5. connecting a bracket; 6. a noise elimination body; 7. a microporous unit.

Detailed Description

In order to make the technical solutions of the present invention better understood and make the above features, objects, and advantages of the present invention more comprehensible, the present invention is further described with reference to the following examples. The examples are intended to illustrate the invention only and are not intended to limit the scope of the invention.

The first embodiment is as follows:

as shown in fig. 1-4, the present invention comprises: silencing unit body 1, connection standard part 4 and linking bridge 5, silencing unit body 1 both ends set up the flow guide head 3 respectively, and are a plurality of silencing unit body 1 is array arrangement to through 3 bolted fixation in flow guide head on connecting standard part 4, it is a plurality of linking bridge 5 through perpendicular installation is fixed between the connecting standard part 4, its characterized in that:

the flow guide head 3 is provided with a micropore unit 7.

In the present embodiment, the sound-damping body 6 is preferably made of sound-absorbing cotton covered with glass cloth.

Set up above-mentioned structure, glass silk cloth is wrapped up in and is being covered in the cotton outside of inhaling sound, and glass silk cloth plays waterproof dustproof effect.

In this embodiment, the housing plate of the sound attenuation unit body 1 is preferably a metal micro-porous plate.

Set up above-mentioned structure, have a plurality of millipore metal sheets, through the effect of water conservancy diversion head 3 for the easier entering micropore of wind, inhale the sound process.

In the present embodiment, it is preferable that the arrayed silencing unit bodies 1 are assembled in the civil air duct or at both ends of the fan by connecting the standard component 4.

Set up above-mentioned structure, array form is modular noise elimination cell cube 1 is convenient for transport and transport turnover, also does benefit to the transport of the narrow and small space of subway and installs, has solved traditional piece formula silencer and has cooperated the difficulty in-process with civil engineering wind channel isotructure to and because the actual dimension of civil engineering structure and the problem of the installation difficulty that drawing mark size's great error caused.

In the present embodiment, the microporous units 7 are preferably distributed uniformly on the flow guide head 3.

Set up above-mentioned structure, a plurality of apertures are beaten to water conservancy diversion head 3, and gaseous also can follow the end cover and get into, do not confine to and get into from water conservancy diversion head 3 side, make sound get into the vortex system fast on the one hand, and on the other hand has the intersect because the form of falling to the wrong of noise elimination body arranges, also can produce the sound absorption effect.

In this embodiment, it is preferable that the adjacent noise elimination bodies 6 are arranged in a staggered manner, and the shapes of the noise elimination bodies 6 are the same.

Example two:

as shown in fig. 5-6, the difference between the second embodiment and the first embodiment is that, in the present embodiment, a plurality of adjacent sound-attenuating bodies 6 are on the same horizontal central axis, and a plurality of sound-attenuating bodies 6 are composed of two sizes.

By adopting the structure, the structure is not limited to the arrangement mode of the silencing body 6, and a gap is formed between the silencing body and the shell plate of the silencing unit body 1, so that turbulent flow is formed.

As can be seen in connection with fig. 1-6, in use,

7. the plurality of silencing bodies 6 are distributed in a staggered manner in the vertical direction, gaps are formed between the two sides of each silencing body and the outer shell plate walls, the contact area between sound and silencing cotton can be increased through the gaps, turbulence is formed, and the sound absorption effect is enhanced;

8. the flow guide head 3 is provided with a plurality of small holes to form the micropore units 7, gas can enter from the flow guide head 3 and is not limited to enter from the flow guide side, so that on one hand, sound can rapidly enter the turbulence system, and on the other hand, sound absorption effect can be generated due to staggered arrangement of the silencing bodies and the crossed points;

9. compared with the traditional sheet type silencer, the array silencer has the advantages that the width of the sound absorber is increased, the low-frequency sound absorption coefficient is improved, and the sound absorption effect is correspondingly improved;

10. the channel width of the array type silencer is reduced, so that the high-frequency cut-off frequency is improved, and a good high-frequency silencing effect can be ensured;

11. the total effective sound absorption area of the array type silencer is increased, so that the whole sound absorption capacity is correspondingly improved.

The above-described embodiments are merely illustrative of the principles and utilities of the present patent application and are not intended to limit the present patent application. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of this patent application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of this patent application.

Claims

1. The utility model provides a matrix silencer, its characterized in that, includes noise elimination cell cube (1), connects standard (4) and linking bridge (5), noise elimination cell cube (1) both ends set up diversion head (3) respectively, and are a plurality of noise elimination cell cube (1) is the array and arranges to on connecting standard (4) through diversion head (3) bolt fastening, it is a plurality of it is fixed through linking bridge (5) of perpendicular installation between connecting standard (4), its characterized in that:

the silencing unit body (1) is internally composed of multi-section silencing bodies (6), the silencing bodies (6) are distributed in a staggered manner in the vertical direction, and cross points are formed among through holes between adjacent surfaces of adjacent silencing bodies (6);

and a micropore unit (7) is arranged on the flow guide head (3).

2. The matrix muffler of claim 1, wherein: the noise elimination body (6) is composed of sound absorption cotton filled with glass fiber cloth externally.

3. The matrix muffler of claim 2, further comprising: the shell plate of the silencing unit body (1) is a metal microporous plate.

4. The matrix muffler of claim 3, wherein: the arrayed silencing unit bodies (1) are assembled in the civil air duct or at two ends of the fan through connecting standard parts (4).

5. The matrix muffler of claim 4, wherein: the micropore units (7) are uniformly distributed on the flow guide head (3).

6. The matrix muffler according to any one of claims 1 to 5, wherein: the adjacent noise elimination bodies (6) are arranged in a staggered mode from top to bottom, and the noise elimination bodies (6) are identical in shape.

7. The matrix muffler according to any one of claims 1 to 5, wherein: the adjacent silencing bodies (6) are positioned on the same horizontal central axis, and the silencing bodies (6) are formed by two sizes.