CN217354513U

CN217354513U - Low-noise silencer

Info

Publication number: CN217354513U
Application number: CN202220408068.3U
Authority: CN
Inventors: 郭国林; 张帅一; 王倩
Original assignee: Shandong Huasheng Pesticide Machinery Co Ltd
Current assignee: Shandong Huasheng Pesticide Machinery Co Ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-09-02
Anticipated expiration: 2032-02-28

Abstract

The utility model discloses a novel low noise silencer, including silencer casing, baffle, inside first chamber and the second chamber of being provided with of silencer casing, first chamber and second chamber by the baffle separates, first chamber is equipped with the intake pipe, the second chamber is equipped with blast pipe, orifice plate and sound absorption cotton, the orifice plate periphery is equipped with turn-ups structure, the sound absorption cotton inlays the dress and is in the orifice plate, with the turn-ups structure cooperation, baffle upper portion is equipped with the flanging hole, the flanging hole's turn-ups direction is unanimous with the waste gas flow direction. The beneficial effects are that: the utility model is simple in operation, convenient to use through optimizing the baffle structure, increases the sound absorption cotton, has reached the effect that reduces the volume, noise reduction.

Description

Low-noise silencer

Technical Field

The utility model relates to an use the gasoline engine to be the generating set technical field of supporting power, especially relate to a low noise silencer.

Background

The existing generator set using a gasoline engine as matched power has the defects that most of the mufflers are 3 large decompression cavities and the volume is large. The structure is not optimized, so that the problems of large volume and large noise are caused.

Disclosure of Invention

In order to solve the problem, the utility model aims to provide a low noise silencer, its advantage is, easy operation, convenient to use through optimizing baffle structure, increases the sound absorption cotton, has realized reaching the effect of noise reduction with 2 less decompression chambeies.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a low-noise silencer comprises a silencer shell and a partition plate, wherein a first cavity and a second cavity are arranged in the silencer shell, the first cavity and the second cavity are separated by the partition plate, the first cavity is provided with an air inlet pipe, and the second cavity is provided with an exhaust pipe, a small pore plate and sound absorption cotton; the periphery of the small pore plate is provided with a flanging structure, and the sound absorption cotton is embedded in the small pore plate and matched with the flanging structure; the upper part of the partition board is provided with a flanging hole, and the flanging direction of the flanging hole is consistent with the flowing direction of the waste gas.

So set up, through optimizing baffle structure, orifice plate and sound absorption cotton, realized reducing the volume, waste gas gets into first chamber by the intake pipe, gets into the second chamber through baffle turn-ups hole after the expansion, because the turn-ups direction is unanimous with the waste gas flow direction to the noise reduction. When waste gas flows through the inner wall of the second cavity, the small hole plate and the sound absorption cotton are impacted, the exhaust energy is reduced, and therefore noise is reduced again.

As a preferred scheme of the utility model, spread all over the aperture on the aperture board, the aperture diameter is not more than phi 3 mm.

So set up, the cotton supporting capability of making an uproar and aperture board to the sound absorption of falling when having guaranteed waste gas and assaulted.

The utility model discloses the beneficial effect who reaches is, the utility model is simple in operation, convenient to use through optimizing baffle structure, increases the sound absorption cotton, has reached the effect that reduces the volume, noise reduction.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to unduly limit the invention.

Fig. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a schematic structural view of the baffle flanging hole of the present invention.

The numbering in the drawings illustrates:

1. an air inlet pipe; 2. a partition plate; 3. sound absorbing cotton; 4. a small orifice plate; 5. an exhaust pipe; 6. a muffler housing; 7. a first chamber; 8. a second chamber.

Detailed Description

It should be noted that, in the following paragraphs, possible terms of orientation include, but are not limited to, "upper, lower, left, right, front, rear, inner and outer", etc., and the orientations are the orientations corresponding to the views shown in the drawings of the specification, which are only intended to facilitate those skilled in the art to better understand the technical solutions of the present invention, and should not be taken as limiting the scope or technical solutions of the present invention.

It should also be noted that the terms "mounted," "assembled," "connected," and "connected" are to be construed broadly unless otherwise specifically indicated and limited. For example, the connection can be fixed connection or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the creation of the present invention can be understood by those skilled in the art according to specific situations.

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1-2, a low-noise muffler comprises a muffler shell 6 and a partition plate 2, wherein a first cavity 7 and a second cavity 8 are arranged inside the muffler shell 6, the first cavity 7 and the second cavity 8 are separated by the partition plate 2, a plurality of flanging holes are arranged at the upper part of the partition plate 2, the first cavity 7 is provided with an air inlet pipe 1, and the second cavity 8 is provided with an exhaust pipe 5, a small hole plate 4 and sound absorption cotton 3; the small hole plate 4 is provided with small holes, the periphery of the small hole plate 4 is provided with a flanging structure, and the sound absorption cotton 3 is embedded in the small hole plate 4 and matched with the flanging structure.

Specifically, after entering the first cavity 7 through the air inlet pipe 1, the exhaust gas enters the second cavity 8 through a plurality of flanging holes in the upper part of the partition plate 2, and the flanging direction of the flanging holes is consistent with the flow direction of the exhaust gas, so that the noise is reduced; when the waste gas flows through the inner wall of the second cavity 8, the waste gas impacts the small pore plate 4 and the sound absorption cotton 3, and the exhaust energy is reduced through the small pore plate 4 and the sound absorption cotton 3, so that the noise is reduced again; the exhaust gas is finally discharged out of the muffler through the exhaust pipe 5.

The drawings and description above represent only preferred embodiments of the invention and are not intended to limit the invention, since numerous modifications and variations will readily occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a low noise silencer, includes silencer casing, baffle, its characterized in that: a first cavity and a second cavity are arranged in the silencer shell, the first cavity and the second cavity are separated by the partition plate, the first cavity is provided with an air inlet pipe, and the second cavity is provided with an exhaust pipe, a small pore plate and sound absorption cotton; the periphery of the small pore plate is provided with a flanging structure, and the sound absorption cotton is embedded in the small pore plate and matched with the flanging structure; the upper part of the partition board is provided with a flanging hole, and the flanging direction of the flanging hole is consistent with the flowing direction of the waste gas.

2. A low noise muffler according to claim 1, wherein: the small holes are distributed on the small hole plate, and the diameter of each small hole is not more than phi 3 mm.