CN218816595U

CN218816595U - Engine tail gas silencer

Info

Publication number: CN218816595U
Application number: CN202223476845.7U
Authority: CN
Inventors: 江兴炎; 冉红艳
Original assignee: Best Purifying Equipment Ltd
Current assignee: Best Purifying Equipment Ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-04-07
Anticipated expiration: 2032-12-26

Abstract

The utility model relates to an engine exhaust silencer, square shell bottom is equipped with the manhole, square shell side is equipped with the discharge hole, square shell internally mounted polylith perforated plate, the polylith perforated plate is around forming big cavity, the polylith baffle separates into first noise elimination cavity with big cavity, the second noise elimination cavity, the third noise elimination cavity, the fourth noise elimination cavity, the fifth noise elimination cavity, the first noise elimination cavity of manhole intercommunication, fifth noise elimination cavity intercommunication discharge hole, the muffler pipe divide into first group muffler pipe, the second group muffler pipe, the third group muffler pipe, the fourth group muffler pipe, the utility model discloses silencer structural design is reasonable, the noise gets into the back in the silencer through the manhole, because the silencer is inside to be equipped with first noise elimination cavity, the second noise elimination cavity, the third noise elimination cavity, the fourth noise elimination cavity, the fifth noise elimination cavity to install multiunit muffler pipe between each noise elimination cavity, utilize porous sound absorption structure to reduce the noise, finally realize good noise elimination mesh of making an uproar of falling.

Description

Engine tail gas silencer

Technical Field

The utility model relates to an engine noise elimination equipment field, concretely relates to silencer for engine exhaust.

Background

The engine has very high exhaust noise when in work, a silencer is generally arranged at an exhaust gas outlet of the engine in order to effectively reduce the influence of noise on the surrounding working environment, the existing engine silencer is only provided with one silencing pipe in the cylindrical shape, and the noise reduction and silencing effects are generally not ideal.

SUMMERY OF THE UTILITY MODEL

There is above-mentioned defect to prior art, the utility model provides an engine tail gas silencer, concrete technical scheme is as follows:

the utility model provides an engine exhaust silencer, including square shell, square shell bottom is equipped with the access hole, square shell side is equipped with the discharge hole, still include perforated plate and muffler pipe, be equipped with a plurality of micropores in the perforated plate, square shell internally mounted polylith perforated plate, polylith perforated plate centers on forming big cavity, install polylith baffle in the big cavity, the polylith baffle separates into first noise elimination cavity with big cavity, second noise elimination cavity, third noise elimination cavity, fourth noise elimination cavity, fifth noise elimination cavity, the access hole communicates first noise elimination cavity, fifth noise elimination cavity communicates the discharge hole, the muffler pipe divide into first group muffler pipe, the muffler pipe of second group, the muffler pipe of third group, the muffler pipe of fourth group, first group muffler pipe one end is located first noise elimination cavity and the other end is located second noise elimination cavity, second group muffler pipe one end is located second noise elimination cavity and the other end is located third noise elimination cavity, third group muffler pipe one end is located the fourth noise elimination cavity and the other end is located the fifth noise elimination cavity.

As a preferred scheme of the utility model, first group's muffler pipe, second group's muffler pipe, third group's muffler pipe, fourth group's muffler pipe have 4 muffler pipes respectively.

As an optimized proposal of the utility model, the silencing pipe is a porous silencing pipe.

As a preferred scheme of the utility model, first noise elimination cavity is located well upper position, and the second noise elimination cavity is located first noise elimination cavity right side, and the third noise elimination cavity is located second noise elimination cavity right side, and the fourth noise elimination cavity is located third noise elimination cavity left side and fourth noise elimination cavity is located second noise elimination cavity downside, and the fifth noise elimination cavity is located the left side of fourth noise elimination cavity, first noise elimination cavity.

As an optimized scheme of the utility model, square shell surface is equipped with a plurality of lugs.

Has the beneficial effects that: the utility model has the advantages of reasonable design, the noise gets into the back in the silencer through the manhole, because the silencer is inside to be equipped with first noise elimination cavity, second noise elimination cavity, third noise elimination cavity, fourth noise elimination cavity, fifth noise elimination cavity to install multiunit noise elimination pipe between each noise elimination cavity, utilize porous sound-absorbing structure to reduce the noise, finally realize the good noise elimination purpose of making an uproar of falling.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is an exploded view of the present invention;

fig. 3 is a structural sectional view of the present invention;

fig. 4 is a perspective view of the muffler pipe of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

As shown in fig. 1 to 4, an engine tail gas muffler comprises a square housing 1, the square housing 1 may be formed by welding a plurality of plates, the bottom of the square housing 1 is provided with an inlet hole 2, a discharge hole 3 is arranged on the side of the square housing 1, the engine tail gas muffler further comprises a perforated plate 4 and a muffling pipe, a plurality of micropores are arranged in the perforated plate 4 to facilitate noise reduction, a plurality of perforated plates 4 are arranged inside the square housing 1, the perforated plates 4 surround to form a large chamber, a plurality of partition plates 6 are arranged in the large chamber, the large chamber is divided into a first muffling chamber 7, a second muffling chamber 8, a third muffling chamber 9, a fourth muffling chamber 10, a fifth muffling chamber 11, the inlet hole 2 is communicated with the first muffling chamber 7, the fifth muffling chamber 11 is communicated with the discharge hole 3, the muffling pipe is divided into a first muffling pipe 51, a second muffling pipe 52, a third muffling pipe 53, a fourth muffling pipe 54, one end of the first muffling pipe 51 is arranged in the first muffling chamber 7, the other end of the second muffling pipe 52 is arranged in the second muffling chamber 8, another end of the third muffling pipe 53 is arranged in the fourth muffling chamber 9, and another end of the fourth muffling chamber 10 is arranged in the fourth muffling chamber 11.

Specifically, 4 muffling pipes are respectively arranged in the first group of muffling pipes 51, the second group of muffling pipes 52, the third group of muffling pipes 53 and the fourth group of muffling pipes 54, the muffling pipes are porous muffling pipes in the prior art, and the muffling pipes are provided with a plurality of holes.

As shown in fig. 3, the first sound-deadening chamber 7 is located at the middle-upper position, the second sound-deadening chamber 8 is located at the right side of the first sound-deadening chamber 7, the third sound-deadening chamber 9 is located at the right side of the second sound-deadening chamber 8, the fourth sound-deadening chamber 10 is located at the left side of the third sound-deadening chamber 9 and the fourth sound-deadening chamber 10 is located at the lower side of the second sound-deadening chamber 8, and the fifth sound-deadening chamber 11 is located at the left side of the fourth sound-deadening chamber 10 and the first sound-deadening chamber 7.

Specifically, the outer surface of the square shell 1 is provided with a plurality of lifting lugs 12, and the lifting lugs 12 are beneficial to lifting the square silencer for installation.

The working principle is as follows: engine noise sound waves enter the first silencing chamber 7 from the inlet hole 2, then sequentially pass through the first group of silencing tubes 51, the second silencing chamber 8, the second group of silencing tubes 52, the third silencing chamber 9, the third group of silencing tubes 53, the fourth silencing chamber 10, the fourth group of silencing tubes 54 and the fifth silencing chamber 11 to the exhaust hole 3, and in the sound conduction process, part of sound energy is rubbed in the pore structures of the multistage silencing chambers and the multistage silencing tubes to be converted into heat energy to be dissipated, so that the step-by-step noise reduction is realized.

The above description is provided for the purpose of describing the present invention in more detail with reference to the preferred embodiments, and it should not be construed that the present invention is limited to these descriptions, and it will be apparent to those skilled in the art that the present invention can be implemented in many ways without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides an engine exhaust silencer, includes square shell, and square shell bottom is equipped with the manhole, and square shell side is equipped with discharge hole, its characterized in that: the square shell is internally provided with a plurality of perforated plates, the perforated plates surround to form a large cavity, a plurality of partition plates are arranged in the large cavity, the large cavity is divided into a first silencing cavity, a second silencing cavity, a third silencing cavity, a fourth silencing cavity and a fifth silencing cavity by the partition plates, an inlet hole is communicated with the first silencing cavity, the fifth silencing cavity is communicated with an outlet hole, the silencing pipes are divided into a first group of silencing pipes, a second group of silencing pipes, a third group of silencing pipes and a fourth group of silencing pipes, one end of each first group of silencing pipes is located in the first silencing cavity, the other end of each first group of silencing pipes is located in the second silencing cavity, one end of each second group of silencing pipes is located in the second silencing cavity, the other end of each third group of silencing pipes is located in the third silencing cavity, the other end of each third group of silencing pipes is located in the fourth silencing cavity, one end of each fourth group of silencing pipes is located in the fourth silencing cavity, and the other end of each fourth group of each silencing pipe is located in the fifth silencing cavity.

2. The engine exhaust muffler according to claim 1, wherein: the first group of muffling tubes, the second group of muffling tubes, the third group of muffling tubes and the fourth group of muffling tubes are respectively provided with 4 muffling tubes.

3. The engine exhaust muffler according to claim 1 or 2, wherein: the silencing pipe is a porous silencing pipe.

4. The engine exhaust muffler according to claim 1, wherein: the first silencing chamber is located at the middle-upper position, the second silencing chamber is located on the right side of the first silencing chamber, the third silencing chamber is located on the right side of the second silencing chamber, the fourth silencing chamber is located on the left side of the third silencing chamber, the fourth silencing chamber is located on the lower side of the second silencing chamber, and the fifth silencing chamber is located on the left sides of the fourth silencing chamber and the first silencing chamber.

5. The engine exhaust muffler according to claim 1, wherein: the outer surface of the square shell is provided with a plurality of lifting lugs.