CN211008816U

CN211008816U - Silencer

Info

Publication number: CN211008816U
Application number: CN201922197187.XU
Authority: CN
Inventors: 毛祖禾
Original assignee: Jiangsu Rui Ying Machinery Manufacturing Co ltd
Current assignee: Jiangsu Rui Ying Machinery Manufacturing Co ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-07-14
Anticipated expiration: 2029-12-10

Abstract

The utility model belongs to the technical field of the amortization, a muffler is disclosed, include: the air inlet is communicated with an exhaust port of the engine; the silencer comprises a silencing main body, wherein the air inlet is mounted at the head end of the silencing main body, the silencing main body comprises at least two silencing cavities, a silencing component is arranged between every two adjacent silencing cavities, the silencing component comprises a first buffer plate and a plurality of guide pipes, the first buffer plate is arranged between every two adjacent silencing cavities and is abutted to the inner wall of the silencing main body in a sealing mode, the guide pipes are mounted on the first buffer plate, and the guide pipes are used for communicating the two adjacent silencing cavities; and the air outlet is arranged on the tail end of the silencing main body and communicated with the air inlet. Through the structure, the silencer can be communicated with the exhaust port of the engine, so that the noise generated during the working of the engine is reduced, and the harm to the surrounding environment and personnel is reduced.

Description

Silencer

Technical Field

The utility model relates to an amortization technical field especially relates to a muffler.

Background

The silencer is a device for reducing noise in a gas flow pipe or an intake and exhaust system having noise transmission, can block the transmission of sound waves, allows gas flow to pass through, and is an effective tool for controlling noise. In recent years, with the increasing awareness of environmental protection, noise pollution, which is one of the three main pollutants, is becoming more and more important, and not only can damage the auditory system of the human body and influence sleep, but also can cause emotional anxiety and influence the living environment of human beings.

In the current generator set and the drainage pump set, an engine is generally used as a prime motor to drive a functional unit to work, and because the current generator set and the drainage pump set which are commonly used have higher power consumption and need a high-power engine to provide power, the generated noise is high in decibel and long in duration, and the influence on the surrounding environment and personnel is larger.

At present, although can have the muffler on some engines certainly, this type of muffler often the noise cancelling effect is relatively poor, is difficult to satisfy people's demand, causes generating set or drainage pump package noise that produces at the during operation great, brings harm for surrounding environment and personnel.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a muffler, this muffler can feed through in the gas vent of engine, reduces the noise that the engine during operation produced, reduces the harm to surrounding environment and personnel.

To achieve the purpose, the utility model adopts the following technical proposal:

a muffler, comprising:

the air inlet is communicated with an exhaust port of the engine;

the silencer comprises a silencing main body, wherein the air inlet is mounted at the head end of the silencing main body, the silencing main body comprises at least two silencing cavities, a silencing component is arranged between every two adjacent silencing cavities, the silencing component comprises a first buffer plate and a plurality of guide pipes, the first buffer plate is arranged between every two adjacent silencing cavities and is abutted to the inner wall of the silencing main body in a sealing mode, the guide pipes are mounted on the first buffer plate, and the guide pipes are used for communicating the two adjacent silencing cavities;

and the air outlet is arranged on the tail end of the silencing main body and communicated with the air inlet.

Preferably, the flow guide pipes on two adjacent noise reduction assemblies are arranged in a staggered mode.

Preferably, the silencing assembly comprises at least two first buffer plates, and the at least two first buffer plates are attached to each other.

Preferably, the first buffer plate is made of high-temperature-resistant buffer cotton.

Preferably, the noise reduction main body further comprises a second buffer plate, the second buffer plate is arranged at the air inlet, the second buffer plate is arranged in the noise reduction cavity and abutted against the head end and the inner wall of the noise reduction main body, a first communicating hole is formed in the second buffer plate, and the first communicating hole is communicated with the air inlet and the noise reduction cavity.

Preferably, the second buffer plate is made of high-temperature-resistant buffer cotton.

Preferably, the silencing main body further comprises a third buffer plate, the third buffer plate is arranged at the air outlet, the third buffer plate is arranged in the silencing cavity and abutted to the tail end and the inner wall of the silencing main body, a second communicating hole is formed in the third buffer plate, and the second communicating hole is communicated with the air outlet and the silencing cavity.

Preferably, the third buffer plate is made of high-temperature-resistant buffer cotton.

Preferably, the air inlet, the silencing main body and the air outlet are all arranged in a cylindrical shape, and the central line of the air inlet, the central line of the silencing main body and the central line of the air outlet are all arranged in a superposition manner.

Preferably, a first connecting flange is arranged on the air inlet, and the air inlet is connected to the engine through the first connecting flange.

The utility model has the advantages that:

the utility model provides a silencer, this silencer includes the amortization main part, the air inlet of amortization main part communicates on the gas vent of engine, the amortization main part includes two at least amortization chambeies, be provided with the amortization subassembly between two adjacent amortization chambeies, the amortization subassembly includes a plurality of honeycomb ducts and first buffer board, the first buffer board is kept apart and is set up between two adjacent amortization chambeies, prevent the random circulation of engine waste gas between two adjacent amortization chambeies, and make the noise that comes along with the waste gas transmission rebound many times in the amortization intracavity and absorbed by first buffer board, thereby the noise that the engine produced has been reduced; in addition, because at least two silencing cavities are arranged in the silencer, the noise generated by the engine is further effectively reduced, and the harm to the surrounding environment and personnel is reduced.

Drawings

Fig. 1 is a schematic perspective view of a silencer according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a silencer according to an embodiment of the present invention.

In the figure:

1. an air inlet; 11. a first connecting flange; 2. a silencing body; 21. a sound-deadening chamber; 22. a noise reduction assembly; 221. a first buffer plate; 222. a flow guide pipe; 23. a second buffer plate; 231. a first communication hole; 24. a third buffer plate; 241. a second communication hole; 3. an air outlet; 31. a second attachment flange.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The utility model provides a silencer, as shown in fig. 1, this silencer includes air inlet 1, amortization main part 2 and gas outlet 3, and air inlet 1 is installed in the head end of amortization main part 2, and air inlet 1 feeds through in the gas vent of engine, and gas outlet 3 is installed in the tail end of amortization main part 2 and can be linked together with air inlet 1 for the waste gas that the engine produced gets into this silencer from air inlet 1 and can follow 3 discharges of gas outlet after the amortization. Wherein the noise that the engine produced can bounce back and be absorbed by amortization main part 2 in amortization main part 2 many times after getting into amortization main part 2 along with waste gas in, can effectively reduce the noise in the waste gas to reduce the noise that the engine produced, can reduce the harm of noise to surrounding environment and personnel.

In the present embodiment, the intake port 1 has one end communicating with the silencing body 2 and the other end communicating with an exhaust port of the engine, for guiding exhaust gas generated from the engine into the silencing body 2. Preferably, the air inlet 1 is cylindrical, which not only saves the material used for manufacturing, but also reduces the resistance suffered by the waste gas when the waste gas flows through the air inlet 1, and is beneficial to smooth air inlet. More preferably, air inlet 1 communicates in the one end of amortization main part 2 and passes through welded connection in the head end of amortization main part 2, not only can guarantee the leakproofness of connecting and prevent the emergence of gas leakage, can also improve the joint strength of air inlet 1 and amortization main part 2. As shown in fig. 2, further, a first connecting flange 11 is arranged at one end of the air inlet 1 communicated with the exhaust port of the engine, and the air inlet 1 is connected to the exhaust port of the engine through the first connecting flange 11, so that the connecting strength between the silencer and the exhaust port of the engine can be ensured, the silencer can be conveniently disassembled and assembled, and the subsequent replacement and maintenance of the silencer can be conveniently performed.

Preferably, the silencing body 2 comprises at least two silencing cavities 21 and at least two silencing assemblies 22, wherein the silencing assemblies 22 are arranged between two adjacent silencing cavities 21. Specifically, the silencing assembly 22 includes a first buffer plate 221 and a plurality of flow guide tubes 222, the first buffer plate 221 is disposed between two adjacent silencing chambers 21 and separates the two adjacent silencing chambers 21, so as to prevent the exhaust gas in the two silencing chambers 21 from circulating at will, and make the noise in the exhaust gas rebound in the silencing chambers 21 for a plurality of times, so as to attenuate the energy and be absorbed by the first buffer plate 221, thereby being beneficial to reducing the noise in the exhaust gas. In this embodiment, the first buffer plate 221 is abutted to the inner wall surface of the silencing body 2 in a sealing manner to isolate the two adjacent silencing chambers 21, so that the first buffer plate 221 is conveniently connected with the inner wall of the silencing body 2, and the installation is convenient. Preferably, the first buffer plate 221 is made of high temperature resistant buffer cotton, which can ensure that the first buffer plate 221 can bear the high temperature of the tail gas of the engine, and the first buffer plate 221 has a better sound absorption effect, thereby being beneficial to reducing the noise in the exhaust gas.

The flow guide tube 222 is installed on the first buffer plate 221 and communicated with the two adjacent silencing chambers 21, so that the waste gas in the silencing chambers 21 can circulate through the flow guide tube 222, the waste gas generated by the engine can be discharged from the silencing body 2, and the smooth exhaust of the silencer is ensured. Preferably, the silencing assembly 22 includes at least two first buffer plates 221, and the at least two first buffer plates 221 are attached to each other, so as to be capable of supporting the flow guide pipe 222 mounted thereon. The specific number of the first buffer plates 221 may be selected by those skilled in the art according to actual circumstances.

In this embodiment, the flow guide tubes 222 of two adjacent muffler assemblies 22 are disposed in a staggered manner, so that the exhaust gas flowing along the flow guide tube 222 from upstream can impact on the first buffer plate 221, and the exhaust gas is prevented from directly impacting into the flow guide tube 222 from downstream and directly flowing downstream, which is not only beneficial to promoting the first buffer plate 221 to absorb noise, but also beneficial to the exhaust gas bouncing in the muffler chamber 21, and beneficial to the attenuation of noise energy in the exhaust gas and the absorption of the exhaust gas by the first buffer plate 221.

In this embodiment, the silencing body 2 is set to be cylindrical, which not only saves the manufacturing materials and reduces the manufacturing cost, but also reduces the resistance to the waste gas flowing through the silencing body 2, thereby being beneficial to ensuring smooth ventilation of the silencer. Preferably, the central line of the silencing body 2 is arranged to coincide with the central line of the air inlet 1, so as to avoid the silencing body 2 from deviating to one side, and facilitate the installation of the silencer. More preferably, the plurality of flow conduits 222 are uniformly distributed around the center line of the silencing body 2, so as to avoid the influence of the smooth ventilation of the silencing body 2 caused by the accumulation of more exhaust gas in the local area of the silencing cavity 21.

Preferably, the silencing body 2 further comprises a second buffer plate 23, the second buffer plate 23 is arranged at the air inlet 1, and the second buffer plate 23 is arranged in the silencing cavity 21 and abutted to the head end face and the inner wall face of the silencing body 2, so that the end face of the silencing body 2 can absorb noise in tail gas, and noise generated by the engine is further reduced by the silencer. More preferably, the second buffer plate 23 is provided with a first communicating hole 231, and the first communicating hole 231 communicates with the intake port 1 and the muffling chamber 21, so that the exhaust gas discharged from the engine can smoothly enter the muffling chamber 21 through the first communicating hole 231. In this embodiment, second buffer board 23 adopts high temperature resistant buffering cotton to make, can enough guarantee that second buffer board 23 can bear engine exhaust's high temperature, makes second buffer board 23 have better sound absorption again, is favorable to reducing the noise in the waste gas.

In this embodiment, amortization main part 2 still includes third buffer board 24, and third buffer board 24 sets up in gas outlet 3 department, and third buffer board 24 sets up in amortization chamber 21 and butt on the tail end face and the internal face of amortization main part 2 for the noise in tail gas also can be absorbed to the terminal surface of amortization main part 2, is favorable to further improving the noise that this muffler reduced the engine and produced. More preferably, the third buffer plate 24 is provided with a second communication hole 241, and the second communication hole 241 is communicated with the air outlet 3 and the sound-deadening chamber 21, so that the treated exhaust gas can be discharged from the sound-deadening chamber 21 through the second communication hole 241. In this embodiment, third buffer board 24 adopts high temperature resistant buffering cotton to make, can enough guarantee that third buffer board 24 can bear engine exhaust's high temperature, makes third buffer board 24 have better sound absorption again, is favorable to reducing the noise in the waste gas.

Preferably, amortization main part 2 still includes the side buffer board, and the side buffer board is connected on the internal face of amortization main part 2, and the side buffer board can carry out the sound absorption to noise in the waste gas in the sound cavity 21, can increase the sound absorbing area in the amortization main part 2 by a wide margin, is favorable to improving the ability that this muffler reduced noise.

In the present embodiment, one end of the air outlet 3 communicates with the silencing body 2, and the other end is used for discharging the exhaust gas in the silencing body 2. Preferably, the air outlet 3 is cylindrical, which not only saves the manufacturing material, but also reduces the resistance of the waste gas flowing through the air outlet 3, and is beneficial to smooth exhaust. More preferably, the gas outlet 3 is communicated with one end of the silencing main body 2 and is connected to the tail end of the silencing main body 2 through welding, so that the tightness of connection can be guaranteed to prevent gas leakage, and the connection strength of the gas outlet 3 and the silencing main body 2 can be improved. Further, 3 one ends of exhausting outside of gas outlet are equipped with second flange 31, and gas outlet 3 can be connected on exhaust gas duct through second flange 31, can guarantee this muffler and exhaust gas duct's joint strength, the dismouting of the muffler of being convenient for again, the subsequent change and the maintenance of this muffler of being convenient for.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A muffler, comprising:

the air inlet (1), the said air inlet (1) communicates on the exhaust outlet of the engine;

the noise reduction main body (2), the air inlet (1) is mounted at the head end of the noise reduction main body (2), the noise reduction main body (2) comprises at least two noise reduction chambers (21), a noise reduction component (22) is arranged between every two adjacent noise reduction chambers (21), the noise reduction component (22) comprises a first buffer plate (221) and a plurality of guide pipes (222), the first buffer plate (221) is arranged between every two adjacent noise reduction chambers (21) and is in sealing butt joint with the inner wall of the noise reduction main body (2), the guide pipes (222) are mounted on the first buffer plate (221), and the guide pipes (222) communicate the two adjacent noise reduction chambers (21);

and the air outlet (3) is arranged on the tail end of the silencing main body (2) and communicated with the air inlet (1).

2. The muffler of claim 1 wherein the flow conduits (222) of adjacent two of the muffler assemblies (22) are oriented in a staggered manner.

3. The muffler of claim 1 wherein the muffler assembly (22) comprises at least two first baffle plates (221), at least two first baffle plates (221) being snugly disposed.

4. The muffler according to claim 1, wherein the first buffer plate (221) is made of high temperature resistant buffer cotton.

5. The muffler according to claim 1, wherein the muffler body (2) further comprises a second buffer plate (23), the second buffer plate (23) is disposed at the air inlet (1), the second buffer plate (23) is disposed in the muffling chamber (21) and abuts against the head end and the inner wall of the muffler body (2), a first communication hole (231) is disposed on the second buffer plate (23), and the first communication hole (231) is communicated with the air inlet (1) and the muffling chamber (21).

6. A silencer according to claim 5, characterized in that the second baffle (23) is made of high temperature resistant buffer cotton.

7. A silencer according to claim 1, characterized in that the silencing body (2) further comprises a third buffer plate (24), the third buffer plate (24) is arranged at the air outlet (3), the third buffer plate (24) is arranged in the silencing chamber (21) and abuts against the tail end and the inner wall of the silencing body (2), a second communication hole (241) is arranged on the third buffer plate (24), and the second communication hole (241) is communicated with the air outlet (3) and the silencing chamber (21).

8. The muffler of claim 7 wherein the third baffle (24) is made of high temperature resistant cushioning cotton.

9. A silencer according to claim 1, characterized in that the inlet opening (1), the silencing body (2) and the outlet opening (3) are all arranged cylindrically, and the centre line of the inlet opening (1), the centre line of the silencing body (2) and the centre line of the outlet opening (3) are all arranged in coincidence.

10. A silencer according to claim 1, characterized in that the inlet (1) is provided with a first connecting flange (11), by means of which first connecting flange (11) the inlet (1) is connected to the engine.