A flame suppressor and silencer for engine exhaust

Abstract

The utility model relates to the technical field of engines, and in particular to a flame extinguisher and silencer for engine exhaust, wherein the flame extinguisher and silencer for engine exhaust include a silencer body, flame extinguisher chambers are arranged on both left and right sides of the silencer body, a mesh plate is fixedly connected to the middle of the flame extinguisher chamber, a muffler chamber is arranged in the middle of the silencer body, an air inlet is arranged on the right side of the muffler body, and the right end of the air inlet is connected to the exhaust port of the engine. The flame extinguisher and silencer for engine exhaust provided by the utility model can effectively eliminate flames in exhaust gas and prevent pollution to the environment by installing the flame extinguisher and the mesh plate is arranged in the flame extinguisher chamber. At the same time, by installing the muffler, the noise in the exhaust process can be significantly reduced, and the quality of the working environment can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to a flame suppressor and silencer for engine exhaust. Background Art

[0002] When the engine is running, its exhaust process will generate noise and flames, which not only pollutes the environment, but may also cause damage to the engine and its surrounding equipment. Therefore, how to effectively reduce the noise and eliminate the flame during the engine exhaust process is an urgent problem to be solved in the field of engine technology. At present, although the flame silencers on the market can reduce noise and eliminate flames to a certain extent, their effects are not ideal, the sound reduction is small, and the low-frequency noise is large.

[0003] Therefore, it is necessary to provide a new flame suppressor and silencer for engine exhaust to solve the above-mentioned technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a flame suppressor and silencer for engine exhaust.

[0005] The flame suppressor silencer for engine exhaust provided by the utility model comprises: a silencer body, flame suppressor chambers are arranged on the left and right sides of the interior of the silencer body, a mesh plate is fixedly connected to the middle of the flame suppressor chamber, a silencer chamber is arranged in the middle of the interior of the silencer body, an air inlet is arranged on the right side of the silencer body, the right end of the air inlet is connected to the exhaust port of the engine, the exhaust gas of the engine enters the flame suppressor chamber through the air inlet, passes through the mesh plate, since there are many small holes distributed on the surface of the mesh plate, when the flame or high-temperature gas passes through these small holes, their flow paths are first restricted by these channels, and since the flow channel size is small, the gas molecules will collide with the surface of the mesh plate during the flow process, and this collision will not only lead to the conversion of fluid energy and the dissipation of part of the kinetic energy, but also change the shape and temperature of the flame. In addition, the complex vortex formed when the fluid passes through the mesh plate The flow helps to disperse energy, thereby reducing noise and flame energy. This vortex effect not only helps to reduce flame intensity, but also changes the direction of flame propagation, causing the flame to reflect and diffuse multiple times in the mesh plate, increasing the contact area between the flame and the mesh plate, thereby enhancing the heat dissipation effect. The gas then enters the first air inlet pipe, and reduces the noise generated by the gas flow through the honeycomb silencer holes. The gas is then transported to the second chamber, impacting the second resonant partition board to reduce noise. The gas is then transported to the first chamber through the second air inlet pipe, and reduced noise again through the symmetrical resonant partition board. The gas is then input into the left flame extinguishing chamber through the outlet pipe, and flame extinguishing is performed again to prevent pollution to the environment. The noise during the exhaust process is significantly reduced, improving the quality of the working environment. Finally, the gas after flame extinguishing and silencing treatment is discharged through the outlet.

[0006] Preferably, a first chamber is arranged on the right side of the interior of the muffler chamber, symmetrical resonance partition plates are fixedly connected to the left and right sides of the first chamber through the muffler chamber, a second chamber is arranged on the left side of the interior of the muffler chamber, the symmetrical resonance partition plates are fixedly connected to the second air inlet pipe at the top and bottom, the right end of the second air inlet pipe is arranged in the first chamber, the left side of the second air inlet pipe is arranged in the second chamber, the first air inlet pipe is fixedly connected to the front and back of the right side of the muffler chamber, the right end of the first air inlet pipe is arranged in the right flame extinguishing chamber, the left end of the first air inlet pipe is arranged in the second chamber, and a honeycomb flame extinguishing pipe is arranged on the middle surface of the first air inlet pipe The sound hole is fixedly connected to the left side of the silencing chamber, an outlet pipe is fixedly connected in the middle of the second resonant partition board, a first chamber is arranged at the right end of the outlet pipe, and a left mesh plate is fixedly connected to the left end of the outlet pipe. The gas enters into the first air inlet pipe, and the noise generated by the gas flow is reduced through the honeycomb silencer holes. The gas is then transported to the second chamber, and hits the second resonant partition board to reduce the noise. The gas is then transported to the first chamber through the second air inlet pipe, and the noise is reduced again through the symmetrical resonant partition board. The noise during the exhaust process is significantly reduced, thereby improving the quality of the working environment.

[0007] Preferably, an air outlet is provided at the front left side of the muffler body, and the gas after flame extinguishing and silencing treatment is discharged through the air outlet. A first resonance partition board is fixedly connected to the right side of the inside of the muffler body, and by installing the first resonance partition board, the noise of the air entering the air inlet is reduced.

[0008] Preferably, a sound insulation board is fixedly connected to the inner layer of the muffler body. By installing the sound insulation board, the noise during the exhaust process is significantly reduced, thereby improving the quality of the working environment.

[0009] Compared with the related art, the flame suppressor and muffler for engine exhaust provided by the utility model has the following beneficial effects:

[0010] 1. The utility model provides a flame suppressor and silencer for engine exhaust. By installing the flame suppressor and providing a mesh plate in the flame suppressor chamber, the flame in the exhaust gas can be effectively eliminated to prevent pollution to the environment.

[0011] 2. The utility model provides a flame suppressor silencer for engine exhaust. By installing the silencer, the noise during the exhaust process can be significantly reduced, thereby improving the quality of the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic structural diagram of a preferred embodiment of the flame suppressor and muffler for engine exhaust provided by the utility model;

[0013] Figure 2 for Figure 1 The schematic diagram of the structure inside the flame suppressor and silencer shown;

[0014] Figure 3 for Figure 2 The schematic diagram of the structure of the anechoic chamber shown;

[0015] Figure 4 for Figure 1 Schematic diagram of the structure of the muffler body shown.

[0016] Numbers in the figure: 1. silencer body; 2. air inlet; 3. air outlet; 4. flame extinguishing chamber; 5. silencer chamber; 6. mesh plate; 7. first resonance partition board; 8. first air inlet pipe; 9. first chamber; 10. second chamber; 11. honeycomb silencer hole; 12. second air inlet pipe; 13. air outlet pipe; 14. second resonance partition board; 15. symmetrical resonance partition board; 16. sound insulation board. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0019] See also Figures 1 to 4The embodiment of the utility model provides a flame suppressor muffler for engine exhaust, the flame suppressor muffler for engine exhaust comprising: a muffler body 1, flame suppressor chambers 4 are arranged on both sides of the muffler body 1, a mesh plate 6 is fixedly connected in the middle of the flame suppressor chamber 4, a muffler chamber 5 is arranged in the middle of the muffler body 1, an air inlet 2 is arranged on the right side of the muffler body 1, the right end of the air inlet 2 is connected to the exhaust port of the engine, the exhaust gas of the engine enters the flame suppressor chamber 4 through the air inlet 2, and passes through the mesh plate 6. Since there are many small holes distributed on the surface of the mesh plate 6, when the flame or high-temperature gas passes through these small holes, their flow path is first restricted by these channels. Since the flow channel size is small, the gas molecules will collide with the surface of the mesh plate 6 during the flow process. This collision will not only lead to the conversion of fluid energy and the dissipation of part of the kinetic energy, but also change the shape and temperature of the flame. In addition, the fluid passes through the mesh. The complex vortex formed when the plate 6 is formed helps to disperse energy, thereby reducing noise and flame energy. This vortex effect not only helps to reduce flame intensity, but also changes the propagation direction of the flame, so that the flame is reflected and diffused multiple times in the mesh plate 6, increasing the contact area between the flame and the mesh plate 6, thereby enhancing the heat dissipation effect, and then the gas enters the first air inlet pipe 8, and the noise generated by the gas flow is reduced through the honeycomb silencer holes 11, and then it is transported to the second chamber 10, and hits the second resonant partition board 14 to reduce noise. The gas is transported to the first chamber 9 through the second air inlet pipe 12, and the noise is reduced again through the symmetrical resonant partition board 15, and then it is input into the left flame extinguishing chamber 4 through the outlet pipe 13, and flame extinguishing is performed again to prevent pollution to the environment. The noise during the exhaust process is significantly reduced, improving the quality of the working environment, and finally the gas after flame extinguishing and silencing treatment is discharged through the outlet 3.

[0020] In the embodiments of the present invention, please refer to Figure 2 and Figure 3A first chamber 9 is arranged on the right side of the muffler chamber 5, and symmetrical resonance partition plates 15 are fixedly connected to the left and right sides of the first chamber 9 through the muffler chamber 5. A second chamber 10 is arranged on the left side of the muffler chamber 5, and the symmetrical resonance partition plates 15 are fixedly connected to the second air intake pipe 12 at the top and bottom. The right end of the second air intake pipe 12 is arranged inside the first chamber 9, and the left side of the second air intake pipe 12 is arranged inside the second chamber 10. The first air intake pipe 8 is fixedly connected to the front and back of the right side of the muffler chamber 5, the right end of the first air intake pipe 8 is arranged inside the right flame extinguishing chamber 4, and the left end of the first air intake pipe 8 is arranged inside the second chamber 10. A honeycomb sound-absorbing material is arranged on the middle surface of the first air intake pipe 8 Hole 11, a second resonance partition board 14 is fixedly connected to the left side of the silencing chamber 5, an outlet pipe 13 is fixedly connected in the middle of the second resonance partition board 14, a first chamber 9 is arranged at the right end of the outlet pipe 13, and a left mesh plate 6 is fixedly connected to the left end of the outlet pipe 13. The gas enters the first air inlet pipe 8, and the noise generated by the gas flow is reduced through the honeycomb silencer hole 11. The gas is then transported to the second chamber 10, and hits the second resonance partition board 14 to reduce the noise. The gas is then transported to the first chamber 9 through the second air inlet pipe 12, and the noise is reduced again through the symmetrical resonance partition board 15. The noise during the exhaust process is significantly reduced, thereby improving the quality of the working environment.

[0021] In the embodiments of the present invention, please refer to Figure 1 and Figure 2 An air outlet 3 is arranged at the front left side of the muffler main body 1, and the gas after flame extinguishing and silencing treatment is discharged through the air outlet 3. A first resonance partition board 7 is fixedly connected to the right side of the muffler main body 1. By installing the first resonance partition board 7, the noise of the air entering the air inlet 2 is reduced.

[0022] In the embodiments of the present invention, please refer to Figure 1 and Figure 4 A sound insulation board 16 is fixedly connected to the inner layer of the muffler body 1. By installing the sound insulation board 16, the noise during the exhaust process is significantly reduced, thereby improving the quality of the working environment.

[0023] The working principle of the flame suppressor silencer for engine exhaust provided by the utility model is as follows: the exhaust gas of the engine enters the flame suppressor chamber 4 through the air inlet 2 and passes through the mesh plate 6. Since there are many small holes distributed on the surface of the mesh plate 6, when the flame or high-temperature gas passes through these small holes, their flow path is first restricted by these channels. Since the flow channel size is small, the gas molecules will collide with the surface of the mesh plate 6 during the flow process. This collision will not only lead to the conversion of fluid energy and the dissipation of part of the kinetic energy, but also change the shape and temperature of the flame. In addition, the complex vortex formed when the fluid passes through the mesh plate 6 helps to disperse the energy, thereby reducing noise and flame energy. This vortex effect not only helps to reduce the flame intensity, but also can change the flame The propagation direction causes the flame to be reflected and diffused multiple times in the mesh plate 6, increasing the contact area between the flame and the mesh plate 6, thereby enhancing the heat dissipation effect, and then the gas enters the first air inlet pipe 8, and reduces the noise generated by the gas flow through the honeycomb silencer holes 11, and then is transported to the second chamber 10, hits the second resonant partition board 14 to reduce the noise, and transports the gas to the first chamber 9 through the second air inlet pipe 12, and reduces the noise again through the symmetrical resonant partition board 15, and then is input into the left flame extinguishing chamber 4 through the outlet pipe 13, and flame extinguishing is performed again to prevent pollution to the environment. The noise during the exhaust process is significantly reduced, improving the quality of the working environment, and finally the gas after flame extinguishing and silencing treatment is discharged through the outlet 3.

[0024] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A flame suppressor and silencer for engine exhaust, characterized in that: include: Muffler body (1); A mesh plate (6), wherein a flame extinguishing chamber (4) is arranged on both left and right sides of the muffler body (1), and a mesh plate (6) is fixedly connected to the middle of the flame extinguishing chamber (4); A muffler chamber (5), wherein a muffler chamber (5) is arranged in the middle of the muffler body (1); An air inlet (2), wherein the right side of the muffler body (1) is provided with an air inlet (2); the right end of the air inlet (2) is connected to the exhaust port of the engine.

2. The flame extinguisher and silencer for engine exhaust according to claim 1, characterized in that: A first chamber (9) is arranged on the right side inside the silencing chamber (5), and symmetrical resonance partition boards (15) are fixedly connected to the left and right sides of the first chamber (9) through the silencing chamber (5), and a second chamber (10) is arranged on the left side inside the silencing chamber (5).

3. The flame extinguisher and muffler for engine exhaust according to claim 2, characterized in that: The symmetrical resonance partition wall plate (15) is fixedly connected to a second air intake pipe (12) at the top and bottom, the right end of the second air intake pipe (12) is arranged inside the first chamber (9), and the left end of the second air intake pipe (12) is arranged inside the second chamber (10).

4. The flame extinguisher and silencer for engine exhaust according to claim 1, characterized in that: The first air intake pipe (8) is fixedly connected to the front and rear of the right side of the muffler chamber (5); the right end of the first air intake pipe (8) is arranged inside the right flame extinguishing chamber (4); and the left end of the first air intake pipe (8) is arranged inside the second chamber (10).

5. The flame extinguisher and silencer for engine exhaust according to claim 4, characterized in that: The middle surface of the first air inlet pipe (8) is provided with a honeycomb sound-absorbing hole (11).

6. The flame extinguisher and silencer for engine exhaust according to claim 1, characterized in that: A second resonance partition board (14) is fixedly connected to the left side of the silencing chamber (5); an air outlet pipe (13) is fixedly connected in the middle of the second resonance partition board (14); a first chamber (9) is provided at the right end of the air outlet pipe (13); and a left mesh plate (6) is fixedly connected to the left end of the air outlet pipe (13).

7. The flame extinguisher and muffler for engine exhaust according to claim 1, characterized in that: An air outlet (3) is arranged at the front left side of the muffler body (1), and a first resonance partition board (7) is fixedly connected to the right side inside the muffler body (1).

8. The flame extinguisher and silencer for engine exhaust according to claim 1, characterized in that: A sound insulation board (16) is fixedly connected to the inner layer of the muffler body (1).

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