Exhaust silencer of marine diesel engine

Abstract

The utility model belongs to the field of silencers, particularly relates to an exhaust silencer of a marine diesel engine, and aims to solve the problems that when an existing marine diesel engine exhausts air, only the outside of a catalytic reaction tube can be conveniently silenced, and the inside of the tube can not be directly silenced, so that the silencing effect is poor, and the application effect is greatly reduced. According to the scheme, the silencer comprises a silencing pot, a connecting ring is arranged on one side of the silencing pot, one side of the connecting ring communicates with an exhaust pipe, the end, away from the connecting ring, of the silencing pot communicates with an air inlet pipe, and flange rings are fixedly arranged at one end of the air inlet pipe and one end of the exhaust pipe correspondingly. When the exhaust gas purifier is used, solid particles in exhaust gas can be filtered, the particles are prevented from damaging follow-up assemblies, meanwhile, the silencing effect can be achieved, harmful gas in the exhaust gas can be adsorbed and converted to a certain degree, the purification function is achieved, and meanwhile the filter screen and the foamed ceramic filter can be conveniently mounted and dismounted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the muffler technical field especially, relates to a marine diesel engine exhaust muffler. BACKGROUND

[0002] The atmospheric pollution caused by the ship mainly comes from the emission tail gas pollution of the marine diesel engine, along with the implementation of the more stringent emission standard of the international maritime organization, and the marine diesel engine tail gas emission purification treatment system has become the inevitable choice,

[0003] Through the search, the patent with the authorized announcement number CN217681928U proposes a marine diesel engine exhaust purification muffler. The technical scheme has the following problems:

[0004] The existing, because the marine diesel engine is only convenient for carrying out the sound attenuation to the outside of the catalytic reaction tube when exhausting, and the inside of the tube cannot directly attenuate the gas, and further, the sound attenuation effect is poor, greatly reduces the application effect;

[0005] In view of the above problem, the utility model file proposes a marine diesel engine exhaust muffler. INVENTION CONTENTS

[0006] The utility model provides a marine diesel engine exhaust muffler, solves the existing technology in the existing technology because the marine diesel engine is only convenient for carrying out the sound attenuation to the outside of the catalytic reaction tube when exhausting, and the inside of the tube cannot directly attenuate the gas, and further, the sound attenuation effect is poor, greatly reduces the application effect disadvantage.

[0007] The utility model provides the following technical scheme:

[0008] A marine diesel engine exhaust muffler, comprising:

[0009] The muffler barrel is provided with a connecting ring on one side, the connecting ring is communicated with an exhaust pipe on one side, the muffler barrel is communicated with an air inlet pipe on the end away from the connecting ring, and the air inlet pipe and the exhaust pipe are both fixedly provided with a flange ring on one end.

[0010] The sound attenuation assembly is arranged in the inside of the muffler barrel and is used for attenuating the gas exhausted by the marine diesel engine.

[0011] In a possible design, the sound attenuation assembly comprises a triangular cylinder, a first triangular support, a second triangular support, a connecting rod, a foam ceramic filter and a filter screen, the triangular cylinder is fixedly arranged on one side of the connecting ring, the second triangular support and the two first triangular supports are arranged in the inside of the triangular cylinder, and the second triangular support and the two first triangular supports are connected and fixed through a plurality of connecting rods.

[0012] In a possible design, the silencing assembly comprises a triangular cylinder, a first triangular frame, a second triangular frame, connecting rods, a foam ceramic filter and a filter screen, the triangular cylinder is fixedly arranged on one side of a connecting ring, the second triangular frame and the two first triangular frames are arranged inside the triangular cylinder, and the second triangular frame and the two first triangular frames are fixedly connected through the connecting rods.

[0013] In a possible design, one side of the second triangular frame is fixedly provided with a fixing frame, one side of the fixing frame is provided with three magnets, one side of the triangular cylinder is provided with three iron blocks that are attracted to the magnets, and the outer side of the fixing frame is fixedly provided with two handles.

[0014] In a possible design, one side of the connecting ring is fixedly provided with a threaded ring, the inner wall of one end of the silencing cylinder is provided with a threaded groove for threadedly connecting the threaded ring, and one side of the connecting ring is provided with a sealing gasket that is tightly attached to one side of the silencing cylinder.

[0015] In a possible design, one side of the connecting ring is fixedly provided with a threaded ring, the inner wall of one end of the silencing cylinder is provided with a threaded groove for threadedly connecting the threaded ring, and one side of the connecting ring is provided with a sealing gasket that is tightly attached to one side of the silencing cylinder.

[0016] In a possible design, the outer wall of the glass fiber layer is fixedly provided with a rock wool layer.

[0017] In use, the exhaust gas generated by the ship diesel engine enters the silencing cylinder through the air inlet pipe, and the exhaust gas is treated by the silencing assembly inside the silencing cylinder to achieve silencing and purification, and the treated exhaust gas is discharged through the exhaust pipe. The flange ring at one end of the air inlet pipe and the exhaust pipe facilitates the connection of different gas pipelines and the circulation of gas. After the exhaust gas enters the silencing cylinder, it first passes through the filter screen, which is clamped inside the second triangular frame, to filter the solid particles in the exhaust gas and prevent damage to the subsequent components. The exhaust gas then passes through the foam ceramic filter, which is clamped inside the first triangular frame. The foam ceramic filter has a porous structure. When the exhaust gas passes through, sound waves are reflected, interfered and dissipated in the pores, thereby achieving the effect of silencing. At the same time, the foam ceramic filter can also adsorb and convert harmful gases in the exhaust gas to a certain extent, achieving the function of purification. The first triangular frame and the second triangular frame ensure that the filter screen and the foam ceramic filter can be stably fixed inside the silencing cylinder, while providing a necessary passage for the exhaust gas to pass through.

[0018] Then, the connecting ring is connected with the exhaust pipe in communication, the other side is connected with the muffler through the thread ring and the thread groove, and the exhaust gas can smoothly enter the exhaust pipe from the muffler, the sealing gasket is arranged between the connecting ring and the muffler, additional sealing effect is provided, exhaust gas leakage is prevented, the fixing frame is fixed on one side of the second triangular frame and is used for supporting and fixing the filter screen, the magnet and the iron block are arranged, the second triangular frame and the filter screen thereon can be conveniently installed and dismounted, maintenance and replacement are facilitated, synchronous dismounting of the muffling assembly is achieved when the connecting ring is dismounted, the glass fiber layer is sleeved outside the muffler, good heat insulation performance is achieved, the influence of heat generated in the exhaust gas transmission process on the outside of the muffler is reduced, the rock wool layer is arranged outside the glass fiber layer, heat insulation effect is further enhanced, and a certain sound insulation function is provided, and the influence of noise on the surrounding environment is reduced.

[0019] In the utility model, the solid particles in the exhaust gas can be filtered, the particles are prevented from damaging the subsequent components, the sound elimination effect can be realized, the harmful gas in the exhaust gas can be adsorbed and converted to a certain extent, the purification function is realized, the filter screen and the foam ceramic filter can be conveniently installed and dismounted, maintenance and replacement are facilitated, and the synchronous dismounting of the muffling assembly is achieved.

[0020] In the utility model, the solid particles in the exhaust gas can be filtered, the particles are prevented from damaging the subsequent components, the sound elimination effect can be realized, the harmful gas in the exhaust gas can be adsorbed and converted to a certain extent, the purification function is realized, the filter screen and the foam ceramic filter can be conveniently installed and dismounted, maintenance and replacement are facilitated, and the synchronous dismounting of the muffling assembly is achieved.

[0021] In the utility model, the solid particles in the exhaust gas can be filtered, the particles are prevented from damaging the subsequent components, the sound elimination effect can be realized, the harmful gas in the exhaust gas can be adsorbed and converted to a certain extent, the purification function is realized, the filter screen and the foam ceramic filter can be conveniently installed and dismounted, maintenance and replacement are facilitated, and the synchronous dismounting of the muffling assembly is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a front view structural schematic diagram of a ship diesel engine exhaust muffler provided in the utility model embodiment;

[0023] Figure 2 It is a connecting ring split state structure schematic diagram of a ship diesel engine exhaust muffler provided in the utility model embodiment;

[0024] Figure 3 It is a muffling assembly split state structure schematic diagram of a ship diesel engine exhaust muffler provided in the utility model embodiment;

[0025] Figure 4The utility model discloses a kind of muffler components split state structure schematic diagram two of marine diesel engine exhaust muffler.

[0026] Reference signs:

[0027] 1, muffler cylinder;2, intake pipe;3, exhaust pipe;4, flange ring;5, connecting ring;6, threaded ring;7, threaded groove;8, gasket;9, triangular cylinder;10, first triangular frame;11, second triangular frame;12, connecting rod;13, foam ceramic filter;14, filter screen;15, handle;16, fixing frame;17, magnet;18, iron block;19, rock wool layer;20, glass fiber layer. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0029] Embodiment 1

[0030] Please refer to Figures 1-4 A muffler, comprising:

[0031] Muffler cylinder 1, one side of muffler cylinder 1 is provided with connecting ring 5, one side of connecting ring 5 is communicated with exhaust pipe 3, one end of muffler cylinder 1 away from connecting ring 5 is communicated with intake pipe 2, exhaust gas generated by marine diesel engine enters muffler cylinder 1 through intake pipe 2, and exhaust gas is treated in muffler cylinder 1 by silencing assembly, so that silencing and purification are realized, and treated exhaust gas is discharged through exhaust pipe 3. One end of intake pipe 2 and exhaust pipe 3 is fixedly provided with flange ring 4, and flange ring 4 at one end of intake pipe 2 and exhaust pipe 3 is convenient for connecting different gas pipelines, so as to facilitate the circulation of gas.

[0032] Silencing assembly, the silencing assembly is arranged in the interior of muffler cylinder 1 and is used for silencing the gas discharged by marine diesel engine, and the silencing assembly comprises triangular cylinder 9, first triangular frame 10, second triangular frame 11, connecting rod 12, foam ceramic filter 13 and filter screen 14, triangular cylinder 9 is fixedly arranged on one side of connecting ring 5, second triangular frame 11 and two first triangular frames 10 are arranged in the interior of triangular cylinder 9, and second triangular frame 11 and the two first triangular frames 10 are connected and fixed through a plurality of connecting rods 12, through second triangular frame 11 and first triangular frame 10, filter screen 14 and foam ceramic filter 13 are conveniently installed, and are also conveniently disassembled and replaced, and the connection and fixation of connecting rod 12 not only enhance stability, but also can realize integrated effect, and improve convenience.

[0033] The filter screen 14 is clamped and installed in the interior of the second triangular frame 11, and is used for filtering particles in the gas. The filter screen 14 is used for filtering solid particles in the exhaust gas, so as to prevent the solid particles from damaging subsequent components. Each ceramic foam filter 13 is clamped and installed in the interior of the first triangular frame 10, and is used for purifying and silencing the gas. The ceramic foam filter 13 has a porous structure. When the exhaust gas passes through the ceramic foam filter 13, sound waves are reflected, interfered and dissipated in the pores, so that the silencing effect is achieved. Meanwhile, the ceramic foam filter 13 can also adsorb and convert harmful gases in the exhaust gas to a certain extent, so that the purifying function is achieved.

[0034] A fixed frame 16 is fixedly arranged on one side of the second triangular frame 11. Three magnets 17 are arranged on one side of the fixed frame 16. Three iron blocks 18 that are attracted to the magnets 17 are arranged on one side of the triangular cylinder 9. Two handles 15 are fixedly arranged on the outer side of the fixed frame 16. The fixed frame 16 is fixed on one side of the second triangular frame 11, and is used for supporting and fixing the filter screen 14. The arrangement of the magnets 17 and the iron blocks 18 enables the second triangular frame 11 and the filter screen 14 thereon to be conveniently installed and dismounted, so that the maintenance and replacement are facilitated. The handles 15 facilitate the pushing and pulling of the fixed frame 16, so that the convenience of installation and dismounting is improved.

[0035] The application can be applied to the field of silencers, and can also be applied to other fields applicable to the application.

[0036] Embodiment 2

[0037] Reference Figures 1-4 On the basis of Embodiment 1: a ship diesel engine exhaust silencer applied to the field of silencers;

[0038] A threaded ring 6 is fixedly arranged on one side of the connecting ring 5. A threaded groove 7 for threadedly connecting the threaded ring 6 is formed in the inner wall of one end of the silencing cylinder 1. A sealing gasket 8 that tightly abuts one side of the silencing cylinder 1 is arranged on one side of the connecting ring 5. The connecting ring 5 is in communication with the exhaust pipe 3, and the other side of the connecting ring 5 is tightly connected with the silencing cylinder 1 through the threaded ring 6 and the threaded groove 7, so as to ensure that the exhaust gas can smoothly enter the exhaust pipe 3 from the silencing cylinder 1. The sealing gasket 8 is arranged between the connecting ring 5 and the silencing cylinder 1, so as to provide an additional sealing effect and prevent the exhaust gas from leaking.

[0039] A glass fiber layer 20 is fixedly sleeved on the outer side of the silencing cylinder 1. The glass fiber layer 20 has good heat insulation performance, and can reduce the influence of heat generated in the transmission process of the exhaust gas on the outside of the silencing cylinder 1.

[0040] A rock wool layer 19 is fixedly arranged on the outer wall of the glass fiber layer 20. The rock wool layer 19 can further enhance the heat insulation effect and provide a certain sound insulation function, so as to reduce the influence of noise on the surrounding environment.

[0041] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application; the embodiments of the present application and the features in the embodiments can be combined with each other without conflict. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A marine diesel engine exhaust silencer, characterised in that, Include: The muffler (1), one side of the muffler (1) is provided with a connecting ring (5), one side of the connecting ring (5) is communicated with the exhaust pipe (3), one end of the muffler (1) away from the connecting ring (5) is communicated with the air inlet pipe (2), one end of the air inlet pipe (2) and the exhaust pipe (3) is fixedly provided with a flange ring (4); The sound attenuation assembly is arranged in the inside of the muffler (1) for muffling the gas discharged by the marine diesel engine.

2. A marine diesel engine exhaust silencer according to claim 1, characterised in that The sound attenuation assembly includes a triangular cylinder (9), a first triangular frame (10), a second triangular frame (11), a connecting rod (12), a foam ceramic filter (13) and a filter screen (14), the triangular cylinder (9) is fixedly arranged on one side of the connecting ring (5), the second triangular frame (11) and the two first triangular frames (10) are arranged in the inside of the triangular cylinder (9), and the second triangular frame (11) and the two first triangular frames (10) are connected and fixed through a plurality of connecting rods (12).

3. A marine diesel engine exhaust silencer according to claim 2, characterised in that The filter screen (14) is clamped and installed in the inside of the second triangular frame (11) and is used for filtering particles in the gas, and each foam ceramic filter (13) is clamped and installed in the inside of the first triangular frame (10) and is used for purifying and muffling the gas.

4. A marine diesel engine exhaust silencer according to claim 3, characterised in that One side of the second triangular frame (11) is fixedly provided with a fixed frame (16), one side of the fixed frame (16) is provided with three magnets (17), one side of the triangular cylinder (9) is provided with three iron blocks (18) which are adsorbed with the magnets (17), and the outer side of the fixed frame (16) is fixedly provided with two handles (15).

5. A marine diesel engine exhaust silencer according to claim 1, characterised in that One side of the connecting ring (5) is fixedly provided with a threaded ring (6), a threaded groove (7) for threadedly connecting the threaded ring (6) is formed in the inner wall of one end of the muffler (1), one side of the connecting ring (5) is provided with a sealing gasket (8) which is tightly combined with one side of the muffler (1).

6. A marine diesel engine exhaust silencer according to claim 1, characterised in that The outer side of the muffler (1) is fixedly sleeved with a glass fiber layer (20).

7. A marine diesel engine exhaust silencer according to claim 6, characterised in that The outer wall of the glass fiber layer (20) is fixedly provided with a rock wool layer (19).

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