CN218816605U

CN218816605U - Silencer with metal catalyst

Info

Publication number: CN218816605U
Application number: CN202223219858.6U
Authority: CN
Inventors: 钱薇; 张浩哲; 赵华; 吴涛; 杨路明
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-04-07
Anticipated expiration: 2032-12-02

Abstract

The utility model discloses a take silencer of metal catalyst relates to car silencer field, which comprises a housin, separate third cavity, first cavity, second cavity from a left side to the right side in proper order through the baffle in the casing, be provided with the conduction pipe of intercommunication third cavity and second cavity in the casing, it has the inner fin to be annular interval distribution in the conduction pipe, the surface of inner fin is provided with the catalyst piece, be provided with intercommunication third cavity and external outlet duct in the casing, the third cavity is provided with the multiunit shutter plate between the mouth of pipe of outlet duct and the mouth of pipe of conduction pipe, be provided with the catalyst piece on the shutter plate equally. The utility model discloses an utilize the multistage dissipation structure of silencer, make waste gas and multistage cavity's inner wall and pipe wall produce the looks mutual friction, then through being the catalyst piece that the annular distributes in the pipeline, waste gas is decomposed under the effect of catalyst, produces harmless gas at last and is discharged the silencer.

Description

Silencer with metal catalyst

Technical Field

The utility model relates to an automobile silencer field specifically is a take silencer of metal catalyst.

Background

Industrial waste gases such as dimethylamine, triethylamine and the like have great influence on the environment and can also cause great harm to human health, and if the industrial waste gases are not properly treated, the industrial waste gases can cause great harm to the surrounding environment and resident people, so that the industrial waste gases of dimethylamine are carefully treated.

The other treatment mode of industrial waste gases such as dimethylamine, triethylamine and the like in the prior art adopts rare earth metal oxide with catalytic activity to directly oxidize the dimethylamine in the waste gases into nitrogen without generating nitrogen oxides.

Aiming at the prior art, the existing mode of treating the waste gas through the washing tower can generate more waste liquid, the subsequent waste liquid treatment process is difficult, the impact force is too large when the waste gas passes through the device in the mode of directly converting the waste gas by using the rare earth metal oxide as the catalyst, and a catalyst layer in the device is easily stripped after being impacted by the waste gas for a long time.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a take silencer of metal catalyst to solve current device of taking the metal catalyst after long-time catalytic treatment waste gas, the easy technical problem who breaks away from because of the impact of waste gas appears the catalyst layer.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a take silencer of metal catalyst, includes the casing, separate third chamber, first chamber, second chamber from a left side to the right side in proper order through the baffle in the casing, be provided with the conduction pipe of intercommunication third chamber and second chamber in the casing, it has the inner fin to be annular interval distribution in the conduction pipe, the surface of inner fin is provided with the catalyst piece, be provided with intercommunication third chamber and external outlet duct in the casing, the third chamber is provided with the multiunit shutter plate between the mouth of pipe of outlet duct and the mouth of pipe of conduction pipe, be provided with the catalyst piece on the shutter plate equally.

By adopting the technical scheme, the multistage energy dissipation structure of the silencer is utilized, so that the waste gas and the inner wall and the pipe wall of the multistage cavity generate mutual friction, then the waste gas is decomposed under the action of the catalyst through the catalyst sheets which are distributed in the pipeline in an annular manner, and finally the generated harmless gas is discharged out of the silencer.

The utility model discloses further set up to, be provided with intercommunication second cavity and external intake pipe in the casing, first cavity and third cavity are still passed simultaneously to the intake pipe.

Through adopting above-mentioned technical scheme, through the intake pipe with waste gas leading-in casing in.

The utility model discloses further set up to, the part that the intake pipe is located first cavity gathers and has the aperture that is used for ventilating.

Through adopting above-mentioned technical scheme, waste gas can be through the aperture tentatively distribute to first cavity in, make the energy of waste gas by tentatively decaying.

The utility model discloses further set up as, be provided with the helmholtz resonator in the direction that the inherent second cavity of casing is opposite to the intake pipe.

Through adopting above-mentioned technical scheme, waste gas further decay of energy after getting into the second cavity, when continuing to move and get into helmholtz resonator, the energy of waste gas is further attenuated.

The utility model discloses further set up to, the shutter plate is provided with the multiunit in the third chamber, all is provided with the tripe opposite in orientation on the adjacent shutter plate of multiunit, the catalyst piece is then fixed on the tripe.

Through adopting above-mentioned technical scheme, the tripe that sets up on the contrary can make waste gas can be better when passing through multiunit shutter plate contact with the catalyst piece.

The utility model discloses further set up to, the axis of Helmholtz resonator coincides with the intake pipe mutually.

Through adopting above-mentioned technical scheme, make the shock wave of waste gas can be accurate get into in the Helmholtz resonator.

The utility model discloses further set up to, the external part of outlet duct intercommunication and the external part of intake pipe intercommunication are located the both sides of casing.

Through adopting above-mentioned technical scheme, be convenient for the connection of the outside gas pipeline of casing.

To sum up, the utility model discloses mainly have following beneficial effect:

1. the utility model utilizes the multi-stage energy dissipation structure of the silencer to make the waste gas and the inner wall and the pipe wall of the multi-stage chamber generate mutual friction, then the waste gas is decomposed under the action of the catalyst through the catalyst sheets which are distributed in the pipeline in an annular shape, and finally the produced harmless gas is discharged out of the silencer;

2. the utility model discloses a set up the multiunit shutter plate, make the tripe orientation on the adjacent shutter plate opposite, adhesion catalyst on the tripe of shutter plate makes the air current at the in-process through the multiunit shutter plate and the abundant contact of catalyst, and then reaches better purification effect to waste gas.

Drawings

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

fig. 2 is a front interior perspective view of the present invention;

fig. 3 is an enlarged view of a in fig. 2 according to the present invention;

fig. 4 is a rear inner perspective view of the present invention.

In the figure: 1. a housing; 2. an air inlet pipe; 3. an air outlet pipe; 4. a Helmholtz resonator; 5. a conduction pipe; 6. a first chamber; 7. a second chamber; 8. a third chamber; 9. an inner fin; 10. a catalyst sheet; 11. a louver board is provided.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

Next, an embodiment of the present invention will be described with reference to the overall structure thereof.

The utility model provides a silencer of tape metal catalyst, as shown in fig. 1-4, including casing 1, divide into third chamber 8 from a left side to the right side in proper order through the baffle in the casing 1, first chamber 6, second chamber 7, be provided with conduction pipe 5 of intercommunication third chamber 8 and second chamber 7 in the casing 1, it has inner fin 9 to be annular interval distribution in the conduction pipe 5, inner fin's 9 surface is provided with catalyst piece 10, be provided with intercommunication third chamber 8 and external outlet duct 3 in the casing 1, third chamber 8 is provided with multiunit shutter 11 between the mouth of pipe of outlet duct 3 and the mouth of pipe of conduction pipe 5, be provided with catalyst piece 10 on the shutter 11 equally, specifically, the principal ingredients of waste gas is dimethylamine, and catalyst piece 10 is the rare earth metal oxide that has catalytic activity, can be with the direct oxidation of dimethylamine in the waste gas to nitrogen gas, do not produce nitrogen oxide.

On the basis of the structure, in this embodiment, be provided with the intake pipe 2 that communicates second chamber 7 and external in the casing 1, intake pipe 2 still passes first chamber 6 and third chamber 8 simultaneously, lead to the casing 1 with waste gas through intake pipe 2 in, wherein the part that intake pipe 2 is located first chamber has the aperture that is used for ventilating densely, waste gas can pass through the aperture and tentatively distribute to first chamber 6 in, make the energy of waste gas by preliminary decay, be provided with helmholtz resonator 4 in casing 1 on the direction that second chamber 7 is relative to intake pipe 2, waste gas further decay of energy after getting into second chamber 7, when continuing to move and getting into helmholtz resonator 4, the energy of waste gas is further attenuated, make waste gas energy sharp when passing through conduction pipe 5, avoid appearing the long-term use and cause too much dangerous the condition to catalyst piece 10 and take place.

On the basis of the above structure, in this embodiment, the louver boards 11 are provided with a plurality of sets in the third chamber 8, specifically, the louver boards 11 are provided with four blocks in total, all are provided with the louver boards with opposite directions on the adjacent louver boards 11 of the plurality of sets, the catalyst sheet 10 is fixed on the louver boards, and the louver boards that are arranged oppositely can make the exhaust gas better contact with the catalyst sheet 10 when passing through the louver boards 11 of the plurality of sets.

In addition to the above structure, in the present embodiment, the axis of the helmholtz resonator 4 coincides with the intake pipe 2, so that the shock wave of the exhaust gas can accurately enter the helmholtz resonator 4.

The embodiment also provides that the part of the air outlet pipe 3 communicated with the outside and the part of the air inlet pipe 2 communicated with the outside are positioned at two sides of the shell 1, so that the connection of an external gas pipeline of the shell 1 is facilitated.

The utility model creatively arranges the catalyst piece at the proper position in the waste gas energy attenuation structure, thereby avoiding the defect that the catalyst layer is easy to separate due to the impact of waste gas after the waste gas is catalyzed and treated for a long time by the existing device with the metal catalyst; in this scheme, through the multistage dissipation structure who utilizes the silencer, make the inner wall and the pipe wall of waste gas and multistage cavity produce the looks mutual friction, then through the catalyst piece that is the annular distribution in the pipeline, waste gas is decomposed under the effect of catalyst, produces harmless gas at last and is discharged the silencer.

While embodiments of the invention have been illustrated and described, it is not intended to limit the invention to the exact construction and operation illustrated and described, and that various other features, structures, materials, or characteristics may be substituted for those illustrated and described without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a take silencer of metal catalyst, includes casing (1), divide into third chamber (8), first chamber (6), second chamber (7) from a left side to the right side in proper order through the baffle in casing (1), its characterized in that: be provided with conduction tube (5) of intercommunication third chamber (8) and second chamber (7) in casing (1), it has inner fin (9) to be annular interval distribution in conduction tube (5), the surface of inner fin (9) is provided with catalyst piece (10), be provided with intercommunication third chamber (8) and external outlet duct (3) in casing (1), third chamber (8) are provided with multiunit shutter plate (11) between the mouth of pipe of outlet duct (3) and the mouth of pipe of conduction tube (5), be provided with catalyst piece (10) on shutter plate (11) equally.

2. The muffler with metal catalyst according to claim 1, characterized in that: an air inlet pipe (2) communicated with the second chamber (7) and the outside is arranged in the shell (1), and the air inlet pipe (2) simultaneously penetrates through the first chamber (6) and the third chamber (8).

3. The muffler with metal catalyst of claim 2, wherein: the part of the air inlet pipe (2) positioned in the first chamber is densely provided with small holes for ventilation.

4. The muffler with metal catalyst according to claim 1, characterized in that: a Helmholtz resonator (4) is arranged in the shell (1) in the direction of the second cavity (7) opposite to the air inlet pipe (2).

5. The muffler with metal catalyst according to claim 1, characterized in that: a plurality of groups of louvers (11) are arranged in the third chamber (8), louvers with opposite directions are arranged on a plurality of groups of adjacent louvers (11), and the catalyst sheets (10) are fixed on the louvers.

6. The muffler with metal catalyst according to claim 4, characterized in that: the axis of the Helmholtz resonator (4) is coincident with that of the air inlet pipe (2).

7. The muffler with metal catalyst of claim 2, wherein: the part of the air outlet pipe (3) communicated with the outside and the part of the air inlet pipe (2) communicated with the outside are positioned on two sides of the shell (1).