CN213177265U

CN213177265U - Silencer

Info

Publication number: CN213177265U
Application number: CN202021655490.6U
Authority: CN
Inventors: 崔勇锋; 林焕平; 苏兆伟; 凌锦权
Original assignee: Oden Fine Chemicals Co ltd
Current assignee: Oden Fine Chemicals Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-05-11
Anticipated expiration: 2030-08-10

Abstract

The utility model discloses a silencer, the power distribution box comprises a box body, a lateral wall of box is provided with a plurality of air inlet, another lateral wall of box is provided with a plurality of gas outlet, be provided with airflow baffle in the box, airflow baffle follows the air inlet extremely the direction range of gas outlet has a plurality ofly, airflow baffle's surface is provided with a plurality of air current through-hole, arbitrary adjacent two among the airflow baffle, one all air current through-hole and another of airflow baffle stagger each other, the utility model provides an effect to the air current speed reduction for finally follow gas velocity of gas outlet department's combustion is lower, and the noise is also littleer, and can be applicable to a plurality of noise sources, has reduced required cost among the industrial production.

Description

Silencer

Technical Field

The utility model relates to a noise eliminator especially relates to a silencer.

Background

In industrial production, a large amount of noise is often generated, which not only causes sound pollution, but also has a certain degree of occupational hazards to production workers, for example, when the propellant is filled, the compressed air is discharged through a valve at high speed to generate very large noise.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a silencer to solve one or more technical problem that exist among the prior art, provide a profitable selection or create the condition at least.

The utility model provides a solution of its technical problem is:

the utility model provides a silencer, includes the box, a lateral wall of box is provided with a plurality of air inlet, another lateral wall of box is provided with a plurality of gas outlet, be provided with airflow baffle in the box, airflow baffle follows the air inlet extremely the direction range of gas outlet has a plurality ofly, airflow baffle's surface is provided with a plurality of air current through-holes, arbitrary adjacent two among the airflow baffle, one all air current through-holes and another airflow baffle's all air current through-holes stagger each other.

The technical scheme at least has the following beneficial effects: a plurality of noise sources accessible pipeline is connected to air inlet department respectively, the high-speed air current that enters into the box from the air inlet blocks through multilayer airflow baffle, the velocity of flow has been reduced, and the air current passes through the back from the airflow hole on an airflow baffle, when passing through next airflow baffle again, because the airflow hole on the next airflow baffle staggers each other with the airflow hole on the last airflow baffle, make next airflow baffle directly block the air current, the stranded air current that gets into from a plurality of air inlet departments disturbs each other and offsets, the effect of slowing down the air current has been improved, make finally the gas velocity of gas of following air outlet department's combustion is lower, the noise is also littleer, and can be applicable to a plurality of noise sources, required cost in the industrial production has been reduced.

As a further improvement of the above technical solution, the airflow through hole is connected with an airflow expansion pipe, and the inner diameter of the airflow expansion pipe gradually increases along the direction from the air inlet to the air outlet. The airflow expansion pipe can expand airflow passing through the airflow through holes, the flow speed of the airflow is reduced, and the airflow flows along the inner wall of the airflow expansion pipe, so that the flow direction of partial airflow can be changed, partial airflow directly enters the airflow through hole of the next airflow baffle after speed reduction, and is remixed and offset with the airflow which is beaten on the airflow baffle and then diffused to the vicinity of the airflow through holes in the process of entering the airflow through holes, the efficiency of the airflow passing through the airflow through holes is improved, the flow speed of the airflow is also reduced, and noise is reduced.

As a further improvement of the technical scheme, a honeycomb interlayer is arranged between the airflow baffle and the inner side wall of the box body. The vibration that the reducible air current baffle of honeycomb interlayer conducted box department for the noise attenuates gradually in the box, further improves the noise reduction of box.

As a further improvement of the technical scheme, a first silencing cotton layer is arranged between the honeycomb interlayer and the inner side wall of the box body. The first silencing cotton layer can fully absorb the vibration conducted to the box body from the honeycomb interlayer, and the noise reduction effect of the box body is further improved.

As a further improvement of the technical scheme, a second silencing cotton layer is arranged on the side wall of the airflow baffle. Because the airflow baffle blocks high-speed airflow and can generate vibration, the second silencing cotton layer can absorb the impact of the airflow part, the vibration of the airflow baffle is effectively reduced, and the airflow can further attenuate the flow speed if impacting on the second silencing cotton layer when the airflow is disturbed in the box body.

As a further improvement of the technical scheme, the air inlet is connected with an air inlet joint. The air inlet joint can be conveniently connected with a peripheral pipeline.

As a further improvement of the technical scheme, the air outlet is connected with an air outlet joint. The air outlet joint can be conveniently connected with an external pipeline.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a schematic view of the overall structure of the present invention.

In the drawings: 100-box body, 110-air inlet joint, 120-air outlet joint, 200-airflow baffle, 210-airflow expansion pipe, 300-honeycomb interlayer and 400-first silencing cotton layer.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

Referring to fig. 1, a muffler includes a case 100, a plurality of air inlets are disposed on a side wall of the case 100, a plurality of air outlets are disposed on another side wall of the case 100, airflow baffles 200 are disposed in the case 100, the airflow baffles 200 are arranged in a plurality along a direction from the air inlets to the air outlets, a plurality of airflow through holes are disposed on a surface of each airflow baffle 200, and in any two adjacent airflow baffles 200, all the airflow through holes of one airflow baffle 200 are staggered with all the airflow through holes of another airflow baffle 200.

It can be known from the above-mentioned, a plurality of noise sources accessible pipeline is connected to air inlet department respectively, the high-speed air current that enters into in box 100 from the air inlet blocks through multilayer airflow baffle 200, its velocity of flow has been reduced, and the air current passes through the back from the air current through-hole on one airflow baffle 200, when passing through next airflow baffle 200 again, because the air current through-hole on next airflow baffle 200 staggers each other with the air current through-hole on the last airflow baffle 200, make next airflow baffle 200 directly block the air current, the stranded air current that gets into from a plurality of air inlets disturbs each other and offsets, the effect of slowing down the air current has been improved, make finally the gas velocity of gas of following the air outlet department is lower, the noise is also littleer, and can be applicable to a plurality of noise sources, required.

In order to further improve the attenuation effect of the air flow in the box 100, the air flow through hole is connected with an air flow expansion pipe 210, and the inner diameter of the air flow expansion pipe 210 gradually increases along the direction from the air inlet to the air outlet. The airflow expansion pipe 210 can expand the airflow passing through the airflow through holes, so that the flow rate of the airflow is reduced, and the airflow flows along the inner wall of the airflow expansion pipe 210, so that the flow direction of part of the airflow can be changed, and the part of the airflow directly enters the airflow through hole of the next airflow baffle 200 after speed reduction, and is remixed and offset with the airflow which hits the airflow baffle 200 and is diffused to the vicinity of the airflow through holes in the process of entering the airflow through holes, so that the efficiency of the airflow passing through the airflow through holes is improved, the flow rate of the airflow is also reduced, and the noise is reduced.

In order to reduce the vibration of the cabinet 100, in the present embodiment, a honeycomb partition 300 is disposed between the airflow baffle 200 and the inner sidewall of the cabinet 100. The connection rib may be provided between the airflow baffle 200 and the box 100, so that the airflow baffle 200 is directly fixed on the inner sidewall of the box 100, and most of the airflow baffle 200 is connected to the box 100 through the honeycomb interlayer 300, and the honeycomb interlayer 300 may reduce the vibration transmitted to the box 100 by the airflow baffle 200, so that the noise is gradually attenuated in the box 100, and the noise reduction effect of the box 100 is further improved.

Further, in order to reduce the vibration of the box 100, a first sound absorption cotton layer 400 is disposed between the honeycomb partition 300 and the inner side wall of the box 100. The first sound absorption cotton layer 400 can sufficiently absorb the vibration transmitted from the honeycomb partition 300 to the box body 100, and further improve the noise reduction effect of the box body 100.

As a further embodiment of the air flow baffle 200, the side walls of said air flow baffle 200 are provided with a second layer of sound damping cotton. Since the airflow baffle 200 blocks the high-speed airflow and generates vibration, the second sound-absorbing cotton layer can absorb the impact of the airflow part, so as to effectively reduce the vibration of the airflow baffle 200, and the airflow can be further attenuated when the airflow is disturbed in the box body 100, such as hitting the second sound-absorbing cotton layer.

In some embodiments, an air intake joint 110 is coupled to the air intake. The external pipes can be conveniently connected through the inlet joint 110.

In some embodiments, an air outlet joint 120 is connected to the air outlet. The external pipeline can be conveniently connected through the air outlet joint 120.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. A muffler characterized by: including box (100), a lateral wall of box (100) is provided with a plurality of air inlet, another lateral wall of box (100) is provided with a plurality of gas outlet, be provided with airflow baffle (200) in box (100), airflow baffle (200) are followed the air inlet extremely the direction of gas outlet is arranged and is had a plurality ofly, airflow baffle (200)'s surface is provided with a plurality of air current through-holes, arbitrary adjacent two in airflow baffle (200), one all air current through-holes and another of airflow baffle (200) all air current through-holes of staggering each other of airflow baffle (200).

2. A muffler according to claim 1, wherein: the air flow through hole is connected with an air flow expansion pipe (210), and the inner diameter of the air flow expansion pipe (210) is gradually increased along the direction from the air inlet to the air outlet.

3. A muffler according to claim 1, wherein: a honeycomb interlayer (300) is arranged between the airflow baffle (200) and the inner side wall of the box body (100).

4. A muffler according to claim 3, wherein: a first sound-absorbing cotton layer (400) is arranged between the honeycomb interlayer (300) and the inner side wall of the box body (100).

5. A muffler according to claim 1, wherein: and a second silencing cotton layer is arranged on the side wall of the airflow baffle (200).

6. A muffler according to claim 1, wherein: the air inlet is connected with an air inlet joint (110).

7. A muffler according to claim 1, wherein: the air outlet is connected with an air outlet joint (120).