CN210378462U

CN210378462U - Silencer

Info

Publication number: CN210378462U
Application number: CN201920879779.7U
Authority: CN
Inventors: 彭育平
Original assignee: Xinshao Jinlong Paper Co Ltd
Current assignee: Xinshao Jinlong Paper Co Ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-04-21
Anticipated expiration: 2029-06-12

Abstract

The utility model relates to a silencer, including the urceolus, cooperate in proper order in the cavity of urceolus to be provided with a cavity section of thick bamboo, a hindering nature section of thick bamboo, a resistance section of thick bamboo, buffering section of thick bamboo, microperforated panel section of thick bamboo that disappears, hindering nature section of thick bamboo intussuseption is filled with sound absorbing material, has evenly seted up many airflow channel in the sound absorbing material, is provided with baffle an in the resistance section of thick bamboo that disappears, evenly is provided with many on the baffle a and crosses the way pipe, and crisscross a plurality of frames that are provided with from top to bottom in the buffering section of thick bamboo that disappears, be provided with the air cushion in the frame, be provided with baffle b in the. The cavity cylinder, the resistive silencing cylinder, the buffering silencing cylinder and the micro-perforated plate silencing cylinder can be poured out for maintenance, so that the service cycle of the silencer can be greatly prolonged, and the silencer is not required to be replaced once a problem occurs in the traditional silencer.

Description

Silencer

Technical Field

The utility model relates to a silencer.

Background

A muffler is a device that prevents sound from propagating while allowing airflow to pass through, and is an important measure for eliminating aerodynamic noise. The silencer is a device for reducing noise, which is arranged on an airflow channel of air power equipment (such as a blower, an air compressor, a boiler exhaust port, a generator, a water pump and other equipment with high noise at an exhaust port) or in an air inlet and exhaust system. The mufflers are of various types, but they can be classified into six main types, namely resistive mufflers, reactive mufflers, resistive composite mufflers, micro-perforated plate mufflers, small-hole mufflers and active mufflers, by studying their muffling mechanisms. However, the six mufflers can only muffle sound with specific frequency, but the existing industrial equipment can not only work in one working state, and the sound frequency generated in the working state of the industrial equipment can be changed, so that the original muffler cannot achieve a good muffling effect.

Disclosure of Invention

The utility model aims at the shortcoming and the problem that exist among the background art improve and innovate, provide a silencer.

The technical scheme of the utility model a construct a silencer, including the urceolus, it sets up a cavity section of thick bamboo, hindering nature noise elimination section of thick bamboo, resistance noise elimination section of thick bamboo, buffering noise elimination section of thick bamboo, micropunch plate noise elimination section of thick bamboo to cooperate in proper order in the cavity of urceolus, hindering nature noise elimination section of thick bamboo intussuseption is filled with sound absorbing material, many airflow channel have evenly been seted up in the sound absorbing material, be provided with baffle an in the resistance noise elimination section of thick bamboo, evenly be provided with many on the baffle a and cross the way pipe, crisscross a plurality of frames that are provided with from top to bottom in the buffering noise elimination section of thick bamboo, be provided with the air cushion in the frame, be provided with baffle b in the micropunch.

In one embodiment, an air inlet pipe is arranged at one end, close to the cavity cylinder, of the outer cylinder of the silencer, a cylinder cover is arranged at the other end of the outer cylinder of the silencer, the cylinder cover and the outer cylinder are in threaded connection, the bottom of the cylinder cover is abutted against the end part of the silencing cylinder with the micro-perforated plate, and an air outlet pipe is communicated with the cylinder cover.

In one embodiment, a pipeline cooler is arranged on an air inlet pipe of the silencer, two layers of wire nets are arranged in the air inlet pipe, a drying agent is filled between the wire nets, and the drying agent is large-particle activated alumina.

In one embodiment, the airflow channel of the silencer is a gourd-shaped channel.

In one embodiment, an air cushion valve is arranged on an air cushion of the silencer.

The utility model has the advantages and beneficial effect:

the cavity barrel, the resistive muffler barrel, the reactive muffler barrel, the buffering muffler barrel, the microperforated panel muffler barrel of this silencer, cooperate the cover to establish in proper order in the urceolus cavity, and the cover is threaded connection with the urceolus, consequently can open the cover after the silencer uses a period and pour the cavity barrel again, the resistive muffler barrel, the reactive muffler barrel, the buffering muffler barrel, the microperforated panel muffler barrel and maintain, just so can prolong the life cycle of silencer greatly, just need not change the silencer in case the problem appears in the traditional silencer.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a perspective view of the cover of the present invention.

Description of the figures:

1. the silencer comprises an outer cylinder, 2, a cavity cylinder, 3, a resistive silencing cylinder, 4, a resistant silencing cylinder, 5, a buffering silencing cylinder, 6, a micro-perforated plate silencing cylinder, 7, sound absorbing materials, 8, an airflow channel, 9, a partition plate a, 10, a passageway pipe, 11, a frame, 12, an air cushion, 13, a partition plate b, 14, a micro-perforated plate silencer, 15, an air inlet pipe, 16, a cylinder cover, 17, an air outlet pipe, 18, a pipeline cooler, 19, an air cushion valve, 20, a wire netting, 21 and a drying agent.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed" or "connected" to another element, it can be directly disposed or connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Specifically, as shown in fig. 1 and fig. 2, a muffler comprises an outer cylinder 1, a cavity cylinder 2, a resistive muffling cylinder 3, a resistive muffling cylinder 4, a buffering muffling cylinder 5 and a micro-perforated plate muffling cylinder 6 are sequentially and cooperatively arranged in a cavity of the outer cylinder 1, sound-absorbing materials 7 are filled in the resistive muffling cylinder 3, a plurality of airflow channels 8 are uniformly arranged in the sound-absorbing materials 7, a partition plate a9 is arranged in the resistive muffling cylinder 4, a plurality of channel passing pipes 10 are uniformly arranged on the partition plate a9, a plurality of frames 11 are vertically staggered in the buffering muffling cylinder 5, an air cushion 12 is arranged in each frame 11, a partition plate b13 is arranged in the micro-perforated plate muffling cylinder 6, a plurality of single-layer micro-perforated plate mufflers 14 are uniformly arranged on the partition plate b13, an air inlet pipe 15 is arranged at one end of the outer cylinder 1 close to the cavity cylinder 2, and a, the cylinder cover 16 is in threaded connection with the outer cylinder 1, the bottom of the cylinder cover can tightly abut against the end part of the micro-perforated plate muffling cylinder 6, and the cylinder cover 16 is communicated with an air outlet pipe 17. The cavity barrel, the resistive muffler barrel, the reactive muffler barrel, the buffering muffler barrel, the microperforated panel muffler barrel of this silencer, cooperate the cover to establish in proper order in the urceolus cavity, and the cover is threaded connection with the urceolus, consequently can open the cover after the silencer uses a period and pour the cavity barrel again, the resistive muffler barrel, the reactive muffler barrel, the buffering muffler barrel, the microperforated panel muffler barrel and maintain, just so can prolong the life cycle of silencer greatly, just need not change the silencer in case the problem appears in the traditional silencer.

Specifically, as shown in fig. 1, be provided with pipeline cooler 18 in the intake pipe 15, be provided with in the intake pipe 15 and be provided with two-layer wire netting 20, it has drier 21 to fill between the wire netting 20, drier 21 is large granule active alumina, and pipeline cooler is used for reducing the temperature of air in the intake pipe to avoid air temperature too high and damage the air cushion, the drier is used for the air in the dry intake pipe, because some air is more moist, must carry out the drying, in order to avoid the silencer to rust under humid environment, the drier adopts large granule active alumina, and the gap that exists between the large granule activity is more and wider, more is favorable to the air smoothness to pass through.

Specifically, as shown in fig. 1, the airflow channel 8 is a gourd-shaped channel, and because the cross section of the gourd-shaped channel has a sudden change, the sound will cause impedance change during transmission to generate reflection and interference of sound energy, so as to reduce the sound energy radiated outwards by the muffler, thereby achieving the purpose of muffling.

Specifically, as shown in fig. 1, an air cushion valve 19 is disposed on the air cushion 12, and the valve is used for inflating and deflating the air cushion.

The utility model discloses the working process:

the gas to be muted enters the air inlet pipe firstly, the active alumina in the air inlet pipe dries the gas, the pipeline cooler cools the gas in the air inlet pipe, and then the gas sequentially enters the cavity barrel, the resistive muffling barrel, the buffer muffling barrel and the micro-perforated plate muffling barrel, when the gas enters the cavity barrel, the impedance of the sudden change part of the cross section of the pipeline changes to generate reflection and interference of sound energy, so that the sound energy radiated outwards by the muffler is reduced to achieve the muffling purpose, when the air enters the resistive muffling barrel, the sound wave is transmitted in the sound absorbing material, the sound energy is converted into heat energy by friction to be radiated, so that the noise transmitted along the pipeline is attenuated along with the distance, thereby achieving the muffling purpose, and the cross section of the gourd-shaped channel has the sudden change part, so that the sound can cause the impedance change to generate the reflection of the sound energy in the transmission process, Interference, thus reducing the sound energy radiated from the silencer to achieve the aim of primary silencing, when the air enters the resistant silencing cylinder, the section changes suddenly again, the impedance changes again, thus achieving the aim of silencing again, when the air enters the channel pipe, the section changes suddenly again, the impedance changes again, again silencing the air, when the air enters the buffer silencing cylinder, the air can impact on the air cushion, the air cushion can play the role of buffering and absorbing certain energy, thus reducing the sound energy, so as to achieve the aim of silencing, finally the air enters the micro-perforated plate silencing cylinder, the micro-perforated plate silencer silences the air again, and because the air cushion is arranged in a staggered way up and down, the distance of the air in the buffer silencing cylinder is also prolonged, the air velocity can be gradually attenuated along with the distance, and the micro-perforated plate silencer is positioned at the end, thus the air flow velocity in the micro-perforated plate is slowest, from an empirical formula of the amount of sound deadening: when the silencer needs maintenance and cleaning, unscrewing the barrel cover to pour out the cavity barrel, the resistance silencing barrel, the buffer silencing barrel and the micro-perforated plate silencing barrel in sequence for maintenance and cleaning, and after the maintenance and cleaning are finished, filling the cavity barrel, the resistance silencing barrel, the buffer silencing barrel and the micro-perforated plate silencing barrel into the outer barrel in sequence, and screwing the barrel cover tightly.

The embodiments of the present invention are only descriptions of the preferred embodiments of the present invention, not right the present invention is designed and limited, without departing from the design concept of the present invention, the technical personnel in the field should fall into the protection scope of the present invention for various modifications and improvements made by the technical solution of the present invention, and the technical contents of the present invention are all recorded in the claims.

Claims

1. A silencer comprises an outer cylinder (1), and is characterized in that a cavity cylinder (2), a resistance silencing cylinder (3), a resistance silencing cylinder (4), a buffer silencing cylinder (5) and a micro-perforated plate silencing cylinder (6) are sequentially arranged in a cavity of the outer cylinder (1) in a matching manner, the resistance silencing barrel (3) is filled with sound-absorbing material (7), a plurality of airflow channels (8) are uniformly arranged in the sound-absorbing material (7), a clapboard a (9) is arranged in the resistant silencing pot (4), a plurality of channel pipes (10) are uniformly arranged on the clapboard a (9), a plurality of frames (11) are arranged in the buffering and silencing cylinder (5) in a vertically staggered manner, an air cushion (12) is arranged in the frame (11), a baffle plate b (13) is arranged in the microperforated panel anechoic cylinder (6), and a plurality of single-layer micro-perforated plate silencers (14) are uniformly arranged on the partition plate b (13).

2. The silencer according to claim 1 is characterized in that one end of the outer cylinder (1) close to the cavity cylinder (2) is provided with an air inlet pipe (15), the other end of the outer cylinder is provided with a cylinder cover (16), the cylinder cover (16) is in threaded connection with the outer cylinder (1), the bottom of the cylinder cover can be tightly abutted against the end part of the micro-perforated plate silencing cylinder (6), and the cylinder cover (16) is communicated with an air outlet pipe (17).

3. The muffler according to claim 2, wherein the inlet pipe (15) is provided with a pipe cooler (18), the inlet pipe (15) is provided with two layers of wire mesh (20), a drying agent (21) is filled between the wire mesh (20), and the drying agent (21) is large-particle activated alumina.

4. The muffler according to claim 1, characterized in that the gas flow channel (8) is arranged as a gourd-shaped channel.

5. The muffler according to claim 1, characterized in that an air cushion valve (19) is arranged on the air cushion (12).