阅读说明：本技术 一种消音性强的消音器 (Muffler that amortization nature is strong ) 是由 朱国齐 于 2020-11-16 设计创作，主要内容包括：本发明公开了一种消音性强的消音器,涉及消音器技术领域,为解决使用吸声材料制作的消音器进行消音,对高速传播的声音吸收效果不佳,导致经过消音器后的声音的能量削弱较弱,消音后的效果不佳的问题。所述消音器壳体的两侧分别设置有进气端口和出气端口,且进气端口和出气端口均与消音器壳体设置为一体结构,所述消音器壳体的内部设置有消音器内腔,且消音器内腔与消音器壳体设置为一体结构,所述消音器内腔的内部设置有气体膨胀管,且气体膨胀管与消音器内腔设置为一体结构,所述气体膨胀管上设置有分流孔,分流孔设置有若干个,所述进气端口的一侧设置有连接法兰盘。(The invention discloses a silencer with high silencing performance, relates to the technical field of silencers, and aims to solve the problems that when a silencer made of a sound absorption material is used for silencing, the sound absorption effect on high-speed transmitted sound is poor, so that the energy of the sound passing through the silencer is weakened weakly, and the effect after silencing is poor. The both sides of muffler casing are provided with inlet port respectively and give vent to anger the port, and inlet port and the port of giving vent to anger all set up structure as an organic whole with the muffler casing, the inside of muffler casing is provided with the muffler inner chamber, and the muffler inner chamber sets up structure as an organic whole with the muffler casing, the inside of muffler inner chamber is provided with the gas expansion pipe, and the gas expansion pipe sets up structure as an organic whole with the muffler inner chamber, be provided with the diffluence pass on the gas expansion pipe, the diffluence pass is provided with a plurality of, one side of inlet port is provided with flange dish.)

1. A silencer with strong silencing performance comprises a silencer shell (1), and is characterized in that: the two sides of the silencer shell (1) are respectively provided with an air inlet port (4) and an air outlet port (5), the air inlet port (4) and the air outlet port (5) are integrated with the silencer shell (1), a silencer inner cavity (2) is arranged in the silencer shell (1), and the inner cavity (2) of the silencer and the shell (1) of the silencer are arranged into an integral structure, a gas expansion pipe (7) is arranged in the inner cavity (2) of the silencer, and the gas expansion pipe (7) and the inner cavity (2) of the silencer are arranged into an integral structure, the gas expansion pipe (7) is provided with a plurality of shunting holes (11), the shunting holes (11) are arranged, and the shunting hole (11) and the gas expansion pipe (7) are punched into an integral structure, one side of the gas inlet port (4) is provided with a connecting flange plate (6), and the connecting flange plate (6) and the silencer shell (1) are arranged into an integral structure.

2. A highly attenuating silencer according to claim 1, characterised in that: the gas expansion pipe is characterized in that a spiral blade (8) is arranged outside the gas expansion pipe (7), the spiral blade (8) is provided with a plurality of bodies, the spiral blade (8) and the gas expansion pipe (7) and the silencer inner cavity (2) are all arranged into a whole, a through hole (12) is formed in the spiral blade (8), the through hole (12) is provided with a plurality of bodies, and the through hole (12) and the spiral blade (8) are punched into a whole.

3. A highly attenuating silencer according to claim 1, characterised in that: one side of gas expansion pipe (7) is provided with toper minute wind ware (9), and toper minute wind ware (9) is provided with a plurality of, and toper minute wind ware (9) sets gradually in the inside of muffler inner chamber (2), toper minute wind ware (9) passes through the screw connection with muffler inner chamber (2).

4. A highly attenuating silencer according to claim 1, characterised in that: the inner wall of the inner cavity (2) of the silencer is provided with an arc-shaped circulation groove (13), the arc-shaped circulation groove (13) and the inner cavity (2) of the silencer are punched into an integral structure, and the arc-shaped circulation groove (13) is arranged between the conical air distributors (9).

5. A highly attenuating silencer according to claim 1, characterised in that: be provided with between muffler inner chamber (2) and muffler casing (1) and inhale sound asbestos fiber pad (3), and inhale the outer wall of sound asbestos fiber pad (3) and muffler inner chamber (2) and the inner wall of muffler casing (1) and laminate mutually.

6. A highly attenuating silencer according to claim 1, characterised in that: the silencer is characterized in that heat collection radiating fins (10) are arranged outside the silencer shell (1), the number of the heat collection radiating fins (10) is three, the heat collection radiating fins (10) are attached to the outer wall of the silencer shell (1), and the number of the heat collection radiating fins (10) is three and the heat collection radiating fins (10) are sequentially arranged outside the silencer shell (1).

Technical Field

The invention relates to the technical field of silencers, in particular to a silencer with strong silencing property.

Background

The silencer is a device for preventing sound from spreading and allowing airflow to pass through, is an important measure for eliminating aerodynamic noise, is a device for reducing noise which is arranged on an airflow channel of aerodynamic equipment or in an air inlet and exhaust system, and is mainly used on equipment with large noise at an air outlet, such as a blower, an air compressor, a boiler exhaust port, a generator, a water pump and the like. Noise is reduced mainly by porous sound absorbing materials. When sound wave enters the resistive silencer, part of sound energy is rubbed in the pores of the porous material and converted into heat energy to be dissipated, so that the sound wave passing through the silencer is weakened.

At present, the silencer made of sound absorption materials is used for silencing, the sound absorption effect of high-speed transmission is poor, the energy of sound passing through the silencer is weakened weakly, the effect after silencing is poor, and the use requirement cannot be met. Therefore, a silencer with high silencing performance is urgently needed in the market to solve the problems.

Disclosure of Invention

The invention aims to provide a silencer with strong silencing performance, and aims to solve the problems that the silencer made of sound absorption materials is poor in silencing effect, so that the energy of sound passing through the silencer is weakened weakly, and the silencing effect is poor.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a muffler that amortization nature is strong, includes the muffler casing, the both sides of muffler casing are provided with inlet port respectively and give vent to anger the port, and inlet port and the port of giving vent to anger all set up structure as an organic whole with the muffler casing, the inside of muffler casing is provided with the muffler inner chamber, and muffler inner chamber and muffler casing set up structure as an organic whole, the inside of muffler inner chamber is provided with gas expansion pipe, and gas expansion pipe and muffler inner chamber set up structure as an organic whole, the last diffluence pass that is provided with of gas expansion pipe, diffluence pass are provided with a plurality of, and diffluence pass and gas expansion pipe punching press structure as an organic whole, one side of inlet port is provided with the connection flange dish, and the connection flange dish sets up structure as an organic whole with the muffler casing.

Preferably, the outside of gas expansion pipe is provided with helical blade, and helical blade is provided with a plurality of, and helical blade all sets up structure as an organic whole with gas expansion pipe and muffler inner chamber, be provided with the through-hole on the helical blade, the through-hole is provided with a plurality of, and through-hole and helical blade punching press structure as an organic whole.

Preferably, one side of the gas expansion pipe is provided with a conical air distributor, the conical air distributor is provided with a plurality of air distributors, the conical air distributors are sequentially arranged inside the inner cavity of the silencer, and the conical air distributors are connected with the inner cavity of the silencer through screws.

Preferably, an arc-shaped circulation groove is formed in the inner wall of the inner cavity of the silencer, the arc-shaped circulation groove and the inner cavity of the silencer are punched into an integral structure, and the arc-shaped circulation groove is arranged between the conical air distributors.

Preferably, be provided with between muffler inner chamber and the muffler casing and inhale the sound asbestos fiber pad, just inhale the sound asbestos fiber pad and laminate mutually with the outer wall of muffler inner chamber and the inner wall of muffler casing.

Preferably, the silencer shell is externally provided with three heat collection radiating fins, the three heat collection radiating fins are attached to the outer wall of the silencer shell, and the three heat collection radiating fins are sequentially arranged outside the silencer shell.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the device, through the arrangement of the gas expansion pipe, the shunting holes, the helical blades and the through holes, the gas expansion pipe can extrude air and disperse the air by means of the shunting holes, and the helical blades can enable the scattered air to circulate and decompose energy by means of the through holes, so that the noise reduction effect is improved. The problem of rely on sound absorbing material directly to carry out the noise cancelling effect not good is solved.

2. According to the device, the conical air distributor, the arc-shaped circulation groove and the sound-absorbing asbestos fiber mat are arranged, the conical air distributor can decompose wind energy of flowing wind step by step, so that aerodynamic force is reduced, separated aerodynamic force can be circulated by means of the arc-shaped circulation groove to increase movement loss, the sound-absorbing asbestos fiber mat can absorb sound energy, the separated energy is removed, and the effect of the silencer is improved. The problem of high-speed air that flows not through the energy dissipation processing, the noise cancelling effect is not good is solved.

3. According to the device, the heat collection radiating fins are arranged, so that the heat collection radiating fins can absorb heat on the shell of the silencer and quickly release the heat, the temperature inside the silencer is controlled, and the silencing effect of the silencer is indirectly improved. The problem of acoustic energy transfer to the muffler turn into the inside temperature of heat energy promotion muffler and rise, lead to the noise cancelling effect of muffler to descend is solved.

Drawings

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

FIG. 2 is a cross-sectional view of a gas expansion tube of the present invention;

fig. 3 is a partially enlarged view of the region a of the present invention.

In the figure: 1. a muffler housing; 2. an inner cavity of the silencer; 3. a sound absorbing asbestos fiber mat; 4. an air inlet port; 5. an air outlet port; 6. connecting a flange plate; 7. a gas expansion pipe; 8. a helical blade; 9. a conical air distributor; 10. heat collecting radiating fins; 11. a shunt hole; 12. a through hole; 13. an arc circulation groove.

Detailed Description

The technical solutions 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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, an embodiment of the present invention is shown: a silencer with strong silencing performance comprises a silencer shell 1, wherein both sides of the silencer shell 1 are respectively provided with an air inlet port 4 and an air outlet port 5, the air inlet port 4 and the air outlet port 5 are both arranged into an integral structure with the silencer shell 1, a silencer inner cavity 2 is arranged inside the silencer shell 1, the silencer inner cavity 2 and the silencer shell 1 are arranged into an integral structure, a gas expansion pipe 7 is arranged inside the silencer inner cavity 2, the gas expansion pipe 7 and the silencer inner cavity 2 are arranged into an integral structure, a plurality of shunting holes 11 are arranged on the gas expansion pipe 7, the shunting holes 11 and the gas expansion pipe 7 are punched into an integral structure, the gas expansion pipe 7 can extrude air, compressed air is dispersed by means of the shunting holes 11, one side of the air inlet port 4 is provided with a connecting flange 6, and the connecting flange 6 and the silencer shell 1 are arranged into an integral structure, the connecting flange plate 6 can conveniently connect the silencer with a sound production source.

Further, the outside of gas expansion pipe 7 is provided with helical blade 8, and helical blade 8 is provided with a plurality of, and helical blade 8 all sets up structure as an organic whole with gas expansion pipe 7 and muffler inner chamber 2, is provided with through-hole 12 on the helical blade 8, and through-hole 12 is provided with a plurality of, and through-hole 12 and helical blade 8 punching press integrated structure. The extruded scattered air can be guided by the helical blades 8, and the moving air is divided by the through holes 12, so that energy loss is increased.

Further, one side of gas expansion pipe 7 is provided with toper minute wind ware 9, and toper minute wind ware 9 is provided with a plurality of, and toper minute wind ware 9 sets gradually in the inside of muffler inner chamber 2, and toper minute wind ware 9 passes through bolted connection with muffler inner chamber 2. The energy in the flowing air can be reduced step by step through the conical air distributor 9, and the movement loss is increased.

Further, an arc-shaped circulation groove 13 is formed in the inner wall of the inner cavity 2 of the silencer, the arc-shaped circulation groove 13 and the inner cavity 2 of the silencer are punched into an integral structure, and the arc-shaped circulation groove 13 is arranged between the conical air distributors 9. The air can be moved along by the curved circulation grooves 13, increasing the contact neps, so that the sound energy is transmitted to the silencer inner chamber 2.

Further, be provided with between muffler inner chamber 2 and the muffler casing 1 and inhale sound asbestos fiber pad 3, and inhale the sound asbestos fiber pad 3 and the outer wall of muffler inner chamber 2 and the inner wall of muffler casing 1 and laminate mutually. The sound energy in the silencer cavity 2 can be absorbed by the sound-absorbing asbestos fibre mat 3 and the transmission efficiency of the sound to the outside can be increased.

Further, the outside of the silencer shell 1 is provided with three heat collection radiating fins 10, the three heat collection radiating fins 10 are attached to the outer wall of the silencer shell 1, and the three heat collection radiating fins 10 are sequentially arranged outside the silencer shell 1. The heat on the silencer shell 1 can be absorbed and released through the heat collecting radiating fins 10, so that the temperature inside the silencer is controlled, and the silencing capacity of the silencer is indirectly improved.

The working principle is as follows: when the silencer is used, the silencer is connected with a generating source through the connecting flange plate 6, sound enters the gas expansion pipe 7 from the gas inlet port 4, air is extruded through the gas expansion pipe 7, the extruded air is dispersed through the diversion holes 11, the spiral blades 8 can guide the dispersed air and divide the dispersed air again through the through holes 12, and therefore sound energy is reduced; air that comes out from gas expansion pipe 7 can shunt the air step by step when the toper divides wind ware 9, further weaken sound energy, the air that the reposition of redundant personnel got off moves along arc circulation groove 13, area of contact has been increased, acoustic energy transmission to muffler inner chamber 2 that will contain on, inhale sound asbestos fibre pad 3 can lead the efficiency that sound absorption and can the outside propagation of greatly increased sound on muffler inner chamber 2 with the transmission, thereby the amortization performance has been improved, thermal-arrest fin 10 can absorb the release with the heat on muffler casing 1, thereby can the inside temperature of effectual control muffler, indirect improvement the noise cancelling effect of muffler.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.