CN214500465U

CN214500465U - Combined type silencer

Info

Publication number: CN214500465U
Application number: CN202023278002.7U
Authority: CN
Inventors: 秦琳玲; 辛军
Original assignee: Wuxi Shiyi Electric Power Environmental Protection Co ltd
Current assignee: Wuxi Shiyi Electric Power Environmental Protection Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-10-26
Anticipated expiration: 2030-12-30

Abstract

The utility model provides a combined type silencer, it includes: a housing having a first cavity formed therein; the silencing inner container is suspended in the first cavity of the shell, a first cavity is formed between the side wall of the shell and the side wall of the silencing inner container, a second cavity is formed between the top wall of the shell and the top wall of the silencing inner container, and a third cavity is formed between the bottom wall of the shell and the bottom wall of the silencing inner container; a flow equalization orifice plate covering a top port of the first cavity; a hydrophobic orifice plate covering a bottom port of the first cavity; the sound absorption medium is filled in the first cavity; and one ends of the connecting pipes are positioned outside the shell, and the other ends of the connecting pipes are positioned in the silencing inner container. Compared with the prior art, the utility model discloses not only have good noise elimination function, have steam-water separation's function moreover.

Description

Combined type silencer

[ technical field ] A method for producing a semiconductor device

The utility model relates to a noise eliminator technical field especially relates to a combined type silencer that multi-channel high pressure steam collected and realized steam-water separation.

[ background of the invention ]

The silencer is a device for reducing noise, which is arranged on an airflow channel of aerodynamic equipment (such as an air storage tank and an air compressor) or in an air inlet and exhaust system. The muffler can block the propagation of sound waves and allow air flow to pass through, and is an effective tool for controlling noise. However, the silencer in the prior art has the problems that the silencing effect is poor, the steam-water separation cannot be realized, and the like.

Therefore, it is necessary to provide a technical solution to overcome the above problems.

[ Utility model ] content

An object of the utility model is to provide a combined type silencer, it not only has good noise elimination function, has steam-water separation's function moreover.

According to an aspect of the utility model, the utility model provides a combined type silencer, it includes: a housing having a first cavity formed therein; the silencing inner container is suspended in the first cavity of the shell, a first cavity is formed between the side wall of the shell and the side wall of the silencing inner container, a second cavity is formed between the top wall of the shell and the top wall of the silencing inner container, and a third cavity is formed between the bottom wall of the shell and the bottom wall of the silencing inner container; a flow equalization orifice plate covering a top port of the first cavity; a hydrophobic orifice plate covering a bottom port of the first cavity; the sound absorption medium is filled in the first cavity; and one ends of the connecting pipes are positioned outside the shell, and the other ends of the connecting pipes are positioned in the silencing inner container.

Further, the sound absorption medium is stainless steel wool.

Further, the tail end of the other end of the connecting pipe is closed; a plurality of first small holes are formed in the pipe wall at the other end of the connecting pipe; the first small hole is communicated with the connecting pipe and a second cavity in the silencing inner container.

Furthermore, a plurality of second small holes are formed in the side wall of the silencing inner container, and the second small holes are communicated with the first cavity and a second cavity in the silencing inner container.

Further, the combined type silencer still includes the collector pipe, the collector pipe set up in the top of shell, just the collector pipe with the second cavity body coupling.

Further, the combined type silencer still includes the drain pipe, the drain pipe set up in the bottom of shell, just the drain pipe with the third cavity intercommunication.

Further, the composite muffler further comprises a leg, and the shell is placed on the leg and supported by the leg.

Furthermore, the other end of the connecting pipe sequentially penetrates through the side wall of the shell, the sound absorption medium and the side wall of the silencing inner container to enter the silencing inner container.

Compared with the prior art, the utility model provides a combined type silencer combines reactive structure and resistive structure according to certain mode, has just constituted the impedance combined type silencer. Therefore, the utility model discloses not only can improve the absorbed dose, but also have good noise elimination function to and have steam-water separation's function, thereby reach steam regeneration's purpose.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:

FIG. 1 is a schematic longitudinal cross-sectional view of a composite muffler in one embodiment of the present invention;

fig. 2 is a top view of a composite muffler in one embodiment of the present invention.

[ detailed description ] embodiments

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with at least one implementation of the invention is included. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Unless otherwise specified, the terms connected, and connected as used herein mean electrically connected, directly or indirectly.

Fig. 1 is a schematic longitudinal sectional view of a composite muffler according to an embodiment of the present invention, and fig. 2 is a top view of the composite muffler according to an embodiment of the present invention. The composite muffler shown in fig. 1 and 2 comprises a plurality of connecting pipes 1 arranged in parallel, a muffling inner container 2, a sound absorption medium 3, a flow equalizing pore plate 4, a drain pore plate 5, a collecting pipe 6, a shell 7, a drain pipe 8 and supporting legs 9.

A first cavity (not identified) is formed in the housing 7; a second cavity 10 is formed in the silencing inner container 2, and the silencing inner container 2 is suspended in the first cavity of the shell 7. Wherein, a first cavity 11 is formed between the side wall of the outer shell 7 and the side wall of the silencing inner container 2; a second cavity 12 is formed between the top wall of the outer shell 7 and the top wall of the silencing inner container 2; a third cavity 13 is formed between the bottom wall of the casing 7 and the bottom wall of the acoustic liner 2. The flow equalizing pore plate 4 covers the top port of the first cavity 11; the hydrophobic pore plate 5 covers the bottom port of the first cavity 11; the sound absorption medium 3 is filled in the first cavity 11. Or, a first cavity 11 is defined by the side wall of the shell 7, the side wall of the silencing liner 2, the flow equalizing pore plate 4 and the hydrophobic pore plate 5; a second cavity 12 is defined by the top wall of the shell 7, the top wall of the silencing inner container 2 and the flow equalizing pore plate 4; a third cavity 13 is enclosed by the bottom wall of the shell 7, the bottom wall of the silencing inner container 2 and the water-draining pore plate 5. It is particularly necessary to say that the first cavity 11 filled with the sound-absorbing medium 3 is a muffler resistive structure.

One end of a plurality of connecting pipes 1 which are arranged in parallel is positioned outside the shell 7 so as to be connected with a plurality of steam pipelines, and the other end of the connecting pipes is positioned in a second cavity 10 in the silencing inner container 2. In the embodiment shown in fig. 1 and fig. 2, there are 3 connecting pipes 1 arranged in parallel, and in other embodiments, there may be 1, 2, 4 or more connecting pipes 1 arranged in parallel. In the embodiment shown in fig. 1 and 2, the other ends of the connecting pipes 1 arranged in parallel sequentially penetrate through the side wall of the casing 7, the sound-absorbing medium 3 and the side wall of the silencing liner 2 and enter the second cavity 10 in the silencing liner 2.

The other end of the connecting pipe 1 can be set to be a muffler resistant structure, for example, the other end of the connecting pipe 1 is a straight pipe with a closed end, a plurality of first small holes or first through holes (not marked) are formed on the pipe wall of the other end of the connecting pipe 1, and the first small holes are communicated (or connected) with the second cavity 10 in the connecting pipe 1 and the muffler liner 2.

A plurality of second small holes or second through holes (not marked) are formed on the side wall of the silencing inner container 2, and the second small holes are communicated (or connected) with the first cavity 11 and a second cavity 10 in the silencing inner container 2. In the embodiment shown in fig. 1 and 2, the sound-absorbing medium 3 is stainless steel wool.

The collecting pipe 6 is arranged at the top of the shell 7, and the collecting pipe 6 is communicated (or connected) with the second cavity 12; the drain pipe 8 is arranged at the bottom of the shell 7, and the drain pipe 8 is communicated (or connected) with the third cavity 13; the housing is placed on the legs 9 and the housing 7 is supported by the legs 9.

To facilitate understanding of the present invention, the working principle of the compound muffler shown in fig. 1 and 2 is described in detail below, wherein the direction of the arrow in fig. 1 indicates the direction of the exhaust.

The steam enters the muffler resistance structure through a plurality of connecting pipes 1 which are arranged in parallel. This muffler reactive structure does: the other end of the connecting pipe 1 is a straight pipe with a closed end, a plurality of first small holes or first through holes (not marked) are formed on the pipe wall of the other end of the connecting pipe 1, the first small holes are communicated (or connected) with the connecting pipe 1 and a second cavity 10 in the silencing liner 2, namely, the other end of the connecting pipe 1 is a small-hole silencer. The principle of the small hole silencer is based on the frequency spectrum of jet noise (or steam noise), the total area of the jet holes is kept unchanged, and a plurality of small jet holes (or first small holes) are used for replacing the small jet holes, when the air flow passes through the first small holes, the frequency spectrum of the jet noise is shifted to high frequency or ultrahigh frequency, and the audible sound component in the frequency spectrum is obviously reduced.

The steam enters the silencing inner container 2 through the silencer reactive structure. The steam is rapidly expanded in the silencing inner container 2, and the pressure and the speed are reduced.

The steam after pressure reduction and speed reduction uniformly enters a silencer resistive structure (namely a first cavity 11 filled with stainless steel wool 3) through the side wall of the silencing liner 2, and the silencer resistive structure mainly reduces noise by using porous sound absorption materials such as the stainless steel wool 3. The sound absorption material is fixed on the airflow channel, when sound waves enter the resistive structure of the silencer, steam and the stainless steel wool 3 rub and collide at a high speed, and a part of sound energy rubs in the pores of the stainless steel wool 3 to be converted into heat energy which is dissipated, so that the sound waves passing through the resistive structure of the silencer are weakened, and the aim of silencing is achieved.

The steam after the noise reduction of the stainless steel wool 3 flows to the first cavity 11 through the flow equalizing pore plate 4 and finally flows out of the collecting pipe 6, so that the recycling of the steam is realized. Meanwhile, the condensed water generated by the steam colliding with the stainless steel wool 3 is collected to the second cavity 12 through the hydrophobic pore plate 5 under the action of gravity, and finally flows out through the hydrophobic pipe 8.

To sum up, the utility model discloses two basic principles of making an uproar of falling of silencer have been utilized: the diffusion cavity can reduce peak noise in a more concentrated frequency band; the sound absorbing material provides a balanced noise reduction effect over a wide frequency range. Thereby resistance structure and resistive structure are made up according to certain mode, have just constituted the utility model provides an impedance combined type silencer. Therefore, the utility model discloses the effectual reflection technique and the resonant energy consumption's that has combined characteristics not only can improve the absorbed dose, but also has good noise elimination function to and have vapor-water separation's function, thereby reach steam regeneration's purpose.

In the present invention, the terms "connected," "connecting," and the like mean connected, and if not specifically stated, direct or indirect connection.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment, but all equivalent modifications or changes made by those skilled in the art according to the present invention should be included in the protection scope of the claims.

Claims

1. A composite muffler, comprising:

a housing having a first cavity formed therein;

the silencing inner container is suspended in the first cavity of the shell, a first cavity is formed between the side wall of the shell and the side wall of the silencing inner container, a second cavity is formed between the top wall of the shell and the top wall of the silencing inner container, and a third cavity is formed between the bottom wall of the shell and the bottom wall of the silencing inner container;

a flow equalization orifice plate covering a top port of the first cavity;

a hydrophobic orifice plate covering a bottom port of the first cavity;

the sound absorption medium is filled in the first cavity;

and one ends of the connecting pipes are positioned outside the shell, and the other ends of the connecting pipes are positioned in the silencing inner container.

2. The composite muffler of claim 1,

the sound absorption medium is stainless steel wool.

3. The composite muffler of claim 1,

the tail end of the other end of the connecting pipe is closed;

a plurality of first small holes are formed in the pipe wall at the other end of the connecting pipe;

the first small hole is communicated with the connecting pipe and a second cavity in the silencing inner container.

4. The composite muffler of claim 3,

a plurality of second small holes are formed on the side wall of the silencing inner container,

the second small hole is communicated with the first cavity and a second cavity in the silencing liner.

5. The composite muffler of claim 4, further comprising a manifold,

the collecting pipe set up in the top of shell, just the collecting pipe with second cavity body connects.

6. The composite muffler of claim 4, further comprising a drain pipe,

the drain pipe is arranged at the bottom of the shell and communicated with the third cavity.

7. The composite muffler of claim 4, further comprising a leg,

the housing is placed on and supported by the leg.

8. The composite muffler of claim 1,

the other end of the connecting pipe sequentially penetrates through the side wall of the shell, the sound absorption medium and the side wall of the silencing inner container to enter the silencing inner container.