CN218384493U

CN218384493U - Built-in hindering nature noise cancelling function's exhaust muffler

Info

Publication number: CN218384493U
Application number: CN202222375062.3U
Authority: CN
Inventors: 徐国军; 陈继付
Original assignee: Lianyungang Si'an Power Equipment Co ltd
Current assignee: Lianyungang Si'an Power Equipment Co ltd
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2023-01-24
Anticipated expiration: 2032-09-07

Abstract

The utility model discloses a built-in hindering nature noise cancelling function's exhaust muffler belongs to exhaust muffler field, including the exhaust muffler body, outer noise cancelling cover is including hindering the sound cover and setting up at the inboard sound absorption rock wool of hindering the sound cover, the inboard of sound absorption rock wool is provided with waterproof glass cloth, one side that sound absorption rock wool was kept away from to waterproof glass cloth is provided with sound absorption cartridge orifice board, exhaust muffler body has adopted the through-hole to spout, the amortization principle of hindering, wherein replace micropore wearing plate type with macropore master control flow tube, structurally at first guarantee the principle that emergency exit exhaust must be smooth and easy, it hinders the sound cover simultaneously, sound absorption rock wool, waterproof glass cloth and sound absorption cartridge orifice board, multi-level perforation sound absorption, and combined hindering nature amortization principle, let the steam sound wave get into in the innumerable aperture among the porous sound absorbing material, arouse porous material molecular vibrations, make the acoustic energy become heat energy in order to overcome frictional resistance and viscous force, ideal noise cancelling effect has been reached promptly, it gets rid of steam is got rid of smoothly more to have guaranteed.

Description

Built-in hindering nature noise cancelling function's exhaust muffler

Technical Field

The utility model relates to an exhaust muffler, more specifically the theory that says so relates to an exhaust muffler of built-in hindering nature amortization function.

Background

The exhaust silencer is a product for suppressing exhaust noise, can meet the noise reduction and silencing requirements of various boilers on exhaust steam to the air, exhaust steam of a safety valve and an inlet of a blower of the boiler, and is widely used for boiler steam emission and other gas silencing emission in industries such as petroleum, chemical engineering, metallurgy, textile and the like, so that the noise standard requirements of industrial enterprises are met.

When the existing exhaust silencer is used, the exhaust silencer is usually installed on a boiler pipeline for use, but when the exhaust silencer is used, steam sound waves enter the inside of the exhaust silencer, the silencing effect is not obvious, and the normal use of the exhaust silencer is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome among the prior art steam sound wave and get into the inside back of exhaust muffler, noise cancelling effect is not obvious, influences exhaust muffler's normal use, provides an exhaust muffler of built-in hindering nature amortization function to it is not enough more than the solution, facilitate the use.

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a built-in steam exhaust muffler that hinders amortization function, including the steam exhaust muffler body, the steam exhaust muffler body includes outer noise elimination cover and sets up the interface flange in outer noise elimination cover lower extreme, still is provided with the lug on the outer wall of outer noise elimination cover;

the outer noise reduction cover comprises a noise reduction cover and sound absorption rock wool arranged on the inner side of the noise reduction cover, waterproof glass cloth is arranged on the inner side of the sound absorption rock wool, and a sound absorption barrel hole plate is arranged on one side, far away from the sound absorption rock wool, of the waterproof glass cloth.

Preferably, the inner part of the outer muffling cover is provided with a flow-expanding muffling cylinder and a main control flow pipe, and the main control flow pipe is positioned at the inner side of the flow-expanding muffling cylinder.

Preferably, the upper end of the exhaust silencer body is provided with a rainproof cover, and the lower end of the exhaust silencer body is also provided with a water drain pipe orifice.

Preferably, a support is arranged on the outer wall of the outer sound-deadening hood, and the support is of an ear-type structure.

Preferably, the outer sound-deadening housing is a member made of a carbon steel material.

Preferably, four groups of supports are arranged, and the four groups of supports are symmetrically distributed around the central line of the exhaust silencer body.

Preferably, the lifting lugs are arranged in two groups, and the two groups of lifting lugs are respectively arranged on the left side and the right side of the outer noise reduction cover.

Preferably, the flow-expanding muffling cylinder and the main control flow pipe are both provided with holes, and the aperture of the surface of the flow-expanding muffling cylinder is smaller than that of the surface of the main control flow pipe.

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

compared with the prior art, the beneficial effects of the utility model are as follows:

(1) The utility model discloses a built-in exhaust muffler of hindering nature amortization function, outer muffler through setting up, a diffusion muffler section of thick bamboo and main control flow tube, and the aperture on main control flow tube surface is greater than the aperture on diffusion muffler section of thick bamboo surface, exhaust muffler body has adopted the through-hole to spout, the amortization principle that hinders, wherein replace the micropore wearing plate type with macropore main control flow tube, structurally at first guarantee the principle that emergency exit exhaust must be smooth and easy, still cooperate simultaneously and hinder the muffler, rock wool sound absorption, waterproof glass cloth and sound absorption orifice plate, multi-level perforation sound absorption, and combine hindering nature amortization principle, let the steam sound wave get into in the innumerable aperture in the porous sound absorbing material, arouse porous material molecule vibrations, make the acoustic energy become heat energy in order to overcome frictional resistance and viscous force, ideal noise cancelling effect has been reached promptly, more guaranteed that steam gets rid of smoothly.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a schematic view of the internal structure of the exhaust silencer body of the present invention;

fig. 3 is an enlarged schematic view of the utility model at a in fig. 2;

fig. 4 is a bottom view of the exhaust silencer body structure of the present invention.

In the figure: 1. a discharge muffler body; 11. an outer sound-deadening hood; 111. a sound blocking cover; 112. sound-absorbing rock wool; 113. waterproof glass cloth; 114. a sound absorbing barrel orifice plate; 12. an interface flange; 2. lifting lugs; 3. a flow-expanding noise-reducing cylinder; 4. a main control flow tube; 5. a water discharge pipe orifice; 6. a support; 7. rain-proof cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

For a further understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.

Combine fig. 1, the utility model discloses a built-in hindering nature noise cancelling function's exhaust silencer, including exhaust silencer body 1, exhaust silencer body 1 includes outer noise elimination cover 11 and sets up interface flange 12 at outer noise elimination cover 11 lower extreme, still is provided with lug 2 on the outer wall of outer noise elimination cover 11, utilizes the interface flange 12 of setting to connect.

The present invention will be further described with reference to the following examples.

The first embodiment is as follows:

with reference to fig. 2 to 4, the outer muffling cover 11 includes a sound-blocking cover 111 and a sound-absorbing rock wool 112 disposed inside the sound-blocking cover 111, a waterproof glass cloth 113 is disposed inside the sound-absorbing rock wool 112, a sound-absorbing perforated plate 114 is disposed on a side of the waterproof glass cloth 113 away from the sound-absorbing rock wool 112, and the set sound-absorbing rock wool 112 and the sound-absorbing perforated plate 114 can absorb sound with steam sound waves.

The inside of outer noise reduction cover 11 is provided with a flow-expanding noise reduction barrel 3 and a main control flow pipe 4, and the main control flow pipe 4 is arranged at the inner side of the flow-expanding noise reduction barrel 3.

The upper end of the exhaust silencer body 1 is provided with a rainproof cover 7, and the lower end of the exhaust silencer body 1 is also provided with a water drain pipe orifice 5.

The outer wall of the outer silencing cover 11 is provided with a support 6, and the support 6 is of an ear type structure.

The outer muffling cover 11 is a member made of carbon steel material.

The support 6 is provided with four groups, and the four groups of the support 6 are symmetrically distributed about the central line of the exhaust silencer body 1.

The lifting lugs 2 are arranged in two groups, and the lifting lugs 2 are respectively arranged at the left side and the right side of the outer silencing cover 11, and the lifting lugs 2 arranged are utilized to hoist the exhaust silencer body 1.

The flow-expanding silencing cylinder 3 and the main control flow pipe 4 are both provided with holes, and the aperture of the surface of the flow-expanding silencing cylinder 3 is smaller than that of the surface of the main control flow pipe 4.

In this embodiment, exhaust muffler body 1 has adopted the through-hole to spout, the amortization principle of hindering, wherein replace micropore wearing plate type with macropore main control flow tube 4, structurally guarantee the essential smooth and easy principle of emergency exit exhaust at first, still cooperate simultaneously to hinder acoustic cover 111, sound absorption rock wool 112, waterproof glass cloth 113 and inhale sound barrel orifice plate 114, multi-level perforation sound absorption, and combine hindering nature amortization principle, let the steam sound wave get into in the countless aperture among the porous sound absorbing material, arouse porous material molecule vibrations, make the acoustic energy become heat energy in order to overcome frictional resistance and viscous force, ideal noise cancelling effect has been reached promptly, more guaranteed that steam gets rid of smoothly.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a built-in resistive nature silencing function's exhaust muffler, includes exhaust muffler body (1), its characterized in that: the exhaust silencer body (1) comprises an outer silencing cover (11) and an interface flange (12) arranged at the lower end of the outer silencing cover (11), and lifting lugs (2) are further arranged on the outer wall of the outer silencing cover (11);

the outer sound-absorbing cover (11) comprises a sound-absorbing cover (111) and sound-absorbing rock wool (112) arranged on the inner side of the sound-absorbing cover (111), waterproof glass cloth (113) is arranged on the inner side of the sound-absorbing rock wool (112), and a sound-absorbing barrel hole plate (114) is arranged on one side, far away from the sound-absorbing rock wool (112), of the waterproof glass cloth (113).

2. The exhaust silencer with built-in resistive silencing function according to claim 1, wherein: the flow-expanding noise reduction barrel (3) and the main control flow pipe (4) are arranged inside the outer noise reduction cover (11), and the main control flow pipe (4) is located on the inner side of the flow-expanding noise reduction barrel (3).

3. The exhaust silencer with built-in resistive silencing function according to claim 2, wherein: the upper end of the exhaust silencer body (1) is provided with a rainproof cover (7), and the lower end of the exhaust silencer body (1) is also provided with a water drain pipe orifice (5).

4. The exhaust silencer with built-in resistive silencing function according to claim 3, wherein: the outer wall of the outer muffling cover (11) is provided with a support (6), and the support (6) is of an ear type structure.

5. The exhaust silencer with built-in resistive silencing function according to claim 4, wherein: the outer sound-deadening cover (11) is a member made of carbon steel material.

6. The exhaust silencer with built-in resistive silencing function according to claim 5, wherein: the four groups of supports (6) are arranged, and the four groups of supports (6) are symmetrically distributed around the central line of the exhaust silencer body (1).

7. The exhaust silencer with built-in resistive silencing function according to claim 6, wherein: the two groups of lifting lugs (2) are arranged, and the two groups of lifting lugs (2) are respectively arranged at the left side and the right side of the outer noise reduction cover (11).

8. The exhaust silencer with built-in resistive silencing function according to claim 7, wherein: the flow-expanding noise-reducing cylinder (3) and the main control flow pipe (4) are provided with holes, and the aperture of the surface of the flow-expanding noise-reducing cylinder (3) is smaller than that of the surface of the main control flow pipe (4).