CN220623050U

CN220623050U - Resistive wall muffler

Info

Publication number: CN220623050U
Application number: CN202322426475.4U
Authority: CN
Inventors: 孙春艳; 许占猛; 路春雷
Original assignee: Jiangsu Bangjiu Petrochemical Equipment Co ltd
Current assignee: Jiangsu Bangjiu Petrochemical Equipment Co ltd
Priority date: 2023-09-07
Filing date: 2023-09-07
Publication date: 2024-03-19
Anticipated expiration: 2033-09-07

Abstract

The utility model relates to a resistive wall silencer, which comprises an outer pipe, wherein a silencing treatment mechanism is arranged in the outer pipe, an auxiliary component is arranged in the outer pipe, the silencing treatment mechanism comprises a supporting rod arranged in the outer pipe, two ends of the supporting rod are respectively provided with a baffle fixedly connected with the outer pipe, an inner silencing layer is sleeved outside the supporting rod, an outer silencing layer is fixedly connected with the inner wall of the outer pipe, and a first air duct and a second air duct are respectively and fixedly connected with the inner parts of the two baffles. According to the resistive wall silencer, the double silencing wall structure can perform multiple diffuse reflection noise reduction on sound waves, so that the noise reduction effect is greatly enhanced, the noise reduction frequency characteristic is guaranteed, the resistive noise reduction characteristic is improved, the effect of reducing the volume and the quality of the device can be achieved through the structural characteristic of the internal structure, and the effect of being convenient to install is achieved; in addition, the auxiliary assembly can reduce the corrosion effect of high temperature and water vapor on the sound absorbing material.

Description

Resistive wall muffler

Technical Field

The utility model relates to the technical field of silencers, in particular to a resistive wall silencer.

Background

The resistive muffler is produced by utilizing sound waves to propagate in a porous sound absorption material or a sound absorption structure, and acoustic energy is converted into heat energy by friction to be emitted, so that noise propagating along a pipeline is attenuated along with the distance, and the purpose of silencing is achieved; the silencer has small pressure drop on air flow and good silencing effect on medium-frequency and high-frequency sound waves, so that the silencer is widely applied.

Please refer to an impedance-combined muffler with publication number CN208416651U, in this patent, "the existing impedance-combined muffler is generally larger in volume, heavier in mass, inconvenient to install, and lower in noise-eliminating effect", and the above-mentioned embodiment reduces the back pressure generated by the muffler and improves the noise-reducing effect of the muffler by providing two resistive muffling chambers and a plurality of separators, however, the resistive muffling chamber in the above-mentioned embodiment is simpler in structure and poorer in noise-reducing effect, and another technical scheme is proposed to solve the problem.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the resistive wall silencer which has the advantages of simple structure, convenient use, capability of utilizing a double silencing wall structure to perform multiple diffuse reflection noise reduction on sound waves, strengthening the silencing effect, reducing the corrosion effect of high temperature and water vapor on sound absorbing materials by utilizing an auxiliary component, prolonging the service life of the silencer and the like, and solves the problems that the silencer in the prior art is large in size and weight, inconvenient to install and poor in noise weakening effect.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a resistive wall muffler comprising an outer tube, the interior of which is provided with a muffler treatment mechanism, the interior of which is provided with an auxiliary assembly;

the silencing treatment mechanism comprises a supporting rod arranged inside an outer pipe, two ends of the supporting rod are respectively provided with a baffle fixedly connected with the outer pipe, an inner silencing layer is sleeved on the outer side of the supporting rod, an outer silencing layer is fixedly connected with the inner wall of the outer pipe, two inner air guide pipes and a second air guide pipe are respectively fixedly connected with the inside of the baffle, a first spiral pipe is fixedly connected to the right side of the first air guide pipe, and a second spiral pipe is fixedly connected to the left side of the second air guide pipe.

Further, the left side fixedly connected with intake pipe of outer tube, the right side fixedly connected with blast pipe of outer tube.

Further, the cross sections of the inner silencing layer and the outer silencing layer are wavy, and the first spiral pipe and the second spiral pipe are staggered between the inner silencing layer and the outer silencing layer.

Further, the tail ends of the first spiral tube and the second spiral tube are fixedly connected with gas-blocking end covers, and a plurality of gas guide holes are formed in the first spiral tube and the second spiral tube.

Further, the auxiliary assembly comprises a water-gas separator arranged inside the outer tube, the water-gas separator is positioned on the left side of the left baffle, a refrigerating sheet is fixedly connected between the support rod and the inner silencing layer, and the shape of the refrigerating sheet is annular.

Further, the input end of the water-gas separator is fixedly connected with the air inlet pipe, and the output end of the water-gas separator is fixedly connected with the first air guide pipe.

Further, the inside of outer tube is provided with the mounting bracket of being connected with moisture separator fixedly, the bottom of moisture separator is provided with the outlet that extends to the outer tube bottom.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. according to the resistive wall silencer, through the arranged silencing treatment mechanism, air flows between the inner silencing layer and the outer silencing layer under the action of the first spiral pipe and the second spiral pipe, the double silencing wall structure can conduct multiple diffuse reflection noise reduction on sound waves, the silencing effect is greatly enhanced, the noise reduction frequency characteristic is guaranteed, the silencing layer is added to absorb sound wave energy, and the resistive silencing characteristic is increased; and overall structure is comparatively simple, and the spiral of first spiral pipe and second spiral pipe is arranged, can realize reducing device volume and the effect of quality, can reach the effect of being convenient for install.

2. According to the resistive wall silencer, through the arranged auxiliary assembly, the arranged water-gas separator can be utilized to divide the air flow entering the outer pipe, the arranged refrigerating sheet can cool the air flow in the outer pipe, the corrosion effect of high temperature and water vapor on sound absorption materials can be effectively reduced, and the service life of the silencer is prolonged.

Drawings

FIG. 1 is a cross-sectional view of the structure of the present utility model;

FIG. 2 is a side cross-sectional view of the structure of the present utility model;

FIG. 3 is a cross-sectional view of a first helical tube of the present utility model.

In the figure: 1. an outer tube; 2. an air inlet pipe; 3. a water-gas separator; 4. a first air duct; 5. a first helical tube; 501. an air guide hole; 6. a gas-blocking end cover; 7. a second air duct; 8. a second helical tube; 9. an exhaust pipe; 10. a support rod; 11. an inner sound damping layer; 12. an outer sound deadening layer; 13. a baffle; 14. a water outlet; 15. a refrigerating sheet.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, a resistive wall muffler in the present embodiment includes an outer tube 1, a muffler mechanism is disposed inside the outer tube 1, and an auxiliary assembly is disposed inside the outer tube 1.

Embodiment one: the noise reduction treatment mechanism comprises a supporting rod 10 arranged inside the outer tube 1, baffle plates 13 fixedly connected with the outer tube 1 are arranged at two ends of the supporting rod 10, an air inlet tube 2 is fixedly connected to the left side of the outer tube 1, an exhaust tube 9 is fixedly connected to the right side of the outer tube 1, air flow is conveniently led into the outer tube 1 by the aid of the air inlet tube 2, the treated air flow is discharged by the aid of the exhaust tube 9, an inner noise reduction layer 11 is sleeved on the outer side of the supporting rod 10, and an outer noise reduction layer 12 is fixedly connected to the inner wall of the outer tube 1.

Wherein, the cross section of interior amortization layer 11 and outer amortization layer 12 is the wave, conveniently makes sound wave can carry out multiple diffuse reflection between amortization layer 11 and outer amortization layer 12 and falls, improves noise reduction effect, and the inside of two baffles 13 is fixedly connected with first air duct 4 and second air duct 7 respectively, and the right side fixedly connected with first spiral pipe 5 of first air duct 4, the left side fixedly connected with second spiral pipe 8 of second air duct 7.

Wherein, the staggered arrangement between interior amortization layer 11 and outer amortization layer 12 of first spiral pipe 5 and second spiral pipe 8, conveniently prolong pipeline length, improve the area of contact of sound wave and amortization wall, the diffuse reflection time of extension sound wave to keep good noise reduction effect, the equal fixedly connected with in end of first spiral pipe 5 and second spiral pipe 8 hinders gas end cover 6, and a plurality of air vents 501 have all been offered to the inside of first spiral pipe 5 and second spiral pipe 8, conveniently utilize air vent 501 to realize the gas circulation of first spiral pipe 5 and second spiral pipe 8 and the inside cavity of outer tube 1.

The resistive wall silencer can enable air flow to flow between the inner silencing layer 11 and the outer silencing layer 12 under the action of the first spiral pipe 5 and the second spiral pipe 8 through the silencing treatment mechanism, the double silencing wall structure can conduct multiple diffuse reflection noise reduction on sound waves, the silencing effect is greatly enhanced, the noise reduction frequency characteristic is guaranteed, the silencing layer is added to absorb sound wave energy, and the resistive silencing characteristic is increased; and overall structure is comparatively simple, and the spiral of first spiral pipe 5 and second spiral pipe 8 arranges, can realize reducing device volume and the effect of quality, can reach the effect of being convenient for install.

Embodiment two: the auxiliary assembly comprises a water-gas separator 3 arranged inside the outer tube 1, the water-gas separator 3 is positioned on the left side of a left baffle 13, the input end of the water-gas separator 3 is fixedly connected with the air inlet tube 2, the output end of the water-gas separator 3 is fixedly connected with the first air guide tube 4, the water-gas separator 3 is convenient to divide the air flow entering the outer tube 1, an installation frame fixedly connected with the water-gas separator 3 is arranged inside the outer tube 1, and the installation of the water-gas separator 3 is convenient to be kept stable by the installation frame.

Wherein, the bottom of water vapor separator 3 is provided with the outlet 14 that extends to outer tube 1 bottom, conveniently utilizes outlet 14 to discharge the liquid that water vapor separator 3 separated, fixedly connected with refrigeration piece 15 between bracing piece 10 and the interior amortization layer 11, and the shape of refrigeration piece 15 is annular, conveniently utilizes refrigeration piece 15 to cool down to the air current in the outer tube 1.

It should be noted that, according to the resistive wall silencer, through the auxiliary assembly, the air flow entering the outer pipe 1 can be subjected to water diversion treatment by utilizing the water-gas separator 3, and the air flow can be cooled by the refrigerating sheet 15 in the outer pipe 1, so that the corrosion effect of high temperature and water vapor on sound absorption materials can be effectively reduced, and the service life of the silencer is prolonged.

The working principle of the embodiment is as follows:

when the resistive wall silencer is used, air flow can be led into the outer pipe 1 through the air inlet pipe 2, the air flow discharged from the air inlet pipe 2 is subjected to water diversion treatment through the arranged water-gas separator 3, the moisture in the air flow is removed, then the air flow can be led between the two baffles 13 through the first air guide pipe 4, the refrigerating sheet 15 is enabled to operate, the air flow is cooled in the outer pipe 1, so that the corrosion effect of high temperature and water vapor on sound absorption materials is effectively reduced, and the service life of the silencer is prolonged; and utilize the air vent 501 on first spiral pipe 5 and the second spiral pipe 8 can realize gaseous circulation to cooperate the structural feature of first spiral pipe 5 and second spiral pipe 8, make the sound wave can carry out multiple diffuse reflection and fall between inner amortization layer 11 and outer amortization layer 12 and fall the noise, keep good noise reduction effect.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

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

Claims

1. A resistive wall muffler comprising an outer tube (1), characterized in that: a silencing mechanism is arranged in the outer tube (1), and an auxiliary component is arranged in the outer tube (1);

the utility model provides a sound attenuation treatment mechanism includes bracing piece (10) that outside pipe (1) inside set up, the both ends of bracing piece (10) all are provided with baffle (13) with outside pipe (1) fixed connection, the outside cover of bracing piece (10) is equipped with interior amortization layer (11), the inner wall fixedly connected with outer amortization layer (12) of outside pipe (1), two the inside of baffle (13) is first air duct (4) and second air duct (7) of fixedly connected with respectively, the right side fixedly connected with first spiral pipe (5) of first air duct (4), the left side fixedly connected with second spiral pipe (8) of second air duct (7).

2. A resistive wall muffler according to claim 1, wherein: the left side fixedly connected with intake pipe (2) of outer tube (1), the right side fixedly connected with blast pipe (9) of outer tube (1).

3. A resistive wall muffler according to claim 1, wherein: the cross sections of the inner silencing layer (11) and the outer silencing layer (12) are wavy, and the first spiral pipe (5) and the second spiral pipe (8) are staggered between the inner silencing layer (11) and the outer silencing layer (12).

4. A resistive wall muffler according to claim 1, wherein: the air-blocking end covers (6) are fixedly connected to the tail ends of the first spiral pipe (5) and the second spiral pipe (8), and a plurality of air guide holes (501) are formed in the first spiral pipe (5) and the second spiral pipe (8).

5. A resistive wall muffler according to claim 1, wherein: the auxiliary assembly comprises a water-gas separator (3) arranged inside the outer tube (1), the water-gas separator (3) is positioned on the left side of the left baffle (13), a refrigerating sheet (15) is fixedly connected between the supporting rod (10) and the inner silencing layer (11), and the shape of the refrigerating sheet (15) is annular.

6. A resistive wall muffler according to claim 5, wherein: the input end of the water-gas separator (3) is fixedly connected with the air inlet pipe (2), and the output end of the water-gas separator (3) is fixedly connected with the first air guide pipe (4).

7. A resistive wall muffler according to claim 5, wherein: the inside of outer tube (1) is provided with the mounting bracket of being connected with water vapor separator (3) fixedly, the bottom of water vapor separator (3) is provided with outlet (14) that extend to outer tube (1) bottom.