Mounting structure of array type silencer

Abstract

The utility model relates to a mounting structure of an array type silencer, which comprises a shell, an accommodating space is arranged in the shell, the front end and the rear end of the accommodating space are respectively provided with an opening, and a fixing frame is arranged on the outer side of the shell in a surrounding manner; the silencer assembly is arranged in the shell and comprises sound absorbers and flow guide covers, the flow guide covers are fixedly arranged at the two ends of the sound absorbers, the sound absorbers are arranged in the containing space in an array mode, and the flow guide covers are fixedly connected with the shell; the longitudinal section of the sound absorber is wave-shaped; the supporting rod is arranged in the shell, a through hole penetrating through the upper end face and the lower end face is formed in the flow guide cover, the supporting rod penetrates through the through hole and is connected with the fixing frame, and the supporting rod is fixedly connected to the flow guide cover. By adopting the structure, the effective length of the sound absorber is increased, so that the silencing effect of the silencer is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of muffler, specifically relates to an installation structure of array muffler. BACKGROUND

[0002] With the rapid development of economy, noise pollution becomes the problem that people pay more and more attention to, and people living in noise for a long time can cause the problems of restlessness, irritability, mental stress and other hazards to health. In the tunnel and large mechanical cooling tower engineering, high-power fan is generally installed, and a large amount of noise is generated when the fan runs, which seriously affects the normal life of workers and nearby residents. The muffler is a kind of equipment that can effectively reduce noise. In the noise larger ventilation system, the muffler is usually arranged to reduce the noise influence of the ventilation equipment. The array muffler is designed by a plurality of parallel sound-absorbing units in the airflow direction, so that the noise influence can be effectively reduced and widely applied. In the prior art, the sound-absorbing body and the flow guide cover are arranged between the support rods at both ends, the effective length of the sound-absorbing body is reduced, part of the sound-absorbing effect is sacrificed, and the length of the conventional muffler assembly is limited, so that the noise reduction effect is general.

[0003] Therefore, there is an urgent need to provide an installation structure of array muffler to solve the above problems. INVENTION CONTENTS

[0004] The utility model aims at overcoming the insufficient and defects of prior art, providing an installation structure of array muffler, increasing the effective length of sound-absorbing body, and effectively improving the sound-absorbing effect of muffler.

[0005] The utility model aims at overcoming the insufficient and defects of prior art, providing an installation structure of array muffler, increasing the effective length of sound-absorbing body, and effectively improving the sound-absorbing effect of muffler.

[0006] An installation structure of array muffler, characterized by comprising:

[0007] A shell is provided with a containing space, the front and rear ends of the containing space are provided with openings, and a fixed frame is arranged on the outer side of the shell;

[0008] A muffler assembly is arranged in the shell, and the muffler assembly comprises a sound-absorbing body and a flow guide cover, the flow guide cover is fixedly arranged at both ends of the sound-absorbing body, a plurality of sound-absorbing bodies are arranged in the containing space in an array, the flow guide cover is fixedly connected with the shell, and the longitudinal section of the sound-absorbing body is wave-shaped;

[0009] A support rod is arranged in the shell, a through hole is arranged in the flow guide cover and penetrates the upper and lower end faces, the support rod is arranged in the through hole and connected with the fixed frame, and the support rod is fixedly connected with the flow guide cover.

[0010] Optionally, the fairing comprises a fairing section and a fixed section, the fairing section is provided with a drill hole, the through hole is arranged on the fairing section, a threaded hole is arranged on the support rod at a position corresponding to the drill hole, the fairing section is fixedly connected with the support rod penetrating through the drill hole and the through hole, and the fixed section is overlapped with the sound absorbing body and is fixedly connected with the sound absorbing body through a screw.

[0011] Optionally, the longitudinal section of the sound absorbing body is in a sine wave shape or a cosine wave shape, and the sound absorbing material in the sound absorbing body is glass wool.

[0012] Optionally, the cross section of the support rod is circular.

[0013] Optionally, the upper and lower ends of the support rod are provided with screw holes, and the support rod is fixedly connected with the fixed frame through bolts.

[0014] The arrayed muffler comprises a support rod for mounting a muffler assembly in a shell, the muffler assembly comprises a sound absorbing body and a fairing fixedly connected at two ends of the sound absorbing body, and the connecting structure between the support rod and the fairing is the mounting structure of the arrayed muffler.

[0015] Compared with the prior art, the arrayed muffler has the following beneficial effects:

[0016] In the arrayed muffler, the shell is provided with a containing space for placing a subsequent muffler assembly, the containing space is provided with openings at two ends, the outer side of the shell is provided with a fixed frame, and the shell is arranged in the fixed frame; the muffler assembly is arranged in the shell, and the muffler assembly comprises a sound absorbing body and a fairing, the fairing comprises two groups, and the two groups of fairings are fixedly arranged at two ends of the sound absorbing body; a plurality of sound absorbing bodies are arranged in the containing space in an arrayed manner, and the fairing is fixedly connected with the shell, so as to fix the muffler assembly and prevent the muffler assembly from deviating; the longitudinal section of the sound absorbing body is in a wave shape, so that the incident angle of sound waves entering the sound absorbing body is increased, the sound absorption coefficient of the sound absorbing body is improved, the sound absorption efficiency is improved, the high-frequency muffling performance of the arrayed muffler is improved, the propagation distance of sound waves in the sound absorbing body is increased in the same and fixed length, the contact opportunity of the sound absorbing body and the sound waves is increased, the reflection times of the sound waves in the muffler are increased, the sound absorption efficiency of the sound absorbing body is improved, and the effect of improving the high-frequency muffling performance is improved; the support rod is arranged in the shell, the fairing is provided with a through hole penetrating the upper and lower end faces of the fairing, the support rod penetrates the through hole and is connected with the fixed frame, and the support rod is fixedly connected with the fairing, so that the connecting position of the sound absorbing body and the support rod is located at the inlet end face or the outlet end face of the shell, the length of the sound absorbing body is effectively increased, and the muffling effect is improved; through the arrangement of the above components, the effective length of the sound absorbing body is increased, and the muffling effect of the muffler is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model discloses a structure schematic view.

[0018] Figure 2 For Figure 1 The cross section schematic view of A-A direction in it.

[0019] Figure 3 The cross section schematic view of the fairing in the utility model.

[0020] Among them, the above-mentioned drawing includes the following figure marks:

[0021] 1, shell, 11, containing space, 2, fixed frame, 31, sound absorbing body, 32, fairing, 321, flow guide section, 322, fixed section, 323, drill hole, 324, through hole, 325, screw, 4, support rod. Specific implementation

[0022] The utility model will be described in further detail in connection with the embodiment and the drawing, but the implementation of the utility model is not limited to this.

[0023] The utility model technical scheme proposes a kind of installation structure of array muffler.

[0024] Refer to Figures 1 to 3 In the embodiment, including:

[0025] Shell 1 is equipped with containing space 11 in shell 1, and the front and rear ends of containing space 11 are equipped with opening, and shell 1 outside is covered with fixed frame 2;

[0026] Muffler component, it is equipped in shell 1, and muffler component includes sound absorbing body 31 and fairing 32, fairing 32 is fixedly arranged in the both ends of sound absorbing body 31, and a plurality of sound absorbing body 31 is arranged in containing space 11 with array, and fairing 32 is fixedly connected with shell 1;And the longitudinal section of sound absorbing body 31 is wave-shaped;

[0027] Support rod 4 is equipped in shell 1, and through hole 324 is arranged on the upper and lower end faces of fairing 32, support rod 4 is arranged in through hole 324 and is connected with fixed frame 2, and support rod 4 is fixedly connected to fairing 32.

[0028] Optionally, in the embodiment, the mounting structure of the array silencer comprises a shell 1, a silencer assembly and a support rod 4, the shell 1 is provided with a containing space 11 for placing the subsequent silencer assembly, the containing space 11 is provided with openings at both front and rear ends, the outer side of the shell 1 is covered with a fixed frame 2, and the shell 1 is arranged in the fixed frame 2; the silencer assembly is arranged in the shell 1, and the silencer assembly comprises sound absorbers 31 and fairings 32, the fairings 32 are arranged in two groups, and the two groups of fairings 32 are fixedly arranged at both ends of the sound absorbers 31, that is, both ends of the sound absorbers 31 are plugged by the fairings 32 to guide the airflow and sound waves; the sound absorbers 31 are arranged in an array in the containing space 11, and the fairings 32 are fixedly connected with the shell 1 to fix the silencer assembly and prevent the silencer assembly from deviating; the longitudinal section of the sound absorber 31 is wavy, which can increase the incident angle of sound waves entering the sound absorber 31, thereby improving the sound absorption coefficient of the sound absorber 31, improving the sound absorption efficiency, and improving the high-frequency sound absorption performance of the array silencer; secondly, in the same and fixed length, the propagation path of sound waves in the sound absorber 31 is increased, which can increase the contact opportunity of the sound absorber 31 and sound waves and increase the reflection times of sound waves in the silencer, thereby improving the sound absorption efficiency of the sound absorber 31 and improving the effect of high-frequency sound absorption performance. Finally, the airflow can flow smoothly, the resistance loss is reduced, and the influence of the array silencer on the aerodynamic performance of the equipment is reduced; the support rod 4 is arranged in the shell 1, the fairing 32 is provided with a through hole 324 penetrating the upper and lower end faces of the fairing 32, the support rod 4 is arranged in the through hole 324 and connected with the fixed frame 2, and the support rod 4 is fixedly connected with the fairing 32, thereby fixing the support rod 4 and the fairing 32, and fixing the support rod 4 and the fixed frame 2, through the above arrangement, the connection position of the sound absorber 31 and the support rod 4 is located at the inlet end face or the outlet end face of the shell 1, thereby effectively increasing the length of the sound absorber 31, thereby further prolonging the propagation path of sound waves in the sound absorber 31 and improving the silencing effect; through the arrangement of the above components, the effective length of the sound absorber 31 is increased, thereby effectively improving the silencing effect of the silencer.

[0029] In the embodiment, the fairing 32 comprises a guide section 321 and a fixed section 322, the fairing 32 can be selected from a polyurethane fairing 32, a wood-plastic composite fairing 32 or a stainless steel fairing 32, the fairing 32 is in a circular arc shape or a prismatic shape, and air flow resistance can be effectively reduced; the guide section 321 is outwardly protruding, the guide section 321 is provided with a drill hole 323, a through hole 324 is arranged on the guide section 321, a threaded hole is arranged on the support rod 4 at a position corresponding to the drill hole 323, that is, the guide section 321 is fixedly connected with the support rod 4 by penetrating the drill hole 323 and the through hole 324 through a fixing bolt, so that the guide section 321 is fixedly connected with the support rod 4, and subsequent replacement of the fairing 32 is facilitated, and the fixed section 322 is lapped with the sound absorbing body 31 and is fixedly connected through a screw 325; compared with a conventional welding or other fixing mode, the fixed section 322 is connected with the sound absorbing body 31 through the screw 325, and subsequent replacement of the sound absorbing body 31 is facilitated, and the fairing 32 is reserved.

[0030] In the embodiment, the longitudinal section of the sound absorbing body 31 is in a sine wave shape or a cosine wave shape, the sine or cosine wave shape fluctuates gently, the sound absorbing efficiency is improved, the air flow resistance is reduced, and the influence of the arrayed muffler on the aerodynamic performance of equipment is reduced; and the sound absorbing material in the sound absorbing body 31 is glass wool, the sound absorbing performance of the glass wool is good, the heat insulation is not easy to self-ignite, and in other embodiments, rock wool or foam cotton can also be selected, which is not limited here.

[0031] In the embodiment, the cross section of the support rod 4 is circular, the support rod 4 with the circular cross section can effectively reduce the ventilation resistance of the muffler, the conventional muffler used in a ventilation system increases the ventilation resistance of the system, that is, the pressure loss of the ventilation system, in order to ensure the ventilation effect, the ventilation system needs to overcome the ventilation resistance caused by the added muffler, and the energy consumption needs to be increased, the smaller the ventilation resistance of the muffler 1, the less the energy consumption that needs to be increased by the system, and compared with the square support rod 4 in the prior art, the circular support rod 4 can reduce the ventilation resistance of the muffler.

[0032] The arrayed muffler comprises a support rod 4 for mounting a muffler assembly in a shell 1, the muffler assembly comprises a sound absorbing body 31 and a fairing 32 fixedly connected at both ends of the sound absorbing body 31, and a connecting structure between the support rod 4 and the fairing 32 is the mounting structure of the arrayed muffler.

[0033] The above-described embodiments only express the implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A mounting structure of an array silencer, characterized by comprising: The application relates to an array-type muffler. The array-type muffler comprises a shell, a sound absorber assembly and a support rod. The shell is internally provided with a containing space, the containing space is provided with an opening at the front and rear ends, and the outer side of the shell is provided with a fixed frame. The sound absorber assembly is arranged in the shell, and the sound absorber assembly comprises sound absorbers and a flow guide cover.

2. The mounting structure for an array silencer according to claim 1, wherein The flow guide cover is fixedly arranged at the two ends of the sound absorbers.

3. The mounting structure for an array silencer according to claim 1, wherein The sound absorbers are arranged in an array in the containing space, and the flow guide cover is fixedly connected with the shell.

4. The mounting structure for an array silencer according to claim 1, wherein The longitudinal section of the sound absorber is in a wave shape.

5. The mounting structure for an array silencer according to claim 2, wherein The support rod is arranged in the shell.

6. An array silencer comprising support rods for mounting a silencer assembly within a housing, the silencer assembly comprising a sound absorber and a fairing attached to both ends of the sound absorber, characterized in that: The flow guide cover is provided with a through hole penetrating the upper and lower end faces. The support rod is arranged in the through hole and connected with the fixed frame. The support rod is fixedly connected with the flow guide cover. The flow guide cover comprises a flow guide section and a fixed section. The flow guide section is provided with a drill hole. The support rod is provided with a threaded hole at the position corresponding to the drill hole. The flow guide section is fixedly connected with the support rod arranged in the through hole through a fixed bolt penetrating the drill hole. The longitudinal section of the sound absorber is in a sine wave shape or a cosine wave shape. The sound absorbing material in the sound absorber is glass wool. The cross section of the support rod is in a circular shape. The upper and lower ends of the support rod are provided with screw holes. The support rod is fixedly connected with the fixed frame through bolts. The connecting structure between the support rod and the flow guide cover is the mounting structure of the array-type muffler according to any one of claims 1-5.

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