Honeycomb-imitated energy absorption and noise reduction structure for noise control

Abstract

The utility model belongs to the technical field of noise control, and particularly relates to a noise control honeycomb-imitated energy absorption and noise reduction structure which comprises a noise reduction body, the noise reduction body is of a cylinder structure, one end of the noise reduction body is provided with a conical cavity, and a plurality of flow guide channels are evenly distributed in the noise reduction body in the axial direction of the noise reduction body in a penetrating mode. A plurality of flow guide channels are formed in the noise reduction main body, so that the noise reduction main body forms a honeycomb structure in the axial direction; and a spiral air duct is arranged in each flow guide channel. When the energy-absorbing and noise-reducing structure is used, one side of the noise-reducing main body with the conical cavity is an air inlet end, noise-containing airflow is firstly blown into the conical cavity, and eruption type strong airflow can be effectively transited and smoothed in cooperation with the spiral air channel in the flow guide channel, so that the turbulence effect of air and blasting noise can be effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of noise prevention and control, and particularly relates to a noise prevention and control honeycomb-like energy absorption and noise reduction structure. Background Art

[0002] Noise is harmful to the human body systemically, causing changes in the auditory system as well as affecting the non-auditory system. Therefore, it is very necessary to prevent and control noise in work, life and other scenarios.

[0003] In the related art, aerodynamic equipment is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. The wind wheel in the aerodynamic equipment takes in air axially and discharges air radially, and uses centrifugal force to do work to increase the air pressure. According to the blade angle, it can be divided into forward-inclined wind wheel, radial wind wheel and backward-inclined wind wheel. When the aerodynamic equipment is in operation, its air outlet is prone to generate noise, especially during the air flow at the air outlet, air turbulence effect and blasting noise are prone to occur.

[0004] Traditional sound-absorbing and noise-reducing structures have poor noise reduction effects and may not be ideal in terms of noise absorption. Therefore, in order to reduce the noise at the air outlet, it is necessary to configure a noise reduction structure with better energy absorption and noise reduction effects at the airflow outlet of the aerodynamic equipment. Utility Model Content

[0005] The purpose of the embodiment of the utility model is to provide a noise prevention and control honeycomb-like energy absorption and noise reduction structure, aiming to solve the technical problem that the traditional sound-absorbing and noise-reducing structure has poor noise reduction effect and may not have an ideal noise absorption effect.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] In one embodiment of the utility model, a noise prevention and control honeycomb-like energy absorption and noise reduction structure is provided, and the energy absorption and noise reduction structure comprises:

[0008] The noise reduction body adopts a cylindrical structure, one end of the noise reduction body has a conical cavity, and a number of guide channels are evenly distributed and opened on the noise reduction body along the axial direction of the noise reduction body. The several guide channels opened on the noise reduction body make the noise reduction body form a honeycomb structure along its axial direction; each guide channel has a spiral air duct;

[0009] The shell comprises a first shell and a second shell. Both the first shell and the second shell are cylindrical structures and are used to install the cylindrical noise reduction body inside the first shell and the second shell.

[0010] Furthermore, a limiting ring is fixedly arranged on the outer circumferential surface of the noise reduction body, and the provided limiting ring is used to fix the noise reduction body.

[0011] Further, one end of the first shell has a first connecting flange;

[0012] One end of the second shell has a second connecting flange matched with the first connecting flange, and the other end of the second shell has a third connecting flange.

[0013] Furthermore, the first connecting flange and the second connecting flange are connected and fixed by a plurality of connecting bolts, thereby realizing the connection and installation between the first shell and the second shell.

[0014] Furthermore, when the first shell and the second shell are connected and fixed, the limiting ring is clamped between the first connecting flange and the second connecting flange, so that the noise reduction body disposed in the shell remains fixed.

[0015] Furthermore, the second shell is detachably fixedly mounted on the air outlet by means of screws, wherein an open portion of the air outlet is provided with an aerodynamic device, and the air outlet is connected to the third connecting flange by means of screws.

[0016] The beneficial effects of the noise prevention and control honeycomb-like energy absorption and noise reduction structure of the utility model are:

[0017] First, during the air flow process, the utility model effectively decomposes the airflow through the chamber vibration of the guide channel and the friction of the material surface, converts part of it into heat energy, reduces the noise power, and thus weakens the airflow noise;

[0018] Second, when the energy-absorbing and noise-reducing structure of the utility model is used, one side of the noise-reducing body having a conical cavity is the air inlet end, and the noise-containing airflow is first blown into the conical cavity, and the spiral air duct in the guide channel can effectively transition and smooth the eruptive strong airflow, thereby effectively reducing the turbulent effect of the air and the blasting noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention.

[0020] Figure 1 A three-dimensional diagram of a noise prevention and control honeycomb-like energy absorption and noise reduction structure of the utility model;

[0021] Figure 2 A three-dimensional diagram of the noise prevention and control honeycomb-like energy absorption and noise reduction structure of the utility model from another perspective;

[0022] Figure 3 for Figure 1 Bottom view of the honeycomb-like energy absorption and noise reduction structure for medium noise prevention;

[0023] Figure 4 for Figure 1 A top view of the honeycomb-like energy absorption and noise reduction structure for medium noise prevention;

[0024] Figure 5 This is a structural schematic diagram of the noise reduction body in the noise prevention and control honeycomb-like energy absorption and noise reduction structure of the utility model;

[0025] Figure 6 for Figure 5 A schematic diagram of another perspective of the noise reduction subject provided;

[0026] Figure 7 A cross-sectional view of the noise reduction body provided by the utility model;

[0027] Figure 8 This is a schematic diagram of the application of the noise prevention and control honeycomb-like energy absorption and noise reduction structure of the utility model in aerodynamic equipment.

[0028] The reference numerals are as follows:

[0029] 1. first housing; 11. first connecting flange;

[0030] 2. Second housing; 21. Second connecting flange; 22. Third connecting flange;

[0031] 3. Connecting bolts;

[0032] 4. Noise reduction body; 41. Conical cavity; 42. Guide channel; 43. Limiting ring; 44. Spiral air duct;

[0033] 5. Air outlet; 51. Aerodynamic equipment. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0035] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0036] like Figure 5-Figure 7As shown, in one embodiment of the utility model, a noise prevention and control honeycomb-like energy absorption and noise reduction structure is provided, and the energy absorption and noise reduction structure includes a noise reduction body 4. The noise reduction body 4 can be round or square, and is not specifically limited. Preferably, the noise reduction body 4 of the utility model adopts a cylindrical structure, and one end of the noise reduction body 4 has a conical cavity 41. A plurality of guide channels 42 are evenly distributed and penetrated on the noise reduction body 4 along the axial direction of the noise reduction body 4. The plurality of guide channels 42 opened on the noise reduction body 4 enable the noise reduction body 4 to form a honeycomb structure along its axial direction.

[0037] During the air flow, the airflow is effectively decomposed through the vibration of the chamber of the guide channel 42 and the friction of the material surface, so that part of it is converted into heat energy, reducing the noise sound power, thereby weakening the airflow noise.

[0038] Please continue reading Figure 5-Figure 7 In the embodiment of the present disclosure, each guide channel 42 has a spiral air duct 44. When the energy absorption and noise reduction structure of the present disclosure is used, one side of the noise reduction body 4 with the conical cavity 41 is the air inlet end. The noise-containing airflow is first blown into the conical cavity 41, and the spiral air duct 44 in the guide channel 42 can effectively transition and smooth the eruptive strong airflow, thereby effectively reducing the turbulent effect of the air and the blasting noise.

[0039] Preferably, the guide channel 42 of the embodiment of the present disclosure is a hexagonal structure, and the spiral air duct 44 is arranged on the inner cavity wall of the guide channel 42 .

[0040] Furthermore, a limiting ring 43 is fixedly disposed on the outer circumferential surface of the noise reduction body 4, and the limiting ring 43 is used to fix the noise reduction body 4. The installation structure of the noise reduction body 4 is described below.

[0041] As a preference, Figure 1-Figure 4 As shown, the energy absorption and noise reduction structure provided in the embodiment of the present disclosure further includes a shell, the shell includes a first shell 1 and a second shell 2, the first shell 1 and the second shell 2 are both cylindrical structures, and are used to install the cylindrical noise reduction body 4 inside the first shell 1 and the second shell 2, wherein: one end of the first shell 1 has a first connecting flange 11;

[0042] One end of the second shell 2 has a second connecting flange 21 matched with the first connecting flange 11 , and the other end of the second shell 2 has a third connecting flange 22 .

[0043] Specifically, in the embodiment of the present disclosure, the first connecting flange 11 and the second connecting flange 21 are connected and fixed by a plurality of connecting bolts 3, thereby realizing the connection and installation between the first shell 1 and the second shell 2;

[0044] In the embodiment of the utility model, when the first shell 1 and the second shell 2 are connected and fixed, the limit ring 43 is clamped between the first connecting flange 11 and the second connecting flange 21, so that the noise reduction body 4 arranged in the shell remains fixed.

[0045] Please continue reading Figure 1 and Figure 2 In the embodiment of the utility model, the second shell 2 is detachably fixedly mounted on the air outlet 5 by screws, wherein the open portion of the air outlet 5 has an aerodynamic device 51, and the air outlet 5 is connected to the third connecting flange 22 by screws.

[0046] The energy absorption and noise reduction structure provided in the embodiment of the present disclosure is used to reduce the noise of the airflow. Figure 8 As shown, an optional application scenario of the energy absorption and noise reduction structure provided by the present disclosure is provided. The energy absorption and noise reduction structure is installed at the air outlet 5 of the aerodynamic equipment 51, and is used to effectively reduce the turbulence effect and explosion noise of the air during the air flow process.

[0047] The above only provides an optional scenario in which the energy absorption and noise reduction structure provided by the present disclosure is applied to an aerodynamic device 51. The energy absorption and noise reduction structure of the present disclosure is still applicable to other scenarios requiring noise reduction and is not limited here.

[0048] The above solutions are only an illustration of a preferred example, but are not limited thereto. When implementing the present utility model, appropriate replacement and / or modification can be performed according to user needs.

[0049] The number of devices and processing scales described here are used to simplify the description of the utility model. Applications, modifications and variations of the utility model are obvious to those skilled in the art.

[0050] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily realized. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described here.

Claims

1. A noise prevention and control honeycomb-like energy absorption and noise reduction structure, characterized in that: include: A noise reduction body (4), the noise reduction body (4) adopts a cylindrical structure, one end of the noise reduction body (4) has a conical cavity (41), and a plurality of flow guide channels (42) are evenly distributed and penetrated on the noise reduction body (4) along the axial direction of the noise reduction body (4), and the plurality of flow guide channels (42) provided on the noise reduction body (4) enable the noise reduction body (4) to form a honeycomb structure along its axial direction; each flow guide channel (42) has a spiral air duct (44); The shell comprises a first shell (1) and a second shell (2), wherein the first shell (1) and the second shell (2) are both cylindrical structures and are used for installing a cylindrical noise reduction body (4) inside the first shell (1) and the second shell (2).

2. The noise prevention and control honeycomb energy absorption and noise reduction structure according to claim 1 is characterized in that: A limiting ring (43) is fixedly arranged on the outer circumferential surface of the noise reduction body (4).

3. The noise prevention and control honeycomb energy absorption and noise reduction structure according to claim 2 is characterized in that: One end of the first shell (1) has a first connecting flange (11); One end of the second shell (2) has a second connecting flange (21) matching with the first connecting flange (11), and the other end of the second shell (2) has a third connecting flange (22).

4. The noise prevention and control honeycomb-like energy absorption and noise reduction structure according to claim 3 is characterized in that: The first connecting flange (11) and the second connecting flange (21) are connected and fixed by means of a plurality of connecting bolts (3).

5. The noise prevention and control honeycomb-like energy absorption and noise reduction structure according to claim 4 is characterized in that: When the first shell (1) and the second shell (2) are connected and fixed, the limiting ring (43) is clamped between the first connecting flange (11) and the second connecting flange (21).

6. The noise prevention and control honeycomb energy absorption and noise reduction structure according to claim 5 is characterized in that: The second shell (2) is detachably fixedly mounted on the air outlet (5) by means of screws, wherein an open portion of the air outlet (5) is provided with an aerodynamic device (51), and the air outlet (5) is connected to the third connecting flange (22) by means of screws.

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