Silencing treatment equipment

Abstract

The utility model belongs to the field of silencing equipment, particularly relates to silencing treatment equipment, and aims to solve the problems that the existing silencing equipment only adopts a single silencing material, the silencing treatment effect is poor, the airflow flow and pressure cannot be adjusted according to different use environments, and different silencing materials are inconvenient to replace in different use places. According to the technical scheme, the silencing device comprises a sound box, an air inlet pipe and an air outlet pipe are arranged at the two ends of the silencing box respectively, the air inlet pipe and the air outlet pipe are connected with a noise source and a discharging end respectively, the silencing box is composed of two sealing plates and two side plates, and the two sealing plates are matched with each other and fixedly connected through a plurality of screws. The wave-shaped silencing cavity is adopted, the propagation path of noise in the silencing cavity is effectively increased, noise energy is gradually attenuated in multiple times of reflection and absorption, and therefore the silencing efficiency is improved. The first sound absorption layer and the second sound absorption layer further enhance the sound absorption capability of the equipment, so that the noise is attenuated multiple times.

Description

Technical Field

[0001] The utility model relates to the technical field of noise elimination equipment, in particular to a noise elimination processing device. Background Technique

[0002] With the acceleration of the industrialization process, the noise pollution generated by various mechanical equipment, transportation tools and various factories during production and operation is becoming increasingly serious, which has a serious impact on people's daily life and working environment. Noise not only disturbs people's rest and sleep, but also may cause a series of health problems, such as hearing damage and increased psychological pressure, and noise elimination processing equipment is needed for noise reduction processing.

[0003] The existing noise elimination processing equipment has a relatively simple structure, only uses a single sound absorption material, and the noise elimination processing effect is poor. It cannot adjust the air flow rate and pressure according to different use environments, and it is not convenient to replace different sound absorption materials in different use places;

[0004] In view of the above problems, the utility model document proposes a noise elimination processing device. Content of the Utility Model

[0005] The purpose of the utility model is to solve the shortcomings in the prior art that only a single sound absorption material is used, the noise elimination processing effect is poor, the air flow rate and pressure cannot be adjusted according to different use environments, and it is not convenient to replace different sound absorption materials in different use places, and a noise elimination processing device is proposed.

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

[0007] A noise elimination processing device includes a noise elimination box. An air inlet pipe and an air outlet pipe are respectively arranged at both ends of the noise elimination box. The air inlet pipe and the air outlet pipe are respectively connected to a noise source and a discharge end. The noise elimination box is composed of two sealing plates and two side plates. The two sealing plates cooperate with each other and are fixedly connected by a plurality of screws. The two side plates are respectively fixedly connected to both ends of the sealing plates by screws. The air inlet pipe and the air outlet pipe are respectively fixedly connected to the side plates;

[0008] A sound absorption cavity is arranged in the noise elimination box. A first sound absorption layer is arranged on the inner wall of the sound absorption cavity. A plurality of through holes are arranged on the circumference of the sound absorption cavity. A second sound absorption layer is arranged on the inner wall of the noise elimination box. The second sound absorption layer is located between the sealing plate and the sound absorption cavity;

[0009] An adjusting assembly is arranged inside the air inlet pipe. The adjusting assembly is used to adjust the flow rate and pressure of the air flow.

[0010] In a possible design, the adjusting assembly includes an adjusting box which is fixedly communicated with the circumference of the intake pipe. An adjusting plate is slidably connected inside the adjusting box. Through grooves are respectively formed on both sides of the adjusting plate. Fixed columns are respectively arranged in the through grooves. Both ends of each fixed column are slidably connected with a limiting ring. Two oppositely arranged nuts are respectively threadedly connected to the circumference of each fixed column. Anti-slip textures are arranged in the through grooves.

[0011] In a possible design, the sound absorption cavity is arranged in a wavy shape to increase the propagation path of noise in the sound absorption cavity.

[0012] In a possible design, a plurality of sound absorption sheets are arranged in both the intake pipe and the outlet pipe.

[0013] In a possible design, flanges are fixedly connected to the mutually remote ends of the intake pipe and the outlet pipe.

[0014] In a possible design, both the first sound absorption layer and the second sound absorption layer are made of fiberglass.

[0015] In a possible design, the plurality of sound absorption sheets respectively located in the intake pipe and the outlet pipe are all arranged in a ring shape.

[0016] In this application, when the gas generated by the noise source enters the noise elimination processing device through the intake pipe, it first passes through the adjusting box of the adjusting assembly. By adjusting the position of the adjusting plate, the air flow rate and pressure entering the sound absorption cavity can be adjusted to meet the requirements of different working conditions.

[0017] Subsequently, the gas enters the sound absorption cavity. Due to the wavy design of the sound absorption cavity, the propagation path of the gas in it is greatly extended. At the same time, the fiberglass materials of the first sound absorption layer and the second sound absorption layer can effectively absorb the noise energy, further reducing the noise level.

[0018] Before being discharged through the outlet pipe, the gas will also pass through a plurality of internal ring-shaped sound absorption sheets. These sound absorption sheets can disperse and weaken the noise energy again, and the noise level of the finally discharged gas is significantly reduced.

[0019] Beneficial effects:

[0020] In this utility model, for the noise elimination processing device, the sound absorption cavity with a wavy design effectively increases the propagation path of noise in it, enabling the noise energy to gradually decay during multiple reflections and absorptions, thereby improving the noise elimination efficiency. At the same time, the setting of the first sound absorption layer and the second sound absorption layer further enhances the sound absorption ability of the device, achieving multiple attenuations of noise;

[0021] In the present utility model, for the described noise elimination processing device, the adjustment assembly allows users to adjust the flow rate and pressure of the air flow according to actual needs, so as to meet the noise control requirements under different working conditions. The noise elimination box adopts a modular design, and the connection between components is simple and the disassembly is convenient, facilitating the replacement of other types of sound-absorbing materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a front view structural schematic diagram of a noise elimination processing device proposed by the present utility model;

[0023] Figure 2 is a front view sectional structural schematic diagram of a noise elimination processing device proposed by the present utility model;

[0024] Figure 3 is an exploded structural schematic diagram of the adjustment assembly of a noise elimination processing device proposed by the present utility model;

[0025] Figure 4 is an exploded structural schematic diagram of the noise elimination box of a noise elimination processing device proposed by the present utility model.

[0026] In the figure: 1, noise elimination box; 2, intake pipe; 3, outlet pipe; 4, sealing plate; 5, side plate; 6, adjustment box; 7, adjustment plate; 8, second sound-absorbing layer; 9, through hole; 10, sound-absorbing cavity; 11, noise elimination sheet; 12, sliding groove; 13, fixed column; 14, limiting ring; 15, nut; 16, flange; 17, first sound-absorbing layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0028] Embodiment 1

[0029] Refer to Figures 1-4 , a noise elimination processing device, including: a noise elimination box 1, made of stainless steel material to ensure its durability and sealing performance. The noise elimination box 1 is composed of two sealing plates 4 and two side plates 5, and is tightly fixed and connected by screws to ensure the stability and sealing performance of the overall structure.

[0030] The intake pipe 2 and the outlet pipe 3 are respectively arranged at both ends of the noise elimination box 1 and are used to connect the noise source and the discharge end. The intake pipe 2 and the outlet pipe 3 are connected to the external pipeline by flanges 16, which is convenient for installation and disassembly.

[0031] The sound-absorbing cavity 10 is designed inside the soundproof box 1 and has a wavy structure to increase the propagation path of noise therein, thereby improving the soundproof effect. The inner wall of the sound-absorbing cavity 10 is covered with a first sound-absorbing layer 17, which is made of fiberglass and can effectively absorb noise.

[0032] The second sound-absorbing layer 8 is located between the sealing plate 4 and the sound-absorbing cavity 10 and is also made of fiberglass, further enhancing the soundproofing ability of the device.

[0033] The adjustment box 6 is fixedly connected to the circumference of the intake pipe 2 and is internally provided with an adjustment plate 7. The adjustment plate 7 is matched with the fixed columns 13 through the sliding grooves 12 on both sides to achieve sliding adjustment. The two ends of the fixed columns 13 are provided with limiting rings 14 connected in a sliding manner, and the adjustment plate 7 is fixed at the required position by two oppositely arranged nuts 15 to prevent it from sliding. The sliding grooves 12 are provided with anti-slip textures to improve the stability during the adjustment process.

[0034] Embodiment 2

[0035] Reference Figures 1-4 , based on Embodiment 1, the improvement is as follows:

[0036] A plurality of soundproofing sheets 11 arranged in a ring shape are provided in both the intake pipe 2 and the exhaust pipe 3. These soundproofing sheets 11 adopt a multi-layer structure and can further disperse and weaken the noise energy.

[0037] As described above, it is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A noise cancellation processing device, characterized in that, Comprising: A silencing box (1), with an air inlet pipe (2) and an air outlet pipe (3) respectively provided at both ends of the silencing box (1). The air inlet pipe (2) and the air outlet pipe (3) are respectively connected to a noise source and a discharge end. The silencing box (1) is composed of two sealing plates (4) and two side plates (5). The two sealing plates (4) cooperate with each other and are fixedly connected by a plurality of screws. The two side plates (5) are respectively fixedly connected to both ends of the sealing plate (4) by screws. The air inlet pipe (2) and the air outlet pipe (3) are respectively fixedly connected to the side plates (5); A silencing cavity (10) is provided inside the silencing box (1). A first sound-absorbing layer (17) is provided on the inner wall of the silencing cavity (10). A plurality of through holes (9) are provided on the circumference of the silencing cavity (10). A second sound-absorbing layer (8) is provided on the inner wall of the silencing box (1), and the second sound-absorbing layer (8) is located between the sealing plate (4) and the silencing cavity (10); An adjusting assembly, which is arranged inside the air inlet pipe (2) and is used to adjust the flow rate and pressure of the air flow.

2. The noise elimination processing device according to claim 1, characterized in that, The adjusting assembly includes an adjusting box (6), and the adjusting box (6) is fixedly communicated with the circumference of the air inlet pipe (2). An adjusting plate (7) is slidably connected inside the adjusting box (6). Through grooves (12) are respectively provided on both sides of the adjusting plate (7). Fixed columns (13) are respectively provided inside the through grooves (12). Both ends of the fixed column (13) are slidably connected with limiting rings (14). Two oppositely arranged nuts (15) are respectively threadedly connected to the circumference of the fixed column (13). Anti-slip textures are provided inside the through grooves (12).

3. The noise elimination processing device according to claim 1, characterized in that, The silencing cavity (10) is arranged in a wavy shape to increase the propagation path of noise inside the silencing cavity (10).

4. A noise cancellation processing device according to claim 1, characterized in that, A plurality of silencing sheets (11) are provided inside both the air inlet pipe (2) and the air outlet pipe (3).

5. The noise elimination processing device according to claim 4, characterized in that, Flanges (16) are respectively fixedly connected to the ends of the air inlet pipe (2) and the air outlet pipe (3) that are away from each other.

6. The noise elimination processing device according to claim 1, characterized in that, Both the first sound-absorbing layer (17) and the second sound-absorbing layer (8) are made of fiberglass material.

7. An anechoic processing device according to claim 5, characterized in that, The plurality of silencing sheets (11) respectively located inside the air inlet pipe (2) and the air outlet pipe (3) are all arranged in a ring shape.

Images