Silencing structure of air inlet and exhaust shaft of diesel generator room

Abstract

The utility model relates to the technical field of noise reduction of a generator room, in particular to a noise reduction structure of an air intake and exhaust shaft of a diesel generator room, which comprises a machine room, the machine room comprises an original wall body, the air intake and exhaust shaft is arranged on the original wall body, a noise reduction sheet is arranged on an air intake and exhaust fan, and a noise reduction component is embedded on the original wall body on the side of the air intake and exhaust fan. The noise reduction component comprises a fixing framework fixedly connected with an original wall, the fixing framework is filled with sound absorption and insulation cotton and a packaging microwell plate, and the problem that in the prior art, noise reduction is conducted only through noise reduction pieces, and the noise reduction effect is poor is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of generator room silencing, in particular to a silencing structure for an air inlet and exhaust shaft of a diesel generator room. Background Art

[0002] Noise refers to the sound produced by the irregular vibrations of a sound-producing object. Sound is generated by the vibration of an object and propagates in the form of waves within a medium. When noise negatively impacts people and the surrounding environment, it constitutes noise pollution. Since the Industrial Revolution, the creation and use of various mechanical devices has brought prosperity and progress to humanity, but it has also generated an increasing amount of noise, which has become increasingly intense. Noise not only damages hearing but can also induce a variety of cancer-causing and fatal diseases, and disrupts people's lives and work.

[0003] Diesel generators are usually installed in diesel engine rooms, and diesel generators generate loud noise when working, so it is usually necessary to design a soundproofing system for the diesel engine room.

[0004] At present, the noise reduction design of the diesel engine room air inlet and exhaust shaft mostly adopts the form of installing silencer inserts in the air shaft to solve the noise problem. The noise reduction effect can only be achieved by increasing the depth of the silencer and adjusting the spacing between the pieces, which cannot solve the noise problem to the maximum extent. Utility Model Content

[0005] Aiming at the deficiencies of the prior art, the utility model provides a sound-absorbing structure for an air inlet and exhaust shaft of a diesel generator room, which effectively solves the problem in the prior art of poor sound-absorbing effect due to the simple use of sound-absorbing sheets for sound-absorbing.

[0006] In order to solve the above problems, the technical solution adopted by the present invention is:

[0007] A sound-absorbing structure for an air inlet and exhaust shaft in a diesel generator room comprises a machine room, wherein the machine room comprises an original wall, an air inlet and exhaust shaft is opened on the original wall, a sound-absorbing sheet is provided on the air inlet and exhaust shaft, a sound-absorbing component is embedded in the original wall on the side of the air inlet and exhaust shaft, and the sound-absorbing component comprises a fixed frame fixedly connected to the original wall, and the fixed frame is filled with sound-absorbing and insulating cotton and an encapsulated microporous plate.

[0008] Furthermore, the fixed frame includes a transverse frame and a vertical frame, and the transverse frame and the vertical frame are cross-connected.

[0009] Furthermore, the sound-absorbing and insulating cotton includes glass fiber cotton and glass fiber cloth, the microporous plate includes a punched aluminum gusset plate, and the glass fiber cloth is arranged between the punched aluminum gusset plate and the glass fiber cotton.

[0010] Furthermore, a base is provided at the bottom of the machine room.

[0011] The utility model has novel structure, ingenious design, simple and convenient operation, and has the following advantages compared with the existing technology:

[0012] Horizontal and vertical frames are set on the walls around the air inlet and exhaust shafts of the original walls of the machine room. The horizontal and vertical frames are cross-fixed and connected to form a grid structure, which can better fix the position of the filled glass fiber cotton and glass cloth as well as the punched aluminum gusset plates, and ensure that the glass fiber cotton, glass cloth and punched aluminum gusset plates fit together. It not only has strong sound absorption, but also has heat absorption effect, saving energy, thereby achieving sound absorption and insulation treatment of the original walls of the air inlet and exhaust shafts. At the same time, in conjunction with the original sound-absorbing sheet design, the air inlet and exhaust shafts are subjected to double-effect sound absorption, and the sound absorption effect is better. This can not only increase the sound absorption area of the air shaft, but also effectively reduce the sound energy reflection of the original air shaft wall, thereby maximizing the sound absorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the main view of the machine room of the present utility model;

[0014] Figure 2 This is a schematic structural diagram of the silencer component of the present utility model;

[0015] Figure 3 It is a cross-sectional view of the original wall of the present utility model;

[0016] Numbers in the figure: 1. Original wall; 2. Horizontal frame; 3. Vertical frame; 4. Glass fiber cotton; 5. Glass fiber cloth; 6. Perforated aluminum gusset plate; 7. Machine room; 8. Air inlet and exhaust shaft; 9. Base; 10. Silencers. DETAILED DESCRIPTION

[0017] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0018] like Figure 1-3 As shown, a sound-absorbing structure of the air inlet and exhaust shaft of a diesel generator room includes a machine room 7, wherein the machine room 7 includes an original wall 1, an air inlet and exhaust shaft 8 is opened on the original wall 1, and a sound-absorbing plate 10 is provided on the air inlet and exhaust shaft 8. A sound-absorbing component is embedded in the original wall 1 on the side of the air inlet and exhaust shaft 8, and the sound-absorbing component includes a fixed frame fixedly connected to the original wall 1, and the fixed frame is filled with sound-absorbing insulation cotton and encapsulated microporous plates respectively.

[0019] When the present invention is in use, the walls around the air inlet and exhaust shaft 8 of the original wall 1 of the machine room 7 are subjected to sound-absorbing and sound-insulating treatment by filling sound-absorbing and insulating cotton in the fixed keel and encapsulating microporous plates. At the same time, in conjunction with the original sound-absorbing sheet 10 design, the air inlet and exhaust shaft 8 is subjected to double-effect sound-absorbing and sound-insulating treatment, resulting in a better sound-absorbing effect.

[0020] The fixed frame includes a transverse frame 2 and a vertical frame, and the transverse frame 2 and the vertical frame 3 are cross-connected.

[0021] like Figure 2 As shown, the horizontal frame 2 and the vertical frame 3 are cross-fixed and connected to form a grid structure, which can better fix the position of the filled sound-absorbing and insulating panels and the encapsulated microporous panels, and the grid structure forms grid holes, and the sound can be absorbed by the sound-absorbing and insulating panels and the encapsulated microporous panels through the grid holes.

[0022] The sound-absorbing and insulating cotton includes glass fiber cotton 4 and glass fiber cloth 5 , the microporous plate includes a punched aluminum gusset plate 6 , and the glass fiber cloth 5 is arranged between the punched aluminum gusset plate 6 and the glass fiber cotton 4 .

[0023] like Figure 2 As shown, the glass fiber cotton 4 and the glass cloth 5 are both materials with good absorption effect. The back of the punched aluminum gusset plate 6 is affixed with glass fiber cotton 4 and glass cloth 5, which not only have strong sound absorption properties, but also have heat absorption effect, saving energy.

[0024] A base 9 is provided at the bottom of the machine room 7 .

[0025] like Figure 1 As shown, the base 9 supports the machine room 7 .

[0026] The working process of the present invention is as follows: when the present invention is in use, a transverse frame 2 and a vertical frame 3 are arranged on the walls around the air inlet and exhaust shaft 8 of the original wall 1 of the machine room 7. The transverse frame 2 and the vertical frame 3 are cross-fixed and connected to form a grid structure, which can better fix the positions of the filled glass fiber cotton 4 and glass fiber cloth 5 and the punched aluminum gusset plate 6, and ensure that the glass fiber cotton 4 and glass fiber cloth 5 and the punched aluminum gusset plate 6 are fitted together, which not only has strong sound absorption, but also has heat absorption effect, saving energy, thereby realizing sound absorption and insulation treatment of the original wall of the air inlet and exhaust shaft 8, and at the same time, in conjunction with the original sound-absorbing plate 10 design, the air inlet and exhaust shaft 8 is subjected to double-effect sound elimination, and the sound-absorbing effect is better.

[0027] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art may make various modifications, additions, or substitute similar methods to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A noise reduction structure for an air inlet and outlet shaft of a diesel generator room, comprising a machine room (7), characterized in that: The machine room (7) includes an original wall (1), an air inlet and exhaust shaft (8) is opened on the original wall (1), a sound-absorbing plate (10) is provided on the air inlet and exhaust shaft (8), and a sound-absorbing component is embedded in the original wall (1) on the side of the air inlet and exhaust shaft (8), and the sound-absorbing component includes a fixed frame fixedly connected to the original wall (1), and the fixed frame is filled with sound-absorbing and insulating cotton and a packaged microporous plate.

2. The noise reduction structure of the air inlet and exhaust shaft of a diesel generator room according to claim 1 is characterized in that: The fixed frame comprises a transverse frame (2) and a vertical frame, and the transverse frame (2) and the vertical frame (3) are cross-connected.

3. The noise reduction structure of the air inlet and exhaust shaft of a diesel generator room according to claim 1 is characterized in that: The sound-absorbing and insulating cotton comprises glass fiber cotton (4) and glass fiber cloth (5); the microporous plate comprises a punched aluminum gusset plate (6); and the glass fiber cloth (5) is arranged between the punched aluminum gusset plate (6) and the glass fiber cotton (4).

4. The noise reduction structure of the air inlet and exhaust shaft of a diesel generator room according to claim 1 is characterized in that: A base (9) is provided at the bottom of the machine room (7).

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