CN218151673U - A New Type of Fan Muffling Device - Google Patents

Abstract

The utility model discloses a novel fan amortization device, including the casing, the left side fixedly connected with mounting panel of casing, the left inside fixedly connected with amortization filter screen of casing, the first acoustical board of right side fixedly connected with of amortization filter screen, first amortization groove has been seted up to the internal surface of first acoustical board, and the internal surface fixed connection of first acoustical board has a plurality of amortization baffle, and the amortization baffle is upper and lower alternate arrangement in the inside of first acoustical board. The utility model discloses a set up the amortization filter screen, first acoustical board, first amortization groove, the amortization baffle, the second acoustical board, the hush pipe, inhale the cooperation of sound cotton and amortization otter board and use, reached the better advantage of carrying out the amortization of the noise that produces the fan, solved current silencing device noise cancelling effect and reduced, thereby the noise that brings along the great fan of flow is also great relatively, can not satisfy the environmental protection requirement, the problem of adverse effect can all be brought to environment and people on every side simultaneously.

Description

A New Type of Fan Muffling Device

technical field

The utility model belongs to the technical field of novel fan noise reduction, in particular to a novel fan noise reduction device.

Background technique

The fan is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas. It is a driven fluid machine. Fan is China's customary abbreviation for gas compression and gas conveying machinery. Usually, fans include ventilators, blowers, and wind generators. Fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships and buildings. , Dust extraction and cooling, ventilation and induction of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selection of grain, wind tunnel wind source and inflation and propulsion of hovercraft, etc.

Nowadays, various types of fans are needed as a tool for processing and manufacturing or construction in both production and construction, and in order to meet the environment with high ventilation requirements, people will choose fans with larger flow rates. The problem is: the noise reduction effect of the existing noise reduction device is reduced, so the noise brought by the fan with a large flow rate is relatively large, which cannot meet the environmental protection requirements, and at the same time will bring adverse effects on the surrounding environment and people. .

Utility model content

Aiming at the problems existing in the prior art, the utility model provides a new fan noise reduction device, which has the advantage of better noise reduction for the noise generated by the fan, and solves the problem that the noise reduction effect of the existing noise reduction device is reduced, so that it is accompanied by The noise caused by the fan with a large flow rate is also relatively large, which cannot meet the environmental protection requirements, and at the same time will bring adverse effects on the surrounding environment and people.

The utility model is achieved in this way. A novel fan noise reduction device includes a housing, the left side of the housing is fixedly connected with a mounting plate, and the inside of the left side of the housing is fixedly connected with a noise reduction filter. The right side of the filter screen is fixedly connected with a first sound-absorbing plate, the inner surface of the first sound-absorbing plate is provided with a first sound-absorbing groove, and the inner surface of the first sound-absorbing plate is fixedly connected with several sound-absorbing baffles, and the sound-absorbing plate The baffles are arranged alternately up and down inside the first sound-absorbing plate, the inner surface of the housing is fixedly connected to the second sound-absorbing plate, the top of the shell is fixedly connected with a sound-absorbing pipe, and the inner wall of the sound-absorbing pipe is fixedly connected with a sound-absorbing pipe. The right side of the first sound-absorbing board is fixedly connected with a sound-absorbing net plate.

As preferred in the present invention, the right side of the housing is fixedly connected with a dust-proof filter, and the left side of the dust-proof filter is in contact with the sound-absorbing screen.

As preferred in the present invention, the inside of the sound-absorbing pipe is fixedly connected with a screen, and the material of the screen has a sound-absorbing function.

As preferred in the present invention, the inner wall of the housing is provided with several sound-absorbing holes, and the sound-absorbing holes are evenly distributed on the inner wall of the housing.

As a preference of the present invention, several second sound-absorbing grooves are opened on the left side of the sound-absorbing baffle, and the second sound-absorbing grooves are evenly distributed on the left side surface of the sound-absorbing baffle.

As a preferred embodiment of the present invention, the material used for the first sound-absorbing plate and the second sound-absorbing plate is melamine foam.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. The utility model achieves the noise generated by the fan through the combination of the sound-absorbing filter, the first sound-absorbing plate, the first sound-absorbing groove, the sound-absorbing baffle, the second sound-absorbing plate, the sound-absorbing pipe, the sound-absorbing cotton and the sound-absorbing net plate. The advantage of better noise reduction solves the problem that the noise reduction effect of the existing noise reduction device is reduced, so the noise brought by the fan with a large flow rate is relatively large, which cannot meet the environmental protection requirements, and at the same time, it is harmful to the surrounding environment and people. will have adverse effects.

2. The utility model can prevent the dust in the air from entering the silencer device by setting the dust-proof filter net, and avoid the influence of dust on the silencer device.

3. The utility model can prevent impurities and rubbish in the air from falling into the muffler device by setting a retaining net, and prevent garbage and impurities from causing damage to the muffler device.

4. The utility model can absorb the noise generated by the fan by setting the sound-absorbing holes, and improve the sound-absorbing efficiency of the sound-absorbing device.

5. The utility model is provided with the second sound-absorbing groove, which can further absorb the noise when the noise passes through the sound-absorbing baffle, thereby improving the sound-absorbing effect of the sound-absorbing device.

6. The utility model adopts melamine foam as the material used for the first and second sound-absorbing plates, so that the first and second sound-absorbing plates can better silence noise and improve the sound-absorbing efficiency of the sound-absorbing device.

Description of drawings

Fig. 1 is the structural representation that the utility model embodiment provides;

Fig. 2 is a front sectional view of the noise reduction device provided by the embodiment of the utility model;

Fig. 3 is a left sectional view of the noise reduction device provided by the embodiment of the utility model.

In the figure: 1. Shell; 2. Mounting plate; 3. Noise reduction filter; 4. First noise reduction plate; 5. First noise reduction groove; 6. Noise reduction baffle; 7. Second noise reduction board; 9. Sound-absorbing cotton; 10. Noise-absorbing screen; 11. Dust-proof filter; 12. Blocking net; 13. Sound-absorbing holes;

detailed description

In order to further understand the invention content, characteristics and effects of the present utility model, the following examples are given, and detailed descriptions are given below in conjunction with the accompanying drawings.

Below in conjunction with accompanying drawing, the structure of the present utility model is described in detail.

As shown in Figures 1 to 3, a new type of fan noise reduction device provided by the embodiment of the utility model includes a housing 1, the left side of the housing 1 is fixedly connected with a mounting plate 2, and the inner side of the left side of the housing 1 is fixedly connected There is a sound-absorbing filter screen 3, the right side of the sound-absorbing filter screen 3 is fixedly connected with a first sound-absorbing plate 4, the inner surface of the first sound-absorbing plate 4 is provided with a first sound-absorbing groove 5, and the inner surface of the first sound-absorbing plate 4 is fixedly connected with several A sound-absorbing baffle 6, the sound-absorbing baffles 6 are alternately arranged up and down inside the first sound-absorbing plate 4, the inner surface of the housing 1 is fixedly connected to the second sound-absorbing plate 7, and the top of the housing 1 is fixedly connected with a sound-absorbing pipe 8, the sound-absorbing The inner wall of the pipe 8 is fixedly connected with the sound-absorbing cotton 9 , and the right side of the first sound-absorbing board 4 is fixedly connected with the sound-absorbing screen 10 .

Referring to FIG. 2 , the right side of the housing 1 is fixedly connected with a dustproof filter 11 , and the left side of the dustproof filter 11 is in contact with the sound-absorbing screen 10 .

Adopt the above solution: by setting the dust-proof filter screen 11, the dust in the air can be prevented from entering into the muffler, the influence of the dust on the muffler can be avoided, and the muffler effect of the muffler can be avoided from being reduced.

Referring to FIG. 1 and FIG. 2 , the inside of the muffler pipe 8 is fixedly connected with a retaining net 12 , and the material of the retaining net 12 has a sound-absorbing function.

Adopting the above scheme: by setting the retaining net 12, impurities and garbage in the air can be prevented from falling into the noise reduction device, preventing garbage and impurities from causing damage to the noise reduction device, and the noise reduction device is protected.

Referring to FIG. 2 , the inner wall of the housing 1 is provided with several sound-absorbing holes 13 , and the sound-absorbing holes 13 are evenly distributed on the inner wall of the housing 1 .

Adopt the above solution: by setting the sound absorption hole 13, the noise generated by the fan can be absorbed, the noise reduction efficiency of the noise reduction device is improved, and the hearing of the user is protected.

Referring to FIG. 3 , several second silencing grooves 14 are provided on the left side of the baffle 6 , and the second silencing grooves 14 are evenly distributed on the left side of the baffle 6 .

Adopt the above solution: by setting the second noise reduction groove 14, when the noise passes through the noise reduction baffle plate 6, the noise can be further silenced and absorbed, thereby improving the noise reduction effect of the noise reduction device.

Referring to FIG. 2 , the material used for the first sound-absorbing board 4 and the second sound-absorbing board 7 is melamine foam.

Adopt the above-mentioned scheme: by arranging the material that the first sound-absorbing plate 4 and the second sound-absorbing plate 7 adopt to be melamine foam, can make the first sound-absorbing plate 4 and the second sound-absorbing plate 7 carry out noise reduction better, have improved the sound-absorbing device Noise reduction efficiency.

Working principle of the utility model:

When in use, the user installs and fixes the noise reduction device to the fan through the mounting plate 2. The noise generated by the fan operation is initially silenced through the noise reduction filter 3, and then the noise is silenced through the first noise reduction plate 4. The first noise reduction plate 4 The first noise reduction groove 5 on the top absorbs and silences the noise, and then the noise is blocked and silenced by the noise reduction baffle 6, while the second noise reduction groove 14 on the noise reduction baffle 6 further silences the noise, and then the noise passes through the second noise reduction plate 7 When the noise passes through the sound-absorbing pipe 8, the sound-absorbing cotton 9 in the sound-absorbing pipe 8 absorbs the noise, and finally the noise is silenced by the sound-absorbing screen 10, so that the noise generated by the fan is better silenced.

To sum up: the new fan noise reduction device, by setting the shell 1, the installation plate 2, the noise reduction filter 3, the first noise reduction board 4, the first noise reduction tank 5, the noise reduction baffle 6, the second noise reduction board 7, the noise reduction The joint use of pipe 8, sound-absorbing cotton 9, sound-absorbing net plate 10, dust-proof filter screen 11, retaining net 12, sound-absorbing hole 13 and second sound-absorbing groove 14 solves the problem that the sound-absorbing effect of the existing sound-absorbing device is reduced, thereby in the accompanying The noise brought by the fan with a large flow rate is relatively large, which cannot meet the environmental protection requirements, and at the same time will bring adverse effects on the surrounding environment and people.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. A novel fan noise reduction device, comprising a housing (1), is characterized in that: the left side of the housing (1) is fixedly connected with a mounting plate (2), and the inside of the left side of the housing (1) A sound-absorbing filter screen (3) is fixedly connected, and the right side of the sound-absorbing filter screen (3) is fixedly connected with a first sound-absorbing plate (4), and the inner surface of the first sound-absorbing plate (4) is provided with a first sound-absorbing groove (5), the inner surface of the first sound-absorbing plate (4) is fixedly connected with several sound-absorbing baffles (6), and the described sound-absorbing baffles (6) are alternately arranged up and down inside the first sound-absorbing plate (4) , the inner surface of the housing (1) is fixedly connected to the second sound-absorbing plate (7), the top of the housing (1) is fixedly communicated with a sound-absorbing pipe (8), and the inner wall of the sound-absorbing pipe (8) is fixedly connected to There is sound-absorbing cotton (9), and a sound-absorbing screen (10) is fixedly connected to the right side of the first sound-absorbing board (4). 2. A novel fan noise reduction device as claimed in claim 1, characterized in that: the right side of the housing (1) is fixedly connected with a dust-proof filter (11), and the dust-proof filter (11) The left side is in contact with the sound-absorbing net plate (10). 3. A new fan noise reduction device according to claim 1, characterized in that: the inside of the noise reduction pipe (8) is fixedly connected with a retaining net (12), and the material of the retaining net (12) has a sound-absorbing function . 4. A new noise reduction device for fans according to claim 1, characterized in that: the inner wall of the casing (1) is provided with several sound-absorbing holes (13), and the sound-absorbing holes (13) are evenly distributed in the casing The inner wall of the body (1). 5. A novel fan noise reduction device as claimed in claim 1, characterized in that: the left side of the noise reduction baffle (6) is provided with several second noise reduction grooves (14), and the second noise reduction grooves ( 14) Evenly distribute on the left side surface of the sound-absorbing baffle (6). 6. A novel fan noise reduction device according to claim 1, characterized in that: the material used for the first noise reduction board (4) and the second noise reduction board (7) is melamine foam.

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