Industrial fan shell with noise reduction function

Abstract

The utility model provides an industrial fan shell with a noise reduction function. The industrial fan shell comprises an outer shell, a filter shell and an air outlet pipe are arranged on the two sides of the shell correspondingly, a fan body is arranged in the shell, an air inlet pipe is arranged on one side of the filter shell, sound insulation cotton is arranged on the inner wall of the air inlet pipe and the inner wall of the air outlet pipe, a plurality of first circular rings are arranged in the air inlet pipe, and a plurality of first grooves are evenly formed in the surfaces of the first circular rings. A plurality of second circular rings are arranged in the air outlet pipe, a plurality of second grooves are evenly formed in the surfaces of the second circular rings, and a support is arranged at the bottom of the shell. The interior of the air inlet pipe and the interior of the air outlet pipe are divided into a plurality of cavities, when air passes through the cavities, the air is blocked layer by layer and is continuously reflected in the cavities, and therefore the air expansion speed can be weakened step by step, the noise reduction effect is achieved, large noise is prevented from being generated at an inlet and an outlet of the draught fan body, and the service life of the draught fan is prolonged. Normal use of the fan body is guaranteed, and certain noise pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial fans, and in particular to an industrial fan housing with a noise reduction function. Background Art

[0002] Industrial fans are fans specially used for ventilation and high-temperature smoke exhaust in tunnels, underground garages, high-end civil buildings, metallurgy, factories and mines, etc. They are mainly composed of impellers, casings, inlet collectors, guide vanes, motors and other components. Industrial fans are used to extract waste gas from factories.

[0003] Among them, the "fan with dust and noise reduction function" disclosed in the application number "CN202122109046.5" "comprises a base and a fan body, a fixed frame II is provided at the outer edge of the air inlet on the front side of the fan body, and a fixed frame I is provided at the outer edge of the air inlet on the rear side of the fan body. A shock absorbing plate is provided at the bottom of the fixed frame II and the fixed frame I, and the base is located directly below the shock absorbing plate. Shock absorbing units are arranged in an array between the base and the shock absorbing plate. A noise reduction cover is correspondingly provided on the outer side of the fixed frame I, and a noise reduction shell located on the outer side of the fan body is provided between the fixed frame II and the fixed frame I". In the utility model, the shock absorbing and noise reduction effect can be activated by telescopic movement of the spring and the telescopic rod between the base and the shock absorbing plate, and the sound insulation and noise reduction layer on the inner wall thereof can soundproof and reduce the air outlet, air inlet and outer side of the fan body.

[0004] However, the above method still has the following defects: the noise reduction effect is achieved on the noise reduction shell by setting the noise reduction cover and the spring, but in the process of air entering the noise reduction cover, the interior of the noise reduction cover is set as a straight cylinder structure, which leads to a large change in the air flow velocity gradient, and easily generates a large noise at the inlet and outlet, affecting the normal use of the fan and causing certain noise pollution. Utility Model Content

[0005] The technical problem to be solved by the utility model is that in the process of air entering the noise reduction hood, the interior of the noise reduction hood is arranged in a straight cylinder structure, which leads to a large change in the air flow velocity gradient, easily generating a large noise at the inlet and outlet, affecting the normal use of the fan and causing certain noise pollution.

[0006] The utility model provides an industrial fan housing with a noise reduction function, comprising an outer shell, a filter shell and an air outlet pipe are respectively provided on two sides of the outer shell, a fan body is provided inside the outer shell, an air inlet pipe is provided on one side of the filter shell, the inner wall of the air inlet pipe and the inner wall of the air outlet pipe are both provided with sound insulation cotton, a plurality of circular rings 1 are provided inside the air inlet pipe, a plurality of grooves 1 are evenly provided on the surface of the circular ring 1, a plurality of circular rings 2 are provided inside the air outlet pipe, a plurality of grooves 2 are evenly provided on the surface of the circular ring 2, a support is provided at the bottom of the outer shell, a buffer component for buffering the outer shell is provided on the top of the support, and a filter component is provided inside the filter shell to filter the air.

[0007] The utility model can avoid generating large noise at the inlet and outlet of the fan body, ensure the normal use of the fan body, and reduce certain noise pollution.

[0008] In a possible embodiment, the surface of the filter shell and the surface of the outer shell are respectively provided with a circular mounting plate 1 and a circular mounting plate 2, the four corners of the surface of the circular mounting plate 1 are threadedly connected to the surface of the circular mounting plate 2 by bolt 1, and the end of the bolt 1 is threadedly provided with a nut.

[0009] In a possible implementation, the buffer assembly includes four spring telescopic rods, which are fixedly mounted on four corners of the top of the support, and the tops of the spring telescopic rods are fixedly connected to the bottom of the housing.

[0010] In a possible implementation manner, shock absorbers are provided at four corners of the top end of the support, the top end of the shock absorber is fixedly connected to the bottom of the shell, and a mounting hole is provided on the surface of the support.

[0011] In a possible embodiment, the filter assembly includes a filter plate, which is slidably connected to the inside of the filter shell, a sealing gasket is provided at the connection between the filter plate and the filter shell, a pull plate is provided on one side of the filter plate, and a handle is provided on the side of the pull plate facing away from the filter plate.

[0012] In a possible implementation manner, a fixing block is provided on the surface of the filter housing, a second bolt is provided on the internal thread of the fixing block, and a bolt hole corresponding to the second bolt is opened on the top of the pull plate.

[0013] In a possible implementation, a slide plate is provided at the bottom of the filter plate, a slide groove matching the slide plate is provided at the bottom end of the inner wall of the filter shell, and the slide plate is slidably connected to the slide groove.

[0014] In a possible implementation, a mounting ring is provided at one end of the air outlet pipe facing the housing, and a surface of the mounting ring is threadedly connected to a surface of the housing via a plurality of bolts.

[0015] Compared with the related art, the industrial fan housing with noise reduction function provided by the utility model has the following beneficial effects:

[0016] 1. By respectively arranging a plurality of rings 1 and a plurality of rings 2 inside the air inlet pipe and the air outlet pipe, and respectively arranging grooves 1 and 2 inside the ring 1 and inside the ring 2, the inside of the air inlet pipe and the inside of the air outlet pipe are divided into a plurality of chambers. When the gas passes through the chamber, it is blocked layer by layer and continuously reflected inside the chamber. Therefore, the gas expansion speed will be gradually weakened, thereby achieving the effect of noise reduction, avoiding the generation of large noise at the inlet and outlet of the fan body, ensuring the normal use of the fan body, and reducing certain noise pollution.

[0017] 2. By setting a buffer component at the bottom of the shell, in conjunction with the spring telescopic rod and the shock absorber, the noise generated by the shell can be buffered and reduced, thereby reducing certain noise pollution.

[0018] 3. By setting the filter assembly inside the filter shell, it is convenient to cooperate with bolt 2, and use the handle to disassemble, clean or replace the pull plate and the filter plate, so as to facilitate the later processing of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the explosion structure of the shell of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the air inlet pipe of the utility model;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the air outlet pipe of the utility model;

[0023] Figure 5 This is a schematic diagram of the explosion structure of the filter housing of the utility model;

[0024] Figure 6 For this utility model Figure 5 A is an enlarged structural diagram of FIG.

[0025] In the figure: 1. outer shell; 2. filter shell; 3. air inlet pipe; 4. air outlet pipe; 5. fan body; 6. circular ring 1; 7. groove 1; 8. circular ring 2; 9. filter assembly; 901. filter plate; 902. pull plate; 903. handle; 904. fixing block; 905. bolt 2; 906. slide plate; 907. slide groove; 10. support; 11. buffer assembly; 1101. spring telescopic rod; 1102. shock absorber; 1103. mounting hole; 12. groove 2; 13. circular mounting plate 1; 14. circular mounting plate 2; 15. bolt 1; 16. mounting ring. DETAILED DESCRIPTION

[0026] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0027] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0028] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] See also Figure 1-6As shown, the embodiment of the present application discloses an industrial fan housing with a noise reduction function, including a shell 1, a filter shell 2 and an air outlet pipe 4 are respectively provided on both sides of the shell 1, a fan body 5 is provided inside the shell 1, an air inlet pipe 3 is provided on one side of the filter shell 2, and the inner walls of the air inlet pipe 3 and the inner walls of the air outlet pipe 4 are both provided with sound insulation cotton. The sound insulation cotton provided on the inner walls of the air inlet pipe 3 and the inner walls of the air outlet pipe 4 facilitates the noise reduction and sound absorption during the passage of air, a plurality of circular rings 6 are provided inside the air inlet pipe 3, and a plurality of grooves 7 are uniformly provided on the surface of the circular ring 6, a plurality of circular rings 8 are provided inside the air outlet pipe 4, and a plurality of grooves 12 are uniformly provided on the surface of the circular ring 8, and a plurality of circular rings 6 are provided inside the air inlet pipe 3, and a plurality of grooves 13 are uniformly provided on the surface of the circular ring 6. Groove 1 7, by arranging a plurality of circular rings 2 8 inside the air outlet pipe 4, and a groove 2 12 arranged inside the circular ring 2 8, the interior of the air inlet pipe 3 and the interior of the air outlet pipe 4 are divided into a plurality of chambers. When the gas passes through the chamber, it is blocked layer by layer and continuously reflected inside the chamber. Therefore, the gas expansion speed will be gradually weakened, thereby achieving the effect of noise reduction and ensuring the normal use of the fan body 5. A support 10 is provided at the bottom of the outer shell 1, and a buffer component 11 for buffering the outer shell 1 is provided on the top of the support 10, so as to buffer and reduce noise for the outer shell 1 at the top and reduce certain noise pollution. A filter component 9 is provided inside the filter shell 2. By providing the filter component 9 inside the filter shell 2, air is filtered, which is convenient for filtering the air.

[0031] A circular mounting plate 13 and a circular mounting plate 2 14 are respectively provided on the surface of the filter shell 2 and the surface of the outer shell 1. The four corners of the surface of the circular mounting plate 13 are threadedly connected with the surface of the circular mounting plate 2 14 through bolts 15. The end thread of the bolt 15 is provided with a nut. By providing a circular mounting plate 13 and a circular mounting plate 2 14 on the surface of the filter shell 2 and the surface of the outer shell 1 respectively, and cooperating with the bolts 15, it is convenient to install the filter shell 2 to the surface of the outer shell 1, to facilitate the disassembly of the filter shell 2, and to facilitate the disassembly and maintenance of the fan body 5 inside the outer shell 1.

[0032] The buffer assembly 11 includes four spring telescopic rods 1101, which are fixedly mounted on the four corners of the top of the support 10. The top of the spring telescopic rod 1101 is fixedly connected to the bottom of the outer shell 1. Through the extension and retraction of the spring telescopic rod 1101 and the support 10, the vibration at the outer shell 1 can be buffered and noise reduced.

[0033] Shock absorbers 1102 are provided at the four corners of the top of the support 10. The top of the shock absorber 1102 is fixedly connected to the bottom of the shell 1. A mounting hole 1103 is opened on the surface of the support 10 to facilitate the shock absorber 1102 to cushion the vibration generated by the spring telescopic rod 1101.

[0034] The filter assembly 9 includes a filter plate 901, which is slidably connected to the inside of the filter shell 2. A sealing gasket is provided at the connection between the filter plate 901 and the filter shell 2. A pull plate 902 is provided on one side of the filter plate 901. A handle 903 is provided on the side of the pull plate 902 facing away from the filter plate 901. The filter plate 901 is provided inside the filter shell 2 to facilitate filtering. The filter plate 901 can be pulled out, disassembled, cleaned or replaced by using the pull plate 902 and the handle 903.

[0035] A fixing block 904 is provided on the surface of the filter shell 2, and a bolt 905 is provided on the internal thread of the fixing block 904. A bolt hole corresponding to the bolt 905 is opened on the top of the pull plate 902, so that the pull plate 902 can be limited and fixed by the bolt 905 and the bolt hole, thereby facilitating the installation and positioning of the filter plate 901.

[0036] A slide plate 906 is provided at the bottom of the filter plate 901, and a slide groove 907 matching the slide plate 906 is provided at the bottom end of the inner wall of the filter shell 2, and the slide plate 906 is slidably connected to the slide groove 907, so as to facilitate sliding and limiting the filter plate 901 at the filter shell 2 and facilitate subsequent installation.

[0037] An installation ring 16 is provided at one end of the air outlet pipe 4 facing the outer shell 1 , and the surface of the installation ring 16 is threadedly connected to the surface of the outer shell 1 through a plurality of bolts three, so that the installation ring 16 and the bolts three can be installed and fixed to the outer shell 1 .

[0038] When using the utility model, first place the industrial fan housing at a suitable position, and install the industrial fan housing to a suitable position through the mounting hole 1103 at the support 10. When the industrial fan is used, air enters through the air inlet pipe 3 and flows out from the air outlet pipe 4. When the gas passes through the chambers of the air inlet pipe 3 and the air outlet pipe 4, a plurality of circular rings 16 are arranged inside the air inlet pipe 3, and a groove 17 is arranged inside the circular ring 16, and a plurality of circular rings 28 are arranged inside the air outlet pipe 4, and a groove 212 is arranged inside the circular ring 28. During the process of air passing through the chamber, it is blocked layer by layer and continuously reflected inside the chamber. Therefore, the gas expansion speed will be gradually weakened, thereby achieving the effect of noise reduction and ensuring the normal use of the fan body 5. In combination with the partitions arranged on the inner walls of the air inlet pipe 3 and the air outlet pipe 4, The sound cotton can absorb the generated noise and achieve the effect of noise reduction. The buffer component 11 arranged at the bottom of the shell 1 and the telescopic movement of the spring telescopic rod 1101 cooperate with the four shock absorbers 1102, so that the vibration of the shell 1 can be cushioned and noise reduced, thereby reducing certain noise pollution. The filter plate 901 arranged inside the filter shell 2 can filter the air. At the same time, by removing the bolt 2 905, it is convenient to move and slide the slidingly connected filter plate 901 out, so that the filter plate 901 can be disassembled, which is convenient for cleaning or replacing its surface later, and the use is convenient. In addition, by the arrangement of the circular mounting plate 13, the circular mounting plate 2 14 and the bolt 15, it is convenient to disassemble the filter shell 2, which is convenient for the subsequent maintenance of the fan body 5.

[0039] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0040] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. Industrial fan housing with noise reduction function, characterized by: The invention comprises a shell (1), wherein a filter shell (2) and an air outlet pipe (4) are respectively arranged on both sides of the shell (1), a fan body (5) is arranged inside the shell (1), an air inlet pipe (3) is arranged on one side of the filter shell (2), the inner wall of the air inlet pipe (3) and the inner wall of the air outlet pipe (4) are both provided with sound insulation cotton, a plurality of circular rings (6) are arranged inside the air inlet pipe (3), a plurality of grooves (7) are evenly arranged on the surface of the circular rings (6), a plurality of circular rings (8) are arranged inside the air outlet pipe (4), a plurality of grooves (12) are evenly arranged on the surface of the circular rings (8), a support (10) is arranged at the bottom of the shell (1), a buffer component (11) for buffering the shell (1) is arranged on the top of the support (10), and a filter component (9) is arranged inside the filter shell (2) to filter the air.

2. The industrial fan housing with noise reduction function according to claim 1, characterized in that: The surface of the filter housing (2) and the surface of the outer housing (1) are respectively provided with a first circular mounting plate (13) and a second circular mounting plate (14); the four corners of the surface of the first circular mounting plate (13) are threadedly connected to the surface of the second circular mounting plate (14) via a first bolt (15); a nut is threadedly provided at the end of the first bolt (15).

3. The industrial fan housing with noise reduction function according to claim 1, characterized in that: The buffer assembly (11) comprises four spring telescopic rods (1101), wherein the four spring telescopic rods (1101) are fixedly mounted on four corners of the top of the support (10), and the tops of the spring telescopic rods (1101) are fixedly connected to the bottom of the housing (1).

4. The industrial fan housing with noise reduction function according to claim 3 is characterized in that: Shock absorbers (1102) are provided at the four corners of the top of the support (10), the top of the shock absorber (1102) is fixedly connected to the bottom of the housing (1), and a mounting hole (1103) is provided on the surface of the support (10).

5. The industrial fan housing with noise reduction function according to claim 1, characterized in that: The filter assembly (9) comprises a filter plate (901), the filter plate (901) being slidably connected to the interior of the filter housing (2), a sealing gasket being provided at the connection between the filter plate (901) and the filter housing (2), a pull plate (902) being provided on one side of the filter plate (901), and a handle (903) being provided on the side of the pull plate (902) facing away from the filter plate (901).

6. The industrial fan housing with noise reduction function according to claim 5, characterized in that: A fixing block (904) is provided on the surface of the filter housing (2), a second bolt (905) is provided on the internal thread of the fixing block (904), and a bolt hole corresponding to the second bolt (905) is provided on the top of the pull plate (902).

7. The industrial fan housing with noise reduction function according to claim 6, characterized in that: A slide plate (906) is provided at the bottom of the filter plate (901), a slide groove (907) matching the slide plate (906) is provided at the bottom end of the inner wall of the filter shell (2), and the slide plate (906) is slidably connected to the slide groove (907).

8. The industrial fan housing with noise reduction function according to claim 1, characterized in that: A mounting ring (16) is provided at one end of the air outlet pipe (4) facing the outer shell (1), and the surface of the mounting ring (16) is threadedly connected to the surface of the outer shell (1) via a plurality of bolts.

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