CN220037083U

CN220037083U - Fan with muffler

Info

Publication number: CN220037083U
Application number: CN202321506769.1U
Authority: CN
Inventors: 傅亚佳
Original assignee: Shaoxing Shangyu Jiake Electromechanical Equipment Co ltd
Current assignee: Shaoxing Shangyu Jiake Electromechanical Equipment Co ltd
Priority date: 2023-06-13
Filing date: 2023-06-13
Publication date: 2023-11-17
Anticipated expiration: 2033-06-13

Abstract

The utility model discloses a fan with a muffler, which relates to the field of fans, and the technical scheme is as follows: including the body, the air inlet end fixedly connected with silencer of body, the silencer includes the amortization section of thick bamboo, the one end of amortization section of thick bamboo is provided with the air intake, the other end is provided with the air outlet, the one end that is close to the air outlet inside the amortization section of thick bamboo is provided with the portion of inhaling sound, the portion of inhaling sound includes a plurality of horizontal sound absorbing boxes, the both ends of inhaling the sound box are connected on the amortization section of thick bamboo inner wall, the portion of giving sound insulation includes a plurality of baffle that give sound insulation, the baffle that gives sound insulation is on a parallel with ground, be formed with the water conservancy diversion passageway between the adjacent baffle that gives sound insulation, the one end that the amortization section of thick bamboo is close to the air outlet is provided with spherical fan housing, a plurality of wind inlets have been seted up on the spherical fan housing. According to the utility model, by arranging the muffler, turbulence generated by air flow is reduced, and noise generated by the turbulence is further reduced, so that the noise of the fan is smaller, and the sound absorption effect is better.

Description

Fan with muffler

Technical Field

The utility model relates to the field of fans, in particular to a fan with a muffler.

Background

Fans include axial flow fans, commonly used in ventilation facilities in plants, offices, buildings, and the like, for exhausting indoor dirty air outdoors.

In the prior art, the noise generated by the axial flow fan is usually reduced by using the muffler, and the sound absorbing plate is arranged in the air flow channel of the muffler to reduce the noise, but when the air flow hits the sound absorbing plate, the direction of the air flow is changed, and when the air flow hits different sound absorbing plates, a plurality of small air flows with different directions are generated, namely turbulence, and the turbulence generates high-frequency noise, so that the sound absorbing effect is reduced.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a fan with a muffler, which has better sound absorption effect.

The technical aim of the utility model is realized by the following technical scheme: the fan with the silencer comprises a body, an air inlet end of the body is fixedly connected with the silencer, the silencer comprises a silencing barrel, an air inlet is formed in one end of the silencing barrel, an air outlet is formed in the other end of the silencing barrel, a sound insulation part is arranged at one end, close to the air outlet, of the silencing barrel, a sound absorption part is arranged at one end, close to the air inlet, of the silencing barrel, the sound absorption part comprises a plurality of transverse sound absorption boxes, two ends of the sound absorption boxes are connected to the inner wall of the silencing barrel, the sound insulation part comprises a plurality of sound insulation guide plates, the sound insulation guide plates are parallel to the ground, a guide channel is formed between the adjacent sound insulation guide plates, a spherical fan cover is arranged at one end, close to the air outlet, of the silencing barrel, and a plurality of air inlet channels are formed in the spherical fan cover.

The utility model is further provided with: the sound absorbing box is provided with a plurality of holes.

The utility model is further provided with: the sound absorbing box comprises a first porous box and a second porous box, wherein a plurality of ceramic fiber felts are filled in the first porous box, and polyurethane foam is filled in the second porous box.

The utility model is further provided with: the sound insulation guide plate comprises a plurality of sound absorption fins, and the sound absorption fins are arranged along the width direction of the sound insulation guide plate.

The utility model is further provided with: the body comprises an air duct, a motor with an impeller is arranged in the air duct, and a plurality of supporting frames are annularly arranged between the outer wall of the motor and the inner wall of the air duct.

The utility model is further provided with: and a vibration reduction plate is arranged between the support frame and the inner wall of the wind cylinder.

The utility model is further provided with: the air inlet end of the body is connected with the air outlet of the muffler through a flange, and a sealing vibration damping ring is arranged between the air inlet end of the body and the air outlet of the muffler.

In summary, the utility model has the following beneficial effects:

according to the utility model, the silencer comprises the silencing barrel, one end, close to the air outlet, of the silencing barrel is provided with the sound-absorbing part, one end, close to the air inlet, of the silencing barrel is provided with the sound-absorbing part, the sound-absorbing part comprises a plurality of transverse sound-absorbing boxes, the sound-absorbing part comprises a plurality of sound-insulating guide plates, guide channels are formed between the adjacent sound-insulating guide plates, when air flows through the silencing barrel, the sound-insulating guide plates can change the propagation paths and directions of the air flows, so that the air flows are more stable, turbulent noise is reduced, sound waves can also be guided to be reflected and scattered for multiple times along the guide channels, the energy of the sound waves can be dissipated in the guide channels, so that the propagation distance and intensity of the sound waves are reduced, the spherical wind cover is arranged at one end, close to the air outlet, a plurality of air inlet channels are formed in the spherical wind cover, the air inlet can uniformly enter the wind turbine from different directions through the omnibearing geometric shape of the spherical wind cover, the arrangement of the air inlet holes can further refine the entering positions of the air flows, the air inlet distribution is more uniform, turbulent flow generated around the air inlet is reduced, noise generated by turbulent flow is reduced, the noise generated by the wind is reduced, the wind is better in sound absorption effect.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a partial cross-sectional view of the present utility model.

In the figure: 1. a muffler; 2. a sound suction box; 3. a sound insulation deflector; 4. a diversion channel; 5. a spherical fan housing; 6. wind inlet tunnel; 7. sound-absorbing fins; 8. a support frame; 9. a vibration damping plate; 10. a sound deadening cylinder; 11. an air duct; 12. and a motor.

Detailed Description

The present utility model will be described in detail below with reference to the accompanying drawings and examples.

Examples: the utility model provides a take fan of silencer, as shown in fig. 1, fig. 2, which comprises a body, the air inlet end fixedly connected with silencer 1 of body, silencer 1 includes the amortization section of thick bamboo 10, the one end of amortization section of thick bamboo 10 is provided with the air intake, the other end is provided with the air outlet, the inside one end that is close to the air outlet of amortization section of thick bamboo 10 is provided with the sound-absorbing portion, the sound-absorbing portion includes a plurality of horizontal sound-absorbing boxes 2, the both ends of sound-absorbing boxes 2 are connected on amortization section of thick bamboo 10 inner wall, the sound-absorbing portion includes a plurality of baffle 3 that give sound insulation, baffle 3 are on a parallel with ground, be formed with guide channel 4 between the adjacent baffle 3 that gives sound insulation, when the air current passes through amortization section of thick bamboo 10, baffle 3 can change the propagation path and the direction of air current, make the air current more steady, reduce turbulent noise, the sound wave also can guide sound wave carries out multiple reflection and scatter along guide channel 4, the energy of sound wave can be dissipated in guide channel 4, thereby reduce the propagation distance and intensity of sound wave, the one end that is close to the air outlet of amortization section of thick bamboo 10 is provided with spherical fan 5, set up a plurality of intake 6 on spherical fan 5, can make the air inlet 6 through the spherical fan, can be more evenly distributed in the air inlet hole, the more evenly, the air inlet can be further evenly distributed in the position can not be guaranteed, the air inlet wind inlet that can be more evenly, the air inlet can be guaranteed, the more evenly, the air inlet can be better, the air inlet can be reduced, the air can be better evenly and more evenly distributed, the air inlet can be better air inlet can be guaranteed, the air inlet can be better.

As shown in fig. 2, the sound absorbing box 2 is provided with a plurality of holes, the sound absorbing box 2 comprises a first porous box and a second porous box, the first porous box and the second porous box are arranged randomly, a plurality of ceramic fiber felts are filled in the first porous box, polyurethane foam is filled in the second porous box, the ceramic fiber felts are filled in the first porous box, the ceramic fiber felts have excellent sound absorbing performance, when sound waves enter the porous box, the ceramic fiber felts can absorb the energy of the sound waves through a multi-stage pore structure and convert the energy into tiny heat energy, so that the reflection and propagation of the sound waves can be effectively weakened, the noise level is reduced, the polyurethane foam filled in the second porous box has certain elasticity and rebound resilience, when the sound waves enter the second porous box, the polyurethane foam can reflect and scatter the sound waves through the elastic characteristics of the polyurethane foam and quickly rebound, thus the compensating effect can be generated on low-frequency noise, the sound absorbing, sound absorbing and scattering effects can be effectively realized on the sound waves of different frequency ranges, and the noise processing capacity of the muffler 1 is enhanced, and the sound absorbing box 2 can effectively absorb and scatter the sound waves, so that the noise level is reduced.

As shown in fig. 2, the sound insulation guide plate 3 includes a plurality of sound absorption fins 7, the sound absorption fins 7 are arranged along the width direction of the sound insulation guide plate 3, the sound absorption fins 7 are made of polyurethane foam, and can absorb the energy of sound waves, and the plurality of sound absorption fins 7 can increase the surface area of the sound insulation guide plate 3, increase the contact surface with sound waves, and improve the noise absorption effect.

As shown in fig. 2, the body includes dryer 11, be provided with the motor 12 that has the impeller in the dryer 11, be provided with a plurality of support frames 8 between motor 12 outer wall and the dryer 11 inner wall, be provided with damping plate 9 between support frame 8 and the dryer 11 inner wall, the support frame 8 of annular setting, can support motor 12 better, make motor 12 more stable for the position between the dryer 11, provide stable structural support, when motor 12 operates, can produce the vibration, damping plate 9 can absorb and reduce vibration transmission to dryer 11 through its soft characteristic and vibration absorbing capacity, thereby noise level and structural vibration are reduced.

The air inlet end of the body and the air outlet of the muffler 1 are connected through the flange, the sealing vibration damping ring is arranged between the air inlet end of the body and the air outlet of the muffler 1 and is positioned at the connecting interface between the pump body and the muffler 1 and used for filling gaps between the interfaces, preventing air flow leakage and noise leakage, ensuring that the connecting position between the body and the muffler 1 keeps good air tightness, and the sealing vibration damping ring has certain flexibility and elasticity, can play a vibration damping role between the body and the muffler 1 and reduce noise generated by vibration transmission.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. A fan with a muffler, characterized in that: including the body, the air inlet end fixedly connected with silencer (1) of body, silencer (1) is including amortization section of thick bamboo (10), the one end of amortization section of thick bamboo (10) is provided with the air intake, and the other end is provided with the air outlet, the inside one end that is close to the air outlet of amortization section of thick bamboo (10) is provided with the portion that gives sound, the one end that is close to the air intake inside amortization section of thick bamboo (10) is provided with the portion of inhaling sound, the portion of inhaling sound includes a plurality of horizontal sound absorbing box (2), the both ends of sound absorbing box (2) are connected on amortization section of thick bamboo (10) inner wall, the portion of giving sound includes a plurality of sound insulation guide plates (3), sound insulation guide plates (3) are on a parallel with ground, adjacent be formed with guide passage (4) between sound insulation guide plates (3), the one end that is close to the air outlet of amortization section of thick bamboo (10) is provided with spherical fan housing (5), a plurality of wind-in tunnel (6) have been seted up on spherical fan housing (5).

2. A fan with a muffler as defined in claim 1, wherein: the sound absorbing box (2) is provided with a plurality of holes.

3. A fan with a muffler as defined in claim 2, wherein: the sound absorbing box (2) comprises a first porous box and a second porous box, wherein a plurality of ceramic fiber felts are filled in the first porous box, and polyurethane foam is filled in the second porous box.

4. A fan with a muffler as defined in claim 1, wherein: the sound insulation guide plate (3) comprises a plurality of sound absorption fins (7), and the sound absorption fins (7) are arranged along the width direction of the sound insulation guide plate (3).

5. A fan with a muffler as defined in claim 1, wherein: the body comprises an air duct (11), a motor (12) with an impeller is arranged in the air duct (11), and a plurality of supporting frames (8) are annularly arranged between the outer wall of the motor (12) and the inner wall of the air duct (11).

6. The fan with a muffler as defined in claim 5, wherein: a vibration reduction plate (9) is arranged between the support frame (8) and the inner wall of the air duct (11).

7. The fan with a muffler as defined in claim 6, wherein: the air inlet end of the body is connected with the air outlet of the muffler (1) through a flange, and a sealing vibration damping ring is arranged between the air inlet end of the body and the air outlet of the muffler.