CN211174809U

CN211174809U - Smoke exhaust fan with noise reduction function

Info

Publication number: CN211174809U
Application number: CN201922176079.4U
Authority: CN
Inventors: 赵维虎; 刘子辉; 丁贤鹏; 康玉梅
Original assignee: Hebei Air Conditioner Engineering Installation Co ltd
Current assignee: Hebei Air Conditioner Engineering Installation Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-08-04
Anticipated expiration: 2029-12-06

Abstract

The utility model relates to a smoke exhaust fan with function of making an uproar is fallen, including the tubulose shell, set up the impeller in the shell and with the motor of impeller connection, the motor is through a plurality of fixed plates and the interior wall connection of shell, and shell outside cover is equipped with the sleeve pipe, leaves the space between sleeve pipe and the shell, sets up ceramic filler in the space, evenly sets up a plurality of hemispherical recesses on the shell, and the hemispherical recess is sunken to the space, sets up the through-hole on the recess, and space and shell are inside to pass through the through-hole intercommunication. The utility model provides a pair of smoke exhaust fan with function of making an uproar falls, through the folded plate that is used for supporting the motor that sets up on the air current direction, dispersedly and slow down the air current, reduce the radiography, simultaneously through the half spherical recess that sets up on the shells inner wall, collect the inside noise of casing and send the arc ceramic plate that the casing outside set up to, further absorb the noise, arc ceramic plate itself also has shock attenuation sound insulation effect in addition.

Description

Smoke exhaust fan with noise reduction function

Technical Field

The utility model relates to a fan manufacturing technology field, concretely relates to smoke exhaust fan with function of making an uproar is fallen.

Background

The smoke and dust in the factory building can produce hidden danger to the staff and need in time get rid of to guarantee the clean degree of operational environment, the smoke and dust that produces in the factory building at present is directly discharged to outdoor or is discharged into air purification device through smoke exhaust fan, and for example the air is strained a section of thick bamboo, discharges to outdoor again.

In general, a smoke exhaust fan in the prior art uses another cylindrical shell as a housing, a driving motor and a fan connected with the motor are arranged in the smoke exhaust fan, and air in a plant is exhausted by the fan, so that the purpose of reducing the smoke content in the plant is achieved.

However, in the conventional smoke exhaust fan used in the prior art, during the smoke exhaust process, the fan and the motor operate to generate loud noise, and the interaction between the impeller and the air flowing through the fan also generates loud noise, the noise is diffused outwards by taking the fan and the motor as the center, most of sound waves are transmitted to the cylindrical shell, and the cylindrical shell is a simple metal shell and cannot reduce the noise, and meanwhile, the noise is reverberated in the shell.

SUMMERY OF THE UTILITY MODEL

For solving the problem that exists among the above-mentioned technique, the utility model provides a smoke exhaust fan with function of making an uproar falls, including the tubulose shell, set up in impeller in the shell and with the motor that the impeller is connected, the motor through a plurality of fixed plates with wall connection in the shell, shell outside cover is equipped with the sleeve pipe, the sleeve pipe with leave the space between the shell, set up ceramic packing in the space, evenly set up a plurality of hemispherical recesses on the shell, hemispherical recess to the space is sunken, set up the through-hole on the recess, the space with the shell is inside to be passed through the through-hole intercommunication.

Preferably, the fixing plates are folded plates, the number of the fixing plates is 3 to 6, and the fixing plates are uniformly arranged along the radial direction of the shell.

The ceramic filler is an arc-shaped ceramic plate, and the inner side of the arc-shaped ceramic plate faces the groove.

The arc-shaped ceramic plate is long and is arranged along the axial direction of the shell.

The outer side of the sleeve is provided with an outer side support for fixing, and the bottom of the outer side support is provided with a damping rubber pad.

And one end of the shell, which is far away from the impeller, is provided with a diffusion cylinder, and the diffusion cylinder is in a conical shape with openings at two ends.

Wherein, the inner wall of the diffusion cylinder is wave-shaped.

Wherein, the through-hole is a plurality of, even set up in on the recess.

The utility model has the advantages that: the utility model provides a pair of smoke exhaust fan with function of making an uproar falls, through the folded plate that is used for supporting the motor that sets up on the air current direction, dispersedly and slow down the air current, reduce the radiography, simultaneously through the half spherical recess that sets up on the shells inner wall, collect the inside noise of casing and send the arc ceramic plate that the casing outside set up to, further absorb the noise, arc ceramic plate itself also has shock attenuation sound insulation effect in addition.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a front view of the present invention;

fig. 2 is a side sectional view of the present invention;

fig. 3 is a detail view of the side wall of the present invention;

fig. 4 is a cross-sectional view of the fixing plate of the present invention;

fig. 5 is a schematic diagram of another embodiment of the present invention.

Description of the reference numerals

1. The device comprises a shell, 11, grooves, 111, through holes, 12, an arc-shaped ceramic plate, 2, a sleeve, 3, a fixing plate, 4, an impeller, 5, an outer side support, 51, a damping rubber pad, 6, a motor, 7 and a diffusion cylinder.

Detailed Description

The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the drawings in the embodiment of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

As shown in fig. 1 to 4, for the utility model provides a pair of smoke exhaust fan with function of making an uproar falls, including tubulose shell 1, set up impeller 4 in shell 1 and the motor 6 of being connected with impeller 4, motor 6 drive impeller 4 rotates, with the flue gas exhaust, this is current conventional art, no longer gives unnecessary details.

The utility model discloses an invention point lies in, as shown in fig. 2 and fig. 4, motor 6 is through a plurality of fixed plates 3 and shell 1 inner wall welding or through the spiral shell, for fixed motor 6, fixed plate 3 is V style of calligraphy folded plate, fixed plate 3 is along the radial even setting of shell 1, the crease on fixed plate 3 is perpendicular with the air flow direction, be used for dispersing and slowing down the air current near fixed plate 3, make the air current of outflow softer, reach the purpose of noise reduction, the quantity of fixed plate 3 is between 3 to 6 simultaneously, in order to avoid producing obvious influence to air current;

as shown in fig. 1 and 3, a sleeve 2 is sleeved outside a shell 1, a gap is left between the sleeve 2 and the shell 1, the gap is 5-6cm, ceramic filler is arranged in the gap, the ceramic filler is an arc ceramic plate 12, the inner side of the arc ceramic plate 12 is arranged towards a groove 11, the arc ceramic plate 12 is in a long strip shape, the ceramic fixing plates 12 are arranged along the axial direction of the shell 1 and are arranged along the outer side of the shell 1, the arc ceramic plates 12 can be bonded on the outer wall of the shell 1 or fixed in other manners, the height of the ceramic arc plate 12 is consistent with the space interval, a plurality of hemispherical grooves 11 are uniformly arranged on the shell 1, the hemispherical grooves 11 are sunken towards the gap, a plurality of through holes 111 are uniformly arranged on the grooves 11, the diameter of the hemispherical grooves 11 is 3cm, the gap is communicated with the inner part of the shell 1 through the through holes 111, evenly distributed on hemisphere recess 11, thus, the inside noise that produces of shell 1, for example the noise that impeller 4 and circulating air interact produced or the noise that motor 6 operation produced etc., can spread to shell 1's inner wall, and collect by hemisphere recess 11, the noise passes through the internal reflection and spreads into in the space between shell 1 and the sleeve pipe 2 through-hole 111 at hemisphere recess 11, the noise that spreads into is further reflected and is absorbed by arc ceramic plate 12, the intussuseption arc ceramic plate 12 also can play shock attenuation and syllable-dividing effect in the space simultaneously, this arc ceramic plate 12 is made by ceramic sound absorbing material, this kind of material is common material among the prior art.

Wherein, the outside of sleeve pipe 2 sets up and is used for fixed outside support 5, and outside support 5 bottom sets up shock attenuation cushion 51, and the vibrations that this device operation in-process produced then can carry out twice absorption through arc ceramic plate 12 and shock attenuation cushion 51, but the reduction vibration noise of big degree.

Another embodiment

As shown in fig. 5, for the schematic view of another embodiment of the present invention, the difference between this embodiment and the above embodiments is that one end of the casing 1 far away from the impeller 4 is provided with a diffuser 7, the diffuser 7 is a tapered cylinder with two open ends, one end with a large radius is far away from the casing 1, and the inner wall of the diffuser 7 is wavy.

The wavy inner wall of the diffusion cylinder 7 can further slow down the speed of air flow, and meanwhile, the diffusion cylinder 7 can gather exhausted smoke to prevent smoke backflow to a certain extent.

It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Claims

1. The utility model provides a smoke exhaust fan with function of making an uproar falls, include the tubulose shell, set up in impeller in the shell and with the motor that the impeller is connected, its characterized in that, the motor through a plurality of fixed plates with shell inner wall connects, shell outside cover is equipped with the sleeve pipe, the sleeve pipe with leave the space between the shell, set up ceramic packing in the space, evenly set up a plurality of hemispherical recesses on the shell, hemispherical recess to the space is sunken, set up the through-hole on the recess, the space with the shell is inside to be passed through the through-hole intercommunication.

2. The smoke exhaust fan with the noise reduction function according to claim 1, wherein the fixing plates are folded plates, the number of the fixing plates is 3 to 6, and the fixing plates are uniformly arranged along the radial direction of the housing.

3. The exhaust fan with the noise reduction function according to claim 1, wherein the ceramic filler is an arc-shaped ceramic plate, and an inner side of the arc-shaped ceramic plate is arranged toward the groove.

4. The smoke exhaust fan with the noise reduction function according to claim 3, wherein the arc-shaped ceramic plate is long and is arranged along the axial direction of the housing.

5. The smoke exhaust fan with the noise reduction function according to claim 1, wherein an outer bracket for fixing is arranged outside the sleeve, and a shock absorption rubber pad is arranged at the bottom of the outer bracket.

6. The smoke exhaust fan with the noise reduction function according to claim 1, wherein a diffuser is arranged at one end of the casing far away from the impeller, and the diffuser is in a conical shape with openings at two ends.

7. The exhaust fan with the noise reduction function according to claim 6, wherein the inner wall of the diffuser is wavy.

8. The smoke exhaust fan with the noise reduction function according to claim 1, wherein the through holes are uniformly formed in the groove.