CN215979998U

CN215979998U - Dustproof centrifugal fan

Info

Publication number: CN215979998U
Application number: CN202122441404.2U
Authority: CN
Inventors: 王孟波; 靳楠
Original assignee: Tianjin Jinzhongji Hvac Services & Purifying Equipment Co ltd
Current assignee: Tianjin Jinzhongji Hvac Services & Purifying Equipment Co ltd
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-03-08
Anticipated expiration: 2031-10-11

Abstract

The utility model discloses a dustproof centrifugal fan which comprises a fan shell, wherein one end of the fan shell is provided with an air outlet, one side of the fan shell is provided with an air inlet, a noise-reduction air inlet mechanism is installed on the air inlet, a dustproof mechanism is arranged inside the noise-reduction air inlet mechanism, air guide mechanisms are arranged in the noise-reduction air inlet mechanisms on two opposite sides of the dustproof mechanism, a fan rotating shaft is rotatably arranged inside the fan shell, a plurality of fan impellers are arranged on the fan rotating shaft, one end of the fan rotating shaft penetrates through the fan shell and is fixedly installed with the output end of a servo motor through a coupler, the other end of the fan rotating shaft is connected with the dustproof mechanism, and the servo motor is fixedly installed with the fan shell through a support frame. The utility model has a series of structures, the noise-reducing air inlet mechanism filters and prevents dust for the air entering the centrifugal fan, the functionality of the centrifugal fan is increased, the filtering and dust-preventing are convenient to use, the service life of the centrifugal fan is prolonged, the air inlet noise-reducing device has good air inlet noise-reducing performance, and the noise pollution is small.

Description

Dustproof centrifugal fan

Technical Field

The utility model belongs to the technical field of centrifugal fans, and particularly relates to a dustproof centrifugal fan.

Background

The centrifugal fan is a common power transmission device, and the centrifugal fan is a driven fluid machine which increases gas pressure and discharges gas by means of input mechanical energy. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliance equipment, and the like.

At present centrifugal fan is at the in-process of using, contains dust etc. in the air that gets into centrifugal fan, and long-term long-pending stays the accumulation, influences centrifugal fan's function, causes fan equipment to damage, trouble even, leads to its life weak point to and the noise pollution that the fan operation produced is great, makes the fan can not use in the place that the low noise required, and application scope is little, and the practicality is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a dustproof centrifugal fan to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a dustproof centrifugal fan, includes the fan shell, the one end of fan shell is equipped with the air outlet, one side of fan shell is equipped with the air intake, install on the air intake and fall the air inlet mechanism of making an uproar, the inside of falling the air inlet mechanism of making an uproar is equipped with dustproof mechanism, all be equipped with air guide mechanism in the air inlet mechanism of making an uproar of falling the relative both sides of dustproof mechanism, the inside rotation of fan shell is equipped with the fan pivot, be equipped with a plurality of fan wheel in the fan pivot, the one end of fan pivot runs through the fan shell, through shaft coupling and servo motor's output fixed mounting, the other end and the dustproof mechanism of fan pivot are connected, servo motor passes through support frame and fan shell fixed mounting.

Preferably, the noise reduction air inlet mechanism comprises a noise reduction air inlet cylinder, a flange plate and an ash removal port, the two opposite ends of the noise reduction air inlet cylinder are integrally provided with the flange plate, one of the flange plates is fixedly installed on a fan shell at the air inlet, the ash removal port is formed in the bottom of the noise reduction air inlet cylinder, and a sealing cover is arranged on the ash removal port.

Preferably, the dustproof mechanism comprises a dustproof filter plate and a cleaning mechanism, the dustproof filter plate is fixedly mounted inside the noise reduction air inlet cylinder on one side, close to the air inlet, of the dust removing port, and the cleaning mechanism is arranged on the dustproof filter plate.

Preferably, the cleaning mechanism comprises a linkage shaft, a cleaning plate and a brush, one end of the fan rotating shaft penetrates through the air inlet and is fixedly installed with the linkage shaft through a coupler, one end of the linkage shaft penetrates through the dustproof filter plate and is fixedly installed with the cleaning plate, and the brush is arranged on one side of the cleaning plate.

Preferably, the air guide mechanism comprises two air guide cylinders, the cross sections of the two air guide cylinders are inclined in an arc shape, one air guide cylinder is arranged in the noise reduction air inlet cylinder far away from one side of the fan shell, and the other air guide cylinder is arranged in the noise reduction air inlet cylinder on one side of the dustproof filter plate.

Preferably, the inner surfaces of the air guide cylinders are provided with sound absorption layers.

Preferably, the noise reduction air inlet cylinder comprises an outer sound insulation cylinder and an inner sound insulation cylinder, the outer sound insulation cylinder is arranged between the two flange plates, and the inner sound insulation cylinder is arranged on the inner surface of the outer sound insulation cylinder.

Compared with the prior art, the utility model has the beneficial effects that:

1. this dustproof centrifugal fan, through setting up the air inlet mechanism of making an uproar that falls in fan shell air inlet department, the internally mounted who falls the air inlet section of thick bamboo of making an uproar has dustproof filter plate, can increase centrifugal fan's functional to the dustproof processing of filtration of getting into centrifugal fan, and filters dustproof convenient to use, prolongs centrifugal fan's life, and noise pollution is little, and the practicality is stronger.

2. This dustproof centrifugal fan, through setting up at the inside clearance mechanism of an air inlet section of thick bamboo that makes an uproar that falls, with dustproof filter plate, the cooperation of fan pivot, the rotation of fan pivot drives the universal driving shaft and rotates in step, utilizes the brush on the clearance board to clear up, prevent stifled the dustproof filter plate, guarantees the efficiency of the dustproof air inlet of centrifugal fan, and the clearance is convenient, the low energy consumption.

3. This dustproof centrifugal fan, through setting up the inside air guide mechanism at the air inlet section of thick bamboo of making an uproar that falls, dustproof filter plate both sides are equipped with the guide duct that the cross-section is the slope of arc and sets up, utilize the guide duct to fall the air current of making an uproar in the air inlet section of thick bamboo of making an uproar and lead for the air current is concentrated and is fallen the air inlet section of thick bamboo of making an uproar and get into the fan shell through making an uproar, reduces the production of air inlet noise.

4. This dustproof centrifugal fan through setting up the sound absorbing layer at the air duct internal surface to and fall the air inlet section of thick bamboo of making an uproar and adopt outer sound insulating cylinder and the setting of interior sound insulating cylinder bilayer structure, make the air duct, fall the air inlet section of thick bamboo of making an uproar have good sound insulation, inhale the sound performance, further reduce centrifugal fan's noise intensity, the operation feature of environmental protection is better.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;

FIG. 2 is a schematic structural view of a blower housing according to the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a schematic structural view of example 2 of the present invention;

fig. 5 is a schematic structural view of the air guiding mechanism of the present invention.

In the figure: 1. a fan housing; 2. an air outlet; 3. a noise reduction air inlet mechanism; 31. a noise reduction air inlet cylinder; 311. an outer sound-insulating tube; 312. an inner sound absorbing cylinder; 32. a flange plate; 33. cleaning the ash hole; 4. a dust-proof mechanism; 41. a linkage shaft; 42. a dustproof filter plate; 43. cleaning the plate; 44. a brush; 5. an air guide mechanism; 51. an air duct; 52. a sound absorbing layer; 6. a fan rotating shaft; 61. a fan impeller; 62. a servo motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1 to 3, the dustproof centrifugal fan of this embodiment includes a fan housing 1, an air outlet 2 is disposed at one end of the fan housing 1, an air inlet is disposed at one side of the fan housing 1, a noise reduction air inlet mechanism 3 is mounted on the air inlet, a dustproof mechanism 4 is disposed inside the noise reduction air inlet mechanism 3, air guide mechanisms 5 are disposed in the noise reduction air inlet mechanisms 3 at two opposite sides of the dustproof mechanism 4, a fan rotating shaft 6 is rotatably disposed inside the fan housing 1, a plurality of fan impellers 61 are disposed on the fan rotating shaft 6, one end of the fan rotating shaft 6 penetrates through the fan housing 1 and is fixedly mounted at an output end of a servo motor 62 through a coupler, the other end of the fan rotating shaft 6 is connected with the dustproof mechanism 4, the servo motor 62 is fixedly mounted with the fan housing 1 through a support frame, the noise reduction air inlet mechanism 3 disposed at the air inlet of the fan housing 1, the dustproof mechanism 4 is mounted inside the noise reduction air inlet barrel 3, can increase centrifugal fan's functional to the dustproof processing of filtration that gets into centrifugal fan, and filter dustproof convenient to use, prolong centrifugal fan's life, noise pollution is little, and the practicality is stronger.

Specifically, the noise reduction air inlet mechanism 3 comprises a noise reduction air inlet cylinder 31, flanges 32 and an ash removal port 33, the flanges 32 are integrally arranged at two opposite ends of the noise reduction air inlet cylinder 31, one of the flanges 32 is fixedly arranged with the fan shell 1 at the air inlet, the other flange 32 is connected with an air inlet pipeline, the ash removal port 33 is arranged at the bottom of the noise reduction air inlet cylinder 31, a sealing cover is arranged on the ash removal port 33, and the sealing cover and the ash removal port 33 are in threaded installation, so that the noise reduction air inlet mechanism 3 is convenient to install with the fan shell 1 and the air inlet pipeline.

Further, the dustproof mechanism 4 comprises a dustproof filter plate 42 and a cleaning mechanism, the dustproof filter plate 42 is fixedly mounted inside the noise reduction air inlet cylinder 31 on one side, close to the air inlet, of the dust removing port 33, and the cleaning mechanism is arranged on the dustproof filter plate 42 to guarantee the dustproof air inlet efficiency of the centrifugal fan.

Furthermore, the cleaning mechanism comprises a linkage shaft 41, a cleaning plate 43 and a brush 44, one end of the fan rotating shaft 6 penetrates through the air inlet and is fixedly installed with the linkage shaft 41 through a coupler, one end of the linkage shaft 41 penetrates through the dustproof filter plate 42 and is fixedly installed with the cleaning plate 43, the brush 44 is arranged on one side of the cleaning plate 43, the dustproof filter plate 42 is cleaned and prevented from being blocked by the brush 44 on the cleaning plate 43, and the cleaning mechanism is convenient to clean and low in energy consumption.

The using method of the embodiment comprises the following steps: the servo motor 62 drives the fan rotating shaft 6 to rotate, and drives the fan impeller 61 to rotate in the fan shell 1, so that external air enters from the noise reduction air inlet mechanism 3 and is discharged from the air outlet 2, because the dustproof filter plate 42 is installed in the noise reduction air inlet cylinder 31, the air is subjected to dustproof filtering treatment when passing through the dustproof filter plate 42 of the noise reduction air inlet cylinder 31, on one hand, the dust and the like are prevented from entering the centrifugal fan to cause loss and damage, on the other hand, the air inlet and supply quality of the centrifugal fan is improved, the functionality of the centrifugal fan is improved, in the rotating process of the fan rotating shaft 6, the linkage shaft 41 which is installed with the fan rotating shaft is driven to rotate, the cleaning plate 43 and the brush 44 on the linkage shaft 41 synchronously rotate, the brush 44 and the dustproof filter plate 42 are cleaned by contacting with the dustproof filter plate 42, and the dust is cleaned by periodically opening the sealing cover at the bottom of the noise reduction air inlet cylinder 31.

Example 2

The structure of the dustproof centrifugal fan of the embodiment is basically the same as that of the dustproof centrifugal fan of the embodiment 1, and the differences are that: the air guiding mechanism 5 includes two air guiding ducts 51 (see fig. 4 and 5). The cross sections of the two air ducts 51 are both arc-shaped and inclined, one air duct 51 is arranged in the noise reduction air inlet drum 31 far away from the fan shell 1, and the other air duct 51 is arranged in the noise reduction air inlet drum 31 at one side of the dustproof filter plate 42, so that the contact strength between the inlet air flow and the inner wall of the noise reduction air inlet drum 31 is reduced, and the generation of inlet air noise is reduced fundamentally.

Specifically, the inner surfaces of the air ducts 51 are all provided with the sound absorption layers 52, so that the sound absorption and noise reduction performance of the air ducts 51 is improved.

Furthermore, the noise reduction air inlet cylinder 31 comprises an outer sound insulation cylinder 311 and an inner sound insulation cylinder 312, the outer sound insulation cylinder 311 is arranged between the two flange plates 32, the inner sound insulation cylinder 312 is arranged on the inner surface of the outer sound insulation cylinder 311, the inner sound insulation cylinder 312 improves the sound absorption and noise reduction performance of the noise reduction air inlet cylinder 31, the outer sound insulation cylinder 311 improves the sound insulation and noise reduction performance of the noise reduction air inlet cylinder 31, the air outlet 2 of the fan is also arranged in a sound insulation and sound absorption double-layer structure, and the noise reduction performance of the air outlet 2 is improved.

The using method of the embodiment comprises the following steps: under the action of rotation of the fan impeller 61, outside air enters the noise reduction air inlet cylinder 31 and firstly passes through one air guide cylinder 51, as the cross section of the air guide cylinder 51 is arc-shaped and inclined, the air flow is guided by the air guide cylinder 51 to form concentrated air flow passing through the dustproof filter plate 42, and then is guided again by the other air guide cylinder 51, so that the air flow is concentrated and enters the fan shell 1 through the noise reduction air inlet cylinder 31, thereby reducing the generation of air inlet noise, meanwhile, the sound absorption layer 52 in the air guide cylinder 51 and the noise reduction air inlet cylinder 31 are arranged in a double-layer structure of an outer sound insulation cylinder 311 and an inner sound insulation cylinder, so that the air guide cylinder 51 and the noise reduction air inlet cylinder 31 have good sound insulation and absorption performance, further reducing the noise intensity of the centrifugal fan, and having better environmental protection performance.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a dustproof centrifugal fan, includes fan shell (1), its characterized in that: an air outlet (2) is arranged at one end of the fan shell (1), an air inlet is arranged at one side of the fan shell (1), the noise-reduction air inlet mechanism (3) is arranged on the air inlet, the interior of the noise-reduction air inlet mechanism (3) is provided with a dustproof mechanism (4), the noise reduction air inlet mechanisms (3) at two opposite sides of the dustproof mechanism (4) are internally provided with air guide mechanisms (5), a fan rotating shaft (6) is rotatably arranged in the fan shell (1), a plurality of fan impellers (61) are arranged on the fan rotating shaft (6), one end of the fan rotating shaft (6) penetrates through the fan shell (1) and is fixedly arranged with the output end of the servo motor (62) through a coupler, the other end of the fan rotating shaft (6) is connected with the dustproof mechanism (4), and the servo motor (62) is fixedly installed with the fan shell (1) through a supporting frame.

2. The dustproof centrifugal fan according to claim 1, characterized in that: the noise-reduction air inlet mechanism (3) comprises a noise-reduction air inlet cylinder (31), a flange plate (32) and an ash removal port (33), wherein the two opposite ends of the noise-reduction air inlet cylinder (31) are integrally provided with the flange plate (32), one of the flange plate (32) and a fan shell (1) at the air inlet port are fixedly installed, the bottom of the noise-reduction air inlet cylinder (31) is provided with the ash removal port (33), and the ash removal port (33) is provided with a sealing cover.

3. The dustproof centrifugal fan according to claim 2, characterized in that: the dustproof mechanism (4) comprises a dustproof filter plate (42) and a cleaning mechanism, the dustproof filter plate (42) is fixedly mounted inside the noise reduction air inlet cylinder (31) on one side, close to the air inlet, of the dust removing opening (33), and the cleaning mechanism is arranged on the dustproof filter plate (42).

4. The dustproof centrifugal fan according to claim 3, characterized in that: the cleaning mechanism comprises a linkage shaft (41), a cleaning plate (43) and a brush (44), one end of the fan rotating shaft (6) penetrates through the air inlet, and is fixedly installed with the linkage shaft (41) through a coupler, one end of the linkage shaft (41) penetrates through a dustproof filter plate (42) and the cleaning plate (43), and the brush (44) is arranged on one side of the cleaning plate (43).

5. The dustproof centrifugal fan according to claim 2, characterized in that: the air guide mechanism (5) comprises two air guide cylinders (51), the sections of the two air guide cylinders (51) are inclined in an arc shape, one air guide cylinder (51) is arranged in the noise reduction air inlet cylinder (31) far away from one side of the fan shell (1), and the other air guide cylinder (51) is arranged in the noise reduction air inlet cylinder (31) on one side of the dustproof filter plate (42).

6. The dustproof centrifugal fan according to claim 5, wherein: the inner surfaces of the air guide cylinders (51) are provided with sound absorption layers (52).

7. The dustproof centrifugal fan according to claim 5, wherein: the noise reduction air inlet cylinder (31) comprises an outer sound insulation cylinder (311) and an inner sound insulation cylinder (312), the outer sound insulation cylinder (311) is arranged between the two flange plates (32), and the inner sound insulation cylinder (312) is arranged on the inner surface of the outer sound insulation cylinder (311).