Dust exhaust centrifugal fan

Abstract

The utility model discloses a dust-exhausting centrifugal fan, including a carrier and a shell, wherein the carrier is connected to the shell through supporting feet, and an air outlet hood is connected to one side wall of the shell, a motor is arranged on the other side of the shell, and the output end of the motor is connected to a rotating shaft through a belt transmission structure, and a cover is arranged on the outer side of the belt transmission structure, and a fan blade is connected to the rotating shaft, and the fan blade is arranged inside the shell, and a dust collecting net is arranged on the outer side of the fan blade. In the dust-exhausting centrifugal fan, external cleaning water enters the water pipe through a pipeline and is sprayed from the inside to the outside to the dust collecting net through a nozzle, thereby achieving the purpose of self-cleaning, and the water mist sprayed by the nozzle scours the dust collecting net while settling the dust on the front side of the accelerator, and the brush plate will be driven to rotate when the rotating shaft drives the fan blade to rotate to clean the filter cover used to filter larger solid impurities, thereby ensuring the normal operation of the filter cover and preventing large-volume solid impurities from entering the interior of the device and damaging the fan blade.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilators, in particular to a dust exhausting centrifugal ventilator. Background Art

[0002] The full name of the centrifugal fan is a centrifugal fan. When the impeller rotates, the gas between the blades of the centrifugal fan is subjected to the centrifugal force to obtain kinetic energy and is discharged from the periphery of the impeller. It is guided by the volute-shaped casing to flow to the outlet of the fan, thereby forming a negative pressure in the center of the impeller, so that the external airflow flows in continuously to replenish, so that the fan can discharge gas. After searching, it is found that the centrifugal fan in the prior art is typically such as the publication number CN203867919U, a centrifugal fan, including a bracket, a motor and a duct, an impeller is arranged inside the duct, one side of the duct is arranged between the motor and the impeller, the exhaust port of the duct is square, the edge of the exhaust port is provided with a fixing screw hole, the duct can rotate 360°, and a protective plate is arranged on both sides of the impeller, and a blade is arranged in the protective plate. The other side of the duct is provided with an air inlet, the air inlet faces the impeller, and the air inlet is provided with a filter layer. Its main features are novel structure, small vibration, convenient use and adjustment, low noise, large air volume, high efficiency, and pollution-free emission.

[0003] In summary, when the existing centrifugal fan extracts airflow, its filter screen is easily clogged by dust, and manual cleaning is rather troublesome. In view of the above problems, it is necessary to improve the existing equipment. Utility Model Content

[0004] The utility model aims to provide a dust exhaust centrifugal fan to solve the problem that the filter screen of the existing centrifugal fan proposed in the above background technology is easily blocked by dust when extracting airflow, and manual cleaning is relatively troublesome.

[0005] To achieve the above object, the utility model provides the following technical solution: a dust removal centrifugal fan, comprising a carrier and a shell, characterized in that:

[0006] The carrier is connected to the shell through supporting feet, and an air outlet cover is connected to one side wall of the shell, a motor is arranged on the other side of the shell, and the output end of the motor is connected to the rotating shaft through a belt transmission structure, and a cover is arranged on the outside of the belt transmission structure, and a fan blade is connected to the rotating shaft, and the fan blade is arranged inside the shell, and a dust collecting net is arranged on the outside of the fan blade;

[0007] A water pipe is arranged on the front outer wall of the shell, a nozzle is arranged on the water pipe, and a filter cover is arranged on the outer side of the water pipe.

[0008] Preferably, a filtering mechanism is provided inside the air outlet hood, and a debris removal valve is connected to the bottom of the air outlet hood.

[0009] Preferably, the filtering mechanism comprises a nano silver filter, an activated carbon filter, a dust filter and a frame, and the nano silver filter, the activated carbon filter and the dust filter are installed inside the frame from top to bottom.

[0010] Preferably, the frame is connected to the air outlet hood via a connecting piece, and the positions of the frame and the impurity removal valve in the air outlet hood correspond to each other in vertical direction.

[0011] Preferably, the rotating shaft is threadedly connected to the clamping block, and the rotating shaft is connected to the brush plate through a rotating frame.

[0012] Preferably, the rotating frame is engaged with the brush plate, and the brush plate is in contact with the inner wall of the filter cover, and the rotating frame is distributed on the card block in a circular array.

[0013] Preferably, the nozzles are distributed on the water pipe in a circular array, and the nozzles are inclined to gather inwards.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the dust removal centrifugal fan,

[0015] (1) The utility model can effectively solve the problem that the filter screen of the existing centrifugal fan is easily blocked by dust when extracting airflow, and manual cleaning is troublesome through the coordinated use of a water pipe, a nozzle and a brush plate. External cleaning water enters the water pipe through a pipe and is sprayed from the inside to the outside to the dust collecting net through the nozzle, thereby achieving the purpose of self-cleaning. At the same time, the water mist sprayed by the nozzle flushes the dust collecting net and settles the dust on the front side of the accelerator. When the rotating shaft drives the fan blades to rotate, the brush plate will be driven to rotate to clean the filter cover used to filter larger solid impurities, thereby ensuring the normal operation of the filter cover and preventing large solid impurities from entering the device and damaging the fan blades;

[0016] (2) The utility model can effectively solve the problem that the existing centrifugal fan only has the function of filtering impurities and does not meet the filtering requirements of a higher degree of crystallization through the coordinated use of the filtering mechanism and the impurity removal valve. The dust filter, activated carbon filter and nano silver filter in the filtering mechanism will filter and adsorb the fine dust, harmful substances and bacteria in the airflow in turn, thereby improving the gas treatment quality of the device. At the same time, the staff can clean the pollutants filtered out by the dust filter by opening and closing the impurity removal valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall axial side structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the connection relationship between the rotating shaft, fan blades, clamping blocks, rotating frame, brush plate and filter cover of the utility model;

[0019] Figure 3It is a schematic diagram of the overall structure of the connection relationship between the filtering mechanism, the impurity removal valve and the air outlet hood of the utility model.

[0020] In the figure: 1. supporting frame; 2. supporting feet; 3. shell; 4. air outlet hood; 5. filtering mechanism; 501. nano silver filter; 502. activated carbon filter; 503. dust filter; 504. frame; 6. motor; 7. cover; 8. rotating shaft; 9. fan blade; 10. block; 11. rotating frame; 12. brush plate; 13. filter cover; 14. water pipe; 15. nozzle; 16. debris removal valve; 17. dust collection net. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 The utility model provides a technical solution: a dust removal centrifugal fan,

[0023] Embodiment 1

[0024] like Figure 1 and Figure 2 As shown, the carrier 1 is connected to the housing 3 through the supporting feet 2, and an air outlet cover 4 is connected to one side wall of the housing 3, a motor 6 is arranged on the other side of the housing 3, and the output end of the motor 6 is connected to the rotating shaft 8 through a belt transmission structure, and a cover 7 is arranged on the outer side of the belt transmission structure, and a fan blade 9 is connected to the rotating shaft 8, and the fan blade 9 is arranged inside the housing 3, and a dust collecting net 17 is arranged on the outer side of the fan blade 9;

[0025] In a further embodiment, a filtering mechanism 5 is disposed inside the air outlet hood 4 , and a debris removal valve 16 is connected to the bottom of the air outlet hood 4 .

[0026] A water pipe 14 is arranged on the front outer wall of the shell 3 , and a nozzle 15 is arranged on the water pipe 14 . Meanwhile, a filter cover 13 is arranged on the outer side of the water pipe 14 .

[0027] In a further embodiment, the rotating shaft 8 is threadedly connected to the clamping block 10 , and the rotating shaft 8 is connected to the brush plate 12 via the rotating frame 11 .

[0028] In a further embodiment, the rotating frame 11 is engaged with the brush plate 12 , and the brush plate 12 is in contact with the inner wall of the filter cover 13 , and the rotating frame 11 is distributed on the clamping block 10 in a ring array.

[0029] In a further embodiment, the nozzles 15 are distributed on the water pipe 14 in a circular array, and the nozzles 15 are inclined to gather inwards.

[0030] Specifically, in the actual working process, first use a pipeline to connect the water pipe 14 to the external water supply equipment, and then connect the power starter. The motor 6 drives the rotating shaft 8 through the belt transmission structure to drive the fan blades 9 to rotate to extract the external airflow. When the extracted airflow passes through the filter cover 13, the large volume of impurities it carries will be blocked on the outside, and the dust and debris entering the device with the airflow will be filtered by the dust collecting net 17. At this time, the water entering the water pipe 14 is atomized by the nozzle 15 and will be blown out from the inside of the dust collecting net 17 to flush the filtered pollutants. At the same time, the water curtain generated by the flushing has a sedimentation effect on the external dust. After filtration, the gas is filtered by the filter mechanism 5 and then discharged through the air outlet hood 4.

[0031] Embodiment 2

[0032] This embodiment is a further description of the above embodiment. It should be understood that this embodiment includes all the aforementioned technical features and is further described in detail.

[0033] like Figure 1 and Figure 3 As shown, in a further embodiment, the filtering mechanism 5 includes a nano silver filter 501, an activated carbon filter 502, a dust filter 503 and a frame 504, and the nano silver filter 501, the activated carbon filter 502 and the dust filter 503 are installed inside the frame 504 from top to bottom.

[0034] In a further embodiment, the frame 504 is connected to the air outlet hood 4 via a connecting piece, and the frame 504 and the impurity removal valve 16 correspond to each other in the upper and lower positions in the air outlet hood 4 .

[0035] Specifically, in the actual working process, the dust filter 503, the activated carbon filter 502 and the nano silver filter 501 will filter and adsorb the fine dust, harmful substances and bacteria in the airflow in turn, and thereby improve the gas treatment quality of the device. The staff can remove the filter mechanism 5 as a whole from the inside of the air outlet hood 4 by disassembling the connecting parts for replacement, and the disassembly process is relatively convenient.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dust removal centrifugal fan, comprising a carrier (1) and a housing (3), characterized in that: The carrier frame (1) is connected to the shell (3) via a supporting foot (2), and an air outlet cover (4) is connected to one side wall of the shell (3); a motor (6) is arranged on the other side of the shell (3), and the output end of the motor (6) is connected to the rotating shaft (8) via a belt transmission structure, and a cover (7) is arranged on the outer side of the belt transmission structure; a fan blade (9) is connected to the rotating shaft (8), and the fan blade (9) is arranged inside the shell (3); and a dust collecting net (17) is arranged on the outer side of the fan blade (9); A water pipe (14) is arranged on the front outer wall of the shell (3), a nozzle (15) is arranged on the water pipe (14), and a filter cover (13) is arranged on the outer side of the water pipe (14).

2. A dust removal centrifugal fan according to claim 1, characterized in that: A filtering mechanism (5) is arranged inside the air outlet hood (4), and a debris removal valve (16) is connected to the bottom of the air outlet hood (4).

3. A dust removal centrifugal fan according to claim 2, characterized in that: The filtering mechanism (5) comprises a nano silver filter (501), an activated carbon filter (502), a dust filter (503) and a frame (504), and the nano silver filter (501), the activated carbon filter (502) and the dust filter (503) are installed inside the frame (504) from top to bottom.

4. A dust exhaust centrifugal fan according to claim 3, characterized in that: The frame (504) is connected to the air outlet hood (4) via a connecting piece, and the frame (504) and the impurity removal valve (16) correspond in position up and down in the air outlet hood (4).

5. The dust exhaust centrifugal fan according to claim 1, characterized in that: The rotating shaft (8) is threadedly connected to the clamping block (10), and the rotating shaft (8) is connected to the brush plate (12) via a rotating frame (11).

6. A dust removal centrifugal fan according to claim 5, characterized in that: The rotating frame (11) is connected to the brush plate (12) by snapping, and the brush plate (12) is in contact with the inner wall of the filter cover (13), and the rotating frame (11) is distributed on the clamping block (10) in a circular array.

7. The dust exhaust centrifugal fan according to claim 1, characterized in that: The nozzles (15) are distributed on the water pipe (14) in a circular array, and the nozzles (15) are inclined and gathered inwards.

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