High speed centrifugal fan with internal dust removal

Abstract

The present application relates to the technical field of centrifugal fan, and more particularly to a high-speed centrifugal fan with internal dust removal. The high-speed centrifugal fan with internal dust removal comprises a fan body, a controller installed on the side of the fan body, a mounting frame connected to the side of the fan body, and a conveying belt. A T-shaped sliding groove is formed in the inner wall of the casing of the fan body, and the conveying belt is slidingly connected in the T-shaped sliding groove. The outer wall of the conveying belt is circumferentially spaced apart with tooth holes. The present application can realize the automatic cleaning of the inner wall of the casing and the outer wall of the impeller of the fan body through the cooperation of the conveying belt, the connecting rod, the connecting pipe and the first spray head. Specifically, the conveying belt can rotate along the T-shaped sliding groove under the drive of the driving assembly, driving the first spray head on the connecting rod and the connecting pipe to rotate around the outside of the impeller, so that the clean water provided by the water supply assembly is uniformly sprayed to the parts that need to be cleaned. This design can avoid the problem that the traditional centrifugal fan needs to be frequently disassembled and cleaned, significantly reducing the maintenance time and labor cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of centrifugal fan, in particular to a high-speed centrifugal fan with internal dust removal. BACKGROUND

[0002] As a kind of ventilation equipment widely used in industrial, commercial and civil fields, centrifugal fan is mainly used to realize the transportation of air or other gases by the high-speed rotation of impeller to generate pressure difference, however, in the actual use process, due to the existence of dust, particulate matter and other impurities in the environment, the centrifugal fan will inevitably accumulate these pollutants inside.

[0003] In the prior art, after long-term operation, the surface of the impeller and the inner wall of the casing of the centrifugal fan will usually be attached with a large amount of dust and particulate matter, the accumulation of these pollutants not only increases the running resistance of the fan, but also may cause the airflow passage to be narrowed, thereby significantly reducing the air volume and work efficiency, therefore, in order to ensure the normal operation and performance stability of the centrifugal fan, regular cleaning and maintenance become indispensable operation. However, the cleaning method of the traditional centrifugal fan usually needs to disassemble the casing, so as to thoroughly clean the internal impeller and the inner wall of the casing, this cleaning method not only has complex operation, consumes a lot of time and labor cost, but also is prone to problems such as poor sealing or assembly error in the reassembly process, which further affects the running performance and safety of the equipment, in addition, frequent disassembly and assembly will accelerate the wear of parts, increase the maintenance frequency and maintenance cost. SUMMARY

[0004] Therefore, the present application provides a high-speed centrifugal fan with internal dust removal, which can overcome the shortcomings of the prior art that the centrifugal fan needs to be disassembled and cleaned regularly, the cleaning method is not only complex in operation, but also frequent disassembly and assembly will accelerate the wear of parts, which will affect the running performance and safety of the equipment.

[0005] The technical implementation scheme of the present application is: a high-speed centrifugal fan with internal dust removal, comprising: a fan body; a controller installed on the side surface of the fan body; a mounting frame connected to the side surface of the fan body; a conveying belt, a T-shaped sliding groove is opened in the inner wall of the casing of the fan body, and the conveying belt is slidingly connected in the T-shaped sliding groove, and the outer wall of the conveying belt is circumferentially spaced apart; a conveying wheel is symmetrically connected to the inner wall of the mounting frame, and the conveying belt passes around the conveying wheel; a connecting rod is connected to the inner wall of the conveying belt; a connecting pipe is connected to the end of the connecting rod; a first spray head is installed on the connecting pipe in a spaced apart manner and is in communication; a driving assembly is arranged in the mounting frame for driving the conveying belt to rotate; a water supply assembly is arranged on the casing of the fan body for conveying water to the first spray head for spraying to wash the inner wall of the casing and the outer wall of the impeller of the fan body; a washing mechanism is arranged on the casing of the fan body for washing the inner wall of the impeller.

[0006] Further, the driving assembly comprises a connecting frame connected to the inner wall of the mounting frame, a brushless motor mounted on the connecting frame, and a driving gear mounted on the brushless motor and engaged with the tooth hole on the conveying belt.

[0007] Further, the water supply assembly comprises two connecting blocks symmetrically connected to the top of the casing of the fan body, a rotating cylinder rotatably connected to the connecting blocks, a driving motor mounted on the side surface of one of the connecting blocks and having an output shaft connected to the rotating cylinder, a water supply pipe wound around the rotating cylinder and having one end connected to the rotating cylinder and the other end connected to the connecting pipe, and a connector connected to the side surface of the other connecting block and rotatably connected to the rotating cylinder.

[0008] Further, the flushing mechanism comprises a fixed pipe connected to the casing of the fan body, and a second spray head mounted on the fixed pipe at intervals and in communication.

[0009] Further, the water supply assembly comprises two connecting blocks symmetrically connected to the top of the casing of the fan body, a rotating cylinder rotatably connected to the connecting blocks, a driving motor mounted on the side surface of one of the connecting blocks and having an output shaft connected to the rotating cylinder, a water supply pipe wound around the rotating cylinder and having one end connected to the rotating cylinder and the other end connected to the connecting pipe, and a connector connected to the side surface of the other connecting block and rotatably connected to the rotating cylinder.

[0010] Further, the flushing mechanism comprises a fixed pipe connected to the casing of the fan body, and a second spray head mounted on the fixed pipe at intervals and in communication.

[0011] Further, the flushing mechanism comprises a fixed pipe connected to the casing of the fan body, and a second spray head mounted on the fixed pipe at intervals and in communication.

[0012] Further, the flushing mechanism comprises a fixed pipe connected to the casing of the fan body, and a second spray head mounted on the fixed pipe at intervals and in communication.

[0013] The present application has the following advantages: 1. The conveying belt, connecting rod, connecting pipe and first spray head cooperate to automatically clean the inner wall of the casing and the outer wall of the impeller of the fan body. Specifically, the conveying belt rotates along the T-shaped sliding groove under the drive of the driving assembly, driving the first spray head on the connecting rod and the connecting pipe to rotate around the outside of the impeller, thereby uniformly spraying the water provided by the water supply assembly to the parts to be cleaned. This design avoids the problem of frequent disassembly and cleaning of traditional centrifugal fans, significantly reducing maintenance time and labor cost.

[0014] 2. This invention, through the cooperation of a fixed pipe and a second nozzle, can specifically rinse the inner wall of the impeller. The design of the fixed pipe ensures that the second nozzle accurately covers the inner wall area of ​​the impeller. Combined with the stable water flow provided by the water supply component, it can effectively remove dust and particulate matter accumulated inside the impeller. In addition, the drainage component can further ensure the timely discharge of wastewater, avoid secondary pollution, and improve the overall cleaning efficiency.

[0015] 3. This invention, through the cooperation of a photosensitive sensor, a light source, and an alarm, enables real-time monitoring of dust accumulation inside the fan body. The photosensitive sensor detects changes in the light intensity inside the casing. When dust accumulation causes the light intensity to fall below a preset value, the controller will trigger the alarm to remind staff to clean the fan in a timely manner. This intelligent monitoring mechanism not only improves the operational reliability of the equipment but also extends the service life of the fan body and reduces performance degradation caused by pollutant accumulation. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a cross-sectional view of the casing of the fan body of the present invention.

[0018] Figure 3 This is a schematic diagram of the installation of the conveyor belt and conveyor wheel of the present invention.

[0019] Figure 4 This is a schematic diagram showing the installation of the connecting rod, connecting pipe, and first nozzle of the present invention.

[0020] Figure 5 This is a schematic diagram of the installation of the drive component and water supply component of the present invention.

[0021] Figure 6 This is a schematic diagram of the connection between the water supply pipe and the connecting pipe of the present invention.

[0022] Figure 7 This is a schematic diagram of the installation of the fixed pipe, the second nozzle, and the drainage assembly of the present invention.

[0023] Figure 8 This is a schematic diagram of the installation of the ball bearings of the present invention.

[0024] Figure 9 This is a schematic diagram of the ball distribution structure of the present invention.

[0025] Figure 10 This is a schematic diagram showing the installation of the photosensitive sensor, scraper, and alarm of the present invention.

[0026] Figure 11 This is a schematic diagram of the installation of the light source of the present invention.

[0027] Meanings of the reference numerals in the figure: 1 - blower body, 101 - casing, 102 - impeller, 2 - controller, 3 - mounting frame, 4 - T-shaped chute, 5 - conveyor belt, 501 - tooth holes, 6 - conveyor wheel, 7 - connecting rod, 8 - connecting pipe, 9 - first spray head, 10 - connecting frame, 11 - brushless motor, 12 - driving gear, 13 - connecting gear, 14 - connecting block, 15 - rotating cylinder, 16 - driving motor, 17 - water supply pipe, 18 - joint, 19 - fixed pipe, 20 - second spray head, 21 - collection box, 22 - drain pipe, 23 - electric control valve, 24 - ball, 25 - photosensitive sensor, 26 - scraper, 27 - light source, 28 - alarm. Detailed implementation manners

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment: A high-speed centrifugal blower with internal dust removal, as Figures 1-7 shown, includes a blower body 1, a controller 2, a mounting frame 3, a conveyor belt 5, a conveyor wheel 6, a connecting rod 7, a connecting pipe 8, a first spray head 9, a driving component, a water supply component and a flushing mechanism. The front side of the blower body 1 is an air inlet, the upper left side of the blower body is an air outlet, the controller 2 is installed at the lower right part of the front side of the blower body 1, the upper left side of the blower body 1 is connected with a mounting frame 3, the mounting frame 3 is located on the left side of the air outlet, and the shape of the mounting frame 3 is "square", which will not affect the normal operation of the blower body 1. A T-shaped chute 4 is opened on the inner wall of the casing 101 of the blower body 1, and the conveyor belt 5 is slidably connected in the T-shaped chute 4, and tooth holes 501 are circumferentially spaced on the outer wall of the conveyor belt 5. The T-shaped chute 4 can limit the conveyor belt 5 to prevent the conveyor belt 5 from disengaging from the T-shaped chute 4. Both the upper and lower sides of the inner wall of the mounting frame 3 are rotatably connected with conveyor wheels 6, and the conveyor belt 5 bypasses the two conveyor wheels, so as to keep the conveyor belt 5 in a straightened state and ensure that the conveyor belt 5 can rotate smoothly. A connecting rod 7 is connected to the inner wall of the conveyor belt 5, and the lower end of the connecting rod 7 is connected with a connecting pipe 8. A plurality of first spray heads 9 are installed on the connecting pipe 8 at intervals and kept connected. The driving component is used to drive the conveyor belt 5 to rotate, the water supply component is used to convey water to the first spray heads 9 for spraying to wash the inner wall of the casing 101 of the blower body 1 and the outer wall of the impeller 102, and the flushing mechanism is used to wash the inner wall of the impeller 102.

[0030] As Figure 5As shown, the driving assembly includes a connecting frame 10, a brushless motor 11, a driving gear 12 and a connecting gear 13, the connecting frame 10 is connected to the middle of the inner wall of the mounting frame 3, the brushless motor 11 is installed on the upper part of the connecting frame 10, the driving gear 12 is installed on the brushless motor 11, and the driving gear 12 is engaged with the tooth hole 501 on the conveying belt 5, so that the brushless motor 11 drives the driving gear 12 to rotate, and the conveying belt 5 can be driven to rotate along the T-shaped sliding groove 4, and the connecting gear 13 is rotatably connected to the left middle part of the shell 101 of the fan body 1, and the connecting gear 13 is engaged with the tooth hole 501 on the conveying belt 5, and the connecting gear 13 is used to assist the rotation of the conveying belt 5.

[0031] As shown in Figure 5 and Figure 6 As shown, the water supply assembly includes a connecting block 14, a rotating cylinder 15, a driving motor 16, a water supply pipe 17 and a connector 18, the connecting block 14 is connected to the top of the shell 101 of the fan body 1, the rotating cylinder 15 is rotatably connected between the two connecting blocks 14, the rotating cylinder 15 is hollow, the driving motor 16 is installed on the rear side of the rear connecting block 14, and the output shaft of the driving motor 16 is connected to the rear end of the rotating shaft of the rotating cylinder 15, the water supply pipe 17 is wound on the rotating cylinder 15, one end of the water supply pipe 17 is connected to the rotating cylinder 15 and communicates with the inside of the rotating cylinder 15, the other end of the water supply pipe 17 passes through the middle of the connecting rod 7 and is connected to the middle of the connecting pipe 8, the connector 18 is connected to the front side of the front connecting block 14, the rear end of the connector 18 is rotatably connected to the front end of the rotating shaft of the rotating cylinder 15, and the connector 18 communicates with the inside of the rotating cylinder 15.

[0032] As shown in Figure 7 As shown, the flushing mechanism includes a fixed pipe 19, a second spray head 20 and a drainage assembly, the fixed pipe 19 is connected to the front side of the shell 101 of the fan body 1, the fixed pipe 19 is "L" shaped, the lower end of the fixed pipe 19 is located inside the impeller 102, a plurality of second spray heads 20 are installed on the lower part of the fixed pipe 19 and communicate with each other, and the drainage assembly is used to drain the waste water in the shell 101 of the fan body 1; the drainage assembly includes a collecting frame 21, a drainage pipe 22 and an electric control valve 23, the collecting frame 21 is connected to the bottom of the shell 101 of the fan body 1, and a water outlet hole (not shown in the figure) is formed in the bottom of the shell 101 of the fan body 1, so that the waste water in the shell 101 of the fan body 1 can fall down into the collecting frame 21, the drainage pipe 22 is connected to the right side of the collecting frame 21 and communicates with it, and the electric control valve 23 is installed on the drainage pipe 22.

[0033] In the initial state, the electric control valve 23 is in the closed state, the inside of the casing 101 will not be connected with the outside through the water outlet hole, the collecting frame 21 and the drain pipe 22, so that the fan body 1 can work normally, the impeller 102 rotates to introduce the outside air from the air inlet of the casing 101, and can apply a centrifugal force to the air, and then can throw the gas from the air outlet of the casing 101; first, the joint 18 front side and the fixed pipe 19 upper end are connected with the water pump, when it is needed to clean the inner wall of the casing 101 and the impeller 102, the water pump can be opened, so that the water pump can deliver clean water to the joint 18 and the fixed pipe 19, the clean water in the fixed pipe 19 can be delivered to the second nozzle 20, so that the second nozzle 20 can spray clean water to wash the inner wall of the impeller 102, the clean water in the joint 18 can be delivered to the first nozzle 9 through the rotating cylinder 15, the water supply pipe 17 and the connecting pipe 8, at the same time, the controller 2 can control the brushless motor 11 to drive the driving gear 12 to rotate, the driving gear 12 can drive the conveying belt 5 to rotate along the T-shaped sliding groove 4, the conveying belt 5 can drive the first nozzle 9 to rotate around the outside of the impeller 102 through the connecting rod 7, and the connecting rod 7 can pull out the water supply pipe 17, at the same time, the controller 2 can control the driving motor 16 to drive the rotating cylinder 15 to rotate, so that the rotating cylinder 15 can release the water supply pipe 17, so that the water supply pipe 17 can move along the T-shaped sliding groove 4, the T-shaped sliding groove 4 can limit the water supply pipe 17 to prevent the water supply pipe 17 from falling into the casing 101 and contacting the impeller 102, at this time, the first nozzle 9 can spray clean water to wash the outer wall of the impeller 102 and the inner wall of the casing 101, the waste water in the casing 101 can fall down to the collecting frame 21 through the water outlet hole, so that the casing 101 does not need to be disassembled, after the first nozzle 9 rotates one circle, the controller 2 can control the brushless motor 11 to drive the driving gear 12 to reverse, the driving gear 12 can drive the conveying belt 5 to reverse along the T-shaped sliding groove 4, so as to drive the first nozzle 9 to reverse one circle around the outside of the impeller 102, at the same time, the controller 2 can control the driving motor 16 to drive the rotating cylinder 15 to reverse, so that the rotating cylinder 15 can wind the water supply pipe 17, in the cleaning process, the impeller 102 is kept in the low speed rotating state, which can ensure that the impeller 102 is cleaned completely, after the cleaning is completed, the water pump can be closed, the first nozzle 9 and the second nozzle 20 do not spray water any more, the brushless motor 11 can be stopped working through the controller 2, so that the first nozzle 9 stops rotating, then the electric control valve 23 can be opened through the controller 2, so that the waste water in the collecting frame 21 can be discharged to the outside through the drain pipe 22, after the waste water is discharged, the electric control valve 23 can be closed through the controller 2.

[0034] As Figure 8 and Figure 9As shown, the T-shaped sliding groove 4 further comprises a plurality of balls 24, the front and rear sides of the T-shaped sliding groove 4 are rotatably connected with the plurality of balls 24, the balls 24 are arranged along the T-shaped sliding groove 4, the balls 24 are in contact with the outer wall of the conveying belt 5, and the balls 24 can reduce the friction between the conveying belt 5 and the T-shaped sliding groove 4, thereby assisting the rotation of the conveying belt 5.

[0035] As shown in Figure 10 and Figure 11 As shown, the fan body 1 further comprises a photosensitive sensor 25, a scraper 26, a light source 27 and an alarm 28, the photosensitive sensor 25 is installed on the inner wall of the rear lower part of the casing 101 of the fan body 1, the three scrapers 26 are connected with the outer wall of the impeller 102 of the fan body 1 in a circumferential interval, and the scrapers 26 are in contact with the front side of the photosensitive sensor 25 when the impeller 102 of the fan body 1 rotates, so as to scrape off the dust and particulate matter on the front side of the photosensitive sensor 25, thereby ensuring the detection accuracy of the photosensitive sensor 25, the light source 27 is installed on the front lower part of the inner wall of the casing 101 of the fan body 1, the light source 27 is located below and in front of the photosensitive sensor 25, and the alarm 28 is installed on the top of the casing 101 of the fan body 1; when the fan body 1 is working, the photosensitive sensor 25 and the light source 27 can be controlled to start working by the controller 2, the light source 27 can emit light to illuminate the inside of the casing 101, and the photosensitive sensor 25 can monitor the light intensity inside the casing 101 in real time, as the use time of the fan body 1 increases, the dust and particulate matter inside the casing 101 will increase, and the dust and particulate matter adhered to the surface of the light source 27 will also increase, thereby reducing the light intensity inside the casing 101, when the photosensitive sensor 25 detects that the light intensity inside the casing 101 is lower than the preset value, it means that the dust and particulate matter inside the casing 101 is relatively large, at this time, the photosensitive sensor 25 will send a signal, and the controller 2 will control the alarm 28 to emit an alarm sound after receiving the signal, thereby reminding the staff to clean the fan body 1 immediately.

[0036] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A high-speed centrifugal fan with internal dust removal, comprising a fan body (1), characterized in that, Also include: controller (2) is installed on the side of the fan body (1); installation frame (3) is connected to the side of the fan body (1); the conveyor belt (5), the inner wall of the casing (101) of the fan body (1) is provided with a T-shaped sliding groove (4), and the conveyor belt (5) is slidably connected in the T-shaped sliding groove (4), and the outer wall of the conveyor belt (5) is spaced apart and provided with a tooth hole (501); the conveying wheel (6) is symmetrically and rotatably connected to the inner wall of the installation frame (3), and the conveying belt (5) passes through the conveying wheel (6); the connecting rod (7) is connected to the inner wall of the conveying belt (5); the connecting pipe (8) is connected to the end of the connecting rod (7); the first nozzle (9) is spaced apart and installed on the connecting pipe (8) and kept in communication; the driving assembly is arranged in the installation frame (3) and used for driving the conveying belt (5) to rotate; the water supply assembly is arranged on the casing (101) of the fan body (1) and used for conveying water to the first nozzle (9) for spraying to wash the inner wall of the casing (101) and the outer wall of the impeller (102) of the fan body (1); the washing mechanism is arranged on the casing (101) of the fan body (1) and used for washing the inner wall of the impeller (102); The driving assembly comprises: a connecting frame (10) connected to the inner wall of the installation frame (3); a brushless motor (11) mounted on the connecting frame (10); a driving gear (12) mounted on the brushless motor (11), and the driving gear (12) is engaged with the tooth hole (501) on the conveying belt (5); a connecting gear (13) rotatably connected to the casing (101) of the fan body (1), and the connecting gear (13) is engaged with the tooth hole (501) on the conveying belt (5); The water supply assembly comprises: two connecting blocks (14) symmetrically connected to the top of the casing (101) of the fan body (1); a rotating cylinder (15) rotatably connected to the connecting block (14); a driving motor (16) mounted on one side of one of the connecting blocks (14), and the output shaft of the driving motor (16) is connected with the rotating cylinder (15); a water supply pipe (17) wound on the rotating cylinder (15), and one end of the water supply pipe (17) is connected with the rotating cylinder (15) and kept in communication, and the other end of the water supply pipe (17) is connected with the connecting pipe (8) and kept in communication; a connector (18) connected to the side of the other connecting block (14), and the connector (18) is rotatably connected with the rotating cylinder (15) and kept in communication.

2. A high speed centrifugal fan with internal dust removal according to claim 1, characterized in that, The washing mechanism comprises: a fixed pipe (19) connected to the casing (101) of the fan body (1); a second nozzle (20) spaced apart and installed on the fixed pipe (19) and kept in communication; a drainage assembly arranged at the bottom of the casing (101) of the fan body (1) for draining the wastewater inside the casing (101) of the fan body (1).

3. A high speed centrifugal fan with internal dust removal according to claim 2, characterized in that, The drainage assembly comprises: a collection frame (21) connected to the bottom of the casing (101) of the fan body (1) and kept in communication; a drainage pipe (22) connected to the side of the collection frame (21) and kept in communication; and an electric control valve (23) mounted on the drainage pipe (22).

4. A high speed centrifugal fan with internal dust removal according to claim 3, characterized in that, It also includes: the ball (24), the ball (24) is symmetrically connected to the T-shaped sliding groove (4), and the ball (24) is in contact with the outer wall of the conveying belt (5).

5. A high speed centrifugal fan with internal dust removal according to claim 4, characterized in that, It also includes: a photosensitive sensor (25) installed on the inner wall of the fan body (1) shell (101); a scraper (26) connected to the outer wall of the fan body (1) impeller (102) in a circumferential interval, and the scraper (26) can be in contact with the side of the photosensitive sensor (25) when the fan body (1) impeller (102) rotates; a light source (27) installed on the inner wall of the fan body (1) shell (101).

6. A high speed centrifugal fan with internal dust removal according to claim 5, characterized in that, It also includes: an alarm (28) installed on the top of the fan body (1) shell (101).

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