Centrifugal induced draft fan

Abstract

The utility model discloses a centrifugal induced draft fan, and belongs to the field of fans. A centrifugal induced draft fan comprises a frame, a driving device is fixed to the upper side of the frame, a first shell is fixed to the upper side of the frame through screws, an air inlet is formed in one side of the first shell, a dustproof component is fixed to one side of the frame and located on one side of the air inlet, and an air outlet is formed in the upper side of the first shell. The dustproof assembly is simple and quick to mount and dismount due to the design of the fixing assembly, the time cost of mounting and dismounting is reduced, an operator can easily pull out the dustproof assembly for cleaning due to the design of the second disc, each part can be independently cleaned due to the split design of the first connecting column and the second connecting column, and the working efficiency is improved. The cleaning convenience is improved, and mounting, dismounting and cleaning become simple and efficient.

Description

Technical Field

[0001] The utility model relates to the field of fans, in particular to a centrifugal induced draft fan. Background Art

[0002] Traditional centrifugal induced draft fans usually use a direct introduction method to introduce external airflow into the equipment. In this process, dust and debris entrained in the airflow may cause various hazards to the equipment, because dust and debris rub against mechanical parts inside the induced draft fan, which may cause serious wear and tear, affecting the performance and service life of the equipment. As dust and debris accumulate, the ventilation efficiency of the induced draft fan will gradually decrease, because these particles will block the flow of airflow, and too much dust and debris may cause blockage of the airflow channel and even cause equipment failure.

[0003] To solve these problems, existing centrifugal induced draft fans usually have dust screens at the air inlet to block dust and debris. However, this method has some limitations, such as the problem that the dust screen is easily blocked. Although the dust screen can block most dust and debris, it is easy to be blocked in a highly polluted environment or after long-term use, and the filtering effect is lost. Once the dust screen is blocked, it needs to be manually cleaned or replaced, which may be troublesome, especially in locations with limited space or difficult to access. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a centrifugal induced draft fan, which solves the problems raised by the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A centrifugal induced draft fan, comprising: a frame, a driving device is fixed on the upper side of the frame, a housing 1 is fixed on the upper side of the frame by screws, an air inlet is opened on one side of the housing 1, a dustproof component is fixed on one side of the frame, the dustproof component is located on one side of the air inlet, and an air outlet is opened on the upper side of the housing 1;

[0007] The dustproof component comprises a fixing component, one side of the frame is fixed with the fixing component by screws, and the inner side of the fixing component is fitted and plugged with a dustproof component.

[0008] Preferably, the driving device includes a motor, a motor is fixed on the upper side of the frame, a rotating disk 1 is fixed to the output end of the motor, a transmission shaft is connected to the upper side of the frame through a seat bearing, a rotating disk 2 is fixed to one side of the transmission shaft, a conveyor belt is fitted on the outer sides of the rotating disk 1 and the rotating disk 2, and an impeller is fixed to one side of the transmission shaft.

[0009] After the motor is electrically connected and started, the rotating disk connected to its output end begins to rotate, and rotating disk one and rotating disk two are connected through the transmission shaft, so rotating disk two also starts to rotate. As rotating disk one and rotating disk two rotate, the conveyor belt is driven and rotated on the outside of the two, and the impeller is fixedly connected to the transmission shaft and rotates with the transmission shaft, generating airflow to introduce wind, and then discharge it through the air outlet.

[0010] Preferably, the fixing assembly includes a second shell, the second shell is fixed to one side of the frame by screws, a fixing block is fixed to the outside of the second shell, a cylinder is fixed on the fixing block, a rotating block is rotatably arranged on the outside of the cylinder, and a clamping column is fixed to one side of the rotating block.

[0011] Preferably, the rotating block rotates in close fit with the outer side of the cylinder, and the inner side of the fixed block is in a fit relationship with the rotating block.

[0012] The clamping column is fixed on the fixing block and rotates in fit with the outer side of the cylinder. When the dustproof component needs to be fixed, the clamping column can be rotated to make it fit tightly with the clamping notch on the clamping block. It is located on the inner side of the fixing component, so it will not be suspended in the air. It is sufficient to fix it by clamping the fixing component.

[0013] Preferably, the dustproof component includes a disc one, which is inserted into the inner side of the outer shell two, a clamping block is fixed to the outer side of the disc one, a clamping recess is provided on the clamping block, a clamping column is fitted and clamped in the clamping recess provided on the clamping block, and a disc two is fixed to the inner side of the disc one, and the disc two is made of activated carbon.

[0014] Preferably, the disc 2 includes a dustproof frame, the dustproof frame is fixed on the inner side of the disc 1, the disc 2 shell is fixed on one side of the dustproof frame, a dustproof net is arranged on the inner side of the disc 2 shell, and a connecting column 2 is fixed on the inner side of the dustproof net.

[0015] Preferably, the disc 2 also includes a handle, a handle is fixed on the inner side of the dustproof frame, a connecting column 1 is fixed on one side of the handle, screw holes are provided on the connecting column 2 and the connecting column 1, and the connecting column 1 and the connecting column 2 are fixed by bolts.

[0016] When external dust or debris enters the air inlet and contacts the dustproof component, the dust and debris will first be blocked by the dustproof frame set in Disc 2, and then the fine dust and debris will be further blocked by the dustproof net on one side. The shell of Disc 2 is made of activated carbon, which can absorb some dust and further prevent dust. When cleaning is required, loosen the fixing component and pull out Disc 2 using the handle. It can also be disassembled and cleaned by loosening the bolts fixed on connecting column 1 and connecting column 2.

[0017] Compared with the prior art, the utility model provides a centrifugal induced draft fan, which has the following beneficial effects:

[0018] 1. The design of the fixed component of the utility model makes the installation and disassembly of the dustproof component simple and quick, reducing the time cost of installation and disassembly. The design of the disc 2 allows the operator to easily pull it out for cleaning. At the same time, the split design of the connecting column 1 and the connecting column 2 allows each component to be cleaned separately, improving the convenience of cleaning and making installation, disassembly and cleaning simple and efficient.

[0019] 2. The utility model adopts a triple dust prevention strategy. First, the dustproof frame is used to block larger dust and debris, and then the dustproof net is used to further filter fine dust. Finally, the activated carbon material of the second shell of the disc is used to absorb the remaining tiny particles, ensuring the cleanliness and efficient operation of the internal machinery. By optimizing the dustproof structure and materials, the induced draft fan greatly reduces the wear of the internal machinery, extends the service life of the equipment, and also reduces failures caused by dust and debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional structural schematic diagram of a centrifugal induced draft fan proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the side elevation structure of a centrifugal induced draft fan proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of the dust-proof component structure of a centrifugal induced draft fan proposed by the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of a fixed assembly of a centrifugal induced draft fan proposed by the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of a dust-proof component of a centrifugal induced draft fan proposed by the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the second disc of a centrifugal induced draft fan proposed by the utility model;

[0026] Figure 7 The utility model is a schematic diagram of the second structure of a centrifugal induced draft fan.

[0027] In the figure: 1. frame; 2. driving device; 21. motor; 22. rotating disk 1; 23. conveyor belt; 24. rotating disk 2; 25. transmission shaft; 26. impeller; 3. housing 1; 4. air inlet; 5. air outlet; 6. dustproof component; 61. fixing component; 611. housing 2; 612. fixing block; 613. cylinder; 614. rotating block; 615. clamping column; 62. dustproof component; 621. disk 1; 622. clamping block; 623. disk 2; 6231. dustproof frame; 6232. disk 2 housing; 6233. handle; 6234. connecting column 1; 6235. dustproof net; 6236. connecting column 2. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Example

[0030] Reference Figure 1-7 A centrifugal induced draft fan comprises: a frame 1, a driving device 2 is fixed on the upper side of the frame 1, characterized in that a housing 3 is fixed on the upper side of the frame 1 by screws, an air inlet 4 is opened on one side of the housing 3, a dustproof component 6 is fixed on one side of the frame 1, the dustproof component 6 is located on one side of the air inlet 4, and an air outlet 5 is opened on the upper side of the housing 3;

[0031] The dustproof component 6 includes a fixing component 61 . The fixing component 61 is fixed to one side of the frame 1 by screws, and a dustproof component 62 is inserted and fitted into the inner side of the fixing component 61 .

[0032] Working principle: When installing the dustproof component 62, it can be installed by interactive cooperation with the fixing component 61, and the clamping column 615 is fixed on the fixing block 612, and rotates in close contact with the outer side of the cylinder 613. When the dustproof component 62 needs to be fixed, the clamping column 615 can be rotated to make it fit tightly with the clamping notch on the clamping block 622, and 623 is located on the inner side of the fixing component 61, so it will not be suspended in the air. The clamping fixation of the fixing component 61 is sufficient to fix it, and at the same time ensures the stability of the dustproof component 62, so that it will not be displaced due to vibration or other factors during work. When it needs to be disassembled, just rotate the clamping column 615;

[0033] After the motor 21 provided on the driving device 2 is electrically connected and started, the rotating disk 1 22 connected to its output end starts to rotate, and the rotating disk 1 22 is connected to the rotating disk 24 through the transmission shaft 25, so the rotating disk 24 also starts to rotate. With the rotation of the rotating disk 1 22 and the rotating disk 24, the conveyor belt 23 is driven and rotated on the outside of the two. The impeller 26 is fixedly connected to the transmission shaft 25 and rotates with the transmission shaft 25 to generate airflow. When external dust or debris enters the air inlet 4 and contacts the dustproof component 62, Dust and debris will first be blocked by the dustproof frame 6231 set in the disc 2 623, and then the dustproof net 6235 on one side will further block the fine dust and debris. The shell 6232 of the disc 2 is made of activated carbon, which can absorb some dust and further prevent dust. When cleaning is required, loosen the fixing component 61, use the handle 6233 to pull out the disc 2 623, and loosen the bolts fixed on the connecting column 1 6234 and the connecting column 2 6236 to disassemble and clean it.

[0034] The driving device 2 includes a motor 21. The motor 21 is fixed on the upper side of the frame 1. A rotating disk 1 22 is fixed to the output end of the motor 21. A transmission shaft 25 is connected to the upper side of the frame 1 through a seat bearing. A rotating disk 24 is fixed to one side of the transmission shaft 25. A conveyor belt 23 is fitted on the outer sides of the rotating disks 1 22 and 24. An impeller 26 is fixed to one side of the transmission shaft 25.

[0035] After the motor 21 is electrically connected and started, the rotating disk 1 22 connected to its output end begins to rotate, and the rotating disk 1 22 is connected to the rotating disk 2 24 through the transmission shaft 25, so the rotating disk 2 24 also begins to rotate. With the rotation of the rotating disk 1 22 and the rotating disk 24, the conveyor belt 23 is driven and rotated on the outside of the two, and the impeller 26 is fixedly connected to the transmission shaft 25 and rotates with the transmission shaft 25, generating an airflow to introduce wind, and then discharge it through the air outlet 5.

[0036] The fixing assembly 61 includes a second shell 611, and the second shell 611 is fixed to one side of the frame 1 by screws. A fixing block 612 is fixed to the outer side of the second shell 611, a cylinder 613 is fixed on the fixing block 612, a rotating block 614 is rotatably provided on the outer side of the cylinder 613, and a clamping column 615 is fixed to one side of the rotating block 614.

[0037] The rotating block 614 and the outer side of the cylinder 613 are tightly fitted and rotated, and the inner side of the fixed block 612 and the rotating block 614 are in a fitting relationship.

[0038] The clamping column 615 is fixed on the fixing block 612 and rotates in engagement with the outer side of the cylinder 613. When the dustproof component 62 needs to be fixed, the clamping column 615 can be rotated to make it tightly fit and engage with the engaging recess on the clamping block 622. 623 is located on the inner side of the fixing component 61, so it will not be suspended in the air, and the engaging fixation of the fixing component 61 is sufficient to fix it.

[0039] The dustproof component 62 includes a disc 1 621, which is inserted into the inner side of the outer shell 2 611, and a clamping block 622 is fixed to the outer side of the disc 1 621. The clamping block 622 is provided with a clamping recess, and a clamping column 615 is clamped in the clamping recess provided on the clamping block 622. A disc 2 623 is fixed to the inner side of the disc 1 621, and the disc 2 623 is made of activated carbon.

[0040] Disc 2 623 includes a dustproof frame 6231 , the dustproof frame 6231 is fixed to the inner side of disc 1 621 , a disc 2 shell 6232 is fixed to one side of the dustproof frame 6231 , a dustproof net 6235 is provided on the inner side of the disc 2 shell 6232 , and a connecting column 2 6236 is fixed to the inner side of the dustproof net 6235 .

[0041] The second disk 623 also includes a handle 6233, which is fixed on the inner side of the dustproof frame 6231, and a connecting column 1 6234 is fixed on one side of the handle 6233. Screw holes are provided on the second connecting column 6236 and the first connecting column 6234, and the connecting column 1 6234 and the second connecting column 6236 are fixed by bolts.

[0042] When external dust or debris enters the air inlet 4 and contacts the dustproof component 62, the dust and debris will first be blocked by the dustproof frame 6231 provided in the disc 2 623, and then the fine dust and debris will be further blocked by the dustproof net 6235 on one side. The disc 2 shell 6232 is made of activated carbon material, which can absorb some dust and further prevent dust. When cleaning is required, loosen the fixing component 61, use the handle 6233 to pull out the disc 2 623, and disassemble it for cleaning by loosening the bolts fixed on the connecting column 1 6234 and the connecting column 2 6236.

Claims

1. A centrifugal induced draft fan, comprising: A frame (1), a driving device (2) being fixed on the upper side of the frame (1), characterized in that a housing (3) is fixed on the upper side of the frame (1) by screws, an air inlet (4) is provided on one side of the housing (3), a dustproof component (6) is fixed on one side of the frame (1), the dustproof component (6) is located on one side of the air inlet (4), and an air outlet (5) is provided on the upper side of the housing (3); The dustproof component (6) comprises a fixing component (61), one side of the frame (1) is fixed with the fixing component (61) by means of screws, and the inner side of the fixing component (61) is fitted and plugged with a dustproof component (62); The fixing assembly (61) comprises a second shell (611), the second shell (611) being fixed to one side of the frame (1) by means of screws, a fixing block (612) being fixed to the outer side of the second shell (611), a cylinder (613) being fixed to the fixing block (612), a rotating block (614) being rotatably provided on the outer side of the cylinder (613), and a clamping column (615) being fixed to one side of the rotating block (614); The rotating block (614) and the outer side of the cylinder (613) are tightly fitted and rotated, and the inner side of the fixed block (612) and the rotating block (614) are in a fitted relationship; The dustproof component (62) comprises a disk 1 (621), the disk 1 (621) being inserted into the inner side of the outer shell 2 (611), a clamping block (622) being fixed to the outer side of the disk 1 (621), a clamping recess being provided on the clamping block (622), a clamping column (615) being fitted and clamped in the clamping recess provided on the clamping block (622), and a disk 2 (623) being fixed to the inner side of the disk 1 (621), and the disk 2 (623) being made of activated carbon.

2. A centrifugal induced draft fan according to claim 1, characterized in that: The driving device (2) comprises a motor (21), the motor (21) being fixed on the upper side of the frame (1), a rotating disk 1 (22) being fixed on the output end of the motor (21), a transmission shaft (25) being connected to the upper side of the frame (1) via a seat bearing, a rotating disk 2 (24) being fixed on one side of the transmission shaft (25), a conveyor belt (23) being fitted on the outer sides of the rotating disk 1 (22) and the rotating disk 2 (24), and an impeller (26) being fixed on one side of the transmission shaft (25).

3. A centrifugal induced draft fan according to claim 1, characterized in that: The second disc (623) comprises a dustproof frame (6231), the dustproof frame (6231) is fixed on the inner side of the first disc (621), a second disc shell (6232) is fixed on one side of the dustproof frame (6231), a dustproof net (6235) is arranged on the inner side of the second disc shell (6232), and a second connecting column (6236) is fixed on the inner side of the dustproof net (6235).

4. A centrifugal induced draft fan according to claim 3, characterized in that: The second disc (623) also includes a handle (6233), the handle (6233) is fixed on the inner side of the dustproof frame (6231), and a connecting column (6234) is fixed on one side of the handle (6233), and screw holes are provided on the second connecting column (6236) and the first connecting column (6234), and the first connecting column (6234) and the second connecting column (6236) are fixed by bolts.

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