Smoke abatement device
By designing a detachable filter mesh and spraying mechanism, the problem of blockage of the filter equipment of the diesel generator smoke removal equipment is solved, the smoke removal effect is improved, and the continuous and efficient operation of the equipment is ensured.
Patent Information
- Application Number
- CN202421094442.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-20
AI Technical Summary
After the existing diesel generator smoke removal equipment is used for too long, the filtering equipment is easily blocked due to impurities filtration, resulting in a reduced smoke removal effect and is difficult to disassemble or clean.
A smoke-removing device is designed, by providing a detachable filter and spraying mechanism on the filter mechanism, allowing the filter to be quickly removed and cleaned when the filter mechanism is blocked, and impurities in the smoke are washed by spraying water.
The smoke removal effect of diesel generators is improved, ensuring the continuous and efficient operation of the filter equipment, and avoiding the reduction of smoke removal effect caused by blockage.
Smart Images

Figure CN222305225U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of smoke elimination devices, in particular to a smoke elimination device. Background Art
[0002] Existing diesel generator sets have slow heat dissipation, and the exhaust gas produced by the fuel contains acidic gases such as SO2 and NOX. Therefore, the flue gas emitted by the diesel generator sets needs to be treated before being discharged to reduce the pollution caused to the environment.
[0003] Most diesel generator smoke elimination equipment cannot replace or disassemble the filtering equipment for cleaning. When used for too long, the filtering equipment may be blocked due to filtering more impurities, thereby reducing the effect of diesel generator smoke elimination;
[0004] Therefore, it is necessary to propose a smoke elimination device to solve the above-mentioned technical problems and provide a new technical solution. Utility Model Content
[0005] Based on this, it is necessary to provide a smoke elimination device to address the above-mentioned technical problems. Through the structural design of the filtering mechanism, the filtering mechanism can filter the smoke exhausted by the diesel generator. When there are many impurities filtered on the filtering mechanism, the filtering mechanism can be quickly removed from the chassis for cleaning, thereby improving the smoke elimination effect of the diesel generator.
[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0007] A smoke elimination device is applied to a diesel generator.
[0008] The smoke elimination device specifically includes a base, a chassis is arranged at one end of the upper end of the base, an air outlet is opened on the top of the chassis, second support columns are fixedly connected at the positions of four end corners of the lower end of the chassis, one end of the second support column away from the chassis is fixedly connected to the base, a first water tank is arranged at the other end of the upper end of the base, the first support columns are fixedly connected at the positions of four end corners of the lower end of the first water tank, one end of the first support column away from the first water tank is fixedly connected to the base, a filling port is fixedly connected at the top of the first water tank, the filling port is communicated with the first water tank, a drainage pipe groove is fixedly connected to the middle part of the lower end of the chassis, the drainage pipe groove is communicated with the chassis, a second water tank is arranged at the lower end of the chassis, and the second water tank is located below the drainage pipe groove The drain pipe groove is fixedly connected to the second water tank at one end away from the chassis, and the drain pipe groove is communicated with the second water tank. The second water tank is fixedly connected to the second connecting pipe at one end away from the first water tank, and the second connecting pipe is communicated with the second water tank. A plurality of slots are provided on one side of the chassis, and filtering mechanisms are provided inside the slots. A spraying mechanism is provided inside the chassis and at the upper end of the filtering mechanism. An exhaust mechanism is provided inside the chassis and at the upper end of the spraying mechanism. A conveying mechanism is provided at the upper end of the base and at a position between the chassis and the first water tank. A first connecting pipe is fixedly connected to the outer side of the chassis away from one end of the first water tank and at the lower end of the filtering mechanism, and the first connecting pipe is communicated with the chassis.
[0009] As a preferred embodiment of the smoke elimination device provided by the utility model, the filtering mechanism includes a frame, a filter net is fixedly connected to the middle part of the frame, the frame is plug-connected with the slot, both ends of the frame located inside the chassis are provided with a first fixed frame, the end of the first fixed frame away from the frame is fixedly connected to the end inside the chassis, the end of the first fixed frame close to the frame is provided with a slide groove, both ends of the frame and at positions corresponding to the slide groove are fixedly connected with sliders, the sliders at the same end are plug-connected with the slide grooves at the same end, a handle is fixedly connected to the middle part of the frame on the outer side of the chassis, and both ends of the frame on the outer side of the chassis are provided with limiting mechanisms.
[0010] As a preferred embodiment of the smoke elimination device provided by the utility model, the limiting mechanism includes a round rod and an L-shaped block, the round rod is fixedly connected to the frame, the outer side of the round rod is rotatably connected with a snap-fit block, the L-shaped block is fixedly connected to the chassis, and the snap-fit block is snap-fitted with the L-shaped block.
[0011] As a preferred embodiment of the smoke elimination device provided by the utility model, the spraying mechanism includes a water diversion box, one end of the water diversion box is fixedly connected to one end of the inner wall of the chassis close to the conveying mechanism, the other end of the water diversion box is fixedly connected to a plurality of water storage pipes, and the lower end of the water storage pipes is fixedly connected to a plurality of spray heads.
[0012] As a preferred embodiment of the smoke elimination device provided by the utility model, the conveying mechanism includes a water pump, an end of the water pump close to the second water tank is fixedly connected to a second fixing frame, the second fixing frame is fixedly connected to the second water tank, the water pumping end of the second fixing frame is fixedly connected to a first water pipe, an end of the first water pipe away from the water pump is fixedly connected to the first water tank, the first water pipe is communicated with the first water tank, the conveying end of the water pump is fixedly connected to the second water pipe, an end of the second water pipe away from the water pump passes through one end of the chassis and is fixedly connected to a water diversion box inside the chassis, and the second water pipe is communicated with the water diversion box.
[0013] As a preferred embodiment of the smoke elimination device provided by the utility model, the exhaust mechanism includes a connecting column, which is located in the middle position of the upper end of the interior of the chassis, and a plurality of fixing rods are fixedly connected to the surrounding side of the connecting column, and one end of the fixing rod away from the connecting column is fixedly connected to the inner wall of the chassis, and the middle of the upper end of the connecting column is fixedly connected to a cavity, and the interior of the cavity is fixedly connected to a drive motor, and the output end of the drive motor is fixedly connected to a fan blade.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] The utility model provides a smoke elimination device, which, through the structural design of the filter mechanism, allows the filter mechanism to filter the smoke exhausted by the diesel generator. When there are many impurities filtered by the filter mechanism, the filter mechanism can be quickly removed from the chassis for cleaning, thereby improving the smoke elimination effect of the diesel generator.
[0016] The utility model provides a smoke elimination device, which is designed through the structural coordination of a first water tank, a conveying mechanism, and a spraying mechanism, so that when eliminating smoke from a diesel generator, water can be sprayed into the chassis through the coordination of the structure, and then impurities in the smoke are flushed away by the sprayed water, thereby improving the effect of eliminating smoke from the diesel generator. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 A schematic diagram of the overall structure of a smoke elimination device provided by the utility model;
[0019] Figure 2 A schematic diagram of the structure of a spray mechanism and an exhaust mechanism of a smoke elimination device provided by the utility model;
[0020] Figure 3 A schematic diagram of the structure of a filter mechanism of a smoke elimination device provided by the utility model;
[0021] Figure 4 An enlarged view of a smoke elimination device A provided by the utility model;
[0022] Figure 5 A schematic diagram of the structure of a spray mechanism of a smoke elimination device provided by the utility model;
[0023] Figure 6 A schematic diagram of the structure of a conveying mechanism of a smoke elimination device provided by the utility model;
[0024] Figure 7 The utility model provides a schematic structural diagram of an exhaust mechanism of a smoke elimination device.
[0025] The markings in the figure are as follows:
[0026] 1. Base; 2. Chassis; 3. Air outlet; 4. First connecting pipe; 5. Filter mechanism; 6. First water tank; 7. Filling port; 8. First support column; 9. Conveying mechanism; 10. Second water tank; 11. Drain pipe groove; 12. Second connecting pipe; 13. Spraying mechanism; 14. Exhaust mechanism; 15. Second support column; 16. Frame; 17. Filter; 18. First fixed frame; 19. Slide; 20. Slider; 21. Limiting mechanism; 22. L-shaped block; 23. Snap-fit block; 24. Round rod; 25. Water distribution box; 26. Water storage pipe; 27. Spraying head; 28. Water pump; 29. Second fixed frame; 30. First water pipe; 31. Second water pipe; 32. Connecting column; 33. Fixed rod; 34. Cavity; 35. Drive motor; 36. Fan blade; 37. Handle. DETAILED DESCRIPTION
[0027] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0028] As described in the background technology, most diesel generator smoke elimination equipment cannot replace or disassemble the filtering equipment for cleaning. When used for too long, the filtering equipment may become clogged due to filtering too many impurities, thereby reducing the effect of diesel generator smoke elimination.
[0029] In order to solve this technical problem, the utility model provides a smoke elimination device, which is applied to a diesel generator.
[0030] Specifically, please refer to Figure 1 , Figure 2 A smoke elimination device specifically includes a base 1, a chassis 2 is arranged at one end of the upper end of the base 1, an air outlet 3 is opened on the top of the chassis 2, second support columns 15 are fixedly connected at the positions of the four end corners of the lower end of the chassis 2, and the second support column 15 is fixedly connected to the base 1 at one end away from the chassis 2, a first water tank 6 is arranged at the other end of the upper end of the base 1, a first support column 8 is fixedly connected at the positions of the four end corners of the lower end of the first water tank 6, and the first support column 8 is fixedly connected to the base 1 at one end away from the first water tank 6, a filling port 7 is fixedly connected to the top of the first water tank 6, and the filling port 7 is connected to the first water tank 6, a drainage pipe groove 11 is fixedly connected to the middle part of the lower end of the chassis 2, and the drainage pipe groove 11 is connected to the chassis 2, and a second water tank 10 is arranged at the lower end of the chassis 2, and the second water tank 10 is located at the lower end of the drainage pipe groove 11 and connected to the base 1 is fixedly connected, one end of the drainage pipe groove 11 away from the chassis 2 is fixedly connected to the second water tank 10, and the drainage pipe groove 11 is connected to the second water tank 10. The second water tank 10 is fixedly connected to one end of the second water tank 10 away from the first water tank 6. The second connecting pipe 12 is connected to the second water tank 10. A plurality of slots are opened on one side of the chassis 2, and the insides of the slots are all provided with filtering mechanisms 5. A spraying mechanism 13 is provided inside the chassis 2 and at the upper end of the filtering mechanism 5. An exhaust mechanism 14 is provided inside the chassis 2 and at the upper end of the spraying mechanism 13. A conveying mechanism 9 is provided at the upper end of the base 1 and at a position between the chassis 2 and the first water tank 6. A first connecting pipe 4 is fixedly connected to the outer side of the chassis 2 away from one end of the first water tank 6 and at the lower end of the filtering mechanism 5. The first connecting pipe 4 is connected to the chassis 2.
[0031] The utility model provides a smoke elimination device, which, through the structural design of the filter mechanism 5, allows the filter mechanism 5 to filter the smoke exhausted by the diesel generator. When there are many impurities filtered on the filter mechanism 5, the filter mechanism 5 can be quickly removed from the chassis 2 for cleaning, thereby improving the smoke elimination effect of the diesel generator.
[0032] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.
[0033] Embodiment 1:
[0034] Please refer to Figure 1-Figure 6 A smoke elimination device comprises a base 1, wherein a chassis 2 is arranged at one end of the upper end of the base 1, wherein an air outlet 3 is provided at the top of the chassis 2 in order to discharge the smoke processed inside the chassis 2, wherein in order to support the chassis 2, second support columns 15 are fixedly connected at the positions of the four end corners of the lower end of the chassis 2, and the second support column 15 is fixedly connected to the base 1 at one end away from the chassis 2, and a first water tank 6 is arranged at the other end of the upper end of the base 1, wherein in order to support the first water tank 6, first support columns 8 are fixedly connected at the positions of the four end corners of the lower end of the first water tank 6, and the first support column 8 is fixedly connected to the base 1 at one end away from the first water tank 6, wherein in order to facilitate the addition of water to the inside of the first water tank 6, a filling port 7 is fixedly connected to the top of the first water tank 6, and the filling port 7 is connected to the first water tank 6, and a drainage pipe groove 11 is fixedly connected to the middle part of the lower end of the chassis 2, and the drainage pipe groove 11 is connected to the chassis 2, A second water tank 10 is provided at the lower end of the chassis 2, and the second water tank 10 is located at the lower end of the drainage pipe groove 11 and is fixedly connected to the base 1, and the end of the drainage pipe groove 11 away from the chassis 2 is fixedly connected to the second water tank 10, and the drainage pipe groove 11 is connected to the second water tank 10, and the end of the second water tank 10 away from the first water tank 6 is fixedly connected to the second connecting pipe 12, and the second connecting pipe 12 is connected to the second water tank 10. A plurality of notches are provided on one side of the chassis 2, and filtering mechanisms 5 are provided inside the notches. A spraying mechanism 13 is provided inside the chassis 2 and at the upper end of the filtering mechanism 5. An exhaust mechanism 14 is provided inside the chassis 2 and at the upper end of the spraying mechanism 13. A conveying mechanism 9 is provided at the upper end of the base 1 and at a position between the chassis 2 and the first water tank 6. A first connecting pipe 4 is fixedly connected to the outer side of the chassis 2 away from the first water tank 6 and at the lower end of the filtering mechanism 5, and the first connecting pipe 4 is connected to the chassis 2.
[0035] Through the above-mentioned structural design, it can be known that the exhaust pipe of the diesel generator is connected to the first connecting pipe 4, and then the exhaust smoke is discharged into the interior of the chassis 2 through the first connecting pipe 4, and then the smoke exhausted by the diesel generator is filtered through the filtering mechanism 5, and the water in the first water tank 6 can be transported to the spraying mechanism 13 through the conveying mechanism 9, and then the impurities in the smoke can be flushed through the spraying mechanism 13, and then the water sprinkled by the spraying mechanism 13 slides into the interior of the second water tank 10 through the drainage pipe groove 11, and then the waste water in the second water tank 10 can be discharged through the second connecting pipe 12.
[0036] The filtering mechanism 5 includes a frame 16, a filter screen 17 is fixedly connected to the middle of the frame 16, the frame 16 is plugged into the slot, both ends of the frame 16 located inside the chassis 2 are provided with a first fixing frame 18, the end of the first fixing frame 18 away from the frame 16 is fixedly connected to the end inside the chassis 2, and the end of the first fixing frame 18 close to the frame 16 is provided with a slide groove 19, both ends of the frame 16 and at positions corresponding to the slide groove 19 are fixedly connected with sliders 20, the sliders 20 at the same end are plugged into the slide groove 19 at the same end, a handle 37 is fixedly connected to the middle of the frame 16 on the outer side of the chassis 2, and both ends of the frame 16 on the outer side of the chassis 2 are provided with limiting mechanisms 21.
[0037] Specifically, the limiting mechanism 21 includes a round rod 24 and an L-shaped block 22 . The round rod 24 is fixedly connected to the frame 16 . A buckle block 23 is rotatably connected to the outer side of the round rod 24 . The L-shaped block 22 is fixedly connected to the chassis 2 . The buckle block 23 is buckled with the L-shaped block 22 .
[0038] Through the above structural design, it can be known that impurities in the smoke are filtered through the filter 17. When there are many impurities on the filter 17 and the filter 17 needs to be cleaned, the snap-fit blocks 23 at both ends of the frame 16 can be rotated toward the end away from the L-shaped block 22 with the center of the round rod 24 as the axis, so that the snap-fit blocks 23 and the L-shaped block 22 are separated. After the snap-fit blocks 23 and the L-shaped block 22 are separated, the movement limit of the frame 16 is released, and the handle 37 can be pulled toward the outside of the chassis 2. The pulled handle 37 drives the frame 16 to move toward the outside of the chassis 2. After the frame 16 is completely pulled out of the chassis 2, the impurities on the filter 17 can be cleaned.
[0039] Specifically, the spraying mechanism 13 includes a water separation box 25, one end of which is fixedly connected to one end of the inner wall of the chassis 2 close to the conveying mechanism 9, and the other end of the water separation box 25 is fixedly connected to multiple water storage pipes 26, and the lower end of the water storage pipes 26 is fixedly connected to multiple spray heads 27.
[0040] Specifically, the conveying mechanism 9 includes a water pump 28, an end of the water pump 28 close to the second water tank 10 is fixedly connected to a second fixing frame 29, the second fixing frame 29 is fixedly connected to the second water tank 10, the water pumping end of the second fixing frame 29 is fixedly connected to a first water pipe 30, an end of the first water pipe 30 away from the water pump 28 is fixedly connected to the first water tank 6, the first water pipe 30 is connected to the first water tank 6, the conveying end of the water pump 28 is fixedly connected to a second water pipe 31, an end of the second water pipe 31 away from the water pump 28 passes through an end of the chassis 2 and is fixedly connected to the water diversion box 25 inside the chassis 2, and the second water pipe 31 is connected to the water diversion box 25.
[0041] Through the above-mentioned structural design, it can be known that when it is necessary to sprinkle water inside the chassis 2, the water pump 28 can be started, and the started water pump 28 can pump out the water inside the first water tank 6 through the first water pipe 30, and the pumped water is transported to the inside of the water distribution box 25 through the second water pipe 31, and the water is transported to the inside of multiple water storage pipes 26 through the water distribution box 25, and then the water inside the water storage pipe 26 is sprayed into the inside of the chassis 2 through the spray head 27, and then the impurities in the smoke can be flushed away by the spraying of water by the spray head 27.
[0042] Embodiment 2:
[0043] The smoke elimination device provided in Example 1 is further optimized. Specifically, Figure 7 As shown, the exhaust mechanism 14 includes a connecting column 32, which is located in the middle position of the upper end of the chassis 2. In order to fix the connecting column 32 in a suspended position in the middle of the chassis 2, a plurality of fixing rods 33 are fixedly connected to the surrounding side of the connecting column 32, and one end of the fixing rod 33 away from the connecting column 32 is fixedly connected to the inner wall of the chassis 2. A cavity 34 is fixedly connected to the middle of the upper end of the connecting column 32, and a drive motor 35 is fixedly connected to the interior of the cavity 34, and a fan blade 36 is fixedly connected to the output end of the drive motor 35.
[0044] Through the above structural design, it can be known that when it is necessary to accelerate the outflow of air inside the chassis 2, the drive motor 35 inside the cavity 34 can be started, and the started drive motor 35 can drive the fan blades 36 to rotate with the center of the circle of the output end of the drive motor 35 as the axis, and then the high-speed rotation of the fan blades 36 can accelerate the air inside the chassis 2 to flow out to the outside through the air outlet 3.
Claims
1. A smoke elimination device, characterized in that: The invention comprises a base (1), wherein a machine box (2) is arranged at one end of the upper end of the base (1), an air outlet (3) is provided at the top of the machine box (2), second support columns (15) are fixedly connected at the four end corners of the lower end of the machine box (2), an end of the second support column (15) away from the machine box (2) is fixedly connected to the base (1), a first water tank (6) is arranged at the other end of the upper end of the base (1), and first support columns (8) are fixedly connected at the four end corners of the lower end of the first water tank (6), The end of the first support column (8) away from the first water tank (6) is fixedly connected to the base (1); the top of the first water tank (6) is fixedly connected to a filling port (7), and the filling port (7) is connected to the first water tank (6); the middle of the lower end of the chassis (2) is fixedly connected to a drainage pipe groove (11), and the drainage pipe groove (11) is connected to the chassis (2); the lower end of the chassis (2) is provided with a second water tank (10), and the second water tank (10) is located at the lower end of the drainage pipe groove (11) and connected to the base (1). ), one end of the drainage pipe groove (11) away from the chassis (2) is fixedly connected to the second water tank (10), the drainage pipe groove (11) and the second water tank (10) are connected, one end of the second water tank (10) away from the first water tank (6) is fixedly connected to a second connecting pipe (12), the second connecting pipe (12) and the second water tank (10) are connected, a plurality of notches are provided on one side of the chassis (2), the inside of each notch is provided with a filtering mechanism (5), the inside of the chassis (2) and the position of the filter mechanism (5) are arranged A spray mechanism (13) is provided at the upper end of the filter mechanism (5); an exhaust mechanism (14) is provided inside the chassis (2) and at the upper end of the spray mechanism (13); a conveying mechanism (9) is provided at the upper end of the base (1) and at a position between the chassis (2) and the first water tank (6); a first connecting pipe (4) is fixedly connected to the outer side of the chassis (2) at an end away from the first water tank (6) and at the lower end of the filter mechanism (5); and the first connecting pipe (4) is connected to the chassis (2).
2. A smoke elimination device according to claim 1, characterized in that: The filtering mechanism (5) comprises a frame (16), a filtering net (17) is fixedly connected to the middle of the frame (16), the frame (16) is plug-connected with the notch, first fixing frames (18) are provided at both ends of the frame (16) located inside the chassis (2), one end of the first fixing frame (18) away from the frame (16) is fixedly connected to one end inside the chassis (2), a sliding groove (19) is provided at one end of the first fixing frame (18) close to the frame (16), sliders (20) are fixedly connected at both ends of the frame (16) and at positions corresponding to the sliding groove (19), the sliders (20) at the same end are plug-connected with the sliding groove (19) at the same end, a handle (37) is fixedly connected to the middle of the frame (16) located on the outer side of the chassis (2), and limiting mechanisms (21) are provided at both ends of the frame (16) located on the outer side of the chassis (2).
3. A smoke elimination device according to claim 2, characterized in that: The limiting mechanism (21) comprises a round rod (24) and an L-shaped block (22); the round rod (24) is fixedly connected to the frame (16); a buckle block (23) is rotatably connected to the outer side of the round rod (24); the L-shaped block (22) is fixedly connected to the chassis (2); and the buckle block (23) is buckled and connected to the L-shaped block (22).
4. A smoke elimination device according to claim 1, characterized in that: The spraying mechanism (13) comprises a water separation box (25), one end of which is fixedly connected to an end of the inner wall of the chassis (2) close to the conveying mechanism (9), and the other end of the water separation box (25) is fixedly connected to a plurality of water storage pipes (26), and the lower ends of the water storage pipes (26) are fixedly connected to a plurality of spray heads (27).
5. A smoke elimination device according to claim 4, characterized in that: The conveying mechanism (9) comprises a water pump (28); an end of the water pump (28) close to the second water tank (10) is fixedly connected to a second fixing frame (29); the second fixing frame (29) is fixedly connected to the second water tank (10); a water pumping end of the second fixing frame (29) is fixedly connected to a first water pipe (30); an end of the first water pipe (30) away from the water pump (28) is fixedly connected to the first water tank (6); the first water pipe (30) and the first water tank (6) are connected; a conveying end of the water pump (28) is fixedly connected to a second water pipe (31); an end of the second water pipe (31) away from the water pump (28) passes through an end of the chassis (2) and is fixedly connected to a water separation box (25) inside the chassis (2); and the second water pipe (31) and the water separation box (25) are connected.
6. A smoke elimination device according to claim 1, characterized in that: The exhaust mechanism (14) comprises a connecting column (32), the connecting column (32) being located at the middle position of the upper end inside the chassis (2), a plurality of fixing rods (33) being fixedly connected to the peripheral side of the connecting column (32), one end of the fixing rod (33) away from the connecting column (32) being fixedly connected to the inner wall of the chassis (2), a cavity (34) being fixedly connected to the middle of the upper end of the connecting column (32), a driving motor (35) being fixedly connected to the interior of the cavity (34), and a fan blade (36) being fixedly connected to the output end of the driving motor (35).