Power plant induced draft fan blade cleaning device

Abstract

The power plant induced draft fan blade cleaning device comprises a cleaning box, a liquid supply mechanism and a driving mechanism, a cleaning barrel is arranged in the cleaning box, through holes are formed in the surface and the bottom of the cleaning barrel, a brush roller is vertically arranged in the middle of the interior of the cleaning barrel, and an annular pipe is arranged on the edge of the top in the cleaning box; the bottom of the annular pipe vertically communicates with a vertical pipe, a high-pressure spray head is installed on the inner side of the vertical pipe, the liquid supply mechanism is used for providing cleaning liquid for the annular pipe, and the driving mechanism is used for driving the cleaning barrel and the brush roller to rotate in the opposite directions. According to the cleaning device, all-directional high-pressure washing can be conducted on induced draft fan blades in the cleaning cylinder, brushing is conducted in cooperation with the brush rollers rotating continuously, the two cleaning modes of high-pressure washing and brushing are combined together, the cleaning modes are more diversified, and the cleaning efficiency and the cleaning effect are improved.

Description

Technical Field

[0001] The invention relates to the technical field of blade cleaning, and in particular to a blade cleaning device for an induced draft fan in a power plant. Background Art

[0002] An induced draft fan is a mechanical device used for ventilation, exhaust and gas transportation, and is widely used in industries, construction, environmental protection and other fields. An induced draft fan generates airflow through a rotating impeller, extracting air or other gases from one area and transporting them to another area. Its basic working principle is to convert kinetic energy into the pressure energy of the gas. The induced draft fan in a power plant is mainly used for smoke and waste gas treatment, combustion promotion, ventilation and cooling, etc. After working for a long time, the blades of the induced draft fan will adhere to a lot of dust and impurities on their surface, and they need to be disassembled for cleaning.

[0003] However, the existing power plant induced draft fan blade cleaning device only uses a single cleaning method for cleaning, such as high-pressure washing or immersion washing, and the cleaning efficiency is low and the cleaning effect needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a device for cleaning blades of an induced draft fan in a power plant.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A device for cleaning blades of an induced draft fan in a power plant, comprising: a cleaning box, a cleaning cylinder is arranged inside the cleaning box, through holes are opened on the surface and bottom of the cleaning cylinder, a brush roller is vertically arranged in the middle of the cleaning cylinder, an annular tube is arranged at the edge of the top of the cleaning box, a vertical tube is vertically connected to the bottom of the annular tube, and a high-pressure nozzle is installed inside the vertical tube;

[0007] A liquid supply mechanism, the liquid supply mechanism is used to supply cleaning liquid to the annular tube;

[0008] The driving mechanism is used to drive the cleaning cylinder and the brush roller to rotate in opposite directions.

[0009] As a further technical solution of the present invention, the tops of the cleaning box and the cleaning cylinder are both open structures, a controller is fixedly installed on one side of the outside of the cleaning box, and a sewage pipe is horizontally connected to the bottom of the outside of the cleaning box, and a valve is installed on the sewage pipe.

[0010] As a further technical solution of the present invention, the through holes are provided in plurality and are evenly distributed on the surface and bottom of the cleaning cylinder, the vertical pipes are provided in plurality and are evenly distributed along the circumference at the bottom of the annular pipe, and the high-pressure nozzles are provided in plurality and are evenly distributed vertically on the inner side of the vertical pipe.

[0011] As a further technical solution of the present invention, the liquid supply mechanism includes a liquid pump, which is installed on the top of one side of the outside of the cleaning box. The liquid inlet and the disposal port of the liquid pump are respectively connected to a liquid suction pipe and a liquid outlet pipe. The liquid outlet pipe runs through one side of the cleaning box and is connected to the annular pipe.

[0012] During cleaning, the liquid extraction pump is started to extract the cleaning liquid through the liquid extraction pipe and distribute it to multiple vertical pipes through the liquid outlet pipe and the annular pipe. Then, multiple high-pressure nozzles evenly spray the cleaning liquid onto the induced draft fan blades in the cleaning cylinder to perform high-pressure washing.

[0013] As a further technical solution of the present invention, the driving mechanism includes a rotating motor, which is installed at the bottom of one side outside the cleaning box, and a driving shaft is fixedly installed horizontally on the output end of the rotating motor, the driving shaft passes through one side of the cleaning box and is rotatably connected to the cleaning box, a driving bevel gear is welded to the other end of the driving shaft, a driven shaft is vertically welded to the bottom of the brush roller, the driven shaft passes through the cleaning cylinder and is rotatably connected to the cleaning cylinder, the bottom end of the driven shaft is rotatably connected to the bottom of the cleaning box, a sleeve shaft is sleeved on the outer periphery of the driven shaft and is rotatably connected to the sleeve shaft, the top end of the sleeve shaft is welded to the bottom of the cleaning cylinder, a first driven bevel gear is welded on the sleeve shaft, a second driven bevel gear is welded on the driven shaft, the first driven bevel gear and the second driven bevel gear are symmetrically arranged, and the first driven bevel gear and the second driven bevel gear are both meshed with the driving bevel gear.

[0014] At the same time, the rotating motor is started to drive the driving shaft to rotate, the driving shaft drives the driving bevel gear to rotate, the driving bevel gear drives the sleeve shaft and the driven shaft to rotate in opposite directions through the first driven bevel gear and the second driven bevel gear, the sleeve shaft and the driven shaft respectively drive the cleaning cylinder and the brush roller to rotate in opposite directions, not only can the induced draft fan blades in the cleaning cylinder be fully high-pressure washed, but also the continuously rotating brush roller is used for brushing, the two cleaning methods of high-pressure washing and brushing are combined together, the cleaning methods are more diverse, and the cleaning efficiency and cleaning effect are improved.

[0015] As a further technical solution of the present invention, a fixed block is welded above the inner wall of one side of the cleaning box, the annular tube passes through the fixed block and is fixedly connected to the fixed block, an L-shaped support plate is welded to the bottom of the cleaning box, and the sleeve shaft passes through the L-shaped support plate and is rotatably connected to the L-shaped support plate.

[0016] As a further technical solution of the present invention, a first mounting seat is welded to the bottom of one side of the outside of the cleaning box, the rotating motor is horizontally fixedly installed on the top of the first mounting seat, a second mounting seat is welded to the top of one side of the outside of the cleaning box, and the liquid pump is fixedly installed on the top of the second mounting seat.

[0017] The beneficial effects of the present invention are: not only can the induced draft fan blades in the cleaning cylinder be fully high-pressure washed, but also the continuously rotating brush roller can be used for brushing, thereby combining the two cleaning methods of high-pressure washing and brushing together, making the cleaning methods more diverse and improving the cleaning efficiency and cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a power plant induced draft fan blade cleaning device proposed by the present invention;

[0019] Figure 2 This is a side structural schematic diagram of a power plant induced draft fan blade cleaning device proposed by the present invention;

[0020] Figure 3 This is a schematic cross-sectional view of a power plant induced draft fan blade cleaning device proposed by the present invention;

[0021] Figure 4 A schematic diagram of the partial structure of a power plant induced draft fan blade cleaning device proposed by the present invention Figure 1 ;

[0022] Figure 5 A schematic diagram of the partial structure of a power plant induced draft fan blade cleaning device proposed by the present invention Figure 2 .

[0023] In the figure: 1. controller; 2. through hole; 3. annular tube; 4. brush roller; 5. cleaning cylinder; 6. cleaning box; 7. rotating motor; 8. first mounting seat; 9. liquid outlet pipe; 10. liquid pump; 11. liquid pump; 12. second mounting seat; 13. drain pipe; 14. valve; 15. fixing block; 16. L-shaped support plate; 17. driving bevel gear; 18. driving shaft; 19. vertical pipe; 20. high-pressure nozzle; 21. sleeve shaft; 22. first driven bevel gear; 23. second driven bevel gear; 24. driven shaft. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0025] Please see attached Figure 1 -Attached Figure 5 A device for cleaning blades of an induced draft fan in a power plant comprises: a cleaning box 6, a cleaning cylinder 5 is arranged inside the cleaning box 6, through holes 2 are opened on the surface and bottom of the cleaning cylinder 5, a brush roller 4 is vertically arranged in the middle of the cleaning cylinder 5, an annular tube 3 is arranged at the edge of the top of the cleaning box 6, a vertical pipe 19 is vertically connected to the bottom of the annular tube 3, and a high-pressure nozzle 20 is installed inside the vertical pipe 19;

[0026] A liquid supply mechanism, which is used to supply cleaning liquid to the annular tube 3;

[0027] The driving mechanism is used to drive the cleaning cylinder 5 and the brush roller 4 to rotate in opposite directions.

[0028] Please see attached Figure 1-2 In a preferred embodiment, the tops of the cleaning box 6 and the cleaning cylinder 5 are both open structures, a controller 1 is fixedly installed on one side of the outside of the cleaning box 6, and a sewage pipe 13 is horizontally connected to the bottom of the outside of the cleaning box 6, and a valve 14 is installed on the sewage pipe 13.

[0029] The controller 1 controls the operation of the electrical equipment, and opens the valve 14 to discharge the sewage from the sewage pipe 13 during the cleaning process.

[0030] Please see attached Figure 1-4 In a preferred embodiment, a plurality of through holes 2 are provided and are evenly distributed on the surface and bottom of the cleaning cylinder 5, a plurality of vertical pipes 19 are provided and are evenly distributed along the circumference at the bottom of the annular pipe 3, and a plurality of high-pressure nozzles 20 are provided and are evenly distributed vertically on the inner side of the vertical pipe 19.

[0031] Please see attached Figure 2 In a preferred embodiment, the liquid supply mechanism includes a liquid pump 10, which is installed at the top of one side of the outside of the cleaning tank 6. The liquid inlet and the disposal port of the liquid pump 10 are respectively connected to a liquid suction pipe 11 and a liquid outlet pipe 9. The liquid outlet pipe 9 passes through one side of the cleaning tank 6 and is connected to the annular pipe 3.

[0032] During cleaning, the liquid pump 10 is started to extract cleaning liquid through the liquid extraction pipe 11 and distribute it to multiple vertical pipes 19 through the liquid outlet pipe 9 and the annular pipe 3. Then, multiple high-pressure nozzles 20 evenly spray it to the induced draft fan blades in the cleaning cylinder 5 to perform high-pressure cleaning on them.

[0033] Please see attached Figure 3 and 5 In a preferred embodiment, the driving mechanism includes a rotary motor 7, which is installed at the bottom of one side outside the cleaning box 6. A driving shaft 18 is fixedly installed horizontally at the output end of the rotary motor 7. The driving shaft 18 passes through one side of the cleaning box 6 and is rotatably connected to the cleaning box 6.

[0034] Please see attached Figure 3 and 5 A driving bevel gear 17 is welded to the other end of the driving shaft 18, and a driven shaft 24 is vertically welded to the bottom of the brush roller 4. The driven shaft 24 passes through the cleaning cylinder 5 and is rotatably connected to the cleaning cylinder 5. The bottom end of the driven shaft 24 is rotatably connected to the bottom of the cleaning box 6.

[0035] Please see attached Figure 3 and 5The outer periphery of the driven shaft 24 is sleeved with the sleeve shaft 21 and is rotatably connected to the sleeve shaft 21 . The top of the sleeve shaft 21 is welded to the bottom of the cleaning cylinder 5 . The first driven bevel gear 22 is welded to the sleeve shaft 21 , and the second driven bevel gear 23 is welded to the driven shaft 24 .

[0036] Please see attached Figure 3 and 5 The first driven bevel gear 22 and the second driven bevel gear 23 are symmetrically arranged, and both the first driven bevel gear 22 and the second driven bevel gear 23 are meshed with the driving bevel gear 17 .

[0037] At the same time, the rotating motor 7 is started to drive the driving shaft 18 to rotate, and the driving shaft 18 drives the driving bevel gear 17 to rotate. The driving bevel gear 17 drives the sleeve shaft 21 and the driven shaft 24 to rotate in opposite directions through the first driven bevel gear 22 and the second driven bevel gear 23. The sleeve shaft 21 and the driven shaft 24 respectively drive the cleaning cylinder 5 and the brush roller 4 to rotate in opposite directions, which can not only perform all-round high-pressure washing of the induced draft fan blades in the cleaning cylinder 5, but also cooperate with the continuously rotating brush roller 4 to brush and wash, combining the two cleaning methods of high-pressure washing and brushing together, making the cleaning method more diverse and improving the cleaning efficiency and cleaning effect.

[0038] Please see attached Figure 2 and 3 A fixed block 15 is welded on the upper inner wall of one side of the cleaning box 6, the annular tube 3 passes through the fixed block 15 and is fixedly connected to the fixed block 15, an L-shaped support plate 16 is welded on the bottom of the cleaning box 6, and the sleeve shaft 21 passes through the L-shaped support plate 16 and is rotatably connected to the L-shaped support plate 16.

[0039] The fixing block 15 provides support for the annular tube 3 , and the L-shaped support plate 16 provides support for the sleeve shaft 21 .

[0040] Please see attached Figure 1 and 2 A first mounting seat 8 is welded to the bottom of one side of the outside of the cleaning box 6, and the rotating motor 7 is horizontally fixedly installed on the top of the first mounting seat 8. A second mounting seat 12 is welded to the top of one side of the outside of the cleaning box 6, and the liquid pump 10 is fixedly installed on the top of the second mounting seat 12.

[0041] The first mounting seat 8 provides support for the rotating motor 7 , and the second mounting seat 12 provides support for the liquid pump 10 .

[0042] From the above description, it can be seen that the above embodiment of the present invention achieves the following technical effects: when cleaning, the liquid pump 10 is started to use the liquid suction pipe 11 to extract the cleaning liquid through the liquid outlet pipe 9 and the annular pipe 3 to distribute it to multiple vertical pipes 19, and then multiple high-pressure nozzles 20 are used to evenly spray the induced draft fan blades in the cleaning cylinder 5 to perform high-pressure cleaning;

[0043] At the same time, the rotating motor 7 is started to drive the driving shaft 18 to rotate, and the driving shaft 18 drives the driving bevel gear 17 to rotate. The driving bevel gear 17 drives the sleeve shaft 21 and the driven shaft 24 to rotate in opposite directions through the first driven bevel gear 22 and the second driven bevel gear 23. The sleeve shaft 21 and the driven shaft 24 respectively drive the cleaning cylinder 5 and the brush roller 4 to rotate in opposite directions, which can not only perform all-round high-pressure washing of the induced draft fan blades in the cleaning cylinder 5, but also cooperate with the continuously rotating brush roller 4 to brush and wash, combining the two cleaning methods of high-pressure washing and brushing together, making the cleaning method more diverse and improving the cleaning efficiency and cleaning effect.

[0044] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0045] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for cleaning blades of induced draft fans in power plants, characterized in that: include: A cleaning box (6), wherein a cleaning cylinder (5) is provided inside the cleaning box (6), through holes (2) are provided on the surface and bottom of the cleaning cylinder (5), a brush roller (4) is vertically provided in the middle of the cleaning cylinder (5), an annular tube (3) is provided at the edge of the top of the cleaning box (6), a vertical tube (19) is vertically connected to the bottom of the annular tube (3), and a high-pressure nozzle (20) is installed inside the vertical tube (19); A liquid supply mechanism, the liquid supply mechanism being used to supply cleaning liquid to the annular tube (3); A driving mechanism is used to drive the cleaning cylinder (5) and the brush roller (4) to rotate in opposite directions.

2. The device for cleaning blades of induced draft fans in power plants according to claim 1, characterized in that: The tops of the cleaning box (6) and the cleaning cylinder (5) are both open structures, a controller (1) is fixedly installed on one side of the outside of the cleaning box (6), and a sewage pipe (13) is horizontally connected to the bottom of one side of the outside of the cleaning box (6), and a valve (14) is installed on the sewage pipe (13).

3. The device for cleaning blades of induced draft fans in power plants according to claim 1, characterized in that: The through holes (2) are provided in plurality and are evenly distributed on the surface and bottom of the cleaning cylinder (5); the vertical pipes (19) are provided in plurality and are evenly distributed along the circumference of the bottom of the annular pipe (3); and the high-pressure nozzles (20) are provided in plurality and are evenly distributed vertically on the inner side of the vertical pipe (19).

4. The device for cleaning blades of induced draft fans in power plants according to claim 1, characterized in that: The liquid supply mechanism comprises a liquid pump (10), the liquid pump (10) being mounted on the top of one side of the outside of the cleaning box (6), the liquid inlet and the liquid outlet of the liquid pump (10) being respectively connected to a liquid pumping pipe (11) and a liquid outlet pipe (9), the liquid outlet pipe (9) passing through one side of the cleaning box (6) and being connected to the annular pipe (3).

5. The device for cleaning blades of induced draft fans in power plants according to claim 4, characterized in that: The driving mechanism comprises a rotating motor (7), the rotating motor (7) being mounted on the bottom of one side outside the cleaning box (6), a driving shaft (18) being fixedly mounted horizontally on the output end of the rotating motor (7), the driving shaft (18) penetrating one side of the cleaning box (6) and being rotatably connected to the cleaning box (6).

6. The device for cleaning blades of induced draft fans in power plants according to claim 5, characterized in that: A driving bevel gear (17) is welded to the other end of the driving shaft (18), and a driven shaft (24) is vertically welded to the bottom of the brush roller (4). The driven shaft (24) passes through the cleaning cylinder (5) and is rotatably connected to the cleaning cylinder (5). The bottom end of the driven shaft (24) is rotatably connected to the bottom of the cleaning box (6).

7. The device for cleaning blades of induced draft fans in power plants according to claim 6, characterized in that: The driven shaft (24) is sleeved with a sleeve shaft (21) on its outer periphery and is rotatably connected to the sleeve shaft (21); the top end of the sleeve shaft (21) is welded to the bottom of the cleaning cylinder (5); a first driven bevel gear (22) is welded to the sleeve shaft (21); and a second driven bevel gear (23) is welded to the driven shaft (24).

8. The device for cleaning blades of induced draft fans in power plants according to claim 7, characterized in that: The first driven bevel gear (22) and the second driven bevel gear (23) are symmetrically arranged, and both the first driven bevel gear (22) and the second driven bevel gear (23) are meshed with the driving bevel gear (17).

9. The device for cleaning blades of induced draft fans in power plants according to claim 8, characterized in that: A fixing block (15) is welded above the inner wall of one side of the cleaning box (6); the annular tube (3) passes through the fixing block (15) and is fixedly connected to the fixing block (15); an L-shaped support plate (16) is welded to the bottom of the cleaning box (6); the sleeve shaft (21) passes through the L-shaped support plate (16) and is rotatably connected to the L-shaped support plate (16).

10. The power plant induced draft fan blade cleaning device according to claim 9, characterized in that: A first mounting seat (8) is welded to the bottom of one side of the outside of the cleaning box (6), the rotating motor (7) is horizontally fixedly mounted on the top of the first mounting seat (8), a second mounting seat (12) is welded to the top of one side of the outside of the cleaning box (6), and the liquid pump (10) is fixedly mounted on the top of the second mounting seat (12).

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