A device for cleaning the interior of a pipeline of a thermal power plant

Abstract

This utility model relates to an internal cleaning device for pipelines in thermal power plants. It includes an equipment housing containing a rotatable transmission rod and a hollow shaft. A drive impeller is fixed to the outer wall of the transmission rod. A water pump is connected to the equipment housing. A water inlet is located on the side wall of the hollow shaft. Several sets of connecting telescopic pipes radiate circumferentially from the side wall of the hollow shaft extending out of the equipment housing. A cleaning brush is fixed to the outer end of each connecting telescopic pipe, and a drain hole is passed through the cleaning brush. An adjusting mounting plate is installed at the front end of the hollow shaft. A cross-shaped adjusting groove is formed on the adjusting mounting plate. A bidirectional threaded rod and an adjusting threaded rod are rotatably installed within the cross-shaped adjusting groove. Adjusting nut blocks are threadedly connected to the top and bottom of the bidirectional threaded rod and to the adjusting threaded rod. A connecting bracket is fixed to the adjusting nut block, and the connecting bracket is connected to a corresponding set of connecting telescopic pipes. This utility model can be adapted to cleaning pipelines of different sizes, is simple to operate, has a compact structure, and improves ease of use.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline cleaning, and in particular to an internal cleaning device for pipelines in thermal power plants. Background Technology

[0002] In the power plant sector, pipeline systems are a crucial component. Over time, various impurities and deposits inevitably accumulate inside the pipelines, such as iron filings, particles, dirt, and grease. If these impurities are not effectively cleaned, they can accumulate, leading to poor drainage and even blockages, severely impacting the pipeline's lifespan. Therefore, internal pipeline cleaning technology has become a key technology for ensuring energy security and extending pipeline lifespan.

[0003] Chinese utility model patent CN219368523U discloses a device for cleaning scale inside HVAC pipes, including a housing, a protective box, a partition, a handrail, a water pump, a water pipe, an impeller, a drive shaft, and a drive plate. A load-bearing plate is fixedly connected to one side of the housing, and a water pump is fixedly connected to the upper end of the load-bearing plate. A water pipe is movably connected to the water inlet end of the water pump. A protective box is movably connected to one end of the housing, and a partition is movably connected to the upper end of the protective box. A limit plate is fixedly connected to the upper end of the partition.

[0004] The patent application discloses a scale removal device for HVAC pipes. During use, an adjustable telescopic rod moves the cleaning brush to adapt to cleaning pipes of different sizes. However, due to the large number of telescopic rods, the adjustment process is overly cumbersome, causing inconvenience and reducing the device's practicality. Utility Model Content

[0005] This invention aims to address the shortcomings of existing technologies by providing a device for cleaning the internal pipes of thermal power plants.

[0006] To achieve the above objectives, this utility model adopts the following technical solution:

[0007] A cleaning device for the internal piping of a thermal power plant includes an equipment housing. A transmission rod is rotatably mounted inside the housing. A drive impeller is fixed to the outer wall of the transmission rod near the rear end of the housing. A water pump is connected to the housing at a location corresponding to the drive impeller. A hollow shaft is rotatably and sealed to the front end of the housing, and is fixedly connected to the front end of the transmission rod. An inlet is penetrating the side wall of the hollow shaft within the housing's inner cavity. Several sets of connecting telescopic pipes radiate circumferentially from the side wall of the hollow shaft extending outside the housing. The inner cavities of these connecting telescopic pipes communicate with the inner cavity of the hollow shaft. A cleaning device is fixedly connected to the outer end of each connecting telescopic pipe. The cleaning brush has a through-hole that communicates with the inner cavity of the connecting telescopic tube. An adjusting mounting plate is fixedly installed at the front end of the hollow rotating shaft. A cross-shaped adjusting groove is opened on the rear end face of the adjusting mounting plate. A bidirectional threaded rod is rotatably connected to the middle of the inner side of the cross-shaped adjusting groove, and two adjusting threaded rods are symmetrically rotatably connected to the left and right ends of the cross-shaped adjusting groove. Adjusting nut blocks are threadedly connected to the upper and lower threaded sections of the bidirectional threaded rod and the two adjusting threaded rods. A connecting bracket is fixed on the adjusting nut block. The connecting bracket is fixedly connected to the end of the corresponding set of connecting telescopic tubes away from the hollow rotating shaft.

[0008] The outer walls of the upper and lower ends of the bidirectional threaded rod are respectively provided with threads in opposite directions, and the outer walls of the two adjusting threaded rods are provided with threads in opposite directions.

[0009] A driving bevel gear is fixedly installed in the middle of the bidirectional threaded rod, and a driven bevel gear that meshes with the driving bevel gear is fixedly connected to one end of the adjusting threaded rod.

[0010] The top of the bidirectional threaded rod extends outward through a cross-shaped adjusting groove and is fixedly fitted with an adjusting handwheel.

[0011] A filter screen is fixedly installed inside the water inlet.

[0012] A protective box is installed on one side of the outer wall of the equipment enclosure.

[0013] There are four sets of connecting telescopic tubes on the outer wall of the hollow shaft, which are distributed in a ring with equal spacing. Each set of connecting telescopic tubes contains multiple tubes that are also distributed with equal spacing.

[0014] The connecting telescopic tube includes a fixed tube connected to the outer wall of the hollow rotating shaft, and a telescopic tube is movably installed inside the fixed tube. The connecting bracket is connected to the telescopic tube.

[0015] The beneficial effects of this utility model are: the cleaning brush can be easily adjusted to adapt to cleaning pipes of different sizes, the operation is simple and practical, the structure is reasonable and compact, and the convenience of using the equipment is improved. Attached Figure Description

[0016] Figure 1This is a cross-sectional view of the automatic pipe cleaning device of the present invention.

[0017] Figure 2 This is a schematic diagram of the cleaning mechanism structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the adjustment mechanism structure of the present invention;

[0019] In the diagram: 10. Equipment housing; 11. Protective box; 12. Transmission rod; 13. Drive impeller; 14. Hollow rotating shaft; 15. Connecting telescopic pipe; 16. Cleaning brush; 17. Drainage hole; 18. Water inlet; 19. Filter screen; 20. Adjustment mounting plate; 21. Cross-shaped adjustment slide; 22. Two-way threaded rod; 23. Adjusting threaded rod; 24. Adjusting nut block; 25. Connecting bracket; 26. Active steering gear; 27. Passive steering gear; 28. Adjusting handwheel;

[0020] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0021] The principles and features of this utility model are described below with reference to the accompanying drawings. The embodiments described are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0022] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0025] An internal cleaning device for pipelines in thermal power plants, such as Figure 1-3 As shown, it includes an equipment housing 10 and a protective box 11 disposed on one side of the equipment housing 10.

[0026] The equipment housing 10 is equipped with a drive assembly, which includes a transmission rod 12 that is rotatably connected to the inside of the equipment housing 10, a drive impeller 13 that is fixedly connected to one end of the transmission rod 12, and a water pump that is installed at one end of the equipment housing 10. The drive assembly is existing technology and will not be described in detail.

[0027] The front end of the equipment housing 10 is rotatably sealed with a hollow rotating shaft 14, which is fixedly connected to the front end of the transmission rod 12. A cleaning mechanism is provided at the front end of the hollow rotating shaft 14. This mechanism includes four sets of connecting telescopic pipes 15 evenly connected to the outer wall of the end of the hollow rotating shaft 14 located outside the inner cavity of the equipment housing 10, and multiple cleaning brushes 16 fixedly connected to the ends of the four sets of connecting telescopic pipes 15 away from the hollow rotating shaft 14. Each cleaning brush 16 has a drainage hole 17 that communicates with the inside of the four sets of connecting telescopic pipes 15. A water inlet 18 is provided on the side wall of the end of the hollow rotating shaft 14 located inside the inner cavity of the equipment housing 10. A filter screen 19 is fixedly installed inside the water inlet 18. The four sets of connecting telescopic pipes 15 are arranged in a ring with equal spacing. The state distribution is such that each set of connecting telescopic tubes 15 contains multiple tubes that are evenly spaced. An adjustment mounting plate 20 is fixedly installed at the front end of the hollow rotating shaft 14. A cross-shaped adjustment groove 21 is opened on the rear wall of the adjustment mounting plate 20. An adjustment mechanism is provided on the adjustment mounting plate 20 to drive the four sets of connecting telescopic tubes 15 to extend and retract. The adjustment mechanism includes a bidirectional threaded rod 22 that is rotatably connected to the middle of the inner side of the cross-shaped adjustment groove 21 and two adjustment threaded rods 23 that are symmetrically rotatably connected to the left and right ends of the cross-shaped adjustment groove 21. The outer walls of the upper and lower ends of the bidirectional threaded rod 22 and the outer walls of the two adjustment threaded rods 23 are threadedly connected to four connecting brackets 25 that are fixedly connected to the ends of the four sets of connecting telescopic tubes 15 away from the hollow rotating shaft 14.

[0028] The upper and lower ends of the bidirectional threaded rod 22 are respectively provided with threads in opposite directions on their outer walls. The outer walls of the two adjusting threaded rods 23 are also provided with threads in opposite directions. The upper and lower ends of the bidirectional threaded rod 22 and the outer walls of the two adjusting threaded rods 23 are threadedly connected to four adjusting nut blocks 24 that are slidably connected inside the cross adjusting groove 21. Four connecting brackets 25 are distributed in a ring with equal spacing and correspond to the positions of the four adjusting nut blocks 24. The front ends of the four connecting brackets 25 are fixedly connected to the rear ends of the four adjusting nut blocks 24. A driving bevel gear 26 is fixedly installed in the middle of the bidirectional threaded rod 22. Two driven bevel gears 27 that mesh with the driving bevel gear 26 are fixedly connected to the ends of the two adjusting threaded rods 23 that are close to each other. The top end of the bidirectional threaded rod 22 extends through the top inner wall of the cross adjusting groove 21 to the outside and is fixedly installed with an adjusting handwheel 28.

[0029] The working principle of this invention patent is as follows: During use, the water pump on the drive assembly introduces the cleaning agent into the equipment housing 10, impacting the drive impeller 13. This forces the drive impeller 13 to drive the hollow shaft 14 to rotate via the transmission rod 12. The hollow shaft 14, through four sets of connecting telescopic pipes 15, drives the cleaning brushes 16 on it to rotate for cleaning. Simultaneously, the cleaning agent can also enter the hollow shaft 14 through the water inlet 18, and then be discharged through the four sets of connecting telescopic pipes 15 and the drainage holes 17 on the multiple cleaning brushes 16 for rinsing. The combination of these two operations enables the equipment to clean the inside of the pipes. The rotatable adjustment handwheel 28 drives the bidirectional threaded rod 22 and its driving bevel gear 26 to rotate, forcing the two driven bevel gears 27 meshing with the driving bevel gear 26 to drive the two adjustment threaded rods 23 to rotate synchronously, forcing the bidirectional threaded rods 23 to rotate. The four adjusting nut blocks 24, connected to the two ends of the 22 and the two adjusting threaded rods 23, move closer or further apart along the inside of the cross-shaped adjusting groove 21. The four adjusting nut blocks 24 drive the four sets of connecting telescopic tubes 15 to extend and retract synchronously to a suitable length through the four connecting brackets 25, so that the cleaning brushes 16 on the four sets of connecting telescopic tubes 15 can contact the inner wall of the pipe, so as to adapt to the cleaning operation of pipes of different sizes. The above operation is simple and practical, and the structure is reasonable and compact, realizing convenient adjustment of the equipment to adapt to the cleaning operation of pipes of different sizes, improving the convenience of use of the equipment. By setting the filter screen 19, the cleaning agent passing through the inlet 18 can be filtered to prevent impurities inside the cleaning agent from entering the hollow rotating shaft 14 and clogging the hollow rotating shaft 14, connecting telescopic tubes 15 and drain hole 17, thus improving the practicality of the equipment.

[0030] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A device for cleaning the interior of pipelines in a thermal power plant, characterized in that, The equipment includes a housing (10), a transmission rod (12) is rotatably installed inside the housing (10), a drive impeller (13) is fixed on the outer wall of the transmission rod (12) near the rear end of the housing (10), a water pump is connected to the housing (10) corresponding to the drive impeller (13), a hollow shaft (14) is rotatably connected to the front end of the housing (10), the hollow shaft (14) is fixedly connected to the front end of the transmission rod (12), a water inlet (18) is penetrating the side wall of the inner cavity of the housing (10), a number of sets of connecting telescopic pipes (15) are radiating outward from the side wall of the hollow shaft (14) outside the housing (10), the inner cavity of the connecting telescopic pipe (15) is connected to the inner cavity of the hollow shaft (14), and a cleaning brush (16) is fixedly connected to the outer end of the connecting telescopic pipe (15). The cleaning brush (16) has a drainage hole (17) that is connected to the inner cavity of the connecting telescopic tube (15). The front end of the hollow rotating shaft (14) is fixedly installed with an adjustment mounting plate (20). The rear end face of the adjustment mounting plate (20) is provided with a cross adjustment groove (21). The middle of the inner side of the cross adjustment groove (21) is rotatably connected to a two-way threaded rod (22) and two adjustment threaded rods (23) are symmetrically rotatably connected to the left and right ends of the cross adjustment groove (21). The upper and lower threaded sections of the two-way threaded rod (22) and the two adjustment threaded rods (23) are all threadedly connected with adjustment nut blocks (24). The adjustment nut blocks (24) are fixedly connected with a connecting bracket (25). The connecting bracket (25) is fixedly connected to the end of the corresponding set of connecting telescopic tubes (15) away from the hollow rotating shaft (14).

2. The internal cleaning device for pipelines in thermal power plants according to claim 1, characterized in that, The upper and lower ends of the bidirectional threaded rod (22) are respectively provided with threads in opposite directions on their outer walls, and the two adjusting threaded rods (23) are provided with threads in opposite directions on their outer walls.

3. The internal cleaning device for pipelines in a thermal power plant according to claim 2, characterized in that, A drive bevel gear (26) is fixedly installed in the middle of the double-threaded rod (22), and a driven bevel gear (27) that meshes with the drive bevel gear (26) is fixedly connected to one end of the adjusting threaded rod (23).

4. The internal cleaning device for pipelines in a thermal power plant according to claim 3, characterized in that, The top of the double-threaded rod (22) extends outward through the cross-shaped adjusting groove (21) and is fixedly mounted with an adjusting handwheel (28).

5. The internal cleaning device for pipelines in a thermal power plant according to claim 4, characterized in that, A filter screen (19) is fixedly installed inside the water inlet (18).

6. The internal cleaning device for pipelines in a thermal power plant according to claim 5, characterized in that, A protective box (11) is provided on one side of the outer wall of the equipment enclosure (10).

7. The internal cleaning device for pipelines in a thermal power plant according to claim 6, characterized in that, There are four sets of connecting telescopic tubes (15) on the outer wall of the hollow rotating shaft (14) and they are distributed in a ring with equal spacing. Each set of connecting telescopic tubes (15) contains multiple tubes that are also distributed in an equal spacing.

8. The internal cleaning device for pipelines in a thermal power plant according to claim 7, characterized in that, The connecting telescopic tube (15) includes a fixed tube connected to the outer wall of the hollow rotating shaft (14), and a telescopic tube is movably provided inside the fixed tube. The connecting bracket (25) is connected to the telescopic tube.

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