Anti-corrosion coating smearing device for flue gas pipeline

Abstract

The utility model discloses an anticorrosive paint coating device for a flue gas pipeline, which comprises a cylinder body, the cylinder body is connected with three support plates through a self-centering driving mechanism, the three support plates are respectively provided with a walking mechanism, a paint conveying pipe is fixedly arranged at the center of the end face of the cylinder body in a penetrating manner, and the paint conveying pipe is connected with the cylinder body through the self-centering driving mechanism. The rear end of the coating conveying pipe is fixedly connected with a pipe joint, and the front end of the cylinder body is rotationally connected with a connecting pipe through a bearing seat; when the paint spraying device is used, paint is conveyed to the paint conveying pipe through the paint pump, the paint can be sprayed on the roller brush through the spray head, the roller brush is attached to the inner wall of the flue gas pipeline under the action of the elastic telescopic mechanism, and at the moment, the second gear motor is started to drive the U-shaped seat to rotate; the two roller brushes can rotate in the flue gas pipeline so that the inner wall of the flue gas pipeline can be evenly coated with paint, the device can move in the flue gas pipeline through the walking mechanism, coating of the whole flue gas pipeline can be achieved, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline processing, in particular to an anti-corrosion coating coating device for a flue gas pipeline. Background Art

[0002] Flue gas ducts are often threatened by high-temperature flue gas and corrosive substances in industrial production. These chemical components will react chemically with metals under high temperature, gradually corroding the inner wall of the duct, resulting in a decrease in equipment strength and stability, affecting production efficiency, and even causing safety hazards. Therefore, it is necessary to apply an anti-corrosion coating on the inner wall of the flue gas duct to improve the corrosion resistance of the duct and extend the service life of the duct.

[0003] After searching, the patent with announcement number CN220991434U discloses a pipe inner wall spraying equipment, whose hose reel drum can wind up the surplus feed hose to avoid the accumulation of feed hose in the pipe. A paint storage chamber is opened inside the hose reel drum, which can eliminate the need for an additional liquid storage tank, making the structure compact and greatly reducing the footprint. A sinker is set at the liquid inlet end of the hose in the cavity, which can always sink to the bottom when the hose reel drum rotates, ensuring a continuous supply of paint. The spraying trolley moves in the pipe, and the micro pump draws paint from the paint storage chamber through the feed hose and sprays it onto the inner wall of the pipe from the rotating nozzle.

[0004] Although the above scheme can use a trolley with a rotating nozzle installed at the front end to spray paint on the inner wall of the pipe, since the position of the rotating nozzle is fixed, when facing pipes of different diameters, the distance between the rotating nozzle and the inner wall of the pipe will change, making it difficult to ensure the uniformity of spraying on the inner wall of the pipe, which needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-corrosion coating device for a flue gas duct, so as to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The top of the discharging opening of the second end of the second end of the cylinder is fixed with a toothed connecting strip which is cooperatively connected with the toothed connecting strip of the second end.

[0008] As a further solution of the present invention: the elastic telescopic mechanism includes a plurality of guide rods fixedly mounted on the outer wall of the U-shaped frame, and the guide rods can be slidably installed on the U-shaped seat. One end of the guide rod away from the U-shaped frame is fixedly connected to a limiting block, and the outer wall of the guide rod between the U-shaped frame and the U-shaped seat is provided with a spring.

[0009] As a further solution of the present invention: the self-centering drive mechanism includes a bidirectional threaded tube rotatably installed in the cylinder, and the outer wall of the bidirectional threaded tube is symmetrically fitted with two nuts, and the outer wall of each nut is fixedly connected with three connecting plates distributed circumferentially, and the outer wall of the cylinder and the corresponding parts of each support plate are provided with open grooves, and the outer walls of the connecting plates are hinged to two connecting rods through a hinge seat, and the end of the connecting rod away from the nut passes through the open groove and is fixedly connected to the corresponding support plate, and the outer wall of the cylinder is fixedly installed with a first reduction motor for driving the bidirectional threaded tube.

[0010] As a further solution of the present invention: the walking mechanism includes a plurality of rotatable walking wheels mounted on the support plate.

[0011] As a further solution of the present invention: the walking mechanism further includes a walking motor installed on each support plate, and the output shaft of each walking motor is transmission-connected to at least one walking wheel.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] When the utility model is in use, the paint is delivered to the paint delivery pipe through the paint pump, and the paint can be sprayed onto the roller brush by the nozzle, and the roller brush will fit with the inner wall of the smoke duct under the action of the elastic telescopic mechanism. At this time, the second reduction motor is started to drive the U-shaped seat to rotate, so that the two roller brushes can rotate in the smoke duct to evenly apply the paint to the inner wall of the smoke duct. The device is moved in the smoke duct by the walking mechanism, so that the entire smoke duct can be painted, and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a structural diagram of an anti-corrosion coating device for flue gas ducts.

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0016] Figure 3 for Figure 1 A partial enlarged view of .

[0017] Among them, the cylinder 1, the two-way threaded tube 2, the nut 3, the connecting plate 4, the connecting rod 5, the open groove 6, the support plate 7, the walking wheel 8, the walking motor 9, the first reduction motor 10, the paint delivery pipe 11, the pipe joint 12, the connecting pipe 13, the second reduction motor 14, the U-shaped seat 15, the tee pipe 16, the hose 17, the nozzle 18, the guide rod 19, the spring 20, the U-shaped frame 21, the roller brush 22, the limit block 23, and the flue gas duct 24. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention will be further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0020] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation as described in the specification. Therefore, it should not be understood as a limitation on the present invention.

[0021] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0022] See also Figures 1 to 3 In an embodiment of the present utility model, an anti-corrosion coating device for a flue gas duct comprises a cylinder 1, three support plates 7 are connected to the cylinder 1 through a self-centering drive mechanism, and a walking mechanism is installed on each of the three support plates 7. A coating delivery pipe 11 is fixedly penetrated at the center of the end face of the cylinder 1, and a pipe joint 12 is fixedly connected to the rear end of the coating delivery pipe 11. The pipe joint 12 is connected to the coating pump through a pressure-resistant hose, and the front end of the cylinder 1 is rotatably connected to a connecting pipe 13 through a bearing seat. A second reduction motor 14 for driving the connecting pipe 13 is fixedly installed in the cylinder 1, and the output shaft of the second reduction motor 14 is connected to the connecting pipe 13 gear transmission, the end of the connecting pipe 13 is fixedly connected to the U-shaped seat 15, and a tee pipe 16 is fixedly installed on the inside of the U-shaped seat 15. The liquid inlet of the tee pipe 16 is connected to the front end of the paint delivery pipe 11 through a rotary joint after passing through the connecting pipe 13. The outer walls on both sides of the U-shaped seat 15 are connected to the U-shaped frame 21 through an elastic telescopic mechanism, and a roller brush 22 is rotatably installed on the inner side of the U-shaped frame 21. The two liquid outlet ends of the tee pipe 16 are connected to the nozzle 18 through a hose 17. The nozzle 18 is fixedly mounted on the corresponding U-shaped frame 21, and the nozzle of the nozzle 18 is facing the corresponding roller brush 22.

[0023] The utility model adopts the above-mentioned scheme. When in use, after the device is placed in the flue gas duct 24, the self-centering drive mechanism is started to drive each support plate 7 away from the cylinder 1 at the same time, so that the walking mechanisms on the support plates 7 are all in contact with the inner wall of the flue gas duct 24, and the cylinder 1 and the flue gas duct 24 are in a coaxial state. Thereafter, the paint is delivered to the paint delivery pipe 11 by the paint pump, so that the paint is sprayed on the roller brush 22 by the nozzle 18, and the roller brush 22 will be in contact with the inner wall of the flue gas duct 24 under the action of the elastic telescopic mechanism. At this time, the second reduction motor 14 is started to drive the U-shaped seat 15 to rotate, so that the two roller brushes 22 can be rotated in the flue gas duct 24 to evenly apply the paint to the inner wall of the flue gas duct 24. The device is moved in the flue gas duct 24 by the walking mechanism, so that the entire flue gas duct 24 can be painted, and the use effect is good.

[0024] Specific combination Figure 3In one embodiment of the present utility model, the elastic telescopic mechanism includes a plurality of guide rods 19 fixedly mounted on the outer wall of the U-shaped frame 21. The guide rods 19 can be slidably installed on the U-shaped seat 15. One end of the guide rod 19 away from the U-shaped frame 21 is fixedly connected to a limiting block 23. The outer wall of the guide rod 19 between the U-shaped frame 21 and the U-shaped seat 15 is provided with a spring 20.

[0025] By setting the spring 20 , a thrust can be applied to the U-shaped frame 21 on the U-shaped seat 15 so that the roller brush 22 can adapt to the flue gas ducts 243 of different diameters and keep the roller brush 22 close to the inner wall of the flue gas duct 24 .

[0026] Specific combination Figure 1 In one embodiment of the present utility model, the self-centering drive mechanism includes a bidirectional threaded tube 2 rotatably installed in the cylinder 1, and the outer wall of the bidirectional threaded tube 2 is symmetrically fitted with two nuts 3, and the outer wall of each nut 3 is fixedly connected with three connecting plates 4 distributed circumferentially. The outer wall of the cylinder 1 and the corresponding parts of each support plate 7 are provided with open grooves 6, and the outer walls of the connecting plates 4 are hinged to two connecting rods 5 through a hinge seat. The end of the connecting rod 5 away from the nut 3 passes through the open groove 6 and is fixedly connected to the corresponding support plate 7. The outer wall of the cylinder 1 is fixedly installed with a first reduction motor 10 for driving the bidirectional threaded tube 2, and the output shaft of the first reduction motor 10 is gear-driven with the bidirectional screw tube 2.

[0027] By starting the first reduction motor 10 to drive the bidirectional threaded tube 2 to rotate, the cooperation between the bidirectional threaded tube 2 and the nut 3 can be used to drive the two nuts 3 to move in opposite directions at the same time, so that the connecting rod 5 can be used to drive each support plate 7 to move relative to the cylinder 1 at the same time. Its structure is simple and the operation is stable.

[0028] Specific combination Figure 1 In one embodiment of the present utility model, specifically in conjunction with the walking mechanism described in the figure, it includes a plurality of rotatable walking wheels 8 mounted on the support plate 7. Furthermore, the walking mechanism also includes a walking motor 9 mounted on each support plate 7, and the output shaft of each walking motor 9 is transmission-connected to at least one of the walking wheels 8.

[0029] When the travel wheels 8 on each support plate 7 are in contact with the inner wall of the smoke duct 24 , the travel motor 9 is started to drive the device to move in the smoke duct 24 .

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for applying anti-corrosion coating to a flue gas duct, characterized by: The invention comprises a cylinder (1), three support plates (7) are connected to the cylinder (1) through a self-centering drive mechanism, and a walking mechanism is installed on each of the three support plates (7). A paint delivery pipe (11) is fixedly provided at the center of the end face of the cylinder (1), a pipe joint (12) is fixedly connected to the rear end of the paint delivery pipe (11), a front end of the cylinder (1) is rotatably connected to a connecting pipe (13) through a bearing seat, a second reduction motor (14) for driving the connecting pipe (13) is fixedly installed in the cylinder (1), and a U-shaped seat (15) is fixedly connected to the end of the connecting pipe (13). The U-shaped seat (1 5) A three-way pipe (16) is fixedly installed on the inner side, and the liquid inlet of the three-way pipe (16) is connected to the front end of the paint delivery pipe (11) through a rotary joint after passing through the connecting pipe (13). The outer walls on both sides of the U-shaped seat (15) are connected to the U-shaped frame (21) through an elastic telescopic mechanism. A roller brush (22) is rotatably installed on the inner side of the U-shaped frame (21). The two liquid outlet ends of the three-way pipe (16) are connected to the nozzle (18) through a hose (17). The nozzle (18) is fixedly installed on the corresponding U-shaped frame (21), and the nozzle of the nozzle (18) faces the corresponding roller brush (22).

2. The anti-corrosion coating coating device for flue gas pipes according to claim 1, characterized in that: The elastic telescopic mechanism comprises a plurality of guide rods (19) fixedly mounted on the outer wall of the U-shaped frame (21), each of the guide rods (19) being slidably mounted on the U-shaped seat (15), one end of the guide rod (19) away from the U-shaped frame (21) being fixedly connected to a limit block (23), and a spring (20) being sleeved on the outer wall of the guide rod (19) located between the U-shaped frame (21) and the U-shaped seat (15).

3. The anti-corrosion coating device for flue gas pipes according to claim 1, characterized in that: The self-centering drive mechanism comprises a bidirectional threaded tube (2) rotatably mounted in a cylinder (1), two nuts (3) being symmetrically fitted on the outer wall of the bidirectional threaded tube (2), three connecting plates (4) being fixedly connected to the outer wall of each nut (3) in a circumferential distribution, an opening groove (6) being provided at the corresponding positions of the outer wall of the cylinder (1) and each support plate (7), the outer wall of each connecting plate (4) being hinged to two connecting rods (5) through a hinge seat, one end of the connecting rod (5) away from the nut (3) passing through the cylinder (1) through the opening groove (6) and then being fixedly connected to the corresponding support plate (7), and a first reduction motor (10) for driving the bidirectional threaded tube (2) being fixedly mounted on the outer wall of the cylinder (1).

4. The anti-corrosion coating device for flue gas pipes according to claim 1, characterized in that: The walking mechanism comprises a plurality of walking wheels (8) rotatably mounted on a support plate (7).

5. The anti-corrosion coating device for flue gas pipes according to claim 4, characterized in that: The walking mechanism further comprises a walking motor (9) mounted on each support plate (7), and the output shaft of each walking motor (9) is in transmission connection with at least one walking wheel (8).

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