Flue inner wall anticorrosion coating spraying device

By introducing adjustment, guiding, gripping, and masking devices into the flue spraying equipment, the issues of equipment applicability and ease of use have been resolved, enabling adaptation and stable spraying for flues of various specifications.

CN224926317UActive Publication Date: 2026-11-03宁波明州热电有限公司
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Patent Information

Application Number
CN202522126320.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-09
Publication Date
2026-11-03
Estimated Expiration
2035-10-09

AI Technical Summary

Technical Problem

Existing flue spraying equipment has few adjustable settings, poor applicability, and is not easy to adjust after entering the flue, resulting in poor usability.

Method used

A flue inner wall anti-corrosion coating spraying device was designed, which includes an adjustment device, a guide device, a gripping device, and a covering device. These devices enable the device to adapt to flues of various specifications and provide stable gripping within the flue.

Benefits of technology

This improves the applicability and ease of use of flue spraying equipment, enabling it to adapt to various flue specifications and facilitate operation inside the flue.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of flue spraying equipment, in particular to a kind of flue inner wall anticorrosive coating spraying device, it is convenient to carry out adaptation to a variety of different specifications flue by setting adjusting device and guiding device, improve machine applicability, and it is convenient to hold operation to machine after machine enters flue by setting gripping device, improve machine ease of use;Including fuselage;Still including two groups of high-pressure spray head, adjusting device, four guiding devices, gripping device and covering device, two groups of high-pressure spray head and adjusting device are all installed on fuselage, four guiding devices and covering device are all installed on adjusting device, gripping device is installed on fuselage and adjusting device;Fuselage is transported to coating, high-pressure spray head is atomized and sprayed to coating, adjusting device and guiding device are tightly pressed on the inner wall of flue to machine, gripping device is convenient to adjust adjusting device and guiding device, covering device covers adjusting device.
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Description

Technical Field

[0001] This utility model relates to the technical field of flue spraying equipment, and in particular to a flue inner wall anti-corrosion coating spraying device. Background Technology

[0002] A flue is a special pipe used for exhausting smoke. In order to extend the service life of the flue, a layer of corrosion-resistant coating is usually sprayed on the inner wall of the flue.

[0003] Existing flue gas spraying equipment, such as the Chinese utility model patent CN222287689U, which describes a device for spraying coatings on the superheater of a coal-fired boiler flue gas in a power plant, represents a class of prior art. Its main structure includes a bolt with a hole and a roller. The bolt with the hole atomizes the coating and sprays it onto the inner wall of the flue gas, while the roller presses against the inner wall of the flue gas to guide the machine.

[0004] However, the existing technology and equipment still have the following problems when in use: the existing machines have fewer adjustment gears and can only be adapted to some fixed-specification flues, resulting in poor machine applicability. Furthermore, the existing machines are inconvenient to adjust the gears after entering the flue, making them difficult to use. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a flue inner wall anti-corrosion coating spraying device, which is convenient to adapt to various flues of different specifications by setting adjustment device and guide device, thereby improving the applicability of the machine, and convenient to hold and operate the machine after entering the flue by setting gripping device, thereby improving the ease of use of the machine.

[0006] This utility model discloses a flue inner wall anti-corrosion coating spraying device, including a machine body; it also includes two sets of high-pressure nozzles, an adjustment device, four guide devices, a gripping device, and a covering device. The two sets of high-pressure nozzles and the adjustment device are all mounted on the machine body, the four guide devices and the covering device are all mounted on the adjustment device, and the gripping device is mounted on the machine body and the adjustment device. The machine body transports the coating, the high-pressure nozzles atomize and spray the coating, the adjustment device and the guide device hold the machine against the inner wall of the flue, the gripping device facilitates the adjustment device and the guide device, and the covering device covers the adjustment device.

[0007] Preferably, the machine body includes a conveying pipe and a maintenance bolt. The front part of the conveying pipe has two sets of mounting holes with different orientations evenly spaced. The front end of the conveying pipe has a maintenance hole. The maintenance bolt can be detachably installed in the maintenance hole of the conveying pipe. The conveying pipe transports the paint.

[0008] Preferably, the two sets of high-pressure nozzles are respectively installed in two sets of mounting holes in the delivery pipe; the high-pressure nozzles atomize and spray the coating onto the inner wall of the flue.

[0009] Preferably, the adjustment device includes a first bracket, a second bracket, and two slip rings. The first bracket is fixedly installed in the middle of the conveying pipe, and the second bracket is rotatably installed in the middle of the conveying pipe, with the second bracket located behind the first bracket. The first bracket and the second bracket are threaded together. The two slip rings are rotatably installed on the sides of the first bracket and the second bracket, and four mounting platforms are evenly spaced on each of the two slip rings. The first bracket and the second bracket work together to drive the two slip rings to move closer or further apart, thereby adjusting the guiding device.

[0010] Preferably, the guiding device includes three pins, a third bracket, a fourth bracket, and rollers. The third bracket and the rollers are rotatably mounted on two mounting platforms of the two slip rings via two pins, and the rollers are rotatably connected to the middle of the third bracket via the remaining pin. The fourth bracket is rotatably mounted on the unconnected end of the third bracket. The four guiding devices are respectively mounted on eight mounting platforms of the two slip rings. When the two slip rings approach each other, the third bracket and the rollers cooperate to move the fourth brackets away from each other, thereby causing the fourth bracket to press against the inner wall of the flue and guide the machine.

[0011] Preferably, the gripping device includes a handwheel and multiple handles. The handwheel is installed at the rear end of the second support, and the multiple handles are all fixedly installed on the conveying pipe and located behind the handwheel. The handwheel and handles facilitate the worker to grip the machine and rotate the second support.

[0012] Preferably, the covering device includes a bracket five and a dust cover. The bracket five is fixedly installed at the rear end of the bracket one, and the dust cover is slidably installed on the bracket two and one side of the bracket, with the bracket five located inside the dust cover. The dust cover protects the bracket two during spraying to prevent the paint from contaminating the bracket two and causing it to jam. The bracket five prevents the dust cover from entering the gap between the bracket two and the bracket one when the bracket two rotates, thus preventing the bracket two from jamming.

[0013] Compared with the prior art, the advantages of this utility model are: it can be adapted to various flues of different specifications, and the machine has good applicability; and the machine can be held and operated after entering the flue, making it easy to use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model; Figure 2 This is an isometric structural diagram of the fuselage; Figure 3 This is an isometric structural diagram of the high-pressure nozzle; Figure 4 This is a schematic diagram of the isometric structure of the adjustment device; Figure 5 This is an isometric structural diagram of the guide device; Figure 6 This is an isometric structural diagram of the gripping device; Figure 7 This is an isometric structural schematic diagram of the covering device.

[0015] The attached diagram is labeled as follows: 01, machine body; 11, conveying pipe; 12, inspection bolt; 02, high-pressure nozzle; 03, adjustment device; 31, bracket one; 32, bracket two; 33, slip ring; 04, guide device; 41, pin; 42, bracket three; 43, bracket four; 44, roller; 05, gripping device; 51, handwheel; 52, handle; 06, covering device; 61, bracket five; 62, dust cover. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0017] Example 1 like Figure 1 As shown, the machine includes a body 01; it also includes two sets of high-pressure nozzles 02, an adjustment device 03, four guide devices 04, a gripping device 05, and a covering device 06. The two sets of high-pressure nozzles 02 and the adjustment device 03 are all mounted on the body 01, the four guide devices 04 and the covering device 06 are all mounted on the adjustment device 03, and the gripping device 05 is mounted on the body 01 and the adjustment device 03. The body 01 transports the paint, the high-pressure nozzles 02 atomize and spray the paint, the adjustment device 03 and the guide devices 04 press the machine against the inner wall of the flue, the gripping device 05 facilitates the adjustment device 03 and the guide devices 04, and the covering device 06 covers the adjustment device 03. like Figure 2 As shown, the machine body 01 includes a conveying pipe 11 and a maintenance bolt 12. The front part of the conveying pipe 11 is provided with two sets of mounting holes with different orientations at even intervals. The front end of the conveying pipe 11 is provided with a maintenance hole. The maintenance bolt 12 can be detachably installed in the maintenance hole of the conveying pipe 11. like Figure 3 As shown, the two sets of high-pressure nozzles 02 are respectively installed in two sets of mounting holes in the delivery pipe 11; like Figure 4 As shown, the adjustment device 03 includes a first bracket 31, a second bracket 32, and two slip rings 33. The first bracket 31 is fixedly installed in the middle of the conveying pipe 11, and the second bracket 32 ​​is rotatably installed in the middle of the conveying pipe 11. The second bracket 32 ​​is located behind the first bracket 31. The first bracket 31 and the second bracket 32 ​​are threaded together. The two slip rings 33 are rotatably installed on the sides of the first bracket 31 and the second bracket 32. Four mounting platforms are evenly spaced on each of the two slip rings 33. likeFigure 5 As shown, the guide device 04 includes three pins 41, a third bracket 42, a fourth bracket 43, and a roller 44. The third bracket 42 and the roller 44 are rotatably mounted on the two mounting platforms of the two slip rings 33 via two pins 41, and the roller 44 is rotatably connected to the middle of the third bracket 42 via the remaining pin 41. The fourth bracket 43 is rotatably mounted on the unconnected end of the third bracket 42. The four guide devices 04 are respectively mounted on the eight mounting platforms of the two slip rings 33. like Figure 6 As shown, the gripping device 05 includes a handwheel 51 and multiple handles 52. The handwheel 51 is installed at the rear end of the bracket 32, and the multiple handles 52 are all fixedly installed on the conveying pipe 11, and the multiple handles 52 are all located behind the handwheel 51. First, insert the machine into the flue. Then, rotate bracket 2 32. The handwheel 51 and handle 52 make it easy for the worker to grip and operate the machine and rotate bracket 2 32. The rotation of bracket 2 32, together with bracket 1 31, drives the two slip rings 33 to move closer or further apart. When the two slip rings 33 move closer together, bracket 3 42 and roller 44 work together to move bracket 43 further apart, so that bracket 43 presses against the inner wall of the flue and guides the machine. Then, paint is introduced into the conveying pipe 11. The conveying pipe 11 transports the paint, and the high-pressure nozzle 02 atomizes and sprays the paint onto the inner wall of the flue.

[0018] Example 2 In addition to Example 1, it also includes: like Figure 7 As shown, the covering device 06 includes a bracket 5 61 and a dust cover 62. The bracket 5 61 is fixedly installed at the rear end of the bracket 1 31, and the dust cover 62 is slidably installed on the side ends of the bracket 2 32 and the bracket 1 31, with the bracket 5 61 located inside the dust cover 62. First, insert the machine into the flue. Then, rotate bracket two 32. Handwheel 51 and handle 52 facilitate the worker's gripping and operation of the machine and rotation of bracket two 32. Bracket five 61 prevents the dust cover 62 from entering the gap between bracket two 32 and bracket one 31 when bracket two 32 rotates, thus preventing bracket two 32 from jamming. The rotation of bracket two 32, in conjunction with bracket one 31, drives the two slip rings 33 to move closer or further apart. When the two slip rings 33 move closer together, bracket three 42 and roller 44 work together to move bracket four 43 further apart, thereby pressing bracket four 43 against the inner wall of the flue and guiding the machine. Then, paint is introduced into the conveying pipe 11, which transports the paint. High-pressure nozzle 02 atomizes the paint and sprays it onto the inner wall of the flue. The dust cover 62 protects bracket two 32 during spraying to prevent the paint from contaminating bracket two 32 and causing it to jam.

[0019] like Figures 1 to 7As shown, this utility model discloses a flue inner wall anti-corrosion coating spraying device. During operation, the machine is first inserted into the flue. Then, the second support 32 is rotated. The handwheel 51 and handle 52 facilitate the worker's gripping and operation of the machine and rotation of the second support 32. The fifth support 61 prevents the dust cover 62 from entering the gap between the second support 32 and the first support 31 when the second support 32 rotates, thus preventing the second support 32 from jamming. The rotation of the second support 32, in conjunction with the first support 31, drives the two slip rings 33 to move closer or further apart. When the two slip rings 33 move closer together, the third support 42 and the roller 44 work together to move the fourth support 43 further apart, thereby pressing the fourth support 43 against the inner wall of the flue and guiding the machine. Then, the coating is introduced into the conveying pipe 11, which transports the coating. The high-pressure nozzle 02 atomizes and sprays the coating onto the inner wall of the flue. The dust cover 62 protects the second support 32 during spraying, preventing the coating from contaminating the second support 32 and causing it to jam.

[0020] The two sets of high-pressure nozzles 02 of this utility model are purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0021] The main functions achieved by this utility model are: by setting the adjustment device 03 and the guide device 04, it is convenient to adapt to various flues of different specifications, thereby improving the applicability of the machine; and by setting the gripping device 05, it is convenient to hold and operate the machine after entering the flue, thereby improving the ease of use of the machine. It solves the existing technical problems that the existing machine has fewer adjustment gears, can only adapt to some fixed flues, has poor applicability, and is inconvenient to adjust gears after entering the flue, resulting in poor ease of use.

[0022] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A device for spraying an anti-corrosion coating on the inner wall of a flue, comprising a body (01); characterized in that, It also includes two sets of high-pressure nozzles (02), an adjustment device (03), four guide devices (04), a gripping device (05), and a covering device (06). The two sets of high-pressure nozzles (02) and the adjustment device (03) are all installed on the machine body (01). The four guide devices (04) and the covering device (06) are all installed on the adjustment device (03). The gripping device (05) is installed on the machine body (01) and the adjustment device (03). The machine body (01) transports the paint, the high-pressure nozzles (02) atomize and spray the paint, the adjustment device (03) and the guide devices (04) press the machine against the inner wall of the flue, the gripping device (05) facilitates the adjustment device (03) and the guide devices (04) to be adjusted, and the covering device (06) covers the adjustment device (03).

2. The anti-corrosion coating spraying device for the inner wall of a flue as described in claim 1, characterized in that, The body (01) includes a conveying pipe (11) and a maintenance bolt (12). The front part of the conveying pipe (11) is provided with two sets of mounting holes with different orientations at even intervals. The front end of the conveying pipe (11) is provided with a maintenance hole. The maintenance bolt (12) can be detachably installed in the maintenance hole of the conveying pipe (11).

3. The anti-corrosion coating spraying device for the inner wall of a flue as described in claim 2, characterized in that, The two sets of high-pressure nozzles (02) are respectively installed in the two sets of mounting holes of the delivery pipe (11).

4. The anti-corrosion coating spraying device for the inner wall of a flue as described in claim 2, characterized in that, The adjustment device (03) includes a bracket one (31), a bracket two (32) and two slip rings (33). The bracket one (31) is fixedly installed in the middle of the conveying pipe (11), and the bracket two (32) is rotatably installed in the middle of the conveying pipe (11). The bracket two (32) is located behind the bracket one (31). The bracket one (31) and the bracket two (32) are threaded together. The two slip rings (33) are rotatably installed on the side ends of the bracket one (31) and the bracket two (32). Four mounting platforms are evenly spaced on the two slip rings (33).

5. The anti-corrosion coating spraying device for the inner wall of a flue as described in claim 4, characterized in that, The guide device (04) includes three pins (41), bracket three (42), bracket four (43) and roller (44). Bracket three (42) and roller (44) are rotatably mounted on two mounting platforms of two slip rings (33) through two pins (41), and roller (44) is rotatably connected to the middle of bracket three (42) through the remaining pin (41). Bracket four (43) is rotatably mounted on the unconnected end of bracket three (42). The four guide devices (04) are respectively mounted on eight mounting platforms of two slip rings (33).

6. The anti-corrosion coating spraying device for the inner wall of a flue as described in claim 4, characterized in that, The gripping device (05) includes a handwheel (51) and multiple handles (52). The handwheel (51) is installed at the rear end of the bracket (32), and the multiple handles (52) are all fixedly installed on the conveying pipe (11), and the multiple handles (52) are all located behind the handwheel (51).

7. The anti-corrosion coating spraying device for the inner wall of a flue as described in claim 4, characterized in that, The covering device (06) includes a bracket five (61) and a dust cover (62). The bracket five (61) is fixedly installed at the rear end of the bracket one (31), and the dust cover (62) is slidably installed on the side ends of the bracket two (32) and the bracket one (31), and the bracket five (61) is located inside the dust cover (62).

Citation Information

Patent Citations

  • Device for spraying coating on flue superheater of coal-fired boiler in power plant

    CN222287689U