Power plant boiler ash cleaning device

Abstract

The utility model relates to the field of ash cleaning equipment, and discloses a power plant boiler ash cleaning device which comprises a mounting pipe inserted into a boiler body and further comprises walking mechanisms arranged on the end face of the outer circle of the mounting pipe at equal angles and connected with the inner wall of the boiler body in an abutting mode. The walking mechanism is used for driving the mounting pipe to walk in the boiler body; the adjusting mechanism is arranged on the mounting pipe, connected with the walking mechanism and used for adjusting the distance between the walking mechanism and the mounting pipe; the cleaning mechanism is arranged on one side of the mounting pipe, abuts against the inner wall of the boiler body and is used for cleaning the inner wall of the boiler body, manual operation in the boiler is not needed, the cleaning efficiency is greatly improved, meanwhile, manual operation in a severe environment is avoided, and the safety of operators is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of ash removal equipment technology, specifically a boiler ash cleaning device for power plants. Background Technology

[0002] During the operation of power plant boilers, furnace ash gradually accumulates on the inner wall of the boiler. This ash buildup not only affects the boiler's heat transfer efficiency, leading to energy waste and reducing overall operating efficiency, but also can cause corrosion to the boiler's inner wall over time, shortening its service life and even posing safety hazards.

[0003] The existing equipment has the following drawbacks: Currently, the cleaning of boiler ash mostly relies on manual operation, which has many disadvantages. On the one hand, manual cleaning is labor-intensive, and the working environment is harsh, with high temperatures and dust posing a threat to the health of operators. On the other hand, manual cleaning cannot guarantee a comprehensive and thorough cleaning of the boiler's inner wall, the cleaning effect is unstable, and the cleaning efficiency is low, which cannot meet the needs of high-efficiency operation of power plant boilers.

[0004] Therefore, this application proposes a power plant boiler ash cleaning device to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a power plant boiler ash cleaning device to solve the problems of high labor intensity, harsh working environment, and threats to the health of operators caused by high temperature and dust conditions in manual cleaning; on the other hand, manual cleaning is difficult to guarantee a comprehensive and thorough cleaning of the boiler inner wall, the cleaning effect is unstable, and the cleaning efficiency is low, which cannot meet the needs of high-efficiency operation of power plant boilers.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a power plant boiler ash cleaning device, comprising an installation pipe inserted into the boiler furnace body, and further comprising:

[0007] The traveling mechanism is set at equal angles on the outer circular end face of the mounting pipe and abuts against the inner wall of the boiler body, and is used to drive the mounting pipe to travel inside the boiler body.

[0008] An adjustment mechanism, disposed on the mounting pipe and connected to the traveling mechanism, is used to adjust the distance between the traveling mechanism and the mounting pipe;

[0009] A cleaning mechanism is installed on one side of the installation pipe and abuts against the inner wall of the boiler body, and is used to clean the inner wall of the boiler body.

[0010] The cleaning mechanism includes a second motor disposed inside the mounting tube, a rotating shaft disposed at the power output end of the second motor, a rotating disk disposed on the side of the rotating shaft away from the mounting tube, and a cleaning component disposed at equal angles on the rotating disk. The mounting tube has a mounting groove for placing the second motor, and the rotating disk has a mounting ring for mounting the cleaning component.

[0011] The cleaning component includes a telescopic rod passing through the mounting ring and a scraper disposed on the side of the telescopic rod away from the mounting ring. The rotating disk has a placement groove at the position corresponding to the telescopic rod for the telescopic rod to move.

[0012] The portion of the rotating disk located between the placement slot and the telescopic rod is provided with an elastic element.

[0013] The scraper has a guide rod that passes through the mounting ring on the side near the mounting ring, and a limit block is provided on the side of the guide rod away from the scraper.

[0014] The mounting tube has side plates at equal angles on its outer circular end face for mounting the walking mechanism and the adjusting mechanism.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention achieves automated cleaning of boiler ash by setting up a walking mechanism, an adjustment mechanism, and a cleaning mechanism. The device can automatically move inside the boiler body and complete the cleaning work without the need for manual entry into the boiler, which greatly improves the cleaning efficiency and avoids manual operation in harsh environments, thus ensuring the safety of operators. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure in one embodiment of the present invention;

[0018] Figure 2 This is a top view of the structure in one embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure in cross-section AA;

[0020] Figure 4 This is a schematic diagram of the cleaning device in one embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the connection between the adjustment mechanism and the walking mechanism in one embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the walking mechanism in one embodiment of the present invention;

[0023] Figure 7 for Figure 4 Enlarged structural diagram of section A in the middle.

[0024] In the diagram: 1. Boiler body; 2. Mounting pipe; 201. Mounting groove; 21. Side plate; 2101. Slide groove; 3. Traveling mechanism; 31. Support frame; 32. First motor; 33. Gear; 34. Gear belt; 35. Support roller; 36. Guide roller; 4. Adjusting mechanism; 41. Power component; 42. Moving block; 43. Push rod; 44. Support rod; 5. Cleaning mechanism; 51. Second motor; 52. Rotating shaft; 53. Rotating disk; 5301. Placement groove; 531. Mounting ring; 54. Cleaning component; 541. Telescopic rod; 542. Scraper; 543. Guide rod; 544. Elastic component; 545. Limiting block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-7 This utility model provides a technical solution: a power plant boiler ash cleaning device, including an installation pipe 2 inserted into the boiler body 1, and further including:

[0027] The traveling mechanism 3 is set at equal angles on the outer circular end face of the mounting pipe 2 and abuts against the inner wall of the boiler body 1, and is used to drive the mounting pipe 2 to travel inside the boiler body 1.

[0028] Adjustment mechanism 4 is installed on mounting pipe 2 and connected to walking mechanism 3, and is used to adjust the distance between walking mechanism 3 and mounting pipe 2;

[0029] The cleaning mechanism 5 is located on one side of the installation pipe 2 and abuts against the inner wall of the boiler body 1, and is used to clean the inner wall of the boiler body 1.

[0030] It should be noted that during operation, the installation pipe 2 is inserted into the boiler body 1, and then the traveling mechanism 3 is moved by the adjusting mechanism 4 so that the traveling mechanism 3 comes into contact with the inner wall of the boiler body 1. Then, the cleaning mechanism 5 is opened, and the cleaning mechanism 5 cleans the inner wall of the boiler body 1. While the cleaning mechanism 5 is cleaning the inner wall of the boiler body, the traveling mechanism 3 is opened, and the cleaning mechanism 5 moves inside the boiler body 1. During the cleaning process of the cleaning mechanism 5, the traveling mechanism 3 can drive the cleaning mechanism 5 to gradually move down, and thoroughly clean the surface of the boiler body 1. By setting up the traveling mechanism 3, the adjusting mechanism 4 and the cleaning mechanism 5, the automatic cleaning of boiler ash is realized. The device can automatically move inside the boiler body 1 and complete the cleaning work without the need for manual entry into the boiler, which greatly improves the cleaning efficiency and avoids manual operation in harsh environments, ensuring the safety of operators.

[0031] In one embodiment, the cleaning mechanism 5 includes a second motor 51 disposed inside the mounting tube 2, a rotating shaft 52 disposed at the power output end of the second motor 51, a rotating disk 53 disposed on the side of the rotating shaft 52 away from the mounting tube 2, and a cleaning component 54 disposed at equal angles on the rotating disk 53. The mounting tube 2 is provided with a mounting groove 201 for placing the second motor 51, and the rotating disk 53 is provided with a mounting ring 531 for mounting the cleaning component 54.

[0032] This design is for reference. Figure 3 The power of the second motor 51 is directly output to the rotating shaft 52, which in turn drives the rotating disk 53 to rotate, thereby driving the cleaning parts 54, which are set at equal angles on the rotating disk 53, to make circular motion. The cleaning parts 54 can more effectively scrape off the furnace ash under high-speed rotation, greatly shortening the cleaning time.

[0033] In one embodiment, the cleaning component 54 includes a telescopic rod 541 passing through the mounting ring 531 and a scraper 542 disposed on the side of the telescopic rod 541 away from the mounting ring 531. The rotating disk 53 is provided with a placement groove 5301 for the telescopic rod 541 to move at the corresponding position of the telescopic rod 541.

[0034] This design is for reference. Figure 4 ,as well as Figure 7The telescopic rod 541 allows the scraper 542 to adjust its extension and retraction according to the actual condition of the inner wall of the boiler body 1. During long-term use, the inner wall of the boiler body 1 may experience varying degrees of wear, deformation, or uneven ash accumulation. When encountering thick ash accumulation or protruding parts on the inner wall, the telescopic rod 541 can extend, bringing the scraper 542 closer to the inner wall of the boiler body, increasing the scraping force, and ensuring that the ash is thoroughly cleaned. In areas with less ash accumulation or a relatively flat inner wall, the telescopic rod 541 can retract appropriately to avoid excessive friction between the scraper 542 and the inner wall of the boiler body, reducing damage to the inner wall. This adaptive adjustment capability greatly improves the adaptability of the cleaning component 54 to different inner wall conditions of the boiler body, thereby enhancing the cleaning effect.

[0035] In one embodiment, the portion of the rotating disk 53 located between the placement groove 5301 and the telescopic rod 541 is provided with an elastic element 544, which is made of a damped spring or an elastic pad.

[0036] This design is for reference. Figure 7 The inner wall of the boiler body 1 may be uneven, such as local protrusions or depressions. The elastic element 544 allows the telescopic rod 541 to adaptively adjust according to the actual shape of the inner wall of the boiler body. When the scraper 542 encounters a protrusion, the elastic element 544 is compressed and the telescopic rod 541 retracts, avoiding excessive pressure between the scraper 542 and the protrusion and damage. When it encounters a depression, the elastic element 544 releases its elastic potential energy, pushing the telescopic rod 541 to extend, so that the scraper 542 can better fit the depression and clean the furnace ash. This automatic compensation fit function greatly improves the cleaning effect of the cleaning element 54 on the inner wall of the boiler body with different shapes.

[0037] In one embodiment, a guide rod 543 passing through the mounting ring 531 is provided on the side of the scraper 542 near the mounting ring 531, and a limit block 545 is provided on the side of the guide rod 543 away from the scraper 542.

[0038] This design is for reference. Figure 7 The guide rod 543 passes through the mounting ring 531, providing precise guidance for the movement of the scraper 542. During the rotation of the cleaning component 54 driven by the rotating disk 53, the guide rod 543 ensures that the scraper 542 always moves along the predetermined trajectory, preventing the scraper 542 from deviating or shaking. This helps to ensure the accuracy and consistency of the cleaning work, enabling the scraper 542 to accurately scrape the ash from the inner wall of the boiler body 1 and improve the cleaning effect. The limiting block 545 is set on the side of the guide rod 543 away from the scraper 542. When the telescopic rod 541 extends or retracts under the action of the elastic element 544, the limiting block 545 can prevent the guide rod 543 from moving excessively, thereby preventing the scraper 542 from exceeding the normal working range.

[0039] In one embodiment, side plates 21 for mounting the walking mechanism 3 and the adjusting mechanism 4 are provided at equal angles on the outer circular end face of the mounting tube 2.

[0040] This design is for reference. Figure 4 ,as well as Figure 5 The side plates 21 are set at equal angles so that the walking mechanism 3 and the adjusting mechanism 4 are evenly distributed on the mounting tube 2. This even distribution method can evenly distribute the load generated by the device during operation to various parts of the mounting tube 2. The side plates 21 make full use of the space of the outer end face of the mounting tube 2, making the installation of the walking mechanism 3 and the adjusting mechanism 4 more compact.

[0041] In a specific embodiment, the adjustment mechanism 4 includes a power component 41 disposed on the side plate 21, a moving block 42 disposed on the power output end of the power component 41, a push rod 43 disposed on the moving block 42, and a support rod 44 disposed between the walking mechanism 3 and the side plate 21. The side of the push rod 43 away from the moving block 42 is connected to the walking mechanism 3. A slide groove 2101 for the moving block 42 to move is provided on the side plate 21. The power component 41 includes, but is not limited to, a hydraulic cylinder, a linear guide rail, an electric push rod, and a pneumatic cylinder.

[0042] The walking mechanism 3 includes a support frame 31 disposed on the side away from the side plate 21 of the push rod 43 and the support rod 44, a first motor 32 disposed on the support frame 31, a gear 33 disposed at the power output end of the first motor 32, a gear belt 34 sleeved on the gear 33, a guide roller 36 disposed inside the support frame 31 for guiding the gear belt 34, and a support roller 35 disposed inside the support frame 31 for supporting the gear belt 34. The gear 33 and the gear belt 34 are meshed together.

[0043] This design is for reference. Figure 1-6 The power component 41 drives the moving block 42 to move within the slide 2101, and the push rod 43 drives the walking mechanism 3 to adjust its position. This allows the distance between the walking mechanism 3 and the inner wall of the boiler body 1 to be flexibly changed according to the actual shape and size of the inner wall of the boiler body 1, ensuring that the device can adapt to boiler bodies 1 of different specifications, thus improving the versatility and adaptability of the device. The movement of the moving block 42 within the slide 2101 has clear guidance, ensuring the stability and accuracy of the adjustment process, and preventing the walking mechanism 3 from shaking or deviating during the adjustment process, which helps to improve the precision of the cleaning work. The support rod 44 is set between the walking mechanism 3 and the side plate 21, providing additional support for the walking mechanism 3, enhancing the stability of the walking mechanism 3 during the adjustment process, and preventing it from deforming or being damaged due to uneven force.

[0044] The first motor 32 drives the gear 33 to rotate. The gear 33 meshes with the gear belt 34, causing the gear belt 34 to move inside the boiler body 1. The guide roller 36 and support roller 35 set inside the support frame 31 provide good guidance and support for the gear belt 34. The guide roller 36 can ensure that the gear belt 34 always maintains the correct running trajectory during the transmission process, avoiding deviation or slippage, and improving the accuracy and stability of the transmission.

[0045] Furthermore, if the embodiments involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relation to the specification. The significance or implied number of the indicated technical features is not specified. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

Claims

1. A power plant boiler ash cleaning device, comprising an installation pipe (2) inserted into the boiler body (1), characterized in that, Also includes: The walking mechanism (3) is set at equal angles on the outer circular end face of the mounting pipe (2) and abuts against the inner wall of the boiler body (1), and is used to drive the mounting pipe (2) to walk inside the boiler body (1); An adjustment mechanism (4) is provided on the mounting pipe (2) and connected to the walking mechanism (3) for adjusting the distance between the walking mechanism (3) and the mounting pipe (2); The cleaning mechanism (5) is located on one side of the mounting pipe (2) and abuts against the inner wall of the boiler body (1) for cleaning the inner wall of the boiler body (1).

2. The power plant boiler ash cleaning device according to claim 1, characterized in that: The cleaning mechanism (5) includes a second motor (51) disposed inside the mounting tube (2), a rotating shaft (52) disposed at the power output end of the second motor (51), a rotating disk (53) disposed on the side of the rotating shaft (52) away from the mounting tube (2), and cleaning components (54) disposed at equal angles on the rotating disk (53). The mounting tube (2) is provided with a mounting groove (201) for placing the second motor (51), and the rotating disk (53) is provided with a mounting ring (531) for installing the cleaning components (54).

3. The power plant boiler ash cleaning device according to claim 2, characterized in that: The cleaning component (54) includes a telescopic rod (541) passing through the mounting ring (531) and a scraper (542) disposed on the side of the telescopic rod (541) away from the mounting ring (531). The rotating disk (53) has a placement groove (5301) at the position corresponding to the telescopic rod (541) for the telescopic rod (541) to move.

4. The power plant boiler ash cleaning device according to claim 3, characterized in that: The portion of the rotating disk (53) located between the placement groove (5301) and the telescopic rod (541) is provided with an elastic element (544).

5. The power plant boiler ash cleaning device according to claim 3, characterized in that: The scraper (542) has a guide rod (543) passing through the mounting ring (531) on the side near the mounting ring (531), and a limit block (545) is provided on the side of the guide rod (543) away from the scraper (542).

6. The power plant boiler ash cleaning device according to claim 1, characterized in that: The mounting tube (2) has side plates (21) at equal angles on its outer circular end face for mounting the walking mechanism (3) and the adjusting mechanism (4).

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