On-line cleaning robot for accumulated dust of boiler smoke tube

Abstract

The utility model relates to the technical field of boiler smoke tube cleaning, in particular to an online cleaning robot for accumulated ash of a boiler smoke tube. The ash removal device comprises a rack, an ash removal mechanism is assembled on the inner side of the rack and used for removing accumulated ash in a boiler smoke pipe, an adjusting mechanism is assembled between the ash removal mechanism and the rack, the ash removal mechanism comprises an air pump, an exhaust pipe, a connecting cylinder and a spraying pipe, the air pump is assembled on the inner side of the rack, the exhaust pipe is fixed to the output end of the air pump, and the connecting cylinder is connected with the spraying pipe. The end, away from the exhaust pipe, of the connecting cylinder is fixedly provided with a spraying pipe. Through the structural design of the ash removal mechanism and the adjusting mechanism, the device can conveniently adjust the spray pipe to the corresponding position, the cover plate on the smoke pipe is opened by the cover pushing device, then the spray pipe enters the smoke pipe, and air injection and ash removal are achieved, so that the working efficiency is improved, and the flexibility and the high efficiency of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler flue tube cleaning, in particular to an on-line cleaning robot for boiler flue tube ash accumulation. Background Technique

[0002] The flue tube boiler, as an indispensable energy recovery device in the industrial field, its main function is to utilize the waste heat of the high-temperature flue gas generated in the production process. With its efficient heat energy recovery ability, this kind of boiler is widely used in various production lines, converting the heat energy that might otherwise be wasted into hot water or steam, providing continuous power for other production sections.

[0003] During the operation of the flue tube boiler, the high-temperature flue gas is the key energy carrier. These flue gases flow rapidly in the closed flue tubes and exchange heat with the convection tube bundles, enabling the recovery of heat energy. However, this high-temperature flue gas often carries a large amount of soot and impurities. As the flow rate of the flue gas decreases and the temperature drops sharply, these soot particles are easily attached to the inner wall of the flue tubes. Even for the vertically arranged flue tubes, a large amount of dust will accumulate after long-term use. The existence of this accumulated ash not only affects the appearance of the flue tube boiler, but more importantly, it will seriously hinder the transfer of heat energy and reduce the waste heat recovery efficiency of the boiler. This means that the heat energy that should have been recovered and utilized is wasted due to the existence of accumulated ash, not only causing energy waste, but also increasing the operating cost of the enterprise.

[0004] Currently, the existing ash cleaning methods for the flue tubes of flue tube boilers are mostly manual ash cleaning. This method needs to be carried out after the boiler is shut down and waiting for the temperature inside the furnace to drop to room temperature before operation. However, the cooling process of the boiler takes a long time, and due to the relatively thin flue tubes, the manual ash cleaning is difficult, time-consuming, and has extremely low efficiency. For this reason, we propose an on-line cleaning robot for boiler flue tube ash accumulation. Summary of the Invention

[0005] The purpose of the utility model is to provide an on-line cleaning robot for boiler flue tube ash accumulation to solve the problems raised in the above background technique.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An on-line cleaning robot for boiler flue tube ash accumulation includes a frame. A cleaning mechanism is assembled inside the frame. The cleaning mechanism is used to clean the ash accumulated in the boiler flue tubes. An adjusting mechanism is assembled between the cleaning mechanism and the frame. The cleaning mechanism includes an air pump, an exhaust pipe, a connecting cylinder, and a spray pipe. An air pump is assembled inside the frame. The output end of the air pump is fixed with an exhaust pipe. One end of the exhaust pipe is fixed with a connecting cylinder. The end of the connecting cylinder away from the exhaust pipe is fixed with a spray pipe.

[0008] Preferably, the adjusting mechanism includes an X-axis moving component, a Y-axis moving component, and a Z-axis moving component. An X-axis moving component is assembled on one side of the top of the frame. A Y-axis moving component is assembled outside the X-axis moving component. A Z-axis moving component is assembled outside the Y-axis moving component. The Z-axis moving component is assembled and connected to the air pump.

[0009] Preferably, the X-axis moving component includes a second fixed cavity plate, a second motor, a second lead screw, and a moving block. A second fixed cavity plate is fixed on one side of the top of the frame. A second motor is fixed at one end of the second fixed cavity plate. Two ends inside the second fixed cavity plate are rotationally connected by bearings to a second lead screw. The output end of the second motor penetrates the second fixed cavity plate and is fixed to the second lead screw. The outside of the second lead screw is threadedly connected to the moving block. The moving block is slidably connected to the inside of the second fixed cavity plate.

[0010] Preferably, the Y-axis moving component includes a first fixed cavity plate, a first motor, a first lead screw, and a movable arm. One end of the moving block is fixed with a first fixed cavity plate. The top of the first fixed cavity plate is fixed with a first motor. The top and bottom inside the first fixed cavity plate are rotationally connected by bearings to a first lead screw. The output end of the first motor penetrates the first fixed cavity plate and is fixed to the first lead screw. The outside of the first lead screw is threadedly connected to the movable arm. The movable arm is slidably connected to the inside of the first fixed cavity plate.

[0011] Preferably, the Z-axis moving component includes a rodless cylinder and a guide rail. One end of the movable arm is fixed with a guide rail. A rodless cylinder is arranged outside the guide rail. The top of the rodless cylinder is fixed to the air pump. One end of the connecting cylinder is fixed to the rodless cylinder.

[0012] Preferably, the Z-axis moving component further includes a push cover device. One end of the guide rail is fixed with a hydraulic rod. The output end of the hydraulic rod is fixed with a push cover device.

[0013] Preferably, mesh guards are fixed at both ends of one side of the frame. Protection nets are fixed inside the mesh guards.

[0014] Preferably, a controller is fixed at one end of the frame. The controller is electrically connected to the air pump, the rodless cylinder, the first motor, the second motor, and the hydraulic rod through wires.

[0015] It can be seen without doubt that through the above technical solutions of this application, the technical problems to be solved by this application can surely be solved.

[0016] Meanwhile, through the above technical solutions, the present utility model has at least the following beneficial effects:

[0017] Through the structural design of the dust cleaning mechanism and the adjustment mechanism, the present utility model makes it convenient to adjust the spray pipe to the corresponding position, enabling the push cover device to open the cover plate on the smoke pipe, and then the spray pipe enters the smoke pipe to blow air for dust removal, which improves the working efficiency and enhances the flexibility and high efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of the smoke pipe and the cover plate in the prior art;

[0020] Figure 2 It is a schematic structural diagram of the present utility model;

[0021] Figure 3 It is a schematic connection structure diagram of the first motor and the first lead screw of the present utility model;

[0022] Figure 4 It is a schematic sectional view structure diagram of the first fixed cavity plate and the second fixed cavity plate of the present utility model.

[0023] In the drawings, the list of components represented by each reference numeral is as follows:

[0024] In the figure: 1, frame; 2, air pump; 3, exhaust pipe; 4, connecting cylinder; 5, spray pipe; 6, rodless cylinder; 7, guide rail; 8, push cover device; 9, first fixed cavity plate; 10, first motor; 11, first lead screw; 12, movable arm; 13, second fixed cavity plate; 14, second motor; 15, second lead screw; 16, moving block; 17, mesh guardrail; 18, controller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to make the purpose, technical solutions and advantages of the present utility model more clear, the following will further describe the present utility model in detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] Embodiment 1

[0027] Refer to Figures 1-4, An on-line ash cleaning robot for boiler smoke tubes, comprising a frame 1. An ash cleaning mechanism is assembled inside the frame 1. The ash cleaning mechanism is used to clean the ash in the boiler smoke tubes. An adjusting mechanism is assembled between the ash cleaning mechanism and the frame 1. The ash cleaning mechanism includes an air pump 2, an exhaust pipe 3, a connecting cylinder 4 and a nozzle 5. The air pump 2 is assembled inside the frame 1. The output end of the air pump 2 is fixed with the exhaust pipe 3. One end of the exhaust pipe 3 is fixed with the connecting cylinder 4. The end of the connecting cylinder 4 away from the exhaust pipe 3 is fixed with the nozzle 5. As Figure 1 shown, in the prior art CN215982627U, a plurality of smoke tubes are arranged inside a smoke tube boiler. A cover plate is arranged at the end of the smoke tube. The cover plate is generally composed of a round cover and a strip-shaped protrusion. The round cover blocks the end face of the smoke tube. The strip-shaped protrusion is above the smoke tube. The connection part between the strip-shaped protrusion and the round cover is rotatably connected to the smoke tube through a pin. When the push cover device 8 corresponds to the position of the cover plate, under the push of the hydraulic rod, the push cover device 8 pushes the strip-shaped protrusion, so that the round cover no longer blocks the smoke tube, and then it is convenient for the ash cleaning mechanism to carry out the next ash cleaning work.

[0028] The adjusting mechanism includes an X-axis moving component, a Y-axis moving component and a Z-axis moving component. An X-axis moving component is assembled on one side of the top of the frame 1. A Y-axis moving component is assembled on the outside of the X-axis moving component. A Z-axis moving component is assembled on the outside of the Y-axis moving component. The Z-axis moving component is assembled and connected with the air pump 2.

[0029] The X-axis moving component includes a second fixed cavity plate 13, a second motor 14, a second lead screw 15 and a moving block 16. The second fixed cavity plate 13 is fixed on one side of the top of the frame 1. One end of the second fixed cavity plate 13 is fixed with the second motor 14. Both ends inside the second fixed cavity plate 13 are rotatably connected with a second lead screw 15 through bearings. The output end of the second motor 14 penetrates the second fixed cavity plate 13 and is fixed with the second lead screw 15. The outside of the second lead screw 15 is threadedly connected with the moving block 16. The moving block 16 is slidably connected to the inside of the second fixed cavity plate 13. When the second motor 14 is started, the output end of the second motor 14 drives the second lead screw 15 to rotate, so as to realize the movement of the moving block 16 along the inside of the second fixed cavity plate 13 to drive the first fixed cavity plate 9 to move.

[0030] The Y-axis moving component includes a first fixed cavity plate 9, a first motor 10, a first lead screw 11 and a movable arm 12. One end of the moving block 16 is fixed with a first fixed cavity plate 9. The top of the first fixed cavity plate 9 is fixed with a first motor 10. The top and bottom inside the first fixed cavity plate 9 are rotatably connected by a bearing to a first lead screw 11. The output end of the first motor 10 penetrates the first fixed cavity plate 9 and is fixed to the first lead screw 11. The outer side of the first lead screw 11 is threadedly connected with the movable arm 12. The movable arm 12 is slidably connected to the inside of the first fixed cavity plate 9. When the first motor 10 is started, the output end of the first motor 10 drives the first lead screw 11 to rotate. Since the movable arm 12 is threadedly connected to the first lead screw 11 and the movable arm 12 is slidably connected to the inside of the first fixed cavity plate 9, the movable arm 12 can drive the guide rail 7 to move along the outer side of the first lead screw 11.

[0031] The Z-axis moving component includes a rodless cylinder 6 and a guide rail 7. One end of the movable arm 12 is fixed with a guide rail 7. The outer side of the guide rail 7 is provided with a rodless cylinder 6. The top of the rodless cylinder 6 is fixed to the air pump 2. One end of the connecting cylinder 4 is fixed to the rodless cylinder 6. After the rodless cylinder 6 is started, it can move along the outer side of the guide rail 7. At the same time, the inside of the guide rail 7 is a cavity, which is convenient for the hydraulic rod to be fixed inside the guide rail 7.

[0032] Both ends of one side of the frame 1 are fixed with mesh guards 17. Inside the mesh guards 17 are fixed with protective nets. Through the setting of the mesh guards 17, protection can be carried out to increase the safety of the operators.

[0033] One end of the frame 1 is fixed with a controller 18. The controller 18 is electrically connected to the air pump 2, the rodless cylinder 6, the first motor 10, the second motor 14 and the hydraulic rod through wires. Through the setting of the controller 18, it is convenient to achieve precise control, making the dust cleaning efficiency more efficient and precise.

[0034] Embodiment 2

[0035] Further optimize Embodiment 1. Specifically, as Figure 3 shown, the Z-axis moving component further includes a push cover device 8. One end of the guide rail 7 is fixed with a hydraulic rod. The output end of the hydraulic rod is fixed with a push cover device 8. The push cover device 8 is an inclined panel or a robotic arm. Those skilled in the art can make any selection according to their needs or convenience. Through the setting of the push cover device 8, it is convenient to push up the cover plate, so that the smoke pipe is opened, facilitating the next dust cleaning operation.

[0036] Based on the above, it can be seen that:

[0037] The technical problem addressed by the present utility model is as follows: Currently, the existing soot cleaning method for the smoke tubes of a smoke tube boiler is mostly manual soot cleaning. This method needs to be carried out after the boiler is shut down and can only be operated after the temperature inside the furnace has dropped to room temperature. However, the cooling process of the boiler takes a long time, and due to the relatively thin smoke tubes, manual soot cleaning is difficult, time-consuming, and extremely inefficient; the technical solutions of the above-mentioned various embodiments are adopted. At the same time, the implementation process of the above technical solutions is as follows:

[0038] Move this device to the designated area, and then electrically connect this device to an external power source. When it is necessary to remove dust from the smoke tubes, start the first motor 10 and the second motor 14, so that the output end of the first motor 10 drives the first lead screw 11 to rotate, and then the movable arm 12 drives the guide rail 7 to move along the outside of the first lead screw 11. At the same time, the output end of the second motor 14 drives the second lead screw 15 to rotate, so that the moving block 16 drives the first fixed cavity plate 9 to move along the outside of the second lead screw 15. Through the control of the first motor 10 and the second motor 14 by the controller 18, the position of the push cover device 8 corresponding to the cover plate at the end of the smoke tube is achieved. Then start the hydraulic rod, so that the hydraulic rod pushes the push cover device 8 to move until the push cover device 8 contacts the top of the cover plate and pushes the cover plate open. At this time, the smoke tube is no longer blocked by the cover plate. Then, through the controller 18, control the first motor 10 and the second motor 14 again, so that the spray pipe 5 is aligned with the smoke tube. Then start the rodless cylinder 6, so that the rodless cylinder 6 drives the air pump 2 and the connecting cylinder 4 to move along the top of the guide rail 7, so that the spray pipe 5 is inserted into the smoke tube. Finally, start the air pump 2, and the output end of the air pump 2 exhausts air, which is sprayed into the inside of the smoke tube through the exhaust pipe 3, the connecting cylinder 4, and the spray pipe 5 for soot cleaning operation.

[0039] With the above settings, this application can surely solve the above technical problems. At the same time, the following technical effects are achieved:

[0040] Through the structural design of the soot cleaning mechanism and the adjustment mechanism of the present utility model, this device is convenient for adjusting the spray pipe 5 to the corresponding position, enabling the push cover device 8 to open the cover plate on the smoke tube, and then enabling the spray pipe 5 to enter the smoke tube for jetting soot removal, which speeds up the working efficiency and improves the flexibility and efficiency of this device.

[0041] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0042] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all of them. The preferred embodiments of the present utility model are shown in the accompanying drawings, but do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present utility model in other related technical fields shall be similarly within the scope of the patent protection of the present utility model.

Claims

1. An on-line cleaning robot for boiler smoke tubes, characterized in that, It includes a frame (1), and a dust cleaning mechanism is assembled inside the frame (1). The dust cleaning mechanism is used to clean the ash accumulated in the boiler flue pipes. An adjusting mechanism is assembled between the dust cleaning mechanism and the frame (1). The dust cleaning mechanism includes an air pump (2), an exhaust pipe (3), a connecting cylinder (4) and a spray pipe (5). The air pump (2) is assembled inside the frame (1). The output end of the air pump (2) is fixed with the exhaust pipe (3). One end of the exhaust pipe (3) is fixed with the connecting cylinder (4). One end of the connecting cylinder (4) away from the exhaust pipe (3) is fixed with the spray pipe (5).

2. The on-line ash cleaning robot for boiler flue tubes according to claim 1, characterized in that, The adjusting mechanism includes an X-axis moving component, a Y-axis moving component and a Z-axis moving component. An X-axis moving component is assembled on one side of the top of the frame (1). A Y-axis moving component is assembled outside the X-axis moving component. A Z-axis moving component is assembled outside the Y-axis moving component. The Z-axis moving component is assembled and connected with the air pump (2).

3. The on-line ash cleaning robot for boiler flue pipes according to claim 2, characterized in that, The X-axis moving component includes a second fixed cavity plate (13), a second motor (14), a second lead screw (15) and a moving block (16). The second fixed cavity plate (13) is fixed on one side of the top of the frame (1). One end of the second fixed cavity plate (13) is fixed with the second motor (14). Both ends inside the second fixed cavity plate (13) are rotatably connected with a second lead screw (15) through bearings. The output end of the second motor (14) penetrates through the second fixed cavity plate (13) and is fixed with the second lead screw (15). The outside of the second lead screw (15) is threadedly connected with the moving block (16). The moving block (16) is slidably connected with the inside of the second fixed cavity plate (13).

4. The on-line ash cleaning robot for boiler flue tubes according to claim 3, characterized in that, The Y-axis moving component includes a first fixed cavity plate (9), a first motor (10), a first lead screw (11) and a movable arm (12). One end of the moving block (16) is fixed with the first fixed cavity plate (9). The top of the first fixed cavity plate (9) is fixed with the first motor (10). The top and bottom inside the first fixed cavity plate (9) are rotatably connected with a first lead screw (11) through bearings. The output end of the first motor (10) penetrates through the first fixed cavity plate (9) and is fixed with the first lead screw (11). The outside of the first lead screw (11) is threadedly connected with the movable arm (12). The movable arm (12) is slidably connected with the inside of the first fixed cavity plate (9).

5. An on-line ash cleaning robot for boiler flue tubes according to claim 4, characterized in that, The Z-axis moving component includes a rodless cylinder (6) and a guide rail (7). One end of the movable arm (12) is fixed with the guide rail (7). The rodless cylinder (6) is arranged outside the guide rail (7). The top of the rodless cylinder (6) is fixed with the air pump (2). One end of the connecting cylinder (4) is fixed with the rodless cylinder (6).

6. The on-line ash cleaning robot for boiler flue tubes according to claim 5, characterized in that, The Z-axis moving component further includes a push cover device (8). One end of the guide rail (7) is fixed with a hydraulic rod. The output end of the hydraulic rod is fixed with the push cover device (8).

7. The on-line ash cleaning robot for boiler flue tubes according to claim 1, characterized in that, Mesh guardrails (17) are fixed at both ends on one side of the frame (1). Protection nets are fixed inside the mesh guardrails (17).

8. The on-line ash cleaning robot for boiler flue tubes according to claim 6, characterized in that One end of the frame (1) is fixed with a controller (18), and the controller (18) is electrically connected to an air pump (2), a rodless cylinder (6), a first motor (10), a second motor (14) and a hydraulic rod through wires.

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