Descaling device for inner wall of furnace tube of heating furnace

Abstract

The invention relates to the technical field of furnace tube cleaning, in particular to a heating furnace tube inner wall descaling device. According to the descaling device for the inner wall of the furnace tube of the heating furnace, bristles can be detached and replaced, the maintenance cost is reduced, and therefore the descaling device can adapt to different cleaning tasks. Comprising a water conveying pipe, a connecting sleeve, a rotating sleeve, a spray head, a centering assembly and the like, the connecting sleeve is in threaded connection with the left side of the water conveying pipe, the rotating sleeve is rotationally connected with the left side of the connecting sleeve, and the spray head is connected with the left side of the rotating sleeve. When the cleaning brush needs to be replaced, the rotating frame is rotated to enable the limiting frame to move towards the middle to be separated from the inserting block, then the cleaning brush is moved leftwards to be taken out for replacement, and the effects that the bristles can be detached and replaced, the maintenance cost is reduced, and the cleaning brush can adapt to different cleaning tasks conveniently are achieved.

Description

Technical Field

[0001] This invention relates to the field of furnace tube cleaning technology, and in particular to a descaling device for the inner wall of a heating furnace tube. Background Technology

[0002] In industries such as heating and petrochemicals, heating furnaces are crucial production equipment. However, during long-term operation, various deposits (such as iron oxide and sulfides) gradually accumulate on the inner walls of the furnace tubes, leading to decreased heat transfer efficiency, increased energy consumption, and potentially even safety accidents. Regular cleaning and descaling of the furnace tube inner walls is necessary.

[0003] For example, CN118168350A discloses an automatic coke removal device and method for furnace tubes in a heating furnace. The device includes a cleaning assembly comprising a drive motor, a mounting plate, a transmission shaft, four guide rods, a cleaning plate, a mounting base, a rotating ring, a nozzle, a sliding rod, a sliding seat, a spring, and brush bristles. One end of the transmission shaft is fixedly connected to one side of the mounting base. The device uses a drive motor to drive the transmission shaft, which in turn drives the mounting base. When the mounting base rotates, centrifugal force causes the cleaning plate to bring the brush bristles into contact with the inner wall of the furnace tube body. The brush bristles then remove the coke from the inner wall of the furnace tube body, replacing the traditional manual cleaning method and improving work efficiency. With the aid of a water pump, cleaning fluid is sprayed from the nozzle onto the inner wall of the furnace tube body. The brush bristles, in conjunction with the cleaning fluid, remove oil stains from inside the furnace tube body, thus achieving simultaneous cleaning of coke and oil stains and improving the cleaning effect. However, because the descaling device on the inner wall of the furnace tube has fixed bristles, it is impossible to replace the bristles individually when they are worn or damaged, resulting in high maintenance costs and difficulty in adapting to different cleaning tasks.

[0004] Therefore, a descaling device for the inner wall of heating furnace tubes has now been developed that allows for the disassembly and replacement of brush bristles, reducing maintenance costs and making it suitable for different cleaning tasks. Summary of the Invention

[0005] To overcome the shortcomings of existing descaling devices for the inner wall of heating furnace tubes, which use fixed brushes that cannot be replaced individually when worn or damaged, resulting in high maintenance costs and difficulty in adapting to different cleaning tasks, this invention provides a descaling device for the inner wall of heating furnace tubes that allows for disassembly and replacement of brushes, reducing maintenance costs and making it easier to adapt to different cleaning tasks.

[0006] Technical solution: A descaling device for the inner wall of a heating furnace tube, comprising a water supply pipe, a connecting sleeve, a rotating sleeve, a nozzle, a centering component, and a cleaning component. The connecting sleeve is threadedly connected to the left side of the water supply pipe, and the rotating sleeve is rotatably connected to the left side of the connecting sleeve. The nozzle is connected to the left side of the rotating sleeve. The water supply pipe is provided with a centering component that enables the nozzle to be kept in the center position inside the furnace tube, and the rotating sleeve is provided with a cleaning component that enables the inner wall of the furnace tube to be scrubbed.

[0007] In addition, it is particularly preferred that the nozzle has multiple spray holes.

[0008] Furthermore, it is particularly preferred that the central component includes a threaded sleeve, a sliding sleeve, a connecting rod, a sliding rod, and a roller. The right side of the water pipe is threadedly connected to the threaded sleeve, and the left side of the threaded sleeve is rotatably connected to the sliding sleeve. The sliding sleeve is slidably connected to the water pipe. The upper and lower parts of the sliding sleeve are rotatably connected to two connecting rods on the left and right. The two adjacent connecting rods on the left and right are rotatably connected to the sliding rods, and the sliding rods are slidably connected to the water pipe. The middle part of each sliding rod is rotatably connected to a roller.

[0009] Furthermore, it is particularly preferred that the cleaning component includes mounting blocks, cleaning brushes, insert blocks, rotating frames, elastic elements, and limiting frames. Multiple mounting blocks are connected to the rotating sleeve, and insert blocks are snapped onto each mounting block. Cleaning brushes are connected between the insert blocks. The rotating frame is rotatably connected to the rotating sleeve, and an elastic element is connected between the rotating frame and the rotating sleeve. Limiting frames are slidably connected to the right side of each mounting block, and the limiting frames are all slidably connected to the rotating frame. Each limiting frame is snapped into an adjacent insert block.

[0010] Furthermore, it is particularly preferred that the cleaning brush has bristles.

[0011] Furthermore, it is particularly preferred that the elastic element be a torsion spring.

[0012] The beneficial effects are as follows: 1. When the cleaning brush needs to be replaced, the present invention rotates the rotating frame to move the limiting frame to the middle to disengage from the insert block, and then moves the cleaning brush to the left to take it out for replacement. This achieves the effect of disassembling and replacing the brush bristles, reducing maintenance costs, and making it easier to adapt to different cleaning tasks.

[0013] 2. This invention rotates the screw sleeve, pushes the sliding sleeve to move, causes the connecting rod to rotate, and pushes the sliding rod to move. According to the diameter of the furnace tube, the distance between the rollers is adjusted so that when the water pipe enters the furnace tube, the rollers are in contact with the inner wall of the furnace tube, keeping the nozzle spraying water in the center of the furnace tube, thereby ensuring the flushing effect inside the furnace tube. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the water supply pipe and nozzle of the present invention.

[0016] Figure 3 This is a three-dimensional structural diagram of the connecting sleeve and rotating sleeve of the present invention.

[0017] Figure 4 This is a three-dimensional structural diagram of the screw sleeve and roller of the present invention.

[0018] Figure 5 This is a three-dimensional structural diagram of the cleaning brush and the limiting frame of the present invention.

[0019] The above-mentioned attached drawings include the following reference numerals: 1. Water supply pipe, 2. Connecting sleeve, 3. Rotating sleeve, 4. Nozzle, 5. Screw sleeve, 6. Sliding sleeve, 7. Connecting rod, 8. Sliding rod, 9. Roller, 10. Mounting block, 11. Cleaning brush, 12. Insert block, 13. Rotating frame, 14. Torsion spring, 15. Limiting frame. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] A descaling device for the inner wall of a heating furnace tube, such as Figures 1-5 As shown, it includes a water supply pipe 1, a connecting sleeve 2, a rotating sleeve 3, a nozzle 4, a centering component, and a cleaning component. The connecting sleeve 2 is threadedly connected to the left side of the water supply pipe 1, and the rotating sleeve 3 is rotatably connected to the left side of the connecting sleeve 2. The nozzle 4 is connected to the left side of the rotating sleeve 3. The nozzle 4 has multiple spray holes for easy water spraying and cleaning. The centering component is provided on the water supply pipe 1, and the cleaning component is provided on the rotating sleeve 3.

[0022] like Figure 1 and Figure 4 As shown, the central component includes a threaded sleeve 5, a sliding sleeve 6, a connecting rod 7, a sliding rod 8, and a roller 9. The right side of the water supply pipe 1 is threadedly connected to the threaded sleeve 5, and the left side of the threaded sleeve 5 is rotatably connected to the sliding sleeve 6. The sliding sleeve 6 is slidably connected to the water supply pipe 1. The upper and lower parts of the sliding sleeve 6 are rotatably connected to the left and right connecting rods 7. The two adjacent left and right connecting rods 7 are rotatably connected to the sliding rods 8. The sliding rods 8 are all slidably connected to the water supply pipe 1, and the middle of the sliding rods 8 is rotatably connected to the roller 9.

[0023] like Figure 1 and Figure 5As shown, the cleaning assembly includes mounting blocks 10, cleaning brushes 11, insert blocks 12, rotating frames 13, elastic elements, and limiting frames 15. Two mounting blocks 10 are connected to the rotating sleeve 3, and insert blocks 12 are snapped onto each mounting block 10. A cleaning brush 11 is connected between the insert blocks 12. The cleaning brush 11 has bristles to facilitate cleaning the inner wall of the furnace tube. The rotating frame 13 is rotatably connected to the rotating sleeve 3. An elastic element, which is a torsion spring 14, is connected between the rotating frame 13 and the rotating sleeve 3. Limiting frames 15 are slidably connected to the right side of each mounting block 10. The limiting frames 15 are all slidably connected to the rotating frame 13 and are snapped into the adjacent insert blocks 12.

[0024] When using this invention, first connect the water supply pipe 1 to the external water pipe, then install the rotating sleeve 3 and the nozzle 4 on the water supply pipe 1 through the connecting sleeve 2, then send the nozzle 4 into the furnace tube of the heating furnace, and supply water to the water supply pipe 1 through the water pipe, so that the water flows from the connecting sleeve 2 and the rotating sleeve 3 into the nozzle 4. When the water flows into the rotating sleeve 3, the water flow impacts the guide block inside the rotating sleeve 3, causing the rotating sleeve 3 to rotate, so that the nozzle 4 rotates and sprays water evenly to clean the inner wall of the furnace tube.

[0025] Before the nozzle 4 is inserted, the screw sleeve 5 can be rotated to push the sliding sleeve 6 to move, so that the connecting rod 7 rotates and pushes the sliding rod 8 to move. According to the diameter of the furnace tube, the distance between the rollers 9 is adjusted so that when the water pipe 1 enters the furnace tube, the rollers 9 are in contact with the inner wall of the furnace tube, keeping the nozzle 4 spraying water in the center of the furnace tube to ensure the flushing effect inside the furnace tube.

[0026] When cleaning the furnace tube, the rotating frame 13 can be rotated, causing the torsion spring 14 to deform and the limiting frame 15 to move towards the center. Then, the cleaning brush 11 is placed on the rotating sleeve 3 from left to right, so that the insert block 12 and the mounting block 10 are engaged. Then, the rotating frame 13 is released, the torsion spring 14 returns to its original position, and the limiting frame 15 moves outward and inserts into the insert block 12, fixing the insert block 12 onto the mounting block 10, thereby fixing the cleaning brush 11. As the rotating sleeve 3 is impacted and rotated by the water flow, it will drive the cleaning brush 11 to rotate and scrub the inner wall of the furnace tube, improving the cleaning effect. When the cleaning brush 11 needs to be replaced, the rotating frame 13 is rotated, causing the limiting frame 15 to move towards the center and disengage from the insert block 12. Then, the cleaning brush 11 is moved to the left and taken out for replacement. This allows for the disassembly and replacement of the brush bristles, reducing maintenance costs and making it suitable for different cleaning tasks.

[0027] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A descaling device for the inner wall of a heating furnace tube, characterized in that it includes: It has a water supply pipe (1), a connecting sleeve (2), a rotating sleeve (3), a nozzle (4), a centering component and a cleaning component. The water supply pipe (1) is threadedly connected to the connecting sleeve (2) on the left side, the connecting sleeve (2) is rotatably connected to the rotating sleeve (3) on the left side, and the rotating sleeve (3) is connected to the nozzle (4) on the left side. The water supply pipe (1) is provided with a centering component that can keep the nozzle (4) in the center position inside the furnace tube, and the rotating sleeve (3) is provided with a cleaning component that can scrub the inner wall of the furnace tube.

2. The descaling device for the inner wall of a heating furnace tube as described in claim 1, characterized in that, The nozzle (4) has multiple spray holes.

3. The descaling device for the inner wall of a heating furnace tube as described in claim 1, characterized in that, The central component includes a threaded sleeve (5), a sliding sleeve (6), a connecting rod (7), a sliding rod (8), and a roller (9). The right side of the water pipe (1) is threadedly connected to the threaded sleeve (5), and the left side of the threaded sleeve (5) is rotatably connected to the sliding sleeve (6). The sliding sleeve (6) is slidably connected to the water pipe (1). The upper and lower parts of the sliding sleeve (6) are rotatably connected to the left and right connecting rods (7). The two adjacent left and right connecting rods (7) are rotatably connected to the sliding rods (8). The sliding rods (8) are slidably connected to the water pipe (1). The middle part of the sliding rods (8) is rotatably connected to the roller (9).

4. The descaling device for the inner wall of a heating furnace tube as described in claim 1, characterized in that, The cleaning components include mounting blocks (10), cleaning brushes (11), inserts (12), rotating frames (13), elastic elements, and limiting frames (15). Multiple mounting blocks (10) are connected to the rotating sleeve (3). Inserts (12) are snapped onto each mounting block (10). Cleaning brushes (11) are connected between the inserts (12). The rotating frame (13) is rotatably connected to the rotating sleeve (3). An elastic element is connected between the rotating frame (13) and the rotating sleeve (3). Limiting frames (15) are slidably connected to the right side of each mounting block (10). The limiting frames (15) are slidably connected to the rotating frame (13). The limiting frames (15) are snapped into each adjacent insert (12).

5. The descaling device for the inner wall of a heating furnace tube as described in claim 4, characterized in that, The cleaning brush (11) has bristles.

6. The descaling device for the inner wall of a heating furnace tube as described in claim 4, characterized in that, The elastic element is a torsion spring (14).

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