Device for preventing dust accumulation in rear tail flue

Abstract

The utility model belongs to the technical field of ash removal equipment, and particularly relates to a device for preventing ash deposition in a rear tail flue, which comprises a shock wave generator and an ash removal pipeline arranged at the bottom end of the shock wave generator, a connecting assembly comprises a bearing box, a threaded groove, a threaded rod and a clamping plate, the threaded grooves are symmetrically formed in the bearing box, and the clamping plates are movably installed at one ends of the threaded rods. According to the shock wave generator, when the dust removal pipeline is disassembled and assembled through the clamping plates, firstly, the threaded rod rotates in the threaded groove, and when the threaded rod rotates, the clamping plates are pushed to get close to the middle of the bearing box to clamp the joint of the air outlet pipe and the air inlet pipe, so that the shock wave generator is connected with the dust removal pipeline, and the operation is simple and convenient; the ash removal pipeline is checked and cleaned at regular intervals, so that the ash blowing efficiency of the rear-tail flue is improved, ash accumulation of the rear-tail flue is prevented, the ash removal pipeline is convenient to disassemble and assemble, and the working efficiency of cleaning and checking the ash removal pipeline at regular intervals is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust cleaning equipment, in particular to a device for preventing dust from accumulating in a rear flue. Background Art

[0002] The gas energy shock wave rotary soot blower is a device used to prevent dust accumulation in the rear flue. The gas energy shock wave rotary soot blower uses the shock wave effect generated by high-pressure gas to make the gas in the nozzle form a high-speed rotating airflow. When the airflow passes through the flue, it will drive the dust and particulate matter in the flue to rotate together, and scrape them off the flue wall in a high-speed impact manner. By regularly using the gas energy shock wave rotary soot blower to clean the flue, dust and particulate matter can be prevented from accumulating in the flue, thereby maintaining the patency of the flue, improving the thermal efficiency of the system, and reducing pollutant emissions.

[0003] Patent document CN219797231U discloses a step-by-step rotating air shock wave soot blower, "including a pulse tank, a shell is arranged at the bottom of the pulse tank through a first air outlet pipe, a connecting flange and a second air outlet pipe, an exhaust pipe is rotatably arranged inside the shell, and a nozzle is arranged at the air outlet end of the exhaust pipe, and a telescopic cylinder, a connecting support plate, a connecting plate and a turntable are arranged on the shell through a mounting frame, a rotating shaft is arranged on the turntable, and the left end of the rotating shaft is connected to the exhaust pipe, a protective sleeve is rotatably arranged on the exhaust pipe, and a one-way valve is arranged on the first air outlet pipe. Under the action of the telescopic cylinder, the turntable and the rotating shaft, the utility model enables the exhaust pipe to rotate 360 ​​degrees, thereby increasing the soot blowing action space of the device and improving the soot blowing quality of the device. In addition, the device only passes The pneumatic drive method reduces the working energy consumption of the device, makes the device structure simple, and is convenient for the staff to maintain and service it, and is also convenient for operation. However, the step-by-step rotary air shock wave soot blower in the above-mentioned public document mainly considers that the exhaust pipe can rotate 360 ​​degrees, which increases the soot blowing action space of the device, and does not take into account that a certain degree of dust will accumulate inside the soot cleaning pipeline after working for a period of time, and it is necessary to clean it regularly to prevent the dust from clogging the soot cleaning pipeline. However, the connection between the soot cleaning pipeline and the shock wave generator is inconvenient to disassemble, resulting in the problem that the operation of regular maintenance and cleaning of the soot cleaning pipeline is more troublesome. Therefore, it is necessary to develop a device to prevent soot accumulation in the rear flue, so as to facilitate the disassembly and assembly of the soot cleaning pipeline. Utility Model Content

[0004] The utility model aims to provide a device for preventing dust accumulation in the rear flue, so as to solve the technical problem that the dust cleaning pipeline is inconvenient to disassemble and clean in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for preventing dust accumulation in the rear flue, comprising a shock wave generator and a dust cleaning pipeline installed at the bottom end of the shock wave generator, a rotating nozzle installed at one end of the dust cleaning pipeline, an air outlet pipe fixedly connected to the bottom end of the shock wave generator, a control valve fixedly installed on the air outlet pipe, a connecting assembly fixedly installed on the air outlet pipe, an air inlet pipe fixedly connected to the dust cleaning pipeline, and the air inlet pipe is connected to the air outlet pipe through the connecting assembly;

[0006] The connecting assembly includes a carrying box, a threaded groove, a threaded rod and a clamping plate. The carrying box is fixedly installed on the air outlet pipe, and one end of the air outlet pipe is inserted into the carrying box. The threaded grooves are symmetrically arranged on both sides of the carrying box. The threaded rod is installed in the threaded groove through a threaded connection. The clamping plate is movably installed at one end of the threaded rod, and the clamping plate is located in the carrying box. The air outlet pipe is inserted into the air inlet pipe, and the clamping plate clamps the connection between the air outlet pipe and the air inlet pipe.

[0007] Preferably, a connecting groove is provided on the clamping plate, an annular groove is arranged around the connecting groove, an annular protrusion is slidably arranged in the annular groove, and the annular protrusion is arranged around one end of the threaded rod.

[0008] Preferably, slide grooves are symmetrically arranged on the inner wall of the carrying box, a slider is slidably connected in the slide groove, and the slider is fixedly mounted on the clamping plate.

[0009] Preferably, a silicone pad is fixedly installed on the inner side of the splint, and the silicone pad has good elasticity and softness.

[0010] Preferably, an extension tube is slidably arranged in the cleaning pipe, and a rotating nozzle is installed at the output end of the extension tube, a sealing box is symmetrically installed on the cleaning pipe, a micro motor is fixedly installed in the sealing box, a screw rod is fixedly connected to the output end of the micro motor, a slip ring is threadedly connected to the screw rod, a connecting rod is fixedly connected to the slip ring, and the connecting rod is penetrated in the cleaning pipe and fixedly connected to the extension tube.

[0011] Preferably, movable grooves are symmetrically arranged on the dust cleaning pipe, and the connecting rod is slidably connected to the movable grooves.

[0012] Preferably, an air pipe is fixedly connected to the shock wave generator, and the shock wave generator is connected to peripheral equipment through the air pipe.

[0013] Preferably, a mounting frame is fixedly mounted on the shock wave generator, and the shock wave generator is fixedly connected to the external bracket through the mounting frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model is convenient for installing and disassembling the dust cleaning pipe by installing the clamping plate, firstly, the air outlet pipe is connected with the air inlet pipe, so that the air outlet pipe is inserted into the air inlet pipe, and then the threaded rod is rotated in the threaded groove. When the threaded rod rotates, the clamping plate will be pushed to the middle of the carrying box, and finally the connection between the air outlet pipe and the air inlet pipe is clamped and fixed by the symmetrical clamping plates, so that the shock wave generator is connected to the dust cleaning pipe. On the contrary, if it is necessary to disassemble it, it is only necessary to reverse the threaded rod to move the clamping plate backward to release the clamping limit on the connection between the air outlet pipe and the air inlet pipe, and then the disassembled dust cleaning pipe is taken out from the rear flue for cleaning and maintenance. The operation is simple and convenient, and regular inspection and cleaning of the dust cleaning pipe improves the efficiency of dust blowing in the rear flue, prevents dust accumulation in the rear flue, and is convenient for disassembling and assembling the dust cleaning pipe, which improves the work efficiency of regular cleaning and inspection, and reduces the probability of potential blockage and failure.

[0016] 2. The utility model increases the cleaning depth of the cleaning pipe by installing an extension pipe. First, the micro motor is started by the controller to drive the screw to rotate. The screw drives the extension pipe to move outside the cleaning pipe and deep into the rear flue through the connecting rod on the slip ring. Then, the accumulated dust in the deep of the rear flue is cleaned by the rotating nozzle, which increases the cleaning trajectory of the cleaning pipe and improves the cleaning efficiency of the rear flue. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the connection assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the threaded rod and the clamping plate of the utility model;

[0020] Figure 4 for Figure 2 A magnified schematic diagram of the structure in the middle;

[0021] Figure 5 This is a schematic diagram of the internal structure of the dust cleaning pipeline of the utility model;

[0022] Figure 6 for Figure 5 A magnified schematic diagram of structure B.

[0023] In the figure: 1. shock wave generator; 2. dust cleaning pipeline; 3. rotating nozzle; 4. air outlet pipe; 5. air inlet pipe; 6. carrier box; 7. threaded groove; 8. threaded rod; 9. clamping plate; 10. connecting groove; 11. annular groove; 12. annular protrusion; 14. silicone pad; 15. slide groove; 16. slider; 17. extension tube; 18. sealing box; 19. micro motor; 20. screw rod; 21. slip ring; 22. connecting rod; 23. movable groove; 24. air supply pipe; 25. mounting bracket; 26. control valve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 A device for preventing dust accumulation in a rear flue comprises a shock wave generator 1 and a dust cleaning pipe 2 installed at the bottom of the shock wave generator 1, a rotating nozzle 3 is installed at one end of the dust cleaning pipe 2, an air outlet pipe 4 is fixedly connected to the bottom of the shock wave generator 1, a control valve 26 is fixedly installed on the air outlet pipe 4, a connecting component is fixedly installed on the air outlet pipe 4, an air inlet pipe 5 is fixedly connected to the dust cleaning pipe 2, and the air inlet pipe 5 is connected to the air outlet pipe 4 through the connecting component, an air delivery pipe 24 is fixedly connected to the shock wave generator 1, and the shock wave generator 1 is connected to an external device through the air delivery pipe 24, and an installation component is fixedly installed on the shock wave generator 1 The mounting frame 25 is provided, and the shock wave generator 1 is fixedly connected to the external bracket through the mounting frame 25. When preventing dust from accumulating in the rear flue, the shock wave generator 1 is firstly welded to the external support frame of the equipment through the mounting frame 25, and the dust cleaning pipe 2 connected thereto is passed through the rear flue, and then the control valve 26 is opened by the controller to quickly release the compressed air in the shock wave generator 1, and the strong compressed air is quickly ejected through the dust cleaning pipe 2, and the dust accumulated in the rear flue is peeled off and cleaned through the strong shock wave. At the same time, the angle of the rotating nozzle 3 is adjusted by the controller to clean the dust accumulated in all directions of the rear flue;

[0026] The connecting assembly includes a carrier box 6, a threaded groove 7, a threaded rod 8 and a clamping plate 9. The carrier box 6 is fixedly installed on the air outlet pipe 4, and one end of the air outlet pipe 4 is inserted into the carrier box 6. The threaded grooves 7 are symmetrically arranged on both sides of the carrier box 6. The threaded rod 8 is installed in the threaded groove 7 through a threaded connection. The clamping plate 9 is movably installed at one end of the threaded rod 8, and the clamping plate 9 is located in the carrier box 6. The air outlet pipe 4 is inserted in the air inlet pipe 5, and the clamping plate 9 clamps the connection between the air outlet pipe 4 and the air inlet pipe 5. After the cleaning pipe 2 has been working for a period of time, a certain degree of dust will accumulate inside, and it needs to be cleaned regularly to prevent the dust from clogging the cleaning pipe 2. However, the connection between the cleaning pipe 2 and the shock wave generator 1 is inconvenient to disassemble, which makes it inconvenient to perform regular maintenance and cleaning of the cleaning pipe 2. When it is convenient to install and disassemble the cleaning pipe 2, the installation of the cleaning pipe 2 is facilitated by installing the clamping plate 9. During disassembly, first connect the air outlet pipe 4 with the air inlet pipe 5 so that the air outlet pipe 4 is inserted into the air inlet pipe 5, and then rotate the threaded rod 8 in the threaded groove 7. When the threaded rod 8 rotates, it will push the clamping plate 9 to move closer to the middle of the supporting box 6, and finally clamp and fix the connection between the air outlet pipe 4 and the air inlet pipe 5 through the symmetrical clamping plates 9, so that the shock wave generator 1 is connected to the dust cleaning pipe 2. On the contrary, if it needs to be disassembled, just reverse the threaded rod 8 to move the clamping plate 9 backward to release the clamping limit on the connection between the air outlet pipe 4 and the air inlet pipe 5, and then take out the disassembled dust cleaning pipe 2 from the rear flue, clean and maintain it. The operation is simple and convenient. Regular inspection and cleaning of the dust cleaning pipe 2 improves the efficiency of dust blowing in the rear flue, prevents dust accumulation in the rear flue, and facilitates the disassembly and assembly of the dust cleaning pipe 2. It improves the efficiency of regular cleaning and inspection, and reduces the probability of potential blockage and failure.

[0027] See also Figure 3 A connecting groove 10 is provided on the clamping plate 9, and an annular groove 11 is arranged around the connecting groove 10. An annular protrusion 12 is slidably arranged in the annular groove 11, and the annular protrusion 12 is arranged around one end of the threaded rod 8. When the threaded rod 8 rotates into the carrying box 6 through the threaded groove 7, the annular protrusion 12 will rotate in the annular groove 11, and at the same time drive the clamping plate 9 to move forward, so that the clamping plate 9 will not rotate synchronously with the threaded rod 8.

[0028] See also Figure 4 A slide groove 15 is symmetrically arranged on the inner wall of the carrying box 6, a slider 16 is slidably connected in the slide groove 15, and the slider 16 is fixedly installed on the clamping plate 9. The slide groove 15 and the slider 16 play a role of limiting the clamping plate 9.

[0029] See also Figure 3A silicone pad 14 is fixedly installed on the inner side of the splint 9. The silicone pad 14 has good elasticity and softness. The silicone pad 14 has good sealing performance due to its good elasticity and softness, which is convenient for sealing the connection gap between the outlet pipe 4 and the inlet pipe 5 to prevent compressed air from flowing out through the gap.

[0030] See also Figure 1 , Figure 5 and Figure 6 An extension tube 17 is slidably arranged in the cleaning pipe 2, and the rotating nozzle 3 is installed at the output end of the extension tube 17. A sealing box 18 is symmetrically arranged on the cleaning pipe 2. A micro motor 19 is fixedly arranged in the sealing box 18. A screw rod 20 is fixedly connected to the output end of the micro motor 19. A slip ring 21 is threadedly connected to the screw rod 20. A connecting rod 22 is fixedly connected to the slip ring 21. The connecting rod 22 is penetrated in the cleaning pipe 2 and fixedly connected to the extension tube 17. A moving groove 23 is symmetrically arranged on the cleaning pipe 2, and the connecting rod 22 is slidably connected to the moving groove 23. When the amount of the moving groove 23 is increased, the connecting rod 22 is connected to the moving groove 23. When the cleaning depth of the cleaning pipe 2 is increased, an extension tube 17 is installed to facilitate increasing the cleaning depth of the cleaning pipe 2. First, the micro motor 19 is started by the controller to drive the screw rod 20 to rotate. The screw rod 20 synchronously drives the extension tube 17 to move outside the cleaning pipe 2 through the connecting rod 22 on the slip ring 21, and goes deep into the rear flue. Then, the accumulated ash in the deep of the rear flue is cleaned by the rotating nozzle 3, which increases the cleaning trajectory of the cleaning pipe 2 and improves the cleaning efficiency of the rear flue. The movable groove 23 is used to limit and guide the connecting rod 22.

[0031] Working principle: when it is convenient to install and disassemble the cleaning duct 2, the clamping plate 9 is installed to facilitate the installation and disassembly of the cleaning duct 2. First, the air outlet pipe 4 is connected with the air inlet pipe 5, and the air outlet pipe 4 is inserted into the air inlet pipe 5. Then the threaded rod 8 is rotated in the threaded groove 7. When the threaded rod 8 rotates, the clamping plate 9 will be pushed to the middle of the supporting box 6. Finally, the connection between the air outlet pipe 4 and the air inlet pipe 5 is clamped and fixed by the symmetrical clamping plates 9 to connect the shock wave generator 1 to the cleaning duct 2. Conversely, if it needs to be disassembled, it is only necessary to reverse the threaded rod 8 to move the clamping plate 9 backward to release the clamping limit on the connection between the air outlet pipe 4 and the air inlet pipe 5. Then the disassembled cleaning duct 2 is taken out from the rear flue and cleaned and maintained. The operation is simple and convenient, and the cleaning duct 2 can be checked and The cleaning improves the efficiency of soot blowing in the rear-end flue, prevents dust accumulation in the rear-end flue, facilitates the disassembly and assembly of the cleaning pipe 2, improves the efficiency of regular cleaning and inspection, and reduces the probability of potential blockage and failure. When the cleaning depth of the cleaning pipe 2 is increased, the extension pipe 17 is installed to facilitate increasing the cleaning depth of the cleaning pipe 2. First, the micro motor 19 is started by the controller to drive the screw rod 20 to rotate. The screw rod 20 synchronously drives the extension pipe 17 to move outside the cleaning pipe 2 and deep into the rear-end flue through the connecting rod 22 on the slip ring 21. Then, the dust accumulated deep in the rear-end flue is cleaned by the rotating nozzle 3, which increases the cleaning trajectory of the cleaning pipe 2 and improves the cleaning efficiency of the rear-end flue. The movable groove 23 is used to limit and guide the connecting rod 22.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A device for preventing dust accumulation in a rear flue, comprising a shock wave generator (1) and a dust removal pipeline (2) installed at the bottom end of the shock wave generator (1), characterized in that: A rotating nozzle (3) is installed at one end of the dust cleaning pipeline (2); an air outlet pipe (4) is fixedly connected to the bottom end of the shock wave generator (1); a control valve (26) is fixedly installed on the air outlet pipe (4); a connecting component is fixedly installed on the air outlet pipe (4); an air inlet pipe (5) is fixedly connected to the dust cleaning pipeline (2); and the air inlet pipe (5) is connected to the air outlet pipe (4) via the connecting component; The connection assembly comprises a carrier box (6), a threaded groove (7), a threaded rod (8) and a clamping plate (9); the carrier box (6) is fixedly mounted on the air outlet pipe (4), and one end of the air outlet pipe (4) is inserted into the carrier box (6); the threaded groove (7) is symmetrically arranged on both sides of the carrier box (6); the threaded rod (8) is installed in the threaded groove (7) through a threaded connection; the clamping plate (9) is movably mounted on one end of the threaded rod (8), and the clamping plate (9) is located in the carrier box (6); the air outlet pipe (4) is inserted into the air inlet pipe (5), and the clamping plate (9) clamps the connection between the air outlet pipe (4) and the air inlet pipe (5).

2. The device for preventing ash accumulation in the rear flue according to claim 1, characterized in that: The clamping plate (9) is provided with a connecting groove (10), an annular groove (11) is arranged around the connecting groove (10), an annular protrusion (12) is slidably arranged in the annular groove (11), and the annular protrusion (12) is arranged around one end of the threaded rod (8).

3. The device for preventing ash accumulation in the rear flue according to claim 1, characterized in that: A sliding groove (15) is symmetrically arranged on the inner wall of the carrying box (6), a sliding block (16) is slidably connected in the sliding groove (15), and the sliding block (16) is fixedly mounted on the clamping plate (9).

4. The device for preventing ash accumulation in the rear flue according to claim 1, characterized in that: A silicone pad (14) is fixedly mounted on the inner side of the clamping plate (9), and the silicone pad (14) has good elasticity and softness.

5. The device for preventing ash accumulation in the rear flue according to claim 1, characterized in that: An extension tube (17) is slidably arranged in the cleaning pipe (2), and the rotary nozzle (3) is installed at the output end of the extension tube (17). A sealing box (18) is symmetrically installed on the cleaning pipe (2), and a micro motor (19) is fixedly installed in the sealing box (18). The output end of the micro motor (19) is fixedly connected to a screw rod (20), and a slip ring (21) is threadedly connected to the screw rod (20). A connecting rod (22) is fixedly connected to the slip ring (21), and the connecting rod (22) is inserted into the cleaning pipe (2) and fixedly connected to the extension tube (17).

6. The device for preventing ash accumulation in the rear flue according to claim 1, characterized in that: The dust cleaning pipe (2) is symmetrically provided with movable grooves (23), and the connecting rod (22) is slidably connected to the movable grooves (23).

7. The device for preventing ash accumulation in the rear flue according to claim 1, characterized in that: An air pipe (24) is fixedly connected to the shock wave generator (1), and the shock wave generator (1) is connected to peripheral equipment via the air pipe (24).

8. The device for preventing ash accumulation in the rear flue according to claim 1, characterized in that: A mounting frame (25) is fixedly mounted on the shock wave generator (1), and the shock wave generator (1) is fixedly connected to an external support via the mounting frame (25).

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