Ash removal device for smoke exhaust pipeline of boiler

Abstract

The utility model relates to the field of ash removal devices, in particular to a boiler smoke exhaust pipeline ash removal device which comprises a smoke exhaust pipe and an ash removal assembly. The outer end of the smoke exhaust pipe is provided with a dust removal assembly used for blowing internal dust through air flow for dust removal treatment, the dust removal assembly comprises a pulse valve, an air bag, a butt joint pipe, a clamping ring, a plug pin, a butt joint disc, a collecting box, a chuck, a screw, a connecting block, a movable rod and a filter plate, the pulse valve is located on the outer side of the smoke exhaust pipe, and the lower end of the pulse valve is provided with a connecting pipe; according to the utility model, the pulse valve is connected with the smoke exhaust pipe for ash removal treatment, the pulse valve can instantly release high-pressure gas to form pulse airflow, so that dust on the filter bag is effectively removed, thorough ash removal is ensured, residual dust is reduced, meanwhile, the pulse valve can be flexibly adjusted according to ash removal requirements of different pipelines, and the adaptability of equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of ash removal devices, and in particular to a ash removal device for boiler flue gas ducts. Background Technology

[0002] Boiler flue gas ducts are piping systems used to discharge exhaust gases and smoke generated during boiler combustion to the outside. They are an important component of the boiler system, ensuring the smooth discharge of combustion products and maintaining the normal operation of the boiler. After prolonged use, a large amount of dust and impurities accumulate inside the flue gas ducts, affecting their discharge efficiency. When cleaning the boiler flue gas ducts, a cleaning device is needed to remove the accumulated dust and soot, reduce exhaust resistance, ensure the normal operation and efficient heat transfer of the boiler, and protect the flue gas ducts from corrosion and wear.

[0003] Existing dust removal devices typically use shock wave cleaners to clean pipelines during the dust removal process. However, shock wave cleaners are prone to damage to the equipment during operation, affecting its stable operation. In addition, the strong directionality of the shock waves creates blind spots, making it difficult to effectively clean the back of the pipe wall, resulting in incomplete dust removal and affecting the overall dust removal effect.

[0004] Therefore, for the existing dust removal devices mentioned above, shock wave dust collectors are usually used to clean the pipes. However, the operation of shock wave dust collectors can easily damage the equipment and affect its stable operation. At the same time, the strong directionality of the shock wave creates blind spots and makes it difficult to effectively clean the back of the pipe wall, resulting in incomplete dust removal and affecting the overall dust removal effect. A boiler flue gas duct dust removal device can be designed, using pulse valves to instantly release high-pressure gas, forming a pulse airflow to remove dust from the filter bags, ensuring thorough dust removal, reducing dust residue, and improving the dust removal effect. Utility Model Content

[0005] To overcome the limitations of existing dust removal devices, shock wave dust collectors are typically used to clean pipelines. However, shock wave dust collectors are prone to damage during operation, affecting the stable operation of the equipment. In addition, the strong directionality of the shock waves creates blind spots for dust removal, making it difficult to effectively clean the back of the pipe wall, resulting in incomplete dust removal and affecting the overall dust removal effect.

[0006] The technical solution of this utility model is as follows: a boiler flue gas duct cleaning device, including a flue gas pipe and a cleaning component; the outer end of the flue gas pipe is equipped with a cleaning component for cleaning the internal dust by blowing it with airflow. The cleaning component includes a pulse valve, an air tank, a connecting pipe, a retaining ring, a pin, a connecting plate, a collection box, a chuck, screws, a connecting block, a movable rod, and a filter plate. The pulse valve is located on the outside of the flue gas pipe, and a connecting pipe is provided at the lower end of the pulse valve.

[0007] Preferably, a pulse valve is used to connect the flue gas pipe for dust removal. The pulse valve can instantly release high-pressure gas to form a pulse airflow, effectively removing dust from the filter bags, ensuring thorough dust removal, and reducing dust residue. At the same time, the pulse valve can be flexibly adjusted according to the dust removal requirements of different pipes, improving the adaptability of the equipment. The connecting pipe is fixed with a pin, and after disassembly and assembly according to different flue gas pipe lengths, the pulse valve is connected and fixed to achieve quick connection between the connecting pipe and the flue gas pipe. The auxiliary device forms a stable pulse airflow, effectively removing dust from the filter bags. At the same time, multiple sets of filter plates are used to collect dust through the gas in the collection box, so that the dust-laden gas can have more sufficient contact with the filter material, reducing the dust concentration in the exhaust gas, ensuring effective collection of dust inside the pipe, and improving the cleaning and collection of dust inside the boiler flue gas pipe.

[0008] Preferably, one end of the pulse valve is provided with a retaining ring, the outer wall of which is surrounded by multiple sets of pins, and the inside of the retaining ring is provided with a connecting pipe, which is fixedly connected to the retaining ring by multiple sets of pins.

[0009] As a preferred option, a connecting plate is provided between the connecting pipe and the exhaust pipe. The connecting pipe is fixedly connected to the exhaust pipe through the connecting plate, and multiple sets of limiting bolts are provided inside the connecting plate.

[0010] Preferably, a collection box is provided on the side of the exhaust pipe away from the connecting pipe, and multiple sets of filter plates are installed inside the collection box.

[0011] Preferably, the exhaust pipe is equipped with a chuck at one end near the collection box, and multiple sets of connecting blocks are arranged around the top of the chuck. Screws are provided at the lower end of the connecting blocks, and the chuck is fixedly connected to the collection box by the multiple sets of screws.

[0012] Preferably, the connecting block has a movable rod on the side away from the screw, and the movable rod extends through the collection box into the interior.

[0013] Preferably, an air chamber is provided at the end of the connecting pipe away from the pulse valve, and the air chamber is fixedly connected to the pulse valve through the connecting pipe.

[0014] The beneficial effects of this utility model are:

[0015] 1. Compared to traditional dust removal devices, this system utilizes pulse valves connected to the exhaust pipes for dust removal. The pulse valves instantly release high-pressure gas, creating a pulsed airflow that effectively removes dust from the filter bags, ensuring thorough cleaning and reducing dust residue. Furthermore, the pulse valves can be flexibly adjusted to meet the cleaning needs of different pipes, improving the equipment's adaptability. A pin-fixed connecting pipe is used; after disassembly and reassembly according to different exhaust pipe lengths, the pulse valve is connected and fixed, enabling rapid connection between the connecting pipe and the exhaust pipe. This auxiliary device generates a stable pulsed airflow, effectively removing dust from the filter bags. Simultaneously, multiple filter plates are used in the collection box to collect dust through the gas, allowing the dust-laden gas to contact the filter material more fully, reducing the dust concentration in the exhaust gas, ensuring effective collection of dust inside the pipes, and improving the cleaning and collection of dust inside the boiler exhaust pipes. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of the dust removal device of this utility model.

[0017] Figure 2 The diagram shown is a schematic representation of the pulse valve structure of the dust removal device of this utility model.

[0018] Figure 3 The diagram shown is a schematic representation of the bottom structure of the dust removal device of this utility model.

[0019] Figure 4 The diagram shown is a schematic representation of the internal structure of the dust removal device collection box of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Exhaust pipe; 201. Pulse valve; 202. Connecting pipe; 203. Air manifold; 204. Connecting pipe; 205. Snap ring; 206. Pin; 207. Connecting plate; 208. Limit bolt; 209. Collection box; 210. Chuck; 211. Screw; 212. Connecting block; 213. Movable rod; 214. Filter plate. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-4 This utility model provides an embodiment of a boiler flue gas duct cleaning device, which includes a flue gas pipe 1 and a cleaning assembly; the outer end of the flue gas pipe 1 is equipped with a cleaning assembly for cleaning internal dust by blowing it with airflow. The cleaning assembly includes a pulse valve 201, an air manifold 203, a connecting pipe 204, a retaining ring 205, a pin 206, a connecting plate 207, a collection box 209, a chuck 210, a screw 211, a connecting block 212, a movable rod 213, and a filter plate 214. The pulse valve 201 is located on the outside of the flue gas pipe 1, and the lower end of the pulse valve 201 is provided with a connecting pipe 202.

[0023] Please see Figures 1-2 In this embodiment, one end of the pulse valve 201 is provided with a retaining ring 205. Multiple sets of pins 206 are arranged around the outer wall of the retaining ring 205. A connecting pipe 204 is provided inside the retaining ring 205. The connecting pipe 204 is fixedly connected to the retaining ring 205 by the multiple sets of pins 206. By fixing the connecting pipe 204 with the pins 206, and after disassembly and reassembly according to different exhaust pipe lengths, the pulse valve 201 is connected and fixed, achieving rapid connection between the connecting pipe 204 and the exhaust pipe 1. This auxiliary device forms a stable pulse airflow, effectively removing dust from the filter bag. To improve cleaning efficiency, a connecting plate 207 is provided between the connecting pipe 204 and the exhaust pipe 1. The connecting pipe 204 is fixedly connected to the exhaust pipe 1 through the connecting plate 207. Multiple sets of limiting bolts 208 are provided inside the connecting plate 207. By using the limiting bolts 208 to fix the connection between the connecting pipe 204 and the exhaust pipe 1, relative movement or detachment between the connecting pipe 204 and the exhaust pipe 1 is prevented during the cleaning process. This ensures a tighter connection between the connecting pipe 204 and the exhaust pipe 1, effectively preventing flue gas leakage and improving the sealing of the pipeline cleaning process.

[0024] Please see Figures 1-3 In this embodiment, a collection box 209 is provided on the side of the exhaust pipe 1 away from the connecting pipe 204. The collection box 209 is equipped with multiple sets of filter plates 214. By using multiple sets of filter plates 214 to collect dust through the gas in the collection box 209, the dust-laden gas can come into more full contact with the filter material, reducing the dust concentration in the exhaust gas and ensuring effective collection of dust inside the pipe. A chuck 210 is provided at the end of the exhaust pipe 1 near the collection box 209. Multiple sets of connecting blocks 212 are arranged around the top of the chuck 210. Screws 211 are provided at the lower end of the connecting blocks 212. The chuck 210 is fixedly connected to the collection box 209 by multiple sets of screws 211. By using screws 211 to connect the collection box 209 and the exhaust pipe 1, the collection box 209 and the exhaust pipe 1 are prevented from falling off when the airflow is too large. This ensures that the flue gas can be collected smoothly through the collection box 209, ensuring the purification effect and enhancing the stability of the entire device.

[0025] Please see Figures 2-4In this embodiment, a movable rod 213 is provided on the side of the connecting block 212 away from the screw 211. The movable rod 213 extends through the collection box 209 into the interior. By using the movable rod 213 to assist the screw 211 in fixing the connection between the exhaust pipe 1 and the collection box 209, the connection stability between the exhaust pipe 1 and the collection box 209 is effectively enhanced, preventing the connection from loosening or falling off due to excessive airflow or equipment vibration, and improving overall stability. An air tank 203 is provided at the end of the connecting pipe 202 away from the pulse valve 201. The air tank 203 is fixedly connected to the pulse valve 201 through the connecting pipe 202. By using the air tank 203 to store a certain amount of compressed air, a stable air source is provided for the pulse valve 201, so that the pulse valve 201 can obtain uniform and sufficient air supply when working, thereby ensuring the stability and reliability of the dust removal effect.

[0026] During operation, firstly, depending on the length or position of the exhaust pipe 1, the connecting pipe 204 is disassembled and assembled using pin 206 and then connected to the pulse valve 201. Replacement is made according to different pipe sizes. Secondly, the collection box 209 is connected to the exhaust pipe 1 using screws 211 to prevent it from detaching when the airflow is too strong, ensuring that the flue gas can be smoothly collected through the collection box 209. The movable rod 213, along with the screws 211, secures the connection between the exhaust pipe 1 and the collection box 209, enhancing the stability of the connection. After the collection box 209 is installed at one end of the exhaust pipe 1, the connecting plate 207 is connected using limit bolts 208 to secure the connecting pipe 204. 4. Connect and limit the connection between the connecting pipe 204 and the exhaust pipe 1 to prevent relative movement or detachment and gas leakage during the dust removal process. After the equipment parts are installed in sequence, start the pulse valve 201 to inject the compressed air stored in the air tank 203 into the interior of the exhaust pipe 1. The high-pressure gas is evenly distributed to the inner wall of the pipe to form a pulse airflow, which causes the dust to fall off under the impact of the pulse airflow. The gas carries the dust and impurities into the collection box 209. Multiple sets of filter plates 214 are used to collect dust through the gas in the collection box 209, so that the dust-laden gas can come into more full contact with the filter material, reduce the dust concentration in the exhaust gas, and ensure the effective collection of dust inside the pipe.

[0027] Through the above steps, the pulse valve 201 is used to connect to the flue pipe 1 for dust removal. The pulse valve 201 can instantly release high-pressure gas to form a pulse airflow, effectively removing dust from the filter bags, ensuring thorough dust removal, and reducing dust residue. At the same time, the pulse valve 201 can be flexibly adjusted according to the dust removal requirements of different pipes, improving the adaptability of the equipment. The connecting pipe 204 is fixed by the pin 206. After disassembly and assembly according to different flue pipe lengths, the pulse valve 201 is connected and fixed to achieve quick connection between the connecting pipe 204 and the flue pipe 1. The auxiliary device forms a stable pulse airflow, effectively removing dust from the filter bags. At the same time, multiple sets of filter plates 214 are used to collect dust through the gas in the collection box 209, so that the dust-laden gas can come into more full contact with the filter material, reducing the dust concentration in the exhaust gas, ensuring effective collection of dust inside the pipe, and improving the cleaning and collection of dust inside the boiler flue pipe 1.

Claims

1. A boiler flue gas duct cleaning device, comprising a flue gas duct (1); characterized in that: It also includes a dust removal assembly; the outer end of the exhaust pipe (1) is equipped with a dust removal assembly for cleaning the internal dust by blowing it with airflow. The dust removal assembly includes a pulse valve (201), an air manifold (203), a connecting pipe (204), a retaining ring (205), a pin (206), a docking plate (207), a collection box (209), a chuck (210), a screw (211), a connecting block (212), a movable rod (213), and a filter plate (214). The pulse valve (201) is located on the outside of the exhaust pipe (1), and the lower end of the pulse valve (201) is provided with a connecting pipe (202).

2. The boiler flue gas duct cleaning device according to claim 1, characterized in that: One end of the pulse valve (201) is provided with a retaining ring (205), and the outer wall of the retaining ring (205) is surrounded by multiple sets of pins (206). The inside of the retaining ring (205) is provided with a connecting pipe (204), and the connecting pipe (204) is fixedly connected to the retaining ring (205) through multiple sets of pins (206).

3. The boiler flue gas duct cleaning device according to claim 2, characterized in that: A connecting plate (207) is provided between the connecting pipe (204) and the exhaust pipe (1). The connecting pipe (204) is fixedly connected to the exhaust pipe (1) through the connecting plate (207). Multiple sets of limiting bolts (208) are provided inside the connecting plate (207).

4. The boiler flue gas duct cleaning device according to claim 1, characterized in that: A collection box (209) is provided on the side of the exhaust pipe (1) away from the connecting pipe (204), and multiple sets of filter plates (214) are provided inside the collection box (209).

5. The boiler flue gas duct cleaning device according to claim 4, characterized in that: The exhaust pipe (1) has a chuck (210) at one end near the collection box (209). Multiple sets of connecting blocks (212) are arranged around the top of the chuck (210). Screws (211) are provided at the lower end of the connecting blocks (212). The chuck (210) is fixedly connected to the collection box (209) by multiple sets of screws (211).

6. The boiler flue gas duct cleaning device according to claim 4, characterized in that: The connecting block (212) has a movable rod (213) on the side away from the screw (211), and the movable rod (213) extends through the collection box (209) into the interior.

7. The boiler flue gas duct cleaning device according to claim 1, characterized in that: An air chamber (203) is provided at the end of the connecting pipe (202) away from the pulse valve (201), and the air chamber (203) is fixedly connected to the pulse valve (201) through the connecting pipe (202).

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