High-temperature waste gas waste heat exchange and recovery device and method for factory

Abstract

The invention relates to the technical field of waste gas waste heat recovery, and discloses a high-temperature waste gas waste heat exchange recovery device and method for factories, the high-temperature waste gas waste heat exchange recovery device comprises a heat exchange box body and a plurality of water pump bodies, a curved flue gas pipe is arranged in the heat exchange box body, and the outer side wall of the curved flue gas pipe is sleeved with a plurality of movable ring frames; scraping rings in one-to-one correspondence with the movable ring frames are arranged on the inner wall of the curved smoke pipe in a sliding mode. When water flow passes through the conical hole, the caliber is gradually reduced, so that the flow speed is increased, the impact force of the water flow flowing out is increased, then the water flow with the increased impact force passes through the inclined hole and then impacts the shifting plate on the roller in the roller groove, and therefore the water flow alternately flows in along with the size of the water flow; due to the fact that the idler wheels abut against the outer wall of the curved smoke pipe, the whole movable ring frame can be driven to move in a reciprocating mode.

Description

Technical Field

[0001] This invention relates to the field of waste heat recovery technology, and in particular to a high-temperature waste heat recovery device and method for industrial waste gas. Background Technology

[0002] Factory high-temperature waste gas heat recovery devices are key equipment for improving energy efficiency, reducing production costs, and decreasing carbon emissions. The temperature of these waste gases is typically high, reaching 800 degrees Celsius, making direct, one-time heat exchange recovery impossible. Multi-stage heat recovery is required, with one stage generating high-temperature, high-pressure steam. However, the above-mentioned waste heat recovery typically suffers from the following problems:

[0003] The existing equipment does not effectively regulate the amount of water used for evaporation, resulting in the high-temperature and high-pressure steam containing a large amount of unvaporized water during the use of conventional waste heat recovery equipment. This means that the water volume is large, which makes it impossible to completely vaporize the water, thus reducing the vaporization recovery efficiency.

[0004] To address this, we designed a waste heat recovery device and method for high-temperature exhaust gas in factories. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that in the conventional waste heat recovery device in the prior art, the high temperature and high pressure steam contains a large amount of unvaporized water, which leads to a decrease in vaporization recovery efficiency. Therefore, this invention proposes a high temperature waste gas waste heat exchanger and recovery method for factories.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-temperature waste gas heat exchange and recovery device for factories includes a heat exchange box body and multiple water pump bodies. A curved flue gas pipe is installed inside the heat exchange box body. Multiple movable ring frames are fitted on the outer wall of the curved flue gas pipe, and scraper rings corresponding to the movable ring frames slide on the inner wall of the curved flue gas pipe. A water distribution component is installed inside the movable ring frame to spray water onto the outer surface of the curved flue gas pipe. Multiple water pump bodies are inserted into the side wall of the heat exchange box body, and clean water is introduced into the movable ring frames by the water pump bodies.

[0008] The outlet of the curved flue gas pipe is equipped with a collection pipe, and the inner wall of the collection pipe is provided with multiple material blocking rings to intercept impurities. Multiple steam discharge pipes are provided on the heat exchange box body.

[0009] Preferably, the water pump body supplies water to the heat exchange box body at alternating flow rates.

[0010] Preferably, multiple movable ring frames arranged coaxially are connected by multiple connecting pipes in a circular pattern, and a water chamber is opened in the connecting pipe. The water pump body introduces clean water into the water chamber through a rubber hose.

[0011] Preferably, the scraper ring is made of heat-resistant rubber, and the inner wall of the scraper ring has symmetrical scraping surfaces on both sides, and the outer wall of the scraper ring has an installation groove, and a second magnet is provided in the installation groove.

[0012] Preferably, the inner wall of the movable ring frame is provided with a first magnet piece that attracts the second magnet piece, and the inner wall of the movable ring frame is provided with a roller groove, and multiple roller grooves are provided. The multiple roller grooves are equidistant from each other in a circle, and a roller is provided in the roller groove, and the roller rotates in the roller groove through a rotating shaft.

[0013] Preferably, the outer wall of the movable ring frame is provided with an installation groove, and the connecting pipe is fixedly installed on the outer wall of the movable ring frame through the installation groove. The installation groove and the roller groove are in one-to-one correspondence, and the installation groove and the roller groove are connected by a water spray hole assembly. The water spray hole assembly is symmetrically opened on both sides of the roller groove.

[0014] Preferably, the water distribution component includes:

[0015] The sliding holes are multiple in number and are located on the connecting pipe. The sliding holes are connected to the water spray hole assembly.

[0016] A sliding stop block slides on the connecting pipe through a sliding hole and blocks one of the water spray hole components. A fixing plate is fixed on the water cavity, and the fixing plate is connected to the sliding stop block through a return spring.

[0017] Preferably, the water spray hole assembly includes a conical hole and an inclined hole, wherein the conical hole is inverted conical and the inclined hole is used to connect the conical hole and the roller groove.

[0018] Preferably, the outer wall of the roller has an annular inner groove, and a toggle plate is provided in the inner groove. The toggle plate is arranged radially and is equidistant from each other on the circumference.

[0019] A method for recovering waste heat from high-temperature exhaust gas in a factory using a heat exchanger and recovery device, the specific operating steps of which are as follows:

[0020] S1: First, the factory exhaust gas is introduced into the curved flue gas pipe inside the heat exchange box. Then, the hot exhaust gas carrying the waste particles flows upward from the curved flue gas pipe. During the flow, the heat in the hot exhaust gas can be conducted to the curved flue gas pipe, causing the curved flue gas pipe to heat up. At the same time, the water pump body is turned on. Since the water pump body supplies water to the heat exchange box body in a fluctuating manner, that is, the water flow rate alternates between large and small.

[0021] S2: When water flow rate is supplied alternately and clean water is introduced into the water chamber through the rubber hose, the large and small water flows alternately impact the sliding block in the water chamber. When the large flow of water impacts the sliding block, the impact force on the sliding block is greater than the compression force of the return spring. Therefore, the large flow of water flows out from the spray hole assembly on the side away from the fixed plate.

[0022] When a small flow of water impacts the sliding block, the impact force on the sliding block is less than the compression force of the return spring. At this time, the sliding block blocks the water jet assembly that originally allowed the large flow of water to pass through under the action of the return spring. Then, the small flow of water will flow out from the water jet assembly on the side closer to the fixed plate.

[0023] S3: When water flows through the conical hole, the diameter gradually narrows, which increases the flow velocity and the impact force of the water flow. The water with increased impact force then impacts the actuating plate on the roller in the roller groove after passing through the inclined hole. As the water flow alternates with the size of the flow, the water is alternately sprayed out through the spray hole assembly on both sides of the roller groove and drives the roller to roll back and forth. Since the roller abuts against the outer wall of the curved flue, it can drive the entire moving ring frame to move back and forth.

[0024] S4: During the reciprocating movement of the moving ring frame, the scraper ring on the inner wall of the curved flue gas pipe also reciprocates along with the moving ring frame because the second magnet attracts the first magnet. The reciprocating motion of the scraper ring will continuously rub against the inner wall of the curved flue gas pipe, and the static electricity generated will attract the exhaust gas particles in the exhaust gas. Then, during the scraper ring's scraping process, the flue gas particles adsorbed on the inner wall of the curved flue gas pipe will be scraped off, thus cleaning the inner wall of the curved flue gas pipe in a timely manner and effectively improving the heat transfer efficiency. These exhaust gas particles reach the collecting pipe with the airflow and then fall into the gap between the two blocking rings in the collecting pipe, completing the collection of flue gas particles.

[0025] The beneficial effects of this invention are as follows:

[0026] 1. In this invention, when water flows through the conical hole, the diameter gradually decreases, which increases the flow velocity and the impact force of the water flow. The water with increased impact force then impacts the actuating plate on the roller in the roller groove after passing through the inclined hole. As the water flow alternates with the size of the flow, the water is alternately sprayed out through the spray hole assembly on both sides of the roller groove and drives the roller to roll back and forth. Since the roller abuts against the outer wall of the curved flue pipe, it can drive the entire moving ring frame to move back and forth.

[0027] 2. In this invention, the reciprocating motion of the scraper ring continuously rubs against the inner wall of the curved flue pipe, and the static electricity generated at the same time will attract the exhaust gas particles in the exhaust gas. Then, during the scraper ring's scraping process, the flue gas particles adsorbed on the inner wall of the curved flue pipe will be scraped off, thus cleaning the inner wall of the curved flue pipe in a timely manner and effectively improving the heat transfer efficiency. These exhaust gas particles will reach the collecting pipe with the airflow and then fall into the gap between the two blocking rings in the collecting pipe, thus completing the collection of the flue gas particles. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a high-temperature waste gas waste heat exchange and recovery device for factories proposed in this invention.

[0029] Figure 2 This is a front view of a high-temperature waste gas heat exchange and recovery device for factories proposed in this invention.

[0030] Figure 3 This is a schematic diagram of the structure of the flue gas pipe and the material collection pipe in a high-temperature waste gas waste heat exchange and recovery device for factories proposed in this invention;

[0031] Figure 4 This is a partial exploded view of the flue gas pipe and the material collection pipe in a high-temperature waste gas waste heat exchange and recovery device for factories proposed in this invention.

[0032] Figure 5 This is a schematic diagram of the scraper ring in a high-temperature waste gas waste heat exchange and recovery device for factories proposed in this invention;

[0033] Figure 6 This is a schematic diagram of the moving ring frame in a high-temperature waste gas heat exchange and recovery device for factories proposed in this invention.

[0034] Figure 7 This is a front view of the movable ring frame in a high-temperature waste gas waste heat exchange and recovery device for factories proposed in this invention;

[0035] Figure 8 This is a schematic diagram of the water separation component in a high-temperature waste gas waste heat exchange and recovery device for factories proposed in this invention;

[0036] Figure 9 This is a schematic diagram of the water separation component in the first state of a high-temperature waste gas heat exchange and recovery device for factories proposed in this invention.

[0037] Figure 10 This is a schematic diagram of the second state of the water separation component in a high-temperature waste gas waste heat exchange and recovery device for factories proposed in this invention.

[0038] In the diagram: 1. Heat exchanger body; 2. Curved flue gas pipe; 3. Water pump body; 4. Rubber hose; 5. Steam exhaust pipe; 6. Material collection pipe; 7. Material blocking ring; 8. Moving ring frame; 9. Scraper ring; 10. Connecting pipe; 11. First magnet; 12. Shovel surface; 13. Second magnet; 14. Roller; 15. Internal groove; 16. Actuating plate; 17. Water cavity; 18. Sliding hole; 19. Sliding stop; 20. Fixing plate; 21. Return spring; 22. Conical hole; 23. Inclined hole; 24. Rotating shaft. Detailed Implementation

[0039] Reference Figures 1-10 A high-temperature waste gas heat exchange and recovery device for factories includes a heat exchange box body 1 and multiple water pump bodies 3. A curved flue gas pipe 2 is installed inside the heat exchange box body 1. Therefore, the waste gas carrying flue gas particles enters from the bottom of the curved flue gas pipe 2, and the hot waste gas carrying waste particles flows upward from the curved flue gas pipe 2. During the flow, the heat in the hot waste gas can be conducted to the curved flue gas pipe 2, causing the curved flue gas pipe 2 to heat up. At the same time, the water pump bodies 3 are turned on.

[0040] Multiple water pump bodies 3 are inserted into the side wall of the heat exchange box body 1, and the water pump bodies 3 supply clean water into the moving ring frame 8. The water pump bodies 3 supply water into the heat exchange box body 1 at different flow rates. The water pump bodies 3 supply clean water into the water chamber 17 through the rubber hose 4. Since the water supply amplitude of the water pump bodies 3 into the heat exchange box body 1 is fluctuating, that is, the water flow rate is supplied alternately, the water pump bodies 3 are existing technology, which provides water into the heat exchange box body 1 for heating and evaporation into water vapor, and will not be elaborated on here.

[0041] Multiple movable ring frames 8 are fitted on the outer wall of the curved flue pipe 2, as shown in the reference. Figure 1 In the state, multiple movable ring frames 8 are arranged coaxially and multiple connecting pipes 10 are arranged in a circle. A water cavity 17 is opened in the connecting pipe 10. When water flow rate is supplied alternately and clean water is introduced into the water cavity 17 through rubber hose 4, the water flow of different sizes alternately impacts the sliding block 19 in the water cavity 17.

[0042] The movable ring frame 8 has an installation groove on its outer side wall, and the connecting pipe 10 is fixedly installed on the outer side wall of the movable ring frame 8 through the installation groove. The installation groove and the roller groove are in one-to-one correspondence. Therefore, the clean water pumped in from the water pump body 3 will first enter the water chamber 17 in the connecting pipe 10.

[0043] The inner wall of the movable ring frame 8 is provided with roller grooves, and multiple roller grooves are provided. The multiple roller grooves are equidistant from each other in a circle. Rollers 14 are provided in the roller grooves, and the rollers 14 rotate in the roller grooves via rotating shafts 24. The rollers 14 roll against the outer wall of the curved flue duct 2, so the movable ring frame 8 moves along the axis of the curved flue duct 2 via the rollers 14.

[0044] The movable ring frame 8 is equipped with a water distribution component that sprays water onto the outer surface of the curved flue pipe 2. The water distribution component includes multiple sliding holes 18, which are opened on the connecting pipe 10 and are connected to the water spray hole component.

[0045] The water distribution assembly also includes a sliding stop 19, which slides on the connecting pipe 10 through the sliding hole 18 and blocks one of the water spray hole assemblies. A fixing plate 20 is fixed on the water cavity 17, and the fixing plate 20 is connected to the sliding stop 19 through a return spring 21.

[0046] The mounting groove and the roller groove are connected by a water spray hole assembly, which is symmetrically opened on both sides of the roller groove, so water can be sprayed out from both sides of the roller groove.

[0047] It should be noted that, referring to Figures 8-10 In the state where a large flow of water impacts the sliding block 19, the impact force on the sliding block 19 is greater than the compression force of the return spring 21, so the large flow of water flows out from the spray hole assembly on the side away from the fixed plate 20.

[0048] When a small flow of water impacts the sliding block 19, the impact force on the sliding block 19 is less than the compression force of the return spring 21. At this time, the sliding block 19 blocks the water jet assembly that originally allowed a large flow of water under the action of the return spring 21, and the small flow of water will flow out from the water jet assembly near the fixed plate 20.

[0049] Reference Figure 9 and Figure 10 In this state, the outer wall of the roller 14 has an annular inner groove 15, and a toggle plate 16 is provided in the inner groove 15. Multiple toggle plates 16 are arranged radially and are equidistant from each other on the circumference. Therefore, when the toggle plate 16 is impacted by water flow, it can drive the roller 14 to rotate together.

[0050] The water spray hole assembly includes a conical hole 22 and an inclined hole 23. The conical hole 22 is inverted cone-shaped, and the inclined hole 23 is used to connect the conical hole 22 and the roller groove. When the water flows through the conical hole 22, the diameter gradually narrows, which increases the flow velocity and thus increases the impact force of the water flow. The water flow with increased impact force then impacts the actuating plate 16 on the roller 14 in the roller groove after passing through the inclined hole 23. Therefore, the water flow alternates with the size of the water flow, and the water flow alternately sprays out through the water spray hole assembly on both sides of the roller groove, driving the roller 14 to roll back and forth. Since the roller 14 abuts against the outer wall of the curved flue pipe 2, it can drive the entire moving ring frame 8 to move back and forth.

[0051] The inner wall of the curved flue pipe 2 has a scraper ring 9 that corresponds one-to-one with the movable ring frame 8. The scraper ring 9 is made of heat-resistant rubber, and the inner wall of the scraper ring 9 has symmetrical scraping surfaces 12 on both sides. The outer wall of the scraper ring 9 has an installation groove, and a second magnet 13 is installed in the installation groove. The inner wall of the movable ring frame 8 has a first magnet 11 that attracts the second magnet 13. During the reciprocating movement of the movable ring frame 8, the scraper ring 9 on the inner wall of the curved flue pipe 2 will also reciprocate along with the movable ring frame 8 because the second magnet 13 attracts the first magnet 11.

[0052] The reciprocating motion of the scraper ring 9 will continuously rub against the inner wall of the curved flue pipe 2, and the static electricity generated will attract the exhaust gas particles in the exhaust gas. Then, during the scraping process of the scraper ring 9, the flue gas particles adsorbed on the inner wall of the curved flue pipe 2 will be scraped off, thus cleaning the inner wall of the curved flue pipe 2 in a timely manner and effectively improving the heat transfer efficiency.

[0053] A collection pipe 6 is installed at the outlet of the curved flue gas pipe 2. The inner wall of the collection pipe 6 is provided with multiple material blocking rings 7 to intercept impurities. Multiple steam discharge pipes 5 are provided on the heat exchange box body 1. These exhaust gas particles reach the collection pipe 6 with the airflow and then fall into the gap between the two material blocking rings 7 inside the collection pipe 6, thus completing the collection of flue gas particles.

[0054] A method for recovering waste heat from high-temperature exhaust gas in a factory using a heat exchanger and recovery device, the specific operating steps of which are as follows:

[0055] S1: First, the factory exhaust gas is introduced into the curved flue gas pipe 2 inside the heat exchange box body 1. Then, the hot exhaust gas carrying the waste particles flows upward from the curved flue gas pipe 2. During the flow, the heat in the hot exhaust gas can be conducted to the curved flue gas pipe 2, and the curved flue gas pipe 2 will be heated. At the same time, the water pump body 3 is turned on. Since the water pump body 3 supplies water to the heat exchange box body 1 in a fluctuating manner, that is, the water flow rate is alternately supplied.

[0056] S2: When water flow rate is supplied alternately and clean water is introduced into water chamber 17 through rubber hose 4, the large and small water flows alternately impact the sliding block 19 in water chamber 17. When the large flow of water impacts the sliding block 19, the impact force on the sliding block 19 is greater than the compression force of the return spring 21. Therefore, the large flow of water flows out from the spray hole assembly on the side away from the fixed plate 20.

[0057] When a small flow of water impacts the sliding block 19, the impact force on the sliding block 19 is less than the compression force of the return spring 21. At this time, the sliding block 19 blocks the water jet assembly that originally allowed the large flow of water to pass through under the action of the return spring 21. At this time, the small flow of water will flow out from the water jet assembly on the side closer to the fixed plate 20.

[0058] S3: When the water flows through the conical hole 22, the diameter gradually narrows, which increases the flow velocity and the impact force of the water flow. The water with increased impact force then impacts the actuating plate 16 on the roller 14 in the roller groove after passing through the inclined hole 23. As the water flow changes, the water flows in and out alternately. The water flow is then sprayed out alternately through the spray hole assembly on both sides of the roller groove and drives the roller 14 to roll back and forth. Since the roller 14 abuts against the outer wall of the curved flue pipe 2, it can drive the entire moving ring frame 8 to move back and forth.

[0059] S4: During the reciprocating movement of the moving ring frame 8, the scraper ring 9 on the inner wall of the curved flue gas pipe 2 will also reciprocate along with the moving ring frame 8 because the second magnet 13 and the first magnet 11 are attracted to each other. The reciprocating movement of the scraper ring 9 will continuously rub against the inner wall of the curved flue gas pipe 2, and the static electricity generated will attract the exhaust gas particles in the exhaust gas. Then, during the scraping process of the scraper ring 9, the flue gas particles adsorbed on the inner wall of the curved flue gas pipe 2 will be scraped off, so that the inner wall of the curved flue gas pipe 2 can be cleaned in time, effectively improving the heat transfer efficiency. These exhaust gas particles will reach the collecting pipe 6 with the airflow and then fall into the gap between the two blocking rings 7 in the collecting pipe 6, thus completing the collection of flue gas particles.

[0060] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-temperature waste gas heat exchange and recovery device for factories, comprising a heat exchange box body and multiple water pump bodies, characterized in that, The heat exchanger body is equipped with a curved flue gas pipe. Multiple movable ring frames are fitted on the outer wall of the curved flue gas pipe. A water distribution component is installed inside the movable ring frame to spray water onto the outer surface of the curved flue gas pipe. Multiple water pump bodies are inserted into the side wall of the heat exchanger body, and the water pump bodies pass clean water into the movable ring frames. Multiple steam discharge pipes are installed on the heat exchanger body.

2. The high-temperature waste gas heat exchange and recovery device for factories according to claim 1, characterized in that, The outlet of the curved flue gas pipe is equipped with a material collection pipe. The inner wall of the material collection pipe is provided with multiple material blocking rings to intercept impurities. The water pump body supplies water to the heat exchange box body at different flow rates.

3. The high-temperature waste gas heat exchange and recovery device for factories according to claim 2, characterized in that, Multiple movable ring frames are arranged coaxially and connected in a circular pattern with multiple connecting pipes. A water chamber is opened in the connecting pipe, and the water pump body introduces clean water into the water chamber through a rubber hose.

4. The high-temperature waste gas heat exchange and recovery device for factories according to claim 3, characterized in that, The inner wall of the curved flue has a scraper ring that corresponds to the moving ring frame. The scraper ring is made of heat-resistant rubber, and the inner wall of the scraper ring has symmetrical scraping surfaces on both sides. The outer wall of the scraper ring has an installation groove, and a second magnet is installed in the installation groove.

5. A high-temperature waste gas heat exchange and recovery device for factories according to claim 4, characterized in that, The inner wall of the movable ring frame is provided with a first magnet piece that attracts the second magnet piece. The inner wall of the movable ring frame is provided with a roller groove, and multiple roller grooves are provided. The multiple roller grooves are equidistant from each other in a circle. A roller is provided in the roller groove, and the roller rotates in the roller groove through a rotating shaft.

6. A high-temperature waste gas heat exchange and recovery device for factories according to claim 5, characterized in that, The outer wall of the movable ring frame is provided with an installation groove, and the connecting pipe is fixedly installed on the outer wall of the movable ring frame through the installation groove. The installation groove and the roller groove are in one-to-one correspondence, and the installation groove and the roller groove are connected by a water spray hole assembly. The water spray hole assembly is symmetrically opened on both sides of the roller groove.

7. A high-temperature waste gas heat exchange and recovery device for factories according to claim 6, characterized in that, The water distribution components include: The sliding holes are multiple in number and are located on the connecting pipe. The sliding holes are connected to the water spray hole assembly. A sliding stop block slides on the connecting pipe through a sliding hole and blocks one of the water spray hole components. A fixing plate is fixed on the water cavity, and the fixing plate is connected to the sliding stop block through a return spring.

8. A high-temperature waste gas heat exchange and recovery device for factories according to claim 7, characterized in that, The water spray nozzle assembly includes a tapered orifice and an inclined orifice. The tapered orifice is inverted cone-shaped, and the inclined orifice is used to connect the tapered orifice and the roller groove.

9. A high-temperature waste gas heat exchange and recovery device for factories according to claim 8, characterized in that, The outer wall of the roller has an annular internal groove, and a toggle plate is installed in the internal groove. The toggle plate is arranged radially and is equidistant from each other around the circumference.

10. A method for recovering waste heat from industrial high-temperature exhaust gas using a heat exchanger and recovery device, applied to the industrial high-temperature exhaust gas heat exchanger and recovery device of claim 9, characterized in that... The specific operating steps are as follows: S1: First, the factory exhaust gas is introduced into the curved flue gas pipe inside the heat exchange box. Then, the hot exhaust gas carrying the waste particles flows upward from the curved flue gas pipe. During the flow, the heat in the hot exhaust gas can be conducted to the curved flue gas pipe, causing the curved flue gas pipe to heat up. At the same time, the water pump body is turned on. Since the water pump body supplies water to the heat exchange box body in a fluctuating manner, that is, the water flow rate alternates between large and small. S2: When water flow rate is supplied alternately and clean water is introduced into the water chamber through the rubber hose, the large and small water flows alternately impact the sliding block in the water chamber. When the large flow of water impacts the sliding block, the impact force on the sliding block is greater than the compression force of the return spring. Therefore, the large flow of water flows out from the spray hole assembly on the side away from the fixed plate. When a small flow of water impacts the sliding block, the impact force on the sliding block is less than the compression force of the return spring. At this time, the sliding block blocks the water jet assembly that originally allowed the large flow of water to pass through under the action of the return spring. Then, the small flow of water will flow out from the water jet assembly on the side closer to the fixed plate. S3: When water flows through the conical hole, the diameter gradually narrows, which increases the flow velocity and the impact force of the water flow. The water with increased impact force then impacts the actuating plate on the roller in the roller groove after passing through the inclined hole. As the water flow alternates with the size of the flow, the water is alternately sprayed out through the spray hole assembly on both sides of the roller groove and drives the roller to roll back and forth. Since the roller abuts against the outer wall of the curved flue, it can drive the entire moving ring frame to move back and forth. S4: During the reciprocating movement of the moving ring frame, the scraper ring on the inner wall of the curved flue gas pipe also reciprocates along with the moving ring frame because the second magnet attracts the first magnet. The reciprocating motion of the scraper ring will continuously rub against the inner wall of the curved flue gas pipe, and the static electricity generated will attract the exhaust gas particles in the exhaust gas. Then, during the scraper ring's scraping process, the flue gas particles adsorbed on the inner wall of the curved flue gas pipe will be scraped off, thus cleaning the inner wall of the curved flue gas pipe in a timely manner and effectively improving the heat transfer efficiency. These exhaust gas particles reach the collecting pipe with the airflow and then fall into the gap between the two blocking rings in the collecting pipe, completing the collection of flue gas particles.

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