A device for early warning of flue gas exceeding standard in thermal power generation

Abstract

The application discloses a kind of fire power generation flue gas overproof early warning device, it is related to fire power generation technical field, including fixed frame, the fixed frame top is fixedly installed with purification tank, the purification tank top is fixedly installed with alarm, the purification tank top is fixedly installed with gas outlet pipe, the purification tank is fixedly installed with gas inlet pipe away from the side of fixed frame, the suction device is fixedly installed in gas outlet pipe bottom, the purification tank inner wall is fixedly installed with baffle, the purification device inner wall bottom is fixedly installed with motor, the output of motor is fixedly installed with rotating shaft, the rotating shaft rotation penetrates baffle, the fixed frame is fixedly installed in baffle bottom, when filter screen appears blockage or failure, pollutants in flue gas can not be effectively filtered, leading to overproof emission, can guarantee equipment continuously run in compliance emission range, avoid environmental protection accident or penalty caused by overproof emission.

Description

Technical Field

[0001] This invention relates to the field of thermal power generation technology, specifically to an early warning device for excessive flue gas emissions from thermal power plants. Background Technology

[0002] Thermal power generation is a method of generating electricity that utilizes the heat energy produced when combustible materials are burned, and converts it into electrical energy through a power generation device.

[0003] Patent publication number CN216537417U relates to the field of thermal power generation technology, including a mounting shell and a warning device body. The warning device body is inserted into the mounting shell. A touch screen and an alarm are fixedly installed on the left side of the warning device body, and fixing blocks are symmetrically fixed to the front and rear sides of the warning device body. After the warning device body and the mounting shell are inserted, pulling the pull head on the rotating plate causes the guide rod connected to the pull head to rotate on the insertion block. Pulling the guide rod causes the position block outside the guide rod to pass through the rotating plate and rotate, keeping the guide rod in a raised state. At the same time, the pull head compresses the first spring outside the guide rod through the insertion block. Then, rotating the rotating plate, when the insertion block falls above the fixing block, rotating the pull head causes the position block to pass through the rotating plate. The first spring returns to its original position, pushing the insertion block and fixing block to be inserted and fixed, thus making the installation of the warning device body more convenient.

[0004] The aforementioned patented push rod first spring reset pushes the plug and fixing block to be inserted and fixed, thus making the installation of the warning device body more convenient. However, if the filter screen is used for too long, the filter screen may become clogged and fail. When the filter screen becomes clogged or fails, pollutants in the flue gas may not be effectively filtered, resulting in excessive emissions. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an early warning device for excessive emissions from thermal power plants, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a thermal power plant flue gas exceeding standard early warning device, comprising a fixed frame, a purification tank fixedly installed on the top of the fixed frame, an alarm fixedly installed on the top of the purification tank, an exhaust pipe fixedly installed on the top of the purification tank, an intake pipe fixedly installed on the side of the purification tank away from the fixed frame, an air intake device fixedly installed at the bottom of the exhaust pipe, a partition fixedly installed on the inner wall of the purification tank, a motor fixedly installed at the bottom of the inner wall of the purification device, a rotating shaft fixedly installed at the output end of the motor, the rotating shaft rotating through the partition, a fixed frame fixedly installed at the bottom of the partition, and a replacement device provided on the inner wall of the purification tank;

[0007] The replacement device includes a filter screen, a frame, an arc-shaped baffle, an inclined block, and a square baffle. The frame is slidably installed on the inner wall of the purification tank, the filter screen is fixedly installed on the inner wall of the frame, the arc-shaped baffle is slidably installed on the inner wall of the purification tank, the inclined block is fixedly installed at the bottom of the arc-shaped baffle, and the square baffle is slidably installed on the inner wall of the purification tank.

[0008] According to the above technical solution, the replacement device further includes a sliding block, a connecting rod, a sliding block, a blocking block, a long rod, a rotating rod, and a rotating plate. The sliding block is slidably installed on the outer wall of the purification tank, the sliding block is slidably installed on the outer wall of the purification tank, one end of the connecting rod is rotatably installed on the side of the sliding block near the sliding block, the other end of the connecting rod is rotatably installed on the side of the sliding block near the sliding block, the blocking block is fixedly installed at the bottom of the sliding block, the long rod is fixedly installed on the side of the sliding block near the rotating shaft, the rotating rod is rotatably installed on the top of the filter screen, the top of the filter screen has a sliding groove, and the rotating plate is rotatably installed on the inner wall of the sliding groove. When the filter screen becomes clogged or fails, pollutants in the flue gas may not be effectively filtered, leading to excessive emissions. This device can ensure that the equipment continues to operate within the compliant emission range, avoiding environmental accidents or penalties caused by excessive emissions.

[0009] According to the above technical solution, a first spring is provided between the sliding block and the purification tank. The first spring is provided to drive the sliding block back to its original position. A second spring is provided between the sliding block and the purification tank. The second spring is provided to drive the sliding block back to its original position. The long rod slides through the purification tank. A third spring is provided between the arc-shaped baffle and the purification tank. The third spring is provided to drive the arc-shaped baffle to move. A fourth spring is provided between the square baffle and the purification tank. The fourth spring is provided to drive the square baffle to move.

[0010] According to the above technical solution, the inner wall of the purification tank is further provided with a scraping device for cleaning impurities and a collection device for cleaning concentrated impurities in one go. The scraping device includes a fixed rod, a clamping plate, a connecting rod, an upper scraper, and a lower scraper. The fixed rod is slidably installed on the inner wall of the purification tank, and the clamping plate is slidably installed on the inner wall of the fixed rod. One end of the connecting rod is rotatably installed on the side of the clamping plate near the arc-shaped baffle, and the other end of the connecting rod is rotatably installed on the side of the arc-shaped baffle near the clamping plate. The upper scraper is fixedly installed on the top of the clamping plate, and the lower scraper is fixedly installed on the bottom of the clamping plate. The lower scraper can effectively concentrate and collect impurities inside the device into one area, preventing impurities from spreading inside the equipment. This makes the cleaning work more efficient because it can directly clean the impurities in the concentrated area without cleaning each component individually, thus saving time and manpower.

[0011] According to the above technical solution, the scraping device further includes an inclined plate, a sliding arc plate, a pressure rod, and an opening and closing plate. The inclined plate is fixedly installed on the top of the lower scraper, the sliding arc plate is slidably installed on the inner wall of the purification tank, the top of the partition plate has a discharge trough, the opening and closing plate is rotatably installed on the inner wall of the discharge trough, and the pressure rod is fixedly installed on the side of the sliding arc plate near the opening and closing plate. When the scraper inside the device does not rotate with the rotating shaft, the dust or impurities inside will not be carried to other areas during the filter replacement process, avoiding the redistribution of pollutants. This helps to keep the inside of the device clean, prevents pollutants from floating inside the device, and avoids affecting subsequent operations.

[0012] According to the above technical solution, a No. 5 spring is provided between the fixed rod and the clamping plate. The No. 5 spring is provided to drive the clamping plate back to its original position. The side of the sliding arc plate near the inclined plate is set as an inclined surface. A No. 6 spring is provided between the sliding arc plate and the purification tank. The No. 6 spring is provided to drive the sliding arc plate back to its original position. A No. 1 torsion spring is provided between the opening and closing plate and the partition plate. The No. 1 torsion spring is provided to drive the opening and closing plate back to its original position.

[0013] According to the above technical solution, the collection device includes a short rod, a scraper, a striking rod, a drawer box, a push rod, a telescopic plate, a sliding plate, a rotating scraper, a rotating plate, and a rotating wheel. The scraper is slidably mounted on the top of the opening and closing plate, the short rod is fixedly mounted on the top of the scraper, the striking rod is rotatably mounted on the top of the scraper, the rotating wheel is rotatably mounted on the side of the scraper near the striking rod, the rotating plate is rotatably mounted on the circumferential surface of the striking rod's rotating shaft, the drawer box is slidably mounted on the inner wall of the fixed frame, the telescopic plate is rotatably mounted on the inner wall of the fixed frame, the push rod is fixedly mounted on the movable end of the telescopic plate, the sliding plate is slidably mounted on the bottom of the partition, one end of the rotating scraper is rotatably mounted on the side of the sliding plate near the telescopic plate, and the other end of the rotating scraper is rotatably mounted on the side of the telescopic plate near the sliding plate. The rotating scraper pushes temporarily stored impurities into the inner wall of the drawer box. When cleaning the inner wall of the drawer box, the telescopic plate temporarily stores impurities, preventing impurities from escaping or spreading to other parts of the equipment during the cleaning process. This effectively maintains a clean working environment, reduces the spread of pollution, and ensures that the cleaning process does not affect other components.

[0014] According to the above technical solution, a No. 2 torsion spring is provided between the telescopic plate and the fixed frame to drive the telescopic plate to rotate; a No. 7 spring is provided between the sliding plate and the partition to drive the sliding plate to move; a No. 3 torsion spring is provided between the sliding plate and the rotating scraper to drive the rotating scraper to rotate; a No. 8 spring is provided between the rotating scraper and the opening and closing plate to drive the scraper to move; and a No. 4 torsion spring is provided between the striking rod and the scraper rod to drive the striking rod to rotate.

[0015] This invention provides an early warning device for excessive emissions from thermal power plant flue gas. It has the following beneficial effects:

[0016] (1) In this invention, the filter screen can be quickly replaced by pressing the sliding block. By quickly replacing the filter screen, when the filter screen is clogged or fails, the pollutants in the flue gas may not be effectively filtered, resulting in excessive emissions. This can ensure that the equipment continues to operate within the compliant emission range and avoid environmental accidents or penalties caused by excessive emissions.

[0017] (2) In this invention, the rotation of the opening and closing plate will cause the impurities on the surface of the opening and closing plate to fall into the fixed frame for centralized collection. The lower scraper can effectively collect the impurities inside the device into one area, avoiding the spread of impurities inside the equipment. This makes the cleaning work more efficient because the impurities in the centralized area can be cleaned directly without cleaning each part individually, thus saving time and manpower.

[0018] (3) In this invention, the clamp cannot drive the upper and lower scrapers to clean the filter screen. When the scraper inside the device does not rotate with the shaft, the dust or impurities inside will not be carried to other areas during the filter screen replacement process, thus avoiding the redistribution of pollutants. This helps to keep the inside of the device clean, prevents pollutants from floating inside the device, and avoids affecting subsequent operations.

[0019] (4) In this invention, the striking rod will impact the opening and closing plate, causing impurities on the surface of the opening and closing plate to fall into the drawer. Collecting impurities in a concentrated manner can prevent them from entering the key components of the equipment, reducing the risk of component wear, blockage or other failures caused by impurities. This can improve the operational stability of the equipment and ensure that the system works reliably for a long time.

[0020] (5) In this invention, the rotating scraper will push the temporarily stored impurities into the inner wall of the drawer box. When cleaning the inner wall of the drawer box, the telescopic plate temporarily stores the impurities to prevent the impurities from escaping or spreading to other parts of the equipment during the cleaning process. This can effectively maintain the cleanliness of the working environment, reduce the spread of pollution, and ensure that the cleaning process will not affect other parts. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram showing the position and structure of the purification tank and partition of the present invention;

[0023] Figure 3 This is a schematic diagram of the position structure of the long rod and the rotating rod of the present invention;

[0024] Figure 4 For the present invention Figure 3 Enlarged structural diagram of section A;

[0025] Figure 5 This is a schematic diagram of the position structure of the sliding block and connecting rod of the present invention;

[0026] Figure 6 This is a schematic diagram of the position structure of the short rod and scraper rod of the present invention;

[0027] Figure 7 For the present invention Figure 6 Enlarged structural diagram of section B;

[0028] Figure 8 This is a schematic diagram of the position and structure of the push rod and telescopic plate of the present invention.

[0029] In the diagram: 1. Fixture; 2. Purification tank; 3. Alarm; 4. Exhaust pipe; 5. Inlet pipe; 6. Suction device; 7. Motor; 8. Rotating shaft; 9. Fixing frame; 10. Partition plate; 11. Filter screen; 12. Sliding block; 13. Connecting rod; 14. Sliding block; 15. Block; 16. Frame; 17. Long rod; 18. Rotating rod; 19. Rotating plate; 191. Arc-shaped baffle; 192. Inclined block; 1 93. Square baffle; 21. Fixed rod; 22. Clamping plate; 23. Connecting rod; 24. Upper scraper; 25. Lower scraper; 26. Sloping panel; 27. Sliding arc plate; 28. Pressure rod; 29. ​​Opening and closing plate; 31. Short rod; 32. Scraper rod; 33. Tapping rod; 34. Drawer box; 35. Push rod; 36. Telescopic plate; 37. Sliding plate; 38. Rotating scraper; 39. Rotating plate; 391. Rotating wheel. Detailed Implementation

[0030] 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.

[0031] Please see Figures 1-8 One embodiment of the present invention is: a thermal power plant flue gas exceeding standard early warning device, including a fixed frame 1, a purification tank 2 fixedly installed on the top of the fixed frame 1, an alarm 3 fixedly installed on the top of the purification tank 2, an exhaust pipe 4 fixedly installed on the top of the purification tank 2, an intake pipe 5 fixedly installed on the side of the purification tank 2 away from the fixed frame 1, an air intake device 6 fixedly installed at the bottom of the exhaust pipe 4, a partition 10 fixedly installed on the inner wall of the purification tank 2, a motor 7 fixedly installed at the bottom of the inner wall of the purification device, a rotating shaft 8 fixedly installed at the output end of the motor 7, the rotating shaft 8 rotating through the partition 10, a fixed frame 9 fixedly installed at the bottom of the partition 10, and a replacement device is also provided on the inner wall of the purification tank 2;

[0032] The replacement device includes a filter 11, a frame 16, an arc-shaped baffle 191, an inclined block 192, and a square baffle 193. The frame 16 is slidably installed on the inner wall of the purification tank 2, the filter 11 is fixedly installed on the inner wall of the frame 16, the arc-shaped baffle 191 is slidably installed on the inner wall of the purification tank 2, the inclined block 192 is fixedly installed at the bottom of the arc-shaped baffle 191, and the square baffle 193 is slidably installed on the inner wall of the purification tank 2.

[0033] The replacement device also includes a sliding block 12, a connecting rod 13, a sliding block 14, a blocking block 15, a long rod 17, a rotating rod 18, and a rotating plate 19. The sliding block 12 is slidably installed on the outer wall of the purification tank 2, the sliding block 14 is slidably installed on the outer wall of the purification tank 2, one end of the connecting rod 13 is rotatably installed on the side of the sliding block 14 near the sliding block 12, and the other end of the connecting rod 13 is rotatably installed on the side of the sliding block 12 near the sliding block 14. The blocking block 15 is fixedly installed at the bottom of the sliding block 14, the long rod 17 is fixedly installed on the side of the sliding block 14 near the rotating shaft 8, and the rotating rod 18 is rotatably installed on the top of the filter screen 11. The top of the filter screen 11 has a sliding groove, and the rotating plate 19 is rotatably installed on the inner wall of the sliding groove. When the filter screen 11 becomes clogged or fails, pollutants in the flue gas may not be effectively filtered, resulting in excessive emissions. This device can ensure that the equipment continues to operate within the compliant emission range and avoid environmental accidents or penalties caused by excessive emissions.

[0034] A first spring is provided between the sliding block 12 and the purification tank 2. The first spring is provided to drive the sliding block 12 back to its original position. A second spring is provided between the sliding block 14 and the purification tank 2. The second spring is provided to drive the sliding block 14 back to its original position. The long rod 17 slides through the purification tank 2. A third spring is provided between the arc-shaped baffle 191 and the purification tank 2. The third spring is provided to drive the arc-shaped baffle 191 to move. A fourth spring is provided between the square baffle 193 and the purification tank 2. The fourth spring is provided to drive the square baffle 193 to move.

[0035] In this embodiment, during operation: When using the device, first install the mounting bracket 1 at the flue gas emission location. After installation, the suction device 6 will activate, drawing the emitted gas into the purification tank 2 through the inlet pipe 5. When the concentration of harmful substances in the gas inside the purification tank 2 is high, the alarm 3 will sound, reminding personnel to inspect and maintain the purification device. After the gas enters the inner wall of the purification tank 2, it undergoes a certain degree of filtration. After filtration, the gas is discharged through the outlet pipe 4. The filter screen 11 will experience some damage after prolonged use, at which point it needs to be repaired. When replacing the filter 11, pressing the sliding block 12 downwards will cause the sliding block 12 to move. The movement of the sliding block 12 will push the connecting rod 13 to move, which in turn will push the sliding block 14 to move. The movement of the sliding block 14 will push the blocking block 15 to move, releasing the restriction on the retaining frame 16. The movement of the sliding block 14 will then drive the long rod 17 to move, which in turn will drive the rotating rod 18 to rotate. The rotation of the rotating rod 18 will then drive the rotating plate 19 to rotate. With the retaining frame 16 in place, it can be pulled to move. Moving the filter 11 will cause it to move as well. Pressing the sliding block 12 allows for quick replacement of the filter 11. By quickly replacing the filter 11, pollutants in the flue gas may not be effectively filtered when the filter 11 becomes clogged or malfunctions, leading to excessive emissions. This ensures that the equipment continues to operate within compliant emission limits, avoiding environmental accidents or penalties caused by excessive emissions. When the filter 11 is pulled out, it releases the obstruction of the arc-shaped baffle 191. The arc-shaped baffle 191 will then be driven by spring number three to slide towards the side closer to the sliding block 12. The baffle 191 seals the purification tank 2 when the filter 11 is replaced. The movement of the arc-shaped baffle 191 will drive the inclined block 192 to move. The movement of the inclined block 192 will release the limit on the square baffle 193. Then the square baffle 193 will be pulled by the fourth spring to seal the air intake pipe 5. If the air intake pipe 5 is not sealed during the replacement of the filter 11, dust, impurities and pollutants in the air may enter the system. These external pollutants may affect the operation of the equipment and reduce the efficiency of the equipment during or after the replacement of the filter 11.

[0036] Please see Figures 1-8Based on the above embodiments, in another embodiment of the present invention, the inner wall of the purification tank 2 is further provided with a scraping device for cleaning impurities and a collection device for cleaning concentrated impurities in one go. The scraping device includes a fixed rod 21, a clamping plate 22, a connecting rod 23, an upper scraper 24, and a lower scraper 25. The fixed rod 21 is slidably installed on the inner wall of the purification tank 2, the clamping plate 22 is slidably installed on the inner wall of the fixed rod 21, one end of the connecting rod 23 is rotatably installed on the side of the clamping plate 22 near the arc-shaped baffle 191, and the other end of the connecting rod 23 is rotatably installed on the side of the arc-shaped baffle 191 near the clamping plate 22. The upper scraper 24 is fixedly installed on the top of the clamping plate 22, and the lower scraper 25 is fixedly installed on the bottom of the clamping plate 22. The lower scraper 25 can effectively concentrate and collect impurities inside the device into one area, avoiding the spread of impurities inside the equipment. This makes the cleaning work more efficient because the impurities in the concentrated area can be cleaned directly without cleaning each component individually, thus saving time and manpower.

[0037] The scraping device also includes an inclined plate 26, a sliding arc plate 27, a pressure rod 28, and an opening and closing plate 29. The inclined plate 26 is fixedly installed on the top of the lower scraper 25, the sliding arc plate 27 is slidably installed on the inner wall of the purification tank 2, the top of the partition 10 has a discharge trough, the opening and closing plate 29 is rotatably installed on the inner wall of the discharge trough, and the pressure rod 28 is fixedly installed on the side of the sliding arc plate 27 near the opening and closing plate 29. When the scraper inside the device does not rotate with the rotating shaft 8, the dust or impurities inside will not be carried to other areas during the replacement of the filter screen 11, thus avoiding the redistribution of pollutants. This helps to keep the inside of the device clean, prevents pollutants from floating inside the device, and avoids affecting subsequent operations.

[0038] A No. 5 spring is provided between the fixed rod 21 and the clamping plate 22. The No. 5 spring is provided to drive the clamping plate 22 back to its original position. The side of the sliding arc plate 27 near the inclined plate 26 is set as an inclined surface. A No. 6 spring is provided between the sliding arc plate 27 and the purification tank 2. The No. 6 spring is provided to drive the sliding arc plate 27 back to its original position. A No. 1 torsion spring is provided between the opening and closing plate 29 and the partition plate 10. The No. 1 torsion spring is provided to drive the opening and closing plate 29 back to its original position.

[0039] The collection device includes a short rod 31, a scraper 32, a striking rod 33, a drawer 34, a push rod 35, a telescopic plate 36, a sliding plate 37, a rotating scraper 38, a rotating plate 39, and a rotating wheel 391. The scraper 32 is slidably mounted on the top of the opening and closing plate 29, the short rod 31 is fixedly mounted on the top of the scraper 32, the striking rod 33 is rotatably mounted on the top of the scraper 32, the rotating wheel 391 is rotatably mounted on the side of the scraper 32 near the striking rod 33, the rotating plate 39 is rotatably mounted on the circumferential surface of the rotating shaft of the striking rod 33, the drawer 34 is slidably mounted on the inner wall of the fixed frame 9, the telescopic plate 36 is rotatably mounted on the inner wall of the fixed frame 9, and the push rod 35 is fixedly mounted on... The movable end of the telescopic plate 36 and the sliding plate 37 are slidably installed at the bottom of the partition plate 10. One end of the rotating scraper 38 is rotatably installed on the side of the sliding plate 37 near the telescopic plate 36, and the other end of the rotating scraper 38 is rotatably installed on the side of the telescopic plate 36 near the sliding plate 37. The rotating scraper 38 will push the temporarily stored impurities into the inner wall of the drawer box 34. When cleaning the inner wall of the drawer box 34, the telescopic plate 36 temporarily stores the impurities to prevent the impurities from escaping or spreading to other parts of the equipment during the cleaning process. This can effectively maintain the cleanliness of the working environment, reduce the spread of pollution, and ensure that the cleaning process will not affect other parts.

[0040] A second torsion spring is provided between the telescopic plate 36 and the fixed frame 9. The second torsion spring is provided to drive the telescopic plate 36 to rotate. A seventh spring is provided between the sliding plate 37 and the partition plate 10. The seventh spring is provided to drive the sliding plate 37 to move. A third torsion spring is provided between the sliding plate 37 and the rotating scraper 38. The third torsion spring is provided to drive the rotating scraper 38 to rotate. A eighth spring is provided between the rotating scraper 38 and the opening and closing plate 29. The eighth spring is provided to drive the rotating scraper 38 to move. A fourth torsion spring is provided between the striking rod 33 and the scraper 32. The fourth torsion spring is provided to drive the striking rod 33 to rotate.

[0041] In this embodiment, during operation: the rotation of the rotating shaft 8 causes the clamping plate 22 to move, which in turn causes the upper scraper 24 and the lower scraper 25 to move. The upper scraper 24 scrapes the filter screen 11, and the scraped impurities fall onto the partition 10 for protection. The lower scraper 25 pushes the impurities on the surface of the partition 10 to the surface of the opening and closing plate 29. The movement of the lower scraper 25 causes the inclined plate 26 to move, which in turn pushes the sliding arc plate 27 to move. The sliding arc plate 27 presses the pressure rod 28 to move, which in turn pushes the opening and closing plate 29 to rotate. The rotation of the opening and closing plate 29 causes the impurities on its surface to fall into the fixed frame 9 for centralized collection. The lower scraper 25 effectively concentrates the impurities inside the device into one area, preventing impurities from spreading within the device. The internal distribution of the filter screen makes cleaning more efficient because it allows for direct cleaning of concentrated areas without the need to clean each component individually, saving time and manpower. The movement of the arc-shaped baffle 191 pulls the connecting rod 23, which in turn pulls the clamping plate 22 towards the fixed rod 21. This movement of the clamping plate 22 disengages it from the rotating shaft 8, preventing the shaft from rotating it and thus preventing the upper scraper 24 and lower scraper 25 from cleaning the filter screen 11. When the clamping plate 22 inside the device does not rotate with the shaft 8, the filter screen 11 is not replaced, preventing dust or impurities from being carried to other areas and avoiding redistribution of contaminants. This helps maintain the cleanliness of the device's interior, preventing contaminants from floating inside and affecting subsequent operations.

[0042] When the lower scraper 25 moves, it comes into contact with the short rod 31. The lower scraper 25 then pushes the short rod 31 towards the drawer 34. The movement of the short rod 31 causes the scraper 32 to slide. The sliding of the scraper 32 causes the rotating wheel 391 to rotate. The rotation of the rotating wheel 391 causes the rotating plate 39 to rotate. The rotation of the rotating plate 39 causes the striking rod 33 to rotate. After the striking rod 33 rotates to the moving position, the rotating wheel 391 loses its pushing force on the rotating plate 39. The striking rod 33 is then driven by the fourth torsion spring to rotate towards the opening and closing plate 29. The striking rod 33 then impacts the opening and closing plate 29, causing impurities on the surface of the opening and closing plate 29 to fall into the drawer 34. Collecting impurities in a concentrated manner can prevent them from entering the critical components of the equipment, reducing the risk of component wear, blockage, or other malfunctions caused by impurities. This can improve the operational stability of the equipment and ensure the long-term reliability of the system. When the drawer box 34 is pulled out to clean the impurities inside, the telescopic plate 36 rotates to the bottom of the discharge chute to temporarily store the impurities on the surface of the opening and closing plate 29. When the drawer box 34 is put back into the fixed frame 9, the drawer box 34 pushes the push rod 35 to move. The movement of the push rod 35 will drive the telescopic plate 36 to rotate. The rotation of the telescopic plate 36 will release the pressure on the rotating scraper 38. The rotating scraper 38 will then be driven by the No. 3 spring to rotate towards the discharge chute. The rotating scraper 38 will push the temporarily stored impurities into the inner wall of the drawer box 34. When cleaning the inner wall of the drawer box 34, the telescopic plate 36 temporarily stores the impurities to prevent them from escaping or spreading to other parts of the equipment during the cleaning process. This can effectively maintain the cleanliness of the working environment, reduce the spread of pollution, and ensure that the cleaning process will not affect other parts.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for early warning of excessive flue gas emissions from thermal power plants, comprising a mounting frame (1), characterized in that: A purification tank (2) is fixedly installed on the top of the fixed frame (1), an alarm (3) is fixedly installed on the top of the purification tank (2), an air outlet pipe (4) is fixedly installed on the top of the purification tank (2), an air inlet pipe (5) is fixedly installed on the side of the purification tank (2) away from the fixed frame (1), an air suction device (6) is fixedly installed at the bottom of the air outlet pipe (4), a partition (10) is fixedly installed on the inner wall of the purification tank (2), a motor (7) is fixedly installed at the bottom of the inner wall of the purification tank (2), a rotating shaft (8) is fixedly installed at the output end of the motor (7), the rotating shaft (8) rotates through the partition (10), a fixed frame (9) is fixedly installed at the bottom of the partition (10), and a replacement device is also provided on the inner wall of the purification tank (2). The replacement device includes a filter screen (11), a frame (16), an arc-shaped baffle (191), an inclined block (192), and a square baffle (193). The frame (16) is slidably installed on the inner wall of the purification tank (2). The filter screen (11) is fixedly installed on the inner wall of the frame (16). The arc-shaped baffle (191) is slidably installed on the inner wall of the purification tank (2). The inclined block (192) is fixedly installed at the bottom of the arc-shaped baffle (191). The square baffle (193) is slidably installed on the inner wall of the purification tank (2). The replacement device also includes a sliding block (12), a connecting rod (13), a sliding block (14), a blocking block (15), a long rod (17), a rotating rod (18), and a rotating plate (19). The sliding block (12) is slidably installed on the outer wall of the purification tank (2). The sliding block (14) is slidably installed on the outer wall of the purification tank (2). One end of the connecting rod (13) is rotatably installed on the side of the sliding block (14) near the sliding block (12). The other end of the connecting rod (13) is rotatably installed on the side of the sliding block (12) near the sliding block (14). The blocking block (15) is fixedly installed at the bottom of the sliding block (14). The long rod (17) is fixedly installed on the side of the sliding block (14) near the rotating shaft (8). The rotating rod (18) is rotatably installed on the top of the filter screen (11). A sliding groove is provided on the top of the filter screen (11). The rotating plate (19) is rotatably installed on the inner wall of the sliding groove. The inner wall of the purification tank (2) is also provided with a scraping device for cleaning impurities and a collection device for cleaning the concentrated impurities in one go. The scraping device includes a fixed rod (21), a clamping plate (22), a connecting rod (23), an upper scraper (24), and a lower scraper (25). The fixed rod (21) is slidably installed on the inner wall of the purification tank (2). The clamping plate (22) is slidably installed on the inner wall of the fixed rod (21). One end of the connecting rod (23) is rotatably installed on the side of the clamping plate (22) near the arc-shaped baffle (191). The other end of the connecting rod (23) is rotatably installed on the side of the arc-shaped baffle (191) near the clamping plate (22). The upper scraper (24) is fixedly installed on the top of the clamping plate (22). The lower scraper (25) is fixedly installed on the bottom of the clamping plate (22). The scraping device also includes an inclined plate (26), a sliding arc plate (27), a pressure rod (28), and an opening and closing plate (29). The inclined plate (26) is fixedly installed on the top of the lower scraper (25). The sliding arc plate (27) is slidably installed on the inner wall of the purification tank (2). The top of the partition plate (10) is provided with a discharge trough. The opening and closing plate (29) is rotatably installed on the inner wall of the discharge trough. The pressure rod (28) is fixedly installed on the side of the sliding arc plate (27) near the opening and closing plate (29).

2. The early warning device for excessive flue gas emissions from thermal power plants according to claim 1, characterized in that: A first spring is provided between the sliding block (12) and the purification tank (2), a second spring is provided between the sliding block (14) and the purification tank (2), the long rod (17) slides through the purification tank (2), a third spring is provided between the arc-shaped baffle (191) and the purification tank (2), and a fourth spring is provided between the square baffle (193) and the purification tank (2).

3. The early warning device for excessive flue gas emissions from thermal power plants according to claim 2, characterized in that: A No. 5 spring is provided between the fixed rod (21) and the clamping plate (22), the side of the sliding arc plate (27) near the inclined plate (26) is set as an inclined surface, a No. 6 spring is provided between the sliding arc plate (27) and the purification tank (2), and a No. 1 torsion spring is provided between the opening and closing plate (29) and the partition plate (10).

4. The early warning device for excessive flue gas emissions from thermal power plants according to claim 3, characterized in that: The collecting device includes a short rod (31), a scraper (32), a striking rod (33), a drawer (34), a push rod (35), a telescopic plate (36), a sliding plate (37), a rotating scraper (38), a rotating plate (39), and a rotating wheel (391). The scraper (32) is slidably mounted on the top of the opening and closing plate (29). The short rod (31) is fixedly mounted on the top of the scraper (32). The striking rod (33) is rotatably mounted on the top of the scraper (32). The rotating wheel (391) is rotatably mounted on the side of the scraper (32) near the striking rod (33). The rotating plate... (39) Rotatably mounted on the circumferential surface of the rotating shaft of the striking rod (33), the drawer (34) is slidably mounted on the inner wall of the fixed frame (9), the telescopic plate (36) is rotatably mounted on the inner wall of the fixed frame (9), the push rod (35) is fixedly mounted on the movable end of the telescopic plate (36), the sliding plate (37) is slidably mounted on the bottom of the partition (10), one end of the rotating scraper (38) is rotatably mounted on the side of the sliding plate (37) near the telescopic plate (36), and the other end of the rotating scraper (38) is rotatably mounted on the side of the telescopic plate (36) near the sliding plate (37).

5. The early warning device for excessive flue gas emissions from thermal power plants according to claim 4, characterized in that: A second torsion spring is provided between the telescopic plate (36) and the fixed frame (9), a seventh spring is provided between the sliding plate (37) and the partition (10), a third torsion spring is provided between the sliding plate (37) and the rotating scraper (38), an eighth spring is provided between the rotating scraper (38) and the opening and closing plate (29), and a fourth torsion spring is provided between the striking rod (33) and the scraper (32).

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