Power plant oxygen supply detection and purification device

Abstract

The application relates to the technical field of air purification, and in particular to a power plant oxygen supply detection and control device, which comprises an oxygen generator, an oxygen detector, a purification box provided with an air inlet pipe and an air outlet pipe, an air pump arranged on the air outlet pipe, an activated carbon plate arranged in the purification box and located below the air inlet pipe and above the air outlet pipe, and a plurality of partition plates arranged between the activated carbon plate and the air outlet pipe from top to bottom; all the partition plates and the inner wall of the purification box jointly form a snakelike cavity, two ends of the snakelike cavity are located at the activated carbon plate and the air outlet pipe respectively, the snakelike cavity comprises a plurality of arc-shaped cavities arranged in sequence from inside to outside and located on the same axis, a spraying plate is arranged at the top of each arc-shaped cavity, a plurality of spray heads for spraying purification liquid are arranged on the spraying plate, and the projection of the movement track of the purification liquid in the arc-shaped cavity on a vertical plane is coaxially arranged with the arc-shaped cavity. The application can supplement oxygen into a workshop in time and improve the purification effect of waste gas.

Description

Technical Field

[0001] This application relates to the technical field of air purification, and in particular to oxygen supply detection and purification devices for power plants. Background Technology

[0002] Power plants typically generate electricity by incinerating municipal solid waste. During the fermentation and incineration process, municipal solid waste produces waste gas and dust, which consume oxygen. The consumption of oxygen and the release of waste gas and dust can affect the health of workers in the workshop. Therefore, it is necessary to purify the air in the workshop and replenish oxygen in a timely manner.

[0003] The current purification method is to treat the waste gas in the workshop by using activated carbon plates for adsorption or spray dust removal, and to supplement the oxygen in the workshop by using fans or oxygen generators, thereby achieving the purpose of purification and oxygen supplementation.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: activated carbon plates have limited adsorption capacity and types of harmful substances in waste gas, resulting in poor purification effects; the contact time between the spray and waste gas in spray dust removal is short, making it impossible to effectively achieve dust reduction and reaction purification, thus requiring improvement. Summary of the Invention

[0005] In order to replenish oxygen in the workshop in a timely manner and improve the purification effect of exhaust gas, this application provides an oxygen supply detection and purification device for power plants.

[0006] The oxygen supply detection and purification device for power plants provided in this application adopts the following technical solution: the oxygen supply detection and purification device for power plants includes an oxygen generator, an oxygen detector, a purification box with an inlet pipe and an outlet pipe, an air pump on the outlet pipe, and an activated carbon plate located below the inlet pipe and above the outlet pipe in the purification box, and several partitions arranged from top to bottom between the activated carbon plate and the outlet pipe. All the partitions and the inner wall of the purification chamber together form a serpentine cavity. The two ends of the serpentine cavity are located at the activated carbon plate and the air outlet pipe, respectively. The serpentine cavity includes several arc-shaped cavities arranged sequentially from the inside to the outside and located on the same axis. A spray plate is provided at the top of the arc-shaped cavity, and a spray head for spraying the purification liquid is provided on the spray plate. The projection of the movement trajectory of the purification liquid in the arc-shaped cavity onto the vertical plane is arranged coaxially with the arc-shaped cavity.

[0007] Optionally, the activated carbon plate is arc-shaped with both ends curving upwards and the middle concave. Both ends of the activated carbon plate are spaced apart from the inner wall of the purification box. A dust collection box is provided between the end of the activated carbon plate and the inner wall of the purification box. The top of the dust collection box is open and located at the end of the activated carbon plate. The purification box is equipped with a cleaning unit for cleaning the dust on the activated carbon plate into the dust collection box. The bottom of the dust collection box is provided with a dust outlet that runs through the purification box. An opening and closing door is provided at the dust outlet.

[0008] Optionally, the cleaning unit includes a rotating shaft coaxial with the activated carbon plate. The rotating shaft is rotatably connected to the purification box around its own axis. One end of the rotating shaft is connected to a scraper that rotates and abuts against the upper surface of the activated carbon plate via a connecting rod. The other end of the rotating shaft extends out of the purification box and is fixedly fitted with a gear. A rack meshes with the gear. The rack slides along its own length and is connected to the purification box. The purification box is equipped with a drive motor. A reciprocating screw is coaxially connected to the output shaft of the drive motor. The reciprocating screw is threaded into the rack, and the length directions of the reciprocating screw and the rack are the same.

[0009] Optionally, the dust collection box is provided with an opening and closing unit, which includes an upper door panel and a lower door panel that are arranged sequentially from top to bottom and slide through the purification box. The upper door panel is connected to the lower door panel by a pull rope. The upper door panel is connected to the purification box by a first spring. The lower door panel is connected to the purification box by a second spring. The upper door panel is provided with a push rod for the scraper to move. When the first spring is in its natural state, the upper door panel will be closed at the top opening of the dust collection box, and the lower door panel will be pulled away from the inside of the dust collection box by the pull rope. At this time, the second spring will be in a deformed state. When the scraper pushes the upper door panel to start to separate from the top opening of the dust collection box through the push rod, the second spring will return to its natural state and cause the lower door panel to block the inside of the dust collection box.

[0010] Optionally, the bottom of the partition located at the lowest side is connected to the bottom of the purification box via a connecting plate. The side of the connecting plate facing the air outlet pipe and the inner wall of the purification box together form a drying chamber. The drying chamber is filled with desiccant particles, and the serpentine chamber is connected to the air outlet pipe through the drying chamber.

[0011] Optionally, the connecting plate on the side opposite to the air outlet pipe and the inner wall of the purification box together form a liquid storage chamber. The liquid storage chamber is connected to all the bends at the bottom of the serpentine cavity. The purification box is provided with an overflow pipe at the same height as the bends at the bottom of the serpentine cavity, and the overflow pipe is connected to the liquid storage chamber.

[0012] Optionally, the purification box is provided with a driving unit for driving the spray plate to move in the arc-shaped cavity. The driving unit includes two hydraulic cylinders located on both sides of the purification box. The piston rod of the hydraulic cylinder extends along the length direction of the arc-shaped cavity and is connected to a push plate for pushing the spray plate to move. The spray plate is located between the two push plates and slides along the length direction of the arc-shaped cavity to be connected to the purification box.

[0013] Optionally, the bottom of the purification box is open and has a base plate. The base plate can be flipped in the vertical plane and rotated to the bottom of the connecting plate via a horizontal axis. The purification box is equipped with a geared motor, and the output shaft of the geared motor is coaxially connected to the horizontal axis.

[0014] Optionally, the arc-shaped cavity is provided with a limiting rod and a rotating rod extending along the length of the arc-shaped cavity. Both the limiting rod and the rotating rod are slidably inserted through the spray plate. The spray plate can rotate around the axis of the rotating rod. The purification box is provided with a guide groove for the sliding engagement of the limiting rod. The guide groove is arc-shaped and coaxial with the rotating rod. The limiting rod is connected to the bottom plate by a connecting rope and to the guide groove by a third spring. During the flipping process, the bottom plate can pull the limiting rod to slide on the guide groove by the connecting rope.

[0015] In summary, this application includes the following beneficial technical effects: 1. When the oxygen detector detects that the oxygen content in the workshop is lower than the preset value, the oxygen detector will send an oxygen replenishment signal to the processor. The processor will then control the oxygen generator and air pump to start, so as to replenish the oxygen in the workshop in a timely manner and purify the exhaust gas in the workshop in a timely manner. 2. When the drive motor starts, the drive motor will drive the rack to reciprocate through the reciprocating screw. The rack will drive the scraper to swing back and forth on the upper surface of the activated carbon plate through the gear, rotating shaft and connecting rod, so that the scraper scrapes the dust on the activated carbon plate into the dust collection box for collection. 3. The upper and lower door panels must always be closed at the same time to prevent dust in the dust collection box from drifting back into the purification chamber; 4. The exhaust gas passing through the activated carbon plate will enter the serpentine cavity and move in a serpentine manner. The mist-like purification liquid will not easily accumulate on the cavity wall of the arc-shaped cavity. That is, the purification liquid will be able to fully contact the exhaust gas, which increases the contact area and contact time between the purification liquid and the exhaust gas, thereby improving the purification effect of the exhaust gas. 5. When the hydraulic cylinder is started, it will drive the spray plate to reciprocate along the length of the arc-shaped cavity via the push plate. This causes the mist-like purification liquid sprayed from the spray head to also be arranged in a serpentine pattern on the horizontal plane. Therefore, when the mist-like purification liquid moves in the arc-shaped cavity, it will disturb the air in the arc-shaped cavity, causing the exhaust gas to swing left and right as it moves in an arc within the cavity. This intensifies the collision between the exhaust gas and the mist-like purification liquid, thereby improving the purification effect on the exhaust gas. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application; Figure 2 This is a cross-sectional view of the purification box in the embodiments of this application; Figure 3 This is a cross-sectional view of the upper part of the purification box in an embodiment of this application; Figure 4 This is a cross-sectional view of the lower part of the purification box in an embodiment of this application.

[0017] Attached reference numerals: 1. Purification chamber; 11. Inlet pipe; 12. Outlet pipe; 13. Air pump; 14. Activated carbon plate; 15. Partition plate; 16. Connecting plate; 17. Drying chamber; 18. Liquid storage chamber; 19. Overflow pipe; 2. Oxygen generator; 21. Oxygen detector; 22. Processor; 3. Dust collection box; 31. Dust outlet; 32. Opening and closing door; 33. Fastener; 4. Cleaning unit; 41. Rotating shaft; 42. Connecting rod; 43. Scraper; 44. Gear; 45. Rack; 46. Drive motor; 47. Reciprocating screw; 5. Opening and closing unit; 51. Upper door panel; 52. Lower door panel; 53. Pull rope; 54. First spring; 55. Second spring; 56. Push rod; 57. First guide wheel; 6. Serpentine cavity; 61. Arc cavity; 62. Spray plate; 63. Spray head; 64. Liquid inlet pipe; 65. Limiting rod; 66. Rotating rod; 67. Second guide wheel; 68. Guide groove; 69. Third spring; 7. Drive unit; 71. Hydraulic cylinder; 72. Push plate; 8. Base plate; 81. Horizontal shaft; 82. Gear motor; 83. Connecting rope. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0019] This application discloses an oxygen supply detection and purification device for power plants. For example... Figure 1 and Figure 2 As shown, the oxygen supply detection and purification device for the power plant includes a purification chamber 1 with an inlet pipe 11 and an outlet pipe 12. An oxygen generator 2, an oxygen detector 21, and a processor 22 are installed on the top of the purification chamber 1. Both the oxygen generator 2 and the oxygen detector 21 are coupled to the processor 22. When the oxygen detector 21 detects that the oxygen content in the workshop is lower than a preset value, the oxygen detector 21 will send an oxygen replenishment signal to the processor 22. The processor 22 will then control the oxygen generator 2 to turn on, thereby replenishing oxygen to the workshop in a timely manner.

[0020] An air pump 13 is installed on the exhaust pipe 12 and is coupled to the processor 22. An activated carbon plate 14 is installed inside the purification box 1, located below the inlet pipe 11 and above the exhaust pipe 12. After receiving an oxygen replenishment signal, the processor 22 will control the air pump 13 to start. The air pump 13 will draw the waste gas from the workshop through the purification box 1 and the inlet pipe 11. The activated carbon plate 14 will purify and adsorb the waste gas. The exhaust pipe 12 will discharge the purified waste gas outside the workshop.

[0021] The activated carbon plate 14 is designed in an arc shape with both ends curving upwards and the middle concave. Therefore, the dust blocked by the activated carbon plate 14 will accumulate in the center of the upper surface of the activated carbon plate 14, so as to avoid the upper surface of the activated carbon plate 14 being completely blocked.

[0022] like Figure 2 and Figure 3As shown, both ends of the activated carbon plate 14 are spaced apart from the inner wall of the purification box 1. A dust collection box 3 is provided between the end of the activated carbon plate 14 and the inner wall of the purification box 1. The dust collection box 3 is installed on the inner wall of the purification box 1. The top of the dust collection box 3 is open and located at the end of the activated carbon plate 14. The bottom of the dust collection box 3 is provided with a dust outlet 31 that penetrates the purification box 1. An opening and closing door 32 is rotatably connected to the dust outlet 31. The opening and closing door 32 is locked and fixed to the purification box 1 by a buckle 33.

[0023] The purification chamber 1 is equipped with a cleaning unit 4. The cleaning unit 4 includes a rotating shaft 41 arranged coaxially with the activated carbon plate 14. The rotating shaft 41 is rotatably connected to the purification chamber 1 around its own axis. One end of the rotating shaft 41 is connected to a scraper 43 that rotates and abuts against the upper surface of the activated carbon plate 14 via a connecting rod 42. The other end of the rotating shaft 41 extends out of the purification chamber 1 and is fixedly fitted with a gear 44. A rack 45 meshes with the gear 44. The rack 45 slides along its own length direction and is connected to the purification chamber 1. A drive motor 46 is installed on the outer wall of the purification chamber 1. A reciprocating screw 47 is coaxially connected to the output shaft of the drive motor 46. The reciprocating screw 47 is threaded into the rack 45, and the length directions of the reciprocating screw 47 and the rack 45 are the same.

[0024] When the drive motor 46 starts, it will drive the reciprocating screw 47 to rotate. The reciprocating screw 47 will drive the rack 45 to reciprocate along its own length. The rack 45 will drive the gear 44 to rotate back and forth. The gear 44 will drive the scraper 43 to swing back and forth on the upper surface of the activated carbon plate 14 through the rotating shaft 41 and the connecting rod 42. The scraper 43 will scrape the dust on the activated carbon plate 14 into the dust collection box 3 for collection.

[0025] The dust collection box 3 is equipped with an opening and closing unit 5. The opening and closing unit 5 includes an upper door panel 51 and a lower door panel 52 that are arranged from top to bottom and slide through the purification box 1. One end of the upper door panel 51 extending out of the purification box 1 is connected to the other end of the lower door panel 52 extending out of the purification box 1 by a pull rope 53. A first guide wheel 57 is rotatably connected to the purification box 1 for the pull rope 53 to pass around. One end of the upper door panel 51 extending out of the purification box 1 is connected to the purification box 1 by a first spring 54. One end of the lower door panel 52 extending out of the purification box 1 is connected to the purification box 1 by a second spring 55. A push rod 56 for the scraper 43 to push the upper surface of the upper door panel 51 is installed.

[0026] When the scraper 43 does not push the push rod 56, the first spring 54 will be in its natural state, and the upper door panel 51 will be closed at the top opening of the dust collection box 3, making it difficult for the dust in the dust collection box 3 to drift back into the purification chamber 1; the upper door panel 51 also pulls the lower door panel 52 away from the inside of the dust collection box 3 through the pull rope 53. At this time, the second spring 55 will be in a deformed state, and the dust in the dust collection box 3 will accumulate at the dust outlet 31 at the bottom of the dust collection box 3. Workers can discharge the dust in the dust collection box 3 by opening and closing the door 32.

[0027] When the scraper 43 pushes the upper door panel 51 through the push rod 56, the upper door panel 51 will gradually move away from the inside of the purification box 1. At this time, the upper door panel 51 is still closed at the top opening of the dust collection box 3, and the pull rope 53 will no longer tighten the lower door panel 52. The second spring 55 will gradually return to its natural state and cause the lower door panel 52 to gradually extend into the dust collection box 3. When the upper door panel 51 begins to separate from the top opening of the dust collection box 3, the second spring 55 will have returned to its natural state, and the lower door panel 52 will block the inside of the dust collection box 3. At this time, the scraper 43 can scrape the dust on the upper surface of the activated carbon plate 14 into the dust collection box 3, and this part of the dust will accumulate on the upper surface of the lower door panel 52. Due to the obstruction of the lower door panel 52, the dust at the bottom of the dust collection box 3 will not drift back into the purification box 1.

[0028] After the scraper 43 disengages from the push rod 56, the first spring 54 will gradually return to its natural state and cause the upper door panel 51 to move and close the top opening of the dust collection box 3. The upper door panel 51 will pull the lower door panel 52 through the pull rope 53 to move and disengage from the inside of the dust collection box 3, so that the dust on the lower door panel 52 falls to the bottom of the dust collection box 3 for cleaning of the dust inside the dust collection box 3.

[0029] like Figure 2 and Figure 4 As shown, several partitions 15 are arranged sequentially from top to bottom between the activated carbon plate 14 and the air outlet pipe 12. All partitions 15 and the inner wall of the purification box 1 together form a serpentine cavity 6. The two ends of the serpentine cavity 6 are located at the activated carbon plate 14 and the air outlet pipe 12, respectively. The serpentine cavity 6 includes several arc-shaped cavities 61 arranged sequentially from the inside to the outside and located on the same axis. A spray plate 62 is provided at the top of the arc-shaped cavity 61. An inlet pipe 64 and several spray nozzles 63 for spraying purification liquid are installed on the spray plate 62. The inlet pipe 64 slides through the purification box 1.

[0030] The exhaust gas passing through the activated carbon plate 14 will enter the serpentine cavity 6 and move in a serpentine motion. The external purification liquid will enter the spray plate 62 through the liquid inlet pipe 64. The purification liquid inside the spray plate 62 will be sprayed out into the arc-shaped cavity 61 through the spray head 63. Because the projection of the movement trajectory of the purification liquid in the arc-shaped cavity 61 onto the vertical plane is set coaxially with the arc-shaped cavity 61, the mist-like purification liquid will not easily accumulate on the cavity wall of the arc-shaped cavity 61. That is, the purification liquid can fully contact the exhaust gas, thereby achieving dust reduction and reaction purification of the exhaust gas. The setting of the serpentine cavity 6 increases the contact area and contact time between the purification liquid and the exhaust gas, thereby improving the purification effect of the exhaust gas.

[0031] The purification chamber 1 is equipped with a drive unit 7, which includes two hydraulic cylinders 71 located on both sides of the purification chamber 1. The piston rod of the hydraulic cylinder 71 extends along the length of the arc cavity 61 and is connected to a push plate 72. The spray plate 62 is located between the two push plates 72 and slides along the length of the arc cavity 61 to be connected to the purification chamber 1.

[0032] When the hydraulic cylinder 71 is started, it will push the spray plate 62 to reciprocate along the length of the arc-shaped cavity 61 through the push plate 72. This causes the mist-like purification liquid sprayed by the spray head 63 to also be arranged in a serpentine pattern on the horizontal plane. Therefore, when the mist-like purification liquid moves in the arc-shaped cavity 61, it will disturb the air in the arc-shaped cavity 61, causing the exhaust gas to swing left and right when it moves in an arc shape in the arc-shaped cavity 61. This intensifies the collision between the exhaust gas and the mist-like purification liquid, thereby improving the purification effect on the exhaust gas.

[0033] It is worth noting that the drive motor 46 and the hydraulic cylinder 71 are both coupled to the processor 22. After receiving the oxygen replenishment signal, the processor 22 will control the drive motor 46 and the hydraulic cylinder 71 to start, so as to purify and clean the exhaust gas.

[0034] The bottom of the partition 15 located at the lowest side is connected to the bottom of the purification chamber 1 via a connecting plate 16. The side of the connecting plate 16 facing the exhaust pipe 12, together with the inner wall of the purification chamber 1, forms a drying chamber 17. The drying chamber 17 is filled with desiccant particles. The serpentine chamber 6 is connected to the exhaust pipe 12 through the drying chamber 17. The exhaust gas passing through the serpentine chamber 6 will enter the drying chamber 17, so that the moisture in the exhaust gas will be absorbed. The purified and desiccant exhaust gas will be discharged through the exhaust pipe 12.

[0035] It is worth noting that the desiccant particles in the drying chamber 17 can be placed in individual mesh bags to prevent them from being sucked into the air outlet pipe 12.

[0036] The connecting plate 16, located away from the exhaust pipe 12, together with the inner wall of the purification box 1, forms a liquid storage chamber 18. The liquid storage chamber 18 is connected to all the bends at the bottom of the serpentine cavity 6. Therefore, the mist-like purification liquid mixed with dust will fall into the liquid storage chamber 18 for storage. When the exhaust gas in the serpentine cavity 6 moves to the bend at the bottom of the serpentine cavity 6, it will collide with the purification liquid in the liquid storage chamber 18, thereby further improving the purification effect of the exhaust gas.

[0037] An overflow pipe 19 is installed on the purification box 1 at the same height as the lower bend of the serpentine cavity 6. The overflow pipe 19 is connected to the liquid storage cavity 18, so that the liquid level in the liquid storage cavity 18 is kept at a specified height, so as to prevent the liquid level in the liquid storage cavity 18 from being too high and causing the exhaust gas to be unable to flow normally in the serpentine cavity 6.

[0038] The bottom of the purification box 1 is open and has a base plate 8. The base plate 8 can be flipped on the vertical plane and is rotatably connected to the bottom of the connecting plate 16 via a horizontal shaft 81. A geared motor 82 is installed on the outer wall of the purification box 1, and the output shaft of the geared motor 82 is coaxially connected to the horizontal shaft 81.

[0039] When the geared motor 82 drives the base plate 8 to rotate, causing the end of the base plate 8 facing the overflow pipe 19 to flip downwards, the bottom of the liquid storage chamber 18 will open, allowing the purified liquid mixed with dust in the liquid storage chamber 18 to be directly discharged; when the geared motor 82 drives the base plate 8 to rotate, causing the end of the base plate 8 facing the air outlet pipe 12 to flip downwards, the bottom of the drying chamber 17 will open, allowing the dehumidified particles in the drying chamber 17 to be directly discharged.

[0040] The arc-shaped cavity 61 is provided with a limiting rod 65 and a rotating rod 66 extending along the length of the arc-shaped cavity 61. Both the limiting rod 65 and the rotating rod 66 are slidably inserted through the spray plate 62. The spray plate 62 can rotate around the axis of the rotating rod 66. The purification box 1 is provided with a guide groove 68 for the limiting rod 65 to slide. The guide groove 68 is arc-shaped and coaxial with the rotating rod 66. The limiting rod 65 is located at the bottom of the spray plate 62 and is connected to the upper surface of the base plate 8 through a connecting rope 83. A second guide wheel 67 is rotatably connected to the purification box 1 for the connecting rope 83 to pass around. The limiting rod 65 is connected to the guide groove 68 through a third spring 69.

[0041] When the bottom plate 8 flips downward toward the overflow pipe 19, the bottom plate 8 will pull the limiting rod 65 to slide on the guide groove 68 through the connecting rope 83. The limiting rod 65 will drive the bottom of the spray plate 62 to flip and approach the overflow pipe 19. The mist-like purification liquid sprayed from the spray head 63 will be sprayed onto the top cavity wall of the arc cavity 61 and quickly converge to achieve the flushing of the top cavity wall of the arc cavity 61.

[0042] When the bottom plate 8 flips downward toward the end facing the air outlet pipe 12, the third spring 69 will gradually return to its natural state and cause the limiting rod 65 to slide on the guide groove 68. The limiting rod 65 will drive the bottom of the spray plate 62 to flip and approach the air outlet pipe 12. The mist-like purification liquid sprayed from the spray head 63 will be sprayed onto the bottom cavity wall of the arc-shaped cavity 61 and quickly converge to achieve rinsing of the bottom cavity wall of the arc-shaped cavity 61.

[0043] The implementation principle of the oxygen supply detection and purification device for power plants in this application embodiment is as follows: When the oxygen detector 21 detects that the oxygen content in the workshop is lower than the preset value, the oxygen detector 21 will send an oxygen replenishment signal to the processor 22. The processor 22 will control the oxygen generator 2, the air pump 13, the drive motor 46 and the hydraulic cylinder 71 to start. The oxygen generator 2 will replenish oxygen in the workshop in time. The air pump 13 will draw the waste gas from the workshop through the purification box 1 and the air inlet pipe 11. The activated carbon plate 14 will purify and adsorb the waste gas. The purification liquid will be sprayed from the spray head 63 to reduce dust and purify the waste gas. The dehumidifying particles will dehumidify the waste gas. The air outlet pipe 12 will discharge the purified and dehumidified waste gas outside the workshop.

[0044] The drive motor 46 drives the rack 45 to reciprocate via the reciprocating screw 47. The rack 45 drives the scraper 43 to swing back and forth on the upper surface of the activated carbon plate 14 via the gear 44, the rotating shaft 41, and the connecting rod 42. The scraper 43 scrapes the dust on the activated carbon plate 14 towards the dust collection box 3. The scraper 43 pushes the upper door panel 51 to move away from the top opening of the dust collection box 3 via the push rod 56. The lower door panel 52 separates the inside of the dust collection box 3, and the dust is scraped into the dust collection box 3 and accumulates on the upper surface of the lower door panel 52. Then the scraper 43 disengages from the push rod 56, the upper door panel 51 moves to close the top opening of the dust collection box 3, and the lower door panel 52 moves away from the inside of the dust collection box 3. The dust on the lower door panel 52 falls to the bottom of the dust collection box 3. Workers clean the dust in the dust collection box 3 by opening and closing the door 32.

[0045] The hydraulic cylinder 71 drives the spray plate 62 to reciprocate through the push plate 72, so that the mist-like purification liquid sprayed by the spray head 63 is also arranged in a serpentine pattern on the horizontal plane. Therefore, when the mist-like purification liquid moves in the arc-shaped cavity 61, it will disturb the air in the arc-shaped cavity 61, causing the exhaust gas to swing left and right when it moves in an arc shape in the arc-shaped cavity 61. This intensifies the collision between the exhaust gas and the mist-like purification liquid, and increases the contact area and contact time between the exhaust gas and the mist purifier, thereby improving the purification effect of the exhaust gas.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A power plant oxygen supply detection and purification device, characterized in that: The purification box (1) includes an oxygen generator (2), an oxygen detector (21), and an air inlet pipe (11) and an outlet pipe (12). The oxygen generator (2) and the oxygen detector (21) are installed on the top of the purification box (1). An air pump (13) is installed on the outlet pipe (12). The purification box (1) contains an activated carbon plate (14) located below the inlet pipe (11) and above the outlet pipe (12), and several partitions (15) arranged from top to bottom between the activated carbon plate (14) and the outlet pipe (12). All the partitions (15) together with the inner wall of the purification box (1) form a serpentine cavity (6). The two ends of the serpentine cavity (6) are located at the activated carbon plate (14) and the air outlet (12), respectively. The serpentine cavity (6) includes several arc-shaped cavities (61) arranged sequentially from the inside to the outside and located on the same axis. The top of the arc-shaped cavity (61) is provided with a spray plate (62), and the spray plate (62) is provided with a spray head (63) for spraying the purification liquid. The purification box (1) is provided with a driving unit (7) for driving the spray plate (62) to move in the arc cavity (61). The driving unit (7) includes two hydraulic cylinders (71) respectively located on both sides of the purification box (1). The piston rod of the hydraulic cylinder (71) extends along the length direction of the arc cavity (61) and is connected to a push plate (72) for pushing the spray plate (62) to move. The spray plate (62) is located between the two push plates (72) and is slidably connected to the purification box (1) along the length direction of the arc cavity (61). The bottom of the purification box (1) is open and has a base plate (8). The base plate (8) can be flipped on the vertical plane and rotated to the bottom of the connecting plate (16) via a horizontal shaft (81). The purification box (1) is equipped with a geared motor (82), and the output shaft of the geared motor (82) is coaxially connected to the horizontal shaft (81). The arc-shaped cavity (61) is provided with a limiting rod (65) and a rotating rod (66) extending along the length direction of the arc-shaped cavity (61). The limiting rod (65) and the rotating rod (66) are both slidably inserted through the spray plate (62). The spray plate (62) can rotate around the axis of the rotating rod (66). The purification box (1) is provided with a guide groove (68) for the limiting rod (65) to slide. The guide groove (68) is arc-shaped and is set on the same axis as the rotating rod (66). The limiting rod (65) is connected to the bottom plate (8) by a connecting rope (83). The limiting rod (65) is connected to the guide groove (68) by a third spring (69). During the flipping process, the bottom plate (8) can pull the limiting rod (65) to slide on the guide groove (68) by the connecting rope (83).

2. The power plant oxygen supply detection and purification device according to claim 1, characterized in that: The activated carbon plate (14) is arranged in an arc shape with both ends curving upwards and the middle concave. Both ends of the activated carbon plate (14) are spaced apart from the inner wall of the purification box (1). A dust collection box (3) is provided between the end of the activated carbon plate (14) and the inner wall of the purification box (1). The top of the dust collection box (3) is open and located at the end of the activated carbon plate (14). The purification box (1) is provided with a cleaning unit (4) for cleaning the dust on the activated carbon plate (14) into the dust collection box (3). The bottom of the dust collection box (3) is provided with a dust outlet (31) that penetrates the purification box (1). An opening and closing door (32) is provided at the dust outlet (31).

3. The power plant oxygen supply detection and purification device according to claim 2, characterized in that: The cleaning unit (4) includes a rotating shaft (41) coaxially arranged with the activated carbon plate (14). The rotating shaft (41) is rotatably connected to the purification box (1) around its own axis. One end of the rotating shaft (41) is connected to a scraper (43) that rotates against the upper surface of the activated carbon plate (14) via a connecting rod (42). The other end of the rotating shaft (41) extends out of the purification box (1) and is fixedly fitted with a gear (44). A rack (45) meshes with the gear (44). The rack (45) slides along its own length direction and is connected to the purification box (1). The purification box (1) is provided with a drive motor (46). A reciprocating screw (47) is coaxially connected to the output shaft of the drive motor (46). The reciprocating screw (47) is threaded into the rack (45), and the length directions of the reciprocating screw (47) and the rack (45) are the same.

4. The power plant oxygen supply detection and purification device according to claim 3, characterized in that: The dust collection box (3) is provided with an opening and closing unit (5). The opening and closing unit (5) includes an upper door panel (51) and a lower door panel (52) arranged from top to bottom and slidably passing through the purification box (1). The upper door panel (51) is connected to the lower door panel (52) by a pull rope (53). The upper door panel (51) is connected to the purification box (1) by a first spring (54). The lower door panel (52) is connected to the purification box (1) by a second spring (55). The upper door panel (51) is provided with a push rod (56) for the scraper (43) to push and move. When the first spring (54) is in its natural state, the upper door panel (51) will close the top opening of the dust collection box (3) and pull the lower door panel (52) away from the inside of the dust collection box (3) by the pull rope (53). At this time, the second spring (55) will be in a deformed state. When the scraper (43) pushes the upper door panel (51) away from the top opening of the dust collection box (3) by the push rod (56), the second spring (55) will return to its natural state and cause the lower door panel (52) to block the inside of the dust collection box (3).

5. The power plant oxygen supply detection and purification device according to claim 1, characterized in that: The bottom of the partition (15) located at the bottom is connected to the bottom of the purification box (1) via a connecting plate (16). The side of the connecting plate (16) facing the air outlet pipe (12) together with the inner wall of the purification box (1) forms a drying chamber (17). The drying chamber (17) is filled with desiccant particles. The serpentine cavity (6) is connected to the air outlet pipe (12) through the drying chamber (17).

6. The power plant oxygen supply detection and purification device according to claim 5, characterized in that: The connecting plate (16) on the side opposite to the air outlet pipe (12) and together with the inner wall of the purification box (1) form a liquid storage chamber (18). The liquid storage chamber (18) is connected to all the bends at the bottom of the serpentine cavity (6). The purification box (1) is provided with an overflow pipe (19) at the same height as the bends at the bottom of the serpentine cavity (6). The overflow pipe (19) is connected to the liquid storage chamber (18).

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