Flue gas emission equipment with detection function for coal-fired power plant

Abstract

The invention relates to the technical field of coal-fired power plant flue gas emission, and discloses coal-fired power plant flue gas emission equipment with a detection function, the coal-fired power plant flue gas emission equipment comprises a water box and a processor, an upper connecting shell is fixedly inserted into the top of the water box, a side connecting shell is fixedly inserted into one end of the upper connecting shell, and a flue gas inlet pipe is fixedly inserted into the top of the side connecting shell; a smoke outlet pipe is fixedly connected to the top of the upper connecting shell in an inserted mode, smoke detection probes are connected to one side of the smoke inlet pipe and one side of the smoke outlet pipe in an inserted mode, and a plurality of cleaning brushes are fixed to the inner walls of the two sides of the water box through bolts. Incoming smoke and exhausted smoke are detected through the smoke detection probe, if it is found that detection data of the incoming smoke and the outgoing smoke are the same, information is transmitted to the processor to be processed, then the processor controls the motor to be started, the bevel filter cover is driven by the motor to rub with the cleaning brush, and therefore the bevel filter cover is cleaned; and the emission efficiency of the flue gas is not influenced.

Description

Technical Field

[0001] The invention relates to the technical field of smoke emission from coal-fired power plants, and in particular to smoke emission equipment for coal-fired power plants with a detection function. Background Art

[0002] At present, with the rapid development of the global economy and the acceleration of the industrialization process, coal-fired power generation has been widely used as an important energy supply method. The flue gas generated by coal-fired power plants will be discharged through emission equipment, and some harmful substances contained in the flue gas will be processed through the filtering structure in the emission equipment until the flue gas detected by the flue gas detection probe meets the emission standards, so as to avoid the direct discharge of flue gas into the atmosphere, which will cause serious pollution to the environment.

[0003] Although the existing flue gas emission equipment can achieve the function of flue gas detection during use, it is not convenient to clean and replace the flue gas treatment and filtration structure inside the emission equipment in a timely manner, resulting in reduced efficiency of flue gas emission. Therefore, in order to advance the industry's technological progress, better realize the flue gas emission function, and improve the competitiveness of core technologies, the present application proposes a new implementation plan that is different from the filtering structure and usage method of the flue gas emission equipment of coal-fired power plants in the prior art. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides a flue gas emission device for a coal-fired power plant with a detection function, mainly to solve the problem that during the use of the existing flue gas emission equipment, the flue gas treatment and filtration structure inside the emission equipment is not convenient for timely cleaning and replacement, resulting in reduced flue gas emission efficiency.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A smoke exhaust device for a coal-fired power plant with a detection function comprises a water box and a processor, an upper connecting shell is fixedly inserted on the top of the water box, a side connecting shell is fixedly inserted on one end of the upper connecting shell, a smoke inlet pipe is fixedly inserted on the top of the side connecting shell, a smoke outlet pipe is fixedly inserted on the top of the upper connecting shell, a smoke detection probe is inserted on one side of the smoke inlet pipe and one side of the smoke outlet pipe, a plurality of cleaning brushes are fixed to the inner walls of both sides of the water box by bolts, bearings are clamped on the inner walls of both ends of the upper connecting shell, a connecting ring is clamped on one side of the inner ring and the outer ring of the bearing, a motor is fixed to the outer wall of the top of the water box by bolts, a supporting shaft is keyed to the output end of the motor, a connecting frame is welded on the outer wall of the supporting shaft extending into the upper connecting shell, a fixing ring is welded on the circumference of the fixing ring, two inclined filter covers are fixed to both sides of the fixing ring by bolts, the inclined filter cover passes between two adjacent cleaning brushes, a sealing ring is clamped on one end of the inclined filter cover, and the sealing ring contacts the connecting ring.

[0009] Furthermore, a plurality of ventilation holes are provided on one side of the fixing ring.

[0010] On the basis of the above-mentioned solution, a vertical plate is welded between the bottom inner wall and the top inner wall of the side connecting shell, and one end of the support shaft is rotatably plugged into the vertical plate.

[0011] As a further solution of the present invention, a water inlet pipe is inserted into one side of the water box, a top cover is provided on the top threaded sleeve of the water inlet pipe, one end of the drainage pipe of the water box is connected to a control valve through a flange, a sealing door is rotatably connected to one side of the water box, and a lower transparent plate is embedded on one side of the sealing door.

[0012] Furthermore, one end of the side connecting shell is rotatably connected to a side door, a plurality of blocks are welded on the circumference of the side door, an outer wall of the side connecting shell is rotatably connected to a plurality of side threaded rods via a rotating shaft, and a side butterfly nut is threadedly sleeved on one end of the side threaded rod.

[0013] On the basis of the above-mentioned solution, an upper transparent plate is embedded on one side of the upper connecting shell.

[0014] As a further solution of the present invention, a plurality of supporting ribs are welded to the bottom outer wall of the side connecting shell, and one side of the supporting ribs is fixedly connected to one side outer wall of the water box.

[0015] Furthermore, the top end of the smoke outlet pipe is connected to a fixed shell via a flange, a support frame is slidably inserted between the inner walls of multiple sides of the fixed shell, and a smoke guide fan is fixed to the top of the support frame via bolts.

[0016] On the basis of the above scheme, one side of the fixed shell is rotatably connected to the rotating door, one side outer wall of the fixed shell is rotatably connected to the upper threaded rod, and one end of the upper threaded rod is threadedly sleeved with an upper butterfly nut.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a smoke emission device for a coal-fired power plant with a detection function, which has the following beneficial effects:

[0019] 1. The incoming smoke and the outgoing smoke are detected by the smoke detection probe. If the incoming and outgoing smoke detection data are the same, the information is transmitted to the processor for processing. Then, the processor controls the motor to start. Driven by the motor, the inclined filter cover rubs against the cleaning brush, thereby cleaning the inclined filter cover to avoid affecting the emission efficiency of the smoke.

[0020] 2. By setting the contact between the bearing, the connecting ring and the sealing ring, a gap between the inclined filter cover and the bearing is avoided, so as not to affect the treatment effect of the flue gas.

[0021] 3. Unscrew the side butterfly nut, turn the side threaded rod to separate it from the block, then open the side door and clean the inside of the side connecting shell to ensure normal flue gas treatment.

[0022] 4. Unscrew the upper butterfly nut, pull the upper threaded rod to separate it from the rotating door, and then pull the support frame to slide in the fixed shell to facilitate the disassembly and cleaning of the smoke guide fan, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the three-dimensional structure of a coal-fired power plant flue gas emission device with a detection function according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the main cross-sectional structure of Embodiment 1 of a smoke emission device for a coal-fired power plant with a detection function proposed by the present invention;

[0025] Figure 3 This is a schematic diagram of a partial cross-sectional structure inside a water box of a coal-fired power plant flue gas emission device with a detection function in Example 1 proposed by the present invention;

[0026] Figure 4 A partial cross-sectional structural schematic diagram of a coal-fired power plant flue gas emission device with a detection function according to an embodiment 1 of the present invention;

[0027] Figure 5 A schematic diagram of the three-dimensional structure of a second embodiment of a smoke emission device for a coal-fired power plant with a detection function proposed by the present invention;

[0028] Figure 6 A schematic diagram of the three-dimensional structure of a fixed shell of Embodiment 2 of a smoke emission device for a coal-fired power plant with a detection function proposed by the present invention;

[0029] Figure 7This is a schematic diagram of the fixed shell and its internal cross-sectional structure of Example 2 of a smoke emission device for a coal-fired power plant with a detection function proposed by the present invention.

[0030] In the figure: 1. water box; 2. upper connecting shell; 3. side connecting shell; 4. smoke inlet pipe; 5. smoke outlet pipe; 6. smoke detection probe; 7. cleaning brush; 8. bearing; 9. connecting ring; 10. support shaft; 11. connecting frame; 12. fixing ring; 13. inclined filter cover; 14. sealing ring; 15. ventilation hole; 16. motor; 17. vertical plate; 18. control valve; 19. water inlet pipe; 20. top cover; 21. sealing door; 22. side door; 23. block; 24. side threaded rod; 25. side butterfly nut; 26. upper transparent plate; 27. lower transparent plate; 28. supporting rib; 29. ​​fixing shell; 30. supporting frame; 31. smoke guide fan; 32. rotating door; 33. upper threaded rod; 34. upper butterfly nut. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example 1

[0033] Reference Figure 1-Figure 4 , a smoke emission device for a coal-fired power plant with a detection function, comprising a water box 1 and a processor, an upper connecting shell 2 is fixedly plugged on the top of the water box 1, a side connecting shell 3 is fixedly plugged on one end of the upper connecting shell 2, a smoke inlet pipe 4 is fixedly plugged on the top of the side connecting shell 3, a smoke outlet pipe 5 is fixedly plugged on the top of the upper connecting shell 2, a smoke detection probe 6 is plugged on one side of the smoke inlet pipe 4 and one side of the smoke outlet pipe 5, the smoke detection probe 6 is electrically connected to the processor, when the smoke is entering and exiting, the smoke detection probe 6 is used to detect the incoming smoke and the exhausted smoke, if it is found that the incoming and outgoing smoke detection data are the same, the information is transmitted to the processor for processing;

[0034] A plurality of cleaning brushes 7 are fixed to the inner walls of both sides of the water box 1 by bolts, bearings 8 are clamped to the inner walls of both ends of the upper connecting shell 2, and connecting rings 9 are clamped to one side of the inner ring and outer ring of the bearing 8. A motor 16 is fixed to the top outer wall of the water box 1 by bolts, and a support shaft 10 is keyed to the output end of the motor 16. A connecting frame 11 is welded to the outer wall of the support shaft 10 extending into the upper connecting shell 2, and a fixing ring 12 is welded to the circumference of the connecting frame 11. A plurality of ventilation holes 15 are provided on one side of the fixing ring 12, and two inclined filter covers 13 are fixed to both sides of the fixing ring 12 by bolts. Driven by the motor 16, the support shaft 10 rotates, thereby driving the connecting frame 11, the fixing ring 12 and the inclined filter cover 13 to rotate, so that the inclined filter cover 13 rubs against the cleaning brush 7, thereby cleaning the inclined filter cover 13, and the inclined filter cover 13 passes between two adjacent cleaning brushes 7. A vertical plate 17 is welded between the bottom inner wall and the top inner wall of the side connecting shell 3, one end of the support shaft 10 is rotatably plugged with the vertical plate 17, and a sealing ring 14 is clamped at one end of the inclined filter cover 13, and the sealing ring 14 contacts with the connecting ring 9, thereby avoiding a gap between the inclined filter cover 13 and the bearing 8, so as not to affect the smoke treatment effect.

[0035] A water inlet pipe 19 is inserted into one side of the water box 1. A top cover 20 is provided on the top of the water inlet pipe 19. The top cover 20 is screwed down so that water can be injected into the water box 1 from the water inlet pipe 19. A control valve 18 is connected to one end of the drain pipe of the water box 1 through a flange. The control valve 18 is opened to discharge the water in the water box 1 from the drain pipe. A sealing door 21 is rotatably connected to one side of the water box 1 to prevent leakage of water in the water box 1. A lower transparent plate 27 is embedded on one side of the sealing door 21. A side door 22 is rotatably connected to one end of the side connection shell 3. A plurality of blocks 23 are welded to the circumference of the side door 22. The outer wall of the side connecting shell 3 is rotatably connected with a plurality of side threaded rods 24 through a rotating shaft, and a side butterfly nut 25 is threadedly sleeved on one end of the side threaded rod 24. Unscrew the side butterfly nut 25, and then pull the side threaded rod 24 to separate it from the block 23. Then, open the side door 22 to clean the inside of the side connecting shell 3. An upper transparent plate 26 is embedded on one side of the upper connecting shell 2. A plurality of supporting ribs 28 are welded to the bottom outer wall of the side connecting shell 3. One side of the supporting rib 28 is fixedly connected to the outer wall of one side of the water box 1, thereby strengthening the connection between the side connecting shell 3 and the water box 1.

[0036] Working principle of this embodiment: when in use, first, unscrew the top cover 20, and inject water into the water box 1 from the water inlet pipe 19, until the liquid level of the water box 1 reaches the connection between the water box 1 and the upper connecting shell 2, then, the smoke enters the side connecting shell 3 from the smoke inlet pipe 4, and then enters the upper connecting shell 2 from the side connecting shell 3, then, the smoke is filtered through the inclined filter cover 13, and then discharged from the smoke outlet pipe 5;

[0037] When smoke is entering and exiting, the smoke detection probe 6 detects the incoming smoke and the outgoing smoke. If the incoming and outgoing smoke detection data are the same, the information is transmitted to the processor for processing. Then, the processor controls the motor 16 to start. The support shaft 10 is driven by the motor 16 to rotate, thereby driving the connecting frame 11, the fixing ring 12 and the inclined filter cover 13 to rotate, so that the inclined filter cover 13 rubs against the cleaning brush 7, thereby cleaning the inclined filter cover 13, and the impurities generated by the cleaning fall into the water in the water box 1;

[0038] When it is necessary to clean the inside of the side connection shell 3 , unscrew the side butterfly nut 25 , then move the side threaded rod 24 to separate it from the block 23 , and then open the side door 22 to clean the inside of the side connection shell 3 .

[0039] Example 2

[0040] Reference Figure 5-Figure 7 A smoke exhaust device for a coal-fired power plant with a detection function includes a fixed shell 29 connected to the top of a smoke outlet pipe 5 through a flange, a support frame 30 is slidably inserted between the inner walls of multiple sides of the fixed shell 29, a smoke guide fan 31 is fixed to the top of the support frame 30 by bolts, and the smoke guide fan 31 accelerates the exhaust speed of smoke, a rotating door 32 is rotatably connected to one side of the fixed shell 29, and an upper threaded rod 33 is rotatably connected to the outer wall of one side of the fixed shell 29, and an upper butterfly nut 34 is threadedly sleeved on one end of the upper threaded rod 33. Unscrew the upper butterfly nut 34, pull the upper threaded rod 33 to separate from the rotating door 32, and then pull the support frame 30 to slide in the fixed shell 29 to facilitate the disassembly and cleaning of the smoke guide fan 31.

[0041] The working principle of this embodiment is as follows: when in use, the smoke exhaust speed is accelerated by the smoke guide fan 31, then the upper butterfly nut 34 is unscrewed, the upper threaded rod 33 is pulled to separate from the rotating door 32, and then the support frame 30 is pulled to slide in the fixed shell 29 to facilitate the disassembly and cleaning of the smoke guide fan 31.

[0042] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0043] In the description of this article, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A smoke emission device for a coal-fired power plant with a detection function, comprising a water box (1) and a processor, wherein an upper connecting shell (2) is fixedly plugged into the top of the water box (1), a side connecting shell (3) is fixedly plugged into one end of the upper connecting shell (2), a smoke inlet pipe (4) is fixedly plugged into the top of the side connecting shell (3), a smoke outlet pipe (5) is fixedly plugged into the top of the upper connecting shell (2), and a smoke detection probe (6) is plugged into one side of the smoke inlet pipe (4) and one side of the smoke outlet pipe (5), characterized in that: A plurality of cleaning brushes (7) are fixed to the inner walls of both sides of the water box (1) by bolts, bearings (8) are clamped to the inner walls of both ends of the upper connecting shell (2), and connecting rings (9) are clamped to one side of the inner ring and the outer ring of the bearing (8), and a motor (16) is fixed to the outer wall of the top of the water box (1) by bolts, and the output end of the motor (16) is key-connected to a support shaft (10), and a connecting frame (11) is welded to the outer wall of the support shaft (10) extending into the upper connecting shell (2), and a fixing ring (12) is welded to the circumference of the connecting frame (11), and two inclined filter covers (13) are fixed to both sides of the fixing ring (12) by bolts, and the inclined filter covers (13) pass between two adjacent cleaning brushes (7), and a sealing ring (14) is clamped to one end of the inclined filter cover (13), and the sealing ring (14) is in contact with the connecting ring (9).

2. The smoke emission equipment of a coal-fired power plant with a detection function according to claim 1, characterized in that: A plurality of ventilation holes (15) are provided on one side of the fixing ring (12).

3. The smoke emission equipment of a coal-fired power plant with a detection function according to claim 1, characterized in that: A vertical plate (17) is welded between the bottom inner wall and the top inner wall of the side connection shell (3), and one end of the support shaft (10) is rotatably plugged into the vertical plate (17).

4. The smoke emission equipment of a coal-fired power plant with a detection function according to claim 1, characterized in that: A water inlet pipe (19) is inserted into one side of the water box (1), a top cover (20) is threadedly sleeved on the top end of the water inlet pipe (19), one end of the drainage pipe of the water box (1) is connected to a control valve (18) via a flange, a sealing door (21) is rotatably connected to one side of the water box (1), and a lower transparent plate (27) is embedded on one side of the sealing door (21).

5. The smoke emission equipment of a coal-fired power plant with a detection function according to claim 1, characterized in that: One end of the side connection shell (3) is rotatably connected to a side door (22), a plurality of clamping blocks (23) are welded to the circumference of the side door (22), an outer wall of the side connection shell (3) is rotatably connected to a plurality of side threaded rods (24) via a rotating shaft, and one end of the side threaded rod (24) is threadedly sleeved with a side butterfly nut (25).

6. The smoke emission equipment of a coal-fired power plant with a detection function according to claim 1, characterized in that: An upper transparent plate (26) is embedded on one side of the upper connecting shell (2).

7. The smoke emission equipment of a coal-fired power plant with a detection function according to claim 1, characterized in that: A plurality of support ribs (28) are welded to the bottom outer wall of the side connection shell (3), and one side of the support rib (28) is fixedly connected to one side outer wall of the water box (1).

8. The smoke emission equipment of a coal-fired power plant with a detection function according to claim 1, characterized in that: The top end of the smoke outlet pipe (5) is connected to a fixed shell (29) via a flange, a support frame (30) is slidably inserted between the inner walls of multiple sides of the fixed shell (29), and a smoke guide fan (31) is fixed to the top of the support frame (30) via bolts.

9. The smoke emission equipment with detection function for coal-fired power plants according to claim 8, characterized in that: One side of the fixed shell (29) is rotatably connected to a rotating door (32), and one side outer wall of the fixed shell (29) is rotatably connected to an upper threaded rod (33), and one end of the upper threaded rod (33) is threadedly sleeved with an upper butterfly nut (34).

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