Waste gas detection device for thermal power generation

Abstract

The invention relates to the technical field of waste gas detection, and discloses a waste gas detection device for thermal power generation, which comprises a shell, a plurality of supporting legs are fixedly connected to the outer wall of the bottom of the shell, and a mounting plate is fixedly connected to the position, close to the top, of the outer wall of one side of the shell. A sulfur dioxide concentration detection probe is fixedly connected to one side of the mounting plate, the detection end of the sulfur dioxide concentration detection probe penetrates through the mounting plate and the shell, a second annular groove is formed in the inner wall of the shell, a filter screen is arranged in the second annular groove, and an air inlet pipe is fixedly connected to the position, located below the filter screen, of one side of the shell; and the top of the shell is fixedly connected with an air outlet pipe. The filter screen does not need to be disassembled and cleaned, time is saved, efficiency is improved, the filter screen can be conveniently disassembled and replaced, the convenience of replacement of the filter plate is improved, waste gas can be prevented from leaking from the arc-shaped notch, and the sealing performance of the detection device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas detection, and in particular to a waste gas detection device for thermal power generation. Background Art

[0002] Thermal power generation is a power generation method that uses the heat energy generated by the combustion of fossil fuels such as coal, oil, and natural gas, or combustible materials such as biomass, to heat water in a boiler to generate high-temperature and high-pressure steam, which drives a steam turbine to generate electricity. When thermal power generation burns coal or gas, it releases a large amount of pollutants, including sulfur dioxide.

[0003] When exhaust gas is discharged, it is necessary to sample and test the concentration of sulfur dioxide in the exhaust gas, and discharge it when the test meets the standard. However, the existing exhaust gas detection device will filter the dust particles in the exhaust gas through the filter. But as time goes by, the filter will become clogged and the filter needs to be removed and cleaned regularly. However, since the filter is set inside the device, the disassembly process is more troublesome. In order to better deal with the above problems, promote the development of industry technology level, and improve core competitiveness, this application proposes a new composition structure that is different from the existing technology. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the present invention provides an exhaust gas detection device for thermal power generation, which is mainly used to solve the problem that the existing filter screen may become clogged and needs to be removed and cleaned regularly. However, since the filter screen is set inside the device, the disassembly process is relatively troublesome.

[0006] (2) Technical solution

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] The exhaust gas detection device for thermal power generation comprises a shell, wherein the bottom outer wall of the shell is fixedly connected to a plurality of supporting legs, a mounting plate is fixedly connected to the outer wall of one side of the shell near the top, a sulfur dioxide concentration detection probe is fixedly connected to one side of the mounting plate, and the detection end of the sulfur dioxide concentration detection probe passes through the mounting plate and the shell, the inner wall of the shell is provided with two annular grooves, a filter is provided in the second annular groove, an air inlet pipe is fixedly connected to a position below the filter on one side of the shell, an air outlet pipe is fixedly connected to the top of the shell, an arc-shaped notch connected to the second annular groove on one side of the shell is provided, an arc-shaped plate fixed to the filter is provided in the arc-shaped notch, two fixing plates are fixedly connected to one side of the arc-shaped plate, and the two fixing plates are detachably connected to the shell by bolts, a cleaning mechanism for cleaning the filter is provided in the shell, and a sealing assembly is provided at the top and bottom of the arc-shaped plate.

[0009] Furthermore, the cleaning mechanism includes a U-shaped scraper, the bottom of the shell is located at the center and is rotatably connected to a connecting rod through a bearing, the U-shaped scraper is fixedly connected to the top of the connecting rod, the U-shaped scraper is in contact with the bottom inner wall and the circumferential inner wall of the shell, the top of the U-shaped scraper is fixedly connected to a brush plate in contact with the filter, the bottom end of the connecting rod is connected to a bevel gear four through the shell key, and a spray assembly for spraying water on the filter is provided in the shell.

[0010] On the basis of the above-mentioned scheme, the spray assembly includes a rotating ring, and the inner wall of the shell is provided with an annular groove 1 at a position between the annular groove 2 and the sulfur dioxide concentration detection probe. The rotating ring is rotatably connected in the annular groove 1, and the circumferential inner wall of the rotating ring is fixedly connected with a plurality of evenly distributed connecting pipes, and the bottoms of the plurality of connecting pipes are fixedly connected with a plurality of nozzles, and a water inlet pipe is fixedly connected between the plurality of connecting pipes, and the top of the water inlet pipe passes through the shell, and the outer side of the water inlet pipe is keyed to a bevel gear 3 at a position above the shell, and the outer side of the shell is provided with a power assembly for driving the water inlet pipe and the connecting rod to rotate.

[0011] As a further solution of the present invention, the power assembly includes a U-shaped seat, which is fixedly connected to the outside of the shell, and a double-axle asynchronous motor is fixedly connected to the U-shaped seat. The output shafts at both ends of the double-axle asynchronous motor are connected to the rotating shaft through a coupling, and the rotating shaft passes through the U-shaped seat. One end of the rotating shaft is keyed to bevel gear 1, and the top outer wall and the bottom outer wall of the shell are both installed with connecting shafts through bearing seats. Both ends of the two connecting shafts are keyed to bevel gear 2, wherein the two bevel gears 2 are respectively meshed with the two bevel gears 1, and the other two bevel gears 2 are respectively meshed with bevel gear 3 and bevel gear 4.

[0012] Furthermore, the outer sides of the two rotating shafts are rotatably connected to support blocks through bearings, and the support blocks are fixed to the shell. The bottom of the shell is fixedly connected to a water outlet pipe, and a valve is provided on the outer side of the water outlet pipe.

[0013] On the basis of the above solution, the sealing assembly includes a sealing strip, which is fixedly connected to the outer side of the arc-shaped plate. The inner walls around the arc-shaped notch are provided with card slots, and the sealing strip is card-engaged with the card slots.

[0014] As a further solution of the present invention, an L-shaped pipe is sleeved on the top of the water inlet pipe, and a sealing ring is fixedly connected to the outer side of the water inlet pipe at a position inside the L-shaped pipe. The inner wall of the L-shaped pipe is provided with an annular keyway that cooperates with the sealing ring.

[0015] Furthermore, a filter plate is fixedly connected to a position near the top of the air outlet pipe, and a handle is fixedly connected to one side of the arc plate.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the present invention provides an exhaust gas detection device for thermal power generation, which has the following beneficial effects:

[0018] 1. The present invention provides a cleaning mechanism, which can clean the filter after it has been used for a long time, thereby eliminating the need to disassemble and clean the filter, saving time and improving efficiency.

[0019] 2. The present invention has a detachable connection between the fixing plate and the shell. When the filter is damaged, the fixing plate and the shell can be removed. At this time, the filter can be taken out of the shell through the arc-shaped notch for replacement, which facilitates the removal and replacement of the filter and improves the convenience of replacing the filter plate.

[0020] 3. The present invention provides a sealing assembly. When the filter is installed in the housing, the sealing assembly will seal the gap between the arc plate and the arc groove, thereby preventing exhaust gas from leaking from the arc groove and improving the sealing performance of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front three-dimensional structure of an exhaust gas detection device for thermal power generation proposed by the present invention;

[0022] Figure 2 This is a schematic diagram of the bottom plan view of an exhaust gas detection device for thermal power generation proposed by the present invention;

[0023] Figure 3 This is a schematic diagram of a partial cross-sectional structure of a cooling device for an exhaust gas detection device for thermal power generation proposed by the present invention.

[0024] Figure 4 This is an enlarged structural diagram of a cleaning mechanism for an exhaust gas detection device for thermal power generation proposed by the present invention;

[0025] Figure 5 This is a partially enlarged structural diagram of an exhaust gas detection device for thermal power generation proposed by the present invention;

[0026] Figure 6 This is a schematic diagram of the enlarged structure of part A of an exhaust gas detection device for thermal power generation proposed by the present invention;

[0027] Figure 7 This is a schematic diagram of the enlarged structure of part B of an exhaust gas detection device for thermal power generation proposed by the present invention.

[0028] In the figure: 1. Shell; 2. Arc plate; 3. Air inlet pipe; 4. Handle; 5. Support leg; 6. Fixing plate; 7. Arc notch; 8. Sulfur dioxide concentration detection probe; 9. Mounting plate; 10. Air outlet pipe; 11. Water inlet pipe; 12. L-shaped pipe; 13. Support block; 14. Cleaning mechanism; 15. Valve; 16. Water outlet pipe; 17. Ring groove 1; 18. Ring groove 2; 19. Filter; 20. Double-axle asynchronous motor; 21. U-shaped seat; 22. Rotating shaft; 23. Bevel gear 1; 24. Bevel gear 2; 25. Connecting shaft; 26. Bevel gear 3; 27. Rotating ring; 28. Connecting pipe; 29. ​​Sprinkler; 30. Connecting rod; 31. Bevel gear 4; 32. U-shaped scraper; 33. Brush plate; 34. Filter plate; 35. Slot; 36. Sealing strip; 37. Sealing ring; 38. Ring keyway. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] Reference Figure 1-Figure 7 , an exhaust gas detection device for thermal power generation, comprising a shell 1, a plurality of supporting legs 5 are welded to the bottom outer wall of the shell 1, a mounting plate 9 is welded to the outer wall of one side of the shell 1 near the top, a sulfur dioxide concentration detection probe 8 is fixed to one side of the mounting plate 9 by bolts, and the detection end of the sulfur dioxide concentration detection probe 8 passes through the mounting plate 9 and the shell 1, the model of the sulfur dioxide concentration detection probe 8 is MOT200-SO2, an annular groove 2 18 is opened on the inner wall of the shell 1, a filter screen 19 is arranged in the annular groove 2 18, an air inlet pipe 3 is welded to the position below the filter screen 19 on one side of the shell 1, and an air outlet pipe 10 is welded to the top of the shell 1. When detection is required, the sampled exhaust gas is added to the shell 1 through the air inlet pipe 3. At this time, the exhaust gas will flow upward in the shell 1. At this time, the filter screen 19 will filter the dust particles in the exhaust gas. The filtered exhaust gas continues to flow upward. At this time, the sulfur dioxide concentration detection probe 8 will detect the concentration of sulfur dioxide in the exhaust gas, thereby realizing the detection of the exhaust gas;

[0031] In the present invention, an arc-shaped notch 7 connected to the second annular groove 18 is opened on one side of the shell 1, and the length of the arc-shaped notch 7 is half the circumference of the shell 1. An arc-shaped plate 2 fixed to the filter 19 is provided in the arc-shaped notch 7, and the specifications of the arc-shaped plate 2 and the arc-shaped notch 7 are equal. Two fixing plates 6 are welded to one side of the arc-shaped plate 2. Both fixing plates 6 are detachably connected to the shell 1 by bolts. When the filter 19 is damaged, the fixing plate 6 is disassembled from the shell 1. At this time, the arc-shaped plate 2 can be taken out from the arc-shaped notch 7. The arc-shaped plate 2 will pull the filter 19 out of the shell 1 through the arc-shaped notch 7, thereby realizing the disassembly and replacement of the filter 19.

[0032] In particular, a cleaning mechanism 14 for cleaning the filter 19 is provided in the housing 1, and the cleaning mechanism 14 includes a U-shaped scraper 32. The bottom of the housing 1 is located at the center and is rotatably connected to a connecting rod 30 through a bearing. The U-shaped scraper 32 is fixed to the top of the connecting rod 30 by bolts. The U-shaped scraper 32 fits the bottom inner wall and the circumferential inner wall of the housing 1. The top of the U-shaped scraper 32 is fixed with a brush plate 33 in contact with the filter 19 by bolts. The bottom end of the connecting rod 30 passes through the housing 1 and is keyed to a bevel gear 4 31. A spray assembly for spraying water on the filter 19 is provided in the housing 1, and the spray assembly includes a rotating ring 27. The inner wall of the housing 1 is provided with a ring groove 17 at a position between the ring groove 2 18 and the sulfur dioxide concentration detection probe 8. The rotating ring 27 is rotatably connected in the ring groove 17, and a plurality of evenly distributed connecting pipes 28 are welded to the inner wall of the circumference of the rotating ring 27. A plurality of nozzles 29 are fixed to the bottom of the plurality of connecting pipes 28 by bolts. A water inlet pipe 11 is welded between the plurality of connecting pipes 28, and the top of the water inlet pipe 11 passes through the shell 1. The outer side of the water inlet pipe 11 is located above the shell 1 and is keyed to a bevel gear 3 26. A power assembly for driving the water inlet pipe 11 and the connecting rod 30 to rotate is provided on the outside of the shell 1. The power assembly includes a U-shaped seat 21, which is welded to the outside of the shell 1. A double-axle asynchronous motor 20 is fixed in the U-shaped seat 21 by bolts. The output shafts at both ends of the double-axle asynchronous motor 20 are connected to the rotating shaft 22 through a coupling, and the rotating shaft 22 passes through U-shaped seat 21, one end of the rotating shaft 22 is keyed to a bevel gear 1 23, the top outer wall and the bottom outer wall of the housing 1 are both installed with a connecting shaft 25 through a bearing seat, and both ends of the two connecting shafts 25 are keyed to a bevel gear 2 24, wherein the two bevel gears 24 are respectively meshed with the two bevel gears 1 23, and the other two bevel gears 24 are respectively meshed with the bevel gear 3 26 and the bevel gear 4 31. When the filter 19 is used for a long time, water is transported to the connecting pipe 28 through the water inlet pipe 11, and then sprayed to the filter 19 through the nozzle 29, and at the same time, the double-axle asynchronous motor 20 is started, and the double-axle asynchronous motor 20 will drive the two rotating shafts 22 to rotate, and the two rotating shafts 22 will drive the connecting shaft 25 to rotate through the meshing of the bevel gear 1 23 and the bevel gear 2 24. One of the connecting shafts 25 will drive the water inlet pipe 11 to rotate through the engagement of bevel gear 24 and bevel gear 3 26, and the water inlet pipe 11 will drive the rotating ring 27 to rotate in the ring groove 1 17 through the connecting pipe 28, thereby expanding the water spraying range of the sprinkler head 29, so that the sprinkler head 29 can fully spray water on the filter screen 19. At the same time, the other connecting shaft 25 will drive the connecting rod 30 to rotate through the engagement of bevel gear 24 and bevel gear 4 31. The connecting rod 30 will drive the U-shaped scraper 32 to rotate, so that the U-shaped scraper 32 scrapes and cleans the circumferential inner wall and the bottom inner wall of the housing 1. At the same time, the U-shaped scraper 32 will drive the brush plate 33 to rotate, so that the brush plate 33 cleans the filter screen 19, thereby eliminating the need to disassemble and clean the filter screen 19, saving time and improving efficiency.

[0033] The top and bottom of the arc-shaped plate 2 are provided with sealing components, which include sealing strips 36. The sealing strips 36 are bonded to the outer side of the arc-shaped plate 2. The inner walls around the arc-shaped notch 7 are provided with card grooves 35, and the sealing strips 36 are card-engaged with the card grooves 35. The sealing strips 36 can seal the gap between the arc-shaped plate 2 and the arc-shaped notch 7, thereby preventing exhaust gas from leaking through the arc-shaped notch 7.

[0034] It should be noted that the outer sides of the two rotating shafts 22 are rotatably connected to the support blocks 13 through bearings, and the support blocks 13 are fixed to the shell 1. The support blocks 13 can support the rotating shaft 22. The bottom of the shell 1 is welded with a water outlet pipe 16, and the outer side of the water outlet pipe 16 is provided with a valve 15. During the cleaning process, the valve 15 on the water outlet pipe 16 is opened. At this time, since the nozzle 29 sprays water, the dust particles cleaned and dropped will follow the water flow through the water outlet pipe 16 and be discharged into the shell 1, avoiding the accumulation of dust particles in the shell 1. At the same time, the water sprayed by the nozzle 29 will clean the brush plate 33, and wash away the dust particles on the brush plate 33, thereby improving the service life of the brush plate 33. The top of the water inlet pipe 11 is connected with an L-shaped pipe 12, and the outer side of the water inlet pipe 11 is located A sealing ring 37 is welded at a position inside the L-shaped pipe 12, and an annular key groove 38 that cooperates with the sealing ring 37 is opened on the inner wall of the L-shaped pipe 12 to connect the external water supply pipe with the L-shaped pipe 12. The external water supply pipe will transport water through the L-shaped pipe 12 to the water inlet pipe 11 and enter the connecting pipe 28, thereby realizing water supply to the connecting pipe 28. At the same time, the water inlet pipe 11 does not affect the rotation of the water inlet pipe 11 under the cooperation of the sealing ring 37 and the annular key groove 38. At the same time, the water inlet pipe 11 and the L-shaped pipe 12 can be sealed to prevent water leakage. A filter plate 34 is fixed by bolts near the top of the air outlet pipe 10. The filter plate 34 can prevent external dust from entering the shell 1, and a handle 4 is fixed by bolts on one side of the arc plate 2.

[0035] Working principle: When in use, the sampled exhaust gas is added into the shell 1 through the air inlet pipe 3. At this time, the exhaust gas will flow upward in the shell 1. At this time, the filter 19 will filter the dust particles in the exhaust gas. The filtered exhaust gas continues to flow upward. At this time, the sulfur dioxide concentration detection probe 8 will detect the concentration of sulfur dioxide in the exhaust gas, thereby realizing the detection of the exhaust gas. When the filter 19 has been used for a long time, the external water supply pipe is connected to the L-shaped pipe 12, and the external water supply pipe will transport water to the water inlet pipe 11 through the L-shaped pipe 12. And enters the connecting pipe 28, and then sprays water to the filter 19 through the nozzle 29, and at the same time starts the double-axis asynchronous motor 20, which drives the two rotating shafts 22 to rotate. The two rotating shafts 22 will drive the connecting shaft 25 to rotate through the engagement of the bevel gear 1 23 and the bevel gear 2 24. One of the connecting shafts 25 will drive the water inlet pipe 11 to rotate through the engagement of the bevel gear 24 and the bevel gear 3 26. The water inlet pipe 11 will drive the rotating ring 27 to rotate in the ring groove 17 through the connecting pipe 28, thereby expanding the water spray range of the nozzle 29. The nozzle 29 sprays water to the filter screen 19 in an all-round manner. At the same time, the other connecting shaft 25 drives the connecting rod 30 to rotate through the engagement of the bevel gear 24 and the bevel gear 4 31. The connecting rod 30 drives the U-shaped scraper 32 to rotate, so that the U-shaped scraper 32 scrapes and cleans the circumferential inner wall and the bottom inner wall of the shell 1. At the same time, the U-shaped scraper 32 drives the brush plate 33 to rotate, so that the brush plate 33 cleans the filter screen 19. During the cleaning process, the valve 15 on the water outlet pipe 16 is opened. At this time, since the nozzle 29 sprays water, the water is cleaned. The fallen dust particles will follow the water flow and be discharged from the shell 1 through the outlet pipe 16 to prevent the dust particles from accumulating in the shell 1. At the same time, the water sprayed by the nozzle 29 will clean the brush plate 33, and wash away the dust particles on the brush plate 33, thereby increasing the service life of the brush plate 33. When the filter 19 is damaged, the fixed plate 6 is disassembled from the shell 1. At this time, the arc plate 2 can be taken out from the arc groove 7. The arc plate 2 will pull the filter 19 out of the shell 1 from the arc groove 7, thereby realizing the disassembly and replacement of the filter 19.

[0036] In the description herein, it should be noted that relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, the terms "include," "comprise," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] In addition, while embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An exhaust gas detection device for thermal power generation, comprising a housing (1), characterized in that: The bottom outer wall of the shell (1) is fixedly connected to a plurality of supporting legs (5); a mounting plate (9) is fixedly connected to a position near the top of the outer wall of one side of the shell (1); a sulfur dioxide concentration detection probe (8) is fixedly connected to one side of the mounting plate (9); and the detection end of the sulfur dioxide concentration detection probe (8) passes through the mounting plate (9) and the shell (1); an annular groove (18) is provided on the inner wall of the shell (1); a filter screen (19) is provided in the annular groove (18); an air intake pipe (19) is fixedly connected to a position below the filter screen (19) on one side of the shell (1). 3), the top of the shell (1) is fixedly connected to an air outlet pipe (10), one side of the shell (1) is provided with an arc-shaped notch (7) connected to the second ring groove (18), an arc-shaped plate (2) fixed to the filter (19) is provided in the arc-shaped notch (7), one side of the arc-shaped plate (2) is fixedly connected to two fixed plates (6), both of the two fixed plates (6) are detachably connected to the shell (1) by bolts, a cleaning mechanism (14) for cleaning the filter (19) is provided in the shell (1), and sealing components are provided at the top and bottom of the arc-shaped plate (2).

2. The exhaust gas detection device for thermal power generation according to claim 1, characterized in that: The cleaning mechanism (14) comprises a U-shaped scraper (32), the bottom of the housing (1) is located at the center and is rotatably connected to a connecting rod (30) through a bearing, the U-shaped scraper (32) is fixedly connected to the top of the connecting rod (30), the U-shaped scraper (32) is in contact with the bottom inner wall and the circumferential inner wall of the housing (1), the top of the U-shaped scraper (32) is fixedly connected to a brush plate (33) in contact with the filter (19), the bottom end of the connecting rod (30) is keyed through the housing (1) and is connected to a bevel gear (31), and a spray assembly for spraying water on the filter (19) is provided in the housing (1).

3. The exhaust gas detection device for thermal power generation according to claim 2, characterized in that: The spray assembly comprises a rotating ring (27), an annular groove (17) is provided on the inner wall of the shell (1) at a position between the annular groove (18) and the sulfur dioxide concentration detection probe (8), the rotating ring (27) is rotatably connected in the annular groove (17), a plurality of evenly distributed connecting pipes (28) are fixedly connected to the circumferential inner wall of the rotating ring (27), a plurality of nozzles (29) are fixedly connected to the bottoms of the plurality of connecting pipes (28), a water inlet pipe (11) is fixedly connected between the plurality of connecting pipes (28), and the top end of the water inlet pipe (11) passes through the shell (1), the outer side of the water inlet pipe (11) is keyed to a bevel gear (26) at a position above the shell (1), and a power assembly for driving the water inlet pipe (11) and the connecting rod (30) to rotate is provided on the outer side of the shell (1).

4. The exhaust gas detection device for thermal power generation according to claim 3, characterized in that: The power assembly comprises a U-shaped seat (21), the U-shaped seat (21) is fixedly connected to the outside of the housing (1), a double-axle asynchronous motor (20) is fixedly connected inside the U-shaped seat (21), the output shafts at both ends of the double-axle asynchronous motor (20) are connected to a rotating shaft (22) through a coupling, and the rotating shaft (22) passes through the U-shaped seat (21), one end of the rotating shaft (22) is key-connected to a bevel gear 1 (23), the top outer wall and the bottom outer wall of the housing (1) are both mounted with a connecting shaft (25) through a bearing seat, and both ends of the two connecting shafts (25) are key-connected to a bevel gear 2 (24), wherein the two bevel gears 2 (24) are respectively meshed with the two bevel gears 1 (23), and the other two bevel gears 2 (24) are respectively meshed with a bevel gear 3 (26) and a bevel gear 4 (31).

5. The exhaust gas detection device for thermal power generation according to claim 4, characterized in that: The outer sides of the two rotating shafts (22) are rotatably connected to support blocks (13) via bearings, and the support blocks (13) are fixed to the housing (1). The bottom of the housing (1) is fixedly connected to a water outlet pipe (16), and a valve (15) is provided on the outer side of the water outlet pipe (16).

6. The exhaust gas detection device for thermal power generation according to claim 1, characterized in that: The sealing assembly comprises a sealing strip (36) which is fixedly connected to the outer side of the arc-shaped plate (2). The inner walls around the arc-shaped notch (7) are provided with a clamping groove (35), and the sealing strip (36) is clamped with the clamping groove (35).

7. The exhaust gas detection device for thermal power generation according to claim 3, characterized in that: The top end of the water inlet pipe (11) is sleeved with an L-shaped pipe (12); the outer side of the water inlet pipe (11) is fixedly connected to a position inside the L-shaped pipe (12) with a sealing ring (37); and the inner wall of the L-shaped pipe (12) is provided with an annular key groove (38) that matches the sealing ring (37).

8. The exhaust gas detection device for thermal power generation according to claim 1, characterized in that: A filter plate (34) is fixedly connected to a position near the top of the air outlet pipe (10), and a handle (4) is fixedly connected to one side of the arc-shaped plate (2).

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