Dilution sampling probe device for online monitoring

Abstract

This utility model discloses a dilution sampling probe device for online monitoring, including a mounting box. A vacuum generator is housed inside the mounting box, and a mixing chamber is located inside the vacuum generator. A dilution gas inlet pipe is connected to the top outer wall of the mixing chamber, and an outlet pipe is connected to one outer wall of the mixing chamber. A flue gas inlet pipe is also connected to one outer wall of the mixing chamber, and a critical through-hole is connected inside the flue gas inlet pipe. The device further includes a filtering mechanism: the filtering mechanism includes a mounting frame connected to one outer wall of the mounting box, a frame on the inner wall of the mounting frame, a pull rod connected to the outer wall of the frame, and multiple equally spaced baffles connected to the inner wall of the frame. Connecting seats are connected to the two outer walls of the mounting frame. This utility model discloses a dilution sampling probe device for online monitoring, which improves the filtering effect and facilitates the collection of impurities on the baffles.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring sampling technology, and in particular to a dilution sampling probe device for online monitoring. Background Technology

[0002] In the field of environmental monitoring and pollution source control, dilution sampling probe devices are the core equipment of online monitoring systems. Their function is to extract flue gas samples from emission sources such as flues, dilute them, and then deliver them to monitoring instruments to achieve accurate analysis of pollutant concentrations.

[0003] However, most traditional dilution sampling probe devices used for online monitoring do not pre-intercept large particulate impurities in flue gas, causing large particulate impurities to directly enter the filtration device, which can easily cause the filter plate to be blocked by large particulate impurities, thus affecting the filtration effect of the flue gas to be treated. For example, when steel plants use traditional dilution sampling probe devices for online monitoring of exhaust gas, the flue gas contains a large amount of fly ash and other large particulate impurities. These impurities enter the filter plate of the device directly without being intercepted beforehand, causing rapid accumulation of dirt on the surface of the filter plate. This leads to impurities clogging the filter holes, resulting in unstable flue gas sampling flow. Consequently, the sample concentration received by the detection instrument deviates significantly from the actual emission concentration, affecting the normal operation of environmental protection supervision. Utility Model Content

[0004] This utility model discloses a dilution sampling probe device for online monitoring, which aims to solve the technical problem that most traditional dilution sampling probe devices used in online monitoring do not pre-intercept large particulate impurities in flue gas, causing large particulate impurities to directly enter the filter device, easily causing the filter plate to be blocked by large particulate impurities, thereby affecting the filtration effect of the flue gas to be treated.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A dilution sampling probe device for online monitoring includes a mounting box, inside which is a vacuum generator, and inside which is a mixing chamber. A dilution gas inlet pipe is connected to the top outer wall of the mixing chamber, and an outlet pipe is connected to one outer wall of the mixing chamber. A flue gas inlet pipe is also connected to one outer wall of the mixing chamber, and a critical through-hole is connected inside the flue gas inlet pipe. The device further includes: a filtering mechanism: the filtering mechanism includes a mounting frame connected to one outer wall of the mounting box, a frame on the inner wall of the mounting frame, a pull rod connected to the outer wall of the frame, and multiple equally spaced baffles connected to the inner wall of the frame. Connecting seats are connected to both outer walls of the mounting frame, and multiple equally spaced limiting springs are connected to one inner wall of each connecting seat. The ends of the multiple limiting springs furthest from the connecting seats are all connected to the outer wall of the same pull rod. A first filter plate is provided on the outer wall of the frame near the mounting box, and a second filter plate is connected to the outer wall of the first filter plate near the mounting box. A collection mechanism: the collection mechanism is located on the bottom outer wall of the frame.

[0006] By adopting the above technical solution, the filter mechanism includes a mounting frame connected to the outer wall of one side of the mounting box. The mounting frame provides mounting positions for the internal components. A frame is set on the inner wall of the mounting frame, providing mounting positions for multiple baffles connected to its inner wall. The baffles are used to pre-intercept large particulate impurities in the flue gas, reducing the load on subsequent filter components. A pull rod is connected through the outer wall of the frame, allowing the frame to move inside the mounting frame by pulling the pull rod. Connecting seats are connected to the outer walls of both sides of the mounting frame, fixing multiple limiting springs on their inner walls. The ends of the multiple limiting springs away from the connecting seats are connected to the outer wall of the same pull rod, thereby achieving the effect of limiting springs moving when the pull rod is... When pulled, the elastic force of the spring creates a reverse pulling force on the pull rod. When the pull rod is released, multiple limit springs use their elastic force to drive the frame inside the mounting bracket to move in the opposite direction to the force of the pull rod. This causes the frame to collide with the inner wall of one side of the mounting bracket, thereby shaking off impurities and particles from the surfaces of the multiple baffles connected to the inner wall of the frame. At this time, a first filter plate is installed on the outer wall of the frame near the mounting box. The first filter plate is used to perform primary filtration on the flue gas after initial interception by the baffles, removing medium-sized impurities. A second filter plate is connected to the outer wall of the first filter plate near the mounting box. The second filter plate is used to perform secondary filtration on the flue gas after filtration by the first filter plate.

[0007] As a further embodiment of this utility model: the collection mechanism includes a collection box connected to the bottom outer wall of the frame, the bottom outer wall of the frame is provided with an opening groove, a first sealing ring is connected to one side outer wall of the collection box, a second groove is provided on one side outer wall of the mounting bracket, the first sealing ring is connected to the inner wall of the second groove, two symmetrically distributed first partitions are connected to the inner wall of the collection box, and a second partition is connected to the inner wall of the collection box, the second partition being located below the two first partitions.

[0008] By adopting the above technical solution, the collection mechanism includes a collection box connected to the bottom outer wall of the frame. The collection box is used to receive impurities that fall off from the surfaces of multiple baffles, thereby achieving the collection of impurities. At this time, an opening groove is provided on the bottom outer wall of the frame, which provides a channel for impurities to fall from the frame and the multiple baffles connected to its inner wall into the collection box. At this time, a first sealing ring is connected to one side outer wall of the collection box. The first sealing ring is used to seal the connection gap between the collection box and the mounting frame to prevent flue gas leakage. The first sealing ring is interference-fitted to the inner wall of the second groove on one side outer wall of the mounting frame, thereby achieving the function of sealing and fixing the collection box at the same time. At this time, two symmetrically distributed first partitions connected to the inner wall of the collection box guide the impurities to fall. At the same time, the second partition connected to the inner wall of the collection box is located below the two first partitions, thereby achieving the function of introducing impurities into the bottom inner wall of the collection box.

[0009] In summary, this application includes at least one of the following beneficial technical effects: 1. Improve filtration efficiency: Multiple baffles on the inner wall of the frame pre-intercept large particles of impurities, thereby reducing the load on subsequent filtration. At this time, the first filter plate performs primary filtration on the flue gas that has been pre-treated by multiple baffles to remove medium-sized impurities. The second filter plate further performs secondary filtration, forming a graded filtration from coarse to fine, thereby improving the comprehensiveness of impurity interception. At the same time, pulling the lever and releasing it will cause the frame and baffles to collide with the inner wall of the mounting bracket under the elastic force of multiple limit springs, shaking off the impurities attached to the surface of the baffles and preventing the baffles from clogging and affecting the flow of flue gas and the interception effect, thereby improving the filtration effect of impurities in the flue gas.

[0010] 2. Facilitates the collection of impurities on the baffle. The opening slot at the bottom of the frame provides a falling channel for impurities that fall off the baffle, and the collection box collects the impurities. At this time, the first sealing ring is interference-fitted to one side of the outer wall of the mounting frame, thereby sealing the gap between the collection box and the mounting frame, preventing flue gas leakage, and fixing the collection box. The two first partitions symmetrically distributed inside the collection box and the second partition below them form a layered guiding path, so that the impurities fall into the bottom of the collection box in an orderly manner. At the same time, the two first partitions and the second partition below them together form a maze-like structure, thereby preventing the impurities falling into the collection box from flying.

[0011] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the dilution sampling probe device for online monitoring proposed in this utility model.

[0013] Figure 2 This is a side sectional view of the mounting box structure of the dilution sampling probe device for online monitoring proposed in this utility model.

[0014] Figure 3 This is a top cross-sectional view of the vacuum generator structure of the dilution sampling probe device for online monitoring proposed in this utility model.

[0015] Figure 4 This is a schematic diagram of the mounting frame structure of the dilution sampling probe device for online monitoring proposed in this utility model.

[0016] Figure 5 This is a schematic diagram of the frame structure of the dilution sampling probe device for online monitoring proposed in this utility model.

[0017] Figure 6 This is a schematic diagram of the first filter plate structure of the dilution sampling probe device for online monitoring proposed in this utility model.

[0018] Figure 7 For the present utility model in Figure 4 A magnified structural diagram of point A in the middle.

[0019] In the attached diagram: 1. Mounting box; 2. Mounting bracket; 3. Flue gas guide pipe; 4. Critical through hole; 5. Flue gas inlet pipe; 6. Vacuum generator; 7. Mixing chamber; 8. Dilute gas inlet pipe; 9. Outlet pipe; 10. Frame; 11. Baffle; 12. Connecting seat; 13. Limiting spring; 14. Pull rod; 15. Collection box; 16. First partition; 17. Second partition; 18. First sealing ring; 19. First filter plate; 20. Second filter plate; 21. Second sealing ring; 22. Limiting groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 A dilution sampling probe device for online monitoring includes a mounting box 1, inside which is a vacuum generator 6, and inside which is a mixing chamber 7. A dilution gas inlet pipe 8 is connected to the top outer wall of the mixing chamber 7, and an outlet pipe 9 is connected to one side outer wall of the mixing chamber 7. A flue gas inlet pipe 5 is connected to one side outer wall of the mixing chamber 7, and a critical through-hole 4 is connected inside the flue gas inlet pipe 5. The device also includes a filtering mechanism: the filtering mechanism includes a mounting bracket 2 connected to one side outer wall of the mounting box 1, and a frame 10 is provided on the inner wall of the mounting bracket 2. A pull rod 14 is connected to the wall. Multiple baffles 11 are evenly distributed on the inner wall of the frame 10. Connecting seats 12 are connected to the outer walls on both sides of the mounting bracket 2. Multiple limiting springs 13 are evenly distributed on one inner wall of the connecting seat 12. The ends of the multiple limiting springs 13 away from the connecting seat 12 are all connected to the outer wall of the same pull rod 14. A first filter plate 19 is provided on the outer wall of the frame 10 near the mounting box 1. A second filter plate 20 is connected to the outer wall of the first filter plate 19 near the mounting box 1. Collection mechanism: The collection mechanism is located on the bottom outer wall of the frame 10.

[0022] Specifically, the filtration mechanism includes a mounting frame 2 connected to the outer wall of one side of the mounting box 1. The mounting frame 2 provides mounting positions for the internal components. A frame 10 is installed on the inner wall of the mounting frame 2, providing mounting positions for multiple baffles 11 connected to its inner wall. The baffles 11 are used to pre-intercept large particulate impurities in the flue gas, reducing the load on subsequent filtration components. A pull rod 14 is connected through the outer wall of the frame 10, allowing the frame 10 to move inside the mounting frame 2 by pulling the pull rod 14. Connecting seats 12 are connected to the outer walls of both sides of the mounting frame 2, fixing multiple limiting springs 13 on their inner walls. The ends of the multiple limiting springs 13 away from the connecting seats 12 are connected to the outer wall of the same pull rod 14, thus ensuring that the limiting springs 13 are positioned when the pull rod 14 is pulled. The frame 10 is pulled in the opposite direction by its own elastic force on the pull rod 14. When the pull rod 14 is released, the multiple limit springs 13 drive the frame 10 to move in the opposite direction to the force of the pull rod 14 inside the mounting frame 2. The frame 10 then collides with the inner wall of one side of the mounting frame 2, thereby shaking off the impurities and particles on the surface of the multiple baffles 11 connected to the inner wall of the frame 10. At this time, a first filter plate 19 is provided on the outer wall of the frame 10 near the mounting box 1. The first filter plate 19 is used to perform primary filtration on the flue gas after the initial interception by the baffles 11 to remove medium-sized impurities. A second filter plate 20 is connected to the outer wall of the first filter plate 19 near the mounting box 1. The second filter plate 20 is used to perform secondary filtration on the flue gas after the first filter plate 19.

[0023] In this design, multiple filter holes are evenly distributed on one side of the outer wall of the first filter plate 19 and the second filter plate 20. The diameter of the multiple filter holes evenly distributed on one side of the outer wall of the first filter plate 19 is larger than the diameter of the multiple filter holes evenly distributed on one side of the outer wall of the second filter plate 20. At this time, the multiple filter holes evenly distributed on one side of the outer wall of the first filter plate 19 and the second filter plate 20 are used to allow flue gas to pass through and intercept impurities, thereby achieving the filtering effect. At this time, the diameter of the multiple filter holes evenly distributed on one side of the outer wall of the first filter plate 19 is larger than the diameter of the multiple filter holes evenly distributed on one side of the outer wall of the second filter plate 20, thereby achieving the effect of the first filter plate 19 filtering large particles first and then the second filter plate 20 filtering small particles.

[0024] Specifically, the inner walls of both sides of the mounting frame 2 are provided with two symmetrically distributed limiting grooves 22. The inner walls of two limiting grooves 22 are connected to the outer wall of the first filter plate 19, and the inner walls of the other two limiting grooves 22 are connected to the outer wall of the second filter plate 20. A second sealing ring 21 is connected to one side of the outer wall of both the first filter plate 19 and the second filter plate 20. Two first grooves are provided on one side of the outer wall of the mounting frame 2, and two second sealing rings 21 are respectively connected to the inner walls of the two first grooves. The four limiting grooves 22 are respectively used to guide the first... As the filter plate 19 and the second filter plate 20 move, a second sealing ring 21 is connected to one side of the outer wall of both the first filter plate 19 and the second filter plate 20. The second sealing ring 21 is used to seal the connection gap between the first filter plate 19 and the second filter plate 20 and the mounting frame 2, preventing flue gas from leaking from the gap. At this time, two first grooves are provided on one side of the outer wall of the mounting frame 2, and the two second sealing rings 21 are respectively interference-fitted to the inner walls of the two first grooves on one side of the outer wall of the mounting frame 2, thereby achieving sealing while fixing the first filter plate 19 and the second filter plate 20.

[0025] In particular, the baffle 11 has a double arc structure, which makes it easier for impurities attached to it to fall off the surface.

[0026] Reference Figure 4 and Figure 5 In a preferred embodiment, the collection mechanism includes a collection box 15 connected to the bottom outer wall of the frame 10. The bottom outer wall of the frame 10 is provided with an opening groove. A first sealing ring 18 is connected to one side outer wall of the collection box 15. A second groove is provided on one side outer wall of the mounting bracket 2. The first sealing ring 18 is connected to the inner wall of the second groove. Two symmetrically distributed first partitions 16 are connected to the inner wall of the collection box 15. A second partition 17 is connected to the inner wall of the collection box 15. The second partition 17 is located below the two first partitions 16.

[0027] Specifically, the collection mechanism includes a collection box 15 connected to the bottom outer wall of the frame 10. The collection box 15 is used to receive impurities that fall off the surfaces of multiple baffles 11, thereby achieving the collection of impurities. At this time, an opening groove is provided on the bottom outer wall of the frame 10, which provides a channel for impurities to fall from the frame 10 and the multiple baffles 11 connected to its inner wall into the collection box 15. At this time, a first sealing ring 18 is connected to one side outer wall of the collection box 15. The first sealing ring 18 is used to seal the connection gap between the collection box 15 and the mounting frame 2 to prevent flue gas leakage. The first sealing ring 18 is interference-fitted to the inner wall of the second groove on one side outer wall of the mounting frame 2, thereby achieving the function of sealing and fixing the collection box 15 at the same time. At this time, two symmetrically distributed first partitions 16 connected to the inner wall of the collection box 15 guide the impurities to fall. At the same time, the second partition 17 connected to the inner wall of the collection box 15 is located below the two first partitions 16, thereby achieving the function of introducing impurities into the bottom inner wall of the collection box 15.

[0028] It should be noted that filter cotton with a porous structure can be laid flat on the bottom inner wall of the collection box 15 to adsorb impurity particles in the collection box 15, thereby further preventing impurities from being blown away by airflow.

[0029] The two first partitions 16 are tilted at an angle of 30 degrees, and the second partition 17 is an angular structure. Together, the two first partitions 16 and the second partition 17 located below them form a maze-like structure, thereby preventing impurities that fall into the collection box 15 from flying away.

[0030] Reference Figure 1 , Figure 2 and Figure 3 In a preferred embodiment, the outer wall of the mounting bracket 2 away from the mounting box 1 is connected to a flue gas guide pipe 3, and the diameter of the middle section of the exhaust pipe 9 is smaller than the diameter of the two ends.

[0031] Specifically, a flue gas guide pipe 3 is connected to the outer wall of the mounting frame 2 on the side away from the mounting box 1. The flue gas guide pipe 3 is used to introduce the flue gas in the flue into the mounting frame 2 to provide the flue gas source to be treated for the filtration mechanism. At this time, the diameter of the middle section of the outlet pipe 9 is smaller than the diameter of the two ends. The reduced diameter of the middle section can increase the flow velocity of the flue gas in the outlet pipe 9, enhance the kinetic energy of the air, and reduce the retention of the flue gas in the pipe. At the same time, the Venturi effect is used to help stabilize the pressure of the subsequent gas path and ensure that the mixed flue gas enters the analyzer smoothly.

[0032] Working principle: In use, the flue gas to be tested is first introduced into the mounting frame 2 through the flue gas guide pipe 3. At this time, multiple equally spaced double-arc baffles 11 connected to the inner wall of the frame 10 will first come into contact with the flue gas. As the flue gas flows through, the baffles 11 pre-intercept larger impurities in the flue gas, thereby reducing the filtration load of the subsequent first filter plate 19 and second filter plate 20. The double-arc baffles 11 can reduce the adhesion and residue of impurities, making it easier for them to fall off later. At this time, the first filter plate 19 and the second filter plate 20 are sequentially arranged behind the frame 10. The two are limited by four symmetrical limiting grooves 22 on the inner walls of both sides of the mounting frame 2. The filter hole diameter of the first filter plate 19 is larger than that of the second filter plate 20. This allows the flue gas, after being pre-intercepted by the baffle 11, to first pass through the first filter plate 19, whose filter holes intercept medium-sized impurities, and then flow through the second filter plate 20 to intercept fine-sized impurities. This ensures that impurities of different sizes can be effectively intercepted. Simultaneously, the second sealing rings 21 on one side of the outer walls of the first filter plate 19 and the second filter plate 20 are interference-fitted to the inner walls of the two first grooves of the mounting frame 2. This seals the connection gap between the filter plates and the mounting frame 2, preventing leakage of unfiltered flue gas, and also secures the first filter plate 19 and the second filter plate 20 through the interference fit. At this time, multiple limiting springs 13 are fixed to one side of the inner wall of the connecting seats 12 on both sides of the mounting frame 2, and the other ends of the multiple limiting springs 13 are all connected to the tension rings on the outer wall of the frame 10. When there are many impurities attached to the surface of the baffle 11, manually pulling the rod 14 causes the frame 10 to move synchronously with the rod 14. At this time, the limit spring 13 is stretched and generates a reverse elastic force. When the rod 14 is released, the elastic force of the limit spring 13 causes the frame 10 to quickly return to its original position, causing the frame 10 to vibrate by colliding with the inner wall of the mounting frame 2. This shakes off the impurities attached to the surface of the baffle 11, preventing the baffle 11 from clogging and affecting the flow of flue gas and the interception effect. Secondly, the opening groove on the bottom outer wall of the frame 10 provides a falling channel for the impurities. The shaken-off impurities fall into the collection box 15 through the opening groove. At this time, the first sealing ring 18 on one side of the outer wall of the collection box 15 is interference-fitted to the inner wall of the second groove of the mounting frame 2, thereby sealing the collection box 15. The gap between the mounting bracket 2 and the collection box 15 prevents flue gas leakage and simultaneously secures the collection box 15. At this time, two symmetrically distributed first partitions 16 and their lower second partitions 17 form a layered guiding path within the collection box 15, ensuring that impurities fall orderly into the bottom of the collection box 15. Simultaneously, the two first partitions 16 and the lower second partition 17 together form a maze-like structure, preventing impurities falling into the collection box 15 from becoming airborne. The filtered flue gas enters the vacuum generator 6 inside the mounting box 1 through the flue gas inlet pipe 5. The critical through-hole 4 within the flue gas inlet pipe 5 controls the flue gas flow rate, ensuring sampling accuracy. Diluent gas is then introduced through the diluent gas inlet pipe 8 connected to the top of the mixing chamber 7 inside the vacuum generator 6.The dilution gas and flue gas are thoroughly mixed in mixing chamber 7, reducing the concentration of pollutants in the flue gas to within the detectable range of the monitoring instrument. The mixed flue gas is then output through outlet pipe 9. The diameter of the middle section of outlet pipe 9 is smaller than that at both ends, thereby increasing the flow velocity of the flue gas within the pipe. Simultaneously, the Venturi effect is utilized to stabilize the pressure in the subsequent gas path, ensuring that the mixed flue gas smoothly enters the monitoring instrument and guaranteeing the accuracy of the monitoring data.

[0033] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A dilution sampling probe device for online monitoring, comprising a mounting box (1), wherein a vacuum generator (6) is disposed inside the mounting box (1), a mixing chamber (7) is disposed inside the vacuum generator (6), a dilution gas inlet pipe (8) is connected to the top outer wall of the mixing chamber (7), an outlet pipe (9) is connected to one side outer wall of the mixing chamber (7), a flue gas inlet pipe (5) is connected to one side outer wall of the mixing chamber (7), and a critical through hole (4) is connected inside the flue gas inlet pipe (5), characterized in that, Also includes: Filtering mechanism: The filtering mechanism includes a mounting frame (2) connected to the outer wall of one side of the mounting box (1). The inner wall of the mounting frame (2) is provided with a frame (10). The outer wall of the frame (10) is connected with a pull rod (14). The inner wall of the frame (10) is connected with a plurality of equally spaced baffles (11). The outer walls of both sides of the mounting frame (2) are connected with connecting seats (12). The inner wall of one side of the connecting seat (12) is connected with a plurality of equally spaced limiting springs (13). The ends of the plurality of limiting springs (13) away from the connecting seat (12) are all connected to the outer wall of the same pull rod (14). The outer wall of the frame (10) near the mounting box (1) is provided with a first filter plate (19). The outer wall of the first filter plate (19) near the mounting box (1) is connected with a second filter plate (20). Collection mechanism: The collection mechanism is located on the bottom outer wall of the frame (10).

2. A dilution sampling probe device for online monitoring according to claim 1, characterized in that, The first filter plate (19) and the second filter plate (20) have multiple filter holes distributed at equal intervals on one side of their outer walls. The diameter of the multiple filter holes distributed at equal intervals on one side of the outer wall of the first filter plate (19) is larger than the diameter of the multiple filter holes distributed at equal intervals on one side of the outer wall of the second filter plate (20).

3. The dilution sampling probe apparatus for online monitoring of claim 1, wherein, The mounting bracket (2) has two symmetrically distributed limiting grooves (22) on its inner walls on both sides. The inner walls of the two limiting grooves (22) are connected to the outer wall of the first filter plate (19), and the inner walls of the other two limiting grooves (22) are connected to the outer wall of the second filter plate (20). The outer walls of the first filter plate (19) and the second filter plate (20) are connected to a second sealing ring (21). The outer wall of the mounting bracket (2) has two first grooves on one side, and the two second sealing rings (21) are respectively connected to the inner walls of the two first grooves.

4. The dilution sampling probe device for online monitoring according to claim 1, characterized in that, The baffle (11) has a double arc structure.

5. The dilution sampling probe apparatus for online monitoring of claim 1, wherein, The collection mechanism includes a collection box (15) connected to the bottom outer wall of the frame (10). The bottom outer wall of the frame (10) is provided with an opening groove. A first sealing ring (18) is connected to one side outer wall of the collection box (15). A second groove is provided on one side outer wall of the mounting bracket (2). The first sealing ring (18) is connected to the inner wall of the second groove. Two symmetrically distributed first partitions (16) are connected to the inner wall of the collection box (15). A second partition (17) is connected to the inner wall of the collection box (15). The second partition (17) is located below the two first partitions (16).

6. A dilution sampling probe arrangement for use in online monitoring according to claim 5, characterised in that, The two first partitions (16) are tilted at an angle of thirty degrees, and the second partition (17) is an angular structure.

7. The dilution sampling probe apparatus for online monitoring of claim 1, wherein, The mounting bracket (2) has a flue gas guide pipe (3) connected to the outer wall of the side away from the mounting box (1), and the diameter of the middle section of the exhaust pipe (9) is smaller than the diameter of the two ends.

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