A high-precision atmospheric pollutant monitoring sensor device

Abstract

This invention relates to the field of air pollution monitoring technology and discloses a high-precision air pollutant monitoring sensor device, including a chimney body, a switching component for pollutant monitoring, and a cleaning component for cleaning air pollutant sampling tubes. When the chimney body is not emitting exhaust gas, a first sampling tube is used to collect ambient air without emissions for testing, which can serve as a benchmark for subsequent data comparison. When the chimney body is emitting exhaust gas, a second sampling tube is used to collect samples containing emissions. Thus, the air pollutant sampling tubes can be switched according to whether exhaust gas is being emitted from the chimney body, avoiding cross-contamination between emissions and ambient air without emissions, ensuring the accuracy of the detection results. At the same time, during sampling tube switching, unused sampling tubes are stored inside the monitoring box, thus preventing dust and impurities from contaminating the unused sampling tubes and extending the service life of the equipment.

Description

Technical Field

[0001] This invention relates to the field of atmospheric pollution monitoring technology, specifically to a high-precision atmospheric pollutant monitoring sensor device. Background Technology

[0002] In recent years, with the acceleration of urbanization and the deepening of industrialization, air pollution has become increasingly prominent. In order to achieve real-time monitoring of air pollutants and help improve the urban ecological environment, air pollutant monitoring sensor equipment has been widely used.

[0003] Atmospheric pollutant monitoring sensors are not only used in urban environmental monitoring, but also cover multiple fields such as traffic pollution monitoring and industrial emission monitoring. In the field of industrial emission monitoring, for example, when industrial flue gas is emitted into the atmosphere through a chimney, atmospheric pollutant monitoring sensors are needed to strictly monitor the pollutants in the flue gas to ensure that the pollutant content is within the prescribed emission standards. At the same time, industrial chimneys are not always in a state of emitting smoke. When the chimney is not emitting smoke, the monitoring sensor also needs to collect air from the background environment for monitoring to assess the ambient air quality. If the same sampling pipe is used when the chimney is not emitting smoke and when it is emitting smoke, the residual gas collected in the previous stage will interfere with the monitoring results in the next stage, thus affecting the reliability of the monitoring data.

[0004] Meanwhile, in addition to common pollutants, the gas emitted from the chimney also contains a certain amount of tar. As a result, during the use of the air pollutant monitoring sensor equipment, the tar will gradually adhere to the sampling pipe of the sensor. At the same time, due to the height of the chimney, the daily maintenance of the sensor equipment installed at the chimney exhaust outlet is difficult, and it is impossible to clean the sampling pipe in time. This will cause a thick layer of deposits to form on the inner wall of the sampling pipe, causing blockage of the sampling pipe, affecting the sampling flow rate. In addition, the impurities in the accumulated oil will also affect the monitoring results and affect the accuracy of the monitoring results.

[0005] To address this, a high-precision atmospheric pollutant monitoring sensor device is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a high-precision atmospheric pollutant monitoring sensor device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-precision atmospheric pollutant monitoring sensor device, comprising a chimney body, wherein a switching component for pollutant monitoring is provided on the chimney body, and a cleaning component for cleaning atmospheric pollutant sampling tubes is provided on the chimney body.

[0008] Preferably, the switching component includes a monitoring box, which is fixedly connected to the outer wall of the chimney body. A rotating main shaft is rotatably connected through the inside of the monitoring box. A drive fan is fixedly connected to one end of the rotating main shaft inside the chimney body. A rotating circular block is fixedly connected to one end of the rotating main shaft inside the monitoring box. A sliding groove is linearly arranged through the inside of the rotating circular block. A linkage spring is linearly arranged inside the rotating circular block. A locking block is fixedly connected to one end of the linkage spring away from the inner wall of the rotating circular block.

[0009] Preferably, the switching assembly further includes a first gas sampling pipe, which is slidably connected to the top of the monitoring box. A second gas sampling pipe is slidably connected to the top of the monitoring box. A linkage rack is fixedly connected to the outer wall of both the first and second gas sampling pipes. A fixing plate is symmetrically fixedly connected to the outer wall of the linkage rack. A guide rod is fixedly connected to the top of each fixing plate. A sliding block is slidably connected to the surface of the guide rod. A return spring is sleeved on the surface of the guide rod.

[0010] Preferably, the switching assembly further includes a liquid guiding shell, and two liquid guiding shells are provided. The two liquid guiding shells are respectively fixedly connected to the bottom of the first gas sampling pipe and the second gas sampling pipe. A connecting plate is symmetrically fixedly connected to the outer wall of the liquid guiding shell. A fixing frame is fixedly connected to the inner wall of the monitoring box. A switching spring is fixedly connected between the corresponding side of the connecting plate and the fixing frame. A monitor is symmetrically fixedly connected inside the monitoring box.

[0011] Preferably, the rotating main shaft is rotatably connected to the inside of the chimney body, the snap-fit ​​block is slidably connected to the inside of the sliding groove, one end of the return spring is fixedly connected to the fixed plate, the other end of the return spring is fixedly connected to the sliding block, the inner wall of the liquid guide shell is provided with flow holes in a linear array, and the symmetrically arranged monitors are respectively connected to the inside of the first gas sampling pipe and the second gas sampling pipe.

[0012] Preferably, the cleaning component includes a liquid storage tank, which is symmetrically and fixedly connected to the top of the inner wall of the monitoring box. The bottom of the liquid storage tank is fixedly connected to an outlet pipe. A linkage baffle is rotatably connected through the inside of the outlet pipe. A linkage gear is fixedly connected to one end of the linkage baffle located outside the outlet pipe. Linkage gears are fixedly connected to the outer walls of both the first and second gas sampling pipes. A connecting hose is fixedly connected to the bottom of the outlet pipe.

[0013] Preferably, the cleaning assembly further includes a collection box, which is fixedly connected to the bottom of the inner wall of the monitoring box. A threaded groove is symmetrically opened through the top of the collection box, and a linkage worm gear is threadedly connected inside the threaded groove. A cleaning scraper is fixedly connected to the top of the linkage worm gear, and a cleaning sponge is fixedly connected to the outer wall of the linkage worm gear. A first pressure block is fixedly connected to the bottom of the liquid guiding shell. A connecting block is symmetrically fixedly connected to the top of the collection box, and a second pressure block is fixedly connected to the top of the connecting block. A first connecting rod is fixedly connected to the outer wall of the connecting plate corresponding to the first gas sampling pipe, and a second connecting rod is fixedly connected to the outer wall of the connecting plate corresponding to the second gas sampling pipe.

[0014] Preferably, the linkage rack and linkage gear mesh with each other, the end of the connecting hose away from the liquid outlet pipe is connected to the interior of the liquid guide shell, the symmetrically arranged linkage worm gears are respectively located at the bottom of the first gas sampling pipe and the second gas sampling pipe, the symmetrically arranged cleaning scrapers are respectively slidably connected to the interior of the first gas sampling pipe and the second gas sampling pipe, one linkage worm gear corresponding to the first gas sampling pipe is rotatably connected to the interior of the second connecting rod, and one linkage worm gear corresponding to the second gas sampling pipe is rotatably connected to the interior of the first connecting rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. When the chimney body is not emitting exhaust gas, the first sampling pipe is used to collect ambient air without emissions for testing, which can serve as a benchmark for subsequent data comparison. When the chimney body is emitting flue gas, the second sampling pipe is used to collect samples containing emissions. This allows for switching of the atmospheric pollutant sampling pipe based on whether flue gas is being emitted from inside the chimney body, avoiding cross-contamination between emissions and ambient air without emissions, and ensuring the accuracy of the test results. At the same time, when switching sampling pipes, unused sampling pipes are stored inside the monitoring box, thus preventing them from being contaminated by dust and impurities and extending the service life of the equipment.

[0017] 2. By moving the cleaning scraper upward inside the sampling tube, the oil stains adhering to the inner wall of the first gas sampling tube can be scraped off. After the oil stains are scraped off, the rotating and wiping action of the cleaning sponge soaked in cleaning solution inside the sampling tube further ensures the cleanliness of the sampling tube. Thus, during the switching of sampling tubes, the maintenance and cleaning of the sampling tube can be completed simultaneously, extending the service life of the monitoring box and reducing the frequency of manual maintenance of the monitoring box. It also avoids the clogging of the sampling tube caused by the accumulation of oil stains inside the sampling tube, ensuring the sampling flow rate and sample concentration, and avoiding the impact of impurities in the sampling tube on the test results.

[0018] 3. The cleaning sponge is re-soaked in the cleaning solution, and the first and second pressing blocks squeeze the sponge to expel the wastewater inside. This allows the sponge to be cleaned after use, extending its service life and ensuring its cleanliness with each use. The scraped-off oil and squeezed-out wastewater are collected in a collection box for later centralized treatment. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a three-dimensional schematic diagram of the switching component structure of the present invention;

[0021] Figure 3 For the present invention Figure 2 A magnified view of the structure at point A in the diagram;

[0022] Figure 4 For the present invention Figure 2 A magnified view of the structure at point B in the diagram;

[0023] Figure 5 This is a three-dimensional schematic diagram of the internal structure of the monitoring box of the present invention;

[0024] Figure 6 For the present invention Figure 5 A magnified view of the structure at point C in the diagram;

[0025] Figure 7 This is a three-dimensional schematic diagram showing the positional relationship between the monitoring box and the collection box of the present invention;

[0026] Figure 8 For the present invention Figure 7 A magnified view of the structure at point D in the diagram;

[0027] Figure 9 This is a three-dimensional schematic diagram showing the positional relationship between the cleaning sponge of the present invention and the first and second pressing blocks.

[0028] In the picture:

[0029] 1. Main body of the chimney;

[0030] The switching assembly includes: 21. Monitoring box; 22. Rotating spindle; 23. Drive fan; 24. Rotating block; 25. Sliding groove; 26. Linkage spring; 27. Snap-fit ​​block; 28. First gas sampling pipe; 29. ​​Second gas sampling pipe; 210. Linkage rack; 211. Fixing plate; 212. Guide rod; 213. Sliding block; 214. Return spring; 215. Liquid guide shell; 216. Connecting plate; 217. Fixing frame; 218. Switching spring; 219. Monitor;

[0031] The cleaning components include: 31, a liquid storage tank; 32, a liquid outlet pipe; 33, a linkage baffle; 34, a linkage gear; 35, a linkage rack; 36, a connecting hose; 37, a collection box; 38, a threaded groove; 39, a linkage worm gear; 310, a cleaning scraper; 311, a cleaning sponge; 312, a first pressing block; 313, a connecting block; 314, a second pressing block; 315, a first connecting rod; and 316, a second connecting rod. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0033] Please see Figures 1 to 9 The present invention provides an embodiment of a high-precision atmospheric pollutant monitoring sensor device, comprising a chimney body 1, a switching component for pollutant monitoring provided on the chimney body 1, and a cleaning component for cleaning atmospheric pollutant sampling tubes provided on the chimney body 1.

[0034] The switching assembly includes a monitoring box 21, which is fixedly connected to the outer wall of the chimney body 1. A rotating main shaft 22 is rotatably connected through the interior of the monitoring box 21. The rotating main shaft 22 is rotatably connected through the interior of the chimney body 1. A drive fan 23 is fixedly connected to one end of the rotating main shaft 22 inside the chimney body 1, and a rotating circular block 24 is fixedly connected to the other end of the rotating main shaft 22 inside the monitoring box 21. The interior of the rotating circular block 24 has sliding grooves 25 arranged in a linear array. A linkage spring 26 is fixedly connected to the linear array. A locking block 27 is fixedly connected to the end of the linkage spring 26 away from the inner wall of the rotating circular block 24. The locking block 27 is slidably connected to the inside of the sliding groove 25. The switching component also includes a first gas sampling pipe 28, which is slidably connected to the top of the monitoring box 21. A second gas sampling pipe 29 is slidably connected to the top of the monitoring box 21. A linkage rack 210 is fixedly connected to the outer walls of both the first gas sampling pipe 28 and the second gas sampling pipe 29. The outer walls of the linkage rack 210 are symmetrical. A fixed plate 211 is fixedly connected, and a guide rod 212 is fixedly connected to the top of the fixed plate 211. A sliding block 213 is slidably connected to the surface of the guide rod 212, and a return spring 214 is sleeved on the surface of the guide rod 212. One end of the return spring 214 is fixedly connected to the fixed plate 211, and the other end of the return spring 214 is fixedly connected to the sliding block 213. The switching assembly also includes a liquid guide shell 215. Two liquid guide shells 215 are provided, and the two liquid guide shells 215 are respectively fixedly connected to the first gas sampling pipe 28 and... At the bottom of the second gas sampling pipe 29, the inner wall of the liquid guide shell 215 is provided with flow holes in a linear array. The outer wall of the liquid guide shell 215 is symmetrically fixedly connected with connecting plates 216. The inner wall of the monitoring box 21 is fixedly connected with a fixing frame 217. A switching spring 218 is fixedly connected between the corresponding sides of the connecting plate 216 and the fixing frame 217. The monitoring device 219 is symmetrically fixedly connected inside the monitoring box 21. The symmetrically arranged monitoring devices 219 are respectively connected to the interior of the first gas sampling pipe 28 and the second gas sampling pipe 29.

[0035] Among them, the top of the first gas sampling pipe 28 and the second gas sampling pipe 29 are equipped with rain shields.

[0036] The cleaning assembly includes a liquid storage tank 31, which is symmetrically and fixedly connected to the top of the inner wall of the monitoring box 21. A liquid outlet pipe 32 is fixedly connected to the bottom of the liquid storage tank 31. A linkage baffle 33 is rotatably connected through the inside of the liquid outlet pipe 32. A linkage gear 34 is fixedly connected to one end of the linkage baffle 33 outside the liquid outlet pipe 32. Linkage racks 35 are fixedly connected to the outer walls of both the first gas sampling pipe 28 and the second gas sampling pipe 29. The linkage racks 35 mesh with the linkage gear 34. A connecting hose 36 is fixedly connected to the bottom of the liquid outlet pipe 32. The end of the connecting hose 36 away from the liquid outlet pipe 32 communicates with the inside of the liquid guide shell 215. The cleaning assembly also includes a collection box 37, which is fixedly connected to the bottom of the inner wall of the monitoring box 21. Threaded grooves 38 are symmetrically opened through the top of the collection box 37. A linkage worm gear 39 is threadedly connected inside the threaded grooves 38. The symmetrically arranged linkage worm gears 39 are located on the first gas sampling pipe. At the bottom of the first gas collection tube 28 and the second gas collection tube 29, a cleaning scraper 310 is fixedly connected to the top of the linkage worm gear 39. The symmetrically arranged cleaning scrapers 310 are slidably connected to the inside of the first gas collection tube 28 and the second gas collection tube 29, respectively. A cleaning sponge 311 is fixedly connected to the outer wall of the linkage worm gear 39. A first pressure block 312 is fixedly connected to the bottom of the liquid guide shell 215. A connecting block 313 is symmetrically fixedly connected to the top of the collection box 37. A second pressure block 314 is fixedly connected to the top of the connecting block 313. A first connecting rod 315 is fixedly connected to the outer wall of the connecting plate 216 corresponding to the first gas collection tube 28. A second connecting rod 316 is fixedly connected to the outer wall of the connecting plate 216 corresponding to the second gas collection tube 29. A linkage worm gear 39 corresponding to the first gas collection tube 28 is rotatably connected to the inside of the second connecting rod 316. A linkage worm gear 39 corresponding to the second gas collection tube 29 is rotatably connected to the inside of the first connecting rod 315.

[0037] Wherein: the liquid inside the storage tank 31 is a cleaning fluid, and the top of the symmetrically arranged cleaning scrapers 310 are respectively in contact with the inner walls of the first gas sampling pipe 28 and the second gas sampling pipe 29.

[0038] The working principle of the above implementation is as follows:

[0039] The initialization steps are as follows:

[0040] In the initial state, the drive fan 23 is stationary, the rain shield on the top of the first gas sampling pipe 28 is not in contact with the top of the monitoring box 21, the rain shield on the top of the second gas sampling pipe 29 is in contact with the top of the monitoring box 21, and the linkage baffle 33 blocks the connection between the liquid storage tank 31 and the connecting hose 36.

[0041] The operation steps are as follows:

[0042] The following is a description of the process for switching the air pollutant sampling port using the switching component:

[0043] like Figures 2 to 6 As shown, when the chimney body 1 begins to discharge flue gas to the outside, because the drive fan 23 is located inside the chimney body 1, the flue gas discharged from the chimney body 1 flows along the surface of the drive fan 23, generating a pressure difference on the blade surface. This pressure difference generates a thrust on the fan blades, pushing the drive fan 23 to start rotating. As the chimney body 1 continues to discharge flue gas, the drive fan 23 continues to rotate. The rotation of the drive fan 23 drives the rotating main shaft 22, which is fixedly connected to it, to rotate inside the monitoring box 21. The rotation of the rotating main shaft 22 drives the rotating block 24, which is fixedly connected to it, to rotate synchronously. The rotation of the rotating block 24 will engage the internal locking mechanism. Block 27 applies centrifugal force, which is an inertial force exhibited in a rotating reference frame. It always points outward from the axis of rotation and tends to move the object away from the center of rotation. Therefore, during the rotation of the rotating block 24, the locking block 27 slides inside the sliding groove 25 away from the center of the rotating block 24, stretching the linkage spring 26. Simultaneously, due to the constraint of the groove wall of the sliding groove 25, the locking block 27 slides linearly inside the sliding groove 25. When the locking block 27 slides from inside the sliding groove 25 to the outside of the rotating block 24, during the rotation of the locking block 27 with the rotating block 24, the locking block 27 will engage with the linkage rack 210. The interlocking engagement of the locking block 27 and the sliding block 213 causes the first gas sampling pipe 28 to move downwards via a linkage rack 210 fixedly connected to it. This downward movement compresses a corresponding switching spring 218. Simultaneously, the linkage rack 210 fixedly connected to the second gas sampling pipe 29 causes it to move upwards, stretching another corresponding switching spring 218. When the movement of the first and second gas sampling pipes causes the locking block 27 and the sliding block 213 to engage, the rotation of the locking block 27 pushes the sliding block 213 against the guide rod 21. The outer wall of 2 slides and compresses the return spring 214. During the rotation gap of the locking block 27, when the locking block 27 no longer adheres to the sliding block 213, the sliding block 213 slides and resets on the surface of the guide rod 212 under the elastic extension of the return spring 214. As the locking block 27 rotates, the sliding block 213 continuously repeats the above process, thus not hindering the rotation of the locking block 27. At this time, the rain shield at the top of the first gas sampling pipe 28 adheres to the top of the monitoring box 21, while the rain shield at the top of the second gas sampling pipe 29 does not adhere to the top of the monitoring box 21. The monitor 219 collects and detects the flue gas discharged from the chimney body 1 through the second gas sampling pipe 29.

[0044] When the main body of the chimney 1 stops working and no longer discharges flue gas, the drive fan 23 stops rotating, and consequently, the rotating block 24 stops rotating. At this time, the locking block 27 is no longer subjected to centrifugal force. Under the elastic contraction of the linkage spring 26, the locking block 27 slides along the sliding groove 25 into the interior of the rotating block 24. At this time, the locking block 27 no longer meshes with the sliding block 213 and the linkage rack 210. Under the elastic extension of a switching spring 218 corresponding to the first gas sampling pipe 28, the first gas sampling pipe 28 slides upward inside the monitoring box 21. Under the elastic contraction of a switching spring 218 corresponding to the second gas sampling pipe 29, the second gas sampling pipe 29 slides downward inside the monitoring box 21. At this time, the rain shield at the top of the first gas sampling pipe 28 is not in contact with the top of the monitoring box 21. The rain shield at the top of the second sampling pipe 29 is attached to the top of the monitoring box 21. The monitor 219 collects and detects air pollutants through the first sampling pipe 28. When the chimney body 1 is not emitting exhaust gas, the first sampling pipe 28 is used to collect ambient air without emissions for testing, which can be used as a benchmark for subsequent data comparison. When the chimney body 1 emits flue gas, the second sampling pipe 29 is used to collect samples containing emissions. Thus, the air pollutant sampling pipe can be switched according to whether flue gas is emitted from inside the chimney body 1, avoiding cross-contamination between emissions and ambient air without emissions, ensuring the accuracy of the test results. At the same time, when switching sampling pipes, unused sampling pipes are stored inside the monitoring box 21, so that unused sampling pipes will not be contaminated by dust and impurities, extending the service life of the equipment.

[0045] The following describes the cleaning process of the cleaning unit for cleaning the air pollutant sampling tube:

[0046] like Figures 3 to 9As shown, during the sliding switching process of the first gas sampling pipe 28 and the second gas sampling pipe 29, when the first gas sampling pipe 28 slides downward, the downward sliding of the first gas sampling pipe 28 causes the linkage gear 35 fixedly connected to it to move downward. The downward movement of the linkage gear 35 causes the linkage gear 34 meshing with it to rotate. The rotation of the linkage gear 34 causes the linkage baffle 33 fixedly connected to it to rotate synchronously. The rotation of the linkage baffle 33 makes the interior of the liquid storage tank 31 and the connecting hose 36 interconnected. The cleaning fluid inside the liquid storage tank 31 enters the interior of the liquid guide shell 215 through the connecting hose 36. At the same time, the upward sliding of the second gas sampling pipe 29 causes the linkage gear 34 meshing with it to rotate. The second connecting rod 316, which is fixedly connected to it, moves upward synchronously. The upward movement of the second connecting rod 316 drives a linkage worm gear 39 corresponding to the first gas sampling pipe 28 to move upward. The upward movement of the linkage worm gear 39 drives the cleaning scraper 310 to slide upward inside the first gas sampling pipe 28. Because the top of the cleaning scraper 310 is in contact with the inner wall of the first gas sampling pipe 28, the upward movement of the cleaning scraper 310 can scrape off the oil stains adhering to the inner wall of the first gas sampling pipe 28. At the same time, the scraped oil stains slide along the inner wall of the cleaning scraper 310 into the interior of the linkage worm gear 39, and then enter the interior of the collection box 37 through the linkage worm gear 39.

[0047] Furthermore, the upward movement of the linkage worm gear 39 causes the cleaning sponge 311 to move upward and enter the interior of the first gas sampling pipe 28. During the upward movement of the cleaning sponge 311, the cleaning fluid inside the liquid guide shell 215 enters the interior of the cleaning sponge 311 through the flow holes arrayed on the liquid guide shell 215, thus immersing the cleaning sponge 311. At the same time, because the linkage worm gear 39 is threadedly connected to the threaded groove 38, when the linkage worm gear 39 moves upward, it rotates inside the threaded groove 38. The rotation of the linkage worm gear 39 causes the cleaning sponge 311 to rotate synchronously. Therefore, the cleaning sponge 311 will rotate into the interior of the first gas sampling pipe 28, rotating and wiping away the oil stains on the inner wall of the first gas sampling pipe 28. This, combined with the cleaning scraper 310, further ensures the cleanliness of the inner wall of the first gas sampling pipe 28. When the first gas sampling pipe 28 moves to the bottom, the linkage baffle 33 rotates one revolution, sealing the connection between the liquid storage tank 31 and the connecting hose 36 again.

[0048] When the first gas sampling pipe 28 slides upward, its upward movement causes the linkage rack 35 fixedly connected to it to move upward. The upward movement of the linkage rack 35 causes the linkage gear 34 meshing with it to rotate. The rotation of the linkage gear 34 causes the linkage baffle 33 fixedly connected to it to rotate synchronously. The rotation of the linkage baffle 33 connects the interior of the liquid storage tank 31 and the connecting hose 36, allowing the cleaning fluid inside the liquid storage tank 31 to enter the interior of the liquid guide shell 215 through the connecting hose 36. Simultaneously, the downward sliding of the second gas sampling pipe 29 causes the second connecting rod 316 fixedly connected to it to move downward synchronously. The downward movement of the second connecting rod 316 causes a linkage worm gear 39 corresponding to the first gas sampling pipe 28 to rotate and move downward within the threaded groove 38. The downward movement of rod 39 causes the cleaning sponge 311 to move downward and leave the interior of the first gas sampling pipe 28. During the downward movement of the cleaning sponge 311, the cleaning fluid inside the liquid guide shell 215 enters the interior of the cleaning sponge 311 through the flow holes arrayed on the liquid guide shell 215 and soaks the cleaning sponge 311. At the same time, during the downward rotation of the cleaning sponge 311, the cleaning sponge 311 comes into contact with the first pressure block 312 and the second pressure block 314. The first pressure block 312 squeezes the cleaning sponge 311 and squeezes out the sewage inside the cleaning sponge 311. The squeezed-out sewage enters the interior of the collection box 37 through the connecting block 313, thereby ensuring the cleanliness of the cleaning sponge 311, extending the service life of the cleaning sponge 311, and ensuring the cleaning effect of the cleaning sponge 311.

[0049] Similarly, during the movement of the second gas sampling tube 29, the cleaning scraper 310 and cleaning sponge 311 corresponding to the second gas sampling tube 29 can simultaneously clean the second gas sampling tube 29. Thus, during the switching of sampling tubes, the maintenance and cleaning of the sampling tubes can be completed simultaneously, extending the service life of the monitoring box 21, reducing the frequency of manual maintenance of the monitoring box 21, and also avoiding the blockage of the sampling tube caused by the accumulation of oil stains inside the sampling tube, ensuring the sampling flow rate and sample concentration, and also avoiding the impact of impurities in the sampling tube on the test results.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision atmospheric pollutant monitoring sensor device, comprising a chimney body (1), characterized in that: The main body (1) of the chimney is provided with a switching component for pollutant monitoring and a cleaning component for cleaning the air pollutant sampling tube. The switching component includes a monitoring box (21), which is fixedly connected to the outer wall of the chimney body (1). A rotating spindle (22) is rotatably connected through the inside of the monitoring box (21). A drive fan (23) is fixedly connected to one end of the rotating spindle (22) inside the chimney body (1). A rotating block (24) is fixedly connected to one end of the rotating spindle (22) inside the monitoring box (21). A sliding groove (25) is opened through the inside of the rotating block (24) in a linear array. A linkage spring (26) is fixedly connected to the inside of the rotating block (24) in a linear array. A snap-fit ​​block (27) is fixedly connected to one end of the linkage spring (26) away from the inner wall of the rotating block (24). The switching assembly also includes a first gas sampling pipe (28), which is slidably connected to the top of the monitoring box (21). A second gas sampling pipe (29) is slidably connected to the top of the monitoring box (21). A linkage rack (210) is fixedly connected to the outer wall of both the first gas sampling pipe (28) and the second gas sampling pipe (29). A fixing plate (211) is symmetrically fixedly connected to the outer wall of the linkage rack (210). A guide rod (212) is fixedly connected to the top of each fixing plate (211). A sliding block (213) is slidably connected to the surface of the guide rod (212). A return spring (214) is sleeved on the surface of the guide rod (212). The switching assembly also includes a liquid guide shell (215), and there are two liquid guide shells (215). The two liquid guide shells (215) are respectively fixedly connected to the bottom of the first gas sampling pipe (28) and the second gas sampling pipe (29). A connecting plate (216) is symmetrically fixedly connected to the outer wall of the liquid guide shell (215). A fixing frame (217) is fixedly connected to the inner wall of the monitoring box (21). A switching spring (218) is fixedly connected between the corresponding sides of the connecting plate (216) and the fixing frame (217). A monitor (219) is symmetrically fixedly connected inside the monitoring box (21). The rotating main shaft (22) is rotatably connected to the inside of the chimney body (1). The snap-fit ​​block (27) is slidably connected to the inside of the sliding groove (25). One end of the reset spring (214) is fixedly connected to the fixed plate (211), and the other end of the reset spring (214) is fixedly connected to the sliding block (213). The inner wall of the liquid guide shell (215) is provided with flow holes in a linear array. The symmetrically arranged monitors (219) are respectively connected to the inside of the first gas sampling pipe (28) and the second gas sampling pipe (29).

2. The high-precision atmospheric pollutant monitoring sensor device according to claim 1, characterized in that: The cleaning assembly includes a storage tank (31), which is symmetrically and fixedly connected to the top of the inner wall of the monitoring box (21). The bottom of the storage tank (31) is fixedly connected to an outlet pipe (32). A linkage baffle (33) is rotatably connected through the inside of the outlet pipe (32). A linkage gear (34) is fixedly connected to one end of the linkage baffle (33) located outside the outlet pipe (32). A linkage rack (35) is fixedly connected to the outer walls of the first gas sampling pipe (28) and the second gas sampling pipe (29). A connecting hose (36) is fixedly connected to the bottom of the outlet pipe (32).

3. The high-precision atmospheric pollutant monitoring sensor device according to claim 2, characterized in that: The cleaning assembly also includes a collection box (37), which is fixedly connected to the bottom of the inner wall of the monitoring box (21). The top of the collection box (37) is symmetrically provided with threaded grooves (38). The internal threads of the threaded grooves (38) are connected to a linkage worm gear (39). The top of the linkage worm gear (39) is fixedly connected to a cleaning scraper (310). The outer wall of the linkage worm gear (39) is fixedly connected to a cleaning sponge (311). The bottom of the liquid guide shell (215) is fixedly connected to a first pressure block (312). The top of the collection box (37) is symmetrically fixedly connected to a connecting block (313). The top of the connecting block (313) is fixedly connected to a second pressure block (314). The outer wall of the connecting plate (216) corresponding to the first gas sampling pipe (28) is fixedly connected to a first connecting rod (315). The outer wall of the connecting plate (216) corresponding to the second gas sampling pipe (29) is fixedly connected to a second connecting rod (316).

4. The high-precision atmospheric pollutant monitoring sensor device according to claim 3, characterized in that: The linkage rack (35) meshes with the linkage gear (34), and the end of the connecting hose (36) away from the liquid outlet pipe (32) is connected to the interior of the liquid guide shell (215). The symmetrically arranged linkage worm gears (39) are located at the bottom of the first gas sampling pipe (28) and the second gas sampling pipe (29), respectively. The symmetrically arranged cleaning scrapers (310) are slidably connected to the interior of the first gas sampling pipe (28) and the second gas sampling pipe (29), respectively. A linkage worm gear (39) corresponding to the first gas sampling pipe (28) is rotatably connected to the interior of the second connecting rod (316), and a linkage worm gear (39) corresponding to the second gas sampling pipe (29) is rotatably connected to the interior of the first connecting rod (315).

Images