A flue gas analyzer with sampling backpurging

Abstract

The utility model provides a kind of with sampling back purging flue gas analyzer, it is related to flue gas analyzer technical field, including flue gas analyzer and back purging structure, sampling outer cylinder is provided with inner detection cylinder, and the upper end of inner detection cylinder is provided with back purging structure, the upper portion of back purging structure is provided with outer air extraction structure, and outer air extraction structure and back purging structure are split connection between, the inside of inner detection cylinder is equipped with detection probe, and the lower end of inner detection cylinder is provided with mounting plate, and the lower end of detection probe is provided with connecting line, and connecting line and central processing unit in flue gas analyzer are electrically connected.The utility model is convenient and fast to take flue gas sample into inner detection cylinder to carry out accurate analysis, after analysis is completed, back purging processing can be carried out, it is helpful to blow away and scrape off the dust adhered in sampling process, back purging structure and outer air extraction structure can also be separately removed cleaning or overhaul maintenance, more safe and durable.

Description

Technical Field

[0001] This utility model relates to the field of flue gas analyzer technology, specifically to a flue gas analyzer with sampling backflushing. Background Technology

[0002] The flue gas analyzer with ceramic flue gas sampling tube is used to measure the content of flue gas such as CO2, CO, NOx, and SO2. The existing device requires the staff to hold the analyzer at all times, which is inconvenient, and the exhaust tube is long and inconvenient to store.

[0003] The specification of a flue gas analyzer with a ceramic flue gas sampling tube in the prior art (publication number CN221351382U) mentions that "the adjustment mechanism includes a clamping plate, a slide rail, a first slider, an expansion plate, a second slider, a locking block, a positioning block, and a driving assembly. The slide rail is fixedly connected to the analyzer body and is located on one side of the analyzer body. The driving assembly is connected to the slide rail and is located on one side of the slide rail. The clamping plate is connected to the driving assembly and is located on one side of the driving assembly. The expansion plate is slidably connected to the clamping plate and is located on the inner wall of the clamping plate." The first slider is fixedly connected to the expansion plate and located on one side of the expansion plate. The second slider is slidably connected to the first slider and located on the inner side wall of the first slider. The snap-fit ​​block is rotatably connected to the second slider and located on one side of the second slider. The positioning block is snap-fitted to the snap-fit ​​block and slidably connected to the second slider and located on one side of the second slider. However, the ceramic flue gas sampling tube in the prior art will have dust sticking and clogging during long-term use, which is inconvenient to clean, affects subsequent flue gas sampling and analysis, is not accurate and practical, and is not durable. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, a flue gas analyzer with sampling backflushing is provided to solve the problems of existing ceramic flue gas sampling tubes being clogged with dust and smoke during long-term use, which is inconvenient to clean, affects subsequent flue gas sampling and analysis, and is not accurate, practical, or durable.

[0005] To achieve the above objectives, a flue gas analyzer with sampling backflushing is provided, comprising a flue gas analyzer and a backflushing structure. An LCD screen is provided on the upper part of the front side of the flue gas analyzer, and a control panel is provided on the lower part of the front side of the flue gas analyzer. A top base is provided on the top of the flue gas analyzer, and a sampling outer cylinder is installed in the middle of the top base. An inner detection cylinder is provided inside the sampling outer cylinder, and a backflushing structure is fitted onto the upper end of the inner detection cylinder. An external air extraction structure is fitted onto the upper part of the backflushing structure, and the external air extraction structure and the backflushing structure are detachably connected.

[0006] Furthermore, the flue gas analyzer is provided with side ventilation frames on both the left and right sides, and multiple sets of inclined plates are provided inside the side ventilation frames. The bottom of the flue gas analyzer is provided with a lower air inlet hood.

[0007] Furthermore, a turbine fan is installed on the inner top of the lower air inlet hood, and a dehumidifier is provided at the lower part of the lower air inlet hood. The lower air inlet hood is connected to the internal cavity of the flue gas analyzer.

[0008] Furthermore, the flue gas analyzer is fixed with horizontal fixing plates on both the left and right sides, and a side protective frame is fixed to the outer end of the horizontal fixing plate. The lower end of the side protective frame is fixed to the base, and a pad made of rubber is provided on the bottom surface of the base.

[0009] Furthermore, a detection probe is installed inside the inner detection cylinder, and a mounting plate is provided at the lower end of the inner detection cylinder. A connecting wire is provided at the lower end of the detection probe, and the connecting wire is electrically connected to the central processing unit inside the flue gas analyzer.

[0010] Furthermore, the upper inner side of the back-blowing structure is provided with an upper groove, and the lower part of the back-blowing structure is provided with an inner sealing plug. A middle connecting sleeve is provided inside the inner sealing plug. A blower is installed at the lower part of the middle connecting sleeve, and a rotating shaft is installed at the center of the front part of the blower. An outer connecting rod is fixed at the upper part of the rotating shaft. The upper part of the outer connecting rod is fitted into the center of the filter screen, and scrapers are fixed on both the left and right sides of the upper end of the outer connecting rod. The scrapers are set to contact the outer surface of the filter screen.

[0011] Furthermore, the lower part of the external air extraction structure is fitted into the upper groove, and a guide pipe is provided in the middle of the external air extraction structure, and an exhaust fan is provided in the upper part of the external air extraction structure.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model facilitates the extraction of cold outside air into the flue gas analyzer through the turbine fan inside the lower air inlet hood, and then the dissipation of internal hot air from the side ventilation frames on the left and right sides of the flue gas analyzer, making ventilation and heat dissipation faster and more convenient.

[0014] 2. This utility model utilizes the side protective frames and horizontal fixing plates on the left and right sides of the flue gas analyzer for installation protection, and the pads under the base are designed to maintain safety and stability during sampling and testing.

[0015] 3. The outer sampling cylinder in this utility model facilitates real-time detection and analysis of the flue gas entering the inner sampling cylinder using a detection probe. The analyzed data is transmitted to the central processing unit in the flue gas analyzer via a connecting line, and then displayed on the LCD screen after analysis and processing by the central processing unit. This makes flue gas sampling and analysis faster and more accurate.

[0016] 4. The internal blower of the back-blowing structure of this utility model can blow air outward after the flue gas sampling and analysis is completed, driving the external connecting rod and scraper to rotate synchronously. This not only blows away the dust stuck on the filter screen, but also allows the scraper to scrape away the dust that is not easily blown away from the outer surface of the filter screen while rotating, so as to avoid clogging of subsequent flue gas sampling, making it more convenient and practical.

[0017] 5. The external exhaust structure of this utility model can be used to extract flue gas by using an exhaust fan when sampling flue gas, and then guide the flue gas into the inner detection cylinder through the guide tube, which is more convenient and time-saving. Moreover, both the back-flushing structure and the external exhaust structure are detachable, which makes it convenient to clean or repair the sampling outer cylinder, back-flushing structure and external exhaust structure separately after use, making them more durable. Attached Figure Description

[0018] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the sampling outer cylinder according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the backflushing structure according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the external air extraction structure of an embodiment of the present utility model.

[0023] In the diagram: 1. Flue gas analyzer; 10. Top mount; 11. Side ventilation frame; 12. Inclined plate; 13. Side protective frame; 14. Horizontal fixing plate; 15. Base; 16. Gasket; 17. Lower air inlet hood; 18. Turbine fan; 19. Dehumidifier; 100. LCD screen; 101. Control panel; 2. Sampling outer cylinder; 20. Inner detection cylinder; 21. Detection probe; 22. Mounting plate; 23. Connecting wire; 3. Backflushing structure; 30. Upper groove; 31. Inner sealing plug; 32. Middle connecting sleeve; 33. Blower; 34. Rotating shaft; 35. Outer connecting rod; 36. Scraper; 37. Filter screen; 4. External exhaust structure; 40. Guide tube; 41. Exhaust fan. Detailed Implementation

[0024] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Specific details, such as particular system structures and technologies, are provided to facilitate a more thorough understanding of the embodiments of the present utility model. The described embodiments are some, but not all, of the embodiments disclosed herein. However, those skilled in the art should understand that the present utility model can also be implemented in other embodiments without these specific details. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0025] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model. Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present utility model. Figure 3 This is a schematic diagram of the sampling outer cylinder according to an embodiment of the present utility model. Figure 4 This is a schematic diagram of the backflushing structure according to an embodiment of the present utility model. Figure 5 This is a schematic diagram of the external air extraction structure of an embodiment of the present utility model.

[0027] Reference Figures 1 to 5 As shown, this utility model provides a flue gas analyzer with sampling backflushing, including a flue gas analyzer 1 and a backflushing structure 3. The upper part of the front side of the flue gas analyzer 1 is provided with an LCD screen 100, and the lower part of the front side of the flue gas analyzer 1 is provided with a control panel 101. The top of the flue gas analyzer 1 is provided with a top seat 10, and a sampling outer cylinder 2 is installed in the middle of the top seat 10. An inner detection cylinder 20 is provided inside the sampling outer cylinder 2, and the backflushing structure 3 is sleeved at the upper port of the inner detection cylinder 20. An external air extraction structure 4 is sleeved on the upper part of the backflushing structure 3, and the external air extraction structure 4 and the backflushing structure 3 are detachably connected.

[0028] In this embodiment, the flue gas analyzer 1 is provided with side ventilation frames 11 on both the left and right sides, and multiple sets of inclined plates 12 are provided inside the side ventilation frames 11. The bottom of the flue gas analyzer 1 is provided with a lower air inlet hood 17. A turbine fan 18 is installed on the inner top of the lower air inlet hood 17, and a dehumidifier 19 is provided at the lower part of the lower air inlet hood 17. The lower air inlet hood 17 is connected to the internal cavity of the flue gas analyzer 1.

[0029] As a preferred embodiment, this utility model facilitates the extraction of cold outside air into the flue gas analyzer 1 through the turbine fan 18 inside the lower air inlet shroud 17, and then the dissipation of internal hot air from the side ventilation frames 11 on the left and right sides of the flue gas analyzer 1, making ventilation and heat dissipation faster and more convenient.

[0030] In this embodiment, horizontal fixing plates 14 are fixed on both the left and right sides of the flue gas analyzer 1, and a side protective frame 13 is fixed to the outer end of the horizontal fixing plate 14. The lower end of the side protective frame 13 is fixed on the base 15, and a gasket 16 is provided on the bottom surface of the base 15. The gasket 16 is made of rubber.

[0031] As a preferred embodiment, this utility model utilizes the side protective frames 13 and horizontal fixing plates 14 on the left and right sides of the flue gas analyzer 1 for installation and protection, and the pads 16 under the base 15 are set to maintain safety and stability during sampling and testing.

[0032] In this embodiment, a detection probe 21 is installed inside the inner detection cylinder 20, and a mounting plate 22 is provided at the lower end of the inner detection cylinder 20. A connecting line 23 is provided at the lower end of the detection probe 21, and the connecting line 23 is electrically connected to the central processing unit inside the flue gas analyzer 1.

[0033] As a preferred embodiment, the sampling outer cylinder 2 in this utility model facilitates the real-time detection and analysis of the flue gas entering the inner detection cylinder 20 using the detection probe 21. The analyzed data is transmitted to the central processing unit in the flue gas analyzer 1 via the connecting line 23, and then displayed on the LCD screen 100 under the analysis and processing of the central processing unit, making the flue gas sampling and analysis faster and more accurate.

[0034] In this embodiment, the upper inner side of the backflushing structure 3 is provided with an upper groove 30, and the lower part of the backflushing structure 3 is provided with an inner sealing plug 31. The inner side of the inner sealing plug 31 is provided with a middle connecting sleeve 32. The lower part of the middle connecting sleeve 32 is equipped with a blower 33, and the front center of the blower 33 is equipped with a rotating shaft 34. The upper part of the rotating shaft 34 is fixed with an outer connecting rod 35. The upper part of the outer connecting rod 35 is fitted into the center of the filter screen 37, and scrapers 36 are fixed on both the left and right sides of the upper end of the outer connecting rod 35. The scrapers 36 are in contact with the outer surface of the filter screen 37.

[0035] As a preferred embodiment, the internal blower 33 of the back-blowing structure 3 of this utility model can blow air outward after the flue gas sampling and analysis is completed, thereby driving the external connecting rod 35 and scraper 36 to rotate synchronously. This not only blows away the dust stuck on the filter screen 37, but also allows the scraper 36 to scrape away the dust that is not easily blown away from the outer surface of the filter screen 37 while rotating, so as to avoid subsequent dust sampling blockage, making it more convenient and practical.

[0036] In this embodiment, the lower part of the external air extraction structure 4 is fitted into the upper groove 30, and a guide pipe 40 is provided in the middle of the external air extraction structure 4, and an exhaust fan 41 is provided in the upper part of the external air extraction structure 4.

[0037] As a preferred embodiment, the external exhaust structure 4 of this utility model can be used to extract flue gas by using a fan 41 when sampling flue gas, and then guide the flue gas into the inner detection cylinder 20 through the guide tube 40. This is more convenient and saves time. Moreover, both the backflush structure 3 and the external exhaust structure 4 are detachable structures, which makes it convenient to clean or repair the sampling outer cylinder 2, the backflush structure 3 and the external exhaust structure 4 separately after use, making them more durable.

[0038] This invention effectively solves the problems of existing ceramic flue gas sampling tubes, which suffer from dust accumulation and blockage during long-term use, making cleaning difficult, affecting subsequent flue gas sampling and analysis, and resulting in inaccurate and impractical results. This invention facilitates rapid and convenient sampling of flue gas samples into the inner detection cylinder for accurate analysis. After analysis, a backflushing process can be performed to help blow away and scrape off the dust that adhered during sampling. The backflushing structure and external extraction structure can also be disassembled, cleaned, or repaired separately, making it safer and more durable.

[0039] The above embodiments are used to explain and illustrate the present utility model, and not to limit the utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims should be included within the protection scope of the present utility model.

Claims

1. A flue gas analyzer with sampling backflush, characterized in that: The instrument includes a flue gas analyzer (1) and a backflush structure (3). The upper part of the front side of the flue gas analyzer (1) is provided with an LCD screen (100), and the lower part of the front side of the flue gas analyzer (1) is provided with a control panel (101). The top of the flue gas analyzer (1) is provided with a top seat (10), and a sampling outer cylinder (2) is installed in the middle of the top seat (10). An inner detection cylinder (20) is provided inside the sampling outer cylinder (2), and a backflush structure (3) is sleeved at the upper end of the inner detection cylinder (20). An external air extraction structure (4) is sleeved on the upper part of the backflush structure (3), and the external air extraction structure (4) and the backflush structure (3) are connected separately.

2. The flue gas analyzer with sampling backflushing according to claim 1, characterized in that, The flue gas analyzer (1) is provided with side ventilation frames (11) on both the left and right sides, and multiple sets of inclined plates (12) are provided in the side ventilation frames (11), and a lower air inlet hood (17) is provided at the bottom of the flue gas analyzer (1).

3. A flue gas analyzer with sampling backflushing according to claim 2, characterized in that, A turbine fan (18) is installed on the inner top of the lower air intake hood (17), and a dehumidifier (19) is provided at the lower part of the lower air intake hood (17). The lower air intake hood (17) is connected to the internal cavity of the flue gas analyzer (1).

4. A flue gas analyzer with sampling backflushing according to claim 1, characterized in that, The flue gas analyzer (1) has horizontal fixing plates (14) fixed on both the left and right sides, and the outer end of the horizontal fixing plate (14) is fixed with a side protective frame (13). The lower end of the side protective frame (13) is fixed on the base (15). The bottom surface of the base (15) is provided with a gasket (16), which is made of rubber.

5. A flue gas analyzer with sampling backflushing according to claim 1, characterized in that, The inner detection cylinder (20) is equipped with a detection probe (21), and the lower end of the inner detection cylinder (20) is provided with a mounting plate (22), and the lower end of the detection probe (21) is provided with a connecting line (23), which is electrically connected to the central processing unit inside the flue gas analyzer (1).

6. A flue gas analyzer with sampling backflushing according to claim 1, characterized in that, The upper inner side of the back-blowing structure (3) is provided with an upper groove (30), and the lower part of the back-blowing structure (3) is provided with an inner sealing plug (31). The inner side of the inner sealing plug (31) is provided with a middle connecting sleeve (32). The lower part of the middle connecting sleeve (32) is equipped with a blower (33), and the front center of the blower (33) is equipped with a rotating shaft (34). The upper part of the rotating shaft (34) is fixed with an outer connecting rod (35). The upper part of the outer connecting rod (35) is fitted into the center of the filter screen (37), and scrapers (36) are fixed on both the left and right sides of the upper end of the outer connecting rod (35). The scrapers (36) are in contact with the outer surface of the filter screen (37).

7. A flue gas analyzer with sampling backflushing according to claim 1, characterized in that, The lower part of the external exhaust structure (4) is fitted into the upper groove (30), and a guide pipe (40) is provided in the middle of the external exhaust structure (4), and an exhaust fan (41) is provided in the upper part of the external exhaust structure (4).

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