Compressed air water removal structure for real-time flue gas monitoring

Abstract

The utility model discloses a compressed air water removal structure for real-time flue gas monitoring, which relates to the technical field of flue gas monitoring and comprises two water removal tanks for removing water in compressed air and an automatic alternate replacement unit for automatically and alternately carrying out water removal operation on the two water removal tanks, and air inlet branch pipes and air outlet branch pipes are arranged at the upper ends of the two water removal tanks correspondingly, the two air inlet branch pipes are both connected with a main air inlet pipe, and the two air outlet branch pipes are both connected with a main air outlet pipe. And alternate replacement operation of the two groups of water removal tanks can be automatically realized through self weight, so that real-time monitoring of flue gas is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of flue gas monitoring technology, and in particular to a compressed air dehydration structure for real-time flue gas monitoring. Background Technology

[0002] Dilution-based CEMS is a technology used for real-time monitoring of pollutant concentrations in flue gas. It involves diluting the flue gas with clean diluent gas to reduce the mass concentration of harmful gases, thereby minimizing their impact on the system. In this process, the application of compressed air dehydration technology is particularly important. This is because flue gas typically contains moisture, which, if left untreated, can damage the monitoring instrument, affecting measurement accuracy and instrument lifespan. A dehydration device (a tank containing granular dehydrating agent to absorb and dry the gas) effectively removes moisture from the compressed air, ensuring the sample gas is dry and preventing moisture interference with measurement results, thus improving measurement accuracy and instrument stability.

[0003] However, when performing compressed gas dehydration, only one dehydration device is usually set up. During real-time flue gas monitoring, after the particulate dehydrating agent reaches its maximum water absorption saturation state, the injection of compressed gas needs to be stopped and the dehydrating agent needs to be replaced manually. This process takes too long and is not conducive to real-time flue gas monitoring. Therefore, this application provides a compressed air dehydration structure for real-time flue gas monitoring to meet the requirements. Utility Model Content

[0004] The purpose of this application is to provide a compressed air dehydration structure for real-time flue gas monitoring, which solves the technical problem that the existing technology only sets one set of dehydration devices, which is not conducive to the real-time monitoring of flue gas.

[0005] To achieve the above objectives, this application provides the following technical solution: a compressed air dehydration structure for real-time flue gas monitoring, comprising two dehydration tanks for removing moisture from compressed air and an automatic alternation unit that automatically alternates the two dehydration tanks for dehydration operations;

[0006] The upper ends of the two water removal tanks are respectively provided with an air inlet branch pipe and an air outlet branch pipe. Both air inlet branch pipes are connected to the main air inlet pipe, and both air outlet branch pipes are connected to the main air outlet pipe.

[0007] The automatic alternating unit includes a base plate, two columns with magnets in the upper grooves, four opening and closing valves, a loop rod, and a T-shaped rod.

[0008] Both columns are fixed to the base plate and are located directly below the corresponding water removal tanks. Linear springs are installed around the periphery of both columns, and the upper and lower ends of the linear springs are fixedly connected to the lower end of the water removal tank and the upper end of the base plate, respectively.

[0009] The upper ends of the two water removal tanks are provided with toothed rods located between the corresponding air inlet branch pipe and the air outlet branch pipe;

[0010] The four opening and closing valves are respectively installed on the corresponding air inlet branch pipe and the air outlet branch pipe. The air inlet branch pipe and the air outlet branch pipe are provided with telescopic sections. Gears are installed on the rotating shafts of the four opening and closing valves.

[0011] The inner cavity of the dewatering tank is provided with a partition, and the two sides of the partition are a drying chamber and an exhaust chamber, respectively. The lower end of the partition is in contact with the support mesh installed in the inner cavity of the dewatering tank. The granular dewatering agent is filled in the drying chamber, and a filter cotton layer is provided below the granular dewatering agent.

[0012] The spiral rod is fixed on the base plate and positioned between the two water removal tanks. The lower end of the T-shaped rod passes through the spiral limiting cavity at the upper end of the spiral rod and is connected to the first toothed plate. A second toothed plate is slidably disposed in the spiral cavity of the spiral rod, and both ends of the second toothed plate are provided with extrusion inclined surfaces. The upper end of the second toothed plate is meshed with the first toothed plate through a transmission gear fixed on the spiral rod.

[0013] In a preferred embodiment of this invention, each of the two air intake branches is equipped with an expansion airbag, which does not expand during normal water removal operations.

[0014] In a preferred embodiment of this invention, L-shaped baffles are provided on both lower ends of the spiral rod, and the lower end of the second toothed plate is slidably connected to the spiral rod via a slider. A first elastic magnetic block and a second elastic magnetic block are respectively provided on both ends of the two L-shaped baffles and the slider.

[0015] As a preferred embodiment of this invention, it further includes two L-shaped uprights and two sets of sliding columns. The two sets of sliding columns are installed on the corresponding water removal tanks and slide through the corresponding L-shaped uprights. Both L-shaped uprights are installed on the base plate.

[0016] In summary, the technical effects and advantages of this utility model are as follows:

[0017] This utility model has a reasonable structure and can automatically switch between two sets of water removal tanks by its own weight, which is beneficial for real-time monitoring of flue gas.

[0018] In this invention, an expansion bladder is provided on the intake branch pipe to prevent the gas inside the pipe from increasing rapidly.

[0019] In this invention, an L-shaped baffle, a first elastic magnetic block, and a second elastic magnetic block are provided, which is beneficial to the stable operation of the T-shaped rod. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram showing the overall and partial enlarged structure of this utility model;

[0022] Figure 2 for Figure 1 A magnified schematic diagram of the central part of the structure;

[0023] Figure 3 for Figure 2 A magnified schematic diagram of the structure viewed from below in the middle section;

[0024] Figure 4 for Figure 1 A schematic diagram of a partial cross-sectional structure of the water removal tank;

[0025] Figure 5 for Figure 1 A schematic diagram of the structure from a center view and a magnified view of a portion of it.

[0026] In the diagram: 1. Base plate; 2. Column; 3. Linear spring; 4. Magnet; 5. Main air intake pipe; 6. Dehydrator; 7. Gear; 8. Telescopic section; 9. Opening / closing valve; 10. Air outlet branch pipe; 11. Air intake branch pipe; 12. Main air outlet pipe; 13. Filter cotton layer; 14. Support net; 15. Partition plate; 16. Exhaust chamber; 17. Granular dehydrating agent; 18. Recurved rod; 19. Second gear plate; 20. Extrusion slope; 21. Transmission gear; 22. T-shaped rod; 23. Recurved limiting cavity; 24. First gear plate; 25. L-shaped baffle; 26. Slider; 27. First elastic magnet; 28. Second elastic magnet; 29. ​​Inflatable airbag; 30. L-shaped column; 31. Sliding column. Detailed Implementation

[0027] 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.

[0028] Example: Reference Figure 1-5 The compressed air dehydration structure for real-time flue gas monitoring shown includes two dehydration tanks 6 for removing moisture from compressed air and an automatic alternation unit that automatically alternates between the two dehydration tanks 6 to perform dehydration operations.

[0029] The upper ends of the two water removal tanks 6 are respectively provided with air inlet branch pipes 11 and air outlet branch pipes 10. Both air inlet branch pipes 11 are connected to the main air inlet pipe 5, and both air outlet branch pipes 10 are connected to the main air outlet pipe 12.

[0030] The automatic alternation unit includes a base plate 1, two columns 2 with magnets 4 in the upper grooves, four opening and closing valves 9, a loop rod 18, and a T-shaped rod 22;

[0031] Both columns 2 are fixed on the base plate 1 and are located directly below the corresponding water removal tank 6. Linear springs 3 are installed on the periphery of both columns 2, and the upper and lower ends of the linear springs 3 are fixedly connected to the lower end of the water removal tank 6 and the upper end of the base plate 1, respectively.

[0032] The upper ends of the two water removal tanks 6 are provided with toothed rods 7 between the corresponding air inlet branch pipe 11 and air outlet branch pipe 10;

[0033] Four opening and closing valves 9 are respectively installed on the corresponding air inlet branch pipe 11 and air outlet branch pipe 10. The air inlet branch pipe 11 and air outlet branch pipe 10 are provided with telescopic sections 8. Gears are installed on the rotating shafts of the four opening and closing valves 9.

[0034] The inner cavity of the dewatering tank 6 is provided with a partition 15, and the two sides of the partition 15 are a drying chamber and an exhaust chamber 16, respectively. The lower end of the partition 15 is in contact with the support net 14 installed in the inner cavity of the dewatering tank 6. The granular dewatering agent 17 is filled in the drying chamber, and a filter cotton layer 13 is provided below the granular dewatering agent 17.

[0035] The spiral rod 18 is fixed on the base plate 1 and positioned between the two water removal tanks 6. The lower end of the T-shaped rod 22 passes through the spiral limiting cavity 23 provided at the upper end of the spiral rod 18 and is connected to the first toothed plate 24. A second toothed plate 19 is slidably arranged in the spiral cavity of the spiral rod 18, and both ends of the second toothed plate 19 are provided with extrusion inclined surfaces 20. The upper end of the second toothed plate 19 is meshed with the first toothed plate 24 through a transmission gear 21 fixed on the spiral rod 18.

[0036] At the beginning Figure 1 As shown, the valves 9 on the set of intake branch pipes 11 and the set of exhaust branch pipes 10 on the left side are in the open state, and the insertion part of the rack 7 on the left side is located above the two sets of gears on the left. The valves 9 on the set of intake branch pipes 11 and the set of exhaust branch pipes 10 on the right side are in the closed state, and the insertion part of the rack 7 on the right side is located below the two sets of gears on the right. At the same time, the crossbar at the upper end of the T-shaped rod 22 is located above the rack 7 on the right and blocks the rack 7 which has an upward tendency.

[0037] During operation, compressed gas enters the intake branch pipe 11 on the left side through the main intake pipe 5. Moisture in the compressed gas is absorbed, and the dry gas enters the exhaust chamber 16 and is finally discharged from the outlet branch pipe 10. As moisture is absorbed, the overall weight of the dewatering tank 1 continuously compresses the linear spring 3, causing the dewatering tank 1 to move downwards. At this time, the distance between the lower end of the dewatering tank 1 and the magnet 4 continuously shortens. When the left-side rack 7 is about to contact the gear, the magnetic force will drive the dewatering tank 1 to move rapidly downwards, eventually causing the lower end of the dewatering tank 1 to contact the upper end of the column 2 (during this process, the left side...). The toothed rod 7 will mesh with the two gears and cause the two opening and closing valves 9 on the left to close, finally completing the meshing separation. When the dewatering tank 1 moves downward under the action of magnetic force, the bottom of the dewatering tank 1 will contact the extrusion inclined surface 20 set on the left, causing the second toothed plate 19 to move to the right. Through the transmission of the transmission gear 21, the T-shaped rod 22 moves to the left, releasing the obstruction of the right end of the T-shaped rod 22 on the upper end of the right toothed rod 7 (at the same time, the left end of the T-shaped rod 22 is located directly above the left toothed rod 7, forming an obstruction). At this time, the dewatering tank 1 set on the right (the granular dewatering agent 17 inside has not absorbed water, causing the dewatering tank 1) to be free. The weight of the right-side dehydrator 1 is significantly reduced compared to the weight of the left-side dehydrator 1 after absorbing moisture. This causes the elastic force of the linear spring 3 to be greater than the sum of the magnetic force and the weight of the right-side dehydrator 1. Through the elastic force, the lower end of the right-side dehydrator 1 separates from the column 2, and the upper end of the right-side toothed rod 7 contacts the right end of the T-shaped rod 22. Under the elastic force of the linear spring 3, the right-side toothed rod 7 will engage with the two opening and closing valves 9 on the right side, causing the two opening and closing valves 9 to be opened, and finally the toothed engagement will be separated. At this time, the compressed gas will pass through the right-side dehydrator 1 to perform dehydration. While the right-side dehydrator 1 is operating, the left-side dehydrator 1 is disassembled and replaced. After the particulate dehydrating agent 17 in tank 1 is finished, it is installed and returned to its original position. At this time, under the elastic force of the linear spring 3, the right toothed rod 7 and the left end of the T-shaped rod 22 come into contact (the lower end of the left dehydrating tank 1 contacts and separates from the left column 2). After the right dehydrating tank 1 absorbs water and increases in weight to the maximum extent, it moves downward and is magnetically fixed to the upper end of the right column 2. The second toothed plate 19 moves to the right, and through the action of the transmission gear 21, the T-shaped rod 2 moves to the left. The right dehydrating tank 1, which has been replaced, is connected to the pipeline for dehydration. Two sets of dehydrating tanks 1 are set up, which can automatically realize the alternation operation, which is beneficial to the real-time monitoring of flue gas.

[0038] It should be noted that: First, silica gel particles can be used as the granular dehydrating agent 17; second, a filter cotton layer 13 can be set to filter out tiny particles in the gas path, reducing gas path pollution and maintenance; third, an elastic pad can be set at the upper end of the column 2 for elastic buffering, reducing the collision between the lower end of the dehydrating tank 1 and the column 2.

[0039] As a preferred embodiment of this example, Figure 5As shown, each of the two air intake manifolds 11 is equipped with an inflatable airbag 29. During normal water removal operations, the inflatable airbag 29 does not inflate.

[0040] Since the two dewatering tanks 1 require a certain amount of time from the start of automatic replacement to the completion of automatic replacement (referring to the interval between the closing of the two sets of opening and closing valves 9 on one side and the opening of the two sets of opening and closing valves 9 on the other side), an expansion bladder 29 is set up for buffering. During buffering, the compressed gas will cause the expansion bladder 29 to expand, which can prevent the gas inside the pipeline from increasing rapidly (a rapid increase in gas pressure will cause the compressed gas to flow quickly through the granular dewatering agent 17 when the opening and closing valves 9 are opened later, reducing the contact time with the granular dewatering agent 17 and easily causing a decrease in the dewatering effect).

[0041] As a preferred embodiment of this example, Figure 3 As shown, L-shaped baffles 25 are provided on both lower ends of the spiral rod 18. The lower end of the second toothed plate 19 is slidably connected to the spiral rod 18 via a slider 26. The two L-shaped baffles 25 and the two ends of the slider 26 are respectively provided with a first elastic magnetic block 27 and a second elastic magnetic block 28.

[0042] To prevent the collision between the water tank 1 and the column 2 from causing the T-shaped rod 22 to move excessively and fail to block the left or right toothed rod 7, two L-shaped baffles 25, a first elastic magnetic block 27, and a second elastic magnetic block 28 are provided to limit the movement of the second toothed plate 19. The magnetic attraction between the first elastic magnetic block 27 and the second elastic magnetic block 28 is used to position the second toothed rod 19 after it has moved into place. At the same time, the first elastic magnetic block 27 and the second elastic magnetic block 28 have a certain degree of elasticity, which can provide some collision buffering.

[0043] It should be noted that the magnetic poles of the first elastic magnetic block 27 and the second elastic magnetic block 28 are opposite at their opposite ends, forming a magnetic attraction force.

[0044] As a preferred embodiment of this example, Figure 5 As shown, it also includes two L-shaped uprights 30 and two sets of sliding columns 31. The two sets of sliding columns 31 are installed on the corresponding water removal tank 6 and slide through the corresponding L-shaped uprights 30. Both L-shaped uprights 30 are installed on the base plate 1.

[0045] The purpose of setting up the L-shaped upright 30 and the sliding column 31 is to ensure the stability of the water tank 1 when it moves up and down.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A compressed air water removal structure for real-time flue gas monitoring, characterized by: The utility model provides an automatic alternating unit for automatically alternating two water removal tanks (6) to carry out water removal operation, and the water removal tanks (6) are used for removing water in compressed air. The upper ends of the two water removal tanks (6) are respectively provided with air inlet branch pipes (11) and air outlet branch pipes (10), the two air inlet branch pipes (11) are connected with a main air inlet pipe (5), and the two air outlet branch pipes (10) are connected with a main air outlet pipe (12). The automatic alternating unit comprises a bottom plate (1), two vertical columns (2) with magnets (4) in upper end recesses, four open-close valves (9), a back-shaped rod (18), and a T-shaped rod (22). The two vertical columns (2) are fixed on the bottom plate (1) and are located directly below the corresponding water removal tanks (6), the peripheries of the two vertical columns (2) are respectively provided with linear springs (3), and the upper and lower ends of the linear springs (3) are fixedly connected with the lower ends of the water removal tanks (6) and the upper end of the bottom plate (1). The upper ends of the two water removal tanks (6) are located between the corresponding air inlet branch pipes (11) and air outlet branch pipes (10) and are provided with toothed rods (7). The four open-close valves (9) are respectively arranged on the corresponding air inlet branch pipes (11) and air outlet branch pipes (10), the air inlet branch pipes (11) and air outlet branch pipes (10) are provided with telescopic sections (8), and the rotating shafts of the four open-close valves (9) are respectively provided with gears. The inner cavities of the water removal tanks (6) are provided with partitions (15), the two sides of the partitions (15) are respectively drying cavities and exhaust cavities (16), the lower ends of the partitions (15) are in contact with support nets (14) arranged in the inner cavities of the water removal tanks (6), granular water removal agents (17) are filled in the drying cavities, and the lower parts of the granular water removal agents (17) are provided with filter cotton layers (13). The back-shaped rod (18) is fixed on the bottom plate (1) and is arranged between the two water removal tanks (6), the lower end of the T-shaped rod (22) penetrates a back-shaped limiting cavity (23) arranged at the upper end of the back-shaped rod (18) and is connected with a first toothed plate (24), a second toothed plate (19) is slidably arranged in a back-shaped cavity of the back-shaped rod (18), the two ends of the second toothed plate (19) are respectively provided with extrusion inclined surfaces (20), and the upper end of the second toothed plate (19) is toothedly connected with the first toothed plate (24) through a transmission gear (21) fixed on the back-shaped rod (18).

2. The compressed air water removal structure for real-time flue gas monitoring according to claim 1, characterized in that: The two air inlet branch pipes (11) are respectively provided with inflatable air bags (29), and the inflatable air bags (29) do not expand during normal water removal operation.

3. The compressed air water removal structure for real-time flue gas monitoring according to claim 1, characterized in that: The lower parts of the two L-shaped baffles (25) and the sliding block (26) are respectively provided with first elastic magnetic blocks (27) and second elastic magnetic blocks (28).

4. The compressed air water removal structure for real-time flue gas monitoring according to claim 1, characterized in that: Two L-shaped vertical rods (30) and two sets of slide posts (31) are further included, the two sets of slide posts (31) are installed on the corresponding water removing tank (6) and slide through the corresponding L-shaped vertical rod (30), and the two L-shaped vertical rods (30) are both installed on the bottom plate (1).

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