A natural gas tail gas clean-up apparatus

Abstract

The utility model discloses a natural gas tail gas purification equipment relates to natural gas tail gas treatment equipment technical field, including the jar body, the filter box of containing filter ball is arranged in the jar body, the clean water sprayer is installed on the filter box top, the height adjusting mechanism is installed in the jar body, and the height adjusting mechanism is used for adjusting the interval between filter box and clean water sprayer, and the height adjusting mechanism includes first annular seat, the first ring gear in first annular seat interior, the ring gear that is engaged with first annular seat, the second annular that is fixed on the inner wall of jar body, the annular mounting frame between annular seat, the threaded rod that is inserted on annular mounting frame, the nut is covered on threaded rod, and the nut is fixed on annular mounting frame, and the height adjusting mechanism shell can adjust filter box, ensure that the spray liquid always completely covers filter ball, can also exhaust gas ascending path increase, and the contact time with spray liquid increases, and the absorption of reinforcing to sulfur dioxide and other pollutants.

Description

Technical Field

[0001] This utility model relates to the technical field of natural gas tail gas treatment equipment, specifically a natural gas tail gas purification device. Background Technology

[0002] In industrial production, sulfur-containing gases need to be treated before being released to the outside to prevent them from being directly released and causing environmental pollution. When treating sulfur-containing gases, taking into account the fact that sulfides, such as sulfur dioxide and sulfur trioxide, are easily soluble in water, sulfur dioxide is generally absorbed by water spraying. Therefore, a sulfur-containing tail gas treatment device is needed. However, in actual use, the sulfur-containing exhaust gas treatment devices commonly used often suffer from reduced purification efficiency because as the stacking height of the filter balls in the filter box increases, the spraying area of ​​the clean water sprayer cannot completely cover the filter balls below. In addition, the exhaust gas contact time is short: the exhaust gas rises along a fixed path, and when the stacking height of the filter balls changes, the contact time between the exhaust gas and the spray liquid is insufficient, affecting the absorption effect of pollutants such as sulfur dioxide. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a natural gas exhaust gas purification device that solves the limitations of traditional equipment such as spray coverage defects and fixed exhaust gas paths, and can absorb sulfur dioxide in the exhaust gas to the greatest extent.

[0004] The objective of this utility model is achieved through the following technical solution: A natural gas exhaust gas purification device includes a tank, a filter box containing filter balls is provided inside the tank, a clean water sprayer is installed above the filter box, and a height adjustment mechanism is installed inside the tank for adjusting the distance between the filter box and the clean water sprayer. The height adjustment mechanism includes: The first annular seat is fixed on the inner wall of the tank. The first annular seat is rotatably connected to a first annular gear and a circular gear meshing with the first annular gear. The second annular seat is fixed to the inner wall of the tank, and a bearing seat is installed inside the second annular seat.

[0005] A ring-shaped mounting bracket is located between a first ring seat and a second ring seat. A threaded rod is vertically inserted into the ring mounting bracket. The top end of the threaded rod passes through the first ring seat and is fixedly connected to the ring gear. The bottom end of the threaded rod passes through the second ring seat and is connected to the bearing seat. A nut with threaded engagement is fitted on the threaded rod and is fixedly connected to the ring mounting bracket.

[0006] Furthermore, a drive mechanism is installed on the side of the tank body, which is used to drive the first ring gear to rotate inside the first ring seat.

[0007] Furthermore, the drive mechanism includes a triangular support frame on which a motor and a first housing are mounted. A worm gear is disposed inside the first housing. One end of the worm gear is rotatably connected to the inner wall of the first housing, and the other end of the worm gear passes through the first housing and is connected to the output shaft of the motor. A worm wheel that meshes with the worm gear is installed in the tank, and the worm wheel meshes with a first ring gear.

[0008] Furthermore, a first through groove is provided on the side of the tank body. The first through groove is located between the worm and the first ring gear, and the central shaft of the worm gear is rotatably connected in the first through groove.

[0009] Furthermore, a guide rod is vertically inserted into the annular mounting bracket, with the top end of the guide rod fixedly connected to the bottom of the first annular seat and the bottom end of the guide rod fixedly connected to the second annular seat.

[0010] Furthermore, the tank body includes an upper tank body and a lower tank body, both of which are equipped with flanges, and the two flanges are connected by fasteners.

[0011] Furthermore, the clean water sprayer is installed in the upper tank. The clean water sprayer includes a nozzle, and a connecting pipe is installed on the nozzle. The connecting pipe passes through the side wall of the upper tank and is connected to the external liquid supply pipeline.

[0012] The beneficial effects of this utility model are: In this application, the height adjustment mechanism is designed to adjust the up-and-down movement of the filter box inside the tank, thereby changing the distance between the filter box and the clean water sprayer. Subsequently, as the filter balls in the filter box are stacked higher, the downward-moving filter box and the clean water sprayer can completely cover the filter balls. The exhaust gas that needs to be filtered then continuously permeates upward from the bottom of the filter box. The stacked filter balls clean the exhaust gas flowing through it. At the same time, the stacked filter balls extend the upward path of the exhaust gas, which allows the clean water sprayer more time to absorb sulfur dioxide in the exhaust gas. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 A schematic diagram of the side view structure; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at point AA; In the diagram, 1. Upper tank; 2. Lower tank; 201. First through groove; 3. Triangular support frame; 4. Motor; 5. First outer casing; 6. Worm gear; 7. Worm wheel; 8. First ring gear; 9. Circular ring gear; 10. First ring seat; 11. Threaded rod; 12. Nut; 13. Ring mounting bracket; 14. Second ring seat; 15. Bearing seat; 16. Guide rod; 17. Filter box; 18. Nozzle; 19. Connecting pipe. Detailed Implementation

[0014] like Figures 1 to 3 As shown, a natural gas exhaust gas purification device includes a tank, inside which is a filter box 17 containing several filter balls. A water sprayer is installed above the filter box 17. In actual use, as the filter balls in the filter box 17 are stacked higher, the spraying area continuously shrinks, and the water sprayer cannot completely cover the filter balls below. Therefore, a height adjustment mechanism is designed. This height adjustment mechanism can adjust the up and down movement of the filter box 17 inside the tank, thereby changing the distance between the filter box 17 and the water sprayer. When the stacking height of the filter balls in the filter box 17 increases, by moving the filter box 17 downward, the water sprayer can always maintain complete coverage of the filter balls. The exhaust gas enters from below the filter box 17 and permeates upward. The stacked filter balls purify the exhaust gas. At the same time, the stacked filter balls extend the upward path of the exhaust gas, which allows the water sprayer more time to absorb sulfur dioxide in the exhaust gas.

[0015] The height adjustment mechanism described above is as follows: A first annular seat 10 is fixed to the inner wall of the tank. A first annular gear 8 and a circular gear 9 meshing with the first annular gear 8 are rotatably connected inside the first annular seat 10. A drive mechanism is installed on the side of the tank. The drive mechanism can drive the first annular gear 8 to rotate inside the first annular seat 10. The first annular gear 8 meshes with the circular gear 9, thereby driving the circular gear 9 to rotate. This drive mechanism includes a triangular support frame 3. A motor 4 and a first housing 5 are installed on the triangular support frame 3. A worm gear 6 is installed inside the first housing 5. One end of the worm gear 6 is rotatably connected to the inner wall of the first housing 5, and the other end of the worm gear 6 passes through the first housing 5 and is connected to the output shaft of the motor 4. A first through groove 201 is opened on the side of the tank. The first through groove 201 is located between the worm gear 6 and the first annular gear 8. A worm wheel 7 is installed in the first through groove 201. The central shaft of the worm wheel 7 is rotatably connected to the first through groove 201. The worm wheel 7 is respectively connected to the first annular gear 8. A ring gear 8 meshes with a worm gear 6. A second ring seat 14 is fixed to the inner wall of the tank. A bearing seat 15 is installed inside the second ring seat 14. An annular mounting bracket 13 is located between the first annular seat 10 and the second annular seat 14. A threaded rod 11 is vertically inserted into the annular mounting bracket 13. The top end of the threaded rod 11 passes through the first annular seat 10 and is fixedly connected to the ring gear 9. A bearing is installed between the threaded rod 11 and the first annular seat 10. The bottom end of the threaded rod 11 passes through the second annular seat 14 and is connected to the bearing seat 15. A nut 12 with a threaded fit is fitted on the threaded rod 11. The nut 12 is fixedly connected to the annular mounting bracket 13. A guide rod 16 is vertically inserted into the annular mounting bracket 13 to limit the movement trajectory of the annular mounting bracket 13, prevent it from shifting or tilting, and avoid uneven load distribution of the filter box 17, which could cause it to shift or tilt. The top end of the guide rod 16 is fixedly connected to the bottom of the first annular seat 10, and the bottom end of the guide rod 16 is fixedly connected to the second annular seat 14.

[0016] When the height of the filter box 17 needs to be lowered, the motor 4 is started. The motor 4 is supported by the triangular support frame 3. The output shaft of the motor 4, which is also the rotating shaft, drives the worm 6 to rotate. The worm 6 meshes with the worm wheel 7, and the other side of the worm wheel 7 meshes with the first ring gear 8, which in turn drives the first ring gear 8 to rotate inside the first ring seat 10. The inner side of the first ring gear 8 meshes with the circular ring gear 9. Then, during the rotation of the first ring gear 8, the circular ring gear 9 on the threaded rod 11 is driven to rotate. The circular ring gear 9 is connected to the threaded rod 11 as a whole, thereby driving the threaded rod 11 to rotate. The threaded rod 11 is threadedly engaged with the nut 12. The nut 12 is fixed on the annular mounting frame 13. The filter box 17 is connected to the annular mounting frame 13, thereby driving the filter box 17 to move downward and continuously increase the distance from the nozzle 18 to achieve full spray coverage.

[0017] like Figure 1As shown, the tank body includes an upper tank 1 and a lower tank 2. Both the upper tank 1 and the lower tank 2 are equipped with flanges, which are connected by fasteners. A clean water sprayer is installed in the upper tank 1. The clean water sprayer includes a nozzle 18, and a connecting pipe 19 is installed on the nozzle 18. The connecting pipe 19 passes through the side wall of the upper tank 1 and connects to the external liquid supply pipeline. The fasteners here can be removed to detach the two flanges, thereby opening the upper tank 1 and the lower tank 2, which is conducive to assembling the internal structure of the upper and lower tanks.

[0018] In summary, firstly, the spray coverage is dynamically adjusted: the filter box 17 can be lowered according to the stacking height of the filter balls through the height adjustment mechanism, ensuring that the spray liquid always completely covers the filter balls and improving the uniformity of purification; secondly, the exhaust gas treatment time is extended: after the filter box 17 is lowered, the upward path of the exhaust gas is lengthened, and the contact time with the spray liquid is increased, which enhances the absorption of pollutants such as sulfur dioxide; thirdly, the guide rod 16 design can prevent the filter box 17 from tilting due to uneven load, ensuring the stability of vertical movement; fourthly, the worm gear 7-worm 6 transmission: the self-locking characteristic avoids the accidental displacement of the filter box 17 after the motor 4 stops, ensuring positioning accuracy. Overall, it solves the limitations of fixed spray coverage and exhaust gas path in traditional equipment, optimizes purification efficiency through dynamic adjustment, and takes into account structural stability and ease of maintenance.

Claims

1. A natural gas tail gas purification device, characterized in that, Includes a tank body, wherein a filter box (17) for accommodating filter balls is provided inside the tank body, a clean water sprayer is installed above the filter box (17), and a height adjustment mechanism is installed inside the tank body for adjusting the distance between the filter box (17) and the clean water sprayer. The height adjustment mechanism includes: The first annular seat (10) is fixed on the inner wall of the tank. The first annular seat (10) is rotatably connected to the first annular gear (8) and the annular gear (9) meshing with the first annular gear (8). The second annular seat (14) is fixed on the inner wall of the tank, and a bearing seat (15) is installed inside the second annular seat (14). A ring mounting bracket (13) is located between a first ring seat (10) and a second ring seat (14). A threaded rod (11) is vertically inserted into the ring mounting bracket (13). The top end of the threaded rod (11) is inserted into the first ring seat (10) and fixedly connected to the ring gear (9). The bottom end of the threaded rod (11) is inserted into the second ring seat (14) and connected to the bearing seat (15). A nut (12) with a threaded fit is fitted on the threaded rod (11). The nut (12) is fixedly connected to the ring mounting bracket (13).

2. The natural gas tail gas purification device according to claim 1, characterized in that, A drive mechanism is installed on the side of the tank body, which is used to drive the first ring gear (8) to rotate inside the first ring seat (10).

3. The natural gas tail gas purification device according to claim 2, characterized in that, The driving mechanism includes a triangular support frame (3), on which a motor (4) and a first housing (5) are mounted. A worm gear (6) is provided inside the first housing (5). One end of the worm gear (6) is rotatably connected to the inner wall of the first housing (5), and the other end of the worm gear (6) passes through the first housing (5) and is connected to the output shaft of the motor (4). A worm wheel (7) that meshes with the worm gear (6) is installed in the tank. The worm wheel (7) meshes with the first ring gear (8).

4. The natural gas tail gas purification device according to claim 3, characterized in that, The tank body has a first through groove (201) on its side. The first through groove (201) is located between the worm (6) and the first ring gear (8). The central shaft of the worm wheel (7) is rotatably connected in the first through groove (201).

5. A natural gas tail gas purification device according to claim 1, characterized in that, A guide rod (16) is vertically inserted on the annular mounting bracket (13). The top end of the guide rod (16) is fixedly connected to the bottom of the first annular seat (10), and the bottom end of the guide rod (16) is fixedly connected to the second annular seat (14).

6. The natural gas tail gas purification device according to claim 1, characterized in that, The tank body includes an upper tank body (1) and a lower tank body (2), and both the upper tank body (1) and the lower tank body (2) are equipped with flanges, which are connected by fasteners.

7. A natural gas tail gas purification device according to claim 1, characterized in that, The clean water sprayer is installed in the upper tank (1). The clean water sprayer includes a nozzle (18) and a connecting pipe (19) is installed on the nozzle (18). The connecting pipe (19) passes through the side wall of the upper tank (1) and is connected to the external liquid supply pipeline.

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