Series ammonia synthesis tower with pressure self-regulation function

By designing a series ammonia synthesis tower with autonomous pressure regulation, and using mechanical structure to adjust gas flow, the problems of reduced heating efficiency and increased gas pressure caused by thermocouple and electric heater losses were solved, thus achieving effective control of gas reaction and equipment protection.

CN115569611BActive Publication Date: 2026-05-29上海电气集团国控环球工程有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
上海电气集团国控环球工程有限公司
Filing Date
2022-09-22
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In the operation of existing series-connected ammonia synthesis towers, the heating efficiency is reduced due to the wear and tear of thermocouples and electric heaters. The gas reaction consumption is not proportional to the gas intake, and the gas pressure increases, which may damage the equipment.

Method used

A series ammonia synthesis tower with autonomous pressure regulation function was designed. The gas flow rate and intake volume are adjusted by mechanical structure, and the opening and closing of the ventilation holes are controlled by a motor-driven mechanical device to achieve adaptive adjustment of gas flow.

Benefits of technology

It effectively regulates the matching between gas reaction consumption and gas intake, avoids excessive gas pressure, protects the equipment from damage, and maintains reaction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a series ammonia synthesis tower with a pressure self-regulating function, which comprises an ammonia synthesis tower body, a fixed block is fixedly connected to the outer wall of a feeding pipe, and a first groove is formed in the fixed block. The first rotating plate is arranged at one end of the driving shaft, and the blocking plate is arranged on the outer wall of the second rotating plate, so that the air inlet and outlet amount of the ventilation hole can be changed. In the application, the inside of the series ammonia synthesis tower is continuously reacted with the gas. When the thermocouple and the electric heater are used for a period of time, the thermocouple and the electric heater are gradually consumed, the heating efficiency of the inside of the series ammonia synthesis tower is reduced, and the reaction efficiency of the inside of the series ammonia synthesis tower is reduced. The device can adjust the gas flux, the gas reaction consumption is proportional to the air inlet amount, the internal pressure of the series ammonia synthesis tower cannot be increased, and the inside of the series ammonia synthesis tower cannot be damaged.
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Description

Technical Field

[0001] This invention relates to the field of ammonia synthesis tower technology, specifically to a series ammonia synthesis tower with autonomous pressure regulation function. Background Technology

[0002] An ammonia synthesis tower is a device used under high pressure and high temperature to catalyze the reaction of nitrogen and hydrogen to synthesize ammonia. It is the heart of an ammonia synthesis plant and is a complex reactor. Currently, industrial ammonia synthesis is carried out at pressures of 15.2–30.4 MPa and temperatures of 400–520°C. To prevent corrosion of steel by hydrogen under high pressure and high temperature, the ammonia synthesis tower consists of a high-pressure resistant end cap, an outer cylinder, and high-temperature resistant internal components housed within the cylinder.

[0003] In a series-connected ammonia synthesis tower, the thermocouples and electric heaters inside the tower need to be energized to allow the ammonia synthesis tower to undergo a heating reaction.

[0004] Currently, when using a series-connected ammonia synthesis tower on the market, the required gas needs to be introduced into the tower, and then heated and pressurized inside to allow the gas to react. In actual use, because the gas reaction inside the series-connected ammonia synthesis tower is continuous, the thermocouples and electric heaters will gradually wear out after a period of use, resulting in a decrease in the heating efficiency inside the tower. This, in turn, reduces the reaction efficiency inside the tower. When gas continues to enter the tower, the gas consumption due to reaction is not proportional to the gas intake, causing the internal gas pressure to increase. This excessive pressure can damage the tower. Summary of the Invention

[0005] The purpose of this invention is to provide a series ammonia synthesis tower with autonomous pressure regulation function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A series-connected ammonia synthesis tower with autonomous pressure regulation function, comprising an ammonia synthesis tower body;

[0008] The feed pipe is fixedly connected to one side of the outer wall of the ammonia synthesis tower body;

[0009] The discharge pipe is fixedly connected to the bottom end of the ammonia synthesis tower body, and the ammonia synthesis tower body is connected to the discharge pipe;

[0010] Thermocouples are fixedly connected inside the ammonia synthesis tower body;

[0011] A fixing block is fixedly connected to the outer wall of the feed pipe. A first groove is formed inside the fixing block. A motor is fixedly connected inside the first groove. A drive shaft is fixedly connected to one end of the motor output shaft. A first support plate is rotatably connected to the outer wall of the drive shaft. The outer wall of the first support plate is fixedly connected to the inside of the first groove. A first rotating plate is fixedly connected to one end of the drive shaft. A connecting rod is fixedly connected to the outer wall of the first rotating plate. A first connecting plate is rotatably connected to the outer wall of the connecting rod. A second connecting plate is hinged to the outer wall of the first connecting plate. A second groove is formed inside the feed pipe. One end of the second connecting plate passes through the second groove and is slidably connected to the feed pipe. A baffle is fixedly connected inside the second groove. A ventilation hole is formed on the outer wall of the baffle. A rotating rod is rotatably connected to the outer wall of the baffle. A gear is fixedly connected to the outer wall of the rotating rod. A rack is fixedly connected to one end of the second connecting plate. The rack meshes with the gear.

[0012] Furthermore, a first movable rod is fixedly connected to the outer wall of the rotating rod, and a second movable rod is hinged to one end of the first movable rod. A baffle plate is hinged to the end of the second movable rod away from the first movable rod. The addition of the second movable rod allows the first movable rod to drive the baffle plate to move.

[0013] Furthermore, a movable block is hinged to the outer wall of the baffle, and a movable groove is formed on the outer wall of the movable block. The baffle plate is slidably connected to the movable groove. The addition of the baffle plate allows the second movable rod to drive the movable block to move.

[0014] Furthermore, a second rotating plate is rotatably connected to the end of the connecting rod away from the first rotating plate. A driven shaft is fixedly connected to the outer wall of the second rotating plate. A second support plate is rotatably connected to the outer wall of the driven shaft. The outer wall of the second support plate is fixedly connected to the inside of the first groove. The addition of the second support plate restricts the movement trajectory of the driven shaft.

[0015] Furthermore, a third rotating plate is fixedly connected to one end of the driven shaft, a movable plate is provided inside the first groove, a strip groove is provided on the outer wall of the movable plate, a connecting block is slidably connected inside the strip groove, and the outer wall of the connecting block is fixedly connected to the outer wall of the third rotating plate. The addition of the strip groove allows the connecting block to drive the movable plate to move.

[0016] Furthermore, a movable plate is fixedly connected to the outer wall of the movable plate, one end of which passes through the interior of the second groove. The movable plate is slidably connected to the feed pipe. A first magnet is fixedly connected to the outer wall of the movable plate. The addition of the first magnet allows the movable plate to drive the second magnet to move.

[0017] Furthermore, a stabilizing block is fixedly connected inside the second groove, and a third groove is formed inside the stabilizing block. A moving rod is provided inside the third groove, one end of which passes through the outer wall of the stabilizing block. The moving rod is slidably connected to the stabilizing block, and a second magnet is fixedly connected to one end of the moving rod. The first magnet and the second magnet repel each other. The addition of the second magnet allows the moving rod to slide inside the third groove.

[0018] Furthermore, the third groove is provided with a pressing block, the outer wall of the pressing block is fixedly connected to one end of the moving rod, a spring is provided between the outer wall of the pressing block and the third groove, the outer wall of the pressing block is provided with a first sliding groove, a first slider is slidably connected inside the first sliding groove, a locking plate is hinged to the outer wall of the first slider, one end of the locking plate passes through the outer wall of the stabilizing block, the locking plate is slidably connected to the stabilizing block, and the addition of the first slider allows the pressing block to drive the locking plate to move.

[0019] Furthermore, a second slide groove is provided inside the first slide groove, and a second slider is slidably connected inside the second slide groove. The outer wall of the second slider is fixedly connected to the first slider. The addition of the first slide groove restricts the movement trajectory of the first slider.

[0020] Furthermore, the cross-sectional shape of the second groove is set to square, and the number of ventilation holes is set to multiple, which are distributed in a circumferential array on the outer wall of the baffle. The addition of ventilation holes allows the gas in the second groove to enter the interior of the series ammonia synthesis tower.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. The series ammonia synthesis tower with pressure self-regulation function described in this invention allows for adaptive adjustment of the gas intake into the main body of the series ammonia synthesis tower. This is achieved by setting a first rotating plate at one end of the drive shaft, a connecting rod on one side of the outer wall of the first rotating plate, a second rotating plate at one end of the connecting rod, a first connecting plate on the outer wall of the connecting rod, a second connecting plate on the outer wall of the first connecting plate, a rack on the outer wall of the second connecting plate, a rotating rod on the outer wall of the baffle, a gear on the outer wall of the rotating rod, a first movable plate on the outer wall of the rotating rod, and a second... The movable plate has a baffle plate on its outer wall, which allows the air intake and exhaust volume of the ventilation holes to be changed. In this invention, because the gas inside the series ammonia synthesis tower reacts continuously, the thermocouples and electric heaters will gradually wear out after a period of use, resulting in a decrease in the heating efficiency inside the series ammonia synthesis tower, and consequently a decrease in the reaction efficiency inside the series ammonia synthesis tower. This device can adjust the gas flow rate so that the gas reaction consumption is proportional to the gas intake volume, so that the gas pressure inside the series ammonia synthesis tower will not increase, and the inside of the series ammonia synthesis tower will not be damaged.

[0023] 2. The series-connected ammonia synthesis tower with pressure self-regulation function described in this invention can intercept the gas inside the feed pipe. This is achieved by setting a second rotating plate inside a first groove, a driven shaft on the outer wall of the second rotating plate, a third rotating plate at one end of the driven shaft, a connecting block on the outer wall of the third rotating plate, a strip groove on the outer wall of the movable plate, a moving plate on the outer wall of the movable plate, a first magnet on the outer wall of the moving plate, a second magnet at one end of the moving rod, a pressing block inside the third groove, a first sliding groove on the outer wall of the pressing block, a second sliding groove inside the first sliding groove, and a locking plate on the outer wall of the first sliding block. The locking plate can move into the third groove. In this invention, when it is necessary to move the locking plate into the third groove, the motor can be started. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a front sectional view of the first groove of the present invention;

[0027] Figure 3 This is a side view of the baffle of the present invention;

[0028] Figure 4 This is a side sectional view of the movable block of the present invention;

[0029] Figure 5 This is a side view of the movable plate of the present invention;

[0030] Figure 6 This is a main sectional view of the stabilizing block of the present invention;

[0031] Figure 7 This is a side view of the rack of the present invention.

[0032] In the diagram: 1. Ammonia synthesis tower body; 2. Feed pipe; 3. Discharge pipe; 4. Thermocouple; 5. Fixing block; 6. First groove; 7. Motor; 8. Drive shaft; 9. First support plate; 10. First rotating plate; 11. Connecting rod; 12. First connecting plate; 13. Second connecting plate; 14. Second groove; 15. Baffle; 16. Ventilation hole; 17. Rotating rod; 18. Gear; 19. Rack; 20. First movable rod; 21. Second movable rod; 22. Baffle plate; 23. 24. Movable block; 25. Movable groove; 26. Second rotating plate; 27. Driven shaft; 28. Second support plate; 29. ​​Third rotating plate; 30. Movable plate; 31. Strip groove; 32. Connecting block; 33. Moving plate; 34. First magnet; 35. Stabilizing block; 36. Third groove; 37. Moving rod; 38. Second magnet; 39. Pressing block; 40. Spring; 41. First slide groove; 42. First slider; 43. Engaging plate; 44. Second slide groove; 45. Second slider. Detailed Implementation

[0033] 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 scope of protection of the present invention.

[0034] Please see Figures 1-7 The present invention provides the following technical solution:

[0035] A series-connected ammonia synthesis tower with autonomous pressure regulation function, comprising an ammonia synthesis tower body 1;

[0036] Feed pipe 2 is fixedly connected to one side of the outer wall of the ammonia synthesis tower body 1;

[0037] The discharge pipe 3 is fixedly connected to the bottom end of the ammonia synthesis tower body 1, and the ammonia synthesis tower body 1 is connected to the discharge pipe 3.

[0038] Thermocouple 4 is fixedly connected inside the ammonia synthesis tower body 1;

[0039] A fixing block 5 is fixedly connected to the outer wall of the feed pipe 2. A first groove 6 is formed inside the fixing block 5. A motor 7 is fixedly connected inside the first groove 6. A drive shaft 8 is fixedly connected to one end of the output shaft of the motor 7. A first support plate 9 is rotatably connected to the outer wall of the drive shaft 8. The outer wall of the first support plate 9 is fixedly connected to the inside of the first groove 6. A first rotating plate 10 is fixedly connected to one end of the drive shaft 8. A connecting rod 11 is fixedly connected to the outer wall of the first rotating plate 10. A first connecting plate 12 is rotatably connected to the outer wall of the connecting rod 11. A second connecting plate 13 is hinged to the outer wall of the feed pipe 2. A second groove 14 is provided inside the feed pipe 2. One end of the second connecting plate 13 passes through the inside of the second groove 14. The second connecting plate 13 is slidably connected to the feed pipe 2. A baffle 15 is fixedly connected inside the second groove 14. A ventilation hole 16 is provided on the outer wall of the baffle 15. A rotating rod 17 is rotatably connected to the outer wall of the baffle 15. A gear 18 is fixedly connected to the outer wall of the rotating rod 17. A rack 19 is fixedly connected to one end of the second connecting plate 13. The rack 19 is meshed with the gear 18.

[0040] In a preferred embodiment, a first movable rod 20 is fixedly connected to the outer wall of the rotating rod 17. A second movable rod 21 is hinged to one end of the first movable rod 20. A baffle plate 22 is hinged to the end of the second movable rod 21 away from the first movable rod 20. When the second movable rod 21 moves, it will drive the baffle plate 22 to move.

[0041] In a preferred embodiment, a movable block 23 is hinged to the outer wall of the baffle 15, and a movable groove 24 is provided on the outer wall of the movable block 23. The baffle 22 is slidably connected to the movable groove 24. When the baffle 22 moves, the baffle 22 will drive the movable block 23 to move.

[0042] In a preferred embodiment, the cross-sectional shape of the second groove 14 is set to square, and the number of ventilation holes 16 is set to multiple. The multiple ventilation holes 16 are distributed in a circumferential array on the outer wall of the baffle 15. When the baffle 22 moves, the ventilation volume of the ventilation holes 16 can be changed.

[0043] The working principle of this invention is as follows: When using this device, if it is necessary to change the gas inlet and outlet flow, the motor 7 is started. The output shaft of the motor 7 drives the drive shaft 8 to rotate inside the first groove 6. Simultaneously, the drive shaft 8 rotates with the first support plate 9. The drive shaft 8 also drives the first rotating plate 10 to rotate within the first groove 6. The first rotating plate 10 also drives the connecting rod 11 to rotate within the first groove 6. Simultaneously, the connecting rod 11 drives the second rotating plate 25 to rotate within the first groove 6. The internal circular motion causes the connecting rod 11 to simultaneously drive the first connecting plate 12 to move, causing the first connecting plate 12 to swing within the first groove 6. The first connecting plate 12 then drives the second connecting plate 13 to move, causing the second connecting plate 13 to slide within the first groove 6. Simultaneously, the second connecting plate 13 slides within the second groove 14. The second connecting plate 13 also drives the rack 19 to move, causing the rack 19 to slide within the second groove 14. The rack 19 simultaneously drives the gear 18 to move, causing the rack 19 and gear 18 to mesh, resulting in the gear 18 rotating. The wheel 18 makes a small circular motion inside the second groove 14. Simultaneously, the gear 18 drives the rotating rod 17 to rotate, causing the rotating rod 17 and the baffle 15 to rotate. The rotating rod 17 also drives the first movable rod 20 to move, causing it to rotate within the second groove 14. The first movable rod 20 also drives the second movable rod 21 to move, causing it to oscillate within the second groove 14. The second movable rod 21 also drives the baffle plate 22 to move within the second groove 14, while simultaneously sliding within the movable groove 24. The baffle plate 22 will swing inside the second groove 14, causing the baffle plate 22 to drive the movable block 23 to move. The movable block 23 will rotate slightly inside the second groove 14. When the baffle plate 22 moves inside the second groove 14, the baffle plate 22 will move away from or towards the ventilation hole 16. When the baffle plate 22 is close to the ventilation hole 16, the airflow through the ventilation hole 16 will decrease. When the baffle plate 22 is away from the ventilation hole 16, the airflow through the ventilation hole 16 will increase. This allows the baffle plate 22 to change the size of the ventilation hole 16. When the baffle plate 22 reaches the appropriate position, the motor 7 will stop.

[0044] Please see Figures 1-6 The present invention provides a technical solution: a series ammonia synthesis tower with pressure self-regulation function, wherein a second rotating plate 25 is rotatably connected to the end of the connecting rod 11 away from the first rotating plate 10, a driven shaft 26 is fixedly connected to the outer wall of the second rotating plate 25, a second support plate 27 is rotatably connected to the outer wall of the driven shaft 26, and the outer wall of the second support plate 27 is fixedly connected to the inside of the first groove 6. When the second rotating plate 25 moves, the second rotating plate 25 can drive the driven shaft 26 to move.

[0045] In a preferred embodiment, a third rotating plate 28 is fixedly connected to one end of the driven shaft 26, a movable plate 29 is provided inside the first groove 6, a strip groove 30 is provided on the outer wall of the movable plate 29, a connecting block 31 is slidably connected inside the strip groove 30, and the outer wall of the connecting block 31 is fixedly connected to the outer wall of the third rotating plate 28. When the movable plate 29 moves, the movable plate 29 will slide inside the first groove 6.

[0046] In a preferred embodiment, a movable plate 32 is fixedly connected to the outer wall of the movable plate 29. One end of the movable plate 32 passes through the inside of the second groove 14. The movable plate 32 is slidably connected to the feed pipe 2. A first magnet 33 is fixedly connected to the outer wall of the movable plate 32. When the movable plate 32 moves, the movable plate 32 can drive the first magnet 33 to move.

[0047] In a preferred embodiment, a stabilizing block 34 is fixedly connected inside the second groove 14, and a third groove 35 is formed inside the stabilizing block 34. A moving rod 36 is provided inside the third groove 35. One end of the moving rod 36 passes through the outer wall of the stabilizing block 34 and is slidably connected to the stabilizing block 34. A second magnet 37 is fixedly connected to one end of the moving rod 36. The first magnet 33 and the second magnet 37 repel each other. When the moving rod 36 moves, the moving rod 36 can slide with the stabilizing block 34.

[0048] In a preferred embodiment, a pressing block 38 is provided inside the third groove 35. The outer wall of the pressing block 38 is fixedly connected to one end of the moving rod 36. A spring 39 is provided between the outer wall of the pressing block 38 and the third groove 35. A first sliding groove 40 is provided on the outer wall of the pressing block 38. A first slider 41 is slidably connected inside the first sliding groove 40. A locking plate 42 is hinged to the outer wall of the first slider 41. One end of the locking plate 42 passes through the outer wall of the stabilizing block 34. The locking plate 42 is slidably connected to the stabilizing block 34. When the first slider 41 moves, the first slider 41 will drive the locking plate 42 to move.

[0049] In a preferred embodiment, a second slide groove 43 is provided inside the first slide groove 40, and a second slider 44 is slidably connected inside the second slide groove 43. The outer wall of the second slider 44 is fixedly connected to the first slider 41. When the first slider 41 moves, the first slider 41 will drive the second slider 44 to move.

[0050] The working principle of this invention is as follows: When the second rotating plate 25 moves, it drives the driven shaft 26 to move, allowing the driven shaft 26 to rotate within the first groove 6. Simultaneously, the driven shaft 26 rotates with the second support plate 27, and also drives the third rotating plate 28 to move, causing it to rotate circumferentially within the first groove 6. The third rotating plate 28 also drives the connecting block 31 to move, causing it to rotate circumferentially within the first groove 6. Simultaneously, the connecting block 31 moves within the strip groove 30, allowing the third rotating plate 28 to pass through the connecting block 31. This can drive the movable plate 29 to move, allowing it to slide within the first groove 6. Simultaneously, the movable plate 29 drives the moving plate 32 to move, causing it to slide within both the first and second grooves 14. The moving plate 32 also drives the first magnet 33 to move, causing it to slide within the second groove 14. This causes the first magnet 33 to move away from the second magnet 37, gradually dissipating the repulsive force from the first magnet 33. Simultaneously, this causes the spring 39 to lose its external compressive force, resulting in the spring 3... 9 can return to the initial position, and spring 39 will gradually contract, causing spring 39 to drive the extrusion block 38 to move, making the extrusion block 38 slide inside the third groove 35. The cross-sectional shape of the extrusion block 38 is set as an isosceles trapezoid, so that the extrusion block 38 can drive the first slider 41 to move, making the first slider 41 slide inside the first slide groove 40. The first slider 41 simultaneously drives the second slider 44 to move, making the second slider 44 slide inside the second slide groove 43. The extrusion block 38 simultaneously drives the moving rod 36 to move, making the moving rod 36 slide inside the third groove 35. The sliding motion involves the moving rod 36 sliding within the second groove 14, which in turn drives the second magnet 37 to return to its initial position. Simultaneously, the first slider 41 drives the locking plate 42 to slide within the third groove 35. The locking plate 42 also slides against the stabilizing block 34. The locking plate 42 slides within the second groove 14, causing it to slide into the third groove 35, allowing the gas inside the second groove 14 to enter the main body 1 of the series ammonia synthesis tower through the vent.

[0051] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A series ammonia synthesis tower with pressure autonomous regulation function, comprising an ammonia synthesis tower body (1). The feed pipe (2) is fixedly connected to one side of the outer wall of the ammonia synthesis tower body (1); The discharge pipe (3) is fixedly connected to the bottom end of the ammonia synthesis tower body (1), and the ammonia synthesis tower body (1) is connected to the discharge pipe (3); Thermocouple (4) is fixedly connected inside the ammonia synthesis tower body (1); Its features are: A fixing block (5) is fixedly connected to the outer wall of the feed pipe (2). A first groove (6) is provided inside the fixing block (5). A motor (7) is fixedly connected inside the first groove (6). A drive shaft (8) is fixedly connected to one end of the output shaft of the motor (7). A first support plate (9) is rotatably connected to the outer wall of the drive shaft (8). The outer wall of the first support plate (9) is fixedly connected to the inside of the first groove (6). A first rotating plate (10) is fixedly connected to one end of the drive shaft (8). A connecting rod (11) is fixedly connected to the outer wall of the first rotating plate (10). A first connecting plate (12) is rotatably connected to the outer wall of the connecting rod (11). 12) A second connecting plate (13) is hinged to the outer wall. A second groove (14) is opened inside the feed pipe (2). One end of the second connecting plate (13) passes through the inside of the second groove (14). The second connecting plate (13) is slidably connected to the feed pipe (2). A baffle (15) is fixedly connected inside the second groove (14). A ventilation hole (16) is opened on the outer wall of the baffle (15). A rotating rod (17) is rotatably connected to the outer wall of the baffle (15). A gear (18) is fixedly connected to the outer wall of the rotating rod (17). A rack (19) is fixedly connected to one end of the second connecting plate (13). The rack (19) meshes with the gear (18). The connecting rod (11) is rotatably connected to a second rotating plate (25) at the end away from the first rotating plate (10). A driven shaft (26) is fixedly connected to the outer wall of the second rotating plate (25). A second support plate (27) is rotatably connected to the outer wall of the driven shaft (26). The outer wall of the second support plate (27) is fixedly connected to the inside of the first groove (6). One end of the driven shaft (26) is fixedly connected to a third rotating plate (28). The first groove (6) is provided with a movable plate (29). The outer wall of the movable plate (29) is provided with a strip groove (30). A connecting block (31) is slidably connected inside the strip groove (30). The outer wall of the connecting block (31) is fixedly connected to the outer wall of the third rotating plate (28). The movable plate (29) is fixedly connected to the outer wall of the movable plate (29). One end of the movable plate (32) passes through the inside of the second groove (14). The movable plate (32) is slidably connected to the feed pipe (2). The outer wall of the movable plate (32) is fixedly connected to the first magnet (33). A stabilizing block (34) is fixedly connected inside the second groove (14). A third groove (35) is provided inside the stabilizing block (34). A moving rod (36) is provided inside the third groove (35). One end of the moving rod (36) passes through the outer wall of the stabilizing block (34). The moving rod (36) is slidably connected to the stabilizing block (34). A second magnet (37) is fixedly connected to one end of the moving rod (36). The first magnet (33) and the second magnet (37) repel each other.

2. The series-connected ammonia synthesis tower with autonomous pressure regulation function according to claim 1, characterized in that: The outer wall of the rotating rod (17) is fixedly connected to a first movable rod (20), and a second movable rod (21) is hinged to one end of the first movable rod (20). A baffle plate (22) is hinged to the end of the second movable rod (21) away from the first movable rod (20).

3. A series ammonia synthesis tower with autonomous pressure regulation function according to claim 2, characterized in that: The outer wall of the baffle (15) is hinged with a movable block (23), and the outer wall of the movable block (23) is provided with a movable groove (24). The baffle (22) is slidably connected to the movable groove (24).

4. A series ammonia synthesis tower with autonomous pressure regulation function according to claim 1, characterized in that: The third groove (35) is provided with a pressing block (38). The outer wall of the pressing block (38) is fixedly connected to one end of the moving rod (36). A spring (39) is provided between the outer wall of the pressing block (38) and the third groove (35). The outer wall of the pressing block (38) is provided with a first sliding groove (40). A first slider (41) is slidably connected inside the first sliding groove (40). A locking plate (42) is hinged to the outer wall of the first slider (41). One end of the locking plate (42) passes through the outer wall of the stabilizing block (34). The locking plate (42) is slidably connected to the stabilizing block (34).

5. A series ammonia synthesis tower with autonomous pressure regulation function according to claim 4, characterized in that: The first slide groove (40) has a second slide groove (43) inside, and a second slider (44) is slidably connected inside the second slide groove (43). The outer wall of the second slider (44) is fixedly connected to the first slider (41).

6. A series ammonia synthesis tower with autonomous pressure regulation function according to claim 1, characterized in that: The cross-sectional shape of the second groove (14) is set to square, and the number of ventilation holes (16) is set to multiple, with the multiple ventilation holes (16) arranged in a circumferential array on the outer wall of the baffle (15).