Self-cleaning hydrogen purification adsorption tower

Abstract

The application discloses a kind of self-cleaning type hydrogen purification adsorption tower, belong to self-cleaning type hydrogen purification adsorption tower technical field, the application includes the tower body of vertical placement, the lower part of the tower body is equipped with inlet pipe, and the upper part of tower body is equipped with outlet pipe, the inner wall of the upper part of tower body is fixedly installed with fixed seat, and the inner side of fixed seat is installed with lifting plate, the upper part of the inner wall of tower body is elastically rotatably installed with rotary seat, and fixedly connected with elastic rubber between lifting plate and rotary seat, the upper part of the tower body is fixedly installed with flushing gas pipe, and the top of tower body is fixedly installed with motor, and the motor is connected with adjusting assembly of control lifting plate lifting between lifting plate, the self-cleaning type hydrogen purification adsorption tower can be further assisted in adsorption process Pressurization, to improve adsorption effect, and can realize efficient backflush, cleaning after adsorption is completed, ensure the regeneration adsorption effect of adsorbent.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of adsorption towers, and particularly relates to a self-cleaning hydrogen purification adsorption tower. BACKGROUND

[0002] Hydrogen is a clean energy and an important industrial raw material, and is increasingly widely applied in the fields of new energy, chemical industry, electronics and the like. The purity of hydrogen directly affects the efficiency of related processes, product quality and equipment safety. In order to achieve atmospheric control, pollution control and reduce hydrogen production cost, a hydrogen purification adsorption tower is needed to purify and recover hydrogen in industrial waste gas (such as refinery gas, coke oven gas, chemical tail gas). In this process, the adsorbent can simultaneously remove atmospheric pollutants such as sulfides, nitrogen oxides and volatile organic compounds in the waste gas.

[0003] The prior art (Chinese patent with publication number CN119075585A and publication date December 6, 2024) discloses a novel hydrogen recovery adsorption tower for absorbing hydrogen impurities, comprising a recovery adsorption tower body, a molecular sieve storage cavity, a partition plate, a molecular sieve inlet, a molecular sieve outlet, a water storage cavity, an air inlet, an air outlet, a cleaning brush and a water spraying distribution head. The lower end of the inner side of the recovery adsorption tower body is fixedly connected with the partition plate. The upper end of the partition plate is provided with the molecular sieve storage cavity for storing molecular sieve raw materials. The top end of the recovery adsorption tower body is provided with the molecular sieve inlet. The air inlet and outlet of the adsorption tower are designed on the side surface, and the inlet and outlet of the molecular sieve are designed on the top and lower side of the tank body. The overall structure realizes the mutual non-influence of pipeline installation and molecular sieve replacement. The molecular sieve is separated by the hole plate, and the effect of separating the molecular sieve from the adsorbed water is achieved. After a period of accumulation, the water can be discharged through the bottom ball valve.

[0004] The prior art (Chinese patent with publication number CN117427460A and publication date January 23, 2024) discloses an ultrahigh-purity hydrogen separator and relates to the technical field of hydrogen treatment. The ultrahigh-purity hydrogen separator comprises a body, an air inlet heat transfer mechanism for assisting heat dissipation of hot hydrogen entering the body, an adsorption pressurization mechanism for assisting pressurization of hydrogen by using the heat of hydrogen itself, and an adsorption adjustment mechanism for adjusting the adsorption time of adsorbate and separated hydrogen. In the process of use, the ultrahigh-purity hydrogen separator can pressurize hydrogen that needs to be separated by using the heat of high-temperature hydrogen itself, and can consume part of the heat of hydrogen during pressurization, thereby achieving a cooling effect. When hydrogen enters the separator and is separated by the adsorption box, the contact time of hydrogen and the adsorption box also changes adaptively with the temperature of hydrogen itself, thereby ensuring the overall adsorption effect of hydrogen and the adsorption box and avoiding the influence of high hydrogen temperature on the adsorption effect of the adsorption box on hydrogen.

[0005] Existing hydrogen purification adsorption towers can clean the tower walls through cleaning components and the adsorbent through backflushing during use. However, due to the large number and complexity of impurities in industrial waste gas, and the simple backflushing structure, when the molecular sieve is under compression and backflushing occurs, impurities may desorb from the surface of the molecular sieve and form a high-concentration area around it, hindering further desorption, which has certain defects in use. Summary of the Invention

[0006] The purpose of this invention is to provide a self-cleaning hydrogen purification and adsorption tower to solve the problem mentioned in the background art that the backwash structure of current hydrogen purification and adsorption towers on the market is simple, which makes it possible for impurities to form a high concentration area around the molecular sieve after desorption from the molecular sieve surface when backwashing under a compressed state, thus hindering further desorption.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a self-cleaning hydrogen purification adsorption tower, comprising a vertically placed tower body, an inlet pipe installed at the lower part of the tower body, an outlet pipe installed at the upper part of the tower body, and an inclined support mesh fixedly installed on the inner side of the tower body, with molecular sieve particles filled above the support mesh. A fixed seat is fixedly installed on the upper inner wall of the tower body, and a lifting plate is lifted and lowered on the inner side of the fixed seat. A rotating seat is elastically rotatably installed on the upper inner wall of the tower body, and an elastic rubber component is fixedly connected between the lifting plate and the rotating seat. Furthermore, the elastic rubber parts are initially twisted. A drive shaft is fixedly installed in the middle of the rotating seat, and a pressing component for compacting molecular sieve particles is installed on the outer side of the drive shaft. During the reciprocating rotation of the drive shaft, the pressing component is driven to reciprocate. A stirring shaft is rotatably connected to the lower end of the drive shaft through a one-way bearing, and stirring components are evenly arranged on the outer side of the stirring shaft. A flushing air pipe is fixedly installed on the upper part of the tower body, and a motor is fixedly installed on the top of the tower body. An adjustment component for controlling the lifting and lowering of the lifting plate is connected between the motor and the lifting plate.

[0008] Preferably, the lifting plate is arranged in a ring structure, and the inner diameter of the lifting plate is smaller than the inner diameter of the rotating seat. The lifting plate and the rotating seat are coaxially arranged, and the lifting plate moves upward under air pressure and stretches the elastic rubber part.

[0009] Preferably, a first spring is uniformly fixedly connected between the rotating seat and the inner wall of the tower body. When the lifting plate moves upward, the elastic rubber part unfolds under the pulling of the lifting plate and the action of gas pressure. After unfolding, the elastic rubber part forms a cylindrical structure. At the same time, the unfolding process of the elastic rubber part drives the rotating seat to rotate elastically.

[0010] Preferably, the rotating seat drives the driving shaft to rotate synchronously during rotation, the outer side of the driving shaft is provided with a spiral guide groove, the pressing assembly comprises a lifting seat which is slidingly installed on the inner side of the tower body, the driving shaft penetrates the lifting seat, and the inner wall of the penetrating hole of the lifting seat is embeddedly installed with a ball which rolls along the guide groove, and the lifting seat is driven to lift and adjust on the inner side of the tower body through the guide groove and the ball during rotation of the rotating seat.

[0011] Preferably, the lower side of the lifting seat is elastically connected with a pressing net through a second spring, the pressing net is attached to the top of the molecular sieve particle filler during downward movement, and the pressing net is separated from the top of the molecular sieve particle filler when the lifting seat drives the pressing net to move upward to the highest position.

[0012] Preferably, the stirring assembly comprises a stirring rod which is uniformly fixedly installed on the outer side of the stirring shaft, the outer side of the stirring rod is elastically connected with a sleeve, the inner wall of the middle position of the tower body is uniformly fixedly installed with an abutting member, the sleeve is intermittently driven to abut against the abutting member during rotation of the stirring shaft, and the sleeve elastically adjusts when abutting against the abutting member.

[0013] Preferably, the stirring shaft and the driving shaft are provided with air channels, the upper ports of the air channels are correspondingly arranged with the positions of the flushing gas pipes, one end of the stirring rod which is located on the inner side of the sleeve is fixedly connected with a piston block which is in interference sliding connection with the sleeve, a third spring is fixedly connected between the sleeve and the piston block, a gas conveying pipe is penetratingly connected on the stirring rod and the piston block, the gas conveying pipe is in communication with the air channels on the stirring shaft, a one-way valve structure is arranged on the gas conveying pipe, a plurality of air holes are uniformly arranged on the sleeve, and the air holes discharge the gas sucked from the air channels by the gas conveying pipe when the stirring rod and the sleeve are contracted and adjusted.

[0014] Preferably, the driving shaft drives the stirring shaft to rotate synchronously when driving the lifting seat to move upward, the stirring shaft remains stationary when the driving shaft drives the lifting seat to move downward, and the lower end of the stirring shaft is rotatably connected to the upper side of the supporting net seat through a rotating damping member.

[0015] Preferably, the adjusting assembly comprises a reciprocating screw rod which is fixedly installed on the output end of the motor, the upper end of the lifting plate is fixedly installed with a fixed frame, the upper end of the fixed frame is fixedly installed with a guide rod, the outer side of the reciprocating screw rod is threadedly connected with an adjusting seat, and the guide rod slidingly penetrates the adjusting seat.

[0016] Compared with the prior art, the self-cleaning hydrogen purification adsorption tower can further be assisted with pressurization during adsorption to improve the adsorption effect, fully purify and recover hydrogen in industrial waste gas, and realize efficient backflushing and cleaning after adsorption, thereby ensuring the regeneration and adsorption effect of the adsorbent.

[0017] 1. Equipped with a lifting plate, a rotating seat, and elastic components, the tower's internal pressure increases as gas is supplied through the inlet pipe. The lifting plate then moves upwards under this pressure, while the elastic components stretch and unfold under the pull of the lifting plate and the pressure, restoring their cylindrical shape. This causes the rotating seat to rotate. The elastic components further increase the internal pressure, enhancing the adsorption effect and enabling the complete purification and recovery of hydrogen from industrial waste gas.

[0018] When the intake pipe stops supplying gas, the rotating seat will rotate elastically under the force of the first spring, thereby twisting the elastic rubber part, so that the hydrogen on the lower inner side of the elastic rubber part can be squeezed downward, thus achieving automatic backflushing.

[0019] 2. It is equipped with a drive shaft, a lifting seat, and a pressure screen. As the drive shaft rotates, it can drive the lifting seat to adjust its height, thereby driving the pressure screen to adjust synchronously. This allows the pressure screen to compress the molecular sieve particles during adsorption, and when backflushing, the lifting seat can move the pressure screen upward to prevent the molecular sieve particles from being too compressed during backflushing, thus reducing the backflushing effect.

[0020] 3. Equipped with a stirring rod and sleeve, as the lifting seat moves the pressure screen upward, the drive shaft can drive the stirring shaft to rotate synchronously. At this time, the stirring rod and sleeve on the outside of the stirring shaft can stir the uncompressed molecular sieve particles, improving the desorption and backflushing effect. At the same time, when the stirring rod and sleeve are extended and retracted, the heating gas input into the flushing gas pipe can be transported, thereby achieving uniform heating of the molecular sieve particles.

[0021] Furthermore, a motor and a lifting plate are also provided. As the motor drives the reciprocating screw to rotate, the reciprocating screw can drive the lifting plate to reciprocate and adjust through the adjusting seat, thereby causing the elastic rubber parts to reciprocate and twist. During the twisting process of the elastic rubber parts, the speed at which the backwash gas impacts the molecular sieve can be accelerated, realizing pulse rinsing and further improving the self-cleaning effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0023] Figure 2 This is a schematic cross-sectional view of the tower body of the present invention;

[0024] Figure 3 This is a schematic diagram of the installation structure of the elastic rubber part and the pressure mesh of the present invention;

[0025] Figure 4 This is a schematic diagram of the connection structure of the lifting plate, rotating seat, and elastic rubber parts of the present invention;

[0026] Figure 5The figure is a schematic view of the sectional structure of the elastic rubber piece of the present application.

[0027] Figure 6 The figure is a schematic view of the connection structure of the lifting seat and the pressing net of the present application.

[0028] Figure 7 The figure is a schematic view of the sectional structure of the lifting seat and the pressing net of the present application.

[0029] Figure 8 The figure is a schematic view of the sectional structure of the lifting seat and the pressing net of the present application. Figure 7 The figure is a schematic view of the sectional structure of the lifting seat and the pressing net of the present application.

[0030] Figure 9 The figure is a schematic view of the connection structure of the stirring rod and the sleeve of the present application.

[0031] Figure 10 The figure is a schematic view of the connection structure of the lifting plate and the adjusting seat of the present application.

[0032] In the figure: 1, tower body; 2, air inlet pipe; 3, air outlet pipe; 4, support net seat; 5, fixed seat; 6, lifting plate; 7, rotating seat; 8, elastic rubber piece; 9, first spring; 10, driving shaft; 11, lifting seat; 12, guide groove; 13, ball; 14, pressing net; 15, second spring; 16, stirring shaft; 17, stirring rod; 18, sleeve; 19, piston block; 20, air conveying pipe; 21, third spring; 22, air hole; 23, abutting piece; 24, flushing air pipe; 25, motor; 26, fixed frame; 27, guide rod; 28, adjusting seat; 29, reciprocating screw rod. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0034] Embodiment one: the existing hydrogen purification adsorption tower cannot loosen the molecular sieve particles when backflushing, so that the impurities desorbed from the surface of the molecular sieve may form a high concentration area around, hindering further desorption. In order to solve this technical problem, the present embodiment discloses the following technical content, please refer to Figures 1-9The self-cleaning hydrogen purification adsorption tower shown in the figure, including the vertically placed tower body 1, the lower part of the tower body 1 is provided with an air inlet pipe 2, and the upper part of the tower body 1 is provided with an air outlet pipe 3, and the inner side of the tower body 1 is fixedly provided with an inclined support net seat 4, and the upper part of the support net seat 4 is filled with molecular sieve particles, the upper inner wall of the tower body 1 is fixedly provided with a fixed seat 5, and the inner side of the fixed seat 5 is liftably provided with a lifting plate 6, the upper inner wall of the tower body 1 is elastically rotatably provided with a rotating seat 7, and the lifting plate 6 and the rotating seat 7 are fixedly connected with an elastic rubber piece 8, and the elastic rubber piece 8 is initially provided in a twisted state, a driving shaft 10 is fixedly installed at the middle position of the rotating seat 7, and the outer side of the driving shaft 10 is liftably provided with a compaction assembly for compacting the molecular sieve particles, and the driving shaft 10 drives the compaction assembly to reciprocatingly lift during reciprocating rotation, and the lower end of the driving shaft 10 is rotatably connected with an agitating shaft 16 through a one-way bearing, and the outer side of the agitating shaft 16 is uniformly provided with an agitating assembly, and the upper part of the tower body 1 is fixedly provided with a flushing gas pipe 24.

[0035] The lifting plate 6 is provided in an annular structure, the inner diameter of the lifting plate 6 is smaller than the inner diameter of the rotating seat 7, the lifting plate 6 and the rotating seat 7 are coaxially arranged, the lifting plate 6 moves upward and stretches the elastic rubber piece 8 under the action of gas pressure, the first spring 9 is uniformly fixedly connected between the rotating seat 7 and the inner wall of the tower body 1, the elastic rubber piece 8 is unfolded under the pulling of the lifting plate 6 and the action of gas pressure when the lifting plate 6 moves upward, the elastic rubber piece 8 is provided in a cylindrical structure after unfolding, the elastic rubber piece 8 drives the rotating seat 7 to elastically rotate during unfolding, the rotating seat 7 drives the driving shaft 10 to synchronously rotate during rotation, the outer side of the driving shaft 10 is provided with a helical guide groove 12, the compaction assembly comprises a lifting seat 11 which is liftably installed on the inner side of the tower body 1, the driving shaft 10 penetrates through the lifting seat 11, the rolling ball 13 is embeddedly installed on the inner wall of the penetrating hole of the lifting seat 11, the rolling ball 13 rolls along the guide groove 12, the lifting seat 11 is driven to lift and adjust on the inner side of the tower body 1 through the guide groove 12 and the rolling ball 13 during the rotation of the rotating seat 7, the pressing net 14 is elastically connected to the lifting seat 11 through the second spring 15 below the lifting seat 11, the pressing net 14 is attached to the top of the molecular sieve particle filler during downward movement, and the pressing net 14 is separated from the top of the molecular sieve particle filler when the lifting seat 11 drives the pressing net 14 to move upward to the highest position.

[0036] As Figures 1-8As shown, when the hydrogen in the industrial waste gas needs to be purified, the gas can be sent through the gas inlet pipe 2 to increase the gas pressure inside the tower body 1. At this time, the lifting plate 6 moves upward along the inner side of the fixed seat 5 under the action of the gas pressure, and the elastic rubber part 8 is stretched and expanded under the action of the gas pressure and the pulling of the lifting plate 6, so that the elastic rubber part 8 returns to a cylindrical shape. During the expansion of the elastic rubber part 8, the twisted part is restored, thereby driving the rotating seat 7 to rotate. During the deformation of the elastic rubber part 8, the gas pressure in the tower can be further increased, thereby further improving the adsorption effect. The hydrogen in the industrial waste gas (such as refinery gas, coke oven gas, and chemical tail gas) can be purified and recovered. In this process, the molecular sieve adsorbent can simultaneously remove sulfides, nitrogen oxides, volatile organic compounds, and other air pollutants in the waste gas.

[0037] At the same time, the rotating seat 7 can drive the drive shaft 10 to rotate synchronously. At this time, the ball 13 will roll along the guide groove 12 to drive the lifting seat 11 to move downward, thereby driving the pressing net 14 to move synchronously. When adsorption is performed, the pressing net 14 can press the molecular sieve particles. When the gas inlet pipe 2 stops sending gas, the rotating seat 7 will elastically rotate under the action of the elastic force of the first spring 9, thereby twisting the elastic rubber part 8. The elastic rubber part 8 can extrude the hydrogen on the inner side of the lower part downward, thereby realizing preliminary automatic backflushing. At the same time, the rotating seat 7 drives the drive shaft 10 to rotate in the opposite direction, thereby driving the lifting seat 11 to move upward with the pressing net 14, so as to avoid the molecular sieve particles being too tightly pressed to reduce the backflushing effect.

[0038] The stirring assembly includes a stirring rod 17 uniformly fixedly installed on the outer side of the stirring shaft 16. The outer side of the stirring rod 17 is elastically and telescopically connected with a sleeve 18. The inner wall of the middle position of the tower body 1 is uniformly fixedly installed with a contact part 23. The sleeve 18 is intermittently driven to approach and contact the contact part 23 during the rotation of the stirring shaft 16. The sleeve 18 elastically and telescopically adjusts when contacting the contact part 23. The stirring shaft 16 and the drive shaft 10 are provided with air channels. The upper ports of the air channels are correspondingly arranged at the positions of the flushing gas pipe 24. One end of the stirring rod 17 located on the inner side of the sleeve 18 is fixedly connected with a piston block 19 which is in interference sliding connection with the sleeve 18. The third spring 21 is fixedly connected between the sleeve 18 and the piston block 19. The stirring rod 17 and the piston block 19 are throughly connected with the gas conveying pipe 20. The gas conveying pipe 20 is in communication with the air channels on the stirring shaft 16. The gas conveying pipe 20 is provided with a one-way valve structure. The sleeve 18 is uniformly provided with air holes 22. The air holes 22 discharge the gas sucked into the gas conveying pipe 20 from the air channels when the stirring rod 17 and the sleeve 18 are contracted and adjusted. The drive shaft 10 drives the stirring shaft 16 to synchronously rotate when the lifting seat 11 moves upward. The stirring shaft 16 remains stationary when the drive shaft 10 drives the lifting seat 11 to move downward. The lower end of the stirring shaft 16 is rotatably connected above the support net seat 4 through a rotating damping part.

[0039] As Figure 3 and Figures 7-9 shown, when the drive shaft 10 drives the lifting seat 11 to move down, the stirring shaft 16 can be prevented from rotating due to the effect of the one-way bearing. When the lifting seat 11 drives the pressing net 14 to move up, the drive shaft 10 can drive the stirring shaft 16 to rotate synchronously. At this time, the stirring rod 17 and the sleeve 18 outside the stirring shaft 16 can stir the molecular sieve particles that are not pressed tightly, thereby improving the desorption and backflushing effects. At the same time, during the rotation of the stirring rod 17 and the sleeve 18, the end of the sleeve 18 can contact the abutting member 23, so that the stirring rod 17 and the sleeve 18 are adjusted in extension and contraction. At this time, the piston block 19 can reciprocate inside the sleeve 18, so that the sleeve 18 can transport the heated flushing gas input from the flushing gas pipe 24 through the gas pipe 20 and the gas passages on the drive shaft 10 and the stirring shaft 16, thereby uniformly heating the molecular sieve particles and further improving the backflushing and cleaning effects.

[0040] In the embodiment, the technology disclosed is a further improvement based on the above-mentioned embodiment one. In the existing hydrogen purification adsorption tower, the flow rate of the flushing gas remains unchanged during the cleaning process, so that the flushing effect is limited. In order to further solve this technical problem, the embodiment discloses the following technical content, as shown in Figures 1-5 and Figure 10 The top of the tower body 1 is fixedly installed with a motor 25, and the motor 25 is connected with an adjusting assembly that controls the lifting of the lifting plate 6. The inner side of the fixed seat 5 is liftingly installed with the lifting plate 6. The upper inner wall of the tower body 1 is elastically rotationally installed with a rotating seat 7. The lifting plate 6 and the rotating seat 7 are fixedly connected with an elastic rubber member 8, and the elastic rubber member 8 is initially arranged in a twisted state. The adjusting assembly comprises a reciprocating screw rod 29 fixedly installed on the output end of the motor 25. The upper end of the lifting plate 6 is fixedly installed with a fixed frame 26. The upper end of the fixed frame 26 is fixedly installed with a guide rod 27. The outer side of the reciprocating screw rod 29 is threadedly connected with an adjusting seat 28. The guide rod 27 slidingly penetrates the adjusting seat 28.

[0041] During the self-cleaning, the motor 25 drives the reciprocating screw rod 29 to rotate, so that the reciprocating screw rod 29 drives the adjusting seat 28 to reciprocatingly lift through the threaded connection. At this time, the adjusting seat 28 drives the lifting plate 6 to reciprocatingly lift through the guide rod 27 and the fixed frame 26, so that the elastic rubber member 8 reciprocatingly stretches and twists. During the twisting of the elastic rubber member 8, part of the gas inside the elastic rubber member 8 can be squeezed out, so that the speed of the backflushing gas impacting the molecular sieve particles is accelerated, the pulse flushing is realized, and the self-cleaning effect is further improved.

[0042] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0043] Although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can be modified, or some of the technical features can be replaced by equivalent features, by those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A self-cleaning hydrogen purification adsorption tower, comprising a vertically placed tower body (1), an inlet pipe (2) installed at the lower part of the tower body (1), an outlet pipe (3) installed at the upper part of the tower body (1), and an inclined support mesh seat (4) fixedly installed on the inner side of the tower body (1), while molecular sieve particles are filled above the support mesh seat (4). Its features are, A fixed seat (5) is fixedly installed on the upper inner wall of the tower body (1), and a lifting plate (6) is installed on the inner side of the fixed seat (5). A rotating seat (7) is elastically rotatably installed on the upper inner wall of the tower body (1), and an elastic rubber part (8) is fixedly connected between the lifting plate (6) and the rotating seat (7). The elastic rubber part (8) is initially twisted. A drive shaft (10) is fixedly installed in the middle position of the rotating seat (7), and a device for compacting molecules is installed on the outer side of the drive shaft (10). The compaction assembly for sieving particles, and the drive shaft (10) drives the compaction assembly to move up and down during the reciprocating rotation. The lower end of the drive shaft (10) is rotatably connected to the stirring shaft (16) through a one-way bearing, and the stirring assembly is evenly arranged on the outer side of the stirring shaft (16). The upper part of the tower body (1) is fixedly installed with a flushing air pipe (24), and the top of the tower body (1) is fixedly installed with a motor (25). An adjustment assembly for controlling the lifting of the lifting plate (6) is connected between the motor (25) and the lifting plate (6).

2. The self-cleaning hydrogen purification adsorption tower according to claim 1, characterized in that: The lifting plate (6) is arranged in a ring structure, and the inner diameter of the lifting plate (6) is smaller than the inner diameter of the rotating seat (7). The lifting plate (6) and the rotating seat (7) are coaxially arranged. At the same time, the lifting plate (6) moves upward under the action of air pressure and stretches the elastic rubber part (8).

3. The self-cleaning hydrogen purification adsorption tower according to claim 2, characterized in that: The first spring (9) is uniformly fixed between the rotating seat (7) and the inner wall of the tower body (1). When the lifting plate (6) moves upward, the elastic rubber part (8) unfolds under the action of the lifting plate (6) and the gas pressure. After unfolding, the elastic rubber part (8) forms a cylindrical structure. At the same time, the elastic rubber part (8) drives the rotating seat (7) to rotate elastically during the unfolding process.

4. The self-cleaning hydrogen purification adsorption tower according to claim 1, characterized in that: During the rotation of the rotating seat (7), the drive shaft (10) is driven to rotate synchronously. A spiral guide groove (12) is provided on the outer side of the drive shaft (10). The clamping assembly includes a lifting seat (11) that is slidably installed on the inner side of the tower body (1). The drive shaft (10) passes through the lifting seat (11). A ball bearing (13) is embedded in the inner wall of the through hole of the lifting seat (11). The ball bearing (13) rolls along the guide groove (12). During the rotation of the rotating seat (7), the lifting seat (11) is driven to move up and down on the inner side of the tower body (1) through the guide groove (12) and the ball bearing (13).

5. The self-cleaning hydrogen purification adsorption tower according to claim 4, characterized in that: The lifting seat (11) is elastically connected to the pressure net (14) via a second spring (15) below. The pressure net (14) adheres to the top of the molecular sieve particle packing during the downward movement, and the pressure net (14) disengages from the top of the molecular sieve particle packing when the lifting seat (11) drives the pressure net (14) to move up to the highest position.

6. The self-cleaning hydrogen purification adsorption tower according to claim 1, characterized in that: The stirring assembly includes a stirring rod (17) uniformly fixedly installed on the outside of the stirring shaft (16), and a sleeve (18) elastically telescopically connected to the outside of the stirring rod (17). A contact element (23) is uniformly fixedly installed on the inner wall of the middle position of the tower body (1). During the rotation of the stirring shaft (16), the sleeve (18) is driven to intermittently approach and contact the contact element (23), and the sleeve (18) and the stirring rod (17) elastically telescopically adjust when they contact the contact element (23).

7. A self-cleaning hydrogen purification adsorption tower according to claim 6, characterized in that: Air passages are provided on the stirring shaft (16) and the drive shaft (10), and the upper port of the air passage is positioned corresponding to the flushing air pipe (24). The stirring rod (17) is fixedly connected to a piston block (19) that is interference-slidably connected to the sleeve (18) at one end inside the sleeve (18). A third spring (21) is fixedly connected in front of the sleeve (18) and the piston block (19). At the same time, an air supply pipe (20) is connected through the stirring rod (17) and the piston block (19). The air supply pipe (20) is connected to the air passage on the stirring shaft (16). A one-way valve structure is provided on the air supply pipe (20). Air holes (22) are evenly provided on the sleeve (18). When the stirring rod (17) and the sleeve (18) are contracted and adjusted, the air holes (22) discharge the gas drawn into the air passage from the air passage through the air supply pipe (20).

8. A self-cleaning hydrogen purification adsorption tower according to claim 7, characterized in that: When the drive shaft (10) drives the lifting seat (11) to move upward, it drives the stirring shaft (16) to rotate synchronously. When the drive shaft (10) drives the lifting seat (11) to move downward, the stirring shaft (16) remains stationary. The lower end of the stirring shaft (16) is rotatably connected to the upper part of the support mesh seat (4) through a rotation damping element.

9. A self-cleaning hydrogen purification adsorption tower according to claim 1, characterized in that: The adjustment assembly includes a reciprocating screw (29) fixedly installed at the output end of the motor (25), a fixed frame (26) fixedly installed at the upper end of the lifting plate (6), and a guide rod (27) fixedly installed at the upper end of the fixed frame (26). The outer side of the reciprocating screw (29) is threadedly connected to an adjustment seat (28), and the guide rod (27) slides through the adjustment seat (28).

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