A hydrogen purification device with diversion, impurity removal and anti-blocking

Abstract

The present invention discloses a hydrogen purification device with diversion, impurity removal and anti-blocking, comprising a main pipeline, wherein the end of the main pipeline is connected to a diversion pipe for diverting the gas, and the two ends of the diversion pipe are respectively connected to a first filter box and a second filter box, and the two ends of the first filter box and the second filter box are each connected to a branch pipe for transporting the hydrogen after impurities are removed. The hydrogen purification device with graded impurity removal allows the impurities and gases that are not easily cleaned by the forward nozzle in the adsorbent bed group to converge to the middle position of the blocked filter box, and the servo motor of the pushing structure is restarted and reversed, and the blocking conditions of the two filter boxes are swapped. During the movement of the push plate, the impurity gas that was previously blocked and backwashed is pushed to the automatic exhaust structure, thereby discharging the device, avoiding long-term use, impurities and miscellaneous gases causing blockage, resulting in poor filtering effect.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen impurity removal, and in particular to a hydrogen purification device capable of diverting impurities, removing impurities and preventing blockage. Background Art

[0002] Today, fossil energy depletion and environmental pollution are becoming increasingly severe. However, hydrogen combustion produces 3-5 times more heat than traditional fossil energy sources and is widely available. It can be produced through water electrolysis, fossil fuel conversion, and biomass decomposition of organic matter. Hydrogen and oxygen react to produce only water, which can be recycled. Therefore, hydrogen energy offers significant advantages for sustainable development and is more economical and energy-efficient.

[0003] Hydrogen is mainly produced through thermochemical conversion of fossil fuels such as natural gas, coal, and oil. The water gas method is often used to produce hydrogen industrially. Anthracite or coke as raw materials reacts with water vapor at high temperature to produce water gas. The main components of water gas are hydrogen and a small amount of carbon monoxide gas. The extracted water gas needs to be filtered to remove impurities from the mixed gas and smoke to extract purer hydrogen energy.

[0004] However, after the existing hydrogen impurity removal device filters and adsorbs the mixed gas, the filtered mixed gas and smoke gas are not easy to be discharged from the device. With long-term use, it is easy to cause blockage inside the device, resulting in poor filtering effect of the device. The existing cleaning method often requires manual cleaning of the equipment after shutdown, which affects the production efficiency of hydrogen purification and is also troublesome and laborious.

[0005] In response to the above problems, it is urgent to carry out innovative design based on the original hydrogen purification device. Summary of the Invention

[0006] The technical solution of the present invention addresses the technical problem that the existing technical solutions are too single, and provides a hydrogen purification device with diversion, impurity removal and anti-blocking, which is significantly different from the existing technology. It solves the problem mentioned in the above background technology that the existing cleaning method is often to manually operate the equipment for cleaning after shutdown, thereby affecting the production efficiency of hydrogen purification and being more troublesome and laborious.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a hydrogen purification device with diversion, impurity removal and anti-blocking, comprising a main pipeline, wherein the end of the main pipeline is connected to a diversion pipe for diverting the gas, and the two ends of the diversion pipe are respectively connected to a first filter box and a second filter box, and the two ends of the first filter box and the second filter box are respectively connected to a branch pipe for transporting the hydrogen after impurities are removed, a group of adsorbent bed groups are respectively arranged at the two ends inside the first filter box and the two ends inside the second filter box, and a forward flushing nozzle and a back flushing nozzle are respectively arranged on both sides of each group of adsorbent bed groups, and the forward flushing nozzle is arranged on the side close to the diversion pipe, and the first filter box and the second filter box are respectively provided with an auxiliary box on the side away from the diversion pipe, and each auxiliary box has two A cylinder is connected between each side and the corresponding branch pipe, and a group of trigger structures are arranged in each cylinder. A positive flushing pipe is provided between the two sides of the first filter box and the second filter box close to the side of the shunt pipe and the corresponding cylinder, and a backwashing pipe is connected between the two sides of the other side of the first filter box and the branch pipes at both ends of the second filter box, and a backwashing pipe is also connected between the two sides of the other side of the second filter box and the branch pipes at both ends of the first filter box. Each of the auxiliary boxes is equipped with an automatic exhaust structure on the side away from the shunt pipe, and a pushing structure for pushing miscellaneous gas is installed in the main pipeline. The output ends of the positive flushing pipe and the backwashing pipe are connected to the positive flushing nozzle and the backwashing nozzle on the first filter box and the second filter box respectively.

[0008] Preferably, the adsorbent bed group is composed of multiple layers, and each layer is composed of activated carbon porous solid material. The outer walls of the first filter box and the second filter box are both provided with sealed doors for replacing the adsorbent bed group.

[0009] Preferably, the nozzle opening of the forward nozzle is toward the surface of the adsorbent bed group close to the diverter tube, and the nozzle opening of the backflush nozzle is toward the surface of the adsorbent bed group away from the diverter tube, and the forward nozzle and the backflush nozzle are arranged corresponding to the number of beds in the adsorbent bed group.

[0010] Preferably, the trigger structure includes an air intake groove, a sliding rod, a plug, a trigger block, a connecting groove, a return spring, and an extrusion plate. An air intake groove is provided in one end of each cylinder connected to the branch pipe, and each air intake groove corresponds to a positive flushing pipe. A sliding rod is slidably connected in each cylinder, and one end of each sliding rod is located in the corresponding branch pipe and is connected to a plug for blocking the backwashing pipe, and the other end of each sliding rod is located in the corresponding auxiliary box and is connected to a trigger block. A connecting groove is provided in each cylinder, and a return spring is connected in each connecting groove, and each return spring end is nested and connected to the corresponding sliding rod, and an extrusion plate is connected to the pushing structure.

[0011] Preferably, the automatic exhaust structure includes an exhaust pipe opening, a baffle plug, a sliding sleeve, a limit rod, and a pressure spring. Each of the auxiliary boxes is provided with an exhaust pipe opening on the outer wall away from the diversion pipe on the side for discharging miscellaneous gases, and each exhaust pipe opening is sealed with a baffle plug, and each baffle plug is connected to the side with several sliding sleeves at equal angles, each of the sliding sleeves is slidably connected to a limit rod, and each limit rod end is fixedly connected to the auxiliary box, and a pressure spring for connecting the limit rod and the sliding sleeve is nested outside each limit rod.

[0012] Preferably, the pushing structure includes a servo motor, a full gear, a rack plate, and a push plate. A servo motor for driving is installed on the outer wall of the diversion tube, and the output end of the servo motor is connected to the full gear through a rotating shaft through the inner wall of the diversion tube, and the side of the full gear is meshed with a rack plate. A push plate is connected to both ends of the rack plate, and the sides of the push plate are in contact with the inner wall of the diversion tube. The push plate is located on both sides of the inner end face of the first filter box or the second filter box, and an extrusion plate is connected to each other, and the inclined surface of the extrusion plate is in contact with the inclined surface of the trigger block, and the corners of the end face of the push plate away from the extrusion plate are provided with fixed rods in contact with the inner wall of the diversion tube.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the hydrogen purification device for graded impurity removal, through the arrangement of the diverter pipe, the first filter box, the second filter box, the branch pipe, the adsorbent bed group and the forward-flushing nozzle, enables the device to divert the mixed gas into multiple streams for more detailed purification and filtration, and through the inclined arrangement of the forward-flushing nozzle, the contact surface between the adsorbent bed group and the mixed gas is continuously inclined and cleaned, so that the impurities attached thereon and other adsorbed gases converge to the other side, so that the adsorbent bed group in this area can always maintain a relatively good filtration effect, avoiding the adsorption saturation of the adsorbent bed group affecting the subsequent filtration and purification of the mixed gas, and no manual operation is required, saving time and effort.

[0014] Through the arrangement of the backwash nozzle, auxiliary box, cylinder, trigger structure, backwash pipe, automatic exhaust structure and pushing structure, the PLC board sends instructions to control the servo motor to start, and controls the two push plates to seal the first filter box and the second filter box in turn, and at the same time triggers the trigger structure in the unblocked filter box, so that the block is released from the blockage of the backwash pipe, and the adsorbent bed group in the blocked filter box is backwashed through the backwash pipe and the backwash nozzle, so that the impurities and gases in the adsorbent bed group that are not easily cleaned by the forward nozzle are gathered in the middle position of the blocked filter box, and the servo motor of the pushing structure is started again and reversed, and the blocking conditions of the two filter boxes are swapped. During the movement of the push plate, the impurity gas that was previously blocked and backwashed is pushed to the automatic exhaust structure, thereby discharging the device to avoid blockage caused by impurities and miscellaneous gases during long-term use, resulting in poor filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the front cross-sectional structure of the extrusion plate of the present invention when it is close to the trigger block;

[0017] Figure 3 It is a schematic diagram of the front view structure of the present invention;

[0018] Figure 4 For the present invention Figure 2 A in the middle is an enlarged structural diagram;

[0019] Figure 5 For the present invention Figure 2 Enlarged structural diagram at point B in the middle.

[0020] In the figure: 1. main pipeline; 2. diverter pipe; 3. first filter box; 4. second filter box; 5. branch pipe; 6. adsorbent bed group; 7. forward nozzle; 8. backflush nozzle; 9. auxiliary box; 10. cylinder; 11. trigger structure; 1101. air inlet groove; 1102. slide rod; 1103. plug; 1104. trigger block; 1105. connecting groove; 1106. reset spring; 1107. extrusion plate; 12. forward flush pipe; 13. backflush pipe; 14. automatic exhaust structure; 1401. exhaust pipe outlet; 1402. baffle plug; 1403. sliding sleeve; 1404. limit rod; 1405. pressure spring; 15. pushing structure; 1501. servo motor; 1502. full gear; 1503. rack plate; 1504. push plate. Implementation Method

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-5The present invention provides a technical solution: a hydrogen purification device with diversion, impurity removal and anti-blocking, including a main pipeline 1, a diversion pipe 2, a first filter box 3, a second filter box 4, a branch pipe 5, an adsorbent bed group 6, a forward flushing nozzle 7, a back flushing nozzle 8, an auxiliary box 9, a cylinder 10, a trigger structure 11, an air inlet groove 1101, a slide rod 1102, a block 1103, a trigger block 1104, a connecting groove 1105, a return spring 1106, an extrusion plate 1107, a forward flushing pipe 12, a back flushing pipe 13, an automatic exhaust structure 14, and an exhaust pipe port 140 1. Baffle plug 1402, sliding sleeve 1403, limiting rod 1404, pressure spring 1405, pushing structure 15, servo motor 1501, full gear 1502, rack plate 1503, pushing plate 1504. The end of the main pipeline 1 is connected to a diversion pipe 2 for diverting the gas, and the two ends of the diversion pipe 2 are respectively connected to the first filter box 3 and the second filter box 4. The two ends of the first filter box 3 and the two ends of the second filter box 4 are each connected to a branch pipe 5 for transporting the hydrogen after impurities are removed. The two ends of the first filter box 3 and the inside of the second filter box 4 are connected to the branch pipe 5 for transporting the hydrogen after impurities are removed. A group of adsorbent bed groups 6 are provided at each end, and a forward flushing nozzle 7 and a back flushing nozzle 8 are provided on both sides of each adsorbent bed group 6, and the forward flushing nozzle 7 is provided on the side close to the shunt pipe 2. The first filter box 3 and the second filter box 4 are each provided with an auxiliary box 9 on the side away from the shunt pipe 2, and each auxiliary box 9 is connected to a cylinder 10 on both sides of the corresponding branch pipe 5, and a group of trigger structures 11 are provided in each cylinder 10, and a forward flushing pipe is provided between the first filter box 3 and the second filter box 4 on both sides close to the shunt pipe 2 and the corresponding cylinder 10. 12, and a backwash pipe 13 is connected between the two sides of the other side of the first filter box 3 and the branch pipes 5 at both ends of the second filter box 4, and a backwash pipe 13 is also connected between the two sides of the other side of the second filter box 4 and the branch pipes 5 at both ends of the first filter box 3. Each auxiliary box 9 is equipped with an automatic exhaust structure 14 on the side away from the diversion pipe 2, and a pushing structure 15 for pushing the impurities is installed in the main pipeline 1. The output ends of the forward flushing pipe 12 and the backwashing pipe 13 are connected to the forward flushing nozzle 7 and the backwashing nozzle 8 on the first filter box 3 and the second filter box 4 one by one.

[0023] The adsorbent bed group 6 is configured to be composed of multiple layers, and each layer is composed of activated carbon porous solid material. The outer walls of the first filter box 3 and the second filter box 4 are both provided with sealed doors for replacing the adsorbent bed group 6 .

[0024] The nozzle opening of the forward nozzle 7 is toward the surface of the adsorbent bed group 6 close to the diverter tube 2, and the nozzle opening of the backflush nozzle 8 is toward the surface of the adsorbent bed group 6 away from the diverter tube 2. The forward nozzle 7 and the backflush nozzle 8 are set corresponding to the number of beds in the adsorbent bed group 6.

[0025] The trigger structure 11 includes an air intake groove 1101, a sliding rod 1102, a plug 1103, a trigger block 1104, a connecting groove 1105, a return spring 1106, and an extrusion plate 1107. An air intake groove 1101 is provided in one end of each cylinder 10 connected to the branch pipe 5, and each air intake groove 1101 corresponds to the forward flushing pipe 12. A sliding rod 1102 is slidably connected in each cylinder 10, and one end of each sliding rod 1102 is located in the corresponding branch pipe 5 and is connected to a plug 1103 for blocking the backwashing pipe 13, and the other end of each sliding rod 1102 is located in the corresponding auxiliary box 9 and is connected to the trigger block 1104. A connecting groove 1105 is provided in each cylinder 10, and each connecting groove 1105 is connected to a return spring 1106, and the end of each return spring 1106 is nested and connected to the corresponding sliding rod 1102, and an extrusion plate 1107 is connected to the pushing structure 15.

[0026] The automatic exhaust structure 14 includes an exhaust pipe opening 1401, a baffle plug 1402, a sleeve 1403, a limit rod 1404, and a pressure spring 1405. Each auxiliary box 9 is provided with an exhaust pipe opening 1401 on the outer wall of the side away from the diversion pipe 2 for discharging miscellaneous gas, and each exhaust pipe opening 1401 is sealed and clamped with a baffle plug 1402, and each baffle plug 1402 is connected to the side at equal angles with a number of sleeves 1403, each sleeve 1403 is slidably connected with a limit rod 1404, and each end of the limit rod 1404 is fixedly connected to the auxiliary box 9, and each limit rod 1404 is nested with a pressure spring 1405 for connecting the limit rod 1404 and the sleeve 1403.

[0027] The pushing structure 15 includes a servo motor 1501, a full gear 1502, a rack plate 1503, and a push plate 1504. The outer wall of the diverter pipe 2 is installed with a servo motor 1501 for driving, and the output end of the servo motor 1501 is connected to the full gear 1502 through a rotating shaft through the inner wall of the diverter pipe 2, and the rack plate 1503 is meshed with the side of the full gear 1502. A push plate 1504 is connected to both ends of the rack plate 1503, and the sides of the push plate 1504 are in contact with the inner wall of the diverter pipe 2. The push plate 1504 is located on both sides of the inner end face of the first filter box 3 or the second filter box 4, and is connected to an extrusion plate 1107. The inclined surface of the extrusion plate 1107 is in contact with the inclined surface of the trigger block 1104, and the corners of the end face of the push plate 1504 away from the extrusion plate 1107 are provided with fixed rods in contact with the inner wall of the diverter pipe 2.

[0028] Working principle: According to Figure 1As shown, first, the mixed gas pipeline is connected to the main pipeline 1. When the hydrogen extraction operation is performed, the hydrogen is diverted through the diverter pipe 2 to the first filter box 3 and the second filter box 4. The impurities other than hydrogen in the mixed gas are filtered and adsorbed layer by layer through the adsorbent bed group 6. The purified hydrogen flows out through the branch pipe 5 and enters the next process. At the same time, the hydrogen entering the branch pipe 5 is diverted and flows into the air inlet groove 1101 in the cylinder 10, and flows to the positive flushing nozzle 7 through the positive flushing pipe 12. Due to the tilt angle setting of the positive flushing nozzle 7, this hydrogen can continuously clean and flush the contact surface between the adsorbent bed group 6 and the mixed gas, so that other gases and impurities adsorbed and filtered on the surface of the adsorbent bed group 6 will be blown to one side, so that the adsorption material in the adsorbent bed group 6 is desaturated and restored to the optimal filtering state, so that the mixed gas passing through the adsorbent bed group 6 can always provide the best filtering effect, thereby achieving the effect of continuously positively flushing the adsorbent bed group 6 along the flow direction of the mixed gas.

[0029] The servo motor 1501 is connected through a PLC board and a time relay and other devices, so that the purpose of timing control of the servo motor 1501 for forward and reverse rotation can be achieved. When the preset time is reached, the servo motor 1501 is started to drive the full gear 1502 to rotate forward, so that the rack plate 1503 pushes the extrusion plate 1107 on the push plate 1504 in the first filter box 3 to move into the auxiliary box 9, thereby squeezing the trigger block 1104 to move toward the middle of the auxiliary box 9, pulling the slide bar 1102 to drive the block 1103 to disengage the blockage of the backwash pipe 13 on the corresponding branch pipe 5, so that the hydrogen in the branch pipes 5 at both ends of the first filter box 3 flows from the backwash pipe 13 to the backwash nozzle 8 on the second filter box 4;

[0030] As the push plate 1504 in the first filter box 3 moves toward the auxiliary box 9, at the same time, the rack plate 1503 pulls the push plate 1504 in the second filter box 4 to move into the diverter pipe 2, thereby blocking the second filter box 4 to prevent the mixed gas from continuing to enter and affecting the subsequent backwashing operation. Subsequently, hydrogen is flushed on the back surface of the adsorbent bed group 6 in the second filter box 4 through the backwash nozzle 8 in the second filter box 4, so that the gas and impurities on the surface of the adsorbent bed group 6 that are not easily cleaned by the forward flushing nozzle 7 are blown out and gathered in the middle area of ​​the second filter box 4;

[0031] At this time, the PLC board sends a command to control the servo motor 1501 to reverse, and the full gear 1502 rotates to drive the rack plate 1503 to move, so that the push plate 1504 in the first filter box 3 moves into the shunt pipe 2, and the squeezing plate 1107 on the push plate 1504 disengages from squeezing the trigger block 1104, and the reset spring 1106 drives the slide bar 1102 to reset and move, so that the plug 1103 on the end of the slide bar 1102 blocks the backwash pipe 13 again, and at this time, the push plate 1504 in the second filter box 4 that has previously moved into the shunt pipe 2 moves into the second filter box 4 and the auxiliary box 9, pushing the miscellaneous gas gathered in the middle area of ​​the second filter box 4 by backwashing into the auxiliary box 9, squeezing the baffle plug 1402 is disengaged from the blocking engagement with the exhaust pipe outlet 1401, and the sliding sleeve 1403 moves upward on the limit rod 1404, and the pressure spring 1405 is compressed, so that the miscellaneous gas discharge device under backwashing cleaning is discharged. As the miscellaneous gas is discharged, the pressure spring 1405 is disengaged, pushing the baffle plug 1402 to re-block the exhaust pipe outlet 1401 and reset. At the same time, the extrusion plate 1107 on the push plate 1504 squeezes and triggers the trigger block 1104 in the auxiliary box 9, so that the backwash pipe 13 on the branch pipes 5 at both ends of the second filter box 4 is disengaged. As described above, the first filter box 3 that is currently blocked by the push plate 1504 is backwashed, and then the servo motor 1501 is started again to drive the two push plates 1504 to reset to the position as shown in the figure. Figure 1 In the initial state shown in FIG, the mixed gas can continue to enter the first filter box 3 and the second filter box 4 for purification and filtration. This is the working principle of the hydrogen purification device with graded impurity removal.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A hydrogen purification device with diversion, impurity removal and anti-blocking, comprising a main pipeline (1), characterized in that: The end of the main pipeline (1) is connected to a diversion pipe (2) for diverting the gas, and the two ends of the diversion pipe (2) are respectively connected to a first filter box (3) and a second filter box (4), and the two ends of the first filter box (3) and the two ends of the second filter box (4) are each connected to a branch pipe (5) for transporting the hydrogen after impurities are removed; A group of adsorbent bed groups (6) are respectively provided at both ends of the interior of the first filter box (3) and the interior of the second filter box (4), and a forward flushing nozzle (7) and a back flushing nozzle (8) are respectively provided on both sides of each group of adsorbent bed groups (6), and the forward flushing nozzle (7) is provided on the side close to the shunt pipe (2). An auxiliary box (9) is respectively provided on the side of the first filter box (3) and the second filter box (4) away from the shunt pipe (2), and a cylinder (10) is respectively connected between the two sides of each auxiliary box (9) and the corresponding branch pipe (5), and a group of trigger structures (11) is provided in each cylinder (10); A forward flushing pipe (12) is provided between the two sides of one side of the first filter box (3) and the second filter box (4) close to the diversion pipe (2) and the corresponding cylinder (10), and a backwashing pipe (13) is connected between the two sides of the other side of the first filter box (3) and the branch pipes (5) at both ends of the second filter box (4), and a backwashing pipe (13) is also connected between the two sides of the other side of the second filter box (4) and the branch pipes (5) at both ends of the first filter box (3); Each auxiliary box (9) is equipped with an automatic exhaust structure (14) on the side away from the shunt pipe (2), and a pushing structure (15) for pushing the impurity gas is installed in the main pipe (1). The output ends of the forward flushing pipe (12) and the back flushing pipe (13) are connected to the forward flushing nozzle (7) and the back flushing nozzle (8) on the first filter box (3) and the second filter box (4) in a one-to-one correspondence. The trigger structure (11) comprises an air inlet groove (1101), a slide bar (1102), a plug (1103), a trigger block (1104), a connecting groove (1105), a return spring (1106), and an extrusion plate (1107). An air inlet groove (1101) is provided in one end of each cylinder (10) connected to the branch pipe (5), and each air inlet groove (1101) is correspondingly connected to the positive flushing pipe (12). A slide bar (1102) is engaged and slidably connected in each cylinder (10), and one end of each slide bar (1102) is located at A plug (1103) for blocking the backwash pipe (13) is connected to the corresponding branch pipe (5), and the other end of each slide rod (1102) is located in the corresponding auxiliary box (9) and is connected to a trigger block (1104). A connecting groove (1105) is provided in each of the cylinders (10), and a return spring (1106) is connected to each connecting groove (1105), and the end of each return spring (1106) is nested and connected to the corresponding slide rod (1102). The pushing structure (15) is connected to an extrusion plate (1107).

2. A hydrogen purification device with diversion, impurity removal and anti-blocking according to claim 1, characterized in that: The adsorbent bed group (6) is configured to be composed of multiple layers stacked together, and each layer is composed of a porous solid material of activated carbon. The outer walls of the first filter box (3) and the second filter box (4) are both provided with a sealed door for replacing the adsorbent bed group (6).

3. The hydrogen purification device with diversion, impurity removal and anti-blocking according to claim 1, characterized in that: The nozzle opening of the forward nozzle (7) faces the surface of the adsorbent bed group (6) close to the diverter tube (2), and the nozzle opening of the backwash nozzle (8) faces the surface of the adsorbent bed group (6) away from the diverter tube (2). The forward nozzle (7) and the backwash nozzle (8) are arranged correspondingly with respect to the number of beds of the adsorbent bed group (6).

4. The hydrogen purification device with diversion, impurity removal and anti-blocking according to claim 1, characterized in that: The automatic exhaust structure (14) comprises an exhaust pipe opening (1401), a baffle plug (1402), a sliding sleeve (1403), a limiting rod (1404), and a pressure spring (1405). Each auxiliary box (9) is provided with an exhaust pipe opening (1401) on the outer wall of the side away from the diversion pipe (2) for exhausting impurities, and each exhaust pipe opening (1401) is sealed with a baffle plug (1402), and the side of each baffle plug (1402) is connected to a plurality of sliding sleeves (1403) at equal angles, and a limiting rod (1404) is slidably connected in each sliding sleeve (1403), and the end of each limiting rod (1404) is fixedly connected to the auxiliary box (9), and a pressure spring (1405) for connecting the limiting rod (1404) and the sliding sleeve (1403) is nested outside each limiting rod (1404).

5. The hydrogen purification device with diversion, impurity removal and anti-blocking according to claim 1, characterized in that: The pushing structure (15) comprises a servo motor (1501), a full gear (1502), a rack plate (1503), and a push plate (1504). The outer wall of the diverter tube (2) is provided with a servo motor (1501) for driving, and the output end of the servo motor (1501) is connected to the full gear (1502) through the inner wall of the diverter tube (2) via a rotating shaft, and the side of the full gear (1502) is meshed with a rack plate (1503), and both ends of the rack plate (1503) are connected to the rack plate (1503). There is a push plate (1504), and the side of the push plate (1504) is in contact with the inner wall of the shunt pipe (2). The push plate (1504) is located on both sides of the inner end surface of the first filter box (3) or the second filter box (4), and is connected to an extrusion plate (1107). The inclined surface of the extrusion plate (1107) is in contact with the inclined surface of the trigger block (1104), and the corners of the end surface of the push plate (1504) away from the extrusion plate (1107) are provided with fixed rods in contact with the inner wall of the shunt pipe (2).

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