High-capacity ammonia gas decomposition hydrogen production purification equipment

Abstract

The invention discloses a large-air-volume ammonia gas decomposition hydrogen production purification device, and relates to the technical field of ammonia gas hydrogen production. Through the arrangement of an auxiliary sealing replacement mechanism, when a large amount of ammonia gas is subjected to hydrogen production purification, power is generated through circulation of airflow to blow a fan to rotate, then rotation of the fan is converted into centrifugal force, an arc-shaped sliding block is pushed to abut against a through hole, and therefore when hydrogen production purification work is carried out, the connection stability of a drawing plate and a purification device is guaranteed; furthermore, under the action of a sealing rubber ring arranged on the periphery of the drawing plate, the sealing performance and the stability of the auxiliary connection are guaranteed during the purification operation of hydrogen production through large-air-volume ammonia gas decomposition, and the situation that poisonous gas in decomposed gas leaks and hurts workers is avoided; and due to the implementation of the structure, further fastening is achieved under the flowing of the air flow, and the situation of loosening is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen production from ammonia, and in particular to a large-volume ammonia decomposition hydrogen production and purification device. Background Art

[0002] Large-volume ammonia decomposition hydrogen production and purification equipment is a complex system that can process large amounts of ammonia and convert it into high-purity hydrogen. With the continuous expansion of hydrogen energy applications, the demand for hydrogen is increasing. Large-volume ammonia decomposition hydrogen production and purification equipment has attracted much attention because of its ability to produce hydrogen efficiently and on a large scale. It consists of an ammonia feeding system and a decomposition device. The ammonia feeding system ensures that ammonia can enter the reaction device stably and evenly, and then the decomposition device is equipped with high-performance heating elements and high-quality catalysts. Under specific temperature and pressure conditions, ammonia is fully decomposed into nitrogen and hydrogen, providing high-purity hydrogen for various industrial applications requiring hydrogen.

[0003] In the prior art, when a large amount of ammonia is decomposed to produce hydrogen, the ammonia decomposition products enter the purification device, the gas contacts the adsorbent bed, and the impurity molecules begin to be adsorbed. After the adsorption bed is saturated with adsorption, it needs to be activated, regenerated or replaced to ensure that the impurities in the decomposition products are effectively removed, thereby obtaining a high-purity target gas. The purification of the decomposition products and the activation of the adsorption bed are handled separately, which increases the operation steps and time, resulting in a decrease in the efficiency of the entire hydrogen production process. In addition, two different treatment processes are performed separately, requiring additional equipment, energy and manpower investment, increasing production costs. Separate treatment makes the control of product quality more complicated. Different variables and uncertainties are easily introduced at different processing stages, increasing the difficulty of ensuring the stability of hydrogen purity. The adsorbent is exposed to the external environment during activation and transportation to the purification link, increasing the risk of contamination, thereby affecting its adsorption performance and the purity of hydrogen. Further, separate treatment makes the entire process more complicated, increases the difficulty of operation and management, and requires higher skills of operators.

[0004] Therefore, a large amount of ammonia decomposition hydrogen production and purification equipment is proposed to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a large-volume ammonia decomposition hydrogen production and purification device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: A large amount of ammonia decomposition hydrogen production purification equipment, comprising: a purification device, the upper end of the purification device is connected to a decomposition gas delivery device, the inner wall of the purification device is fixedly connected to a conduit, the conduit is connected to an external activation liquid delivery device, an adsorbent activation mechanism is arranged in the purification device, the adsorbent activation mechanism includes a material box, an adsorbent bed is arranged in the material box, and an auxiliary seal replacement mechanism is arranged above the adsorbent activation mechanism; The adsorbent activation mechanism is used to rotate and change the position where the adsorbent bed in the material box contacts the conduit, thereby activating the adsorbent beds in the multiple material boxes; The auxiliary seal replacement mechanism is used to replace the auxiliary adsorbent bed when it cannot be effectively regenerated or its performance decreases to a certain extent, and to ensure the sealing performance in the purification device during decomposition and purification.

[0007] Preferably, the adsorbent activation mechanism also includes an auxiliary box, a screen is fixedly connected to the bottom of the auxiliary box, a T-shaped ring groove is provided in the inner ring of the auxiliary box, a circular tube is rotatably connected to the middle of the auxiliary box, eight dial plates are fixedly connected to the outer ring of the circular tube, the material box is placed between two synchronous disks, both sides of the material box close to the inner wall of the auxiliary box are fixedly connected to T-shaped sliders, the T-shaped sliders are slidably connected in the T-shaped ring groove, eight V-shaped grooves are provided around the inner ring of the circular tube, and the V-shaped grooves are connected, an electric telescopic rod is fixedly connected to the middle of the auxiliary box, the electric telescopic rod is arranged in the middle of the circular tube, an end of the electric telescopic rod away from the auxiliary box is fixedly connected to an auxiliary column, an inner cavity is provided in the auxiliary column, a movable spring is fixedly connected to the inner cavity of the auxiliary column, and one end of the movable spring away from the auxiliary column is fixedly connected to the bottom of the auxiliary box, and eight movable buttons are fixedly connected to the outer ring of the auxiliary column, and the movable buttons are slidably connected in the V-shaped groove.

[0008] Preferably, the auxiliary seal replacement mechanism includes a pull-out plate, which is clamped on the auxiliary box, and the T-shaped ring groove is opened on the inner wall of the pull-out plate. A plug hole is opened in the middle of the upper end of the pull-out plate, and two T-shaped tubes are symmetrically fixedly connected to the center of the purification device. A fan is rotatably connected in the T-shaped tube, and one of the fans is fixedly connected to a synchronous disk at one end away from the center of the purification device. The synchronous disk rotates in the T-shaped tube, and an inner cavity is opened in the synchronous disk, and four U-shaped grooves are fixedly connected around the center of the circle in the inner cavity of the synchronous disk.

[0009] Preferably, the auxiliary seal replacement mechanism also includes an auxiliary spring, which is slidably connected in the U-shaped groove body, and the end of the auxiliary spring away from the U-shaped groove body is fixedly connected to an arc-shaped slider, a through hole is opened under the T-shaped tube, and a latch column is slidably connected in the through hole, and a column cavity is fixedly connected in the purification device under the T-shaped tube, and the latch column is slidably connected in the column cavity, and positioning columns are fixedly connected on both sides of the latch column, and reset springs are fixedly connected to the positioning columns on both sides of the latch column, and the end of the reset spring away from the latch column extends downward and is fixedly connected to the reset spring.

[0010] Preferably, the auxiliary box is clamped in the middle of the catheter, the material box is slidably connected in the auxiliary box, a plurality of sieve holes are opened at the bottom of the material box, eight of which are arranged, the material box is fitted with the catheter, and the electric telescopic rod is electrically connected to an external controller.

[0011] Preferably, rubber sealing strips are arranged around the pull-out plate, the plug-in hole is slidably matched with the plug-in pin, and the synchronization disk is located directly above the vertical position of the plug-in hole.

[0012] Preferably, the arc-shaped slider consists of a slider and an arc-shaped plate, and the arc-shaped plate in the arc-shaped slider is in conflict with the through hole.

[0013] Compared with the prior art, the present invention provides a large-volume ammonia decomposition hydrogen production and purification device, which has the following beneficial effects: 1. Through the setting of the adsorbent activation mechanism, when ammonia is decomposed to produce hydrogen and purify, the adsorbent bed is divided into multiple parts, and then the adsorbents installed in the material box are cleaned and activated one by one while producing and purifying hydrogen. When one of the adsorbent beds is being activated, the other parts are still working normally for purification, ensuring that the entire system continuously and stably outputs high-purity hydrogen, and can achieve uninterrupted purification process. Moreover, by activating the material boxes one by one, the adsorption capacity of the adsorbent can be restored in time, so that it always maintains a good adsorption effect, thereby improving the efficiency and quality of purification, and further preventing the adsorption capacity of the adsorbent from decreasing after a period of use, thereby avoiding the situation where the hydrogen purity decreases due to its adsorption saturation, effectively reducing the hydrogen purity fluctuation caused by the saturation of the adsorbent, and ensuring that the output hydrogen always maintains a high-purity stable state.

[0014] 2. Through the setting of the auxiliary sealing replacement mechanism, when a large amount of ammonia is purified to produce hydrogen, the circulation of the airflow generates power to blow the fan to rotate, and then converts the rotation of the fan into centrifugal force, pushing the arc-shaped slider to collide with the through hole, so as to ensure the connection stability between the pull-out plate and the purification device during the hydrogen production and purification work, and further under the action of the sealing rubber ring arranged around the pull-out plate, the sealing and stability of the auxiliary connection are ensured during the large amount of ammonia decomposition and hydrogen production purification operation, avoiding the leakage of toxic gases in the decomposed gas and causing harm to the staff. Compared with the prior art that is only fixed by screws or clamping parts, it is easy to loosen under the action of airflow. The implementation of this structure is further tightened under the flow of airflow to avoid loosening.

[0015] 3. Furthermore, when the adsorption layer in the material box fails and needs to be replaced, the local adsorption layer is replaced when the material box is divided into multiple parts. Only the failed part is replaced instead of the entire adsorption device, which reduces material waste and maintenance costs. The failed adsorption layer is replaced in time, and other adsorption layers that work normally can continue to perform at their best, thereby improving the overall utilization rate of the equipment, allowing the non-failed parts to continue to play a role, making full use of their residual value, improving resource utilization efficiency, and reducing the large amount of waste adsorption materials generated by overall replacement. In addition, the replacement range is reduced, the operation is relatively simple, and the time required is greatly shortened, reducing equipment downtime for maintenance. Furthermore, the replacement area and frequency can be flexibly adjusted according to different working conditions and adsorption requirements to better adapt to changes in production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is an internal structural diagram of the purification device of the present invention; Figure 3 This is a structural diagram of the local adsorbent activation mechanism of the present invention; Figure 4 This is a disassembled structural diagram of the adsorbent activation mechanism of the present invention; Figure 5 This is a structural diagram of the local auxiliary seal replacement mechanism of the present invention; Figure 6 This is a disassembled structural diagram of the auxiliary seal replacement mechanism of the present invention; Figure 7 For the present invention Figure 4 The enlarged structural diagram at A in the middle; Figure 8 For the present invention Figure 6 The structure diagram at B is enlarged; Fig. 9 For the present invention Figure 6 Enlarged structural diagram at center C.

[0017] In the figure: 11. Purification device; 12. Catheter; 2. Adsorbent activation mechanism; 21. Auxiliary box; 22. Screen; 23. T-shaped ring groove; 24. Round tube; 25. Dial plate; 26. Material box; 27. T-shaped slider; 28. V-shaped groove; 29. ​​Electric telescopic rod; 210. Movable spring; 211. Auxiliary column; 212. Movable button; 3. Auxiliary seal replacement mechanism; 31. Pull-out plate; 32. Plug-in hole; 33. T-tube; 34. Fan; 35. Synchronous disk; 36. U-shaped groove; 37. Auxiliary spring; 38. Arc-shaped slider; 39. Through hole; 310. Column cavity; 311. Latch column; 312. Reset spring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0019] The present invention is further described in detail below based on the accompanying drawings and embodiments. Example

[0020] Please refer to Figures 1 to 4 As shown: In order to solve the problems mentioned in the technical solution, the embodiment of the present application provides a large amount of ammonia decomposition hydrogen production purification equipment, including: a purification device 11, the upper end of the purification device 11 is connected to a decomposition gas delivery device, the inner wall of the purification device 11 is fixedly connected to a conduit 12, the conduit 12 is connected to an external activation liquid delivery device, the purification device 11 is provided with an adsorbent activation mechanism 2, the adsorbent activation mechanism 2 includes a material box 26, the material box 26 is provided with an adsorbent bed layer, and an auxiliary seal replacement mechanism 3 is provided above the adsorbent activation mechanism 2; The adsorbent activation mechanism 2 is used to rotate and change the position of the adsorbent bed in the material box 26 in contact with the conduit 12, thereby activating the adsorbent beds in multiple material boxes 26. The adsorbent activation mechanism 2 also includes an auxiliary box 21, which is clamped in the middle of the conduit 12. A screen 22 is fixedly connected to the bottom of the auxiliary box 21. A T-shaped ring groove 23 is provided on the inner ring of the auxiliary box 21. A circular tube 24 is rotatably connected to the middle of the auxiliary box 21. Eight paddles 25 are fixedly connected to the outer ring of the circular tube 24. The material box 26 is placed between two synchronous disks 35. An adsorption performance monitoring device is provided in the material box 26. The material box 26 is slidably connected in the auxiliary box 21. A plurality of sieve holes are provided at the bottom of the material box 26. The material box 26 is provided with eight sieve holes. The material box 26 fits the conduit 12. Both sides of the material box 26 close to the inner wall of the auxiliary box 21 are fixedly connected with T-shaped sliders 2 7. The T-shaped slider 27 is slidably connected in the T-shaped ring groove 23. Eight V-shaped grooves 28 are opened around the inner circle of the circular tube 24. The V-shaped grooves 28 are connected. An electric telescopic rod 29 is fixedly connected to the middle of the auxiliary box 21. The electric telescopic rod 29 is mainly used to telescopically drive the auxiliary column 211 to move in the vertical direction and then drive the circular tube 24 to rotate. The electric telescopic rod 29 is arranged in the middle of the circular tube 24. The electric telescopic rod 29 is electrically connected to an external controller. The end of the electric telescopic rod 29 away from the auxiliary box 21 is fixedly connected to the auxiliary column 211. The auxiliary column 211 has an inner cavity. The inner cavity of the auxiliary column 211 is fixedly connected to a movable spring 210. The end of the movable spring 210 away from the auxiliary column 211 is fixedly connected to the bottom of the auxiliary box 21. The outer circle of the auxiliary column 211 is fixedly connected to eight movable buttons 212. The movable buttons 212 are slidably connected in the V-shaped groove 28.

[0021] For further examples, please refer to Figures 5 to 9 As shown: The auxiliary seal replacement mechanism 3 is used to replace the auxiliary adsorbent bed when it cannot be effectively regenerated or its performance has dropped to a certain extent, and to ensure the sealing of the purification device 11 during decomposition and purification. The auxiliary seal replacement mechanism 3 includes a pull-out plate 31, and a rubber sealing strip is arranged around the pull-out plate 31. The pull-out plate 31 is clamped on the auxiliary box 21. The T-shaped ring groove 23 is opened on the inner wall of the pull-out plate 31. The middle part of the upper end of the pull-out plate 31 is provided with a plug hole 32, and the plug hole 32 is slidably adapted to the plug pin column 311. Two T-shaped tubes 33 are fixedly connected to the center of the purification device 11 symmetrically. A fan 34 is rotatably connected in the T-tube 33. The fan 34 is mainly driven by the airflow generated by the decomposition product of ammonia. A synchronous disk 35 is fixedly connected to one end of one fan 34 away from the center of the purification device 11. The synchronous disk 35 is mainly used to synchronously rotate under the rotation of the fan 34 to generate centrifugal force to push the arc-shaped slider 38 to move toward the outer circle. The synchronous disk 35 is located directly above the vertical position of the plug hole 32. The synchronous disk 35 rotates in the T-tube 33. An inner cavity is opened in the synchronous disk 35. Four U-shaped grooves 36 are fixedly connected around the center of the inner cavity of the synchronous disk 35. The auxiliary seal replacement mechanism 3 also includes an auxiliary spring 37, which is slidably connected in the U-shaped groove 36. The end of the auxiliary spring 37 away from the U-shaped groove 36 is fixedly connected with an arc-shaped slider 38, which is composed of a slider and an arc plate. A through hole 39 is opened below the T-shaped tube 33, and a latch column 311 is slidably connected in the through hole 39. The latch column 311 mainly pushes the auxiliary pull-out plate 31 and the plug-in hole 32 downward when the arc-shaped slider 38 moves by centrifugal force. The connection stability of the purification device 11, the arc plate in the arc slider 38 conflicts with the through hole 39, the purification device 11 below the T-tube 33 is fixedly connected with a column cavity 310, the latch column 311 is slidably connected in the column cavity 310, and the two sides of the latch column 311 are fixedly connected with positioning columns, and the positioning columns on both sides of the latch column 311 are fixedly connected with a return spring 312, and the end of the return spring 312 away from the latch column 311 extends downward and is fixedly connected to the return spring 312; Everything in the above example works like this: The following is the working process of the adsorbent activation mechanism 2 for rotating and changing the contact position between the adsorbent bed layer in the material box 26 and the conduit 12 to activate the adsorbent bed layers in the multiple material boxes 26: When in use, the ammonia decomposition product is transmitted to the inner cavity of the purification device 11 through the decomposition gas transmission device connected to the purification device 11, and then the gas circulates in the purification device 11, contacts the adsorbent bed in the material box 26, and the impurity molecules begin to be adsorbed and interact with the adsorbent surface. As the gas continues to pass through the adsorbent bed, the impurities gradually diffuse into the adsorbent for deeper adsorption. When the decomposition product circulates, the impurity molecules continuously fill the gaps inside the adsorbent, and the adsorption capacity of the adsorbent is gradually saturated. Under the control of the external controller, the electric telescopic rod 29 contracts, pulling the auxiliary The column 211 moves downward toward the auxiliary box 21. When the auxiliary column 211 moves downward, the movable spring 210 is compressed, and the movable button 212 on the outer ring of the auxiliary column 211 moves downward synchronously with the auxiliary column 211. When moving downward, it moves downward along the oblique groove of the V-shaped groove 28. Since the round tube 24 is rotatably connected to the auxiliary box 21, when the auxiliary column 211 moves downward and slides in the V-shaped groove 28, it pushes the V-shaped groove 28 to move counterclockwise. Then, through the counterclockwise movement of the V-shaped groove 28, the round tube 24 is pushed to rotate counterclockwise in the auxiliary box 21. When the movable button 212 slides to the bottom of the V-shaped groove 28 When the electric telescopic rod 29 is extended, the auxiliary column 211 is pushed upward. At this time, the movable button 212 moves in the oblique upward groove of the V-shaped groove 28, pushing the V-shaped groove 28 to continue to rotate, thereby driving the round tube 24 to rotate. Therefore, under the operation of the electric telescopic rod 29 to extend and retract once, the V-shaped groove 28 and the round tube 24 are pushed to rotate forty-five degrees in the auxiliary box 21. Therefore, under the rotation of the round tube 24, the material box 26 between the two V-shaped grooves 28 on the outer circle of the round tube 24 is pushed to rotate counterclockwise, resulting in displacement, switching different material boxes 26 to be clamped with the guide tube 12, and switching the material box 26 and the guide tube After the catheter 12 is connected, under the action of the activated liquid delivery device connected to the catheter 12, the cleaning liquid flows in from the upper end of the catheter 12 to flush the gradually saturated adsorbent bed inside the material box 26 to clean the adsorption layer. In the next rotation operation, the position of the cleaned material box 26 is changed, and it is rotated out of the catheter 12 to put the activated adsorption layer back into use, and the purified hydrogen flows into another pipeline through the bottom of the purification device 11 and is then discharged for subsequent applications. While producing and purifying hydrogen, the adsorbent treatment work is completed and carried out simultaneously to improve the adsorption efficiency of the adsorbent. By setting the adsorbent activation mechanism 2, when ammonia is decomposed to produce hydrogen and purify, the adsorbent bed is divided into multiple parts, and then the adsorbents installed in the material box 26 are cleaned and activated one by one while producing and purifying hydrogen. When one of the adsorbent beds is being activated, the other parts are still working normally for purification, ensuring that the entire system continuously and stably outputs high-purity hydrogen, and can achieve uninterrupted purification. Moreover, by activating the material boxes 26 one by one, the adsorption capacity of the adsorbent can be restored in time, so that it always maintains a good adsorption effect, thereby improving the efficiency and quality of purification, further preventing the adsorption capacity of the adsorbent from decreasing after a period of use, and thus avoiding the situation where the hydrogen purity decreases due to its adsorption saturation, effectively reducing the hydrogen purity fluctuation caused by the saturation of the adsorbent, and ensuring that the output hydrogen always maintains a high-purity stable state.

[0022] Please refer to the above working process Figures 1 to 4 .

[0023] The following is the working process of the auxiliary seal replacement mechanism 3 for replacing the auxiliary adsorbent bed when the auxiliary adsorbent bed cannot be effectively regenerated or its performance has dropped to a certain level and for ensuring the sealing inside the purification device 11 during decomposition and purification: When in use, when a large amount of ammonia decomposition products are added to the purification device 11, the addition of a large amount of ammonia decomposition products generates airflow, and the circulation of the airflow blows the fan 34 to rotate. Under the rotation of the fan 34, the rotation of the fan 34 drives the synchronous disk 35 fixedly connected to the fan 34 to rotate consistently. When a large amount of ammonia decomposition products push the fan 34 to rotate, the rotation indirectly drives the synchronous disk 35 to generate centrifugal force. At this time, the arc slider 38 slides toward the outer ring of the synchronous disk 35 in the U-shaped groove 36 under the action of centrifugal force, and the auxiliary spring 37 is stretched to push the arc slider 38 to form a displacement. When the arc slider 38 moves toward the outer ring of the synchronous disk 35 for diffusion, it gradually pushes the through hole 39 to move downward, thereby driving the through hole 39 to be inserted into the plug hole 32. At this time, the reset spring 312 is compressed, and the through hole 39 is plugged with the reset spring 312, which assists the connection stability of the pull-out plate 31 and the purification device 11 during hydrogen production and purification; Furthermore, after the hydrogen production and purification work is completed, the fan 34 stops rotating, and then the synchronous disk 35 gradually stops rotating. The centrifugal force is completed, and the auxiliary spring 37, under the action of the restoring force, pulls the arc-shaped slider 38 to shrink toward the center of the synchronous disk 35, and the through hole 39 moves upward to release the connection with the plug hole 32. When the adsorption layer in the material box 26 fails and needs to be replaced, the pull-out plate 31 is pulled out under the clamping action of the material box 26 and the pull-out plate 31 to complete the replacement operation.

[0024] By setting the auxiliary seal replacement mechanism 3, when a large amount of ammonia is purified for hydrogen production, the circulation of the airflow generates power to blow the fan 34 to rotate, and then the fan 34 generates centrifugal force when rotating, pushing the arc-shaped slider 38 to collide with the through hole 39. The magnitude of the centrifugal force will automatically change according to the rotation speed of the fan 34 and the airflow strength of the ammonia decomposition product. When the airflow is strong, the centrifugal force is large, the conflict is tighter, and the sealing effect is better; when the airflow is weak, the centrifugal force is correspondingly reduced, but a certain conflict force can still be maintained to ensure the sealing performance, and the conflict strength is automatically adjusted according to the change of working conditions, so that when performing hydrogen production and purification work, the connection stability between the pull-out plate 31 and the purification device 11 is guaranteed, and further under the action of the sealing rubber ring arranged around the pull-out plate 31, the sealing and stability of the auxiliary connection are guaranteed during the large amount of ammonia decomposition and hydrogen production purification operation, so as to avoid the leakage of toxic gases in the decomposed gas and cause harm to the staff. Compared with the prior art that is only fixed by screws or clamping parts, it is easy to loosen under the action of airflow. The implementation of this structure is further tightened under the flow of airflow to avoid loosening.

[0025] Furthermore, when the adsorption layer in the material box 26 fails and needs to be replaced, the local adsorption layer is replaced when the material box 26 is divided into multiple parts. The material box 26 that needs to be replaced is detected by the adsorption performance monitoring device of the device in each material box 26, so that only the failed part is replaced, rather than the entire adsorption device, thereby reducing material waste and maintenance costs. The failed adsorption layer can be replaced in time, and other adsorption layers that work normally can continue to perform at their best, thereby improving the overall utilization rate of the equipment, allowing the non-failed parts to continue to play a role, making full use of their residual value, improving resource utilization efficiency, and reducing a large amount of waste adsorption materials generated by overall replacement. In addition, the replacement range is reduced, the operation is relatively simple, the time required is greatly shortened, and the equipment downtime maintenance time is reduced. Furthermore, the replacement area and frequency can be flexibly adjusted according to different working conditions and adsorption requirements to better adapt to production changes.

[0026] Please refer to the above working process Figures 5 to 9 .

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large amount of ammonia decomposition hydrogen production and purification equipment, comprising: A purification device (11), wherein the upper end of the purification device (11) is connected to a decomposition gas delivery device, the inner wall of the purification device (11) is fixedly connected to a conduit (12), and the conduit (12) is connected to an external activation liquid delivery device, characterized in that an adsorbent activation mechanism (2) is arranged inside the purification device (11), the adsorbent activation mechanism (2) includes a material box (26), an adsorbent bed is arranged inside the material box (26), and an auxiliary seal replacement mechanism (3) is arranged above the adsorbent activation mechanism (2); The adsorbent activation mechanism (2) is used to rotate and change the position at which the adsorbent bed in the material box (26) contacts the conduit (12), thereby activating the adsorbent beds in the plurality of material boxes (26); The auxiliary seal replacement mechanism (3) is used to assist in replacing the adsorbent bed when it cannot be effectively regenerated or its performance has dropped to a certain level, and to ensure the sealing performance within the purification device (11) during decomposition and purification.

2. The large-volume ammonia decomposition hydrogen production and purification equipment according to claim 1, characterized in that: The adsorbent activation mechanism (2) further comprises an auxiliary box (21), a screen (22) being fixedly connected to the bottom of the auxiliary box (21), a T-shaped annular groove (23) being provided on the inner ring of the auxiliary box (21), a circular tube (24) being rotatably connected to the middle of the auxiliary box (21), eight paddles (25) being fixedly connected to the outer ring of the circular tube (24), the material box (26) being placed between two synchronous disks (35), and T-shaped sliders (27) being fixedly connected to both sides of the material box (26) close to the inner wall of the auxiliary box (21), the T-shaped sliders (27) being slidably connected in the T-shaped annular groove (23), and eight V-shaped grooves (28) being provided around the inner ring of the circular tube (24), the V-shaped The slots (28) are connected to each other, an electric telescopic rod (29) is fixedly connected to the middle of the auxiliary box (21), the electric telescopic rod (29) is arranged in the middle of the circular tube (24), an end of the electric telescopic rod (29) away from the auxiliary box (21) is fixedly connected to an auxiliary column (211), an inner cavity is defined in the auxiliary column (211), a movable spring (210) is fixedly connected to the inner cavity of the auxiliary column (211), an end of the movable spring (210) away from the auxiliary column (211) is fixedly connected to the bottom of the auxiliary box (21), and eight movable buttons (212) are fixedly connected to the outer ring of the auxiliary column (211), and the movable buttons (212) are slidably connected in the V-shaped slot (28).

3. The large-volume ammonia decomposition hydrogen production and purification equipment according to claim 2, characterized in that: The auxiliary seal replacement mechanism (3) comprises a pull-out plate (31), the pull-out plate (31) being snap-connected to the auxiliary box (21), the T-shaped ring groove (23) being formed on the inner wall of the pull-out plate (31), a plug hole (32) being formed in the middle of the upper end of the pull-out plate (31), two T-shaped tubes (33) being fixedly connected symmetrically in the center of the purification device (11), a fan (34) being rotatably connected in the T-shaped tube (33), one end of the fan (34) being fixedly connected to a synchronous disk (35) away from the center of the purification device (11), the synchronous disk (35) being rotatably connected in the T-shaped tube (33), the synchronous disk (35) being rotatably connected in the T-shaped tube (33), the synchronous disk (35) being formed with an inner cavity, and four U-shaped grooves (36) being fixedly connected in the inner cavity of the synchronous disk (35) around the center of the circle.

4. The large-volume ammonia decomposition hydrogen production and purification equipment according to claim 3 is characterized by: The auxiliary seal replacement mechanism (3) further comprises an auxiliary spring (37), wherein the auxiliary spring (37) is slidably connected in the U-shaped groove (36), and an end of the auxiliary spring (37) away from the U-shaped groove (36) is fixedly connected to an arc-shaped slider (38), a through hole (39) is provided below the T-shaped tube (33), and a latch column (311) is slidably connected in the through hole (39), and a column cavity (310) is fixedly connected in the purification device (11) below the T-shaped tube (33), and the latch column (311) is slidably connected in the column cavity (310), and positioning columns are fixedly connected on both sides of the latch column (311), and the positioning columns on both sides of the latch column (311) are fixedly connected to reset springs (312), and an end of the reset spring (312) away from the latch column (311) extends downward and is fixedly connected to the reset spring (312).

5. The large-volume ammonia decomposition hydrogen production and purification equipment according to claim 2, characterized in that: The auxiliary box (21) is clamped in the middle of the conduit (12), the material box (26) is slidably connected in the auxiliary box (21), a plurality of sieve holes are provided at the bottom of the material box (26), eight sieve holes are provided in the material box (26), the material box (26) is fitted with the conduit (12), and the electric telescopic rod (29) is electrically connected to an external controller.

6. The large-volume ammonia decomposition hydrogen production and purification equipment according to claim 3, characterized in that: The pull-out plate (31) is provided with rubber sealing strips around its periphery. The plug-in hole (32) is slidably matched with the latch post (311). The synchronization disk (35) is located directly above the vertical position of the plug-in hole (32).

7. The large-volume ammonia decomposition hydrogen production and purification equipment according to claim 4, characterized in that: The arc-shaped slider (38) is composed of a slider and an arc-shaped plate, and the arc-shaped plate in the arc-shaped slider (38) is in conflict with the through hole (39).

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