An ammonia decomposition and hydrogen purification equipment with a large gas volume

Abstract

The present invention discloses a large-capacity ammonia decomposition hydrogen production purification device, which relates to the technical field of ammonia hydrogen production, and includes: a purification device; through the setting of an auxiliary sealing replacement mechanism, when purifying a large amount of ammonia hydrogen production, the flow of air generates power to blow the fan to rotate, and then the rotation of the fan is converted into centrifugal force to push the arc-shaped slider to contact the through hole, so as to ensure the connection stability between the draw plate and the purification device during the hydrogen production purification work. Further, under the action of the sealing rubber ring arranged around the draw plate, the sealing and stability of the auxiliary connection are ensured during the large-capacity ammonia decomposition 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 in which only screws or clamping parts are used for fixation, it is easy to loosen under the action of air flow. The implementation of this structure is further tightened under the air flow, avoiding the generation of loosening situations.

Description

Technical Field

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

[0002] A large-capacity ammonia decomposition hydrogen production and purification device is a complex system that can process a large amount of ammonia and convert it into high-purity hydrogen. With the continuous expansion of hydrogen energy applications, the demand for hydrogen is increasing day by day. The large-capacity ammonia decomposition hydrogen production and purification device has attracted much attention because it can produce hydrogen efficiently and on a large scale. It consists of an ammonia feeding system and a decomposition device, etc. Through the ammonia feeding system, it ensures that ammonia can enter the reaction device stably and evenly. Then, through the decomposition device 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 that require hydrogen.

[0003] In the prior art, when decomposing a large amount of ammonia to produce hydrogen, the ammonia decomposition products enter the purification device, and the gas contacts the adsorbent bed layer, and the impurity molecules start to be adsorbed. After the adsorption bed layer is saturated, activation regeneration or replacement is required to ensure that the impurities in the decomposition products are effectively removed, so as to obtain the target gas with high purity. However, the purification of the decomposition products and the activation of the adsorption bed layer are treated separately, which increases the operation steps and time, resulting in a decrease in the efficiency of the entire hydrogen production process. Moreover, separately performing two different treatment processes requires additional equipment, energy, and manpower inputs, increasing the production cost. Separately treating makes the control of product quality more complicated. In different treatment stages, it is extremely easy to introduce different variables and uncertainties, increasing the difficulty of ensuring the stability of hydrogen purity. During the activation of the adsorbent and the transportation to the purification link, it will be exposed to the external environment, increasing the risk of being contaminated, thus affecting its adsorption performance and the purity of hydrogen. Further, separately treating makes the entire process flow more complicated, increasing the difficulty of operation and management, and requiring higher skills for operators.

[0004] Therefore, a large-capacity ammonia decomposition hydrogen production and purification device is proposed to solve the above problems. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a large-capacity ammonia decomposition hydrogen production and purification device to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: An atmospheric ammonia decomposition hydrogen production and purification device, comprising: a purification device, a decomposition gas conveying device is connected to the upper end of the purification device, a conduit is fixedly connected to the inner wall of the purification device, the conduit is connected to an external activated liquid conveying 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 sealing and replacement mechanism is arranged above the adsorbent activation mechanism;

[0007] The adsorbent activation mechanism is used to rotate to change the position where the adsorbent bed in the material box contacts the conduit, so as to activate the adsorbent beds in multiple material boxes;

[0008] The auxiliary sealing and replacement mechanism is used to assist in replacing the adsorbent bed when it cannot be effectively regenerated or its performance drops to a certain extent, and to ensure the sealing of the purification device during decomposition and purification.

[0009] Preferably, the adsorbent activation mechanism further includes an auxiliary box, a screen is fixedly connected to the bottom of the auxiliary box, a T-shaped ring groove is formed in the inner circle of the auxiliary box, a round tube is rotatably connected to the middle of the auxiliary box, eight baffle plates are fixedly connected to the outer circle of the round tube, the material box is placed between two synchronous disks, T-shaped sliders are fixedly connected to both sides of the material box close to the inner wall of the auxiliary box, the T-shaped sliders are slidably connected in the T-shaped ring groove, eight V-shaped grooves are formed in a circular pattern in the inner circle of the round tube, the V-shaped grooves are communicated with each other, 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 round tube, one end of the electric telescopic rod away from the auxiliary box is fixedly connected to an auxiliary column, a cavity is formed in the auxiliary column, a movable spring is fixedly connected to the cavity of the auxiliary column, 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 circle of the auxiliary column, and the movable buttons are slidably connected in the V-shaped grooves.

[0010] Preferably, the auxiliary sealing and replacement mechanism includes a pull-out plate, the pull-out plate is clamped on the auxiliary box, the T-shaped ring groove is formed on the inner wall of the pull-out plate, a plug hole is formed in the middle of the upper end of the pull-out plate, 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, one end of the fan away from the center of the purification device is fixedly connected to a synchronous disk, the synchronous disk rotates in the T-shaped tube, a cavity is formed in the synchronous disk, and four U-shaped grooves are fixedly connected around the center in the cavity of the synchronous disk.

[0011] Preferably, the auxiliary seal replacement mechanism further includes an auxiliary spring which is slidably connected in the U-shaped groove body. One end of the auxiliary spring away from the U-shaped groove body is fixedly connected with an arc-shaped slider. A through hole is formed below the T-shaped pipe, and a plug pin column is slidably connected in the through hole. A column cavity is fixedly connected in the purification device below the T-shaped pipe, and the plug pin column is slidably connected in the column cavity. Positioning columns are fixedly connected to both sides of the plug pin column, and return springs are fixedly connected to the positioning columns on both sides of the plug pin column. The ends of the return springs away from the plug pin column extend downward and are fixedly connected to the return springs.

[0012] Preferably, the auxiliary box is snap-connected to the middle of the conduit, the material box is slidably connected in the auxiliary box, a plurality of sieve holes are formed at the bottom of the material box, there are eight material boxes, the material boxes are in contact with the conduit, and the electric telescopic rod is electrically connected to an external controller.

[0013] Preferably, rubber sealing strips are arranged around the draw plate, the insertion hole is slidably adapted to the plug pin column, and the synchronous disc is directly above the vertical position of the insertion hole.

[0014] Preferably, the arc-shaped slider is composed of a slider and an arc-shaped plate, and the arc-shaped plate in the arc-shaped slider abuts against the through hole.

[0015] Compared with the prior art, the present invention provides a large-air-volume ammonia decomposition hydrogen production purification device, which has the following beneficial effects:

[0016] 1. Through the setting of the adsorbent activation mechanism, when ammonia is decomposed to produce hydrogen and purified, the adsorbent bed layer is divided into multiple parts. Then, while producing hydrogen and purifying, the adsorbent in the device in the material box is cleaned and activated one by one. When one adsorbent bed layer is being activated, other parts are still working normally for purification, ensuring that the entire system continuously and stably outputs high-purity hydrogen, enabling the purification process to proceed without interruption. Moreover, by activating the material boxes one by one, the adsorption capacity of the adsorbent can be restored in a timely manner, keeping it in a good adsorption effect all the time, thereby improving the purification efficiency and quality, further preventing the adsorption capacity of the adsorbent from decreasing after being used for a period of time, and then avoiding the situation that the hydrogen purity decreases due to its adsorption saturation, effectively reducing the hydrogen purity fluctuation caused by the adsorbent saturation, and ensuring that the output hydrogen always maintains a stable state of high purity.

[0017] 2. Through the setting of the auxiliary seal replacement mechanism, when purifying a large amount of hydrogen produced from ammonia, the flow of air generates power to blow the fan to rotate. Subsequently, the rotation of the fan is converted into centrifugal force, which pushes the arc-shaped slider to contact the through-hole. In this way, when performing hydrogen purification work, the connection stability between the draw-out plate and the purification device is ensured. Further, under the action of the sealing rubber ring arranged around the draw-out plate, the sealing performance and stability of the auxiliary connection are ensured during the purification operation of the large-volume ammonia decomposition to produce hydrogen, avoiding the leakage of toxic gases inside the decomposed gas and causing harm to the staff. Compared with the prior art where only screws or clamping parts are used for fixation, it is easy to loosen under the action of air flow. The implementation of this structure is further tightened under the air flow, avoiding loosening.

[0018] 3. Further, when the adsorption layer in the material box fails and needs to be replaced, in the case of dividing the material box into multiple parts, only the local adsorption layer is replaced, that is, only the failed part is replaced instead of the entire adsorption device, reducing material waste, lowering the maintenance cost, replacing the failed adsorption layer in a timely manner, enabling the other normally working adsorption layers to continuously perform at their best, improving the overall utilization rate of the equipment, enabling the non-failed parts to continue to play a role, making full use of their remaining value, improving the resource utilization efficiency, reducing a large amount of waste adsorption materials generated due to overall replacement, and with a reduced replacement range, the operation is relatively simple, the required time is greatly shortened, reducing the equipment downtime for maintenance. Further, according to different working conditions and adsorption requirements, the replacement area and frequency can be flexibly adjusted to better adapt to production changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is an internal view structure diagram of the purification device of the present invention;

[0021] Figure 3 is a structure diagram of the local adsorbent activation mechanism of the present invention;

[0022] Figure 4 is a disassembled structure diagram of the adsorbent activation mechanism of the present invention;

[0023] Figure 5 is a structure diagram of the local auxiliary seal replacement mechanism of the present invention;

[0024] Figure 6 is a disassembled structure diagram of the auxiliary seal replacement mechanism of the present invention;

[0025] Figure 7 is of the present invention Figure 4 the enlarged structure diagram at A in;

[0026] Figure 8 is of the present invention Figure 6Enlarged structure diagram at position B in [the figure];

[0027] Figure 9 For the present invention Figure 6 Enlarged structure diagram at position C in [the figure].

[0028] In the figure:

[0029] 11. Purification device; 12. Conduit;

[0030] 2. Adsorbent activation mechanism; 21. Auxiliary box; 22. Screen; 23. T-shaped ring groove; 24. Circular tube; 25. Pusher plate; 26. Material box; 27. T-shaped slider; 28. V-shaped groove; 29. Electric telescopic rod; 210. Active spring; 211. Auxiliary column; 212. Active button;

[0031] 3. Auxiliary seal replacement mechanism; 31. Drawer plate; 32. Insertion hole; 33. T-shaped tube; 34. Fan; 35. Synchronous disk; 36. U-shaped groove body; 37. Auxiliary spring; 38. Arc-shaped slider; 39. Through hole; 310. Column cavity; 311. Pin column; 312. Return spring. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Next, the present invention will be further described in detail according to the drawings and embodiments. Embodiment

[0034] Please refer to Figures 1 to 4 as shown:

[0035] To solve the problems mentioned in the technical solutions, the embodiment of the present application provides a large-air-volume ammonia decomposition hydrogen production purification device, including: a purification device 11, a decomposition gas conveying device is connected to the upper end of the purification device 11, a conduit 12 is fixedly connected to the inner wall of the purification device 11, the conduit 12 is connected to an external activated liquid conveying device, an adsorbent activation mechanism 2 is arranged in the purification device 11, the adsorbent activation mechanism 2 includes a material box 26, an adsorbent bed layer is arranged in the material box 26, and an auxiliary seal replacement mechanism 3 is arranged above the adsorbent activation mechanism 2;

[0036] The adsorbent activation mechanism 2 is used to rotate and change the position where the adsorbent bed in the material box 26 contacts the conduit 12, thereby activating the adsorbent beds in multiple material boxes 26. The adsorbent activation mechanism 2 further includes an auxiliary box 21. The auxiliary box 21 is snap-connected to 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 formed in the inner circle of the auxiliary box 21. A circular tube 24 is rotatably connected to the middle of the auxiliary box 21. Eight baffle plates 25 are fixedly connected to the outer circle of the circular tube 24. The material box 26 is placed between two synchronous discs 35. A monitoring device for the adsorption performance is provided in the material box 26. The material box 26 is slidably connected in the auxiliary box 21. A plurality of screen holes are formed in the bottom of the material box 26. There are eight material boxes 26. The material box 26 is in contact with the conduit 12. T-shaped sliders 27 are 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 are slidably connected in the T-shaped ring groove 23. Eight V-shaped grooves 28 are formed in a circular pattern in the inner circle of the circular tube 24. The V-shaped grooves 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 mainly used to drive the auxiliary column 211 to displace in the vertical direction by telescoping, thereby driving 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. One end of the electric telescopic rod 29 away from the auxiliary box 21 is fixedly connected to the auxiliary column 211. An inner cavity is formed in the auxiliary column 211. A movable spring 210 is fixedly connected to the inner cavity of the auxiliary column 211. One end of the movable spring 210 away from the auxiliary column 211 is fixedly connected to the bottom of the auxiliary box 21. Eight movable buttons 212 are fixedly connected to the outer circle of the auxiliary column 211. The movable buttons 212 are slidably connected in the V-shaped grooves 28.

[0037] Further embodiments: Please refer to Figures 5 to 9 as shown in

[0038] The auxiliary seal replacement mechanism 3 is used to replace the adsorbent bed when it cannot be effectively regenerated or its performance drops to a certain extent, and to ensure the sealing inside the purification device 11 during decomposition and purification. The auxiliary seal replacement mechanism 3 includes a pull plate 31, with rubber sealing strips arranged around the pull plate 31. The pull plate 31 is snap-connected to the auxiliary box 21. A T-shaped ring groove 23 is formed on the inner wall of the pull plate 31. A plug hole 32 is opened in the middle of the upper end of the pull plate 31, and the plug hole 32 is slidably adapted to the plug pin 311. Two T-shaped tubes 33 are symmetrically and fixedly connected to the center of the purification device 11. A fan 34 is rotatably connected in the T-shaped tube 33. The fan 34 is mainly driven by the air flow generated by the decomposition products of ammonia. One end of the fan 34 away from the center of the purification device 11 is fixedly connected to a synchronous disk 35. The synchronous disk 35 is mainly used to synchronously rotate under the drive of the rotation of the fan 34 to generate centrifugal force to push the arc-shaped slider 38 to move outward. The synchronous disk 35 is located directly above the vertical position of the plug hole 32. The synchronous disk 35 rotates in the T-shaped tube 33. An inner cavity is opened in the synchronous disk 35, and four U-shaped troughs 36 are fixedly connected around the center in the inner cavity of the synchronous disk 35;

[0039] The auxiliary seal replacement mechanism 3 further includes an auxiliary spring 37. The auxiliary spring 37 is slidably connected in the U-shaped trough 36. One end of the auxiliary spring 37 away from the U-shaped trough 36 is fixedly connected to an arc-shaped slider 38. The arc-shaped slider 38 is composed of a slider and an arc-shaped plate. A through hole 39 is opened below the T-shaped tube 33. A plug pin 311 is slidably connected in the through hole 39. The plug pin 311 is mainly used to push downward and insert into the plug hole 32 when the arc-shaped slider 38 moves under centrifugal force to assist in the connection stability between the pull plate 31 and the purification device 11. The arc-shaped plate in the arc-shaped slider 38 abuts against the through hole 39. A column cavity 310 is fixedly connected inside the purification device 11 below the T-shaped tube 33. The plug pin 311 is slidably connected in the column cavity 310. Positioning columns are fixedly connected to both sides of the plug pin 311. Return springs 312 are fixedly connected to the positioning columns on both sides of the plug pin 311. One end of the return spring 312 away from the plug pin 311 extends downward and is fixedly connected to the return spring 312;

[0040] The working principle of all the contents in the above embodiments is as follows:

[0041] The following is the working process of the adsorbent activation mechanism 2 that rotates to change the contact position between the adsorbent bed in the material box 26 and the conduit 12, thereby activating the adsorbent beds in multiple material boxes 26:

[0042] During use, the decomposition products of ammonia are transmitted to the inner cavity of the purification device 11 through the decomposition gas transmission device connected to the outside of the purification device 11. Then, the gas flows through the purification device 11 and contacts the adsorbent bed in the material box 26. Impurity molecules begin to be adsorbed and interact with the surface of the adsorbent. As the gas continuously passes through the adsorbent bed, the impurities gradually diffuse into the interior of the adsorbent for deeper adsorption. When the decomposition product flows through, the impurity molecules continuously fill the voids inside the adsorbent, and the adsorption capacity of the adsorbent gradually saturates. Under the control of the external controller, the electric telescopic rod 29 contracts, pulling the auxiliary column 211 to move downward towards 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 circle of the auxiliary column 211 moves downward synchronously with the auxiliary column 211. When moving downward, along the inclined groove of the V-shaped groove 28, it moves downward. Since the circular 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 circular tube 24 is pushed to rotate counterclockwise in the auxiliary box 21. When the movable button 212 slides to the bottom end of the V-shaped groove 28, the electric telescopic rod 29 extends, pushing the auxiliary column 211 upward. At this time, the movable button 212 moves in the inclined upward groove of the V-shaped groove 28, pushing the V-shaped groove 28 to continue rotating, thereby driving the circular tube 24 to rotate. Thus, with one operation of the telescopic movement of the electric telescopic rod 29, the V-shaped groove 28 and the circular tube 24 are pushed to rotate 45 degrees in the auxiliary box 21. Therefore, under the rotation of the circular tube 24, the material box 26 between the two V-shaped grooves 28 on the outer circle of the circular tube 24 is pushed to rotate counterclockwise, generating displacement, and different material boxes 26 are switched to be clamped with the conduit 12. After switching the clamping of the material box 26 and the conduit 12, under the action of the activation liquid delivery device connected to the outside of the conduit 12, the cleaning liquid flows in from the upper end of the conduit 12 to wash the gradually saturated adsorbent bed inside the material box 26, cleaning the adsorption layer. In the next rotation operation, the position of the material box 26 after cleaning is changed, and it is rotated out of the conduit 12, and the activated adsorption layer is put back into use. The purified hydrogen flows into another pipeline through the bottom of the purification device 11 and then is discharged for subsequent applications. While purifying hydrogen, the treatment of the adsorbent is completed synchronously, improving the adsorption efficiency of the adsorbent;

[0043] Through the setting of the adsorbent activation mechanism 2, during the ammonia decomposition for hydrogen production and purification, the adsorbent bed layer is divided into multiple parts. Thus, while producing hydrogen through purification, the adsorbent in the device within the material box 26 is cleaned and activated one by one. When one of the adsorbent bed layers is being activated, the other parts are still working normally for purification, ensuring that the entire system continuously and stably outputs high-purity hydrogen, enabling the uninterrupted progress of the purification process. Moreover, by activating the material box 26 one by one, the adsorption capacity of the adsorbent can be promptly restored, enabling it to always maintain a good adsorption effect, thereby improving the efficiency and quality of purification, further preventing the decline in the adsorption capacity of the adsorbent after a period of use, and then avoiding the situation where the hydrogen purity decreases due to its adsorption saturation, effectively reducing the hydrogen purity fluctuations caused by the saturation of the adsorbent, and ensuring that the output hydrogen always maintains a stable state of high purity.

[0044] Please refer to Figures 1 to 4 。

[0045] The following is the working process of the auxiliary seal replacement mechanism 3 for replacing the auxiliary adsorbent bed layer when it cannot be effectively regenerated or its performance drops to a certain extent and for ensuring the sealing inside the purification device 11 during decomposition and purification:

[0046] During use, when a large amount of ammonia decomposition products are put into the purification device 11, the flow of a large amount of ammonia decomposition products generates an air current, and the flow of the air current blows the fan 34 to rotate. Under the rotational action of the fan 34, the synchronous disk 35 fixedly connected to the fan 34 rotates in unison. When the 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, under the action of the centrifugal force, the arc-shaped slider 38 slides towards the outer circle of the synchronous disk 35 within the U-shaped groove body 36, and the auxiliary spring 37 is stretched, pushing the arc-shaped slider 38 to form a displacement. When the arc-shaped slider 38 moves towards the outer circle of the synchronous disk 35 for diffusion, it gradually pushes the through-hole 39 downward, thereby driving the through-hole 39 to be inserted into the insertion hole 32. At this time, the return spring 312 is compressed, and the through-hole 39 is inserted into the return spring 312, assisting in enhancing the connection stability between the draw plate 31 and the purification device 11 during hydrogen production and purification;

[0047] 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 ceases to act. Under the action of the restoring force, the auxiliary spring 37 pulls the arc-shaped slider 38 to contract towards the center of the synchronous disk 35, and the through-hole 39 moves upward to release the insertion with the insertion hole 32. When the adsorption layer in the material box 26 fails and needs to be replaced, under the clamping action between the material box 26 and the draw plate 31, the draw plate 31 is pulled out to complete the replacement operation.

[0048] With the setting of the auxiliary seal replacement mechanism 3, when purifying a large amount of hydrogen produced from ammonia, the flowing air generates power to blow the fan 34 to rotate. Then, when the fan 34 rotates, centrifugal force is generated, which pushes the arc-shaped slider 38 to contact the through hole 39. The magnitude of the centrifugal force will automatically change according to the rotation speed of the fan 34 and the air flow intensity of the ammonia decomposition products. When the air flow is strong, the centrifugal force is large and the contact is tighter, resulting in a better sealing effect; when the air flow is weak, the centrifugal force decreases accordingly, but still maintains a certain contact force to ensure the sealing performance. The contact force is automatically adjusted according to the change of working conditions, so as to ensure the connection stability between the draw-out plate 31 and the purification device 11 during the hydrogen production and purification work. Further, under the action of the sealing rubber ring arranged around the draw-out plate 31, the sealing performance and stability of the auxiliary connection are ensured during the hydrogen production and purification operation of a large amount of ammonia decomposition, avoiding the leakage of toxic gases inside the decomposed gas and causing harm to the staff. Compared with the prior art in which only screws or clamping parts are used for fixation and are prone to loosen under the action of air flow, the implementation of this structure is further tightened under the air flow to avoid loosening.

[0049] Furthermore, when the adsorption layer in the material box 26 needs to be replaced due to failure, in the case of dividing the material box 26 into multiple parts, the local adsorption layer is replaced. Through the monitoring device of the adsorption performance of the devices in each material box 26, the material box 26 that needs to be replaced is detected, so that only the failed part is replaced instead of the entire adsorption device, reducing material waste, lowering the maintenance cost, replacing the failed adsorption layer in a timely manner, enabling the other normally working adsorption layers to continuously exhibit the best performance, improving the overall utilization rate of the equipment, enabling the unfailed part to continue to play a role, making full use of its remaining value, improving the resource utilization efficiency, reducing a large amount of waste adsorption materials generated due to overall replacement, and with a reduced replacement range, relatively simple operation, a significantly shortened required time, and reduced equipment downtime for maintenance. Further, according to different working conditions and adsorption requirements, the replacement area and frequency can be flexibly adjusted to better adapt to the changes in production.

[0050] Please refer to the above working process Figures 5 to 9 。

[0051] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0052] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and 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 contact position between the adsorbent bed layer in the material box (26) and the guide tube (12), thereby activating the adsorbent bed layers in the plurality of material boxes (26); 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 level, and to ensure the sealing performance of the purification device (11) during decomposition and purification; The adsorbent activation mechanism (2) also includes an auxiliary box (21), 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), and 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), and both sides of the material box (26) close to the inner wall of the auxiliary box (21) are fixedly connected to T-shaped sliders (27), and the T-shaped sliders (27) are slidably connected in the T-shaped ring groove (23). The inner ring of the circular tube (24) is surrounded by eight V-shaped grooves (28), and the V-shaped The slots (28) are connected to each other, the middle of the auxiliary box (21) is fixedly connected to an electric telescopic rod (29), the electric telescopic rod (29) is arranged in the middle of the circular tube (24), the 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 provided in the auxiliary column (211), a movable spring (210) is fixedly connected to the inner cavity of the auxiliary column (211), 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 ring of the auxiliary column (211) is fixedly connected to eight movable buttons (212), and the movable buttons (212) are slidably connected in the V-shaped slot (28).

2. The large-volume ammonia decomposition hydrogen production and purification equipment according to claim 1, characterized in that: The auxiliary seal replacement mechanism (3) comprises a pull-out plate (31), the pull-out plate (31) is clamped on the auxiliary box (21), the T-shaped ring groove (23) is provided on the inner wall of the pull-out plate (31), a plug hole (32) is provided in the middle of the upper end of the pull-out plate (31), two T-shaped tubes (33) are fixedly connected to the center of the purification device (11) in a symmetrical manner, a fan (34) is rotatably connected to the inside of the T-shaped tube (33), one end of the fan (34) away from the center of the purification device (11) is fixedly connected to a synchronous disk (35), the synchronous disk (35) rotates in the T-shaped tube (33), an inner cavity is provided in the synchronous disk (35), and four U-shaped grooves (36) are fixedly connected around the center of the inner cavity of the synchronous disk (35).

3. The large-volume ammonia decomposition hydrogen production and purification equipment according to claim 2, characterized in that: The auxiliary seal replacement mechanism (3) also includes an auxiliary spring (37), the auxiliary spring (37) 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 to an arc-shaped slider (38), a through hole (39) is opened below the T-shaped tube (33), a latch column (311) is slidably connected in the through hole (39), a column cavity (310) is fixedly connected in the purification device (11) below the T-shaped tube (33), the latch column (311) is slidably connected in the column cavity (310), 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 the end of the reset spring (312) away from the latch column (311) extends downward and is fixedly connected to the reset spring (312).

4. The large-volume ammonia decomposition hydrogen production and purification equipment according to claim 1, 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), and the material box (26) is provided with eight sieve holes. The material box (26) is in close contact with the conduit (12), and the electric telescopic rod (29) is electrically connected to an external controller.

5. The large-volume ammonia decomposition hydrogen production and purification equipment according to claim 2, 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 column (311). The synchronization disk (35) is located directly above the vertical position of the plug-in hole (32).

6. The large-volume ammonia decomposition hydrogen production and purification equipment according to claim 3, 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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