Adsorption filtering device for hydrogen purification

Abstract

The invention provides an adsorption filtering device for hydrogen purification, and belongs to the technical field of hydrogen treatment.The adsorption filtering device comprises a shell, a supporting rod, a gas inlet pipe and a gas outlet pipe, a rotating frame is rotationally assembled in the shell, and three cavities separated by partition plates are formed in the rotating frame; the three cavities are an adsorption cavity for purifying hydrogen, a desorption cavity for desorbing an adsorbent and a detection cavity for detecting the adsorbent in sequence along the clockwise direction; a rotating column is arranged at the center of the rotating frame, a sliding groove is spirally formed in the side wall of the rotating column, a moving frame vertically slides on the top of the rotating column and comprises a sliding column vertically sliding on the rotating frame and a supporting ring fixedly connected to the top of the sliding column, and a sliding block is fixedly connected to the inner wall of the supporting ring; the shell is provided with a driving piece used for driving the rotating column to rotate, and sealing pieces used for sealing all the cavities when the supporting ring moves are arranged in the shell. The device has the effects of improving the utilization rate of the adsorbent and improving the working efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen processing, and in particular to an adsorption and filtering device for hydrogen purification. Background Art

[0002] Hydrogen is a colorless, odorless gas. It is also an environmentally friendly energy source. The only product when it is burned is water, and its use causes little pollution. Hydrogen purification refers to removing impurities from hydrogen by various methods to obtain high-purity hydrogen. Adsorption filtration in hydrogen purification is an effective separation technology that selectively adsorbs impurities to improve the purity of hydrogen. During the gas flow process, impurity gas molecules enter the adsorbent and are captured by the adsorbent, while hydrogen continues to flow out, thereby improving the purity of hydrogen.

[0003] A Chinese patent document with authorization announcement number CN218166470U discloses an adsorption filtration device for hydrogen purification, which includes a cabinet, a first compartment and a second compartment separated by a partition are provided in the cabinet, a first adsorption module and a second adsorption module for hydrogen purification are respectively provided in the first compartment and the second compartment, a first air outlet pipeline and a first air inlet pipeline are respectively connected to the upper and lower parts of the cabinet located at the first adsorption module, and a second air outlet pipeline and a second air inlet pipeline are respectively connected to the upper and lower parts of the cabinet located at the second adsorption module. The setting of the two compartments enables one compartment to replace the adsorbent while the other compartment can continue to prepare hydrogen.

[0004] With respect to the above-mentioned related technologies, impurity gases in hydrogen are adsorbed by adsorbents, and the adsorbents are taken out when they need to be replaced after being used for a period of time, thereby reducing the utilization rate of the adsorbents. Moreover, if the adsorbents in both compartments need to be replaced, the machine needs to be shut down to replace the adsorbents, which is not conducive to improving production efficiency. Summary of the invention

[0005] In view of this, the present invention provides an adsorption filtration device for hydrogen purification, aiming to solve the problems of low adsorbent utilization and low working efficiency caused by adsorbent replacement.

[0006] In order to solve the above technical problems, the present invention provides an adsorption filtration device for hydrogen purification, comprising a shell, a support rod fixedly connected to the bottom of the shell, and an air inlet pipe and an air outlet pipe connected to the lower side wall and the upper side wall of the shell, a rotating frame rotatably mounted in the shell, and three cavities separated by a partition are arranged on the rotating frame, each cavity is provided with an adsorbent, and the three cavities are sequentially arranged in a clockwise direction as an adsorption chamber for purifying hydrogen, a desorption chamber for desorbing the adsorbent, and a detection chamber for detecting the adsorbent; A rotating column for driving the rotating frame to rotate is provided at the center of the rotating frame, a sliding groove is spirally opened on the side wall of the rotating column, a moving frame is slid up and down on the top of the rotating column, and the moving frame includes a sliding column that slides up and down on the rotating frame and a supporting ring fixedly connected to the top of the sliding column, and a sliding block is fixedly connected to the inner wall of the supporting ring, and when the sliding block slides in the sliding groove, it drives the supporting ring and the sliding column to move upward; The shell is provided with a driving member for driving the rotating column to rotate, and the shell is provided with a sealing member for sealing each chamber when the supporting ring moves.

[0007] By adopting the above technical scheme, adsorbents are placed in the adsorption chamber, the desorption chamber and the detection chamber, hydrogen is introduced into the adsorption chamber to purify the hydrogen, and after a period of use, the rotating frame rotates to switch the three chambers, so that the unused adsorbent enters the adsorption chamber to adsorb hydrogen, so as to speed up the replacement of the adsorbent, which is beneficial to improve work efficiency. The setting of the sealing member can seal the chamber during the switching of the adsorbent, thereby reducing the impact between the chambers; when the used adsorbent is rotated to the desorption chamber, the used adsorbent is desorbed by the desorption chamber, so as to improve the utilization rate of the adsorbent; after the adsorbent rotated to the detection chamber is detected, it is judged whether the adsorbent can continue to be used, so as to choose whether the adsorbent needs to be replaced, thereby facilitating the continuous hydrogen purification work, which is beneficial to improve work efficiency.

[0008] Optionally, the sealing member includes a movable plate fixedly connected to a support ring, a connecting plate, a through hole and a blocking column, the through hole is opened on the connecting plate and the movable plate, the blocking column is fixedly connected to the top of the movable plate and the bottom of the connecting plate, and the through hole and the blocking column on the movable plate correspond one-to-one with the blocking column and the through hole on the connecting plate.

[0009] By adopting the above technical solution, after the movable plate moves, the blocking columns on the movable plate can block the through holes on the connecting plate; the blocking columns on the connecting plate can block the through holes on the movable plate, thereby closing each chamber and facilitating the switching of the adsorbent.

[0010] Optionally, a return spring is provided between the movable plate and the inner wall of the shell.

[0011] By adopting the above technical solution, the reset spring is set to reset the rotating column after the rotating frame rotates to switch the adsorbent, and at the same time, the movable plate moves to restore the initial position, releasing the closure of each chamber to facilitate the continuation of work.

[0012] Optionally, support orifice plates for placing adsorbents are respectively provided on the upper and lower sides of the rotating frame.

[0013] By adopting the above technical solution, adsorbents are placed on both the upper and lower layers of the rotating frame. The arrangement of two layers of adsorbents can increase the probability of removing impurities, which is beneficial to improving the quality of hydrogen.

[0014] Optionally, an elastic sheet is fixedly connected to one side of the movable plate close to the rotating frame, and one side of the elastic sheet abuts against an elastic sleeve fixedly assembled with the movable plate.

[0015] By adopting the above technical solution, the provision of the elastic sheet and the elastic sleeve can seal the gap between the rotating frame and the movable plate, thereby reducing interference between the chambers when purifying hydrogen, which is beneficial to the purification work.

[0016] Optionally, a door is hinged on the shell on one side of the detection chamber.

[0017] By adopting the above technical solution, when it is detected that the adsorbent needs to be replaced, the cabin door can be opened to replace the adsorbent, which is conducive to improving work efficiency.

[0018] Optionally, the driving member includes a rotation source installed at the bottom of the shell, and a driving shaft of the rotation source is connected to the rotating column.

[0019] By adopting the above technical solution, the setting of the rotation source facilitates the rotation of the rotating column.

[0020] Optionally, a limit block is fixedly connected to the upper side wall and the lower side wall in the shell, and the movable plate is slidably matched with the limit block.

[0021] By adopting the above technical solution, the setting of the limit block can limit the movable plate and the connecting plate, and at the same time can guide the movement of the movable plate to facilitate the movement of the movable plate.

[0022] In summary, compared with the prior art, the present invention includes at least one of the following beneficial technical effects: 1. Adsorbents are placed in the adsorption chamber, desorption chamber and detection chamber. Hydrogen is introduced into the adsorption chamber to purify the hydrogen. After a period of use, the rotating frame rotates to switch the three chambers, so that the unused adsorbent enters the adsorption chamber to adsorb hydrogen, so as to speed up the replacement of the adsorbent and improve work efficiency. The setting of the seal can seal the chamber during the switching of the adsorbent, thereby reducing the impact between the chambers; when the used adsorbent is rotated to the desorption chamber, the used adsorbent is desorbed by the desorption chamber, so as to improve the utilization rate of the adsorbent; after the adsorbent rotated to the detection chamber is tested, it is determined whether the adsorbent can continue to be used to choose whether the adsorbent needs to be replaced, so as to facilitate the continuous hydrogen purification work and improve work efficiency.

[0023] 2. After the moving plate moves, the blocking columns on the moving plate can block the through holes on the connecting plate; the blocking columns on the connecting plate can block the through holes on the moving plate, thereby closing each chamber to facilitate the switching of the adsorbent.

[0024] 3. The reset spring is set so that after the rotating frame rotates to switch the adsorbent, the rotating column can be reset, and the moving plate can be moved to restore the initial position, releasing the seal of each chamber to facilitate the continuation of work. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure of the assembly of the rotating frame and the rotating column in the present invention; Figure 3 is a cross-sectional view of the present invention; Figure 4 for Figure 3 A partial enlarged view of the middle area A; Figure 5 It is a schematic diagram of the structure of the assembly of the rotating column and the moving frame in the present invention; Figure 6 It is a schematic diagram of the structure of the assembly of the moving frame and the sliding block in the present invention; Figure 7 It is a structural schematic diagram of the moving plate and the connecting plate in the present invention; Figure 8 It is a schematic diagram of the structure of the assembly of the moving plate and the blocking column in the present invention; Fig. 9 It is a schematic diagram of the structure of the assembly of the limit block and the shell in the present invention.

[0026] Explanation of the reference numerals: 1. Shell; 11. Support rod; 12. Inlet pipe; 13. Outlet pipe; 2. Rotating frame; 21. Partition; 22. Adsorption chamber; 23. Desorption chamber; 24. Detection chamber; 241. Hatch door; 25. Support hole plate; 3. Rotating column; 31. Slide groove; 32. Moving frame; 33. Sliding column; 34. Support ring; 35. Slider; 4. Driving member; 41. Rotation source; 5. Sealing member; 51. Moving plate; 511. Limit block; 52. Connecting plate; 53. Through hole; 54. Blocking column; 6. Reset spring; 7. Elastic sheet; 71. Elastic sleeve. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the embodiments of the present invention. Figure 1-Figure 9, the technical scheme of the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0028] Reference Figure 1 and Figure 2 The present invention provides an adsorption filtration device for purifying hydrogen, comprising a support rod 11 erected on a horizontal plane, a shell 1 fixedly connected to the top of the support rod 11, an air inlet pipe 12 and an air outlet pipe 13 connected to the shell 1, a rotating frame 2 rotatably assembled inside the shell 1, a rotating column 3 arranged at the center of the rotating frame 2, and a driving member 4 for driving the rotating column 3 to rotate.

[0029] Reference Figure 1 , Figure 2 and Figure 3 , three support rods 11 are provided and extend in the up-down direction to provide support for the shell 1. In other embodiments, the number of support rods 11 can be set according to actual needs; the shell 1 is cylindrical; the air outlet pipe 13 is connected to the top of the shell 1, and the air inlet pipe 12 is connected to the bottom of the shell 1; the rotating frame 2 has three partitions 21 extending up and down and dividing the rotating frame 2 into three chambers, each of which is provided with an adsorbent, and the upper and lower sides of the rotating frame 2 are respectively provided with support orifice plates 25 for placing the adsorbent, and the three chambers are sequentially provided as adsorption chambers 22, A desorption chamber 23 and a detection chamber 24, a hatch 241 is hinged on the shell 1 on one side of the detection chamber 24, and an air inlet pipe 12 and an air outlet pipe 13 are arranged on each chamber, the adsorption chamber 22 is used to remove impurities in hydrogen, the desorption chamber 23 is used to desorb the adsorbent to facilitate the reuse of the adsorbent, and the detection chamber 24 is used to detect the adsorbent to determine whether the adsorbent can continue to be used; a rotating source 41 is installed at the bottom of the shell 1. In this embodiment, the rotating source 41 is a motor. In other embodiments, the rotating source 41 can also be a pneumatic motor or a rotary cylinder, etc.

[0030] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6A transmission member is provided in the shell 1, and the transmission member is used to make the rotating column 3 drive the rotating frame 2 to rotate. The transmission member includes a slide groove 31 spirally opened on the rotating column 3 and a movable frame 32 that slides up and down on the top of the rotating column 3. The movable frame 32 includes a sliding column 33 that slides up and down on the rotating frame 2 and a support ring 34 fixedly connected to the upper surface of the sliding column 33. A slider 35 is fixedly connected to the inner side wall of the support ring 34. The rotation of the rotating column 3 can make the slider 35 slide in the slide groove 31. When the slider 35 slides in the slide groove 31, the support ring 34 and the sliding column 33 can move in the vertical direction. When the slider 35 moves to the end of the slide groove 31, the bottom of the sliding column 33 is still located in the rotating frame 2. The rotation of the rotating column 3 can realize the rotation of the rotating frame 2, so as to switch the adsorbent.

[0031] In order to improve work efficiency, refer to Figure 3 , Figure 7 , Figure 8 and Fig. 9 When the support ring 34 moves, a sealing member 5 for sealing each chamber individually is provided on the upper and lower sides of the shell 1. The sealing member 5 includes a moving plate 51, a connecting plate 52, a through hole 53 and a blocking column 54. The moving plate 51 is fixedly connected to the support ring 34 and can move under the drive of the support ring 34. An elastic sheet 7 is fixedly connected to the side of the moving plate 51 close to the rotating frame 2. An elastic sleeve 71 fixedly assembled with the moving plate 51 is abutted on one side of the elastic sheet 7, so as to facilitate sealing between the chambers so that they do not interfere with each other. The upper side wall and the lower side wall in the shell 1 are respectively fixedly connected to the limiting block 511 for guiding the movement of the moving plate 51; the connecting plate 52 is fixedly connected to The inner wall of the shell 1 is arranged close to the movable plate 51, and the through hole 53 is opened on the movable plate 51 and the connecting plate 52. The blocking column 54 is fixedly arranged on the side where the movable plate 51 and the connecting plate 52 are close to each other, and the blocking column 54 on the movable plate 51 corresponds one to one with the through hole 53 on the connecting plate 52, and the through hole 53 on the movable plate 51 corresponds one to one with the blocking column 54 on the connecting plate 52. When the movable plate 51 moves, the blocking column 54 and the through hole 53 cooperate with each other so that the blocking column 54 blocks the through hole 53, thereby making the movable plate 51 and the connecting plate 52 airtight, so as to facilitate sealing of each chamber, which is beneficial to reduce the probability of unpurified hydrogen leaving the shell 1 when the adsorbent is switched.

[0032] Reference Figure 4 A reset spring 6 is fixedly installed between the movable plate 51 and the inner wall of the shell 1. After the adsorbents in the three chambers are switched, the reset spring 6 restores its elastic deformation to drive the movable plate 51 to move, and the movable plate 51 drives the support ring 34 to move and reset, so as to facilitate the next switching of the adsorbent.

[0033] The implementation principle of the adsorption and filtration device for purifying hydrogen of the present invention is as follows: first, hydrogen enters the adsorption chamber 22 and is adsorbed by the adsorbent in the adsorption chamber 22, so as to purify the hydrogen; after purifying the hydrogen for a period of time, the rotation source 41 is started to drive the rotating column 3 to rotate, and the rotation of the rotating column 3 drives the slider 35 to slide in the slide groove 31, and as the slider 35 slides, the sliding column 33 and the support ring 34 move, and the movement of the support ring 34 drives the moving plate 51 to move, and the moving plate 51 moves to abut against the connecting plate 52, and the through holes 5 on the moving plate 51 and the connecting plate 52 are blocked by the blocking column 54. 3, so as to seal each chamber; the rotating column 3 then rotates, and since the sliding column 33 is still located in the rotating frame 2, the rotating column 3 can drive the rotating frame 2 to rotate, so that the adsorbent in the detection chamber 24 is transferred to the adsorption chamber 22 for replacement, the adsorbent in the adsorption chamber 22 is rotated to the desorption chamber 23 for desorption, and the adsorbent in the desorption chamber 23 is rotated to the detection chamber 24 for detection to determine whether the adsorbent can continue to be used; finally, under the action of the reset spring 6, the movable plate 51, the support ring 34, the sliding column 33 and the slider 35 are reset to continue to purify the hydrogen.

[0034] The arrangement of the three chambers is conducive to the replacement of the adsorbent, and the adsorbent can be reused, and the adsorbent can be detected in time to facilitate the timely replacement of the adsorbent.

[0035] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An adsorption filtration device for purifying hydrogen, comprising a housing (1), a support rod (11) fixedly connected to the bottom of the housing (1), and an air inlet pipe (12) and an air outlet pipe (13) connected to the lower side wall and the upper side wall of the housing (1), characterized in that: A rotating frame (2) is rotatably mounted in the housing (1), and the rotating frame (2) is provided with three cavities separated by a partition (21), each cavity is provided with an adsorbent, and the three cavities are arranged in a clockwise direction to be an adsorption chamber (22) for purifying hydrogen, a desorption chamber (23) for desorbing the adsorbent, and a detection chamber (24) for detecting the adsorbent; A rotating column (3) for driving the rotating frame (2) to rotate is provided at the center of the rotating frame (2); a sliding groove (31) is spirally opened on the side wall of the rotating column (3); a moving frame (32) is slidably mounted on the top of the rotating column (3); the moving frame (32) comprises a sliding column (33) that slides up and down on the rotating frame (2) and a support ring (34) that is fixedly connected to the top of the sliding column (33); a sliding block (35) is fixedly connected to the inner wall of the support ring (34); when the sliding block (35) slides in the sliding groove (31), it drives the supporting ring (34) and the sliding column (33) to move upward; The housing (1) is provided with a driving member (4) for driving the rotating column (3) to rotate, and the housing (1) is provided with a sealing member (5) for sealing each chamber when the supporting ring (34) moves.

2. The adsorption filtration device for hydrogen purification according to claim 1, characterized in that: The sealing member (5) comprises a movable plate (51) fixedly connected to a support ring (34), a connecting plate (52), a through hole (53) and a blocking column (54); the through hole (53) is formed on the connecting plate (52) and the movable plate (51); the blocking column (54) is fixedly connected to the top of the movable plate (51) and the bottom of the connecting plate (52); and the through hole (53) and the blocking column (54) on the movable plate (51) correspond one to one with the blocking column (54) and the through hole (53) on the connecting plate (52).

3. The adsorption filtration device for hydrogen purification according to claim 2, characterized in that: A return spring (6) is provided between the movable plate (51) and the inner wall of the housing (1).

4. The adsorption filtration device for hydrogen purification according to claim 2, characterized in that: Supporting orifice plates (25) for placing adsorbent are respectively provided on the upper and lower sides of the rotating frame (2).

5. The adsorption filtration device for hydrogen purification according to claim 2, characterized in that: An elastic sheet (7) is fixedly connected to one side of the movable plate (51) close to the rotating frame (2), and an elastic sleeve (71) fixedly assembled with the movable plate (51) is abutted against one side of the elastic sheet (7).

6. The adsorption filtration device for hydrogen purification according to claim 2, characterized in that: A door (241) is hingedly connected to the housing (1) on one side of the detection chamber (24).

7. The adsorption filtration device for hydrogen purification according to claim 2, characterized in that: The driving member (4) comprises a rotation source (41) mounted on the bottom of the housing (1), and a driving shaft of the rotation source (41) is connected to the rotation column (3).

8. The adsorption filtration device for hydrogen purification according to claim 2, characterized in that: The upper side wall and the lower side wall in the housing (1) are fixedly connected to the limit blocks (511), and the movable plate (51) is slidably engaged with the limit blocks (511).

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