Novel hydrogen purification device

Abstract

The utility model relates to the technical field of hydrogen production, and discloses a novel hydrogen purification device which comprises a tower body, a gas outlet is formed in the top end of the tower body; an air inlet pipe is mounted on the side wall of the bottom end of the tower body; a pressure relief pipe is arranged on the side wall of the top end of the tower body; a group of upper through plates are fixedly connected to the inner wall of the tower body; a group of lower through plates are connected to the inner wall of the tower body in a sliding manner; the bottom end of the lower through plate is positioned below the upper through plate; the lower through plate moves up and down through the pressing unit; a feeding and discharging unit is arranged on the side wall of the tower body; the bottom end of the tower body is fixedly connected with a group of supporting legs, so that the problem that an adsorbent is easy to lose during existing hydrogen production purification is solved.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen production technology, specifically a novel hydrogen purification device. Background Technology

[0002] Hydrogen production from seawater involves directly or indirectly decomposing water molecules using electrolysis technology to obtain hydrogen, which is both environmentally friendly and resource-sustainable.

[0003] In the existing technology, during the electrolytic hydrogen production process of sodium chlorate (sodium hypochlorite), impurities in the hydrogen are adsorbed by porous adsorbents (such as activated carbon and molecular sieves) to achieve hydrogen separation and purification. However, because pressure swing adsorption is used, the loose molecular sieves or activated carbon are easily worn and broken under different pressure changes, requiring frequent replacement or maintenance, which affects the working efficiency of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a novel hydrogen purification device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A novel hydrogen purification device includes a tower body; an outlet is provided at the top of the tower body; an inlet pipe is installed on the bottom side wall of the tower body; a pressure relief pipe is provided on the top side wall of the tower body; a set of upper through plates is fixedly connected to the inner wall of the tower body; a set of lower through plates is slidably connected to the inner wall of the tower body; the bottom end of the lower through plate is located below the upper through plate; the lower through plate moves up and down through a pressing unit; a material inlet and outlet unit is provided on the side wall of the tower body; and a set of support legs is fixedly connected to the bottom of the tower body.

[0006] The compression unit includes a servo motor; the servo motor is fixedly connected to the bottom of the tower body; the output end of the servo motor is provided with a first rotating shaft, and the first rotating shaft extends into the tower body; a first through groove is opened in the middle of the lower through plate, and an annular cylinder is fixedly connected in the first through groove; the first rotating shaft passes through a set of upper through plates and an annular cylinder, and the first rotating shaft and the upper through plates are rotatably connected, and the first rotating shaft and the annular cylinder are connected by a screw and nut pair.

[0007] The feeding and discharging unit includes a feeding trough and a discharging trough; a set of feeding troughs is provided on the side wall of the tower body, and the feeding troughs are located below the upper through plate; a set of discharging troughs is provided on the other side wall of the tower body, and the discharging troughs are located below the feeding troughs.

[0008] A feed plate is bolted to the feed trough; a discharge plate is bolted to the discharge trough.

[0009] The top of the lower plate is provided with a first inclined surface, and the lowest end of the first inclined surface is located on one side of the discharge chute; during operation, the first inclined surface facilitates the material to fall from the discharge chute.

[0010] Fixed blocks are fixed to the inner walls on both sides of the tower body, and the fixed blocks are located below the lower through plate; a stirring shaft is provided on the fixed block, the top end of the stirring shaft penetrates through the lower through plate and is located below the upper through plate.

[0011] The fixed block has a first cavity; the bottom end of the stirring shaft extends into the first cavity and is fixedly connected to a first gear; a rack plate is slidably connected in the first cavity; the rack plate and the first gear mesh with each other; a push plate is fixedly connected to one side of the rack plate, and the push plate is fixedly connected to the side wall of the first cavity by a spring; one end of the rack plate extends out of the fixed block and is pushed by a power unit.

[0012] The power unit includes an arc-shaped block and an elliptical block; one end of the rack plate extends out of the fixed block and is fixedly connected to the arc-shaped block; the first rotating shaft is fixedly connected to the elliptical block relative to the position of the arc-shaped block.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Molecular sieves or activated carbon are fed between the upper and lower plates through the feeding and discharging unit. After feeding, the lower plate is moved up by the compaction unit, so that the molecular sieves or activated carbon between the upper and lower plates are in a compacted state. The bonding between the molecular sieves or activated carbon particles is stronger, and the compressive strength is significantly improved. This is suitable for the operation environment of frequent pressure swing adsorption, avoiding frequent replacement or maintenance of adsorbents, thereby ensuring the working efficiency of the equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present utility model. Figure 1 ;

[0016] Figure 2 This is a three-dimensional schematic diagram of the present utility model. Figure 2 ;

[0017] Figure 3 This is a cross-sectional view of the present invention;

[0018] Figure 4 This utility model Figure 3 Enlarged 3D schematic diagram of the structure of area A in the middle;

[0019] Figure 5 This is a top sectional view of the fixing block of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Tower body; 11. Air outlet; 12. Air inlet pipe; 13. Pressure relief pipe; 14. Upper through plate; 15. Lower through plate; 16. Support leg; 2. Servo motor; 21. First rotating shaft; 22. First through groove; 23. Annular cylinder; 24. Feed chute; 25. Discharge chute; 26. Feed plate; 27. Discharge plate; 28. First inclined surface; 3. Fixed block; 31. Stirring shaft; 32. First cavity; 33. First gear; 34. Rack plate; 35. Push plate; 36. Arc-shaped block; 37. Elliptical block. Detailed Implementation

[0022] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.

[0023] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0024] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0025] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0026] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order between these entities or operations.

[0027] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0028] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0029] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0030] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0031] Please see Figures 1-5As shown, a novel hydrogen purification device includes a tower body 1; an outlet 11 is provided at the top of the tower body 1; an inlet pipe 12 is installed on the bottom side wall of the tower body 1; a pressure relief pipe 13 is provided on the top side wall of the tower body 1; a set of upper through plates 14 are fixedly connected to the inner wall of the tower body 1; a set of lower through plates 15 are slidably connected to the inner wall of the tower body 1; the bottom end of the lower through plates 15 is located below the upper through plates 14; the lower through plates 15 move up and down through a pressing unit; a material inlet and outlet unit is provided on the side wall of the tower body 1; a set of support legs 16 are fixedly connected to the bottom of the tower body 1. In the prior art, during the electrolytic hydrogen production process of sodium chlorate (sodium hypochlorite), impurities in the hydrogen produced during the hydrogen production process are adsorbed by porous adsorbents (such as activated carbon and molecular sieves), which effectively... Currently, hydrogen separation is used for hydrogen purification. However, due to the use of pressure swing adsorption (PSA), the loose molecular sieves or activated carbon are easily worn and broken under different pressure changes, requiring frequent replacement or maintenance, which affects the working efficiency of the equipment. To address this, this invention uses a feeding unit to feed the molecular sieves or activated carbon between the upper plate 14 and the lower plate 15 during operation. After feeding, the lower plate 15 is moved upward by the compaction unit, allowing the molecular sieves or activated carbon between the upper plate 14 and the lower plate 15 to be in a compacted state. This results in a stronger bond between the molecular sieve or activated carbon particles and a significantly improved compressive strength, making it suitable for frequent PSA operation environments. This avoids frequent replacement or maintenance of the adsorbent, thereby ensuring the working efficiency of the equipment.

[0032] The compaction unit includes a servo motor 2; the servo motor 2 is fixedly connected to the bottom end of the tower body 1; the output end of the servo motor 2 is provided with a first rotating shaft 21, and the first rotating shaft 21 extends into the tower body 1; a first through groove 22 is opened in the middle of the lower through plate 15, and an annular cylinder 23 is fixedly connected in the first through groove 22; the first rotating shaft 21 passes through a set of upper through plates 14 and an annular cylinder 23, and the first rotating shaft 21 and the upper through plate 14 are rotatably connected, and the first rotating shaft 21 and the annular cylinder 23 are connected by a screw and nut pair; during operation, after the adsorbent material is put between the upper through plate 14 and the lower through plate 15, the servo motor 2 works to make the first rotating shaft 21 rotate. Since the first rotating shaft 21 is connected to the annular cylinder 23 through the screw and nut pair, it will drive the annular cylinder 23 to move upward, thereby allowing the lower through plate 15 to perform a compaction operation on the adsorbent material.

[0033] The feeding and discharging unit includes a feeding trough 24 and a discharging trough 25; a set of feeding troughs 24 are provided on the side wall of the tower body 1, and the feeding troughs 24 are located below the upper through plate 14; a set of discharging troughs 25 are provided on the other side wall of the tower body 1, and the discharging troughs 25 are located below the feeding troughs 24.

[0034] A feed plate 26 is bolted to the feed trough 24; a discharge plate 27 is bolted to the discharge trough 25.

[0035] During operation, when the adsorbent material is replaced, the first rotating shaft 21 rotates, causing the annular cylinder 23 and the lower plate 15 to move downwards, positioning the lower plate 15 below the discharge trough 25. Then, the discharge plate 27 is opened to allow the loosened adsorbent material to be discharged. Simultaneously, when new material needs to be added, the feed plate 26 is opened, and material is fed into the feed trough 24. Then, the first rotating shaft 21 rotates, causing the annular cylinder 23 and the lower plate 15 to move upwards, compacting the added material.

[0036] The top of the lower plate 15 is provided with a first inclined surface 28, and the lowest end of the first inclined surface 28 is located on one side of the discharge trough 25. During operation, the first inclined surface 28 facilitates the material to fall from the discharge trough 25.

[0037] A fixing block 3 is fixedly connected to the inner wall of both sides of the tower body 1, and the fixing block 3 is located below the lower through plate 15; a stirring shaft 31 is provided on the fixing block 3, the top end of the stirring shaft 31 penetrates the lower through plate 15 and is located below the upper through plate 14.

[0038] The fixed block 3 has a first cavity 32; the bottom end of the stirring shaft 31 extends into the first cavity 32 and is fixedly connected to a first gear 33; a rack plate 34 is slidably connected in the first cavity 32; the rack plate 34 and the first gear 33 mesh with each other; a push plate 35 is fixedly connected to one side of the rack plate 34, and the push plate 35 is fixedly connected to the side wall of the first cavity 32 by a spring; one end of the rack plate 34 extends out of the fixed block 3 and is pushed by a power unit;

[0039] The power unit includes an arc-shaped block 36 and an elliptical block 37; one end of the rack plate 34 extends out of the fixing block 3 and is fixedly connected to the arc-shaped block 36; the first rotating shaft 21 is fixedly connected to the elliptical block 37 relative to the position of the arc-shaped block 36.

[0040] When the first rotating shaft 21 rotates, it will drive the elliptical block 37 to rotate, which in turn will push the arc block 36 to push, causing the rack plate 34 to drive the first gear 33 to rotate, which in turn will drive the stirring shaft 31 to rotate. This allows for easy up and down movement on the lower plate 15, enabling compaction and loosening operations, and also facilitating material feeding.

[0041] Working principle: Molecular sieves or activated carbon are fed between the upper plate 14 and the lower plate 15 through the feeding unit. After feeding, the lower plate 15 is moved upward by the compaction unit, so that the molecular sieves or activated carbon between the upper plate 14 and the lower plate 15 are in a compacted state. The bonding between the molecular sieves or activated carbon particles is stronger, and the compressive strength is significantly improved. This is suitable for the operation environment of frequent pressure swing adsorption, avoiding frequent replacement or maintenance of the adsorbent, thereby ensuring the working efficiency of the equipment. After the adsorbent material is fed between the upper plate 14 and the lower plate 15, the servo motor 2 works to make the first rotating shaft 21 rotate. The rotating shaft 21 is connected to the annular cylinder 23 via a lead screw and nut pair, which drives the annular cylinder 23 to move upward, thereby causing the lower plate 15 to compact the adsorbent material. When the adsorbent material is replaced, the first rotating shaft 21 rotates, causing the annular cylinder 23 and the lower plate 15 to move downward, so that the lower plate 15 is located below the discharge trough 25. Then the discharge plate 27 is opened to discharge the loosened adsorbent material. At the same time, when new material needs to be added, the feed plate 26 is opened, and the material is fed in through the feed trough 24. Then the first rotating shaft 21 rotates, causing the annular cylinder 23 and the lower plate 15 to move upward, compacting the added material.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel hydrogen purification device, characterized in that: The tower includes a tower body (1); an air outlet (11) is provided at the top of the tower body (1); an air inlet pipe (12) is installed on the bottom side wall of the tower body (1); a pressure relief pipe (13) is provided on the top side wall of the tower body (1); a set of upper through plates (14) are fixedly connected to the inner wall of the tower body (1); a set of lower through plates (15) are slidably connected to the inner wall of the tower body (1); the bottom end of the lower through plate (15) is located below the upper through plate (14); the lower through plate (15) moves up and down through a pressing unit; a material feeding and discharging unit is provided on the side wall of the tower body (1); and a set of support legs (16) are fixedly connected to the bottom of the tower body (1).

2. The novel hydrogen purification device according to claim 1, characterized in that: The pressing unit includes a servo motor (2); the bottom end of the tower body (1) is fixedly connected to the servo motor (2); the output end of the servo motor (2) is provided with a first rotating shaft (21), and the first rotating shaft (21) extends into the tower body (1); the middle part of the lower through plate (15) is provided with a first through groove (22), and an annular cylinder (23) is fixedly connected in the first through groove (22); the first rotating shaft (21) passes through a set of upper through plates (14) and an annular cylinder (23), and the first rotating shaft (21) and the upper through plate (14) are rotatably connected, and the first rotating shaft (21) and the annular cylinder (23) are connected by a screw and nut pair.

3. The novel hydrogen purification device according to claim 2, characterized in that: The feeding and discharging unit includes a feeding trough (24) and a discharging trough (25); a set of feeding troughs (24) is provided on the side wall of the tower body (1), and the feeding troughs (24) are located below the upper through plate (14); a set of discharging troughs (25) is provided on the other side wall of the tower body (1), and the discharging troughs (25) are located below the feeding troughs (24).

4. The novel hydrogen purification device according to claim 3, characterized in that: A feed plate (26) is bolted to the feed trough (24); a discharge plate (27) is bolted to the discharge trough (25).

5. A novel hydrogen purification device according to claim 4, characterized in that: The top of the lower plate (15) is provided with a first inclined surface (28), and the lowest end of the first inclined surface (28) is located on one side of the discharge trough (25). During operation, the first inclined surface (28) is provided so that the material can fall from the discharge trough (25) easily.

6. A novel hydrogen purification device according to claim 5, characterized in that: The inner walls on both sides of the tower body (1) are fixed with fixing blocks (3), and the fixing blocks (3) are located below the lower through plate (15); the fixing blocks (3) are provided with stirring shafts (31), the top of the stirring shafts (31) penetrates the lower through plate (15) and is located below the upper through plate (14).

7. A novel hydrogen purification device according to claim 6, characterized in that: The fixed block (3) has a first cavity (32) inside; the bottom end of the stirring shaft (31) extends into the first cavity (32) and is fixedly connected to the first gear (33); a rack plate (34) is slidably connected inside the first cavity (32); the rack plate (34) and the first gear (33) mesh with each other; a push plate (35) is fixedly connected to one side of the rack plate (34), and the push plate (35) is fixedly connected to the side wall of the first cavity (32) by a spring; one end of the rack plate (34) extends out of the fixed block (3) and is pushed by the power unit.

8. A novel hydrogen purification device according to claim 7, characterized in that: The power unit includes an arc-shaped block (36) and an elliptical block (37); one end of the rack plate (34) extends out of the fixed block (3) and is fixedly connected to the arc-shaped block (36); the first rotating shaft (21) is fixedly connected to the elliptical block (37) relative to the position of the arc-shaped block (36).

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