Hydrogen purification device

Abstract

The utility model discloses a hydrogen purification device, which relates to the technical field of hydrogen purification and comprises a purification cylinder for gas circulation, a gas inlet is arranged at the top of the purification cylinder, and a gas outlet is arranged at the bottom of the purification cylinder. A hydrogen separation membrane used for purifying hydrogen in gas in the gas circulation process is arranged on the purification barrel, a partition plate is fixedly installed in the purification barrel, a gas passing opening is formed in the side wall of the purification barrel in a penetrating mode, and an exhaust pipe communicated with the interior of the purification barrel is fixedly installed on the top wall of the purification barrel; an upper baffle is fixedly installed on the upper portion of the outer wall of the purification cylinder, a lower baffle is slidably connected to the lower portion of the outer wall of the purification cylinder, a sleeve is arranged between the upper baffle and the lower baffle, and the hydrogen separation membrane is installed between the inner wall of the sleeve and the outer wall of the purification cylinder; and the interior of the purification barrel is divided into an upper chamber and a lower chamber which are independent from each other through a partition plate. The hydrogen separation membrane solves the problem that the utilization efficiency of the hydrogen separation membrane is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydrogen purification, and specifically relates to a hydrogen purification device. Background Art

[0002] Hydrogen is a chemical element that ranks first in the periodic table. Its usual single element form is hydrogen gas, which is a colorless, tasteless, odorless, highly flammable gas composed of diatomic molecules. Hydrogen gas is the lightest gas.

[0003] Currently, most solid hydrogen storage materials and water are used to directly generate hydrogen. Due to the exothermic reaction, high-temperature water vapor is usually generated during the hydrogen generation process, so that the hydrogen contains impurities such as water vapor. These impurities will affect the purity of the hydrogen and require dehumidification, purification and other treatments. During the dehumidification process, the condensed water needs to be discharged. However, when draining water, water and hydrogen are usually discharged at the same time, reducing the efficiency of obtaining hydrogen.

[0004] The existing patent (application number: CN202320796319.4) proposes a hydrogen dehumidification and purification device, in which an arc-shaped partition is fixedly connected to the box body, and the arc-shaped partition divides the box body into a condensation chamber and a water collecting chamber. The condensation chamber is arranged above the water collecting chamber, and the top surface of the arc-shaped partition and the bottom of the water collecting chamber are both installed with drainage components; hydrogen and water vapor are spirally risen along the spiral plate, so that the hydrogen and water vapor are cooled in all directions, and the water is discharged through the drainage component, which effectively improves the efficiency of obtaining hydrogen.

[0005] The utilization efficiency of the hydrogen separation membrane used in the hydrogen purification device is low, which means that when the filtering effect of the hydrogen separation membrane drops to a certain level, the user usually needs to replace the hydrogen separation membrane as a whole. Although this can ensure the filtering effect of the hydrogen purification device, it also brings about a significant waste of resources.

[0006] In view of this, this application is hereby filed. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a hydrogen purification device to achieve the desired purpose.

[0008] In order to solve the above technical problems, the utility model provides a hydrogen purification device, including a purification cylinder for gas circulation, the purification cylinder is provided with a hydrogen separation membrane for purifying hydrogen in the gas during the gas circulation process, a partition is fixedly installed inside the purification cylinder, a gas outlet is penetrated through the side wall of the purification cylinder, an exhaust pipe connected with the interior is fixedly installed on the top wall of the purification cylinder, an upper baffle is fixedly installed on the upper part of the outer wall of the purification cylinder, a lower baffle is slidably connected to the lower part of the outer wall of the purification cylinder, a sleeve is provided between the upper baffle and the lower baffle, and the hydrogen separation membrane is installed between the inner wall of the sleeve and the outer wall of the purification cylinder.

[0009] Furthermore, an air inlet is provided at the top of the purification cylinder, and an exhaust port is provided at the bottom of the purification cylinder.

[0010] Furthermore, a threaded ring is threadedly connected to the outer wall of the lower part of the purification cylinder, the lower baffle is rotatably mounted on the top surface of the threaded ring, and a plurality of screw rods are equidistantly arranged on the outer wall of the threaded ring.

[0011] Furthermore, an annular groove is provided on one side of the lower baffle plate that is in contact with the outer wall of the purification cylinder, and a sealing ring is installed inside the annular groove, and the sealing ring is in contact with the outer wall of the purification cylinder.

[0012] Furthermore, an upper annular groove is fixedly installed on the top surface of the upper baffle plate, a lower annular groove is fixedly installed on the top surface of the lower baffle plate, the top end of the sleeve is inserted into the upper annular groove, and the bottom end of the sleeve is inserted into the lower annular groove.

[0013] Furthermore, the interior of the purification cylinder is divided into an upper chamber and a lower chamber that are independent of each other by a partition, and the air outlets are distributed on the side walls of the upper chamber and the lower chamber.

[0014] Furthermore, a conical sleeve and a mesh plate are fixedly installed inside the exhaust pipe, a support spring is fixedly installed on one side of the mesh plate, and a blocking ball is fixedly connected to one end of the support spring away from the mesh plate.

[0015] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0016] In the utility model, hydrogen enters the upper chamber inside the purification cylinder from the air inlet, the hydrogen in the upper chamber is discharged through the air outlet, and returns to the lower chamber after passing through the hydrogen separation membrane twice. Therefore, the upper and lower parts of the hydrogen separation membrane repeatedly purify the hydrogen twice, giving full play to the efficacy of the hydrogen separation membrane, with good purification effect, and finally the purified hydrogen is discharged from the exhaust port.

[0017] In the utility model, the threaded ring can be detached from the purification cylinder by rotating it, and the threaded ring can drive the lower baffle to be detached from the purification cylinder synchronously, so that the hydrogen separation membrane can be easily replaced, which is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:

[0019] Figure 1 This is a front view structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the internal structure of the exhaust pipe in the utility model.

[0023] Numbers in the figure: 1. purification cylinder; 2. air inlet; 3. upper baffle; 4. upper ring groove; 5. sleeve; 6. lower baffle; 7. lower ring groove; 8. threaded ring; 9. screw rod; 10. air outlet; 11. hydrogen separation membrane; 12. partition; 13. exhaust pipe; 14. conical sleeve; 15. mesh plate; 16. support spring; 17. sealing ball; 18. sealing ring; 19. exhaust port.

[0024] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figures 1 to 4 As shown, the utility model provides a hydrogen purification device.

[0029] Specifically, by Figure 1-4 It is provided, comprising a purification cylinder 1 for gas circulation, the top of the purification cylinder 1 is provided with an air inlet 2, the bottom of the purification cylinder 1 is provided with an exhaust port 19, the purification cylinder 1 is provided with a hydrogen separation membrane 11 for purifying hydrogen in the gas during the gas circulation process, a partition 12 is fixedly installed inside the purification cylinder 1, a gas outlet 10 is penetrated through the side wall of the purification cylinder 1, an exhaust pipe 13 connected with the interior thereof is fixedly installed on the top wall of the purification cylinder 1, an upper baffle 3 is fixedly installed on the upper part of the outer wall of the purification cylinder 1, a lower baffle 6 is slidably connected to the lower part of the outer wall of the purification cylinder 1, a sleeve 5 is provided between the upper baffle 3 and the lower baffle 6, the hydrogen separation membrane 11 is installed between the inner wall of the sleeve 5 and the outer wall of the purification cylinder 1, the interior of the purification cylinder 1 is divided into an upper chamber and a lower chamber independent of each other by the partition 12, and the gas outlets 10 are distributed on the side walls of the upper chamber and the lower chamber.

[0030] In the utility model, hydrogen enters the upper chamber inside the purification cylinder 1 from the air inlet 2, the hydrogen in the upper chamber is discharged through the air outlet 10, and returns to the lower chamber after passing through the hydrogen separation membrane 11 twice. Therefore, the upper and lower parts of the hydrogen separation membrane 11 repeatedly filter the hydrogen twice, giving full play to the efficacy of the hydrogen separation membrane 11, and achieving good purification effect. Finally, the purified hydrogen is discharged from the exhaust port 19.

[0031] Furthermore, as a specific implementation of the present invention, the present invention provides a hydrogen purification device.

[0032] Specifically, Figure 3It is shown that a threaded ring 8 is threadedly connected to the outer wall of the lower part of the purification cylinder 1, and the lower baffle 6 is rotatably installed on the top surface of the threaded ring 8. A plurality of screw rods 9 are arranged at equal distances on the outer wall of the threaded ring 8.

[0033] In the utility model, the threaded ring 8 can be detached from the purification cylinder 1 by rotating it, and the threaded ring 8 can drive the lower baffle 6 to be detached from the purification cylinder 1 synchronously, so that the hydrogen separation membrane 11 can be easily replaced, which is very convenient to use.

[0034] Furthermore, as another specific implementation of the present invention, the present invention provides a hydrogen purification device.

[0035] Specifically, Figure 3 It is shown that an annular groove is provided on one side of the lower baffle plate 6 which is in contact with the outer wall of the purification cylinder 1 , and a sealing ring 18 is installed inside the annular groove, and the sealing ring 18 is in contact with the outer wall of the purification cylinder 1 .

[0036] In the utility model, the sealing ring 18 is provided to achieve a sealing effect, thereby preventing gas from leaking from the connection between the lower baffle plate 6 and the purification cylinder 1 .

[0037] Furthermore, as a specific implementation of the present invention, the present invention provides a hydrogen purification device.

[0038] Specifically, Figure 3 It is shown that an upper annular groove 4 is fixedly installed on the top surface of the upper baffle plate 3, a lower annular groove 7 is fixedly installed on the top surface of the lower baffle plate 6, the top end of the sleeve 5 is inserted into the upper annular groove 4, and the bottom end of the sleeve 5 is inserted into the lower annular groove 7.

[0039] In the utility model, the upper annular groove 4 and the lower annular groove 7 are provided to improve the installation stability of the sleeve 5 .

[0040] Furthermore, as a specific implementation of the present invention, the present invention provides a hydrogen purification device.

[0041] Specifically, Figure 3-Figure 4 It is shown that a conical sleeve 14 and a mesh plate 15 are fixedly installed inside the exhaust pipe 13 , a support spring 16 is fixedly installed on one side of the mesh plate 15 , and a blocking ball 17 is fixedly connected to one end of the support spring 16 away from the mesh plate 15 .

[0042] In the utility model, when the gas pressure inside the exhaust pipe 13 is too high, the blocking ball 17 can be pushed away from the conical sleeve 14 . At this time, the support spring 16 is in a compressed state, and the gas can be discharged from the mesh plate 15 .

[0043] Working principle: Hydrogen enters the upper chamber inside the purification cylinder 1 from the air inlet 2, and the hydrogen in the upper chamber is discharged through the air outlet 10, and returns to the lower chamber after passing through the hydrogen separation membrane 11 twice. Therefore, the upper and lower parts of the hydrogen separation membrane 11 filter the hydrogen twice, giving full play to the effectiveness of the hydrogen separation membrane 11, and the purification effect is good. Finally, the purified hydrogen is discharged from the exhaust port 19, and it can be detached from the purification cylinder 1 by rotating the threaded ring 8. The threaded ring 8 can drive the lower baffle 6 to detach from the purification cylinder 1 synchronously, and then the hydrogen separation membrane 11 can be easily replaced, which is very convenient to use. Since the hydrogen separation membrane 11 has the characteristic of selective hydrogen passage, only hydrogen can pass through the hydrogen separation membrane 11, and other gases cannot pass through the hydrogen separation membrane 11 and can only be discharged from the exhaust pipe 13.

[0044] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. A hydrogen purification device, comprising a purification cylinder (1) through which gas can flow, wherein the purification cylinder (1) is provided with a hydrogen separation membrane (11) for purifying hydrogen in the gas during the gas flow process; characterized in that: A partition (12) is fixedly installed inside the purification cylinder (1), an air port (10) is opened through the side wall of the purification cylinder (1), an exhaust pipe (13) connected to the interior of the purification cylinder (1) is fixedly installed on the top wall of the purification cylinder (1), an upper baffle (3) is fixedly installed on the upper part of the outer wall of the purification cylinder (1), and a lower baffle (6) is slidably connected to the lower part of the outer wall of the purification cylinder (1), a sleeve (5) is arranged between the upper baffle (3) and the lower baffle (6), and the hydrogen separation membrane (11) is installed between the inner wall of the sleeve (5) and the outer wall of the purification cylinder (1).

2. A hydrogen purification device according to claim 1, characterized in that: The top of the purification cylinder (1) is provided with an air inlet (2), and the bottom of the purification cylinder (1) is provided with an air outlet (19).

3. A hydrogen purification device according to claim 1, characterized in that: A threaded ring (8) is threadedly connected to the outer wall of the lower part of the purification cylinder (1), and the lower baffle (6) is rotatably mounted on the top surface of the threaded ring (8). A plurality of screw rods (9) are equidistantly arranged on the outer wall of the threaded ring (8).

4. A hydrogen purification device according to claim 1, characterized in that: An annular groove is provided on the side of the lower baffle (6) that is in contact with the outer wall of the purification cylinder (1). A sealing ring (18) is installed inside the annular groove, and the sealing ring (18) is in contact with the outer wall of the purification cylinder (1).

5. A hydrogen purification device according to claim 1, characterized in that: An upper annular groove (4) is fixedly mounted on the top surface of the upper baffle plate (3), a lower annular groove (7) is fixedly mounted on the top surface of the lower baffle plate (6), the top end of the sleeve (5) is inserted into the upper annular groove (4), and the bottom end of the sleeve (5) is inserted into the lower annular groove (7).

6. A hydrogen purification device according to claim 1, characterized in that: The interior of the purification cylinder (1) is divided into an upper chamber and a lower chamber which are independent of each other by a partition (12), and the gas ports (10) are distributed on the side walls of the upper chamber and the lower chamber.

7. A hydrogen purification device according to claim 1, characterized in that: A conical sleeve (14) and a mesh plate (15) are fixedly installed inside the exhaust pipe (13); a support spring (16) is fixedly installed on one side of the mesh plate (15); and a blocking ball (17) is fixedly connected to one end of the support spring (16) away from the mesh plate (15).

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