Hydrogen purification equipment

Abstract

The utility model relates to the technical field of hydrogen purification, in particular to hydrogen purification equipment. The dehumidification device comprises a dehumidification tank, a drying agent particle storage box, an electric push rod and a plurality of partition plates. The multiple partition plates are arranged on the inner side of the dehumidification tank, drying agent particle storage cavities are formed in the partition plates, upper sealing plates and lower sealing plates are arranged at the upper ends and the lower ends of the drying agent particle storage cavities correspondingly, filter screen mounting holes are formed in the partition plates, stainless steel filter screens are mounted on the inner sides of the filter screen mounting holes, and through holes are formed in the partition plates; the drying agent particle storage box is arranged above the dehumidification tank; the electric push rod is installed on the drying agent particle storage box, a lifting plate is connected to an output shaft of the electric push rod, and connecting rods are connected between the lifting plate and the multiple upper sealing plates. According to the technical scheme, the purpose of rapidly replacing the drying agent particles can be achieved without disassembling the partition plates, manual participation is not needed in the replacement work, and the advantage of being high in automation degree is achieved.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen purification technology, and in particular to a hydrogen purification device. Background Technology

[0002] Hydrogen purification refers to the general term for methods that remove impurities from hydrogen gas using physical or chemical methods. It's the process of purifying or removing impurities from substances, as learned in chemistry class. Both physical and chemical methods can be used.

[0003] After initial treatment, hydrogen still contains a certain amount of oxygen and water vapor. When the oxygen in the hydrogen undergoes a catalytic reaction with a catalyst, a catalytic reduction reaction occurs, generating water vapor and increasing the water vapor content in the hydrogen. Water vapor is usually removed by adsorption using adsorbents (desiccant granules) or dehumidifying plates. When the adsorbent reaches saturation with water vapor, its absorption efficiency decreases. When using desiccant materials, the saturated material needs to be manually removed before installing or filling with new material, which is a rather cumbersome operation. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a hydrogen purification device.

[0005] The technical solution of this utility model is a hydrogen purification device, including a dehumidification tank, a desiccant granule storage box, an electric push rod, and multiple partitions;

[0006] The dehumidifier tank has a hydrogen inlet pipe and a hydrogen outlet pipe connected to both ends, and both are equipped with solenoid valves. Multiple baffles are located inside the dehumidifier tank, extending through the bottom. Each baffle has a desiccant granule storage chamber extending from its top to bottom, filled with desiccant granules. Upper and lower sealing plates are located at the top and bottom of each storage chamber, connected by a vertical rod. A filter screen installation hole, communicating with the desiccant granule storage chamber, is located on the side of the baffle adjacent to the hydrogen inlet pipe. A stainless steel filter screen is installed inside the filter screen installation hole. The baffle also has through holes. A desiccant granule storage box is located above the dehumidifier tank, filled with desiccant granules. Multiple discharge holes, each communicating with one of the storage chambers, are located at the bottom of the storage box. An electric push rod is mounted on the storage box, with a lifting plate connected to its output shaft. Connecting rods connect the lifting plate to each of the upper sealing plates.

[0007] Preferably, a cooling chamber is provided on the partition, and multiple horizontal plates are provided inside the cooling chamber. The inner cavity of the cooling chamber is divided into a snake-shaped cooling channel by the multiple horizontal plates; a cooling device is installed at the bottom of the dehumidifier tank.

[0008] Preferably, the cooling device includes a cooling water tank and a pump. The cooling water tank is located at the bottom of the dehumidification tank, and a support is provided at the bottom of the cooling water tank. A cooler for cooling the water inside the cooling water tank is installed on the cooling water tank. The pump is installed on the cooling water tank. A first diverter and a second diverter are installed on the side wall of the dehumidification tank. The pump input end is connected to the inside of the cooling water tank, and the pump output end is connected to the first diverter. Multiple first branch pipes are connected to the first diverter, and the multiple first branch pipes are respectively connected to the upper part of multiple cooling chambers. The output end of the second diverter is connected to the inside of the cooling water tank, and the input end of the second diverter is connected to multiple second branch pipes, and the multiple second branch pipes are respectively connected to the lower part of multiple cooling chambers.

[0009] Preferably, a vibration motor is installed on the desiccant granule storage box.

[0010] Preferably, the two through holes on the two adjacent partitions are located at both ends inside the dehumidifier tank.

[0011] Preferably, sealing strips are installed on both the upper and lower sealing plates.

[0012] Compared with the prior art, this utility model has the following beneficial technical effects: The electric push rod is activated to drive the upper and lower sealing plates to move downwards synchronously. After the lower sealing plate moves to the position below the dehumidification tank, the desiccant particles are automatically discharged through the bottom opening of the desiccant particle storage chamber. Then, the electric push rod drives the upper and lower sealing plates to move upwards. When the upper sealing plate moves into the desiccant particle storage box, unused fresh desiccant particles inside the storage box slide down through the discharge hole into the desiccant particle storage chamber under gravity. Finally, the electric push rod is activated again to drive the upper and lower sealing plates to move slowly downwards until the upper and lower sealing plates seal the upper and lower ends of the desiccant particle storage chamber respectively. New desiccant particles are then refilled into the desiccant particle storage chamber. This achieves rapid replacement of desiccant particles without disassembling the partitions, and the replacement work requires no manual intervention, exhibiting a high degree of automation. Attached Figure Description

[0013] Figure 1 and Figure 2 All of these are schematic diagrams of the structure of this utility model.

[0014] Figure 3 This is a cross-sectional view of the dehumidifier tank and desiccant granule storage box in this utility model.

[0015] Figure 4 This is a cross-sectional view of the partition plate of this utility model.

[0016] Figure 5This is a schematic diagram of the structure of the present invention after the partition plate and the stainless steel filter screen are separated.

[0017] Reference numerals: 1. Dehumidifier tank; 2. Desiccant granule storage box; 201. Discharge hole; 3. Partition plate; 301. Desiccant granule storage cavity; 302. Cooling cavity; 303. Through hole; 304. Filter screen mounting hole; 41. Upper sealing plate; 42. Lower sealing plate; 5. Sealing strip; 6. Horizontal plate; 7. Electric push rod; 8. Lifting plate; 9. Connecting rod; 10. Cooling water tank; 11. Support; 12. Refrigerator; 13. Hydrogen inlet pipe; 14. Hydrogen outlet pipe; 15. Solenoid valve; 16. Stainless steel filter screen; 17. Pump; 18. First diverter; 19. Second diverter; 20. Vertical rod. Detailed Implementation

[0018] Example 1

[0019] like Figures 1-3 As shown, the hydrogen purification device proposed in this embodiment includes a dehumidification tank 1, a desiccant particle storage box 2, an electric push rod 7, and multiple partitions 3.

[0020] The dehumidifier 1 is connected to a hydrogen inlet pipe 13 and a hydrogen outlet pipe 14 at both ends, and a solenoid valve 15 is installed on both the hydrogen inlet pipe 13 and the hydrogen outlet pipe 14.

[0021] Multiple partitions 3 are disposed inside the dehumidification tank 1, penetrating the bottom of the dehumidification tank 1. Each partition 3 has a desiccant particle storage cavity 301 extending from its upper to lower ends. The desiccant particle storage cavity 301 is filled with desiccant particles. An upper sealing plate 41 and a lower sealing plate 42 are respectively disposed at the upper and lower ends of the desiccant particle storage cavity 301. Sealing strips 5 are installed on both the upper and lower sealing plates 41 and 42. The sealing strips 5 are used to improve the sealing effect of the desiccant particle storage cavity 301 and prevent hydrogen leakage during dehumidification. A vertical rod 20 connects the upper sealing plate 41 and the lower sealing plate 42. A filter screen mounting hole 304 is provided on the side of the upper part of the desiccant granule storage chamber 301, which is adjacent to the hydrogen inlet pipe 13. A stainless steel filter screen 16 is installed inside the filter screen mounting hole 304. In the initial state, the bottom end of the filter screen mounting hole 304 is located above the lower sealing plate 42. This setting allows a certain amount of water to accumulate at the bottom of the desiccant granule storage chamber 301. A through hole 303 is provided on the partition plate 3. The two through holes 303 on the two adjacent partition plates 3 are located at the two ends inside the dehumidification tank 1, respectively. This setting makes the gas flow path inside the dehumidification tank 1 serpentine, which helps to prolong the gas passage time.

[0022] The desiccant granule storage box 2 is located above the dehumidification tank 1. The desiccant granule storage box 2 is filled with desiccant granules. For convenient feeding, a feed pipe is provided on the desiccant granule storage box 2. A sealing cap is threaded onto the feed pipe. The bottom of the desiccant granule storage box 2 has multiple discharge holes 201 that are respectively connected to multiple desiccant granule storage chambers 301. An electric push rod 7 is installed on the desiccant granule storage box 2. A lifting plate 8 is connected to the output shaft of the electric push rod 7. A connecting rod 9 is connected between the lifting plate 8 and multiple upper sealing plates 41.

[0023] A vibration motor is installed on the desiccant granule storage box 2. Starting the vibration motor can accelerate the falling speed of the desiccant granules and also compact the desiccant granules in the desiccant granule storage cavity 301.

[0024] To improve the display effect, in this technical solution Figure 3 , Figure 4 as well as Figure 5 The images shown are all taken without desiccant particles being added.

[0025] Furthermore, the technical solution also includes a PLC controller, the purpose of which is to control the equipment.

[0026] It should be added that the hydrogen inlet pipe 13 is connected to the oxidation tank, which delivers oxygen-containing hydrogen to the oxidation tank. When the hydrogen passes through the catalyst inside the oxidation tank, the oxygen in the hydrogen comes into contact with the catalyst and forms a catalytic reduction reaction to generate water vapor. At the same time, the oxygen in the hydrogen generates a certain amount of heat during the oxidation-reduction reaction with the catalyst. Through the oxidation-reduction reaction between the catalyst and the oxygen in the hydrogen, the oxygen content in the hydrogen is reduced. The above is the prior art, so it is not described in detail or illustrated in this solution.

[0027] In this embodiment, the purified hydrogen enters the dehumidification tank 1 through the hydrogen inlet pipe 13. The water vapor contained in the gas is absorbed by the desiccant particles inside the desiccant particle storage cavity 301. The gas flows inside the dehumidification tank 1. Multiple baffles 3 divide the inner cavity of the dehumidification tank 1 into tortuous airflow channels, so that the gas can only pass through the dehumidification tank 1 along a serpentine path, which prolongs the gas passage time and further improves the dehumidification effect of hydrogen.

[0028] Once the desiccant particles inside the desiccant particle storage chamber 301 are saturated with moisture, they need to be replaced. It is important to note that during replacement, the solenoid valve 15 installed on the hydrogen inlet pipe 13 must be closed, and the electric push rod 7 must be activated to drive the upper sealing plate 41 and lower sealing plate 42 to move downwards synchronously. The desiccant particles inside the desiccant particle storage chamber 301 are pushed downwards. After the lower sealing plate 42 moves to a position below the dehumidification tank 1, the bottom opening of the desiccant particle storage chamber 301 is exposed, and the desiccant particles are then automatically discharged through the bottom opening of the desiccant particle storage chamber 301. After the desiccant particles inside the desiccant particle storage chamber 301 are completely discharged, the desiccant particles are then discharged through the designated... The electric push rod 7 drives the upper sealing plate 41 and the lower sealing plate 42 to move upward until the upper sealing plate 41 moves into the desiccant granule storage box 2. At this time, the unused new desiccant granules in the desiccant granule storage box 2 slide down into the desiccant granule storage cavity 301 under the action of gravity through the discharge hole 201. Then, the electric push rod 7 is started again to drive the upper sealing plate 41 and the lower sealing plate 42 to move downward slowly until the upper sealing plate 41 and the lower sealing plate 42 seal the upper and lower ends of the desiccant granule storage cavity 301 respectively. New desiccant granules are then refilled into the desiccant granule storage cavity 301, thus achieving the purpose of quickly replacing desiccant granules.

[0029] Example 2

[0030] like Figures 1-3As shown, this embodiment of the hydrogen purification equipment, compared to Embodiment 1, has a cooling chamber 302 on the partition 3. Multiple horizontal plates 6 are arranged inside the cooling chamber 302, dividing the inner cavity of the cooling chamber 302 into a snake-shaped cooling channel. A cooling device is installed at the bottom of the dehumidification tank 1, including a cooling water tank 10 and a pump 17. The cooling water tank 10 is located at the bottom of the dehumidification tank 1, and a support 11 is provided at the bottom of the cooling water tank 10. A cooler 12 for cooling the water inside the cooling water tank 10 is installed on the cooling water tank 10. The pump 17 is installed on the cooling water tank 10. A first diversion connector 18 and a second diversion connector 19 are installed on the side wall of the dehumidification tank 1. The input end of the pump 17 is connected to the inside of the cooling water tank 10, and the output end of the pump 17... The first branch pipe is connected to the first branch pipe 18, and the first branch pipe is connected to the upper part of the multiple cooling chambers 302 respectively. The output end of the second branch pipe 19 is connected to the inside of the cooling water tank 10, and the input end of the second branch pipe is connected to the multiple second branch pipes, which are connected to the lower part of the multiple cooling chambers 302 respectively. The cooler 12 is used to cool the water inside the cooling water tank 10. The pump 17 is started to pump the cooling water inside the cooling water tank 10 to the multiple cooling chambers 302. The cooling water flowing through the cooling chambers 302 can cool and reduce the temperature of the partition 3 and the desiccant particles, and absorb the heat generated by the oxidation-reduction reaction, thereby preventing the absorbed water vapor from being heated and evaporated again.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A hydrogen purification device, characterized in that, It includes a dehumidifier canister (1), a desiccant granule storage box (2), an electric push rod (7), and multiple partitions (3); The dehumidifier (1) is connected to a hydrogen inlet pipe (13) and a hydrogen outlet pipe (14) at both ends. Solenoid valves (15) are installed on both the hydrogen inlet pipe (13) and the hydrogen outlet pipe (14). Multiple partitions (3) are located inside the dehumidifier (1). The partitions (3) penetrate the bottom of the dehumidifier (1). A desiccant particle storage cavity (301) is opened on the partition (3) and penetrates its upper and lower ends. The desiccant particle storage cavity (301) is filled with desiccant particles. An upper sealing plate (41) and a lower sealing plate (42) are respectively provided at the upper and lower ends of the desiccant particle storage cavity (301). A vertical rod (20) is connected between the upper sealing plate (41) and the lower sealing plate (42). The partition (3) is adjacent to the hydrogen inlet pipe (13). A filter screen mounting hole (304) communicating with the desiccant particle storage chamber (301) is provided on one side. A stainless steel filter screen (16) is installed inside the filter screen mounting hole (304). A through hole (303) is provided on the partition plate (3). The desiccant particle storage box (2) is located above the dehumidification tank (1). The desiccant particle storage box (2) is filled with desiccant particles. The bottom of the desiccant particle storage box (2) is provided with multiple discharge holes (201) communicating with multiple desiccant particle storage chambers (301). An electric push rod (7) is installed on the desiccant particle storage box (2). A lifting plate (8) is connected to the output shaft of the electric push rod (7). A connecting rod (9) is connected between the lifting plate (8) and multiple upper sealing plates (41).

2. The hydrogen purification device according to claim 1, characterized in that, A cooling chamber (302) is provided on the partition (3), and multiple horizontal plates (6) are provided inside the cooling chamber (302). The inner cavity of the cooling chamber (302) is divided into a snake-shaped cooling channel by the multiple horizontal plates (6); a cooling device is installed at the bottom of the dehumidification tank (1).

3. The hydrogen purification device according to claim 2, characterized in that, The cooling device includes a cooling water tank (10) and a pump (17). The cooling water tank (10) is located at the bottom of the dehumidification tank (1). A bracket (11) is provided at the bottom of the cooling water tank (10). A cooler (12) for cooling the water inside the cooling water tank (10) is installed on the cooling water tank (10). The pump (17) is installed on the cooling water tank (10). A first diversion connector (18) and a second diversion connector (19) are installed on the side wall of the dehumidification tank (1). The input end of the pump (17) is connected to the cooling water tank (10). The water tank (10) is internally connected, the pump (17) output end is connected to the first diverter (18), the first diverter (18) is connected to multiple first branch pipes, the multiple first branch pipes are respectively connected to the upper part of multiple cooling chambers (302), the output end of the second diverter (19) is connected to the inside of the cooling water tank (10), the input end of the second diverter (19) is connected to multiple second branch pipes, the multiple second branch pipes are respectively connected to the lower part of multiple cooling chambers (302).

4. The hydrogen purification device according to claim 1, characterized in that, A vibration motor is installed on the desiccant granule storage box (2).

5. The hydrogen purification device according to claim 1, characterized in that, The two through holes (303) on the two adjacent partitions (3) are located at both ends inside the dehumidifier (1).

6. The hydrogen purification device according to claim 1, characterized in that, Sealing strips (5) are installed on both the upper sealing plate (41) and the lower sealing plate (42).

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