Drying device for hydrogen preparation

Abstract

The drying device comprises a drying assembly, a first adsorption assembly, a second adsorption assembly, an ejection assembly, a heating assembly and a gas transmission assembly, and the drying assembly comprises a drying box, a limiting block arranged on the inner side of the drying box and an insertion hole formed in the top of the drying box. The first adsorption assembly and the second adsorption assembly are both inserted into the insertion holes, the ejection assembly comprises an air cylinder connected to the mounting base through screws and an ejection rod arranged at the top of the air cylinder, the heating assembly comprises a heating box arranged at the top of the drying box, and the air conveying assembly comprises an air conveying pipe arranged on the left side of the heating box and an exhaust pipe arranged on the right side of the heating box. Through the arrangement of the first adsorption assembly, the second adsorption assembly, the ejection assembly, the heating assembly and the gas transmission assembly, the effect of replacing the drying agent can be achieved under the condition that hydrogen drying is not affected, and meanwhile external air can be prevented from entering the drying box in the replacement process.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen preparation, in particular to a drying device for hydrogen preparation. Background Technique

[0002] Hydrogen preparation generally includes water electrolysis for hydrogen production, water gas method for hydrogen production, natural gas for hydrogen production, etc., and is widely used in industrial, energy, scientific research, medical fields, etc. When preparing hydrogen, in order to obtain dry hydrogen, a drying device will be used. The main purpose of the drying device is to remove water vapor in hydrogen to ensure the purity and quality of hydrogen. These devices usually work based on the principle of physical adsorption or chemical adsorption. However, the physical adsorption of the desiccant will reach a saturated state. At this time, the device needs to be stopped to replace the desiccant, which increases the burden on the user and greatly affects the drying efficiency and is not easy to use. Therefore, we propose a drying device for hydrogen preparation. Summary of the Utility Model

[0003] Therefore, the purpose of the utility model is to provide a drying device for hydrogen preparation. By setting a first adsorption component, a second adsorption component, an ejection component, a heating component and a gas transmission component, the effect of replacing the desiccant can be achieved without affecting the drying of hydrogen, and at the same time, external air can be avoided from entering the drying box during the replacement process.

[0004] To solve the above technical problems, according to one aspect of the utility model, the following technical solutions are provided:

[0005] A drying device for hydrogen preparation, comprising:

[0006] A drying component, including a drying box provided, a limiting block provided inside the drying box, a mounting seat provided at the bottom of the drying box, and a jack provided at the top of the drying box;

[0007] A first adsorption component, including an adsorption box inserted into the jack, silica gel placed in the adsorption box, and a wire mesh frame provided inside the adsorption box;

[0008] A second adsorption component, which has the same structure as the first adsorption component, and the second adsorption component is inserted into the jack;

[0009] An ejection component, including a cylinder screwed to the mounting seat and an ejection rod provided at the top of the cylinder;

[0010] A heating component, including a heating box provided at the top of the drying box and a box door hinged to the front end of the heating box;

[0011] The gas transmission component includes a gas transmission pipe arranged on the left side of the heating box, an exhaust pipe arranged on the right side of the heating box, and a second electric valve arranged on the gas transmission pipe and the exhaust pipe.

[0012] As a preferred solution of a drying device for hydrogen production according to the present invention, wherein connecting pipes are arranged at both ends of the drying box, and flange plates for installing pipes are arranged on both of the connecting pipes.

[0013] As a preferred solution of a drying device for hydrogen production according to the present invention, wherein there are two mounting seats, the two mounting seats are symmetrically arranged at the bottom of the drying box, and both of the mounting seats are of a hollow structure.

[0014] As a preferred solution of a drying device for hydrogen production according to the present invention, wherein the first adsorption component further includes a top cover hinged to the top of the adsorption box, a groove opened on the top of the top cover, and a stop block arranged inside the adsorption box.

[0015] As a preferred solution of a drying device for hydrogen production according to the present invention, wherein there are two wire frames, and the two wire frames are symmetrically distributed at both ends of the adsorption box.

[0016] As a preferred solution of a drying device for hydrogen production according to the present invention, wherein there are two ejection components, and the two ejection components correspond to the mounting seats one by one.

[0017] As a preferred solution of a drying device for hydrogen production according to the present invention, wherein the heating component further includes a card slot opened at the front end of the heating box and clamped with the box door, a handle arranged on the right side of the box door, an electric heater arranged on the inner wall of the heating box, and an oxygen sensor arranged inside the heating box.

[0018] As a preferred solution of a drying device for hydrogen production according to the present invention, it further includes fasteners, the fasteners include T-shaped columns arranged at the front end of the heating box and rotating blocks rotatably connected to the T-shaped columns, and there are two fasteners.

[0019] As a preferred solution of a drying device for hydrogen production according to the present invention, it further includes a moisture exhaust component, the moisture exhaust component includes an air inlet pipe arranged on the left side of the heating box, a moisture exhaust pipe arranged on the right side of the heating box, and a first electric valve arranged on the air inlet pipe and the moisture exhaust pipe, and the moisture exhaust pipe is fixedly connected to an exhaust fan.

[0020] As a preferred embodiment of a drying device for hydrogen production according to the present utility model, the gas inlet pipe and the exhaust pipe are symmetrically arranged on both sides of the heating box, and the gas inlet pipe is fixedly connected to a hydrogen delivery device.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing a first adsorption assembly, a second adsorption assembly, an ejection assembly, a heating assembly and a gas delivery assembly, the effect of replacing the desiccant can be achieved without affecting the drying of hydrogen. At the same time, during the replacement process, external air can be prevented from entering the drying box. When in use, the user can first drive the ejector rod to move downward by the cylinder of the ejection assembly, which can drive the unused first adsorption assembly or the second adsorption assembly to penetrate into the drying box. Then, drive the ejector rod to move upward by the cylinder of the other ejection assembly, which can eject the first adsorption assembly or the second adsorption assembly whose adsorption and drying have reached saturation. Thus, the drying adsorbent can be replaced without affecting the drying of hydrogen. At the same time, this process is carried out in the heating box of the heating assembly. Before replacement, the hydrogen delivery device can input hydrogen through the gas inlet pipe of the gas delivery assembly, and then the air can be completely discharged through the exhaust pipe. Therefore, the replacement can be carried out in a hydrogen environment to prevent external air from entering the drying box. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the present utility model will be described in detail below in conjunction with the drawings and specific embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0023] Figure 1 is a three-dimensional structure diagram of a drying device for hydrogen production according to the present utility model;

[0024] Figure 2 is a drying device for hydrogen production according to the present utility model Figure 1 a schematic structural diagram of the drying assembly, the heating assembly, the moisture exhaust assembly and the gas delivery assembly therein;

[0025] Figure 3 is a drying device for hydrogen production according to the present utility model Figure 1 a schematic structural diagram of the drying assembly, the heating assembly and the gas delivery assembly therein;

[0026] Figure 4 is a drying device for hydrogen production according to the present utility model Figure 1 a front view structural diagram of the drying assembly therein;

[0027] Figure 5 is a drying device for hydrogen production according to the present utility model Figure 4Internal schematic diagram of the drying oven;

[0028] Figure 6 This is a drying device for hydrogen production according to the present utility model Figure 1 Structural schematic diagram of the first adsorption assembly in it;

[0029] Figure 7 This is a drying device for hydrogen production according to the present utility model Figure 6 Structural schematic diagram of the adsorption box and the top cover in it;

[0030] Figure 8 This is a drying device for hydrogen production according to the present utility model Figure 1 Structural schematic diagram of the fastener in it.

[0031] In the figure: 100, drying assembly; 101, drying oven; 102, connecting pipe; 103, mounting seat; 104, limiting block; 105, jack; 200, first adsorption assembly; 201, adsorption box; 202, silica gel; 203, wire mesh; 204, top cover; 205, groove; 206, stop block; 300, second adsorption assembly; 400, ejecting assembly; 401, cylinder; 402, ejecting rod; 500, heating assembly; 501, heating box; 502, box door; 503, electric heater; 504, handle; 505, card slot; 506, oxygen sensor; 600, fastener; 601, T-shaped column; 602, rotating block; 700, moisture exhausting assembly; 701, intake pipe; 702, moisture exhausting pipe; 703, first electric valve; 800, gas transmission assembly; 801, gas transmission pipe; 802, exhaust pipe; 803, second electric valve. Specific embodiments

[0032] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given in conjunction with the accompanying drawings.

[0033] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0034] Secondly, the present utility model will be described in detail in conjunction with the schematic diagrams. When detailing the embodiments of the present utility model, for the sake of convenience of description, the cross-sectional views showing the device structure will be enlarged locally not in half scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0035] To make the objectives, technical solutions, and advantages of the present utility model clearer, the following will further describe in detail the implementation manners of the present utility model with reference to the accompanying drawings.

[0036] The present utility model provides a drying device for hydrogen production. By setting a first adsorption component, a second adsorption component, an ejection component, a heating component, and a gas transmission component, the effect of replacing the desiccant can be achieved without affecting the drying of hydrogen, and at the same time, external air can be prevented from entering the drying box during the replacement process.

[0037] Figures 1-8 Shown is a schematic diagram of the overall structure of an embodiment of a drying device for hydrogen production according to the present utility model. Please refer to Figures 1-8 In this embodiment, the main part of a drying device for hydrogen production includes: a drying component 100, a first adsorption component 200, a second adsorption component 300, an ejection component 400, a heating component 500, a fastener 600, and a gas transmission component 800.

[0038] The drying component 100 is used to convey hydrogen. Specifically, the drying component 100 includes a drying box 101 provided, a limiting block 104 provided inside the drying box 101, a mounting seat 103 provided at the bottom of the drying box 101, and a jack 105 opened at the top of the drying box 101. Connection pipes 102 are provided at both ends of the drying box 101. Flanges for installing pipelines are provided on both connection pipes 102. There are two mounting seats 103, and the two mounting seats 103 are symmetrically arranged at the bottom of the drying box 101. Both mounting seats 103 are of a hollow structure. During specific use, the two connection pipes 102 can be connected to the pipelines for conveying hydrogen to convey hydrogen. The two mounting seats 103 are used to install the ejection component 400 to eject the first adsorption component 200 or the second adsorption component 300. The limiting block 104 enables the first adsorption component 200 and the second adsorption component 300 to move only in the vertical direction for replacement. The jack 105 is used to install the first adsorption component 200 and the second adsorption component 300.

[0039] The first adsorption component 200 is used to dry and adsorb water vapor. Specifically, the first adsorption component 200 includes an adsorption box 201 inserted into the jack 105, silica gel 202 placed in the adsorption box 201, and a grid 203 provided inside the adsorption box 201. There are two grids 203, and the two grids 203 are symmetrically distributed at both ends of the adsorption box 201. During specific use, the hydrogen can pass through the silica gel 202 through the two grids 203, and the water can be adsorbed by the silica gel 202 during passing for drying.

[0040] The second adsorption component 300 is used to dry and adsorb water vapor. Specifically, the second adsorption component 300 has the same structure as the first adsorption component 200. The second adsorption component 300 is inserted into the jack 105. During specific use, the silica gel 202 inside the second adsorption component 300 can also dry hydrogen, so as to alternately use the first adsorption component 200 and the second adsorption component 300.

[0041] When the desiccant of the existing drying device reaches saturation in physical adsorption, the device needs to be stopped to replace the desiccant, which increases the burden on the user and greatly affects the drying efficiency. To solve this problem, an ejection component 400 is set up. Specifically, the ejection component 400 includes a cylinder 401 screwed to the mounting seat 103 and an ejection rod 402 arranged at the top of the cylinder 401. There are two ejection components 400, and the two ejection components 400 correspond to the mounting seat 103 one by one. During specific use, the user first controls the cylinder 401 of the ejection component 400 to drive the ejection rod 402 to move downward, which can drive the unused first adsorption component 200 or the second adsorption component 300 to be inserted into the drying box 101. Then, the cylinder 401 of the other ejection component 400 drives the ejection rod 402 to move upward, which can eject the first adsorption component 200 or the second adsorption component 300 whose adsorption and drying have reached saturation, so that the drying adsorbent can be replaced without affecting the drying of hydrogen.

[0042] The heating component 500 is used to seal the unused first adsorption component 200 or the second adsorption component 300. Specifically, the heating component 500 includes a heating box 501 arranged at the top of the drying box 101 and a box door 502 hinged to the front end of the heating box 501. During specific use, the unused first adsorption component 200 or the second adsorption component 300 can be placed at the jack 105 of the drying box 101 and abutted against the ejection rod 402 of the ejection component 400, so as to replace the first adsorption component 200 or the second adsorption component 300 whose adsorption has reached saturation.

[0043] The fastener 600 is used to fix the box door 502. Specifically, the fastener 600 includes a T-shaped column 601 arranged at the front end of the heating box 501 and a rotating block 602 rotatably connected to the T-shaped column 601. There are two fasteners 600. During specific use, the rotating block 602 can be rotated. When the rotating block 602 blocks the box door 502, the box door 502 can be fixed on the heating box 501 for sealing.

[0044] When replacing the first adsorption component 200 or the second adsorption component 300 whose adsorption has reached saturation, external air easily enters the drying oven 101, resulting in impure hydrogen. To solve this problem, a gas transmission component 800 is provided. Specifically, the gas transmission component 800 includes a gas transmission pipe 801 provided on the left side of the heating oven 501, an exhaust pipe 802 provided on the right side of the heating oven 501, and a second electric valve 803 provided on the gas transmission pipe 801 and the exhaust pipe 802. The gas transmission pipe 801 and the exhaust pipe 802 are symmetrically arranged on both sides of the heating oven 501. The gas transmission pipe 801 is fixedly connected to the hydrogen delivery device. During specific use, the second electric valve 803 can be controlled to open. After opening, hydrogen is input through the gas transmission pipe 801 of the gas transmission component 800, and then the air is completely discharged through the exhaust pipe 802, so that the replacement can be carried out in a hydrogen environment, avoiding external air from entering the drying oven 101.

[0045] Combined with Figures 1-8 , in a drying device for hydrogen production in this embodiment, during specific use, the user can first drive the ejecting rod 402 to move downward through the cylinder 401 of the ejecting component 400, which can drive the unused first adsorption component 200 or the second adsorption component 300 to penetrate into the drying oven 101. Then, the user can drive the ejecting rod 402 to move upward through the cylinder 401 of another ejecting component 400, which can eject the first adsorption component 200 or the second adsorption component 300 whose adsorption and drying have reached saturation. In this way, the drying adsorbent can be replaced without affecting hydrogen drying. At the same time, this process is carried out in the heating oven 501 of the heating component 500. Before replacement, the hydrogen delivery device can input hydrogen through the gas transmission pipe 801 of the gas transmission component 800, and then the air can be completely discharged through the exhaust pipe 802, so that the replacement can be carried out in a hydrogen environment, avoiding external air from entering the drying oven 101.

[0046] In the existing drying device, since the desiccant is inside and not easy to replace, a first adsorption component 200 is provided. Specifically, the first adsorption component 200 further includes a top cover 204 hinged to the top of the adsorption box 201, a groove 205 opened on the top of the top cover 204, and a stop block 206 provided inside the adsorption box 201. During specific use, the user can use a finger to hold the groove 205, and after holding it, rotate the top cover 204 to open the adsorption box 201. After opening, the silica gel 202 desiccant can be replaced for use.

[0047] The desiccant of the existing drying device can be heated to restore most of its adsorption capacity, but it needs to be taken out separately for heating, which is not easy to use. To solve this problem, a heating component 500 is provided. Specifically, the heating component 500 further includes a card slot 505 opened at the front end of the heating box 501 and clamped with the box door 502, a handle 504 provided on the right side of the box door 502, an electric heater 503 provided on the inner wall of the heating box 501, and an oxygen sensor 506 provided inside the heating box 501. During specific use, it can be heated by the electric heater 503, heated to a certain temperature, and after maintaining for a period of time, a part of the adsorption capacity of the silica gel 202 desiccant can be restored, so as to reuse the silica gel 202 desiccant, and the oxygen sensor 506 can detect the oxygen in the heating box 501 to understand whether the air in the heating box 501 is completely exhausted.

[0048] When the silica gel 202 is heated in the heating box 501, a large amount of moisture will be generated. Since the moisture cannot be quickly discharged, the silica gel 202 cannot well restore its adsorption capacity. To solve this problem, a moisture exhaust component 700 is provided. Specifically, it further includes a moisture exhaust component 700. The moisture exhaust component 700 includes an air inlet pipe 701 provided on the left side of the heating box 501, a moisture exhaust pipe 702 provided on the right side of the heating box 501, and a first electric valve 703 provided on the air inlet pipe 701 and the moisture exhaust pipe 702. The moisture exhaust pipe 702 is fixedly connected to the exhaust fan. During specific use, the first electric valve 703 can be controlled to open. After opening, the moisture in the heating box 501 can be extracted through the exhaust fan to restore the adsorption capacity of the silica gel 202.

[0049] Although the present invention has been described above with reference to the embodiments, however, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present invention can be combined with each other in any way. The exhaustive description of these combinations is not given in this specification only for the sake of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A drying device for hydrogen production, characterized in that, Comprising: A drying component (100), including a provided drying box (101), a limiting block (104) provided inside the drying box (101), a mounting seat (103) provided at the bottom of the drying box (101), and a jack (105) opened at the top of the drying box (101); A first adsorption component (200), including an adsorption box (201) inserted into the jack (105), silica gel (202) placed in the adsorption box (201), and a wire rack (203) provided inside the adsorption box (201); A second adsorption component (300), the second adsorption component (300) having the same structure as the first adsorption component (200), and the second adsorption component (300) is inserted into the jack (105); An ejection component (400), including a cylinder (401) screw - connected to the mounting seat (103) and an ejection rod (402) provided at the top of the cylinder (401); A heating component (500), including a heating box (501) provided at the top of the drying box (101) and a box door (502) hinge - connected to the front end of the heating box (501); An air - conveying component (800), including an air - conveying pipe (801) provided on the left side of the heating box (501), an exhaust pipe (802) provided on the right side of the heating box (501), and a second electric valve (803) provided on the air - conveying pipe (801) and the exhaust pipe (802).

2. The drying device for hydrogen production according to claim 1, characterized in that, Both ends of the drying box (101) are provided with connecting pipes (102), and both of the two connecting pipes (102) are provided with flanges for installing pipes.

3. The drying device for hydrogen production according to claim 2, characterized in that, There are two mounting seats (103), the two mounting seats (103) are symmetrically arranged at the bottom of the drying box (101), and both of the two mounting seats (103) are of hollow structure.

4. A drying device for hydrogen production according to claim 3, characterized in that, The first adsorption component (200) further includes a top cover (204) hinge - connected to the top of the adsorption box (201), a groove (205) opened at the top of the top cover (204), and a stop block (206) provided inside the adsorption box (201).

5. The drying device for hydrogen production according to claim 4, wherein, There are two wire racks (203), and the two wire racks (203) are symmetrically distributed at both ends of the adsorption box (201).

6. The drying device for hydrogen production according to claim 5, wherein, There are two ejection components (400), and the two ejection components (400) correspond to the mounting seats (103) one by one.

7. The drying device for hydrogen production according to claim 6, characterized in that, The heating component (500) further includes a card slot (505) opened at the front end of the heating box (501) and clamped with the box door (502), a handle (504) provided on the right side of the box door (502), an electric heater (503) provided on the inner wall of the heating box (501), and an oxygen sensor (506) provided inside the heating box (501).

8. The drying device for hydrogen production according to claim 7, characterized in that, Also included is a fastener (600), the fastener (600) includes a T - shaped column (601) provided at the front end of the heating box (501) and a rotating block (602) rotatably connected to the T - shaped column (601), and there are two fasteners (600).

9. The drying device for hydrogen production according to claim 8, characterized in that, It further includes a moisture exhaust component (700), and the moisture exhaust component (700) includes an intake pipe (701) disposed on the left side of the heating box (501), a moisture exhaust pipe (702) disposed on the right side of the heating box (501), and a first electric valve (703) disposed on the intake pipe (701) and the moisture exhaust pipe (702). The moisture exhaust pipe (702) is fixedly connected to an exhaust fan.

10. A drying device for hydrogen production according to claim 9, characterized in that, The gas delivery pipe (801) and the exhaust pipe (802) are symmetrically disposed on both sides of the heating box (501), and the gas delivery pipe (801) is fixedly connected to a hydrogen delivery device.

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