Purification device for hydrogen preparation

Abstract

According to the purification device for hydrogen preparation, after hydrogen is prepared, the hydrogen enters the filter box through the gas inlet pipe on the left side of the filter box, the hydrogen firstly passes through the first filter plate located in the left side of the filter box, and sodium hydroxide powder is filled in the first filter plate; at the moment, acid gas in the hydrogen can be absorbed and neutralized by sodium hydroxide, due to the fact that the multiple first filter plates are arranged, the hydrogen sequentially passes through the multiple first filter plates, the acid gas in the hydrogen is absorbed and neutralized for multiple times, and the purpose of removing the acid gas is achieved; then the hydrogen sequentially passes through a plurality of second filter plates, the second filter plates are filled with anhydrous calcium chloride, a part of water in the hydrogen can be absorbed by the anhydrous calcium chloride, then the hydrogen enters a heating pipe, a heating plate is started to heat the hydrogen, the residual water can be heated and condensed to fall into dripping holes, and then the water falls into a liquid collecting box from the dripping holes; the hydrogen is light and does not fall into the liquid collecting box, then the dried hydrogen flows out of the heating pipe to enter the next process, and after the liquid collecting box is filled with water, the liquid collecting valve is opened to collect and recover the water.

Description

Technical Field

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

[0002] In the process of producing hydrogen by electrolysis of water, the output hydrogen often contains moisture and a small amount of acidic gases, so the produced hydrogen needs to be purified. In this process, the hydrogen is usually purified by passing it through a filter screen, a water-absorbing sponge, and activated carbon in sequence.

[0003] However, during the processing, alkaline solutions are used to remove acidic gases, which can further increase the water content in the hydrogen. Therefore, this invention proposes a purification device for hydrogen production to solve the above problems. Utility Model Content

[0004] This invention provides a purification device for hydrogen production, which aims to solve the problems mentioned in the background art.

[0005] This invention is achieved as follows: a purification device for hydrogen production, comprising a filtration assembly and a heating assembly;

[0006] The filtration assembly includes a filter box, inside which are a first filter plate and a second filter plate. The first filter plate is filled with alkaline powder, and the second filter plate is filled with anhydrous calcium chloride.

[0007] The heating assembly includes a heating tube, a heating plate on the inner wall of the heating tube, multiple drip holes at the bottom of the heating tube and the heating plate, and a liquid collection tank on the bottom surface of the heating tube, with the drip holes connected to the liquid collection tank.

[0008] Preferably, there are multiple first filter plates, which are distributed at intervals and are located near the left side of the filter box.

[0009] Preferably, there are multiple second filter plates, which are distributed at intervals and are located near the right side of the filter box.

[0010] Preferably, an air inlet pipe is provided on the left side of the filter box.

[0011] Preferably, the liquid collection tank is equipped with a liquid collection valve at the bottom.

[0012] Preferably, the alkaline powder is sodium hydroxide powder.

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

[0014] Once the hydrogen is prepared, it enters the filter box through the inlet pipe on the left side. The hydrogen first passes through the first filter plate located inside the filter box on the left side. Since the first filter plate is filled with sodium hydroxide powder, the acidic gas inside the hydrogen is absorbed and neutralized by the sodium hydroxide. Because there are multiple first filter plates, the hydrogen passes through multiple first filter plates in sequence, and the acidic gas is absorbed and neutralized multiple times, achieving the purpose of removing the acidic gas. Then the hydrogen passes through multiple second filter plates in sequence. Since the second filter plates are filled with anhydrous calcium chloride, some of the moisture inside the hydrogen is absorbed by the anhydrous calcium chloride. Then the hydrogen enters the heating tube, and the heating plate is activated to heat the hydrogen. The remaining moisture is heated and condensed, falling into the drip hole, and then falling into the liquid collection tank. Because hydrogen is light, it generally does not fall into the liquid collection tank. Then the dry hydrogen flows out from the heating tube to enter the next process. When the liquid collection tank is full of water, the liquid collection valve is opened to collect and recover the water. Attached Figure Description

[0015] Figure 1 This is a front sectional view of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the filter assembly structure in this utility model;

[0017] Figure 3 This is a schematic diagram of the heating component structure in this utility model.

[0018] In the picture:

[0019] 1. Filter assembly; 11. Filter box; 12. Air inlet pipe; 13. First filter plate; 14. Second filter plate;

[0020] 2. Heating assembly; 21. Heating tube; 22. Heating plate; 23. Dropper hole; 24. Liquid collection tank; 25. Liquid collection valve. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0022] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0023] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] See also Figures 1 to 3 This utility model provides a technical solution: a purification device for hydrogen preparation, including a filtration assembly 1 and a heating assembly 2; the filtration assembly 1 includes a filtration box 11, inside which are provided a first filter plate 13 and a second filter plate 14, the first filter plate 13 is filled with alkaline powder, and the second filter plate 14 is filled with anhydrous calcium chloride; the heating assembly 2 includes a heating tube 21, the inner wall of the heating tube 21 is provided with a heating plate 22, the bottom of the heating tube 21 and the heating plate 22 are provided with a plurality of drip holes 23, the bottom surface of the heating tube 21 is provided with a liquid collection box 24, and the drip holes 23 are connected to the liquid collection box 24.

[0027] In this embodiment, after the hydrogen is prepared, it enters the filter box 11 through the inlet pipe 12 on the left side of the filter box 11. The hydrogen first passes through the first filter plate 13 located inside the filter box 11 on the left side. Since the first filter plate 13 is filled with sodium hydroxide powder, the acidic gas inside the hydrogen will be absorbed and neutralized by the sodium hydroxide. Since there are multiple first filter plates 13, the hydrogen passes through multiple first filter plates 13 in sequence, and the acidic gas is absorbed and neutralized multiple times, achieving the purpose of removing the acidic gas. Then the hydrogen will pass through multiple first filter plates 13 in sequence. The second filter plate 14 is filled with anhydrous calcium chloride. Some of the moisture inside the hydrogen gas will be absorbed by the anhydrous calcium chloride. Then the hydrogen gas will enter the heating tube 21, and the heating plate 22 will be activated to heat the hydrogen gas. The remaining moisture will be heated and condensed, falling into the drip hole 23, and then falling into the liquid collection tank 24. Since the hydrogen gas is relatively light, it generally will not fall into the liquid collection tank 24. Then the dry hydrogen gas will flow out from the heating tube 21 to enter the next process. When the liquid collection tank 24 is full of water, the liquid collection valve 25 is opened to collect and recover the water.

[0028] For further information, see Figure 2 Multiple first filter plates 13 are provided, and the multiple first filter plates 13 are distributed at intervals. The first filter plates 13 are close to the left side of the filter box 11.

[0029] In this embodiment, hydrogen enters the filter box 11 through the inlet pipe 12 on the left side of the filter box 11. The hydrogen first passes through the first filter plate 13 located inside the filter box 11 on the left side. Since the first filter plate 13 is filled with sodium hydroxide powder, the acidic gas inside the hydrogen will be absorbed and neutralized by the sodium hydroxide. Since there are multiple first filter plates 13, the hydrogen passes through multiple first filter plates 13 in sequence, and the acidic gas is absorbed and neutralized multiple times, thus achieving the purpose of removing the acidic gas.

[0030] For further information, see Figure 2 Multiple second filter plates 14 are provided, and the multiple second filter plates 14 are distributed at intervals. The second filter plates 14 are close to the right side of the filter box 11.

[0031] In this embodiment, the hydrogen gas neutralized by the acid gas will pass through multiple second filter plates 14 in sequence. Since the second filter plates 14 are filled with anhydrous calcium chloride, some of the moisture inside the hydrogen gas will be absorbed by the anhydrous calcium chloride.

[0032] For further information, see Figure 1 An air inlet pipe 12 is provided on the left side of the filter box 11.

[0033] In this embodiment, the air inlet pipe 12 is used to deliver the prepared hydrogen gas into the filter box 11.

[0034] For further information, see Figure 3The bottom of the liquid receiving tank 24 is equipped with a liquid receiving valve 25.

[0035] In this embodiment, opening the liquid collection valve 25 can collect the water inside the liquid collection tank 24.

[0036] Furthermore, the alkaline powder is sodium hydroxide powder.

[0037] In this embodiment, the alkaline powder is sodium hydroxide powder, which serves to neutralize acidic gases.

[0038] The working principle and usage process of this utility model are as follows: After hydrogen is prepared, it enters the filter box 11 through the inlet pipe 12 on the left side of the filter box 11. The hydrogen first passes through the first filter plate 13 located inside the filter box 11 on the left side. Since the first filter plate 13 is filled with sodium hydroxide powder, the acidic gas inside the hydrogen will be absorbed and neutralized by the sodium hydroxide. Since there are multiple first filter plates 13, the hydrogen passes through multiple first filter plates 13 in sequence, and the acidic gas is absorbed and neutralized multiple times, thus achieving the purpose of removing the acidic gas. Then the hydrogen will pass through... The hydrogen passes through multiple second filter plates 14. Since the second filter plates 14 are filled with anhydrous calcium chloride, some of the moisture inside the hydrogen is absorbed by the anhydrous calcium chloride. Then the hydrogen enters the heating tube 21, and the heating plate 22 is activated to heat the hydrogen. The remaining moisture is heated and condensed, falling into the drip hole 23, and then falling from the drip hole 23 into the liquid collection tank 24. Since the hydrogen is relatively light, it generally does not fall into the liquid collection tank 24. Then the dry hydrogen flows out from the heating tube 21 to enter the next process. When the liquid collection tank 24 is full of water, the liquid collection valve 25 is opened to collect and recover the water.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A purification apparatus for hydrogen production, characterized in that: It includes a filter assembly (1) and a heating assembly (2); The filter assembly (1) includes a filter box (11), inside which are a first filter plate (13) and a second filter plate (14). The first filter plate (13) is filled with alkaline powder, and the second filter plate (14) is filled with anhydrous calcium chloride. The heating assembly (2) includes a heating tube (21), a heating plate (22) is provided on the inner wall of the heating tube (21), a plurality of drip holes (23) are provided at the bottom of the heating tube (21) and the heating plate (22), a liquid collection tank (24) is provided on the bottom surface of the heating tube (21), and the drip holes (23) are connected to the liquid collection tank (24).

2. The purification apparatus for hydrogen production according to claim 1, characterized in that: The first filter plate (13) is provided in multiple ways, and the multiple first filter plates (13) are distributed at intervals. The first filter plate (13) is close to the left side of the filter box (11).

3. The purification apparatus for hydrogen production according to claim 1, characterized in that: The second filter plate (14) is provided in multiple ways, and the multiple second filter plates (14) are distributed at intervals. The second filter plates (14) are close to the right side of the filter box (11).

4. The purification apparatus for hydrogen production according to claim 1, characterized in that: An air inlet pipe (12) is provided on the left side of the filter box (11).

5. The purification apparatus for hydrogen production according to claim 1, characterized in that: The liquid collection tank (24) is equipped with a liquid collection valve (25) at the bottom.

6. The purification apparatus for hydrogen production according to claim 1, characterized in that: The alkaline powder is sodium hydroxide powder.

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