Drying machine for producing hydrogen by electrolyzing water

By designing a dryer in the process of producing hydrogen through water electrolysis, water is evaporated using a heating plate and collected by a guide plate, and then purified by a filter plate. This solves the problem of water waste and achieves high purity hydrogen and secondary utilization of water.

CN223530193UActive Publication Date: 2025-11-11HEFEI ZHONGHYDRO HAOYU TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423121576.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-11-11
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

Existing drying equipment fails to effectively recover and utilize the dried water during the electrolysis of water to produce hydrogen, resulting in a waste of water resources.

Method used

A dryer for hydrogen production by water electrolysis was designed, comprising a drying chamber, a heating plate, a guide plate, and a filter plate. The heating plate evaporates the water in the hydrogen, the guide plate collects the water and sends it into a collection chamber, and the filter plate uses activated carbon to further purify the hydrogen, thus achieving water recovery and hydrogen purification.

Benefits of technology

This technology enables high-purity drying of hydrogen and secondary utilization of water resources, reducing water waste, improving hydrogen purity, and saving water resources.

✦ Generated by Eureka AI based on patent content.

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Abstract

According to the drying machine for hydrogen production through water electrolysis, when prepared hydrogen needs to be dried, the heating plate is started firstly, then wet hydrogen enters the drying chamber through the air inlet, moisture in the hydrogen is evaporated under the heating action of the heating plate, the evaporated moisture is condensed into water drops to fall into the first flow guide plate, and the water drops fall into the second flow guide plate. Then the water flows to the second guide plate along with the first guide plate, and finally flows into the collecting box through the second guide plate; dried hydrogen enters the filter chamber through a gap between the first flow guide plate and the second flow guide plate, a filter plate is arranged in the filter chamber and close to the gas outlet, the hydrogen is discharged from the gas outlet 3 through the filter plate and enters the next procedure, and the filter plate is filled with activated carbon; according to the hydrogen drying device, hydrogen can be subjected to impurity filtration and further moisture adsorption treatment, so that the purity of hydrogen discharged from a gas outlet is improved, after drying is completed, a water outlet valve is opened, water in a collecting box can be recycled for secondary utilization, and water resources are saved.
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Description

Technical Field

[0001] This utility model belongs to the field of hydrogen production and drying technology, and in particular relates to a dryer for hydrogen production by water electrolysis. Background Technology

[0002] Electrolysis of water is an important method for hydrogen production, applicable to metal smelting, coal chemical industry, petroleum refining, wind and solar power generation and storage, fuel cells, and other fields. This process does not produce greenhouse gases and is considered a crucial method for hydrogen production. However, the hydrogen produced by water electrolysis generally contains small amounts of water vapor and electrolyte, requiring drying to remove these components and obtain high-purity hydrogen. Existing drying equipment directly discharges the water after hydrogen drying without collecting it for reuse, resulting in water waste. Therefore, this invention proposes a dryer for hydrogen production via water electrolysis to address these issues. Utility Model Content

[0003] This invention provides a dryer for hydrogen production through water electrolysis, aiming to solve the problems mentioned in the background art.

[0004] This invention is achieved as follows: a dryer for producing hydrogen by electrolysis of water, including a drying chamber;

[0005] The bottom of the drying chamber is equipped with a collection box;

[0006] The drying chamber has a heating plate on the top surface of its inner wall and a first guide plate and a second guide plate on its inner wall. Both the first guide plate and the second guide plate are inclined. The first guide plate guides water flow to the second guide plate, and the second guide plate guides water flow to the collection box. The first guide plate divides the drying chamber into a drying chamber and a filtration chamber.

[0007] Preferably, the outer wall of the drying chamber is provided with an air inlet and an air outlet, with the air inlet located above the air outlet.

[0008] Preferably, the drying chamber is located above the filtering chamber, and the heating plate is located inside the drying chamber.

[0009] Preferably, the filter chamber is provided with a filter plate near the air outlet.

[0010] Preferably, the filter plate is filled with activated carbon.

[0011] Preferably, a water outlet valve is installed at the bottom of the collection box.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] When the prepared hydrogen needs to be dried, the heating plate is activated first, and then the moistened hydrogen enters the drying chamber through the inlet. Under the heating action of the heating plate, the moisture in the hydrogen evaporates, and the evaporated moisture condenses into water droplets that fall into the first guide plate. Then, it flows with the first guide plate to the second guide plate, and finally flows into the collection box through the second guide plate. The dried hydrogen enters the filtration chamber through the gap between the first and second guide plates. In the filtration chamber, there is a filter plate near the outlet. The hydrogen passes through the filter plate and exits from the outlet to enter the next process. The filter plate is filled with activated carbon, which can filter impurities and further adsorb moisture from the hydrogen, thereby improving the purity of the hydrogen exiting from the outlet. After drying, the water outlet valve can be opened to recycle the water in the collection box for reuse, saving water resources. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0015] Figure 2 This is a front view of the overall structure of this utility model;

[0016] Figure 3 This is a front sectional view of the overall structure of this utility model.

[0017] In the picture:

[0018] 1. Drying oven; 2. Air inlet; 3. Air outlet; 4. Collection box; 5. Water outlet valve; 6. Heating plate; 7. First guide plate; 8. Second guide plate; 9. Filter plate. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] Please see Figures 1 to 3 This utility model provides a technical solution: a dryer for producing hydrogen by electrolysis of water, including a drying chamber 1; a collection box 4 is provided on the bottom surface of the drying chamber 1; a heating plate 6 is provided on the top surface of the inner wall of the drying chamber 1; a first guide plate 7 and a second guide plate 8 are provided on the inner wall of the drying chamber 1, both the first guide plate 7 and the second guide plate 8 are inclined, the first guide plate 7 guides the water flow to the second guide plate 8, the second guide plate 8 guides the water flow to the collection box 4, and the first guide plate 7 divides the drying chamber 1 into a drying chamber and a filtration chamber.

[0025] In this embodiment, end A of the first guide plate 7 is connected to the inner wall of the drying chamber 1 and close to the air inlet 2, while end B is close to the inner wall of the drying chamber 1 on the side away from the air inlet 2. End A of the first guide plate 7 is higher than end B, and the entire first guide plate 7 is inclined. End A of the second guide plate 8 is close to end B of the first guide plate 7 and connected to the inner wall of the drying chamber 1, while end B of the second guide plate 8 is connected to the collection box 4. (Refer to attached diagram) Figure 3 There is a gap between the first guide plate 7 and the second guide plate 8 to allow gas and water to flow through, and the first guide plate 7 divides the drying chamber 1 into a drying chamber and a filtration chamber;

[0026] When the prepared hydrogen needs to be dried, the heating plate 6 is activated first. Then, the moistened hydrogen enters the drying chamber through the inlet 2. Under the heating action of the heating plate 6, the moisture in the hydrogen evaporates. The evaporated moisture condenses into water droplets and falls into the first guide plate 7. Then, it flows with the first guide plate 7 to the second guide plate 8, and finally flows into the collection box 4 through the second guide plate 8. The dried hydrogen enters the filtration chamber through the gap between the first guide plate 7 and the second guide plate 8. In the filtration chamber, a filter plate 9 is provided near the outlet 3. The hydrogen will pass through the filter plate 9 and be discharged from the outlet 3 to the next process. The filter plate 9 is filled with activated carbon, which can filter impurities and further adsorb moisture in the hydrogen, thereby improving the purity of the hydrogen discharged from the outlet 3. After drying, the water outlet valve 5 can be opened to recycle the water in the collection box 4 for reuse, saving water resources.

[0027] For further details, please refer to Figure 2 The outer wall of the drying chamber 1 is provided with an air inlet 2 and an air outlet 3, with the air inlet 2 located above the air outlet 3.

[0028] In this embodiment, the air inlet 2 is located above the air outlet 3, which facilitates the drying of hydrogen and the collection of moisture.

[0029] For further details, please refer to Figure 3 The drying chamber is located above the filtration chamber, and there is a heating plate 6 inside the drying chamber.

[0030] In this embodiment, the drying chamber is located above the filtration chamber, and there is a heating plate 6 inside the drying chamber, wherein the function of the heating plate 6 is to heat and dry the humid hydrogen gas.

[0031] For further details, please refer to Figure 3 A filter plate 9 is installed in the filter chamber near the air outlet 3.

[0032] In this embodiment, the purpose of the filter plate 9 is to perform secondary absorption and filtration of impurities and slight moisture in the hydrogen gas.

[0033] Furthermore, the filter plate 9 is filled with activated carbon.

[0034] In this embodiment, activated carbon can absorb impurities in hydrogen gas and further absorb moisture.

[0035] For further details, please refer to Figure 2 The bottom of the collection box 4 is equipped with a water outlet valve 5.

[0036] In this embodiment, opening the water outlet valve 5 allows the water inside the collection tank 4 to be recycled and reused, thus saving water resources.

[0037] The working principle and usage process of this utility model are as follows: When it is necessary to dry the prepared hydrogen, the heating plate 6 is activated first, and then the moist hydrogen enters the drying chamber through the air inlet 2. Under the heating action of the heating plate 6, the moisture in the hydrogen evaporates, and the evaporated moisture condenses into water droplets that fall into the first guide plate 7. Then, it flows with the first guide plate 7 to the second guide plate 8, and finally flows into the collection box 4 through the second guide plate 8. The dried hydrogen enters the filtration chamber through the gap between the first guide plate 7 and the second guide plate 8. In the filtration chamber, a filter plate 9 is provided near the air outlet 3. The hydrogen will pass through the filter plate 9 and be discharged from the air outlet 3 to enter the next process. The filter plate 9 is filled with activated carbon, which can filter impurities and further adsorb moisture in the hydrogen, thereby improving the purity of the hydrogen discharged from the air outlet 3. After drying, the water outlet valve 5 can be opened to recycle the water in the collection box 4 for reuse, saving water resources.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dryer for hydrogen production by water electrolysis, characterized in that: Includes a drying oven (1); The bottom surface of the drying oven (1) is provided with a collection box (4); The drying chamber (1) has a heating plate (6) on the top surface of its inner wall. The drying chamber (1) has a first guide plate (7) and a second guide plate (8) on its inner wall. The first guide plate (7) and the second guide plate (8) are both inclined. The first guide plate (7) guides the water flow to the second guide plate (8), and the second guide plate (8) guides the water flow to the collection box (4). The first guide plate (7) divides the drying chamber (1) into a drying chamber and a filtration chamber.

2. A dryer for hydrogen production by water electrolysis according to claim 1, characterized in that: The drying chamber (1) has an air inlet (2) and an air outlet (3) on its outer wall, with the air inlet (2) located above the air outlet (3).

3. A dryer for hydrogen production by water electrolysis according to claim 1, characterized in that: The drying chamber is located above the filtration chamber, and the heating plate (6) is located inside the drying chamber.

4. A dryer for hydrogen production by water electrolysis according to claim 2, characterized in that: The filter chamber is provided with a filter plate (9) near the air outlet (3).

5. A dryer for hydrogen production by water electrolysis according to claim 4, characterized in that: The filter plate (9) is filled with activated carbon.

6. A dryer for hydrogen production by water electrolysis according to claim 1, characterized in that: A water outlet valve (5) is installed at the bottom of the collection box (4).