Water replenishing mechanism for hydrogen production equipment

By introducing a filtration and disinfection box and a dual float level switch into the hydrogen production equipment, the problem of untimely water level detection was solved, water quality was improved, and the stable operation of the hydrogen production equipment was ensured.

CN224148193UActive Publication Date: 2026-04-21HEBEI FEITIAN PETROCHEMICAL GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI FEITIAN PETROCHEMICAL GRP CO LTD
Filing Date
2025-05-27
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing hydrogen production equipment cannot detect water levels in a timely manner, resulting in water levels that are too low or too high, affecting hydrogen production operations, and the water quality cannot meet high requirements.

Method used

A water replenishment mechanism including a filter and disinfection box was designed, comprising a disinfection chamber and a filtration chamber. The water level is detected by a dual float level switch, and the water quality is ensured by a disinfection lamp strip and an ultraviolet reflector. An overflow pipe is installed to prevent the water level from becoming too high.

Benefits of technology

It enables timely detection of water levels and improvement of water quality in hydrogen production equipment, meeting the high requirements of hydrogen production equipment and ensuring stable operation of hydrogen production.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a water replenishing mechanism for hydrogen production equipment, which comprises the hydrogen production equipment and a water storage device, and a filtering and disinfecting box is arranged between the hydrogen production equipment and the water storage device; the filtering and disinfecting box comprises a box body, the upper layer of the box body is a disinfecting chamber, the lower layer of the box body is a filtering chamber, and the filtering chamber is communicated with the disinfecting chamber through a connecting elbow; a double-floating-ball liquid level switch used for detecting high and low water levels in the hydrogen production equipment is arranged in the hydrogen production equipment; the filtering and disinfecting box with the filtering chamber and the disinfecting chamber is arranged for treating water, the quality of water entering the hydrogen production equipment is improved, the high requirement of the hydrogen production equipment for the water quality is met, meanwhile, the double-floating-ball liquid level switch is arranged for detecting the high water level and the low water level in the hydrogen production equipment, and the water quality is improved. Whether water needs to be supplemented is judged according to the internal water level state of the hydrogen production equipment, and the problem that the water level cannot be detected in time in the sealing operation process of the hydrogen production equipment is solved.
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Description

Technical Field

[0001] This utility model relates to the field of water replenishment equipment technology, specifically to a water replenishment mechanism for hydrogen production equipment. Background Technology

[0002] Hydrogen production by water electrolysis is a relatively convenient method. Direct current is passed through an electrolytic cell containing electrolyte, and water molecules undergo an electrochemical reaction at the electrodes, decomposing into hydrogen and oxygen. As the electrolysis reaction continues, the water in the electrolytic cell is constantly consumed. If water cannot be added to the electrolytic cell in time, it will affect the normal operation of hydrogen production.

[0003] Currently, most existing hydrogen production equipment operates in a sealed environment and relies heavily on manual water replenishment. This makes it impossible to monitor water levels in a timely manner, potentially leading to situations where water levels are too low to replenish promptly or too high to stop replenishing, thus affecting hydrogen production operations. Furthermore, the water used for replenishment is mostly recycled water, while some hydrogen production processes have higher water quality requirements. However, existing hydrogen production equipment is typically directly connected to a water storage tank, making it impossible to guarantee the required water quality. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a water replenishment mechanism for hydrogen production equipment, which can determine whether water needs to be replenished based on the water level inside the hydrogen production equipment, and ensure the quality of the water entering the hydrogen production equipment.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0006] A water replenishment mechanism for a hydrogen production device includes a hydrogen production device and a water storage tank. A filtration and disinfection box is installed between the hydrogen production device and the water storage tank. The filtration and disinfection box includes a body, with a disinfection chamber on the upper layer and a filtration chamber on the lower layer. The filtration chamber and the disinfection chamber are connected by a connecting bend. The filtration chamber is connected to the water storage tank via a first water replenishment pipeline, and the disinfection chamber is connected to the hydrogen production device via a second water replenishment pipeline. A water replenishment pump is installed on the second water replenishment pipeline. The hydrogen production device is equipped with a dual float level switch for detecting the high and low water levels inside the device.

[0007] The above-mentioned water replenishment mechanism for hydrogen production equipment includes a filter element inside the filter chamber that is connected to the first water replenishment pipeline. The outlet of the filter element is connected to the connecting bend pipe. There are three filter elements arranged horizontally side by side.

[0008] The above-mentioned water replenishment mechanism for hydrogen production equipment includes a U-shaped pipe installed in the disinfection chamber. The inlet end of the U-shaped pipe is connected to a connecting bend, and the outlet end of the U-shaped pipe passes through the side wall of the tank and is connected to a second water replenishment pipeline. The disinfection chamber is also equipped with a disinfection lamp strip for disinfecting the water in the U-shaped pipe.

[0009] In the aforementioned water replenishment mechanism for a hydrogen production device, the disinfection lamp strips are respectively installed at the top and bottom of the U-shaped tube, and the number of disinfection lamp strips is five, which are evenly distributed along the water outlet or water inlet direction of the U-shaped tube.

[0010] The aforementioned water replenishment mechanism for hydrogen production equipment includes a double-sided ultraviolet reflector plate located in the gap between the upper and lower layers of the U-shaped pipe. This reflector plate emits ultraviolet light from the disinfection lamp strip and disinfects the pipe.

[0011] The above-mentioned water replenishment mechanism for hydrogen production equipment includes an overflow pipe on one side of the upper part of the hydrogen production equipment, which discharges excess water after the dual float level switch fails.

[0012] The water supply mechanism for the aforementioned hydrogen production equipment also includes a mechanical level switch at the bottom of the water storage tank to detect the lowest water level inside the tank and ensure the safety of the water supply.

[0013] In the aforementioned water replenishment mechanism for a hydrogen production device, a partition plate is provided in the middle of the filtration and disinfection box to separate the disinfection chamber and the filtration chamber.

[0014] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0015] This invention provides a water replenishment mechanism for hydrogen production equipment. By setting up a filtration and disinfection box with a filtration chamber and a disinfection chamber to treat the water, the quality of the water entering the hydrogen production equipment is improved, meeting the high water quality requirements of the hydrogen production equipment. At the same time, by setting up a dual float level switch to detect the high and low water levels inside the hydrogen production equipment, water can be replenished in time through the water tank when the water level is low and water replenishment can be stopped when the water level is high. The mechanism determines whether water replenishment is needed based on the water level inside the hydrogen production equipment, solving the problem of not being able to detect the water level in time during the sealed operation of the hydrogen production equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the specific structure of the present utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0018] The components include: 1. Hydrogen production equipment, 2. Water storage tank, 3. Filtration and disinfection box, 4. Filtration chamber, 5. Disinfection chamber, 6. First water supply pipeline, 7. Second water supply pipeline, 8. Water supply pump, 9. Connecting bend, 10. Double float level switch, 11. Overflow pipe, 12. Divider plate, 13. Filter element, 14. U-shaped tube, 15. Disinfection lamp strip, and 16. Double-sided ultraviolet reflector. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] A water replenishment mechanism for a hydrogen production device, such as Figures 1 to 2 As shown, the device includes a hydrogen production unit 1 and a water storage tank 2. A filtration and disinfection box 3 is installed between the hydrogen production unit 1 and the water storage tank 2. The filtration and disinfection box 3 includes a box body, with a disinfection chamber 5 on the upper layer and a filtration chamber 4 on the lower layer. The filtration chamber 4 and the disinfection chamber 5 are connected by a connecting bend 9. The filtration chamber 4 is connected to the water storage tank 2 by a first water supply pipe 6. The disinfection chamber 5 is connected to the hydrogen production unit 1 by a second water supply pipe 7. A water supply pump 8 is installed on the second water supply pipe 7.

[0021] The filter disinfection box 3 has a partition plate 12 in the middle that separates the disinfection chamber 5 and the filter chamber 4.

[0022] The hydrogen production equipment 1 is equipped with a dual float level switch 10 for detecting the high and low water levels inside the hydrogen production equipment. The dual float level switch 10 is an existing product that can be purchased on the market. It mainly consists of a connecting rod and two floats with upper and lower parts of the connecting rod, which will not be described in detail here.

[0023] The filter chamber 4 is equipped with a filter element 13 that is connected to the first water supply pipe 6. The outlet of the filter element 13 is connected to the connecting bend pipe 9. There are three filter elements 13 arranged horizontally side by side. In other embodiments, the number of filter elements can be determined as needed.

[0024] A U-shaped pipe 14 is installed inside the disinfection chamber 5. The water inlet end of the U-shaped pipe 14 is connected to the connecting bend pipe 9, and the water outlet end of the U-shaped pipe 14 passes through the side wall of the tank and is connected to the second water supply pipe 7.

[0025] The disinfection chamber 5 is also equipped with disinfection lamp strips 15 for disinfecting the water in the U-shaped tube 14. The disinfection lamp strips 15 are respectively set at the top and bottom of the U-shaped tube 14. There are five disinfection lamp strips 15, which are evenly distributed along the water outlet or water inlet direction of the U-shaped tube 14.

[0026] A double-sided ultraviolet reflector 16 is installed in the gap between the upper and lower layers of pipes in the U-shaped tube 14 to emit ultraviolet rays emitted by the disinfection lamp strip 15 and disinfect the pipe.

[0027] The top and bottom surfaces of the double-sided ultraviolet reflector 16 are respectively coated with high-reflectivity nano-aluminum coatings, which can improve reflectivity and reduce energy loss.

[0028] An overflow pipe 11 is installed on one side of the upper part of the hydrogen production equipment 1. After the dual float level switch fails to recognize the water level, the water level in the hydrogen production equipment will gradually rise because the water supply to the water storage tank cannot be stopped. Therefore, by setting an overflow pipe, the excess water can be discharged to ensure the safety of the hydrogen production equipment.

[0029] The bottom of the water storage tank 2 is also equipped with a mechanical level switch to detect the lowest water level inside the water storage tank in order to ensure the safety of the water supply.

[0030] When in use, the water in the water tank 2 first passes through the filter element 13 in the filter chamber 4 to remove impurities from the water, and then passes through the disinfection lamp strip in the disinfection chamber to disinfect and eliminate microorganisms in the water. Due to the U-shaped tube bend in the disinfection chamber, the water in the U-shaped tube can be fully disinfected with the help of the disinfection lamp strip and the double-sided ultraviolet reflector, while improving the utilization efficiency of ultraviolet light.

[0031] Disinfected water is sent into the hydrogen production equipment through the second water supply pipeline. At the same time, the dual float level switch inside the hydrogen production equipment will detect the high and low water levels inside the equipment in order to control the water supply to the storage tank in a timely manner.

[0032] Specifically, when the upper float moves upward with the water flow to a high water level, it will disconnect the water supply pump circuit, stop the water supply pump, and the water storage tank will no longer supply water to the hydrogen production equipment. When the water in the hydrogen production equipment is continuously consumed, and the lower float moves downward with the water flow to a low water level, it will trigger the water supply pump to start, so that water can be supplied from the water storage tank to the hydrogen production equipment.

[0033] This invention provides a water replenishment mechanism for hydrogen production equipment. By setting up a filtration and disinfection box with a filtration chamber and a disinfection chamber to treat the water, the quality of the water entering the hydrogen production equipment is improved, meeting the high water quality requirements of the hydrogen production equipment. At the same time, by setting up a dual float level switch to detect the high and low water levels inside the hydrogen production equipment, water can be replenished in time through the water tank when the water level is low and water replenishment can be stopped when the water level is high. The mechanism determines whether water replenishment is needed based on the water level inside the hydrogen production equipment, solving the problem of not being able to detect the water level in time during the sealed operation of the hydrogen production equipment.

Claims

1. A water replenishing mechanism for a hydrogen production apparatus, comprising a hydrogen production apparatus (1) and a water reservoir (2), characterized by: A filtration and disinfection box (3) is provided between the hydrogen production equipment (1) and the water storage tank (2); the filtration and disinfection box (3) includes a box body, the upper layer of which is a disinfection chamber (5), and the lower layer of which is a filtration chamber (4). The filtration chamber (4) and the disinfection chamber (5) are connected by a connecting bend (9); the filtration chamber (4) is connected to the water storage tank (2) through a first water supply pipe (6), and the disinfection chamber (5) is connected to the hydrogen production equipment (1) through a second water supply pipe (7). A water supply pump (8) is provided on the second water supply pipe (7); a double float level switch (10) for detecting the high and low water levels inside the hydrogen production equipment (1) is provided inside the hydrogen production equipment (1).

2. The water replenishing mechanism for a hydrogen production apparatus according to claim 1, characterized by: The filter chamber (4) is equipped with a filter element (13) that is connected to the first water supply pipe (6). The outlet of the filter element (13) is connected to the connecting bend pipe (9). There are three filter elements (13) arranged horizontally side by side.

3. The water replenishing mechanism for a hydrogen production apparatus according to claim 1, characterized by: The disinfection chamber (5) is equipped with a U-shaped pipe (14), the water inlet end of the U-shaped pipe (14) is connected to the connecting bend pipe (9), and the water outlet end of the U-shaped pipe (14) passes through the side wall of the box and is connected to the second water supply pipe (7); the disinfection chamber (5) is also equipped with a disinfection lamp strip (15) for disinfecting the water in the U-shaped pipe (14).

4. The water replenishing mechanism for a hydrogen production apparatus according to claim 3, characterized by: The disinfection lamp strips (15) are respectively set at the top and bottom of the U-shaped tube (14). There are five disinfection lamp strips (15) and they are evenly distributed along the water outlet or water inlet direction of the U-shaped tube (14).

5. The water replenishing mechanism for a hydrogen production apparatus according to claim 4, characterized by: A double-sided ultraviolet reflector (16) is installed in the gap between the upper and lower layers of the U-shaped pipe (14) to emit ultraviolet rays emitted by the disinfection lamp strip (15) and disinfect the pipe.

6. The water replenishing mechanism for a hydrogen production apparatus according to claim 1, characterized by: The hydrogen production equipment (1) is provided with an overflow pipe (11) on one side of the upper part to discharge excess water after the double float level switch fails.

7. The water replenishing mechanism for a hydrogen generation apparatus according to claim 1, characterized by: The bottom of the water storage device (2) is also equipped with a mechanical liquid level switch to detect the lowest water level inside the water storage device in order to ensure the safety of water supply.

8. The water replenishing mechanism for a hydrogen generation apparatus according to claim 1, characterized by: The filter disinfection box (3) is provided with a partition plate (12) in the middle that separates the disinfection chamber (5) and the filter chamber (4).