Underwater hydrogen production system
By designing the material tank, reactor, and intermediate tank in the underwater hydrogen production system, and utilizing hydrogen pressure to push active aluminum and automatically discharge slag, the problem of requiring external power equipment for slag liquid treatment in existing technologies has been solved, achieving energy savings and cost reduction.
Patent Information
- Application Number
- CN202511825157.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-05
- Publication Date
- 2026-01-23
AI Technical Summary
Existing underwater hydrogen production technologies require additional power equipment when processing slag and liquid, leading to increased energy consumption and higher costs.
An underwater hydrogen production system was designed, including a feed tank, a reactor, and an intermediate tank. The system uses hydrogen pressure as a power source to push active aluminum into the reactor and automatically discharges the slag liquid through the internal and external pressure difference, reducing dependence on external power sources.
It enables automatic feeding and slag removal without the need for an external power source, saving energy and reducing the system's energy consumption and cost.
Smart Images
Figure CN121372244A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of underwater hydrogen production, and particularly relates to an underwater hydrogen production system. BACKGROUND
[0002] In the field of underwater operation, continuous and stable energy supply is the core requirement to guarantee operation length and efficiency. The existing underwater hydrogen production technology mainly includes two technical solutions, namely, traditional hydrogen storage container and electrolytic hydrogen production system. However, slag liquid is inevitably produced in the process of hydrogen production. The above two technical solutions need to face the problem of discharging slag liquid, and they need to rely on additional power equipment to assist slag discharge when processing slag liquid, thereby seriously increasing energy consumption and leading to cost increase. SUMMARY
[0003] In order to overcome the shortcomings mentioned in the background art, the present application provides an underwater hydrogen production system.
[0004] An underwater hydrogen production system, characterized in that it comprises a material cabin and a reaction kettle, a discharge port of the material cabin is communicated with a feeding port of the reaction kettle, the reaction kettle is provided with a water inlet and a slag discharge port, the slag discharge port is located at the bottom of the reaction kettle, the feeding port, the water inlet and the slag discharge port of the reaction kettle are all provided with a switch assembly for controlling opening and closing thereof, an inner cavity of the material cabin is provided with a material pushing mechanism for enabling materials in the inner cavity to enter the reaction kettle, an intermediate cabin for storing hydrogen and driving the material pushing mechanism to move is arranged on the material cabin, the intermediate cabin is provided with a gas outlet communicated with the inner cavity of the material cabin, the material pushing mechanism is located between the discharge port of the material cabin and the gas outlet of the intermediate cabin, a gas outlet of the reaction kettle is communicated with a gas inlet of the intermediate cabin through a gas conveying pipe, and a hydrogen outlet of the intermediate cabin is communicated with a pipeline system for processing hydrogen.
[0005] As an embodiment, the material pushing mechanism comprises a piston plate, the piston plate is located between the discharge port of the material cabin and the gas outlet of the intermediate cabin, and the piston plate is in sealing sliding fit with the inner wall of the material cabin.
[0006] As an embodiment, the intermediate cabin comprises a gas storage cabin and a ballast water cabin for balancing mass loss, the gas outlet of the gas storage cabin is communicated with the inner cavity of the material cabin, the gas outlet of the gas storage cabin is provided with a control valve, the gas storage cabin is provided with a hydrogen outlet communicated with the pipeline system, and the ballast water cabin is provided with a water inlet valve for being communicated with seawater outside.
[0007] As an embodiment, the reaction kettle is provided with a water inlet cabin, a water inlet of the reaction kettle is communicated with a water outlet of the water inlet cabin, the water inlet cabin is provided with a water inlet for being communicated with seawater outside, the water inlet of the water inlet cabin is provided with a control valve, and an inner cavity of the water inlet cabin is communicated with a pressure regulating mechanism for pressure boosting.
[0008] As an embodiment, the gas conveying pipe is spirally wound around the axis of the material cabin on the outer wall of the material cabin.
[0009] As an embodiment, the slag discharge port of the reaction kettle is provided with a silencer for reducing the noise of slag discharge.
[0010] As an embodiment, the pipeline system comprises a multi-stage pressure reduction pipeline for multiple pressure reduction of hydrogen.
[0011] As an embodiment, a filter device for filtering hydrogen is connected to the multi-stage pressure reduction pipeline.
[0012] As an embodiment, the multi-stage pressure reduction pipeline comprises a first-stage pressure reduction pipeline and a second-stage pressure reduction pipeline, and the filter device is installed on the first-stage pressure reduction pipeline.
[0013] As an embodiment, the first-stage pressure reduction pipeline and the second-stage pressure reduction pipeline are both corrosion-resistant pipelines.
[0014] The beneficial effects of the present application are: The present application sets a material cabin, a reaction kettle and an intermediate cabin, sets a slag discharge port at the bottom of the reaction kettle, sets a water inlet for adding seawater on the reaction kettle, and the reaction kettle is communicated with the intermediate cabin through a gas conveying pipe, which can store the reacted hydrogen in the intermediate cabin, and the intermediate cabin can be used by the pushing mechanism to use the pressure of hydrogen as power to push the active aluminum in the material cabin into the reaction kettle, and after the control valve of the slag discharge port of the reaction kettle is closed, the pressure in the reaction kettle can be increased to use the pressure difference between the inside and outside to discharge the slag liquid in the reaction kettle from the slag discharge port, and the whole process can automatically feed and discharge without external power source, which effectively saves energy.
[0015] The other technical solutions of the present application can also achieve the following technical effects: By setting the piston plate between the discharge port of the material cabin and the gas outlet of the intermediate cabin, the piston plate is in sealing sliding cooperation with the inner wall of the material cabin, when it is needed to convey the active aluminum into the reaction kettle, the control valve of the gas outlet of the intermediate cabin is opened, the hydrogen in the intermediate cabin extrudes the piston plate in the material cabin, so that the piston plate pushes the active aluminum and the pressure oil into the reaction kettle, and the independent feeding can be realized without external pushing power source, thereby saving energy.
[0016] By setting the ballast water tank, the ballast water tank is provided with a water inlet valve for communicating with seawater outside, so that the ballast water tank can fill seawater into itself, and the seawater can be used to supplement the mass loss in the reaction, so as to ensure that the whole device is in a balanced state. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1A three-dimensional structural schematic diagram of an underwater hydrogen production system in an embodiment of the present application; Figure 2 A three-dimensional structural cross-sectional view of a material cabin and an intermediate cabin in an embodiment of the present application; Figure 3 A schematic diagram of a pipeline system in an embodiment of the present application.
[0018] In the figure, 1, a material cabin, 2, a reaction kettle, 3, an intermediate cabin, 301, a gas storage cabin, 302, a ballast water cabin, 4, a gas delivery pipe, 5, a water inlet cabin. DETAILED DESCRIPTION
[0019] The present application will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0020] An underwater hydrogen production system, such as Figure 1The device is shown, including the material bin 1 and the reaction kettle 2, the active aluminum is stored in the material bin 1 and the pressure oil, the active aluminum is soaked in the pressure oil for long-term preservation, the active aluminum is spherical structure, the discharge port of the material bin 1 is communicated with the feed port of the reaction kettle 2, the discharge port of the material bin 1 is provided with a control valve, the reaction kettle 2 provides a reaction place for the active aluminum and seawater, so that the active aluminum and seawater can react in the reaction kettle 2 to generate hydrogen, the reaction kettle 2 is provided with a water inlet and a slag discharge port, the slag discharge port is used for discharging the slag liquid after reaction, the slag discharge port is located at the bottom of the reaction kettle 2, the feed port, the water inlet and the slag discharge port of the reaction kettle 2 are all provided with a switch assembly for controlling the opening and closing of itself, and the switch assembly can be a control valve. The inner cavity of the material bin 1 is provided with a pushing mechanism, the pushing mechanism is mainly used for pushing the active aluminum from the material bin 1 into the reaction kettle 2, the material bin 1 is provided with an intermediate cabin 3 for storing hydrogen and providing a gas source for the pushing mechanism, the intermediate cabin 3 is provided with a gas outlet communicated with the inner cavity of the material bin 1, the gas outlet of the intermediate cabin 3 is provided with a control valve, the pushing mechanism is located between the discharge port of the material bin 1 and the gas outlet of the intermediate cabin 3, the gas outlet of the reaction kettle 2 is communicated with the gas inlet of the intermediate cabin 3 through a gas conveying pipe 4, the gas conveying pipe 4 is provided with a control valve, so that the hydrogen after reaction can be conveyed from the reaction kettle 2 to the intermediate cabin 3 through the gas conveying pipe 4 for storage, the intermediate cabin 3 can provide a gas source for the movement of the pushing mechanism, the pushing mechanism can be a structure that a cylinder and a push plate cooperate, the extension end of the cylinder is connected with the push plate, the cylinder and the push plate are both located inside the material bin 1, one side of the push plate is the active aluminum, and the other side is the extension end of the cylinder, when it is needed to convey the active aluminum, the control valve of the discharge port of the material bin 1 is opened, the extension end of the cylinder is extended outward to drive the push plate to push the active aluminum and the pressure oil, so that part of the active aluminum and the pressure oil enter the inside of the reaction kettle 2, after the active aluminum in the reaction kettle 2 reaches the required amount, the control valve of the material bin 1 and the cylinder are closed, the water inlet of the reaction kettle 2 is opened, the seawater enters the inside of the reaction kettle 2 to react with the active aluminum, when the control valve on the gas conveying pipe 4 is opened, the hydrogen generated by the reaction can be conveyed from the reaction kettle 2 to the intermediate cabin 3 through the gas conveying pipe 4 for storage.When the reaction is completed and the slag solution needs to be discharged, the control valve of the gas delivery pipe 4 is closed in the later stage of the reaction, so that the hydrogen in the reaction kettle 2 gradually increases, and the pressure in the reaction kettle 2 gradually increases. When the pressure in the reaction kettle 2 reaches the set pressure value (the set pressure value is greater than the external seawater pressure), the control valve of the slag discharge port is opened, and under the action of the pressure difference between the inside and outside of the reaction kettle 2, the hydrogen in the reaction kettle 2 discharges all the waste slag and waste liquid mixture of the aluminum slag, seawater and pressure guiding oil in the reaction kettle 2 from the slag discharge port. During the entire slag discharge stage, the external seawater cannot enter the reaction kettle 2 under the action of the pressure difference. After the slag discharge is completed, the control valve of the slag discharge port is closed, the hydrogen outlet of the intermediate cabin 3 is connected with the pipeline system for processing hydrogen, and the hydrogen outlet of the intermediate cabin 3 is provided with a control valve. When the fuel cell needs to use the hydrogen stored in the intermediate cabin 3, the control valve of the hydrogen outlet of the intermediate cabin 3 is opened, so that the hydrogen in the intermediate cabin 3 is delivered to the pipeline system, and the pipeline system processes the hydrogen into hydrogen of a quality that can be directly used by the fuel cell.
[0021] In an embodiment, as shown in Figure 1 and Figure 2 , the pushing mechanism includes a piston plate, which is located between the discharge port of the material cabin 1 and the gas outlet of the intermediate cabin 3. The active aluminum and the pressure guiding oil in the material cabin 1 are located between the discharge port of the material cabin 1 and the piston plate. The piston plate is in sealing sliding fit with the inner wall of the material cabin 1. When it is needed to deliver the active aluminum to the reaction kettle 2, the control valve of the gas outlet of the intermediate cabin 3 is opened, the hydrogen in the intermediate cabin 3 extrudes the piston plate in the material cabin 1, so that the piston plate pushes the active aluminum and the pressure guiding oil into the reaction kettle 2. Without an external pushing power source, the self-feeding can be realized, so that the energy is saved. When the active aluminum in the reaction kettle 2 reaches the required amount, the control valve of the gas outlet of the intermediate cabin 3 is closed, and the piston plate stops moving.
[0022] In an embodiment, as shown in Figure 2 , the intermediate cabin 3 includes a gas storage cabin 301 and a ballast water cabin 302 for balancing the mass loss. The ballast water cabin 302 is located outside the gas storage cabin 301. The gas outlet of the gas storage cabin 301 is connected with the inner cavity of the material cabin 1. The gas outlet of the gas storage cabin 301 is provided with a control valve. The gas storage cabin 301 is provided with a hydrogen outlet on which the control valve is installed. The hydrogen outlet of the gas storage cabin 301 is connected with the pipeline system. After the control valve of the gas outlet of the gas storage cabin 301 is opened, the hydrogen in the gas storage cabin 301 can be delivered to the material cabin 1, so that the hydrogen pushes the piston plate to move. The ballast water cabin 302 is provided with a water inlet valve for being connected with the external seawater. Since the internal overall mass is reduced when the slag solution is discharged, the water inlet valve of the ballast water cabin 302 is used to fill the seawater, so that the seawater supplements the mass loss caused by the reaction and the slag discharge, thereby ensuring that the overall mass of the device is in a balanced state.
[0023] In an embodiment, as shown in Figure 1As shown, the water inlet cabin 5 is provided on the reaction kettle 2, the water inlet cabin 5 is a spherical cylindrical structure, the material cabin 1, the reaction kettle 2 and the water inlet cabin 5 jointly constitute a combined member, the combined member is symmetrically provided with two groups and is symmetrically provided on both sides of the middle cabin 3, so that the overall structure is symmetrically distributed to keep the center of gravity balanced. The water inlet of the reaction kettle 2 is communicated with the water outlet of the water inlet cabin 5, the water inlet cabin 5 is provided with a water inlet for communicating with seawater outside, the water inlet of the water inlet cabin 5 is provided with a control valve, the inner cavity of the water inlet cabin 5 is communicated with a pressure regulating mechanism for pressure boosting, the pressure regulating mechanism can be an air compressor for communicating the outside air with the water inlet cabin 5, or other devices or structures capable of achieving the pressure boosting effect, when the pressure regulating mechanism is an air compressor, the air compressor injects gas into the water inlet cabin 5 through a pipeline, so that the internal pressure of the water inlet cabin 5 is increased, when it is needed to fill seawater into the reaction kettle 2, the control valve of the water inlet of the water inlet cabin 5 is opened, under the action of the internal and external pressure difference, seawater outside enters the inside of the water inlet cabin 5, then the control valve of the water inlet of the water inlet cabin 5 is closed, the control valve of the water inlet of the reaction kettle 2 is switched to the open state, so that the seawater in the water inlet cabin 5 gradually enters the reaction kettle 2, during this period, the air compressor starts to inject gas into the water inlet cabin 5, so that the internal pressure of the water inlet cabin 5 is increased, to ensure that the seawater in the water inlet cabin 5 can be completely pressed into the reaction kettle 2 under the action of the gas pressure, after the seawater in the water inlet cabin 5 enters the reaction kettle 2, the control valve is closed.
[0024] In an embodiment, as shown in Figure 1 and Figure 2 As shown, the gas delivery pipe 4 is spirally wound around the axis of the material cabin 1 on the outer wall of the material cabin 1, the hydrogen in the gas delivery pipe 4 is cooled by seawater outside, which improves the cooling efficiency and saves energy consumption.
[0025] In an embodiment, the slag discharge port of the reaction kettle 2 is provided with a silencing device for reducing the noise of slag discharge, the silencing device can be a soundproof board sleeved around the slag discharge port of the reaction kettle 2, and the soundproof board can be sleeved with sound-absorbing cotton.
[0026] In an embodiment, as shown in Figure 3 The pipeline system includes a multi-stage pressure reduction pipeline for reducing the pressure of hydrogen multiple times, the gas inlet of the multi-stage pressure reduction pipeline is communicated with the hydrogen outlet of the gas storage cabin 301, the hydrogen is subjected to multiple pressure reduction treatments through the multi-stage pressure reduction pipeline, so that the pressure of the hydrogen meets the requirements, and the hydrogen can be supplied to the fuel cell for use.
[0027] In an embodiment, the multi-stage pressure reduction pipeline is connected with a filtering device, the filtering device removes the solid impurities remaining in the hydrogen, and ensures that the hydrogen parameters meet the requirements for use of the fuel cell.
[0028] In an embodiment, the multi-stage pressure reduction pipeline comprises a first-stage pressure reduction pipeline and a second-stage pressure reduction pipeline in communication, the gas inlet of the first-stage pressure reduction pipeline is in communication with the hydrogen outlet of the gas storage cabin 301, and the filtering device is installed on the first-stage pressure reduction pipeline.
[0029] In an embodiment, the first-stage pressure reduction pipeline and the second-stage pressure reduction pipeline are both corrosion-resistant pipelines, which can improve the service life of the pressure reduction pipeline.
[0030] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An underwater hydrogen production system, characterized in that, The reactor includes a material hopper (1) and a reactor (2). The outlet of the material hopper (1) is connected to the inlet of the reactor (2). The reactor (2) is provided with a water inlet and a slag discharge outlet. The slag discharge outlet is located at the bottom of the reactor (2). The inlet, water inlet, and slag discharge outlet of the reactor (2) are all provided with a switch assembly for controlling their opening and closing. The inner cavity of the material hopper (1) is provided with a pushing mechanism for the material inside to enter the reactor (2). 1) An intermediate chamber (3) is provided on the upper part for storing hydrogen and driving the pusher mechanism. The intermediate chamber (3) is provided with an outlet that communicates with the inner cavity of the material chamber (1). The pusher mechanism is located between the outlet of the material chamber (1) and the outlet of the intermediate chamber (3). The outlet of the reactor (2) is connected to the inlet of the intermediate chamber (3) through a gas delivery pipe (4). The hydrogen outlet of the intermediate chamber (3) is connected to a pipeline system for processing hydrogen.
2. The underwater hydrogen production system according to claim 1, characterized in that, The pushing mechanism includes a piston plate, which is located between the discharge port of the material hopper (1) and the air outlet of the intermediate chamber (3). The piston plate is in a sealed sliding fit with the inner wall of the material hopper (1).
3. The underwater hydrogen production system according to claim 1, characterized in that, The intermediate tank (3) includes a gas storage tank (301) and a ballast water tank (302) for balancing mass loss. The gas outlet of the gas storage tank (301) is connected to the inner cavity of the material tank (1). The gas outlet of the gas storage tank (301) is equipped with a control valve. The gas storage tank (301) is equipped with a hydrogen outlet connected to the pipeline system. The ballast water tank (302) is equipped with a water inlet valve for connecting to the outside seawater.
4. The underwater hydrogen production system according to claim 1, characterized in that, The reactor (2) is provided with a water inlet chamber (5), the water inlet of the reactor (2) is connected to the water outlet of the water inlet chamber (5), the water inlet chamber (5) is provided with a water inlet for connecting with the outside seawater, the water inlet of the water inlet chamber (5) is provided with a control valve, and the inner cavity of the water inlet chamber (5) is connected to a pressure regulating mechanism for pressurization.
5. The underwater hydrogen production system according to claim 1, characterized in that, The gas delivery pipe (4) is spirally coiled around the outer wall of the hopper (1) around its axis.
6. The underwater hydrogen production system according to claim 1, characterized in that, The slag discharge port of the reactor (2) is equipped with a silencing device to reduce slag discharge noise.
7. The underwater hydrogen production system according to claim 1, characterized in that, The piping system includes multi-stage depressurization pipelines for repeatedly depressurizing hydrogen.
8. The underwater hydrogen production system according to claim 7, characterized in that, The multi-stage pressure reducing pipeline is connected to a filtration device for filtering hydrogen.
9. The underwater hydrogen production system according to claim 8, characterized in that, The multi-stage pressure reducing pipeline includes a primary pressure reducing pipe and a secondary pressure reducing pipe, and the filter device is installed on the primary pressure reducing pipe.
10. An underwater hydrogen production system according to claim 9, characterized in that, Both the primary pressure reducing pipe and the secondary pressure reducing pipe are corrosion-resistant pipes.