A device for the production and storage of high-quality hydrogen

Abstract

This invention discloses a device for preparing and storing high-quality hydrogen, including a hydrogen production unit, a drying unit, a control unit, and a hydrogen storage unit. A shut-off valve is installed on one of the pipelines and is electrically connected to the control equipment for regulating the on / off state and flow rate of oxygen delivery. This invention constructs a dual gas-liquid separation mechanism of "centrifugal force + gravity" and a self-cleaning system for the screen plate through components such as a servo motor, rotating rod, spiral blades, and corrugated screen plate. The rotating spiral blades apply a stable centrifugal force to the hydrogen flow, throwing fine water droplets against the container wall and guiding them out through a conical chamfer. The corrugated screen plate increases the contact area through its corrugated structure to achieve secondary interception. Simultaneously, the high-frequency vibration driven by a vibrating hammer and spring prevents droplet accumulation and blockage, effectively solving the shortcomings of traditional devices such as low efficiency of simple gravity sedimentation separation, easy filter clogging, and frequent shutdowns for maintenance.

Description

Technical Field

[0001] This invention relates to the field of hydrogen production technology, specifically to a device for the preparation and storage of high-quality hydrogen. Background Technology

[0002] Hydrogen energy, as a clean and efficient secondary energy carrier, has played an increasingly important role in the global energy structure transformation in recent years. Water electrolysis for hydrogen production has become one of the main technological routes for green hydrogen production due to its mature process, flexible operation, and effective coupling with renewable energy sources. Alkaline water electrolysis technology holds an important position in industrial hydrogen production due to its advantages such as low equipment cost and long service life. With the rapid growth in demand for high-purity hydrogen from fields such as hydrogen fuel cell vehicles, chemical synthesis, and metallurgical reduction, a highly efficient integrated system that combines hydrogen production, drying, and storage has become an urgent need for industry development. Especially in distributed hydrogen production applications, the miniaturization, integration, and intelligence of the equipment directly affect the economic viability and application promotion of hydrogen energy.

[0003] Currently available alkaline water electrolysis hydrogen production devices generally suffer from technical bottlenecks such as low gas-liquid separation efficiency and incomplete hydrogen drying. Traditional hydrogen separation equipment mostly uses static gravity separation, which is difficult to handle the fine bubbles and atomized water droplets generated during electrolysis. This results in a large amount of moisture entering the subsequent drying unit with the hydrogen, significantly increasing the drying load and reducing the lifespan of the molecular sieve adsorbent. In addition, the internal components of the separator in existing devices are fixed and singular, unable to actively promote water droplet coagulation and discharge, easily causing water accumulation inside the equipment and affecting the stable operation of the system. In the hydrogen storage stage, due to incomplete front-end treatment, wet hydrogen easily forms condensate at the pipeline valves after entering the storage tank, which not only reduces the purity of the stored hydrogen but also accelerates the corrosion of metal components, increasing safety hazards. Existing technologies lack a highly efficient integrated system for hydrogen production and storage that can dynamically adjust and adapt to changes in operating conditions, making it difficult to meet the demands of the modern hydrogen energy industry for high-purity, high-efficiency, and high-reliability hydrogen production equipment. Therefore, this invention proposes a high-quality hydrogen production and storage device to solve the above problems. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies such as low gas-liquid separation efficiency, frequent maintenance, and unstable purity, this invention utilizes control equipment for overall regulation and combines the synergistic effects of spiral blades, vibrating hammers, and corrugated mesh plates to achieve efficient hydrogen processing throughout the entire process. This avoids issues such as droplet escape, filter clogging, and downtime maintenance, thereby improving hydrogen purity and system stability.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a device for preparing and storing high-quality hydrogen, comprising a hydrogen production unit, a drying unit, a control unit, and a hydrogen storage unit. The hydrogen production unit includes a water electrolysis cell, an oxygen separation unit, and a hydrogen separation unit. The water electrolysis cell uses alkaline water electrolysis technology to produce hydrogen and is connected to the oxygen separation unit via pipeline one and to the hydrogen separation unit via pipeline two. A shut-off valve is installed on pipeline one and is electrically connected to the control unit for regulating the on / off state and flow rate of oxygen delivery. The hydrogen production rate of the water electrolysis cell ranges from 0 to 100 Nm. 3 The system operates at a pressure range of 0-3 MPa, with hydrogen undergoing preliminary gas-water separation via gravity in the hydrogen separation device. The drying unit comprises a hydrogen separation device, an adsorption tower, and a separator. The hydrogen separation device is connected to the adsorption tower via pipeline three, which is equipped with a one-way valve and a throttle valve. The one-way valve is positioned close to the hydrogen separation device to prevent backflow of gas within the adsorption tower, while the throttle valve is electrically connected to a control device to precisely regulate the flow rate of hydrogen entering the adsorption tower. The adsorption tower is connected to the separator via pipeline four, and the adsorption tower dries hydrogen using molecular adsorption. The hydrogen storage unit includes a storage tank, which is connected to the separator via pipeline five. The storage capacity of the storage tank ranges from 0 to 500 Nm³. 3 The control unit includes a control device, which is a rectifier control cabinet and supporting instruments, and is installed on the side wall of the water electrolysis tank equipment. It is used to control the operation of each unit of the device and the operation of the valves mentioned above.

[0006] Preferably, a drain pipe is installed at the lower end of the hydrogen separation device, a rotating rod is rotatably connected inside the hydrogen separation device, a spiral blade is fixedly connected to the outer wall of the rotating rod, and a conical chamfer is integrally formed at the edge of the spiral blade, with the chamfer pointing upwards.

[0007] Preferably, a positioning sleeve and a positioning plate are fixedly connected to the outer wall of the rotating rod, a corrugated mesh plate is slidably connected to the outer wall of the positioning sleeve, and multiple sets of connecting rods are rotatably connected to the outer wall of the positioning plate. The outer wall of each set of connecting rods is L-shaped, and a vibrating hammer is fixedly connected to the end of each set of connecting rods. The end of the vibrating hammer is in contact with the end face of the corrugated mesh plate.

[0008] Preferably, a sliding plate is slidably connected to the outer wall of the rotating rod, and multiple sets of rotating rods are arranged around the outer circumference of the sliding plate, with their number and position corresponding one-to-one with the connecting rods. The other end of each set of rotating rods is rotatably connected to its adjacent connecting rod, and each set of rotating rods is rotatably connected to the sliding plate.

[0009] Preferably, the outer wall of the rotating rod is fitted with two sets of limiting rings, and two sets of threaded sections are opened between the two sets of limiting rings. The threaded sections of the two sets of threaded sections have opposite thread directions, and the sliding plate is fitted and installed on the outer wall of the threaded section. The top of the hydrogen separation device is fixedly connected to a limiting rod, and the sliding plate is slidably connected to the outer wall of the limiting rod.

[0010] Preferably, the outer wall of the positioning sleeve has multiple sets of sliding grooves, and a sliding rod is fixedly connected to the bottom of each set of sliding grooves. A slider is slidably connected to the outer wall of the sliding rod, and the slider is fixedly connected to the inner wall of the corrugated mesh plate.

[0011] Preferably, each set of slide rods is fitted with a spring on its outer wall, and the two ends of the spring are fixedly connected to the slider and the bottom of the slide groove, respectively.

[0012] Preferably, a servo motor is fixedly connected to the end face of the hydrogen separation device, and the output shaft of the servo motor is fixedly connected to the rotating rod coaxially.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention provides a device for the preparation and storage of high-quality hydrogen, which has the following beneficial effects: 1. This invention constructs a dual gas-liquid separation mechanism of "centrifugal force + gravity" and a self-cleaning system for the screen plate by using components such as a servo motor, rotating rod, spiral blades, and corrugated screen plate. The rotation of the spiral blades applies a stable centrifugal force to the hydrogen gas flow, throwing fine water droplets toward the container wall and guiding them out through the conical chamfer. The corrugated screen plate increases the contact area through its corrugated structure to achieve secondary interception. At the same time, the high-frequency vibration driven by the vibrating hammer and spring prevents droplet aggregation and blockage. This invention effectively solves the defects of traditional devices, such as low efficiency of simple gravity sedimentation separation, easy clogging of the filter screen, and frequent shutdown for maintenance.

[0014] 2. This invention establishes a closed-loop regulation mechanism for the entire process by controlling equipment and components such as shut-off valves, throttle valves, and check valves. The control equipment coordinates and regulates the hydrogen production parameters of the water electrolyzer and the opening of each valve. The throttle valve precisely matches the flow rate of hydrogen entering the adsorption tower, and the check valve blocks gas backflow. Combined with real-time feedback of pressure and purity from the gas storage tank, dynamic regulation is achieved, effectively improving the problems of poor system linkage, incomplete drying, and unstable purity caused by fluctuations in hydrogen flow rate in traditional devices. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a device for preparing and storing high-quality hydrogen proposed in this invention; Figure 2 for Figure 1 Cross-sectional structural schematic diagram of the hydrogen separation unit; Figure 3 for Figure 2 Schematic diagram of the structure at the central helical blade; Figure 4 for Figure 2 Schematic diagram of components such as the transfer rod, corrugated mesh plate, and sliding plate; Figure 5 for Figure 4 Schematic diagram of components such as the central fiber ring, sliding plate, and positioning plate; Figure 6 for Figure 4 Schematic diagram of the middle positioning sleeve structure; Figure 7 This is a structural block diagram of a device for preparing and storing high-quality hydrogen proposed in this invention.

[0016] In the diagram: 1. Water electrolysis cell; 2. Control equipment; 3. Oxygen separation equipment; 4. Hydrogen separation equipment; 5. Adsorption tower; 6. Separator; 7. Gas storage tank; 8. Pipeline 1; 9. Pipeline 2; 10. Pipeline 3; 11. Pipeline 4; 12. Pipeline 5; 13. Servo motor; 14. Rotating rod; 15. Spiral blade; 16. Corrugated mesh plate; 17. Limiting rod; 18. Threaded section; 19. Limiting ring; 20. Slide plate; 21. Positioning plate; 22. Rotating rod; 23. Connecting rod; 24. Vibrating hammer; 25. Positioning sleeve; 26. Slide groove; 27. Slide rod; 28. Spring; 29. ​​Sliding block. Detailed Implementation

[0017] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0018] This invention provides a technical solution for a device for the preparation and storage of high-quality hydrogen: Please see Figure 1-7 A device for preparing and storing high-quality hydrogen includes a hydrogen production unit, a drying unit, a control unit, and a hydrogen storage unit. The hydrogen production unit comprises a water electrolyzer 1, an oxygen separation unit 3, and a hydrogen separation unit 4. The water electrolyzer 1 uses alkaline water electrolysis technology to produce hydrogen and is connected to the oxygen separation unit 3 via pipeline 8 and to the hydrogen separation unit 4 via pipeline 9. Pipeline 8 is equipped with a shut-off valve, which is electrically connected to the control unit 2 to regulate the on / off state and flow rate of oxygen delivery. The hydrogen production rate of the water electrolyzer 1 ranges from 0 to 100 Nm. 3The system operates at a pressure range of 0-3 MPa, with hydrogen undergoing initial gas-water separation via gravity in the hydrogen separation device 4. The drying unit includes the hydrogen separation device 4, an adsorption tower 5, and a separator 6. The hydrogen separation device 4 is connected to the adsorption tower 5 via pipeline 10, which is equipped with a check valve and a throttle valve. The check valve is positioned close to the hydrogen separation device 4 to prevent backflow of gas into the adsorption tower 5, and the throttle valve is electrically connected to the control device 2 to precisely regulate the flow rate of hydrogen entering the adsorption tower 5. The adsorption tower 5 is connected to the separator 6 via pipeline 11, and uses molecular adsorption to dry the hydrogen. The hydrogen storage unit includes a storage tank 7, which is connected to the separator 6 via pipeline 12. The storage capacity of the storage tank 7 ranges from 0 to 500 Nm³. 3 The control unit includes a control device 2, which is a rectifier control cabinet and supporting instruments, and is installed on the side wall of the water electrolysis tank equipment 1. It is used to control the operation of each unit of the device and the operation of the valves mentioned above.

[0019] Furthermore, the control device 2 in this apparatus can precisely match the hydrogen production rate of the water electrolyzer 1 and the drying load of the adsorption tower 5 in real time through the precise linkage of the shut-off valve and the throttling valve. This effectively solves the problems of unstable drying effect and poor system linkage caused by flow rate fluctuations in traditional devices in the background technology. At the same time, the design of integrating the rectifier control cabinet and supporting instruments into the side wall of the water electrolyzer 1 improves the equipment integration and operation convenience in the distributed hydrogen production scenario, and ensures the pressure stability and purity compliance rate of hydrogen throughout the entire process from preparation to storage.

[0020] A drain pipe is installed at the lower end of the hydrogen separation device 4. A rotating rod 14 is rotatably connected inside the hydrogen separation device 4. A spiral blade 15 is fixedly connected to the outer wall of the rotating rod 14. A conical chamfer is integrally formed at the edge of the spiral blade 15, and the chamfer direction is upward.

[0021] Furthermore, in this device, the spiral blades 15 can provide stable centrifugal force to the airflow within the hydrogen separation unit 4 through rotation, achieving a dual gas-liquid separation effect of "centrifugal force + gravity" in conjunction with gravity. This solves the problem in the prior art where simple gravity settling is insufficient to capture the fine bubbles and atomized water droplets generated by electrolysis. The conical chamfer at the edge of the spiral blades 15 guides the water droplets towards the wall, preventing secondary mixing of water droplets with hydrogen. Simultaneously, this structure operates within a range of 0-100 Nm. 3 It can operate stably over a wide flow range of / h, and even under low flow conditions, it can maintain sufficient separation power through blade rotation, thus improving the reliability of gas-water separation.

[0022] The outer wall of the rotating rod 14 is fixedly connected to a positioning sleeve 25 and a positioning plate 21. The outer wall of the positioning sleeve 25 is slidably connected to a corrugated mesh plate 16. The outer wall of the positioning plate 21 is rotatably connected to multiple sets of connecting rods 23. The outer wall of each set of connecting rods 23 is L-shaped, and the end of each set is fixedly connected to a vibrating hammer 24. The end of the vibrating hammer 24 is in contact with the end face of the corrugated mesh plate 16.

[0023] Furthermore, in this device, the corrugated screen plate 16 can perform secondary interception of hydrogen gas after initial separation by the spiral blades 15. Its corrugated structure can increase the contact area with the gas and improve the capture rate of tiny droplets. The contact and cooperation between the vibrating hammer 24 at the end of the L-shaped connecting rod 23 and the corrugated screen plate 16 can knock and clean the screen plate in real time during device operation, effectively solving the problem in the background technology that traditional filters are prone to blockage due to droplet accumulation and require frequent shutdown for disassembly and cleaning. At the same time, the circumferential distribution of multiple sets of connecting rods 23 can ensure that all areas of the screen plate are thoroughly cleaned, maintaining long-term separation efficiency.

[0024] A sliding plate 20 is slidably connected to the outer wall of the rotating rod 14. Multiple sets of rotating rods 22 are arranged around the outer circumference of the sliding plate 20, and their number and position correspond one-to-one with the connecting rods 23. The other end of each set of rotating rods 22 is rotatably connected to its adjacent connecting rod 23, and each set of rotating rods 22 is rotatably connected to the sliding plate 20.

[0025] Furthermore, in this device, the sliding of the slide plate 20 can be synchronously driven by the rotating rod 22 to drive multiple sets of connecting rods 23, so that all vibrating hammers 24 can form uniform and continuous knocking vibration on the corrugated mesh plate 16, avoiding the defects of incomplete cleaning by traditional single vibration point. This linkage structure does not require additional drive components, and the mesh plate can be self-cleaned by the power of the rotating rod 14 alone, which greatly reduces equipment maintenance costs and downtime, meeting the requirements of the background technology for improving the convenience of device maintenance and continuous operation efficiency.

[0026] Two sets of limiting rings 19 are sleeved on the outer wall of the rotating rod 14. Two sets of threaded sections 18 are opened between the two sets of limiting rings 19. The two sets of threaded sections 18 have opposite thread directions, and the sliding plate 20 is installed on the outer wall of the threaded section 18. The top of the hydrogen separation device 4 is fixedly connected to the limiting rod 17, and the sliding plate 20 is slidably connected to the outer wall of the limiting rod 17.

[0027] Furthermore, the two sets of opposing threaded sections 18 in this device enable the rotating rod 14 to drive the slide plate 20 to make a stable reciprocating linear motion along the limiting rod 17 when it rotates, thereby realizing the periodic striking action of the vibrating hammer 24. The vibration frequency can be changed by adjusting the rotation speed of the rotating rod 14 according to the change of hydrogen flow. Compared with a fixed vibration structure, it can better adapt to different working conditions. At the same time, the double limiting design of the limiting ring 19 and the limiting rod 17 can effectively prevent the slide plate 20 from deviating during operation, ensuring the long-term stable operation of the vibration mechanism and solving the problem of easy failure of internal components of separation equipment and affecting the stability of system operation in the background technology.

[0028] The outer circumference of the positioning sleeve 25 is provided with multiple sets of sliding grooves 26. Each set of sliding grooves 26 is fixedly connected to the bottom of a sliding rod 27. The outer wall of the sliding rod 27 is slidably connected to a slider 29. The sliders 29 are all fixedly connected to the inner wall of the corrugated mesh plate 16.

[0029] Furthermore, the sliding engagement between the slider 29 and the slide rod 27 in this device provides precise axial guidance for the corrugated screen plate 16, allowing the screen plate to move only slightly along the axial direction of the positioning sleeve 25 when struck by the vibrating hammer 24. This avoids lateral displacement that could lead to sealing failure between the screen plate and the device wall or structural jamming. At the same time, the closed structure of the slide groove 26 prevents droplets from entering the sliding gap and causing corrosion of the components, ensuring the long-term reliable operation of the hydrogen separation equipment 4 in a high-pressure and humid environment of 0-3MPa. This solves the hidden dangers of water accumulation inside the equipment and easy corrosion of metal components in the background technology.

[0030] Each set of slide rods 27 is fitted with a spring 28 on its outer wall, and the two ends of the spring 28 are fixedly connected to the slider 29 and the bottom of the slide groove 26, respectively.

[0031] Furthermore, in this device, the spring 28 can assist the corrugated mesh plate 16 to quickly return to its original position after vibration through elastic reset, forming a high-frequency vibration cycle of "tapping-reset", which enhances the peeling effect on the surface of the mesh plate. At the same time, the spring 28 can effectively buffer the impact force of the vibrating hammer 24, avoid damage and deformation of the corrugated mesh plate 16 due to long-term hard impact, extend the service life of vulnerable parts, reduce maintenance frequency and cost, and form a targeted optimization to address the pain point of low maintenance efficiency of traditional devices in the background technology.

[0032] A servo motor 13 is fixedly connected to the end face of the hydrogen separation device 4, and the output shaft of the servo motor 13 is coaxially and fixedly connected to the rotating rod 14.

[0033] In practical use, the working principle of this invention is as follows: After the operator starts the device, the control device 2 first enters the initialization state. Its integrated rectifier control cabinet and supporting instruments complete the parameter calibration of the hydrogen production unit, drying unit and hydrogen storage unit. At this time, the shut-off valve on pipeline 18, the check valve and throttle valve on pipeline 310 are all in the closed state, and the servo motor 13 is in standby mode to ensure that all components work together in an orderly manner in the early stage of device startup and avoid operational risks caused by malfunctions.

[0034] After initialization, control device 2 sends a start signal to water electrolysis tank 1. Water electrolysis tank 1 then initiates the electrolysis reaction using alkaline water electrolysis technology, at a speed of 0-100 Nm. 3 Hydrogen is continuously produced at a rate of / h and a pressure of 0-3MPa. The mixed gas produced during electrolysis is initially separated: hydrogen is transported to hydrogen separation device 4 via pipeline 29 for gas-liquid separation, while oxygen flows to oxygen separation device 3 via pipeline 18. At this time, control device 2 drives the shut-off valve on pipeline 18 to open and dynamically adjusts the valve opening based on the inlet pressure feedback of oxygen separation device 3, precisely controlling the on / off and flow rate of oxygen delivery to ensure the stability of the oxygen separation process.

[0035] When hydrogen enters the hydrogen separation device 4, the control device 2 synchronously starts the servo motor 13. The output shaft of the servo motor 13 drives the rotating rod 14 to rotate at a constant speed, and the spiral blades 15 on the outer wall of the rotating rod 14 rotate together. The spiral blades 15 apply a stable centrifugal force to the hydrogen flow through rotation, forming a dual gas-liquid separation mechanism of "centrifugal force + gravity" together with gravity. The fine bubbles and atomized water droplets mixed in the hydrogen are thrown towards the inner wall of the hydrogen separation device 4 under the action of centrifugal force, and the conical chamfer on the edge of the spiral blades 15 guides these water droplets to slide smoothly down the device wall to the lower drain pipe for discharge. This effectively avoids the problem of water droplets escaping with the air flow in the traditional simple gravity sedimentation, and achieves the initial drying of hydrogen.

[0036] As the rotating rod 14 rotates, two sets of opposing threaded sections 18 on its outer wall drive the slide plate 20 to reciprocate linearly along the limiting rod 17. The limiting ring 19 precisely limits the stroke of the slide plate 20 to prevent deviation. The slide plate 20 synchronously drives the corresponding connecting rod 23 to rotate around the positioning plate 21 through multiple sets of circumferentially distributed rotating rods 22. The vibrating hammer 24 at the end of the L-shaped connecting rod 23 periodically strikes the corrugated mesh plate 16. At this time, the corrugated mesh plate 16 slides slightly axially along the sliding rod 27 of the positioning sleeve 25 through the slider 29 on the inner wall. The spring 28 sleeved on the outer wall of the sliding rod 27 assists the corrugated mesh plate 16 to quickly return to its original position after being struck by the elastic restoring action, forming a high-frequency vibration cycle of "striking-restoring". The corrugated structure of the corrugated screen plate 16 increases the contact area with hydrogen, and performs secondary interception of the hydrogen that has been initially separated by the spiral blades 15, further capturing tiny droplets; the periodic tapping of the vibrating hammer 24 completely avoids droplets accumulating and clogging on the screen plate surface, and can complete self-cleaning without stopping the machine, solving the pain point of frequent maintenance of traditional filters.

[0037] Hydrogen gas, after being deeply processed by hydrogen separation equipment 4, enters the drying unit through pipeline 310. The one-way valve on pipeline 310 is tightly closed to prevent the adsorbent vapor in adsorption tower 5 from flowing back and contaminating the hydrogen gas. Control equipment 2 precisely controls the flow rate of hydrogen gas entering adsorption tower 5 by adjusting the opening of the throttle valve according to the real-time adsorption load of adsorption tower 5, ensuring that the hydrogen gas has sufficient contact with the molecular adsorbent in adsorption tower 5, achieving efficient drying, and keeping the dew point of the treated hydrogen gas stably maintained within the range of no higher than -10℃ to -60℃. The dried hydrogen gas enters separator 6 through pipeline 41. Separator 6 performs final filtration of residual trace adsorbent particles in the hydrogen gas to ensure hydrogen purity.

[0038] Hydrogen gas meeting purity requirements enters storage tank 7 through pipeline 512. The hydrogen storage capacity of storage tank 7 can range from 0 to 500 Nm³. 3The range is flexible and adaptable. The control device 2 monitors the pressure and hydrogen purity in the gas storage tank 7 in real time through the matching instruments. When the pressure reaches the preset threshold or the purity fluctuates, it immediately links and adjusts the hydrogen production rate of the water electrolysis cell equipment 1, the opening degree of the throttle valve, and the operating status of the shut-off valve to form a closed-loop regulation mechanism to ensure the pressure stability and hydrogen quality of the entire system.

[0039] When the unit needs to be shut down, control device 2 first shuts down the electrolysis reaction of water electrolysis cell 1. After the hydrogen in hydrogen separation device 4 and adsorption tower 5 is completely delivered to storage tank 7, servo motor 13 and valves in each pipeline are shut down in sequence. Throughout the operation, the integrated design of control device 2 allows operators to intuitively monitor the operating conditions of each unit through the supporting instruments, achieving stable operation of the unit without complicated operations.

[0040] In summary, this high-quality hydrogen preparation and storage device, through the overall control of the control device 2, combined with the synergistic effect of the spiral blades 15, vibrating hammer 24 and corrugated mesh plate 16 in the hydrogen separation device 4, and the precise flow rate control of the drying unit, achieves efficient processing of hydrogen from preparation, separation, drying to storage, effectively solving the problems of low gas-liquid separation efficiency, frequent maintenance and unstable purity of traditional devices.

[0041] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A device for preparing and storing high-quality hydrogen, comprising a hydrogen production unit, a drying unit, a control unit, and a hydrogen storage unit, characterized in that: The hydrogen production unit includes a water electrolyzer (1), an oxygen separation device (3), and a hydrogen separation device (4). The water electrolyzer (1) uses alkaline water electrolysis technology to produce hydrogen and is connected to the oxygen separation device (3) through pipeline one (8) and to the hydrogen separation device (4) through pipeline two (9). A shut-off valve is provided on pipeline one (8), and the shut-off valve is electrically connected to the control device (2) to regulate the on / off and flow rate of oxygen delivery. The hydrogen production rate of the water electrolyzer (1) ranges from 0 to 100 Nm. 3 / h, pressure range of 0-3MPa, and hydrogen gas achieves preliminary gas-water separation in hydrogen separation device (4) by gravity; the drying unit includes hydrogen separation device (4), adsorption tower (5) and separator (6), the hydrogen separation device (4) is connected to adsorption tower (5) through pipeline three (10), the pipeline three (10) is provided with a one-way valve and a throttle valve in sequence, the one-way valve is set close to hydrogen separation device (4) to prevent gas backflow in adsorption tower (5), the throttle valve is electrically connected to control device (2) to precisely adjust the flow rate of hydrogen gas entering adsorption tower (5); the adsorption tower (5) is connected to separator (6) through pipeline four (11), the adsorption tower (5) dries hydrogen gas by molecular adsorption; the hydrogen storage unit includes gas storage tank (7), the separator (6) is connected to gas storage tank (7) through pipeline five (12), the hydrogen storage capacity of gas storage tank (7) ranges from 0 to 500 Nm 3 The control unit includes a control device (2), which is a rectifier control cabinet and supporting instruments, and is installed on the side wall of the water electrolysis tank equipment (1) for controlling the operation of each unit of the device and the operation of the valves mentioned above.

2. The apparatus for preparing and storing high-quality hydrogen according to claim 1, characterized in that: The hydrogen separation device (4) is equipped with a drain pipe at the lower end. A rotating rod (14) is rotatably connected inside the hydrogen separation device (4). A spiral blade (15) is fixedly connected to the outer wall of the rotating rod (14). A conical chamfer is integrally formed at the edge of the spiral blade (15), and the chamfer direction is upward.

3. The apparatus for preparing and storing high-quality hydrogen according to claim 2, characterized in that: The outer wall of the rotating rod (14) is fixedly connected to a positioning sleeve (25) and a positioning plate (21). The outer wall of the positioning sleeve (25) is slidably connected to a corrugated mesh plate (16). The outer wall of the positioning plate (21) is rotatably connected to multiple sets of connecting rods (23). The outer wall of each set of connecting rods (23) is L-shaped, and the end of each set is fixedly connected to a vibrating hammer (24). The end of the vibrating hammer (24) is in contact with the end face of the corrugated mesh plate (16).

4. The apparatus for preparing and storing high-quality hydrogen according to claim 3, characterized in that: The outer wall of the rotating rod (14) is slidably connected to the slide plate (20). The outer wall of the slide plate (20) is provided with multiple sets of rotating rods (22), and their number and position correspond one-to-one with the connecting rod (23). The other end of each set of rotating rods (22) is rotatably connected to its adjacent connecting rod (23), and each set of rotating rods (22) is rotatably connected to the slide plate (20).

5. The apparatus for preparing and storing high-quality hydrogen according to claim 4, characterized in that: The outer wall of the rotating rod (14) is fitted with two sets of limiting rings (19), and two sets of threaded sections (18) are opened between the two sets of limiting rings (19). The two sets of threaded sections (18) have opposite thread directions, and the sliding plate (20) is fitted and installed on the outer wall of the threaded section (18). The top of the hydrogen separation device (4) is fixedly connected to a limiting rod (17), and the sliding plate (20) is slidably connected to the outer wall of the limiting rod (17).

6. The apparatus for preparing and storing high-quality hydrogen according to claim 5, characterized in that: The positioning sleeve (25) has multiple sets of sliding grooves (26) on its outer circumference. Each set of sliding grooves (26) has a sliding rod (27) fixedly connected to its bottom. The sliding rod (27) has a slider (29) slidably connected to its outer wall. The slider (29) is fixedly connected to the inner wall of the corrugated mesh plate (16).

7. The apparatus for preparing and storing high-quality hydrogen according to claim 6, characterized in that: Each set of slide rods (27) is fitted with a spring (28) on its outer wall. The two ends of the spring (28) are fixedly connected to the slider (29) and the bottom of the groove (26), respectively.

8. The apparatus for preparing and storing high-quality hydrogen according to claim 7, characterized in that: The hydrogen separation device (4) is fixedly connected to a servo motor (13) at its end face, and the output shaft of the servo motor (13) is fixedly connected to the rotating rod (14) on the same axis.

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