Rotational flow coupling membrane filtration type directional catalysis hydrogen production machine and use method thereof

Abstract

The invention discloses a cyclone coupling membrane filtration type directional catalysis hydrogen production machine and a use method thereof. The cyclone coupling membrane filtration type directional catalysis hydrogen production machine comprises an outer bin, and the outer bin comprises a lower tank body and an upper tank body which are communicated with each other; a reaction mechanism is arranged in the lower tank body, and a compression mechanism and a filtering mechanism are arranged in the upper tank body; the reaction mechanism is used for reaction of reaction materials and addition of a catalyst, a stirring mechanism is coaxially arranged at the bottom in the reaction mechanism and used for stirring the materials to form three-dimensional rotational flow, a graphene-based composite bed layer is arranged on the blade surface of the stirring mechanism and used for adsorbing the catalyst, and a temperature control mechanism is arranged on the reaction mechanism and used for controlling the reaction temperature. The air outlet end of the reaction mechanism is communicated with the air inlet end of the compression mechanism through a connecting pipeline; the compression mechanism is used for compressing gas and providing filtering driving force, and a filtering mechanism is arranged on the side, close to the gas outlet end of the compression mechanism, in the compression mechanism to conduct hierarchical gradient filtering on the compressed gas; and the filtered gas enters the storage mechanism through the conveying mechanism, so that the preparation efficiency is high, and the preparation effect is good.

Description

Technical Field

[0001] This invention relates to the field of hydrogen production technology, and in particular to a cyclone-coupled membrane filtration type directional catalytic hydrogen generator and its usage method. Background Technology

[0002] Hydrogen is a colorless and odorless light gas under standard industrial conditions (0℃, 1 atm), with a density of only about 0.09 g / L, which is only about 7% of the density of air. Its boiling point is as low as -252.87℃. This extremely low temperature characteristic allows it to remain in a gaseous state under normal conditions, giving it unique advantages in scenarios such as low-temperature energy storage.

[0003] Traditional water electrolysis hydrogen production equipment suffers from problems such as complex structure, high energy consumption, and limited product purity; while existing silane dehydrogenation hydrogen production equipment mostly relies on complex electrical control systems, and the reaction stability and gas separation efficiency need to be improved, making it difficult to meet the industrial demand of "ready to use and safe and reliable". Existing hydrogen generators suffer from poor temperature control, resulting in high impurity content in the produced hydrogen, which affects compression efficiency. Furthermore, the catalyst cannot be recovered from the solvent, making it difficult to pause and restart at any time.

[0004] The development of an intelligent, controllable silane-directed catalytic hydrogen production machine can effectively reduce the cost of hydrogen for enterprises, promote the large-scale application of hydrogen energy in transportation, energy storage and other fields, and help related industries achieve green transformation. Summary of the Invention

[0005] This invention provides a cyclone-coupled membrane filtration-type directional catalytic hydrogen generator and its usage method, aiming to solve the aforementioned problem of the lack of a hydrogen generator that can be paused and restarted at any time and is ready to use immediately, while also solving the problems of high impurity content and poor compression effect in hydrogen production.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A cyclone-coupled membrane filtration directional catalytic hydrogen generator includes an outer chamber, which comprises a lower tank and an upper tank that are interconnected. The lower tank contains a reaction mechanism, while the upper tank contains a compression mechanism and a filtration mechanism. The reaction mechanism is used for reacting reactants and adding catalysts. A stirring mechanism is coaxially arranged at the bottom of the reaction mechanism to stir the materials and form a three-dimensional vortex. The blade surface of the stirring mechanism is provided with a graphene-based composite bed for adsorbing catalysts. A temperature control mechanism is provided on the reaction mechanism to control the reaction temperature. The gas outlet of the reaction mechanism is connected to the gas inlet of the compression mechanism through a connecting pipe. The compression mechanism is used to compress gas and provide the driving force for filtration. A filtration mechanism is provided inside the compression mechanism near the gas outlet to perform tiered gradient filtration of the compressed gas. The filtered gas enters the storage unit through the conveying mechanism.

[0007] Preferably, the reaction mechanism includes an inner chamber located inside the lower tank. The upper inclined surface of the lower tank has a raw material inlet that communicates with the inner chamber. The lower outer surface of the upper tank has an auxiliary feed inlet 1, an auxiliary feed inlet 2, and a catalyst feed inlet, which are respectively communicated with the inner chamber.

[0008] Preferably, the stirring mechanism includes a base coaxially disposed at the bottom of the inner chamber, a central base coaxially rotatably mounted on the top of the base, a propeller blade coaxially fixed on the central base to form synchronous rotation, a magnetic levitation drive adapter shaft coaxially disposed at the center of the central base, a levitation electromagnet fixed on the magnetic levitation drive adapter shaft inside the central base, a magnetic field generating coil coaxially disposed at the middle of the bottom of the lower tank, and a magnetic field generating coil coaxial with the base. After being energized, the magnetic levitation electromagnet rotates around the axis under the magnetic field of the magnetic field generating coil. The blades of the propeller blade are uniformly coated with a graphene-based composite bed layer.

[0009] Preferably, the graphene-based composite bed is composed of graphite and activated carbon at a mass ratio of 4:1, with a coating thickness of 60μm~100μm and a mesopore diameter of 2nm~50nm.

[0010] Preferably, the temperature control mechanism includes a micro heat exchange channel spirally arranged around the outer wall of the inner chamber. The micro heat exchange channel is connected to the external heat exchanger and the circulating pump to provide the basic reaction temperature to the inner chamber. The inner wall of the inner chamber is equipped with an infrared temperature probe and several miniature PTC heaters. The infrared temperature probe is used to monitor the temperature inside the inner chamber, and the miniature PTC heaters are used for thermal compensation and fine-tuning of the temperature inside the inner chamber. The infrared temperature probe, the miniature PTC heaters, and the temperature display located on the outside of the outer chamber are all electrically connected to the industrial PLC control system.

[0011] Preferably, the compression mechanism includes a shell disposed in the upper tank. The air inlet end of the shell is connected to the top of the inner chamber through a connecting pipe to form a sealed connection. The shell is divided into two chambers, a compression chamber and a temporary storage chamber, by a partition. The partition is evenly provided with a number of compression holes. The diameter of the compression hole on the side near the compression chamber is larger than the diameter of the compression hole on the side near the temporary storage chamber. When the gas enters the temporary storage chamber through the compression hole, a compression fit is formed. The compression chamber is equipped with a reciprocating structure that drives the rotating screw disc to reciprocate, thereby compressing the gas once and then compressing it a second time when it passes through the compression hole. The filtration mechanism is located in the temporary storage chamber. After the gas enters, it passes through a series of filters before entering the conveying mechanism.

[0012] Preferably, the reciprocating mechanism includes a reciprocating servo motor mounted on the partition near the temporary storage chamber, a reciprocating screw coaxially mounted in the compression chamber, the output shaft of the reciprocating servo motor passing through the partition and rotating synchronously with the reciprocating screw via a coupling, a movable seat mounted on the reciprocating screw via a ball screw nut, one side of the movable seat being limited by a limiting rod to form a limiting slide, and the limiting rod being parallel to the reciprocating screw; The bottom of the movable base is provided with an outwardly protruding mounting annular protrusion, and the outer wall of the mounting annular protrusion is rotatably mounted with a screw disc body via a bearing. The disc body includes a disc body with a mounting hole in the middle for bearing installation. The outer side of the disc body has several equally spaced helical teeth around the axis. Adjacent helical teeth cooperate to form a flow channel. When the disc body rotates, it forms a propeller-shaped structure. Gas flows through the flow channel to form a flow channel. The outer side of the helical teeth cooperates with the inner wall of the compression chamber to form an airflow channel. A servo motor for rotation is provided on one side of the top of the movable base. The output shaft of the servo motor passes through the movable base axially and exits through the inner circle of the mounting annular protrusion. A drive gear is coaxially provided at the end of the output shaft of the servo motor. A driven gear ring is provided around the mounting hole at the bottom of the disc body. The driven gear ring is coaxial with the disc body. The outer side of the drive gear meshes with the inner side of the driven gear ring to form a transmission.

[0013] Preferably, the filtration mechanism includes at least two filter layers; The first-stage filtration layer, located at the front along the gas delivery direction, is a nanofiltration membrane used to remove silanol impurities. The secondary filter layer, located at the front along the gas delivery direction, is a polyimide composite membrane used to remove trace amounts of silanol and hydrocarbon byproducts.

[0014] Preferably, the conveying mechanism includes a main air outlet located at the top of the upper tank and sealed to the air outlet of the compression mechanism. The main air outlet is sealed to the air inlet of the air storage container of the storage mechanism through a conveying pipeline. Gas flow regulating valves and pressure gauges are sequentially installed along the conveying direction on the pipeline; The gas storage container is equipped with a venting port.

[0015] A method of using a hydrogen generator, comprising the above-mentioned cyclone-coupled membrane filtration directional catalytic hydrogen generator for producing hydrogen, includes the following steps: In the hydrogen production process, tetramethyldisiloxane is first injected into the reaction mechanism inside the lower tank, and then palladium-carbon nanosphere catalyst is injected. The stirring mechanism is started, and the stirring mechanism drives the blades to rotate at a speed of 3000 r / min, forming a three-dimensional swirling flow field inside the reaction chamber, so that the tetramethyldisiloxane liquid and the palladium-carbon nanosphere catalyst can be fully contacted. Simultaneously, the temperature control mechanism is activated to raise the temperature inside and outside the reaction mechanism, control the reaction temperature, and maintain the temperature within the optimal activity temperature range of the palladium carbon nanosphere catalyst. The mixed gas enters the compression mechanism from the reaction mechanism for gas compression. During the compression process, the mixed gas is controlled to pass through the filtration mechanism for hierarchical gradient filtration to obtain high-purity hydrogen. High-purity hydrogen gas is transported through a conveying mechanism and stored in a storage facility. When the reaction needs to be terminated, additional solid zinc sulfate is added to the reaction mechanism. Zinc ions combine with palladium-carbon nanosphere catalyst to occupy catalytic sites. At the same time, the stirring speed is controlled to be reduced to 50 r / min, the dehydrogenation reaction stops, and the catalyst is adsorbed onto the graphene-based composite bed on the surface of the blade, resulting in solid-liquid separation. When the reaction needs to continue, disodium ethylenediaminetetraacetate is added to the reaction unit to recover zinc ions and restore catalyst activity. The temperature inside the reaction unit is raised to the optimal catalytic temperature within 3 seconds by the temperature control mechanism, and the stirring mechanism is immediately restored to the rated speed of 3000 r / min to achieve rapid restart of the dehydrogenation reaction.

[0016] The beneficial effects of this invention are: 1. The temperature control mechanism of this invention uses an infrared temperature probe, a micro heat exchange channel and a micro PTC heater to work together. By accurately monitoring and regulating the temperature inside the reaction chamber, it effectively improves the stability of the reaction and the efficiency of hydrogen production, while avoiding safety hazards and electrical risks caused by improper temperature. 2. The compression mechanism of this invention is equipped with a filtration mechanism, which adopts a progressive gradient membrane and a threaded continuous compression disc to work together. The first-stage nanofiltration membrane removes 99% of silanol impurities, and the second-stage polyimide composite membrane deeply removes trace impurities. Then, the threaded continuous compression disc is used for pressure regulation and propulsion, which not only ensures the high purity of hydrogen, but also provides stable power for hydrogen output, realizing efficient linkage between gas purification and transportation. 3. The filter stirring mechanism of this invention uses a magnetically levitated propeller blade to form a three-dimensional swirling field, which allows the raw materials and catalyst to fully contact each other. The graphene-based composite bed can also achieve solid-liquid separation, eliminating the need for additional filtration equipment, simplifying the structure of the hydrogen generator, and improving the reaction rate and the uniformity of material contact. 4. This invention can achieve precise "on / off" control and rapid restart of the dehydrogenation reaction by accurately adding solid zinc sulfate and disodium ethylenediaminetetraacetate and operating the feed inlet, combined with stirring speed and temperature control. The entire hydrogen production process is pollution-free and intelligent, greatly improving the equipment's adaptability and operational flexibility. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the appearance of the present invention; Figure 2This is a schematic diagram of the internal plan of the present invention; Figure 3 This is a schematic diagram of the internal cross-section of the present invention; Figure 4 This is a schematic diagram of the inside of the rotor of the stirring mechanism of the present invention; Figure 5 This is a schematic diagram of the stator of the stirring mechanism of the present invention; Figure 6 This is a schematic diagram of the external appearance of the compression mechanism of the present invention; Figure 7 This is a schematic diagram of the internal installation of the compression mechanism and the filtering mechanism of the present invention; Figure 8 This is a schematic diagram of the transmission connection at the bottom of the compression mechanism of the present invention; Figure 9 This is a schematic diagram of the internal arrangement of the compression mechanism of the present invention from a bottom-view perspective; In the diagram: 1. Outer chamber; 2. Inner chamber; 3. Lower tank; 4. Upper tank; 5. Raw material inlet; 6. Auxiliary feed inlet 1; 7. Auxiliary feed inlet 2; 8. Catalyst feed inlet; 9. Main gas outlet; 10. Quick-opening disassembly clamp; 11. Miniature heat exchange channel; 12. Connecting pipe; 13. Miniature PTC heater; 14. Infrared temperature probe; 15. Temperature display; 16. Propeller blade; 17. Central base; 18. Magnetic levitation drive adapter shaft; 19. Magnetic field generating coil; 20. Graphene-based composite bed; 21. Suspension electromagnet; 22. Base; 26. Delivery pipeline; 27. Gas flow regulating valve; 28. Pressure gauge; 29. 30. Gas storage container; 31. Vent port; 32. Shell; 33. Compression chamber; 34. Temporary storage chamber; 35. Baffle plate; 36. Compression hole; 37. Reciprocating servo motor; 38. Coupling; 39. Reciprocating lead screw; 40. Ball screw nut; 41. Bearing housing; 42. Limit rod; 43. Moving seat; 44. Mounting annular protrusion; 45. Bearing; 46. Screw disc body; 47. Disc body; 48. Helical gear; 49. Drainage groove; 50. Mounting hole; 51. Rotation servo motor; 52. Drive gear; 53. Driven gear ring; 54. Airflow channel; 55. Primary filter layer; 56. Secondary filter layer; 57. Diverter plate; 58. Diverter hole. Detailed Implementation

[0018] The following describes the embodiments in further detail with reference to the accompanying drawings, using hydrogen production or hydrogen generators as the application scenario.

[0019] like Figures 1-3 As shown in the preferred embodiment 1, a cyclone coupling membrane filtration directional catalytic hydrogen generator includes an outer chamber 1, which includes a lower tank 3 and an upper tank 4 that are interconnected. The lower tank 4 is equipped with a reaction mechanism, and the upper tank 4 is equipped with a compression mechanism and a filtration mechanism. The reaction mechanism is used for reacting reactants and adding catalysts. A stirring mechanism is coaxially arranged at the bottom of the reaction mechanism to stir the materials and form a three-dimensional vortex. The surface of the blades of the stirring mechanism is provided with a graphene-based composite bed 20 for adsorbing catalysts. A temperature control mechanism is provided on the reaction mechanism to control the reaction temperature. The gas outlet of the reaction mechanism is connected to the gas inlet of the compression mechanism through a connecting pipe 12. The compression mechanism is used to compress gas and provide the driving force for filtration. A filtration mechanism is provided inside the compression mechanism near the gas outlet to perform tiered gradient filtration of the compressed gas. The filtered gas enters the storage unit through the conveying mechanism.

[0020] In a preferred embodiment 2, the reaction mechanism includes an inner chamber 2 located within the lower tank 3. The upper inclined surface of the lower tank 3 has a raw material inlet 5 communicating with the inner chamber 2. The lower outer surface of the upper tank 4 has auxiliary feed inlets 6, 7, and 8, which are all connected to the inner chamber 2. The inlets for adding each material are separated: the reaction raw material enters through the raw material inlet 5, the catalyst enters through the catalyst inlet 8, the pausing agent enters through the auxiliary feed inlet 6, and the restart agent enters through the auxiliary feed inlet 7.

[0021] like Figure 4 and Figure 5 As shown in the preferred embodiment 3, the stirring mechanism includes a base 22 coaxially disposed at the bottom of the inner chamber 2, a central base 17 coaxially rotatably mounted on the top of the base 22, a propeller blade 16 coaxially fixed on the central base 17 to form synchronous rotation, a magnetic levitation drive adapter shaft 18 coaxially disposed at the center of the central base 17, a levitation electromagnet 21 fixed on the magnetic levitation drive adapter shaft 18 inside the central base 17, a magnetic field generating coil 19 coaxially disposed at the middle of the bottom of the lower tank 3, and a magnetic field generating coil 19 coaxial with the base 22. After being energized, the magnetic levitation electromagnet 21 rotates around the axis under the magnetic field of the magnetic field generating coil 19, and the blades of the propeller blade 16 are uniformly coated with a graphene-based composite bed layer 20.

[0022] A structure similar to a flux motor is formed, and the rotor and stator are connected in a non-contact manner. A permanent magnet is formed by a levitation electromagnet 21, which is driven to rotate under the action of the magnetic field. The rotation of the levitation electromagnet 21 drives the magnetic levitation drive adapter shaft 18 to rotate. The rotation of the magnetic levitation drive adapter shaft 18 drives the central base 17 to rotate on the base 22, thereby driving the propeller blade 16 to rotate.

[0023] Preferably, the propeller blade 16 includes at least 8 blades, which are evenly distributed in a streamlined shape on the outer wall of the agitator. The blades are made of lightweight aluminum alloy and have a thickness of 2mm-3mm.

[0024] As a preferred embodiment 4, the graphene-based composite bed 20 is composed of graphite and activated carbon at a mass ratio of 4:1, with a coating thickness of 60μm~100μm and mesopore size of 2nm~50nm. This ensures effective adsorption and fixation.

[0025] As a preferred embodiment 5, the temperature control mechanism includes a micro heat exchange channel 11 spirally arranged around the outer wall of the inner chamber 2. The micro heat exchange channel 11 is connected to the external heat exchanger and the circulating pump to provide the inner chamber 2 with a basic reaction temperature. The inner wall of the inner chamber 2 is equipped with an infrared temperature probe 14 and several miniature PTC heaters 13. The infrared temperature probe 14 is used to monitor the temperature inside the inner chamber 2, and the miniature PTC heaters 13 are used for thermal compensation and fine adjustment of the temperature inside the inner chamber 2. The infrared temperature probe 14, the miniature PTC heaters 13 and the temperature display 15 located on the outside of the outer chamber 1 are all electrically connected to the industrial PLC control system.

[0026] This facilitates temperature control and lays the foundation for automation. Control can be implemented according to the following process: The temperature of the solution in the inner chamber 2 is monitored in real time by infrared temperature probe 14. When the basic reaction temperature of the solution after heat exchange in the micro heat exchange channel 11 is lower than the minimum value of the set range, the temperature is insufficient. The micro PTC heater 13 is started by the industrial PLC control system to supplement the heat until the temperature exceeds the minimum value of the set range, at which point the micro PTC heater 13 is turned off. When the basic reaction temperature of the solution after heat exchange in the micro heat exchange channel 11 is higher than the maximum value of the set range, the temperature is exceeded. At this time, the temperature or flow rate of the micro heat exchange channel 11 is slowly reduced by the industrial PLC control system until the temperature is lower than the maximum value of the set range, and then the temperature or flow rate is maintained at this time and no longer reduced.

[0027] Preferably, the micro heat exchange channel 11 is embedded in the wall of the inner chamber 2, and the heat exchanger can be heat transfer oil.

[0028] like Figures 6-9 As shown in the preferred embodiment 6, the compression mechanism includes a housing 31 disposed inside the upper tank 4. The air inlet end of the housing 31 is connected to the top of the inner chamber 2 through a connecting pipe 12 to form a sealed communication. The housing 31 is divided into two chambers, a compression chamber 32 and a temporary storage chamber 33, by a partition 34. A plurality of compression holes 35 are evenly provided on the partition 34. The diameter of the compression hole 35 on the side near the compression chamber 32 is larger than the diameter of the compression hole 35 on the side near the temporary storage chamber 33. When the gas enters the temporary storage chamber 33 through the compression hole 35, a compression fit is formed. The compression chamber 32 is equipped with a reciprocating structure that drives the rotating screw disc body 45 to reciprocate, thereby compressing the gas once and compressing it a second time when the gas passes through the compression hole 35. The filtration mechanism is located in the temporary storage chamber 33. After the gas enters, it passes through a series of filters before entering the conveying mechanism.

[0029] The reciprocating mechanism includes a reciprocating servo motor 36 mounted on the partition 34 near the temporary storage chamber 33. A reciprocating lead screw 38 is coaxially mounted in the compression chamber 32. The output shaft of the reciprocating servo motor 36 passes through the partition 34 and rotates synchronously with the reciprocating lead screw 38 through a coupling 37. A movable seat 42 is mounted on the reciprocating lead screw 38 through a ball screw nut 39. One side of the movable seat 42 is penetrated by a limiting rod 41 to form a limiting slide, and the limiting rod 41 is parallel to the reciprocating lead screw 38. The bottom of the movable base 42 is provided with an outwardly protruding mounting annular protrusion 43, and the outer wall of the mounting annular protrusion 43 is rotatably mounted on the screw disc body 45 via a bearing 44. The disc body 45 includes a disc body 46. The disc body 46 has a mounting hole 49 in the middle for mounting the bearing 44. The outer side of the disc body 46 has several equally spaced helical teeth 47 around the axis. Adjacent helical teeth 47 cooperate to form a flow channel 48. When the disc body 46 rotates, it forms a propeller-shaped structure. Gas flows through the flow channel 48 to form a flow channel. The outer side of the helical teeth 47 cooperates with the inner wall of the compression chamber 32 to form an airflow channel 53. The airflow channel 53 is about 5mm. A servo motor 50 for rotation is provided on one side of the top of the movable seat 42. The output shaft of the servo motor 50 passes through the movable seat 42 axially and exits through the inner circle of the mounting annular protrusion 43. A drive gear 51 is coaxially provided at the end of the output shaft of the servo motor 50. A driven gear ring 52 is provided around the mounting hole 49 at the bottom of the disc body 46. The driven gear ring 52 is coaxial with the disc body 46. The outer side of the drive gear 51 meshes with the inner side of the driven gear ring 52 to form a transmission.

[0030] When the reciprocating servo motor 36 rotates via the reciprocating screw 38, ball screw nut 39 and limit rod 41, the moving seat 42 reciprocates along the axial direction, and at the same time drives the screw disc body 45 on the moving seat 42 to reciprocate to compress the gas in the compression chamber 32. When the gas passes through the compression hole 35, its volume decreases from large to small and it is also compressed twice. The servo motor 50 on the movable seat 42 drives the drive gear 51 to rotate, and the drive gear 51 drives the driven gear ring 52 to rotate, thereby driving the screw disc body 45 to rotate synchronously. The rotation of the screw disc body 45 forms an upward one-way gas channel 53, which continuously pulls the airflow to ensure compression while forming a certain sealing effect.

[0031] As a more preferred embodiment 8, a flow divider 56 is provided on the side of the compression chamber 32 away from the partition 34. The flow divider 56 is provided with a plurality of flow divider holes 57 evenly distributed to disperse the gas. The other end of the reciprocating screw 38 away from the reciprocating servo motor 36 forms a rotational engagement with the middle position of the flow divider 56 through the bearing seat 40. The other end of the limiting rod 41 away from the reciprocating servo motor 36 is fixed on the flow divider 56, further improving the stability of operation.

[0032] In a preferred embodiment 9, the filtration mechanism includes at least two filter layers; Located at the front along the gas delivery direction is the primary filter layer 54, which is a nanofiltration membrane with a pore size of 1nm-10nm, a thickness of 50μm-100μm, and a molecular weight cutoff of 100Da, used to screen out silanol impurities. Located at the front along the gas transport direction is the secondary filter layer 55, which is a polyimide composite membrane with a pore size of 0.1nm-1nm, a thickness of 20μm-50μm, and a molecular weight cutoff of 250Da, used to remove trace amounts of silanol and hydrocarbon byproducts.

[0033] As a preferred embodiment 10, the conveying mechanism includes a main air outlet 9 located at the top of the upper tank 4 and sealed and connected to the air outlet of the compression mechanism. The main air outlet 9 is sealed and connected to the air inlet of the air storage container 29 of the storage mechanism through the conveying pipeline 26. A gas flow regulating valve 27 and a pressure gauge 28 are sequentially installed along the conveying direction on the conveying pipeline 26; the pressure gauge 28 can be a dual-display instrument with integrated flow measurement of the existing pointer pressure gauge, and the dial range covers 0-2MPa (pressure) and 0-50m3 / h (flow).

[0034] The gas storage container 29 is equipped with a venting port 30.

[0035] As a more preferred embodiment 11, the inner surfaces of the inner chamber 2 and the outer chamber 1 are coated with a rubber sound-absorbing layer, which can absorb the noise generated during the operation of the stirring assembly and gas flow.

[0036] As a more preferred embodiment 12, the outer side of the main air outlet 9 is also provided with several quick-opening detachable clamps for connecting other air storage containers 29.

[0037] As a preferred embodiment 13, a method of using a hydrogen generator, which uses the above-described cyclone-coupled membrane filtration directional catalytic hydrogen generator to produce hydrogen, includes the following steps: In the hydrogen production process, tetramethyldisiloxane is first injected into the inner chamber 2 from the raw material port 5 of the reaction chamber, and then palladium carbon nanosphere catalyst is injected from the catalyst feed port 8. The magnetic field generating coil 19 and the levitation electromagnet 21 of the stirring mechanism are activated. The bottom magnetic levitation drive device of the stirring system drives the propeller blade 16 to rotate at a speed of 3000 r / min, forming a three-dimensional swirling field inside the inner chamber 2, so that the tetramethyldisiloxane liquid and the palladium carbon nanosphere catalyst can be fully contacted. Simultaneously, the micro heat exchange channel 11 is activated to raise the temperature of the outer wall of the inner chamber 2, and the temperature inside the inner chamber 2 is controlled at the approximate reaction temperature. The infrared temperature probe 14 is combined with the temperature display 15 to observe and control the micro PTC heater 13 to start or stop for supplemental heating, so as to maintain the temperature inside the inner chamber 2 within the optimal activity temperature range of the palladium carbon nanosphere catalyst. The mixed gas enters the compression mechanism through the connecting pipe 12 connected to the inner chamber 2. The gas is compressed and filtered by the filtration mechanism at the same time: the first-stage nanofiltration membrane removes 99% of silanol impurities in the filtration chamber, and the second-stage polyimide composite membrane deeply removes trace amounts of silanol and hydrocarbon by-products. Finally, high-purity hydrogen is obtained at the main outlet 9. When the reaction needs to be terminated, an appropriate amount of solid zinc sulfate is added from the auxiliary feed port 6 of the reaction chamber. The zinc ions combine with the palladium carbon nanosphere catalyst and occupy the catalytic sites. At the same time, the stirring mechanism is controlled to reduce the speed to 50 r / min, the dehydrogenation reaction stops, and the catalyst is adsorbed onto the graphene-based composite bed 20 attached to the propeller blade 16, and the solid and liquid are separated. If the reaction needs to continue, add an appropriate amount of disodium ethylenediaminetetraacetate from the auxiliary feed port 27 of the reaction chamber to recover zinc ions and restore catalyst activity. Control the temperature control mechanism to raise the temperature of the reaction chamber back to the optimal catalytic temperature within 3 seconds, and control the stirring mechanism to immediately restore the rated speed of 3000 r / min to achieve rapid restart of the dehydrogenation reaction.

Claims

1. A cyclone-coupled membrane filtration type directional catalytic hydrogen generator, comprising an outer chamber (1), characterized in that, The outer compartment (1) includes a lower tank (3) and an upper tank (4) that are interconnected. The lower tank (4) is equipped with a reaction mechanism, and the upper tank (4) is equipped with a compression mechanism and a filtration mechanism; The reaction mechanism is used for reacting materials and adding catalysts. A stirring mechanism is coaxially arranged at the bottom of the reaction mechanism to stir materials and form a three-dimensional vortex. A graphene-based composite bed (20) is provided on the surface of the blades of the stirring mechanism to adsorb the catalyst. A temperature control mechanism is provided on the reaction mechanism to control the reaction temperature. The gas outlet of the reaction mechanism is connected to the gas inlet of the compression mechanism through a connecting pipe (12). The compression mechanism is used to compress gas and provide the driving force for filtration. A filtration mechanism is provided inside the compression mechanism near the gas outlet to perform tiered gradient filtration of the compressed gas. The filtered gas enters the storage unit through the conveying mechanism.

2. The cyclone-coupled membrane filtration type directional catalytic hydrogen generator according to claim 1, characterized in that, The reaction mechanism includes an inner chamber (2) located in the lower tank (3). The upper inclined surface of the lower tank (3) is provided with a raw material port (5) that communicates with the inner chamber (2). The lower outer surface of the upper tank (4) is provided with an auxiliary feed port one (6), an auxiliary feed port two (7), and a catalyst feed port (8), and the auxiliary feed port one (6), the auxiliary feed port two (7), and the catalyst feed port (8) are respectively connected to the inner chamber (2).

3. The cyclone-coupled membrane filtration type directional catalytic hydrogen generator according to claim 2, characterized in that, The stirring mechanism includes a base (22) coaxially disposed at the bottom of the inner chamber (2), a central base (17) coaxially rotatably mounted on the top of the base (22), a propeller blade (16) coaxially fixed on the central base (17) to form synchronous rotation, a magnetic levitation drive adapter shaft (18) coaxially disposed at the center of the central base (17), a levitation electromagnet (21) fixed on the magnetic levitation drive adapter shaft (18) inside the central base (17), a magnetic field generating coil (19) coaxial with the base (22) is disposed at the middle of the bottom of the lower tank (3), and the magnetic levitation electromagnet (21) with magnetism after being energized forms a rotation around the axis under the magnetic field of the magnetic field generating coil (19), and the blades of the propeller blade (16) are uniformly coated with a graphene-based composite bed layer (20).

4. A cyclone-coupled membrane filtration-type directional catalytic hydrogen generator according to claim 1 or 3, characterized in that, The graphene-based composite bed (20) is composed of graphite and activated carbon at a mass ratio of 4:1, with a coating thickness of 60μm~100μm and a mesopore diameter of 2nm~50nm.

5. A cyclone-coupled membrane filtration-type directional catalytic hydrogen generator according to claim 2, characterized in that, The temperature control mechanism includes a micro heat exchange channel (11) spirally arranged around the outer wall of the inner chamber (2). The micro heat exchange channel (11) is connected to the external heat exchanger and the circulating pump to provide the basic reaction temperature to the inner chamber (2). The inner wall of the inner chamber (2) is equipped with an infrared temperature probe (14) and several miniature PTC heaters (13). The infrared temperature probe (14) is used to monitor the temperature inside the inner chamber (2), and the miniature PTC heaters (13) are used for thermal compensation and fine adjustment of the temperature inside the inner chamber (2). The infrared temperature probe (14), the miniature PTC heaters (13) and the temperature display (15) located on the outside of the outer chamber (1) are all electrically connected to the industrial PLC control system.

6. A cyclone-coupled membrane filtration-type directional catalytic hydrogen generator according to claim 2, characterized in that, The compression mechanism includes a housing (31) located inside the upper tank (4). The air inlet end of the housing (31) is connected to the top of the inner chamber (2) through a connecting pipe (12). The housing (31) is divided into two chambers, a compression chamber (32) and a temporary storage chamber (33), by a partition (34). The partition (34) is evenly provided with a number of compression holes (35). The diameter of the compression hole (35) near the compression chamber (32) is larger than the diameter of the compression hole (35) near the temporary storage chamber (33). When the gas enters the temporary storage chamber (33) through the compression hole (35), a compression fit is formed. The compression chamber (32) is equipped with a reciprocating structure that drives the rotating screw disc body (45) to reciprocate, thereby compressing the gas once and compressing it a second time when the gas passes through the compression hole (35). The filtration mechanism is located in the temporary storage chamber (33). After the gas enters, it passes through the tiered filtration system before entering the conveying mechanism.

7. A cyclone-coupled membrane filtration-type directional catalytic hydrogen generator according to claim 6, characterized in that, The reciprocating mechanism includes a reciprocating servo motor (36) mounted on the partition (34) near the temporary storage chamber (33). A reciprocating screw (38) is coaxially mounted in the compression chamber (32). The output shaft of the reciprocating servo motor (36) passes through the partition (34) and rotates synchronously with the reciprocating screw (38) through a coupling (37). A movable seat (42) is mounted on the reciprocating screw (38) through a ball screw nut (39). One side of the movable seat (42) is penetrated by a limiting rod (41) to form a limiting slide, and the limiting rod (41) is parallel to the reciprocating screw (38). The bottom of the movable seat (42) is provided with an outwardly protruding mounting annular protrusion (43), and the outer wall of the mounting annular protrusion (43) is coaxially mounted with the screw disc body (45) via a bearing (44). The disc body (45) includes a disc body (46), with a mounting hole (49) in the middle for mounting the bearing (44). The outer side of the disc body (46) is provided with several equally spaced helical teeth (47) around the axis. Adjacent helical teeth (47) cooperate to form a flow channel (48). When the disc body (46) rotates, it forms a propeller-shaped structure. Gas flows through the flow channel (48) to form a flow channel. The outer side of the helical teeth (47) cooperates with the inner wall of the compression chamber (32) to form an airflow channel (53). A servo motor (50) for rotation is provided on one side of the top of the movable seat (42). The output shaft of the servo motor (50) passes through the movable seat (42) axially and exits through the inner circle of the mounting annular protrusion (43). A drive gear (51) is coaxially provided at the end of the output shaft of the servo motor (50). A driven gear ring (52) is provided around the mounting hole (49) at the bottom of the disc (46). The driven gear ring (52) is coaxial with the disc (46). The outer side of the drive gear (51) meshes with the inner side of the driven gear ring (52) to form a transmission.

8. A cyclone-coupled membrane filtration-type directional catalytic hydrogen generator according to claim 1 or 6, characterized in that, The filtration mechanism includes at least two filtration layers; The first-stage filter layer (54) is located at the front along the gas conveying direction. The first-stage filter layer (54) is a nanofiltration membrane used to screen out silanol impurities. The secondary filter layer (55) is located at the front along the gas delivery direction. The secondary filter layer (55) is a polyimide composite membrane used to remove trace amounts of silanol and hydrocarbon byproducts.

9. A cyclone-coupled membrane filtration-type directional catalytic hydrogen generator according to claim 2, characterized in that, The conveying mechanism includes a main air outlet (9) located at the top of the upper tank (4) and sealed to the air outlet of the compression mechanism. The main air outlet (9) is sealed to the air inlet of the storage container (29) of the storage mechanism through the conveying pipeline (26). A gas flow regulating valve (27) and a pressure gauge (28) are sequentially installed along the conveying direction on the conveying pipeline (26); The gas storage container (29) is provided with a venting port (30).

10. A method of using a hydrogen generator, characterized in that, The preparation of hydrogen using a cyclone-coupled membrane filtration directional catalytic hydrogen generator as described in any one of claims 1 to 9 includes the following steps: In the hydrogen production process, tetramethyldisiloxane is first injected into the reaction mechanism in the lower tank (3), and then palladium carbon nanosphere catalyst is injected. The stirring mechanism is started, and the stirring mechanism drives the blades to rotate at a speed of 3000 r / min, forming a three-dimensional swirling field inside the reaction chamber, so that the tetramethyldisiloxane liquid and the palladium carbon nanosphere catalyst can fully contact each other. Simultaneously, the temperature control mechanism is activated to raise the temperature inside and outside the reaction mechanism, control the reaction temperature, and maintain the temperature within the optimal activity temperature range of the palladium carbon nanosphere catalyst. The mixed gas enters the compression mechanism from the reaction mechanism for gas compression. During the compression process, the mixed gas is controlled to pass through the filtration mechanism for hierarchical gradient filtration to obtain high-purity hydrogen. High-purity hydrogen gas is transported through a conveying mechanism and stored in a storage facility. When the reaction needs to be terminated, additional solid zinc sulfate is added to the reaction mechanism. Zinc ions combine with palladium carbon nanosphere catalyst to occupy catalytic sites. At the same time, the stirring speed is controlled to be reduced to 50 r / min. The dehydrogenation reaction stops, and the catalyst is adsorbed onto the graphene-based composite bed (20) on the surface of the blade, and solid-liquid separation occurs. When the reaction needs to continue, disodium ethylenediaminetetraacetate is added to the reaction unit to recover zinc ions and restore catalyst activity. The temperature inside the reaction unit is raised to the optimal catalytic temperature within 3 seconds by the temperature control mechanism, and the stirring mechanism is immediately restored to the rated speed of 3000 r / min to achieve rapid restart of the dehydrogenation reaction.

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