Novel chemical-looping hydrogen generator

Abstract

The utility model relates to the technical field of hydrogen production equipment, in particular to a novel chemical looping hydrogen generator which comprises a reaction container, a lower rotating mechanism, an upper rotating mechanism, a feeding mechanism and a steam generator, a plurality of annular protrusions with different diameters are concentrically arranged on the upper surface of a lower rotating disc at intervals, the upper rotating disc and the lower rotating disc of the upper rotating mechanism are close to each other and share the same rotating shaft, a plurality of annular net cylinders with different diameters are concentrically arranged on the lower surface of the upper rotating disc at intervals, and the annular net cylinders and the annular protrusions are staggered with each other with gaps reserved. The metal powder filled in the feeding mechanism enters the lower rotating disc through the upper rotating mechanism, high-temperature steam generated in the steam generator enters the upper rotating disc through the lower rotating mechanism, and the metal powder moves outwards in staggered gaps, so that the reaction time can be prolonged; the up-down rotating mechanism enables the metal powder to be kept in a discrete flying state, the contact area can be increased, and the conversion efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen production equipment technology, specifically to a novel chemical loop hydrogen generator. Background Technology

[0002] Hydrogen energy, as an ultimate energy source, possesses characteristics such as being renewable, zero-emission, high calorific value, storable, and widely applicable. It is widely believed that hydrogen can become a green energy source to replace fossil fuels in the future. As a strategic emerging industry, the hydrogen energy industry chain is quite long, including many links such as hydrogen production, storage, transportation, refueling, and utilization. Each link has its own product development direction, and they are all interconnected, offering significant potential for development at every stage of the industry chain.

[0003] There are various hydrogen production routes, but the cost varies greatly due to different raw material prices. Currently, the most commonly used method is water electrolysis. While the water electrolysis process is not complex, it consumes too much electricity, and the cost of large-scale hydrogen production is far higher than that of hydrogen production from coal or natural gas. Therefore, this method has no competitive advantage. The chemical process of producing hydrogen by reacting metals with water is a green hydrogen production process. However, the reaction of a single metal with water has many problems. Although some single metals have high reactivity, an oxide film forms on their surface during the reaction, hindering further reaction between the metal and water. Therefore, current hydrogen production equipment based on metal-water reactions mainly improves the conversion rate by changing the form of the metal, such as turning aluminum into aluminum foil, aluminum powder, or flakes, thereby increasing the contact surface area.

[0004] Patent application number 202220226109.7 discloses a metal pyrolysis steam hydrogen production system. This system includes a steam source, a pyrolysis reactor, a condenser, and a gas-liquid separator. The pyrolysis reactor contains a replaceable pyrolysis agent, which is a porous, block-shaped composite metal material formed by molding a mixture of various metal materials. However, the pyrolysis agent has a limited contact surface area, and hydrogen production must be stopped when replacing it. This hydrogen production system suffers from low conversion rate, complex operation steps, and low efficiency. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a new type of chemical chain hydrogen generator that can increase the contact area between high-temperature water vapor and metal powder and improve the conversion efficiency.

[0006] To solve the above-mentioned technical problems, this utility model provides a novel chemical looping hydrogen generator, comprising:

[0007] A reaction vessel, which includes a discharge port and a gas outlet;

[0008] The lower rotating mechanism includes a lower turntable and annular protrusions. The lower turntable is rotatably disposed in the reaction vessel, and multiple annular protrusions of different diameters are concentrically and spaced apart on the upper surface of the lower turntable.

[0009] The upper rotating mechanism includes an upper turntable and an annular mesh cylinder. The upper turntable and the lower turntable are close to each other and are arranged on the same rotation axis. Multiple annular mesh cylinders of different diameters are concentrically and spaced apart on the lower surface of the upper turntable. The annular mesh cylinders and the annular protrusions are interlaced and have gaps.

[0010] The feeding mechanism has a feeding port connected to the upper rotating mechanism, through which the internally filled metal powder enters the lower turntable;

[0011] A steam generator, the steam inlet of which is connected to the lower rotating mechanism, and the high-temperature steam generated inside enters the upper turntable through the lower rotating mechanism.

[0012] Preferably, in the above scheme, the lower rotating mechanism further includes a first hollow rotating shaft and a first driving mechanism. The upper end of the first hollow rotating shaft passes through the upper surface of the lower turntable, and the lower end passes through the bottom of the reaction vessel and is connected to the gas inlet. The first driving mechanism is used to drive the first hollow rotating shaft and the lower turntable to rotate horizontally.

[0013] Preferably, in the above scheme, the lower rotating mechanism further includes fins, the cross-section of the annular protrusion is set as a trapezoid with a narrow top and a wide bottom, and the outer surfaces of the plurality of annular protrusions are provided with vertical fins.

[0014] Preferably, in the above scheme, the upper rotating mechanism further includes a second hollow rotating shaft and a second driving mechanism. The lower end of the second hollow rotating shaft passes through the lower surface of the upper turntable, and the upper end passes through the top of the reaction vessel and is connected to the feed port. The second driving mechanism is used to drive the second hollow rotating shaft and the upper turntable to rotate horizontally. The rotation direction of the upper turntable is opposite to that of the lower turntable.

[0015] Preferably, in the above scheme, the feeding mechanism includes a storage bin, a first feeding screw and a first drive motor, the feeding port is located at the bottom of the storage bin, the upper end of the first feeding screw is connected to the output end of the first drive motor, and the lower end is rotatably disposed in the second hollow shaft.

[0016] Preferably, in the above scheme, the feeding mechanism further includes a spindle-shaped guide, the lower end of the first feeding screw passes through the second hollow rotating shaft and is connected to the upper end of the guide, and the lower end of the guide is located directly above the upper end of the first hollow rotating shaft.

[0017] Preferably, the above scheme further includes a material distribution mechanism and a recycling bin. The inlet of the material distribution mechanism is connected to the outlet, the first outlet is connected to the air supply port, and the second outlet is connected to the recycling bin.

[0018] Preferably, in the above scheme, the material distribution mechanism includes a tube, a second feeding screw, and a second drive motor. The tube is sleeved on the second feeding screw, and one end of the second feeding screw is connected to the output end of the second drive motor.

[0019] Preferably, in the above scheme, the first outlet and the second outlet of the material distribution mechanism are located at opposite ends of the pipe body, and the inlet is located on the pipe body between the first outlet and the second outlet.

[0020] Preferably, in the above scheme, the metal powder is one of aluminum powder, magnesium powder, aluminum-magnesium alloy powder, and aluminum-magnesium-lithium alloy powder.

[0021] Compared with existing technologies, this utility model has the following beneficial effects:

[0022] 1. A novel chemical looping hydrogen generator of this utility model includes a reaction vessel, a lower rotating mechanism, an upper rotating mechanism, a feeding mechanism, and a steam generator. The lower rotating mechanism's lower turntable is horizontally rotatable within the reaction vessel. Multiple annular protrusions of different diameters are concentrically and spaced apart on the upper surface of the lower turntable. The upper rotating mechanism's upper and lower turntables are close to each other and share a common rotation axis. Multiple annular mesh cylinders of different diameters are concentrically and spaced apart on the lower surface of the upper turntable. The annular mesh cylinders and annular protrusions are staggered and have gaps. The feeding mechanism... The internally filled metal powder enters the lower rotating disk through the upper rotating mechanism, while the high-temperature steam generated inside the steam generator enters the upper rotating disk through the lower rotating mechanism. Under the centrifugal force of the lower rotating disk and the action of the high-temperature steam, the metal powder moves from the inside to the outside. The alternating blocking effect of the annular mesh cylinder and the annular protrusions prolongs the reaction time between the metal powder and the high-temperature steam. The combined action of the lower and upper rotating mechanisms keeps the metal powder in a dispersed and flying state, which increases the contact area between the high-temperature steam and the metal powder and improves the conversion efficiency.

[0023] 2. In this invention, the metal powder will collide with the high-speed rotating annular mesh cylinder and annular protrusion under the action of centrifugal force, which will destroy the oxide film on the surface of the metal powder and further improve the utilization efficiency of the metal powder; the outer side of the annular protrusion is provided with vertical fins, which can increase the force on the metal powder to move outward when rotating.

[0024] 3. The feeding mechanism of this utility model includes a storage bin, a first feeding screw, a first drive motor, and a spindle-shaped guide. The upper end of the first feeding screw is connected to the output end of the first drive motor, and the lower end passes through the second hollow rotating shaft and is connected to the upper end of the guide. The lower end of the guide is located directly above the upper end of the first hollow rotating shaft, which can prevent the high-temperature water vapor passing through the first hollow rotating shaft from directly impacting the second hollow rotating shaft.

[0025] 4. The material distribution mechanism of this utility model includes a tube body, a second feeding screw, and a second drive motor. The tube body is sleeved on the second feeding screw, one end of which is connected to the output end of the second drive motor. The first outlet and the second outlet of the material distribution mechanism are located at opposite ends of the tube body. The inlet is located on the tube body between the first outlet and the second outlet. The inlet of the material distribution mechanism is connected to the discharge port, the first outlet is connected to the air supply port, and the second outlet is connected to the recovery box. By controlling the second drive motor to rotate forward or backward, the metal powder in the discharge port can be distributed to the first outlet or the second outlet. This enables control over the reaction time of the metal powder with high-temperature steam, further improving the conversion efficiency. Attached Figure Description

[0026] Figure 1 This is a first-view structural schematic diagram of a novel chemical chain hydrogen generator according to this utility model.

[0027] Figure 2 This is a second-view structural schematic diagram of a novel chemical chain hydrogen generator according to this utility model.

[0028] Figure 3 This is a third-view structural schematic diagram of a novel chemical chain hydrogen generator according to this utility model.

[0029] Figure 4 In this utility model Figure 3 A cross-sectional view of a novel chemical loop hydrogen generator in the AA direction.

[0030] Figure 5 This is a schematic diagram of the internal structure of the reaction vessel of this utility model.

[0031] Figure 6 This is a schematic diagram of the lower rotating mechanism of this utility model.

[0032] Figure 7 This is a schematic diagram of the installation structure of the upper rotating mechanism of this utility model.

[0033] Figure 8 This is a schematic diagram of the internal structure of the upper rotating mechanism of this utility model.

[0034] Wherein, 1-reaction vessel, 11-discharge port, 111-tee fitting, 12-gas outlet, 13-cover;

[0035] 2-Lower rotating mechanism, 21-Lower turntable, 22-Annular protrusion, 23-First hollow rotating shaft, 24-First driving mechanism, 25-Fin;

[0036] 3-Upper rotating mechanism, 31-Upper turntable, 32-Annular mesh cylinder, 33-Second hollow rotating shaft, 34-Second driving mechanism;

[0037] 4-Feeding mechanism, 41-Feeding port, 42-Storage bin, 421-Hinge bin door, 43-First feeding screw, 44-First drive motor, 45-Guide component;

[0038] 5-Steam generator, 51-Air inlet, 52-Mixing chamber;

[0039] 6-Distribution mechanism, 61-Pipe body, 62-Second feeding screw, 63-Second drive motor;

[0040] 7-Recycling bin, 71-Pressure relief valve, 8-Fixing frame, 9-Support rod. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0045] like Figure 1-8 As shown, this utility model discloses a novel chemical loop hydrogen generator, including a reaction vessel 1, a lower rotating mechanism 2, an upper rotating mechanism 3, a feeding mechanism 4, and a steam generator 5. The reaction vessel 1 includes a discharge port 11 and a gas outlet 12. The lower rotating mechanism 2 includes a lower rotating disk 21 and annular protrusions 22. The lower rotating disk 21 is horizontally rotatable within the reaction vessel 1. Multiple annular protrusions 22 of different diameters are concentrically and spaced apart on the upper surface of the lower rotating disk 21. The upper rotating mechanism 3 includes an upper rotating disk 31 and an annular mesh cylinder 32. The upper turntable 31 and the lower turntable 21 are arranged close to each other and share a common rotation axis. Multiple annular mesh cylinders 32 of different diameters are concentrically and spaced apart on the lower surface of the upper turntable 31. The annular mesh cylinders 32 and the annular protrusions 22 are staggered and have gaps. The feeding port 41 of the feeding mechanism 4 is connected to the upper rotating mechanism 3. The metal powder filled inside enters the lower turntable 21 through the upper rotating mechanism 3. The air outlet 51 of the steam generator 5 is connected to the lower rotating mechanism 2. The high-temperature water vapor generated inside enters the upper turntable 31 through the lower rotating mechanism 2. In this embodiment, the metal powder moves from the inside to the outside under the action of centrifugal force and high-temperature water vapor of the lower turntable 21. Under the staggered blocking effect of the annular mesh cylinders 32 and the annular protrusions 22, the reaction time between the metal powder and the high-temperature water vapor can be extended. Under the combined action of the lower rotating mechanism 2 and the upper rotating mechanism 3, the metal powder is kept in a dispersed and flying state, which can increase the contact area between the high-temperature water vapor and the metal powder and improve the conversion efficiency. In addition, under the action of centrifugal force, the metal powder will also collide with the high-speed rotating annular mesh cylinder 32 and annular protrusion 22, which will destroy the oxide film on the surface of the metal powder and further improve the utilization rate of the metal powder.

[0046] It is worth noting that the metal powder used in this embodiment is one of aluminum powder, magnesium powder, aluminum-magnesium alloy powder, and aluminum-magnesium-lithium alloy powder. When the temperature is below 350°C, aluminum reacts with water vapor to produce hydrogen and aluminum hydroxide. When the temperature is above 350°C, aluminum hydroxide will further decompose into aluminum oxide. When the temperature is above 800°C, the reaction rate between aluminum and water vapor is the fastest. By increasing the pressure and secondary heating, water vapor can be heated to a higher temperature. However, the corresponding equipment cost and energy consumption will also increase. Usually, the water vapor temperature in the boiler can be maintained at around 370°C. Therefore, the steam generator 5 in this embodiment is used to convert water into high-temperature water vapor above 350°C.

[0047] Continue to refer to Figure 5 The reaction vessel 1 is mounted on the fixing frame 8 by bolt assembly. It has a detachable cover 13 on the top and two symmetrical funnel-shaped discharge ports 11 at the bottom for easy collection of metal powder. The gas outlet 12 is located on the cover 13. After the metal powder in the reaction vessel 1 reacts with high-temperature water vapor, hydrogen gas can be generated. The mixed gas in the reaction vessel 1 enters the external condenser, gas-liquid separator and other processing equipment through the gas outlet 12 and pipeline for easy purification and storage of hydrogen gas.

[0048] Continue to refer to Figure 6 In this embodiment, the lower rotating mechanism 2 also includes a first hollow rotating shaft 23, a first driving mechanism 24, and fins 25. The upper end of the first hollow rotating shaft 23 passes through the upper surface of the lower turntable 21, and the lower end passes through the bottom of the reaction vessel 1 and is connected to the gas inlet 51. The first driving mechanism 24 is used to drive the first hollow rotating shaft 23 and the lower turntable 21 to rotate horizontally. The outer surfaces of the multiple annular protrusions 22 are provided with vertical fins 25, which can increase the force on the metal powder moving upward and outward during rotation. Specifically, the cross-section of the annular protrusions 22 is set as a trapezoid with a narrow top and a wide bottom. The heights of two adjacent annular protrusions 22 are different. In this embodiment, there are four annular protrusions 22, including three different heights: high, medium, and low. The height order from the inside to the outside is medium-low, high-low. A pulley is installed at the lower part of the first hollow rotating shaft 23, and the motor of the first driving mechanism 24 drives the first hollow rotating shaft 23 to rotate through the pulley assembly.

[0049] Continue to refer to Figure 7-8In this embodiment, the upper rotating mechanism 3 further includes a second hollow rotating shaft 33 and a second driving mechanism 34. The lower end of the second hollow rotating shaft 33 passes through the lower surface of the upper turntable 31, and the upper end passes through the top of the reaction vessel 1 and is connected to the feed port 41. The second driving mechanism 34 is used to drive the second hollow rotating shaft 33 and the upper turntable 31 to rotate horizontally. The rotation direction of the upper turntable 31 is opposite to that of the lower turntable 21. Specifically, the upper end of the second hollow rotating shaft 33 passes through the middle of the cover 13, and a gear is installed on the upper part of the second hollow rotating shaft 33. The motor of the second driving mechanism 34 drives the second hollow rotating shaft 33 to rotate through the gear set.

[0050] Preferably, the surfaces of the lower turntable 21, the annular protrusion 22, the upper turntable 31, and the annular mesh cylinder 32 are all set to rough frosted surfaces, which can more effectively break the oxide film on the surface of the metal powder.

[0051] Preferably, a rotary sealing ring is provided at the connection between the first hollow rotating shaft 23 and the reaction vessel 1 and the gas inlet 51, and a rotary sealing ring is provided at the connection between the second hollow rotating shaft 33 and the cover 13 and the feed inlet 41, which can improve the airtightness and rotation stability of the reaction vessel 1.

[0052] Continue to refer to Figure 3-4 In this embodiment, the feeding mechanism 4 includes a storage bin 42, a first feeding screw 43, and a first drive motor 44. The feeding port 41 is located at the bottom of the storage bin 42. The upper end of the first feeding screw 43 is connected to the output end of the first drive motor 44, and its lower end is rotatably mounted horizontally within the second hollow rotating shaft 33. Specifically, the storage bin 42 has a funnel-shaped structure, with its outer wall fixedly connected to the cover 13 via three support rods 9. The first drive motor 44 is fixedly installed at the top center of the storage bin 42, and its output end passes through the top of the storage bin 42 and connects to the upper end of the first feeding screw 43. The top of the storage bin 42 is equipped with a hinged door 421 for timely addition of metal powder. It is worth noting that the rotation direction of the first feeding screw 43 when conveying metal powder downwards is opposite to the rotation direction of the second hollow rotating shaft 33, which improves the conveying efficiency of the metal powder.

[0053] Furthermore, the feeding mechanism 4 also includes a spindle-shaped guide 45. The lower end of the first feeding screw 43 passes through the second hollow rotating shaft 33 and is connected to the upper end of the guide 45. The lower end of the guide 45 is located directly above the upper end of the first hollow rotating shaft 23. The first hollow rotating shaft 23 and the second hollow rotating shaft 33 are arranged with the same rotation axis. The diameter of the middle part of the guide 45 is larger than the diameter of the first hollow rotating shaft 23 and the second hollow rotating shaft 33, which can prevent the high-temperature water vapor passing through the first hollow rotating shaft 23 from directly impacting the second hollow rotating shaft 33.

[0054] Continue to refer to Figure 2This embodiment also includes a material distribution mechanism 6 and a recycling box 7. The inlet of the material distribution mechanism 6 is connected to the outlet 11, the first outlet is connected to the air inlet 51, and the second outlet is connected to the recycling box 7. The material distribution mechanism 6 is used to distribute the metal powder in the outlet 11 to the first outlet or the second outlet. Specifically, the two outlets 11 are respectively connected to the two ports of the three-way connector 111, and the third port of the three-way connector 111 is connected to the inlet of the material distribution mechanism 6. Further, the material distribution mechanism 6 includes a tube body 61, a second feeding screw 62, and a second drive motor 63. The tube body 61 is sleeved on the second feeding screw 62, and one end of the second feeding screw 62 is connected to the output end of the second drive motor 63. The first outlet and the second outlet of the material distribution mechanism 6 are located at opposite ends of the tube body 61, and the inlet is located on the tube body 61 between the first outlet and the second outlet.

[0055] Specifically, the steam generator 5 includes a mixing chamber 52, the bottom of which is connected to the air inlet 51, and the top of which is connected to the lower end of the first hollow rotating shaft 23. The second drive motor 63 is mounted on the fixed frame 8, and its output end is sealed and rotatably connected to the first end of the tube body 61 and fixedly connected to one end of the second feeding screw 62. The second end of the tube body 61 passes through the side wall of the mixing chamber 52 and extends to the middle of the mixing chamber 52. The inlet of the distributing mechanism 6 is located above the middle of the tube body 61, and the second end of the tube body 61 is set as the first outlet of the distributing mechanism 6. The second outlet of the distributing mechanism 6 is located below the first end of the tube body 61. The recovery box 7 is equipped with a pressure relief valve 71.

[0056] Understandably, in this embodiment, the first drive mechanism 24, the second drive mechanism 34, the first drive motor 44, and the second drive motor 63 are electrically connected to the control system. When the second drive motor 63 rotates forward, the metal powder in the outlet 11 is conveyed to the first outlet by the second feeding screw 62. After mixing with high-temperature steam in the mixing chamber 52, it is reintroduced into the reaction vessel 1, achieving precise control over the reaction time of the metal powder and high-temperature steam, which can further improve the conversion efficiency. When the second drive motor 63 rotates in reverse, the metal powder in the outlet 11 is conveyed to the second outlet by the second feeding screw 62 and then enters the recovery box 7. In addition, by programmably controlling the working state of the drive mechanism and the drive motor through the control system, the operation steps can be simplified and the work efficiency improved.

[0057] In summary, the novel chemical chain hydrogen generator in this embodiment allows metal powder to move from the inside out under the centrifugal force of the lower rotating disc 21 and the action of high-temperature steam. The alternating blocking action of the annular mesh cylinder 32 and the annular protrusions 22 prolongs the reaction time between the metal powder and the high-temperature steam. The combined action of the lower rotating mechanism 2 and the upper rotating mechanism 3 keeps the metal powder in a dispersed, airy state, increasing the contact area between the high-temperature steam and the metal powder and improving conversion efficiency. Under the action of centrifugal force, the metal powder also collides with the high-speed rotating annular mesh cylinder 32 and the annular protrusions 22, which breaks down the oxide film on the surface of the metal powder, improving the utilization rate of the metal powder. By controlling the forward or reverse rotation of the second drive motor 63, the metal powder in the discharge port 11 can be distributed to the first or second outlet, enabling control over the reaction time between the metal powder and the high-temperature steam, further improving conversion efficiency.

[0058] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A novel chemical looping hydrogen generator characterized in that, The application relates to a powder sintering device. The device comprises a reaction container, a lower rotating mechanism, an upper rotating mechanism, a feeding mechanism and a steam generator. The reaction container comprises a discharge port and a gas outlet. The lower rotating mechanism comprises a lower rotating disc and annular protrusions. The upper rotating mechanism comprises an upper rotating disc and annular mesh tubes. The feeding mechanism is connected with the upper rotating mechanism.

2. A novel chemical looping hydrogen generator according to claim 1, characterized in that, The steam generator is connected with the lower rotating mechanism.

3. A novel chemical looping hydrogen generator according to claim 2, characterized in that, The lower rotating mechanism further comprises a first hollow rotating shaft and a first driving mechanism.

4. A novel chemical looping hydrogen generator according to claim 2, characterized by, The annular protrusions have a trapezoidal cross section.

5. A novel chemical looping hydrogen generator according to claim 4, characterized in that, The upper rotating mechanism further comprises a second hollow rotating shaft and a second driving mechanism.

6. A novel chemical looping hydrogen generator according to claim 5, characterized in that, The feeding mechanism further comprises a storage bin, a first feeding screw and a first driving motor.

7. A novel chemical looping hydrogen generator according to claim 2, characterized by, The feeding mechanism further comprises a spindle-shaped flow guide.

8. A novel chemical looping hydrogen generator according to claim 7, characterized by, The device further comprises a distribution mechanism and a recovery tank.

9. A novel chemical looping hydrogen generator according to claim 8, characterized by, The distribution mechanism comprises a pipe body, a second feeding screw and a second driving motor.

10. A novel chemical looping hydrogen generator according to claim 1, characterized by, The first outlet and the second outlet of the distribution mechanism are arranged at two ends of the pipe body. The metal powder is one of aluminum powder, magnesium powder, aluminum-magnesium alloy powder and aluminum-magnesium-lithium alloy powder.

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