Improved hydrogen production device

Abstract

The application relates to the hydrogen production technical field and discloses an improved hydrogen production device with high efficiency, which comprises a tank body, a support, a gland and an exhaust pipe and further comprises: a reaction tank which is installed on the top of the inner wall of the tank body through gland pressing, a plurality of groups of heat exchange pipes are installed in the reaction tank, and catalysts are filled in the heat exchange pipes; a mixing cylinder which is fixedly installed on the bottom of the inner wall of the tank body, a front surface of the mixing cylinder is provided with two groups of ventilation openings one, and the sealing plate is abutted against the top of the fixed ring. A sealed space is formed between the top of the mixing cylinder and the sealing plate, so that the mixed gas needs to generate pressure to push open the sealing plate upwards and enter the inner cavity of the pressure boosting cylinder, so that the mixed gas reaches the optimal mixing degree and proportion before entering the inner cavity of the pressure boosting cylinder, and the reaction efficiency and the working efficiency of the device are remarkably improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of hydrogen production, in particular to an improved hydrogen production device with high efficiency. BACKGROUND

[0002] Natural gas hydrogen production has the advantages of energy saving, environmental protection, low cost and high efficiency. As a clean energy, the basic principle of natural gas using self-heating technology to produce hydrogen is as follows: high-purity (99%) natural gas (CH4) and water vapor (H2O) after purification process react to generate CO and H2 under the catalysis of catalyst at a high temperature environment of 800-900 DEG C, and then CO and H2O react to generate CO2 under the catalysis of catalyst at a high temperature environment of 200-300 DEG C, so as to achieve the purpose of efficient hydrogen production. In the prior art, the main reaction container of the natural gas hydrogen production device is a plurality of heat exchange pipes filled with catalyst. Natural gas and water vapor enter the inside of the pipe to carry out endothermic reaction, but the mixed gas cannot be fully mixed before entering the reaction container, which leads to that the proportion of the mixed gas entering the inside of the heat exchange pipe cannot reach the best, thereby restricting the progress of the whole reaction and reducing the reaction efficiency. At the same time, the distribution mode of the plurality of heat exchange pipes filled with catalyst is unreasonable, which leads to that the mixed gas cannot uniformly enter different heat exchange pipes, and then the catalyst consumption period in different heat exchange pipes is not the same, thereby affecting the subsequent maintenance. Therefore, it is urgent to solve the problem. SUMMARY

[0003] The application provides an improved hydrogen production device with high efficiency, which has the advantages of sufficient reaction and unified catalyst consumption period, so as to solve the problems of insufficient reaction and non-uniform catalyst consumption period in the prior art.

[0004] In order to achieve the above-mentioned purpose, the application adopts the following technical scheme: an improved hydrogen production device with high efficiency, comprising a tank body, a support, a gland and an exhaust pipe, further comprising:

[0005] A reaction tank is installed on the top of the inner wall of the tank body through the gland, a plurality of heat exchange pipes are installed in the reaction tank, and the inside of the heat exchange pipe is filled with catalyst;

[0006] A mixing cylinder is fixedly installed on the bottom of the inner wall of the tank body, two groups of ventilation openings are formed on the front surface of the mixing cylinder, a plurality of air vent grooves are formed on the top of the mixing cylinder, a plurality of baffle strips are fixedly installed on the top of the mixing cylinder, and the baffle strips cover the top of the air vent grooves;

[0007] The top of the mixing cylinder is fixedly installed with a booster cylinder, the inner wall of the booster cylinder is provided with a one-way flow assembly, the top of the booster cylinder is fixedly installed with an exhaust mechanism, the exhaust mechanism comprises a gas outlet cylinder fixedly installed at the top of the booster cylinder, the inside of the gas outlet cylinder is provided with a piston, the bottom end of the piston is fixedly connected with a connecting plate, and a spring is elastically connected between the piston and the connecting plate.

[0008] Preferably, the front surface of the tank body is fixedly connected with two groups of air inlet pipes, the front surface of the mixing cylinder is provided with two groups of ventilation openings one, the two groups of air inlet pipes are communicated with the two groups of ventilation openings one respectively, the bottom of the tank body is installed with a motor, the output shaft of the motor is rotatably installed at the bottom of the gland, and the gland is press-fit installed at the top of the tank body through bolts.

[0009] Preferably, the heat exchange pipes are provided in multiple groups and are circumferentially and equidistantly distributed in the inner cavity of the reaction tank, and the number and distribution mode of the exhaust mechanism are the same as those of the heat exchange pipes.

[0010] Preferably, the upper left side and the lower right side of the outer surface of the reaction tank are provided with ventilation openings two, the outer surface of the tank body is respectively installed with a heating steam inlet cylinder and a heating steam outlet cylinder, the heating steam inlet cylinder and the heating steam outlet cylinder are respectively communicated with the two groups of ventilation openings two, the middle part of the inner wall of the tank body is installed with a support ring, and the reaction tank is supported at the top of the support ring.

[0011] Preferably, the hydrogen production device can be repeatedly used for two stages of hydrogen production:

[0012] The first stage: the temperature of the inner cavity of the reaction tank is between 800-900 DEG C, in this stage, the two groups of air inlet pipes are respectively connected with natural gas and water vapor;

[0013] The second stage: the temperature of the inner cavity of the reaction tank is between 200-300 DEG C, in this stage, the two groups of air inlet pipes are respectively connected with the mixed gas of CO and H2 and water vapor.

[0014] Preferably, the top of the inner wall of the gas outlet cylinder is provided with an opening, the middle part of the inner wall of the exhaust mechanism is provided with a sealing hole, and the middle part of the outer surface of the piston is adapted to be sleeved to the inner wall of the sealing hole.

[0015] Preferably, the mixing cylinder further comprises a fan blade fixedly installed at the bottom of the outer surface of the motor, and the fan blade is at the same height as the air inlet pipe.

[0016] Preferably, the cross-sectional shape of the baffle is umbrella-shaped, and the baffle corresponds to the air groove one by one.

[0017] Preferably, the one-way flow assembly comprises a fixed ring fixedly installed at the bottom of the inner wall of the pressure cylinder, the middle part of the inner wall of the pressure cylinder is movably sleeved with a sealing plate, the bottom of the sealing plate abuts against the top of the fixed ring, and the outer diameter value of the sealing plate is smaller than the outer diameter value of the fixed ring.

[0018] Preferably, the top of the reaction tank is fixedly connected with four groups of handles, the four groups of handles are circumferentially and equiangularly distributed on the top of the reaction tank, the bottom of the gland abuts against the top of the handle, and the axial section shape of the handle is U-shaped.

[0019] The beneficial effects of the present application are as follows:

[0020] 1、The device is redesigned and optimized, so that the mixed gas entering the inner cavity of the heat exchange pipe is fully mixed together and reaches the optimal mixing ratio, the reaction tank is arranged at the top, and a mixing cylinder is arranged at the bottom of the inner cavity of the tank body, so that the mixing cylinder mixes the water vapor for preparing hydrogen and natural gas, carbon monoxide and water vapor together, the mixing gas entering the inner cavity of the mixing cylinder is mixed by stirring through the rotation of the fan blade driven by the motor, when the fan blade produces axial thrust upward during rotation, the mixed gas enters the narrowed space at the top of the inner cavity of the mixing cylinder upward, so that the spacing between the molecules of the mixed gas is reduced, then the through area of the mixed gas is narrowed by the ventilation groove opened at the top of the mixing cylinder, so that the mixed gas is accelerated and violently impacts the top of the inner wall of the baffle, the mixing degree of the mixed gas is improved by the impact through the umbrella-shaped narrowing design of the top of the baffle, then the sealing plate abuts against the top of the fixed ring, a sealed space is formed between the mixing cylinder above and the sealing plate, so that the mixed gas needs to generate pressure to push open the sealing plate upward and enter the inner cavity of the pressure cylinder, so that the mixed gas reaches the optimal mixing degree and ratio before entering the inner cavity of the pressure cylinder, and the reaction efficiency and working efficiency of the device are significantly improved.

[0021] 2、Then, the device forms a one-way upward flowing sealed space through the fixing ring and the sealing plate. When the mixed gas enters the inner cavity of the pressure cylinder, the mixed gas enters the bottom of the inner cavity of the gas outlet cylinder through the multiple sets of exhaust mechanisms with the same number and distribution as the heat exchange pipes, so that the mixed gas is prepared to enter the heat exchange pipes upwardly. Then, the sealing hole and the opening on the inner wall of the gas outlet cylinder are used to make the piston continuously move upwardly under the action of the gas pressure for a distance. The spring applies a downward pulling force to the piston to increase the gas pressure and the mixed gas concentration in the inner cavity of the pressure cylinder. In this way, the mixed gas entering the inner cavity of each set of gas outlet cylinder can be basically the same. Finally, when the middle part of the piston is separated from the inner wall of the sealing hole, the opening of the gas outlet cylinder is opened upwardly. At this time, the mixed gas in the multiple sets of gas outlet cylinders can enter the corresponding heat exchange pipes with the same concentration and the same flow rate, so that the catalyst in each set of heat exchange pipes can be consumed synchronously, which facilitates the unified replacement in the later stage and reduces the maintenance cost of the device.

[0022] 3、The device can be set as two sets and used in combination. The stage of preparing hydrogen gas from natural gas is divided into two sets. In the first stage, natural gas is used to produce hydrogen gas and carbon monoxide. Since the carbon monoxide cannot be directly discharged, it needs to be reacted for the second time. The device can be flexibly combined. The carbon monoxide after production can not be discharged to the second set of devices, but can be directly connected with one of the gas inlet pipes through the exhaust pipe, so that the carbon monoxide reenters the device. The above setting can be flexibly adjusted according to the actual use demand. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which constitute a part of this specification, illustrate embodiments of the present disclosure and serve to explain the principles of the present disclosure in a manner advantageous to understand.

[0024] The present disclosure can be more clearly understood and appreciated from the following detailed description, taken in conjunction with the following drawings, in which:

[0025] Figure 1 It is a structural schematic view of the exhaust mechanism and the mixing cylinder of the present application.

[0026] Figure 2 It is a front cross-sectional view of the overall structure of the present application.

[0027] Figure 3 It is a side cross-sectional view of the overall structure of the present application.

[0028] Figure 4 It is an enlarged schematic view of the structure at A in the present application. Figure 3

[0029] Figure 5 It is a schematic view of the appearance of the tank body of the present application.

[0030] ​Figure 6 Separation diagram of the cap, exhaust pipe, bolt, reaction tank, heat exchange pipe and handle of the application;

[0031] Figure 7 Separation diagram of the mixing cylinder of the application;

[0032] Figure 8 Separation diagram of the exhaust mechanism of the application;

[0033] Figure 9 Internal structure diagram of the tank body of the application.

[0034] 1, tank body; 2, support; 3, cap; 4, exhaust pipe; 5, bolt; 6, booster cylinder; 7, exhaust mechanism; 71, air outlet cylinder; 72, piston; 73, spring; 74, connecting plate; 75, open; 76, sealing hole; 8, mixing cylinder; 81, air passage; 82, fan blade; 83, blocking strip; 9, heating steam inlet cylinder; 10, heating steam outlet cylinder; 11, motor; 12, air inlet pipe; 13, reaction tank; 14, heat exchange pipe; 15, handle; 16, fixed ring; 17, sealing plate; 18, air vent one; 19, support ring; 20, air vent two. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0036] Please refer to Figures 1-9 The embodiment discloses an improved hydrogen production device with high efficiency, which comprises a tank body 1, a support 2, a cap 3 and an exhaust pipe 4, and further comprises:

[0037] A reaction tank 13 is press-fitted on the top inner wall of the tank body 1 through the cap 3, and a plurality of heat exchange pipes 14 are installed in the reaction tank 13, and the heat exchange pipes 14 are filled with catalysts;

[0038] A mixing cylinder 8 is fixedly installed on the bottom inner wall of the tank body 1, and two groups of air vents one 18 are formed on the front face of the mixing cylinder 8, a plurality of air passages 81 are formed on the top of the mixing cylinder 8, and a plurality of blocking strips 83 are fixedly installed on the top of the mixing cylinder 8, and the blocking strips 83 cover the air passages 81;

[0039] The top of the mixing cylinder 8 is fixedly installed with the booster cylinder 6, the inner wall of the booster cylinder 6 is provided with a one-way flow assembly, the top of the booster cylinder 6 is fixedly installed with the exhaust mechanism 7, the exhaust mechanism 7 comprises a gas outlet cylinder 71 fixedly installed at the top of the booster cylinder 6, the inside of the gas outlet cylinder 71 is provided with a piston 72, the bottom end of the piston 72 is fixedly connected with a connecting plate 74, and the spring 73 is elastically connected between the piston 72 and the connecting plate 74;

[0040] The device is redesigned and optimized, so that the mixed gas entering the inner cavity of the heat exchange pipe 14 for reaction is fully mixed together and reaches the best mixing ratio. The device sets the reaction tank 13 at the top and sets the mixing cylinder 8 at the bottom of the inner cavity of the tank body 1, so that the mixing cylinder 8 mixes the water vapor for preparing hydrogen and natural gas, carbon monoxide and water vapor together. The motor 11 is arranged to drive the fan blade 82 to rotate, and the mixed gas entering the inner cavity of the mixing cylinder 8 is mixed by stirring. When the fan blade 82 generates axial thrust upward during rotation, the mixed gas enters the narrowed space at the top of the inner cavity of the mixing cylinder 8, so that the distance between the molecules of the mixed gas is reduced. Then, the through air groove 81 opened at the top of the mixing cylinder 8 narrows the passing area of the mixed gas, so as to accelerate the mixed gas and make it impact the top of the inner wall of the blocking strip 83. The umbrella-shaped narrowing design at the top of the blocking strip 83 improves the mixing degree of the mixed gas through impact. The sealing plate 17 is abutted against the top of the fixed ring 16, and a sealed space is formed between the mixing cylinder 8 and the sealing plate 17. The mixed gas needs to generate pressure to push open the sealing plate 17 upward and enter the inner cavity of the booster cylinder 6, so that the mixed gas reaches the best mixing degree and ratio before entering the inner cavity of the booster cylinder 6, which significantly improves the reaction efficiency and working efficiency of the device.

[0041] Then, the device forms a one-way upward flowing sealed space through the fixed ring 16 and the sealing plate 17. When the mixed gas enters the inner cavity of the booster cylinder 6, a plurality of groups of exhaust mechanisms 7 are arranged in the same number and distribution as the heat exchange pipe 14, so that the mixed gas enters the inner cavity of the gas outlet cylinder 71 at the bottom, and the mixed gas is prepared to enter the heat exchange pipe 14 upward. Then, the sealing hole 76 and the open hole 75 opened in the inner wall of the gas outlet cylinder 71 are used to make the piston 72 continuously move upward under the action of gas pressure for a distance. The spring 73 applies a downward pulling force to the piston 72 to increase the gas pressure and the concentration of the mixed gas in the inner cavity of the booster cylinder 6. In this way, the mixed gas entering the inner cavity of each group of gas outlet cylinders 71 can be basically the same. Finally, when the middle part of the piston 72 is separated from the inner wall of the sealing hole 76, the opening of the gas outlet cylinder 71 is opened upward. At this time, the mixed gas in the plurality of groups of gas outlet cylinders 71 can enter the corresponding heat exchange pipe 14 with the same concentration and the same passing flow, so that the catalyst in each group of heat exchange pipes 14 can be consumed synchronously, which is convenient for unified replacement in the later period and reduces the maintenance cost of the device.

[0042] Wherein, the front of the tank body 1 is fixedly connected with two groups of air inlet pipe 12, the front of the mixing cylinder 8 is provided with two groups of ventilation opening 18, two groups of air inlet pipe 12 are communicated with two groups of ventilation opening 18 respectively, the bottom of the tank body 1 is installed with motor 11, the output shaft of the motor 11 is rotatably installed on the bottom of the gland 3, the gland 3 is press-fit installed on the top of the tank body 1 through bolt 5;

[0043] Because the preparation of hydrogen is divided into two stages, the device can be used in two groups, only need to replace the catalyst in the heat exchange pipe 14, ventilation opening 18 and air inlet pipe 12 are communicated, which is convenient for air inlet pipe 12 to enter gas raw material.

[0044] Wherein, the heat exchange pipe 14 is set as multiple groups and is circumferentially equidistantly distributed in the inner cavity of the reaction tank 13, the number and distribution mode of the exhaust mechanism 7 are the same as those of the heat exchange pipe 14;

[0045] The heat exchange pipe 14 is made of metal material with extremely strong thermal conductivity, which can be filled with catalyst and is used for mixed gas reaction, the number and distribution mode of the exhaust mechanism 7 and the heat exchange pipe 14 are the same, so that the mixed gas discharged from the exhaust mechanism 7 can directly enter the heat exchange pipe 14, only need to control the mixed gas amount and concentration of the exhaust mechanism 7 to keep in the same interval.

[0046] Wherein, the upper left side and the lower right side of the outer surface of the reaction tank 13 are provided with ventilation opening 20, the outer surface of the tank body 1 is installed with heating steam inlet cylinder 9 and heating steam outlet cylinder 10 respectively, the heating steam inlet cylinder 9 and the heating steam outlet cylinder 10 are communicated with two groups of ventilation opening 20 respectively, the middle of the inner wall of the tank body 1 is installed with support ring 19, the reaction tank 13 is supported on the top of the support ring 19;

[0047] The reaction tank 13 needs to be disassembled to replace the catalyst inside, therefore, the outer surface of the reaction tank 13 is interference fit with the inner wall of the tank body 1, so as to achieve the purpose of sealing.

[0048] Wherein, the hydrogen production device can be repeatedly used in two stages of hydrogen production:

[0049] The first stage: the temperature of the inner cavity of the reaction tank 13 is between 800-900 DEG C, in this stage, two groups of air inlet pipe 12 are respectively communicated with natural gas and water vapor;

[0050] The second stage: the temperature of the inner cavity of the reaction tank 13 is between 200-300 DEG C, in this stage, two groups of air inlet pipe 12 are respectively communicated with mixed gas of CO and H2 and water vapor;

[0051] The device can be set as two groups and used in combination when in use, and the stage of preparing hydrogen from natural gas is divided into two groups. In the first stage, natural gas produces H2 and CO. Since CO cannot be directly discharged, a secondary reaction is required. However, the device can be flexibly combined. CO can even not be discharged to the second group of devices after production, but can be directly connected with one of the gas inlet pipes 12 to make CO re-enter the device. The above setting can be flexibly adjusted according to actual use requirements.

[0052] The top of the inner wall of the gas outlet cylinder 71 is provided with an opening 75, the middle of the inner wall of the exhaust mechanism 7 is provided with a sealing hole 76, and the middle of the outer surface of the piston 72 is adapted to be sleeved on the inner wall of the sealing hole 76;

[0053] The middle of the outer surface of the piston 72 is sealingly sleeved with the sealing hole 76 to form a seal, which can ensure mutual sealing during upward movement of the piston 72, so that the mixed gas in the exhaust mechanism 7 and the pressure cylinder 6 can be concentrated by pressure and supplemented to the exhaust mechanism 7 in time.

[0054] The mixing cylinder 8 further comprises a fan blade 82 fixedly installed at the bottom of the outer surface of the motor 11, and the fan blade 82 is at the same height as the gas inlet pipe 12.

[0055] The rotation of the fan blade 82 driven by the motor 11 can make the mixed gas entering the mixing cylinder 8 be mixed and stirred, so that the natural gas and CO can be quickly mixed with water vapor.

[0056] The cross-sectional shape of the blocking strip 83 is umbrella-shaped, and the blocking strip 83 corresponds to the air passage 81 one by one.

[0057] The umbrella-shaped design of the blocking strip 83 can make the mixed gas entering the inner wall top thereof be rapidly squeezed together in an instant, which is conducive to improving the mixing degree of the mixed gas.

[0058] The one-way flow assembly comprises a fixed ring 16 fixedly installed at the bottom of the inner wall of the pressure cylinder 6, and a sealing plate 17 movably sleeved on the middle of the inner wall of the pressure cylinder 6. The bottom of the sealing plate 17 abuts against the top of the fixed ring 16, and the outer diameter value of the sealing plate 17 is smaller than the outer diameter value of the fixed ring 16.

[0059] The one-way flow assembly can ensure that the mixed gas enters the inner cavity of the pressure cylinder 6 upwardly, and not downwardly.

[0060] The top of the reaction tank 13 is fixedly connected with four handles 15, the four handles 15 are circumferentially and angularly distributed on the top of the reaction tank 13, the bottom of the gland 3 abuts against the top of the handle 15, and the axial cross-sectional shape of the handle 15 is “U”.

[0061] Reaction tank 13 is installed on the top of support ring 19 by pressing cover 3, and can be removed upwardly by "U" shaped handle 15, which is convenient and fast.

[0062] Working principle:

[0063] The device can be set in two groups during work, and correspond to two stages of hydrogen production respectively:

[0064] First stage: CH4+H2O→CO+H2+heat, in this stage, purified natural gas and water vapor are respectively introduced into the device through two groups of gas inlet pipes 12 and enter the bottom of the inner cavity of tank body 1, motor 11 is started, and fan blade 82 is rotated to stir and mix the natural gas and water vapor entering the inner cavity of mixing cylinder 8 to form first mixed gas, the first mixed gas is driven to rotate by fan blade 82, and is squeezed through air passage 81 under the gradually narrowing space at the top of mixing cylinder 8, at this time, the area of air passage 81 becomes smaller, the first mixed gas is squeezed, then enters the inner wall of baffle 83, and is further mixed in the umbrella-shaped space formed at the bottom of the inner wall of baffle 83, then pushes sealing plate 17 upwardly, the pressure of the first mixed gas is higher and higher under the action of the self-weight of sealing plate 17, and gradually pushes sealing plate 17 upwardly, so that the first mixed gas enters the inner cavity of pressurizing cylinder 6 along the gap between fixed ring 16 and sealing plate 17, with the increasing concentration and pressure of the first mixed gas entering the inner cavity of pressurizing cylinder 6, the gas gradually and uniformly fills the bottom of each exhaust mechanism 7, and simultaneously pushes all pistons 72 to move upwardly, and stretches spring 73, when piston 72 is separated from the inner wall of sealing hole 76, the top opening of gas outlet cylinder 71 simultaneously releases the same amount of first mixed gas, and enters the inside of heat exchange pipe 14, and generates CO and H2 under the action of the catalyst, so as to be discharged along exhaust pipe 4;

[0065] Second stage: CO+H2O→CO2+H2+heat, at this time, the second group of hydrogen production devices can work, in this stage, the mixed gas of H2 and CO generated in the first stage, water vapor are introduced into the inner cavity of mixing cylinder 8 through gas inlet pipe 12, so as to form second mixed gas, the second mixed gas repeats the mixing and reaction procedures of the first stage, and finally generates CO2 and H2, which are discharged from exhaust pipe 4 to obtain H2.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. An improved hydrogen generation device with high efficiency, comprising a tank body (1), a bracket (2), a gland (3) and an exhaust pipe (4), characterized in that, Also include: The reaction tank (13) is press-fit mounted on the top of the inner wall of the tank body (1) through the gland (3), a plurality of groups of heat exchange pipes (14) are mounted in the reaction tank (13), and the heat exchange pipes (14) are filled with catalysts; The mixing cylinder (8) is fixedly installed on the bottom of the inner wall of the tank body (1), two groups of ventilation openings (18) are formed on the front of the mixing cylinder (8), a plurality of groups of ventilation grooves (81) are formed on the top of the mixing cylinder (8), and a plurality of groups of blocking strips (83) are fixedly installed on the top of the mixing cylinder (8), and the blocking strips (83) cover the ventilation grooves (81) above. The top of the mixing cylinder (8) is fixedly installed with a booster cylinder (6), the inner wall of the booster cylinder (6) is provided with a one-way flow assembly, the top of the booster cylinder (6) is fixedly installed with an exhaust mechanism (7), the exhaust mechanism (7) comprises an air outlet cylinder (71) fixedly installed on the top of the booster cylinder (6), the inside of the air outlet cylinder (71) is sealingly sleeved with a piston (72), the bottom end of the piston (72) is fixedly connected with a connecting plate (74), and the piston (72) is elastically connected with the connecting plate (74) through a spring (73).

2. The improved high efficiency hydrogen generation device of claim 1, wherein The front of the tank body (1) is fixedly connected with two groups of air inlet pipes (12), the front of the mixing cylinder (8) is provided with two groups of ventilation openings (18), and the two groups of air inlet pipes (12) are respectively communicated with the two groups of ventilation openings (18). The bottom of the tank body (1) is provided with a motor (11), the output shaft of the motor (11) is rotatably installed on the bottom of the gland (3), and the gland (3) is press-fit mounted on the top of the tank body (1) through the bolt (5).

3. The improved high efficiency hydrogen generation device of claim 2, wherein The heat exchange pipes (14) are arranged in multiple groups and are circumferentially and equidistantly distributed in the inner cavity of the reaction tank (13), and the number and distribution mode of the exhaust mechanism (7) are the same as those of the heat exchange pipes (14).

4. The improved high efficiency hydrogen plant of claim 3, wherein, The left upper side and the right lower side of the outer surface of the reaction tank (13) are provided with ventilation openings (20), and the outer surface of the tank body (1) is respectively provided with a heating steam inlet cylinder (9) and a heating steam outlet cylinder (10). The heating steam inlet cylinder (9) and the heating steam outlet cylinder (10) are respectively communicated with the two groups of ventilation openings (20), and the middle of the inner wall of the tank body (1) is provided with a supporting ring (19), and the reaction tank (13) is abutted and supported on the top of the supporting ring (19).

5. The improved high efficiency hydrogen plant of claim 4 wherein, The hydrogen production device can be repeatedly used for two stages of hydrogen production: In the first stage, the temperature in the inner cavity of the reaction tank (13) is between 800-900℃, in this stage, two groups of the air inlet pipes (12) are respectively connected with natural gas and water vapor; In the second stage, the temperature in the inner cavity of the reaction tank (13) is between 200-300℃, in this stage, two groups of the air inlet pipes (12) are respectively connected with a mixed gas of CO and H2 and water vapor.

6. An improved high efficiency hydrogen plant as claimed in claim 5 wherein, An opening (75) is formed on the top of the inner wall of the air outlet cylinder (71), a sealing hole (76) is formed on the middle of the inner wall of the exhaust mechanism (7), and the middle of the outer surface of the piston (72) is adapted to be sleeved on the inner wall of the sealing hole (76).

7. An improved high efficiency hydrogen plant as claimed in claim 6 wherein, The mixing cylinder (8) further comprises a fan blade (82) fixedly installed at the bottom of the outer surface of the motor (11), and the fan blade (82) is at the same height as the air inlet pipe (12).

8. The improved high efficiency hydrogen plant of claim 7, wherein, The cross-sectional shape of the blocking strip (83) is umbrella-shaped, and the blocking strip (83) corresponds to the air vent groove (81) one by one.

9. The improved high efficiency hydrogen plant of claim 8, wherein, The one-way flow assembly comprises a fixed ring (16) fixedly installed at the bottom of the inner wall of the booster cylinder (6), a sealing plate (17) movably sleeved at the middle part of the inner wall of the booster cylinder (6), the bottom of the sealing plate (17) abuts against the top of the fixed ring (16), and the outer diameter value of the sealing plate (17) is smaller than the outer diameter value of the fixed ring (16).

10. The improved high efficiency hydrogen generation device of claim 9, wherein Four groups of handles (15) are fixedly connected to the top of the reaction tank (13) and are distributed at equal angles on the top of the reaction tank (13), the bottom of the gland (3) abuts against the top of the handle (15), and the axial cross-sectional shape of the handle (15) is "U".

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