A series force supercharging system applied to a hydrogen production system

Abstract

The utility model discloses a series connection force supercharging system applied to hydrogen production system relates to new energy hydrogen production technical field, including cracking reaction tank, vapour vaporization jar, normal pressure oxygen -removing water jar and booster pump, normal pressure oxygen -removing water jar and booster pump are mutually series connection arrangement between, the bottom of cracking reaction tank is provided with gas outlet, normal pressure oxygen -removing water jar is connected at the gas outlet, and the outside of vapour vaporization jar is formed with the booster hole, and normal pressure oxygen -removing water jar is linked with the booster hole through two booster pumps, the utility model discloses setting booster hole on vapour vaporization jar, and the airflow generated when vapour vaporization jar works carries out the reaction after cracking reaction tank, can return to the mode of the booster hole in the backflow of gas outlet backflow, realizes the full reaction of circulating into cracking reaction tank, opens the gas outlet again after circulating several times and recovers hydrogen, improves hydrogen production concentration greatly, can also increase airflow pressure, makes heat recycling, guarantees the efficiency of hydrogen production.

Description

Technical Field

[0001] This utility model relates to the field of new energy hydrogen production technology, and in particular to a series relay booster system applied to hydrogen production systems. Background Technology

[0002] Hydrogen is a widely available renewable energy source, derived from water, natural gas, methanol, ethanol, and biomass. Due to the depletion of energy resources and environmental pollution caused by fossil fuels, the demand for clean energy is increasingly evident. Hydrogen has a high calorific value and produces pollution-free byproducts, making it a clean and sustainable energy source. Current hydrogen production methods mainly include steam and catalyst reaction, fossil fuel reforming, water electrolysis, photocatalytic water splitting, biomass hydrogen production, and plasma hydrogen production.

[0003] Currently, methanol is widely used to produce hydrogen. Methanol-to-hydrogen production refers to the process of producing hydrogen by using methanol solution as raw material under certain temperature and pressure conditions. The methanol solution is heated to produce methanol vapor, which then undergoes a conversion reaction under the action of a hydrogen production catalyst.

[0004] The prior art (Announcement No.: CN119113541A, Announcement Date: 2024.12.13) discloses a methanol-to-hydrogen system, which utilizes a double-layer structure of a vaporizer. The heat transfer oil is in the inner tank, which is more than half full. Methanol gas is on top and liquid is on the bottom between the inner and outer tanks, and it is uniformly vaporized into methanol vapor. The gas in the upper part is superheated and enters the cracking reaction tank. The cracking reaction tank has multiple steel pipes filled with catalyst. The methanol vapor has a long gas path and is uniformly cracked into mixed hydrogen gas under the action of the catalyst.

[0005] In the above scheme, hydrogen production is achieved by passing the gas stream through the catalyst once. However, this method is prone to incomplete reaction, resulting in a low hydrogen concentration. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model provides a technical solution that can solve the above problems.

[0007] A series relay booster system for hydrogen production systems includes a cracking reactor, a steam vaporization tank, an atmospheric pressure deoxygenated water tank, and a booster pump;

[0008] The atmospheric pressure deoxygenated water tank and the booster pump are connected in series, and there are two or more booster pumps connected in series.

[0009] The bottom of the pyrolysis reactor is provided with an outlet, and the atmospheric pressure deoxygenated water tank is connected to the outlet. The outer side of the steam vaporization tank is formed with a pressure boosting hole, and the atmospheric pressure deoxygenated water tank is connected to the pressure boosting hole through two pressure boosting pumps.

[0010] Furthermore, a cooler is connected in parallel to the air outlet.

[0011] Furthermore: the cracking reactor is equipped with a hydrogen production catalyst, and an air inlet is provided at the bottom of the cracking reactor. Gas is supplied to the hydrogen production catalyst through the air inlet for reaction, and the gas after reaction is output from the air outlet.

[0012] Furthermore: the pyrolysis reactor includes a pyrolysis tank, a bottom cover, and several steel pipes. The bottom cover is fixedly installed at the bottom end of the pyrolysis tank, and a venting support plate is fixedly installed between the bottom cover and the pyrolysis tank. Several steel pipes are evenly arranged and installed in the pyrolysis tank, with the bottom ends of the steel pipes resting on the venting support plate. The hydrogen production catalyst is filled inside the steel pipes, and the venting support plate blocks the hydrogen production catalyst inside the steel pipes.

[0013] Furthermore: both the air inlet and the air outlet are located on the bottom cover, and a partition is fixedly installed inside the bottom cover, with the partition located between the air inlet and the air outlet.

[0014] Furthermore, a steam return tank is connected to the upper end of the steam vaporization tank.

[0015] Furthermore, it also includes an air compressor connected to a steam vaporization tank.

[0016] Furthermore, the upper end of the pyrolysis reactor is connected to a heat transfer oil return tank.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. A pressurization port is set on the steam vaporization tank. When the steam vaporization tank is working, the gas flow generated is reacted in the cracking reactor and can be returned to the pressurization port through the gas outlet. This allows the gas to be circulated back into the cracking reactor for full reaction. After several cycles, the gas outlet is opened to recover hydrogen, which greatly improves the hydrogen production concentration.

[0019] 2. It can increase the airflow pressure, allowing heat to be recycled and ensuring the efficiency of hydrogen production.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the left-side structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the right-side structure of this utility model;

[0025] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0026] Figure 5 This is a cross-sectional structural diagram of the present invention from another direction.

[0027] The diagram shows: 1. Steam vaporization tank; 2. Cracking reaction tank; 21. Cracking tank; 22. Bottom cover; 23. Steel pipe; 3. Cooler; 4. Pressurization system; 41. Atmospheric pressure deoxygenated water tank; 42. Booster pump; 5. Ventilation support plate; 6. Baffle plate; 7. Air inlet; 8. Air outlet; 9. Top cover; 10. Top plate; 11. Positioning hole; 12. Oil inlet; 13. Oil outlet; 14. Thermal oil reflux tank; 15. Thermal oil boiler; 16. Pressurization hole; 17. Steam reflux tank. Detailed Implementation

[0028] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0029] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0030] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.

[0033] Example 1, as Figure 1-5 As shown, a series relay booster system 4 of the present invention, applied to a hydrogen production system, includes a cracking reaction tank 2, a steam vaporization tank 1, an atmospheric pressure deoxygenated water tank 41, and a booster pump 42.

[0034] The atmospheric pressure deoxygenated water tank 41 and the booster pump 42 are connected in series. There are two or more booster pumps 42, and the two or more booster pumps 42 are connected in series.

[0035] The bottom end of the pyrolysis reaction vessel 2 is provided with an outlet 8, and the atmospheric pressure deoxygenated water tank 41 is connected to the outlet 8. The outer side of the steam vaporization tank 1 is formed with a pressure boosting hole 16, and the atmospheric pressure deoxygenated water tank 41 is connected to the pressure boosting hole 16 through two pressure boosting pumps 42.

[0036] The principle is as follows: a pressure boosting hole 16 is set on the steam vaporization tank 1. When the steam vaporization tank 1 is working, the gas flow generated is reacted in the cracking reaction tank 2 and can be returned to the pressure boosting hole 16 through the gas outlet 8. This allows the gas to circulate back into the cracking reaction tank 2 for full reaction. After several cycles, the gas outlet 8 is opened to recover hydrogen, which greatly improves the hydrogen production concentration. At the same time, it can also increase the gas flow pressure, allowing heat to be recycled and ensuring the efficiency of hydrogen production.

[0037] Furthermore, a cooler 3 is connected in parallel to the gas outlet 8; after the gas flow has circulated and reacted for a period of time, the valve connecting the gas outlet 8 to the cooler 3 can be opened to allow the fully reacted hydrogen to enter the cooler 3 for heat exchange and cooling, which can effectively ensure the hydrogen production concentration.

[0038] Furthermore: the cracking reactor 2 is equipped with a hydrogen production catalyst, and the bottom of the cracking reactor 2 is equipped with an air inlet 7. The air inlet 7 delivers gas to the hydrogen production catalyst for reaction, and the gas after reaction is output from the air outlet 8. The gas flow will enter the hydrogen production catalyst in the cracking reactor 2 for catalytic reaction. Since the gas flow after reaction can also be recycled back to the vaporization tank 1 through the relay pressurization system 4, the hydrogen production concentration can be guaranteed.

[0039] Furthermore: the pyrolysis reactor 2 includes a pyrolysis tank 21, a bottom cover 22, and several steel pipes 23. The bottom cover 22 is fixedly installed at the bottom end of the pyrolysis tank 21, and a ventilated support plate 5 is fixedly installed between the bottom cover 22 and the pyrolysis tank 21. Several steel pipes 23 are evenly arranged and installed in the pyrolysis tank 21, with the bottom end of the steel pipe 23 resting on the ventilated support plate 5. The hydrogen production catalyst is filled inside the steel pipe 23, and the ventilated support plate 5 blocks the hydrogen production catalyst inside the steel pipe 23. The hydrogen production catalyst can be filled inside the steel pipe 23 to carry out a full reaction. When the gas flow passes through the steel pipe 23, it can fully contact the hydrogen production catalyst, resulting in higher hydrogen production efficiency.

[0040] Furthermore: both the air inlet 7 and the air outlet 8 are located on the bottom cover 22, and a partition 6 is fixedly installed inside the bottom cover 22. The partition 6 is located between the air inlet 7 and the air outlet 8, which can effectively separate the air inlet 7 and the air outlet 8, ensuring that the airflow passes through the steel pipe 23 for reaction.

[0041] Furthermore, the upper end of the steam vaporization tank 1 is connected to a steam return tank 17, which can achieve the effect of steam return and reduce heat loss.

[0042] Furthermore, it also includes an air compressor 18, which is connected to the vaporization tank 1; the air compressor 18 can be used to drive the airflow into the vaporization tank 1 for vaporization, ensuring hydrogen production efficiency.

[0043] Furthermore, the upper end of the pyrolysis reaction tank 2 is connected to a heat transfer oil return tank 14, which can reduce the heat loss of the heat transfer oil in the pyrolysis reaction tank 2.

[0044] Example 2, as Figure 1-5 As shown, this utility model designs a methanol-to-hydrogen system, including a vaporization tank 1, a cracking reaction tank 2, and a cooler 3 connected in sequence.

[0045] It also includes a pressurization system 4, which is connected between the cracking reaction tank 2 and the steam vaporization tank 1. The pressurization system 4 includes an atmospheric pressure deoxygenated water tank 41 and a pressurization pump 42 arranged in series. There are two or more pressurization pumps 42, and the two or more pressurization pumps 42 are connected in series with each other.

[0046] The pyrolysis reactor 2 includes a pyrolysis tank 21, a bottom cover 22, and several steel pipes 23. The bottom cover 22 is fixedly installed at the bottom end of the pyrolysis tank 21. A ventilated support plate 5 is fixedly installed between the bottom cover 22 and the pyrolysis tank 21. Several steel pipes 23 are evenly arranged and installed in the pyrolysis tank 21. The bottom end of the steel pipe 23 rests on the ventilated support plate 5. The steel pipe 23 is filled with a hydrogen production catalyst. The ventilated support plate 5 blocks the hydrogen production catalyst inside the steel pipe 23.

[0047] A partition 6 is fixedly installed in the middle of the bottom cover 22. The air inlet 7 and the air outlet 8 are separated by the partition 6. The bottom cover 22 is formed with an air inlet 7 and an air outlet 8. The steam vaporization tank 1 is connected to the air inlet 7, and the cooler 3 is connected to the air outlet 8. The air inlet 7 passes through several steel pipes 23 on the left side of the partition 6 and then enters several steel pipes 23 on the right side of the partition 6. The gas in the several steel pipes 23 on the right side of the partition 6 is output through the air outlet 8.

[0048] The principle is as follows: the pressurization system 4 is used to increase the gas pressure in the input steam vaporization tank 1. This gas flow is output from the cracking reaction tank 2 and has a high heat value. This heat can heat the steam vaporization tank 1 and reduce energy consumption. After the gas flow passes through the steel pipe 23 of the cracking reaction tank 2, there may still be insufficient reaction. At this time, the channel from the cracking reaction tank 2 to the cooler 3 is closed, and the gas flow is returned to the steam vaporization tank 1 by the pressurization system 4 to circulate the gas flow, which plays the role of pressurizing and increasing the hydrogen concentration, allowing the gas to react fully. Finally, the cooler 3 is used to cool down the gas flow before output.

[0049] Furthermore: a top cover 9 is fixedly installed on the top of the pyrolysis tank 21, and a top plate 10 is fixedly installed on the top of several steel pipes 23. Several positioning holes 11 are formed on the top plate 10. The upper ends of the steel pipes 23 are installed in the positioning holes 11 with a clearance fit, and the top cover 9 is installed on top of the several positioning holes 11; this can ensure the stable installation of the steel pipes 23 in the pyrolysis tank 21.

[0050] Furthermore: the upper ends of several steel pipes 23 on the left side of the partition 6 are conveyed to several steel pipes 23 on the right side of the partition 6 through the top cover 9; the top cover 9 is used to realize gas flow, so that the gas can fully react with the hydrogen production catalyst in the steel pipes 23.

[0051] Furthermore: an oil inlet 12 is formed on the outer side of the bottom end of the cracking reactor 2, and an oil outlet 13 is formed on the outer side of the upper end of the cracking reactor 2. The oil inlet 12 delivers heat transfer oil into the cracking reactor 2, and the heat transfer oil heats the hydrogen production catalyst through the steel pipe 23; this can effectively heat the catalyst, thereby ensuring that the gas can fully react after passing through the steel pipe 23.

[0052] Furthermore, the upper end of the pyrolysis reaction vessel 2 is connected to a heat transfer oil return tank 14, which allows the heat transfer oil to be refluxed and heated to ensure the temperature of the heat transfer oil in the pyrolysis vessel 21.

[0053] Furthermore, a thermal oil boiler 15 is connected to the thermal oil return tank 14, which can be used to heat the thermal oil.

[0054] Furthermore: the air outlet 8 of the bottom cover 22 is connected to the atmospheric pressure deoxygenated water tank 41, and the outer side of the vaporization tank 1 is formed with a pressure boosting hole 16. The atmospheric pressure deoxygenated water tank 41 is connected to the pressure boosting hole 16 through two pressure boosting pumps 42; this can achieve an effective pressure boosting effect, ensure hydrogen production efficiency, effectively recover heat, and reduce energy consumption.

[0055] Furthermore, the upper end of the steam vaporization tank 1 is connected to a steam return tank 17; this achieves the effect of steam return and reduces heat loss.

[0056] Furthermore, it also includes an air compressor 18, which is connected to the vaporization tank 1; the air compressor 18 can be used to drive the airflow into the vaporization tank 1 for vaporization, ensuring hydrogen production efficiency.

[0057] Furthermore, the pyrolysis tank 21 and the bottom cover 22 are fixedly connected by a flange, resulting in higher installation strength.

[0058] This embodiment does not impose any limitation on the shape, material, structure, etc. of this utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A series relay booster system for use in hydrogen production systems, characterized in that: Includes a pyrolysis reactor, a steam vaporization tank, an atmospheric pressure deoxygenated water tank, and a booster pump; The atmospheric pressure deoxygenated water tank and the booster pump are connected in series. The bottom of the pyrolysis reactor is provided with an outlet, and the atmospheric pressure deoxygenated water tank is connected to the outlet. The outer side of the steam vaporization tank is formed with a pressure boosting hole, and the atmospheric pressure deoxygenated water tank is connected to the pressure boosting hole through two pressure boosting pumps.

2. The series relay booster system for hydrogen production systems according to claim 1, characterized in that: A cooler is connected in parallel to the air outlet.

3. The series relay booster system for hydrogen production systems according to claim 1, characterized in that: The cracking reactor is equipped with a hydrogen production catalyst. An inlet is provided at the bottom of the cracking reactor. Gas is supplied to the hydrogen production catalyst through the inlet for reaction. The gas produced after the reaction is output from the outlet.

4. The series relay booster system for hydrogen production systems according to claim 3, characterized in that: The pyrolysis reactor includes a pyrolysis tank, a bottom cover, and several steel pipes. The bottom cover is fixedly installed at the bottom end of the pyrolysis tank, and a venting support plate is fixedly installed between the bottom cover and the pyrolysis tank. Several steel pipes are evenly arranged and installed in the pyrolysis tank, with the bottom ends of the steel pipes resting on the venting support plate. The hydrogen production catalyst is filled inside the steel pipes, and the venting support plate blocks the hydrogen production catalyst inside the steel pipes.

5. A series relay booster system for hydrogen production systems according to claim 4, characterized in that: Both the air inlet and the air outlet are located on the bottom cover, and a partition is fixedly installed inside the bottom cover, with the partition located between the air inlet and the air outlet.

6. The series relay booster system for hydrogen production systems according to claim 1, characterized in that: The upper end of the steam vaporization tank is connected to a steam return tank.

7. A series relay booster system for hydrogen production systems according to claim 1, characterized in that: It also includes an air compressor, which is connected to a steam vaporization tank.

8. A series relay booster system for hydrogen production systems according to claim 1, characterized in that: The upper end of the pyrolysis reactor is connected to a heat transfer oil return tank.

9. A series relay booster system for hydrogen production systems according to claim 1, characterized in that: The booster pump is provided in two or more units, and the two or more booster pumps are connected in series.

Images