Solid hydrogen energy system and hydrogen-electric hybrid system power source based on thermally interpreted hydrogen

Abstract

The present invention relates to the technical field of hydrogen power systems, and specifically to a solid block hydrogen energy system based on thermal hydrogenation and a hydrogen-electric hybrid power system power supply. In the present application, based on the control principle of dynamic balance of pressure and temperature, a thermal hydrogenation device that can continuously release hydrogen and can be controlled in multiple stages can provide a fuel cell with stable hydrogen within a certain pressure range, and multiple starts and stops and continuous hydrogen supply can be achieved through a control system.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen power systems, and in particular to a solid block hydrogen energy system based on thermally resolved hydrogen and a hydrogen-electric hybrid power system power supply. Background Art

[0002] At present, the known hydrogen power system is usually hydrolysis. Since the hydrolysis material reacts violently with water, and the reaction is fast at first and then slows down, the hydrolysis reaction of the hydrolysis material is difficult to control. The existing technology mostly uses the method of controlling the water supply or the supply of the hydrolysis material to control the total amount of hydrolysis. This scheme will cause the hydrolysis device to be extremely complicated, so the hydrogen storage density of the device is greatly reduced, and it is difficult to expand the hydrogen storage scale of the hydrolysis device. At the same time, the method of controlling the water supply or the supply of the hydrolysis material is likely to cause the hydrogen release rate in the initial stage of the hydrolysis reaction to be too fast and uncontrollable, and the hydrogen release rate in the later stage of the hydrolysis reaction is too slow, and it is impossible to provide relatively stable hydrogen for the fuel cell. Summary of the invention

[0003] In view of this, the purpose of the present invention is to provide a solid hydrogen energy system and a hydrogen-electric hybrid power system power supply based on thermal hydrogenation to overcome the problems existing in the current prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solutions: On the one hand, the present application provides a solid block hydrogen energy system based on thermal hydrogen interpretation, including: a thermal hydrogen interpretation device, a cooling system, a vacuum pump, a hydrogen-to-electricity conversion system and a control system; The control system is electrically connected to the thermal hydrogen interpretation device, the cooling system, the vacuum pump and the hydrogen-to-electricity conversion system; the thermal hydrogen interpretation device is connected to the hydrogen-to-electricity conversion system through a pipeline, the cooling system 3 is arranged between the thermal hydrogen interpretation device and the hydrogen-to-electricity conversion system, and the vacuum pump is connected between the thermal hydrogen interpretation device and the hydrogen-to-electricity conversion system; The control system is used to control the vacuum pump to evacuate the air in the system before the thermal hydrogen interpretation device is operated, and to control the thermal hydrogen interpretation device to release hydrogen after the system is evacuated, and to control the cooling system to cool the hydrogen released by the thermal hydrogen interpretation device, and then transport it to the hydrogen-to-electricity conversion system through a pipeline, and control the hydrogen-to-electricity conversion system to perform hydrogen-to-electricity conversion.

[0005] Furthermore, in the above-mentioned system, the thermal hydrogen release device is a solid hydrogen heating control system which includes at least one group of heating coils, and the solid hydrogen bottle contains at least one group of solid hydrogen release units.

[0006] Furthermore, the above system further comprises: an oxygen concentration sensor; The oxygen concentration sensor is arranged on the pipeline between the thermal hydrogen interpretation device and the hydrogen-to-electricity conversion system, and between the cooling system and the hydrogen-to-electricity conversion system, and the oxygen concentration sensor is electrically connected to the control system; The oxygen concentration sensor is used to detect oxygen concentration data in the system and send the oxygen concentration data to the control system; The control system is used to determine whether to issue an alarm based on the oxygen concentration data, stop the operation of the thermal hydrogen interpretation device, and start the vacuum pump to exhaust the gas in the system.

[0007] Furthermore, the above system further includes: a pressure sensor; The pressure sensor is arranged on the pipeline between the thermal hydrogen interpretation device and the hydrogen-to-electricity conversion system, and between the cooling system and the oxygen concentration sensor, and the pressure sensor is electrically connected to the control system; The pressure sensor is used to detect the hydrogen pressure; The control system is used to adjust the heating threshold of the heating coil of the thermal hydrogenation device, reduce the heating power, and reduce the hydrogen production rate of the thermal hydrogenation device when the hydrogen pressure is greater than a preset safety control pressure; The control system is also used to adjust the heating threshold of the heating coil of the thermal hydrogenation device when the hydrogen pressure is less than the preset hydrogen release equilibrium pressure, thereby increasing the heating power and the hydrogen production rate of the thermal hydrogenation device.

[0008] Furthermore, the above-mentioned system further comprises: a mass control flow meter; The mass control flowmeter is arranged on the pipeline between the thermal hydrogen interpretation device and the hydrogen-to-electricity conversion system, and between the pressure sensor and the oxygen concentration sensor, and the mass control flowmeter is electrically connected to the control system; The mass control flow meter is used to detect the amount of hydrogen released by the thermal hydrogenation device; The control system is used to compare the hydrogen release amount detected by the mass control flowmeter with the preset hydrogen release amount, and adjust the heating threshold of the heating coil of the thermal hydrogenation device according to the comparison result to control the hydrogen production rate of the thermal hydrogenation device.

[0009] Furthermore, the above-mentioned system further includes: a filter; The filter is arranged on a pipeline between the thermal hydrogen interpretation device and the hydrogen-to-electricity conversion system, and between the mass control flowmeter and the pressure sensor.

[0010] Further, in the above-mentioned system, a needle valve is provided on the pipeline between the thermal hydrogen interpretation device and the cooling system, a temperature sensor is also provided between the filter and the pressure sensor, and the temperature sensor is electrically connected to the control system. A first solenoid valve is provided between the filter and the mass control flowmeter, and the control end of the first solenoid valve is electrically connected to the control system. A first check valve is provided between the mass control flowmeter and the oxygen concentration sensor. The filter is also directly connected to the inlet of the first check valve through a second solenoid valve, and the control end of the second solenoid valve is electrically connected to the control system. A third solenoid valve is provided between the outlet of the first check valve and the oxygen concentration sensor, and the control end of the third solenoid valve is electrically connected to the control system. A second check valve is provided between the oxygen concentration sensor and the hydrogen-to-electricity conversion system, and the outlet of the first check valve is also connected to the inlet of the second check valve through a mechanical valve, and the outlet of the first check valve is also connected to the inlet of the second check valve through a fourth solenoid valve, and the control end of the fourth solenoid valve is electrically connected to the control system.

[0011] Furthermore, in the system described above, the thermal hydrogenation device is internally equipped with a heating structure, aerogel insulation material, insulation cotton and fire-proof woven material, and is externally provided with a high-temperature resistant protective shell, and the high-temperature resistant protective shell is provided with a plurality of temperature sensors, and the temperature sensors are electrically connected to the control system.

[0012] Further, in the above-mentioned system, the control system is provided with a display, a temperature regulator, a timer, a start / stop switch and an alarm button; The solid block hydrogen storage bottle of the thermal hydrogen release device is cylindrical or rectangular in shape, and is equipped with porous hydrogen storage cells inside, which are used to separate the solid block hydrogen storage materials, and the solid block hydrogen storage materials are evenly distributed in each of the porous hydrogen release cells; The porous mesh of the porous hydrogen-releasing unit cell has a thickness of 2-5 mm, a pore size of 1-12 mm, and a height of 50-500 mm of the space separated by the hydrogen-releasing unit cell; The solid block hydrogen storage material is solid block magnesium hydride or aluminum hydride, and products thereof or mixtures thereof.

[0013] On the other hand, the present application provides a hydrogen-electric hybrid power system power supply, including: a solid block hydrogen energy system based on thermal hydrogenation as described in any of the above items and a power battery: The hydrogen-to-electricity conversion system of the solid block hydrogen energy system based on thermal hydrogen interpretation is electrically connected to the power battery, and the power battery is also electrically connected to the control system of the solid block hydrogen energy system based on thermal hydrogen interpretation; The control system is used to start the solid block hydrogen energy system based on thermal hydrogenation to provide electricity to the power battery when it is detected that the remaining power of the power battery reaches a preset threshold.

[0014] The beneficial effects of the present invention are: The present application has a thermal hydrogen interpretation device, a cooling system, a vacuum pump, a hydrogen-to-electric conversion system and a control system, and the control system is electrically connected to the thermal hydrogen interpretation device, the cooling system, the vacuum pump and the hydrogen-to-electric conversion system; the thermal hydrogen interpretation device is connected to the hydrogen-to-electric conversion system through a pipeline, the cooling system is arranged between the thermal hydrogen interpretation device and the hydrogen-to-electric conversion system, the vacuum pump is connected between the thermal hydrogen interpretation device and the hydrogen-to-electric conversion system, and the control system is used to control the vacuum pump to evacuate the air in the system before the thermal hydrogen interpretation device is operated, and after the air is evacuated in the system, control the thermal hydrogen interpretation device to release hydrogen, and control the cooling system to cool the hydrogen released by the thermal hydrogen interpretation device, and then transport it to the hydrogen-to-electric conversion system through a pipeline, and control the hydrogen-to-electric conversion system to perform hydrogen-to-electric conversion. In the present application, based on the control principle of dynamic balance of pressure and temperature, a thermal hydrogen interpretation device that can continuously release hydrogen and can be controlled in multiple stages can provide a stable hydrogen within a certain pressure range to the fuel cell, and multiple starts and stops and continuous hydrogen supply can be achieved through the control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram provided by an embodiment of a solid block hydrogen energy system based on thermal hydrogen interpretation of the present invention; Figure 2 It is a structural schematic diagram provided by another embodiment of a solid block hydrogen energy system based on thermally interpreted hydrogen of the present invention; Figure 3 It is a schematic diagram of the structure of a thermal hydrogenation device provided by an embodiment of a solid hydrogen energy system based on thermal hydrogenation of the present invention; Figure 4 It is a structural schematic diagram provided by an embodiment of a hydrogen-electric hybrid power system power supply of the present invention. DETAILED DESCRIPTION

[0017] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0018] Figure 1 This is a structural schematic diagram of an embodiment of a solid hydrogen energy system based on thermal hydrogen interpretation of the present invention. Figure 1 , this embodiment may include: a thermal hydrogen interpretation device 1, a cooling system 3, a vacuum pump 10, a hydrogen-to-electricity conversion system 13 and a control system 14; The control system 14 is electrically connected to the thermal hydrogen interpretation device 1, the cooling system 3, the vacuum pump 10 and the hydrogen-to-electricity conversion system 13 respectively; the thermal hydrogen interpretation device 1 is connected to the hydrogen-to-electricity conversion system 13 through a pipeline, the cooling system 3 is arranged between the thermal hydrogen interpretation device 1 and the hydrogen-to-electricity conversion system 13, and the vacuum pump 10 is connected between the thermal hydrogen interpretation device 1 and the hydrogen-to-electricity conversion system 13; The control system 14 is used to control the vacuum pump 10 to evacuate the air in the system before the thermal hydrogen interpretation device 1 is operated, and to control the thermal hydrogen interpretation device 1 to release hydrogen after the system is evacuated, and to control the cooling system 3 to cool the hydrogen released by the thermal hydrogen interpretation device 1, and then transport it to the hydrogen-to-electricity conversion system 13 through a pipeline, and control the hydrogen-to-electricity conversion system 13 to perform hydrogen-to-electricity conversion.

[0019] It can be understood that in this embodiment, based on the control principle of dynamic balance of pressure and temperature, a thermal hydrogenation device 1 that can continuously release hydrogen and can be controlled in multiple stages can provide a stable hydrogen gas within a certain pressure range to the fuel cell, and multiple starts and stops and continuous hydrogen supply can be achieved through the control system 14.

[0020] Preferably, the thermal hydrogen release device 1 is a solid hydrogen heating control system 14 which includes at least one set of heating coils, and a solid hydrogen bottle is provided with at least one set of solid hydrogen release units.

[0021] It is understandable that if Figure 3 As shown, Figure 3 It is a schematic diagram of the structure of a pyrolysis hydrogenation device 1 provided by an embodiment of a solid hydrogen energy system based on pyrolysis hydrogenation of the present invention. The pyrolysis hydrogenation device 1 is equipped with a solid hydrogen bottle 1-2, which is equipped with a hydrogen release unit 1-1. The hydrogen release device is provided with an inner protective layer 1-5, a heat preservation layer 1-3, N groups of heating control harnesses 1-4, and an outer protective layer 1-6. The solid hydrogen bottle is a cylindrical metal closed structure with a temperature and safety pressure relief device installed on the top. It is equipped with N hydrogen release units 1-1, and the quality of solid hydrogen in each unit is the same.

[0022] like Figure 2 As shown, Figure 2 It is a structural schematic diagram provided by another embodiment of the solid block hydrogen energy system based on thermal hydrogen interpretation of the present invention.

[0023] Preferably, it also includes: an oxygen concentration sensor 11; The oxygen concentration sensor 11 is arranged on the pipeline between the thermal hydrogen interpretation device 1 and the hydrogen-to-electricity conversion system 13, and is arranged between the cooling system 3 and the hydrogen-to-electricity conversion system 13. The oxygen concentration sensor 11 is electrically connected to the control system 14; An oxygen concentration sensor 11 is used to detect oxygen concentration data in the system and send the oxygen concentration data to a control system 14; The control system 14 is used to determine whether to issue an alarm based on the oxygen concentration data, stop the operation of the thermal hydrogen interpretation device 1, and start the vacuum pump 10 to discharge the gas in the system.

[0024] Preferably, it also includes: a pressure sensor 4; The pressure sensor 4 is arranged on the pipeline between the thermal hydrogen interpretation device 1 and the hydrogen-to-electricity conversion system 13, and between the cooling system 3 and the oxygen concentration sensor 11. The pressure sensor 4 is electrically connected to the control system 14; A pressure sensor 4, used to detect the hydrogen pressure; The control system 14 is used to adjust the heating threshold of the heating coil of the pyrohydrogenation device 1 to reduce the heating power and the hydrogen production rate of the pyrohydrogenation device 1 when the hydrogen pressure is greater than the preset safety control pressure; The control system 14 is also used to adjust the heating threshold of the heating coil of the pyrolysis hydrogenation device 1 when the hydrogen pressure is lower than the preset hydrogen release equilibrium pressure, thereby increasing the heating power and the hydrogen production rate of the pyrolysis hydrogenation device 1.

[0025] Preferably, it also includes: a quality control flow meter 8; The mass control flowmeter 8 is arranged on the pipeline between the thermal hydrogen interpretation device 1 and the hydrogen-to-electricity conversion system 13, and between the pressure sensor 4 and the oxygen concentration sensor 11. The mass control flowmeter 8 is electrically connected to the control system 14; A mass control flow meter 8, used to detect the amount of hydrogen released by the thermal hydrogenation device 1; The control system 14 is used to compare the hydrogen release amount detected by the mass control flowmeter 8 with the preset hydrogen release amount, and adjust the heating threshold of the heating coil of the thermal hydrogenation device 1 according to the comparison result to control the hydrogen production rate of the thermal hydrogenation device 1.

[0026] Preferably, it also includes: a filter 6; The filter 6 is arranged on the pipeline between the thermal hydrogen interpretation device 1 and the hydrogen-to-electricity conversion system 13 , and between the mass control flowmeter 8 and the pressure sensor 4 .

[0027] Preferably, a needle valve 2 is provided on the pipeline between the thermal hydrogen interpretation device 1 and the cooling system 3, a temperature sensor is also provided between the filter 6 and the pressure sensor 4, the temperature sensor is electrically connected to the control system 14, a first solenoid valve 7 is provided between the filter 6 and the mass control flowmeter 8, the control end of the first solenoid valve 7 is electrically connected to the control system 14, a first check valve 9 is provided between the mass control flowmeter 8 and the oxygen concentration sensor 11, the filter 6 is also directly connected to the inlet of the first check valve 9 through the second solenoid valve 7, the control end of the second solenoid valve 7 is electrically connected to the control system 14, a third solenoid valve 7 is provided between the outlet of the first check valve 9 and the oxygen concentration sensor 11, the control end of the third solenoid valve 7 is electrically connected to the control system 14, a second check valve 9 is provided between the oxygen concentration sensor 11 and the hydrogen-to-electricity conversion system 13, the outlet of the first check valve 9 is also connected to the inlet of the second check valve 9 through the mechanical valve 12, the outlet of the first check valve 9 is also connected to the inlet of the second check valve 9 through the fourth solenoid valve 7, and the control end of the fourth solenoid valve 7 is electrically connected to the control system 14.

[0028] Preferably, the thermal hydrogenation device 1 is internally provided with a heating structure, aerogel insulation material, insulation cotton and fireproof woven material, and externally provided with a high temperature resistant protective shell, on which a plurality of temperature sensors are provided, and the temperature sensors are electrically connected to the control system 14 .

[0029] Preferably, the control system 14 is provided with a display, a temperature regulator, a timer, a start / stop switch and an alarm button; The solid block hydrogen storage bottle of the thermal hydrogen release device 1 is cylindrical or rectangular in shape, and is equipped with porous hydrogen storage cells inside, which are used to separate the solid block hydrogen storage materials. The solid block hydrogen storage materials are evenly distributed in each porous hydrogen release cell; The porous mesh of the porous hydrogen-releasing unit cell has a thickness of 2-5 mm, a mesh aperture of 1-12 mm, and a space height of 50-500 mm separated by the hydrogen-releasing unit cell; The solid block hydrogen storage material is solid block magnesium hydride or aluminum hydride, and products thereof or mixtures thereof.

[0030] like Figure 4 As shown, Figure 4 1 is a schematic diagram of a structure of a hydrogen-electric hybrid power system power supply according to an embodiment of the present invention. The present invention also provides a hydrogen-electric hybrid power system power supply, including: a solid block hydrogen energy system based on thermal hydrogenation according to any one of the above items and a power battery 200: The hydrogen-to-electricity conversion system 13 of the solid block hydrogen energy system based on thermal hydrogen interpretation is electrically connected to the power battery 200, and the power battery 200 is also electrically connected to the control system 14 of the solid block hydrogen energy system based on thermal hydrogen interpretation; The control system 14 is used to start the solid hydrogen energy system based on thermal hydrogenation to provide electricity to the power battery 200 when it is detected that the remaining power of the power battery 200 reaches a preset threshold.

[0031] In some optional embodiments, the starting power of the pyrolysis hydrogenation device 1 is 40%-90%, the target charging amount of the power battery 200 is the amount of power that can be generated by the hydrogen released by N hydrogen-releasing cells through the hydrogen-to-electricity conversion system 13, the hydrogen release equilibrium pressure should be determined according to the hydrogen pressure demand of the hydrogen-to-electricity conversion system 13, the safety control pressure should be 0.3-0.5 bar higher than the hydrogen release equilibrium pressure, the pressure relief pressure of the pressure relief valve is 1.3-1.5 times the safety control pressure, and is less than the maximum working pressure of each hydrogen storage component of the system, and the segmented controlled pyrolysis form of the solid block magnesium hydride includes but is not limited to induction heating, electromagnetic heating, coil heating, ceramic heating, thermal oil heating and other heating forms.

[0032] In specific practice: Embodiment 1 The solid block hydrogen storage bottle is a cylindrical structure, with 6 hydrogen storage cells with a thickness of 2mm and a pore size of 9mm inside, which are used to separate the pyrolysis hydrogen material to prevent the accumulation of pyrolysis materials and cause the reaction to run away. The pyrolysis material is solid block magnesium hydride, which is evenly filled in a space with a height of 160mm made of mesh plates. The amount of pyrolysis hydrogen in each hydrogen storage cell is 500g, which can provide 10kWh of power generation for the fuel cell, while the maximum energy storage capacity of the power battery 200 is 40kWh.

[0033] Under the control of the system, the power supply of the hydrogen-electric hybrid system supplies power to the motor and generates power. When the remaining power of the power battery 200 is greater than 70% of its maximum capacity, the start threshold of thermal hydrogenation is triggered. The control system 14 calculates the target charging amount as 8kWh (the mass control flowmeter 8 controls the flow and is responsible for calculating the total hydrogen release flow) and controls the thermal hydrogenation device 1 to release hydrogen from a hydrogen release unit for use in hydrogen fuel cells to generate electricity and charge the power battery 200 until the charging power reaches the target value, charging is completed, and thermal hydrogenation is stopped.

[0034] The control system 14 controls a hydrogen release unit in the thermal hydrogenation device 1 to release hydrogen. First, the system opens the second solenoid valve 7-2 and the third solenoid valve 7-3, and closes the first solenoid valve 7-1, the mass control flowmeter 8, and the mechanical valve 12. The vacuum pump 10 starts to work and discharges the excess gas inside the system to the outside of the system until the oxygen concentration sensor 11 detects that the measured value of the oxygen concentration alarm is lower than the system setting and the pressure is not greater than negative 0.9 bar. The second solenoid valve 7-2 and the fourth solenoid valve 7-4 are closed, the first solenoid valve 7-1 and the third solenoid valve 7-3 are opened, and the heating control harness 1-4 is powered on to start, and the thermal hydrogenation device 1 starts to heat and release hydrogen from the bottom in the order of 1-4-1 to 1-4-n from bottom to top. When the pressure sensor 4 detects that the pressure is greater than 0.5 bar, the hydrogen is supplied to the hydrogen fuel cell 13 through the needle valve 2, the cooling system 3, the filter 4, the first solenoid valve 7-1, the mass control flowmeter 8, the first one-way valve 9-1, the fourth solenoid valve 7-4, and the second one-way valve 9-2. If the pressure sensor detects that the hydrogen pressure is greater than the safety control pressure of 1 bar during the hydrogen supply process, the temperature heating threshold is adjusted to reduce the heating power, and the pressure and temperature are used to achieve a dynamic balance to control the thermal hydrogen release rate; if the pressure sensor detects that the hydrogen pressure is less than the hydrogen release equilibrium pressure of 0.5 bar during the hydrogen supply process, the temperature heating threshold is adjusted to increase the heating power; when the hydrogen pressure sensor 4 detects that the hydrogen pressure is less than the hydrogen release equilibrium pressure, and the mass control flowmeter 8 detects that the total hydrogen release flow of the system is greater than the set value of a single hydrogen release unit, the hydrogen release heating of this unit is turned off; until the hydrogen release pressure is less than the valve closing set pressure of 0.2 bar, the control system 14 stops hydrogen release and closes all valves.

[0035] In this embodiment, the hydrogen discharge pressure of the pressure relief safety valve is 1.3 times the safety control pressure and is 10 Bar less than the design safety pressure of each part of the system. When the pressure in the system is greater than the hydrogen discharge safety pressure, the pressure relief valve automatically opens to discharge hydrogen.

[0036] When the remaining power of the power battery 200 is again lower than 60% of its energy storage capacity, the remaining thermal dehydrogenation units are started in sequence to release hydrogen for use in hydrogen fuel cell power generation and charging of the power battery 200.

[0037] Embodiment 2 The solid block hydrogen storage bottle is a cylindrical structure, with 10 hydrogen storage cells with a thickness of 2.5mm and a pore size of 8mm inside, which are used to separate the pyrolysis hydrogen material to prevent the accumulation of pyrolysis materials and cause the reaction to run away. The pyrolysis material is solid block magnesium hydride, which is evenly filled in a space with a height of 100mm made of mesh plates. The amount of pyrolysis hydrogen in each hydrogen storage cell is 300g, which can provide 4.5kWh of power generation for the fuel cell, while the maximum energy storage capacity of the power battery 200 is 50kWh.

[0038] Under the control of the system, the power supply of the hydrogen-electric hybrid system supplies power to the motor and generates power. When the remaining power of the power battery 200 is greater than 50% of its maximum capacity, the start threshold of thermal hydrogenation is triggered. The control system 14 calculates the target charging amount as 9kWh (the mass control flowmeter 8 controls the flow and is responsible for calculating the total hydrogen release flow) and simultaneously controls the thermal hydrogenation device 1 to release hydrogen from two hydrogen release units for use in hydrogen fuel cells to generate electricity and charge the power battery 200 until the charging power reaches the target value, charging is completed, and thermal hydrogenation is stopped.

[0039] The control system 14 controls the two hydrogen release units in the thermal hydrogenation device 1 to release hydrogen. First, the system opens the second solenoid valve 7-2 and the third solenoid valve 7-3, and closes the first solenoid valve 7-1, the mass control flowmeter 8, and the mechanical valve 12. The vacuum pump 10 starts to work and discharges the excess gas inside the system to the outside of the system until the oxygen concentration sensor 11 detects that the measured value of the oxygen concentration alarm is lower than the system setting and the pressure is not greater than negative 0.9 bar. The second solenoid valve 7-2 and the fourth solenoid valve 7-4 are closed, the first solenoid valve 7-1 and the third solenoid valve 7-3 are opened, and the heating control harness 1-4 is powered on to start. The thermal hydrogenation device 1 starts to heat and release hydrogen from the bottom in the order of 1-4-1 to 1-4-n from bottom to top. When the pressure sensor 4 detects that the pressure is greater than 0.6 bar, the hydrogen is supplied to the hydrogen fuel cell 13 through the needle valve 2, the cooling system 3, the filter 4, the first solenoid valve 7-1, the mass control flowmeter 8, the first one-way valve 9-1, the fourth solenoid valve 7-4, and the second one-way valve 9-2. If during the hydrogen supply process the pressure sensor detects that the hydrogen pressure is greater than the safety control pressure of 1 bar, the temperature heating threshold is adjusted to reduce the heating power, and the pressure and temperature are used to achieve a dynamic balance to control the thermal hydrogen release rate; if during the hydrogen supply process the pressure sensor detects that the hydrogen pressure is less than the hydrogen release equilibrium pressure of 0.6 bar, the temperature heating threshold is adjusted to increase the heating power; when the hydrogen pressure sensor 4 detects that the hydrogen pressure is less than the hydrogen release equilibrium pressure, and the mass control flowmeter 8 detects that the total hydrogen release flow of the system is greater than the set value of a single hydrogen release unit, the hydrogen release heating of this unit is turned off; until the hydrogen release pressure is less than the valve closing set pressure of 0.25 bar, the control system 14 stops hydrogen release and closes all valves.

[0040] In this embodiment, the hydrogen discharge pressure of the pressure relief safety valve is 1.5 times the safety control pressure and is less than the designed safety pressure of each part of the system by 5 Bar. When the pressure in the system is greater than the hydrogen discharge safety pressure, the pressure relief valve automatically opens to discharge hydrogen.

[0041] When the remaining power of the power battery 200 is again lower than 50% of its energy storage capacity, the remaining thermal dehydrogenation units are started in sequence to release hydrogen for use in hydrogen fuel cell power generation and charging of the power battery 200.

[0042] Embodiment 3 The solid block hydrogen storage bottle is a cylindrical structure, with 15 hydrogen storage cells with a thickness of 3mm and a pore size of 8.5mm inside, which are used to separate the pyrolysis hydrogen material to prevent the accumulation of pyrolysis materials and cause the reaction to run away. The pyrolysis material is solid block magnesium hydride, which is evenly filled in a space with a height of 70mm made of mesh plates. The amount of pyrolysis hydrogen in each hydrogen storage cell is 200g, which can provide 3kWh of power generation for the fuel cell, while the maximum energy storage capacity of the power battery 200 is 20kWh.

[0043] Under the control of the system, the power supply of the hydrogen-electric hybrid system supplies power to the motor and generates power. When the remaining power of the power battery 200 is greater than 50% of its maximum capacity, the start threshold of thermal hydrogenation is triggered. The control system 14 calculates the target charging amount as 6kWh (the mass control flowmeter 8 controls the flow and is responsible for calculating the total hydrogen release flow) and simultaneously controls the thermal hydrogenation device 1 to release hydrogen from two hydrogen release units for use in hydrogen fuel cells to generate electricity and charge the power battery 200 until the charging power reaches the target value, charging is completed, and thermal hydrogenation is stopped.

[0044] The control system 14 controls the two hydrogen release units in the thermal hydrogenation device 1 to release hydrogen. First, the system opens the second solenoid valve 7-2 and the third solenoid valve 7-3, and closes the first solenoid valve 7-1, the mass control flowmeter 8, and the mechanical valve 12. The vacuum pump 10 starts to work to discharge the excess gas inside the system to the outside of the system until the oxygen concentration sensor 11 detects that the oxygen concentration alarm measurement value is lower than the system setting and the pressure is not greater than negative 0.95 bar. The second solenoid valve 7-2 and the fourth solenoid valve 7-4 are closed, the first solenoid valve 7-1 and the third solenoid valve 7-3 are opened, the heating control harness 1-4 is powered on and started, and the thermal hydrogenation device 1 starts to heat and release hydrogen from the bottom in the order of 1-4-1 to 1-4-n from bottom to top. When the pressure sensor 4 detects that the pressure is greater than 0.7 bar, the hydrogen is supplied to the hydrogen fuel cell 13 through the needle valve 2, the cooling system 3, the filter 4, the first solenoid valve 7-1, the quality control flowmeter 8, the first one-way valve 9-1, the fourth solenoid valve 7-4, and the second one-way valve 9-2. If the pressure sensor detects that the pressure of the hydrogen is greater than the safety control pressure of 1.5 bar during the hydrogen supply process, the temperature heating threshold is adjusted to reduce the heating power, and the pressure and temperature are used to achieve a dynamic balance to control the thermal hydrogenation rate; if the pressure sensor detects that the pressure of the hydrogen is less than the hydrogen release equilibrium pressure of 0.7 bar during the hydrogen supply process, the temperature heating threshold is adjusted to increase the heating power; when the hydrogen pressure sensor 4 detects that the hydrogen pressure is less than the hydrogen release equilibrium pressure, and the quality control flowmeter 8 detects that the total hydrogen release flow of the system is greater than the set value of a single hydrogen release unit, the heating of the hydrogen release of this unit is turned off; until the hydrogen release pressure is less than the valve closing set pressure of 0.3 bar, the control system 14 stops hydrogen release and closes all valves.

[0045] In this embodiment, the hydrogen discharge pressure of the pressure relief safety valve is 1.3 times the safety control pressure and is less than the designed safety pressure of each part of the system by 6 Bar. When the pressure in the system is greater than the hydrogen discharge safety pressure, the pressure relief valve automatically opens to discharge hydrogen.

[0046] In this example, after the thermal hydrogenation device 1 has released all the hydrogen in the hydrogen release units, the solid block hydrogen bottle needs to be replaced.

[0047] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0048] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" refers to at least two.

[0049] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present invention belong.

[0050] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0051] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0052] In addition, each functional unit in each embodiment of the present invention may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0053] The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0055] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A solid hydrogen energy system based on thermal hydrogenation, characterized in that: include: Thermal hydrogen interpretation device, cooling system, vacuum pump, hydrogen-to-electricity conversion system and control system; The control system is electrically connected to the thermal hydrogen interpretation device, the cooling system, the vacuum pump and the hydrogen-to-electricity conversion system; the thermal hydrogen interpretation device is connected to the hydrogen-to-electricity conversion system through a pipeline, the cooling system is arranged between the thermal hydrogen interpretation device and the hydrogen-to-electricity conversion system, and the vacuum pump is connected between the thermal hydrogen interpretation device and the hydrogen-to-electricity conversion system; The control system is used to control the vacuum pump to evacuate the air in the system before the thermal hydrogen interpretation device is operated, and to control the thermal hydrogen interpretation device to release hydrogen after the system is evacuated, and to control the cooling system 3 to cool the hydrogen released by the thermal hydrogen interpretation device, and then transport it to the hydrogen-to-electricity conversion system through a pipeline, and control the hydrogen-to-electricity conversion system to perform hydrogen-to-electricity conversion.

2. The system according to claim 1, characterized in that The thermal hydrogen release device is a solid block hydrogen heating control system which includes at least one set of heating coils, and a solid block hydrogen bottle which contains at least one set of solid block hydrogen release units.

3. The system according to claim 2, characterized in that Also includes: Oxygen concentration sensor; The oxygen concentration sensor is arranged on the pipeline between the thermal hydrogen interpretation device and the hydrogen-to-electricity conversion system, and between the cooling system and the hydrogen-to-electricity conversion system, and the oxygen concentration sensor is electrically connected to the control system; The oxygen concentration sensor is used to detect oxygen concentration data in the system and send the oxygen concentration data to the control system; The control system is used to determine whether to issue an alarm based on the oxygen concentration data, stop the operation of the thermal hydrogen interpretation device, and start the vacuum pump to exhaust the gas in the system.

4. The system according to claim 3, characterized in that Also includes: Pressure sensor; The pressure sensor is arranged on the pipeline between the thermal hydrogen interpretation device and the hydrogen-to-electricity conversion system, and between the cooling system and the oxygen concentration sensor, and the pressure sensor is electrically connected to the control system; The pressure sensor is used to detect the hydrogen pressure; The control system is used to adjust the heating threshold of the heating coil of the thermal hydrogenation device, reduce the heating power, and reduce the hydrogen production rate of the thermal hydrogenation device when the hydrogen pressure is greater than a preset safety control pressure; The control system is also used to adjust the heating threshold of the heating coil of the thermal hydrogenation device when the hydrogen pressure is less than the preset hydrogen release equilibrium pressure, thereby increasing the heating power and the hydrogen production rate of the thermal hydrogenation device.

5. The system according to claim 4, characterized in that Also includes: Quality control flow meters; The mass control flowmeter is arranged on the pipeline between the thermal hydrogen interpretation device and the hydrogen-to-electricity conversion system, and between the pressure sensor and the oxygen concentration sensor, and the mass control flowmeter is electrically connected to the control system; The mass control flow meter is used to detect the amount of hydrogen released by the thermal hydrogenation device; The control system is used to compare the hydrogen release amount detected by the mass control flowmeter with the preset hydrogen release amount, and adjust the heating threshold of the heating coil of the thermal hydrogenation device according to the comparison result to control the hydrogen production rate of the thermal hydrogenation device.

6. The system according to claim 5, characterized in that Also includes: Filters; The filter is arranged on a pipeline between the thermal hydrogen interpretation device and the hydrogen-to-electricity conversion system, and between the mass control flowmeter and the pressure sensor.

7. The system according to claim 6, characterized in that A needle valve is arranged on the pipeline between the thermal hydrogen interpretation device and the cooling system, a temperature sensor is also arranged between the filter and the pressure sensor, and the temperature sensor is electrically connected to the control system, a first solenoid valve is arranged between the filter and the mass control flowmeter, and the control end of the first solenoid valve is electrically connected to the control system, a first check valve is arranged between the mass control flowmeter and the oxygen concentration sensor, the filter is also directly connected to the inlet of the first check valve through a second solenoid valve, and the control end of the second solenoid valve is electrically connected to the control system, a third solenoid valve is arranged between the outlet of the first check valve and the oxygen concentration sensor, and the control end of the third solenoid valve is electrically connected to the control system, a second check valve is arranged between the oxygen concentration sensor and the hydrogen-to-electricity conversion system, the outlet of the first check valve is also connected to the inlet of the second check valve through a mechanical valve, the outlet of the first check valve is also connected to the inlet of the second check valve through a fourth solenoid valve, and the control end of the fourth solenoid valve is electrically connected to the control system.

8. The system according to claim 7, characterized in that The thermal hydrogenation device is equipped with a heating structure, aerogel insulation material, insulation cotton and fireproof woven material inside, and is provided with a high-temperature resistant protective shell outside. The high-temperature resistant protective shell is provided with multiple temperature sensors, and the temperature sensors are electrically connected to the control system.

9. The system according to claim 8, characterized in that The control system is equipped with a display, a temperature regulator, a timer, a start / stop switch and an alarm button; The solid block hydrogen storage bottle of the thermal hydrogen release device is cylindrical or rectangular in shape, and is equipped with porous hydrogen storage cells inside, which are used to separate the solid block hydrogen storage materials, and the solid block hydrogen storage materials are evenly distributed in each of the porous hydrogen release cells; The porous mesh of the porous hydrogen-releasing unit cell has a thickness of 2-5 mm, a pore size of 1-12 mm, and a height of 50-500 mm of the space separated by the hydrogen-releasing unit cell; The solid block hydrogen storage material is solid block magnesium hydride or aluminum hydride, and products thereof or mixtures thereof.

10. A hydrogen-electric hybrid power system power supply, characterized in that: include: The solid block hydrogen energy system and power battery based on thermal hydrogenation according to any one of claims 1 to 9: The hydrogen-to-electricity conversion system of the solid block hydrogen energy system based on thermal hydrogen interpretation is electrically connected to the power battery, and the power battery is also electrically connected to the control system of the solid block hydrogen energy system based on thermal hydrogen interpretation; The control system is used to start the solid block hydrogen energy system based on thermal hydrogenation to provide electricity to the power battery when it is detected that the remaining power of the power battery reaches a preset threshold.

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