Hydrogen production-fuel cell integrated energy supply system and mobile electric equipment

Abstract

The invention provides a hydrogen production-fuel cell integrated energy supply system and mobile electric equipment.The integrated energy supply system comprises a fuel cell, a hydrogen production unit and a controller, the hydrogen production unit is used for providing hydrogen for the fuel cell, and the hydrogen production unit at least comprises a hydrogen production bin, a hydrogen production fuel rod, a water conveying pipeline and a gas conveying pipeline; the output end of the water conveying pipeline and the input end of the gas conveying pipeline are respectively connected with the hydrogen production bin; the hydrogen production fuel rod sliding mechanism is arranged in the hydrogen production bin, and the immersion depth of the hydrogen production fuel rod sliding mechanism is adjustable; the controller is used for regulating and controlling the running state of the fuel cell and / or the hydrogen production unit, and the running state at least comprises the immersion depth of the hydrogen production fuel rod. The integrated energy supply system provided by the invention is low in raw material cost, quick in response, stable in starting or running in a low-temperature environment, high in integration level, complete in function and convenient to carry, and can be carried by mobile electric equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen production and fuel cell technology, and in particular to a hydrogen production-fuel cell integrated energy supply system and a mobile power-consuming device. Background Art

[0002] As a zero-carbon green new energy, hydrogen energy has the characteristics of high energy density, high conversion efficiency, abundant reserves and clean and pollution-free. It is one of the new energy sources with the greatest development potential. At present, the more mature hydrogen production technology mainly uses fossil fuels such as coal or natural gas to produce hydrogen, but it faces disadvantages such as many gas impurities, complex purification process and emission of CO2 gas. Water electrolysis hydrogen production technology has become a research hotspot in the field of hydrogen production technology due to its advantages such as simple equipment structure, no hydrogen separation operation and no CO2 emission.

[0003] Globally, in the face of the increasing number of traditional internal combustion engines powered by primary energy in mobile sources, the proportion of fuel consumption in the transportation industry has increased year by year, and the energy crisis and environmental threats have become increasingly serious. Faced with the severe situation of energy and environment, the governments of developed countries attach great importance to the issue of transportation energy transformation. Fuel cells are a highly efficient and environmentally friendly new energy power generation device with higher energy density than traditional chemical energy. Among them, proton exchange membrane fuel cells (PEMFC) have the advantages of high specific power, fast start-up, low reaction temperature, and zero pollution, and solid oxide fuel cells (SOFC) have higher performance and efficiency, better fuel flexibility and compatibility. Therefore, fuel cell vehicles play an increasingly important role in the field of new energy vehicles.

[0004] The large-scale promotion of fuel cell vehicles requires a complete infrastructure, but the high cost of hydrogen station construction, hydrogen production costs, and large-scale storage and transportation of hydrogen energy have seriously restricted the rapid promotion and use of fuel cell vehicles. In addition, on-board hydrogen production technology also has problems such as high energy consumption, slow response speed, and poor emission reduction effect. Summary of the invention

[0005] The object of the present invention is to provide a hydrogen production-fuel cell integrated energy supply system and a mobile power-consuming device to solve the problems in the above background.

[0006] The first object of the present invention is to provide: a hydrogen production-fuel cell integrated energy supply system, comprising:

[0007] Fuel cells;

[0008] A hydrogen production unit, the hydrogen production unit is used to provide hydrogen to the fuel cell, and at least comprises: a hydrogen production chamber, a hydrogen production fuel rod, a water pipeline and a gas pipeline, the output end of the water pipeline and the input end of the gas pipeline are respectively connected to the hydrogen production chamber; the hydrogen production fuel rod is slidably arranged in the hydrogen production chamber, and its immersion depth is adjustable;

[0009] A controller is used to adjust the operating state of the fuel cell and / or the hydrogen production unit, and the operating state at least includes the immersion depth of the hydrogen production fuel rod.

[0010] Furthermore, the water pipeline at least includes: a first water pipeline, the input end of which is connected to a water source, and a first water pump is arranged on the first water pipeline; a second water pipeline, the input end of which is connected to a drainage end of the fuel cell, and a second water pump is arranged on the second water pipeline;

[0011] A liquid level meter is arranged in the hydrogen production tank, and a signal of the liquid level meter is connected to the controller to control the start and stop of the first water pump and / or the second water pump.

[0012] Furthermore, the gas pipeline at least includes: a first gas pipeline and a second gas pipeline, the output end of the first gas pipeline and the input end of the second gas pipeline are respectively connected to the hydrogen storage tank, and the output end of the second gas pipeline is connected to the air inlet end of the fuel cell.

[0013] Furthermore, a pressure sensor and a pressure relief valve are provided in the hydrogen production warehouse and / or the hydrogen storage tank, and the pressure sensor signal is connected to the controller to control the opening and closing of the pressure relief valve;

[0014] An electric heater and a thermocouple are provided in the hydrogen production chamber. The electric heater is used to heat the liquid in the hydrogen production chamber. The thermocouple signal is connected to the controller to control the start and stop of the electric heater.

[0015] Furthermore, a steam-water separator is arranged at the input end of the first gas transmission pipeline, and the steam-water separator is used to purify hydrogen;

[0016] A gas compressor and a cooler are arranged between the first gas transmission pipeline and the hydrogen storage tank, and the start and stop of the gas compressor and the cooler are controlled by the controller;

[0017] The second gas pipeline is provided with a pressure regulating valve, and the pressure regulating valve signal is connected to the controller to regulate the gas flow rate of the second gas pipeline.

[0018] Furthermore, an electric slide rail is provided on the inner wall of the hydrogen production warehouse, a porous plate is connected to the electric slide rail, the hydrogen production fuel rod is arranged at the bottom of the porous plate, and a HEPA high-efficiency filter is arranged above the porous plate;

[0019] A sediment discharge tank is arranged at the bottom of the hydrogen production warehouse, a sediment discharge tank is provided with a sediment discharge valve, and the controller regulates the opening and closing of the sediment discharge valve.

[0020] Furthermore, the hydrogen production fuel rod is an aluminum alloy fuel rod, and the aluminum alloy fuel rod contains at least one of a low melting point metal element and an active material;

[0021] The active material includes one or more of a water-soluble inorganic salt, a hydride and a metal oxide;

[0022] The water-soluble inorganic salt is BiCl3, NiCl2, SnCl2 or NaCl;

[0023] The hydride is LiBH4, NaBH4 or LiH;

[0024] The metal oxide is Al2O3, CaO, Cr2O3 or CuO.

[0025] Furthermore, the hydrogen production warehouse contains an alkaline solution, and the alkaline solution is one or more of a NaOH solution, a composite solution of NaOH and Na2SnO3, and a composite solution of NaAlO2 and Na2SnO3;

[0026] The fuel cell is a proton exchange membrane fuel cell or a solid oxide fuel cell.

[0027] Another aspect of the present invention is to provide: a mobile power-consuming device, which is an automobile-type device or a ship-type device, and its power supply method is: hybrid power supply using a battery and the hydrogen production-fuel cell integrated energy supply system as described above, when the output power of the fuel cell is ≥ the required power of the mobile power-consuming device, the fuel cell supplies power to the mobile power-consuming device; when the output power of the fuel cell is < the required power of the mobile power-consuming device, the battery supplies power to the mobile power-consuming device.

[0028] Furthermore, the controller regulates the operating state of the fuel cell and / or the hydrogen production unit according to the difference between the output power of the fuel cell and the required power of the mobile power-consuming device.

[0029] The beneficial effects of the present invention are as follows: (1) the energy supply system uses cheap, easily available and widely available water as a hydrogen carrier, uses metal aluminum with active chemical properties and high energy density as a reactant to extract and replace hydrogen elements in water, and uses an alkaline solution to consume the oxide film on the surface of aluminum to promote the reaction between aluminum and water, thereby realizing a controllable hydrogen production reaction; relying on fuel cell technology, utilizing the integration of aluminum / water hydrogen production method and fuel cells, the chemical energy stored in metal aluminum is converted into power output for mobile electrical equipment, so that mobile electrical equipment equipped with the energy supply system can "self-produce" the fuel required for the fuel cell, instead of the fixed-point hydrogen fuel replenishment method (i.e., hydrogen refueling station), avoiding high construction costs and hydrogen production costs, as well as safety issues in large-scale storage and transportation of hydrogen energy.

[0030] (2) The controller in the energy supply system can perform feedback adjustment through multiple sensors and functional components (such as electric slides, electric heaters, etc.), receive real-time power and energy information required for the operation of mobile electrical equipment, and dynamically adjust the operating status of the fuel cell and hydrogen production unit according to this information, preset programs and parameters during low-temperature operation or cold start, system start and stop stages, and when the power demand of mobile electrical equipment changes, thereby improving the response speed of the energy supply system.

[0031] (3) The amount of hydrogen produced in the present invention is not limited by the amount of charge, and the reaction can be continued by replacing the hydrogen production fuel rod, which is convenient for operation and easy to implement. In addition, the sodium hydroxide consumed in the hydrogen production reaction will be regenerated by the decomposition of NaAl(OH)4 in the reaction. In essence, this reaction process only consumes water, and NaOH only plays a catalytic role. Therefore, it is only necessary to add water to the hydrogen production warehouse, and the power generation product of the fuel cell can be recycled. The hydrogen production raw materials are widely available, the cost is low, the loading operation is convenient, and the safety factor is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is an overall operation flow chart of an embodiment of the present invention;

[0033] Figure 2 is a schematic structural diagram of a hydrogen production unit in an embodiment of the present invention;

[0034] In the picture;

[0035] 100. Battery;

[0036] 200. Fuel cell;

[0037] 300, hydrogen production unit; 301, hydrogen production warehouse; 302, hydrogen production fuel rod; 303, first water pipeline; 304, second water pipeline; 305, first water pump; 306, second water pump; 307, liquid level meter; 308, first gas pipeline; 309, second gas pipeline; 310, hydrogen storage tank; 311, pressure relief valve; 312, pressure sensor; 313, electric heater; 314, thermocouple; 315, steam-water separator; 316, gas compressor; 317, cooler; 318, electric slide rail; 319, porous plate; 320, HEPA high-efficiency filter; 321, sedimentation discharge tank; 322, sedimentation discharge valve; 323, pressure regulating valve;

[0038] 400. Controller. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Reference Figure 1-2 The present invention provides a hydrogen production-fuel cell integrated energy supply system and a mobile power-consuming device equipped with the energy supply system. In this embodiment, the mobile power-consuming device can be a car or a ship, and its power supply method is: using a battery 100 and the hydrogen production-fuel cell integrated energy supply system for hybrid power supply. The hydrogen production-fuel cell integrated energy supply system comprises: a fuel cell 200, a hydrogen production unit 300 and a controller 400. The hydrogen production unit 300 is used to provide hydrogen to the fuel cell 200. The hydrogen production unit 300 comprises a hydrogen production chamber 301, a hydrogen production fuel rod 302, a water pipeline and a gas pipeline. The output end of the water pipeline and the input end of the gas pipeline are respectively connected to the hydrogen production chamber 301, and are respectively used to input liquid hydrogen production raw material-water into the hydrogen production chamber 301 and output hydrogen prepared in the hydrogen production chamber 301; the hydrogen production fuel rod 302 is slidably arranged in the hydrogen production chamber 301, and its immersion depth is adjustable. When its immersion depth changes, the contact area between the hydrogen production fuel rod 302 and the liquid hydrogen production raw material in the hydrogen production chamber 301 changes, thereby changing the amount of hydrogen produced per unit time, that is, the hydrogen production rate can be regulated; the controller 400 is used to regulate the operating state of the fuel cell 200 and the hydrogen production unit 300, such as the immersion depth of the hydrogen production fuel rod 302.

[0041] In the above-mentioned mobile power equipment, when the output power of the fuel cell 200 is ≥ the required power of the mobile power equipment, the fuel cell 200 supplies power to the mobile power equipment, and when the output energy of the fuel cell 200 is in excess, the battery 100 can also be charged; when the output power of the fuel cell 200 is < the required power of the mobile power equipment, the battery 100 supplies power to the mobile power equipment, and through the coordination of the fuel cell 200 and the battery 100, a stable power supply to the mobile power equipment is achieved, and the controller 400 adjusts the operating state of the fuel cell 200 and / or the hydrogen production unit 300 according to the difference between the output power of the fuel cell 200 and the required power of the mobile power equipment, so as to enable it to start quickly and smoothly.

[0042] In addition, the present invention integrates the hydrogen production unit 300 with the fuel cell 200 for energy supply, so that the mobile power equipment equipped with the energy supply system can "self-produce" the fuel required by the fuel cell 200, instead of the fixed-point replenishment of hydrogen fuel (i.e., hydrogen refueling station), avoiding the high construction cost and hydrogen production cost, as well as the safety issues of large-scale storage and transportation of hydrogen energy. The controller 400 can be connected to the mobile power equipment, and the controller 400 is used to receive the power and energy information required for the operation of the mobile power equipment, and according to this information, according to the preset program and parameters, the immersion depth of the hydrogen fuel rod 302 is adjusted to achieve dynamic adjustment of the preparation efficiency of the fuel (hydrogen) required by the fuel cell 200 according to the actual power consumption, and improve the response speed of the energy supply system.

[0043] To ensure safety and hydrogen purity, the hydrogen production warehouse 301 should be a closed container. To facilitate the installation and disassembly of its internal structure, it should be constructed as a detachable closed container, for example, including a warehouse body and a detachable warehouse cover; and because the density of hydrogen is relatively small, in order to ensure smooth gas production and transmission, the water supply pipeline should be located at the lower part of the hydrogen production warehouse 301, the gas transmission pipeline should be located at the upper part of the hydrogen production warehouse 301, and a pressure relief valve 311 and a pressure sensor 312 should be constructed at the upper part of the hydrogen production warehouse 301. The pressure sensor 312 is connected to the controller 400 through a signal. When the pressure sensor 312 detects that the pressure in the hydrogen production warehouse 301 exceeds the limit, the pressure relief valve 311 is opened through the controller 400 to release the pressure to ensure safety.

[0044] In this embodiment, the water pipeline includes a first water pipeline 303 and a second water pipeline 304. The input end of the first water pipeline 303 is connected to a water source (the water source can be in the form of a raw water tank mounted on a mobile electrical equipment, etc., which is not the main technical innovation of this case and will not be described in detail). A first water pump 305 is arranged thereon, and the first water pump 305 is connected to the controller 400 by signal. The controller 400 controls the amount of water delivered from the first water pipeline 303 to the hydrogen production warehouse 301 by regulating the opening and closing of the first water pump 305; the input end of the second water pipeline 304 is connected to the drainage end of the fuel cell 200, and a second water pump 306 is arranged thereon, and the second water pump 306 is connected to the controller 400 by signal. The controller 400 controls the opening and closing of the second water pump 306 to transport the power generation product (water) of the fuel cell 200 to the hydrogen production warehouse 301 for recycling as a liquid hydrogen production raw material.

[0045] By setting the second water pipeline 304, the power generation product (water) of the fuel cell 200 can be recycled, reducing the consumption of hydrogen production raw materials and reducing the emission of power generation products (water). The first water pipeline 303 is mainly used to provide liquid hydrogen production raw materials-water at the initial start-up of the system. It can also be used to replenish water for the hydrogen production warehouse 301 after the entire system consumes water and the water supply of the second water pipeline is insufficient. In order to automatically control the water supply of the first water pipeline 303 and the second water pipeline 304, a liquid level meter 307 is configured in the hydrogen production warehouse 301 in the system. The liquid level meter 307 is connected to the controller 400 through a signal. The controller 400 controls the start and stop of the first water pump 305 and the second water pump 306 according to the received liquid level signal. When the liquid level in the hydrogen production chamber 301 is lower than the standard value, the controller 400 turns on the second water pump 306 to take in water. When the fuel cell 200 cannot provide sufficient water to the hydrogen production chamber 301 due to system consumption, the controller 400 turns on the first water pump 305 to replenish water.

[0046] In order to ensure the smooth operation of the energy supply system, the gas pipeline in this embodiment is configured as follows: including a first gas pipeline 308 and a second gas pipeline 309, a hydrogen storage tank 310 is configured between the first gas pipeline 308 and the second gas pipeline 309, and the output end of the first gas pipeline 308 and the input end of the second gas pipeline 309 are respectively connected to the hydrogen storage tank 310, and the output end of the second gas pipeline 309 is connected to the intake end of the fuel cell 200. In the initial start-up, the hydrogen input amount of the first gas pipeline to the hydrogen storage tank 310 is greater than the hydrogen output amount of the second gas pipeline to the hydrogen storage tank 310, and a certain amount of hydrogen is accumulated in the hydrogen storage tank 310 through the difference between the two, so that when the operating power of the electrical equipment increases suddenly, the hydrogen storage tank 310 can still ensure that sufficient hydrogen is provided to the fuel cell 200, so as to ensure the smooth operation of the energy supply system and the electrical equipment. Preferably, the hydrogen storage tank 310 is also provided with a pressure sensor 312 and a pressure relief valve 311. The pressure sensor 312 is connected to the controller 400 through a signal. When the pressure sensor 312 detects that the pressure in the hydrogen storage tank 310 exceeds a limit, the pressure relief valve 311 is opened through the controller 400 to release the pressure to ensure safety.

[0047] There are many ways to regulate the difference between the hydrogen input amount of the first gas pipeline to the hydrogen storage tank 310 and the hydrogen output amount of the second gas pipeline to the hydrogen storage tank 310. For example, the immersion depth of the hydrogen-producing fuel rod 302 can be increased or the temperature of the hydrogen production chamber 301 can be increased to increase the hydrogen production speed of the hydrogen production chamber 301, thereby increasing the hydrogen input amount of the first gas pipeline to the hydrogen storage tank 310. Alternatively, a pressure regulating valve 323 can be configured on the second gas pipeline 309, and the pressure regulating valve 323 is connected to the controller 400 through a signal. The controller 400 regulates the gas flow rate by reducing the opening of the pressure regulating valve 323, that is, reducing the hydrogen output amount of the second gas pipeline 309 to the hydrogen storage tank 310.

[0048] There are many ways to heat up the hydrogen production warehouse 301, which can be selected according to actual needs. This embodiment only exemplifies some feasible ways, but does not limit the scope of protection of the present invention. In this embodiment, an electric heater 313 and a thermocouple 314 are configured. The electric heater 313 and the thermocouple 314 are both located in the hydrogen production warehouse 301. The electric heater 313 is preferably configured below the liquid hydrogen production raw material to heat the liquid hydrogen production raw material to increase the hydrogen production speed and improve the response speed or energy supply stability of the energy supply system; the thermocouple 314 is connected to the controller 400 through a signal, and the controller 400 receives the temperature signal in the hydrogen production warehouse 301 detected by the thermocouple 314 to control the start and stop of the electric heater 313. In addition, the fuel cell 200 releases heat when generating electricity, so its power generation product (water) will also have a certain temperature. When its power generation product (water) enters the hydrogen production chamber 301 through the second water pipeline 304, it will also exchange heat with the original liquid hydrogen production raw materials in the hydrogen production chamber 301, thereby increasing the temperature inside the hydrogen production chamber 301.

[0049] Reference Figure 2 A gas-water separator 315 is arranged at the input end of the first gas pipeline 308, and the gas-water separator 315 is located in the hydrogen production chamber 301 to purify hydrogen; a gas compressor 316 and a cooler 317 are arranged between the first gas pipeline 308 and the hydrogen storage tank 310, and the start and stop of the gas compressor 316 and the cooler 317 are regulated by the controller 400. The gas compressor 316 is used to assist the transportation of hydrogen, and the cooler 317 is used to cool the hydrogen to prevent its excessive temperature from having a negative impact on the structure of the hydrogen storage tank 310 or the operation of the fuel cell 200; when the energy supply system is started at low temperature, in order to ensure the response speed of the fuel cell 200, the cooler 317 can be temporarily closed, so that the hydrogen with a certain temperature provided by the hydrogen production chamber 301 enters the fuel cell 200, thereby promoting the rapid start of the fuel cell 200 and the mobile electrical equipment.

[0050] In this technical solution, the sliding connection mode between the hydrogen production fuel rod 302 and the hydrogen production warehouse 301 can be selected according to actual needs. This embodiment only exemplifies some feasible modes, but does not limit the protection scope of the present invention. In this embodiment, the inner wall of the hydrogen production warehouse 301 is provided with an electric slide rail 318, which is vertically configured and connected to a horizontally configured porous plate 319. A plurality of hydrogen production fuel rods 302 are evenly dispersed at the bottom of the porous plate 319, but do not block the holes on the porous plate 319. The electric slide rail 318 is controlled by the controller 400 to move, thereby driving the porous plate 319 and the hydrogen production fuel rods 302 connected to the porous plate 319 to rise and fall, and synchronously changing the immersion depth of the plurality of hydrogen production fuel rods 302; the holes on the porous plate 319 can allow the hydrogen generated below to escape to the top of the porous plate 319, so as to be smoothly output through the first gas pipeline 308. Preferably, a HEPA high-efficiency filter 320 is disposed above the porous plate 319 to prevent tiny particles such as smoke and dust from passing through.

[0051] The hydrogen-producing fuel rod 302 in this embodiment is an aluminum alloy fuel rod, which contains at least one of a low-melting-point metal element and an active material; the active material includes one or more of a water-soluble inorganic salt, a hydride and a metal oxide, the water-soluble inorganic salt is BiCl3, NiCl2, SnCl2 or NaCl, the hydride is LiBH4, NaBH4 or LiH, and the metal oxide is Al2O3, CaO, Cr2O3 or CuO.

[0052] The method for preparing aluminum alloy fuel rods containing low-melting-point metal elements is: using high-temperature smelting method, taking aluminum as the base material, and doping a small amount of low-melting-point metal elements. The method for preparing aluminum alloy fuel rods containing active materials is: high-energy mechanical ball milling of high-purity aluminum powder with one or more of water-soluble inorganic salts, hydrides or metal oxides to form aluminum-based mixture powder, then placing the aluminum-based mixture powder into a module for tableting, and sintering into a plurality of cylindrical ceramic core blocks, and finally stacking the cylindrical ceramic core blocks in a slender aluminum alloy material casing.

[0053] The liquid hydrogen production raw material in the hydrogen production chamber 301 also contains an alkaline solution, which is one or more of a NaOH solution, a NaOH and Na2SnO3 composite solution, and a NaAlO2 and Na2SnO3 composite solution; the fuel cell 200 is a proton exchange membrane fuel cell (PEMFC) or a solid oxide fuel cell (SOFC). In a strong alkaline solution, OH - It can destroy the oxide layer protective film on the aluminum surface to form AlO -2 Therefore, in an alkaline environment, aluminum can undergo the following dissolution reaction to produce hydrogen even at room temperature:

[0054] 2Al+6H2O+2NaOH→2NaAl(OH)4+3H2 ①

[0055] NaAl(OH)4→NaOH+Al(OH)3 ②

[0056] By optimizing the reaction conditions, the above reaction process essentially only needs to consume water, so it is only necessary to add water to the hydrogen production chamber 301 through a water pipeline; however, the above reaction will produce precipitation, and the deposition of the precipitation will not only not affect the precise relationship between the liquid level in the hydrogen production chamber 301, the immersion depth of the hydrogen production fuel rod 302 and the hydrogen production speed, but also affect the heating effect of the electric heater 313, etc. Therefore, a precipitation discharge tank 321 can be constructed at the bottom of the hydrogen production chamber 301, and a precipitation discharge valve 322 can be provided on the precipitation discharge tank 321, and the controller 400 regulates the opening and closing of the precipitation discharge valve 322 to discharge the precipitation from the hydrogen production chamber 301 in time.

[0057] This energy supply system uses cheap, easily available and widely available water as a hydrogen carrier, and uses metal aluminum with active chemical properties and high energy density as a reactant to extract and replace hydrogen elements in water. An alkaline solution is used to consume the oxide film on the surface of aluminum, prompting the reaction between aluminum and water, thereby achieving a controllable hydrogen production reaction; relying on the fuel cell 200 technology, the aluminum / water hydrogen production method is integrated with the fuel cell 200 to convert the chemical energy stored in the metal aluminum into power output for mobile electrical equipment.

[0058] When a mobile power-consuming device equipped with the energy supply system is powered by a hybrid power supply of the storage battery 100 and the hydrogen production-fuel cell integrated energy supply system, the power supply process is as follows:

[0059] The mobile power-consuming device starts, and the engines of the battery 100 and the fuel cell 200 start running. Since the output power of the fuel cell 200 is less than the power required by the mobile power-consuming device at the initial start-up, the battery 100 supplies power to the mobile power-consuming device.

[0060] In the present integrated energy supply system, under the control of the controller 400, the first water pump 305 is turned on and fills the hydrogen production chamber 301 with water to the standard liquid level, and the electric slide rail 318 drives the hydrogen production fuel rod 302 to descend and contact the liquid hydrogen production raw material in the hydrogen production chamber 301 to start hydrogen production; at the same time, the steam-water separator 315 and the gas compressor 316 are started to output hydrogen; wherein, the descending height (i.e., the immersion depth) of the hydrogen production fuel rod 302 is feedback-regulated by the controller 400 and the pressure sensor 312 in the hydrogen storage tank 310;

[0061] When operating in the initial stage of startup or in a low-temperature environment, the temperature of the integrated energy supply system is relatively low, so the controller 400 can turn on the electric heater 313 to prevent the liquid hydrogen production raw material from freezing and speed up the hydrogen production speed, and turn off the cooler 317 to prevent the hydrogen temperature from being too low and affecting the response speed of the fuel cell 200; wherein, the start and stop of the electric heater 313 and the cooler 317 are feedback-regulated by the controller 400 and the thermocouple 314 in the hydrogen production chamber 301;

[0062] After the fuel cell 200 runs smoothly, the first water pump 305 is turned off and the second water pump 306 is turned on. Liquid hydrogen production raw materials (water) are mainly provided through the second water pipeline 304. If the liquid level in the hydrogen production warehouse 301 is too low and the second water pipeline 304 cannot restore its liquid level to above the standard water level, the first water pump 305 can be turned on to replenish water. Since the reaction in the hydrogen production warehouse 301 will produce precipitation, the precipitation deposition may cause a surge in the liquid level. When the liquid level rises to the limit liquid level, the precipitation discharge valve 322 is opened, and the precipitation is discharged and then replenished to the standard water level through the first water pump 305. The above process is all regulated by the controller 400. The controller 400 is pre-programmed with a control system and pre-recorded with various related parameters. The related parameters are collected through a large number of research and development experiments. The liquid level information in the hydrogen production warehouse 301 is collected by the liquid level meter 307 and fed back to the controller 400.

[0063] When the power demand of the mobile power-consuming device surges, if the instantaneous response of the fuel cell 200 cannot meet the demand, the storage battery 100 can be used to supply power to ensure the stable operation of the mobile power-consuming device.

[0064] During the above operation process, if the output power of the fuel cell 200 is greater than the power demand of the mobile electrical equipment, the electric energy of the electric heater 313, the first water pump 305, the second water pump 306, the gas compressor 316, the cooler 317 and other components is supplied by the fuel cell 200; if the output power of the fuel cell 200 is less than or equal to the power demand of the mobile electrical equipment, the electric energy of the electric heater 313, the first water pump 305, the second water pump 306, the gas compressor 316, the cooler 317 and other components is supplied by the battery 100 to ensure the normal startup and smooth operation of the integrated energy supply system.

[0065] Compared with the prior art, the beneficial effects of the present invention include at least:

[0066] (1) This energy supply system uses cheap, easily available and widely available water as a hydrogen carrier, and uses metal aluminum, which has active chemical properties and high energy density, as a reactant to extract and replace the hydrogen element in the water. An alkaline solution is used to consume the oxide film on the surface of the aluminum, prompting the aluminum to react with water, thereby achieving a controllable hydrogen production reaction; relying on the fuel cell 200 technology, the aluminum / water hydrogen production method is integrated with the fuel cell 200 to convert the chemical energy stored in the metal aluminum into power output for mobile electrical equipment, so that the mobile electrical equipment equipped with this energy supply system can "self-produce" the fuel required by the fuel cell 200, instead of the fixed-point hydrogen fuel replenishment method (i.e., hydrogen refueling station), avoiding the high construction cost and hydrogen production cost, as well as the safety issues of large-scale storage and transportation of hydrogen energy.

[0067] (2) The controller 400 in the energy supply system can perform feedback adjustment through multiple sensors and functional components (such as the electric slide rail 318, the electric heater 313, etc.), and receive the power and energy information required for the operation of the mobile electrical equipment in real time. Based on this information, in accordance with preset procedures and parameters, during low-temperature operation or cold start, system start and stop stages, and when the power demand of the mobile electrical equipment changes, the operating status of the fuel cell 200 and the hydrogen production unit 300 is dynamically adjusted to improve the response speed of the energy supply system.

[0068] (3) The amount of hydrogen produced in the present invention is not limited by the amount of charge, and the reaction can be continued by replacing the hydrogen production fuel rod 302, which is convenient for operation and easy to implement. In addition, the sodium hydroxide consumed in the hydrogen production reaction will be regenerated by the decomposition of NaAl(OH)4 in the reaction. In essence, this reaction process only consumes water, and NaOH only plays a catalytic role. Therefore, it is only necessary to add water to the hydrogen production warehouse 301, and the power generation product of the fuel cell 200 can be recycled. The hydrogen production raw materials are widely available, the cost is low, the loading operation is convenient, and the safety factor is high.

[0069] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A hydrogen production-fuel cell integrated energy supply system, characterized in that: include: Fuel cells; A hydrogen production unit, the hydrogen production unit is used to provide hydrogen to the fuel cell, and at least comprises: a hydrogen production chamber, a hydrogen production fuel rod, a water pipeline and a gas pipeline, the output end of the water pipeline and the input end of the gas pipeline are respectively connected to the hydrogen production chamber; the hydrogen production fuel rod is slidably arranged in the hydrogen production chamber, and its immersion depth is adjustable; A controller is used to adjust the operating state of the fuel cell and / or the hydrogen production unit, and the operating state at least includes the immersion depth of the hydrogen production fuel rod.

2. The hydrogen production-fuel cell integrated energy supply system according to claim 1, characterized in that: The water pipeline at least includes: a first water pipeline, the input end of which is connected to a water source and a first water pump is arranged on the first water pipeline; a second water pipeline, the input end of which is connected to a drain end of the fuel cell and a second water pump is arranged on the second water pipeline; A liquid level meter is arranged in the hydrogen production tank, and a signal of the liquid level meter is connected to the controller to control the start and stop of the first water pump and / or the second water pump.

3. The hydrogen production-fuel cell integrated energy supply system according to claim 1 or 2, characterized in that: The gas pipeline at least includes: a first gas pipeline and a second gas pipeline, the output end of the first gas pipeline and the input end of the second gas pipeline are respectively connected to the hydrogen storage tank, and the output end of the second gas pipeline is connected to the air inlet end of the fuel cell.

4. The hydrogen production-fuel cell integrated energy supply system according to claim 3, characterized in that: A pressure sensor and a pressure relief valve are provided in the hydrogen production warehouse and / or the hydrogen storage tank, and the pressure sensor signal is connected to the controller to control the opening and closing of the pressure relief valve; An electric heater and a thermocouple are provided in the hydrogen production chamber. The electric heater is used to heat the liquid in the hydrogen production chamber. The thermocouple signal is connected to the controller to control the start and stop of the electric heater.

5. The hydrogen production-fuel cell integrated energy supply system according to claim 4, characterized in that: A steam-water separator is arranged at the input end of the first gas transmission pipeline, and the steam-water separator is used to purify hydrogen; A gas compressor and a cooler are arranged between the first gas transmission pipeline and the hydrogen storage tank, and the start and stop of the gas compressor and the cooler are controlled by the controller; The second gas pipeline is provided with a pressure regulating valve, and the pressure regulating valve signal is connected to the controller to regulate the gas flow rate of the second gas pipeline.

6. The hydrogen production-fuel cell integrated energy supply system according to any one of claims 1-2, 4-5, characterized in that: The inner wall of the hydrogen production warehouse is provided with an electric slide rail, a porous plate is connected to the electric slide rail, the hydrogen production fuel rod is arranged at the bottom of the porous plate, and a HEPA high-efficiency filter is arranged above the porous plate; A sediment discharge tank is arranged at the bottom of the hydrogen production warehouse, a sediment discharge tank is provided with a sediment discharge valve, and the controller regulates the opening and closing of the sediment discharge valve.

7. The hydrogen production-fuel cell integrated energy supply system according to claim 6, characterized in that: The hydrogen production fuel rod is an aluminum alloy fuel rod, and the aluminum alloy fuel rod contains at least one of a low melting point metal element and an active material; The active material includes one or more of a water-soluble inorganic salt, a hydride and a metal oxide; The water-soluble inorganic salt is BiCl3, NiCl2, SnCl2 or NaCl; The hydride is LiBH4, NaBH4 or LiH; The metal oxide is Al2O3, CaO, Cr2O3 or CuO.

8. The hydrogen production-fuel cell integrated energy supply system according to claim 7, characterized in that: The hydrogen production warehouse contains an alkaline solution, and the alkaline solution is one or more of a NaOH solution, a NaOH and Na2SnO3 composite solution, and a NaAlO2 and Na2SnO3 composite solution; The fuel cell is a proton exchange membrane fuel cell or a solid oxide fuel cell.

9. A mobile electrical equipment, characterized in that: The mobile power-consuming equipment is an automobile-type equipment or a ship-type equipment, and its power supply method is: hybrid power supply is adopted by using a storage battery and the hydrogen production-fuel cell integrated energy supply system described in any one of claims 1-8; when the output power of the fuel cell is ≥ the required power of the mobile power-consuming equipment, the fuel cell supplies power to the mobile power-consuming equipment; when the output power of the fuel cell is < the required power of the mobile power-consuming equipment, the storage battery supplies power to the mobile power-consuming equipment.

10. The mobile electric device according to claim 9, characterized in that: The controller regulates the operating state of the fuel cell and / or the hydrogen production unit according to the difference between the output power of the fuel cell and the required power of the mobile power-consuming device.

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