CN110792479B - Hydrogen power generation system - Google Patents
Hydrogen power generation system Download PDFInfo
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- CN110792479B CN110792479B CN201911081418.9A CN201911081418A CN110792479B CN 110792479 B CN110792479 B CN 110792479B CN 201911081418 A CN201911081418 A CN 201911081418A CN 110792479 B CN110792479 B CN 110792479B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B23/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01B23/02—Adaptations for driving vehicles, e.g. locomotives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/70—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by fuel cells
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G1/00—Hot gas positive-displacement engine plants
- F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
- F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a hydrogen power generation system, which comprises a hydrogen storage tank, a Venturi tube, a gas generator set, a fuel cell, an engine set and a storage battery, wherein the Venturi tube is arranged in the hydrogen storage tank; the hydrogen storage tank is connected with the venturi tube, the venturi tube is connected with the gas generator set, the gas generator set is respectively connected with the storage battery and the fuel cell, and the fuel cell is connected with the vehicle transmission system; the engine set comprises a power piston, a thermal piston and a transmission assembly, wherein the power piston is connected with the transmission assembly, the thermal piston is connected with the transmission assembly, and the transmission assembly is connected with a vehicle transmission system; the venturi tube is also connected with a power piston, and the power piston is connected with a fuel cell; the heating end of the thermal piston is connected with the storage battery and the fuel cell, and the cooling end of the thermal piston is connected with the hydrogen storage tank. The invention has the beneficial effects that: the energy of hydrogen is fully utilized, and the working efficiency is improved.
Description
Technical Field
The invention relates to a power generation system, in particular to a system for generating power based on hydrogen energy transmission.
Background
Data statistics shows that 60% of urban atmospheric pollution is caused by tail gas emission of motor vehicles, so that the new energy automobile gradually replaces the traditional fuel oil automobile. In the technical routes of various new energy automobiles, electric automobiles represented by hybrid power, pure electric automobiles and fuel cell automobiles are generally considered as the main direction of the transformation development of the energy power system of the automobile in the future, and become the key points of the development of the automobile strong countries and the main automobile manufacturers in the world.
Compared with a lithium battery electric automobile, the most obvious advantage of adopting the fuel cell is that a long charging process is not needed, only a few minutes of hydrogen adding process is needed, and in addition, compared with water pollution possibly caused by various toxic pollutants generated after the lithium battery is scrapped, the fuel cell mainly generates water, and the problem in the aspect does not exist after the use. However, for hydrogen fuel cell vehicles, the high pressure hydrogen on board the vehicle contains huge kinetic energy and pressure energy of air, but is not well utilized.
For example, application No. 201410707638.9 discloses a hydrogen power generation system, which includes a fuel cell for generating electric energy by electrochemical reaction between hydrogen and oxygen, and a water circulation cooling system for cooling the fuel cell; the method is characterized in that: the water circulation cooling system comprises a heat dissipation device, at least two water pumps, a first water container, a water collector and a control device; the heat dissipation device is positioned in the fuel cell; the water in the first water container can enter the heat dissipation device from the water inlet of the fuel cell after being collected by the water collector under the driving action of the water pump, and then flows back to the first water container from the water outlet of the fuel cell; the control device is electrically connected with the at least two water pumps to control the operation of each water pump.
The hydrogen power generation system does not apply the air kinetic energy and the pressure energy of the hydrogen.
In view of the foregoing, there is a need for improvements and enhancements in the art.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to solve the problem that the air kinetic energy and the pressure energy in the high-pressure hydrogen are not utilized.
The invention solves the technical problems through the following technical means:
a hydrogen power generation system comprises a hydrogen storage tank, a Venturi tube, a gas generator set, a fuel cell, an engine set and a storage battery; the hydrogen storage tank is connected with the venturi tube, the venturi tube is connected with the gas generator set, the gas generator set is respectively connected with the storage battery and the fuel cell, and the fuel cell is connected with the vehicle transmission system;
the engine set comprises a power piston capable of converting hydrogen kinetic energy into first mechanical energy, a thermal piston capable of converting thermal energy into second mechanical energy and a transmission assembly, wherein the power piston is connected with the transmission assembly, the thermal piston is connected with the transmission assembly, and the transmission assembly is connected with a vehicle transmission system;
the venturi tube is also connected with a power piston, and the power piston is connected with a fuel cell; the heating end of the thermal piston is connected with the storage battery and the fuel cell, and the cooling end of the thermal piston is connected with the hydrogen storage tank.
After hydrogen flow with pressure in a hydrogen storage tank enters a Venturi tube, the hydrogen flow speed is increased, the pressure is reduced, high-speed hydrogen flow is divided into two parts, one part generates electricity through a gas generator set, the generated electric energy is stored in a storage battery, meanwhile, the high-speed hydrogen flow passes through the gas generator set and then is changed into low-pressure hydrogen flow to enter a fuel cell, and the fuel cell converts the chemical energy of the hydrogen into electric energy to be transmitted to a vehicle transmission system so as to drive a vehicle; the other part of high-speed hydrogen converts the kinetic energy of the hydrogen into first mechanical energy through a power piston and transmits the first mechanical energy to a vehicle transmission system through a transmission assembly, meanwhile, the heating end of the thermal piston is connected with heat generated by a gas generator set for storing electric energy in a storage battery and heat generated by hydrogen absorption of a fuel cell, a cold source at the cooling end of the thermal piston is from the expansion heat absorption of the hydrogen storage tank 1 in the hydrogen desorption process or cold generated in the hydrogen desorption process of metal hydride in the hydrogen storage tank, and the heat energy is converted into second mechanical energy and transmitted to the vehicle transmission system through the transmission assembly; the energy of hydrogen is fully utilized, the working efficiency is improved, and a new power device system is provided for the automobile taking hydrogen as energy.
Preferably, the hydrogen storage tank is a pure hydrogen storage tank with a certain pressure or an alloy hydrogen storage tank with a certain pressure.
Wherein, the hydrogen storage tank can be a pure hydrogen storage tank which stores high-pressure hydrogen of 35MPa-70MPa and can generate high-pressure hydrogen flow; the system can also be an alloy hydrogen storage tank with low pressure of 0-5MPa, and the alloy hydrogen storage tank absorbs heat in the hydrogen discharge process, so that the system provided by the invention can provide cold.
Preferably, the venturi tube comprises an inlet section, a contraction section, a throat and a flat section which are connected in sequence.
Preferably, the diameter of the inlet section is larger than that of the throat, the contraction section is a conical pipe, the cone angle is 21 degrees +/-2 degrees, the diameter of the throat is the same as that of the straight section, and the diameter and the length of the throat are the same.
The diffusion section of the traditional Venturi tube is changed into a straight section, so that high-speed hydrogen with high kinetic energy can be obtained.
Preferably, the gas generator set comprises wind blades and a wind generator. The high-speed hydrogen flow drives the wind power blade to rotate and drives the gas generator to generate electricity.
Preferably, the transmission assembly comprises a first linkage rod, a second linkage rod and a crankshaft flywheel set, the power piston is connected with the first linkage rod in a driving mode, the heating power piston is connected with the second linkage rod in a driving mode, the first linkage rod and the second linkage rod are both connected with the crankshaft flywheel set, and the crankshaft flywheel set is connected with the vehicle transmission system in a driving mode.
The power piston and the thermal piston act together to form a power and thermal double-cylinder hydrogen engine set together with the first linkage rod, the second linkage rod and the crankshaft flywheel set, and the torque output outwards stably drives a vehicle transmission system finally to ensure the stable operation of the vehicle.
Preferably, the system further comprises at least three heat exchangers, at least one of which is arranged between the hydrogen storage tank and the cooling end of the thermal piston, at least one of which is arranged between the fuel cell and the heating end of the thermal piston, and at least one of which is arranged between the storage battery and the heating end of the thermal piston.
Preferably, the fuel cell power generation device further comprises at least two gas pressure stabilizing valves, wherein at least one gas pressure stabilizing valve is arranged between the gas generator set and the fuel cell, and at least one gas pressure stabilizing valve is arranged between the power piston and the fuel cell.
Preferably, the hydrogen gas pressure entering the fuel cell is 1.5 atmospheres.
The two gas pressure stabilizing valves keep the gas entering the fuel cell at 1.5 atmospheric pressure, so that the fuel cell can adsorb hydrogen more efficiently, and the utilization efficiency of the hydrogen is increased.
The invention has the advantages that:
(1) after hydrogen flow with pressure in a hydrogen storage tank enters a Venturi tube, the hydrogen flow speed is increased, the pressure is reduced, high-speed hydrogen flow is divided into two parts, one part generates electricity through a gas generator set, the generated electric energy is stored in a storage battery, meanwhile, the high-speed hydrogen flow passes through the gas generator set and then is changed into low-pressure hydrogen flow to enter a fuel cell, and the fuel cell converts the chemical energy of the hydrogen into electric energy to be transmitted to a vehicle transmission system so as to drive a vehicle; the other part of high-speed hydrogen converts the kinetic energy of the hydrogen into first mechanical energy through a power piston and transmits the first mechanical energy to a vehicle transmission system through a transmission assembly, meanwhile, the heating end of the thermal piston is connected with heat generated by a gas generator set for storing electric energy in a storage battery and heat generated by hydrogen absorption of a fuel cell, a cold source at the cooling end of the thermal piston is from the expansion heat absorption of the hydrogen storage tank 1 in the hydrogen desorption process or cold generated in the hydrogen desorption process of metal hydride in the hydrogen storage tank, and the heat energy is converted into second mechanical energy and transmitted to the vehicle transmission system through the transmission assembly; the energy of hydrogen is fully utilized, the working efficiency is improved, and a new power device system is provided for the automobile taking hydrogen as energy;
(2) the diffusion section of the traditional Venturi tube is changed into a straight section, so that high-speed hydrogen with high kinetic energy can be obtained;
(3) the power piston and the thermal piston act together to form a power and thermal double-cylinder hydrogen engine unit together with the first linkage rod, the second linkage rod and the crankshaft flywheel set, and the torque output outwards stably drives a vehicle transmission system to ensure the stable operation of the vehicle;
(4) the gas pressure stabilizing valve keeps the gas entering the fuel cell at 1.5 atmospheric pressure, so that the fuel cell can adsorb hydrogen more efficiently, and the utilization efficiency of the hydrogen is increased.
Drawings
FIG. 1 is a schematic structural view of a hydrogen power generation system according to an embodiment of the present invention;
figure 2 is a schematic diagram of the venturi structure.
Reference numbers in the figures: the device comprises a hydrogen storage tank 1, a Venturi tube 2, an inlet section 21, a contraction section 22, a throat 23, a straight section 24, a gas generator set 3, a wind power blade 31, a wind driven generator 32, a fuel cell 4, an engine set 5, a power piston 51, a thermal piston 52, a first linkage rod 53, a second linkage rod 54, a crankshaft flywheel set 55, a storage battery 6, a pressure stabilizing valve 7, a heat exchanger 8 and a vehicle transmission system 9.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a hydrogen power generation system comprises a hydrogen storage tank 1, a venturi tube 2, a gas generator set 3, a fuel cell 4, an engine set 5, a storage battery 6, a pressure stabilizing valve 7, a heat exchanger 8 and a vehicle transmission system 9;
the hydrogen storage tank 1 is connected with the venturi tube 2, the venturi tube 2 is connected with the gas generator set 3, the gas generator set 3 is respectively connected with the storage battery 6 and the fuel cell 4, and the fuel cell 4 is connected with the vehicle transmission system 9;
the gas generator set 3 includes wind blades 31 and a wind generator 32. The high-speed hydrogen flow drives the wind blade 31 to rotate and causes the wind generator 32 to generate electricity.
The engine set 5 comprises a power piston 51 capable of converting hydrogen kinetic energy into first mechanical energy, a thermal piston 52 capable of converting thermal energy into second mechanical energy, and a transmission assembly, wherein the transmission assembly comprises a first linkage rod 53, a second linkage rod 54 and a crankshaft flywheel set 55, the power piston 51 is in driving connection with the first linkage rod 53, the thermal piston 52 is in driving connection with the second linkage rod 54, the first linkage rod 53 and the second linkage rod 54 are both connected with the crankshaft flywheel set 55, the crankshaft flywheel set 55 is in driving connection with the vehicle transmission system 9, the power piston 51 and the thermal piston 52 act together to form a power and thermal double-cylinder hydrogen engine set together with the first linkage rod 53, the second linkage rod 54 and the crankshaft flywheel set 55, and torque which can be stably output outwards finally drives the vehicle transmission system to ensure the stable running of the vehicle.
The venturi tube 2 is also connected with a power piston 51, and the power piston 51 is connected with the fuel cell 4; the heating end of the thermal piston 52 is connected with the storage battery 6 and the fuel cell 4, and the cooling end of the thermal piston 52 is connected with the hydrogen storage tank 1.
In this embodiment, the hydrogen storage tank 1 is a pure hydrogen storage tank with a certain pressure or an alloy hydrogen storage tank with a certain pressure. The hydrogen storage tank can be a pure hydrogen storage tank which stores high-pressure hydrogen with the pressure of 35MPa-70MPa and can generate high-pressure hydrogen flow; the system can also be an alloy hydrogen storage tank with low pressure of 0-5MPa, and the alloy hydrogen storage tank absorbs heat in the hydrogen discharge process, so that the system provided by the invention can provide cold.
In this embodiment, at least three heat exchangers 8 are included, at least one of which is installed between the hydrogen storage tank 1 and the cooling end of the thermal piston 52, at least one of which is installed between the fuel cell 4 and the heating end of the thermal piston 52, and at least one of which is installed between the battery 6 and the heating end of the thermal piston 52.
After hydrogen flow with pressure in a hydrogen storage tank 1 enters a Venturi tube 2, the hydrogen flow speed is increased, the pressure is reduced, high-speed hydrogen flow is divided into two parts, one part generates electricity through a gas generator set 3, the generated electric energy is stored in a storage battery 6, meanwhile, the high-speed hydrogen flow passes through the gas generator set 3 and then is changed into low-pressure hydrogen flow to enter a fuel cell 4, and the fuel cell 4 converts chemical energy of the hydrogen into electric energy to be transmitted to a vehicle transmission system 9 so as to drive a vehicle; the other part of high-speed hydrogen converts the kinetic energy of the hydrogen into first mechanical energy through the power piston 51, transmits the first mechanical energy to the crankshaft flywheel set 55 through the first linkage rod 53, and transmits the first mechanical energy to the vehicle transmission system 9, meanwhile, the heating end of the thermal piston 52 is connected with the heat generated by the electric energy stored in the storage battery 6 by the gas generator set 3 and the heat generated by the hydrogen absorption of the fuel cell 4, the cold source of the cooling end of the thermal piston 52 is from the expansion heat absorption of the hydrogen storage tank 1 in the hydrogen desorption process or the cold generated in the hydrogen desorption process of the metal hydride in the hydrogen storage tank 1, converts the heat energy into second mechanical energy, transmits the second mechanical energy to the crankshaft flywheel set 55 through the second linkage rod 54, and transmits the; the energy of hydrogen is fully utilized, the working efficiency is improved, and a new power device system is provided for the automobile taking hydrogen as energy.
The working principle of the thermodynamic piston is that power is output by adopting a circulation mode of constant volume, heat absorption expansion and cooling contraction.
Example two:
as shown in fig. 2, the specific structure of the venturi tube 2 in the present embodiment is: the venturi tube 2 comprises an inlet section 21, a convergent section 22, a throat 23 and a flat section 24 connected in sequence.
The diameter of the straight section 24 is the same as that of the throat 23, specifically, the inlet section 21 is a short cylindrical section with a diameter D; the shape of the contraction section 22 is a conical pipe, and the cone angle is about 21 degrees +/-2 degrees; the throat 23 is a short straight pipe section, the diameter of the throat is about 1/3-1/4D, and the length of the throat is equal to the pipe diameter; the diameter of the straight section 24 is equal to the diameter of the circular tube of the throat 23.
The conventional diffusion section of the venturi tube 2 is changed into the straight section 24, and high-speed hydrogen with high kinetic energy can be obtained.
Example three:
as shown in fig. 1, on the basis of the second embodiment, the present embodiment further includes two gas pressure maintaining valves 7, one gas pressure maintaining valve 7 is installed between the wind driven generator 32 and the fuel cell 4, and one gas pressure maintaining valve 7 is installed between the power piston 51 and the fuel cell 4.
Two gas pressure maintenance valves 7 maintain the gas entering the fuel cell 4 at 1.5 atmospheres. So as to more efficiently enable the fuel cell to adsorb hydrogen and increase the utilization efficiency of the hydrogen.
The specific working process of the invention is as follows:
s1, after hydrogen flow with pressure in the hydrogen storage tank 1 enters the improved Venturi tube 2, the hydrogen flow speed is increased and the pressure is reduced;
s2, dividing the hydrogen flow into two parts, wherein one part generates electricity through the wind generating set 3, the generated electric energy is stored in the storage battery 6, meanwhile, the part of the hydrogen flow is changed into low-pressure hydrogen after passing through the gas generating set 3 and flows into the fuel cell 4, and the fuel cell 4 converts the chemical energy of the hydrogen into electric energy to be transmitted to the vehicle transmission system 9 so as to drive the vehicle; the other part converts the kinetic energy of the hydrogen into mechanical energy through the engine unit 5 and transmits the mechanical energy to the vehicle transmission system 9.
In step S2, the engine unit 5 converts the kinetic energy of hydrogen into mechanical energy, and transmits the mechanical energy to the vehicle transmission system 9, which specifically includes:
s21, the heating end of the thermal piston 52 is connected with the heat generated by the gas generator set 3 for storing the electric energy in the storage battery 6 and the heat generated by the hydrogen absorption of the fuel cell 4; a cold source at the cooling end of the thermal piston is from the cold quantity generated after the hydrogen storage tank 1 expands to absorb heat in the hydrogen discharging process or the hydrogen storage alloy discharges and absorbs heat;
s22, connecting the inlet end of the power piston 51 with the improved flow channel branch of the Venturi tube 2, and flowing high-speed hydrogen to push the power piston 51 to move; the air outlet end of the power piston 51 is communicated with the fuel cell 4, and the hydrogen flowing out of the air outlet end enters the fuel cell 4 through the pressure stabilizing valve 7 under the pressure of 1.5 atmospheres.
Wherein, in step S2, power is generated by the gas generator set 3, and the generated electric energy is stored in the storage battery 6, which specifically comprises:
s23: the high-speed hydrogen flow drives the wind blade 31 to rotate and drives the wind driven generator 32 to generate electricity, and the generated electric energy is stored in the storage battery 6, wherein the low-pressure hydrogen flow passing through the wind blade 31 and the wind driven generator 32 passes through the gas pressure stabilizing valve and then is kept at 1.5 atmospheric pressures.
The invention fully utilizes the energy of hydrogen, improves the working efficiency and provides a new power device system for the automobile taking hydrogen as energy.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A hydrogen power generation system is characterized by comprising a hydrogen storage tank, a Venturi tube, a gas generator set, a fuel cell, an engine set and a storage battery; the hydrogen storage tank is connected with the venturi tube, the venturi tube is connected with the gas generator set, the gas generator set is respectively connected with the storage battery and the fuel cell, and the fuel cell is connected with the vehicle transmission system;
the engine set comprises a power piston capable of converting hydrogen kinetic energy into first mechanical energy, a thermal piston capable of converting thermal energy into second mechanical energy and a transmission assembly, wherein the power piston is connected with the transmission assembly, the thermal piston is connected with the transmission assembly, and the transmission assembly is connected with a vehicle transmission system;
the venturi tube is also connected with a power piston, and the power piston is connected with a fuel cell; the heating end of the thermal piston is connected with the storage battery and the fuel cell, and the cooling end of the thermal piston is connected with the hydrogen storage tank.
2. A hydrogen power generation system according to claim 1, characterised in that said hydrogen storage tank is a pure hydrogen storage tank with a certain pressure.
3. A hydrogen power generation system according to claim 1, wherein the venturi comprises an inlet section, a convergent section, a throat and a flat section connected in series.
4. A hydrogen power generation system according to claim 3, wherein the diameter of the inlet section is greater than the diameter of the throat, the convergent section is a tapered tube with a taper angle of 21 ° ± 2 °, the throat has the same diameter as the straight section, and the throat has the same diameter and length.
5. A hydrogen gas power generation system according to claim 1, characterised in that the gas generator set comprises wind blades and wind generators.
6. The hydrogen power generation system of claim 1, wherein the transmission assembly comprises a first linkage rod, a second linkage rod and a crankshaft flywheel set, the power piston is connected with the first linkage rod in a driving manner, the thermal piston is connected with the second linkage rod in a driving manner, the first linkage rod and the second linkage rod are both connected with the crankshaft flywheel set, and the crankshaft flywheel set is connected with the vehicle transmission system in a driving manner.
7. A hydrogen power generation system according to claim 1, further comprising at least three heat exchangers, at least one mounted between the hydrogen storage tank and the cooling end of the thermal piston, at least one mounted between the fuel cell and the heating end of the thermal piston, and at least one mounted between the battery and the heating end of the thermal piston.
8. A hydrogen gas power generation system according to claim 1, further comprising at least two gas pressure maintaining valves, at least one gas pressure maintaining valve being mounted between the gas generator set and the fuel cell, at least one gas pressure maintaining valve being mounted between the power piston and the fuel cell.
9. A hydrogen power generation system according to claim 1, wherein the hydrogen gas pressure entering the fuel cell is 1.5 atmospheres.
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| DE102020214153A1 (en) * | 2020-11-11 | 2022-05-12 | Robert Bosch Gesellschaft mit beschränkter Haftung | Arrangement for supplying pressurized fuel gas to generate additional energy |
| CN113315243B (en) * | 2021-06-04 | 2023-03-21 | 重庆邮电大学 | Flywheel energy storage and hydrogen storage charging and discharging control method for new energy micro-grid |
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