A kind of alcohol hydrogen fuel power system and power generation device

Abstract

In order to overcome the problem of cold start difficulty when using existing methanol as engine fuel, the present invention provides an alcohol hydrogen fuel power system, including an alcohol storage tank, an electric auxiliary module and an engine, wherein the alcohol storage tank is connected to the electric auxiliary module and the fuel feed port of the engine respectively, the electric auxiliary module is used to mix alcohol and water to form an alcohol solution and produce hydrogen for ignition, and the electric auxiliary module leads to a hydrogen flow channel, which is connected to the fuel feed port of the engine. At the same time, the present invention also discloses a power generation device including the above-mentioned alcohol hydrogen fuel power system. The alcohol hydrogen fuel power system provided by the present invention can realize the entire power process by using a single alcohol fuel, and the system has low energy consumption and less emissions such as methanol and formaldehyde.

Description

Technical Field

[0001] The invention belongs to the technical field of internal combustion engines, and in particular relates to an alcohol-hydrogen fuel power system and a power generation device. Background Art

[0002] Internal combustion engine technology faces two major problems: shortage of fuel sources and pollution of the environment by emissions. Methanol has a wide range of sources. It can be prepared not only from traditional fuels such as natural gas, coal, and oil, but also from renewable energy sources, such as using solar energy to convert carbon dioxide and water into methanol, and using biomass energy to synthesize methanol. Therefore, methanol has great advantages in production cost and cleanliness. During the combustion process of methanol, the main products are only water and carbon dioxide, and the products of incomplete combustion are only very small amounts of methanol, formaldehyde, and carbon monoxide, which essentially eliminates the emission of sulfur, nitrogen and other compounds that are extremely harmful to the environment.

[0003] Therefore, methanol has attracted widespread attention due to its wide sources, easy cost control and low emission characteristics when burned in the engine. Using methanol to replace gasoline in internal combustion engines as a power source can improve energy security and reduce fuel costs, and to a certain extent solve the two major problems facing internal combustion engine technology.

[0004] There is a common cold start problem when methanol is burned in a gasoline engine. The latent heat of vaporization of methanol (1109kJ / kg) is much greater than the latent heat of vaporization of gasoline (310kJ / kg). The heat required to vaporize the same mass of methanol is more than three times that of gasoline. The flash point of methanol is 12.2 degrees Celsius, and the flash point of gasoline is -50 to 20 degrees Celsius. When the ambient temperature is low, the cold start of a methanol engine is very difficult. The current cold start solution for pure methanol fuel vehicles (M100) is usually a dual-fuel solution. For example, the pure methanol vehicle promoted by Geely Automobile starts the engine by burning gasoline at low temperatures, and then switches to methanol feed. However, such a solution requires a smaller gasoline storage tank, and the emissions still contain gasoline emissions, which cannot achieve the intention of methanol to completely replace gasoline. At the same time, there is a certain dependence on gasoline, and it cannot achieve complete replacement of gasoline.

[0005] Chinese patent CN104612861B discloses a full-generation combustion engine device using methanol and methanol cracking gas as fuel. Using high-efficiency thermal superconducting technology, the radiant heat energy emitted by the internal combustion engine body and hot exhaust gas, as well as the exhaust gas heat energy discharged by the internal combustion engine, is guided into the alcohol-hydrogen cracking gas device to completely crack methanol into hydrogen-rich gas, which is then mixed with methanol in proportion and burned.

[0006] Chinese patent CN10335277B discloses a hydrogen engine system, a low-carbon engine system that uses methanol cracking to produce hydrogen-rich gas as fuel. The device is equipped with an electric heater with a power of 1-2kW in the alcohol-water storage tank. After methanol enters the cracker, it undergoes catalytic reforming at 180-500°C to obtain hydrogen-rich gas.

[0007] In summary, both examples use high-temperature catalysis to produce hydrogen. If the waste heat of exhaust gas is used, there will be problems such as difficulty in reaction control; the complex system structure will also bring a series of difficulties in control and use; in addition, the exhaust gas of methanol internal combustion engines contains incompletely burned methanol and formaldehyde and other substances produced during the combustion process. Reducing the emission of such substances is also a challenge faced by methanol internal combustion engines in their applications. Summary of the invention

[0008] Aiming at the problems that the existing methanol as engine fuel has difficulty in cold starting and the exhaust gas of methanol internal combustion engines contains methanol and formaldehyde, the present invention provides an alcohol hydrogen fuel power system and a power generation device.

[0009] The technical solution adopted by the present invention to solve the above technical problems is as follows:

[0010] On the one hand, the present invention provides an alcohol hydrogen fuel power system, including an alcohol storage tank, an electric auxiliary module and an engine, wherein the alcohol storage tank is connected to the electric auxiliary module and the fuel feed port of the engine respectively, the electric auxiliary module is used to mix alcohol and water to form an alcohol solution and generate hydrogen for ignition, and the electric auxiliary module leads to a hydrogen flow channel, which is connected to the fuel feed port of the engine.

[0011] Optionally, the alcohol storage tank is a methanol storage tank.

[0012] Optionally, the electric-assisted module includes an electric-assisted raw material storage tank and an electric processing unit, the alcohol storage tank is connected to the electric-assisted raw material storage tank, the electric-assisted raw material storage tank is connected to a water inlet channel, the electric-assisted raw material storage tank is used to mix alcohol and water to form an alcohol solution, the alcohol solution in the electric-assisted raw material storage tank is led to the electric processing unit, the electric processing unit is used to process the alcohol solution, and the electric processing unit is provided with a carbon dioxide exhaust outlet and the hydrogen flow channel.

[0013] Optionally, the electrical processing unit is selected from a methanol reforming catalyst electric heater, and the methanol reforming catalyst electric heater comprises a heating wire, and the heating wire is coated with a methanol steam reforming catalyst.

[0014] Optionally, the electrical processing unit is selected from an electrolytic cell, and in the electrical auxiliary raw material storage tank, the volume ratio of alcohol to water in the alcohol solution is maintained at 18 to 22:1.

[0015] Optionally, the electric-assisted raw material storage tank and the electric processing unit are connected to each other by setting an electric-assisted raw material flow channel.

[0016] Optionally, the electrical auxiliary module also includes a power supply, and the power supply is electrically connected to the electrical processing unit.

[0017] Optionally, the exhaust pipe of the engine is connected to the water inlet channel, and the water inlet channel is used to collect moisture generated in the exhaust gas from the exhaust pipe. The exhaust pipe is composed of multiple sections of pipes that are detachably connected, and a cyclone is provided in the detachable part thereof. The cyclone is used to enhance the condensation separation of moisture and gas.

[0018] Optionally, the exhaust pipe of the engine is connected to the water inlet channel, the water inlet channel is used to collect moisture generated in the exhaust gas from the exhaust pipe, and a Nafion membrane is provided in the exhaust pipe, and the Nafion membrane is used to enhance the separation of moisture and gas.

[0019] Optionally, the alcohol storage tank is provided with a first alcohol flow channel and a second alcohol flow channel, the first alcohol flow channel is connected to the electric auxiliary raw material storage tank, and the second alcohol flow channel is connected to the fuel feed port of the engine.

[0020] Optionally, the hydrogen flow channel includes a first gas flow channel, a pressure balance tank and a second gas flow channel, one end of the first gas flow channel is connected to the electric auxiliary module, the other end of the first gas flow channel is connected to the pressure balance tank, one end of the second gas flow channel is connected to the pressure balance tank, and the other end of the second gas flow channel is connected to the fuel feed port of the engine.

[0021] Optionally, the alcohol-hydrogen fuel power system also includes a control unit, a first flow control mechanism is provided on the second gas flow channel, a second flow control mechanism is provided on the second alcohol flow channel, a third flow control mechanism is provided on the first alcohol flow channel, and a fourth flow control mechanism is provided on the water inlet flow channel, and the control unit is used to control the first flow control mechanism, the second flow control mechanism, the third flow control mechanism and the fourth flow control mechanism.

[0022] On the other hand, the present invention provides a power generation device, comprising the alcohol-hydrogen fuel power system as described above.

[0023] According to the alcohol hydrogen fuel power system provided by the present invention, the alcohol stored in the alcohol storage tank is respectively introduced into the electric auxiliary module and used as part of the fuel of the engine. In the electric auxiliary module, alcohol and water are mixed to form an alcohol solution, and then hydrogen is prepared by the method of electrically treating the alcohol solution. The hydrogen obtained by the electric treatment is mixed with alcohol and then enters the engine to burn and do work, solving the problem of the difficulty of cold start of alcohol substances. The whole power process can be realized by using a single alcohol fuel, and no additional auxiliary fuel is required. On the other hand, the alcohol hydrogen fuel power system adopts the method of electric treatment to replace the existing heating catalytic cracking method to prepare hydrogen, and there is no need to set the equipment such as cracking catalyst and tail gas heat exchange. Since the voltage required for the electric treatment of alcohol substances is low, the energy consumed is lower than that of electrolyzing water, which can reduce the energy consumption of the system cold start. In addition, since the exhaust gas discharged by the engine is recycled, the water-soluble methanol, formaldehyde and other substances in some emissions can be recycled into the electric auxiliary raw material storage tank to reduce pollutant emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a system schematic diagram of the alcohol hydrogen fuel power system provided by the present invention.

[0025] The reference numerals in the drawings of the specification are as follows:

[0026] 1. Alcohol storage tank; 2. Electric auxiliary module; 21. Electric auxiliary raw material storage tank; 22. Electric processing unit; 221. Carbon dioxide flow channel; 23. Power supply; 3. Engine; 4. First alcohol flow channel; 5. Second alcohol flow channel; 6. Hydrogen flow channel; 61. First gas flow channel; 62. Pressure balance tank; 63. Second gas flow channel; 7. Exhaust pipe; 8. Water inlet flow channel; 9. Electric auxiliary raw material flow channel. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "flow channel" should be understood in a broad sense. For example, the "flow channel" can refer to an independent pipeline, a connecting joint between two adjacent structures, or a connecting hole built into a component. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The "flow channel" is used for conducting the flow of gas or liquid. In the present invention, the "flow channel" can achieve flow by relying on the pressure difference at both ends. In some embodiments, if the pressure difference at both ends of the "flow channel" does not meet the flow requirements, it can also be pressurized by setting a pressure pump.

[0030] An embodiment of the present invention provides an alcohol-hydrogen fuel power system, comprising an alcohol storage tank 1, an electric auxiliary module 2 and an engine 3, wherein the alcohol storage tank 1 is connected to the fuel feed ports of the electric auxiliary module 2 and the engine 3 respectively, the electric auxiliary module 2 is used to mix alcohol and water to form an alcohol solution and generate hydrogen for ignition, and the electric auxiliary module 2 leads to a hydrogen flow channel 6, which is connected to the fuel feed port of the engine 3.

[0031] The alcohol stored in the alcohol storage tank 1 is respectively introduced into the electric auxiliary module 2 and used as part of the fuel of the engine 3. In the electric auxiliary module 2, alcohol and water are mixed to form an alcohol solution, and then hydrogen is prepared by electrically treating the alcohol solution. The hydrogen obtained by electrical processing is mixed with alcohol and then enters the engine 3 for combustion and work, solving the problem of alcohol substances being difficult to start cold in the engine. A single alcohol fuel can be used to achieve the entire power process without the need to add other auxiliary fuels. On the other hand, the alcohol hydrogen fuel power system uses an electrical treatment method to replace the existing heating catalytic cracking method to prepare hydrogen, without the need to set up cracking catalysts and tail gas heat exchange equipment, because the voltage required for the electrical treatment of alcohol substances is low, the energy consumed is lower than that of electrolysis of water and heating catalytic cracking, which can reduce the energy consumption of the system cold start. In addition, since the exhaust gas discharged by the engine is recycled, the water-soluble methanol, formaldehyde and other substances in some emissions can be recycled into the electric auxiliary raw material storage tank to reduce pollutant emissions.

[0032] In one embodiment, the alcohol storage tank 1 is a methanol storage tank.

[0033] In one embodiment, the electric-assisted module 2 includes an electric-assisted raw material storage tank 21 and an electric processing unit 22, the alcohol storage tank 1 is connected to the electric-assisted raw material storage tank 21, the electric-assisted raw material storage tank 21 is connected to a water inlet channel 8, the electric-assisted raw material storage tank 21 is used to mix alcohol and water to form an alcohol solution, the alcohol solution in the electric-assisted raw material storage tank 21 is led to the electric processing unit 22, the electric processing unit 22 is used to perform electrical processing on the alcohol solution to generate hydrogen, and the electric processing unit 22 is provided with a carbon dioxide exhaust outlet and the hydrogen flow channel 6.

[0034] The electric auxiliary raw material storage tank 21 plays the role of regulating the material ratio of the alcohol solution and continuously and stably supplying the alcohol solution, and can continuously provide the alcohol solution to be processed by electrical processing to the electric processing unit 22.

[0035] In different embodiments, the electrical processing unit 22 may be selected from a methanol reforming catalyst electric heater or an electrolyzer.

[0036] In one embodiment, the electrical processing unit 22 is selected from a methanol reforming catalyst electric heater, which includes a heating wire coated with a methanol steam reforming catalyst. The methanol steam reforming catalyst on the heating wire undergoes a catalytic reaction under electric heating to generate hydrogen.

[0037] The heating wire is spiral-shaped, and the coating process of the methanol steam reforming catalyst on the heating wire is: the heating wire is repeatedly immersed in the catalyst slurry to form a catalyst coating.

[0038] In one embodiment, the electrical processing unit 22 is selected from an electrolytic cell.

[0039] The principle of methanol solution electrolysis is as follows:

[0040] Anode: CH3OH+H2O→6H++CO2+6e -

[0041] Cathode: 6H + +6e - →3H2

[0042] Overall reaction: CH3OH+H2O→3H2+CO2

[0043] The standard potential of methanol electrolysis is 0.02V, which is much lower than the theoretical voltage of water electrolysis of 1.23V. Therefore, electrolysis of methanol-water solution will theoretically consume less energy. The electrolysis products are hydrogen (cathode) and carbon dioxide (anode), which are pollution-free to human body and environment.

[0044] In this embodiment, in the electric auxiliary raw material storage tank 21, the volume ratio of alcohol to water in the alcohol solution is maintained at 18 to 22:1. Preferably, the volume ratio of alcohol to water in the alcohol solution is 19.24:1. If the alcohol content in the alcohol solution is too large, the ion conductivity of the alcohol solution is low and the electrolysis efficiency is low; if the alcohol content in the alcohol solution is too small, the electrolysis voltage is high, the energy consumption is large, and it is not conducive to improving the electrolysis efficiency.

[0045] In other embodiments, the electrical processing unit 22 can be selected from various existing electrolysis equipment. In a preferred embodiment, a polymer electrolyte membrane Nafion is provided in the electrical processing unit 22 .

[0046] In one embodiment, the electrical processing unit 22 is provided with a carbon dioxide flow channel 221 for discharging carbon dioxide.

[0047] In one embodiment, the mass ratio limit of alcohol and water in the electric-assisted raw material storage tank 21 can be achieved by controlling the alcohol feed amount and the water feed amount in the electric-assisted raw material storage tank 21. Specifically, a flow metering and control device can be set at the alcohol feed position and the water inlet channel 8, and precise control can be performed through a controller to ensure that the concentration of alcohol in the alcohol solution is within a controllable range.

[0048] It should be noted that the above-mentioned electric-assisted raw material storage tank 21 and electric processing unit 22 are only some preferred embodiments of the present invention. In other embodiments, the electric-assisted module 2 can also be an integral structure, that is, the mixing operation of alcohol and water and the electric processing operation are carried out in the same device. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0049] In one embodiment, the electric-auxiliary raw material storage tank 21 and the electric processing unit 22 are connected to each other by providing an electric-auxiliary raw material flow channel 9 .

[0050] In one embodiment, the electric auxiliary module 2 further includes a power supply 23 , and the power supply 23 is electrically connected to the electric processing unit 22 .

[0051] The power source 23 is selected from a DC power source, which is used to provide the voltage required for the electrochemical reaction in the electrical processing unit 22. In this embodiment, the power source 23 is a battery on the vehicle. In other embodiments, the power source 23 can also be selected as other power source structures, such as a battery of a hybrid vehicle, a solar power generation system, etc.

[0052] In one embodiment, the exhaust pipe 7 of the engine 3 is connected to the water inlet channel 8, and the water inlet channel 8 is used to collect condensed water generated by condensation of exhaust gas from the exhaust pipe 7. The water inlet channel 8 is used to collect moisture separated from the exhaust gas from the exhaust pipe 7. The exhaust pipe 7 is composed of multiple sections of detachably connected pipes, and a cyclone is provided in the detachable part thereof for enhancing the condensation separation of moisture and gas. The cyclone is a common gas-liquid separation cyclone.

[0053] In one embodiment, the exhaust pipe 7 of the engine 3 is connected to the water inlet channel 8, and the water inlet channel 8 is used to collect condensed water generated by condensation of exhaust gas from the exhaust pipe 7. The water inlet channel 8 is used to collect moisture generated in the exhaust gas from the exhaust pipe 7. A Nafion membrane is arranged in the exhaust pipe 7, and the Nafion membrane is used to enhance the separation of moisture and gas.

[0054] Methanol (CH3OH) and water (H2O) are both compounds containing hydrogen atoms, and can be regarded as hydrogen carriers from the perspective of conservation of matter. Theoretically, when 1 mol of methanol molecules and 1 mol of water molecules react completely, the hydrogen atoms will be released in the form of hydrogen, generating 3 mol of hydrogen molecules. Hydrogen and methanol will be reoxidized to generate water during the combustion process. Therefore, in the process of using methanol and aqueous solution as raw materials, adding a step of recovering water has environmental and economic significance. While realizing resource recycling, it can also reduce the emission of methanol and formaldehyde and other substances in the tail gas. At the same time, by collecting condensed water from the exhaust pipe 7, the system can be further simplified, and there is no need to set up a water tank or other water supply equipment to provide water. On the other hand, the condensed water recovered from the exhaust pipe 7 contains methanol, formaldehyde and other substances in the tail gas. When a small amount of methanol, formaldehyde and other substances in the tail gas are recovered, the electroprocessing performance of the methanol-water solution will not be affected, and the atomic economy is further improved.

[0055] In one embodiment, the water vapor in the exhaust pipe 7 is condensed by natural cooling and then collected by the water inlet channel 8; in another embodiment, a condenser is provided on the exhaust pipe 7 to promote the condensation of water vapor in the exhaust pipe 7 by heat exchange, and then collected by the water inlet channel 8.

[0056] In one embodiment, the alcohol storage tank 1 is provided with a first alcohol flow channel 4 and a second alcohol flow channel 5 , wherein the first alcohol flow channel 4 is connected to the electric auxiliary raw material storage tank 21 , and the second alcohol flow channel 5 is connected to the fuel feed port of the engine 3 .

[0057] In one embodiment, the hydrogen flow channel 6 includes a first gas flow channel 61, a pressure balance tank 62 and a second gas flow channel 63, one end of the first gas flow channel 61 is connected to the electric auxiliary module 2, the other end of the first gas flow channel 61 is connected to the pressure balance tank 62, one end of the second gas flow channel 63 is connected to the pressure balance tank 62, and the other end of the second gas flow channel 63 is connected to the fuel feed port of the engine 3.

[0058] The pressure balance tank 62 is used to temporarily store hydrogen. When the engine 3 is in a non-starting condition, part of the hydrogen can be pre-processed by the electric auxiliary module 2 and pre-stored in the pressure balance tank 62 to ensure the stability of the hydrogen supply to the engine 3.

[0059] In one embodiment, the alcohol-hydrogen fuel power system also includes a control unit, a first flow control mechanism is provided on the second gas flow channel 63, a second flow control mechanism is provided on the second alcohol flow channel 5, a third flow control mechanism is provided on the first alcohol flow channel 4, and a fourth flow control mechanism is provided on the water inlet flow channel 8, and the control unit is used to control the first flow control mechanism, the second flow control mechanism, the third flow control mechanism and the fourth flow control mechanism.

[0060] The mixing ratio of alcohol and hydrogen is controlled by the first flow control mechanism and the second flow control mechanism. In a preferred embodiment, the volume ratio of the alcohol and hydrogen is 94-100:0-6.

[0061] It should be noted that at this time, alcohol enters the engine 3 in a vaporized manner. Since the use of alcohol as fuel mainly causes the problem of cold start difficulty, the introduction of hydrogen is mainly in the cold start stage, and hydrogen may not be introduced in the subsequent continuous operation stage.

[0062] The third flow control mechanism and the fourth flow control mechanism are used to control the feed ratio of alcohol and water in the electric auxiliary raw material storage tank 21 so as to maintain an optimal concentration ratio. In one embodiment, the first flow control mechanism, the second flow control mechanism, the third flow control mechanism and the fourth flow control mechanism are selected from electronically controlled valves with metering functions.

[0063] Corresponding to the above alcohol-hydrogen fuel power system, another embodiment of the present invention provides an alcohol-hydrogen fuel supply method, comprising the following operating steps:

[0064] Drawing out part of the alcohol in the alcohol storage tank 1 and mixing it with water to form an alcohol solution;

[0065] The alcohol solution is subjected to electroprocessing to prepare hydrogen;

[0066] The hydrogen gas is mixed with the alcohol drawn out from the alcohol storage tank 1 and introduced as a mixed fuel into the fuel feed port of the engine 3 for ignition to produce work.

[0067] In one embodiment, condensed water in the exhaust gas of the engine 3 is collected and used as water in the alcohol solution, thereby avoiding the need for an additional water supply device, simplifying the equipment, and realizing resource recycling. At the same time, methanol and formaldehyde in the emissions are reduced, thereby reducing pollution to the environment.

[0068] The following is a further description of the workflow of the above-mentioned alcohol-hydrogen fuel power system based on the alcohol-hydrogen fuel supply method provided in this embodiment:

[0069] The methanol extracted from the alcohol storage tank 1 is transported to the electric auxiliary raw material storage tank 21 through the first alcohol flow channel 4. Some water is pre-stored in the electric auxiliary raw material storage tank 21. The water in the electric auxiliary raw material storage tank 21 is mixed with methanol to obtain a methanol solution. The methanol solution in the electric auxiliary raw material storage tank 21 is extracted and transported to the electric processing unit 22. The power supply 23 is started to supply power to the electric processing unit 22. During the electrolysis of the methanol solution, the carbon dioxide generated at the anode of the electric processing unit 22 is discharged through the carbon dioxide flow channel 221, and the hydrogen generated at the cathode is transported to the pressure balance tank 62 for storage through the first gas flow channel 61. The hydrogen in the pressure balance tank 62 is extracted through the second gas flow channel 63, and the methanol in the alcohol storage tank 1 is extracted through the second alcohol flow channel 5. The hydrogen and methanol are mixed and introduced into the fuel feed port of the engine 3 for combustion and work. This system is mainly aimed at the cold start problem, so the hydrogen in the storage tank will only play a role when the engine 3 is started and stopped. Therefore, the electric processing unit 22 does not necessarily operate continuously, but only operates when the amount of hydrogen in the pressure balance tank 62 is less than half of the tank capacity. The exhaust gas generated by the engine 3 is discharged through the exhaust pipe 7, and the condensed water in the exhaust pipe 7 is collected through the water inlet flow channel 8 and returned to the electric auxiliary raw material storage tank 21 for reuse.

[0070] Another embodiment of the present invention provides a power generation device, comprising the alcohol-hydrogen fuel power system as described above.

[0071] In one embodiment, the power generation device is used to power a 5G base station with a power output of 10kW. The specific operation mode is to use 4 parallel 3kW output parallel alcohol hydrogen fuel power systems and connect a buffer battery. When working, the power system drives the motor to charge the buffer battery and output it at a stable voltage. If the load required is small, the 4 parallel alcohol hydrogen fuel power systems are switched to a three-on and one-standby state. Such a design can flexibly adjust the power output to meet the fluctuating power needs of 5G.

[0072] In another embodiment, the power generation device is used as a range extender for a battery vehicle. The specific operation mode is that an alcohol hydrogen fuel power system is used to drive a generator to generate electricity, and the generator is connected to the battery of the electric vehicle and outputs a regulated voltage. Regardless of whether the vehicle is in operation or non-operation, the power generation device can charge the battery of the electric vehicle and increase the range of the electric vehicle. In addition, based on the power generation device, since it can generate electricity using liquid as a raw material and continuously charge the electric vehicle, the electric vehicle can reduce the use of battery capacity, thereby reducing the weight of the battery carried by the vehicle.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An alcohol hydrogen fuel power system, characterized in that: The invention comprises an alcohol storage tank, an electric auxiliary module and an engine, wherein the alcohol storage tank is connected to the electric auxiliary module and the fuel feed port of the engine respectively, the electric auxiliary module is used to mix alcohol and water to form an alcohol solution and generate hydrogen for ignition, the electric auxiliary module leads out a hydrogen flow channel, and the hydrogen flow channel is connected to the fuel feed port of the engine; the electric auxiliary module comprises an electric auxiliary raw material storage tank and an electric processing unit, the alcohol storage tank is connected to the electric auxiliary raw material storage tank, the electric auxiliary raw material storage tank is connected to a water inlet flow channel, the electric auxiliary raw material storage tank is used to mix alcohol and water to form an alcohol solution, the alcohol solution of the electric auxiliary raw material storage tank is led to the electric processing unit, the electric processing unit is used to process the alcohol solution to generate hydrogen, and the electric processing unit is provided with a carbon dioxide discharge port and the hydrogen flow channel; the electric processing unit is selected from an electrolyzer, and in the electric auxiliary raw material storage tank, the volume ratio of alcohol to water in the alcohol solution is maintained at 18 to 22: 1; The exhaust pipe of the engine is connected to the water inlet channel, and the water inlet channel is used to collect moisture generated in the exhaust gas from the exhaust pipe.

2. The alcohol-hydrogen fuel power system according to claim 1, characterized in that: The alcohol storage tank is a methanol storage tank.

3. The alcohol hydrogen fuel power system according to claim 1, characterized in that: The electric auxiliary raw material storage tank and the electric processing unit are connected to each other by setting an electric auxiliary raw material flow channel.

4. The alcohol-hydrogen fuel power system according to claim 1, characterized in that: The electric auxiliary module also includes a power supply, and the power supply is electrically connected to the electric processing unit.

5. The alcohol hydrogen fuel power system according to claim 1, characterized in that: The exhaust pipe is composed of multiple sections of pipes that are detachably connected, and a cyclone is arranged in the detachable part thereof. The cyclone is used to enhance the condensation separation of water and gas.

6. The alcohol-hydrogen fuel power system according to claim 1, characterized in that: The exhaust pipe is provided with a Nafion membrane, and the Nafion membrane is used to enhance the separation of water and gas.

7. The alcohol hydrogen fuel power system according to claim 1, characterized in that: The alcohol storage tank is provided with a first alcohol flow channel and a second alcohol flow channel, the first alcohol flow channel is connected to the electric auxiliary raw material storage tank, and the second alcohol flow channel is connected to the fuel feed port of the engine.

8. The alcohol-hydrogen fuel power system according to claim 7, characterized in that: The hydrogen flow channel includes a first gas flow channel, a pressure balance tank and a second gas flow channel, one end of the first gas flow channel is connected to the electric auxiliary module, the other end of the first gas flow channel is connected to the pressure balance tank, one end of the second gas flow channel is connected to the pressure balance tank, and the other end of the second gas flow channel is connected to the fuel feed port of the engine.

9. The alcohol-hydrogen fuel power system according to claim 8, characterized in that: The alcohol-hydrogen fuel power system also includes a control unit. A first flow control mechanism is provided on the second gas flow channel, a second flow control mechanism is provided on the second alcohol flow channel, a third flow control mechanism is provided on the first alcohol flow channel, and a fourth flow control mechanism is provided on the water inlet flow channel. The control unit is used to control the first flow control mechanism, the second flow control mechanism, the third flow control mechanism and the fourth flow control mechanism.

10. A power generation device, characterized in that: It comprises the alcohol hydrogen fuel power system as described in any one of claims 1 to 9.

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