WO2023241421A1 - Alcohol fuel cracking hydrogen production apparatus and system - Google Patents

Abstract

The present invention sets forth an alcohol fuel cracking hydrogen production apparatus and a system, wherein the alcohol fuel cracking hydrogen production apparatus comprises: successively securely connected from left to right, an exhaust inlet unit, an alcohol fuel cracking hydrogen production unit and an exhaust outlet unit; on the whole, the alcohol fuel cracking hydrogen production unit has a hollow cylindrical structure, and comprises a nickel-based catalyst microchannel and a copper-based catalyst microchannel; in a cross-section perpendicular to the central axis of the alcohol fuel cracking hydrogen production unit, the nickel-based catalyst microchannel and/or the copper-based catalyst microchannel form a non-equidistant circular distribution. The apparatus, system and control method provided in the present invention can solve the problem of single-catalyst-structure alcohol fuel cracking hydrogen production technology being unable to fully utilize the high-temperature exhaust of an engine, and also of an adverse effect on the service life of the catalyst.

Description

An alcohol fuel cracking hydrogen production device and system

Related applications

This application claims priority to the Chinese invention patent application: 202210672951.8, titled "An alcohol fuel cracking hydrogen production device and system" submitted on June 14, 2022.

Technical field

The invention belongs to the technical field of alcohol fuel cracking and hydrogen production, and specifically relates to a non-uniform micro-channel alcohol fuel cracking hydrogen production device and system.

Background technique

The 21st century is a hydrogen energy society. How to produce hydrogen efficiently and at low cost has become an urgent problem that needs to be solved. At present, there are many ways to produce hydrogen, including traditional fossil fuel hydrogen production, natural gas hydrogen production, coal hydrogen production, water electrolysis hydrogen production, and renewable energy (wind and solar water) water electrolysis hydrogen production. Each of these hydrogen production methods has advantages and disadvantages. Hydrogen production from fossil fuels requires large-scale production, requires high investment costs, and is also highly polluting and energy-intensive. The cost of producing hydrogen from natural gas is also high. The main component of natural gas is methane, and the chemical structure of methane molecules is stable. Additional energy is required to break the methane molecular structure. Although catalysts can be used to reduce the temperature required for cracking, ultra-high temperature cracking has an impact on the life of the catalyst. Very big. Coal-to-hydrogen production is greatly affected by international coal prices, and has higher requirements for coal composition. The sulfur content in coal will poison the catalyst, and the coal needs to be desulfurized. Moreover, coal-to-hydrogen production is a large-scale device with high investment costs. It is also not conducive to mobile hydrogen production. The cost of electrolyzing water to produce hydrogen is high, and high-grade electric energy can be directly used in other industries that require electric energy. For example, using industrial electricity to electrolyze water to produce hydrogen is very uneconomical in terms of cost and economic benefits. Using renewable energy to electrolyze water to produce hydrogen can reduce the cost of hydrogen production, but due to the influence of various weather environments, hydrogen production fluctuates intermittently; and large-scale renewable energy hydrogen production requires space, which is not conducive to mobile hydrogen production.

Alcohol fuel hydrogen production can use skid-mounted equipment to produce hydrogen, which is very flexible and conducive to mobile hydrogen production. It can also be coupled with other high-temperature heat sources to provide energy for the alcohol fuel hydrogen production catalyst, thereby recycling high-temperature heat sources and improving system efficiency. and economical. The engine outputs useful work to the outside through in-cylinder combustion and thermal power conversion processes. However, according to the current engine thermal efficiency level, under most working conditions, 30% of the engine's heat is carried by the high-temperature exhaust and is directly released into the surrounding environment, causing a waste of energy. In addition, when the engine is running under heavy load conditions, the high-temperature exhaust gas carries more heat, even exceeding 50% of the total energy. In other words, the amount of fuel released More than half of the energy is taken away by high-temperature exhaust, resulting in low engine thermal efficiency and economy.

Therefore, recovery and utilization of high-temperature exhaust energy is one of the effective ways to improve fuel energy utilization and improve engine thermal efficiency. In order to make full use of the high-temperature exhaust gas from the engine, a waste heat recovery device is used to recover the high-temperature exhaust gas. Among them, using an alcohol fuel cracking hydrogen production device to recover high-temperature exhaust energy is a promising way. However, the traditional single catalyst structure is selective for carbon-hydrogen bonds or carbon-carbon bonds and cannot fully crack alcohol fuels, resulting in low cracking efficiency and even affecting the catalyst carrier, resulting in a decrease in the service life of the catalyst.

Contents of the invention

The invention provides an alcohol fuel cracking hydrogen production device, which includes an exhaust inlet unit, an alcohol fuel cracking hydrogen production unit and an exhaust outlet unit that are fixedly connected in sequence. The exhaust inlet unit includes: an exhaust inlet, an exhaust The inlet end fixed part and the exhaust inlet temperature sensor; the alcohol fuel cracking hydrogen production unit includes: an evaporator, a nickel-based catalyst vapor inlet, a nickel-based catalyst temperature sensor, a nickel-based catalyst microchannel, a nickel-based catalyst and a copper-based catalyst interface, copper-based catalyst microchannel, copper-based catalyst temperature sensor, copper-based catalyst cracked gas outlet, cracked gas solenoid valve, copper-based catalyst substrate, nickel-based catalyst substrate and alcohol vapor outlet; the exhaust outlet unit includes: exhaust The gas outlet, the exhaust outlet end fixed part and the exhaust outlet temperature sensor; the alcohol fuel cracking hydrogen production unit has a hollow cylinder structure as a whole, and the nickel-based catalyst microchannel is arranged inside the nickel-based catalyst substrate, The nickel-based catalyst substrate provides support for the nickel-based catalyst microchannel; the copper-based catalyst microchannel is arranged inside the copper-based catalyst substrate, and the copper-based catalyst substrate provides support for the copper-based catalyst microchannel ; The nickel-based catalyst microchannel and the copper-based catalyst microchannel serve as circulation channels for alcohol fuel in the alcohol fuel cracking hydrogen production unit; In cross-section, the nickel-based catalyst microchannels and/or the copper-based catalyst microchannels are distributed in a non-equidistant circular shape.

Optionally, the copper-based catalyst substrate is connected to the exhaust inlet unit, and the nickel-based catalyst substrate is connected to the exhaust outlet unit; the nickel-based catalyst substrate passes through the nickel-based catalyst and the copper-based catalyst The interface is connected to the copper-based catalyst substrate.

Optionally, the exhaust inlet end fixing part and/or the exhaust outlet end fixing part are fixed on the engine high-temperature exhaust pipe through bolts; the engine high-temperature exhaust enters through the exhaust inlet, and is the nickel The base catalyst substrate, the copper-based catalyst substrate and the evaporator provide a high-temperature heat source, which is discharged to downstream components through the exhaust outlet.

Optionally, the evaporator includes an evaporator inlet, an evaporator outlet and an evaporator communication tube; the evaporator is connected to the nickel-based catalyst substrate through the alcohol vapor outlet and the nickel-based catalyst vapor inlet in turn. Then; alcohol fuel enters the evaporator through the evaporator inlet, forms alcohol vapor in the evaporator, and the alcohol vapor flows out of the evaporator through the evaporator outlet; and passes through the evaporator in turn The alcohol vapor outlet and the nickel-based catalyst vapor inlet enter the nickel-based catalyst microchannel.

Optionally, the copper-based catalyst substrate is connected to the cracked gas solenoid valve through the copper-based catalyst cracked gas outlet; after the alcohol fuel passes through the nickel-based catalyst substrate and the copper-based catalyst substrate, the cracked gas formed The gas flows out downstream through the cracked gas outlet of the copper-based catalyst and the cracked gas solenoid valve in sequence.

Optionally, the nickel-based catalyst temperature sensors are distributed in the nickel-based catalyst substrate and used to monitor the temperature of the nickel-based catalyst substrate in real time; the copper-based catalyst temperature sensors are distributed in the copper-based catalyst inside the matrix and used to monitor the temperature of the copper-based catalyst matrix in real time.

The present invention also provides an alcohol fuel cracking hydrogen production system. The technical solution includes, in addition to the aforementioned alcohol fuel cracking hydrogen production device, an engine, an electronic control unit, a fuel supply unit and a cracked gas storage unit; wherein, The electronic control unit is used to receive engine speed and engine load; the fuel supply unit, the cracked gas storage unit, the exhaust inlet temperature sensor in the alcohol fuel cracking hydrogen production device, the exhaust outlet temperature sensor, nickel The base catalyst temperature sensor, the copper base catalyst temperature sensor and the cracked gas solenoid valve are respectively connected to the electronic control unit in communication.

Optionally, the fuel supply unit includes a liquid level sensor, a fuel filling port and a pressure relief valve, a fuel drain valve, an alcohol fuel tank, one or more fuel pump filters, one or more fuel pumps, and one or multiple alcohol fuel solenoid valves and one or more flow meters; wherein: the liquid level sensor is installed at the top of the alcohol storage fuel tank, and the oil drain valve is installed at the bottom of the alcohol storage fuel tank; The one or more fuel pump filters are distributed at the bottom of the alcohol storage fuel tank, and are respectively connected to the inlet of the one or more fuel pumps through pipes, and the outlet of each fuel pump is connected to the inlet through pipes. The inlet of the one or more alcohol fuel solenoid valves is connected, and the outlet of the one or more alcohol fuel solenoid valves is connected to the evaporator inlet of the evaporator through a pipeline, and the flow of the alcohol fuel in the pipeline is controlled in real time. The liquid level sensor, the one or more fuel pumps and the one or more alcohol fuel solenoid valves are respectively communicatively connected with the electronic control unit.

Optionally, the cracked gas storage unit includes a cracked gas storage main solenoid valve, n cracked gas storages, n cracked gas storage outlet valves and n-1 cracked gas storage branch solenoid valves, n is an integer greater than or equal to 2. ; The outlet of the cracked gas solenoid valve is connected to the inlet of the cracked gas storage main solenoid valve through a pipeline, and the outlet of the cracked gas storage main solenoid valve is connected to the inlet of the first of the n cracked gas storage devices through a pipeline ; The n-th cracked gas storage and the n-1 cracked gas storage are respectively connected through pipelines, and the n-1 cracked gas storage Separate solenoid valves are respectively arranged on the pipelines between the n-th cracked gas storage and the n-1th cracked gas storage; the outlets of the n cracked gas storages are respectively connected to the outlets of the n cracked gas storage through pipelines. The inlet connection of the valve, the outlets of the n cracked gas storage outlet valves are respectively connected to pipelines, and then the cracked gas is released downstream; the cracked gas solenoid valve, the cracked gas storage master solenoid valve, the n cracked gas The storage outlet valve and the n-1 cracked gas storage solenoid valves are respectively connected in communication with the electronic control unit.

Optionally, the one or more fuel pump filters include a first fuel pump filter, a second fuel pump filter and a third fuel pump filter; the one or more fuel pumps include a first fuel pump, a second fuel pump and a third fuel pump; the one or more alcohol fuel solenoid valves include a first alcohol fuel solenoid valve, a second alcohol fuel solenoid valve and a third alcohol fuel solenoid valve.

Optionally, the n cracked gas storages include low-pressure cracked gas storage, medium-pressure cracked gas storage and high-pressure cracked gas storage; the n cracked gas storage outlet valves include low-pressure cracked gas storage outlet valves, medium-pressure cracked gas storage outlet valves and high-pressure cracked gas storage outlets. Cracked gas storage outlet valve; n-1 cracked gas storage solenoid valves include medium pressure cracked gas storage solenoid valves and high pressure cracked gas storage solenoid valves.

The beneficial effects of the present invention are as follows:

1. The double-layer catalyst structure is adopted to fully crack the alcohol fuel, promote the cracking of the alcohol fuel, and produce hydrogen. At the same time, it can reduce the carbon deposition on the catalyst and extend the service life of the catalyst.

2. The catalytic microchannels are non-uniformly distributed in the device, forming a shape of dense distribution in the center and sparse distribution in the circumference, which fully absorbs the high-temperature exhaust heat of the engine and improves the catalytic efficiency.

3. By setting up an electronic control unit, the engine operating status can be dynamically judged, and dynamic control can be achieved based on the judgment results, thereby achieving stepwise utilization of engine exhaust heat.

Description of the drawings

Figure 1 is a schematic diagram of an alcohol fuel cracking hydrogen production device and system in an embodiment of the present invention.

Figure 2 is a schematic end view of a nickel-based catalyst substrate in an embodiment of the present invention.

Figure 3 is a schematic top view of the three-dimensional structure of the nickel-based catalyst substrate in the embodiment of the present invention.

Figure 4 is a schematic bottom view of the three-dimensional structure of the nickel-based catalyst substrate in the embodiment of the present invention.

Figure 5 is a schematic diagram of the evaporator in the embodiment of the present invention.

Figure 6 is a schematic diagram of low-load hydrogen production control in the embodiment of the present invention.

Figure 7 is a schematic diagram of the three-dimensional structure of low-load hydrogen production in an embodiment of the present invention.

Figure 8 is a schematic diagram of medium-load hydrogen production control in the embodiment of the present invention.

Figure 9 is a schematic three-dimensional structural diagram of medium-load hydrogen production in an embodiment of the present invention.

Figure 10 is a schematic diagram of large-load hydrogen production control in the embodiment of the present invention.

Figure 11 is a schematic diagram of the three-dimensional structure of large-load hydrogen production in an embodiment of the present invention.

Detailed ways

In order to enable those skilled in the art to better understand the technical solution of the present application, the present utility model will be further described in detail below with reference to the accompanying drawings and examples.

In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only These are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts should fall within the scope of protection of the present invention.

As shown in Figures 1-4, one embodiment of the present invention provides an alcohol fuel cracking hydrogen production device, including an exhaust inlet unit, an alcohol fuel cracking hydrogen production unit and an exhaust gas that are fixedly connected in sequence from left to right. The outlet unit is characterized in that: the exhaust inlet unit includes: exhaust inlet 26, exhaust inlet end fixing part 27 and exhaust inlet temperature sensor 25; alcohol fuel cracking hydrogen production unit includes, evaporator 17, nickel-based catalyst vapor Import 18, nickel-based catalyst temperature sensor 19, nickel-based catalyst microchannel 20, nickel-based catalyst and copper-based catalyst interface 21, copper-based catalyst microchannel 22, copper-based catalyst temperature sensor 23, copper-based catalyst cracking gas outlet 24, cracking Gas solenoid valve 28, copper-based catalyst substrate 29, nickel-based catalyst substrate 30 and alcohol vapor outlet 31; the exhaust outlet unit includes: exhaust outlet 33, exhaust outlet end fixing part 32 and exhaust outlet temperature sensor 34; alcohol The fuel-like cracking hydrogen production unit has a hollow cylinder structure as a whole. The nickel-based catalyst microchannel 20 is arranged inside the nickel-based catalyst substrate 30. The nickel-based catalyst substrate 30 provides support for the nickel-based catalyst microchannel 20; the copper-based catalyst microchannel 22 is arranged Inside the copper-based catalyst substrate 29, the copper-based catalyst substrate 29 provides support for the copper-based catalyst microchannels 22; the nickel-based catalyst microchannels 20 and the copper-based catalyst microchannels 22 serve as alcohol fuel in the alcohol fuel cracking hydrogen production unit. Circulation channel; in a cross section perpendicular to the central axis of the alcohol fuel cracking hydrogen production unit, the nickel-based catalyst microchannels 20 and/or the copper-based catalyst microchannels 22 are distributed in a non-equidistant circular shape.

Optionally, the copper-based catalyst substrate 29 is connected to the exhaust inlet unit, and the nickel-based catalyst substrate 30 is connected to the exhaust outlet unit; the nickel-based catalyst substrate 30 is connected to the copper-based catalyst through the nickel-based catalyst and copper-based catalyst interface 21 The base body 29 is connected.

Optionally, the exhaust inlet end fixing part 27 and/or the exhaust outlet end fixing part 32 are fixed on the engine high-temperature exhaust pipe through bolts; the engine high-temperature exhaust enters through the exhaust inlet 26 and is a nickel-based catalyst substrate 30, The copper-based catalyst substrate 29 and the evaporator 17 provide a high-temperature heat source, which is discharged to downstream components through the exhaust outlet 33.

As can be seen from Figure 5, optionally, the evaporator 17 includes an evaporator inlet 17-1, an evaporator outlet 17-2 and an evaporator communication pipe 17-3; the evaporator 17 passes through the alcohol vapor outlet 31 and the nickel-based catalyst vapor in sequence. The inlet 18 is connected to the nickel-based catalyst substrate 30; the alcohol fuel enters the evaporator 17 through the evaporator inlet 17-1, forms alcohol vapor in the evaporator 17, and the alcohol vapor flows out of the evaporator 17 through the evaporator outlet 17-2; And enter the nickel-based catalyst microchannel 20 through the alcohol vapor outlet 31 and the nickel-based catalyst vapor inlet 18 in sequence.

Optionally, the copper-based catalyst substrate 29 is connected to the cracked gas solenoid valve 28 through the copper-based catalyst cracked gas outlet 24; after the alcohol fuel passes through the nickel-based catalyst substrate 30 and the copper-based catalyst substrate 29, the cracked gas formed sequentially passes through the copper-based catalyst substrate 30 and the copper-based catalyst substrate 29. The catalyst cracked gas outlet 24 and the cracked gas solenoid valve 28 flow out downstream.

Optionally, the nickel-based catalyst temperature sensor 19 is distributed and installed in the nickel-based catalyst substrate 30 and is used to monitor the temperature of the nickel-based catalyst substrate 30 in real time; the copper-based catalyst temperature sensor 23 is distributed and installed in the copper-based catalyst substrate 29 and is used to monitor the temperature of the nickel-based catalyst substrate 30. The temperature of the copper-based catalyst substrate 29 is monitored in real time.

Also shown in Figure 1, another embodiment of the present invention provides an alcohol fuel cracking hydrogen production system, which in addition to the alcohol fuel cracking hydrogen production device as in the previous embodiment, also includes an electronic control unit, a fuel Supply unit and cracked gas storage unit; among them, the electronic control unit 3 is used to receive the engine speed 1 and the engine load 2; the fuel supply unit, the cracked gas storage unit, the exhaust inlet temperature sensor 25 in the alcohol fuel cracking hydrogen production device, The exhaust outlet temperature sensor 34, the nickel-based catalyst temperature sensor 19, the copper-based catalyst temperature sensor 23 and the cracked gas solenoid valve 28 are respectively connected in communication with the electronic control unit 3.

Optionally, the fuel supply unit includes a liquid level sensor 4, a fuel filling port and a pressure relief valve 10, a drain valve 7, an alcohol storage fuel tank 46, one or more fuel pump filters, and one or more fuel pumps. , one or more alcohol fuel solenoid valves and one or more flow meters; wherein: the liquid level sensor 4 is installed at the top of the alcohol storage fuel tank 46, and the oil drain valve 7 is installed at the bottom of the alcohol storage fuel tank 46; one or A plurality of fuel pump filters are distributed at the bottom of the alcohol fuel tank 46 and are respectively connected to the inlet of one or more fuel pumps through pipes. The outlet of each fuel pump is connected to one or more alcohol fuel solenoid valves through pipes. The inlet connection of one or more alcohol fuel solenoid valves is connected to the evaporator inlet 17-1 of the evaporator 17 through a pipeline, and the on/off of the alcohol fuel in the pipeline is controlled in real time; the liquid level sensor 4, one or Multiple fuel pumps and one or more alcohol fuel solenoid valves are individually connected to the electronically controlled Communication connection of control unit 3.

Optionally, the cracked gas storage unit includes a cracked gas storage main solenoid valve 37, n cracked gas storages, n cracked gas storage outlet valves and n-1 cracked gas storage branch solenoid valves, n is an integer greater than or equal to 2; The outlet of the cracked gas solenoid valve 28 is connected to the inlet of the cracked gas storage main solenoid valve 37 through a pipeline, and the outlet of the cracked gas storage main solenoid valve 37 is connected to the inlet of the first of the n cracked gas storages through a pipeline; the nth The pyrolysis gas storage and the n-1th pyrolysis gas storage are connected through pipelines respectively, and the n-1 pyrolysis gas storage solenoid valves are respectively arranged between the nth pyrolysis gas storage and the n-1th pyrolysis gas storage. On the pipeline; the outlets of the n cracked gas storage units are respectively connected to the inlets of the n cracked gas storage outlet valves through pipelines, and the outlets of the n cracked gas storage outlet valves are respectively connected to the pipelines, thereby releasing the cracked gas downstream; the cracked gas solenoid valve 28. The main pyrolysis gas storage solenoid valve 37, the n pyrolysis gas storage outlet valves and the n-1 pyrolysis gas storage branch solenoid valves are respectively connected to the electronic control unit 3 through communication.

Another embodiment of the present invention provides a control method for an alcohol fuel cracking hydrogen production system, which is used to control the alcohol fuel cracking hydrogen production system as in the previous embodiment. It can be seen from Figures 1-11 of the description. , the specific steps of this control method include: the electronic control unit 3 collects the engine speed 1, the engine load 2, and the signals of the exhaust inlet temperature sensor 5 and the exhaust outlet temperature sensor 34 in real time to determine the engine operating status; the electronic control unit 3 Collect the temperature status of the nickel-based catalyst temperature sensor 19 and the copper-based catalyst temperature sensor 23 in real time, and control one or more catalyst flow solenoid valves according to the engine operating conditions and temperature status to adjust the flow rate of alcohol vapor entering the catalyst substrate; electronically The control unit 3 collects the pressure status of n cracked gas storage devices in real time, and controls the cracked gas storage main solenoid valve 37, n cracked gas storage outlet valves and n-1 cracked gas storage sub-solenoid valves according to the engine operating condition and pressure status. To achieve stepwise utilization of engine exhaust heat.

Optionally, one or more fuel pump filters include a first fuel pump filter 6, a second fuel pump filter 8 and a third fuel pump filter 9; one or more fuel pumps include a first fuel pump 5, the second fuel pump 36 and the third fuel pump 35; the one or more alcohol fuel solenoid valves include a first alcohol fuel solenoid valve 14, a second alcohol fuel solenoid valve 15 and a third alcohol fuel solenoid valve 16.

Optionally, the first fuel pump filter 6, the second fuel pump filter 8, and the third fuel pump filter 9 are distributed and placed at the bottom of the alcohol storage tank 46, and are connected to the first fuel pump 5 and the first fuel pump 5 through pipelines respectively. The third fuel pump 35 and the second fuel pump 36 are connected, and the pipeline and the alcohol storage fuel tank 46 are fixedly connected by welding to prevent the alcohol vapor in the alcohol storage fuel tank 46 from leaking. The first fuel pump 5, the third fuel pump 35, and the second fuel pump 36 are respectively connected to the first alcohol fuel solenoid valve 14, the second alcohol fuel solenoid valve 15, and the third alcohol fuel solenoid valve 16 through pipelines. And the first alcohol The fuel-like solenoid valve 14, the second alcohol fuel solenoid valve 15, and the third alcohol fuel solenoid valve 16 are connected to the evaporator 17 through pipelines. The first alcohol fuel solenoid valve 14, the second alcohol fuel solenoid valve 15, and The triol fuel solenoid valve 16 controls the on/off of the alcohol fuel in the pipeline in real time, and cooperates with the working status of the first fuel pump 5, the third fuel pump 35, and the second fuel pump 36 to determine the high, medium, and high voltages in the evaporator 17. Low different alcohol flow rates, real-time adjustment of alcohol fuel in the 17-evaporator.

Optionally, the alcohol fuel enters 17-1 through the evaporator inlet of the evaporator 17, forms alcohol vapor fuel in the evaporator, and then comes out through the evaporator outlet 17-2; while the evaporator 17 passes through the evaporator inlet 17- 1 and the evaporator outlet 17-2 are welded to the pipe, and the evaporator 17 is fixed on the device; the high-temperature heat in the engine exhaust passage passes through the evaporator 17, and transfers the heat to the liquid alcohol fuel in real time, promoting the evaporation of the liquid alcohol fuel, forming Alcohol vapor. The alcohol vapor enters the nickel-based catalyst vapor inlet 18 through the alcohol vapor outlet 31, and thereby enters the nickel-based catalytic microchannel 20. Since the temperature in the engine exhaust pipe is higher in the center of the circular pipe and lower in the exhaust pipe wall, the temperature is non-uniformly distributed in the exhaust pipe. In order to fully benefit the high-temperature gas in the engine exhaust pipe, hundreds of nickel-based catalytic microchannels 20 and copper-based catalyst microchannels 22 are distributed inside the copper-based catalyst substrate 29 and the nickel-based catalyst substrate 30. The nickel-based catalytic microchannels 20 and The copper-based catalyst microchannels 22 are respectively distributed in a circular manner in the device; and the circularly distributed catalytic microchannels are non-equally distributed in the device, that is, the circularly distributed catalytic microchannels are non-uniformly distributed in the device, forming non-uniform microchannels. , forming a shape with dense distribution in the center and sparse distribution in the circumferential direction; thus it is conducive to fully absorbing the high-temperature exhaust heat of the engine, accelerating the cracking rate of alcohol vapor, and improving the cracking efficiency.

Optionally, the n pyrolysis gas storages include a low-pressure pyrolysis gas storage 44, a medium-pressure pyrolysis gas storage 42 and a high-pressure pyrolysis gas storage 40; the n pyrolysis gas storage outlet valves include a low-pressure pyrolysis gas storage outlet valve 45, a medium-pressure pyrolysis gas storage The outlet valve 43 and the outlet valve of the high-pressure cracked gas storage 41; the n-1 cracked gas storage solenoid valves include the medium-pressure cracked gas storage solenoid valve 38 and the high-pressure cracked gas storage solenoid valve 39.

Optionally, the cracked gas is connected to the cracked gas solenoid valve 28 and the cracked gas storage main solenoid valve 37 through pipelines, and then is welded and connected to the low-pressure cracked gas storage 44 through the pipeline, and the cracked gas is first stored in the low-pressure cracked gas storage 44 In the middle, the low-pressure cracked gas storage 44 and the medium-pressure cracked gas storage 42 are connected through the medium-pressure cracked gas storage solenoid valve 38, and the medium-pressure cracked gas storage 42 and the high-pressure cracked gas storage 40 are connected through the high-pressure cracked gas storage solenoid valve 39; The high-pressure pyrolysis gas storage 40, the medium-pressure pyrolysis gas storage 42 and the low-pressure pyrolysis gas storage 44 are distributed and connected through the high-pressure pyrolysis gas storage outlet valve 41, the medium-pressure pyrolysis gas storage outlet valve 43 and the low-pressure pyrolysis gas storage 45 outlet valve, and the stored gas is connected. The cracked gas is supplied to the downstream pipeline. When the pressure of the cracked gas stored in the low-pressure cracked gas storage 44 reaches a certain value, the medium-pressure cracked gas storage solenoid valve 38 opens, and the low pressure The cracked gas in the middle of the cracked gas storage 44 will enter the medium-pressure cracked gas storage 42; when the cracked gas pressure in the medium-pressure cracked gas storage 42 reaches a certain value, the high-pressure cracked gas storage solenoid valve 39 opens the cracked gas in the middle of the medium-pressure cracked gas storage 42. Enter the high-pressure cracked gas storage 41.

Optionally, engine speed 1, engine load 2, exhaust inlet temperature sensor 25, and exhaust outlet temperature sensor 34 are connected to the electronic control unit 3 through signal lines. The electronic control unit 3 collects engine speed 1, engine load 2, and exhaust in real time. The signals from the air inlet temperature sensor 25 and the exhaust outlet temperature sensor 34 determine that the engine is in a working condition, that is, a low load condition, a medium load condition, or a large load condition. The nickel-based catalyst temperature sensor 19 and the copper-based catalyst temperature sensor 23 are connected to the electronic control unit 3 through signal lines. The electronic control unit 3 collects the signals of the nickel-based catalyst temperature sensor 19 and the copper-based catalyst temperature sensor 23 in real time. The electronic control unit 3 real-time Calculate and determine the temperature state of the catalyst substrate, thereby adjusting the flow rate of alcohol vapor entering the catalyst substrate to achieve the optimal cracking state of the nickel-based catalyst microchannel 20 and the copper-based catalyst microchannel 22. First fuel pump 5, first flow meter 11, second flow meter 12, third flow meter 13, first alcohol fuel solenoid valve 14, second alcohol fuel solenoid valve 15, third alcohol fuel solenoid valve 16 , the cracked gas solenoid valve 28, the third fuel pump 35, the second fuel pump 36 and the cracked gas storage master solenoid valve 37 are connected to the electronic control unit 3 through signal lines. The electronic control unit 3 determines the engine speed 1, the engine load 2, the exhaust gas The signals of the air inlet temperature sensor 25 and the exhaust outlet temperature sensor 34 are used to determine the specific operating conditions of the engine, and then control the first fuel pump 5, the first flow meter 11, the second flow meter 12, the third flow meter 13, and the first alcohol The opening or closing of the fuel-like solenoid valve 14, the second alcohol fuel solenoid valve 15, the third alcohol fuel solenoid valve 16, the third fuel pump 35 and the second fuel pump 36 determines the evaporator inlet 17-1, evaporation The flow state of the evaporator outlet 17-2 and the evaporator connecting pipe 17-3 is realized to detect different alcohol fuel flow rates and meet the alcohol fuel flow requirements of the non-uniform microchannel alcohol fuel cracking hydrogen production device under different working conditions. .

Optionally, this embodiment also provides control strategies for low load and low flow demand, medium load and low flow demand, and large load and low flow demand, specifically:

Under low load and low traffic demand:

As shown in Figures 1, 2, 3, 6, and 7, based on the collected signals, the electronic control unit 3 calculates and judges in real time that when the engine is in a low load state, that is, the engine exhaust temperature is low, in order to achieve non-uniform microchannel alcohol fuel cracking production The hydrogen device has the highest efficiency and is fully beneficial to the engine exhaust heat; therefore, the electronic control unit 3 controls the first fuel pump 5, the first flow meter 11, the first alcohol fuel solenoid valve 14, and the cracked gas solenoid valve 28 according to the pre-stored instructions. And the cracked gas storage main solenoid valve 37 works, and closes the second flow meter 12, the third flow meter 13, the second alcohol fuel cell The solenoid valve 15, the third alcohol fuel solenoid valve 16, the third fuel pump 35 and the second fuel pump 36 are in a closed working state. At this time, only one fuel pump of the non-uniform microchannel alcohol fuel cracking hydrogen production device is working. The first fuel pump 5 provides a lower flow rate of liquid alcohol fuel; the alcohol fuel is activated by the first fuel pump 5 and sucks the liquid alcohol fuel from the first fuel pump filter 6 of the alcohol fuel tank 46, After passing through the first flow meter 11 and the first alcohol fuel solenoid valve 14, it enters the evaporator inlet 17-1 of the evaporator 17 (as shown in Figures 6 and 7). The left and right evaporators 17 pass through the evaporator communication pipe 17- 3 connection, the liquid alcohol fuel enters the right evaporator from the left evaporator. The liquid alcohol fuel continuously absorbs heat from the engine exhaust energy in the evaporator 17, and the liquid alcohol fuel continues to evaporate; due to the curved structure of the evaporator 17, the internal The surface area is very large, thereby promoting all liquid alcohol fuel to form alcohol vapor fuel. The low-flow alcohol vapor enters the nickel-based catalyst vapor inlet 18 through the evaporator outlet 17-2 and the alcohol vapor outlet 31. The alcohol vapor flows along the The non-uniformly distributed nickel-based catalyst microchannels 20 flow; and the nickel-based catalyst microchannels 20 achieve stable catalyst operation while absorbing engine exhaust heat, thereby promoting the breakage of carbon-carbon bonds in alcohol fuels, and the nickel-based catalyst is The carbon-carbon bond breaking activity is very high, which is conducive to the breaking of carbon-carbon bonds of multi-carbon alcohol fuels to form single-carbon molecular fuels. Subsequently, the single-carbon molecular fuel passes through the interface of the nickel-based catalyst 21 and the copper-based catalyst, enters the copper-based catalyst matrix 29, and continues to flow along the copper-based catalyst microchannel 22, while the copper-based catalyst microchannel 22 absorbs the heat of the engine exhaust. Under such circumstances, the catalyst can work stably, thereby promoting the breaking of the carbon-hydrogen bonds of the single-carbon molecule fuel. The copper-based catalysis can effectively break the carbon-hydrogen bonds, so that the carbon-hydrogen bonds of the single-carbon molecule fuel can be broken. Under the action of the dual catalysts, the alcohol vapor The fuel is cracked to form hydrogen and carbon monoxide cracked gas. The formed cracked gas passes through the cracked gas solenoid valve 28 and the cracked gas storage main solenoid valve 37 and then enters the low-pressure cracked gas storage 44; when the electronic control unit 3 monitors that the pressure in the low-pressure cracked gas storage 44 reaches a certain level, the electronic control unit 3. Control the medium-pressure cracked gas storage solenoid valve 38 to open, and the cracked gas enters the medium-pressure cracked gas storage 42 from the low-pressure cracked gas storage 44 for storage. When the cracked gas stored in the low-pressure cracked gas storage 44 and the medium-pressure cracked gas storage 42 needs to be used downstream, the electronic control unit 3 first controls the outlet valve of the low-pressure cracked gas storage 45 to open, thereby releasing it from the low-pressure cracked gas storage 44 to the downstream. Cracking gas; when the electronic control unit 3 detects that the flow of the low-pressure cracked gas storage 44 is insufficient, the electronic control unit 3 controls the medium-pressure cracked gas storage outlet valve 43 to open, thereby releasing the cracked gas downstream from the medium-pressure cracked gas storage 42; ultimately, thus Realize the cascade utilization of engine exhaust heat for cracking alcohol fuel to obtain high-grade hydrogen and carbon monoxide cracked gas, realize engine exhaust heat recovery, and improve engine thermal efficiency and economic benefits.

Under medium load and low traffic demand:

As shown in Figures 1, 2, 3, 8 and 9, based on the collected signals, the electronic control unit 3 calculates and judges in real time, When the engine is in a medium load state, that is, the engine exhaust temperature is moderate, in order to achieve the highest efficiency of the non-uniform microchannel alcohol fuel cracking hydrogen production device, and at the same time fully benefit the engine exhaust heat; therefore, the electronic control unit 3 controls the third A fuel pump 5, a second fuel pump 36, a first flow meter 11, a second flow meter 12, a first alcohol fuel solenoid valve 14, a second alcohol fuel solenoid valve 15, a cracked gas solenoid valve 28 and a cracked gas storage The main solenoid valve 37 works, and the third flow meter 13, the third alcohol fuel solenoid valve 16 and the third fuel pump 35 are closed, that is, they are in a closed working state. At this time, the non-uniform microchannel alcohol fuel cracking hydrogen production device has two Two fuel pumps work; the alcohol fuel is started by the first fuel pump 5 and the second fuel pump 36, and the first fuel pump 5 and the second fuel pump 36 provide medium flow liquid alcohol fuel from the alcohol storage tank 46 The first fuel pump filter 6 and the second fuel pump filter 8 suck liquid alcohol fuel through the first flow meter 11, the second flow meter 12, the first alcohol fuel solenoid valve 14 and the second alcohol fuel After the solenoid valve 15, enter the evaporator inlet 17-1 of the evaporator 17 respectively (as shown in Figures 8 and 9). The left and right evaporators 17 are connected through the evaporator connecting pipe 17-3, and the liquid alcohol fuel flows from the left evaporator Entering the evaporator on the right, the liquid alcohol fuel continuously absorbs heat from the engine exhaust energy in the evaporator 17, and the liquid alcohol fuel continues to evaporate; due to the curved structure of the evaporator 17, the inner surface area is very large, thereby promoting the complete removal of the liquid alcohol fuel Alcohol vapor is formed, and the medium-flow alcohol vapor enters the nickel-based catalyst vapor inlet 18 through the evaporator outlet 17-2 and the alcohol vapor outlet 31, and the alcohol vapor flows along the non-uniformly distributed nickel-based catalyst microchannel 20; The nickel-based catalyst microchannel 20 achieves stable catalyst operation while absorbing engine exhaust heat, thereby promoting the breaking of carbon-carbon bonds in alcohol fuels. The nickel-based catalyst has very high activity in breaking carbon-carbon bonds, which is beneficial to multi-carbon fuels. The carbon-carbon bonds of alcohol fuel break to form single-carbon molecular fuel. Subsequently, the single carbon molecular fuel passes through the nickel-based catalyst and copper-based catalyst interface 21, enters the copper-based catalyst matrix 29, and continues to flow along the copper-based catalyst microchannel 22, while the copper-based catalyst microchannel 22 absorbs the heat of the engine exhaust. Under such circumstances, the catalyst can work stably, thereby promoting the breaking of the carbon-hydrogen bonds of the single-carbon molecule fuel. The copper-based catalysis can effectively break the carbon-hydrogen bonds, so that the carbon-hydrogen bonds of the single-carbon molecule fuel can be broken. Under the action of the dual catalysts, the alcohol vapor The fuel is cracked to form hydrogen and carbon monoxide cracked gas. The formed cracked gas passes through the cracked gas solenoid valve 28 and the cracked gas storage main solenoid valve 37 and then enters the low-pressure cracked gas storage 44 for storage; when the electronic control unit 3 monitors that the pressure in the low-pressure cracked gas storage 44 reaches a certain level, the electronic control unit 3. Control the medium-pressure pyrolysis gas storage solenoid valve 38 to open, and the pyrolysis gas enters the medium-pressure pyrolysis gas storage 42 from the low-pressure pyrolysis gas storage 44 for storage; when the electronic control unit 3 monitors that the pressure in the medium-pressure pyrolysis gas storage 42 reaches a certain level , the electronic control unit 3 controls the high-pressure cracked gas storage solenoid valve 39 to open, and the cracked gas enters the medium-pressure cracked gas storage 42 into the high-pressure cracked gas storage 40 for storage. When needed, it will be stored in the low-pressure pyrolysis gas storage 44, the medium-pressure pyrolysis gas storage 42 and the high-pressure pyrolysis gas storage 40 The cracked gas is used downstream. The electronic control unit 3 first controls the low-pressure cracked gas storage outlet valve 45 to open, thereby releasing the cracked gas from the low-pressure cracked gas storage 44 to the downstream; when the electronic control unit 3 detects that the flow rate of the low-pressure cracked gas storage 44 is insufficient. , the electronic control unit 3 controls the outlet valve 43 of the medium-pressure pyrolysis gas storage to open, thereby releasing the pyrolysis gas from the medium-pressure pyrolysis gas storage 42 downstream; when the electronic control unit 3 detects that the flow rate of the low-pressure pyrolysis gas storage 44 is insufficient, the electronic control unit 3 Control the high-pressure cracked gas storage outlet valve 41 to open, thereby releasing the cracked gas from the high-pressure cracked gas storage 40 downstream; ultimately, the cascade utilization of engine exhaust heat is used to crack alcohol fuel to obtain high-grade hydrogen and carbon monoxide cracked gas. Realize engine exhaust heat recovery and improve engine thermal efficiency and economic benefits.

Under heavy load and low flow demand:

As shown in Figures 1, 2, 3, 10 and 11: According to the collected signals, the electronic control unit 3 calculates and judges in real time that when the engine is in a large load state, that is, the engine exhaust temperature is high, in order to achieve non-uniform microchannel alcohol The fuel cracking hydrogen production device has the highest efficiency and is fully conducive to engine exhaust heat; therefore, the electronic control unit 3 controls the first fuel pump 5, the second fuel pump 36, the third fuel pump 35, and the first flow meter 11 according to the pre-stored instructions. , the second flow meter 12, the third flow meter 13, the first alcohol fuel solenoid valve 14, the second alcohol fuel solenoid valve 15, the third alcohol fuel solenoid valve 16, the cracked gas solenoid valve 28 and the cracked gas storage system. The solenoid valve 37 is working. At this time, the non-uniform micro-channel alcohol fuel cracking hydrogen production device has three fuel pumps working; the alcohol fuel is started by the first fuel pump 5, the second fuel pump 36 and the third fuel pump 35. The fuel pump 5, the second fuel pump 36 and the third fuel pump 35 provide a large flow of liquid alcohol fuel from the first fuel pump filter screen 6, the second fuel pump filter screen 8 and the third fuel pump filter screen 46 of the alcohol storage tank 46. The fuel pump filter 9 sucks liquid alcohol fuel through the first flow meter 11, the second flow meter 12, the third flow meter 13, the first alcohol fuel solenoid valve 14, the second alcohol fuel solenoid valve 15 and the After the triol fuel solenoid valve 16, it enters the evaporator inlet 17-1 of the evaporator 17 (as shown in Figures 10 and 11). The left and right evaporators are connected through the 17 evaporator connecting pipe 17-3. The liquid alcohol fuel Entering the evaporator on the right from the left evaporator, the liquid alcohol fuel continuously absorbs heat from the engine exhaust energy in the evaporator 17, and the liquid alcohol fuel continues to evaporate; due to the curved structure of the evaporator 17, the inner surface area is very large, thereby promoting liquid The alcohol fuel all forms alcohol vapor fuel. A large flow of alcohol vapor enters the nickel-based catalyst vapor inlet 18 through the evaporator outlet 17-2 and the alcohol vapor outlet 31. The alcohol vapor is distributed along the non-uniformly nickel-based catalyst. The microchannel 20 flows; and the nickel-based catalyst microchannel 20 achieves stable catalyst operation while absorbing engine exhaust heat, thereby promoting the breaking of carbon-carbon bonds in alcohol fuel. The nickel-based catalyst has very high activity in breaking carbon-carbon bonds. , which is conducive to the breakage of carbon-carbon bonds in multi-carbon alcohol fuels to form single-carbon molecular fuels. Subsequently, the single-carbon molecular fuel passes through a nickel-based catalyst and copper The base catalyst interface 21 enters the copper-based catalyst matrix 29 and continues to flow along the copper-based catalyst microchannel 22. The copper-based catalyst microchannel 22 absorbs the heat of the engine exhaust to achieve stable catalyst operation, thereby promoting single carbon The carbon-hydrogen bond of the molecular fuel is broken, and the copper-based catalysis can effectively break the carbon-hydrogen bond, so that the carbon-hydrogen bond of the single-carbon molecular fuel is completely broken. Under the action of the dual catalyst, the alcohol vapor fuel is cracked to form hydrogen and carbon monoxide cracked gas. The formed cracked gas passes through the cracked gas solenoid valve 28 and the cracked gas storage main solenoid valve 37 and then enters the low-pressure cracked gas storage 44 for storage; when the electronic control unit 3 monitors that the pressure in the low-pressure cracked gas storage 44 reaches a certain level, the electronic control unit 3. Control the medium-pressure pyrolysis gas storage solenoid valve 38 to open, and the pyrolysis gas enters the medium-pressure pyrolysis gas storage 42 from the low-pressure pyrolysis gas storage 44 for storage; when the electronic control unit 3 monitors that the pressure in the medium-pressure pyrolysis gas storage 42 reaches a certain level , the electronic control unit 3 controls the high-pressure cracked gas storage solenoid valve 39 to open, and the cracked gas enters the medium-pressure cracked gas storage 42 into the high-pressure cracked gas storage 40 for storage. When the pyrolysis gas stored in the low-pressure pyrolysis gas storage 44, the medium-pressure pyrolysis gas storage 42 and the high-pressure pyrolysis gas storage 40 needs to be used downstream, the electronic control unit 3 first controls the low-pressure pyrolysis gas storage outlet valve 45 to open, so that the low-pressure pyrolysis gas storage is opened. The storage 44 releases cracked gas downstream; when the electronic control unit 3 detects that the flow rate of the low-pressure cracked gas storage 44 is insufficient, the electronic control unit 3 controls the medium-pressure cracked gas storage outlet valve 43 to open, thereby releasing the medium-pressure cracked gas storage 42 downstream. Cracking gas; when the electronic control unit 3 detects that the flow rate of the low-pressure cracking gas storage 44 is insufficient, the electronic control unit 3 controls the high-pressure cracking gas storage outlet valve 41 to open, thereby releasing the cracking gas from the high-pressure cracking gas storage 40 downstream; ultimately, this is achieved The cascade uses engine exhaust heat to crack alcohol fuel to obtain high-grade hydrogen and carbon monoxide cracked gas, realize engine exhaust heat recovery, and improve engine thermal efficiency and economic benefits.

The invention maximizes the recovery of engine high-temperature exhaust heat, fully facilitates the evaporation of liquid alcohol fuel with high-temperature engine heat, and realizes cracking and production of hydrogen in a non-uniform micro-channel alcohol fuel cracking and hydrogen production device, and utilizes corresponding control strategies. , so that the non-uniform micro-channel alcohol fuel cracking hydrogen production device operates in the best condition, and realizes cascade recovery of engine high-temperature heat under different load conditions to further improve fuel energy, engine thermal efficiency and economy, reduce exhaust emissions, and achieve low carbon Clean and efficient combustion and other goals.

In the present invention, terms such as "connection", "storage" and "release" should be understood in a broad sense. For example, "connection" can be a direct connection or an indirect connection; for those of ordinary skill in the art, it can be The specific meanings of the above terms in this application should be understood according to the specific circumstances.

The shapes of each component in the drawings are schematic and do not exclude certain differences from their actual shapes. The drawings are only used to illustrate the principles of the invention and are not intended to limit the invention.

Although specific embodiments of the present invention have been disclosed in detail with reference to the accompanying drawings, it should be understood that these descriptions are exemplary only and are not intended to limit the application of the present invention. The protection scope of the present invention is defined by the appended claims, and may include various modifications, modifications and equivalent solutions to the present invention without departing from the protection scope and spirit of the present invention.

Claims (10)

1. An alcohol fuel cracking hydrogen production device, which is characterized by: including an exhaust inlet unit, an alcohol fuel cracking hydrogen production unit and an exhaust outlet unit that are fixedly connected in sequence, and is characterized by:

   The exhaust inlet unit includes: an exhaust inlet, an exhaust inlet end fixing part and an exhaust inlet temperature sensor;

   The alcohol fuel cracking hydrogen production unit includes: evaporator, nickel-based catalyst vapor inlet, nickel-based catalyst temperature sensor, nickel-based catalyst microchannel, nickel-based catalyst and copper-based catalyst interface, copper-based catalyst microchannel, copper-based catalyst Temperature sensor, copper-based catalyst cracked gas outlet, cracked gas solenoid valve, copper-based catalyst substrate, nickel-based catalyst substrate and alcohol vapor outlet;

   The exhaust outlet unit includes: an exhaust outlet, an exhaust outlet end fixing part and an exhaust outlet temperature sensor;

   The alcohol fuel cracking hydrogen production unit has a hollow cylinder structure as a whole, the nickel-based catalyst microchannel is arranged inside the nickel-based catalyst substrate, and the nickel-based catalyst substrate provides support for the nickel-based catalyst microchannel; The copper-based catalyst microchannel is arranged inside the copper-based catalyst substrate, and the copper-based catalyst substrate provides support for the copper-based catalyst microchannel;

   The nickel-based catalyst microchannel and the copper-based catalyst microchannel serve as circulation channels for alcohol fuel in the alcohol fuel cracking hydrogen production unit; in a cross section perpendicular to the central axis of the alcohol fuel cracking hydrogen production unit , the nickel-based catalyst microchannels and/or the copper-based catalyst microchannels are distributed in a non-equidistant circular shape.
2. An alcohol fuel cracking hydrogen production device according to claim 1, characterized in that: the copper-based catalyst substrate is connected to the exhaust inlet unit, and the nickel-based catalyst substrate is connected to the exhaust outlet unit ; The nickel-based catalyst substrate is connected to the copper-based catalyst substrate through the interface between the nickel-based catalyst and the copper-based catalyst.
3. An alcohol fuel cracking hydrogen production device according to claim 2, characterized in that: the exhaust inlet end fixing part and/or the exhaust outlet end fixing part are fixed on the high temperature exhaust pipe of the engine through bolts ; The high-temperature exhaust gas of the engine enters through the exhaust inlet, provides a high-temperature heat source for the nickel-based catalyst substrate, the copper-based catalyst substrate and the evaporator, and is discharged through the exhaust outlet.
4. An alcohol fuel cracking hydrogen production device according to any one of claims 1-3, characterized in that:

   The evaporator includes an evaporator inlet, an evaporator outlet and an evaporator connecting pipe;

   The evaporator is connected to the nickel-based catalyst substrate through the alcohol vapor outlet and the nickel-based catalyst vapor inlet in sequence;

   Alcohol fuel enters the evaporator through the evaporator inlet, forms alcohol vapor in the evaporator, and the alcohol vapor flows out of the evaporator through the evaporator outlet; and passes through the alcohol in turn The vapor outlet and the nickel-based catalyst vapor inlet enter the nickel-based catalyst microchannel.
5. An alcohol fuel cracking hydrogen production device according to any one of claims 1 to 3, characterized in that: the copper-based catalyst substrate is connected to the cracked gas solenoid valve through the copper-based catalyst cracked gas outlet. ;

   After the alcohol fuel passes through the nickel-based catalyst substrate and the copper-based catalyst substrate, the cracked gas formed flows out downstream through the cracked gas outlet of the copper-based catalyst and the cracked gas solenoid valve in sequence.
6. An alcohol fuel cracking hydrogen production device according to any one of claims 1 to 3, characterized in that: the nickel-based catalyst temperature sensors are distributed and installed in the nickel-based catalyst matrix, and are used for real-time monitoring of all The temperature of the nickel-based catalyst substrate; the copper-based catalyst temperature sensor is distributed and installed in the copper-based catalyst substrate, and is used to monitor the temperature of the copper-based catalyst substrate in real time.
7. An alcohol fuel cracking hydrogen production system, including the alcohol fuel cracking hydrogen production device according to any one of claims 1 to 6, characterized in that: it also includes an electronic control unit, a fuel supply unit and a cracked gas storage unit; in,

   The electronic control unit is used to receive engine speed and engine load;

   The fuel supply unit, the cracked gas storage unit, the exhaust inlet temperature sensor, the exhaust outlet temperature sensor, the nickel-based catalyst temperature sensor, the copper-based catalyst temperature sensor and the cracked gas in the alcohol fuel cracking hydrogen production device The solenoid valves are respectively connected in communication with the electronic control unit.
8. An alcohol fuel cracking hydrogen production system according to claim 7, characterized in that: the fuel supply unit includes a liquid level sensor, a fuel filling port and a pressure relief valve, an oil drain valve, and an alcohol fuel tank. one or more fuel pump screens, one or more fuel pumps, one or more alcohol fuel solenoid valves, and one or more flow meters; where:

   The liquid level sensor is installed at the top of the alcohol storage fuel tank, and the oil drain valve is installed at the bottom of the alcohol storage fuel tank;

   The one or more fuel pump filters are distributed at the bottom of the alcohol storage fuel tank, and are respectively connected to the inlet of the one or more fuel pumps through pipes, and the outlet of each fuel pump is connected to the inlet through pipes. The inlet of the one or more alcohol fuel solenoid valves is connected, and the outlet of the one or more alcohol fuel solenoid valves is connected to the evaporator inlet of the evaporator through a pipeline, and the flow of the alcohol fuel in the pipeline is controlled in real time. break;

   The liquid level sensor, the one or more fuel pumps and the one or more alcohol fuel solenoid valves are respectively communicatively connected with the electronic control unit.
9. An alcohol fuel cracking hydrogen production system according to claim 8, characterized in that: the cracked gas storage unit includes a cracked gas storage main solenoid valve, n cracked gas storage units, n cracked gas storage outlet valves and n -1 cracked gas storage solenoid valve, n is an integer greater than or equal to 2;

   The outlet of the cracked gas solenoid valve is connected to the inlet of the cracked gas storage main solenoid valve through a pipeline, and the outlet of the cracked gas storage main solenoid valve is connected to the inlet of the first of the n cracked gas storages through a pipeline; The n-th pyrolysis gas storage and the n-1 th pyrolysis gas storage are connected by pipelines respectively, and the n-1 pyrolysis gas storage solenoid valves are respectively arranged on the n-th pyrolysis gas storage and the n-1 th pyrolysis gas storage. on the pipeline between the cracked gas storage tanks;

   The outlets of the n cracked gas storage devices are respectively connected to the inlets of the n cracked gas storage outlet valves through pipelines, and the outlets of the n cracked gas storage outlet valves are respectively connected to pipelines to release cracked gas downstream;

   The cracked gas solenoid valve, the cracked gas storage main solenoid valve, the n cracked gas storage outlet valves and the n-1 cracked gas storage branch solenoid valves are respectively connected to the electronic control unit in communication.
10. An alcohol fuel cracking hydrogen production system according to claim 9, characterized in that:

    The one or more fuel pump filters include a first fuel pump filter, a second fuel pump filter and a third fuel pump filter; the one or more fuel pumps include a first fuel pump, a second fuel pump and a third fuel pump; the one or more alcohol fuel solenoid valves include a first alcohol fuel solenoid valve, a second alcohol fuel solenoid valve and a third alcohol fuel solenoid valve;

    The n cracked gas storages include low-pressure cracked gas storage, medium-pressure cracked gas storage and high-pressure cracked gas storage; the n cracked gas storage outlet valves include low-pressure cracked gas storage outlet valves, medium-pressure cracked gas storage outlet valves and high-pressure cracked gas storage outlets. The cracked gas storage outlet valve; the n-1 cracked gas storage solenoid valves include a medium pressure cracked gas storage solenoid valve and a high pressure cracked gas storage solenoid valve.