Carbon removing machine for vehicle engine

Abstract

The present application provides a carbon remover for a vehicle engine, comprising: a raw material part in which methanol water as a hydrogen production fuel is stored; the methanol hydrogen production recombination device is connected with the raw material part; the methanol-to-hydrogen reformer is configured to prepare methanol water from the raw material part into high-purity hydrogen, and the purity of the high-purity hydrogen is greater than 99.9%; the supply pump is arranged between the raw material part and the methanol-to-hydrogen reformer and is used for providing power for transportation of methanol water; the heat exchanger is configured to perform heat exchange on methanol water before entering the methanol-to-hydrogen recombination device and high-purity hydrogen prepared by the methanol-to-hydrogen recombination device; the buffer tank is located at the rear end of the heat exchanger; the buffer tank is configured to store high-purity hydrogen subjected to heat exchange; and the hydrogen output pipe is connected with the buffer tank so as to provide hydrogen in the buffer tank for an engine of the vehicle.

Description

Technical Field

[0001] The present application belongs to the technical field of vehicle carbon removal, and in particular, relates to a carbon removal machine for vehicle engines. Background Art

[0002] Diesel vehicles, especially heavy trucks with a load capacity of more than 10 tons, are mainly used for medium and long-distance cargo transportation. They have long working hours. Vehicle engine maintenance usually involves replacing diesel filters, oil filters, gear oil, etc. However, the carbon deposits generated by the engine due to long-term operation cannot be handled. The engine carbon deposits mainly come from incomplete combustion of diesel, which causes organic matter to accumulate in the engine to form carbon deposits. The main parts are the top of the piston, spark plugs, in-cylinder fuel injectors, intake and exhaust valves, and the cylinder entrance of the intake pipe. These carbon deposits will reduce the performance of the engine, reduce engine power, increase fuel consumption, increase exhaust suspended particulate pollutant emissions (carbon monoxide, hydrocarbons and carbon oxides), make cold starting difficult, idle speed unstable, poor acceleration, cylinder knock, and in severe cases may cause interference between the valve and piston movement, causing the cylinder wall to get stuck and scratched, resulting in serious leakage and cylinder scuffing. Therefore, it is very important to clean the carbon deposits to maintain the normal operation of diesel vehicles.

[0003] Vehicle decarbonization can generally be done by using chemical agents, manual disassembly of the decarbonizer and physical decarbonization, etc. However, heavy-duty diesel vehicles have many engine cylinders and a complex overall structure. Chemical agents are corrosive to the engine and the dosage is difficult to control. Physical disassembly and cleaning of the engine cylinder and piston is complicated and time-consuming, and may also affect the initial performance of the engine. Therefore, the above methods are not suitable for decarbonization or have little effect.

[0004] Therefore, using combustible hydrogen to remove carbon from heavy-duty diesel vehicle engines is simple to operate, without the side effects of chemical agents and technical and labor-intensive consumption. It can not only reduce fuel consumption, but also increase the life of spark plugs, fuel injectors, cylinder accessories, oxygen sensors, three-way catalytic converters and other equipment. It can also reduce vehicle exhaust suspended particulate pollutant emissions (carbon monoxide, hydrocarbons and carbon oxides) by improving combustion efficiency. Utility Model Content

[0005] In view of some deficiencies in the prior art, the present application provides a decarbonizing machine for a vehicle engine, which comprises:

[0006] A raw material section, in which methanol water serving as a hydrogen production fuel is stored;

[0007] A methanol-to-hydrogen recombinator is connected to the raw material unit; the methanol-to-hydrogen recombinator is configured to prepare high-purity hydrogen from methanol water from the raw material unit, and the purity of the high-purity hydrogen is greater than 99.9%;

[0008] The supply pump is installed between the raw material section and the methanol hydrogen reformer to provide power for the transportation of methanol water;

[0009] A heat exchanger configured to exchange heat between methanol water before entering the methanol-to-hydrogen reformer and high-purity hydrogen produced by the methanol-to-hydrogen reformer;

[0010] A buffer tank is located at the rear end of the heat exchanger; the buffer tank is configured to store the high-purity hydrogen after heat exchange; and

[0011] The hydrogen output pipe is connected to the buffer tank so as to provide the hydrogen in the buffer tank to the engine of the vehicle.

[0012] In one embodiment, the methanol-to-hydrogen reformer includes a heater, an evaporator, a reactor and a hydrogen purifier; wherein the heater is capable of generating heat; the evaporator is adjacent to the heater, the front end of the evaporator is connected to the raw material section, and the rear end of the evaporator is connected to the reactor; the evaporator is configured to receive heat from the heater to heat and evaporate the methanol water from the raw material section into the reactor; the front end of the reactor is connected to the evaporator, and the rear end of the reactor is connected to the hydrogen purifier; the reactor is configured to receive vaporized methanol water from the evaporator and react to generate hydrogen-rich gas; the hydrogen purifier is configured to receive the hydrogen-rich gas from the reactor, and purify it into high-purity hydrogen and discharge tail gas; the rear end of the hydrogen purifier is connected to the heat exchanger on the one hand to provide high-purity hydrogen for heat exchange, and is connected to the heater on the other hand to provide tail gas as fuel for the heater.

[0013] In one embodiment, the methanol hydrogen recombiner is an independent module in the carbon removal machine, and also includes an inner shell and an outer shell; wherein a first chamber is formed in the inner shell, accommodating a heater, an evaporator, a reactor and a hydrogen purifier; a second chamber filled with a heat insulation layer is formed between the inner shell and the outer shell; the raw material part, the supply pump, the heat exchanger and the buffer tank are all located outside the outer shell. The heater is connected to a fan outside the outer shell to obtain air for combustion heating. The evaporator is a coil structure.

[0014] In one embodiment, a first three-way valve is provided between the supply pump and the heat exchanger; wherein, the inlet of the first three-way valve is connected to the outlet of the supply pump; the outlet of the first three-way valve can be switched between the heat exchanger and the raw material section; the first three-way valve is configured to: in a working state, connect the supply pump and the heat exchanger to provide raw materials for the methanol-to-hydrogen reformer; after the work is completed, switch to connect the supply pump and the raw material section to recover methanol water.

[0015] In one embodiment, a second three-way valve is provided between the heat exchanger and the buffer tank; wherein, the inlet of the second three-way valve is connected to the heat exchanger; the outlet of the second three-way valve can be switched between the buffer tank and the heater of the methanol-to-hydrogen reformer; the second three-way valve is configured to connect the heat exchanger and the buffer tank in a working state so as to cache the high-purity hydrogen for decarbonization in the buffer tank; after the work is completed, it is switched to connect the heat exchanger and the heater so that the excess hydrogen enters the heater for consumption.

[0016] In one embodiment, the hydrogen output pipe is provided with a shut-off valve for opening or closing the output of hydrogen, and a flow meter for monitoring the consumption of hydrogen in the hydrogen output pipe.

[0017] In one embodiment, the carbon removal machine is also equipped with a flameout detector and an exhaust gas detector; wherein the flameout detector can be placed on the engine of the vehicle to detect whether the vehicle is stalled before carbon removal; the exhaust gas detector can be configured at the exhaust emission of the vehicle to detect the carbon removal effect of the exhaust gas.

[0018] In one embodiment, the decarbonizer also includes a control module; the control module is electrically connected to the fan to control the start and stop of the fan; the control module is electrically connected to the supply pump to control the start and stop of the supply pump; the control module is electrically connected to the first three-way valve to control the switching of the first three-way valve; the control module is electrically connected to the second three-way valve to control the switching of the second three-way valve; the control module is electrically connected to the cut-off valve to control the opening and closing of the cut-off valve; the control module is electrically connected to the flow meter to obtain the flow data of hydrogen measured by the flow meter; the control module is electrically connected to the flameout detector to obtain the operating status of the engine measured by the flameout detector.

[0019] In one embodiment, the bottom of the carbon remover may also be provided with a mobile trailer platform having moving wheels and a handle.

[0020] In one embodiment, the vehicle is a diesel vehicle or a gasoline and diesel vehicle.

[0021] The carbon removal machine provided in at least one embodiment of the present application is a new energy mobile carbon removal machine product that uses green methanol as raw material and integrates reforming, hydrogen production, purification and carbon removal. It can solve the problems of heavy-duty diesel vehicles caused by engine carbon deposition, such as reduced vehicle power, increased fuel consumption, increased exhaust suspended particulate pollutant emissions, difficult cold starts, unstable idling, poor acceleration, and cylinder knock. In severe cases, it may cause interference between valve and piston movement, and cause serious leakage and cylinder pulling due to stuck and scratched cylinder walls. In the case of mainly removing carbon from diesel heavy trucks, it has obvious emission reduction and energy-saving effects. It can also be extended to the removal of carbon from gasoline and diesel generators.

[0022] The carbon removal machine provided in at least one embodiment of the present application can provide high-purity hydrogen carbon removal of more than 99.9% for heavy vehicles, with good combustion and carbon removal effect, no harmful impurities entering, and no damage to the engine. The heater, evaporator, reactor, purifier and other components in the methanol hydrogen reformer are modularly integrated, the heating curves of multiple components are synchronous and stable, the thermal balance effect is good, and the energy loss is small; in the internal balanced heating operation mode, only the fan, supply pump, valve, sensor and control module consume power, and the operating power consumption can be controlled at about 100W. The tail gas of the reformer is recycled as a heat source to maintain the endothermic reaction and the temperature of the reactor, without an external heat source; the heater has no direct contact with the air, and the front and rear inputs and exhaust are structurally isolated, which is safe and reliable, and the overall thermal efficiency of the system is high. In addition, the hydrogen purifier is small in size and suitable for the application of a mobile carbon removal machine for methanol hydrogen production and purification. Moreover, the single-machine hydrogen output is high, producing 75-1500 liters per minute. The decarbonization mode can be set according to small, medium and large engines with different horsepower, and a multi-condition automatic control system can be realized. According to engines with different displacements, the amount of hydrogen produced and the amount of hydrogen entering the engine can be automatically adjusted.

[0023] At least one embodiment of the present application provides a decarbonizer that combines hydrogen production and application. Hydrogen is produced and used immediately. The hydrogen production capacity can be adjusted as needed. It has strong adaptability and no inconvenience or risk of storing hydrogen. After the decarbonizer is shut down, methanol water automatically refluxes and the remaining reaction gas is self-processed, and the system is highly safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] Figure 1 is a schematic diagram of a carbon removal machine for a vehicle engine;

[0026] Figure 2 is a schematic diagram of the recombinator;

[0027] In the figure: 100 recombiner, 101 heater, 102 evaporator, 103 reactor, 104 hydrogen purifier, 105 inner shell, 106 outer shell, 107 first chamber, 108 second chamber; 200 carbon remover, 201 fan, 202 supply pump, 203 first three-way valve, 204 heat exchanger, 205 buffer tank, 206 control module, 207 second three-way valve, 208 hydrogen output pipe; 301 raw material section, 302 shut-off valve, 303 flow meter, 304 flameout detector, 305 mobile trailer platform, 306 exhaust gas detector. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0029] In the description of the present application, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the "front end" and "rear end" in the present application are mainly based on the transportation direction of the material, from the "front end" to the "rear end".

[0030] The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Principle of hydrogen decarbonization: During the intake stroke of a diesel / gasoline / diesel engine, atomized gas and air-hydrogen mixture enter the cylinder at the same time. After the compression stroke, the spark plug ignites. The combustion speed of hydrogen is much higher than that of atomized gasoline and diesel, that is, the combustion propagation speed is much higher than that of ordinary diesel mixture. Within a limited time, it promotes the combustion and cracking reactions of oil stains, carbon deposits, etc. in various components of the engine. After reaching the conditions for complete combustion, it is mainly converted into carbon dioxide and eliminated; thereby improving and maintaining the performance of the fuel engine and achieving the goals of energy saving and emission reduction.

[0033] This embodiment provides a decarbonizer for vehicle engines (hereinafter referred to as decarbonizer 200). The decarbonizer 200 is mainly used in diesel vehicle service stations, maintenance stations, fleet stations, transportation transfer stations, etc., and can especially provide decarbonization services for diesel engines or gasoline and diesel engines.

[0034] like Figure 1 As shown, the carbon removal machine 200 includes a raw material section 301 and a methanol hydrogen production recombinator 100 (hereinafter referred to as the recombinator 100). The raw material section 301 stores methanol water as a hydrogen production raw material; the recombinator 100 is connected to the raw material section 301, and is configured to prepare high-purity hydrogen from the methanol water from the raw material section 301; generally, the purity of the high-purity hydrogen is greater than 99.9%, for example, the volume percentage of hydrogen in the mixed gas is greater than 99.97%.

[0035] A supply pump 202 for providing power for the transportation of methanol water and a heat exchanger 204 are sequentially arranged between the raw material section 301 and the reformer 100 ; the heat exchanger 204 is configured to exchange heat between the methanol water before entering the reformer 100 and the high-purity hydrogen prepared by the reformer 100 .

[0036] A first three-way valve 203 is provided between the supply pump 202 and the heat exchanger 204, the inlet of which is connected to the outlet of the supply pump 202, and the outlet of which can be switched between the heat exchanger 204 and the raw material part 301. The first three-way valve 203 is configured to connect the supply pump 202 and the heat exchanger 204 in the working state; after the work is completed, it is switched to connect the supply pump 202 and the raw material part 301 (bypass) to recover methanol water.

[0037] As an independent module located in the carbon remover 200, the reformer 100 includes a heater 101, an evaporator 102, a reactor 103 and a hydrogen purifier 104. Among them:

[0038] The heater 101 is capable of generating heat so as to provide heat for the evaporator 102. The heater 101 is connected to a fan 201 outside the module to obtain air for combustion.

[0039] The evaporator 102 is adjacent to the heater 101 and connected to the raw material section 301. It is configured to receive heat from the heater 101 to heat and evaporate methanol water from the raw material section 301 into the reactor 103. The evaporator 102 may adopt a coil structure to facilitate heating and generating steam.

[0040] The reactor 103 is connected to the evaporator 102; the evaporator 102 and the reactor 103 are both located above the heater 101, and the evaporator 102 is located between the heater 101 and the reactor 103, so that the heater 101 can provide heat for both and is closer to the evaporator 102. The reactor 103 is configured to receive vaporized methanol water from the evaporator 102 and react to generate hydrogen-rich gas. Hydrogen-rich gas is a common term in the art, and here it mainly refers to the mixed gas after the reaction of the reactor 103, with a purity of approximately 60-80%, such as 70-80%, 75%, etc. In addition, a catalyst can also be set in the reactor 103 to accelerate the reaction. The overall reaction formula in the reactor 103 is: CH3OH+H2O→CO2+3H2.

[0041] The hydrogen purifier 104 is connected to the reactor 103, and is configured to receive the hydrogen-rich gas generated from the reactor 103, and purify it into high-purity hydrogen and discharge tail gas (generally containing combustible gases such as CO and CH4). The hydrogen purifier 104 is connected to the heat exchanger 204 on the one hand to provide it with high-purity hydrogen for heat exchange; on the other hand, it is connected to the heater 101 to supply the tail gas to the heater 101 as a heating fuel. This embodiment generates the heat required for reforming hydrogen production through a built-in heating reactor, and the operating power consumption can be controlled to only about 100W.

[0042] In order to implement the recombiner 100 as a standalone module, such as Figure 2 As shown, the reformer 100 also includes an inner shell 105 and an outer shell 106, both of which can be metal shells. Among them, a first chamber 107 is formed in the inner shell 105, which contains a heater 101, an evaporator 102, a reactor 103 and a hydrogen purifier 104. A second chamber 108 that can be filled with a heat insulation layer is formed between the inner shell 105 and the outer shell 106. The fan 201, the supply pump 202, the heat exchanger 204 and the buffer tank 205 are all located outside the outer shell 106. Such an arrangement can make full use of the heat of the reformer 100 in the inner shell 105, which is not easy to diffuse and reduces heat loss.

[0043] The first circuit of the heat exchanger 204 is respectively connected to the first three-way valve 203 and the evaporator 102, and the second circuit of the heat exchanger 204 is respectively connected to the hydrogen purifier 104 and the second three-way valve 207; the methanol water in the first circuit and the high-purity hydrogen in the second circuit are heat exchanged in the heat exchanger 204, so that the methanol water as a raw material is preheated and the high-purity hydrogen is cooled; the heat is rationally utilized to reduce energy consumption.

[0044] The decarbonizer 200 further includes the second three-way valve 207 and the buffer tank 205, wherein the inlet of the second three-way valve 207 is connected to the second line of the heat exchanger 204, and the outlet thereof can be switched between the buffer tank 205 and the heater 101. The second three-way valve 207 is configured to connect the second line (high-purity hydrogen) of the heat exchanger 204 and the buffer tank 205 in the working state, so as to cache the hydrogen used for decarbonization in the buffer tank 205 for use; after the work is completed, it is switched to connect the second line of the heat exchanger 204 and the heater 101 (bypass), so that the excess hydrogen in the pipeline enters the heater 101 for consumption, thereby ensuring that there is no residual gas in the reactor 103, the pipeline, etc., and increasing the safety performance.

[0045] The buffer tank 205 is used to store and buffer the high-purity hydrogen from the reactor 103 for use in carbon removal. The buffer tank 205 is connected to a hydrogen output pipe 208 to output hydrogen for carbon removal. The hydrogen output pipe 208 is provided with a shut-off valve 302 and a flow meter 303, which are respectively used to control the connection or disconnection of the hydrogen output pipe 208 and to measure the consumption of hydrogen for carbon removal. Furthermore, the buffer tank 205 is connected to the intake manifold of the vehicle engine through the hydrogen output pipe 208 to provide the vehicle with hydrogen for carbon removal. The shut-off valve 302 and the flow meter 303 are located between the buffer tank 205 and the vehicle engine.

[0046] The carbon removal machine 200 can also be equipped with a flameout detector 304 and an exhaust gas detector 306. The flameout detector 304 can be a vibration flameout detector, the main component of which is a vibration sensor, which can be placed on the engine of the vehicle to detect whether the vehicle is turned off before carbon removal to determine whether carbon removal can be started. The exhaust gas detector 306 can be a commercially available product, which can be configured at the exhaust emission of the vehicle to detect whether the exhaust gas after carbon removal meets the carbon removal requirements, and the carbon removal effect can be intuitively understood.

[0047] In some embodiments, the carbon remover 200 further includes a control module 206. The control module 206 is electrically connected to the blower 201 to control the start and stop of the blower 201. The control module 206 is electrically connected to the supply pump 202 to control the start and stop of the supply pump 202. The control module 206 is electrically connected to the first three-way valve 203 to control the switching of the first three-way valve 203. The control module 206 is electrically connected to the second three-way valve 207 to control the switching of the second three-way valve 207. The control module 206 is electrically connected to the shut-off valve 302 to control the opening and closing of the shut-off valve 302. The control module 206 is electrically connected to the flow meter 303 to obtain the flow data of hydrogen measured by the flow meter 303. The control module 206 is electrically connected to the flameout detector 304 to obtain the operating state of the engine measured by the flameout detector 304, such as whether it is flameout.

[0048] The control module 206 can use various processors that can meet the conditions, such as CPU, PLC, industrial computer, computer and other hardware, and store programs that can realize corresponding functions in the memory through programming, and execute these programs through the control module 206 to realize the various functions. This is a conventional control method that can be thought of, and it is also understandable to those skilled in the art. The carbon remover 200 can also be equipped with a display screen for touch screen operation or displaying relevant data of the carbon remover.

[0049] In addition, it is well known to those skilled in the art that the various components of the present application are connected by pipelines or lines to transport substances or signals.

[0050] The bottom of the carbon remover 200 can also be configured with a mobile trailer platform 305. The trailer platform 305 has moving wheels and handles, which can drive the carbon remover 200 to move anywhere, and has flexible movement and multi-scenario adaptability.

[0051] Next, the decarbonization method of the decarbonizer for vehicle engines according to the present embodiment will be described to further understand the present application.

[0052] (1) Preparation

[0053] When using the decarbonizer for the first time, first perform a warm-up operation on the decarbonizer;

[0054] Check the raw material pipeline and power connection, etc., start the decarbonizer to heat up and reach the temperature required for the reaction; enter the standby mode; there is no feed at this time;

[0055] The carbon removal machine in standby mode can quickly enter the carbon removal operation; if there is no carbon removal task for a long time (for example, more than 5 days), the standby mode can be released, the power of the carbon removal machine can be turned off, and it can be restarted before the next work.

[0056] (2) Carbon removal operation

[0057] After receiving the carbon removal operation, the carbon removal machine is towed to the vehicle carbon removal operation station and is ready;

[0058] The vehicle to be decarbonized is turned off, and the hydrogen output pipe 208 of the decarbonizer is connected to the intake manifold of the vehicle's engine and locked with a buckle; the exhaust gas detector 306 is connected to the exhaust gas outlet of the vehicle;

[0059] The vibration flameout detector 304 is fixed to the top of the engine to detect the running state of the engine; after the engine flameout, a signal is sent to the control module 206 to determine whether the engine decarbonization can be started;

[0060] Start the vehicle engine, in neutral idling, start the carbon remover 200 to produce hydrogen and remove carbon;

[0061] Specifically, after the carbon remover 200 is started, the water inlet pipeline of the first three-way valve 203 is opened, the return pipeline (bypass) is closed, and the supply pump 202 continuously extracts methanol water from the raw material part 301, and after being preheated by the heat exchanger 204, it enters the evaporator 102 of the reformer 100, and the methanol water is vaporized. At the same time, the fan 201 is started to provide air input for the heater 101 to ensure that the heater 101 provides a continuous heat source for the reformer 100. After the methanol water is vaporized in the evaporator 102, it enters the reactor 103, and under the action of the catalyst, a methanol reforming hydrogen production reaction occurs to produce hydrogen-rich gas with a hydrogen purity of about 75%. The main reaction formula is: CH3OH+H2O→CO2+3H2. The hydrogen-rich gas enters the hydrogen purifier 104 to produce high-purity hydrogen with a purity of 99.97%; after preheating the methanol water in the heat exchanger 204, the cooled high-purity hydrogen enters the buffer tank 205 through the second three-way valve 207, and then passes through the cut-off valve 302 and the flow meter 303, and reaches the engine's intake manifold through the hydrogen output pipe 208 to enter the engine for combustion. In this process, the tail gas of the hydrogen purifier 104, which generally includes combustible impurities such as CO, methane, and a small amount of hydrogen, is transported to the heater 101 through a pipeline for combustion or catalytic heating to ensure the heat supply in the reformer 100;

[0062] Add fuel in neutral every ten minutes to increase the engine speed to 2500RPM for about two minutes to help enhance the carbon deposit removal capability.

[0063] Under normal conditions, the carbon removal service is completed in about 30 minutes. After the exhaust gas is tested by the exhaust gas detector 306 and CO and NO compounds meet the standards, the carbon removal operation is stopped; if they do not meet the standards, the carbon removal machine is started for secondary carbon removal, and the cycle is repeated.

[0064] (3) Carbon removal completed

[0065] The control module 206 can be set to control the carbon remover 200 to stop automatically, the supply pump 202 to stop automatically, the bypass of the first three-way valve 203 to open, and the methanol water in the pipeline to flow back to the raw material part 301;

[0066] After the carbon remover 200 stops operating, the cut-off valve 302 is closed, and the bypass of the second three-way valve 207 is opened. The reaction gas generated by the methanol water retained in the reformer 100 enters the heater 101 through the bypass and is consumed, ensuring that there is no residual gas in the reactor and pipeline of the carbon remover;

[0067] After the recombiner 100 completely stops reacting, each valve returns to the closed state.

[0068] After the carbon removal operation is completed, the vehicle's engine is turned off, and the hydrogen output pipe 208, the flameout sensor 304 and the exhaust gas detector 306 are removed; the carbon removal machine 200 is towed away from the work station and the carbon removal machine is kept in standby mode; if there is no carbon removal operation for more than 5 days, the standby mode can be released, the power of the carbon removal machine can be turned off, and the carbon removal machine can be completely stopped.

[0069] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0070] The above embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present application can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present application, which should be included in the scope of the technical solution requested for protection in the present application.

Claims

1. A carbon remover for a vehicle engine, characterized in that: include: A raw material section, in which methanol water serving as a hydrogen production fuel is stored; A methanol-to-hydrogen recombinator is connected to the raw material unit; the methanol-to-hydrogen recombinator is configured to prepare high-purity hydrogen from methanol water from the raw material unit, and the purity of the high-purity hydrogen is greater than 99.9%; The supply pump is installed between the raw material section and the methanol hydrogen reformer to provide power for the transportation of methanol water; A heat exchanger configured to exchange heat between methanol water before entering the methanol-to-hydrogen reformer and high-purity hydrogen produced by the methanol-to-hydrogen reformer; A buffer tank is located at the rear end of the heat exchanger; the buffer tank is configured to store high-purity hydrogen after heat exchange; as well as The hydrogen output pipe is connected to the buffer tank so as to provide the hydrogen in the buffer tank to the engine of the vehicle.

2. The carbon remover for vehicle engine according to claim 1, characterized in that: The methanol-to-hydrogen reformer includes a heater, an evaporator, a reactor and a hydrogen purifier; wherein the heater is capable of generating heat; the evaporator is adjacent to the heater, the front end of the evaporator is connected to the raw material section, and the rear end of the evaporator is connected to the reactor; the evaporator is configured to receive heat from the heater to heat and evaporate the methanol water from the raw material section into the reactor; the front end of the reactor is connected to the evaporator, and the rear end of the reactor is connected to the hydrogen purifier; the reactor is configured to receive vaporized methanol water from the evaporator and react to generate hydrogen-rich gas; the hydrogen purifier is configured to receive the hydrogen-rich gas from the reactor, and purify it into high-purity hydrogen and discharge tail gas; the rear end of the hydrogen purifier is connected to the heat exchanger on the one hand to provide high-purity hydrogen for heat exchange, and is connected to the heater on the other hand to provide tail gas as fuel for the heater.

3. The carbon remover for vehicle engine according to claim 2, characterized in that: The methanol-to-hydrogen reformer is an independent module in the carbon removal machine, and also includes an inner shell and an outer shell; wherein a first chamber is formed in the inner shell, accommodating the heater, evaporator, reactor and hydrogen purifier; a second chamber filled with a heat insulation layer is formed between the inner shell and the outer shell; the raw material part, supply pump, heat exchanger and buffer tank are all located outside the outer shell; the heater is connected to the fan outside the outer shell to obtain air for combustion.

4. The carbon remover for a vehicle engine according to any one of claims 1 to 3, characterized in that: A first three-way valve is arranged between the supply pump and the heat exchanger; wherein, the inlet of the first three-way valve is connected to the outlet of the supply pump; the outlet of the first three-way valve can be switched between the heat exchanger and the raw material part; the first three-way valve is configured to: in a working state, connect the supply pump and the heat exchanger to provide raw materials for the methanol-to-hydrogen reformer; after the work is completed, switch to connect the supply pump and the raw material part to recover methanol water.

5. The carbon remover for vehicle engine according to claim 4, characterized in that: A second three-way valve is arranged between the heat exchanger and the buffer tank; wherein, the inlet of the second three-way valve is connected to the heat exchanger; the outlet of the second three-way valve can be switched and connected between the buffer tank and the heater of the methanol-to-hydrogen reformer; the second three-way valve is configured to connect the heat exchanger and the buffer tank in a working state so as to cache the high-purity hydrogen for decarbonization in the buffer tank; after the work is completed, it is switched to connect the heat exchanger and the heater so that the excess hydrogen enters the heater for consumption.

6. The carbon remover for vehicle engine according to claim 5, characterized in that: The hydrogen output pipe is provided with a cut-off valve for opening or closing the output of hydrogen, and a flow meter for monitoring the consumption of hydrogen in the hydrogen output pipe.

7. The carbon remover for vehicle engine according to claim 6, characterized in that: It is also equipped with a flameout detector and an exhaust gas detector; wherein the flameout detector can be placed on the engine of the vehicle to detect whether the vehicle is stalled before decarbonization; the exhaust gas detector can be configured at the exhaust emission of the vehicle to detect the decarbonization effect of the exhaust gas.

8. The carbon remover for vehicle engine according to claim 7, characterized in that: The decarbonizer also includes a control module; the control module is electrically connected to the fan to control the start and stop of the fan; the control module is electrically connected to the supply pump to control the start and stop of the supply pump; the control module is electrically connected to the first three-way valve to control the switching of the first three-way valve; the control module is electrically connected to the second three-way valve to control the switching of the second three-way valve; the control module is electrically connected to the cut-off valve to control the opening and closing of the cut-off valve; the control module is electrically connected to the flow meter to obtain the flow data of hydrogen measured by the flow meter; the control module is electrically connected to the flameout detector to obtain the operating status of the engine measured by the flameout detector.

9. The carbon remover for vehicle engine according to any one of claims 1-3, 5-8, characterized in that: The bottom of the carbon remover is provided with a mobile trailer platform, and the trailer platform has moving wheels and a handle.

10. The decarbonizing machine for vehicle engines according to any one of claims 1-3, 5-8, characterized in that: The vehicle is a diesel vehicle or a gasoline and diesel vehicle.

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