497 results about "Methanol fuel" patented technology

The invention relates to the technical field of ship fuel supply system control, and discloses a double-lug C-type LNG fuel cabin and methanol fuel self-adaptive switching control system which comprises a fuel state sensing module, a switching logic decision module, an execution mechanism control module, a safety redundancy guarantee module and a state feedback recording module. The fuel state sensing module is used for collecting and normalizing fuel parameters and mechanism operation state data; the switching logic decision module constructs a model to simulate switching dynamic characteristics and mechanism response characteristics, and performs parameter adaptation; the execution mechanism control module constructs an algorithm to calculate a switching pressure threshold value, a flow matching value and a valve group action time sequence; the safety redundancy guarantee module evaluates the switching safety; and the state feedback recording module performs secondary evaluation in combination with the environment working condition when the risk exists. According to the system, self-adaptive switching of LNG and methanol fuel is achieved, and switching accuracy, system stability and safety are improved.

The invention relates to the technical field of power supply systems, in particular to a distributed micro-grid power station system based on methanol fuel and a control method thereof.The distributed micro-grid power station system comprises a plurality of methanol generator sets arranged in parallel and an intelligent energy storage system, and the methanol generator sets are used for supplying power to loads; the intelligent energy storage system and the methanol generator set are connected in parallel through a bus, and the micro-grid control system controls the intelligent energy storage system to store redundant electric energy when the power demand is in the valley; and controlling the intelligent energy storage system to release electric energy so as to balance load fluctuation in a power demand peak. Complementation is formed through the methanol generator set and the energy storage system, the methanol generator set provides steady-state power, the energy storage system bears transient power to compensate the sudden power increasing gap of the methanol generator set, and the problems that the power of the methanol generator set cannot keep up due to the fact that the instantaneous power demand of loads such as a drilling platform is too large, and the energy consumption is low are solved. And the impact load is difficult to deal with independently.

The invention relates to the technical field of methanol combustion optimization, in particular to a methanol fuel combustion multi-target collaborative optimization method and a self-adaptive energy consumption regulation and control system, and solves the problem of balance between model precision and real-time optimization efficiency. The method comprises the following steps: constructing a special digital twinborn model, integrating a parameterized chemical reaction dynamic sub-model, a calibration interface dynamically coupled with real-time in-cylinder pressure data and a flow field simulation module, and continuously and dynamically updating; parallel simulation control parameter combination is carried out by using the dynamic model, and multi-target performance including at least two items of heat efficiency, NOx emission and combustion stability is predicted; outputting an optimization parameter set through Pareto frontier analysis of a multi-objective optimization algorithm; and finally, combining the parameter set with the real-time state of the model to select a control parameter to adjust the operation of the equipment, thereby realizing multi-target collaborative optimization and self-adaptive energy consumption regulation and control. According to the method, the system working condition adaptability, the multi-target optimization fineness and the energy consumption regulation and control intelligent level are improved.

The invention discloses a comprehensive control system and method for carbon emission of a methanol dual-fuel power ship. The method comprises the following steps: analyzing carbon emission characteristics at different moments by collecting and acquiring sensor data in real time; solving based on the constructed carbon emission optimization model in combination with a particle swarm algorithm to obtain the optimal ship navigational speed, adsorbent circulation rate and methanol fuel injection pressure corresponding to the minimum carbon emission of the methanol dual-fuel power ship; cO2 in tail gas is captured in real time through the ship carbon capture unit, the circulation rate of an adsorbent is adjusted in time according to optimization information of the ship navigation optimization control unit, the circulation efficiency of the adsorbent is calculated according to the carbon emission amount, the adsorbent is updated or replaced in time, and the comprehensive control process of the ship carbon emission is comprehensively evaluated. And comprehensive control of ship carbon emission is realized according to the comprehensive evaluation result. The problem of poor carbon emission control effect caused by insufficient cooperative control of a methanol dual-fuel power ship carbon capture device and a power system is solved.

The utility model discloses a methanol fuel supply system of a ship dual-fuel generator, which comprises a methanol fuel supply main pipeline, the methanol fuel supply main pipeline comprises an input pipeline and an FVT input pipeline, and a booster pump, a safety relief valve, a heat exchange system and a filter are sequentially arranged between the input pipeline and the FVT input pipeline. According to the utility model, a high-integration and compact skid-mounted design is adopted, the insufficiency of the ship space is fully considered, and under the condition that the original ship space is utilized, the methanol fuel which is free of impurities and meets the standard can be continuously and stably supplied to the FVT; and a large number of safety measures are designed, so that leakage and seepage of methanol can be effectively handled, and major harm to personnel health and driving safety caused by methanol volatilization is prevented.

The invention discloses a dual-fuel engine combustion method based on internal and external cooperative injection of a methanol engine, and belongs to the field of methanol fuel engines. The combustion method is realized on the basis of combustion of a diesel / methanol dual-fuel engine with internal and external cooperative injection of a methanol engine, a combustion chamber is formed by a cylinder cover, a cylinder and a piston, an internal and external concentric needle valve oil injector and an in-cylinder direct injection methanol injector are mounted on the cylinder cover, and a methanol port injector is mounted on an intake manifold; the high-reaction-activity diesel oil adopts a double direct injection technology; the low-reactivity methanol fuel adopts an in-cylinder high-low pressure injection and port fuel injection technology, the injection pressure, the injection timing and the injection frequency of the in-cylinder methanol injector are controlled, the gas distribution phase and the valve motion law are adjusted according to the operation condition of the engine, and mixed gas concentration layering of different gradients is formed. The ratio, the injection rule and the injection timing of the diesel oil and the methanol fuel can be flexibly adjusted, and stable operation of multi-mode combustion and high-efficiency clean combustion of the engine is achieved.

The invention discloses a methanol fuel ship hybrid power system coupled with carbon dioxide in-situ capture and utilization. The methanol fuel ship hybrid power system comprises an SOFC / GT system, a supercritical carbon dioxide cycle power generation system, an organic Rankine cycle power generation system and a carbon dioxide in-situ utilization system. Exhaust gas of a gas turbine in the SOFC / GT system serves as a heat source to be sequentially used for heating cycle working media of the supercritical carbon dioxide cycle power generation system and the organic Rankine cycle power generation system and then enters the carbon dioxide in-situ utilization system. Exhaust gas received by the carbon dioxide in-situ utilization system is condensed through a condenser to separate H2O and then enters a cathode of the porous solid electrolytic cell, the cathode comprises a KOH solution and an anion exchange membrane, an anode comprises water and a cation exchange membrane, an electrode catalyst is bismuth oxide, anode exhaust gas enters the SOFC / GT system, and formic acid discharged by a middle interlayer enters a formic acid storage tank. According to the invention, the carbon dioxide in the waste gas is captured in situ on the methanol fuel ship to generate a high-added-value product, and the energy of a power system is comprehensively utilized.

The utility model provides a marine methanol fuel regulation and control system which comprises a supply device used for outputting methanol to an engine; the monitoring device is connected with the supply device and is used for acquiring the pressure in the supply device; the purging device is connected with the supply device and is used for purging the methanol in the supply device; the releasing device is connected with the purging device and is used for receiving and releasing the methanol discharged by the purging device; and the pneumatic device is connected with the supply device, the monitoring device, the purging device and the relief device and used for controlling opening and closing of the supply device, the purging device and the relief device according to the pressure obtained by the monitoring device. According to the marine methanol fuel regulation and control system, methanol fuel with appropriate pressure and flow can be provided for equipment such as a high-pressure methanol dual-fuel medium-speed engine, meanwhile, the pneumatic device can achieve internal control of the system, and related functions are completed.

The invention discloses a method for preparing a methanol fuel cell anode catalyst by doping a modified multi-walled carbon nanotube carrier. The method comprises the following steps: 1) acidizing an unmodified multi-walled carbon nanotube; (2) preparing the cerium oxide doped modified multi-walled carbon nanotube; and 3) preparing the cerium oxide doped modified multi-walled carbon nanotube carrier loaded PtFe bimetallic alloy catalyst. According to the method disclosed by the invention, the MWCNTs are induced by doping CeO2 to generate more oxygen vacancy defects, so that anchoring of more active sites of the PtFe alloy is facilitated, and MOR is promoted to improve the activity of the catalyst; the stable Ce < 4 + > can deform the surface structure of Pt, so that the binding bond energy of COads and-OH is stronger, and an anti-poisoning effect is achieved; the introduced Fe element and Pt have metal electronegativity difference, so that the adsorption bond energy of formic acid, formaldehyde and carbon monoxide intermediates generated by gradual dehydrogenation of Pt and methanol can be weakened, and the anti-toxicity effect is achieved; and the PtFe alloy and the CeO2 / MWCNTs are in synergistic interaction, so that the stability of the catalyst can be enhanced.

The invention relates to the technical field of process control, in particular to an in-cylinder direct injection methanol generator combustion system control method based on multi-objective optimization, which comprises the following steps: acquiring multi-source sensor data of a methanol generator, performing feature extraction and evaluation on the multi-source sensor data, and generating a control weight distribution matrix; performing weighted fusion by using the control weight distribution matrix to obtain a fusion control vector; the method comprises the following steps: constructing an in-cylinder process control model, adaptively adjusting model parameters in combination with physicochemical characteristics of methanol fuel and in-cylinder combustion characteristics, comprehensively evaluating energy conversion efficiency, emission level and operation stability by adopting a multi-objective optimization algorithm based on the process control model and in combination with real-time working condition data, and carrying out iterative search on a Pareto optimal solution set. Dynamically generating adaptive control parameters; and generating a control instruction according to the self-adaptive control parameters, and adjusting the operation parameters of the methanol generator in real time. Accurate control over the combustion system is achieved by dynamically adjusting the control parameters of the methanol generator.

The invention discloses a methanol fuel filling detection and alarm system for a vehicle, and particularly relates to the technical field of data acquisition and correction, comprising a data acquisition module for acquiring environmental data and sensor data in real time; the fluctuation analysis module analyzes data fluctuation and determines whether to activate an evaluation mechanism; the feature evaluation module performs environmental adaptability and compensation correction evaluation when the evaluation mechanism is activated; the decision classification module inputs an evaluation result into a machine learning model and divides job types; the alarm module gives an alarm when the height interference operation occurs; the switching optimization module adjusts a compensation model according to the interference level to ensure the filling precision and stability; according to the method, environment adaptability evaluation and compensation correction evaluation are combined, so that the system can evaluate and reflect the condition in the filling process in time when the environment condition changes, the response capability to the environment change is enhanced, the compensation coefficient can be automatically adjusted under the condition that the adaptability of the fixed compensation model is insufficient, and the compensation efficiency is improved. And the accuracy of sampling data in the filling process is ensured.

The invention belongs to the technical field of fuel cells, and particularly relates to a high-temperature methanol reforming fuel cell system for realizing carbon cycle and an operation process. The system comprises an electric pile, a methanol steam reforming hydrogen production reactor, a carbon dioxide hydrogenation methanol production reactor and an electrolyzed water module, hydrogen prepared by the methanol steam reforming hydrogen production reactor enters an anode of the galvanic pile through a pipeline, a cathode of the galvanic pile is supplied by an air pump, and the hydrogen and oxygen are subjected to electrochemical reaction in the galvanic pile to realize external power supply; liquid water recovered from the electric pile tail gas is introduced into the water electrolysis module, and water electrolysis is performed to generate hydrogen; carbon dioxide in the stack tail gas and hydrogen generated by the water electrolysis module enter the carbon dioxide hydrogenation methanol preparation reactor through the gas inlet pipeline to prepare methanol. According to the invention, the circulation of carbon in the high-temperature methanol fuel cell system is realized, the emission of carbon dioxide is reduced, the circulation of hydrogen and oxygen is realized, and the energy utilization efficiency of the system is jointly improved through the circulation of carbon, hydrogen and oxygen.

The invention discloses a methanol engine fuel supply system and a control method. According to the system, an integrated fuel supply structure is adopted, and preheating of methanol fuel is achieved through cooperative work of an electronic methanol pump, a methanol combustion heater, an electronic water pump and a methanol guide rail. The innovation points are as follows: 1) the engine and the heater share a methanol box, a methanol coarse filter, an electronic methanol pump and a methanol fine filter; (2) a methanol combustion heater heats cooling liquid through methanol combustion, and the cooling liquid exchanges heat with methanol fuel through a methanol guide rail; and 3) an intelligent control strategy: when the system automatically judges that the starting mode and the starting condition do not meet the conventional starting mode, automatically entering a cold starting mode and preheating the methanol fuel, displaying the engine starting mode through a signal lamp mode, intelligently judging the engine starting state, and intelligently starting the methanol fuel under the condition that a driver does not start the engine for a long time. The methanol fuel temperature can be maintained through a control program, and the cold start state of the engine is kept.

The utility model relates to a system for reducing carbon dioxide emission in a coking production process. The system comprises a coke oven heating system, a flue gas desulfurization and denitrification system, a CO2 absorption and analysis system, a methanol synthesis system, a wind power / photovoltaic power generation system, an energy storage system, a water electrolysis hydrogen production system, a hydrogen storage system and a methanol storage system. According to the device, the emission of coke oven flue gas CO2 to the atmosphere can be effectively reduced, the CO2 in the coke oven flue gas can be captured and converted into a green methanol fuel, and the CO2 generated by combustion is not discharged when the green methanol fuel is used as a heating fuel of a coke oven, so that the cyclic utilization and green development of the CO2 are realized.

The invention relates to the technical field of fuel supply systems, in particular to a fuel supply device and an engine system. The fuel supply device comprises a methanol fuel line and a gasoline fuel line, the gasoline fuel line comprises a gasoline tank, a gasoline pump and a first common rail pipe which are communicated in sequence, and the methanol fuel line comprises a methanol tank, a methanol pump and a second common rail pipe which are communicated in sequence; the fuel supply device comprises a first three-way valve, a second three-way valve, a third three-way valve, a pressure sensor and a control unit, the first three-way valve is arranged between the methanol tank and the methanol pump, the second three-way valve is arranged between the gasoline tank and the gasoline pump, the first three-way valve is connected with the second three-way valve, and the third three-way valve is arranged between the gasoline pump and the second common rail pipe; the pressure sensor detects the pressure value in the second common rail pipe and is in signal connection with the control unit, and the control unit controls opening and closing of the first three-way valve, the second three-way valve and the third three-way valve according to the pressure value so that when the methanol pump breaks down, the gasoline pump can replace the methanol pump to work.

This invention relates to a methanol fuel injector for an engine, comprising an injector body, a solenoid valve, a needle valve rod, a needle valve spring, and a needle valve. The solenoid valve is disposed on the top of the injector body. The solenoid valve includes a valve body, an electromagnet, and a solenoid valve spring. A control oil accumulator chamber is formed between the valve body and the needle valve spring. A control oil inlet is provided on one side of the injector body, communicating with the control oil accumulator chamber. A low-pressure chamber is formed between the valve body and the injector body. A control oil return port is provided on one side of the injector body, communicating with the low-pressure chamber. A methanol inlet passage is formed between the needle valve rod and the injector body. A methanol fuel accumulator chamber is formed between the needle valve and the injector body. A methanol inlet and return port is provided on one side of the injector body, communicating with the methanol inlet passage. This invention solves the problem of rapid wear of the control valve and effectively controls the upward leakage of methanol by introducing a piston structure.

Disclosed in the present invention is a methanol engine. The methanol engine comprises a methanol fuel system, a compression-ignition engine and an electronic control unit, wherein on the basis of a collected operating condition, the electronic control unit controls the methanol fuel system to inject fuel into a cylinder of the compression-ignition engine. The methanol engine is characterized by further comprising a temperature-controllable hot-surface combustion-supporting system in communication connection with the electronic control unit, wherein the hot-surface combustion-supporting system heats methanol sprayed into the cylinder and adjusts a heating temperature on the basis of the operating condition. The present invention has the advantages of performing autonomous temperature measurement and accurate temperature control, being unaffected by operating conditions and environmental changes, having a long service life, being less prone to aging, etc.; the present invention fills in the gaps of reliable ignition and running in stable operating conditions where existing methanol engines cannot use 100% of methanol fuel; moreover, 30-50% of fuel costs are reduced, and the heat efficiency reaches up to 47% or more; and the emission of a pure methanol automobile is free of soot, such that the emission of NOx is reduced by 45%. Further provided in the present invention is a control method for a methanol engine.

The invention provides an energy-saving type energy storage power generation device based on methanol fuel, belongs to the technical field of methanol fuel power generation, and solves the technical problems that an existing methanol fuel power generation device is slow in ignition, energy cannot be efficiently utilized, the module integration efficiency is low and the like. Comprising a container, a heat exchange gasifier, a heat exchange heater, a methanol reforming fuel cell module, a methanol storage tank, a gasoline storage tank, a methanol fuel generator assembly, two cell modules and two attenuators are arranged in the container, and a water tank is arranged at the upper end of the methanol storage tank; material conveying metering pumps are arranged between the gasoline storage tank and the methanol fuel generator assembly and between the water tank and the heat exchange vaporizer, a material conveying metering pump is arranged between the methanol storage tank and the heat exchange heater, and a silencer, an engine heat dissipation system and a tail gas treatment assembly are arranged at the upper end of the container. The modular container design facilitates transportation and rapid deployment, is efficient, flexible, energy-saving and environment-friendly, and is provided with a multi-stage tail gas treatment and noise reduction system to ensure environment-friendly and low-noise operation.

The invention relates to a methanol injection control device and method for a methanol dual-fuel engine, a methanol injector is connected with an air inlet channel of an air cylinder and a methanol fuel pipe, and a methanol mass flow meter is arranged at the feeding end of the methanol fuel pipe and used for monitoring the methanol consumption of the air cylinder of the engine in real time; the plurality of exhaust temperature sensors are correspondingly arranged in exhaust branch pipes of the cylinders respectively; the controller is respectively connected with the methanol injector, the mass flow meter and the exhaust temperature sensor, the methanol injector is controlled by the controller, and the opening and closing time of the methanol injector is accurately controlled according to the rotating speed, the load and the exhaust temperature signal of the engine, so that the accurate control on the methanol injection quantity of each cylinder is realized. The flow change of each ejector is detected through the methanol flow meter and the exhaust temperature sensor, the ejection parameters are adjusted, the problem that preset ejection parameters are not matched due to performance degradation after long-term operation of the ejectors is solved, and the technical effect that the ejection parameters are adjusted in a self-adaptive mode based on the technical states of the ejectors is achieved.

The present invention provides a device and method for controlling the intake air temperature of a methanol compression ignition engine, belonging to the field of engine technology. The control device includes: an intercooler disposed on an intercooler circuit, the intercooler circuit being provided with a first valve; an intercooler bypass branch being provided with a second valve; an EGR cooler disposed on the EGR circuit, the EGR circuit being provided with a third valve and a fifth valve; an EGR bypass branch being provided with a fourth valve; and a controller for controlling one of the first and second valves to open and the other to close under cold start conditions or preset low-load conditions, adjusting the opening of the fourth valve based on an intake air temperature target value, and controlling the third and fifth valves to close. By providing an intercooler bypass, the present invention solves the problem that existing methanol compression ignition engines cannot achieve stable cold start ignition, sustained stable ignition, and stable combustion when burning pure methanol fuel in a low-temperature environment.

The utility model belongs to the technical field of marine equipment, and discloses a methanol fuel supply cabin which comprises a main cabin body, a backflow buffer tank and a backflow buffer container, the main cabin body is communicated with a supply pipe, the supply pipe is communicated with marine methanol supply equipment, a first switch valve is arranged on the supply pipe, the backflow buffer tank is arranged in the main cabin body, and the backflow buffer container is arranged in the main cabin body. The reflux buffer tank is communicated with a reflux pipe, the reflux pipe is communicated with marine methanol supply equipment, a plurality of overflowing holes are formed in the reflux buffer tank, and the reflux buffer container is arranged in the main cabin body, is positioned below the reflux buffer tank and is used for receiving a mixed solution of methanol and oil flowing out of the reflux buffer tank; and an overflow port communicated with the interior of the main cabin body is formed above the backflow buffer container. According to the methanol fuel supply cabin, residual methanol fuel liquid in the marine methanol supply equipment can be recycled after a ship is stopped or before the ship is restarted, the recycling process is smooth, splashing is effectively prevented, and oil in the recycled methanol fuel liquid can be effectively separated.

The invention relates to the technical field of methyl alcohol fuel injection system injectors, in particular to a high-pressure-difference methyl alcohol injector for a ship engine, which comprises a gland, an electromagnetic valve assembly, a shell, an ejector rod, a spring, a range limiting disc, a valve body, a valve core bushing, an orifice plate and a valve seat. According to the methanol injector, the fuel inlet is laterally arranged, and the overall flow direction of fuel is side-in and bottom-out, so that the leakage phenomenon possibly caused by insufficient coaxiality of external pipe joints in a conventional fuel jacking installation mode is avoided, and the sealing of an engine cannot be influenced even under severe working conditions such as continuous vibration; according to the methanol injector, methanol supply pressure (hydraulic pressure) is used for assisting in opening of the valve element of the methanol injector, compared with an injector with a conventional direct-drive electromagnetic valve opening valve element, the structure can achieve opening of the methanol injector only through smaller electromagnetic force and lower power consumption, and higher methanol injection pressure can be achieved after the spring and the supply pressure are accurately matched; and more efficient atomization can be realized.

The utility model relates to the technical field of ships, and provides a methanol isolation cabin and a ship, which comprise a shell, a gas injection assembly and a gas exchange assembly. Wherein the methanol fuel cabin is wrapped with the shell, and the shell and a shell of the methanol fuel cabin are arranged in a spaced mode to form an isolation space; the gas injection assembly comprises a first pipeline, one end of the first pipeline is inserted into the isolation space, and inert gas can be selectively introduced into the isolation space; the ventilation assembly comprises a second pipeline and a third pipeline, the second pipeline and the third pipeline both communicate with the isolation space, the second pipeline can selectively communicate with the indoor environment and the outdoor environment of the isolation space, and the third pipeline can be selectively connected with any one of the breather valve and the first air pipe head. Through the arrangement, the use efficiency of the inert gas can be improved, and the safety of the methanol isolation cabin is improved.

The invention relates to the field of power and energy engineering, in particular to a methanol-diesel dual-fuel internal mixing type fuel injector capable of being independently controlled. In order to overcome the defects that in the prior art, a dual-fuel injection system is complex in structure, the size of an oil injector is large, a cylinder cover is difficult to install, the fuel premixing capacity is poor, and injection control is not flexible, the technical scheme is that the methanol-diesel oil dual-fuel internal mixing type oil injector capable of being independently controlled comprises an oil injector shell; the fuel injector shell is provided with a methanol fuel inlet, a diesel fuel inlet, a fuel injection hole as well as a methanol oil way and a diesel oil way which are respectively connected with the methanol fuel inlet and the diesel fuel inlet; a methanol control assembly, a diesel oil control assembly, a pressure control chamber, a ball valve, a needle valve and a premixing pressure cavity are arranged in the oil injector, injection of methanol and injection of diesel oil can be controlled respectively, and mixed injection of two kinds of fuel can be achieved in the premixing pressure cavity. The methanol-diesel oil dual-fuel efficient mixed injection system is suitable for modification work of an engine oil injection system needing to achieve methanol-diesel oil dual-fuel efficient mixed injection and precise control in the fields of ship power, heavy vehicles, engineering machinery and the like.

The invention discloses a fuel treatment system of a V-shaped methanol fuel engine for a ship. The fuel treatment system comprises a split-flow conveying module, a fuel supply module, a fuel injection module, a leakage collection module, a leakage alarm module, a nitrogen purging module and a forced exhaust module. The fuel supply modules are divided into a column A and a column B, the split-flow conveying module conveys fuel to the column A and the column B of the fuel supply modules, and the columns of the fuel supply modules are connected through pipelines; each fuel supply module is connected with the multiple fuel injection modules and used for supplying methanol fuel in the main pipeline to the fuel injection modules to complete fuel conveying; according to the fuel treatment system of the V-shaped methanol fuel engine for the ship, the functions of stable-pressure supply of the V-shaped methanol fuel engine, safety protection of key leakage parts, monitoring and treatment of gas-liquid two-state leaked fuel, fuel emptying in the processes of shutdown maintenance and the like are achieved, safe use of fuel in the whole use process of the engine is achieved, and personnel safety is guaranteed.

The invention relates to the technical field of engine starting, and provides a cold start auxiliary system of a methanol engine, a control method of the cold start auxiliary system and related equipment. The cold start auxiliary system of the methanol engine comprises an air inlet heater which is assembled on the inner wall of an air inlet pipeline of the methanol engine and used for heating air in the air inlet pipeline; the spark plug heater is assembled on the outer wall of a spark plug of the methanol engine and used for heating the spark plug; the nozzle heater is assembled on the outer wall of a nozzle of the methanol engine and used for heating methanol fuel flowing through the nozzle; the air inlet temperature sensor is assembled on the inner wall of an air inlet pipeline of the methanol engine and is used for detecting the temperature of air in the air inlet pipeline; the control unit is in communication connection with the air inlet heater, the spark plug heater, the nozzle heater and the air inlet temperature sensor and used for controlling the air inlet heater, the spark plug heater and the nozzle heater according to the temperature of cooling liquid of the methanol engine.

The invention discloses a methanol fuel liquid supply device and a debugging method, the methanol fuel liquid supply device comprises a methanol fuel cabin and a methanol fuel liquid supply unit, the methanol fuel cabin is used for storing methanol; the methanol fuel liquid supply unit comprises a liquid inlet pipeline as well as a first control valve, a pressure boosting and stabilizing assembly and a second control valve which are sequentially communicated in the liquid inlet direction of the liquid inlet pipeline, the liquid inlet pipeline is connected with the methanol fuel cabin, and the pressure boosting and stabilizing assembly sequentially comprises a first boosting device, an air pressure buffer device and a second boosting device in the liquid inlet direction. According to the methanol fuel liquid supply device, by arranging the pressure boosting and stabilizing assembly, stable liquid supply of methanol fuel can be rapidly achieved, and the debugging time is saved. According to the debugging method, the methanol fuel liquid supply device on the ship is debugged in the mooring stage, rapid debugging can be achieved through the adopted debugging method, the wharf mooring test period is greatly shortened, the mooring period can be shortened by 4-5 days, and the expenditure proportion is reduced by about 20%.

The utility model discloses a marine methanol fuel storage device, which relates to the technical field of methanol storage, and specifically comprises a methanol storage device, the methanol storage device is provided with a nitrogen sealing and ventilating structure, and the nitrogen sealing and ventilating structure comprises a conventional working condition pressure control structure and an emergency working condition pressure control structure; the conventional working condition pressure control structure comprises a nitrogen sealing structure and a nitrogen unloading structure, and the emergency working condition pressure control structure comprises a rupture disk ventilation structure and a manual emergency unloading structure; the nitrogen sealing structure takes external nitrogen as a nitrogen source, and the opening and closing of the nitrogen sealing valve are correspondingly adjusted according to the pressure of the methanol storage device through the nitrogen sealing valve, so that the nitrogen is automatically supplied to the methanol storage device. According to the marine methanol fuel storage device, on the basis of a conventional methanol storage system, a nitrogen sealing and ventilation structure is additionally arranged, in the emergency situation, automatic pressure relief of the methanol storage device can be achieved, and the stability and safety of the methanol storage device are improved.

The invention provides a high-efficiency and low-energy-consumption carbon capture system used before combustion of an LNG (Liquefied Natural Gas) or methanol fuel ship, which comprises an air separation device, a gas generator, a shift reactor, an on-board boiler, an absorption tower, a heat exchange system, a desorption tower, a CO2 storage tank, a hydrogen fuel cell, a waste heat recovery device, a steam turbine and a condenser, a membrane separation module is arranged at the top or the upper half part of the absorption tower, is connected with the absorption tower body through a pipeline and is used for realizing separation and purification of hydrogen. According to the system, on one hand, energy consumption can be reduced through effective waste heat management, and on the other hand, CO2 and H2 are effectively separated through a separation and purification technology, so that high-purity CO2 and H2 are obtained and are conveniently stored and supplied to a hydrogen fuel cell.

A methanol engine starting method, relating to the technical field of automobiles. The starting method is applied to a heating device. The heating device heats, by igniting methanol fuel, a methanol engine connected to the heating device. The starting method comprises: measuring the methanol engine to obtain a first engine water temperature of the methanol engine, and determining whether the first engine water temperature is less than a first temperature threshold value; if it is determined that the first engine water temperature is less than the first temperature threshold value, heating the methanol engine, and measuring the methanol engine to obtain a second engine water temperature of the methanol engine; and when the second engine water temperature is greater than or equal to a second temperature threshold value, controlling the methanol engine to inject methanol fuel to complete starting. The present application further relates to a methanol engine starting apparatus, a heating device, and a computer readable storage medium.