981 results about "Liquid fuel" patented technology

To provide a bi-fuel vehicle capable of preventing a driver from feeling bothered even in a situation where restart occurs frequently.SOLUTION: A bi-fuel vehicle is equipped with an engine 2 to which one of two types of fuel: CNG, which is gaseous fuel; and gasoline, which is liquid fuel, selected and supplied as fuel to be injected into a combustion chamber of each cylinder, and comprises an ECU 8 that controls an idling stop function that stops the engine 2 when a preset automatic stop condition is established and restarts the engine 2 when the preset restart condition is established. The ECU 8 selects gasoline as the fuel to be injected into the combustion chamber of each cylinder of the engine 2 when it is predicted that automatic stopping and restarting of the engine 2 may be repeated a predetermined number of times or more within a predetermined time.SELECTED DRAWING: Figure 1

The invention provides a method for constructing a differential diffusion small flame model for buoyancy-driven plume, and the method is applied and expanded to a pool fire combustion process in the field of fire safety. According to the method, the buoyancy driven plume is solved by using the small flame model, the solving number of component equations of the buoyancy plume is greatly reduced through coordinate conversion dimensionality reduction processing, and the main characteristics of the buoyancy plume can be reproduced with relatively high precision and a faster calculation rate. According to the method, high-precision numerical solution of buoyancy plume is realized, and pool fire combustion of gas fuel and liquid fuel and numerical solution of all plume driven by buoyancy can be processed.

A nuclear reactor is discussed herein. In some examples, the nuclear reactor may comprise an inner-core region, including liquid fuel, coolant / moderator, and a hydrogen vapor space, an out-of-core region surrounding the inner-core region, the out-of-core region including, an inner reflector adjacent to the inner-core region, the inner reflector including a first irradiation facility, and an outer reflector adjacent to the inner reflector, the outer reflector including a second irradiation facility.

The invention provides an automobile power system using hydrazine and compatible with various liquid fuels. The system comprises a fuel storage subsystem, an oil tank self-repairing subsystem, a fuel conveying subsystem, an oil injection heating subsystem, a fuel combustion subsystem, a piston kinetic energy conversion subsystem, a mechanical-electric energy conversion subsystem, an inversion conversion subsystem, a super capacitor subsystem, a multi-pole variable motor subsystem, an in-vehicle air conditioner subsystem and a foaming tire subsystem. The control subsystem, the mechanical lubrication subsystem, the braking energy recovery subsystem, the waste gas treatment subsystem, the waste heat recovery subsystem, the safety protection subsystem and the parking subsystem are used for forming a complete oil-electricity hybrid automobile system; the efficient, safe, comfortable, environment-friendly and intelligent automobile power system is innovatively constructed, so that the requirements of various vehicle power systems are met.

The invention belongs to the technical field of energy conversion equipment and solid resource pyrolysis conversion utilization, and discloses continuous replacement type pyrolysis equipment and a pyrolysis method thereof. The continuous replacement type pyrolysis equipment comprises a feeding system, a microwave generating system is arranged on one side of the feeding system, a carbon residue collecting system is arranged at the bottom of the feeding system, a continuous replacement system is installed in the microwave generating system, and a reaction system is installed in the continuous replacement system. One side, far away from the feeding system, of the reaction system is connected with a product collecting system; through the synergistic effect of microwave pyrolysis and dynamic replacement design, pyrolysis of crushed materials and tar cracking are integrated into a continuous process, efficient energy conversion is achieved, high-added-value products such as liquid fuel / chemicals and pyrolysis carbon residues are finally produced, and reduction, harmlessness and resourceful treatment of solid resources is promoted.

The invention provides a liquid oxygen methane engine test bed composed of a multifunctional test system. The test bed comprises a gas path system, a liquid path system and a test station. Wherein the gas path system and the liquid path system are connected through a pipeline for gas supply, and the liquid path system is connected with the test run station and used for providing liquid fuel needed by testing for the test run station. The liquid path system comprises a low-pressure liquid path module and a high-pressure liquid path module. And the low-pressure liquid path module and the high-pressure liquid path module are respectively connected with a test run station. The test bed is composed of a set of gas path system, two sets of liquid path systems and three test stations. The two sets of liquid path systems jointly adopt one set of gas path system for gas supply, so that medium conveying can be carried out on the three test run stations according to requirements, the test run platform can meet the gas distribution requirements of engines of different models, meanwhile, the resource sharing of test equipment is improved, the total cost of equipment construction and maintenance is greatly reduced, and the working efficiency is improved. And the engine testing efficiency is improved.

According to the dual-fuel afterburner without the inner duct stabilizer, an oil injection rod and an air injection rod are arranged in a supporting plate with a cavity structure, an oil injection nozzle and an air injection nozzle which are communicated are formed in the wall face of the supporting plate, and cooperative combustion of gas fuel and liquid fuel is achieved. According to the afterburner, a stable ignition source is provided through the characteristic that gas fuel is easy to burn, efficient and stable combustion is achieved in cooperation with fuel injection, and therefore a traditional inner duct stabilizer is omitted, the weight of the afterburner is remarkably reduced, and weight reduction and performance optimization of the afterburner are achieved. Evaporative flame stabilizers distributed in the circumferential direction are arranged in the outer duct area to achieve stable combustion of airflow in the outer duct, and flame stability and cross flame performance are guaranteed in cooperation with the supporting plates of the inner duct and fuel gas sprayed out of the supporting plates.

To provide a control device and a control method for internal combustion engine which can perform control such that amounts of discharge of nitrogen oxide and ammonia satisfy limit values even when an environment condition changes.SOLUTION: A control device for an internal combustion engine includes: a nitrogen oxide acquiring unit for acquiring an amount of nitrogen oxide in exhaust gas discharged from the internal combustion engine; an ammonia amount acquiring unit for acquiring an amount of ammonia in the exhaust gas discharged from the internal combustion engine; and a flow rate control unit which gives a flow adjustment instruction to adjust a flow rate of combustion gas directed to the internal combustion engine, to a flow rate adjustment device which adjusts a flow rate of combustion gas introduced into the internal combustion engine, such that the nitrogen oxide amount acquired by the nitrogen oxide amount acquiring unit and the ammonia amount acquired by the ammonia amount acquiring unit do not exceed threshold values in a state where the internal combustion engine is being operated in a mixed combustion operation mode using both liquid fuel and ammonia gas as fuel.SELECTED DRAWING: Figure 1

An integrated process having an ultra-low GHG footprint for converting Camelina based biomass to liquid fuels and lubricant base stocks in which a Camelina based biomass feed is converted to liquids by a multistep hydroprocessing method and the liquids are upgraded to produce premium hydrocarbon fuels and lubricants.

The present invention discloses a coaxial staged burner for a low-pollution combustion chamber of a gas-liquid dual-fuel gas turbine, which relates to the technical field of gas turbine combustion chambers and solves the problem that existing coaxial staged burners are difficult to achieve stable combustion using a single liquid or gas fuel under any load working conditions. The coaxial staged burner comprises: a mounting flange, a main fuel sleeve and a swirler; a fuel supply interface is provided on the mounting flange; four-stage fuel sleeves are coaxially nested in the main fuel sleeve; the swirler consists of a central duty class, a first-stage premixing stage, a second-stage premixing stage, a first-stage hub and a second-stage hub; when liquid fuel works alone, the fuel enters the swirl channel through the duty class liquid fuel nozzle and the second-stage blade liquid fuel hole to achieve premixing and evaporation processes; when gas fuel works alone, the fuel enters the swirl channel through the first-stage blade fuel hole and the second-stage blade gas fuel hole to be mixed.

An engine device supplies a low GHG fuel having low greenhouse gas emissions to drive an engine. The engine device 1 includes a liquid fuel tank, which is a storage unit that stores a fuel in a liquid state. Waste heat from the engine is utilized to vaporize the fuel supplied from the liquid fuel tank to the engine.

A gas turbine engine, comprising: a compressor section, a combustion section, and a turbine section in a serial flow arrangement, with the combustion section comprising: a combustor liner that at least partially defines a combustion chamber; and a fuel nozzle assembly, comprising: a liquid fuel supply to supply a liquid fuel; a hydrogen fuel supply to supply a gaseous hydrogen fuel; and a fuel nozzle body defining a fuel nozzle assembly centerline, the fuel nozzle body fluidly coupled with the liquid fuel supply and the hydrogen fuel supply to provide the liquid fuel and the gaseous hydrogen fuel to the combustion chamber.

Internal combustion engine (1) with at least one combustion chamber (2), at least one prechamber (3) for the at least one combustion chamber (2) and an intake system (4), wherein the intake system (4) comprises : - a liquid fuel supply (9) configured to provide a liquid fuel, - an air-fuel-mixer (10) mixing air with liquid fuel from the liquid fuel supply (9) and providing an air-fuel- mixture, - a combustion chamber intake manifold (7) leading into the at least one combustion chamber (2) and - a prechamber intake manifold (8) leading into the at least one prechamber (3), wherein the air-fuel-mixer (10) is part of the prechamber intake manifold (8) for admixing the liquid fuel to the air in the prechamber intake manifold (8).

An ammonia mixed combustion engine 1 that operates by burning ammonia and a hydrocarbon liquid fuel causes a control unit 2 to implement at least one of decrease or increase in an air excess ratio in fuel, advance or retard in injection timing of the liquid fuel, and decrease or increase in injection pressure of the liquid fuel in accordance with increase or decrease in a mixed fuel burning ratio of ammonia in the fuel.

A liquid fuel combustible gas concentration alarm testing device comprises a fuel shell and is characterized in that the fuel shell is cylindrical, a sealing bottom is arranged at one end of the fuel shell, a gas guide pipe is arranged at the center in the fuel shell, a plurality of gas guide holes are evenly distributed in the outer wall of the gas guide pipe, absorbent cotton is arranged in an annular cavity between the gas guide pipe and the fuel shell, and the absorbent cotton is arranged in the annular cavity. The filter is used for adsorbing liquid fuel; a blocking felt is fixed at the upper end of the gas guide pipe in the fuel shell, and vent holes are uniformly distributed in the blocking felt; the upper end of the fuel shell is detachably connected with an upper cover, an inner cavity of the upper cover forms a mixed gas chamber, and the side wall of the upper cover is connected with a test connector; an inflator is coaxially connected to the lower end of the fuel shell, and an inner barrel of the inflator is detachably connected with the sealing bottom at one end of the fuel shell, communicates with an inner hole of the air guide pipe and is used for generating compressed air to enter the air guide pipe. According to the device, combustible gas generated by liquid fuel can be used as signal gas, the liquid fuel volatilization speed is increased, and the testing efficiency is improved.

The utility model discloses a lighter using a porous glass oil twist, which comprises a base and an upper cover, a fuel bin used for containing liquid fuel is arranged in the base, the oil twist is arranged in the fuel bin, a through hole corresponding to the oil twist is arranged at the upper end of the base, the upper end of the oil twist extends out of the upper portion of the base through the through hole, and the oil twist comprises a strip-shaped base body made of glass materials. A plurality of micron-sized hole channels are densely formed in the base body in the extending direction of the base body in a penetrating mode, and fuel in the fuel bin rises to the upper end of the oil twist through the hole channels; an ignition mechanism is arranged at the upper end of the base and located beside the upper end of the oil twist. Therefore, the oil twist made of quartz glass or high borosilicate glass is installed on the base to form the lighter, the oil twist is provided with a plurality of micron-sized pore channels and has high temperature resistance and good durability, and the pore channel pore diameter, porosity, outer diameter, length and the like of the oil twist can be designed according to actual application requirements so as to meet the requirement for conveying flow of various kinds of fuel. The application range is wide.

According to the warm air control system suitable for new energy vehicle type waste heat utilization and the new energy vehicle, the waste heat controller is arranged to be coordinated with the warm air control device, and waste heat of the heat dissipation component is conveyed to warm air in the vehicle through a water way at a proper time by setting a waste heat utilization program; and meanwhile, according to the actual water temperature state, heat is supplemented through the liquid fuel oil heater or the PTC electric heater. Waste heat of the heat dissipation component is reasonably utilized, and electric energy consumed by the vehicle for obtaining heat is reduced.

The utility model belongs to the field of hypersonic propulsion, particularly relates to a preheated liquid fuel single droplet generation system under a high-speed incoming flow condition, and aims to solve the problem that in the prior art, a system capable of illustrating different broken forms of preheated liquid fuel single droplets and a droplet breaking kinetic model under the high-speed incoming flow condition is lacked. The kerosene instillation test bench comprises a test bench, a high-speed incoming flow generation system and a kerosene instillation controller, the high-speed incoming flow generation system and the kerosene instillation controller are both fixedly arranged on the test bench, and the input end of the high-speed incoming flow generation system is communicated with the output end of the kerosene instillation controller. According to the method, different broken forms of a single droplet of the preheated liquid fuel and a droplet breaking kinetic model under the high-speed incoming flow condition are clarified, the understanding of the physical process of secondary atomization of transverse injection of different preheated liquid fuels under the high-speed incoming flow condition can be deepened, and meanwhile, a reference is provided for engineering application of an engine injection scheme.

A gas turbine engine, comprising: a compressor section, combustion section, and turbine section in serial flow arrangement, with the combustion section comprising: a combustor liner that at least partially defines a combustion chamber; and a fuel nozzle assembly, comprising: a liquid fuel supply to supply a liquid fuel; a hydrogen fuel supply to supply a gaseous hydrogen fuel; and a fuel nozzle body fluidly coupled with the liquid fuel supply and the hydrogen fuel supply to provide the liquid fuel and the gaseous hydrogen fuel to the combustion chamber.

A fuel can includes a can body, the can body contains liquid fuel and a wick with its lower end immersed in the liquid fuel, and a top cover is provided at a top of the can body. The top cover includes a ring-pull cap and a sealing cap, the ring-pull cap consists of an outer ring and a tear-off piece, the outer ring is connected to an upper opening of the can body in a sealing manner, and the sealing cap is buckled at a top end of the outer ring; a tray is provided at an upper end of the can body, and a periphery of the tray is connected to an inner wall of the can body in a sealing manner, and at least one fixing mouth for fixing the upper end of the wick provided in a middle of the tray.

A liquid fuel production system including: a gas-adsorbing / desorbing portion; a heating medium-supplying portion configured to supply, to the gas-adsorbing / desorbing portion, a heating medium for heating the gas-adsorbing / desorbing portion; a liquid fuel-synthesizing portion including a first gas flow path storing a catalyst that advances a conversion reaction from a raw material gas to a liquid fuel, and a second gas flow path through which a temperature-controlling gas that controls a temperature of the first gas flow path is flowed, the liquid fuel-synthesizing portion being configured to flow a first outflow gas out of the first gas flow path, and to flow a second outflow gas out of the second gas flow path; and a heat exchanger configured to perform heat exchange between the first outflow gas and the heating medium to heat the heating medium. The first outflow gas contains a condensable gas.

The invention discloses a liquid fuel pressure testing and damage monitoring method for a composite material pressure vessel, and the method carries out the system analysis of the pressure change of the composite material pressure vessel in the liquid fuel filling and pressurization process. Distributed optical fiber sensors and strain gauges are arranged in a stress concentration area, and a time control method and a pressure control method are adopted for real-time monitoring in the two stages of liquid fuel injection and pressurization respectively, so that strain and temperature distribution conditions are accurately captured; and the total leakage rate of the container is detected by combining a packaging method with a helium mass spectrum technology, so that the sealing performance and the structural integrity of the container are evaluated. The numerical simulation and experimental detection combined method provided by the invention provides a brand new thought for performance evaluation and safety monitoring of the composite material pressure vessel under extreme working conditions.

The invention discloses a direct carbon emission determination method for mixed combustion of fossil fuel and biomass fuel, and relates to the technical field of carbon emission, the method comprises the following steps: determining a mixed combustion mode; the multi-fuel combustion mode comprises solid and solid fuel multi-fuel combustion, solid and liquid fuel multi-fuel combustion, solid and gas fuel multi-fuel combustion, liquid and liquid fuel multi-fuel combustion, liquid and gas fuel multi-fuel combustion and gas and gas fuel multi-fuel combustion; based on the multi-fuel combustion mode, fuel consumption and an emission factor of fuel combustion are obtained, and based on the fuel consumption and the emission factor of fuel combustion, direct carbon emission is obtained through calculation; or the flue gas amount, the volume fraction of CO2 in the dry smoke and the multifuel combustion conversion coefficient are obtained, and the direct carbon emission is calculated based on the flue gas amount, the volume fraction of CO2 in the dry smoke and the multifuel combustion conversion coefficient. According to the method, carbon emission generated by combustion of the biomass fuel can be distinguished, and the carbon reduction effect of the co-combustion biomass fuel can be reasonably and accurately evaluated.

The invention discloses a porous medium sweating and cooling combustion chamber based on a ceramic matrix composite material, and relates to the technical fields of gas turbines, new energy and the like. In order to solve the problem of combustion instability such as combustion oscillation of a traditional gas turbine combustion chamber, a ceramic-based porous medium combustion chamber structure is adopted, liquid fuel infiltrates from the outer wall face of a porous medium and is evaporated and gasified on the inner wall, and then combustion occurs. The gasification reaction of the liquid fuel in the porous medium and on the wall surface can take away a large amount of heat, so that the effects of heat insulation, heat protection and wall surface cooling are achieved, and the combustion chamber can be protected from thermal damage. On the other hand, traditional jet flow or rotational flow combustion is replaced by wall face evaporation combustion, and combustion oscillation caused by uneven mixing or jet flow is avoided.

The present invention relates to a method for catalytic cracking production of biomass liquid fuel, and the method is as follows: Take MCM-48 mesoporous molecular sieve and calcine it in a solution impregnated with cobalt salt and metal borate to obtain a molecular sieve catalyst. Take lignin raw material and sugar raw material, dry them, and then carry out temperature-raising microwave cracking in a cracking reaction fluidized bed. The oil and gas are further catalytically cracked by the molecular sieve catalyst, and the oil liquid is recovered by condensation. The oil liquid, hydrogen-supplying mixed solvent and Ru / C catalyst are subjected to hydrodeoxygenation, and centrifuged for supercritical extraction and upgrading. The material at the top of the extraction tower enters a first-stage separation tower and a second-stage separation tower under reduced pressure for continuous reduced-pressure separation to obtain the finished product of biomass liquid fuel. The modified MCM-48 molecular sieve catalyst catalytically cracks biomass lignin raw material and sugar raw material by a two-step method, strengthens the deoxygenation reaction, and then undergoes supercritical extraction and upgrading and reduced-pressure separation, reducing the reaction temperature and acid value of the biomass liquid fuel, and improving the liquid-gas conversion rate, high-carbon-number oil liquid yield and product calorific value.

The vaporizing combustion head belongs to the components of liquid fuel combustion equipment. It includes a combustion cylinder, and a sleeve is sleeved outside the combustion cylinder. Both ends of the sleeve are hermetically and fixedly connected to the opposite ends on the combustion cylinder. An annular gas-liquid chamber is provided between the combustion cylinder and the sleeve. A liquid injection pipe is connected to the lower part at the rear end of the gas-liquid chamber, and a gas-liquid outlet pipe is connected to the upper part at the front end of the gas-liquid chamber. A jet pipe is provided at the central part inside the combustion cylinder. The front end of the jet pipe is connected to the gas-liquid outlet pipe, and a nozzle is installed at the rear end. A plurality of spray holes are evenly distributed along the circumference of the nozzle. A plurality of heat absorption plates are evenly distributed along the circumference of the jet pipe. One end of each heat absorption plate faces the jet pipe and there is a gap between it and the jet pipe, and the other end is fixedly connected to the inner wall of the combustion cylinder. This vaporizing combustion head can increase the combustion temperature of clean fuel, improve the utilization rate of clean fuel, reduce the heat dissipation of clean fuel, and has remarkable energy-saving and environmental protection effects.

The utility model discloses a fuel cabin harmful gas recovery processing device which comprises a machine box, the machine box is connected with a discharge port of a fuel cabin through a connecting pipe, the interior of the machine box is divided into a gas-liquid separation chamber and a filtering chamber, the gas-liquid separation chamber is located at the front end of the filtering chamber, and a filtering module is arranged in the filtering chamber. Gas with pressure in the fuel cabin enters the case through the connecting pipe, sequentially passes through the gas-liquid separation chamber and the filtering chamber, and is discharged from a gas outlet in the rear end of the filtering chamber; a plurality of partition plates are installed in the gas-liquid separation chamber and divide the interior of the gas-liquid separation chamber into gas channels, and a plurality of baffle plates are arranged on the inner walls of the gas channels in a staggered mode. According to the device, gas mixed with liquid fuel is guided into the case by utilizing positive pressure in the fuel cabin for gas-liquid separation and adsorption filtration, so that the problems that harmful gas is directly discharged into air to pollute the environment, and time is wasted due to the fact that an operator stops working when the gas is discharged are solved.

The invention belongs to the technical field of biomass fuel oil, and particularly relates to a biomass-based liquid fuel oil preparation method which comprises the following steps: mechanical pulverization, enzymolysis reaction, catalytic pyrolysis, hydrogenation upgrading, solid-liquid separation and distillation refining. Crop straw is used as a raw material and is mixed with a compound enzyme preparation, so that macromolecules such as cellulose are degraded into micromolecular saccharides; carrying out catalytic pyrolysis, and converting the product into pyrolytic oil by accurately controlling the reaction conditions under the action of a catalyst; in the preparation process, the catalyst can reduce the pyrolysis temperature, inhibit the generation of nitrogen oxides and improve the oxidation resistance stability of the fuel oil, the compound enzyme preparation is mild in reaction and low in energy consumption, and all the steps synergistically optimize the physicochemical properties of the fuel oil, so that the prepared biomass-based liquid fuel oil has a high calorific value and high combustion efficiency.

The utility model relates to an MTO (Methanol To Olefins) concentrated water treatment device, which comprises a circulating liquid phase hydrogenation unit and a dehydration unit, aldehyde and ketone components in MTO concentrated water are converted into mixed alcohol through circulating liquid phase hydrogenation, and most of water in the mixed alcohol is removed through flash evaporation degassing, azeotropic distillation and zeolite membrane dehydration treatment. According to the MTO concentrated water treatment device, a mixed alcohol product with low water content (about 2wt%) and waste water with low alcohol content (less than 0.2 wt%) are obtained, the technical index of the obtained mixed alcohol product is higher than the national standard of alcohol-based liquid fuel GB16663-1996, and ethanol, isopropanol and 2-butanol products can be obtained through further separation. The additional value is also improved, and the purposes of improving the quality and improving the efficiency are achieved.

The invention discloses a rotating detonation afterburner based on centrifugal nozzle discrete injection, and belongs to the technical field of detonation propulsion. The combustion chamber comprises a gas collecting cavity, an injection unit, a centrifugal nozzle, an outer ring and an inner column, wherein an annular detonation combustion chamber is formed between the inner wall surface of the outer ring and the outer wall surface of the inner column. The centrifugal nozzles are uniformly arranged at the intersection of the gas collection cavity and the injection unit in the circumferential direction to realize primary atomization of the fuel oil; the air is accelerated by the injection unit from the air collection cavity and then is mixed with the atomized fuel oil, secondary atomization is achieved, the particle size of liquid drops is remarkably reduced, and the fuel activity and mixing uniformity are improved. The injection unit adopts a Laval nozzle profile, air is accelerated to supersonic speed in the injection unit, and pressure of a combustion chamber is prevented from being transmitted forwards. The rotary detonation engine is suitable for the high-temperature low-oxygen environment, supports the annular combustion chamber configuration and the empty cylinder combustion chamber configuration, can achieve stable rotary detonation detonation and propagation of liquid fuel and air, and provides technical support for engineering application of the rotary detonation engine.