55 results about "Fuel gasification" patented technology

The invention relates to the technical field of fuel safety, in particular to an integrated design method for a three-dimensional simulation model of a skid-mounted oil station. The method comprises the following steps that a skid-mounted oil station structure drawing is obtained; constructing an oil station three-dimensional assembly according to a skid-mounted oil station structure drawing; virtual assembly is carried out based on the oil station three-dimensional assembly, and an oil station three-dimensional simulation model is generated; acquiring fuel oil data, transmitting the fuel oil data to the fuel station three-dimensional simulation model, and performing fuel oil flow simulation to generate fuel oil flow data; oil product backflow is detected based on the fuel oil flowing data, and oil product backflow data are obtained; according to the oil product backflow data, fuel oil pipeline cavitation detection is carried out, and fuel oil pipeline cavitation data are obtained; marking the cavitation position of the pipeline based on the cavitation data of the fuel pipeline, and continuously monitoring the thermal load of a fuel pipe body at the cavitation position of the pipeline; and evaluating the fuel gasification risk based on the thermal load of the fuel pipe body. Based on the fuel safety technology, the safety, the stability and the design optimization efficiency of the skid-mounted oil station are improved.

The invention discloses a coal and biomass material co-gasification device, and relates to the technical field of fuel gasification devices, the coal and biomass material co-gasification device comprises a fixed bed gasification furnace and a fluidized bed gasification furnace, the bottom of the fixed bed gasification furnace is in through connection with the top of the fluidized bed gasification furnace; a vibrating feeder, a vibrating sorting machine, a funnel, a material crusher, a stirrer and a preheater which are used for raw material treatment are arranged at the upper end of the fixed bed gasification furnace, the interior of the fluidized bed gasification furnace is divided into a circulating fluidized bed gasification part and a fixed bed gasification part, and the circulating fluidized bed gasification part is located at the top of the fluidized bed gasification furnace; the fluidized bed gasification furnace has the advantages of high efficiency, low pollution, stable operation and stable raw material supply, and solves the problems of screen mesh blockage, material adhesion and low carbon conversion rate when the traditional fixed bed and fluidized bed gasification furnace are used for treating coal and biomass mixed raw materials.

The present invention provides a composite gasification device based on a filtration combustion mode, belonging to the technical field of solid fuel gasification for producing synthesis gas. It solves the problems of low carbon conversion efficiency, high tar content, and low synthesis gas yield. It includes a gasifying agent inlet, a preheating section, a reaction section, a reforming section, a synthesis gas outlet, and a discharging section. The gasifying agent inlet is communicated with the preheating section. Both ends of the reaction section are respectively communicated with the preheating section and the reforming section. The synthesis gas outlet is communicated with the reforming section. The discharging section is communicated with the reaction section. Both the preheating section and the reforming section are composed of various forms of inert porous medium fillers. The internal of the porous medium packed bed has complex pore channels, which is beneficial to mass transfer and heat transfer. The porous medium can be composed of inert particles such as ceramsite or glass microspheres and similar substances, wire meshes, and foam ceramics, etc. It is mainly used for the efficient gasification of various solid fuels.

The application discloses a coal-based solid waste disposal system and method for chemical looping combustion coupled with lignite boiler peak shaving, and the system comprises an electrolytic water device, an air reactor, a fuel reactor, a gas mixer, a condenser, a semi-gasification stable combustion burner and a boiler body, etc.; the method utilizes the redundant power generation of wind power generation and photovoltaic power generation to electrolyze water in the electrolytic water device; H2 is introduced into the fuel reactor to react, so that the oxide carrier is reduced into a metal carrier, and water vapor is generated; the metal carrier in the air reactor is subjected to an oxidation reaction with air, so that the metal oxide is generated and a large amount of fuel is released; the gasification background gas is introduced into the air reactor to be preheated, and then is mixed with the water vapor generated in the fuel reactor, and finally the semi-coke powder in the semi-coke powder system is introduced into the semi-gasification stable combustion burner, and then is introduced into the furnace through the stable combustion burner nozzle to be stably combusted; part of the water vapor generated in the fuel reactor is introduced into the condenser to be condensed, so that condensed water is obtained.

1. The name of the design product: fire cover. 2. The use of the design product: used for plant oil stove fuel gasification fire cover. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention provides an engine device which can effectively vaporize low-GHG fuel from a liquid state to ensure combustion stability, wherein the low-GHG fuel discharges little greenhouse effect gas such as ammonia and methanol, while suppressing the use of external energy. An engine device (1) that drives an engine (2) by supplying a low GHG fuel having a small amount of global warming gas emission is provided with a liquid fuel container (30) as a reservoir in which a liquid fuel is stored, and the fuel supplied from the liquid fuel container (30) to the engine (2) is gasified by waste heat from the engine (2).

In various examples, the subject matter of this disclosure relates to a method and a system for reducing iron oxide to produce metallic iron. An example method includes: providing a fuel including at least one of bio-oil or fast pyrolysis biochar, feeding the fuel into a blast furnace containing iron oxide; gasifying the fuel to produce reducing gases; and reducing the iron oxide in the blast furnace using the reducing gases to produce metallic iron.

1. The name of the design product: dual fuel gasification furnace. 2. The use of the design product: dual fuel gasification furnace. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view.

The utility model relates to a kind of fuel gasification stove with flameout protection function, it includes furnace head, oil pump, oil inlet pipeline, igniter, exhaust fan, control panel and oil vaporizer, and is equipped with ignition needle and fire detector needle on furnace head, igniter is electrically connected with ignition needle, oil pump is located on oil inlet pipeline, one end of oil inlet pipeline is communicated with the oil inlet end of oil vaporizer, the steam outlet end of oil vaporizer is communicated with furnace head, heating body and temperature probe are equipped on oil vaporizer, control panel is electrically connected with oil pump, exhaust fan, oil vaporizer, igniter, water level probe, fire detector needle, heating body and temperature probe respectively.The utility model is inducted flame by fire detector needle, to realize flameout protection, ignition unsuccessful protection, the utility model is detected the temperature in oil vaporizer by temperature probe, to realize high temperature protection and low temperature protection.Due to the above scheme, the function of the utility model fuel gasification stove is more complete, safer and more convenient to use.

The application relates to the technical field of hypersonic aircrafts, and particularly discloses a heat protection and power generation integrated system and method based on a semi-open Rankine cycle, which comprises a water storage tank, a hydrogen storage tank, an electrolytic cell, a steam turbine, a heat exchanger, a hydrogen turbine and a combustion chamber. The system uses liquid water to absorb heat at the leading edge of the aircraft, vaporizes into water vapor to drive the steam turbine to generate power, realizes active heat protection and waste heat conversion; the water vapor after work exchanges heat with liquid hydrogen in the heat exchanger to condense, preheats the fuel while completing the Rankine cycle; the vaporized hydrogen drives the hydrogen turbine to generate power again, improving the power generation efficiency; the condensed water can be introduced into the electrolytic cell to be electrolyzed into hydrogen and oxygen, and the generated hydrogen directly supplements the fuel. The system realizes efficient heat protection, continuous power generation, in-situ production and supplement of fuel through structure coupling, and effectively reduces the mass of the homeward journey system by converting water into fuel in the middle and later stages of flight, thereby improving the endurance and high-altitude performance of the aircraft.

The utility model relates to an ignition, stable combustion and deep peak regulation technology of a coal-fired boiler, in particular to an ignition, stable combustion and deep peak regulation device for the coal-fired boiler through carbon-based fuel gasification synthesis gas. The device comprises a gasification furnace body, high-temperature synthesis gas dust removal equipment, an emergency emptying stop valve, a branch pipeline stop valve, a boiler synthesis gas burner and a power plant coal-fired boiler, the gasification furnace body is connected with the high-temperature synthesis gas dust removal equipment, the emergency emptying stop valve is arranged at the upper end of the high-temperature synthesis gas dust removal equipment, and the high-temperature synthesis gas dust removal equipment is connected with a boiler synthesis gas burner on a coal-fired boiler of a power plant through the branch pipeline stop valve. Synthesis gas generated by gasification of carbon-based fuel enters the boiler to be combusted for ignition, stable combustion and deep peak regulation of the coal-fired boiler, and the coal-fired boiler has the advantages of being high in reliability and good in operation economical efficiency.

The utility model relates to the technical field of biomass gasification furnaces, and discloses a biomass briquette gasification furnace which comprises a biomass gasification furnace main body, a steel wire mesh movably mounted at the bottom inside the biomass gasification furnace main body, a motor fixedly mounted inside the bottom of one side of the biomass gasification furnace main body, and a turntable fixedly mounted at the output end of the motor, a fixing block is fixedly installed on one side of the bottom of the steel wire mesh. Raw materials are placed at the top of the steel wire mesh for combustion, and when a large amount of raw material ash is generated at the top of the combustion and stacking of the raw materials, the output end of the motor drives the rotating disc to rotate, so that the connecting block reciprocates up and down at the bottom of the fixing block, and the steel wire mesh is driven to vibrate to enable the raw material ash on the surfaces of the raw materials to fall off; and the situation that the production efficiency of the gasification furnace is reduced due to the fact that a large amount of raw material ash is generated on the surfaces of the stacked raw materials after long-time combustion and the raw materials stacked inside are difficult to burn completely is avoided.

The present invention provides a SOFC stack and a method for starting and shutting down the same, including a heating module, a stack core, a reforming module, an exhaust gas treatment module, a cooling module, and a heat insulation module; the heating module is used to heat the stack core and the cathode gas; the cathode gas is fed into the stack core for cathode reaction; electrochemical reaction occurs in the stack core to output electric energy outward; the electrochemical reaction includes a cathode reaction and an anode reaction; cathode exhaust gas is generated after the cathode reaction, and the cathode exhaust gas supplies heat to the reforming module; the reforming module is used to gasify and reform the reforming fuel into hydrogen-rich gas; the hydrogen-rich gas is fed into the stack core for anode reaction; the exhaust gas treatment module is used to treat the cathode exhaust gas and the anode exhaust gas and supply heat outward; the cooling module is used to cool the cold end of the stack core; the heat insulation module is used to prevent heat dissipation inside the stack; the heating efficiency of the SOFC stack is improved, and the heat insulation effect is enhanced.

The invention relates to the technical field of biomass briquette combustion, and discloses a continuously-operating biomass briquette gasification combustor which comprises a bottom plate, the outer wall of the bottom plate is fixedly connected with a feeding seat, the inner wall of the bottom plate is fixedly connected with a first connecting ring, the inner wall of the first connecting ring is fixedly connected with a second connecting ring, and the inner wall of the second connecting ring is fixedly connected with the feeding seat. A first hollow column is fixedly connected to the top of the second connecting ring, a circular plate is fixedly connected to the outer wall of the first hollow column, a connecting annular groove is formed in the outer wall of the circular plate, and an auxiliary mechanism is rotationally connected to the inner wall of the connecting annular groove through a bearing. Fuel particles can be effectively prevented from being retained on the surface layer of a combustion area, the fuel particles are promoted to move downwards in order, the residual risk of the particles in a single combustion area is reduced, the problem that the combustion efficiency and the service life of equipment are affected due to long-term retention and adhesion of the particles is solved, and the running continuity and reliability of the combustor are improved.

The invention provides a pure gasification fine slag boiler profile and a working method thereof, belongs to the technical field of boilers, and solves the problems of environmental pollution and resource waste caused by gasification fine slag. Wherein the ignition burner and the water cooling air chamber are located below the hearth, the secondary air duct and the annular air bellow are used for providing secondary air for the hearth, the heat insulation separator is communicated with the hearth and the return feeder, the lower end of the return feeder is communicated with the lower end of the hearth, and an outlet flue of the heat insulation separator is communicated with the tail heat insulation furnace wall. One end of the heat insulation separator outlet flue is communicated with the upper end of the heat insulation separator, the other end of the heat insulation separator outlet flue is communicated with the upper end of the tail heat insulation furnace wall, and the high-temperature superheater, the medium-temperature superheater, the low-temperature superheater and the economizer are sequentially arranged in the tail heat insulation furnace wall from top to bottom. The air pre-heater outlet flue is arranged at the lower end of the tubular air pre-heater; and the fine slag feeding device is used for providing gasified fine slag for the hearth. The boiler profile can realize efficient and reliable combustion of gasified fine slag.

A method to improve the overall efficiency of carbon conversion within a gasification process of biomasses, wastes and / or waste derived fuel into syngas, where the produced syngas is further converted into chemicals characterized by the fact that a stream of pure C02 (equal to 5-20% of the produced C02 stream) is injected in the feeding system and, thus, in the gasification section wherein said biomasses and / or waste materials, preferably industrial or municipal wastes, are converted in a C0 / H2 rich mixture, or raw syngas, by means of gasification with oxygen at high temperature and at almost atmospheric pressure (0, 1-0, 5 barg) and wherein such pure carbon dioxide (C02 ) stream avoids any backflow from the conversion reactor to the feeding system and also the amount of carbon dioxide (C02 ) recycled to the gasificator reactor, is both one of the syngas components and also a reactant in the subsequent conversion of syngas in methanol or in methanol derived chemicals such as DME or SAF.

The utility model relates to the technical field of fuel gasification, in particular to fuel gasification equipment which comprises a gasification furnace body, a heat preservation assembly and an opening and closing assembly, the heat preservation assembly comprises a surrounding cover pipe and heat preservation cotton, and the top of the gasification furnace body is connected with a chimney through an opening; one side of the chimney is communicated with a gas conveying pipeline, the middle section of the gas conveying pipeline is connected with a filter screen through a flange, the opening and closing assembly comprises a first valve and a second valve, and one end of the gas conveying pipeline is connected with an exhaust fan through a flange; tar, smoke dust and the like are filtered through the filter screen, gas continues to be discharged to the other end of the draft fan through the gas conveying pipeline so that personnel can collect the gas through related tank bodies and the like, and when the filter screen needs to be detached and replaced in the later period, the first valve and the second valve can be closed to detach and replace the filter screen; therefore, pungent smell left in the gas pipeline is prevented from being filled in the air, and the environmental protection property is improved.

The utility model provides a high-temperature-resistant regulating valve. The high-temperature-resistant regulating valve comprises a valve body, a first screw hole, a first screw plug, a valve needle, a valve hole, a valve element, an external thread connecting cylinder, an oil inlet hole and a second screw plug. The valve body, the first screw plug, the valve needle, the second screw plug and other key components are made of high-temperature-resistant materials, the high-temperature-resistant capacity of the whole regulating valve is effectively improved, the regulating valve can stably operate under the high-temperature working condition, and the regulating valve is suitable for the high-temperature environment such as a fuel gasification furnace; heat generated in the working process of the regulating valve can be quickly dissipated, the temperature of the valve body is reduced, and the high-temperature resistance and stability of the regulating valve are further improved; by adjusting the rotation degree of the valve needle, the opening degree of the channel between the oil inlet hole and the valve hole can be accurately controlled, so that the fluid flow is accurately adjusted, the adjusting mode is simple and effective, the adjusting range is wide, and the flow control requirements under different working conditions can be met.

In various examples, the subject matter of this disclosure relates to a method and a system for reducing iron oxide to produce metallic iron. An example method includes: providing a fuel including at least one of bio-oil or fast pyrolysis biochar; feeding the fuel into a blast furnace containing iron oxide; gasifying the fuel to produce reducing gases; and reducing the iron oxide in the blast furnace using the reducing gases to produce metallic iron.

The present application belongs to the field of boiler control, and particularly relates to an automatic baling biomass boiler fuel gasification coupling control method. The method comprises: extracting raw material activity index and dynamically adjusting baling machine parameters to produce customized fuel; collecting multi-modal data of a gasification furnace and a boiler in real time and constructing a data vector; using a gasification combustion digital twin to calculate the nonlinear coupling relationship between fuel properties and the data vector to generate an optimal operating parameter combination; and using a model predictive control algorithm to issue coordinated control instructions to the fuel forming, gasification, distribution and heat exchange whole chain. The present application realizes source compensation for raw material fluctuations and accurate mapping of dynamic characteristics through whole-process closed-loop control, improves the system comprehensive energy efficiency and load tracking rate, optimizes the safety and environmental performance, and improves the intelligent level of the biomass boiler system.

The invention discloses a coal-based solid waste treatment system and method for coupling chemical looping combustion with peak regulation of a lignite boiler. The system comprises a water electrolysis device, an air reactor, a fuel reactor, a gas mixer, a condenser semi-gasification stable combustion burner, a boiler body and the like. According to the method, redundant generating capacity of wind power generation and photovoltaic power generation is utilized to electrolyze water in a water electrolysis device; h2 is introduced into the fuel reactor for reaction, the oxide carrier is reduced into a metal carrier, and water vapor is generated; a metal carrier in the air reactor is subjected to oxidation reaction with air to generate metal oxide and release a large amount of fuel; gasified background gas is fed into an air reactor for preheating and then is mixed with water vapor generated in a fuel reactor, and finally semi-coke powder in a semi-coke pulverizing system is fed into a semi-gasified stable-combustion combustor and then is fed into a hearth through a stable-combustion combustor nozzle for stable-combustion combustion; part of water vapor generated in the fuel reactor is introduced into a condenser for condensation, and condensate water and the like are obtained.

The utility model relates to fuel gasification equipment, which belongs to the technical field of fuel gasification and comprises a gasification tank body and a support frame fixedly connected outside the gasification tank body, and a quantitative feeding mechanism extending into the gasification tank body is arranged on one side of the gasification tank body. The quantitative feeding mechanism comprises a storage hopper fixedly connected to one side of the gasification tank body, the bottom of the storage hopper is fixedly connected with a feeding pipe extending into the gasification tank body, a raw material body is arranged in the storage hopper, and a driving motor is fixedly installed on the front face of the feeding pipe. According to the fuel gasification equipment, by arranging the storage hopper and the feeding pipe, a raw material body can be conveniently added into the gasification tank body, then the driving motor is arranged to drive the quantitative roller to rotate, by arranging the quantitative groove, the feeding amount of the raw material body can be controlled, then workers can conveniently adjust the feeding amount according to actual needs, and the practicability of the equipment is improved; and meanwhile, the fuel gasification efficiency can be improved.

To provide a monitoring system capable of measuring the concentration of hydrocarbons in a generated gas and determining whether or not dust is leaking from a dust collector with a simple configuration, and to provide a gasification facility including the monitoring system, a monitoring method, and a monitoring program.SOLUTION: A monitoring system 200 for a gasification facility including a dust collection device that collects soot and dust in a produced gas obtained by gasifying a carbon-containing fuel, the monitoring system including an ultraviolet light source 220 that irradiates the produced gas with ultraviolet light on a downstream side of the dust collection device in a direction in which the produced gas flows, a fluorescence detection unit 240 that detects fluorescence intensity caused by hydrocarbons in the produced gas, and a control device 250 that measures a concentration of the hydrocarbons in the produced gas on the basis of the fluorescence intensity detected by the fluorescence detection unit 240 and determines whether or not soot and dust are leaking from the dust collection device.SELECTED DRAWING: Figure 2

The following descriptions relate to a burner head (10) for a pressure gasifier burner system of a pressure gasifier, wherein the pressure gasifier is suitable for gasifying and producing synthesis gases from fuels with a high carbon content and high levels of volatile components, and wherein the burner head (10) is operable at temperatures above the melting point of the fuel ash. Furthermore, the following descriptions relate to a pressure gasifier burner system with such a burner head (10), a pressure gasifier, and a method for operating a burner head (10), a burner system, and a pressure gasifier.

The invention relates to the technical field of biomass energy thermochemical conversion, and discloses a system and method for cracking biomass liquid fuel through direct-current arc plasma, the system is characterized in that the feeding end of a plasma generating device is connected with an integrated atomization mixing device, and the integrated atomization mixing device is provided with two input ends; the plasma generating device is connected with the carrier gas assembly and the fuel supply assembly respectively, the plasma generating device is connected with the reaction assembly and used for cracking input fuel, a cracking output port of the reaction assembly is connected with a filtering and collecting assembly, and the plasma generating device is driven by the electric driving assembly. According to the system, liquid fuel is atomized into preheated micron-sized liquid drops by using the fuel supply assembly, so that the liquid fuel is quickly and fully cracked in a high-temperature environment of plasma in the reaction cavity, the gasification reaction rate of the biomass liquid fuel and the cracking gas yield are greatly improved, and the generation of coke and tar in the cracking process is effectively inhibited; therefore, efficient gasification of the biomass liquid fuel is realized.

This invention provides a biomass fuel gasifier, comprising a cylindrical furnace body, a feeding device, and a gas extraction device. The furnace body includes a combustion chamber, a gas purification chamber, and a tar processor. The tar processor is located within the gas purification chamber and includes a top ash outlet at its upper end, extending out of the furnace body. The top ash outlet is equipped with an openable and closable sealing cover. This invention, by providing a top ash outlet for the tar processor, enables immersion cleaning or brushing of the processor's pipes, improving cleaning convenience and reducing the risk of blockage. Placing the tar processor within the gas purification chamber reduces damage to the processor, extends its service life, and enhances the gasification effect on tar in the flue gas. This solution ensures effective biomass gasification and tar cracking in the flue gas, resulting in a pale blue or pale yellow flame with no black smoke, thus improving environmental protection.

A moving bed heat storage and supply gasification device comprises a cyclone burner, a heat storage body heating cavity, a heat storage body heat exchange cavity, a water cooling jacketed pipe, a heat preservation layer, a carbon dioxide storage tank, a moving bed gasification reactor, a washing device and a valve. The device aims to solve the problems that an existing device needs an additional air separation device, energy consumption of pure oxygen combustion is large, lump coal cost is high and gas purification is poor, two cavities are heated through high-temperature flue gas of a cyclone combustor, carbon dioxide is preheated by a heat exchange cavity of a heat accumulator to serve as a gasifying agent, exhaust of multiple components is purified through a washing device, one cavity is used, and the other cavity is standby, so that continuous heat supply is achieved. The method is suitable for gasification of low-cost fuel such as slack coal, and an efficient and low-cost gasification scheme is provided for gas production in the coal chemical industry.

The invention discloses a microwave-induced discharge plasma-driven coke-CO2 gasification device and a microwave-induced discharge plasma-driven coke-CO2 gasification method, relates to the technical field of coal clean conversion and plasma energy enhanced gasification, and aims to realize activation of CO2 and efficient gasification reaction of coke under medium and low temperature conditions. The device comprises a microwave generator, a microwave resonant cavity, a quartz gasification reactor, an induced discharge probe, a mode stirrer, a metal microwave wave gathering device and other core components, a standing wave electric field is formed in the cavity, low-temperature plasma is excited in situ by utilizing the electric field strengthening effect of the tip of the probe, and CO2 molecules are driven to be activated and ionized and participate in gasification reaction. According to the method provided by the invention, a pure CO2 atmosphere is constructed, the microwave power and reaction parameters are regulated in real time, the conversion rate of the coke within the medium temperature range of 500-800 DEG C is 85% or above, and the gasification temperature and energy consumption are remarkably reduced. The method can be widely applied to the fields of carbon-based fuel gasification, CO2 recycling and renewable energy thermal chemical utilization.

The invention discloses a solid fuel gasification furnace, and aims to solve the problem that in the prior art, volatile substances generated by heating solid fuel are insufficiently combusted at the bottom of a pot, and'black pot 'is easily generated. The technical problem is solved through the following technical scheme: a hearth is arranged in a furnace body; the furnace ring assembly is arranged at the top of the hearth; the furnace ring assembly comprises an infrared generation ring, a preheating air cavity and a heat preservation and insulation layer. The preheating air cavity is arranged on the outer side of the infrared generation ring. The heat preservation and insulation layer is arranged on the outer side of the preheating air cavity. A preheating air channel is arranged in the furnace body, the preheating air cavity is communicated with the outer side of the furnace body through the preheating air channel, and a plurality of preheating air outlets are formed in the side wall of the infrared generation ring in a penetrating mode. Air enters the furnace body from the preheating air channel, enters the preheating air cavity after being heated in the furnace body, and finally enters the inner side of the infrared generation ring from the preheating air outlet to participate in secondary combustion.

This invention discloses a liquid fuel vaporization and pressure stabilization device and an aero-engine incorporating the same. The device comprises an exhaust casing with an exhaust channel, a vaporizer arranged axially on the outer periphery of the exhaust casing, a gas collecting cylinder connected to the outer wall of the vaporizer and extending axially along the exhaust casing, and a pressure detector connected to the engine fuel control system. The vaporizer has a fuel inlet, and the gas collecting cylinder has a gas collecting chamber. The vaporizer communicates with the gas collecting chamber. The vaporizer heats and vaporizes the incoming liquid fuel under the influence of high-temperature exhaust gas in the exhaust channel, forming gaseous fuel which is then discharged into the gas collecting chamber. A fuel outlet is also provided on the wall of the gas collecting chamber. The pressure detector is located within the gas collecting chamber to detect the pressure inside the chamber, thereby enabling the engine fuel control system to control the flow rate of liquid fuel entering the vaporizer and consequently regulate the pressure of the gaseous fuel within the gas collecting chamber. This invention allows the device to be used in aero-engines, further improving the combustion efficiency of liquid fuel in aero-engines.