2190 results about "Fuel oil" patented technology

The invention belongs to the technical field of aircraft control, relates to an aircraft gravity center real-time balancing method and system based on dynamic parameter fusion, and aims to solve the problems of insufficient real-time performance, accuracy and self-adaptability of a gravity center balancing method under complex flight conditions in the prior art. The method comprises the steps that real-time parameters are obtained, and the real-time gravity center position is calculated; if the real-time gravity center position is not within the preset range, calculating a first inertia moment and a first additional moment caused by fuel density change and a second inertia moment and a second additional moment caused by aeroelastic deformation; performing inertia moment correction based on the first inertia moment and the second inertia moment; additional moment correction is carried out based on the first additional moment, the second additional moment and the real-time pitching inertia moment; when the real-time gravity center position is within the preset range, gravity center balancing is completed. The fuel oil density and aeroelastic parameters are estimated in real time through a self-adaptive control algorithm, rudder deflection and fuel oil distribution are cooperatively adjusted, and the problem of center-of-gravity shift under complex disturbance can be effectively solved.

The invention belongs to the technical field of ship fuel consumption prediction and big data analysis, and relates to an operating ship fuel consumption prediction method based on a deep learning model. The method comprises the following steps: 1, synchronously acquiring multi-source data from a ship automatic identification system, a cabin monitoring system and an ERA5 meteorological database, and preprocessing the multi-source data; step 2, inputting the preprocessed data into a pre-trained CNN-BiLSTM-Attention model to carry out ship fuel consumption prediction; wherein the CNN-BiLSTM-Attention model is composed of a convolutional neural network, a bidirectional long and short term memory network and a time attention module; the model adopts a composite loss function based on navigational speed-power-fuel oil physical constraint. The method is more excellent in the aspects of prediction precision, robustness and fitting effect. Compared with the prior art, the method has higher accuracy and reliability in the aspect of ship fuel consumption prediction.

The invention discloses a dynamic and steady state characteristic evaluation method for a main fuel oil system of an aero-engine, which is used for carrying out systematic evaluation on dynamic and steady state performance of the main fuel oil system in different design stages. Respectively establishing differential evaluation mechanisms of three stages of design scheme demonstration, principle prototype development and product shaping and batch production; multi-dimensional evaluation of system response characteristics, control performance and robustness is realized by constructing a nonlinear system model and a linearized frequency domain model and combining typical working condition simulation and a principle prototype test; in the batch production stage, a standardized input working condition and a simplified index system are adopted, and batch production prototype performance consistency analysis and rapid quality judgment are achieved. According to the method, systematic evaluation of the aero-engine main fuel system in the full design stage can be achieved, a comprehensive evaluation system combining a model and a test is constructed, the design efficiency and reliability are improved, and the evaluation precision and credibility are improved.

The invention discloses a double-valve heterogeneous fuel regulator, an aero-engine and a control valve switching method.The double-valve heterogeneous fuel regulator comprises an electro-hydraulic servo valve set, and the electro-hydraulic servo valve set comprises a main control electro-hydraulic servo valve, a standby electro-hydraulic servo valve, a conversion valve and a conversion electromagnetic valve; the conversion electromagnetic valve is used for controlling the inlet end of the conversion valve to be connected with a master control electro-hydraulic servo valve or a standby electro-hydraulic servo valve in a switchable mode, and the internal structure of the standby electro-hydraulic servo valve is different from the internal structure of the master control electro-hydraulic servo valve. The size of a fuel oil flow channel in the standby electro-hydraulic servo valve is larger than that of a fuel oil flow channel in the master control electro-hydraulic servo valve. When high-precision fuel oil flow control is met, simultaneous faults of the standby electro-hydraulic servo valve and the main control electro-hydraulic servo valve caused by the same pollutants are avoided, the failure rate of clamping stagnation and blockage of the double-valve heterogeneous fuel oil regulator can be reduced, and therefore the reliability and safety of fuel oil and guide vane control of the fuel oil electronic control regulator are improved.

The invention relates to the technical field of oil nozzles, in particular to an efficient atomization injection system for a direct injection oil injector in a cylinder. According to the technical scheme, an injection execution unit adopts a laser-cladded asymmetric injection hole array, fuel oil is evenly distributed in a combustion chamber through aperture gradient distribution and logarithmic spiral arrangement, and the oil-gas mixing effect is enhanced. The dynamic pressure adjusting unit is integrated with an MEMS film sensor array and a fuzzy neural network controller, a sensor can accurately monitor fuel oil pressure in real time, and the controller is based on a 7-12-3 type BP network and can rapidly and accurately adjust fuel injection pressure according to the working condition of an engine through mass data training. The fuel oil pretreatment unit comprises an ultrasonic cavitation device and a graded heating system, the ultrasonic cavitation device reduces the viscosity of fuel oil, and the graded heating system accurately controls the temperature by means of a PTC heater, a semiconductor laser and a vortex generator. The three units work cooperatively, the fuel oil atomization and combustion efficiency is greatly improved, pollutant emission is reduced, and the engine performance is remarkably improved.

The fuel oil flow sensor comprises a mechanical unit and an electrical unit, the mechanical unit comprises a driving assembly, a rectifying assembly and a rotating assembly which are sequentially arranged on a central shaft, the rotating assembly comprises an impeller, a volute spiral spring and a drum wheel which are sequentially arranged on the central shaft, and the impeller is connected with the drum wheel through the volute spiral spring. The impeller is connected with the central shaft through a bearing, magnets are respectively mounted on the impeller and the drum wheel, the electrical unit comprises an impeller sensing assembly and a drum wheel sensing assembly which respectively correspond to the magnets on the impeller and the magnets on the drum wheel, and an auxiliary turbine is arranged on one side, close to the medium outlet, of the drum wheel on the central shaft. The auxiliary turbine is arranged on one side, close to the medium outlet, of the drum wheel on the central shaft, and the rotating speed of the sensor is adjusted by controlling the rotating resistance of the auxiliary turbine in the medium, so that the rotating speed of the sensor is controlled within a certain range; the problem that the output signal stability, the measurement accuracy of the sensor and the service life of the bearing are affected by too fast rotating speed of the sensor is solved.

The embodiment of the invention is suitable for the technical field of automobiles, and provides an ignition angle correction method and device, an engine and a vehicle, and the method comprises the steps that if a knock retreat angle is larger than a first retreat angle threshold value, a basic ignition angle corresponding to basic fuel oil is obtained according to current engine state information; the mark corresponding to the basic fuel oil is smaller than the mark corresponding to target fuel oil of the engine; controlling the engine to execute ignition operation based on the basic ignition angle; and if the first number of times that the knock retreat angle of the engine within the preset duration is larger than the second retreat angle threshold value meets the first preset condition, the basic ignition angle is periodically corrected according to the target stride on the basis of a preset correction period till the difference value between the corrected basic ignition angle and the target ignition angle meets the second preset condition. The method provided by the embodiment of the invention can reduce the probability of phenomena such as knocking and abnormal combustion of the engine, so that the fault probability of the engine is reduced.

When the intelligent fire-fighting unmanned aerial vehicle cluster system works, the method comprises the following steps that 1, an intelligent fire-fighting unmanned aerial vehicle cluster detects a fire scene and searches a water source near the fire scene, and an optimal route is searched between the water source and the fire scene to lay a pressurizing water pump and a fire hose; 2, the intelligent fire-fighting unmanned aerial vehicle cluster controls a fire-fighting nozzle to conduct fire extinguishing operation, and the positions of a pressurizing water pump and a fire hose are adjusted according to fire behavior changes of a fire scene; and 3, the intelligent fire-fighting unmanned aerial vehicle cluster performs handover control on a fire-fighting nozzle, a pressurizing water pump and a fire-fighting hose in turn, and fuel oil is supplemented to the pressurizing water pump until fire extinguishing operation is finished. A fire-fighting water supply channel can be laid between a water source and a fire scene at an ultra-fast speed, the fire extinguishing operation speed is high, manual intervention is not needed, and nearly infinite fire-fighting water can be continuously provided.

The invention relates to the technical field of oil supply assemblies in afterburner components of aero-engines, in particular to a multi-channel distributed series finger-shaped oil supply header pipe and an afterburner. The multi-channel distributed series finger-shaped oil supply header pipe comprises a body, and a plurality of fuel oil channels are formed in the body; the upper end of the fuel oil channel penetrates through the top surface of the body; each fuel oil channel is correspondingly provided with a plurality of main fuel oil injection holes, the main fuel oil injection holes are communicated with the fuel oil channels, and the axes of the main fuel oil injection holes are perpendicular to the central axis of the body; the plurality of main fuel injection holes in each fuel channel are arranged at intervals from top to bottom; a plurality of bypass oil injection holes are formed in the position close to the main oil injection hole, and the bypass oil injection holes are communicated with the main oil injection hole through connecting holes; the main oil injection hole, the bypass oil injection hole and the connecting hole are all formed in the body.

The invention relates to the technical field of reactors, and discloses a uniform gas-liquid distribution suspended bed reactor for heavy oil hydrogenation, which comprises a reactor shell, a gas-liquid distribution disc is horizontally arranged at the lower end of an inner cavity of the reactor shell, a Venturi annular gas-liquid diffuser is arranged on the gas-liquid distribution disc, and a pre-distribution chamber is formed at the bottom of the gas-liquid distribution disc; the Venturi annular gas-liquid diffuser comprises an outer gas guide pipe arranged on the gas-liquid distribution disc in a penetrating mode. According to the Venturi annular gas-liquid diffuser, through the synergistic effect of a liquid-phase flow annular nozzle and a gas-phase flow annular nozzle, a liquid phase sprayed out at a high speed is actively sheared and broken relative to a low-speed gas phase, and uniform small bubble groups can be generated, so that the gas-liquid contact area is greatly increased; the dissolution rate and the mass transfer efficiency of the hydrogen into the heavy oil are remarkably improved, so that the hydrogenation reaction depth and the product quality are directly improved, and meanwhile, the catalyst in a catalyst suspended bed reaction zone is effectively protected.

An aircraft fuel system includes a fuel tank, a fuel pump configured to receive a fuel flow from the fuel tank via a fuel supply line. The fuel system further includes a tap fluidly coupled to an outlet of the fuel pump, at least one generator or permanent magnet machine fluidly connected to the fuel pump via the tap, and the tap is configured to deliver fuel to the at least one generator or permanent magnet machine. The fuel system further includes a gearbox mechanically connected to the at least one generator or permanent magnet machine.

The invention belongs to the technical field of turboshaft engines, and provides a fuel oil compensation method and device for starting ignition of a turboshaft engine and a storage medium, the method comprises the steps that whether ignition is successful or not in an ignition interval is detected, if ignition fails, corresponding fuel oil compensation is increased, and the ignition interval is that ignition is conducted within the preset range of the rotating speed of the engine; whether the turbine outlet temperature rise meets a first condition or not is detected, and if the first condition is met, fuel compensation is ended. The ignition success rate is improved by detecting whether ignition in the ignition interval succeeds or not and performing fuel compensation outside the designed ignition interval after ignition fails, so that the purpose of reducing the starting time is achieved, and in order to further improve the ignition success rate, whether the turbine outlet temperature rise meets the first condition or not is continuously confirmed, so that the starting time is shortened. And the ignition success rate is further improved, and good adaptability is achieved.

The invention discloses a photovoltaic-driven IDC electric-cooling linkage method and device, and belongs to the technical field of IDC electric-cooling linkage, and the method comprises the following steps: S1, constructing a gravity energy storage structure; s2, the gravity object is lifted to the highest point of the gravity object channel through the gravity energy storage structure; s3, air at the bottom of the gravity object channel is compressed for the second time, and a thermal cracking reaction is carried out; s4, thermal cracking gas generated by the thermal cracking reaction is drained, and combustion products are discharged into a gas storage chamber; s5, the generated steam waste heat pushes a turbine in a turbine chamber to do work for power generation; and S6, domestic hot water and night heating hot water are prepared, convective heat exchange is conducted, the low-temperature reclaimed water obtained after heat exchange is heated into high-temperature steam in a cooler, the high-temperature steam enters a turbine to become high-temperature reclaimed water, and the high-temperature reclaimed water flows into a control center or a water storage pool. The organic matter compressed garbage is used as a gravity object for gravity energy storage, and heavy oil, solid fuel, adsorbents and other high-value products are produced in the gravity energy storage process.

The invention provides an additive adding system and method for a phosphate fire-resistant oil system, and the additive adding system comprises an additive adding control system, an additive quantitative adding device, an additive dissolving device, a vacuumizing device, an oil product injection device, an oil product discharge device and an additive adding control system which are connected, the additive quantitative adding device can automatically add an additive into the additive dissolving device, the additive dissolving device is connected with an oil system needing additive adding through the oil injection device and the oil discharge device, the additive is directly dissolved in the oil system, and all oil in the oil system gradually flows through the additive dissolving device. The phosphate fire-resistant oil additive adding device is simple in structure and convenient to operate, it is guaranteed that even additives with low solubility in phosphate fire-resistant oil can be added, after the device is connected into an oil system through a control system, the additive adding process can be automatically completed, oil products cannot be polluted, and the additive adding process can be simple, efficient and labor-saving.

According to the waste plastic double-heat-carrier circulating rapid pyrolysis fuel oil preparation device provided by the invention, a waste plastic crusher is communicated with the top of a downward pyrolysis reactor through a controllable feeder, and the upper part of the downward pyrolysis reactor is respectively communicated with a pyrolysis dry gas heat exchanger and a primary solid heat carrier return feeder; the bottom of the downward pyrolysis reactor is connected to the top of the moving bed reactor; the top of the moving bed reactor is communicated with the fractionating tower; the bottom of the moving bed is communicated with the lifting pipe heating regenerator through a to-be-generated heat carrier return feeder; a gas distributor, an ash discharge pipe and a gas inlet pipe are arranged at the bottom of the riser heating regenerator, and a first-stage gas-solid separator and a second-stage gas-solid separator are arranged at the top of the riser heating regenerator; a gas outlet of the second-stage gas-solid separator is provided with a pyrolysis dry gas heat exchanger and a waste heat boiler; a wax oil outlet, a diesel oil outlet and a gasoline outlet are formed in the bottom and the upper part of the fractionating tower, one path of tower top dry gas is connected with a water-cooling feeding pipe, the other path of tower top dry gas is communicated with a pyrolysis dry gas heat exchanger and a high-temperature gas hot melting section, and residual dry gas is delivered as a product.

The invention belongs to the technical field of metal organic framework materials, and particularly relates to a UiO-66 (Zr) material as well as a room-temperature preparation method and application thereof. According to the preparation method provided by the invention, the UiO-66 (Zr) material can be efficiently synthesized at room temperature through the specific raw material dosage and the catalyst, the high-temperature condition and the long-time reaction process in the traditional method are avoided, and the energy consumption and the production cost are reduced. Meanwhile, the preparation method provided by the invention is simple to operate, large-scale production is easy to realize, and powerful support is provided for wide application of UiO-66 (Zr). The UiO-66 (Zr) material provided by the invention can catalyze oxidative desulfurization of fuel oil, and has excellent catalytic activity.

The embodiment of the utility model relates to the technical field of electromagnetic valves, and discloses a high-temperature electromagnetic valve group. The high-temperature electromagnetic valve set comprises a plurality of electromagnetic valves, a plurality of main valves, a high-temperature fuel oil channel, a cold oil channel and a first channel. The plurality of main valves are respectively connected with the plurality of electromagnetic valves one by one, each electromagnetic valve comprises an electromagnetic valve upper valve seat, an electromagnetic valve lower valve seat, an electromagnetic valve upper valve core and an electromagnetic valve lower valve core, each electromagnetic valve is connected with an electromagnetic valve upper channel and an electromagnetic valve lower channel, and each main valve comprises a main valve pilot cavity and a main valve piston; and the high-temperature fuel oil channel comprises a high-temperature fuel oil inlet and a plurality of high-temperature fuel oil outlets, high-temperature fuel oil is introduced into inner cavities of the main valves through the high-temperature fuel oil inlet, and when the electromagnetic valves are powered off, the main valve pistons move upwards under the pressure action of the high-temperature fuel oil, the main valves are opened, and the high-temperature fuel oil flows out through the high-temperature fuel oil outlets. According to the device provided by the embodiment of the invention, the oil consumption of the high-temperature electromagnetic valve group can be reduced.

The embodiment of the invention provides a power supply method, electronic equipment and a storage medium, and belongs to the technical field of communication. Load information of a power failure time period is obtained, a target value of battery discharge cut-off capacity is determined according to the duration of the power failure time period and the load information, and power is supplied to main load equipment through a battery power supply module in the power failure time period until the battery remaining power of the battery power supply module reaches the target value of the battery discharge cut-off capacity. And switching to supply power to the main load equipment through the fuel oil power supply module and charging the battery power supply module through the fuel oil power supply module. According to the scheme of the embodiment of the invention, the optimal discharging or charging depth can be dynamically measured and calculated; reasonable parameters are set to coordinate the battery and the oil engine to supply power when the mains supply breaks down, so that the fuel economy of the oil engine is improved, pollution discharge is reduced, and meanwhile the service life of the battery and the service life of the oil engine are prolonged.

The invention discloses a thermal management control system for a small-displacement engine, belongs to the technical field of thermal management of engines, and solves the technical problem of overheating during operation of the existing small-displacement engine. The system comprises a cylinder body, a cylinder cover, a temperature control module, an air cooling radiator, a water pump, a preheater, an expansion water tank, an exhaust pipe water jacket, a control module, a radiator, a thermostat, an oil tank, a first control valve, a second control valve and a third control valve, a water heat exchanger is arranged in the oil tank, the cylinder body is provided with a first temperature sensor, and the cylinder cover is provided with a second temperature sensor. The thermostat is provided with a third temperature sensor, the oil tank is provided with a fourth temperature sensor, and the control module is electrically connected with the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor. The oil supply temperature management mode and the engine body temperature management mode are determined through the cylinder body temperature, the cylinder cover temperature, the cooling water temperature and the fuel oil temperature, so that the engine body of the small-displacement engine is prevented from being overheated, and the performance of the small-displacement engine is improved.

The invention discloses an integrated closed circulation system for an RBCC engine, and solves the problems that a constant-pressure extrusion mode of an existing RBCC engine propellant supply system is not suitable for variable working condition adjustment of an RBCC rocket thrust chamber, and a high-pressure storage tank is huge in structure, large in weight and not beneficial to application and expansion of the system on the day. According to the system, high-temperature oxygen is generated through catalytic decomposition of hydrogen peroxide and acts on the turbine, then the hydrogen peroxide pump and the coal oil pump are driven to work, integrated pressurization, supply and adjustment of propellants can be carried out on the multiple rocket thrust chambers and the ramjet combustion chamber at the same time, and therefore wide-range fuel oil adjustment is met, and a widely-applied electric pump system can be replaced; and the structural envelope and weight are greatly reduced, so that the power requirement of a longer voyage is met.

The invention belongs to the field of target drone fuel oil systems, and particularly relates to a self-adaptive supersonic speed target drone fuel oil system and a control method thereof. The system comprises a machine body oil tank, a first electromagnetic valve, an overflow valve, a pressurization oil tank, a fuel pump, an engine pump, a monitoring module and a control module. The body fuel tank comprises a main fuel tank and an auxiliary fuel tank which are arranged in a fuel tank in the middle of the target drone body and located in front of and behind the theoretical mass center of the target drone respectively. The pressurization oil tank is additionally arranged in the fuel oil cabin, fuel oil in the engine body oil tank enters the pressurization oil tank for pressure maintaining after being pressurized by the fuel oil pump, and then oil is supplied to the engine from the pressurization oil tank, so that stable oil supply to the engine is achieved by establishing a local pressure environment instead of a large pressure environment of the whole fuel oil cabin, and therefore when a fuel oil system works, the fuel oil can be stably supplied to the engine. The oil supply flow and pressure are controlled in a closed-loop mode in real time through the control system according to the engine state.

The invention provides a process method and system for directly capturing carbon dioxide from air and converting and utilizing the carbon dioxide. The process method comprises the following steps: adsorbing raw material gas through a carbon dioxide trapping device, and heating and desorbing to obtain purified carbon dioxide gas; the purified carbon dioxide gas and the electrolyte are subjected to electrocatalytic conversion to obtain synthesis gas, oxygen and condensate water, and the condensate water is recycled through water treatment operation to be used for supplementing the electrolyte; the method comprises the following steps: carrying out Fischer-Tropsch synthesis reaction, hydrocracking and isomerization reaction on synthesis gas to obtain an isomerized oil-gas mixture, wherein heat energy generated by the reaction provides heating desorption heat; and carrying out gas-liquid separation on the heterogeneous oil-gas mixture to obtain combustible gas and an upgraded oil product, carrying out rectification operation on the upgraded oil product to obtain an SAF component and a heavy oil product, and carrying out oxygen-enriched combustion reaction on the combustible gas and oxygen to provide heating desorption heat or supply required heat energy. An integrated and flexible industrial technology platform is developed, carbon capture and conversion processes are seamlessly connected, full-chain optimization from CO2 removal to high-added-value product generation is realized, and self heat energy requirements and wastewater utilization can be met.

The invention particularly relates to a parallel combination engine starting and fuel oil supply system cross-linking structure and a control method, and the parallel combination engine starting and fuel oil supply system cross-linking structure comprises an air turbine, an aircraft accessory cartridge receiver, an engine transmission system and a stamping fuel oil pump; an air turbine shaft is connected with an aircraft accessory casing, a starting clutch is arranged between the air turbine shaft and the aircraft accessory casing, the aircraft accessory casing is connected with an engine transmission system, and the engine transmission system is connected with a turbine engine; an air turbine shaft is connected with a ramjet fuel pump, an oil supply clutch is arranged between the air turbine shaft and the ramjet fuel pump, and the ramjet fuel pump is used for The air turbine is connected with an airplane auxiliary power system through an air entraining pipeline; an auxiliary air entraining valve is arranged on the air entraining pipeline; the air turbine is connected with the turbine engine fan rear flow channel through an air entraining pipeline, and a fan air entraining valve is arranged on the air entraining pipeline. The air turbine is connected with the stamping air inlet channel through an air entraining pipeline, and a stamping air entraining valve is arranged on the air entraining pipeline.

The invention discloses a test bed for an aviation hybrid power turbine power generation system. The test bed comprises a rack system, an emergency load system, a load absorption system, a test system, an electrical control system, a lubricating oil system, a fuel oil system and an exhaust system. According to the invention, the problems of the existing eddy current system during the test are well solved, the test risk is effectively reduced, the test reliability is improved, and the method can be used for the complete machine test of the aviation hybrid power eddy current system; according to the invention, the special protection setting of the engine controller is utilized, the brake and the emergency load system avoid the galloping risk caused by load loss during the test of the high-rotating-speed and high-power eddy current system from the three aspects of fuel control, mechanical braking and emergency load switching, and multiple safety protection measures guarantee each other and act at the same time; requirements of lubricating cooling of the generator, cooling of the generator controller and the like during an eddy current system test are met by means of the independently arranged lubricating oil system, and correct and safe operation of the test bed is guaranteed.

The invention relates to the technical field of fuel additives, in particular to a fuel additive as well as a preparation method and application thereof. Comprising the following components in parts by weight: 60 to 220 parts of bis-polyether amine, 10 to 20 parts of polyisobutene amine, 5 to 15 parts of polyether polyol, 5 to 30 parts of alkyl amine alcohol, 0.5 to 20 parts of polybasic fatty acid ester, 0.5 to 20 parts of alkyl acid ester, 10 to 30 parts of a catalyst, 2 to 7 parts of an antioxidant, 5 to 10 parts of a corrosion inhibitor and 10 to 50 parts of carrier oil. A small amount of the fuel additive is mixed with gasoline or diesel oil, and through bis-polyether amine and polyisobutene amine, combustion of fuel oil in a combustion chamber of an internal combustion engine is improved, more complete combustion of the gasoline or the diesel oil is promoted, the combustion efficiency of the fuel oil is enhanced, the oil consumption is reduced, and the economical efficiency of the fuel oil is improved; and air pollution caused by emission of hydrocarbon or combustion intermediate products is reduced.

The high-temperature-rise combustion chamber comprises a sudden expansion diffuser, a cartridge receiver, a combined air atomizing nozzle and a flame tube and can solve the problems that in the prior art, a high-temperature-rise combustion chamber of a small and medium-sized turbojet engine is low in fuel oil supply pressure and fuel oil flow is increased, so that fuel oil atomization is poor, the combustion efficiency is low, and the combustion efficiency is low. And the service life of the flame tube is difficult to meet the requirement due to great reduction of the cooling air quantity and increase of the cooling air temperature. An overall layout form of fuel oil radial grading and axial grading is innovatively adopted, and swirlers used for assisting fuel oil atomization all adopt a beveling hole mode; space compound angles are innovatively adopted for cooling holes in the flame tube, and the overall layout form of different sizes and different hole pitches is adopted in different areas. Fuel oil atomization quality and efficient combustion under various working conditions can be improved, the service life of the flame tube is prolonged, and meanwhile the machining process of the swirler is simplified due to the fact that the swirler adopts an inclined hole mode.

The invention discloses a method for obtaining a regenerated oil product by comprehensively utilizing high-chlorine high-metal waste mineral oil and tire pyrolytic oil, and belongs to the technical field of post-treatment of waste mineral oil and tire pyrolytic oil. The method comprises the following steps: (1) mixing high-chlorine high-metal waste mineral oil with circulating oil, and feeding the mixture into a reactor A; (2) mixing the effluent of the reactor A with tire pyrolytic oil, and feeding the mixture into a reactor B; (3) separating effluent of the reactor B to obtain naphtha, an oil component A and residues; (4) the oil component A enters a reactor C for hydrogenation upgrading; and (5) separating the effluent of the reactor C to obtain a second oil phase, and enabling the second oil phase to enter a steam stripping stabilizing tower and a normal-pressure rectifying tower to obtain naphtha, light fuel oil, medium fuel oil and heavy fuel oil. The method can solve the problem that chlorine and metal elements are difficult to efficiently remove at the same time in the recycling of high-chlorine high-metal waste mineral oil and tire pyrolytic oil at present, and improves the quality and yield of regenerated oil products.

A firewall system isolating a fire zone of an engine (2) from a hanger (1) located in a non-fire zone, comprising: a vertical firewall (3) arranged at a front end of a frame of the hanger, on which a support structure (13) is arranged for mounting the hanger and a fairing of the engine; and a bottom firewall (7) which is provided so as to extend rearward from the vertical firewall, is provided so as to cover the suspended frame from below, has a bottom plate (71), a left side plate (72), and a right side plate (73), and has an isolated space formed by the vertical firewall, the bottom firewall, and the suspended frame. Fireproof sealing isolation of an aircraft engine can be achieved, meanwhile, arrangement of multiple systems such as fuel oil, hydraulic pressure, an air source, fire prevention, power and EWIS is achieved, influences between the systems are avoided, and structural weight reduction can be achieved.

The invention discloses a nitrogen pressurization system and method of an RBCC engine. The technical problem that an existing nitrogen pressurization system is poor in safety and testability is solved. The pressurization system comprises a nitrogen gas cylinder, a stamping fuel oil storage tank, an oxidizing agent storage tank, a fuel storage tank and a power controller. The nitrogen gas cylinder is connected with the inlet end of the stamping fuel oil storage tank, and a self-locking valve, a first-stage pressure reducing valve and a second-stage pressure reducing valve are sequentially arranged on a connecting pipeline. The power controller is electrically connected with the self-locking valve; the outlet end of the stamping fuel storage tank is connected with the stamping combustion chamber; the outlet ends of the oxidant storage tank and the fuel storage tank are respectively connected with a rocket thrust chamber, and a first gas explosion valve and a second gas explosion valve are respectively mounted on connecting pipelines; a first branch is arranged between the self-locking valve and the first-stage pressure reducing valve and connected with the first gas explosion valve and the second gas explosion valve. A second branch is arranged between the first-stage pressure reducing valve and the second-stage pressure reducing valve and connected with the inlet end of the oxidizing agent storage box and the inlet end of the rocket fuel storage box.

The invention provides a turbine guider testing device comprising a main gas supply module used for adjusting and measuring main gas flow; the combustion heating module is connected to the downstream of the main gas supply module and comprises a combustion chamber and a throttling device arranged at an outlet of the combustion chamber; the flow field setting module is connected to the downstream of the combustion heating module and is used for carrying out flow field homogenization treatment on the high-temperature fuel gas; the guider test module comprises a guider test piece connected to the downstream of the flow field setting module and is used for installing a turbine guider to be tested; the cold air adjusting module comprises a cold air pipeline, a cold air inlet valve group, a cold air distribution tank, a multi-path cold air flow adjusting valve and a multi-path cold air flow orifice plate, the cold air distribution tank divides cold air into a plurality of independent channels, and the cold air flow is dynamically adjusted through the flow adjusting valve and the flow orifice plate of each channel; and the fuel oil control module is connected with the combustion chamber and comprises an oil supply pipeline, a main and auxiliary oil way fuel oil flow meter, a main and auxiliary oil way oil supply regulating valve and a proportional reversing valve.