WO2023216278A1 - Moteur à turbine à énergie électrique - Google Patents

Moteur à turbine à énergie électrique Download PDF

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Publication number
WO2023216278A1
WO2023216278A1 PCT/CN2022/092911 CN2022092911W WO2023216278A1 WO 2023216278 A1 WO2023216278 A1 WO 2023216278A1 CN 2022092911 W CN2022092911 W CN 2022092911W WO 2023216278 A1 WO2023216278 A1 WO 2023216278A1
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Prior art keywords
working fluid
electric energy
electric heater
engine
turbine engine
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PCT/CN2022/092911
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English (en)
Chinese (zh)
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尹彦博
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沈阳漠南动力科技有限公司
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Publication of WO2023216278A1 publication Critical patent/WO2023216278A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C1/00—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid
    • F02C1/04—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being heated indirectly
    • F02C1/05—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being heated indirectly characterised by the type or source of heat, e.g. using nuclear or solar energy

Definitions

  • the invention relates to the field of engine technology, and in particular to an electric energy turbine engine.
  • New energy technologies such as photovoltaic, solar thermal, wind power, hydropower, traditional nuclear power, and controllable thermonuclear fusion power generation have been greatly developed.
  • various energy storage battery technologies such as ternary lithium batteries, lithium iron phosphate batteries, sodium batteries, and graphene batteries are continuously developed and upgraded.
  • the comprehensive performance is that the use of traditional fossil energy is declining due to environmental pollution problems.
  • New energy utilization technologies represented by green power generation, green use of electric energy, and decentralized energy storage have become a major trend for human beings to develop in a scientific and orderly manner.
  • the ratio of output power to mass (weight) (hereinafter referred to as the power-to-weight ratio) is difficult to exceed 6kw/kg.
  • the power-to-weight ratio can easily exceed 6kw/kg, but cannot reach 7kw/kg. Therefore, chemical fuel energy turbine engines, with their unparalleled high power output characteristics, cannot be replaced for the time being in aviation and other fields that require a large engine thrust-to-weight ratio.
  • electric motors cannot temporarily replace turbine engines with high power-to-weight ratio, however, Electric energy is the main form of energy transmission and utilization that will become the trend in the future.
  • the turbojet engine as a type of turbine engine, performs secondary afterburning in the afterburner to increase the enthalpy value of the working fluid gas and increase the engine thrust to increase the output power.
  • the upper temperature limit of this afterburner is also limited by physical and chemical factors and cannot exceed 1900°C. The higher the temperature of the working fluid gas is heated, the greater the output power of the turbine engine. Judging from the above data, the physical and chemical factors of the chemical fuel itself cause the upper limit of the output power of the chemical fuel turbine engine.
  • the present invention provides an electric energy turbine engine, which uses electricity as the energy source to heat the gas working medium and promotes the rotation of the turbine to perform work. It can achieve a higher power-to-weight ratio and can meet more extreme applications. need.
  • An electrical energy turbine engine including:
  • An engine casing is provided with an air inlet and a nozzle
  • a wheel shaft which is arranged inside the engine casing, and the wheel shaft is equipped with a compressor impeller and a turbine;
  • the first-stage electric heater is installed inside the engine casing between the compressor impeller and the turbine, and is used to heat the working fluid gas.
  • one end of the wheel shaft extends out of the air inlet of the engine casing and is connected to the external rotating device.
  • the rotation of the wheel shaft drives the external rotating device to rotate and perform work.
  • a secondary electric heater is provided on one side of the engine casing close to the nozzle for heating the working fluid gas.
  • the air inlet and the nozzle are connected through a working medium return pipe, and there is inert gas in the working medium return pipe.
  • the working fluid return pipe is provided with a working fluid cooler for cooling the hot working fluid discharged from the nozzle.
  • the first-level electric heater is connected to a power controller, and the power controller is used to control the operation of the first-level electric heater; there are several first-level electric heaters, and several first-level electric heaters are provided along the Evenly distributed around the circumference of the engine casing.
  • the secondary electric heater is connected to a power controller, and the power controller is used to control the operation of the secondary electric heater; there are several secondary electric heaters, and several secondary electric heaters are provided along the Evenly distributed around the circumference of the engine casing.
  • the first-stage electric heater is a resistive heating element or an arc plasma heating element
  • the second-stage electric heater is a resistive heating element or an arc plasma heating element.
  • the engine casing is in a cylindrical form, and the compressor impeller adopts a single-stage impeller, a multi-stage impeller, a centrifugal impeller or an axial flow impeller.
  • the wheel axle is arranged inside the engine casing through a wheel axle bearing and a wheel axle support.
  • the present invention provides a turbine engine that uses electrical energy as energy source and heats gas working fluid to perform work as a technical route. It not only uses electricity as energy source, but also can achieve a higher power-to-weight ratio and can meet more extreme application requirements.
  • the turbine engine of the present invention uses electric energy and operates in a two-stage heating mode, if electric heating is performed in the secondary heating unit area (corresponding to the afterburner of the turbojet engine), arc plasma is used as the The heating element can heat the working fluid temperature to above 1900°C and can produce a thrust output that is much higher than that of existing gas or fuel turbine jet engines. Compared with traditional chemical fuel turbine engines, the electric energy turbine engine of the present invention will have unparalleled High power output advantage.
  • the present invention uses electricity as energy source to heat the working fluid gas to perform work, and can work normally in an oxygen-free inert gas environment (such as Martian atmospheric conditions). As the energy density of energy storage batteries gradually increases, electric energy turbine engines will be used in the future. It has broad application prospects in many industries, especially the transportation vehicle industry.
  • the present invention also provides a turbine engine that uses electricity as the energy source and inert gas as the working fluid gas, and recycles the working fluid. That is, a turbine engine technology route is adopted that uses electricity as the energy source and the working fluid uses inert gas recycling. , which not only uses electricity as energy source, but also can exceed the high power-to-weight ratio of traditional chemical fuel turboshaft engines to meet more extreme application requirements.
  • the present invention creates a sealed inert gas environment, allowing the high-temperature components of the electric energy turbine engine to work in this environment, thereby achieving the purpose of using inert gas as the working fluid gas.
  • Figure 1 is a schematic structural diagram of an electric energy turbine engine provided by the present invention
  • FIG. 2 is a schematic structural diagram of an electric energy turbine engine provided by Embodiment 1 of the present invention.
  • FIG. 3 is a schematic structural diagram of an electric energy turbine engine provided by Embodiment 2 of the present invention.
  • Figure 4 is a diagram of each working unit area of the electric energy turbine engine provided by Embodiment 1 and Embodiment 2 of the present invention.
  • Figure 5 is a working flow chart of the electric energy turbine engine provided by Embodiment 1 and Embodiment 2 of the present invention.
  • Figure 6 is a schematic structural diagram of an electric energy turbine engine provided by Embodiment 3 of the present invention.
  • Figure 7 is a working flow chart of the electric energy turbine engine provided by Embodiment 3 of the present invention.
  • Figure 8 is a schematic structural diagram of an electric energy turbine engine provided by Embodiment 4 of the present invention.
  • Figure 9 is an area diagram of each working unit of the electric energy turbine engine provided by Embodiment 4 of the present invention.
  • Figure 10 is a working flow chart of the electric energy turbine engine provided in Embodiment 4 of the present invention.
  • connection should be understood in a broad sense.
  • it can be a mechanical connection or an electrical connection, or both.
  • the internal connection between components may be directly connected or indirectly connected through an intermediate medium.
  • the specific meaning of the above terms can be understood according to the specific situation.
  • the terms “one”, “two” and “three” are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.
  • an electric energy turbine engine including:
  • the engine casing 4 is provided with an air inlet 2 and a nozzle 9;
  • the wheel shaft 1 is arranged inside the engine casing 4, and the wheel shaft 1 is equipped with a compressor impeller 3 and a turbine 7; and
  • the first-stage electric heater 10 is arranged inside the engine casing 4 between the compressor impeller 3 and the turbine 7 and is used to heat the working gas.
  • one end of the wheel shaft 1 extends out of the air inlet 2 of the engine casing 4 and is connected to an external rotating device.
  • the rotation of the wheel shaft 1 drives the external rotating device to rotate and perform work.
  • the external rotating device is a propeller.
  • a secondary electric heater 11 is provided on the side of the engine casing 4 close to the nozzle 9 for heating the working fluid gas.
  • the electric energy turbine engine works in a gas environment, and the gas environment can be either the earth's atmospheric environment or other types of gas environments.
  • the turbine industry usually calls the medium used for turbine work as working fluid.
  • the electric energy turbine engine can work in three ways by adjusting the components of each division of labor unit: (1) the way in which the wheel shaft 1 outputs rotational mechanical energy; (2) the way in which the nozzle 9 injects working fluid gas at high speed to output reverse thrust Method; (3) The working method of composite output of the previous two methods at the same time.
  • the first-stage electric heater 10 heats the working fluid gas to above 1400°C, and the electric energy turbine engine can achieve a power-to-weight ratio of greater than 7kw/kg, especially in inert conditions.
  • inert gas is used as the working fluid, which will not cause oxidative corrosion to the turbine 7 blades, and can further improve the power-to-weight ratio.
  • arc plasma is used to heat the working gas in the secondary heating unit area 25, and the temperature of the working gas can be heated to above 1900°C, which will produce a gas that is much higher than the existing one.
  • Thrust output of a gas or oil-fired turbojet engine When working in the (3) composite output working mode, it is a combination of the above two working modes, and the output power, power-to-weight ratio and other technical indicators of the electric energy turbine engine are higher than those of the existing turbine engines.
  • the air inlet 2 and the nozzle 9 are connected through the working medium return pipe 17, and the working medium return pipe 17 contains inert gas.
  • the working fluid return pipe 17 is provided with a working fluid cooler 5 for cooling the hot working fluid discharged from the nozzle 9 .
  • This embodiment is an electric energy turbine engine that uses working fluid circulation. It is a device that uses electricity to heat the inert working fluid gas, drives the turbine 7 to rotate and perform work, and drives the wheel shaft 1 to output mechanical energy.
  • the working fluid gas is placed inside the turbine engine and is isolated from the ambient gas outside the engine.
  • the 3rd side of the compressor impeller is the cold working fluid entry end, and the 7th side of the turbine is the hot working fluid outlet end.
  • the working fluid gas is an inert gas, which protects the electric heater and turbine 7, can increase the output power of the first-level electric heater 10, and can control the heating temperature of the working fluid gas to be higher than 1400°C.
  • the electric heater and turbine 7 are both in the inert gas
  • the working medium environment will not be oxidized and corroded. Compared with the traditional turbine engine, the output power of the electric energy turbine engine of the present invention is greatly improved.
  • the cooling mode of the working fluid cooler 5 can cool the refluxed hot working fluid through heat exchange, or it can also be cooled by increasing the surface area of the working fluid circulation channel and directly dissipating heat to the atmosphere.
  • the working fluid cooler 5 is used to cool the working fluid with waste heat to the initial cold working fluid state.
  • the wheel shaft 1 in addition to driving the air compressor impeller 3 for compressing air and doing work, the wheel shaft 1 is also extended to the outside of the engine to connect and drive the external rotating device to rotate and do work.
  • the axle air seal 14 seals the rotating part of the axle 1 to prevent working fluid gas from leaking or external gas from entering the engine.
  • the first-level electric heater 10 is connected to the power controller 12, and the power controller 12 is used to control the operation of the first-level electric heater 10; the first-level electric heater 10 is provided with several first-level electric heaters. 10 are evenly distributed along the circumferential direction of the engine casing 4.
  • the secondary electric heater 11 is connected to the power controller 12, and the power controller 12 is used to control the operation of the secondary electric heater 11; there are several secondary electric heaters 11, and several secondary electric heaters 11 are provided along the engine.
  • the circumferential direction of the housing 4 is evenly distributed.
  • the primary electric heater 10 is a resistive heating element or an arc plasma heating element; the secondary electric heater 11 is a resistive heating element or an arc plasma heating element.
  • the primary electric heater 10 and the secondary electric heater 11 are resistive heating elements or arc plasma heating elements.
  • the heater 11 can either use a resistance heating element or an arc plasma heating element alone, or can also use a combination of resistance and arc plasma heating elements at the same time.
  • the primary electric heater 10 and the secondary electric heater 11 are in the form of multiple groups, and are annularly arranged in the corresponding heating unit area along the circumferential direction of the engine casing 4 .
  • the power controller 12 introduces electric energy from the external power grid or battery, and then supplies power to the first-level electric heater 10 and the second-level electric heater 11 through the wire 13.
  • the power controller 12 supplies power to the first-level electric heater 10 and the second-level electric heater 11 through control.
  • the power of the electric heater 11 controls the output power of the first-level electric heater 10 and the second-level electric heater 11 respectively.
  • One wire 13 is connected to the first-level electric heater 10 through wire 2 6, and the other wire 13 is connected to the second-level electric heater 11 through wire 3 8 to realize the first-level electric heater 10 and the second-level electric heater.
  • the heater 11 supplies power, and the connection between the second wire 6 and the third wire 8 and the engine casing 4 is insulated and sealed, and can be introduced through the engine casing 4 at a single point or multiple points to the corresponding electric heater.
  • the engine casing 4 is in a cylindrical form, and the compressor impeller 3 adopts a single-stage impeller, a multi-stage impeller, a centrifugal impeller or an axial flow impeller.
  • the compressor impeller 3 and the turbine 7 are both mounted on the wheel shaft 1.
  • the turbine 7, the wheel shaft 1 and the compressor impeller 3 can either use the same rotational speed, or they can have different rotational speeds and different rotational directions through a transmission device.
  • the turbine 7 is directly connected to the compressor impeller 3 through the wheel shaft 1 or connected through a variable speed drive. When the engine is working, the turbine 7 is the driving force input end, and the wheel shaft 1 and the compressor impeller 3 are driven components.
  • the axle 1 is arranged inside the engine casing 4 through the axle bearing 16 and the axle support 15 , that is, the axle 1 is connected and supported on the engine casing 4 through the axle bearing 16 and the axle support 15 .
  • the wheel axle bearing 16 adopts applicable bearing forms, including air bearings, needle bearings, ball bearings, electromagnetic bearings, ceramic bearings and other rotating bearings; the wheel axle support 15 and the wheel axle bearing 16 can be in the form of multiple sets, and are installed as needed. at any suitable position in the axial direction of the wheel axle 1.
  • the electric energy turbine engine works in three working modes (Embodiment 1 to Embodiment 3) by adjusting the parameter performance of components in different units:
  • an electric energy turbine engine in this embodiment includes:
  • the engine casing 4 is provided with an air inlet 2 and a nozzle 9.
  • the air inlet 2 is the air inlet end and the nozzle 9 is the air outlet end;
  • the wheel shaft 1 is arranged inside the engine casing 4, and the wheel shaft 1 is equipped with a compressor impeller 3 and a turbine 7; and
  • the first-stage electric heater 10 is arranged inside the engine casing 4 between the compressor impeller 3 and the turbine 7 and is used to heat the working gas;
  • axle 1 One end of the axle 1 extends out of the air inlet 2 of the engine casing 4 and is connected to an external rotating device (propeller). The rotation of the axle 1 drives the external rotating device to rotate and perform work;
  • a secondary electric heater 11 is provided inside the engine casing 4 on one side close to the nozzle 9 for heating the working fluid gas.
  • This embodiment is a composite working mode in which the electric energy turbine engine uses the wheel shaft 1 to output mechanical energy and the nozzle 9 to eject working fluid gas at high speed to generate reaction force to do work:
  • the wheel shaft 1 is extended out of the engine air inlet 2 to connect and drive the external rotating device (propeller) to do work, and the nozzle 9 sprays working fluid gas at high speed to generate reverse thrust to do work.
  • This working mode is a compound working mode of the electric energy turbine engine working in two power outputs. In this working mode of the electric energy turbine engine, if the output power of the first-stage electric heater 10 is increased and the blades and vanes of the turbine 7 are increased, The number of stages can increase the proportion of the output power of the mechanical energy output by the wheel shaft 1 in the entire engine power output; conversely, it can reduce its proportion.
  • the proportion of the output power of the working fluid gas ejected from the nozzle 9 to generate reverse thrust in the entire engine power output can be increased, and conversely, its proportion can be reduced.
  • the output power of the turbine engine can be controlled by adjusting the amount of electric energy output to the primary electric heater 10 and the secondary electric heater 11 by the power controller 12 .
  • the working path 20 of the working fluid gas of the electric energy turbine engine in this embodiment is:
  • the working fluid gas is in a free state in the engine inlet area 21;
  • the working fluid gas is sucked into the engine compressor unit area 22 through the engine air inlet 2, and the working fluid gas is pressurized through the compressor impeller 3.
  • the working fluid gas has an enthalpy rise in the engine compressor unit area 22;
  • the working fluid gas After being pressurized, the working fluid gas enters the first-level electric heating unit area 23.
  • the power controller 12 transmits electric energy to the first-level electric heater 10 through the wire one 13 and the second wire 6.
  • the first-level electric heater 10 will pass through the first-level electric heater.
  • the working fluid gas in the heating unit area 23 is heated, and the working fluid gas has a second enthalpy rise;
  • the working fluid gas expands after being heated and flows into the turbine power unit area 24, pushing the turbine 7 to rotate and work, driving the compressor impeller 3 to work, and driving the external rotating device to work, and the working fluid gas exhibits an enthalpy drop;
  • the working fluid gas that has completed work in the turbine power unit area 24 enters the secondary electric heating unit area 25.
  • the power controller 12 transmits electrical energy to the secondary electric heater 11 through the wire one 13 and the wire three 8. 11. Heat the working fluid gas in the area 25 of the secondary electric heating unit, and the enthalpy of the working fluid gas in this area will rise;
  • the reheated refrigerant gas is ejected from the engine nozzle 9 at high speed, generating a reaction force opposite to the ejection direction to perform work, and the refrigerant gas exhibits an enthalpy drop in the engine nozzle area 26;
  • the wheel shaft 1 In addition to driving the compressor impeller 3 for compressing air to do work, the wheel shaft 1 also extends to the outside of the engine air inlet 2, connecting and driving the external rotating device (propeller) to rotate and do work.
  • the working gas outside the electric energy turbine engine continuously flows from the engine
  • the air enters the air inlet 2 flows through the middle areas of the engine, and is ejected from the nozzle 9, so that the engine can continuously output power.
  • an electric energy turbine engine in this embodiment includes:
  • the engine casing 4 is provided with an air inlet 2 and a nozzle 9.
  • the air inlet 2 is the air inlet end and the nozzle 9 is the air outlet end;
  • the wheel shaft 1 is arranged inside the engine casing 4, and the wheel shaft 1 is equipped with a compressor impeller 3 and a turbine 7; and
  • the first-stage electric heater 10 is arranged inside the engine casing 4 between the compressor impeller 3 and the turbine 7 and is used to heat the working gas;
  • a secondary electric heater 11 is provided inside the engine casing 4 on one side close to the nozzle 9 for heating the working fluid gas.
  • This embodiment is a working method in which the electric energy turbine engine ejects working fluid gas at high speed from the nozzle 9 to generate reaction force to do work:
  • This embodiment is based on the first embodiment and eliminates the connection between the wheel shaft 1 and the external rotating device.
  • the output power of the first-stage electric heater 10 is mainly used to drive the turbine 7 to drive the compressor impeller 3 to work.
  • the work done by the turbine 7 is only used to drive the compressor impeller 3 to compress the working fluid gas.
  • the output power of the secondary electric heater 11 is greatly increased, so that the working fluid gas obtains a great enthalpy rise when passing through the unit area.
  • the working fluid gas is heated to a high temperature and high pressure state, and is ejected from the nozzle 9 at high speed, forming reverse thrust to perform work.
  • This method allows the electric energy turbine engine to operate in a single output mode in which the working medium gas is injected at high speed through the nozzle 9 to output reaction force to do work.
  • the electric heater power controller 12 By adjusting the amount of electric energy output to the secondary electric heater 11 by the electric heater power controller 12, the output power of the electric energy turbine engine can be controlled.
  • the working path 20 of the working fluid gas of the electric energy turbine engine in this embodiment is:
  • the working fluid gas is in a free state in the engine inlet area 21;
  • the working fluid gas is sucked into the engine compressor unit area 22 through the engine air inlet 2, and the working fluid gas is pressurized through the compressor impeller 3.
  • the working fluid gas has an enthalpy rise in the engine compressor unit area 22;
  • the working fluid gas After being pressurized, the working fluid gas enters the first-level electric heating unit area 23.
  • the power controller 12 transmits electric energy to the first-level electric heater 10 through the wire one 13 and the second wire 6.
  • the first-level electric heater 10 will pass through the first-level electric heater.
  • the working fluid gas in the heating unit area 23 is heated, and the working fluid gas has a second enthalpy rise;
  • the working fluid gas expands after being heated and flows into the turbine power unit area 24, pushing the turbine 7 to rotate and perform work, driving the compressor impeller 3 to work, and the working fluid gas exhibits an enthalpy drop;
  • the working fluid gas that has completed work in the turbine power unit area 24 enters the secondary electric heating unit area 25.
  • the power controller 12 transmits electrical energy to the secondary electric heater 11 through the wire one 13 and the wire three 8. 11. Heat the working fluid gas in the area 25 of the secondary electric heating unit, and the enthalpy of the working fluid gas in this area will rise;
  • the reheated refrigerant gas is ejected from the engine nozzle 9 at high speed, generating a reaction force opposite to the ejection direction, performing work, and causing an enthalpy drop of the refrigerant gas in the engine nozzle area 26 .
  • an electric energy turbine engine in this embodiment includes:
  • the engine casing 4 is provided with an air inlet 2 and a nozzle 9.
  • the air inlet 2 is the air inlet end and the nozzle 9 is the air outlet end;
  • the wheel shaft 1 is arranged inside the engine casing 4, and the wheel shaft 1 is equipped with a compressor impeller 3 and a turbine 7; and
  • the first-stage electric heater 10 is arranged inside the engine casing 4 between the compressor impeller 3 and the turbine 7 and is used to heat the working gas;
  • One end of the wheel shaft 1 extends out of the air inlet 2 of the engine casing 4 and is connected to the external rotating device.
  • the rotation of the wheel shaft 1 drives the external rotating device to rotate and perform work.
  • This embodiment is a working mode in which the electric energy turbine engine uses the wheel shaft 1 to output the mechanical energy output:
  • This embodiment removes the secondary heater 11 based on the first embodiment; increases the number of blades of the turbine 7, increases the number of impeller stages, and increases the output power of the primary electric heater 10 to improve the performance of the turbine 7.
  • the mechanical energy output by the wheel shaft 1 drives other devices to rotate and perform work.
  • a large enthalpy drop occurs, and the energy carried by the working fluid gas is mainly used to push the turbine 7 to perform work.
  • the temperature and flow rate of the working gas ejected at nozzle 9 are both low, and the reaction power can be ignored.
  • This method allows the electric energy turbine engine to operate in a single output mode that only outputs mechanical energy through the wheel shaft 1 .
  • the electric heater power controller 12 the output power of the electric energy turbine engine can be controlled.
  • the working path 20 of the working fluid gas of the electric energy turbine engine in this embodiment is:
  • the working fluid gas is in a free state in the engine inlet area 21;
  • the working fluid gas is sucked into the engine compressor unit area 22 through the engine air inlet 2, and the working fluid gas is pressurized through the compressor impeller 3.
  • the working fluid gas has an enthalpy rise in the engine compressor unit area 22;
  • the working fluid gas After being pressurized, the working fluid gas enters the first-level electric heating unit area 23.
  • the power controller 12 transmits electric energy to the first-level electric heater 10 through the wire one 13 and the second wire 6.
  • the first-level electric heater 10 will pass through the first-level electric heater.
  • the working fluid gas in the heating unit area 23 is heated, and the working fluid gas has a second enthalpy rise;
  • the working fluid gas expands after being heated and flows into the turbine power unit area 24, pushing the turbine 7 to rotate and work, driving the compressor impeller 3 to work, and driving the external rotating device to work, and the working fluid gas exhibits an enthalpy drop;
  • the working gas completed in the turbine power unit area 24 is ejected from the engine nozzle area 26 .
  • the starting process of the electric energy turbine engine is:
  • an external power device is required to connect the wheel shaft 1 to rotate and drive the compressor impeller 3 so that the external working fluid gas is sucked into the engine air inlet 2 and pressurized through the compressor impeller 3 to the required starting level.
  • the starting process of the electric energy turbine engine can adopt the starting method of the existing turbine engine.
  • an electric energy turbine engine in this embodiment includes:
  • the engine casing 4 is provided with an air inlet 2 and a nozzle 9.
  • the air inlet 2 is the air inlet end and the nozzle 9 is the air outlet end;
  • the wheel shaft 1 is arranged inside the engine casing 4, and the wheel shaft 1 is equipped with a compressor impeller 3 and a turbine 7; and
  • the first-stage electric heater 10 is arranged inside the engine casing 4 between the compressor impeller 3 and the turbine 7 and is used to heat the working gas;
  • axle 1 One end of the axle 1 extends out of the air inlet 2 of the engine casing 4 and is connected to an external rotating device (propeller). The rotation of the axle 1 drives the external rotating device to rotate and perform work;
  • the air inlet 2 and the nozzle 9 are connected through a working fluid return pipe 17. There is inert gas in the working fluid return pipe 17.
  • the working fluid return pipe 17 is provided with a working fluid cooler 5 for cooling the hot working fluid discharged from the nozzle 9.
  • the working path 20 of the working fluid gas of the electric energy turbine engine in this embodiment is:
  • the working fluid gas is in the initial cooling state in the engine inlet area 21;
  • the working fluid gas is sucked into the engine compressor unit area 22 through the compressor impeller 3 and is pressurized.
  • the working fluid gas has an enthalpy rise in the engine compressor unit area 22;
  • the working fluid gas After being pressurized, the working fluid gas enters the first-level electric heating unit area 23.
  • the power controller 12 transmits electric energy to the first-level electric heater 10 through the wire one 13 and the second wire 6.
  • the first-level electric heater 10 will pass through the first-level electric heater.
  • the working fluid gas in the heating unit area 23 is heated, and the heating temperature ranges from the initial temperature to several thousand degrees Celsius, depending on the working conditions; the higher the temperature at which the working fluid gas is heated, the greater the engine output power.
  • the working gas has a second enthalpy rise;
  • the working fluid gas expands after being heated and flows into the turbine power unit area 24, pushing the turbine 7 to rotate and perform work, where the working fluid gas exhibits an enthalpy drop;
  • the working fluid gas that has completed work passes through the working fluid return pipe 17, enters the working fluid return unit area 18, and enters the working fluid cooling unit area 19 through the return channel of the working fluid return pipe 17.
  • the working fluid cooler 5 in the working fluid cooling unit area 19 The working fluid gas is cooled, and the enthalpy of the working fluid gas in the working fluid cooling unit area 19 continues to drop;
  • the working fluid gas cooled by the working fluid cooler 5 enters the engine inlet area 21 again through the return pipe. In this continuous cycle, the working fluid completes the continuous cycle process of compression, heating, power generation, and cooling.
  • the starting process of the electric energy turbine engine of this embodiment (the electric energy turbine engine using working fluid circulation) is as follows:
  • the electric energy turbine engine of this embodiment uses arc plasma as a heating element for circulating working fluid, it can heat the working fluid to more than 1400°C, which is much higher than the upper limit of the combustion temperature of traditional chemical fuels. Therefore, the electric energy turbine engine of this embodiment can Energy turbine engines have unparalleled advantages of high power output.
  • the temperature of the heated working fluid is high, if the working fluid is the atmosphere, the oxygen in the atmosphere will cause strong oxidation erosion on the heating element and the turbine 7, which is mostly made of metal materials. Therefore, inert gas is used as the working fluid and the electric heating element is used. Ultra-high temperature heating can greatly increase the output power of the electric energy turbine engine, while also protecting the heating element and turbine 7 from oxidation erosion.
  • the present invention only protects the structure and effect of heating using electricity as energy source, and other structures of the turbine engine refer to the existing technology.
  • the part heated by the first-level electric heater 10 is an improvement of the existing turbine engine combustion chamber, which uses chemical fuel as energy source to use electricity as energy source.
  • the first-stage electric heater 10 heats the working medium. After the working medium is heated and expanded, it drives the turbine 7 to rotate and perform work to realize the operation of the turbine engine and the output of mechanical energy; the part heated by the second-stage electric heater 11 is the afterburner of the existing turbojet engine.
  • the improvement of the chamber will be from the form of chemical fuel as energy source to the form of electricity as energy source.
  • the present invention heats the working fluid by setting a secondary electric heater 11 in the afterburner. After the working fluid is heated and expanded, it is discharged from the engine nozzle 9. It ejects at high speed and generates a reaction force opposite to the direction of ejection to perform work.

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  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

L'invention concerne un moteur à turbine à énergie électrique, appartenant au domaine technique des moteurs. Le moteur à turbine à énergie électrique comprend un carter de moteur, un turbomoteur et un dispositif primaire de chauffage électrique. Le carter de moteur comporte une entrée de gaz et une buse. Le turbomoteur est disposé à l'intérieur du carter de moteur. Une roue de compression de gaz et une turbine sont montées sur le turbomoteur. Le dispositif primaire de chauffage électrique est disposé à l'intérieur du carter de moteur, entre la roue de compression de gaz et la turbine, et sert à chauffer un milieu gazeux de travail. Et une extrémité du turbomoteur sort de l'entrée de gaz du carter de moteur et est reliée à un dispositif rotatif externe et le turbomoteur tourne pour entraîner le dispositif rotatif externe à effectuer un travail. Dans le moteur à turbine à énergie électrique, le milieu gazeux de travail est chauffé par de l'énergie électrique pour pousser la turbine à tourner pour effectuer un travail, ce qui permet d'élever le rapport puissance/poids et de répondre à un plus haut niveau d'exigences en matière d'applications extrêmes.
PCT/CN2022/092911 2022-05-12 2022-05-16 Moteur à turbine à énergie électrique WO2023216278A1 (fr)

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