CN105952526B - Gas-steam combined cycle isobaric variable-volume sliding vane rotor engine - Google Patents
Gas-steam combined cycle isobaric variable-volume sliding vane rotor engine Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B55/00—Internal-combustion aspects of rotary pistons; Outer members for co-operation with rotary pistons
- F02B55/02—Pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B45/00—Engines characterised by operating on non-liquid fuels other than gas; Plants including such engines
- F02B45/02—Engines characterised by operating on non-liquid fuels other than gas; Plants including such engines operating on powdered fuel, e.g. powdered coal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B45/00—Engines characterised by operating on non-liquid fuels other than gas; Plants including such engines
- F02B45/08—Engines characterised by operating on non-liquid fuels other than gas; Plants including such engines operating on other solid fuels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
- F02B53/02—Methods of operating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
- F02B53/04—Charge admission or combustion-gas discharge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
- F02B53/10—Fuel supply; Introducing fuel to combustion space
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B55/00—Internal-combustion aspects of rotary pistons; Outer members for co-operation with rotary pistons
- F02B55/08—Outer members for co-operation with rotary pistons; Casings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B55/00—Internal-combustion aspects of rotary pistons; Outer members for co-operation with rotary pistons
- F02B55/14—Shapes or constructions of combustion chambers
-
- 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
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
A gas-steam combined cycle isobaric variable-volume sliding vane rotor engine is a nearly ideal variable-type high-efficiency gas turbine, and comprises a stator similar to an involute curved surface, a cylindrical rotor, a rotor shaft, a rotor cover, a sliding vane assembly, a side cover, a combustion chamber and the like to form a basic acting system, wherein the stator, the rotor, the side cover and the sliding vane divide the interior into an air gradual compression chamber equivalent to multi-stage compression and a multi-stage expansion gradual expansion chamber with larger volume for acting on combusted gas, when the engine works, the rotor rotates to suck air from an air inlet, the air is gradually compressed under the movement of the sliding vane, and finally the air enters the combustion chamber from an air outlet of the compressed air to be mixed and combusted with the fuel, the gas absorbs heat and expands isobaric, and the pressure intensity is equal because the sliding vane of the expansion chamber is several times larger than the pressure area of the sliding vane of the compression chamber, the expanded gas is separated by sliding vane in the expansion chamber, and the expanded gas has large volume during operation and then performs adiabatic expansion.
Description
Technical Field
The invention relates to a heat engine, in particular to a high-efficiency sliding vane rotor engine and a variable high-efficiency gas turbine for closing acting gas.
Background
The existing piston engine has a complex structure and low efficiency; the efficiency of the best gasoline engine at present is generally more than 20% when in normal operation, and the new Puruisi released in 15 years and 12 months of Toyota Mazda cooperation reaches 40%, which is the highest efficiency of the current commercial use, but the high efficiency working condition range is very low, the low speed performance is poor, and the best gasoline engine is only suitable for mixed power generation; the diesel engine has better efficiency, but poor comfort and heavy weight; the existing rotor engine adopts a combustion explosion type to work, the efficiency is low, the pollution is heavy, and the Mazda stops production; the rough and heavy efficiency of the steam turbine is low; the gas turbine has low quick-acting rate and low miniaturization efficiency.
Disclosure of Invention
The invention aims to provide a gas-steam combined cycle isobaric variable-volume sliding vane rotor engine, which is also a variable-type high-efficiency sliding vane gas turbine close to an ideal closed working gas, is a heat engine adopting simple cycle, and is a particularly simple gas-steam combined cycle engine when a waste heat utilization system is provided. The engine has the characteristics of high efficiency, large torque, good low-speed performance, wide engine rotating speed, relatively wide working area, high efficiency, low emission pollution, stable operation, low noise, simple structure, low cost, high power specific volume ratio quality, quick heating in winter, reliability, durability, easy production, easy maintenance and the like because of the characteristics of opening air suction, opening exhaust, variable compression ratio, continuous fuel gas combustion for doing work, oxygen-enriched independent combustion chamber, closed fuel gas doing work, variable capacity control of the expansion chamber to discharge pressure intensity, waste heat generated steam to enter the expansion chamber for doing work, sliding blade lifting and contraction control in a bearing track groove in a side cover to reduce friction and abrasion and the like.
The thermodynamic principle of the gas-steam combined cycle isobaric variable-volume sliding vane rotor engine is similar to that of a gas turbine, the gas-steam combined cycle isobaric variable-volume sliding vane rotor engine is a rotary power machine which takes continuously flowing gas as a working medium and converts heat energy generated by fuel combustion into mechanical energy, simple cycle is adopted, the engine sucks air from the atmospheric environment and compresses the air, the compressed air and the fuel are combusted in a combustion chamber, the gas is expanded isobaric firstly and then enters a gradual expansion chamber separated by a sliding vane to be gradually expanded (equivalent to the gas turbine of the gas turbine) and then is expanded adiabatically, a typical thermodynamic cycle PV diagram is shown as ABCD in figure 3, the AB section is adiabatic compression, the system is negative work, the BC section fuel combustion gas is expanded isobaric and expanded positively, the CD section is adiabatic expansion, the adiabatic expansion positive work is made.
Under the condition that waste heat generates steam and enters the expansion chamber to do work, the gas-steam combined cycle has thermodynamic cycle theoretical efficiency higher than that of Carnot cycle.
The technical scheme adopted by the gas-steam combined cycle isobaric variable-volume sliding vane rotor engine for solving the technical problems is as follows: the engine is composed of a basic acting system, a lubricating system, a fuel supply control system, a starting ignition system, a waste heat grading utilization system, a computer control system and the like, a single-rotor engine is adopted with small and variable power requirements, and a multi-rotor engine can be adopted with large or variable power requirements.
The basic acting system includes stator, rotor shaft, rotor cover, sliding vane assembly, side cover, combustion chamber, etc. during operation, the rotor rotates to suck air from the air inlet, and the air is gradually compressed under the push of the sliding vane and finally enters the combustion chamber from the compressed air outlet to mix with fuel for combustion, so that the gas absorbs heat and expands in equal pressure. In the basic acting system, a cylindrical rotor with a slip sheet assembly is arranged on a rotor shaft with a spline, the rotor with a slip sheet groove is structurally reinforced by a rotor cover, the rotor cover is provided with a sealing side cover and an oil-gas sealing ring of the rotor, the rotor cover on one side is provided with lubricating oil channels with the number equal to that of the slip sheets, and the rotor cover on the other side is provided with lubricating oil outlet holes with the number equal to that of the slip sheets; the side cover is provided with a rotor shaft bearing nest, a bearing guide rail groove for controlling the sliding sheet assembly to ascend and contract on the rotor, a lubricating oil duct, a communication groove corresponding to a steam channel (which can be used as a compressed air preheating channel without a waste heat utilization system) on a stator of the waste heat utilization system and a waste heat utilization warm water channel on the stator, the side cover fixes the rotor assembly consisting of the rotor, the rotor shaft, the rotor cover, the sliding sheet assembly and the like with the stator together, the stator, the rotor and the side cover divide the interior into two spaces, one is an air gradual compression chamber and the other is a gradual expansion chamber for enabling hot mixed gas to work after combustion, the stator is provided with 4 open type openings, namely an air inlet, a compressed air outlet (the compressed air outlet is possibly designed into a semi-open pressure type non-return one-way air outlet for preventing gas backflow according to needs), a high-temperature gas outlet (an expansion chamber air, The tail gas exhaust port is different from the design of the circular or elliptic curved surface of the past stator, the curved surfaces of the stator of the compression chamber and the expansion chamber are all curved surfaces similar to involute, thus leading a plurality of sliding sheets to share the compression and expansion pressure, being equivalent to multi-stage compression and multi-stage expansion, and further leading the working process to be changed into an approximately ideal adiabatic compression and adiabatic expansion process, the design also effectively reduces the material mechanics requirement and improves the efficiency, the number of the sliding sheets is more, the more the sliding sheets are higher, the more the theoretical efficiency is higher, the less the friction and the heat loss are increased, the efficiency is reduced on the contrary, the tail end of the stator of the other small part of product expansion chamber close to the exhaust port can be designed into a movable form, the expansion ratio is changed, the tail end volume of the expansion chamber is reduced when the idling is carried out at low oil supply and low power, the expansion, the expansion ratio is increased, so that the final exhaust pressure is close to the atmospheric pressure, and the efficiency is improved; it is also an important feature that the expansion chamber volume is much larger than the compression chamber, the specific ratio being based on the operating condition at the highest operating frequency and the general ratio being based on PV-nRT; the sliding vane assembly is composed of a sliding vane, a bearing and a combined sealing sheet, when the rotor rotates, the bearing moves in a bearing guide rail groove on the side cover to control the sliding vane to be very close to a curved surface of the stator but not to be contacted, then the centripetal force generated by the rotation of the combined sealing sheet keeps low-pressure low-friction fit with the stator, in order to ensure that 'devil claw marks' generated by abnormal friction generated by resonance are not generated, an independent lubricating mechanism is designed for the combined sealing sheet contacted with the stator, meanwhile, a support shaft sleeve bearing group is applied in the rotor to reduce the friction between the sliding vane and the rotor and reduce mechanical loss, and a support shaft sleeve bearing groove of the rotor is also used as a lubricating oil channel; the combustion chamber is communicated with a compressed air outlet, an expansion chamber high-temperature gas inlet, is externally connected with a multipoint fuel inlet and an igniter, and is internally provided with 1 to 3 combustors, a waste heat utilization steam outlet is arranged near a gas outlet flow guide pipe, the combustion chamber adopts thin combustion, the excess air coefficient of the existing gasoline engine is about equivalent 1 (generally between 0.85 and 1.2), the low-speed small-power high efficiency is more than 1, the high-speed large-power low efficiency is less than 1, the excess air coefficient of the invention is usually far more than 1 and can reach more than 5, the typical gas temperature pursuing environmental protection and miniaturization is about 1.6 when the temperature of the rarely generates nitrogen oxides, the space-time excess air coefficient is about 1500 ℃, and a larger oil supply space is arranged from 1.6 to 0.9, so that the engine combustion chamber with large air suction amount adopts a plurality of combustors for closing part of the combustor fuel inlets during idling or low-power operation, a small amount of fuel is intensively combusted, the local air fuel ratio is improved, the fuel is not extinguished due to rareness, the multi-combustor has a flame linkage structure, the combustion chamber has the function of a fluid director, high-temperature fuel gas is positioned between water vapor generated by relatively cold waste heat utilization, and heat loss and fuel gas erosion are reduced.
The lubricating system comprises an oil passage at the parts of an oil filter, a filter screen, a lubricating oil pump, an oil pipe, an oil spray pipe, a rotor side cover and the like, a lubricating system in a cylindrical curved surface of a rotor in waste heat utilization, a control system and the like, and an independent lubricating mechanism for lubricating a combined sealing sheet for sealing a sliding sheet and a stator. The lubricating oil pumps of the two systems adopt a spare pump redundancy design. Lubricating oil from the lubricating oil pump enters the rotor from main and auxiliary oil inlets near rotor shaft bearings on the side covers on two sides, and flows to an oil outlet on the other side cover through a slide sheet groove of the rotor, a rotor cover lubricating oil channel, a support shaft sleeve bearing groove, a rotor cover lubricating oil outlet and the like under the action of centripetal force.
The fuel supply control system comprises a control system, a fuel tank or (and) a gas tank, a fuel pump or (and) a fuel pump, a pipeline, a control valve, a nozzle, a sensor and the like which are connected in sequence. The engine has a single-phase or multi-phase switching structure for different liquid fuels and gas fuels, a fuel supply control system has a single-phase or multi-phase switching structure for different liquid fuels and gas fuels by using structures such as a three-way valve or an electromagnetic valve, a four-way valve or an electromagnetic valve, different oil and gas pumps and the like, the combustion chamber has a structure for stopping supplying part of nozzle fuels, and the nozzle and the control system are matched with a combustor of the combustion chamber. In addition, the large-scale machine can suck blown coal powder from the air inlet after being started by oil gas or blow the coal powder into the combustion chamber by using high-pressure gas or spray coal slurry into the combustion chamber, and the ultra-large-scale machine of the power plant can directly use a crane to hoist or convey coal blocks and coal powder by using a conveyer belt through the balance chamber.
The starting ignition system comprises a starting power supply, a motor, a control system, an ignition circuit, a sensor and the like, wherein the ignition circuit can adopt high-voltage electronic ignition and also can adopt electric heating wire hard ignition, or simultaneously has an igniter which can be designed to be in a lifting and moving type.
The waste heat grading utilization sequentially comprises a water tank, a pipeline, a heat exchanger for cooling lubricating oil, a stator compression side waste heat utilization warm water channel, a first-stage heat exchanger for recycling tail gas passing through a second-stage heat exchanger before a pump to generate hot water at the temperature lower than 100 ℃, a parallel heating heat exchanger, a high-pressure water pump (redundant design), a second-stage heat exchanger for recycling tail gas passing through a third-stage heat exchanger to generate hot water at the temperature higher than 100 ℃, a third-stage heat exchanger for recycling tail gas to generate steam, a steam channel for cooling a stator of an expansion chamber, a steam separation chamber, a steam channel for cooling the stator of the expansion chamber, a steam channel for cooling a shell of a combustion chamber, a temperature sensor and the like according to the connection sequence, and the steam separation chamber is provided with two control valves. The three-stage heat exchanger for generating steam adopts a groove type heat pipe structure, gas and liquid have respective channels, a tail gas pipeline is parallel to a water pipe, and the tail gas is unfrozen by waste heat of tail gas in cold weather through a water tank. The heating pipeline of the heating in winter is parallel to the pipeline of the first-stage heat exchanger before the pump, the heating power of the heating is improved by utilizing the heat conduction of the pipe wall, and the waste heat absorbed by the second-stage heat exchanger and the third-stage heat exchanger can be utilized in advance through the water return valve of the water-steam separation chamber when the heating device is just started, so that the heating effect is accelerated. If a waste heat utilization system is not adopted, the heating operation mode is similar to the traditional heating operation mode.
The invention has the beneficial effects that:
the efficiency is high, because the curved surfaces of the stator parts of the compression chamber and the expansion chamber are similar to involute curved surfaces, under the separation of a plurality of sliding sheets, the cycle consisting of an air inlet adiabatic compression process, a constant pressure combustion heating expansion working process, an adiabatic expansion working process and a constant pressure heat release exhaust process is a very standard Browndon cycle, and is a variable high-efficiency sliding sheet type gas turbine close to idealizationt＝W/Q1＝1-1/π(γ-1)/γEquation shows the thermal efficiency etatRatio of main to pressure pi (pi ═ P)2/P1) The air specific heat capacity ratio gamma is related, the air can look at diatomic molecules, gamma is 1.4, for example, when the compression ratio is 6, the pressure ratio is 12.3, the temperature ratio is 2.05, the theoretical thermal efficiency is 51%, when the compression ratio is 10, the pressure ratio is 25.1, the temperature ratio is 2.51, and the theoretical thermal efficiency is 60%, the actual gasoline engine has various factors such as pre-expansion and heat dissipation required by working cycle, the efficiency is far lower than that of ideal cycle, and in comparison, the waste heat grading utilization system can provide a little useful work, is a gas-steam combined cycle, and the theoretical efficiency exceeds the Carnot cycle efficiency; in addition, the actual mechanical efficiency of the engine is higher than that of a gasoline engine and a diesel engine, and the mechanical efficiency of the sliding vane rotor engine is higher than that of a piston engine obtained by slightly higher efficiency of the sliding vane rotor compressor than that of the piston compressor; the heat loss is low, the gasoline engine has to dissipate heat in order to prevent explosion, but the invention can improve the temperature of the engine body and reduce the heat loss within the material permission range, and the fastest heat loss is for the gasoline engine during explosion, but the invention basically has no heat loss at the flame tube. In summary: the actual efficiency of the gasoline for the small-sized engine can easily break through 40 percent, if proper heat-insulating wear-resistant materials are adopted and the compression ratio is slightly higher, the actual efficiency can break through 50 percent of no pressure, and the actual efficiency of the gasoline for the large-sized engine can reach more than 60 percent.
Smooth operation, which is structurally determined, can provide a comfortable driving environment.
Quietness, even without a silencer, improves efficiency because of continuous combustion, no popping in the exhaust at approximately 1 atmosphere, and no impact on the slider due to rail control.
The tail gas is discharged well, the pollution is low, and a tail gas treatment device is not needed, because the excessive air is adopted to burn in the combustion chamber, carbon monoxide and hydrocarbon are basically not generated, and under the condition that the typical working temperature is lower than 1600 ℃, the generated nitrogen oxides are few, if high-temperature and high-pressure are adopted with high efficiency, certain nitrogen oxides exist in the tail gas, and the tail gas treatment is needed.
The torque can be very big during low-speed, and the power explosive force is stronger, can promote speed rapidly, and convenient start, overtaking are mainly because structural feature and excess air factor are far greater than 1 in normal operating, and it is big with the explosive power under the rotational speed, and the torque is just big during the diesel engine low-speed, the reason that the power explosive force is strong is also because the excess air factor is big.
The piston engine has the advantages of high power capacity, large power per liter, high power proportion, miniaturization, and lower production cost than the conventional piston engine, and is suitable for power places such as airplanes and tanks sensitive to volume and weight because the piston engine is a simple and circulating structure.
The engine has wide rotating speed range and high efficiency, and the wide rotating speed range is wider than that of available engine and has complete combustion, low heat loss and less friction change.
The heating installation heats soon in winter, and the reason is directly utilized the tail gas heating, and the heat exchanger total water yield is also low, and the preferential liquid water reflux valve that passes through the steam separation room during the start-up can be with two tertiary heat exchanger hot water circulation backward flow one-level heat exchangers and transmit for heating system.
For the working condition with large power demand change, such as the low-power working condition of a truck, the cylinder can be easily and really stopped, part of rotors stop rotating and stop supplying oil, and the oil consumption can be reduced.
The high-efficiency gas turbine is equivalent to a high-efficiency gas turbine even if the loss is not complete sealing and slightly leaks, because the high-efficiency gas turbine is provided with a plurality of sliding sheets for separating expansion chambers into a plurality of small independent expansion chambers, and gas slightly leaks from the small independent expansion chamber with high first-stage pressure to the small independent expansion chamber with next-stage pressure, the whole energy loss is very limited, even if 'magic claw marks' are generated, the high-efficiency gas turbine can also operate with high efficiency, and if other machines are not overhauled, the high-efficiency gas turbine has longer service life than a piston engine even if the high-efficiency gas turbine is worn more quickly than the piston engine.
Easy production and easy maintenance because of no high-precision adjustment.
The variable compression ratio is provided, the stator curved surface of the compression chamber part is a curved surface similar to an involute, the air outlet of the compression chamber is naturally provided by the opened air outlet, the minimum compression ratio is the ratio of the critical volume of the first space slide sheet at the air inlet just before being closed to the critical volume of the slide sheet at the outlet of the compression chamber when sliding away from the compression chamber, the compression ratio is the compression ratio of the typical working condition, the operation is most stable, the rest compression ratios have certain backflow, the larger the compression ratio is, the more the backflow pulsation is, one method for solving the backflow is to add a one-way non-return blade at the outlet of the compression chamber, so that the air outlet is changed into a semi-open type, and the fuel is not supplied in equal amount after the compression ratio is increased and.
Part of the product has variable expansion ratio because the tail end of the stator of a small part of the product expansion chamber close to the exhaust port is designed into a movable mode, and the efficiency of more working conditions is improved.
Drawings
The invention will be further described with reference to the accompanying drawings, which are merely schematic in nature and are not to scale or to scale.
Fig. 1 is a schematic structural diagram of the principle of the invention.
Fig. 2 is a schematic longitudinal sectional view of the present invention.
Fig. 3 is a diagram of several exemplary thermodynamic operating conditions PV of the present invention.
FIG. 4 is a schematic view of the seal of the slider to side cover of the present invention.
FIG. 5 is a schematic view of the sliding vane and stator seal of the present invention.
FIG. 6 is a schematic view of another embodiment of the present invention in which the gradual compression chamber of air and the gradual expansion chamber of hot mixed gas after combustion are respectively and independently provided as an air compressor and a sliding vane gas turbine in a basic work-doing system.
Fig. 7 is a block diagram of the waste heat utilization process of the present invention.
FIG. 8 is a schematic view of the principle structure of the combustion chamber of the present invention.
FIG. 9 is a schematic partial structure diagram of the drive part of the oil roller and the sealing roller according to the present invention.
FIG. 10 is a schematic view of a simplified structure of a combustion chamber of another ultra-large embodiment of the present invention using coal briquettes as fuel.
Fig. 11 is a schematic view of a simplified structure of a combustion chamber according to another ultra-large embodiment of the present invention using pulverized coal as fuel.
In the figure: 1. a stator 101, a steam channel for cooling the stator of the expansion chamber, a preheating channel for compressed air without a waste heat utilization system 102, a warm water channel for cooling the stator of the compression chamber, 2, a rotor 201, a ring groove on the rotor, 202, a slide groove on the rotor, 3, a rotor shaft, 301, a rotor shaft oil seal, 302, a rotor shaft bearing, 4, a rotor cover, 41, a rotor cover lubricating oil outlet, 42, a rotor cover lubricating oil channel, 43, a rotor cover oil-gas sealing ring, 5, a slide assembly, 51, a slide and stator seal, 52, a slide and rotor seal with a corrugated spring, 53, a support shaft sleeve bearing between the slide and the rotor, 54, a bearing for controlling the slide to rise and fall in a guide rail groove of a side cover bearing, 55, a seal between the slide and the side cover, 551, a limit card for preventing the seal between the slide and the side cover from leaving the slide, 552. the sealing of the sliding vane and the side cover is provided with a limit notch which is blocked by the sliding vane and prevents the sealing sheet from rubbing with the stator, 56 sliding vane lightening holes of the engine with larger displacement, 57 sliding vane heat insulation coating, 58 sliding vane heat insulation coating anti-drop trapezoidal groove, 59 arc snap spring (indicated by spiral spring in the sliding vane), 6 side cover, 61 bearing guide rail groove on the side cover controlling the sliding vane to move up and down, 62 lubricating oil inlet on the side cover, 63 lubricating oil outlet on the side cover, 64V-shaped side cover heat dissipation communication groove on the side cover communicating with a steam channel on the stator, 65 communication groove on the side cover communicating with a waste heat utilization warm water channel on the stator, 7 combustion chamber, 71 flow guide block for reducing air flow impact, 72 flow guide block with waste heat utilization system is a steam outlet, 73 flow guide pipe is internally provided with protective coating, 74 sealing gasket, 75 swirler, 76. a flame tube head part 77, a flame tube body of a porous air film cooling structure 78, a jet hole on the flame tube body 79, a fuel gas guide tube 8, an air inlet 81, an air filter 9, an air outlet 10, a multi-point fuel inlet nozzle and an igniter 11, an oil filter, a filter screen, a lubricating oil pump 12, a lubricating oil pipe 13, a heat exchanger for cooling lubricating oil in waste heat utilization 14, a lubricating oil micro oil pump and an oil tank of an independent lubricating mechanism for lubricating a combined sealing sheet for sealing a sliding sheet and a stator 141, a lubricating oil roller, a double seal 142, a lubricating oil hole 143, an isolation sealing roller and a sealing sheet 144, an oil roller, a sealing roller bearing 145, an oil roller, a sealing roller sealing oil-air ring and a sealing spring 146, an oil roller meshed with a rotor cover, a sealing roller driving gear, 15, a water inlet pipe of a water receiving tank, 16, 17. a first-stage heat exchanger and a heating heat exchanger which are used for recycling the tail gas passing through the second-stage heat exchanger before pumping and generate hot water with the temperature of less than 100 ℃, 18 a high-pressure water pump, 19 a second-stage heat exchanger which is used for recycling the tail gas passing through the third-stage heat exchanger and generate hot water with the temperature of more than 100 ℃, 20 a third-stage heat exchanger which is used for utilizing the waste heat of the tail gas and generate steam, 21 a steam channel for cooling a stator of an expansion chamber, 22 a steam separation chamber, 221 a blow-down valve, 23 a water return valve, 24 a liquid water sensor, a temperature sensor, 25 a liquid water sensor, 26 an electromagnetic valve, 27 a part of product stators are opened when idling and under low power, 28 a part of product stators are added under high power, 29 an air compressor, 30 a sliding vane gas turbine, 31 a gas flowing direction, 32 a movable igniter and a power regulator in a balance pressure changing chamber (not shown in the, 33. the device comprises a dust filter screen, 34, a pulverized coal collecting pipe and an outlet of gas powder entering a combustion chamber, 35, a combustion bed, 36, coal blocks or pulverized coal, 37, a top balance variable pressure chamber, 38 a coal supplementing chamber, 39, a place for realizing air-fuel ratio adjustment and power adjustment, and 40, a cyclone afterburner.
In fig. 3, ABCD is an operation condition at normal power output, the AB stage is adiabatic compression, the system performs negative work, the BC stage fuel combustion gas is expanded with equal pressure and heat absorption, the system performs positive work with equal pressure expansion, the CD stage is adiabatic expansion, the system performs positive work with adiabatic expansion, and the DA stage is open exhaust; ABC3D3E3F3G3For idling or low-power operation, the AB section is adiabatic compression, the system does negative work, BC3The section is adiabatic expansion and should theoretically match the AC in the AB section0Coincidence, AC0Segment consumed energy and BC3The energy released by the sections is equal, and the volume is slightly smaller than that directly compressed to the pressure due to heat loss and the like in practice, so that negative work is performed to generate BC3The reason for the adiabatic expansion of the section is that the expansion chamber is insufficient to maintain the pressure at point B, C, due to less fuel and less heat generation3D3The fuel combustion gas absorbs heat to expand, the system does isobaric expansion positive work, D3E3F3The section is adiabatic expansion, the system does positive work, because the fuel is less, the heat is not much, the pressure is less than the atmospheric pressure when the expansion is finished, E3F3Part of the work is done negatively, and part of the product can be removed by removing part of the stator (27 in the figure), removing the part E that does the negative work3F3In part, increase efficiency, F3G3The section A is open exhaust; AB2C2D2E2For the operation condition of high-power output, the invention naturally has variable compression ratio, so when fuel is added in a certain range, the compression ratio is improved, the pressure is improved, the temperature is improved, the efficiency is also improved, but the power has pulsation, the compressed air inlet can be changed into a semi-open pressure-open type non-return one-way air outlet for preventing gas backflow, and the fuel combustion gas is expanded in the combustion chamber in an isobaric heat absorption manner, wherein AB is2The section is adiabatic compression, the system does negative work, B2C2Stage fuel combustion gas isobaric heat absorption expansion, system positive work, C2D2Adiabatic expansion of the section, positive work done by the system, D2E2Section A is open exhaust, D2E2Part of the energy is wasted, so that part of the product can be used to realize variable expansion ratio by adding part of the stator (28 in the figure), and D lost is properly compensated2F2E2Part of the energy, form AB2C2D2F2E2And A is perfectly circulated.
Detailed Description
In the figure, a stator (1), a rotor (2), a rotor shaft (3), a rotor cover (4), a sliding vane assembly (5), a side cover (6), a combustion chamber (7) and the like form a basic acting system. A cylindrical rotor (2) which is provided with a sliding sheet groove (202) and is provided with a sliding sheet assembly (5) is arranged on a rotor shaft (3) with a spline, and the middle part of a shaft hole of the spline shaft arranged on the rotor is provided with a ring groove (201) communicated with the sliding sheet groove and used for freely circulating air and liquid in the sliding sheet groove, so that the sliding sheet is prevented from compressing air and wasting energy when the sliding sheet is lifted and contracted in the sliding sheet groove; the rotor (2) is structurally reinforced by a rotor cover (4) to form a rotor assembly; the rotor cover (4) is provided with an oil-gas sealing ring (43) which is used for sealing between the rotor (3) and the side cover (6) and is the same as a piston ring, the rotor cover (4) on one side is also provided with lubricating oil channels (42) with the same number as the sliding sheets (5), and the rotor cover (4) on the other side is provided with a corresponding number of lubricating oil outlet holes (41); the rotor assembly composed of a rotor (2), a rotor shaft (3), a rotor cover (4), a sliding vane assembly (5) and the like is fixed together with the stator (1) and the combustion chamber (7) by a side cover (6), a rotor shaft bearing nest, a bearing guide rail groove (61) for controlling the sliding vane assembly to ascend and contract on the rotor, a lubricating oil inlet (62), a lubricating oil outlet (63) and a V-shaped side cover heat dissipation communicating groove (64) of a waste heat utilization system communicated with a steam channel (101) on the stator (1), wherein the V-shaped heat dissipation communicating groove is a communicating groove (65) for good production and communicating a waste heat utilization warm water channel (102) on the stator; the stator (1), the rotor (2) and the side cover (6) divide the interior into two spaces, one is an air gradual compression chamber and the other is a gradual expansion chamber for working with hot mixed gas after combustion, the volume ratio of the expansion chamber to the compression chamber is critical, the specific ratio is determined according to the temperature after compression, the temperature of gas after combustion, the increasing ratio of the number of gas molecules, the ratio of the number of waste heat utilization steam molecules, the temperature and the like, for example, at 6 compression ratios, the typical temperature at the end of compression is 600K, the average temperature of the water vapor containing waste heat utilization after the combustion at the environment-friendly temperature is 1800K, the total increase of the water vapor containing waste heat generation is 10% when the number of molecules is increased, then according to PV ═ nRT, the volume ratio is about 3.3 times, the compression ratio of the working time with the highest working frequency is selected as the expansion ratio when the expansion chamber stator is not changed, and the actual heat loss and the like are slightly lower than 3.3; an air inlet (8) on the stator (1), a high-temperature gas outlet (an expansion chamber air inlet) of a combustion chamber and a tail gas exhaust port (9) are open type openings, a compressed air outlet of a simple engine is an open type opening, a backflow phenomenon exists when a compression ratio is high, energy is wasted, power has some pulses, and the simple engine is designed into a pressure-open type semi-open non-return one-way air outlet which can reduce the pulses and prevent gas backflow; different from the past that the stator (1) is not designed into a circular or elliptic curved surface, the curved surfaces of the stator (1) of the compression chamber and the expansion chamber part are curved surfaces similar to involute, the design can be matched with a large number of sliding sheets to effectively reduce the material requirement and improve the efficiency, in addition, the tail ends of the stators of a small part of high-end product expansion chambers close to the exhaust port can be designed into a movable form, the expansion ratio is changed, the stators are moved away when oil is supplied at low level, the volume of the expansion chambers is reduced, the expansion ratio is reduced, the stators are moved closer when oil is supplied at high level and compression ratio is increased, the final volume of the expansion chambers is increased, the expansion ratio is increased, the final; the stator (1) can be manufactured in 4 pieces, since it is no longer of circular or elliptical design: the compression chamber part of the stator, the expansion chamber part of the stator, the air inlet and exhaust port separation and independent lubrication part of the stator and the combustion chamber separation part of the stator reduce the manufacturing difficulty, and the parts of the stator (1) and the side cover which are in sealing contact with the sliding sheet are plated with high-hardness wear-resistant metal; the sliding vane assembly (5) consists of a sliding vane (5), a bearing (54) and combined sealing sheets (51 and 52), wherein a bearing guide rail groove (61) of the bearing (54) on a side cover (6) ensures that the sliding vane (5) is very close to but not in contact with the curved surface of a stator (1) when a rotor (2) rotates, centripetal force generated by the rotation of the combined sealing sheet (51) keeps low-pressure low-friction fit with the stator (1), meanwhile, a bracket shaft sleeve bearing (53) group is used in the rotor (2) to reduce friction between the sliding vane (5) and the rotor (2), brackets at two ends of the bracket shaft sleeve bearing (53) are slightly large or change shapes and are used for self-limiting, the bracket shaft sleeve bearing (53) groove of the rotor is also used as a lubricating oil channel, a limiting clamp (551) for preventing the sealing sheet from being dislocated and a limiting notch (552) for preventing the sealing sheet from being rubbed with the stator (1) are arranged, an arc-shaped clamp spring (59) is used for keeping the sealing sheet and the side cover (6) sealed, oil-gas sealing is carried out on the sealing of the sliding sheet and the rotor through the sealing (52) of the sliding sheet with the corrugated spring and the sealing of the rotor, a lightening hole (56) is arranged on the sliding sheet of the engine with larger displacement and is sealed, and a heat insulation coating anti-falling trapezoidal groove (58) and a heat insulation coating (57) are arranged on the surface; the inside of a flame tube (77) of a combustion chamber (7) is provided with a heat insulation coating, a flow guide tube is provided with a protective coating (73), 1 to 3 combustors are arranged in the flow guide tube, the flame tube is externally connected with a multi-point fuel inlet and an igniter (10), a steam outlet (72) for utilizing waste heat is arranged on a stator (1) near a gas outlet in the combustion chamber, a flow guide block (71) for reducing air flow impact is arranged, a control unit related to the closed part of the fuel inlet of the combustors, a flame-connecting structure is arranged on the multi-combustor, the design of the combustion chamber is related to the emission of tail gas such as nitric oxide, carbon monoxide, hydrocarbon and the like and the service life of the combustion chamber, and the like, figure 8 is a simple combustion chamber design, the fuel and the air are fully mixed and combusted through a swirler (75), a flame tube head (76), a flame tube body (77) of a porous gas film cooling structure, jet holes (78) on the flame tube body and a gas, and practice proves that; the lubricating system comprises an oil filter, a filter screen, a lubricating oil pump (11), an oil pipe (12), an oil spray pipe, an oil passage at the position of a rotor side cover and the like, a primary heat exchanger in waste heat utilization, a lubricating system in a cylindrical curved surface of a rotor such as a sensor and a control system and an independent lubricating mechanism (14) for lubricating a combined sealing sheet for sealing a sliding sheet and a stator, wherein the lubricating oil pump adopts a spare pump redundancy design, in the lubricating system in the cylindrical curved surface, lubricating oil flows from an inlet (62) to a lubricating oil channel (42) on a rotor cover (4) with the same number as that of the sliding sheet (5), part of the lubricating oil flows from a sliding sheet groove (202) along a gap between the side cover (6) and the rotor (2), part of the lubricating oil flows from a sliding sheet groove (5) to a bracket shaft sleeve bearing (53) groove in the rotor, the other part of the lubricating oil flows from a lubricating oil channel (42) on the rotor, lubricating and cooling the moving part and the sealing part; in an independent lubricating mechanism (14) for lubricating a combined sealing sheet for sealing a slide sheet and a stator, high-temperature tail gas is isolated through an isolation sealing roller and a sealing sheet (143), and a proper amount of lubricating oil is supplemented through a high-temperature-resistant rubber-plastic lubricating oil roller (141), so that the sealing roller and the oil roller are driven by a driving gear (146) in a meshing manner with a rotor cover (4) and sealed with an oil-gas sealing ring (145) and a side cover (6); the fuel supply control system respectively utilizes a three-way valve or an electromagnetic valve, a four-way valve or an electromagnetic valve, different oil-gas pumps and the like to design single-phase or multi-phase switching of liquid fuel and gas fuel according to different product grades, and corresponding nozzles are designed; in the waste heat grading utilization system, the inner diameters of all pipelines and heat exchangers are smaller, the water storage amount of the system is reduced, the waste heat utilization structure in the drawing is only used as a process schematic and is not a real structure, the process in the drawing mainly considers that the steam temperature is improved, the stator temperature is properly improved, the gas and steam efficiency is improved, if the performance of a stator material is obviously reduced at a higher temperature, the position of heat dissipation (waste heat utilization) of the stator is adjusted to the rear part of a water pump (the front part of secondary heat exchange), and the position of a water tank, a heat exchanger (13) for cooling lubricating oil, a primary heat exchanger and a heating heat exchanger (17), a steam channel (101) for cooling the stator of an expansion chamber, a steam channel for cooling a combustion chamber shell and the like are respectively provided with a temperature sensor, if the temperature of the water tank is lower than 0 ℃, the water pump stops working temporarily, and if the temperature of the lubricating oil is high, after the water temperature of the water tank rises, a fan is used for actively dissipating heat, when the temperature of the first-level heat exchanger and the heating heat exchanger (17) is low in winter and just started, the water return valve (23) is properly opened to enable hot water of the second-level heat exchanger and the third-level heat exchanger (19 and 20) to accelerate heating supply, and when the temperature of a steam channel (101) for cooling the stator of the expansion chamber is high, water supply is added to the water pump; the high pressure water pump of redundant design has the sensor whether normal work, the tertiary heat exchanger (20) that produces vapour, steam separation chamber (22) all are equipped with level sensor and temperature sensor, steam separation chamber has control gas-liquid to pass through control valve (23, 26) and blowoff valve (221), wherein produce tertiary heat exchanger (20) of vapour and adopt slot type heat pipe structure, let the gas-liquid have passageway separately, the tail gas pipeline is parallel with the water pipe, and through the water tank, tail gas waste heat unfreezes for cold weather. The heating pipeline of heating in winter is parallel with the pipeline of the first-level heat exchanger before the pump, utilizes the heat conduction of pipe wall to improve heating power, can utilize the absorptive waste heat of second grade, third grade heat exchanger in advance through the wet return valve (23) of steam separation room (22) when just starting for the heating effect, if do not adopt the waste heat utilization system, heating operation mode is similar with the tradition.
Fig. 6 is another embodiment of the present invention, in which the gradual compression chamber of air in the basic acting system and the gradual expansion chamber of hot mixed gas after combustion are respectively and independently used as the schematic diagram of an air compressor and a sliding vane gas turbine, which has the advantage that the bearing guide rail groove (61) on the side cover (6) for controlling the sliding vane assembly to ascend and descend on the rotor is smoother, and can provide higher rotation speed to meet the high-rotation-speed power requirements of aeromodelling, unmanned plane, helicopter, etc.
FIG. 10 is a schematic view of another ultra-large embodiment of the combustion chamber of the present invention using lump coal as fuelThe schematic diagram of the principle of easy structure is to realize the intermittent addition of coal and the removal of coal gangue through a balance pressure transformation chamber. A movable igniter and power regulator (32) in a balance variable pressure chamber (not shown) with coal gangue removed at the side surface is used for igniting or supplementing power supplement when the power is insufficient before and after coal blocks are supplemented, the igniter and power regulator is collected into the side surface balance chamber in normal operation to reduce air resistance, and the side surface balance variable pressure chamber has another function of removing the coal gangue; the air inlet of the dust filter screen (33) is small in mesh, the air outlet mesh can allow small particles to pass through, small coal blocks falling below the combustion bed (35) are used for combustion, and large coal blocks are used for supporting on the combustion bed (35); the top balance variable pressure chamber (37) is used for supplementing fire coal without stopping the machine and pressure relief, one of the top bearing plate and the bottom bearing plate of the balance variable pressure chamber can be pulled away at the same time, so that the coal falls into the next layer, and the bearing plates are provided with multiple seals; when the air-fuel ratio adjustment and power adjustment valve (39) is opened, most of the compressed air flows through the top of the combustion chamber with small air resistance, the air reacting with the coal is reduced, the power is reduced, the air-fuel ratio can be adjusted, the generation of carbon monoxide is reduced, and the power can be adjusted; the cyclone afterburner (40) enables carbon monoxide generated by partial incomplete combustion to be mixed with air for continuous reaction, so that the efficiency is improved, and the emission is reduced. FIG. 11 is a schematic view of a simplified structure of a combustion chamber according to another ultra-large embodiment of the present invention using pulverized coal as fuel, in which a top balance variable pressure chamber (37) is used to supplement the fuel coal, one of the top and bottom bearing plates of the balance variable pressure chamber can be pulled away at the same time to let the coal fall into the next layer, and the bearing plate has multiple seals; the steam outlet (72) of the waste heat utilization system in the coal powder bin utilizes the sprayed amount of steam to adjust the amount of flushed coal powder so as to achieve the purposes of air-fuel ratio adjustment and power adjustment (39), the rest of steam enters the expansion chamber from an outlet beside the fluid director 79, the coal powder collecting pipe and the gas powder enter an outlet (34) of the combustion chamber to collect the coal powder flushed by the steam and send the coal powder into the combustion chamber to be mixed and combusted with air, a filter screen for preventing powder balls from passing is arranged at an inlet of the outlet (34) of the coal powder collecting pipe and the gas powder entering the combustion chamber, and the steam outlet (72) of the waste heat utilization system utilizes other compressed gas to flush the coal powder and utilizes a multi-point fuel inlet nozzle and an igniter (10) to ignite when the coal powder is started. The waste heat utilization system can lead steam to enterThe sliding vane rotor engine can also independently drive a steam turbine or an independent sliding vane rotor engine. CaCO used for tail gas after waste heat utilization3The powder slurry is sprayed for the first time to remove dust and most of SO2、NOxReuse Na2CO3Secondary spray washing of the solution to remove SO2NOx, or by other more specialized methods. Because the coal ash and the like directly enter the expansion chamber after combustion, the lubrication is poor, the abrasion is serious, and the number of sliding sheets is more than normal in order to reduce the air leakage loss after the abrasion.
Claims (13)
1. The isobaric variable-volume sliding vane rotor engine is composed of a basic acting system, a lubricating system, a fuel supply system, a starting ignition system and a control system, is a power machine which takes continuously flowing gas as working medium to convert the energy of fuel into useful work, adopts simple circulation and comprises a compressed air part, a combustion chamber and an expansion acting part, and is characterized in that: the stator, the rotor and the side cover divide the interior of the stator, the rotor and the side cover into an air gradual compression chamber and an air gradual expansion chamber; the independent combustion chamber is communicated with a compressed air outlet of the air gradual compression chamber and an expansion chamber high-temperature fuel gas inlet of the gradual expansion chamber;
the stator comprises four parts, and the four parts are sequentially as follows according to the circumferential sequence: the stator comprises an air inlet and tail gas exhaust port separating and independent lubricating part of the stator, an air gradual compression chamber part of the stator, a combustion chamber separating part of the stator and a gradual expansion chamber part of the stator, wherein the stator curved surfaces of the compression chamber and the expansion chamber part are involute curved surfaces; the stator is correspondingly provided with an air inlet, a compressed air outlet, an expansion chamber high-temperature gas inlet and a tail gas outlet, the air inlet and the tail gas outlet of the stator are respectively provided with an air inlet and an independent lubricating part, the air inlet and the tail gas outlet of the stator are respectively provided with an air inlet and a tail gas outlet, the air inlet and the tail gas outlet of the stator are respectively provided with a tail gas outlet, the tail gas outlet of the stator is provided with a tail gas outlet, the compressed air outlet is provided with a compressed air outlet, the expansion chamber high-temperature gas inlet is provided between the combustion chamber separating part of the stator and the gradual expansion chamber part of the stator, and the air inlet, the compressed air outlet, the expansion chamber high-temperature gas inlet and the tail gas outlet are fully open;
the rotor is a cylindrical rotor which is provided with a slip sheet assembly, is provided with a slip sheet groove, is structurally reinforced by a rotor cover and is arranged on a rotor shaft with a spline, the cylindrical rotor with the slip sheet assembly is arranged on the rotor shaft, the number of the slip sheets is large, the slip sheets are provided with combined sealing sheets, the slip sheet assembly is controlled by a bearing guide rail groove on a side cover to lift and retract on the rotor, the slip sheets are controlled to be close to but not in contact with the curved surface of the stator, and the centripetal force of the combined sealing sheets keeps low friction fit with the stator; the sliding sheet and the side cover are sealed and tightly connected with the sealing sheet through an arc-shaped clamp spring;
the air gradual compression chamber is called as a compression chamber for short, and is characterized in that the air gradual compression chamber is formed by an air inlet, a compressed air outlet and a space between a stator and a rotor which are involute curved surfaces and between the air inlet and the compressed air outlet, the stator curved surface of the air gradual compression chamber part is an involute curved surface, the rotor rotates to suck air from the air inlet when the air gradual compression chamber works, the air is gradually compressed under the pushing and separation of a plurality of sliding sheets sharing compression pressure, and the compressed air is discharged from the compressed air outlet of the gradual compression chamber and is gradually compressed;
the gradual expansion chamber is called as an expansion chamber for short, and is characterized in that a high-temperature gas inlet and a tail gas exhaust port of the expansion chamber and a space between a stator and a rotor which are involute curved surfaces and a side cover are arranged between the high-temperature gas inlet and the tail gas exhaust port of the expansion chamber, and the stator curved surface of the gradual expansion chamber part of air is an involute curved surface;
the independent combustion chamber is called as a combustion chamber for short, is positioned at a compressed air outlet and an expansion chamber high-temperature gas inlet, is fixed with a stator of an air gradual compression chamber part, a stator of a separation part in the combustion chamber, a stator of a gradual expansion chamber part and a side cover at the compressed air outlet and the expansion chamber high-temperature gas inlet, is externally connected with a multipoint fuel inlet and an igniter, and is internally provided with a combustor.
2. The isobaric-positive displacement sliding vane rotor engine according to claim 1, characterized in that: the end of the stator of the expansion chamber close to the exhaust port is designed to be movable to change the expansion ratio.
3. The isobaric-positive displacement sliding vane rotor engine according to claim 1, characterized in that: the engine is provided with a waste heat utilization system which utilizes graded waste heat to prepare steam and returns the steam to the expansion chamber to do work, and the engine is a fuel gas-steam combined cycle with thermodynamic theoretical efficiency higher than that of Carnot cycle.
4. The isobaric-positive displacement sliding vane rotor engine according to claim 1, characterized in that: the sealed of gleitbretter and side cover has the spacing card that prevents that the gasket from leaving the gleitbretter and is blocked by the gleitbretter and prevents that gasket and stator from taking place the frictional spacing breach.
5. The isobaric-positive displacement sliding vane rotor engine according to claim 1, characterized in that: the sliding sheet and the rotor are sealed by the sliding sheet with a corrugated spring and the rotor, and the friction is reduced by a support shaft sleeve bearing between the sliding sheet and the rotor.
6. The isobaric-positive displacement sliding vane rotor engine according to claim 1, characterized in that: the parts of the stator, the side cover and the sliding sheet which are in sealing contact are plated with high-hardness wear-resistant metal.
7. The isobaric-positive displacement sliding vane rotor engine according to claim 1, characterized in that: when the surfaces of the sliding vane and the rotor have heat insulation coatings, the surfaces of the sliding vane and the rotor have heat insulation coatings anti-falling dovetail grooves.
8. The isobaric-positive displacement sliding vane rotor engine according to claim 1, characterized in that: the sliding vane of the engine is provided with lightening holes and is closed.
9. The isobaric-positive displacement sliding vane rotor engine according to claim 1, characterized in that: the rotor that the application rotor lid was run opposite to and is had the gleitbretter groove carries out the structure and strengthens to the oil gas sealing ring who utilizes the rotor to cover seals rotor and side cap, and one side rotor lid has the lubricating oil passageway that equals with the gleitbretter figure, and the opposite side rotor lid has the lubricating oil outlet that equals with the gleitbretter figure.
10. The isobaric-positive displacement sliding vane rotor engine according to claim 1, characterized in that: the middle part of the shaft hole for installing the spline shaft on the rotor is provided with a ring groove communicated with the slide groove and allowing gas and liquid in the slide groove to freely circulate.
11. The isobaric-positive displacement sliding vane rotor engine according to claim 1, characterized in that: the combustion chamber has the function of a fluid director, the stator part in the combustion chamber is provided with a fluid guide block for reducing the impact of air flow, and steam enters the air outlet of the expansion chamber, so that high-temperature fuel gas is positioned between water vapor generated by relatively cold waste heat utilization, and the heat loss and fuel gas erosion are reduced.
12. The isobaric-positive displacement sliding vane rotor engine according to claim 1, characterized in that: the engine can use coal briquettes: the top and the bottom of a balance variable pressure chamber at the top of the combustion chamber are provided with multiple sealed bearing plates, one of which can be drawn away at the same time, and the coal is discontinuously supplemented; removing coal gangue through a side balance transformation chamber; the steam of waste heat utilization gets into the gleitbretter rotor engine, or promotes steam turbine or solitary gleitbretter rotor engine alone, has tail gas treatment system.
13. The isobaric-positive displacement sliding vane rotor engine according to claim 1, characterized in that: the engine can use pulverized coal: the top balance pressure-changing chamber of the combustion chamber is used for supplementing fire coal, one of the top pressure-bearing plates and the bottom pressure-bearing plates of the balance pressure-changing chamber can be drawn away at the same time, so that the coal falls into the next layer, and the pressure-bearing plates are provided with multiple seals; igniting through an igniter; the quantity of the flushed pulverized coal is adjusted by the quantity of the steam sprayed out from the steam outlet of the waste heat utilization system in the pulverized coal bin, so that the purposes of adjusting the air-fuel ratio and adjusting the power are achieved.
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| CN107947472B (en) * | 2017-12-19 | 2023-06-06 | 杭州江南电机股份有限公司 | Energy-saving environment-friendly brushless direct current motor and application method thereof |
| CN109356718B (en) * | 2018-12-01 | 2020-12-18 | 钱裕智 | Simple cycle engine with combustion chamber compressor driven by continuously variable transmission |
| CN112796875B (en) * | 2020-12-30 | 2022-07-05 | 北京工业大学 | Hydrogen-gasoline dual-fuel layered combustion rotor machine and control method thereof |
| CN115523027B (en) * | 2021-12-21 | 2024-05-14 | 梅万伦 | Track vane hot gas turbine engine |
| CN117239998B (en) * | 2023-11-14 | 2024-01-23 | 常州鑫鼎机电设备有限公司 | Integrated electric push rod |
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| CN1141386A (en) * | 1995-07-25 | 1997-01-29 | 刘志钦 | Vane wheel engine |
| CN102278197A (en) * | 2010-06-10 | 2011-12-14 | 杨兴隆 | Double combustion disc type energy saving engine |
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