WO2023241021A1 - Gas jet stream splitting-type rotor supercharged gas turbine - Google Patents

Gas jet stream splitting-type rotor supercharged gas turbine Download PDF

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Publication number
WO2023241021A1
WO2023241021A1 PCT/CN2023/000072 CN2023000072W WO2023241021A1 WO 2023241021 A1 WO2023241021 A1 WO 2023241021A1 CN 2023000072 W CN2023000072 W CN 2023000072W WO 2023241021 A1 WO2023241021 A1 WO 2023241021A1
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WO
WIPO (PCT)
Prior art keywords
turbine
gas
air
rotor
shell
Prior art date
Application number
PCT/CN2023/000072
Other languages
French (fr)
Chinese (zh)
Inventor
韩培洲
Original Assignee
韩培洲
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Publication date
Application filed by 韩培洲 filed Critical 韩培洲
Publication of WO2023241021A1 publication Critical patent/WO2023241021A1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/04Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
    • F02C3/06Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor the compressor comprising only axial stages
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/14Gas-turbine plants characterised by the use of combustion products as the working fluid characterised by the arrangement of the combustion chamber in the plant
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/14Gas-turbine plants characterised by the use of combustion products as the working fluid characterised by the arrangement of the combustion chamber in the plant
    • F02C3/16Gas-turbine plants characterised by the use of combustion products as the working fluid characterised by the arrangement of the combustion chamber in the plant the combustion chambers being formed at least partly in the turbine rotor or in an other rotating part of the plant
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/12Cooling of plants
    • F02C7/16Cooling of plants characterised by cooling medium
    • F02C7/18Cooling of plants characterised by cooling medium the medium being gaseous, e.g. air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/12Cooling of plants
    • F02C7/16Cooling of plants characterised by cooling medium
    • F02C7/18Cooling of plants characterised by cooling medium the medium being gaseous, e.g. air
    • F02C7/185Cooling means for reducing the temperature of the cooling air or gas
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/36Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02KJET-PROPULSION PLANTS
    • F02K3/00Plants including a gas turbine driving a compressor or a ducted fan

Definitions

  • the present invention relates to a rotor supercharged gas turbine, in particular to a jet split rotor supercharged gas turbine.
  • the purpose of the present invention is to provide a jet-splitting rotor supercharged gas turbine, which not only achieves high efficiency and high power of the rotor supercharged gas turbine, but also realizes the functional gas energy generated by the rotor combustion chamber through structural improvements.
  • the direct backward injection and jet splitting are beneficial to improving the propulsion efficiency of the rotor supercharged gas turbine.
  • the temperature of the remaining power gas in the combustion chamber will The corresponding reduction in pressure improves the working condition of the turbine blades in the turbine shell.
  • the air outlet, the fourth air outlet and the fifth air outlet..., the air outlet of the compressor is connected to the ventilation inlet through the compressed air transmission pipe, and the ventilation outlet and the subsequent corresponding air outlet are connected to the ventilation inlet through the corresponding gas transmission pipe.
  • the corresponding jets on the nozzle plate in front of the turbine are connected.
  • the rear side of the first gas pipe extends backward from the periphery of the turbine shell.
  • each first gas transmission pipe connected to the first gas outlet in each gas distribution angle zone extends backward through the turbine shell and then extends into the tail nozzle at the rear of the turbine housing, and connect the rear end of the first gas delivery pipe with the corresponding diffuser nozzle.
  • the rear side of the first gas transmission pipe can also be arranged in such a way that each first gas transmission pipe connected to the first gas outlet in each gas distribution angle area extends backward through the turbine shell, and the rear end of the first gas transmission pipe is connected to the tail nozzle
  • the diffuser nozzles on the periphery of the tube are connected to Pass.
  • the jet port at the rear end of the first gas pipe is aligned with the outer ring blades connecting the periphery of the swivel ring.
  • the fan duct is connected to the turbine shell through the guide column.
  • the double-acting outer ring blade adopts a streamlined cross-section.
  • the streamlined center line is basically a straight line with a thick arc.
  • the windward and leeward sides of the shape extend from the front and back and gradually become slightly thinner.
  • the high-temperature and high-pressure power gas ejected from the jet port at the rear end of the first gas pipe blows the outer ring blades, causing the outer ring blades to function as a turbine.
  • the outer ring blades will pressurize the air flow entering from the front side of the fan duct and discharge it backward, allowing the outer ring blades to function as a fan again.
  • the corresponding air jets on the rear side of each first gas pipe also adopt an oblong shape and are inclined relative to the turbine axis. Arrange it so that one side of the long and flat air nozzle is far away from the axis center, and the long and flat air nozzle on the other side is close to the axis center.
  • the width of the elongated air nozzle allows the air nozzle to correspond to multiple outer ring blades, and the elongated air nozzle can correspond to multiple outer ring blades.
  • the radial size of the flat narrow portion is smaller than the radial length of the outer ring blades, so that the outer ring blades that rotate through the air jets can be continuously blown by the jetted airflow from the blade tips to the blade roots.
  • the jet split-flow rotor supercharged gas turbine in the third embodiment, it includes a compressor and a turbine connected through a crankshaft.
  • a rotor with several rows of combustion chambers is provided between the compressor and the turbine.
  • the rotor is mounted on the rotor shell. Inside, the rotor shell is divided into several equal gas distribution angle zones. From the starting position in each gas distribution angle zone on the rotor shell to the end position along the direction of rotor rotation, there are successively located gas distribution angle zones within the same angle.
  • the ventilation inlet and ventilation outlet after the ventilation inlet and the ventilation outlet, form an ignition chamber equipped with a spark plug, a first air outlet, a second air outlet, a third air outlet, a fourth air outlet and a fifth air outlet in sequence.
  • Air outlet... the air outlet of the compressor is connected to the ventilation inlet through the compressed air pipe.
  • the ventilation outlet and the corresponding air outlet behind it pass through the corresponding gas pipe and then connect to the corresponding jet on the nozzle plate before the turbine.
  • the final blades located on the rear side of the turbine are located outside the turbine shell.
  • the blade tips of these final blades are also connected to the peripheral connecting swivel ring, and the connecting swivel ring is located behind the turbine shell.
  • the diameter size of the front end face of the connecting swivel ring is the same as the diameter size of the rear end face of the turbine.
  • Peripheral outer ring blades are also formed on the connecting swivel ring.
  • the final stage blades on the rear side of the turbine and the integrated outer ring blades can be installed on the rotor body of the turbine, or on a separate rotor disk on the power output shaft.
  • a peripheral connecting outer ring is also formed on the blade tips of the outer ring blades.
  • a peripheral connecting outer ring is also formed on the connecting outer ring.
  • the fan blade is provided with a nozzle shell on the rear periphery of the turbine shell.
  • the rear side of the turbine shell is connected to the rear side of the nozzle shell set on the periphery through a baffle ring.
  • the diameter size of the rear end face of the nozzle shell is connected to the rear end face of the turbine shell with blades.
  • the diameter of the front end face of the outer ring is the same.
  • the fan duct is connected to the nozzle shell on the periphery of the turbine shell through the guide column piece.
  • each air distribution angle area The first air outlet and the two air outlets in the middle and last positions extend rearward along the periphery of the turbine shell through their respective air pipes, and allow the jets formed at the rear ends of each air pipe to pass between the nozzle shell and the turbine shell
  • the baffle ring is aligned with the outer ring blades at the back.
  • the size of the jet ports at the rear end of each gas pipe is wider, so that each jet port can fill the annular jet port arrangement space between the nozzle shell and the turbine shell.
  • the remaining air outlets are connected to the corresponding jets on the nozzle plate before the turbine through their respective air pipes.
  • the structure behind the turbine consisting of final stage blades, outer ring blades and fan blades is mounted on the turbine rotor body and the rear side through bearings. between the tail cones.
  • the high-temperature and high-pressure power gas generated in the rotor combustion chamber can be ejected directly backward. It improves the propulsion efficiency and is especially suitable as a power device for high-speed aircraft and large and medium-sized unmanned aerial vehicles. And let part of the power gas jet split, because the high-temperature and high-pressure power gas part is allowed to split to blow the outer ring blades that can be cooled, so that the remaining power gas with a corresponding decrease in temperature and pressure can drive the turbine operation and drive the compressor. Under the condition of improving working efficiency, the turbine blades do not need to be made of special high-temperature resistant materials, which will also reduce the manufacturing cost of turbine blades.
  • Figure 2 is a cross-sectional view of the rotor shell and rotor of the jet split rotor supercharged gas turbine along line A-A in Figure 1 .
  • Figure 3 is a cross-sectional view of the tail nozzle of the jet-splitting rotor supercharged gas turbine along line B-B in Figure 1 .
  • Fig. 4 is a structural cross-sectional view of the jet-splitting rotor supercharged gas turbine according to the second embodiment of the present invention.
  • Figure 5 is a cross-sectional view of the tail structure of the jet split rotor supercharged gas turbine along line A-A in Figure 4 .
  • Figure 6 is a cross-sectional view of the double-acting blade taken along line B-B in Figure 4 .
  • Fig. 7 is a structural cross-sectional view of the jet split rotor supercharged gas turbine according to the third embodiment of the present invention.
  • Fig. 8 is a structural cross-sectional view of the jet split rotor supercharged gas turbine according to the fourth embodiment of the present invention.
  • Figure 9 is a cross-sectional view of the rear structure of the jet split rotor supercharged gas turbine along line A-A in Figure 8 .
  • FIG. 1 The overall structure of the jet split rotor supercharged gas turbine of the present invention is shown in Figures 1 and 2, including a compressor 21 and a turbine 23 connected through a crankshaft 22. Between the compressor and the turbine there is a rotor 25 with several rows of combustion chambers 26, which is mounted in a rotor housing 29.
  • the rotor shell 29 is divided into several equal gas distribution angle zones 40. As shown in Figure 2, the rotor shell 29 is divided into three equal gas distribution angle zones 40 (in high-power rotor supercharged gas turbines, also Four gas distribution angle zones can be set), each gas distribution angle zone occupies an angle area of 120 degrees.
  • each gas distribution angle zone 40 on the rotor shell 29 From the starting position in each gas distribution angle zone 40 on the rotor shell 29 to the end position where the rotor 25 rotates in the direction of arrow 56, there are ventilation inlets 8 and ventilation outlets 7 at the same angle. .
  • the corresponding air jets on the nozzle plate 37 are connected.
  • the air outlet end of the compressor 21 is connected to the ventilation inlet 8 through the compressed air transmission pipe 9, and the ventilation outlet 7 is connected through the air transmission pipe 9.
  • the air pipe 17 is connected with the air jet 7' on the jet plate 37.
  • the angle deflection is used to illustrate the state in which the combustion chamber 26 communicates with the ventilation inlet and the ventilation outlet when it is rotated to the positions of the ventilation inlet 8 and the ventilation outlet 7.
  • the compressed air flowing out from the compressor 21 is Air is charged into the combustion chamber 26 through the compressed air pipe 9 and the ventilation inlet 8, squeezing out the medium-pressure working gas in the combustion chamber, completing the medium-pressure ventilation process in the combustion chamber, and the medium-pressure working gas discharged from the ventilation outlet 7
  • the power gas is then sprayed through the corresponding gas pipe 17 through the injection port 7' to the turbine 23 on the rear side.
  • the compressed air air pipe 9 is also provided with a fuel nozzle (not shown) for forming a fuel mixture.
  • an ignition chamber 31 equipped with a spark plug 30 and a first air outlet are arranged in sequence.
  • the rear side of the first gas pipe 24 extends backward from the periphery of the turbine shell 24 through the turbine shell, and then extends into the tail nozzle 19 at the rear of the turbine shell, and allows the rear side of the first gas pipe 11 to The end is connected with the corresponding expansion nozzle 20, so that the high-temperature and high-pressure working gas ejected from the first air outlet 1 can be ejected backward through the first gas pipe 11 and the expansion nozzle 20, so that it can be discharged from the first air outlet 1 Part of the work gas can directly produce jet force.
  • the second air outlet 2, the third air outlet 3, the fourth air outlet 4, the fifth air outlet 5 and the sixth air outlet 6 after the first air outlet 1 are respectively connected through the corresponding air pipes 12 and 12.
  • the gas pipe 13, the gas pipe 14, the gas pipe 15 and the gas pipe 16 are connected with each corresponding jet port on the nozzle plate 37, so that the temperature and pressure of the functional gas energy can be reduced accordingly, the second gas outlet 2 and the subsequent gas outlets are sequentially
  • the decompressed gas is sprayed outward, and then sprayed from the corresponding jets on the nozzle plate 37 to the turbine 23 through the corresponding gas pipes, driving the turbine to rotate and perform work. While the turbine 23 rotates and performs work, it also drives the compressor 21 to continue to generate compression. Air.
  • the amount of working gas entering the first gas pipe 11 can be increased or reduced, and thus the high-pressure gas direct injection propulsion force and the turbojet propulsion force can also be determined. size ratio between.
  • the first air outlet 1 should be allowed to eject more power gas as much as possible to increase the driving force generated by the direct injection of high-pressure power gas.
  • each first gas pipe 11 connected to the first gas outlet 1 in each gas distribution angle area 40 can also be allowed to extend backward through the turbine shell 24 without extending into the tail nozzle 19, but to allow the first gas pipe 11 to extend backward through the turbine shell 24.
  • the rear end of the gas pipe is connected to the diffuser nozzle 20 attached to the periphery of the tail nozzle 19 (not shown).
  • At least a heat insulation layer 41 should be provided on the first gas pipeline 11 .
  • it can also be provided in the diffusion nozzle 17 at the rear end of the first gas pipe 11 The corresponding afterburner injector can flexibly increase the jet force.
  • each first gas transmission pipe 11 connected with the first air outlet 1 in each gas distribution angle area 40 is rearward.
  • an injection port 38 is formed at the rear end of the first gas pipe 11 .
  • the last-stage blades 42 provided on the rear side of the turbine 23 are located outside the turbine shell 24.
  • the blade tips of these final-stage blades 42 are also connected to the connecting swivel 39, and the connecting swivel is located at the outer side of the turbine shell 24. outside.
  • the diameter size of the front end face of the connecting swivel is the same as the diameter size of the rear end face of the turbine shell 24, which is equivalent to the continuation of the rear end of the turbine shell 24 to the rear tail nozzle.
  • Double-acting outer ring blades are also formed on the periphery of the connecting swivel 39. 36.
  • the air jet 38 at the rear end of the first gas pipe 11 is aligned with the outer ring blades 36 connected to the periphery of the rotating ring 39 .
  • the work gas with the highest temperature and pressure in the combustion chamber will first be ejected from the first gas outlet to the outer part, and pass through the first gas outlet.
  • the air jet 38 at the rear end of the gas pipe blows the outer ring blades 36, so that when the double-acting outer ring blades rotate, they can produce greater forward thrust like a fan.
  • a fan duct 43 is also provided around the outer ring blades. , the fan duct is connected to the turbine shell 24 through the guide column piece 45.
  • the double-acting outer ring blade 36 behind the jet port 38 adopts a streamlined cross-section (see Figure 6).
  • the streamlined centerline 51 is basically a straight line, and the outer ring blade located on the periphery of the connecting swivel 39 has a thicker arc shape.
  • the front face 52 and the windward face 53 and the leeward face 54 extend rearwardly and gradually become slightly thinner.
  • the windward angle of the outer ring blades will be twisted accordingly from the blade root to the blade tip.
  • This double-acting outer ring blade 36 is blown by the power gas energy and interacts with the air flow as shown in Figure 6.
  • the high-temperature and high-pressure power gas ejected from the jet port 38 at the rear end of the first gas pipe blows along the arrow 58.
  • Moving the outer ring blades 36 causes the outer ring blades to receive a rotational force as indicated by arrow 57, allowing the double-acting outer ring blades 36 to function as turbines.
  • the outer ring blades will pressurize the air flow entering from the front side of the fan duct 43 and discharge it backward in the direction shown by arrow 59, allowing the double-acting outer ring blades 36 to start again. to the fan function, thereby increasing the forward thrust of the gas turbine.
  • the cross-sectional shape of the double-acting blade 32 is not a very good turbine blade shape, nor is it a very good fan blade shape. It can only be a compromise between being used for power gas blowing work and being used as a fan to exhaust air backward.
  • the ejection port 38 on the rear side of the gas pipe 11 also adopts an elongated and oblong shape, and is arranged obliquely relative to the axis of the turbine, so that one side of the elongated elongated ejection port is far away from the axis center, and the elongated elongated ejection port on the other side is close to the axis center.
  • the size of the width of the air outlet 38 allows the air outlet to correspond to multiple outer ring blades 36, so that the air flow ejected from the air outlet 38 can blow onto multiple double-acting outer ring blades 36 at the same time.
  • the radial size of the flat and narrow part of the nozzle 38 is smaller than the length of the outer ring blade 36 in the radial direction, so that the air flow ejected from the nozzle 38 can only blow on part of the area of the double-action blade.
  • the obliquely arranged nozzle 38 It also enables the outer ring blades that rotate through the air jets to be continuously blown by the ejected airflow from the tip of the blade to the root of the blade, so that the blown double-action blade will not be subject to too much impact force of the working gas. Since three gas distribution angle zones 40 are provided on the rotor shell 29 (see Figure 2), the air jets 38 on the rear side of the first gas delivery pipe 11 in each gas distribution angle zone extend to the rear double-acting outer ring blades. 36, as shown in Figure 5, there will be three air jets 38 spaced 120 degrees apart and aligned with the double-acting outer ring blades.
  • the radial size of the air jets 38 at the rear of each first gas pipe 11 can be basically the same as the radial length of the double-acting outer ring blades 36 (not shown).
  • the third embodiment of the jet split rotor supercharged gas turbine is shown in Figure 7.
  • the compressor 21, rotor shell 29 and rotor 25 of the gas turbine are basically the same as those in the first and second embodiments, including the compressor 21 and the compressor 21 connected through the crankshaft.
  • the turbine 23 is provided with a rotor 25 with several rows of combustion chambers 26 between the compressor and the turbine.
  • the rotor is installed in the rotor shell 29, and the rotor shell 29 is divided into a number of equal gas distribution angle zones 40 (see figure 2), from the starting position in each gas distribution angle zone 40 on the rotor shell 29 to the end position along the rotation direction of the rotor 25, there are ventilation inlets 8 and ventilation outlets 7 at the same angle.
  • the difference of the third embodiment is that in addition to the separately arranged first gas pipeline 11, other corresponding gas pipelines are also separately arranged on the rotor shell 29, and these separately arranged
  • the gas pipe uses the air jet on its rear side to blow the additional outer ring blades.
  • These separately arranged gas transmission pipes and the provided outer ring blades are shown in Figure 7.
  • the final stage blades 42 provided on the rear side of the turbine 23 are located outside the turbine shell 24.
  • the blades of these final stage blades 42 The top is also connected to the peripheral connecting swivel 39, and the connecting swivel is located behind the turbine shell 24.
  • the diameter of the front end face of the connecting swivel is the same as the diameter of the rear end face of the turbine shell 24, which is equivalent to the rear end of the turbine shell 24. Continuation of the tail nozzle toward the rear.
  • a peripheral outer ring blade 32 is also formed on the connecting swivel 39.
  • a flared turbine shell 27 is provided on the periphery of the ring blades, which covers the outer ring blades. The flared turbine shell is connected to the rear side of the turbine shell 24 via a baffle ring 28 .
  • the rotor shell is divided into three valve angle zones 40 (see Figure 2), and each of the rotor shells 29 is The first to sixth air outlets are provided in a gas distribution angle area 40.
  • the first air outlet 1 passes through the first air pipe 11 and uses the jet port 38 at the rear end of the air pipe to pass through the gap between the flared turbine shell and the turbine shell.
  • each jet port 38 at the rear end of each gas delivery pipe is formed in a wider size.
  • each compressed air pipe 9 can also lead to a cold air pipe 48 provided with an intercooler 49, and at the same time, the number of cold air pipes and the rotor The number of air distribution angle zones 40 on the shell is the same.
  • Cold air jets 50 are formed at the rear ends of these cold air air pipes.
  • the cold air air pipes 48 are evenly arranged between other air pipes and connected through the expanded turbine shell.
  • the fourth embodiment of the jet split rotor supercharged gas turbine is shown in Figure 8. Its basic structure is the same as that of the first, second and third embodiments, and also includes a compressor 21 and a turbine 23 connected through a crankshaft 22. . Between the compressor and the turbine there is a rotor 25 with several rows of combustion chambers 26, which is mounted in a rotor housing 29. The rotor shell 29 is divided into a number of equal gas distribution angle zones 40 (see Figure 2). From the starting position in each gas distribution angle zone 40 on the rotor shell 29 to the end position along the rotation direction of the rotor 25, A ventilation inlet 8 and a ventilation outlet 7 are provided at the same angle in sequence.
  • an ignition chamber 31 equipped with a spark plug 30, a first air outlet 1, and a second air outlet are formed in sequence. 2.
  • the third air outlet 3, the fourth air outlet 4 and the fifth air outlet 5..., the ventilation outlet 7 and the corresponding air outlets thereafter pass through the corresponding gas pipes and then connect to the corresponding nozzle plate 37 in front of the turbine.
  • the jets are connected.
  • the structure of the rotor shell 29 can also be the same as that of the first embodiment (see Fig. 2).
  • the first air outlet 1 in each gas distribution angle zone 40 and the two air outlets at the middle and last positions are respectively passed through their respective gas delivery pipes and rearward along the periphery of the turbine shell 24. Extend, and allow the jet ports 38 formed at the rear ends of each gas delivery pipe to pass through the baffle ring 28 between the jet housing 46 and the turbine housing 24 to align with the rear outer ring blades 32 .
  • the size of the air jets at the rear end of each gas pipe is relatively wide, as shown in FIG. 9 , so that each air jet 38 can fill the annular air jet arrangement space between the nozzle housing 46 and the turbine housing 24 .
  • the remaining air outlets pass through the corresponding air pipes and the nozzle plate 37 in front of the turbine 23. The corresponding jets are connected.
  • the separately arranged first air outlet 1 leads to the baffle ring 28 between the nozzle shell and the turbine shell through the gas delivery pipe 11, And let the jet port 38 at the rear end of the gas pipe be aligned with the outer ring blade 32 at the back.
  • the corresponding air pipes 14 and 16 of the fourth air outlet and the sixth air outlet in the middle and last position can be allowed to lead to the baffle ring 28, so that the temperature and pressure are relatively high.
  • the high power gas pushes the outer ring blades 32 and drives the fan blades 44 on the periphery of the outer ring blades, allowing this part of the power gas to generate greater forward thrust through the fan blades.
  • the corresponding gas delivery pipes 12, 13 and 15 of the remaining second air outlet 2, third air outlet 3 and fifth air outlet 5 in each air distribution angle zone 40 on the rotor shell will be connected with those in front of the turbine 23.
  • the corresponding jets on the nozzle plate 37 are connected to each other, allowing the work gas with a correspondingly lower temperature to push the turbine 23 in the turbine shell 24 to rotate and work, thereby improving the operating conditions of the turbine.
  • the structure behind the turbine 23 consisting of the final blade 42, the outer ring blade 32 and the fan blade 44 is installed between the rotor body 33 of the turbine and the rear tail cone 47 through bearings. .
  • each compressed air pipe 9 after the compressor 21 is also provided with an intercooler.
  • the cold air delivery pipe 48 of 49 and the intercooler 49 are installed in the cooler shell 60.
  • the cold air enters from the air inlet 61 on the cooler shell and takes away the compression heat of the compressed air flowing through the intercooler 49 and then from The air flows out from the air outlet 62 on the cooler shell.
  • the number of cold air delivery pipes 48 connected from the intercooler 49 is the same as the number of air distribution angle areas 40 on the rotor shell.
  • Cold air jets 50 are also formed at the rear ends of these cold air delivery pipes, so that the cold air delivery pipes 48 are evenly arranged on the After the other air pipes pass through the baffle ring 28 connecting the nozzle shell 46 and the turbine shell 24, the cold air jets 50 at the rear end of the cold air air pipes are aligned with the outer ring blades 32 at the rear.
  • the positions of the cold air jets 50 at the rear end of each cold air pipe are shown in Figure 9 and are respectively located behind the gas pipe 16 so that the outer ring blades 32 blown by the high-temperature power gas will not be overheated.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

A gas jet split stream-type rotor supercharged gas turbine, which comprises a gas compressor (21) and a turbine (23) connected by means of a mechanical shaft; a rotor (25) having multiple rows of combustion chambers (26) is arranged between the gas compressor and the turbine, the rotor being arranged in a rotor casing (29); in gas outlets provided on the rotor casing, work-producing gas of the highest temperature and pressure generated in the combustion chambers (26) that is in a portion of gas outlets and passes through corresponding gas conveying pipes first generates some thrust by means of a gas jet or driving additionally-provided outer ring blades (36); the remaining work-producing gas in the combustion chamber passes through another portion of gas outlets and corresponding gas conveying pipes and drives the turbine (23). Work-producing gas generated in the combustion chamber undergoes gas jet stream splitting, which improves the work efficiency of the rotor supercharged gas turbine, and there is also no need to use highly temperature-resistant materials to manufacture turbine blades because the remaining work-producing gas in the combustion chambers has a lower temperature and pressure, thereby also reducing the manufacturing costs of the gas turbine.

Description

喷气分流式转子增压燃气轮机Jet split rotor supercharged gas turbine
技术领域 本发明涉及一种转子增压燃气轮机,特别是喷气分流式转子增压燃气轮机。Technical Field The present invention relates to a rotor supercharged gas turbine, in particular to a jet split rotor supercharged gas turbine.
背景技术 在申请号为202011068701.0的转子增压型燃气轮机中,虽然优化了多排燃烧室转子的结构,也让燃油与空气能形成均质的燃油雾化混合汽进行燃烧,但因从转子燃烧室排出去的高温高压作功燃气会全部喷向涡轮作功,虽然使燃气轮机发出的轴功率很大,但在用于飞机的转子增压燃气轮机中,让转子燃烧室产生的作功燃气能部分的直接后喷及喷气分流可能会达到更好的推进效果。Background Technology In the rotor supercharged gas turbine with application number 202011068701.0, although the structure of the multi-row combustion chamber rotor is optimized, fuel and air can form a homogeneous fuel atomization mixture for combustion. The discharged high-temperature and high-pressure power gas will all be sprayed into the turbine to do power. Although the shaft power generated by the gas turbine is very large, in the rotor supercharged gas turbine used for aircraft, the power gas energy generated by the rotor combustion chamber is partially reduced. Direct post-jet and jet splitting may achieve better propulsion effects.
发明内容 本发明的目的是提供一种喷气分流式转子增压燃气轮机,在使转子增压燃气轮机具有高效率大功率的同时,通过结构改进,不仅实现了让转子燃烧室产生的作功燃气能部分的直接向后喷出及喷气分流,有利于提高转子增压燃气轮机的推进工作效率,另外,在转子燃烧室内的高温高压作功燃气部分喷气分流作功后,因燃烧室内余下的作功燃气温度和压力相应的降低,改善了涡轮壳内涡轮叶片的工作运行状态。SUMMARY OF THE INVENTION The purpose of the present invention is to provide a jet-splitting rotor supercharged gas turbine, which not only achieves high efficiency and high power of the rotor supercharged gas turbine, but also realizes the functional gas energy generated by the rotor combustion chamber through structural improvements. The direct backward injection and jet splitting are beneficial to improving the propulsion efficiency of the rotor supercharged gas turbine. In addition, after the high-temperature and high-pressure power gas in the rotor combustion chamber is partially jetted and split to do power, the temperature of the remaining power gas in the combustion chamber will The corresponding reduction in pressure improves the working condition of the turbine blades in the turbine shell.
在本发明的第一输气管旁置式转子增压燃气轮机中,包括喷气分流式转子增压燃气轮机,包括压气机和通过机轴相连接的涡轮,在压气机与涡轮之间设有带若干排燃烧室的转子,该转子装在转子壳内,在转子壳上划分有均等的若干配气角度区,从转子壳上每个配气角度区内的起始位置、到顺转子旋转方向的末端位置处,依次设有处在同一角度内的换气进口与换气出口,在换气进口和换气出口之后,依次形成装有火花塞的点火腔、第一出气口、第二出气口、第三出气口、第四出气口及第五出气口……,压气机的出气端经压缩空气输气管与换气进口相连通,换气出口和其后相应的出气口分别经相应的输气管再与涡轮之前的喷口盘上相应的喷气口相连通,在各配气角度区内的第一出气口与第一输气管相连通后,第一输气管的后侧是从涡轮壳的外围向后延伸过涡轮壳,让第一出气口喷出的高温高压作功燃气能从第一输气管向后喷出,在第一出气口之后的第二出气口、第三出气口、第四出气口及第五出气口……则分别经相应的各自输气管与涡轮之前的喷口盘上各相应的喷气口相连通。In the first gas pipeline side-mounted rotor supercharged gas turbine of the present invention, it includes a jet split rotor supercharged gas turbine, including a compressor and a turbine connected through a crankshaft. There are several rows of combustion chambers between the compressor and the turbine. The rotor of the chamber is installed in the rotor shell. The rotor shell is divided into a number of equal gas distribution angle zones, from the starting position in each gas distribution angle zone on the rotor shell to the end position along the rotor rotation direction. at the same angle, there are ventilation inlets and ventilation outlets at the same angle. After the ventilation inlet and ventilation outlet, an ignition chamber equipped with a spark plug, a first air outlet, a second air outlet, and a third air outlet are formed in sequence. The air outlet, the fourth air outlet and the fifth air outlet..., the air outlet of the compressor is connected to the ventilation inlet through the compressed air transmission pipe, and the ventilation outlet and the subsequent corresponding air outlet are connected to the ventilation inlet through the corresponding gas transmission pipe. The corresponding jets on the nozzle plate in front of the turbine are connected. After the first air outlet in each gas distribution angle zone is connected with the first gas pipe, the rear side of the first gas pipe extends backward from the periphery of the turbine shell. Through the turbine shell, the high-temperature and high-pressure working gas ejected from the first gas outlet can be ejected backward from the first gas pipeline, and the second gas outlet, third gas outlet, fourth gas outlet and The fifth air outlet... is connected to the corresponding jet openings on the nozzle plate in front of the turbine through corresponding respective gas delivery pipes.
在只让喷气分流式转子增压燃气轮机中的第一输气管进行喷气作功时,与各配气角度区内第一出气口连通的各第一输气管向后延伸过涡轮壳后,又伸进涡轮壳后部的尾喷管内,并让第一输气管的后端与相应的扩压喷口相连通。When only the first gas transmission pipe in the jet-splitting rotor supercharged gas turbine is allowed to perform jet power, each first gas transmission pipe connected to the first gas outlet in each gas distribution angle zone extends backward through the turbine shell and then extends into the tail nozzle at the rear of the turbine housing, and connect the rear end of the first gas delivery pipe with the corresponding diffuser nozzle.
第一输气管后侧还可以这样布置,与各配气角度区内第一出气口连通的各第一输气管向后延伸过涡轮壳后,第一输气管的后端又与贴在尾喷管外围上的扩压喷口相连 通。The rear side of the first gas transmission pipe can also be arranged in such a way that each first gas transmission pipe connected to the first gas outlet in each gas distribution angle area extends backward through the turbine shell, and the rear end of the first gas transmission pipe is connected to the tail nozzle The diffuser nozzles on the periphery of the tube are connected to Pass.
在第一输气管后侧也设置叶片时,与各配气角度区内第一出气口连通的各第一输气管向后延伸到涡轮壳后,在第一输气管后端形成有喷气口,在涡轮后侧所设的末级叶片是处在涡轮壳的外侧位置,这些末级叶片的叶顶还与连结转环相连结,并让连结转环处于涡轮壳的外侧,连结转环前端面的直径尺寸与涡轮壳后端面的直径尺寸相同,在连结转环的外围形成有双作用的外环叶片,第一输气管后端的喷气口对准着连结转环外围的外环叶片,在外环叶片的外围还设有风扇函道,风扇函道经导向柱片与涡轮壳相连接,双作用的外环叶片采用了流线型截面,流线型的中心线基本上是一条直线,具有较厚的弧形前面和向后延伸、逐渐略变薄的迎风面及背风面,从第一输气管后端喷气口喷出的高温高压作功燃气吹动外环叶片使外环叶片起到涡轮的作用,在外环叶片转过喷气口后,外环叶片又会把从风扇函道前侧进入的空气流加压向后排出,让外环叶片又起到风扇作用。When blades are also provided on the rear side of the first gas delivery pipe, each first gas delivery pipe connected to the first air outlet in each gas distribution angle zone extends backward to the back of the turbine shell, and an air jet is formed at the rear end of the first gas delivery pipe. The last-stage blades installed on the rear side of the turbine are located outside the turbine shell. The blade tips of these final-stage blades are also connected to the connecting swivel ring, and the connecting swivel ring is located outside the turbine shell, connecting the front end surface of the swivel ring. The diameter size is the same as the diameter size of the rear end surface of the turbine shell. Double-acting outer ring blades are formed on the periphery of the connecting swivel ring. The jet port at the rear end of the first gas pipe is aligned with the outer ring blades connecting the periphery of the swivel ring. There is also a fan duct on the periphery of the ring blade. The fan duct is connected to the turbine shell through the guide column. The double-acting outer ring blade adopts a streamlined cross-section. The streamlined center line is basically a straight line with a thick arc. The windward and leeward sides of the shape extend from the front and back and gradually become slightly thinner. The high-temperature and high-pressure power gas ejected from the jet port at the rear end of the first gas pipe blows the outer ring blades, causing the outer ring blades to function as a turbine. After the outer ring blades rotate through the air outlet, the outer ring blades will pressurize the air flow entering from the front side of the fan duct and discharge it backward, allowing the outer ring blades to function as a fan again.
在双作用的外环叶片尺寸较长时,双作用的外环叶片被制成较长尺寸时,相应的各第一输气管后侧的喷气口也采用扁长形状,并且相对涡轮轴心倾斜布置,让扁长喷气口的一侧远离轴心,另一侧的扁长喷气口则靠近轴心,长形尺寸的喷气口所占宽度让喷气口能对应多个外环叶片,而喷气口扁形窄处的径向尺寸较小于外环叶片的半径方向的长度,使转过喷气口的外环叶片能被喷出的气流从叶片的叶顶延续的吹到叶片根部。When the double-acting outer ring blades are made into a longer size, the corresponding air jets on the rear side of each first gas pipe also adopt an oblong shape and are inclined relative to the turbine axis. Arrange it so that one side of the long and flat air nozzle is far away from the axis center, and the long and flat air nozzle on the other side is close to the axis center. The width of the elongated air nozzle allows the air nozzle to correspond to multiple outer ring blades, and the elongated air nozzle can correspond to multiple outer ring blades. The radial size of the flat narrow portion is smaller than the radial length of the outer ring blades, so that the outer ring blades that rotate through the air jets can be continuously blown by the jetted airflow from the blade tips to the blade roots.
在第三实施例的喷气分流式转子增压燃气轮机中,包括压气机和通过机轴相连接的涡轮,在压气机与涡轮之间设有带若干排燃烧室的转子,该转子装在转子壳内,在转子壳上划分有均等的若干配气角度区,从转子壳上每个配气角度区内的起始位置、到顺转子旋转方向的末端位置处,依次设有处在同一角度内的换气进口与换气出口,在换气进口和换气出口之后,依次形成装有火花塞的点火腔、第一出气口、第二出气口、第三出气口、第四出气口及第五出气口……,压气机的出气端经压缩空气输气管与换气进口相连通,换气出口和其后相应的出气口分别经相应的输气管再与涡轮之前的喷口盘上相应的喷气口相连通,在涡轮后侧所设的末级叶片是处在涡轮壳的外侧位置,这些末级叶片的叶顶还与外围的连结转环相连结,并让连结转环处于涡轮壳的后面,连结转环前端面的直径尺寸与涡轮后端面的直径尺寸相同,在连结转环上还形成有外围的外环叶片,在外环叶片的外围设有把外环叶片罩在其中的扩口涡轮壳,扩口涡轮壳经挡板环与涡轮壳的后侧相连,各配气角度区内的第一出气口和中间及最后位置的两个出气口分别经各自的输气管沿涡轮壳外围向后延伸,在各输气管后端形成有喷气口,输气管后端的喷气口穿过扩口涡轮壳与涡轮壳之间的挡板环后,再对准着后 面的外环叶片,各输气管后端的喷气口尺寸较宽,使各喷气口能排满扩口涡轮壳与涡轮壳之间的环形喷气口布置空间,除了各配气角度区内的第一出气口和中间及最后位置的两个出气口之外,剩余的各出气口则分别经相应的各自输气管与涡轮之前的喷口盘上各相应的喷气口相连通。In the third embodiment of the jet split-flow rotor supercharged gas turbine, it includes a compressor and a turbine connected through a crankshaft. A rotor with several rows of combustion chambers is provided between the compressor and the turbine. The rotor is mounted on the rotor shell. Inside, the rotor shell is divided into several equal gas distribution angle zones. From the starting position in each gas distribution angle zone on the rotor shell to the end position along the direction of rotor rotation, there are successively located gas distribution angle zones within the same angle. The ventilation inlet and ventilation outlet, after the ventilation inlet and the ventilation outlet, form an ignition chamber equipped with a spark plug, a first air outlet, a second air outlet, a third air outlet, a fourth air outlet and a fifth air outlet in sequence. Air outlet..., the air outlet of the compressor is connected to the ventilation inlet through the compressed air pipe. The ventilation outlet and the corresponding air outlet behind it pass through the corresponding gas pipe and then connect to the corresponding jet on the nozzle plate before the turbine. Connected, the final blades located on the rear side of the turbine are located outside the turbine shell. The blade tips of these final blades are also connected to the peripheral connecting swivel ring, and the connecting swivel ring is located behind the turbine shell. The diameter size of the front end face of the connecting swivel ring is the same as the diameter size of the rear end face of the turbine. Peripheral outer ring blades are also formed on the connecting swivel ring. A flared turbine is provided on the periphery of the outer ring blades to cover the outer ring blades. The enlarged turbine shell is connected to the rear side of the turbine shell through the baffle ring. The first air outlet in each gas distribution angle zone and the two air outlets in the middle and last positions are directed along the periphery of the turbine shell through their respective air pipes. After extending rearward, a jet port is formed at the rear end of each gas delivery pipe. After the jet port at the rear end of the gas delivery pipe passes through the baffle ring between the expanded turbine shell and the turbine shell, it is aligned with the rear The outer ring blades on the surface, and the jet openings at the rear end of each gas pipe are wider, so that each jet opening can fill the annular jet opening arrangement space between the expanded turbine shell and the turbine shell, except for the first one in each gas distribution angle area. In addition to the air outlet and the two air outlets in the middle and last position, the remaining air outlets are connected to the corresponding jets on the nozzle plate before the turbine through corresponding respective air pipes.
为降低叶片的工作温度,从压气机之后的各压缩空气输气管上还分别引出设有中间冷却器的冷气输气管,并让冷气输气管数量与转子壳上配气角度区的数量相同,这些冷气输气管后端也形成有冷气喷气口,在让冷气输气管均布排列在其它的输气管之间并穿过连结着扩口涡轮壳与涡轮壳的挡板环后,再让冷气输气管后端的冷气喷气口对准着后面的外环叶片。In order to reduce the working temperature of the blades, cold air air pipes equipped with intercoolers are respectively led from each compressed air air pipe after the compressor, and the number of cold air air pipes is equal to the number of air distribution angle areas on the rotor shell. A cold air jet is also formed at the rear end of the cold air delivery pipe. After the cold air delivery pipes are evenly arranged among other air delivery pipes and pass through the baffle ring connecting the expanded turbine shell and the turbine shell, the cold air delivery pipes are The cold air jets at the rear end are aimed at the outer ring blades at the rear.
为让涡轮的动力能被输出,涡轮后侧的末级叶片和连成一体的外环叶片即可装在涡轮的转子体上,又可装在动力输出轴上的单独转子盘上。In order to allow the power of the turbine to be output, the final stage blades on the rear side of the turbine and the integrated outer ring blades can be installed on the rotor body of the turbine, or on a separate rotor disk on the power output shaft.
在第四实施例的喷气分流式转子增压燃气轮机中,包括压气机和通过机轴相连接的涡轮,在压气机与涡轮之间设有带若干排燃烧室的转子,该转子装在转子壳内,在转子壳上划分有均等的若干配气角度区,从转子壳上每个配气角度区内的起始位置、到顺转子旋转方向的末端位置处,依次设有处在同一角度内的换气进口与换气出口,在换气进口和换气出口之后,依次形成装有火花塞的点火腔、第一出气口、第二出气口、第三出气口、第四出气口及第五出气口……,压气机的出气端经压缩空气输气管与换气进口相连通,换气出口和其后相应的出气口分别经相应的输气管再与涡轮之前的喷口盘上相应的喷气口相连通,在涡轮后侧所设的末级叶片处在涡轮壳的外侧位置,这些末级叶片的叶顶与连结转环相连结,连结转环处于涡轮壳的后面,并且连结转环前端面的直径尺寸与涡轮壳后端面的直径尺寸相同,在连结转环上形成有外围的外环叶片,在外环叶片的叶顶也形成有外围的连结外环,在连结外环上还形成有风扇叶片,在涡轮壳的后侧外围设有喷口壳,涡轮壳的后侧经挡板环与外围所设的喷口壳后侧相连,喷口壳后端面的直径尺寸与后面的设有叶片的连结外环前端面的直径尺寸相同,在风扇叶片的外围还设有把风扇叶片罩在其中的风扇函道,风扇函道通过导向柱片与涡轮壳外围的喷口壳相连,各配气角度区内的第一出气口和中间及最后位置的两个出气口分别经各自的输气管沿涡轮壳外围向后延伸,并让各输气管后端所形成的喷气口穿过喷口壳与涡轮壳之间的挡板环,再对准着后面的外环叶片,各输气管后端的喷气口尺寸较宽,使各喷气口能排满喷口壳与涡轮壳之间的环形喷气口布置空间,除了各配气角度区内的第一出气口和中间及最后位置的两个出气口之外,剩余的各出气口则分别经相应的各自输气管与涡轮之前的喷口盘上各相应的喷气口相连通,涡轮后面的由末级叶片、外环叶片和风扇叶片构成的结构体通过轴承装在涡轮的转子体与后侧的 尾锥之间。In the fourth embodiment of the jet split-flow rotor supercharged gas turbine, it includes a compressor and a turbine connected through a crankshaft. A rotor with several rows of combustion chambers is provided between the compressor and the turbine. The rotor is mounted on the rotor shell. Inside, the rotor shell is divided into several equal gas distribution angle zones. From the starting position in each gas distribution angle zone on the rotor shell to the end position along the direction of rotor rotation, there are successively located gas distribution angle zones within the same angle. The ventilation inlet and ventilation outlet, after the ventilation inlet and the ventilation outlet, form an ignition chamber equipped with a spark plug, a first air outlet, a second air outlet, a third air outlet, a fourth air outlet and a fifth air outlet in sequence. Air outlet..., the air outlet of the compressor is connected to the ventilation inlet through the compressed air pipe. The ventilation outlet and the corresponding air outlet behind it pass through the corresponding gas pipe and then connect to the corresponding jet on the nozzle plate before the turbine. Connected, the final blades located on the rear side of the turbine are located outside the turbine shell. The blade tips of these final blades are connected to the connecting swivel ring. The connecting swivel ring is located behind the turbine shell and connects the front end surface of the swivel ring. The diameter size is the same as the diameter size of the rear end face of the turbine shell. Peripheral outer ring blades are formed on the connecting swivel ring. A peripheral connecting outer ring is also formed on the blade tips of the outer ring blades. A peripheral connecting outer ring is also formed on the connecting outer ring. The fan blade is provided with a nozzle shell on the rear periphery of the turbine shell. The rear side of the turbine shell is connected to the rear side of the nozzle shell set on the periphery through a baffle ring. The diameter size of the rear end face of the nozzle shell is connected to the rear end face of the turbine shell with blades. The diameter of the front end face of the outer ring is the same. There is also a fan duct covering the fan blades on the periphery of the fan blades. The fan duct is connected to the nozzle shell on the periphery of the turbine shell through the guide column piece. In each air distribution angle area The first air outlet and the two air outlets in the middle and last positions extend rearward along the periphery of the turbine shell through their respective air pipes, and allow the jets formed at the rear ends of each air pipe to pass between the nozzle shell and the turbine shell The baffle ring is aligned with the outer ring blades at the back. The size of the jet ports at the rear end of each gas pipe is wider, so that each jet port can fill the annular jet port arrangement space between the nozzle shell and the turbine shell. In addition to the In addition to the first air outlet in the air angle area and the two air outlets in the middle and last positions, the remaining air outlets are connected to the corresponding jets on the nozzle plate before the turbine through their respective air pipes. The structure behind the turbine consisting of final stage blades, outer ring blades and fan blades is mounted on the turbine rotor body and the rear side through bearings. between the tail cones.
为了冷却叶片,从压气机之后的各压缩空气输气管上还分别引出设有中间冷却器的冷气输气管,并让冷气输气管数量与转子壳上配气角度区的数量相同,这些冷气输气管后端也形成有冷气喷气口,在让冷气输气管均布排列在其它的输气管之间并穿过连结着喷口壳与涡轮壳的挡板环后,再让冷气输气管后端的冷气喷气口对准着后面的外环叶片。In order to cool the blades, cold air pipes equipped with intercoolers are also led from each compressed air pipe after the compressor, and the number of cold air pipes is equal to the number of air distribution angle areas on the rotor shell. These cold air pipes A cold air jet is also formed at the rear end. After the cold air pipes are evenly arranged between other gas pipes and pass through the baffle ring connecting the nozzle shell and the turbine shell, the cold air jets at the rear end of the cold air pipe are Aim at the rear outer ring blade.
在这种改进的喷气分流式转子增压燃气轮机中,因第一输气管采用旁置式布置向后伸出,能让转子燃烧室内产生的高温高压作功燃气部分的直接向后喷出,因相应的提高了推进效率,特别适合作为高速飞机和大中型无人机的动力装置。而让部分作功燃气喷气分流,因让高温高压作功燃气部分的分流去吹动可以冷却的外环叶片,让温度和压力相应降低的余下作功燃气去推动涡轮运转并带动压气机,在提高工作效率的条件下,也使得涡轮叶片不必用特别的耐高温材料制造,从而也会降低涡轮叶片的制造成本。In this improved jet split-flow rotor supercharged gas turbine, because the first gas transmission pipe is arranged in a side-by-side manner and extends backward, the high-temperature and high-pressure power gas generated in the rotor combustion chamber can be ejected directly backward. It improves the propulsion efficiency and is especially suitable as a power device for high-speed aircraft and large and medium-sized unmanned aerial vehicles. And let part of the power gas jet split, because the high-temperature and high-pressure power gas part is allowed to split to blow the outer ring blades that can be cooled, so that the remaining power gas with a corresponding decrease in temperature and pressure can drive the turbine operation and drive the compressor. Under the condition of improving working efficiency, the turbine blades do not need to be made of special high-temperature resistant materials, which will also reduce the manufacturing cost of turbine blades.
附图说明 下面结合附图对本发明的喷气分流式转子增压燃气轮机进行详细的说明。BRIEF DESCRIPTION OF THE DRAWINGS The jet split rotor supercharged gas turbine of the present invention will be described in detail below with reference to the accompanying drawings.
图1是本发明的喷气分流式转子增压燃气轮机的结构剖视图。Figure 1 is a structural cross-sectional view of the jet split rotor supercharged gas turbine of the present invention.
图2是沿图1中A-A线的喷气分流式转子增压燃气轮机的转子壳和转子剖视图。Figure 2 is a cross-sectional view of the rotor shell and rotor of the jet split rotor supercharged gas turbine along line A-A in Figure 1 .
图3是沿图1中B-B线的喷气分流式转子增压燃气轮机的尾喷管剖视图。Figure 3 is a cross-sectional view of the tail nozzle of the jet-splitting rotor supercharged gas turbine along line B-B in Figure 1 .
图4是本发明第二实施例的喷气分流式转子增压燃气轮机的结构剖视图。Fig. 4 is a structural cross-sectional view of the jet-splitting rotor supercharged gas turbine according to the second embodiment of the present invention.
图5是沿图4中A-A线的喷气分流式转子增压燃气轮机的尾部结构剖视图。Figure 5 is a cross-sectional view of the tail structure of the jet split rotor supercharged gas turbine along line A-A in Figure 4 .
图6是沿图4中B-B线的双作用叶片截面剖视图。Figure 6 is a cross-sectional view of the double-acting blade taken along line B-B in Figure 4 .
图7是本发明第三实施例的喷气分流式转子增压燃气轮机的结构剖视图。Fig. 7 is a structural cross-sectional view of the jet split rotor supercharged gas turbine according to the third embodiment of the present invention.
图8是本发明第四实施例的喷气分流式转子增压燃气轮机的结构剖视图。Fig. 8 is a structural cross-sectional view of the jet split rotor supercharged gas turbine according to the fourth embodiment of the present invention.
图9是沿图8中A-A线的喷气分流式转子增压燃气轮机的尾部结构剖视图。Figure 9 is a cross-sectional view of the rear structure of the jet split rotor supercharged gas turbine along line A-A in Figure 8 .
具体实施方式 本发明的喷气分流式转子增压燃气轮机总体结构如图1和图2所示,包括压气机21和通过机轴22相连接的涡轮23。在压气机与涡轮之间设有带若干排燃烧室26的转子25,该转子装在转子壳29内。在转子壳29上划分有均等的若干配气角度区40,如图2所示,在转子壳29上划分了三个均等的若干配气角度区40(在大功率转子增压燃气轮机中,也可设置四个配气角度区),每个配气角度区占有120度的角度区域。从转子壳29上每个配气角度区40内的起始位置、到顺转子25沿箭头56方向旋转的末端位置处,依次设有处在同一角度内的换气进口8与换气出口7。在换气进口8和换气出口7之后,可依次形成装有火花塞30的点火腔31、第一出气口1、 第二出气口2、第三出气口3、第四出气口4及第五出气口5……,换气出口7之后相应的各作功燃气出气口是分别经相应的输气管再与涡轮之前的喷口盘37上相应的喷气口相连通的。DETAILED DESCRIPTION OF THE INVENTION The overall structure of the jet split rotor supercharged gas turbine of the present invention is shown in Figures 1 and 2, including a compressor 21 and a turbine 23 connected through a crankshaft 22. Between the compressor and the turbine there is a rotor 25 with several rows of combustion chambers 26, which is mounted in a rotor housing 29. The rotor shell 29 is divided into several equal gas distribution angle zones 40. As shown in Figure 2, the rotor shell 29 is divided into three equal gas distribution angle zones 40 (in high-power rotor supercharged gas turbines, also Four gas distribution angle zones can be set), each gas distribution angle zone occupies an angle area of 120 degrees. From the starting position in each gas distribution angle zone 40 on the rotor shell 29 to the end position where the rotor 25 rotates in the direction of arrow 56, there are ventilation inlets 8 and ventilation outlets 7 at the same angle. . After the ventilation inlet 8 and the ventilation outlet 7, an ignition chamber 31 equipped with a spark plug 30, a first air outlet 1, and The second air outlet 2, the third air outlet 3, the fourth air outlet 4 and the fifth air outlet 5..., the corresponding power gas outlets after the ventilation outlet 7 are connected to the front of the turbine through the corresponding gas pipes. The corresponding air jets on the nozzle plate 37 are connected.
在压气机的出气端与换气进口8连接中,如图1所示,压气机21的出气端是经压缩空气输气管9与换气进口8相连通的,而换气出口7是经输气管17与喷口盘37上的喷气口7′相连通。在图1中,通过角度偏转画出了燃烧室26在转到换气进口8和换气出口7位置时把换气进口和换气出口进行沟通的状态,这时从压气机21流出的压缩空气经压缩空气输气管9和换气进口8充入燃烧室26,挤走燃烧室内的中压作功燃气,完成燃烧室内的中压换气过程,从换气出口7被排出的中压作功燃气再经相应的输气管17经喷气口7′喷向后侧的涡轮23。实际中,在压缩空气输气管9上还设有形成燃油混合气的燃油喷嘴(未画)。在图2实施例中的转子壳29上的三个配气角度区40内,在换气进口8和换气出口7之后,是依次设置了装有火花塞30的点火腔31、第一出气口1、第二出气口2、第三出气口3、第四出气口4、第五出气口5和第六出气口6,而各配气角度区40内的第一出气口1与第一输气管11相连通后,第一输气管的后侧是从涡轮壳24的外围向后延伸过涡轮壳,又伸进涡轮壳后部的尾喷管19内,并让第一输气管11的后端与相应的扩压喷口20相连通,使第一出气口1喷出的高温高压作功燃气能经第一输气管11和扩压喷口20向后喷出,让从第一出气口1排出的部分作功燃气能直接产生喷气作用力。而在第一出气口1之后的第二出气口2、第三出气口3、第四出气口4、第五出气口5和第六出气口6,则是分别经相应的输气管12、输气管13、输气管14、输气管15和输气管16与喷口盘37上的各相应喷气口相连通,让温度压力相应降低的作功燃气能第二出气口2和其后的各出气口依次降压向外喷出,再经相应的各自输气管从喷口盘37上各相应的喷气口喷向涡轮23,带动涡轮旋转作功,涡轮23旋转作功的同时也带动压气机21继续产生压缩空气。In the connection between the air outlet end of the compressor and the ventilation inlet 8, as shown in Figure 1, the air outlet end of the compressor 21 is connected to the ventilation inlet 8 through the compressed air transmission pipe 9, and the ventilation outlet 7 is connected through the air transmission pipe 9. The air pipe 17 is connected with the air jet 7' on the jet plate 37. In Figure 1, the angle deflection is used to illustrate the state in which the combustion chamber 26 communicates with the ventilation inlet and the ventilation outlet when it is rotated to the positions of the ventilation inlet 8 and the ventilation outlet 7. At this time, the compressed air flowing out from the compressor 21 is Air is charged into the combustion chamber 26 through the compressed air pipe 9 and the ventilation inlet 8, squeezing out the medium-pressure working gas in the combustion chamber, completing the medium-pressure ventilation process in the combustion chamber, and the medium-pressure working gas discharged from the ventilation outlet 7 The power gas is then sprayed through the corresponding gas pipe 17 through the injection port 7' to the turbine 23 on the rear side. In practice, the compressed air air pipe 9 is also provided with a fuel nozzle (not shown) for forming a fuel mixture. In the three gas distribution angle areas 40 on the rotor shell 29 in the embodiment of Figure 2, after the ventilation inlet 8 and the ventilation outlet 7, an ignition chamber 31 equipped with a spark plug 30 and a first air outlet are arranged in sequence. 1. The second air outlet 2, the third air outlet 3, the fourth air outlet 4, the fifth air outlet 5 and the sixth air outlet 6, and the first air outlet 1 and the first output in each air distribution angle area 40 After the gas pipes 11 are connected, the rear side of the first gas pipe 24 extends backward from the periphery of the turbine shell 24 through the turbine shell, and then extends into the tail nozzle 19 at the rear of the turbine shell, and allows the rear side of the first gas pipe 11 to The end is connected with the corresponding expansion nozzle 20, so that the high-temperature and high-pressure working gas ejected from the first air outlet 1 can be ejected backward through the first gas pipe 11 and the expansion nozzle 20, so that it can be discharged from the first air outlet 1 Part of the work gas can directly produce jet force. The second air outlet 2, the third air outlet 3, the fourth air outlet 4, the fifth air outlet 5 and the sixth air outlet 6 after the first air outlet 1 are respectively connected through the corresponding air pipes 12 and 12. The gas pipe 13, the gas pipe 14, the gas pipe 15 and the gas pipe 16 are connected with each corresponding jet port on the nozzle plate 37, so that the temperature and pressure of the functional gas energy can be reduced accordingly, the second gas outlet 2 and the subsequent gas outlets are sequentially The decompressed gas is sprayed outward, and then sprayed from the corresponding jets on the nozzle plate 37 to the turbine 23 through the corresponding gas pipes, driving the turbine to rotate and perform work. While the turbine 23 rotates and performs work, it also drives the compressor 21 to continue to generate compression. Air.
实际中,加大或减小第一出气口1的流通截面,便可增加或减少进入第一输气管11的作功燃气量,进而也能确定出高压燃气直喷推动力与涡轮喷气推动力之间的大小比例。在保证涡轮23能带动压气机21的条件下,应该尽可能让第一出气口1喷出更多的作功燃气,以增加高压作功燃气直喷产生的推动力。In practice, by increasing or decreasing the flow cross section of the first gas outlet 1, the amount of working gas entering the first gas pipe 11 can be increased or reduced, and thus the high-pressure gas direct injection propulsion force and the turbojet propulsion force can also be determined. size ratio between. Under the condition that the turbine 23 can drive the compressor 21, the first air outlet 1 should be allowed to eject more power gas as much as possible to increase the driving force generated by the direct injection of high-pressure power gas.
实际中,也可让各配气角度区40内与第一出气口1连通的各第一输气管11在向后延伸过涡轮壳24后,不必伸进尾喷管19,而是让第一输气管的后端与贴在尾喷管19外围上的扩压喷口20相连通的(未画)。In practice, each first gas pipe 11 connected to the first gas outlet 1 in each gas distribution angle area 40 can also be allowed to extend backward through the turbine shell 24 without extending into the tail nozzle 19, but to allow the first gas pipe 11 to extend backward through the turbine shell 24. The rear end of the gas pipe is connected to the diffuser nozzle 20 attached to the periphery of the tail nozzle 19 (not shown).
为了减少作功燃气流经第一输气管11时而产生的热量损失,至少应在第一输气管11上设置隔热层41。另外,实际中也可在第一输气管11后端处的扩压喷口17内设置 相应的加力喷油嘴,以便能灵活的增加喷气作用力。In order to reduce the heat loss generated when the power gas flows through the first gas pipeline 11 , at least a heat insulation layer 41 should be provided on the first gas pipeline 11 . In addition, in practice, it can also be provided in the diffusion nozzle 17 at the rear end of the first gas pipe 11 The corresponding afterburner injector can flexibly increase the jet force.
在把这种喷气分流式转子增压燃气轮机作为飞机动力时,由于能让燃烧室中的部分作功燃气直接向后喷射并产生更大的反喷推动力,不仅提高了转子增压燃气轮机的工作效率,而让余下的温度和压力相应降低的作功燃气去推动涡轮运转,也降低了涡轮叶片的工作温度,改善了涡轮叶片的运转条件,不必用特别耐高温的材料去制造涡轮叶片。When this type of jet-splitting rotor supercharged gas turbine is used as aircraft power, part of the work gas in the combustion chamber can be directly injected backwards and generate greater back-injection driving force, which not only improves the work of the rotor supercharged gas turbine. efficiency, and the remaining power gas with correspondingly lower temperature and pressure is used to drive the turbine operation, which also reduces the operating temperature of the turbine blades and improves the operating conditions of the turbine blades. There is no need to use particularly high-temperature resistant materials to manufacture the turbine blades.
在如图4所示的本发明第二实施例中,为了让从第一输气管11向后喷出的作功燃气能转化为更大的向前驱动力,是在第一输气管11后侧的喷气口之后又设置了双作用的外环叶片。这一实施例如图4所示,在转子壳29的各配气角度区40中(参看图2),与各配气角度区40内第一出气口1连通的各第一输气管11向后延伸到涡轮壳24后,在第一输气管11后端形成有喷气口38。在涡轮23后侧所设的末级叶片42是处在了涡轮壳24的外侧位置,这些末级叶片42的叶顶还与连结转环39相连结,并让连结转环处于涡轮壳24的外侧。连结转环前端面的直径尺寸与涡轮壳24后端面的直径尺寸相同,相当于涡轮壳24后端向后面尾喷管的延续,在连结转环39的外围还形成有双作用的外环叶片36,第一输气管11后端的喷气口38对准着连结转环39外围的外环叶片36。在转子25上的燃烧室26与转子壳29上的第一出气口1接通后,燃烧室内温度和压力最高的作功燃气会首先从第一出气口向外部分的喷出,经第一输气管后端的喷气口38吹动外环叶片36,让双作用的外环叶片旋转时相当于风扇那样能产生更大的向前推动力,在外环叶片的外围还设有风扇函道43,风扇函道经导向柱片45与涡轮壳24相连接。In the second embodiment of the present invention as shown in Figure 4, in order to convert the working gas ejected backward from the first gas pipe 11 into a greater forward driving force, the gas pipe 11 is installed behind the first gas pipe 11. Double-acting outer ring blades are installed behind the side jets. This embodiment is shown in Figure 4. In each gas distribution angle area 40 of the rotor shell 29 (see Figure 2), each first gas transmission pipe 11 connected with the first air outlet 1 in each gas distribution angle area 40 is rearward. After extending to the turbine housing 24 , an injection port 38 is formed at the rear end of the first gas pipe 11 . The last-stage blades 42 provided on the rear side of the turbine 23 are located outside the turbine shell 24. The blade tips of these final-stage blades 42 are also connected to the connecting swivel 39, and the connecting swivel is located at the outer side of the turbine shell 24. outside. The diameter size of the front end face of the connecting swivel is the same as the diameter size of the rear end face of the turbine shell 24, which is equivalent to the continuation of the rear end of the turbine shell 24 to the rear tail nozzle. Double-acting outer ring blades are also formed on the periphery of the connecting swivel 39. 36. The air jet 38 at the rear end of the first gas pipe 11 is aligned with the outer ring blades 36 connected to the periphery of the rotating ring 39 . After the combustion chamber 26 on the rotor 25 is connected to the first gas outlet 1 on the rotor shell 29, the work gas with the highest temperature and pressure in the combustion chamber will first be ejected from the first gas outlet to the outer part, and pass through the first gas outlet. The air jet 38 at the rear end of the gas pipe blows the outer ring blades 36, so that when the double-acting outer ring blades rotate, they can produce greater forward thrust like a fan. A fan duct 43 is also provided around the outer ring blades. , the fan duct is connected to the turbine shell 24 through the guide column piece 45.
喷气口38后面的双作用外环叶片36采用了流线型的截面(参看图6),流线型的中心线51基本上是一条直线,设在连结转环39外围的外环叶片具有较厚的弧形前面52和向后延伸、逐渐略变薄的迎风面53及背风面54。当然,为让不同半径处的外环叶片能均匀的向后排气,外环叶片的迎风角度会从叶根到叶顶会相应的扭转。这种双作用的外环叶片36被作功燃气能吹动及与空气流的作用如图6所示,从第一输气管后端喷气口38喷出的高温高压作功燃气沿箭头58吹动外环叶片36,使外环叶片受到沿箭头57所示的旋转作用力,让双作用的外环叶片36起到涡轮的作用。在外环叶片转过喷气口38后,外环叶片又会把从风扇函道43前侧进入的空气流沿箭头59所示方向加压向后排出,让双作用的外环叶片36又起到风扇作用,从而增加了燃气轮机的向前推动力。当然,双作用叶片32的截面形状即不是很好的涡轮叶片形状,也不是很好的风扇叶片形状,只能是折衷的被作功燃气吹动作功和作为风扇向后排气。The double-acting outer ring blade 36 behind the jet port 38 adopts a streamlined cross-section (see Figure 6). The streamlined centerline 51 is basically a straight line, and the outer ring blade located on the periphery of the connecting swivel 39 has a thicker arc shape. The front face 52 and the windward face 53 and the leeward face 54 extend rearwardly and gradually become slightly thinner. Of course, in order to allow the outer ring blades at different radii to exhaust air evenly backwards, the windward angle of the outer ring blades will be twisted accordingly from the blade root to the blade tip. This double-acting outer ring blade 36 is blown by the power gas energy and interacts with the air flow as shown in Figure 6. The high-temperature and high-pressure power gas ejected from the jet port 38 at the rear end of the first gas pipe blows along the arrow 58. Moving the outer ring blades 36 causes the outer ring blades to receive a rotational force as indicated by arrow 57, allowing the double-acting outer ring blades 36 to function as turbines. After the outer ring blades rotate through the air outlet 38, the outer ring blades will pressurize the air flow entering from the front side of the fan duct 43 and discharge it backward in the direction shown by arrow 59, allowing the double-acting outer ring blades 36 to start again. to the fan function, thereby increasing the forward thrust of the gas turbine. Of course, the cross-sectional shape of the double-acting blade 32 is not a very good turbine blade shape, nor is it a very good fan blade shape. It can only be a compromise between being used for power gas blowing work and being used as a fan to exhaust air backward.
实际中,在双作用的外环叶片36被制成较长尺寸时,如图5所示,相应的各第一 输气管11后侧的喷气口38也采用扁长形状,并且相对涡轮轴心倾斜布置,让扁长喷气口的一侧远离轴心,另一侧的扁长喷气口则靠近轴心,长形尺寸的喷气口38所占宽度让喷气口能对应多个外环叶片36,使喷气口38喷出的气流可同时吹到多个双作用外环叶片36上。而喷气口38扁形窄处的径向尺寸较小于外环叶片36的半径方向的长度,让喷气口38喷出的气流只能吹在双作用叶片的部分面积上,倾斜布置的喷气口38也使转过喷气口的外环叶片能被喷出的气流从叶片的叶顶延续的吹到叶片根部,让被吹动的双作用叶片不会受力太大的作功燃气冲击力。由于在转子壳29上设置了三个配气角度区40(参看图2),在每个配气角度区的第一输气管11后侧的喷气口38都伸向后面的双作用外环叶片36后,如图5中所示,就会有三个间隔120角的喷气口38对准着双作用外环叶片。In practice, when the double-acting outer ring blade 36 is made into a longer size, as shown in Figure 5, the corresponding first The ejection port 38 on the rear side of the gas pipe 11 also adopts an elongated and oblong shape, and is arranged obliquely relative to the axis of the turbine, so that one side of the elongated elongated ejection port is far away from the axis center, and the elongated elongated ejection port on the other side is close to the axis center. The size of the width of the air outlet 38 allows the air outlet to correspond to multiple outer ring blades 36, so that the air flow ejected from the air outlet 38 can blow onto multiple double-acting outer ring blades 36 at the same time. The radial size of the flat and narrow part of the nozzle 38 is smaller than the length of the outer ring blade 36 in the radial direction, so that the air flow ejected from the nozzle 38 can only blow on part of the area of the double-action blade. The obliquely arranged nozzle 38 It also enables the outer ring blades that rotate through the air jets to be continuously blown by the ejected airflow from the tip of the blade to the root of the blade, so that the blown double-action blade will not be subject to too much impact force of the working gas. Since three gas distribution angle zones 40 are provided on the rotor shell 29 (see Figure 2), the air jets 38 on the rear side of the first gas delivery pipe 11 in each gas distribution angle zone extend to the rear double-acting outer ring blades. 36, as shown in Figure 5, there will be three air jets 38 spaced 120 degrees apart and aligned with the double-acting outer ring blades.
如双作用的外环叶片36尺寸较短,让各第一输气管11后侧喷气口38的径向尺寸与双作用外环叶片36半径方向的长度尺寸基本相同即可(未画)。If the double-acting outer ring blades 36 are shorter in size, the radial size of the air jets 38 at the rear of each first gas pipe 11 can be basically the same as the radial length of the double-acting outer ring blades 36 (not shown).
在图4所示的第二实施例转子增压燃气轮机中,虽然从喷气口38喷出的是温度最高的作功燃气流,但双作用外环叶片36被高温气流吹过后,又随后与前面进入的冷空气相作用而被冷却,使双作用的外环叶片工作温度不会很高,不必再对叶片采用另外的冷却。In the rotor supercharged gas turbine of the second embodiment shown in FIG. 4 , although the highest temperature working gas flow is ejected from the injection port 38 , the double-acting outer ring blades 36 are blown by the high-temperature air flow and then merge with the front ones. The incoming cold air interacts with each other and is cooled, so that the operating temperature of the double-acting outer ring blades will not be very high, and there is no need to use additional cooling for the blades.
喷气分流式转子增压燃气轮机的第三实施例如图7所示,燃气轮机的压气机21、转子壳29及转子25与第一和第二实施例基本相同,包括压气机21和通过机轴相连接的涡轮23,在压气机与涡轮之间设有带若干排燃烧室26的转子25,该转子装在转子壳29内,在转子壳29上划分有均等的若干配气角度区40(参看图2),从转子壳29上每个配气角度区40内的起始位置、到顺转子25旋转方向的末端位置处,依次设有处在同一角度内的换气进口8与换气出口7,在换气进口和换气出口之后,依次形成装有火花塞30的点火腔31、第一出气口1、第二出气口2、第三出气口3、第四出气口4及第五出气口5……,换气出口7和其后相应的出气口分别经相应的输气管再与涡轮之前的喷口盘37上相应的喷气口相连通。The third embodiment of the jet split rotor supercharged gas turbine is shown in Figure 7. The compressor 21, rotor shell 29 and rotor 25 of the gas turbine are basically the same as those in the first and second embodiments, including the compressor 21 and the compressor 21 connected through the crankshaft. The turbine 23 is provided with a rotor 25 with several rows of combustion chambers 26 between the compressor and the turbine. The rotor is installed in the rotor shell 29, and the rotor shell 29 is divided into a number of equal gas distribution angle zones 40 (see figure 2), from the starting position in each gas distribution angle zone 40 on the rotor shell 29 to the end position along the rotation direction of the rotor 25, there are ventilation inlets 8 and ventilation outlets 7 at the same angle. , after the ventilation inlet and the ventilation outlet, an ignition chamber 31 equipped with a spark plug 30, a first air outlet 1, a second air outlet 2, a third air outlet 3, a fourth air outlet 4 and a fifth air outlet are formed in sequence. 5..., the ventilation outlet 7 and the corresponding air outlets thereafter are connected to the corresponding jet ports on the nozzle plate 37 in front of the turbine through corresponding gas pipes.
与第一实施例相比,第三实施例的不同之处在于,在转子壳29上除分开布置的第一输气管11以外,还分开布置了另外相应的输气管,并让这些分开布置的输气管利用其后侧的喷气口再吹动另外设置的外环叶片。这些分开布置的输气管和所设的外环叶片如图7中所示,在涡轮23后侧所设的末级叶片42是处在了涡轮壳24的外侧位置,这些末级叶片42的叶顶还与外围的连结转环39相连结,并让连结转环处于涡轮壳24的后面,连结转环前端面的直径尺寸与涡轮壳24后端面的直径尺寸相同,相当于涡轮壳24后端向后面尾喷管的延续。在连结转环39上还形成有外围的外环叶片32,在外 环叶片的外围设有把外环叶片罩在其中的扩口涡轮壳27,该扩口涡轮壳经挡板环28与涡轮壳24的后侧相连。Compared with the first embodiment, the difference of the third embodiment is that in addition to the separately arranged first gas pipeline 11, other corresponding gas pipelines are also separately arranged on the rotor shell 29, and these separately arranged The gas pipe uses the air jet on its rear side to blow the additional outer ring blades. These separately arranged gas transmission pipes and the provided outer ring blades are shown in Figure 7. The final stage blades 42 provided on the rear side of the turbine 23 are located outside the turbine shell 24. The blades of these final stage blades 42 The top is also connected to the peripheral connecting swivel 39, and the connecting swivel is located behind the turbine shell 24. The diameter of the front end face of the connecting swivel is the same as the diameter of the rear end face of the turbine shell 24, which is equivalent to the rear end of the turbine shell 24. Continuation of the tail nozzle toward the rear. A peripheral outer ring blade 32 is also formed on the connecting swivel 39. A flared turbine shell 27 is provided on the periphery of the ring blades, which covers the outer ring blades. The flared turbine shell is connected to the rear side of the turbine shell 24 via a baffle ring 28 .
在末级叶片42上经连结转环39形成有外环叶片32后,各配气角度区40内的第一出气口1和中间及最后位置的两个出气口分别经各自的输气管沿涡轮壳24外围向后延伸,在各输气管后端形成有喷气口38,并让输气管后端的喷气口穿过扩口涡轮壳27与涡轮壳24之间的挡板环28后,再对准着后面的外环叶片32。如果图7中的第三实施例采用与第一和第二实施例相同的转子壳结构,在转子壳上便划分有三个配气角度区40(参看图2),并在转子壳29的每个配气角度区40内设置了第一至第六个出气口,在第一出气口1经第一输气管11利用输气管后端的喷气口38穿过扩口涡轮壳与涡轮壳之间的挡板环28并对准着后面的外环叶片32后,排在中间及最后位置的两个出气口的输气管也是向外分开布置的,即让第四出气口4(或第三出气口3)和第六出气口6的输气管14和输气管16也向外分开布置,并让两输气管后侧的相应喷气口38穿过挡板环28对准后面的外环叶片32。为使各喷气口能排满扩口涡轮壳27与涡轮壳24之间的环形喷气口布置空间,各输气管后端的各喷气口38都形成了较宽的尺寸。After the outer ring blades 32 are formed on the final stage blades 42 through the connecting swivel 39, the first air outlet 1 in each valve angle area 40 and the two air outlets at the middle and last positions are passed along the turbine through their respective air pipes. The outer periphery of the shell 24 extends backward, and an air jet 38 is formed at the rear end of each gas pipeline. The jet port at the rear end of the gas pipeline passes through the baffle ring 28 between the expanded turbine shell 27 and the turbine shell 24, and then is aligned. The outer ring blade 32 at the rear. If the third embodiment in Figure 7 adopts the same rotor shell structure as the first and second embodiments, the rotor shell is divided into three valve angle zones 40 (see Figure 2), and each of the rotor shells 29 is The first to sixth air outlets are provided in a gas distribution angle area 40. The first air outlet 1 passes through the first air pipe 11 and uses the jet port 38 at the rear end of the air pipe to pass through the gap between the flared turbine shell and the turbine shell. After the baffle ring 28 is aligned with the outer ring blade 32 at the rear, the air delivery pipes of the two air outlets in the middle and last positions are also arranged separately outward, that is, the fourth air outlet 4 (or the third air outlet 3) The gas delivery pipe 14 and the gas delivery pipe 16 of the sixth air outlet 6 are also arranged outwardly separately, and the corresponding air jets 38 on the rear side of the two gas delivery pipes pass through the baffle ring 28 and are aligned with the rear outer ring blades 32. In order to enable each jet port to fill the annular jet port arrangement space between the expanded turbine shell 27 and the turbine shell 24, each jet port 38 at the rear end of each gas delivery pipe is formed in a wider size.
在转子壳29上各出气口的相应输气管布置中,除了各配气角度区40内的第一出气口1和中间及最后位置的两个出气口之外,转子壳29上各配气角度区40内剩余的各出气口则分别经相应的各自输气管与涡轮23之前的喷口盘37上各相应的喷气口相连通。In the corresponding air pipe arrangement of each air outlet on the rotor shell 29, in addition to the first air outlet 1 in each air distribution angle zone 40 and the two air outlets in the middle and last positions, each air distribution angle on the rotor shell 29 The remaining air outlets in the zone 40 are respectively connected to the corresponding jets on the nozzle plate 37 in front of the turbine 23 through corresponding air pipes.
在图7的第三实施例中,因把第一出气口、第四出气口和第六出气口的相应输气管进行了分开布置(各出气口的排列参看图2),转子壳29各配气角度区40内剩余的第二出气口2、第三出气口3和第五出气口便会经相应的输气管与涡轮23之前的喷口盘37上各相应的喷气口相连通。在图7中,通过偏转角度,描绘了转子上的燃烧室26转到换气进口8与换气出口7位置时把换气进口与换气出口沟通,并让燃烧室内进行中压换气的过程,换气出口7经输气管17通向喷口盘37上相应的喷气口。In the third embodiment of Figure 7, since the corresponding air pipes of the first air outlet, the fourth air outlet and the sixth air outlet are arranged separately (see Figure 2 for the arrangement of each air outlet), the rotor shell 29 is equipped with The remaining second air outlet 2, third air outlet 3 and fifth air outlet in the air angle area 40 will be connected to the corresponding air jets on the nozzle plate 37 in front of the turbine 23 through corresponding air pipes. In Figure 7, through the deflection angle, it is depicted that when the combustion chamber 26 on the rotor is rotated to the position of the ventilation inlet 8 and the ventilation outlet 7, the ventilation inlet and the ventilation outlet are communicated, and medium-pressure ventilation is performed in the combustion chamber. In the process, the ventilation outlet 7 leads to the corresponding air jet on the nozzle plate 37 through the gas pipe 17.
在一般的燃气轮机中,涡轮前的温度越高,燃气轮机的效率也越高,但要求涡轮叶片能承受作功燃气的更高温度,增加了涡轮叶片的制造成本。在图7中的第三实施例的喷气分流式转子增压燃气轮机中,因最高温度的作功燃气已经从第一出气口喷出,从其余出气口流出的作功燃气温度已经相对降低,相应降低了涡轮叶片的工作温度,改善了涡轮运转条件。In a general gas turbine, the higher the temperature in front of the turbine, the higher the efficiency of the gas turbine. However, the turbine blades are required to withstand the higher temperature of the power gas, which increases the manufacturing cost of the turbine blades. In the jet-splitting rotor supercharged gas turbine of the third embodiment in Figure 7, since the highest-temperature power gas has been ejected from the first gas outlet, the temperature of the power gas flowing out from the other gas outlets has been relatively reduced, correspondingly The operating temperature of the turbine blades is reduced and the turbine operating conditions are improved.
由于从第一出气口喷出高温作功燃气也会让被吹动的叶片承受很高的燃气温度,为避免外环叶片过热,也可如图7中所示,在从压气机21之后的各压缩空气输气管9上还可分别引出设有中间冷却器49的冷气输气管48,同时让冷气输气管数量与转子 壳上配气角度区40的数量相同,在这些冷气输气管后端形成有冷气喷气口50,在让冷气输气管48均布排列在其它的输气管之间并穿过连结着扩口涡轮壳27与涡轮壳24的挡板环28后,再让冷气输气管后端的冷气喷气口对准着后面的外环叶片32,用冷却过的压缩空气吹动并冷却外环叶片32,使外环叶片的温度不会特别的升高,也使得涡轮叶片不必用特别的耐高温材料制造。Since the high-temperature power gas sprayed from the first air outlet will also cause the blown blades to withstand high gas temperatures, in order to avoid overheating of the outer ring blades, as shown in Figure 7, the gas after the compressor 21 can also be Each compressed air pipe 9 can also lead to a cold air pipe 48 provided with an intercooler 49, and at the same time, the number of cold air pipes and the rotor The number of air distribution angle zones 40 on the shell is the same. Cold air jets 50 are formed at the rear ends of these cold air air pipes. The cold air air pipes 48 are evenly arranged between other air pipes and connected through the expanded turbine shell. 27 and the baffle ring 28 of the turbine shell 24, then align the cold air jet at the rear end of the cold air pipe with the outer ring blades 32 at the back, and use the cooled compressed air to blow and cool the outer ring blades 32, so that the outer ring The temperature of the blades will not rise particularly, and the turbine blades do not need to be made of special high-temperature resistant materials.
实际中,涡轮23后侧的末级叶片42和连成一体的外环叶片32即可装在涡轮23的转子体33上,也可以如图7所示,让涡轮23后侧的末级叶片42和连成一体的外环叶片32装在动力输出轴35上的单独转子盘34上,让这台转子增压燃气轮机以动力输出轴35向外输出动力。当然为了让外环叶片32能产生更大的动力,也可以向后加长连结转环39,在外环叶片32后面再设置一级外环叶片(未画)。由于图7实施例中的喷气分流式转子增压燃气轮机主要靠动力输出轴35输出动力,可作为螺旋桨飞机、直升机、车辆、船舶和电站的动力装置。In practice, the final blade 42 on the rear side of the turbine 23 and the integrated outer ring blade 32 can be installed on the rotor body 33 of the turbine 23, or as shown in Figure 7, the final blade 42 on the rear side of the turbine 23 can be installed on the rotor body 33 of the turbine 23. 42 and the integrated outer ring blades 32 are installed on a separate rotor disk 34 on the power output shaft 35, allowing this rotor supercharged gas turbine to output power outward through the power output shaft 35. Of course, in order to allow the outer ring blades 32 to generate greater power, the connecting swivel 39 can also be lengthened backwards, and another level of outer ring blades (not shown) can be provided behind the outer ring blades 32 . Since the jet split rotor supercharged gas turbine in the embodiment of FIG. 7 mainly outputs power through the power output shaft 35, it can be used as a power device for propeller aircraft, helicopters, vehicles, ships and power stations.
喷气分流式转子增压燃气轮机的第四实施例如图8所示,在基本构成上与第一、第二和第三实施例中相同,也包括压气机21和通过机轴22相连接的涡轮23。在压气机与涡轮之间设有带若干排燃烧室26的转子25,该转子装在转子壳29内。在转子壳29上划分有均等的若干配气角度区40(参看图2),从转子壳29上每个配气角度区40内的起始位置、到顺转子25旋转方向的末端位置处,依次设有处在同一角度内的换气进口8与换气出口7,在换气进口和换气出口之后,依次形成装有火花塞30的点火腔31、第一出气口1、第二出气口2、第三出气口3、第四出气口4及第五出气口5……,换气出口7和其后相应的出气口分别经相应的输气管再与涡轮之前的喷口盘37上相应的喷气口相连通。在图8的第四实施例中,转子壳29的结构也可与第一实施例相同(参看图2),在转子壳上设置三个配气角度区40(大功率机型可设置四个配气角度区),并在每个配气角度区设置了第一出气口1、第二出气口2、第三出气口3、第四出气口4、第五出气口5和第六出气口6,设置了六个出气口。The fourth embodiment of the jet split rotor supercharged gas turbine is shown in Figure 8. Its basic structure is the same as that of the first, second and third embodiments, and also includes a compressor 21 and a turbine 23 connected through a crankshaft 22. . Between the compressor and the turbine there is a rotor 25 with several rows of combustion chambers 26, which is mounted in a rotor housing 29. The rotor shell 29 is divided into a number of equal gas distribution angle zones 40 (see Figure 2). From the starting position in each gas distribution angle zone 40 on the rotor shell 29 to the end position along the rotation direction of the rotor 25, A ventilation inlet 8 and a ventilation outlet 7 are provided at the same angle in sequence. After the ventilation inlet and the ventilation outlet, an ignition chamber 31 equipped with a spark plug 30, a first air outlet 1, and a second air outlet are formed in sequence. 2. The third air outlet 3, the fourth air outlet 4 and the fifth air outlet 5..., the ventilation outlet 7 and the corresponding air outlets thereafter pass through the corresponding gas pipes and then connect to the corresponding nozzle plate 37 in front of the turbine. The jets are connected. In the fourth embodiment of Fig. 8, the structure of the rotor shell 29 can also be the same as that of the first embodiment (see Fig. 2). Three gas distribution angle zones 40 are provided on the rotor shell (the high-power model can be provided with four gas distribution angle area), and a first air outlet 1, a second air outlet 2, a third air outlet 3, a fourth air outlet 4, a fifth air outlet 5 and a sixth air outlet are provided in each air distribution angle area 6. Six air outlets are set up.
第四实施例的喷气分流式转子增压燃气轮机主要是作为喷气飞机的动力装置,如图8所示,在涡轮23后侧所设的末级叶片42处在涡轮壳24的外侧位置,这些末级叶片42的叶顶与连结转环39相连结,连结转环处于涡轮壳24的后面,并且连结转环前端面的直径尺寸与涡轮壳24后端面的直径尺寸相同,相当于涡轮壳24后端向后面尾喷管的延续。在连结转环39上还形成有外围的外环叶片32,在外环叶片32的叶顶又形成有外围的连结外环41,在连结外环上还形成有风扇叶片44。The jet split-rotor supercharged gas turbine of the fourth embodiment is mainly used as a power device for a jet aircraft. As shown in Figure 8, the final blades 42 provided on the rear side of the turbine 23 are located outside the turbine casing 24. The tip of the stage blade 42 is connected to the connecting swivel ring 39. The connecting swivel ring is located behind the turbine shell 24, and the diameter of the front end face of the connecting swivel ring is the same as the diameter of the rear end face of the turbine shell 24, which is equivalent to the diameter of the rear end face of the turbine shell 24. The continuation of the tail nozzle from the end to the rear. A peripheral outer ring blade 32 is also formed on the connecting rotating ring 39, a peripheral connecting outer ring 41 is formed on the blade tip of the outer ring blade 32, and a fan blade 44 is also formed on the connecting outer ring.
在涡轮壳24的后侧外围设有喷口壳46,涡轮壳24的后侧经挡板环28与外围所设的喷口壳46后侧相连,喷口壳46后端面的直径尺寸与后面的设有叶片的连结外环 41前端面的直径尺寸相同,相当于喷口壳46后端经连结外环41向后面的延续。在风扇叶片44的外围还设有把风扇叶片罩在其中的风扇函道43,风扇函道通过导向柱片45与涡轮壳24外围的喷口壳46相连,让这种结构的喷气分流式转子增压燃气轮机成为一种风扇函道后置式喷气发动机。A nozzle shell 46 is provided on the rear periphery of the turbine shell 24. The rear side of the turbine shell 24 is connected to the rear side of the nozzle shell 46 provided on the periphery through the baffle ring 28. The diameter size of the rear end surface of the nozzle shell 46 is consistent with the rear end face of the nozzle shell 46. connecting outer ring of blade The diameter of the front end face of 41 is the same, which is equivalent to the continuation of the rear end of the nozzle shell 46 to the rear through the connecting outer ring 41. There is also a fan duct 43 that covers the fan blades on the periphery of the fan blade 44. The fan duct is connected to the nozzle shell 46 on the periphery of the turbine shell 24 through the guide column 45, so that the jet split rotor with this structure can increase the The pressure gas turbine becomes a fan-ducted rear-mounted jet engine.
在转子壳29上各出气口的输气管布置中,各配气角度区40内的第一出气口1和中间及最后位置的两个出气口分别经各自的输气管沿涡轮壳24外围向后延伸,并让各输气管后端所形成的喷气口38穿过喷口壳46与涡轮壳24之间的挡板环28对准着后面的外环叶片32。各输气管后端的喷气口尺寸较宽,如图9所示,使各喷气口38能排满喷口壳46与涡轮壳24之间的环形喷气口布置空间。除了各配气角度区40内的第一出气口1和中间及最后位置的两个出气口之外,剩余的各出气口则分别经相应的各自输气管与涡轮23之前的喷口盘37上各相应的喷气口相连通。In the arrangement of the gas delivery pipes of the air outlets on the rotor shell 29, the first air outlet 1 in each gas distribution angle zone 40 and the two air outlets at the middle and last positions are respectively passed through their respective gas delivery pipes and rearward along the periphery of the turbine shell 24. Extend, and allow the jet ports 38 formed at the rear ends of each gas delivery pipe to pass through the baffle ring 28 between the jet housing 46 and the turbine housing 24 to align with the rear outer ring blades 32 . The size of the air jets at the rear end of each gas pipe is relatively wide, as shown in FIG. 9 , so that each air jet 38 can fill the annular air jet arrangement space between the nozzle housing 46 and the turbine housing 24 . In addition to the first air outlet 1 and the two air outlets in the middle and last positions in each valve angle area 40, the remaining air outlets pass through the corresponding air pipes and the nozzle plate 37 in front of the turbine 23. The corresponding jets are connected.
在转子壳29上的各出气口(参看图2)与各输气管的连接布局中,分开布置的第一出气口1经输气管11通向喷口壳与涡轮壳之间的挡板环28,并让输气管后端的喷气口38对准后面的外环叶片32。在第一出气口之后,如图9所示,可让中间及最后位置的第四出气口和第六出气口的相应输气管14和输气管16通向挡板环28,让温度和压力较高的作功燃气去推动外环叶片32,并带动外环叶片外围的风扇叶片44,让这部分作功燃气通过风扇叶片产生更大的向前推动力。而转子壳上各配气角度区40中其余的第二出气口2、第三出气口3和第五出气口5的相应输气管12、输气管13和输气管15便会与涡轮23之前的喷口盘37上各相应的喷气口相连通,让温度相应降低的作功燃气去推动涡轮壳24内的涡轮23旋转作功,改善了涡轮的运转条件。In the connection layout of each air outlet (see Figure 2) on the rotor shell 29 and each gas delivery pipe, the separately arranged first air outlet 1 leads to the baffle ring 28 between the nozzle shell and the turbine shell through the gas delivery pipe 11, And let the jet port 38 at the rear end of the gas pipe be aligned with the outer ring blade 32 at the back. After the first air outlet, as shown in Figure 9, the corresponding air pipes 14 and 16 of the fourth air outlet and the sixth air outlet in the middle and last position can be allowed to lead to the baffle ring 28, so that the temperature and pressure are relatively high. The high power gas pushes the outer ring blades 32 and drives the fan blades 44 on the periphery of the outer ring blades, allowing this part of the power gas to generate greater forward thrust through the fan blades. The corresponding gas delivery pipes 12, 13 and 15 of the remaining second air outlet 2, third air outlet 3 and fifth air outlet 5 in each air distribution angle zone 40 on the rotor shell will be connected with those in front of the turbine 23. The corresponding jets on the nozzle plate 37 are connected to each other, allowing the work gas with a correspondingly lower temperature to push the turbine 23 in the turbine shell 24 to rotate and work, thereby improving the operating conditions of the turbine.
由于风扇叶片的转速相对降低,涡轮23后面的由末级叶片42、外环叶片32和风扇叶片44构成的结构体是通过轴承装在涡轮的转子体33与后侧的尾锥47之间的。Since the rotational speed of the fan blades is relatively low, the structure behind the turbine 23 consisting of the final blade 42, the outer ring blade 32 and the fan blade 44 is installed between the rotor body 33 of the turbine and the rear tail cone 47 through bearings. .
由于从第一出气口喷出高温作功燃气温度很高,为避免外环叶片过热,如图8所示,从压气机21之后的各压缩空气输气管9上还分别引出设有中间冷却器49的冷气输气管48,中间冷却器49装在冷却器壳60中,冷空气从冷却器壳上的进风口61进入,带走流经中间冷却器49中压缩空气的压缩热量后,再从冷却器壳上的出风口62流出。从中间冷却器49接出的冷气输气管48数量与转子壳上配气角度区40的数量相同,这些冷气输气管后端也形成有冷气喷气口50,在让冷气输气管48均布排列在其它的输气管之间并穿过连结着喷口壳46与涡轮壳24的挡板环28后,再让冷气输气管后端的冷气喷气口50对准着后面的外环叶片32。各冷气输气管后端冷气喷气口50的位置如图9所示,分别设在了输气管16的后面,让被高温作功燃气吹动的外环叶片32不会过热。 Since the high-temperature power gas sprayed from the first air outlet has a very high temperature, in order to prevent the outer ring blades from overheating, as shown in Figure 8, each compressed air pipe 9 after the compressor 21 is also provided with an intercooler. The cold air delivery pipe 48 of 49 and the intercooler 49 are installed in the cooler shell 60. The cold air enters from the air inlet 61 on the cooler shell and takes away the compression heat of the compressed air flowing through the intercooler 49 and then from The air flows out from the air outlet 62 on the cooler shell. The number of cold air delivery pipes 48 connected from the intercooler 49 is the same as the number of air distribution angle areas 40 on the rotor shell. Cold air jets 50 are also formed at the rear ends of these cold air delivery pipes, so that the cold air delivery pipes 48 are evenly arranged on the After the other air pipes pass through the baffle ring 28 connecting the nozzle shell 46 and the turbine shell 24, the cold air jets 50 at the rear end of the cold air air pipes are aligned with the outer ring blades 32 at the rear. The positions of the cold air jets 50 at the rear end of each cold air pipe are shown in Figure 9 and are respectively located behind the gas pipe 16 so that the outer ring blades 32 blown by the high-temperature power gas will not be overheated.

Claims (10)

  1. 喷气分流式转子增压燃气轮机,包括压气机(21)和通过机轴相连接的涡轮(23),在压气机与涡轮之间设有带若干排燃烧室(26)的转子(25),该转子装在转子壳(29)内,在转子壳(29)上划分有均等的若干配气角度区(40),从转子壳(29)上每个配气角度区(40)内的起始位置、到顺转子(25)旋转方向的末端位置处,依次设有处在同一角度内的换气进口(8)与换气出口(7),在换气进口和换气出口之后,依次形成装有火花塞(30)的点火腔(31)、第一出气口(1)、第二出气口(2)、第三出气口(3)、第四出气口(4)及第五出气口(5)……,压气机(21)的出气端经压缩空气输气管(9)与换气进口(8)相连通,换气出口(7)和其后相应的出气口分别经相应的输气管再与涡轮之前的喷口盘(37)上相应的喷气口相连通,其特征在于:在各配气角度区(40)内的第一出气口(1)与第一输气管(11)相连通后,第一输气管的后侧是从涡轮壳(24)的外围向后延伸过涡轮壳,让第一出气口(1)喷出的高温高压作功燃气能从第一输气管向后喷出,在第一出气口(1)之后的第二出气口(2)、第三出气口(3)、第四出气口(4)及第五出气口(5)……则分别经相应的各自输气管与涡轮(23)之前的喷口盘(37)上各相应的喷气口相连通。A jet split-flow rotor supercharged gas turbine includes a compressor (21) and a turbine (23) connected through a crankshaft. A rotor (25) with several rows of combustion chambers (26) is provided between the compressor and the turbine. The rotor is installed in the rotor shell (29). The rotor shell (29) is divided into a number of equal gas distribution angle zones (40). From the starting point of each gas distribution angle zone (40) on the rotor shell (29) position, to the end position along the rotation direction of the rotor (25), there are ventilation inlets (8) and ventilation outlets (7) at the same angle. After the ventilation inlet and the ventilation outlet, a ventilation inlet (8) and a ventilation outlet (7) are formed in sequence. The ignition chamber (31) equipped with the spark plug (30), the first air outlet (1), the second air outlet (2), the third air outlet (3), the fourth air outlet (4) and the fifth air outlet ( 5)..., the air outlet of the compressor (21) is connected to the ventilation inlet (8) through the compressed air pipe (9), and the ventilation outlet (7) and the subsequent corresponding air outlet are connected through the corresponding gas pipes. Then it is connected with the corresponding jet port on the nozzle plate (37) before the turbine, which is characterized in that: the first air outlet (1) in each gas distribution angle zone (40) is connected with the first gas pipe (11) Finally, the rear side of the first gas pipe extends backward through the turbine shell from the periphery of the turbine shell (24), so that the high-temperature and high-pressure working gas ejected from the first gas outlet (1) can be sprayed backward from the first gas pipe. out, the second air outlet (2), the third air outlet (3), the fourth air outlet (4) and the fifth air outlet (5)... after the first air outlet (1) are passed through the corresponding Each gas delivery pipe is connected with each corresponding jet port on the nozzle plate (37) before the turbine (23).
  2. 根据权利要求1所述的喷气分流式转子增压燃气轮机,其特征在于:与各配气角度区(40)内第一出气口(1)连通的各第一输气管(11)向后延伸过涡轮壳(24)后,又伸进涡轮壳后部的尾喷管(19)内,并让第一输气管(11)的后端与相应的扩压喷口(20)相连通。The jet split rotor supercharged gas turbine according to claim 1, characterized in that: each first gas transmission pipe (11) connected to the first gas outlet (1) in each gas distribution angle zone (40) extends backward through After the turbine shell (24), it extends into the tail nozzle (19) at the rear of the turbine shell, and connects the rear end of the first gas delivery pipe (11) with the corresponding expansion nozzle (20).
  3. 根据权利要求1所述的喷气分流式转子增压燃气轮机,其特征在于:与各配气角度区(40)内第一出气口(1)连通的各第一输气管(11)向后延伸过涡轮壳(24)后,第一输气管的后端又与贴在尾喷管(19)外围上的扩压喷口(20)相连通。The jet split rotor supercharged gas turbine according to claim 1, characterized in that: each first gas transmission pipe (11) connected to the first gas outlet (1) in each gas distribution angle zone (40) extends backward through Behind the turbine shell (24), the rear end of the first gas pipe is connected to the expansion nozzle (20) attached to the periphery of the tail nozzle (19).
  4. 根据权利要求1所述的喷气分流式转子增压燃气轮机,其特征在于:与各配气角度区(40)内第一出气口(1)连通的各第一输气管(11)向后延伸到涡轮壳(24)后,在第一输气管(11)后端形成有喷气口(38),在涡轮(23)后侧所设的末级叶片(42)是处在涡轮壳(24)的外侧位置,这些末级叶片(42)的叶顶还与连结转环(39)相连结,并让连结转环处于涡轮壳(24)的外侧,连结转环前端面的直径尺寸与涡轮壳(24)后端面的直径尺寸相同,在连结转环(39)的外围形成有双作用的外环叶片(36),第一输气管(11)后端的喷气口(38)对准着连结转环(39)外围的外环叶片(36),在外环叶片的外围还设有风扇函道(43),风扇函道经导向柱片(45)与涡轮壳(24)相连接,双作用的外环叶片(36)采用了流线型截面,流线型的中心线(51) 基本上是一条直线,具有较厚的弧形前面(52)和向后延伸、逐渐略变薄的迎风面(53)及背风面(54),从第一输气管后端喷气口(38)喷出的高温高压作功燃气吹动外环叶片(36)使外环叶片起到涡轮的作用,在外环叶片转过喷气口后,外环叶片又会把从风扇函道(43)前侧进入的空气流加压向后排出,让外环叶片又起到风扇作用。The jet split rotor supercharged gas turbine according to claim 1, characterized in that: each first gas transmission pipe (11) connected to the first gas outlet (1) in each gas distribution angle zone (40) extends backward to Behind the turbine shell (24), a jet opening (38) is formed at the rear end of the first gas pipe (11), and the final blade (42) provided on the rear side of the turbine (23) is located at the center of the turbine shell (24). At the outer position, the blade tips of these final blades (42) are also connected to the connecting swivel (39), and the connecting swivel is located outside the turbine shell (24). The diameter of the front end face of the connecting swivel is in line with the turbine shell (24). 24) The diameters of the rear end faces are the same, and double-acting outer ring blades (36) are formed on the periphery of the connecting swivel (39). The jet port (38) at the rear end of the first gas pipe (11) is aligned with the connecting swivel. (39) The outer ring blades (36) are also provided with a fan duct (43) on the periphery of the outer ring blades. The fan duct is connected to the turbine shell (24) through the guide column piece (45). The double-acting The outer ring blades (36) adopt a streamlined cross-section and a streamlined center line (51) It is basically a straight line, with a thicker arc front (52) and a windward side (53) and a leeward side (54) that extend backward and gradually become slightly thinner, starting from the jet outlet (38) at the rear end of the first gas pipe The ejected high-temperature and high-pressure power gas blows the outer ring blades (36), causing the outer ring blades to function as turbines. After the outer ring blades rotate through the air jets, the outer ring blades turn the air from the front of the fan duct (43) The air flow entering from the side is pressurized and discharged backward, allowing the outer ring blades to function as a fan again.
  5. 根据权利要求4所述的喷气分流式转子增压燃气轮机,其特征在于:双作用的外环叶片(36)被制成较长尺寸时,相应的各第一输气管(11)后侧的喷气口(38)也采用扁长形状,并且相对涡轮轴心倾斜布置,让扁长喷气口的一侧远离轴心,另一侧的扁长喷气口则靠近轴心,长形尺寸的喷气口(38)所占宽度让喷气口能对应多个外环叶片(36),而喷气口(38)扁形窄处的径向尺寸较小于外环叶片(36)的半径方向的长度,使转过喷气口(38)的外环叶片能被喷出的气流从叶片的叶顶延续的吹到叶片根部。The jet split rotor supercharged gas turbine according to claim 4, characterized in that when the double-acting outer ring blades (36) are made into a longer size, the corresponding jets on the rear side of each first gas pipe (11) The port (38) also adopts an elongated shape and is arranged obliquely relative to the axis of the turbine, so that one side of the elongated elongated nozzle is far away from the axis, and the elongated elongated nozzle on the other side is close to the axis. The elongated elongated nozzle ( The width of 38) allows the jet port to correspond to multiple outer ring blades (36), and the radial size of the narrow flat part of the jet port (38) is smaller than the length of the outer ring blade (36) in the radial direction, making it easier to rotate. The outer ring blades of the air jet (38) can be continuously blown by the jetted airflow from the blade tip to the blade root.
  6. 喷气分流式转子增压燃气轮机,包括压气机(21)和通过机轴相连接的涡轮(23),在压气机与涡轮之间设有带若干排燃烧室(26)的转子(25),该转子装在转子壳(29)内,在转子壳(29)上划分有均等的若干配气角度区(40),从转子壳(29)上每个配气角度区(40)内的起始位置、到顺转子(25)旋转方向的末端位置处,依次设有处在同一角度内的换气进口(8)与换气出口(7),在换气进口和换气出口之后,依次形成装有火花塞(30)的点火腔(31)、第一出气口(1)、第二出气口(2)、第三出气口(3)、第四出气口(4)及第五出气口(5)……,压气机(21)的出气端经压缩空气输气管(9)与换气进口(8)相连通,换气出口(7)和其后相应的出气口分别经相应的输气管再与涡轮之前的喷口盘(37)上相应的喷气口相连通,其特征在于:在涡轮(23)后侧所设的末级叶片(42)是处在涡轮壳(24)的外侧位置,这些末级叶片(42)的叶顶还与外围的连结转环(39)相连结,并让连结转环处于涡轮壳(24)的后面,连结转环前端面的直径尺寸与涡轮壳(24)后端面的直径尺寸相同,在连结转环(39)上还形成有外围的外环叶片(32),在外环叶片的外围设有把外环叶片罩在其中的扩口涡轮壳(27),扩口涡轮壳经挡板环(28)与涡轮壳(24)的后侧相连,各配气角度区(40)内的第一出气口(1)和中间及最后位置的两个出气口分别经各自的输气管沿涡轮壳(24)外围向后延伸,在各输气管后端形成有喷气口(38),输气管后端的喷气口穿过扩口涡轮壳(27)与涡轮壳(24)之间的挡板环(28)后再对准着后面的外环叶片(32),各输气管后端的喷气口尺寸较宽,使各喷气口(38)能排满扩口涡轮壳(27)与涡轮壳(24)之间的环形喷气口布置空间,除了各配气角度区(40)内的第一出气口(1)和中间及最后位置的两个出气口之外,剩余的各出气口则分别经相应的各自输气管与涡轮(23)之前的喷口盘(37)上各相应的喷气口相连通。 A jet split-flow rotor supercharged gas turbine includes a compressor (21) and a turbine (23) connected through a crankshaft. A rotor (25) with several rows of combustion chambers (26) is provided between the compressor and the turbine. The rotor is installed in the rotor shell (29). The rotor shell (29) is divided into a number of equal gas distribution angle zones (40). From the starting point of each gas distribution angle zone (40) on the rotor shell (29) position, to the end position along the rotation direction of the rotor (25), there are ventilation inlets (8) and ventilation outlets (7) at the same angle. After the ventilation inlet and the ventilation outlet, a ventilation inlet (8) and a ventilation outlet (7) are formed in sequence. The ignition chamber (31) equipped with the spark plug (30), the first air outlet (1), the second air outlet (2), the third air outlet (3), the fourth air outlet (4) and the fifth air outlet ( 5)..., the air outlet of the compressor (21) is connected to the ventilation inlet (8) through the compressed air pipe (9), and the ventilation outlet (7) and the subsequent corresponding air outlet are connected through the corresponding gas pipes. It is then connected to the corresponding jet port on the nozzle plate (37) in front of the turbine, and is characterized in that the final stage blade (42) provided on the rear side of the turbine (23) is located outside the turbine shell (24). The blade tips of these final blades (42) are also connected to the peripheral connecting swivel (39), and the connecting swivel is located behind the turbine shell (24). The diameter of the front end face of the connecting swivel is in line with the turbine shell (24). ) have the same diameter size on the rear end face, and peripheral outer ring blades (32) are also formed on the connecting swivel (39). A flared turbine shell (27) is provided on the periphery of the outer ring blades to cover the outer ring blades. ), the flared turbine shell is connected to the rear side of the turbine shell (24) through the baffle ring (28), the first air outlet (1) in each valve angle area (40) and the two outlets at the middle and last positions The gas ports respectively extend backward along the periphery of the turbine shell (24) through respective gas delivery pipes, and a jet port (38) is formed at the rear end of each gas delivery pipe. The jet port at the rear end of the gas delivery pipe passes through the flared turbine shell (27) and the turbine shell. The baffle ring (28) between (24) is then aligned with the rear outer ring blade (32). The size of the jet opening at the rear end of each air pipe is wider, so that each jet opening (38) can be filled with the expanded turbine. The annular air jet arrangement space between the shell (27) and the turbine shell (24), in addition to the first air outlet (1) in each valve angle area (40) and the two air outlets in the middle and last position, The remaining air outlets are respectively connected to the corresponding jet ports on the nozzle plate (37) in front of the turbine (23) through the corresponding air pipes.
  7. 根据权利要求6所述的喷气分流式转子增压燃气轮机,其特征在于:从压气机(21)之后的各压缩空气输气管(9)上还分别引出设有中间冷却器(49)的冷气输气管(48),并让冷气输气管数量与转子壳上配气角度区(40)的数量相同,这些冷气输气管后端也形成有冷气喷气口(50),在让冷气输气管(48)均布排列在其它的输气管之间并穿过连结着扩口涡轮壳(27)与涡轮壳(24)的挡板环(28)后,再让冷气输气管后端的冷气喷气口(50)对准着后面的外环叶片(32)。The jet split-flow rotor supercharged gas turbine according to claim 6, characterized in that: cold air transmission pipes (9) equipped with intercoolers (49) are respectively led out from each compressed air transmission pipe (9) after the compressor (21). The air pipe (48), and the number of the cold air air pipes is the same as the number of the air distribution angle areas (40) on the rotor shell. Cold air jets (50) are also formed at the rear ends of these cold air air pipes, and the cold air air pipes (48) are Evenly distributed between the other gas delivery pipes and passing through the baffle ring (28) connecting the expanded turbine shell (27) and the turbine shell (24), then let the cold air jet port (50) at the rear end of the cold air delivery pipe Aim at the rear outer ring blade (32).
  8. 根据权利要求6或7所述的喷气分流式转子增压燃气轮机,其特征在于:涡轮(23)后侧的末级叶片(42)和连成一体的外环叶片(32)即可装在涡轮(23)的转子体(33)上,又可装在动力输出轴(35)上的单独转子盘(34)上。The jet split rotor supercharged gas turbine according to claim 6 or 7, characterized in that: the final stage blade (42) on the rear side of the turbine (23) and the integrated outer ring blade (32) can be installed on the turbine The rotor body (33) of (23) can be mounted on the independent rotor disk (34) on the power output shaft (35).
  9. 喷气分流式转子增压燃气轮机,包括压气机(21)和通过机轴相连接的涡轮(23),在压气机与涡轮之间设有带若干排燃烧室(26)的转子(25),该转子装在转子壳(29)内,在转子壳(29)上划分有均等的若干配气角度区(40),从转子壳(29)上每个配气角度区(40)内的起始位置、到顺转子(25)旋转方向的末端位置处,依次设有处在同一角度内的换气进口(8)与换气出口(7),在换气进口和换气出口之后,依次形成装有火花塞(30)的点火腔(31)、第一出气口(1)、第二出气口(2)、第三出气口(3)、第四出气口(4)及第五出气口(5)……,压气机(21)的出气端经压缩空气输气管(9)与换气进口(8)相连通,换气出口(7)和其后相应的出气口分别经相应的输气管再与涡轮之前的喷口盘(37)上相应的喷气口相连通,其特征在于:在涡轮(23)后侧所设的末级叶片(42)处在涡轮壳(24)的外侧位置,这些末级叶片(42)的叶顶与连结转环(39)相连结,连结转环处于涡轮壳(24)的后面,并且连结转环前端面的直径尺寸与涡轮壳(24)后端面的直径尺寸相同,在连结转环(39)上形成有外围的外环叶片(32),在外环叶片(32)的叶顶也形成有外围的连结外环(41),在连结外环上还形成有风扇叶片(44),在涡轮壳(24)的后侧外围设有喷口壳(46),涡轮壳(24)的后侧经挡板环(28)与外围所设的喷口壳(46)后侧相连,喷口壳(46)后端面的直径尺寸与后面的设有叶片的连结外环(41)前端面的直径尺寸相同,在风扇叶片(44)的外围还设有把风扇叶片罩在其中的风扇函道(43),风扇函道通过导向柱片(45)与涡轮壳(24)外围的喷口壳(46)相连,各配气角度区(40)内的第一出气口(1)和中间及最后位置的两个出气口分别经各自的输气管沿涡轮壳(24)外围向后延伸,并让各输气管后端所形成的喷气口(38)穿过喷口壳(46)与涡轮壳(24)之间的挡板环(28),再对准着后面的外环叶片(32),各输气管后端的喷气口尺寸较宽,使各喷气口(38)能排满喷口壳(46)与涡轮壳(24)之间的环形喷气口布置空间,除了各配气角度区(40)内的第一出气口(1)和中间及最后位置的两个出气口之 外,剩余的各出气口则分别经相应的各自输气管与涡轮(23)之前的喷口盘(37)上各相应的喷气口相连通,涡轮(23)后面的由末级叶片(42)、外环叶片(32)和风扇叶片(44)构成的结构体通过轴承装在涡轮的转子体(33)与后侧的尾锥(47)之间。A jet split-flow rotor supercharged gas turbine includes a compressor (21) and a turbine (23) connected through a crankshaft. A rotor (25) with several rows of combustion chambers (26) is provided between the compressor and the turbine. The rotor is installed in the rotor shell (29). The rotor shell (29) is divided into a number of equal gas distribution angle zones (40). From the starting point of each gas distribution angle zone (40) on the rotor shell (29) position, to the end position along the rotation direction of the rotor (25), there are ventilation inlets (8) and ventilation outlets (7) at the same angle. After the ventilation inlet and the ventilation outlet, a ventilation inlet (8) and a ventilation outlet (7) are formed in sequence. The ignition chamber (31) equipped with the spark plug (30), the first air outlet (1), the second air outlet (2), the third air outlet (3), the fourth air outlet (4) and the fifth air outlet ( 5)..., the air outlet of the compressor (21) is connected to the ventilation inlet (8) through the compressed air pipe (9), and the ventilation outlet (7) and the subsequent corresponding air outlet are connected through the corresponding gas pipes. Then it is connected with the corresponding jet port on the nozzle plate (37) before the turbine, which is characterized in that the final stage blade (42) provided on the rear side of the turbine (23) is located outside the turbine shell (24). The tip of the final blade (42) is connected to the connecting swivel (39). The connecting swivel is located behind the turbine shell (24), and the diameter of the front end face of the connecting swivel is equal to the diameter of the rear end face of the turbine shell (24). The dimensions are the same, a peripheral outer ring blade (32) is formed on the connecting swivel (39), a peripheral connecting outer ring (41) is also formed on the blade tip of the outer ring blade (32), and a peripheral connecting outer ring (41) is also formed on the connecting outer ring. A fan blade (44) is formed, and a nozzle housing (46) is provided on the rear periphery of the turbine housing (24). The rear side of the turbine housing (24) is connected to the nozzle housing (46) provided on the periphery through a baffle ring (28). ) are connected to the rear side. The diameter of the rear end surface of the nozzle shell (46) is the same as the diameter of the front end surface of the connecting outer ring (41) with blades at the back. There is also a fan blade cover on the periphery of the fan blade (44). There is a fan duct (43) in it. The fan duct is connected to the nozzle shell (46) on the periphery of the turbine shell (24) through the guide column piece (45). 1) and the two air outlets at the middle and last positions respectively extend backward along the periphery of the turbine shell (24) through their respective air pipes, and let the jets (38) formed at the rear ends of each air pipes pass through the nozzle housing (46 ) and the turbine shell (24), and then align it with the outer ring blades (32) at the back. The size of the jet openings at the rear end of each air pipe is wider, so that each jet opening (38) can discharge air. The annular jet arrangement space between the full jet housing (46) and the turbine housing (24), except for the first air outlet (1) in each valve angle area (40) and one of the two air outlets in the middle and last position In addition, the remaining air outlets are connected to the corresponding jet ports on the nozzle plate (37) in front of the turbine (23) through the corresponding air pipes. The ones behind the turbine (23) are connected by the final blade (42), The structure composed of outer ring blades (32) and fan blades (44) is installed between the turbine rotor body (33) and the rear tail cone (47) through bearings.
  10. 根据权利要求9所述的喷气分流式转子增压燃气轮机,其特征在于:从压气机(21)之后的各压缩空气输气管(9)上还分别引出设有中间冷却器(49)的冷气输气管(48),并让冷气输气管数量与转子壳上配气角度区(40)的数量相同,这些冷气输气管后端也形成有冷气喷气口(50),在让冷气输气管(48)均布排列在其它的输气管之间并穿过连结着喷口壳(46)与涡轮壳(24)的挡板环(28)后,再让冷气输气管后端的冷气喷气口(50)对准着后面的外环叶片(32)。 The jet-splitting rotor supercharged gas turbine according to claim 9, characterized in that: cold air transmission pipes equipped with intercoolers (49) are respectively led from each compressed air gas transmission pipe (9) after the compressor (21). The air pipe (48), and the number of the cold air air pipes is the same as the number of the air distribution angle areas (40) on the rotor shell. Cold air jets (50) are also formed at the rear ends of these cold air air pipes, and the cold air air pipes (48) are After evenly distributing between the other air pipes and passing through the baffle ring (28) connecting the nozzle shell (46) and the turbine shell (24), align the cold air jets (50) at the rear end of the cold air pipes. At the back of the outer ring blade (32).
PCT/CN2023/000072 2022-06-14 2023-06-12 Gas jet stream splitting-type rotor supercharged gas turbine WO2023241021A1 (en)

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CN207647615U (en) * 2017-11-23 2018-07-24 新奥能源动力科技(上海)有限公司 Gas turbine
CN109538376A (en) * 2018-11-07 2019-03-29 中国航发湖南动力机械研究所 Aircraft and its engine
CN111963313A (en) * 2020-08-21 2020-11-20 韩培洲 Rotor supercharging gas turbine

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US20090178386A1 (en) * 2008-01-12 2009-07-16 Sachs Humberto W Aircraft Propulsion System
CN103726952A (en) * 2012-10-11 2014-04-16 高荣江 Divided-flow type gas turbine engine
CN207647615U (en) * 2017-11-23 2018-07-24 新奥能源动力科技(上海)有限公司 Gas turbine
CN108301940A (en) * 2018-04-23 2018-07-20 孟金来 Three rows mouthful turbojet
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