CN116291766A - Axial-flow turbine variable-frequency power generation device for compressed air energy storage - Google Patents
Axial-flow turbine variable-frequency power generation device for compressed air energy storage Download PDFInfo
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- CN116291766A CN116291766A CN202310119277.5A CN202310119277A CN116291766A CN 116291766 A CN116291766 A CN 116291766A CN 202310119277 A CN202310119277 A CN 202310119277A CN 116291766 A CN116291766 A CN 116291766A
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- 238000010248 power generation Methods 0.000 title claims abstract description 39
- 238000004146 energy storage Methods 0.000 title claims abstract description 27
- 238000001816 cooling Methods 0.000 claims description 37
- 239000002826 coolant Substances 0.000 claims description 6
- 230000005674 electromagnetic induction Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 4
- UJCHIZDEQZMODR-BYPYZUCNSA-N (2r)-2-acetamido-3-sulfanylpropanamide Chemical class CC(=O)N[C@@H](CS)C(N)=O UJCHIZDEQZMODR-BYPYZUCNSA-N 0.000 claims description 3
- 230000004308 accommodation Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- 238000007789 sealing Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/141—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path
- F01D17/145—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path by means of valves, e.g. for steam turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/12—Cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention relates to the technical field of power generation devices, in particular to an axial flow turbine variable frequency power generation device for compressed air energy storage, which comprises: an impeller generator comprising: the motor comprises a rotor wheel disc, motor stators arranged at two sides of the rotor wheel disc and motor rotors arranged on the rotor wheel disc and opposite to the motor stators; the rotor blades are arranged on the rotor wheel disc, and the rotor blades, the rotor wheel disc and the motor rotor are integrally arranged together to form an integrated structure; the frequency converter is connected with the impeller generator and used for converting electric energy generated by the impeller generator into power frequency electric energy; and, the rotational speed of the rotor blade may be adjusted as desired. The structure solves the problem of high energy loss caused by combining the turbine and the generator in the prior art.
Description
Technical Field
The invention relates to the technical field of power generation devices, in particular to an axial flow turbine variable frequency power generation device for compressed air energy storage.
Background
The compressed air energy storage technology is an energy storage mode with great potential, and as the turbine is a core energy release power generation device of the compressed air energy storage system, the working efficiency of the turbine plays a vital role in the efficient operation of the whole system.
In the prior art, when generating electricity, the axial flow turbine generating device needs a transmission shaft and a coupling to be connected with a generator, and the existence of the transmission shaft and the coupling can complicate a shaft system, increase mechanical loss, cause airflow to turn over and be unevenly distributed, and form larger flow loss. Therefore, a new axial-flow turbine variable-frequency power generation device is needed by those skilled in the art to solve the problem of high energy loss caused by the combination of the existing turbine and the generator.
Disclosure of Invention
Therefore, the invention aims to solve the technical problem of high energy loss caused by combining the turbine and the generator in the prior art. To this end, the invention provides an axial flow turbine variable frequency power generation device for compressed air energy storage, comprising:
an impeller generator comprising: the motor comprises a rotor wheel disc, motor stators arranged at two sides of the rotor wheel disc and motor rotors arranged on the rotor wheel disc and opposite to the motor stators;
the rotor blades are arranged on the rotor wheel disc, and the rotor blades, the rotor wheel disc and the motor rotor are integrally arranged together to form an integrated structure;
the frequency converter is connected with the impeller generator and used for converting electric energy generated by the impeller generator into power frequency electric energy; and, the rotational speed of the rotor blade may be adjusted as desired.
Optionally, the axial flow turbine variable frequency power generation device for storing energy of compressed air further comprises:
the turbine guide vane is arranged in the air inlet direction of the rotor blade and is used for accelerating the airflow entering the turbine so as to drive the rotor disk to rotate through the rotor blade to apply work through the accelerated airflow.
Optionally, the axial flow turbine variable frequency power generation device for storing energy of compressed air further comprises:
a baffle, comprising: a front guide support plate arranged in the air inlet direction of the turbine guide vane and a rear guide support plate arranged in the air outlet direction of the rotor blade;
the front diversion support plate is connected with the air inlet diversion cover so as to support the air inlet diversion cover; the rear guide support plate is connected with the exhaust guide cover so as to support the exhaust guide cover.
Optionally, accommodating channels for cooling pipes and/or wires to pass through are arranged in the front flow guide support plate and the rear flow guide support plate;
one end of the cooling pipe is connected with the impeller generator, and the other end of the cooling pipe is connected with the cooling mechanism so as to remove heat generated by the impeller generator from the impeller generator through the cooling pipe;
one end of the electric wire is connected with the impeller generator, and the other end of the electric wire is connected with the frequency converter.
Optionally, the number of the accommodating channels in the front guide support plate and the rear guide support plate is two;
the front diversion support plate and the rear diversion support plate are respectively provided with a containing channel for the cooling pipe and the electric wire to independently pass through.
Optionally, a control valve for adjusting the inflow amount of the cooling medium is further arranged on the cooling pipe.
Optionally, the axial flow turbine variable frequency power generation device for storing energy of compressed air further comprises: and the impeller generator is connected with the power grid through the frequency converter so as to receive electromagnetic induction electric energy generated by the impeller generator.
Optionally, the section profile of the rotor blade on the rotor disk is of the NACA series or Clark series.
Optionally, the frequency converter is in a four-quadrant form;
when the axial flow turbine normally operates, the frequency converter is used for converting the electric energy generated by the impeller generator into power frequency electric energy so as to meet the power grid requirement;
when the axial flow turbine is started, the power grid drives the rotor disk to reach the design rotation speed through the frequency converter;
when the load shedding fault of the axial flow turbine occurs, the frequency converter drives the rotor disk to brake so as to prevent turbine runaway.
Optionally, the axial flow turbine variable frequency power generation device for storing energy of compressed air further comprises:
the motor stator is rotatably arranged on the generator rotating shaft through a generator bearing.
The technical scheme of the invention has the following advantages:
1. the invention provides an axial flow turbine variable frequency power generation device for compressed air energy storage, which comprises:
an impeller generator comprising: the motor comprises a rotor wheel disc, motor stators arranged at two sides of the rotor wheel disc and motor rotors arranged on the rotor wheel disc and opposite to the motor stators;
the rotor blades are arranged on the rotor wheel disc, and the rotor blades, the rotor wheel disc and the motor rotor are integrally arranged together to form an integrated structure;
the frequency converter is connected with the impeller generator and used for converting electric energy generated by the impeller generator into power frequency electric energy; and, the rotational speed of the rotor blade may be adjusted as desired.
In the invention, the problem of high energy loss caused by combining a turbine and a generator in the prior art is solved. The rotor blade, the rotor wheel disc and the motor rotor are integrally arranged together to form an integral structure. And then the rotor blades are pushed to rotate by compressed air medium or other mediums, so that the power generation of the axial-flow turbine variable-frequency power generation device is realized. The structure does not need complex shafting and couplings, reduces manufacturing cost, and further reduces mechanical loss. In addition, the turbine is axially air-in and axially air-out, and the air flow at the inlet and the outlet of the turbine does not generate flow direction turning, so that the flow loss is avoided, and the energy loss is further reduced. And the motor is arranged on the rotor disk, the shape of the blade top of the rotor blade is not limited, and the efficiency is improved according to the design of the high-efficiency through-flow structure. The structure solves the problem of high energy loss caused by combination of the turbine and the generator in the prior art. In addition, the turbine structure integrates the rotor blade, the rotor wheel disc and the motor rotor together, and adopts an integrated design, so that a shaft end sealing device is not needed, the manufacturing cost is reduced, and shaft end leakage is avoided.
In addition, the power generation device is also an axial flow turbine variable frequency power generation device, the rotating speed of the rotor blades can be adjusted according to the needs through the frequency converter, so that the variable frequency work of the axial flow turbine can be realized, and the turbine can be ensured to be in the optimal operation efficiency.
2. The invention provides an axial flow turbine variable frequency power generation device for compressed air energy storage, which further comprises: the turbine guide vane is arranged in the air inlet direction of the rotor blade and is used for accelerating the airflow entering the turbine so as to drive the rotor disk to rotate through the rotor blade to apply work through the accelerated airflow.
In the invention, the air flow entering the turbine can be effectively accelerated through the turbine guide vane, and the turbine guide vane can convert the internal energy of the air flow into kinetic energy so as to accelerate the air flow.
3. The invention provides an axial flow turbine variable frequency power generation device for compressed air energy storage, which further comprises: a baffle, comprising: a front guide support plate arranged in the air inlet direction of the turbine guide vane and a rear guide support plate arranged in the air outlet direction of the rotor blade; the front diversion support plate is connected with the air inlet diversion cover so as to support the air inlet diversion cover; the rear guide support plate is connected with the exhaust guide cover so as to support the exhaust guide cover.
According to the invention, the front guide support plate and the rear guide support plate can effectively support the air inlet guide cover and the air outlet guide cover respectively, so that the air inlet guide cover guides air flow to push turbine guide vanes, and the power generation efficiency is improved.
4. The axial flow turbine variable frequency power generation device for compressed air energy storage, provided by the invention, is characterized in that the front diversion support plate and the rear diversion support plate are internally provided with accommodating channels for cooling pipes and/or wires to pass through;
one end of the cooling pipe is connected with the impeller generator, and the other end of the cooling pipe is connected with the cooling mechanism so as to remove heat generated by the impeller generator from the impeller generator through the cooling pipe; one end of the electric wire is connected with the impeller generator, and the other end of the electric wire is connected with the frequency converter.
In the invention, the space layout of the axial flow turbine variable frequency power generation device can be effectively optimized by arranging the cooling pipes and the electric wires in the guide support plate. And the heat generated by the impeller generator can be taken away through the cooling pipe, so that the motor can work stably and reliably, and the heat energy can be recycled.
5. The axial flow turbine variable frequency power generation device for compressed air energy storage is characterized in that a control valve for adjusting the inflow amount of cooling medium is further arranged on the cooling pipe. According to the invention, the quantity of the cooling medium introduced into the impeller generator can be adjusted in real time through the control valve, so that the stable and reliable operation of the impeller generator is ensured.
6. The axial flow turbine variable frequency power generation device for compressed air energy storage provided by the invention is characterized in that the impeller generator is connected with the power grid through the frequency converter so as to receive electromagnetic induction electric energy generated by the impeller generator.
The frequency converter is in a four-quadrant form; when the axial flow turbine normally operates, the frequency converter is used for converting the electric energy generated by the impeller generator into power frequency electric energy so as to meet the power grid requirement; when the axial flow turbine is started, the power grid drives the rotor disk to reach the design rotation speed through the frequency converter; when the load shedding fault of the axial flow turbine occurs, the frequency converter drives the rotor disk to brake so as to prevent turbine runaway.
According to the invention, the compressed air energy storage turbine can realize variable-working-condition operation through the frequency converter, and has the advantages of sensitive response and high working efficiency. Moreover, the rotor disk brake can be realized when the load shedding fault of the axial flow turbine occurs, and the maneuverability and safety of the variable-working-condition operation of the compressed air energy storage turbine are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an axial flow turbine variable frequency power generation device for compressed air energy storage.
Reference numerals illustrate:
1-an impeller generator; 2-a rotor disk; 3-a motor stator; 4-a motor rotor; 5-rotor blades; 6-frequency converter; 7-turbine vanes; 8-front diversion support plates; 9-a rear guide support plate; 10-cooling pipes; 11-wires; 12-an electric grid; 13-controlling a valve; 14-a generator shaft; 15-generator bearings; 16-an air inlet guide sleeve; 17-exhaust pod.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example 1
In this embodiment, an axial-flow turbine variable-frequency power generation device for storing energy of compressed air is provided, as shown in fig. 1, which includes:
an impeller generator 1, comprising: the motor comprises a rotor wheel disc 2, motor stators 3 arranged at two sides of the rotor wheel disc 2, and a motor rotor 4 arranged on the rotor wheel disc 2 and opposite to the motor stators 3; the section profile of the rotor blade 5 on the rotor disk 2 is NACA series;
a generator rotating shaft 14, the rotor wheel disc 2 is fixedly arranged on the generator rotating shaft 14, and the motor stator 3 is rotatably arranged on the generator rotating shaft 14 through a generator bearing 15;
the turbine guide vanes 7 are arranged in the air inlet direction of the rotor blades 5, and the turbine guide vanes 7 are used for accelerating the airflow entering the turbine so as to push the rotor disk 2 to rotate through the accelerated airflow through the rotor blades 5 to apply work;
a baffle, comprising: a front guide support plate 8 arranged in the air inlet direction of the turbine guide vane 7, and a rear guide support plate 9 arranged in the air outlet direction of the rotor blade 5; the front diversion support plate 8 is connected with the air inlet diversion cover 16 to support the air inlet diversion cover 16; the rear guide support plate 9 is connected with the exhaust guide cover 17 to support the exhaust guide cover 17; in this embodiment, the front deflector support plate 8 and the rear deflector support plate 9 are respectively provided with a receiving channel for passing a cooling tube 10 and an electric wire 11; the front guide support plate 8 and the rear guide support plate 9 are internally provided with accommodating channels for the cooling pipes 10 and the wires 11 to pass through; one end of the cooling pipe 10 is connected with the impeller generator 1, and the other end of the cooling pipe is connected with the cooling mechanism so as to remove heat generated by the impeller generator 1 from the impeller generator 1 through the cooling pipe 10; one end of the electric wire 11 is connected with the impeller generator 1, and the other end of the electric wire is connected with the frequency converter 6; in addition, the number of the accommodating channels in the front diversion support plate 8 and the rear diversion support plate 9 is two; the front diversion support plate 8 and the rear diversion support plate 9 are respectively provided with a containing channel for the cooling pipe 10 and the electric wire 11 to independently pass through;
the frequency converter 6 is connected with the impeller generator 1 and is used for converting electric energy generated by the impeller generator 1 into power frequency electric energy; the rotating speed of the rotor blade 5 can be adjusted according to the requirement; the frequency converter 6 is in a four-quadrant form; when the axial flow turbine normally operates, the frequency converter 6 is used for converting the electric energy generated by the impeller generator 1 into power frequency electric energy so as to meet the requirements of the power grid 12; when the axial flow turbine is started, the power grid 12 drives the rotor disk 2 to reach the designed rotating speed through the frequency converter 6; when the load shedding fault of the axial flow turbine occurs, the frequency converter 6 drives the rotor disk 2 to brake so as to prevent turbine runaway;
the power grid 12, the impeller generator 1 is connected with the power grid 12 through the frequency converter 6, so as to receive electromagnetic induction electric energy generated by the impeller generator 1.
In the present embodiment, in order to adjust the amount of the cooling medium introduced into the impeller generator 1 in real time, the impeller generator 1 is ensured to operate stably and reliably. The cooling pipe 10 is further provided with a control valve 13 for adjusting the amount of the cooling medium.
The working principle of the axial flow turbine variable frequency power generation device disclosed by the embodiment is as follows:
after the air flow enters the turbine, under the guidance of the air inlet guide cover 16,
the air flow entering the turbine is accelerated by passing through the front flow guide support plate 8 and then the turbine guide vane 7. The accelerated airflow rotor blade 5 then rotates to apply work. In the above process, the rotor blade 5 drives the rotor disk 2 to rotate and drives the motor rotor 4 to rotate; the motor rotor 4 and the motor stator 3 form relative motion, electromagnetic induction electric energy is generated, and the electromagnetic induction electric energy is converted into power frequency current through the frequency converter 6 and then transmitted to the power grid 12. After passing through the rotor blades 5, the main flow flows through the rear guide support plate 9 and the exhaust guide cover 17 and then flows out of the turbine.
Heat generated by the impeller generator 1 during operation can be taken away through cooling pipes 10 buried in the front deflector support plate 8 and the rear deflector support plate 9. And the amount of cooling air can be regulated by controlling the valve 13.
Of course, whether the axial turbine variable frequency power generation device includes the turbine guide vanes 7 in this embodiment is not particularly limited, and in other embodiments, the axial turbine variable frequency power generation device of the present invention does not include the turbine guide vanes 7.
Of course, in this embodiment, there is no specific limitation on whether or not the accommodating channels through which the cooling tubes 10 and the wires 11 pass are provided in the guide support plates, and in other embodiments, only the cooling tubes 10 are provided in the front guide support plate 8 and the rear guide support plate 9. Alternatively, only the electric wires 11 are provided in the front deflector support plate 8 and the rear deflector support plate 9.
Of course, in this embodiment, there is no specific limitation on whether or not the accommodating channels through which the cooling tube 10 and the electric wire 11 pass are provided in the guide support plate, and in other embodiments, the number of the accommodating channels in the front guide support plate 8 and the rear guide support plate 9 is 1; the cooling tube 10 and the electric wire 11 are disposed in the above-mentioned accommodation passage.
Of course, the sectional profile of the rotor blade 5 on the rotor disk 2 is not particularly limited in this embodiment, and in other embodiments, the sectional profile of the rotor blade 5 on the rotor disk 2 is Clark series.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (10)
1. An axial flow turbine variable frequency power generation device for compressed air energy storage, which is characterized by comprising:
impeller generator (1), comprising: the motor comprises a rotor wheel disc (2), motor stators (3) arranged at two sides of the rotor wheel disc (2), and a motor rotor (4) arranged on the rotor wheel disc (2) and opposite to the motor stators (3);
the rotor blade (5), the rotor blade (5) is arranged on the rotor wheel disc (2), and the rotor blade (5), the rotor wheel disc (2) and the motor rotor (4) are integrally arranged together to form an integrated structure;
the frequency converter (6) is connected with the impeller generator (1) and is used for converting electric energy generated by the impeller generator (1) into power frequency electric energy; the rotational speed of the rotor blade (5) can be adjusted as required.
2. The axial flow turbine variable frequency power generation device for compressed air energy storage of claim 1, further comprising:
the turbine guide vanes (7) are arranged in the air inlet direction of the rotor blades (5), and the turbine guide vanes (7) are used for accelerating air flow entering the turbine so as to push the rotor wheel disc (2) to rotate to apply work through the accelerated air flow through the rotor blades (5).
3. The axial flow turbine variable frequency power generation device for compressed air energy storage of claim 2, further comprising:
a baffle, comprising: a front guide support plate (8) arranged in the air inlet direction of the turbine guide vane (7), and a rear guide support plate (9) arranged in the air outlet direction of the rotor blade (5);
the front diversion support plate (8) is connected with the air inlet diversion cover (16) so as to support the air inlet diversion cover (16); the rear guide support plate (9) is connected with the exhaust guide cover (17) so as to support the exhaust guide cover (17).
4. An axial flow turbine variable frequency power generation device for compressed air energy storage according to claim 3, wherein the front diversion support plate (8) and the rear diversion support plate (9) are internally provided with accommodating channels for the cooling pipes (10) and/or wires (11) to pass through;
one end of the cooling pipe (10) is connected with the impeller generator (1) and the other end of the cooling pipe is connected with the cooling mechanism so as to remove heat generated by the impeller generator (1) from the impeller generator (1) through the cooling pipe (10);
one end of the electric wire (11) is connected with the impeller generator (1) and the other end is connected with the frequency converter (6).
5. The axial flow turbine variable frequency power generation device for compressed air energy storage according to claim 4, wherein the number of the accommodation channels in the front diversion support plate (8) and the rear diversion support plate (9) is two;
the front flow guide support plate (8) and the rear flow guide support plate (9) are respectively provided with a containing channel for the cooling pipe (10) and the electric wire (11) to independently pass through.
6. The axial-flow turbine variable-frequency power generation device for compressed air energy storage according to claim 4, wherein a control valve (13) for adjusting the inflow of the cooling medium is further arranged on the cooling pipe (10).
7. The axial flow turbine variable frequency power generation device for compressed air energy storage of claim 1, further comprising: and the impeller generator (1) is connected with the power grid (12) through the frequency converter (6) so as to receive electromagnetic induction electric energy generated by the impeller generator (1).
8. An axial flow turbine variable frequency power plant for compressed air energy storage according to claim 1, characterized in that the section profile of the rotor blades (5) on the rotor disk (2) is of the NACA series or Clark series.
9. The axial flow turbine variable frequency power generation device for compressed air energy storage according to claim 1, characterized in that the frequency converter (6) is in the form of four quadrants;
when the axial flow turbine normally operates, the frequency converter (6) is used for converting electric energy generated by the impeller generator (1) into power frequency electric energy so as to meet the requirements of the power grid (12);
when the axial flow turbine is started, the power grid (12) drives the rotor wheel disc (2) to reach the design rotating speed through the frequency converter (6);
when the load shedding fault of the axial flow turbine occurs, the frequency converter (6) drives the rotor disk (2) to brake so as to prevent the turbine from flying.
10. The axial flow turbine variable frequency power generation device for compressed air energy storage of claim 1, further comprising:
the motor stator (3) is rotatably arranged on the generator rotating shaft (14) through a generator bearing (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310119277.5A CN116291766A (en) | 2023-02-07 | 2023-02-07 | Axial-flow turbine variable-frequency power generation device for compressed air energy storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310119277.5A CN116291766A (en) | 2023-02-07 | 2023-02-07 | Axial-flow turbine variable-frequency power generation device for compressed air energy storage |
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| Publication Number | Publication Date |
|---|---|
| CN116291766A true CN116291766A (en) | 2023-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310119277.5A Pending CN116291766A (en) | 2023-02-07 | 2023-02-07 | Axial-flow turbine variable-frequency power generation device for compressed air energy storage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116291766A (en) |
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2023
- 2023-02-07 CN CN202310119277.5A patent/CN116291766A/en active Pending
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