CN210530930U - Integrated vertical asynchronous generator set - Google Patents
Integrated vertical asynchronous generator set Download PDFInfo
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- CN210530930U CN210530930U CN201921171930.8U CN201921171930U CN210530930U CN 210530930 U CN210530930 U CN 210530930U CN 201921171930 U CN201921171930 U CN 201921171930U CN 210530930 U CN210530930 U CN 210530930U
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a vertical asynchronous generator set of integration, current ORC generating set exist power little, unit investment cost is high, equipment need special dynamic seal, the big scheduling problem of generator self loss. In order to solve the above problem, the technical scheme of the utility model is that: the utility model provides a vertical asynchronous generator set of integration, includes expander and the generator that sets gradually on same vertical rotating shaft, and the pivot both ends are provided with magnetic suspension initiative control bearing, and the magnetic suspension initiative control bearing outside of pivot upper end sets up magnetic suspension footstep bearing. The utility model discloses a vertical overall arrangement utilizes turbine axial thrust to offset rotor gravity effectively, thereby reaches the power consumption effect that reduces magnetic bearing axial thrust and reduce thrust bearing.
Description
Technical Field
The invention relates to an asynchronous generator set, in particular to an integrated vertical asynchronous generator set.
Background
In the field of low-temperature waste heat power generation based on an ORC technology, a screw expander and a small turbine expander are mainly used as mainstream technologies, and the problems of low power, high unit investment cost, special dynamic sealing of equipment, high loss of a generator and the like exist; meanwhile, for a high-power ORC generator set, the axial unbalance force ratio is larger, and the horizontal generator set is difficult to overcome.
Disclosure of Invention
The invention aims to provide an integrated vertical asynchronous generator set, which adopts a high-power magnetic suspension bearing, effectively utilizes axial thrust of a turbine to counteract gravity of a rotor, and achieves the effect of reducing the axial thrust of a magnetic bearing so as to reduce the power consumption of the thrust bearing.
The technical scheme adopted by the invention is as follows:
vertical asynchronous generator set of integration, its characterized in that:
the magnetic suspension type expansion machine comprises an expansion machine and a generator which are sequentially arranged on the same vertical rotating shaft, magnetic suspension active control bearings are arranged at two ends of the rotating shaft, and a magnetic suspension thrust bearing is arranged outside the magnetic suspension active control bearings at the upper end of the rotating shaft.
The upper end of the rotating shaft is arranged in the generator, a generator rotor is arranged, and a generator stator core and a winding are arranged outside the generator rotor; all the components of the generator are placed in the generator housing.
The magnetic suspension active control bearing comprises a thrust bearing, a radial support bearing and a digital controller.
The expander is a turbine, movable blades and fixed blades are arranged outside the shaft, turbine volutes are arranged outside the movable blades and the fixed blades, and an organic working medium steam inlet is arranged at the front end of each turbine volute and used for receiving organic working medium steam.
The invention has the following advantages:
the invention designs the turbine and the motor (engine) on one shaft with the same rotating speed, adopts vertical layout, effectively utilizes the axial thrust of the turbine to counteract the gravity of the rotor, and achieves the effect of reducing the axial thrust of the magnetic bearing so as to reduce the power consumption of the thrust bearing.
Drawings
Fig. 1 is a schematic view of the structure of an axial turbo expander.
Fig. 2 is a schematic view of a radial turboexpander.
Fig. 3 is a schematic diagram of a single turbine single cycle ORC system using the present invention.
In the figure, 1-magnetic suspension active control bearing, 2-magnetic suspension support bearing, 3-expander, 4-steam inlet, 5-steam outlet, 6-annular atomizing nozzle, 7-generator and 8-base.
Detailed Description
The present invention will be described in detail with reference to specific embodiments.
The invention relates to an integrated turbine set based on permanent magnet and magnetic levitation technologies, wherein a turbine and a generator (or a motor) are designed on a rotating shaft with the same rotating speed.
Referring to fig. 1 and 2, the integrated vertical asynchronous generator set comprises an expander 3 and a generator 7 which are sequentially arranged on the same vertical rotating shaft, magnetic suspension active control bearings 1 are arranged at two ends of the rotating shaft, and magnetic suspension thrust bearings are arranged outside the magnetic suspension active control bearings 1 at the upper end of the rotating shaft.
The magnetic suspension active control bearing 1 comprises a thrust bearing, a radial support bearing and a digital controller, can control the high-speed operation of a rotor, and mainly bears the balance and support guarantee of the motion of the rotor.
The upper end of the rotating shaft is arranged in the generator 7, a generator rotor is arranged, and a generator stator core and a winding are arranged outside the generator rotor; all the components of the generator are placed in the generator housing.
The expander 3 is a turbine, movable blades and static blades are arranged outside the shaft, turbine volutes are arranged outside the movable blades and the static blades, and an inlet for receiving organic working medium steam is arranged at the front end of each turbine volute.
And an annular atomizing nozzle 6 is arranged at the space position between the generator stator and the turbine final stage outlet of the turbine and the space position between the generator stator and the magnetic suspension support bearing positioning plate, the annular atomizing nozzle is connected with a through hole of the unit shell through a cooling liquid pipeline, and an external liquid cooling working medium is in threaded connection with the through hole of the unit shell through a pipeline.
Before the unit works, the magnetic suspension control system provides electric power for the magnetic suspension active control bearing 1, the magnetic suspension supporting bearing 2 and the magnetic suspension thrust bearing suspend the generator rotor according to the dynamic torque of the generator rotor, and the position of the rotor can be continuously adjusted and changed according to the torque of the generator rotor in the working process, so that the generator rotor is always positioned in the center of the bearing. After the magnetic suspension active control bearing 1 is prepared, ORC organic working medium is sent into an air inlet chamber of a turbine, namely an expansion machine, through a pipeline, works through a static blade and a movable blade, is discharged from a turbine volute, and transmits torque to a generator rotor through a rotating shaft to generate electric power.
Referring to fig. 3, the invention can be applied to a single-turbine single-cycle ORC system, the heat source generally requires a small temperature difference between an inlet and an outlet, the high-temperature heat source enters from an evaporator and a preheater, the high-pressure liquid organic working medium is heated and evaporated into high-pressure high-temperature gas, the high-temperature gaseous working medium enters a turbine expander through a steam pocket to do work, then enters an exhaust port through a generator cooling channel, enters a condenser through the exhaust port to be condensed into liquid, and then enters the preheater and the evaporator through a working medium circulating pump to complete an organic rankine cycle.
Therefore, the integral efficiency of the ORC is improved, and the enthalpy value of the heat source is fully utilized. The method can be widely applied to high-temperature geothermal power generation and power generation of industrial high-temperature waste heat sources.
The invention has the following technical points:
the invention uses vertical layout, effectively utilizes the axial thrust of the turbine to counteract the gravity of the rotor, and achieves the effect of reducing the axial thrust of the magnetic bearing so as to reduce the power consumption of the thrust bearing.
The turbine and the generator are controlled by the magnetic suspension bearing to keep high-speed stable operation, the traditional oil lubrication bearing is replaced, a lubrication oil station is omitted, the magnetic suspension bearing is not in contact with the rotor and has no friction, the heat loss caused by friction of the traditional oil bearing is reduced, and the overall efficiency of the unit is improved.
In order to ensure the safe operation of the magnetic suspension bearing and the asynchronous generator, the integrated generator is also provided with an annular atomizing nozzle 6 for liquid working medium, and the liquid organic working medium is atomized and sprayed on the motor and the magnetic suspension bearing to cool the generator and the magnetic bearing by latent heat of vaporization.
The invention is not limited to the examples, and any equivalent changes to the technical solution of the invention by a person skilled in the art after reading the description of the invention are covered by the claims of the invention.
Claims (3)
1. Vertical asynchronous generator set of integration, its characterized in that:
the magnetic suspension type expansion machine comprises an expansion machine (3) and a generator (7) which are sequentially arranged on the same vertical rotating shaft, wherein magnetic suspension active control bearings (1) are arranged at two ends of the rotating shaft, and magnetic suspension thrust bearings are arranged on the outer sides of the magnetic suspension active control bearings (1) at the upper end of the rotating shaft; the upper end of the rotating shaft is arranged in a generator (7), a generator rotor is arranged, and a generator stator core and a winding are arranged outside the generator rotor; all the components of the generator are placed in the generator housing.
2. The integrated vertical asynchronous generator set of claim 1, wherein:
the magnetic suspension active control bearing (1) comprises a thrust bearing, a radial support bearing and a digital controller.
3. The integrated vertical asynchronous generator set of claim 2, wherein:
the expansion machine (3) is a turbine, movable blades and static blades are arranged outside the shaft, turbine volutes are arranged outside the movable blades and the static blades, and an organic working medium steam inlet is arranged at the front end of each turbine volute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921171930.8U CN210530930U (en) | 2019-07-24 | 2019-07-24 | Integrated vertical asynchronous generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921171930.8U CN210530930U (en) | 2019-07-24 | 2019-07-24 | Integrated vertical asynchronous generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210530930U true CN210530930U (en) | 2020-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921171930.8U Active CN210530930U (en) | 2019-07-24 | 2019-07-24 | Integrated vertical asynchronous generator set |
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| CN (1) | CN210530930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022127855A1 (en) * | 2020-12-16 | 2022-06-23 | 王步明 | Low-temperature waste heat recycling generator for rankine cycle |
-
2019
- 2019-07-24 CN CN201921171930.8U patent/CN210530930U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022127855A1 (en) * | 2020-12-16 | 2022-06-23 | 王步明 | Low-temperature waste heat recycling generator for rankine cycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210730 Address after: 710600 5th floor, Shuguang building, No. 10 TIYU Road, Lintong District, Xi'an City, Shaanxi Province Patentee after: Xi'an Boneng Turbine Machinery Technology Co.,Ltd. Address before: 710600 Qinling Street Office Industrial Park, Lintong District, Xi'an City, Shaanxi Province Patentee before: SHAANXI POWER ENGERGY TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230801 Address after: 710600 Northeast Household, 9th Floor, Unit 2, Building 3, Huaqing Xinyuan, Yinqiao Avenue, Lintong District, Xi'an City, Shaanxi Province Patentee after: Xi'an Dingming Design Service Co.,Ltd. Address before: 710600 5th floor, Shuguang building, No. 10 TIYU Road, Lintong District, Xi'an City, Shaanxi Province Patentee before: Xi'an Boneng Turbine Machinery Technology Co.,Ltd. |