CN219580104U - Air inlet filter device for reducing IGBT fault rate and temperature of wind power converter system - Google Patents
Air inlet filter device for reducing IGBT fault rate and temperature of wind power converter system Download PDFInfo
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- CN219580104U CN219580104U CN202320272388.5U CN202320272388U CN219580104U CN 219580104 U CN219580104 U CN 219580104U CN 202320272388 U CN202320272388 U CN 202320272388U CN 219580104 U CN219580104 U CN 219580104U
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- air inlet
- inlet channel
- channel
- filter screen
- inlet passageway
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- 239000000428 dust Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000005611 electricity Effects 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims description 20
- 238000001914 filtration Methods 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 5
- 230000001939 inductive effect Effects 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 8
- 238000007664 blowing Methods 0.000 description 5
- 230000033764 rhythmic process Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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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
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Reduce wind-powered electricity generation deflector system IGBT fault rate and air inlet filter equipment of temperature, including the air inlet passageway, the filter screen is installed to the entry of air inlet passageway, and the entry of air inlet passageway is equipped with the water conservancy diversion passageway, and the front end entry mid-mounting of water conservancy diversion passageway has the baffle, is located the tip of baffle and installs guiding device in the water conservancy diversion passageway, and guiding device and baffle divide into first air inlet passageway and second air inlet passageway with the water conservancy diversion passageway, and filter screen is all installed to the entry of first air inlet passageway and second air inlet passageway, and dust collector is installed at the inboard that is located the filter screen to first air inlet passageway and second air inlet passageway. The device is through guiding device control first air inlet passageway and air inlet passageway intercommunication, perhaps makes second air inlet passageway and air inlet passageway intercommunication, perhaps makes first air inlet passageway and second air inlet passageway all communicate with the air inlet passageway to remove dust to the filter screen through dust collector, make the filter screen air inlet more smooth and easy, guarantee cooling air flow, thereby reduced the fault rate and the temperature of IGBT.
Description
Technical Field
The utility model relates to the technical field of maintenance of wind turbines, in particular to an air inlet filtering device for reducing the IGBT fault rate and temperature of a wind power conversion system.
Background
A certain wind power project adopts 33 Jinfeng 1.5MW wind cooling units, and the type of units are characterized in that an unstable and irregular alternating current is generated by a generator through a converter, and is rectified and then inverted into the alternating current with the same voltage, the same frequency and the same phase as a power grid to be connected. The unit inevitably reports faults in the running process, and the faults of the current transformer (IGBT) can cause the emergency shutdown of the unit, so that the overall quality of the unit can be greatly hidden trouble. Therefore, the fault of the converter is solved, and the whole operation quality of the unit can be ensured to a certain extent. Through statistics, the total times of faults of the converter in 2017 from 1 month to 6 months are 55 times, the total frequency is 1.67 times/table, the average times of faults per month are 9.17 times, the average times of faults per month are 0.28 times/table, and the fault frequency is high.
Through investigation, due to the blockage of an air inlet channel filter screen, cooling air is seriously reduced to enter IGBT cooling fins (insufficient cooling air flow), poor heat dissipation of the IGBT is caused, and when the temperature of the IGBT reaches 95 ℃ or the temperature difference is greater than 10 ℃, a unit reports the temperature fault of the IGBT. Accordingly, the inventors have improved the air intake passage.
Disclosure of Invention
The utility model aims to solve the technical problems that: the problem that exists among the above-mentioned background art is solved, provides an air inlet filter equipment of reduction wind-powered electricity generation conversion system IGBT fault rate and temperature, and the device passes through guiding device control first air inlet passageway and air inlet passageway intercommunication, perhaps makes second air inlet passageway and air inlet passageway intercommunication, perhaps makes first air inlet passageway and second air inlet passageway all communicate with the air inlet passageway to carry out online dust removal to the filter screen through dust collector, make the filter screen air inlet more smooth and easy, guaranteed cooling air flow, thereby reduced the fault rate and the temperature of IGBT.
In order to achieve the technical characteristics, the aim of the utility model is realized in the following way: reduce wind-powered electricity generation deflector IGBT fault rate and air inlet filter equipment of temperature, including the air inlet passageway, the filter screen is installed to the entry of air inlet passageway, the entry of air inlet passageway is equipped with the water conservancy diversion passageway, and the front end entry mid-mounting of water conservancy diversion passageway has the baffle, is located the tip of baffle and installs guiding device in the water conservancy diversion passageway, guiding device and baffle divide into first air inlet passageway and second air inlet passageway with the water conservancy diversion passageway, guiding device swing position makes first air inlet passageway and air inlet passageway intercommunication, perhaps makes second air inlet passageway and air inlet passageway intercommunication, perhaps makes first air inlet passageway and second air inlet passageway all communicate with the air inlet passageway, all install at the entry of first air inlet passageway and second air inlet passageway the dust collector is installed at the inboard that is located the filter screen.
The air guide device comprises a rotating shaft, a driving device and a swinging plate, wherein the rotating shaft is arranged at the end part of the baffle plate, which is positioned in the air guide channel, the upper end and the lower end of the rotating shaft are respectively and rotatably connected with a bearing seat arranged on the outer wall of the air guide channel, the driving device is fixedly arranged on the outer wall of the air guide channel, the output end of the driving device is connected with the rotating shaft, one end of the swinging plate is connected with the rotating shaft in the air guide channel, and the other end of the swinging plate extends to the air inlet channel.
The driving device is a worm and gear motor speed reducer, and one end of the rotating shaft is inserted into and mounted in an output shaft hole of the worm and gear motor speed reducer.
One end fixed mounting of pivot has the induction plate, and three proximity switch is installed to the outer wall of water conservancy diversion passageway, and induction plate and proximity switch response cooperation to the position to the swing board is fixed a position.
The dust collector includes bracing piece, rotary joint, cleans the pipe, the bracing piece is installed and is located the inboard of filter screen at first air inlet channel and second air inlet channel, and the mid-mounting of bracing piece has rotary joint, rotary joint's inlet end and pipe connection, the end of giving vent to anger is connected with cleaning the pipe, cleans the pipe and is used for carrying out the blowback to the filter screen and cleans.
The cleaning pipe comprises a main pipe, a plurality of nozzles are arranged on one side of the main pipe close to the filter screen, a first rotary nozzle is arranged on the upper side of one end of the main pipe, a second rotary nozzle is arranged on the lower side of the other end of the main pipe, a butt joint is arranged on one side of the main pipe away from the nozzles, and the butt joint is connected with the air outlet end of the rotary joint.
And an electromagnetic valve is arranged on the pipeline.
The utility model has the following beneficial effects:
1. the device is through guiding device control first air inlet passageway and air inlet passageway intercommunication, perhaps makes second air inlet passageway and air inlet passageway intercommunication, perhaps makes first air inlet passageway and second air inlet passageway all communicate with the air inlet passageway to carry out online dust removal to the filter screen through dust collector, make the filter screen air inlet more smooth and easy, guaranteed cooling air flow, thereby reduced the fault rate and the temperature of IGBT.
2. One end of the rotating shaft is fixedly provided with an induction plate, and the outer wall of the diversion channel is provided with three proximity switches, so that the position of the swinging plate can be conveniently positioned.
3. The nozzle is used for carrying out compressed air back-blowing cleaning on the filter screen, the first rotary nozzle and the second rotary nozzle are used for providing rotary acting force for the main pipeline, the filter screen is cleaned in rotation, the air consumption at the same time is reduced, the pressure of compressed air is ensured, and the cleaning effect is good.
4. An electromagnetic valve is arranged on the pipeline, so that the start-stop and working rhythm of the dust removing device can be conveniently controlled.
Drawings
Fig. 1 is a schematic diagram of a front view structure of the present utility model.
FIG. 2 is a schematic view of the cross-sectional structure A-A in FIG. 1.
Fig. 3 is a schematic top view of the present utility model.
Fig. 4 is a schematic perspective view of a cleaning tube according to the present utility model.
In the figure: the device comprises an air inlet channel 10, a diversion channel 11, a partition plate 12, a first air inlet channel 13, a second air inlet channel 14 and a filter screen 15;
the device comprises a flow guiding device 20, a rotating shaft 21, a bearing seat 22, a driving device 23, a swinging plate 24, an induction plate 25 and a proximity switch 26;
the dust collector 30, the support rod 31, the rotary joint 32, the cleaning pipe 33, the main pipe 331, the nozzle 332, the first rotary nozzle 333, the second rotary nozzle 334, the butt joint 335, the pipeline 34 and the electromagnetic valve 35.
Detailed Description
Embodiments of the present utility model will be further described with reference to the accompanying drawings.
Referring to fig. 1-4, an air intake filtering device for reducing the failure rate and the temperature of an IGBT (insulated gate bipolar transistor) of a wind power conversion system comprises an air intake channel 10, wherein a filter screen 15 is installed at an inlet of the air intake channel 10, a diversion channel 11 is arranged at an inlet of the air intake channel 10, a baffle 12 is installed at the middle of an inlet at the front end of the diversion channel 11, a diversion device 20 is installed at the end part of the diversion channel 11, which is positioned at the baffle 12, the diversion device 20 and the baffle 12 divide the diversion channel 11 into a first air intake channel 13 and a second air intake channel 14, the diversion device 20 swings to enable the first air intake channel 13 to be communicated with the air intake channel 10, or enable the second air intake channel 14 to be communicated with the air intake channel 10, or enable the first air intake channel 13 and the second air intake channel 14 to be communicated with the air intake channel 10, the filter screen 15 is installed at the inlets of the first air intake channel 13 and the second air intake channel 14, and a dust removing device 30 is installed at the inner side of the filter screen 15. The device is characterized in that the first air inlet channel 13 is controlled to be communicated with the air inlet channel 10 through the flow guiding device 20, or the second air inlet channel 14 is controlled to be communicated with the air inlet channel 10, or both the first air inlet channel 13 and the second air inlet channel 14 are communicated with the air inlet channel 10, and the filter screen 15 is subjected to online dust removal through the dust removal device 30, so that the air inlet of the filter screen 15 is smoother, the flow of cooling air is ensured, and the failure rate and the temperature of the IGBT are reduced.
When in use, referring to fig. 2, the flow guiding device 20 and the partition 12 divide the flow guiding channel 11 into the first air inlet channel 13 and the second air inlet channel 14, when the flow guiding device 20 is located at the position shown in fig. 2, the second air inlet channel 14 is communicated with the air inlet channel 10, and at this time, the dust removing device 30 in the first air inlet channel 13 works to back-blow and clean the filter screen 15 of the first air inlet channel 13. After a period of time, the flow guiding device 20 swings to the right, the first air inlet channel 13 is communicated with the air inlet channel 10, and at the moment, the dust removing device 30 in the second air inlet channel 14 works to carry out back blowing cleaning on the filter screen 15 of the second air inlet channel 14. Alternately running, thereby ensuring the smoothness of the filter screen. When the ambient temperature increases and the air volume needs to be increased, the flow guiding device 20 can be stopped between the first air inlet channel 13 and the second air inlet channel 14, so that the first air inlet channel 13 and the second air inlet channel 14 are communicated with the air inlet channel 10.
Specifically, the flow guiding device 20 comprises a rotating shaft 21, a driving device 23 and a swinging plate 24, wherein the rotating shaft 21 is arranged at the end part of the partition plate 12, which is positioned in the flow guiding channel 11, the upper end and the lower end of the rotating shaft 21 are respectively rotatably connected and supported with a bearing seat 22 arranged on the outer wall of the flow guiding channel 11, the driving device 23 is fixedly arranged on the outer wall of the flow guiding channel 11, the output end of the driving device is connected with the rotating shaft 21, one end of the swinging plate 24 is connected with the rotating shaft 21 in the flow guiding channel 11, and the other end of the swinging plate extends to the air inlet channel 10. The driving device 23 controls the swinging plate 24 to swing, so that the use is convenient.
In a preferred embodiment, the driving device 23 is a worm and gear motor reducer, and one end of the rotating shaft 21 is inserted into and mounted in an output shaft hole of the worm and gear motor reducer. By utilizing the structure that the worm and gear reducer cannot reversely rotate, the swinging plate 24 swings and operates more stably, and has a simple structure and convenient installation. Preferably, the worm and gear motor reducer adopts NMRV series. Instead of using a worm and gear motor reducer, other motor reducers may be used.
In order to facilitate positioning of the swinging plate 24, referring to fig. 1 and 3, an induction plate 25 is fixedly installed at one end of the rotating shaft 21, three proximity switches 26 are installed on the outer wall of the diversion channel 11, and the induction plate 25 is in inductive fit with the proximity switches 26, so that the position of the swinging plate 24 is positioned. When the device is installed, the positions of the three proximity switches 26 correspond to the three positions of the swinging plate 24, the proximity switches 26 are electrically connected with a PLC, and the start and stop of the driving device 23 are controlled through the PLC.
Referring to fig. 1 and 2, the dust removing device 30 includes a supporting rod 31, a rotary joint 32, and a cleaning tube 33, the supporting rod 31 is installed on the inner side of the filter screen 15 where the first air inlet channel 13 and the second air inlet channel 14 are located, the rotary joint 32 is installed in the middle of the supporting rod 31, the air inlet end of the rotary joint 32 is connected with a pipeline 34, the air outlet end is connected with the cleaning tube 33, and the cleaning tube 33 is used for back-blowing cleaning the filter screen 15. The filter screen 15 is cleaned by back blowing compressed air through the cleaning pipe 33, and the device has simple structure and convenient use. In use, the line 34 is in communication with a source of compressed air.
Preferably, the rotary union 32 is a high-speed pneumatic rotary union of the type SHGS-20.
Specifically, referring to fig. 4, the cleaning tube 33 includes a main tube 331, a plurality of nozzles 332 are installed on a side close to the filter screen 15 of the main tube 331, a first rotating nozzle 333 is disposed on an upper side of one end of the main tube 331, a second rotating nozzle 334 is disposed on a lower side of the other end of the main tube 331, a butt joint 335 is disposed on a side, far from the nozzles 332, of the main tube 331, and the butt joint 335 is connected with an air outlet end of the rotating joint 32. The nozzle 332 is used for the filter screen 15 to carry out compressed air blowback and cleans, and first rotatory nozzle 333 and second rotatory nozzle 334 are used for providing rotatory effort for trunk line 331, cleans filter screen 15 in the rotation, has reduced the gas consumption of same moment, has guaranteed compressed air's pressure, cleans effectually. In fig. 4, the main pipe 331 can be rotated counterclockwise. Of course, instead of the above structure, the cleaning pipe 33 may be simpler, for example, by directly drilling a hole in the main pipe 331.
It should be noted that the dust removing device 30 is a preferred embodiment. In actual use, the dust removing device 30 may be configured to fixedly mount a plurality of rows of cleaning pipes 33 on the rear side of the filter screen 15. Because the purge tube 33 is fixedly installed, the first and second rotary nozzles 333 and 334 are not required.
In order to facilitate control of the start-stop and working cadence of the dust removing device 30, a solenoid valve 35 is mounted on the line 34. When the dust cleaning device is used, the electromagnetic valve 35 is electrically connected with the PLC, and the starting and stopping time and the working rhythm of the electromagnetic valve 35 are controlled by the PLC, for example, the working rhythm of continuous ventilation or the working rhythm of continuous repeated starting and stopping are adopted when dust cleaning.
By the improvement, the fault frequency of the converter per month is reduced from 0.28 times/station to 0.12 times/station, and the target 0.13 times/station is reached.
The working process and principle of the utility model are as follows:
when in use, referring to fig. 2, the swinging plate 24 and the partition plate 12 of the flow guiding device 20 divide the flow guiding channel 11 into the first air inlet channel 13 and the second air inlet channel 14, when the swinging plate 24 is located at the position shown in fig. 2, the second air inlet channel 14 is communicated with the air inlet channel 10, and at this time, the dust removing device 30 in the first air inlet channel 13 works to back-blow and clean the filter screen 15 of the first air inlet channel 13. After a period of time, the swinging plate 24 swings to the right, the first air inlet channel 13 is communicated with the air inlet channel 10, and at the moment, the dust removing device 30 in the second air inlet channel 14 works to perform back blowing cleaning on the filter screen 15 of the second air inlet channel 14. Alternately running, thereby ensuring the smoothness of the filter screen. When the ambient temperature increases and the air volume needs to be increased, the swinging plate 24 of the flow guiding device 20 can stop between the first air inlet channel 13 and the second air inlet channel 14, so that the first air inlet channel 13 and the second air inlet channel 14 are communicated with the air inlet channel 10, and when the filter screen 15 is cleaned, the sequence of closing the channels and cleaning is still adopted.
Claims (7)
1. Reduce wind-powered electricity generation conversion system IGBT fault rate and air inlet filter equipment of temperature, including air inlet channel (10), filter screen (15), its characterized in that are installed to the entry of air inlet channel (10): the inlet of air inlet channel (10) is equipped with water conservancy diversion passageway (11), and the front end entry mid-mounting of water conservancy diversion passageway (11) has baffle (12), and guiding device (20) are installed to the tip that is located baffle (12) in water conservancy diversion passageway (11), and guiding device (20) and baffle (12) divide into first air inlet channel (13) and second air inlet channel (14) with water conservancy diversion passageway (11), guiding device (20) swing position makes first air inlet channel (13) and air inlet channel (10) intercommunication, perhaps makes second air inlet channel (14) and air inlet channel (10) intercommunication, perhaps makes first air inlet channel (13) and second air inlet channel (14) all communicate with air inlet channel (10), the filter screen (15) are all installed to the entry of first air inlet channel (13) and second air inlet channel (14), dust collector (30) are installed to the inboard that is located filter screen (15).
2. The air inlet filtering device for reducing the IGBT fault rate and the temperature of the wind power conversion system according to claim 1, wherein the air inlet filtering device is characterized in that: the air guide device is characterized in that the air guide device (20) comprises a rotating shaft (21), a driving device (23) and a swinging plate (24), the rotating shaft (21) is arranged at the end part of the partition plate (12) located in the air guide channel (11), the upper end and the lower end of the rotating shaft (21) are respectively rotatably connected with a bearing seat (22) arranged on the outer wall of the air guide channel (11) and supported, the driving device (23) is fixedly arranged on the outer wall of the air guide channel (11), the output end of the driving device is connected with the rotating shaft (21), one end of the swinging plate (24) is connected with the rotating shaft (21) in the air guide channel (11), and the other end of the swinging plate extends to the air inlet channel (10).
3. The air inlet filtering device for reducing the IGBT fault rate and the temperature of the wind power conversion system according to claim 2, wherein the air inlet filtering device is characterized in that: the driving device (23) is a worm and gear motor speed reducer, and one end of the rotating shaft (21) is inserted into an output shaft hole of the worm and gear motor speed reducer.
4. The air inlet filtering device for reducing the failure rate and the temperature of the IGBT of the wind power conversion system according to claim 2 or 3, wherein the air inlet filtering device is characterized in that: one end of the rotating shaft (21) is fixedly provided with an induction plate (25), the outer wall of the diversion channel (11) is provided with three proximity switches (26), and the induction plate (25) is in inductive fit with the proximity switches (26), so that the position of the swinging plate (24) is positioned.
5. The air inlet filtering device for reducing the IGBT fault rate and the temperature of the wind power conversion system according to claim 1, wherein the air inlet filtering device is characterized in that: dust collector (30) include bracing piece (31), rotary joint (32), clean pipe (33), bracing piece (31) are installed in first air inlet channel (13) and second air inlet channel (14) and are located the inboard of filter screen (15), and the mid-mounting of bracing piece (31) has rotary joint (32), and the inlet end and the pipeline (34) of rotary joint (32) are connected, and the end of giving vent to anger is connected with clean pipe (33), cleans pipe (33) and is used for carrying out the blowback to filter screen (15).
6. The air inlet filtering device for reducing the IGBT fault rate and the temperature of the wind power conversion system according to claim 5, wherein the air inlet filtering device is characterized in that: the cleaning pipe (33) comprises a main pipe (331), wherein a plurality of nozzles (332) are arranged on one side of the main pipe (331) close to the filter screen (15), a first rotary nozzle (333) is arranged on the upper side of one end of the main pipe (331), a second rotary nozzle (334) is arranged on the lower side of the other end of the main pipe (331), a butt joint (335) is arranged on one side, far away from the nozzles (332), of the main pipe (331), and the butt joint (335) is connected with the air outlet end of the rotary joint (32).
7. The air inlet filtering device for reducing the failure rate and the temperature of the IGBT of the wind power conversion system according to claim 5 or 6, wherein the air inlet filtering device is characterized in that: an electromagnetic valve (35) is arranged on the pipeline (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320272388.5U CN219580104U (en) | 2023-02-21 | 2023-02-21 | Air inlet filter device for reducing IGBT fault rate and temperature of wind power converter system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320272388.5U CN219580104U (en) | 2023-02-21 | 2023-02-21 | Air inlet filter device for reducing IGBT fault rate and temperature of wind power converter system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219580104U true CN219580104U (en) | 2023-08-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320272388.5U Active CN219580104U (en) | 2023-02-21 | 2023-02-21 | Air inlet filter device for reducing IGBT fault rate and temperature of wind power converter system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219580104U (en) |
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2023
- 2023-02-21 CN CN202320272388.5U patent/CN219580104U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240409 Address after: No. 167 Lingang Industrial Park, Dalian Emerging Industry Economic Zone, Zhuanghe City, Dalian, Liaoning Province, 116400 Patentee after: Three Gorges new energy Dalian Power Generation Co.,Ltd. Country or region after: China Address before: Gangouzi Village, Yimatu Town, Fuxin Mongolian Autonomous County, Fuxin City, Liaoning Province, 123000 Patentee before: Three Gorges New Energy Fumeng County Power Generation Co.,Ltd. Country or region before: China |