CN113162304A - Hydroelectric power plant generator damping base - Google Patents
Hydroelectric power plant generator damping base Download PDFInfo
- Publication number
- CN113162304A CN113162304A CN202110501389.8A CN202110501389A CN113162304A CN 113162304 A CN113162304 A CN 113162304A CN 202110501389 A CN202110501389 A CN 202110501389A CN 113162304 A CN113162304 A CN 113162304A
- Authority
- CN
- China
- Prior art keywords
- damping
- generator
- motor mounting
- floating
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention relates to the technical field of hydraulic power plants, and discloses a damping base of a generator of a hydraulic power plant, which comprises a drainage pipeline, a vertical damping mechanism, a horizontal damping mechanism and a motor mounting seat, wherein the drainage pipeline is arranged on the vertical damping mechanism; the vertical damping mechanism is arranged on the drainage pipeline and used for damping treatment of the motor mounting seat in the vertical direction, and comprises a floating seat which is in sliding connection with the drainage pipeline, a floating cavity is arranged inside the floating seat, guide plates are arranged on two sides of the floating seat, which are in contact with water flow, and the floating seat is provided with a motor mounting seat; and the horizontal damping mechanism is arranged on the vertical damping mechanism, is symmetrically arranged relative to the motor mounting seat and is used for damping treatment of the motor mounting seat in the horizontal direction. The damping base is suitable for the generator of the hydraulic power plant, and the vertical damping mechanism is arranged, so that the damping processing of the generator can be realized through the buoyancy of water flow, the damping can be automatically adjusted according to the working state of the generator, and the damping effect of the whole device is improved.
Description
Technical Field
The invention relates to the technical field of hydraulic power plants, in particular to a damping base of a generator of a hydraulic power plant.
Background
A hydraulic power plant is a plant which converts potential energy and kinetic energy of water into electric energy. The basic production process is as follows: water is drawn from the high position of a river or other reservoirs, the water turbine is driven to rotate by the pressure or the flow velocity of the water, the gravitational potential energy and the kinetic energy are converted into mechanical energy, and then the water turbine drives the generator to rotate, so that the mechanical energy is converted into electric energy.
The hydraulic power plant adopts the generator to convert the potential energy of water flow into electric energy, however, the generator can vibrate in the working process, and the current common mode is to directly arrange a damping mechanism at the bottom of the generator.
However, in the process of hydroelectric power generation, there are usually dry periods and rich periods, which results in that the generator does not work continuously for a long time, and the building mechanism at the bottom of the generator cannot be adjusted by itself according to the power generation state, so that improvement is needed.
Disclosure of Invention
The invention provides a damping base for a generator of a hydraulic power plant, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a damping base of a generator of a hydraulic power plant comprises a drainage pipeline, a vertical damping mechanism, a horizontal damping mechanism and a motor mounting seat;
the vertical damping mechanism is arranged on the drainage pipeline and used for damping treatment of the motor mounting seat in the vertical direction, and comprises a floating seat which is in sliding connection with the drainage pipeline, a floating cavity is arranged inside the floating seat, guide plates are arranged on two sides of the floating seat, which are in contact with water flow, and the floating seat is provided with a motor mounting seat;
and the horizontal damping mechanism is arranged on the vertical damping mechanism, is symmetrically arranged relative to the motor mounting seat and is used for damping treatment of the motor mounting seat in the horizontal direction.
As a preferable technical scheme of the invention, a flow guide block is arranged on one side of the drainage pipeline away from the vertical damping mechanism.
As a preferable technical scheme of the invention, arc-shaped heads are arranged on two sides of the flow guide block, which are in contact with water flow.
As a preferable technical scheme of the invention, a sealing assembly is arranged at the joint of the drainage pipeline and the floating seat.
As a preferred technical scheme of the invention, a sliding plate is arranged on the outer side of the floating seat, the sliding plate is slidably connected with a second guide rod, one end of the second guide rod is fixedly connected with the drainage pipeline, a limiting plate is arranged on one side of the second guide rod close to the drainage pipeline, and a second spring is arranged between the limiting plate and the sliding plate.
As a preferred technical solution of the present invention, a distance between the sliding plate and the limiting plate is greater than a distance between the floating seat and the flow guide block.
As a preferable technical scheme, the horizontal damping mechanism comprises fixing plates arranged on a floating seat, a first guide rod is arranged between the two fixing plates positioned on one side of the floating seat, sliding blocks are connected to two sides of the first guide rod in a sliding mode, one side, close to a motor mounting seat, of each sliding block is connected with a supporting rod in a rotating mode, one side, close to the motor mounting seat, of each supporting rod is connected with two sides of a top block in a rotating mode, and a first spring is arranged between each sliding block and each fixing plate.
As a preferable technical scheme of the invention, the number of the horizontal shock absorption mechanisms is more than three.
The invention has the following advantages:
the damping base is suitable for the generator of the hydraulic power plant, the damping treatment of the generator can be realized by the device through the buoyancy of water flow by arranging the vertical damping mechanism, so that the device can perform damping self-adjustment according to the working state of the generator, the damping effect of the whole device is improved, the service life of the device is prolonged, meanwhile, the horizontal damping mechanism is arranged, the damping fluctuation in the horizontal direction generated by the generator is well eliminated, and the noise and the loss of the generator during working are greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a damping mount of a generator of a hydraulic power plant.
Fig. 2 is a front view of a hydroelectric power plant generator damper.
Fig. 3 is a partially enlarged view of a in fig. 2.
Fig. 4 is a schematic structural diagram of a vertical damping mechanism in a damping mount of a generator of a hydraulic power plant.
Fig. 5 is a front view of fig. 4.
In the figure: 1. a drain line; 2. a floating seat; 3. a motor mounting seat; 4. a fixing plate; 5. a first spring; 6. a first guide bar; 7. a slider; 8. a support bar; 9. a top block; 10. a flow guide block; 11. a baffle; 12. a second guide bar; 13. a limiting plate; 14. a second spring; 15. a sliding plate; 16. a floating cavity; 17. an arc-shaped head; 18. and (7) sealing the assembly.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In one embodiment, please refer to fig. 1-5, a damping mount for a generator of a hydraulic power plant includes a drainage pipe 1, a vertical damping mechanism, a horizontal damping mechanism, and a motor mounting base 3; the vertical damping mechanism is arranged on the drainage pipeline 1 and used for damping treatment of the motor mounting seat 3 in the vertical direction, and comprises a floating seat 2 which is in sliding connection with the drainage pipeline 1, a floating cavity 16 is arranged inside the floating seat 2, the buoyancy of the whole vertical damping mechanism is improved by arranging the floating cavity 16, so that the subsequent damping treatment is facilitated, guide plates 11 are arranged on two sides of the floating seat 2, which are in contact with water flow, the guide plates 11 are arranged in the flow direction of the water flow, the lower ends of the two guide plates 11 are arranged close to each other in an inclined manner, so that the guide plates 11 can drive the water flow to move, and the motor mounting seat 3 is arranged on the floating seat 2; and the horizontal damping mechanism is arranged on the vertical damping mechanism, is symmetrically arranged relative to the motor mounting seat 3 and is used for damping treatment of the motor mounting seat 3 in the horizontal direction. The vertical damping mechanism is arranged above the middle part of the drainage pipeline 1, the horizontal damping mechanism is arranged on the outer side of the floating seat 2, and the horizontal damping mechanism is symmetrically arranged relative to the center of the floating seat 2.
In one aspect of this embodiment, referring to fig. 4 and fig. 5, a flow guiding block 10 is disposed on a side of the drainage pipeline 1 away from the vertical damping mechanism. The flow guide block 10 and the floating seat 2 are located on the same cross section of the drainage pipeline 1, so that the cross section of water flow is reduced when the water flow flows between the flow guide block 10 and the vertical damping mechanism, the flow speed of the water flow is increased, and the vertical damping mechanism can be jacked up by the water flow.
In one aspect of this embodiment, referring to fig. 5, the two sides of the flow guiding block 10 contacting with the water flow are provided with arc-shaped heads 17. Through setting up arc head 17 for rivers and the contact of water conservancy diversion piece 10 are more level and smooth, have reduced the resistance of water conservancy diversion piece 10 to rivers, have avoided the loss of the kinetic potential energy of rivers. The loss of water flow potential energy is reduced, and the water flow can provide more supporting force when supporting the whole vertical damping mechanism to move upwards, so that the building effect of the whole device is improved.
In one aspect of the present embodiment, referring to fig. 4 and 5, a sealing assembly 18 is disposed at the connection between the drainage pipe 1 and the floating seat 2. The sealing assembly 18 may be a sealing ring or other sealing fitting, so that no leakage problem occurs between the floating seat 2 and the drainage pipe 1, and no leakage problem occurs in the drainage pipe 1. And the sealing assembly 18 is arranged to be detachable, when the sealing assembly 18 is damaged, the sealing assembly 18 can be directly replaced, so that the later maintenance of the whole device is simpler, and the service life is prolonged.
In one aspect of this embodiment, referring to fig. 4 and fig. 5, a sliding plate 15 is disposed outside the floating seat 2, the sliding plate 15 is slidably connected to the second guiding rod 12, one end of the second guiding rod 12 is fixedly connected to the drainage pipeline 1, a limiting plate 13 is disposed on a side of the second guiding rod 12 close to the drainage pipeline 1, and a second spring 14 is disposed between the limiting plate 13 and the sliding plate 15. Through setting up second spring 14 for there is not rivers in the inside of earial drainage pipeline 1, perhaps rivers are less, and second spring 14 is compressed, thereby provides certain buoyancy for floating seat 2 through second spring 14, reduces floating seat 2 to the pressure of water conservancy diversion piece 10, has improved the life of whole device.
In one aspect of this embodiment, referring to fig. 4 and 5, the distance between the sliding plate 15 and the limiting plate 13 is greater than the distance between the floating seat 2 and the flow guiding block 10. By increasing the distance between the sliding plate 15 and the stopper plate 13, there is enough space for placing the second spring 14, and also enough space for the second spring 14 to perform the compression process, providing the supporting force.
In one aspect of this embodiment, please refer to fig. 1-3, the horizontal damping mechanism includes a fixing plate 4 disposed on the floating seat 2, a first guiding rod 6 is disposed between two fixing plates 4 on one side of the floating seat 2, two sides of the first guiding rod 6 are slidably connected to a sliding block 7, one side of the sliding block 7 close to the motor mounting seat 3 is rotatably connected to a supporting rod 8, one side of the supporting rod 8 close to the motor mounting seat 3 is rotatably connected to two sides of a top block 9, and a first spring 5 is disposed between the sliding block 7 and the fixing plate 4. Under the effect of first spring 5, kicking block 9 removes towards the direction that is close to motor mount pad 3 to realized pressing from both sides tightly motor mount pad 3 on the horizontal plane, also realized horizontal absorbing effect.
In one aspect of this embodiment, referring to fig. 1-3, the number of horizontal damping mechanisms is greater than three. And three horizontal damper are for motor mount pad 3 symmetry setting to make motor installation mechanism can all obtain fine shock attenuation processing in whole horizontal direction, and when horizontal damper's quantity was more, the absorbing effect was better.
This embodiment is at the implementation in-process, is connected earial drainage pipeline 1 and hydroelectric power generation's pipeline for the rivers that incline and go out can get into through earial drainage pipeline 1's one end during the electricity generation, flow out from earial drainage pipeline 1's the other end, thereby make whole device can mutually support the use with the flow of rivers, and can install relevant generator on motor mount pad 3, set up motor mount pad 3 at the top of floating seat 2 simultaneously, arrange in between a plurality of horizontal damper.
When the power generation is carried out, the generator generates two vibration waves in the horizontal direction and the vertical direction for the floating seat 2, at the moment, water flow generated after power generation enters through one end of the drainage pipeline 1, at the moment, the water flow flows through the space between the floating seat 2 and the flow guide block 10, since the section between floating seat 2 and deflector 10 is drastically reduced with respect to the rest of leakage flow duct 1, floating seat 2 will move upwards, thereby realizing the effect that the floating seat 2 is jacked up by water flow, the damping treatment of the floating seat 2 on the vertical plane is realized by the buoyancy of the water flow and the supporting force of the second spring 14, the generator starts to work, the motor mounting seat 3 clamped by the jacking block 9 moves on the horizontal plane, under the action of the first spring 5, the top block 9 always keeps the effect of clamping the motor mounting seat 3, so that the continuous deformation of the first spring 5 continuously offsets the vibration of the generator in the horizontal direction.
When the generator does not work, the water flow passing through the drainage pipeline 1 is reduced, the second spring 14 is compressed, when the water flow is completely stopped, the floating seat 2 directly falls on the flow guide block 10, the shock absorption in the vertical direction of the whole device is stopped at the moment, the generator also stops working without generating shock waves, the second spring 14 is subjected to constant pressure at the moment, the fatigue of the second spring 14 is reduced, and the service life of the second spring 14 is prolonged.
The damping base is suitable for the generator of the hydraulic power plant, the damping treatment of the generator can be realized by the device through the buoyancy of water flow by arranging the vertical damping mechanism, so that the device can perform damping self-adjustment according to the working state of the generator, the damping effect of the whole device is improved, the service life of the device is prolonged, meanwhile, the horizontal damping mechanism is arranged, the damping fluctuation in the horizontal direction generated by the generator is well eliminated, and the noise and the loss of the generator during working are greatly reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. A damping base of a generator of a hydraulic power plant is characterized by comprising a drainage pipeline, a vertical damping mechanism, a horizontal damping mechanism and a motor mounting seat;
the vertical damping mechanism is arranged on the drainage pipeline and used for damping treatment of the motor mounting seat in the vertical direction, and comprises a floating seat which is in sliding connection with the drainage pipeline, a floating cavity is arranged inside the floating seat, guide plates are arranged on two sides of the floating seat, which are in contact with water flow, and the floating seat is provided with a motor mounting seat;
and the horizontal damping mechanism is arranged on the vertical damping mechanism, is symmetrically arranged relative to the motor mounting seat and is used for damping treatment of the motor mounting seat in the horizontal direction.
2. A hydroelectric generator damping mount according to claim 1, wherein a flow deflector is disposed on a side of the bleed conduit remote from the vertical damping mechanism.
3. The damping mount for a generator of a hydraulic power plant according to claim 2, wherein the flow guiding block is provided with arc-shaped heads at two sides contacting with water flow.
4. A hydroelectric power plant generator damping mount according to claim 1, wherein a sealing assembly is provided at a junction of the bleed flow conduit and the floating mount.
5. The hydroelectric generator damping base of claim 2, wherein a sliding plate is disposed outside the floating seat, the sliding plate is slidably connected to the second guide rod, one end of the second guide rod is fixedly connected to the drainage pipe, a limiting plate is disposed on a side of the second guide rod close to the drainage pipe, and a second spring is disposed between the limiting plate and the sliding plate.
6. The hydroelectric generator damping mount of claim 5, wherein a distance between the sliding plate and the limiting plate is greater than a distance between the floating seat and the deflector.
7. The hydroelectric generator damping base of claim 1, wherein the horizontal damping mechanism comprises a fixing plate disposed on the floating seat, a first guide rod is disposed between two fixing plates on one side of the floating seat, a sliding block is slidably connected to two sides of the first guide rod, the sliding block is rotatably connected to a support rod on one side close to the motor mounting seat, the support rod is rotatably connected to two sides of the top block on one side close to the motor mounting seat, and a first spring is disposed between the sliding block and the fixing plate.
8. A hydroelectric power plant generator damping mount according to claim 7, wherein the number of horizontal damping mechanisms is greater than three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110501389.8A CN113162304A (en) | 2021-05-08 | 2021-05-08 | Hydroelectric power plant generator damping base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110501389.8A CN113162304A (en) | 2021-05-08 | 2021-05-08 | Hydroelectric power plant generator damping base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113162304A true CN113162304A (en) | 2021-07-23 |
Family
ID=76873846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110501389.8A Withdrawn CN113162304A (en) | 2021-05-08 | 2021-05-08 | Hydroelectric power plant generator damping base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113162304A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580367A (en) * | 2013-11-19 | 2014-02-12 | 无锡建仪仪器机械有限公司 | Buffering device of vibration motor |
| CN203714145U (en) * | 2014-01-17 | 2014-07-16 | 上海海事大学 | Chip channel buoy utilizing wave energy |
| CN207920884U (en) * | 2017-12-20 | 2018-09-28 | 江西省九都泵业有限公司 | A kind of stability is strong and water pump with long service life |
| CN108631496A (en) * | 2018-05-15 | 2018-10-09 | 丁志鹏 | A kind of motor snubber base of more vibrational structures |
| CN208337288U (en) * | 2018-05-28 | 2019-01-04 | 安徽东鹏知识产权运营有限公司 | A kind of new-generation unit shell structure |
| CN208571814U (en) * | 2018-07-16 | 2019-03-01 | 贵州大元科技机械有限公司 | A kind of motor driven more |
| CN210491418U (en) * | 2019-08-29 | 2020-05-08 | 安徽工业大学 | Electrical cabinet with multi-directional shockproof function |
| CN210806948U (en) * | 2019-12-06 | 2020-06-19 | 四川大电安装工程有限责任公司 | Vertical hydraulic generator antivibration safety arrangement |
| CN211667088U (en) * | 2020-01-22 | 2020-10-13 | 福建鑫恒鑫电机有限公司 | Suspension type damping device |
| CN212079761U (en) * | 2020-04-26 | 2020-12-04 | 江苏鑫丰源机电有限公司 | Mixed flow pump with anti-seismic protection base |
| CN112228503A (en) * | 2019-07-15 | 2021-01-15 | 扬州市新港电机有限公司 | Damping mechanism for generator |
| CN112366884A (en) * | 2020-10-22 | 2021-02-12 | 吕恒王涛 | Protective device for reducing noise of motor |
| CN212959069U (en) * | 2020-07-07 | 2021-04-13 | 沈阳比斯特泵业制造有限公司 | Water pump that job stabilization nature is high |
-
2021
- 2021-05-08 CN CN202110501389.8A patent/CN113162304A/en not_active Withdrawn
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580367A (en) * | 2013-11-19 | 2014-02-12 | 无锡建仪仪器机械有限公司 | Buffering device of vibration motor |
| CN203714145U (en) * | 2014-01-17 | 2014-07-16 | 上海海事大学 | Chip channel buoy utilizing wave energy |
| CN207920884U (en) * | 2017-12-20 | 2018-09-28 | 江西省九都泵业有限公司 | A kind of stability is strong and water pump with long service life |
| CN108631496A (en) * | 2018-05-15 | 2018-10-09 | 丁志鹏 | A kind of motor snubber base of more vibrational structures |
| CN208337288U (en) * | 2018-05-28 | 2019-01-04 | 安徽东鹏知识产权运营有限公司 | A kind of new-generation unit shell structure |
| CN208571814U (en) * | 2018-07-16 | 2019-03-01 | 贵州大元科技机械有限公司 | A kind of motor driven more |
| CN112228503A (en) * | 2019-07-15 | 2021-01-15 | 扬州市新港电机有限公司 | Damping mechanism for generator |
| CN210491418U (en) * | 2019-08-29 | 2020-05-08 | 安徽工业大学 | Electrical cabinet with multi-directional shockproof function |
| CN210806948U (en) * | 2019-12-06 | 2020-06-19 | 四川大电安装工程有限责任公司 | Vertical hydraulic generator antivibration safety arrangement |
| CN211667088U (en) * | 2020-01-22 | 2020-10-13 | 福建鑫恒鑫电机有限公司 | Suspension type damping device |
| CN212079761U (en) * | 2020-04-26 | 2020-12-04 | 江苏鑫丰源机电有限公司 | Mixed flow pump with anti-seismic protection base |
| CN212959069U (en) * | 2020-07-07 | 2021-04-13 | 沈阳比斯特泵业制造有限公司 | Water pump that job stabilization nature is high |
| CN112366884A (en) * | 2020-10-22 | 2021-02-12 | 吕恒王涛 | Protective device for reducing noise of motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103967714A (en) | Wind energy-wave energy-tidal current energy integrated power generation structure based on single pile platform | |
| US20070292259A1 (en) | Floating power plant for extracting energy from flowing water | |
| CN111923990B (en) | A conveyer for diesel generating set production | |
| CN109723601B (en) | Tidal power generation device | |
| CN212296715U (en) | Wind energy and wave energy integrated power generation device | |
| CN209741790U (en) | Comb-type breakwater integrating wave energy and tidal current energy power generation device | |
| CN114370043B (en) | Can cushion booster station fixing device that wave impacted | |
| CN111911339A (en) | Floating type tidal energy water turbine with surging power device | |
| CN112901418B (en) | Ocean energy comprehensive utilization system integrating wind, wave and flow energy power generation device | |
| CN113162304A (en) | Hydroelectric power plant generator damping base | |
| CN109750645A (en) | The comb type breakwater of integrated wave energy and tidal current energy generating equipment | |
| CN105673313A (en) | Micro-water-head water turbine with lifting and steering functions and control method | |
| KR20130040970A (en) | Rotary device by hydraulic compression | |
| CN108953041B (en) | Power generation device utilizing wave energy | |
| CN220204661U (en) | Water turbine sealing structure | |
| CN111472921A (en) | Wave energy piezoelectric power generation buoy based on mass spring system | |
| CN112523921A (en) | Multi-body power generation ship capable of generating tidal current energy and river energy | |
| CN212535918U (en) | Water flow power generation facility capable of automatically yawing | |
| CN219671229U (en) | Water conservancy slope protection structure | |
| CN216699710U (en) | Vertical hydro-generator antivibration safety arrangement | |
| CN213982471U (en) | Slide rail type buffer | |
| CN217761179U (en) | Sea wave fluctuation power generation device | |
| CN215482785U (en) | Energy dissipation hole for hydraulic engineering | |
| CN220705832U (en) | Small-sized power generation device | |
| CN217683984U (en) | Circulating water return of power plant increases hydraulic turbine subassembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210723 |