CN112152202A - Electrical wiring system of wet desulphurization power supply section - Google Patents
Electrical wiring system of wet desulphurization power supply section Download PDFInfo
- Publication number
- CN112152202A CN112152202A CN202010873835.3A CN202010873835A CN112152202A CN 112152202 A CN112152202 A CN 112152202A CN 202010873835 A CN202010873835 A CN 202010873835A CN 112152202 A CN112152202 A CN 112152202A
- Authority
- CN
- China
- Prior art keywords
- power supply
- circuit breaker
- miniature circuit
- electrical
- dcs
- 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.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/606—Carbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses an electrical wiring system of a wet desulphurization power supply section, which comprises a power supply end, a change-over switch and a miniature circuit breaker; a DCS starting button and a DCS stopping button are arranged between the power supply end and the change-over switch; an incoming line switch is arranged between the change-over switch and the miniature circuit breaker, and the incoming line switch is led from a 6kV power distribution room; the miniature circuit breaker comprises a closing loop and an opening loop, the closing loop is connected with a DCS starting button through an incoming line switch, and the opening loop is connected with a DCS stopping button. The electrical wiring system of the wet desulphurization power section provided by the invention has a reasonable structure, cancels the original closing and locking point of the incoming line switch, realizes the uninterrupted switching operation of the wet desulphurization power section and the motor control center section, effectively lightens the switching workload, improves the reliability of equipment, eliminates the risk of damaging the equipment, and ensures the safe and stable operation of the desulphurization equipment.
Description
Technical Field
The invention belongs to the technical field of wet desulphurization, and relates to an electrical wiring system of a wet desulphurization power supply section.
Background
In the wet desulphurization system, the desulphurization electric power distribution device is originally designed as follows: a locking point is arranged for a 380V power supply section frame breaker, and a 6KV side power supply of a desulfurization transformer is respectively transmitted to a #1-6KV power distribution device and a #2-6KV power distribution device of a main plant. During design, the secondary side switch ring of 380V desulfuration is not allowed to run, and in order to prevent asynchronous paralleling of 380V desulfuration distribution devices, a locking point is specially added during design.
The operation mode of stopping and withdrawing all loads of the power supply section, switching and then putting the power supply section into operation has the following defects: (1) because the density of the slurry in the slurry tank is higher, the motor of the slurry tank stirrer cannot be started after the slurry tank is switched off due to overload; (2) all the precipitation slurry in the tank needs to be emptied each time, and the tank can be put into operation, so that the operation efficiency is influenced; (3) the slurry supply is not timely, the environment-friendly emission index of desulfurization can be influenced, a large amount of manpower is consumed, and the normal operation of a desulfurization system is influenced.
Therefore, it is necessary to design an electrical connection system for a wet desulphurization power section to solve the technical problems in the prior art.
Disclosure of Invention
The invention aims to solve at least part of technical problems in the prior art to a certain extent, and provides an electrical wiring system of a wet desulphurization power section, which has a reasonable structure, cancels the original inlet wire opening and closing locking point, realizes the uninterrupted switching operation of the wet desulphurization power section and a motor control center section, effectively lightens the switching workload, improves the equipment reliability, avoids the risk of damaging the equipment, and ensures the safe and stable operation of the desulphurization equipment.
In order to solve the technical problem, the invention provides an electrical wiring system of a wet desulphurization power supply section, which comprises a power supply end, a change-over switch and a miniature circuit breaker; a DCS starting button and a DCS stopping button are arranged between the power supply end and the change-over switch; an incoming line switch is arranged between the change-over switch and the miniature circuit breaker, and the incoming line switch is led from a 6kV power distribution room; the miniature circuit breaker comprises a closing loop and an opening loop, the closing loop is connected with a DCS starting button through an incoming line switch, and the opening loop is connected with a DCS stopping button.
As a preferred embodiment, the change-over switch is provided with a DCS control terminal.
As a preferred embodiment, the electrical wiring system further includes an undervoltage protector disposed at one side of the micro circuit breaker and connected to a terminal inside the micro circuit breaker.
As a preferred embodiment, the electrical wiring system further comprises a first intermediate relay and a current transducer connected to the power supply terminal.
As a preferred embodiment, the electrical wiring system further comprises a second intermediate relay connected between the power supply terminal and the miniature circuit breaker.
As a preferred embodiment, the miniature circuit breaker is also provided with an energy storage motor terminal.
As a preferred embodiment, the miniature circuit breaker is further provided with an electrical interlock connection terminal.
In a preferred embodiment, the energy storage motor terminal is connected with a first indicator light.
As a preferred embodiment, the electrical wiring system further comprises a second indicator light connected in parallel to said second intermediate relay.
As a preferred embodiment, the power supply end is direct current 110V.
The invention has the beneficial effects that:
the electrical wiring system of the wet desulphurization power section provided by the invention has a reasonable structure, cancels the original closing and locking point of the incoming line switch, realizes the uninterrupted switching operation of the wet desulphurization power section and the motor control center section, effectively lightens the switching workload, improves the reliability of equipment, eliminates the risk of damaging the equipment, and ensures the safe and stable operation of the desulphurization equipment.
Drawings
The above advantages of the present invention will become more apparent and more readily appreciated from the detailed description set forth below when taken in conjunction with the drawings, which are intended to be illustrative, not limiting, of the invention and in which:
FIG. 1 is a schematic diagram of an electrical wiring system for a wet desulfurization power section in accordance with the present invention.
In the drawings, the reference numerals denote the following components:
10. a power supply terminal;
20. a transfer switch;
30. a miniature circuit breaker; 31. a closing loop; 32. a brake separating loop;
a DCS start button; a DCS stop button;
50. an incoming line switch;
60. an under-voltage protector;
71. a first intermediate relay; 72. a second intermediate relay;
80. a current transmitter;
91. a first indicator light; 92. and a second indicator light.
Detailed Description
FIG. 1 is a schematic diagram of an electrical wiring system for a wet desulfurization power section according to the present invention, and the present invention will be described in detail with reference to the following embodiments and accompanying drawings.
The examples described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of respective portions and their mutual relationships. It is noted that the drawings are not necessarily to the same scale so as to clearly illustrate the structures of the various elements of the embodiments of the invention. Like reference numerals are used to denote like parts.
The energy structure mainly based on coal in China cannot be realized at presentAnd (6) changing. The flue gas discharged by coal combustion contains the main component SO of air pollution2，SO2Can seriously pollute the atmospheric environment, destroy the ecological balance, damage the health of human beings and animals and plants, cause large-area acid rain, corrode and destroy buildings, and have great harm to the living environment and the ecological environment of human beings.
The desulfurization method is divided into desulfurization before combustion, desulfurization during combustion and desulfurization after combustion, also called flue gas desulfurization, is used for treating SO2The main technical means of pollution. Flue gas desulfurization techniques can be classified into three major categories, wet, dry and semi-dry, according to the dry and wet forms of the desulfurizing agent and the desulfurization product. The wet desulphurization technology is widely applied due to the advantages of high desulphurization efficiency, high operation reliability, mature technology and the like.
At present, the wet flue gas desulfurization mainly adopts an alkaline absorbent method, mainly comprising a limestone/lime method, a magnesium method, a seawater method, a double alkali method, an ammonia method and the like, and different alkaline absorbents are adopted to contact with the flue gas to absorb sulfur dioxide to generate different byproducts. CaCO is adopted for limestone/lime-gypsum wet flue gas desulfurization3Or Ca (OH)2The prepared slurry removes SO in the flue gas2Then forced oxidation is carried out by introducing oxidizing air into the slurry, and the main chemical reactions comprise absorption reaction, neutralization reaction, oxidation reaction and crystallization.
The desulfurization system needs accurate electrical control, and the safe and stable operation of the system is ensured. In the prior art, desulfurization electric systems #1 and #2 are respectively connected to 6KV power supply sections of main plants #1 and #2, and 6KV power distribution rooms are not arranged in desulfurization islands. When the unit is shut down to overhaul and switch back, the original design desulfurization 380V bus-tie switch switching-on condition is as follows: only one of two incoming line power switches of the 380V desulfurization power section is at the switching-off position, and the 380V bus interconnection switch is allowed to be switched on. The 380V bus-bar switch is in the opening position, and the two incoming line switches of the 380V desulfuration section allow closing.
In the existing design, the switching-on condition of a 380VMCC section power supply incoming line switch for desulfurization is that only one switch is in a separating position, and the other 380VMCC section power supply incoming line switch can be switched on. The MCC is a MOTOR CONTROL CENTER, also called MOTOR CONTROL CENTER and MOTOR CONTROL CENTER, and is called MOTOR CONTROL CENTER in english.
Therefore, the power supply of the 380V desulfurization power supply section and the power supply of the 380V desulfurization MCC section are switched over by stopping all loads of the section and quitting, and then switching over the section and putting into operation. Such an operation causes the following problems: because the density of the slurry in the slurry tank is higher, the motor of the slurry tank stirrer cannot be started after the slurry tank is switched off due to overload. All the precipitation slurry in the tank needs to be emptied each time before it can be put into operation. The slurry supply is not timely to a certain extent, the desulfurization environment-friendly discharge index is influenced, and a large amount of manpower is consumed.
In order to solve the above problems, the structural schematic diagram of the electrical wiring system of the wet desulphurization power section is shown in fig. 1. The electrical wiring system of the wet desulphurization power supply section comprises a power supply end 10, a change-over switch 20 and a miniature circuit breaker 30; a DCS starting button 41 and a DCS stopping button 42 are arranged between the power supply end 10 and the change-over switch 20; an incoming line switch 50 is arranged between the change-over switch 20 and the miniature circuit breaker 30, and the incoming line switch 50 is led from a 6kV power distribution room; the miniature circuit breaker 30 comprises a closing loop 31 and an opening loop 32, the closing loop 31 is connected with a DCS starting button 41 through an incoming line switch 50, and the opening loop 32 is connected with a DCS stopping button 42. In the embodiment shown in fig. 1, the power supply terminal 10 is dc 110V.
As an embodiment of the present invention, the changeover switch 20 is provided with a DCS control terminal. The DCS control wiring terminal is connected with the DCS control part to realize local connection with the DCS control part.
Further, the electrical connection system further includes an undervoltage protector 60 disposed at one side of the micro circuit breaker 30 and connected to a terminal inside the micro circuit breaker 30. Namely, the bus is lost, and the switch cannot be switched on, so that the safety of the electric wiring system is ensured.
In the embodiment shown in fig. 1, the electrical wiring system further comprises a first intermediate relay 71 and a current transducer 80, which are connected to the power supply terminal 10. The electrical wiring system further comprises a second intermediate relay 72 connected between the power supply terminal 10 and the miniature circuit breaker 30. As one aspect of this embodiment, the electrical wiring system further includes a second indicator light 92 connected in parallel with the second intermediate relay 72 to cause the state of the second intermediate circuit breaker 72.
As another embodiment of the present invention, the miniature circuit breaker 30 is further provided with a stored energy motor terminal. The switch has an energy storage function, stores partial capacity when being disconnected and is used for switching on or switching off. As an aspect of this embodiment, the energy storage motor terminal is connected with a first indicator light 91.
The miniature circuit breaker 30 is also provided with electrically interlocking terminals. It is understood that the miniature circuit breaker 30 is also provided with terminals for other functional modules.
The electric wiring system of the wet desulphurization power section is applied to a wet desulphurization system, and a locking point between an incoming line switch of the desulphurization 380V power section and a bus-tie switch of the 380V power section is removed, and a locking point between the MCC power switches of the desulphurization 380V is removed. The uninterrupted switching operation of the desulfurized 380V power supply section and the common 380VMCC section is realized. The safety and reliability of the equipment are improved, the labor and material cost caused by equipment failure due to power failure and switching are saved, and the energy-saving effect is realized.
Compared with the defects and shortcomings of the prior art, the electrical wiring system of the wet desulphurization power supply section provided by the invention is reasonable in structure, the original inlet wire opening and closing locking point is cancelled, the uninterrupted switching operation of the wet desulphurization power supply section and the motor control center section is realized, the switching workload is effectively reduced, the equipment reliability is improved, the risk of damaging equipment is avoided, and the safe and stable operation of desulphurization equipment is ensured.
The present invention is not limited to the above embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which are the same as or similar to the technical solutions of the present invention, fall within the protection scope of the present invention.
Claims (10)
1. An electrical wiring system of a wet desulphurization power supply section is characterized by comprising a power supply end, a change-over switch and a miniature circuit breaker; a DCS starting button and a DCS stopping button are arranged between the power supply end and the change-over switch; an incoming line switch is arranged between the change-over switch and the miniature circuit breaker, and the incoming line switch is led from a 6kV power distribution room; the miniature circuit breaker comprises a closing loop and an opening loop, the closing loop is connected with a DCS starting button through an incoming line switch, and the opening loop is connected with a DCS stopping button.
2. The electrical patching system of claim 1, wherein the transfer switch is configured with a DCS control terminal.
3. The electrical patching system of claim 1, further comprising an under voltage protector disposed on one side of the miniature circuit breaker and connected to a terminal inside the miniature circuit breaker.
4. The electrical patching system of claim 1, further comprising a first intermediate relay and current transducer connected to the power supply terminal.
5. The electrical patching system of claim 1, further comprising a second intermediate relay connected between the power supply terminal and the miniature circuit breaker.
6. The electrical patching system of claim 1, wherein the miniature circuit breaker is further configured with an energy storage motor terminal.
7. The electrical patching system of claim 1, wherein the miniature circuit breaker is further configured with an electrical interlock terminal.
8. The electrical patching system of claim 6, wherein a first indicator light is connected to the energy storage motor terminals.
9. The electrical wiring system of claim 5 further comprising a second indicator light connected in parallel with the second intermediate relay.
10. The electrical patching system of claim 1, wherein the power supply terminal is dc 110V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010873835.3A CN112152202A (en) | 2020-08-26 | 2020-08-26 | Electrical wiring system of wet desulphurization power supply section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010873835.3A CN112152202A (en) | 2020-08-26 | 2020-08-26 | Electrical wiring system of wet desulphurization power supply section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112152202A true CN112152202A (en) | 2020-12-29 |
Family
ID=73888294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010873835.3A Pending CN112152202A (en) | 2020-08-26 | 2020-08-26 | Electrical wiring system of wet desulphurization power supply section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112152202A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203983745U (en) * | 2014-08-05 | 2014-12-03 | 厦门市海悦电气设备有限公司 | A kind of switch cubicle power supply adjustment System |
| CN205876869U (en) * | 2016-06-22 | 2017-01-11 | 济南重工股份有限公司 | High -low pressure oil station control system is ground in desulfurization |
| CN210468801U (en) * | 2019-10-23 | 2020-05-05 | 国网山东省电力公司淄博供电公司 | Special dual-power non-sensing switching cabinet for bypass live working of 0.4kV branch box |
| CN111244810A (en) * | 2020-03-27 | 2020-06-05 | 大唐贵州发耳发电有限公司 | Switching-on and switching-off signal circuit of equipment switch |
| CN212991974U (en) * | 2020-08-26 | 2021-04-16 | 北京国电龙源环保工程有限公司 | Electrical wiring system of desulfurization PC section |
-
2020
- 2020-08-26 CN CN202010873835.3A patent/CN112152202A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203983745U (en) * | 2014-08-05 | 2014-12-03 | 厦门市海悦电气设备有限公司 | A kind of switch cubicle power supply adjustment System |
| CN205876869U (en) * | 2016-06-22 | 2017-01-11 | 济南重工股份有限公司 | High -low pressure oil station control system is ground in desulfurization |
| CN210468801U (en) * | 2019-10-23 | 2020-05-05 | 国网山东省电力公司淄博供电公司 | Special dual-power non-sensing switching cabinet for bypass live working of 0.4kV branch box |
| CN111244810A (en) * | 2020-03-27 | 2020-06-05 | 大唐贵州发耳发电有限公司 | Switching-on and switching-off signal circuit of equipment switch |
| CN212991974U (en) * | 2020-08-26 | 2021-04-16 | 北京国电龙源环保工程有限公司 | Electrical wiring system of desulfurization PC section |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203056682U (en) | Power plant black-start special-purpose diesel generating set and control system thereof | |
| CN103001254B (en) | Alternating current and direct current hybrid micro-grid system | |
| CN113162215B (en) | Emergency power supply system for replacing offshore platform diesel generator system and control method | |
| CN212991974U (en) | Electrical wiring system of desulfurization PC section | |
| CN201413941Y (en) | Transformer intelligent air-cooling control cabinet | |
| CN112152202A (en) | Electrical wiring system of wet desulphurization power supply section | |
| CN201750146U (en) | DC power supply system | |
| CN217388311U (en) | Automatic switching device for low-voltage power distribution units of string-type photovoltaic power station | |
| CN115981227A (en) | Intrinsic safety explosion-proof remote redundant IO substation device | |
| CN203422429U (en) | Standby automatic switch simulation breaker test apparatus | |
| CN105470822B (en) | A kind of power supply-distribution system of organic amine desulfurization acid-making process | |
| CN205319518U (en) | Power supply and distribution system of organic amine desulfurization relieving haperacidity technology | |
| CN202798126U (en) | Automatic switching system for uninterrupted power supply of PLC (programmable logic controller) | |
| CN206117293U (en) | Each other is equipped with control circuit industrial furnace fan dual supply converter | |
| CN211018385U (en) | Auxiliary power intelligent management system of offshore wind generating set | |
| CN204696788U (en) | A kind of large-size thermal power plant high-voltage Auxiliary power supply three power supply automatic switchover wiring construction | |
| CN205017101U (en) | Switching -on device is divided in a distant place | |
| CN213521260U (en) | Remote operation system for hard pressing plate | |
| CN209100760U (en) | Converter valve cooling system and converter station converter valve | |
| CN112952796A (en) | Power utilization system wiring of offshore flexible direct current converter station and operation method thereof | |
| CN208835827U (en) | A kind of energy-storage battery based on thermal power plant's AGC frequency modulation makees the spare system of station service | |
| CN202634265U (en) | Optimized circuit of air-cooling frequency converter for thermal power plant | |
| CN218005957U (en) | Coal chemical industry mixed emergency power supply system | |
| CN205016990U (en) | Electrical shutoff control system | |
| CN109193913A (en) | A kind of energy-storage battery based on thermal power plant's AGC frequency modulation makees the spare system of station service |
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 | ||
| CB02 | Change of applicant information |
Address after: 100039 room 901, 9 / F, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Applicant after: Guoneng Longyuan environmental protection Co.,Ltd. Address before: 100039 room 911, 1 building, 16 West Fourth Ring Road, Haidian District, Beijing. Applicant before: BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENGINEERING Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201229 |
|
| RJ01 | Rejection of invention patent application after publication |