CN215674743U - Mixed filling system applied to liquid hydrogen filling station - Google Patents
Mixed filling system applied to liquid hydrogen filling station Download PDFInfo
- Publication number
- CN215674743U CN215674743U CN202121509503.3U CN202121509503U CN215674743U CN 215674743 U CN215674743 U CN 215674743U CN 202121509503 U CN202121509503 U CN 202121509503U CN 215674743 U CN215674743 U CN 215674743U
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- module
- liquid
- filling
- conveying pipeline
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Abstract
The utility model relates to the technical field of hydrogenation stations, in particular to a mixed filling system applied to a liquid hydrogen filling station, which comprises a liquid hydrogen storage tank, wherein the liquid hydrogen storage tank is connected with a transfer storage tank through a liquid hydrogen conveying pipeline, the transfer storage tank is provided with a pressure adjusting module, the transfer storage tank is connected with a filling port through a liquid hydrogen conveying pipeline, the transfer storage tank is connected with a liquid hydrogen vaporization module through a liquid hydrogen conveying pipeline, the liquid hydrogen vaporization module is connected with a low-temperature hydrogen filling module through a hydrogen conveying pipeline, the liquid hydrogen vaporization module is also connected with a normal-temperature hydrogen filling module through a hydrogen conveying pipeline, high-pressure liquid hydrogen stored in the hydrogenation station can be converted into hydrogen in various forms required by hydrogen energy automobiles through the steps, so that the hydrogen filling mode of the hydrogenation station can be increased, and hydrogen filling can be carried out on various hydrogen energy automobiles, therefore, the hydrogen station can be prevented from blocking the development of the hydrogen energy automobile, and the practicability of the hydrogen station is better.
Description
Technical Field
The utility model relates to the technical field of hydrogenation stations, in particular to a mixed filling system applied to a liquid hydrogen hydrogenation station.
Background
Hydrogen is the lightest known gas at present, and is gaseous at normal temperature, and hydrogen can burn, still can give off a large amount of heat energy simultaneously, and hydrogen can not produce polluting gas when burning, therefore, current hydrogen begins to become the main energy supply source of new energy automobile gradually.
The hydrogen filling station is a fuel station for supplying hydrogen to a fuel cell automobile, the existing hydrogen filling station mainly stores low-temperature high-pressure liquid hydrogen, when the hydrogen energy automobile needs to be filled with hydrogen, the hydrogen filling station mainly adopts low-temperature hydrogen or normal-temperature hydrogen to supply hydrogen to the hydrogen energy automobile, but along with the development of social science and technology, the existing hydrogen energy automobile can directly fill low-pressure liquid hydrogen or low-temperature or normal-temperature hydrogen with different pressures according to the demand, but the existing hydrogen filling station is single in hydrogen adding mode and cannot meet the hydrogen filling mode of the existing hydrogen energy automobile, and therefore the existing single hydrogen filling mode can possibly obstruct the development of the hydrogen energy automobile.
Therefore, the utility model is necessarily applied to the mixed filling system of the liquid hydrogen filling station.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a mixed filling system applied to a liquid hydrogen filling station, which is used for filling and supplementing hydrogen to a hydrogen energy automobile according to the hydrogen in the state required by the hydrogen energy automobile by setting hydrogen filling modes in different states, so as to solve the problem that the existing hydrogen filling station has a single hydrogen filling mode and cannot meet the hydrogen filling mode of the existing hydrogen energy automobile, so that the existing single hydrogen filling mode can possibly obstruct the development of the hydrogen energy automobile.
In order to achieve the above purpose, the utility model provides the following technical scheme: a mixed filling system applied to a liquid hydrogen filling station comprises a liquid hydrogen storage tank, wherein the liquid hydrogen storage tank is connected with a transfer storage tank through a liquid hydrogen conveying pipeline, the transfer storage tank is provided with a pressure adjusting module and is connected with a filling port through the liquid hydrogen conveying pipeline, the transfer storage tank is connected with a liquid hydrogen vaporization module through the liquid hydrogen conveying pipeline, the liquid hydrogen vaporization module is connected with a low-temperature hydrogen filling module through the hydrogen conveying pipeline, the liquid hydrogen vaporization module is also connected with a normal-temperature hydrogen filling module through the hydrogen conveying pipeline, the low-temperature hydrogen filling module is connected with the filling port through the hydrogen conveying pipeline, the normal-temperature hydrogen filling module is connected with a precooling module through the hydrogen conveying pipeline, the precooling module is connected with the filling port through the hydrogen conveying pipeline, and the liquid hydrogen vaporization module is connected with a hydrogen pressurizing module through the liquid hydrogen conveying pipeline, the hydrogen pressurizing module is connected with the low-temperature hydrogen filling module through a hydrogen conveying pipeline, and the hydrogen pressurizing module is connected with the normal-temperature hydrogen filling module through a hydrogen conveying pipeline.
Preferably, the pressure regulating module is a pressure regulator, and the pressure regulating module may also be a pressure regulating valve.
Preferably, the liquid hydrogen vaporization module is a liquid vaporizer.
Preferably, the hydrogen pressurizing module is a compressor for hydrogen.
Preferably, the normal-temperature hydrogen filling module comprises a heat exchange module a, the normal-temperature hydrogen filling module further comprises a heat exchange medium storage module, the heat exchange module a is connected with the heat exchange medium storage module through a pipeline, the precooling module comprises a heat exchange module B, and the heat exchange module B is connected with the heat exchange medium storage module through a pipeline.
Preferably, the heat exchange module a is a gas-liquid heat exchange tank, the heat exchange module B is also a gas-liquid heat exchange tank, the heat exchange module a and the heat exchange module B have the same structural size, the heat exchange medium storage module is a water cooling tank, and the heat exchange medium is liquid water.
Preferably, the filling port is a hydrogen filling gun, and the hydrogen filling gun can fill liquid hydrogen and hydrogen.
The utility model has the beneficial effects that:
according to the utility model, the high-pressure liquid hydrogen stored in the hydrogenation station can be converted into hydrogen in various forms required by hydrogen energy automobiles through the steps, so that the hydrogen filling mode of the hydrogenation station can be increased, and various hydrogen energy automobiles can fill the hydrogen, thereby preventing the hydrogen station from hindering the development of the hydrogen energy automobiles and ensuring that the practicability of the hydrogen station is better.
Drawings
FIG. 1 is a schematic view of the overall structure of the technical solution of the present invention;
FIG. 2 is a schematic structural diagram of a pressure regulating module according to the present invention;
FIG. 3 is a schematic structural diagram of a normal-temperature hydrogen filling module according to the present invention;
fig. 4 is a schematic structural diagram of a pre-cooling module according to the present invention.
In the figure: 1. a liquid hydrogen storage tank; 2. a transfer storage tank; 3. a liquid hydrogen vaporization module; 4. a pressure regulation module; 4-1, a pressure regulator; 4-2, a pressure regulating valve; 5. a hydrogen pressurization module; 6. a low-temperature hydrogen filling module; 7. a filling port; 8. a normal temperature hydrogen filling module; 8-1, a heat exchange module A; 8-2, a heat exchange medium storage module; 9. a pre-cooling module; 9-1 heat exchange module B.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Referring to the attached drawings 1-4, the mixed filling system applied to the liquid hydrogen filling station provided by the utility model comprises a liquid hydrogen storage tank 1, wherein the arranged liquid hydrogen storage tank 1 is a container for storing high-pressure liquid hydrogen in the hydrogen filling station, the liquid hydrogen storage tank 1 is connected with a transfer storage tank 2 through a liquid hydrogen conveying pipeline, a plurality of groups of liquid hydrogen conveying pipelines are arranged on the transfer storage tank 2, so that the liquid hydrogen can be conveyed into corresponding devices according to the filled hydrogen state, a pressure adjusting module 4 is arranged on the transfer storage tank 2, the arranged pressure adjusting module 4 is used for converting the high-pressure liquid hydrogen in the transfer storage tank 2 into low-pressure liquid hydrogen, so that the low-pressure liquid hydrogen can be directly conveyed into a liquid hydrogen storage device on a hydrogen energy source automobile to be filled through a liquid hydrogen filling gun, the transfer storage tank 2 is connected with a filling port 7 through the liquid hydrogen conveying pipeline, the transfer storage tank 2 is connected with a liquid hydrogen vaporization module 3 through a liquid hydrogen conveying pipeline, the arranged liquid hydrogen vaporization module 3 can vaporize low-pressure liquid hydrogen into low-pressure gaseous hydrogen, so that the low-pressure gaseous hydrogen can be conveniently injected into a hydrogen energy automobile using the gaseous hydrogen, the liquid hydrogen vaporization module 3 is connected with a low-temperature hydrogen injection module 6 through a hydrogen conveying pipeline, the arranged low-temperature hydrogen injection module 6 is an air delivery pump and can directly convey the low-temperature hydrogen to a filling port 7 for injecting the low-temperature hydrogen, the liquid hydrogen vaporization module 3 is also connected with a normal-temperature hydrogen injection module 8 through a hydrogen conveying pipeline, the arranged normal-temperature hydrogen injection module 8 is used for changing the low-temperature hydrogen into the normal-temperature hydrogen through heat exchange, the low-temperature hydrogen injection module 6 is connected with the filling port 7 through the hydrogen conveying pipeline, and the normal-temperature hydrogen injection module 8 is connected with a pre-cooling module 9 through the hydrogen conveying pipeline, because the temperature of hydrogen is necessarily less than 20 ℃ when hydrogen is filled, the pre-cooling module 9 is arranged for cooling normal-temperature hydrogen in advance before filling, the temperature of the filled normal-temperature hydrogen is prevented from being higher than 20 ℃, the pre-cooling module 9 is connected with a filling port 7 through a hydrogen conveying pipeline, the liquid hydrogen vaporization module 3 is connected with a hydrogen pressurizing module 5 through a liquid hydrogen conveying pipeline, the hydrogen pressurizing module 5 is arranged for pressurizing the filled high-pressure hydrogen according to the requirement of a hydrogen energy automobile, the hydrogen pressurizing module 5 is connected with the low-temperature hydrogen filling module 6 through a hydrogen conveying pipeline, and the hydrogen pressurizing module 5 is connected with the normal-temperature hydrogen filling module 8 through a hydrogen conveying pipeline.
Further, the pressure regulating module 4 is a pressure regulator 4-1, the pressure regulating module 4 can also be a pressure regulating valve 4-2, the model of the pressure regulator 4-1 is UR11, and the model of the pressure regulating valve 4-2 is ZDR low-temperature hydrogen filling module 6DPZDR10 DB;
further, the liquid hydrogen vaporization module 3 is a liquid vaporizer, and the type of the arranged liquid vaporizer is 2 low-temperature hydrogen filling module 6-hydrogen pressurizing module 5 liquid hydrogen vaporizer;
further, the hydrogen pressurizing module 5 is a compressor for hydrogen, and the model of the compressor is QWZ air compressor;
further, the normal-temperature hydrogen filling module 8 comprises a heat exchange module A8-1, the normal-temperature hydrogen filling module 8 further comprises a heat exchange medium storage module 8-2, the heat exchange module A8-1 is connected with the heat exchange medium storage module 8-2 through a pipeline, the precooling module 9 comprises a heat exchange module B9-1, and the heat exchange module B9-1 is connected with the heat exchange medium storage module 8-2 through a pipeline;
further, the heat exchange module A8-1 is a gas-liquid heat exchange tank, the heat exchange module A8-1 is arranged to convert low-temperature gaseous hydrogen into normal-temperature gaseous hydrogen through a heat exchange mode, the heat exchange module B9-1 is also a gas-liquid heat exchange tank, the heat exchange module B9-1 is arranged to pre-cool the normal-temperature gaseous hydrogen in advance before filling the normal-temperature gaseous hydrogen, the temperature of the normal-temperature gaseous hydrogen before filling is prevented from being higher than 20 ℃, after a heat exchange medium enters the heat exchange module A8-1 to exchange heat with the low-temperature gaseous hydrogen, the temperature of the heat exchange medium is reduced, the heat exchange medium after cooling can flow into the heat exchange medium storage module 8-2 through a pipeline to preheat the normal-temperature gaseous hydrogen, so that the cold energy carried by the low-temperature gaseous hydrogen can be efficiently utilized, the working power consumption of the water cooling tank can be reduced, the heat exchange module A8-1 and the heat exchange module B9-1 are identical in structure size, the heat exchange medium storage module 8-2 is a water cooling tank, and the heat exchange medium is liquid water;
further, the filling port 7 is a hydrogen filling gun, and the hydrogen filling gun can fill liquid hydrogen and hydrogen;
the using process of the utility model is as follows: firstly, a hydrogen energy automobile can fill hydrogen to a special filling port 7 according to the hydrogen, a filling switch on the filling port 7 is started, when the hydrogen energy automobile needs low-pressure liquid hydrogen, the high-pressure liquid hydrogen stored in a transfer storage tank 1 flows into a transfer storage tank 2 through a hydrogen conveying pipeline, a pressure adjusting module 4 arranged on the transfer storage tank 2 can reduce the pressure of the high-pressure liquid hydrogen through a pressure regulator 4-1 or a pressure adjusting valve 4-2, the liquid hydrogen after pressure reduction can be conveyed to the filling port 7 through the liquid hydrogen conveying pipeline, and the filling port 7 is used for filling the hydrogen energy automobile;
when the hydrogen energy automobile needs gaseous hydrogen, the high-pressure liquid hydrogen stored in the storage tank 1 flows into the storage tank 2 through the hydrogen conveying pipeline according to the temperature of the hydrogen needed by the hydrogen energy automobile, the pressure regulating module 4 arranged on the storage tank 2 can reduce the pressure of the high-pressure liquid hydrogen through the pressure regulator 4-1 or the pressure regulating valve 4-2, the liquid hydrogen after pressure reduction flows into the liquid hydrogen vaporization module 3 through the liquid hydrogen conveying pipeline, the liquid hydrogen vaporization module 3 can vaporize the liquid hydrogen to convert the liquid hydrogen into gaseous hydrogen, the converted gaseous hydrogen is low-temperature hydrogen, if the hydrogen energy automobile is just the low-temperature hydrogen, the low-temperature hydrogen filling module 6 can directly convey the low-temperature gaseous hydrogen to the filling port 7, and the low-temperature gaseous hydrogen can be filled into the hydrogen energy automobile through the filling port 7, if the hydrogen energy automobile needs normal-temperature gaseous hydrogen, the low-temperature gaseous hydrogen vaporized by the liquid hydrogen vaporization module 3 can be conveyed to the heat exchange module A8-1 through a gaseous hydrogen conveying pipeline, the heat exchange module A8-1 can increase the temperature of the low-temperature gaseous hydrogen to the normal-temperature gaseous hydrogen in a heat exchange mode, the normal-temperature gaseous hydrogen also needs to enter the heat exchange module B9-1 for precooling before filling, and the precooled normal-temperature gaseous hydrogen can fill the hydrogen energy automobile through the filling port 7;
if the hydrogen energy automobile needs high-pressure gaseous hydrogen, the gaseous hydrogen vaporized by the liquid hydrogen vaporization module 3 needs to be conveyed into the hydrogen pressurization module 5 through a gaseous hydrogen conveying pipeline, the hydrogen pressurization module 5 can pressurize the gaseous hydrogen to convert the gaseous hydrogen into low-temperature high-pressure gaseous hydrogen, and the gaseous hydrogen is filled in the step of filling the gaseous hydrogen.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.
Claims (7)
1. Be applied to mixed filling system at liquid hydrogen hydrogenation station, including liquid hydrogen holding vessel (1), its characterized in that: the liquid hydrogen storage tank (1) is connected with a transfer storage tank (2) through a liquid hydrogen conveying pipeline, a pressure adjusting module (4) is arranged on the transfer storage tank (2), the transfer storage tank (2) is connected with a filling port (7) through a liquid hydrogen conveying pipeline, the transfer storage tank (2) is connected with a liquid hydrogen vaporization module (3) through a liquid hydrogen conveying pipeline, the liquid hydrogen vaporization module (3) is connected with a low-temperature hydrogen filling module (6) through a hydrogen conveying pipeline, the liquid hydrogen vaporization module (3) is also connected with a normal-temperature hydrogen filling module (8) through a hydrogen conveying pipeline, the low-temperature hydrogen filling module (6) is connected with the filling port (7) through a hydrogen conveying pipeline, the normal-temperature hydrogen filling module (8) is connected with a precooling module (9) through a hydrogen conveying pipeline, the precooling module (9) is connected with the filling port (7) through a hydrogen conveying pipeline, liquid hydrogen vaporization module (3) is connected with hydrogen pressurization module (5) through liquid hydrogen pipeline, hydrogen pressurization module (5) are connected with low temperature hydrogen filling module (6) through hydrogen pipeline, hydrogen pressurization module (5) are connected with normal atmospheric temperature hydrogen filling module (8) through hydrogen pipeline.
2. The hybrid refueling system as set forth in claim 1, wherein: the pressure adjusting module (4) is a pressure regulator (4-1), and the pressure adjusting module (4) can also be a pressure adjusting valve (4-2).
3. The hybrid refueling system as set forth in claim 1, wherein: the liquid hydrogen vaporization module (3) is a liquid vaporizer.
4. The hybrid refueling system as set forth in claim 1, wherein: the hydrogen pressurizing module (5) is a compressor for hydrogen.
5. The hybrid refueling system as set forth in claim 1, wherein: normal atmospheric temperature hydrogen filling module (8) is including heat transfer module A (8-1), normal atmospheric temperature hydrogen filling module (8) still includes heat transfer medium storage module (8-2), pass through the pipe connection between heat transfer module A (8-1) and the heat transfer medium storage module (8-2), precooling module (9) is including heat transfer module B (9-1), heat transfer module B (9-1) is connected with heat transfer medium storage module (8-2) through the pipeline.
6. The hybrid refueling system as set forth in claim 5, wherein: the heat exchange module A (8-1) is a gas-liquid heat exchange tank, the heat exchange module B (9-1) is also a gas-liquid heat exchange tank, the heat exchange module A (8-1) and the heat exchange module B (9-1) are identical in structure and size, the heat exchange medium storage module (8-2) is a water cooling tank, and the heat exchange medium is liquid water.
7. The hybrid refueling system as set forth in claim 1, wherein: the filling port (7) is a hydrogen filling gun which can be filled with liquid hydrogen and hydrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121509503.3U CN215674743U (en) | 2021-07-05 | 2021-07-05 | Mixed filling system applied to liquid hydrogen filling station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121509503.3U CN215674743U (en) | 2021-07-05 | 2021-07-05 | Mixed filling system applied to liquid hydrogen filling station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215674743U true CN215674743U (en) | 2022-01-28 |
Family
ID=79978495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121509503.3U Active CN215674743U (en) | 2021-07-05 | 2021-07-05 | Mixed filling system applied to liquid hydrogen filling station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215674743U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114688445A (en) * | 2022-04-25 | 2022-07-01 | 液空厚普氢能源装备有限公司 | Gas hydrogen liquid hydrogen hydrogenation station |
| CN116357884A (en) * | 2023-02-13 | 2023-06-30 | 苏州新锐低温设备有限公司 | Control system and method for liquid hydrogen safety gasifier |
-
2021
- 2021-07-05 CN CN202121509503.3U patent/CN215674743U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114688445A (en) * | 2022-04-25 | 2022-07-01 | 液空厚普氢能源装备有限公司 | Gas hydrogen liquid hydrogen hydrogenation station |
| CN114688445B (en) * | 2022-04-25 | 2023-10-27 | 液空厚普氢能源装备有限公司 | Hydrogen liquid hydrogen hydrogenation station |
| CN116357884A (en) * | 2023-02-13 | 2023-06-30 | 苏州新锐低温设备有限公司 | Control system and method for liquid hydrogen safety gasifier |
| CN116357884B (en) * | 2023-02-13 | 2023-12-29 | 苏州新锐低温设备有限公司 | Control system and method for liquid hydrogen safety gasifier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108561749B (en) | Mixed filling system applied to liquid hydrogen hydrogenation station | |
| WO2022135109A1 (en) | Liquid hydrogen storage type hydrogenation apparatus capable of pre-cooling by liquid hydrogen | |
| CN215674743U (en) | Mixed filling system applied to liquid hydrogen filling station | |
| CN109708000B (en) | L-CH2 type hydrogen station heat management system | |
| US8950195B2 (en) | Continuous flow thermodynamic pump | |
| CN113483259B (en) | Mixed filling system of liquid hydrogen storage type hydrogen filling station | |
| US10704735B2 (en) | Method and device for replenishing a supply of cryogenic liquid, notably of liquefied natural gas | |
| CN112483887A (en) | Buried liquid hydrogen storage type hydrogenation device | |
| CN202158352U (en) | L-CNG (liquefied-compressed natural gas) dual-gas resource gas supply device | |
| CN211315766U (en) | Hydrogen filling system | |
| CN214249133U (en) | Liquid hydrogen storage type hydrogenation device adopting liquid hydrogen precooling | |
| CN111256028A (en) | Hydrogen filling system | |
| CN110594579B (en) | Multifunctional hydrogen refueling station hydrogen fuel refueling system | |
| CN208397688U (en) | Mixing loading system applied to liquid hydrogen hydrogenation stations | |
| CN112344207B (en) | Liquid hydrogen and high-pressure gas hydrogen combined hydrogenation system based on injection mixed pressure | |
| CN111928109A (en) | Boil-off gas recovery system of hydrogenation station | |
| CN105135208A (en) | Compression recycling method for evaporation gas of liquefied natural gas | |
| CN112128609A (en) | Novel hydrogenation precooling system | |
| CN110914586A (en) | Method for transferring a cryogenic fluid and transfer system for implementing such a method | |
| CN214249132U (en) | Buried liquid hydrogen storage type hydrogenation device | |
| CN108953988B (en) | Liquid hydrogen vaporization and self-pressurization device | |
| CN210107039U (en) | Liquid hydrogen stores up hydrogen type high pressure hydrogenation car | |
| CN218599448U (en) | Mixed filling system for hydrogenation station | |
| CN115468109B (en) | Novel pump-heat collaborative pressurizing liquid hydrogen hydrogenation station system and application method thereof | |
| CN115419822A (en) | Liquid hydrogen storage and transportation type hydrogen filling system for hydrogen refueling station by using cold energy generated by para-ortho hydrogen conversion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |