CN109506127A - Horizontal heat pipe liquefied natural gas gasifying device - Google Patents
Horizontal heat pipe liquefied natural gas gasifying device Download PDFInfo
- Publication number
- CN109506127A CN109506127A CN201811570961.0A CN201811570961A CN109506127A CN 109506127 A CN109506127 A CN 109506127A CN 201811570961 A CN201811570961 A CN 201811570961A CN 109506127 A CN109506127 A CN 109506127A
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- heat
- tube
- inner tube
- pipe
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
- F17C7/02—Discharging liquefied gases
- F17C7/04—Discharging liquefied gases with change of state, e.g. vaporisation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
- F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0302—Heat exchange with the fluid by heating
- F17C2227/0309—Heat exchange with the fluid by heating using another fluid
- F17C2227/0316—Water heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention belongs to LNG Technology fields, specially horizontal heat pipe liquefied natural gas gasifying device, it is poor for the heat exchange of existing natural gas gasifying device, frosting is seriously proposed, it mainly includes hollow shell, circulating water intake and circulating water outlet are offered respectively on the left and right ends of hollow shell, dividing plate is equipped with inside hollow shell, circulating water intake is divided transversely into plurality of passages to circulating water outlet direction by dividing plate, heat exchanger tube is equipped in every channel, heat exchanger tube includes heat exchange outer tube and heat exchange inner tube, heat exchange outer tube is straight tube, heat exchange inner tube is set in heat exchange outer tube and bias is arranged by top, intermediate medium is also marked in heat exchange outer tube, intermediate medium is located at the lower section of heat exchange inner tube, and both intermediate medium and heat exchange inner tube are not in contact, the both ends of heat exchange inner tube respectively collect import collecting box pipe and outlet Case Guan Liantong.The present invention has structure simple, and heat exchange efficiency is high, can avoid the generation of frosting problem when heat exchange.
Description
Technical field:
The invention belongs to LNG Technology fields, and in particular to horizontal heat pipe liquefied natural gas gasifying device.
Background technique:
Natural gas is green, environment-friendly type the energy recognized in the world, and natural gas is usually liquid, i.e. liquid day
Right gas (LNG), gasifies before use, i.e. gasification natural gas (NG).Currently, large and medium-sized gasification installation substantially has three
Kind: open-frame type gasifier, intermediate medium gasifier, immersion gasifier, but since its structure is complicated, or by environment temperature
It influences seriously, investment is huge, is difficult to be widely applied and minimize；And existing small evaporator device mainly has air temperature type gasification
Device, electrical heating type gasifier, steam heating type gasifier etc..Currently on the market mainly based on air temperature type vaporizer, still,
It has that frost is serious.Existing number of patent application is 201710253818.8, and patent name is a kind of radial heat
Tubular type liquified natural gas vaporizer, the patent application document use the heat exchanger tube of Nested design, and by the heat exchange in heat exchanger tube
Pipe outer tube and heat exchanger tube inner tube use eccentric setting, to avoid the problem that frosting, but since heat exchanger tube is integrally to be immersed in heat
In the water of source, there is a problem of that heat exchange efficiency is not high again.
Summary of the invention:
The present invention is to overcome drawbacks described above, provides a kind of horizontal heat pipe liquefied natural gas gasifying device, the gasifier is not only
The problem of avoiding frosting, while further improving the heat exchange efficiency of gasifier.
The technical solution adopted by the present invention is: a kind of horizontal heat pipe liquefied natural gas gasifying device, including hollow shell, into
Mouth collecting box pipe and outlet header pipe, import collecting box pipe and outlet header pipe are located in the front and rear sides of hollow shell, in sky
Offer circulating water intake and circulating water outlet respectively on the left and right ends of heart shell, inside hollow shell be equipped with layering every
Circulating water intake is divided transversely into plurality of passages to circulating water outlet direction by plate, the dividing plate, in every channel
Equipped with heat exchanger tube, the heat exchanger tube includes heat exchange outer tube and heat exchange inner tube, and the heat exchange outer tube is straight tube, and the heat exchange inner tube is inclined
The heart is set in heat exchange outer tube by top, and the both ends for the outer tube that exchanges heat are fixed in heat exchange inner tube, makes to exchange heat in outer tube and heat exchange
Confined space is formed between pipe, and intermediate medium is filled in confined space, the intermediate medium is located at the lower section of heat exchange inner tube,
And both intermediate medium and heat exchange inner tube are not in contact, the both ends of the heat exchange inner tube are respectively by import collecting box pipe and outlet header
Pipe connection.
Preferably, each heat exchanger tube passes through the centre that support plate is fixed on every layer of channel, and support plate will be above and below channel
It is separated into enclosure space and water circulation channel, the enclosure space is located at the upper surface of water circulation channel, and the lower portion of heat exchanger tube
In in water circulation channel.
Preferably, more than two heat exchanger tubes are arranged side by side for every layer, and the heat exchange inner tube per two adjacent heat exchanger tubes is logical
Connecting bend is crossed to join end to end to form curved snakelike pipeline.
Preferably, the intermediate medium is the conduction material that can be realized gaseous state and liquid by the temperature difference and mutually convert.
Preferably, import connecting flange and outlet connecting flange are respectively equipped on import collecting box pipe and outlet header pipe.
The beneficial effects of the present invention are:
1, the present invention is whole uses horizontal arrangement, to reduce the height of integral device, make the installation of equipment, operation,
Maintenance becomes simpler, conveniently.
2, the present invention devises a kind of structure of leveled heating in hollow shell, will be in hollow shell by dividing plate
It is divided into a plurality of access from circulating water intake direction to circulating water outlet direction, is formed between recycling support plate and dividing plate
Water circulation channel makes circulating water intake in the case where same cross-sectional area, and circulation area reduces nearly half, and flow velocity significantly mentions
Height to improve the coefficient of heat transfer, while significantly improving heat exchange efficiency.
3, the heat exchange inner tube for being loaded with liquified natural gas is nested in heat exchange outer tube by the present invention, by positioned at heat exchange outer tube
Interior intermediate medium is heated, and then liquified natural gas is made to be converted into gaseous natural gas, and the structure is simple, and heat-transfer capability is high,
The problem of also avoiding frosting when heat exchange.
Detailed description of the invention:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the cross-sectional view of A-A in Fig. 2；
Wherein: 1 hollow shell, 11 circulating water intakes, 12 circulating water outlets, 13 dividing plates, 14 support plates, 2 inlet headers
Case pipe, 21 import connecting flanges, 3 outlet header pipes, 31 outlet connecting flanges, 4 heat exchange outer tubes, 5 heat exchange inner tubes, 6 intermediate mediums,
7 connecting bends, 8 natural gases.
Specific embodiment:
As shown in Figure 1 to Figure 3, the present invention be a kind of horizontal heat pipe liquefied natural gas gasifying device, including hollow shell 1, into
Mouth collecting box pipe 2 and outlet header pipe 3, the hollow shell 1 use horizontal type structure, the import collecting box pipe 2 and outlet header pipe 3
It is located in the front and rear sides of hollow shell 1, the import collecting box pipe 2 is connected with the device of storage liquified natural gas, described
Outlet header pipe 3 is connected with the device of storage gaseous natural gas.
Circulating water intake 11 and circulating water outlet 12 are offered respectively in the left and right sides end of hollow shell 1, it is described to follow
Ring water inlet 11 and circulating water outlet 12 are connected to heat source water respectively, form hot water cyclesystem.It is equipped with inside hollow shell 1
Circulating water intake 11 is divided transversely into plurality of passages to 12 direction of circulating water outlet by dividing plate 13, the dividing plate 13,
The heat exchanger tube that liquified natural gas is converted into gaseous natural gas is equipped in every channel, the heat exchanger tube is tubular structure,
Heat exchanger tube one end of every layer of setting is connected to import collecting box pipe 2, and the other end is connected to outlet header pipe 3.
The heat exchanger tube includes heat exchange outer tube 4 and heat exchange inner tube 5, and what the heat exchange inner tube 5 was selected is Cryo Heat Tube, described
Heat exchange outer tube 4 is straight tube, and the both ends of every heat exchange outer tube 4 are sealed by end socket respectively, equal in each 4 inside of heat exchange outer tube
The both ends for being arranged with a heat exchange inner tube 5, and exchanging heat in outer tube 4 are stretched out from the end of heat exchange outer tube 4, make to exchange heat outer tube 4 with
Confined space is formed between heat exchange inner tube 5, the intermediate medium 6 of appropriate liquid is filled in confined space, and intermediate medium 6 is located at
The lower section of heat exchange inner tube 5, and intermediate medium 6 is not in contact with 5 the two of heat exchange inner tube.The heat exchange inner tube 5 is eccentrically set on
On the one hand the top of heat exchange outer tube 4 can increase heating surface area by eccentric setting, on the other hand reduce heat exchange area, avoid
A possibility that heat exchange pipe surface frosting.
In order to improve heat exchange efficiency, every layer is arranged side by side more than two heat exchanger tubes, and per two adjacent heat exchanger tubes
Heat exchange inner tube 5 joins end to end to form curved snakelike pipeline by connecting bend 7.In order to facilitate the installation and operation of equipment, institute
It states connecting bend 7 and is mounted on 1 outside of hollow shell.
Each heat exchanger tube of every layer of setting passes through support plate 14 and is horizontally fixed in channel, and the support plate 14 is located at every
On the two sidewalls of root heat exchange 4 long side of outer tube, support plate 14 is made to be divided into two parts up and down.Support plate 14 is not only that heat exchange outer tube 4 exists
Enclosure space is formed between the dividing plate 13 that support is provided in structure, and keeps the top of support plate 14 adjacent with upper layer, is made
Form water circulation channel between the dividing plate 13 adjacent with lower layer of the lower section of support plate 14, and every layer of channel inner sealing space
The height ratio of height and water circulation channel is 1:1.With this configuration, in the case where same cross-sectional area, circulation area can be made
Half is reduced, increases substantially flow velocity, to improve the coefficient of heat transfer, hence it is evident that improve heat transfer effect, be specifically detailed in following table.
And the lower part for the outer tube 4 that exchanges heat is located in water circulation channel, can realize and come into full contact with heat source water, realize heat source water
The successively purpose that the intermediate medium 6 in exchange heat pipe is heated.Additionally due to the top of heat exchange outer tube 4 is located at enclosure space
It is interior, it is not in contact with heat source water, i.e., heat exchange inner tube 5 is still in relative low temperature state, after intermediate medium 6 is heated, heat exchange inner tube 5
It is larger with the temperature difference of both intermediate mediums 6 after gasification, the intermediate medium 6 after making gasification and the heat exchange between heat exchange inner tube 5
Speed is fast.
The intermediate medium 6 is the conduction material that can be realized gaseous state and liquid by the temperature difference and mutually convert, intermediate medium 6
Effect is primarily used to back and forth transmit heat, such as intermediate medium 6 can be using ammonia, freon -21 (CHCI2F) etc..
The import connecting flange for being used to be attached with the device of storage liquified natural gas is equipped on import collecting box pipe 2
21, the outlet connecting flange 31 for being used to be attached with the device of storage gaseous natural gas is equipped on outlet header pipe 3
The course of work:
The horizontal heat pipe liquefied natural gas gasifying device of the application when in use, according to the difference of medium, is divided into two circulations
Structure:
First is water circulation structure:
The recirculated water of higher temperature enters in air cabinet 1 from circulating water intake 11 in heat source water, and circulating water flow is through supporting
The every layer of circulating water channel formed between plate 14 and dividing plate 13, and flowed out through circulating water outlet 12.
Second is the loop structure of liquefied natural gas:
Liquefied natural gas is by entering heat exchange inner tube 5, during this, higher temperatures from import collecting box pipe 2 through import connecting flange 21
The lower part of the recirculated water heat exchanging outer tube 4 of degree is heated, and intermediate medium 6 is transferred heat to, and intermediate medium 6 absorbs accordingly
Gasification latent heat evaporation, is evaporated to the outer wall of heat exchange inner tube 5, exchanges heat with the natural gas 8 in heat exchange inner tube 5, and it is latent to release gasification
Heat is condensed into liquid, flow back into the lower part in heat exchange outer tube 4, repeatedly；And the liquid natural gas in heat exchange inner tube 5 absorbs
Gasified after heat as natural gas, and is flowed out through outlet header pipe 3 from outlet connecting flange 31.
The foregoing is only a preferred embodiment of the present invention, these specific embodiments are all based on the present invention
Different implementations under general idea, and scope of protection of the present invention is not limited thereto, it is any to be familiar with the art
Technical staff in the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, should all cover of the invention
Within protection scope.Therefore, the scope of protection of the invention shall be subject to the scope of protection specified in the patent claim.
Claims (5)
1. a kind of horizontal heat pipe liquefied natural gas gasifying device, including hollow shell (1), import collecting box pipe (2) and outlet header pipe
(3), import collecting box pipe (2) and outlet header pipe (3) are located in the front and rear sides of hollow shell (1), in hollow shell (1)
Left and right ends on offer circulating water intake (11) and circulating water outlet (12) respectively, it is characterised in that: in hollow shell (1)
Inside is equipped with dividing plate (13), and the dividing plate (13) is lateral to circulating water outlet (12) direction by circulating water intake (11)
Plurality of passages are separated into, heat exchanger tube is equipped in every channel, the heat exchanger tube includes heat exchange outer tube (4) and heat exchange inner tube
(5), the heat exchange outer tube (4) is straight tube, and the heat exchange inner tube (5) is eccentric to be set in heat exchange outer tube (4) by top, and is exchanged heat
The both ends of outer tube (4) are fixed on heat exchange inner tube (5), and making to exchange heat outer tube (4) forms confined space between heat exchange inner tube (5), and
Intermediate medium (6) are filled in confined space, the intermediate medium (6) is located at the lower section of heat exchange inner tube (5), and intermediate medium
(6) it is not in contact with heat exchange inner tube (5) the two, the both ends of the heat exchange inner tube (5) respectively collect import collecting box pipe (2) and outlet
Case pipe (3) connection.
2. a kind of horizontal heat pipe liquefied natural gas gasifying device as described in claim 1, it is characterised in that: each heat exchanger tube is logical
The centre that support plate (14) is fixed on every layer of channel is crossed, and channel is separated into enclosure space to support plate (14) up and down and water recycles
Channel, the enclosure space is located at the upper surface of water circulation channel, and the lower part of heat exchanger tube is located in water circulation channel.
3. a kind of horizontal heat pipe liquefied natural gas gasifying device as claimed in claim 2, it is characterised in that: every layer is arranged side by side two
A above heat exchanger tube, and the heat exchange inner tube (5) per two adjacent heat exchanger tubes joined end to end by connecting bend (7) to be formed it is curved
Bent snakelike pipeline.
4. a kind of horizontal heat pipe liquefied natural gas gasifying device a method according to any one of claims 1-3, it is characterised in that: the centre
Medium (6) is the conduction material that can be realized gaseous state and liquid by the temperature difference and mutually convert.
5. a kind of horizontal heat pipe liquefied natural gas gasifying device as claimed in claim 4, it is characterised in that: in import collecting box pipe
(2) and on outlet header pipe (3) import connecting flange (21) and outlet connecting flange (31) are respectively equipped with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811570961.0A CN109506127B (en) | 2018-12-21 | 2018-12-21 | Horizontal heat pipe liquefied natural gas gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811570961.0A CN109506127B (en) | 2018-12-21 | 2018-12-21 | Horizontal heat pipe liquefied natural gas gasifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109506127A true CN109506127A (en) | 2019-03-22 |
| CN109506127B CN109506127B (en) | 2020-10-30 |
Family
ID=65754203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811570961.0A Active CN109506127B (en) | 2018-12-21 | 2018-12-21 | Horizontal heat pipe liquefied natural gas gasifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109506127B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486620A (en) * | 2019-09-17 | 2019-11-22 | 山西平朔煤矸石发电有限责任公司 | A kind of gravity-flow ventilation air-bathing gasifier preventing frosting for winter |
| CN111336833A (en) * | 2020-02-19 | 2020-06-26 | 无锡特莱姆气体设备有限公司 | Novel flow direction type stable gasifier |
| CN113587695A (en) * | 2021-08-12 | 2021-11-02 | 浙江大学 | Radial heat transfer micro-channel heat pipe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006010141A (en) * | 2004-06-24 | 2006-01-12 | Atomu Kenchiku Kankyo Kogaku Kenkyusho:Kk | Double tube type heat pipe |
| CN2762045Y (en) * | 2004-10-09 | 2006-03-01 | 陈兴元 | Bipipe eccentric heat siphon pipe heat exchanger |
| CN106705710A (en) * | 2016-12-14 | 2017-05-24 | 北京神雾环境能源科技集团股份有限公司 | Heat exchanger |
| CN107014226A (en) * | 2017-04-18 | 2017-08-04 | 航天科工哈尔滨风华有限公司 | A kind of radial heat pipe formula liquified natural gas vaporizer |
| CN108895880A (en) * | 2018-08-23 | 2018-11-27 | 天津三电汽车空调有限公司 | A kind of flow dividing structure in automobile heat exchange unit header |
| CN110173904A (en) * | 2019-06-13 | 2019-08-27 | 无锡辉腾科技有限公司 | Heat pipe-type gasifier |
-
2018
- 2018-12-21 CN CN201811570961.0A patent/CN109506127B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006010141A (en) * | 2004-06-24 | 2006-01-12 | Atomu Kenchiku Kankyo Kogaku Kenkyusho:Kk | Double tube type heat pipe |
| CN2762045Y (en) * | 2004-10-09 | 2006-03-01 | 陈兴元 | Bipipe eccentric heat siphon pipe heat exchanger |
| CN106705710A (en) * | 2016-12-14 | 2017-05-24 | 北京神雾环境能源科技集团股份有限公司 | Heat exchanger |
| CN107014226A (en) * | 2017-04-18 | 2017-08-04 | 航天科工哈尔滨风华有限公司 | A kind of radial heat pipe formula liquified natural gas vaporizer |
| CN108895880A (en) * | 2018-08-23 | 2018-11-27 | 天津三电汽车空调有限公司 | A kind of flow dividing structure in automobile heat exchange unit header |
| CN110173904A (en) * | 2019-06-13 | 2019-08-27 | 无锡辉腾科技有限公司 | Heat pipe-type gasifier |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486620A (en) * | 2019-09-17 | 2019-11-22 | 山西平朔煤矸石发电有限责任公司 | A kind of gravity-flow ventilation air-bathing gasifier preventing frosting for winter |
| CN111336833A (en) * | 2020-02-19 | 2020-06-26 | 无锡特莱姆气体设备有限公司 | Novel flow direction type stable gasifier |
| CN113587695A (en) * | 2021-08-12 | 2021-11-02 | 浙江大学 | Radial heat transfer micro-channel heat pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109506127B (en) | 2020-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202328324U (en) | Shell-and-tube intermediate medium gasifier | |
| CN109506127A (en) | Horizontal heat pipe liquefied natural gas gasifying device | |
| CN101776401B (en) | Air-cooled steam condensing system with natural ventilation and direct water film evaporation | |
| CN104913674B (en) | A kind of constant difference heat pipe-type gas-liquid counter current heat-exchanger rig | |
| CN112728776B (en) | External particle heat absorber and solar power generation system | |
| CN107014226A (en) | A kind of radial heat pipe formula liquified natural gas vaporizer | |
| CN105674783B (en) | Utilize the jet-propelled LNG vaporization system of geothermal energy | |
| CN209801852U (en) | Vertical falling film absorber and second-class two-stage absorption heat pump | |
| CN109404078A (en) | A kind of low temperature underground heat organic Rankine cycle power generation system based on horizontal tube sprinkling falling-film evaporator | |
| CN207006903U (en) | condenser and heat energy utilization system | |
| CN205403249U (en) | Heat pump system | |
| CN210292446U (en) | Refrigeration cycle condenser using water as refrigerant | |
| CN105953476B (en) | Heat pipe falling liquid film generator for low level thermal drivers absorption refrigeration | |
| CN114322623A (en) | High-temperature multi-heat-exchange-tube compact phase-change heat exchange device | |
| CN209983006U (en) | Normal-pressure self-circulation air cooling device based on phase-change heat exchange | |
| CN107747831A (en) | A kind of stable type tubulation cooling device | |
| CN113446881A (en) | Heat pipe type high-pressure low-temperature liquid gasification heating process cold energy recovery device | |
| CN206648492U (en) | A kind of small end difference condenser | |
| CN203719489U (en) | Double-phase-change latent heat exchanger | |
| CN207214470U (en) | Antifreezing hot water heater device | |
| CN209557056U (en) | A kind of low temperature underground heat organic Rankine cycle power generation system | |
| CN209910206U (en) | Siphon type medium-low temperature unit | |
| CN110375442A (en) | A kind of high temperature solar cavate heat pipe central receiver | |
| CN210569355U (en) | Flat-plate type solar phase-change heat-storage evaporation type heat pump | |
| CN210570095U (en) | Air temperature type gasifier group |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |