CN112403011A - Molecular distillation uniform temperature preheating device - Google Patents
Molecular distillation uniform temperature preheating device Download PDFInfo
- Publication number
- CN112403011A CN112403011A CN202011431065.3A CN202011431065A CN112403011A CN 112403011 A CN112403011 A CN 112403011A CN 202011431065 A CN202011431065 A CN 202011431065A CN 112403011 A CN112403011 A CN 112403011A
- Authority
- CN
- China
- Prior art keywords
- pipe
- heat conduction
- heat
- pipes
- conduction pipes
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/12—Molecular distillation
Abstract
The invention relates to the technical field of molecular distillation, in particular to a molecular distillation uniform-temperature preheating device, which comprises: the first heat conduction pipe, the second heat conduction pipe, the flow guide pipe, the liquid inlet pipe, the liquid outlet pipe and the guide plate, the feed pipe is communicated with the heavy component buffer tank and the molecular distillation equipment, the first heat conduction pipe is annular and is multiple, the multiple heat conduction pipes are respectively embedded on the feed pipe, the cross section of the first heat conduction pipe is rectangular, so that the first heat conduction pipe is attached to the opposite pipe wall of the feed pipe, wherein the first heat conduction pipe is internally provided with a clapboard, a gap with the width of the first heat conduction pipe is arranged among the first heat conduction pipes, the clapboard is positioned at the upper end inside the first heat conduction pipe, the structure and the number of the second heat conduction pipes are the same as those of the first heat conduction pipes, the second heat conduction pipes are nested on the feeding pipe, the heat conduction medium is rotated and moved forwards through the first heat conduction pipe, the flow guide pipe, the second heat conduction pipe and the other flow guide pipe, so that the wall surface of the feeding pipe is fully heated.
Description
Technical Field
The invention relates to the technical field related to molecular distillation, in particular to a molecular distillation uniform-temperature preheating device.
Background
Molecular distillation is a relatively new liquid-liquid separation technique which has not been widely applied to industrial production. The general molecular distillation equipment mainly comprises a molecular evaporator, a degassing system, a feeding system, a heating system, a cooling vacuum system, a control system and the like.
Inlet pipe and heavy ends buffer tank are connected to molecular distillation equipment in using, for the energy saving, make heat energy cyclic utilization, exist among the prior art and can collect the heat of heavy ends buffer tank through heat-conducting medium, and utilize this heat to preheat the inlet pipe, but heat conduction simple structure in current mode, heat-conducting medium flows to the other end from the one end of inlet pipe, heat-conducting medium and the continuous heat transfer of inlet pipe at this in-process, it is high to lead to inlet pipe one end temperature, the other end temperature is low, both ends temperature is inhomogeneous, thereby be unfavorable for the heating to the intraductal liquid of inlet pipe, especially, heavy ends buffer tank and molecular distillation equipment are apart from under the state far away, it is very little to preheat the effect, treat the improvement.
Disclosure of Invention
The present invention has been made in view of the above problems, and an object of the present invention is to provide a molecular distillation soaking preheating device, which can achieve the above object by the following means.
Molecular distillation samming preheating device includes: the heat conduction pipe I, the heat conduction pipe II, the flow guide pipe, the liquid inlet pipe, the liquid outlet pipe and the drainage plate are arranged on the base;
the feed pipe is communicated with the heavy component buffer tank and the molecular distillation equipment, the first heat conduction pipes are annular and are multiple in number, the first heat conduction pipes are respectively embedded on the feed pipe, the cross sections of the first heat conduction pipes are rectangular, so that the first heat conduction pipes are attached to the opposite pipe walls of the feed pipe, partition plates are arranged inside the first heat conduction pipes, intervals of the width of the first heat conduction pipes are formed among the first heat conduction pipes, and the partition plates are located at the upper ends of the insides of the first heat conduction pipes;
the structure and the number of the second heat conduction pipes are the same as those of the first heat conduction pipes, the second heat conduction pipes are embedded in the feeding pipe and are respectively positioned between the first heat conduction pipes, the first heat conduction pipes are attached to the wall surfaces of the second heat conduction pipes, the adjacent first heat conduction pipes are communicated with the two horizontal ends of the second heat conduction pipes, and the partition plates in the second heat conduction pipes are positioned at the lower ends of the interiors of the second heat conduction pipes;
the first heat conduction pipe and the second heat conduction pipe are communicated and matched with each other, a drainage plate is arranged at the position adjacent to the communication position of the first heat conduction pipe and the second heat conduction pipe, the drainage plate is obliquely arranged, the feeding pipe is arranged along the center in a mirror image dividing mode, and the vertical inclination directions of the two adjacent drainage plates are opposite;
the number of the flow guide pipes is two, one flow guide pipe is horizontally arranged on the top surfaces of the first heat conduction pipes, the other flow guide pipe is horizontally arranged on the bottom surfaces of the second heat conduction pipes, a plurality of drainage channels are arranged in the flow guide pipes and communicated with the adjacent first heat conduction pipes, the plurality of drainage channels are arranged in a head-to-tail staggered mode and communicated with the first heat conduction pipes, and the communication mode of the second heat conduction pipes and the drainage channels of the other flow guide pipe is the same as the communication mode of the first heat conduction pipes and the flow guide pipes; two ends of the two flow guide pipes are respectively communicated with the liquid inlet pipe and the liquid outlet pipe, and the liquid inlet pipes and the liquid outlet pipes on the two flow guide pipes are arranged in opposite directions;
through the liquid inlet pipe, the heat-conducting medium enters one heat-conducting pipe I along the drainage channel of the flow guide pipe and then moves along one heat-conducting pipe I, the partition plate in the heat-conducting pipe I prevents the heat-conducting medium from continuously moving, the heat-conducting medium enters the adjacent heat-conducting pipe I through the other drainage channel, and the heat-conducting medium conducts heat to the heat-conducting pipes repeatedly, so that the contact part of the heat-conducting pipe I and the material inlet pipe conducts heat, and the heat-conducting modes of the two pairs of material inlet pipes of the heat;
because the in-process temperature that heat-conducting medium flows to end heat pipe one along initial heat pipe reduces gradually, thereby the difference in temperature is big after the heating of a pair of inlet pipe of a plurality of heat pipes, heat-conducting medium is along initial heat pipe two, second heat pipe two, third heat pipe etc. until reaching the inlet pipe middle part, in flowing into adjacent heat pipe one through the drainage plate part, heat-conducting medium in a plurality of heat pipe one of end heats, and when heat-conducting medium flows to a plurality of heat pipe two of end, heat pipe one flows into a plurality of heat pipe two of end through the drainage plate to partial heat-conducting medium, heat-conducting medium heats, thereby through two strands of heat-conducting medium temperature complementation, let inlet pipe bulk temperature at less temperature range.
Has the advantages that:
the heat conducting medium is rotated and moved forwards through the first heat conducting pipe, the first flow guiding pipe, the second heat conducting pipe and the second flow guiding pipe, so that the wall surface of the feeding pipe is fully heated.
According to the invention, part of high-temperature heat-conducting medium flows into the low-temperature heat-conducting medium through the guide plate, so that the temperature of the low-temperature heat-conducting medium is raised, the temperatures of the two heat-conducting media are complementary, the integral temperature of the feeding pipe is in a smaller temperature range, the preheating stability of the feeding pipe on liquid is improved, and the problems that the temperature difference between the two ends of the feeding pipe is large, the liquid gradually loses heat in the flowing process and the preheating is insufficient are avoided.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view of the structure of a flow guide plate according to the present invention.
FIG. 3 is a partial structural schematic diagram of the present invention.
FIG. 4 is a schematic view of the internal structure of the draft tube of the present invention.
FIG. 5 is a schematic view of the draft tube guiding the flow of the heat transfer medium according to the present invention.
Fig. 6 is a schematic view of the flow guide plate for guiding the flow of the heat transfer medium according to the present invention.
Description of the drawings:
1. a first heat conduction pipe; 2. a second heat conduction pipe; 3. a flow guide pipe; 4. a liquid inlet pipe; 5. a liquid outlet pipe; 6. a feed pipe; 7. a drainage plate.
Detailed Description
The present invention is further illustrated in the following description with reference to specific embodiments and the accompanying drawings, wherein the details are set forth in order to provide a thorough understanding of the present invention, but it is apparent that the present invention can be embodied in many other forms different from the description herein, and it will be readily appreciated by those skilled in the art that the present invention can be embodied in many different forms without departing from the spirit and scope of the invention.
As shown in fig. 1, the molecular distillation uniform temperature preheating device comprises: the heat conduction pipe I1, the heat conduction pipe II 2, the flow guide pipe 3, the liquid inlet pipe 4, the liquid outlet pipe 5 and the drainage plate 7 are arranged in the shell;
the feeding pipe 6 is communicated with the heavy component buffer tank and the molecular distillation equipment, and liquid in the heavy component buffer tank is conveyed to the molecular distillation equipment;
the first heat conduction pipes 1 are annular, the number of the first heat conduction pipes 1 is multiple, the first heat conduction pipes 1 are respectively embedded on the feeding pipe 6, the cross sections of the first heat conduction pipes 1 are rectangular, so that the first heat conduction pipes 1 are attached to the opposite pipe walls of the feeding pipe 6, partition plates are arranged inside the first heat conduction pipes 1, and intervals of the width of the first heat conduction pipes 1 are formed among the first heat conduction pipes 1;
the partition plate is positioned at the upper end inside the first heat conduction pipe 1;
the structure and the number of the second heat conduction pipes 2 are the same as those of the first heat conduction pipes 1, the second heat conduction pipes 2 are embedded in the feeding pipe 6 and are respectively positioned between the first heat conduction pipes 1, the wall surfaces of the first heat conduction pipes 1 and the second heat conduction pipes 2 are attached, the adjacent first heat conduction pipes 1 are communicated with the two horizontal ends of the second heat conduction pipes 2, and the partition plates in the second heat conduction pipes 2 are positioned at the lower ends of the interiors of the second heat conduction pipes 2;
as shown in fig. 2, the first heat pipe 1 and the second heat pipe 2 are communicated with each other and used in a matching manner, a drainage plate 7 is arranged at a communication position between the adjacent first heat pipe 1 and the adjacent second heat pipe 2, the drainage plate 7 is arranged in an inclined manner, wherein the feed pipe 6 is arranged along the center in a mirror-image dividing manner, and the two adjacent drainage plates 7 are arranged in a reverse inclined manner;
as shown in fig. 3, the number of the draft tubes 3 is two, one draft tube 3 is horizontally arranged on the top surfaces of the first heat pipes 1, and the other draft tube 3 is horizontally arranged on the bottom surfaces of the second heat pipes 2;
through the two flow guide pipes 3, the heat-conducting medium is shunted with the heat-conducting pipes 2 along the heat-conducting pipes I1, so that heat exchange is carried out on the wall surface of the feeding pipe 6;
as shown in fig. 4, a plurality of flow guiding channels 31 are arranged in the flow guiding pipe 3, the flow guiding channels 31 are communicated with the adjacent first heat conducting pipes 1, and the plurality of flow guiding channels 31 are staggered end to end and communicated with the plurality of first heat conducting pipes 1;
the communication mode of the second heat conduction pipe 2 and the drainage channel 31 of the other flow guide pipe 3 is the same as the communication mode of the first heat conduction pipe 1 and the flow guide pipe 3;
two ends of the two flow guide pipes 3 are respectively communicated with a liquid inlet pipe 4 and a liquid outlet pipe 5, and the liquid inlet pipe 4 and the liquid outlet pipe 5 on the two flow guide pipes 3 are arranged in opposite directions;
the heat-conducting medium is reversely shunted through two groups of reversed liquid inlet pipes 4 and liquid outlet pipes 5;
as shown in fig. 5, through the liquid inlet pipe 4, the heat conducting medium enters one heat conducting pipe 1 along the drainage channel 31 of the flow guiding pipe 3, and then moves along one heat conducting pipe 1, the partition board in the heat conducting pipe 1 prevents the heat conducting medium from continuing to move, the heat conducting medium enters the adjacent heat conducting pipe 1 through the other drainage channel 31, and the above steps are repeated, the heat conducting medium conducts heat to the plurality of heat conducting pipes 1, so that the contact part of the heat conducting pipe 1 and the feeding pipe 6 conducts heat, and the heat conducting way of the heat conducting pipe 2 to the feeding pipe 6 is the same;
because the in-process temperature that the heat-conducting medium flows to first heat pipe 1 at the end along first initial heat pipe 1 reduces gradually, thereby the temperature difference is big after a plurality of first heat pipes 1 heat inlet pipe 6, as shown in fig. 6, the heat-conducting medium is along first heat pipe two 2, second heat pipe two 2, third heat pipe two 2 etc. until reaching inlet pipe 6 middle part, flow into adjacent first heat pipe 1 through drainage plate 7 part, heat the heat-conducting medium in a plurality of first heat pipes 1 at the end, and when heat-conducting medium flows to a plurality of second heat pipes 2 at the end, first heat pipe 1 flows into a plurality of second heat pipes 2 at the end through drainage plate 7 with partial heat-conducting medium, heat the heat-conducting medium, thereby through two heat-conducting medium temperature complementarities, let inlet pipe 6 bulk temperature be in less temperature range.
The working principle of the invention is as follows:
the heat-conducting medium firstly passes through the two liquid inlet pipes 4, the heat-conducting medium respectively enters the first heat-conducting pipe 1 and the second heat-conducting pipe 2 along the drainage channel 31 of the two flow guide pipes 3, then the two heat-conducting media reversely flow along the first initial heat-conducting pipe 1 and the second heat-conducting pipe 2 to the first tail heat-conducting pipe 1 and the second heat-conducting pipe 2, and finally flow out along the two liquid outlet pipes 5, in the process that the two heat-conducting media flow, the temperature is gradually decreased in opposite directions, and the two heat-conducting media sequentially pass through the drainage plate 7, part of the high-temperature heat-conducting medium flows into the low-temperature heat-conducting medium, so that the temperature of the low-temperature heat-conducting medium is increased.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; they may be mechanically coupled, directly coupled, or indirectly coupled through intervening agents, both internally and/or in any other manner known to those skilled in the art. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. Molecular distillation samming preheating device includes: the heat conduction pipe I (1), the heat conduction pipe II (2), the flow guide pipe (3), the liquid inlet pipe (4), the liquid outlet pipe (5) and the drainage plate (7); the method is characterized in that: the feed pipe (6) is communicated with the heavy component buffer tank and the molecular distillation equipment, the first heat conduction pipes (1) are of annular structures and are in a plurality of numbers, the first heat conduction pipes (1) are respectively embedded on the feed pipe (6), the cross sections of the first heat conduction pipes (1) are rectangular, the first heat conduction pipes (1) are attached to the opposite pipe walls between the feed pipe (6), partition plates are arranged inside the first heat conduction pipes (1), intervals of the width of the first heat conduction pipes (1) are formed among the first heat conduction pipes (1), the partition plates are positioned at the upper ends inside the first heat conduction pipes (1), the structures and the numbers of the second heat conduction pipes (2) are the same as those of the first heat conduction pipes (1), the second heat conduction pipes (2) are embedded on the feed pipe (6) and are respectively positioned between the first heat conduction pipes (1), the first heat conduction pipes (1) are attached to the wall surfaces of the second heat conduction pipes (2), and the first heat conduction pipes, and the partition plate in the second heat conduction pipe (2) is positioned at the lower end in the second heat conduction pipe (2).
2. A molecular distillation uniform temperature preheating device according to claim 1, characterized in that: the adjacent communicating parts of the first heat-conducting pipes (1) and the second heat-conducting pipes (2) are provided with the drainage plates (7), the number of the drainage pipes (3) is two, one drainage pipe (3) is horizontally arranged on the top surfaces of the first heat-conducting pipes (1), and the other drainage pipe (3) is horizontally arranged on the bottom surfaces of the second heat-conducting pipes (2).
3. A molecular distillation temperature-equalizing preheating device according to claim 2, characterized in that: be equipped with a plurality of drainage channels (31) in honeycomb duct (3), drainage channel (31) communicate in adjacent heat pipe (1), a plurality of drainage channels (31) head and the tail staggered arrangement, communicate a plurality of heat pipe (1), the conduction channel (31) intercommunication mode and heat pipe (1) the same with the intercommunication mode of honeycomb duct (3) of heat pipe two (2) and another honeycomb duct (3), the both ends of honeycomb duct (3) communicate feed liquor pipe (4) and drain pipe (5) respectively.
4. A molecular distillation temperature-equalizing preheating device according to claim 2, characterized in that: the drainage plates (7) are obliquely arranged, and the vertical inclination directions of the two adjacent drainage plates (7) are opposite.
5. A molecular distillation temperature-equalizing preheating device according to claim 2, characterized in that: the liquid inlet pipe (4) and the liquid outlet pipe (5) on the outer walls of the two flow guide pipes (3) are arranged at opposite positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011431065.3A CN112403011B (en) | 2020-12-07 | 2020-12-07 | Molecular distillation uniform temperature preheating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011431065.3A CN112403011B (en) | 2020-12-07 | 2020-12-07 | Molecular distillation uniform temperature preheating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112403011A true CN112403011A (en) | 2021-02-26 |
| CN112403011B CN112403011B (en) | 2022-04-08 |
Family
ID=74775436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011431065.3A Active CN112403011B (en) | 2020-12-07 | 2020-12-07 | Molecular distillation uniform temperature preheating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112403011B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6605474B1 (en) * | 1998-02-24 | 2003-08-12 | Genevac Limited | Method and apparatus for determining temperature of and controlling the evaporation of liquid samples |
| CN101947474A (en) * | 2010-07-21 | 2011-01-19 | 北京航空航天大学 | Fractional liquid supply temperature self compensation liquid helium heat sink structure |
| CN109293221A (en) * | 2018-10-23 | 2019-02-01 | 江门粤玻实业有限公司 | A kind of energy-saving type glass furnace of high waste gas recovery |
| CN109331757A (en) * | 2018-11-16 | 2019-02-15 | 常州那央生物科技有限公司 | Tubular microreactors, Microfluidic Mixing method and preparation method thereof |
| CN109469894A (en) * | 2018-11-26 | 2019-03-15 | 贺全顺 | The hanging multi-functional thermally conductive fort of column |
| CN109518563A (en) * | 2018-10-15 | 2019-03-26 | 惠安铁邦五金制品有限公司 | A kind of magnetic centrifugal bubble removing road building materials are evenly heated mixing arrangement |
| CN110585757A (en) * | 2019-10-09 | 2019-12-20 | 浙江工业大学 | Circulation continuous crystallizer |
| US20200381757A1 (en) * | 2017-11-14 | 2020-12-03 | Shanghai Covapor Energy Technology Co., Ltd | Hydrated magnesium hydride energy system |
-
2020
- 2020-12-07 CN CN202011431065.3A patent/CN112403011B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6605474B1 (en) * | 1998-02-24 | 2003-08-12 | Genevac Limited | Method and apparatus for determining temperature of and controlling the evaporation of liquid samples |
| CN101947474A (en) * | 2010-07-21 | 2011-01-19 | 北京航空航天大学 | Fractional liquid supply temperature self compensation liquid helium heat sink structure |
| US20200381757A1 (en) * | 2017-11-14 | 2020-12-03 | Shanghai Covapor Energy Technology Co., Ltd | Hydrated magnesium hydride energy system |
| CN109518563A (en) * | 2018-10-15 | 2019-03-26 | 惠安铁邦五金制品有限公司 | A kind of magnetic centrifugal bubble removing road building materials are evenly heated mixing arrangement |
| CN109293221A (en) * | 2018-10-23 | 2019-02-01 | 江门粤玻实业有限公司 | A kind of energy-saving type glass furnace of high waste gas recovery |
| CN109331757A (en) * | 2018-11-16 | 2019-02-15 | 常州那央生物科技有限公司 | Tubular microreactors, Microfluidic Mixing method and preparation method thereof |
| CN109469894A (en) * | 2018-11-26 | 2019-03-15 | 贺全顺 | The hanging multi-functional thermally conductive fort of column |
| CN110585757A (en) * | 2019-10-09 | 2019-12-20 | 浙江工业大学 | Circulation continuous crystallizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112403011B (en) | 2022-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102150003B (en) | Tubular heat exchanger for controlling a wide performance range | |
| EP2525182A2 (en) | Heat exchanger, a food handler including the heat exchanger, and a manufacturing method of the heat exchanger | |
| WO2020114171A1 (en) | Dual-layer isothermal spheroidizing annealing heat treatment device for bearing steal bar pipe material | |
| CN103353246A (en) | Recuperative heat exchanger of powder | |
| CN112403011B (en) | Molecular distillation uniform temperature preheating device | |
| WO2020114175A1 (en) | Specialized nuclear-grade zirconium plate rolling and quenching heat treatment continuous production line and process therefor | |
| WO2004093519A3 (en) | Heat exchanger and associated method | |
| TWI672471B (en) | Heat exchanger | |
| KR101344515B1 (en) | evaporator | |
| CN103471432A (en) | Double-spiral sheet type fixed tube-sheet heat exchanger with temperature control function | |
| WO2023142545A1 (en) | Liquid cooling system and battery pack | |
| CN115810831A (en) | Battery cooling device and new energy vehicle | |
| CN212431896U (en) | Dual-system micro-channel collecting pipe | |
| JP2023508434A (en) | Marine fuel heating system | |
| CN207262515U (en) | A kind of self-circulating energy-saving heating system | |
| CN209405971U (en) | A kind of ozone exhaust gas treating device | |
| CN202438164U (en) | Flash evaporator | |
| CN200993537Y (en) | Coiled-pipe heat exchanger | |
| CN211147396U (en) | Waste water waste heat recovery device for strip steel cooling | |
| CN214842527U (en) | Kiln tail heat recovery system | |
| CN218989166U (en) | Active coke cooling device | |
| CN214250613U (en) | Wine steam condensing equipment and wine making system | |
| CN219551271U (en) | Heat exchanger for heating stove | |
| CN216644264U (en) | Heat exchange structure for preheating air | |
| CN112337124B (en) | Dislocation preheating device for feeding pipe of molecular distillation equipment |
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 |