EP3906384A1 - Wärmetauscherplatte für einen plattenwärmetauscher mit einer bestimmten wärmetauscherfläche - Google Patents
Wärmetauscherplatte für einen plattenwärmetauscher mit einer bestimmten wärmetauscherflächeInfo
- Publication number
- EP3906384A1 EP3906384A1 EP19748980.0A EP19748980A EP3906384A1 EP 3906384 A1 EP3906384 A1 EP 3906384A1 EP 19748980 A EP19748980 A EP 19748980A EP 3906384 A1 EP3906384 A1 EP 3906384A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- corrugation
- apex line
- drawn
- corrugations
- axis along
- 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
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 230000001154 acute effect Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
- F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
- F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
- F28F3/083—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning capable of being taken apart
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
- F28F3/10—Arrangements for sealing the margins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0022—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for chemical reactors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0042—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for foodstuffs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0059—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for petrochemical plants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0006—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the plate-like or laminated conduits being enclosed within a pressure vessel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
- F28F21/065—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing plate-like or laminated conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
- F28F21/083—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys from stainless steel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/086—Heat exchange elements made from metals or metal alloys from titanium or titanium alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/10—Secondary fins, e.g. projections or recesses on main fins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
- F28F2255/06—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes composite, e.g. polymers with fillers or fibres
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/02—Fastening; Joining by using bonding materials; by embedding elements in particular materials
- F28F2275/025—Fastening; Joining by using bonding materials; by embedding elements in particular materials by using adhesives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/04—Fastening; Joining by brazing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/06—Fastening; Joining by welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/20—Fastening; Joining with threaded elements
Definitions
- the subject of the invention is the shape of the heat exchange area of the heating plate of the plate heat exchanger.
- Plate heat exchangers consists of heating plates laid alternately. Due to the way of their construction, one can differentiate the disassembled (screwed, gasketed) heat exchangers, not disassembled heat exchangers (soldered, welded, shell-plate), and partly disassembled heat exchangers (semi-welded gasketed).
- the essence of the construction of disassembled plate heat exchangers is the pressure of dis ountable heating plate package using the construction of frame and screws. Heating plates with a corrugated pattern contact each other by the tops of the notches are and guarantee tightness and creating channels, in which the working medium flows.
- Brazed plate heat exchangers have heating plate packages that are permanently brazed together. They can be brazed with copper (common solution), nickel or stainless material to ensure adequate anti-corrosiveness in an aggressive work environment.
- copper common solution
- nickel nickel
- stainless material to ensure adequate anti-corrosiveness in an aggressive work environment.
- the method of joining plates deserves particular attention. They are welded in pairs, then sealed with gaskets. One of the working media flows through the channels formed by the heating plates, then the cooling fluid or the cooled fluid flows between the pairs of such plates.
- the plate package is located in the shell.
- each subsequent heating plate is rotated by 180°.
- Such positioning and screwing, soldering, gluing or welding allows to create independent channels by means of which the heating and cooling medium will be able to participate in the heat exchange process.
- the shape of the heat exchange area of the heating plate of the plate heat exchanger has a strong influence on the heat exchanger work parameters.
- the important feature that characterizes each heat exchanger is the pressure drop. To determine the flow pressure drop, the pressure value at the exchanger input and the outlet are measured. The difference in the values obtained defines the flow pressure drop. In the case of heating plates with a corrugated pattern of high chevron angle geometry, the flow pressure drop is higher and the thermal efficiency is higher, while using lower chevron angle results in lower flow pressure drop, but also in decreased heat exchange.
- the main advantages of plate heat exchangers include efficiency of heat exchange, compact design, small fluid volume, reliability and safety during work, flexibility of heat exchanger selection based on operating parameters, relatively low price in relation to the real efficiency of the device, relatively high turbulence of the working medium inside heat exchangers.
- the number of points furthest from the axis along which the apex line of the corrugation is drawn, and at the same time lying on the apex line of the corrugation is at least 2 for every 200 mm of the length of the axis along which the apex line of the corrugation is drawn;
- the apex line of the corrugations is preferably in the form of a polygonal curve, the angle between the axis along which the apex line of the corrugation is drawn and the axis parallel to the apex line of the corrugation, is the opening angle.
- the heating plate (1 ) is part of a alternately laid heating plates package (6) being part of a plate heat exchanger (5).
- the heat exchanger (5) may have cover plates (7) and nozzles (8) used for mounting and connecting heat exchanger (5) elements.
- the elements of the heat exchanger (5), in particular the heating plates (1 ) are made of stainless steel, but can also be made of titanium, its alloys or of various metals and/or metal alloys and/or non-metals and/or plastics and or composite materials. Connecting the components of the heat exchanger (5) is done through the soldering process, but it can also be done by welding or gluing, or by screwing. This provides a wide range of applications in the industry, including energy, pharmaceutical, food, petrochemical, chemical, mining, at pool installations, HVAC, HVACR and sewage treatment plants.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL127945U PL73432Y1 (pl) | 2019-01-04 | 2019-01-04 | Płyta grzewcza z powierzchnią wymiany ciepła płytowego wymiennika ciepła |
| PCT/PL2019/000048 WO2020141982A1 (en) | 2019-01-04 | 2019-06-28 | Heat exchanger plate for a plate heat exchanger with a particular heat exchange area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3906384A1 true EP3906384A1 (de) | 2021-11-10 |
Family
ID=71512332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19748980.0A Pending EP3906384A1 (de) | 2019-01-04 | 2019-06-28 | Wärmetauscherplatte für einen plattenwärmetauscher mit einer bestimmten wärmetauscherfläche |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20210318079A1 (de) |
| EP (1) | EP3906384A1 (de) |
| CN (1) | CN113272613A (de) |
| PL (1) | PL73432Y1 (de) |
| WO (1) | WO2020141982A1 (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL126185U1 (pl) * | 2017-03-26 | 2018-10-08 | Secespol Spółka Z Ograniczoną Odpowiedzialnością | Płyta grzewcza wymiennika ciepła |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2699324A (en) * | 1949-01-13 | 1955-01-11 | Apv Co Ltd | Plate type heat exchanger |
| SE135430C1 (de) * | 1950-01-11 | 1952-04-29 | ||
| GB1173236A (en) * | 1967-04-17 | 1969-12-03 | Apv Co Ltd | Improvements in or relating to Plate Heat Exchangers |
| SE423750B (sv) * | 1977-01-14 | 1982-05-24 | Munters Ab Carl | Anordning vid vermevexlare for sensibel och/eller latent vermeoverforing |
| DE3903101A1 (de) | 1989-02-02 | 1990-08-09 | Agfa Gevaert Ag | Bildwand fuer projektionskopiergeraet |
| FR2714456B1 (fr) * | 1993-12-29 | 1996-01-12 | Commissariat Energie Atomique | Echangeur de chaleur à plaques améliorées. |
| AT406301B (de) * | 1998-06-24 | 2000-04-25 | Ernst P Fischer Maschinen Und | Plattenwärmetauscher |
| JP2001116483A (ja) | 1999-10-22 | 2001-04-27 | Ebara Corp | プレート熱交換器 |
| EP1654508B2 (de) * | 2003-08-01 | 2020-03-11 | MAHLE Behr GmbH & Co. KG | Wärmeübertrager sowie verfahren zu dessen herstellung |
| DE202005009948U1 (de) * | 2005-06-23 | 2006-11-16 | Autokühler GmbH & Co. KG | Wärmeaustauschelement und damit hergestellter Wärmeaustauscher |
| DE102005034305A1 (de) | 2005-07-22 | 2007-01-25 | Behr Gmbh & Co. Kg | Plattenelement für einen Plattenkühler |
| SE532344C2 (sv) * | 2007-12-21 | 2009-12-22 | Alfa Laval Corp Ab | Packningsstöd i värmeväxlare och värmeväxlare innefattande packningsstöd |
| AU2009225118B2 (en) * | 2008-03-13 | 2012-02-02 | Danfoss A/S | A double plate heat exchanger |
| JP5243623B2 (ja) | 2009-02-04 | 2013-07-24 | アルファ ラヴァル コーポレイト アクチボラゲット | プレート式熱交換器 |
| CN203687734U (zh) * | 2013-12-30 | 2014-07-02 | 天津博泰换热设备有限公司 | 流体通道横截面积不等的板式换热器板片及板式换热器 |
| CN105890426A (zh) * | 2015-01-25 | 2016-08-24 | 天津市津能双鹤热力设备有限公司 | 板式换热器人字形板片 |
| CN108827057A (zh) * | 2018-04-30 | 2018-11-16 | 南京理工大学 | 一种新型鱼骨形的板式换热器复合波纹板片 |
-
2019
- 2019-01-04 PL PL127945U patent/PL73432Y1/pl unknown
- 2019-06-28 WO PCT/PL2019/000048 patent/WO2020141982A1/en not_active Ceased
- 2019-06-28 CN CN201980087134.2A patent/CN113272613A/zh active Pending
- 2019-06-28 EP EP19748980.0A patent/EP3906384A1/de active Pending
-
2021
- 2021-06-24 US US17/356,679 patent/US20210318079A1/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL126185U1 (pl) * | 2017-03-26 | 2018-10-08 | Secespol Spółka Z Ograniczoną Odpowiedzialnością | Płyta grzewcza wymiennika ciepła |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113272613A (zh) | 2021-08-17 |
| US20210318079A1 (en) | 2021-10-14 |
| PL127945U1 (pl) | 2020-07-13 |
| WO2020141982A1 (en) | 2020-07-09 |
| PL73432Y1 (pl) | 2024-04-22 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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