EP3504438A1 - Doppelmembran für eine staubpumpe - Google Patents
Doppelmembran für eine staubpumpeInfo
- Publication number
- EP3504438A1 EP3504438A1 EP17761039.1A EP17761039A EP3504438A1 EP 3504438 A1 EP3504438 A1 EP 3504438A1 EP 17761039 A EP17761039 A EP 17761039A EP 3504438 A1 EP3504438 A1 EP 3504438A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- membrane
- dust
- diaphragm pump
- pump
- elastic layer
- 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
- 239000012528 membrane Substances 0.000 title claims abstract description 52
- 239000000428 dust Substances 0.000 title abstract description 25
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003245 coal Substances 0.000 abstract description 3
- 230000008439 repair process Effects 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 239000004411 aluminium Substances 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 230000003993 interaction Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000011343 solid material Substances 0.000 description 3
- 238000002309 gasification Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 241000251730 Chondrichthyes Species 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- -1 for example Inorganic materials 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/06—Pumps having fluid drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/0009—Special features
- F04B43/0054—Special features particularities of the flexible members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/0009—Special features
- F04B43/0081—Special features systems, control, safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/0009—Special features
- F04B43/0081—Special features systems, control, safety measures
- F04B43/009—Special features systems, control, safety measures leakage control; pump systems with two flexible members; between the actuating element and the pumped fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
- F04B45/053—Pumps having fluid drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
Definitions
- the invention relates to a double diaphragm for a pump for fluidizing, covering and conveying pulverulent products, such as pulverized coal, with the aid of
- Diaphragm pump is relaxed in a final step after the delivery of the conveyed material and the pump cycle starts from the beginning. Due to this cyclical (discontinuous) mode of operation, usually several pump heads are connected in order to ensure continuous operation. For this purpose, the individual pump cycles are operated out of phase with each other.
- Filter materials which meet the requirements of compressive strength and temperature resistance are, for example, the metallic filtration fabrics, sintered metal and sintered plastic described in DE102012216084. The described robust materials are only available in a flat or plate-like structure and not in the required size or dimension. Mechanical processing into other geometric shapes, such as curved half-shells, is not possible due to the required filter fineness and the damage or smearing of the porous filter structure resulting from mechanical processing.
- the invention has for its object to provide a diaphragm for a pump with integrated filter element 5 for supplying turbulence and stringing gas in the pressure vessel of the pump, which is the Requirements compressive strength, temperature resistance high reliability and high
- a monitoring and ensuring the membrane leakage is given.
- the invention allows a structural design of the dust chamber whose contour is particularly advantageous adapted to the deflection of the membrane and possibly to the guide rod of the membrane. As a result, a uniform and reversible deformation of the membrane is achieved with a possible low wear.
- a largely flat concern of the membrane (3) on the curved, half-shell-shaped Auflockimisthesis (5) can be achieved.
- a small dead volume can be achieved, which leads to a minimum volume of dust space (10) with a simultaneously high delivery rate and a low high-pressure gas loss.
- the diaphragm pump illustrated in FIG. 1 is a device consisting of two pressure-resistant half-shells (1, 12), which are connected to one another in a gastight manner via a flange connection (2).
- the flange connection has the additional function of securing and clamping the membrane (3) and the loosening surface (5) via a filter flange (4). Due to the spherical geometry can thus be an advantageous and gentle for the filter material deflection of the membrane in the dust space in the form of a paraboloid of revolution.
- Deflection of the membrane is caused by a force of the hydraulic fluid, as described for example in DE102016201182. Jump-like changes are avoided and after completion of the Aus finevorganges a largely flat concern of the membrane (3) on the half-shell-shaped Auflock mecanics construction (5) can be achieved.
- This advantageous embodiment makes it possible to achieve a low dead volume, which leads to a minimum volume of dust space (10) with a simultaneously high delivery rate and a low high-pressure gas loss.
- the membrane is guided and stabilized by a guide rod (9) in their movement.
- the guide rod can be used in particularly advantageous additional tasks, such as determining the position of the diaphragm via metrological position sensors.
- the invention is furthermore based on the problem of producing a dense phase conveying system described in DE 2005047583 by producing a fluidized bed within the dust chamber.
- a dense phase conveying system described in DE 2005047583 by producing a fluidized bed within the dust chamber.
- porous metal for example, aluminum having a sufficiently small pore size and filter fineness ⁇ 20 ⁇ m is used. This ensures that the finest dust particles do not penetrate into the loosening surface during the expansion process.
- liquid metal for example aluminum
- salt has a much higher melting point than metals such as aluminum and does not change into the liquid state of aggregation, but spreads evenly throughout the melt. After solidification of the metal, the salt is washed out with the aid of a salt-dissolving liquid and porous and gas-permeable metal is formed.
- An advantage of this method is the possibility of performing a mechanical treatment before leaching of the salt crystals. This excludes smearing of the pores. The required porosity and filter fineness are set by the size of the salt grains.
- the hydraulic half shell (1) has a smaller inner diameter than the inner diameter of the dust half shell (12).
- the loosening surface (5) can be used as a half shell with flanged edge molded in two layers, in the lower part as a porous metal and in the flange of solid material.
- the half-shell-shaped casting mold of the loosening surface (5) is widened with additional annular and / or point-shaped supporting elements (8).
- a gas space 13 which can be used for the distribution of the loosening and bespoke gas.
- the membrane 3 as a double membrane, two rubber-elastic membranes are arranged mechanically supported against each other such that a closed intermediate space is formed between the membranes, which can be monitored by means of a pressure sensor ⁇ (14).
- the intermediate space has a pressure which is lower than the pressure in the hydraulic chamber or the dust chamber.
- the two membranes can thereby be selectively arranged mechanically supported against each other, that between them a layer of balls are arranged.
- the two membranes can be arranged mechanically supported against each other, that between them a coupling liquid is introduced, which is in operative connection with the pressure sensor ⁇ .
- the rubber-elastic membrane may be formed with an elastomer or a solid PTFE mixture.
- one of the two membranes can be given by an elastomer and the other of the two membranes by a massive PTFE mixture.
- the invention is also by a diaphragm pump for
- the pressure-resistant housing of the dust pump consists of two half-shells which are connected to a flange connection and into which a membrane and loosening surface are flanged
- the loosening surface is designed as a half-shell, contains support elements and a gas space between pressure-resistant lower half-shell and loosening surface consists.
- the present invention has been explained in detail for illustrative purposes with reference to specific embodiments. In this case, elements of the individual embodiments can also be combined with each other. The invention is therefore not intended to be limited to individual embodiments, but merely to be limited by the appended claims. LIST OF REFERENCE NUMBERS
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016216006.0A DE102016216006A1 (de) | 2016-08-25 | 2016-08-25 | Doppelmembran für eine Staubpumpe |
PCT/EP2017/071066 WO2018036979A1 (de) | 2016-08-25 | 2017-08-22 | Doppelmembran für eine staubpumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3504438A1 true EP3504438A1 (de) | 2019-07-03 |
EP3504438B1 EP3504438B1 (de) | 2020-10-21 |
Family
ID=59745889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17761039.1A Active EP3504438B1 (de) | 2016-08-25 | 2017-08-22 | Membranpumpe |
Country Status (5)
Country | Link |
---|---|
US (1) | US10781807B2 (de) |
EP (1) | EP3504438B1 (de) |
CN (1) | CN109790830B (de) |
DE (1) | DE102016216006A1 (de) |
WO (1) | WO2018036979A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016216012A1 (de) * | 2016-08-25 | 2018-03-01 | Siemens Aktiengesellschaft | Membranpumpe mit porösem, gewölbtem Aluminiumfilter |
US11946560B2 (en) * | 2021-03-22 | 2024-04-02 | The Royal Institution For The Advancement Of Learning/Mcgill University | Pneumatic valve |
Family Cites Families (51)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE568999C (de) | 1933-01-27 | Richard Bertram | Foerderschnecke fuer Staubpumpen | |
DE427455C (de) | 1925-07-08 | 1926-04-10 | Allg Elek Citaets Ges Fa | Verfahren zum Foerdern von Staubluftgemischen |
DE449676C (de) | 1925-11-29 | 1927-09-19 | Babcock & Wilcox Dampfkessel W | Staubpumpe mit Pressluftfoerderung nach dem Emulsionsverfahren |
DE485635C (de) | 1926-06-08 | 1929-11-02 | Kohlenauswertung G M B H | Staubpumpe mit mehrfacher Lufteinfuehrung |
DE551066C (de) | 1930-04-25 | 1932-05-25 | Paul Griese | Staubpumpe |
DE596565C (de) | 1932-04-29 | 1934-05-08 | Internat Cement Gun Company | Verfahren zum Foerdern einer Staub-Luft-Emulsion |
DE650988C (de) | 1932-05-20 | 1937-10-06 | Fuller Co | Staubpumpe mit den Gutseinlauf durchsetzender und in der Pumpentrommel und beim Gutsauslauf frei tragend angeordneter Foerderschnecke |
DE615779C (de) | 1932-05-20 | 1935-07-12 | Fuller Co | Staubpumpe mit Foerderschnecke und Luftzufuehrung am Schneckenaustritt und verstellbarem Abstand zwischen Lufteinlass und dem Endfluegel der Foerderschnecke |
DE656009C (de) | 1933-08-11 | 1938-01-27 | Fuller Co | Staubpumpe mit Schneckenfoerderung |
DE1008201B (de) | 1953-06-11 | 1957-05-09 | Ludolf Engel Dr Ing | Einschleusvorrichtung fuer Druck- oder Unterdruckbehaelter |
US3138856A (en) | 1961-10-09 | 1964-06-30 | Dow Chemical Co | Method of producing clad porous metal articles |
DE1175653B (de) | 1962-03-28 | 1964-08-13 | Basf Ag | Verfahren und Vorrichtung zum diskontinuier-lichen Dosieren von pulverfoermigen Stoffen |
US3131638A (en) * | 1962-07-05 | 1964-05-05 | Lapp Insulator Company Inc | Leak detecting device |
FR1552305A (de) * | 1967-12-15 | 1969-01-03 | ||
DD81606A1 (de) | 1970-03-11 | 1971-04-20 | Ernst Schlender | Staubpumpe |
DE2722931C2 (de) | 1977-05-20 | 1987-04-30 | Krupp Koppers GmbH, 4300 Essen | Feststoffkolbenpumpe und Verfahren zu deren Betrieb zum Fördern von feinkörnigen bis staubförmigen Brennstoffen |
DD147188A3 (de) | 1977-09-19 | 1981-03-25 | Lutz Barchmann | Verfahren und vorrichtung zur druckvergasung staubfoermiger brennstoffe |
DE3035745A1 (de) | 1980-09-22 | 1982-05-13 | Adrian van 2000 Hamburg Hess | Staubpumpe mit kugelrueckschlagklappe |
US4818191A (en) | 1982-03-31 | 1989-04-04 | Neyra Industries, Inc. | Double-acting diaphragm pump system |
FR2624922B1 (fr) * | 1987-12-17 | 1990-04-27 | Milton Roy Dosapro | Dispositif de detection de rupture d'une membrane de pompe a membrane |
DE3909800A1 (de) | 1989-03-24 | 1990-09-27 | Neuhaeuser Gmbh & Co | Membranpumpe zum pneumatischen foerdern von fluidisierten schuettguetern |
US5062770A (en) * | 1989-08-11 | 1991-11-05 | Systems Chemistry, Inc. | Fluid pumping apparatus and system with leak detection and containment |
DE3931516C2 (de) * | 1989-09-21 | 1993-10-14 | Ott Kg Lewa | Membranpumpe mit mechanisch angetriebener Membran |
DE4018464A1 (de) * | 1990-06-08 | 1991-12-12 | Ott Kg Lewa | Membran fuer eine hydraulisch angetriebene membranpumpe |
EP0582628B1 (de) * | 1991-05-03 | 1997-01-22 | REGIPUR Polyurethan-Anlagentechnik GmbH | Mehrlagen-membran mit leckage-ableitung für membranpumpen |
US5560279A (en) * | 1995-03-16 | 1996-10-01 | W. L. Gore & Associates, Inc. | Pre-failure sensing diaphragm |
US6094970A (en) * | 1998-12-15 | 2000-08-01 | Milton Roy Company | Leak detector for a pump |
DE19940498A1 (de) | 1999-08-26 | 2001-03-22 | Knf Neuberger Gmbh | Membranpumpe |
DE10012902B4 (de) * | 2000-03-16 | 2004-02-05 | Lewa Herbert Ott Gmbh + Co. | Atmungsfreie Membraneinspannung |
US6447216B1 (en) | 2000-08-17 | 2002-09-10 | Xerox Corporation | Fluid pumping system for particulate material |
DE10233561B4 (de) * | 2002-07-24 | 2008-02-21 | Prominent Dosiertechnik Gmbh | Sicherheitsmembran für eine Membranpumpe |
WO2005012729A1 (ja) | 2003-08-04 | 2005-02-10 | Nec Corporation | ダイヤフラムポンプおよび該ダイヤフラムポンプを備えた冷却システム |
DE102005047583C5 (de) | 2005-10-04 | 2016-07-07 | Siemens Aktiengesellschaft | Verfahren und Vorrichtung zur geregelten Zufuhr von Brennstaub in einen Flugstromvergaser |
WO2009009189A2 (en) | 2007-04-20 | 2009-01-15 | General Electric Company | Transporting particulate material |
DE202007019632U1 (de) | 2007-11-09 | 2015-01-19 | Erich Bauer | Pulverfördergerät mit Membranpumpe |
DE102008007033A1 (de) | 2008-01-31 | 2009-08-06 | Siemens Aktiengesellschaft | System zur Staubdosierung |
DE102008009679A1 (de) | 2008-02-18 | 2009-08-20 | Siemens Aktiengesellschaft | Staubeintragsystem |
DE102008052673A1 (de) | 2008-10-22 | 2010-04-29 | Uhde Gmbh | Nachfördersystem in einen Kohlevergasungsreaktor |
TWI461522B (zh) | 2008-03-05 | 2014-11-21 | Thyssenkrupp Uhde Gmbh | 用於煤的氣化反應器之連續燃料供應系統 |
DE102008049542C5 (de) | 2008-09-30 | 2016-10-20 | Siemens Aktiengesellschaft | Staubdosiersystem für hohe Drücke durch eine Kombination von Staubpumpe und Schleuse |
DE102009016191B4 (de) | 2009-04-03 | 2013-04-04 | Alstom Technology Ltd. | Verfahren und Anordnung zur Verbesserung des dynamischen Verhaltens eines kohlegefeuerten Kraftwerkes bei primären und/oder sekundären Anforderungen des Elektrizitätsnetz-Betreibers an die Stromabgabe in das Netz |
US9079136B2 (en) | 2009-05-21 | 2015-07-14 | Battelle Memorial Institute | Thin, porous metal sheets and methods for making the same |
US8851406B2 (en) | 2010-04-13 | 2014-10-07 | Aerojet Rocketdyne Of De, Inc. | Pump apparatus including deconsolidator |
CN102562541A (zh) * | 2010-12-11 | 2012-07-11 | 宜昌天通泵业有限公司 | 隔膜式注浆泵 |
CN202045946U (zh) * | 2011-03-17 | 2011-11-23 | 上海麦特密封件有限公司 | 矿浆泵复合隔膜 |
DE102011007066A1 (de) | 2011-04-08 | 2012-10-11 | Siemens Aktiengesellschaft | Membran-Staubpumpen-System |
DE102011052432A1 (de) | 2011-04-15 | 2012-10-18 | Reinhausen Plasma Gmbh | Membranpumpe und Verfahren zum Fördern von feinkörnigen Pulvern mit Hilfe einer Membranpumpe |
DE102012216084A1 (de) | 2012-09-11 | 2014-03-13 | Siemens Aktiengesellschaft | Modifizierter Wirbelboden für den Einsatz in Vergasungsanlagen mit trockener Brennstoffeinspeisung |
WO2015091976A1 (en) * | 2013-12-20 | 2015-06-25 | Tetra Laval Holdings & Finance S.A. | A conductivity sensor, and a pump comprising such sensor |
DE102014212919A1 (de) | 2014-07-03 | 2016-01-07 | Siemens Aktiengesellschaft | Filterelement für den Einsatz in Vergasungsanlagen mit trockener Brennstoffeinspeisung |
DE102016201182A1 (de) | 2016-01-27 | 2017-07-27 | Siemens Aktiengesellschaft | Membranpumpe mit Staubansaugung von unten |
-
2016
- 2016-08-25 DE DE102016216006.0A patent/DE102016216006A1/de not_active Withdrawn
-
2017
- 2017-08-22 WO PCT/EP2017/071066 patent/WO2018036979A1/de unknown
- 2017-08-22 EP EP17761039.1A patent/EP3504438B1/de active Active
- 2017-08-22 US US16/327,588 patent/US10781807B2/en active Active
- 2017-08-22 CN CN201780058702.7A patent/CN109790830B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
WO2018036979A1 (de) | 2018-03-01 |
US10781807B2 (en) | 2020-09-22 |
CN109790830A (zh) | 2019-05-21 |
EP3504438B1 (de) | 2020-10-21 |
DE102016216006A1 (de) | 2018-03-01 |
CN109790830B (zh) | 2021-07-20 |
US20190195216A1 (en) | 2019-06-27 |
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