EP2935685A1 - Dispositif de sorption d'appareil ménager, et appareil ménager équipé d'un dispositif de sorption - Google Patents

Dispositif de sorption d'appareil ménager, et appareil ménager équipé d'un dispositif de sorption

Info

Publication number
EP2935685A1
EP2935685A1 EP13805410.1A EP13805410A EP2935685A1 EP 2935685 A1 EP2935685 A1 EP 2935685A1 EP 13805410 A EP13805410 A EP 13805410A EP 2935685 A1 EP2935685 A1 EP 2935685A1
Authority
EP
European Patent Office
Prior art keywords
air duct
air
sorption device
sorption
process air
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
Application number
EP13805410.1A
Other languages
German (de)
English (en)
Other versions
EP2935685B1 (fr
Inventor
Harald MOSCHÜTZ
Thomas Schneider
Jörg Ziegler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL13805410T priority Critical patent/PL2935685T3/pl
Publication of EP2935685A1 publication Critical patent/EP2935685A1/fr
Application granted granted Critical
Publication of EP2935685B1 publication Critical patent/EP2935685B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/48—Drying arrangements
    • A47L15/481—Drying arrangements by using water absorbent materials, e.g. Zeolith
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/24—Condensing arrangements

Definitions

  • the invention is in the field of home appliance and household appliance treatment apparatus, in particular laundry and tableware, and relates to a household appliance sorption apparatus having first and second air ducts forming at least one overlay area in which one duct wall of the first and one duct wall of the second Air ducts are adjacent, and with a sorbent layer, which is traversed by process air.
  • the invention also relates to a household appliance equipped with a sorption device with a process air duct through which process air coming from a treatment space flows.
  • the invention is directed in particular to so-called washer-dryers, by which is meant both tumble dryers and multifunctional devices which serve both for washing and for drying laundry.
  • air the so-called process air
  • the hot process air absorbs moisture from the laundry to be dried and releases it as the process progresses.
  • household appliances with sorption devices are known as such, for example, from WO 2009/007289 A1.
  • the process air laden with moisture is conducted into or over a reversibly hydratable desiccant, which may be formed, for example, by zeolite.
  • the desiccant also called sorbent or sorbent extracts moisture from the process air with simultaneous heat release.
  • the resulting dryer and additionally heated process air is then fed back to the laundry to be dried.
  • the sorbent must be regenerated at saturation at the latest.
  • the sorbent is supplied during a so-called desorption heat, which releases the previously stored in the sorbent moisture again.
  • DE 10 2008 032 228 A1 an operating according to this principle device for regenerating a solid sorbent is known, which may be provided in a dishwasher or a classic circulating air dryer.
  • Two zeolite cassettes are accommodated in two enclosures which can be closed by means of flaps, wherein the zeolite cassettes are alternately operated out of phase in their sorption and desorption phases.
  • a sorption device and a household appliance of the type mentioned are known, which allow improved continuous operation.
  • the process air leading process air duct behind a drying chamber which forms a treatment room for laundry to be dried, splits into a first air duct (referred to here as Adsorberkanal) in which a sorption with a sorbent material and a heater, and in at least a further air duct (process air subchannel) on.
  • a first heat exchanger comprises the first and the second air duct.
  • a controllable front Adsorberkanalver gleichvorraum can be arranged.
  • a controllable rear adsorber channel closure device can be arranged at the outlet of the adsorber channel.
  • multiple adsorption phases and desorption phases alternate, in that the adsorber channel is closed at a given time for the entry of moist-warm process air from the drying chamber and an adsorber heater is switched on for regeneration (desorption) of the sorption material.
  • the process air is passed through controllable process air part-channel closure devices through the first air duct (adsorber channel) in such a way that optimal heat exchange occurs there in the heat exchanger.
  • the process air in the adsorber channel flows through a block-shaped sorbent layer in its axial direction.
  • a similar sorption device and a household appliance equipped therewith are disclosed in EP 2 246 470 A1.
  • a first air duct is provided, the wall of which is lined with a sorbent layer.
  • a second fluidly insulated air duct in which a heat exchanger is arranged.
  • the process air is divided by actuation of a selector valve on the two flow-tight air ducts.
  • Regenerable sorption devices have also become known in other areas remote from household appliances.
  • DE 195 12 844 A1 and DE 197 18 047 A1 each describe equipped with a sorption material devices for the treatment and drying of air for the passenger compartment of a motor vehicle.
  • Airflow control elements can be brought into only two defined end positions in which they either direct the air through the device configured in the adsorption mode or in the desorption mode. In the desorption mode, the heated and moisture-laden air is discharged through an exhaust duct to the ambient air of the vehicle.
  • an object of the present invention in the embodiment of a household appliance sorption device or a household appliance of the type mentioned above using as many already provided anyway components to the effect that the outlet temperature of the process air from the device or its inlet temperature into the treatment room precisely can be controlled and limited to a desired setpoint temperature, wherein the efficiency of the sorption and their sorption or desorption is increased.
  • a sorption device of the type mentioned that in the overlay region between the adjacent channel walls at least one passage exists, so that process air can flow from one to the other air duct while flowing through the sorbent layer.
  • the sorbent layer is preferably arranged at least partially between the adjacent channel walls.
  • process air is also provided that seen in the inflow direction of the process air in the sorption, the front axial end of the first air duct is closed, the front axial end of the second air duct is open and at the rear end of the second air duct at least one flow-influencing element is provided such that a passage of a partial air flow of the process air is effected from the second into the first air duct, while a complementary partial air flow flows through the second air duct to the end and combined on the output side with the heated by the sorbent layer part air flow of the process air.
  • the throughput and the inflow into the air ducts or the outflow from the air ducts can be influenced or predetermined by predetermined flow cross sections, throttles and the like.
  • the front end of the second air duct could also be closed, and its rear axial end could be open, and flow-influencing elements could be provided at the rear end of the first air duct, quasi in flow-kinematical reversal.
  • a passage of a partial stream of the process air in the radial, ie obliquely or substantially in the direction perpendicular to the longitudinal axis of the air duct from the second into the first or (in the reverse configuration) of the first into the second air duct is effected while a supplementary partial flow flows through the second (or in the case of a reverse configuration the first) air duct to the end and then reunites only on the output side with the part of the process air heated by the sorbent.
  • the heating element would expediently be in operative contact with a region of the sorbent layer which faces the first flow channel.
  • the electric heating element would preferably be a heating wire wound on the inner circumferential surface of the sorbent layer.
  • Another advantage of the invention is that it has only a minimum of additional components required compared to known sorption.
  • the sorption device according to the invention is characterized in that the sorption layer can have a comparatively large passage area with a very small possible layer thickness.
  • the embodiment of the invention allows the material thickness of the To be flowed through sorbent - preferably zeolite and / or silica gel - extremely low to design at a considerable amount of the sorbent.
  • the process air can advantageously flow through the sorption layer essentially in the radial direction, ie in non-circular cross-sections, obliquely or substantially perpendicular to the longitudinal axis of the air flow channel.
  • the sorption device can be easily arranged in the existing process air circuit in conventional washer-dryers.
  • the term air duct is not to be understood as meaning only a channel through which an inlet can flow to an outlet, but also a flow space that is partially or completely closed or closable in the flow direction at the inlet and / or outlet.
  • each preferred embodiment of the sorption device according to the invention corresponds to a preferred embodiment of the household appliance according to the invention and vice versa, and this even if it is not explicitly stated herein.
  • a first design and manufacturing technology preferred embodiment of the invention provides that the possibility of passage is formed by at least one passage opening in at least one channel wall. With this embodiment, a particularly low-effort and compact realization of the sorption device according to the invention is made possible.
  • a preferred embodiment of the device according to the invention provides that the first and the second air duct are formed coaxially.
  • This embodiment is advantageous both in terms of the flow conditions of the sorbent layer and in that the second air duct at least partially surrounding the first air duct at the same time serves as thermal insulation and thus protects surrounding components from high heat load during the desorption.
  • This advantage is particularly useful in a further development of the invention, wherein the first air duct is delimited by an outer jacket against which the sorbent layer bears with an inner layer side, and wherein the inner channel wall of the second air duct is formed by an outer layer side of the sorbent layer.
  • a heating element is in operative contact with a region of the sorbent layer, which faces the second air duct.
  • the heating element which is preferably designed as an electrical heating element, realizes, due to the proximity to or through direct contact with the sorption material, a particularly good heat transfer, which advantageously supports the desorption phase.
  • the electric heating element may particularly preferably be a heating wire wound around the outer surface of the sorbent layer.
  • the flow-influencing elements are preferably formed by controllable flaps, slides and / or diaphragms. In the case of a circular cross-section of the air ducts, the diaphragms can be designed as so-called iris diaphragms.
  • the air ducts have a rectangular cross-section and have a greater width than height.
  • the domestic appliance according to the invention is provided with a process air duct through which process air coming from a treatment space flows, a sorption apparatus of the type described above being arranged in the process air duct.
  • the sorption device is preferably arranged above the treatment space, because it allows optimal use of the space that is usually available in the upper area of household appliances and prevents the sorbent layer from becoming soaked through process fluid (for example washing or rinsing fluid).
  • process fluid for example washing or rinsing fluid
  • FIG. 2 a semitransparent and perspective view of a sorption device
  • Figure 4 in cross section, the sorption of Figure 2 in the section plane IV-IV.
  • the washer-dryer 1 shows schematically the basic structure of a household appliance, here in the form of a so-called washer-dryer 1.
  • the washer-dryer 1 has a laundry drum rotatably mounted about a rotation axis 2 in a tub which forms a treatment space 3 for laundry 4 to be dried.
  • the treatment room 3 is also part of a drying system, a process air blower 5, a process air circuit 6 with an electric heater 7, an air / air heat exchanger 9 and air ducts 10 in a per se, for example, from DE 10 2010 002 086 A1 (to which reference is also made) known manner.
  • a sorption device 14 is arranged, which will be described in more detail below.
  • the sorption device can be particularly preferably arranged above the treatment space 3 in the housing 15 of the washer-dryer 1 and thereby optimally protected against wetting of the sorption material contained in it.
  • FIGS. 2 to 4 show the sorption device 14 in detail.
  • the sorption device comprises an overlay region 16, in which a first air duct 18 and a second air duct 19 extend coaxially about a longitudinal axis 20.
  • the outer channel wall 22 of the first air duct is at least partially ing channel 18 and the inner channel wall 24 of the second air duct 19 adjacent.
  • a sorbent layer 26 is introduced between the channel walls 22 and 24, a sorbent layer 26 is introduced.
  • As a sorbent zeolite is provided, although other suitable sorptive storage materials can be used.
  • the second air duct 19 is seen in the radial direction R outwardly bounded by an outer jacket 28, which forms the extent of the outer duct wall 29 of the second air duct 19 in the overlay region 16.
  • the inner channel wall 24 of the second air duct 19 is formed by the outer layer side 30 of the sorbent layer 26 which is covered by a mesh or sieve-like member 34 which holds the sorbent layer 26 in position or bounded on the outside.
  • the sorbent layer 26 abuts with its inner layer side 35.
  • a passageway 36 for process air 37th Die für Stammsdorfkeit can, depending on the detailed flow direction and design or installation position of the Sorption device radially or obliquely or perpendicular to the longitudinal axis to the inside or in principle also to the outside.
  • the passage option is realized by openings 40 provided on the shell side, which perforate the outer duct wall 22 of the first air duct 18.
  • another mesh or sieve-like element 41 is provided which covers the sorbent layer 26 on the inside and thus prevents undesired escape of the sorption material through the openings.
  • the sorbent layer 26 is a heating element 42 in operative contact, which is formed by a heating wire 43, with which the sorbent layer 26 on the side of its outer jacket (ie around the outer layer side 30 around) is wrapped.
  • the direct contact between the heating element 42 and the material of the sorbent layer 26 results in a particularly good heat transfer, which is particularly advantageous in a desorption phase described below.
  • the front axial region or the front end 50 of the air duct 18 is closed, while the front end 52 of the air duct 19 is open.
  • the rear end 54 of the air duct 18 is open, while the air duct 19 at its rear area or rear end 55 by moving flow-influencing elements - designed here in the form of flaps 56 - if necessary, more or less closable.
  • the air ducts 18, 19 each have a rectangular cross section 60, their width 61 being significantly greater than their height 62.
  • the process air transports the water vapor, which is released from the sorbent layer 26 by heating the sorbent material (sorbent) by means of the heater 42, from the sorbent layer 26.
  • this may result in a heating of the process air, depending on the temperature required for desorption of the water from the sorbent material.
  • a temperature sensor 66 FIG. 1
  • the flaps 56 are opened as needed.
  • a partial airflow 71 of the inflowing process air 46 is made possible to use the second air duct 19 quasi as a bypass and to flow through to the end 55 and exit there.
  • the outlet temperature of the effluent Menden process air 70 is suitably set by the design of the process air circuit 6 in the region of the air ducts 18 and 19 and the adjustment of the heat to be supplied by the heater 42 to a desired value; if necessary, it can be regulated by the heat output.
  • Process air 46 flows into the second air duct 19 in the process air circuit 6. At least part of the process air 37 passes through the sorbent layer 26 and the openings 40, as described above, into the first air duct 18 and deposits moisture in the sorbent layer. In addition to the heat possibly originating from the preceding desorption phase, binding energy and, in particular, condensation enthalpy in the form of heat are thus released from the sorbent layer 26.
  • the temperature of the air leaving the rear open region 54 of the first air-guiding channel 18 drops from the desorption temperature (for example from 300 ° C.) to approximately 100 ° C. to 150 ° C.
  • the temperature of the outflowing air 70 can be regulated as a whole.
  • conventional drying phases without sorption by the sorption apparatus may be desirable or necessary.
  • the controller 64 the heater 7 and the process air blower 5 are turned on and the flaps 56 are fully opened. Because of the higher flow resistance when flowing through the sorbent layer 26, in this configuration, almost all of the inflowing process air 46 flows axially past the sorbent layer 26, so that the second air duct 19 virtually forms a complete bypass for the process air.
  • the process air can be heated alone or in addition by the heater 42.
  • the temperature of the exiting air 70 can be regulated in this case by appropriate control of the heater 42.
  • the air flow in the second air duct 19 additionally serves as heat insulation and protects surrounding components in particular against the high temperatures during the desorption phase described above.
  • the inlet temperature of the process air can be maintained at a desired temperature of, for example, 100 ° C.
  • the material thickness 72 (FIG. 4) of the sorbent layer 26 can be dimensioned very small, because a large number of openings 40 arranged on the shell side provides a comparatively large throughflow area for the process air at the transition between the air ducts.
  • the jacket of the first air duct is preferably surrounded by, for example, only 1 to 2 cm thick layer, for example, of zeolite granules.
  • the sorption device may also have only on one side adjacent or not fully in the vicinity or contact air ducts.
  • the sorption device consists essentially of structures which surround one another in a mantel-shaped manner, the supply air (process air) being supplied through an outer air duct, which preferably widens in the manner of a diffuser 73 to form the second air duct.
  • the inner region is preferably located coaxially in the second air duct another pipe, which forms the first air duct and which is fluidly connected by the shell-side openings arranged with the outer, second air duct.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Drying Of Gases (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

L'invention concerne un dispositif de sorption (14) et un appareil ménager pourvu d'un dispositif de sorption et d'une chambre de traitement (3) pour les articles ménagers à sécher, en particulier du linge. Le dispositif de sorption présente un premier canal de guidage d'air (18) et un deuxième canal de guidage d'air (19), lesquels forment au moins une zone de superposition (16) dans laquelle une paroi (22) du premier canal de guidage d'air (18) et une paroi (24) du deuxième canal de guidage d'air (19) sont adjacentes, et une couche de sorbant (26), laquelle peut être traversée par un air de traitement (46). Afin de pouvoir augmenter la vitesse de sorption ou de désorption et de réguler la température d'entrée de l'air de traitement dans la chambre de traitement (3) avec précision à une température théorique souhaitée, au moins une possibilité de passage (36) est présente dans la zone de superposition (16) entre les parois adjacentes des canaux, de telle manière que l'air de traitement (37) peut s'écouler d'un des canaux de guidage d'air dans l'autre canal de guidage d'air (18, 19) en traversant la couche de sorbant (26).
EP13805410.1A 2012-12-19 2013-12-16 Dispositif de sorption pur appareil domestique et appareil domestique avec celui-ci Not-in-force EP2935685B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13805410T PL2935685T3 (pl) 2012-12-19 2013-12-16 Urządzenie sorpcyjne do sprzętu gospodarstwa domowego oraz sprzęt gospodarstwa domowego z takim urządzeniem sorpcyjnym

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012223776.3A DE102012223776A1 (de) 2012-12-19 2012-12-19 Sorptionsvorrichtung für ein Haushaltsgerät sowie entsprechendes Haushaltsgerät
PCT/EP2013/076726 WO2014095738A1 (fr) 2012-12-19 2013-12-16 Dispositif de sorption d'appareil ménager, et appareil ménager équipé d'un dispositif de sorption

Publications (2)

Publication Number Publication Date
EP2935685A1 true EP2935685A1 (fr) 2015-10-28
EP2935685B1 EP2935685B1 (fr) 2017-02-22

Family

ID=49765530

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13805410.1A Not-in-force EP2935685B1 (fr) 2012-12-19 2013-12-16 Dispositif de sorption pur appareil domestique et appareil domestique avec celui-ci

Country Status (5)

Country Link
EP (1) EP2935685B1 (fr)
CN (1) CN104870709B (fr)
DE (1) DE102012223776A1 (fr)
PL (1) PL2935685T3 (fr)
WO (1) WO2014095738A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3875018A1 (fr) 2020-03-04 2021-09-08 BSH Hausgeräte GmbH Système de conduite d'air comprenant un adsorbeur, appareil ménager comprenant un système de conduite d'air et procédé de fonctionnement d'un appareil ménager

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DE102015206331A1 (de) * 2015-04-09 2016-10-13 Illinois Tool Works Inc. Als Programmautomat ausgeführte gewerbliche Spülmaschine sowie Verfahren zum Betreiben einer solchen Spülmaschine
DE102015107036A1 (de) * 2015-05-06 2016-11-10 Miele & Cie. Kg Waschtrockner und Verfahren zum Betreiben eines Waschtrockners
DE102015107063A1 (de) * 2015-05-06 2016-11-10 Miele & Cie. Kg Waschtrockner und Verfahren zum Betreiben eines Waschtrockners
CN106192285B (zh) * 2015-05-07 2019-09-10 海信（山东）冰箱有限公司 一种滚筒式洗衣机
DE102015211210A1 (de) * 2015-06-18 2016-12-22 BSH Hausgeräte GmbH Geschirrspülmaschine mit einer Sorptionstrocknungseinrichtung
DE102015211193A1 (de) * 2015-06-18 2016-12-22 BSH Hausgeräte GmbH Geschirrspülmaschine mit einer Sorptionstrocknungseinrichtung
DE102015211197A1 (de) * 2015-06-18 2016-12-22 BSH Hausgeräte GmbH Geschirrspülmaschine mit einer Sorptionstrocknungseinrichtung
EA201891288A1 (ru) * 2015-12-23 2019-01-31 Зендер Груп Интернэшнл Аг Устройство регулирования температуры и пристенное устройство с таким устройством регулирования температуры
CN106968090B (zh) * 2016-01-14 2020-12-01 博西华电器（江苏）有限公司 干衣机
DE102016103921A1 (de) * 2016-03-04 2017-09-07 Miele & Cie. Kg Geschirrspülmaschine
DE102019207554B4 (de) * 2019-05-23 2021-07-22 BSH Hausgeräte GmbH Haushaltsgeschirrspülmaschine und Verfahren zum Betreiben einer Haushaltsgeschirrspülmaschine

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DE19718047A1 (de) * 1997-04-29 1998-11-05 Behr Gmbh & Co Vorrichtung zum Senken der Luftfeuchtigkeit in einem Fahrgastraum eines Kraftfahrzeugs
FR2879431B1 (fr) * 2004-12-21 2008-12-05 Brandt Ind Sas Lave-vaisselle et procede de mise en oeuvre du sechage de la vaisselle dans ce lave-vaisselle
DE102007031481A1 (de) 2007-07-06 2009-01-08 BSH Bosch und Siemens Hausgeräte GmbH Waschtrockner
DE102008032228B4 (de) 2008-07-09 2019-02-14 Hobart Gmbh Verfahren zum Regenerieren eines Sorptionsmittels
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DE102010002086A1 (de) 2010-02-18 2011-08-18 BSH Bosch und Siemens Hausgeräte GmbH, 81739 Trockner mit Adsorbereinheit sowie Verfahren zu seinem Betrieb
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3875018A1 (fr) 2020-03-04 2021-09-08 BSH Hausgeräte GmbH Système de conduite d'air comprenant un adsorbeur, appareil ménager comprenant un système de conduite d'air et procédé de fonctionnement d'un appareil ménager

Also Published As

Publication number Publication date
CN104870709A (zh) 2015-08-26
DE102012223776A1 (de) 2014-06-26
CN104870709B (zh) 2016-11-16
PL2935685T3 (pl) 2017-08-31
EP2935685B1 (fr) 2017-02-22
WO2014095738A1 (fr) 2014-06-26

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