EP2723934B1 - Machine à laver avec unité de filtration - Google Patents
Machine à laver avec unité de filtration Download PDFInfo
- Publication number
- EP2723934B1 EP2723934B1 EP12729137.5A EP12729137A EP2723934B1 EP 2723934 B1 EP2723934 B1 EP 2723934B1 EP 12729137 A EP12729137 A EP 12729137A EP 2723934 B1 EP2723934 B1 EP 2723934B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- reservoir
- filtration unit
- tub
- line
- 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.)
- Active
Links
- 238000001914 filtration Methods 0.000 title claims description 43
- 238000005406 washing Methods 0.000 title claims description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 103
- 239000008234 soft water Substances 0.000 claims description 46
- 239000003599 detergent Substances 0.000 claims description 45
- 239000008233 hard water Substances 0.000 claims description 31
- 239000008237 rinsing water Substances 0.000 claims description 19
- 239000000126 substance Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 10
- 150000002500 ions Chemical class 0.000 description 6
- 230000008929 regeneration Effects 0.000 description 5
- 238000011069 regeneration method Methods 0.000 description 5
- 239000012459 cleaning agent Substances 0.000 description 3
- 238000009295 crossflow filtration Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- -1 Mg++ ions Chemical class 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- 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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
Definitions
- the present invention relates to a washing machine comprising a filtration unit used for the water softening process (see US-A-20050252533 ).
- Ca ++ and Mg ++ ions that increase the hardness of water are present in the water received from the water mains and used in the washing process.
- the ions that increase water hardness join with the surfactants present in the detergent and decrease the cleaning properties of these agents thus the desired cleanliness of the laundry cannot be achieved.
- the ions that increase water hardness furthermore cause lime accumulation on components like the heater by forming deposits in hot water.
- water softening devices are used for decreasing the hardness of the washing water and for providing an effective washing.
- the water softening device comprises an ion exchanger and a salt container that provides the regeneration process to be performed by keeping the resin in salty water at the ion exchanger in the regeneration process.
- the conventional water softening devices provide an unpractical solution for the user since they need addition of salt periodically.
- the salty and hard water having excessively corrosive effect is discharged to the outside due to the regeneration of the ion exchanger and rinsing thereof at the end of regeneration. This waste water formed in regeneration processes causes rusting in the metal components of the washing machine.
- cross-flow filtration systems In the state of the art, utilization of cross-flow filtration systems is also known for decreasing the hardness of water.
- water is passed tangentially over a membrane and water is separated into two as soft and hard water.
- this type of filtration systems water has to be transferred under pressure on the membrane and capacity of producing soft water is low.
- the aim of the present invention is the realization of a washing machine wherein water is softened by means of a cross-flow filtration unit and water saving is provided.
- the washing machine realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a reservoir connected to the water inlet valve and open to atmospheric pressure, a filtration unit that provides the water to be softened by being filtered and a soft water line that transfers the soft water filtered in the filtration unit to the tub and a rinsing water line that delivers the hard water collected in the reservoir into the tub for use in the rinsing steps and a water outlet valve that is provided on this line.
- the control unit opens the water outlet valve in the laundry rinsing steps executed after the main washing program with detergent and provides the hard water collected in the reservoir to be transferred to the tub.
- the washing machine comprises the soft water line and the rinsing water line that transfer water to the tub from an inlet opening on the tub independently from the detergent dispenser.
- Water is received into the detergent dispenser and the reservoir from two separate water inlet valves, after the detergents are flushed by receiving a small amount of water into the detergent dispenser, the water inlet valve connected to the detergent dispenser is closed and water is filled into the reservoir by opening the water inlet valve connected to the reservoir.
- the water filled into the reservoir is transferred to the filtration unit for softening, here soft water and hard water are separated from each other and soft water and hard water are transferred to the tub without passing through the detergent dispenser.
- Soft water is transferred to the tub from the inlet opening in the washing steps and hard water in the rinsing steps.
- one end of the soft water line is connected to the filtration unit, the other end to the detergent dispenser and soft water is transferred to the tub through the detergent dispenser.
- a soft water valve is disposed on the soft water line and pressurized soft water is transferred to the detergent dispenser.
- the rinsing water line is connected to the detergent dispenser together with the soft water line and hard water is transferred to the tub through the detergent dispenser.
- the existing detergent dispenser connection is used for transferring hard water to the tub and utilization of a separate line is not deemed necessary.
- the hard water separated from the filtration unit in the water softening process is not discharged outside and by using in the laundry rinsing processes water saving is provided.
- the washing machine (1) comprises a tub (2) wherein the washing process is performed, at least one water inlet valve (3, 103) that provides water intake into the tub (2) from the water mains (S) to be used in the washing program, a cross-flow type filtration unit (4), functioning as "water softening device", that separates ions like Ca ++ , Mg ++ by passing water through a nanofilter (NF) thus providing the removal of the hardness of water, a soft water line (5) that provides transferring of the water removed of hardness by being filtered in the filtration unit (4) to the tub (2), a detergent dispenser (6) wherein the cleaning agents such detergents, etc. are placed, a discharge pump (7) providing water to be discharged at the end of the washing program and a control unit (8) that regulates the water softening processes and the washing programs.
- a cross-flow type filtration unit (4) functioning as "water softening device", that separates ions like Ca ++ , Mg ++ by passing water through a nanofilter (NF) thus providing
- the washing machine (1) furthermore comprises a reservoir (9) connected to the first water inlet valve (3) and open to atmospheric pressure, a supply line (10) that provides continuous circulation of water between the reservoir (9) and the filtration unit (4), transferring water to the filtration unit (4), a return conduit (11) that provides the transfer of the hard water running down from the nanofilter (NF) (not passing through) by flowing together with the substances trapped on the surface of the nanofilter (NF) in the filtration unit (4) to the reservoir (9) and a circulation pump (12) disposed on the supply line (10), providing the circulation of the water between the reservoir (9) and the filtration unit (4) and the transfer of the water in the reservoir (9) under pressure to the filtration unit (4).
- a circulation pump (12) disposed on the supply line (10), providing the circulation of the water between the reservoir (9) and the filtration unit (4) and the transfer of the water in the reservoir (9) under pressure to the filtration unit (4).
- the washing machine (1) of the present invention comprises
- the control unit (8) closes the water outlet valve (14) in the water softening process performed by circulating water between the filtration unit (4) and the reservoir (9) and in the main washing steps wherein detergent is used, thus preventing the hard water collected in the reservoir (9) from being transferred to the tub (2).
- main washing with detergent soft water is used which is produced in the filtration unit (4) and transferred to the tub (2) from the soft water line (5).
- the control unit (8) opens the water outlet valve (14) in the rinsing steps wherein detergent is not used and provides the hard water collected in the reservoir (9) to be transferred to the tub (2).
- the water removed of its hardness is transferred to the tub (2) by means of the soft water line (5) in order to be used in the main washing processes.
- the hard water leaving the filtration unit (4) is transferred to the reservoir (9) through the return conduit (11) and continues to be circulated between the filtration unit (4) and the reservoir (9) by means of the circulation pump (12).
- the ratio of hard water/soft water leaving the filtration unit (4) is approximately 5/1 - 6/1, the circulation of water between the reservoir (9) and the filtration unit (4) continues and at the end of the water softening process, the ratio of hard water/soft water becomes 1/1 approximately. If for example 2 units of water is received from the first water inlet valve (3), 1 unit of soft water leaving the filtration unit (4) is transferred to the tub (2) and 1 unit of hard water is collected in the reservoir (9). The hard water collected in the reservoir (9) is not discharged, but transferred to the tub (2) by opening the water outlet valve (14) in the rinsing steps and the laundry is rinsed.
- the washing machine (1) comprises an inlet opening (16) disposed on the tub (2) wherefrom the rinsing water line (13) is connected to the tub (2) ( Figure 1 , Figure 2 ).
- the washing machine (1) comprises the soft water line (5), one end connected to the filtration unit (4), the other end connected to the inlet opening (16) by joining with the rinsing water line (13), thus transferring the soft water received from the filtration unit (4) to the tub (2) independently from the detergent dispenser (6) ( Figure 2 ).
- the soft water line (5) and the rinsing water line (13) are joined on the inlet opening (16), in the main washing steps the soft water received from the soft water line (5) and in the rinsing steps the hard water received from the rinsing water line (13) is transferred to the tub (2).
- the first water inlet valve (3) is connected to the reservoir (9), the second water inlet valve (103) to the detergent dispenser (6), at the start of the washing program, first the second water inlet valve (103) is opened by the control unit (8) to receive water into the detergent dispenser (6) sufficient enough for flushing the detergents, for example 3 - 5 liters and the cleaning agents in the detergent dispenser (6) are flushed with the small amount of water received from outside and transferred into the tub (2).
- the second water inlet valve (103) is closed by the control unit (8), the first water inlet valve (3) is opened and water is received into the reservoir (9) for softening, the received water is softened in the filtration unit (4) and is transferred directly to the tub (2) by means of the soft water line (5) and the inlet opening (16), to be used in the main washing step.
- the hard water collected in the reservoir (9) is transferred directly to the tub (2) by means of the rinsing water line (13) and the inlet opening (16).
- one end of the soft water line (5) is connected to the filtration unit (4) and the other end to the detergent dispenser (6).
- the washing machine (1) comprises a soft water pump (15), situated on the soft water line (5) between the filtration unit (4) and the detergent dispenser (6), which provides the soft water leaving the filtration unit (4) to be pressurized and transferred to the detergent dispenser (6).
- the soft water pump (15) pressurizes the water flowing from the soft water line (5) to the detergent dispenser (6), thereby providing the cleaning agents in the detergent dispenser (6) to be effectively flushed ( Figure 4 ).
- the washing machine (1) comprises the rinsing water line (13), whereof one end is connected to the reservoir (9) and the other end to the detergent dispenser (6).
- the existing detergent dispenser (6) pathway is used for transferring hard water to the tub (2) and utilization of a separate pathway is not deemed necessary ( Figure 3 ).
- the soft water leaving the filtration unit (4) having a cross-flow type nanofilter (NF) and functioning as water softening device, is used in the main washing steps with detergent, the hard water leaving the filtration unit (4) is utilized in the rinsing steps wherein detergent is not used. Receiving additional water from the water mains (S) is not necessary for the laundry rinsing activities and water saving is provided.
- NF cross-flow type nanofilter
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Claims (6)
- Une machine à laver (1) comprenant une cuve (2), au moins une valve d'entrée d'eau (3, 103) qui permet la prise de l'eau dans la cuve (2) à partir de l'alimentation en eau (S), une unité de filtration à écoulement transversal (4) qui passe l'eau à travers un nanofiltre (NF), donc permettant l'enlèvement de la dureté de l'eau, une conduite d'eau douce (5) qui permet le transfert de l'eau, dont la dureté est enlevée, dans l'unité de filtration (4) à la cuve (2), un distributeur de détergent (6), une unité de commande (8), un réservoir (9) qui est relié à la première valve d'entrée d'eau (3) et qui est ouvert à la pression atmosphérique, une conduite d'alimentation (10) qui permet la circulation de l'eau entre le réservoir (9) et l'unité de filtration (4) et qui transfère l'eau à partir du réservoir (9) à l'unité de filtration (4), une conduite de retour (11) qui permet le transfert de l'eau dure coulant à partir du nanofiltre (NF) en écoulant avec les substances attrapées sur la surface du nanofiltre (NF) dans l'unité de filtration (4) au réservoir (9) et une pompe de circulation (12) qui est disposée sur la conduite d'alimentation (10) et qui permet la circulation de l'eau entre le réservoir (9) et l'unité de filtration (4), caractérisée par- une conduit d'eau de rinçage (13) pour le transfert de l'eau dure du réservoir (9) à la cuve (2),- une valve de sortie d'eau (14) située sur la conduite d'eau de rinçage (13) et- l'unité de commande (8) pour ouvrir la valve de sortie d'eau (14) dans les étapes de rinçage du linge et permettre le transfert de l'eau dure collectée dans le réservoir (9) à la cuve (2).
- Une machine à laver (1) selon la Revendication 1, caractérisée par une ouverture d'entrée (16) qui est disposée sur la cuve (2) par laquelle la conduite d'eau de rinçage (13) est reliée à la cuve (2).
- Une machine à laver (1) selon la Revendication 2, caractérisée en ce que l'une extrémité de la conduite d'eau douce (5) est reliée à l'unité de filtration (4) et l'autre extrémité se joint à la conduite d'eau de rinçage (13).
- Une machine à laver (1) selon l'une quelconque des revendications précédentes, caractérisée par- la première valve d'entrée d'eau (3) qui est reliée au réservoir (9),- la deuxième valve d'entrée d'eau (103) qui est reliée au distributeur de détergent (6) et- l'unité de commande (8) pour ouvrir la deuxième valve d'entrée d'eau (103) premièrement et permettre la prise de l'eau dans le distributeur de détergent (6) et pour ouvrir la première valve d'entrée d'eau (3) deuxièmement et permettre la prise de l'eau dans le réservoir (9), au début du programme de lavage.
- Une machine à laver (1) selon la Revendication 1, caractérisée en ce que une pompe d'eau douce (15) est située dans la conduite d'eau douce (5) et permet le transfert de l'eau douce sortant de l'unité de filtration (4) au distributeur de détergent (6) sous pression.
- Une machine à laver (1) selon la Revendication 5, caractérisée en ce que l'une extrémité de la conduite d'eau de rinçage (13) est reliée au réservoir (9) et l'autre extrémité est reliée au distributeur de détergent (6).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL12729137T PL2723934T3 (pl) | 2011-06-27 | 2012-06-22 | Pralka z jednostką filtrującą |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TR2011/06342A TR201106342A1 (tr) | 2011-06-27 | 2011-06-27 | Filtreleme ünitesi içeren bir çamaşır makinası. |
PCT/EP2012/062156 WO2013000839A1 (fr) | 2011-06-27 | 2012-06-22 | Machine à laver avec unité de filtration |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2723934A1 EP2723934A1 (fr) | 2014-04-30 |
EP2723934B1 true EP2723934B1 (fr) | 2015-11-25 |
Family
ID=46331330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12729137.5A Active EP2723934B1 (fr) | 2011-06-27 | 2012-06-22 | Machine à laver avec unité de filtration |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2723934B1 (fr) |
PL (1) | PL2723934T3 (fr) |
TR (1) | TR201106342A1 (fr) |
WO (1) | WO2013000839A1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TR201719563T4 (tr) * | 2013-05-08 | 2018-01-22 | Arcelik As | Filtreleme ünitesi içeren bir çamaşır makinası. |
CN104790181B (zh) * | 2013-10-16 | 2017-09-01 | 无锡艾科瑞思产品设计与研究有限公司 | 一种节水洗衣机 |
CN105063967B (zh) * | 2015-08-11 | 2017-09-22 | 珠海格力电器股份有限公司 | 一种洗衣机进水口的排污装置及方法 |
CN111424407B (zh) * | 2020-03-13 | 2021-04-09 | 珠海格力电器股份有限公司 | 一种用于洗衣机的供水系统及供水方法、洗衣机 |
CN116670351A (zh) | 2021-03-22 | 2023-08-29 | 三星电子株式会社 | 包括过滤器的排水流动通道和具有排水流动通道的洗衣机 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1598467A1 (fr) | 2004-05-17 | 2005-11-23 | The Procter & Gamble Company | Procédé et dispositif pour laver |
KR100857460B1 (ko) * | 2006-03-21 | 2008-11-06 | 선남규 | 자동 재생이 가능한 연수 세탁기 |
-
2011
- 2011-06-27 TR TR2011/06342A patent/TR201106342A1/xx unknown
-
2012
- 2012-06-22 PL PL12729137T patent/PL2723934T3/pl unknown
- 2012-06-22 EP EP12729137.5A patent/EP2723934B1/fr active Active
- 2012-06-22 WO PCT/EP2012/062156 patent/WO2013000839A1/fr active Application Filing
Also Published As
Publication number | Publication date |
---|---|
TR201106342A1 (tr) | 2013-01-21 |
EP2723934A1 (fr) | 2014-04-30 |
WO2013000839A1 (fr) | 2013-01-03 |
PL2723934T3 (pl) | 2016-05-31 |
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