EP0000942A1 - Dispositif de traitement de l'eau pour lave-vaisselle - Google Patents
Dispositif de traitement de l'eau pour lave-vaisselle Download PDFInfo
- Publication number
- EP0000942A1 EP0000942A1 EP78100730A EP78100730A EP0000942A1 EP 0000942 A1 EP0000942 A1 EP 0000942A1 EP 78100730 A EP78100730 A EP 78100730A EP 78100730 A EP78100730 A EP 78100730A EP 0000942 A1 EP0000942 A1 EP 0000942A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- tank
- water
- brine
- treatment
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 239000012267 brine Substances 0.000 claims abstract description 33
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 33
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 230000008929 regeneration Effects 0.000 claims abstract description 6
- 238000011069 regeneration method Methods 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims description 18
- 238000005192 partition Methods 0.000 claims description 13
- 239000004902 Softening Agent Substances 0.000 claims description 3
- 230000001172 regenerating effect Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 3
- 239000008400 supply water Substances 0.000 claims 1
- 238000004851 dishwashing Methods 0.000 abstract description 3
- 150000003839 salts Chemical class 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002991 molded plastic Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical class [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- A47L15/4229—Water softening arrangements
Definitions
- the invention relates to water treatment devices for dishwashers, for example for water softening, in such a way that a relatively small amount of water treatment agent is regenerated as part of each operating cycle of the machine.
- Such equipped dishwashers are known and with a small container for the water treatment agent, such as. B. for an ion exchange resin, and with a container for salt, which is used to form a brine solution, which in turn is used to regenerate the treatment agent.
- a quantity of water is allowed to flow through the salt tank, and that resulting brine flows through the water treatment agent to regenerate it, thereby preparing the agent for washing and rinsing in the machine. This typically takes place towards the end of the flushing, as a result of which the treatment agent is regenerated for the next operating cycle.
- a number of pipes, hoses, etc., and connections are required to direct the flow of liquid through the various containers and into the machine.
- the object on which the invention is based is to create a simplified water treatment device which can be installed in a dishwasher, occupies a minimum of space and minimizes the number of connections subjected to pressure and thus works reliably and utilizes the available space.
- the water treatment device for a dishwasher, in which untreated water is introduced through a treatment agent in a treatment tank during the washing processes and in a brine tank for regenerating the treatment agent, is characterized in that a chamber part unit of limited capacity and narrow thickness is attached to a wall of the dishwasher tank , has a vent at its top as anti-siphon protection, and a first chamber which has an outlet into the tank at its bottom and an inlet near the bottom of the treatment tank, a second chamber which has an inlet near it having its upper surface for receiving untreated water and an outlet at its bottom to the processing tank through, and a third chamber having en- tank an inlet for receiving untreated water and near its bottom an outlet for Salzlau g near its upper side contains, said second and di e third chamber overflow openings into the first chamber below the ventilation opening.
- the invention it is possible to design a water treatment system which can be uniformly adapted to the many different types of water supplies to which the machines can be attached.
- the water available can have different contaminants (or different amounts of contaminants).
- the water can have a higher concentration of materials, dissolved salts of calcium and / or magnesium, which produce a "hard" water. Therefore, the water treatment requirements of the system can vary for any given installation and the system must therefore be easily adjustable to suit the particular conditions of the particular installation of the machine.
- the invention further provides a simple adjustment system whereby the amount of untreated water available to form brine for regeneration is always supplied with a simple, timer-controlled valve arrangement, and this amount of water can be partly to the salt container and partly to the drain or sewer line connection of the machine be judged.
- a simple diverter mechanism which can be adjusted by a technician or even by the user of the machine, is provided to change the amount of water diverted from the salt container and thereby directly control the amount of brine produced which flows through the water treatment agent during the regeneration process .
- the brine used to regenerate the water treatment agent is a corrosive substance, especially if it is allowed to evaporate on metal surfaces. There is experience with corrosion damage to various metal dishwasher containers, where those for the regeneration brine is not rinsed off from the tank surfaces everywhere.
- the invention ensures that the brine is only fed into the dishwashing container when the water rinse soon follows.
- a chamber of limited capacity and a relatively narrow thickness is attached to a wall of the container of the dishwasher.
- This chamber or compartment can be made in a conventional manner from molded plastic.
- it is formed from plastic sheet parts that are heated, vacuum formed into the desired shapes, and connected.
- the chamber part has such a narrow thickness that it fits in the space between the wall of the dishwasher and the surrounding cabinet. The chamber part therefore does not protrude into the areas surrounding the machine and thus does not increase the standard size of the machine, which in practice remains within certain industrially guaranteed dimensions.
- a rocker is arranged below the end of the filling line for untreated or filling water and above a partition between the washing chamber and a passage in such a way that in one position of the rocker, the filling water is fed directly to the washing chamber and in the other position of the rocker, the filling water is first passed through the softener and then to the washing chamber.
- a controllable rocker for deflecting untreated water is arranged directly above or above the partition wall between the one passage and the washing chamber or via the tank with the softening agent into the washing chamber. In this way, the untreated water supplied can be fed directly into the washing chamber without passing through the softener in one position, while the untreated water can be fed to the tank with the softening agent in the other position of the rocker.
- the chamber part is designated 10. It can be formed from two molded plastic parts, which are generally symmetrical and are attached by a suitable cement or heat welding arrangement.
- the part is provided with an outlet connection 14 which passes through an opening with the container wall 12 of the dishwasher, and a threaded fastening device 15 is attached to the connection on the inside of the container wall which fastens the chamber part.
- Another fastening device 15 is located near the top of the chamber part, which comprises the adjusting parts of the deflection device, which will be described below.
- the supply of untreated water is shown by line 20, which separates into two supply lines 21 and 22, in which electrically operated valves 23 and 24 are arranged.
- the chamber part is provided with a ventilation opening 25 on its upper side, which is common to all compartments in the chamber part 10 and provides the necessary anti-siphon arrangement.
- the part 10 is provided with a first or inlet passage 26 which leads from the floor in connection with the valve 23 to the top of the part 10 and via a partition 27. Untreated water fills the passage 26 up to the partition 27, and when the valve 23 is opened, water falls through another passage 28 to the bottom of the part 10 and through a connecting pipe 30 into the outer tank 32 containing the water treatment agent.
- the treated water thus flows into the bottom of a chamber 35, which is separated from the passage 28 by a vertically extending partition 36, and then through the outlet port 14, through which the treated water enters the tank of the dishwasher.
- the partition 36 extends near the top of the chamber portion under the partition 27.
- untreated water flowing in can fill the passage 28 and flow over the top of the partition 36 and thus flow directly to the outlet port 14. This overflow is of course located under the vent opening 25, so that the anti-siphon arrangement is also effective under this condition.
- a second inlet passage 40 which is connected from the bottom to the valve part 24 and the line 22.
- the passage 40 also extends to the top of the chamber part 10. It is separated by the partition 41 from a further chamber 45, and a further partition 46 separates the chambers 35 and 45. Under operating conditions, the passage 40 is filled to the top with previously supplied water .
- a fixed amount of untreated water is introduced through the opening valve 24 for a predetermined time. If e.g. the valve 24 allows a flow of between 5 and 6 1 per minute, opening the valve allows a quantity of 0.6 to 0.7 1 water for about 7 seconds. This water flows through the passage 40 into an area 48 above the chamber 45 and directly over the upper end of the partition wall 46, on which a short wall 50 is attached.
- An adjustable deflecting part 52 is attached in this area. It has a first vane section 54, also shown in FIG. 4, which cuts or traverses the water flow from the passage 40 depending on the position of the deflecting member, and creates the possibility that part of the flow will fall into the chambers 45 .
- the other part of this flow is led over the deflection part and over its guide vane 55, and falls directly into the chamber 35 and from there to the outlet connection 14.
- the valve 24 exits a fixed amount of untreated water is open for a certain time, more or less of this amount of water flows into the chamber 45 depending on the set position of the deflecting part 52, depending on the position of the deflector 52.
- the bottom of chamber 45 is connected by pipe 57 to saline tank 58, which contains a lot of salt.
- the resulting brine which is formed by the untreated water, is allowed to flow into the treatment tank 32 through a pipe 59 and a check valve 60 to regenerate the treatment agent.
- This treatment agent washing can result in a flow through line 33 to the bottom of chamber 35, but the amount of brine flowing is so small that there is no brine overflow through outlet port 14.
- the brine remains in the tank 32 until another wash cycle of the machine.
- the valve 23 is opened for a while to pass untreated water through the passages 26 and 28 and the brine out of the tank 32 and through the connection 14 into the Forcing the dishwasher tank into it.
- the dishwasher (not shown) drain is held open at this moment and the brine flows out of the machine.
- the spent brine flow is followed by treated water which passes through the regenerated agent, and the drain is then closed to fill the dishwasher tank to begin the wash cycle. Any small amount of brine remaining in the tank is thus instantly diluted and washed away from the tank wall so that corrosion is avoided.
- the deflector is also provided with a blade part 62 which extends from the blade 55 on the opposite string of the wall 50. If any passage is blocked starting with line 57, water collecting in chamber 45 may flow into chamber 35 via wall 50, and then exit through the outlet port. Water in passage 28 and in chambers 35 and 45 cannot be above level 14a. This further creates a continuous connection of the top of the chamber 45 to the vent 25, which is why the pressure on the brine tank 58 is only the pressure of the amount of water that accumulates in the chamber 45 during the above-mentioned operations.
- FIG. 3 and 4 illustrate details of the deflecting part and its position.
- the deflector has a cylindrical base 64 which receives the end of a molded or cast plastic cylinder 65, these two parts being held together by a suitable screw 66.
- a stationary cylinder part 68 is fitted through an opening in the top of the partition 12 (FIG. 2) and is held in place by the threaded fastening part 15. As a result, the upper end of the chamber part 10 is attached.
- the outer end of the cylinder 65 has a flange 70 which engages a sealing ring 71 to prevent water from leaking into the dishwasher tank at this point.
- a notch 72 On the surface of the flange there is a notch 72 which provides a display with which a series of display notches 73 cooperate on the part 68, whereby the user has an indication of the position of the deflection part 52.
- the device according to FIG. 5 is constructed essentially the same as shown in FIG. 1, so that comparable parts are provided with the same, but with a / provided reference numerals and are not described again.
- Untreated water or filling water flows through the filling valve 23 'through the line 26' via the rocker 3 in line 4 directly into the washing chamber 35 '.
- This position I there is no softening of the untreated or fill water.
- the rocker 3 is over a rod 6 brought into position II by a spring 5, in which the filling water is passed over the softening tank 32 '.
- the pushing down of the rod 6 into the position I, in which the filling water is fed directly to the washing chamber 35 ', is carried out either by a current-operated bimetal 7 or can be controlled mechanically directly by the timer.
- the device shown in FIG. 5 provides a device with which it is possible to redirect the filling water directly to the washing chamber 35 'or only to the washing chamber 35' via the softener 32 'by means of a simple rocker 3.
Landscapes
- Washing And Drying Of Tableware (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19772739145 DE2739145A1 (de) | 1977-08-31 | 1977-08-31 | Geraet zum wasserenthaerten fuer geschirrspuelmaschinen |
| DE2739145 | 1977-08-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0000942A1 true EP0000942A1 (fr) | 1979-03-07 |
| EP0000942B1 EP0000942B1 (fr) | 1981-09-23 |
Family
ID=6017717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19780100730 Expired EP0000942B1 (fr) | 1977-08-31 | 1978-08-23 | Dispositif de traitement de l'eau pour lave-vaisselle |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0000942B1 (fr) |
| DE (1) | DE2739145A1 (fr) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2516070A1 (fr) * | 1981-11-11 | 1983-05-13 | Bosch Siemens Hausgeraete | Adoudoucisseur d'eau pour appareils menagers, notamment pour lave-vaiselle |
| FR2561095A1 (fr) * | 1984-03-13 | 1985-09-20 | Balay Sa | Dispositif d'alimentation et de distribution d'eau pour lave-vaisselle |
| EP0205787A1 (fr) * | 1985-06-26 | 1986-12-30 | Bosch-Siemens HausgerÀ¤te GmbH | Machine à laver la vaisselle |
| EP0435119A1 (fr) * | 1989-12-22 | 1991-07-03 | MERLONI ELETTRODOMESTICI S.p.A. | Adoucisseur d'eau pour machine à laver |
| EP0570872A1 (fr) * | 1992-05-16 | 1993-11-24 | AWECO Kunststofftechnik Gerätebau GmbH & Co. KG | Adoucisseur pour machines de ménage à laver la vaisselle |
| EP0779056A3 (fr) * | 1995-12-11 | 1999-03-24 | TECNOPLASTICA PREALPINA S.p.A. | Alimentation en liquide de lavage et dispositif de dosage dans une machine à laver la vaisselle |
| EP1120080A3 (fr) * | 2000-01-28 | 2002-08-14 | BITRON S.p.A. | Dispositif de régulation pour adoucisseur d'eau |
| EP1161916A3 (fr) * | 2000-06-10 | 2002-09-25 | AEG Hausgeräte GmbH | Appareil domestique utilsant de l'eau et procédé pour ajuster la dureté d'une quantité d'eau fraiche |
| CN108478138A (zh) * | 2018-04-28 | 2018-09-04 | 佛山市顺德区海伦宝电器有限公司 | 一种洗碗机呼吸器的双水路结构 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2851076C2 (de) * | 1978-11-25 | 1984-05-03 | Schrott, Hugo, 7995 Neukirch | Einrichtung zum Regenerieren des Ionenaustauschers einer Geschirrspülmaschine |
| DE2929579C2 (de) * | 1979-07-21 | 1984-05-17 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Wasserzulaufvorrichtung für Geschirrspülmaschinen |
| DE2947410C2 (de) * | 1979-11-24 | 1983-09-15 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Enthärtungseinrichtung, insbesondere für Geschirrspülmaschinen |
| WO2020062849A1 (fr) * | 2018-09-29 | 2020-04-02 | 佛山市顺德区美的洗涤电器制造有限公司 | Dispositif de séchage pour lave-vaisselle, et lave-vaisselle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH513773A (de) * | 1970-07-20 | 1971-10-15 | Holzer Patent Ag | Einrichtung zum selbsttätigen Regenerieren von Ionenaustauschern |
| DE1728234A1 (de) * | 1968-09-14 | 1972-03-09 | Bosch Hausgeraete Gmbh | Geschirrspuelmaschine |
| DE2417731A1 (de) * | 1974-04-11 | 1975-10-30 | Aweco App & Geraetebau Kg | Vorrichtung zur rueckflussverhinderung, insbesondere fuer wasserenthaertungseinrichtungen |
| FR2298308A1 (fr) * | 1975-01-25 | 1976-08-20 | Euro Hausgeraete Gmbh | Dispositif d'admission d'eau et de ventilation pour un lave-vaisselle ou appareil similaire |
| GB1462952A (en) * | 1974-01-23 | 1977-01-26 | Wigley A F | Flow control valves |
| DE2544450A1 (de) * | 1975-10-04 | 1977-04-14 | Licentia Gmbh | Geschirrspuelmaschine |
| DE2545037A1 (de) * | 1975-10-08 | 1977-04-14 | Licentia Gmbh | Geschirrspuelmaschine |
| FR2336031A7 (fr) * | 1972-09-01 | 1977-07-15 | Bosch Hausgeraete Gmbh | Lave-vaisselle comportant une cuve de lavage et un echangeur d'ions |
-
1977
- 1977-08-31 DE DE19772739145 patent/DE2739145A1/de not_active Withdrawn
-
1978
- 1978-08-23 EP EP19780100730 patent/EP0000942B1/fr not_active Expired
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1728234A1 (de) * | 1968-09-14 | 1972-03-09 | Bosch Hausgeraete Gmbh | Geschirrspuelmaschine |
| CH513773A (de) * | 1970-07-20 | 1971-10-15 | Holzer Patent Ag | Einrichtung zum selbsttätigen Regenerieren von Ionenaustauschern |
| FR2336031A7 (fr) * | 1972-09-01 | 1977-07-15 | Bosch Hausgeraete Gmbh | Lave-vaisselle comportant une cuve de lavage et un echangeur d'ions |
| GB1462952A (en) * | 1974-01-23 | 1977-01-26 | Wigley A F | Flow control valves |
| DE2417731A1 (de) * | 1974-04-11 | 1975-10-30 | Aweco App & Geraetebau Kg | Vorrichtung zur rueckflussverhinderung, insbesondere fuer wasserenthaertungseinrichtungen |
| FR2298308A1 (fr) * | 1975-01-25 | 1976-08-20 | Euro Hausgeraete Gmbh | Dispositif d'admission d'eau et de ventilation pour un lave-vaisselle ou appareil similaire |
| DE2544450A1 (de) * | 1975-10-04 | 1977-04-14 | Licentia Gmbh | Geschirrspuelmaschine |
| DE2545037A1 (de) * | 1975-10-08 | 1977-04-14 | Licentia Gmbh | Geschirrspuelmaschine |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2516070A1 (fr) * | 1981-11-11 | 1983-05-13 | Bosch Siemens Hausgeraete | Adoudoucisseur d'eau pour appareils menagers, notamment pour lave-vaiselle |
| FR2561095A1 (fr) * | 1984-03-13 | 1985-09-20 | Balay Sa | Dispositif d'alimentation et de distribution d'eau pour lave-vaisselle |
| EP0205787A1 (fr) * | 1985-06-26 | 1986-12-30 | Bosch-Siemens HausgerÀ¤te GmbH | Machine à laver la vaisselle |
| EP0435119A1 (fr) * | 1989-12-22 | 1991-07-03 | MERLONI ELETTRODOMESTICI S.p.A. | Adoucisseur d'eau pour machine à laver |
| EP0570872A1 (fr) * | 1992-05-16 | 1993-11-24 | AWECO Kunststofftechnik Gerätebau GmbH & Co. KG | Adoucisseur pour machines de ménage à laver la vaisselle |
| EP0779056A3 (fr) * | 1995-12-11 | 1999-03-24 | TECNOPLASTICA PREALPINA S.p.A. | Alimentation en liquide de lavage et dispositif de dosage dans une machine à laver la vaisselle |
| EP1120080A3 (fr) * | 2000-01-28 | 2002-08-14 | BITRON S.p.A. | Dispositif de régulation pour adoucisseur d'eau |
| EP1161916A3 (fr) * | 2000-06-10 | 2002-09-25 | AEG Hausgeräte GmbH | Appareil domestique utilsant de l'eau et procédé pour ajuster la dureté d'une quantité d'eau fraiche |
| CN108478138A (zh) * | 2018-04-28 | 2018-09-04 | 佛山市顺德区海伦宝电器有限公司 | 一种洗碗机呼吸器的双水路结构 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2739145A1 (de) | 1979-03-15 |
| EP0000942B1 (fr) | 1981-09-23 |
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