EP1272091A2 - Verfahren zur reinigung mit reinigungsstrahlen - Google Patents
Verfahren zur reinigung mit reinigungsstrahlenInfo
- Publication number
- EP1272091A2 EP1272091A2 EP01938057A EP01938057A EP1272091A2 EP 1272091 A2 EP1272091 A2 EP 1272091A2 EP 01938057 A EP01938057 A EP 01938057A EP 01938057 A EP01938057 A EP 01938057A EP 1272091 A2 EP1272091 A2 EP 1272091A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning
- liquid
- gas
- valve
- pressure
- 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
- 238000004140 cleaning Methods 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 54
- 239000007788 liquid Substances 0.000 claims description 92
- 239000000654 additive Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 abstract description 3
- 239000007921 spray Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 235000021190 leftovers Nutrition 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
- B05B7/26—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device
- B05B7/262—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device a liquid and a gas being brought together before entering the discharge device
- B05B7/267—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device a liquid and a gas being brought together before entering the discharge device the liquid and the gas being both under pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- 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
- A47L2601/00—Washing methods characterised by the use of a particular treatment
- A47L2601/03—Pressurised, gaseous medium, also used for delivering of cleaning liquid
Definitions
- the invention relates to a method for cleaning with cleaning jets.
- cleaning jets from a nozzle, a plurality or a plurality of nozzles of an arrangement for conveying cleaning liquid for application, e.g. a surface to be cleaned is emitted of goods to be cleaned.
- a sufficient cleaning result is in such an exposure to the goods to be cleaned by the amount of chemical additives that can be added to the cleaning liquid, but mainly by a sufficient duration of exposure to the goods to be cleaned with the pulse of the cleaning jet and the resulting over the period of time mechanical removal of dirt on the items to be cleaned is achieved.
- the invention is therefore based on the object of providing a method for cleaning with cleaning jets in which energy can be saved and the duration of the cleaning program can be shortened.
- This object is achieved in that a cleaning liquid is pressurized with a pressurized gas before exiting and is thereby additionally accelerated, as a result of which the cleaning liquid has a higher momentum after exiting.
- the intensity of the mechanical removal on the surface of the material to be cleaned is inevitably increased, ie the effectiveness of the cleaning jet is improved, as a result of which, as explained at the outset, an adequate cleaning result mainly due to an adequate Duration of exposure to the goods to be cleaned and the mechanical removal of dirt on the goods to be cleaned over the period of time, the duration of the cleaning program shortened and thus less energy is required to promote the cleaning liquid.
- the method according to the invention furthermore saves a considerable amount of cleaning liquid.
- the invention provides a method for cleaning with cleaning jets of the type mentioned at the beginning, in which energy can be saved and the duration of the cleaning program can be shortened.
- the gas is blown into a flowing or standing cleaning liquid.
- the application according to the invention can be optimized in accordance with the desired cleaning process by selecting one of the variants shown.
- the gas is blown in continuously or intermittently.
- the method according to the invention can also be further optimized in accordance with the desired cleaning process by selecting one of the variants shown.
- the gas is blown in with or without additives. Even a separate addition of additives, e.g. Cleaning agents etc. can be saved.
- the method is used in household appliances and in a particularly advantageous manner in dishwashers.
- the method has been shown that by increasing the effect of the cleaning jet with the method according to the invention in household appliances, in particular in dishwashers, particularly good cleaning results are achieved.
- Show it 1 is a schematic representation of an apparatus for performing the method according to the invention according to a preferred embodiment of the invention
- Fig. 2 is a schematic representation of a household dishwasher with the device for performing the preferred embodiment of the invention
- Fig. 3 shows the time course of a spray pulse according to a preferred embodiment of the invention.
- a device 1 for conveying liquids according to the cycle plug method in the exemplary embodiments shown and described has an arrangement 10 in which the liquid is pressurized by a gas under pressure, the liquid in the arrangement 10 being pressurized by the gas , which is alternately changed between two pressure levels so that the liquid flows in at a low pressure level and is conveyed in the desired conveying direction by applying the higher pressure level.
- the gas is pressurized by means of a compressor 2.
- a pressure vessel 4, into which the gas is introduced and stored, is connected to the compressor 2 in the flow direction of the gas after the compressor 2, that is to say at a pressure outlet 3 of the compressor 2.
- the arrangement 10 has a pressure chamber 11 which is connected to a liquid container 9 in a liquid-conducting manner.
- the gas controlled by a valve 5, is introduced into the pressure chamber 11.
- This valve 5 for controlling the introduction of the gas into the pressure chamber 11 is in a connecting line 21 between the pressure vessel 4 and an inlet 20 of the gas arranged in the pressure chamber 11.
- a liquid discharge line 12 is connected in a liquid-conducting manner to the pressure chamber 11 and the liquid container 9.
- a liquid line 13 is continued from the liquid container 9 to the liquid drain 12 and has a branch 14 to the pressure chamber 11.
- a valve 15 for opening and closing the connection between the liquid container 9 and the pressure chamber 11 is arranged, which in the exemplary embodiment is a check valve with a spherical closing body, which has a liquid outlet from the liquid container 9 when a against the Liquid container 9 closes directed flow.
- a valve 16 for opening and closing the liquid discharge line 12 which in the exemplary embodiment is a check valve with a spherical closing body, which closes the liquid discharge line 12 when a flow directed against the liquid container 9 or against the pressure chamber 11 occurs
- the pressure chamber 11 has a further inlet 18 which is controlled by a valve 17 and to which a ventilation line 19 is connected.
- the inlet 20 of the gas into the pressure chamber 11 in the position of use that is to say from a frontal view of FIGS. 1 and 2, at the top and the inlet of the liquid line 13, ie the branch 14, is arranged at the bottom.
- the arrangement 10 has a connection 23 between the pressure chamber 11 and a suction line 7 of the compressor 2, the suction line 7 of the compressor 2 in the flow direction of the gas after the branching for the connection 23 to the valve 17 and further to a valve 17 controlled inlet 20 of the pressure chamber 11 has a further valve 8 for opening or closing the suction line 7 with respect to the environment.
- the liquid is pressurized by the gas with a pressure which changes so alternately between two pressure levels is that the liquid flows in at a low pressure level and is conveyed in the desired conveying direction by applying the higher pressure level.
- the arrangement 10 at the low pressure level veau there is a negative pressure so that the liquid is sucked in and there is an excess pressure when the higher pressure level is applied.
- connection with a suction line 7 of the compressor 2 it is of course also possible to generate the required negative pressure with an additional compressor and to connect this to the connection 23.
- the arrangement 10 has a connection 22 between the liquid drain 12 and the pressure vessel 4.
- a further valve 6 for controlling the introduction of the gas into the liquid discharge line 12 is arranged in the connection 22.
- Valves 5, 6, 8 and 16 are initially closed, valves 15 and 17 are open.
- the connection between the liquid container 9 and the pressure chamber 11 is arranged below the liquid level N1 of the liquid container 9, so that the liquid in the liquid container 9 to the liquid level N1 and in the pressure chamber 11 due to the suction function of the negative pressure described below to the much higher Liquid level N1 'extends.
- the valve 5 By opening the valve 5, the gas under pressure is introduced into the pressure chamber 11, whereby the liquid is displaced to a lower liquid level N2.
- the valve 15 is closed and the valve 16 is opened so that the liquid penetrates further into the liquid discharge line 12, an equal amount of liquid being moved from the liquid discharge line 12 to the corresponding liquid consumer.
- the cleaning liquid is pressurized with a gas under pressure before it emerges and is thereby additionally accelerated, as a result of which the liquid has a higher momentum after the outlet.
- the application of the flowing cleaning liquid is selected.
- the valve 5 is now closed and the further valve 6 for controlling the introduction of the gas into the liquid discharge line 12 is opened - or it can, in reverse order, first the further valve 6 for controlling the introduction of the gas opened in the liquid discharge line 12 and then the valve 5 are closed - whereby the gas is passed into the liquid discharge line 12 in both alternative method steps and the pressurized cleaning liquid is pressurized according to the invention, whereby the cleaning liquid according to the invention is additionally accelerated and the Liquid has a higher momentum after the leak. Furthermore, the liquid located in the liquid discharge line 12 is pressed again, so that liquid is again moved to corresponding liquid consumers.
- valve 16 and also the valve 6 and the valve 8 are now closed and the valve 17 is opened, as a result of which the gas located in the pressure chamber 11 is passed to the compressor 2 via the ventilation line 19 and the suction line 7 and a negative pressure is created in the pressure chamber 11. Due to the negative pressure or, in the event that the valve 15 is not a non-return valve, external control now opens the valve 15, so that liquid is sucked into the pressure chamber 11 from the liquid container 9 by the negative pressure prevailing in the pressure chamber 11. The valve 16 is held in the closed position. Now valve 17 is closed and at the same time valve 8 is opened again. This process is now repeated as long as fluid delivery is required.
- FIG. 2 describes a dishwasher 25, in the exemplary embodiment shown a household dishwasher, in which the cycle plug method and the method according to the invention for cleaning with cleaning jets are carried out with a device 1 in the preferred embodiment shown and described in FIG. 1.
- the gas air and the liquid is a cleaning liquid with which the items to be cleaned in the dishwasher 25 are charged, namely water, which may be mixed with detergents or rinse aids and, if appropriate, also with removed ones Leftovers are dirty.
- the liquid container 9 of the device 1 is formed by the lowermost section of a washing container 26, which is usually referred to as a pump pot or drain pan and in which the items to be cleaned, for example cutlery, not shown, which are filled into crockery baskets 27, 28, Plates plates, cups, glasses etc., collecting cleaning liquid.
- the cleaning liquid is applied to the material to be cleaned by spray devices, for example so-called spray arms 29, 30.
- the cleaning liquid in the arrangement shown and described in FIG. 2 is conveyed by means of the device 1, as described for FIG. 1, into the liquid discharge line 12 connected to the feed lines to the spray arms 29, 30 and before it emerges from nozzles not described in any more detail the spray arms 29, 30 in the liquid discharge line 12, according to the inventive method, acted upon by a gas under pressure.
- FIG. 3 The course of time in connection with the cycle plug method of a spray pulse generated with the preferred exemplary embodiments of the method according to the invention shown in FIGS. 1 and 2 is shown in FIG. 3, FIG. 3 showing the course of time and the water pressure generated from the time of the Opening the valve 17 for sucking the cleaning liquid into the pressure chamber 11 shows.
- the suction period is designated by Ts in FIG. 3 and is approximately one second. Now a pause is made over a period Tp of about half a second.
- the gas could also be blown into a standing cleaning liquid by the method according to the invention.
- the inventive can also be driven with an intermittently blown gas. Addition of additive to the gas is also possible using the method according to the invention.
- the intensity of the mechanical removal on the surface of the material to be cleaned is inevitably increased, i.e. improves the effectiveness of the cleaning jet, which, because a sufficient cleaning result is mainly achieved by a sufficient duration of exposure to the goods to be cleaned and the mechanical removal of dirt on the goods to be cleaned over the period of time, shortens the duration of the cleaning program and so that less energy is required to convey the cleaning liquid.
- the process according to the invention furthermore saves a considerable amount of cleaning liquid.
- a method for cleaning with cleaning jets of the type mentioned is created, in which energy can be saved and the duration of the cleaning program can be shortened.
Landscapes
- Cleaning By Liquid Or Steam (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Washing And Drying Of Tableware (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Detergent Compositions (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10017240 | 2000-04-06 | ||
| DE10017240A DE10017240A1 (de) | 2000-04-06 | 2000-04-06 | Verfahren zur Reinigung von Reinigungsstrahlen |
| PCT/EP2001/003484 WO2001076446A2 (de) | 2000-04-06 | 2001-03-27 | Verfahren zur reinigung mit reinigungsstrahlen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1272091A2 true EP1272091A2 (de) | 2003-01-08 |
| EP1272091B1 EP1272091B1 (de) | 2006-06-21 |
Family
ID=7637863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01938057A Expired - Lifetime EP1272091B1 (de) | 2000-04-06 | 2001-03-27 | Verfahren zur reinigung mit reinigungsstrahlen |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1272091B1 (de) |
| AT (1) | ATE330532T1 (de) |
| AU (1) | AU6381801A (de) |
| DE (2) | DE10017240A1 (de) |
| ES (1) | ES2266202T3 (de) |
| TR (1) | TR200400338T4 (de) |
| WO (1) | WO2001076446A2 (de) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1338607A (en) * | 1971-06-12 | 1973-11-28 | Kingsdown Instr Co Ltd | Apparatus for dispensing a predetermined and variable volume of liquid |
| DE3916446A1 (de) * | 1988-06-14 | 1990-03-15 | Autobahnbaukombinat Veb | Verfahren und vorrichtung zur bearbeitung von festen stoffen mittels druckwasserstrahl |
| JP3504023B2 (ja) * | 1995-05-26 | 2004-03-08 | 株式会社ルネサステクノロジ | 洗浄装置および洗浄方法 |
| JP3315611B2 (ja) * | 1996-12-02 | 2002-08-19 | 三菱電機株式会社 | 洗浄用2流体ジェットノズル及び洗浄装置ならびに半導体装置 |
| DE19750265A1 (de) * | 1997-11-13 | 1999-05-20 | Miele & Cie | Verfahren zum Reinigen von Geschirr in einer Geschirrspülmaschine und Vorrichtung zur Durchführung des Verfahrens |
-
2000
- 2000-04-06 DE DE10017240A patent/DE10017240A1/de not_active Withdrawn
-
2001
- 2001-03-27 DE DE50110259T patent/DE50110259D1/de not_active Expired - Lifetime
- 2001-03-27 AU AU63818/01A patent/AU6381801A/en not_active Abandoned
- 2001-03-27 TR TR2004/00338T patent/TR200400338T4/xx unknown
- 2001-03-27 WO PCT/EP2001/003484 patent/WO2001076446A2/de not_active Ceased
- 2001-03-27 EP EP01938057A patent/EP1272091B1/de not_active Expired - Lifetime
- 2001-03-27 AT AT01938057T patent/ATE330532T1/de not_active IP Right Cessation
- 2001-03-27 ES ES01938057T patent/ES2266202T3/es not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0176446A3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1272091B1 (de) | 2006-06-21 |
| DE50110259D1 (de) | 2006-08-03 |
| ATE330532T1 (de) | 2006-07-15 |
| AU6381801A (en) | 2001-10-23 |
| WO2001076446A3 (de) | 2002-04-04 |
| WO2001076446A2 (de) | 2001-10-18 |
| TR200400338T4 (tr) | 2004-03-22 |
| ES2266202T3 (es) | 2007-03-01 |
| DE10017240A1 (de) | 2001-10-11 |
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