WO2000001624A1 - Appareil menager electrique pour purifier de l'eau de maniere discontinue ou dosee - Google Patents

Appareil menager electrique pour purifier de l'eau de maniere discontinue ou dosee Download PDF

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Publication number
WO2000001624A1
WO2000001624A1 PCT/EP1999/004473 EP9904473W WO0001624A1 WO 2000001624 A1 WO2000001624 A1 WO 2000001624A1 EP 9904473 W EP9904473 W EP 9904473W WO 0001624 A1 WO0001624 A1 WO 0001624A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
household appliance
line
ozone
receiving tank
Prior art date
Application number
PCT/EP1999/004473
Other languages
German (de)
English (en)
Inventor
Uwe Bielfeldt
Reinhard STÜCHER
Andreas Birk
Marga Lorenz
Uwe Schober
Martin Ring
Stefan Schamberg
Gerd Zetterer
Original Assignee
Braun 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 Braun Gmbh filed Critical Braun Gmbh
Priority to AU49018/99A priority Critical patent/AU4901899A/en
Publication of WO2000001624A1 publication Critical patent/WO2000001624A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C02F9/20—Portable or detachable small-scale multistage treatment devices, e.g. point of use or laboratory water purification systems
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/78—Details relating to ozone treatment devices
    • C02F2201/782—Ozone generators

Definitions

  • the invention relates to an electrically operated household appliance for the discontinuous or portionwise purification of water, with a pump for conveying water from a receiving chamber of a receiving tank, with an ozone generator for producing ozone, with an injection device communicating with a mixing chamber for mixing ozone with the water in the receiving tank and with a treatment unit through which the water flows, which contains at least one purification unit and in which components in the water are changed, removed or added.
  • Such an electrically operated household appliance for batchwise or for portionwise purification of water is known, for example, from US Pat. No. 3,726,404.
  • air is generated in an air pump, which flows through an ozone generator and is enriched with ozone in the process.
  • the air-ozone mixture thus produced flows via a line into a diffuser formed at the bottom of a receiving tank, through which finely divided air-ozone bubbles flow into the water and mix with it. Excess air-ozone mixture can escape into the atmosphere via a lid that closes the fill opening of the receiving tank, although a fitler trained in the lid retains the ozone.
  • the water cleaned by ozone gas can be pumped by a pump through an activated carbon filter, from where it, then freed from ozone gas, can flow off and be removed from a carafe placed as a tapping point below a tap .
  • an air pump and a water pump are integrated in the device.
  • both a holding tank for holding unpurified and partially cleaned water and a carafe for holding only purified water are required.
  • US Pat. No. 3,692,180 discloses an electrically operated household appliance for the discontinuous or portionwise purification of water, in which a receiving tank which can be removed from the household appliance is formed. A percolator protrudes into the receiving tank, through which an air-ozone mixture is introduced into the chamber of the receiving tank from below during a purification process, so that ozone is dissolved in the water.
  • air is pumped into an ozone blown rator, which is then enriched with ozone.
  • water can be drawn from a tap. The water only flows through an activated carbon filter when an operator requests ozone-free water.
  • This "continuous flow principle" used here for the purification of water has the disadvantage that two vessels must also be used here for storing water, namely a vessel which sits on the household appliance and can be dismantled for filling with water, and a removal vessel.
  • the vessel sitting on the household appliance receives both unpurified and ozone-enriched water after the ozone enrichment, while in the removal vessel formed underneath the tap, only fully purified, i.e. again ozone-free, water can be withdrawn after an operator has opened the tap.
  • This household appliance also belongs to a semi-automatic machine in the broader sense, ie in order to obtain purified water, an operator must first place a carafe under the tap and open it by hand. Only then does water flow relatively slowly from the tap into the dispensing vessel, since only then does the water flow through the second purification unit, namely the ozone filter.
  • the object of the invention is to provide an electrically operated household appliance for batchwise or for portion-wise purification of water which, after the purification process, provides a quantity of water which can be removed from the appliance at any time with as little effort and cost as possible. Furthermore, the handling of the household appliance is to be simplified, the manufacturing costs are to be reduced and the system is to be cleaned automatically.
  • the receiving tank serves both for receiving unpurified and after the purification process for receiving purified water, only a single receiving tank is required in the household appliance.
  • the water treatment devices are connected to the receiving tank in such a way that the water is always returned to the receiving tank. This is achieved in particular through water circulating in the system, i.e. through water cycles.
  • This arrangement also has the advantage that although the receiving tank is filled with unpurified, contaminated water at the beginning of a purification process, it is always cleaned again in the course of the purification process.
  • Zesses is namely only purified water in the receiving tank, so that since at the end of a process the purified water is still swirled in the receiving tank, the chamber is cleaned.
  • the use of only a single receiving tank according to the invention reduces the manufacturing costs and simplifies handling, since water can only be introduced or removed at one point, namely the receiving tank. Otherwise, the receiving chamber serves as a water reservoir and as a "line connection" between the inlet and outlet lines.
  • the arrangement also has the advantage that, after each purification process, the amount of water purified in portions is available to an operator as a whole.
  • the holding tank also serves as a portable carafe or as a container with which or with the non-purified water - away from the household appliance - can be obtained at a water tap.
  • the filled storage tank can then be placed on the household appliance and connected to the water cycle of the household appliance by means of certain means.
  • the means consist of a cover which closes or releases the filling opening of the receiving tank and which is penetrated by supply lines, the supply lines forming one or more water circuits with the receiving tank and the drainage lines to which the injection device connects Purification unit and other water purification devices are connected. It is advantageous if the feed lines can be moved flexibly or in some other way, for example via movable or rotatable pipe couplings, so that the lid can be removed quickly and easily from the filling opening of the receiving tank without disconnecting or removing the lines. When inserting the lid, it must again close the chamber of the receiving tank watertight and absolutely airtight, so that ozone cannot escape into the atmosphere uncontrollably during a renewed cleaning process.
  • the injection device is advantageously formed in the feed line in front of or behind the cover or directly in the cover or plug.
  • the air-ozone gas is only mixed in the vicinity of the outlet opening of the supply line, that is, in the vicinity of the point at which the water flows into the receiving tank.
  • the water flowing into the receiving tank which is already permeated with air-ozone gas, is mixed more intensively, that is to say additionally, subsequently mixed in the receiving tank. This is because the mixture flows particularly bubbly and violently as a sharp jet from the outlet opening into the receiving tank.
  • Another advantage is that by further mixing ozone gas with water in the receiving tank, the pump sucks almost only water and air containing little ozone in the form of gas bubbles, which reduces the running noise and increases the durability of the pump.
  • the outlet opening is formed above the maximum fill level in the chamber of the receiving tank. This ensures that a water jet always hits the water surface in order to achieve better mixing through better swirling (claim 5).
  • the chamber of the receiving tank also serves as a mixing chamber so that the air-ozone mixture is better mixed with the water that has not yet been purified in a shorter time.
  • the injection device is formed within the chamber of the receiving tank (claim 6) so as to use the receiving tank directly as a mixing chamber.
  • part of the air-ozone mixture which is not dissolved in the water in the chamber of the receiving tank, is led via a gas line to a fourth purification unit, namely an activated carbon filter, where the ozone gas is disposed of.
  • a fourth purification unit namely an activated carbon filter
  • the ozone gas is disposed of.
  • a pipe coupling arrangement is formed in the drain line, through which the receiving tank can be easily removed from the base of the housing without water flowing out of the drain line in an uncontrolled manner.
  • This is done by other means, namely a check valve, in the discharge line of the reached acquisition tank, which closes automatically when the receiving tank is removed from the housing base.
  • patent claim 9 propose a second embodiment (FIG. 2) in which the outlet opening of the line is arranged below the minimum fill level in the receiving tank. This ensures that even with small amounts of water in the receiving tank and still to be treated, it is always ensured that the water flowing into the chamber from the injection device arrives below the water level.
  • the outlet cross-section of the outlet opening immersed in the water which represents the end section of the line coming from the injection device, must be matched to the installation situation here in order to achieve optimal mixing results.
  • the fourth purification unit instead of using the fourth purification unit as an external component in the household appliance, it is also conceivable to design the fourth purification unit directly in the lid of the receiving tank (FIG. 2).
  • the fourth purification unit should be inserted in the lid so that it can be replaced with a new filter unit at any time when the old filter unit is used up.
  • the mixing results are improved due to a flow deflection which is forcibly exerted on the flow of water by a flow guide body.
  • a flow deflection which is forcibly exerted on the flow of water by a flow guide body.
  • the flow guide body can take any shape to achieve this goal.
  • the flow guide body is formed by a baffle plate, which is arranged opposite the air-ozone-water jet flowing into the receiving tank. So it doesn't matter where the water jet comes from Penetrates chamber of the receiving tank, it is only important that the baffle plate is formed in the chamber of the receiving tank that it ensures an optimal swirling of the water in the chamber. If, for example, the air-ozone-water jet penetrates into the chamber of the receiving tank from the side, the wall of the receiving tank opposite the water jet can also serve as the first deflection device and baffles can also be formed laterally in the chamber for this purpose.
  • the arrangement of one or more flow guide bodies in the chamber of the receiving tank enables, in addition to the better and more intensive mixing, a simplified manufacture of the receiving tank by essentially representing a body that is rotationally symmetrical or otherwise easy to manufacture.
  • the water-air-ozone jet impinging on the Praliplatte is divided and returned upwards to the chamber on both sides. This creates two flow circuits in the middle of the baffle plate, which come together in the upper area of the chamber and thus lead to very good mixing results.
  • the injection device consists of an arrangement which works on the principle of a water jet pump and which is particularly simple to produce and nevertheless leads to good mixing results of the air-ozone mixture with the water to be purified.
  • other mixing devices are also conceivable, it is only important that the air-ozone mixture is mixed intensively with the water and so ozone dissolves in the water. It is therefore also conceivable to add an air-ozone mixture to the water under gas pressure, which is then swirled or mixed again with the water by means of a water pump device responsible for the material paths.
  • the latter has a gripping device, preferably a handle or a constriction or any other handle.
  • a holding device is formed in the household appliance, which is used for centering and receiving the receiving tank during operation of the household appliance.
  • the receiving tank is held so stable in the holding device that a simple insertion of the lid into the filling opening is ensured. It is but also conceivable to form the bottom of the receiving tank so flat that it, when the household appliance is placed on a flat table, is also supported there steadily.
  • a valve that closes when the lid is removed is formed in the feed line so that no water can flow out of the feed line in an uncontrolled manner when the lid is removed from the vessel.
  • the valve can also be formed from an automatically closing check valve, which closes whenever water is not conveyed through the line.
  • a further receiving tank is provided for the household appliance.
  • This can, for example, be used as a parking space in a second receptacle provided for this purpose in the household appliance.
  • the additional container has the advantage that if, for example, the first receiving tank is still filled with purified water, the other receiving tank can already be filled with unpurified water in order to subsequently purify this water in the household appliance. This creates larger reserves of purified water, so that quick access to drinking water is always possible without waiting long.
  • the feed lines to the lid in the vicinity of the lid are preferably provided with rotary tube couplings, so that the lid can be easily removed from the receiving tank by an operator without lines being damaged.
  • This rotary tube coupling arrangement can be part of the cover, which in turn is rotatably attached to the housing. With this arrangement, the receiving tank must always be parked at a certain point on the housing of the household appliance, so that the lid engages when centered in the filling opening and can securely close it, without the need for special centering measures by an operator. With this design, an automatic pivoting of the cover by means of an electric motor or a spring arrangement would also be possible.
  • the features of claim 20 ensure that the lid only opens the inlet opening when the device is switched off and / or there is no longer any ozone gas in the upper gas cushion of the chamber of the receiving tank. This can for example, can be registered in this area by an ozone sensor.
  • the monitoring device for closing or opening the lid can be carried out, for example, by a light barrier, by reed switches or magnetic switches or other devices which, as soon as the lid is to be moved out of or into the receiving tank, trigger a signal by means of which electronic control the device can be switched on or off or is switched off.
  • the lid is only released for opening by a locking device (claim 21) after the ozone, which is both in the water and in the gas cushion, has been broken down.
  • the lid is locked firmly as soon as the household appliance is switched on or has switched itself on.
  • the means can consist, for example, of an ozone sensor which, if it does not measure a certain ozone content in the water after a certain predetermined time, triggers a signal which indicates that the water cannot be cleaned.
  • the fault could then be, for example, a defective ozone sensor, a defective pump or a defective control of the electronics.
  • means are provided in the device which, if the drop in the ozone content in the water after a certain runtime, or the drop in the ozone content per unit of time and maximum amount of water, for example 10 minutes, is not reached and at the same time the pump runtime, based on the filter change interval, is only short, for example 10% of the total pump runtime, trigger a display on the electronic display device, for example "device defective".
  • the ozone sensor or electronics may be defective.
  • the determination of whether the ozone content in the water rises too slowly or whether the turbidity in the water is slowly becoming less is determined by an ozone or turbidity sensor.
  • a moisture sensor is formed in the exhaust air line so that moisture does not get into the fourth purification unit in an uncontrolled manner.
  • the fourth purification unit consists of an activated carbon filter, which must only come into contact with dry air with enriched ozone and not with water if it is to continue to remove the ozone from the air properly.
  • the receiving tank can be arranged lying, standing, at an angle or in some other way in the household appliance, since the outlet line is formed by a tube or hose protruding into the chamber of the receiving tank, via which the water is pumped out to the pump. It is of course important that the pipe or hose end is always arranged at the lowest point of the receiving tank so that air does not have to be sucked in when the tank is relatively empty, which would impair the function of the device.
  • the household appliance has means, for example an electrical switch, which, if it is not switched on by the lid when properly seated in the filling opening, causes the device to be switched on at all, which is preferably due to a Display through the display "Lid does not sit on can be shown.
  • a drain line formed at the bottom of the vessel can be omitted, since this is replaced by a tube protruding into the vessel near the bottom, which preferably leaves the filling opening or elsewhere from the vessel wall and leads to the pump when it is connected downstream of the vessel .
  • FIG. 1 shows a first block diagram of a treatment plant for water, which can be integrated in the housing of a water-treating household appliance with a single vessel according to the invention, the water reservoir or the receiving tank being used simultaneously as a mixing chamber and as a vessel for both the water that has not yet been cleaned and that for the finished water serves
  • FIG. 2 shows a second exemplary embodiment of a water treatment device for a household appliance with slight deviations from the water treatment unit shown in FIG. 1, likewise with only a single vessel, which is used to hold both the water that has not yet been treated and the water that has already been treated,
  • FIG. 3 shows a possible, schematically illustrated embodiment of a jet mixer according to FIG. 2, but on an enlarged scale
  • Fig. 4 shows a further block diagram of a treatment plant for water, wherein the suspended matter filter and the activated carbon filter are arranged in two parallel lines and the valves show the position in which ozone is being enriched in the water and FIG. 5 detail in the area of the treatment unit, whereby, as shown in FIG. 4, again two lines are connected in parallel to each other, however, in contrast to FIG. 4, in one line the activated carbon filter and the suspended matter filter one behind the other and in the other Line only an additive device is added to the water.
  • a treatment system 90 for the purification or treatment of water is shown schematically as a block diagram, which can be used in a housing (not shown in the drawings) of a household appliance (also not shown).
  • the processing system 90 according to FIG. 1 consists of a vessel or holding tank 91 designed as a carafe, which is preferably made of transparent glass or plastic.
  • the vessel 91 has a filling opening 92 from above, which essentially corresponds to the diameter of the vessel 91 in the exemplary embodiment shown.
  • the vessel 91 is provided in the upper end region with a circumferential constriction 93 for better handling of the vessel.
  • the constriction 93 can also be formed only on two opposite sides of the wall, so that the vessel 91 can also be handled well by this handle.
  • the constriction 93 can, however, also be replaced by a gripping device 62 (shown in dashed lines in FIG. 1) formed on the lateral surface of the holding tank 91.
  • the vessel 91 runs essentially cylindrically downward and ends with a bottom 94 which has an outlet opening 95.
  • the bottom 94 is supported and centered in a receiving opening 98 of a housing base 96 of the household appliance and can also be easily removed therefrom.
  • the housing base 96 is only indicated and partially shown in FIG.
  • a valve 97 is formed at the outlet opening 95 according to FIG. 1 in a pipe socket 99 against the direction of the vessel 91 by the force of a spring (not shown), which, as soon as the vessel 91 is removed from the housing base 96 is lifted out, the outlet opening 95 closes.
  • an actuating member (not shown) formed in the housing base 96 actuates the valve 97 and opens net this.
  • the outlet opening 95 forms, with the end of the line 3, a separable pipe coupling 34 which can connect the two connections in a sealing manner.
  • valve arrangement just described is known, for example, from the oral irrigator "Braun Oral-B Plak Control Ultra", type MD 9000, which the applicant has been selling for many years, the valve being formed in the pipe socket at the outlet of the container and this in a receiving opening a receptacle received actuator is opened as soon as the container is inserted with its receptacle into the connection.
  • a valve device which is part of the prior art, is therefore no longer described in more detail at this point. However, it should be the subject of this application.
  • a pipe socket 99 in which this check valve 97 is formed.
  • the pipe socket 99 can be connected in a sealing manner to the outlet or connection line 3 to the pump 2. It is also conceivable that the bottom 94 has no outlet opening 95, but that a riser pipe projects from the top 101 into the chamber 25 from above to near the bottom 94, through which the water is then sucked in by the pump 2.
  • lines shown here as lines are actually pipelines that can convey either gaseous or liquid media.
  • a plug 101 which closes the fill opening 92, is sealingly inserted into the fill opening 92 and is penetrated by two bores 102, 103 arranged next to one another.
  • a tube 104 is sealingly inserted in the bore 102, which projects upwards out of the stopper 101 and which is connected to a line 105 from above and from the side to a line 106.
  • Line 105 carries water and line 106 carries an ozone-air mixture.
  • the free end of the outlet opening 58 of the pipe 104 ends above the maximum water level 26 in the chamber 25 of the receiving tank 91.
  • a further pipe 107 runs to the right of the pipe 104 in the bore 102, which is also seated in the bore 103 and is connected to an exhaust air line 20.
  • the injection device 8 which works on the principle of a water jet pump, treated water is pressed into a nozzle (not shown) which is surrounded from the outside with an annular space (not shown).
  • the annular space has a connection to line 106, via which the ozone-air mixture located in line 106 is sucked in during operation of the device and mixed with the water in the injection device 8.
  • the lines 105, 106, 20 are designed to be flexible so that the cover 101 with the injection device 8 for removing the holding tank 91 from the household appliance can be removed from the filling opening 92 upward (see dashed illustration in FIG. 1).
  • the vessel 91 can only be filled up to a maximum fill level 26 according to FIG. 1, so that there is still enough space 27 above the maximum water level 26 so that the rising ozone-air bubbles can collect there in the form of a gas cushion, which then over the open end 10 of the pipe 107 and the subsequent exhaust air line 20 can be discharged to an ozone filter 19.
  • the line 3 branches behind the pump 2 at the node 29 via a bypass line 5 and the line 14, the latter leading to the purification unit 15.
  • a valve 31, 32 is formed in both lines 5, 14.
  • the bypass line 5 leads via the node 71 directly back to the line 105, which in turn leads back to the injection device 8.
  • the treatment line 14 leads into the with several purification units 15, 17, 45, 47 (water side); 11, 19 (on the air side) provided processing unit 40.
  • the complete processing unit 40 has been bordered with dash-dotted lines.
  • an ozone sensor 7 is connected to the line 3, which measures the ozone content in the water and converts the values electronically and these via the electrical line 80 (shown in dashed lines) to an electronic control unit or electronic control 13.
  • a three-way valve 33 is formed in the processing line 14 before the transition to the processing unit 40 according to FIG. 1, which releases the water flow into the processing unit 40 in one direction and blocks this path in the other position and a second bypass line 70 to a stock feeder 47 releases.
  • the three-way valve 33 can be set so that both water flows into the second bypass line 70 and into the line 14 to the treatment unit 40.
  • the second bypass line 70 opens into the line 110 at the three-way valve 72 and from there at the node 71 into the return line 105.
  • the three-way valve 72 gives the line 109, 110, 105 from the purification unit 17 to the injection device 8 and in the other position the line 70, 110, 105 from the substance feed device 47 to the injection device 8 free.
  • the line 14 leads behind the three-way valve 33 into a chamber 36 formed in the filter 15, which are provided with the suspended particles by filtration and adsorption filters or a sedimentation device, such as ceramic filter materials, sieves etc., which, however, for the sake of simplicity in the drawing as gray-black shading are shown.
  • the first purification unit 15 in the flow direction is connected to a fifth purification unit 45 via the outlet line 38.
  • the purification unit 45 is formed by a chamber 37 filled with an ion exchanger. Ion exchangers are solids that, due to their structure, are capable of reversibly binding ions.
  • the output line 39 of the fifth purification unit 45 is connected to a second purification unit 17 designed as an activated carbon filter, the output-side line 109 of which leads back via the three-way valve 72, the lines 110, 105 to the water jet pump or jet mixer or injection device 8.
  • first, fifth and second purification units 15, 45 and 17 can also be switched on or off in parallel with one another and via valves (not shown). This arrangement is not shown in the drawing. In this way it can be achieved that the individual purification units 15, 45, 17 can be connected to the line path 14, 109, 110, 105 or can be switched off therefrom as required.
  • the gas line 106 leaving the injection device 8 according to FIG. 1 leads into an ozone generator 12, which is not shown here in any more detail, and which is also not described in detail here, since such ozone generators are generally known in the prior art.
  • a tube ozone generator is preferably used here.
  • the ozone generator 12 For its control and energy supply, the ozone generator 12 is connected to an electronic control unit 13 via an electrical line 41 (shown in dashed lines).
  • An input line 74 which leads to the ozone generator 12, is connected to a third purification unit 11, which is designed as an air dryer and in which, for example, an air dryer, silica gel or another moisture-absorbing agent is formed.
  • the third purification unit 11 is connected to the atmosphere via the line connection 68.
  • the exhaust air line 20 connected to the pipe 107 leads via the fourth purification unit 19, which is designed as an ozone filter and is likewise formed in the treatment unit 40 in FIG.
  • the output line 75 of this fourth purification unit 19 is led to the outside or to an open space in the household appliance.
  • the pump 2, the valves 31, 32, 33, 72, the fourth purification unit 19 and an electronic display device 83 are connected to an electronic control device 13 via electrical lines 76, 77, 78, 79, 80, 81 and 82 which the individual processes are monitored and regulated.
  • the electronic control device 13 can in turn be connected to individual switches (not shown), via which various desired water qualities can be switched on by an operator, who are then registered by the control device 13 and via which the corresponding process sequences are then controlled for the purpose of maintaining the water quality .
  • the display device 83 serves to display the individual method steps and at the end emits a ready signal.
  • a moisture sensor 117 is also provided in the line 20, which is connected to the electronic control 13 via an electrical line 118.
  • This moisture sensor 117 is required so that no moisture penetrates into the fourth purification unit 19, which is designed as an ozone filter.
  • the fourth purification unit 19 In order to ensure that the fourth purification unit 19 functions properly, it must always be dry. In the event of incorrect operation, residues of detergent may still be present in the water in the holding tank 91, which could then cause the water to foam in the next operation. The foam would penetrate into the fourth purification unit 19 via the exhaust air line 20, which would be harmful to this ozone filter 19. The same could happen if the receiving tank 91 is overfilled and water gets into the fourth purification unit 19 via the exhaust line 20 when the air-ozone-water mixture is blown into the chamber 25.
  • the moisture sensor 117 which, as soon as it senses excessive moisture in the exhaust air line 20, switches off the device and indicates this on the display device 83. If this is the case, the process must be restarted with a properly filled carafe or vessel and water suitable for purification.
  • the individual purification units, ie also the fourth purification unit 19 are arranged as removable individual parts in the processing unit 40, only the fourth purification unit 19 needs to be replaced.
  • the moisture sensor 117 reacts so early, i.e. it is so far in front of the purification unit that there is still no foam or water in the fourth purification unit 19, the fourth purification unit 19 could be removed, the device switched on with the ozone generator 12 switched off and so on the water is blown out of the exhaust line 20. With this arrangement, however, it must be ensured that the ozone generator 12 is always switched off with certainty. Of course, this can also be controlled by the electronic control device 13.
  • the water treatment unit shown in FIG. 2 for an electrically operated household appliance is essentially the same as the water treatment unit shown in FIG. 1 agree, but there are slight differences, which are described below. In order not to completely describe this water treatment unit again, the same position numbers as in FIG. 1 have been selected for correspondingly identical components and lines.
  • the difference between the water treatment unit according to FIGS. 2 and 3 essentially compared to the water treatment unit according to FIG. 1 is that the jet mixer or the injection device 8 is immersed in the water 22 in the vessel 91 and there by the pump 2 the line 105 coming water exits at the outlet opening 58 of the tube 104 and thereby sucks the air-ozone mixture out of the outlet opening 59 of the tube 60 which is being used for this purpose due to the negative pressure that occurs.
  • This air-ozone mixture which enters the water 22 in the form of small gas bubbles 24, is mixed with the water 22, which is shown on an enlarged scale in FIG. 3.
  • FIG. 1 Another difference from FIG. 1 is that a baffle plate 89 is formed on the bottom of the vessel 91 and is angled downward to the sides, which ensures that the ozone-air bubbles 24 in the water 22 are mixed even better. The mixture is deflected upwards on the baffle plate 89, so that a circulation of the water 22 with the ozone-air bubbles 24 and thus a better mixing occurs. In the exemplary embodiment according to FIG. 1, this baffle plate 89 is not necessary since the inflowing water hits the surface of the water directly.
  • a further difference between the exemplary embodiment according to FIG. 2 and the exemplary embodiment according to FIG. 1 is that the ozone filter 19 designed as a fourth purification unit is arranged in the cover 101, also called a stopper, so that the air mixture enriched with ozone above the water level 26 , which forms an air cushion 27, reaches the atmosphere as air freed from ozone already after penetration of the ozone filter 19 and can preferably also be led out of the device via the outlet lines 75.
  • the second purification unit 17, which is designed as a filter is designed in a separate water circuit in the line 38/39, 109, 110, 105, which is via the valve 72 can be switched on or off.
  • the ozone sensor 7 is also located not directly in the output line 3 but in a line 88 which is connected to line 105 on the one hand and via line 87 and 14 to line 3 or via the bypass line 5 to line 3.
  • the advantage of this embodiment is that the filter designed as the first purification unit is not connected directly upstream of the second purification unit 17 as in FIG. 1, but rather is in a separate circuit to the filter 17.
  • the ozone sensor 7 could also be formed in the outlet line 3 of the vessel 91.
  • FIG. 4 A block diagram of a processing plant is shown very schematically in FIG. 4. To avoid repetitions, the same position numbers were chosen for correspondingly identical components according to the exemplary embodiments according to FIGS. 1 to 3, so that most of the matches are no longer discussed here. It is also mentioned that only the parts of the water treatment system on the water circuit side are shown in FIGS. 4 and 5, again only the part of the treatment unit being visible in FIG.
  • the pump 2 in FIG. 4 is driven by an electric motor 84, the output shaft 85 of which drives the pump 2.
  • the air-ozone mixture is introduced into the injection device 8 via the line 106.
  • the lid 101 is arranged at a distance from the receiving tank 91 in FIG. 4, the lid 101 is also sealingly connected to the receiving tank 91 in operation, as shown in FIGS. 1 and 2.
  • the outlet line 3 coming from the pump 2 and the line 105 returning to the injection device 8 are essentially connected to one another by three lines 14, 109, 14 ', 109' and 5 arranged parallel to one another.
  • the first purification unit 15 designed as a suspended matter filter is in the line 14, 109 and the second designed as an activated carbon filter is in the line 14 ′, 109 ′ Purification unit 17 arranged.
  • a valve 112 or 113 is arranged behind the first or second purification unit 15 or 17, which blocks line 109 or 109 'in the embodiment shown in FIG. 4.
  • a valve 31 is formed in the bypass line 5, which in the position shown in FIG. 4 releases the flow from line 3 to line 105, ie the water is being enriched with ozone, so the household appliance according to FIG. 4 is located in the first method step, as has already been described for the embodiments according to FIGS. 1 to 3.
  • the direction of flow of the water runs via line 3 to line 105 and from there into the injection device 8.
  • FIG. 5 the part of the household appliance shown to the left of the dash-dotted line, as shown in FIG. 4, is not shown for the sake of simplicity, but it should also be the subject of the figure and thus of the household appliance.
  • the embodiment of the processing unit according to FIG. 5 differs from that in FIG. 4 in that here the first and second cleaning units are formed one behind the other between the line 14, 109, as is also the case in FIG. 1 in principle.
  • a further line 70 is formed, in which a sixth purification unit 47 acting as a material feed device is formed, as is also the case with the household appliance according to FIG. 1.
  • a valve 116 is formed in line 70, which in the position shown here releases line 70 to line 105.
  • Valves 31 and 112 are closed, i.e. the position for the preferably third method step is shown here in FIG. 5, as has already been described above in accordance with the mode of operation of FIGS. 1 to 3.
  • the mode of operation of the water treatment system for an electrically operated household appliance shown in FIG. 1 is as follows:
  • the household appliance is switched on using the main switch.
  • the lid 101 is removed from the vessel 91 or lies loosely on the vessel 91.
  • the vessel 91 can be filled away from the household appliance at a water withdrawal point with water that has not yet been purified, which consists either of a water pipe or also of rainwater or other water to be purified.
  • the stopper 101 is placed on the vessel 91 placed and closed in the filling opening 92, but the jet mixer 8 and the tube 107 remain in the stopper 101, that is to say the supply lines 105, 106 and 20 in the region of the stopper 101 must be flexible so that the stopper 101 is removed from the vessel 91 can be removed.
  • the processing unit can be used a possibly second switch or also be switched on automatically and the first process step can begin.
  • pump 2 is switched on, valve 31 is opened and valves 32, 72 are closed.
  • An electrical locking device (not shown) formed between the lid 101 and the vessel 91 now prevents the lid 101 from being opened.
  • the ozone generator 12 now switches on and water now circulates via the outlet line 3 through the pump 2 and via the bypass line 5 back to line 105 and back into the jet mixer 8. Since the flow of water in the jet mixer 8 is so great, gas is sucked in via line 106, corresponding to the mode of operation of a water jet pump, so that air initially flows through line connection 68 gets into the air dryer 11, where it is dried and finally flows into the ozone generator 12 via the line 74 and is enriched there with ozone.
  • the ozone-containing air gets into the jet mixer 8 and is mixed there with the water and emerges from the jet mixer 8 as a water jet 23 and impacts the water surface 26 of the water 22 in the vessel 91. There the water jet 23 becomes so violent mixed with the water 22, that the ozone-air bubbles 24 are refined even more and there is a better dissolution of the ozone in the water.
  • This water which is enriched with ozone, is in turn fed to the pump 2 via the line 3 and runs again via the bypass 5 and the line 105 into the jet mixer 8.
  • the valve 31 closes and the valves 32, 72 are opened, so that the water enriched with ozone passes via the line 14 and the valve 33 into the first purification unit 15, in which the enlarged lumps or turbidities of turbidity are filtered out or can be removed from the water by settling.
  • the ozone generator 12 is switched off.
  • the water which has now been partially cleaned of the turbidity lumps, flows via the outlet line 38 into a fifth purification unit 45, in which the lime is removed from the water.
  • this fifth purification unit 45 can also be omitted if the water offered in a country is not particularly calcareous. After the water has been decalcified, it flows via line 39 into the second purification unit 17, where it is freed of ozone.
  • the water can be de-ozonated using fine anthracite and / or using a catalyst and / or using activated carbon.
  • the water containing less ozone in this way flows back via the line 109, the valve 72 and via the lines 110, 105 back into the jet mixer 8, where the water is only mixed with air, since the ozone generator 12 is indeed switched off and thus the air sucked in via the line 68 is only dried in the air dryer 11 and then flows through the ozone generator 12 without change and reaches the jet mixer 8 as dried air via the line 106.
  • This second process step also runs in a cycle until the ozone sensor 7 no longer detects ozone in the water. This is a measure of the fact that the water is sufficiently cleaned and de-ozone.
  • the second bypass line 70 can be released to a sixth purification unit 47, in which flavors or other minerals or additives are added to the water and / or unpleasant odors are removed from it.
  • This second bypass line 70 leads directly back to the three-way valve 72, where the water then flows back to the jet mixer 8 via the lines 110, 105.
  • the two three-way valves 33, 72 can be switched so that both water flows through the first and second purification units 15, 17 and water through the sixth purification unit 47.
  • the material feed device 47 can also be controlled by the three-way valves 33, 72 in such a way that only the water flows through the line 70 and then no longer through the two first and second purification units 15 and 17.
  • the water After the water has been sufficiently purified in the third process step, which can only optionally be connected to the second process step, it can be indicated via a display device 83 in the household appliance, which is controlled by the control unit 13, that the purification of the water has ended.
  • the pump 2 is switched off to stop the circulation of the water.
  • the household appliance switches off or goes into stand-by mode.
  • An electrical locking device (not shown) formed between the lid 101 and the vessel 91 only allows the lid 101 to be opened when there is no more ozone in the gas cushion 27. This can be checked on the one hand in that an ozone sensor (not shown) is formed in the stopper 101, which always has the ozone content in Gas cushion 27 measures and this feeds the electronic control unit 13, which then releases the electrical locking device. If it is not released, an additional air pump (not shown) formed in the device could first generate air in order to supply gas in the chamber 25 via line 20 to the ozone filter 19 and remove the ozone there. However, it can also be done by resting the device until experience has shown that the ozone in the water and in the air cushion has broken down.
  • the stopper 101 can be removed from the vessel 91 according to the position shown in broken lines in FIG. 1 after the unlocking device has been released.
  • the lines 105, 106, 20 are designed to be flexible in the vicinity of the cover 101.
  • rotatable pipe couplings or similar arrangements are also conceivable for removing the cover 101 from the filling opening 92 of the holding tank 91.
  • the purified water 22 can now be removed from the vessel 91. It is possible for the vessel 91 to be lifted from the housing base 96 carrying the vessel 91, although the pipe socket 99 must then be formed at the outlet of the vessel 91, in which the valve 97 closes when the vessel 91 is lifted from the appliance base 96 is.
  • the vessel 91 can be gripped by the hand of an operator via the constriction 93 and the water can be removed from the vessel 91 via the filling opening 92. Afterwards, unpurified water can immediately be poured into the vessel 91, the vessel 91 placed on the housing base 96 in the receiving opening 98, the lid 101 inserted and the device switched on for a next cleaning process.
  • the mode of operation of the water treatment unit according to FIGS. 2 and 3 is that after the vessel 91 is filled with water that has not yet been purified at a water withdrawal point and is inserted into the household appliance, as described in relation to FIG. 1, and then via not shown in the drawing Switching means has been switched on, the pump 2 switches on and at the same time the ozone generator 12 starts up, the valves 32 and 72 being closed at the same time, while the valve 31 is or is open.
  • the water initially flows via line 3 and 5 at the ozone sensor 7 passes and flows via line 88 to node 111 and from there via line 105 back into jet mixer 8.
  • the air-ozone-water jet 23 emanating from the jet mixer 8 is so violent that it is directed against a baffle plate 89 arranged at a short distance from the floor 94, where it is deflected and ultimately circulates in the chamber 25 until as much ozone as possible is given to the water 22.
  • Water enriched with ozone flows from the vessel 91 via the connecting line 3 to the pump 2. This process circulates in the lines 3, 5, 88, 105 and 25 until the ozone sensor 7 has determined a sufficient amount of ozone in the water 22.
  • valve 31 closes and the valve 32 opens.
  • the ozone generator 12 is switched off.
  • the water now flows via the line 3, 14, through the first purification unit 15, through the line 87, through the switched off ozone sensor 7, through the lines 88, 105 and through the chamber 25 until all the turbidities or Turbidity clumps or turbidity clusters are largely filtered out in the purification unit 15.
  • valve 32 can also close, while the valve 72 opens and now the water via line 3, pump 2, line 38/39 leads into the second purification unit 17, where the ozone from the water again Will get removed.
  • the water then flows via line 109, via valve 72 and via line 110 back into line 105 and back into chamber 25 via jet mixer 8.
  • This water cycle is continued until an ozone sensor 46, which is formed in the line 38/39 and is only shown in broken lines here, sends a signal to one not shown here electronic control unit, which ultimately provides information that the water is free of ozone.
  • the ozone sensor 46 has been shown in dashed lines in FIG. 2, and this is because it can also be omitted if, for example, this method step is purely time-dependent.
  • it is also possible to determine the amount of water to be purified to enter this into the device or to have this amount determined by the device itself using a weighing device, which in turn automatically calculates the required time and the purification process then only takes a correspondingly long time.
  • the purification effect depends, of course, on the quality of the second purification unit 17, which should be designed so that the ozone in the water is broken down in just a few minutes in order to supply the customer with drinkable water in the shortest possible time.
  • the processing unit for an electrically operated household appliance shown in FIG. 2 can also be provided with sensors and other monitoring devices formed in the lines, the data of which are fed to an electronic control unit (not shown), processed there and ultimately resulting in the ozone generator 12, the pump 2 and the valves 31, 32, 72 are controlled. This can be done fully electronically, so that no ozone gets into the environment and, on the other hand, only really purified water is released to an operator, if the electronic devices of the household appliance have actually determined and displayed this.
  • the mode of operation of the household appliance described in FIG. 4 is as follows:
  • the mode of operation of the purification unit according to the household appliance according to FIG. 4 essentially corresponds to the purification unit of the household appliance according to FIG. 1.
  • the first and second purification units 15 and 17 can be controlled simultaneously, successively or in any other way differently from one another, i.e. the first purification unit 15 can first be flowed through by opening the valve 112.
  • the water now flows in a circuit through the first purification unit 15, the lines 109, 3, 14, and the chamber 25 until all solids, turbid substances, etc. are retained in the first purification unit 15, which is either time-dependent or by means of a turbidity sensor (not shown here) can take place.
  • the valve 112 can now be closed, while the valve 113 is opened. Now all the water flows through the second purification unit 17 until the ozone is removed from the water.
  • the water cycle principle is also used here, namely the water always flows back into the holding tank 91.
  • valves 112, 113 it is also conceivable to open both valves 112, 113 at the same time, so that water flows through both the first and the second purification units 15, 17 and at the same time water is freed from cloudy substances and from ozone.
  • valve 31 In the position shown in FIG. 4, however, the valve 31 is open while the valves 112, 113 are closed, that is to say the first method step, as described in FIG. 1, is shown here, where the water is above that of the motor 84 and the drive shaft 85 driven pump 2 is pumped out of the receiving tank 91 via the lines 3, 5, 105 to the injection device 8.
  • the air-ozone mixture In the injection device 8, the air-ozone mixture is sucked out of the line 106 and mixed with the water. This water then flows into the chamber of the receiving tank 91 and back via line 3 to the pump 2.
  • the third method step is currently in progress, line 14, 109 being blocked by valve 112 and line 70 being released by valve 116.
  • the valve 31 in the bypass line 5 is blocked. This means that only water flows through the sixth purification unit and rals, flavors or other additives. This process runs as long as is desired by an operator or as permitted by a sensor device designed in the household appliance, which measures the taste or the additives added in the water and switches off the device at a certain or desired level of taste.

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

L'invention concerne un appareil ménager électrique servant à purifier de l'eau, de manière discontinue ou dosée, qui comprend une pompe (2) pour refouler l'eau (22) hors de la chambre collectrice (25) d'un réservoir collecteur (91). L'appareil ménager présente un générateur d'ozone (12) servant à produire de l'ozone, un dispositif d'injection (8) communiquant avec la chambre de mélange (25) et servant à mélanger de l'ozone à l'eau située dans le réservoir collecteur (91) et une unité de traitement (40) à travers laquelle passe l'eau. L'unité de traitement (40) contient au moins une unité de traitement (15, 17, 11, 19 ou 15, 17, 11, 19, 45, 47) dans lesquelles des constituants sont modifiés dans l'eau, en sont éliminés ou y sont ajoutés. Selon l'invention, pendant la phase de traitement, l'eau qui traverse la pompe (2), le dispositif d'injection (8) et l'unité de traitement (40) reflue en permanence jusqu'au réservoir collecteur (91) par l'intermédiaire d'une ou de plusieurs conduites (3, 5, 105 ou 3, 14, 109, 110, 105). De ce fait, en fin de processus de purification, le volume d'eau qui se trouve dans le réservoir collecteur, à usage domestique, est entier. Le réservoir collecteur sert aussi bien à contenir l'eau à purifier, que l'eau purifiée, en fin de processus de purification. L'unique réservoir est également toujours propre en fin de processus de purification.
PCT/EP1999/004473 1998-07-02 1999-06-29 Appareil menager electrique pour purifier de l'eau de maniere discontinue ou dosee WO2000001624A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU49018/99A AU4901899A (en) 1998-07-02 1999-06-29 Electrical household appliance for purifying water intermittently or in portions

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US9152998P 1998-07-02 1998-07-02
US60/091,529 1998-07-02
US21594498A 1998-12-18 1998-12-18
US11287298P 1998-12-18 1998-12-18
US09/215,944 1998-12-18
US60/112,872 1998-12-18

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WO2000001624A1 true WO2000001624A1 (fr) 2000-01-13

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PCT/EP1999/004475 WO2000001626A1 (fr) 1998-07-02 1999-06-29 Appareil menager electrique pour purifier de l'eau en discontinu
PCT/EP1999/004474 WO2000001625A1 (fr) 1998-07-02 1999-06-29 Unite de purification pour appareil menager electrique servant a purifier de l'eau et appareil menager correspondant
PCT/EP1999/004473 WO2000001624A1 (fr) 1998-07-02 1999-06-29 Appareil menager electrique pour purifier de l'eau de maniere discontinue ou dosee

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PCT/EP1999/004475 WO2000001626A1 (fr) 1998-07-02 1999-06-29 Appareil menager electrique pour purifier de l'eau en discontinu
PCT/EP1999/004474 WO2000001625A1 (fr) 1998-07-02 1999-06-29 Unite de purification pour appareil menager electrique servant a purifier de l'eau et appareil menager correspondant

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AU (3) AU4901999A (fr)
WO (3) WO2000001626A1 (fr)

Cited By (3)

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WO2002062706A2 (fr) * 2001-02-02 2002-08-15 Northern Research Technologies Inc. Ozoniseur a fort rendement
EP1351893A1 (fr) * 2000-12-12 2003-10-15 Water Pik, Inc. Dispositif et procede d'application d'eau ozonee
WO2010057499A1 (fr) * 2008-11-18 2010-05-27 LLP HOLDING, ASÅ ApS Procédé et appareil pour le traitement de fumier

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US3784008A (en) * 1971-08-20 1974-01-08 Moody Aquamatic Syst Inc Ozonating apparatus for drinking water
FR2432483A1 (fr) * 1978-08-02 1980-02-29 Rhone Poulenc Ind Traitement des eaux
DE3208912A1 (de) * 1982-03-12 1983-09-15 Rudolf 3501 Schauenburg Gesslauer Ozon-wasseraufbereitungsanlage
US4599166A (en) * 1984-05-18 1986-07-08 Rudolf Gesslauer Ozone drinking water purification apparatus
US5114576A (en) * 1990-02-15 1992-05-19 Trineos Prevention of contaminants buildup in captured and recirculated water systems
WO1992004969A1 (fr) * 1990-09-12 1992-04-02 Santo Dennis E Di Distributeur d'eau
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Publication number Priority date Publication date Assignee Title
EP1351893A1 (fr) * 2000-12-12 2003-10-15 Water Pik, Inc. Dispositif et procede d'application d'eau ozonee
EP1351893A4 (fr) * 2000-12-12 2006-01-11 Tersano Inc Dispositif et procede d'application d'eau ozonee
KR100913852B1 (ko) * 2000-12-12 2009-08-26 테르사노 아이엔씨. 오존수를 생성하고 적용하기 위한 장치 및 방법
WO2002062706A2 (fr) * 2001-02-02 2002-08-15 Northern Research Technologies Inc. Ozoniseur a fort rendement
WO2002062706A3 (fr) * 2001-02-02 2002-11-21 Northern Res Technologies Inc Ozoniseur a fort rendement
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KR100830800B1 (ko) * 2001-02-02 2008-05-20 노던 리서치 테크놀로지스 인코포레이티드 고출력 오존처리장치
WO2010057499A1 (fr) * 2008-11-18 2010-05-27 LLP HOLDING, ASÅ ApS Procédé et appareil pour le traitement de fumier

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WO2000001626A1 (fr) 2000-01-13
WO2000001625A1 (fr) 2000-01-13
AU4902099A (en) 2000-01-24
AU4901999A (en) 2000-01-24
AU4901899A (en) 2000-01-24

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