EP3774664A1 - Dispositif pour potabiliser de l'eau a fonctionnement manuel et procede de lavage du filtre dudit dispositif - Google Patents
Dispositif pour potabiliser de l'eau a fonctionnement manuel et procede de lavage du filtre dudit dispositifInfo
- Publication number
- EP3774664A1 EP3774664A1 EP19718067.2A EP19718067A EP3774664A1 EP 3774664 A1 EP3774664 A1 EP 3774664A1 EP 19718067 A EP19718067 A EP 19718067A EP 3774664 A1 EP3774664 A1 EP 3774664A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- outlet
- filter
- water
- open
- opening
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 174
- 238000005406 washing Methods 0.000 title claims description 23
- 238000000034 method Methods 0.000 title claims description 22
- 238000009826 distribution Methods 0.000 claims abstract description 60
- 238000011001 backwashing Methods 0.000 claims abstract description 16
- 238000005086 pumping Methods 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 16
- 238000011045 prefiltration Methods 0.000 claims description 10
- 239000011859 microparticle Substances 0.000 claims description 6
- 238000010926 purge Methods 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 4
- 241000700605 Viruses Species 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 235000020188 drinking water Nutrition 0.000 description 13
- 239000003651 drinking water Substances 0.000 description 13
- 238000011144 upstream manufacturing Methods 0.000 description 7
- 230000000007 visual effect Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 230000002747 voluntary effect Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
- C02F1/002—Processes for the treatment of water whereby the filtration technique is of importance using small portable filters for producing potable water, e.g. personal travel or emergency equipment, survival kits, combat gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
- B01D61/081—Apparatus therefor used at home, e.g. kitchen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/18—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/20—Specific housing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/24—Specific pressurizing or depressurizing means
- B01D2313/243—Pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/36—Energy sources
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/36—Energy sources
- B01D2313/367—Renewable energy sources, e.g. wind or solar sources
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/46—Supply, recovery or discharge mechanisms of washing members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/50—Specific extra tanks
- B01D2313/501—Permeate storage tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/04—Backflushing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/12—Use of permeate
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- 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
- C02F2201/002—Construction details of the apparatus
- C02F2201/005—Valves
-
- 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
- C02F2201/008—Mobile apparatus and plants, e.g. mounted on a vehicle
-
- 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
- C02F2201/009—Apparatus with independent power supply, e.g. solar cells, windpower, fuel cells
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/06—Pressure conditions
- C02F2301/066—Overpressure, high pressure
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
- Y02A20/211—Solar-powered water purification
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
- Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
Definitions
- the invention relates to a portable or portable device for the treatment and distribution of water with manual operation, and for a backwashing of the filter.
- Such devices are used, for example, in emergency or post-emergency humanitarian and development programs, so that the population has systems that are simple to implement, robust, and provide safe drinking water immediately.
- Some devices are designed to be portable for individual use, others of larger capacity are nonetheless portable and allow for community use.
- An example of such devices comprises, in a known manner, a manual pump actuable by a handle which is connected to a piston, a pump cylinder in which the piston slides and comprising an inlet valve from which the water is sucked when the piston rises.
- This type of device may include an additional drain outlet that ensures the evacuation of water after washing the filter while the dispensing outlet is closed. Outlets for distribution and emptying are associated with removable plugs.
- the washing of the filter it is necessary to wash it periodically.
- the user has no indicator to know when to perform this washing, except that the pump becomes more difficult to maneuver due to clogging of the filter and difficulty in distributing water.
- the maneuver It will not be difficult for him and he will not be able to easily detect the need to wash the filter.
- the user must close the clean water distribution outlet and open the drain outlet, necessarily handling the caps of the outlets with his fingers.
- the filter again manipulates the caps by closing the drain and opening the one for the distribution of clean water. This manipulation is not optimal from a sanitary point of view, because the drain outlet can be soiled and the user by retouching the cap and the clean water delivery outlet can then contaminate the latter outlet and therefore the clean water that will come out.
- the invention therefore aims to provide a manual water purification device which obviates the aforementioned drawbacks, in particular avoids manual manipulation at the drain outlet and allows washing the filter without necessarily having to anticipate, while being easy to use, and remaining portable or portable.
- the invention is intended by adapting the volume of the device to an individual or family use (of a few people), the device being portable, to a community use, the device being portable.
- the water purification potabilization device for manual operation comprises water inlet means, manual pumping means, a filter, a water distribution outlet , a closed drain outlet, and preferably a purge, and is characterized in that it comprises a distribution chamber which is arranged between the filter and the water distribution outlet, and which stores clean filtered water from the filter to be delivered by the water distribution outlet, the distribution chamber communicating directly with the filter, and the water of the distribution chamber can be returned under pressure in the filter to perform a filter backwash .
- direct communication means a passage from the filter to the distribution chamber without interface means inside the passage.
- This distribution chamber is not only a clean water tank to distribute but also a clean water tank for washing the filter when an overpressure is generated inside the device.
- the distribution chamber thus has a dual function, which allows in particular to save space in the pump, while ensuring excellent filter washing.
- An overpressure in the device is created when the water can no longer reach the dispensing chamber from the filter due to clogging of the filter, or when the dispensing outlet is closed and the user continues to pump.
- the potabilization device of the invention operates without electrical energy.
- the device comprises means for closing / opening the water dispensing outlet, said means for closing the water dispensing outlet being intended to be actuated by the user to pressurize the water. interior of the device, in particular the distribution chamber, or said closing means of the water distribution outlet closing automatically following the detection of a critical value of overpressure.
- the reservoir water is pressurized in the dispensing chamber when the user continues to pump, which allows it to be returned to the filter.
- the distribution chamber comprises means for retaining air in said chamber in addition to the water present.
- the means for retaining air includes a conduit from the water dispensing outlet and extending into the dispensing chamber to open at a distance from the upper portion of said dispensing chamber. bedroom. This pipe certainly allows the evacuation of water out of the room but also to store air in the upper part of the room. This air will be pressurized when the water supply outlet is closed and the user continues to pump.
- the water reinjected into the (retro) washing filter is intended to be discharged through the drain outlet which is connected to the filter (either at the lower end of the filter or at the upper end of the filter).
- the device comprises means for opening the drain outlet which can be automatic (in case of detected overpressure) or manually operated.
- the filter extends longitudinally (and vertically in the use position) and has two opposite ends called upper and lower, and the drain outlet is located at the lower end or upper end of the filter. This arrangement ensures that regardless of the open or closed state of the water delivery outlet, once the drain outlet is open, the water will not be able to exit through said dispensing outlet.
- the qualifiers "superior”, “lower”, “high” and “low” of an element of the device are used as part of a normal installation of the device, that is to say relating to a vertical concept with respect to a flat horizontal surface on which the device would be placed.
- the terms “upstream” and “downstream” refer to the direction of water flow in the context of normal use of the device for delivering drinking water.
- the device comprises means for opening the discharge outlet which are automatic (and following the detection of an overpressure or the need for a filter washing), means maintaining the drain outlet open after opening, and actuable means preferably by manual reset, push button type, externally accessible to the device, to close the drain outlet.
- automatic means for opening the drain outlet means means operating without direct manual intervention and without the need for electrical energy to open the drain outlet, said automatic means being implemented in response to a trigger that on the other hand, can be automatic or manual.
- the automatic opening of the drain outlet makes it possible not to manually manipulate the drain outlet.
- the automatic means for opening the drain outlet ensure that the drain outlet is kept open, which guarantees the user (without his taking care of it) that the filter will necessarily be cleaned since the water will necessarily flow through the drain outlet.
- the solution of the invention therefore makes it possible to automatically secure the device so as not to reach the integrity of the filtration membranes by an overpressure and to automatically warn the user.
- the water inlet into the filter is through the top of the filter or the bottom of the filter, and upstream of the distribution chamber.
- the device may comprise an upper free space inside the device, above the filter, which makes it easier to measure the pressure of the device by arranging a manometer at the upper and inner end of the device, above the device. upper end of the filter.
- An inner free space is arranged between the upper end of the filter and the upper end wall of the device.
- the automatic opening means are housed inside the device. They are inaccessible to the user.
- the automatic means for opening the emptying outlet are implemented automatically by the detection of an overpressure, in particular the automatic opening means are able to trigger when a pressure threshold value is reached within the device, preferably the automatic opening means being a valve, preferably the device further comprising a visual pressure rise indicator.
- the pressure threshold value is for example between 1 and 4 bar, preferably of the order of 4 bar (value at which the valve is calibrated). This threshold value will be adapted in particular according to the volume of the device or the filter.
- the dispensing outlet being always open; the overpressure is created because the water can no longer pass through the filter and up to the dispensing outlet;
- the drain outlet can automatically open because of the pressure detected at a threshold, or be manually opened when a pressure threshold is reached, the discharge outlet being able to remain open for the flow of water from backwashing.
- the generated overpressure causes the automatic opening of the drain outlet, which causes a backwash of the filter via treated water that could not be evacuated through the dispensing outlet.
- the drain outlet being automatically opened and no longer closing, the drinking water can no longer exit through said dispensing outlet, and the user understands immediately that the filter is or was dirty and that it should be possibly carry out at least one additional wash. Once the backwash / wash is done, it will be necessary for the drain outlet to be closed again for normal operation of the drinking water delivery device.
- the device comprises detection means that a backwashing is necessary before reaching a critical value of overpressure caused by the total fouling of the filter.
- the detection means are, for example, the calculation of the volume dispensed since the last backwash or the number of maneuvers of the pump, or the detection of an overpressure threshold value lower than the critical threshold value.
- the dispensing outlet being open, the method comprises the following steps: automatic detection of the need for washing the filter, automatic closing of the water distribution outlet, pumping by the user until detection an overpressure in the device, automatic opening of the drain outlet generating the filter backwash, and open maintenance of the drain outlet
- the backwashing is voluntary
- the backwashing method of the filter comprises the following steps, the device comprising an overpressure safety valve, the dispensing outlet being open: closure by the user of the water distribution outlet, pumping by the user according to a recommended number of times, opening by the user of the drain outlet generating the filter backwash, and open maintenance of the drain outlet.
- the backwash can therefore be done automatically or voluntarily.
- the backwash water is pressurized through the entire filter for washing and is discharged through the drain outlet (located at the bottom or top of the filter) without being passed through the dispensing chamber.
- the drain outlet may open at the bottom of the filter and at the water inlet means, or at the top of the filter and inside the device, or whatever its position directly outside the device.
- the distribution chamber and the volume containing the filter form a monolithic assembly, the filter and the distribution chamber being separated by a wall and communicating via a passage / hole in the partition wall, or consisting of two separate connected parts. by a passage / a conduit.
- the device comprises the automatic opening means and the means maintaining the drain outlet open after opening, these means are combined to form a single system.
- the system is operable to close the output of draining, in particular said system comprising a valve able to remain open once triggered (that is to say once it has opened); the device comprises actuating means for closing the valve.
- the device comprises actuating means connected to the automatic opening means for closing the emptying outlet, in particular the actuating means comprise manual resetting means, of the pushbutton type, accessible externally to the device.
- the device comprises the distribution chamber connecting an evacuation passage that communicates with the filter, at the dispensing outlet, preferably the evacuation passage being located at a height corresponding to one third, or even half of the height of the filter from its lower end.
- the device further comprises closing means and opening of the dispensing outlet, these means being arranged inside the device (upstream of said dispensing outlet and close to it), while being operable , especially manually, from outside the device.
- closing means and opening of the dispensing outlet these means being arranged inside the device (upstream of said dispensing outlet and close to it), while being operable , especially manually, from outside the device.
- the closing and opening means comprise a valve or a retractable element capable of adopting two positions which respectively close and open the dispensing outlet, in particular the retractable element integrating said dispensing outlet and adopting either a position retracted so as to be coplanar or substantially coplanar with the rest of the body of the device, an outward position so as to protrude from the body of the device with preferably the dispensing outlet which is headed by said element and opens out at the bottom of the device.
- the device may further comprise a visual pressure rise indicator which allows the user before the automatic triggering of the drain if the threshold value is reached, to indicate conveniently to the user that the inside of the filter chamber soon reaches the threshold value, and that it is time to clean the filter.
- the device comprises for example a pressure gauge which is associated with a visual color change indicator when a reference value is reached, a reference value lower than the opening release threshold value of the output of drain. This reference value is for example a value which is 0.5 bar lower than the threshold value.
- the device may comprise a purge (which opens manually); it is housed inside the device, right and below the filter, and opens indirectly to the outside, that is to say, it is not directly accessible from outside the device.
- the device comprises attachment means which make it possible to temporarily fix (notably by suspension) the device for its use and / or to transport it.
- the device may comprise fixing means comprising a knurled screw to adapt to the thickness and / or the geometric shape of the support to which the device is fixed.
- the water inlet means comprise a housing which is removable relative to the rest of the body of the device (in particular with respect to the base of the device), and connecting means (for the passage of water), such as a pipe, from the housing to the pump.
- This configuration allows to deport the water inlet means relative to the pump; for example, the user can arrange the water inlet means in a water point and dispose the rest of the remote device on the ground.
- the water inlet means comprise prefiltration means, preferably removable (in particular to facilitate its cleaning), for filtering coarse particles such as leaves, pebbles or other, and preferably further filter microparticles .
- the filter is made of polymer or ceramic, in particular is capable of filtering the microparticles, or even viruses according to the type of filter used, preferably furthermore the water inlet means comprising prefiltration means.
- the device comprises means for locking the pumping means preventing the mobility of said pumping means, and preferably further comprises means for connecting and connecting the device to a tap.
- FIG. 1 represents a perspective view of a potabilization device according to the invention
- Figure 2 corresponds to the device of the figurel according to another view from the side and showing the outlet water distribution outlet;
- FIG. 3 corresponds to FIG. 2 showing the projecting and operational water distribution outlet
- FIG. 4 corresponds to Figure 2 with the automatic opening means that have been implemented
- FIG. 5 corresponds to FIG. 3, the piston of the pump being raised
- Figure 6 is a bottom view of the device in the state of Figure 5;
- FIGS. 7 to 9 are diagrammatic views of the interior of the device of the invention showing the principle of operation of the device for implementing the backwashing method according to three variant embodiments, FIG. Open open following detected overpressure;
- FIGS. 10A to 10C are schematic views of the operating steps of an exemplary embodiment of the automatic means for opening the device of the invention.
- Figure 11 is a perspective view of the device showing an example of attachment means for the device
- Figure 12 shows a partial perspective view of the base of the device showing the remote water inlet means
- Figure 13 is a perspective view from below of the device with the remote water inlet means
- Figure 14 is a perspective view of the interior of the water inlet means
- FIG. 15 represents a perspective view of a drinking water treatment device of the invention according to another exemplary embodiment as regards its external appearance
- Figure 16 illustrates the device for two other examples of fixing solutions to facilitate the use of the device.
- FIGS. 17a and 17b are schematic views of the device of the invention for implementing a fourth variant of the backwashing method, FIG. 17a showing the device in operation for dispensing clean water, while FIG. 17b illustrates the backwash.
- the water purification device 1 of the invention with manual operation illustrated in FIGS. 1 to 9 and 16 to 17b, is intended either for an individual or family use or for a use.
- the water potabilization device 1 of the invention has the function of a manual water pump and a means for treating water.
- This device 1 comprises a body 10, water inlet means 2, pumping means 3, a filter 4, a water distribution outlet 5 intended to deliver the treated water after passing through the filter 4 , and a drain outlet 6 allowing the evacuation of water during the washing of the filter 4 while the water dispensing outlet 5 is closed.
- This device is intended to ensure a backwash of the filter in a simple manner for the user, and to limit the manufacturing costs of the device. This device makes it possible to implement different variants of the backwashing process. Four variants of the process will be described.
- the water inlet means 2 preferably comprise prefiltration means 20, for example in the form of grids, for stopping coarse particles, such as leaves, twigs, pebbles.
- the water inlet means 2 have, in the example illustrated, a solid bottom body, the inlet and pre-filtration grids 20 being arranged at the lateral periphery of the body, in planes perpendicular to the bottom, the bottom which according to the use of the device may be intended to rest on a bottom surface of a volume of water.
- the pre-filtration means may comprise the illustrated grid 20 as well as an additional prefiltration system (as referenced at 24 in FIG. 14) for filtering micron-sized particles.
- the membrane of the filter 4 may be of polymer, or preferably ceramic with effective filtration performance, not only vis-à-vis microparticles but also viruses.
- the body 10 of the pump is advantageously of longitudinal shape.
- the body and the functional elements external to the body can have various forms.
- FIGS. 1 and 15 illustrate two respective variants.
- the functional elements arranged inside the device are illustrated in Figures 7 to 9.
- the water inlet means 2 are at the lower end of the device, in particular in the base 11 of the device.
- the water inlet means 2 will be detailed below.
- the pumping means 3 comprise a pump cylinder 30 arranged inside the body 10, a piston 31 able to slide in said cylinder 30 and having at its end upper and protruding from the body 10, a handle 32 for the operation of the piston, a first said inlet valve 33 cooperating with the inlet means 2 and from which the water is sucked when the piston 31 slides upwards, and a second outlet valve 34 from which the water escapes when the piston 31 is translated downwards and compresses the water that has been sucked into the pump cylinder 30.
- the device operates manually, the user pulling on the handle 32 to lift the piston 31 (dotted arrow in FIG. 7) causes the suction of the water via the valve 33 which has opened, and by pushing on the piston 31 via the handle (arrow in FIG. dashed of Figure 8), the water is pushed back to the filter 4 via the second valve 34 which opens while the first valve has closed 33.
- the body 10 comprises internally and upstream downstream in the direction of flow of the water, the pump cylinder 30, a filtration chamber 40 in which the filter 4 is housed, an inlet duct 41 which connects the pump cylinder 30 to the filtration chamber 40 and the upstream end of which is arranged the outlet valve 34, a distribution chamber 7 arranged laterally to the filter 4 and communicating therewith, the dispensing outlet 7 arranged in outlet (downstream) of the distribution chamber 7, and the discharge outlet 6 which is arranged at the lower end of the filtration chamber 40.
- the filter 4 is arranged in the filtration chamber 40.
- the filter 4 is arranged vertically and has two upper free ends 4A and 4B. Between the upper end 4A and the upper wall of the body 10 is formed a free upper and inner space 43.
- the inlet duct 41 extends vertically from the outlet valve 34 of the pump cylinder to the upper space 43 to bring the water above the upper end 4A of the filter.
- the distribution chamber 7 communicates on the one hand at a certain height with the filtration chamber 40 via a passage 70 (an orifice), and opens on the other hand on the outlet of water distribution 5.
- the evacuation passage 70 of water from the filter 4 into the distribution chamber 7 is directly in communication with the interior of the filter, and preferably at a certain height of the filter relative to the lower end 4B (for example between the third and half the height of the filter from its lower end 4B).
- the emptying outlet 6 is in a closed state (FIGS. 7 and 8) during the usual use of the device for delivering potable treated water.
- the device comprises a pipe 50 which connects the distribution chamber 7 to the dispensing outlet 5, said pipe extending inside the chamber, towards the bottom of the room.
- This pipe 50 is a means for retaining air in the upper part of the chamber and / or pipe. This air will participate in the overpressure inside the device when the filter is dirty and / or when the dispensing outlet is closed and we continue to pump.
- the length of the pipe 50 inside the distribution chamber, combined with the volume of the upper part of the chamber around this pipe, is adapted to the value of overpressure to be reached in the device.
- the device 1 comprises automatic opening means 8 which are able to automatically open the emptying outlet 6 in the event of an overpressure detected in the device, in particular in the filtration chamber 40, and to keep it open .
- the automatic opening means 8 operate mechanically without the need for electrical energy.
- These automatic opening means 8 are in the preferred example of the invention a valve which is calibrated to open automatically to a threshold value reached in the chamber 40, and which can remain advantageously open depending on the variant of the device.
- the threshold value of opening is for example between 3 and 4 bar.
- the height of the orifice 70 for passage from the filtration chamber 40 to the distribution chamber 7, the diameter of this passage orifice, and the volume of the distribution chamber 7 are adapted to ensure ejection of the water under pressure (during the backwash) through the filter 4 to its full height to ensure proper washing of the entire filter.
- the function of opening continuity of the valve while the pressure has gone down allows to evacuate the untreated water that continues to be pumped by the user. Indeed, once the discharge outlet 6 open and the water can not be evacuated by the exit of distribution 5, the user continuing to pump will generate a passage of water in the chamber 40 and through the filter 4 to directly reach the drain outlet 6; impurities that have not been completely removed may be during this passage of water. After washing, for a new use of the pump to deliver drinking water, it is necessary to close the drain outlet by closing / pushing the valve. This operation is preferably done manually.
- FIGs 10A to 10C illustrate an exemplary embodiment.
- the valve 8 comprises a chamber 80, a piston 81 having at the bottom end an elastomeric seal 82 abutted in the rest state (FIG. 10A) and able to deform to pass through an orifice 83, an inlet 84 opening into the chamber 80 upstream of the seal, and an outlet 85 downstream of the seal and opening out of the chamber.
- the seal 81 is calibrated to deform at a certain pressure.
- the piston 81 can not go down and reposition the seal 82 to close the orifice 83, only by manual actuation by acting on an actuator 86 outside the device connected for example via a rod 87 at the upper end 81A of the piston 81 opposite the seal.
- the automatic opening means 8 (the valve) are thus manually reset.
- the device 1 comprises the manual actuating member 86 which is connected to the valve, allows the maneuvering, for example by pressing on it, to push the piston 81 according to the arrow F ( Figure 10C) to reintroduce the seal 82 in the chamber 80 and closing the orifice 83 again and thus close the outlet 85 ( Figure 10A).
- the actuator 86 is external to the device to be accessible by the user.
- I l is for example a push button as shown in Figures 1 to 5.
- the valve 8 When the emptying outlet 6 is closed, the valve 8 is in the idle state and the actuating member 86 is in low position, that is to say in the depressed position in the body 10 of the device (FIGS. 3 and 5), whereas when the drain outlet is open, the valve 8 being raised, said actuating member 86 pushed outwardly, projecting blatantly out of the body of the device ( Figure 4).
- To close the valve and thus the drain outlet simply press the button 86 projecting.
- the device 1 further comprises closing and opening means 9 of the dispensing outlet 5 (FIGS. 7 to 9), these means being arranged close to and upstream of said dispensing outlet 5 and to the inside the body of the device, while being manually operable from outside the device ( Figures 2, 3 and 5).
- This allows the user to wash the filter when he wants, and not having to handle as such the dispensing outlet 5.
- the user can thus close the dispensing outlet 5 via the closing interface means and opening 9, and carry out a washing of the filter 4 via the automatic opening means 8 which have detected an overpressure.
- the steps are as follows, the user closes the dispensing outlet, pumps a little water to bring clean treated water into the dispensing chamber 7.
- the dispensing outlet 5 As air has been stored in the device when its first operation, the dispensing outlet 5 being closed, while continuing to pump, an overpressure is generated in the device generating the automatic opening of the opening means 8, the clean water which has been stored in the distribution chamber 7 will be re-injected through the filter 4, performing a backwash and exit through the drain outlet 6. If the user continues to pump while the dispensing outlet 5 is closed and the drain outlet 6 is open, the water coming from the open valve 34 and the upper space 43 of the filtration chamber 40 will flow directly along the entire height of the filter 4 and will evacuate directly through the drain outlet 6.
- the closing and opening means 9 of the dispensing outlet 5 are, for example, a valve or a tap which is able to adopt two positions to respectively open (FIG. 8) and close (FIG. 9) the pipe 50 leading to the distribution chamber. 7 at the dispensing outlet 5.
- the closing and opening means 9 operable from the outside to close or open inside the device the pipe 50 which goes to the outlet 5, are in the form of a pivoting latch that the user can turn in two positions.
- the closing and opening means 9 are constituted by a retractable element containing the dispensing outlet 5, the element being able to adopt two positions, a position retracted into the body 10 of the device ( Figure 2), closing inside the body 10 of the device the pipe 50, and a position out of / out of the body 10 ( Figures 3 to 6), generating inside the body the continuity of the pipe 50 to the outlet 6.
- the body 10 of the device comprises a recess 90 allowing the arrangement of the retractable element 9 in the retracted position, so that said element not protrude from the body in a stowed state providing a continuous surface of the body 10, while projecting for its use position.
- the dispensing outlet 5 being integrated in the element 9, it is thus made inaccessible in the retracted state of the retractable element 9, protecting it and avoiding any manipulation, any risk of staining out of use.
- the dispensing outlet 5 is integrated in the retractable element 9 so that it closes laterally and in the upper part to open only downwards of the device ( Figure 6).
- the device 1 may comprise according to the invention, a visual indicator 12 of increase in pressure.
- a visual indicator 12 of increase in pressure This allows the user before the automatic release of the drain in case of reached threshold value, to indicate to the user that the inside of the filtration chamber 40 soon reaches a state of overpressure, and that it is time to clean the filter.
- the pressure rise indicator 12 is for example a rotating ball visible to the user, which has two different colors, for example the ball having one of its green half-spheres, and the other red, the ball being associated with a manometer measuring the pressure in the filtration chamber.
- the ball 12 which presented its green face to the user rotates automatically to show its red face, which alerts the user
- the manometer is disposed in the upper free space 43; it measures the pressure at the input of the filter 4
- the device 1 of the invention comprises, with reference to FIG. 11, fastening means 13 which make it possible to fix (to attach and / or suspend) and / or to transport the device.
- the attachment means 13 are for example rigid and have the shape of an L whose L hollow is turned downwards. They can be associated with a strap here not shown.
- the attachment means are used to suspend the device on the edge of a water tank.
- the strap can also be used to easily transport the device by the user.
- the attachment means may comprise at least one knurled screw 13A.
- the inlet means 2 of water suction can be offset relative to the body 10 of the device. The input means 2 are then integrated into the base 11 of the device removably.
- the input means 2 are made removable by removable fixing means, for example by means of mutual cooperation of the male-female type, such as by clipping of male elements 21 arranged on the body of the input means of water 2, in female elements 14 of the base 11.
- the base 11 is hollow to provide a housing for the body of the water inlet means 2.
- the base 11 comprises between the feet 13, lateral openings 13A so that the prefiltration grids 20 water inlet means 2 open on the outside.
- the device of the invention is associated with a kit.
- this kit comprises a flexible pipe 21 and a housing 22.
- the housing 22 makes it possible to carry the water inlet means 2 and to arrange them in water, while the flexible pipe 21 connects the housing 22, thus the water inlet means 2, to the inlet of the inlet valve 33 of the pump cylinder.
- the housing 22 is provided with the female shapes 23 for clipping the body of the water inlet means 2 via the male elements 21.
- a second barrier 24 consisting of a filter grid for the microparticles.
- This second prefiltration barrier can be removable and cleaned. It is preferably also removable to be placed both in the base 11 and in the housing 22 when the water inlet means are remote.
- the body of the device in particular the base 11, may be configured in volume to accommodate in a row the kit formed of the flexible pipe 21 and the housing 22.
- the device 1 advantageously comprises a purge 42 which opens manually.
- This purge is housed inside the base 11 and is arranged at right and below the filter 4; it is necessary to remove the water inlet means 2 to access it. This makes it possible to totally empty the device and to limit as much as possible the formation of bacteria or biofilms inside the device when it is not used for a certain time.
- the device 1 in another variant may comprise a base 11A whose section is greater than the section of the upper remainder of the body housing the filter and the chamber of distribution, as shown in Figure 16, so as to provide better stability and allow easy to fix the device on a flat support.
- This base 11A is preferably removable and comprises a connection 11B for flexible pipe, the pipe being intended to be connected to a water inlet (such as a tap or a remote strainer).
- the base 11A is designed so that once in place, the inlet 11B is connected inside the device to the water inlet means 2.
- These water inlet means 2 may contain an anti-flow valve. return to avoid for example the contamination of a water network in case of connection to a tap and / or a pressure limiter to protect said device from water hammers in the same case of connection to a water network via a tap.
- the device 1 may comprise as fixing / attachment means, a knurled screw 13A.
- the device When the user needs clean water, the device is in the state of FIGS. 3, 5 and 7, the emptying outlet 8 being closed while the dispensing outlet 5 is open and the retractable element 9 is out .
- the user pumps with the handle 32 so that the sucked water out through the dispensing outlet 5 ( Figure 8).
- the valve 8 opens automatically to reinject the water from the distribution chamber 7 into the filter 4, performing a backwash, and discharge the water via the drain outlet 6.
- the user to use the device again to deliver drinking water, resets the valve 8 by pressing the actuator (the push button) 86.
- the drain outlet 6 is closed again; by pumping, treated water will come out again via the dispensing outlet 5.
- the user can carry out a filter wash, by first closing the dispensing outlet 5 (second variant of implementation of the backwashing process). Once the dispensing outlet 5 is closed, it pumps to bring water into the dispensing chamber 7 (the water will be clean) and put it under pressure (air is stored in the device) until the valve 8 reaches the calibrated value causing the opening of the valve (and its holding open) and the backwash of the filter 4 by the water which was in the distribution chamber 7, the water s then evacuating automatically through the drain outlet 6 without the user is touching any of the outputs. Once the filter is washed, the user presses the button 86 to reset the valve 8 and reopens the dispensing outlet 5.
- the steps are as follows:
- the user pumps or continues to pump if he was pumping, until the pressure in the device reaches the critical pressure value which triggers the automatic opening of the drain outlet and the backwash , and the drain outlet being kept open. Once the backwash is done, it is necessary that the drain outlet is closed.
- the device illustrated in FIGS. 17a and 17b makes it possible to implement a fourth embodiment of the retro-wash, this retro-washing being voluntary.
- the device 1 has its emptying outlet 6 preferably located at the upper end of the filter 4.
- the emptying outlet 6 is associated not with automatic opening means but with manually operated opening means 8A.
- the device comprises a safety valve 8B.
- This usual safety valve 8B opens automatically in case of detected overpressure and closes immediately.
- the amount of water leaving the safety valve is of course low; advantageously, the outlet of the valve may be placed so that the water that comes out is projected from the top of the device and against a wall to serve as a sound and / or visual indicator relating to the need to carry out a backwash .
- a purge not shown may also be present.
- the filter backwashing method of this fourth variant comprises the following steps:
- the emptying outlet 6 is closed and the clean water distribution outlet 5 is opened, the user then closes the dispensing outlet 5 with clean water,
- the user manually pumps according to a recommended number of times to pressurize the air inside the distribution chamber, the number of times corresponding to a pressure value to be reached (without this pressure reaching the threshold value at which the safety valve 8B is tared to open automatically),
- the user opens the emptying outlet 6 which is preferably located at the upper end of the filter (opposite the dispensing chamber), which has the effect of creating a vacuum and the water of the distribution chamber 7 is returned through the filter 4, providing the backwash.
- the emptying outlet 6 is closed and the dispensing outlet 5 is re-opened.
- the manual watering device 1 of the invention provides an efficient water treatment, being easy to use both to deliver the water and to wash the filter, providing an automatic backwash the filter (without electrical energy supply) to preserve said filter, without the user cares and has to handle, to directly touch the water outlets.
- the device has a minimal size for its operation.
- the device weighs in the order of 1.5 Kg and treats 1.5 L / minute, with a footprint of the order of 30 cm high and 10 cm by 10 cm in section.
- the device weighs in the order of 7 to 10 kg and treats 5 L / minute, with a footprint of the order of 50 cm high and 20 cm by 15 cm in section.
- the device 1 of the invention can be connected to a tap, if the tap water must also be potabilized.
- the device comprises a connection kit (for example a pipe and at least one connector) for connecting the inlet of the pump (the inlet valve 33) to the valve.
- the device 1 comprises ( Figure 1) means 35 for locking the mobility of the piston 31 pump to prevent the piston is lifted upon arrival in the device of the pressurized water valve.
- These locking means 35 are for example a quarter-turn ring manipulable externally and secured to the piston.
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Nanotechnology (AREA)
- Devices For Dispensing Beverages (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1870364A FR3079512B1 (fr) | 2018-03-30 | 2018-03-30 | Dispositif pour potabiliser de l'eau a fonctionnement manuel |
PCT/EP2019/058069 WO2019185902A1 (fr) | 2018-03-30 | 2019-03-29 | Dispositif pour potabiliser de l'eau a fonctionnement manuel et procede de lavage du filtre dudit dispositif |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3774664A1 true EP3774664A1 (fr) | 2021-02-17 |
Family
ID=62223050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19718067.2A Pending EP3774664A1 (fr) | 2018-03-30 | 2019-03-29 | Dispositif pour potabiliser de l'eau a fonctionnement manuel et procede de lavage du filtre dudit dispositif |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP3774664A1 (fr) |
CN (1) | CN214495757U (fr) |
FR (1) | FR3079512B1 (fr) |
MA (1) | MA52194A (fr) |
WO (1) | WO2019185902A1 (fr) |
ZA (1) | ZA202005904B (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113511705B (zh) * | 2021-04-01 | 2022-07-05 | 广东道盟智能科技有限公司 | 一种反渗透滤芯及净水器 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060175270A1 (en) * | 2005-01-28 | 2006-08-10 | Greene William A | Compact backwashable water filter system |
NL1038928C2 (nl) * | 2011-07-06 | 2013-01-08 | Robert Martinus Opdorp | Elektrisch energievrij werkende waterzuiveringinrichting met een membraanfilter en een systeem van automatische terugspoeling van dat filter. |
CN205182292U (zh) * | 2015-09-06 | 2016-04-27 | 孙银焕 | 具反冲洗功能的户外净水器 |
GB201713111D0 (en) * | 2017-08-16 | 2017-09-27 | Griffith John | Water filter |
-
2018
- 2018-03-30 FR FR1870364A patent/FR3079512B1/fr active Active
-
2019
- 2019-03-29 MA MA052194A patent/MA52194A/fr unknown
- 2019-03-29 CN CN201990000602.3U patent/CN214495757U/zh active Active
- 2019-03-29 EP EP19718067.2A patent/EP3774664A1/fr active Pending
- 2019-03-29 WO PCT/EP2019/058069 patent/WO2019185902A1/fr unknown
-
2020
- 2020-09-23 ZA ZA2020/05904A patent/ZA202005904B/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR3079512A1 (fr) | 2019-10-04 |
CN214495757U (zh) | 2021-10-26 |
WO2019185902A1 (fr) | 2019-10-03 |
FR3079512B1 (fr) | 2021-07-16 |
ZA202005904B (en) | 2021-07-28 |
MA52194A (fr) | 2021-02-17 |
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