KR20130017930A - Water ionizer capable of regenerating nano-fiber filter and regenerating method thereof - Google Patents

Abstract

PURPOSE: A water ionizer capable of regenerating a nanofiber filter and a regenerating method thereof are provided make a nanofiber filter to lose the property of electric charges for regenerating the nanofiber filter through ejection of the materials collected by electric charges, thereby increasing the replacement and repair period and improving the lifetime of the nanofiber filter. CONSTITUTION: A water ionizer capable of regenerating a nanofiber filter comprises a filter part(110) filtering raw water flowing in; an electrolytic bath(130), and a filter regeneration part(160). The filter part consists of a nanofiber filter(120) which is electrically charged. The electrolytic bath electrolyzes the water filtered by the filter part to produce acidic water and alkaline water. The filter regeneration part supplies the water discharged from the electrolytic bath to the nanofiber filter so that the nanofiber filter can be regenerated. In order to control the operation of electrolytic bath and the water flowing from the electrolytic bath to the nanofiber filter, a control unit is additionally included to the water ionizer. The control unit drives the electrolytic bath to operate reversely so as to supply the strong alkaline water or the strong acidic water to the nanofiber filter.

Description

Water ionizer capable of regenerating nano-fiber filter and regenerating method

The present invention relates to an ionized water group capable of generating alkaline water (alkaline ionized water) and acidic water (acidic ionized water) through electrolysis, and more particularly, the ability of the nanofiber filter to filter or trap in an ionized water group having a nanofiber filter. The present invention relates to an ion water group capable of regenerating a nanofiber filter and a method for regenerating a nanofiber filter of an ion water group, which can be regenerated when the degradation occurs.

Preferred water is colorless, as no heavy metals and toxic substances such as various bacteria and the appropriate amount of the mineral-containing water into an odorless state, is known to be ideal to include a weak alkaline of Ca ^{2 +,} Na ⁺ It water present. This is because such alkaline water has small water particles, so it is quickly absorbed into the body, and acts as an antioxidant to remove active oxygen.

To this end, ion water groups including electrolyzers which electrolyze raw water such as tap water to generate alkaline water (alkaline ionized water) containing cationic minerals and acidic water (acidic ionized water) which are non-drinking water are separated and discharged.

In general, ionizers generate alkaline water and acidic water by electrolyzing raw water by applying a DC voltage to electrodes of the anode and cathode.

On the other hand, in the case of the ionizer, a filter unit is provided to filter the raw water introduced into the front end of the electrolytic cell in the same way as a normal water purifier.

The filter unit may include a plurality of filters, and may include, for example, a sediment filter, a sun carbon filter, a reverse osmosis membrane filter or an ultrafiltration filter, and a post carbon filter. In this case, the sediment filter serves to adsorb and remove solid particles such as suspended solid particles and sand contained in raw water, and the sun carbon filter is supplied with water passing through the sediment filter to absorb activated carbon. Through this, it functions to remove harmful chemicals and residual chlorine components such as volatile organic compounds, carcinogens, synthetic detergents and pesticides contained in water. In addition, the reverse osmosis membrane (RO) filter receives water filtered from a sun carbon filter and removes fine organic / inorganic substances such as heavy metals and other metal ions, bacteria, and viruses from the water through a membrane having fine pores. Done. Here, the reverse osmosis membrane filter discharges the living water generated during filtration of raw water, that is, waste water (commonly known as "concentrated water" in the art). In addition, an ultrafiltration (hollow fiber membrane, Ultrafiltration Filter, UF) filter may be used instead of the reverse osmosis membrane filter. The ultrafiltration filter is a pore filter having pores ranging from tens to hundreds of nanometers (nm) in size, and removes contaminants in water through the myriad of micropores distributed on the membrane surface. Then, the fucarbon filter has a function of adsorbing and removing unpleasant tastes, odors and pigments of the filtered water through the reverse osmosis membrane filter or the ultrafiltration filter.

The filter unit may be configured by varying the type and number according to the performance of the water purifier or ionizer, and a complex filter having two or more performances may be used.

On the other hand, the reverse osmosis membrane filter can filter up to filtration, disinfection, heavy metals, viruses, and monovalent cations, but the filtration performance is excellent, but there is a problem that water for living (concentrated water) is generated and a pressurization means such as a pump is needed. The ultrafiltration (hollow fiber membrane) filter does not generate any living water, but has a problem in that the filtration performance is significantly lower than that of the reverse osmosis membrane filter.

In view of these considerations, a nanofilter whose filtration performance is between the reverse osmosis membrane filter and the ultrafiltration filter may be used.

Among these nanofilters, nanofiber (fiber) filters are made of nanofibers and have a charge on their surfaces, and can filter out minerals, organic materials, metals, bacteria, DNA, and viruses. It can handle even micron to nano sized particles. In particular, since the nanofiber filter has a small pore of the membrane itself and a surface area as well as a charge compared to the volume, the nanofiber filter may have excellent performance in removing bacteria and viruses. In addition, the nanofiber filter has the advantage of not only water purification, but also a large amount of processing speed compared to the reverse osmosis membrane filter, and a large amount of water can be processed in a short time, as well as no water is discarded as concentrated water.

However, in the case of the nanofiber filter, similarly to the reverse osmosis membrane filter or the ultrafiltration filter, if a certain amount of filtration is performed, the filtration performance is lowered, and thus replacement is required.

Since the nanofiber filter is expensive, there is a problem in that a large replacement cost is required to maintain the filter.

Therefore, there is a need for a method that can be used for a long time by maximizing the replacement cycle of the nanofiber filter.

The present invention has been made to solve at least some of the problems of the prior art as described above, by regenerating the nanofiber filter of the ionizer and ionizer which can be recycled nanofiber filter that can increase the life and replacement cycle of the nanofiber filter An object of the present invention is to provide a nanofiber filter regeneration method.

In another aspect, an object of the present invention is to provide a nanofiber filter regeneration method of the ion water group and ion water groups capable of regenerating the nanofiber filter, which can effectively perform the regeneration of the nanofiber filter.

As one aspect for achieving the above object, the present invention is a filter unit for filtering the incoming raw water, the nanofiber filter having a charge; An electrolytic cell that electrolyzes the water filtered in the filter part to generate acidic water and alkaline water; And a filter regeneration unit for supplying the water discharged from the electrolytic cell to the nanofiber filter so that the nanofiber filter can be regenerated.

In addition, the ionizer capable of reproducing the nanofiber filter according to an embodiment of the present invention, the control unit for controlling the flow of water from the electrolytic cell to the nanofiber filter may further include; The controller may reversely drive the electrolytic cell to supply strong alkali water or strong acidic water to the nanofiber filter.

More preferably, the filter regeneration unit may be branched from an acidic water discharge passage during reverse cleaning of the electrolytic cell and regenerated flow passage connected to the nanofiber filter, and a regeneration oil passage converting the flow path to connect the acidic water discharge passage and the regeneration flow passage. A switching valve may be provided. On the contrary, the filter regeneration unit may include a regeneration flow path branched at the alkaline water discharge flow path and connected to the nanofiber filter during the reverse cleaning of the electrolytic cell, and a regeneration flow path switching valve for switching the flow path to connect the alkaline water discharge flow path and the regeneration flow path. It can be provided.

In this case, a pH measuring sensor for measuring the pH of the water supplied to the nanofiber filter may be provided in the regeneration flow path or the flow path connected to the nanofiber filter to supply strong alkaline water or strong acidic water corresponding to a predetermined pH.

In addition, in order to supply water to the nanofiber filter without using raw water pressure or to allow water of a higher flow rate than the raw water to be supplied to the nanofiber filter, the nanofiber filter may be connected to the regeneration flow passage or a channel connected thereto. A pump may be provided to smoothly supply water to the furnace.

On the other hand, the ionizer capable of reproducing the nanofiber filter according to an embodiment of the present invention, the bypass flow path for supplying the raw water introduced during the regeneration of the nanofiber filter to the electrolytic cell without passing through the nanofiber filter; It may include.

In this case, the bypass flow passage part may include a bypass flow path for supplying the raw water introduced into the electrolytic cell without passing through the nanofiber filter, and a bypass flow path switching valve for switching the flow path to supply the raw water to the bypass flow path.

Preferably, when the control unit supplies water from the electrolytic cell to the nanofiber filter for regeneration of the nanofiber filter, the control unit is provided to the electrolytic cell rather than during normal operation of the electrolytic cell or reverse driving only for reverse cleaning of the electrolytic cell. By applying a high voltage or a high current may be configured to provide a strong alkaline water or a strong acidic water to the nanofiber filter.

As another aspect, the present invention is a filter unit for filtering the incoming raw water, the nanofiber filter having a charge; An electrolytic cell that electrolyzes the water filtered in the filter unit to generate strong acidic water or strong alkaline water; And a filter regeneration unit for supplying strong acidic water or strong alkaline water withdrawn from the electrolytic cell to the nanofiber filter.

In this case, the strong acidic water or strong alkaline water may be generated by inverting and driving the electrolytic cell so that the nanofiber filter may be regenerated simultaneously with the reverse cleaning of the electrolytic cell.

The strong acidic water may have a pH of 4 or less, and the strong alkaline water may have a pH of 9 or more so that the nanofiber filter can be regenerated by discharging the trapped (adsorbed) material by losing the property of the charge of the nanofiber filter. Do.

In addition, the nanofiber filter may be configured as a nano alumina fiber filter as an example.

In still another aspect, the present invention provides a filter regeneration method of an ion water group including a filter unit including a charged nanofiber filter, and an electrolytic cell that generates acidic and alkaline water by electrolyzing the water filtered in the filter unit. A regeneration step of driving an electrolytic cell to generate strong alkaline water or strong acidic water, and supplying the generated strong alkaline or strong acidic water to the nanofiber filter; And a filter cleaning step of cleaning the nanofiber filter using water supplied from a raw water supply unit to the nanofiber filter upon completion of regeneration of the nanofiber filter.

Preferably, the regeneration step may be performed while inverting and driving the electrolytic cell so that the nanofiber filter may be regenerated simultaneously with the reverse cleaning of the electrolytic cell.

Also preferably, the regeneration may be performed while circulating water between the electrolytic cell and the nanofiber filter to produce strong alkaline water or strong acidic water corresponding to a predetermined pH.

The circulation of water between the electrolytic cell and the nanofiber filter may be performed until the pH of the water corresponds to a certain range.

Preferably, the regeneration step may be performed while allowing the raw water to flow into the electrolytic cell without passing through the nanofiber filter.

Also preferably, the regenerating step may generate strong alkaline water or strong acidic water by applying a high voltage or a high current to the electrolytic cell, rather than during normal operation of the electrolytic cell or a reverse driving operation only for reverse cleaning of the electrolytic cell.

In addition, in order to enable water to be supplied to the nanofiber filter without using raw water pressure, or to allow water of a higher flow rate than the raw water to be supplied to the nanofiber filter, the regeneration step may be withdrawn from the electrolytic cell. It may be configured to pressurize water to supply the nanofiber filter.

In addition, the strong acidic water is pH 4 or less, the strong alkaline water is pH 9 or more so that the nanofiber filter can be regenerated by discharging the trapped material by losing the properties of the charge of the nanofiber filter.

The nanofiber filter may be composed of, for example, a nano alumina fiber filter.

On the other hand, the filter cleaning step may be configured to clean both the nanofiber filter and the electrolytic cell by passing the raw water after passing through the nanofiber filter the electrolytic cell. In this case, the filter cleaning step may be performed in a state where power is not applied to the electrolyzer.

According to one embodiment of the present invention having such a configuration, by supplying the strong alkali water or strong acidic water generated in the electrolytic cell to the nanofiber filter, the properties of the electric charge of the nanofiber filter is lost, thereby collecting (adsorption) by the charge As the process of discharging the discarded material proceeds, the nanofiber filter can be regenerated. This can increase the lifespan and replacement cycle of the nanofiber filter and reduce the cost of replacing the filter.

In addition, by increasing the voltage or current supplied to the electrolytic cell, it is possible to generate strong alkali water or strong acidic water in the electrolytic cell, thereby improving the regeneration performance of the nanofiber filter.

In addition, by supplying the strong alkaline water or the strong acidic water generated by inverting the electrolytic cell to the nanofiber filter, it is possible to simultaneously achieve the regeneration of the nanofiber filter and the reverse washing of the electrolytic cell.

In addition, by circulating water between the electrolytic cell and the nanofiber filter, it is possible to generate strong alkaline water or strong acidic water at an appropriate pH.

1 is a schematic diagram showing the configuration of an ionizer according to a first embodiment of the present invention.
Figure 2 is a schematic diagram showing the flow of water in the normal operating mode in the ionizer shown in Figure 1;
Figure 3 is a schematic diagram showing the flow of water in the reverse washing mode in the ionizer shown in FIG.
Figures 4a and 4b is a schematic diagram showing the flow of water during the regeneration of the nanofiber filter in the ionizer shown in Figure 1, Figure 4a shows a regeneration step of regenerating the nanofiber filter, Figure 4b shows the nanofiber after the regeneration A filter cleaning step of cleaning the filter is shown.
5 is a schematic view showing a modified embodiment of the ionizer shown in FIG.
6 is a schematic view showing another modified embodiment of the ionizer shown in FIG.
Fig. 7 is a schematic diagram showing the configuration of the ionizer according to the second embodiment of the present invention.
8 is a schematic diagram showing the flow of water in the normal operating mode in the ionizer shown in FIG.
9 is a schematic diagram showing the flow of water in the reverse washing mode in the ionizer shown in FIG.
10A and 10B are schematic diagrams illustrating the flow of water during regeneration of the nanofiber filter in the ionizer shown in FIG. 7, FIG. 10A illustrates a regeneration step of regenerating the nanofiber filter, and FIG. 10B shows the nanofiber after the regeneration ends. A filter cleaning step of cleaning the filter is shown.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Furthermore, the singular forms "a", "an," and "the" include plural referents unless the context clearly dictates otherwise.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

First, the ionizer 100 capable of regenerating the nanofiber filter according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 6.

1 to 6, the ionizer 100 according to the first embodiment of the present invention includes a filter unit 110, an electrolyzer 130, and a filter regeneration unit 160, and an alkaline water extraction unit ( 140), the acidic water discharge unit 150 and the bypass flow path unit 170 may be further included. In addition, although not shown in the drawings, the ionizer 100 according to the present invention is at least a portion of the purified water tank, cold water tank, hot water tank for storing the water filtered in the filter unit 110, and the tanks, as in a conventional water purifier An extraction coke may be provided for extracting the received water.

Hereinafter, a configuration directly related to the ionizer 100 will be described. However, the ionizer 100 according to the present invention is provided with a conventional water purifier such as a tank type water purifier with a tank part and a direct type water purifier without a tank part. It will be possible to add this.

First, when the raw water shut-off valve V1 is opened and the raw water is introduced, the filter unit 110 filters the raw water introduced through at least one filter installed in the filter unit flow path L1.

At this time, the filter unit 110 is configured to include a nanofiber filter 120 that is charged, it is also possible to add other filters as necessary.

That is, the filter unit 110 may include only the nanofiber filter 120 having a charge, but may include a sediment filter, a sun carbon filter, a fu carbon filter, and the like. In this case, the type and number of filters provided in the filter unit 110 in addition to the nanofiber filter 120 may be changed according to the filtration method required for the ionizer or the filtration performance required for the ionizer. In addition, the order of the filters provided in the filter unit 110 including the nanofiber filter 120 may be changed as necessary. At least some of the above-described filters may be provided as composite filters, and microfilters MF or other functional filters may be provided in place of or in addition to the above-described filters.

For example, although FIGS. 1 to 6 show two filters 111 and 112 provided at the front end of the charged nanofiber filter 120, the front end and / or the nanofiber filter 120 is provided. The number or type of filters provided at the rear end may be variously changed.

On the other hand, when considering the filtration performance of the nanofiber filter 120 as described below, the front end of the nanofiber filter 120, for example, a sediment filter 111 and the carbon filter 112 may be provided.

The sediment filter 111 has a function of adsorbing and removing a relatively large particulate suspended matter, sand, and the like contained in raw water. Here, the front end of the sediment filter 111 may be provided with a raw water shut-off valve (V1) for selectively blocking the raw water supplied from the raw water supply, such as tap water, if the raw water shut-off valve The installation position of the V1 is not limited thereto, and may be installed in the middle of the filter unit 110.

In addition, the carbon filter 112 is supplied to the water passed through the sediment filter 111 through the adsorption method of activated carbon, volatile organic compounds, carcinogens, synthetic detergents, pesticides, etc. harmful to the human body in the water through the adsorption method of activated carbon and residual chlorine (for example, HOCl ^- or ClO ^-) as well as to remove the component, is the ability to adsorb and remove the unpleasant taste, odor, coloring, etc., it included in the water. Although the carbon filter 112 is illustrated as being provided at the front end of the nanofiber filter 120, it is also possible to be provided at both the front end and the rear end.

Meanwhile, as illustrated as an example in FIGS. 1 to 6, the rear end of the carbon filter 112 may be provided with a nanofiber filter 120 having a charge.

The nanofiber filter 120 is made of nano fiber as an address material, and has a charge on the surface, and is capable of filtering minerals, organic materials, metals, bacteria, DNA, viruses, etc. Even nano-sized particles can be processed.

In particular, the nanofiber filter has excellent performance in removing bacteria, viruses, and bacteria since the pores of the membrane itself are not only small but also charged. Moreover, in addition to the superior water purification capability described above, the nanofiber filter has an advantage in that it can process a large amount in a short time due to the large flow rate that can be treated compared to the reverse osmosis membrane filter, and there is no water that is discarded as concentrated water.

In particular, since the nanofiber filter has a charge, the nanofiber filter has an advantage of excellent removal of harmful substances such as bacteria, viruses, bacteria, etc., compared to the general nanofilter.

As such, the water filtered through the filter unit 110 flows into the tank unit such as the purified water tank and is stored therein, or through the electrolytic cell inlet flow path L3 without passing through the tank unit as shown in FIG. Can be supplied. Of course, although not shown in Figures 1 to 6, the water filtered through the filter unit 110 may be provided to the user through a separate flow path without passing through the electrolytic cell 130.

The electrolyzer 130 is an apparatus for generating acidic water (acidic ionized water) and alkaline water (alkaline ionized water) by electrolyzing water, and thus the detailed configuration of the electrolyzer 130 is known in various forms and types, and thus detailed description thereof will be omitted.

On the other hand, the electrolytic cell inflow passage (L3) in front of the electrolytic cell 130 may be provided with a flow sensor (FS) for measuring the flow rate. The controller (not shown) may be configured to control the voltage or current applied to the electrode of the electrolytic cell 130 through the flow rate measured by the flow sensor FS.

In the ionizer 100 having such a configuration, a normal operation mode (alkaline water extraction mode for drinking) is shown in FIG. 2. As shown in FIG. 2, the alkaline water generated in the electrolytic cell 130 is provided to the user through the alkaline water extraction unit 140 after passing through the alkaline water discharge passages L4 and L5, and the acidic water is the acidic water discharge passage L7. After passing through, L7 ') is discharged through the acidic water discharge unit 150. At this time, the acidic water discharged through the acidic water discharge unit 150 may be discarded as sewage, but the acidic water extraction coke 151 or the acidic water provided in the acidic acid discharge unit 150 for use for beauty purposes. It may be provided to the user through the facet 152 or the like.

Meanwhile, as shown in FIG. 3, reverse washing may be performed to clean the electrode provided in the electrolytic cell 130. This reverse washing is applied to the electrode of the electrolytic cell 130 of the opposite polarity to the normal operation mode shown in Figure 2, thereby alkaline water is discharged to the acid water discharge line (L7, L7 '), alkaline water discharge line Acidic water is discharged to (L4).

As such, the water generated during the reverse cleaning of the electrolytic cell 130 is not only ionized water having the opposite polarity, but also various foreign substances attached to the electrode are discharged and thus discarded as living water.

To this end, as shown in FIG. 3, the acidic water discharged through the alkaline water discharge passage L4 from the electrolytic cell 130 at the time of reverse washing is living through the washing passage L6 through the washing passage switching valve V4. Discharged into the water, it is also possible to be discarded through the acidic water discharge unit 150 connected to the cleaning passage (L6). In addition, the alkaline water discharged through the acidic water discharge passages L7 and L7 'from the electrolytic cell 130 at the time of reverse washing may be discarded into living water through the acidic water discharge unit 150.

In addition, the ionizer 100 according to the present invention includes a filter regeneration unit 160 for supplying the water discharged from the electrolytic cell 130 to the nanofiber filter 120 to enable regeneration of the nanofiber filter 120. can do.

The nanofiber filter 130 is charged, but may maintain or lose electrical ionic properties according to the change in pH due to the nature of the raw material. For example, in the case of a filter composed of positively charged nano alumina fibers, when the pH is 4 or less, or 9 or more, the nanofiber filter 120 loses the positive charge property and is trapped by the electrical property of the positive charge (adsorption). It is known to have the property of discharging the substance which was carried out.

Therefore, by supplying strong acidic water or strong alkaline water to the nanofiber filter 130, various materials trapped (adsorbed) to the nanofiber filter 130 can be separated from the nanofiber filter 120, and the nanofibers can be utilized using this property. The filter 120 can be regenerated.

To this end, the ionizer 100 according to an embodiment of the present invention generates strong acidic water or strong alkaline water through the electrolytic cell 130, and supplies it to the nanofiber filter 120 to regenerate the nanofiber filter 120 Has

At this time, in order to supply strong acidic water or strong alkaline water to the nanofiber filter 120, it is preferable to reverse-clean the electrolytic cell 130. That is, in the normal extraction process of the ionized water (alkaline water), since the ionized water of pH appropriate for the user's drinking should be provided, the voltage or current applied to the electrolytic cell 130 is limited to a predetermined appropriate value. Since it is difficult to generate strong acidic water, it is not suitable for regeneration of the nanofiber filter 120. Of course, it is also possible to generate strong alkali water or strong acid water by increasing the voltage or current applied in the normal ionized water extraction process without reverse washing, but to prevent the strong alkaline water from being extracted through the alkaline water extraction unit 140. For the regeneration of 120, it is preferable to generate strong alkaline water or strong acidic water in the reverse washing process. In particular, in the case of generating strong alkaline water or strong acidic water during the reverse washing process and supplying it to the nanofiber filter 120, there is an advantage that the reverse washing of the electrolytic cell 130 and the regeneration of the nanofiber filter 120 can be simultaneously performed. .

As such, the generation of the strong acidic water or the strong alkaline water may be performed by controlling the flow of water from the electrolytic cell 130 to the nanofiber filter 120 in the control unit (not shown). That is, the controller performs reverse cleaning by applying a power of opposite polarity to the electrode provided in the electrolytic cell 130, and controls the current or power applied to the electrode of the electrolytic cell 130 during reverse cleaning, and the electrolytic cell 130 The channel may be switched to supply the ionized water of one side discharged from the nanofiber filter 120.

On the other hand, in the case of supplying water from the electrolytic cell 130 to the nanofiber filter 120 for regeneration of the nanofiber filter 120, the control unit of the electrolytic cell 130 to generate a strong alkaline water or a strong acidic water It may be configured to apply a high voltage or a high current to the electrolytic cell 130 than in normal operation (when generating drinking ionized water) or a reverse drive only for reverse cleaning of the electrolytic cell 130.

1 and 4A, the filter regeneration unit 160 is branched from the acidic water discharge channel L7 when the inverting and cleaning of the electrolytic cell 130 is connected to the regeneration flow path L9 connected to the nanofiber filter 120. ), And a regeneration flow path switching valve (V3) for switching the flow path to connect the acidic water discharge passage (L7) and the regeneration flow path (L9).

In addition, the regeneration flow path (L9) or the flow path connected thereto may be provided with a pH measuring sensor (S) for measuring the pH of the water supplied to the nanofiber filter 120.

In addition, the ionizer 100 according to an embodiment of the present invention is a bypass flow passage for supplying the raw water introduced during the regeneration of the nanofiber filter 120 to the electrolytic cell 130 without passing through the nanofiber filter 120. And may further include 170. At this time, the bypass passage 170 is a bypass passage (L2) for supplying the introduced raw water to the electrolytic cell 130 without passing through the nanofiber filter 120, and to supply the raw water to the bypass passage (L2). Bypass flow path switching valve (V2) for switching the flow path may be provided.

Looking at the process of reproducing the nanofiber filter 120 through the filter regeneration unit 160 with reference to Figure 4a as follows.

First, the water introduced through the filter unit 110 is introduced into the electrolytic cell 130 through the bypass flow path L2 through the flow path switching of the bypass flow path switching valve V2. At this time, the alkaline water discharged through the acidic water discharge channel L7 due to the reverse washing of the electrolytic cell 130 is introduced into the nanofiber filter 120 through the regeneration channel L9 and discharged through the alkaline water discharge channel L4. The acidic water is discharged to the acidic water discharge part 150 through the cleaning flow path L6 through the flow path switching of the cleaning flow path switching valve V4.

In this case, when water is supplied from the electrolytic cell 130 to the nanofiber filter 120 for regeneration of the nanofiber filter 120, only for normal cleaning of the electrolytic cell 130 or for reverse cleaning of the electrolytic cell 130. Higher voltage or higher current may be applied to the electrolytic cell 130 than in reverse driving, and strong alkali water generated in the electrolytic cell 130 is introduced into the nanofiber filter 120 to perform regeneration of the nanofiber filter 120. .

As described above, in the case of a filter made of a positively charged nano alumina fiber, when the pH is 4 or less or 9 or more, sufficient regeneration of the nanofiber filter 120 is possible, and thus strong alkali flows into the nanofiber filter 120. The pH of water or strongly acidic water needs to be 4 or less or 9 or more.

Therefore, when the pH of the strong alkaline water (in the case of FIG. 4A) generated in the electrolytic cell 130 does not reach an appropriate pH through the introduced raw water, the nanofiber filter 120 is continuously performed while the reverse cleaning of the electrolytic cell 130 is continued. ) And the pH of the alkaline water can be set to 9 or more by allowing the circulation of alkaline water between the electrolyzer 130. The pH value of the alkaline water may be measured by the pH measuring sensor (S), and the control unit determines whether the electrolytic cell 130 is driven and the circulation of the alkaline water is continued based on the measured value.

On the other hand, as shown in Figure 4a, since the acidic water (living water) discharged into the alkaline water discharge passage (L4) of the ionized water introduced into the electrolytic cell 130 is discarded to maintain the amount of water flowing into the electrolytic cell 130 To this end, a predetermined amount of raw water may be introduced into the electrolytic cell 130. At this time, the raw water introduced into the bypass flow path unit 170 is combined with the alkaline water passed through the nanofiber filter 120 in the electrolytic cell 130 and supplied to the electrolytic cell 130, and thus the circulation of alkaline water supplied to the electrolytic cell 130 by circulation. The pH can be increased gradually. Through such a circulation process, strong alkaline water having a pH of 9 or more may be generated, and the strong alkaline water may be supplied to the nanofiber filter 120 to perform regeneration of the nanofiber filter 120.

As a modification of the first embodiment of the ionizer 100 according to the present invention, the regeneration flow path (L9) or the flow path connected thereto is provided with a pump (P) to smoothly supply the water to the nanofiber filter 120 Can be.

Specifically, as shown in FIG. 5, an alkaline water (strong alkaline water) supplied to the nanofiber filter 120 from the electrolytic cell 130 is provided with a pump P in the acid water discharge passage L7 connected to the regeneration passage L9. ) Can be applied to the pressure, thereby allowing the alkaline water supplied to the nanofiber filter 120 to smoothly flow into the electrolytic cell 130 regardless of the pressure of the raw water. In other words, if the pressure of the raw water is too high, the amount of alkali water discharged from the nanofiber filter 120 may be mixed with the raw water, thereby increasing the pH of the mixed water of the alkaline water and the raw water introduced into the electrolytic cell 130. Can be less. However, when the pressure is applied to the alkaline water (strong alkaline water) supplied from the electrolytic cell 130 to the nanofiber filter 120 through the pump P, the alkaline water introduced into the electrolytic cell inflow channel L3 from the nanofiber filter 120. The amount of can be maintained sufficiently, it is possible to increase the amount of increase of the pH of the mixed water of the alkaline water and the raw water flowing into the electrolytic cell 130.

As another modification of the first embodiment of the ionizer 100 according to the present invention, as shown in FIG. 6, a configuration that does not include the bypass flow path unit 170 is possible. As shown by the solid arrows, raw water flows into the electrolytic cell 130 after passing through the filter unit 110 and the electrolytic cell inlet flow path L3, and a high alkaline or strong acidic water is applied by applying a high voltage or a high current to the electrolytic cell 130. And may be generated, the strong ion water discharged through any one of the acid water discharge passage (L7) or alkaline water discharge passage (L4) can be supplied to the nanofiber filter 120. At this time, if a certain amount of raw water flows into the electrolytic cell 130 and then shuts off the valve V2 ', the strong ionized water through the electrolytic cell 130, the regeneration flow path L9, the nanofiber filter 120, and the electrolytic cell inflow flow path L3. In the circulation process, the ionized water may have a pH of 4 or less than 9 or more strong ionized water, thereby regenerating the nanofiber filter 120.

On the other hand, since some of the ionized water in the circulation process is drained through the cleaning passage (L6), the amount of ionized water introduced into the electrolytic cell 130 through the circulation may be reduced, but strong ionized water for a predetermined time through the driving of the pump (P). You can do a recursion to create it. Alternatively, if the amount of water circulated after a certain time decreases, it may be possible to temporarily open the valve (V2 ') to introduce some of the raw water.

In addition, although the positive voltage or the current for generating drinking ionized water may be applied to the electrolytic cell 130, when the power of the opposite polarity is applied to the electrolytic cell 130, the reverse cleaning and the nanofiber filter 120 of the electrolytic cell 130 are applied. ) Playback can be performed at the same time.

Regeneration of the nanofiber filter 120 as shown in Figure 4a is performed for a predetermined time, or until the pH of the strong alkaline water reaches a certain pH or after a predetermined holding time after reaching a certain pH and then regeneration Due to this, the cleaning operation of the nanofiber filter 120 may be performed to remove foreign substances remaining in the nanofiber filter 120.

Referring to FIG. 4B, when the inlet port of the filter unit flow path L1 and the nanofiber filter 120 are connected through the flow path switching of the bypass flow path switching valve V2, the raw water shutoff valve V1 is opened. It may be introduced into the electrolytic cell 130 through the fiber filter 120. In this case, the electrolytic cell 130 may not be driven or a positive power may be applied to the electrolytic cell 130 to perform the cleaning of the electrolytic cell 130. As such, the water used to clean the nanofiber filter 120 and the electrolytic cell 130 is performed. The silver may be drained into the household water through the cleaning passage L6 and the acidic water discharge passage V7 '.

By cleaning the nanofiber filter 120 and the electrolytic cell 130 as shown in Figure 4b it is possible to supply clean and safe water to the user.

Next, the ionizer 100 according to the second embodiment of the present invention will be described with reference to FIGS. 7 to 10B.

7 is a schematic diagram showing the configuration of the ionizer 100 according to the second embodiment of the present invention, Figure 8 is a schematic diagram showing the flow of water in the normal operation mode in the ionizer 100 shown in Figure 7, FIG. 9 is a schematic view showing the flow of water in the reverse washing mode in the ionizer 100 shown in FIG. 7, and FIGS. 10A and 10B are diagrams illustrating regeneration of the nanofiber filter 120 in the ionizer 100 shown in FIG. 7. 10A shows a regeneration step of regenerating the nanofiber filter 120, and FIG. 10B is a schematic diagram showing a filter cleaning step of cleaning the nanofiber filter 120 after the regeneration ends.

7 to 10B illustrate that the ionized water discharged from the alkaline water discharge channel L4 of the electrolytic cell 130 is converted through the regeneration flow path L9 through the flow path switching of the regeneration flow path switching valve V3 '. It is the same as the case of the first embodiment shown in Figs. 1 to 4B except that it is introduced into the fiber filter 120. Therefore, the same reference numerals are assigned to the same or corresponding components, and only the different configurations will be described in order to avoid unnecessary description.

First, as shown in FIG. 8, in the normal operation mode (alkaline water generation mode for drinking), the alkaline water generated in the electrolytic cell 130 passes through the alkaline water discharge passages L4 and L5 and then the alkaline water extraction unit 140. Is provided to the user through, the acidic water is discharged through the acidic water discharge unit 150 after passing through the acidic water discharge passage (L7).

In addition, as shown in FIG. 9, when reverse washing is performed to clean the electrode provided in the electrolytic cell 130, power of the opposite polarity of the electrode of the electrolytic cell 130 is applied, thereby causing the acidic water discharge line. Alkaline water is discharged to L7, and acidic water is discharged to the alkaline water discharge line L4. At this time, the water generated during the reverse cleaning of the electrolytic cell 130 is not only ion water of the opposite polarity, it is discarded as living water because various foreign substances attached to the electrode is discharged. Accordingly, as shown in FIG. 9, the acidic water discharged from the electrolytic cell 130 through the alkaline water discharge passage L4 at the time of reverse washing is transferred to the washing passage L6 through the passage switching of the washing passage switching valve V4. Is discharged into the living water through, the alkaline water discharged through the acidic water discharge passage (L7) may be discarded into the domestic water through the acidic water discharge unit 150.

7 to 10b, the filter regeneration unit 160 is branched from the alkaline water discharge channel L4 during the reverse cleaning of the electrolytic cell 130 to be connected to the nanofiber filter 120. L9 and a regeneration flow path switching valve V3 'for switching the flow path to connect the alkaline water discharge path L4 and the regeneration flow path L9.

Therefore, when the electrolytic cell 130 is reversely driven to regenerate the nanofiber filter 120, the acidic water discharged through the alkaline water discharge channel L4 is converted into a regeneration flow path through the flow path of the regeneration flow path switching valve V3 ′ ( It is introduced into the nanofiber filter 120 through L9).

7 to 10B, the ionizer 100 is configured to supply raw water introduced during regeneration of the nanofiber filter 120 to the electrolytic cell 130 without passing through the nanofiber filter 120. The bypass flow path unit 170 may be included. At this time, the bypass passage 170 is a bypass passage (L2) for supplying the introduced raw water to the electrolytic cell 130 without passing through the nanofiber filter 120, and to supply the raw water to the bypass passage (L2). Bypass flow path switching valve (V2) for switching the flow path may be provided.

Looking at the process of reproducing the nanofiber filter 120 through the filter regeneration unit 160 with reference to Figure 10a as follows.

First, the water introduced through the filter unit 110 is introduced into the electrolytic cell 130 through the bypass passage 170 through the passage of the bypass flow path switching valve (V2). At this time, the acidic water discharged through the alkaline water discharge channel (L4) due to the reverse cleaning of the electrolytic cell 130 is passed through the regeneration flow path (L9) through the regeneration flow path switching valve (V3 ') of the nanofiber filter 120 It is introduced into, and the alkaline portion discharged through the acidic water discharge passage (L7) is discharged to the acidic water discharge unit 150 via the washing flow path (L6).

In this case, when the reverse cleaning of the electrolytic cell 130, high voltage or high current may be applied to generate strong alkaline water or strong acidic water, and the strong acidic water generated in the electrolytic cell 130 may flow into the nanofiber filter 120 and the nanofiber filter 120 Will be played. At this time, the pH of the strongly acidic water flowing into the nanofiber filter 120 from the electrolytic cell 130 is preferably 4 or less so that the regeneration of the nanofiber filter 120 is performed smoothly.

Therefore, when the pH of the strongly acidic water generated in the electrolytic cell 130 does not reach the proper pH through the introduced raw water, the reverse cleaning of the electrolytic cell 130 is continued, while the nanofiber filter 120 and the electrolytic cell 130 are interposed. By allowing the acidic water to circulate, the pH of the acidic water can be made 4 or less.

And, as shown in Figure 10a, since the alkaline water discharged into the acidic water discharge passage (L7) of the ionized water introduced into the electrolytic cell 130 is discarded as living water, raw water needs to continue to flow. At this time, the raw water introduced into the bypass flow path unit 170 is combined with the acidic water passed through the nanofiber filter 120 in the electrolytic cell 130 is supplied to the electrolytic cell 130, and thus the acid supplied to the electrolytic cell 130 by circulation The pH of the water can be lowered gradually. Through such a circulation process, strong acidic water of pH 4 or less may be generated, and the strong acidic water may be supplied to the nanofiber filter 120 to perform regeneration of the nanofiber filter 120.

On the other hand, in the second embodiment of the present invention, although not shown separately, as shown in FIG. 5, the pump (so that the water to the nanofiber filter 120 is smoothly supplied to the regeneration flow path (L9) or the flow path connected thereto) P) may be provided, and similarly to the case of FIG. 6, a configuration that does not include the bypass flow path 170 may be possible. 5 and 6 are also applicable to the second embodiment of the present invention shown in FIGS. 7 to 10B, and thus detailed descriptions thereof will be omitted.

As such, the regeneration operation of the nanofiber filter 120 as shown in FIG. 10A is performed for a predetermined time, or until a pH of the strong acidic water reaches a certain pH, or for a predetermined holding time after reaching the predetermined pH. Afterwards, the cleaning operation of the nanofiber filter 120 may be performed to remove foreign substances remaining in the nanofiber filter 120 due to regeneration.

Referring to FIG. 10B, when the inlet port of the filter unit flow path L1 and the nanofiber filter 120 are connected through the flow path switching of the bypass flow path switching valve V2, and the raw water shutoff valve V1 is opened, the raw water may be nano. It may be introduced into the electrolytic cell 130 through the fiber filter 120. At this time, the electrolytic cell 130 may not be driven or a positive power may be applied to the electrolytic cell 130 to perform the cleaning of the electrolytic cell 130. Thus, the nanofiber filter 120 and the electrolytic cell 130 may be used for cleaning. Water may be drained into domestic water through the cleaning passage (L6) and acidic water discharge passage (L7).

Finally, referring to FIGS. 4A, 4B, 5, 6, 10A, and 10B, a method of regenerating the nanofiber filter 120 of the ionizer 100 according to another aspect of the present invention will be described.

Nanofiber filter 120 regeneration method according to an embodiment of the present invention, as described above, the filter unit 110 having a nanofiber filter 120 that is charged, and in the filter unit 110 The present invention relates to a method for regenerating a nanofiber filter 120 in an ionizer (100) having an electrolytic cell (130) for generating acidic and alkaline water by electrolyzing filtered water.

Specifically, the nanofiber filter 120 regeneration method according to an embodiment of the present invention, as shown in Figure 4a, 5, 6 and 10a, by driving the electrolytic cell 130 to the strong alkali water or strong acidic water Regeneration step of generating and supplying the generated strong alkaline or strong acidic water to the nanofiber filter 120, and as shown in Figure 4b and 10b, the nanofiber filter at the completion of the regeneration of the nanofiber filter 120 Supplying raw water to the 120 includes a filter cleaning step for cleaning the nanofiber filter 120.

4A, 5, 6, and 10A, the regeneration step includes flowing the introduced raw water into the electrolytic cell 130 through the filter unit 110 and then driving the normal or reverse washing operation of the electrolytic cell 130. The ionized water generated by the supplied water is supplied to the nanofiber filter 120 through the regeneration flow path L9 through the flow path switching of the regeneration flow path switching valves V3 and V3 '.

In this case, the regeneration step is more preferably performed while the electrolytic cell 130 is reversely driven so that the nanofiber filter 120 can be regenerated simultaneously with the reverse cleaning of the electrolytic cell 130. As described above, when performing reverse washing, alkaline water is supplied to the nanofiber filter 120 through the acidic water discharge channel L7 in the embodiment shown in FIGS. 4A, 5, and 6, and illustrated in FIG. 10B. In the present embodiment, the acidic water is supplied to the nanofiber filter 120 through the alkaline water discharge channel L4.

Preferably, in order to regenerate the nanofiber filter 120, strong alkali water or strong acidic water corresponding to a predetermined pH needs to be supplied to the nanofiber filter 120. For example, in the case of a filter composed of a positively charged nano alumina fiber, when the pH is 4 or less or 9 or more, the nanocharger loses the positive charge property of the nanofiber filter and collects (adsorbs) the material by the electrical property of the positive charge. Because of the nature of discharging, it is preferable that strongly acidic water having a pH of 4 or less and strong alkaline water having a pH of 10 or more are supplied to the nanofiber filter 120.

At this time, if a strong acidic water of pH 4 or less or strong alkaline water of pH 10 or more can be immediately generated by applying a high voltage or a high current to the electrolytic cell 130, it may be advantageous for regeneration of the nanofiber filter 120, but in order to implement such characteristics, The specification of the electrode and the power supply unit provided at 130 may be undesirably high because it is unnecessary to generate ionized water for drinking.

Therefore, the regeneration step is preferably performed while circulating water between the electrolytic cell 130 and the nanofiber filter 120 to generate strong acidic water or strong alkaline water. That is, when acidic water is supplied to the electrolytic cell 130 as shown in FIG. 4A than when raw water is introduced into the electrolytic cell 130, it is possible to generate stronger acidic water, and this circulation process is performed for a predetermined time. By doing so, strong acidic water having an appropriate pH (or appropriate pH range) required for regeneration of the nanofiber filter 120 can be obtained. Similarly, as shown in FIG. 10B, even when alkaline water is supplied to the nanofiber filter 120, the circulation process is performed for a predetermined time so that the proper pH (or proper pH range) required for the regeneration of the nanofiber filter 120 is achieved. Strong alkaline water can be produced. At this time, the pH measurement of the ionized water may be performed by the pH measuring sensor (S) shown in Figure 4a, etc., applying a predetermined voltage or current to the electrolytic cell 130, driving the electrolytic cell 130 for a predetermined time and When the circulation of the ionized water is performed, it is also possible that the pH measuring sensor S is not provided.

Meanwhile, in the regeneration step, since strong acidic water or strong alkaline water must be supplied to the nanofiber filter 120, it is preferable that raw water does not flow into the nanofiber filter 120. Therefore, it is preferable that the regeneration step allows raw water to flow into the electrolytic cell 130 without passing through the nanofiber filter 120.

To this end, as shown in Figures 4a, 5 and 10a, the bypass flow path (L2) and bypass flow path switching valve (V2) so that the raw water flows into the electrolytic cell 130 without passing through the nanofiber filter 120 It may include.

However, as shown in FIG. 6, after the predetermined amount of raw water is introduced, the electrolytic cell 130 is operated and the ionized water is circulated between the electrolytic cell 130 and the nanofiber filter 120 in a state in which the raw water is blocked. In this case, it is also possible not to include the bypass passage L2.

In addition, in order to quickly perform the regeneration of the nanofiber filter 120, it is preferable to generate a high pH alkali water or a low pH acidic water by applying a high voltage or a high current to the electrolytic cell 130. To this end, the regeneration step, by applying a high voltage or high current to the electrolytic cell 130 than during normal operation of the electrolytic cell (130 when generating drinking ionized water) or the reverse drive only for the reverse cleaning of the electrolytic cell 130 It can be configured to produce strong alkaline water or strong acidic water.

In addition, in order to enable the supply of water from the electrolytic cell 130 to the nanofiber filter 120 without using the raw water pressure, the regeneration step is to pressurize the water discharged from the electrolytic cell 130 to the nanofiber filter 120 It may be configured to supply to. In addition, when a lot of raw water is introduced into the electrolytic cell 130, since the pH of the acidic water supplied to the electrolytic cell 130 may be much higher or the pH of the alkaline water may be lowered to be close to neutral, water is discharged from the nanofiber filter 120 Preferably, a small amount of raw water is mixed with the ionized water introduced into the electrolytic cell 130. For this purpose, the water discharged from the electrolytic cell 130 may be pressurized and supplied to the nanofiber filter 120. This pressurization operation, as shown in Figure 5 may be performed by the pump (P) installed in the flow path connecting the outlet side of the electrolytic cell 130 and the nanofiber filter 120.

As such, when the regeneration of the nanofiber filter 120 is completed, foreign substances and residual ionized water remaining in the nanofiber filter 120 and / or the electrolytic cell 130 are removed to clean and proper pH when the user extracts the ionized water later. It is necessary to allow the ionized water to be extracted.

To this end, the filter cleaning step as shown in Figs. 4b and 10b can be performed.

In the filter cleaning step, as shown in FIGS. 4B and 10B, raw water passes through the filter unit 110 and the nanofiber filter 120 provided therein, and then passes through the electrolytic cell 130 to the nanofiber filter ( 120 and the electrolytic cell 130 is preferably configured to clean both. At this time, it is preferable that all the water discharged from the electrolytic cell 130 is discharged to the living water so that the water used for cleaning the nanofiber filter 120 and the electrolytic cell 130 is not provided to the user through the alkaline water extraction unit 140. .

On the other hand, since the water discharged from the filter cleaning step is discharged into the domestic water is preferably carried out in the state that the power is not applied to the electrolytic cell (130).

As described above, the filter cleaning step discharges foreign substances and ionized water remaining in the nanofiber filter 120 through the introduced raw water, and the raw water close to neutral contacts the nanofiber filter 120, so that the nanofiber filter 120 The electrical characteristics lost in the regeneration phase are restored, thereby recovering the characteristics of the nanofiber filter 120.

While the invention has been shown and described with respect to particular embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as set forth in the claims below. I want to make it clear.

110 ... filter 111 ... sediment filter
112 ... Carbon filter 120 ... Nanofiber filter
130 ... electrolytic cell 140 ... alkaline water extraction unit
150 ... Acid water outlet 151 ... Acid water extraction coke
152 ... acid water faucet 160 ... filter regenerator
170 ... bypass flow section F ... connecting member
FS ... flow sensor L1 ... filter part flow path
L2 ... bypass flow path L3 ... electrolytic cell inflow passage
L4, L5 ... Alkali water drainage channel L6 ... Washing channel
L7, L7 '... with acid water drain L9 ... with recycled oil
P ... Pump S ... pH Sensor
V1 ... Raw Water Shutoff Valve V2 ... Bypass Flow Valve
V3, V3 '... Regenerative flow path switching valve V4 ... Cleaning flow path switching valve

Claims (23)

A filter unit for filtering the introduced raw water and having a charged nanofiber filter;
An electrolytic cell that electrolyzes the water filtered in the filter part to generate acidic water and alkaline water; And
A filter regeneration unit for supplying water discharged from the electrolytic cell to the nanofiber filter to enable regeneration of the nanofiber filter;
Ionizer capable of reproducing the nanofiber filter comprising a. The method of claim 1,
And a control unit for controlling the driving of the electrolytic cell and the flow of water from the electrolytic cell to the nanofiber filter.
The control unit reversely drives the electrolytic cell to supply strong alkaline water or strong acidic water to the nanofiber filter. The method of claim 2,
The filter regeneration unit may include a regeneration flow path branched from an acid water discharge flow path and connected to the nanofiber filter during reverse cleaning of the electrolytic cell, and a regeneration flow path switching valve for switching the flow path to connect the acid water discharge flow path and the regeneration flow path. An ionizer capable of regenerating a nanofiber filter, characterized in that. The method of claim 2,
The filter regeneration unit may include a regeneration flow path branched at the alkaline water discharge flow path and connected to the nanofiber filter during reverse cleaning of the electrolytic cell, and a regeneration flow path switching valve for switching the flow path to connect the alkaline water discharge flow path and the regeneration flow path. An ionizer that can regenerate a nanofiber filter. The method according to claim 3 or 4,
The regeneration flow path or the flow path connected thereto is ion water reactor capable of regenerating the nanofiber filter, characterized in that the pH measuring sensor for measuring the pH of the water supplied to the nanofiber filter. The method according to claim 3 or 4,
The regeneration flow path or the flow path connected thereto is a water ionizer capable of regenerating the nanofiber filter, characterized in that the pump is provided so as to smoothly supply the water to the nanofiber filter. The method of claim 2,
A bypass flow passage for supplying raw water introduced during regeneration of the nanofiber filter to the electrolytic cell without passing through the nanofiber filter;
Ionizer capable of regeneration of the nanofiber filter, characterized in that it further comprises. The method of claim 7, wherein
The bypass flow passage part comprises a bypass flow path for supplying the raw water introduced into the electrolytic cell without passing through the nanofiber filter, and a bypass fiber flow switching valve for switching the flow path to supply the raw water to the bypass flow path. Water ionizer capable of regeneration. The method of claim 2,
When the controller supplies water from the electrolytic cell to the nanofiber filter for regeneration of the nanofiber filter, the control unit has a higher voltage or higher current in the electrolytic cell than in normal operation of the electrolytic cell or in reverse driving only for reverse cleaning of the electrolytic cell. Ionizer for regeneration of the nanofiber filter, characterized in that to provide a strong alkaline water or strong acidic water to the nanofiber filter by applying a.
A filter unit for filtering the introduced raw water and having a charged nanofiber filter;
An electrolytic cell that electrolyzes the water filtered in the filter unit to generate strong acidic water or strong alkaline water; And
A filter regeneration unit for supplying strong acidic water or strong alkaline water withdrawn from the electrolytic cell to the nanofiber filter;
Ionizer capable of reproducing the nanofiber filter comprising a. The method of claim 10,
The strong acidic water or strong alkaline water is an ionizer capable of regenerating the nanofiber filter, characterized in that generated by driving the electrolytic cell inverted. 12. The method according to any one of claims 2 to 11,
The strong acidic water is pH 4 or less, the strong alkaline water is pH 9 or more ion water group capable of regeneration of the nanofiber filter, characterized in that. 12. The method according to any one of claims 1 to 11,
The nanofiber filter is a regenerator of the nanofiber filter, characterized in that consisting of a nano alumina fiber filter.
A filter part comprising a charged nanofiber filter and an electrolytic cell for generating acidic and alkaline water by electrolyzing water filtered by the filter part, the method comprising:
A regeneration step of driving the electrolytic cell to generate strong alkaline water or strong acidic water, and supplying the generated strong alkaline water or strong acidic water to the nanofiber filter; And
A filter cleaning step of washing the nanofiber filter by using water supplied from a raw water supply unit to the nanofiber filter upon completion of regeneration of the nanofiber filter;
Nanofiber filter regeneration method of the ionizer containing a. 15. The method of claim 14,
The regeneration step is a nanofiber filter regeneration method of the ionizer characterized in that it is performed while driving the electrolytic cell inverted. 16. The method of claim 15,
Wherein said regenerating step is performed while circulating water between said electrolyzer and said nanofiber filter to produce strong alkaline water or strongly acidic water. 17. The method of claim 16,
The circulation of water between the electrolyzer and the nanofiber filter is performed until the pH of the water corresponds to a certain range. 15. The method of claim 14,
The regeneration step is performed while the raw water is introduced into the electrolytic cell without passing through the nanofiber filter. 16. The method of claim 15,
The regeneration step may include applying strong voltage or high current to the electrolyzer to generate strong alkaline water or strongly acidic water than during normal operation of the electrolytic cell or reverse driving only for reverse cleaning of the electrolytic cell. . The method according to any one of claims 16 to 18,
The regeneration step is a method for regenerating the nanofiber filter of the ionizer, characterized in that to pressurize the water discharged from the electrolytic cell to the nanofiber filter. 20. The method according to any one of claims 14 to 19,
The strong acidic water is pH 4 or less, the strong alkaline water is pH 9 or more characterized in that the nanofiber filter regeneration method. The method according to any one of claims 14 to 18,
The nanofiber filter is a nanofiber filter regeneration method, characterized in that consisting of a nano alumina fiber filter. 20. The method according to any one of claims 14 to 19,
In the filter cleaning step, raw water passes through the nanofiber filter and passes through the electrolytic cell, thereby cleaning both the nanofiber filter and the electrolytic cell.

Images