KR880000940Y1 - A clean water device using filter module - Google Patents

Abstract

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Description

Water Purifier Using Water Filtration Module

1 and 2 are a partially cutaway longitudinal cross-sectional view and a plan view, respectively, of a module containing U-shaped hollow hollow fiber bundles.

3 and 4 are a partially cut-away cross-sectional view and a plan view of a module wool housed in a porous hollow fiber, the other end of which is closed.

FIG. 5 is a schematic cross-sectional view showing an example of an integer modulus having a hollow fiber membrane modulus as in FIG.

6 shows a simple water purifier with the integer module of FIG.

7 and 8 are modification examples of the simple water purifier according to the present invention.

9 is a cross-sectional view showing a part of a simple water purifier in which the position of the integer modulus is determined by screwing.

10 is a schematic sectional view showing a water purifier according to still another modification.

* Explanation of symbols for main parts of the drawings

1 hydrophilic porous hollow fiber membrane 2 hydrophobic portion of porous hollow fiber membrane

3: Connection fixing part of cross section 4: Hollow fiber membrane filtration modulus outer cylinder

5: adsorbent modulus 6: hollow fiber membrane filtration modulus

7: Modulus connection member 8: Normal body

9 adsorbent 10, 11 filter

13 connection flow path 14 check valve

15: enlarged connection flow path 17: cover (cap)

18: pressure extractor 19: pressurizing device

20: water purification container 21: water purification module

25: activated carbon charging unit 26, 28: treated inlet

27: Purification outlet

The present invention relates to a water purifier using a water purifying seedling duo.

Recently, the deterioration in water quality of tap water is remarkable, and it is pointed out that an adverse effect on health and a deterioration of taste are pointed out by containing organic substances such as phthalic acid ester or excessively containing ions such as alkaline earth metal.

In addition, securing drinking water in developing countries, underdeveloped countries, and other affected areas is an important task. In particular, in the above-mentioned countries, not only E. coli but also infectious diseases such as S. aureus, cholera, and Tiffus can be contained in the beverage procedures. Therefore, there is a great demand to remove organic substances, rice bran components and bacteria from the beverage.

Conventionally, a device using activated carbon as a water purifier is directly connected to a faucet to adsorb and remove impurities in the tap water, an unpleasant odor causing substance, a crystallizer that softens hard water using an ion exchange resin charging tower, or a reverse osmosis method. Pure water manufacturing equipment for purifying water is known, but activated carbon absorbs chlorine, which is a sterilizing component in tap water, and loses sterilizing effect. Rather, bacteria grow in the purifier, and the bacteria are mixed into the water that should be purified. Has the drawback.

The ion exchange resin only removes ions in the water, and neither bacteria nor nonionic impurities can be removed, so that the equality in the purifier may be increased as described above.

In addition, the purification of water in an activated carbon purifier or an ion exchange resin packed column requires a pump, and thus, purified water cannot be obtained anywhere.

In addition, reverse osmosis does not require a large apparatus or high pressure generating means to obtain purified water easily.

In addition, a simple water purifier is proposed to treat water from lakes, swamps, ponds or streams during emergencies such as earthquakes and other disasters. 것이) It is treated with a disinfectant such as soda, but the smell of the disinfectant is strong, so dissolved organic substances are permeated, so even if sterilized, it can get very tasteless water.

Filling activated carbon in a thin tubing and placing a bacteriostatic flat membrane at one end to filter the water with a syringe or a manual pump, or with such a pump, it is impossible to obtain sufficient permeation due to the flat membrane to stop bacteria. In this case, there is a problem that the permeability is further lowered, and it cannot be said that it has sufficient performance.

In order to solve the above deficiency, a water purifier combining a hollow fiber module, activated carbon and an ion exchange resin unit has been proposed. However, the conventional hollow fiber membrane modulus for the whole amount of aqueous liquid filtration is composed only of a hydrophilic membrane, and when gas is sucked from the liquid inlet side, the gas mixed at a normal pressure, for example, a pressure of about 1 kg / cm 2 does not pass easily through the membrane. There is a drawback that the gas is agglomerated, and the gas is impeded to prevent permeation of water and the filtration efficiency as a whole of the membrane is lowered.

In the partially filtered membrane module, the mixed gas may come out of the system together with the unfiltered filtrate, but in the fully filtered membrane module, the gas mixed in the modulus cannot come out of the system. It may be in a state that cannot be filtered, and I was struggling with the measures.

As a countermeasure (1), the gas is degassed in advance so that gas is not mixed in the liquid. (2) The flow of the liquid in the filter is allowed to flow from the top to the bottom so that the entrained gas does not get stuck at the top and interfere with the filtration of the liquid.

(3) Means of removing the gas mixed on the upper inlet side to the outside of the system are considered, but the method of degassing the gas in the liquid in advance requires a large-sized tank, a vacuum pump, etc. This method has the drawback that when a large amount of gas is mixed, it also causes a decrease in filtration efficiency.

The method of installing the gas gutter and the gas extraction cock is to increase the capacity of the modulus compared to the amount of the liquid, and to increase the dead space, and to reduce the gas gutter to frequently remove the gas by using the cock. There was inconvenience that required troublesome labor to have to do. There was also the inconvenience of always paying attention to the amount of water to be filtered so as not to accidentally mix gas.

Thus, the purpose of this paper is to provide a water purifier using an adsorbent modul, which is a hollow desert modul for liquid filtration that can be easily pulled out without interfering with the filtration of the liquid, even if the gas is mixed by mistake. There is.

In this paper, the open end is kept open and the U-shaped or the other end is sealed while the end is potted. The porous hollow in the whole filtration hollow fiber membrane modulus containing the inside of the hollow hollow fiber A hollow fiber membrane filtration module is used, characterized in that the yarn consists of a porous hollow fiber membrane having a hydrophobic portion in at least part of the membrane surface, and a hydrophilic porous hollow fiber membrane.

As the porous hollow fiber having a hydrophobic portion in at least part of the membrane surface used in the present article, polyolefin-based, fluorocarbon-based, polyester-based, EVA-based, polyamide-based, and the like can be used.

As hydrophilic porous hollow fiber membranes, cellulose-based, PVA-based or hydrophobic porous hollow-fiber membranes described above are temporarily hydrophilized with alcohols, surfactants, etc., and the surface is grafted with a hydrophilic monomer or coated with a hydrophilic polymer. Various hydrophilic porous hollow fiber membranes can be used, such as those which are hydrophilic in a semi-permanent manner.

In addition, it is preferable that pyrogen and endotoxin can be prevented as this porous hollow fiber.

Using a polyolefin porous hollow fiber can remove organic substances, such as a phthalic ester.

The pore size, porosity, film thickness, etc. of the porous hollow fiber may be appropriately selected depending on the object of filtration.

In particular, a porous hollow fiber membrane having a transmittance of 1 / m 2 and min at a water pressure of 1 kg / cm 2 is preferable.

As a method of forming a porous hollow fiber consisting of a porous hollow fiber membrane having a hydrophobic portion and a hydrophilic porous hollow fiber membrane at least part of the membrane surface, the hydrophobic porous hollow fiber membrane and the hydrophilic porous hollow fiber membrane as described above may be bundled into one, or the whole may be hydrophilized in advance. It is also possible to bundle the hydrophobic porous hollow fiber membranes, which may be stored inside the housing, for example, to form a modulus, and to return a portion of the hollow fiber to hydrophobicity. By installing a hydrophobic portion in a part of the hollow fiber membrane in the modulus, gas entering the modulus passes through the membrane in the hydrophobic portion without interfering with the membrane surface, so that the filtration efficiency does not have to be reduced.

The distribution state of the hydrophobic portion in the hollow hollow fiber may be uniform, and the hydrophobic portion may be island or stripe, but it is more preferable that the hydrophobic portion is disposed on at least a portion of the outer peripheral portion in the hollow fiber. This is because in the hollow fiber modulus, the hollow fiber is more dense at the center of the hollow than the outer periphery, and the gas is more likely to break between the outer hollow and the outer cylinder of the hollow fiber. There is a reason. In addition, the position of the hydrophobic portion may be located anywhere in the upper and lower, but because the gas is lighter than the liquid specific gravity, it is preferable to have a hydrophobic portion in the upper portion when squeezed by the modulus. Therefore, when the hydrophobic hollow fiber membrane is hydrophilized and partially returned to hydrophobicity, it is preferable to hydrophobize only the focusing portion and the vicinity of the focusing portion.

As a method of partially hydrophobizing, for example, the modulus using the porous hollow fiber membrane hydrophilized with a hydrophobic hollow fiber membrane is placed so that the focusing part is placed upward, and water is extracted by gravitational dropping of water from the modulus. Next, the modulus may be placed so that the focusing part is upward, and for example, alcohol may be added to the extent that the entire porous hollow fiber membrane is sufficiently wetted, followed by blowing compressed air at a pressure of about 1 kg / cm 2 from the upper side.

The alcohol then enters the porous hollow fiber membrane and mixes with the water in the membrane to go out of the system through the porous hollow fiber membrane and instead air enters the membrane to dry and hydrophobize the portion of the membrane. Alcohol is hydrophobized from the smallest resistance point through the hollow fiber membrane, that is, near the focusing part, and at the same time, the focusing part is also hydrophobized.

The ratio of the hydrophobic portion to the total film area can be adjusted by the time of pressurizing the air.

In addition, as a method of arranging the porous hollow fiber membrane having a hydrophobic portion in at least a part of the membrane surface only at least a portion of the outer peripheral part of the hollow fiber, a hydrophobic porous hollow fiber membrane may be disposed around the hydrophilic hollow fiber or in the hollow fiber at the time of partial hydrophobization. May be made relatively dense and only minority of the surrounding part may be obtained. The ratio of the hydrophobic portion to the entire hollow fiber membrane depends on the viscosity of the aqueous liquid to be treated and the amount of gas present in the liquid, but is preferably 0.2 to 10. Even if it is 10 or more, the gas extraction effect is not so much increased, but rather, the hydrophilic membrane portion for filtering the aqueous liquid is not so much preferable. Below 0.2%, the effect of degassing is insufficient, which is undesirable.

Next, the present invention will be described in more detail according to the accompanying drawings.

1 to 4 are examples of modulus in which the hydrophobic portion is placed on the outer periphery of the hollow hollow fiber of the present invention, and FIGS. 1 and 2 are closed at the other end of FIG. 3 and 4 at the U-shaped porous hollow fiber. It is a modulus housed in a porous hollow fiber.

2 and 4 are plan views and FIGS. 1 and 3 are partially cutaway longitudinal cross-sectional views.

In the figure, 1 denotes a hydrophilic porous hollow fiber membrane, 2 denotes a hydrophobic portion of the porous hollow fiber membrane, 3 denotes a focusing fixed portion of a cross section, and 4 denotes a hollow fiber membrane filtration module outer shell. The middle and high desert filter filtration wool (6) has an open end made of a porous hollow fiber membrane having a hydrophobic portion (2) on at least a portion of the membrane surface and a hydrophilic porous heavy sand (1) in an open state, such as urethane. It is made of U-shaped or potable hollow hollow fiber sealed at the other end.

When water flows from the bottom up into the modulus, the entrained gas moves upwards between the hollow fiber and the outer cylinder having a larger gap than the hollow fiber and the hollow fiber having a small gap, and permeates the membrane to the hydrophobic part 2 therebetween. It is discharged out of the modulus. The gas reaching the top of the modulus also penetrates the membrane to the hydrophobic portion 2 around it and is discharged out of the modulul.

On the contrary, even if water flows from the top to the bottom, not only is used in the same manner as the conventional modulus, but also the gas is released from the hydrophobic part even if a large amount of gas enters for any reason, thereby reducing the filtration efficiency at least. In addition, even when the modulus is used horizontally, the gas escapes from the hydrophobic portion corresponding to the upper portion thereof, and there is no deterioration in the filtration efficiency.

As described above, the modulus used in the present paper is industrially superior in that there is no deterioration in filtration efficiency at the time of gas mixing, which does not require degassing of the liquid to be filtered, and no concern about air mixing at the time of filtration. This is a module for whole filtration.

FIG. 5 is a schematic cross-sectional view showing an example of an integer modulus having a hollow fiber membrane filtration module similar to those of FIGS. 1 and 2.

The purified water modulus used in this paper is basically composed of an adsorbent modulus 5, a hollow fiber membrane filter modul 6, and a modulus connecting member 7. Although these modules 5 and 6 and modulus connecting member 7 may be formed integrally, adsorbents such as activated carbon and ion exchange resins generally have a shorter usable period than hollow fibers, so that these members can be attached and detached. Therefore, it is preferable that the end of the service life is freely attached and detached so that only the end-of-life members can be replaced.

The adsorbent modulus 5 is filled with at least one or more adsorbents 9 selected from activated carbon, ion exchange resins, and silver-impregnated particles in the interior of the ordinary body 8, and these adsorbents 9 form this modul wool. The upper and lower opening ends of the ordinary body 8 are sealed by the filters 10 and 11 so as not to leak from the (5). It is preferable that at least the activated carbon is contained in the adsorbent 9, and it is suitable to use the thing of about 8-40 mesh as a particle size of activated carbon. As an ion exchange resin, any of anion exchange type and cation exchange type can be used, and spherical or amorphous thing of about 20-50 mesh which is commercially available is used.

In addition, silver impregnated activated baths and various silver impregnated fine particles are used as the silver impregnated particles, and these are not only adsorptive powers but also sterilizing powers. These adsorbents may be mixed in various forms and may be fractionally charged according to the type of adsorbent.

Filters 10 and 11 have a mesh that is thinner than at least the adsorbent 9, which is about 40 to 120 mesh, and generally about 70 mesh is used. A lot of offers are desirable. In particular, the filter 11 provided between the adsorbent modulus 5 and the modulus connecting member 7 has reinforcement made of metal or resin around it to secure a wide flow path area and to reduce the pressure loss in the purified water modulus. Is effective not to increase.

On the other hand, as described above, the hollow fiber membrane filtration modulus 6 may be the same as that of FIG. 1 or the same as that of FIG.

In addition, in the case of using a hydrophilic membrane temporarily hydrophilized by alcohol or the like as a hydrophilic hollow fiber membrane, the hollow fiber membrane is in a state in which the hollow fiber membrane filtration module 6 is always filled with water since the water permeability decreases when left in a dry state for a long time. It is desirable to have. Therefore, it is preferable to take a form of use such that the adsorbent modulus 5 is disposed downward and the hollow fiber membrane filtration module 6 is disposed thereon through a check valve.

In the purified water modulus used in the present invention, the adsorbent modul (5) and the hollow fiber membrane filtration modulus (6) are connected in series, and the water to be purified is the adsorbent modul (5) and the hollow fiber membrane filtration modulus (6). Although used in the form of passing in the order of the modulus connecting member 7 is provided between the connection between the modul.

The connection between the adsorbent modulus 5 and the hollow fiber membrane filtration modulus 6 may be directly connected to each other by, for example, a 0 ring 12 or a screw, an adhesive, or the like, as shown in FIG. ), The modulus connecting member 7, the modul connecting member 7, and the hollow fiber membrane filtering module 6 may be separately connected.

The modulus connecting member 7 is provided with a connecting passage 13 which is a water passage between these woolen wools of water to be purified, and the water in the hollow fiber membrane filtration module 6 is absorbed into the absorbent modulus (13). 5) A check valve 14 is provided to prevent the flow back. As the check valve 14, various types of things can be used, but for example, a simple structure having a place where a cutoff is provided in a closed elastomeric tub can be suitably used. In view of the fact that such a check valve 14 needs to be provided in the connection passage 13, the cross-sectional area of the connection passage 13 must necessarily be made smaller.

When the filter 11 is brought into direct contact with the connection flow passage 13 having such a small cross-sectional area, the filter 11 is gradually brought about by the adsorbent in the undifferentiated adsorbent modulus 5 or the suspended matter present in the purified water in case of emergency use. The clogging causes a small passage cross-sectional area, and the filtration pressure gradually increases so that it cannot be easily filtered by manual pressing means.

In the modulus connecting member 7 of the purified water modulus used in this paper, the filter 11 provided on the hollow fiber membrane filtration modulus 6 side of the adsorbent modulus 5 and the connection passage 13 are connected. An enlarged connecting passage 15 having an inner diameter of the check valve 14 provided in the flow passage 13, that is, an inner diameter of at least two times or more of the inner diameter of the portion of the connecting passage 13 that has the smallest cross-sectional area is provided. It is preferable that the inner diameter of the enlarged connection flow path 15 is as large as possible, and preferably 5 times or more, more preferably 10 times or more of the inner diameter of the check valve 14.

For example, when the inside diameter of the check valve 14 is 2.3 mm, it is good to set it as about 40 mm. The length (channel length) of the enlarged connection channel 15 is also related to the inner diameter size of the enlarged connection channel 15, but it is required to be at least 0.3 mm or more, and if it is shorter than this, the filter 11 is bent due to the filtration pressure. When this occurs, the filter 11 directly contacts the low-speed flow path 13, thus eliminating the meaning of providing an enlarged connection flow path. It is appropriate that the enlarged connection flow path 15 has a length of about 0.3 to 10 mm.

Also, the filter 10 on the lower inlet side of the adsorbent modulus 5 is provided with a void of 0.3 mm or more between the adsorbent-filled porous plate 16 provided as desired, and the filter as in the case described above. It is a preferred form of the purified water wool of the present invention to secure a wide sectional area of filtration in (10).

6 is a simplified water purifier having the purified water module of FIG. 5, and when the pressurizing device 19 having the pressure extracting mechanism 18 attached to the cover 17 is operated, purified water filled in the purified water container 20 is shown. Is filtered through the inside of the purified water modulus 21 used in this article, and purified water is obtained from the purified water outlet 22.

Filtration performance of the hollow fiber membrane filtration module is used by installing a modulus connection member with a connection flow path and a check valve and an expansion connection flow path between the adsorbent module wool and the hollow fiber membrane filtration module as described above. It is possible to suppress the increase in the filtration pressure of the whole water purification module while maintaining a high level, and exhibits excellent characteristics as a filtration module for a simple water purifier.

7 and 8 show examples of the simple water purifier in this paper. In the figure, 20 denotes a container, 21 denotes a water purification module, 17 denotes a cover of an opening of the vessel 20, 19 denotes a pressurizing device, 22 denotes a purification water outlet, and 18 denotes a pressure extraction mechanism.

7 shows an example of the water purification modulus 21 on the outside of the vessel 20, in which case there is a side pipe 23 on the lower side of the vessel 20 and its end is connected to the bottom inlet of the water purification module so as to be attached and detached. It is.

The side pipe has a valve that opens only when an opening cock or a water purification module is attached, and it is preferable that the water in the container is not leaked in a detached state. The opening provided in the upper part of the container 20 has a wide inlet so that it can be poured into a suitable container from a river, a pond, a lake and a swamp in case of an emergency, or a cold water can be injected into the cooling water for making whiskey to be diluted by drinking water. It is desirable.

The lid 17 is sealable of the opening, and the lid 17 is perforated, and the pressure device 19 is hermetically attached to the hole.

8 is an example in which the constant modulus 21 is accommodated in the container 20.

The position of the side pipe 23 in FIG. 7 and the position of the lower inlet of the purified water modulus 21 in FIG. 8 should be close to the bottom of the container to effectively use the water in the container when the purified water is clean. It is preferable.

However, in the case of water containing dirt or sedimentary suspended matter such as water in ponds or streams, they may accumulate on the bottom of the container and may be blocked from the bottom of the container because the entrance to the bottom of the side pipe 23 or the purified water module 21 may be blocked. It is desirable to have.

It is also possible to prepare a mold having a different height from the bottom of the container 20 for each use, but it is desirable to be able to change the height from the bottom in accordance with the water quality with a single integer module.

For example, in Fig. 7, a plurality of side pipes having different heights from the bottom can be provided to connect the purified water modules to the side pipes 23 having appropriate heights in accordance with the water quality. In the example of FIG. 8, the water purifier may be arbitrarily selected by the frictional resistance between the rubber and the passage of the purified water modulus 21, for example, by using an elastic body such as rubber as the periphery of the insertion hole of the lid 17 for inserting and supporting the purified water modul 21. It is possible to fix the airtight at the position of and to keep the airtight even under pressure at the time of crystallization, and as shown in FIG. A female screw suitable for this may also be provided in the constant modulus insertion hole of (17) so that the position from the bottom can be arbitrarily set by screwing.

A prefilter may be provided at the side inlet part in FIG. 7 and the bottom inlet of the purified water modulus in FIG. 8 so as not to enter the purified water modulus such as dust.

In the example of FIG. 7, the prefilter may be a bag having a size almost the same as the container content in close contact with the inner wall of the container, for example, in the example of FIG. 7, or in the example of FIG. A pocket containing at least a portion may be used.

The water purifier in this article puts water to be purged from the opening of the container 20 into the container, closes the cover 17, attaches the purified water module 21, and repeatedly compresses the pressurizing device 19 to the required degree in the container 20. When pressurized, water is preferably removed from the prefilter by large dust, sand, etc., and enters from the lower part of the purified water module 21. Preferably, the odor and taste components are adsorbed by activated carbon and ion exchange resin, Contaminants such as bacteria and colloids More preferably, purified water from which exothermic substances have also been removed is provided for beverages and cooking. The activated carbon and the ion exchange resin may be filled in the purified water module and the other may be filled in the container 20 as it is or in a permeable bag.

In addition, when ice and water are placed in the container 20, cold water free from taste, smell, bacteria, and pyrogenic substances is obtained, and is particularly suitable as a beverage for diluting with whiskey or the like.

10 is a schematic sectional view showing a water purifier according to another modification. In this example, an example in which activated carbon is used as the adsorbent will be described. This water purifier is basically the activated carbon filled container 25 loaded in the container 20 and the user 20, and the hollow fiber membrane filter module 6 and hollow same as those in FIG. 1 fitted to the container 25. It consists of the filtered water outlet 22 connected to the purification | cleaning water outlet of the said container 20 through the yarn filtration membrane film wall. The activated carbon filling container 25 and the hollow fiber membrane filtration modulus 6 are preferably freely attached to and detached from the container 20 so that only the end-of-life members can be replaced.

The container 20 constituting the purified water main body had a water inlet 26 to be treated at a portion located below when actually used as a water purifier, and had a purification outlet 27 at the upper portion thereof.

In FIG. 10, although the inlet 26 to be processed is provided at the bottom of the vessel 20, the purge outlet 27 is provided at the top of the vessel 20, but these may be provided on the side of the vessel 20. As shown in FIG.

However, the treated water inlet 26 needs to be installed at least at a position lower than the treated water inlet 28 of the activated carbon filling container. The container 20 is preferably formed as a pressure resistant container capable of withstanding the water pressure of tap water.

In addition, the container 20 is not necessarily constituted by one member, and in FIG. 10, the purification outlet 27 is disposed in the upper cap (cover) 17 fitted to the container 20, and the water inlet is to be treated. 26 is formed by the inside of the to-be-processed water inlet part 29 similarly fitted to the container 20, and the upper cover 30 and the lower cover 31 are attached.

The activated carbon filling container 25 loaded in the container 20 is generally formed in a shape having a recess 32 in the center portion. This activated carbon filling container 25 had an inlet 28 to be processed at the top of two and its outlet 33 in the central recess 32. Although the return part 32 is provided in FIG. 19 as a thing of normal shape, it is not necessarily limited to this form. However, it is preferable that the hollow fiber membrane filtration modulus 6 is provided in a shape such that at least half of the volume of the hollow fiber membrane filtration module 6 can be sealed and fitted.

The activated carbon 34 is filled in the container 25, but other adsorbents or fungicides such as ion exchange resins or silver precipitated activated carbon may be added to the activated carbon and filled. As the activated carbon 34 to be filled, various types of ones can be used, but as the particle diameter thereof, one having a diameter of about 8 to 40 mesh is suitable.

By using the activated carbon filling container 25 in such a configuration, the activated carbon filling container 25 and the hollow fiber membrane filtering module 6 can be constituted as a compact, and the amount of activated carbon 34 and the activated carbon packed layer The cross sectional area can be made large and the pressure loss in the activated carbon layer can be minimized. For example, if the charging capacity of the activated carbon filling container 25 is about 400 cc, it depends on the quality of tap water, but adsorption treatment by activated carbon of tap water of about 4 tons is possible.

The hollow fiber membrane filtration modulus 6 fits into the recess 23 of the activated carbon filling container 25, for example, through a screw groove 36, so that its inlet 37 is sealed to the outlet 33 of the activated carbon filling container. On the other hand, the outlet 38 thereof is connected in a sealed state by interposing a purge outlet 27 with a screw groove 39, for example. The complex 40 installed at the bottom of the activated carbon filling container 25 is adapted to the screw fitting of the activated carbon filling container 25, the hollow fiber membrane filtration module 6, the hollow fiber membrane filtration module 6, and the purified water outlet 27. It is laid out for convenience.

As the hollow fiber membrane filtration modulus 6, those shown in FIG. 1 or FIG. 3 are used.

Filtrate water outlet 22 is connected to the purification outlet 27 of the vessel 20 via a hollow fiber filtration membrane wall, but this zero fruit water outlet 22 is free to rotate at least 60 degrees, preferably 180 degrees. It is desirable to be. In the example of FIG. 10, the filtered-water outlet 22 is comprised by the upper cap 17 and the upper cover 30, and is comprised by the structure which can be rotated horizontally.

When the filtrate water outlet 22 is installed as freely rotating, it is very convenient because it is possible to freely select the waterproofness of the purified water from the water purifier when actually using it at home.

In the long-life period of FIG. 10, the purification process of tap water is performed by the following process. The water treatment inlet 26 of the water purifier is connected through a rubber hose having a cock of the tap water and a safety valve operated at a pressure of, for example, 2 kg / cm 2 or more, and the tap of the water is opened by opening the cock of the water tap. 26) into the water purifier. When the water purifier is used for the first time, the treated water inlet 26 is installed below the vessel 20, and thus the treated water introduced into the vessel 20 is gradually charged from the lower side, and the level of the treated water is activated carbon filling container ( It rises to the position of the to-be-processed water inlet 28 of 25). After the treated water is raised to this position, the treated water flows into the activated carbon filling container 25 and the air 41 stays upward from the treated water inlet 28 of the activated carbon filling container in the container 20. Will remain.

As the water to be treated passes through the activated carbon layer from the upper side to the lower side, impurities in tap water, substances causing unpleasant odors, and chlorine ions contained as sterilizing agents are adsorbed and removed. The treated water having passed through the activated carbon layer is then introduced into the hollow fiber membrane filtration module 6 from the outlet 35 of the activated carbon filling container, where passage of impurities or bacteria that do not have adsorption to the activated carbon 34 is prevented and thus The microfiltered treated water is waterproofed from the purified water outlet 22 through the treated outlet 27 from the outlet 38 of the hollow fiber membrane filtering module as purified water.

On the other hand, once the tap water is introduced into the water purifier, the treated water existing in the treated water retention part 42 in the container 20 is adsorbed by the chlorine remaining in the activated carbon filling container 25 due to the presence of the air layer 41. It is blocked from the treated water removed.

In most water purifiers known in the art, when the use of the water purifier is stopped, the water to be treated in the container 20 and the activated carbon layer are not blocked and the water to be treated remains in the water purifier. Chlorine was removed in contact with the activated carbon layer by diffusion and had no bactericidal action.

Therefore, once bacteria grew in the activated carbon layer, the whole water purifier became a breeding space of bacteria when the water purifier was stopped. However, in the water purifier of FIG. 10, chlorine remains in the water retained in the treated water retaining part 42, so the breeding space of the bacteria is only the activated carbon layer, and thus the hollows of the organic matter decomposed by the bacteria and once adsorbed to the activated carbon layer. It is possible to reduce the throughput for the desert filtration modulus 6, thereby delaying the clogging of the hollow fiber filtration membranes.

According to the water purifier of FIG. 10, since the retained water in the water-retained portion in the water purifier has bactericidal properties, it is possible to reduce the breeding space of bacteria in the water purifier, and as a result, the conventional filtration resistance of the hollow fiber filtration membrane is delayed. In addition, since the activated carbon filling container is formed to minimize the pressure loss of the activated carbon layer, at least a period of time when the activated carbon has an adsorptive capacity, the microfiltered water can be waterproofed from the water purifier as a smooth water stream.

In addition, it is a very convenient water purifier for home use because it is composed of a compact body of activated carbon filling container and hollow fiber membrane filtration modulus, and the filtered water outlet for refining water is freely rotated.

Claims (1)

It consists of a container 20 having an opening in the upper part and a cover 17 capable of sealing the opening of the container 20, and a purified water module 21 which is attached to and removably connected to the inside of the container. A pressurization device 19 with a check valve having a mechanism 18 is attached to communicate with the inside of the container, and the hollow hollow fiber bundle 1 and 2 which focuses on the end while keeping the open end open. The hollow fiber inner wool (6) formed by fixing the inside of the body (4) by the fixing member (3) and the adsorbent modulus (5) formed by storing the adsorbent (9) inside the body (8). And a connection flow path 13 in which a check valve 14 is arranged at the connection portion between the hollow fiber membrane modulus 6 and the adsorbent modulus 5, and the adsorbent modulus 5 A filter 11 is provided on the side of the hollow fiber modulus 6, and the filter 11 and the connection passage 13 An enlarged connecting flow path 15 having an inner diameter of 2 to 20 times the inner diameter of the check valve 14 is provided between the porous hollow fiber membrane and the hydrophilic porous hollow fiber membrane having the hydrophobic portion 2 on the membrane surface of the porous hollow yarn. The water purifier characterized by using all the water filtration wool (21) consisting of (1).