JP2006035214A - Filter cartridge for water cleaning system and filter housing assembly provided with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a filter cartridge for a water cleaning system capable of keeping the concentration of functionally effective ingredients constant which are added to cleaned water through the water cleaning system to give a specific functionality thereto, and to provide a filter housing assembly for the water cleaning system using the filter cartridge. <P>SOLUTION: The filter cartridge includes a cylindrical housing which holds a filtering medium containing functionally effective ingredients and a pair of caps connected to the upper and lower ends of the housing. The upper and lower caps comprise a minute inlet and outlet formed thereon, respectively which have each a prescribed proportioned cross section. The upper cap includes on its periphery a circumferential recess on which a sealing ring to be hermetically contacted with and sealed in the inside wall of the filter housing is rested, also includes a circumferential sealing rim with its upper part projecting whose diameter is somewhat larger than that of the cylindrical housing, and includes a bypass outlet for the inflow water immediately adjoining to the circumferential sealing rim. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

   The present invention relates to a water purification system, and more particularly, a filter for a water purification system capable of maintaining a constant concentration of a functional active ingredient added to give specific functionality to purified water purified by the water purification system. The present invention relates to a cartridge and a filter housing assembly for a water purification system employing the cartridge.

  In general, the water purification system is roughly classified into a water purification filter that is classified into a hollow fiber membrane filter and a reverse osmosis membrane filter. These filters are known to have excellent purification capacity against inflowing water such as tap water. However, these active water filters are also filtered by filtering various active ingredients in the purified water based on such powerful purification capacity. Water that has been purified from a water purification system that employs water has low antibacterial properties, pH compatibility, mineral content, etc., and such properties cannot be adjusted, so that it is not suitable as functional water.

  In order to overcome this problem, a ball is usually used so that the active ingredient is eluted or dissolved in the process of water purification for antibacterial properties, pH compatibility, functional minerals, etc. A functional filter cartridge with a built-in active ingredient-containing substance is used in the water purification system. The ball-shaped body having the above active ingredients is a silver compound that releases silver ions for antibacterial enhancement, a natural stone that contains hydroxide compounds that release hydroxide ions for pH adjustment, and various active mineral ingredients, and far-infrared radiation. Including natural stone.

  The configuration of such a functional filter cartridge assembly according to the prior art is presented in FIG.

  Referring to FIG. 1, a functional filter housing assembly 10 of the prior art is provided in a hollow cylindrical external filter housing 10a having a purified water inlet 11 and an outlet 13 at each end, and the functionality. A large number of ball-shaped bodies 15 having active ingredients are incorporated, and a filter cartridge 10b for purifying the inflow water or functionalizing the purified water through the ball-shaped body 15 is included.

  The outer filter housing 10a and the inner filter cartridge 10b are completely sealed by at least one circumferential seal member 14a, and the inflow water flowing in through the inflow port 11 passes through the inner filter cartridge through the non-woven filter 12b to form a ball-shaped body. The functional active ingredient is contained while being in contact with the non-woven fabric filter 12b and the outlet 14 of the inner cartridge, and then flows out to the outlet 13 of the outer filter housing.

  A filter assembly according to the related art similar to the above is disclosed in Japanese Patent Application Laid-Open No. H10-228707.

  However, the structure of the functional filter cartridge assembly is such that various active ingredients contained in the ball-shaped body incorporated in the internal filter cartridge are not eluted or dissolved at a constant concentration during the water purification process. The excessive content is dissolved or dissolved, the dissolution or solubility gradually decreases, and elution or dissolution is not performed after a certain period of time, and the final purified water contains excessive specific active ingredients, It will bring about adverse effects such as deficiency.

Korean Utility Model Application No. 20-1996-29338

   The present invention has been devised in order to solve the above-mentioned problems of the prior art, and its purpose is to provide a certain amount of purified water that passes through an internal filter cartridge containing an active ingredient and an external filter housing. A functional filter cartridge for a water purification system configured to retain an ingredient and undergo a long-term water purification process, so that the content change of the active ingredient is not large, or a filter housing assembly for a water purification system incorporating a functional filter cartridge There is to offer.

  To achieve the above object, the present invention provides a water purification system filter cartridge that can be incorporated in an external filter housing assembly, a cylindrical housing containing a filter material having a functional active ingredient, and an upper and lower end of the housing. A cap portion coupled to the upper cap portion, each of the upper and lower cap portions is formed with a minute outflow portion and an inflow portion having a predetermined cross-sectional area ratio, and the upper cap portion is sealed around the inner wall of the external filter housing A sealing recess having a circumferential recess on which a sealing ring to be contacted is seated and having a slightly larger diameter than the cylindrical housing and having a protruding circumferential sealing rim and a bypass outlet for inflow water adjacent to the circumferential rim; A filter cartridge for a water purification system is provided.

  According to another embodiment of the present invention, a filter cartridge for a water purification system that can be incorporated in an external filter housing assembly, a cylindrical housing containing a filter material having a functional active ingredient, and upper and lower ends of the housing The upper and lower cap parts are each formed with a minute outflow part and an inflow part having a predetermined cross-sectional area ratio, and the upper cap part is in surface contact with the inner wall of the external filter housing. As described above, for a water purification system, an upper protruding circumferential rim having a slightly larger diameter than the cylindrical housing and at least one inflow water bypass outlet that is closest to the circumferential rim are formed. Provide a filter cartridge.

  According to another embodiment of the present invention, a water purification system filter cartridge that can be incorporated in an external filter housing assembly, a cylindrical housing containing a filter material having a functional active ingredient, and upper and lower ends of the housing The upper and lower cap portions are each formed with a minute outflow portion and an inflow portion having a predetermined cross-sectional area ratio, and the upper cap portion is surrounded by the inner wall of the external filter housing. An upper protruding circumferential rim having a diameter that is the same as or slightly larger than that of the cylindrical housing so as to provide an inflow water bypass / outflow space in the cylindrical housing of the filter cartridge. Characterized in that at least one fixing rib is formed to be tightly fixed to the inner wall. To provide a filter cartridge for a water purification system.

  According to another aspect of the present invention, the present invention provides a filter housing assembly incorporating the filter cartridge of the above-described embodiment, and a hollow cylindrical outer housing incorporating the filter cartridge, and the outer housing. A filter housing assembly for a water purification system is provided, which includes upper and lower end cover caps that are respectively separably or integrally coupled to the upper and lower portions of the upper and lower ends, and that respectively have an outlet and an inlet.

  According to another aspect of the present invention, the present invention provides a filter housing assembly including the filter cartridge according to the above-described embodiment, a hollow cylindrical intermediate housing including the filter cartridge, and the intermediate housing. Upper and lower intermediate cover caps that are respectively separably or integrally connected to the upper and lower portions of the upper and lower portions, and are formed with circumferentially protruding outlets and inlets, an outer housing that surrounds the intermediate housing, and an intermediate portion between the upper and lower parts of the intermediate housing. The upper and lower outer cover caps are respectively connected to the upper and lower portions of the outer housing so as to cover the circumferentially protruding outlet and the inlet of the cover cap so as to be separable or integrally with each other, and each have an outlet and an inlet. A filter housing assembly for a water purification system is provided.

  According to one embodiment of the present invention, the filter housing assembly for water purification system further includes a hollow fiber membrane filter cartridge at one of the upper and lower portions of the filter cartridge containing the filter material having the active ingredient. It is characterized by.

  According to an embodiment of the present invention, the filter housing assembly for a water purification system has functional active ingredients different from each other in at least one of an upper part and a lower part of a filter cartridge containing a filter material having an active ingredient. It further comprises at least one filter material.

  According to an embodiment of the present invention, the filter housing assembly for a water purification system has functional active ingredients different from each other in at least one of an upper part and a lower part of a filter cartridge containing a filter material having an active ingredient. It further comprises at least one filter material and a hollow fiber membrane filter cartridge.

  According to an embodiment of the present invention, the cross-sectional area ratio between the minute outflow portion provided in the upper cap of the filter cartridge and the inflow water bypass outlet is in the range of 1: 1000 to 1000: 1. Features.

  According to an embodiment of the present invention, the filter material built in the filter cartridge is composed of a pH adjusting ball or an amorphous shape body that contains a hydroxide compound and elutes hydroxide ions. To do.

  According to an embodiment of the present invention, the filter material incorporated in the filter cartridge is composed of an antibacterial ball that contains a silver compound and elutes silver ions, or an amorphous shape.

  According to an embodiment of the present invention, the filter material built in the filter cartridge is composed of a mineral component adjusting ball or an amorphous shape body that contains a mineral component beneficial to the human body and elutes an effective mineral component. It is characterized by that.

  According to the above-described configuration, the present invention is that the raw water or purified water passing through the filter cartridge containing the functional active ingredient retains a certain content of the active ingredient, and the content of the active ingredient is maintained through a long-term water purification process. There is an effect that it is possible to provide a filter cartridge for a water purification system configured so that the change is not large and a filter housing assembly for a water purification system employing the same.

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

  2a is a longitudinal sectional view of a filter housing assembly fitted with a filter cartridge according to the present invention, FIG. 2b is a detailed view of the filter cartridge in the filter housing assembly of FIG. 2a, and FIG. It is the longitudinal cross-sectional view and top view of the filter housing assembly with which the filter cartridge of other embodiment of the kind was mounted | worn.

  Referring to these drawings, a filter cartridge 100 for a water purification system according to the present invention includes a cylindrical housing containing a filter material 15 having a functional active ingredient, and cap portions (120b, 120a) coupled to upper and lower ends of the housing. Including. At this time, the upper cap portion 120b may be formed as a single unit with the cylindrical housing.

  The lower cap portion 120a is separably coupled to the cylindrical cartridge housing, or is completely hermetically welded so as not to be separable, and a minute inflow portion 125a (shown in FIG. C portion) and support portions 121a at regular intervals in the peripheral direction.

  The minute inflow portion 125a has a funnel-shaped inclined portion where raw water or purified water flows in, and a minute passage 125a 'projects into the cartridge.

  The upper cap part 120b has a micro-outlet part 125b (refer to part A) in a form corresponding to the micro-inflow part 125a of the lower cap part at a center part thereof, and a support part 121b spaced apart at a constant interval around the micro-outlet part. And an outermost circumferential rim (refer to part B).

  Similar to the micro inflow portion 125a, the micro outflow portion 125b has a funnel-shaped inclined portion where the purified water converted into functional water by the functional active ingredient filter material inside the cartridge is a funnel-shaped inclined portion. A minute passage for discharging the functional purified water is formed outside, and the passage sectional area of the minute outflow portion 125b is smaller than or equal to the passage sectional area of the minute inflow portion 125a.

  The above-mentioned circumferential rim (circumferential outer ring portion or circumferential outer edge portion) is a structure for sealingly connecting the cartridges to the outer filter housing assembly or closely contacting the inner surface of the outer filter housing assembly when the cartridge is mounted on the outer filter housing assembly. And protrudes in the same or slightly radial direction as the cartridge housing.

  The circumferential rim can be configured in various forms, and the circumferential rims of different embodiments are illustrated in FIGS. 2b and 3.

  Referring to FIG. 2b, the circumferential rim is a sealing circumferential rim for hermetically fastening the filter cartridge when the filter cartridge is mounted in the outer filter housing assembly. The sealing circumferential rim includes two (a pair of upper and lower) circumferential rims. It consists of a circumferential protrusion 123 and a circumferential recess 127a formed between the protrusions, and a sealing ring 127b is inserted into the recess (recess or recess), and (afterwards) the cartridge is mounted in the filter assembly housing. When bonded, it is sealed.

  Adjacent to the circumferential rim, at least one inflow water bypass outlet 120h is formed along a certain radius from the center of the upper cap portion, which is the inner wall of the filter housing assembly when the cartridge is mounted in the filter housing assembly. Since the sealing circumferential rim that is hermetically coupled to the cartridge protrudes slightly in the radial direction from the cylindrical portion of the cartridge body, it is between the inner wall of the filter housing assembly and the outer wall of the cylindrical portion of the cartridge body that is built in the filter housing assembly. This is a bypass outlet for allowing the inflowing water to immediately flow out through the formed flow space 115s without passing through the filter cartridge. At this time, a recess 129 is formed in the upper end portion of the cartridge housing in order to ensure a flow path of the inflowing water immediately below the outlet 120h, and the purified water flows out to the outlet 120h through this recess.

  According to another embodiment of the present invention shown in FIG. 3, the circumferential rim of the upper cap part is composed of upper-projecting circumferential rims 123 ′ and 123 ″ having a constant height. At least one inflow water bypass outlet 120h ′ or an inflow water bypass circumferential outlet 120h ″ is formed along 123 ′ or inside the circumferential rim 123 ″ with a constant radius at the center of the upper cap portion. ing.

  At this time, when the filter cartridge is built in the outer filter housing, the circumferential rims 123 ′ and 123 ″ are attached to the inner wall of the outer filter housing while being in surface contact with each other or with a space between them. The structure for attaching a separate sealing member for hermetic coupling with the filter housing assembly is not employed.

  Specifically, one of the circumferential rims 123 ′ is fixed to the filter housing assembly by being in surface contact with the inner wall of the filter housing when the filter cartridge is incorporated in the outer filter housing assembly. The other circumferential rim 123 ″ is separated from the inner wall of the external filter housing assembly with the inflow water bypass circumferential outlet 120h ″ in between, so that the filter cartridge is tightly fastened or brought into contact with the external filter housing assembly. The filter cartridge housing main body is provided with a separate contact fixing rib 115a for fixing, and this contact rib is preferably composed of three ribs spaced apart in the circumferential direction (FIG. Only one is shown).

  The filter material having the functional active ingredient is beneficial to a ceramic ball for pH adjustment that contains a hydroxide compound and elutes hydroxide ions, or an antibacterial ceramic ball that contains silver compounds and elutes silver ions, or to the human body. It may be a ceramic ball for mineral component adjustment that contains various mineral components and elutes effective mineral components, and the inflow and outflow portions of the cartridge are very small and the flow inside the cartridge is also small, so it flows into the cartridge The purified raw water or purified water is always in a high concentration state in which the hydroxide ions or antibacterial silver ions eluted from the functional material filled in the cartridge or mineral components beneficial to the human body are always saturated to the maximum. .

  The filter cartridge 100 described above can be easily applied to a predetermined part of the water purification system. The filter housing assembly as shown in FIGS. 2a and 2b or the intermediate housing and the outermost part as shown in FIG. Mountable within a filter housing assembly comprised of a housing.

  In such a filter housing assembly, a cylindrical outer housing 100h containing a cartridge 100, an end cap 130c having an outflow portion 130 at the upper and lower portions of the housing, and an end cap having an inflow portion 110 are separably or integrally coupled. The

  The filter cartridge 100 is provided in the outer housing 100h of the cartridge assembly with upper and lower flow spaces 130s, 110s and side circumferential flow spaces 115s, and the outer housing 100h is sealed by a sealing circumferential rim of the upper cap 120b of the filter cartridge 100. It is hermetically coupled to the inner wall of the.

  Accordingly, a part of the raw water or purified water flowing into the lower flow space 110s through the inflow portion 110 flows into the cartridge 100 through the micro inflow portion 125a of the filter cartridge 100 and is contained in the functional filter material in the cartridge. In a state where the active ingredient is contained at the maximum concentration, it is discharged to the upper flow space 130s through the minute outflow portion 125b.

  Further, the remaining part of the raw water or the purified water flowing into the lower flow space 110s through the inflow portion 110 does not pass through the filter cartridge 100, and the upper cap portion of the filter cartridge 100 through the flow space 115a at the cartridge side circumferential portion. 120b is discharged into the upper flow space 130s through the inflow water bypass outlets 120h, 120h ′, 120h ″.

  At this time, the functional purified water that has flowed into the cartridge 100 through the minute inflow portion 125a of the filter cartridge 100 and contained the functional active ingredient having a high concentration is also discharged through the minute outflow portion 125b. It is a very small amount compared to the amount of raw water or purified water that does not contain functional active ingredients discharged through the space 115s and the bypass outlets 120h, 120h ′, 120h ″. By being mixed again in the flow space 130s, it is treated as a functional water having an appropriate concentration as a whole, and the flow ratio of these two classifications is that of the micro outflow portion 125b and the bypass outlets 120h, 120h ′, 120h ″. The concentration of functional active ingredients should be adjusted appropriately for these two cross-sectional areas as determined by the cross-sectional area ratio. It can be more variously changed.

  The cross-sectional area ratio between the minute outflow portion and the bypass outlet is preferably 1: 1000 to 1000: 1.

  The filter cartridge 100 according to the present invention and the cartridge assembly to which the filter cartridge is attached have been described above. However, the cartridge assembly can be changed to various embodiments.

  For example, various types of filter materials or filter cartridges including the above-described filter cartridge 100 can be used in combination in the outer housing of the cartridge assembly.

  Various embodiments for this are shown in FIGS.

  4 is a longitudinal sectional view showing an embodiment of a filter housing assembly employing the filter cartridge of FIG. 3 and a hollow fiber membrane filter cartridge, and FIG. 5 is effective together with the filter cartridge of FIG. FIG. 6 is a longitudinal sectional view showing another embodiment of a filter housing assembly further including a separate filter material having components, and FIG. 6 shows another embodiment of the filter material having the functional effective component of FIG. A filter housing assembly that employs a filter material having various functional active ingredients different from a filter cartridge having a built-in filter is assembled in an intermediate housing, and this intermediate housing is further assembled in an outermost housing, that is, a triple structure filter It is the longitudinal cross-sectional view which showed the assembly.

  In these drawings, the filter cartridge 100 and the main part of the cartridge assembly to which the filter cartridge 100 is attached have been described with reference to FIGS. 2a, 2b, and 3. Therefore, unnecessary symbols in the description of specific embodiments are designated by the reference numerals. Despite being attached, the description is omitted.

  FIG. 4 shows a filter housing assembly in which a hollow fiber membrane filter cartridge 200 having a hollow fiber filter 35 at the top or bottom thereof is further provided in the outer housing 100h of the filter cartridge assembly together with the filter cartridge 100 shown in FIG. 3D is shown.

  FIG. 5 shows a filter cartridge assembly further including a variety of different functional filter materials 25 in the filter cartridge of FIG. 4. At this time, the functional filter materials 25 can be configured in a separate cartridge form. These functional filter materials can be arranged in different orders at the front and rear ends of the filter cartridge of FIG.

  Moreover, the nonwoven fabric filter 50 can be provided in the part which divides various filter materials 25 in order to filter passing water and adjust flow velocity.

  FIG. 6 shows another embodiment of the filter cartridge assembly employing the filter cartridge 100 of FIG. 3 and a filter material having various functional active components different from the functional components in the filter cartridge.

  In this embodiment, the housing of the cartridge assembly similar to that shown in FIG. 5 is configured as an intermediate housing 100h ′, the outermost housing 100h is configured outside the intermediate housing, and end caps are provided at the upper and lower portions of the housing. In the case of the upper end cap 130c, the upper end cap 130c includes a circumferential boss 135a into which a circumferential outflow portion 135b formed on the upper portion of the intermediate housing 100h ′ is inserted and fastened. At the time of fastening to the circumferential outflow portion 135b, at least one phosphorus-like sealing member can be attached to the outer peripheral surface of the circumferential outflow portion in order to seal between them.

  Accordingly, the purified water passing through the intermediate filter cartridge assembly is discharged to the outside through the outlet 135h at the upper end of the inner filter cartridge assembly, the outlet passage 135s, and the outlet 130 of the end cap 130c at the upper end of the outermost housing 100h.

  The intermediate cartridge housing assembly includes various filter members 25 at the upper and lower portions of the filter cartridge 100 of FIG. 3, and a nonwoven fabric filter 50 is provided on the upper and lower portions of the filter member 25 to separate these filter members. To do.

  The filter cartridge according to the present invention includes a filter material having a functional active ingredient for converting purified water into functional water through antibacterial, pH adjustment, mineral component adjustment, and the like.

  Specifically, various filter materials such as an activated carbon filter, a silver ion elution filter, a hydrogen ion elution filter, and a mineral component elution filter can be adopted as the filter material, and the form of the filter material is an amorphous or ball-shaped body. It can be.

  An embodiment for observing (observing) the effective characteristics of purified water purified using the filter cartridge according to the present invention, for example, pH control ability, is provided below.

  Two commercially available water purifiers were arranged, one configured the filter according to the conventional method, and the other was configured by applying the filter cartridge having pH adjusting ability according to the present invention.

The pressure of the raw water supplied to the water purifier filter is 3 kgf / cm ² , the flow rate of the raw water is 1350 cc / min, and the purified water that has been purified by the water purifier is first taken out for 12 hours a day for 1 hour in the gap, The pH was measured once a day at 1:00 pm every day, and after 10 days, the same measurement was performed at 10-day intervals.

  The result of such observation is shown in the graph of FIG.

  According to FIG. 7, the pH of the raw water was constant at about 7.2, and the purified water that passed through the conventional filter cartridge initially showed a strong alkali of about 10.2, but about one week passed. From the point of view, the pH adjustment effect is lost because it shows similar to the pH of the raw water, but the purified water that has passed through the filter cartridge of the present invention maintains weak alkalinity of about 7.7 to 7.8 for a long time. I found out that

The longitudinal cross-sectional view of the filter housing assembly by a prior art. The longitudinal section of the filter housing assembly to which the filter cartridge of one embodiment by the present invention was attached. The longitudinal cross-sectional view and top view of the filter housing assembly in which the filter cartridge of other embodiment by this invention was attached. FIG. 2b is a detailed view of the filter cartridge attached to the filter housing assembly of FIG. 2a. FIG. 4 is a longitudinal sectional view showing an embodiment of a filter housing assembly employing the filter cartridge of FIG. 3. The longitudinal cross-sectional view which showed other embodiment of the filter housing assembly which employ | adopted the filter cartridge of FIG. The longitudinal cross-sectional view which showed other embodiment of the filter housing assembly which employ | adopted the filter cartridge of FIG. Changes in pH over time were measured for purified water purified using a conventional pH adjustment cartridge, purified water purified using a filter cartridge of the present invention having pH adjustment capability, and raw water supplied to the pH adjustment cartridge. Graph.

Explanation of symbols

15, 25, 35: Filter material 100: Filter cartridge 100h: Filter external housing 110: Inflow portion 110s: Inflow space 115s: Side inflow space 120a, 120b: Cap portions 120h, 120h ′, 120h ″: Bypass outlet for inflow water 125a: Minute inflow portion 125b: Minute outflow portion 130: Outflow portion 130s: Flow space 200: Hollow fiber membrane filter cartridge

Claims (17)

A filter cartridge for a water purification system that can be built into an external filter housing assembly,
It includes a cylindrical housing containing a filter material having a functional active ingredient, and a cap portion coupled to the upper and lower ends of the housing, each of the upper and lower cap portions having a minute outflow portion and an inflow portion having a predetermined cross-sectional area ratio. The upper cap portion has a circumferential recess around which the sealing ring seated in contact with the inner wall of the outer filter housing is seated. A filter cartridge for a water purification system, characterized in that a circumferential rim and a bypass outlet for inflow water closest to the circumferential rim are formed. A filter cartridge for a water purification system that can be built into an external filter housing assembly,
It includes a cylindrical housing containing a filter material having a functional active ingredient, and a cap portion coupled to the upper and lower ends of the housing, each of the upper and lower cap portions having a minute outflow portion and an inflow portion having a predetermined cross-sectional area ratio. Each upper rim is formed around the upper cap portion so as to be in surface contact with the inner wall of the outer filter housing. A filter cartridge for a water purification system, wherein at least one inflow water bypass outlet is formed. A filter cartridge for a water purification system that can be built into an external filter housing assembly,
A cylindrical housing containing a filter material having a functional active ingredient, and a cap portion coupled to the upper and lower ends of the housing, each of the upper and lower cap portions having a minute outflow portion and an inflow portion having a predetermined cross-sectional area ratio, respectively An upper protruding shape having a diameter that is the same as or slightly larger than that of the cylindrical housing so as to provide a bypass outlet for inflow water around the upper cap portion between the inner wall of the outer filter housing. A filter cartridge for a water purification system, comprising a circumferential rim, wherein the cylindrical housing of the filter cartridge is formed with at least one fixing rib that is tightly fixed to the inner wall of the outer filter housing assembly. The filter for a water purification system according to any one of claims 1 to 3, wherein a cross-sectional area ratio between the minute outflow portion and the bypass outlet of the upper cap portion is in a range of 1: 1000 to 1000: 1. cartridge. The water purification section according to any one of claims 1 to 3, wherein a passage cross-sectional area of the minute outflow portion of the upper cap portion is smaller than or equal to a passage sectional area of the minute inflow portion of the lower cap portion. Filter cartridge for the system. The purified water according to any one of claims 1 to 3, wherein the upper and lower cap portions are coupled to the upper and lower ends of the housing by any one of an integrated type, a separated type and a mixed type thereof. Filter cartridge for the system. The filter material incorporated in the filter cartridge includes a pH adjusting ball or an amorphous shape that contains a hydroxide compound and elutes hydroxide ions, and an antibacterial ball that contains a silver compound and elutes silver ions. It is composed of at least one filter material of a regular shape body and a mineral component adjusting ball that contains a mineral component beneficial to the human body and elutes an effective mineral component, or an amorphous shape body. The filter cartridge for water purification systems as described in any one of 1-3. An external filter housing assembly incorporating the filter cartridge for a water purification system according to any one of claims 1 to 3,
For a water purification system, comprising: a hollow cylindrical outer housing containing the filter cartridge; and upper and lower end cover caps respectively coupled to upper and lower portions of the outer housing and formed with an outlet and an inlet, respectively. Filter housing assembly. An external filter housing assembly incorporating the filter cartridge for a water purification system according to any one of claims 1 to 3,
Surrounding the intermediate housing, a hollow cylindrical intermediate housing containing the filter cartridge, upper and lower intermediate cover caps that are respectively coupled to the upper and lower portions of the intermediate housing and each have a circumferential protruding outlet and an inlet. Upper and lower outer cover caps that are respectively coupled to the upper and lower portions of the outer housing so as to cover the outer housing and the circumferentially projecting outlet and inlet of the intermediate cover cap on the upper and lower parts of the intermediate housing, respectively. A filter housing assembly for a water purification system. The filter housing assembly for a water purification system further includes a hollow fiber membrane filter cartridge in any one of an upper part and a lower part of a filter cartridge containing a filter material having an active ingredient. Filter housing assembly for water purification system. The filter housing assembly for the water purification system is at least one filter having a functional active ingredient different from the filter material of the filter cartridge in at least one of the upper and lower parts of the filter cartridge containing the filter material having the active ingredient. The filter housing assembly for a water purification system according to claim 8 or 9, further comprising a material. The filter housing assembly for the water purification system is at least one filter having a functional active ingredient different from the filter material of the filter cartridge in at least one of the upper and lower parts of the filter cartridge containing the filter material having the active ingredient. The filter housing assembly for a water purification system according to claim 8 or 9, further comprising a material and a hollow fiber membrane filter cartridge. 10. The filter housing for a water purification system according to claim 8, wherein a cross-sectional area ratio between the minute outflow portion of the upper cap portion of the filter cartridge and the outlet for bypass is in the range of 1: 1000 to 1000: 1. Assembly. The water purification system according to claim 8 or 9, wherein a passage cross-sectional area of the minute outflow portion of the upper cap portion of the filter cartridge is smaller than or equal to a passage sectional area of the minute inflow portion of the lower cap portion. Filter housing assembly. The water purifying system according to claim 8 or 9, wherein the upper and lower end cover caps are coupled to the upper and lower end portions of the outer housing by any one of an integrated type, a separated type and a mixed type thereof. Filter housing assembly. The upper and lower middle and outer cover caps are coupled to the upper and lower ends of the middle and outer housings by any one of an integral type, a separated type and a mixed type thereof. Filter housing assembly for water purification system. The filter material incorporated in the filter cartridge includes a pH adjusting ball or an amorphous shape that contains a hydroxide compound and elutes hydroxide ions, and an antibacterial ball that contains a silver compound and elutes silver ions. It is composed of at least one filter material of a regular shape body and a mineral component adjusting ball that contains a mineral component beneficial to the human body and elutes an effective mineral component, or an amorphous shape body. 10. A filter housing assembly for a water purification system according to 8 or 9.