KR101867362B1 - Complex Purification Filter - Google Patents

Abstract

The present invention relates to a composite filter for a water purifier capable of improving the water purification function by providing a four-stage filter composed of a sediment filter, a carbon block filter, a nanomembrane filter and a post carbon filter in one housing. The composite filter for a water purifier according to the present invention includes a housing 100, a first filter unit 200, and a second filter unit 300; The first filter unit 200 and the second filter unit 300 are separated or combined with each other by an elastic attachment and detachment method and the second filter unit 300 is connected to the outlet 120 of the housing 100 The first fastening groove 130 is separated from or connected to the first fastening groove 130 by an elastic attachment / detachment method; The raw water flowing into the housing 100 through the inlet 110 of the housing 100 flows into the first filter unit 200 and is primarily filtered while the first filter unit 200 is filtered And then flows into the second filter unit 300, is secondarily filtered, and then flows out to the outside.

Description

Complex Purification Filter

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite filter for a water purifier, and more particularly, to a composite filter for a water purifier that can maximize water purification efficiency by providing a four-stage composite filter in a single case.

Generally, a water purifier installed in a home or an office provides purified water or cold water after filtering raw water which requires purified water such as tap water or natural water.

Such a water purifier not only removes harmful substances including human body suspended in water, but also eliminates odors and even bacteria that cause water-related diseases.

1 is a view showing a general water purifier having a general four-stage filter.

1, a general water purifier is composed of a sediment filter 11, a free carbon filter 12, a UF membrane filter 13, and a post carbon filter 14, and includes a sediment filter 11, The carbon filter 12, the UF membrane filter 13 and the post carbon filter 14 are respectively connected to an inlet 21 through which water enters the filter and an outlet 22 through which water flows out of the filter, Respectively.

Here, the sediment pre-filter 11 is a pretreatment filter that protects the main filter by removing various residues such as rust, soil, sand, dust, etc. contained in the raw water with pores of about 5 microns. It has a replacement period of about 3 months.

The pre-carbon filter 12 adsorbs and removes odor and chromaticity from the chlorine component in the tap water and the organic compound such as chloroform (trihalomethane) using the adsorption method of activated charcoal It makes raw water into natural water, and generally has a replacement cycle of about 6 months.

In addition, the UF membrane filter (Ultra Filtration (UF) Filter) 13 is a fine pore having a size of 0.4 to 0.01 micron and filters out the impurities remaining in the water, passes only clean water containing the mineral component intact, Year replacement period and serves as a main filter.

The Post Carbon Filter 14 removes the unpleasant odor, taste, coloring matter, etc. passing through the main filter to produce a colorless, odorless, clean water, rejuvenates to a natural water taste, .

Here, the outlet of the sediment filter 11 into which the raw water flows is connected to the inlet of the adjacent carbon block filter 12, the outlet of the pre-carbon filter 12 is connected to the inlet of the adjacent UF membrane filter 13, The outlet of the UF membrane filter (13) is connected to the inlet of the adjacent post-carbon filter (14).

As described above, the water purifier having the four-stage composite filters connected in a parallel structure has a function that the raw water, which is an integer target, passes through the sediment filter 11, the pre-carbon filter 12, the UF membrane filter 13 and the post- Removal of impurities through sedimentation> Removal of organic compounds and odors by adsorption> Purification of impurities by pore filtration> The function of recovering the taste of water through adsorption is performed in order.

However, since such conventional four-stage composite filters are required to have an absolutely internal space in order to be disposed in the water purifier, space for installing the water purifier in a miniaturized water purifier or installing it in a household appliance such as a refrigerator with a water purifier is limited.

In addition, since the conventional water purifier equipped with the four-stage composite filter has different filter replacement periods such as 3 months, 6 months, 1 year, etc., it is difficult for the user to confirm the replacement cycle of the filter. It is difficult to manage the replacement period of each functional filter provided in the composite filter used by the user.

In addition, since a conventional water purifier equipped with a four-stage composite filter requires a large number of filters from the viewpoint of the manufacturer, the manufacturing cost is relatively high, and the maintenance cost is relatively high for consumers.

Therefore, the function of the filter is strongly required in the industry to develop a composite filter having a function as a single-body composite filter while functioning as a water purification composite filter.

In order to meet the needs of such industry, Korean Patent Laid-Open Publication No. 2003-0096867 (Woongjin Coway) can reduce the size of a composite filter and easily replace a filter with a filter replacement signal, prolong the life of a sediment filter And prevents the clogging of the filter material at the rear end of the sediment filter in advance, thereby preventing the water flow rate from being reduced.

However, Woongjin Coway's patent is a three-stage filter consisting of a sediment filter and a pre-carbon filter (Activated Carbon Fiber (ACF))> main filter (UF membrane filter). That is, as a composite filter not provided with a post-carbon filter at the rear end, three filters are used in order to develop a composite filter, but the taste of the water that is considered important at the time of purification is not considered at all.

In addition, the patent of Woongjin Coway has a structure in which a sediment filter is provided at the lower end portion of the entire housing, a free carbon filter is provided at a connection portion connecting the lower end portion and the upper end portion, and a main filter (UF membrane filter) The filter is not completely submerged in the water, so that the air contained in the raw water supplied to the sediment filter must be present in a compressed form. If the compressed air is not completely discharged to the outside of the composite filter, I could.

Therefore, if the air can not be completely discharged into the sediment filter or the main filter, the compressed air may interfere with the flow of water during the water flow. In fact, the water purifier AS manages the water purifier, A flushing process is performed to remove the compressed air.

Korean Patent Publication No. 2007-0069285 (Youngsung Industrial Co., Ltd.) is capable of simultaneously carrying out the adsorption function and the particle removal function of various pollutants contained in water, and the supporting force of activated carbon or activated carbon fiber is improved and exchanged A complex filter for water purification is described in which the time can be easily confirmed.

The open patent of Youngseong Industry is a two-stage composite filter composed of a sediment filter and a pre-carbon filter. Since it is a simple compound filter without a main filter and a post carbon filter, not only the function of filtering bacteria is deteriorated, It has structural limitations that it can not do.

Therefore, the composite filter using the patent of the spiritual industry can be normally used for a certain period of time after installation, but after the critical time of the filter has passed, the impurities that the free carbon filter adsorbed can be spit out into the purified water. Since there is no main filter at this time, the turbidity of the composite filter is leaked as it is, so that it can not be removed properly.

In Korean Patent Laid-Open Publication No. 10-2010-0127132 (Nippon Bond Co., Ltd.), the sediment filter and the free carbon filter are arranged in an independent structure, respectively, and granular activated carbon is used for the free carbon filter, It is possible to adjust the filtering performance of the sediment filter by changing the length of the sediment filter according to the user's need and to increase or decrease the filling amount of the granular activated carbon A composite filter for water purification is disclosed which can control the filtering performance of the free carbon filter.

The conventional patent of the cylinder is structured by a three-stage composite filter including a sidelite filter, a pre-carbon filter and a post-carbon filter (granular activated charcoal), and has a structural limitation in that it does not substantially contain a main filter and can not filter out bacteria.

In particular, since the inner case serving as the inner tube extends from the upper end to the lower end of the composite housing, the structure disclosed in Patent Document 1 has a limitation in that the air contained in the raw water can not escape smoothly out of the composite filter.

Therefore, some air that can not be discharged from the inside of the inner case interferes with the flow of purified water. In other words, due to the characteristics of air, the air rises only in the upper direction of the inner case. Since the discharge path of the purified water only flows from the upper direction to the lower direction, the air that has not escaped from the upper direction inside the inner case remains in a compressed state Such compressed air is a factor that hinders the smooth water flow inside the composite filter.

In Korean Patent Laid-Open No. 10-2012-0054919 (LG Electronics Co., Ltd.), the water flow path is made long and complicated to improve the water purification performance and the size thereof can be reduced to make it smaller and slimmer. Which is capable of reducing the number of compact composite filters and water filters, eliminating the need for a water tank, and reducing a waste filter.

The LG patent is a two-stage filter composed of two kinds of pre-carphone filters (first and second activated carbon filters), although the first filter is the first activated carbon filter having an ion exchange resin added with iron oxide, 2 filter has a characteristic including at least one of a second activated carbon filter, a microfiltration filter, a nanofiltration filter and an ultrafiltration filter, the structure of a simple two-stage filter can not solve all the problems of the prior art described above It has structural limitations.

1. Patent Publication 2003-0096867 (December 31, 2003) Compound filter for water purifier 2. Patent Publication 2007-0069285 (Jul. 03, 2007) 3. Disclosed patent specification 2010-0127132 (December 03, 2010) Compound filter for water purifier 4. Open patent Patent No. 2012-0054919 (May 31, 2012) Compound filter and water purification device using it

SUMMARY OF THE INVENTION It is an object of the present invention to provide a four-stage filter comprising a sediment filter, a carbon block filter, a nanomembrane filter and a post-carbon block filter in one housing. Thereby improving the water purification performance.

It is another object of the present invention to provide an air conditioner in which a housing is constituted by separate upper and lower housings which are detachably coupled to each other vertically, a sediment filter, a carbon block filter and a nanomembrane filter are installed in the lower housing, To provide a structure in which the flow path of raw water flows from the lower housing to the upper filter so that the main filter is always immersed in the purified water.

It is still another object of the present invention to provide a water purification composite filter capable of inserting a carbon bar produced by an extrusion method into an independent bottom housing detachably coupled to each other vertically and shaft rod in the upper housing and installing the same carbon rod or granular carbon mixture in the upper housing .

According to an aspect of the present invention, there is provided a composite filter for a water purifier, comprising: an inlet port through which raw water flows into an upper end portion; an outlet port through which filtered purified water flows out; A housing having a fastening groove extending in a downward direction; A first filter unit installed at a lower end of the housing and having a discharge hole formed at an upper end thereof for firstly filtering raw water flowing through an inlet of the housing; A second fastening member protruding from the upper end of the housing to be detachable from the first fastening groove of the housing and protruding from the upper fastening groove and being spaced apart from the discharge hole of the first filter unit at a lower end thereof, And a second filter unit for performing a second-order filtering on the filtered integer introduced from the first filter unit;

The first filter unit includes: an upper cap having the discharge hole formed at an upper end thereof and having a first stopping protrusion along an outer circumferential surface thereof; a lower cap having a second stopping protrusion formed along an outer circumferential surface thereof; A cylindrical first carbon block filter serving as a shaft rod provided in a longitudinal direction between the upper cap and the lower cap and having a first hollow formed in the longitudinal direction in the longitudinal direction and providing a purified flow path of raw water, Wow; A first sediment filter wound around the outer circumferential surface of the first carbon block filter and serving as an outer case; And a nano-membrane filter inserted and installed so as to be in close contact with the inner circumferential surface of the first carbon block filter;

The second filter unit may include an inner case protruding from the upper end of the second fastener and being sealed to prevent water from entering the side surface of the inner case; A cylindrical post-carbon block filter inserted in the inner case in the longitudinal direction and having a second hollow formed in the longitudinal direction in a longitudinal direction thereof and serving as a shaft rod for providing a purified water flow path; And a distribution plate installed on a bottom surface of the inner case and dispersing and discharging purified water flowing through the second coupling groove toward the inner wall of the inner case,

Wherein the first filter portion is longitudinally fitted between an upper cap having the first stopping jaw and a lower cap having the second stopping jaw; The second filter unit is coupled to the first coupling groove connected to the outlet of the housing so that the second filter unit can be attached to and detached from the first coupling groove and the outlet formed at the upper end of the first filter unit is coupled to the second filtering unit. .

Here, the raw water introduced through the inlet port moves to (1) the lower end of the housing along a gap formed between the inner wall of the housing and the outer wall of the inner case of the second filter section, (2) The first filter, the first sediment filter, the first carbon block filter, and the inner surface of the nanomembrane filter in order; (3) While the first filtered integer is rising from the bottom surface of the housing, the first filter unit is discharged to the inside of the second filter unit while maintaining the state that the first filter unit is immersed in the filtered purified water 4) The first filtered integer is dispersed and discharged in an outward direction of the second filter unit through the distribution plate of the second filter unit. (5) The first filtered integer is set to a value of And has a water purifying path that is secondarily filtered while flowing in the direction from the outer surface to the inner surface and then flows out to the outside.

The composite filter for a water purifier according to the present invention has the following effects.

First, a four-stage filter consisting of a sediment filter, a carbon block filter, a nanomembrane filter, and a post carbon filter may be provided at the same time in one housing.

Accordingly, it is possible to obtain a water purification effect similar to that of a conventional composite filter for a water purifier having a separate four-stage filter, but it can be downsized and compact and can be used in various products such as a water purifier and a refrigerator.

Second, the housing is constituted by separate upper and lower housings which are vertically detachably coupled to each other, wherein a sediment filter, a carbon block filter, and a nanomembrane filter are installed in the lower housing, and a post carbon filter is installed in the upper housing, Can flow from the lower housing to the upper filter to provide a structure in which the main filter is always immersed in the purified water.

Therefore, not only the upper and lower housings can be easily replaced according to the replacement period of the filter by the user, but also the direction in which the air contained in the raw water is discharged and the constant path direction of the raw water are the same, So that a uniform flow rate can be maintained and secured as a whole.

Third, a carbon rod manufactured by an extrusion method may be inserted into an independent lower housing coupled vertically and removably, and the same carbon or granular carbon ball may be installed in the upper housing.

Therefore, in general, instead of the shaft bar made of a synthetic resin material, a miniaturized carbon rod can be used, thereby maximizing the water purification performance while minimizing the number of components of the composite filter, and having a neutral or weak alkaline property (pH 7.3 to 8.5) The purified water can be discharged.

1 is a view showing a filter arrangement of a general purifier;
FIG. 2A is a perspective view schematically showing a state in which a composite filter for a water purifier according to the first preferred embodiment of the present invention is separated; FIG.
FIG. 2B is a perspective view schematically showing a composite filter for a water purifier according to a first preferred embodiment of the present invention; FIG.
FIG. 3A is a longitudinal sectional view of a composite filter for a water purifier according to a first preferred embodiment of the present invention; FIG.
FIG. 3B is a perspective view of the second filter portion of the composite filter for a water purifier according to the first preferred embodiment of the present invention as viewed from the bottom; FIG.
3C is an enlarged cross-sectional view of the main part A of the composite filter for a water purifier according to the first preferred embodiment of the present invention;
4 is a perspective view illustrating the internal structure of the second filter unit shown in FIG. 3;
5 is a longitudinal sectional view for explaining the operation of the composite filter for a water purifier according to the first preferred embodiment of the present invention;
6 is a longitudinal sectional view of a composite filter for a water purifier according to a second preferred embodiment of the present invention;
7 is a longitudinal sectional view of a composite filter for a water purifier according to a third preferred embodiment of the present invention.

Hereinafter, the configuration and operation of a composite filter for a water purifier according to the present invention will be described in detail with reference to the drawings.

The suffix " part " or " member " for a component used in the following description is given merely for ease of description in the present specification, and the " part " or " member "

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

As used herein, terms used in the present invention are selected from general terms that are widely used in the present invention while taking into account the functions of the present invention, but these may vary depending on the intention or custom of a person skilled in the art or the emergence of new technologies. In addition, in certain cases, there may be a term arbitrarily selected by the applicant, in which case the meaning thereof will be described in the description of the corresponding invention. Therefore, it is intended that the terminology used herein should be interpreted based on the meaning of the term rather than on the name of the term, and on the entire contents of the specification.

FIG. 2A is a perspective view schematically showing a state in which a composite filter for a water purifier according to the first preferred embodiment of the present invention is separated; FIG. FIG. 2B is a perspective view schematically showing a composite filter for a water purifier according to a first preferred embodiment of the present invention; FIG. FIG. 3A is a longitudinal sectional view of a composite filter for a water purifier according to a first preferred embodiment of the present invention; FIG. FIG. 3B is a perspective view of the second filter portion of the composite filter for a water purifier according to the first preferred embodiment of the present invention as viewed from the bottom; FIG. FIG. 4 is a perspective view illustrating the internal structure of the second filter unit shown in FIG. 3. FIG.

2 to 4, the water purification composite filter according to the present invention includes a housing 100, a first filter unit 200, and a second filter unit 300.

2, an inlet 110 through which raw water flows and an outlet 120 through which filtered purified water flows out are formed in the upper side of the upper portion of the housing 100 and an outlet 120 The first fastening groove 130 is formed to extend in the downward direction by a predetermined length.

2 and 3, the first filter unit 200 is provided at a lower end of the housing 100 and has an outlet 202 formed at an upper end thereof. The inlet portion 110 of the housing 100, And then discharges the raw water to the inside of the second filtering unit 300.

The first filter unit 200 includes an upper cap 210a having a discharge port 202 formed at an upper end thereof and having a first latching protrusion 212 formed in a vertical direction along an outer circumferential surface thereof, A first hollow 222 is formed in the longitudinal direction between the upper and lower caps 210a and 210b and formed in a longitudinal direction in the longitudinal direction between the upper and lower caps 210a and 210b. A first carbon filter 220 having a cylindrical shape serving as a shaft rod for providing a purified water flow of raw water and a second carbon filter 220 wound around the outer circumferential surface of the first carbon filter 220 inside the first hollow tube 222, A first sediment filter 230 fitted and fixed to the inner circumferential surfaces of the first and second stopping jaws 212 and 214 so as to serve as an outer case; And a nanomembrane filter 240 inserted and installed.

3, the diameter of the upper cap 210a and the lower cap 210b is composed of a first carbon filter 220, a first sediment filter 230, and a nanomembrane filter 240 And a first latching protrusion 212 extending in the lower vertical direction along the outer circumferential surface of the upper cap 210a and extending in the vertical direction of the lower cap 210b, When the first filter unit 200 is inserted and mounted at a predetermined depth on the bottom surface and the top surface of the first filter unit 200, the second filter unit 200 is fixed .

At this time, as shown in FIG. 3A, the first sediment filter 230 is wound so as to closely contact with the outer circumferential surface of the first carbon filter 220, and it is preferable that the first sediment filter 230 is wound in a thickness range of 0.5 to 2.5 mm.

Generally, a rolling type sediment filter is manufactured by winding a nonwoven fabric on a barb. However, such a method requires a separate production process, and it is very difficult to control the thickness of the sediment filter to be thin.

In order to avoid such a disadvantage, in the first preferred embodiment of the present invention, since the post-carbon filter can be produced by wrapping the saddle around the barrel, the thickness of the first sediment filter 230 can be reduced to 1.0 mm or less Can also be produced.

The thickness of the nanomembrane filter 230 may range from 28 mm to 32 mm. When the operator inserts the nanomembrane filter 330 in the longitudinal direction of the first carbon block filter 220, Even if there is a difference in thickness of the outer diameter of the filter 330, it can be accommodated if it is within a predetermined error range.

On the other hand, the pores of the nanomembrane filter 330 are determined within a range of 0.0100 to 0.0180 μm as shown in Table 1 below, and preferably a PES (polyethersulfone) membrane or a polytetrafluoroethylene (PTFE) membrane having pores of 0.0142 μm Lt; / RTI >

In the first preferred embodiment of the present invention, as shown in the following Table 2, test results will be described when 100 liters of chloroform (trihalomethane) is passed through the nanomembrane filter 230.

In the first preferred embodiment of the present invention, 100 liters of chloroform (trihalomethane) was passed through. However, if the filtration was performed at about 1000 liters instead of 100 liters, the nanomembrane according to the preferred embodiment of the present invention In filter 230, chloroform does not pass through, but a typical UF membrane filter will continue to pass through chloroform.

Referring to Table 3, it can be seen that when the filtration is performed using a general UF membrane filter, the chlorine component is hardly filtered until 10 liters are passed. However, in the nanomembrane filter 230 according to the preferred embodiment of the present invention, The chlorine component is removed by about 24% when passing 100 liters.

In Table 3, the nanomembrane filter exhibits a filtration rate of about 24%, which is about 10%, because the concentration of chlorine in the nanomembrane filter keeps increasing, so that the amount of components pushed out is analyzed.

Therefore, the first carbon block filter 220 primarily receives the chlorine component contained in the raw water, and the undetected chlorine component can be caught again in the nanomembrane filter 230. When passing through the nanomembrane filter 230, The first carbon filter 220 can absorb the chlorine in the water more effectively and can absorb the chlorine component more effectively, and when the user does not use the first carbon filter 220, So that the chlorine component filtered by the nanomembrane filter 230 can be adsorbed by the second carbon block filter 320 again.

In addition, since the chlorine component that has escaped from the nanomembrane filter 230 can be adsorbed again in the second or third carbon block filter provided in the second filter unit 300, the chlorine component is superior in performance to a general composite filter.

In addition, the nanomembrane filter 230 is inserted into the center of the first carbon filter 220 serving as a shaft rod, and the turbidity removal rate may be 95 to 98% or more.

At this time, when the turbidity of the nanomembrane filter 230 is removed and the turbidity concentration in the nanomembrane filter 230 becomes relatively high, the highly concentrated turbidity hinders the flow of water and water does not come out. However, in the case of using a conventional UF membrane filter, turbidity is caught in a certain time, but turbidity is not obtained after a critical time of the filter.

The inner diameter of the first carbon block filter 220 is determined depending on the thickness of the nanomembrane filter 230 and the outer diameter of the first carbon block filter 220 is in the range of 42 to 45 mm desirable.

However, in the first preferred embodiment of the present invention, the inner surface of the carbon block made of 30 wt% of cetane, 50 wt% of general carbon, 10 wt% of tourmaline, and 10 wt% of zeolite is used as a synthetic resin having an inner diameter and an outer diameter. In which a coil rod is inserted into the carbon block and heat is simultaneously applied to the inside and outside of the carbon block. When a carbon block filter is manufactured in this manner, it is possible to produce a carbon block having a small diameter which can be used as a shaft in comparison with the conventional method.

3, the second filter unit 300 is installed at the upper end of the housing 100 and is elastically fastened to the first fastening groove 130 formed at the upper end of the housing 100 in the downward direction A second elastic fastener 302 protrudes from the first filter unit 200 and is installed at a lower end of the first filter unit 200 so as to be spaced apart from the discharge port 202 of the first filter unit 200, Filter the car.

3A, the second filter unit 300 may include an inner case 310 protruding from the upper end of the second filter unit 300 and sealing the side of the second filter unit 300, A cylindrical second carbon filter 322 inserted in the longitudinal direction of the inner case 310 and having a second hollow 322 formed in the center thereof in the longitudinal direction thereof and serving as a shaft rod for providing purified water, A second sediment filter 330a wound around the second carbon filter 320 so as to be closely contacted with the outer circumferential surface of the second carbon filter 320 and a third sediment filter 330a wound around the inner circumferential surface of the second carbon filter 320, The inner case 310 has an inner case 310 and an inner case 310. The inner case 310 has an inner case 310 and an inner case 310. The inner case 310 has a through hole 202a, And a distribution plate 340 for distributing and discharging the liquid.

Here, the second carbon filter 320 is formed to serve as a shaft rod providing a constant path. In the first preferred embodiment of the present invention, the second carbon filter 320 has a ratio of cetane 30 wt%, general carbon 50 wt%, tourmaline 10 wt%, and zeolite 10 wt% It is preferable to form the carbon block by an extrusion method in which heat is simultaneously applied from the inside and the outside of the carbon block while the coil rod is inserted into the inside of the carbon block. When a carbon filter is manufactured in this manner, it is possible to produce a carbon block having a small diameter which can be used as a shaft in comparison with the conventional method.

2A and 2B, the diameter of the inner case 310 is larger than the diameter of the inner case 310 when the upper end of the first filter unit 200 is inserted into the inner case 310 by a predetermined length And the lower end of the inner case 310 is formed to extend in a lower direction than a position where the distribution plate 340 is formed by a certain length.

The second sediment filter 330a is wound so as to be closely contacted with the outer circumferential surface of the second carbon filter 320. The third sediment filter 330b is preferably wound in a thickness range of 0.5 to 2.5 mm, The second carbon block filter 320 is wound so as to be closely contacted with the inner circumferential surface of the second carbon block filter 320, and is preferably wound in a thickness range of 0.5 to 2.5 mm.

3B, the distribution plate 340 includes an annular outer ring portion 342 fixed in the horizontal direction along the inner peripheral surface of the lower end of the inner case 310, A center portion 348 formed to be relatively smaller in diameter than the diameter of the outer ring portion 342 so as not to be discharged in the vertical direction, and an outer ring portion 342 and a center portion 348 spaced from each other, And a plurality of connecting fins 344 connecting the plurality of windows 346 at regular intervals to form a plurality of windows 346.

At this time, the center portion 348 of the distribution plate 340 is formed to extend in the lower direction relative to the outer ring portion 342 by a predetermined length, as shown in FIG. 3C, so that the purified water filtered in the first filter portion 200 It is possible to provide a flow path which is dispersed in the outward direction of the bottom surface of the second filter part 300 from the discharge port 202 formed at the center.

In the first preferred embodiment of the present invention, the first and second carbon filters 220 and 320 are vertically arranged in two stages, and the first carbon block filter 220 is mounted on the front end of the nanomembrane filter 230, The second carbon block filter 320 can be installed to improve the water taste of the finally filtered purified water and to easily adjust pH to 7.3 to 8.5 so as to provide weak alkaline water to the users.

In order to improve the antibacterial function during the secondary filtering of the second filter unit 300 in manufacturing the second carbon filter 230, a silver component may be added to produce a shaft rod.

In a preferred embodiment of the present invention, balls can be prepared by extruding balls by adding 5 to 10 wt% of balls to raw materials of 20-30 wt% of silicon carbide, 40-50 wt% of general shot, 5-10 wt% of tourmaline and 5-10 wt% of zeolite There is also.

On the other hand, a large amount of silver balls and a second carbon block filter 320 having a size equal to or smaller than the pores of the second carbon block filter 320 are formed in a state in which the second carbon filter 320 is formed and then heat is not applied. The silver ball is forcedly inserted into the second carbon filter 320 and the coil bar is inserted into the second carbon block filter 320. In this state, Or may be formed by an extrusion method in which heat is simultaneously applied to the inside and the outside of the block filter 320.

At this time, when heat is simultaneously applied from the inside and the outside of the second carbon block filter 320, the pores of the second carbon filter 320 become smaller than before the heat is applied, so that the silver balls are not discharged to the outside.

In the preferred embodiment of the present invention, the first filter unit 200 and the second filter unit 300 are separated or combined with each other by an elastic attachment and detachment method as shown in FIG. 1, and the second filter unit 300 is elastic And is detachably coupled to the first coupling groove 130 connected to the outlet 120 of the housing 100 by an attaching / detaching method.

The length of the second filter unit 300 preferably has a length ratio of 20 to 40% of the length of the first filter unit 200.

The integer operation of the water purification type composite filter according to the first embodiment of the present invention will be described below with reference to FIGS. 2 to 5 attached hereto.

5, raw water introduced into the interior of the housing 100 through the inlet 110 of the housing 100 passes through the inner wall of the housing 100 and the outer wall of the inner case 310 of the second filter 300, And is moved to the lower portion of the housing 100 by the force of its own weight along the narrow gap formed in the housing 100.

5, the first sediment filter 230 is wound on the outer surface of the first filter unit 200, and the raw water, which is moved to the lower end of the housing 100, 230, rust, soil, sand, dust, etc., and various impurities contained in the raw water are removed.

The raw water having passed through the first sediment filter 230 passes through the first carbon block filter 220 and adsorbs and removes chlorine or organic compounds such as chloroform (trihalomethane) and odors, Make it together.

The raw water that has passed through the first carbon block filter 220 passes through the nanomembrane filter 240 to filter out impurities remaining in the water with fine pores of 0.0100 to 0.0180 um and to remove only the clean water .

Particularly, in the preferred embodiment of the present invention, the nanomembrane filter 240 can re-filter chlorine components not filtered by the first carbon block filter 220, and the turbidity contained in the raw water can be caught up to 95 to 98% It can be seen from the experimental data shown in Tables 1 to 3.

The above-mentioned water purification operation is performed inside the first filter unit 200. When the purified water passing through the nanomembrane filter 240 is elevated upward from the bottom surface of the housing 100, And is supplied to the second filter unit 300 through the discharge port 202 formed at the upper end.

A distribution plate 340 is installed on the bottom of the second filter unit 300 so that the purified water flowing through the discharge port 202 at the upper center of the first filter unit 200 flows through the window 346 of the distribution plate 340 To the inner wall of the inner case 310.

Then, the purified water passing through the window 346 of the distribution plate 340 passes through the entire outer surface of the second sediment filter 330a, and is discharged to the outside through rust, soil, sand, dust, The impurities are removed.

Next, the purified water passing through the second sediment filter 330a is passed through the second carbon block filter 320, and the unpleasant odor, taste, coloring matter, etc. impregnated in the raw water are removed, thereby forming a colorless and odorless clean water .

Subsequently, the purified water passing through the second carbon filter 320 passes through the entire outer surface of the third sediment filter 330b, and rust, soil, sand, dust, and various kinds of impurities contained in the raw water, .

In the first preferred embodiment of the present invention described above, the first and second carbon filters 220 and 320 are vertically arranged in two stages, and the first carbon block filter 220 is mounted on the front end of the nanomembrane filter 230 And the second carbon block filter 320 is installed at the rear end to improve the water taste of the finally filtered purified water and to easily adjust pH to 7.3 to 8.5 so as to provide weak alkaline water to users have.

≪ Embodiment 2 >

Referring to FIG. 5, the water purification composite filter according to the second preferred embodiment of the present invention includes a housing 100, a first filter unit 200, and a second filter unit 300.

Here, the configuration and operation of the housing 100 and the first filter unit 200 are the same as those of the first preferred embodiment of the present invention, and therefore, the structure and operation of the second filter unit 300 will be mainly described.

That is, the second filter unit 300 includes an inner case 310 in which a second elastic fastener 302 is protruded from an upper end, and an inner case 310 inserted in the longitudinal direction of the inner case 310, A third sediment filter 350 formed in a cylindrical shape and serving as a shaft rod for providing a purified water flow path of the raw water and a third sediment filter 350 installed in the longitudinal direction inside the inner case 310, A fourth sediment filter 360 of a cylindrical shape and installed to be hermetically closed along the inner circumferential surface of the inner case 310 and a plurality of particulate carbon mixtures And a distribution plate 340 installed on the bottom surface of the inner case 310 and dispersing and discharging the purified water flowing through the first filter unit 200 toward the inner wall of the inner case 310.

The granular carbon mixture 370 has a cylindrical shape of 30 wt% of cetane, 50 wt% of general coal, 10 wt% of tourmaline and 10 wt% of zeolite by extrusion, and has a size of 80 x 150 mesh.

In the first embodiment according to the present invention, the first carbon block filter 220 is inserted between the pair of sediment filters 330a and 330b. However, in the second embodiment, the particulate carbon mixture 370 ), It has a somewhat different structure but can have the same integer effect.

≪ Third Embodiment >

Referring to FIG. 6, the water purification composite filter according to the third preferred embodiment of the present invention includes a housing 100, a first filter unit 200, and a second filter unit 300.

Here, the configuration and operation of the housing 100 and the first filter unit 200 are the same as those of the first preferred embodiment of the present invention, and therefore, the structure and operation of the second filter unit 300 will be mainly described.

That is, the second filter unit 300 includes an inner case 310 in which a second elastic fastener 302 protrudes from an upper end, a plurality of particulate carbon mixtures 370 inserted in the inner case 310, And a distribution plate 340 installed on the bottom surface of the inner case 310 and dispersing and discharging purified water flowing through the first filter unit 200 toward the inner wall of the inner case 310.

The granular carbon mixture (granular carbon ball) 370 is a cylindrical shape in which raw materials of cetane 30wt%, general coal 50wt%, tourmaline 10wt% and zeolite 10wt% are extruded and have a size of 80 x 150 mesh.

 In the second embodiment according to the present invention, the granular carbon 370 is inserted between the pair of sediment filters 330a and 330b. However, in the third embodiment, Since the granular carbon mixture 370 of the granular carbon mixture 370 is provided only in the granular carbon mixture 370, it has a simpler structure than the second embodiment but can have the same integer effect as the second embodiment.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the present invention.

100: Housing
110: inlet
120: outlet
130, 304: fastening groove
200: second filter unit
202:
210a, 210b: upper cap, lower cap
212, 214:
220,320: Carbon block filter
230: Sediment filter
240: Nano membrane filter
300: second filter section
302: elastic fastener
310: inner case
330a, 330b, 350, 360: a sediment filter
340: Distribution board
342:
344: Connected flesh
346: Window
348:
370: Granular carbon mixture

Claims (10)

A housing having an inlet port through which raw water flows into the upper outer side portion and an outlet through which filtered purified water flows out to the upper side and a first coupling groove extends downward in an upper inner side portion corresponding to the outlet port;
A first filter unit installed at a lower end of the housing and having a discharge hole formed at an upper end thereof for firstly filtering raw water flowing through an inlet of the housing;
A second fastening member protruding from the upper end of the housing to be detachable from the first fastening groove of the housing and protruding from the upper fastening groove and being spaced apart from the discharge hole of the first filter unit at a lower end thereof, And a second filter unit for performing a second-order filtering on the filtered integer introduced from the first filter unit;
Wherein the first filter unit comprises:
An upper cap having an upper end formed with the discharge hole and having a first stopping protrusion along an outer circumferential surface thereof, and a lower stopper having a second stopping protrusion formed along an outer circumferential surface thereof;
A first hollow formed in the longitudinal direction between the upper cap and the lower cap in the longitudinal direction, a longitudinal hollow hollow formed inside the center, and serving as a shaft rod providing the purified water flow of the raw water, A first carbon block filter of a cylindrical shape having a general carbon content of 50 wt%, a tourmaline content of 10 wt%, and a zeolite content of 10 wt%;
A first sediment filter wound around the outer circumferential surface of the first carbon block filter and serving as an outer case;
And a nano-membrane filter inserted and installed so as to be in close contact with the inner circumferential surface of the first carbon block filter;
The second filter unit includes:
An inner case protruding from the upper end of the second fastener and hermetically sealed so that water does not enter the side surface;
A cylindrical post-carbon block filter inserted in the inner case in the longitudinal direction and having a second hollow formed in the longitudinal direction in a longitudinal direction thereof and serving as a shaft rod for providing a purified water flow path;
A distribution plate installed on a bottom surface of the inner case and connected to the discharge hole of the first filter unit to distribute purified water flowing through a second coupling groove formed between the discharge hole and the inner case toward the inner wall of the inner case; / RTI >
Wherein the first filter portion is longitudinally fitted between an upper cap having the first stopping jaw and a lower cap having the second stopping jaw;
The second filter unit is coupled to the first coupling groove connected to the outlet of the housing so that the second filter unit can be attached to and detached from the first coupling groove and the exhaust hole formed in the upper end of the first filter unit is coupled to the inside of the second filter unit, A complex filter for water purification. The method according to claim 1,
The raw water, which has flowed through the inlet,
(1) is moved to a lower end of the housing along a gap formed in the inner wall of the housing and the outer wall of the inner case of the second filter portion;
(2) the primary filter filter, the first carbon block filter, and the nanomembrane filter of the first filter unit, and then the primary filter, the primary filter, and the nanomembrane filter;
(3) While the first filtered integer is rising from the bottom surface of the housing, the first filter unit is discharged to the inside of the second filter unit while keeping the first filter unit immersed in the filtered purified water,
(4) The first filtered integer is distributed and discharged in the outward direction of the second filter unit through the distribution plate of the second filter unit,
(5) The water purification composite filter according to (5), wherein the first filtered integer passes through the outer surface of the post-carbon block filter of the second filter part in the direction of the inner surface, and is secondly filtered and then flows out. delete The method according to claim 1,
Wherein the first sediment filter is wound on an outer peripheral surface of the first carbon block filter within a thickness range of 0.5 to 2.5 mm. The method according to claim 1,
Wherein the nanomembrane filter comprises a polyethersulfone (PES) membrane or a polytetrafluoroethylene (PTFE) membrane having pores of 0.0100 to 0.0180 μm. The method according to claim 1,
The post-carbon block filter includes:
A cylindrical second carbon block filter inserted in the inner case in the longitudinal direction and formed with a second hollow in the longitudinal direction in the longitudinal direction and serving as a shaft rod for providing a purified water flow path;
A second sediment filter wound so as to be closely contacted with the outer circumferential surface of the second carbon block filter;
And a third sediment filter wound around the inner circumferential surface of the second carbon block filter so as to be closely contacted with the inner circumferential surface of the second carbon block filter. The method according to claim 1,
Wherein the distribution plate comprises:
An outer ring portion fixed in a horizontal direction along an inner peripheral surface of a lower end of the inner case;
A center portion formed in the center portion and formed to be relatively smaller in diameter than the diameter of the outer ring portion so as to block the constant path discharged in the vertical direction from the primary filtered purified water discharged from the center portion of the first filter portion;
And a plurality of connection fins connecting the outer ring part spaced apart from each other and the center part at regular intervals to form a plurality of windows. The method according to claim 1,
The post-carbon block filter includes:
A cylindrical third sediment filter inserted in the inner case in the longitudinal direction and formed with a third hollow in the longitudinal direction in the center thereof and serving as a shaft rod providing the purified water flow of the raw water;
A fourth shaped sediment filter inserted in the inner case in the longitudinal direction so as to be hermetically sealed along the inner peripheral surface of the inner case;
And a plurality of particulate carbon blends inserted into the fourth and fifth sediment filters. The method according to claim 1,
The second filter unit includes:
An inner case protruding from the upper end of the second fastener;
And a plurality of particulate carbon mixtures inserted into the inner case. 10. The method according to claim 8 or 9,
Wherein the particulate carbon mixture has a ratio of cetane 30 wt%, general carbon 50 wt%, tourmaline 10 wt% and zeolite 10 wt%, and the particle size is 80 x 150 mesh.

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