KR20170130703A - Multiple filters for water purification - Google Patents

Abstract

According to the present invention, a complex filter for water purification is configured such that a pleated filter, a carbon filter, a hollow fiber membrane filter, or a reverse osmosis filter is fixed and disposed between an upper cap and a lower cap in a concentric circle from the outside, and an outer case is covered on the outer side thereof to allow stepwise filtration of raw water to be performed from the outer side to the center, thereby making it possible to easily replace a corresponding filter, which is required to be replaced, while the outer case is separated. In addition, raw water flowing through an inlet of the outer case is gradually filtered with a predetermined pressure toward the center in the longitudinal direction of the pleated filter to allow finally purified water to be discharged, thereby obtaining a rapid water purification effect. It is advantageous in designing that the volume of a water storage tank can be increased by reducing the volume compared with existing filters mounted on a water purifier to minimize an installation space in which the filter is installed.

Description

{Multiple filters for water purification}

More particularly, the present invention relates to a composite filter for purifying raw water, which is installed in a water purifier, and which arranges the filters in a cross-sectional arrangement in an independent outer case, The filtration flow of the raw water is formed horizontally, thereby improving the water efficiency according to the charge area of the filter and reducing the space occupancy of the existing filters when installed in the water purifier. In addition, So that the filter can be easily replaced.

Generally, in the home or office, water line is connected to the water supply side and the water is once again purified and used as drinking water.

In general tap water which is usually supplied through a constant water treatment, the chlorine component used in the disinfection process is not easily removed but is dissolved and remains in the water, so that the tap water has a characteristic odor of chlorine.

A high residual chlorine level in tap water can cause dermatitis and atopic disease in children and people with weak skin. Even if tap water is boiled and used, the evaporated chlorine component leaks into the atmosphere and adversely affects people with weak lungs or lungs. .

In order to remove the chlorine components and suspended matters in the tap water, the water purifier used for the drinking water is equipped with a plurality of interchangeable filters, and the tap water is filtered through the filters to remove the chlorine component contained in the tap water. The filters are used with filters made up of various materials for improving the purification effect.

Generally, as described above, raw water is supplied and filtered through each filter, and purified water is obtained through filtering through 3 to 5 stages according to the water purification performance. Each of these filters is a pleated filter, A carbon filter, a reverse osmosis filter, a hollow fiber filter, and a post carbon filter are selectively used.

The pleated filter is also called 'wrinkle filter' and it acts as a pretreatment to filter out relatively large foreign matter such as dust, various impurities, .

The carbon filter is a free carbon filter that filters heavy metals and ordinary bacteria of 0.1 μm or more. The activated carbon is a product in which particulate activated carbon is interposed in the housing or a product that is compression molded into a predetermined shape is used.

In addition, membranes of the hollow fiber membrane type and the reverse osmosis membrane type are selectively disposed depending on the use of the purified water, which can remove fine components dissolved in water.

Depending on the type of the membrane, a hollow fiber membrane and a reverse osmosis system are used.

The hollow fiber membrane filter is fabricated to have pores of 0.1 to 0.01 탆 in hollow fiber membrane material and is capable of providing weakly alkaline water for filtering impurities, bacteria, chlorine and the like. , And because it is inexpensive, it has been applied to water purifiers such as restaurants where drinking water consumption is high.

Unlike the hollow fiber membrane, the reverse osmotic filter is made of microfilm and has a pore size of 0.0001 탆. In contrast to the hollow fiber membrane, the reverse osmosis filter has an integer of 7 (wastewater): 3 (integer) Hormones, heavy metals, bacteria, etc., are very suitable for purification of ground water containing calcareous matter because fine water purification is performed. The water purification rate is slower than the hollow fiber membrane filter, as can be seen from the pore difference.

The post-carbon filter is also referred to as a post-treatment carbon filter. The post-carbon filter is an integral part of the final position of the purified water. The filter is replaced at the earliest time, and activated carbon, which is harmless to the human body So that it is used as an important filter which is enough to obscure the goodness and the badness of the water taste by the filter.

Since the water purifier for sequentially purifying the raw water through the multi-stage filter having the above-described characteristics requires a plurality of filter installation spaces as described above, The size of the water purifier product is unnecessarily increased, and there is a limitation in overcoming the new design of the water purifier.

Therefore, in recent years, a plurality of filters are used in combination. The above-mentioned water filter for purification is divided into upper and lower parts in a filter housing. The water filter is disclosed in Korean Patent No. 10-1222813 (entitled: complex water filter, published on Jan. 15, 2013, Quot;).

The water filter of the patent document includes an inlet cap at the upper center and an inlet cap at the lower side, An upper water filter coupled to a through hole formed at an upper center of the fixing part formed below the water inlet cap; A connection cap having upper and lower connection portions each having a groove formed at an upper portion and a lower portion to be coupled to a lower through hole of the upper water filter; A lower water filter connected to the lower connecting portion of the connection cap to the through hole formed at the upper center; And an outlet cap which is connected to a lower through hole of the lower water filter and has a water inlet and an upper water outlet at a lower center, A ceramic ball or an antibacterial ball for removing chlorine is provided in the through hole of the water filter and the lower water filter, a catching jaw is formed on the outer circumference of the holding part of the water catching cap, and a catching jaw is formed on the outer circumference of the holding part of the water catching cap And the connection cap is formed on the outer periphery of the upper and lower connection portions, respectively, to be inserted into the through holes of the upper and lower water filters, And a fixed film.

The water filter in the above patent document has a structure in which a bottom water filter composed of a top water filter and a carbon block, which are sidelite, is divided into an upper water filter and a lower water filter, and in addition, The water is simply purified from the lower part to the upper part and implements the purified water through the shower, which is suited for showering as in the literature and is not suitable for the water purification.

Korean Patent Registration No. 10-1222813 (Publication date: 2013.01.15.), Entitled "Combined Water Filter"

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a composite filter which is installed in a water purifier and which purifies raw water to be supplied, It is possible to reduce the space occupancy of the existing filters when installed in a water purifier while enhancing the water efficiency according to the charge area of the filter formed by making the filtration flow of the raw water transversely, And the filter can be used by replacing the filter.

According to an aspect of the present invention,

The hollow fiber membrane filter according to claim 1, wherein the hollow fiber membrane filter is a hollow fiber membrane filter. The hollow fiber membrane filter comprises: a top plate having a side edge portion protruding from an upper center thereof and having a coupling tube portion protruding downwardly at a central portion thereof; And a wrinkle portion for widening the filtration area is formed on an equally spaced circumferential surface of the carbon filter, wherein at least one layer of the nonwoven fabric is overlapped with the carbon filter, The upper end of the filter is guided and joined to the bottom of the upper cap so as to accommodate the outer periphery of the filter, and a coupling jaw in which the inner diameter of the lower side of the carbon filter is guided is formed at the inner center, A bottom cap having a guiding side edge portion, and an upper cap, a pleated filter, and a lower cap excluding the outlet port of the upper cap, A structure comprising a case member an inlet for the raw water inlet provided, characterized in that the center from the outside consisting of a step of filtering the raw water be fulfilled.

The outer case according to the present invention is provided with an upper and a lower detachable type, and is characterized in that an inflow space for inflow of raw water, which is received from the inflow opening, into the outside of the pleated filter is provided.

The hollow fiber membrane filter according to the present invention is characterized in that an upper end portion of the hollow fiber membrane filter is provided with a coupling member for supporting a hollow fiber membrane filter and guided to the coupling pipe portion, and at least one hermetic packing is mounted on the outer periphery of the coupling member.

According to the present invention,

A reverse osmosis filter in which one side is guided and coupled to a coupling tube portion of an upper cap, and a reverse osmosis filter, And a wrinkle portion for widening the filtration area is formed on an equally spaced circumferential surface of the carbon filter, wherein at least one layer of the nonwoven fabric is overlapped with the carbon filter, The upper end of the filter is guided and joined to the bottom of the upper cap so as to accommodate the outer periphery of the filter, and a coupling jaw in which the inner diameter of the lower side of the carbon filter is guided is formed at the inner center, A bottom cap having a guiding side edge portion, and an upper cap, a pleated filter, and a lower cap excluding the outlet port of the upper cap, A structure comprising a case member an inlet for the raw water inlet provided, characterized in that the center from the outside consisting of a step of filtering the raw water be fulfilled.

According to the present invention, at least one hermetic packing is mounted on the outer periphery of the upper end portion of the reverse osmosis filter guided by the coupling tube portion and is coupled to the coupling tube portion.

The composite filter for water purification according to the present invention is a combination of a pleated filter, a carbon filter, a hollow fiber membrane filter or a reverse osmosis filter concentrically arranged from the outside and an outer case on the outside of the filter. The filter can be easily replaced in a state in which the external case is separated, and the raw water introduced through the inlet of the external case is gradually filtered with a predetermined pressure from the longitudinal direction to the center of the pleated filter, It is designed to increase the volume of the water tank by securing the installation space where the filter is installed by minimizing the volume compared to the existing filters installed in the water purifier, ≪ / RTI >

In addition, when the filter is accommodated in the case of the same length, the filtration area of one kind of filter is wider than that of the composite filter in which the filters are divided vertically, so that the purification rate is high and the purified amount is also increased.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view of a water purification composite filter according to the present invention,
2 is a cross-sectional view of a composite filter according to the present invention,
3 is a sectional view taken along the line AA in Fig. 1,
4 is a cross-sectional view of a water purification composite filter according to an embodiment of the present invention,
FIG. 5 is a cross-sectional view of the composite filter shown in FIG. 4,
6 is a sectional view taken along line BB of Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

The water purification composite filter 100 according to the present invention will now be described with reference to FIGS. 1 to 3. FIG.

An upper cap 10 having a side edge 11 and an outlet 12 protruding from the center of the upper edge and a coupling tube 13 protruding downward from the lower edge of the upper cap 10, A hollow fiber membrane filter 20 to which one end of the hollow fiber membrane filter 20 is coupled by being guided and coupled to the tubular portion 13 and a coupling tube portion 13 of the upper cap 10, And at least one layer of nonwoven fabric is overlapped and a wrinkle portion 51 for widening the filtration area is formed on the circumference at regular intervals and the outer periphery of the carbon filter 40 is accommodated An upper end is formed at an inner center of the upper end of the upper cap 10 and an engaging protrusion 62 for guiding the inner diameter of the lower end of the carbon filter 40 is coupled to the lower end of the upper cap 10, A lower cap 60 having a side edge portion 61 through which the lower end of the filter 50 is guided, And an outer case 70 that houses the upper cap 10, the pleated filter 50, and the lower cap 60 except for the outer cap 70 and the inlet 71 for inflow of raw water into the lower center, And the stepwise filtration of the raw water is performed.

This allows the pleated filter 50 to surround the carbon filter 40 so that the carbon filter 40 is secondarily purified by the pleated filter 50 so that the most important role The life span of the carbon filter 40 that carries the carbon filter 40 can be extended.

In the present invention, the carbon filter (40) is a hollow tube type block formed by compressing activated carbon, and mainly removes dissolved chlorine and organic chemicals. The carbon filter (40) is excellent in adsorption performance so that foreign substances or impurities contained in raw water Adsorbed, and exhibits high decontamination efficiency and long lifetime because there is no channeling phenomenon as compared with the filling type.

In the present invention, the pleated filter 50 is a filter capable of processing a greater amount of raw water at the same time by widening the contact area of the filter with respect to the raw water using a nonwoven fabric.

The external case 70 is preferably vertically separated and includes an inflow space 72 through which the raw water received from the inflow port 71 flows into the outside of the pleated filter 50.

The upper end of the hollow fiber membrane filter 20 is provided with a coupling member 22 which supports a hollow fiber membrane filter and is guided to the coupling tube portion 13. One or more airtight packing P ). Here, the hollow fiber membrane filter 20 is a porous filter that removes minute materials using a yarn-like hollow hollow fiber and removes contaminants in the raw water through numerous micropores on the surface of the membrane.

The hollow fiber membrane filter 20 has a plurality of layers of hollow fibers arranged in a cylindrical shape so as to form a passage 20a through which water finally purified at the center passes and is guided to the outlet 12 of the upper cap 10. [ As shown in FIG.

Meanwhile, as shown in FIGS. 4 to 6, the water purification composite filter 100 according to the present invention includes a water-

An upper cap 10 having a side edge 11 and an outlet 12 protruding from the center of the upper edge and a coupling tube 13 protruding downward from the lower edge of the upper cap 10, A reverse osmosis filter 30 connected to one side of the tubular portion 13 so as to be coupled to the tubular portion 13 and a coupling tube portion 13 of the upper cap 10 in a hollow cylindrical shape accommodating the reverse osmosis filter 30, And at least one layer of nonwoven fabric is overlapped and a wrinkle portion 51 for widening the filtration area is formed on the circumference at regular intervals and the outer periphery of the carbon filter 40 is accommodated An upper end is formed at an inner center of the upper end of the upper cap 10 and an engaging protrusion 62 for guiding the inner diameter of the lower end of the carbon filter 40 is coupled to the lower end of the upper cap 10, A lower cap 60 having a side edge portion 61 through which the lower end of the filter is guided, And an outer case 70 which houses the outer cap 10, the pleated filter 50 and the lower cap 60 and has an inlet for inflow of raw water into the lower center thereof. Step filtration is performed.

That is, unlike the above-described hollow fiber membrane filter 20, the composite filter 100 has a structure in which the upper cap, the carbon filter, and the lower cap are configured to be capable of ultimately performing a minute purified water such as an environmental hormone, heavy metal, Filter is disposed.

The reverse osmosis filter (30) coupled to the coupling tube (13) has at least one airtight packing (P) mounted on its upper outer periphery so as to be stably coupled to the coupling tube (13).

Here, the pleated filter 50 is also configured to surround the carbon filter 40, so that the carbon filter 40 primarily cleans the water that has been primarily purified by the pleated filter 50, The life of the carbon filter 40 can be prolonged.

The combination of the water purifying filter according to the present invention and the operation according to the practical application will be described as follows.

As shown in FIGS. 1 and 4, a hollow fiber membrane filter 20 or reverse osmosis filter 30 is positioned at the center, and a carbon filter And the pleated filter 50 is arranged concentrically around the outer periphery of the carbon filter 40. [0050]

This is because the raw water introduced at a predetermined pressure through the inlet 71 of the outer case 70 is primarily supplied to the lateral sides of the pleated filter 50 along the longitudinal direction of the pleated filter 50, , Filtering the relatively particulate rust and impurities, wherein the filtered water passes through a cross-section of the carbon filter (40) located inside the pleated filter (50), along with a second filtering step, The purified water is thirdly filtered through the desert filter 20 or the reverse osmosis filter 30 and passed through the outlet 12 of the upper cap 10.

Since the hollow fiber membrane filter 20 and the reverse osmosis filter 30 are water purified through the respective filters in the lateral direction in the longitudinal direction of the filter, Thereby ensuring an optimal life time at which use is terminated.

As described above, the purified water discharged through the outlet port 12 is sent to the water storage tank of the water purifier so that it can be supplied with the requested drinking water.

That is, the composite filter 100 according to the present invention has a structure in which raw water is infiltrated and filtered in all directions of the outer periphery having a maximum contact area as compared with a conventional composite filter which is purified by moving raw water from the lower part to the upper part or from the upper part to the lower part to be.

This is because a large number of filters can be utilized in one case 70 to utilize a wide filtering area as much as possible, so that the integer time of the raw water is faster than that of the conventional composite filter and the purification efficiency is excellent. That is, when the filter is accommodated in the case of the same length, compared with the composite filter in which the filters are divided vertically, the filtration area of one kind of filter is wider than that of the composite filter.

In view of the above, the water-purifying composite filter 100 can reduce the number of the filters compared to the number of filters installed in the water purifier and secure the space occupied by the filters in the water purifier. By way of example, a water purifier can increase the volume of a reservoir tank or provide a favorable benefit to a design design.

 Also, the method for installing the water purification composite filter 100 according to the present invention is also such that the filters 70 are disposed concentrically between the upper and lower caps 10 and 60, The filter having the end of life can be easily replaced and used. Therefore, there is an advantage that unnecessary waste due to the purchase of each individually manufactured filter can be reduced.

As described above, the present invention has been described with reference to particular embodiments, such as specific elements, and specific embodiments and drawings. However, it should be understood that the present invention is not limited to the above- And various modifications and changes may be made thereto by those skilled in the art to which the present invention pertains.

Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

10: upper cap 12: outlet
13: coupling tube 20: hollow fiber membrane filter
22: coupling member 30: reverse osmosis filter
40: carbon filter 50: pleated filter
51: wrinkle portion 60: bottom cap
70: Exterior case 71: Inlet port
72: inflow space P: secret packing

Claims (7)

In the water purification composite filter,
The composite filter (100)
An upper cap 10 having a side edge 11 and an outlet 12 protruding from an upper center thereof and a coupling tube 13 protruding downward from the lower edge of the upper cap 10,
A hollow fiber membrane filter 20 to which one side is guided and coupled to the coupling tube 13 of the upper cap 10,
A carbon filter (40) coupled in a form of a hollow cylinder for receiving the hollow fiber membrane filter (20) to receive the coupling tube portion (13) of the upper cap (10)
At least one layer of nonwoven fabric is overlapped and a wrinkle portion 51 for widening the filtration area is formed on an equally spaced circumference and an upper end of the upper cap 10 A pleated filter 50 guided and coupled to the bottom portion,
A lower cap 60 having a coupling rim 62 at an inner center of which the inner diameter of the lower side of the carbon filter 40 is guided and having a side edge 61 at which the lower end of the pleated filter 50 is guided, Wherein the step of filtering the raw water from the outside to the center is performed. The method according to claim 1,
An outer case 10 which accommodates the upper cap 10, the pleated filter 50 and the lower cap 60 except for the outlet port 12 of the upper cap 10 and has an inlet 71 for inflow of raw water into the lower center thereof 70). ≪ / RTI > 3. The method of claim 2,
Wherein the outer case 70 is vertically and separably provided and an inflow space 72 through which the raw water received from the inflow opening 71 is introduced from the outer circumference of the pleated filter 50 is provided and combined. Compound filter. The method according to claim 1,
The upper end of the hollow fiber membrane filter 20 is provided with a coupling member 22 which supports a hollow fiber membrane filter and is guided to the coupling tube portion 13. One or more airtight packing P Wherein the filter is mounted on the filter. In the water purification composite filter,
The composite filter (100)
An upper cap 10 having a side edge 11 and an outlet 12 protruding from an upper center thereof and a coupling tube 13 protruding downward from the lower edge of the upper cap 10,
A reverse osmosis filter (30) having one side guided and coupled to a coupling tube portion (13) of the upper cap (10)
A carbon filter (40) coupled in the form of a hollow cylindrical shape for accommodating the reverse osmosis filter (30) in such a manner as to receive the coupling tube portion (13) of the upper cap (10)
At least one layer of nonwoven fabric is overlapped and a wrinkle portion 51 for widening the filtration area is formed on an equally spaced circumference and an upper end of the upper cap 10 A pleated filter 50 guided and coupled to the bottom portion,
And a lower cap (60) having a coupling step (62) at an inner center of which the inner diameter of the lower side of the carbon filter (40) is guided, and a side edge part (61) through which the lower end of the pleated filter is guided Wherein the step of filtering the raw water is performed from the outside to the center. 6. The method of claim 5,
An outer case 70 accommodating the upper cap 10, the pleated filter 50 and the lower cap 60 except for the outlet 10 of the upper cap 10 and having an inlet for inflow of raw water into the lower center thereof Further comprising a filter for filtering water. 5. The method of claim 4,
Wherein at least one gas tight packing (P) is attached to an outer periphery of an upper end portion of the reverse osmosis filter (30) guided by the coupling tube portion (13) and is coupled to the coupling tube portion (13).

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