KR200242687Y1 - A fiter cartridge of water purifier - Google Patents

Abstract

The present invention relates to a water purifier filter cartridge, wherein the outer layer (1) is filled with a polypropylene nonwoven filter, and the middle layer (2) has carbon particles (2a), activated carbon fibers (2b), and adhesives for adhesion from the upper end to the lower end in the longitudinal direction. The nonwoven fabric 2c is filled in turn, and the inner layer 3 has a cylindrical structure filled with a polysulfone hollow fiber membrane, and a water purification outlet is formed in the bottom center (inner part), and in the bottom outer part (outer part) One raw water inlet 4 is formed. The present invention is excellent in water purification performance because the middle layer is divided into three layers in the longitudinal direction.

Description

Water Purifier Filter Cartridge {A fiter cartridge of water purifier}

The present invention relates to a water purifier for obtaining drinking water.

As the industry develops, the quantitative increase of various pollutants is rapidly spreading, causing serious water quality problems for drinking water used as drinking water.

In particular, contamination by organic matters such as bacteria, which are likely to be contained in domestic tap water, is serious. The cause of this is due to the deterioration of the water supply pipes supplied from the purified water to the homes. It is caused by various infectious bacteria and bacteria such as cholera, typhoid fever, dysentery, and the like, which causes harm to the human body and causes discomfort when drinking by smell and taste caused by these pollutants.

In order to remove various contaminants in the drinking water, water purifiers using ion exchange resins and activated carbon cartridges or cartridges in which activated carbon and polymer membrane filters are combined are used.

Water purifiers using ion-exchange resin cartridges have a heavy metal removal function that removes and removes metal ions in water, but has no function of removing harmful bacteria such as Escherichia coli.

Water purifier using activated carbon cartridge removes impurities, odors and pigments by molecular adsorption of activated carbon. Especially, it has excellent function of removing residual chlorine for disinfection. Because it is mixed with the purified water, rather than drinking water that contains more organic matter than the untreated water, and if you stop using it for a while, various bacteria grow in the water purifier cartridge, causing many problems in use.

On the other hand, a water purifier using a polymer membrane filter is applied reverse osmosis, microfiltration, ultrafiltration, the main material is a semi-permeable membrane module.

The semi-permeable membrane module has a wide range of uses, and has been manufactured in various forms. One of them is a hollow fiber-type separator, which is more widely used in various membrane devices because of the higher efficiency of the permeation module than other types such as flat membranes.

In addition, the hollow fiber membrane can be self-supporting and exhibits high resistance to pressure acting perpendicularly to the membrane surface, so that the hollow fiber membrane is widely used in a separation device requiring a relatively high pressure.

In the separation device using such a membrane, the reverse osmosis membrane method has excellent separation performance and removes various mineral components contained in drinking water, and the amount of purified water is small compared to the amount of raw water, and a separate high pressure application device is required, and a separate purification A storage tank must be installed.

In addition, since the microfiltration membrane method, that is, the module using the microfiltration membrane has low separation performance, various suspended substances can be removed, but bacteria cannot be removed.

Therefore, there is an ultrafiltration membrane method that compensates for the disadvantages of the reverse osmosis membrane method and the microfiltration membrane method.

This ultrafiltration membrane method is to remove various suspended substances, dust and bacteria that are the most serious pollutants among the foreign substances contained in the water in consideration of proper water quality, proper quantity and economical aspect as drinking water, and the mineral component is permeated as it is.

These ultrafiltration hollow fiber modules for water treatment usually fill thousands or tens of thousands of hollow fiber membrane bundles in a cylindrical case, and the ends of the hollow fiber membranes and the ends of the cylindrical case to separate the fluid flow between the inner and outer surfaces of the hollow fiber membranes. It is prepared by sealing it with an adhesive.

The primary filter is connected to the front end of the hollow fiber membrane to remove various suspended substances and debris to prolong the life of the hollow fiber membrane, and the middle of the primary filter and the hollow fiber membrane cartridge to remove odors, tastes, especially disinfectant residual chlorine. It is prepared by inserting an activated charcoal cartridge into the US (see US Patent 4636307).

Further, according to Japanese Patent Laid-Open No. 64-7907, in order to downsize the hollow fiber membrane cartridge for water treatment, there is also a method in which activated carbon is inserted into the hollow fiber membrane cartridge and separated into an activated carbon layer and a hollow fiber membrane layer in one cartridge to be combined.

These methods have limitations in miniaturization of the device because the carbon must be filled in a large amount in order to increase the specific surface area of the activated carbon serving as a filter because activated carbon exists in a powder or particle state.

An object of the present invention is to provide a water purifier filter cartridge having a good ability to remove impurities, chlorine and odors even when the filter cartridge is made small in size, by solving the problems of the conventional water purifier filter cartridges.

The present invention aims to provide a water purifier filter cartridge having a good removal ability (purifying capacity) such as impurities even in a small production. To this end, the present invention divides the cylindrical filter cartridge into an outer layer / intermediate layer / inner layer, and further divides the intermediate layer into a carbon particle layer / active carbon fiber layer / adhesive nonwoven fabric layer in the longitudinal direction.

1 is a perspective schematic view of the present invention

Figure 2 is a schematic cross-sectional view of the longitudinal layer of the subject innovation

3 is a bottom schematic view of the present invention

※ Explanation of main parts in drawings

1 outer layer (non-woven fabric filter) 2 middle layer (carbon particles / active carbon fiber / nonwoven fabric)

3: inner layer (hollow fiber membrane) 4: raw water inlet 5: water purification outlet

2a: carbon particles 2b: activated carbon fibers 2c: nonwoven fabric for adhesion

The water purifier filter cartridge of the present invention for achieving the above object is filled with a polypropylene nonwoven filter in the outer layer (1), the carbon layer (2a), activated carbon fibers (2b) from the upper end to the lower end in the longitudinal direction (2) ) And the adhesive nonwoven fabric 2c are sequentially filled, and the inner layer 3 has a cylindrical structure filled with a polysulfone hollow fiber membrane, and a bottom of the bottom (inner layer portion) is provided with a water outlet. The outer layer part) is characterized in that one raw water inlet 4 is formed.

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

First, the present invention has a cylindrical structure divided into three sections of the inner layer (3), the middle layer (2) and the outer layer (1) toward the outer circumferential surface in its central axis as shown in FIG.

The outer layer 1 is filled with a polypropylene nonwoven filter in a roll state, and the inner layer 3 is filled with a polysulfone hollow fiber membrane.

In addition, the intermediate layer 2 is filled with carbon particles 2a, activated carbon fibers 2b, and an adhesive nonwoven fabric 2c in order from the top to the bottom in the longitudinal direction. The carbon particles are preferably about 60 to 100 mesh, and the activated carbon fiber 2b is preferably about 30 to 50 mesh. In other words, raw water is first treated with carbon particles 2a having a relatively large diameter, and then treated with activated carbon fibers 2b having a relatively small diameter.

In addition, the raw water inlet 4 and the purified water outlet 5 is formed on the bottom of the present invention, respectively. The water purification outlet 5 is formed at the center of the bottom (inner layer portion) and serves to discharge the purified water out of the water filter filter cartridge.

On the other hand, one of the raw water inlet (4) is formed on the outer side (outer layer portion) of the bottom as shown in Figure 3 serves to introduce the raw water into the outer layer (1) that is a nonwoven filter.

Looking at the water purification mechanism of the present invention in more detail, first, the raw water is introduced into the cartridge outer layer (1) filled with the nonwoven fabric through the raw water inlet (4), the relatively large particles present in the raw water, such as dust and debris Impurities are removed. As a result, the impurities do not flow into the intermediate layer 2 and the inner layer 3 filter, which may increase the filter life.

Next, the water passing through the cartridge outer layer 1 passes through the carbon particles 2a positioned at the upper end of the cartridge intermediate layer 2, and the organic chemical components such as the chlorine component and the odor in the water are primarily removed.

Subsequently, the water passing through the carbon particles 2a is removed from the unpleasant taste, smell, etc. remaining in the water while passing through the activated carbon fibers 2b, thereby increasing the purity of the water and improving the water taste.

At this time, the adhesive nonwoven fabric 2c located at the lowermost end of the cartridge intermediate layer 2 serves to prevent the carbon particles 2a or the activated carbon fibers 2b from flowing into the cartridge inner layer 3 filled with the hollow fiber membranes. do.

The water passing through the activated carbon fibers 2b is continuously introduced into the cartridge inner layer 3 filled with the polysulfone hollow fiber membrane, thereby removing various bacteria and impurities remaining in the water and minerals that are good for the body. The component is purified as it is, and flows out of the water purifier cartridge through the water purification outlet (5).

Thus, since the present invention purifies raw water with filters of various materials in stages, that is, non-woven fabric-carbon particles-active carbon fiber-hollow fiber membrane is purified in order, water purification performance is greatly improved.

When the tap water was supplied to the water purifier of the present invention at an instantaneous flow rate of 5 L / min, the normal bacteria and Escherichia coli were not detected, the ammonia nitrogen was below 0.05 mg / ℓ, and the chlorine ion was below 5 mg / ℓ. It was.

The present invention is very excellent in the ability to remove impurities, odors, organic substances, etc., even in small production.

Claims (1)

The outer layer 1 is filled with a polypropylene nonwoven filter, and the middle layer 2 is filled with carbon particles 2a, activated carbon fibers 2b, and an adhesive nonwoven fabric 2c in order from the upper end to the lower end in the longitudinal direction. The inner layer 3 has a cylindrical structure filled with a polysulfone hollow fiber membrane, a water purification outlet is formed at the center of the bottom (inner layer), and one raw water inlet 4 is formed at the outer side of the bottom (outer layer). There is a water filter filter cartridge.