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Water purification cartridge

A water purification and filter cartridge technology, which is applied in the direction of adsorption water/sewage treatment, osmosis/dialysis water/sewage treatment, semi-permeable membrane separation, etc., can solve the problem of loss of water tightness at the joint and low assembly workability of the water purification cartridge and other problems, to achieve the effect of suppressing insufficient adsorption treatment, preventing layer thickness reduction, and excellent assembly

Active Publication Date: 2018-08-21
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And, if the powder filter material is sandwiched by the embedding portion, there is a possibility that the watertightness of the embedding portion will be lost. Partial way to fill the powder filter material
Therefore, there is a problem that the assembly workability at the time of manufacture of the water purification cartridge is low
[0010] Furthermore, even in such Figure 8 In the case of the water purification filter cartridge as shown, the engagement portion of the outer cylinder and the inner cover is formed on the inner wall surface of the outer cylinder (that is, the surface of the outer cylinder that is in contact with the powder filter material), so because In the same situation as above, the powder filter material has to be filled in such a way that the powder filter material does not come into contact with the engagement portion, and there is a problem that the assembly workability during the manufacture of the water purification cartridge is low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] Coconut shell activated carbon is used as the powder filter material, and the particle size is measured by the laser diffraction / scattering method. The average particle size is 114 μm, and the particle size is 50% of the average particle size. That is, the total mass of activated carbon with a thickness of 57 μm or less is 10% with respect to the mass of the entire activated carbon. Fill the activated carbon in the figure 1 According to the test method of household water purifier determined in JIS S 3201, the water purification filter cartridge with the structure is 3L / min, SV=3750Hr -1 Through water, carry out the initial flow test and the chloroform filtration ability test. In the trichloromethane filtration capacity test, the removal rate of 80% was set as the end point, and the total water flow rate up to 80% was defined as the trichloromethane filtration capacity. The results are shown in Table 1. Initial flow rate, trichloromethane filtration capacity showed e...

Embodiment 2

[0107]Coconut shell activated carbon is used as the powder filter material, and the particle size is measured by the laser diffraction / scattering method. The average particle size is 119 μm, and the particle size is 60% of the average particle size. That is, the total mass of activated carbon with a thickness of 71 μm or less is 10% with respect to the mass of the entire activated carbon. Fill the activated carbon in the figure 1 According to the test method of household water purifiers determined in JIS S 3201, the water purification filter cartridge with the structure is 3L / min, SV=3750Hr -1 Water was passed through, and the results of the initial flow test and the chloroform filtration ability test are shown in Table 1. Initial flow rate, trichloromethane filtration capacity showed excellent results.

Embodiment 3

[0109] Coconut shell activated carbon is used as a powder filter material, and the particle size is measured by the laser diffraction / scattering method. The average particle size is 130 μm, and the particle size is 40% of the average particle size. That is, the total mass of activated carbon with a thickness of 52 μm or less is 10% with respect to the mass of the entire activated carbon. Fill the activated carbon in the figure 1 According to the test method of household water purifiers determined in JIS S 3201, the water purification filter cartridge with the structure is 3L / min, SV=3750Hr -1 Water was passed through, and the results of the initial flow test and the chloroform filtration ability test are shown in Table 1. Chloroform filtration capability showed excellent results. The initial flow rate was slightly worse than that of Example 1 and Example 2.

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Abstract

The purpose of the present invention is to provide a water purification cartridge that can be assembled easily and has high filtration capacity. Provided is a water purification cartridge having a powder filtering material accommodated in a space formed by a casing having a raw water inlet and a purified water outlet and an outside cover covering the upper end of the casing, wherein: an inner cylinder and outer cylinder are provided within the casing, and an upper inner cover for covering a space between the inner cylinder and outer cylinder is provided on the end part on the same side of theinner cylinder and outer cylinder; the powder filtering material is accommodated in a ring-shaped accommodating space formed by the inner cylinder, outer cylinder and upper inner cover; and the upperinner cover is fitted water tightly to the inside wall surface of the inner cylinder.

Description

technical field [0001] The invention relates to a water purification filter cartridge installed in a water purifier. In particular, it relates to a water purification cartridge for a faucet direct connection type water purifier directly connected to a water faucet in general households. Background technique [0002] In recent years, water purifiers for purifying tap water in families have been widely used. In these water purifiers, a water purification cartridge containing various filter materials for purifying tap water is used. As a filter material, generally use powder (granular, powdery) activated carbon and ion exchangers that remove free residual chlorine in tap water, bleaching powder smell, musty smell, trihalomethane, lead and other heavy metal ions, etc. Hollow fiber membrane for removing turbid components, bacteria, etc. These filters can only handle a limited amount of total filtered water, so continue to use the water purifier while replacing the water filter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28B01D63/02C02F1/44
CPCC02F1/28C02F1/44B01D63/031
Inventor 马场玲子冈崎博成小泽久子中岛直纪
Owner TORAY IND INC
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