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water filter cartridge

A technology for water purification and filter cartridges, which is applied in the fields of adsorption water/sewage treatment, permeation/dialysis water/sewage treatment, membrane technology, etc., which can solve the problems of low assembly workability of water purification cartridges and loss of water tightness of the embedded part. , to achieve the effect of inhibiting insufficient adsorption treatment, preventing layer thickness reduction and high filtration capacity

Active Publication Date: 2021-10-12
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 capacity 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 ...

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

An object of the present invention is to provide a water purification cartridge excellent in assemblability and high in filtering capacity. The water purification filter cartridge of the present invention accommodates a powder filter material inside a space formed by a shell having a raw water inlet and a clean water outlet and an outer cover that closes the upper end of the aforementioned shell, and is characterized in that an inner cylinder and an outer shell are provided in the shell. cylinder, and the end of the same side of the aforementioned inner cylinder and the aforementioned outer cylinder is equipped with an upper inner cover covering the space between the aforementioned inner cylinder and the aforementioned outer cylinder, and the powder filter material is accommodated in the inner cylinder, the outer cylinder and the upper inner cover. In the formed ring-column-shaped accommodation space, the upper inner cover is watertightly embedded in the inner wall surface of the aforementioned 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 Patents(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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